a22c0c81da
With clang compiler: make -j60 LLVM=1 LLVM_IAS=1 <=== compile kernel make -j60 -C tools/testing/selftests/bpf LLVM=1 LLVM_IAS=1 the test_cpp build failed due to the failure: warning: treating 'c-header' input as 'c++-header' when in C++ mode, this behavior is deprecated [-Wdeprecated] clang-13: error: cannot specify -o when generating multiple output files test_cpp compilation flag looks like: clang++ -g -Og -rdynamic -Wall -I<...> ... \ -Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program \ test_cpp.cpp <...>/test_core_extern.skel.h <...>/libbpf.a <...>/test_stub.o \ -lcap -lelf -lz -lrt -lpthread -o <...>/test_cpp The clang++ compiler complains the header file in the command line and also failed the compilation due to this. Let us remove the header file from the command line which is not intended any way, and this fixed the compilation problem. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210413153424.3028986-1-yhs@fb.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.