From patchwork Fri Aug 16 21:05:34 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 19250 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-qa0-f72.google.com (mail-qa0-f72.google.com [209.85.216.72]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id 1BB7A25E5D for ; Fri, 16 Aug 2013 21:06:10 +0000 (UTC) Received: by mail-qa0-f72.google.com with SMTP id o19sf1506363qap.3 for ; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-gm-message-state:delivered-to:from:to:cc:subject :date:message-id:in-reply-to:references:x-original-sender :x-original-authentication-results:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-unsubscribe; bh=Bnv2BbjxfskzzB8vJmTntR8uNfVi8Rz9WD/7WMRNleY=; b=XZeVBsz+wUz7JJF5BV+2DAKv56/GZFDLwmrq8P/5vCxzibHwdICtzU+S61vCzCR49E zoQrDjhoqzZZjOj4kZ9ADwifmUYzr/8ZaO5ESRggNb1v3tq+l7K1blbnT8S7kUVZOyC5 17ddpITKZI7aQK/KFmw5m2to7UFJd+YjF6OE9OW0/gjBfyuVzQFTNx789lO7XUzzXI8b 2YoGHkyj2QcO8TEGYGrb6adXDV959dwRZfVXynuNiDbZWDHXpk8S+6d8ndHmhW/JQnsa q7lDzdPeCQwxlil3mS16xgplzJfsZdNBOBn1nPylFY3QVXM3kQTUXCWA84+j+GMYTySp U2/w== X-Received: by 10.236.0.229 with SMTP id 65mr1272843yhb.15.1376687169862; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.49.84.170 with SMTP id a10ls1016322qez.20.gmail; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) X-Received: by 10.58.171.4 with SMTP id aq4mr1980189vec.26.1376687169736; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) Received: from mail-vc0-f172.google.com (mail-vc0-f172.google.com [209.85.220.172]) by mx.google.com with ESMTPS id ae9si771485vdc.132.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 16 Aug 2013 14:06:09 -0700 (PDT) Received-SPF: neutral (google.com: 209.85.220.172 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) client-ip=209.85.220.172; Received: by mail-vc0-f172.google.com with SMTP id m17so1822877vca.31 for ; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) X-Gm-Message-State: ALoCoQkJFhH8vYxe5upZ9Eskw8t37CxIzMZyBF6NNYcGhEoAZD1zf0oCPZn0b/BfgTf0c8LijwMT X-Received: by 10.52.229.73 with SMTP id so9mr2488051vdc.27.1376687169650; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patches@linaro.org Received: by 10.220.174.196 with SMTP id u4csp89433vcz; Fri, 16 Aug 2013 14:06:09 -0700 (PDT) X-Received: by 10.180.185.166 with SMTP id fd6mr671823wic.5.1376687168695; Fri, 16 Aug 2013 14:06:08 -0700 (PDT) Received: from mail-wg0-f41.google.com (mail-wg0-f41.google.com [74.125.82.41]) by mx.google.com with ESMTPS id jt1si1282616wjc.135.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 16 Aug 2013 14:06:08 -0700 (PDT) Received-SPF: neutral (google.com: 74.125.82.41 is neither permitted nor denied by best guess record for domain of julien.grall@linaro.org) client-ip=74.125.82.41; Received: by mail-wg0-f41.google.com with SMTP id l18so1645925wgh.4 for ; Fri, 16 Aug 2013 14:06:08 -0700 (PDT) X-Received: by 10.180.182.67 with SMTP id ec3mr3190195wic.1.1376687168137; Fri, 16 Aug 2013 14:06:08 -0700 (PDT) Received: from belegaer.uk.xensource.com. ([185.25.64.249]) by mx.google.com with ESMTPSA id b13sm797327wic.9.1969.12.31.16.00.00 (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 16 Aug 2013 14:06:07 -0700 (PDT) From: Julien Grall To: stefano.stabellini@eu.citrix.com, ian.campbell@citrix.com Cc: patches@linaro.org, andre.przywara@linaro.org, xen-devel@lists.xen.org, Julien Grall Subject: [RFC 02/24] xen: Introduce __initconst to store initial const data Date: Fri, 16 Aug 2013 22:05:34 +0100 Message-Id: <1376687156-6737-3-git-send-email-julien.grall@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1376687156-6737-1-git-send-email-julien.grall@linaro.org> References: <1376687156-6737-1-git-send-email-julien.grall@linaro.org> X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: julien.grall@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.220.172 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org List-ID: X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , It's possible to have 2 type (const and non-const) of data in the same compilation unit. Using only __initdata will result to a compilation error: error: $variablename causes as section tupe conflict with $variablename2 because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by: Julien Grall Acked-by: Ian Campbell --- xen/include/xen/init.h | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/include/xen/init.h b/xen/include/xen/init.h index b602577..9d481b3 100644 --- a/xen/include/xen/init.h +++ b/xen/include/xen/init.h @@ -10,6 +10,7 @@ #define __init __text_section(".init.text") #define __exit __text_section(".exit.text") #define __initdata __section(".init.data") +#define __initconst __section(".init.rodata") #define __exitdata __used_section(".exit.data") #define __initsetup __used_section(".init.setup") #define __init_call(lvl) __used_section(".initcall" lvl ".init")