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 * Copyright 2018 Joyent, Inc. 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 #include <sys/time.h> 34 #include <sys/thread.h> 35 #include <sys/cred.h> 36 #include <sys/user.h> 37 #include <sys/watchpoint.h> 38 #include <sys/timer.h> 39 #if defined(__x86) 40 #include <sys/tss.h> 41 #include <sys/segments.h> 42 #endif 43 #include <sys/utrap.h> 44 #include <sys/model.h> 45 #include <sys/refstr.h> 46 #include <sys/avl.h> 47 #include <sys/rctl.h> 48 #include <sys/list.h> 49 #include <sys/avl.h> 50 #include <sys/door_impl.h> 51 #include <sys/signalfd.h> 52 #include <sys/secflags.h> 53 54 #ifdef __cplusplus 55 extern "C" { 56 #endif 57 58 /* 59 * Profile arguments. 60 */ 61 struct prof { 62 void *pr_base; /* buffer base */ 63 uintptr_t pr_off; /* pc offset */ 64 size_t pr_size; /* buffer size */ 65 uint32_t pr_scale; /* pc scaling */ 66 long pr_samples; /* sample count */ 67 }; 68 69 /* 70 * An lwp directory entry. 71 * If le_thread != NULL, this is an active lwp. 72 * If le_thread == NULL, this is an unreaped zombie lwp. 73 */ 74 typedef struct lwpent { 75 kthread_t *le_thread; /* the active lwp, NULL if zombie */ 76 id_t le_lwpid; /* its lwpid (t->t_tid) */ 77 uint16_t le_waiters; /* total number of lwp_wait()ers */ 78 uint16_t le_dwaiters; /* number that are daemons */ 79 clock_t le_start; /* start time of this lwp */ 80 struct vnode *le_trace; /* pointer to /proc lwp vnode */ 81 } lwpent_t; 82 83 typedef struct pctxop { 84 void (*save_op)(void *); /* function to invoke to save ctx */ 85 void (*restore_op)(void *); /* function to invoke to restore ctx */ 86 void (*fork_op)(void *, void *); /* invoke to fork context */ 87 void (*exit_op)(void *); /* invoked during process exit */ 88 void (*free_op)(void *, int); /* function which frees the context */ 89 void *arg; /* argument to above functions */ 90 struct pctxop *next; /* next pcontext ops */ 91 } pctxop_t; 92 93 /* 94 * Elements of the lwp directory, p->p_lwpdir[]. 95 * 96 * We allocate lwp directory entries separately from lwp directory 97 * elements because the lwp directory must be allocated as an array. 98 * The number of lwps can grow quite large and we want to keep the 99 * size of the kmem_alloc()d directory as small as possible. 100 * 101 * If ld_entry == NULL, the entry is free and is on the free list, 102 * p->p_lwpfree, linked through ld_next. If ld_entry != NULL, the 103 * entry is used and ld_next is the thread-id hash link pointer. 104 */ 105 typedef struct lwpdir { 106 struct lwpdir *ld_next; /* hash chain or free list */ 107 struct lwpent *ld_entry; /* lwp directory entry */ 108 } lwpdir_t; 109 110 /* 111 * Element of the p_tidhash thread-id (lwpid) hash table. 112 */ 113 typedef struct tidhash { 114 kmutex_t th_lock; 115 lwpdir_t *th_list; 116 } tidhash_t; 117 118 /* 119 * Retired tidhash hash tables. 120 */ 121 typedef struct ret_tidhash { 122 struct ret_tidhash *rth_next; 123 tidhash_t *rth_tidhash; 124 uint_t rth_tidhash_sz; 125 } ret_tidhash_t; 126 127 struct pool; 128 struct task; 129 struct zone; 130 struct brand; 131 struct corectl_path; 132 struct corectl_content; 133 134 /* 135 * One structure allocated per active process. It contains all 136 * data needed about the process while the process may be swapped 137 * out. Other per-process data (user.h) is also inside the proc structure. 138 * Lightweight-process data (lwp.h) and the kernel stack may be swapped out. 139 */ 140 typedef struct proc { 141 /* 142 * Fields requiring no explicit locking 143 */ 144 struct vnode *p_exec; /* pointer to a.out vnode */ 145 struct as *p_as; /* process address space pointer */ 146 struct plock *p_lockp; /* ptr to proc struct's mutex lock */ 147 kmutex_t p_crlock; /* lock for p_cred */ 148 struct cred *p_cred; /* process credentials */ 149 /* 150 * Fields protected by pidlock 151 */ 152 int p_swapcnt; /* number of swapped out lwps */ 153 char p_stat; /* status of process */ 154 char p_wcode; /* current wait code */ 155 ushort_t p_pidflag; /* flags protected only by pidlock */ 156 int p_wdata; /* current wait return value */ 157 pid_t p_ppid; /* process id of parent */ 158 struct proc *p_link; /* forward link */ 159 struct proc *p_parent; /* ptr to parent process */ 160 struct proc *p_child; /* ptr to first child process */ 161 struct proc *p_sibling; /* ptr to next sibling proc on chain */ 162 struct proc *p_psibling; /* ptr to prev sibling proc on chain */ 163 struct proc *p_sibling_ns; /* prt to siblings with new state */ 164 struct proc *p_child_ns; /* prt to children with new state */ 165 struct proc *p_next; /* active chain link next */ 166 struct proc *p_prev; /* active chain link prev */ 167 struct proc *p_nextofkin; /* gets accounting info at exit */ 168 struct proc *p_orphan; 169 struct proc *p_nextorph; 170 struct proc *p_pglink; /* process group hash chain link next */ 171 struct proc *p_ppglink; /* process group hash chain link prev */ 172 struct sess *p_sessp; /* session information */ 173 struct pid *p_pidp; /* process ID info */ 174 struct pid *p_pgidp; /* process group ID info */ 175 /* 176 * Fields protected by p_lock 177 */ 178 kcondvar_t p_cv; /* proc struct's condition variable */ 179 kcondvar_t p_flag_cv; 180 kcondvar_t p_lwpexit; /* waiting for some lwp to exit */ 181 kcondvar_t p_holdlwps; /* process is waiting for its lwps */ 182 /* to to be held. */ 183 uint_t p_proc_flag; /* /proc-related flags */ 184 uint_t p_flag; /* protected while set. */ 185 /* flags defined below */ 186 clock_t p_utime; /* user time, this process */ 187 clock_t p_stime; /* system time, this process */ 188 clock_t p_cutime; /* sum of children's user time */ 189 clock_t p_cstime; /* sum of children's system time */ 190 avl_tree_t *p_segacct; /* System V shared segment list */ 191 avl_tree_t *p_semacct; /* System V semaphore undo list */ 192 caddr_t p_bssbase; /* base addr of last bss below heap */ 193 caddr_t p_brkbase; /* base addr of heap */ 194 size_t p_brksize; /* heap size in bytes */ 195 uint_t p_brkpageszc; /* preferred heap max page size code */ 196 /* 197 * Per process signal stuff. 198 */ 199 k_sigset_t p_sig; /* signals pending to this process */ 200 k_sigset_t p_extsig; /* signals sent from another contract */ 201 k_sigset_t p_ignore; /* ignore when generated */ 202 k_sigset_t p_siginfo; /* gets signal info with signal */ 203 void *p_sigfd; /* signalfd support state */ 204 struct sigqueue *p_sigqueue; /* queued siginfo structures */ 205 struct sigqhdr *p_sigqhdr; /* hdr to sigqueue structure pool */ 206 struct sigqhdr *p_signhdr; /* hdr to signotify structure pool */ 207 uchar_t p_stopsig; /* jobcontrol stop signal */ 208 209 /* 210 * Special per-process flag when set will fix misaligned memory 211 * references. 212 */ 213 char p_fixalignment; 214 215 /* 216 * Per process lwp and kernel thread stuff 217 */ 218 id_t p_lwpid; /* most recently allocated lwpid */ 219 int p_lwpcnt; /* number of lwps in this process */ 220 int p_lwprcnt; /* number of not stopped lwps */ 221 int p_lwpdaemon; /* number of TP_DAEMON lwps */ 222 int p_lwpwait; /* number of lwps in lwp_wait() */ 223 int p_lwpdwait; /* number of daemons in lwp_wait() */ 224 int p_zombcnt; /* number of zombie lwps */ 225 kthread_t *p_tlist; /* circular list of threads */ 226 lwpdir_t *p_lwpdir; /* thread (lwp) directory */ 227 lwpdir_t *p_lwpfree; /* p_lwpdir free list */ 228 tidhash_t *p_tidhash; /* tid (lwpid) lookup hash table */ 229 uint_t p_lwpdir_sz; /* number of p_lwpdir[] entries */ 230 uint_t p_tidhash_sz; /* number of p_tidhash[] entries */ 231 ret_tidhash_t *p_ret_tidhash; /* retired tidhash hash tables */ 232 uint64_t p_lgrpset; /* unprotected hint of set of lgrps */ 233 /* on which process has threads */ 234 volatile lgrp_id_t p_t1_lgrpid; /* main's thread lgroup id */ 235 volatile lgrp_id_t p_tr_lgrpid; /* text replica's lgroup id */ 236 #if defined(_LP64) 237 uintptr_t p_lgrpres2; /* reserved for lgrp migration */ 238 #endif 239 /* 240 * /proc (process filesystem) debugger interface stuff. 241 */ 242 k_sigset_t p_sigmask; /* mask of traced signals (/proc) */ 243 k_fltset_t p_fltmask; /* mask of traced faults (/proc) */ 244 struct vnode *p_trace; /* pointer to primary /proc vnode */ 245 struct vnode *p_plist; /* list of /proc vnodes for process */ 246 kthread_t *p_agenttp; /* thread ptr for /proc agent lwp */ 247 avl_tree_t p_warea; /* list of watched areas */ 248 avl_tree_t p_wpage; /* remembered watched pages (vfork) */ 249 watched_page_t *p_wprot; /* pages that need to have prot set */ 250 int p_mapcnt; /* number of active pr_mappage()s */ 251 kmutex_t p_maplock; /* lock for pr_mappage() */ 252 struct proc *p_rlink; /* linked list for server */ 253 kcondvar_t p_srwchan_cv; 254 255 /* 256 * Stack sizing and guard information. 257 * Generally protected by as_rangelock() 258 */ 259 size_t p_stksize; /* process stack size in bytes */ 260 uint_t p_stkpageszc; /* preferred stack max page size code */ 261 uintptr_t p_stkg_start; /* start of stack guard */ 262 uintptr_t p_stkg_end; /* end of stack guard */ 263 264 /* 265 * Microstate accounting, resource usage, and real-time profiling 266 */ 267 hrtime_t p_mstart; /* hi-res process start time */ 268 hrtime_t p_mterm; /* hi-res process termination time */ 269 hrtime_t p_mlreal; /* elapsed time sum over defunct lwps */ 270 hrtime_t p_acct[NMSTATES]; /* microstate sum over defunct lwps */ 271 hrtime_t p_cacct[NMSTATES]; /* microstate sum over child procs */ 272 struct lrusage p_ru; /* lrusage sum over defunct lwps */ 273 struct lrusage p_cru; /* lrusage sum over child procs */ 274 struct itimerval p_rprof_timer; /* ITIMER_REALPROF interval timer */ 275 uintptr_t p_rprof_cyclic; /* ITIMER_REALPROF cyclic */ 276 uint_t p_defunct; /* number of defunct lwps */ 277 /* 278 * profiling. A lock is used in the event of multiple lwp's 279 * using the same profiling base/size. 280 */ 281 kmutex_t p_pflock; /* protects user profile arguments */ 282 struct prof p_prof; /* profile arguments */ 283 284 /* 285 * Doors. 286 */ 287 door_pool_t p_server_threads; /* common thread pool */ 288 struct door_node *p_door_list; /* active doors */ 289 struct door_node *p_unref_list; 290 kcondvar_t p_unref_cv; 291 char p_unref_thread; /* unref thread created */ 292 293 /* 294 * Kernel probes 295 */ 296 uchar_t p_tnf_flags; 297 298 /* 299 * Solaris Audit 300 */ 301 struct p_audit_data *p_audit_data; /* per process audit structure */ 302 303 pctxop_t *p_pctx; 304 305 #if defined(__x86) 306 /* 307 * LDT support. 308 */ 309 kmutex_t p_ldtlock; /* protects the following fields */ 310 user_desc_t *p_ldt; /* Pointer to private LDT */ 311 uint64_t p_unused1; /* no longer used */ 312 uint64_t p_unused2; /* no longer used */ 313 ushort_t p_ldtlimit; /* highest selector used */ 314 #endif 315 size_t p_swrss; /* resident set size before last swap */ 316 struct aio *p_aio; /* pointer to async I/O struct */ 317 struct itimer **p_itimer; /* interval timers */ 318 timeout_id_t p_alarmid; /* alarm's timeout id */ 319 caddr_t p_usrstack; /* top of the process stack */ 320 uint_t p_stkprot; /* stack memory protection */ 321 uint_t p_datprot; /* data memory protection */ 322 model_t p_model; /* data model determined at exec time */ 323 struct lwpchan_data *p_lcp; /* lwpchan cache */ 324 kmutex_t p_lcp_lock; /* protects assignments to p_lcp */ 325 utrap_handler_t *p_utraps; /* pointer to user trap handlers */ 326 struct corectl_path *p_corefile; /* pattern for core file */ 327 struct task *p_task; /* our containing task */ 328 struct proc *p_taskprev; /* ptr to previous process in task */ 329 struct proc *p_tasknext; /* ptr to next process in task */ 330 kmutex_t p_sc_lock; /* protects p_pagep */ 331 struct sc_page_ctl *p_pagep; /* list of process's shared pages */ 332 struct rctl_set *p_rctls; /* resource controls for this process */ 333 rlim64_t p_stk_ctl; /* currently enforced stack size */ 334 rlim64_t p_fsz_ctl; /* currently enforced file size */ 335 rlim64_t p_vmem_ctl; /* currently enforced addr-space size */ 336 rlim64_t p_fno_ctl; /* currently enforced file-desc limit */ 337 pid_t p_ancpid; /* ancestor pid, used by exacct */ 338 struct itimerval p_realitimer; /* real interval timer */ 339 timeout_id_t p_itimerid; /* real interval timer's timeout id */ 340 struct corectl_content *p_content; /* content of core file */ 341 342 avl_tree_t p_ct_held; /* held contracts */ 343 struct ct_equeue **p_ct_equeue; /* process-type event queues */ 344 345 struct cont_process *p_ct_process; /* process contract */ 346 list_node_t p_ct_member; /* process contract membership */ 347 sigqueue_t *p_killsqp; /* sigqueue pointer for SIGKILL */ 348 349 int p_dtrace_probes; /* are there probes for this proc? */ 350 uint64_t p_dtrace_count; /* number of DTrace tracepoints */ 351 /* (protected by P_PR_LOCK) */ 352 void *p_dtrace_helpers; /* DTrace helpers, if any */ 353 struct pool *p_pool; /* pointer to containing pool */ 354 kcondvar_t p_poolcv; /* synchronization with pools */ 355 uint_t p_poolcnt; /* # threads inside pool barrier */ 356 uint_t p_poolflag; /* pool-related flags (see below) */ 357 uintptr_t p_portcnt; /* event ports counter */ 358 struct zone *p_zone; /* zone in which process lives */ 359 struct vnode *p_execdir; /* directory that p_exec came from */ 360 struct brand *p_brand; /* process's brand */ 361 void *p_brand_data; /* per-process brand state */ 362 psecflags_t p_secflags; /* per-process security flags */ 363 364 /* additional lock to protect p_sessp (but not its contents) */ 365 kmutex_t p_splock; 366 rctl_qty_t p_locked_mem; /* locked memory charged to proc */ 367 /* protected by p_lock */ 368 rctl_qty_t p_crypto_mem; /* /dev/crypto memory charged to proc */ 369 /* protected by p_lock */ 370 clock_t p_ttime; /* buffered task time */ 371 372 /* 373 * The user structure 374 */ 375 struct user p_user; /* (see sys/user.h) */ 376 } proc_t; 377 378 #define PROC_T /* headers relying on proc_t are OK */ 379 380 #ifdef _KERNEL 381 382 /* active process chain */ 383 384 extern proc_t *practive; 385 386 /* Well known processes */ 387 388 extern proc_t *proc_sched; /* memory scheduler */ 389 extern proc_t *proc_init; /* init */ 390 extern proc_t *proc_pageout; /* pageout daemon */ 391 extern proc_t *proc_fsflush; /* filesystem sync-er */ 392 393 #endif /* _KERNEL */ 394 395 /* 396 * Stuff to keep track of the number of processes each uid has. 397 * It is tracked on a per-zone basis; that is, if users in different 398 * zones have the same uid, they are tracked separately. 399 * 400 * A structure is allocated when a new <uid,zoneid> pair shows up 401 * There is a hash to find each structure. 402 */ 403 struct upcount { 404 struct upcount *up_next; 405 uid_t up_uid; 406 zoneid_t up_zoneid; 407 uint_t up_count; 408 }; 409 410 /* process ID info */ 411 412 struct pid { 413 unsigned int pid_prinactive :1; 414 unsigned int pid_pgorphaned :1; 415 unsigned int pid_padding :6; /* used to be pid_ref, now an int */ 416 unsigned int pid_prslot :24; 417 pid_t pid_id; 418 struct proc *pid_pglink; 419 struct proc *pid_pgtail; 420 struct pid *pid_link; 421 uint_t pid_ref; 422 }; 423 424 #define p_pgrp p_pgidp->pid_id 425 #define p_pid p_pidp->pid_id 426 #define p_slot p_pidp->pid_prslot 427 #define p_detached p_pgidp->pid_pgorphaned 428 429 #define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 430 ++(pidp)->pid_ref; 431 #define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \ 432 (pidp)->pid_ref > 1 ? \ 433 --(pidp)->pid_ref : pid_rele(pidp); 434 435 /* 436 * Structure containing persistent process lock. The structure and 437 * macro allow "mutex_enter(&p->p_lock)" to continue working. 438 */ 439 struct plock { 440 kmutex_t pl_lock; 441 }; 442 #define p_lock p_lockp->pl_lock 443 444 #ifdef _KERNEL 445 extern proc_t p0; /* process 0 */ 446 extern struct plock p0lock; /* p0's plock */ 447 extern struct pid pid0; /* p0's pid */ 448 449 /* pid_allocate() flags */ 450 #define PID_ALLOC_PROC 0x0001 /* assign a /proc slot as well */ 451 452 #endif /* _KERNEL */ 453 454 /* stat codes */ 455 456 #define SSLEEP 1 /* awaiting an event */ 457 #define SRUN 2 /* runnable */ 458 #define SZOMB 3 /* process terminated but not waited for */ 459 #define SSTOP 4 /* process stopped by debugger */ 460 #define SIDL 5 /* intermediate state in process creation */ 461 #define SONPROC 6 /* process is being run on a processor */ 462 #define SWAIT 7 /* process is waiting to become runnable */ 463 464 /* p_pidflag codes */ 465 #define CLDPEND 0x0001 /* have yet to post a SIGCHLD to the parent */ 466 #define CLDCONT 0x0002 /* child has notified parent of CLD_CONTINUED */ 467 #define CLDNOSIGCHLD 0x0004 /* do not post SIGCHLD when child terminates */ 468 #define CLDWAITPID 0x0008 /* only waitid(P_PID, pid) can reap the child */ 469 470 /* p_proc_flag codes -- these flags are mostly private to /proc */ 471 #define P_PR_TRACE 0x0001 /* signal, fault or syscall tracing via /proc */ 472 #define P_PR_PTRACE 0x0002 /* ptrace() compatibility mode */ 473 #define P_PR_FORK 0x0004 /* child inherits tracing flags */ 474 #define P_PR_LOCK 0x0008 /* process locked by /proc */ 475 #define P_PR_ASYNC 0x0010 /* asynchronous stopping via /proc */ 476 #define P_PR_EXEC 0x0020 /* process is in exec() */ 477 #define P_PR_BPTADJ 0x0040 /* adjust pc on breakpoint trap */ 478 #define P_PR_RUNLCL 0x0080 /* set process running on last /proc close */ 479 #define P_PR_KILLCL 0x0100 /* kill process on last /proc close */ 480 481 /* 482 * p_flag codes 483 * 484 * note that two of these flags, SMSACCT and SSYS, are exported to /proc's 485 * psinfo_t.p_flag field. Historically, all were, but since they are 486 * implementation dependant, we only export the ones people have come to 487 * rely upon. Hence, the bit positions of SSYS and SMSACCT should not be 488 * altered. 489 */ 490 #define SSYS 0x00000001 /* system (resident) process */ 491 #define SEXITING 0x00000002 /* process is exiting */ 492 #define SITBUSY 0x00000004 /* setitimer(ITIMER_REAL) in progress */ 493 #define SFORKING 0x00000008 /* tells called functions that we're forking */ 494 #define SWATCHOK 0x00000010 /* proc in acceptable state for watchpoints */ 495 #define SKILLED 0x00000100 /* SIGKILL has been posted to the process */ 496 #define SSCONT 0x00000200 /* SIGCONT has been posted to the process */ 497 #define SZONETOP 0x00000400 /* process has no valid PPID in its zone */ 498 #define SEXTKILLED 0x00000800 /* SKILLED is from another contract */ 499 #define SUGID 0x00002000 /* process was result of set[ug]id exec */ 500 #define SEXECED 0x00004000 /* this process has execed */ 501 #define SJCTL 0x00010000 /* SIGCHLD sent when children stop/continue */ 502 #define SNOWAIT 0x00020000 /* children never become zombies */ 503 #define SVFORK 0x00040000 /* child of vfork that has not yet exec'd */ 504 #define SVFWAIT 0x00080000 /* parent of vfork waiting for child to exec */ 505 #define SEXITLWPS 0x00100000 /* have lwps exit within the process */ 506 #define SHOLDFORK 0x00200000 /* hold lwps where they're cloneable */ 507 #define SHOLDFORK1 0x00800000 /* hold lwps in place (not cloning) */ 508 #define SCOREDUMP 0x01000000 /* process is dumping core */ 509 #define SMSACCT 0x02000000 /* process is keeping micro-state accounting */ 510 #define SLWPWRAP 0x04000000 /* process has wrapped its lwp ids */ 511 #define SAUTOLPG 0x08000000 /* kernel controls page sizes */ 512 #define SNOCD 0x10000000 /* new creds from VSxID, do not coredump */ 513 #define SHOLDWATCH 0x20000000 /* hold lwps for watchpoint operation */ 514 #define SMSFORK 0x40000000 /* child inherits micro-state accounting */ 515 #define SDOCORE 0x80000000 /* process will attempt to dump core */ 516 517 /* 518 * p_poolflag codes 519 * 520 * These flags are used to synchronize with the pool subsystem to allow 521 * re-binding of processes to new pools. 522 */ 523 #define PBWAIT 0x0001 /* process should wait outside fork/exec/exit */ 524 #define PEXITED 0x0002 /* process exited and about to become zombie */ 525 526 /* Macro to convert proc pointer to a user block pointer */ 527 #define PTOU(p) (&(p)->p_user) 528 529 #define tracing(p, sig) (sigismember(&(p)->p_sigmask, sig)) 530 531 /* Macro to reduce unnecessary calls to issig() */ 532 533 #define ISSIG(t, why) ISSIG_FAST(t, ttolwp(t), ttoproc(t), why) 534 535 /* 536 * Fast version of ISSIG. 537 * 1. uses register pointers to lwp and proc instead of reloading them. 538 * 2. uses bit-wise OR of tests, since the usual case is that none of them 539 * are true, this saves orcc's and branches. 540 * 3. load the signal flags instead of using sigisempty() macro which does 541 * a branch to convert to boolean. 542 */ 543 #define ISSIG_FAST(t, lwp, p, why) \ 544 (ISSIG_PENDING(t, lwp, p) && issig(why)) 545 546 #define ISSIG_PENDING(t, lwp, p) \ 547 ((lwp)->lwp_cursig | \ 548 sigcheck((p), (t)) | \ 549 (p)->p_stopsig | \ 550 (t)->t_dtrace_stop | \ 551 (t)->t_dtrace_sig | \ 552 ((t)->t_proc_flag & (TP_PRSTOP|TP_HOLDLWP|TP_CHKPT|TP_PAUSE)) | \ 553 ((p)->p_flag & (SEXITLWPS|SKILLED|SHOLDFORK1|SHOLDWATCH))) 554 555 #define ISSTOP(sig) (u.u_signal[sig-1] == SIG_DFL && \ 556 sigismember(&stopdefault, sig)) 557 558 #define ISHOLD(p) ((p)->p_flag & SHOLDFORK) 559 560 #define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale) 561 562 /* 563 * Determine if there are any watchpoints active in the process. 564 */ 565 #define pr_watch_active(p) (avl_numnodes(&(p)->p_warea) != 0) 566 567 /* Reasons for calling issig() */ 568 569 #define FORREAL 0 /* Usual side-effects */ 570 #define JUSTLOOKING 1 /* Don't stop the process */ 571 572 /* 'what' values for stop(PR_SUSPENDED, what) */ 573 #define SUSPEND_NORMAL 0 574 #define SUSPEND_PAUSE 1 575 576 /* pseudo-flag to lwp_create() */ 577 #define NOCLASS (-1) 578 579 /* unused scheduling class ID */ 580 #define CLASS_UNUSED (-2) 581 582 /* LWP stats updated via lwp_stats_update() */ 583 typedef enum { 584 LWP_STAT_INBLK, 585 LWP_STAT_OUBLK, 586 LWP_STAT_MSGRCV, 587 LWP_STAT_MSGSND 588 } lwp_stat_id_t; 589 590 typedef struct prkillinfo { 591 int32_t prk_error; /* errno */ 592 int32_t prk_pad; /* pad */ 593 siginfo_t prk_info; /* siginfo of killing signal */ 594 } prkillinfo_t; 595 596 #ifdef _KERNEL 597 598 /* user profiling functions */ 599 600 extern void profil_tick(uintptr_t); 601 602 /* process management functions */ 603 604 extern int newproc(void (*)(), caddr_t, id_t, int, struct contract **, pid_t); 605 extern void vfwait(pid_t); 606 extern void proc_detach(proc_t *); 607 extern void freeproc(proc_t *); 608 extern void setrun(kthread_t *); 609 extern void setrun_locked(kthread_t *); 610 extern void exit(int, int); 611 extern int proc_exit(int, int); 612 extern void proc_is_exiting(proc_t *); 613 extern void relvm(void); 614 extern void add_ns(proc_t *, proc_t *); 615 extern void delete_ns(proc_t *, proc_t *); 616 extern void upcount_inc(uid_t, zoneid_t); 617 extern void upcount_dec(uid_t, zoneid_t); 618 extern int upcount_get(uid_t, zoneid_t); 619 #if defined(__x86) 620 extern selector_t setup_thrptr(proc_t *, uintptr_t); 621 extern void deferred_singlestep_trap(caddr_t); 622 #endif 623 624 extern void sigcld(proc_t *, sigqueue_t *); 625 extern void sigcld_delete(k_siginfo_t *); 626 extern void sigcld_repost(void); 627 extern int fsig(k_sigset_t *, kthread_t *); 628 extern void psig(void); 629 extern void stop(int, int); 630 extern int stop_on_fault(uint_t, k_siginfo_t *); 631 extern int issig(int); 632 extern int jobstopped(proc_t *); 633 extern void psignal(proc_t *, int); 634 extern void tsignal(kthread_t *, int); 635 extern void sigtoproc(proc_t *, kthread_t *, int); 636 extern void trapsig(k_siginfo_t *, int); 637 extern void realsigprof(int, int, int); 638 extern int eat_signal(kthread_t *, int); 639 extern int signal_is_blocked(kthread_t *, int); 640 extern int sigcheck(proc_t *, kthread_t *); 641 extern void sigdefault(proc_t *); 642 643 extern void pid_setmin(void); 644 extern pid_t pid_allocate(proc_t *, pid_t, int); 645 extern int pid_rele(struct pid *); 646 extern void pid_exit(proc_t *, struct task *); 647 extern void proc_entry_free(struct pid *); 648 extern proc_t *prfind(pid_t); 649 extern proc_t *prfind_zone(pid_t, zoneid_t); 650 extern proc_t *pgfind(pid_t); 651 extern proc_t *pgfind_zone(pid_t, zoneid_t); 652 extern proc_t *sprlock(pid_t); 653 extern proc_t *sprlock_zone(pid_t, zoneid_t); 654 extern int sprtrylock_proc(proc_t *); 655 extern void sprwaitlock_proc(proc_t *); 656 extern void sprlock_proc(proc_t *); 657 extern void sprunlock(proc_t *); 658 extern void pid_init(void); 659 extern proc_t *pid_entry(int); 660 extern int pid_slot(proc_t *); 661 extern void signal(pid_t, int); 662 extern void prsignal(struct pid *, int); 663 extern int uread(proc_t *, void *, size_t, uintptr_t); 664 extern int uwrite(proc_t *, void *, size_t, uintptr_t); 665 666 extern void pgsignal(struct pid *, int); 667 extern void pgjoin(proc_t *, struct pid *); 668 extern void pgcreate(proc_t *); 669 extern void pgexit(proc_t *); 670 extern void pgdetach(proc_t *); 671 extern int pgmembers(pid_t); 672 673 extern void init_mstate(kthread_t *, int); 674 extern int new_mstate(kthread_t *, int); 675 extern void restore_mstate(kthread_t *); 676 extern void term_mstate(kthread_t *); 677 extern void estimate_msacct(kthread_t *, hrtime_t); 678 extern void disable_msacct(proc_t *); 679 extern hrtime_t mstate_aggr_state(proc_t *, int); 680 extern hrtime_t mstate_thread_onproc_time(kthread_t *); 681 extern void mstate_systhread_times(kthread_t *, hrtime_t *, hrtime_t *); 682 extern void syscall_mstate(int, int); 683 684 extern uint_t cpu_update_pct(kthread_t *, hrtime_t); 685 686 extern void set_proc_pre_sys(proc_t *p); 687 extern void set_proc_post_sys(proc_t *p); 688 extern void set_proc_sys(proc_t *p); 689 extern void set_proc_ast(proc_t *p); 690 extern void set_all_proc_sys(void); 691 extern void set_all_zone_usr_proc_sys(zoneid_t); 692 693 /* thread function prototypes */ 694 695 extern kthread_t *thread_create( 696 caddr_t stk, 697 size_t stksize, 698 void (*proc)(), 699 void *arg, 700 size_t len, 701 proc_t *pp, 702 int state, 703 pri_t pri); 704 extern void thread_exit(void) __NORETURN; 705 extern void thread_free(kthread_t *); 706 extern void thread_rele(kthread_t *); 707 extern void thread_join(kt_did_t); 708 extern int reaper(void); 709 extern void installctx(kthread_t *, void *, void (*)(), void (*)(), 710 void (*)(), void (*)(), void (*)(), void (*)()); 711 extern int removectx(kthread_t *, void *, void (*)(), void (*)(), 712 void (*)(), void (*)(), void (*)(), void (*)()); 713 extern void savectx(kthread_t *); 714 extern void restorectx(kthread_t *); 715 extern void forkctx(kthread_t *, kthread_t *); 716 extern void lwp_createctx(kthread_t *, kthread_t *); 717 extern void exitctx(kthread_t *); 718 extern void freectx(kthread_t *, int); 719 extern void installpctx(proc_t *, void *, void (*)(), void (*)(), 720 void (*)(), void (*)(), void (*)()); 721 extern int removepctx(proc_t *, void *, void (*)(), void (*)(), 722 void (*)(), void (*)(), void (*)()); 723 extern void savepctx(proc_t *); 724 extern void restorepctx(proc_t *); 725 extern void forkpctx(proc_t *, proc_t *); 726 extern void exitpctx(proc_t *); 727 extern void freepctx(proc_t *, int); 728 extern kthread_t *thread_unpin(void); 729 extern void thread_init(void); 730 extern void thread_load(kthread_t *, void (*)(), caddr_t, size_t); 731 732 extern void tsd_create(uint_t *, void (*)(void *)); 733 extern void tsd_destroy(uint_t *); 734 extern void *tsd_getcreate(uint_t *, void (*)(void *), void *(*)(void)); 735 extern void *tsd_get(uint_t); 736 extern int tsd_set(uint_t, void *); 737 extern void tsd_exit(void); 738 extern void *tsd_agent_get(kthread_t *, uint_t); 739 extern int tsd_agent_set(kthread_t *, uint_t, void *); 740 741 /* lwp function prototypes */ 742 743 extern kthread_t *lwp_kernel_create(proc_t *, void (*)(), void *, int, pri_t); 744 extern klwp_t *lwp_create( 745 void (*proc)(), 746 caddr_t arg, 747 size_t len, 748 proc_t *p, 749 int state, 750 int pri, 751 const k_sigset_t *smask, 752 int cid, 753 id_t lwpid); 754 extern kthread_t *idtot(proc_t *, id_t); 755 extern void lwp_hash_in(proc_t *, lwpent_t *, tidhash_t *, uint_t, int); 756 extern void lwp_hash_out(proc_t *, id_t); 757 extern lwpdir_t *lwp_hash_lookup(proc_t *, id_t); 758 extern lwpdir_t *lwp_hash_lookup_and_lock(proc_t *, id_t, kmutex_t **); 759 extern void lwp_create_done(kthread_t *); 760 extern void lwp_exit(void); 761 extern void lwp_pcb_exit(void); 762 extern void lwp_cleanup(void); 763 extern int lwp_suspend(kthread_t *); 764 extern void lwp_continue(kthread_t *); 765 extern void holdlwp(void); 766 extern void stoplwp(void); 767 extern int holdlwps(int); 768 extern int holdwatch(void); 769 extern void pokelwps(proc_t *); 770 extern void continuelwps(proc_t *); 771 extern int exitlwps(int); 772 extern void lwp_ctmpl_copy(klwp_t *, klwp_t *); 773 extern void lwp_ctmpl_clear(klwp_t *); 774 extern klwp_t *forklwp(klwp_t *, proc_t *, id_t); 775 extern void lwp_load(klwp_t *, gregset_t, uintptr_t); 776 extern void lwp_setrval(klwp_t *, int, int); 777 extern void lwp_forkregs(klwp_t *, klwp_t *); 778 extern void lwp_freeregs(klwp_t *, int); 779 extern caddr_t lwp_stk_init(klwp_t *, caddr_t); 780 extern void lwp_stk_cache_init(void); 781 extern void lwp_stk_fini(klwp_t *); 782 extern void lwp_fp_init(klwp_t *); 783 extern void lwp_installctx(klwp_t *); 784 extern void lwp_rtt(void); 785 extern void lwp_rtt_initial(void); 786 extern int lwp_setprivate(klwp_t *, int, uintptr_t); 787 extern void lwp_stat_update(lwp_stat_id_t, long); 788 extern void lwp_attach_brand_hdlrs(klwp_t *); 789 extern void lwp_detach_brand_hdlrs(klwp_t *); 790 791 #if defined(__sparcv9) 792 extern void lwp_mmodel_newlwp(void); 793 extern void lwp_mmodel_shared_as(caddr_t, size_t); 794 #define LWP_MMODEL_NEWLWP() lwp_mmodel_newlwp() 795 #define LWP_MMODEL_SHARED_AS(addr, sz) lwp_mmodel_shared_as((addr), (sz)) 796 #else 797 #define LWP_MMODEL_NEWLWP() 798 #define LWP_MMODEL_SHARED_AS(addr, sz) 799 #endif 800 801 /* 802 * Signal queue function prototypes. Must be here due to header ordering 803 * dependencies. 804 */ 805 extern void sigqfree(proc_t *); 806 extern void siginfofree(sigqueue_t *); 807 extern void sigdeq(proc_t *, kthread_t *, int, sigqueue_t **); 808 extern void sigdelq(proc_t *, kthread_t *, int); 809 extern void sigaddq(proc_t *, kthread_t *, k_siginfo_t *, int); 810 extern void sigaddqa(proc_t *, kthread_t *, sigqueue_t *); 811 extern void sigqsend(int, proc_t *, kthread_t *, sigqueue_t *); 812 extern void sigdupq(proc_t *, proc_t *); 813 extern int sigwillqueue(int, int); 814 extern sigqhdr_t *sigqhdralloc(size_t, uint_t); 815 extern sigqueue_t *sigqalloc(sigqhdr_t *); 816 extern void sigqhdrfree(sigqhdr_t *); 817 extern sigqueue_t *sigappend(k_sigset_t *, sigqueue_t *, 818 k_sigset_t *, sigqueue_t *); 819 extern sigqueue_t *sigprepend(k_sigset_t *, sigqueue_t *, 820 k_sigset_t *, sigqueue_t *); 821 extern void winfo(proc_t *, k_siginfo_t *, int); 822 extern int wstat(int, int); 823 extern int sendsig(int, k_siginfo_t *, void (*)()); 824 #if defined(_SYSCALL32_IMPL) 825 extern int sendsig32(int, k_siginfo_t *, void (*)()); 826 #endif 827 828 #endif /* _KERNEL */ 829 830 #ifdef __cplusplus 831 } 832 #endif 833 834 #endif /* _SYS_PROC_H */ 835