# Buildroot
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> Markdown URL: https://mediated.wiki/source/Buildroot.md
> Source: https://en.wikipedia.org/wiki/Buildroot
> Source revision: 1342156699
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)
{{Short description|Tool for building Linux}}
{{Use mdy dates|date=December 2014}}
{{Infobox software
| name = Buildroot
| title = Buildroot
| logo = Buildroot logo.png
| logo size = 120px
| logo caption =
| logo alt = A yellow hardhat, similar to those used by construction workers
| screenshot =
| caption =
| collapsible =
| author =
| developer = Peter Korsgaard and others
| released = {{Start date and age|2005|01|12}}[{{cite web
| url = https://buildroot.org/downloads/old/
| title = Old Buildroot downloads (index of /downloads/old)
| access-date = August 16, 2015
| website = buildroot.org
}}]
| latest release version = {{wikidata|property|preferred|references|edit|Q1003023|P348|P548=Q2804309}}
| latest release date = {{wikidata|qualifier|preferred|single|Q1003023|P348|P548=Q2804309|P577}}
| programming language = [Make](/source/Make_(software)), [shell](/source/List_of_command-line_interpreters) and [C](/source/C_(programming_language))
| operating system = [Linux](/source/Linux)
| platform = [Embedded Linux](/source/Embedded_Linux)
| size = {{Nowrap|6.2 MB}}
| genre = [Build automation](/source/Build_automation)
| license = [GNU GPL](/source/GNU_GPL) version 2 or later
}}
'''Buildroot''' is a set of [Makefile](/source/Makefile) and [patch](/source/Patch_(Unix)) [files](/source/file_(computing)) that [automates the process of building](/source/build_automation) [Linux](/source/Linux)-based system [software](/source/software) for an [embedded system](/source/embedded_system), including [cross-compiling](/source/Cross_compiler) to a target platform that differs from the build system. Buildroot can build a cross-compilation [toolchain](/source/toolchain), a [root file system](/source/root_file_system), a [Linux kernel](/source/Linux_kernel) image, and a [boot loader](/source/boot_loader).[{{cite magazine
| url = http://www.linuxjournal.com/article/10795
| title = Roll Your Own Embedded Linux System with Buildroot
| date = August 31, 2011 | access-date = December 18, 2014
| author = Alexander Sirotkin | magazine = [Linux Journal](/source/Linux_Journal)
}}][{{cite web
| url = http://buildroot.org/about.html
| title = Buildroot: Making embedded Linux easy
| access-date = December 18, 2014
| website = buildroot.org
| url-status = dead
| archive-url = https://web.archive.org/web/20141218125412/http://www.buildroot.org/about.html
| archive-date = December 18, 2014
| df = mdy-all
}}][{{cite web
| url = http://buildroot.org/downloads/manual/manual.pdf
| title = The Buildroot User Manual
| date = December 1, 2014 | access-date = December 18, 2014
| website = buildroot.org }}]{{rp|2–3,10–12}}[{{cite web
| url = https://lwn.net/Articles/384713/
| title = Tools and distributions for embedded Linux development
| date = April 27, 2010 | access-date = August 16, 2015
| author = Tom Parkin | publisher = [LWN.net](/source/LWN.net)
}}]
Buildroot supports multiple [computer](/source/computer_architectures) and [instruction set](/source/instruction_set_architecture) architectures including [x86](/source/x86), [ARM](/source/ARM_architecture), [MIPS](/source/MIPS_architecture), [PowerPC](/source/PowerPC) and [RISC-V](/source/RISC-V).[{{Cite web |title=Buildroot: what's new? - Embedded Linux Conference |url=https://bootlin.com/pub/conferences/2022/elc/petazzoni-buildroot-whats-new/petazzoni-buildroot-whats-new.pdf|date=2022|access-date=October 2, 2023 |website=bootlin.com}}] Buildroot comes with configurations for several off-the-shelf embedded boards, such as [Cubieboard](/source/Cubieboard), [Raspberry Pi](/source/Raspberry%26nbsp%3BPi) and [SheevaPlug](/source/SheevaPlug).[{{cite web
| url = http://git.buildroot.net/buildroot/plain/CHANGES?id=2014.11
| title = Buildroot's changelog (CHANGES file)
| date = December 1, 2014 | access-date = December 18, 2014
| website = git.buildroot.net
}}][{{cite web
| url = http://elinux.org/images/2/23/Buildroot-whats-new-elce2013.pdf
| title = Buildroot: What's new?
| date = October 26, 2013 | access-date = December 18, 2014
| author = Peter Korsgaard | website = elinux.org
}}]{{rp|25}} Several third-party projects and products use Buildroot as the basis for their build systems, including the [OpenWrt](/source/OpenWrt) project that creates an [embedded operating system](/source/embedded_operating_system), and [firmware](/source/firmware) for the [customer-premises equipment](/source/customer-premises_equipment) (CPE) used by the [Google Fiber](/source/Google_Fiber) broadband service.[{{cite web
| url = http://wiki.openwrt.org/about/toolchain
| title = OpenWrt Buildroot – About
| date = December 6, 2014 | access-date = December 18, 2014
| website = openwrt.org
}}]
Multiple [C standard library](/source/C_standard_library) variants are supported, including the [GNU C Library](/source/GNU_C_Library), [uClibc](/source/uClibc) and [musl](/source/musl), as well as those belonging to various preconfigured development environments, such as [Linaro](/source/Linaro). Buildroot's build configuration system internally uses [Kconfig](/source/Kconfig) (which is part of the Linux codebase), to provide features such as a menu-driven interface, handling of [dependencies](/source/Dependency_(computer_science)), and [contextual help](/source/contextual_help). Buildroot is organized as multiple, automatically downloaded [packages](/source/Package_(package_management_system)), which contain the [source code](/source/source_code) of various [userspace](/source/userspace) applications, system utilities, and [libraries](/source/Library_(computing)). Root file system images, which are the final results, may be built using various [file system](/source/file_system)s, including [EROFS](/source/EROFS), [cramfs](/source/cramfs), [JFFS2](/source/JFFS2), [romfs](/source/romfs), [SquashFS](/source/SquashFS) and [UBIFS](/source/UBIFS).[{{cite web
| url = http://www.at91.com/linux4sam/bin/view/Linux4SAM/BuildRoot
| title = Linux4SAM: BuildRoot
| date = July 15, 2013 | access-date = August 16, 2015
| website = at91.com
}}]
Buildroot is [free and open-source software](/source/free_and_open-source_software), maintained by Peter Korsgaard and licensed under version 2 or later of the [GNU General Public License](/source/GNU_General_Public_License) (GPL).