Author: jhb
Date: Mon Jun 4 19:09:14 2012
New Revision: 236577
URL: http://svn.freebsd.org/changeset/base/236577
Log:
Allow the -p argument to kdump to accept either a PID or a thread ID.
Submitted by: Dmitry Banschikov d.banschikov hostcomm ru
MFC after: 1 week
Modified:
head/usr.bin/kdump/kdump.1
head/usr.bin/kdump/kdump.c
Modified: head/usr.bin/kdump/kdump.1
==============================================================================
--- head/usr.bin/kdump/kdump.1 Mon Jun 4 18:45:18 2012 (r236576)
+++ head/usr.bin/kdump/kdump.1 Mon Jun 4 19:09:14 2012 (r236577)
@@ -28,7 +28,7 @@
.\" @(#)kdump.1 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
-.Dd April 20, 2012
+.Dd June 4, 2012
.Dt KDUMP 1
.Os
.Sh NAME
@@ -86,9 +86,9 @@ string.
Suppressing this feature yields a more consistent output format and is
easily amenable to further processing.
.It Fl p Ar pid
-Display only trace events that correspond to the process
+Display only trace events that correspond to the process or thread
.Ar pid .
-This may be useful when there are multiple processes recorded in the
+This may be useful when there are multiple processes or threads recorded in the
same trace file.
.It Fl R
Display relative timestamps (time since previous entry).
Modified: head/usr.bin/kdump/kdump.c
==============================================================================
--- head/usr.bin/kdump/kdump.c Mon Jun 4 18:45:18 2012 (r236576)
+++ head/usr.bin/kdump/kdump.c Mon Jun 4 19:09:14 2012 (r236577)
@@ -251,7 +251,8 @@ main(int argc, char *argv[])
}
}
if (trpoints & (1<<ktr_header.ktr_type))
- if (pid == 0 || ktr_header.ktr_pid == pid)
+ if (pid == 0 || ktr_header.ktr_pid == pid ||
+ ktr_header.ktr_tid == pid)
dumpheader(&ktr_header);
if ((ktrlen = ktr_header.ktr_len) < 0)
errx(1, "bogus length 0x%x", ktrlen);
@@ -266,7 +267,8 @@ main(int argc, char *argv[])
if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
continue;
sv_flags = abidump(&ktr_header);
- if (pid && ktr_header.ktr_pid != pid)
+ if (pid && ktr_header.ktr_pid != pid &&
+ ktr_header.ktr_tid != pid)
continue;
if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
continue;
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