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Wed, 24 Jun 2020 10:02:38 +0000 (UTC) Received: from localhost (ovpn-114-150.ams2.redhat.com [10.36.114.150]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4AE3F12CB4; Wed, 24 Jun 2020 10:02:38 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 05/12] check-block: enable iotests with SafeStack Date: Wed, 24 Jun 2020 11:02:03 +0100 Message-Id: <20200624100210.59975-6-stefanha@redhat.com> In-Reply-To: <20200624100210.59975-1-stefanha@redhat.com> References: <20200624100210.59975-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=stefanha@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/24 03:27:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Eduardo Habkost , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , Cleber Rosa , Daniele Buono Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Daniele Buono SafeStack is a stack protection technique implemented in llvm. It is enabled with a -fsanitize flag. iotests are currently disabled when any -fsanitize option is used, because such options tend to produce additional warnings and false positives. While common -fsanitize options are used to verify the code and not added in production, SafeStack's main use is in production environments to protect against stack smashing. Since SafeStack does not print any warning or false positive, enable iotests when SafeStack is the only -fsanitize option used. This is likely going to be a production binary and we want to make sure it works correctly. Signed-off-by: Daniele Buono Message-id: 20200529205122.714-5-dbuono@linux.vnet.ibm.com Signed-off-by: Stefan Hajnoczi --- tests/check-block.sh | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/tests/check-block.sh b/tests/check-block.sh index ad320c21ba..8e29c868e5 100755 --- a/tests/check-block.sh +++ b/tests/check-block.sh @@ -21,7 +21,17 @@ if grep -q "CONFIG_GPROF=y" config-host.mak 2>/dev/null ; then exit 0 fi -if grep -q "CFLAGS.*-fsanitize" config-host.mak 2>/dev/null ; then +# Disable tests with any sanitizer except for SafeStack +CFLAGS=$( grep "CFLAGS.*-fsanitize" config-host.mak 2>/dev/null ) +SANITIZE_FLAGS="" +#Remove all occurrencies of -fsanitize=safe-stack +for i in ${CFLAGS}; do + if [ "${i}" != "-fsanitize=safe-stack" ]; then + SANITIZE_FLAGS="${SANITIZE_FLAGS} ${i}" + fi +done +if echo ${SANITIZE_FLAGS} | grep -q "\-fsanitize" 2>/dev/null; then + # Have a sanitize flag that is not allowed, stop echo "Sanitizers are enabled ==> Not running the qemu-iotests." exit 0 fi