Remove kgmon(8)
Follow-up to the removal of the mcov from kernel. Noted by: mckusick Reviewed by: mckusick Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D29563
This commit is contained in:
Konstantin Belousov
parent
a64096aa63
commit
2d223ccdae
@ -36,6 +36,10 @@
|
|||||||
# xargs -n1 | sort | uniq -d;
|
# xargs -n1 | sort | uniq -d;
|
||||||
# done
|
# done
|
||||||
|
|
||||||
|
# 20210403: remove kgmon(8)
|
||||||
|
OLD_FILES+=usr/sbin/kgmon
|
||||||
|
OLD_FILES+=usr/share/man/man8/kgmon.8.gz
|
||||||
|
|
||||||
# 20210401: remove bt(4) man page
|
# 20210401: remove bt(4) man page
|
||||||
OLD_FILES+=usr/share/man/man4/bt.4.gz
|
OLD_FILES+=usr/share/man/man4/bt.4.gz
|
||||||
|
|
||||||
|
|||||||
@ -28,7 +28,7 @@
|
|||||||
.\"
|
.\"
|
||||||
.\" $FreeBSD$
|
.\" $FreeBSD$
|
||||||
.\"
|
.\"
|
||||||
.Dd November 2, 2012
|
.Dd Apryl 3, 2021
|
||||||
.Dt HWPMC 4
|
.Dt HWPMC 4
|
||||||
.Os
|
.Os
|
||||||
.Sh NAME
|
.Sh NAME
|
||||||
@ -198,13 +198,6 @@ This modifier is valid only for a PMC being allocated in process-private
|
|||||||
mode.
|
mode.
|
||||||
It signifies that the PMC will track hardware events for its
|
It signifies that the PMC will track hardware events for its
|
||||||
target process and the target's current and future descendants.
|
target process and the target's current and future descendants.
|
||||||
.It Dv PMC_F_KGMON
|
|
||||||
This modifier is valid only for a PMC being allocated in system-wide
|
|
||||||
sampling mode.
|
|
||||||
It signifies that the PMC's sampling interrupt is to be used to drive
|
|
||||||
kernel profiling via
|
|
||||||
.Xr kgmon 8 .
|
|
||||||
This functionality is currently unimplemented.
|
|
||||||
.It Dv PMC_F_LOG_PROCCSW
|
.It Dv PMC_F_LOG_PROCCSW
|
||||||
This modifier is valid only for a PMC being allocated in process-private
|
This modifier is valid only for a PMC being allocated in process-private
|
||||||
mode.
|
mode.
|
||||||
@ -764,7 +757,6 @@ operation is not being monitored by
|
|||||||
.Xr kenv 1 ,
|
.Xr kenv 1 ,
|
||||||
.Xr pmc 3 ,
|
.Xr pmc 3 ,
|
||||||
.Xr pmclog 3 ,
|
.Xr pmclog 3 ,
|
||||||
.Xr kgmon 8 ,
|
|
||||||
.Xr kldload 8 ,
|
.Xr kldload 8 ,
|
||||||
.Xr pmccontrol 8 ,
|
.Xr pmccontrol 8 ,
|
||||||
.Xr pmcstat 8 ,
|
.Xr pmcstat 8 ,
|
||||||
|
|||||||
@ -104,8 +104,7 @@ and throwing away information and resolution.
|
|||||||
The profiling clock.
|
The profiling clock.
|
||||||
This is a real clock with frequency 1024.
|
This is a real clock with frequency 1024.
|
||||||
It is used mainly by
|
It is used mainly by
|
||||||
.Xr moncontrol 3 ,
|
.Xr moncontrol 3
|
||||||
.Xr kgmon 8
|
|
||||||
and
|
and
|
||||||
.Xr gprof 1 .
|
.Xr gprof 1 .
|
||||||
Applications should determine its actual frequency using
|
Applications should determine its actual frequency using
|
||||||
|
|||||||
@ -784,7 +784,6 @@ DIRDEPS.amd64= \
|
|||||||
usr.sbin/hyperv/tools \
|
usr.sbin/hyperv/tools \
|
||||||
usr.sbin/hyperv/tools/kvp \
|
usr.sbin/hyperv/tools/kvp \
|
||||||
usr.sbin/hyperv/tools/vss \
|
usr.sbin/hyperv/tools/vss \
|
||||||
usr.sbin/kgmon \
|
|
||||||
usr.sbin/lptcontrol \
|
usr.sbin/lptcontrol \
|
||||||
usr.sbin/mptable \
|
usr.sbin/mptable \
|
||||||
usr.sbin/spkrtest \
|
usr.sbin/spkrtest \
|
||||||
@ -794,8 +793,7 @@ DIRDEPS.amd64= \
|
|||||||
DIRDEPS.arm= \
|
DIRDEPS.arm= \
|
||||||
sbin/bsdlabel \
|
sbin/bsdlabel \
|
||||||
sbin/fdisk \
|
sbin/fdisk \
|
||||||
usr.sbin/ofwdump \
|
usr.sbin/ofwdump
|
||||||
usr.sbin/kgmon
|
|
||||||
|
|
||||||
DIRDEPS.i386= \
|
DIRDEPS.i386= \
|
||||||
sbin/bsdlabel \
|
sbin/bsdlabel \
|
||||||
@ -809,7 +807,6 @@ DIRDEPS.i386= \
|
|||||||
usr.sbin/hyperv/tools \
|
usr.sbin/hyperv/tools \
|
||||||
usr.sbin/hyperv/tools/kvp \
|
usr.sbin/hyperv/tools/kvp \
|
||||||
usr.sbin/hyperv/tools/vss \
|
usr.sbin/hyperv/tools/vss \
|
||||||
usr.sbin/kgmon \
|
|
||||||
usr.sbin/lptcontrol \
|
usr.sbin/lptcontrol \
|
||||||
usr.sbin/mptable \
|
usr.sbin/mptable \
|
||||||
usr.sbin/pnpinfo \
|
usr.sbin/pnpinfo \
|
||||||
|
|||||||
@ -21,7 +21,6 @@ SUBDIR+= cpucontrol
|
|||||||
.if ${MK_HYPERV} != "no"
|
.if ${MK_HYPERV} != "no"
|
||||||
SUBDIR+= hyperv
|
SUBDIR+= hyperv
|
||||||
.endif
|
.endif
|
||||||
SUBDIR+= kgmon
|
|
||||||
SUBDIR+= lptcontrol
|
SUBDIR+= lptcontrol
|
||||||
SUBDIR+= mptable
|
SUBDIR+= mptable
|
||||||
SUBDIR+= spkrtest
|
SUBDIR+= spkrtest
|
||||||
|
|||||||
@ -1,4 +1,3 @@
|
|||||||
# $FreeBSD$
|
# $FreeBSD$
|
||||||
|
|
||||||
SUBDIR+= kgmon
|
|
||||||
SUBDIR+= ofwdump
|
SUBDIR+= ofwdump
|
||||||
|
|||||||
@ -15,7 +15,6 @@ SUBDIR+= cpucontrol
|
|||||||
.if ${MK_HYPERV} != "no"
|
.if ${MK_HYPERV} != "no"
|
||||||
SUBDIR+= hyperv
|
SUBDIR+= hyperv
|
||||||
.endif
|
.endif
|
||||||
SUBDIR+= kgmon
|
|
||||||
SUBDIR+= lptcontrol
|
SUBDIR+= lptcontrol
|
||||||
SUBDIR+= mptable
|
SUBDIR+= mptable
|
||||||
SUBDIR+= pnpinfo
|
SUBDIR+= pnpinfo
|
||||||
|
|||||||
@ -1,16 +0,0 @@
|
|||||||
# @(#)Makefile 8.1 (Berkeley) 6/6/93
|
|
||||||
# $FreeBSD$
|
|
||||||
|
|
||||||
PROG= kgmon
|
|
||||||
MAN= kgmon.8
|
|
||||||
WARNS?= 2
|
|
||||||
|
|
||||||
# This program may safely be run setuid-root to allow non-root
|
|
||||||
# users to start, stop, and reset profiling buffers.
|
|
||||||
#
|
|
||||||
#BINOWN=root
|
|
||||||
#BINMODE=4555
|
|
||||||
|
|
||||||
LIBADD= kvm
|
|
||||||
|
|
||||||
.include <bsd.prog.mk>
|
|
||||||
@ -1,19 +0,0 @@
|
|||||||
# $FreeBSD$
|
|
||||||
# Autogenerated - do NOT edit!
|
|
||||||
|
|
||||||
DIRDEPS = \
|
|
||||||
gnu/lib/csu \
|
|
||||||
include \
|
|
||||||
include/xlocale \
|
|
||||||
lib/${CSU_DIR} \
|
|
||||||
lib/libc \
|
|
||||||
lib/libcompiler_rt \
|
|
||||||
lib/libelf \
|
|
||||||
lib/libkvm \
|
|
||||||
|
|
||||||
|
|
||||||
.include <dirdeps.mk>
|
|
||||||
|
|
||||||
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
|
|
||||||
# local dependencies - needed for -jN in clean tree
|
|
||||||
.endif
|
|
||||||
@ -1,130 +0,0 @@
|
|||||||
.\" Copyright (c) 1983, 1991, 1993
|
|
||||||
.\" The Regents of the University of California. 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.
|
|
||||||
.\" 3. Neither the name of the University nor the names of its contributors
|
|
||||||
.\" may be used to endorse or promote products derived from this software
|
|
||||||
.\" without specific prior written permission.
|
|
||||||
.\"
|
|
||||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
||||||
.\"
|
|
||||||
.\" @(#)kgmon.8 8.1 (Berkeley) 6/6/93
|
|
||||||
.\" $FreeBSD$
|
|
||||||
.\"
|
|
||||||
.Dd November 27, 2017
|
|
||||||
.Dt KGMON 8
|
|
||||||
.Os
|
|
||||||
.Sh NAME
|
|
||||||
.Nm kgmon
|
|
||||||
.Nd generate a dump of the operating system's profile buffers
|
|
||||||
.Sh SYNOPSIS
|
|
||||||
.Nm
|
|
||||||
.Op Fl Bbhpr
|
|
||||||
.Op Fl M Ar core
|
|
||||||
.Op Fl N Ar system
|
|
||||||
.Sh DESCRIPTION
|
|
||||||
The
|
|
||||||
.Nm
|
|
||||||
utility is used when profiling the operating system.
|
|
||||||
When no arguments are supplied,
|
|
||||||
.Nm
|
|
||||||
indicates the state of operating system profiling as running,
|
|
||||||
off, or not configured.
|
|
||||||
(see
|
|
||||||
.Xr config 8 )
|
|
||||||
If the
|
|
||||||
.Fl p
|
|
||||||
flag is specified,
|
|
||||||
.Nm
|
|
||||||
extracts profile data from the operating system and produces a
|
|
||||||
.Pa gmon.out
|
|
||||||
file suitable for later analysis by
|
|
||||||
.Xr gprof 1 .
|
|
||||||
.Pp
|
|
||||||
The options are as follows:
|
|
||||||
.Bl -tag -width Ds
|
|
||||||
.It Fl B
|
|
||||||
Resume the collection of high resolution profile data.
|
|
||||||
.It Fl b
|
|
||||||
Resume the collection of low resolution profile data.
|
|
||||||
.It Fl h
|
|
||||||
Stop the collection of profile data.
|
|
||||||
.It Fl p
|
|
||||||
Dump the contents of the profile buffers into a
|
|
||||||
.Pa gmon.out
|
|
||||||
file.
|
|
||||||
.It Fl r
|
|
||||||
Reset all the profile buffers.
|
|
||||||
If the
|
|
||||||
.Fl p
|
|
||||||
flag is also specified, the
|
|
||||||
.Pa gmon.out
|
|
||||||
file is generated before the buffers are reset.
|
|
||||||
.It Fl M
|
|
||||||
Extract values associated with the name list from the specified core
|
|
||||||
instead of the default
|
|
||||||
.Pa /dev/kmem .
|
|
||||||
.It Fl N
|
|
||||||
Extract the name list from the specified system instead of the
|
|
||||||
default
|
|
||||||
.Pa /boot/kernel/kernel .
|
|
||||||
.El
|
|
||||||
.Pp
|
|
||||||
If neither
|
|
||||||
.Fl B
|
|
||||||
nor
|
|
||||||
.Fl b
|
|
||||||
nor
|
|
||||||
.Fl h
|
|
||||||
is specified, the state of profiling collection remains unchanged.
|
|
||||||
For example, if the
|
|
||||||
.Fl p
|
|
||||||
flag is specified and profile data is being collected,
|
|
||||||
profiling will be momentarily suspended,
|
|
||||||
the operating system profile buffers will be dumped,
|
|
||||||
and profiling will be immediately resumed.
|
|
||||||
.Pp
|
|
||||||
The profile buffers should be reset when the resolution
|
|
||||||
of the profile data is changed.
|
|
||||||
.Sh FILES
|
|
||||||
.Bl -tag -width /boot/kernel/kernel -compact
|
|
||||||
.It Pa /boot/kernel/kernel
|
|
||||||
the default system
|
|
||||||
.It Pa /dev/kmem
|
|
||||||
the default memory
|
|
||||||
.El
|
|
||||||
.Sh DIAGNOSTICS
|
|
||||||
Users with only read permission on
|
|
||||||
.Pa /dev/kmem
|
|
||||||
cannot change the state
|
|
||||||
of profiling collection.
|
|
||||||
They can get a
|
|
||||||
.Pa gmon.out
|
|
||||||
file with the warning that the data may be
|
|
||||||
inconsistent if profiling is in progress.
|
|
||||||
.Sh SEE ALSO
|
|
||||||
.Xr gprof 1 ,
|
|
||||||
.Xr config 8 ,
|
|
||||||
.Xr pmcstat 8
|
|
||||||
.Sh HISTORY
|
|
||||||
The
|
|
||||||
.Nm
|
|
||||||
utility appeared in
|
|
||||||
.Bx 4.2 .
|
|
||||||
@ -1,531 +0,0 @@
|
|||||||
/*-
|
|
||||||
* SPDX-License-Identifier: BSD-3-Clause
|
|
||||||
*
|
|
||||||
* Copyright (c) 1983, 1992, 1993
|
|
||||||
* The Regents of the University of California. 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.
|
|
||||||
* 3. Neither the name of the University nor the names of its contributors
|
|
||||||
* may be used to endorse or promote products derived from this software
|
|
||||||
* without specific prior written permission.
|
|
||||||
*
|
|
||||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef lint
|
|
||||||
static const char copyright[] =
|
|
||||||
"@(#) Copyright (c) 1983, 1992, 1993\n\
|
|
||||||
The Regents of the University of California. All rights reserved.\n";
|
|
||||||
#endif /* not lint */
|
|
||||||
|
|
||||||
#ifndef lint
|
|
||||||
#if 0
|
|
||||||
static char sccsid[] = "@(#)kgmon.c 8.1 (Berkeley) 6/6/93";
|
|
||||||
#endif
|
|
||||||
#endif /* not lint */
|
|
||||||
|
|
||||||
#include <sys/cdefs.h>
|
|
||||||
__FBSDID("$FreeBSD$");
|
|
||||||
|
|
||||||
#include <sys/param.h>
|
|
||||||
#include <sys/file.h>
|
|
||||||
#include <sys/time.h>
|
|
||||||
#include <sys/sysctl.h>
|
|
||||||
#include <sys/gmon.h>
|
|
||||||
#include <ctype.h>
|
|
||||||
#include <err.h>
|
|
||||||
#include <errno.h>
|
|
||||||
#include <kvm.h>
|
|
||||||
#include <limits.h>
|
|
||||||
#include <nlist.h>
|
|
||||||
#include <paths.h>
|
|
||||||
#include <stddef.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
|
|
||||||
struct nlist nl[] = {
|
|
||||||
#define N_GMONPARAM 0
|
|
||||||
{ "__gmonparam" },
|
|
||||||
#define N_PROFHZ 1
|
|
||||||
{ "_profhz" },
|
|
||||||
{ NULL },
|
|
||||||
};
|
|
||||||
|
|
||||||
struct kvmvars {
|
|
||||||
kvm_t *kd;
|
|
||||||
struct gmonparam gpm;
|
|
||||||
};
|
|
||||||
|
|
||||||
int Bflag, bflag, hflag, kflag, rflag, pflag;
|
|
||||||
int debug = 0;
|
|
||||||
int getprof(struct kvmvars *);
|
|
||||||
int getprofhz(struct kvmvars *);
|
|
||||||
void kern_readonly(int);
|
|
||||||
int openfiles(const char *, char *, struct kvmvars *);
|
|
||||||
void setprof(struct kvmvars *kvp, int state);
|
|
||||||
void dumpstate(struct kvmvars *kvp);
|
|
||||||
void reset(struct kvmvars *kvp);
|
|
||||||
static void usage(void);
|
|
||||||
|
|
||||||
int
|
|
||||||
main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
int ch, mode, disp, accessmode;
|
|
||||||
struct kvmvars kvmvars;
|
|
||||||
const char *systemname;
|
|
||||||
char *kmemf;
|
|
||||||
|
|
||||||
if (seteuid(getuid()) != 0) {
|
|
||||||
err(1, "seteuid failed\n");
|
|
||||||
}
|
|
||||||
kmemf = NULL;
|
|
||||||
systemname = NULL;
|
|
||||||
while ((ch = getopt(argc, argv, "M:N:Bbhpr")) != -1) {
|
|
||||||
switch((char)ch) {
|
|
||||||
|
|
||||||
case 'M':
|
|
||||||
kmemf = optarg;
|
|
||||||
kflag = 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 'N':
|
|
||||||
systemname = optarg;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 'B':
|
|
||||||
Bflag = 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 'b':
|
|
||||||
bflag = 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 'h':
|
|
||||||
hflag = 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 'p':
|
|
||||||
pflag = 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 'r':
|
|
||||||
rflag = 1;
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
usage();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
argc -= optind;
|
|
||||||
argv += optind;
|
|
||||||
|
|
||||||
#define BACKWARD_COMPATIBILITY
|
|
||||||
#ifdef BACKWARD_COMPATIBILITY
|
|
||||||
if (*argv) {
|
|
||||||
systemname = *argv;
|
|
||||||
if (*++argv) {
|
|
||||||
kmemf = *argv;
|
|
||||||
++kflag;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
if (systemname == NULL)
|
|
||||||
systemname = getbootfile();
|
|
||||||
accessmode = openfiles(systemname, kmemf, &kvmvars);
|
|
||||||
mode = getprof(&kvmvars);
|
|
||||||
if (hflag)
|
|
||||||
disp = GMON_PROF_OFF;
|
|
||||||
else if (Bflag)
|
|
||||||
disp = GMON_PROF_HIRES;
|
|
||||||
else if (bflag)
|
|
||||||
disp = GMON_PROF_ON;
|
|
||||||
else
|
|
||||||
disp = mode;
|
|
||||||
if (pflag)
|
|
||||||
dumpstate(&kvmvars);
|
|
||||||
if (rflag)
|
|
||||||
reset(&kvmvars);
|
|
||||||
if (accessmode == O_RDWR)
|
|
||||||
setprof(&kvmvars, disp);
|
|
||||||
(void)fprintf(stdout, "kgmon: kernel profiling is %s.\n",
|
|
||||||
disp == GMON_PROF_OFF ? "off" :
|
|
||||||
disp == GMON_PROF_HIRES ? "running (high resolution)" :
|
|
||||||
disp == GMON_PROF_ON ? "running" :
|
|
||||||
disp == GMON_PROF_BUSY ? "busy" :
|
|
||||||
disp == GMON_PROF_ERROR ? "off (error)" :
|
|
||||||
"in an unknown state");
|
|
||||||
return (0);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
|
||||||
usage(void)
|
|
||||||
{
|
|
||||||
fprintf(stderr, "usage: kgmon [-Bbhrp] [-M core] [-N system]\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Check that profiling is enabled and open any necessary files.
|
|
||||||
*/
|
|
||||||
int
|
|
||||||
openfiles(const char *systemname, char *kmemf, struct kvmvars *kvp)
|
|
||||||
{
|
|
||||||
size_t size;
|
|
||||||
int mib[3], state, openmode;
|
|
||||||
char errbuf[_POSIX2_LINE_MAX];
|
|
||||||
|
|
||||||
if (!kflag) {
|
|
||||||
mib[0] = CTL_KERN;
|
|
||||||
mib[1] = KERN_PROF;
|
|
||||||
mib[2] = GPROF_STATE;
|
|
||||||
size = sizeof state;
|
|
||||||
if (sysctl(mib, 3, &state, &size, NULL, 0) < 0)
|
|
||||||
errx(20, "profiling not defined in kernel");
|
|
||||||
if (!(Bflag || bflag || hflag || rflag ||
|
|
||||||
(pflag &&
|
|
||||||
(state == GMON_PROF_HIRES || state == GMON_PROF_ON))))
|
|
||||||
return (O_RDONLY);
|
|
||||||
(void)seteuid(0);
|
|
||||||
if (sysctl(mib, 3, NULL, NULL, &state, size) >= 0)
|
|
||||||
return (O_RDWR);
|
|
||||||
(void)seteuid(getuid());
|
|
||||||
kern_readonly(state);
|
|
||||||
return (O_RDONLY);
|
|
||||||
}
|
|
||||||
openmode = (Bflag || bflag || hflag || pflag || rflag)
|
|
||||||
? O_RDWR : O_RDONLY;
|
|
||||||
kvp->kd = kvm_openfiles(systemname, kmemf, NULL, openmode, errbuf);
|
|
||||||
if (kvp->kd == NULL) {
|
|
||||||
if (openmode == O_RDWR) {
|
|
||||||
openmode = O_RDONLY;
|
|
||||||
kvp->kd = kvm_openfiles(systemname, kmemf, NULL, O_RDONLY,
|
|
||||||
errbuf);
|
|
||||||
}
|
|
||||||
if (kvp->kd == NULL)
|
|
||||||
errx(2, "kvm_openfiles: %s", errbuf);
|
|
||||||
kern_readonly(GMON_PROF_ON);
|
|
||||||
}
|
|
||||||
if (kvm_nlist(kvp->kd, nl) < 0)
|
|
||||||
errx(3, "%s: no namelist", systemname);
|
|
||||||
if (!nl[N_GMONPARAM].n_value)
|
|
||||||
errx(20, "profiling not defined in kernel");
|
|
||||||
return (openmode);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Suppress options that require a writable kernel.
|
|
||||||
*/
|
|
||||||
void
|
|
||||||
kern_readonly(int mode)
|
|
||||||
{
|
|
||||||
|
|
||||||
(void)fprintf(stderr, "kgmon: kernel read-only: ");
|
|
||||||
if (pflag && (mode == GMON_PROF_HIRES || mode == GMON_PROF_ON))
|
|
||||||
(void)fprintf(stderr, "data may be inconsistent\n");
|
|
||||||
if (rflag)
|
|
||||||
(void)fprintf(stderr, "-r suppressed\n");
|
|
||||||
if (Bflag)
|
|
||||||
(void)fprintf(stderr, "-B suppressed\n");
|
|
||||||
if (bflag)
|
|
||||||
(void)fprintf(stderr, "-b suppressed\n");
|
|
||||||
if (hflag)
|
|
||||||
(void)fprintf(stderr, "-h suppressed\n");
|
|
||||||
rflag = Bflag = bflag = hflag = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Get the state of kernel profiling.
|
|
||||||
*/
|
|
||||||
int
|
|
||||||
getprof(struct kvmvars *kvp)
|
|
||||||
{
|
|
||||||
size_t size;
|
|
||||||
int mib[3];
|
|
||||||
|
|
||||||
if (kflag) {
|
|
||||||
size = kvm_read(kvp->kd, nl[N_GMONPARAM].n_value, &kvp->gpm,
|
|
||||||
sizeof kvp->gpm);
|
|
||||||
} else {
|
|
||||||
mib[0] = CTL_KERN;
|
|
||||||
mib[1] = KERN_PROF;
|
|
||||||
mib[2] = GPROF_GMONPARAM;
|
|
||||||
size = sizeof kvp->gpm;
|
|
||||||
if (sysctl(mib, 3, &kvp->gpm, &size, NULL, 0) < 0)
|
|
||||||
size = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Accept certain undersized "structs" from old kernels. We need
|
|
||||||
* everything up to hashfraction, and want profrate and
|
|
||||||
* histcounter_type. Assume that the kernel doesn't put garbage
|
|
||||||
* in any padding that is returned instead of profrate and
|
|
||||||
* histcounter_type. This is a bad assumption for dead kernels,
|
|
||||||
* since kvm_read() will normally return garbage for bytes beyond
|
|
||||||
* the end of the actual kernel struct, if any.
|
|
||||||
*/
|
|
||||||
if (size < offsetof(struct gmonparam, hashfraction) +
|
|
||||||
sizeof(kvp->gpm.hashfraction) || size > sizeof(kvp->gpm))
|
|
||||||
errx(4, "cannot get gmonparam: %s",
|
|
||||||
kflag ? kvm_geterr(kvp->kd) : strerror(errno));
|
|
||||||
bzero((char *)&kvp->gpm + size, sizeof(kvp->gpm) - size);
|
|
||||||
if (kvp->gpm.profrate == 0)
|
|
||||||
kvp->gpm.profrate = getprofhz(kvp);
|
|
||||||
#ifdef __i386__
|
|
||||||
if (kvp->gpm.histcounter_type == 0) {
|
|
||||||
/*
|
|
||||||
* This fixup only works for not-so-old i386 kernels. The
|
|
||||||
* magic 16 is the kernel FUNCTION_ALIGNMENT. 64-bit
|
|
||||||
* counters are signed; smaller counters are unsigned.
|
|
||||||
*/
|
|
||||||
kvp->gpm.histcounter_type = 16 /
|
|
||||||
(kvp->gpm.textsize / kvp->gpm.kcountsize) * CHAR_BIT;
|
|
||||||
if (kvp->gpm.histcounter_type == 64)
|
|
||||||
kvp->gpm.histcounter_type = -64;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
return (kvp->gpm.state);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Enable or disable kernel profiling according to the state variable.
|
|
||||||
*/
|
|
||||||
void
|
|
||||||
setprof(struct kvmvars *kvp, int state)
|
|
||||||
{
|
|
||||||
struct gmonparam *p = (struct gmonparam *)nl[N_GMONPARAM].n_value;
|
|
||||||
size_t sz;
|
|
||||||
int mib[3], oldstate;
|
|
||||||
|
|
||||||
sz = sizeof(state);
|
|
||||||
if (!kflag) {
|
|
||||||
mib[0] = CTL_KERN;
|
|
||||||
mib[1] = KERN_PROF;
|
|
||||||
mib[2] = GPROF_STATE;
|
|
||||||
if (sysctl(mib, 3, &oldstate, &sz, NULL, 0) < 0)
|
|
||||||
goto bad;
|
|
||||||
if (oldstate == state)
|
|
||||||
return;
|
|
||||||
(void)seteuid(0);
|
|
||||||
if (sysctl(mib, 3, NULL, NULL, &state, sz) >= 0) {
|
|
||||||
(void)seteuid(getuid());
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
(void)seteuid(getuid());
|
|
||||||
} else if (kvm_write(kvp->kd, (u_long)&p->state, (void *)&state, sz)
|
|
||||||
== (ssize_t)sz)
|
|
||||||
return;
|
|
||||||
bad:
|
|
||||||
warnx("warning: cannot turn profiling %s",
|
|
||||||
state == GMON_PROF_OFF ? "off" : "on");
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Build the gmon.out file.
|
|
||||||
*/
|
|
||||||
void
|
|
||||||
dumpstate(struct kvmvars *kvp)
|
|
||||||
{
|
|
||||||
register FILE *fp;
|
|
||||||
struct rawarc rawarc;
|
|
||||||
struct tostruct *tos;
|
|
||||||
u_long frompc;
|
|
||||||
u_short *froms, *tickbuf;
|
|
||||||
size_t i;
|
|
||||||
int mib[3];
|
|
||||||
struct gmonhdr h;
|
|
||||||
int fromindex, endfrom, toindex;
|
|
||||||
|
|
||||||
setprof(kvp, GMON_PROF_OFF);
|
|
||||||
fp = fopen("gmon.out", "w");
|
|
||||||
if (fp == NULL) {
|
|
||||||
warn("gmon.out");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Build the gmon header and write it to a file.
|
|
||||||
*/
|
|
||||||
bzero(&h, sizeof(h));
|
|
||||||
h.lpc = kvp->gpm.lowpc;
|
|
||||||
h.hpc = kvp->gpm.highpc;
|
|
||||||
h.ncnt = kvp->gpm.kcountsize + sizeof(h);
|
|
||||||
h.version = GMONVERSION;
|
|
||||||
h.profrate = kvp->gpm.profrate;
|
|
||||||
h.histcounter_type = kvp->gpm.histcounter_type;
|
|
||||||
fwrite((char *)&h, sizeof(h), 1, fp);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Write out the tick buffer.
|
|
||||||
*/
|
|
||||||
mib[0] = CTL_KERN;
|
|
||||||
mib[1] = KERN_PROF;
|
|
||||||
if ((tickbuf = (u_short *)malloc(kvp->gpm.kcountsize)) == NULL)
|
|
||||||
errx(5, "cannot allocate kcount space");
|
|
||||||
if (kflag) {
|
|
||||||
i = kvm_read(kvp->kd, (u_long)kvp->gpm.kcount, (void *)tickbuf,
|
|
||||||
kvp->gpm.kcountsize);
|
|
||||||
} else {
|
|
||||||
mib[2] = GPROF_COUNT;
|
|
||||||
i = kvp->gpm.kcountsize;
|
|
||||||
if (sysctl(mib, 3, tickbuf, &i, NULL, 0) < 0)
|
|
||||||
i = 0;
|
|
||||||
}
|
|
||||||
if (i != kvp->gpm.kcountsize)
|
|
||||||
errx(6, "read ticks: read %lu, got %ld: %s",
|
|
||||||
kvp->gpm.kcountsize, (long)i,
|
|
||||||
kflag ? kvm_geterr(kvp->kd) : strerror(errno));
|
|
||||||
if ((fwrite(tickbuf, kvp->gpm.kcountsize, 1, fp)) != 1)
|
|
||||||
err(7, "writing tocks to gmon.out");
|
|
||||||
free(tickbuf);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Write out the arc info.
|
|
||||||
*/
|
|
||||||
if ((froms = (u_short *)malloc(kvp->gpm.fromssize)) == NULL)
|
|
||||||
errx(8, "cannot allocate froms space");
|
|
||||||
if (kflag) {
|
|
||||||
i = kvm_read(kvp->kd, (u_long)kvp->gpm.froms, (void *)froms,
|
|
||||||
kvp->gpm.fromssize);
|
|
||||||
} else {
|
|
||||||
mib[2] = GPROF_FROMS;
|
|
||||||
i = kvp->gpm.fromssize;
|
|
||||||
if (sysctl(mib, 3, froms, &i, NULL, 0) < 0)
|
|
||||||
i = 0;
|
|
||||||
}
|
|
||||||
if (i != kvp->gpm.fromssize)
|
|
||||||
errx(9, "read froms: read %lu, got %ld: %s",
|
|
||||||
kvp->gpm.fromssize, (long)i,
|
|
||||||
kflag ? kvm_geterr(kvp->kd) : strerror(errno));
|
|
||||||
if ((tos = (struct tostruct *)malloc(kvp->gpm.tossize)) == NULL)
|
|
||||||
errx(10, "cannot allocate tos space");
|
|
||||||
if (kflag) {
|
|
||||||
i = kvm_read(kvp->kd, (u_long)kvp->gpm.tos, (void *)tos,
|
|
||||||
kvp->gpm.tossize);
|
|
||||||
} else {
|
|
||||||
mib[2] = GPROF_TOS;
|
|
||||||
i = kvp->gpm.tossize;
|
|
||||||
if (sysctl(mib, 3, tos, &i, NULL, 0) < 0)
|
|
||||||
i = 0;
|
|
||||||
}
|
|
||||||
if (i != kvp->gpm.tossize)
|
|
||||||
errx(11, "read tos: read %lu, got %ld: %s",
|
|
||||||
kvp->gpm.tossize, (long)i,
|
|
||||||
kflag ? kvm_geterr(kvp->kd) : strerror(errno));
|
|
||||||
if (debug)
|
|
||||||
warnx("lowpc 0x%lx, textsize 0x%lx",
|
|
||||||
(unsigned long)kvp->gpm.lowpc, kvp->gpm.textsize);
|
|
||||||
endfrom = kvp->gpm.fromssize / sizeof(*froms);
|
|
||||||
for (fromindex = 0; fromindex < endfrom; ++fromindex) {
|
|
||||||
if (froms[fromindex] == 0)
|
|
||||||
continue;
|
|
||||||
frompc = (u_long)kvp->gpm.lowpc +
|
|
||||||
(fromindex * kvp->gpm.hashfraction * sizeof(*froms));
|
|
||||||
for (toindex = froms[fromindex]; toindex != 0;
|
|
||||||
toindex = tos[toindex].link) {
|
|
||||||
if (debug)
|
|
||||||
warnx("[mcleanup] frompc 0x%lx selfpc 0x%lx "
|
|
||||||
"count %ld", frompc, tos[toindex].selfpc,
|
|
||||||
tos[toindex].count);
|
|
||||||
rawarc.raw_frompc = frompc;
|
|
||||||
rawarc.raw_selfpc = (u_long)tos[toindex].selfpc;
|
|
||||||
rawarc.raw_count = tos[toindex].count;
|
|
||||||
fwrite((char *)&rawarc, sizeof(rawarc), 1, fp);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
fclose(fp);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Get the profiling rate.
|
|
||||||
*/
|
|
||||||
int
|
|
||||||
getprofhz(struct kvmvars *kvp)
|
|
||||||
{
|
|
||||||
size_t size;
|
|
||||||
int mib[2], profrate;
|
|
||||||
struct clockinfo clockrate;
|
|
||||||
|
|
||||||
if (kflag) {
|
|
||||||
profrate = 1;
|
|
||||||
if (kvm_read(kvp->kd, nl[N_PROFHZ].n_value, &profrate,
|
|
||||||
sizeof profrate) != sizeof profrate)
|
|
||||||
warnx("get clockrate: %s", kvm_geterr(kvp->kd));
|
|
||||||
return (profrate);
|
|
||||||
}
|
|
||||||
mib[0] = CTL_KERN;
|
|
||||||
mib[1] = KERN_CLOCKRATE;
|
|
||||||
clockrate.profhz = 1;
|
|
||||||
size = sizeof clockrate;
|
|
||||||
if (sysctl(mib, 2, &clockrate, &size, NULL, 0) < 0)
|
|
||||||
warn("get clockrate");
|
|
||||||
return (clockrate.profhz);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Reset the kernel profiling date structures.
|
|
||||||
*/
|
|
||||||
void
|
|
||||||
reset(struct kvmvars *kvp)
|
|
||||||
{
|
|
||||||
char *zbuf;
|
|
||||||
u_long biggest;
|
|
||||||
int mib[3];
|
|
||||||
|
|
||||||
setprof(kvp, GMON_PROF_OFF);
|
|
||||||
|
|
||||||
biggest = kvp->gpm.kcountsize;
|
|
||||||
if (kvp->gpm.fromssize > biggest)
|
|
||||||
biggest = kvp->gpm.fromssize;
|
|
||||||
if (kvp->gpm.tossize > biggest)
|
|
||||||
biggest = kvp->gpm.tossize;
|
|
||||||
if ((zbuf = (char *)malloc(biggest)) == NULL)
|
|
||||||
errx(12, "cannot allocate zbuf space");
|
|
||||||
bzero(zbuf, biggest);
|
|
||||||
if (kflag) {
|
|
||||||
if (kvm_write(kvp->kd, (u_long)kvp->gpm.kcount, zbuf,
|
|
||||||
kvp->gpm.kcountsize) != (ssize_t)kvp->gpm.kcountsize)
|
|
||||||
errx(13, "tickbuf zero: %s", kvm_geterr(kvp->kd));
|
|
||||||
if (kvm_write(kvp->kd, (u_long)kvp->gpm.froms, zbuf,
|
|
||||||
kvp->gpm.fromssize) != (ssize_t)kvp->gpm.fromssize)
|
|
||||||
errx(14, "froms zero: %s", kvm_geterr(kvp->kd));
|
|
||||||
if (kvm_write(kvp->kd, (u_long)kvp->gpm.tos, zbuf,
|
|
||||||
kvp->gpm.tossize) != (ssize_t)kvp->gpm.tossize)
|
|
||||||
errx(15, "tos zero: %s", kvm_geterr(kvp->kd));
|
|
||||||
free(zbuf);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
(void)seteuid(0);
|
|
||||||
mib[0] = CTL_KERN;
|
|
||||||
mib[1] = KERN_PROF;
|
|
||||||
mib[2] = GPROF_COUNT;
|
|
||||||
if (sysctl(mib, 3, NULL, NULL, zbuf, kvp->gpm.kcountsize) < 0)
|
|
||||||
err(13, "tickbuf zero");
|
|
||||||
mib[2] = GPROF_FROMS;
|
|
||||||
if (sysctl(mib, 3, NULL, NULL, zbuf, kvp->gpm.fromssize) < 0)
|
|
||||||
err(14, "froms zero");
|
|
||||||
mib[2] = GPROF_TOS;
|
|
||||||
if (sysctl(mib, 3, NULL, NULL, zbuf, kvp->gpm.tossize) < 0)
|
|
||||||
err(15, "tos zero");
|
|
||||||
(void)seteuid(getuid());
|
|
||||||
free(zbuf);
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue
Block a user