OS Abstraction Layer release

[Alan Cudmore]

RTEMS users:
I thought I would pass along the release of one of our projects,  
since it is RTEMS related. In short the OS Abstraction Layer is a  
library that allows a portable embedded application to run on  
multiple different OSs, including RTEMS.

The details are included below, the code is available at: http:// 
opensource.gsfc.nasa.gov

Thanks,
Alan

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NASA has released version 2.0 of the Operating System Abstraction  
Layer (OSAL) Project.  The OSAL provides generic real time operating  
system interfaces for the creation of portable real time embedded  
applications. By using the OSAL interfaces, a portable application  
can be re-compiled and run on multiple real time and desktop  
operating systems. The OSAL includes a core set of real time  
operating system services, a file system abstraction, and port I/O /  
memory interfaces.

Version 2.0 of the Operating System Abstraction Layer provides  
implementations for vxWorks, RTEMS, Linux/Cygwin, and Mac OS X. The  
distribution also contains an example application, test programs, API  
documentation, and a makefile system. New operating systems,  
processor architectures, and target boards can be added to the  
distribution.

The first version of the OSAL library is being used on the Solar  
Dynamics Observatory ( http://sdo.gsfc.nasa.gov ) where it enables  
portable flight software to be compiled for the RAD750 Processor  
running the vxWorks real time operating system and the RH5208  
Coldfire processor running the RTEMS real time operating system.  The  
OSAL is also used to prototype and develop new flight software on  
Linux and Mac OS X desktop computers.

The OSAL Project ( OSAL ) is open source software developed by NASA  
Goddard Space Flight Center's Flight Software Branch. It is available  
at the Goddard Space Flight Center's Open Source Web Site. http:// 
opensource.gsfc.nasa.gov