]>
Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* IBM RS/6000 "XCOFF" back-end for BFD. |
250d07de | 2 | Copyright (C) 1990-2021 Free Software Foundation, Inc. |
2ce18a16 | 3 | Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore. |
252b5132 RH |
4 | Archive support from Damon A. Permezel. |
5 | Contributed by IBM Corporation and Cygnus Support. | |
6 | ||
eb1e0e80 | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
eb1e0e80 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
eb1e0e80 | 12 | (at your option) any later version. |
252b5132 | 13 | |
eb1e0e80 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
eb1e0e80 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
23 | ||
252b5132 RH |
24 | |
25 | /* This port currently only handles reading object files, except when | |
26 | compiled on an RS/6000 host. -- no archive support, no core files. | |
27 | In all cases, it does not support writing. | |
28 | ||
252b5132 | 29 | This is in a separate file from coff-rs6000.c, because it includes |
6a125b16 | 30 | system include files that conflict with coff/rs6000.h. */ |
252b5132 RH |
31 | |
32 | /* Internalcoff.h and coffcode.h modify themselves based on this flag. */ | |
33 | #define RS6000COFF_C 1 | |
34 | ||
35 | /* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so | |
36 | we have to define _LONG_LONG for older versions of gcc to get the | |
37 | proper alignments in the user structure. */ | |
38 | #if defined(_AIX41) && !defined(_LONG_LONG) | |
39 | #define _LONG_LONG | |
40 | #endif | |
41 | ||
252b5132 | 42 | #include "sysdep.h" |
3db64b00 | 43 | #include "bfd.h" |
252b5132 RH |
44 | #include "libbfd.h" |
45 | ||
46 | #ifdef AIX_CORE | |
47 | ||
48 | /* AOUTHDR is defined by the above. We need another defn of it, from the | |
49 | system include files. Punt the old one and get us a new name for the | |
50 | typedef in the system include files. */ | |
51 | #ifdef AOUTHDR | |
52 | #undef AOUTHDR | |
53 | #endif | |
54 | #define AOUTHDR second_AOUTHDR | |
55 | ||
56 | #undef SCNHDR | |
57 | ||
d6867a75 | 58 | /* Support for core file stuff. */ |
252b5132 RH |
59 | |
60 | #include <sys/user.h> | |
59d9f049 ND |
61 | #define __LDINFO_PTRACE32__ /* for __ld_info32 */ |
62 | #define __LDINFO_PTRACE64__ /* for __ld_info64 */ | |
252b5132 RH |
63 | #include <sys/ldr.h> |
64 | #include <sys/core.h> | |
59d9f049 ND |
65 | #include <sys/systemcfg.h> |
66 | ||
cc429f57 JB |
67 | /* Borrowed from <sys/inttypes.h> on recent AIX versions. */ |
68 | typedef unsigned long ptr_to_uint; | |
69 | ||
59d9f049 ND |
70 | #define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any) |
71 | ||
72 | /* AIX 4.1 changed the names and locations of a few items in the core file. | |
73 | AIX 4.3 defined an entirely new structure, core_dumpx, but kept support for | |
74 | the previous 4.1 structure, core_dump. | |
75 | ||
76 | AIX_CORE_DUMPX_CORE is defined (by configure) on AIX 4.3+, and | |
77 | CORE_VERSION_1 is defined (by AIX core.h) as 2 on AIX 4.3+ and as 1 on AIX | |
78 | 4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1 | |
3d855632 | 79 | or else defines it as 0. */ |
59d9f049 ND |
80 | |
81 | #if defined(CORE_VERSION_1) && !CORE_VERSION_1 | |
82 | # undef CORE_VERSION_1 | |
83 | #endif | |
84 | ||
85 | /* The following union and macros allow this module to compile on all AIX | |
86 | versions and to handle both core_dumpx and core_dump on 4.3+. CNEW_*() | |
87 | and COLD_*() macros respectively retrieve core_dumpx and core_dump | |
3d855632 | 88 | values. */ |
59d9f049 | 89 | |
3d855632 | 90 | /* Union of 32-bit and 64-bit versions of ld_info. */ |
59d9f049 | 91 | |
d6867a75 SM |
92 | typedef union |
93 | { | |
94 | #if defined (__ld_info32) || defined (__ld_info64) | |
59d9f049 ND |
95 | struct __ld_info32 l32; |
96 | struct __ld_info64 l64; | |
97 | #else | |
98 | struct ld_info l32; | |
99 | struct ld_info l64; | |
100 | #endif | |
101 | } LdInfo; | |
102 | ||
3d855632 | 103 | /* Union of old and new core dump structures. */ |
59d9f049 | 104 | |
d6867a75 SM |
105 | typedef union |
106 | { | |
59d9f049 | 107 | #ifdef AIX_CORE_DUMPX_CORE |
d6867a75 | 108 | struct core_dumpx new_dump; /* New AIX 4.3+ core dump. */ |
59d9f049 | 109 | #else |
d6867a75 SM |
110 | struct core_dump new_dump; /* For simpler coding. */ |
111 | #endif | |
07d6d2b8 | 112 | #ifndef BFD64 /* Use old only if gdb is 32-bit. */ |
d6867a75 SM |
113 | struct core_dump old; /* Old AIX 4.2- core dump, still used on |
114 | 4.3+ with appropriate SMIT config. */ | |
59d9f049 | 115 | #endif |
59d9f049 ND |
116 | } CoreHdr; |
117 | ||
3d855632 | 118 | /* Union of old and new vm_info structures. */ |
59d9f049 | 119 | |
1605fc4f | 120 | #ifdef CORE_VERSION_1 |
d6867a75 SM |
121 | typedef union |
122 | { | |
59d9f049 | 123 | #ifdef AIX_CORE_DUMPX_CORE |
d3ce72d0 | 124 | struct vm_infox new_dump; |
59d9f049 | 125 | #else |
d3ce72d0 | 126 | struct vm_info new_dump; |
59d9f049 | 127 | #endif |
d6867a75 | 128 | #ifndef BFD64 |
6a125b16 | 129 | struct vm_info old; |
d6867a75 | 130 | #endif |
59d9f049 | 131 | } VmInfo; |
1605fc4f | 132 | #endif |
59d9f049 | 133 | |
3d855632 | 134 | /* Return whether CoreHdr C is in new or old format. */ |
59d9f049 ND |
135 | |
136 | #ifdef AIX_CORE_DUMPX_CORE | |
d6867a75 | 137 | # ifndef BFD64 |
f03265d9 | 138 | # define CORE_NEW(c) (!(c).old.c_entries) |
d6867a75 | 139 | # else |
f03265d9 | 140 | # define CORE_NEW(c) 1 |
d6867a75 | 141 | # endif |
59d9f049 ND |
142 | #else |
143 | # define CORE_NEW(c) 0 | |
144 | #endif | |
145 | ||
e0c88096 NC |
146 | /* Return whether CoreHdr C usese core_dumpxx structure. |
147 | ||
148 | FIXME: the core file format version number used here definitely indicates | |
149 | that struct core_dumpxx should be used to represent the core file header, | |
150 | but that may not be the only such format version number. */ | |
151 | ||
152 | #ifdef AIX_5_CORE | |
07d6d2b8 | 153 | # define CORE_DUMPXX_VERSION 267312562 |
d3ce72d0 | 154 | # define CNEW_IS_CORE_DUMPXX(c) ((c).new_dump.c_version == CORE_DUMPXX_VERSION) |
e0c88096 NC |
155 | #else |
156 | # define CNEW_IS_CORE_DUMPXX(c) 0 | |
157 | #endif | |
158 | ||
3d855632 | 159 | /* Return the c_stackorg field from struct core_dumpx C. */ |
59d9f049 ND |
160 | |
161 | #ifdef AIX_CORE_DUMPX_CORE | |
162 | # define CNEW_STACKORG(c) (c).c_stackorg | |
163 | #else | |
164 | # define CNEW_STACKORG(c) 0 | |
165 | #endif | |
166 | ||
3d855632 | 167 | /* Return the offset to the loader region from struct core_dump C. */ |
59d9f049 ND |
168 | |
169 | #ifdef AIX_CORE_DUMPX_CORE | |
170 | # define CNEW_LOADER(c) (c).c_loader | |
171 | #else | |
172 | # define CNEW_LOADER(c) 0 | |
173 | #endif | |
174 | ||
3d855632 | 175 | /* Return the offset to the loader region from struct core_dump C. */ |
59d9f049 ND |
176 | |
177 | #define COLD_LOADER(c) (c).c_tab | |
178 | ||
3d855632 | 179 | /* Return the c_lsize field from struct core_dumpx C. */ |
59d9f049 ND |
180 | |
181 | #ifdef AIX_CORE_DUMPX_CORE | |
182 | # define CNEW_LSIZE(c) (c).c_lsize | |
183 | #else | |
184 | # define CNEW_LSIZE(c) 0 | |
185 | #endif | |
186 | ||
3d855632 | 187 | /* Return the c_dataorg field from struct core_dumpx C. */ |
252b5132 | 188 | |
59d9f049 ND |
189 | #ifdef AIX_CORE_DUMPX_CORE |
190 | # define CNEW_DATAORG(c) (c).c_dataorg | |
191 | #else | |
192 | # define CNEW_DATAORG(c) 0 | |
193 | #endif | |
252b5132 | 194 | |
3d855632 | 195 | /* Return the c_datasize field from struct core_dumpx C. */ |
252b5132 | 196 | |
59d9f049 ND |
197 | #ifdef AIX_CORE_DUMPX_CORE |
198 | # define CNEW_DATASIZE(c) (c).c_datasize | |
199 | #else | |
200 | # define CNEW_DATASIZE(c) 0 | |
201 | #endif | |
202 | ||
3d855632 | 203 | /* Return the c_impl field from struct core_dumpx C. */ |
59d9f049 | 204 | |
83954261 | 205 | #if defined (HAVE_ST_C_IMPL) || defined (AIX_5_CORE) |
59d9f049 ND |
206 | # define CNEW_IMPL(c) (c).c_impl |
207 | #else | |
208 | # define CNEW_IMPL(c) 0 | |
209 | #endif | |
210 | ||
3d855632 | 211 | /* Return the command string from struct core_dumpx C. */ |
59d9f049 ND |
212 | |
213 | #ifdef AIX_CORE_DUMPX_CORE | |
214 | # define CNEW_COMM(c) (c).c_u.U_proc.pi_comm | |
215 | #else | |
216 | # define CNEW_COMM(c) 0 | |
217 | #endif | |
218 | ||
3d855632 | 219 | /* Return the command string from struct core_dump C. */ |
59d9f049 ND |
220 | |
221 | #ifdef CORE_VERSION_1 | |
222 | # define COLD_COMM(c) (c).c_u.U_comm | |
223 | #else | |
224 | # define COLD_COMM(c) (c).c_u.u_comm | |
225 | #endif | |
252b5132 | 226 | |
3d855632 | 227 | /* Return the struct __context64 pointer from struct core_dumpx C. */ |
252b5132 | 228 | |
59d9f049 ND |
229 | #ifdef AIX_CORE_DUMPX_CORE |
230 | # define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64 | |
231 | #else | |
232 | # define CNEW_CONTEXT64(c) c | |
233 | #endif | |
252b5132 | 234 | |
3d855632 | 235 | /* Return the struct mstsave pointer from struct core_dumpx C. */ |
6ad49cca KB |
236 | |
237 | #ifdef AIX_CORE_DUMPX_CORE | |
59d9f049 | 238 | # define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32 |
6ad49cca | 239 | #else |
59d9f049 ND |
240 | # define CNEW_MSTSAVE(c) c |
241 | #endif | |
242 | ||
3d855632 | 243 | /* Return the struct mstsave pointer from struct core_dump C. */ |
59d9f049 | 244 | |
252b5132 | 245 | #ifdef CORE_VERSION_1 |
59d9f049 | 246 | # define COLD_MSTSAVE(c) (c).c_mst |
252b5132 | 247 | #else |
59d9f049 | 248 | # define COLD_MSTSAVE(c) (c).c_u.u_save |
6ad49cca | 249 | #endif |
59d9f049 | 250 | |
3d855632 | 251 | /* Return whether struct core_dumpx is from a 64-bit process. */ |
59d9f049 ND |
252 | |
253 | #ifdef AIX_CORE_DUMPX_CORE | |
254 | # define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc) | |
255 | #else | |
256 | # define CNEW_PROC64(c) 0 | |
257 | #endif | |
258 | ||
259 | /* Magic end-of-stack addresses for old core dumps. This is _very_ fragile, | |
3d855632 | 260 | but I don't see any easy way to get that info right now. */ |
59d9f049 ND |
261 | |
262 | #ifdef CORE_VERSION_1 | |
263 | # define COLD_STACKEND 0x2ff23000 | |
264 | #else | |
265 | # define COLD_STACKEND 0x2ff80000 | |
252b5132 RH |
266 | #endif |
267 | ||
59d9f049 | 268 | /* Size of the leading portion that old and new core dump structures have in |
3d855632 | 269 | common. */ |
d6867a75 SM |
270 | #ifdef AIX_CORE_DUMPX_CORE |
271 | #define CORE_COMMONSZ ((long) &((struct core_dumpx *) 0)->c_entries \ | |
07d6d2b8 | 272 | + sizeof (((struct core_dumpx *) 0)->c_entries)) |
d6867a75 | 273 | #else |
ba1c4c6f AM |
274 | #define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \ |
275 | + sizeof (((struct core_dump *) 0)->c_entries)) | |
d6867a75 | 276 | #endif |
cc429f57 JB |
277 | /* Define prototypes for certain functions, to avoid a compiler warning |
278 | saying that they are missing. */ | |
279 | ||
0b7733b6 | 280 | bfd_cleanup rs6000coff_core_p (bfd *abfd); |
0a1b45a2 | 281 | bool rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd); |
cc429f57 JB |
282 | char * rs6000coff_core_file_failing_command (bfd *abfd); |
283 | int rs6000coff_core_file_failing_signal (bfd *abfd); | |
284 | ||
3d855632 KH |
285 | /* Try to read into CORE the header from the core file associated with ABFD. |
286 | Return success. */ | |
59d9f049 | 287 | |
0a1b45a2 | 288 | static bool |
59d9f049 ND |
289 | read_hdr (bfd *abfd, CoreHdr *core) |
290 | { | |
291 | bfd_size_type size; | |
292 | ||
dc810e39 | 293 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
0a1b45a2 | 294 | return false; |
59d9f049 ND |
295 | |
296 | /* Read the leading portion that old and new core dump structures have in | |
3d855632 | 297 | common. */ |
dc810e39 AM |
298 | size = CORE_COMMONSZ; |
299 | if (bfd_bread (core, size, abfd) != size) | |
0a1b45a2 | 300 | return false; |
59d9f049 | 301 | |
3d855632 | 302 | /* Read the trailing portion of the structure. */ |
dc810e39 | 303 | if (CORE_NEW (*core)) |
342e3c85 | 304 | size = sizeof (core->new_dump); |
d6867a75 | 305 | #ifndef BFD64 |
dc810e39 AM |
306 | else |
307 | size = sizeof (core->old); | |
d6867a75 | 308 | #endif |
dc810e39 AM |
309 | size -= CORE_COMMONSZ; |
310 | return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size; | |
59d9f049 | 311 | } |
252b5132 RH |
312 | |
313 | static asection * | |
cc429f57 JB |
314 | make_bfd_asection (bfd *abfd, const char *name, flagword flags, |
315 | bfd_size_type size, bfd_vma vma, file_ptr filepos) | |
252b5132 RH |
316 | { |
317 | asection *asect; | |
318 | ||
117ed4f8 | 319 | asect = bfd_make_section_anyway_with_flags (abfd, name, flags); |
252b5132 RH |
320 | if (!asect) |
321 | return NULL; | |
322 | ||
eea6121a | 323 | asect->size = size; |
252b5132 RH |
324 | asect->vma = vma; |
325 | asect->filepos = filepos; | |
326 | asect->alignment_power = 8; | |
327 | ||
328 | return asect; | |
329 | } | |
330 | ||
331 | /* Decide if a given bfd represents a `core' file or not. There really is no | |
3d855632 | 332 | magic number or anything like, in rs6000coff. */ |
252b5132 | 333 | |
cb001c0d | 334 | bfd_cleanup |
cc429f57 | 335 | rs6000coff_core_p (bfd *abfd) |
252b5132 | 336 | { |
59d9f049 | 337 | CoreHdr core; |
252b5132 | 338 | struct stat statbuf; |
59d9f049 | 339 | bfd_size_type size; |
252b5132 RH |
340 | char *tmpptr; |
341 | ||
3d855632 | 342 | /* Values from new and old core structures. */ |
59d9f049 ND |
343 | int c_flag; |
344 | file_ptr c_stack, c_regoff, c_loader; | |
345 | bfd_size_type c_size, c_regsize, c_lsize; | |
346 | bfd_vma c_stackend; | |
347 | void *c_regptr; | |
348 | int proc64; | |
252b5132 | 349 | |
59d9f049 | 350 | if (!read_hdr (abfd, &core)) |
252b5132 RH |
351 | { |
352 | if (bfd_get_error () != bfd_error_system_call) | |
353 | bfd_set_error (bfd_error_wrong_format); | |
354 | return NULL; | |
355 | } | |
356 | ||
e0c88096 NC |
357 | /* This isn't the right handler for 64-bit core files on AIX 5.x. */ |
358 | if (CORE_NEW (core) && CNEW_IS_CORE_DUMPXX (core)) | |
359 | { | |
360 | bfd_set_error (bfd_error_wrong_format); | |
361 | return NULL; | |
362 | } | |
363 | ||
3d855632 | 364 | /* Copy fields from new or old core structure. */ |
59d9f049 ND |
365 | if (CORE_NEW (core)) |
366 | { | |
d3ce72d0 NC |
367 | c_flag = core.new_dump.c_flag; |
368 | c_stack = (file_ptr) core.new_dump.c_stack; | |
369 | c_size = core.new_dump.c_size; | |
370 | c_stackend = CNEW_STACKORG (core.new_dump) + c_size; | |
371 | c_lsize = CNEW_LSIZE (core.new_dump); | |
372 | c_loader = CNEW_LOADER (core.new_dump); | |
d6867a75 | 373 | #ifndef BFD64 |
d3ce72d0 | 374 | proc64 = CNEW_PROC64 (core.new_dump); |
59d9f049 ND |
375 | } |
376 | else | |
377 | { | |
378 | c_flag = core.old.c_flag; | |
cc429f57 | 379 | c_stack = (file_ptr) (ptr_to_uint) core.old.c_stack; |
59d9f049 ND |
380 | c_size = core.old.c_size; |
381 | c_stackend = COLD_STACKEND; | |
382 | c_lsize = 0x7ffffff; | |
cc429f57 | 383 | c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); |
d6867a75 | 384 | #endif |
59d9f049 ND |
385 | proc64 = 0; |
386 | } | |
387 | ||
388 | if (proc64) | |
389 | { | |
d3ce72d0 NC |
390 | c_regsize = sizeof (CNEW_CONTEXT64 (core.new_dump)); |
391 | c_regptr = &CNEW_CONTEXT64 (core.new_dump); | |
59d9f049 ND |
392 | } |
393 | else if (CORE_NEW (core)) | |
394 | { | |
d3ce72d0 NC |
395 | c_regsize = sizeof (CNEW_MSTSAVE (core.new_dump)); |
396 | c_regptr = &CNEW_MSTSAVE (core.new_dump); | |
59d9f049 | 397 | } |
d6867a75 | 398 | #ifndef BFD64 |
59d9f049 ND |
399 | else |
400 | { | |
401 | c_regsize = sizeof (COLD_MSTSAVE (core.old)); | |
402 | c_regptr = &COLD_MSTSAVE (core.old); | |
403 | } | |
d6867a75 | 404 | #endif |
6a125b16 | 405 | c_regoff = (char *) c_regptr - (char *) &core; |
59d9f049 | 406 | |
252b5132 RH |
407 | if (bfd_stat (abfd, &statbuf) < 0) |
408 | { | |
409 | bfd_set_error (bfd_error_system_call); | |
410 | return NULL; | |
411 | } | |
412 | ||
413 | /* If the core file ulimit is too small, the system will first | |
414 | omit the data segment, then omit the stack, then decline to | |
415 | dump core altogether (as far as I know UBLOCK_VALID and LE_VALID | |
416 | are always set) (this is based on experimentation on AIX 3.2). | |
417 | Now, the thing is that GDB users will be surprised | |
418 | if segments just silently don't appear (well, maybe they would | |
419 | think to check "info files", I don't know). | |
420 | ||
421 | For the data segment, we have no choice but to keep going if it's | |
422 | not there, since the default behavior is not to dump it (regardless | |
6a125b16 | 423 | of the ulimit, it's based on SA_FULLDUMP). But for the stack segment, |
252b5132 RH |
424 | if it's not there, we refuse to have anything to do with this core |
425 | file. The usefulness of a core dump without a stack segment is pretty | |
426 | limited anyway. */ | |
59d9f049 ND |
427 | |
428 | if (!(c_flag & UBLOCK_VALID) | |
429 | || !(c_flag & LE_VALID)) | |
252b5132 RH |
430 | { |
431 | bfd_set_error (bfd_error_wrong_format); | |
432 | return NULL; | |
433 | } | |
434 | ||
59d9f049 | 435 | if (!(c_flag & USTACK_VALID)) |
252b5132 RH |
436 | { |
437 | bfd_set_error (bfd_error_file_truncated); | |
438 | return NULL; | |
439 | } | |
440 | ||
441 | /* Don't check the core file size for a full core, AIX 4.1 includes | |
6a125b16 | 442 | additional shared library sections in a full core. */ |
59d9f049 | 443 | if (!(c_flag & (FULL_CORE | CORE_TRUNC))) |
252b5132 | 444 | { |
3d855632 | 445 | /* If the size is wrong, it means we're misinterpreting something. */ |
59d9f049 ND |
446 | if (c_stack + (file_ptr) c_size != statbuf.st_size) |
447 | { | |
448 | bfd_set_error (bfd_error_wrong_format); | |
449 | return NULL; | |
450 | } | |
252b5132 RH |
451 | } |
452 | ||
453 | /* Sanity check on the c_tab field. */ | |
d6867a75 SM |
454 | if (!CORE_NEW (core) |
455 | && ( | |
456 | #ifndef BFD64 | |
457 | c_loader < (file_ptr) sizeof core.old | |
458 | #else | |
459 | c_loader < (file_ptr) sizeof core.new_dump | |
460 | #endif | |
461 | || c_loader >= statbuf.st_size | |
462 | || c_loader >= c_stack)) | |
252b5132 RH |
463 | { |
464 | bfd_set_error (bfd_error_wrong_format); | |
465 | return NULL; | |
466 | } | |
467 | ||
468 | /* Issue warning if the core file was truncated during writing. */ | |
59d9f049 | 469 | if (c_flag & CORE_TRUNC) |
871b3ab2 | 470 | _bfd_error_handler (_("%pB: warning core file truncated"), abfd); |
252b5132 | 471 | |
6a125b16 | 472 | /* Allocate core file header. */ |
d6867a75 | 473 | #ifndef BFD64 |
d3ce72d0 | 474 | size = CORE_NEW (core) ? sizeof (core.new_dump) : sizeof (core.old); |
d6867a75 SM |
475 | #else |
476 | size = sizeof (core.new_dump); | |
477 | #endif | |
dc810e39 | 478 | tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size); |
252b5132 RH |
479 | if (!tmpptr) |
480 | return NULL; | |
252b5132 RH |
481 | |
482 | /* Copy core file header. */ | |
59d9f049 ND |
483 | memcpy (tmpptr, &core, size); |
484 | set_tdata (abfd, tmpptr); | |
485 | ||
3d855632 | 486 | /* Set architecture. */ |
59d9f049 ND |
487 | if (CORE_NEW (core)) |
488 | { | |
489 | enum bfd_architecture arch; | |
490 | unsigned long mach; | |
491 | ||
d3ce72d0 | 492 | switch (CNEW_IMPL (core.new_dump)) |
59d9f049 ND |
493 | { |
494 | case POWER_RS1: | |
495 | case POWER_RSC: | |
496 | case POWER_RS2: | |
497 | arch = bfd_arch_rs6000; | |
498 | mach = bfd_mach_rs6k; | |
499 | break; | |
500 | default: | |
501 | arch = bfd_arch_powerpc; | |
502 | mach = bfd_mach_ppc; | |
503 | break; | |
6a125b16 | 504 | } |
59d9f049 ND |
505 | bfd_default_set_arch_mach (abfd, arch, mach); |
506 | } | |
252b5132 | 507 | |
3d855632 | 508 | /* .stack section. */ |
252b5132 | 509 | if (!make_bfd_asection (abfd, ".stack", |
59d9f049 ND |
510 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
511 | c_size, c_stackend - c_size, c_stack)) | |
9e7b37b3 | 512 | goto fail; |
252b5132 | 513 | |
3d855632 | 514 | /* .reg section for all registers. */ |
252b5132 | 515 | if (!make_bfd_asection (abfd, ".reg", |
59d9f049 ND |
516 | SEC_HAS_CONTENTS, |
517 | c_regsize, (bfd_vma) 0, c_regoff)) | |
9e7b37b3 | 518 | goto fail; |
252b5132 RH |
519 | |
520 | /* .ldinfo section. | |
521 | To actually find out how long this section is in this particular | |
522 | core dump would require going down the whole list of struct ld_info's. | |
523 | See if we can just fake it. */ | |
524 | if (!make_bfd_asection (abfd, ".ldinfo", | |
59d9f049 ND |
525 | SEC_HAS_CONTENTS, |
526 | c_lsize, (bfd_vma) 0, c_loader)) | |
9e7b37b3 | 527 | goto fail; |
252b5132 RH |
528 | |
529 | #ifndef CORE_VERSION_1 | |
530 | /* .data section if present. | |
531 | AIX 3 dumps the complete data section and sets FULL_CORE if the | |
532 | ulimit is large enough, otherwise the data section is omitted. | |
533 | AIX 4 sets FULL_CORE even if the core file is truncated, we have | |
59d9f049 | 534 | to examine core.c_datasize below to find out the actual size of |
6a125b16 | 535 | the .data section. */ |
59d9f049 | 536 | if (c_flag & FULL_CORE) |
252b5132 RH |
537 | { |
538 | if (!make_bfd_asection (abfd, ".data", | |
539 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
59d9f049 | 540 | (bfd_size_type) core.old.c_u.u_dsize, |
252b5132 | 541 | (bfd_vma) |
59d9f049 ND |
542 | CDATA_ADDR (core.old.c_u.u_dsize), |
543 | c_stack + c_size)) | |
9e7b37b3 | 544 | goto fail; |
252b5132 RH |
545 | } |
546 | #endif | |
547 | ||
548 | #ifdef CORE_VERSION_1 | |
549 | /* AIX 4 adds data sections from loaded objects to the core file, | |
550 | which can be found by examining ldinfo, and anonymously mmapped | |
551 | regions. */ | |
552 | { | |
59d9f049 ND |
553 | LdInfo ldinfo; |
554 | bfd_size_type ldi_datasize; | |
555 | file_ptr ldi_core; | |
556 | uint ldi_next; | |
557 | bfd_vma ldi_dataorg; | |
d6867a75 | 558 | bfd_vma core_dataorg; |
59d9f049 | 559 | |
3d855632 | 560 | /* Fields from new and old core structures. */ |
59d9f049 ND |
561 | bfd_size_type c_datasize, c_vmregions; |
562 | file_ptr c_data, c_vmm; | |
563 | ||
564 | if (CORE_NEW (core)) | |
565 | { | |
d3ce72d0 NC |
566 | c_datasize = CNEW_DATASIZE (core.new_dump); |
567 | c_data = (file_ptr) core.new_dump.c_data; | |
568 | c_vmregions = core.new_dump.c_vmregions; | |
569 | c_vmm = (file_ptr) core.new_dump.c_vmm; | |
59d9f049 | 570 | } |
d6867a75 | 571 | #ifndef BFD64 |
59d9f049 ND |
572 | else |
573 | { | |
574 | c_datasize = core.old.c_datasize; | |
cc429f57 | 575 | c_data = (file_ptr) (ptr_to_uint) core.old.c_data; |
59d9f049 | 576 | c_vmregions = core.old.c_vmregions; |
cc429f57 | 577 | c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm; |
59d9f049 | 578 | } |
d6867a75 | 579 | #endif |
252b5132 RH |
580 | |
581 | /* .data section from executable. */ | |
59d9f049 | 582 | if (c_datasize) |
252b5132 | 583 | { |
d6867a75 SM |
584 | /* If Large Memory Model is used, then the .data segment should start from |
585 | BDATAORG which has been defined in the system header files. */ | |
586 | ||
07d6d2b8 AM |
587 | if (c_flag & CORE_BIGDATA) |
588 | core_dataorg = BDATAORG; | |
589 | else | |
590 | core_dataorg = CDATA_ADDR (c_datasize); | |
d6867a75 | 591 | |
252b5132 RH |
592 | if (!make_bfd_asection (abfd, ".data", |
593 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
59d9f049 | 594 | c_datasize, |
d6867a75 | 595 | (bfd_vma) core_dataorg, |
59d9f049 | 596 | c_data)) |
9e7b37b3 | 597 | goto fail; |
252b5132 RH |
598 | } |
599 | ||
600 | /* .data sections from loaded objects. */ | |
59d9f049 | 601 | if (proc64) |
d6867a75 | 602 | size = (unsigned long) ((LdInfo *) 0)->l64.ldinfo_filename; |
59d9f049 | 603 | else |
d6867a75 | 604 | size = (unsigned long) ((LdInfo *) 0)->l32.ldinfo_filename; |
59d9f049 | 605 | |
252b5132 RH |
606 | while (1) |
607 | { | |
59d9f049 | 608 | if (bfd_seek (abfd, c_loader, SEEK_SET) != 0) |
9e7b37b3 | 609 | goto fail; |
dc810e39 | 610 | if (bfd_bread (&ldinfo, size, abfd) != size) |
9e7b37b3 | 611 | goto fail; |
59d9f049 ND |
612 | |
613 | if (proc64) | |
252b5132 | 614 | { |
59d9f049 ND |
615 | ldi_core = ldinfo.l64.ldinfo_core; |
616 | ldi_datasize = ldinfo.l64.ldinfo_datasize; | |
617 | ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg; | |
618 | ldi_next = ldinfo.l64.ldinfo_next; | |
619 | } | |
620 | else | |
621 | { | |
622 | ldi_core = ldinfo.l32.ldinfo_core; | |
623 | ldi_datasize = ldinfo.l32.ldinfo_datasize; | |
c38e8559 | 624 | ldi_dataorg = (bfd_vma) (ptr_to_uint) ldinfo.l32.ldinfo_dataorg; |
59d9f049 | 625 | ldi_next = ldinfo.l32.ldinfo_next; |
252b5132 | 626 | } |
59d9f049 ND |
627 | |
628 | if (ldi_core) | |
629 | if (!make_bfd_asection (abfd, ".data", | |
630 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
631 | ldi_datasize, ldi_dataorg, ldi_core)) | |
9e7b37b3 | 632 | goto fail; |
59d9f049 ND |
633 | |
634 | if (ldi_next == 0) | |
252b5132 | 635 | break; |
59d9f049 | 636 | c_loader += ldi_next; |
252b5132 RH |
637 | } |
638 | ||
639 | /* .vmdata sections from anonymously mmapped regions. */ | |
59d9f049 | 640 | if (c_vmregions) |
252b5132 | 641 | { |
59d9f049 | 642 | bfd_size_type i; |
252b5132 | 643 | |
59d9f049 | 644 | if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0) |
9e7b37b3 | 645 | goto fail; |
252b5132 | 646 | |
59d9f049 | 647 | for (i = 0; i < c_vmregions; i++) |
252b5132 | 648 | { |
59d9f049 ND |
649 | VmInfo vminfo; |
650 | bfd_size_type vminfo_size; | |
651 | file_ptr vminfo_offset; | |
652 | bfd_vma vminfo_addr; | |
252b5132 | 653 | |
d6867a75 | 654 | #ifndef BFD64 |
d3ce72d0 | 655 | size = CORE_NEW (core) ? sizeof (vminfo.new_dump) : sizeof (vminfo.old); |
d6867a75 | 656 | #else |
07d6d2b8 | 657 | size = sizeof (vminfo.new_dump); |
d6867a75 | 658 | #endif |
dc810e39 | 659 | if (bfd_bread (&vminfo, size, abfd) != size) |
9e7b37b3 | 660 | goto fail; |
59d9f049 ND |
661 | |
662 | if (CORE_NEW (core)) | |
252b5132 | 663 | { |
d3ce72d0 NC |
664 | vminfo_addr = (bfd_vma) vminfo.new_dump.vminfo_addr; |
665 | vminfo_size = vminfo.new_dump.vminfo_size; | |
666 | vminfo_offset = vminfo.new_dump.vminfo_offset; | |
252b5132 | 667 | } |
d6867a75 | 668 | #ifndef BFD64 |
59d9f049 ND |
669 | else |
670 | { | |
c38e8559 | 671 | vminfo_addr = (bfd_vma) (ptr_to_uint) vminfo.old.vminfo_addr; |
59d9f049 ND |
672 | vminfo_size = vminfo.old.vminfo_size; |
673 | vminfo_offset = vminfo.old.vminfo_offset; | |
674 | } | |
d6867a75 | 675 | #endif |
59d9f049 ND |
676 | |
677 | if (vminfo_offset) | |
678 | if (!make_bfd_asection (abfd, ".vmdata", | |
679 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
680 | vminfo_size, vminfo_addr, | |
681 | vminfo_offset)) | |
9e7b37b3 | 682 | goto fail; |
252b5132 RH |
683 | } |
684 | } | |
685 | } | |
686 | #endif | |
687 | ||
cb001c0d | 688 | return _bfd_no_cleanup; |
9e7b37b3 AM |
689 | |
690 | fail: | |
691 | bfd_release (abfd, abfd->tdata.any); | |
692 | abfd->tdata.any = NULL; | |
693 | bfd_section_list_clear (abfd); | |
694 | return NULL; | |
252b5132 RH |
695 | } |
696 | ||
b34976b6 | 697 | /* Return `TRUE' if given core is from the given executable. */ |
6a125b16 | 698 | |
0a1b45a2 | 699 | bool |
cc429f57 | 700 | rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) |
252b5132 | 701 | { |
59d9f049 | 702 | CoreHdr core; |
252b5132 RH |
703 | bfd_size_type size; |
704 | char *path, *s; | |
705 | size_t alloc; | |
706 | const char *str1, *str2; | |
0a1b45a2 | 707 | bool ret; |
59d9f049 | 708 | file_ptr c_loader; |
252b5132 | 709 | |
59d9f049 | 710 | if (!read_hdr (core_bfd, &core)) |
0a1b45a2 | 711 | return false; |
252b5132 | 712 | |
59d9f049 | 713 | if (CORE_NEW (core)) |
d3ce72d0 | 714 | c_loader = CNEW_LOADER (core.new_dump); |
d6867a75 | 715 | #ifndef BFD64 |
59d9f049 | 716 | else |
cc429f57 | 717 | c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); |
d6867a75 | 718 | #endif |
252b5132 | 719 | |
d3ce72d0 | 720 | if (CORE_NEW (core) && CNEW_PROC64 (core.new_dump)) |
6a125b16 | 721 | size = (int) ((LdInfo *) 0)->l64.ldinfo_filename; |
59d9f049 | 722 | else |
6a125b16 | 723 | size = (int) ((LdInfo *) 0)->l32.ldinfo_filename; |
59d9f049 ND |
724 | |
725 | if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0) | |
0a1b45a2 | 726 | return false; |
252b5132 RH |
727 | |
728 | alloc = 100; | |
dc810e39 | 729 | path = bfd_malloc ((bfd_size_type) alloc); |
252b5132 | 730 | if (path == NULL) |
0a1b45a2 | 731 | return false; |
252b5132 RH |
732 | s = path; |
733 | ||
734 | while (1) | |
735 | { | |
dc810e39 | 736 | if (bfd_bread (s, (bfd_size_type) 1, core_bfd) != 1) |
252b5132 RH |
737 | { |
738 | free (path); | |
0a1b45a2 | 739 | return false; |
252b5132 RH |
740 | } |
741 | if (*s == '\0') | |
742 | break; | |
743 | ++s; | |
744 | if (s == path + alloc) | |
745 | { | |
746 | char *n; | |
747 | ||
748 | alloc *= 2; | |
dc810e39 | 749 | n = bfd_realloc (path, (bfd_size_type) alloc); |
252b5132 RH |
750 | if (n == NULL) |
751 | { | |
752 | free (path); | |
0a1b45a2 | 753 | return false; |
252b5132 RH |
754 | } |
755 | s = n + (path - s); | |
756 | path = n; | |
757 | } | |
758 | } | |
59d9f049 | 759 | |
252b5132 | 760 | str1 = strrchr (path, '/'); |
765cf5f6 | 761 | str2 = strrchr (bfd_get_filename (exec_bfd), '/'); |
252b5132 RH |
762 | |
763 | /* step over character '/' */ | |
764 | str1 = str1 != NULL ? str1 + 1 : path; | |
765cf5f6 | 765 | str2 = str2 != NULL ? str2 + 1 : bfd_get_filename (exec_bfd); |
252b5132 RH |
766 | |
767 | if (strcmp (str1, str2) == 0) | |
0a1b45a2 | 768 | ret = true; |
252b5132 | 769 | else |
0a1b45a2 | 770 | ret = false; |
252b5132 RH |
771 | |
772 | free (path); | |
773 | ||
774 | return ret; | |
775 | } | |
776 | ||
777 | char * | |
cc429f57 | 778 | rs6000coff_core_file_failing_command (bfd *abfd) |
252b5132 | 779 | { |
59d9f049 | 780 | CoreHdr *core = core_hdr (abfd); |
d6867a75 | 781 | #ifndef BFD64 |
59d9f049 | 782 | char *com = CORE_NEW (*core) ? |
d3ce72d0 | 783 | CNEW_COMM (core->new_dump) : COLD_COMM (core->old); |
d6867a75 SM |
784 | #else |
785 | char *com = CNEW_COMM (core->new_dump); | |
786 | #endif | |
59d9f049 | 787 | |
252b5132 RH |
788 | if (*com) |
789 | return com; | |
790 | else | |
791 | return 0; | |
792 | } | |
793 | ||
794 | int | |
cc429f57 | 795 | rs6000coff_core_file_failing_signal (bfd *abfd) |
252b5132 | 796 | { |
59d9f049 | 797 | CoreHdr *core = core_hdr (abfd); |
d6867a75 | 798 | #ifndef BFD64 |
d3ce72d0 | 799 | return CORE_NEW (*core) ? core->new_dump.c_signo : core->old.c_signo; |
d6867a75 SM |
800 | #else |
801 | return core->new_dump.c_signo; | |
802 | #endif | |
252b5132 RH |
803 | } |
804 | ||
805 | #endif /* AIX_CORE */ |