Date: Wed, 10 Jun 1998 20:09:22 -0400 From: "Stephane E. Potvin" <sepotvin@videotron.ca> To: Jason <jes@hal-pc.org> Cc: freebsd-current@FreeBSD.ORG Subject: Re: ELF preparation step 2 done Message-ID: <357F2032.E8540881@videotron.ca> References: <01bd9495$ef551350$016f6f6f@jason.vipersystems.com>
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Jason wrote:
>
> >The & of all Evil wrote:
> >> "Brian Feldman" <brianfeldman@hotmail.com> writes:
> >>
> >> > Well, after making world and having all /usr/libexec/{elf,aout}, I
> guess one could make an ELF world in a couple steps, if they're interested:
> >> > 1. export BINFORMAT=elf and make usr.bin/objformat, and make install it
> >> > 2. go to lib/, 'echo "BINFORMAT=elf" > /etc/objectformat' and make all
> the libs, and install them (to /usr/lib? mine installed there, I moved them
> to /usr/lib/elf, should the elf libs really be there or just /usr/lib?)
> >> > 3. make the world; it _should_ work now, but I didn't try it
> > ^^^^^^^^^^^^^^^^^^^
> >Obviously.
> >
> >>
> >> singularity:/usr/src/lib 14# make all
> >> ===> libcom_err
> >> cc -O -pipe -c /usr/src/lib/libcom_err/com_err.c -o com_err.o
> >> Unrecognized line in /etc/objectformat: BINFORMAT=elf
> >> Unrecognized line in /etc/objectformat: BINFORMAT=elf
> >> com_err.o: file not recognized: File format not recognized
> >
> >A few things (not necessarily all) you need to do:
> >
> >1. Make world to get aout and elf tools (built as aout executables) in
> > their new places and objformat installed in /usr/bin.
> >2. chflags -R noschg /usr/obj/usr/src/tmp
> >3. rm -rf /usr/obj/*
> >4. Create /etc/objectformat with the line OBJFORMAT=elf
> >5. Add BINFORMAT=elf to /etc/make.conf
> >6. cd /usr/src/csu/i386-elf; make obj/depend/all/install
> >7. cd /usr/src/gnu/usr.bin/cc/libgcc; make obj/depend/all/install
> >8. cd /usr/src/lib/libc; make obj/depend/all/install
> >9. cd /usr/src/libexec/rtld-elf; make obj/depend/all/install
> >10. cd /usr/src/lib; make obj/depend/all/install
> >11. cd /usr/src/gnu/lib; make obj/depend/all/install
> >12. cd /usr/src; make obj/depend/all/install
> >
> >I have tried this. Step 12 bombs in src/gnu/usr.bin/ld.
>
> The big problem is make.conf isn't included soon enough to get the
> BINFORMAT=elf, instead it relies on test mostly of
>
> .if ${MACHINE} == "alpha"
> BINFORMAT?= elf
> .else
> BINFORMAT?= aout
> .endif
>
> This is also why when building elf libraries that they are installed by
> default into /usr/lib/aout. Can you say bad magic number?
>
> This needs to be fixed to get an elf machine with a buildworld/makeworld.
>
> One work around maybe to go into your src/share/mk directory and at the top
> of each makefile put a BINFORMAT=elf just to be shure.
>
> -Jason-
An easier way is to include make.conf before bsd.own.mk in sys.mk
I don't know if it breaks something else in the build environment as I
didn't
get any response from the list or the PR I sent but it had been working
fine
for me so far.
Stephane
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