13ec1e3155
This is a small program that when invoked will create start and stop boottrace entries via sysctl, and execute the desired command. Having this as an executable -- as opposed to some shell script invoking sysctl(8) -- allows the total resource usage recorded by the trace entries to include the child process. Reviewed by: 0mp, trasz (older version) Sponsored by: NetApp, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D31929
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2022 NetApp, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/boottrace.h>
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#include <sys/sysctl.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static void
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usage(void)
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{
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fprintf(stderr, "usage: boottrace utility [argument ...]\n");
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exit(1);
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}
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int
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main(int argc, char **argv)
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{
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pid_t pid;
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int status;
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if (argc < 2)
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usage();
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argv++;
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BOOTTRACE("%s start", *argv);
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pid = fork();
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if (pid == -1) {
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exit(1);
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} else if (pid == 0) {
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execvp(*argv, argv);
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err(errno == ENOENT ? 127 : 126, "execvp %s", *argv);
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}
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waitpid(pid, &status, 0);
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if (!WIFEXITED(status))
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warnx("command terminated abnormally");
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BOOTTRACE("%s done", *argv);
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return (WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE);
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}
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