cross compiling EPICS and 
   building IOC Applications for cris architectures 
      (linux-cris_v10, linux-cris_v32)
======================================================================

Please mail questions, comments, corrections, etc. ...
to P.Zumbruch@gsi.de
November 2007

Tools needed
------------
 
 o Axis SDK
    - Overview:
      http://developer.axis.com/wiki/doku.php?id=axis:sdk
    - Download:
      http://www.axis.com/products/dev_sdk/download_dist.php
    - Install HOWTO:
      http://developer.axis.com/wiki/doku.php?id=axis:software_distribution_install_howto 
  o Axis GNU gcc release for cross compiling
    - Download:
      http://www.axis.com/products/dev_sdk/download_compiler.php
    - Install HOWTO:
      http://developer.axis.com/wiki/doku.php?id=axis:compiler_install
 
Environment
-----------

 o CRIS_CROSS_COMPILER 
    - path to top directory of cris cross compiler, 
      where binaries are in sub directory bin/
    - if not set, the make process will stop at place 
      UNDEFINED_ENV__CRIS_CROSS_COMPILER 
 o AXIS_TOP_DIR?=UNDEFINED_ENV__AXIS_TOP_DIR
    - path to axis SDK top directory
    - if not set compile and link commands will contain references to
      UNDEFINED_ENV__AXIS_TOP_DIR
    - to set the necessary variables, execute 
      . ./init_env 
      in the top directory of the SDK	provided here.
 o CRIS_COMPILER_DEBUG
    - if defined symbols won't be stripped of 
      resulting in comparably large files

Building
--------

 o Edit the CONFIG_SITE files
    - CONFIG_SITE.linux-x86.Common: 
       for CROSS_COMPILER_TARGET_ARCHS += linux-cris_v10 
       for CROSS_COMPILER_TARGET_ARCHS += linux-cris_v32
    - optionally CONFIG_SITE.linux-x86.linux-cris
       for setting CRIS_CROSS_COMPILER
    - optionally create CONFIG_SITE.linux-x86.linux-cris_v10
    - optionally create CONFIG_SITE.linux-x86.linux-cris_v32
 o "make".

Shared Libraries
----------------

Generating shared libraries is not supported.


Please feel free to contact me if you
encounter serious problems.

Peter