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 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #ifndef _SYS_PROC_H 31 #define _SYS_PROC_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #include <sys/time.h> 36 37 #include <sys/thread.h> 38 #include <sys/cred.h> 39 #include <sys/user.h> 40 #include <sys/watchpoint.h> 41 #include <sys/timer.h> 42 #if defined(__x86) 43 #include <sys/tss.h> 44 #include <sys/segments.h> 45 #endif 46 #include <sys/utrap.h> 47 #include <sys/model.h> 48 #include <sys/refstr.h> 49 #include <sys/avl.h> 50 #include <sys/rctl.h> 51 #include <sys/list.h> 52 #include <sys/avl.h> 53 #include <sys/door_impl.h> 54 55 #ifdef __cplusplus 56 extern "C" { 57 #endif 58 59 /* 60 * Profile arguments. 61 */ 62 struct prof { 63 void *pr_base; /* buffer base */ 64 uintptr_t pr_off; /* pc offset */ 65 size_t pr_size; /* buffer size */ 66 uint32_t pr_scale; /* pc scaling */ 67 long pr_samples; /* sample count */ 68 }; 69 70 /* hash function for the lwpid hash table, p->p_tidhash[] */ 71 #define TIDHASH(p, tid) ((tid) & ((p)->p_tidhash_sz - 1)) 72 73 /* 74 * An lwp directory entry. 75 * If le_thread != NULL, this is an active lwp. 76 * If le_thread == NULL, this is an unreaped zombie lwp. 77 */ 78 typedef struct lwpent { 79 kthread_t *le_thread; /* the active lwp, NULL if zombie */ 80 id_t le_lwpid; /* its lwpid (t->t_tid) */ 81 uint16_t le_waiters; /* total number of lwp_wait()ers */ 82 uint16_t le_dwaiters; /* number that are daemons */ 83 clock_t le_start; /* start time of this lwp */ 84 struct vnode *le_trace; /* pointer to /proc lwp vnode */ 85 } lwpent_t; 86 87 typedef struct pctxop { 88 void (*save_op)(void *); /* function to invoke to save ctx */ 89 void (*restore_op)(void *); /* function to invoke to restore ctx */ 90 void (*fork_op)(void *, void *); /* invoke to fork context */ 91 void (*exit_op)(void *); /* invoked during process exit */ 92 void (*free_op)(void *, int); /* function which frees the context */ 93 void *arg; /* argument to above functions */ 94 struct pctxop *next; /* next pcontext ops */ 95 } pctxop_t; 96 97 /* 98 * Elements of the lwp directory, p->p_lwpdir[]. 99 * 100 * We allocate lwp directory entries separately from lwp directory 101 * elements because the lwp directory must be allocated as an array. 102 * The number of lwps can grow quite large and we want to keep the 103 * size of the kmem_alloc()d directory as small as possible. 104 * 105 * If ld_entry == NULL, the entry is free and is on the free list, 106 * p->p_lwpfree, linked through ld_next. If ld_entry != NULL, the 107 * entry is used and ld_next is the thread-id hash link pointer. 108 */ 109 typedef struct lwpdir { 110 struct lwpdir *ld_next; /* hash chain or free list */ 111 struct lwpent *ld_entry; /* lwp directory entry */ 112 } lwpdir_t; 113 114 struct pool; 115 struct task; 116 struct zone; 117 struct brand; 118 struct corectl_path; 119 struct corectl_content; 120 121 /* 122 * One structure allocated per active process. It contains all 123 * data needed about the process while the process may be swapped 124 * out. Other per-process data (user.h) is also inside the proc structure. 125 * Lightweight-process data (lwp.h) and the kernel stack may be swapped out. 126 */ 127 typedef struct proc { 128 /* 129 * Fields requiring no explicit locking 130 */ 131 struct vnode *p_exec; /* pointer to a.out vnode */ 132 struct as *p_as; /* process address space pointer */ 133 struct plock *p_lockp; /* ptr to proc struct's mutex lock */ 134 kmutex_t p_crlock; /* lock for p_cred */ 135 struct cred *p_cred; /* process credentials */ 136 /* 137 * Fields protected by pidlock 138 */ 139 int p_swapcnt; /* number of swapped out lwps */ 140 char p_stat; /* status of process */ 141 char p_wcode; /* current wait code */ 142 ushort_t p_pidflag; /* flags protected only by pidlock */ 143 int p_wdata; /* current wait return value */ 144 pid_t p_ppid; /* process id of parent */ 145 struct proc *p_link; /* forward link */ 146 struct proc *p_parent; /* ptr to parent process */ 147 struct proc *p_child; /* ptr to first child process */ 148 struct proc *p_sibling; /* ptr to next sibling proc on chain */ 149 struct proc *p_psibling; /* ptr to prev sibling proc on chain */ 150 struct proc *p_sibling_ns; /* prt to siblings with new state */ 151 struct proc *p_child_ns; /* prt to children with new state */ 152 struct proc *p_next; /* active chain link next */ 153 struct proc *p_prev; /* active chain link prev */ 154 struct proc *p_nextofkin; /* gets accounting info at exit */ 155 struct proc *p_orphan; 156 struct proc *p_nextorph; 157 struct proc *p_pglink; /* process group hash chain link next */ 158 struct proc *p_ppglink; /* process group hash chain link prev */ 159 struct sess *p_sessp; /* session information */ 160 struct pid *p_pidp; /* process ID info */ 161 struct pid *p_pgidp; /* process group ID info */ 162 /* 163 * Fields protected by p_lock 164 */ 165 kcondvar_t p_cv; /* proc struct's condition variable */ 166 kcondvar_t p_flag_cv; 167 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */ 168 kcondvar_t p_holdlwps; /* process is waiting for its lwps */ 169 /* to to be held. */ 170 uint_t p_proc_flag; /* /proc-related flags */ 171 uint_t p_flag; /* protected while set. */ 172 /* flags defined below */ 173 clock_t p_utime; /* user time, this process */ 174 clock_t p_stime; /* system time, this process */ 175 clock_t p_cutime; /* sum of children's user time */ 176 clock_t p_cstime; /* sum of children's system time */ 177 avl_tree_t *p_segacct; /* System V shared segment list */ 178 avl_tree_t *p_semacct; /* System V semaphore undo list */ 179 caddr_t p_bssbase; /* base addr of last bss below heap */ 180 caddr_t p_brkbase; /* base addr of heap */ 181 size_t p_brksize; /* heap size in bytes */ 182 uint_t p_brkpageszc; /* preferred heap max page size code */ 183 /* 184 * Per process signal stuff. 185 */ 186 k_sigset_t p_sig; /* signals pending to this process */ 187 k_sigset_t p_extsig; /* signals sent from another contract */ 188 k_sigset_t p_ignore; /* ignore when generated */ 189 k_sigset_t p_siginfo; /* gets signal info with signal */ 190 struct sigqueue *p_sigqueue; /* queued siginfo structures */ 191 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */ 192 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */ 193 uchar_t p_stopsig; /* jobcontrol stop signal */ 194 195 /* 196 * Special per-process flag when set will fix misaligned memory 197 * references. 198 */ 199 char p_fixalignment; 200 201 /* 202 * Per process lwp and kernel thread stuff 203 */ 204 id_t p_lwpid; /* most recently allocated lwpid */ 205 int p_lwpcnt; /* number of lwps in this process */ 206 int p_lwprcnt; /* number of not stopped lwps */ 207 int p_lwpdaemon; /* number of TP_DAEMON lwps */ 208 int p_lwpwait; /* number of lwps in lwp_wait() */ 209 int p_lwpdwait; /* number of daemons in lwp_wait() */ 210 int p_zombcnt; /* number of zombie lwps */ 211 kthread_t *p_tlist; /* circular list of threads */ 212 lwpdir_t *p_lwpdir; /* thread (lwp) directory */ 213 lwpdir_t *p_lwpfree; /* p_lwpdir free list */ 214 lwpdir_t **p_tidhash; /* tid (lwpid) lookup hash table */ 215 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */ 216 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */ 217 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */ 218 /* on which process has threads */ 219 uintptr_t p_lgrpres1; /* reserved for lgrp migration */ 220 uintptr_t p_lgrpres2; /* reserved for lgrp migration */ 221 /* 222 * /proc (process filesystem) debugger interface stuff. 223 */ 224 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */ 225 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */ 226 struct vnode *p_trace; /* pointer to primary /proc vnode */ 227 struct vnode *p_plist; /* list of /proc vnodes for process */ 228 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */ 229 avl_tree_t p_warea; /* list of watched areas */ 230 avl_tree_t p_wpage; /* remembered watched pages (vfork) */ 231 watched_page_t *p_wprot; /* pages that need to have prot set */ 232 int p_mapcnt; /* number of active pr_mappage()s */ 233 kmutex_t p_maplock; /* lock for pr_mappage() */ 234 struct proc *p_rlink; /* linked list for server */ 235 kcondvar_t p_srwchan_cv; 236 size_t p_stksize; /* process stack size in bytes */ 237 uint_t p_stkpageszc; /* preferred stack max page size code */ 238 239 /* 240 * Microstate accounting, resource usage, and real-time profiling 241 */ 242 hrtime_t p_mstart; /* hi-res process start time */ 243 hrtime_t p_mterm; /* hi-res process termination time */ 244 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */ 245 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */ 246 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */ 247 struct lrusage p_ru; /* lrusage sum over defunct lwps */ 248 struct lrusage p_cru; /* lrusage sum over child procs */ 249 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */ 250 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */ 251 uint_t p_defunct; /* number of defunct lwps */ 252 /* 253 * profiling. A lock is used in the event of multiple lwp's 254 * using the same profiling base/size. 255 */ 256 kmutex_t p_pflock; /* protects user profile arguments */ 257 struct prof p_prof; /* profile arguments */ 258 259 /* 260 * The user structure 261 */ 262 struct user p_user; /* (see sys/user.h) */ 263 264 /* 265 * Doors. 266 */ 267 door_pool_t p_server_threads; /* common thread pool */ 268 struct door_node *p_door_list; /* active doors */ 269 struct door_node *p_unref_list; 270 kcondvar_t p_unref_cv; 271 char p_unref_thread; /* unref thread created */ 272 273 /* 274 * Kernel probes 275 */ 276 uchar_t p_tnf_flags; 277 278 /* 279 * C2 Security (C2_AUDIT) 280 */ 281 struct p_audit_data *p_audit_data; /* per process audit structure */ 282 283 pctxop_t *p_pctx; 284 285 #if defined(__x86) 286 /* 287 * LDT support. 288 */ 289 kmutex_t p_ldtlock; /* protects the following fields */ 290 user_desc_t *p_ldt; /* Pointer to private LDT */ 291 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */ 292 ushort_t p_ldtlimit; /* highest selector used */ 293 #endif 294 size_t p_swrss; /* resident set size before last swap */ 295 struct aio *p_aio; /* pointer to async I/O struct */ 296 struct itimer **p_itimer; /* interval timers */ 297 timeout_id_t p_alarmid; /* alarm's timeout id */ 298 caddr_t p_usrstack; /* top of the process stack */ 299 uint_t p_stkprot; /* stack memory protection */ 300 uint_t p_datprot; /* data memory protection */ 301 model_t p_model; /* data model determined at exec time */ 302 struct lwpchan_data *p_lcp; /* lwpchan cache */ 303 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */ 304 utrap_handler_t *p_utraps; /* pointer to user trap handlers */ 305 struct corectl_path *p_corefile; /* pattern for core file */ 306 struct task *p_task; /* our containing task */ 307 struct proc *p_taskprev; /* ptr to previous process in task */ 308 struct proc *p_tasknext; /* ptr to next process in task */ 309 kmutex_t p_sc_lock; /* protects p_pagep */ 310 struct sc_page_ctl *p_pagep; /* list of process's shared pages */ 311 struct rctl_set *p_rctls; /* resource controls for this process */ 312 rlim64_t p_stk_ctl; /* currently enforced stack size */ 313 rlim64_t p_fsz_ctl; /* currently enforced file size */ 314 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */ 315 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */ 316 pid_t p_ancpid; /* ancestor pid, used by exacct */ 317 struct itimerval p_realitimer; /* real interval timer */ 318 timeout_id_t p_itimerid; /* real interval timer's timeout id */ 319 struct corectl_content *p_content; /* content of core file */ 320 321 avl_tree_t p_ct_held; /* held contracts */ 322 struct ct_equeue **p_ct_equeue; /* process-type event queues */ 323 324 struct cont_process *p_ct_process; /* process contract */ 325 list_node_t p_ct_member; /* process contract membership */ 326 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */ 327 328 int p_dtrace_probes; /* are there probes for this proc? */ 329 uint64_t p_dtrace_count; /* number of DTrace tracepoints */ 330 /* (protected by P_PR_LOCK) */ 331 void *p_dtrace_helpers; /* DTrace helpers, if any */ 332 struct pool *p_pool; /* pointer to containing pool */ 333 kcondvar_t p_poolcv; /* synchronization with pools */ 334 uint_t p_poolcnt; /* # threads inside pool barrier */ 335 uint_t p_poolflag; /* pool-related flags (see below) */ 336 uintptr_t p_portcnt; /* event ports counter */ 337 struct zone *p_zone; /* zone in which process lives */ 338 struct vnode *p_execdir; /* directory that p_exec came from */ 339 struct brand *p_brand; /* process's brand */ 340 void *p_brand_data; /* per-process brand state */ 341 342 /* additional lock to protect p_sessp (but not its contents) */ 343 kmutex_t p_splock; 344 rctl_qty_t p_locked_mem; /* locked memory charged to proc */ 345 /* protected by p_lock */ 346 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */ 347 /* protected by p_lock */ 348 } proc_t; 349 350 #define PROC_T /* headers relying on proc_t are OK */ 351 352 #ifdef _KERNEL 353 354 /* active process chain */ 355 356 extern proc_t *practive; 357 358 /* Well known processes */ 359 360 extern proc_t *proc_sched; /* memory scheduler */ 361 extern proc_t *proc_init; /* init */ 362 extern proc_t *proc_pageout; /* pageout daemon */ 363 extern proc_t *proc_fsflush; /* filesystem sync-er */ 364 365 #endif /* _KERNEL */ 366 367 /* 368 * Stuff to keep track of the number of processes each uid has. 369 * It is tracked on a per-zone basis; that is, if users in different 370 * zones have the same uid, they are tracked separately. 371 * 372 * A structure is allocated when a new <uid,zoneid> pair shows up 373 * There is a hash to find each structure. 374 */ 375 struct upcount { 376 struct upcount *up_next; 377 uid_t up_uid; 378 zoneid_t up_zoneid; 379 uint_t up_count; 380 }; 381 382 /* process ID info */ 383 384 struct pid { 385 unsigned int pid_prinactive :1; 386 unsigned int pid_pgorphaned :1; 387 unsigned int pid_padding :6; /* used to be pid_ref, now an int */ 388 unsigned int pid_prslot :24; 389 pid_t pid_id; 390 struct proc *pid_pglink; 391 struct proc *pid_pgtail; 392 struct pid *pid_link; 393 uint_t pid_ref; 394 }; 395 396 #define p_pgrp p_pgidp->pid_id 397 #define p_pid p_pidp->pid_id 398 #define p_slot p_pidp->pid_prslot 399 #define p_detached p_pgidp->pid_pgorphaned 400 401 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 402 ++(pidp)->pid_ref; 403 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 404 (pidp)->pid_ref > 1 ? \ 405 --(pidp)->pid_ref : pid_rele(pidp); 406 407 /* 408 * Structure containing persistent process lock. The structure and 409 * macro allow "mutex_enter(&p->p_lock)" to continue working. 410 */ 411 struct plock { 412 kmutex_t pl_lock; 413 }; 414 #define p_lock p_lockp->pl_lock 415 416 #ifdef _KERNEL 417 extern proc_t p0; /* process 0 */ 418 extern struct plock p0lock; /* p0's plock */ 419 extern struct pid pid0; /* p0's pid */ 420 421 /* pid_allocate() flags */ 422 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */ 423 424 #endif /* _KERNEL */ 425 426 /* stat codes */ 427 428 #define SSLEEP 1 /* awaiting an event */ 429 #define SRUN 2 /* runnable */ 430 #define SZOMB 3 /* process terminated but not waited for */ 431 #define SSTOP 4 /* process stopped by debugger */ 432 #define SIDL 5 /* intermediate state in process creation */ 433 #define SONPROC 6 /* process is being run on a processor */ 434 #define SWAIT 7 /* process is waiting to become runnable */ 435 436 /* p_pidflag codes */ 437 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */ 438 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */ 439 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */ 440 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */ 441 442 /* p_proc_flag codes -- these flags are mostly private to /proc */ 443 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */ 444 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */ 445 #define P_PR_FORK 0x0004 /* child inherits tracing flags */ 446 #define P_PR_LOCK 0x0008 /* process locked by /proc */ 447 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */ 448 #define P_PR_EXEC 0x0020 /* process is in exec() */ 449 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */ 450 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */ 451 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */ 452 453 /* 454 * p_flag codes 455 * 456 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's 457 * psinfo_t.p_flag field. Historically, all were, but since they are 458 * implementation dependant, we only export the ones people have come to 459 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be 460 * altered. 461 */ 462 #define SSYS 0x00000001 /* system (resident) process */ 463 #define SEXITING 0x00000002 /* process is exiting */ 464 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */ 465 #define SFORKING 0x00000008 /* tells called functions that we're forking */ 466 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */ 467 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */ 468 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */ 469 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */ 470 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */ 471 #define SUGID 0x00002000 /* process was result of set[ug]id exec */ 472 #define SEXECED 0x00004000 /* this process has execed */ 473 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */ 474 #define SNOWAIT 0x00020000 /* children never become zombies */ 475 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */ 476 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */ 477 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */ 478 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */ 479 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */ 480 #define SCOREDUMP 0x01000000 /* process is dumping core */ 481 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */ 482 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */ 483 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */ 484 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */ 485 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */ 486 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */ 487 #define SDOCORE 0x80000000 /* process will attempt to dump core */ 488 489 /* 490 * p_poolflag codes 491 * 492 * These flags are used to synchronize with the pool subsystem to allow 493 * re-binding of processes to new pools. 494 */ 495 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */ 496 #define PEXITED 0x0002 /* process exited and about to become zombie */ 497 498 /* Macro to convert proc pointer to a user block pointer */ 499 #define PTOU(p) (&(p)->p_user) 500 501 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig)) 502 503 /* Macro to reduce unnecessary calls to issig() */ 504 505 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why) 506 507 /* 508 * Fast version of ISSIG. 509 * 1. uses register pointers to lwp and proc instead of reloading them. 510 * 2. uses bit-wise OR of tests, since the usual case is that none of them 511 * are true, this saves orcc's and branches. 512 * 3. load the signal flags instead of using sigisempty() macro which does 513 * a branch to convert to boolean. 514 */ 515 #define ISSIG_FAST(t, lwp, p, why) \ 516 (ISSIG_PENDING(t, lwp, p) && issig(why)) 517 518 #define ISSIG_PENDING(t, lwp, p) \ 519 ((lwp)->lwp_cursig | \ 520 sigcheck((p), (t)) | \ 521 (p)->p_stopsig | \ 522 (t)->t_dtrace_stop | \ 523 (t)->t_dtrace_sig | \ 524 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \ 525 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH))) 526 527 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \ 528 sigismember(&stopdefault, sig)) 529 530 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK) 531 532 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale) 533 534 /* 535 * Determine if there are any watchpoints active in the process. 536 */ 537 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0) 538 539 /* Reasons for calling issig() */ 540 541 #define FORREAL 0 /* Usual side-effects */ 542 #define JUSTLOOKING 1 /* Don't stop the process */ 543 544 /* 'what' values for stop(PR_SUSPENDED, what) */ 545 #define SUSPEND_NORMAL 0 546 #define SUSPEND_PAUSE 1 547 548 /* pseudo-flag to lwp_create() */ 549 #define NOCLASS (-1) 550 551 /* LWP stats updated via lwp_stats_update() */ 552 typedef enum { 553 LWP_STAT_INBLK, 554 LWP_STAT_OUBLK, 555 LWP_STAT_MSGRCV, 556 LWP_STAT_MSGSND 557 } lwp_stat_id_t; 558 559 #ifdef _KERNEL 560 561 /* user profiling functions */ 562 563 extern void profil_tick(uintptr_t); 564 565 /* process management functions */ 566 567 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **); 568 extern void vfwait(pid_t); 569 extern void proc_detach(proc_t *); 570 extern void freeproc(proc_t *); 571 extern void setrun(kthread_t *); 572 extern void setrun_locked(kthread_t *); 573 extern void exit(int, int); 574 extern int proc_exit(int, int); 575 extern void proc_is_exiting(proc_t *); 576 extern void relvm(void); 577 extern void add_ns(proc_t *, proc_t *); 578 extern void delete_ns(proc_t *, proc_t *); 579 extern void upcount_inc(uid_t, zoneid_t); 580 extern void upcount_dec(uid_t, zoneid_t); 581 extern int upcount_get(uid_t, zoneid_t); 582 #if defined(__x86) 583 extern void ldt_dup(proc_t *, proc_t *); 584 extern selector_t setup_thrptr(proc_t *, uintptr_t); 585 extern void deferred_singlestep_trap(caddr_t); 586 #endif 587 588 extern void sigcld(proc_t *, sigqueue_t *); 589 extern void sigcld_delete(k_siginfo_t *); 590 extern void sigcld_repost(void); 591 extern int fsig(k_sigset_t *, kthread_t *); 592 extern void psig(void); 593 extern void stop(int, int); 594 extern int stop_on_fault(uint_t, k_siginfo_t *); 595 extern int issig(int); 596 extern int jobstopped(proc_t *); 597 extern void psignal(proc_t *, int); 598 extern void tsignal(kthread_t *, int); 599 extern void sigtoproc(proc_t *, kthread_t *, int); 600 extern void trapsig(k_siginfo_t *, int); 601 extern int eat_signal(kthread_t *, int); 602 extern int signal_is_blocked(kthread_t *, int); 603 extern int sigcheck(proc_t *, kthread_t *); 604 extern void sigdefault(proc_t *); 605 606 extern void pid_setmin(void); 607 extern pid_t pid_allocate(proc_t *, int); 608 extern struct pid *pid_find(pid_t); 609 extern int pid_rele(struct pid *); 610 extern void pid_exit(proc_t *); 611 extern void proc_entry_free(struct pid *); 612 extern proc_t *prfind(pid_t); 613 extern proc_t *prfind_zone(pid_t, zoneid_t); 614 extern proc_t *pgfind(pid_t); 615 extern proc_t *pgfind_zone(pid_t, zoneid_t); 616 extern proc_t *sprlock(pid_t); 617 extern proc_t *sprlock_zone(pid_t, zoneid_t); 618 extern int sprtrylock_proc(proc_t *); 619 extern void sprwaitlock_proc(proc_t *); 620 extern void sprlock_proc(proc_t *); 621 extern void sprunlock(proc_t *); 622 extern void pid_init(void); 623 extern proc_t *pid_entry(int); 624 extern int pid_slot(proc_t *); 625 extern void signal(pid_t, int); 626 extern void prsignal(struct pid *, int); 627 extern int uread(proc_t *, void *, size_t, uintptr_t); 628 extern int uwrite(proc_t *, void *, size_t, uintptr_t); 629 630 extern void pgsignal(struct pid *, int); 631 extern void pgjoin(proc_t *, struct pid *); 632 extern void pgcreate(proc_t *); 633 extern void pgexit(proc_t *); 634 extern void pgdetach(proc_t *); 635 extern int pgmembers(pid_t); 636 637 extern void init_mstate(kthread_t *, int); 638 extern int new_mstate(kthread_t *, int); 639 extern void restore_mstate(kthread_t *); 640 extern void term_mstate(kthread_t *); 641 extern void estimate_msacct(kthread_t *, hrtime_t); 642 extern void disable_msacct(proc_t *); 643 extern hrtime_t mstate_aggr_state(proc_t *, int); 644 extern hrtime_t mstate_thread_onproc_time(kthread_t *); 645 extern void syscall_mstate(int, int); 646 647 extern uint_t cpu_update_pct(kthread_t *, hrtime_t); 648 649 extern void set_proc_pre_sys(proc_t *p); 650 extern void set_proc_post_sys(proc_t *p); 651 extern void set_proc_sys(proc_t *p); 652 extern void set_proc_ast(proc_t *p); 653 extern void set_all_proc_sys(void); 654 655 /* thread function prototypes */ 656 657 extern kthread_t *thread_create( 658 caddr_t stk, 659 size_t stksize, 660 void (*proc)(), 661 void *arg, 662 size_t len, 663 proc_t *pp, 664 int state, 665 pri_t pri); 666 extern void thread_exit(void) __NORETURN; 667 extern void thread_free(kthread_t *); 668 extern void thread_rele(kthread_t *); 669 extern void thread_join(kt_did_t); 670 extern int reaper(void); 671 extern void installctx(kthread_t *, void *, void (*)(), void (*)(), 672 void (*)(), void (*)(), void (*)(), void (*)()); 673 extern int removectx(kthread_t *, void *, void (*)(), void (*)(), 674 void (*)(), void (*)(), void (*)(), void (*)()); 675 extern void savectx(kthread_t *); 676 extern void restorectx(kthread_t *); 677 extern void forkctx(kthread_t *, kthread_t *); 678 extern void lwp_createctx(kthread_t *, kthread_t *); 679 extern void exitctx(kthread_t *); 680 extern void freectx(kthread_t *, int); 681 extern void installpctx(proc_t *, void *, void (*)(), void (*)(), 682 void (*)(), void (*)(), void (*)()); 683 extern int removepctx(proc_t *, void *, void (*)(), void (*)(), 684 void (*)(), void (*)(), void (*)()); 685 extern void savepctx(proc_t *); 686 extern void restorepctx(proc_t *); 687 extern void forkpctx(proc_t *, proc_t *); 688 extern void exitpctx(proc_t *); 689 extern void freepctx(proc_t *, int); 690 extern kthread_t *thread_unpin(void); 691 extern void thread_init(void); 692 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t); 693 694 extern void tsd_create(uint_t *, void (*)(void *)); 695 extern void tsd_destroy(uint_t *); 696 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void)); 697 extern void *tsd_get(uint_t); 698 extern int tsd_set(uint_t, void *); 699 extern void tsd_exit(void); 700 extern void *tsd_agent_get(kthread_t *, uint_t); 701 extern int tsd_agent_set(kthread_t *, uint_t, void *); 702 703 /* lwp function prototypes */ 704 705 extern klwp_t *lwp_create( 706 void (*proc)(), 707 caddr_t arg, 708 size_t len, 709 proc_t *p, 710 int state, 711 int pri, 712 const k_sigset_t *smask, 713 int cid, 714 id_t lwpid); 715 extern kthread_t *idtot(proc_t *, id_t); 716 extern void lwp_hash_in(proc_t *, lwpent_t *); 717 extern void lwp_hash_out(proc_t *, id_t); 718 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t); 719 extern void lwp_create_done(kthread_t *); 720 extern void lwp_exit(void); 721 extern void lwp_pcb_exit(void); 722 extern void lwp_cleanup(void); 723 extern int lwp_suspend(kthread_t *); 724 extern void lwp_continue(kthread_t *); 725 extern void holdlwp(void); 726 extern void stoplwp(void); 727 extern int holdlwps(int); 728 extern int holdwatch(void); 729 extern void pokelwps(proc_t *); 730 extern void continuelwps(proc_t *); 731 extern int exitlwps(int); 732 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *); 733 extern void lwp_ctmpl_clear(klwp_t *); 734 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t); 735 extern void lwp_load(klwp_t *, gregset_t, uintptr_t); 736 extern void lwp_setrval(klwp_t *, int, int); 737 extern void lwp_forkregs(klwp_t *, klwp_t *); 738 extern void lwp_freeregs(klwp_t *, int); 739 extern caddr_t lwp_stk_init(klwp_t *, caddr_t); 740 extern void lwp_stk_cache_init(void); 741 extern void lwp_stk_fini(klwp_t *); 742 extern void lwp_installctx(klwp_t *); 743 extern void lwp_rtt(void); 744 extern void lwp_rtt_initial(void); 745 extern int lwp_setprivate(klwp_t *, int, uintptr_t); 746 extern void lwp_stat_update(lwp_stat_id_t, long); 747 extern void lwp_attach_brand_hdlrs(klwp_t *); 748 749 /* 750 * Signal queue function prototypes. Must be here due to header ordering 751 * dependencies. 752 */ 753 extern void sigqfree(proc_t *); 754 extern void siginfofree(sigqueue_t *); 755 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **); 756 extern void sigdelq(proc_t *, kthread_t *, int); 757 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int); 758 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *); 759 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *); 760 extern void sigdupq(proc_t *, proc_t *); 761 extern int sigwillqueue(int, int); 762 extern sigqhdr_t *sigqhdralloc(size_t, uint_t); 763 extern sigqueue_t *sigqalloc(sigqhdr_t *); 764 extern void sigqhdrfree(sigqhdr_t *); 765 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *, 766 k_sigset_t *, sigqueue_t *); 767 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *, 768 k_sigset_t *, sigqueue_t *); 769 extern void winfo(proc_t *, k_siginfo_t *, int); 770 extern int wstat(int, int); 771 extern int sendsig(int, k_siginfo_t *, void (*)()); 772 #if defined(_SYSCALL32_IMPL) 773 extern int sendsig32(int, k_siginfo_t *, void (*)()); 774 #endif 775 776 #endif /* _KERNEL */ 777 778 #ifdef __cplusplus 779 } 780 #endif 781 782 #endif /* _SYS_PROC_H */ 783