selftests: bpf: tc-bpf flow shaping with EDT
[linux-2.6-block.git] / tools / testing / selftests / bpf / Makefile
1 # SPDX-License-Identifier: GPL-2.0
2
3 LIBDIR := ../../../lib
4 BPFDIR := $(LIBDIR)/bpf
5 APIDIR := ../../../include/uapi
6 GENDIR := ../../../../include/generated
7 GENHDR := $(GENDIR)/autoconf.h
8
9 ifneq ($(wildcard $(GENHDR)),)
10   GENFLAGS := -DHAVE_GENHDR
11 endif
12
13 CLANG           ?= clang
14 LLC             ?= llc
15 LLVM_OBJCOPY    ?= llvm-objcopy
16 LLVM_READELF    ?= llvm-readelf
17 BTF_PAHOLE      ?= pahole
18 CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
19 LDLIBS += -lcap -lelf -lrt -lpthread
20
21 # Order correspond to 'make run_tests' order
22 TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
23         test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
24         test_sock test_btf test_sockmap test_lirc_mode2_user get_cgroup_id_user \
25         test_socket_cookie test_cgroup_storage test_select_reuseport test_section_names \
26         test_netcnt test_tcpnotify_user test_sock_fields
27
28 BPF_OBJ_FILES = $(patsubst %.c,%.o, $(notdir $(wildcard progs/*.c)))
29 TEST_GEN_FILES = $(BPF_OBJ_FILES)
30
31 # Also test sub-register code-gen if LLVM has eBPF v3 processor support which
32 # contains both ALU32 and JMP32 instructions.
33 SUBREG_CODEGEN := $(shell echo "int cal(int a) { return a > 0; }" | \
34                         $(CLANG) -target bpf -O2 -emit-llvm -S -x c - -o - | \
35                         $(LLC) -mattr=+alu32 -mcpu=v3 2>&1 | \
36                         grep 'if w')
37 ifneq ($(SUBREG_CODEGEN),)
38 TEST_GEN_FILES += $(patsubst %.o,alu32/%.o, $(BPF_OBJ_FILES))
39 endif
40
41 # Order correspond to 'make run_tests' order
42 TEST_PROGS := test_kmod.sh \
43         test_libbpf.sh \
44         test_xdp_redirect.sh \
45         test_xdp_meta.sh \
46         test_offload.py \
47         test_sock_addr.sh \
48         test_tunnel.sh \
49         test_lwt_seg6local.sh \
50         test_lirc_mode2.sh \
51         test_skb_cgroup_id.sh \
52         test_flow_dissector.sh \
53         test_xdp_vlan.sh \
54         test_lwt_ip_encap.sh \
55         test_tcp_check_syncookie.sh \
56         test_tc_tunnel.sh \
57         test_tc_edt.sh
58
59 TEST_PROGS_EXTENDED := with_addr.sh \
60         with_tunnels.sh \
61         tcp_client.py \
62         tcp_server.py
63
64 # Compile but not part of 'make run_tests'
65 TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr test_skb_cgroup_id_user \
66         flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user
67
68 include ../lib.mk
69
70 # NOTE: $(OUTPUT) won't get default value if used before lib.mk
71 TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
72 all: $(TEST_CUSTOM_PROGS)
73
74 $(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c
75         $(CC) -o $@ $< -Wl,--build-id
76
77 BPFOBJ := $(OUTPUT)/libbpf.a
78
79 $(TEST_GEN_PROGS): $(BPFOBJ)
80
81 $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/libbpf.a
82
83 $(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
84 $(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
85 $(OUTPUT)/test_sock: cgroup_helpers.c
86 $(OUTPUT)/test_sock_addr: cgroup_helpers.c
87 $(OUTPUT)/test_socket_cookie: cgroup_helpers.c
88 $(OUTPUT)/test_sockmap: cgroup_helpers.c
89 $(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c
90 $(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
91 $(OUTPUT)/test_progs: trace_helpers.c
92 $(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
93 $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
94 $(OUTPUT)/test_netcnt: cgroup_helpers.c
95 $(OUTPUT)/test_sock_fields: cgroup_helpers.c
96
97 .PHONY: force
98
99 # force a rebuild of BPFOBJ when its dependencies are updated
100 force:
101
102 $(BPFOBJ): force
103         $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/
104
105 PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
106
107 # Let newer LLVM versions transparently probe the kernel for availability
108 # of full BPF instruction set.
109 ifeq ($(PROBE),)
110   CPU ?= probe
111 else
112   CPU ?= generic
113 endif
114
115 # Get Clang's default includes on this system, as opposed to those seen by
116 # '-target bpf'. This fixes "missing" files on some architectures/distros,
117 # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
118 #
119 # Use '-idirafter': Don't interfere with include mechanics except where the
120 # build would have failed anyways.
121 CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \
122         | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
123
124 CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
125               $(CLANG_SYS_INCLUDES) \
126               -Wno-compare-distinct-pointer-types
127
128 $(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
129 $(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline
130
131 $(OUTPUT)/test_queue_map.o: test_queue_stack_map.h
132 $(OUTPUT)/test_stack_map.o: test_queue_stack_map.h
133
134 $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
135 $(OUTPUT)/test_progs.o: flow_dissector_load.h
136
137 BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris)
138 BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF)
139 BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm')
140 BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \
141                           $(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \
142                           $(LLVM_READELF) -S ./llvm_btf_verify.o | grep BTF; \
143                           /bin/rm -f ./llvm_btf_verify.o)
144
145 ifneq ($(BTF_LLVM_PROBE),)
146         CLANG_FLAGS += -g
147 else
148 ifneq ($(BTF_LLC_PROBE),)
149 ifneq ($(BTF_PAHOLE_PROBE),)
150 ifneq ($(BTF_OBJCOPY_PROBE),)
151         CLANG_FLAGS += -g
152         LLC_FLAGS += -mattr=dwarfris
153         DWARF2BTF = y
154 endif
155 endif
156 endif
157 endif
158
159 TEST_PROGS_CFLAGS := -I. -I$(OUTPUT)
160 TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier
161
162 ifneq ($(SUBREG_CODEGEN),)
163 ALU32_BUILD_DIR = $(OUTPUT)/alu32
164 TEST_CUSTOM_PROGS += $(ALU32_BUILD_DIR)/test_progs_32
165 $(ALU32_BUILD_DIR):
166         mkdir -p $@
167
168 $(ALU32_BUILD_DIR)/urandom_read: $(OUTPUT)/urandom_read
169         cp $< $@
170
171 $(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(OUTPUT)/libbpf.a\
172                                                 $(ALU32_BUILD_DIR) \
173                                                 $(ALU32_BUILD_DIR)/urandom_read
174         $(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) \
175                 -o $(ALU32_BUILD_DIR)/test_progs_32 \
176                 test_progs.c trace_helpers.c prog_tests/*.c \
177                 $(OUTPUT)/libbpf.a $(LDLIBS)
178
179 $(ALU32_BUILD_DIR)/test_progs_32: $(PROG_TESTS_H)
180 $(ALU32_BUILD_DIR)/test_progs_32: prog_tests/*.c
181
182 $(ALU32_BUILD_DIR)/%.o: progs/%.c $(ALU32_BUILD_DIR) \
183                                         $(ALU32_BUILD_DIR)/test_progs_32
184         $(CLANG) $(CLANG_FLAGS) \
185                  -O2 -target bpf -emit-llvm -c $< -o - |      \
186         $(LLC) -march=bpf -mattr=+alu32 -mcpu=$(CPU) $(LLC_FLAGS) \
187                 -filetype=obj -o $@
188 ifeq ($(DWARF2BTF),y)
189         $(BTF_PAHOLE) -J $@
190 endif
191 endif
192
193 # Have one program compiled without "-target bpf" to test whether libbpf loads
194 # it successfully
195 $(OUTPUT)/test_xdp.o: progs/test_xdp.c
196         $(CLANG) $(CLANG_FLAGS) \
197                 -O2 -emit-llvm -c $< -o - | \
198         $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
199 ifeq ($(DWARF2BTF),y)
200         $(BTF_PAHOLE) -J $@
201 endif
202
203 $(OUTPUT)/%.o: progs/%.c
204         $(CLANG) $(CLANG_FLAGS) \
205                  -O2 -target bpf -emit-llvm -c $< -o - |      \
206         $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
207 ifeq ($(DWARF2BTF),y)
208         $(BTF_PAHOLE) -J $@
209 endif
210
211 PROG_TESTS_H := $(OUTPUT)/prog_tests/tests.h
212 $(OUTPUT)/test_progs: $(PROG_TESTS_H)
213 $(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)
214 $(OUTPUT)/test_progs: prog_tests/*.c
215
216 PROG_TESTS_DIR = $(OUTPUT)/prog_tests
217 $(PROG_TESTS_DIR):
218         mkdir -p $@
219
220 PROG_TESTS_FILES := $(wildcard prog_tests/*.c)
221 $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)
222         $(shell ( cd prog_tests/; \
223                   echo '/* Generated header, do not edit */'; \
224                   echo '#ifdef DECLARE'; \
225                   ls *.c 2> /dev/null | \
226                         sed -e 's@\([^\.]*\)\.c@extern void test_\1(void);@'; \
227                   echo '#endif'; \
228                   echo '#ifdef CALL'; \
229                   ls *.c 2> /dev/null | \
230                         sed -e 's@\([^\.]*\)\.c@test_\1();@'; \
231                   echo '#endif' \
232                  ) > $(PROG_TESTS_H))
233
234 VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
235 $(OUTPUT)/test_verifier: $(VERIFIER_TESTS_H)
236 $(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
237
238 VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
239 $(VERIFIER_TESTS_DIR):
240         mkdir -p $@
241
242 VERIFIER_TEST_FILES := $(wildcard verifier/*.c)
243 $(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)
244         $(shell ( cd verifier/; \
245                   echo '/* Generated header, do not edit */'; \
246                   echo '#ifdef FILL_ARRAY'; \
247                   ls *.c 2> /dev/null | \
248                         sed -e 's@\(.*\)@#include \"\1\"@'; \
249                   echo '#endif' \
250                  ) > $(VERIFIER_TESTS_H))
251
252 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(ALU32_BUILD_DIR) \
253         $(VERIFIER_TESTS_H) $(PROG_TESTS_H)