bpf: Add -target to clang switch while cross compiling.
Update to llvm excludes assembly instructions. llvm git revision is below commit 65fad7c26569 ("bpf: add inline-asm support") This change will be part of llvm release 6.0 __ASM_SYSREG_H define is not required for native compile. -target switch includes appropriate target specific files while cross compiling Tested on x86 and arm64. Signed-off-by: Abhijit Ayarekar <abhijit.ayarekar@caviumnetworks.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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