Date: Thu, 10 Nov 2022 21:49:02 +0000 From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 264497] -fcf-protection causes 'illegal hardware instruction' on Geode Message-ID: <bug-264497-29464-qYE6KN6rgO@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-264497-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-264497-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264497 --- Comment #4 from commit-hook@FreeBSD.org --- A commit in branch stable/13 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3Db0da3d887c4b3e9e1b35f4c0e9696fa6d= 339e82f commit b0da3d887c4b3e9e1b35f4c0e9696fa6d339e82f Author: Ed Maste <emaste@FreeBSD.org> AuthorDate: 2022-11-04 15:59:49 +0000 Commit: Ed Maste <emaste@FreeBSD.org> CommitDate: 2022-11-10 21:47:48 +0000 Clang: Add Diags for targets pre to i686 for -fcf-protection Intel Control-flow Enforcement Technology (CET) provides new instructions `endbr32/64` for the indirect branch control. They are NOPs on i686 and new targets. We need to check for that in case it crashes on older targets. PR: 264497, 267401 Reviewed by: dim MFC after: 1 week Obtained from: LLVM commit 52516782972730ff065a34123a9d8876da08c254 Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D37268 (cherry picked from commit 9c231325e77b1989c006daf083a3e9bd143c3d07) contrib/llvm-project/clang/lib/Basic/Targets/X86.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=
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