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| Commit | Line | Data |
|---|---|---|
| 430f81c3 MK |
1 | /* |
| 2 | * Copyright (c) 1988 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| 6 | * @(#)sys_machdep.c 7.1 (Berkeley) %G% | |
| 7 | */ | |
| 90114b15 | 8 | |
| 430f81c3 MK |
9 | #include "param.h" |
| 10 | #include "systm.h" | |
| 11 | #include "dir.h" | |
| 12 | #include "user.h" | |
| 13 | #include "ioctl.h" | |
| 14 | #include "file.h" | |
| 15 | #include "proc.h" | |
| 16 | #include "uio.h" | |
| 17 | #include "kernel.h" | |
| 18 | #include "mtio.h" | |
| 19 | #include "buf.h" | |
| 90114b15 | 20 | |
| 430f81c3 | 21 | #include "pte.h" |
| 90114b15 SL |
22 | |
| 23 | #ifdef TRACE | |
| 24 | int nvualarm; | |
| 25 | ||
| 26 | vtrace() | |
| 27 | { | |
| 28 | register struct a { | |
| 29 | int request; | |
| 30 | int value; | |
| 31 | } *uap; | |
| 32 | int vdoualarm(); | |
| 33 | ||
| 34 | uap = (struct a *)u.u_ap; | |
| 35 | switch (uap->request) { | |
| 36 | ||
| 37 | case VTR_DISABLE: /* disable a trace point */ | |
| 38 | case VTR_ENABLE: /* enable a trace point */ | |
| 39 | if (uap->value < 0 || uap->value >= TR_NFLAGS) | |
| 40 | u.u_error = EINVAL; | |
| 41 | else { | |
| 42 | u.u_r.r_val1 = traceflags[uap->value]; | |
| 43 | traceflags[uap->value] = uap->request; | |
| 44 | } | |
| 45 | break; | |
| 46 | ||
| 47 | case VTR_VALUE: /* return a trace point setting */ | |
| 48 | if (uap->value < 0 || uap->value >= TR_NFLAGS) | |
| 49 | u.u_error = EINVAL; | |
| 50 | else | |
| 51 | u.u_r.r_val1 = traceflags[uap->value]; | |
| 52 | break; | |
| 53 | ||
| 54 | case VTR_UALARM: /* set a real-time ualarm, less than 1 min */ | |
| 55 | if (uap->value <= 0 || uap->value > 60 * hz || | |
| 56 | nvualarm > 5) | |
| 57 | u.u_error = EINVAL; | |
| 58 | else { | |
| 59 | nvualarm++; | |
| 60 | timeout(vdoualarm, (caddr_t)u.u_procp->p_pid, | |
| 61 | uap->value); | |
| 62 | } | |
| 63 | break; | |
| 64 | ||
| 65 | case VTR_STAMP: | |
| 66 | trace(TR_STAMP, uap->value, u.u_procp->p_pid); | |
| 67 | break; | |
| 68 | } | |
| 69 | } | |
| 70 | ||
| 71 | vdoualarm(arg) | |
| 72 | int arg; | |
| 73 | { | |
| 74 | register struct proc *p; | |
| 75 | ||
| 76 | p = pfind(arg); | |
| 77 | if (p) | |
| 78 | psignal(p, 16); | |
| 79 | nvualarm--; | |
| 80 | } | |
| 81 | #endif | |
| 82 | ||
| 83 | #ifdef COMPAT | |
| 84 | /* | |
| 85 | * Note: these tables are sorted by | |
| 86 | * ioctl "code" (in ascending order). | |
| 87 | */ | |
| 88 | int dctls[] = { DKIOCHDR, 0 }; | |
| 89 | int fctls[] = { FIOCLEX, FIONCLEX, FIOASYNC, FIONBIO, FIONREAD, 0 }; | |
| 90 | int mctls[] = { MTIOCTOP, MTIOCGET, 0 }; | |
| 91 | int tctls[] = { | |
| 92 | TIOCGETD, TIOCSETD, TIOCHPCL, TIOCMODG, TIOCMODS, | |
| 93 | TIOCGETP, TIOCSETP, TIOCSETN, TIOCEXCL, TIOCNXCL, | |
| 94 | TIOCFLUSH,TIOCSETC, TIOCGETC, TIOCREMOTE,TIOCMGET, | |
| 95 | TIOCMBIC, TIOCMBIS, TIOCMSET, TIOCSTART,TIOCSTOP, | |
| 96 | TIOCPKT, TIOCNOTTY,TIOCSTI, TIOCOUTQ, TIOCGLTC, | |
| 97 | TIOCSLTC, TIOCSPGRP,TIOCGPGRP,TIOCCDTR, TIOCSDTR, | |
| 98 | TIOCCBRK, TIOCSBRK, TIOCLGET, TIOCLSET, TIOCLBIC, | |
| 99 | TIOCLBIS, 0 | |
| 100 | }; | |
| 101 | ||
| 102 | /* | |
| 103 | * Map an old style ioctl command to new. | |
| 104 | */ | |
| 105 | mapioctl(cmd) | |
| 106 | int cmd; | |
| 107 | { | |
| 108 | register int *map, c; | |
| 109 | ||
| 110 | switch ((cmd >> 8) & 0xff) { | |
| 111 | ||
| 112 | case 'd': | |
| 113 | map = dctls; | |
| 114 | break; | |
| 115 | ||
| 116 | case 'f': | |
| 117 | map = fctls; | |
| 118 | break; | |
| 119 | ||
| 120 | case 'm': | |
| 121 | map = mctls; | |
| 122 | break; | |
| 123 | ||
| 124 | case 't': | |
| 125 | map = tctls; | |
| 126 | break; | |
| 127 | ||
| 128 | default: | |
| 129 | return (0); | |
| 130 | } | |
| 131 | while ((c = *map) && (c&0xff) < (cmd&0xff)) | |
| 132 | map++; | |
| 133 | if (c && (c&0xff) == (cmd&0xff)) | |
| 134 | return (c); | |
| 135 | return (0); | |
| 136 | } | |
| 137 | #endif |