Searched hist:e4f7ac90c2b09766e4acf771908987391c836413 (Results 1 – 2 of 2) sorted by relevance
| /linux/tools/testing/selftests/bpf/prog_tests/ |
| H A D | legacy_printk.c | e4f7ac90c2b09766e4acf771908987391c836413 Tue Nov 23 21:01:05 CET 2021 Andrii Nakryiko <andrii@kernel.org> selftests/bpf: Mix legacy (maps) and modern (vars) BPF in one test
Add selftest that combines two BPF programs within single BPF object
file such that one of the programs is using global variables, but can be
skipped at runtime on old kernels that don't support global data.
Another BPF program is written with the goal to be runnable on very old
kernels and only relies on explicitly accessed BPF maps.
Such test, run against old kernels (e.g., libbpf CI will run it against 4.9
kernel that doesn't support global data), allows to test the approach
and ensure that libbpf doesn't make unnecessary assumption about
necessary kernel features.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211123200105.387855-2-andrii@kernel.org
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| /linux/tools/testing/selftests/bpf/progs/ |
| H A D | test_legacy_printk.c | e4f7ac90c2b09766e4acf771908987391c836413 Tue Nov 23 21:01:05 CET 2021 Andrii Nakryiko <andrii@kernel.org> selftests/bpf: Mix legacy (maps) and modern (vars) BPF in one test
Add selftest that combines two BPF programs within single BPF object
file such that one of the programs is using global variables, but can be
skipped at runtime on old kernels that don't support global data.
Another BPF program is written with the goal to be runnable on very old
kernels and only relies on explicitly accessed BPF maps.
Such test, run against old kernels (e.g., libbpf CI will run it against 4.9
kernel that doesn't support global data), allows to test the approach
and ensure that libbpf doesn't make unnecessary assumption about
necessary kernel features.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211123200105.387855-2-andrii@kernel.org
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