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Mon, 04 Mar 2024 09:45:09 -0500 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-156-9TdeOOI2OkWutwADUWbgIw-1; Mon, 04 Mar 2024 09:45:01 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 89150891F20; Mon, 4 Mar 2024 14:45:01 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.42.28.54]) by smtp.corp.redhat.com (Postfix) with ESMTP id DEC882166B35; Mon, 4 Mar 2024 14:44:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709563506; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CLvvnawf8Y0JAJgS0FG+ATI5m0ZuxaniOd3uQ0mOM8A=; b=CGaNDI4m18auHMlMhJhN33JNRcn23b8SQpa7TaVQisIi10DtlbMnpcZ3VqJjSXWL9s/uQH E753OlxLCQ3u67Thlgb5GnYqOMFt91XazsRbDfEP78N7BDZiLn9SwJKl3Z2K8xoTdnejRa SRFCWja5COEzD06wTGX2cxDEtDEjBsI= X-MC-Unique: 9TdeOOI2OkWutwADUWbgIw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Wainer dos Santos Moschetta , Thomas Huth , Beraldo Leal , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH 1/2] meson: detect broken clang 17 with -fzero-call-used-regs Date: Mon, 4 Mar 2024 14:44:55 +0000 Message-ID: <20240304144456.3825935-2-berrange@redhat.com> In-Reply-To: <20240304144456.3825935-1-berrange@redhat.com> References: <20240304144456.3825935-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.571, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1709563568244100002 Clang 17 will segv if given -fzero-call-used-regs and optimization is enabled. Since upstream hasn't triaged the bug, distros are increasingly shipping with broken Clang. https://github.com/llvm/llvm-project/issues/75168 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277474 Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Peter Maydell Reviewed-by: Richard Henderson --- meson.build | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/meson.build b/meson.build index 0ef1654e86..762798f2ee 100644 --- a/meson.build +++ b/meson.build @@ -555,17 +555,24 @@ endif # Check further flags that make QEMU more robust against malicious parties =20 hardening_flags =3D [ - # Zero out registers used during a function call - # upon its return. This makes it harder to assemble - # ROP gadgets into something usable - '-fzero-call-used-regs=3Dused-gpr', - # Initialize all stack variables to zero. This makes # it harder to take advantage of uninitialized stack # data to drive exploits '-ftrivial-auto-var-init=3Dzero', ] =20 +# Zero out registers used during a function call +# upon its return. This makes it harder to assemble +# ROP gadgets into something usable +# +# NB: CLang 17 is broken and SEGVs +# https://github.com/llvm/llvm-project/issues/75168 +if cc.compiles('extern struct { void (*cb)(void); } s; void f(void) { s.cb= (); }', + name: '-fzero-call-used-regs=3Dused-gpr', + args: ['-O2', '-fzero-call-used-regs=3Dused-gpr']) + hardening_flags +=3D '-fzero-call-used-regs=3Dused-gpr' +endif + qemu_common_flags +=3D cc.get_supported_arguments(hardening_flags) =20 add_global_arguments(qemu_common_flags, native: false, language: all_langu= ages) --=20 2.43.0 From nobody Tue Nov 26 04:43:01 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1709563567; cv=none; d=zohomail.com; s=zohoarc; b=RnCD+3z1n7UbTqHkQyC7yIf7QCqJ3EFvfj4APu4HR782EM2PKg6g7RRXcTH6fd7q3mgTfdIV12ZHuU3NIsP2DFLkJmt2fjL9Ls8YE1bD73XDeqJgrcyFQOib3ttZZbUA7PsNmRzHv0Zvy1AhwHCmP4AtkIb/gYmL7KTtJPW3vR8= ARC-Message-Signature: i=1; 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Mon, 4 Mar 2024 14:45:03 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.42.28.54]) by smtp.corp.redhat.com (Postfix) with ESMTP id B836B2166B31; Mon, 4 Mar 2024 14:45:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709563506; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kcPhlVBJhiq1RRyVdHkyuuj2MmNUV1l61uCal5LVsjg=; b=BcyimMkP2h2m1/g+nFpAKvK8DvSF1Rrt8W78/kxntlwEUKIiQs10JyI4GKi8DYN2w57C92 MRBSI/J2Ummrq+QqSCSb8HLmwfnsR64XaZ8Dz8H44M5g60B/O7oE8zBrrSgLHKB/iEtCOV K68qYoSze8jia0st46403aklZMUkedM= X-MC-Unique: x6FlQIx3Nxil5k5Ck1XSeA-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Wainer dos Santos Moschetta , Thomas Huth , Beraldo Leal , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH 2/2] gitlab: update FreeBSD Cirrus CI image to 13.3 Date: Mon, 4 Mar 2024 14:44:56 +0000 Message-ID: <20240304144456.3825935-3-berrange@redhat.com> In-Reply-To: <20240304144456.3825935-1-berrange@redhat.com> References: <20240304144456.3825935-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.571, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1709563568238100001 The 13.2 images have been deleted from gcloud Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Peter Maydell Reviewed-by: Richard Henderson --- .gitlab-ci.d/cirrus.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.gitlab-ci.d/cirrus.yml b/.gitlab-ci.d/cirrus.yml index 64f2e25afa..b45f9de62f 100644 --- a/.gitlab-ci.d/cirrus.yml +++ b/.gitlab-ci.d/cirrus.yml @@ -52,7 +52,7 @@ x64-freebsd-13-build: NAME: freebsd-13 CIRRUS_VM_INSTANCE_TYPE: freebsd_instance CIRRUS_VM_IMAGE_SELECTOR: image_family - CIRRUS_VM_IMAGE_NAME: freebsd-13-2 + CIRRUS_VM_IMAGE_NAME: freebsd-13-3 CIRRUS_VM_CPUS: 8 CIRRUS_VM_RAM: 8G UPDATE_COMMAND: pkg update; pkg upgrade -y --=20 2.43.0