Re: Building Native ToolChain (SH3)

[Kai Ruottu <karuottu at mbnet dot fi>]

Kristoffer Ericson kirjoitti:
> Greetings,
>
> Here is my progress so far, in building a native sh3 compiler (by using
> CrossTool), hope this helps:
>
> Binutils-2.16
> -------------
> ../configure --host=sh3-unknown-linux-gnu --build=i686 --prefix=""

 You have never heard that native tools use the "--prefix=/usr" ?

> Glibc-2.3.5
> ------------
> BUILD_CC=gcc CFLAGS=-O CC=sh3-unknown-linux-gnu-gcc AR=sh3-unknown-linux-gnu-ar
> RANLIB=sh3-unknown-linux-gnu-ranlib ../../sourcedir/glibc-2.3.5/.configure
> --build=i686 --host=sh3-unknown-linux-gnu --enable-kernel=2.4.3 --without-cvs
> --disable-profile --disable-debug --without-gd --without-tls --without-__thread
> --enable-shared --enable-add-ons=linuxthreads
> --without-headers=/opt/crosstool/gcc-3.4.4-glibc-2.3.5/sh3-unknown-linux-gnu/sh3-unknown-linux-gnu/include
> --without-fp

 Where on earth is your "--prefix=/usr" ?

 When producing a totally normal glibc for Linux, one must use this
$prefix ALWAYS ! It doesn't matter if the GCC which will use it is a
native or a cross compiler because glibc will be built only once, for
both the native and for all the cross hosts...

> make LD=sh3-unknown-linux-gnu-ld RANLIB=sh3-unknown-linux-gnu-ranlib
> make install_root=/tempdir install

 Are you claiming that you built glibc another time?  And are not simply
copying the already built glibc made for the cross-GCC ?

 The '/tempdir/lib', '/tempdir/usr/lib', '/tempdir/usr/include', ie. the
stuff below '/tempdir' should be the "glibc" you are using with your
cross-GCC, almost a 1:1 image for the glibc required on the native
system (three or so minor differences due to the crosscompiling
needs)...

> GCC-3.4.4
> ---------
> CFLAGS=-O CC=sh3-unknown-linux-gnu-gcc NM=sh3-unknown-linux-gnu-nm
> AR=sh3-unknown-linux-gnu-ar ./configure --host=sh3-unknown-linux-gnu
> --build=i686 --enable-languages=c,c++ --prefix=/

 Again, USE the "--prefix=/usr" when producing anything "native" !!!!

> make DESTDIR=/tempdir install

 OK ...

> Notes: Setting Optimization to -O otherwise getting assembler problems.
> Adding additional languages makes the compilation fail, also make bootstrap.

 The 'make bootstrap' means compiling first with the proprietary non-GNU
native 'cc', then with the GCC produced with the proprietary 'cc' and
finally with the GCC produced with the GCC produced with the proprietary
native 'cc'... Why you think that you would require something as 
complicated as this?

> This leaves me with one error left, when it tries to compile something it
> complains about not finding crt1.o (its in /lib). Changing stuff in ld.so..conf
> doesnt help. Any Ideas?

 Just learn to build native tools ! Please practice your skills with
producing native tools for the $build system, 'i686-linux-gnu', and
you soon will learn that one must always use the "--prefix=/usr"....

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