Commit | Line | Data |
---|---|---|
da7c5cc6 | 1 | /* |
1810611d | 2 | * Copyright (c) 1982, 1986 Regents of the University of California. |
da7c5cc6 KM |
3 | * All rights reserved. The Berkeley software License Agreement |
4 | * specifies the terms and conditions for redistribution. | |
5 | * | |
4fa45901 | 6 | * @(#)systm.h 7.9 (Berkeley) %G% |
da7c5cc6 | 7 | */ |
c72ae039 BJ |
8 | |
9 | /* | |
10 | * Random set of variables | |
11 | * used by more than one | |
12 | * routine. | |
13 | */ | |
2be0c1e4 | 14 | extern char version[]; /* system version */ |
c72ae039 BJ |
15 | |
16 | /* | |
2bc9489e KB |
17 | * Nblkdev is the number of entries (rows) in the block switch. |
18 | * Used in bounds checking on major device numbers. | |
c72ae039 BJ |
19 | */ |
20 | int nblkdev; | |
21 | ||
22 | /* | |
23 | * Number of character switch entries. | |
c72ae039 BJ |
24 | */ |
25 | int nchrdev; | |
26 | ||
732aea90 | 27 | int nswdev; /* number of swap devices */ |
c72ae039 BJ |
28 | int mpid; /* generic for unique process id's */ |
29 | char runin; /* scheduling flag */ | |
30 | char runout; /* scheduling flag */ | |
31 | int runrun; /* scheduling flag */ | |
32 | char kmapwnt; /* kernel map want flag */ | |
33 | char curpri; /* more scheduling */ | |
34 | ||
35 | int maxmem; /* actual max memory per process */ | |
36 | int physmem; /* physical memory on this CPU */ | |
37 | ||
c72ae039 | 38 | int nswap; /* size of swap space */ |
b231992d | 39 | extern int intstack[]; /* stack for interrupts */ |
c72ae039 | 40 | dev_t rootdev; /* device of the root */ |
6d0f0ece | 41 | struct vnode *rootvp; /* vnode of root filesystem */ |
c7cc2235 BJ |
42 | dev_t dumpdev; /* device to take dumps on */ |
43 | long dumplo; /* offset into dumpdev */ | |
c72ae039 | 44 | dev_t swapdev; /* swapping device */ |
6d0f0ece | 45 | struct vnode *swapdev_vp; /* vnode equivalent to above */ |
c7cc2235 | 46 | dev_t argdev; /* device for argument lists */ |
6d0f0ece | 47 | struct vnode *argdev_vp; /* vnode equivalent to above */ |
c72ae039 | 48 | |
475d0220 | 49 | #if defined(vax) || defined(tahoe) || defined(hp300) |
c72ae039 BJ |
50 | extern int icode[]; /* user init code */ |
51 | extern int szicode; /* its size */ | |
1607f72d | 52 | #endif |
c72ae039 | 53 | |
c72ae039 | 54 | int memall(); |
c72ae039 BJ |
55 | int vmemall(); |
56 | swblk_t vtod(); | |
c72ae039 BJ |
57 | |
58 | /* | |
59 | * Structure of the system-entry table | |
60 | */ | |
61 | extern struct sysent | |
62 | { | |
f95140e3 | 63 | int sy_narg; /* total number of arguments */ |
c72ae039 BJ |
64 | int (*sy_call)(); /* handler */ |
65 | } sysent[]; | |
66 | ||
c72ae039 | 67 | int noproc; /* no one is running just now */ |
ca737cbe | 68 | char *panicstr; |
1a9fdb7b | 69 | int wantin; |
bae6e9d2 | 70 | int boothowto; /* reboot flags, from console subsystem */ |
cf2f037d | 71 | #ifdef KADB |
61ce5b18 | 72 | char *bootesym; /* end of symbol info from boot */ |
cf2f037d | 73 | #endif |
49350a1c BJ |
74 | int selwait; |
75 | ||
4fa45901 | 76 | extern char *vmmap; /* poor name! */ |
2be0c1e4 | 77 | |
49350a1c BJ |
78 | /* casts to keep lint happy */ |
79 | #define insque(q,p) _insque((caddr_t)q,(caddr_t)p) | |
80 | #define remque(q) _remque((caddr_t)q) |