This is an old revision of
Crosscompiler from 2003-12-27 15:40:30.
Building a crosscompiler for sparc32 using a Debian/Linux box
This is how I did it, the result can be found in the
files section.
get the toolchain package
<![CDATA[apt-get install toolchain-source fakeroot automake1.4 dpkg-cross binutils-multiarch]]>
edit
/etc/dpkg/cross-compile:
<![CDATA[crossbase = /usr]]>
configure the toolchain
<![CDATA[cd /usr/src
EMAIL="someone@somedomain.com" tpkg-make sparc-linux]]>
NOTE: you have to have a valid gpg secret key, because the debian package requires gpg signing. Looking up your gpg key involves the GECOS field in your /etc/passwd entry, so make sure your GECOS matches your key.
create binutils
First screw up binutils, otherwise it will build
binutils-sparc-linux instead of
binutils-sparc:
edit debian/rules:
<![CDATA[...
PACKAGE=binutils-sparc
...]]>
edit debian/control:
<![CDATA[...
Source: binutils-sparc
...
Package: binutils-sparc]]>
cd binutils-sparc-linux-
version
debuild
debi
<![CDATA[**libc**
create and install the cross-dkpg'd SPARC packages.]]>
su -c "TPKG_SERVER=ftp.nl.debian.org tpkg-install-libc sparc-linux"
<![CDATA[by default, tpkg-install-libc will use the british debian server.
**make GCC**
The woody toolchain package presents a 3.* GCC version, which is not what we want. What we do want is GCC 2.95. How to do it? Simply read the fine manual:]]>
apt-get source gcc-2.95
cd gcc-2.95-2.95.4.ds13
less debian/README.cross
<![CDATA[Which reads about gcc:]]>
...
- Edit the file gcc-2.95-*/debian/rules.defs where it defines
TARGETS. Change this to 'TARGETS = ${target}'.
- In order to speed up the build process, disable the regression
tests. Search for 'with_check := disabled by hand' in
gcc-2.95-*/debian/rules.defs and uncomment it.
- In order to speed up the build process, disable building of the
Pascal compiler if you don't need it. Search for 'with_pascal
:= disabled by hand' in gcc-2.95-*/debian/rules.defs and uncomment
it.
The same thing can be done for the CHILL, Fortran and Java compilers.
- Build using 'dpkg-buildpackage -rfakeroot'. This will take a _long_
time, as it builds a bootstrap native compiler first, and also
builds the native packages.
%%
And this is simply why Debian is the best: for every complex task, there is a Debian way to solve it.