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-rw-r--r-- | docs/DISTRO_PORTING.md | 14 |
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diff --git a/docs/DISTRO_PORTING.md b/docs/DISTRO_PORTING.md index 0099a1334a..620e47e823 100644 --- a/docs/DISTRO_PORTING.md +++ b/docs/DISTRO_PORTING.md @@ -31,6 +31,20 @@ distribution: print the initial transaction it would execute during boot-up. This will also inform you about ordering loops and suchlike. +## Compilation options + +The default configuration does not enable any optimization or hardening +options. This is suitable for development and testing, but not for end-user +installations. + +For deployment, optimization (`-O2` or `-O3` compiler options), link time +optimization (`-Db_lto=true` meson option), and hardening (e.g. +`-D_FORTIFY_SOURCE=2`, `-fstack-protector-strong`, `-fstack-clash-protection`, +`-fcf-protection`, `-pie` compiler options, and `-z relro`, `-z now`, +`--as-needed` linker options) are recommended. The most appropriate set of +options depends on the architecture and distribution specifics so no default is +provided. + ## NTP Pool By default, systemd-timesyncd uses the Google Public NTP servers |