From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 407D238E5D2; Mon, 9 Mar 2026 22:20:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773094861; cv=none; b=jy45Q6/f3aasdN2qrVo3GKb8Nt2eitgkbSBqxtUgYHfvMKFHU78GmUWqQuHgr9oYzkYx08T1N4Yfyhr2Lab61A/ACJguYd29zA/gUqHmDgcTGxjM37ma4G/3xk8bRwKTREpDnDfA0OgGV+v/61BcXFTIky3lKoGFQdTxpcO/tdk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773094861; c=relaxed/simple; bh=cPpaWJQ80q+Lffa6Wa0Eh87ldCBLbEMQduRkLHgrlQY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FWkc1b8JrfMkgddzPyJleBl1dAXFP0y8jfSR7UsxWHJF50NKY6RzeQoGp3q6J6UYd2QKEwpDICnf+O0SwOla2OomeLe5moiOqECTD7s0ubX/IfpfHYr4BZi/sX/jM0XJ4a9qxJA2dVxrenpeC+Jfrh+za2DUPQM/uGLYqotytw4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=l4FtqkE2; arc=none smtp.client-ip=159.69.126.157 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="l4FtqkE2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1773094851; bh=cPpaWJQ80q+Lffa6Wa0Eh87ldCBLbEMQduRkLHgrlQY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=l4FtqkE2r3xNDU+YNU5fDpID5U4KhRcECi077BNVvuAQ7eHjVs7AGtsG5ppDmyH2R DsU/qkDlIZ7U0BC9t2/AyTsfKeE2mUMLWGDZ8kcUnHC8pjcPnPoo0goxIom0ZuZtIG McB7anzqo30tlykekx0wC1giSfEHW6i5oc5PPb7s= Date: Mon, 9 Mar 2026 23:20:51 +0100 From: Thomas =?utf-8?Q?Wei=C3=9Fschuh?= To: Leo Yan Cc: Arnaldo Carvalho de Melo , Ian Rogers , Namhyung Kim , James Clark , Kees Cook , Quentin Monnet , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Bill Wendling , Justin Stitt , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Adrian Hunter , Masami Hiramatsu , William Breathitt Gray , Barry Song , Qinxin Xia , Bartosz Golaszewski , Kent Gibson , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Jonathan Cameron , David Lechner , Nuno =?utf-8?B?U8Oh?= , Andy Shevchenko , Andrew Morton , Willy Tarreau , Josh Poimboeuf , Robert Moore , Len Brown , Srinivas Pandruvada , Tejun Heo , David Vernet , Andrea Righi , Changwoo Min , Mark Brown , Steven Rostedt , Gabriele Monaco , Shuah Khan , Jiri Kosina , Benjamin Tissoires , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org Subject: Re: [PATCH v3 18/30] tools: nolibc: Append extra cflags Message-ID: References: <20260308-tools_build_fix_zero_init-v3-0-6477808123b7@arm.com> <20260308-tools_build_fix_zero_init-v3-18-6477808123b7@arm.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260308-tools_build_fix_zero_init-v3-18-6477808123b7@arm.com> Hi Leo, On 2026-03-08 16:46:23+0000, Leo Yan wrote: > Append EXTRA_CFLAGS to CFLAGS so that additional flags can be applied to > the compiler. > > Signed-off-by: Leo Yan > --- > tools/include/nolibc/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile > index 1958dda988954d8a604b28f5feb75ebb67ee2e14..b7f0385ccba14fdaa08aab6192acf0296b47cdbc 100644 > --- a/tools/include/nolibc/Makefile > +++ b/tools/include/nolibc/Makefile > @@ -105,7 +105,7 @@ headers_standalone: headers > $(Q)$(MAKE) -C $(srctree) headers_install INSTALL_HDR_PATH=$(OUTPUT)sysroot > > CFLAGS_s390 := -m64 > -CFLAGS := $(CFLAGS_$(ARCH)) > +CFLAGS := $(CFLAGS_$(ARCH)) $(EXTRA_CFLAGS) I don't think we need additional cflags in tools/include/nolibc. The only thing this Makefile does is to test-compile some headers. > headers_check: headers_standalone > $(Q)for header in $(filter-out crt.h std.h,$(all_files)); do \ Thomas