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kern.mk: -Wno-error=stringop-overflow for gcc due to false positives
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Authored by rlibby on Thu, Nov 28, 11:51 PM.

Details

Summary

Demote gcc's Wstringop-overflow to Wno-error due to false positives.
E.g. the riscv64 build with gcc 8.3.0 has been failing with this warning
since r355062 [1]. A bug has been filed with gcc [2]. The warning was
first introduced in gcc 7.1 [3]. Hopefully we can avoiding suppressing
the warning in future gcc versions.

[1] https://ci.freebsd.org/job/FreeBSD-head-riscv64-build/16691/
[2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92718
[3] https://gcc.gnu.org/wiki/WarningHistory

Test Plan

make CROSS_TOOLCHAIN=riscv64-gcc TARGET=riscv TARGET_ARCH=riscv64 buildkernel KERNCONF=GENERIC

Diff Detail

Repository
rS FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

rlibby created this revision.Thu, Nov 28, 11:51 PM
markj accepted this revision.Fri, Nov 29, 2:15 AM
This revision is now accepted and ready to land.Fri, Nov 29, 2:15 AM