The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=2d223ccdaed67ad336474f023a661c300bd0ef38
commit 2d223ccdaed67ad336474f023a661c300bd0ef38 Author: Konstantin Belousov <[email protected]> AuthorDate: 2021-04-02 22:00:20 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2021-04-03 21:50:28 +0000 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 --- ObsoleteFiles.inc | 4 + share/man/man4/hwpmc.4 | 10 +- share/man/man7/clocks.7 | 3 +- targets/pseudo/userland/Makefile.depend | 5 +- usr.sbin/Makefile.amd64 | 1 - usr.sbin/Makefile.arm | 1 - usr.sbin/Makefile.i386 | 1 - usr.sbin/kgmon/Makefile | 16 - usr.sbin/kgmon/Makefile.depend | 19 -- usr.sbin/kgmon/kgmon.8 | 130 -------- usr.sbin/kgmon/kgmon.c | 531 -------------------------------- 11 files changed, 7 insertions(+), 714 deletions(-) diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc index de5808958c69..3b251eee1457 100644 --- a/ObsoleteFiles.inc +++ b/ObsoleteFiles.inc @@ -36,6 +36,10 @@ # xargs -n1 | sort | uniq -d; # 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 OLD_FILES+=usr/share/man/man4/bt.4.gz diff --git a/share/man/man4/hwpmc.4 b/share/man/man4/hwpmc.4 index 5777cdd4264d..a5b4bcb94707 100644 --- a/share/man/man4/hwpmc.4 +++ b/share/man/man4/hwpmc.4 @@ -28,7 +28,7 @@ .\" .\" $FreeBSD$ .\" -.Dd November 2, 2012 +.Dd Apryl 3, 2021 .Dt HWPMC 4 .Os .Sh NAME @@ -198,13 +198,6 @@ This modifier is valid only for a PMC being allocated in process-private mode. It signifies that the PMC will track hardware events for its 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 This modifier is valid only for a PMC being allocated in process-private mode. @@ -764,7 +757,6 @@ operation is not being monitored by .Xr kenv 1 , .Xr pmc 3 , .Xr pmclog 3 , -.Xr kgmon 8 , .Xr kldload 8 , .Xr pmccontrol 8 , .Xr pmcstat 8 , diff --git a/share/man/man7/clocks.7 b/share/man/man7/clocks.7 index 692796842ed4..06b41ed551ca 100644 --- a/share/man/man7/clocks.7 +++ b/share/man/man7/clocks.7 @@ -104,8 +104,7 @@ and throwing away information and resolution. The profiling clock. This is a real clock with frequency 1024. It is used mainly by -.Xr moncontrol 3 , -.Xr kgmon 8 +.Xr moncontrol 3 and .Xr gprof 1 . Applications should determine its actual frequency using diff --git a/targets/pseudo/userland/Makefile.depend b/targets/pseudo/userland/Makefile.depend index cde4eadd6eee..6891e9eb32cb 100644 --- a/targets/pseudo/userland/Makefile.depend +++ b/targets/pseudo/userland/Makefile.depend @@ -784,7 +784,6 @@ DIRDEPS.amd64= \ usr.sbin/hyperv/tools \ usr.sbin/hyperv/tools/kvp \ usr.sbin/hyperv/tools/vss \ - usr.sbin/kgmon \ usr.sbin/lptcontrol \ usr.sbin/mptable \ usr.sbin/spkrtest \ @@ -794,8 +793,7 @@ DIRDEPS.amd64= \ DIRDEPS.arm= \ sbin/bsdlabel \ sbin/fdisk \ - usr.sbin/ofwdump \ - usr.sbin/kgmon + usr.sbin/ofwdump DIRDEPS.i386= \ sbin/bsdlabel \ @@ -809,7 +807,6 @@ DIRDEPS.i386= \ usr.sbin/hyperv/tools \ usr.sbin/hyperv/tools/kvp \ usr.sbin/hyperv/tools/vss \ - usr.sbin/kgmon \ usr.sbin/lptcontrol \ usr.sbin/mptable \ usr.sbin/pnpinfo \ diff --git a/usr.sbin/Makefile.amd64 b/usr.sbin/Makefile.amd64 index 64e5d8678c41..d4d185414f41 100644 --- a/usr.sbin/Makefile.amd64 +++ b/usr.sbin/Makefile.amd64 @@ -21,7 +21,6 @@ SUBDIR+= cpucontrol .if ${MK_HYPERV} != "no" SUBDIR+= hyperv .endif -SUBDIR+= kgmon SUBDIR+= lptcontrol SUBDIR+= mptable SUBDIR+= spkrtest diff --git a/usr.sbin/Makefile.arm b/usr.sbin/Makefile.arm index 84cff4ab3314..8987110dba31 100644 --- a/usr.sbin/Makefile.arm +++ b/usr.sbin/Makefile.arm @@ -1,4 +1,3 @@ # $FreeBSD$ -SUBDIR+= kgmon SUBDIR+= ofwdump diff --git a/usr.sbin/Makefile.i386 b/usr.sbin/Makefile.i386 index 90a74e05e061..4705fcadb36f 100644 --- a/usr.sbin/Makefile.i386 +++ b/usr.sbin/Makefile.i386 @@ -15,7 +15,6 @@ SUBDIR+= cpucontrol .if ${MK_HYPERV} != "no" SUBDIR+= hyperv .endif -SUBDIR+= kgmon SUBDIR+= lptcontrol SUBDIR+= mptable SUBDIR+= pnpinfo diff --git a/usr.sbin/kgmon/Makefile b/usr.sbin/kgmon/Makefile deleted file mode 100644 index 5f6a2a37950a..000000000000 --- a/usr.sbin/kgmon/Makefile +++ /dev/null @@ -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> diff --git a/usr.sbin/kgmon/Makefile.depend b/usr.sbin/kgmon/Makefile.depend deleted file mode 100644 index 4a0ebeceed6f..000000000000 --- a/usr.sbin/kgmon/Makefile.depend +++ /dev/null @@ -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 diff --git a/usr.sbin/kgmon/kgmon.8 b/usr.sbin/kgmon/kgmon.8 deleted file mode 100644 index 3a2ff5836f9c..000000000000 --- a/usr.sbin/kgmon/kgmon.8 +++ /dev/null @@ -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 . diff --git a/usr.sbin/kgmon/kgmon.c b/usr.sbin/kgmon/kgmon.c deleted file mode 100644 index 17f59cdd9ee2..000000000000 --- a/usr.sbin/kgmon/kgmon.c +++ /dev/null @@ -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); -} _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-main To unsubscribe, send any mail to "[email protected]"
