From patchwork Fri Oct 9 16:13:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 11826573 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 B5513139F for ; Fri, 9 Oct 2020 16:15:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93EE822282 for ; Fri, 9 Oct 2020 16:15:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="tcYmIPBm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389877AbgJIQPh (ORCPT ); Fri, 9 Oct 2020 12:15:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389833AbgJIQOw (ORCPT ); Fri, 9 Oct 2020 12:14:52 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E8B5C0613B7 for ; Fri, 9 Oct 2020 09:14:31 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id s14so9388026ybl.10 for ; Fri, 09 Oct 2020 09:14:31 -0700 (PDT) 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=ikrbNi1n+JHv/v6pgNeNHRRr1Bi+YQ52wR6bQ2Iekes=; b=tcYmIPBmAJ4LMMF7Goo8MPewpphHHyqOReS8Yzjkp758pdRkXSRJFwYPN4LJhRf5aA pN9Uh5BwkuYUqZQemLzTTRXc2IUbCtQKHNjN5mIcJ0Yo/YCauyC18trSfmUSzycFDhkQ Mw/NRr5iZqjHUGg7OFZdC6jshO1bqHZmLEAcRj1iPIhFpHCfYo3PJz5q+q/Uk+lDZyQS v2YSMSnN1TCWlH3GRIGFB5nX31muKzjkKWdKT2ld17JmgpAwOruVsIlTZw6HcTZPePYd us6oLH9w7WGbGMX1ZGw9yoahG1e8nob8rvJYyjTD8MyQlv2UIB6ZpCnVJZSKFxMRhVx5 0KLw== 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=ikrbNi1n+JHv/v6pgNeNHRRr1Bi+YQ52wR6bQ2Iekes=; b=pCYkC/tYE7rPZ4uNGUyeF+T5XoPIQFHA+ybFxmJXulsNZHIGE1F+iPX9XOqiugOzWi eLz8ASQ70dVkMOhvUwjCfp1DdHwAuiGUll5TBd/OpO12c/jAHR9gp+2Ezy+kadKOBnHj Sps923Jmh3ThQVcDkD3jHe6smHlMm8oFzQ50ND/94h7oyK4aRRwTa9tuTJ2g6os0ScPr rxcBOOiTipVZ5ylrYE3EBKsXnAOI7oUVypzY6YU9kYEVYteDwMcYxI/XiAeHmr/fnC4F MXHQiqlQlnu6FxtOciFt4MlP0FQZ0cSCUCwptlOx4edR37m5XMfixPXcB3JjuJT+pCBK OoJw== X-Gm-Message-State: AOAM530Q2rR1C+7aYRwklgHkbAide14mjH9xsThCHhR09ZnWIRkmuCGp saONi4UL9VysEjgFzcJKu5lHqk1lXjp/JAWpHJY= X-Google-Smtp-Source: ABdhPJxXVPk5t6WuDRtw2kDT1l/kkKrV5Ux4Ln/BVu0jbM2WltiZb9XyefgV8OgdP7tNsodZl6ZQz6Mkv7JwoOsKQcI= 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:a25:388d:: with SMTP id f135mr18426175yba.54.1602260070433; Fri, 09 Oct 2020 09:14:30 -0700 (PDT) Date: Fri, 9 Oct 2020 09:13:34 -0700 In-Reply-To: <20201009161338.657380-1-samitolvanen@google.com> Message-Id: <20201009161338.657380-26-samitolvanen@google.com> Mime-Version: 1.0 References: <20201009161338.657380-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.1011.ga647a8990f-goog Subject: [PATCH v5 25/29] 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 Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org 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