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HelenOS is a microkernel-based multiserver operating system designed from scratch. It decomposes key operating system functionality into many isolated, intensively communicating server processes that reside entirely in user space. HelenOS thus provides a computing environment that has several virtues, such as flexibility, increased robustness, well defined explicit interfaces and reduced complexity of individual components as compared to other operating systems. HelenOS runs on seven different processor architectures, ranging from a 32-bit uniprocessor little-endian ARMv4 to a 64-bit multicore big-endian UltraSPARC T1.

Code Analysis


Recent Highlights

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Large commit — Merge renaming and other improvements.

More than 1000 lines of source code were added or removed in this commit.

In commit /p/helenos/commits/178362586 by Jiri Svoboda on 2012-05-15 (7 days ago)

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Large commit — Rename app/locinfo to app/loc, srv/loc to srv/l...

More than 1000 lines of source code were added or removed in this commit.

In commit /p/helenos/commits/178362582 by Jiri Svoboda on 2012-05-13 (10 days ago)

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Large commit — Rename app/inetcfg to app/inet, srv/inet to srv...

More than 1000 lines of source code were added or removed in this commit.

In commit /p/helenos/commits/178362581 by Jiri Svoboda on 2012-05-13 (10 days ago)

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Large commit — Merge mainline changes.

More than 1000 lines of source code were added or removed in this commit.

In commit /p/helenos/commits/177492191 by Jakub Jermar on 2012-05-05 (18 days ago)

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Large commit — Merge mainline changes

More than 1000 lines of source code were added or removed in this commit.

In commit /p/helenos/commits/178731978 by Vojtech Horky on 2012-04-20 (about 1 month ago)

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News

GSoC students announced!

We are very pleased to announce the five GSoC students who will be working on HelenOS projects this summer:

Vivek Prakash: Port GNU Compiler Collection (gcc) to HelenOS
Sean Bartell: Structured binary data tools
Adam Hraška: ... [More] Resizable, scalable, concurrent hash-table
Julia G. Medvedeva: UDF file system server
Tobias Börtitz: HelenOS as a Genode platform

We wish Vivek, Sean, Adam, Julia and Tobias the best luck and are looking forward to all the new exciting contributions they will bring.

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GSoC 2012 applications are in

The GSoC 2012 student application period is now over. We would like to thank all the students for submitting their applications, for sending their patches to our mailing list and discussing their proposals.

For your information, please see ... [More] below a graph of applications against time plotted using the spreadsheet by Olly Betts. You can use it to compare the trend with other GSoC 2012 mentoring organizations. [Less]


HelenOS is a Google Summer of Code 2012 mentoring organization!

After making a very successful Google Summer of Code debut last year, we are pleased to announce that HelenOS has been accepted as a mentoring organization for 2012 again. In the Google Summer of Code, university and college students work during the ... [More] summer break and contribute code to open source projects represented by the accepted mentoring organizations. During the duration of the program, Google provides stipends to successful students that sum up to $5000 at the end of the program.

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HelenOS at Microkernel Devroom @ FOSDEM 2012

The HelenOS team is organizing the Microkernel OS Devroom at FOSDEM 2012. If you are interested in hearing what is new not only in the world of HelenOS, but also other state-of-the-art microkernel operating systems, consider visiting FOSDEM 2012 in Brussels from February 4th to 5th.


PCC and binutils screencast

Petr Koupý created a HelenOS screencast showing his and Jiří Zárevúcky's progress on porting parts of binutils and pcc to HelenOS. Both Petr an Jiří work on HelenOS as part of their Google Summer of Code internship. It's just shortly after the ... [More] program's midterm, but the video already shows that their version of HelenOS can build a playable tetris binary from sources - something which was not possible until now. [Less]


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