From patchwork Tue May 29 10:36:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 10434907 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 8AF8E602CC for ; Tue, 29 May 2018 10:37:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 792352867C for ; Tue, 29 May 2018 10:37:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6DBC2286C0; Tue, 29 May 2018 10:37:06 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI 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 E86132867C for ; 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Tue, 29 May 2018 10:36:58 +0000 Received: from mout.kundenserver.de ([212.227.126.134]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fNbzp-000146-Np for linux-arm-kernel@lists.infradead.org; Tue, 29 May 2018 10:36:55 +0000 Received: from wuerfel.lan ([95.208.111.237]) by mrelayeu.kundenserver.de (mreue006 [212.227.15.129]) with ESMTPA (Nemesis) id 0M4P8q-1gFig62qjs-00yduk; Tue, 29 May 2018 12:36:38 +0200 From: Arnd Bergmann To: Russell King Subject: [PATCH] ARM: disable KCOV for trusted foundations code Date: Tue, 29 May 2018 12:36:26 +0200 Message-Id: <20180529103636.1535457-1-arnd@arndb.de> X-Mailer: git-send-email 2.9.0 X-Provags-ID: V03:K1:iEnb1OoICK5/hTgLy6V+oDRrdtczKmm2HEW89arqfBpUflfiY4H pAz9pN+2L8HGn6doL9H3ouJtYAqwsne4X7ZiWyL0YGOsQYi13uG9d2pCdXMb+AhcyOGtrWl LG+crrWeuR6ixKFbmlEviy92TGC7GtKAtaLLlVdputcv8Nh/xRDpJTo1toqnxcbMZe7hdRf Du3FBTiBE8TdE7VKNxoCg== X-UI-Out-Filterresults: notjunk:1; V01:K0:uQ5VGwqfdMM=:+NV7vtgKSYv1ccVEpnpWBk XRZrH8hsQBDcC18mUTxwa/yzjZDDlgrMN/fTH+YDPTQfXkhJ+CpEELkw8i70vLars1h1pjuYW dr5UaSp7Nq2RiVjSEIIGuJn+zaSmTf6zjQCa6eu8sjThVSlG1vLs6HEumsc0TE5SfTcUi1x5m 1YTAgn99zRPywkPgaeRFLvYGJlv/XcxfeqYiaCkm80NVwa2iz1zQQQVDwxvNhSia8+SFX2oaG tVCA/SMsQjoJ/6JshTa55WS8x8BTgRslvfKxkyx0FhBiHqF5iYdSCL1XNMwprvbEZujZg5PF0 otqttKkGeoGL3624jPGbZIBk0bv2V50MkujFe8WrojXEoTf11J2lC5Fpx2JQWjJD36ygiYNQ+ mIG1gjmlOBytAKWMcCtvj1kjYsBEpN99yWCzvNXGwjAjhNwFzoxAhA6aBTzkl6I4g3VbnDPYa 7EgqnMr45/Mxis67T6Rz6OYUT56H8fj/lESIGLaonTaGlwmGRPXka/PbglWTr0qzCIK1L55Ih nbMLdXslHnLFshLLj1sQQMtEWJmw3E4sOyYkjZVSw8YJ6+UEs/E2Gq7eeP9Xw47YP7nCoV3yL lgcj0hz12XgG4vKc0Y8+Yvgedf6j/hnNfUZc6xwJV5Y2MpNFFmw3AXmjbpywRXSDOUW1MTqUl RGrk3RQrN9jEuH9ivXvcKTRTJaxDxLKBEQEZo9zfuxQsMAoGSMlbmEOHD/r9hAUqhZgc= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180529_033654_094357_0BA89BD2 X-CRM114-Status: GOOD ( 11.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Arnd Bergmann , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Andrew Morton , Dmitry Vyukov 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 The ARM trusted foundations code is currently broken in linux-next when CONFIG_KCOV_INSTRUMENT_ALL is set: /tmp/ccHdQsCI.s: Assembler messages: /tmp/ccHdQsCI.s:37: Error: .err encountered /tmp/ccHdQsCI.s:38: Error: .err encountered /tmp/ccHdQsCI.s:39: Error: .err encountered scripts/Makefile.build:311: recipe for target 'arch/arm/firmware/trusted_foundations.o' failed I could not find a function attribute that lets me disable -fsanitize-coverage=trace-pc for just one function, so this turns it off for the entire file instead. Fixes: mmotm ("arm: port KCOV to arm") Cc: Dmitry Vyukov Cc: Mark Rutland Cc: Andrew Morton Signed-off-by: Arnd Bergmann --- arch/arm/firmware/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/firmware/Makefile b/arch/arm/firmware/Makefile index a71f16536b6c..6e41336b0bc4 100644 --- a/arch/arm/firmware/Makefile +++ b/arch/arm/firmware/Makefile @@ -1 +1,4 @@ obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o + +# tf_generic_smc() fails to build with -fsanitize-coverage=trace-pc +KCOV_INSTRUMENT := n