From patchwork Wed Aug 16 15:34:36 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luc Van Oostenryck X-Patchwork-Id: 9903979 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 66A4C60231 for ; Wed, 16 Aug 2017 15:35:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 58DCA2855D for ; Wed, 16 Aug 2017 15:35:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4D70B22B27; Wed, 16 Aug 2017 15:35:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E661022B27 for ; Wed, 16 Aug 2017 15:35:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751620AbdHPPf1 (ORCPT ); Wed, 16 Aug 2017 11:35:27 -0400 Received: from mail-wr0-f195.google.com ([209.85.128.195]:38889 "EHLO mail-wr0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751580AbdHPPf1 (ORCPT ); Wed, 16 Aug 2017 11:35:27 -0400 Received: by mail-wr0-f195.google.com with SMTP id g32so3683197wrd.5 for ; Wed, 16 Aug 2017 08:35:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=A2ItbUWjjuOMEFMLOS1yt26BA/zrzZgcm9AglatNeIw=; b=B6g936hFmkY+UyhpMShXn4xTMiUIk6joDAfDOhB5Nm/M+e1Ke8z6GJ4SdPMV7Od/Sn seWLxPJz955KG2wn7cTmUl5f1nDOQyFdxGLKE2jYK+bkwzYGx665klw9zCEYSodycYpq dojRdEfZEboW2igOJZ/MO0awaEtREjfV0JkQAKwleIQ397jCIg+Nu/N7f6qBehBhnZ5T dfXwp3cyvqDSMRSOICAx8sgcu23Vsjv05L5F4tM+ask60DbFtS8KSL1m10WN3KA/I5Q5 TcbRv2CSgNCa8N+WWjEEX0GX9/JaZBTHxCpzAVNWy3p0TY3Sx5Vf59mW4gZwILviZEFH M7hg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=A2ItbUWjjuOMEFMLOS1yt26BA/zrzZgcm9AglatNeIw=; b=tjgTV7AwkX/I3x/bvDSPFCC9Jvo7WIKb5jDCHHoaB2EQEP5S8xEvIybd5smC1LxP5d g5iU8KzzqoBI1a1PHINSb3Usz9NGcsjmPN85bn0P98vueYUwmS6QOLrxlOb2F3KvooNx i0jVqJyh1yiqVRgzHguiUXlbY/ikM8Au782oA53LGsolgu1QUQQg+mRSUKwaLiIjYsMq V+nhUlgspaj4TGKM+nPGTMI61n2iCbZdkQ+M8CPBtMtzTt3c+3pgUHOvyfK9uvCNDXE8 97dZ9ETQHD5r2+73zvr4HDhLes0WcYoQQU6ipB2OqunXKwRBcCkfZ5gu4P/3imiLPHLl iXMg== X-Gm-Message-State: AHYfb5ikhTI/Sh7JfjNTG2pVrV2P2nUiVjFhYRMpgczSvEqwdW4L9w8G c733+jS9upoCbpPAk+U= X-Received: by 10.80.179.98 with SMTP id r31mr2308281edd.1.1502897725833; Wed, 16 Aug 2017 08:35:25 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:4076:600:895a:bb88:13f:9772]) by smtp.gmail.com with ESMTPSA id y19sm690635edi.6.2017.08.16.08.35.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 16 Aug 2017 08:35:25 -0700 (PDT) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Linus Torvalds , Christopher Li , Luc Van Oostenryck Subject: [PATCH 10/29] add helper imple_access() to test if an access is "simple" Date: Wed, 16 Aug 2017 17:34:36 +0200 Message-Id: <20170816153455.97693-11-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.14.0 In-Reply-To: <20170816153455.97693-1-luc.vanoostenryck@gmail.com> References: <20170816153455.97693-1-luc.vanoostenryck@gmail.com> Sender: linux-sparse-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This helper simply check if an access is to a simple variable as defined by is_simple_var(). Signed-off-by: Luc Van Oostenryck --- linearize.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/linearize.c b/linearize.c index 3a1bc74ed..190c47241 100644 --- a/linearize.c +++ b/linearize.c @@ -912,6 +912,19 @@ static int linearize_address_gen(struct entrypoint *ep, return 0; } +static inline struct symbol *simple_access(struct access_data *ad) +{ + pseudo_t addr = ad->address; + struct symbol *sym; + + if (addr->type != PSEUDO_SYM) + return NULL; + sym = addr->sym; + if (!is_simple_var(sym)) + return NULL; + return sym; +} + static pseudo_t add_load(struct entrypoint *ep, struct access_data *ad) { struct instruction *insn;