| Message ID | 20210423181348.1801389-19-andrii@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | BPF |
| Headers | show |
| Series | BPF static linker: support externs | expand |
On 4/23/21 11:13 AM, Andrii Nakryiko wrote: > Document which fixes are required to generate correct static linking > selftests. > > Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com>
diff --git a/tools/testing/selftests/bpf/README.rst b/tools/testing/selftests/bpf/README.rst index 65fe318d1e71..3353778c30f8 100644 --- a/tools/testing/selftests/bpf/README.rst +++ b/tools/testing/selftests/bpf/README.rst @@ -193,3 +193,12 @@ Without it, the error from compiling bpf selftests looks like: libbpf: failed to find BTF for extern 'tcp_slow_start' [25] section: -2 __ https://reviews.llvm.org/D93563 + +Clang dependencies for static linking tests +=========================================== + +linked_vars, linked_maps, and linked_funcs tests depend on `Clang fix`__ to +generate valid BTF information for weak variables. Please make sure you use +Clang that contains the fix. + +__ https://reviews.llvm.org/D100362
Document which fixes are required to generate correct static linking selftests. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> --- tools/testing/selftests/bpf/README.rst | 9 +++++++++ 1 file changed, 9 insertions(+)