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Tue, 27 Apr 2021 21:55:42 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Tue, 27 Apr 2021 21:46:55 -0000 From: Richard Henderson <1926044@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=In Progress; importance=Undecided; assignee=rth@twiddle.net; X-Launchpad-Bug-Tags: arm mte user X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: rth vitalybuka X-Launchpad-Bug-Reporter: Vitaly Buka (vitalybuka) X-Launchpad-Bug-Modifier: Richard Henderson (rth) References: <161931792564.17271.10395230459178895166.malonedeb@chaenomeles.canonical.com> Message-Id: <161956001517.10625.2379653538605536900.malone@soybean.canonical.com> Subject: [Bug 1926044] Re: QEMU-user doesn't report HWCAP2_MTE X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="f9f562f07f129de414c16be22a405ff0964e0018"; Instance="production" X-Launchpad-Hash: ad49ecb31f40a0c7d53e969e9d5ebb93c686ad72 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1926044 <1926044@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" https://patchew.org/QEMU/20210427214108.88503-1-richard.henderson@linaro.or= g/ This has missed 6.0, but should be acceptable to roll into 6.0.1. -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1926044 Title: QEMU-user doesn't report HWCAP2_MTE Status in QEMU: In Progress Bug description: Reproducible on ffa090bc56e73e287a63261e70ac02c0970be61a Host Debian 5.10.24 x86_64 GNU Configured with "configure --disable-system --enable-linux-user --static" This one works and prints "OK" as expected: clang tests/tcg/aarch64/mte-3.c -target aarch64-linux-gnu -fsanitize=3Dm= emtag -march=3Darmv8+memtag qemu-aarch64 --cpu max -L /usr/aarch64-linux-gnu ./a.out && echo OK = This one fails and print "0": cat mytest.c #include #include #ifndef HWCAP2_MTE #define HWCAP2_MTE (1 << 18) #endif int main(int ac, char **av) { printf("%d\n", (int)(getauxval(AT_HWCAP2) & HWCAP2_MTE)); } = clang mytest.c -target aarch64-linux-gnu -fsanitize=3Dmemtag -march=3Dar= mv8+memtag qemu-aarch64 --cpu max -L /usr/aarch64-linux-gnu ./a.out To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1926044/+subscriptions