From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 82FFAC433F5 for ; Wed, 13 Apr 2022 09:27:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=UgiBQ/zNluEVjd7NtlZcmTvZTk2Ch93Ao2D5Es8ZQZs=; b=pIDep5TN0pm5j+ 7+ht5Qk1Li4nhQZVRQOP3vA9oiBCPKBsyETDhXmFXVUbbl7/c7gQcZyWA/WlHZ7/YQ9zxrnXjAQzn NFXMQJM1nuZqSjyRIGr9JfhOPWumEsN60vBAdspRoGew00df72M1yGdyHhH8vI+4/h10lAkn7xgAt HJQwJ/mIf384JYWMy0s075F5o5OhYZTXzC2nClynYIbfXt12iYSrx2z9H2g4hWYWy3Dy/smW/IU7h 5A2mjP5dzdgTHNbXcgQ8+SDXYIITOQ0ZQ0zV4n8Vj8uVNPD7zImBzdD5AieI2vw6zRSZFNdisZoKv UIfs6sqDwVsiy/PkNEhg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1neZGa-000Jq2-F4; Wed, 13 Apr 2022 09:26:24 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1neZGX-000JpS-Jv for linux-arm-kernel@lists.infradead.org; Wed, 13 Apr 2022 09:26:23 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8334061BB5; Wed, 13 Apr 2022 09:26:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2056C385A4; Wed, 13 Apr 2022 09:26:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1649841979; bh=5qkbdtoSUFga1FxEQNjPUZWC6zfehM5uPVCkryj1jH8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=erairnHSBDpNTN5Mcu9NfjtxpwiAWWGX8i3hWCXJcP0WVBsOuDlsKdFdy2Yyxg2QK 9xkZJkrl0WrEJIufFlY4UNWYwOpNlHx0NGlatRrJKsWCCW0MnhAWOznRwJD27MG4CE z+ci5m6LffixhIE531DoruJAR5rw4rab/6Qw7sUV5+IwPAsNvFBKeP2D2n0aPlF5k6 QNq79NhGGx016B9NEfFlx19phvdqqF2rVWf6Sh21zoxZIMIsef1u/hguLIEYewf+v8 rnK/sFu71VjISrGblGmg9+auzjQwRmZXuBFXAYMSHAGrqszYR6AakA/dm3cJI2BBhT Oys8zPTaZgelw== Date: Wed, 13 Apr 2022 10:26:14 +0100 From: Will Deacon To: Nathan Chancellor Cc: Mark Rutland , linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, keescook@chromium.org, ardb@kernel.org Subject: Re: allmodconfig builds failing to link on arm64 Message-ID: <20220413092614.GD745@willie-the-truck> References: <20220408115407.GA27685@willie-the-truck> <20220408161344.GA28108@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220413_022621_733736_DEB3C000 X-CRM114-Status: GOOD ( 14.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Nathan, On Fri, Apr 08, 2022 at 11:37:24AM -0700, Nathan Chancellor wrote: > On Fri, Apr 08, 2022 at 10:17:21AM -0700, Nathan Chancellor wrote: > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 57c4c995965f..1fd16faa7f31 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -175,8 +175,6 @@ config ARM64 > select HAVE_DEBUG_KMEMLEAK > select HAVE_DMA_CONTIGUOUS > select HAVE_DYNAMIC_FTRACE > - select HAVE_DYNAMIC_FTRACE_WITH_REGS \ > - if $(cc-option,-fpatchable-function-entry=2) > select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY \ > if DYNAMIC_FTRACE_WITH_REGS > select HAVE_EFFICIENT_UNALIGNED_ACCESS > @@ -228,6 +226,17 @@ config ARM64 > help > ARM 64-bit (AArch64) Linux support. > > +config CLANG_SUPPORTS_DYNAMIC_FTRACE_WITH_REGS > + def_bool CC_IS_CLANG > + # https://github.com/ClangBuiltLinux/linux/issues/1507 > + depends on AS_IS_GNU || (AS_IS_LLVM && (LD_IS_LLD || LD_VERSION >= 23600)) > + select HAVE_DYNAMIC_FTRACE_WITH_REGS > + > +config GCC_SUPPORTS_DYNAMIC_FTRACE_WITH_REGS > + def_bool CC_IS_GCC > + depends on $(cc-option,-fpatchable-function-entry=2) > + select HAVE_DYNAMIC_FTRACE_WITH_REGS > + > config 64BIT > def_bool y FWIW, I can confirm that this fixes the problem for me: Tested-by: Will Deacon