1 files changed, 60 insertions, 0 deletions
diff --git a/lib/Makefile b/lib/Makefile
new file mode 100644
index 0000000..5ee035d
--- /dev/null
+++ b/lib/Makefile
@@ -0,0 +1,60 @@
+
+LIBBPF_CFLAGS:=$(if $(CFLAGS),$(CFLAGS),-g -O2 -Werror -Wall) -fPIC
+
+LIB_DIR = .
+include defines.mk
+
+SUBDIRS=util testing
+.PHONY: $(SUBDIRS)
+
+all: $(SUBDIRS) libxdp
+
+util: libxdp
+	@echo; echo "  $@"; $(MAKE) -C $@
+
+testing: libxdp util
+	@echo; echo "  $@"; $(MAKE) -C $@
+
+.PHONY: libxdp
+libxdp: $(OBJECT_LIBBPF)
+	@echo; echo "  $@"; $(MAKE) -C $@
+
+.PHONY: clean
+clean: libbpf_clean
+	@for i in $(SUBDIRS) libxdp; \
+	do $(MAKE) -C $$i clean; done
+
+.PHONY: install
+install: libxdp_install
+	$(MAKE) -C testing install
+
+.PHONY: libxdp_install
+libxdp_install: libxdp
+	install -m 0755 -d $(DESTDIR)$(HDRDIR)
+	$(MAKE) -C libxdp install
+
+libbpf: $(OBJECT_LIBBPF)
+
+# Handle libbpf as git submodule
+ifeq ($(SYSTEM_LIBBPF),n)
+ifeq ($(VERBOSE),0)
+P:= >/dev/null
+endif
+
+# Detect submodule libbpf source file changes
+LIBBPF_SOURCES := $(wildcard libbpf/src/*.[ch])
+
+.PHONY: libbpf_clean
+libbpf/src/libbpf.a: $(LIBBPF_SOURCES)
+	@echo ; echo "  libbpf"
+	$(QUIET_CC)$(MAKE) -C libbpf/src CFLAGS="$(LIBBPF_CFLAGS)" $P
+	$(QUIET_INSTALL)$(MAKE) -C libbpf/src install_headers DESTDIR=root $P
+
+libbpf_clean:
+	$(Q)$(MAKE) -C libbpf/src clean $P
+
+else
+
+libbpf_clean:
+	@echo -n
+endif