zhongweiy / rtems-scripts Goto Github PK

This is from: 
http://taste.tuxfamily.org/wiki/index.php?title=RTEMSBuild
I've updated it to my env.

Handy scripts for RTEMS
=======================

This is a set of script used to recompile RTEMS, tested with RTEMS 4.8
and 4.11.

---------------------------------------------------------------------------
IMPORTANT NOTICE:
-----------------

Before you start, make sure that the GCC you use has support for C and
Ada, and that its major revision is 4.(x-1) if you need to build 4.x.

It worked for building GCC 4.6.3 using gcc 4.7.1 on archlinux, but this is
not guaranteed.

---------------------------------------------------------------------------

Here is the procedure

1/ Create a MANIFEST file that stores the links to the source files

   A default MANIFEST_rtems_4.8 is provided, with links to RTEMS
   source for RTEMS 4.8.

2/ Source rtems.env file

   A default rtems_4.8.env is provided, with links to RTEMS
   source for RTEMS 4.8.

3/ Fetch all sources:

   ./fetch_rtems_source.sh

3/ Install autoconf and automake

   ./build_autoconf.sh
   ./build_automake.sh

4/ Install binutils, note this script will recompile binutils for all
   architectures

   ./build_binutils_rtems.sh 

5/ Compile GCC for native platform, note this requires a gcc with an
   Ada front-end. Also, it is recommended to use the same release to 
   avoid bootstrap issues.

   Note: for GCC 4.6.x and above, it is required to install GMP, MPFR
   and MPC in this order:

   ./build_gmp.sh
   ./build_mpfr.sh
   ./build_mpc.sh

   ./build_gcc_native.sh

   If you experience issue with crti.o, please read
   http://askubuntu.com/questions/75116/how-do-you-build-older-gcc-versions-errors-about-crti-o-not-being-found
   and the note 1819 on TASTE bugtrack
   http://taste.tuxfamily.org/mantis/view.php?id=281#c1819

6/ Compile GCC for cross-platform, only the C front-end and newlib

   ./build_gcc_rtems_c_only.sh

7/ Build RTEMS

Note that now, RTEMS has to be built _before_ gnat, see comment in
gsocket.c, otherwise, the Ada RTS cannot be built because of a missing
sys/socket.h header file

/*
 * RTEMS has these .h files but not until you have built and installed
 * RTEMS. When building a C/C++ toolset, you also build the newlib C library.
 * So the build procedure for an RTEMS GNAT toolset requires that
 * you build a C/C++ toolset, then build and install RTEMS with 
 * --enable-multilib, and finally build the Ada part of the toolset.
 */

Warning, you have to adjust this script to position the RTEMS source directory
Also, you have to keep --enable-multilib to install GNAT in the next step

   ./build_rtems.sh


8/ Compile GCC for cross-platform, all front-ends

   ./build_gcc_rtems.sh

9/ Build gdb for cross-platform

   ./build_gdb.sh