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/secflags.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. It contains all
134 * data needed about the process while the process may be swapped
135 * out. Other per-process data (user.h) is also inside the proc structure.
136 * Lightweight-process data (lwp.h) and the kernel stack may be swapped out.
137 */
138 typedef struct proc {
139 /*
140 * Fields requiring no explicit locking
141 */
142 struct vnode *p_exec; /* pointer to a.out vnode */
143 struct as *p_as; /* process address space pointer */
144 struct plock *p_lockp; /* ptr to proc struct's mutex lock */
145 kmutex_t p_crlock; /* lock for p_cred */
146 struct cred *p_cred; /* process credentials */
147 /*
148 * Fields protected by pidlock
149 */
150 int p_swapcnt; /* number of swapped out lwps */
151 char p_stat; /* status of process */
152 char p_wcode; /* current wait code */
153 ushort_t p_pidflag; /* flags protected only by pidlock */
154 int p_wdata; /* current wait return value */
155 pid_t p_ppid; /* process id of parent */
156 struct proc *p_link; /* forward link */
157 struct proc *p_parent; /* ptr to parent process */
158 struct proc *p_child; /* ptr to first child process */
159 struct proc *p_sibling; /* ptr to next sibling proc on chain */
160 struct proc *p_psibling; /* ptr to prev sibling proc on chain */
161 struct proc *p_sibling_ns; /* prt to siblings with new state */
162 struct proc *p_child_ns; /* prt to children with new state */
163 struct proc *p_next; /* active chain link next */
164 struct proc *p_prev; /* active chain link prev */
165 struct proc *p_nextofkin; /* gets accounting info at exit */
166 struct proc *p_orphan;
167 struct proc *p_nextorph;
168 struct proc *p_pglink; /* process group hash chain link next */
169 struct proc *p_ppglink; /* process group hash chain link prev */
170 struct sess *p_sessp; /* session information */
171 struct pid *p_pidp; /* process ID info */
172 struct pid *p_pgidp; /* process group ID info */
173 /*
174 * Fields protected by p_lock
175 */
176 kcondvar_t p_cv; /* proc struct's condition variable */
177 kcondvar_t p_flag_cv;
178 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */
179 kcondvar_t p_holdlwps; /* process is waiting for its lwps */
180 /* to to be held. */
181 uint_t p_proc_flag; /* /proc-related flags */
182 uint_t p_flag; /* protected while set. */
183 /* flags defined below */
184 clock_t p_utime; /* user time, this process */
185 clock_t p_stime; /* system time, this process */
186 clock_t p_cutime; /* sum of children's user time */
187 clock_t p_cstime; /* sum of children's system time */
188 avl_tree_t *p_segacct; /* System V shared segment list */
189 avl_tree_t *p_semacct; /* System V semaphore undo list */
190 caddr_t p_bssbase; /* base addr of last bss below heap */
191 caddr_t p_brkbase; /* base addr of heap */
192 size_t p_brksize; /* heap size in bytes */
193 uint_t p_brkpageszc; /* preferred heap max page size code */
194 /*
195 * Per process signal stuff.
196 */
197 k_sigset_t p_sig; /* signals pending to this process */
198 k_sigset_t p_extsig; /* signals sent from another contract */
199 k_sigset_t p_ignore; /* ignore when generated */
200 k_sigset_t p_siginfo; /* gets signal info with signal */
201 struct sigqueue *p_sigqueue; /* queued siginfo structures */
202 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */
203 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */
204 uchar_t p_stopsig; /* jobcontrol stop signal */
205
206 /*
207 * Special per-process flag when set will fix misaligned memory
208 * references.
209 */
210 char p_fixalignment;
211
212 /*
213 * Per process lwp and kernel thread stuff
214 */
215 id_t p_lwpid; /* most recently allocated lwpid */
216 int p_lwpcnt; /* number of lwps in this process */
217 int p_lwprcnt; /* number of not stopped lwps */
218 int p_lwpdaemon; /* number of TP_DAEMON lwps */
219 int p_lwpwait; /* number of lwps in lwp_wait() */
220 int p_lwpdwait; /* number of daemons in lwp_wait() */
221 int p_zombcnt; /* number of zombie lwps */
222 kthread_t *p_tlist; /* circular list of threads */
223 lwpdir_t *p_lwpdir; /* thread (lwp) directory */
224 lwpdir_t *p_lwpfree; /* p_lwpdir free list */
225 tidhash_t *p_tidhash; /* tid (lwpid) lookup hash table */
226 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */
227 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */
228 ret_tidhash_t *p_ret_tidhash; /* retired tidhash hash tables */
229 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */
230 /* on which process has threads */
231 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */
232 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */
233 #if defined(_LP64)
234 uintptr_t p_lgrpres2; /* reserved for lgrp migration */
235 #endif
236 /*
237 * /proc (process filesystem) debugger interface stuff.
238 */
239 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */
240 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */
241 struct vnode *p_trace; /* pointer to primary /proc vnode */
242 struct vnode *p_plist; /* list of /proc vnodes for process */
243 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */
244 avl_tree_t p_warea; /* list of watched areas */
245 avl_tree_t p_wpage; /* remembered watched pages (vfork) */
246 watched_page_t *p_wprot; /* pages that need to have prot set */
247 int p_mapcnt; /* number of active pr_mappage()s */
248 kmutex_t p_maplock; /* lock for pr_mappage() */
249 struct proc *p_rlink; /* linked list for server */
250 kcondvar_t p_srwchan_cv;
251 size_t p_stksize; /* process stack size in bytes */
252 uint_t p_stkpageszc; /* preferred stack max page size code */
253
254 /*
255 * Microstate accounting, resource usage, and real-time profiling
256 */
257 hrtime_t p_mstart; /* hi-res process start time */
258 hrtime_t p_mterm; /* hi-res process termination time */
259 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */
260 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */
261 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */
262 struct lrusage p_ru; /* lrusage sum over defunct lwps */
263 struct lrusage p_cru; /* lrusage sum over child procs */
264 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */
265 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */
266 uint_t p_defunct; /* number of defunct lwps */
267 /*
268 * profiling. A lock is used in the event of multiple lwp's
269 * using the same profiling base/size.
270 */
271 kmutex_t p_pflock; /* protects user profile arguments */
272 struct prof p_prof; /* profile arguments */
273
274 /*
275 * Doors.
276 */
277 door_pool_t p_server_threads; /* common thread pool */
278 struct door_node *p_door_list; /* active doors */
279 struct door_node *p_unref_list;
280 kcondvar_t p_unref_cv;
281 char p_unref_thread; /* unref thread created */
282
283 /*
284 * Kernel probes
285 */
286 uchar_t p_tnf_flags;
287
288 /*
289 * Solaris Audit
290 */
291 struct p_audit_data *p_audit_data; /* per process audit structure */
292
293 pctxop_t *p_pctx;
294
295 #if defined(__x86)
296 /*
297 * LDT support.
298 */
299 kmutex_t p_ldtlock; /* protects the following fields */
300 user_desc_t *p_ldt; /* Pointer to private LDT */
301 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */
302 ushort_t p_ldtlimit; /* highest selector used */
303 #endif
304 size_t p_swrss; /* resident set size before last swap */
305 struct aio *p_aio; /* pointer to async I/O struct */
306 struct itimer **p_itimer; /* interval timers */
307 timeout_id_t p_alarmid; /* alarm's timeout id */
308 caddr_t p_usrstack; /* top of the process stack */
309 uint_t p_stkprot; /* stack memory protection */
310 uint_t p_datprot; /* data memory protection */
311 model_t p_model; /* data model determined at exec time */
312 struct lwpchan_data *p_lcp; /* lwpchan cache */
313 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */
314 utrap_handler_t *p_utraps; /* pointer to user trap handlers */
315 struct corectl_path *p_corefile; /* pattern for core file */
316 struct task *p_task; /* our containing task */
317 struct proc *p_taskprev; /* ptr to previous process in task */
318 struct proc *p_tasknext; /* ptr to next process in task */
319 kmutex_t p_sc_lock; /* protects p_pagep */
320 struct sc_page_ctl *p_pagep; /* list of process's shared pages */
321 struct rctl_set *p_rctls; /* resource controls for this process */
322 rlim64_t p_stk_ctl; /* currently enforced stack size */
323 rlim64_t p_fsz_ctl; /* currently enforced file size */
324 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */
325 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */
326 pid_t p_ancpid; /* ancestor pid, used by exacct */
327 struct itimerval p_realitimer; /* real interval timer */
328 timeout_id_t p_itimerid; /* real interval timer's timeout id */
329 struct corectl_content *p_content; /* content of core file */
330
331 avl_tree_t p_ct_held; /* held contracts */
332 struct ct_equeue **p_ct_equeue; /* process-type event queues */
333
334 struct cont_process *p_ct_process; /* process contract */
335 list_node_t p_ct_member; /* process contract membership */
336 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */
337
338 int p_dtrace_probes; /* are there probes for this proc? */
339 uint64_t p_dtrace_count; /* number of DTrace tracepoints */
340 /* (protected by P_PR_LOCK) */
341 void *p_dtrace_helpers; /* DTrace helpers, if any */
342 struct pool *p_pool; /* pointer to containing pool */
343 kcondvar_t p_poolcv; /* synchronization with pools */
344 uint_t p_poolcnt; /* # threads inside pool barrier */
345 uint_t p_poolflag; /* pool-related flags (see below) */
346 uintptr_t p_portcnt; /* event ports counter */
347 struct zone *p_zone; /* zone in which process lives */
348 struct vnode *p_execdir; /* directory that p_exec came from */
349 struct brand *p_brand; /* process's brand */
350 void *p_brand_data; /* per-process brand state */
351 psecflags_t p_secflags; /* per-process security flags */
352
353 /* additional lock to protect p_sessp (but not its contents) */
354 kmutex_t p_splock;
355 rctl_qty_t p_locked_mem; /* locked memory charged to proc */
356 /* protected by p_lock */
357 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */
358 /* protected by p_lock */
359 clock_t p_ttime; /* buffered task time */
360
361 /*
362 * The user structure
363 */
364 struct user p_user; /* (see sys/user.h) */
365 } proc_t;
366
367 #define PROC_T /* headers relying on proc_t are OK */
368
369 #ifdef _KERNEL
370
371 /* active process chain */
372
373 extern proc_t *practive;
374
375 /* Well known processes */
376
377 extern proc_t *proc_sched; /* memory scheduler */
378 extern proc_t *proc_init; /* init */
379 extern proc_t *proc_pageout; /* pageout daemon */
380 extern proc_t *proc_fsflush; /* filesystem sync-er */
381
382 #endif /* _KERNEL */
383
384 /*
385 * Stuff to keep track of the number of processes each uid has.
386 * It is tracked on a per-zone basis; that is, if users in different
387 * zones have the same uid, they are tracked separately.
388 *
389 * A structure is allocated when a new <uid,zoneid> pair shows up
390 * There is a hash to find each structure.
391 */
392 struct upcount {
393 struct upcount *up_next;
394 uid_t up_uid;
395 zoneid_t up_zoneid;
396 uint_t up_count;
397 };
398
399 /* process ID info */
400
401 struct pid {
402 unsigned int pid_prinactive :1;
403 unsigned int pid_pgorphaned :1;
404 unsigned int pid_padding :6; /* used to be pid_ref, now an int */
405 unsigned int pid_prslot :24;
406 pid_t pid_id;
407 struct proc *pid_pglink;
408 struct proc *pid_pgtail;
409 struct pid *pid_link;
410 uint_t pid_ref;
411 };
412
413 #define p_pgrp p_pgidp->pid_id
414 #define p_pid p_pidp->pid_id
415 #define p_slot p_pidp->pid_prslot
416 #define p_detached p_pgidp->pid_pgorphaned
417
418 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
419 ++(pidp)->pid_ref;
420 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
421 (pidp)->pid_ref > 1 ? \
422 --(pidp)->pid_ref : pid_rele(pidp);
423
424 /*
425 * Structure containing persistent process lock. The structure and
426 * macro allow "mutex_enter(&p->p_lock)" to continue working.
427 */
428 struct plock {
429 kmutex_t pl_lock;
430 };
431 #define p_lock p_lockp->pl_lock
432
433 #ifdef _KERNEL
434 extern proc_t p0; /* process 0 */
435 extern struct plock p0lock; /* p0's plock */
436 extern struct pid pid0; /* p0's pid */
437
438 /* pid_allocate() flags */
439 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */
440
441 #endif /* _KERNEL */
442
443 /* stat codes */
444
445 #define SSLEEP 1 /* awaiting an event */
446 #define SRUN 2 /* runnable */
447 #define SZOMB 3 /* process terminated but not waited for */
448 #define SSTOP 4 /* process stopped by debugger */
449 #define SIDL 5 /* intermediate state in process creation */
450 #define SONPROC 6 /* process is being run on a processor */
451 #define SWAIT 7 /* process is waiting to become runnable */
452
453 /* p_pidflag codes */
454 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */
455 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */
456 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */
457 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */
458
459 /* p_proc_flag codes -- these flags are mostly private to /proc */
460 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */
461 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */
462 #define P_PR_FORK 0x0004 /* child inherits tracing flags */
463 #define P_PR_LOCK 0x0008 /* process locked by /proc */
464 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */
465 #define P_PR_EXEC 0x0020 /* process is in exec() */
466 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */
467 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */
468 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */
469
470 /*
471 * p_flag codes
472 *
473 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's
474 * psinfo_t.p_flag field. Historically, all were, but since they are
475 * implementation dependant, we only export the ones people have come to
476 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be
477 * altered.
478 */
479 #define SSYS 0x00000001 /* system (resident) process */
480 #define SEXITING 0x00000002 /* process is exiting */
481 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */
482 #define SFORKING 0x00000008 /* tells called functions that we're forking */
483 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */
484 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */
485 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */
486 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */
487 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */
488 #define SUGID 0x00002000 /* process was result of set[ug]id exec */
489 #define SEXECED 0x00004000 /* this process has execed */
490 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */
491 #define SNOWAIT 0x00020000 /* children never become zombies */
492 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */
493 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */
494 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */
495 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */
496 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */
497 #define SCOREDUMP 0x01000000 /* process is dumping core */
498 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */
499 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */
500 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */
501 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */
502 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */
503 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */
504 #define SDOCORE 0x80000000 /* process will attempt to dump core */
505
506 /*
507 * p_poolflag codes
508 *
509 * These flags are used to synchronize with the pool subsystem to allow
510 * re-binding of processes to new pools.
511 */
512 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */
513 #define PEXITED 0x0002 /* process exited and about to become zombie */
514
515 /* Macro to convert proc pointer to a user block pointer */
516 #define PTOU(p) (&(p)->p_user)
517
518 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig))
519
520 /* Macro to reduce unnecessary calls to issig() */
521
522 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why)
523
524 /*
525 * Fast version of ISSIG.
526 * 1. uses register pointers to lwp and proc instead of reloading them.
527 * 2. uses bit-wise OR of tests, since the usual case is that none of them
528 * are true, this saves orcc's and branches.
529 * 3. load the signal flags instead of using sigisempty() macro which does
530 * a branch to convert to boolean.
531 */
532 #define ISSIG_FAST(t, lwp, p, why) \
533 (ISSIG_PENDING(t, lwp, p) && issig(why))
534
535 #define ISSIG_PENDING(t, lwp, p) \
536 ((lwp)->lwp_cursig | \
537 sigcheck((p), (t)) | \
538 (p)->p_stopsig | \
539 (t)->t_dtrace_stop | \
540 (t)->t_dtrace_sig | \
541 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \
542 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH)))
543
544 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \
545 sigismember(&stopdefault, sig))
546
547 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK)
548
549 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale)
550
551 /*
552 * Determine if there are any watchpoints active in the process.
553 */
554 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0)
555
556 /* Reasons for calling issig() */
557
558 #define FORREAL 0 /* Usual side-effects */
559 #define JUSTLOOKING 1 /* Don't stop the process */
560
561 /* 'what' values for stop(PR_SUSPENDED, what) */
562 #define SUSPEND_NORMAL 0
563 #define SUSPEND_PAUSE 1
564
565 /* pseudo-flag to lwp_create() */
566 #define NOCLASS (-1)
567
568 /* unused scheduling class ID */
569 #define CLASS_UNUSED (-2)
570
571 /* LWP stats updated via lwp_stats_update() */
572 typedef enum {
573 LWP_STAT_INBLK,
574 LWP_STAT_OUBLK,
575 LWP_STAT_MSGRCV,
576 LWP_STAT_MSGSND
577 } lwp_stat_id_t;
578
579 typedef struct prkillinfo {
580 int32_t prk_error; /* errno */
581 int32_t prk_pad; /* pad */
582 siginfo_t prk_info; /* siginfo of killing signal */
583 } prkillinfo_t;
584
585 #ifdef _KERNEL
586
587 /* user profiling functions */
588
589 extern void profil_tick(uintptr_t);
590
591 /* process management functions */
592
593 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **, pid_t);
594 extern void vfwait(pid_t);
595 extern void proc_detach(proc_t *);
596 extern void freeproc(proc_t *);
597 extern void setrun(kthread_t *);
598 extern void setrun_locked(kthread_t *);
599 extern void exit(int, int);
600 extern int proc_exit(int, int);
601 extern void proc_is_exiting(proc_t *);
602 extern void relvm(void);
603 extern void add_ns(proc_t *, proc_t *);
604 extern void delete_ns(proc_t *, proc_t *);
605 extern void upcount_inc(uid_t, zoneid_t);
606 extern void upcount_dec(uid_t, zoneid_t);
607 extern int upcount_get(uid_t, zoneid_t);
608 #if defined(__x86)
609 extern selector_t setup_thrptr(proc_t *, uintptr_t);
610 extern void deferred_singlestep_trap(caddr_t);
611 #endif
612
613 extern void sigcld(proc_t *, sigqueue_t *);
614 extern void sigcld_delete(k_siginfo_t *);
615 extern void sigcld_repost(void);
616 extern int fsig(k_sigset_t *, kthread_t *);
617 extern void psig(void);
618 extern void stop(int, int);
619 extern int stop_on_fault(uint_t, k_siginfo_t *);
620 extern int issig(int);
621 extern int jobstopped(proc_t *);
622 extern void psignal(proc_t *, int);
623 extern void tsignal(kthread_t *, int);
624 extern void sigtoproc(proc_t *, kthread_t *, int);
625 extern void trapsig(k_siginfo_t *, int);
626 extern void realsigprof(int, int, int);
627 extern int eat_signal(kthread_t *, int);
628 extern int signal_is_blocked(kthread_t *, int);
629 extern int sigcheck(proc_t *, kthread_t *);
630 extern void sigdefault(proc_t *);
631
632 extern void pid_setmin(void);
633 extern pid_t pid_allocate(proc_t *, pid_t, int);
634 extern int pid_rele(struct pid *);
635 extern void pid_exit(proc_t *, struct task *);
636 extern void proc_entry_free(struct pid *);
637 extern proc_t *prfind(pid_t);
638 extern proc_t *prfind_zone(pid_t, zoneid_t);
639 extern proc_t *pgfind(pid_t);
640 extern proc_t *pgfind_zone(pid_t, zoneid_t);
641 extern proc_t *sprlock(pid_t);
642 extern proc_t *sprlock_zone(pid_t, zoneid_t);
643 extern int sprtrylock_proc(proc_t *);
644 extern void sprwaitlock_proc(proc_t *);
645 extern void sprlock_proc(proc_t *);
646 extern void sprunlock(proc_t *);
647 extern void pid_init(void);
648 extern proc_t *pid_entry(int);
649 extern int pid_slot(proc_t *);
650 extern void signal(pid_t, int);
651 extern void prsignal(struct pid *, int);
652 extern int uread(proc_t *, void *, size_t, uintptr_t);
653 extern int uwrite(proc_t *, void *, size_t, uintptr_t);
654
655 extern void pgsignal(struct pid *, int);
656 extern void pgjoin(proc_t *, struct pid *);
657 extern void pgcreate(proc_t *);
658 extern void pgexit(proc_t *);
659 extern void pgdetach(proc_t *);
660 extern int pgmembers(pid_t);
661
662 extern void init_mstate(kthread_t *, int);
663 extern int new_mstate(kthread_t *, int);
664 extern void restore_mstate(kthread_t *);
665 extern void term_mstate(kthread_t *);
666 extern void estimate_msacct(kthread_t *, hrtime_t);
667 extern void disable_msacct(proc_t *);
668 extern hrtime_t mstate_aggr_state(proc_t *, int);
669 extern hrtime_t mstate_thread_onproc_time(kthread_t *);
670 extern void mstate_systhread_times(kthread_t *, hrtime_t *, hrtime_t *);
671 extern void syscall_mstate(int, int);
672
673 extern uint_t cpu_update_pct(kthread_t *, hrtime_t);
674
675 extern void set_proc_pre_sys(proc_t *p);
676 extern void set_proc_post_sys(proc_t *p);
677 extern void set_proc_sys(proc_t *p);
678 extern void set_proc_ast(proc_t *p);
679 extern void set_all_proc_sys(void);
680 extern void set_all_zone_usr_proc_sys(zoneid_t);
681
682 /* thread function prototypes */
683
684 extern kthread_t *thread_create(
685 caddr_t stk,
686 size_t stksize,
687 void (*proc)(),
688 void *arg,
689 size_t len,
690 proc_t *pp,
691 int state,
692 pri_t pri);
693 extern void thread_exit(void) __NORETURN;
694 extern void thread_free(kthread_t *);
695 extern void thread_rele(kthread_t *);
696 extern void thread_join(kt_did_t);
697 extern int reaper(void);
698 extern void installctx(kthread_t *, void *, void (*)(), void (*)(),
699 void (*)(), void (*)(), void (*)(), void (*)());
700 extern int removectx(kthread_t *, void *, void (*)(), void (*)(),
701 void (*)(), void (*)(), void (*)(), void (*)());
702 extern void savectx(kthread_t *);
703 extern void restorectx(kthread_t *);
704 extern void forkctx(kthread_t *, kthread_t *);
705 extern void lwp_createctx(kthread_t *, kthread_t *);
706 extern void exitctx(kthread_t *);
707 extern void freectx(kthread_t *, int);
708 extern void installpctx(proc_t *, void *, void (*)(), void (*)(),
709 void (*)(), void (*)(), void (*)());
710 extern int removepctx(proc_t *, void *, void (*)(), void (*)(),
711 void (*)(), void (*)(), void (*)());
712 extern void savepctx(proc_t *);
713 extern void restorepctx(proc_t *);
714 extern void forkpctx(proc_t *, proc_t *);
715 extern void exitpctx(proc_t *);
716 extern void freepctx(proc_t *, int);
717 extern kthread_t *thread_unpin(void);
718 extern void thread_init(void);
719 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t);
720
721 extern void tsd_create(uint_t *, void (*)(void *));
722 extern void tsd_destroy(uint_t *);
723 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void));
724 extern void *tsd_get(uint_t);
725 extern int tsd_set(uint_t, void *);
726 extern void tsd_exit(void);
727 extern void *tsd_agent_get(kthread_t *, uint_t);
728 extern int tsd_agent_set(kthread_t *, uint_t, void *);
729
730 /* lwp function prototypes */
731
732 extern kthread_t *lwp_kernel_create(proc_t *, void (*)(), void *, int, pri_t);
733 extern klwp_t *lwp_create(
734 void (*proc)(),
735 caddr_t arg,
736 size_t len,
737 proc_t *p,
738 int state,
739 int pri,
740 const k_sigset_t *smask,
741 int cid,
742 id_t lwpid);
743 extern kthread_t *idtot(proc_t *, id_t);
744 extern void lwp_hash_in(proc_t *, lwpent_t *, tidhash_t *, uint_t, int);
745 extern void lwp_hash_out(proc_t *, id_t);
746 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t);
747 extern lwpdir_t *lwp_hash_lookup_and_lock(proc_t *, id_t, kmutex_t **);
748 extern void lwp_create_done(kthread_t *);
749 extern void lwp_exit(void);
750 extern void lwp_pcb_exit(void);
751 extern void lwp_cleanup(void);
752 extern int lwp_suspend(kthread_t *);
753 extern void lwp_continue(kthread_t *);
754 extern void holdlwp(void);
755 extern void stoplwp(void);
756 extern int holdlwps(int);
757 extern int holdwatch(void);
758 extern void pokelwps(proc_t *);
759 extern void continuelwps(proc_t *);
760 extern int exitlwps(int);
761 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *);
762 extern void lwp_ctmpl_clear(klwp_t *);
763 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t);
764 extern void lwp_load(klwp_t *, gregset_t, uintptr_t);
765 extern void lwp_setrval(klwp_t *, int, int);
766 extern void lwp_forkregs(klwp_t *, klwp_t *);
767 extern void lwp_freeregs(klwp_t *, int);
768 extern caddr_t lwp_stk_init(klwp_t *, caddr_t);
769 extern void lwp_stk_cache_init(void);
770 extern void lwp_stk_fini(klwp_t *);
771 extern void lwp_installctx(klwp_t *);
772 extern void lwp_rtt(void);
773 extern void lwp_rtt_initial(void);
774 extern int lwp_setprivate(klwp_t *, int, uintptr_t);
775 extern void lwp_stat_update(lwp_stat_id_t, long);
776 extern void lwp_attach_brand_hdlrs(klwp_t *);
777 extern void lwp_detach_brand_hdlrs(klwp_t *);
778
779 #if defined(__sparcv9)
780 extern void lwp_mmodel_newlwp(void);
781 extern void lwp_mmodel_shared_as(caddr_t, size_t);
782 #define LWP_MMODEL_NEWLWP() lwp_mmodel_newlwp()
783 #define LWP_MMODEL_SHARED_AS(addr, sz) lwp_mmodel_shared_as((addr), (sz))
784 #else
785 #define LWP_MMODEL_NEWLWP()
786 #define LWP_MMODEL_SHARED_AS(addr, sz)
787 #endif
788
789 /* Security flag manipulation */
790 extern boolean_t secflag_enabled(proc_t *, uint_t);
791 extern void secflag_set(proc_t *, uint_t);
792 extern void secflag_enable(proc_t *, uint_t);
793 extern void secflag_disable(proc_t *, uint_t);
794 extern void secflag_promote(proc_t *);
795
796 /*
797 * Signal queue function prototypes. Must be here due to header ordering
798 * dependencies.
799 */
800 extern void sigqfree(proc_t *);
801 extern void siginfofree(sigqueue_t *);
802 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **);
803 extern void sigdelq(proc_t *, kthread_t *, int);
804 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int);
805 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *);
806 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *);
807 extern void sigdupq(proc_t *, proc_t *);
808 extern int sigwillqueue(int, int);
809 extern sigqhdr_t *sigqhdralloc(size_t, uint_t);
810 extern sigqueue_t *sigqalloc(sigqhdr_t *);
811 extern void sigqhdrfree(sigqhdr_t *);
812 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *,
813 k_sigset_t *, sigqueue_t *);
814 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *,
815 k_sigset_t *, sigqueue_t *);
816 extern void winfo(proc_t *, k_siginfo_t *, int);
817 extern int wstat(int, int);
818 extern int sendsig(int, k_siginfo_t *, void (*)());
819 #if defined(_SYSCALL32_IMPL)
820 extern int sendsig32(int, k_siginfo_t *, void (*)());
821 #endif
822
823 #endif /* _KERNEL */
824
825 #ifdef __cplusplus
826 }
827 #endif
828
829 #endif /* _SYS_PROC_H */