Re: Cross Compiling Joys, Woes, and Insanity

[Dan Kegel <dank at kegel dot com>]

Kumba wrote:
>     As indicated by my subject, particularly the last word, I am 
> beginning to wonder if I am losing my mind or not while trying to devise 
> a script to build a cross-compiler toolchain.  Now I know there are many 
> such scripts out there, most notably the one done by Dan Kegel.  

I certainly came close to losing my mind while writing my script,
so your experience corelates well with mine :-)

> The
> purpose of my script, however, is to try and integrate itself a little 
> bit with Gentoo's portage system, and for the most part, the script 
> works flawlessly.  ...
>     Now I have been testing my script by attempting to compile an 
> i686-pc-linux-gnu -> mips-unknown-linux-gnu cross-compiler.  About 
> halfway, maybe more through glibc, I get the following error:
>
> /home/crossdev/mips/lib/gcc-lib/mips-unknown-linux-gnu/3.3.2/../../../../mips-unknown-linux-gnu/bin/ld:/usr/obj/portage/crossdevbuild/glibc-2.3.2/buildhere/shlib.lds:220: 
> syntax error
>
> Line #220 of shlib.lds reads the following:
> /home/crossdev/mips/lib/gcc-lib/mips-unknown-linux-gnu/3.3.2/../../../../mips-unknown-linux-gnu/bin/ld: 
> cannot open crti.o: No such file or directory

Hmm.  Other people have occasionally run into problems like this, see e.g.
http://www.x86-64.org/lists/discuss/msg03853.html
ooh, and this one:
http://mail.gnu.org/archive/html/bug-glibc/2003-07/msg00076.html
which says
"This indicates an interesting little build problem with current glibc,
as it would appear that you can't build a shared glibc without already
having glibc installed (crti.o is part of glibc).  A likely workaround
is to first build glibc with --disable-shared, install, then rebuild."

No idea if that's accurate, or why I never ran into it.

In any case, it would probably be a good idea for you to
understand how shlib.lds is generated, and what it's for...
- Dan

--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045


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