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(parent: 7282ddb) | patch
selftests/bpf: Add tests for restricted helpers
authorDmitrii Banshchikov <me@ubique.spb.ru>
Sat, 13 Nov 2021 14:22:27 +0000 (18:22 +0400)
committerAlexei Starovoitov <ast@kernel.org>
Tue, 16 Nov 2021 04:37:11 +0000 (20:37 -0800)
commitc937fba9060b360192e6c684c681006d4a740b6b
tree6d029ea816351ee368667c1244935862b898aeb1tree | snapshot
parent7282ddbb2457dec15d4e7018da1a5c95e0b96f21commit | diff
selftests/bpf: Add tests for restricted helpers

This patch adds tests that bpf_ktime_get_coarse_ns(), bpf_timer_* and
bpf_spin_lock()/bpf_spin_unlock() helpers are forbidden in tracing progs
as their use there may result in various locking issues.

Signed-off-by: Dmitrii Banshchikov <me@ubique.spb.ru>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211113142227.566439-3-me@ubique.spb.ru
tools/testing/selftests/bpf/prog_tests/helper_restricted.c [new file with mode: 0644] blob
tools/testing/selftests/bpf/progs/test_helper_restricted.c [new file with mode: 0644] blob
tools/testing/selftests/bpf/test_verifier.c diff | blob | history
tools/testing/selftests/bpf/verifier/helper_restricted.c [new file with mode: 0644] blob
Linux Kernel Source Tree.