Activate default security enhancements for toolchain (gcc, glibc, binutils)

Packages describing “hardened” as local USE flag

Package“hardened” Flag Description
app-emulation/virtualbox-kvmEnable hardening and install binaries SUID
dev-libs/mimallocEnable exploit mitigations
sci-libs/libqalculateDisable unsafe functions like 'command' and variables like 'uptime'.
sys-kernel/gentoo-kernelUse selection of hardening options recommended by Kernel Self Protection Project

All packages providing a “hardened” USE flag (20)