I am trying to cross compile a simple "Hello World"
use app. I have the rpms (obtained from sgi site ) for
binutils-mipsel-linux-2.8.1-2 and
egcs-mipsel-linux-1.1.2-4 installed. I first started
using redhat 6.1 available on the sgi website and
extracted the glibc libraries from
glibc-2.0.6-5lm.mipsel.rpm
glibc-devel-2.0.6-5lm.mipsel.rpm
to
/usr/mipsel-linux/lib &
/usr/mipsel-linux/include
When I compile my little test app using the following
it compiles OK and when executed on the MIPS target it
prints out "Hello World" on cue.
mipsel-linux-gcc -o hello hello.c
I wanted to use the redhat 7.0 distribution on sgi, so
I backed up the include and lib directories of
/usr/mipsel-linux and cleaned them out, then extracted
the redhat 7.0 glibc libraries. I then compiled the
same hello user app, but this time the app won't even
link and gives me the error :
/usr/mipsel-linux/bin/ld:
/usr/mipsel-linux/lib/libc.so.6: __libc_enable_secure:
invalid version 6 (max 5)
/usr/mipsel-linux/lib/libc.so.6: could not read
symbols: Bad value
Note, I hand edit /usr/mipsel-linux/lib/libc.so to
reflect the path to /usr/mipsel-linux instead of /lib
and /usr/lib.
Note if I go back to the backed up dirs I can still
compile hello.c.
I used the following files to extarct the glibc
libraries :
glibc-2.2.2-1.mipsel.rpm
glibc-common-2.2.2-1.mipsel.rpm
I use the following simple script to extract libraries
in both cases :
--start script---
mkdir tmp
cd tmp
# fileone=glibc-2.0.6-5lm.mipsel.rpm
# filetwo=glibc-devel-2.0.6-5lm.mipsel.rpm
fileone=glibc-2.2.2-1.mipsel.rpm
filetwo=glibc-devel-2.2.2-1.mipsel.rpm
rpm2cpio ../$fileone | cpio --extract
--make-directories
rpm2cpio ../$filetwo | cpio --extract
--make-directories
cp -a usr/include /usr/mipsel-linux
cp -a lib/* /usr/mipsel-linux/lib
cp -a usr/lib/* /usr/mipsel-linux/lib
cd ../
rm -fr tmp
cd /usr/mipsel-linux/lib
ls -l | grep "../../lib" | sed 's|../../lib/||' | awk
'{print "ln -sf", $11, $9 }' | tee fixit
sh fixit
rm fixit
--- end of simple script ---
So that's what I am doing, and I would really
appreciate if anyone on the list could answer my
questions :
1, To cross compile target apps for redhat7.0, I do
really need to cross compile against the glibc-2.2.2
libraries don't I ? Could I get away with compiling
against the glibc-2.0.6 libraries ?
2, Has anyone managed to cross compile user apps
against redhat 7.0 ? If so how did you do it ? Please
give details.
3, Can anyone see anything wrong in what I have done
and if so, can you tell me what and where ?
TIA
Wayne
__________________________________________________
Do You Yahoo!?
Yahoo! Sports - Coverage of the 2002 Olympic Games
http://sports.yahoo.com
