1 changed files with 303 additions and 0 deletions
@ -0,0 +1,303 @@ |
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# vim:set ft=sh: |
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|
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git clone --depth=1 --recursive https://github.com/fosslinux/live-bootstrap |
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cd live-bootstrap |
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./download-distfiles.sh |
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./rootfs.py -c --external-sources --cores $(nproc) |
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umount target/dev/shm # double mounted? |
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umount target/dev/shm target/sys target/proc target/tmp |
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|
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# Optional: back up the system |
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env -i chroot target tar --sort=name -cf /target.tar / |
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env -i chroot target bzip2 -9v /target.tar |
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|
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# Goal: |
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# install cross compiler in /cross |
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# cross compiled system in /gentoo |
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|
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mount -t proc proc target/proc |
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mount -t sysfs sysfs target/sys |
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mount -t devtmpfs devtmpfs target/dev |
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mount -t devpts devpts target/dev/pts |
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env -i chroot target |
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source /steps/env |
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cd /tmp |
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|
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curl -LO https://github.com/ninja-build/ninja/archive/v1.11.1/ninja-1.11.1.tar.gz |
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curl -LO https://github.com/mesonbuild/meson/releases/download/1.4.1/meson-1.4.1.tar.gz |
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curl -LO http://gitweb.gentoo.org/proj/portage.git/snapshot/portage-3.0.65.tar.bz2 |
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curl -LO https://github.com/plougher/squashfs-tools/archive/refs/tags/4.6.1/squashfs-tools-4.6.1.tar.gz |
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curl -LO http://distfiles.gentoo.org/snapshots/squashfs/gentoo-20240729.xz.sqfs |
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|
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cat > portage.patch << 'EOF' |
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+++ b/lib/portage/util/compression_probe.py |
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@@ -1,13 +1,13 @@ |
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# Copyright 2015-2020 Gentoo Authors |
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# Distributed under the terms of the GNU General Public License v2 |
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|
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-import ctypes |
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import errno |
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import re |
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|
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|
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from portage import _encodings, _unicode_encode |
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from portage.exception import FileNotFound, PermissionDenied |
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+from portage.util._ctypes import ctypes |
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|
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_compressors = { |
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"bzip2": { |
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@@ -49,7 +49,7 @@ _compressors = { |
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# if the current architecture can support it, which is true when |
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# sizeof(long) is at least 8 bytes. |
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"decompress": "zstd -d" |
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- + (" --long=31" if ctypes.sizeof(ctypes.c_long) >= 8 else ""), |
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+ + (" --long=31" if ctypes and ctypes.sizeof(ctypes.c_long) >= 8 else ""), |
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"package": "app-arch/zstd", |
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}, |
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} |
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EOF |
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|
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tar xf ninja-1.11.1.tar.gz |
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cd ninja-1.11.1 |
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./configure.py --bootstrap |
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install -m755 ninja /usr/bin |
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cd .. |
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rm -rf ninja-1.11.1 |
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|
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tar xf meson-1.4.1.tar.gz |
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cd meson-1.4.1 |
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python setup.py install |
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cd .. |
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rm -rf meson-1.4.1 |
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|
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tar xf portage-3.0.65.tar.bz2 |
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cd portage-3.0.65 |
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patch -p1 -i ../portage.patch |
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meson setup build --prefix /usr |
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meson install -C build |
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cd .. |
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rm -rf portage-3.0.65 |
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|
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tar xf squashfs-tools-4.6.1.tar.gz |
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cd squashfs-tools-4.6.1 |
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make -C squashfs-tools install \ |
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INSTALL_PREFIX=/usr \ |
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XZ_SUPPORT=1 |
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cd .. |
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rm -rf squashfs-tools-4.6.1 |
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|
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unsquashfs gentoo-20240729.xz.sqfs |
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mkdir -p /var/db/repos |
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rm -rf /var/db/repos/gentoo |
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mv squashfs-root /var/db/repos/gentoo |
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|
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# Configure portage |
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echo 'portage:x:250:250:portage:/var/tmp/portage:/bin/false' >> /etc/passwd |
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echo 'portage::250:portage' >> /etc/group |
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|
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mkdir -p /etc/portage/make.profile |
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cat > /etc/portage/make.profile/make.defaults << 'EOF' |
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FEATURES="-news -sandbox -usersandbox -pid-sandbox -parallel-fetch" |
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BINPKG_COMPRESS="bzip2" |
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ARCH="x86" |
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ABI="$ARCH" |
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DEFAULT_ABI="$ARCH" |
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ACCEPT_KEYWORDS="$ARCH" |
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CHOST="i386-unknown-linux-musl" |
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LIBDIR_x86="lib/i386-unknown-linux-musl" |
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PKG_CONFIG_PATH="/usr/lib/i386-unknown-linux-musl/pkgconfig" |
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PYTHON_COMPAT_OVERRIDE="python3_11" |
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IUSE_IMPLICIT="kernel_linux elibc_glibc elibc_musl prefix prefix-guest" |
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USE="kernel_linux elibc_musl python_targets_python3_11" |
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EOF |
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|
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# Install extra dependencies |
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FETCHCOMMAND="curl -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
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FETCHCOMMAND="$FETCHCOMMAND" MAKEOPTS=-j1 emerge -O1 dev-build/make |
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FETCHCOMMAND="$FETCHCOMMAND" emerge -O1 app-arch/lzip |
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FETCHCOMMAND="$FETCHCOMMAND" emerge -O1 net-misc/wget |
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|
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# Fix "find" warnings in emerge |
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emerge -O1 sys-apps/findutils |
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|
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# Set up python for dev-build/meson-format-array |
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py=python3.11 |
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mkdir -p /usr/lib/python-exec/$py |
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ln -sv python3 /usr/lib/python-exec/$py/python |
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ln -svr /usr/bin/$py /usr/lib/python-exec/$py/python3 |
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emerge -O1 dev-lang/python-exec |
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|
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# Allow stripping binaries by installing "scanelf" |
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emerge -O1 dev-build/meson-format-array |
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emerge -O1 app-misc/pax-utils |
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|
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# Install tooling around autoconf/automake for sys-devel/binutils and sys-devel/gcc |
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emerge -O1 sys-devel/gnuconfig sys-apps/gentoo-functions app-portage/elt-patches sys-devel/binutils-config sys-devel/gcc-config |
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|
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# Install rsync for sys-kernel/linux-headers |
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emerge -O1 dev-build/autoconf dev-build/autoconf-wrapper |
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emerge -O1 dev-build/automake dev-build/automake-wrapper |
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emerge -O1 net-misc/rsync |
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|
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# Set up cross compiler |
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mkdir -p /cross/etc/portage |
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ln -sf /etc/portage/make.profile /cross/etc/portage/make.profile |
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cat > /cross/etc/portage/make.conf << 'EOF' |
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USE="prefix multilib" |
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CTARGET="x86_64-bootstrap-linux-gnu" |
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LIBDIR_x86="lib" |
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LIBDIR_amd64="lib64" |
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DEFAULT_ABI="amd64" |
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MULTILIB_ABIS="amd64 x86" |
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EOF |
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mkdir -p /cross/etc/portage/env/sys-devel |
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cat > /cross/etc/portage/env/sys-devel/gcc << 'EOF' |
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EXTRA_ECONF='--with-sysroot=$EPREFIX/usr/$CTARGET' |
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EOF |
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cat > /cross/etc/portage/package.use << 'EOF' |
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sys-devel/gcc -sanitize |
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EOF |
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#EXTRA_EMAKE='MAKE=make MAKE+=libsuffix=../lib64' |
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|
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# Set path for emerge builds |
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cat > /etc/env.d/50baselayout << 'EOF' |
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PATH=/cross/usr/bin:/usr/bin |
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ROOTPATH=/cross/usr/bin:/usr/bin |
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EOF |
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env-update |
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|
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# TODO: Build sys-libs/glibc in /gentoo instead, to avoid extra rebuilding |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross emerge -O1 sys-devel/binutils |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross USE='headers-only' emerge -O1 sys-kernel/linux-headers |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross USE='headers-only -multilib' emerge -O1 sys-libs/glibc |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross USE='-cxx -fortran' emerge -O1 sys-devel/gcc |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross emerge -O1 sys-kernel/linux-headers |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross emerge -O1 sys-libs/glibc |
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PORTAGE_CONFIGROOT=/cross EPREFIX=/cross emerge -O1 sys-devel/gcc |
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|
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# Get extra BDEPENDs for the final system |
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emerge -O1 dev-util/pkgconf # dev-lang/python requires --keep-system-libs |
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emerge -O1 dev-libs/mpdecimal # dev-lang/python (host) |
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emerge -O1 dev-libs/expat # dev-lang/python (host) |
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# TODO: verify bzip2 dep |
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mv /bin/bzip2 /bin/bzip2-reference |
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ln -s bzip2-reference /bin/bzip2 |
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emerge -O1 app-arch/bzip2 # dev-lang/python (build) |
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# TODO: move python build so we don't need python-exec hack |
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# ... or switch to only using python3.11 |
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USE='-*' emerge -O1 dev-lang/python # cross compiling python programs needs same version |
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emerge -O1 dev-lang/python-exec-conf |
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USE='python_targets_python3_12' emerge -O1 dev-lang/python-exec |
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|
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# Allow meson to still be ran despite python upgrade |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/gpep517 |
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emerge -O1 app-arch/unzip |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/installer |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/flit-core |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/packaging |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/more-itertools |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/ordered-set |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/jaraco-text |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/jaraco-functools |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/jaraco-context |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/wheel |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-python/setuptools |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 dev-build/meson |
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PYTHON_COMPAT_OVERRIDE=python3_12 emerge -O1 sys-apps/portage |
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|
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# Reconfigure cross toolchain for final system |
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cat > /cross/usr/lib/gcc/x86_64-bootstrap-linux-gnu/specs << 'EOF' |
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*link: |
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+ %{!shared:%{!static:%{!static-pie:-dynamic-linker %{m32:/lib/ld-linux.so.2;:/lib64/ld-linux-x86-64.so.2}}}} |
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EOF |
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for tool in gcc g++; do |
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rm -f /cross/usr/bin/x86_64-bootstrap-linux-gnu-$tool |
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cat > /cross/usr/bin/x86_64-bootstrap-linux-gnu-$tool << EOF |
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#!/bin/sh |
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exec /cross/usr/i386-unknown-linux-musl/x86_64-bootstrap-linux-gnu/gcc-bin/*/x86_64-bootstrap-linux-gnu-$tool --sysroot=/gentoo "\$@" |
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EOF |
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chmod +x /cross/usr/bin/x86_64-bootstrap-linux-gnu-$tool |
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done |
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# TODO: Do I need this? |
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cat > /cross/usr/bin/x86_64-bootstrap-linux-gnu-pkg-config << 'EOF' |
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#!/bin/sh |
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export PKG_CONFIG_SYSROOT_DIR=/gentoo |
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export PKG_CONFIG_LIBDIR=/gentoo/usr/lib64/pkgconfig |
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export PKG_CONFIG_PATH=/gentoo/usr/share/pkgconfig |
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export PKG_CONFIG_SYSTEM_INCLUDE_PATH=/gentoo/usr/include |
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export PKG_CONFIG_SYSTEM_LIBRARY_PATH=/gentoo/lib64:/gentoo/usr/lib64 |
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exec pkg-config "$@" |
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EOF |
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chmod +x /cross/usr/bin/x86_64-bootstrap-linux-gnu-pkg-config |
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|
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# Compile final system (hopefully) |
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# TODO: Try to get rid of CFLAGS_x86 override |
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mkdir -p /gentoo/etc/portage |
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ln -sf /var/db/repos/gentoo/profiles/default/linux/amd64/23.0 /gentoo/etc/portage/make.profile |
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cat > /gentoo/etc/portage/make.conf << 'EOF' |
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FEATURES="-news -sandbox -usersandbox -pid-sandbox -parallel-fetch" |
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BINPKG_COMPRESS="bzip2" |
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CBUILD="i386-unknown-linux-musl" |
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CHOST="x86_64-bootstrap-linux-gnu" |
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CFLAGS_x86=-m32 |
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USE="-* build python_targets_$PYTHON_SINGLE_TARGET" |
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CONFIG_SITE="$PORTAGE_CONFIGROOT/etc/portage/config.site" |
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EOF |
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cat > /gentoo/etc/portage/config.site << 'EOF' |
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if [ "${CBUILD:-${CHOST}}" != "${CHOST}" ]; then |
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# Settings grabbed from crossdev |
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ac_cv_file__dev_ptmx=yes |
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ac_cv_file__dev_ptc=no |
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fi |
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EOF |
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|
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# TODO: Build gcc with openmp (required by zstd) |
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|
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PORTAGE_CONFIGROOT=/gentoo ROOT=/gentoo SYSROOT=/gentoo emerge -O1n \ |
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sys-apps/baselayout \ |
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sys-kernel/linux-headers \ |
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sys-libs/glibc \ |
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sys-devel/binutils \ |
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dev-libs/gmp \ |
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dev-libs/mpfr \ |
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dev-libs/mpc \ |
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sys-devel/gcc \ |
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\ |
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app-arch/bzip2 \ |
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app-arch/xz-utils \ |
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dev-libs/expat \ |
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dev-libs/libffi \ |
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dev-libs/mpdecimal \ |
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sys-apps/util-linux \ |
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sys-libs/libxcrypt \ |
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sys-libs/zlib \ |
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dev-lang/python:3.12 \ |
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\ |
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dev-lang/python-exec \ |
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sys-apps/portage \ |
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\ |
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sys-libs/ncurses \ |
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sys-libs/readline \ |
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app-shells/bash \ |
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\ |
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sys-apps/coreutils \ |
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sys-apps/findutils \ |
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app-arch/tar \ |
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app-arch/gzip \ |
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sys-apps/sed \ |
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sys-apps/grep \ |
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sys-devel/patch \ |
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sys-apps/gawk \ |
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dev-build/make |
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|
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# TODO: Un-hardcode python 3.12 |
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# TODO: Avoid gzip, sed and grep? |
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|
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# Fetch some extra source code |
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DISTDIR=/gentoo/var/cache/distfiles \ |
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PORTAGE_CONFIGROOT=/gentoo ROOT=/gentoo SYSROOT=/gentoo emerge -O1f \ |
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app-misc/ca-certificates \ |
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dev-lang/perl \ |
|||
dev-libs/openssl \ |
|||
dev-util/pkgconf \ |
|||
net-misc/wget |
|||
Loading…
Reference in new issue