sudo apt-get install libxml2-dev
sudo pip install lxml

cd helper_scripts
python setup_difuze.py --help
usage: setup_difuze.py [-h] [-b TARGET_BRANCH] [-o OUTPUT_FOLDER]

optional arguments:
  -h, --help        show this help message and exit
  -b TARGET_BRANCH  Branch (i.e. version) of the LLVM to setup. Default:
                    release_38 e.g., release_38
  -o OUTPUT_FOLDER  Folder where everything needs to be setup.

python setup_difuze.py -o difuze_deps

cd InterfaceHandlers
./build.sh

make V=1 O=out ARCH=arm64 > makeout.txt 2>&1

cd helper_scripts
python run_all.py --help

usage: run_all.py [-h] [-l LLVM_BC_OUT] [-a CHIPSET_NUM] [-m MAKEOUT]
                  [-c COMPJSON] [-g COMPILER_NAME] [-n ARCH_NUM] [-o OUT]
                  [-k KERNEL_SRC_DIR] [-isclang] [-clangp CLANG_PATH]
                  [-llvmlinkp LLVMLINK_PATH] [-skb] [-skl] [-skp] [-skP]
                  [-ske] [-skI] [-ski] [-skv] [-skd] [-f IOCTL_FINDER_OUT]

optional arguments:
  -h, --help            show this help message and exit
  -l LLVM_BC_OUT        Destination directory where all the generated bitcode
                        files should be stored.
  -a CHIPSET_NUM        Chipset number. Valid chipset numbers are:
                        1(mediatek)|2(qualcomm)|3(huawei)|4(samsung)
  -m MAKEOUT            Path to the makeout.txt file.
  -c COMPJSON           Path to the compile_commands_json generated by Bear.
  -g COMPILER_NAME      Name of the compiler used in the makeout.txt, This is
                        needed to filter out compilation commands. Ex: aarch64
                        -linux-android-gcc
  -n ARCH_NUM           Destination architecture, 32 bit (1) or 64 bit (2).
  -o OUT                Path to the out folder. This is the folder, which
                        could be used as output directory during compiling
                        some kernels.
  -k KERNEL_SRC_DIR     Base directory of the kernel sources.
  -isclang              flag to indicate that clang was used to built the
                        kernel
  -clangp CLANG_PATH    Absolute path to the clang binary (if not provided,
                        the one available in the path will be used)
  -llvmlinkp LLVMLINK_PATH
                        Absolute path to the llvm-link binary (if not
                        provided, the one available in the path will be used)
  -skb                  Skip LLVM Build (default: not skipped).
  -skl                  Skip Dr Linker (default: not skipped).
  -skp                  Skip Parsing Headers (default: not skipped).
  -skP                  Skip Generating Preprocessed files (default: not
                        skipped).
  -ske                  Skip Entry point identification (default: not
                        skipped).
  -skI                  Skip Generate Includes (default: not skipped).
  -ski                  Skip IoctlCmdParser run (default: not skipped).
  -skv                  Skip V4L2 ioctl processing (default: not skipped).
  -skd                  Skip Device name finder (default: not skipped).
  -f IOCTL_FINDER_OUT   Path to the output folder where the ioctl command
                        finder output should be stored.

IOCTL:msm_lsm_ioctl:/home/difuze/kernels/pixel/msm/sound/soc/msm/qdsp6v2/msm-lsm-client.c:msm_lsm_ioctl.txt:/home/difuze/pixel/llvm_out/sound/soc/msm/qdsp6v2/llvm_link_final/final_to_check.bc
IOCTL:msm_pcm_ioctl:/home/difuze/kernels/pixel/msm/sound/soc/msm/qdsp6v2/msm-pcm-lpa-v2.c:msm_pcm_ioctl.txt:/home/difuze/pixel/llvm_out/sound/soc/msm/qdsp6v2/llvm_link_final/final_to_check.bc

cd ~/mediatek_kernel
source ./env.sh
cd kernel-3.18
# the following step may not be needed depending on the kernel
mkdir out
make O=out ARCH=arm64 tubads_defconfig
# generating compile_commands.json
bear make -j8 O=out ARCH=arm64

cd <repo_path>/helper_scripts

python run_all.py -l ~/mediatek_kernel/llvm_bitcode_out -a 1 -c ~/mediatek_kernel/kernel-3.18/compile_commands.json -n 2 -o ~/mediatek_kernel/kernel-3.18/out -k ~/mediatek_kernel/kernel-3.18 -f ~/mediatek_kernel/ioctl_finder_out

cd <repo_path>/helper_scripts
python parse_interface_output.py <ioctl_finder_out_dir> <output_directory_for_json_files>

aarch64-linux-android-gcc -Wp,-MD,fs/jbd2/.transaction.o.d  -nostdinc -isystem ...

-isclang -clangp <PATH_TO_THE_CLANG_USED_TO_BUILD_THE_KERNEL> -llvmlinkp <PATH_TO_THE_LLVM_LINK (will be in the same folder as clang)>

$ python run_all.py --help
usage: run_all.py [-h] -f F -o O [-n {manual,auto,hybrid}] [-m M]

run_all options

optional arguments:
  -h, --help            show this help message and exit
  -f F                  Filename of the ioctl analysis output OR the entire
                        output directory created by the system
  -o O                  Output directory to store the results. If this
                        directory does not exist it will be created
  -n {manual,auto,hybrid}
                        Specify devname options. You can choose manual
                        (specify every name manually), auto (skip anything that
                        we don't identify a name for), or hybrid (if we
                        detected a name, we use it, else we ask the user)
  -m M                  Enable multi-device output most ioctls only have one
                        applicable device node, but some may have multiple. (0
                        to disable)