diff options
Diffstat (limited to 'samples/bpf/Makefile')
| -rw-r--r-- | samples/bpf/Makefile | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 253e5a2856be..4074a66a70ca 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -206,6 +206,15 @@ HOSTCC = $(CROSS_COMPILE)gcc CLANG_ARCH_ARGS = -target $(ARCH) endif +HDR_PROBE := $(shell echo "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \ + $(HOSTCC) $(KBUILD_HOSTCFLAGS) -x c - -o /dev/null 2>/dev/null && \ + echo okay) + +ifeq ($(HDR_PROBE),) +$(warning WARNING: Detected possible issues with include path.) +$(warning WARNING: Please install kernel headers locally (make headers_install).) +endif + BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris) BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm') |