build.md

it contains the steps to build arm/arm64 vm for .net core debugging.

1. Setup wsl2 + ubuntu distribution on winddows 10

2. Install the following prerequired softwares on wsl2 + ubuntu

   • make
   • unzip
   • gcc
   • g++
   • libncurses-dev
   • liblttng-ust-dev

sudo apt-get update
sudo apt install make unzip gcc g++ libncurses-dev liblttng-ust-dev

3. Clone buildroot and 4dotnet to your home folder.

    git clone https://github.com/oldzhu/buildroot.git 
    git clone https://github.com/oldzhu/4dotnet.git

4. Run the below commands to update the default config to build vm.

for arm:

    cd buildroot
    make distclean
    make BR2_EXTERNAL=~/4dotnet defconfig BR2_DEFCONFIG=~/4dotnet/savedconfigs/arm/br2.defconfig

for arm64:

    cd buildroot
    make distclean
    make BR2_EXTERNAL=~/4dotnet defconfig BR2_DEFCONFIG=~/4dotnet/savedconfigs/arm64/br2.defconfig

5. Run the below make command to begin the build. It could take serveral housrs or even days depends on your system power.

    export PATH=`echo $PATH|tr -d ' '`
    make

6. Done and now you can go to Using the arm VM to debug or Using the arm64 VM to debug to enjoy a .netcore app debugging.