Introduction to the Syscall Exception The syscall exception maps closely to how the Linux kernel exposes its user-space interface. The boundary covered by the syscall note primarily consists of the kernel’s user-space API (UAPI), which is implemented through header files intended for inclusion by user programs. These headers live mainly under the include/uapi/ directory (and its architecture-specific counterparts under arch/*/include/uapi/)

Identifying all copyright holders, licenses and license obligations within a Linux distribution is one of the most complex and tedious audit activities. In earlier Linux versions, before version 4.19, many source files in the tree are missing licensing information. This makes it hard for compliance tools to determine the correct license, and a manual audit is very time consuming. By