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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 391Thomas Gleixner2019-06-051-15/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program file is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program in a file named copying if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.017566012@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* scripts: Switch to more portable Perl shebangKamil Rytarowski2017-05-141-1/+1
| | | | | | | | | | | | | | | | | | | | The default NetBSD package manager is pkgsrc and it installs Perl along other third party programs under custom and configurable prefix. The default prefix for binary prebuilt packages is /usr/pkg, and the Perl executable lands in /usr/pkg/bin/perl. This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's the most portable solution that should work for almost everybody. Perl's executable is detected automatically. This change switches -w option passed to the executable with more modern "use warnings;" approach. There is no functional change to the default behavior. While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?). Signed-off-by: Kamil Rytarowski <n54@gmx.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* kbuild: Make scripts executableMichal Marek2014-08-201-0/+0
| | | | | | | The Makefiles call the respective interpreter explicitly, but this makes it easier to use the scripts manually. Signed-off-by: Michal Marek <mmarek@suse.cz>
* scripts/bootgraph.pl: Add graphic headerFabian Frederick2014-04-081-2/+40
| | | | | | | Adding -header + help function like other .pl in /scripts. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Michal Marek <mmarek@suse.cz>
* bootgraph.pl: relax timing information requirementsAndrew Murray2011-06-131-1/+1
| | | | | | | | | | | | | | | | | This patch removes the assumption of the bootgraph.pl script that the timing information reported by PRINTK_TIME will contain at least one entry with a time of less than 100 seconds. Not all boards correctly reset the system timer and in many cases the inital times reported by PRINTK_TIME is high. When this occurs the bootchart.pl script fails to give any useful output. This patch sets the $firsttime variable to the largest value expected by PRINTK_TIME Signed-off-by: Andrew Murray <amurray@mpc-data.co.uk> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* bootgraph: fix for use with dot symbolsMichael Neuling2009-02-151-2/+2
| | | | | | | | | | | | | | powerpc has dot symbols, so the dmesg output looks like: <4>[ 0.327310] calling .migration_init+0x0/0x9c @ 1 <4>[ 0.327595] initcall .migration_init+0x0/0x9c returned 1 after 0 usecs The below fixes bootgraph.pl so it handles this correctly. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* bootgraph: make the bootgraph script show async waiting timeArjan van de Ven2009-01-101-4/+42
| | | | | | | | | | | | It is useful for diagnosing boot performance to see where async function calls are waiting on serialization... this patch adds this functionality to the bootgraph.pl script. The waiting time is shown as a half transparent, gray bar through the block that is waiting. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* bootchart: improve output based on Dave Jones' feedbackArjan van de Ven2009-01-071-5/+11
| | | | | | | | | | | | | | | | | | Dave Jones, in his blog, had some feedback about the bootchart script: Primarily his complaint was that shorter delays weren't visualized. The reason for that was that too small delays will have their labels mixed up in the graph in an unreadable mess. This patch has a fix for this; for one, it makes the output wider, so more will fit. The second part is that smaller delays are now shown with a much smaller font for the label; while this isn't per se readable at a 1:1 zoom, at least you can zoom in with most SVG viewing applications and see what it is you are looking at. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* tracing/fastboot: put error message on stderrStephen Hemminger2008-11-131-5/+7
| | | | | | | | | Since this scripts output is usually redirected, put error messages on standard error and exit with error code if no data is found. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: fix perlcritic warningStephen Hemminger2008-11-121-2/+2
| | | | | | | | | | | | | Impact: cleanup Fix the following warning from the perl syntax checking tool perlcritic. This tool is a lint like tool that checks for perl best practices. Loop iterator is not lexical at line 113, column 1. See page 108 of PBP. (Severity: 5) Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: fix row order in bootgraph.plAlan Jenkins2008-10-221-3/+3
| | | | | | | | | | | | | | When bootgraph.pl parses a file, it gives one row for each initcall's pid. But they are displayed in random (perl hash) order. Let's sort the pids by the start time of their first initcall instead. This helps trace module initcalls, where each has a separate pid. bootgraph.pl will show module initcalls during the initramfs; it may also be adapted to show subsequent module initcalls. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Frédéric Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: fix bootgraph.pl to run with "use strict"Alan Jenkins2008-10-221-5/+10
| | | | | | | | | As a perl novice, I would prefer to have the benefit of the interpreters' wisdom. It turns out there were already some warnings, so let's fix them. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Frédéric Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: fix initcalls disposition in bootgraph.plFrederic Weisbecker2008-10-141-0/+6
| | | | | | | | | | | | | When bootgraph.pl parses a file, it gives one row for each initcall's pid. But only few of them will be displayed => the longest. This patch corrects it by giving only a rows for pids which have initcalls that will be displayed. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: fix bootgraph.pl initcall name regexpArnaud Patard2008-10-141-4/+4
| | | | | | | | | The regexp used to match the start and the end of an initcall are matching only on [a-zA-Z\_]. This rules out initcalls with a number in them. This patch is fixing that. Signed-off-by: Arnaud Patard <apatard@mandriva.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: fix issues and improve output of bootgraph.plArjan van de Ven2008-10-141-13/+16
| | | | | | | | | | David Sanders reported some issues with bootgraph.pl's display of his sytems bootup; this commit fixes these by scaling the graph not from 0 - end time but from the first initcall to the end time; the minimum display size etc also now need to scale with this, as does the axis display. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* tracing/fastboot: fix initcalls disposition in bootgraph.plFrederic Weisbecker2008-10-141-12/+14
| | | | | | | | | | | | | | When bootgraph.pl parses a file, it gives one row for each initcall's pid. But only few of them will be displayed => the longest. This patch corrects it by giving only a rows for pids which have initcalls that will be displayed. [ mingo@elte.hu: resolved conflicts ] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing/fastboot: add a script to visualize the kernel boot process / timeArjan van de Ven2008-10-141-0/+138
When optimizing the kernel boot time, it's very valuable to visualize what is going on at which time. In addition, with the fastboot asynchronous initcall level, it's very valuable to see which initcall gets run where and when. This patch adds a script to turn a dmesg into a SVG graph (that can be shown with tools such as InkScape, Gimp or Firefox) and a small change to the initcall code to print the PID of the thread calling the initcall (so that the script can work out the parallelism). Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>