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dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=oracle.com; Received: from BLAPR10MB5267.namprd10.prod.outlook.com (2603:10b6:208:30e::22) by MN2PR10MB3614.namprd10.prod.outlook.com (2603:10b6:208:111::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4331.23; Mon, 19 Jul 2021 21:41:35 +0000 Received: from BLAPR10MB5267.namprd10.prod.outlook.com ([fe80::39e8:94ec:fc2d:5a56]) by BLAPR10MB5267.namprd10.prod.outlook.com ([fe80::39e8:94ec:fc2d:5a56%9]) with mapi id 15.20.4331.033; Mon, 19 Jul 2021 21:41:35 +0000 From: Alan Maguire To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org Cc: kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, morbo@google.com, shuah@kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Alan Maguire Subject: [PATCH bpf-next 0/3] libbpf: btf typed data dumping fixes (__int128 usage, error propagation) Date: Mon, 19 Jul 2021 22:41:26 +0100 Message-Id: <1626730889-5658-1-git-send-email-alan.maguire@oracle.com> X-Mailer: git-send-email 1.8.3.1 Content-Type: text/plain X-ClientProxiedBy: DU2PR04CA0278.eurprd04.prod.outlook.com (2603:10a6:10:28c::13) To BLAPR10MB5267.namprd10.prod.outlook.com (2603:10b6:208:30e::22) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (95.45.14.174) by DU2PR04CA0278.eurprd04.prod.outlook.com (2603:10a6:10:28c::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4331.21 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?lBV7+hj4sV/OBgLsFkhMKqNY0ECKAOTGyAryDedfWjlyxxYv+9gzN3dIX+Hi?= =?us-ascii?Q?aeuu8LTQqOo0igXJElgJvRJp367Nlf34r9FLeGkgOX/+q2GmR5lLlybWZfUX?= =?us-ascii?Q?vHO7d23GLrBPX728y+mlHcvolf8kmxioS5Tl4jWxnEcsYhv/a48ZmAc1idiZ?= =?us-ascii?Q?rFvKxRkpLykEzkE+uuBSowoTG+5xXjH+CDDxu3AXWNJI2ajv1uenUR9f5sYX?= =?us-ascii?Q?bnegDuCbsd/M07G0JoHclDv5PYV94UDVNhk2d4BLupFsxQHHR7m7ZD/W9zXv?= =?us-ascii?Q?NuarGZpO84L/CGoC5x0XsoR9u0X/8gAwRoDYYEdnPX5IoU1hX9um8Q40NVDk?= =?us-ascii?Q?IEceIAOS4kgvVHA7e57adTQ+pVQGypw6U6KWO3L4R00WFBPaJ9O1QS4hyEc0?= =?us-ascii?Q?ErFKrYc4Vwt4f22/wm+ISyqGyXyMz2eShg2s7lIV4nWVS3jZQHsYmQDGVKvF?= =?us-ascii?Q?dX8tlz31cpeKwlqGbcqbU8E71P3qhk1pvIuhnhyusq+4RzK6PQj1ej+SUsyy?= =?us-ascii?Q?mbyFWSEtLDhtIkWZY7M2Tl5H7BJ0xPFnYuA7dMfd7SzZYebjnmOi8OgYRKxX?= =?us-ascii?Q?ThSp1koPDP9uYLFs6Swo55ziR03TZGH/DJLSf90wIXTjay16lz6GpqcZFq0a?= =?us-ascii?Q?1L9vc8PR77HIuiDxscH1rGDz1bHnirr77HKZvIS18uVsQxGIuscAH1KjLKCN?= =?us-ascii?Q?bctl75/WV3X+uTzlMasCO4bTZFPOLmWrFPLUIksP8z9SfFc2Qn7cMoNkRk1r?= =?us-ascii?Q?3TBoOFRsNl03Ap/+njuacEvSf3iYpzSbtdGHfy6qZncXZ0epnUR9bdZIT5AG?= =?us-ascii?Q?kAnSxo21Va1Mfh1RZ4J5AZVRphcyeiPWwVensMM2nXwsCLYbX9+s/kw02Qho?= =?us-ascii?Q?MYRnOFsrqy2msJnJY6BOFuSk2hUoyURdAW6uUyR07W+0mE+hsSkKIg/4xCk4?= =?us-ascii?Q?Wa/QYeieWAOwbkMtuexSgfXZHJ1SgTATUgSFF12GM3Ig5degc/VTl531Vd1R?= =?us-ascii?Q?B0WnZvfcOFu3axJ+KweBHWLBZYf5BQe6TTgoTLEgSkAHy1d6VlVIKIbA7SVj?= =?us-ascii?Q?4XhuOKa1jir3kuNW1c/V/at68sWEoRhzw367I6WZd5irD6aLOTv6WvS6dZpX?= =?us-ascii?Q?rrkc8Ani3+LAv5LlnYQoZ28DnZtXIhcUPJiJclOKcGC7oAHN4X8NHExw6ap3?= =?us-ascii?Q?7Pck8UX8m9rS/fuF6Lwy1b5q8rVz8iJEQphVYbnYaAk9WTnC9zYj6wOYObeO?= =?us-ascii?Q?2puSU0DzQNOu+EjrdAXR6gOru8vNe7pc/4g+HKAhAXiyoyvfKCipHiU3JiU8?= =?us-ascii?Q?q95e7WIIXm/ci+zVYWNAlLPD?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 180a276e-eb28-4bfb-143a-08d94afdfb1d X-MS-Exchange-CrossTenant-AuthSource: BLAPR10MB5267.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Jul 2021 21:41:35.1446 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ztC0ADBECf+bvQl/uzIW5WrNMJQWaypEjnLftlmSj5clLDMp96ZUok+vr/gqRkju3ac8S6m4a4drwtsNHOpIuw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR10MB3614 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10050 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 mlxscore=0 malwarescore=0 adultscore=0 phishscore=0 suspectscore=0 mlxlogscore=999 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107190124 X-Proofpoint-GUID: bfNNAkuFhYX2czUsCMyID7MSd0gvgFan X-Proofpoint-ORIG-GUID: bfNNAkuFhYX2czUsCMyID7MSd0gvgFan Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series aims to resolve further issues with the BTF typed data dumping interfaces in libbpf. Compilation failures with use of __int128 on 32-bit platforms were reported [1]. As a result, the use of __int128 in libbpf typed data dumping is replaced with __u64 usage for bitfield manipulations. In the case of 128-bit integer values, they are simply split into two 64-bit hex values for display (patch 1). Tests are added for __int128 display in patch 2, using conditional compilation to avoid problems with a lack of __int128 support. Patch 3 resolves an issue Andrii noted about error propagation when handling enum data display. More followup work is required to ensure multi-dimensional char array display works correctly. [1] https://lore.kernel.org/bpf/1626362126-27775-1-git-send-email-alan.maguire@oracle.com/T/#mc2cb023acfd6c3cd0b661e385787b76bb757430d Alan Maguire (3): libbpf: avoid use of __int128 in typed dump display selftests/bpf: add __int128-specific tests for typed data dump libbpf: propagate errors when retrieving enum value for typed data display tools/lib/bpf/btf_dump.c | 67 +++++++++++++---------- tools/testing/selftests/bpf/prog_tests/btf_dump.c | 17 ++++++ 2 files changed, 55 insertions(+), 29 deletions(-) -- 1.8.3.1