Re: cross compiling issues

[Allan McRae]

On 05/02/10 22:17, Allan McRae wrote:
> Hi,
>
> I can cross-compile a minimum booting Hurd system but am running into 
> issues taking the system from there to something useful...
>
>
> Using gcc-4.4, I do not get a working C++ cross compiler. It gives 
> errors such as:
>
> <path>/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: 
> undefined reference to `__multf3'
> <path>/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: 
> undefined reference to `__fixunstfsi'
> <path>/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: 
> undefined reference to `__subtf3'
>
> This seems to be a known issue 
> (http://www.gnu.org/software/hurd/open_issues/gcc/c++.html), and I did 
> see some mention of it being fixed in Debian, but I can not find a 
> relevant patch.
>
>
> If I downgrade to gcc-4.3, I do not build a booting hurd.  The error 
> message is:
>
> Hurd server bootstrap: ext2fs.static[device:hd0s1] exec 
> initext2fs.static: boot-start.c:278: diskfs_start_bootstrap: 
> Unexpected error: No such file or directory.
>
> This is not the error from a missing /servers/exec (although 
> similar).  Apart from gcc headers, there is no file difference between 
> the gcc-4.4 and gcc-4.3 builds so that error message may be misleading...
>
>
> Any hints on how to fix either issue would be much appreciated.

A small bump on this as these issues have been driving me crazy for the
last week...

I tested the latest gcc-4.5 snapshot and it still has the c++
cross-compiler issues so I guess there is not a patch for that.

So any hints on what to look at for the "No such file or directory" boot
issue with gcc-4.3?

Thanks,
Allan