proc.h revision 1.233
1/* $NetBSD: proc.h,v 1.233 2007/02/09 21:55:37 ad Exp $ */ 2 3/*- 4 * Copyright (c) 2006, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39/*- 40 * Copyright (c) 1986, 1989, 1991, 1993 41 * The Regents of the University of California. All rights reserved. 42 * (c) UNIX System Laboratories, Inc. 43 * All or some portions of this file are derived from material licensed 44 * to the University of California by American Telephone and Telegraph 45 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 46 * the permission of UNIX System Laboratories, Inc. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. Neither the name of the University nor the names of its contributors 57 * may be used to endorse or promote products derived from this software 58 * without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 70 * SUCH DAMAGE. 71 * 72 * @(#)proc.h 8.15 (Berkeley) 5/19/95 73 */ 74 75#ifndef _SYS_PROC_H_ 76#define _SYS_PROC_H_ 77 78#if defined(_KERNEL_OPT) 79#include "opt_multiprocessor.h" 80#include "opt_kstack.h" 81#include "opt_lockdebug.h" 82#endif 83 84#include <machine/proc.h> /* Machine-dependent proc substruct */ 85#include <sys/lock.h> 86#include <sys/rwlock.h> 87#include <sys/mutex.h> 88#include <sys/condvar.h> 89#include <sys/lwp.h> 90#include <sys/queue.h> 91#include <sys/callout.h> 92#include <sys/signalvar.h> 93#include <sys/siginfo.h> 94#include <sys/event.h> 95#include <sys/specificdata.h> 96 97#ifndef _KERNEL 98#include <sys/time.h> 99#include <sys/resource.h> 100#endif 101 102/* 103 * One structure allocated per session. 104 */ 105struct session { 106 int s_count; /* Ref cnt; pgrps in session */ 107 u_int s_flags; 108#define S_LOGIN_SET 1 /* s_login set in this session */ 109 struct proc *s_leader; /* Session leader */ 110 struct vnode *s_ttyvp; /* Vnode of controlling terminal */ 111 struct tty *s_ttyp; /* Controlling terminal */ 112 char s_login[MAXLOGNAME]; /* Setlogin() name */ 113 pid_t s_sid; /* Session ID (pid of leader) */ 114}; 115 116/* 117 * One structure allocated per process group. 118 */ 119struct pgrp { 120 LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members */ 121 struct session *pg_session; /* Pointer to session */ 122 pid_t pg_id; /* Pgrp id */ 123 int pg_jobc; /* 124 * Number of processes qualifying 125 * pgrp for job control 126 */ 127}; 128 129/* 130 * One structure allocated per emulation. 131 */ 132struct exec_package; 133struct ps_strings; 134struct ras; 135struct sa_emul; 136struct kauth_cred; 137 138struct emul { 139 const char *e_name; /* Symbolic name */ 140 const char *e_path; /* Extra emulation path (NULL if none)*/ 141#ifndef __HAVE_MINIMAL_EMUL 142 int e_flags; /* Miscellaneous flags, see above */ 143 /* Syscall handling function */ 144 const int *e_errno; /* Errno array */ 145 int e_nosys; /* Offset of the nosys() syscall */ 146 int e_nsysent; /* Number of system call entries */ 147#endif 148 const struct sysent *e_sysent; /* System call array */ 149 const char * const *e_syscallnames; /* System call name array */ 150 /* Signal sending function */ 151 void (*e_sendsig)(const struct ksiginfo *, 152 const sigset_t *); 153 void (*e_trapsignal)(struct lwp *, struct ksiginfo *); 154 int (*e_tracesig)(struct proc *, int); 155 char *e_sigcode; /* Start of sigcode */ 156 char *e_esigcode; /* End of sigcode */ 157 /* Set registers before execution */ 158 struct uvm_object **e_sigobject;/* shared sigcode object */ 159 void (*e_setregs)(struct lwp *, struct exec_package *, 160 u_long); 161 162 /* Per-process hooks */ 163 void (*e_proc_exec)(struct proc *, struct exec_package *); 164 void (*e_proc_fork)(struct proc *, struct proc *, int); 165 void (*e_proc_exit)(struct proc *); 166 void (*e_lwp_fork)(struct lwp *, struct lwp *); 167 void (*e_lwp_exit)(struct lwp *); 168 169#ifdef __HAVE_SYSCALL_INTERN 170 void (*e_syscall_intern)(struct proc *); 171#else 172 void (*e_syscall)(void); 173#endif 174 /* Emulation specific sysctl data */ 175 struct sysctlnode *e_sysctlovly; 176 int (*e_fault)(struct proc *, vaddr_t, int); 177 178 vaddr_t (*e_vm_default_addr)(struct proc *, vaddr_t, vsize_t); 179 180 /* Emulation-specific hook for userspace page faults */ 181 int (*e_usertrap)(struct lwp *, vaddr_t, void *); 182 183 size_t e_ucsize; /* size of ucontext_t */ 184}; 185 186/* 187 * Emulation miscelaneous flags 188 */ 189#define EMUL_HAS_SYS___syscall 0x001 /* Has SYS___syscall */ 190 191/* 192 * Description of a process. 193 * 194 * This structure contains the information needed to manage a thread of 195 * control, known in UN*X as a process; it has references to substructures 196 * containing descriptions of things that the process uses, but may share 197 * with related processes. The process structure and the substructures 198 * are always addressible except for those marked "(PROC ONLY)" below, 199 * which might be addressible only on a processor on which the process 200 * is running. 201 * 202 * Field markings and the corresponding locks (not yet fully implemented, 203 * more a statement of intent): 204 * 205 * k: ktrace_mutex 206 * m: proclist_mutex 207 * l: proclist_lock 208 * s: p_smutex 209 * t: p_stmutex 210 * p: p_mutex 211 * r: p_rasmutex 212 * (: unlocked, stable 213 */ 214struct proc { 215 LIST_ENTRY(proc) p_list; /* l, m: List of all processes */ 216 217 kmutex_t p_rasmutex; /* :: RAS mutex */ 218 kmutex_t p_mutex; /* :: general mutex */ 219 kmutex_t p_smutex; /* :: mutex on scheduling state */ 220 kmutex_t p_stmutex; /* :: mutex on profiling state */ 221 kcondvar_t p_refcv; /* p: reference count CV */ 222 kcondvar_t p_waitcv; /* s: wait, stop CV on children */ 223 kcondvar_t p_lwpcv; /* s: wait, stop CV on LWPs */ 224 int p_refcnt; /* p: ref count for procfs etc */ 225 226 /* Substructures: */ 227 struct kauth_cred *p_cred; /* p: Master copy of credentials */ 228 struct filedesc *p_fd; /* Ptr to open files structure */ 229 struct cwdinfo *p_cwdi; /* cdir/rdir/cmask info */ 230 struct pstats *p_stats; /* Accounting/stats (PROC ONLY) */ 231 struct plimit *p_limit; /* Process limits */ 232 struct vmspace *p_vmspace; /* Address space */ 233 struct sigacts *p_sigacts; /* Process sigactions */ 234 235 specificdata_reference 236 p_specdataref; /* subsystem proc-specific data */ 237 238 int p_exitsig; /* l: signal to send to parent on exit */ 239 int p_flag; /* p: P_* flags */ 240 int p_sflag; /* s: PS_* flags */ 241 int p_slflag; /* s, l: PSL_* flags */ 242 int p_lflag; /* l: PL_* flags */ 243 int p_stflag; /* t: PST_* flags */ 244 char p_stat; /* s: S* process status. */ 245 char p_pad1[3]; 246 247 pid_t p_pid; /* (: Process identifier. */ 248 LIST_ENTRY(proc) p_pglist; /* l: List of processes in pgrp. */ 249 struct proc *p_pptr; /* l: Pointer to parent process. */ 250 LIST_ENTRY(proc) p_sibling; /* l: List of sibling processes. */ 251 LIST_HEAD(, proc) p_children; /* l: List of children. */ 252 LIST_HEAD(, lwp) p_lwps; /* s: List of LWPs. */ 253 LIST_HEAD(, ras) p_raslist; /* r: List of RAS entries */ 254 255/* The following fields are all zeroed upon creation in fork. */ 256#define p_startzero p_nlwps 257 258 int p_nlwps; /* s: Number of LWPs */ 259 int p_nzlwps; /* s: Number of zombie LWPs */ 260 int p_nrlwps; /* s: Number running/sleeping LWPs */ 261 int p_nlwpwait; /* s: Number of LWPs in lwp_wait1() */ 262 int p_ndlwps; /* s: Number of detached LWPs */ 263 int p_nlwpid; /* s: Next LWP ID */ 264 u_int p_nstopchild; /* m: Count of stopped/dead children */ 265 u_int p_waited; /* m: parent has waited on child */ 266 struct lwp *p_zomblwp; /* s: detached LWP to be reaped */ 267 268 /* scheduling */ 269 fixpt_t p_estcpu; /* t: Time averaged value of p_cpticks XXX belongs in p_startcopy section */ 270 fixpt_t p_estcpu_inherited; 271 unsigned int p_forktime; 272 int p_cpticks; /* t: Ticks of CPU time */ 273 fixpt_t p_pctcpu; /* t: %cpu for this process during p_swtime */ 274 275 struct proc *p_opptr; /* l: save parent during ptrace. */ 276 struct ptimers *p_timers; /* Timers: real, virtual, profiling */ 277 struct timeval p_rtime; /* s: real time */ 278 u_quad_t p_uticks; /* t: Statclock hits in user mode */ 279 u_quad_t p_sticks; /* t: Statclock hits in system mode */ 280 u_quad_t p_iticks; /* t: Statclock hits processing intr */ 281 282 int p_traceflag; /* k: Kernel trace points */ 283 void *p_tracep; /* k: Trace private data */ 284 void *p_systrace; /* Back pointer to systrace */ 285 286 struct vnode *p_textvp; /* Vnode of executable */ 287 288 const struct emul *p_emul; /* Emulation information */ 289 void *p_emuldata; /* Per-process emulation data, or NULL. 290 * Malloc type M_EMULDATA */ 291 const struct execsw *p_execsw; /* Exec package information */ 292 struct klist p_klist; /* Knotes attached to this process */ 293 294 LIST_HEAD(, lwp) p_sigwaiters; /* s: LWPs waiting for signals */ 295 sigpend_t p_sigpend; /* s: pending signals */ 296 297/* 298 * End area that is zeroed on creation 299 */ 300#define p_endzero p_startcopy 301 302/* 303 * The following fields are all copied upon creation in fork. 304 */ 305#define p_startcopy p_sigctx 306 307 struct sigctx p_sigctx; /* s: Shared signal state */ 308 309 u_char p_nice; /* s: Process "nice" value */ 310 char p_comm[MAXCOMLEN+1]; 311 /* p: basename of last exec file */ 312 struct pgrp *p_pgrp; /* l: Pointer to process group */ 313 314 struct ps_strings *p_psstr; /* (: address of process's ps_strings */ 315 size_t p_psargv; /* (: offset of ps_argvstr in above */ 316 size_t p_psnargv; /* (: offset of ps_nargvstr in above */ 317 size_t p_psenv; /* (: offset of ps_envstr in above */ 318 size_t p_psnenv; /* (: offset of ps_nenvstr in above */ 319 320/* 321 * End area that is copied on creation 322 */ 323#define p_endcopy p_xstat 324 325 u_short p_xstat; /* s: Exit status for wait; also stop signal */ 326 u_short p_acflag; /* p: Acc. flags; see struct lwp also */ 327 struct rusage *p_ru; /* Exit information. XXX */ 328 329 struct mdproc p_md; /* Any machine-dependent fields */ 330}; 331 332#define p_rlimit p_limit->pl_rlimit 333#define p_session p_pgrp->pg_session 334#define p_pgid p_pgrp->pg_id 335 336/* 337 * Status values. 338 */ 339#define SIDL 1 /* Process being created by fork */ 340#define SACTIVE 2 /* Process is not stopped */ 341#define SDYING 3 /* About to die */ 342#define SSTOP 4 /* Process debugging or suspension */ 343#define SZOMB 5 /* Awaiting collection by parent */ 344#define SDEAD 6 /* Almost a zombie */ 345 346#define P_ZOMBIE(p) \ 347 ((p)->p_stat == SZOMB || (p)->p_stat == SDYING || (p)->p_stat == SDEAD) 348 349/* 350 * These flags are kept in p_flag and are protected by p_mutex. Access from 351 * process context only. 352 */ 353#define P_ADVLOCK 0x00000001 /* Process may hold a POSIX advisory lock */ 354#define P_SYSTEM 0x00000002 /* System process (kthread) */ 355#define P_SUGID 0x00000100 /* Had set id privileges since last exec */ 356#define P_EXEC 0x00004000 /* Process called exec */ 357#define P_NOCLDWAIT 0x00020000 /* No zombies if child dies */ 358#define P_32 0x00040000 /* 32-bit process (used on 64-bit kernels) */ 359#define P_CLDSIGIGN 0x00080000 /* Process is ignoring SIGCHLD */ 360#define P_SYSTRACE 0x00200000 /* Process system call tracing active */ 361#define P_PAXMPROTECT 0x08000000 /* Explicitly enable PaX MPROTECT */ 362#define P_PAXMPROTECT 0x08000000 /* Explicitly enable PaX MPROTECT */ 363#define P_PAXNOMPROTECT 0x10000000 /* Explicitly disable PaX MPROTECT */ 364#define P_MARKER 0x80000000 /* Is a dummy marker process */ 365 366/* 367 * These flags are kept in p_sflag and are protected by p_smutex. Access from 368 * process context or interrupt context. 369 */ 370#define PS_NOCLDSTOP 0x00000008 /* No SIGCHLD when children stop */ 371#define PS_PPWAIT 0x00000010 /* Parent is waiting for child exec/exit */ 372#define PS_WCORE 0x00001000 /* Process needs to dump core */ 373#define PS_WEXIT 0x00002000 /* Working on exiting */ 374#define PS_STOPFORK 0x00800000 /* Child will be stopped on fork(2) */ 375#define PS_STOPEXEC 0x01000000 /* Will be stopped on exec(2) */ 376#define PS_STOPEXIT 0x02000000 /* Will be stopped at process exit */ 377#define PS_NOTIFYSTOP 0x10000000 /* Notify parent of successful STOP */ 378#define PS_ORPHANPG 0x20000000 /* Member of an orphaned pgrp */ 379#define PS_STOPPING 0x80000000 /* Transitioning SACTIVE -> SSTOP */ 380 381/* 382 * These flags are kept in p_sflag and are protected by the proclist_lock 383 * and p_smutex. Access from process context or interrupt context. 384 */ 385#define PSL_TRACED 0x00000800 /* Debugged process being traced */ 386#define PSL_FSTRACE 0x00010000 /* Debugger process being traced by procfs */ 387#define PSL_CHTRACED 0x00400000 /* Child has been traced & reparented */ 388#define PSL_SYSCALL 0x04000000 /* process has PT_SYSCALL enabled */ 389 390/* 391 * Kept in p_stflag and protected by p_stmutex. 392 */ 393#define PST_PROFIL 0x00000020 /* Has started profiling */ 394 395/* 396 * The final set are protected by the proclist_lock. Access 397 * from process context only. 398 */ 399#define PL_CONTROLT 0x00000002 /* Has a controlling terminal */ 400 401/* 402 * Macro to compute the exit signal to be delivered. 403 */ 404#define P_EXITSIG(p) \ 405 (((p)->p_slflag & (PSL_TRACED|PSL_FSTRACE)) ? SIGCHLD : p->p_exitsig) 406 407/* 408 * MOVE TO ucred.h? 409 * 410 * Shareable process credentials (always resident). This includes a reference 411 * to the current user credentials as well as real and saved ids that may be 412 * used to change ids. 413 */ 414struct pcred { 415 struct ucred *pc_ucred; /* Current credentials */ 416 uid_t p_ruid; /* Real user id */ 417 uid_t p_svuid; /* Saved effective user id */ 418 gid_t p_rgid; /* Real group id */ 419 gid_t p_svgid; /* Saved effective group id */ 420 int p_refcnt; /* Number of references */ 421}; 422 423LIST_HEAD(proclist, proc); /* A list of processes */ 424 425/* 426 * This structure associates a proclist with its lock. 427 */ 428struct proclist_desc { 429 struct proclist *pd_list; /* The list */ 430 /* 431 * XXX Add a pointer to the proclist's lock eventually. 432 */ 433}; 434 435#ifdef _KERNEL 436#include <sys/mallocvar.h> 437MALLOC_DECLARE(M_EMULDATA); 438MALLOC_DECLARE(M_PROC); 439MALLOC_DECLARE(M_SESSION); 440MALLOC_DECLARE(M_SUBPROC); /* XXX - only used by sparc/sparc64 */ 441 442/* 443 * We use process IDs <= PID_MAX until there are > 16k processes. 444 * NO_PGID is used to represent "no process group" for a tty. 445 */ 446#define PID_MAX 30000 447#define NO_PGID ((pid_t)-1) 448 449#define SESS_LEADER(p) ((p)->p_session->s_leader == (p)) 450#define SESSHOLD(s) ((s)->s_count++) 451#define SESSRELE(s) \ 452do { \ 453 if (--(s)->s_count == 0) \ 454 sessdelete(s); \ 455} while (/* CONSTCOND */ 0) 456 457 458/* 459 * Flags passed to fork1(). 460 */ 461#define FORK_PPWAIT 0x01 /* Block parent until child exit */ 462#define FORK_SHAREVM 0x02 /* Share vmspace with parent */ 463#define FORK_SHARECWD 0x04 /* Share cdir/rdir/cmask */ 464#define FORK_SHAREFILES 0x08 /* Share file descriptors */ 465#define FORK_SHARESIGS 0x10 /* Share signal actions */ 466#define FORK_NOWAIT 0x20 /* Make init the parent of the child */ 467#define FORK_CLEANFILES 0x40 /* Start with a clean descriptor set */ 468#define FORK_SYSTEM 0x80 /* Fork a kernel thread */ 469 470/* 471 * Allow machine-dependent code to override curproc in <machine/cpu.h> for 472 * its own convenience. Otherwise, we declare it as appropriate. 473 */ 474#if !defined(curlwp) 475#if defined(MULTIPROCESSOR) 476#define curlwp curcpu()->ci_curlwp /* Current running LWP */ 477#else 478extern struct lwp *curlwp; /* Current running LWP */ 479#endif /* MULTIPROCESSOR */ 480#endif /* ! curproc */ 481 482static struct proc *__curproc(void); 483 484static __inline struct proc * 485__curproc() 486{ 487 struct lwp *l = curlwp; 488 489 if (l == NULL) 490 return NULL; 491 return l->l_proc; 492} 493#define curproc __curproc() 494 495extern struct proc proc0; /* Process slot for swapper */ 496extern int nprocs, maxproc; /* Current and max number of procs */ 497#define vmspace_kernel() (proc0.p_vmspace) 498 499/* Process list locks; see kern_proc.c for locking protocol details */ 500extern krwlock_t proclist_lock; 501extern kmutex_t proclist_mutex; 502 503extern struct proclist allproc; /* List of all processes */ 504extern struct proclist zombproc; /* List of zombie processes */ 505 506extern SLIST_HEAD(deadprocs, proc) deadprocs; /* List of dead processes */ 507extern struct simplelock deadproc_slock; 508 509extern struct proc *initproc; /* Process slots for init, pager */ 510 511extern const struct proclist_desc proclists[]; 512 513extern struct pool pcred_pool; /* Memory pool for pcreds */ 514extern struct pool plimit_pool; /* Memory pool for plimits */ 515extern struct pool pstats_pool; /* memory pool for pstats */ 516extern struct pool rusage_pool; /* Memory pool for rusages */ 517extern struct pool ptimer_pool; /* Memory pool for ptimers */ 518 519struct proc *p_find(pid_t, uint); /* Find process by id */ 520struct pgrp *pg_find(pid_t, uint); /* Find process group by id */ 521/* Flags values for p_find() and pg_find(). */ 522#define PFIND_ZOMBIE 1 /* look for zombies as well */ 523#define PFIND_LOCKED 2 /* proclist locked on entry */ 524#define PFIND_UNLOCK_FAIL 4 /* unlock proclist on failure */ 525#define PFIND_UNLOCK_OK 8 /* unlock proclist on success */ 526#define PFIND_UNLOCK (PFIND_UNLOCK_OK | PFIND_UNLOCK_FAIL) 527/* For source compatibility. but UNLOCK_OK gives a stale answer... */ 528#define pfind(pid) p_find((pid), PFIND_UNLOCK) 529#define pgfind(pgid) pg_find((pgid), PFIND_UNLOCK) 530 531struct simplelock; 532int enterpgrp(struct proc *, pid_t, pid_t, int); 533void leavepgrp(struct proc *); 534void fixjobc(struct proc *, struct pgrp *, int); 535int inferior(struct proc *, struct proc *); 536void sessdelete(struct session *); 537void yield(void); 538void pgdelete(struct pgrp *); 539void procinit(void); 540void resetprocpriority(struct proc *); 541void suspendsched(void); 542int ltsleep(wchan_t, int, const char *, int, 543 volatile struct simplelock *); 544void wakeup(wchan_t); 545void wakeup_one(wchan_t); 546int kpause(const char *, boolean_t, int, kmutex_t *); 547void exit1(struct lwp *, int); 548int find_stopped_child(struct proc *, pid_t, int, struct proc **, int *); 549struct proc *proc_alloc(void); 550void proc0_init(void); 551void proc_free(struct proc *, struct rusage **); 552void proc_free_mem(struct proc *); 553void exit_lwps(struct lwp *l); 554int fork1(struct lwp *, int, int, void *, size_t, 555 void (*)(void *), void *, register_t *, struct proc **); 556void rqinit(void); 557int pgid_in_session(struct proc *, pid_t); 558#ifndef cpu_idle 559void cpu_idle(void); 560#endif 561void cpu_exit(struct lwp *); 562void cpu_lwp_fork(struct lwp *, struct lwp *, void *, size_t, 563 void (*)(void *), void *); 564#ifndef cpu_lwp_free 565void cpu_lwp_free(struct lwp *, int); 566void cpu_lwp_free2(struct lwp *); 567#endif 568 569#ifdef __HAVE_SYSCALL_INTERN 570void syscall_intern(struct proc *); 571#endif 572 573void child_return(void *); 574 575int proc_isunder(struct proc *, struct lwp *); 576void proc_stop(struct proc *, int, int); 577 578void p_sugid(struct proc *); 579 580int proc_vmspace_getref(struct proc *, struct vmspace **); 581void proc_crmod_leave(kauth_cred_t, kauth_cred_t, boolean_t); 582void proc_crmod_enter(void); 583int proc_addref(struct proc *); 584void proc_delref(struct proc *); 585void proc_drainrefs(struct proc *); 586 587int proc_specific_key_create(specificdata_key_t *, specificdata_dtor_t); 588void proc_specific_key_delete(specificdata_key_t); 589void proc_initspecific(struct proc *); 590void proc_finispecific(struct proc *); 591void * proc_getspecific(struct proc *, specificdata_key_t); 592void proc_setspecific(struct proc *, specificdata_key_t, void *); 593 594int proclist_foreach_call(struct proclist *, 595 int (*)(struct proc *, void *arg), void *); 596static __inline struct proc *_proclist_skipmarker(struct proc *); 597 598static __inline struct proc * 599_proclist_skipmarker(struct proc *p0) 600{ 601 struct proc *p = p0; 602 603 while (p != NULL && p->p_flag & P_MARKER) 604 p = LIST_NEXT(p, p_list); 605 606 return p; 607} 608#define PROCLIST_FOREACH(var, head) \ 609 for ((var) = LIST_FIRST(head); \ 610 ((var) = _proclist_skipmarker(var)) != NULL; \ 611 (var) = LIST_NEXT(var, p_list)) 612 613#if defined(LOCKDEBUG) 614void assert_sleepable(struct simplelock *, const char *); 615#define ASSERT_SLEEPABLE(lk, msg) assert_sleepable((lk), (msg)) 616#else /* defined(LOCKDEBUG) */ 617#define ASSERT_SLEEPABLE(lk, msg) /* nothing */ 618#endif /* defined(LOCKDEBUG) */ 619 620/* Compatibility with old, non-interlocked tsleep call */ 621#define tsleep(chan, pri, wmesg, timo) \ 622 ltsleep(chan, pri, wmesg, timo, NULL) 623 624#if defined(MULTIPROCESSOR) 625void proc_trampoline_mp(void); /* XXX */ 626#endif 627 628#ifdef KSTACK_CHECK_MAGIC 629void kstack_setup_magic(const struct lwp *); 630void kstack_check_magic(const struct lwp *); 631#endif 632 633/* 634 * kernel stack paramaters 635 * XXX require sizeof(struct user) 636 */ 637/* the lowest address of kernel stack */ 638#ifndef KSTACK_LOWEST_ADDR 639#define KSTACK_LOWEST_ADDR(l) ((caddr_t)ALIGN((l)->l_addr + 1)) 640#endif 641/* size of kernel stack */ 642#ifndef KSTACK_SIZE 643#define KSTACK_SIZE (USPACE - ALIGN(sizeof(struct user))) 644#endif 645 646#endif /* _KERNEL */ 647#endif /* !_SYS_PROC_H_ */ 648