Print this page
12046 Provide /proc/<PID>/fdinfo/
| Split |
Close |
| Expand all |
| Collapse all |
--- old/usr/src/uts/common/exec/elf/elf_notes.c
+++ new/usr/src/uts/common/exec/elf/elf_notes.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License, Version 1.0 only
6 6 * (the "License"). You may not use this file except in compliance
7 7 * with the License.
8 8 *
9 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 10 * or http://www.opensolaris.org/os/licensing.
11 11 * See the License for the specific language governing permissions
12 12 * and limitations under the License.
13 13 *
14 14 * When distributing Covered Code, include this CDDL HEADER in each
15 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 16 * If applicable, add the following below this CDDL HEADER, with the
17 17 * fields enclosed by brackets "[]" replaced with your own identifying
18 18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 19 *
20 20 * CDDL HEADER END
21 21 */
22 22 /*
23 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 24 * Use is subject to license terms.
25 25 */
26 26
27 27 /*
28 28 * Copyright 2012 DEY Storage Systems, Inc. All rights reserved.
29 29 * Copyright 2018 Joyent, Inc.
30 30 */
31 31
32 32 #include <sys/types.h>
33 33 #include <sys/param.h>
34 34 #include <sys/thread.h>
35 35 #include <sys/sysmacros.h>
36 36 #include <sys/signal.h>
37 37 #include <sys/cred.h>
38 38 #include <sys/priv.h>
39 39 #include <sys/user.h>
40 40 #include <sys/file.h>
41 41 #include <sys/errno.h>
42 42 #include <sys/vnode.h>
43 43 #include <sys/mode.h>
44 44 #include <sys/vfs.h>
45 45 #include <sys/mman.h>
46 46 #include <sys/kmem.h>
47 47 #include <sys/proc.h>
48 48 #include <sys/pathname.h>
49 49 #include <sys/cmn_err.h>
50 50 #include <sys/systm.h>
51 51 #include <sys/elf.h>
52 52 #include <sys/vmsystm.h>
53 53 #include <sys/debug.h>
54 54 #include <sys/procfs.h>
55 55 #include <sys/regset.h>
56 56 #include <sys/auxv.h>
57 57 #include <sys/exec.h>
58 58 #include <sys/prsystm.h>
59 59 #include <sys/utsname.h>
60 60 #include <sys/zone.h>
61 61 #include <vm/as.h>
62 62 #include <vm/rm.h>
63 63 #include <sys/modctl.h>
64 64 #include <sys/systeminfo.h>
65 65 #include <sys/machelf.h>
66 66 #include <sys/sunddi.h>
67 67 #include "elf_impl.h"
68 68 #if defined(__i386) || defined(__i386_COMPAT)
69 69 #include <sys/sysi86.h>
70 70 #endif
71 71
72 72 void
73 73 setup_note_header(Phdr *v, proc_t *p)
74 74 {
75 75 int nlwp = p->p_lwpcnt;
76 76 int nzomb = p->p_zombcnt;
77 77 int nfd;
78 78 size_t size;
79 79 prcred_t *pcrp;
80 80 uf_info_t *fip;
81 81 uf_entry_t *ufp;
82 82 int fd;
83 83
84 84 fip = P_FINFO(p);
85 85 nfd = 0;
86 86 mutex_enter(&fip->fi_lock);
87 87 for (fd = 0; fd < fip->fi_nfiles; fd++) {
88 88 UF_ENTER(ufp, fip, fd);
89 89 if ((ufp->uf_file != NULL) && (ufp->uf_file->f_count > 0))
90 90 nfd++;
91 91 UF_EXIT(ufp);
92 92 }
93 93 mutex_exit(&fip->fi_lock);
94 94
95 95 v[0].p_type = PT_NOTE;
96 96 v[0].p_flags = PF_R;
97 97 v[0].p_filesz = (sizeof (Note) * (10 + 3 * nlwp + nzomb + nfd))
98 98 + roundup(sizeof (psinfo_t), sizeof (Word))
99 99 + roundup(sizeof (pstatus_t), sizeof (Word))
100 100 + roundup(prgetprivsize(), sizeof (Word))
|
↓ open down ↓ |
100 lines elided |
↑ open up ↑ |
101 101 + roundup(priv_get_implinfo_size(), sizeof (Word))
102 102 + roundup(strlen(platform) + 1, sizeof (Word))
103 103 + roundup(strlen(p->p_zone->zone_name) + 1, sizeof (Word))
104 104 + roundup(__KERN_NAUXV_IMPL * sizeof (aux_entry_t), sizeof (Word))
105 105 + roundup(sizeof (utsname), sizeof (Word))
106 106 + roundup(sizeof (core_content_t), sizeof (Word))
107 107 + roundup(sizeof (prsecflags_t), sizeof (Word))
108 108 + (nlwp + nzomb) * roundup(sizeof (lwpsinfo_t), sizeof (Word))
109 109 + nlwp * roundup(sizeof (lwpstatus_t), sizeof (Word))
110 110 + nlwp * roundup(sizeof (prlwpname_t), sizeof (Word))
111 - + nfd * roundup(sizeof (prfdinfo_t), sizeof (Word));
111 + + nfd * roundup(sizeof (prfdinfov1_t), sizeof (Word));
112 112
113 113 if (curproc->p_agenttp != NULL) {
114 114 v[0].p_filesz += sizeof (Note) +
115 115 roundup(sizeof (psinfo_t), sizeof (Word));
116 116 }
117 117
118 118 size = sizeof (prcred_t) + sizeof (gid_t) * (ngroups_max - 1);
119 119 pcrp = kmem_alloc(size, KM_SLEEP);
120 120 prgetcred(p, pcrp);
121 121 if (pcrp->pr_ngroups != 0) {
122 122 v[0].p_filesz += sizeof (Note) + roundup(sizeof (prcred_t) +
123 123 sizeof (gid_t) * (pcrp->pr_ngroups - 1), sizeof (Word));
124 124 } else {
125 125 v[0].p_filesz += sizeof (Note) +
126 126 roundup(sizeof (prcred_t), sizeof (Word));
127 127 }
128 128 kmem_free(pcrp, size);
129 129
130 130
131 131 #if defined(__i386) || defined(__i386_COMPAT)
132 132 mutex_enter(&p->p_ldtlock);
133 133 size = prnldt(p) * sizeof (struct ssd);
134 134 mutex_exit(&p->p_ldtlock);
135 135 if (size != 0)
136 136 v[0].p_filesz += sizeof (Note) + roundup(size, sizeof (Word));
137 137 #endif /* __i386 || __i386_COMPAT */
138 138
139 139 if ((size = prhasx(p)? prgetprxregsize(p) : 0) != 0)
140 140 v[0].p_filesz += nlwp * sizeof (Note)
141 141 + nlwp * roundup(size, sizeof (Word));
142 142
143 143 #if defined(__sparc)
144 144 /*
145 145 * Figure out the number and sizes of register windows.
146 146 */
147 147 {
148 148 kthread_t *t = p->p_tlist;
149 149 do {
150 150 if ((size = prnwindows(ttolwp(t))) != 0) {
151 151 size = sizeof (gwindows_t) -
152 152 (SPARC_MAXREGWINDOW - size) *
153 153 sizeof (struct rwindow);
154 154 v[0].p_filesz += sizeof (Note) +
155 155 roundup(size, sizeof (Word));
156 156 }
157 157 } while ((t = t->t_forw) != p->p_tlist);
158 158 }
159 159 /*
160 160 * Space for the Ancillary State Registers.
161 161 */
162 162 if (p->p_model == DATAMODEL_LP64)
163 163 v[0].p_filesz += nlwp * sizeof (Note)
164 164 + nlwp * roundup(sizeof (asrset_t), sizeof (Word));
165 165 #endif /* __sparc */
166 166 }
167 167
168 168 int
169 169 write_elfnotes(proc_t *p, int sig, vnode_t *vp, offset_t offset,
170 170 rlim64_t rlimit, cred_t *credp, core_content_t content)
171 171 {
172 172 union {
173 173 psinfo_t psinfo;
174 174 pstatus_t pstatus;
175 175 lwpsinfo_t lwpsinfo;
176 176 lwpstatus_t lwpstatus;
177 177 #if defined(__sparc)
178 178 gwindows_t gwindows;
179 179 asrset_t asrset;
180 180 #endif /* __sparc */
181 181 char xregs[1];
182 182 aux_entry_t auxv[__KERN_NAUXV_IMPL];
183 183 prcred_t pcred;
184 184 prpriv_t ppriv;
185 185 priv_impl_info_t prinfo;
186 186 struct utsname uts;
187 187 prsecflags_t psecflags;
188 188 } *bigwad;
189 189
190 190 size_t xregsize = prhasx(p)? prgetprxregsize(p) : 0;
191 191 size_t crsize = sizeof (prcred_t) + sizeof (gid_t) * (ngroups_max - 1);
192 192 size_t psize = prgetprivsize();
193 193 size_t bigsize = MAX(psize, MAX(sizeof (*bigwad),
194 194 MAX(xregsize, crsize)));
195 195
196 196 priv_impl_info_t *prii;
197 197
198 198 lwpdir_t *ldp;
199 199 lwpent_t *lep;
200 200 kthread_t *t;
201 201 klwp_t *lwp;
202 202 user_t *up;
203 203 int i;
204 204 int nlwp;
205 205 int nzomb;
206 206 int error;
207 207 uchar_t oldsig;
208 208 uf_info_t *fip;
209 209 int fd;
210 210 vnode_t *vroot;
211 211
212 212 #if defined(__i386) || defined(__i386_COMPAT)
213 213 struct ssd *ssd;
214 214 size_t ssdsize;
215 215 #endif /* __i386 || __i386_COMPAT */
216 216
217 217 bigsize = MAX(bigsize, priv_get_implinfo_size());
218 218
219 219 bigwad = kmem_alloc(bigsize, KM_SLEEP);
220 220
221 221 /*
222 222 * The order of the elfnote entries should be same here
223 223 * and in the gcore(1) command. Synchronization is
224 224 * needed between the kernel and gcore(1).
225 225 */
226 226
227 227 /*
228 228 * Get the psinfo, and set the wait status to indicate that a core was
229 229 * dumped. We have to forge this since p->p_wcode is not set yet.
230 230 */
231 231 mutex_enter(&p->p_lock);
232 232 prgetpsinfo(p, &bigwad->psinfo);
233 233 mutex_exit(&p->p_lock);
234 234 bigwad->psinfo.pr_wstat = wstat(CLD_DUMPED, sig);
235 235
236 236 error = elfnote(vp, &offset, NT_PSINFO, sizeof (bigwad->psinfo),
237 237 (caddr_t)&bigwad->psinfo, rlimit, credp);
238 238 if (error)
239 239 goto done;
240 240
241 241 /*
242 242 * Modify t_whystop and lwp_cursig so it appears that the current LWP
243 243 * is stopped after faulting on the signal that caused the core dump.
244 244 * As a result, prgetstatus() will record that signal, the saved
245 245 * lwp_siginfo, and its signal handler in the core file status. We
246 246 * restore lwp_cursig in case a subsequent signal was received while
247 247 * dumping core.
248 248 */
249 249 mutex_enter(&p->p_lock);
250 250 lwp = ttolwp(curthread);
251 251
252 252 oldsig = lwp->lwp_cursig;
253 253 lwp->lwp_cursig = (uchar_t)sig;
254 254 curthread->t_whystop = PR_FAULTED;
255 255
256 256 prgetstatus(p, &bigwad->pstatus, p->p_zone);
257 257 bigwad->pstatus.pr_lwp.pr_why = 0;
258 258
259 259 curthread->t_whystop = 0;
260 260 lwp->lwp_cursig = oldsig;
261 261 mutex_exit(&p->p_lock);
262 262
263 263 error = elfnote(vp, &offset, NT_PSTATUS, sizeof (bigwad->pstatus),
264 264 (caddr_t)&bigwad->pstatus, rlimit, credp);
265 265 if (error)
266 266 goto done;
267 267
268 268 error = elfnote(vp, &offset, NT_PLATFORM, strlen(platform) + 1,
269 269 platform, rlimit, credp);
270 270 if (error)
271 271 goto done;
272 272
273 273 up = PTOU(p);
274 274 for (i = 0; i < __KERN_NAUXV_IMPL; i++) {
275 275 bigwad->auxv[i].a_type = up->u_auxv[i].a_type;
276 276 bigwad->auxv[i].a_un.a_val = up->u_auxv[i].a_un.a_val;
277 277 }
278 278 error = elfnote(vp, &offset, NT_AUXV, sizeof (bigwad->auxv),
279 279 (caddr_t)bigwad->auxv, rlimit, credp);
280 280 if (error)
281 281 goto done;
282 282
283 283 bcopy(&utsname, &bigwad->uts, sizeof (struct utsname));
284 284 if (!INGLOBALZONE(p)) {
285 285 bcopy(p->p_zone->zone_nodename, &bigwad->uts.nodename,
286 286 _SYS_NMLN);
287 287 }
288 288 error = elfnote(vp, &offset, NT_UTSNAME, sizeof (struct utsname),
289 289 (caddr_t)&bigwad->uts, rlimit, credp);
290 290 if (error)
291 291 goto done;
292 292
293 293 prgetsecflags(p, &bigwad->psecflags);
294 294 error = elfnote(vp, &offset, NT_SECFLAGS, sizeof (prsecflags_t),
295 295 (caddr_t)&bigwad->psecflags, rlimit, credp);
296 296 if (error)
297 297 goto done;
298 298
299 299 prgetcred(p, &bigwad->pcred);
300 300
301 301 if (bigwad->pcred.pr_ngroups != 0) {
302 302 crsize = sizeof (prcred_t) +
303 303 sizeof (gid_t) * (bigwad->pcred.pr_ngroups - 1);
304 304 } else
305 305 crsize = sizeof (prcred_t);
306 306
307 307 error = elfnote(vp, &offset, NT_PRCRED, crsize,
308 308 (caddr_t)&bigwad->pcred, rlimit, credp);
309 309 if (error)
310 310 goto done;
311 311
312 312 error = elfnote(vp, &offset, NT_CONTENT, sizeof (core_content_t),
313 313 (caddr_t)&content, rlimit, credp);
314 314 if (error)
315 315 goto done;
316 316
317 317 prgetpriv(p, &bigwad->ppriv);
318 318
319 319 error = elfnote(vp, &offset, NT_PRPRIV, psize,
320 320 (caddr_t)&bigwad->ppriv, rlimit, credp);
321 321 if (error)
322 322 goto done;
323 323
324 324 prii = priv_hold_implinfo();
325 325 error = elfnote(vp, &offset, NT_PRPRIVINFO, priv_get_implinfo_size(),
326 326 (caddr_t)prii, rlimit, credp);
327 327 priv_release_implinfo();
328 328 if (error)
329 329 goto done;
330 330
331 331 /* zone can't go away as long as process exists */
332 332 error = elfnote(vp, &offset, NT_ZONENAME,
333 333 strlen(p->p_zone->zone_name) + 1, p->p_zone->zone_name,
334 334 rlimit, credp);
335 335 if (error)
336 336 goto done;
337 337
338 338
339 339 /* open file table */
340 340 vroot = PTOU(p)->u_rdir;
341 341 if (vroot == NULL)
342 342 vroot = rootdir;
|
↓ open down ↓ |
221 lines elided |
↑ open up ↑ |
343 343
344 344 VN_HOLD(vroot);
345 345
346 346 fip = P_FINFO(p);
347 347
348 348 for (fd = 0; fd < fip->fi_nfiles; fd++) {
349 349 uf_entry_t *ufp;
350 350 vnode_t *fvp;
351 351 struct file *fp;
352 352 vattr_t vattr;
353 - prfdinfo_t fdinfo;
353 + prfdinfov1_t fdinfo;
354 354
355 355 bzero(&fdinfo, sizeof (fdinfo));
356 356
357 357 mutex_enter(&fip->fi_lock);
358 358 UF_ENTER(ufp, fip, fd);
359 359 if (((fp = ufp->uf_file) == NULL) || (fp->f_count < 1)) {
360 360 UF_EXIT(ufp);
361 361 mutex_exit(&fip->fi_lock);
362 362 continue;
363 363 }
364 364
365 365 fdinfo.pr_fd = fd;
366 366 fdinfo.pr_fdflags = ufp->uf_flag;
367 367 fdinfo.pr_fileflags = fp->f_flag2;
368 368 fdinfo.pr_fileflags <<= 16;
369 369 fdinfo.pr_fileflags |= fp->f_flag;
370 370 if ((fdinfo.pr_fileflags & (FSEARCH | FEXEC)) == 0)
371 371 fdinfo.pr_fileflags += FOPEN;
372 372 fdinfo.pr_offset = fp->f_offset;
373 373
374 374
375 375 fvp = fp->f_vnode;
376 376 VN_HOLD(fvp);
377 377 UF_EXIT(ufp);
378 378 mutex_exit(&fip->fi_lock);
379 379
380 380 /*
381 381 * There are some vnodes that have no corresponding
382 382 * path. Its reasonable for this to fail, in which
383 383 * case the path will remain an empty string.
384 384 */
385 385 (void) vnodetopath(vroot, fvp, fdinfo.pr_path,
386 386 sizeof (fdinfo.pr_path), credp);
387 387
388 388 if (VOP_GETATTR(fvp, &vattr, 0, credp, NULL) != 0) {
389 389 /*
390 390 * Try to write at least a subset of information
391 391 */
392 392 fdinfo.pr_major = 0;
393 393 fdinfo.pr_minor = 0;
394 394 fdinfo.pr_ino = 0;
395 395 fdinfo.pr_mode = 0;
396 396 fdinfo.pr_uid = (uid_t)-1;
397 397 fdinfo.pr_gid = (gid_t)-1;
398 398 fdinfo.pr_rmajor = 0;
399 399 fdinfo.pr_rminor = 0;
400 400 fdinfo.pr_size = -1;
401 401
402 402 error = elfnote(vp, &offset, NT_FDINFO,
403 403 sizeof (fdinfo), &fdinfo, rlimit, credp);
404 404 VN_RELE(fvp);
405 405 if (error) {
406 406 VN_RELE(vroot);
407 407 goto done;
408 408 }
409 409 continue;
410 410 }
411 411
412 412 if (fvp->v_type == VSOCK)
413 413 fdinfo.pr_fileflags |= sock_getfasync(fvp);
414 414
415 415 VN_RELE(fvp);
416 416
417 417 /*
418 418 * This logic mirrors fstat(), which we cannot use
419 419 * directly, as it calls copyout().
420 420 */
421 421 fdinfo.pr_major = getmajor(vattr.va_fsid);
422 422 fdinfo.pr_minor = getminor(vattr.va_fsid);
423 423 fdinfo.pr_ino = (ino64_t)vattr.va_nodeid;
424 424 fdinfo.pr_mode = VTTOIF(vattr.va_type) | vattr.va_mode;
425 425 fdinfo.pr_uid = vattr.va_uid;
426 426 fdinfo.pr_gid = vattr.va_gid;
427 427 fdinfo.pr_rmajor = getmajor(vattr.va_rdev);
428 428 fdinfo.pr_rminor = getminor(vattr.va_rdev);
429 429 fdinfo.pr_size = (off64_t)vattr.va_size;
430 430
431 431 error = elfnote(vp, &offset, NT_FDINFO,
432 432 sizeof (fdinfo), &fdinfo, rlimit, credp);
433 433 if (error) {
434 434 VN_RELE(vroot);
435 435 goto done;
436 436 }
437 437 }
438 438
439 439 VN_RELE(vroot);
440 440
441 441 #if defined(__i386) || defined(__i386_COMPAT)
442 442 mutex_enter(&p->p_ldtlock);
443 443 ssdsize = prnldt(p) * sizeof (struct ssd);
444 444 if (ssdsize != 0) {
445 445 ssd = kmem_alloc(ssdsize, KM_SLEEP);
446 446 prgetldt(p, ssd);
447 447 error = elfnote(vp, &offset, NT_LDT, ssdsize,
448 448 (caddr_t)ssd, rlimit, credp);
449 449 kmem_free(ssd, ssdsize);
450 450 }
451 451 mutex_exit(&p->p_ldtlock);
452 452 if (error)
453 453 goto done;
454 454 #endif /* __i386 || defined(__i386_COMPAT) */
455 455
456 456 nlwp = p->p_lwpcnt;
457 457 nzomb = p->p_zombcnt;
458 458 /* for each entry in the lwp directory ... */
459 459 for (ldp = p->p_lwpdir; nlwp + nzomb != 0; ldp++) {
460 460 prlwpname_t name = { 0, };
461 461
462 462 if ((lep = ldp->ld_entry) == NULL) /* empty slot */
463 463 continue;
464 464
465 465 if ((t = lep->le_thread) != NULL) { /* active lwp */
466 466 ASSERT(nlwp != 0);
467 467 nlwp--;
468 468 lwp = ttolwp(t);
469 469 mutex_enter(&p->p_lock);
470 470 prgetlwpsinfo(t, &bigwad->lwpsinfo);
471 471 if (t->t_name != NULL) {
472 472 (void) strlcpy(name.pr_lwpname, t->t_name,
473 473 sizeof (name.pr_lwpname));
474 474 }
475 475 mutex_exit(&p->p_lock);
476 476 } else { /* zombie lwp */
477 477 ASSERT(nzomb != 0);
478 478 nzomb--;
479 479 bzero(&bigwad->lwpsinfo, sizeof (bigwad->lwpsinfo));
480 480 bigwad->lwpsinfo.pr_lwpid = lep->le_lwpid;
481 481 bigwad->lwpsinfo.pr_state = SZOMB;
482 482 bigwad->lwpsinfo.pr_sname = 'Z';
483 483 bigwad->lwpsinfo.pr_start.tv_sec = lep->le_start;
484 484 }
485 485
486 486 name.pr_lwpid = bigwad->lwpsinfo.pr_lwpid;
487 487
488 488 error = elfnote(vp, &offset, NT_LWPSINFO,
489 489 sizeof (bigwad->lwpsinfo), (caddr_t)&bigwad->lwpsinfo,
490 490 rlimit, credp);
491 491 if (error)
492 492 goto done;
493 493
494 494 if (t == NULL) /* nothing more to do for a zombie */
495 495 continue;
496 496
497 497 mutex_enter(&p->p_lock);
498 498 if (t == curthread) {
499 499 /*
500 500 * Modify t_whystop and lwp_cursig so it appears that
501 501 * the current LWP is stopped after faulting on the
502 502 * signal that caused the core dump. As a result,
503 503 * prgetlwpstatus() will record that signal, the saved
504 504 * lwp_siginfo, and its signal handler in the core file
505 505 * status. We restore lwp_cursig in case a subsequent
506 506 * signal was received while dumping core.
507 507 */
508 508 oldsig = lwp->lwp_cursig;
509 509 lwp->lwp_cursig = (uchar_t)sig;
510 510 t->t_whystop = PR_FAULTED;
511 511
512 512 prgetlwpstatus(t, &bigwad->lwpstatus, p->p_zone);
513 513 bigwad->lwpstatus.pr_why = 0;
514 514
515 515 t->t_whystop = 0;
516 516 lwp->lwp_cursig = oldsig;
517 517 } else {
518 518 prgetlwpstatus(t, &bigwad->lwpstatus, p->p_zone);
519 519 }
520 520 mutex_exit(&p->p_lock);
521 521 error = elfnote(vp, &offset, NT_LWPSTATUS,
522 522 sizeof (bigwad->lwpstatus), (caddr_t)&bigwad->lwpstatus,
523 523 rlimit, credp);
524 524 if (error)
525 525 goto done;
526 526
527 527 if ((error = elfnote(vp, &offset, NT_LWPNAME, sizeof (name),
528 528 (caddr_t)&name, rlimit, credp)) != 0)
529 529 goto done;
530 530
531 531
532 532 #if defined(__sparc)
533 533 /*
534 534 * Unspilled SPARC register windows.
535 535 */
536 536 {
537 537 size_t size = prnwindows(lwp);
538 538
539 539 if (size != 0) {
540 540 size = sizeof (gwindows_t) -
541 541 (SPARC_MAXREGWINDOW - size) *
542 542 sizeof (struct rwindow);
543 543 prgetwindows(lwp, &bigwad->gwindows);
544 544 error = elfnote(vp, &offset, NT_GWINDOWS,
545 545 size, (caddr_t)&bigwad->gwindows,
546 546 rlimit, credp);
547 547 if (error)
548 548 goto done;
549 549 }
550 550 }
551 551 /*
552 552 * Ancillary State Registers.
553 553 */
554 554 if (p->p_model == DATAMODEL_LP64) {
555 555 prgetasregs(lwp, bigwad->asrset);
556 556 error = elfnote(vp, &offset, NT_ASRS,
557 557 sizeof (asrset_t), (caddr_t)bigwad->asrset,
558 558 rlimit, credp);
559 559 if (error)
560 560 goto done;
561 561 }
562 562 #endif /* __sparc */
563 563
564 564 if (xregsize) {
565 565 prgetprxregs(lwp, bigwad->xregs);
566 566 error = elfnote(vp, &offset, NT_PRXREG,
567 567 xregsize, bigwad->xregs, rlimit, credp);
568 568 if (error)
569 569 goto done;
570 570 }
571 571
572 572 if (t->t_lwp->lwp_spymaster != NULL) {
573 573 void *psaddr = t->t_lwp->lwp_spymaster;
574 574 #ifdef _ELF32_COMPAT
575 575 /*
576 576 * On a 64-bit kernel with 32-bit ELF compatibility,
577 577 * this file is compiled into two different objects:
578 578 * one is compiled normally, and the other is compiled
579 579 * with _ELF32_COMPAT set -- and therefore with a
580 580 * psinfo_t defined to be a psinfo32_t. However, the
581 581 * psinfo_t denoting our spymaster is always of the
582 582 * native type; if we are in the _ELF32_COMPAT case,
583 583 * we need to explicitly convert it.
584 584 */
585 585 if (p->p_model == DATAMODEL_ILP32) {
586 586 psinfo_kto32(psaddr, &bigwad->psinfo);
587 587 psaddr = &bigwad->psinfo;
588 588 }
589 589 #endif
590 590
591 591 error = elfnote(vp, &offset, NT_SPYMASTER,
592 592 sizeof (psinfo_t), psaddr, rlimit, credp);
593 593 if (error)
594 594 goto done;
595 595 }
596 596 }
597 597 ASSERT(nlwp == 0);
598 598
599 599 done:
600 600 kmem_free(bigwad, bigsize);
601 601 return (error);
602 602 }
|
↓ open down ↓ |
239 lines elided |
↑ open up ↑ |
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX