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$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
14 LDLIBS += -lcap -lelf -lrt -lpthread
16 TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
17 all: $(TEST_CUSTOM_PROGS)
19 $(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c
20 $(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id
22 # Order correspond to 'make run_tests' order
23 TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
24 test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
25 test_sock test_btf test_sockmap test_lirc_mode2_user get_cgroup_id_user \
26 test_socket_cookie test_cgroup_storage test_select_reuseport test_section_names \
27 test_netcnt test_tcpnotify_user
29 TEST_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 test_tcpnotify_kern.o \
34 sample_map_ret0.o test_tcpbpf_kern.o test_stacktrace_build_id.o \
35 sockmap_tcp_msg_prog.o connect4_prog.o connect6_prog.o test_adjust_tail.o \
36 test_btf_haskv.o test_btf_nokv.o test_sockmap_kern.o test_tunnel_kern.o \
37 test_get_stack_rawtp.o test_sockmap_kern.o test_sockhash_kern.o \
38 test_lwt_seg6local.o sendmsg4_prog.o sendmsg6_prog.o test_lirc_mode2_kern.o \
39 get_cgroup_id_kern.o socket_cookie_prog.o test_select_reuseport_kern.o \
40 test_skb_cgroup_id_kern.o bpf_flow.o netcnt_prog.o \
41 test_sk_lookup_kern.o test_xdp_vlan.o test_queue_map.o test_stack_map.o \
42 xdp_dummy.o test_map_in_map.o
44 # Order correspond to 'make run_tests' order
45 TEST_PROGS := test_kmod.sh \
47 test_xdp_redirect.sh \
52 test_lwt_seg6local.sh \
54 test_skb_cgroup_id.sh \
55 test_flow_dissector.sh \
58 TEST_PROGS_EXTENDED := with_addr.sh \
63 # Compile but not part of 'make run_tests'
64 TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr test_skb_cgroup_id_user \
65 flow_dissector_load test_flow_dissector
69 BPFOBJ := $(OUTPUT)/libbpf.a
71 $(TEST_GEN_PROGS): $(BPFOBJ)
73 $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a
75 $(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
76 $(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
77 $(OUTPUT)/test_sock: cgroup_helpers.c
78 $(OUTPUT)/test_sock_addr: cgroup_helpers.c
79 $(OUTPUT)/test_socket_cookie: cgroup_helpers.c
80 $(OUTPUT)/test_sockmap: cgroup_helpers.c
81 $(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c
82 $(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
83 $(OUTPUT)/test_progs: trace_helpers.c
84 $(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
85 $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
86 $(OUTPUT)/test_netcnt: cgroup_helpers.c
90 # force a rebuild of BPFOBJ when its dependencies are updated
94 $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
98 LLVM_OBJCOPY ?= llvm-objcopy
101 PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
103 # Let newer LLVM versions transparently probe the kernel for availability
104 # of full BPF instruction set.
111 # Get Clang's default includes on this system, as opposed to those seen by
112 # '-target bpf'. This fixes "missing" files on some architectures/distros,
113 # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
115 # Use '-idirafter': Don't interfere with include mechanics except where the
116 # build would have failed anyways.
117 CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \
118 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
120 CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
121 $(CLANG_SYS_INCLUDES) \
122 -Wno-compare-distinct-pointer-types
124 $(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
125 $(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline
127 $(OUTPUT)/test_queue_map.o: test_queue_stack_map.h
128 $(OUTPUT)/test_stack_map.o: test_queue_stack_map.h
130 BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris)
131 BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF)
132 BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm')
133 BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \
134 $(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \
135 readelf -S ./llvm_btf_verify.o | grep BTF; \
136 /bin/rm -f ./llvm_btf_verify.o)
138 ifneq ($(BTF_LLVM_PROBE),)
141 ifneq ($(BTF_LLC_PROBE),)
142 ifneq ($(BTF_PAHOLE_PROBE),)
143 ifneq ($(BTF_OBJCOPY_PROBE),)
145 LLC_FLAGS += -mattr=dwarfris
152 # Have one program compiled without "-target bpf" to test whether libbpf loads
154 $(OUTPUT)/test_xdp.o: test_xdp.c
155 $(CLANG) $(CLANG_FLAGS) \
156 -O2 -emit-llvm -c $< -o - | \
157 $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
158 ifeq ($(DWARF2BTF),y)
163 $(CLANG) $(CLANG_FLAGS) \
164 -O2 -target bpf -emit-llvm -c $< -o - | \
165 $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
166 ifeq ($(DWARF2BTF),y)
170 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS)