Re: [PATCH bpf-next 0/4] selftests/bpf: Fix a couple of test failures with LTO kernel

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On 3/2/24 8:20 AM, Yonghong Song wrote:
With a LTO kernel built with clang, I encountered two test failures,
ksyms and kprobe_multi_bench_attach/kernel. Both test failures are
due to static variable/function renaming due to cross-file inlining.
The solution is to either skip the test or filter out those renamed
functions. A helper function check_lto_kernel() is introduced to
identify whether the underlying kernel is built with LTO or not.
Please see each individual patches for details.

Yonghong Song (4):
   selftests/bpf: Replace CHECK with ASSERT macros for ksyms test
   selftests/bpf: Add check_lto_kernel() helper
   selftests/bpf: Fix possible ksyms test failure with LTO kernel
   selftests/bpf: Fix possible kprobe_multi_bench_attach test failure
     with LTO kernel

  .../bpf/prog_tests/kprobe_multi_test.c        |  7 +++
  .../testing/selftests/bpf/prog_tests/ksyms.c  | 42 +++++++++--------
  tools/testing/selftests/bpf/testing_helpers.c | 47 +++++++++++++++++++
  tools/testing/selftests/bpf/testing_helpers.h |  1 +
  4 files changed, 78 insertions(+), 19 deletions(-)

Please ignore this one. It is my git send script issue with Message-Id vs. Message-ID.
Will post actual series soon.





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