WIP: Compat with clang-built kernel - #458
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Check if kernel was built with clang and then pass LLVM=1. Otherwise kbuild will try to use several flags that are not compatible. Signed-off-by: Lucas De Marchi <demarchi@kernel.org>
When trying to run the testsuite in CachyOS that has a kernel built with
clang, the following errors show up after linking the modules:
FAILED: btf permute: Invalid argument
FAILED to sort BTF: Invalid argument
This may happen when kernel is built with
CONFIG_DEBUG_INFO_BTF_MODULES=y and there's a tool mismatch (e.g. the
pahole version), a bug in pahole itself or the build system.
Workaround that by simply disabling btf generation from kernel's
scripts/gen-btf.sh: BTF sections are not needed at all for our
testsuite.
Signed-off-by: Lucas De Marchi <demarchi@kernel.org>
Signed-off-by: Lucas De Marchi <demarchi@kernel.org>
This should allow us testing with a kernel built with clang. Signed-off-by: Lucas De Marchi <demarchi@kernel.org>
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If kernel was built with clang, building our test modules with gcc may not really work. Try to match the compiler and add CachyOS to CI since it has a clang-built kernel.