6d27347869
Bugzilla: https://bugzilla.redhat.com/2221599 commit b539a287baaa8501b3af4f7f99aba3c0b1d822f8 Author: Florent Revest <revest@chromium.org> Date: Fri Feb 17 16:18:32 2023 +0100 selftests/bpf: Fix cross compilation with CLANG_CROSS_FLAGS I cross-compile my BPF selftests with the following command: CLANG_CROSS_FLAGS="--target=aarch64-linux-gnu --sysroot=/sysroot/" \ make LLVM=1 CC=clang CROSS_COMPILE=aarch64-linux-gnu- SRCARCH=arm64 (Note the use of CLANG_CROSS_FLAGS to specify a custom sysroot instead of letting clang use gcc's default sysroot) However, CLANG_CROSS_FLAGS gets propagated to host tools builds (libbpf and bpftool) and because they reference it directly in their Makefiles, they end up cross-compiling host objects which results in linking errors. This patch ensures that CLANG_CROSS_FLAGS is reset if CROSS_COMPILE isn't set (for example when reaching a BPF host tool build). Signed-off-by: Florent Revest <revest@chromium.org> Link: https://lore.kernel.org/r/20230217151832.27784-1-revest@chromium.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Artem Savkov <asavkov@redhat.com> |
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