diff options
| author | Andrii Nakryiko <andrii@kernel.org> | 2022-04-25 17:45:06 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-04-26 15:41:46 -0700 |
| commit | b82bb1ffbb9a20032853ef4e0d5b8f37c6ae7c25 (patch) | |
| tree | 4f871fd99d03f0b83e22eec3c6a26279a05cb0d6 /tools/testing/selftests/bpf/prog_tests/linked_funcs.c | |
| parent | 11d5daa89254ba2233d422777d52dbf24666b280 (diff) | |
selftests/bpf: Add CO-RE relos and SEC("?...") to linked_funcs selftests
Enhance linked_funcs selftest with two tricky features that might not
obviously work correctly together. We add CO-RE relocations to entry BPF
programs and mark those programs as non-autoloadable with SEC("?...")
annotation. This makes sure that libbpf itself handles .BTF.ext CO-RE
relocation data matching correctly for SEC("?...") programs, as well as
ensures that BPF static linker handles this correctly (this was the case
before, no changes are necessary, but it wasn't explicitly tested).
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220426004511.2691730-6-andrii@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/linked_funcs.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/linked_funcs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c index e9916f2817ec..cad664546912 100644 --- a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c +++ b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c @@ -14,6 +14,12 @@ void test_linked_funcs(void) if (!ASSERT_OK_PTR(skel, "skel_open")) return; + /* handler1 and handler2 are marked as SEC("?raw_tp/sys_enter") and + * are set to not autoload by default + */ + bpf_program__set_autoload(skel->progs.handler1, true); + bpf_program__set_autoload(skel->progs.handler2, true); + skel->rodata->my_tid = syscall(SYS_gettid); skel->bss->syscall_id = SYS_getpgid; |