[Xorp-users] Cross-Compilation PPC Architecture patches

[Pavlin Radoslavov]

Scher, Dave <dscher at mitre.org> wrote:

> I am trying to cross-compile xorp for a ppc platform.  The build notes
> indicate that there may be a patch required to successfully
> cross-compile; but I cannot find the patch in the release 1.4 archive.
> 
>  
> Also without using the patch I received the following error when
> building the CLI:
>  
> ld: normal_obj/getline.o: Relocations in generic ELF (EM:  20)
> normal_obj/getline.o: could not read symbols: File in wrong format
>  
> I configured xorp using the following: 
> ./configure --host=powerpc-linux  --prefix=$CROSS_LOCATION/usr/include
> --with-openssl=$CROSS_LOCATION/usr
>  
> The issue, I believe, is linking of cross arch. and native specific
> objects.  Not sure if anyone has run into this specific issue.  Since I
> have not yet applied the patch, I was wondering if this error is patch
> specific.  
>  
> Any clues?

It looks like that the cli/libtecla library wasn't compiled with the
right compiler (or most likely the linker itself is the wrong one).

There are several environmental variables that should be set before
running ./configure. See file BUILD_NOTES (in the XORP top-level
directory), Section "3.8. Cross-compilation". Pay special attention
to step h) which describes the XORP cross-compilation environment.
Setting variable "LD" for example is needed to point to the right
cross-compilation linker.

Please let me know how it goes.

Regards,
Pavlin

P.S. Option "--prefix=..." when running ./configure is used to
specify the directory to install XORP. I doubt you want to install
it in the "$CROSS_LOCATION/usr/include" header directory.

P.P.S. Which cross-compilation patch are you referring to?
All patches mentioned in the "Cross-compilation" section refer to
installing the cross-compilation environment, and each patch itself
is included inline.