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X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: axVRnda1u8nE5eMv2UDbxSADNRrHtMOdxq8A/h3S7C+0QCdEwtqlHpv3L2lWcr/7/hMkZh2BHcSwJywPmXMqgJfFEByuO6tooh/dqRLUvLY= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA6PR10MB8063 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-16_10,2025-01-16_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 phishscore=0 adultscore=0 spamscore=0 mlxlogscore=999 suspectscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2411120000 definitions=main-2501160178 X-Proofpoint-GUID: x2QaKyX1LT56W8OUnAs9jFpZ5_fjsaa1 X-Proofpoint-ORIG-GUID: x2QaKyX1LT56W8OUnAs9jFpZ5_fjsaa1 Thank you for getting this up and running! > Hi everyone. > > GCC BPF support in BPF CI has been landed. > > The BPF CI dashboard is here: > https://github.com/kernel-patches/bpf/actions/workflows/test.yml > > A summary of what happens on CI (relevant to GCC BPF): > * Linux Kernel is built on a target source revision > * Latest snapshots of GCC 15 and binutils are downloaded > * GCC BPF compiler is built and cached > * selftests/bpf test runners are built with BPF_GCC variable set > * BPF_GCC triggers a build of test_progs-bpf_gcc runner > * The runner contains BPF binaries produced by GCC BPF > * In a separate job, test_progs-bpf_gcc is executed within qemu > against the target kernel > > GCC BPF is only tested on x86_64. > > On x86_64 we test the following toolchains for building the kernel and > test runners: gcc-13 (ubuntu 24 default), clang-17, clang-18. > > An example of successful test run (you have to login to github to see > the logs): > https://github.com/kernel-patches/bpf/actions/runs/12816136141/job/35736973856 > > Currently 2513 of 4340 tests pass for GCC BPF, so a bit more than a half. > > Effective BPF selftests denylist for GCC BPF is located here: > https://github.com/kernel-patches/vmtest/blob/master/ci/vmtest/configs/DENYLIST.test_progs-bpf_gcc > > When a patch is submitted to BPF, normally a corresponding PR for > kernel-patches/bpf github repo is automatically created to trigger a > BPF CI run for this change. PRs opened manually will do that too, and > this can be used to test patches before submission. > > Since the CI automatically pulls latest GCC snapshot, a change in GCC > can potentially cause CI failures unrelated to Linux changes being > tested. This is not the only dependency like that, of course. > > In such situations, a change is usually made in CI code to mitigate > the failure in order to unblock the pipeline for patches. If that > happens with GCC, someone (most likely me) will have to reach out to > GCC team. I guess gcc@gcc.gnu.org would be the default point of > contact, but if there are specific people who should be notified > please let me know.