Bug 733236 – sys-apps/systemd-245.5 error: ‘%s’ directive argument is null [-Werror=format-overflow=]

• Status: RESOLVED DUPLICATE of bug 720778
• Product: Gentoo Linux

[Description Denis Dupeyron (RETIRED) 2020-07-19 19:29:42 UTC]

Created attachment 649878 [details]
build.log

sys-apps/systemd-245.5 fails to build with the following errors:

core/path.c:616:24: error: ‘%s’ directive argument is null [-Werror=format-overflow=]
[...]
core/manager.c:1980:24: warning: argument 1 null where non-null expected [-Wnonnull]

There could be more, but the build stops.

Note that my build flags are "-O3 -march=native -fomit-frame-pointer -pipe". A combination of gcc-10 and one of the flags enabled by -O3 is probably what triggers this. I can maybe bisect, but only if you think that's useful because my laptop isn't very fast.

[Comment 1 Denis Dupeyron (RETIRED) 2020-07-19 21:22:01 UTC]

I bisected and the culprit is -fsplit-paths. Adding -fno-split-paths to -O3 does the trick.

[Comment 2 Arfrever Frehtes Taifersar Arahesis 2020-07-20 07:16:51 UTC]

https://github.com/systemd/systemd/pull/15762
https://github.com/systemd/systemd/commit/23450c897d11ccd8dfbe28cf3acca17f016e65be
https://github.com/systemd/systemd/commit/94c0c5b7eaa1529ff694318d3755181ba96ecefb

[Comment 3 Arfrever Frehtes Taifersar Arahesis 2020-07-20 07:22:13 UTC]

https://github.com/systemd/systemd/pull/15734
https://github.com/systemd/systemd/commit/08f468567d9ebb56e04eb5585eda42add6cb4cb5

[Comment 4 Denis Dupeyron (RETIRED) 2020-07-20 18:14:07 UTC]

Thanks Arfrever.

I don't think the first one touches any of the errors I was hitting. Maybe the second one?

The earliest I can test this is next weekend.

[Comment 5 Arfrever Frehtes Taifersar Arahesis 2020-07-20 20:28:23 UTC]

First commit even mentions exactly the same error in core/path.c:616:24 which you saw.

[Comment 6 Mike Gilbert 2020-07-26 17:06:37 UTC]

*** This bug has been marked as a duplicate of bug 720778 ***