From patchwork Fri Sep 18 20:14:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 11786201 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 370A792C for ; Fri, 18 Sep 2020 20:19:24 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 7294720684 for ; Fri, 18 Sep 2020 20:19:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="qivt17C4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7294720684 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-19943-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 25746 invoked by uid 550); 18 Sep 2020 20:15:56 -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 25669 invoked from network); 18 Sep 2020 20:15:55 -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=vY4wvL91lX+XoPJtjETBJ0Jod2fr7hSe9gEwviH1PQg=; b=qivt17C4c3k3DwY8yxkDax/XSYLbBnJNnBYPw2ZM9Gn/ZE0fIpcsHSVm+mQlhKjakH ACLHPBDSrN9QhIs+2oMundPSpouSZPRbj9HW414qGcxUL8RP/Qw81qBg3hFyQmOJVd70 36vk+fW3SMvGQBxWNMXr5dCR/MCgbY301VpVmDNnr0VCgN2sZLUw+BrVWaduLhzw5SZv rv8S8puJ+RnceNDh0B4fMoiQfngBeVpOdbwRVQ/hhKlaWSqX5BsgHyNznIZZ8LnydZBh YrVXnwczP2gFi6vqoYxTjLvwOSb3+MWNcxlFSbiyja8iKC/0zZ8liDgrrBt8Hk4cr/64 UQCQ== 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=vY4wvL91lX+XoPJtjETBJ0Jod2fr7hSe9gEwviH1PQg=; b=goLaVP/IQIkyiQ8KE5QzC6c+d0NpXw6SOCQ8FE5Gw703C1OFSdG/JOZ7agSK3XIET/ 7/R69SGM5dEicxNZBdlqkznlMdIboZTtOM9XYKU+u5PsUfLuqGxVg26kBVbURewVp7f9 oKVgGvLYJAKw+Wjnz9hAchy2XokoTvoOhPGQXkPPhNMltEEYEY/FormMLDYQhKNayRZB A+AMFnNJgZMeqvgraGOFFlKt0+Yy70mjujRuJAnz/qlENL8gpZQwMN8EZJCyr2bh6U1K qa3yKqK6Tre/1KftHmN6QlblEndXsTTNb95bKVj/z9Er8Lk4UwKPvNLKKIqAH2flVIVI pcRg== X-Gm-Message-State: AOAM530Uym7pl4PN5AjzobTGRfqQpqJeiK/CE4FrNv4ZeqHwk3w0eExx P+2tcWh9tFSb9O1YGQ15nBLtfzVqmlQ5b6dOgK8= X-Google-Smtp-Source: ABdhPJxx/ZB+iAIYYGWthfZ5MCRw4ljJiAxyhQbM9fSoZJcW8J3//Xuvzi/v3xFDYUKOn6kD1n3mDEB16b4Qbpmiyyg= 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:ad4:55ec:: with SMTP id bu12mr35584454qvb.0.1600460143930; Fri, 18 Sep 2020 13:15:43 -0700 (PDT) Date: Fri, 18 Sep 2020 13:14:33 -0700 In-Reply-To: <20200918201436.2932360-1-samitolvanen@google.com> Message-Id: <20200918201436.2932360-28-samitolvanen@google.com> Mime-Version: 1.0 References: <20200918201436.2932360-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH v3 27/30] arm64: allow LTO_CLANG and THINLTO to be selected From: Sami Tolvanen To: Masahiro Yamada , Will Deacon Cc: Peter Zijlstra , Steven Rostedt , 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 6d232837cbee..2699fc5d332e 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