From patchwork Wed Jun 24 20:31:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 11624311 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 3144090 for ; Wed, 24 Jun 2020 20:36:19 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 8E9332080C for ; Wed, 24 Jun 2020 20:36:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="A1OVxmoh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8E9332080C 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-19129-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 3756 invoked by uid 550); 24 Jun 2020 20:33:48 -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 3657 invoked from network); 24 Jun 2020 20:33:48 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=vVvCAj3rXahkiTyB3fdf4JdbPFhKMTMNyBg/koJzOHM=; b=A1OVxmohREiIQE9uWobns3DZjU2BjnF5/uRv4vfcaF2sodOxkh4sxle+6JGl3ADtOZ 3fmTbkzX8W7ahG1bTGpXMMU9CdKC8UZUye2VucpEx7325i3QESTUcI83ndSOc6E8Kmzu N5PlhLkCWO4j4sIvQEk9eacQtD+bX2UY3Y5a4I1dsdat2Jm3e0YTj4ppvoCyl2YlPdbY ZyEZAXO2uSqBN9R05BjPoqjam4RsnD1PfD+i8NAuT2L+OMarD3RxLispCXwkir37c5B5 L+Lu+ZWTjo7NmJwPgVCLx0NgAf7Qq1Qws+DG9FZOXnsn8vOlmmibTipSbU4GNNmhC8bb 0u7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=vVvCAj3rXahkiTyB3fdf4JdbPFhKMTMNyBg/koJzOHM=; b=lqeVIZXChy6tyJT7ibfzwom1PjsZxqpjfewVgyL5KqOvHjxBjwqPWK7FHF1NSfQBpU dxnJ0d4PVIbVH9lxrNL139Wxr2MbYPvmfUad5bRmZQvYM9RvIPuvxu0zauSCTO10HDe0 ZR6yR+NOcnS22zdpo72hncBX9qI9YviMOYFBBDIWYNNtDO1qqXg7OfhHrawzkyBOC3RN 5YPpC/uhgCbeo76V7xKZ96CivbIecIsbCntxi9UWqZGTvS2cdErd4Rd7ATxwEKpqcHBq BpqikUYFMfZCm/y1apI/v5EZVO98AQFeahkRpyPWEdvnC63vbvr48wpYDYwmZc2XMXAi YyUA== X-Gm-Message-State: AOAM531k+Ocutm+tliS84cTHRtm8yravoz1PRtamI3sEMLQMZINN2h/K uhkGkVGPhcy8EuNTaSsq6ItpbDsK+B47oS+6sFs= X-Google-Smtp-Source: ABdhPJxFwd5sYHcpKP7HH5wq1l18/N0yS86uUmxUS0eTeAHpLUaXB5pBxjwc02CZmZmfKSgokc5xwqXiDOu/w8PP8nk= X-Received: by 2002:a25:7450:: with SMTP id p77mr23380392ybc.155.1593030816256; Wed, 24 Jun 2020 13:33:36 -0700 (PDT) Date: Wed, 24 Jun 2020 13:31:59 -0700 In-Reply-To: <20200624203200.78870-1-samitolvanen@google.com> Message-Id: <20200624203200.78870-22-samitolvanen@google.com> Mime-Version: 1.0 References: <20200624203200.78870-1-samitolvanen@google.com> X-Mailer: git-send-email 2.27.0.212.ge8ba1cc988-goog Subject: [PATCH 21/22] x86, relocs: Ignore L4_PAGE_OFFSET relocations From: Sami Tolvanen To: Masahiro Yamada , Will Deacon Cc: 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 L4_PAGE_OFFSET is a constant value, so don't warn about absolute relocations. Signed-off-by: Sami Tolvanen --- arch/x86/tools/relocs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index ce7188cbdae5..8f3bf34840ce 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -47,6 +47,7 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = { [S_ABS] = "^(xen_irq_disable_direct_reloc$|" "xen_save_fl_direct_reloc$|" + "L4_PAGE_OFFSET|" "VDSO|" "__crc_)",