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mhorne
jrtc27

Commits

rG91cdb8f0c1c4: riscv: Enable the zifencei extension explicitly in -march
rG31b259049e2b: riscv: Enable the zifencei extension explicitly in -march

Summary

clang is more tolerant and implies this extension whereas GCC is
stricter and requires it to be included.

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rG FreeBSD src repository

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Event Timeline

jhb created this revision.Jan 30 2026, 3:06 PM

Herald added a subscriber: imp. · View Herald TranscriptJan 30 2026, 3:06 PM

jhb requested review of this revision.Jan 30 2026, 3:06 PM

Harbormaster completed remote builds in B70236: Diff 170778.Jan 30 2026, 3:06 PM

jhb added a parent revision: D54964: sdt: Use the "cc" operand modifier for the address of probes for GCC 15+.Jan 30 2026, 3:06 PM

jhb added a child revision: D54966: riscv: Don't use the '#' modifier with '%b'.

Need to verify this also builds with clang. Jess believes that clang 17 and later will accept this.

mhorne accepted this revision.Jan 30 2026, 4:56 PM

This revision is now accepted and ready to land.Jan 30 2026, 4:56 PM

Closed by commit rG31b259049e2b: riscv: Enable the zifencei extension explicitly in -march (authored by jhb). · Explain WhyJan 31 2026, 5:21 PM

This revision was automatically updated to reflect the committed changes.

jhb added a commit: rG31b259049e2b: riscv: Enable the zifencei extension explicitly in -march.

jhb added a commit: rG91cdb8f0c1c4: riscv: Enable the zifencei extension explicitly in -march.Fri, Apr 24, 3:30 PM

riscv: Enable the zifencei extension explicitly in -march
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Diff 170878

sys/conf/kern.mk

riscv: Enable the zifencei extension explicitly in -marchClosedPublicActions

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Diff 170878

sys/conf/kern.mk

riscv: Enable the zifencei extension explicitly in -march
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