On 30/09/2018 02:57, DJ Lucas wrote:
On 08/14/2018 05:54 AM, Thomas Trepl wrote:
Hi,
for those who are interested in doing {,B}LFS with multilib support,
here is a patch on the LFS book adding some instructions to build the
LFS core system with multilib support.
<snip>
Updates to this based on Thomas's work at https://io.ax.lt/. This is
still very much experimental but coming together nicely. I've been
working on jhalfs support. I also have a current patch for trunk (also
for Thomas's branch to allow building with jhalfs) and rendered copies
for both sysv and systemd in my homedir if anybody would like to take
a look:
http://www.linuxfromscratch.org/~dj/Multilib/
Thomas, when you are available, please note the changes WRT separating
the lib32 and libx32 with separate <sect2>s. This is required for
jhalfs to parse the files correctly. As to the other changes, in
additon to -m32/-mx32, I've tried to ensure that we use appropriate
-march flags where --host is invalid. None of this is tested
thoroughly as of yet, but my ultimate real world goal, in addition to
being able to run x86 binaries needed for various tasks, is to be able
to build x86 java without a full x86 LFS build handy. As of now,
jhalfs builds to completion on Systemd. I don't believe that I've made
any changes that would affect SysV, but I haven't tested sysv-multilib
just yet.
HTH
--DJ
DJ Lucas.
I have tried building your multilib sysV version I get a error in
building libcap-2.25 x32bit.
So far no problems upto here, I have restarted from ch6 a 2nd time
incase I made a mistake.
Error
libcap-2.25# make CC="gcc -mx32"
make -C libcap all
make[1]: Entering directory '/sources/libcap-2.25/libcap'
=> making cap_names.list.h from
/sources/libcap-2.25/libcap/../libcap/include/uapi/linux/capability.h
perl -e 'while ($l=<>) { if ($l =~ /^\#define[ \t](CAP[_A-Z]+)[
\t]+([0-9]+)\s+$/) { $tok=$1; $val=$2; $tok =~ tr/A-Z/a-z/; print
"{\"$tok\",$val},\n"; } }'
/sources/libcap-2.25/libcap/../libcap/include/uapi/linux/capability.h |
fgrep -v 0x > cap_names.list.h
gcc -mx32 -O2 -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC
-I/sources/libcap-2.25/libcap/../libcap/include/uapi
-I/sources/libcap-2.25/libcap/../libcap/include _makenames.c -o _makenames
./_makenames > cap_names.h
/bin/sh: ./_makenames: cannot execute binary file: Exec format error
make[1]: *** [Makefile:41: cap_names.h] Error 126
make[1]: Leaving directory '/sources/libcap-2.25/libcap'
make: *** [Makefile:12: all] Error 2
I have no idea how to check what is wrong. If this error could stem back
to ch5 then ok.
Both of the other parts built fine from libcap
--
http://lists.linuxfromscratch.org/listinfo/lfs-dev
FAQ: http://www.linuxfromscratch.org/faq/
Unsubscribe: See the above information page
