# Must be configured by the user
ANDROID_NDK := /opt/android-ndk

# Constants and makefile shit used in build
mkfile_path = $(abspath $(lastword $(MAKEFILE_LIST)))
current_dir = $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))

## NDK configuration.
PLATFORM_VERSION     = 19
NDK_ARCH             = arm
NDK_ABI              = linux-androideabi
NDK                  = $(ANDROID_NDK)
NDK_COMP_VER         = 4.9
NDK_HOSTARCH         = linux-x86_64
NDK_TOOLS            = $(NDK)/toolchains/$(NDK_ARCH)-$(NDK_ABI)-$(NDK_COMP_VER)/prebuilt/$(NDK_HOSTARCH)/bin
NDK_SYSROOT          = $(NDK)/platforms/android-$(PLATFORM_VERSION)/arch-$(NDK_ARCH)
NDK_INC              = $(NDK)/platforms/android-$(PLATFORM_VERSION)/arch-$(NDK_ARCH)/usr/include
NDK_LIB              = $(NDK)/platforms/android-$(PLATFORM_VERSION)/arch-$(NDK_ARCH)/usr/lib

## Compiler and compilation flags
CC                   = $(NDK_TOOLS)/$(NDK_ARCH)-$(NDK_ABI)-gcc
CFLAGS               = --sysroot=$(NDK_SYSROOT) -fPIE -pie -mthumb -O3 -DNO_SECCOMP -I$(NDK_INC) \
							  -std=gnu99 -Wall -Werror
LDFLAGS              = --sysroot=$(NDK_SYSROOT) -fPIE -pie

# Exploit
OUT                  = $(current_dir)/Out/Bin
RADAMSA_SRC          = src

all: clone bin
.PHONY: all radamsa.c

clone:
	git clone https://github.com/aoh/radamsa.git $(RADAMSA_SRC)
	#Checkout revision to make sure whole solution compiles
	cd src && git checkout 1a9cc03fda47dd3706ef69f4ad971f66b273a324

radamsa.c:
	$(MAKE) -C $(RADAMSA_SRC) radamsa.c
	patch -p1 < android.patch

bin: radamsa.c
	mkdir -p $(OUT)
	$(CC) $(CFLAGS) -o $(OUT)/radamsa.o -c $(RADAMSA_SRC)/radamsa.c
	$(CC) $(LDFLAGS) -o $(OUT)/radamsa $(OUT)/radamsa.o -ldl

clean:
	rm -rf $(OUT)
	rm -rf $(RADAMSA_SRC)

push:
	adb push $(OUT)/radamsa /data/app/