| # kbuild trick to avoid linker error. Can be omitted if a module is built. |
| obj- := dummy.o |
| |
| # List of programs to build |
| hostprogs-y := test_verifier test_maps |
| hostprogs-y += sock_example |
| hostprogs-y += sockex1 |
| hostprogs-y += sockex2 |
| |
| test_verifier-objs := test_verifier.o libbpf.o |
| test_maps-objs := test_maps.o libbpf.o |
| sock_example-objs := sock_example.o libbpf.o |
| sockex1-objs := bpf_load.o libbpf.o sockex1_user.o |
| sockex2-objs := bpf_load.o libbpf.o sockex2_user.o |
| |
| # Tell kbuild to always build the programs |
| always := $(hostprogs-y) |
| always += sockex1_kern.o |
| always += sockex2_kern.o |
| |
| HOSTCFLAGS += -I$(objtree)/usr/include |
| |
| HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable |
| HOSTLOADLIBES_sockex1 += -lelf |
| HOSTLOADLIBES_sockex2 += -lelf |
| |
| # point this to your LLVM backend with bpf support |
| LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc |
| |
| %.o: %.c |
| clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \ |
| -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \ |
| -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@ |
