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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
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13 lines elided |
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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 - * Copyright (c) 2015 Joyent, Inc. All rights reserved.
24 + * Copyright (c) 2014 Joyent, Inc. All rights reserved.
25 25 */
26 26
27 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 28 /* All Rights Reserved */
29 29
30 30 #ifndef _SYS_PROC_H
31 31 #define _SYS_PROC_H
32 32
33 33 #include <sys/time.h>
34 34 #include <sys/thread.h>
35 35 #include <sys/cred.h>
36 36 #include <sys/user.h>
37 37 #include <sys/watchpoint.h>
38 38 #include <sys/timer.h>
39 39 #if defined(__x86)
40 40 #include <sys/tss.h>
41 41 #include <sys/segments.h>
42 42 #endif
43 43 #include <sys/utrap.h>
44 44 #include <sys/model.h>
45 45 #include <sys/refstr.h>
46 46 #include <sys/avl.h>
47 47 #include <sys/rctl.h>
48 48 #include <sys/list.h>
49 49 #include <sys/avl.h>
50 50 #include <sys/door_impl.h>
51 51 #include <sys/signalfd.h>
52 52
53 53 #ifdef __cplusplus
54 54 extern "C" {
55 55 #endif
56 56
57 57 /*
58 58 * Profile arguments.
59 59 */
60 60 struct prof {
61 61 void *pr_base; /* buffer base */
62 62 uintptr_t pr_off; /* pc offset */
63 63 size_t pr_size; /* buffer size */
64 64 uint32_t pr_scale; /* pc scaling */
65 65 long pr_samples; /* sample count */
66 66 };
67 67
68 68 /*
69 69 * An lwp directory entry.
70 70 * If le_thread != NULL, this is an active lwp.
71 71 * If le_thread == NULL, this is an unreaped zombie lwp.
72 72 */
73 73 typedef struct lwpent {
74 74 kthread_t *le_thread; /* the active lwp, NULL if zombie */
75 75 id_t le_lwpid; /* its lwpid (t->t_tid) */
76 76 uint16_t le_waiters; /* total number of lwp_wait()ers */
77 77 uint16_t le_dwaiters; /* number that are daemons */
78 78 clock_t le_start; /* start time of this lwp */
79 79 struct vnode *le_trace; /* pointer to /proc lwp vnode */
80 80 } lwpent_t;
81 81
82 82 typedef struct pctxop {
83 83 void (*save_op)(void *); /* function to invoke to save ctx */
84 84 void (*restore_op)(void *); /* function to invoke to restore ctx */
85 85 void (*fork_op)(void *, void *); /* invoke to fork context */
86 86 void (*exit_op)(void *); /* invoked during process exit */
87 87 void (*free_op)(void *, int); /* function which frees the context */
88 88 void *arg; /* argument to above functions */
89 89 struct pctxop *next; /* next pcontext ops */
90 90 } pctxop_t;
91 91
92 92 /*
93 93 * Elements of the lwp directory, p->p_lwpdir[].
94 94 *
95 95 * We allocate lwp directory entries separately from lwp directory
96 96 * elements because the lwp directory must be allocated as an array.
97 97 * The number of lwps can grow quite large and we want to keep the
98 98 * size of the kmem_alloc()d directory as small as possible.
99 99 *
100 100 * If ld_entry == NULL, the entry is free and is on the free list,
101 101 * p->p_lwpfree, linked through ld_next. If ld_entry != NULL, the
102 102 * entry is used and ld_next is the thread-id hash link pointer.
103 103 */
104 104 typedef struct lwpdir {
105 105 struct lwpdir *ld_next; /* hash chain or free list */
106 106 struct lwpent *ld_entry; /* lwp directory entry */
107 107 } lwpdir_t;
108 108
109 109 /*
110 110 * Element of the p_tidhash thread-id (lwpid) hash table.
111 111 */
112 112 typedef struct tidhash {
113 113 kmutex_t th_lock;
114 114 lwpdir_t *th_list;
115 115 } tidhash_t;
116 116
117 117 /*
118 118 * Retired tidhash hash tables.
119 119 */
120 120 typedef struct ret_tidhash {
121 121 struct ret_tidhash *rth_next;
122 122 tidhash_t *rth_tidhash;
123 123 uint_t rth_tidhash_sz;
124 124 } ret_tidhash_t;
125 125
126 126 struct pool;
127 127 struct task;
128 128 struct zone;
129 129 struct brand;
130 130 struct corectl_path;
131 131 struct corectl_content;
132 132
133 133 /*
134 134 * One structure allocated per active process. It contains all
135 135 * data needed about the process while the process may be swapped
136 136 * out. Other per-process data (user.h) is also inside the proc structure.
137 137 * Lightweight-process data (lwp.h) and the kernel stack may be swapped out.
138 138 */
139 139 typedef struct proc {
140 140 /*
141 141 * Fields requiring no explicit locking
142 142 */
143 143 struct vnode *p_exec; /* pointer to a.out vnode */
144 144 struct as *p_as; /* process address space pointer */
145 145 struct plock *p_lockp; /* ptr to proc struct's mutex lock */
146 146 kmutex_t p_crlock; /* lock for p_cred */
147 147 struct cred *p_cred; /* process credentials */
148 148 /*
149 149 * Fields protected by pidlock
150 150 */
151 151 int p_swapcnt; /* number of swapped out lwps */
152 152 char p_stat; /* status of process */
153 153 char p_wcode; /* current wait code */
154 154 ushort_t p_pidflag; /* flags protected only by pidlock */
155 155 int p_wdata; /* current wait return value */
156 156 pid_t p_ppid; /* process id of parent */
157 157 struct proc *p_link; /* forward link */
158 158 struct proc *p_parent; /* ptr to parent process */
159 159 struct proc *p_child; /* ptr to first child process */
160 160 struct proc *p_sibling; /* ptr to next sibling proc on chain */
161 161 struct proc *p_psibling; /* ptr to prev sibling proc on chain */
162 162 struct proc *p_sibling_ns; /* prt to siblings with new state */
163 163 struct proc *p_child_ns; /* prt to children with new state */
164 164 struct proc *p_next; /* active chain link next */
165 165 struct proc *p_prev; /* active chain link prev */
166 166 struct proc *p_nextofkin; /* gets accounting info at exit */
167 167 struct proc *p_orphan;
168 168 struct proc *p_nextorph;
169 169 struct proc *p_pglink; /* process group hash chain link next */
170 170 struct proc *p_ppglink; /* process group hash chain link prev */
171 171 struct sess *p_sessp; /* session information */
172 172 struct pid *p_pidp; /* process ID info */
173 173 struct pid *p_pgidp; /* process group ID info */
174 174 /*
175 175 * Fields protected by p_lock
176 176 */
177 177 kcondvar_t p_cv; /* proc struct's condition variable */
178 178 kcondvar_t p_flag_cv;
179 179 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */
180 180 kcondvar_t p_holdlwps; /* process is waiting for its lwps */
181 181 /* to to be held. */
182 182 uint_t p_proc_flag; /* /proc-related flags */
183 183 uint_t p_flag; /* protected while set. */
184 184 /* flags defined below */
185 185 clock_t p_utime; /* user time, this process */
186 186 clock_t p_stime; /* system time, this process */
187 187 clock_t p_cutime; /* sum of children's user time */
188 188 clock_t p_cstime; /* sum of children's system time */
189 189 avl_tree_t *p_segacct; /* System V shared segment list */
190 190 avl_tree_t *p_semacct; /* System V semaphore undo list */
191 191 caddr_t p_bssbase; /* base addr of last bss below heap */
192 192 caddr_t p_brkbase; /* base addr of heap */
193 193 size_t p_brksize; /* heap size in bytes */
194 194 uint_t p_brkpageszc; /* preferred heap max page size code */
195 195 /*
196 196 * Per process signal stuff.
197 197 */
198 198 k_sigset_t p_sig; /* signals pending to this process */
199 199 k_sigset_t p_extsig; /* signals sent from another contract */
200 200 k_sigset_t p_ignore; /* ignore when generated */
201 201 k_sigset_t p_siginfo; /* gets signal info with signal */
202 202 void *p_sigfd; /* signalfd support state */
203 203 struct sigqueue *p_sigqueue; /* queued siginfo structures */
204 204 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */
205 205 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */
206 206 uchar_t p_stopsig; /* jobcontrol stop signal */
207 207
208 208 /*
209 209 * Special per-process flag when set will fix misaligned memory
210 210 * references.
211 211 */
212 212 char p_fixalignment;
213 213
214 214 /*
215 215 * Per process lwp and kernel thread stuff
216 216 */
217 217 id_t p_lwpid; /* most recently allocated lwpid */
218 218 int p_lwpcnt; /* number of lwps in this process */
219 219 int p_lwprcnt; /* number of not stopped lwps */
220 220 int p_lwpdaemon; /* number of TP_DAEMON lwps */
221 221 int p_lwpwait; /* number of lwps in lwp_wait() */
222 222 int p_lwpdwait; /* number of daemons in lwp_wait() */
223 223 int p_zombcnt; /* number of zombie lwps */
224 224 kthread_t *p_tlist; /* circular list of threads */
225 225 lwpdir_t *p_lwpdir; /* thread (lwp) directory */
226 226 lwpdir_t *p_lwpfree; /* p_lwpdir free list */
227 227 tidhash_t *p_tidhash; /* tid (lwpid) lookup hash table */
228 228 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */
229 229 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */
230 230 ret_tidhash_t *p_ret_tidhash; /* retired tidhash hash tables */
231 231 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */
232 232 /* on which process has threads */
233 233 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */
234 234 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */
235 235 #if defined(_LP64)
236 236 uintptr_t p_lgrpres2; /* reserved for lgrp migration */
237 237 #endif
238 238 /*
239 239 * /proc (process filesystem) debugger interface stuff.
240 240 */
241 241 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */
242 242 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */
243 243 struct vnode *p_trace; /* pointer to primary /proc vnode */
244 244 struct vnode *p_plist; /* list of /proc vnodes for process */
245 245 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */
246 246 avl_tree_t p_warea; /* list of watched areas */
247 247 avl_tree_t p_wpage; /* remembered watched pages (vfork) */
248 248 watched_page_t *p_wprot; /* pages that need to have prot set */
249 249 int p_mapcnt; /* number of active pr_mappage()s */
250 250 kmutex_t p_maplock; /* lock for pr_mappage() */
251 251 struct proc *p_rlink; /* linked list for server */
252 252 kcondvar_t p_srwchan_cv;
253 253 size_t p_stksize; /* process stack size in bytes */
254 254 uint_t p_stkpageszc; /* preferred stack max page size code */
255 255
256 256 /*
257 257 * Microstate accounting, resource usage, and real-time profiling
258 258 */
259 259 hrtime_t p_mstart; /* hi-res process start time */
260 260 hrtime_t p_mterm; /* hi-res process termination time */
261 261 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */
262 262 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */
263 263 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */
264 264 struct lrusage p_ru; /* lrusage sum over defunct lwps */
265 265 struct lrusage p_cru; /* lrusage sum over child procs */
266 266 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */
267 267 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */
268 268 uint_t p_defunct; /* number of defunct lwps */
269 269 /*
270 270 * profiling. A lock is used in the event of multiple lwp's
271 271 * using the same profiling base/size.
272 272 */
273 273 kmutex_t p_pflock; /* protects user profile arguments */
274 274 struct prof p_prof; /* profile arguments */
275 275
276 276 /*
277 277 * Doors.
278 278 */
279 279 door_pool_t p_server_threads; /* common thread pool */
280 280 struct door_node *p_door_list; /* active doors */
281 281 struct door_node *p_unref_list;
282 282 kcondvar_t p_unref_cv;
283 283 char p_unref_thread; /* unref thread created */
284 284
285 285 /*
286 286 * Kernel probes
287 287 */
288 288 uchar_t p_tnf_flags;
289 289
290 290 /*
291 291 * Solaris Audit
292 292 */
293 293 struct p_audit_data *p_audit_data; /* per process audit structure */
294 294
295 295 pctxop_t *p_pctx;
296 296
297 297 #if defined(__x86)
298 298 /*
299 299 * LDT support.
300 300 */
301 301 kmutex_t p_ldtlock; /* protects the following fields */
302 302 user_desc_t *p_ldt; /* Pointer to private LDT */
303 303 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */
304 304 ushort_t p_ldtlimit; /* highest selector used */
305 305 #endif
306 306 size_t p_swrss; /* resident set size before last swap */
307 307 struct aio *p_aio; /* pointer to async I/O struct */
308 308 struct itimer **p_itimer; /* interval timers */
309 309 timeout_id_t p_alarmid; /* alarm's timeout id */
310 310 caddr_t p_usrstack; /* top of the process stack */
311 311 uint_t p_stkprot; /* stack memory protection */
312 312 uint_t p_datprot; /* data memory protection */
313 313 model_t p_model; /* data model determined at exec time */
314 314 struct lwpchan_data *p_lcp; /* lwpchan cache */
315 315 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */
316 316 utrap_handler_t *p_utraps; /* pointer to user trap handlers */
317 317 struct corectl_path *p_corefile; /* pattern for core file */
318 318 struct task *p_task; /* our containing task */
319 319 struct proc *p_taskprev; /* ptr to previous process in task */
320 320 struct proc *p_tasknext; /* ptr to next process in task */
321 321 kmutex_t p_sc_lock; /* protects p_pagep */
322 322 struct sc_page_ctl *p_pagep; /* list of process's shared pages */
323 323 struct rctl_set *p_rctls; /* resource controls for this process */
324 324 rlim64_t p_stk_ctl; /* currently enforced stack size */
325 325 rlim64_t p_fsz_ctl; /* currently enforced file size */
326 326 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */
327 327 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */
328 328 pid_t p_ancpid; /* ancestor pid, used by exacct */
329 329 struct itimerval p_realitimer; /* real interval timer */
330 330 timeout_id_t p_itimerid; /* real interval timer's timeout id */
331 331 struct corectl_content *p_content; /* content of core file */
332 332
333 333 avl_tree_t p_ct_held; /* held contracts */
334 334 struct ct_equeue **p_ct_equeue; /* process-type event queues */
335 335
336 336 struct cont_process *p_ct_process; /* process contract */
337 337 list_node_t p_ct_member; /* process contract membership */
338 338 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */
339 339
340 340 int p_dtrace_probes; /* are there probes for this proc? */
341 341 uint64_t p_dtrace_count; /* number of DTrace tracepoints */
342 342 /* (protected by P_PR_LOCK) */
343 343 void *p_dtrace_helpers; /* DTrace helpers, if any */
344 344 struct pool *p_pool; /* pointer to containing pool */
345 345 kcondvar_t p_poolcv; /* synchronization with pools */
346 346 uint_t p_poolcnt; /* # threads inside pool barrier */
347 347 uint_t p_poolflag; /* pool-related flags (see below) */
348 348 uintptr_t p_portcnt; /* event ports counter */
349 349 struct zone *p_zone; /* zone in which process lives */
350 350 struct vnode *p_execdir; /* directory that p_exec came from */
351 351 struct brand *p_brand; /* process's brand */
352 352
353 353 /* per-process brand state */
354 354 void *p_brand_data;
355 355
356 356 /* additional lock to protect p_sessp (but not its contents) */
357 357 kmutex_t p_splock;
358 358 rctl_qty_t p_locked_mem; /* locked memory charged to proc */
359 359 /* protected by p_lock */
360 360 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */
361 361 /* protected by p_lock */
362 362 clock_t p_ttime; /* buffered task time */
363 363
364 364 /*
365 365 * The user structure
366 366 */
367 367 struct user p_user; /* (see sys/user.h) */
368 368 } proc_t;
369 369 #define PROC_T /* headers relying on proc_t are OK */
370 370
371 371 #ifdef _KERNEL
372 372
373 373 /* active process chain */
374 374
375 375 extern proc_t *practive;
376 376
377 377 /* Well known processes */
378 378
379 379 extern proc_t *proc_sched; /* memory scheduler */
380 380 extern proc_t *proc_init; /* init */
381 381 extern proc_t *proc_pageout; /* pageout daemon */
382 382 extern proc_t *proc_fsflush; /* filesystem sync-er */
383 383
384 384 #endif /* _KERNEL */
385 385
386 386 /*
387 387 * Stuff to keep track of the number of processes each uid has.
388 388 * It is tracked on a per-zone basis; that is, if users in different
389 389 * zones have the same uid, they are tracked separately.
390 390 *
391 391 * A structure is allocated when a new <uid,zoneid> pair shows up
392 392 * There is a hash to find each structure.
393 393 */
394 394 struct upcount {
395 395 struct upcount *up_next;
396 396 uid_t up_uid;
397 397 zoneid_t up_zoneid;
398 398 uint_t up_count;
399 399 };
400 400
401 401 /* process ID info */
402 402
403 403 struct pid {
404 404 unsigned int pid_prinactive :1;
405 405 unsigned int pid_pgorphaned :1;
406 406 unsigned int pid_padding :6; /* used to be pid_ref, now an int */
407 407 unsigned int pid_prslot :24;
408 408 pid_t pid_id;
409 409 struct proc *pid_pglink;
410 410 struct proc *pid_pgtail;
411 411 struct pid *pid_link;
412 412 uint_t pid_ref;
413 413 };
414 414
415 415 #define p_pgrp p_pgidp->pid_id
416 416 #define p_pid p_pidp->pid_id
417 417 #define p_slot p_pidp->pid_prslot
418 418 #define p_detached p_pgidp->pid_pgorphaned
419 419
420 420 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
421 421 ++(pidp)->pid_ref;
422 422 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
423 423 (pidp)->pid_ref > 1 ? \
424 424 --(pidp)->pid_ref : pid_rele(pidp);
425 425
426 426 /*
427 427 * Structure containing persistent process lock. The structure and
428 428 * macro allow "mutex_enter(&p->p_lock)" to continue working.
429 429 */
430 430 struct plock {
431 431 kmutex_t pl_lock;
432 432 };
433 433 #define p_lock p_lockp->pl_lock
434 434
435 435 #ifdef _KERNEL
436 436 extern proc_t p0; /* process 0 */
437 437 extern struct plock p0lock; /* p0's plock */
438 438 extern struct pid pid0; /* p0's pid */
439 439
440 440 /* pid_allocate() flags */
441 441 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */
442 442
443 443 #endif /* _KERNEL */
444 444
445 445 /* stat codes */
446 446
447 447 #define SSLEEP 1 /* awaiting an event */
448 448 #define SRUN 2 /* runnable */
449 449 #define SZOMB 3 /* process terminated but not waited for */
450 450 #define SSTOP 4 /* process stopped by debugger */
451 451 #define SIDL 5 /* intermediate state in process creation */
452 452 #define SONPROC 6 /* process is being run on a processor */
453 453 #define SWAIT 7 /* process is waiting to become runnable */
454 454
455 455 /* p_pidflag codes */
456 456 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */
457 457 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */
458 458 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */
459 459 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */
460 460
461 461 /* p_proc_flag codes -- these flags are mostly private to /proc */
462 462 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */
463 463 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */
464 464 #define P_PR_FORK 0x0004 /* child inherits tracing flags */
465 465 #define P_PR_LOCK 0x0008 /* process locked by /proc */
466 466 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */
467 467 #define P_PR_EXEC 0x0020 /* process is in exec() */
468 468 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */
469 469 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */
470 470 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */
471 471
472 472 /*
473 473 * p_flag codes
474 474 *
475 475 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's
476 476 * psinfo_t.p_flag field. Historically, all were, but since they are
477 477 * implementation dependant, we only export the ones people have come to
478 478 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be
479 479 * altered.
480 480 */
481 481 #define SSYS 0x00000001 /* system (resident) process */
482 482 #define SEXITING 0x00000002 /* process is exiting */
483 483 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */
484 484 #define SFORKING 0x00000008 /* tells called functions that we're forking */
485 485 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */
486 486 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */
487 487 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */
488 488 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */
489 489 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */
490 490 #define SUGID 0x00002000 /* process was result of set[ug]id exec */
491 491 #define SEXECED 0x00004000 /* this process has execed */
492 492 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */
493 493 #define SNOWAIT 0x00020000 /* children never become zombies */
494 494 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */
495 495 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */
496 496 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */
497 497 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */
498 498 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */
499 499 #define SCOREDUMP 0x01000000 /* process is dumping core */
500 500 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */
501 501 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */
502 502 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */
503 503 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */
504 504 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */
505 505 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */
506 506 #define SDOCORE 0x80000000 /* process will attempt to dump core */
507 507
508 508 /*
509 509 * p_poolflag codes
510 510 *
511 511 * These flags are used to synchronize with the pool subsystem to allow
512 512 * re-binding of processes to new pools.
513 513 */
514 514 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */
515 515 #define PEXITED 0x0002 /* process exited and about to become zombie */
516 516
517 517 /* Macro to convert proc pointer to a user block pointer */
518 518 #define PTOU(p) (&(p)->p_user)
519 519
520 520 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig))
521 521
522 522 /* Macro to reduce unnecessary calls to issig() */
523 523
524 524 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why)
525 525
526 526 /*
527 527 * Fast version of ISSIG.
528 528 * 1. uses register pointers to lwp and proc instead of reloading them.
529 529 * 2. uses bit-wise OR of tests, since the usual case is that none of them
530 530 * are true, this saves orcc's and branches.
531 531 * 3. load the signal flags instead of using sigisempty() macro which does
532 532 * a branch to convert to boolean.
533 533 */
534 534 #define ISSIG_FAST(t, lwp, p, why) \
535 535 (ISSIG_PENDING(t, lwp, p) && issig(why))
536 536
537 537 #define ISSIG_PENDING(t, lwp, p) \
538 538 ((lwp)->lwp_cursig | \
539 539 sigcheck((p), (t)) | \
540 540 (p)->p_stopsig | \
541 541 (t)->t_dtrace_stop | \
542 542 (t)->t_dtrace_sig | \
543 543 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \
544 544 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH)))
545 545
546 546 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \
547 547 sigismember(&stopdefault, sig))
548 548
549 549 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK)
550 550
551 551 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale)
552 552
553 553 /*
554 554 * Determine if there are any watchpoints active in the process.
555 555 */
556 556 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0)
557 557
558 558 /* Reasons for calling issig() */
559 559
560 560 #define FORREAL 0 /* Usual side-effects */
561 561 #define JUSTLOOKING 1 /* Don't stop the process */
562 562
563 563 /* 'what' values for stop(PR_SUSPENDED, what) */
564 564 #define SUSPEND_NORMAL 0
565 565 #define SUSPEND_PAUSE 1
566 566
567 567 /* pseudo-flag to lwp_create() */
568 568 #define NOCLASS (-1)
569 569
570 570 /* unused scheduling class ID */
571 571 #define CLASS_UNUSED (-2)
572 572
573 573 /* LWP stats updated via lwp_stats_update() */
574 574 typedef enum {
575 575 LWP_STAT_INBLK,
576 576 LWP_STAT_OUBLK,
577 577 LWP_STAT_MSGRCV,
578 578 LWP_STAT_MSGSND
579 579 } lwp_stat_id_t;
580 580
581 581 typedef struct prkillinfo {
582 582 int32_t prk_error; /* errno */
583 583 int32_t prk_pad; /* pad */
584 584 siginfo_t prk_info; /* siginfo of killing signal */
585 585 } prkillinfo_t;
586 586
587 587 #ifdef _KERNEL
588 588
589 589 /* user profiling functions */
590 590
591 591 extern void profil_tick(uintptr_t);
592 592
593 593 /* process management functions */
594 594
595 595 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **, pid_t);
596 596 extern void vfwait(pid_t);
597 597 extern void proc_detach(proc_t *);
598 598 extern void freeproc(proc_t *);
599 599 extern void setrun(kthread_t *);
600 600 extern void setrun_locked(kthread_t *);
601 601 extern void exit(int, int);
602 602 extern int proc_exit(int, int);
603 603 extern void proc_is_exiting(proc_t *);
604 604 extern void relvm(void);
605 605 extern void add_ns(proc_t *, proc_t *);
606 606 extern void delete_ns(proc_t *, proc_t *);
607 607 extern void upcount_inc(uid_t, zoneid_t);
608 608 extern void upcount_dec(uid_t, zoneid_t);
609 609 extern int upcount_get(uid_t, zoneid_t);
610 610 #if defined(__x86)
611 611 extern selector_t setup_thrptr(proc_t *, uintptr_t);
612 612 extern void deferred_singlestep_trap(caddr_t);
613 613 #endif
614 614
615 615 extern void sigcld(proc_t *, sigqueue_t *);
616 616 extern void sigcld_delete(k_siginfo_t *);
617 617 extern void sigcld_repost(void);
618 618 extern int fsig(k_sigset_t *, kthread_t *);
619 619 extern void psig(void);
620 620 extern void stop(int, int);
621 621 extern int stop_on_fault(uint_t, k_siginfo_t *);
622 622 extern int issig(int);
623 623 extern int jobstopped(proc_t *);
624 624 extern void psignal(proc_t *, int);
625 625 extern void tsignal(kthread_t *, int);
626 626 extern void sigtoproc(proc_t *, kthread_t *, int);
627 627 extern void trapsig(k_siginfo_t *, int);
628 628 extern void realsigprof(int, int, int);
629 629 extern int eat_signal(kthread_t *, int);
630 630 extern int signal_is_blocked(kthread_t *, int);
631 631 extern int sigcheck(proc_t *, kthread_t *);
632 632 extern void sigdefault(proc_t *);
633 633
634 634 extern struct pid *pid_find(pid_t pid);
635 635 extern void pid_setmin(void);
636 636 extern pid_t pid_allocate(proc_t *, pid_t, int);
637 637 extern int pid_rele(struct pid *);
638 638 extern void pid_exit(proc_t *, struct task *);
639 639 extern void proc_entry_free(struct pid *);
640 640 extern proc_t *prfind(pid_t);
641 641 extern proc_t *prfind_zone(pid_t, zoneid_t);
642 642 extern proc_t *pgfind(pid_t);
643 643 extern proc_t *pgfind_zone(pid_t, zoneid_t);
644 644 extern proc_t *sprlock(pid_t);
645 645 extern proc_t *sprlock_zone(pid_t, zoneid_t);
646 646 extern int sprtrylock_proc(proc_t *);
647 647 extern void sprwaitlock_proc(proc_t *);
648 648 extern void sprlock_proc(proc_t *);
649 649 extern void sprunlock(proc_t *);
650 650 extern void sprunprlock(proc_t *);
651 651 extern void pid_init(void);
652 652 extern proc_t *pid_entry(int);
653 653 extern int pid_slot(proc_t *);
654 654 extern void signal(pid_t, int);
655 655 extern void prsignal(struct pid *, int);
656 656 extern int uread(proc_t *, void *, size_t, uintptr_t);
657 657 extern int uwrite(proc_t *, void *, size_t, uintptr_t);
658 658
659 659 extern void pgsignal(struct pid *, int);
660 660 extern void pgjoin(proc_t *, struct pid *);
661 661 extern void pgcreate(proc_t *);
662 662 extern void pgexit(proc_t *);
663 663 extern void pgdetach(proc_t *);
664 664 extern int pgmembers(pid_t);
665 665
666 666 extern void init_mstate(kthread_t *, int);
667 667 extern int new_mstate(kthread_t *, int);
668 668 extern void restore_mstate(kthread_t *);
669 669 extern void term_mstate(kthread_t *);
670 670 extern void estimate_msacct(kthread_t *, hrtime_t);
671 671 extern void disable_msacct(proc_t *);
672 672 extern hrtime_t mstate_aggr_state(proc_t *, int);
673 673 extern hrtime_t mstate_thread_onproc_time(kthread_t *);
674 674 extern void mstate_systhread_times(kthread_t *, hrtime_t *, hrtime_t *);
675 675 extern void syscall_mstate(int, int);
676 676
677 677 extern uint_t cpu_update_pct(kthread_t *, hrtime_t);
678 678
679 679 extern void set_proc_pre_sys(proc_t *p);
680 680 extern void set_proc_post_sys(proc_t *p);
681 681 extern void set_proc_sys(proc_t *p);
682 682 extern void set_proc_ast(proc_t *p);
683 683 extern void set_all_proc_sys(void);
684 684 extern void set_all_zone_usr_proc_sys(zoneid_t);
685 685
686 686 /* thread function prototypes */
687 687
688 688 extern kthread_t *thread_create(
689 689 caddr_t stk,
690 690 size_t stksize,
691 691 void (*proc)(),
692 692 void *arg,
693 693 size_t len,
694 694 proc_t *pp,
695 695 int state,
696 696 pri_t pri);
697 697 extern void thread_exit(void) __NORETURN;
698 698 extern void thread_free(kthread_t *);
699 699 extern void thread_rele(kthread_t *);
700 700 extern void thread_join(kt_did_t);
701 701 extern int reaper(void);
702 702 extern void installctx(kthread_t *, void *, void (*)(), void (*)(),
703 703 void (*)(), void (*)(), void (*)(), void (*)());
704 704 extern int removectx(kthread_t *, void *, void (*)(), void (*)(),
705 705 void (*)(), void (*)(), void (*)(), void (*)());
706 706 extern void savectx(kthread_t *);
707 707 extern void restorectx(kthread_t *);
708 708 extern void forkctx(kthread_t *, kthread_t *);
709 709 extern void lwp_createctx(kthread_t *, kthread_t *);
710 710 extern void exitctx(kthread_t *);
711 711 extern void freectx(kthread_t *, int);
712 712 extern void installpctx(proc_t *, void *, void (*)(), void (*)(),
713 713 void (*)(), void (*)(), void (*)());
714 714 extern int removepctx(proc_t *, void *, void (*)(), void (*)(),
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715 715 void (*)(), void (*)(), void (*)());
716 716 extern void savepctx(proc_t *);
717 717 extern void restorepctx(proc_t *);
718 718 extern void forkpctx(proc_t *, proc_t *);
719 719 extern void exitpctx(proc_t *);
720 720 extern void freepctx(proc_t *, int);
721 721 extern kthread_t *thread_unpin(void);
722 722 extern void thread_init(void);
723 723 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t);
724 724
725 -extern void thread_splitstack(void (*)(void *), void *, size_t);
726 -extern void thread_splitstack_run(caddr_t, void (*)(void *), void *);
727 -extern void thread_splitstack_cleanup(void);
728 -
729 725 extern void tsd_create(uint_t *, void (*)(void *));
730 726 extern void tsd_destroy(uint_t *);
731 727 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void));
732 728 extern void *tsd_get(uint_t);
733 729 extern int tsd_set(uint_t, void *);
734 730 extern void tsd_exit(void);
735 731 extern void *tsd_agent_get(kthread_t *, uint_t);
736 732 extern int tsd_agent_set(kthread_t *, uint_t, void *);
737 733
738 734 /* lwp function prototypes */
739 735
740 736 extern kthread_t *lwp_kernel_create(proc_t *, void (*)(), void *, int, pri_t);
741 737 extern klwp_t *lwp_create(
742 738 void (*proc)(),
743 739 caddr_t arg,
744 740 size_t len,
745 741 proc_t *p,
746 742 int state,
747 743 int pri,
748 744 const k_sigset_t *smask,
749 745 int cid,
750 746 id_t lwpid);
751 747 extern kthread_t *idtot(proc_t *, id_t);
752 748 extern void lwp_hash_in(proc_t *, lwpent_t *, tidhash_t *, uint_t, int);
753 749 extern void lwp_hash_out(proc_t *, id_t);
754 750 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t);
755 751 extern lwpdir_t *lwp_hash_lookup_and_lock(proc_t *, id_t, kmutex_t **);
756 752 extern void lwp_create_done(kthread_t *);
757 753 extern void lwp_exit(void);
758 754 extern void lwp_pcb_exit(void);
759 755 extern void lwp_cleanup(void);
760 756 extern int lwp_suspend(kthread_t *);
761 757 extern void lwp_continue(kthread_t *);
762 758 extern void holdlwp(void);
763 759 extern void stoplwp(void);
764 760 extern int holdlwps(int);
765 761 extern int holdwatch(void);
766 762 extern void pokelwps(proc_t *);
767 763 extern void continuelwps(proc_t *);
768 764 extern int exitlwps(int);
769 765 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *);
770 766 extern void lwp_ctmpl_clear(klwp_t *, boolean_t);
771 767 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t);
772 768 extern void lwp_load(klwp_t *, gregset_t, uintptr_t);
773 769 extern void lwp_setrval(klwp_t *, int, int);
774 770 extern void lwp_forkregs(klwp_t *, klwp_t *);
775 771 extern void lwp_freeregs(klwp_t *, int);
776 772 extern caddr_t lwp_stk_init(klwp_t *, caddr_t);
777 773 extern void lwp_stk_cache_init(void);
778 774 extern void lwp_stk_fini(klwp_t *);
779 775 extern void lwp_installctx(klwp_t *);
780 776 extern void lwp_rtt(void);
781 777 extern void lwp_rtt_initial(void);
782 778 extern int lwp_setprivate(klwp_t *, int, uintptr_t);
783 779 extern void lwp_stat_update(lwp_stat_id_t, long);
784 780 extern void lwp_attach_brand_hdlrs(klwp_t *);
785 781 extern void lwp_detach_brand_hdlrs(klwp_t *);
786 782
787 783 #if defined(__sparcv9)
788 784 extern void lwp_mmodel_newlwp(void);
789 785 extern void lwp_mmodel_shared_as(caddr_t, size_t);
790 786 #define LWP_MMODEL_NEWLWP() lwp_mmodel_newlwp()
791 787 #define LWP_MMODEL_SHARED_AS(addr, sz) lwp_mmodel_shared_as((addr), (sz))
792 788 #else
793 789 #define LWP_MMODEL_NEWLWP()
794 790 #define LWP_MMODEL_SHARED_AS(addr, sz)
795 791 #endif
796 792
797 793 /*
798 794 * Signal queue function prototypes. Must be here due to header ordering
799 795 * dependencies.
800 796 */
801 797 extern void sigqfree(proc_t *);
802 798 extern void siginfofree(sigqueue_t *);
803 799 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **);
804 800 extern void sigdelq(proc_t *, kthread_t *, int);
805 801 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int);
806 802 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *);
807 803 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *);
808 804 extern void sigdupq(proc_t *, proc_t *);
809 805 extern int sigwillqueue(int, int);
810 806 extern sigqhdr_t *sigqhdralloc(size_t, uint_t);
811 807 extern sigqueue_t *sigqalloc(sigqhdr_t *);
812 808 extern void sigqhdrfree(sigqhdr_t *);
813 809 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *,
814 810 k_sigset_t *, sigqueue_t *);
815 811 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *,
816 812 k_sigset_t *, sigqueue_t *);
817 813 extern void winfo(proc_t *, k_siginfo_t *, int);
818 814 extern int wstat(int, int);
819 815 extern int sendsig(int, k_siginfo_t *, void (*)());
820 816 #if defined(_SYSCALL32_IMPL)
821 817 extern int sendsig32(int, k_siginfo_t *, void (*)());
822 818 #endif
823 819
824 820 #endif /* _KERNEL */
825 821
826 822 #ifdef __cplusplus
827 823 }
828 824 #endif
829 825
830 826 #endif /* _SYS_PROC_H */
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