342 lines
12 KiB
C
342 lines
12 KiB
C
/*-
|
|
* Copyright (c) 1982, 1988, 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
* (c) UNIX System Laboratories, Inc.
|
|
* All or some portions of this file are derived from material licensed
|
|
* to the University of California by American Telephone and Telegraph
|
|
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
|
|
* the permission of UNIX System Laboratories, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)systm.h 8.7 (Berkeley) 3/29/95
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _SYS_SYSTM_H_
|
|
#define _SYS_SYSTM_H_
|
|
|
|
#include <machine/atomic.h>
|
|
#include <machine/cpufunc.h>
|
|
#include <sys/callout.h>
|
|
#include <sys/queue.h>
|
|
|
|
extern int securelevel; /* system security level (see init(8)) */
|
|
extern int suser_enabled; /* suser() is permitted to return 0 */
|
|
|
|
extern int cold; /* nonzero if we are doing a cold boot */
|
|
extern const char *panicstr; /* panic message */
|
|
extern char version[]; /* system version */
|
|
extern char copyright[]; /* system copyright */
|
|
extern int kstack_pages; /* number of kernel stack pages */
|
|
extern int uarea_pages; /* number of user struct pages */
|
|
|
|
extern int nswap; /* size of swap space */
|
|
|
|
extern u_int nselcoll; /* select collisions since boot */
|
|
extern struct mtx sellock; /* select lock variable */
|
|
extern struct cv selwait; /* select conditional variable */
|
|
|
|
extern long physmem; /* physical memory */
|
|
|
|
extern dev_t rootdev; /* root device */
|
|
extern dev_t rootdevs[2]; /* possible root devices */
|
|
extern char *rootdevnames[2]; /* names of possible root devices */
|
|
extern struct vnode *rootvp; /* vnode equivalent to above */
|
|
|
|
extern int boothowto; /* reboot flags, from console subsystem */
|
|
extern int bootverbose; /* nonzero to print verbose messages */
|
|
|
|
extern int maxusers; /* system tune hint */
|
|
|
|
#ifdef INVARIANTS /* The option is always available */
|
|
#define KASSERT(exp,msg) do { if (!(exp)) panic msg; } while (0)
|
|
#else
|
|
#define KASSERT(exp,msg)
|
|
#endif
|
|
|
|
#ifndef CTASSERT /* Allow lint to override */
|
|
#define CTASSERT(x) _CTASSERT(x, __LINE__)
|
|
#define _CTASSERT(x, y) __CTASSERT(x, y)
|
|
#define __CTASSERT(x, y) typedef char __assert ## y[(x) ? 1 : -1]
|
|
#endif
|
|
|
|
/*
|
|
* XXX the hints declarations are even more misplaced than most declarations
|
|
* in this file, since they are needed in one file (per arch) and only used
|
|
* in two files.
|
|
* XXX most of these variables should be const.
|
|
*/
|
|
extern int envmode;
|
|
extern int hintmode; /* 0 = off. 1 = config, 2 = fallback */
|
|
extern int dynamic_kenv;
|
|
extern struct sx kenv_lock;
|
|
extern char *kern_envp;
|
|
extern char static_env[];
|
|
extern char static_hints[]; /* by config for now */
|
|
|
|
extern char **kenvp;
|
|
|
|
/*
|
|
* General function declarations.
|
|
*/
|
|
|
|
struct clockframe;
|
|
struct malloc_type;
|
|
struct mtx;
|
|
struct proc;
|
|
struct kse;
|
|
struct socket;
|
|
struct thread;
|
|
struct tty;
|
|
struct ucred;
|
|
struct uio;
|
|
struct _jmp_buf;
|
|
|
|
int setjmp(struct _jmp_buf *);
|
|
void longjmp(struct _jmp_buf *, int) __dead2;
|
|
void Debugger(const char *msg);
|
|
int dumpstatus(vm_offset_t addr, off_t count);
|
|
int nullop(void);
|
|
int eopnotsupp(void);
|
|
int seltrue(dev_t dev, int which, struct thread *td);
|
|
int ureadc(int, struct uio *);
|
|
void hashdestroy(void *, struct malloc_type *, u_long);
|
|
void *hashinit(int count, struct malloc_type *type, u_long *hashmask);
|
|
void *phashinit(int count, struct malloc_type *type, u_long *nentries);
|
|
|
|
#ifdef RESTARTABLE_PANICS
|
|
void panic(const char *, ...) __printflike(1, 2);
|
|
#else
|
|
void panic(const char *, ...) __dead2 __printflike(1, 2);
|
|
#endif
|
|
|
|
void backtrace(void);
|
|
void cpu_boot(int);
|
|
void cpu_rootconf(void);
|
|
extern uint32_t crc32_tab[];
|
|
uint32_t crc32(const void *buf, size_t size);
|
|
void critical_enter(void);
|
|
void critical_exit(void);
|
|
void init_param1(void);
|
|
void init_param2(long physpages);
|
|
void tablefull(const char *);
|
|
int kvprintf(char const *, void (*)(int, void*), void *, int,
|
|
__va_list) __printflike(1, 0);
|
|
void log(int, const char *, ...) __printflike(2, 3);
|
|
void log_console(struct uio *);
|
|
int printf(const char *, ...) __printflike(1, 2);
|
|
int snprintf(char *, size_t, const char *, ...) __printflike(3, 4);
|
|
int sprintf(char *buf, const char *, ...) __printflike(2, 3);
|
|
int uprintf(const char *, ...) __printflike(1, 2);
|
|
int vprintf(const char *, __va_list) __printflike(1, 0);
|
|
int vsnprintf(char *, size_t, const char *, __va_list) __printflike(3, 0);
|
|
int vsnrprintf(char *, size_t, int, const char *, __va_list) __printflike(4, 0);
|
|
int vsprintf(char *buf, const char *, __va_list) __printflike(2, 0);
|
|
int ttyprintf(struct tty *, const char *, ...) __printflike(2, 3);
|
|
int sscanf(const char *, char const *, ...);
|
|
int vsscanf(const char *, char const *, __va_list);
|
|
long strtol(const char *, char **, int);
|
|
u_long strtoul(const char *, char **, int);
|
|
quad_t strtoq(const char *, char **, int);
|
|
u_quad_t strtouq(const char *, char **, int);
|
|
void tprintf(struct proc *p, int pri, const char *, ...) __printflike(3, 4);
|
|
|
|
void bcopy(const void *from, void *to, size_t len);
|
|
void ovbcopy(const void *from, void *to, size_t len);
|
|
|
|
#ifdef __i386__
|
|
extern void (*bzero)(void *buf, size_t len);
|
|
#else
|
|
void bzero(void *buf, size_t len);
|
|
#endif
|
|
|
|
void *memcpy(void *to, const void *from, size_t len);
|
|
|
|
int copystr(const void *kfaddr, void *kdaddr, size_t len,
|
|
size_t *lencopied);
|
|
int copyinstr(const void *udaddr, void *kaddr, size_t len,
|
|
size_t *lencopied);
|
|
int copyin(const void *udaddr, void *kaddr, size_t len);
|
|
int copyout(const void *kaddr, void *udaddr, size_t len);
|
|
|
|
int fubyte(const void *base);
|
|
long fuword(const void *base);
|
|
int fuword16(void *base);
|
|
int32_t fuword32(const void *base);
|
|
int64_t fuword64(const void *base);
|
|
int subyte(void *base, int byte);
|
|
int suword(void *base, long word);
|
|
int suword16(void *base, int word);
|
|
int suword32(void *base, int32_t word);
|
|
int suword64(void *base, int64_t word);
|
|
|
|
void realitexpire(void *);
|
|
|
|
void hardclock(struct clockframe *frame);
|
|
void hardclock_process(struct clockframe *frame);
|
|
void softclock(void *);
|
|
void statclock(struct clockframe *frame);
|
|
void profclock(struct clockframe *frame);
|
|
|
|
void startprofclock(struct proc *);
|
|
void stopprofclock(struct proc *);
|
|
void cpu_startprofclock(void);
|
|
void cpu_stopprofclock(void);
|
|
|
|
/* flags for suser() and suser_cred() */
|
|
#define PRISON_ROOT 1
|
|
|
|
int suser(struct thread *td);
|
|
int suser_cred(struct ucred *cred, int flag);
|
|
int cr_cansee(struct ucred *u1, struct ucred *u2);
|
|
int cr_canseesocket(struct ucred *cred, struct socket *so);
|
|
|
|
char *getenv(const char *name);
|
|
void freeenv(char *env);
|
|
int getenv_int(const char *name, int *data);
|
|
int getenv_string(const char *name, char *data, int size);
|
|
int getenv_quad(const char *name, quad_t *data);
|
|
int setenv(const char *name, const char *value);
|
|
int unsetenv(const char *name);
|
|
int testenv(const char *name);
|
|
|
|
#ifdef APM_FIXUP_CALLTODO
|
|
struct timeval;
|
|
void adjust_timeout_calltodo(struct timeval *time_change);
|
|
#endif /* APM_FIXUP_CALLTODO */
|
|
|
|
#include <sys/libkern.h>
|
|
|
|
/* Initialize the world */
|
|
void consinit(void);
|
|
void cpu_initclocks(void);
|
|
void usrinfoinit(void);
|
|
|
|
/* Finalize the world. */
|
|
void shutdown_nice(int);
|
|
|
|
/*
|
|
* Kernel to clock driver interface.
|
|
*/
|
|
void inittodr(time_t base);
|
|
void resettodr(void);
|
|
void startrtclock(void);
|
|
|
|
/* Timeouts */
|
|
typedef void timeout_t(void *); /* timeout function type */
|
|
#define CALLOUT_HANDLE_INITIALIZER(handle) \
|
|
{ NULL }
|
|
|
|
void callout_handle_init(struct callout_handle *);
|
|
struct callout_handle timeout(timeout_t *, void *, int);
|
|
void untimeout(timeout_t *, void *, struct callout_handle);
|
|
caddr_t kern_timeout_callwheel_alloc(caddr_t v);
|
|
void kern_timeout_callwheel_init(void);
|
|
|
|
/* Stubs for obsolete functions that used to be for interrupt management */
|
|
static __inline void spl0(void) { return; }
|
|
static __inline intrmask_t splbio(void) { return 0; }
|
|
static __inline intrmask_t splcam(void) { return 0; }
|
|
static __inline intrmask_t splclock(void) { return 0; }
|
|
static __inline intrmask_t splhigh(void) { return 0; }
|
|
static __inline intrmask_t splimp(void) { return 0; }
|
|
static __inline intrmask_t splnet(void) { return 0; }
|
|
static __inline intrmask_t splsoftcam(void) { return 0; }
|
|
static __inline intrmask_t splsoftclock(void) { return 0; }
|
|
static __inline intrmask_t splsofttty(void) { return 0; }
|
|
static __inline intrmask_t splsoftvm(void) { return 0; }
|
|
static __inline intrmask_t splsofttq(void) { return 0; }
|
|
static __inline intrmask_t splstatclock(void) { return 0; }
|
|
static __inline intrmask_t spltty(void) { return 0; }
|
|
static __inline intrmask_t splvm(void) { return 0; }
|
|
static __inline void splx(intrmask_t ipl __unused) { return; }
|
|
|
|
/*
|
|
* Various callout lists.
|
|
*/
|
|
|
|
/* Exit callout list declarations. */
|
|
typedef void (*exitlist_fn)(struct proc *procp);
|
|
|
|
int at_exit(exitlist_fn function);
|
|
int rm_at_exit(exitlist_fn function);
|
|
|
|
/* Fork callout list declarations. */
|
|
typedef void (*forklist_fn)(struct proc *parent, struct proc *child, int flags);
|
|
|
|
int at_fork(forklist_fn function);
|
|
int rm_at_fork(forklist_fn function);
|
|
|
|
/* Exec callout list declarations. */
|
|
typedef void (*execlist_fn)(struct proc *procp);
|
|
|
|
int at_exec(execlist_fn function);
|
|
int rm_at_exec(execlist_fn function);
|
|
|
|
/*
|
|
* Not exactly a callout LIST, but a callout entry.
|
|
* Allow an external module to define a hardware watchdog tickler.
|
|
* Normally a process would do this, but there are times when the
|
|
* kernel needs to be able to hold off the watchdog, when the process
|
|
* is not active, e.g., when dumping core.
|
|
*/
|
|
typedef void (*watchdog_tickle_fn)(void);
|
|
|
|
extern watchdog_tickle_fn wdog_tickler;
|
|
|
|
/*
|
|
* Common `proc' functions are declared here so that proc.h can be included
|
|
* less often.
|
|
*/
|
|
int msleep(void *chan, struct mtx *mtx, int pri, const char *wmesg,
|
|
int timo);
|
|
void abortsleep(struct thread *td);
|
|
#define tsleep(chan, pri, wmesg, timo) msleep(chan, NULL, pri, wmesg, timo)
|
|
void wakeup(void *chan);
|
|
void wakeup_one(void *chan);
|
|
|
|
/*
|
|
* Common `dev_t' stuff are declared here to avoid #include poisoning
|
|
*/
|
|
|
|
int major(dev_t x);
|
|
int minor(dev_t x);
|
|
dev_t makedev(int x, int y);
|
|
udev_t dev2udev(dev_t x);
|
|
dev_t udev2dev(udev_t x, int b);
|
|
int uminor(udev_t dev);
|
|
int umajor(udev_t dev);
|
|
udev_t makeudev(int x, int y);
|
|
|
|
/* XXX: Should be void nanodelay(u_int nsec); */
|
|
void DELAY(int usec);
|
|
|
|
#endif /* !_SYS_SYSTM_H_ */
|