1 # SPDX-License-Identifier: GPL-2.0
4 BPFDIR := $(LIBDIR)/bpf
5 APIDIR := ../../../include/uapi
6 GENDIR := ../../../../include/generated
7 GENHDR := $(GENDIR)/autoconf.h
9 ifneq ($(wildcard $(GENHDR)),)
10 GENFLAGS := -DHAVE_GENHDR
13 CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
14 LDLIBS += -lcap -lelf -lrt
16 TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
17 test_align test_verifier_log test_dev_cgroup
19 TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
20 test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \
21 sockmap_verdict_prog.o dev_cgroup.o
23 TEST_PROGS := test_kmod.sh test_xdp_redirect.sh test_xdp_meta.sh
27 BPFOBJ := $(OUTPUT)/libbpf.a $(OUTPUT)/cgroup_helpers.c
29 $(TEST_GEN_PROGS): $(BPFOBJ)
33 # force a rebuild of BPFOBJ when its dependencies are updated
37 $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
42 PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
44 # Let newer LLVM versions transparently probe the kernel for availability
45 # of full BPF instruction set.
53 $(CLANG) -I. -I./include/uapi -I../../../include/uapi \
54 -Wno-compare-distinct-pointer-types \
55 -O2 -target bpf -emit-llvm -c $< -o - | \
56 $(LLC) -march=bpf -mcpu=$(CPU) -filetype=obj -o $@