On 30/07/2014 14:40, Armin K. wrote:
> On 07/30/2014 03:39 PM, Armin K. wrote:
>> On 07/30/2014 01:49 PM, Anthony Wright wrote:
>>> I've successfully built a 64 bit LFS 7.5-systemd installation. I'm
>>> trying to build a series of packages on top of that, and one of the
>>> packages needs a 32 bit version of glibc in addition to the 64 bit
>>> version of glibc (it fails trying to include /usr/include/gnu/stubs-32.h).
>>>
>>> Using a distro such as Ubuntu I can apt-get a 32 bit glibc, so I know
>>> it's possible to have the 64 and 32 bits version of glibc co-existing,
>>> but I can't work out how to build a 32 bit version of glibc on a clean
>>> 64 bit version of LFS.
>>>
>>> I've tried following the glibc instructions in chapter 6 and then
>>> modifying the configure to:
>>>
>>> ../glibc-2.19/configure \
>>> --prefix=/usr \
>>> --disable-profile \
>>> --enable-kernel=2.6.32 \
>>> --enable-obsolete-rpc \
>>> --host=i686-linux-gnu \
>>> CC="gcc -m32" \
>>> CXX="g++ -m32"
>>>
>>> Unfortunately it runs for quite a while and then fails with the
>>> following output:
>>>
>>> a - elf/dl-sym.os
>>> a - elf/dl-tsd.os
>>> a - elf/unwind-dw2-fde-glibc.os
>>> a - elf/framestate.os
>>> a - elf/unwind-pe.os
>>> gcc -m32 -nostdlib -nostartfiles -r -o
>>> /xx/glibc-build/elf/librtld.map.o '-Wl,-('
>>> /xx/glibc-build/elf/dl-allobjs.os /xx/glibc-build/libc_pic.a -lgcc
>>> '-Wl,-)' -Wl,-Map,/xx/glibc-build/elf/librtld.mapT
>>> /usr/bin/ld: skipping incompatible
>>> /usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.2/libgcc.a when searching for
>>> -lgcc
>>> /usr/bin/ld: cannot find -lgcc
>>> collect2: error: ld returned 1 exit status
>>> Makefile:286: recipe for target '/xx/glibc-build/elf/librtld.map' failed
>>> make[2]: *** [/xx/glibc-build/elf/librtld.map] Error 1
>>> make[2]: Leaving directory '/xx/glibc-2.19/elf'
>>> Makefile:213: recipe for target 'elf/subdir_lib' failed
>>> make[1]: *** [elf/subdir_lib] Error 2
>>> make[1]: Leaving directory '/xx/glibc-2.19'
>>> Makefile:9: recipe for target 'all' failed
>>> make: *** [all] Error 2
>>>
>>> I also wondered about editting the LFS book to build a 32 bit glibc just
>>> after the 64 bit glibc has been built so that hopefully the tools which
>>> seem to be missing above would be available.
>>>
>>> Any suggestions would be appreciate.
>>>
>>> thanks,
>>>
>>> Anthony.
>> Try this: www.linuxfromscratch.org/~krejzi/glibc 32 bit.txt
> FYI, this should be on a single line since I was too lazy to rename a
> file not to include spaces. Or you could just omit the file bit and
> select it, there is no index file.
>
>> You need a 32 bit capable compiler to build 32 bit glibc. I achieve that
>> by installing a cross-gcc in /usr/gcc, then building a 32 bit glibc
>> using that compiler. I believe the instructions are for gcc-4.8.x, but
>> can be adjusted for 4.9.x by adjusting the switches from gcc pass1 in
>> LFS (without --disable-multilib).
Thanks for the link, it's been very helpful. You seem to be rebuilding
binutils and gcc with multilib enabled, before building glibc. Do you
think it would be possible to simply modify the original LFS 7.5-systemd
book, to enable multilib on binutils & gcc before building both a 64 bit
and 32 bit version of glibc?
Anthony
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