From patchwork Tue Sep 29 21:46:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 11807203 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 46397618 for ; Tue, 29 Sep 2020 21:50:50 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 8664520774 for ; Tue, 29 Sep 2020 21:50:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="mjtEviXm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8664520774 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-20056-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 3697 invoked by uid 550); 29 Sep 2020 21:47:45 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Delivered-To: mailing list kernel-hardening@lists.openwall.com Received: (qmail 3600 invoked from network); 29 Sep 2020 21:47:44 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=HR6xYTbNbcDM2Zx8OyOOjD6y5MQ06zsj0pUhq+j+6f0=; b=mjtEviXmAKLxRM/LKJDKCHLIap39YYCJi8bXUSknQxexGmScOixPfgLk2saryOKVhr MDXdwtc03Qsk8BhzaMB6wWLfJxFsJFr3vbeje5KUt1CCBDcvypxfH4Fd/DWdOskLuiWX NuoS4Bfi9pPbelk7+Wps01W1gREOYAgy0hs0foMuoNPzPZHoq/3Nbj/lsE5jTNdKMozj B1pDJbVp/H5WbOFBXWVr5QnvhRybtlvviWImhHwfWGzZfBrzqfvE+v/WN27Qnhw99flS d+zHsrVrZeZ906dvjvCq1dGlmBlNMTipr0bhZn+88+kegFwV/4iyBn9hGct0i3bRdod1 YlfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=HR6xYTbNbcDM2Zx8OyOOjD6y5MQ06zsj0pUhq+j+6f0=; b=n2U9ptF9jumMsMEZQSDP+p+7dgDgX4hpw9z4OQLhPiJDIJF3F2zELwiFjnlwIJW9RV Fsw4PXLMfgujltzxrNwWhuPTssgB+Y3u1i0ywgXeXxBXxFhaelhROO3RLWs+o8VH7MoD i2q73YVRnq0O5/nNUXAO1fBAVDPiTG58L+kyaokeyExubIJaWuwWINFr5joiCKa6LecL cuX5Vgdy9nKLxYa8Vcb3QjvBsCwFxCHfg56tH1FpK97dRjXLPkrIu3wnfbqBIpoeDvsP q3GBOCzu+BFlFPqlbCvH9PQaDqwsnGcq7SGEoyMgoMPST3ZzzgWIkT64VkrdpubkFb2r g46g== X-Gm-Message-State: AOAM533PrEMqU4ja8A3cfF1QQiosP+eMtnYU/gNgEEBCL19Y5QZw4bUt J4SM5xFv8XUSdtFT2BIgH8L33hT9mTFXbqABiN0= X-Google-Smtp-Source: ABdhPJzU2WBEA+8eGCg04PobSkCT+PMZ1E++tYvTMvMYCJ02D4tu/Rlfu13A0+WZqSX+Koxe9SboRRHBjqEXIi3STU4= Sender: "samitolvanen via sendgmr" X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f693:9fff:fef4:1b6d]) (user=samitolvanen job=sendgmr) by 2002:a0c:d682:: with SMTP id k2mr6249286qvi.27.1601416052963; Tue, 29 Sep 2020 14:47:32 -0700 (PDT) Date: Tue, 29 Sep 2020 14:46:28 -0700 In-Reply-To: <20200929214631.3516445-1-samitolvanen@google.com> Message-Id: <20200929214631.3516445-27-samitolvanen@google.com> Mime-Version: 1.0 References: <20200929214631.3516445-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v4 26/29] arm64: allow LTO_CLANG and THINLTO to be selected From: Sami Tolvanen To: Masahiro Yamada , Will Deacon , Steven Rostedt Cc: Peter Zijlstra , Greg Kroah-Hartman , "Paul E. McKenney" , Kees Cook , Nick Desaulniers , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org, Sami Tolvanen Allow CONFIG_LTO_CLANG and CONFIG_THINLTO to be enabled. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index ad522b021f35..7016d193864f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -72,6 +72,8 @@ config ARM64 select ARCH_USE_SYM_ANNOTATIONS select ARCH_SUPPORTS_MEMORY_FAILURE select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK + select ARCH_SUPPORTS_LTO_CLANG + select ARCH_SUPPORTS_THINLTO select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG) select ARCH_SUPPORTS_NUMA_BALANCING