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