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Differential D2446 Diff 8422 usr.bin/procstat/procstat_kstack.c

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usr.bin/procstat/procstat_kstack.c

/*- /*-
* Copyright (c) 2007 Robert N. M. Watson * Copyright (c) 2007 Robert N. M. Watson
* Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
* are met: * are met:
* 1. Redistributions of source code must retain the above copyright * 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. * notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright * 2. Redistributions in binary form must reproduce the above copyright
▲ Show 20 Lines • Show All 89 Lines • ▼ Show 20 Lines for (cp_old = old, cp_new = new; *cp_old != '\0'; cp_old++) {
if (ts == TS_FUNC || (kflag > 1 && ts == TS_OFF)) { if (ts == TS_FUNC || (kflag > 1 && ts == TS_OFF)) {
*cp_new = *cp_old; *cp_new = *cp_old;
cp_new++; cp_new++;
} }
} }
*cp_new = '\0'; *cp_new = '\0';
} }
static void
kstack_cleanup_encoded(const char *old, char *new, int kflag)
{
enum trace_state old_ts, ts;
const char *cp_old;
char *cp_new, *cp_loop, *cp_tofree, *cp_line;
ts = TS_FRAMENUM;
if (kflag == 1) {
for (cp_old = old, cp_new = new; *cp_old != '\0'; cp_old++) {
switch (*cp_old) {
case '\n':
*cp_new = *cp_old;
cp_new++;
case ' ':
case '+':
old_ts = ts;
ts = kstack_nextstate(old_ts);
continue;
}
if (ts == TS_FUNC) {
*cp_new = *cp_old;
cp_new++;
}
}
cp_tofree = cp_loop = strdup(new);
} else
cp_tofree = cp_loop = strdup(old);
while ((cp_line = strsep(&cp_loop, "\n")) != NULL) {
if (strlen(cp_line) != 0 && *cp_line != 127)
xo_emit("{le:token/%s}", cp_line);
}
*cp_new = '\0';
free(cp_tofree);
}
/* /*
* Sort threads by tid. * Sort threads by tid.
*/ */
static int static int
kinfo_kstack_compare(const void *a, const void *b) kinfo_kstack_compare(const void *a, const void *b)
{ {
return ((const struct kinfo_kstack *)a)->kkst_tid - return ((const struct kinfo_kstack *)a)->kkst_tid -
((const struct kinfo_kstack *)b)->kkst_tid; ((const struct kinfo_kstack *)b)->kkst_tid;
} }
static void static void
kinfo_kstack_sort(struct kinfo_kstack *kkstp, int count) kinfo_kstack_sort(struct kinfo_kstack *kkstp, int count)
{ {
qsort(kkstp, count, sizeof(*kkstp), kinfo_kstack_compare); qsort(kkstp, count, sizeof(*kkstp), kinfo_kstack_compare);
} }
void void
procstat_kstack(struct procstat *procstat, struct kinfo_proc *kipp, int kflag) procstat_kstack(struct procstat *procstat, struct kinfo_proc *kipp, int kflag)
{ {
struct kinfo_kstack *kkstp, *kkstp_free; struct kinfo_kstack *kkstp, *kkstp_free;
struct kinfo_proc *kip, *kip_free; struct kinfo_proc *kip, *kip_free;
char trace[KKST_MAXLEN]; char trace[KKST_MAXLEN], encoded_trace[KKST_MAXLEN];
unsigned int i, j; unsigned int i, j;
unsigned int kip_count, kstk_count; unsigned int kip_count, kstk_count;
if (!hflag) if (!hflag)
printf("%5s %6s %-16s %-16s %-29s\n", "PID", "TID", "COMM", xo_emit("{T:/%5s %6s %-16s %-16s %-29s}\n", "PID", "TID", "COMM",
"TDNAME", "KSTACK"); "TDNAME", "KSTACK");
kkstp = kkstp_free = procstat_getkstack(procstat, kipp, &kstk_count); kkstp = kkstp_free = procstat_getkstack(procstat, kipp, &kstk_count);
if (kkstp == NULL) if (kkstp == NULL)
return; return;
/* /*
* We need to re-query for thread information, so don't use *kipp. * We need to re-query for thread information, so don't use *kipp.
Show All 18 Lines for (i = 0; i < kstk_count; i++) {
for (j = 0; j < kip_count; j++) { for (j = 0; j < kip_count; j++) {
kipp = &kip_free[j]; kipp = &kip_free[j];
if (kkstp->kkst_tid == kipp->ki_tid) if (kkstp->kkst_tid == kipp->ki_tid)
break; break;
} }
if (kipp == NULL) if (kipp == NULL)
continue; continue;
printf("%5d ", kipp->ki_pid); xo_emit("{k:process_id/%5d/%d} ", kipp->ki_pid);
printf("%6d ", kkstp->kkst_tid); xo_emit("{:thread_id/%6d/%d} ", kkstp->kkst_tid);
printf("%-16s ", kipp->ki_comm); xo_emit("{:command/%-16s/%s} ", kipp->ki_comm);
printf("%-16s ", (strlen(kipp->ki_tdname) && xo_emit("{:thread_name/%-16s/%s} ", (strlen(kipp->ki_tdname) &&
(strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ? (strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ?
kipp->ki_tdname : "-"); kipp->ki_tdname : "-");
switch (kkstp->kkst_state) { switch (kkstp->kkst_state) {
case KKST_STATE_RUNNING: case KKST_STATE_RUNNING:
printf("%-29s\n", "<running>"); xo_emit("{:state/%-29s/%s}\n", "<running>");
continue; continue;
case KKST_STATE_SWAPPED: case KKST_STATE_SWAPPED:
printf("%-29s\n", "<swapped>"); xo_emit("{:state/%-29s/%s}\n", "<swapped>");
continue; continue;
case KKST_STATE_STACKOK: case KKST_STATE_STACKOK:
break; break;
default: default:
printf("%-29s\n", "<unknown>"); xo_emit("{:state/%-29s/%s}\n", "<unknown>");
continue; continue;
} }
/* /*
* The kernel generates a trace with carriage returns between * The kernel generates a trace with carriage returns between
* entries, but for a more compact view, we convert carriage * entries, but for a more compact view, we convert carriage
* returns to spaces. * returns to spaces.
*/ */
kstack_cleanup(kkstp->kkst_trace, trace, kflag); kstack_cleanup(kkstp->kkst_trace, trace, kflag);
printf("%-29s\n", trace); xo_open_list("trace");
kstack_cleanup_encoded(kkstp->kkst_trace, encoded_trace, kflag);
xo_close_list("trace");
xo_emit("{d:trace/%-29s}\n", trace);
} }
procstat_freekstack(procstat, kkstp_free); procstat_freekstack(procstat, kkstp_free);
procstat_freeprocs(procstat, kip_free); procstat_freeprocs(procstat, kip_free);
} }