# SPDX-License-Identifier: GPL-2.0

LIBBPF_SRCS = $(srctree)/tools/lib/bpf/
LIBBPF_A = $(obj)/libbpf.a
LIBBPF_OUT = $(abspath $(obj))

# Although not in use by libbpf's Makefile, set $(O) so that the "dummy" test
# in tools/scripts/Makefile.include always succeeds when building the kernel
# with $(O) pointing to a relative path, as in "make O=build bindeb-pkg".
$(LIBBPF_A):
	$(Q)$(MAKE) -C $(LIBBPF_SRCS) O=$(LIBBPF_OUT)/ OUTPUT=$(LIBBPF_OUT)/ $(LIBBPF_OUT)/libbpf.a

userccflags += -I$(LIBBPF_OUT) -I $(srctree)/tools/include/ \
	-I $(srctree)/tools/include/uapi \
	-I $(srctree)/tools/lib/ -Wno-unused-result

userprogs := bpf_preload_umd

clean-files := $(userprogs) libbpf_version.h bpf_helper_defs.h FEATURE-DUMP.libbpf staticobjs/ feature/

$(obj)/iterators/iterators.o: $(LIBBPF_A)

bpf_preload_umd-objs := iterators/iterators.o
bpf_preload_umd-userldlibs := $(LIBBPF_A) -lelf -lz

$(obj)/bpf_preload_umd: $(LIBBPF_A)

$(obj)/bpf_preload_umd_blob.o: $(obj)/bpf_preload_umd

obj-$(CONFIG_BPF_PRELOAD_UMD) += bpf_preload.o
bpf_preload-objs += bpf_preload_kern.o bpf_preload_umd_blob.o