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.
Apply the patch to the LFS sources and run "make ARCH=multilib". If
leaving out the ARCH= parameter or set it to ARCH=default will produce
the book without any ML stuff in it.
Running thru the book created with ARCH=multilib will provide you a
system with m64, mx32 and m32 ABI.
The patch is based on the latest development LFS book (20180808), not
yet tested on the 8.3-rc1.
I had to split up building glibc in chapter 6 into two sections, the
"usual" build of 64-bit glibc and than the 32-bit glibc with having the
adjustment section in between. Otherwise i ran into the "glibc builds
endlessly"-issue.
Root directory gets a bit polluted by two additional dirs(symlinks)
named /lib32 and /libx32. I think there could be a way to avoid this
when diving deeper into the gcc-specs-stuff and such.
The patch also adds ISL as a new package. I'm not sure whether there is
a real dependency on that, I just included it as DJ did that in his ML-
book, too.
Whats missing:
* The kernel chapter should be enhanced with instructions to enable the
required emulation support.
* My building system has multilib support allready builtin. Need to
redo testing from a single-64bit-ABI-system to ensure that there are no
silent cross-references.
And finally:
I'm pretty sure that there are some bugs/flaws/whatever in the patch
(and the instructions it provides), consider the patch as an alpha
version. Please be invited to report bugs, provide tweaks, comments and
enhancements!
Yes, ML goes a bit beyond the basic educational approach of LFS but
there is still software out there (in my case a printer driver from
DELL) which is only provided as 32bit-binary and this renders a pure-
64bit LFS useless to some extend.
And big thanks to DJ, Nathan and William F. for their recent work on
multilib support!
So I finally got around to this as I had to do 32bit xorg libs to create
the i686 Java install. I realized, I had forgot to do expat 32bit libs
for fontconfig. Additionally, while I haven't confirmed, you probably
want sysvinit and sysklogd 32bit libs in the sysv book. Overall,
however, it looks really good! Excellent work!
--DJ
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