1 # kbuild trick to avoid linker error. Can be omitted if a module is built.
4 # List of programs to build
5 hostprogs-y := test_verifier test_maps
6 hostprogs-y += sock_example
10 hostprogs-y += tracex1
11 hostprogs-y += tracex2
12 hostprogs-y += tracex3
13 hostprogs-y += tracex4
14 hostprogs-y += tracex5
16 test_verifier-objs := test_verifier.o libbpf.o
17 test_maps-objs := test_maps.o libbpf.o
18 sock_example-objs := sock_example.o libbpf.o
19 sockex1-objs := bpf_load.o libbpf.o sockex1_user.o
20 sockex2-objs := bpf_load.o libbpf.o sockex2_user.o
21 sockex3-objs := bpf_load.o libbpf.o sockex3_user.o
22 tracex1-objs := bpf_load.o libbpf.o tracex1_user.o
23 tracex2-objs := bpf_load.o libbpf.o tracex2_user.o
24 tracex3-objs := bpf_load.o libbpf.o tracex3_user.o
25 tracex4-objs := bpf_load.o libbpf.o tracex4_user.o
26 tracex5-objs := bpf_load.o libbpf.o tracex5_user.o
28 # Tell kbuild to always build the programs
29 always := $(hostprogs-y)
30 always += sockex1_kern.o
31 always += sockex2_kern.o
32 always += sockex3_kern.o
33 always += tracex1_kern.o
34 always += tracex2_kern.o
35 always += tracex3_kern.o
36 always += tracex4_kern.o
37 always += tracex5_kern.o
38 always += tcbpf1_kern.o
40 HOSTCFLAGS += -I$(objtree)/usr/include
42 HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
43 HOSTLOADLIBES_sockex1 += -lelf
44 HOSTLOADLIBES_sockex2 += -lelf
45 HOSTLOADLIBES_sockex3 += -lelf
46 HOSTLOADLIBES_tracex1 += -lelf
47 HOSTLOADLIBES_tracex2 += -lelf
48 HOSTLOADLIBES_tracex3 += -lelf
49 HOSTLOADLIBES_tracex4 += -lelf -lrt
50 HOSTLOADLIBES_tracex5 += -lelf
52 # point this to your LLVM backend with bpf support
53 LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc
55 $(obj)/%.o: $(src)/%.c
56 clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
57 -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \
58 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@