1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved.
24 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
25 * Copyright 2016, Joyent, Inc.
26 */
27
28 #include <sys/errno.h>
29 #include <sys/exec.h>
30 #include <sys/file.h>
31 #include <sys/kmem.h>
32 #include <sys/modctl.h>
33 #include <sys/model.h>
34 #include <sys/proc.h>
35 #include <sys/syscall.h>
36 #include <sys/systm.h>
37 #include <sys/thread.h>
38 #include <sys/cmn_err.h>
39 #include <sys/archsystm.h>
40 #include <sys/pathname.h>
41 #include <sys/sunddi.h>
42
43 #include <sys/machbrand.h>
44 #include <sys/brand.h>
45 #include "s10_brand.h"
46
47 char *s10_emulation_table = NULL;
48
49 void s10_init_brand_data(zone_t *, kmutex_t *);
50 void s10_free_brand_data(zone_t *);
51 void s10_setbrand(proc_t *);
52 int s10_getattr(zone_t *, int, void *, size_t *);
53 int s10_setattr(zone_t *, int, void *, size_t);
54 int s10_brandsys(int, int64_t *, uintptr_t, uintptr_t, uintptr_t,
55 uintptr_t);
56 void s10_copy_procdata(proc_t *, proc_t *);
57 void s10_proc_exit(struct proc *);
58 void s10_exec();
59 void s10_initlwp(klwp_t *, void *);
60 void s10_forklwp(klwp_t *, klwp_t *);
61 void s10_freelwp(klwp_t *);
62 void s10_lwpexit(klwp_t *);
63 int s10_elfexec(vnode_t *, execa_t *, uarg_t *, intpdata_t *, int,
64 long *, int, caddr_t, cred_t *, int *);
65 void s10_sigset_native_to_s10(sigset_t *);
66 void s10_sigset_s10_to_native(sigset_t *);
67
68 /* s10 brand */
69 struct brand_ops s10_brops = {
70 s10_init_brand_data, /* b_init_brand_data */
71 s10_free_brand_data, /* b_free_brand_data */
72 s10_brandsys, /* b_brandsys */
73 s10_setbrand, /* b_setbrand */
74 s10_getattr, /* b_getattr */
75 s10_setattr, /* b_setattr */
76 s10_copy_procdata, /* b_copy_procdata */
77 s10_proc_exit, /* b_proc_exit */
78 s10_exec, /* b_exec */
79 lwp_setrval, /* b_lwp_setrval */
80 NULL, /* b_lwpdata_alloc */
81 NULL, /* b_lwpdata_free */
82 s10_initlwp, /* b_initlwp */
83 NULL, /* b_initlwp_post */
84 s10_forklwp, /* b_forklwp */
85 s10_freelwp, /* b_freelwp */
86 s10_lwpexit, /* b_lwpexit */
87 s10_elfexec, /* b_elfexec */
88 s10_sigset_native_to_s10, /* b_sigset_native_to_brand */
89 s10_sigset_s10_to_native, /* b_sigset_brand_to_native */
90 NULL, /* b_sigfd_translate */
91 S10_NSIG, /* b_nsig */
92 NULL, /* b_exit_with_sig */
93 NULL, /* b_wait_filter */
94 NULL, /* b_native_exec */
95 NULL, /* b_map32limit */
96 NULL, /* b_stop_notify */
97 NULL, /* b_waitid_helper */
98 NULL, /* b_sigcld_repost */
99 NULL, /* b_issig_stop */
100 NULL, /* b_sig_ignorable */
101 NULL, /* b_savecontext */
102 #if defined(_SYSCALL32_IMPL)
103 NULL, /* b_savecontext32 */
104 #endif
105 NULL, /* b_restorecontext */
106 NULL, /* b_sendsig_stack */
107 NULL, /* b_sendsig */
108 NULL, /* b_setid_clear */
109 NULL, /* b_pagefault */
110 B_TRUE /* b_intp_parse_arg */
111 };
112
113 #ifdef sparc
114
115 struct brand_mach_ops s10_mops = {
116 s10_brand_syscall_callback,
117 s10_brand_syscall32_callback
118 };
119
120 #else /* sparc */
121
122 #ifdef __amd64
123
124 struct brand_mach_ops s10_mops = {
125 s10_brand_sysenter_callback,
126 NULL,
127 s10_brand_int91_callback,
128 s10_brand_syscall_callback,
129 s10_brand_syscall32_callback,
130 NULL,
131 NULL
132 };
133
134 #else /* ! __amd64 */
135
136 struct brand_mach_ops s10_mops = {
137 s10_brand_sysenter_callback,
138 NULL,
139 NULL,
140 s10_brand_syscall_callback,
141 NULL,
142 NULL,
143 NULL
144 };
145 #endif /* __amd64 */
146
147 #endif /* _sparc */
148
149 struct brand s10_brand = {
150 BRAND_VER_1,
151 "solaris10",
152 &s10_brops,
153 &s10_mops,
154 sizeof (brand_proc_data_t),
155 };
156
157 static struct modlbrand modlbrand = {
158 &mod_brandops, /* type of module */
159 "Solaris 10 Brand", /* description of module */
160 &s10_brand /* driver ops */
161 };
162
163 static struct modlinkage modlinkage = {
164 MODREV_1, (void *)&modlbrand, NULL
165 };
166
167 void
168 s10_setbrand(proc_t *p)
169 {
170 brand_solaris_setbrand(p, &s10_brand);
171 }
172
173 /*ARGSUSED*/
174 int
175 s10_getattr(zone_t *zone, int attr, void *buf, size_t *bufsize)
176 {
177 ASSERT(zone->zone_brand == &s10_brand);
178 if (attr == S10_EMUL_BITMAP) {
179 if (buf == NULL || *bufsize != sizeof (s10_emul_bitmap_t))
180 return (EINVAL);
181 if (copyout(((s10_zone_data_t *)zone->zone_brand_data)->
182 emul_bitmap, buf, sizeof (s10_emul_bitmap_t)) != 0)
183 return (EFAULT);
184 return (0);
185 }
186
187 return (EINVAL);
188 }
189
190 int
191 s10_setattr(zone_t *zone, int attr, void *buf, size_t bufsize)
192 {
193 ASSERT(zone->zone_brand == &s10_brand);
194 if (attr == S10_EMUL_BITMAP) {
195 if (buf == NULL || bufsize != sizeof (s10_emul_bitmap_t))
196 return (EINVAL);
197 if (copyin(buf, ((s10_zone_data_t *)zone->zone_brand_data)->
198 emul_bitmap, sizeof (s10_emul_bitmap_t)) != 0)
199 return (EFAULT);
200 return (0);
201 }
202
203 return (EINVAL);
204 }
205
206 #ifdef __amd64
207 /*
208 * The Nevada kernel clears %fs for threads in 64-bit x86 processes but S10's
209 * libc expects %fs to be nonzero. This causes some committed
210 * libc/libthread interfaces (e.g., thr_main()) to fail, which impacts several
211 * libraries, including libdoor. This function sets the specified LWP's %fs
212 * register to the legacy S10 selector value (LWPFS_SEL).
213 *
214 * The best solution to the aforementioned problem is backporting CRs
215 * 6467491 to Solaris 10 so that 64-bit x86 Solaris 10 processes
216 * would accept zero for %fs. Backporting the CRs is a requirement for running
217 * S10 Containers in PV domUs because 64-bit Xen clears %fsbase when %fs is
218 * nonzero. Such behavior breaks 64-bit processes because Xen has to fetch the
219 * FS segments' base addresses from the LWPs' GDTs, which are only capable of
220 * 32-bit addressing.
221 */
222 /*ARGSUSED*/
223 static void
224 s10_amd64_correct_fsreg(klwp_t *l)
225 {
226 if (lwp_getdatamodel(l) == DATAMODEL_NATIVE) {
227 kpreempt_disable();
228 l->lwp_pcb.pcb_fs = LWPFS_SEL;
229 l->lwp_pcb.pcb_rupdate = 1;
230 lwptot(l)->t_post_sys = 1; /* Guarantee update_sregs() */
231 kpreempt_enable();
232 }
233 }
234 #endif /* __amd64 */
235
236 /*
237 * Native processes are started with the native ld.so.1 as the command. This
238 * brand op is invoked by s10_npreload to fix up the command and arguments
239 * so that apps like pgrep or ps see the expected command strings.
240 */
241 int
242 s10_native(void *cmd, void *args)
243 {
244 struct user *up = PTOU(curproc);
245 char cmd_buf[MAXCOMLEN + 1];
246 char arg_buf[PSARGSZ];
247
248 if (copyin(cmd, &cmd_buf, sizeof (cmd_buf)) != 0)
249 return (EFAULT);
250 if (copyin(args, &arg_buf, sizeof (arg_buf)) != 0)
251 return (EFAULT);
252
253 /*
254 * Make sure that the process' interpreter is the native dynamic linker.
255 * Convention dictates that native processes executing within solaris10-
256 * branded zones are interpreted by the native dynamic linker (the
257 * process and its arguments are specified as arguments to the dynamic
258 * linker). If this convention is violated (i.e.,
259 * brandsys(B_S10_NATIVE, ...) is invoked by a process that shouldn't be
260 * native), then do nothing and silently indicate success.
261 */
262 if (strcmp(up->u_comm, S10_LINKER_NAME) != 0)
263 return (0);
264
265 /*
266 * The sizeof has an extra value for the trailing '\0' so this covers
267 * the appended " " in the following strcmps.
268 */
269 if (strncmp(up->u_psargs, BRAND_NATIVE_LINKER64 " ",
270 sizeof (BRAND_NATIVE_LINKER64)) != 0 &&
271 strncmp(up->u_psargs, BRAND_NATIVE_LINKER32 " ",
272 sizeof (BRAND_NATIVE_LINKER32)) != 0)
273 return (0);
274
275 mutex_enter(&curproc->p_lock);
276 (void) strlcpy(up->u_comm, cmd_buf, sizeof (up->u_comm));
277 (void) strlcpy(up->u_psargs, arg_buf, sizeof (up->u_psargs));
278 mutex_exit(&curproc->p_lock);
279
280 return (0);
281 }
282
283 /* ARGSUSED5 */
284 int
285 s10_brandsys(int cmd, int64_t *rval, uintptr_t arg1, uintptr_t arg2,
286 uintptr_t arg3, uintptr_t arg4)
287 {
288 proc_t *p = curproc;
289 int res;
290
291 *rval = 0;
292
293 if (cmd == B_S10_NATIVE)
294 return (s10_native((void *)arg1, (void *)arg2));
295
296 res = brand_solaris_cmd(cmd, arg1, arg2, arg3, &s10_brand, S10_VERSION);
297 if (res >= 0)
298 return (res);
299
300 switch ((cmd)) {
301 case B_S10_PIDINFO:
302 /*
303 * The s10 brand needs to be able to get the pid of the
304 * current process and the pid of the zone's init, and it
305 * needs to do this on every process startup. Early in
306 * brand startup, we can't call getpid() because calls to
307 * getpid() represent a magical signal to some old-skool
308 * debuggers. By merging all of this into one call, we
309 * make this quite a bit cheaper and easier to handle in
310 * the brand module.
311 */
312 if (copyout(&p->p_pid, (void *)arg1, sizeof (pid_t)) != 0)
313 return (EFAULT);
314 if (copyout(&p->p_zone->zone_proc_initpid, (void *)arg2,
315 sizeof (pid_t)) != 0)
316 return (EFAULT);
317 return (0);
318
319 case B_S10_ISFDXATTRDIR: {
320 /*
321 * This subcommand enables the userland brand emulation library
322 * to determine whether a file descriptor refers to an extended
323 * file attributes directory. There is no standard syscall or
324 * libc function that can make such a determination.
325 */
326 file_t *dir_filep;
327
328 dir_filep = getf((int)arg1);
329 if (dir_filep == NULL)
330 return (EBADF);
331 ASSERT(dir_filep->f_vnode != NULL);
332 *rval = IS_XATTRDIR(dir_filep->f_vnode);
333 releasef((int)arg1);
334 return (0);
335 }
336
337 #ifdef __amd64
338 case B_S10_FSREGCORRECTION:
339 /*
340 * This subcommand exists so that the SYS_lwp_private and
341 * SYS_lwp_create syscalls can manually set the current thread's
342 * %fs register to the legacy S10 selector value for 64-bit x86
343 * processes.
344 */
345 s10_amd64_correct_fsreg(ttolwp(curthread));
346 return (0);
347 #endif /* __amd64 */
348 }
349
350 return (EINVAL);
351 }
352
353 void
354 s10_copy_procdata(proc_t *child, proc_t *parent)
355 {
356 brand_solaris_copy_procdata(child, parent, &s10_brand);
357 }
358
359 void
360 s10_proc_exit(struct proc *p)
361 {
362 brand_solaris_proc_exit(p, &s10_brand);
363 }
364
365 void
366 s10_exec()
367 {
368 brand_solaris_exec(&s10_brand);
369 }
370
371 void
372 s10_initlwp(klwp_t *l, void *bd)
373 {
374 brand_solaris_initlwp(l, &s10_brand);
375 }
376
377 void
378 s10_forklwp(klwp_t *p, klwp_t *c)
379 {
380 brand_solaris_forklwp(p, c, &s10_brand);
381
382 #ifdef __amd64
383 /*
384 * Only correct the child's %fs register if the parent's %fs register
385 * is LWPFS_SEL. If the parent's %fs register is zero, then the Solaris
386 * 10 environment that we're emulating uses a version of libc that
387 * works when %fs is zero (i.e., it contains backports of CRs 6467491
388 * and 6501650).
389 */
390 if (p->lwp_pcb.pcb_fs == LWPFS_SEL)
391 s10_amd64_correct_fsreg(c);
392 #endif /* __amd64 */
393 }
394
395 void
396 s10_freelwp(klwp_t *l)
397 {
398 brand_solaris_freelwp(l, &s10_brand);
399 }
400
401 void
402 s10_lwpexit(klwp_t *l)
403 {
404 brand_solaris_lwpexit(l, &s10_brand);
405 }
406
407 void
408 s10_free_brand_data(zone_t *zone)
409 {
410 kmem_free(zone->zone_brand_data, sizeof (s10_zone_data_t));
411 }
412
413 void
414 s10_init_brand_data(zone_t *zone, kmutex_t *zsl)
415 {
416 ASSERT(zone->zone_brand == &s10_brand);
417 ASSERT(zone->zone_brand_data == NULL);
418 zone->zone_brand_data = kmem_zalloc(sizeof (s10_zone_data_t), KM_SLEEP);
419 }
420
421 int
422 s10_elfexec(vnode_t *vp, execa_t *uap, uarg_t *args, intpdata_t *idatap,
423 int level, long *execsz, int setid, caddr_t exec_file, cred_t *cred,
424 int *brand_action)
425 {
426 return (brand_solaris_elfexec(vp, uap, args, idatap, level, execsz,
427 setid, exec_file, cred, brand_action, &s10_brand, S10_BRANDNAME,
428 S10_LIB, S10_LIB32));
429 }
430
431 void
432 s10_sigset_native_to_s10(sigset_t *set)
433 {
434 int nativesig;
435 int s10sig;
436 sigset_t s10set;
437
438 /*
439 * Shortcut: we know the first 32 signals are the same in both
440 * s10 and native Solaris. Just assign the first word.
441 */
442 s10set.__sigbits[0] = set->__sigbits[0];
443 s10set.__sigbits[1] = 0;
444 s10set.__sigbits[2] = 0;
445 s10set.__sigbits[3] = 0;
446
447 /*
448 * Copy the remainder of the initial set of common signals.
449 */
450 for (nativesig = 33; nativesig < S10_SIGRTMIN; nativesig++)
451 if (sigismember(set, nativesig))
452 sigaddset(&s10set, nativesig);
453
454 /*
455 * Convert any native RT signals to their S10 values.
456 */
457 for (nativesig = _SIGRTMIN, s10sig = S10_SIGRTMIN;
458 nativesig <= _SIGRTMAX && s10sig <= S10_SIGRTMAX;
459 nativesig++, s10sig++) {
460 if (sigismember(set, nativesig))
461 sigaddset(&s10set, s10sig);
462 }
463
464 *set = s10set;
465 }
466
467 void
468 s10_sigset_s10_to_native(sigset_t *set)
469 {
470 int s10sig;
471 int nativesig;
472 sigset_t nativeset;
473
474 /*
475 * Shortcut: we know the first 32 signals are the same in both
476 * s10 and native Solaris. Just assign the first word.
477 */
478 nativeset.__sigbits[0] = set->__sigbits[0];
479 nativeset.__sigbits[1] = 0;
480 nativeset.__sigbits[2] = 0;
481 nativeset.__sigbits[3] = 0;
482
483 /*
484 * Copy the remainder of the initial set of common signals.
485 */
486 for (s10sig = 33; s10sig < S10_SIGRTMIN; s10sig++)
487 if (sigismember(set, s10sig))
488 sigaddset(&nativeset, s10sig);
489
490 /*
491 * Convert any S10 RT signals to their native values.
492 */
493 for (s10sig = S10_SIGRTMIN, nativesig = _SIGRTMIN;
494 s10sig <= S10_SIGRTMAX && nativesig <= _SIGRTMAX;
495 s10sig++, nativesig++) {
496 if (sigismember(set, s10sig))
497 sigaddset(&nativeset, nativesig);
498 }
499
500 *set = nativeset;
501 }
502
503 int
504 _init(void)
505 {
506 int err;
507
508 /*
509 * Set up the table indicating which system calls we want to
510 * interpose on. We should probably build this automatically from
511 * a list of system calls that is shared with the user-space
512 * library.
513 */
514 s10_emulation_table = kmem_zalloc(NSYSCALL, KM_SLEEP);
515 s10_emulation_table[S10_SYS_forkall] = 1; /* 2 */
516 s10_emulation_table[S10_SYS_open] = 1; /* 5 */
517 s10_emulation_table[S10_SYS_wait] = 1; /* 7 */
518 s10_emulation_table[S10_SYS_creat] = 1; /* 8 */
519 s10_emulation_table[S10_SYS_link] = 1; /* 9 */
520 s10_emulation_table[S10_SYS_unlink] = 1; /* 10 */
521 s10_emulation_table[S10_SYS_exec] = 1; /* 11 */
522 s10_emulation_table[S10_SYS_mknod] = 1; /* 14 */
523 s10_emulation_table[S10_SYS_chmod] = 1; /* 15 */
524 s10_emulation_table[S10_SYS_chown] = 1; /* 16 */
525 s10_emulation_table[S10_SYS_stat] = 1; /* 18 */
526 s10_emulation_table[S10_SYS_umount] = 1; /* 22 */
527 s10_emulation_table[S10_SYS_fstat] = 1; /* 28 */
528 s10_emulation_table[S10_SYS_utime] = 1; /* 30 */
529 s10_emulation_table[S10_SYS_access] = 1; /* 33 */
530 s10_emulation_table[SYS_kill] = 1; /* 37 */
531 s10_emulation_table[S10_SYS_dup] = 1; /* 41 */
532 s10_emulation_table[S10_SYS_pipe] = 1; /* 42 */
533 s10_emulation_table[SYS_ioctl] = 1; /* 54 */
534 s10_emulation_table[SYS_execve] = 1; /* 59 */
535 s10_emulation_table[SYS_acctctl] = 1; /* 71 */
536 s10_emulation_table[S10_SYS_issetugid] = 1; /* 75 */
537 s10_emulation_table[S10_SYS_fsat] = 1; /* 76 */
538 s10_emulation_table[S10_SYS_rmdir] = 1; /* 79 */
539 s10_emulation_table[S10_SYS_mkdir] = 1; /* 80 */
540 s10_emulation_table[SYS_getdents] = 1; /* 81 */
541 s10_emulation_table[S10_SYS_poll] = 1; /* 87 */
542 s10_emulation_table[S10_SYS_lstat] = 1; /* 88 */
543 s10_emulation_table[S10_SYS_symlink] = 1; /* 89 */
544 s10_emulation_table[S10_SYS_readlink] = 1; /* 90 */
545 s10_emulation_table[S10_SYS_fchmod] = 1; /* 93 */
546 s10_emulation_table[S10_SYS_fchown] = 1; /* 94 */
547 s10_emulation_table[SYS_sigprocmask] = 1; /* 95 */
548 s10_emulation_table[SYS_sigsuspend] = 1; /* 96 */
549 s10_emulation_table[SYS_sigaction] = 1; /* 98 */
550 s10_emulation_table[SYS_sigpending] = 1; /* 99 */
551 s10_emulation_table[SYS_waitid] = 1; /* 107 */
552 s10_emulation_table[SYS_sigsendsys] = 1; /* 108 */
553 #if defined(__x86)
554 s10_emulation_table[S10_SYS_xstat] = 1; /* 123 */
555 s10_emulation_table[S10_SYS_lxstat] = 1; /* 124 */
556 s10_emulation_table[S10_SYS_fxstat] = 1; /* 125 */
557 s10_emulation_table[S10_SYS_xmknod] = 1; /* 126 */
558 #endif
559 s10_emulation_table[S10_SYS_lchown] = 1; /* 130 */
560 s10_emulation_table[S10_SYS_rename] = 1; /* 134 */
561 s10_emulation_table[SYS_uname] = 1; /* 135 */
562 s10_emulation_table[SYS_sysconfig] = 1; /* 137 */
563 s10_emulation_table[SYS_systeminfo] = 1; /* 139 */
564 s10_emulation_table[S10_SYS_fork1] = 1; /* 143 */
565 s10_emulation_table[SYS_sigtimedwait] = 1; /* 144 */
566 s10_emulation_table[S10_SYS_lwp_sema_wait] = 1; /* 147 */
567 s10_emulation_table[S10_SYS_utimes] = 1; /* 154 */
568 s10_emulation_table[SYS_lwp_create] = 1; /* 159 */
569 s10_emulation_table[SYS_lwp_kill] = 1; /* 163 */
570 s10_emulation_table[SYS_lwp_sigmask] = 1; /* 165 */
571 #if defined(__amd64)
572 s10_emulation_table[SYS_lwp_private] = 1; /* 166 */
573 #endif /* __amd64 */
574 s10_emulation_table[S10_SYS_lwp_mutex_lock] = 1; /* 169 */
575 s10_emulation_table[SYS_pwrite] = 1; /* 174 */
576 s10_emulation_table[SYS_acl] = 1; /* 185 */
577 s10_emulation_table[SYS_auditsys] = 1; /* 186 */
578 s10_emulation_table[SYS_sigqueue] = 1; /* 190 */
579 s10_emulation_table[SYS_facl] = 1; /* 200 */
580 s10_emulation_table[SYS_signotify] = 1; /* 205 */
581 s10_emulation_table[SYS_lwp_mutex_timedlock] = 1; /* 210 */
582 s10_emulation_table[SYS_getdents64] = 1; /* 213 */
583 s10_emulation_table[S10_SYS_stat64] = 1; /* 215 */
584 s10_emulation_table[S10_SYS_lstat64] = 1; /* 216 */
585 s10_emulation_table[S10_SYS_fstat64] = 1; /* 217 */
586 s10_emulation_table[SYS_pwrite64] = 1; /* 223 */
587 s10_emulation_table[S10_SYS_creat64] = 1; /* 224 */
588 s10_emulation_table[S10_SYS_open64] = 1; /* 225 */
589 s10_emulation_table[SYS_zone] = 1; /* 227 */
590 s10_emulation_table[S10_SYS_so_socket] = 1; /* 230 */
591 s10_emulation_table[S10_SYS_accept] = 1; /* 234 */
592 s10_emulation_table[SYS_lwp_mutex_trylock] = 1; /* 251 */
593
594 err = mod_install(&modlinkage);
595 if (err) {
596 cmn_err(CE_WARN, "Couldn't install brand module");
597 kmem_free(s10_emulation_table, NSYSCALL);
598 }
599
600 return (err);
601 }
602
603 int
604 _info(struct modinfo *modinfop)
605 {
606 return (mod_info(&modlinkage, modinfop));
607 }
608
609 int
610 _fini(void)
611 {
612 return (brand_solaris_fini(&s10_emulation_table, &modlinkage,
613 &s10_brand));
614 }