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6583 remove whole-process swapping
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--- old/usr/src/uts/common/sys/proc.h
+++ new/usr/src/uts/common/sys/proc.h
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 (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
24 24 */
25 25
26 26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
27 27 /* All Rights Reserved */
28 28
29 29 #ifndef _SYS_PROC_H
30 30 #define _SYS_PROC_H
31 31
32 32 #include <sys/time.h>
33 33 #include <sys/thread.h>
34 34 #include <sys/cred.h>
35 35 #include <sys/user.h>
36 36 #include <sys/watchpoint.h>
37 37 #include <sys/timer.h>
38 38 #if defined(__x86)
39 39 #include <sys/tss.h>
40 40 #include <sys/segments.h>
41 41 #endif
42 42 #include <sys/utrap.h>
43 43 #include <sys/model.h>
44 44 #include <sys/refstr.h>
45 45 #include <sys/avl.h>
46 46 #include <sys/rctl.h>
47 47 #include <sys/list.h>
48 48 #include <sys/avl.h>
49 49 #include <sys/door_impl.h>
50 50 #include <sys/signalfd.h>
51 51
52 52 #ifdef __cplusplus
53 53 extern "C" {
54 54 #endif
55 55
56 56 /*
57 57 * Profile arguments.
58 58 */
59 59 struct prof {
60 60 void *pr_base; /* buffer base */
61 61 uintptr_t pr_off; /* pc offset */
62 62 size_t pr_size; /* buffer size */
63 63 uint32_t pr_scale; /* pc scaling */
64 64 long pr_samples; /* sample count */
65 65 };
66 66
67 67 /*
68 68 * An lwp directory entry.
69 69 * If le_thread != NULL, this is an active lwp.
70 70 * If le_thread == NULL, this is an unreaped zombie lwp.
71 71 */
72 72 typedef struct lwpent {
73 73 kthread_t *le_thread; /* the active lwp, NULL if zombie */
74 74 id_t le_lwpid; /* its lwpid (t->t_tid) */
75 75 uint16_t le_waiters; /* total number of lwp_wait()ers */
76 76 uint16_t le_dwaiters; /* number that are daemons */
77 77 clock_t le_start; /* start time of this lwp */
78 78 struct vnode *le_trace; /* pointer to /proc lwp vnode */
79 79 } lwpent_t;
80 80
81 81 typedef struct pctxop {
82 82 void (*save_op)(void *); /* function to invoke to save ctx */
83 83 void (*restore_op)(void *); /* function to invoke to restore ctx */
84 84 void (*fork_op)(void *, void *); /* invoke to fork context */
85 85 void (*exit_op)(void *); /* invoked during process exit */
86 86 void (*free_op)(void *, int); /* function which frees the context */
87 87 void *arg; /* argument to above functions */
88 88 struct pctxop *next; /* next pcontext ops */
89 89 } pctxop_t;
90 90
91 91 /*
92 92 * Elements of the lwp directory, p->p_lwpdir[].
93 93 *
94 94 * We allocate lwp directory entries separately from lwp directory
95 95 * elements because the lwp directory must be allocated as an array.
96 96 * The number of lwps can grow quite large and we want to keep the
97 97 * size of the kmem_alloc()d directory as small as possible.
98 98 *
99 99 * If ld_entry == NULL, the entry is free and is on the free list,
100 100 * p->p_lwpfree, linked through ld_next. If ld_entry != NULL, the
101 101 * entry is used and ld_next is the thread-id hash link pointer.
102 102 */
103 103 typedef struct lwpdir {
104 104 struct lwpdir *ld_next; /* hash chain or free list */
105 105 struct lwpent *ld_entry; /* lwp directory entry */
106 106 } lwpdir_t;
107 107
108 108 /*
109 109 * Element of the p_tidhash thread-id (lwpid) hash table.
110 110 */
111 111 typedef struct tidhash {
112 112 kmutex_t th_lock;
113 113 lwpdir_t *th_list;
114 114 } tidhash_t;
115 115
116 116 /*
117 117 * Retired tidhash hash tables.
118 118 */
119 119 typedef struct ret_tidhash {
120 120 struct ret_tidhash *rth_next;
121 121 tidhash_t *rth_tidhash;
122 122 uint_t rth_tidhash_sz;
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122 lines elided |
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123 123 } ret_tidhash_t;
124 124
125 125 struct pool;
126 126 struct task;
127 127 struct zone;
128 128 struct brand;
129 129 struct corectl_path;
130 130 struct corectl_content;
131 131
132 132 /*
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.
133 + * One structure allocated per active process. Per-process data (user.h) is
134 + * also inside the proc structure.
137 135 */
138 136 typedef struct proc {
139 137 /*
140 138 * Fields requiring no explicit locking
141 139 */
142 140 struct vnode *p_exec; /* pointer to a.out vnode */
143 141 struct as *p_as; /* process address space pointer */
144 142 struct plock *p_lockp; /* ptr to proc struct's mutex lock */
145 143 kmutex_t p_crlock; /* lock for p_cred */
146 144 struct cred *p_cred; /* process credentials */
147 145 /*
148 146 * Fields protected by pidlock
149 147 */
150 - int p_swapcnt; /* number of swapped out lwps */
151 148 char p_stat; /* status of process */
152 149 char p_wcode; /* current wait code */
153 150 ushort_t p_pidflag; /* flags protected only by pidlock */
154 151 int p_wdata; /* current wait return value */
155 152 pid_t p_ppid; /* process id of parent */
156 153 struct proc *p_link; /* forward link */
157 154 struct proc *p_parent; /* ptr to parent process */
158 155 struct proc *p_child; /* ptr to first child process */
159 156 struct proc *p_sibling; /* ptr to next sibling proc on chain */
160 157 struct proc *p_psibling; /* ptr to prev sibling proc on chain */
161 158 struct proc *p_sibling_ns; /* prt to siblings with new state */
162 159 struct proc *p_child_ns; /* prt to children with new state */
163 160 struct proc *p_next; /* active chain link next */
164 161 struct proc *p_prev; /* active chain link prev */
165 162 struct proc *p_nextofkin; /* gets accounting info at exit */
166 163 struct proc *p_orphan;
167 164 struct proc *p_nextorph;
168 165 struct proc *p_pglink; /* process group hash chain link next */
169 166 struct proc *p_ppglink; /* process group hash chain link prev */
170 167 struct sess *p_sessp; /* session information */
171 168 struct pid *p_pidp; /* process ID info */
172 169 struct pid *p_pgidp; /* process group ID info */
173 170 /*
174 171 * Fields protected by p_lock
175 172 */
176 173 kcondvar_t p_cv; /* proc struct's condition variable */
177 174 kcondvar_t p_flag_cv;
178 175 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */
179 176 kcondvar_t p_holdlwps; /* process is waiting for its lwps */
180 177 /* to to be held. */
181 178 uint_t p_proc_flag; /* /proc-related flags */
182 179 uint_t p_flag; /* protected while set. */
183 180 /* flags defined below */
184 181 clock_t p_utime; /* user time, this process */
185 182 clock_t p_stime; /* system time, this process */
186 183 clock_t p_cutime; /* sum of children's user time */
187 184 clock_t p_cstime; /* sum of children's system time */
188 185 avl_tree_t *p_segacct; /* System V shared segment list */
189 186 avl_tree_t *p_semacct; /* System V semaphore undo list */
190 187 caddr_t p_bssbase; /* base addr of last bss below heap */
191 188 caddr_t p_brkbase; /* base addr of heap */
192 189 size_t p_brksize; /* heap size in bytes */
193 190 uint_t p_brkpageszc; /* preferred heap max page size code */
194 191 /*
195 192 * Per process signal stuff.
196 193 */
197 194 k_sigset_t p_sig; /* signals pending to this process */
198 195 k_sigset_t p_extsig; /* signals sent from another contract */
199 196 k_sigset_t p_ignore; /* ignore when generated */
200 197 k_sigset_t p_siginfo; /* gets signal info with signal */
201 198 void *p_sigfd; /* signalfd support state */
202 199 struct sigqueue *p_sigqueue; /* queued siginfo structures */
203 200 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */
204 201 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */
205 202 uchar_t p_stopsig; /* jobcontrol stop signal */
206 203
207 204 /*
208 205 * Special per-process flag when set will fix misaligned memory
209 206 * references.
210 207 */
211 208 char p_fixalignment;
212 209
213 210 /*
214 211 * Per process lwp and kernel thread stuff
215 212 */
216 213 id_t p_lwpid; /* most recently allocated lwpid */
217 214 int p_lwpcnt; /* number of lwps in this process */
218 215 int p_lwprcnt; /* number of not stopped lwps */
219 216 int p_lwpdaemon; /* number of TP_DAEMON lwps */
220 217 int p_lwpwait; /* number of lwps in lwp_wait() */
221 218 int p_lwpdwait; /* number of daemons in lwp_wait() */
222 219 int p_zombcnt; /* number of zombie lwps */
223 220 kthread_t *p_tlist; /* circular list of threads */
224 221 lwpdir_t *p_lwpdir; /* thread (lwp) directory */
225 222 lwpdir_t *p_lwpfree; /* p_lwpdir free list */
226 223 tidhash_t *p_tidhash; /* tid (lwpid) lookup hash table */
227 224 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */
228 225 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */
229 226 ret_tidhash_t *p_ret_tidhash; /* retired tidhash hash tables */
230 227 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */
231 228 /* on which process has threads */
232 229 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */
233 230 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */
234 231 #if defined(_LP64)
235 232 uintptr_t p_lgrpres2; /* reserved for lgrp migration */
236 233 #endif
237 234 /*
238 235 * /proc (process filesystem) debugger interface stuff.
239 236 */
240 237 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */
241 238 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */
242 239 struct vnode *p_trace; /* pointer to primary /proc vnode */
243 240 struct vnode *p_plist; /* list of /proc vnodes for process */
244 241 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */
245 242 avl_tree_t p_warea; /* list of watched areas */
246 243 avl_tree_t p_wpage; /* remembered watched pages (vfork) */
247 244 watched_page_t *p_wprot; /* pages that need to have prot set */
248 245 int p_mapcnt; /* number of active pr_mappage()s */
249 246 kmutex_t p_maplock; /* lock for pr_mappage() */
250 247 struct proc *p_rlink; /* linked list for server */
251 248 kcondvar_t p_srwchan_cv;
252 249 size_t p_stksize; /* process stack size in bytes */
253 250 uint_t p_stkpageszc; /* preferred stack max page size code */
254 251
255 252 /*
256 253 * Microstate accounting, resource usage, and real-time profiling
257 254 */
258 255 hrtime_t p_mstart; /* hi-res process start time */
259 256 hrtime_t p_mterm; /* hi-res process termination time */
260 257 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */
261 258 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */
262 259 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */
263 260 struct lrusage p_ru; /* lrusage sum over defunct lwps */
264 261 struct lrusage p_cru; /* lrusage sum over child procs */
265 262 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */
266 263 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */
267 264 uint_t p_defunct; /* number of defunct lwps */
268 265 /*
269 266 * profiling. A lock is used in the event of multiple lwp's
270 267 * using the same profiling base/size.
271 268 */
272 269 kmutex_t p_pflock; /* protects user profile arguments */
273 270 struct prof p_prof; /* profile arguments */
274 271
275 272 /*
276 273 * Doors.
277 274 */
278 275 door_pool_t p_server_threads; /* common thread pool */
279 276 struct door_node *p_door_list; /* active doors */
280 277 struct door_node *p_unref_list;
281 278 kcondvar_t p_unref_cv;
282 279 char p_unref_thread; /* unref thread created */
283 280
284 281 /*
285 282 * Kernel probes
286 283 */
287 284 uchar_t p_tnf_flags;
288 285
289 286 /*
290 287 * Solaris Audit
291 288 */
292 289 struct p_audit_data *p_audit_data; /* per process audit structure */
293 290
294 291 pctxop_t *p_pctx;
295 292
296 293 #if defined(__x86)
297 294 /*
298 295 * LDT support.
299 296 */
300 297 kmutex_t p_ldtlock; /* protects the following fields */
301 298 user_desc_t *p_ldt; /* Pointer to private LDT */
302 299 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */
303 300 ushort_t p_ldtlimit; /* highest selector used */
304 301 #endif
305 302 size_t p_swrss; /* resident set size before last swap */
306 303 struct aio *p_aio; /* pointer to async I/O struct */
307 304 struct itimer **p_itimer; /* interval timers */
308 305 timeout_id_t p_alarmid; /* alarm's timeout id */
309 306 caddr_t p_usrstack; /* top of the process stack */
310 307 uint_t p_stkprot; /* stack memory protection */
311 308 uint_t p_datprot; /* data memory protection */
312 309 model_t p_model; /* data model determined at exec time */
313 310 struct lwpchan_data *p_lcp; /* lwpchan cache */
314 311 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */
315 312 utrap_handler_t *p_utraps; /* pointer to user trap handlers */
316 313 struct corectl_path *p_corefile; /* pattern for core file */
317 314 struct task *p_task; /* our containing task */
318 315 struct proc *p_taskprev; /* ptr to previous process in task */
319 316 struct proc *p_tasknext; /* ptr to next process in task */
320 317 kmutex_t p_sc_lock; /* protects p_pagep */
321 318 struct sc_page_ctl *p_pagep; /* list of process's shared pages */
322 319 struct rctl_set *p_rctls; /* resource controls for this process */
323 320 rlim64_t p_stk_ctl; /* currently enforced stack size */
324 321 rlim64_t p_fsz_ctl; /* currently enforced file size */
325 322 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */
326 323 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */
327 324 pid_t p_ancpid; /* ancestor pid, used by exacct */
328 325 struct itimerval p_realitimer; /* real interval timer */
329 326 timeout_id_t p_itimerid; /* real interval timer's timeout id */
330 327 struct corectl_content *p_content; /* content of core file */
331 328
332 329 avl_tree_t p_ct_held; /* held contracts */
333 330 struct ct_equeue **p_ct_equeue; /* process-type event queues */
334 331
335 332 struct cont_process *p_ct_process; /* process contract */
336 333 list_node_t p_ct_member; /* process contract membership */
337 334 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */
338 335
339 336 int p_dtrace_probes; /* are there probes for this proc? */
340 337 uint64_t p_dtrace_count; /* number of DTrace tracepoints */
341 338 /* (protected by P_PR_LOCK) */
342 339 void *p_dtrace_helpers; /* DTrace helpers, if any */
343 340 struct pool *p_pool; /* pointer to containing pool */
344 341 kcondvar_t p_poolcv; /* synchronization with pools */
345 342 uint_t p_poolcnt; /* # threads inside pool barrier */
346 343 uint_t p_poolflag; /* pool-related flags (see below) */
347 344 uintptr_t p_portcnt; /* event ports counter */
348 345 struct zone *p_zone; /* zone in which process lives */
349 346 struct vnode *p_execdir; /* directory that p_exec came from */
350 347 struct brand *p_brand; /* process's brand */
351 348 void *p_brand_data; /* per-process brand state */
352 349
353 350 /* additional lock to protect p_sessp (but not its contents) */
354 351 kmutex_t p_splock;
355 352 rctl_qty_t p_locked_mem; /* locked memory charged to proc */
356 353 /* protected by p_lock */
357 354 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */
358 355 /* protected by p_lock */
359 356 clock_t p_ttime; /* buffered task time */
360 357
361 358 /*
362 359 * The user structure
363 360 */
364 361 struct user p_user; /* (see sys/user.h) */
365 362 } proc_t;
366 363
367 364 #define PROC_T /* headers relying on proc_t are OK */
368 365
369 366 #ifdef _KERNEL
370 367
371 368 /* active process chain */
372 369
373 370 extern proc_t *practive;
374 371
375 372 /* Well known processes */
376 373
377 374 extern proc_t *proc_sched; /* memory scheduler */
378 375 extern proc_t *proc_init; /* init */
379 376 extern proc_t *proc_pageout; /* pageout daemon */
380 377 extern proc_t *proc_fsflush; /* filesystem sync-er */
381 378
382 379 #endif /* _KERNEL */
383 380
384 381 /*
385 382 * Stuff to keep track of the number of processes each uid has.
386 383 * It is tracked on a per-zone basis; that is, if users in different
387 384 * zones have the same uid, they are tracked separately.
388 385 *
389 386 * A structure is allocated when a new <uid,zoneid> pair shows up
390 387 * There is a hash to find each structure.
391 388 */
392 389 struct upcount {
393 390 struct upcount *up_next;
394 391 uid_t up_uid;
395 392 zoneid_t up_zoneid;
396 393 uint_t up_count;
397 394 };
398 395
399 396 /* process ID info */
400 397
401 398 struct pid {
402 399 unsigned int pid_prinactive :1;
403 400 unsigned int pid_pgorphaned :1;
404 401 unsigned int pid_padding :6; /* used to be pid_ref, now an int */
405 402 unsigned int pid_prslot :24;
406 403 pid_t pid_id;
407 404 struct proc *pid_pglink;
408 405 struct proc *pid_pgtail;
409 406 struct pid *pid_link;
410 407 uint_t pid_ref;
411 408 };
412 409
413 410 #define p_pgrp p_pgidp->pid_id
414 411 #define p_pid p_pidp->pid_id
415 412 #define p_slot p_pidp->pid_prslot
416 413 #define p_detached p_pgidp->pid_pgorphaned
417 414
418 415 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
419 416 ++(pidp)->pid_ref;
420 417 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
421 418 (pidp)->pid_ref > 1 ? \
422 419 --(pidp)->pid_ref : pid_rele(pidp);
423 420
424 421 /*
425 422 * Structure containing persistent process lock. The structure and
426 423 * macro allow "mutex_enter(&p->p_lock)" to continue working.
427 424 */
428 425 struct plock {
429 426 kmutex_t pl_lock;
430 427 };
431 428 #define p_lock p_lockp->pl_lock
432 429
433 430 #ifdef _KERNEL
434 431 extern proc_t p0; /* process 0 */
435 432 extern struct plock p0lock; /* p0's plock */
436 433 extern struct pid pid0; /* p0's pid */
437 434
438 435 /* pid_allocate() flags */
439 436 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */
440 437
441 438 #endif /* _KERNEL */
442 439
443 440 /* stat codes */
444 441
445 442 #define SSLEEP 1 /* awaiting an event */
446 443 #define SRUN 2 /* runnable */
447 444 #define SZOMB 3 /* process terminated but not waited for */
448 445 #define SSTOP 4 /* process stopped by debugger */
449 446 #define SIDL 5 /* intermediate state in process creation */
450 447 #define SONPROC 6 /* process is being run on a processor */
451 448 #define SWAIT 7 /* process is waiting to become runnable */
452 449
453 450 /* p_pidflag codes */
454 451 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */
455 452 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */
456 453 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */
457 454 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */
458 455
459 456 /* p_proc_flag codes -- these flags are mostly private to /proc */
460 457 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */
461 458 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */
462 459 #define P_PR_FORK 0x0004 /* child inherits tracing flags */
463 460 #define P_PR_LOCK 0x0008 /* process locked by /proc */
464 461 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */
465 462 #define P_PR_EXEC 0x0020 /* process is in exec() */
466 463 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */
467 464 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */
468 465 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */
469 466
470 467 /*
471 468 * p_flag codes
472 469 *
473 470 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's
474 471 * psinfo_t.p_flag field. Historically, all were, but since they are
475 472 * implementation dependant, we only export the ones people have come to
476 473 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be
477 474 * altered.
478 475 */
479 476 #define SSYS 0x00000001 /* system (resident) process */
480 477 #define SEXITING 0x00000002 /* process is exiting */
481 478 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */
482 479 #define SFORKING 0x00000008 /* tells called functions that we're forking */
483 480 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */
484 481 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */
485 482 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */
486 483 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */
487 484 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */
488 485 #define SUGID 0x00002000 /* process was result of set[ug]id exec */
489 486 #define SEXECED 0x00004000 /* this process has execed */
490 487 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */
491 488 #define SNOWAIT 0x00020000 /* children never become zombies */
492 489 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */
493 490 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */
494 491 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */
495 492 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */
496 493 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */
497 494 #define SCOREDUMP 0x01000000 /* process is dumping core */
498 495 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */
499 496 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */
500 497 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */
501 498 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */
502 499 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */
503 500 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */
504 501 #define SDOCORE 0x80000000 /* process will attempt to dump core */
505 502
506 503 /*
507 504 * p_poolflag codes
508 505 *
509 506 * These flags are used to synchronize with the pool subsystem to allow
510 507 * re-binding of processes to new pools.
511 508 */
512 509 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */
513 510 #define PEXITED 0x0002 /* process exited and about to become zombie */
514 511
515 512 /* Macro to convert proc pointer to a user block pointer */
516 513 #define PTOU(p) (&(p)->p_user)
517 514
518 515 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig))
519 516
520 517 /* Macro to reduce unnecessary calls to issig() */
521 518
522 519 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why)
523 520
524 521 /*
525 522 * Fast version of ISSIG.
526 523 * 1. uses register pointers to lwp and proc instead of reloading them.
527 524 * 2. uses bit-wise OR of tests, since the usual case is that none of them
528 525 * are true, this saves orcc's and branches.
529 526 * 3. load the signal flags instead of using sigisempty() macro which does
530 527 * a branch to convert to boolean.
531 528 */
532 529 #define ISSIG_FAST(t, lwp, p, why) \
533 530 (ISSIG_PENDING(t, lwp, p) && issig(why))
534 531
535 532 #define ISSIG_PENDING(t, lwp, p) \
536 533 ((lwp)->lwp_cursig | \
537 534 sigcheck((p), (t)) | \
538 535 (p)->p_stopsig | \
539 536 (t)->t_dtrace_stop | \
540 537 (t)->t_dtrace_sig | \
541 538 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \
542 539 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH)))
543 540
544 541 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \
545 542 sigismember(&stopdefault, sig))
546 543
547 544 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK)
548 545
549 546 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale)
550 547
551 548 /*
552 549 * Determine if there are any watchpoints active in the process.
553 550 */
554 551 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0)
555 552
556 553 /* Reasons for calling issig() */
557 554
558 555 #define FORREAL 0 /* Usual side-effects */
559 556 #define JUSTLOOKING 1 /* Don't stop the process */
560 557
561 558 /* 'what' values for stop(PR_SUSPENDED, what) */
562 559 #define SUSPEND_NORMAL 0
563 560 #define SUSPEND_PAUSE 1
564 561
565 562 /* pseudo-flag to lwp_create() */
566 563 #define NOCLASS (-1)
567 564
568 565 /* unused scheduling class ID */
569 566 #define CLASS_UNUSED (-2)
570 567
571 568 /* LWP stats updated via lwp_stats_update() */
572 569 typedef enum {
573 570 LWP_STAT_INBLK,
574 571 LWP_STAT_OUBLK,
575 572 LWP_STAT_MSGRCV,
576 573 LWP_STAT_MSGSND
577 574 } lwp_stat_id_t;
578 575
579 576 typedef struct prkillinfo {
580 577 int32_t prk_error; /* errno */
581 578 int32_t prk_pad; /* pad */
582 579 siginfo_t prk_info; /* siginfo of killing signal */
583 580 } prkillinfo_t;
584 581
585 582 #ifdef _KERNEL
586 583
587 584 /* user profiling functions */
588 585
589 586 extern void profil_tick(uintptr_t);
590 587
591 588 /* process management functions */
592 589
593 590 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **, pid_t);
594 591 extern void vfwait(pid_t);
595 592 extern void proc_detach(proc_t *);
596 593 extern void freeproc(proc_t *);
597 594 extern void setrun(kthread_t *);
598 595 extern void setrun_locked(kthread_t *);
599 596 extern void exit(int, int);
600 597 extern int proc_exit(int, int);
601 598 extern void proc_is_exiting(proc_t *);
602 599 extern void relvm(void);
603 600 extern void add_ns(proc_t *, proc_t *);
604 601 extern void delete_ns(proc_t *, proc_t *);
605 602 extern void upcount_inc(uid_t, zoneid_t);
606 603 extern void upcount_dec(uid_t, zoneid_t);
607 604 extern int upcount_get(uid_t, zoneid_t);
608 605 #if defined(__x86)
609 606 extern selector_t setup_thrptr(proc_t *, uintptr_t);
610 607 extern void deferred_singlestep_trap(caddr_t);
611 608 #endif
612 609
613 610 extern void sigcld(proc_t *, sigqueue_t *);
614 611 extern void sigcld_delete(k_siginfo_t *);
615 612 extern void sigcld_repost(void);
616 613 extern int fsig(k_sigset_t *, kthread_t *);
617 614 extern void psig(void);
618 615 extern void stop(int, int);
619 616 extern int stop_on_fault(uint_t, k_siginfo_t *);
620 617 extern int issig(int);
621 618 extern int jobstopped(proc_t *);
622 619 extern void psignal(proc_t *, int);
623 620 extern void tsignal(kthread_t *, int);
624 621 extern void sigtoproc(proc_t *, kthread_t *, int);
625 622 extern void trapsig(k_siginfo_t *, int);
626 623 extern void realsigprof(int, int, int);
627 624 extern int eat_signal(kthread_t *, int);
628 625 extern int signal_is_blocked(kthread_t *, int);
629 626 extern int sigcheck(proc_t *, kthread_t *);
630 627 extern void sigdefault(proc_t *);
631 628
632 629 extern void pid_setmin(void);
633 630 extern pid_t pid_allocate(proc_t *, pid_t, int);
634 631 extern int pid_rele(struct pid *);
635 632 extern void pid_exit(proc_t *, struct task *);
636 633 extern void proc_entry_free(struct pid *);
637 634 extern proc_t *prfind(pid_t);
638 635 extern proc_t *prfind_zone(pid_t, zoneid_t);
639 636 extern proc_t *pgfind(pid_t);
640 637 extern proc_t *pgfind_zone(pid_t, zoneid_t);
641 638 extern proc_t *sprlock(pid_t);
642 639 extern proc_t *sprlock_zone(pid_t, zoneid_t);
643 640 extern int sprtrylock_proc(proc_t *);
644 641 extern void sprwaitlock_proc(proc_t *);
645 642 extern void sprlock_proc(proc_t *);
646 643 extern void sprunlock(proc_t *);
647 644 extern void pid_init(void);
648 645 extern proc_t *pid_entry(int);
649 646 extern int pid_slot(proc_t *);
650 647 extern void signal(pid_t, int);
651 648 extern void prsignal(struct pid *, int);
652 649 extern int uread(proc_t *, void *, size_t, uintptr_t);
653 650 extern int uwrite(proc_t *, void *, size_t, uintptr_t);
654 651
655 652 extern void pgsignal(struct pid *, int);
656 653 extern void pgjoin(proc_t *, struct pid *);
657 654 extern void pgcreate(proc_t *);
658 655 extern void pgexit(proc_t *);
659 656 extern void pgdetach(proc_t *);
660 657 extern int pgmembers(pid_t);
661 658
662 659 extern void init_mstate(kthread_t *, int);
663 660 extern int new_mstate(kthread_t *, int);
664 661 extern void restore_mstate(kthread_t *);
665 662 extern void term_mstate(kthread_t *);
666 663 extern void estimate_msacct(kthread_t *, hrtime_t);
667 664 extern void disable_msacct(proc_t *);
668 665 extern hrtime_t mstate_aggr_state(proc_t *, int);
669 666 extern hrtime_t mstate_thread_onproc_time(kthread_t *);
670 667 extern void mstate_systhread_times(kthread_t *, hrtime_t *, hrtime_t *);
671 668 extern void syscall_mstate(int, int);
672 669
673 670 extern uint_t cpu_update_pct(kthread_t *, hrtime_t);
674 671
675 672 extern void set_proc_pre_sys(proc_t *p);
676 673 extern void set_proc_post_sys(proc_t *p);
677 674 extern void set_proc_sys(proc_t *p);
678 675 extern void set_proc_ast(proc_t *p);
679 676 extern void set_all_proc_sys(void);
680 677 extern void set_all_zone_usr_proc_sys(zoneid_t);
681 678
682 679 /* thread function prototypes */
683 680
684 681 extern kthread_t *thread_create(
685 682 caddr_t stk,
686 683 size_t stksize,
687 684 void (*proc)(),
688 685 void *arg,
689 686 size_t len,
690 687 proc_t *pp,
691 688 int state,
692 689 pri_t pri);
693 690 extern void thread_exit(void) __NORETURN;
694 691 extern void thread_free(kthread_t *);
695 692 extern void thread_rele(kthread_t *);
696 693 extern void thread_join(kt_did_t);
697 694 extern int reaper(void);
698 695 extern void installctx(kthread_t *, void *, void (*)(), void (*)(),
699 696 void (*)(), void (*)(), void (*)(), void (*)());
700 697 extern int removectx(kthread_t *, void *, void (*)(), void (*)(),
701 698 void (*)(), void (*)(), void (*)(), void (*)());
702 699 extern void savectx(kthread_t *);
703 700 extern void restorectx(kthread_t *);
704 701 extern void forkctx(kthread_t *, kthread_t *);
705 702 extern void lwp_createctx(kthread_t *, kthread_t *);
706 703 extern void exitctx(kthread_t *);
707 704 extern void freectx(kthread_t *, int);
708 705 extern void installpctx(proc_t *, void *, void (*)(), void (*)(),
709 706 void (*)(), void (*)(), void (*)());
710 707 extern int removepctx(proc_t *, void *, void (*)(), void (*)(),
711 708 void (*)(), void (*)(), void (*)());
712 709 extern void savepctx(proc_t *);
713 710 extern void restorepctx(proc_t *);
714 711 extern void forkpctx(proc_t *, proc_t *);
715 712 extern void exitpctx(proc_t *);
716 713 extern void freepctx(proc_t *, int);
717 714 extern kthread_t *thread_unpin(void);
718 715 extern void thread_init(void);
719 716 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t);
720 717
721 718 extern void tsd_create(uint_t *, void (*)(void *));
722 719 extern void tsd_destroy(uint_t *);
723 720 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void));
724 721 extern void *tsd_get(uint_t);
725 722 extern int tsd_set(uint_t, void *);
726 723 extern void tsd_exit(void);
727 724 extern void *tsd_agent_get(kthread_t *, uint_t);
728 725 extern int tsd_agent_set(kthread_t *, uint_t, void *);
729 726
730 727 /* lwp function prototypes */
731 728
732 729 extern kthread_t *lwp_kernel_create(proc_t *, void (*)(), void *, int, pri_t);
733 730 extern klwp_t *lwp_create(
734 731 void (*proc)(),
735 732 caddr_t arg,
736 733 size_t len,
737 734 proc_t *p,
738 735 int state,
739 736 int pri,
740 737 const k_sigset_t *smask,
741 738 int cid,
742 739 id_t lwpid);
743 740 extern kthread_t *idtot(proc_t *, id_t);
744 741 extern void lwp_hash_in(proc_t *, lwpent_t *, tidhash_t *, uint_t, int);
745 742 extern void lwp_hash_out(proc_t *, id_t);
746 743 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t);
747 744 extern lwpdir_t *lwp_hash_lookup_and_lock(proc_t *, id_t, kmutex_t **);
748 745 extern void lwp_create_done(kthread_t *);
749 746 extern void lwp_exit(void);
750 747 extern void lwp_pcb_exit(void);
751 748 extern void lwp_cleanup(void);
752 749 extern int lwp_suspend(kthread_t *);
753 750 extern void lwp_continue(kthread_t *);
754 751 extern void holdlwp(void);
755 752 extern void stoplwp(void);
756 753 extern int holdlwps(int);
757 754 extern int holdwatch(void);
758 755 extern void pokelwps(proc_t *);
759 756 extern void continuelwps(proc_t *);
760 757 extern int exitlwps(int);
761 758 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *);
762 759 extern void lwp_ctmpl_clear(klwp_t *);
763 760 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t);
764 761 extern void lwp_load(klwp_t *, gregset_t, uintptr_t);
765 762 extern void lwp_setrval(klwp_t *, int, int);
766 763 extern void lwp_forkregs(klwp_t *, klwp_t *);
767 764 extern void lwp_freeregs(klwp_t *, int);
768 765 extern caddr_t lwp_stk_init(klwp_t *, caddr_t);
769 766 extern void lwp_stk_cache_init(void);
770 767 extern void lwp_stk_fini(klwp_t *);
771 768 extern void lwp_installctx(klwp_t *);
772 769 extern void lwp_rtt(void);
773 770 extern void lwp_rtt_initial(void);
774 771 extern int lwp_setprivate(klwp_t *, int, uintptr_t);
775 772 extern void lwp_stat_update(lwp_stat_id_t, long);
776 773 extern void lwp_attach_brand_hdlrs(klwp_t *);
777 774 extern void lwp_detach_brand_hdlrs(klwp_t *);
778 775
779 776 #if defined(__sparcv9)
780 777 extern void lwp_mmodel_newlwp(void);
781 778 extern void lwp_mmodel_shared_as(caddr_t, size_t);
782 779 #define LWP_MMODEL_NEWLWP() lwp_mmodel_newlwp()
783 780 #define LWP_MMODEL_SHARED_AS(addr, sz) lwp_mmodel_shared_as((addr), (sz))
784 781 #else
785 782 #define LWP_MMODEL_NEWLWP()
786 783 #define LWP_MMODEL_SHARED_AS(addr, sz)
787 784 #endif
788 785
789 786 /*
790 787 * Signal queue function prototypes. Must be here due to header ordering
791 788 * dependencies.
792 789 */
793 790 extern void sigqfree(proc_t *);
794 791 extern void siginfofree(sigqueue_t *);
795 792 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **);
796 793 extern void sigdelq(proc_t *, kthread_t *, int);
797 794 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int);
798 795 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *);
799 796 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *);
800 797 extern void sigdupq(proc_t *, proc_t *);
801 798 extern int sigwillqueue(int, int);
802 799 extern sigqhdr_t *sigqhdralloc(size_t, uint_t);
803 800 extern sigqueue_t *sigqalloc(sigqhdr_t *);
804 801 extern void sigqhdrfree(sigqhdr_t *);
805 802 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *,
806 803 k_sigset_t *, sigqueue_t *);
807 804 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *,
808 805 k_sigset_t *, sigqueue_t *);
809 806 extern void winfo(proc_t *, k_siginfo_t *, int);
810 807 extern int wstat(int, int);
811 808 extern int sendsig(int, k_siginfo_t *, void (*)());
812 809 #if defined(_SYSCALL32_IMPL)
813 810 extern int sendsig32(int, k_siginfo_t *, void (*)());
814 811 #endif
815 812
816 813 #endif /* _KERNEL */
817 814
818 815 #ifdef __cplusplus
819 816 }
820 817 #endif
821 818
822 819 #endif /* _SYS_PROC_H */
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