1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 #ifndef _SYS_PROC_H 30 #define _SYS_PROC_H 31 32 #include <sys/time.h> 33 #include <sys/thread.h> 34 #include <sys/cred.h> 35 #include <sys/user.h> 36 #include <sys/watchpoint.h> 37 #include <sys/timer.h> 38 #if defined(__x86) 39 #include <sys/tss.h> 40 #include <sys/segments.h> 41 #endif 42 #include <sys/utrap.h> 43 #include <sys/model.h> 44 #include <sys/refstr.h> 45 #include <sys/avl.h> 46 #include <sys/rctl.h> 47 #include <sys/list.h> 48 #include <sys/avl.h> 49 #include <sys/door_impl.h> 50 #include <sys/signalfd.h> 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 /* 57 * Profile arguments. 58 */ 59 struct prof { 60 void *pr_base; /* buffer base */ 61 uintptr_t pr_off; /* pc offset */ 62 size_t pr_size; /* buffer size */ 63 uint32_t pr_scale; /* pc scaling */ 64 long pr_samples; /* sample count */ 65 }; 66 67 /* 68 * An lwp directory entry. 69 * If le_thread != NULL, this is an active lwp. 70 * If le_thread == NULL, this is an unreaped zombie lwp. 71 */ 72 typedef struct lwpent { 73 kthread_t *le_thread; /* the active lwp, NULL if zombie */ 74 id_t le_lwpid; /* its lwpid (t->t_tid) */ 75 uint16_t le_waiters; /* total number of lwp_wait()ers */ 76 uint16_t le_dwaiters; /* number that are daemons */ 77 clock_t le_start; /* start time of this lwp */ 78 struct vnode *le_trace; /* pointer to /proc lwp vnode */ 79 } lwpent_t; 80 81 typedef struct pctxop { 82 void (*save_op)(void *); /* function to invoke to save ctx */ 83 void (*restore_op)(void *); /* function to invoke to restore ctx */ 84 void (*fork_op)(void *, void *); /* invoke to fork context */ 85 void (*exit_op)(void *); /* invoked during process exit */ 86 void (*free_op)(void *, int); /* function which frees the context */ 87 void *arg; /* argument to above functions */ 88 struct pctxop *next; /* next pcontext ops */ 89 } pctxop_t; 90 91 /* 92 * Elements of the lwp directory, p->p_lwpdir[]. 93 * 94 * We allocate lwp directory entries separately from lwp directory 95 * elements because the lwp directory must be allocated as an array. 96 * The number of lwps can grow quite large and we want to keep the 97 * size of the kmem_alloc()d directory as small as possible. 98 * 99 * If ld_entry == NULL, the entry is free and is on the free list, 100 * p->p_lwpfree, linked through ld_next. If ld_entry != NULL, the 101 * entry is used and ld_next is the thread-id hash link pointer. 102 */ 103 typedef struct lwpdir { 104 struct lwpdir *ld_next; /* hash chain or free list */ 105 struct lwpent *ld_entry; /* lwp directory entry */ 106 } lwpdir_t; 107 108 /* 109 * Element of the p_tidhash thread-id (lwpid) hash table. 110 */ 111 typedef struct tidhash { 112 kmutex_t th_lock; 113 lwpdir_t *th_list; 114 } tidhash_t; 115 116 /* 117 * Retired tidhash hash tables. 118 */ 119 typedef struct ret_tidhash { 120 struct ret_tidhash *rth_next; 121 tidhash_t *rth_tidhash; 122 uint_t rth_tidhash_sz; 123 } ret_tidhash_t; 124 125 struct pool; 126 struct task; 127 struct zone; 128 struct brand; 129 struct corectl_path; 130 struct corectl_content; 131 132 /* 133 * One structure allocated per active process. It contains all 134 * data needed about the process while the process may be swapped 135 * out. Other per-process data (user.h) is also inside the proc structure. 136 * Lightweight-process data (lwp.h) and the kernel stack may be swapped out. 137 */ 138 typedef struct proc { 139 /* 140 * Fields requiring no explicit locking 141 */ 142 struct vnode *p_exec; /* pointer to a.out vnode */ 143 struct as *p_as; /* process address space pointer */ 144 struct plock *p_lockp; /* ptr to proc struct's mutex lock */ 145 kmutex_t p_crlock; /* lock for p_cred */ 146 struct cred *p_cred; /* process credentials */ 147 /* 148 * Fields protected by pidlock 149 */ 150 int p_swapcnt; /* number of swapped out lwps */ 151 char p_stat; /* status of process */ 152 char p_wcode; /* current wait code */ 153 ushort_t p_pidflag; /* flags protected only by pidlock */ 154 int p_wdata; /* current wait return value */ 155 pid_t p_ppid; /* process id of parent */ 156 struct proc *p_link; /* forward link */ 157 struct proc *p_parent; /* ptr to parent process */ 158 struct proc *p_child; /* ptr to first child process */ 159 struct proc *p_sibling; /* ptr to next sibling proc on chain */ 160 struct proc *p_psibling; /* ptr to prev sibling proc on chain */ 161 struct proc *p_sibling_ns; /* prt to siblings with new state */ 162 struct proc *p_child_ns; /* prt to children with new state */ 163 struct proc *p_next; /* active chain link next */ 164 struct proc *p_prev; /* active chain link prev */ 165 struct proc *p_nextofkin; /* gets accounting info at exit */ 166 struct proc *p_orphan; 167 struct proc *p_nextorph; 168 struct proc *p_pglink; /* process group hash chain link next */ 169 struct proc *p_ppglink; /* process group hash chain link prev */ 170 struct sess *p_sessp; /* session information */ 171 struct pid *p_pidp; /* process ID info */ 172 struct pid *p_pgidp; /* process group ID info */ 173 /* 174 * Fields protected by p_lock 175 */ 176 kcondvar_t p_cv; /* proc struct's condition variable */ 177 kcondvar_t p_flag_cv; 178 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */ 179 kcondvar_t p_holdlwps; /* process is waiting for its lwps */ 180 /* to to be held. */ 181 uint_t p_proc_flag; /* /proc-related flags */ 182 uint_t p_flag; /* protected while set. */ 183 /* flags defined below */ 184 clock_t p_utime; /* user time, this process */ 185 clock_t p_stime; /* system time, this process */ 186 clock_t p_cutime; /* sum of children's user time */ 187 clock_t p_cstime; /* sum of children's system time */ 188 avl_tree_t *p_segacct; /* System V shared segment list */ 189 avl_tree_t *p_semacct; /* System V semaphore undo list */ 190 caddr_t p_bssbase; /* base addr of last bss below heap */ 191 caddr_t p_brkbase; /* base addr of heap */ 192 size_t p_brksize; /* heap size in bytes */ 193 uint_t p_brkpageszc; /* preferred heap max page size code */ 194 /* 195 * Per process signal stuff. 196 */ 197 k_sigset_t p_sig; /* signals pending to this process */ 198 k_sigset_t p_extsig; /* signals sent from another contract */ 199 k_sigset_t p_ignore; /* ignore when generated */ 200 k_sigset_t p_siginfo; /* gets signal info with signal */ 201 void *p_sigfd; /* signalfd support state */ 202 struct sigqueue *p_sigqueue; /* queued siginfo structures */ 203 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */ 204 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */ 205 uchar_t p_stopsig; /* jobcontrol stop signal */ 206 207 /* 208 * Special per-process flag when set will fix misaligned memory 209 * references. 210 */ 211 char p_fixalignment; 212 213 /* 214 * Per process lwp and kernel thread stuff 215 */ 216 id_t p_lwpid; /* most recently allocated lwpid */ 217 int p_lwpcnt; /* number of lwps in this process */ 218 int p_lwprcnt; /* number of not stopped lwps */ 219 int p_lwpdaemon; /* number of TP_DAEMON lwps */ 220 int p_lwpwait; /* number of lwps in lwp_wait() */ 221 int p_lwpdwait; /* number of daemons in lwp_wait() */ 222 int p_zombcnt; /* number of zombie lwps */ 223 kthread_t *p_tlist; /* circular list of threads */ 224 lwpdir_t *p_lwpdir; /* thread (lwp) directory */ 225 lwpdir_t *p_lwpfree; /* p_lwpdir free list */ 226 tidhash_t *p_tidhash; /* tid (lwpid) lookup hash table */ 227 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */ 228 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */ 229 ret_tidhash_t *p_ret_tidhash; /* retired tidhash hash tables */ 230 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */ 231 /* on which process has threads */ 232 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */ 233 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */ 234 #if defined(_LP64) 235 uintptr_t p_lgrpres2; /* reserved for lgrp migration */ 236 #endif 237 /* 238 * /proc (process filesystem) debugger interface stuff. 239 */ 240 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */ 241 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */ 242 struct vnode *p_trace; /* pointer to primary /proc vnode */ 243 struct vnode *p_plist; /* list of /proc vnodes for process */ 244 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */ 245 avl_tree_t p_warea; /* list of watched areas */ 246 avl_tree_t p_wpage; /* remembered watched pages (vfork) */ 247 watched_page_t *p_wprot; /* pages that need to have prot set */ 248 int p_mapcnt; /* number of active pr_mappage()s */ 249 kmutex_t p_maplock; /* lock for pr_mappage() */ 250 struct proc *p_rlink; /* linked list for server */ 251 kcondvar_t p_srwchan_cv; 252 size_t p_stksize; /* process stack size in bytes */ 253 uint_t p_stkpageszc; /* preferred stack max page size code */ 254 255 /* 256 * Microstate accounting, resource usage, and real-time profiling 257 */ 258 hrtime_t p_mstart; /* hi-res process start time */ 259 hrtime_t p_mterm; /* hi-res process termination time */ 260 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */ 261 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */ 262 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */ 263 struct lrusage p_ru; /* lrusage sum over defunct lwps */ 264 struct lrusage p_cru; /* lrusage sum over child procs */ 265 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */ 266 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */ 267 uint_t p_defunct; /* number of defunct lwps */ 268 /* 269 * profiling. A lock is used in the event of multiple lwp's 270 * using the same profiling base/size. 271 */ 272 kmutex_t p_pflock; /* protects user profile arguments */ 273 struct prof p_prof; /* profile arguments */ 274 275 /* 276 * Doors. 277 */ 278 door_pool_t p_server_threads; /* common thread pool */ 279 struct door_node *p_door_list; /* active doors */ 280 struct door_node *p_unref_list; 281 kcondvar_t p_unref_cv; 282 char p_unref_thread; /* unref thread created */ 283 284 /* 285 * Kernel probes 286 */ 287 uchar_t p_tnf_flags; 288 289 /* 290 * Solaris Audit 291 */ 292 struct p_audit_data *p_audit_data; /* per process audit structure */ 293 294 pctxop_t *p_pctx; 295 296 #if defined(__x86) 297 /* 298 * LDT support. 299 */ 300 kmutex_t p_ldtlock; /* protects the following fields */ 301 user_desc_t *p_ldt; /* Pointer to private LDT */ 302 system_desc_t p_ldt_desc; /* segment descriptor for private LDT */ 303 ushort_t p_ldtlimit; /* highest selector used */ 304 #endif 305 size_t p_swrss; /* resident set size before last swap */ 306 struct aio *p_aio; /* pointer to async I/O struct */ 307 struct itimer **p_itimer; /* interval timers */ 308 timeout_id_t p_alarmid; /* alarm's timeout id */ 309 caddr_t p_usrstack; /* top of the process stack */ 310 uint_t p_stkprot; /* stack memory protection */ 311 uint_t p_datprot; /* data memory protection */ 312 model_t p_model; /* data model determined at exec time */ 313 struct lwpchan_data *p_lcp; /* lwpchan cache */ 314 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */ 315 utrap_handler_t *p_utraps; /* pointer to user trap handlers */ 316 struct corectl_path *p_corefile; /* pattern for core file */ 317 struct task *p_task; /* our containing task */ 318 struct proc *p_taskprev; /* ptr to previous process in task */ 319 struct proc *p_tasknext; /* ptr to next process in task */ 320 kmutex_t p_sc_lock; /* protects p_pagep */ 321 struct sc_page_ctl *p_pagep; /* list of process's shared pages */ 322 struct rctl_set *p_rctls; /* resource controls for this process */ 323 rlim64_t p_stk_ctl; /* currently enforced stack size */ 324 rlim64_t p_fsz_ctl; /* currently enforced file size */ 325 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */ 326 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */ 327 pid_t p_ancpid; /* ancestor pid, used by exacct */ 328 struct itimerval p_realitimer; /* real interval timer */ 329 timeout_id_t p_itimerid; /* real interval timer's timeout id */ 330 struct corectl_content *p_content; /* content of core file */ 331 332 avl_tree_t p_ct_held; /* held contracts */ 333 struct ct_equeue **p_ct_equeue; /* process-type event queues */ 334 335 struct cont_process *p_ct_process; /* process contract */ 336 list_node_t p_ct_member; /* process contract membership */ 337 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */ 338 339 int p_dtrace_probes; /* are there probes for this proc? */ 340 uint64_t p_dtrace_count; /* number of DTrace tracepoints */ 341 /* (protected by P_PR_LOCK) */ 342 void *p_dtrace_helpers; /* DTrace helpers, if any */ 343 struct pool *p_pool; /* pointer to containing pool */ 344 kcondvar_t p_poolcv; /* synchronization with pools */ 345 uint_t p_poolcnt; /* # threads inside pool barrier */ 346 uint_t p_poolflag; /* pool-related flags (see below) */ 347 uintptr_t p_portcnt; /* event ports counter */ 348 struct zone *p_zone; /* zone in which process lives */ 349 struct vnode *p_execdir; /* directory that p_exec came from */ 350 struct brand *p_brand; /* process's brand */ 351 void *p_brand_data; /* per-process brand state */ 352 353 /* additional lock to protect p_sessp (but not its contents) */ 354 kmutex_t p_splock; 355 rctl_qty_t p_locked_mem; /* locked memory charged to proc */ 356 /* protected by p_lock */ 357 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */ 358 /* protected by p_lock */ 359 clock_t p_ttime; /* buffered task time */ 360 361 /* 362 * The user structure 363 */ 364 struct user p_user; /* (see sys/user.h) */ 365 } proc_t; 366 367 #define PROC_T /* headers relying on proc_t are OK */ 368 369 #ifdef _KERNEL 370 371 /* active process chain */ 372 373 extern proc_t *practive; 374 375 /* Well known processes */ 376 377 extern proc_t *proc_sched; /* memory scheduler */ 378 extern proc_t *proc_init; /* init */ 379 extern proc_t *proc_pageout; /* pageout daemon */ 380 extern proc_t *proc_fsflush; /* filesystem sync-er */ 381 382 #endif /* _KERNEL */ 383 384 /* 385 * Stuff to keep track of the number of processes each uid has. 386 * It is tracked on a per-zone basis; that is, if users in different 387 * zones have the same uid, they are tracked separately. 388 * 389 * A structure is allocated when a new <uid,zoneid> pair shows up 390 * There is a hash to find each structure. 391 */ 392 struct upcount { 393 struct upcount *up_next; 394 uid_t up_uid; 395 zoneid_t up_zoneid; 396 uint_t up_count; 397 }; 398 399 /* process ID info */ 400 401 struct pid { 402 unsigned int pid_prinactive :1; 403 unsigned int pid_pgorphaned :1; 404 unsigned int pid_padding :6; /* used to be pid_ref, now an int */ 405 unsigned int pid_prslot :24; 406 pid_t pid_id; 407 struct proc *pid_pglink; 408 struct proc *pid_pgtail; 409 struct pid *pid_link; 410 uint_t pid_ref; 411 }; 412 413 #define p_pgrp p_pgidp->pid_id 414 #define p_pid p_pidp->pid_id 415 #define p_slot p_pidp->pid_prslot 416 #define p_detached p_pgidp->pid_pgorphaned 417 418 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 419 ++(pidp)->pid_ref; 420 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 421 (pidp)->pid_ref > 1 ? \ 422 --(pidp)->pid_ref : pid_rele(pidp); 423 424 /* 425 * Structure containing persistent process lock. The structure and 426 * macro allow "mutex_enter(&p->p_lock)" to continue working. 427 */ 428 struct plock { 429 kmutex_t pl_lock; 430 }; 431 #define p_lock p_lockp->pl_lock 432 433 #ifdef _KERNEL 434 extern proc_t p0; /* process 0 */ 435 extern struct plock p0lock; /* p0's plock */ 436 extern struct pid pid0; /* p0's pid */ 437 438 /* pid_allocate() flags */ 439 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */ 440 441 #endif /* _KERNEL */ 442 443 /* stat codes */ 444 445 #define SSLEEP 1 /* awaiting an event */ 446 #define SRUN 2 /* runnable */ 447 #define SZOMB 3 /* process terminated but not waited for */ 448 #define SSTOP 4 /* process stopped by debugger */ 449 #define SIDL 5 /* intermediate state in process creation */ 450 #define SONPROC 6 /* process is being run on a processor */ 451 #define SWAIT 7 /* process is waiting to become runnable */ 452 453 /* p_pidflag codes */ 454 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */ 455 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */ 456 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */ 457 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */ 458 459 /* p_proc_flag codes -- these flags are mostly private to /proc */ 460 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */ 461 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */ 462 #define P_PR_FORK 0x0004 /* child inherits tracing flags */ 463 #define P_PR_LOCK 0x0008 /* process locked by /proc */ 464 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */ 465 #define P_PR_EXEC 0x0020 /* process is in exec() */ 466 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */ 467 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */ 468 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */ 469 470 /* 471 * p_flag codes 472 * 473 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's 474 * psinfo_t.p_flag field. Historically, all were, but since they are 475 * implementation dependant, we only export the ones people have come to 476 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be 477 * altered. 478 */ 479 #define SSYS 0x00000001 /* system (resident) process */ 480 #define SEXITING 0x00000002 /* process is exiting */ 481 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */ 482 #define SFORKING 0x00000008 /* tells called functions that we're forking */ 483 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */ 484 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */ 485 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */ 486 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */ 487 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */ 488 #define SUGID 0x00002000 /* process was result of set[ug]id exec */ 489 #define SEXECED 0x00004000 /* this process has execed */ 490 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */ 491 #define SNOWAIT 0x00020000 /* children never become zombies */ 492 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */ 493 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */ 494 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */ 495 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */ 496 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */ 497 #define SCOREDUMP 0x01000000 /* process is dumping core */ 498 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */ 499 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */ 500 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */ 501 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */ 502 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */ 503 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */ 504 #define SDOCORE 0x80000000 /* process will attempt to dump core */ 505 506 /* 507 * p_poolflag codes 508 * 509 * These flags are used to synchronize with the pool subsystem to allow 510 * re-binding of processes to new pools. 511 */ 512 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */ 513 #define PEXITED 0x0002 /* process exited and about to become zombie */ 514 515 /* Macro to convert proc pointer to a user block pointer */ 516 #define PTOU(p) (&(p)->p_user) 517 518 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig)) 519 520 /* Macro to reduce unnecessary calls to issig() */ 521 522 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why) 523 524 /* 525 * Fast version of ISSIG. 526 * 1. uses register pointers to lwp and proc instead of reloading them. 527 * 2. uses bit-wise OR of tests, since the usual case is that none of them 528 * are true, this saves orcc's and branches. 529 * 3. load the signal flags instead of using sigisempty() macro which does 530 * a branch to convert to boolean. 531 */ 532 #define ISSIG_FAST(t, lwp, p, why) \ 533 (ISSIG_PENDING(t, lwp, p) && issig(why)) 534 535 #define ISSIG_PENDING(t, lwp, p) \ 536 ((lwp)->lwp_cursig | \ 537 sigcheck((p), (t)) | \ 538 (p)->p_stopsig | \ 539 (t)->t_dtrace_stop | \ 540 (t)->t_dtrace_sig | \ 541 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \ 542 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH))) 543 544 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \ 545 sigismember(&stopdefault, sig)) 546 547 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK) 548 549 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale) 550 551 /* 552 * Determine if there are any watchpoints active in the process. 553 */ 554 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0) 555 556 /* Reasons for calling issig() */ 557 558 #define FORREAL 0 /* Usual side-effects */ 559 #define JUSTLOOKING 1 /* Don't stop the process */ 560 561 /* 'what' values for stop(PR_SUSPENDED, what) */ 562 #define SUSPEND_NORMAL 0 563 #define SUSPEND_PAUSE 1 564 565 /* pseudo-flag to lwp_create() */ 566 #define NOCLASS (-1) 567 568 /* unused scheduling class ID */ 569 #define CLASS_UNUSED (-2) 570 571 /* LWP stats updated via lwp_stats_update() */ 572 typedef enum { 573 LWP_STAT_INBLK, 574 LWP_STAT_OUBLK, 575 LWP_STAT_MSGRCV, 576 LWP_STAT_MSGSND 577 } lwp_stat_id_t; 578 579 typedef struct prkillinfo { 580 int32_t prk_error; /* errno */ 581 int32_t prk_pad; /* pad */ 582 siginfo_t prk_info; /* siginfo of killing signal */ 583 } prkillinfo_t; 584 585 #ifdef _KERNEL 586 587 /* user profiling functions */ 588 589 extern void profil_tick(uintptr_t); 590 591 /* process management functions */ 592 593 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **, pid_t); 594 extern void vfwait(pid_t); 595 extern void proc_detach(proc_t *); 596 extern void freeproc(proc_t *); 597 extern void setrun(kthread_t *); 598 extern void setrun_locked(kthread_t *); 599 extern void exit(int, int); 600 extern int proc_exit(int, int); 601 extern void proc_is_exiting(proc_t *); 602 extern void relvm(void); 603 extern void add_ns(proc_t *, proc_t *); 604 extern void delete_ns(proc_t *, proc_t *); 605 extern void upcount_inc(uid_t, zoneid_t); 606 extern void upcount_dec(uid_t, zoneid_t); 607 extern int upcount_get(uid_t, zoneid_t); 608 #if defined(__x86) 609 extern selector_t setup_thrptr(proc_t *, uintptr_t); 610 extern void deferred_singlestep_trap(caddr_t); 611 #endif 612 613 extern void sigcld(proc_t *, sigqueue_t *); 614 extern void sigcld_delete(k_siginfo_t *); 615 extern void sigcld_repost(void); 616 extern int fsig(k_sigset_t *, kthread_t *); 617 extern void psig(void); 618 extern void stop(int, int); 619 extern int stop_on_fault(uint_t, k_siginfo_t *); 620 extern int issig(int); 621 extern int jobstopped(proc_t *); 622 extern void psignal(proc_t *, int); 623 extern void tsignal(kthread_t *, int); 624 extern void sigtoproc(proc_t *, kthread_t *, int); 625 extern void trapsig(k_siginfo_t *, int); 626 extern void realsigprof(int, int, int); 627 extern int eat_signal(kthread_t *, int); 628 extern int signal_is_blocked(kthread_t *, int); 629 extern int sigcheck(proc_t *, kthread_t *); 630 extern void sigdefault(proc_t *); 631 632 extern void pid_setmin(void); 633 extern pid_t pid_allocate(proc_t *, pid_t, int); 634 extern int pid_rele(struct pid *); 635 extern void pid_exit(proc_t *, struct task *); 636 extern void proc_entry_free(struct pid *); 637 extern proc_t *prfind(pid_t); 638 extern proc_t *prfind_zone(pid_t, zoneid_t); 639 extern proc_t *pgfind(pid_t); 640 extern proc_t *pgfind_zone(pid_t, zoneid_t); 641 extern proc_t *sprlock(pid_t); 642 extern proc_t *sprlock_zone(pid_t, zoneid_t); 643 extern int sprtrylock_proc(proc_t *); 644 extern void sprwaitlock_proc(proc_t *); 645 extern void sprlock_proc(proc_t *); 646 extern void sprunlock(proc_t *); 647 extern void pid_init(void); 648 extern proc_t *pid_entry(int); 649 extern int pid_slot(proc_t *); 650 extern void signal(pid_t, int); 651 extern void prsignal(struct pid *, int); 652 extern int uread(proc_t *, void *, size_t, uintptr_t); 653 extern int uwrite(proc_t *, void *, size_t, uintptr_t); 654 655 extern void pgsignal(struct pid *, int); 656 extern void pgjoin(proc_t *, struct pid *); 657 extern void pgcreate(proc_t *); 658 extern void pgexit(proc_t *); 659 extern void pgdetach(proc_t *); 660 extern int pgmembers(pid_t); 661 662 extern void init_mstate(kthread_t *, int); 663 extern int new_mstate(kthread_t *, int); 664 extern void restore_mstate(kthread_t *); 665 extern void term_mstate(kthread_t *); 666 extern void estimate_msacct(kthread_t *, hrtime_t); 667 extern void disable_msacct(proc_t *); 668 extern hrtime_t mstate_aggr_state(proc_t *, int); 669 extern hrtime_t mstate_thread_onproc_time(kthread_t *); 670 extern void mstate_systhread_times(kthread_t *, hrtime_t *, hrtime_t *); 671 extern void syscall_mstate(int, int); 672 673 extern uint_t cpu_update_pct(kthread_t *, hrtime_t); 674 675 extern void set_proc_pre_sys(proc_t *p); 676 extern void set_proc_post_sys(proc_t *p); 677 extern void set_proc_sys(proc_t *p); 678 extern void set_proc_ast(proc_t *p); 679 extern void set_all_proc_sys(void); 680 extern void set_all_zone_usr_proc_sys(zoneid_t); 681 682 /* thread function prototypes */ 683 684 extern kthread_t *thread_create( 685 caddr_t stk, 686 size_t stksize, 687 void (*proc)(), 688 void *arg, 689 size_t len, 690 proc_t *pp, 691 int state, 692 pri_t pri); 693 extern void thread_exit(void) __NORETURN; 694 extern void thread_free(kthread_t *); 695 extern void thread_rele(kthread_t *); 696 extern void thread_join(kt_did_t); 697 extern int reaper(void); 698 extern void installctx(kthread_t *, void *, void (*)(), void (*)(), 699 void (*)(), void (*)(), void (*)(), void (*)()); 700 extern int removectx(kthread_t *, void *, void (*)(), void (*)(), 701 void (*)(), void (*)(), void (*)(), void (*)()); 702 extern void savectx(kthread_t *); 703 extern void restorectx(kthread_t *); 704 extern void forkctx(kthread_t *, kthread_t *); 705 extern void lwp_createctx(kthread_t *, kthread_t *); 706 extern void exitctx(kthread_t *); 707 extern void freectx(kthread_t *, int); 708 extern void installpctx(proc_t *, void *, void (*)(), void (*)(), 709 void (*)(), void (*)(), void (*)()); 710 extern int removepctx(proc_t *, void *, void (*)(), void (*)(), 711 void (*)(), void (*)(), void (*)()); 712 extern void savepctx(proc_t *); 713 extern void restorepctx(proc_t *); 714 extern void forkpctx(proc_t *, proc_t *); 715 extern void exitpctx(proc_t *); 716 extern void freepctx(proc_t *, int); 717 extern kthread_t *thread_unpin(void); 718 extern void thread_init(void); 719 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t); 720 721 extern void tsd_create(uint_t *, void (*)(void *)); 722 extern void tsd_destroy(uint_t *); 723 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void)); 724 extern void *tsd_get(uint_t); 725 extern int tsd_set(uint_t, void *); 726 extern void tsd_exit(void); 727 extern void *tsd_agent_get(kthread_t *, uint_t); 728 extern int tsd_agent_set(kthread_t *, uint_t, void *); 729 730 /* lwp function prototypes */ 731 732 extern kthread_t *lwp_kernel_create(proc_t *, void (*)(), void *, int, pri_t); 733 extern klwp_t *lwp_create( 734 void (*proc)(), 735 caddr_t arg, 736 size_t len, 737 proc_t *p, 738 int state, 739 int pri, 740 const k_sigset_t *smask, 741 int cid, 742 id_t lwpid); 743 extern kthread_t *idtot(proc_t *, id_t); 744 extern void lwp_hash_in(proc_t *, lwpent_t *, tidhash_t *, uint_t, int); 745 extern void lwp_hash_out(proc_t *, id_t); 746 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t); 747 extern lwpdir_t *lwp_hash_lookup_and_lock(proc_t *, id_t, kmutex_t **); 748 extern void lwp_create_done(kthread_t *); 749 extern void lwp_exit(void); 750 extern void lwp_pcb_exit(void); 751 extern void lwp_cleanup(void); 752 extern int lwp_suspend(kthread_t *); 753 extern void lwp_continue(kthread_t *); 754 extern void holdlwp(void); 755 extern void stoplwp(void); 756 extern int holdlwps(int); 757 extern int holdwatch(void); 758 extern void pokelwps(proc_t *); 759 extern void continuelwps(proc_t *); 760 extern int exitlwps(int); 761 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *); 762 extern void lwp_ctmpl_clear(klwp_t *); 763 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t); 764 extern void lwp_load(klwp_t *, gregset_t, uintptr_t); 765 extern void lwp_setrval(klwp_t *, int, int); 766 extern void lwp_forkregs(klwp_t *, klwp_t *); 767 extern void lwp_freeregs(klwp_t *, int); 768 extern caddr_t lwp_stk_init(klwp_t *, caddr_t); 769 extern void lwp_stk_cache_init(void); 770 extern void lwp_stk_fini(klwp_t *); 771 extern void lwp_installctx(klwp_t *); 772 extern void lwp_rtt(void); 773 extern void lwp_rtt_initial(void); 774 extern int lwp_setprivate(klwp_t *, int, uintptr_t); 775 extern void lwp_stat_update(lwp_stat_id_t, long); 776 extern void lwp_attach_brand_hdlrs(klwp_t *); 777 extern void lwp_detach_brand_hdlrs(klwp_t *); 778 779 #if defined(__sparcv9) 780 extern void lwp_mmodel_newlwp(void); 781 extern void lwp_mmodel_shared_as(caddr_t, size_t); 782 #define LWP_MMODEL_NEWLWP() lwp_mmodel_newlwp() 783 #define LWP_MMODEL_SHARED_AS(addr, sz) lwp_mmodel_shared_as((addr), (sz)) 784 #else 785 #define LWP_MMODEL_NEWLWP() 786 #define LWP_MMODEL_SHARED_AS(addr, sz) 787 #endif 788 789 /* 790 * Signal queue function prototypes. Must be here due to header ordering 791 * dependencies. 792 */ 793 extern void sigqfree(proc_t *); 794 extern void siginfofree(sigqueue_t *); 795 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **); 796 extern void sigdelq(proc_t *, kthread_t *, int); 797 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int); 798 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *); 799 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *); 800 extern void sigdupq(proc_t *, proc_t *); 801 extern int sigwillqueue(int, int); 802 extern sigqhdr_t *sigqhdralloc(size_t, uint_t); 803 extern sigqueue_t *sigqalloc(sigqhdr_t *); 804 extern void sigqhdrfree(sigqhdr_t *); 805 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *, 806 k_sigset_t *, sigqueue_t *); 807 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *, 808 k_sigset_t *, sigqueue_t *); 809 extern void winfo(proc_t *, k_siginfo_t *, int); 810 extern int wstat(int, int); 811 extern int sendsig(int, k_siginfo_t *, void (*)()); 812 #if defined(_SYSCALL32_IMPL) 813 extern int sendsig32(int, k_siginfo_t *, void (*)()); 814 #endif 815 816 #endif /* _KERNEL */ 817 818 #ifdef __cplusplus 819 } 820 #endif 821 822 #endif /* _SYS_PROC_H */ 823