Date: Tue, 16 Dec 2025 19:16:07 +0000 From: Dag-Erling=?utf-8?Q? Sm=C3=B8rg?=rav <des@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: ce9557d4ee17 - main - libc/amd64: Disable baseline version of stpncpy() Message-ID: <6941aff7.26359.29dd85c8@gitrepo.freebsd.org>
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The branch main has been updated by des: URL: https://cgit.FreeBSD.org/src/commit/?id=ce9557d4ee174267504a63b2c8f6009be27368c9 commit ce9557d4ee174267504a63b2c8f6009be27368c9 Author: Dag-Erling Smørgrav <des@FreeBSD.org> AuthorDate: 2025-12-16 19:04:51 +0000 Commit: Dag-Erling Smørgrav <des@FreeBSD.org> CommitDate: 2025-12-16 19:14:44 +0000 libc/amd64: Disable baseline version of stpncpy() This implementation appears to be broken on some CPUs. Disable it until the issue can be investigated and fixed. PR: 291720 Fixes: 66eb78377bf1 ("libc/amd64: fix overread conditions in stpncpy()") Fixes: 90253d49db09 ("lib/libc/amd64/string: add stpncpy scalar, baseline implementation") --- lib/libc/amd64/string/stpncpy.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/libc/amd64/string/stpncpy.S b/lib/libc/amd64/string/stpncpy.S index df22bb9f0c53..764ee1d4008c 100644 --- a/lib/libc/amd64/string/stpncpy.S +++ b/lib/libc/amd64/string/stpncpy.S @@ -36,7 +36,9 @@ .set stpncpy, __stpncpy ARCHFUNCS(__stpncpy) ARCHFUNC(__stpncpy, scalar) +#if 0 /* temporarily disabled cf. PR 291720 */ ARCHFUNC(__stpncpy, baseline) +#endif ENDARCHFUNCS(__stpncpy) ARCHENTRY(__stpncpy, scalar)help
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