How to debug C and C++ programs with rr | Red Hat Developer
The common theme in many time-travel movies is to go back in time to find out what went wrong and fix it. Developers also have that desire to go back in time and find why the code broke and fix it. But, often, that crucial step where everything went wrong happened long ago, and the information is no longer available. The rr project lets programmers examine the entire life of a C or C++ program run
Linuxã§rawディスクã®imageファイルを扱ã†ã‚ã‚Œã“れ（空ファイル作æˆã€ãƒ‘ーティション作æˆã€ãƒžã‚¦ãƒ³ãƒˆãªã©ï¼‰ - vorfee's Tech Blog
RaspberryPiã®ãŸã‚ã«Linuxã§ãƒ‡ã‚£ã‚¹ã‚¯ã®ã‚¤ãƒ¡ãƒ¼ã‚¸ãƒ•ã‚¡ã‚¤ãƒ«ã‚’編集ã™ã‚‹ã®ã«ä½¿ã†ã‘ã©ã™ãã«å¿˜ã‚Œã‚‹ã®ã§ãƒ¡ãƒ¢ã€‚ ã“ã®è¨˜äº‹ã§ã§ãã‚‹ã“㨠ディスクimageを一ã‹ã‚‰ä½œæˆã§ãã‚‹ æ—¢å˜ã®ãƒ‡ã‚£ã‚¹ã‚¯imgaeをマウントã§ãã‚‹ 1: 空ã®imageã‚’ä½œæˆ æ–¹æ³•1 - truncate truncateコマンドã§ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ä¸Šã«æŒ‡å®šã—ãŸã‚µã‚¤ã‚ºï¼ˆå˜ä½ã¯byte）ã®ç©ºãƒ•ã‚¡ã‚¤ãƒ«ã‚’作æˆã™ã‚‹ã€‚ # サイズãŒ2GiBã®imageã‚’ä½œæˆ $ truncate -s 2GiB image.img 上ã§ç¤ºã—ãŸé€šã‚Šã€ã‚µã‚¤ã‚ºã«ã¯æŽ¥é 辞をã¤ã‘ã‚‹ã“ã¨ãŒã§ãる。よã使ã†å˜ä½ã¯ä»¥ä¸‹ã®é€šã‚Šã€‚ 1024B = 1K ã¾ãŸã¯ 1KiB（ã‚ビãƒã‚¤ãƒˆï¼‰ 1024KB = 1M ã¾ãŸã¯ 1MiB（メビãƒã‚¤ãƒˆï¼‰ 1024MB = 1G ã¾ãŸã¯ 1GiB（ギビãƒã‚¤ãƒˆï¼‰ 1000B = 1KB（ã‚ãƒãƒã‚¤ãƒˆï¼‰ 1000KB = 1MB（メガãƒã‚¤ãƒˆï¼‰
xkeysnail - ã‚‚ã†ã²ã¨ã¤ã® Linux å‘ã‘ã‚ーリマッパ - Qiita
TL;DR Linux (X11) å‘ã‘ã®ã‚ーリマップツールをã¤ãã£ãŸ Python 3 ã§æ›¸ã‹ã‚Œã¦ãŠã‚Š sudo pip install xkeysnail ã§å…¥ã‚Œã‚‹ã“ã¨ãŒã§ãã‚‹ uinput ã¨ã„ㆠLinux ã®ä½Žãƒ¬ã‚¤ãƒ¤ API を利用ã—動作ã™ã‚‹ãŸã‚「多ãã®ã‚ーリマップツールã§ã¯ã†ã¾ãリマッピングãŒå‹•ã‹ãªã‹ã£ãŸå ´æ‰€ã€ã§ã‚‚動作ã™ã‚‹ アプリケーションã”ã¨ã«ã‚ーãƒã‚¤ãƒ³ãƒ‰ã‚’変ãˆãŸã‚Šã€è¤‡æ•°ã‚¹ãƒˆãƒãƒ¼ã‚¯ã®ã‚ーã«ã‚³ãƒžãƒ³ãƒ‰ã‚’割り当ã¦ãŸã‚Š Python ã®é–¢æ•°ã‚’ã‚ーã«å‰²ã‚Šå½“ã¦ãŸã‚Šã™ã‚‹ã“ã¨ã‚‚ã§ãã‚‹ 詳ã—ã㯠https://github.com/mooz/xkeysnail 㧠背景 Firefox ㌠Quantum ã«ãªã‚Šã€æ—§æ¥ã® XUL ベースã®ã‚¢ãƒ‰ã‚ªãƒ³ã¯å‹•ä½œã—ãªããªã£ãŸã€‚æ–°ãŸãªæ‹¡å¼µæ©Ÿèƒ½ã®æ©Ÿæ§‹ã§ã‚ã‚‹ WebExtensions ã§ã¯ã‚ーボードショートカットã«é–¢ã™ã‚‹ API ãŒå¤§å¹…ã«åˆ¶é™ã•ã‚Œã€ã¼ãã¯æ‹™
Ubuntu for GPD Pocket | Ubuntu for GPD Pocket
After I had recently trouble to find some time on merging the recent changes from Hans kernel into the GPD Pocket kernel repositories, I have finally been able to sort out the configuration issues and build a kernel that works properly. The old 4.13 based kernel already fixed USB-C support but at the same time broke support on bluetooth. The new kernel out (4.14.0-11.gpd) now fixes those bluetooth
GPD Pocket ã« Debian 9 をインストールã—ãŸæ™‚ã®ãƒ¡ãƒ¢
GPD Pocket 㯠GPD WIN ã®ã‚«ã‚¹ã‚¿ãƒ カーãƒãƒ«ãŒä½¿ãˆã‚‹ã‚ˆã†ã§ã™ï¼ˆã©ã®ç¨‹åº¦ä½¿ãˆã‚‹ã‹ã¯ä¸æ˜Žã§ã™ãŒâ€¦) https://wiki.archlinuxjp.org/index.php/GPD_Win ã«è¨˜è¼‰ã®ã‚る，Hans de Goede ã®ãƒ‘ッãƒãŒã‚ãŸã£ãŸã‚«ãƒ¼ãƒãƒ«ã®æƒ…å ±ã‚’å…ƒã«ï¼ŒGPD Pocket(GPD WIN)用ã®ã‚«ã‚¹ã‚¿ãƒ カーãƒãƒ«ã‚’ビルドã—ã¾ã™ï¼Ž ã“ã®ã‚«ã‚¹ã‚¿ãƒ カーãƒãƒ«ã®ãƒ“ルドã«æ¯è‰¦PC(Debian9)を使ã„ã¾ã™ï¼Žã¾ã，GPD Pocket ã§ã‚‚ã‚„ã£ã¦ã‚„ã‚Œãªãã¯ç„¡ã„ã¨ã¯æ€ã„ã¾ã™ãŒï¼Œæ™‚é–“ã‚’è¦ã™ã‚‹ã¨ã¯æ€ã„ã¾ã™ï¼Ž 以下ã¯ï¼Œæ¯è‰¦PCã§ä½œæ¥ã—ã¾ã™ï¼Ž # apt-get build-dep linux # apt-get install git fakeroot ã“ã‚Œã§ï¼Œã‚«ã‚¹ã‚¿ãƒ カーãƒãƒ«ã‚’ビルドã™ã‚‹ãŸã‚ã®ãƒ„ール類ãŒã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã¾ã™ï¼Ž 次ã«ï¼Œã‚«ã‚¹ã‚¿ãƒ カーãƒãƒ«ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’ git ã§
オープンソースã®è„†å¼±æ€§ã‚¹ã‚ャナ OpenVAS を使ã£ã¦ã¿ã‚‹ - CUBE SUGAR CONTAINER
今回ã¯ã‚ªãƒ¼ãƒ—ンソースã®è„†å¼±æ€§ã‚¹ã‚ャナã§ã‚ã‚‹ OpenVAS を使ã£ã¦ã¿ã‚‹ã“ã¨ã«ã™ã‚‹ã€‚ 脆弱性スã‚ャナã¨ã„ã†ã®ã¯ã€ãƒ›ã‚¹ãƒˆã«æ—¢çŸ¥ã®è„†å¼±æ€§ãŒå«ã¾ã‚Œãªã„ã‹ã©ã†ã‹ã‚’自動ã§ã‚¹ã‚ャンã—ã¦ãれるツール。 注æ„: 脆弱性スã‚ャンã¯ãƒãƒ¼ãƒˆã‚¹ã‚ャンやペãƒãƒˆãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’å«ã‚€ãŸã‚外部ã®ã‚µãƒ¼ãƒã«ã¯å®Ÿè¡Œã—ãªã„ã“㨠使ã£ãŸç’°å¢ƒã¯æ¬¡ã®é€šã‚Šã€‚OS 㯠Ubuntu 16.04 LTS ã«ã—ãŸã€‚ $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.3 LTS Release: 16.04 Codename: xenial $ uname -r 4.4.0-89-generic ã‚»ã‚ュリティ用途ã 㨠Kali Linux を使ã†ã“ã¨ã‚‚多ã„ã¿ãŸã„。 インストール Ubuntu 㧠OpenVA
Linux: When to use scatter/gather IO (readv, writev) vs a large buffer with fread
In scatter and gather (i.e. readv and writev), Linux reads into multiple buffers and writes from multiple buffers. If say, I have a vector of 3 buffers, I can use readv, OR I can use a single buffer, which is of combined size of 3 buffers and do fread. Hence, I am confused: For which cases should scatter/gather be used and when should a single large buffer be used?
VisUAL - A highly visual ARM emulator
Home User Guide Downloads About VisUAL has been developed as a cross-platform tool to make learning ARM Assembly language easier. In addition to emulating a subset of the ARM UAL instruction set, it provides visualisations of key concepts unique to assembly language programming and therefore helps make programming ARM assembly more accessible. It has been designed specifically to use as a teaching
Linux kernelã‚’ninjaã§ãƒ“ルドã™ã‚‹ - Gentoo metalog
ninjaã£ã¦ãªã« Ninja, a small build system with a focus on speed make代替ã¿ãŸã„ãªãƒ“ルドシステムã§, å°ã•ãã¦ã‚¹ãƒ”ードãŒé€Ÿã„ã®ãŒç‰¹å¾´ã¨ãªã£ã¦ã„ã‚‹. Chromiumã¨ã‹ã§ä½¿ã‚ã‚Œã¦ã„る様å. Makefileã‚’èªã‚ã‚‹ã‚ã‘ã§ã¯ãªã, ninja用ã®ãƒ“ルドファイルãŒå¿…è¦. kninja GitHub - rabinv/kninja: Ninja build file generator for the Linux kernel kninjaã¯Linux kernel用ã«kninjaã®ãƒ“ルドファイルを生æˆã—ã¦ãれるスクリプト. ã¯ã‚„ã„ã®? kninjaã«ã‚ˆã‚‹ãƒ«ãƒ¼ãƒ«ç”Ÿæˆã«ã¯kninja.pyを使ã†. ルール生æˆã®ãŸã‚ã«makeã—ã¦ã‹ã‚‰, “make -p"ã®æƒ…å ±ã‹ã‚‰ãƒ“ルドファイルを生æˆã™ã‚‹. ã—ãŸãŒã£ã¦, 下ã®ã‚ˆã†ã«ãƒ«ãƒ¼ãƒ«ç”Ÿæˆã¾ã§å…¥ã‚Œã‚‹ã¨1分
What is toybox?
About What is it? - About - Quick Start - Roadmap - Status - Help - FAQ - News - Youtube Why is it? video/outline Interview Download Git repo: github local Source tarballs Binaries System Images Compilers Development docs Design goals Source code walkthrough Cleanup Code of Conduct License Statistics Contact Mailing List IRC #toybox on libera.chat Commit RSS feed Maintainer's Blog Patreon Toybox c
Embedded Linux size reduction techniques
Embedded Linux Conference 2017 Embedded Linux size reduction techniques Michael Opdenacker free electrons [email protected] free electrons - Embedded Linux, kernel, drivers - Development, consulting, training and support. http://free-electrons.com 1/1 Michael Opdenacker â–¶ Michael Opdenacker â–¶ Founder and Embedded Linux engineer at free electrons â–¶ Embedded Linux expertise â–¶ Dev
eLinux.org
Welcome to the eLinux wiki! The purpose of this wiki is to preserve and present information about the development and use of Linux in embedded systems as well as open source projects and tools for general embedded development. To use this wiki, click on one of the portal links below. This site has slides, and links to videos, for many years of the Embedded Linux Conference and Japan Jamboree! See
DashAsBinSh - Ubuntu Wiki
Dash as /bin/sh In Ubuntu 6.10, the default system shell, /bin/sh, was changed to dash (the Debian Almquist Shell); previously it had been bash (the GNU Bourne-Again Shell). The same change will affect users of Ubuntu 6.06 LTS upgrading directly to Ubuntu 8.04 LTS. This document explains this change and what you should do if you encounter problems. The default login shell remains bash. Opening a t
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Debian Sources | Debian Sources
GitHub - Swordfish90/cool-retro-term: A good looking terminal emulator which mimics the old cathode display...
https://wtanaka.com/node/8187
GitHub - nexus511/gpd-ubuntu-packages: This repository shall provide the base for building ubuntu packages from most of the patches currently used to get linux on the gpd-pocket.
GitHub - cawilliamson/ansible-gpdpocket: Linux Installer for GPD Pocket
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