Differential D54965

riscv: Enable the zifencei extension explicitly in -march
ClosedPublic
Actions

Authored by jhb on Jan 30 2026, 3:06 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Fri, Mar 13, 11:21 AM

	Unknown Object (File)
	Thu, Mar 12, 1:43 PM

	Unknown Object (File)
	Thu, Mar 12, 5:59 AM

	Unknown Object (File)
	Thu, Mar 12, 12:33 AM

	Unknown Object (File)
	Feb 27 2026, 9:37 PM

	Unknown Object (File)
	Feb 21 2026, 12:58 PM

	Unknown Object (File)
	Feb 20 2026, 4:06 PM

	Unknown Object (File)
	Feb 17 2026, 2:59 AM

View All 19 Files

Subscribers

Details

Reviewers

mhorne
jrtc27

Commits

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.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 70236
Build 67119: arc lint + arc unit

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.

Revision Contents
Changeset List

Path

Size

sys/

conf/

2 lines

Diff 170778

sys/conf/kern.mk

Loading...