diff options
Diffstat (limited to 'usr.bin/ktrace/subr.c')
| -rw-r--r-- | usr.bin/ktrace/subr.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/usr.bin/ktrace/subr.c b/usr.bin/ktrace/subr.c new file mode 100644 index 000000000000..422a37bb413d --- /dev/null +++ b/usr.bin/ktrace/subr.c @@ -0,0 +1,130 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * 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. 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. + */ + +#include <sys/param.h> +#include <sys/file.h> +#include <sys/proc.h> +#include <sys/time.h> +#include <sys/uio.h> +#include <sys/ktrace.h> + +#include <stdio.h> + +#include "ktrace.h" + +void timevaladd(struct timeval *, struct timeval *); +void timevalsub(struct timeval *, struct timeval *); +void timevalfix(struct timeval *); + +int +getpoints(char *s) +{ + int facs = 0; + + while (*s) { + switch(*s) { + case 'c': + facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET; + break; + case 'i': + facs |= KTRFAC_GENIO; + break; + case 'f': + facs |= KTRFAC_FAULT | KTRFAC_FAULTEND; + break; + case 'n': + facs |= KTRFAC_NAMEI; + break; + case 'p': + facs |= KTRFAC_CAPFAIL; + break; + case 's': + facs |= KTRFAC_PSIG; + break; + case 't': + facs |= KTRFAC_STRUCT | KTRFAC_STRUCT_ARRAY; + break; + case 'u': + facs |= KTRFAC_USER; + break; + case 'w': + facs |= KTRFAC_CSW; + break; + case 'y': + facs |= KTRFAC_SYSCTL; + break; + case 'a': + facs |= KTRFAC_ARGS; + break; + case 'e': + facs |= KTRFAC_ENVS; + break; + case 'x': + facs |= KTRFAC_EXTERR; + case '+': + facs |= DEF_POINTS; + break; + default: + return (-1); + } + s++; + } + return (facs); +} + +void +timevaladd(struct timeval *t1, struct timeval *t2) +{ + t1->tv_sec += t2->tv_sec; + t1->tv_usec += t2->tv_usec; + timevalfix(t1); +} + +void +timevalsub(struct timeval *t1, struct timeval *t2) +{ + t1->tv_sec -= t2->tv_sec; + t1->tv_usec -= t2->tv_usec; + timevalfix(t1); +} + +void +timevalfix(struct timeval *t1) +{ + if (t1->tv_usec < 0) { + t1->tv_sec--; + t1->tv_usec += 1000000; + } + if (t1->tv_usec >= 1000000) { + t1->tv_sec++; + t1->tv_usec -= 1000000; + } +} |