b65eb2f8a8
Submitted by: Juraj Lutter <juraj@lutter.sk> MFC after: 1 week Differential revision: https://reviews.freebsd.org/D26568
248 lines
7.1 KiB
C
248 lines
7.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010 Konstantin Belousov
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* Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
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* All rights reserved.
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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/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <stdint.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 <libprocstat.h>
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#include "procstat.h"
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static void
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procstat_print_signame(int sig)
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{
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char name[12];
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int i;
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if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) {
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strlcpy(name, sys_signame[sig], sizeof(name));
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for (i = 0; name[i] != 0; i++)
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name[i] = toupper(name[i]);
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xo_emit("{d:signal/%-7s/%s} ", name);
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xo_open_container(name);
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} else {
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xo_emit("{d:signal/%-7d/%d} ", sig);
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snprintf(name, 12, "%d", sig);
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xo_open_container(name);
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}
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}
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static void
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procstat_close_signame(int sig)
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{
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char name[12];
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int i;
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if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) {
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strlcpy(name, sys_signame[sig], sizeof(name));
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for (i = 0; name[i] != 0; i++)
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name[i] = toupper(name[i]);
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xo_close_container(name);
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} else {
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snprintf(name, 12, "%d", sig);
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xo_close_container(name);
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}
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}
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static void
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procstat_print_sig(const sigset_t *set, int sig, char flag)
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{
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xo_emit("{d:sigmember/%c}", sigismember(set, sig) ? flag : '-');
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switch (flag) {
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case 'B':
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xo_emit("{en:mask/%s}", sigismember(set, sig) ?
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"true" : "false");
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break;
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case 'C':
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xo_emit("{en:catch/%s}", sigismember(set, sig) ?
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"true" : "false");
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break;
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case 'P':
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xo_emit("{en:list/%s}", sigismember(set, sig) ?
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"true" : "false");
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break;
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case 'I':
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xo_emit("{en:ignore/%s}", sigismember(set, sig) ?
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"true" : "false");
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break;
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default:
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xo_emit("{en:unknown/%s}", sigismember(set, sig) ?
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"true" : "false");
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break;
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}
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}
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void
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procstat_sigs(struct procstat *prstat __unused, struct kinfo_proc *kipp)
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{
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int j;
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if ((procstat_opts & PS_OPT_NOHEADER) == 0)
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xo_emit("{T:/%5s %-16s %-7s %4s}\n", "PID", "COMM", "SIG",
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"FLAGS");
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xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid);
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xo_emit("{e:command/%-16s/%s}", kipp->ki_comm);
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xo_open_container("signals");
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for (j = 1; j <= _SIG_MAXSIG; j++) {
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xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
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xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
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procstat_print_signame(j);
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xo_emit(" ");
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procstat_print_sig(&kipp->ki_siglist, j, 'P');
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procstat_print_sig(&kipp->ki_sigignore, j, 'I');
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procstat_print_sig(&kipp->ki_sigcatch, j, 'C');
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procstat_close_signame(j);
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xo_emit("\n");
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}
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xo_close_container("signals");
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}
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void
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procstat_threads_sigs(struct procstat *procstat, struct kinfo_proc *kipp)
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{
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struct kinfo_proc *kip;
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int j;
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unsigned int count, i;
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char *threadid;
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if ((procstat_opts & PS_OPT_NOHEADER) == 0)
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xo_emit("{T:/%5s %6s %-16s %-7s %4s}\n", "PID", "TID", "COMM",
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"SIG", "FLAGS");
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kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
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kipp->ki_pid, &count);
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if (kip == NULL)
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return;
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xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid);
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xo_emit("{e:command/%-16s/%s}", kipp->ki_comm);
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xo_open_container("threads");
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kinfo_proc_sort(kip, count);
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for (i = 0; i < count; i++) {
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kipp = &kip[i];
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asprintf(&threadid, "%d", kipp->ki_tid);
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if (threadid == NULL)
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xo_errc(1, ENOMEM, "Failed to allocate memory in "
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"procstat_threads_sigs()");
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xo_open_container(threadid);
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xo_emit("{e:thread_id/%6d/%d}", kipp->ki_tid);
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xo_open_container("signals");
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for (j = 1; j <= _SIG_MAXSIG; j++) {
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xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
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xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid);
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xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
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procstat_print_signame(j);
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xo_emit(" ");
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procstat_print_sig(&kipp->ki_siglist, j, 'P');
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procstat_print_sig(&kipp->ki_sigmask, j, 'B');
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procstat_close_signame(j);
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xo_emit("\n");
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}
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xo_close_container("signals");
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xo_close_container(threadid);
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free(threadid);
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}
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xo_close_container("threads");
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procstat_freeprocs(procstat, kip);
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}
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void
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procstat_sigfastblock(struct procstat *procstat, struct kinfo_proc *kipp)
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{
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struct kinfo_proc *kip;
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char *threadid;
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uintptr_t sigfastblk_addr;
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int error, name[4];
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unsigned int count, i;
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size_t len;
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bool has_sigfastblk_addr;
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if ((procstat_opts & PS_OPT_NOHEADER) == 0)
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xo_emit("{T:/%5s %6s %-16s %-16s}\n", "PID", "TID",
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"COMM", "SIGFBLK");
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kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
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kipp->ki_pid, &count);
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if (kip == NULL)
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return;
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xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid);
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xo_emit("{e:command/%-16s/%s}", kipp->ki_comm);
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xo_open_container("threads");
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kinfo_proc_sort(kip, count);
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for (i = 0; i < count; i++) {
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kipp = &kip[i];
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len = sizeof(sigfastblk_addr);
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name[0] = CTL_KERN;
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name[1] = KERN_PROC;
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name[2] = KERN_PROC_SIGFASTBLK;
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name[3] = kipp->ki_tid;
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error = sysctl(name, 4, &sigfastblk_addr, &len, NULL, 0);
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if (error < 0) {
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if (errno != ESRCH && errno != ENOTTY) {
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warn("sysctl: kern.proc.fastsigblk: %d",
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kipp->ki_tid);
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}
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has_sigfastblk_addr = false;
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} else
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has_sigfastblk_addr = true;
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asprintf(&threadid, "%d", kipp->ki_tid);
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if (threadid == NULL)
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xo_errc(1, ENOMEM, "Failed to allocate memory in "
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"procstat_sigfastblock()");
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xo_open_container(threadid);
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xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
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xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid);
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xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
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xo_emit("{e:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ?
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(uintmax_t)sigfastblk_addr : (uintmax_t)-1);
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xo_emit("{d:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ?
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(uintmax_t)sigfastblk_addr : (uintmax_t)-1);
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xo_emit("\n");
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xo_close_container(threadid);
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free(threadid);
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}
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xo_close_container("threads");
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procstat_freeprocs(procstat, kip);
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}
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