From patchwork Thu Sep 21 14:35:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jo Van Bulck X-Patchwork-Id: 13394745 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0669FE7D0AB for ; Thu, 21 Sep 2023 21:50:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232840AbjIUVuy (ORCPT ); Thu, 21 Sep 2023 17:50:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232834AbjIUVu1 (ORCPT ); Thu, 21 Sep 2023 17:50:27 -0400 Received: from icts-p-cavspool-1.kulnet.kuleuven.be (icts-p-cavspool-1.kulnet.kuleuven.be [134.58.240.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EFE68CC94; Thu, 21 Sep 2023 10:42:40 -0700 (PDT) Received: from icts-p-cavuit-2.kulnet.kuleuven.be (icts-p-cavuit-2.kulnet.kuleuven.be [IPv6:2a02:2c40:0:c0::25:131]) by icts-p-cavspool-1.kulnet.kuleuven.be (Postfix) with ESMTP id C5AE629C3; Thu, 21 Sep 2023 16:36:59 +0200 (CEST) X-KULeuven-Envelope-From: jo.vanbulck@cs.kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 811F6201B4.AF3C2 X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-ceifnet-smtps-0.kuleuven.be (icts-p-ceifnet-smtps.service.icts.svcd [IPv6:2a02:2c40:0:51:140:242:ac11:1d]) by icts-p-cavuit-2.kulnet.kuleuven.be (Postfix) with ESMTP id 811F6201B4; Thu, 21 Sep 2023 16:36:37 +0200 (CEST) BCmilterd-Mark-Subject: no BCmilterd-Errors: BCmilterd-Report: SA-HVU#DKIM_VALID#0.00,SA-HVU#DKIM_SIGNED#0.00,SA-HVU#DKIM_VALID_AU#0.00 X-CAV-Cluster: smtps DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cs.kuleuven.be; s=cav; t=1695306997; bh=SwLD8/U7UN06+wHZP5wX9JtDvnWuIFp1Ea4q7cRJOXw=; h=From:To:Cc:Subject:Date; b=AGWlTrp+yggW3WYIVPHio+NHwV34PcxQNilk/051Mi/wcA4apl46GPuswjhfTJjMY us38ZuuB7QYP/fPzD97KxkKl7pCKPLpP2KuYfX49N4lnqGg/GcIDD3FZRCPMTkk+ye mqQmSqsj0MS+G6JoF8HHKGXPrkUxLs5cXrLHU6xU= Received: from localhost.localdomain (ptr-82s0fs8p4onqm1q5sl7.18120a2.ip6.access.telenet.be [IPv6:2a02:1811:d31:8b00:c962:1db3:c9ed:fdfb]) (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 icts-p-ceifnet-smtps-0.kuleuven.be (Postfix) with ESMTPSA id 4609ED4F30837; Thu, 21 Sep 2023 16:36:37 +0200 (CEST) X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Jo Van Bulck To: jarkko@kernel.org, kai.huang@intel.com, linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org Cc: dave.hansen@linux.intel.com, Jo Van Bulck Subject: [PATCH v6 00/13] selftests/sgx: Fix compilation errors Date: Thu, 21 Sep 2023 16:35:51 +0200 Message-Id: <20230921143604.6561-1-jo.vanbulck@cs.kuleuven.be> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org Hi, This patch series ensures that all SGX selftests succeed when compiling with optimizations (as tested with -O{0,1,2,3,s} for both gcc 11.3.0 and clang 14.0.0). The aim of the patches is to avoid reliance on undefined, compiler-specific behavior that can make the test results fragile. As far as I see, all commits in this series have now been acked/reviewed. Please let me know if any concerns remain and I'd happily address them. Reference output below: .. Testing gcc -O0 [OK] .. Testing gcc -O1 [OK] .. Testing gcc -O2 [OK] .. Testing gcc -O3 [OK] .. Testing gcc -Os [OK] .. Testing gcc -Ofast [OK] .. Testing gcc -Og [OK] .. Testing clang -O0 [OK] .. Testing clang -O1 [OK] .. Testing clang -O2 [OK] .. Testing clang -O3 [OK] .. Testing clang -Os [OK] .. Testing clang -Ofast [OK] .. Testing clang -Og [OK] Changelog --------- v6 - Collect final ack/reviewed-by tags (Jarkko, Kai) v5 - Reorder patches (Jarkko, Kai) - Include fixes tag for inline asm memory clobber patch (Kai) - Include linker error in static-pie commit message (Kai) - Include generated assembly in relocations commit (Kai) v4 - Remove redundant -nostartfiles compiler flag (Jarkko) - Split dynamic symbol table removal in separate commit (Kai) - Split redundant push/pop elimination in separate commit (Kai) - Remove (incomplete) register cleansing on enclave exit - Fix possibly uninitialized pointer dereferences in load.c v3 - Refactor encl_op_array declaration and indexing (Jarkko) - Annotate encl_buffer with "used" attribute (Kai) - Split encl_buffer size and placement commits (Kai) v2 - Add additional check for NULL pointer (Kai) - Refine to produce proper static-pie executable - Fix linker script assertions - Specify memory clobber for inline asm instead of volatile (Kai) - Clarify why encl_buffer non-static (Jarkko, Kai) - Clarify -ffreestanding (Jarkko) Best, Jo Jo Van Bulck (13): selftests/sgx: Fix uninitialized pointer dereference in error path selftests/sgx: Fix uninitialized pointer dereferences in encl_get_entry selftests/sgx: Include memory clobber for inline asm in test enclave selftests/sgx: Separate linker options selftests/sgx: Specify freestanding environment for enclave compilation selftests/sgx: Remove redundant enclave base address save/restore selftests/sgx: Produce static-pie executable for test enclave selftests/sgx: Handle relocations in test enclave selftests/sgx: Fix linker script asserts selftests/sgx: Ensure test enclave buffer is entirely preserved selftests/sgx: Ensure expected location of test enclave buffer selftests/sgx: Discard unsupported ELF sections selftests/sgx: Remove incomplete ABI sanitization code in test enclave tools/testing/selftests/sgx/Makefile | 12 ++-- tools/testing/selftests/sgx/defines.h | 2 + tools/testing/selftests/sgx/load.c | 9 ++- tools/testing/selftests/sgx/sigstruct.c | 5 +- tools/testing/selftests/sgx/test_encl.c | 67 +++++++++++++------ tools/testing/selftests/sgx/test_encl.lds | 10 +-- .../selftests/sgx/test_encl_bootstrap.S | 28 +++----- 7 files changed, 77 insertions(+), 56 deletions(-)