samples/bpf/Makefile

   1 # kbuild trick to avoid linker error. Can be omitted if a module is built.
   2 obj- := dummy.o
   3
   4 # List of programs to build
   5 hostprogs-y := test_verifier test_maps
   6 hostprogs-y += sock_example
   7 hostprogs-y += sockex1
   8 hostprogs-y += sockex2
   9 hostprogs-y += sockex3
  10 hostprogs-y += tracex1
  11 hostprogs-y += tracex2
  12 hostprogs-y += tracex3
  13 hostprogs-y += tracex4
  14 hostprogs-y += tracex5
  15 hostprogs-y += lathist
  16
  17 test_verifier-objs := test_verifier.o libbpf.o
  18 test_maps-objs := test_maps.o libbpf.o
  19 sock_example-objs := sock_example.o libbpf.o
  20 sockex1-objs := bpf_load.o libbpf.o sockex1_user.o
  21 sockex2-objs := bpf_load.o libbpf.o sockex2_user.o
  22 sockex3-objs := bpf_load.o libbpf.o sockex3_user.o
  23 tracex1-objs := bpf_load.o libbpf.o tracex1_user.o
  24 tracex2-objs := bpf_load.o libbpf.o tracex2_user.o
  25 tracex3-objs := bpf_load.o libbpf.o tracex3_user.o
  26 tracex4-objs := bpf_load.o libbpf.o tracex4_user.o
  27 tracex5-objs := bpf_load.o libbpf.o tracex5_user.o
  28 lathist-objs := bpf_load.o libbpf.o lathist_user.o
  29
  30 # Tell kbuild to always build the programs
  31 always := $(hostprogs-y)
  32 always += sockex1_kern.o
  33 always += sockex2_kern.o
  34 always += sockex3_kern.o
  35 always += tracex1_kern.o
  36 always += tracex2_kern.o
  37 always += tracex3_kern.o
  38 always += tracex4_kern.o
  39 always += tracex5_kern.o
  40 always += tcbpf1_kern.o
  41 always += lathist_kern.o
  42
  43 HOSTCFLAGS += -I$(objtree)/usr/include
  44
  45 HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
  46 HOSTLOADLIBES_sockex1 += -lelf
  47 HOSTLOADLIBES_sockex2 += -lelf
  48 HOSTLOADLIBES_sockex3 += -lelf
  49 HOSTLOADLIBES_tracex1 += -lelf
  50 HOSTLOADLIBES_tracex2 += -lelf
  51 HOSTLOADLIBES_tracex3 += -lelf
  52 HOSTLOADLIBES_tracex4 += -lelf -lrt
  53 HOSTLOADLIBES_tracex5 += -lelf
  54 HOSTLOADLIBES_lathist += -lelf
  55
  56 # point this to your LLVM backend with bpf support
  57 LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc
  58
  59 $(obj)/%.o: $(src)/%.c
  60         clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
  61                 -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \
  62                 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@