GPLv3 has a framework for exceptions built-in Yes Section 7. But GPLv2 (Linux Kernel) doesn't. My core point is adding exceptions to FOSS compiler licenses is

GPLv3 has a framework for exceptions built-in Yes Section 7. But GPLv2 (Linux Kernel) doesn't. My core point is adding exceptions to FOSS compiler licenses is slightly required to avoid technical legal ambiguity with their output.