Toolchains requirements
A toolchain is a minimal system directory hierarchy which can be used inside a jormungandr sandbox.
The common Linux system's /dev, /proc and /sys directories
are exported from the host to the sandbox, allowing accesses to devices.
The toolchain must provide a set of directories and files:
/etc/passwd: The users files, users0(root) and1000are required./etc/group: The groups files, groups0(root) and1000are required./tmp: A directory, where atmpfsis mounted./usr/binand/usr/sbin: Directories where binary executables are located./var/bsys: A directory, where the bsys is mounted read-only./var/sysroot: A directory, where the sysroot is mounted./var/src: A directory, where the srcdir is mounted./var/obj: A directory, where the objdir is mounted./var/dest: A directory, where the destdir is mounted.