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 += tracex1
  10 hostprogs-y += tracex2
  11 hostprogs-y += tracex3
  12 hostprogs-y += tracex4
  13
  14 test_verifier-objs := test_verifier.o libbpf.o
  15 test_maps-objs := test_maps.o libbpf.o
  16 sock_example-objs := sock_example.o libbpf.o
  17 sockex1-objs := bpf_load.o libbpf.o sockex1_user.o
  18 sockex2-objs := bpf_load.o libbpf.o sockex2_user.o
  19 tracex1-objs := bpf_load.o libbpf.o tracex1_user.o
  20 tracex2-objs := bpf_load.o libbpf.o tracex2_user.o
  21 tracex3-objs := bpf_load.o libbpf.o tracex3_user.o
  22 tracex4-objs := bpf_load.o libbpf.o tracex4_user.o
  23
  24 # Tell kbuild to always build the programs
  25 always := $(hostprogs-y)
  26 always += sockex1_kern.o
  27 always += sockex2_kern.o
  28 always += tracex1_kern.o
  29 always += tracex2_kern.o
  30 always += tracex3_kern.o
  31 always += tracex4_kern.o
  32 always += tcbpf1_kern.o
  33
  34 HOSTCFLAGS += -I$(objtree)/usr/include
  35
  36 HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
  37 HOSTLOADLIBES_sockex1 += -lelf
  38 HOSTLOADLIBES_sockex2 += -lelf
  39 HOSTLOADLIBES_tracex1 += -lelf
  40 HOSTLOADLIBES_tracex2 += -lelf
  41 HOSTLOADLIBES_tracex3 += -lelf
  42 HOSTLOADLIBES_tracex4 += -lelf -lrt
  43
  44 # point this to your LLVM backend with bpf support
  45 LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc
  46
  47 %.o: %.c
  48         clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
  49                 -D__KERNEL__ -Wno-unused-value -Wno-pointer-sign \
  50                 -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@