On Mon, Jan 30, 2023 at 10:36 AM Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:
Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...).
Signed-off-by: Mathieu Desnoyers mathieu.desnoyers@efficios.com Acked-by: Shuah Khan skhan@linuxfoundation.org Cc: bpf@vger.kernel.org Cc: Shuah Khan shuah@kernel.org Cc: linux-kselftest@vger.kernel.org Cc: Ingo Molnar mingo@redhat.com Cc: Alexei Starovoitov ast@kernel.org Cc: Daniel Borkmann daniel@iogearbox.net Cc: Andrii Nakryiko andrii@kernel.org Cc: Martin KaFai Lau martin.lau@linux.dev Cc: Song Liu song@kernel.org Cc: Yonghong Song yhs@fb.com Cc: John Fastabend john.fastabend@gmail.com Cc: KP Singh kpsingh@kernel.org Cc: Stanislav Fomichev sdf@google.com Cc: Hao Luo haoluo@google.com Cc: Jiri Olsa jolsa@kernel.org Cc: Mykola Lysenko mykolal@fb.com Cc: stable@vger.kernel.org [5.18+]
tools/testing/selftests/bpf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index c22c43bbee19..6998c816afef 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -327,7 +327,7 @@ endif CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \
-I$(abspath $(OUTPUT)/../usr/include)
$(KHDR_INCLUDES)
It breaks the build: https://github.com/kernel-patches/bpf/actions/runs/4047075637/jobs/696065524...
make[1]: *** No rule to make target '/linux/bpf.h', needed by '/tmp/work/bpf/bpf/tools/testing/selftests/bpf/bpf-helpers.rst'. Stop.