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Argonne National Laboratory

Experimental Physics and
Industrial Control System


This is the main core of EPICS, comprising the build system and tools, common and OS-interface libraries, Channel Access client and server libraries, static and run-time database access routines, the database processing code, and standard record, device and driver support.

Bug and Vulnerability Reporting

Bugs discovered in EPICS Base can be reported via email to the tech-talk mailing list, or can be filed directly into the Launchpad bug tracker. Private reporting of a security vulnerability can be achieved by filing a Private Security issue through the Launchpad bug tracker.

Code Management

Since early 2010 the EPICS Base source code has been managed using the Bazaar version control software, hosted at Launchpad.net. We also use Launchpad for bug tracking, and to a slightly lesser extent for planning new features. A mirror of the code repositories for git users is available on Github.

Contributions to EPICS Base are welcome, and can be accepted using the Launchpad.net code review process, or by sending patches to the core-talk mailing list. Some hints on getting started can be found on these wiki pages. Potential contributors should understand the implications of code portability to the different operating systems that we have to support, and are advised to discuss significant developments with the core development team before starting to work to avoid duplication or wasted effort.


There are several different versions of Base that are still in use at the various EPICS sites. Separate pages provide information relating to each major release; the differences between minor release versions are covered within the relevent major release page.

Operating System Hints

If you are using vxWorks 6.x, look at the vxWorks 6.x page for help on configuring and patching vxWorks for use with EPICS. The Tornado page provides help for vxWorks 5.x/Tornado 2 users. Look at the Tornado 2.2 and Linux page for building vxWorks 5.5 code on a Linux host. The Power PC page was written for sites upgrading from MC680x0 CPUs.

The RTEMS page provides some pointers to information about the host and target support available for that operating system. Several EPICS sites are now working seriously with this operating system. Eric Norum's Getting started with EPICS on RTEMS tutorial provides a step by step guide for newcomers.

The MS Windows page gives pointers to the different tools and compilers both commercial and free (as in beer) that are used to build EPICS on Microsoft Windows systems.

Development Statistics

The Ohloh.net website monitors the EPICS Base project.

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