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{{Infobox OS
| name = eCos
| logo = [[File:ECos logo.png|eCos]]
| developer = eCos community, [[自由软件基金会]]
| source_model = [[开放源代码]]
| supported_platforms = [[ARM architecture|ARM]], [[CalmRISC]], [[ARM Cortex-A5|Cortex-A5]], [[ARM Cortex-A9|Cortex-A9]], [[ARM Cortex-M3|Cortex-M3]], [[ARM Cortex-M4|Cortex-M4]], [[ARM Cortex-M7|Cortex-M7]], [[FR-V]], [[Hitachi H8]], [[IA-32]], [[Motorola 68000]], [[Matsushita AM3x]], [[MIPS architecture|MIPS]], [[NEC V8xx]], [[Nios II]], [[PowerPC]], [[SPARC]], and [[SuperH]]
| family = [[实时操作系统]]
| released = {{Start date and age|1998|09}}
| marketing_target = [[嵌入式系统]]
| programmed_in = [[C语言|C]], [[C++]], [[汇编语言]]
| working_state = 支援中
| license = eCos License: [[GNU General Public License]] (with [[GPL linking exception|linking exception]])<ref>{{cite web |author=eCos official website |title=eCos License Overview |url=http://ecos.sourceware.org/license-overview.html |quote=eCos is released under a modified version of the well known GNU General Public License (GPL). |accessdate=2009-06-22 |archive-date=2009-06-04 |archive-url=https://web.archive.org/web/20090604182309/http://ecos.sourceware.org/license-overview.html |dead-url=no }}</ref>
| website = {{URL|http://ecos.sourceware.org/}}
}}

== 系统简介 ==
'''eCos'''（embedded configurable operating system）是一個在1997年由Cygnus Solutions Inc.<ref>{{cite web |author=eCosCentric website |title=eCos Timeline |url=http://www.ecoscentric.com/ecos/timeline.shtml |quote=eCos was conceived and initially developed by , who initiated the project in February 1997. |accessdate=2015-07-01 |archive-date=2015-07-02 |archive-url=https://web.archive.org/web/20150702015817/http://www.ecoscentric.com/ecos/timeline.shtml |dead-url=no }}</ref>开发的小型[[开放原始码]][[实时操作系统]]。后来该公司被[[Redhat]]收购。在2002年的早些时候<ref>{{cite news|title=Red Hat backs away from eCos?|publisher=linuxdevices.com|date=2002-06-19|url=http://www.linuxdevices.com/news/NS5933176616.html|accessdate=2007-04-01|deadurl=yes|archiveurl=https://web.archive.org/web/20070416105502/http://www.linuxdevices.com/news/NS5933176616.html|archivedate=2007-04-16|df=}}</ref>，[[Redhat]]停止了eCos开发，并解散了开发队伍。很多原开发者继续开发eCos，并且成立了他们自己的公司来为该软件提供服务。迫于开发者的要求，Redhat在2004年一月份将eCos的版权转移给了[[自由软件基金会]]<ref>{{cite press release|title=Red Hat to contribute copyrights held in the eCos code base to the Free Software Foundation|publisher=Red Hat|date=2004-01-13|url=http://www.redhat.com/about/news/press-archive/2004/1/press-ecos|access-date=2018-09-30|archive-date=2014-07-15|archive-url=https://web.archive.org/web/20140715191423/http://www.redhat.com/about/news/press-archive/2004/1/press-ecos|dead-url=no}}</ref>，并于2008年5月份最终完成了版权转移。

此系统和[[嵌入式]][[Linux]]系统的差异是它采用静态链接[[(static library)]]的方式，最低编译核心可小至10K的级别，适合用于做[[bootloader]]增强，或者用于构建微小型系统。
eCos的发行版还包括[[RedBoot]]，一个[[开放原始码]]的[[应用程序]]。它使用[[硬件抽象层]]提供[[嵌入式系统]]的启动[[固件]]。

除了自由版本以外，eCos还有一个称为'''eCosPro'''的商业版本。它是eCos的一个商业分支，由[[eCosCentric]]开发，并包含有私有组件。它是稳定并经过测试和认证的版本<ref>{{cite press release|title=eCosCentric announces eCosPro Developer's Kit|publisher=OSNews|date=2003-09-02|url=http://www.osnews.com/story.php?news_id=4395|accessdate=2007-03-31|archive-date=2003-12-30|archive-url=https://web.archive.org/web/20031230072402/http://osnews.com/story.php?news_id=4395|dead-url=no}}</ref>。在2017年，2017, eCosCentric发布了<ref>{{Cite web|url=http://www.ecoscentric.com/news/press-170314.shtml|title=eCosPro Industrial Strength RTOS for the Raspberry Pi announced|website=www.ecoscentric.com|access-date=2017-03-15|archive-date=2017-03-16|archive-url=https://web.archive.org/web/20170316113109/http://www.ecoscentric.com/news/press-170314.shtml|dead-url=no}}</ref>对于全部树莓派单板计算机的eCos移植，并同时发布了这些移植的自由版本。

== 支持架构 ==
eCos可以在一系列平台上运行，包括如下架构：
* [[ARM architecture|ARM]]
* [[CalmRISC]]
* [[FR-V]]
* [[Hitachi H8]]
* [[IA-32]]
* [[Motorola 68000]]
* [[Matsushita AM3x]]
* [[MIPS architecture|MIPS]]
* [[NEC V8xx]]
* [[Nios II]]
* [[PowerPC]]
* [[SPARC]]
* [[SuperH]]

== 外部連結 ==
* [http://ecos.sourceware.org/ eCos主站点（偏重代码升级类）]{{Wayback|url=http://ecos.sourceware.org/ |date=20090319050701 }}{{en}}
* [http://www.ecoscentric.com/ eCos主站点（偏重宣传，业内新闻类，解决方案的全套供应等）]{{Wayback|url=http://www.ecoscentric.com/ |date=20090307031754 }}{{en}}

== 相关书籍 ==
* 《嵌入式可配置实时操作系统eCos软件开发》，作者：(美) Anthony J.Massa 译者：颜若麟孙晓明尤伟伟林巧民
* 《嵌入式可配置实时操作系统eCos技术及实现机制》，作者：王京起等

== 参考文献 ==
{{reflist|2}}

{{Real-time operating systems}}

[[Category:实时操作系统]]
[[Category:自由作業系統]]
[[Category:嵌入式操作系统]]
[[Category:ARM操作系统]]
[[Category:MIPS作業系統]]

ECOS - 版本历史

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imported>Taeas：维护清理