1 # SPDX-License-Identifier: GPL-2.0
5 LLVM_STRIP ?= llvm-strip
6 DEFAULT_BPFTOOL := $(OUTPUT)/sbin/bpftool
7 BPFTOOL ?= $(DEFAULT_BPFTOOL)
8 LIBBPF_SRC := $(abspath ../../../../tools/lib/bpf)
9 BPFOBJ := $(OUTPUT)/libbpf.a
10 BPF_INCLUDE := $(OUTPUT)
11 INCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../../../tools/lib) \
12 -I$(abspath ../../../../tools/include/uapi)
15 abs_out := $(abspath $(OUTPUT))
21 msg = @printf ' %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
22 MAKEFLAGS += --no-print-directory
23 submake_extras := feature_display=0
34 $(Q)rm -rf $(OUTPUT) iterators
36 iterators.skel.h: $(OUTPUT)/iterators.bpf.o | $(BPFTOOL)
37 $(call msg,GEN-SKEL,$@)
38 $(Q)$(BPFTOOL) gen skeleton $< > $@
41 $(OUTPUT)/iterators.bpf.o: iterators.bpf.c $(BPFOBJ) | $(OUTPUT)
43 $(Q)$(CLANG) -g -O2 -target bpf $(INCLUDES) \
44 -c $(filter %.c,$^) -o $@ && \
49 $(Q)mkdir -p $(OUTPUT)
51 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)
52 $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) \
53 OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
56 $(Q)$(MAKE) $(submake_extras) -C ../../../../tools/bpf/bpftool \
57 prefix= OUTPUT=$(abs_out)/ DESTDIR=$(abs_out) install