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
16TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
17all: $(TEST_CUSTOM_PROGS)
18
19$(TEST_CUSTOM_PROGS): urandom_read
20
21urandom_read: urandom_read.c
22	$(CC) -o $(TEST_CUSTOM_PROGS) -static $<
23
24# Order correspond to 'make run_tests' order
25TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
26	test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
27	test_sock test_sock_addr
28
29TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
30	test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o     \
31	sockmap_verdict_prog.o dev_cgroup.o sample_ret0.o test_tracepoint.o \
32	test_l4lb_noinline.o test_xdp_noinline.o test_stacktrace_map.o \
33	sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \
34	sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o
35
36# Order correspond to 'make run_tests' order
37TEST_PROGS := test_kmod.sh \
38	test_libbpf.sh \
39	test_xdp_redirect.sh \
40	test_xdp_meta.sh \
41	test_offload.py \
42	test_sock_addr.sh
43
44# Compile but not part of 'make run_tests'
45TEST_GEN_PROGS_EXTENDED = test_libbpf_open
46
47include ../lib.mk
48
49BPFOBJ := $(OUTPUT)/libbpf.a
50
51$(TEST_GEN_PROGS): $(BPFOBJ)
52
53$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a
54
55$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
56$(OUTPUT)/test_sock: cgroup_helpers.c
57$(OUTPUT)/test_sock_addr: cgroup_helpers.c
58
59.PHONY: force
60
61# force a rebuild of BPFOBJ when its dependencies are updated
62force:
63
64$(BPFOBJ): force
65	$(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
66
67CLANG ?= clang
68LLC   ?= llc
69
70PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
71
72# Let newer LLVM versions transparently probe the kernel for availability
73# of full BPF instruction set.
74ifeq ($(PROBE),)
75  CPU ?= probe
76else
77  CPU ?= generic
78endif
79
80CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
81	      -Wno-compare-distinct-pointer-types
82
83$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
84$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline
85
86$(OUTPUT)/%.o: %.c
87	$(CLANG) $(CLANG_FLAGS) \
88		 -O2 -target bpf -emit-llvm -c $< -o - |      \
89	$(LLC) -march=bpf -mcpu=$(CPU) -filetype=obj -o $@
90
91EXTRA_CLEAN := $(TEST_CUSTOM_PROGS)
92