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https://github.com/topjohnwu/Magisk.git
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Significantly better AVD support
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topjohnwu
@ -3,16 +3,19 @@
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# AVD Magisk Setup
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#####################################################################
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#
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# This script will setup an environment with minimal Magisk that
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# the Magisk app will be happy to run properly within the official
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# emulator bundled with Android Studio (AVD).
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# Support emulator ABI: x86_64 *only*
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# Support API level: 23 - 31 (21 and 22 images do not have SELinux)
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#
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# ONLY use this script for developing the Magisk app or root apps
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# in the emulator. The constructed Magisk environment is not a
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# fully functional one as if it is running on an actual device.
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# This script will stop zygote, simulate the Magisk start up process
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# that would've happened before zygote was started, and finally
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# restart zygote. This is useful for setting up the emulator for
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# developing Magisk, testing modules, and developing root apps using
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# the official Android emulator (AVD) instead of a real device.
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#
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# The script assumes you are using x64 emulator images.
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# Build binaries with `./build.py binary` before running this script.
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# This only covers the "core" features of Magisk. Testing magiskinit
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# and magiskboot require additional setups that are not covered here.
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#
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# Build everything by `./build.py all` before running this script.
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#
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#####################################################################
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@ -29,16 +32,13 @@ mount_sbin() {
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if [ ! -f /system/build.prop ]; then
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# Running on PC
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cd "$(dirname "$0")/.."
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adb push native/out/x86_64/busybox native/out/x86_64/magiskinit \
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native/out/x86_64/magisk scripts/emulator.sh /data/local/tmp
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adb push native/out/x86_64/busybox out/app-debug.apk scripts/emulator.sh /data/local/tmp
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adb shell sh /data/local/tmp/emulator.sh
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exit 0
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fi
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cd /data/local/tmp
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chmod 777 busybox
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chmod 777 magiskinit
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chmod 777 magisk
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chmod 755 busybox
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if [ -z "$FIRST_STAGE" ]; then
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export FIRST_STAGE=1
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@ -52,20 +52,34 @@ if [ -z "$FIRST_STAGE" ]; then
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fi
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fi
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# Remove previous setup if exist
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pgrep magiskd >/dev/null && pkill -9 magiskd
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[ -f /sbin/magisk ] && umount -l /sbin
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[ -f /system/bin/magisk ] && umount -l /system/bin
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if [ -d /dev/magisk ]; then
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umount -l /dev/magisk 2>/dev/null
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rm -rf /dev/magisk
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pm install -r $(pwd)/app-debug.apk
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# Extract files from APK
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unzip -oj app-debug.apk 'lib/x86_64/*' 'lib/x86/libmagisk32.so' -x 'lib/x86_64/busybox.so'
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for file in lib*.so; do
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chmod 755 $file
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mv "$file" "${file:3:${#file}-6}"
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done
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# Stop zygote (and previous setup if exists)
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magisk --stop 2>/dev/null
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stop
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if [ -d /dev/avd-magisk ]; then
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umount -l /dev/avd-magisk 2>/dev/null
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rm -rf /dev/avd-magisk 2>/dev/null
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fi
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# SELinux stuffs
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ln -sf ./magiskinit magiskpolicy
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./magiskpolicy --live --magisk
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if [ -f /vendor/etc/selinux/precompiled_sepolicy ]; then
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./magiskpolicy --load /vendor/etc/selinux/precompiled_sepolicy --live --magisk
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elif [ -f /sepolicy ]; then
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./magiskpolicy --load /sepolicy --live --magisk
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else
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./magiskpolicy --live --magisk
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fi
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BINDIR=/sbin
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MAGISKTMP=/sbin
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# Setup bin overlay
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if mount | grep -q rootfs; then
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@ -81,13 +95,11 @@ if mount | grep -q rootfs; then
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elif [ -e /sbin ]; then
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# Legacy SAR
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mount_sbin
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if ! grep -q '/sbin/.magisk/mirror/system_root' /proc/mounts; then
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mkdir -p /sbin/.magisk/mirror/system_root
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block=$(mount | grep ' / ' | awk '{ print $1 }')
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[ $block = "/dev/root" ] && block=/dev/block/dm-0
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mount -o ro $block /sbin/.magisk/mirror/system_root
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fi
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for file in /sbin/.magisk/mirror/system_root/sbin/*; do
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mkdir -p /dev/sysroot
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block=$(mount | grep ' / ' | awk '{ print $1 }')
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[ $block = "/dev/root" ] && block=/dev/block/dm-0
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mount -o ro $block /dev/sysroot
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for file in /dev/sysroot/sbin/*; do
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[ ! -e $file ] && break
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if [ -L $file ]; then
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cp -af $file /sbin
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@ -97,25 +109,43 @@ elif [ -e /sbin ]; then
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mount -o bind $file $sfile
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fi
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done
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umount -l /dev/sysroot
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rm -rf /dev/sysroot
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else
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# Android Q+ without sbin, use overlayfs
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BINDIR=/dev/magisk/upper
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mkdir /dev/magisk
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mount -t tmpfs -o 'mode=0755' tmpfs /dev/magisk
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chcon u:object_r:system_file:s0 /dev/magisk
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mkdir /dev/magisk/upper
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mkdir /dev/magisk/work
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./magisk --clone-attr /system/bin /dev/magisk/upper
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mount -t overlay overlay -o lowerdir=/system/bin,upperdir=/dev/magisk/upper,workdir=/dev/magisk/work /system/bin
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# Android Q+ without sbin
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MAGISKTMP=/dev/avd-magisk
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mkdir /dev/avd-magisk
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mount -t tmpfs -o 'mode=0755' tmpfs /dev/avd-magisk
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fi
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# Magisk stuffs
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cp -af ./magisk $BINDIR/magisk
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chmod 755 $BINDIR/magisk
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ln -s ./magisk $BINDIR/su
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ln -s ./magisk $BINDIR/resetprop
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ln -s ./magisk $BINDIR/magiskhide
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mkdir -p /data/adb/modules 2>/dev/null
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mkdir -p /data/adb/magisk 2>/dev/null
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unzip -oj app-debug.apk 'assets/*' -x 'assets/chromeos/*' -d /data/adb/magisk
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mkdir /data/adb/modules 2>/dev/null
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mkdir /data/adb/post-fs-data.d 2>/dev/null
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mkdir /data/adb/services.d 2>/dev/null
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$BINDIR/magisk --daemon
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for file in magisk32 magisk64 magiskinit; do
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chmod 755 ./$file
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cp -af ./$file $MAGISKTMP/$file
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cp -af ./$file /data/adb/magisk/$file
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done
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cp -af ./magiskboot /data/adb/magisk/magiskboot
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cp -af ./busybox /data/adb/magisk/busybox
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ln -s ./magisk64 $MAGISKTMP/magisk
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ln -s ./magisk $MAGISKTMP/su
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ln -s ./magisk $MAGISKTMP/resetprop
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ln -s ./magisk $MAGISKTMP/magiskhide
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ln -s ./magiskinit $MAGISKTMP/magiskpolicy
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mkdir -p $MAGISKTMP/.magisk/mirror
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mkdir $MAGISKTMP/.magisk/block
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touch $MAGISKTMP/.magisk/config
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# Boot up
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$MAGISKTMP/magisk --post-fs-data
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while [ ! -f /dev/.magisk_unblock ]; do sleep 1; done
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rm /dev/.magisk_unblock
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start
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$MAGISKTMP/magisk --service
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