Annotation of src/sys/sys/proc.h, Revision 1.175
1.175 ! dsl 1: /* $NetBSD: proc.h,v 1.174 2003/10/09 14:00:34 yamt Exp $ */
1.29 cgd 2:
3: /*-
4: * Copyright (c) 1986, 1989, 1991, 1993
5: * The Regents of the University of California. All rights reserved.
6: * (c) UNIX System Laboratories, Inc.
7: * All or some portions of this file are derived from material licensed
8: * to the University of California by American Telephone and Telegraph
9: * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10: * the permission of UNIX System Laboratories, Inc.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
1.168 agc 20: * 3. Neither the name of the University nor the names of its contributors
1.29 cgd 21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
1.59 fvdl 36: * @(#)proc.h 8.15 (Berkeley) 5/19/95
1.29 cgd 37: */
38:
39: #ifndef _SYS_PROC_H_
40: #define _SYS_PROC_H_
1.57 mrg 41:
1.131 mrg 42: #if defined(_KERNEL_OPT)
1.83 thorpej 43: #include "opt_multiprocessor.h"
1.139 yamt 44: #include "opt_kstack.h"
1.83 thorpej 45: #endif
46:
1.122 lukem 47: #include <machine/proc.h> /* Machine-dependent proc substruct */
1.79 thorpej 48: #include <sys/lock.h>
1.153 thorpej 49: #include <sys/lwp.h>
1.32 mycroft 50: #include <sys/queue.h>
1.87 thorpej 51: #include <sys/callout.h>
1.118 jdolecek 52: #include <sys/signalvar.h>
1.170 christos 53: #include <sys/siginfo.h>
1.147 jdolecek 54: #include <sys/event.h>
1.29 cgd 55:
56: /*
57: * One structure allocated per session.
58: */
1.122 lukem 59: struct session {
60: int s_count; /* Ref cnt; pgrps in session */
1.159 dsl 61: u_int s_flags;
62: #define S_LOGIN_SET 1 /* s_login set in this session */
1.122 lukem 63: struct proc *s_leader; /* Session leader */
64: struct vnode *s_ttyvp; /* Vnode of controlling terminal */
65: struct tty *s_ttyp; /* Controlling terminal */
66: char s_login[MAXLOGNAME]; /* Setlogin() name */
67: pid_t s_sid; /* Session ID (pid of leader) */
1.29 cgd 68: };
69:
70: /*
71: * One structure allocated per process group.
72: */
1.122 lukem 73: struct pgrp {
74: LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members */
75: struct session *pg_session; /* Pointer to session */
76: pid_t pg_id; /* Pgrp id */
77: int pg_jobc; /*
78: * Number of processes qualifying
79: * pgrp for job control
80: */
1.29 cgd 81: };
82:
83: /*
1.40 christos 84: * One structure allocated per emulation.
85: */
86: struct exec_package;
87: struct ps_strings;
1.144 gmcgarry 88: struct ras;
1.40 christos 89:
1.122 lukem 90: struct emul {
91: const char *e_name; /* Symbolic name */
92: const char *e_path; /* Extra emulation path (NULL if none)*/
1.130 manu 93: #ifndef __HAVE_MINIMAL_EMUL
1.129 manu 94: int e_flags; /* Miscellaneous flags, see above */
1.116 mycroft 95: /* Syscall handling function */
1.122 lukem 96: const int *e_errno; /* Errno array */
97: int e_nosys; /* Offset of the nosys() syscall */
98: int e_nsysent; /* Number of system call entries */
1.116 mycroft 99: #endif
1.111 jdolecek 100: const struct sysent *e_sysent; /* System call array */
1.122 lukem 101: const char * const *e_syscallnames; /* System call name array */
1.120 jdolecek 102: /* Signal sending function */
1.170 christos 103: #ifdef __HAVE_SIGINFO
1.172 christos 104: void (*e_sendsig) __P((const struct ksiginfo *,
105: const sigset_t *));
106: void (*e_trapsignal) __P((struct lwp *,
107: const struct ksiginfo *));
1.170 christos 108: #else
1.173 simonb 109: void (*e_sendsig) __P((int, const sigset_t *, u_long));
1.153 thorpej 110: void (*e_trapsignal) __P((struct lwp *, int, u_long));
1.170 christos 111: #endif
1.122 lukem 112: char *e_sigcode; /* Start of sigcode */
113: char *e_esigcode; /* End of sigcode */
1.134 jdolecek 114: /* Set registers before execution */
1.169 chs 115: struct uvm_object **e_sigobject;/* shared sigcode object */
1.153 thorpej 116: void (*e_setregs) __P((struct lwp *, struct exec_package *,
1.172 christos 117: u_long));
1.106 jdolecek 118:
1.112 jdolecek 119: /* Per-process hooks */
1.122 lukem 120: void (*e_proc_exec) __P((struct proc *,
121: struct exec_package *));
1.167 itojun 122: void (*e_proc_fork) __P((struct proc *, struct proc *));
1.122 lukem 123: void (*e_proc_exit) __P((struct proc *));
1.112 jdolecek 124:
1.116 mycroft 125: #ifdef __HAVE_SYSCALL_INTERN
1.122 lukem 126: void (*e_syscall_intern) __P((struct proc *));
1.116 mycroft 127: #else
1.122 lukem 128: void (*e_syscall) __P((void));
1.116 mycroft 129: #endif
1.137 jdolecek 130: /* Emulation specific sysctl */
131: int (*e_sysctl) __P((int *, u_int , void *, size_t *,
1.172 christos 132: void *, size_t, struct proc *));
1.151 manu 133: /* Specific VM fault handling */
1.145 manu 134: int (*e_fault) __P((struct proc *, vaddr_t, int, int));
1.40 christos 135: };
136:
1.127 manu 137: /*
138: * Emulation miscelaneous flags
139: */
1.122 lukem 140: #define EMUL_HAS_SYS___syscall 0x001 /* Has SYS___syscall */
1.114 mycroft 141:
1.40 christos 142: /*
1.29 cgd 143: * Description of a process.
144: *
145: * This structure contains the information needed to manage a thread of
146: * control, known in UN*X as a process; it has references to substructures
147: * containing descriptions of things that the process uses, but may share
148: * with related processes. The process structure and the substructures
149: * are always addressible except for those marked "(PROC ONLY)" below,
150: * which might be addressible only on a processor on which the process
151: * is running.
1.175 ! dsl 152: *
! 153: * Fields marked 'p:' are protected by the process's own p_lock.
1.29 cgd 154: */
1.122 lukem 155: struct proc {
156: LIST_ENTRY(proc) p_list; /* List of all processes */
157:
158: /* Substructures: */
159: struct pcred *p_cred; /* Process owner's identity */
160: struct filedesc *p_fd; /* Ptr to open files structure */
161: struct cwdinfo *p_cwdi; /* cdir/rdir/cmask info */
162: struct pstats *p_stats; /* Accounting/statistics (PROC ONLY) */
163: struct plimit *p_limit; /* Process limits */
164: struct vmspace *p_vmspace; /* Address space */
165: struct sigacts *p_sigacts; /* Process sigactions (state is below)*/
1.155 thorpej 166:
167: void *p_ksems; /* p1003.1b semaphores */
1.29 cgd 168:
169: #define p_ucred p_cred->pc_ucred
170: #define p_rlimit p_limit->pl_rlimit
171:
1.153 thorpej 172: int p_exitsig; /* signal to sent to parent on exit */
173: int p_flag; /* P_* flags. */
174: char p_stat; /* S* process status. */
1.122 lukem 175: char p_pad1[3];
176:
1.153 thorpej 177: pid_t p_pid; /* Process identifier. */
1.162 dsl 178: SLIST_ENTRY(proc) p_dead; /* Processes waiting for reaper */
1.153 thorpej 179: LIST_ENTRY(proc) p_pglist; /* List of processes in pgrp. */
180: struct proc *p_pptr; /* Pointer to parent process. */
181: LIST_ENTRY(proc) p_sibling; /* List of sibling processes. */
182: LIST_HEAD(, proc) p_children; /* Pointer to list of children. */
183:
1.175 ! dsl 184: struct simplelock p_lock; /* Lock on proc state (p:) */
1.153 thorpej 185:
1.175 ! dsl 186: LIST_HEAD(, lwp) p_lwps; /* p: Pointer to list of LWPs. */
1.144 gmcgarry 187:
1.175 ! dsl 188: LIST_HEAD(, ras) p_raslist; /* p: Pointer to RAS queue */
! 189: u_int p_nu; /* unused: was number of RASs */
! 190: struct simplelock p_nu2; /* unused: was Lock for RAS queue */
1.29 cgd 191:
1.153 thorpej 192: /* The following fields are all zeroed upon creation in fork. */
193: #define p_startzero p_nlwps
194:
1.175 ! dsl 195: int p_nlwps; /* p: Number of LWPs */
! 196: int p_nrlwps; /* p: Number of running LWPs */
! 197: int p_nzlwps; /* p: Number of zombie LWPs */
! 198: int p_nlwpid; /* p: Next LWP ID */
1.29 cgd 199:
1.153 thorpej 200: struct sadata *p_sa; /* Scheduler activation information */
1.29 cgd 201:
1.153 thorpej 202: /* scheduling */
203: u_int p_estcpu; /* Time averaged value of p_cpticks XXX belongs in p_startcopy section */
1.122 lukem 204: int p_cpticks; /* Ticks of cpu time */
1.153 thorpej 205: fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */
206:
207: struct proc *p_opptr; /* Save parent during ptrace. */
208: struct ptimers *p_timers; /* Timers: real, virtual, profiling */
209: struct timeval p_rtime; /* Real time */
210: u_quad_t p_uticks; /* Statclock hits in user mode */
211: u_quad_t p_sticks; /* Statclock hits in system mode */
212: u_quad_t p_iticks; /* Statclock hits processing intr */
1.29 cgd 213:
1.122 lukem 214: int p_traceflag; /* Kernel trace points */
215: struct file *p_tracep; /* Trace to file */
1.138 christos 216: void *p_systrace; /* Back pointer to systrace */
1.29 cgd 217:
1.153 thorpej 218: struct vnode *p_textvp; /* Vnode of executable */
1.50 fvdl 219:
1.111 jdolecek 220: const struct emul *p_emul; /* Emulation information */
1.153 thorpej 221: void *p_emuldata; /* Per-process emulation data, or NULL.
222: * Malloc type M_EMULDATA
1.122 lukem 223: */
1.153 thorpej 224:
1.167 itojun 225: void (*p_userret)(struct lwp *, void *);
1.153 thorpej 226: /* Function to call at userret(). */
227: void *p_userret_arg;
228:
1.135 thorpej 229: const struct execsw *p_execsw; /* Exec package information */
1.147 jdolecek 230: struct klist p_klist; /* Knotes attached to this process */
1.29 cgd 231:
1.122 lukem 232: /*
233: * End area that is zeroed on creation
234: */
1.29 cgd 235: #define p_endzero p_startcopy
236:
1.122 lukem 237: /*
238: * The following fields are all copied upon creation in fork.
239: */
1.118 jdolecek 240: #define p_startcopy p_sigctx.ps_startcopy
1.29 cgd 241:
1.153 thorpej 242: struct sigctx p_sigctx; /* Signal state */
1.122 lukem 243:
244: u_char p_nice; /* Process "nice" value */
1.125 simonb 245: char p_comm[MAXCOMLEN+1]; /* basename of last exec file */
1.122 lukem 246:
1.153 thorpej 247: struct pgrp *p_pgrp; /* Pointer to process group */
1.29 cgd 248:
1.153 thorpej 249: struct ps_strings *p_psstr; /* address of process's ps_strings */
250: size_t p_psargv; /* offset of ps_argvstr in above */
251: size_t p_psnargv; /* offset of ps_nargvstr in above */
252: size_t p_psenv; /* offset of ps_envstr in above */
253: size_t p_psnenv; /* offset of ps_nenvstr in above */
1.29 cgd 254:
1.153 thorpej 255: /*
1.122 lukem 256: * End area that is copied on creation
257: */
1.153 thorpej 258: #define p_endcopy p_xstat
1.122 lukem 259:
260: u_short p_xstat; /* Exit status for wait; also stop signal */
261: u_short p_acflag; /* Accounting flags */
1.153 thorpej 262: struct rusage *p_ru; /* Exit information. XXX */
263:
264: struct mdproc p_md; /* Any machine-dependent fields */
1.29 cgd 265: };
266:
267: #define p_session p_pgrp->pg_session
268: #define p_pgid p_pgrp->pg_id
269:
1.91 thorpej 270: /*
271: * Status values.
272: *
273: */
1.122 lukem 274: #define SIDL 1 /* Process being created by fork */
1.153 thorpej 275: #define SACTIVE 2 /* Process is not stopped */
1.122 lukem 276: #define SSTOP 4 /* Process debugging or suspension */
277: #define SZOMB 5 /* Awaiting collection by parent */
278: #define SDEAD 6 /* Process is almost a zombie */
1.79 thorpej 279:
280: #define P_ZOMBIE(p) ((p)->p_stat == SZOMB || (p)->p_stat == SDEAD)
1.29 cgd 281:
1.41 mycroft 282: /* These flags are kept in p_flag. */
1.164 christos 283: #define P_ADVLOCK 0x00000001 /* Process may hold a POSIX advisory lock */
284: #define P_CONTROLT 0x00000002 /* Has a controlling terminal */
285: #define P_NOCLDSTOP 0x00000008 /* No SIGCHLD when children stop */
286: #define P_PPWAIT 0x00000010 /* Parent is waiting for child exec/exit */
287: #define P_PROFIL 0x00000020 /* Has started profiling */
288: #define P_SUGID 0x00000100 /* Had set id privileges since last exec */
289: #define P_SYSTEM 0x00000200 /* System proc: no sigs, stats or swapping */
290: #define P_SA 0x00000400 /* Using scheduler activations */
291: #define P_TRACED 0x00000800 /* Debugged process being traced */
292: #define P_WAITED 0x00001000 /* Debugging process has waited for child */
293: #define P_WEXIT 0x00002000 /* Working on exiting */
294: #define P_EXEC 0x00004000 /* Process called exec */
295: #define P_OWEUPC 0x00008000 /* Owe process an addupc() at next ast */
296: #define P_FSTRACE 0x00010000 /* Debugger process being traced by procfs */
297: #define P_NOCLDWAIT 0x00020000 /* No zombies if child dies */
298: #define P_32 0x00040000 /* 32-bit process (used on 64-bit kernels) */
299: #define P_INEXEC 0x00100000 /* Process is exec'ing and can't be traced */
300: #define P_SYSTRACE 0x00200000 /* Process system call tracing active */
301: #define P_CHTRACED 0x00400000 /* Child has been traced & reparented */
302: #define P_STOPFORK 0x00800000 /* Child will be stopped on fork(2) */
303: #define P_STOPEXEC 0x01000000 /* Will be stopped on exec(2) */
1.29 cgd 304:
305: /*
1.78 thorpej 306: * Macro to compute the exit signal to be delivered.
1.76 thorpej 307: */
1.78 thorpej 308: #define P_EXITSIG(p) (((p)->p_flag & (P_TRACED|P_FSTRACE)) ? SIGCHLD : \
309: p->p_exitsig)
1.76 thorpej 310:
311: /*
1.29 cgd 312: * MOVE TO ucred.h?
313: *
314: * Shareable process credentials (always resident). This includes a reference
315: * to the current user credentials as well as real and saved ids that may be
316: * used to change ids.
317: */
1.122 lukem 318: struct pcred {
319: struct ucred *pc_ucred; /* Current credentials */
320: uid_t p_ruid; /* Real user id */
321: uid_t p_svuid; /* Saved effective user id */
322: gid_t p_rgid; /* Real group id */
323: gid_t p_svgid; /* Saved effective group id */
324: int p_refcnt; /* Number of references */
1.29 cgd 325: };
326:
1.122 lukem 327: LIST_HEAD(proclist, proc); /* A list of processes */
1.64 thorpej 328:
329: /*
330: * This structure associates a proclist with its lock.
331: */
332: struct proclist_desc {
1.122 lukem 333: struct proclist *pd_list; /* The list */
1.64 thorpej 334: /*
335: * XXX Add a pointer to the proclist's lock eventually.
336: */
337: };
338:
1.38 jtc 339: #ifdef _KERNEL
1.156 thorpej 340: #include <sys/mallocvar.h>
341: MALLOC_DECLARE(M_EMULDATA);
342: MALLOC_DECLARE(M_PROC);
343: MALLOC_DECLARE(M_SESSION);
344: MALLOC_DECLARE(M_SUBPROC);
345:
1.29 cgd 346: /*
1.162 dsl 347: * We use process IDs <= PID_MAX until there are > 16k processes.
348: * NO_PGID is used to represent "no process group" for a tty.
1.29 cgd 349: */
350: #define PID_MAX 30000
1.163 jdolecek 351: #define NO_PGID ((pid_t)-1)
1.29 cgd 352:
1.122 lukem 353: #define SESS_LEADER(p) ((p)->p_session->s_leader == (p))
1.29 cgd 354: #define SESSHOLD(s) ((s)->s_count++)
1.122 lukem 355: #define SESSRELE(s) \
356: do { \
1.29 cgd 357: if (--(s)->s_count == 0) \
1.162 dsl 358: sessdelete(s); \
1.126 lukem 359: } while (/* CONSTCOND */ 0)
1.29 cgd 360:
1.54 thorpej 361:
362: /*
363: * Flags passed to fork1().
364: */
1.122 lukem 365: #define FORK_PPWAIT 0x01 /* Block parent until child exit */
366: #define FORK_SHAREVM 0x02 /* Share vmspace with parent */
367: #define FORK_SHARECWD 0x04 /* Share cdir/rdir/cmask */
368: #define FORK_SHAREFILES 0x08 /* Share file descriptors */
369: #define FORK_SHARESIGS 0x10 /* Share signal actions */
1.141 pooka 370: #define FORK_NOWAIT 0x20 /* Make init the parent of the child */
1.143 pooka 371: #define FORK_CLEANFILES 0x40 /* Start with a clean descriptor set */
1.41 mycroft 372:
1.67 pk 373: /*
1.93 thorpej 374: * Allow machine-dependent code to override curproc in <machine/cpu.h> for
1.83 thorpej 375: * its own convenience. Otherwise, we declare it as appropriate.
1.67 pk 376: */
1.153 thorpej 377: #if !defined(curlwp)
1.83 thorpej 378: #if defined(MULTIPROCESSOR)
1.153 thorpej 379: #define curlwp curcpu()->ci_curlwp /* Current running LWP */
1.83 thorpej 380: #else
1.153 thorpej 381: extern struct lwp *curlwp; /* Current running LWP */
1.83 thorpej 382: #endif /* MULTIPROCESSOR */
383: #endif /* ! curproc */
384:
1.174 yamt 385: static struct proc *__curproc(void);
386:
387: static __inline struct proc *
388: __curproc()
389: {
390: struct lwp *l = curlwp;
391:
392: if (l == NULL)
393: return NULL;
394: return l->l_proc;
395: }
396: #define curproc __curproc()
1.153 thorpej 397:
1.122 lukem 398: extern struct proc proc0; /* Process slot for swapper */
399: extern int nprocs, maxproc; /* Current and max number of procs */
1.29 cgd 400:
1.122 lukem 401: /* Process list lock; see kern_proc.c for locking protocol details */
402: extern struct lock proclist_lock;
1.110 sommerfe 403:
1.122 lukem 404: extern struct proclist allproc; /* List of all processes */
405: extern struct proclist zombproc; /* List of zombie processes */
1.79 thorpej 406:
1.162 dsl 407: extern SLIST_HEAD(deadprocs, proc) deadprocs; /* List of dead processes */
1.79 thorpej 408: extern struct simplelock deadproc_slock;
1.64 thorpej 409:
1.122 lukem 410: extern struct proc *initproc; /* Process slots for init, pager */
1.61 thorpej 411:
1.64 thorpej 412: extern const struct proclist_desc proclists[];
413:
1.122 lukem 414: extern struct pool pcred_pool; /* Memory pool for pcreds */
415: extern struct pool plimit_pool; /* Memory pool for plimits */
1.153 thorpej 416: extern struct pool pstats_pool; /* memory pool for pstats */
1.122 lukem 417: extern struct pool rusage_pool; /* Memory pool for rusages */
1.153 thorpej 418: extern struct pool ptimer_pool; /* Memory pool for ptimers */
1.29 cgd 419:
1.122 lukem 420: struct proc *pfind(pid_t); /* Find process by id */
421: struct pgrp *pgfind(pid_t); /* Find process group by id */
1.29 cgd 422:
1.98 thorpej 423: struct simplelock;
1.167 itojun 424: int chgproccnt(uid_t, int);
425: int enterpgrp(struct proc *, pid_t, int);
426: void fixjobc(struct proc *, struct pgrp *, int);
427: int inferior(struct proc *, struct proc *);
428: int leavepgrp(struct proc *);
1.162 dsl 429: void sessdelete(struct session *);
1.152 gmcgarry 430: void yield(void);
1.153 thorpej 431: struct lwp *chooselwp(void);
1.167 itojun 432: void pgdelete(struct pgrp *);
1.122 lukem 433: void procinit(void);
1.153 thorpej 434: void resetprocpriority(struct proc *);
1.122 lukem 435: void suspendsched(void);
1.167 itojun 436: int ltsleep(const void *, int, const char *, int,
1.122 lukem 437: __volatile struct simplelock *);
1.167 itojun 438: void wakeup(const void *);
439: void wakeup_one(const void *);
1.122 lukem 440: void reaper(void *);
1.153 thorpej 441: void exit1(struct lwp *, int);
442: void exit2(struct lwp *);
1.158 dsl 443: int find_stopped_child(struct proc *, pid_t, int, struct proc **);
1.162 dsl 444: struct proc *proc_alloc(void);
445: void proc0_insert(struct proc *, struct lwp *, struct pgrp *, struct session *);
1.158 dsl 446: void proc_free(struct proc *);
1.162 dsl 447: void proc_free_mem(struct proc *);
1.153 thorpej 448: void exit_lwps(struct lwp *l);
449: int fork1(struct lwp *, int, int, void *, size_t,
1.122 lukem 450: void (*)(void *), void *, register_t *, struct proc **);
451: void rqinit(void);
1.160 dsl 452: int groupmember(gid_t, const struct ucred *);
1.161 dsl 453: int pgid_in_session(struct proc *, pid_t);
1.146 gmcgarry 454: #ifndef cpu_idle
455: void cpu_idle(void);
1.124 matt 456: #endif
1.153 thorpej 457: void cpu_exit(struct lwp *, int);
458: void cpu_lwp_fork(struct lwp *, struct lwp *, void *, size_t,
1.122 lukem 459: void (*)(void *), void *);
1.123 lukem 460:
461: /*
462: * XXX: use __P() to allow ports to have as a #define.
463: * XXX: we need a better way to solve this.
464: */
1.153 thorpej 465: void cpu_wait __P((struct lwp *));
1.122 lukem 466:
467: void child_return(void *);
468:
1.166 fvdl 469: int proc_isunder(struct proc *, struct proc *);
1.122 lukem 470:
471: void proclist_lock_read(void);
472: void proclist_unlock_read(void);
473: int proclist_lock_write(void);
474: void proclist_unlock_write(int);
1.162 dsl 475: void p_sugid(struct proc *);
1.98 thorpej 476:
1.122 lukem 477: /* Compatibility with old, non-interlocked tsleep call */
1.98 thorpej 478: #define tsleep(chan, pri, wmesg, timo) \
479: ltsleep(chan, pri, wmesg, timo, NULL)
1.102 thorpej 480:
481: #if defined(MULTIPROCESSOR)
482: void proc_trampoline_mp(void); /* XXX */
1.139 yamt 483: #endif
484:
485: #ifdef KSTACK_CHECK_MAGIC
1.154 yamt 486: void kstack_setup_magic(const struct lwp *);
487: void kstack_check_magic(const struct lwp *);
1.139 yamt 488: #endif
489:
490: /*
491: * kernel stack paramaters
492: * XXX require sizeof(struct user)
493: */
494: /* the lowest address of kernel stack */
495: #ifndef KSTACK_LOWEST_ADDR
1.154 yamt 496: #define KSTACK_LOWEST_ADDR(l) ((caddr_t)ALIGN((l)->l_addr + 1))
1.139 yamt 497: #endif
498: /* size of kernel stack */
499: #ifndef KSTACK_SIZE
500: #define KSTACK_SIZE (USPACE - ALIGN(sizeof(struct user)))
1.102 thorpej 501: #endif
1.98 thorpej 502:
1.38 jtc 503: #endif /* _KERNEL */
1.29 cgd 504: #endif /* !_SYS_PROC_H_ */
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