From ec280e9ec4b825ae73cdeccffeb8e72ce7dcc99d Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Thu, 6 Aug 2020 19:23:00 +0000 Subject: [PATCH] Reapply r360852 (by cem): clang: Reject %n for __attribute__((format(__freebsd_kprintf__))) A follow-up to r360849. Reported by: imp Reviewed by: emaste, imp Differential Revision: https://reviews.freebsd.org/D24786 --- contrib/llvm-project/clang/lib/AST/PrintfFormatString.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/contrib/llvm-project/clang/lib/AST/PrintfFormatString.cpp b/contrib/llvm-project/clang/lib/AST/PrintfFormatString.cpp index f3ac181214ac..0de2b112fb8a 100644 --- a/contrib/llvm-project/clang/lib/AST/PrintfFormatString.cpp +++ b/contrib/llvm-project/clang/lib/AST/PrintfFormatString.cpp @@ -317,8 +317,8 @@ static PrintfSpecifierResult ParsePrintfSpecifier(FormatStringHandler &H, case 'g': k = ConversionSpecifier::gArg; break; case 'i': k = ConversionSpecifier::iArg; break; case 'n': - // Not handled, but reserved in OpenCL. - if (!LO.OpenCL) + // Not handled, but reserved in OpenCL and FreeBSD kernel. + if (!LO.OpenCL && !isFreeBSDKPrintf) k = ConversionSpecifier::nArg; break; case 'o': k = ConversionSpecifier::oArg; break;