Wed May 27 12:15:11 2009 UTC ()
add comments on KSTACK_LOWEST_ADDR/KSTACK_SIZE.


(yamt)
diff -r1.289 -r1.290 src/sys/sys/proc.h

cvs diff -r1.289 -r1.290 src/sys/sys/proc.h (switch to unified diff)

--- src/sys/sys/proc.h 2009/05/14 23:12:14 1.289
+++ src/sys/sys/proc.h 2009/05/27 12:15:11 1.290
@@ -1,571 +1,580 @@ @@ -1,571 +1,580 @@
1/* $NetBSD: proc.h,v 1.289 2009/05/14 23:12:14 yamt Exp $ */ 1/* $NetBSD: proc.h,v 1.290 2009/05/27 12:15:11 yamt Exp $ */
2 2
3/*- 3/*-
4 * Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc. 4 * Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * This code is derived from software contributed to The NetBSD Foundation 7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran. 8 * by Andrew Doran.
9 * 9 *
10 * Redistribution and use in source and binary forms, with or without 10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions 11 * modification, are permitted provided that the following conditions
12 * are met: 12 * are met:
13 * 1. Redistributions of source code must retain the above copyright 13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer. 14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright 15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the 16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution. 17 * documentation and/or other materials provided with the distribution.
18 * 18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 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 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 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 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 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 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 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE. 29 * POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31 31
32/*- 32/*-
33 * Copyright (c) 1986, 1989, 1991, 1993 33 * Copyright (c) 1986, 1989, 1991, 1993
34 * The Regents of the University of California. All rights reserved. 34 * The Regents of the University of California. All rights reserved.
35 * (c) UNIX System Laboratories, Inc. 35 * (c) UNIX System Laboratories, Inc.
36 * All or some portions of this file are derived from material licensed 36 * All or some portions of this file are derived from material licensed
37 * to the University of California by American Telephone and Telegraph 37 * to the University of California by American Telephone and Telegraph
38 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 38 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
39 * the permission of UNIX System Laboratories, Inc. 39 * the permission of UNIX System Laboratories, Inc.
40 * 40 *
41 * Redistribution and use in source and binary forms, with or without 41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions 42 * modification, are permitted provided that the following conditions
43 * are met: 43 * are met:
44 * 1. Redistributions of source code must retain the above copyright 44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer. 45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright 46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the 47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution. 48 * documentation and/or other materials provided with the distribution.
49 * 3. Neither the name of the University nor the names of its contributors 49 * 3. Neither the name of the University nor the names of its contributors
50 * may be used to endorse or promote products derived from this software 50 * may be used to endorse or promote products derived from this software
51 * without specific prior written permission. 51 * without specific prior written permission.
52 * 52 *
53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 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 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 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 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 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 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 * SUCH DAMAGE. 63 * SUCH DAMAGE.
64 * 64 *
65 * @(#)proc.h 8.15 (Berkeley) 5/19/95 65 * @(#)proc.h 8.15 (Berkeley) 5/19/95
66 */ 66 */
67 67
68#ifndef _SYS_PROC_H_ 68#ifndef _SYS_PROC_H_
69#define _SYS_PROC_H_ 69#define _SYS_PROC_H_
70 70
71#if defined(_KERNEL_OPT) 71#if defined(_KERNEL_OPT)
72#include "opt_multiprocessor.h" 72#include "opt_multiprocessor.h"
73#include "opt_kstack.h" 73#include "opt_kstack.h"
74#include "opt_lockdebug.h" 74#include "opt_lockdebug.h"
75#endif 75#endif
76 76
77#include <machine/proc.h> /* Machine-dependent proc substruct */ 77#include <machine/proc.h> /* Machine-dependent proc substruct */
78#include <sys/aio.h> 78#include <sys/aio.h>
79#include <sys/rwlock.h> 79#include <sys/rwlock.h>
80#include <sys/mqueue.h> 80#include <sys/mqueue.h>
81#include <sys/mutex.h> 81#include <sys/mutex.h>
82#include <sys/condvar.h> 82#include <sys/condvar.h>
83#include <sys/lwp.h> 83#include <sys/lwp.h>
84#include <sys/queue.h> 84#include <sys/queue.h>
85#include <sys/signalvar.h> 85#include <sys/signalvar.h>
86#include <sys/siginfo.h> 86#include <sys/siginfo.h>
87#include <sys/event.h> 87#include <sys/event.h>
88#include <sys/specificdata.h> 88#include <sys/specificdata.h>
89 89
90#ifndef _KERNEL 90#ifndef _KERNEL
91#include <sys/time.h> 91#include <sys/time.h>
92#include <sys/resource.h> 92#include <sys/resource.h>
93#endif 93#endif
94 94
95/* 95/*
96 * One structure allocated per session. 96 * One structure allocated per session.
97 */ 97 */
98struct session { 98struct session {
99 int s_count; /* Ref cnt; pgrps in session */ 99 int s_count; /* Ref cnt; pgrps in session */
100 u_int s_flags; 100 u_int s_flags;
101#define S_LOGIN_SET 1 /* s_login set in this session */ 101#define S_LOGIN_SET 1 /* s_login set in this session */
102 struct proc *s_leader; /* Session leader */ 102 struct proc *s_leader; /* Session leader */
103 struct vnode *s_ttyvp; /* Vnode of controlling terminal */ 103 struct vnode *s_ttyvp; /* Vnode of controlling terminal */
104 struct tty *s_ttyp; /* Controlling terminal */ 104 struct tty *s_ttyp; /* Controlling terminal */
105 char s_login[MAXLOGNAME]; /* Setlogin() name */ 105 char s_login[MAXLOGNAME]; /* Setlogin() name */
106 pid_t s_sid; /* Session ID (pid of leader) */ 106 pid_t s_sid; /* Session ID (pid of leader) */
107}; 107};
108 108
109/* 109/*
110 * One structure allocated per process group. 110 * One structure allocated per process group.
111 */ 111 */
112struct pgrp { 112struct pgrp {
113 LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members */ 113 LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members */
114 struct session *pg_session; /* Pointer to session */ 114 struct session *pg_session; /* Pointer to session */
115 pid_t pg_id; /* Pgrp id */ 115 pid_t pg_id; /* Pgrp id */
116 int pg_jobc; /* 116 int pg_jobc; /*
117 * Number of processes qualifying 117 * Number of processes qualifying
118 * pgrp for job control 118 * pgrp for job control
119 */ 119 */
120}; 120};
121 121
122/* 122/*
123 * One structure allocated per emulation. 123 * One structure allocated per emulation.
124 */ 124 */
125struct exec_package; 125struct exec_package;
126struct ps_strings; 126struct ps_strings;
127struct ras; 127struct ras;
128struct kauth_cred; 128struct kauth_cred;
129 129
130struct emul { 130struct emul {
131 const char *e_name; /* Symbolic name */ 131 const char *e_name; /* Symbolic name */
132 const char *e_path; /* Extra emulation path (NULL if none)*/ 132 const char *e_path; /* Extra emulation path (NULL if none)*/
133#ifndef __HAVE_MINIMAL_EMUL 133#ifndef __HAVE_MINIMAL_EMUL
134 int e_flags; /* Miscellaneous flags, see above */ 134 int e_flags; /* Miscellaneous flags, see above */
135 /* Syscall handling function */ 135 /* Syscall handling function */
136 const int *e_errno; /* Errno array */ 136 const int *e_errno; /* Errno array */
137 int e_nosys; /* Offset of the nosys() syscall */ 137 int e_nosys; /* Offset of the nosys() syscall */
138 int e_nsysent; /* Number of system call entries */ 138 int e_nsysent; /* Number of system call entries */
139#endif 139#endif
140 struct sysent *e_sysent; /* System call array */ 140 struct sysent *e_sysent; /* System call array */
141 const char * const *e_syscallnames; /* System call name array */ 141 const char * const *e_syscallnames; /* System call name array */
142 /* Signal sending function */ 142 /* Signal sending function */
143 void (*e_sendsig)(const struct ksiginfo *, 143 void (*e_sendsig)(const struct ksiginfo *,
144 const sigset_t *); 144 const sigset_t *);
145 void (*e_trapsignal)(struct lwp *, struct ksiginfo *); 145 void (*e_trapsignal)(struct lwp *, struct ksiginfo *);
146 int (*e_tracesig)(struct proc *, int); 146 int (*e_tracesig)(struct proc *, int);
147 char *e_sigcode; /* Start of sigcode */ 147 char *e_sigcode; /* Start of sigcode */
148 char *e_esigcode; /* End of sigcode */ 148 char *e_esigcode; /* End of sigcode */
149 /* Set registers before execution */ 149 /* Set registers before execution */
150 struct uvm_object **e_sigobject;/* shared sigcode object */ 150 struct uvm_object **e_sigobject;/* shared sigcode object */
151 void (*e_setregs)(struct lwp *, struct exec_package *, 151 void (*e_setregs)(struct lwp *, struct exec_package *,
152 u_long); 152 u_long);
153 153
154 /* Per-process hooks */ 154 /* Per-process hooks */
155 void (*e_proc_exec)(struct proc *, struct exec_package *); 155 void (*e_proc_exec)(struct proc *, struct exec_package *);
156 void (*e_proc_fork)(struct proc *, struct proc *, int); 156 void (*e_proc_fork)(struct proc *, struct proc *, int);
157 void (*e_proc_exit)(struct proc *); 157 void (*e_proc_exit)(struct proc *);
158 void (*e_lwp_fork)(struct lwp *, struct lwp *); 158 void (*e_lwp_fork)(struct lwp *, struct lwp *);
159 void (*e_lwp_exit)(struct lwp *); 159 void (*e_lwp_exit)(struct lwp *);
160 160
161#ifdef __HAVE_SYSCALL_INTERN 161#ifdef __HAVE_SYSCALL_INTERN
162 void (*e_syscall_intern)(struct proc *); 162 void (*e_syscall_intern)(struct proc *);
163#else 163#else
164 void (*e_syscall)(void); 164 void (*e_syscall)(void);
165#endif 165#endif
166 /* Emulation specific sysctl data */ 166 /* Emulation specific sysctl data */
167 struct sysctlnode *e_sysctlovly; 167 struct sysctlnode *e_sysctlovly;
168 int (*e_fault)(struct proc *, vaddr_t, int); 168 int (*e_fault)(struct proc *, vaddr_t, int);
169 169
170 vaddr_t (*e_vm_default_addr)(struct proc *, vaddr_t, vsize_t); 170 vaddr_t (*e_vm_default_addr)(struct proc *, vaddr_t, vsize_t);
171 171
172 /* Emulation-specific hook for userspace page faults */ 172 /* Emulation-specific hook for userspace page faults */
173 int (*e_usertrap)(struct lwp *, vaddr_t, void *); 173 int (*e_usertrap)(struct lwp *, vaddr_t, void *);
174 174
175 /* SA-related information */ 175 /* SA-related information */
176 const struct sa_emul *e_sa; 176 const struct sa_emul *e_sa;
177 177
178 size_t e_ucsize; /* size of ucontext_t */ 178 size_t e_ucsize; /* size of ucontext_t */
179 void (*e_startlwp)(void *); 179 void (*e_startlwp)(void *);
180}; 180};
181 181
182/* 182/*
183 * Emulation miscelaneous flags 183 * Emulation miscelaneous flags
184 */ 184 */
185#define EMUL_HAS_SYS___syscall 0x001 /* Has SYS___syscall */ 185#define EMUL_HAS_SYS___syscall 0x001 /* Has SYS___syscall */
186 186
187/* 187/*
188 * Description of a process. 188 * Description of a process.
189 * 189 *
190 * This structure contains the information needed to manage a thread of 190 * This structure contains the information needed to manage a thread of
191 * control, known in UN*X as a process; it has references to substructures 191 * control, known in UN*X as a process; it has references to substructures
192 * containing descriptions of things that the process uses, but may share 192 * containing descriptions of things that the process uses, but may share
193 * with related processes. The process structure and the substructures 193 * with related processes. The process structure and the substructures
194 * are always addressible except for those marked "(PROC ONLY)" below, 194 * are always addressible except for those marked "(PROC ONLY)" below,
195 * which might be addressible only on a processor on which the process 195 * which might be addressible only on a processor on which the process
196 * is running. 196 * is running.
197 * 197 *
198 * Field markings and the corresponding locks (not yet fully implemented, 198 * Field markings and the corresponding locks (not yet fully implemented,
199 * more a statement of intent): 199 * more a statement of intent):
200 * 200 *
201 * a: p_auxlock 201 * a: p_auxlock
202 * k: ktrace_mutex 202 * k: ktrace_mutex
203 * l: proc_lock 203 * l: proc_lock
204 * t: p_stmutex 204 * t: p_stmutex
205 * p: p_lock 205 * p: p_lock
206 * q: mqlist_mtx 206 * q: mqlist_mtx
207 * :: unlocked, stable 207 * :: unlocked, stable
208 */ 208 */
209struct proc { 209struct proc {
210 LIST_ENTRY(proc) p_list; /* l: List of all processes */ 210 LIST_ENTRY(proc) p_list; /* l: List of all processes */
211 211
212 kmutex_t p_auxlock; /* :: secondary, longer term lock */ 212 kmutex_t p_auxlock; /* :: secondary, longer term lock */
213 kmutex_t *p_lock; /* :: general mutex */ 213 kmutex_t *p_lock; /* :: general mutex */
214 kmutex_t p_stmutex; /* :: mutex on profiling state */ 214 kmutex_t p_stmutex; /* :: mutex on profiling state */
215 krwlock_t p_reflock; /* p: lock for debugger, procfs */ 215 krwlock_t p_reflock; /* p: lock for debugger, procfs */
216 kcondvar_t p_waitcv; /* p: wait, stop CV on children */ 216 kcondvar_t p_waitcv; /* p: wait, stop CV on children */
217 kcondvar_t p_lwpcv; /* p: wait, stop CV on LWPs */ 217 kcondvar_t p_lwpcv; /* p: wait, stop CV on LWPs */
218  218
219 /* Substructures: */ 219 /* Substructures: */
220 struct kauth_cred *p_cred; /* p: Master copy of credentials */ 220 struct kauth_cred *p_cred; /* p: Master copy of credentials */
221 struct filedesc *p_fd; /* :: Ptr to open files structure */ 221 struct filedesc *p_fd; /* :: Ptr to open files structure */
222 struct cwdinfo *p_cwdi; /* :: cdir/rdir/cmask info */ 222 struct cwdinfo *p_cwdi; /* :: cdir/rdir/cmask info */
223 struct pstats *p_stats; /* :: Accounting/stats (PROC ONLY) */ 223 struct pstats *p_stats; /* :: Accounting/stats (PROC ONLY) */
224 struct plimit *p_limit; /* :: Process limits */ 224 struct plimit *p_limit; /* :: Process limits */
225 struct vmspace *p_vmspace; /* :: Address space */ 225 struct vmspace *p_vmspace; /* :: Address space */
226 struct sigacts *p_sigacts; /* :: Process sigactions */ 226 struct sigacts *p_sigacts; /* :: Process sigactions */
227 struct aioproc *p_aio; /* p: Asynchronous I/O data */ 227 struct aioproc *p_aio; /* p: Asynchronous I/O data */
228 u_int p_mqueue_cnt; /* q: Count of open mqueues */ 228 u_int p_mqueue_cnt; /* q: Count of open mqueues */
229 specificdata_reference 229 specificdata_reference
230 p_specdataref; /* subsystem proc-specific data */ 230 p_specdataref; /* subsystem proc-specific data */
231 231
232 int p_exitsig; /* l: signal to send to parent on exit */ 232 int p_exitsig; /* l: signal to send to parent on exit */
233 int p_flag; /* p: PK_* flags */ 233 int p_flag; /* p: PK_* flags */
234 int p_sflag; /* p: PS_* flags */ 234 int p_sflag; /* p: PS_* flags */
235 int p_slflag; /* s, l: PSL_* flags */ 235 int p_slflag; /* s, l: PSL_* flags */
236 int p_lflag; /* l: PL_* flags */ 236 int p_lflag; /* l: PL_* flags */
237 int p_stflag; /* t: PST_* flags */ 237 int p_stflag; /* t: PST_* flags */
238 char p_stat; /* p: S* process status. */ 238 char p_stat; /* p: S* process status. */
239 char p_trace_enabled;/* p: cached by syscall_intern() */ 239 char p_trace_enabled;/* p: cached by syscall_intern() */
240 char p_pad1[2]; /* unused */ 240 char p_pad1[2]; /* unused */
241 241
242 pid_t p_pid; /* :: Process identifier. */ 242 pid_t p_pid; /* :: Process identifier. */
243 LIST_ENTRY(proc) p_pglist; /* l: List of processes in pgrp. */ 243 LIST_ENTRY(proc) p_pglist; /* l: List of processes in pgrp. */
244 struct proc *p_pptr; /* l: Pointer to parent process. */ 244 struct proc *p_pptr; /* l: Pointer to parent process. */
245 LIST_ENTRY(proc) p_sibling; /* l: List of sibling processes. */ 245 LIST_ENTRY(proc) p_sibling; /* l: List of sibling processes. */
246 LIST_HEAD(, proc) p_children; /* l: List of children. */ 246 LIST_HEAD(, proc) p_children; /* l: List of children. */
247 LIST_HEAD(, lwp) p_lwps; /* p: List of LWPs. */ 247 LIST_HEAD(, lwp) p_lwps; /* p: List of LWPs. */
248 struct ras *p_raslist; /* a: List of RAS entries */ 248 struct ras *p_raslist; /* a: List of RAS entries */
249 249
250/* The following fields are all zeroed upon creation in fork. */ 250/* The following fields are all zeroed upon creation in fork. */
251#define p_startzero p_nlwps 251#define p_startzero p_nlwps
252 252
253 int p_nlwps; /* p: Number of LWPs */ 253 int p_nlwps; /* p: Number of LWPs */
254 int p_nzlwps; /* p: Number of zombie LWPs */ 254 int p_nzlwps; /* p: Number of zombie LWPs */
255 int p_nrlwps; /* p: Number running/sleeping LWPs */ 255 int p_nrlwps; /* p: Number running/sleeping LWPs */
256 int p_nlwpwait; /* p: Number of LWPs in lwp_wait1() */ 256 int p_nlwpwait; /* p: Number of LWPs in lwp_wait1() */
257 int p_ndlwps; /* p: Number of detached LWPs */ 257 int p_ndlwps; /* p: Number of detached LWPs */
258 int p_nlwpid; /* p: Next LWP ID */ 258 int p_nlwpid; /* p: Next LWP ID */
259 u_int p_nstopchild; /* l: Count of stopped/dead children */ 259 u_int p_nstopchild; /* l: Count of stopped/dead children */
260 u_int p_waited; /* l: parent has waited on child */ 260 u_int p_waited; /* l: parent has waited on child */
261 struct lwp *p_zomblwp; /* p: detached LWP to be reaped */ 261 struct lwp *p_zomblwp; /* p: detached LWP to be reaped */
262 262
263 struct sadata *p_sa; /* p: Scheduler activation info */ 263 struct sadata *p_sa; /* p: Scheduler activation info */
264 264
265 /* scheduling */ 265 /* scheduling */
266 void *p_sched_info; /* p: Scheduler-specific structure */ 266 void *p_sched_info; /* p: Scheduler-specific structure */
267 fixpt_t p_estcpu; /* p: Time avg. value of p_cpticks */ 267 fixpt_t p_estcpu; /* p: Time avg. value of p_cpticks */
268 fixpt_t p_estcpu_inherited; /* p: cpu inherited from children */ 268 fixpt_t p_estcpu_inherited; /* p: cpu inherited from children */
269 unsigned int p_forktime; 269 unsigned int p_forktime;
270 fixpt_t p_pctcpu; /* p: %cpu from dead LWPs */ 270 fixpt_t p_pctcpu; /* p: %cpu from dead LWPs */
271 271
272 struct proc *p_opptr; /* l: save parent during ptrace. */ 272 struct proc *p_opptr; /* l: save parent during ptrace. */
273 struct ptimers *p_timers; /* Timers: real, virtual, profiling */ 273 struct ptimers *p_timers; /* Timers: real, virtual, profiling */
274 struct bintime p_rtime; /* p: real time */ 274 struct bintime p_rtime; /* p: real time */
275 u_quad_t p_uticks; /* t: Statclock hits in user mode */ 275 u_quad_t p_uticks; /* t: Statclock hits in user mode */
276 u_quad_t p_sticks; /* t: Statclock hits in system mode */ 276 u_quad_t p_sticks; /* t: Statclock hits in system mode */
277 u_quad_t p_iticks; /* t: Statclock hits processing intr */ 277 u_quad_t p_iticks; /* t: Statclock hits processing intr */
278 278
279 int p_traceflag; /* k: Kernel trace points */ 279 int p_traceflag; /* k: Kernel trace points */
280 int p_timerpend; /* p: Pending itimer to run */ 280 int p_timerpend; /* p: Pending itimer to run */
281 void *p_tracep; /* k: Trace private data */ 281 void *p_tracep; /* k: Trace private data */
282 struct vnode *p_textvp; /* :: Vnode of executable */ 282 struct vnode *p_textvp; /* :: Vnode of executable */
283 283
284 void (*p_userret)(void);/* p: return-to-user hook */ 284 void (*p_userret)(void);/* p: return-to-user hook */
285 struct emul *p_emul; /* :: emulation information */ 285 struct emul *p_emul; /* :: emulation information */
286 void *p_emuldata; /* :: per-proc emul data, or NULL */ 286 void *p_emuldata; /* :: per-proc emul data, or NULL */
287 const struct execsw *p_execsw; /* :: exec package information */ 287 const struct execsw *p_execsw; /* :: exec package information */
288 struct klist p_klist; /* p: knotes attached to proc */ 288 struct klist p_klist; /* p: knotes attached to proc */
289 289
290 LIST_HEAD(, lwp) p_sigwaiters; /* p: LWPs waiting for signals */ 290 LIST_HEAD(, lwp) p_sigwaiters; /* p: LWPs waiting for signals */
291 sigstore_t p_sigstore; /* p: process-wide signal state */ 291 sigstore_t p_sigstore; /* p: process-wide signal state */
292 sigpend_t p_sigpend; /* p: pending signals */ 292 sigpend_t p_sigpend; /* p: pending signals */
293 struct lcproc *p_lwpctl; /* p, a: _lwp_ctl() information */ 293 struct lcproc *p_lwpctl; /* p, a: _lwp_ctl() information */
294 pid_t p_ppid; /* :: cached parent pid */ 294 pid_t p_ppid; /* :: cached parent pid */
295 295
296/* 296/*
297 * End area that is zeroed on creation 297 * End area that is zeroed on creation
298 */ 298 */
299#define p_endzero p_startcopy 299#define p_endzero p_startcopy
300 300
301/* 301/*
302 * The following fields are all copied upon creation in fork. 302 * The following fields are all copied upon creation in fork.
303 */ 303 */
304#define p_startcopy p_sigctx 304#define p_startcopy p_sigctx
305 305
306 struct sigctx p_sigctx; /* p: Shared signal state */ 306 struct sigctx p_sigctx; /* p: Shared signal state */
307 307
308 u_char p_nice; /* p: Process "nice" value */ 308 u_char p_nice; /* p: Process "nice" value */
309 char p_comm[MAXCOMLEN+1]; 309 char p_comm[MAXCOMLEN+1];
310 /* p: basename of last exec file */ 310 /* p: basename of last exec file */
311 struct pgrp *p_pgrp; /* l: Pointer to process group */ 311 struct pgrp *p_pgrp; /* l: Pointer to process group */
312 312
313 struct ps_strings *p_psstr; /* :: address of process's ps_strings */ 313 struct ps_strings *p_psstr; /* :: address of process's ps_strings */
314 size_t p_psargv; /* :: offset of ps_argvstr in above */ 314 size_t p_psargv; /* :: offset of ps_argvstr in above */
315 size_t p_psnargv; /* :: offset of ps_nargvstr in above */ 315 size_t p_psnargv; /* :: offset of ps_nargvstr in above */
316 size_t p_psenv; /* :: offset of ps_envstr in above */ 316 size_t p_psenv; /* :: offset of ps_envstr in above */
317 size_t p_psnenv; /* :: offset of ps_nenvstr in above */ 317 size_t p_psnenv; /* :: offset of ps_nenvstr in above */
318 u_int p_pax; /* :: PAX flags */ 318 u_int p_pax; /* :: PAX flags */
319 319
320/* 320/*
321 * End area that is copied on creation 321 * End area that is copied on creation
322 */ 322 */
323#define p_endcopy p_xstat 323#define p_endcopy p_xstat
324 324
325 u_short p_xstat; /* p: Exit status for wait; also stop signal */ 325 u_short p_xstat; /* p: Exit status for wait; also stop signal */
326 u_short p_acflag; /* p: Acc. flags; see struct lwp also */ 326 u_short p_acflag; /* p: Acc. flags; see struct lwp also */
327 struct mdproc p_md; /* p: Any machine-dependent fields */ 327 struct mdproc p_md; /* p: Any machine-dependent fields */
328 vaddr_t p_stackbase; /* :: ASLR randomized stack base */ 328 vaddr_t p_stackbase; /* :: ASLR randomized stack base */
329}; 329};
330 330
331#define p_rlimit p_limit->pl_rlimit 331#define p_rlimit p_limit->pl_rlimit
332#define p_session p_pgrp->pg_session 332#define p_session p_pgrp->pg_session
333#define p_pgid p_pgrp->pg_id 333#define p_pgid p_pgrp->pg_id
334 334
335/* 335/*
336 * Status values. 336 * Status values.
337 */ 337 */
338#define SIDL 1 /* Process being created by fork */ 338#define SIDL 1 /* Process being created by fork */
339#define SACTIVE 2 /* Process is not stopped */ 339#define SACTIVE 2 /* Process is not stopped */
340#define SDYING 3 /* About to die */ 340#define SDYING 3 /* About to die */
341#define SSTOP 4 /* Process debugging or suspension */ 341#define SSTOP 4 /* Process debugging or suspension */
342#define SZOMB 5 /* Awaiting collection by parent */ 342#define SZOMB 5 /* Awaiting collection by parent */
343#define SDEAD 6 /* Almost a zombie */ 343#define SDEAD 6 /* Almost a zombie */
344 344
345#define P_ZOMBIE(p) \ 345#define P_ZOMBIE(p) \
346 ((p)->p_stat == SZOMB || (p)->p_stat == SDYING || (p)->p_stat == SDEAD) 346 ((p)->p_stat == SZOMB || (p)->p_stat == SDYING || (p)->p_stat == SDEAD)
347 347
348/* 348/*
349 * These flags are kept in p_flag and are protected by p_lock. Access from 349 * These flags are kept in p_flag and are protected by p_lock. Access from
350 * process context only. 350 * process context only.
351 */ 351 */
352#define PK_ADVLOCK 0x00000001 /* Process may hold a POSIX advisory lock */ 352#define PK_ADVLOCK 0x00000001 /* Process may hold a POSIX advisory lock */
353#define PK_SYSTEM 0x00000002 /* System process (kthread) */ 353#define PK_SYSTEM 0x00000002 /* System process (kthread) */
354#define PK_SYSVSEM 0x00000004 /* Used SysV semaphores */ 354#define PK_SYSVSEM 0x00000004 /* Used SysV semaphores */
355#define PK_SUGID 0x00000100 /* Had set id privileges since last exec */ 355#define PK_SUGID 0x00000100 /* Had set id privileges since last exec */
356#define PK_EXEC 0x00004000 /* Process called exec */ 356#define PK_EXEC 0x00004000 /* Process called exec */
357#define PK_NOCLDWAIT 0x00020000 /* No zombies if child dies */ 357#define PK_NOCLDWAIT 0x00020000 /* No zombies if child dies */
358#define PK_32 0x00040000 /* 32-bit process (used on 64-bit kernels) */ 358#define PK_32 0x00040000 /* 32-bit process (used on 64-bit kernels) */
359#define PK_CLDSIGIGN 0x00080000 /* Process is ignoring SIGCHLD */ 359#define PK_CLDSIGIGN 0x00080000 /* Process is ignoring SIGCHLD */
360#define PK_MARKER 0x80000000 /* Is a dummy marker process */ 360#define PK_MARKER 0x80000000 /* Is a dummy marker process */
361 361
362/* 362/*
363 * These flags are kept in p_sflag and are protected by p_lock. Access from 363 * These flags are kept in p_sflag and are protected by p_lock. Access from
364 * process context only. 364 * process context only.
365 */ 365 */
366#define PS_NOCLDSTOP 0x00000008 /* No SIGCHLD when children stop */ 366#define PS_NOCLDSTOP 0x00000008 /* No SIGCHLD when children stop */
367#define PS_SA 0x00000400 /* Process using scheduler activations */ 367#define PS_SA 0x00000400 /* Process using scheduler activations */
368#define PS_WCORE 0x00001000 /* Process needs to dump core */ 368#define PS_WCORE 0x00001000 /* Process needs to dump core */
369#define PS_WEXIT 0x00002000 /* Working on exiting */ 369#define PS_WEXIT 0x00002000 /* Working on exiting */
370#define PS_STOPFORK 0x00800000 /* Child will be stopped on fork(2) */ 370#define PS_STOPFORK 0x00800000 /* Child will be stopped on fork(2) */
371#define PS_STOPEXEC 0x01000000 /* Will be stopped on exec(2) */ 371#define PS_STOPEXEC 0x01000000 /* Will be stopped on exec(2) */
372#define PS_STOPEXIT 0x02000000 /* Will be stopped at process exit */ 372#define PS_STOPEXIT 0x02000000 /* Will be stopped at process exit */
373#define PS_NOTIFYSTOP 0x10000000 /* Notify parent of successful STOP */ 373#define PS_NOTIFYSTOP 0x10000000 /* Notify parent of successful STOP */
374#define PS_NOSA 0x40000000 /* Do not enable SA */ 374#define PS_NOSA 0x40000000 /* Do not enable SA */
375#define PS_STOPPING 0x80000000 /* Transitioning SACTIVE -> SSTOP */ 375#define PS_STOPPING 0x80000000 /* Transitioning SACTIVE -> SSTOP */
376 376
377/* 377/*
378 * These flags are kept in p_sflag and are protected by the proc_lock 378 * These flags are kept in p_sflag and are protected by the proc_lock
379 * and p_lock. Access from process context only. 379 * and p_lock. Access from process context only.
380 */ 380 */
381#define PSL_TRACED 0x00000800 /* Debugged process being traced */ 381#define PSL_TRACED 0x00000800 /* Debugged process being traced */
382#define PSL_FSTRACE 0x00010000 /* Debugger process being traced by procfs */ 382#define PSL_FSTRACE 0x00010000 /* Debugger process being traced by procfs */
383#define PSL_CHTRACED 0x00400000 /* Child has been traced & reparented */ 383#define PSL_CHTRACED 0x00400000 /* Child has been traced & reparented */
384#define PSL_SYSCALL 0x04000000 /* process has PT_SYSCALL enabled */ 384#define PSL_SYSCALL 0x04000000 /* process has PT_SYSCALL enabled */
385 385
386/* 386/*
387 * Kept in p_stflag and protected by p_stmutex. 387 * Kept in p_stflag and protected by p_stmutex.
388 */ 388 */
389#define PST_PROFIL 0x00000020 /* Has started profiling */ 389#define PST_PROFIL 0x00000020 /* Has started profiling */
390 390
391/* 391/*
392 * The final set are protected by the proc_lock. Access 392 * The final set are protected by the proc_lock. Access
393 * from process context only. 393 * from process context only.
394 */ 394 */
395#define PL_CONTROLT 0x00000002 /* Has a controlling terminal */ 395#define PL_CONTROLT 0x00000002 /* Has a controlling terminal */
396#define PL_PPWAIT 0x00000010 /* Parent is waiting for child exec/exit */ 396#define PL_PPWAIT 0x00000010 /* Parent is waiting for child exec/exit */
397#define PL_SIGCOMPAT 0x00000200 /* Has used compat signal trampoline */ 397#define PL_SIGCOMPAT 0x00000200 /* Has used compat signal trampoline */
398#define PL_ORPHANPG 0x20000000 /* Member of an orphaned pgrp */ 398#define PL_ORPHANPG 0x20000000 /* Member of an orphaned pgrp */
399 399
400/* 400/*
401 * Macro to compute the exit signal to be delivered. 401 * Macro to compute the exit signal to be delivered.
402 */ 402 */
403#define P_EXITSIG(p) \ 403#define P_EXITSIG(p) \
404 (((p)->p_slflag & (PSL_TRACED|PSL_FSTRACE)) ? SIGCHLD : p->p_exitsig) 404 (((p)->p_slflag & (PSL_TRACED|PSL_FSTRACE)) ? SIGCHLD : p->p_exitsig)
405 405
406LIST_HEAD(proclist, proc); /* A list of processes */ 406LIST_HEAD(proclist, proc); /* A list of processes */
407 407
408/* 408/*
409 * This structure associates a proclist with its lock. 409 * This structure associates a proclist with its lock.
410 */ 410 */
411struct proclist_desc { 411struct proclist_desc {
412 struct proclist *pd_list; /* The list */ 412 struct proclist *pd_list; /* The list */
413 /* 413 /*
414 * XXX Add a pointer to the proclist's lock eventually. 414 * XXX Add a pointer to the proclist's lock eventually.
415 */ 415 */
416}; 416};
417 417
418#ifdef _KERNEL 418#ifdef _KERNEL
419#include <sys/mallocvar.h> 419#include <sys/mallocvar.h>
420MALLOC_DECLARE(M_EMULDATA); 420MALLOC_DECLARE(M_EMULDATA);
421MALLOC_DECLARE(M_SUBPROC); /* XXX - only used by sparc/sparc64 */ 421MALLOC_DECLARE(M_SUBPROC); /* XXX - only used by sparc/sparc64 */
422 422
423/* 423/*
424 * We use process IDs <= PID_MAX until there are > 16k processes. 424 * We use process IDs <= PID_MAX until there are > 16k processes.
425 * NO_PGID is used to represent "no process group" for a tty. 425 * NO_PGID is used to represent "no process group" for a tty.
426 */ 426 */
427#define PID_MAX 30000 427#define PID_MAX 30000
428#define NO_PGID ((pid_t)-1) 428#define NO_PGID ((pid_t)-1)
429 429
430#define SESS_LEADER(p) ((p)->p_session->s_leader == (p)) 430#define SESS_LEADER(p) ((p)->p_session->s_leader == (p))
431 431
432/* 432/*
433 * Flags passed to fork1(). 433 * Flags passed to fork1().
434 */ 434 */
435#define FORK_PPWAIT 0x0001 /* Block parent until child exit */ 435#define FORK_PPWAIT 0x0001 /* Block parent until child exit */
436#define FORK_SHAREVM 0x0002 /* Share vmspace with parent */ 436#define FORK_SHAREVM 0x0002 /* Share vmspace with parent */
437#define FORK_SHARECWD 0x0004 /* Share cdir/rdir/cmask */ 437#define FORK_SHARECWD 0x0004 /* Share cdir/rdir/cmask */
438#define FORK_SHAREFILES 0x0008 /* Share file descriptors */ 438#define FORK_SHAREFILES 0x0008 /* Share file descriptors */
439#define FORK_SHARESIGS 0x0010 /* Share signal actions */ 439#define FORK_SHARESIGS 0x0010 /* Share signal actions */
440#define FORK_NOWAIT 0x0020 /* Make init the parent of the child */ 440#define FORK_NOWAIT 0x0020 /* Make init the parent of the child */
441#define FORK_CLEANFILES 0x0040 /* Start with a clean descriptor set */ 441#define FORK_CLEANFILES 0x0040 /* Start with a clean descriptor set */
442#define FORK_SYSTEM 0x0080 /* Fork a kernel thread */ 442#define FORK_SYSTEM 0x0080 /* Fork a kernel thread */
443#define FORK_SHARELIMIT 0x0100 /* Share rlimit values */ 443#define FORK_SHARELIMIT 0x0100 /* Share rlimit values */
444 444
445extern struct proc proc0; /* Process slot for swapper */ 445extern struct proc proc0; /* Process slot for swapper */
446extern u_int nprocs; /* Current number of procs */ 446extern u_int nprocs; /* Current number of procs */
447extern int maxproc; /* Max number of procs */ 447extern int maxproc; /* Max number of procs */
448#define vmspace_kernel() (proc0.p_vmspace) 448#define vmspace_kernel() (proc0.p_vmspace)
449 449
450extern kmutex_t *proc_lock; 450extern kmutex_t *proc_lock;
451extern struct proclist allproc; /* List of all processes */ 451extern struct proclist allproc; /* List of all processes */
452extern struct proclist zombproc; /* List of zombie processes */ 452extern struct proclist zombproc; /* List of zombie processes */
453 453
454extern struct proc *initproc; /* Process slots for init, pager */ 454extern struct proc *initproc; /* Process slots for init, pager */
455 455
456extern const struct proclist_desc proclists[]; 456extern const struct proclist_desc proclists[];
457 457
458extern struct pool ptimer_pool; /* Memory pool for ptimers */ 458extern struct pool ptimer_pool; /* Memory pool for ptimers */
459 459
460struct proc *p_find(pid_t, uint); /* Find process by id */ 460struct proc *p_find(pid_t, uint); /* Find process by id */
461struct pgrp *pg_find(pid_t, uint); /* Find process group by id */ 461struct pgrp *pg_find(pid_t, uint); /* Find process group by id */
462/* Flags values for p_find() and pg_find(). */ 462/* Flags values for p_find() and pg_find(). */
463#define PFIND_ZOMBIE 1 /* look for zombies as well */ 463#define PFIND_ZOMBIE 1 /* look for zombies as well */
464#define PFIND_LOCKED 2 /* proclist locked on entry */ 464#define PFIND_LOCKED 2 /* proclist locked on entry */
465#define PFIND_UNLOCK_FAIL 4 /* unlock proclist on failure */ 465#define PFIND_UNLOCK_FAIL 4 /* unlock proclist on failure */
466#define PFIND_UNLOCK_OK 8 /* unlock proclist on success */ 466#define PFIND_UNLOCK_OK 8 /* unlock proclist on success */
467#define PFIND_UNLOCK (PFIND_UNLOCK_OK | PFIND_UNLOCK_FAIL) 467#define PFIND_UNLOCK (PFIND_UNLOCK_OK | PFIND_UNLOCK_FAIL)
468/* For source compatibility. but UNLOCK_OK gives a stale answer... */ 468/* For source compatibility. but UNLOCK_OK gives a stale answer... */
469#define pfind(pid) p_find((pid), PFIND_UNLOCK) 469#define pfind(pid) p_find((pid), PFIND_UNLOCK)
470#define pgfind(pgid) pg_find((pgid), PFIND_UNLOCK) 470#define pgfind(pgid) pg_find((pgid), PFIND_UNLOCK)
471 471
472struct simplelock; 472struct simplelock;
473 473
474void procinit(void); 474void procinit(void);
475int proc_enterpgrp(struct proc *, pid_t, pid_t, bool); 475int proc_enterpgrp(struct proc *, pid_t, pid_t, bool);
476void proc_leavepgrp(struct proc *); 476void proc_leavepgrp(struct proc *);
477void proc_sesshold(struct session *); 477void proc_sesshold(struct session *);
478void proc_sessrele(struct session *); 478void proc_sessrele(struct session *);
479void fixjobc(struct proc *, struct pgrp *, int); 479void fixjobc(struct proc *, struct pgrp *, int);
480 480
481int ltsleep(wchan_t, pri_t, const char *, int, volatile struct simplelock *); 481int ltsleep(wchan_t, pri_t, const char *, int, volatile struct simplelock *);
482int mtsleep(wchan_t, pri_t, const char *, int, kmutex_t *); 482int mtsleep(wchan_t, pri_t, const char *, int, kmutex_t *);
483void wakeup(wchan_t); 483void wakeup(wchan_t);
484void wakeup_one(wchan_t); 484void wakeup_one(wchan_t);
485int kpause(const char *, bool, int, kmutex_t *); 485int kpause(const char *, bool, int, kmutex_t *);
486void exit1(struct lwp *, int) __dead; 486void exit1(struct lwp *, int) __dead;
487int do_sys_wait(struct lwp *, int *, int *, int, struct rusage *, int *); 487int do_sys_wait(struct lwp *, int *, int *, int, struct rusage *, int *);
488struct proc *proc_alloc(void); 488struct proc *proc_alloc(void);
489void proc0_init(void); 489void proc0_init(void);
490void proc_free_pid(struct proc *); 490void proc_free_pid(struct proc *);
491void proc_free_mem(struct proc *); 491void proc_free_mem(struct proc *);
492void exit_lwps(struct lwp *l); 492void exit_lwps(struct lwp *l);
493int fork1(struct lwp *, int, int, void *, size_t, 493int fork1(struct lwp *, int, int, void *, size_t,
494 void (*)(void *), void *, register_t *, struct proc **); 494 void (*)(void *), void *, register_t *, struct proc **);
495int pgid_in_session(struct proc *, pid_t); 495int pgid_in_session(struct proc *, pid_t);
496void cpu_lwp_fork(struct lwp *, struct lwp *, void *, size_t, 496void cpu_lwp_fork(struct lwp *, struct lwp *, void *, size_t,
497 void (*)(void *), void *); 497 void (*)(void *), void *);
498#ifndef cpu_lwp_free 498#ifndef cpu_lwp_free
499void cpu_lwp_free(struct lwp *, int); 499void cpu_lwp_free(struct lwp *, int);
500#ifndef cpu_lwp_free2 500#ifndef cpu_lwp_free2
501void cpu_lwp_free2(struct lwp *); 501void cpu_lwp_free2(struct lwp *);
502#endif 502#endif
503#endif 503#endif
504 504
505#ifdef __HAVE_SYSCALL_INTERN 505#ifdef __HAVE_SYSCALL_INTERN
506void syscall_intern(struct proc *); 506void syscall_intern(struct proc *);
507#endif 507#endif
508 508
509void child_return(void *); 509void child_return(void *);
510 510
511int proc_isunder(struct proc *, struct lwp *); 511int proc_isunder(struct proc *, struct lwp *);
512void proc_stop(struct proc *, int, int); 512void proc_stop(struct proc *, int, int);
513 513
514int proc_vmspace_getref(struct proc *, struct vmspace **); 514int proc_vmspace_getref(struct proc *, struct vmspace **);
515void proc_crmod_leave(kauth_cred_t, kauth_cred_t, bool); 515void proc_crmod_leave(kauth_cred_t, kauth_cred_t, bool);
516void proc_crmod_enter(void); 516void proc_crmod_enter(void);
517 517
518int proc_specific_key_create(specificdata_key_t *, specificdata_dtor_t); 518int proc_specific_key_create(specificdata_key_t *, specificdata_dtor_t);
519void proc_specific_key_delete(specificdata_key_t); 519void proc_specific_key_delete(specificdata_key_t);
520void proc_initspecific(struct proc *); 520void proc_initspecific(struct proc *);
521void proc_finispecific(struct proc *); 521void proc_finispecific(struct proc *);
522void * proc_getspecific(struct proc *, specificdata_key_t); 522void * proc_getspecific(struct proc *, specificdata_key_t);
523void proc_setspecific(struct proc *, specificdata_key_t, void *); 523void proc_setspecific(struct proc *, specificdata_key_t, void *);
524 524
525int proclist_foreach_call(struct proclist *, 525int proclist_foreach_call(struct proclist *,
526 int (*)(struct proc *, void *arg), void *); 526 int (*)(struct proc *, void *arg), void *);
527 527
528static inline struct proc * 528static inline struct proc *
529_proclist_skipmarker(struct proc *p0) 529_proclist_skipmarker(struct proc *p0)
530{ 530{
531 struct proc *p = p0; 531 struct proc *p = p0;
532 532
533 while (p != NULL && p->p_flag & PK_MARKER) 533 while (p != NULL && p->p_flag & PK_MARKER)
534 p = LIST_NEXT(p, p_list); 534 p = LIST_NEXT(p, p_list);
535 535
536 return p; 536 return p;
537} 537}
538#define PROCLIST_FOREACH(var, head) \ 538#define PROCLIST_FOREACH(var, head) \
539 for ((var) = LIST_FIRST(head); \ 539 for ((var) = LIST_FIRST(head); \
540 ((var) = _proclist_skipmarker(var)) != NULL; \ 540 ((var) = _proclist_skipmarker(var)) != NULL; \
541 (var) = LIST_NEXT(var, p_list)) 541 (var) = LIST_NEXT(var, p_list))
542 542
543/* Compatibility with old, non-interlocked tsleep call */ 543/* Compatibility with old, non-interlocked tsleep call */
544#define tsleep(chan, pri, wmesg, timo) \ 544#define tsleep(chan, pri, wmesg, timo) \
545 ltsleep(chan, pri, wmesg, timo, NULL) 545 ltsleep(chan, pri, wmesg, timo, NULL)
546 546
547#ifdef KSTACK_CHECK_MAGIC 547#ifdef KSTACK_CHECK_MAGIC
548void kstack_setup_magic(const struct lwp *); 548void kstack_setup_magic(const struct lwp *);
549void kstack_check_magic(const struct lwp *); 549void kstack_check_magic(const struct lwp *);
550#else 550#else
551#define kstack_setup_magic(x) 551#define kstack_setup_magic(x)
552#define kstack_check_magic(x) 552#define kstack_check_magic(x)
553#endif 553#endif
554 554
555/* 555/*
556 * kernel stack paramaters 556 * kernel stack paramaters
557 * XXX require sizeof(struct user) 557 * XXX require sizeof(struct user)
558 */ 558 */
559/* the lowest address of kernel stack */ 559/*
 560 * KSTACK_LOWEST_ADDR: return the lowest address of the lwp's kernel stack,
 561 * excluding redzone etc.
 562 *
 563 * if <machine/proc.h> provides the MD definition, it will be used.
 564 */
560#ifndef KSTACK_LOWEST_ADDR 565#ifndef KSTACK_LOWEST_ADDR
561#define KSTACK_LOWEST_ADDR(l) ((void *)ALIGN((l)->l_addr + 1)) 566#define KSTACK_LOWEST_ADDR(l) ((void *)ALIGN((l)->l_addr + 1))
562#endif 567#endif
563/* size of kernel stack */ 568/*
 569 * KSTACK_SIZE: the size kernel stack for a lwp, excluding redzone etc.
 570 *
 571 * if <machine/proc.h> provides the MD definition, it will be used.
 572 */
564#ifndef KSTACK_SIZE 573#ifndef KSTACK_SIZE
565#define KSTACK_SIZE (USPACE - ALIGN(sizeof(struct user))) 574#define KSTACK_SIZE (USPACE - ALIGN(sizeof(struct user)))
566#endif 575#endif
567 576
568extern struct emul emul_netbsd; 577extern struct emul emul_netbsd;
569 578
570#endif /* _KERNEL */ 579#endif /* _KERNEL */
571#endif /* !_SYS_PROC_H_ */ 580#endif /* !_SYS_PROC_H_ */