From patchwork Thu Jun 13 11:13:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 10991587 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 62C8114C0 for ; Thu, 13 Jun 2019 11:17:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4BE8D28A94 for ; Thu, 13 Jun 2019 11:17:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3DF3A28ABE; Thu, 13 Jun 2019 11:17:29 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C18B128A94 for ; Thu, 13 Jun 2019 11:17:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=DjVzE79HiY9kIrOkxxIVFadPcEnHfEVAHV0lCCClTh4=; b=Kn4bEv4/9FxCfjYMmwDOrMNVfM +C9b8p4lwf9WHQ7quOVGr+oahUsuTbBr3TpdUudBOxqSW0txS6aUSjxw9nUhikPCJYskf4unmCowS ayhQa9cfYyZ6/SZjGbCmLOAz39lGx2LGT5r4AbX278vqlqN6HG73DSdcH/Bz8m8YQMtl94iT5nonB UytPQBAibAHKVYim4yGGCFUW1qMG/3TNQ6Jatn6axzCQF/hreuGVVvnJ8rPrMEGB75dJEMEu7HCyu V7A9q7w++cbBJQylmcoPS4uyMhzp4BhgTPcGhoCVCshpKWIWyCFdy5ubJpvq7Jv8cXezeuqy4CEVq 2mS0JuYg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hbNjN-0003V1-Nd; Thu, 13 Jun 2019 11:17:21 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hbNgk-0007fy-3v for linux-arm-kernel@lists.infradead.org; Thu, 13 Jun 2019 11:14:39 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B28ED3EF; Thu, 13 Jun 2019 04:14:37 -0700 (PDT) Received: from e120937-lin.cambridge.arm.com (e120937-lin.cambridge.arm.com [10.1.197.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 43A9A3F694; Thu, 13 Jun 2019 04:16:20 -0700 (PDT) From: Cristian Marussi To: linux-kselftest@vger.kernel.org, linux-arm-kernel@lists.infradead.org, shuah@kernel.org Subject: [PATCH 09/13] kselftest: arm64: fake_sigreturn_misaligned Date: Thu, 13 Jun 2019 12:13:31 +0100 Message-Id: <20190613111335.7645-10-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190613111335.7645-1-cristian.marussi@arm.com> References: <20190613111335.7645-1-cristian.marussi@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190613_041438_220849_5F6F818D X-CRM114-Status: GOOD ( 10.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: andreyknvl@google.com, dave.martin@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Added a simple fake_sigreturn testcase which builds a good ucontext_t and tries to place it onto the stack in a misaligned way. Expects a SIGSEGV on test PASS. Signed-off-by: Cristian Marussi --- .../arm64/signal/testcases/.gitignore | 1 + .../testcases/fake_sigreturn_misaligned.c | 30 +++++++++++++++++++ 2 files changed, 31 insertions(+) create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned.c diff --git a/tools/testing/selftests/arm64/signal/testcases/.gitignore b/tools/testing/selftests/arm64/signal/testcases/.gitignore index c2972c3f33ca..3e6b26be6727 100644 --- a/tools/testing/selftests/arm64/signal/testcases/.gitignore +++ b/tools/testing/selftests/arm64/signal/testcases/.gitignore @@ -6,3 +6,4 @@ mangle_pstate_invalid_mode_el1 mangle_pstate_invalid_mode_el2 mangle_pstate_invalid_mode_el3 mangle_pstate_ssbs_regs +fake_sigreturn_misaligned diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned.c new file mode 100644 index 000000000000..d551858dd9dd --- /dev/null +++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned.c @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2019 ARM Limited */ + +#include + +#include "test_signals_utils.h" +#include "testcases.h" + +struct a_sigframe sf; + +static int fake_sigreturn_misaligned_run(struct tdescr *td, + siginfo_t *si, ucontext_t *uc) +{ + /* just to fill the ucontext_t with something real */ + if (!get_current_context(td, &sf.uc)) + return 1; + + /* Forcing sigframe on misaligned (=!16) SP */ + fake_sigreturn(&sf, sizeof(sf), 8); + + return 1; +} + +struct tdescr tde = { + .name = "FAKE_SIGRETURN_MISALIGNED_SP", + .descr = "Triggers a fake sigreturn with a misaligned sigframe on SP", + .sig_ok = SIGSEGV, + .timeout = 3, + .run = fake_sigreturn_misaligned_run, +};