samples/seccomp/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # kbuild trick to avoid linker error. Can be omitted if a module is built.
   3 obj- := dummy.o
   4
   5 hostprogs-$(CONFIG_SAMPLE_SECCOMP) := bpf-fancy dropper bpf-direct
   6
   7 HOSTCFLAGS_bpf-fancy.o += -I$(objtree)/usr/include
   8 HOSTCFLAGS_bpf-fancy.o += -idirafter $(objtree)/include
   9 HOSTCFLAGS_bpf-helper.o += -I$(objtree)/usr/include
  10 HOSTCFLAGS_bpf-helper.o += -idirafter $(objtree)/include
  11 bpf-fancy-objs := bpf-fancy.o bpf-helper.o
  12
  13 HOSTCFLAGS_dropper.o += -I$(objtree)/usr/include
  14 HOSTCFLAGS_dropper.o += -idirafter $(objtree)/include
  15 dropper-objs := dropper.o
  16
  17 HOSTCFLAGS_bpf-direct.o += -I$(objtree)/usr/include
  18 HOSTCFLAGS_bpf-direct.o += -idirafter $(objtree)/include
  19 bpf-direct-objs := bpf-direct.o
  20
  21 # Try to match the kernel target.
  22 ifndef CROSS_COMPILE
  23 ifndef CONFIG_64BIT
  24
  25 # s390 has -m31 flag to build 31 bit binaries
  26 ifndef CONFIG_S390
  27 MFLAG = -m32
  28 else
  29 MFLAG = -m31
  30 endif
  31
  32 HOSTCFLAGS_bpf-direct.o += $(MFLAG)
  33 HOSTCFLAGS_dropper.o += $(MFLAG)
  34 HOSTCFLAGS_bpf-helper.o += $(MFLAG)
  35 HOSTCFLAGS_bpf-fancy.o += $(MFLAG)
  36 HOSTLOADLIBES_bpf-direct += $(MFLAG)
  37 HOSTLOADLIBES_bpf-fancy += $(MFLAG)
  38 HOSTLOADLIBES_dropper += $(MFLAG)
  39 endif
  40 always := $(hostprogs-m)
  41 else
  42 # MIPS system calls are defined based on the -mabi that is passed
  43 # to the toolchain which may or may not be a valid option
  44 # for the host toolchain. So disable tests if target architecture
  45 # is MIPS but the host isn't.
  46 ifndef CONFIG_MIPS
  47 always := $(hostprogs-m)
  48 endif
  49 endif