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Add "-s" argument to kdump to suppress the display of I/O data.

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MFC after:	1 week
This commit is contained in:
Robert Watson 2005-11-12 14:21:48 +00:00
parent b2f9e51241
commit df0c8868b1
2 changed files with 11 additions and 4 deletions
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4
usr.bin/kdump/kdump.1
View File

@ -40,7 +40,7 @@
.Nd display kernel trace data
.Sh SYNOPSIS
.Nm
.Op Fl dEnlHRT
.Op Fl dEnlHRsT
.Op Fl f Ar trfile
.Op Fl m Ar maxdata
.Op Fl p Ar pid
@ -96,6 +96,8 @@ This may be useful when there are multiple processes recorded in the
same trace file.
.It Fl R
Display relative timestamps (time since previous entry).
.It Fl s
Suppress display of I/O data.
.It Fl T
Display absolute timestamps for each entry (seconds since epoch).
.It Fl t Ar cnisuw

11
usr.bin/kdump/kdump.c
View File

@ -81,7 +81,7 @@ void ktruser(int, unsigned char *);
void usage(void);
const char *ioctlname(u_long);
int timestamp, decimal, fancy = 1, tail, threads, maxdata;
int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata;
const char *tracefile = DEF_TRACEFILE;
struct ktr_header ktr_header;
@ -98,7 +98,7 @@ main(int argc, char *argv[])
(void) setlocale(LC_CTYPE, "");
while ((ch = getopt(argc,argv,"f:dElm:np:HRTt:")) != -1)
while ((ch = getopt(argc,argv,"f:dElm:np:HRsTt:")) != -1)
switch((char)ch) {
case 'f':
tracefile = optarg;
@ -118,6 +118,9 @@ main(int argc, char *argv[])
case 'p':
pid = atoi(optarg);
break;
case 's':
suppressdata = 1;
break;
case 'E':
timestamp = 3; /* elapsed timestamp */
break;
@ -538,6 +541,8 @@ ktrgenio(struct ktr_genio *ktr, int len)
printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
datalen == 1 ? "" : "s");
if (suppressdata)
return;
if (maxdata && datalen > maxdata)
datalen = maxdata;
@ -599,6 +604,6 @@ void
usage(void)
{
(void)fprintf(stderr,
"usage: kdump [-dEnlHRT] [-f trfile] [-m maxdata] [-p pid] [-t [cnisuw]]\n");
"usage: kdump [-dEnlHRsT] [-f trfile] [-m maxdata] [-p pid] [-t [cnisuw]]\n");
exit(1);
}