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408bc67619
* Add shebangs for shellcheck See #AR-1406 * Add shebangs for shellcheck Also for `extensions` scripts
103 lines
3.8 KiB
Bash
103 lines
3.8 KiB
Bash
#!/usr/bin/env bash
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grab_version() {
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local ver=()
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ver[0]=$(grep "^VERSION" "${1}"/Makefile | head -1 | awk '{print $(NF)}' | grep -oE '^[[:digit:]]+')
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ver[1]=$(grep "^PATCHLEVEL" "${1}"/Makefile | head -1 | awk '{print $(NF)}' | grep -oE '^[[:digit:]]+')
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ver[2]=$(grep "^SUBLEVEL" "${1}"/Makefile | head -1 | awk '{print $(NF)}' | grep -oE '^[[:digit:]]+')
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ver[3]=$(grep "^EXTRAVERSION" "${1}"/Makefile | head -1 | awk '{print $(NF)}' | grep -oE '^-rc[[:digit:]]+')
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echo "${ver[0]:-0}${ver[1]:+.${ver[1]}}${ver[2]:+.${ver[2]}}${ver[3]}"
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}
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# find_toolchain <compiler_prefix> <expression>
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#
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# returns path to toolchain that satisfies <expression>
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#
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find_toolchain() {
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[[ "${SKIP_EXTERNAL_TOOLCHAINS}" == "yes" ]] && {
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echo "/usr/bin"
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return
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}
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local compiler=$1
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local expression=$2
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local dist=10
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local toolchain=""
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# extract target major.minor version from expression
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local target_ver
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target_ver=$(grep -oE "[[:digit:]]+\.[[:digit:]]" <<< "$expression")
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for dir in "${SRC}"/cache/toolchain/*/; do
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# check if is a toolchain for current $ARCH
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[[ ! -f ${dir}bin/${compiler}gcc ]] && continue
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# get toolchain major.minor version
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local gcc_ver
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gcc_ver=$("${dir}bin/${compiler}gcc" -dumpversion | grep -oE "^[[:digit:]]+\.[[:digit:]]")
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# check if toolchain version satisfies requirement
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awk "BEGIN{exit ! ($gcc_ver $expression)}" > /dev/null || continue
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# check if found version is the closest to target
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# may need different logic here with more than 1 digit minor version numbers
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# numbers: 3.9 > 3.10; versions: 3.9 < 3.10
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# dpkg --compare-versions can be used here if operators are changed
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local d
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d=$(awk '{x = $1 - $2}{printf "%.1f\n", (x > 0) ? x : -x}' <<< "$target_ver $gcc_ver")
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if awk "BEGIN{exit ! ($d < $dist)}" > /dev/null; then
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dist=$d
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toolchain=${dir}bin
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fi
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done
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echo "$toolchain"
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# logging a stack of used compilers.
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if [[ -f "${DEST}"/${LOG_SUBPATH}/compiler.log ]]; then
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if ! grep -q "$toolchain" "${DEST}"/${LOG_SUBPATH}/compiler.log; then
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echo "$toolchain" >> "${DEST}"/${LOG_SUBPATH}/compiler.log
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fi
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else
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echo "$toolchain" >> "${DEST}"/${LOG_SUBPATH}/compiler.log
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fi
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}
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# overlayfs_wrapper <operation> <workdir> <description>
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#
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# <operation>: wrap|cleanup
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# <workdir>: path to source directory
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# <description>: suffix for merged directory to help locating it in /tmp
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# return value: new directory
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#
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# Assumptions/notes:
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# - Ubuntu Xenial host
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# - /tmp is mounted as tmpfs
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# - there is enough space on /tmp
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# - UB if running multiple compilation tasks in parallel
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# - should not be used with CREATE_PATCHES=yes
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#
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overlayfs_wrapper() {
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local operation="$1"
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if [[ $operation == wrap ]]; then
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local srcdir="$2"
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local description="$3"
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mkdir -p /tmp/overlay_components/ /tmp/armbian_build/
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local tempdir workdir mergeddir
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tempdir=$(mktemp -d --tmpdir="/tmp/overlay_components/")
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workdir=$(mktemp -d --tmpdir="/tmp/overlay_components/")
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mergeddir=$(mktemp -d --suffix="_$description" --tmpdir="/tmp/armbian_build/")
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mount -t overlay overlay -o lowerdir="$srcdir",upperdir="$tempdir",workdir="$workdir" "$mergeddir"
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# this is executed in a subshell, so use temp files to pass extra data outside
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echo "$tempdir" >> /tmp/.overlayfs_wrapper_cleanup
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echo "$mergeddir" >> /tmp/.overlayfs_wrapper_umount
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echo "$mergeddir" >> /tmp/.overlayfs_wrapper_cleanup
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echo "$mergeddir"
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return
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fi
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if [[ $operation == cleanup ]]; then
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if [[ -f /tmp/.overlayfs_wrapper_umount ]]; then
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for dir in $(< /tmp/.overlayfs_wrapper_umount); do
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[[ $dir == /tmp/* ]] && umount -l "$dir" > /dev/null 2>&1
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done
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fi
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if [[ -f /tmp/.overlayfs_wrapper_cleanup ]]; then
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for dir in $(< /tmp/.overlayfs_wrapper_cleanup); do
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[[ $dir == /tmp/* ]] && rm -rf "$dir"
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done
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fi
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rm -f /tmp/.overlayfs_wrapper_umount /tmp/.overlayfs_wrapper_cleanup
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fi
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}
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