Annotation of src/sys/sys/proc.h, Revision 1.322
1.322 ! martin 1: /* $NetBSD: proc.h,v 1.321 2015/03/07 16:34:55 christos Exp $ */
1.233 ad 2:
3: /*-
1.270 ad 4: * Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
1.233 ad 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: *
19: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29: * POSSIBILITY OF SUCH DAMAGE.
30: */
1.29 cgd 31:
32: /*-
33: * Copyright (c) 1986, 1989, 1991, 1993
34: * The Regents of the University of California. All rights reserved.
35: * (c) UNIX System Laboratories, Inc.
36: * All or some portions of this file are derived from material licensed
37: * to the University of California by American Telephone and Telegraph
38: * Co. or Unix System Laboratories, Inc. and are reproduced herein with
39: * the permission of UNIX System Laboratories, Inc.
40: *
41: * Redistribution and use in source and binary forms, with or without
42: * modification, are permitted provided that the following conditions
43: * are met:
44: * 1. Redistributions of source code must retain the above copyright
45: * notice, this list of conditions and the following disclaimer.
46: * 2. Redistributions in binary form must reproduce the above copyright
47: * notice, this list of conditions and the following disclaimer in the
48: * documentation and/or other materials provided with the distribution.
1.168 agc 49: * 3. Neither the name of the University nor the names of its contributors
1.29 cgd 50: * may be used to endorse or promote products derived from this software
51: * without specific prior written permission.
52: *
53: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63: * SUCH DAMAGE.
64: *
1.59 fvdl 65: * @(#)proc.h 8.15 (Berkeley) 5/19/95
1.29 cgd 66: */
67:
68: #ifndef _SYS_PROC_H_
69: #define _SYS_PROC_H_
1.57 mrg 70:
1.319 dsl 71: #include <sys/lwp.h>
72:
73: #if defined(_KMEMUSER) || defined(_KERNEL)
74:
1.131 mrg 75: #if defined(_KERNEL_OPT)
1.83 thorpej 76: #include "opt_multiprocessor.h"
1.139 yamt 77: #include "opt_kstack.h"
1.224 yamt 78: #include "opt_lockdebug.h"
1.83 thorpej 79: #endif
80:
1.122 lukem 81: #include <machine/proc.h> /* Machine-dependent proc substruct */
1.318 msaitoh 82: #include <machine/pcb.h>
1.245 rmind 83: #include <sys/aio.h>
1.233 ad 84: #include <sys/rwlock.h>
1.254 rmind 85: #include <sys/mqueue.h>
1.233 ad 86: #include <sys/mutex.h>
87: #include <sys/condvar.h>
1.32 mycroft 88: #include <sys/queue.h>
1.118 jdolecek 89: #include <sys/signalvar.h>
1.170 christos 90: #include <sys/siginfo.h>
1.147 jdolecek 91: #include <sys/event.h>
1.228 thorpej 92: #include <sys/specificdata.h>
1.29 cgd 93:
1.220 yamt 94: #ifndef _KERNEL
95: #include <sys/time.h>
96: #include <sys/resource.h>
97: #endif
98:
1.29 cgd 99: /*
100: * One structure allocated per session.
101: */
1.122 lukem 102: struct session {
103: int s_count; /* Ref cnt; pgrps in session */
1.159 dsl 104: u_int s_flags;
105: #define S_LOGIN_SET 1 /* s_login set in this session */
1.122 lukem 106: struct proc *s_leader; /* Session leader */
107: struct vnode *s_ttyvp; /* Vnode of controlling terminal */
108: struct tty *s_ttyp; /* Controlling terminal */
109: char s_login[MAXLOGNAME]; /* Setlogin() name */
110: pid_t s_sid; /* Session ID (pid of leader) */
1.29 cgd 111: };
112:
113: /*
114: * One structure allocated per process group.
115: */
1.122 lukem 116: struct pgrp {
117: LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members */
118: struct session *pg_session; /* Pointer to session */
119: pid_t pg_id; /* Pgrp id */
120: int pg_jobc; /*
121: * Number of processes qualifying
122: * pgrp for job control
123: */
1.29 cgd 124: };
125:
126: /*
1.40 christos 127: * One structure allocated per emulation.
128: */
129: struct exec_package;
1.144 gmcgarry 130: struct ras;
1.221 elad 131: struct kauth_cred;
1.40 christos 132:
1.122 lukem 133: struct emul {
134: const char *e_name; /* Symbolic name */
135: const char *e_path; /* Extra emulation path (NULL if none)*/
1.130 manu 136: #ifndef __HAVE_MINIMAL_EMUL
1.129 manu 137: int e_flags; /* Miscellaneous flags, see above */
1.116 mycroft 138: /* Syscall handling function */
1.122 lukem 139: const int *e_errno; /* Errno array */
140: int e_nosys; /* Offset of the nosys() syscall */
141: int e_nsysent; /* Number of system call entries */
1.116 mycroft 142: #endif
1.282 ad 143: struct sysent *e_sysent; /* System call array */
1.122 lukem 144: const char * const *e_syscallnames; /* System call name array */
1.120 jdolecek 145: /* Signal sending function */
1.196 perry 146: void (*e_sendsig)(const struct ksiginfo *,
147: const sigset_t *);
1.233 ad 148: void (*e_trapsignal)(struct lwp *, struct ksiginfo *);
1.196 perry 149: int (*e_tracesig)(struct proc *, int);
1.122 lukem 150: char *e_sigcode; /* Start of sigcode */
151: char *e_esigcode; /* End of sigcode */
1.134 jdolecek 152: /* Set registers before execution */
1.169 chs 153: struct uvm_object **e_sigobject;/* shared sigcode object */
1.196 perry 154: void (*e_setregs)(struct lwp *, struct exec_package *,
1.294 matt 155: vaddr_t);
1.106 jdolecek 156:
1.112 jdolecek 157: /* Per-process hooks */
1.196 perry 158: void (*e_proc_exec)(struct proc *, struct exec_package *);
1.298 chs 159: void (*e_proc_fork)(struct proc *, struct lwp *, int);
1.196 perry 160: void (*e_proc_exit)(struct proc *);
161: void (*e_lwp_fork)(struct lwp *, struct lwp *);
162: void (*e_lwp_exit)(struct lwp *);
1.112 jdolecek 163:
1.116 mycroft 164: #ifdef __HAVE_SYSCALL_INTERN
1.196 perry 165: void (*e_syscall_intern)(struct proc *);
1.116 mycroft 166: #else
1.196 perry 167: void (*e_syscall)(void);
1.116 mycroft 168: #endif
1.180 atatat 169: /* Emulation specific sysctl data */
170: struct sysctlnode *e_sysctlovly;
1.217 drochner 171: int (*e_fault)(struct proc *, vaddr_t, int);
1.198 fvdl 172:
173: vaddr_t (*e_vm_default_addr)(struct proc *, vaddr_t, vsize_t);
1.200 fvdl 174:
175: /* Emulation-specific hook for userspace page faults */
176: int (*e_usertrap)(struct lwp *, vaddr_t, void *);
1.218 cube 177:
1.233 ad 178: size_t e_ucsize; /* size of ucontext_t */
1.239 cube 179: void (*e_startlwp)(void *);
1.321 christos 180:
181: /* Dtrace syscall probe */
182: void (*e_dtrace_syscall)(uint32_t, register_t,
183: const struct sysent *, const void *,
184: const register_t *, int);
1.40 christos 185: };
186:
1.197 perry 187: /*
1.127 manu 188: * Emulation miscelaneous flags
189: */
1.122 lukem 190: #define EMUL_HAS_SYS___syscall 0x001 /* Has SYS___syscall */
1.114 mycroft 191:
1.40 christos 192: /*
1.29 cgd 193: * Description of a process.
194: *
195: * This structure contains the information needed to manage a thread of
196: * control, known in UN*X as a process; it has references to substructures
197: * containing descriptions of things that the process uses, but may share
198: * with related processes. The process structure and the substructures
199: * are always addressible except for those marked "(PROC ONLY)" below,
200: * which might be addressible only on a processor on which the process
201: * is running.
1.175 dsl 202: *
1.307 rmind 203: * Field markings and the corresponding locks:
1.223 ad 204: *
1.268 ad 205: * a: p_auxlock
1.233 ad 206: * k: ktrace_mutex
1.272 ad 207: * l: proc_lock
1.233 ad 208: * t: p_stmutex
1.273 ad 209: * p: p_lock
1.307 rmind 210: * (: updated atomically
1.270 ad 211: * :: unlocked, stable
1.29 cgd 212: */
1.308 uebayasi 213: struct vmspace;
214:
1.122 lukem 215: struct proc {
1.272 ad 216: LIST_ENTRY(proc) p_list; /* l: List of all processes */
1.122 lukem 217:
1.268 ad 218: kmutex_t p_auxlock; /* :: secondary, longer term lock */
1.273 ad 219: kmutex_t *p_lock; /* :: general mutex */
1.233 ad 220: kmutex_t p_stmutex; /* :: mutex on profiling state */
1.260 ad 221: krwlock_t p_reflock; /* p: lock for debugger, procfs */
1.273 ad 222: kcondvar_t p_waitcv; /* p: wait, stop CV on children */
223: kcondvar_t p_lwpcv; /* p: wait, stop CV on LWPs */
1.317 rmind 224:
1.122 lukem 225: /* Substructures: */
1.233 ad 226: struct kauth_cred *p_cred; /* p: Master copy of credentials */
1.270 ad 227: struct filedesc *p_fd; /* :: Ptr to open files structure */
228: struct cwdinfo *p_cwdi; /* :: cdir/rdir/cmask info */
229: struct pstats *p_stats; /* :: Accounting/stats (PROC ONLY) */
230: struct plimit *p_limit; /* :: Process limits */
231: struct vmspace *p_vmspace; /* :: Address space */
232: struct sigacts *p_sigacts; /* :: Process sigactions */
1.245 rmind 233: struct aioproc *p_aio; /* p: Asynchronous I/O data */
1.307 rmind 234: u_int p_mqueue_cnt; /* (: Count of open message queues */
1.228 thorpej 235: specificdata_reference
1.270 ad 236: p_specdataref; /* subsystem proc-specific data */
1.228 thorpej 237:
1.233 ad 238: int p_exitsig; /* l: signal to send to parent on exit */
1.289 yamt 239: int p_flag; /* p: PK_* flags */
1.273 ad 240: int p_sflag; /* p: PS_* flags */
1.233 ad 241: int p_slflag; /* s, l: PSL_* flags */
242: int p_lflag; /* l: PL_* flags */
243: int p_stflag; /* t: PST_* flags */
1.273 ad 244: char p_stat; /* p: S* process status. */
245: char p_trace_enabled;/* p: cached by syscall_intern() */
1.270 ad 246: char p_pad1[2]; /* unused */
1.122 lukem 247:
1.270 ad 248: pid_t p_pid; /* :: Process identifier. */
1.176 dsl 249: LIST_ENTRY(proc) p_pglist; /* l: List of processes in pgrp. */
250: struct proc *p_pptr; /* l: Pointer to parent process. */
251: LIST_ENTRY(proc) p_sibling; /* l: List of sibling processes. */
1.233 ad 252: LIST_HEAD(, proc) p_children; /* l: List of children. */
1.273 ad 253: LIST_HEAD(, lwp) p_lwps; /* p: List of LWPs. */
1.268 ad 254: struct ras *p_raslist; /* a: List of RAS entries */
1.29 cgd 255:
1.153 thorpej 256: /* The following fields are all zeroed upon creation in fork. */
257: #define p_startzero p_nlwps
258:
1.273 ad 259: int p_nlwps; /* p: Number of LWPs */
260: int p_nzlwps; /* p: Number of zombie LWPs */
261: int p_nrlwps; /* p: Number running/sleeping LWPs */
262: int p_nlwpwait; /* p: Number of LWPs in lwp_wait1() */
263: int p_ndlwps; /* p: Number of detached LWPs */
264: int p_nlwpid; /* p: Next LWP ID */
1.272 ad 265: u_int p_nstopchild; /* l: Count of stopped/dead children */
266: u_int p_waited; /* l: parent has waited on child */
1.273 ad 267: struct lwp *p_zomblwp; /* p: detached LWP to be reaped */
1.317 rmind 268: struct lwp *p_vforklwp; /* p: parent LWP waiting at vfork() */
1.29 cgd 269:
1.153 thorpej 270: /* scheduling */
1.273 ad 271: void *p_sched_info; /* p: Scheduler-specific structure */
272: fixpt_t p_estcpu; /* p: Time avg. value of p_cpticks */
273: fixpt_t p_estcpu_inherited; /* p: cpu inherited from children */
1.210 yamt 274: unsigned int p_forktime;
1.273 ad 275: fixpt_t p_pctcpu; /* p: %cpu from dead LWPs */
1.197 perry 276:
1.233 ad 277: struct proc *p_opptr; /* l: save parent during ptrace. */
278: struct ptimers *p_timers; /* Timers: real, virtual, profiling */
1.273 ad 279: struct bintime p_rtime; /* p: real time */
1.233 ad 280: u_quad_t p_uticks; /* t: Statclock hits in user mode */
281: u_quad_t p_sticks; /* t: Statclock hits in system mode */
282: u_quad_t p_iticks; /* t: Statclock hits processing intr */
283:
284: int p_traceflag; /* k: Kernel trace points */
285: void *p_tracep; /* k: Trace private data */
1.270 ad 286: struct vnode *p_textvp; /* :: Vnode of executable */
1.233 ad 287:
1.283 ad 288: struct emul *p_emul; /* :: emulation information */
1.270 ad 289: void *p_emuldata; /* :: per-proc emul data, or NULL */
290: const struct execsw *p_execsw; /* :: exec package information */
291: struct klist p_klist; /* p: knotes attached to proc */
1.197 perry 292:
1.273 ad 293: LIST_HEAD(, lwp) p_sigwaiters; /* p: LWPs waiting for signals */
294: sigpend_t p_sigpend; /* p: pending signals */
1.270 ad 295: struct lcproc *p_lwpctl; /* p, a: _lwp_ctl() information */
1.277 ad 296: pid_t p_ppid; /* :: cached parent pid */
1.310 christos 297: pid_t p_fpid; /* :: forked pid */
1.29 cgd 298:
1.122 lukem 299: /*
300: * End area that is zeroed on creation
301: */
1.29 cgd 302: #define p_endzero p_startcopy
303:
1.122 lukem 304: /*
305: * The following fields are all copied upon creation in fork.
306: */
1.233 ad 307: #define p_startcopy p_sigctx
1.122 lukem 308:
1.273 ad 309: struct sigctx p_sigctx; /* p: Shared signal state */
1.29 cgd 310:
1.273 ad 311: u_char p_nice; /* p: Process "nice" value */
1.233 ad 312: char p_comm[MAXCOMLEN+1];
313: /* p: basename of last exec file */
314: struct pgrp *p_pgrp; /* l: Pointer to process group */
315:
1.301 joerg 316: vaddr_t p_psstrp; /* :: address of process's ps_strings */
1.279 ad 317: u_int p_pax; /* :: PAX flags */
1.29 cgd 318:
1.197 perry 319: /*
1.122 lukem 320: * End area that is copied on creation
321: */
1.153 thorpej 322: #define p_endcopy p_xstat
1.122 lukem 323:
1.273 ad 324: u_short p_xstat; /* p: Exit status for wait; also stop signal */
1.223 ad 325: u_short p_acflag; /* p: Acc. flags; see struct lwp also */
1.270 ad 326: struct mdproc p_md; /* p: Any machine-dependent fields */
327: vaddr_t p_stackbase; /* :: ASLR randomized stack base */
1.295 darran 328: struct kdtrace_proc *p_dtrace; /* :: DTrace-specific data. */
1.29 cgd 329: };
330:
1.233 ad 331: #define p_rlimit p_limit->pl_rlimit
1.29 cgd 332: #define p_session p_pgrp->pg_session
333: #define p_pgid p_pgrp->pg_id
334:
1.319 dsl 335: #endif /* _KMEMUSER || _KERNEL */
336:
1.91 thorpej 337: /*
338: * Status values.
339: */
1.122 lukem 340: #define SIDL 1 /* Process being created by fork */
1.153 thorpej 341: #define SACTIVE 2 /* Process is not stopped */
1.233 ad 342: #define SDYING 3 /* About to die */
1.122 lukem 343: #define SSTOP 4 /* Process debugging or suspension */
344: #define SZOMB 5 /* Awaiting collection by parent */
1.233 ad 345: #define SDEAD 6 /* Almost a zombie */
1.79 thorpej 346:
1.233 ad 347: #define P_ZOMBIE(p) \
348: ((p)->p_stat == SZOMB || (p)->p_stat == SDYING || (p)->p_stat == SDEAD)
1.29 cgd 349:
1.233 ad 350: /*
1.273 ad 351: * These flags are kept in p_flag and are protected by p_lock. Access from
1.233 ad 352: * process context only.
353: */
1.237 pavel 354: #define PK_ADVLOCK 0x00000001 /* Process may hold a POSIX advisory lock */
355: #define PK_SYSTEM 0x00000002 /* System process (kthread) */
1.274 ad 356: #define PK_SYSVSEM 0x00000004 /* Used SysV semaphores */
1.237 pavel 357: #define PK_SUGID 0x00000100 /* Had set id privileges since last exec */
358: #define PK_EXEC 0x00004000 /* Process called exec */
359: #define PK_NOCLDWAIT 0x00020000 /* No zombies if child dies */
360: #define PK_32 0x00040000 /* 32-bit process (used on 64-bit kernels) */
361: #define PK_CLDSIGIGN 0x00080000 /* Process is ignoring SIGCHLD */
362: #define PK_MARKER 0x80000000 /* Is a dummy marker process */
1.29 cgd 363:
1.233 ad 364: /*
1.273 ad 365: * These flags are kept in p_sflag and are protected by p_lock. Access from
366: * process context only.
1.233 ad 367: */
368: #define PS_NOCLDSTOP 0x00000008 /* No SIGCHLD when children stop */
1.316 rmind 369: #define PS_RUMP_LWPEXIT 0x00000400 /* LWPs in RUMP kernel should exit for GC */
1.233 ad 370: #define PS_WCORE 0x00001000 /* Process needs to dump core */
371: #define PS_WEXIT 0x00002000 /* Working on exiting */
372: #define PS_STOPFORK 0x00800000 /* Child will be stopped on fork(2) */
373: #define PS_STOPEXEC 0x01000000 /* Will be stopped on exec(2) */
374: #define PS_STOPEXIT 0x02000000 /* Will be stopped at process exit */
375: #define PS_NOTIFYSTOP 0x10000000 /* Notify parent of successful STOP */
376: #define PS_STOPPING 0x80000000 /* Transitioning SACTIVE -> SSTOP */
377:
378: /*
1.272 ad 379: * These flags are kept in p_sflag and are protected by the proc_lock
1.273 ad 380: * and p_lock. Access from process context only.
1.233 ad 381: */
1.310 christos 382: #define PSL_TRACEFORK 0x00000001 /* traced process wants fork events */
1.233 ad 383: #define PSL_TRACED 0x00000800 /* Debugged process being traced */
384: #define PSL_FSTRACE 0x00010000 /* Debugger process being traced by procfs */
385: #define PSL_CHTRACED 0x00400000 /* Child has been traced & reparented */
386: #define PSL_SYSCALL 0x04000000 /* process has PT_SYSCALL enabled */
1.309 jmcneill 387: #define PSL_SYSCALLEMU 0x08000000 /* cancel in-progress syscall */
1.233 ad 388:
389: /*
390: * Kept in p_stflag and protected by p_stmutex.
391: */
392: #define PST_PROFIL 0x00000020 /* Has started profiling */
393:
394: /*
1.272 ad 395: * The final set are protected by the proc_lock. Access
1.233 ad 396: * from process context only.
397: */
398: #define PL_CONTROLT 0x00000002 /* Has a controlling terminal */
1.280 ad 399: #define PL_PPWAIT 0x00000010 /* Parent is waiting for child exec/exit */
1.283 ad 400: #define PL_SIGCOMPAT 0x00000200 /* Has used compat signal trampoline */
1.272 ad 401: #define PL_ORPHANPG 0x20000000 /* Member of an orphaned pgrp */
1.219 christos 402:
1.319 dsl 403: #if defined(_KMEMUSER) || defined(_KERNEL)
404:
1.29 cgd 405: /*
1.78 thorpej 406: * Macro to compute the exit signal to be delivered.
1.76 thorpej 407: */
1.233 ad 408: #define P_EXITSIG(p) \
409: (((p)->p_slflag & (PSL_TRACED|PSL_FSTRACE)) ? SIGCHLD : p->p_exitsig)
1.76 thorpej 410:
1.122 lukem 411: LIST_HEAD(proclist, proc); /* A list of processes */
1.64 thorpej 412:
413: /*
414: * This structure associates a proclist with its lock.
415: */
416: struct proclist_desc {
1.122 lukem 417: struct proclist *pd_list; /* The list */
1.64 thorpej 418: /*
419: * XXX Add a pointer to the proclist's lock eventually.
420: */
421: };
422:
1.38 jtc 423: #ifdef _KERNEL
1.156 thorpej 424:
1.29 cgd 425: /*
1.162 dsl 426: * We use process IDs <= PID_MAX until there are > 16k processes.
427: * NO_PGID is used to represent "no process group" for a tty.
1.29 cgd 428: */
429: #define PID_MAX 30000
1.163 jdolecek 430: #define NO_PGID ((pid_t)-1)
1.29 cgd 431:
1.122 lukem 432: #define SESS_LEADER(p) ((p)->p_session->s_leader == (p))
1.54 thorpej 433:
434: /*
435: * Flags passed to fork1().
436: */
1.255 dsl 437: #define FORK_PPWAIT 0x0001 /* Block parent until child exit */
438: #define FORK_SHAREVM 0x0002 /* Share vmspace with parent */
439: #define FORK_SHARECWD 0x0004 /* Share cdir/rdir/cmask */
440: #define FORK_SHAREFILES 0x0008 /* Share file descriptors */
441: #define FORK_SHARESIGS 0x0010 /* Share signal actions */
442: #define FORK_NOWAIT 0x0020 /* Make init the parent of the child */
443: #define FORK_CLEANFILES 0x0040 /* Start with a clean descriptor set */
444: #define FORK_SYSTEM 0x0080 /* Fork a kernel thread */
1.41 mycroft 445:
1.122 lukem 446: extern struct proc proc0; /* Process slot for swapper */
1.262 ad 447: extern u_int nprocs; /* Current number of procs */
448: extern int maxproc; /* Max number of procs */
1.213 yamt 449: #define vmspace_kernel() (proc0.p_vmspace)
1.29 cgd 450:
1.272 ad 451: extern kmutex_t *proc_lock;
1.122 lukem 452: extern struct proclist allproc; /* List of all processes */
453: extern struct proclist zombproc; /* List of zombie processes */
1.79 thorpej 454:
1.122 lukem 455: extern struct proc *initproc; /* Process slots for init, pager */
1.61 thorpej 456:
1.64 thorpej 457: extern const struct proclist_desc proclists[];
458:
1.153 thorpej 459: extern struct pool ptimer_pool; /* Memory pool for ptimers */
1.29 cgd 460:
1.297 rmind 461: proc_t * proc_find_raw(pid_t);
462: proc_t * proc_find(pid_t); /* Find process by ID */
463: struct pgrp * pgrp_find(pid_t); /* Find process group by ID */
1.288 rmind 464:
465: void procinit(void);
1.300 pooka 466: void procinit_sysctl(void);
1.288 rmind 467: int proc_enterpgrp(struct proc *, pid_t, pid_t, bool);
468: void proc_leavepgrp(struct proc *);
469: void proc_sesshold(struct session *);
470: void proc_sessrele(struct session *);
1.167 itojun 471: void fixjobc(struct proc *, struct pgrp *, int);
1.287 rmind 472:
1.314 rmind 473: int tsleep(wchan_t, pri_t, const char *, int);
1.244 ad 474: int mtsleep(wchan_t, pri_t, const char *, int, kmutex_t *);
1.233 ad 475: void wakeup(wchan_t);
1.240 thorpej 476: int kpause(const char *, bool, int, kmutex_t *);
1.264 perry 477: void exit1(struct lwp *, int) __dead;
1.322 ! martin 478: int kill1(struct lwp *l, pid_t pid, ksiginfo_t *ksi, register_t *retval);
1.293 rmind 479: int do_sys_wait(int *, int *, int, struct rusage *);
1.162 dsl 480: struct proc *proc_alloc(void);
1.204 junyoung 481: void proc0_init(void);
1.298 chs 482: pid_t proc_alloc_pid(struct proc *);
483: void proc_free_pid(pid_t);
1.265 ad 484: void proc_free_mem(struct proc *);
1.153 thorpej 485: void exit_lwps(struct lwp *l);
486: int fork1(struct lwp *, int, int, void *, size_t,
1.122 lukem 487: void (*)(void *), void *, register_t *, struct proc **);
1.161 dsl 488: int pgid_in_session(struct proc *, pid_t);
1.153 thorpej 489: void cpu_lwp_fork(struct lwp *, struct lwp *, void *, size_t,
1.122 lukem 490: void (*)(void *), void *);
1.186 jdolecek 491: void cpu_lwp_free(struct lwp *, int);
1.233 ad 492: void cpu_lwp_free2(struct lwp *);
1.315 martin 493: void cpu_spawn_return(struct lwp*);
1.122 lukem 494:
1.202 christos 495: #ifdef __HAVE_SYSCALL_INTERN
496: void syscall_intern(struct proc *);
497: #endif
498:
1.122 lukem 499: void child_return(void *);
500:
1.209 christos 501: int proc_isunder(struct proc *, struct lwp *);
1.233 ad 502: void proc_stop(struct proc *, int, int);
1.291 elad 503: int proc_uidmatch(kauth_cred_t, kauth_cred_t);
1.122 lukem 504:
1.213 yamt 505: int proc_vmspace_getref(struct proc *, struct vmspace **);
1.240 thorpej 506: void proc_crmod_leave(kauth_cred_t, kauth_cred_t, bool);
1.233 ad 507: void proc_crmod_enter(void);
1.213 yamt 508:
1.228 thorpej 509: int proc_specific_key_create(specificdata_key_t *, specificdata_dtor_t);
510: void proc_specific_key_delete(specificdata_key_t);
1.287 rmind 511: void proc_initspecific(struct proc *);
512: void proc_finispecific(struct proc *);
1.228 thorpej 513: void * proc_getspecific(struct proc *, specificdata_key_t);
514: void proc_setspecific(struct proc *, specificdata_key_t, void *);
1.311 christos 515: int proc_compare(const struct proc *, const struct lwp *,
516: const struct proc *, const struct lwp *);
1.228 thorpej 517:
1.195 yamt 518: int proclist_foreach_call(struct proclist *,
519: int (*)(struct proc *, void *arg), void *);
520:
1.287 rmind 521: static inline struct proc *
1.195 yamt 522: _proclist_skipmarker(struct proc *p0)
523: {
524: struct proc *p = p0;
525:
1.237 pavel 526: while (p != NULL && p->p_flag & PK_MARKER)
1.195 yamt 527: p = LIST_NEXT(p, p_list);
528:
529: return p;
530: }
1.296 yamt 531:
532: /*
533: * PROCLIST_FOREACH: iterate on the given proclist, skipping PK_MARKER ones.
534: */
1.195 yamt 535: #define PROCLIST_FOREACH(var, head) \
536: for ((var) = LIST_FIRST(head); \
537: ((var) = _proclist_skipmarker(var)) != NULL; \
538: (var) = LIST_NEXT(var, p_list))
539:
1.303 mrg 540: #ifdef KSTACK_CHECK_MAGIC
541: void kstack_setup_magic(const struct lwp *);
542: void kstack_check_magic(const struct lwp *);
543: #else
544: #define kstack_setup_magic(x)
545: #define kstack_check_magic(x)
546: #endif
547:
548: extern struct emul emul_netbsd;
549:
550: #endif /* _KERNEL */
551:
1.139 yamt 552: /*
1.299 rmind 553: * Kernel stack parameters.
554: *
555: * KSTACK_LOWEST_ADDR: return the lowest address of the LWP's kernel stack,
556: * excluding red-zone.
557: *
558: * KSTACK_SIZE: the size kernel stack for a LWP, excluding red-zone.
1.290 yamt 559: *
560: * if <machine/proc.h> provides the MD definition, it will be used.
561: */
1.139 yamt 562: #ifndef KSTACK_LOWEST_ADDR
1.299 rmind 563: #define KSTACK_LOWEST_ADDR(l) ((void *)ALIGN((struct pcb *)((l)->l_addr) + 1))
1.139 yamt 564: #endif
565: #ifndef KSTACK_SIZE
1.299 rmind 566: #define KSTACK_SIZE (USPACE - ALIGN(sizeof(struct pcb)))
567: #endif
568:
1.303 mrg 569: #endif /* _KMEMUSER || _KERNEL */
1.98 thorpej 570:
1.29 cgd 571: #endif /* !_SYS_PROC_H_ */
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