C++ support in DSLINUX

[Amadeus]

OK,

I think this is a mojor place of work now...

I have used the rtest program (user/rtest) to have a simple c++ test 
program.

I have ironed out the correct placement of the C++ include directories 
in the common config.arch file, and I have included the c++ libs for 
the linker in ucfront.c. 

Now it's possible to compile C++ programs with $CXX $CXXFLAGS
and link C++ programs with $CXX.

But if you want to run the programs, I have noted the following 
problems:

a) a C++ program, only main and no c++ features, will load and run.

b) a C++ program, using classes, will load, but gives a "data abort" at 
address 0x1d. (rtest)

c) a C++ program, using iostream, will not load - relocation out of 
range.

Some other notes:
- omitting the -fpic flags will not work in the RAM/RAMDEVEL build, 
because there is a code generator error which is not fixed. hmmmpf.

- trying to use shared libs does not work.

- if I compile and link rtest, in the code there are references to strb, 
which comes out of the c++ compiler libs. So there is a toolchain build 
problem with the multilibs and mswp-byte-writes.

Ruling from the number of postings to mailing lists, c++ support in 
uCLinux is a problem by itself. I was not able to find a toolchain 
which claims to _work_ for all special cases (pic, multilib, flat).

So I think we have to iron this out with our current environment. 
Anybody care to help? This is getting tough.

regards
Amadeus
-- 
We're back to the times when men were men 
and wrote their own device drivers.

(Linus Torvalds)