mirror of
https://github.com/flatcar/scripts.git
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2161efba6f
When adding a mask or accept keywords entry for some version of a
toolchain package (gcc, libc, gdb, binutils or kernel headers), it
can't be done by just doing it, for example, for sys-devel/gcc. Both
cross-{x86_64,aarch64}-cros-linux-gnu/gcc needs to be
masked/keyworded, otherwise crossdev will pick up the latest stable
version for cross-{x86_64,aarch64}-cros-linux-gnu/gcc and this choice
is not affected by masks or accept keywords of sys-devel/gcc.
This situation does not happen all that often, but when it happens,
it's usually hard to remember to handle also the cross toolchain
packages. Forgetting to do so leads to weird issues. So instead of
telling crossdev to use the latest stable versions of cross toolchain
packages, we will tell it to use specific versions that match the
version of plain packages.
545 lines
19 KiB
Bash
545 lines
19 KiB
Bash
#!/bin/bash
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# Toolchain packages are treated a bit specially, since they take a
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# while to build and are generally more complicated to build they are
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# only built via catalyst and everyone else installs them as binpkgs.
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TOOLCHAIN_PKGS=(
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sys-devel/binutils
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sys-devel/gcc
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sys-kernel/linux-headers
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sys-libs/glibc
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)
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# Portage profile to use for building out the cross compiler's SYSROOT.
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# This is only used as an intermediate step to be able to use the cross
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# compiler to build a full native toolchain. Packages are not uploaded.
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declare -A CROSS_PROFILES
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CROSS_PROFILES["x86_64-cros-linux-gnu"]="coreos:coreos/amd64/generic"
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CROSS_PROFILES["aarch64-cros-linux-gnu"]="coreos:coreos/arm64/generic"
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# Map board names to CHOSTs and portage profiles. This is the
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# definitive list, there is assorted code new and old that either
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# guesses or hard-code these. All that should migrate to this list.
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declare -A BOARD_CHOSTS BOARD_PROFILES
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BOARD_CHOSTS["amd64-usr"]="x86_64-cros-linux-gnu"
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BOARD_PROFILES["amd64-usr"]="coreos:coreos/amd64/generic"
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BOARD_CHOSTS["arm64-usr"]="aarch64-cros-linux-gnu"
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BOARD_PROFILES["arm64-usr"]="coreos:coreos/arm64/generic"
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BOARD_NAMES=( "${!BOARD_CHOSTS[@]}" )
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# Declare the above globals as read-only to avoid accidental conflicts.
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declare -r \
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TOOLCHAIN_PKGS \
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CROSS_PROFILES \
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BOARD_CHOSTS \
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BOARD_NAMES \
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BOARD_PROFILES
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### Generic metadata fetching functions ###
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# map CHOST to portage ARCH, list came from crossdev
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# Usage: get_portage_arch chost
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get_portage_arch() {
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case "$1" in
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aarch64*) echo arm64;;
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alpha*) echo alpha;;
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arm*) echo arm;;
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hppa*) echo hppa;;
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ia64*) echo ia64;;
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i?86*) echo x86;;
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m68*) echo m68k;;
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mips*) echo mips;;
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powerpc64*) echo ppc64;;
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powerpc*) echo ppc;;
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sparc*) echo sparc;;
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s390*) echo s390;;
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sh*) echo sh;;
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x86_64*) echo amd64;;
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*) die "Unknown CHOST '$1'";;
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esac
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}
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# map CHOST to kernel ARCH
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# Usage: get_kernel_arch chost
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get_kernel_arch() {
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case "$1" in
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aarch64*) echo arm64;;
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alpha*) echo alpha;;
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arm*) echo arm;;
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hppa*) echo parisc;;
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ia64*) echo ia64;;
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i?86*) echo x86;;
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m68*) echo m68k;;
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mips*) echo mips;;
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powerpc*) echo powerpc;;
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sparc64*) echo sparc64;;
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sparc*) echo sparc;;
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s390*) echo s390;;
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sh*) echo sh;;
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x86_64*) echo x86;;
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*) die "Unknown CHOST '$1'";;
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esac
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}
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get_board_list() {
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local IFS=$'\n\t '
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sort <<<"${BOARD_NAMES[*]}"
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}
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get_chost_list() {
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local IFS=$'\n\t '
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sort -u <<<"${BOARD_CHOSTS[*]}"
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}
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get_profile_list() {
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local IFS=$'\n\t '
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sort -u <<<"${BOARD_PROFILES[*]}"
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}
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# Usage: get_board_arch board [board...]
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get_board_arch() {
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local board
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for board in "$@"; do
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get_portage_arch $(get_board_chost "${board}")
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done
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}
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# Usage: get_board_chost board [board...]
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get_board_chost() {
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local board
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for board in "$@"; do
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if [[ ${#BOARD_CHOSTS["$board"]} -ne 0 ]]; then
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echo "${BOARD_CHOSTS["$board"]}"
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else
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die "Unknown board '$board'"
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fi
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done
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}
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# Usage: get_board_profile board [board...]
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get_board_profile() {
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local board
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for board in "$@"; do
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if [[ ${#BOARD_PROFILES["$board"]} -ne 0 ]]; then
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echo "${BOARD_PROFILES["$board"]}"
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else
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die "Unknown board '$board'"
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fi
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done
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}
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# Usage: get_board_binhost [-t] board [version...]
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# -t: toolchain only, full rebuilds re-using toolchain pkgs
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# If no versions are specified the current and SDK versions are used.
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get_board_binhost() {
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local toolchain_only=0 board ver
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if [[ "$1" == "-t" ]]; then
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toolchain_only=1
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shift
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fi
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board="$1"
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shift
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local pkgs_include_toolchain=0
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if [[ $# -eq 0 ]]; then
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if [[ "${FLATCAR_BUILD_ID}" =~ ^nightly-.*$ ]] ; then
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# containerised nightly build; this uses [VERSION]-[BUILD_ID] for binpkg url
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# and toolchain packages are at the same location as OS image ones
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set -- "${FLATCAR_VERSION_ID}+${FLATCAR_BUILD_ID}"
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pkgs_include_toolchain=1
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else
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set -- "${FLATCAR_VERSION_ID}"
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fi
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fi
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for ver in "$@"; do
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if [[ $toolchain_only -eq 0 ]]; then
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echo "${FLATCAR_DEV_BUILDS}/boards/${board}/${ver}/pkgs/"
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fi
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if [[ $pkgs_include_toolchain -eq 0 ]]; then
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echo "${FLATCAR_DEV_BUILDS}/boards/${board}/${ver}/toolchain/"
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fi
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done
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}
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get_sdk_arch() {
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get_portage_arch $(uname -m)
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}
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get_sdk_profile() {
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echo "coreos:coreos/$(get_sdk_arch)/sdk"
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}
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get_sdk_libdir() {
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# Looking for LIBDIR_amd64 or similar
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portageq envvar "LIBDIR_$(get_sdk_arch)"
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}
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get_sdk_symlink_lib() {
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portageq envvar "SYMLINK_LIB"
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}
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# Usage: get_sdk_binhost [version...]
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# If no versions are specified the current and SDK versions are used.
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get_sdk_binhost() {
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local arch=$(get_sdk_arch) ver
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if [[ $# -eq 0 ]]; then
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set -- "${FLATCAR_SDK_VERSION}"
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fi
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if [ "${FLATCAR_DEV_BUILDS}" != "${SETTING_BINPKG_SERVER_DEV_CONTAINERISED}" ] ; then
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FLATCAR_DEV_BUILDS_SDK="${FLATCAR_DEV_BUILDS_SDK-${FLATCAR_DEV_BUILDS}/sdk}"
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else
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# ALWAYS use a released SDK version, never a nightly, for SDK binpkgs
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FLATCAR_DEV_BUILDS_SDK="${FLATCAR_DEV_BUILDS_SDK-${SETTING_BINPKG_SERVER_PROD}/sdk}"
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fi
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for ver in "$@"; do
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# Usually only crossdev needs to be fetched from /toolchain/ in the setup_board step.
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# The entry for /pkgs/ is there if something needs to be reinstalled in the SDK
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# but normally it is not needed because everything is already part of the tarball.
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# To install the crossdev Rust package, /toolchain-arm64/ is derived from /toolchain/
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# when necessary in install_cross_toolchain().
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echo "${FLATCAR_DEV_BUILDS_SDK}/${arch}/${ver}/toolchain/"
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echo "${FLATCAR_DEV_BUILDS_SDK}/${arch}/${ver}/pkgs/"
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done
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}
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# Usage: get_cross_pkgs chost [chost2...]
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get_cross_pkgs() {
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local cross_chost native_pkg
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for cross_chost in "$@"; do
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for native_pkg in "${TOOLCHAIN_PKGS[@]}"; do
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echo "${native_pkg/*\//cross-${cross_chost}/}"
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done
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done
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}
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# Get portage arguments restricting toolchains to binary packages only.
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get_binonly_args() {
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local pkgs=( "${TOOLCHAIN_PKGS[@]}" $(get_cross_pkgs "$@") )
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echo "${pkgs[@]/#/--useoldpkg-atoms=}" "${pkgs[@]/#/--rebuild-exclude=}"
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}
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### Toolchain building utilities ###
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# Create the crossdev overlay and repos.conf entry.
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# crossdev will try to setup this itself but doesn't do everything needed
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# to make the newer repos.conf based configuration system happy. This can
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# probably go away if crossdev itself is improved.
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configure_crossdev_overlay() {
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local root="$1"
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local location="$2"
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# may be called from either catalyst (root) or update_chroot (user)
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local sudo="env"
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if [[ $(id -u) -ne 0 ]]; then
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sudo="sudo -E"
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fi
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$sudo mkdir -p "${root}${location}/"{profiles,metadata}
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echo "x-crossdev" | \
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$sudo tee "${root}${location}/profiles/repo_name" > /dev/null
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$sudo tee "${root}${location}/metadata/layout.conf" > /dev/null <<EOF
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masters = portage-stable coreos
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use-manifests = true
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thin-manifests = true
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EOF
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$sudo tee "${root}/etc/portage/repos.conf/crossdev.conf" > /dev/null <<EOF
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[x-crossdev]
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location = ${location}
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EOF
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}
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# Ugly hack to get a dependency list of a set of packages.
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# This is required to figure out what to install in the crossdev sysroot.
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# Usage: ROOT=/foo/bar _get_dependency_list pkgs... [--portage-opts...]
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_get_dependency_list() {
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local pkgs=( ${*/#-*/} )
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local IFS=$'| \t\n'
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PORTAGE_CONFIGROOT="$ROOT" emerge "$@" --pretend \
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--emptytree --root-deps=rdeps --onlydeps --quiet | \
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egrep "$ROOT" |
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sed -e 's/[^]]*\] \([^ :]*\).*/=\1/' |
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egrep -v "=($(echo "${pkgs[*]}"))-[0-9]"
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}
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# Configure a new ROOT
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# Values are copied from the environment or the current host configuration.
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# Usage: CBUILD=foo-bar-linux-gnu ROOT=/foo/bar SYSROOT=/foo/bar configure_portage coreos:some/profile
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# Note: if using portageq to get CBUILD it must be called before CHOST is set.
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_configure_sysroot() {
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local profile="$1"
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# may be called from either catalyst (root) or setup_board (user)
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local sudo="env"
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if [[ $(id -u) -ne 0 ]]; then
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sudo="sudo -E"
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fi
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$sudo mkdir -p "${ROOT}/etc/portage/"{profile,repos.conf}
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$sudo cp /etc/portage/repos.conf/* "${ROOT}/etc/portage/repos.conf/"
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$sudo eselect profile set --force "$profile"
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local coreos_path
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coreos_path=$(portageq get_repo_path "${ROOT}" coreos)
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$sudo ln -sfT "${coreos_path}/coreos/user-patches" "${ROOT}/etc/portage/patches"
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echo "Writing make.conf for the sysroot ${SYSROOT}, root ${ROOT}"
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$sudo tee "${ROOT}/etc/portage/make.conf" <<EOF
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$(portageq envvar -v CHOST CBUILD ROOT DISTDIR PKGDIR)
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# TODO: These are deprecated, drop them eventually.
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PORTDIR="$(portageq get_repo_path "${ROOT}" portage-stable)"
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PORTDIR_OVERLAY="${coreos_path} $(portageq get_repo_path "${ROOT}" x-crossdev)"
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HOSTCC=\${CBUILD}-gcc
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PKG_CONFIG_PATH="\${SYSROOT}/usr/lib/pkgconfig/"
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# Enable provenance reporting by default. Produced files are in /usr/share/SLSA
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GENERATE_SLSA_PROVENANCE="true"
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EOF
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}
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# Dump crossdev information to determine if configs must be regenerated
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_crossdev_info() {
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local cross_chost="$1"; shift
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echo -n "# "; crossdev --version
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echo "# $@"
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crossdev "$@" --show-target-cfg
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}
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# Gets atoms for emerge and flags for crossdev that will install such
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# versions of cross toolchain packages that they will match versions
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# of a normal packages that would be installed. That way, if, for
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# example, some version of sys-devel/gcc needs to be masked, then
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# there is no need to also mask cross-<arch>-cros-linux-gnu/gcc
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# package.
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#
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# Example use:
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#
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# local -a emerge_atoms=() crossdev_flags=()
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# _get_cross_pkgs_for_emerge_and_crossdev x86_64-cros-linux-gnu emerge_atoms crossdev_flags
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#
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# emerge_atoms will have atoms like "=cross-x86_64-cros-linux-gnu/gcc-11.3.1_p20221209"
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#
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# crossdev_flags will have flags like "--gcc" "=11.3.1_p20221209"
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_get_cross_pkgs_for_emerge_and_crossdev() {
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local cross_chost="${1}"; shift
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local gcpfeac_emerge_atoms_var_name="${1}"; shift
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local gcpfeac_crossdev_pkg_flags_var_name="${1}"; shift
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local -n gcpfeac_emerge_atoms_var_ref="${gcpfeac_emerge_atoms_var_name}"
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local -n gcpfeac_crossdev_pkg_flags_var_ref="${gcpfeac_crossdev_pkg_flags_var_name}"
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local -a all_pkgs=( "${TOOLCHAIN_PKGS[@]}" sys-devel/gdb )
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local -A crossdev_flags_map=(
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[binutils]=--binutils
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[gdb]=--gdb
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[gcc]=--gcc
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[linux-headers]=--kernel
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[glibc]=--libc
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)
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local emerge_report pkg line version pkg_name crossdev_flag
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emerge_report=$(emerge --quiet --pretend --oneshot --nodeps "${all_pkgs[@]}")
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for pkg in "${all_pkgs[@]}"; do
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line=$(grep -o "${pkg}-[^ ]*" <<<"${emerge_report}")
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cross_pkg="${pkg/*\//cross-${cross_chost}/}"
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version="${line#${pkg}-}"
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gcpfeac_emerge_atoms_var_ref+=( "=${cross_pkg}-${version}" )
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pkg_name="${pkg#*/}"
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crossdev_flag="${crossdev_flags_map[${pkg_name}]}"
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gcpfeac_crossdev_pkg_flags_var_ref+=( "${crossdev_flag}" "=${version}" )
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done
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}
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# Build/install a toolchain w/ crossdev.
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# Usage: build_cross_toolchain chost [--portage-opts....]
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install_cross_toolchain() {
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local cross_chost="${1}"; shift
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local cross_cfg cross_cfg_data cbuild
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local -a cross_flags emerge_flags emerge_atoms cross_pkg_flags
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emerge_atoms=()
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cross_pkg_flags=()
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_get_cross_pkgs_for_emerge_and_crossdev "${cross_chost}" emerge_atoms cross_pkg_flags
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# build gdb as an extra step, use specific versions of toolchain packages
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cross_flags=( --ex-gdb --target "${cross_chost}" "${cross_pkg_flags[@]}" )
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cross_cfg="/usr/${cross_chost}/etc/portage/${cross_chost}-crossdev"
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cross_cfg_data=$(_crossdev_info "${cross_flags[@]}")
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cbuild=$(portageq envvar CBUILD)
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emerge_flags=( "$@" --binpkg-respect-use=y --update --newuse )
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# Forcing binary packages for toolchain packages breaks crossdev since it
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# prevents it from rebuilding with different use flags during bootstrap.
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local safe_flags=( "${@/#--useoldpkg-atoms=*/}" )
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safe_flags=( "${safe_flags[@]/#--rebuild-exclude=*/}" )
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cross_flags+=( --portage "${safe_flags[*]}" )
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# may be called from either catalyst (root) or upgrade_chroot (user)
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local sudo="env"
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if [[ $(id -u) -ne 0 ]]; then
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sudo="sudo -E"
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fi
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# crossdev will arbitrarily choose an overlay that it finds first.
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# Force it to use the one created by configure_crossdev_overlay
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local cross_overlay
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cross_overlay=$(portageq get_repo_path / x-crossdev)
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if [[ -n "${cross_overlay}" ]]; then
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cross_flags+=( --ov-output "${cross_overlay}" )
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else
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echo "No x-crossdev overlay found!" >&2
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return 1
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fi
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# Only call crossdev to regenerate configs if something has changed
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if [[ ! -d "${cross_overlay}/cross-${cross_chost}" ]] || ! cmp --quiet - "${cross_cfg}" <<<"${cross_cfg_data}"
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then
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$sudo crossdev "${cross_flags[@]}" --init-target
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$sudo tee "${cross_cfg}" <<<"${cross_cfg_data}" >/dev/null
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fi
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# Check if any packages need to be built from source. If so do a full
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# bootstrap via crossdev, otherwise just install the binaries (if enabled).
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# It is ok to build gdb from source outside of crossdev.
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if emerge "${emerge_flags[@]}" \
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--pretend "${emerge_atoms[@]}" | grep -q '^\[ebuild'
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then
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echo "Doing a full bootstrap via crossdev"
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$sudo crossdev "${cross_flags[@]}" --stage4
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else
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echo "Installing existing binaries"
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$sudo emerge "${emerge_flags[@]}" "${emerge_atoms[@]}"
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if [ "${cbuild}" = "x86_64-pc-linux-gnu" ] && [ "${cross_chost}" = aarch64-cros-linux-gnu ] && \
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[ ! -d /usr/lib/rust-*/rustlib/aarch64-unknown-linux-gnu ] && [ ! -d /usr/lib/rustlib/aarch64-unknown-linux-gnu ]; then
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# If no aarch64 folder exists, warn about the situation but don't compile Rust here or download it as binary package
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echo "WARNING: No aarch64 cross-compilation Rust libraries found!"
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echo "In case building fails, make sure the old Rust version is deleted with: sudo emerge -C virtual/rust dev-lang/rust"
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echo "Then install it again with: sudo emerge "${emerge_flags[@]}" virtual/rust"
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echo "This will download the binary package or build from source."
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fi
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fi
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# Setup environment and wrappers for our shiny new toolchain
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binutils_set_latest_profile "${cross_chost}"
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gcc_set_latest_profile "${cross_chost}"
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$sudo CC_QUIET=1 sysroot-config --install-links "${cross_chost}"
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}
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# Build/install toolchain dependencies into the cross sysroot for a
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# given CHOST. This is required to build target board toolchains since
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# the target sysroot under /build/$BOARD is incomplete at this stage.
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# Usage: build_cross_toolchain chost [--portage-opts....]
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install_cross_libs() {
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local cross_chost="$1"; shift
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local ROOT="/usr/${cross_chost}"
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local package_provided="$ROOT/etc/portage/profile/package.provided"
|
|
|
|
# may be called from either catalyst (root) or setup_board (user)
|
|
local sudo="env"
|
|
if [[ $(id -u) -ne 0 ]]; then
|
|
sudo="sudo -E"
|
|
fi
|
|
|
|
CBUILD="$(portageq envvar CBUILD)" \
|
|
CHOST="${cross_chost}" \
|
|
ROOT="$ROOT" \
|
|
SYSROOT="$ROOT" \
|
|
_configure_sysroot "${CROSS_PROFILES[${cross_chost}]}"
|
|
|
|
# In order to get a dependency list we must calculate it before
|
|
# updating package.provided. Otherwise portage will no-op.
|
|
$sudo rm -f "${package_provided}/cross-${cross_chost}"
|
|
local cross_deps=$(ROOT="$ROOT" SYSROOT="$ROOT" _get_dependency_list \
|
|
"$@" "${TOOLCHAIN_PKGS[@]}" | $sudo tee \
|
|
"$ROOT/etc/portage/cross-${cross_chost}-depends")
|
|
|
|
# Add toolchain to packages.provided since they are on the host system
|
|
if [[ -f "${package_provided}" ]]; then
|
|
# emerge-wrapper is trying a similar trick but doesn't work
|
|
$sudo rm -f "${package_provided}"
|
|
fi
|
|
$sudo mkdir -p "${package_provided}"
|
|
local native_pkg cross_pkg cross_pkg_version
|
|
for native_pkg in "${TOOLCHAIN_PKGS[@]}"; do
|
|
cross_pkg="${native_pkg/*\//cross-${cross_chost}/}"
|
|
cross_pkg_version=$(portageq match / "${cross_pkg}")
|
|
echo "${native_pkg%/*}/${cross_pkg_version#*/}"
|
|
done | $sudo tee "${package_provided}/cross-${cross_chost}" >/dev/null
|
|
|
|
# OK, clear as mud? Install those dependencies now!
|
|
PORTAGE_CONFIGROOT="$ROOT" $sudo emerge --root="$ROOT" --sysroot="$ROOT" "$@" -u $cross_deps
|
|
}
|
|
|
|
install_cross_rust() {
|
|
local cross_chost="$1"; shift
|
|
local emerge_flags=( "$@" --binpkg-respect-use=y --update )
|
|
local cbuild="$(portageq envvar CBUILD)"
|
|
|
|
# may be called from either catalyst (root) or upgrade_chroot (user)
|
|
local sudo="env"
|
|
if [[ $(id -u) -ne 0 ]]; then
|
|
sudo="sudo -E"
|
|
fi
|
|
|
|
if [ "${cbuild}" = "x86_64-pc-linux-gnu" ] && [ "${cross_chost}" = "aarch64-cros-linux-gnu" ]; then
|
|
echo "Building Rust for arm64"
|
|
# If no aarch64 folder exists, try to remove any existing Rust packages.
|
|
[ ! -d /usr/lib/rustlib/aarch64-unknown-linux-gnu ] && ($sudo emerge -C dev-lang/rust || true)
|
|
$sudo emerge "${emerge_flags[@]}" dev-lang/rust
|
|
fi
|
|
}
|
|
|
|
# Update to the latest binutils profile for a given CHOST if required
|
|
# Usage: binutils_set_latest_profile chost
|
|
binutils_set_latest_profile() {
|
|
local latest="$@-latest"
|
|
if [[ -z "${latest}" ]]; then
|
|
echo "Failed to detect latest binutils profile for $1" >&2
|
|
return 1
|
|
fi
|
|
|
|
# may be called from either catalyst (root) or upgrade_chroot (user)
|
|
local sudo="env"
|
|
if [[ $(id -u) -ne 0 ]]; then
|
|
sudo="sudo -E"
|
|
fi
|
|
|
|
$sudo binutils-config "${latest}"
|
|
}
|
|
|
|
# Get the latest GCC profile for a given CHOST
|
|
# The extra flag can be blank, hardenednopie, and so on. See gcc-config -l
|
|
# Usage: gcc_get_latest_profile chost [extra]
|
|
gcc_get_latest_profile() {
|
|
local prefix="${1}-"
|
|
local suffix="${2+-$2}"
|
|
local status
|
|
gcc-config -l | cut -d' ' -f3 | grep "^${prefix}[0-9\\.]*${suffix}$" | tail -n1
|
|
|
|
# return 1 if anything in the above pipe failed
|
|
for status in ${PIPESTATUS[@]}; do
|
|
[[ $status -eq 0 ]] || return 1
|
|
done
|
|
}
|
|
|
|
# Update to the latest GCC profile for a given CHOST if required
|
|
# The extra flag can be blank, hardenednopie, and so on. See gcc-config -l
|
|
# Usage: gcc_set_latest_profile chost [extra]
|
|
gcc_set_latest_profile() {
|
|
local latest=$(gcc_get_latest_profile "$@")
|
|
if [[ -z "${latest}" ]]; then
|
|
echo "Failed to detect latest gcc profile for $1" >&2
|
|
return 1
|
|
fi
|
|
|
|
# may be called from either catalyst (root) or upgrade_chroot (user)
|
|
local sudo="env"
|
|
if [[ $(id -u) -ne 0 ]]; then
|
|
sudo="sudo -E"
|
|
fi
|
|
|
|
$sudo gcc-config "${latest}"
|
|
}
|