Re: SPARC Cross Compiler

[Kai Ruottu <kai dot ruottu at luukku dot com>]

David Dudley wrote:
> 
> Hey guys!
> 
> I need to build a sparc-rtems-elf cross compiler, hosted on a
> i586-pc-linux-elf host.
> 
> I configured the compiler with <configure --host=i586-pc-linux-elf
> --target=sparc-rtems-elf --with-newlib>
> 
> When I build the compiler with 'make cross', things go fine, till the end of
> stage1.  As soon as it tries to do 'stage2', the configure fails, with the
> fact that 'xcc can't build executables'.

 Some stupid questions...

 What puts you thinking that producing executables for the 'sparc-rtems-elf'
should be possible without any more options to define the target?  While the
'i586-pc-linux-elf' is a fully defined target, is the 'sparc-rtems-elf' too?
In your case I would experiment a little (I not knowing so much about RTEMS),
whether it has a standard API with 'syscalls'-like interface to the hardware
like Linux. Or does it need a 'glue library' for the target board like an
no-opsys embedded 'sparc-elf' would do...

 What do you mean with these 'stage1' and 'stage2'?  AFAIK they belong to the
build of a native-GCC, a cross-GCC build has only the 'stage1', unless one
calls the building/updating of the native-GCC to just the same version as the
'stage1' (never seen as necessary, I still use egcs-1.1.2 to build gcc-3.0.x).

> What's it trying to do, generating the stage2 compiler trying to use the
> target compiler, instead of the host?

 This error normally comes when configuring the target libraries, libiberty
and libobjc. When the '--with-newlib' should enable libiberty without any
C-library checking, my guess is libobjc...  Do you really need libobjc being
built just now before your base C-libraries are still unbuilt?

 So I will agree with David Thompson and suggest you to just install your GCC,
and toy with those "Hello World" apps after building and installing your C-
library. Later you can consider building the libiberty, libstdc++ and libobjc.
Perhaps the Java and Fortran-77 languages with their libs too...

 The 'project' you stated in your clause after the "Hello guys" is ready now,
so be happy and enjoy...

Cheers, Kai

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