samples/seccomp/Makefile

   1 # kbuild trick to avoid linker error. Can be omitted if a module is built.
   2 obj- := dummy.o
   3
   4 hostprogs-$(CONFIG_SECCOMP_FILTER) := bpf-fancy dropper bpf-direct
   5
   6 HOSTCFLAGS_bpf-fancy.o += -I$(objtree)/usr/include
   7 HOSTCFLAGS_bpf-fancy.o += -idirafter $(objtree)/include
   8 HOSTCFLAGS_bpf-helper.o += -I$(objtree)/usr/include
   9 HOSTCFLAGS_bpf-helper.o += -idirafter $(objtree)/include
  10 bpf-fancy-objs := bpf-fancy.o bpf-helper.o
  11
  12 HOSTCFLAGS_dropper.o += -I$(objtree)/usr/include
  13 HOSTCFLAGS_dropper.o += -idirafter $(objtree)/include
  14 dropper-objs := dropper.o
  15
  16 HOSTCFLAGS_bpf-direct.o += -I$(objtree)/usr/include
  17 HOSTCFLAGS_bpf-direct.o += -idirafter $(objtree)/include
  18 bpf-direct-objs := bpf-direct.o
  19
  20 # Try to match the kernel target.
  21 ifndef CROSS_COMPILE
  22 ifndef CONFIG_64BIT
  23
  24 # s390 has -m31 flag to build 31 bit binaries
  25 ifndef CONFIG_S390
  26 MFLAG = -m32
  27 else
  28 MFLAG = -m31
  29 endif
  30
  31 HOSTCFLAGS_bpf-direct.o += $(MFLAG)
  32 HOSTCFLAGS_dropper.o += $(MFLAG)
  33 HOSTCFLAGS_bpf-helper.o += $(MFLAG)
  34 HOSTCFLAGS_bpf-fancy.o += $(MFLAG)
  35 HOSTLOADLIBES_bpf-direct += $(MFLAG)
  36 HOSTLOADLIBES_bpf-fancy += $(MFLAG)
  37 HOSTLOADLIBES_dropper += $(MFLAG)
  38 endif
  39 always := $(hostprogs-y)
  40 else
  41 # MIPS system calls are defined based on the -mabi that is passed
  42 # to the toolchain which may or may not be a valid option
  43 # for the host toolchain. So disable tests if target architecture
  44 # is MIPS but the host isn't.
  45 ifndef CONFIG_MIPS
  46 always := $(hostprogs-y)
  47 endif
  48 endif