1 # SPDX-License-Identifier: GPL-2.0
2 include ..
/..
/..
/..
/scripts
/Kbuild.
include
3 include ..
/..
/..
/scripts
/Makefile.arch
6 TOOLSDIR
:= $(abspath ..
/..
/..
)
7 LIBDIR
:= $(TOOLSDIR
)/lib
8 BPFDIR
:= $(LIBDIR
)/bpf
9 TOOLSINCDIR
:= $(TOOLSDIR
)/include
10 BPFTOOLDIR
:= $(TOOLSDIR
)/bpf
/bpftool
11 APIDIR
:= $(TOOLSINCDIR
)/uapi
12 GENDIR
:= $(abspath ..
/..
/..
/..
/include/generated
)
13 GENHDR
:= $(GENDIR
)/autoconf.h
15 ifneq ($(wildcard $(GENHDR
)),)
16 GENFLAGS
:= -DHAVE_GENHDR
21 LLVM_OBJCOPY ?
= llvm-objcopy
22 BPF_GCC ?
= $(shell command
-v bpf-gcc
;)
24 CFLAGS
+= -g
-rdynamic
-Wall
-O2
$(GENFLAGS
) $(SAN_CFLAGS
) \
25 -I
$(CURDIR
) -I
$(INCLUDE_DIR
) -I
$(GENDIR
) -I
$(LIBDIR
) \
26 -I
$(TOOLSINCDIR
) -I
$(APIDIR
) \
27 -Dbpf_prog_load
=bpf_prog_test_load \
28 -Dbpf_load_program
=bpf_test_load_program
29 LDLIBS
+= -lcap
-lelf
-lz
-lrt
-lpthread
31 # Order correspond to 'make run_tests' order
32 TEST_GEN_PROGS
= test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
33 test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
34 test_sock test_btf test_sockmap get_cgroup_id_user test_socket_cookie \
36 test_netcnt test_tcpnotify_user test_sock_fields test_sysctl \
38 test_current_pid_tgid_new_ns
40 # Also test bpf-gcc, if present
42 TEST_GEN_PROGS
+= test_progs-bpf_gcc
46 TEST_FILES
= test_lwt_ip_encap.o \
49 # Order correspond to 'make run_tests' order
50 TEST_PROGS
:= test_kmod.sh \
51 test_xdp_redirect.sh \
57 test_lwt_seg6local.sh \
59 test_skb_cgroup_id.sh \
60 test_flow_dissector.sh \
61 test_xdp_vlan_mode_generic.sh \
62 test_xdp_vlan_mode_native.sh \
63 test_lwt_ip_encap.sh \
64 test_tcp_check_syncookie.sh \
68 test_bpftool_build.sh \
71 TEST_PROGS_EXTENDED
:= with_addr.sh \
77 # Compile but not part of 'make run_tests'
78 TEST_GEN_PROGS_EXTENDED
= test_sock_addr test_skb_cgroup_id_user \
79 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
80 test_lirc_mode2_user xdping test_cpp runqslower
82 TEST_CUSTOM_PROGS
= urandom_read
84 # Emit succinct information message describing current building step
85 # $1 - generic step name (e.g., CC, LINK, etc);
86 # $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
87 # $3 - target (assumed to be file); only file name will be emitted;
88 # $4 - optional extra arg, emitted as-is, if provided.
94 msg
= @printf
' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
95 MAKEFLAGS
+= --no-print-directory
96 submake_extras
:= feature_display
=0
99 # override lib.mk's default rules
100 OVERRIDE_TARGETS
:= 1
101 override define CLEAN
103 $(RM
) -r
$(TEST_GEN_PROGS
) $(TEST_GEN_PROGS_EXTENDED
) $(TEST_GEN_FILES
) $(EXTRA_CLEAN
)
108 SCRATCH_DIR
:= $(OUTPUT
)/tools
109 BUILD_DIR
:= $(SCRATCH_DIR
)/build
110 INCLUDE_DIR
:= $(SCRATCH_DIR
)/include
111 BPFOBJ
:= $(BUILD_DIR
)/libbpf
/libbpf.a
113 # Define simple and short `make test_progs`, `make test_sysctl`, etc targets
114 # to build individual tests.
115 # NOTE: Semicolon at the end is critical to override lib.mk's default static
117 $(notdir $(TEST_GEN_PROGS
) \
119 $(TEST_PROGS_EXTENDED
) \
120 $(TEST_GEN_PROGS_EXTENDED
) \
121 $(TEST_CUSTOM_PROGS
)): %: $(OUTPUT
)/% ;
124 $(call msg
,BINARY
,,$@
)
125 $(LINK.c
) $^
$(LDLIBS
) -o
$@
127 $(OUTPUT
)/urandom_read
: urandom_read.c
128 $(call msg
,BINARY
,,$@
)
129 $(CC
) $(LDFLAGS
) -o
$@
$< $(LDLIBS
) -Wl
,--build-id
131 $(OUTPUT
)/test_stub.o
: test_stub.c
$(BPFOBJ
)
133 $(CC
) -c
$(CFLAGS
) -o
$@
$<
135 VMLINUX_BTF_PATHS
:= $(if
$(O
),$(O
)/vmlinux
) \
136 $(if
$(KBUILD_OUTPUT
),$(KBUILD_OUTPUT
)/vmlinux
) \
137 ..
/..
/..
/..
/vmlinux \
138 /sys
/kernel
/btf
/vmlinux \
139 /boot
/vmlinux-
$(shell uname
-r
)
140 VMLINUX_BTF
:= $(abspath
$(firstword $(wildcard $(VMLINUX_BTF_PATHS
))))
142 $(OUTPUT
)/runqslower
: $(BPFOBJ
)
143 $(Q
)$(MAKE
) $(submake_extras
) -C
$(TOOLSDIR
)/bpf
/runqslower \
144 OUTPUT
=$(SCRATCH_DIR
)/ VMLINUX_BTF
=$(VMLINUX_BTF
) \
145 BPFOBJ
=$(BPFOBJ
) BPF_INCLUDE
=$(INCLUDE_DIR
) && \
146 cp
$(SCRATCH_DIR
)/runqslower
$@
148 $(TEST_GEN_PROGS
) $(TEST_GEN_PROGS_EXTENDED
): $(OUTPUT
)/test_stub.o
$(BPFOBJ
)
150 $(OUTPUT
)/test_dev_cgroup
: cgroup_helpers.c
151 $(OUTPUT
)/test_skb_cgroup_id_user
: cgroup_helpers.c
152 $(OUTPUT
)/test_sock
: cgroup_helpers.c
153 $(OUTPUT
)/test_sock_addr
: cgroup_helpers.c
154 $(OUTPUT
)/test_socket_cookie
: cgroup_helpers.c
155 $(OUTPUT
)/test_sockmap
: cgroup_helpers.c
156 $(OUTPUT
)/test_tcpbpf_user
: cgroup_helpers.c
157 $(OUTPUT
)/test_tcpnotify_user
: cgroup_helpers.c trace_helpers.c
158 $(OUTPUT
)/get_cgroup_id_user
: cgroup_helpers.c
159 $(OUTPUT
)/test_cgroup_storage
: cgroup_helpers.c
160 $(OUTPUT
)/test_netcnt
: cgroup_helpers.c
161 $(OUTPUT
)/test_sock_fields
: cgroup_helpers.c
162 $(OUTPUT
)/test_sysctl
: cgroup_helpers.c
164 DEFAULT_BPFTOOL
:= $(SCRATCH_DIR
)/sbin
/bpftool
165 BPFTOOL ?
= $(DEFAULT_BPFTOOL
)
166 $(DEFAULT_BPFTOOL
): $(wildcard $(BPFTOOLDIR
)/*.
[ch
] $(BPFTOOLDIR
)/Makefile
) \
167 $(BPFOBJ
) |
$(BUILD_DIR
)/bpftool
168 $(Q
)$(MAKE
) $(submake_extras
) -C
$(BPFTOOLDIR
) \
169 OUTPUT
=$(BUILD_DIR
)/bpftool
/ \
170 prefix= DESTDIR
=$(SCRATCH_DIR
)/ install
172 $(BPFOBJ
): $(wildcard $(BPFDIR
)/*.
[ch
] $(BPFDIR
)/Makefile
) \
173 ..
/..
/..
/include/uapi
/linux
/bpf.h \
174 |
$(INCLUDE_DIR
) $(BUILD_DIR
)/libbpf
175 $(Q
)$(MAKE
) $(submake_extras
) -C
$(BPFDIR
) OUTPUT
=$(BUILD_DIR
)/libbpf
/ \
176 DESTDIR
=$(SCRATCH_DIR
) prefix= all install_headers
178 $(BUILD_DIR
)/libbpf
$(BUILD_DIR
)/bpftool
$(INCLUDE_DIR
):
179 $(call msg
,MKDIR
,,$@
)
182 $(INCLUDE_DIR
)/vmlinux.h
: $(VMLINUX_BTF
) |
$(BPFTOOL
) $(INCLUDE_DIR
)
184 $(BPFTOOL
) btf dump file
$(VMLINUX_BTF
) format c
> $@
186 # Get Clang's default includes on this system, as opposed to those seen by
187 # '-target bpf'. This fixes "missing" files on some architectures/distros,
188 # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
190 # Use '-idirafter': Don't interfere with include mechanics except where the
191 # build would have failed anyways.
192 define get_sys_includes
193 $(shell $(1) -v
-E
- </dev
/null
2>&1 \
194 | sed
-n
'/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
197 # Determine target endianness.
198 IS_LITTLE_ENDIAN
= $(shell $(CC
) -dM
-E
- </dev
/null | \
199 grep
'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
200 MENDIAN
=$(if
$(IS_LITTLE_ENDIAN
),-mlittle-endian
,-mbig-endian
)
202 CLANG_SYS_INCLUDES
= $(call get_sys_includes
,$(CLANG
))
203 BPF_CFLAGS
= -g
-D__TARGET_ARCH_
$(SRCARCH
) $(MENDIAN
) \
204 -I
$(INCLUDE_DIR
) -I
$(CURDIR
) -I
$(APIDIR
) \
205 -I
$(abspath
$(OUTPUT
)/..
/usr
/include)
207 CLANG_CFLAGS
= $(CLANG_SYS_INCLUDES
) \
208 -Wno-compare-distinct-pointer-types
210 $(OUTPUT
)/test_l4lb_noinline.o
: BPF_CFLAGS
+= -fno-inline
211 $(OUTPUT
)/test_xdp_noinline.o
: BPF_CFLAGS
+= -fno-inline
213 $(OUTPUT
)/flow_dissector_load.o
: flow_dissector_load.h
215 # Build BPF object using Clang
217 # $2 - output .o file
220 define CLANG_BPF_BUILD_RULE
221 $(call msg
,CLNG-LLC
,$(TRUNNER_BINARY
),$2)
222 ($(CLANG
) $3 -O2
-target bpf
-emit-llvm \
223 -c
$1 -o
- || echo
"BPF obj compilation failed") | \
224 $(LLC
) -mattr
=dwarfris
-march
=bpf
-mcpu
=v3
$4 -filetype
=obj
-o
$2
226 # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
227 define CLANG_NOALU32_BPF_BUILD_RULE
228 $(call msg
,CLNG-LLC
,$(TRUNNER_BINARY
),$2)
229 ($(CLANG
) $3 -O2
-target bpf
-emit-llvm \
230 -c
$1 -o
- || echo
"BPF obj compilation failed") | \
231 $(LLC
) -march
=bpf
-mcpu
=v2
$4 -filetype
=obj
-o
$2
233 # Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
234 define CLANG_NATIVE_BPF_BUILD_RULE
235 $(call msg
,CLNG-BPF
,$(TRUNNER_BINARY
),$2)
236 ($(CLANG
) $3 -O2
-emit-llvm \
237 -c
$1 -o
- || echo
"BPF obj compilation failed") | \
238 $(LLC
) -march
=bpf
-mcpu
=v3
$4 -filetype
=obj
-o
$2
240 # Build BPF object using GCC
241 define GCC_BPF_BUILD_RULE
242 $(call msg
,GCC-BPF
,$(TRUNNER_BINARY
),$2)
243 $(BPF_GCC
) $3 $4 -O2
-c
$1 -o
$2
246 SKEL_BLACKLIST
:= btf__
% test_pinning_invalid.c
248 # Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
249 # $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
251 # $1 - test runner base binary name (e.g., test_progs)
252 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
253 define DEFINE_TEST_RUNNER
255 TRUNNER_OUTPUT
:= $(OUTPUT
)$(if
$2,/)$2
256 TRUNNER_BINARY
:= $1$(if
$2,-)$2
257 TRUNNER_TEST_OBJS
:= $$(patsubst %.c
,$$(TRUNNER_OUTPUT
)/%.
test.o
, \
258 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR
)/*.c
)))
259 TRUNNER_EXTRA_OBJS
:= $$(patsubst %.c
,$$(TRUNNER_OUTPUT
)/%.o
, \
260 $$(filter %.c
,$(TRUNNER_EXTRA_SOURCES
)))
261 TRUNNER_EXTRA_HDRS
:= $$(filter %.h
,$(TRUNNER_EXTRA_SOURCES
))
262 TRUNNER_TESTS_HDR
:= $(TRUNNER_TESTS_DIR
)/tests.h
263 TRUNNER_BPF_SRCS
:= $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR
)/*.c
))
264 TRUNNER_BPF_OBJS
:= $$(patsubst %.c
,$$(TRUNNER_OUTPUT
)/%.o
, $$(TRUNNER_BPF_SRCS
))
265 TRUNNER_BPF_SKELS
:= $$(patsubst %.c
,$$(TRUNNER_OUTPUT
)/%.skel.h
, \
266 $$(filter-out $(SKEL_BLACKLIST
), \
267 $$(TRUNNER_BPF_SRCS
)))
269 # Evaluate rules now with extra TRUNNER_XXX variables above already defined
270 $$(eval
$$(call DEFINE_TEST_RUNNER_RULES
,$1,$2))
274 # Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
275 # set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
276 # $1 - test runner base binary name (e.g., test_progs)
277 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
278 define DEFINE_TEST_RUNNER_RULES
280 ifeq ($($(TRUNNER_OUTPUT
)-dir),)
281 $(TRUNNER_OUTPUT
)-dir := y
283 $$(call msg
,MKDIR
,,$$@
)
287 # ensure we set up BPF objects generation rule just once for a given
288 # input/output directory combination
289 ifeq ($($(TRUNNER_BPF_PROGS_DIR
)$(if
$2,-)$2-bpfobjs
),)
290 $(TRUNNER_BPF_PROGS_DIR
)$(if
$2,-)$2-bpfobjs
:= y
291 $(TRUNNER_BPF_OBJS
): $(TRUNNER_OUTPUT
)/%.o
: \
292 $(TRUNNER_BPF_PROGS_DIR
)/%.c \
293 $(TRUNNER_BPF_PROGS_DIR
)/*.h \
294 $$(INCLUDE_DIR
)/vmlinux.h \
295 $$(BPFOBJ
) |
$(TRUNNER_OUTPUT
)
296 $$(call
$(TRUNNER_BPF_BUILD_RULE
),$$<,$$@
, \
297 $(TRUNNER_BPF_CFLAGS
), \
298 $(TRUNNER_BPF_LDFLAGS
))
300 $(TRUNNER_BPF_SKELS
): $(TRUNNER_OUTPUT
)/%.skel.h
: \
301 $(TRUNNER_OUTPUT
)/%.o \
302 |
$(BPFTOOL
) $(TRUNNER_OUTPUT
)
303 $$(call msg
,GEN-SKEL
,$(TRUNNER_BINARY
),$$@
)
304 $$(BPFTOOL
) gen skeleton
$$< > $$@
307 # ensure we set up tests.h header generation rule just once
308 ifeq ($($(TRUNNER_TESTS_DIR
)-tests-hdr
),)
309 $(TRUNNER_TESTS_DIR
)-tests-hdr
:= y
310 $(TRUNNER_TESTS_HDR
): $(TRUNNER_TESTS_DIR
)/*.c
311 $$(call msg
,TEST-HDR
,$(TRUNNER_BINARY
),$$@
)
312 $$(shell ( cd
$(TRUNNER_TESTS_DIR
); \
313 echo
'/* Generated header, do not edit */'; \
314 ls
*.c
2> /dev
/null | \
315 sed
-e
's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \
319 # compile individual test files
320 # Note: we cd into output directory to ensure embedded BPF object is found
321 $(TRUNNER_TEST_OBJS
): $(TRUNNER_OUTPUT
)/%.
test.o
: \
322 $(TRUNNER_TESTS_DIR
)/%.c \
323 $(TRUNNER_EXTRA_HDRS
) \
324 $(TRUNNER_BPF_OBJS
) \
325 $(TRUNNER_BPF_SKELS
) \
326 $$(BPFOBJ
) |
$(TRUNNER_OUTPUT
)
327 $$(call msg
,TEST-OBJ
,$(TRUNNER_BINARY
),$$@
)
328 cd
$$(@D
) && $$(CC
) -I.
$$(CFLAGS
) -c
$(CURDIR
)/$$< $$(LDLIBS
) -o
$$(@F
)
330 $(TRUNNER_EXTRA_OBJS
): $(TRUNNER_OUTPUT
)/%.o
: \
332 $(TRUNNER_EXTRA_HDRS
) \
333 $(TRUNNER_TESTS_HDR
) \
334 $$(BPFOBJ
) |
$(TRUNNER_OUTPUT
)
335 $$(call msg
,EXT-OBJ
,$(TRUNNER_BINARY
),$$@
)
336 $$(CC
) $$(CFLAGS
) -c
$$< $$(LDLIBS
) -o
$$@
338 # only copy extra resources if in flavored build
339 $(TRUNNER_BINARY
)-extras
: $(TRUNNER_EXTRA_FILES
) |
$(TRUNNER_OUTPUT
)
341 $$(call msg
,EXT-COPY
,$(TRUNNER_BINARY
),$(TRUNNER_EXTRA_FILES
))
342 cp
-a
$$^
$(TRUNNER_OUTPUT
)/
345 $(OUTPUT
)/$(TRUNNER_BINARY
): $(TRUNNER_TEST_OBJS
) \
346 $(TRUNNER_EXTRA_OBJS
) $$(BPFOBJ
) \
347 |
$(TRUNNER_BINARY
)-extras
348 $$(call msg
,BINARY
,,$$@
)
349 $$(CC
) $$(CFLAGS
) $$(filter %.a
%.o
,$$^
) $$(LDLIBS
) -o
$$@
353 # Define test_progs test runner.
354 TRUNNER_TESTS_DIR
:= prog_tests
355 TRUNNER_BPF_PROGS_DIR
:= progs
356 TRUNNER_EXTRA_SOURCES
:= test_progs.c cgroup_helpers.c trace_helpers.c \
357 flow_dissector_load.h
358 TRUNNER_EXTRA_FILES
:= $(OUTPUT
)/urandom_read \
359 $(wildcard progs
/btf_dump_test_case_
*.c
)
360 TRUNNER_BPF_BUILD_RULE
:= CLANG_BPF_BUILD_RULE
361 TRUNNER_BPF_CFLAGS
:= $(BPF_CFLAGS
) $(CLANG_CFLAGS
)
362 TRUNNER_BPF_LDFLAGS
:= -mattr
=+alu32
363 $(eval
$(call DEFINE_TEST_RUNNER
,test_progs
))
365 # Define test_progs-no_alu32 test runner.
366 TRUNNER_BPF_BUILD_RULE
:= CLANG_NOALU32_BPF_BUILD_RULE
367 TRUNNER_BPF_LDFLAGS
:=
368 $(eval
$(call DEFINE_TEST_RUNNER
,test_progs
,no_alu32
))
370 # Define test_progs BPF-GCC-flavored test runner.
372 TRUNNER_BPF_BUILD_RULE
:= GCC_BPF_BUILD_RULE
373 TRUNNER_BPF_CFLAGS
:= $(BPF_CFLAGS
) $(call get_sys_includes
,gcc
)
374 TRUNNER_BPF_LDFLAGS
:=
375 $(eval
$(call DEFINE_TEST_RUNNER
,test_progs
,bpf_gcc
))
378 # Define test_maps test runner.
379 TRUNNER_TESTS_DIR
:= map_tests
380 TRUNNER_BPF_PROGS_DIR
:= progs
381 TRUNNER_EXTRA_SOURCES
:= test_maps.c
382 TRUNNER_EXTRA_FILES
:=
383 TRUNNER_BPF_BUILD_RULE
:= $$(error no BPF objects should be built
)
384 TRUNNER_BPF_CFLAGS
:=
385 TRUNNER_BPF_LDFLAGS
:=
386 $(eval
$(call DEFINE_TEST_RUNNER
,test_maps
))
388 # Define test_verifier test runner.
389 # It is much simpler than test_maps/test_progs and sufficiently different from
390 # them (e.g., test.h is using completely pattern), that it's worth just
391 # explicitly defining all the rules explicitly.
392 verifier
/tests.h
: verifier
/*.c
393 $(shell ( cd verifier
/; \
394 echo
'/* Generated header, do not edit */'; \
395 echo
'#ifdef FILL_ARRAY'; \
396 ls
*.c
2> /dev
/null | sed
-e
's@\(.*\)@#include \"\1\"@'; \
398 ) > verifier
/tests.h
)
399 $(OUTPUT
)/test_verifier
: test_verifier.c verifier
/tests.h
$(BPFOBJ
) |
$(OUTPUT
)
400 $(call msg
,BINARY
,,$@
)
401 $(CC
) $(CFLAGS
) $(filter %.a
%.o
%.c
,$^
) $(LDLIBS
) -o
$@
403 # Make sure we are able to include and link libbpf against c++.
404 $(OUTPUT
)/test_cpp
: test_cpp.
cpp $(OUTPUT
)/test_core_extern.skel.h
$(BPFOBJ
)
406 $(CXX
) $(CFLAGS
) $^
$(LDLIBS
) -o
$@
408 EXTRA_CLEAN
:= $(TEST_CUSTOM_PROGS
) $(SCRATCH_DIR
) \
409 prog_tests
/tests.h map_tests
/tests.h verifier
/tests.h \
411 $(addprefix $(OUTPUT
)/,*.o
*.skel.h no_alu32 bpf_gcc
)