1# SPDX-License-Identifier: GPL-2.0
2
3LIBDIR := ../../../lib
4BPFDIR := $(LIBDIR)/bpf
5APIDIR := ../../../include/uapi
6GENDIR := ../../../../include/generated
7GENHDR := $(GENDIR)/autoconf.h
8
9ifneq ($(wildcard $(GENHDR)),)
10  GENFLAGS := -DHAVE_GENHDR
11endif
12
13CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
14LDLIBS += -lcap -lelf -lrt -lpthread
15
16# Order correspond to 'make run_tests' order
17TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
18	test_align test_verifier_log test_dev_cgroup test_tcpbpf_user
19
20TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
21	test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o     \
22	sockmap_verdict_prog.o dev_cgroup.o sample_ret0.o test_tracepoint.o \
23	test_l4lb_noinline.o test_xdp_noinline.o test_stacktrace_map.o \
24	sample_map_ret0.o test_tcpbpf_kern.o
25
26# Order correspond to 'make run_tests' order
27TEST_PROGS := test_kmod.sh \
28	test_libbpf.sh \
29	test_xdp_redirect.sh \
30	test_xdp_meta.sh \
31	test_offload.py
32
33# Compile but not part of 'make run_tests'
34TEST_GEN_PROGS_EXTENDED = test_libbpf_open
35
36include ../lib.mk
37
38BPFOBJ := $(OUTPUT)/libbpf.a cgroup_helpers.c
39
40$(TEST_GEN_PROGS): $(BPFOBJ)
41
42$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a
43
44.PHONY: force
45
46# force a rebuild of BPFOBJ when its dependencies are updated
47force:
48
49$(BPFOBJ): force
50	$(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
51
52CLANG ?= clang
53LLC   ?= llc
54
55PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
56
57# Let newer LLVM versions transparently probe the kernel for availability
58# of full BPF instruction set.
59ifeq ($(PROBE),)
60  CPU ?= probe
61else
62  CPU ?= generic
63endif
64
65CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
66	      -Wno-compare-distinct-pointer-types
67
68$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
69$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline
70
71$(OUTPUT)/%.o: %.c
72	$(CLANG) $(CLANG_FLAGS) \
73		 -O2 -target bpf -emit-llvm -c $< -o - |      \
74	$(LLC) -march=bpf -mcpu=$(CPU) -filetype=obj -o $@
75