[$] The future of GCC plugins in the kernel

The process of hardening the kernel can benefit in a number of ways fromsupport by the compiler. In recent years, the Kernel Self Protection Project has broughtthis support from the grsecurity/PaXpatch set into the kernel in the form of GCCplugins; LWN looked into that process backin 2017. A recent discussion has highlighted the fact that the use ofGCC plugins brings disadvantages as well, and some developers would prefer to see those plugins replaced.