diff options
Diffstat (limited to 'usr.bin/procstat/procstat_sigs.c')
| -rw-r--r-- | usr.bin/procstat/procstat_sigs.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/usr.bin/procstat/procstat_sigs.c b/usr.bin/procstat/procstat_sigs.c new file mode 100644 index 000000000000..7bea16739b75 --- /dev/null +++ b/usr.bin/procstat/procstat_sigs.c @@ -0,0 +1,244 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2010 Konstantin Belousov + * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org> + * 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. + */ + +#include <sys/param.h> +#include <sys/sysctl.h> +#include <sys/user.h> + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <signal.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <libprocstat.h> + +#include "procstat.h" + +static void +procstat_print_signame(int sig) +{ + char name[12]; + int i; + + if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) { + strlcpy(name, sys_signame[sig], sizeof(name)); + for (i = 0; name[i] != 0; i++) + name[i] = toupper(name[i]); + xo_emit("{d:signal/%-7s/%s} ", name); + xo_open_container(name); + } else { + xo_emit("{d:signal/%-7d/%d} ", sig); + snprintf(name, 12, "%d", sig); + xo_open_container(name); + } +} + +static void +procstat_close_signame(int sig) +{ + char name[12]; + int i; + + if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) { + strlcpy(name, sys_signame[sig], sizeof(name)); + for (i = 0; name[i] != 0; i++) + name[i] = toupper(name[i]); + xo_close_container(name); + } else { + snprintf(name, 12, "%d", sig); + xo_close_container(name); + } +} + +static void +procstat_print_sig(const sigset_t *set, int sig, char flag) +{ + xo_emit("{d:sigmember/%c}", sigismember(set, sig) ? flag : '-'); + switch (flag) { + case 'B': + xo_emit("{en:mask/%s}", sigismember(set, sig) ? + "true" : "false"); + break; + case 'C': + xo_emit("{en:catch/%s}", sigismember(set, sig) ? + "true" : "false"); + break; + case 'P': + xo_emit("{en:list/%s}", sigismember(set, sig) ? + "true" : "false"); + break; + case 'I': + xo_emit("{en:ignore/%s}", sigismember(set, sig) ? + "true" : "false"); + break; + default: + xo_emit("{en:unknown/%s}", sigismember(set, sig) ? + "true" : "false"); + break; + } +} + +void +procstat_sigs(struct procstat *prstat __unused, struct kinfo_proc *kipp) +{ + int j; + + if ((procstat_opts & PS_OPT_NOHEADER) == 0) + xo_emit("{T:/%5s %-16s %-7s %4s}\n", "PID", "COMM", "SIG", + "FLAGS"); + + xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); + xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); + xo_open_container("signals"); + for (j = 1; j <= _SIG_MAXSIG; j++) { + xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); + xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); + procstat_print_signame(j); + xo_emit(" "); + procstat_print_sig(&kipp->ki_siglist, j, 'P'); + procstat_print_sig(&kipp->ki_sigignore, j, 'I'); + procstat_print_sig(&kipp->ki_sigcatch, j, 'C'); + procstat_close_signame(j); + xo_emit("\n"); + } + xo_close_container("signals"); +} + +void +procstat_threads_sigs(struct procstat *procstat, struct kinfo_proc *kipp) +{ + struct kinfo_proc *kip; + int j; + unsigned int count, i; + char *threadid; + + if ((procstat_opts & PS_OPT_NOHEADER) == 0) + xo_emit("{T:/%5s %6s %-16s %-7s %4s}\n", "PID", "TID", "COMM", + "SIG", "FLAGS"); + + kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, + kipp->ki_pid, &count); + if (kip == NULL) + return; + xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); + xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); + xo_open_container("threads"); + kinfo_proc_sort(kip, count); + for (i = 0; i < count; i++) { + kipp = &kip[i]; + asprintf(&threadid, "%d", kipp->ki_tid); + if (threadid == NULL) + xo_errc(1, ENOMEM, "Failed to allocate memory in " + "procstat_threads_sigs()"); + xo_open_container(threadid); + xo_emit("{e:thread_id/%6d/%d}", kipp->ki_tid); + xo_open_container("signals"); + + for (j = 1; j <= _SIG_MAXSIG; j++) { + xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); + xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid); + xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); + procstat_print_signame(j); + xo_emit(" "); + procstat_print_sig(&kipp->ki_siglist, j, 'P'); + procstat_print_sig(&kipp->ki_sigmask, j, 'B'); + procstat_close_signame(j); + xo_emit("\n"); + } + xo_close_container("signals"); + xo_close_container(threadid); + free(threadid); + } + xo_close_container("threads"); + procstat_freeprocs(procstat, kip); +} + +void +procstat_sigfastblock(struct procstat *procstat, struct kinfo_proc *kipp) +{ + struct kinfo_proc *kip; + char *threadid; + uintptr_t sigfastblk_addr; + int error, name[4]; + unsigned int count, i; + size_t len; + bool has_sigfastblk_addr; + + if ((procstat_opts & PS_OPT_NOHEADER) == 0) + xo_emit("{T:/%5s %6s %-16s %-16s}\n", "PID", "TID", + "COMM", "SIGFBLK"); + + kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, + kipp->ki_pid, &count); + if (kip == NULL) + return; + xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); + xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); + xo_open_container("threads"); + kinfo_proc_sort(kip, count); + for (i = 0; i < count; i++) { + kipp = &kip[i]; + len = sizeof(sigfastblk_addr); + name[0] = CTL_KERN; + name[1] = KERN_PROC; + name[2] = KERN_PROC_SIGFASTBLK; + name[3] = kipp->ki_tid; + error = sysctl(name, 4, &sigfastblk_addr, &len, NULL, 0); + if (error < 0) { + if (errno != ESRCH && errno != ENOTTY) { + warn("sysctl: kern.proc.fastsigblk: %d", + kipp->ki_tid); + } + has_sigfastblk_addr = false; + } else + has_sigfastblk_addr = true; + + asprintf(&threadid, "%d", kipp->ki_tid); + if (threadid == NULL) + xo_errc(1, ENOMEM, "Failed to allocate memory in " + "procstat_sigfastblock()"); + xo_open_container(threadid); + xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); + xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid); + xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); + xo_emit("{e:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ? + (uintmax_t)sigfastblk_addr : (uintmax_t)-1); + xo_emit("{d:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ? + (uintmax_t)sigfastblk_addr : (uintmax_t)-1); + xo_emit("\n"); + xo_close_container(threadid); + free(threadid); + } + xo_close_container("threads"); + procstat_freeprocs(procstat, kip); +} |