Ralf Corsepius wrote:
On Mon, 2005-11-21 at 17:14 +0100, Frédéric PRACA wrote:
Hi,
I'm currently trying to build an Ada cross compiler for ARM using the arm-rtems
target. I tried with GCC 4.0.2 and subversion-version but I failed.
What should I know to do this knowing that I already built the C and C++
cross-compilers ?
1. Replace your host compiler with the same version you want to build
cross (Ada requirement).
Definitely critical to any success.
2. The standard RTEMS toolchains are multilib'ed, Gnatlib in gcc-4.0.x
doesn't support multilibs
=> The only chance you have is to build a non-multilib'ed custom
RTEMS-GCC.
Instructions from Laurent Guerby are on the RTEMS Wiki.
http://www.rtems.com/wiki/index.php/RTEMSAda
3. GNAT from GCC < 4.0.2 did not support the arm. I haven't tried
gcc-4.0.2 and don't know if anybody has meanwhile added arm-support to
GNAT.
arm-rtems4.7 does build C, C++, and Ada on the gcc SVN head. I have
done no testing beyond that.
All in all, I think you've lost ... :(
Even if you get a compiler from the head to compile, the gnat tools
seem to misparse target names with a version in them. You would have to
compile for arm-rtems to even have a prayer.
Ralf
--joel
