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) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28
29 #ifndef _SYS_PROC_H
30 #define _SYS_PROC_H
31
32 #include <sys/time.h>
33 #include <sys/thread.h>
34 #include <sys/cred.h>
35 #include <sys/user.h>
36 #include <sys/watchpoint.h>
37 #include <sys/timer.h>
38 #if defined(__x86)
39 #include <sys/tss.h>
40 #include <sys/segments.h>
41 #endif
42 #include <sys/utrap.h>
43 #include <sys/model.h>
44 #include <sys/refstr.h>
45 #include <sys/avl.h>
46 #include <sys/rctl.h>
47 #include <sys/list.h>
48 #include <sys/avl.h>
49 #include <sys/door_impl.h>
50 #include <sys/signalfd.h>
51
52 #ifdef __cplusplus
53 extern "C" {
54 #endif
55
56 /*
57 * Profile arguments.
58 */
59 struct prof {
60 void *pr_base; /* buffer base */
61 uintptr_t pr_off; /* pc offset */
62 size_t pr_size; /* buffer size */
63 uint32_t pr_scale; /* pc scaling */
64 long pr_samples; /* sample count */
65 };
66
67 /*
68 * An lwp directory entry.
69 * If le_thread != NULL, this is an active lwp.
70 * If le_thread == NULL, this is an unreaped zombie lwp.
71 */
72 typedef struct lwpent {
73 kthread_t *le_thread; /* the active lwp, NULL if zombie */
74 id_t le_lwpid; /* its lwpid (t->t_tid) */
75 uint16_t le_waiters; /* total number of lwp_wait()ers */
76 uint16_t le_dwaiters; /* number that are daemons */
77 clock_t le_start; /* start time of this lwp */
78 struct vnode *le_trace; /* pointer to /proc lwp vnode */
79 } lwpent_t;
80
81 typedef struct pctxop {
82 void (*save_op)(void *); /* function to invoke to save ctx */
83 void (*restore_op)(void *); /* function to invoke to restore ctx */
84 void (*fork_op)(void *, void *); /* invoke to fork context */
85 void (*exit_op)(void *); /* invoked during process exit */
86 void (*free_op)(void *, int); /* function which frees the context */
87 void *arg; /* argument to above functions */
88 struct pctxop *next; /* next pcontext ops */
89 } pctxop_t;
90
91 /*
92 * Elements of the lwp directory, p->p_lwpdir[].
93 *
94 * We allocate lwp directory entries separately from lwp directory
95 * elements because the lwp directory must be allocated as an array.
96 * The number of lwps can grow quite large and we want to keep the
97 * size of the kmem_alloc()d directory as small as possible.
98 *
99 * If ld_entry == NULL, the entry is free and is on the free list,
100 * p->p_lwpfree, linked through ld_next. If ld_entry != NULL, the
101 * entry is used and ld_next is the thread-id hash link pointer.
102 */
103 typedef struct lwpdir {
104 struct lwpdir *ld_next; /* hash chain or free list */
105 struct lwpent *ld_entry; /* lwp directory entry */
106 } lwpdir_t;
107
108 /*
109 * Element of the p_tidhash thread-id (lwpid) hash table.
110 */
111 typedef struct tidhash {
112 kmutex_t th_lock;
113 lwpdir_t *th_list;
114 } tidhash_t;
115
116 /*
117 * Retired tidhash hash tables.
118 */
119 typedef struct ret_tidhash {
120 struct ret_tidhash *rth_next;
121 tidhash_t *rth_tidhash;
122 uint_t rth_tidhash_sz;
123 } ret_tidhash_t;
124
125 struct pool;
126 struct task;
127 struct zone;
128 struct brand;
129 struct corectl_path;
130 struct corectl_content;
131
132 /*
133 * One structure allocated per active process. Per-process data (user.h) is
134 * also inside the proc structure.
135 */
136 typedef struct proc {
137 /*
138 * Fields requiring no explicit locking
139 */
140 struct vnode *p_exec; /* pointer to a.out vnode */
141 struct as *p_as; /* process address space pointer */
142 struct plock *p_lockp; /* ptr to proc struct's mutex lock */
143 kmutex_t p_crlock; /* lock for p_cred */
144 struct cred *p_cred; /* process credentials */
145 /*
146 * Fields protected by pidlock
147 */
148 char p_stat; /* status of process */
149 char p_wcode; /* current wait code */
150 ushort_t p_pidflag; /* flags protected only by pidlock */
151 int p_wdata; /* current wait return value */
152 pid_t p_ppid; /* process id of parent */
153 struct proc *p_link; /* forward link */
154 struct proc *p_parent; /* ptr to parent process */
155 struct proc *p_child; /* ptr to first child process */
156 struct proc *p_sibling; /* ptr to next sibling proc on chain */
157 struct proc *p_psibling; /* ptr to prev sibling proc on chain */
158 struct proc *p_sibling_ns; /* prt to siblings with new state */
159 struct proc *p_child_ns; /* prt to children with new state */
160 struct proc *p_next; /* active chain link next */
161 struct proc *p_prev; /* active chain link prev */
162 struct proc *p_nextofkin; /* gets accounting info at exit */
163 struct proc *p_orphan;
164 struct proc *p_nextorph;
165 struct proc *p_pglink; /* process group hash chain link next */
166 struct proc *p_ppglink; /* process group hash chain link prev */
167 struct sess *p_sessp; /* session information */
168 struct pid *p_pidp; /* process ID info */
169 struct pid *p_pgidp; /* process group ID info */
170 /*
171 * Fields protected by p_lock
172 */
173 kcondvar_t p_cv; /* proc struct's condition variable */
174 kcondvar_t p_flag_cv;
175 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */
176 kcondvar_t p_holdlwps; /* process is waiting for its lwps */
177 /* to to be held. */
178 uint_t p_proc_flag; /* /proc-related flags */
179 uint_t p_flag; /* protected while set. */
180 /* flags defined below */
181 clock_t p_utime; /* user time, this process */
182 clock_t p_stime; /* system time, this process */
183 clock_t p_cutime; /* sum of children's user time */
184 clock_t p_cstime; /* sum of children's system time */
185 avl_tree_t *p_segacct; /* System V shared segment list */
186 avl_tree_t *p_semacct; /* System V semaphore undo list */
187 caddr_t p_bssbase; /* base addr of last bss below heap */
188 caddr_t p_brkbase; /* base addr of heap */
189 size_t p_brksize; /* heap size in bytes */
190 uint_t p_brkpageszc; /* preferred heap max page size code */
191 /*
192 * Per process signal stuff.
193 */
194 k_sigset_t p_sig; /* signals pending to this process */
195 k_sigset_t p_extsig; /* signals sent from another contract */
196 k_sigset_t p_ignore; /* ignore when generated */
197 k_sigset_t p_siginfo; /* gets signal info with signal */
198 void *p_sigfd; /* signalfd support state */
199 struct sigqueue *p_sigqueue; /* queued siginfo structures */
200 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */
201 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */
202 uchar_t p_stopsig; /* jobcontrol stop signal */
203
204 /*
205 * Special per-process flag when set will fix misaligned memory
206 * references.
207 */
208 char p_fixalignment;
209
210 /*
211 * Per process lwp and kernel thread stuff
212 */
213 id_t p_lwpid; /* most recently allocated lwpid */
214 int p_lwpcnt; /* number of lwps in this process */
215 int p_lwprcnt; /* number of not stopped lwps */
216 int p_lwpdaemon; /* number of TP_DAEMON lwps */
217 int p_lwpwait; /* number of lwps in lwp_wait() */
218 int p_lwpdwait; /* number of daemons in lwp_wait() */
219 int p_zombcnt; /* number of zombie lwps */
220 kthread_t *p_tlist; /* circular list of threads */
221 lwpdir_t *p_lwpdir; /* thread (lwp) directory */
222 lwpdir_t *p_lwpfree; /* p_lwpdir free list */
223 tidhash_t *p_tidhash; /* tid (lwpid) lookup hash table */
224 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */
225 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */
226 ret_tidhash_t *p_ret_tidhash; /* retired tidhash hash tables */
227 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */
228 /* on which process has threads */
229 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */
230 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */
231 #if defined(_LP64)
232 uintptr_t p_lgrpres2; /* reserved for lgrp migration */
233 #endif
234 /*
235 * /proc (process filesystem) debugger interface stuff.
236 */
237 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */
238 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */
239 struct vnode *p_trace; /* pointer to primary /proc vnode */
240 struct vnode *p_plist; /* list of /proc vnodes for process */
241 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */
242 avl_tree_t p_warea; /* list of watched areas */
243 avl_tree_t p_wpage; /* remembered watched pages (vfork) */
244 watched_page_t *p_wprot; /* pages that need to have prot set */
245 int p_mapcnt; /* number of active pr_mappage()s */
246 kmutex_t p_maplock; /* lock for pr_mappage() */
247 struct proc *p_rlink; /* linked list for server */
248 kcondvar_t p_srwchan_cv;
249 size_t p_stksize; /* process stack size in bytes */
250 uint_t p_stkpageszc; /* preferred stack max page size code */
251
252 /*
253 * Microstate accounting, resource usage, and real-time profiling
254 */
255 hrtime_t p_mstart; /* hi-res process start time */
256 hrtime_t p_mterm; /* hi-res process termination time */
257 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */
258 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */
259 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */
260 struct lrusage p_ru; /* lrusage sum over defunct lwps */
261 struct lrusage p_cru; /* lrusage sum over child procs */
262 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */
263 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */
264 uint_t p_defunct; /* number of defunct lwps */
265 /*
266 * profiling. A lock is used in the event of multiple lwp's
267 * using the same profiling base/size.
268 */
269 kmutex_t p_pflock; /* protects user profile arguments */
270 struct prof p_prof; /* profile arguments */
271
272 /*
273 * Doors.
274 */
275 door_pool_t p_server_threads; /* common thread pool */
276 struct door_node *p_door_list; /* active doors */
277 struct door_node *p_unref_list;
278 kcondvar_t p_unref_cv;
279 char p_unref_thread; /* unref thread created */
280
281 /*
282 * Kernel probes
283 */
284 uchar_t p_tnf_flags;
285
286 /*
287 * Solaris Audit
288 */
289 struct p_audit_data *p_audit_data; /* per process audit structure */
290
291 pctxop_t *p_pctx;
292
293 #if defined(__x86)
294 /*
295 * LDT support.
296 */
297 kmutex_t p_ldtlock; /* protects the following fields */
298 user_desc_t *p_ldt; /* Pointer to private LDT */
299 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */
300 ushort_t p_ldtlimit; /* highest selector used */
301 #endif
302 size_t p_swrss; /* resident set size before last swap */
303 struct aio *p_aio; /* pointer to async I/O struct */
304 struct itimer **p_itimer; /* interval timers */
305 timeout_id_t p_alarmid; /* alarm's timeout id */
306 caddr_t p_usrstack; /* top of the process stack */
307 uint_t p_stkprot; /* stack memory protection */
308 uint_t p_datprot; /* data memory protection */
309 model_t p_model; /* data model determined at exec time */
310 struct lwpchan_data *p_lcp; /* lwpchan cache */
311 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */
312 utrap_handler_t *p_utraps; /* pointer to user trap handlers */
313 struct corectl_path *p_corefile; /* pattern for core file */
314 struct task *p_task; /* our containing task */
315 struct proc *p_taskprev; /* ptr to previous process in task */
316 struct proc *p_tasknext; /* ptr to next process in task */
317 kmutex_t p_sc_lock; /* protects p_pagep */
318 struct sc_page_ctl *p_pagep; /* list of process's shared pages */
319 struct rctl_set *p_rctls; /* resource controls for this process */
320 rlim64_t p_stk_ctl; /* currently enforced stack size */
321 rlim64_t p_fsz_ctl; /* currently enforced file size */
322 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */
323 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */
324 pid_t p_ancpid; /* ancestor pid, used by exacct */
325 struct itimerval p_realitimer; /* real interval timer */
326 timeout_id_t p_itimerid; /* real interval timer's timeout id */
327 struct corectl_content *p_content; /* content of core file */
328
329 avl_tree_t p_ct_held; /* held contracts */
330 struct ct_equeue **p_ct_equeue; /* process-type event queues */
331
332 struct cont_process *p_ct_process; /* process contract */
333 list_node_t p_ct_member; /* process contract membership */
334 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */
335
336 int p_dtrace_probes; /* are there probes for this proc? */
337 uint64_t p_dtrace_count; /* number of DTrace tracepoints */
338 /* (protected by P_PR_LOCK) */
339 void *p_dtrace_helpers; /* DTrace helpers, if any */
340 struct pool *p_pool; /* pointer to containing pool */
341 kcondvar_t p_poolcv; /* synchronization with pools */
342 uint_t p_poolcnt; /* # threads inside pool barrier */
343 uint_t p_poolflag; /* pool-related flags (see below) */
344 uintptr_t p_portcnt; /* event ports counter */
345 struct zone *p_zone; /* zone in which process lives */
346 struct vnode *p_execdir; /* directory that p_exec came from */
347 struct brand *p_brand; /* process's brand */
348 void *p_brand_data; /* per-process brand state */
349
350 /* additional lock to protect p_sessp (but not its contents) */
351 kmutex_t p_splock;
352 rctl_qty_t p_locked_mem; /* locked memory charged to proc */
353 /* protected by p_lock */
354 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */
355 /* protected by p_lock */
356 clock_t p_ttime; /* buffered task time */
357
358 /*
359 * The user structure
360 */
361 struct user p_user; /* (see sys/user.h) */
362 } proc_t;
363
364 #define PROC_T /* headers relying on proc_t are OK */
365
366 #ifdef _KERNEL
367
368 /* active process chain */
369
370 extern proc_t *practive;
371
372 /* Well known processes */
373
374 extern proc_t *proc_sched; /* memory scheduler */
375 extern proc_t *proc_init; /* init */
376 extern proc_t *proc_pageout; /* pageout daemon */
377 extern proc_t *proc_fsflush; /* filesystem sync-er */
378
379 #endif /* _KERNEL */
380
381 /*
382 * Stuff to keep track of the number of processes each uid has.
383 * It is tracked on a per-zone basis; that is, if users in different
384 * zones have the same uid, they are tracked separately.
385 *
386 * A structure is allocated when a new <uid,zoneid> pair shows up
387 * There is a hash to find each structure.
388 */
389 struct upcount {
390 struct upcount *up_next;
391 uid_t up_uid;
392 zoneid_t up_zoneid;
393 uint_t up_count;
394 };
395
396 /* process ID info */
397
398 struct pid {
399 unsigned int pid_prinactive :1;
400 unsigned int pid_pgorphaned :1;
401 unsigned int pid_padding :6; /* used to be pid_ref, now an int */
402 unsigned int pid_prslot :24;
403 pid_t pid_id;
404 struct proc *pid_pglink;
405 struct proc *pid_pgtail;
406 struct pid *pid_link;
407 uint_t pid_ref;
408 };
409
410 #define p_pgrp p_pgidp->pid_id
411 #define p_pid p_pidp->pid_id
412 #define p_slot p_pidp->pid_prslot
413 #define p_detached p_pgidp->pid_pgorphaned
414
415 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
416 ++(pidp)->pid_ref;
417 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
418 (pidp)->pid_ref > 1 ? \
419 --(pidp)->pid_ref : pid_rele(pidp);
420
421 /*
422 * Structure containing persistent process lock. The structure and
423 * macro allow "mutex_enter(&p->p_lock)" to continue working.
424 */
425 struct plock {
426 kmutex_t pl_lock;
427 };
428 #define p_lock p_lockp->pl_lock
429
430 #ifdef _KERNEL
431 extern proc_t p0; /* process 0 */
432 extern struct plock p0lock; /* p0's plock */
433 extern struct pid pid0; /* p0's pid */
434
435 /* pid_allocate() flags */
436 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */
437
438 #endif /* _KERNEL */
439
440 /* stat codes */
441
442 #define SSLEEP 1 /* awaiting an event */
443 #define SRUN 2 /* runnable */
444 #define SZOMB 3 /* process terminated but not waited for */
445 #define SSTOP 4 /* process stopped by debugger */
446 #define SIDL 5 /* intermediate state in process creation */
447 #define SONPROC 6 /* process is being run on a processor */
448 #define SWAIT 7 /* process is waiting to become runnable */
449
450 /* p_pidflag codes */
451 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */
452 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */
453 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */
454 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */
455
456 /* p_proc_flag codes -- these flags are mostly private to /proc */
457 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */
458 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */
459 #define P_PR_FORK 0x0004 /* child inherits tracing flags */
460 #define P_PR_LOCK 0x0008 /* process locked by /proc */
461 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */
462 #define P_PR_EXEC 0x0020 /* process is in exec() */
463 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */
464 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */
465 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */
466
467 /*
468 * p_flag codes
469 *
470 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's
471 * psinfo_t.p_flag field. Historically, all were, but since they are
472 * implementation dependant, we only export the ones people have come to
473 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be
474 * altered.
475 */
476 #define SSYS 0x00000001 /* system (resident) process */
477 #define SEXITING 0x00000002 /* process is exiting */
478 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */
479 #define SFORKING 0x00000008 /* tells called functions that we're forking */
480 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */
481 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */
482 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */
483 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */
484 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */
485 #define SUGID 0x00002000 /* process was result of set[ug]id exec */
486 #define SEXECED 0x00004000 /* this process has execed */
487 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */
488 #define SNOWAIT 0x00020000 /* children never become zombies */
489 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */
490 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */
491 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */
492 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */
493 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */
494 #define SCOREDUMP 0x01000000 /* process is dumping core */
495 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */
496 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */
497 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */
498 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */
499 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */
500 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */
501 #define SDOCORE 0x80000000 /* process will attempt to dump core */
502
503 /*
504 * p_poolflag codes
505 *
506 * These flags are used to synchronize with the pool subsystem to allow
507 * re-binding of processes to new pools.
508 */
509 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */
510 #define PEXITED 0x0002 /* process exited and about to become zombie */
511
512 /* Macro to convert proc pointer to a user block pointer */
513 #define PTOU(p) (&(p)->p_user)
514
515 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig))
516
517 /* Macro to reduce unnecessary calls to issig() */
518
519 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why)
520
521 /*
522 * Fast version of ISSIG.
523 * 1. uses register pointers to lwp and proc instead of reloading them.
524 * 2. uses bit-wise OR of tests, since the usual case is that none of them
525 * are true, this saves orcc's and branches.
526 * 3. load the signal flags instead of using sigisempty() macro which does
527 * a branch to convert to boolean.
528 */
529 #define ISSIG_FAST(t, lwp, p, why) \
530 (ISSIG_PENDING(t, lwp, p) && issig(why))
531
532 #define ISSIG_PENDING(t, lwp, p) \
533 ((lwp)->lwp_cursig | \
534 sigcheck((p), (t)) | \
535 (p)->p_stopsig | \
536 (t)->t_dtrace_stop | \
537 (t)->t_dtrace_sig | \
538 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \
539 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH)))
540
541 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \
542 sigismember(&stopdefault, sig))
543
544 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK)
545
546 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale)
547
548 /*
549 * Determine if there are any watchpoints active in the process.
550 */
551 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0)
552
553 /* Reasons for calling issig() */
554
555 #define FORREAL 0 /* Usual side-effects */
556 #define JUSTLOOKING 1 /* Don't stop the process */
557
558 /* 'what' values for stop(PR_SUSPENDED, what) */
559 #define SUSPEND_NORMAL 0
560 #define SUSPEND_PAUSE 1
561
562 /* pseudo-flag to lwp_create() */
563 #define NOCLASS (-1)
564
565 /* unused scheduling class ID */
566 #define CLASS_UNUSED (-2)
567
568 /* LWP stats updated via lwp_stats_update() */
569 typedef enum {
570 LWP_STAT_INBLK,
571 LWP_STAT_OUBLK,
572 LWP_STAT_MSGRCV,
573 LWP_STAT_MSGSND
574 } lwp_stat_id_t;
575
576 typedef struct prkillinfo {
577 int32_t prk_error; /* errno */
578 int32_t prk_pad; /* pad */
579 siginfo_t prk_info; /* siginfo of killing signal */
580 } prkillinfo_t;
581
582 #ifdef _KERNEL
583
584 /* user profiling functions */
585
586 extern void profil_tick(uintptr_t);
587
588 /* process management functions */
589
590 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **, pid_t);
591 extern void vfwait(pid_t);
592 extern void proc_detach(proc_t *);
593 extern void freeproc(proc_t *);
594 extern void setrun(kthread_t *);
595 extern void setrun_locked(kthread_t *);
596 extern void exit(int, int);
597 extern int proc_exit(int, int);
598 extern void proc_is_exiting(proc_t *);
599 extern void relvm(void);
600 extern void add_ns(proc_t *, proc_t *);
601 extern void delete_ns(proc_t *, proc_t *);
602 extern void upcount_inc(uid_t, zoneid_t);
603 extern void upcount_dec(uid_t, zoneid_t);
604 extern int upcount_get(uid_t, zoneid_t);
605 #if defined(__x86)
606 extern selector_t setup_thrptr(proc_t *, uintptr_t);
607 extern void deferred_singlestep_trap(caddr_t);
608 #endif
609
610 extern void sigcld(proc_t *, sigqueue_t *);
611 extern void sigcld_delete(k_siginfo_t *);
612 extern void sigcld_repost(void);
613 extern int fsig(k_sigset_t *, kthread_t *);
614 extern void psig(void);
615 extern void stop(int, int);
616 extern int stop_on_fault(uint_t, k_siginfo_t *);
617 extern int issig(int);
618 extern int jobstopped(proc_t *);
619 extern void psignal(proc_t *, int);
620 extern void tsignal(kthread_t *, int);
621 extern void sigtoproc(proc_t *, kthread_t *, int);
622 extern void trapsig(k_siginfo_t *, int);
623 extern void realsigprof(int, int, int);
624 extern int eat_signal(kthread_t *, int);
625 extern int signal_is_blocked(kthread_t *, int);
626 extern int sigcheck(proc_t *, kthread_t *);
627 extern void sigdefault(proc_t *);
628
629 extern void pid_setmin(void);
630 extern pid_t pid_allocate(proc_t *, pid_t, int);
631 extern int pid_rele(struct pid *);
632 extern void pid_exit(proc_t *, struct task *);
633 extern void proc_entry_free(struct pid *);
634 extern proc_t *prfind(pid_t);
635 extern proc_t *prfind_zone(pid_t, zoneid_t);
636 extern proc_t *pgfind(pid_t);
637 extern proc_t *pgfind_zone(pid_t, zoneid_t);
638 extern proc_t *sprlock(pid_t);
639 extern proc_t *sprlock_zone(pid_t, zoneid_t);
640 extern int sprtrylock_proc(proc_t *);
641 extern void sprwaitlock_proc(proc_t *);
642 extern void sprlock_proc(proc_t *);
643 extern void sprunlock(proc_t *);
644 extern void pid_init(void);
645 extern proc_t *pid_entry(int);
646 extern int pid_slot(proc_t *);
647 extern void signal(pid_t, int);
648 extern void prsignal(struct pid *, int);
649 extern int uread(proc_t *, void *, size_t, uintptr_t);
650 extern int uwrite(proc_t *, void *, size_t, uintptr_t);
651
652 extern void pgsignal(struct pid *, int);
653 extern void pgjoin(proc_t *, struct pid *);
654 extern void pgcreate(proc_t *);
655 extern void pgexit(proc_t *);
656 extern void pgdetach(proc_t *);
657 extern int pgmembers(pid_t);
658
659 extern void init_mstate(kthread_t *, int);
660 extern int new_mstate(kthread_t *, int);
661 extern void restore_mstate(kthread_t *);
662 extern void term_mstate(kthread_t *);
663 extern void estimate_msacct(kthread_t *, hrtime_t);
664 extern void disable_msacct(proc_t *);
665 extern hrtime_t mstate_aggr_state(proc_t *, int);
666 extern hrtime_t mstate_thread_onproc_time(kthread_t *);
667 extern void mstate_systhread_times(kthread_t *, hrtime_t *, hrtime_t *);
668 extern void syscall_mstate(int, int);
669
670 extern uint_t cpu_update_pct(kthread_t *, hrtime_t);
671
672 extern void set_proc_pre_sys(proc_t *p);
673 extern void set_proc_post_sys(proc_t *p);
674 extern void set_proc_sys(proc_t *p);
675 extern void set_proc_ast(proc_t *p);
676 extern void set_all_proc_sys(void);
677 extern void set_all_zone_usr_proc_sys(zoneid_t);
678
679 /* thread function prototypes */
680
681 extern kthread_t *thread_create(
682 caddr_t stk,
683 size_t stksize,
684 void (*proc)(),
685 void *arg,
686 size_t len,
687 proc_t *pp,
688 int state,
689 pri_t pri);
690 extern void thread_exit(void) __NORETURN;
691 extern void thread_free(kthread_t *);
692 extern void thread_rele(kthread_t *);
693 extern void thread_join(kt_did_t);
694 extern int reaper(void);
695 extern void installctx(kthread_t *, void *, void (*)(), void (*)(),
696 void (*)(), void (*)(), void (*)(), void (*)());
697 extern int removectx(kthread_t *, void *, void (*)(), void (*)(),
698 void (*)(), void (*)(), void (*)(), void (*)());
699 extern void savectx(kthread_t *);
700 extern void restorectx(kthread_t *);
701 extern void forkctx(kthread_t *, kthread_t *);
702 extern void lwp_createctx(kthread_t *, kthread_t *);
703 extern void exitctx(kthread_t *);
704 extern void freectx(kthread_t *, int);
705 extern void installpctx(proc_t *, void *, void (*)(), void (*)(),
706 void (*)(), void (*)(), void (*)());
707 extern int removepctx(proc_t *, void *, void (*)(), void (*)(),
708 void (*)(), void (*)(), void (*)());
709 extern void savepctx(proc_t *);
710 extern void restorepctx(proc_t *);
711 extern void forkpctx(proc_t *, proc_t *);
712 extern void exitpctx(proc_t *);
713 extern void freepctx(proc_t *, int);
714 extern kthread_t *thread_unpin(void);
715 extern void thread_init(void);
716 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t);
717
718 extern void tsd_create(uint_t *, void (*)(void *));
719 extern void tsd_destroy(uint_t *);
720 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void));
721 extern void *tsd_get(uint_t);
722 extern int tsd_set(uint_t, void *);
723 extern void tsd_exit(void);
724 extern void *tsd_agent_get(kthread_t *, uint_t);
725 extern int tsd_agent_set(kthread_t *, uint_t, void *);
726
727 /* lwp function prototypes */
728
729 extern kthread_t *lwp_kernel_create(proc_t *, void (*)(), void *, int, pri_t);
730 extern klwp_t *lwp_create(
731 void (*proc)(),
732 caddr_t arg,
733 size_t len,
734 proc_t *p,
735 int state,
736 int pri,
737 const k_sigset_t *smask,
738 int cid,
739 id_t lwpid);
740 extern kthread_t *idtot(proc_t *, id_t);
741 extern void lwp_hash_in(proc_t *, lwpent_t *, tidhash_t *, uint_t, int);
742 extern void lwp_hash_out(proc_t *, id_t);
743 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t);
744 extern lwpdir_t *lwp_hash_lookup_and_lock(proc_t *, id_t, kmutex_t **);
745 extern void lwp_create_done(kthread_t *);
746 extern void lwp_exit(void);
747 extern void lwp_pcb_exit(void);
748 extern void lwp_cleanup(void);
749 extern int lwp_suspend(kthread_t *);
750 extern void lwp_continue(kthread_t *);
751 extern void holdlwp(void);
752 extern void stoplwp(void);
753 extern int holdlwps(int);
754 extern int holdwatch(void);
755 extern void pokelwps(proc_t *);
756 extern void continuelwps(proc_t *);
757 extern int exitlwps(int);
758 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *);
759 extern void lwp_ctmpl_clear(klwp_t *);
760 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t);
761 extern void lwp_load(klwp_t *, gregset_t, uintptr_t);
762 extern void lwp_setrval(klwp_t *, int, int);
763 extern void lwp_forkregs(klwp_t *, klwp_t *);
764 extern void lwp_freeregs(klwp_t *, int);
765 extern caddr_t lwp_stk_init(klwp_t *, caddr_t);
766 extern void lwp_stk_cache_init(void);
767 extern void lwp_stk_fini(klwp_t *);
768 extern void lwp_installctx(klwp_t *);
769 extern void lwp_rtt(void);
770 extern void lwp_rtt_initial(void);
771 extern int lwp_setprivate(klwp_t *, int, uintptr_t);
772 extern void lwp_stat_update(lwp_stat_id_t, long);
773 extern void lwp_attach_brand_hdlrs(klwp_t *);
774 extern void lwp_detach_brand_hdlrs(klwp_t *);
775
776 #if defined(__sparcv9)
777 extern void lwp_mmodel_newlwp(void);
778 extern void lwp_mmodel_shared_as(caddr_t, size_t);
779 #define LWP_MMODEL_NEWLWP() lwp_mmodel_newlwp()
780 #define LWP_MMODEL_SHARED_AS(addr, sz) lwp_mmodel_shared_as((addr), (sz))
781 #else
782 #define LWP_MMODEL_NEWLWP()
783 #define LWP_MMODEL_SHARED_AS(addr, sz)
784 #endif
785
786 /*
787 * Signal queue function prototypes. Must be here due to header ordering
788 * dependencies.
789 */
790 extern void sigqfree(proc_t *);
791 extern void siginfofree(sigqueue_t *);
792 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **);
793 extern void sigdelq(proc_t *, kthread_t *, int);
794 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int);
795 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *);
796 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *);
797 extern void sigdupq(proc_t *, proc_t *);
798 extern int sigwillqueue(int, int);
799 extern sigqhdr_t *sigqhdralloc(size_t, uint_t);
800 extern sigqueue_t *sigqalloc(sigqhdr_t *);
801 extern void sigqhdrfree(sigqhdr_t *);
802 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *,
803 k_sigset_t *, sigqueue_t *);
804 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *,
805 k_sigset_t *, sigqueue_t *);
806 extern void winfo(proc_t *, k_siginfo_t *, int);
807 extern int wstat(int, int);
808 extern int sendsig(int, k_siginfo_t *, void (*)());
809 #if defined(_SYSCALL32_IMPL)
810 extern int sendsig32(int, k_siginfo_t *, void (*)());
811 #endif
812
813 #endif /* _KERNEL */
814
815 #ifdef __cplusplus
816 }
817 #endif
818
819 #endif /* _SYS_PROC_H */