View source for Green Hills Software

{{Short description|American software company}}
{{primary sources|date=May 2016}}
{{Use mdy dates|date=November 2013}}
{{Infobox company
| name = Green Hills Software Inc.
| logo = GREEN-HILLS Software.png
| logo_caption = 
| type = [[Private company|Private]]
| industry = [[Embedded system]] software tools
| founded = {{Start date and age|1982}}
| founders = {{Unbulleted list|Dan O'Dowd<!--Do not link to same name sports figure.-->| Carl Rosenberg}}
| hq_location_city = [[Santa Barbara, California]]
| hq_location_country = United States
| key_people = Dan O'Dowd, president
| products = {{Unbulleted list|[[Operating system]]s|[[Programming tool]]s}}
| num_employees = 
| num_employees_year = <!-- Year of num_employees data (if known) -->
| website = {{URL|www.ghs.com}}
}}
'''Green Hills Software''' is a privately owned company that builds [[operating system]]s and [[programming tool]]s for [[embedded system]]s.<ref name="Hoover's">{{cite book |date=2007 |url=http://images.hoovers.com/images/i/books/HPC07.pdf |title=Hoover's Handbook of Private Companies 2007 |chapter=Green Hills Software |page=222 |publisher=[[Hoover's]] |access-date=November 26, 2013 |archive-date=August 1, 2020 |archive-url=https://web.archive.org/web/20200801080452/http://images.hoovers.com/images/i/books/HPC07.pdf |url-status=dead }}</ref><ref>{{cite journal |last=Plauger |first=P.J. |date=December 1997 |url=http://www.dsi.fceia.unr.edu.ar/downloads/informatica/info_II/c++/ec++.pdf |title=Embedded C++: An Overview |journal=Embedded Systems Programming |via=fceia.unr.edu.ar |access-date=November 26, 2013}}</ref> The firm was founded in 1982 by Dan O'Dowd and Carl Rosenberg. Its headquarters are in [[Santa Barbara, California]].<ref>{{Cite book |author=<!-- Unstated: staff writers. --> |date=2007-01-01 |url=https://books.google.com/books?id=p1yYKDcu0boC&q=%22Green+Hills+Software%22 |title=Hoover's Handbook of Private Companies |publisher=Hoover's Business Press |isbn=9781573111157 |language=en}}</ref>

==History==
In the 1990s, Green Hills Software and [[Wind River Systems]], both makers of embedded system software development tools, entered into a 99-year agreement to cooperatively support customers using products from both companies. The agreement was terminated after a lawsuit in 2005. After parting ways, Wind River publicly embraced [[Linux]] and [[open-source software]] while Green Hills initiated a public relations campaign decrying the use of open-source software in projects related to national security.<ref name="Hoover's"/>

In 2008, the Green Hills [[real-time operating system]] (RTOS) named [[Integrity (operating system)|Integrity-178]]<!--Do not WP:ALLCAPS.-->  was the first system to be certified by the [[National Information Assurance Partnership]] (NIAP), composed of [[National Security Agency]] (NSA) and [[National Institute of Standards and Technology]] (NIST), to [[Evaluation Assurance Level]] (EAL) 6+.<ref name="Reuters20140225"/><ref name="CM20081119"/>

In November 2008, it was announced that a commercialized version of Integrity 178-B would be offered to the private sector by Integrity Global Security, a subsidiary of Green Hills Software.<ref name="CM20081119">{{cite news
|last=Racicot |first=Jonathan
| date = November 19, 2008
| url = https://cyberwarfaremag.wordpress.com/tag/evaluation-assurance-level/
| title = Integrity OS to be Released Commercially
| work = Cyberwarfare Magazine}}</ref>{{Better source|date=December 2015}}

On March 27, 2012, a contract was announced between Green Hills Software and [[Nintendo]]. This designates MULTI as the official [[integrated development environment]] and toolchain for Nintendo and its licensed developers to program the [[Wii U]] [[video game console]].<ref name="Nintendo GHS press release">{{cite press release |title=Green Hills Software's MULTI Integrated Development Environment Selected by Nintendo for Wii U Development |url=http://www.ghs.com/news/20120327_ESC_Nintendo_WiiU.html |location=San Jose, CA |date=March 27, 2012 |publisher=Green Hills Software |access-date=June 27, 2014}}</ref>{{Secondary source needed|date=December 2015}}

On February 25, 2014, it was announced that the operating system Integrity had been chosen by Urban Aeronautics for their AirMule [[flying car]] [[unmanned aerial vehicle]] (UAV), since renamed the [[Tactical Robotics Cormorant]].<ref name="Reuters20140225">{{Citation
| url = https://www.reuters.com/article/2014/02/25/idUSnMKWJJlSma+1f4+MKW20140225
| archive-url = https://web.archive.org/web/20140903102121/http://www.reuters.com/article/2014/02/25/idUSnMKWJJlSma+1f4+MKW20140225
| url-status = dead
| archive-date = September 3, 2014
| title = Green Hills Software Integrity RTOS chosen by Urban Aeronautics for AirMule Unmanned Aerial System
| publisher = Reuters
| date = February 25, 2014}}</ref>{{Secondary source needed|date=December 2015}}

== Selected products ==

=== Real-time operating systems ===
[[Integrity (operating system)|Integrity]]<!--Do not WP:ALLCAPS.--> is a [[POSIX]] [[real-time operating system]] (RTOS). An Integrity variant, named Integrity-178B, was certified to [[Common Criteria]] [[Evaluation Assurance Level]] (EAL) 6+, High Robustness in November 2008.<ref>{{cite web|url=https://www.niap-ccevs.org/vpl/index.cfm?tech_name=Operating+System |title=Validated Products List |publisher=[[National Information Assurance Partnership]] |access-date=November 26, 2013}}</ref>
Micro Velosity (stylized as ''μ-velOSity'') is a real-time [[microkernel]] for resource-constrained devices.<ref>{{cite news |last=Wilson |first=Richard |date=July 22, 2015 |title=Green Hills secures its RTOS for IoT |publisher=Electronics Weekly |url=http://www.electronicsweekly.com/uncategorised/green-hills-secures-rtos-for-iot-2015-07/ |access-date=December 29, 2015}}</ref><ref>{{cite news |last=Tångring |first=Jan |date=April 10, 2006 |url=http://www.etn.se/19373 |title=Green Hills Releases New Operating System |publisher=Elektroniktidningen |language=sv |access-date=November 26, 2013}}</ref>

=== Compilers ===
Green Hills produces [[compiler]]s for the programming languages [[C (programming language)|C]], [[C++]], [[Fortran]], and [[Ada (programming language)|Ada]]. They are [[cross-platform]], for [[32-bit computing|32-]] and [[64-bit computing|64-bit]] [[microprocessor]]s, including [[RISC-V]], [[ARM architecture|ARM]], [[Blackfin]], [[ColdFire]], [[MIPS architecture|MIPS]], [[PowerPC]], [[SuperH]], StarCore, [[x86]], [[V850]], and [[XScale]].<ref name="OC">[http://www.ghs.com/products/compiler.html "Green Hills Optimizing Compilers"]. Green Hills Software.</ref><ref>[https://www.ghs.com/news/20220118_NSITEXE_risc-v_partner.html "NSITEXE and Green Hills Software Partner on RISC-V Solutions"]. Green Hills Software.</ref>
{{Secondary source needed|date=December 2015}}<ref>{{Cite web |last=Wilson |first=Richard |date=2016-08-18 |title=Green Hills certifies RTOS for avionics computers |url=https://www.electronicsweekly.com/market-sectors/military-aerospace-electronics/green-hills-certifies-rtos-avionics-computers-2016-08/ |access-date=2023-07-17 |website=Electronics Weekly |language=en}}</ref>

=== Integrated development environments ===
MULTI is an [[integrated development environment]] (IDE) for the programming languages [[C (programming language)|C]], [[C++]], [[Embedded C++]] (EC++), and [[Ada (programming language)|Ada]], aimed at embedded engineers.<ref>[http://www.ghs.com/products/MULTI_IDE.html "MULTI Integrated Development Environment"] Green Hills Software.</ref>{{Secondary source needed|date=December 2015}}

TimeMachine  is a set of tools for optimizing and debugging C and C++ software.<ref>{{cite magazine |last=Lindahl |first=Michael |date=January 2005 |title=Using Trace to Debug Realtime Systems |url=http://www.acumeninfo.com/eprints/5510ghs.html |url-status=dead |archive-url=https://web.archive.org/web/20070929133932/http://www.acumeninfo.com/eprints/5510ghs.html |archive-date=September 29, 2007 |magazine=[[Dr. Dobb's Journal]]}}<!-- Tutorial "Using" by company employee, as clearly identified in the article, published in an independent publication with editorial discretion. --></ref><ref>{{cite web |last=Krass |first=Peter |date=July 18, 2006 |url=http://www.dso.com/blog/dsoblog/archives/2006/07/green_hills_exp.html |title=Green Hills Expands TimeMachine Support Options |publisher=Device Software Optimization blog|archive-url=https://web.archive.org/web/20080513064729/http://www.dso.com/blog/dsoblog/archives/2006/07/green_hills_exp.html |archive-date=May 13, 2008}}</ref> TimeMachine (introduced 2003) supports [[reverse debugging]],<ref>{{cite news |author=<!-- Unstated --> |date=November 6, 2003 |url=https://www.eetimes.com/timemachine-enables-debugging-forward-and-backward-in-time/ |title=TimeMachine enables debugging forward and backward in time |work=[[EE Times]]}}</ref> a feature that later also became available in the free [[GNU Debugger]] (GDB) 7.0 (2009).<ref>{{cite news |first=Joel |last=Brobecker |date=October 8, 2009 |url=https://lwn.net/Articles/356044/ |title=GDB 7.0 released |work=LWN.net |publisher=Eklektix |access-date=2013-12-02}}</ref>

==References==
{{Reflist}}

{{Microkernel}}

[[Category:Software companies based in California]]
[[Category:Software companies established in 1982]]
[[Category:1982 establishments in California]]
[[Category:Companies based in Santa Barbara, California]]
[[Category:Microkernels]]
[[Category:Privately held companies based in California]]