Viktor Malik aa3d65de4b bpf/selftests: Test fentry attachment to shadowed functions ... Adds a new test that tries to attach a program to fentry of two functions of the same name, one located in vmlinux and the other in bpf_testmod. To avoid conflicts with existing tests, a new function "bpf_fentry_shadow_test" was created both in vmlinux and in bpf_testmod. The previous commit fixed a bug which caused this test to fail. The verifier would always use the vmlinux function's address as the target trampoline address, hence trying to create two trampolines for a single address, which is forbidden. The test (similarly to other fentry/fexit tests) is not working on arm64 at the moment. Signed-off-by: Viktor Malik <vmalik@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/5fe2f364190b6f79b085066ed7c5989c5bc475fa.1678432753.git.vmalik@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2023-03-15 18:38:30 -07:00
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.gitignore
bpf_testmod-events.h
bpf_testmod.c	bpf/selftests: Test fentry attachment to shadowed functions	2023-03-15 18:38:30 -07:00
bpf_testmod.h	selftests/bpf: implement and test custom testmod_seq iterator	2023-03-08 16:19:51 -08:00
Makefile