Add nice new procedure for making a TBB system.

NB: This new procedure is largely untested at the moment.

1 files changed, 211 insertions, 0 deletions

diff --git a/temporary-bootstrap-builder-setup.txt b/temporary-bootstrap-builder-setup.txt
new file mode 100644
index 0000000..fda7a76
--- /dev/null
+++ b/temporary-bootstrap-builder-setup.txt
@@ -0,0 +1,211 @@
+ABOUT THIS GUIDE
+================
+
+This is a guide to building a custom BusyBox/Linux-libre system with the GNU
+toolchain.  It mostly follows Cross Linux From Scratch version
+SVN-0.0.1-20090726-x86, except that it uses more recent versions of software
+packages and uses a BusyBox-based userspace rather than a GNU-based one.  This
+guide assumes the use of a GNU/Linux host system with all the necessary
+development software (GCC, GNU Binutils, Subversion, etc.) already installed.
+
+It is recommended that you read Cross Linux From Scratch version
+SVN-0.0.1-20090726-x86 to understand the full build process and the rationale
+behind various elements of the setup.
+
+
+PROCEDURE
+=========
+
+Make a directory in which all work will be done.  Under this directory, make
+directories 'src' and sys':
+  $ mkdir src sys
+
+Download all of the necessary source archives and branches.
+  $ cd src
+  $ wget http://www.busybox.net/downloads/busybox-1.19.3.tar.bz2
+  $ wget http://www.fsfla.org/svnwiki/selibre/linux-libre/download/releases/\
+  > LATEST-3.1.N/linux-3.1.6-libre.tar.bz2
+  $ svn co svn://svn.eglibc.org/branches/eglibc-2_14 eglibc-2.14
+  $ wget http://ftp.gnu.org/gnu/gcc/gcc-4.6.2/gcc-4.6.2.tar.bz2
+  $ wget http://ftp.gnu.org/gnu/binutils/binutils-2.22.tar.bz2
+  $ wget http://ftp.gnu.org/gnu/make/make-3.82.tar.bz2
+  $ wget http://ftp.gnu.org/gnu/automake/automake-1.11.2.tar.bz2
+  $ wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.68.tar.bz2
+  $ wget http://ftp.gnu.org/gnu/m4/m4-1.4.16.tar.bz2
+  $ wget ftp://ftp.gmplib.org/pub/gmp-5.0.2/gmp-5.0.2.tar.bz2
+  $ wget http://www.mpfr.org/mpfr-current/mpfr-3.1.0.tar.bz2
+  $ wget http://www.multiprecision.org/mpc/download/mpc-0.9.tar.gz
+  $ for file in *.tar.bz2; do tar -xjf ${file}; done
+  $ for file in *.tar.gz; do tar -xzf ${file}; done
+  $ cd ..
+
+Make and mount the filesystem.  mkfs and mount must be run as the superuser, but
+dd shouldn't need to be.
+  $ cd sys
+  $ dd if=/dev/zero of=fs bs=1024 count=$((3*1024*1024))
+  # mkfs -t ext4 fs
+  $ mkdir fsmnt
+  # mount -o loop fs fsmnt
+
+Set up a new user.
+  # groupadd bbl
+  # useradd -s /bin/bash -g bbl -d /home/bbl bbl
+  # mkdir -pv /home/bbl
+  # chown -v bbl:bbl /home/bbl
+  # passwd bbl
+  # chown -Rv fsmnt
+
+Set up the toolchain work environment.  Be sure to change '<BASE_DIR>' to the
+absolute path to the base work directory you made earlier, and adjust the
+configuration name in BBL_TARGET if you're building for a different
+architecture.  We're using GNU Bash as the new user's default shell for
+convenience; this has no effect on the target system.
+  $ su - bbl
+  $ cat > ~/.bash_profile <<EOF
+  > exec env -i HOME="${HOME}" TERM="${TERM}" /bin/bash
+  > EOF
+  $ cat > ~/.bashrc <<EOF
+  > set +h
+  > umask 022
+  > BBL=<BASE_DIR>/sys/fsmnt
+  > LC_ALL=C
+  > PATH=${BBL}/cross-tools/bin:/bin:/usr/bin
+  > export BBL LC_ALL PATH
+  > PS1='$ '
+  > unset CFLAGS
+  > unset CXXFLAGS
+  > export BBL_HOST=$(echo ${MACHTYPE} | \
+  > sed "s/$(echo ${MACHTYPE} | cut -d - -f 2)/cross/")
+  > export BBL_TARGET=x86_64-pc-linux-gnu
+  > EOF
+  $ source ~/.bash_profile
+
+Make system directories.  These commands should give you a system that is
+compliant with Filesystem Hierarchy Standard version 2.3.  Note that the range
+syntax in many of these command lines is a non-standard feature of GNU Bash;
+this may not work on other shells.
+  $ mkdir -pv ${BBL}/bin
+  $ mkdir -pv ${BBL}/boot
+  $ mkdir -pv ${BBL}/dev
+  $ mkdir -pv ${BBL}/etc{,/opt}
+  $ mkdir -pv ${BBL}/home
+  $ mkdir -pv ${BBL}/lib
+  $ mkdir -pv ${BBL}/mnt
+  $ mkdir -pv ${BBL}/opt
+  $ mkdir -pv ${BBL}/proc
+  $ install -dv -m 0750 ${BBL}/root
+  $ mkdir -pv ${BBL}/sbin
+  $ mkdir -pv ${BBL}/srv
+  $ mkdir -pv ${BBL}/sys
+  $ install -dv -m 1777 ${BBL}{,/var}/tmp
+  $ mkdir -pv ${BBL}/usr/{,local/}{bin,include,lib,sbin,share/{man,misc},src}
+  $ mkdir -pv ${BBL}/usr/local/{etc,games}
+  $ mkdir -pv ${BBL}/usr/{,local/}share/{doc,info,locale,terminfo,zoneinfo}
+  $ mkdir -pv ${BBL}/usr/{,local/}share/man/man{1,2,3,4,5,6,7,8}
+  $ ln -sv share/man ${BBL}/usr/local/man
+  $ mkdir -pv ${BBL}/var/{cache,lib/misc,local,lock,log,mail,opt,run,spool}
+
+Write the passwd and group files.
+  $ cat > ${BBL}/etc/passwd <<EOF
+  > root::0:0:root:/root:/bin/bash
+  > EOF
+  $ cat > ${BBL}/etc/group <<EOF
+  > root:x:0:
+  > bin:x:1:
+  > sys:x:2:
+  > kmem:x:3:
+  > tty:x:4:
+  > tape:x:5:
+  > daemon:x:6:
+  > floppy:x:7:
+  > disk:x:8:
+  > lp:x:9:
+  > dialout:x:10:
+  > audio:x:11:
+  > video:x:12:
+  > utmp:x:13:
+  > usb:x:14:
+  > cdrom:x:15:
+  > EOF
+
+If CONFIG_FEATURE_UTMP and/or CONFIG_FEATURE_WTMP are enabled in BusyBox,
+certain BusyBox applets (getty, login, init, etc.) will log user logins to
+/var/run/utmp and/or /var/run/wtmp.  However, BusyBox's supporting library won't
+create /var/run/wtmp if it doesn't exist.  So create these files now and set
+proper modes for them.
+  $ touch ${BBL}/var/run/{u,w}tmp
+  $ chmod -v 664 ${BBL}/var/run/{u,w}tmp
+/var/run/utmp is used to track logged-in users.  /var/run/wtmp is used to record
+when users log into and out of the system.  NB: This is an odd location for
+wtmp, but that's where an unpatched BusyBox will expect it.
+
+Make and change to a directory for package source code.
+  $ mkdir -v ${BBL}/src
+  $ cd ${BBL}/src
+
+Install Linux's headers for use by EGLIBC.
+  $ cp -pR ${BBL}/../../src/linux-3.1.6 .
+  $ cd linux-3.1.6
+  $ make mrproper
+  $ make headers_check
+  $ make INSTALL_HDR_PATH=${BBL}/usr headers_install
+  $ find ${BBL}/usr/include/ -name .install -o -name ..install.cmd | \
+  > xargs rm -fv
+  $ cd ..
+  $ rm -Rf linux-3.1.6
+
+Install GMP for use by the cross-compiling GCC build.
+  $ cp -pR ${BBL}/../../src/gmp-5.0.2 .
+  $ cd gmp-5.0.2
+  $ CPPFLAGS=-fexceptions ./configure --prefix=${BBL}/cross-tools --enable-cxx
+  $ make
+  $ make install
+  $ cd ..
+  $ rm -Rf gmp-5.0.2
+
+Install MPFR for use by the cross-compiling GCC build.
+  $ cp -pR ${BBL}/../../src/mpfr-3.1.0 .
+  $ cd mpfr-3.1.0
+  $ LDFLAGS="-Wl,-rpath,${BBL}/cross-tools/lib" ./configure \
+  > --prefix=${BBL}/cross-tools --enable-shared --with-gmp=${BBL}/cross-tools
+  $ make
+  $ make install
+  $ cd ..
+  $ rm -Rf mpfr-3.1.0
+
+Install PPL for use by the cross-compiling GCC build.
+  $ cp -pR ${BBL}/../../src/ppl-FIXME .
+  $ cd ppl-FIXME
+  $ LDFLAGS="-Wl,-rpath,${BBL}/cross-tools/lib" ./configure \
+  > --prefix=${BBL}/cross-tools --enable-shared --enable-interfaces="c,cxx" \
+  > --disable-optimization --with-libgmp-prefix=${BBL}/cross-tools \
+  > --with-libgmpxx-prefix=${BBL}/cross-tools
+  $ make
+  $ make install
+  $ cd ..
+  $ rm -Rf ppl-FIXME
+
+Install CLooG-PPL for use by the cross-compiling GCC build.
+  $ cp -pR ${BBL}/../../src/FIXME .
+  $ cd FIXME
+  $ LDFLAGS="-Wl,-rpath,${BBL}/cross-tools/lib" ./configure \
+  > --prefix=${BBL}/cross-tools --enable-shared --with-bits=gmp \
+  > --with-gmp=${BBL}/cross-tools --with-ppl=${BBL}/cross-tools
+  $ make
+  $ make install
+  $ cd ..
+  $ rm -Rf FIXME
+
+Configure and build a cross-compiling GNU Binutils.
+  $ cp -pR ${BBL}/../../src/binutils-2.22 .
+  $ mkdir binutils-build
+  $ cd binutils-build
+  $ AR=ar AS=as ../binutils-2.22/configure --prefix=${BBL}/cross-tools \
+  > --host=${BBL_HOST} --target=${BBL_TARGET} --with-sysroot=${BBL} \
+  > --disable-nls --enable-shared --disable-multilib
+  $ make configure-host
+  $ make
+  $ make install
+  $ cp -v ../binutils-2.22/include/libiberty.h ${BBL}/usr/include
+  $ cd ..
+  $ rm -Rf binutils-2.22 binutils-build