Remove the old system perl binary when performing 'make upgrade'.
[dragonfly.git] / sys / sys / systm.h
CommitLineData
984263bc
MD
1/*-
2 * Copyright (c) 1982, 1988, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)systm.h 8.7 (Berkeley) 3/29/95
39 * $FreeBSD: src/sys/sys/systm.h,v 1.111.2.18 2002/12/17 18:04:02 sam Exp $
d9f3f6fa 40 * $DragonFly: src/sys/sys/systm.h,v 1.25 2004/12/30 07:01:52 cpressey Exp $
984263bc
MD
41 */
42
43#ifndef _SYS_SYSTM_H_
44#define _SYS_SYSTM_H_
45
d9f3f6fa
CP
46#ifndef _KERNEL
47#error "This file should not be included by userland programs."
48#endif
49
e2565a42
MD
50#ifndef _MACHINE_TYPES_H_
51#include <machine/types.h>
52#endif
53#ifndef _MACHINE_STDARG_H_
54#include <machine/stdarg.h>
55#endif
984263bc
MD
56#include <machine/atomic.h>
57#include <machine/cpufunc.h>
58#include <sys/callout.h>
59
60extern int securelevel; /* system security level (see init(8)) */
61
62extern int cold; /* nonzero if we are doing a cold boot */
63extern const char *panicstr; /* panic message */
64extern int dumping; /* system is dumping */
65extern int safepri; /* safe ipl when cold or panicing */
66extern char version[]; /* system version */
67extern char copyright[]; /* system copyright */
68
69extern int nswap; /* size of swap space */
70
71extern int selwait; /* select timeout address */
72
73extern u_char curpriority; /* priority of current process */
74
75extern int physmem; /* physical memory */
76
77extern dev_t dumpdev; /* dump device */
78extern long dumplo; /* offset into dumpdev */
79
80extern dev_t rootdev; /* root device */
81extern dev_t rootdevs[2]; /* possible root devices */
82extern char *rootdevnames[2]; /* names of possible root devices */
984263bc
MD
83
84extern int boothowto; /* reboot flags, from console subsystem */
85extern int bootverbose; /* nonzero to print verbose messages */
86
87extern int maxusers; /* system tune hint */
88
17a9f566 89extern int ncpus; /* total number of cpus (real, hyper, virtual)*/
90100055
JH
90extern int ncpus2; /* ncpus rounded down to power of 2 */
91extern int ncpus2_shift; /* log base 2 of ncpus2 */
92extern int ncpus2_mask; /* ncpus2 - 1 */
da3639ef 93extern int clocks_running; /* timing/timeout subsystem is operational */
17a9f566 94
984263bc
MD
95#ifdef INVARIANTS /* The option is always available */
96#define KASSERT(exp,msg) do { if (!(exp)) panic msg; } while (0)
6b08710e 97#define KKASSERT(exp) if (!(exp)) panic("assertion: " #exp " in %s", __FUNCTION__)
984263bc
MD
98#define SPLASSERT(level, msg) __CONCAT(__CONCAT(spl,level),assert)(msg)
99#define CONDSPLASSERT(cond, level, msg) do { \
100 if (cond) \
101 SPLASSERT(level, msg); \
102} while (0)
103#else
104#define KASSERT(exp,msg)
41c20dac 105#define KKASSERT(exp)
984263bc
MD
106#define SPLASSERT(level, msg)
107#define CONDSPLASSERT(cond, level, msg)
108#endif
109
832f5800
JS
110#define CTASSERT(x) _CTASSERT(x, __LINE__)
111#define _CTASSERT(x, y) __CTASSERT(x, y)
112#define __CTASSERT(x, y) typedef char __assert ## y[(x) ? 1 : -1]
113
984263bc
MD
114/*
115 * General function declarations.
116 */
117
88c4d2f6 118struct intrframe;
984263bc
MD
119struct malloc_type;
120struct proc;
f1d1c3fa 121struct xwait;
984263bc
MD
122struct timeval;
123struct tty;
124struct uio;
8ad65e08 125struct globaldata;
41c20dac 126struct thread;
984263bc 127
b153f746 128void Debugger (const char *msg);
801f17b9 129void backtrace(void);
b153f746
RG
130void mi_gdinit (struct globaldata *gd, int cpu);
131int dumpstatus (vm_offset_t addr, off_t count);
132int nullop (void);
133int eopnotsupp (void);
134int einval (void);
135int seltrue (dev_t dev, int which, struct thread *td);
136int ureadc (int, struct uio *);
137void *hashinit (int count, struct malloc_type *type, u_long *hashmask);
138void *phashinit (int count, struct malloc_type *type, u_long *nentries);
139
140void cpu_boot (int);
141void cpu_rootconf (void);
984263bc
MD
142extern uint32_t crc32_tab[];
143uint32_t crc32(const void *buf, size_t size);
b153f746
RG
144void init_param1 (void);
145void init_param2 (int physpages);
146void tablefull (const char *);
147int addlog (const char *, ...) __printflike(1, 2);
148int kvprintf (char const *, void (*)(int, void*), void *, int,
e2565a42 149 __va_list) __printflike(1, 0);
b153f746
RG
150int log (int, const char *, ...) __printflike(2, 3);
151void logwakeup (void);
152void log_console (struct uio *);
153int printf (const char *, ...) __printflike(1, 2);
154int snprintf (char *, size_t, const char *, ...) __printflike(3, 4);
155int sprintf (char *buf, const char *, ...) __printflike(2, 3);
156int uprintf (const char *, ...) __printflike(1, 2);
e2565a42
MD
157int vprintf (const char *, __va_list) __printflike(1, 0);
158int vsnprintf (char *, size_t, const char *, __va_list) __printflike(3, 0);
159int vsprintf (char *buf, const char *, __va_list) __printflike(2, 0);
b153f746
RG
160int ttyprintf (struct tty *, const char *, ...) __printflike(2, 3);
161int sscanf (const char *, char const *, ...);
e2565a42 162int vsscanf (const char *, char const *, __va_list);
b153f746
RG
163long strtol (const char *, char **, int);
164u_long strtoul (const char *, char **, int);
165quad_t strtoq (const char *, char **, int);
166u_quad_t strtouq (const char *, char **, int);
984263bc 167
f15db79e
MD
168/*
169 * note: some functions commonly used by device drivers may be passed
170 * pointers to volatile storage, volatile set to avoid warnings.
171 */
b153f746
RG
172void bcopy (volatile const void *from, volatile void *to, size_t len);
173void ovbcopy (const void *from, void *to, size_t len);
984263bc
MD
174
175#ifdef __i386__
b153f746 176extern void (*bzero) (volatile void *buf, size_t len);
984263bc 177#else
b153f746 178void bzero (void *buf, size_t len);
984263bc
MD
179#endif
180
b153f746 181void *memcpy (void *to, const void *from, size_t len);
984263bc 182
b153f746
RG
183int copystr (const void *kfaddr, void *kdaddr, size_t len,
184 size_t *lencopied);
185int copyinstr (const void *udaddr, void *kaddr, size_t len,
186 size_t *lencopied);
187int copyin (const void *udaddr, void *kaddr, size_t len);
188int copyout (const void *kaddr, void *udaddr, size_t len);
984263bc 189
b153f746
RG
190int fubyte (const void *base);
191int subyte (void *base, int byte);
192int suibyte (void *base, int byte);
193long fuword (const void *base);
194int suword (void *base, long word);
195int fusword (void *base);
196int susword (void *base, int word);
984263bc 197
b153f746 198void realitexpire (void *);
f0f0df1c 199void DELAY(int usec);
984263bc 200
b153f746
RG
201void startprofclock (struct proc *);
202void stopprofclock (struct proc *);
203void setstatclockrate (int hzrate);
984263bc 204
b153f746 205char *getenv (const char *name);
984263bc 206#define testenv getenv
6c6180e0 207#define freeenv(p)
b153f746
RG
208int getenv_int (const char *name, int *data);
209int getenv_string (const char *name, char *data, int size);
210int getenv_quad (const char *name, quad_t *data);
984263bc
MD
211extern char *kern_envp;
212
213#ifdef APM_FIXUP_CALLTODO
b153f746 214void adjust_timeout_calltodo (struct timeval *time_change);
984263bc
MD
215#endif /* APM_FIXUP_CALLTODO */
216
217#include <sys/libkern.h>
218
219/* Initialize the world */
b153f746
RG
220void consinit (void);
221void cpu_initclocks (void);
222void nchinit (void);
223void usrinfoinit (void);
984263bc
MD
224
225/* Finalize the world. */
b153f746 226void shutdown_nice (int);
984263bc
MD
227
228/*
229 * Kernel to clock driver interface.
230 */
b153f746
RG
231void inittodr (time_t base);
232void resettodr (void);
233void startrtclock (void);
984263bc
MD
234
235/* Timeouts */
b153f746 236typedef void timeout_t (void *); /* timeout function type */
984263bc
MD
237#define CALLOUT_HANDLE_INITIALIZER(handle) \
238 { NULL }
239
7eb3b2ae
MD
240#if 0
241/* OBSOLETE INTERFACE */
b153f746
RG
242void callout_handle_init (struct callout_handle *);
243struct callout_handle timeout (timeout_t *, void *, int);
244void untimeout (timeout_t *, void *, struct callout_handle);
7eb3b2ae 245#endif
984263bc
MD
246
247/* Interrupt management */
248
249/*
250 * For the alpha arch, some of these functions are static __inline, and
251 * the others should be.
252 */
253#ifdef __i386__
b153f746
RG
254void setdelayed (void);
255void setsoftast (void);
256void setsoftcambio (void);
257void setsoftcamnet (void);
258void setsoftclock (void);
259void setsoftcrypto (void);
260void setsoftnet (void);
261void setsofttty (void);
262void setsoftvm (void);
263void setsofttq (void);
264void schedsoftcamnet (void);
265void schedsoftcambio (void);
266void schedsoftnet (void);
267void schedsofttty (void);
268void schedsoftvm (void);
269void schedsofttq (void);
270intrmask_t softclockpending (void);
271void spl0 (void);
272intrmask_t splbio (void);
273intrmask_t splcam (void);
274intrmask_t splclock (void);
275intrmask_t splcrypto (void);
276intrmask_t splhigh (void);
277intrmask_t splimp (void);
278intrmask_t splnet (void);
279intrmask_t splsoftcam (void);
280intrmask_t splsoftcambio (void);
281intrmask_t splsoftcamnet (void);
282intrmask_t splsoftclock (void);
283intrmask_t splsofttty (void);
284intrmask_t splsoftvm (void);
285intrmask_t splsofttq (void);
286intrmask_t splstatclock (void);
287intrmask_t spltty (void);
288intrmask_t splvm (void);
289void splx (intrmask_t ipl);
290void splz (void);
984263bc
MD
291#endif /* __i386__ */
292
293#ifdef __alpha__
294#include <machine/ipl.h>
295#endif
296
297#ifdef INVARIANT_SUPPORT
b153f746
RG
298void splbioassert (const char *msg);
299void splcamassert (const char *msg);
300void splclockassert (const char *msg);
301void splcryptoassert (const char *msg);
302void splhighassert (const char *msg);
303void splimpassert (const char *msg);
304void splnetassert (const char *msg);
305void splsoftcamassert (const char *msg);
306void splsoftcambioassert (const char *msg);
307void splsoftcamnetassert (const char *msg);
308void splsoftclockassert (const char *msg);
309void splsoftttyassert (const char *msg);
310void splsoftvmassert (const char *msg);
311void splsofttqassert (const char *msg);
312void splstatclockassert (const char *msg);
313void splttyassert (const char *msg);
314void splvmassert (const char *msg);
984263bc
MD
315#endif /* INVARIANT_SUPPORT */
316
317/*
318 * XXX It's not clear how "machine independent" these will be yet, but
319 * they are used all over the place especially in pci drivers. We would
320 * have to modify lots of drivers since <machine/cpufunc.h> no longer
321 * implicitly causes these to be defined when it #included <machine/spl.h>
322 */
323extern intrmask_t bio_imask; /* group of interrupts masked with splbio() */
324extern intrmask_t cam_imask; /* group of interrupts masked with splcam() */
325extern intrmask_t net_imask; /* group of interrupts masked with splimp() */
326extern intrmask_t stat_imask; /* interrupts masked with splstatclock() */
327extern intrmask_t tty_imask; /* group of interrupts masked with spltty() */
328
329/* Read only */
330extern const intrmask_t soft_imask; /* interrupts masked with splsoft*() */
331extern const intrmask_t softnet_imask; /* interrupt masked with splnet() */
332extern const intrmask_t softtty_imask; /* interrupt masked with splsofttty() */
333
334/*
335 * Various callout lists.
336 */
337
338/* Exit callout list declarations. */
b153f746 339typedef void (*exitlist_fn) (struct thread *td);
984263bc 340
b153f746
RG
341int at_exit (exitlist_fn function);
342int rm_at_exit (exitlist_fn function);
984263bc
MD
343
344/* Fork callout list declarations. */
b153f746
RG
345typedef void (*forklist_fn) (struct proc *parent, struct proc *child,
346 int flags);
984263bc 347
b153f746
RG
348int at_fork (forklist_fn function);
349int rm_at_fork (forklist_fn function);
984263bc
MD
350
351/*
352 * Not exactly a callout LIST, but a callout entry.
353 * Allow an external module to define a hardware watchdog tickler.
354 * Normally a process would do this, but there are times when the
355 * kernel needs to be able to hold off the watchdog, when the process
356 * is not active, e.g., when dumping core.
357 */
b153f746 358typedef void (*watchdog_tickle_fn) (void);
984263bc
MD
359
360extern watchdog_tickle_fn wdog_tickler;
361
362/*
363 * Common `proc' functions are declared here so that proc.h can be included
364 * less often.
365 */
b153f746
RG
366int tsleep (void *chan, int slpflags, const char *wmesg, int timo);
367void wakeup (void *chan);
368void wakeup_one (void *chan);
984263bc
MD
369
370/*
371 * Common `dev_t' stuff are declared here to avoid #include poisoning
372 */
373
374int major(dev_t x);
375int minor(dev_t x);
984263bc
MD
376udev_t dev2udev(dev_t x);
377dev_t udev2dev(udev_t x, int b);
378int uminor(udev_t dev);
379int umajor(udev_t dev);
380udev_t makeudev(int x, int y);
381#endif /* !_SYS_SYSTM_H_ */