repo/core/busybox/build
2019-08-25 17:46:59 +00:00

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#!/bin/sh -e
# Build and install regular busybox.
# This excludes utilities which require 'suid' to function.
make
make CONFIG_PREFIX="$1/usr" install
# Rename the binary temporarily.
mv "$1/usr/bin/busybox" "$1/usr/bin/busybox-nosuid"
# Build and install suid busybox.
# This _only_ includes utlities which require 'suid' to function.
cp -f .config-suid .config
make
make CONFIG_PREFIX="$1/usr" install
# Aptly name the busybox binaries.
mv "$1/usr/bin/busybox" "$1/usr/bin/busybox-suid"
mv "$1/usr/bin/busybox-nosuid" "$1/usr/bin/busybox"
# Install the non-suid symlinks.
"$1/usr/bin/busybox" --list | while read -r bin; do
ln -s busybox "$1/usr/bin/$bin"
done
# Install the suid symlinks.
"$1/usr/bin/busybox-suid" --list | while read -r bin; do
ln -s busybox-suid "$1/usr/bin/$bin"
done
# Set suid on busybox suid.
chmod +s "$1/usr/bin/busybox-suid"
# Build and install a statically compiled busybox.
# This is useful for instances where the system is broken
# and for making an initramfs.
#
# The sleep is required so that 'make' doesn't skip the
# changes due to its 'mtime' checks.
make defconfig
sleep 1
sed -i'' "s/.*CONFIG_STATIC.*/CONFIG_STATIC=y/" .config
make
install -Dm755 busybox "$1/usr/lib/busybox"
# Install runit services.
install -Dm755 acpid.run "$1/etc/sv/acpid/run"
install -Dm755 crond.run "$1/etc/sv/crond/run"
install -Dm755 syslogd.run "$1/etc/sv/syslogd/run"
ln -s /run/runit/supervise.acpid "$1/etc/sv/acpid/supervise"
ln -s /run/runit/supervise.crond "$1/etc/sv/crond/supervise"
ln -s /run/runit/supervise.syslogd "$1/etc/sv/syslogd/supervise"