kernel/linux.git/tools/testing/selftests/bpf/README.rst, branch v6.19.5

selftests/bpf: Add description for running vmtest on RV64

2024-09-05T20:13:40+00:00

Add description in tools/testing/selftests/bpf/README.rst for running vmtest on RV64. Signed-off-by: Pu Lehui Link: https://lore.kernel.org/r/20240905081401.1894789-11-pulehui@huaweicloud.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Support local rootfs image for vmtest

2024-09-05T20:13:40+00:00

Support vmtest to use local rootfs image generated by [0] that is consistent with BPF CI. Now we can specify the local rootfs image through the `-l` parameter like as follows: vmtest.sh -l ./libbpf-vmtest-rootfs-2024.08.22-noble-amd64.tar.zst -- ./test_progs Meanwhile, some descriptions have been flushed. Link: https://github.com/libbpf/ci/blob/main/rootfs/mkrootfs_debian.sh [0] Acked-by: Eduard Zingerman Signed-off-by: Pu Lehui Link: https://lore.kernel.org/r/20240905081401.1894789-6-pulehui@huaweicloud.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Update LLVM Phabricator links

2024-01-23T22:40:22+00:00

reviews.llvm.org was LLVM's Phabricator instances for code review. It has been abandoned in favor of GitHub pull requests. While the majority of links in the kernel sources still work because of the work Fangrui has done turning the dynamic Phabricator instance into a static archive, there are some issues with that work, so preemptively convert all the links in the kernel sources to point to the commit on GitHub. Most of the commits have the corresponding differential review link in the commit message itself so there should not be any loss of fidelity in the relevant information. Additionally, fix a typo in the xdpwall.c print ("LLMV" -> "LLVM") while in the area. Link: https://discourse.llvm.org/t/update-on-github-pull-requests/71540/172 Acked-by: Yonghong Song Signed-off-by: Nathan Chancellor Link: https://lore.kernel.org/r/20240111-bpf-update-llvm-phabricator-links-v2-1-9a7ae976bd64@kernel.org Signed-off-by: Alexei Starovoitov

selftests/bpf: Override PKG_CONFIG for static builds

2023-11-29T06:15:29+00:00

A library may need to depend on additional archive files for static builds so pkg-config should be instructed to list them. Signed-off-by: Akihiko Odaki Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20231125084253.85025-3-akihiko.odaki@daynix.com

bpf/docs: Summarize CI system and deny lists

2022-10-19T18:42:01+00:00

This change adds a brief summary of the BPF continuous integration (CI) to the BPF selftest documentation. The summary focuses not so much on actual workings of the CI, as it is maintained outside of the repository, but aims to document the few bits of it that are sourced from this repository and that developers may want to adjust as part of patch submissions: the BPF kernel configuration and the deny list file(s). Changelog: - v1->v2: - use s390x instead of s390 for consistency Signed-off-by: Daniel Müller Acked-by: David Vernet Link: https://lore.kernel.org/r/20221018164015.1970862-1-deso@posteo.net Signed-off-by: Martin KaFai Lau

bpf/docs: Update README for most recent vmtest.sh

2022-10-18T19:54:05+00:00

Since commit 40b09653b197 ("selftests/bpf: Adjust vmtest.sh to use local kernel configuration") the vmtest.sh script no longer downloads a kernel configuration but uses the local, in-repository one. This change updates the README, which still mentions the old behavior. Signed-off-by: Daniel Müller Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20221017232458.1272762-1-deso@posteo.net

selftests/bpf: Store BPF object files with .bpf.o extension

2022-09-02T13:55:37+00:00

BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko Signed-off-by: Daniel Müller Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net

bpf/docs: Update list of architectures supported.

2022-03-08T06:27:13+00:00

vmtest.sh also supports s390x now. Signed-off-by: KP Singh Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220307133048.1287644-2-kpsingh@kernel.org

bpf/docs: Update vmtest docs for static linking

2022-03-08T06:27:00+00:00

Dynamic linking when compiling on the host can cause issues when the libc version does not match the one in the VM image. Update the docs to explain how to do this. Before: ./vmtest.sh -- ./test_progs -t test_ima ./test_progs: /usr/lib/libc.so.6: version `GLIBC_2.33' not found (required by ./test_progs) After: LDLIBS=-static ./vmtest.sh -- ./test_progs -t test_ima test_ima:OK Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED Reported-by: "Geyslan G. Bem" Signed-off-by: KP Singh Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220307133048.1287644-1-kpsingh@kernel.org

selftests/bpf: specify pahole version requirement for btf_tag test

2022-01-27T20:03:47+00:00

Specify pahole version requirement (1.23) for btf_tag subtests btf_type_tag_user_{mod1, mod2, vmlinux}. Signed-off-by: Yonghong Song Link: https://lore.kernel.org/r/20220127154622.663337-1-yhs@fb.com Signed-off-by: Alexei Starovoitov