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Date:      Fri, 24 Apr 2026 15:29:24 +0000
From:      John Baldwin <jhb@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org
Subject:   git: 91cdb8f0c1c4 - stable/15 - riscv: Enable the zifencei extension explicitly in -march
Message-ID:  <69eb8c54.35eec.5ff2ed7@gitrepo.freebsd.org>

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The branch stable/15 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=91cdb8f0c1c40563344969d969b7505c32c980b6

commit 91cdb8f0c1c40563344969d969b7505c32c980b6
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2026-01-31 17:10:56 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2026-04-24 15:26:39 +0000

    riscv: Enable the zifencei extension explicitly in -march
    
    clang is more tolerant and implies this extension whereas GCC is
    stricter and requires it to be included.
    
    Reviewed by:    mhorne
    Differential Revision:  https://reviews.freebsd.org/D54965
    
    (cherry picked from commit 31b259049e2b932ae6527d1dc850c2bec58e94e0)
---
 sys/conf/kern.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk
index 31036c4080a1..958203c3dedd 100644
--- a/sys/conf/kern.mk
+++ b/sys/conf/kern.mk
@@ -166,7 +166,7 @@ INLINE_LIMIT?=	8000
 # code model as "medium" and "medany" respectively.
 #
 .if ${MACHINE_CPUARCH} == "riscv"
-CFLAGS+=	-march=rv64imafdch
+CFLAGS+=	-march=rv64imafdch_zifencei
 CFLAGS+=	-mabi=lp64
 CFLAGS.clang+=	-mcmodel=medium
 CFLAGS.gcc+=	-mcmodel=medany


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