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 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */ 220 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */ 221 #if defined(_LP64) 222 uintptr_t p_lgrpres2; /* reserved for lgrp migration */ 223 #endif 224 /* 225 * /proc (process filesystem) debugger interface stuff. 226 */ 227 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */ 228 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */ 229 struct vnode *p_trace; /* pointer to primary /proc vnode */ 230 struct vnode *p_plist; /* list of /proc vnodes for process */ 231 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */ 232 avl_tree_t p_warea; /* list of watched areas */ 233 avl_tree_t p_wpage; /* remembered watched pages (vfork) */ 234 watched_page_t *p_wprot; /* pages that need to have prot set */ 235 int p_mapcnt; /* number of active pr_mappage()s */ 236 kmutex_t p_maplock; /* lock for pr_mappage() */ 237 struct proc *p_rlink; /* linked list for server */ 238 kcondvar_t p_srwchan_cv; 239 size_t p_stksize; /* process stack size in bytes */ 240 uint_t p_stkpageszc; /* preferred stack max page size code */ 241 242 /* 243 * Microstate accounting, resource usage, and real-time profiling 244 */ 245 hrtime_t p_mstart; /* hi-res process start time */ 246 hrtime_t p_mterm; /* hi-res process termination time */ 247 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */ 248 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */ 249 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */ 250 struct lrusage p_ru; /* lrusage sum over defunct lwps */ 251 struct lrusage p_cru; /* lrusage sum over child procs */ 252 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */ 253 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */ 254 uint_t p_defunct; /* number of defunct lwps */ 255 /* 256 * profiling. A lock is used in the event of multiple lwp's 257 * using the same profiling base/size. 258 */ 259 kmutex_t p_pflock; /* protects user profile arguments */ 260 struct prof p_prof; /* profile arguments */ 261 262 /* 263 * The user structure 264 */ 265 struct user p_user; /* (see sys/user.h) */ 266 267 /* 268 * Doors. 269 */ 270 door_pool_t p_server_threads; /* common thread pool */ 271 struct door_node *p_door_list; /* active doors */ 272 struct door_node *p_unref_list; 273 kcondvar_t p_unref_cv; 274 char p_unref_thread; /* unref thread created */ 275 276 /* 277 * Kernel probes 278 */ 279 uchar_t p_tnf_flags; 280 281 /* 282 * C2 Security (C2_AUDIT) 283 */ 284 struct p_audit_data *p_audit_data; /* per process audit structure */ 285 286 pctxop_t *p_pctx; 287 288 #if defined(__x86) 289 /* 290 * LDT support. 291 */ 292 kmutex_t p_ldtlock; /* protects the following fields */ 293 user_desc_t *p_ldt; /* Pointer to private LDT */ 294 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */ 295 ushort_t p_ldtlimit; /* highest selector used */ 296 #endif 297 size_t p_swrss; /* resident set size before last swap */ 298 struct aio *p_aio; /* pointer to async I/O struct */ 299 struct itimer **p_itimer; /* interval timers */ 300 timeout_id_t p_alarmid; /* alarm's timeout id */ 301 caddr_t p_usrstack; /* top of the process stack */ 302 uint_t p_stkprot; /* stack memory protection */ 303 uint_t p_datprot; /* data memory protection */ 304 model_t p_model; /* data model determined at exec time */ 305 struct lwpchan_data *p_lcp; /* lwpchan cache */ 306 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */ 307 utrap_handler_t *p_utraps; /* pointer to user trap handlers */ 308 struct corectl_path *p_corefile; /* pattern for core file */ 309 struct task *p_task; /* our containing task */ 310 struct proc *p_taskprev; /* ptr to previous process in task */ 311 struct proc *p_tasknext; /* ptr to next process in task */ 312 kmutex_t p_sc_lock; /* protects p_pagep */ 313 struct sc_page_ctl *p_pagep; /* list of process's shared pages */ 314 struct rctl_set *p_rctls; /* resource controls for this process */ 315 rlim64_t p_stk_ctl; /* currently enforced stack size */ 316 rlim64_t p_fsz_ctl; /* currently enforced file size */ 317 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */ 318 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */ 319 pid_t p_ancpid; /* ancestor pid, used by exacct */ 320 struct itimerval p_realitimer; /* real interval timer */ 321 timeout_id_t p_itimerid; /* real interval timer's timeout id */ 322 struct corectl_content *p_content; /* content of core file */ 323 324 avl_tree_t p_ct_held; /* held contracts */ 325 struct ct_equeue **p_ct_equeue; /* process-type event queues */ 326 327 struct cont_process *p_ct_process; /* process contract */ 328 list_node_t p_ct_member; /* process contract membership */ 329 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */ 330 331 int p_dtrace_probes; /* are there probes for this proc? */ 332 uint64_t p_dtrace_count; /* number of DTrace tracepoints */ 333 /* (protected by P_PR_LOCK) */ 334 void *p_dtrace_helpers; /* DTrace helpers, if any */ 335 struct pool *p_pool; /* pointer to containing pool */ 336 kcondvar_t p_poolcv; /* synchronization with pools */ 337 uint_t p_poolcnt; /* # threads inside pool barrier */ 338 uint_t p_poolflag; /* pool-related flags (see below) */ 339 uintptr_t p_portcnt; /* event ports counter */ 340 struct zone *p_zone; /* zone in which process lives */ 341 struct vnode *p_execdir; /* directory that p_exec came from */ 342 struct brand *p_brand; /* process's brand */ 343 void *p_brand_data; /* per-process brand state */ 344 345 /* additional lock to protect p_sessp (but not its contents) */ 346 kmutex_t p_splock; 347 rctl_qty_t p_locked_mem; /* locked memory charged to proc */ 348 /* protected by p_lock */ 349 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */ 350 /* protected by p_lock */ 351 } proc_t; 352 353 #define PROC_T /* headers relying on proc_t are OK */ 354 355 #ifdef _KERNEL 356 357 /* active process chain */ 358 359 extern proc_t *practive; 360 361 /* Well known processes */ 362 363 extern proc_t *proc_sched; /* memory scheduler */ 364 extern proc_t *proc_init; /* init */ 365 extern proc_t *proc_pageout; /* pageout daemon */ 366 extern proc_t *proc_fsflush; /* filesystem sync-er */ 367 368 #endif /* _KERNEL */ 369 370 /* 371 * Stuff to keep track of the number of processes each uid has. 372 * It is tracked on a per-zone basis; that is, if users in different 373 * zones have the same uid, they are tracked separately. 374 * 375 * A structure is allocated when a new <uid,zoneid> pair shows up 376 * There is a hash to find each structure. 377 */ 378 struct upcount { 379 struct upcount *up_next; 380 uid_t up_uid; 381 zoneid_t up_zoneid; 382 uint_t up_count; 383 }; 384 385 /* process ID info */ 386 387 struct pid { 388 unsigned int pid_prinactive :1; 389 unsigned int pid_pgorphaned :1; 390 unsigned int pid_padding :6; /* used to be pid_ref, now an int */ 391 unsigned int pid_prslot :24; 392 pid_t pid_id; 393 struct proc *pid_pglink; 394 struct proc *pid_pgtail; 395 struct pid *pid_link; 396 uint_t pid_ref; 397 }; 398 399 #define p_pgrp p_pgidp->pid_id 400 #define p_pid p_pidp->pid_id 401 #define p_slot p_pidp->pid_prslot 402 #define p_detached p_pgidp->pid_pgorphaned 403 404 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 405 ++(pidp)->pid_ref; 406 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 407 (pidp)->pid_ref > 1 ? \ 408 --(pidp)->pid_ref : pid_rele(pidp); 409 410 /* 411 * Structure containing persistent process lock. The structure and 412 * macro allow "mutex_enter(&p->p_lock)" to continue working. 413 */ 414 struct plock { 415 kmutex_t pl_lock; 416 }; 417 #define p_lock p_lockp->pl_lock 418 419 #ifdef _KERNEL 420 extern proc_t p0; /* process 0 */ 421 extern struct plock p0lock; /* p0's plock */ 422 extern struct pid pid0; /* p0's pid */ 423 424 /* pid_allocate() flags */ 425 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */ 426 427 #endif /* _KERNEL */ 428 429 /* stat codes */ 430 431 #define SSLEEP 1 /* awaiting an event */ 432 #define SRUN 2 /* runnable */ 433 #define SZOMB 3 /* process terminated but not waited for */ 434 #define SSTOP 4 /* process stopped by debugger */ 435 #define SIDL 5 /* intermediate state in process creation */ 436 #define SONPROC 6 /* process is being run on a processor */ 437 #define SWAIT 7 /* process is waiting to become runnable */ 438 439 /* p_pidflag codes */ 440 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */ 441 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */ 442 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */ 443 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */ 444 445 /* p_proc_flag codes -- these flags are mostly private to /proc */ 446 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */ 447 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */ 448 #define P_PR_FORK 0x0004 /* child inherits tracing flags */ 449 #define P_PR_LOCK 0x0008 /* process locked by /proc */ 450 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */ 451 #define P_PR_EXEC 0x0020 /* process is in exec() */ 452 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */ 453 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */ 454 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */ 455 456 /* 457 * p_flag codes 458 * 459 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's 460 * psinfo_t.p_flag field. Historically, all were, but since they are 461 * implementation dependant, we only export the ones people have come to 462 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be 463 * altered. 464 */ 465 #define SSYS 0x00000001 /* system (resident) process */ 466 #define SEXITING 0x00000002 /* process is exiting */ 467 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */ 468 #define SFORKING 0x00000008 /* tells called functions that we're forking */ 469 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */ 470 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */ 471 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */ 472 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */ 473 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */ 474 #define SUGID 0x00002000 /* process was result of set[ug]id exec */ 475 #define SEXECED 0x00004000 /* this process has execed */ 476 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */ 477 #define SNOWAIT 0x00020000 /* children never become zombies */ 478 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */ 479 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */ 480 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */ 481 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */ 482 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */ 483 #define SCOREDUMP 0x01000000 /* process is dumping core */ 484 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */ 485 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */ 486 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */ 487 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */ 488 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */ 489 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */ 490 #define SDOCORE 0x80000000 /* process will attempt to dump core */ 491 492 /* 493 * p_poolflag codes 494 * 495 * These flags are used to synchronize with the pool subsystem to allow 496 * re-binding of processes to new pools. 497 */ 498 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */ 499 #define PEXITED 0x0002 /* process exited and about to become zombie */ 500 501 /* Macro to convert proc pointer to a user block pointer */ 502 #define PTOU(p) (&(p)->p_user) 503 504 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig)) 505 506 /* Macro to reduce unnecessary calls to issig() */ 507 508 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why) 509 510 /* 511 * Fast version of ISSIG. 512 * 1. uses register pointers to lwp and proc instead of reloading them. 513 * 2. uses bit-wise OR of tests, since the usual case is that none of them 514 * are true, this saves orcc's and branches. 515 * 3. load the signal flags instead of using sigisempty() macro which does 516 * a branch to convert to boolean. 517 */ 518 #define ISSIG_FAST(t, lwp, p, why) \ 519 (ISSIG_PENDING(t, lwp, p) && issig(why)) 520 521 #define ISSIG_PENDING(t, lwp, p) \ 522 ((lwp)->lwp_cursig | \ 523 sigcheck((p), (t)) | \ 524 (p)->p_stopsig | \ 525 (t)->t_dtrace_stop | \ 526 (t)->t_dtrace_sig | \ 527 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \ 528 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH))) 529 530 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \ 531 sigismember(&stopdefault, sig)) 532 533 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK) 534 535 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale) 536 537 /* 538 * Determine if there are any watchpoints active in the process. 539 */ 540 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0) 541 542 /* Reasons for calling issig() */ 543 544 #define FORREAL 0 /* Usual side-effects */ 545 #define JUSTLOOKING 1 /* Don't stop the process */ 546 547 /* 'what' values for stop(PR_SUSPENDED, what) */ 548 #define SUSPEND_NORMAL 0 549 #define SUSPEND_PAUSE 1 550 551 /* pseudo-flag to lwp_create() */ 552 #define NOCLASS (-1) 553 554 /* LWP stats updated via lwp_stats_update() */ 555 typedef enum { 556 LWP_STAT_INBLK, 557 LWP_STAT_OUBLK, 558 LWP_STAT_MSGRCV, 559 LWP_STAT_MSGSND 560 } lwp_stat_id_t; 561 562 #ifdef _KERNEL 563 564 /* user profiling functions */ 565 566 extern void profil_tick(uintptr_t); 567 568 /* process management functions */ 569 570 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **); 571 extern void vfwait(pid_t); 572 extern void proc_detach(proc_t *); 573 extern void freeproc(proc_t *); 574 extern void setrun(kthread_t *); 575 extern void setrun_locked(kthread_t *); 576 extern void exit(int, int); 577 extern int proc_exit(int, int); 578 extern void proc_is_exiting(proc_t *); 579 extern void relvm(void); 580 extern void add_ns(proc_t *, proc_t *); 581 extern void delete_ns(proc_t *, proc_t *); 582 extern void upcount_inc(uid_t, zoneid_t); 583 extern void upcount_dec(uid_t, zoneid_t); 584 extern int upcount_get(uid_t, zoneid_t); 585 #if defined(__x86) 586 extern void ldt_dup(proc_t *, proc_t *); 587 extern selector_t setup_thrptr(proc_t *, uintptr_t); 588 extern void deferred_singlestep_trap(caddr_t); 589 #endif 590 591 extern void sigcld(proc_t *, sigqueue_t *); 592 extern void sigcld_delete(k_siginfo_t *); 593 extern void sigcld_repost(void); 594 extern int fsig(k_sigset_t *, kthread_t *); 595 extern void psig(void); 596 extern void stop(int, int); 597 extern int stop_on_fault(uint_t, k_siginfo_t *); 598 extern int issig(int); 599 extern int jobstopped(proc_t *); 600 extern void psignal(proc_t *, int); 601 extern void tsignal(kthread_t *, int); 602 extern void sigtoproc(proc_t *, kthread_t *, int); 603 extern void trapsig(k_siginfo_t *, int); 604 extern int eat_signal(kthread_t *, int); 605 extern int signal_is_blocked(kthread_t *, int); 606 extern int sigcheck(proc_t *, kthread_t *); 607 extern void sigdefault(proc_t *); 608 609 extern void pid_setmin(void); 610 extern pid_t pid_allocate(proc_t *, int); 611 extern struct pid *pid_find(pid_t); 612 extern int pid_rele(struct pid *); 613 extern void pid_exit(proc_t *); 614 extern void proc_entry_free(struct pid *); 615 extern proc_t *prfind(pid_t); 616 extern proc_t *prfind_zone(pid_t, zoneid_t); 617 extern proc_t *pgfind(pid_t); 618 extern proc_t *pgfind_zone(pid_t, zoneid_t); 619 extern proc_t *sprlock(pid_t); 620 extern proc_t *sprlock_zone(pid_t, zoneid_t); 621 extern int sprtrylock_proc(proc_t *); 622 extern void sprwaitlock_proc(proc_t *); 623 extern void sprlock_proc(proc_t *); 624 extern void sprunlock(proc_t *); 625 extern void pid_init(void); 626 extern proc_t *pid_entry(int); 627 extern int pid_slot(proc_t *); 628 extern void signal(pid_t, int); 629 extern void prsignal(struct pid *, int); 630 extern int uread(proc_t *, void *, size_t, uintptr_t); 631 extern int uwrite(proc_t *, void *, size_t, uintptr_t); 632 633 extern void pgsignal(struct pid *, int); 634 extern void pgjoin(proc_t *, struct pid *); 635 extern void pgcreate(proc_t *); 636 extern void pgexit(proc_t *); 637 extern void pgdetach(proc_t *); 638 extern int pgmembers(pid_t); 639 640 extern void init_mstate(kthread_t *, int); 641 extern int new_mstate(kthread_t *, int); 642 extern void restore_mstate(kthread_t *); 643 extern void term_mstate(kthread_t *); 644 extern void estimate_msacct(kthread_t *, hrtime_t); 645 extern void disable_msacct(proc_t *); 646 extern hrtime_t mstate_aggr_state(proc_t *, int); 647 extern hrtime_t mstate_thread_onproc_time(kthread_t *); 648 extern void syscall_mstate(int, int); 649 650 extern uint_t cpu_update_pct(kthread_t *, hrtime_t); 651 652 extern void set_proc_pre_sys(proc_t *p); 653 extern void set_proc_post_sys(proc_t *p); 654 extern void set_proc_sys(proc_t *p); 655 extern void set_proc_ast(proc_t *p); 656 extern void set_all_proc_sys(void); 657 658 /* thread function prototypes */ 659 660 extern kthread_t *thread_create( 661 caddr_t stk, 662 size_t stksize, 663 void (*proc)(), 664 void *arg, 665 size_t len, 666 proc_t *pp, 667 int state, 668 pri_t pri); 669 extern void thread_exit(void) __NORETURN; 670 extern void thread_free(kthread_t *); 671 extern void thread_rele(kthread_t *); 672 extern void thread_join(kt_did_t); 673 extern int reaper(void); 674 extern void installctx(kthread_t *, void *, void (*)(), void (*)(), 675 void (*)(), void (*)(), void (*)(), void (*)()); 676 extern int removectx(kthread_t *, void *, void (*)(), void (*)(), 677 void (*)(), void (*)(), void (*)(), void (*)()); 678 extern void savectx(kthread_t *); 679 extern void restorectx(kthread_t *); 680 extern void forkctx(kthread_t *, kthread_t *); 681 extern void lwp_createctx(kthread_t *, kthread_t *); 682 extern void exitctx(kthread_t *); 683 extern void freectx(kthread_t *, int); 684 extern void installpctx(proc_t *, void *, void (*)(), void (*)(), 685 void (*)(), void (*)(), void (*)()); 686 extern int removepctx(proc_t *, void *, void (*)(), void (*)(), 687 void (*)(), void (*)(), void (*)()); 688 extern void savepctx(proc_t *); 689 extern void restorepctx(proc_t *); 690 extern void forkpctx(proc_t *, proc_t *); 691 extern void exitpctx(proc_t *); 692 extern void freepctx(proc_t *, int); 693 extern kthread_t *thread_unpin(void); 694 extern void thread_init(void); 695 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t); 696 697 extern void tsd_create(uint_t *, void (*)(void *)); 698 extern void tsd_destroy(uint_t *); 699 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void)); 700 extern void *tsd_get(uint_t); 701 extern int tsd_set(uint_t, void *); 702 extern void tsd_exit(void); 703 extern void *tsd_agent_get(kthread_t *, uint_t); 704 extern int tsd_agent_set(kthread_t *, uint_t, void *); 705 706 /* lwp function prototypes */ 707 708 extern klwp_t *lwp_create( 709 void (*proc)(), 710 caddr_t arg, 711 size_t len, 712 proc_t *p, 713 int state, 714 int pri, 715 const k_sigset_t *smask, 716 int cid, 717 id_t lwpid); 718 extern kthread_t *idtot(proc_t *, id_t); 719 extern void lwp_hash_in(proc_t *, lwpent_t *); 720 extern void lwp_hash_out(proc_t *, id_t); 721 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t); 722 extern void lwp_create_done(kthread_t *); 723 extern void lwp_exit(void); 724 extern void lwp_pcb_exit(void); 725 extern void lwp_cleanup(void); 726 extern int lwp_suspend(kthread_t *); 727 extern void lwp_continue(kthread_t *); 728 extern void holdlwp(void); 729 extern void stoplwp(void); 730 extern int holdlwps(int); 731 extern int holdwatch(void); 732 extern void pokelwps(proc_t *); 733 extern void continuelwps(proc_t *); 734 extern int exitlwps(int); 735 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *); 736 extern void lwp_ctmpl_clear(klwp_t *); 737 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t); 738 extern void lwp_load(klwp_t *, gregset_t, uintptr_t); 739 extern void lwp_setrval(klwp_t *, int, int); 740 extern void lwp_forkregs(klwp_t *, klwp_t *); 741 extern void lwp_freeregs(klwp_t *, int); 742 extern caddr_t lwp_stk_init(klwp_t *, caddr_t); 743 extern void lwp_stk_cache_init(void); 744 extern void lwp_stk_fini(klwp_t *); 745 extern void lwp_installctx(klwp_t *); 746 extern void lwp_rtt(void); 747 extern void lwp_rtt_initial(void); 748 extern int lwp_setprivate(klwp_t *, int, uintptr_t); 749 extern void lwp_stat_update(lwp_stat_id_t, long); 750 extern void lwp_attach_brand_hdlrs(klwp_t *); 751 752 /* 753 * Signal queue function prototypes. Must be here due to header ordering 754 * dependencies. 755 */ 756 extern void sigqfree(proc_t *); 757 extern void siginfofree(sigqueue_t *); 758 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **); 759 extern void sigdelq(proc_t *, kthread_t *, int); 760 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int); 761 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *); 762 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *); 763 extern void sigdupq(proc_t *, proc_t *); 764 extern int sigwillqueue(int, int); 765 extern sigqhdr_t *sigqhdralloc(size_t, uint_t); 766 extern sigqueue_t *sigqalloc(sigqhdr_t *); 767 extern void sigqhdrfree(sigqhdr_t *); 768 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *, 769 k_sigset_t *, sigqueue_t *); 770 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *, 771 k_sigset_t *, sigqueue_t *); 772 extern void winfo(proc_t *, k_siginfo_t *, int); 773 extern int wstat(int, int); 774 extern int sendsig(int, k_siginfo_t *, void (*)()); 775 #if defined(_SYSCALL32_IMPL) 776 extern int sendsig32(int, k_siginfo_t *, void (*)()); 777 #endif 778 779 #endif /* _KERNEL */ 780 781 #ifdef __cplusplus 782 } 783 #endif 784 785 #endif /* _SYS_PROC_H */ 786