first commit

1 files changed, 42 insertions, 0 deletions

diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
new file mode 100644
index 000000000..7203e66dc
--- /dev/null
+++ b/samples/seccomp/Makefile
@@ -0,0 +1,42 @@
+# kbuild trick to avoid linker error. Can be omitted if a module is built.
+obj- := dummy.o
+
+hostprogs-$(CONFIG_SECCOMP_FILTER) := bpf-fancy dropper bpf-direct
+
+HOSTCFLAGS_bpf-fancy.o += -I$(objtree)/usr/include
+HOSTCFLAGS_bpf-fancy.o += -idirafter $(objtree)/include
+HOSTCFLAGS_bpf-helper.o += -I$(objtree)/usr/include
+HOSTCFLAGS_bpf-helper.o += -idirafter $(objtree)/include
+bpf-fancy-objs := bpf-fancy.o bpf-helper.o
+
+HOSTCFLAGS_dropper.o += -I$(objtree)/usr/include
+HOSTCFLAGS_dropper.o += -idirafter $(objtree)/include
+dropper-objs := dropper.o
+
+HOSTCFLAGS_bpf-direct.o += -I$(objtree)/usr/include
+HOSTCFLAGS_bpf-direct.o += -idirafter $(objtree)/include
+bpf-direct-objs := bpf-direct.o
+
+# Try to match the kernel target.
+ifndef CONFIG_64BIT
+ifndef CROSS_COMPILE
+
+# s390 has -m31 flag to build 31 bit binaries
+ifndef CONFIG_S390
+MFLAG = -m32
+else
+MFLAG = -m31
+endif
+
+HOSTCFLAGS_bpf-direct.o += $(MFLAG)
+HOSTCFLAGS_dropper.o += $(MFLAG)
+HOSTCFLAGS_bpf-helper.o += $(MFLAG)
+HOSTCFLAGS_bpf-fancy.o += $(MFLAG)
+HOSTLOADLIBES_bpf-direct += $(MFLAG)
+HOSTLOADLIBES_bpf-fancy += $(MFLAG)
+HOSTLOADLIBES_dropper += $(MFLAG)
+endif
+endif
+
+# Tell kbuild to always build the programs
+always := $(hostprogs-y)