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authorAndrei Matei <andreimatei1@gmail.com>2020-11-24 22:52:55 -0500
committerDaniel Borkmann <daniel@iogearbox.net>2020-11-26 00:25:55 +0100
commitfb3558127cb62ba2dea9e3d0efa1bb1d7e5eee2a (patch)
tree374c267ee03238d92efd31ff1cd74537e7492bc8 /samples/bpf
parent34b82d3ac1058653b3de7be4697b55f67533b1f1 (diff)
bpf: Fix selftest compilation on clang 11
Before this patch, profiler.inc.h wouldn't compile with clang-11 (before the __builtin_preserve_enum_value LLVM builtin was introduced in https://reviews.llvm.org/D83242). Another test that uses this builtin (test_core_enumval) is conditionally skipped if the compiler is too old. In that spirit, this patch inhibits part of populate_cgroup_info(), which needs this CO-RE builtin. The selftests build again on clang-11. The affected test (the profiler test) doesn't pass on clang-11 because it's missing https://reviews.llvm.org/D85570, but at least the test suite as a whole compiles. The test's expected failure is already called out in the README. Signed-off-by: Andrei Matei <andreimatei1@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Florian Lehner <dev@der-flo.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20201125035255.17970-1-andreimatei1@gmail.com
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