From 88563131a07695a978d1ea8d582fcaef2bbcf495 Mon Sep 17 00:00:00 2001 From: rwatson Date: Sun, 2 Dec 2007 23:31:45 +0000 Subject: Add procstat(1), a process inspection utility. This provides both some of the missing functionality from procfs(4) and new functionality for monitoring and debugging specific processes. procstat(1) operates in the following modes: -b Display binary information for the process. -c Display command line arguments for the process. -f Display file descriptor information for the process. -k Display the stacks of kernel threads in the process. -s Display security credential information for the process. -t Display thread information for the process. -v Display virtual memory mappings for the process. Further revision and modes are expected. Testing, ideas, etc: cognet, sam, Skip Ford Wesley Shields --- usr.bin/procstat/procstat_threads.c | 138 ++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 usr.bin/procstat/procstat_threads.c (limited to 'usr.bin/procstat/procstat_threads.c') diff --git a/usr.bin/procstat/procstat_threads.c b/usr.bin/procstat/procstat_threads.c new file mode 100644 index 0000000..dbfde79 --- /dev/null +++ b/usr.bin/procstat/procstat_threads.c @@ -0,0 +1,138 @@ +/*- + * Copyright (c) 2007 Robert N. M. Watson + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "procstat.h" + +void +procstat_threads(pid_t pid, struct kinfo_proc *kipp) +{ + struct kinfo_proc *kip; + int error, i, name[4]; + const char *str; + size_t len; + + if (!hflag) + printf("%5s %6s %-20s %2s %4s %-7s %-9s\n", "PID", "TID", + "COMM", "CPU", "PRI", "STATE", "WCHAN"); + + /* + * We need to re-query for thread information, so don't use *kipp. + */ + name[0] = CTL_KERN; + name[1] = KERN_PROC; + name[2] = KERN_PROC_PID | KERN_PROC_INC_THREAD; + name[3] = pid; + + len = 0; + error = sysctl(name, 4, NULL, &len, NULL, 0); + if (error < 0 && errno != ESRCH) { + warn("sysctl: kern.proc.pid: %d", pid); + return; + } + if (error < 0) + return; + + kip = malloc(len); + if (kip == NULL) + err(-1, "malloc"); + + if (sysctl(name, 4, kip, &len, NULL, 0) < 0) { + warn("sysctl: kern.proc.pid: %d", pid); + free(kip); + return; + } + + kinfo_proc_sort(kip, len / sizeof(*kipp)); + for (i = 0; i < len / sizeof(*kipp); i++) { + kipp = &kip[i]; + printf("%5d ", pid); + printf("%6d ", kipp->ki_tid); + printf("%-20s ", strlen(kipp->ki_comm) ? + kipp->ki_comm : "-"); + if (kipp->ki_oncpu != 255) + printf("%3d ", kipp->ki_oncpu); + else if (kipp->ki_lastcpu != 255) + printf("%3d ", kipp->ki_lastcpu); + else + printf("%3s ", "-"); + printf("%4d ", kipp->ki_pri.pri_level); + switch (kipp->ki_stat) { + case SRUN: + str = "run"; + break; + + case SSTOP: + str = "stop"; + break; + + case SSLEEP: + str = "sleep"; + break; + + case SLOCK: + str = "lock"; + break; + + case SWAIT: + str = "wait"; + break; + + case SZOMB: + str = "zomb"; + break; + + case SIDL: + str = "idle"; + break; + + default: + str = "??"; + break; + } + printf("%-7s ", str); + if (kipp->ki_kiflag & KI_LOCKBLOCK) { + printf("*%-8s ", strlen(kipp->ki_lockname) ? + kipp->ki_lockname : "-"); + } else { + printf("%-9s ", strlen(kipp->ki_wmesg) ? + kipp->ki_wmesg : "-"); + } + printf("\n"); + } + free(kip); +} -- cgit v1.1