From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 71947335567; Wed, 5 Nov 2025 19:16:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762370179; cv=none; b=ByPlb7mT7LS+O4DhwCuA/wm0nL3sn55kB8rDxpvEC7Kr8KlzLGKw9PHzhOjdk1wRlu5AKMNMPAdYT2SQypp8XCZ4sTl/bMdQ56IieiSG/Uu6BqDT1QDD+gbbNUQrNQsXM+uCDqS9gns76wvubekLU7QkE8p75V30lu7RjWW0yr8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762370179; c=relaxed/simple; bh=LvFCw2GT3XSKjjbezDneebu0Zzj2K249jCRRso+s0/0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=flPP8IfMndMSijuQ2OS3NgzZYaCu543lW0OVvi8m5pM+RBZv8EHwxrUoZY4lvsbDag1RG2/weYjxAt68ILGC6ZJCdSou4ZJVPzoClsiEclYoc7YzuzjdzjFxhgKs4YHpdO8RIq5RRNAqf3liFGhkox0i6cexvbDXG1LQhnee+rA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=W94hmpWc; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="W94hmpWc" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=y9nnRAMUrIWQISQm8qOZ3DHfH7zNFoiFJNKHLmrXVU8=; b=W94hmpWcKE/3rDJ4fjm+B1arFf gsUk0+R3nAphcDGlZR67gTwSXK4XiyjIkmP7c1uAmGCzkAcpM+64qwFePLIVvz9vAkANR1TEAziQJ 5R7IWBUoQisKmjmv/1hf0BUDYMwR99ypvKt8u1YjFUacxKIGNacsxTRYNJ43gG5g+vCiyX5S0uLif /vSlDpN8MLrcQL4I+9g4ITuKAGRExYA7KwIFKRPQjP4HDKkJG5AAnVwiNiM/6ZYd2l1hcjiHUgPOP Fl9az1dNveiq7FDJ2YWxSGQ/dDS9jKcUlIN8j3NePGVlIrOSTONqwkUMpSNDfDYHw/3f5OBpYGFIS mvx34EqA==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGi7h-00000002nKX-2Lf8; Wed, 05 Nov 2025 18:20:45 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id B3EB43001D4; Wed, 05 Nov 2025 20:16:13 +0100 (CET) Date: Wed, 5 Nov 2025 20:16:13 +0100 From: Peter Zijlstra To: Nathan Chancellor Cc: Stephen Rothwell , Josh Poimboeuf , Linux Next Mailing List , Linux Kernel Mailing List , linux-kbuild@vger.kernel.org, Nicolas Schier Subject: Re: linux-next: new objtool warnings Message-ID: <20251105191613.GA1831451@noisy.programming.kicks-ass.net> References: <20251031111515.09c9a4ed@canb.auug.org.au> <20251103091006.GV3245006@noisy.programming.kicks-ass.net> <20251103203256.5ac39302@canb.auug.org.au> <20251103093804.GY3245006@noisy.programming.kicks-ass.net> <20251105143027.214f491c@canb.auug.org.au> <20251105085637.GO4067720@noisy.programming.kicks-ass.net> <20251105100014.GY4068168@noisy.programming.kicks-ass.net> <20251105100202.GZ4068168@noisy.programming.kicks-ass.net> <20251105101010.GA4068168@noisy.programming.kicks-ass.net> <20251105170715.GA706366@ax162> Precedence: bulk X-Mailing-List: linux-kbuild@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: <20251105170715.GA706366@ax162> On Wed, Nov 05, 2025 at 10:07:15AM -0700, Nathan Chancellor wrote: > $ make -skj"$(nproc)" ARCH=x86_64 vmlinux.o > Makefile:1912: warning: overriding recipe for target 'vmlinux.o' > Makefile:1150: warning: ignoring old recipe for target 'vmlinux.o' > make[2]: *** No rule to make target 'vmlinux.o'. > > When did this work? Dunno, I have vague memories of it working. The only reason I tried is that vmlinux seems to be misbehaving. > As for the second comment, if I build the vmlinux target, I see: > > AR built-in.a > AR vmlinux.a > LD vmlinux.o > MODPOST vmlinux.symvers > CC .vmlinux.export.o > UPD include/generated/utsversion.h > CC init/version-timestamp.o > KSYMS .tmp_vmlinux0.kallsyms.S > AS .tmp_vmlinux0.kallsyms.o > LD .tmp_vmlinux1 > NM .tmp_vmlinux1.syms > KSYMS .tmp_vmlinux1.kallsyms.S > AS .tmp_vmlinux1.kallsyms.o > LD .tmp_vmlinux2 > NM .tmp_vmlinux2.syms > KSYMS .tmp_vmlinux2.kallsyms.S > AS .tmp_vmlinux2.kallsyms.o > LD vmlinux.unstripped > NM System.map > SORTTAB vmlinux.unstripped > OBJCOPY vmlinux > OBJCOPY modules.builtin.modinfo > GEN modules.builtin # make O=tmp-build clean # make O=tmp-build allmodconfig # make O=tmp-build -j64 vmlinux 2>&1 | grep "\[M\]" CC [M] sound/sound_core.o CC [M] virt/lib/irqbypass.o AS [M] arch/x86/crypto/twofish-x86_64-asm_64.o CC [M] arch/x86/crypto/twofish_glue.o CC [M] samples/vfio-mdev/mtty.o CC [M] sound/ac97_bus.o AS [M] arch/x86/crypto/twofish-x86_64-asm_64-3way.o CC [M] arch/x86/crypto/twofish_glue_3way.o