tools/testing/selftests/bpf/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 include ../../../../scripts/Kbuild.include
   3 include ../../../scripts/Makefile.arch
   4
   5 CXX ?= $(CROSS_COMPILE)g++
   6
   7 CURDIR := $(abspath .)
   8 TOOLSDIR := $(abspath ../../..)
   9 LIBDIR := $(TOOLSDIR)/lib
  10 BPFDIR := $(LIBDIR)/bpf
  11 TOOLSINCDIR := $(TOOLSDIR)/include
  12 BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
  13 APIDIR := $(TOOLSINCDIR)/uapi
  14 GENDIR := $(abspath ../../../../include/generated)
  15 GENHDR := $(GENDIR)/autoconf.h
  16
  17 ifneq ($(wildcard $(GENHDR)),)
  18   GENFLAGS := -DHAVE_GENHDR
  19 endif
  20
  21 CLANG           ?= clang
  22 LLC             ?= llc
  23 LLVM_OBJCOPY    ?= llvm-objcopy
  24 BPF_GCC         ?= $(shell command -v bpf-gcc;)
  25 SAN_CFLAGS      ?=
  26 CFLAGS += -g -rdynamic -Wall -O2 $(GENFLAGS) $(SAN_CFLAGS)              \
  27           -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)          \
  28           -I$(TOOLSINCDIR) -I$(APIDIR)                                  \
  29           -Dbpf_prog_load=bpf_prog_test_load                            \
  30           -Dbpf_load_program=bpf_test_load_program
  31 LDLIBS += -lcap -lelf -lz -lrt -lpthread
  32
  33 # Order correspond to 'make run_tests' order
  34 TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
  35         test_verifier_log test_dev_cgroup \
  36         test_sock test_sockmap get_cgroup_id_user test_socket_cookie \
  37         test_cgroup_storage \
  38         test_netcnt test_tcpnotify_user test_sysctl \
  39         test_progs-no_alu32 \
  40         test_current_pid_tgid_new_ns
  41
  42 # Also test bpf-gcc, if present
  43 ifneq ($(BPF_GCC),)
  44 TEST_GEN_PROGS += test_progs-bpf_gcc
  45 endif
  46
  47 TEST_GEN_FILES =
  48 TEST_FILES = test_lwt_ip_encap.o \
  49         test_tc_edt.o \
  50         xsk_prereqs.sh
  51
  52 # Order correspond to 'make run_tests' order
  53 TEST_PROGS := test_kmod.sh \
  54         test_xdp_redirect.sh \
  55         test_xdp_meta.sh \
  56         test_xdp_veth.sh \
  57         test_offload.py \
  58         test_sock_addr.sh \
  59         test_tunnel.sh \
  60         test_lwt_seg6local.sh \
  61         test_lirc_mode2.sh \
  62         test_skb_cgroup_id.sh \
  63         test_flow_dissector.sh \
  64         test_xdp_vlan_mode_generic.sh \
  65         test_xdp_vlan_mode_native.sh \
  66         test_lwt_ip_encap.sh \
  67         test_tcp_check_syncookie.sh \
  68         test_tc_tunnel.sh \
  69         test_tc_edt.sh \
  70         test_xdping.sh \
  71         test_bpftool_build.sh \
  72         test_bpftool.sh \
  73         test_bpftool_metadata.sh \
  74         test_xsk.sh
  75
  76 TEST_PROGS_EXTENDED := with_addr.sh \
  77         with_tunnels.sh \
  78         test_xdp_vlan.sh
  79
  80 # Compile but not part of 'make run_tests'
  81 TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
  82         flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
  83         test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
  84         xdpxceiver
  85
  86 TEST_CUSTOM_PROGS = urandom_read
  87
  88 # Emit succinct information message describing current building step
  89 # $1 - generic step name (e.g., CC, LINK, etc);
  90 # $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
  91 # $3 - target (assumed to be file); only file name will be emitted;
  92 # $4 - optional extra arg, emitted as-is, if provided.
  93 ifeq ($(V),1)
  94 Q =
  95 msg =
  96 else
  97 Q = @
  98 msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
  99 MAKEFLAGS += --no-print-directory
 100 submake_extras := feature_display=0
 101 endif
 102
 103 # override lib.mk's default rules
 104 OVERRIDE_TARGETS := 1
 105 override define CLEAN
 106         $(call msg,CLEAN)
 107         $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 108         $(Q)$(MAKE) -C bpf_testmod clean
 109 endef
 110
 111 include ../lib.mk
 112
 113 SCRATCH_DIR := $(OUTPUT)/tools
 114 BUILD_DIR := $(SCRATCH_DIR)/build
 115 INCLUDE_DIR := $(SCRATCH_DIR)/include
 116 BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
 117 RESOLVE_BTFIDS := $(BUILD_DIR)/resolve_btfids/resolve_btfids
 118
 119 # Define simple and short `make test_progs`, `make test_sysctl`, etc targets
 120 # to build individual tests.
 121 # NOTE: Semicolon at the end is critical to override lib.mk's default static
 122 # rule for binaries.
 123 $(notdir $(TEST_GEN_PROGS)                                              \
 124          $(TEST_PROGS)                                                  \
 125          $(TEST_PROGS_EXTENDED)                                         \
 126          $(TEST_GEN_PROGS_EXTENDED)                                     \
 127          $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
 128
 129 $(OUTPUT)/%.o: %.c
 130         $(call msg,CC,,$@)
 131         $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 132
 133 $(OUTPUT)/%:%.c
 134         $(call msg,BINARY,,$@)
 135         $(Q)$(LINK.c) $^ $(LDLIBS) -o $@
 136
 137 $(OUTPUT)/urandom_read: urandom_read.c
 138         $(call msg,BINARY,,$@)
 139         $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1
 140
 141 $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
 142         $(call msg,MOD,,$@)
 143         $(Q)$(MAKE) $(submake_extras) -C bpf_testmod
 144         $(Q)cp bpf_testmod/bpf_testmod.ko $@
 145
 146 $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
 147         $(call msg,CC,,$@)
 148         $(Q)$(CC) -c $(CFLAGS) -o $@ $<
 149
 150 VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)                            \
 151                      $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)    \
 152                      ../../../../vmlinux                                \
 153                      /sys/kernel/btf/vmlinux                            \
 154                      /boot/vmlinux-$(shell uname -r)
 155 VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
 156
 157 DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
 158
 159 $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
 160         $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower     \
 161                     OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF)   \
 162                     BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) &&      \
 163                     cp $(SCRATCH_DIR)/runqslower $@
 164
 165 $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ)
 166
 167 $(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
 168 $(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
 169 $(OUTPUT)/test_sock: cgroup_helpers.c
 170 $(OUTPUT)/test_sock_addr: cgroup_helpers.c
 171 $(OUTPUT)/test_socket_cookie: cgroup_helpers.c
 172 $(OUTPUT)/test_sockmap: cgroup_helpers.c
 173 $(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
 174 $(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
 175 $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
 176 $(OUTPUT)/test_netcnt: cgroup_helpers.c
 177 $(OUTPUT)/test_sock_fields: cgroup_helpers.c
 178 $(OUTPUT)/test_sysctl: cgroup_helpers.c
 179
 180 BPFTOOL ?= $(DEFAULT_BPFTOOL)
 181 $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
 182                     $(BPFOBJ) | $(BUILD_DIR)/bpftool
 183         $(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)                        \
 184                     OUTPUT=$(BUILD_DIR)/bpftool/                               \
 185                     prefix= DESTDIR=$(SCRATCH_DIR)/ install
 186         $(Q)mkdir -p $(BUILD_DIR)/bpftool/Documentation
 187         $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras)           \
 188                     -C $(BPFTOOLDIR)/Documentation                             \
 189                     OUTPUT=$(BUILD_DIR)/bpftool/Documentation/                 \
 190                     prefix= DESTDIR=$(SCRATCH_DIR)/ install
 191
 192 $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)                     \
 193            ../../../include/uapi/linux/bpf.h                                   \
 194            | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
 195         $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
 196                     DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
 197
 198 $(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR):
 199         $(call msg,MKDIR,,$@)
 200         $(Q)mkdir -p $@
 201
 202 $(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
 203 ifeq ($(VMLINUX_H),)
 204         $(call msg,GEN,,$@)
 205         $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
 206 else
 207         $(call msg,CP,,$@)
 208         $(Q)cp "$(VMLINUX_H)" $@
 209 endif
 210
 211 $(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids      \
 212                        $(TOOLSDIR)/bpf/resolve_btfids/main.c    \
 213                        $(TOOLSDIR)/lib/rbtree.c                 \
 214                        $(TOOLSDIR)/lib/zalloc.c                 \
 215                        $(TOOLSDIR)/lib/string.c                 \
 216                        $(TOOLSDIR)/lib/ctype.c                  \
 217                        $(TOOLSDIR)/lib/str_error_r.c
 218         $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
 219                 OUTPUT=$(BUILD_DIR)/resolve_btfids/ BPFOBJ=$(BPFOBJ)
 220
 221 # Get Clang's default includes on this system, as opposed to those seen by
 222 # '-target bpf'. This fixes "missing" files on some architectures/distros,
 223 # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
 224 #
 225 # Use '-idirafter': Don't interfere with include mechanics except where the
 226 # build would have failed anyways.
 227 define get_sys_includes
 228 $(shell $(1) -v -E - </dev/null 2>&1 \
 229         | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
 230 $(shell $(1) -dM -E - </dev/null | grep '#define __riscv_xlen ' | sed 's/#define /-D/' | sed 's/ /=/')
 231 endef
 232
 233 # Determine target endianness.
 234 IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
 235                         grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
 236 MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
 237
 238 CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
 239 BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN)                   \
 240              -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)                   \
 241              -I$(abspath $(OUTPUT)/../usr/include)
 242
 243 CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
 244                -Wno-compare-distinct-pointer-types
 245
 246 $(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
 247 $(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
 248
 249 $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
 250
 251 # Build BPF object using Clang
 252 # $1 - input .c file
 253 # $2 - output .o file
 254 # $3 - CFLAGS
 255 # $4 - LDFLAGS
 256 define CLANG_BPF_BUILD_RULE
 257         $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
 258         $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm                     \
 259                 -c $1 -o - || echo "BPF obj compilation failed") |      \
 260         $(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
 261 endef
 262 # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
 263 define CLANG_NOALU32_BPF_BUILD_RULE
 264         $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
 265         $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm                     \
 266                 -c $1 -o - || echo "BPF obj compilation failed") |      \
 267         $(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
 268 endef
 269 # Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
 270 define CLANG_NATIVE_BPF_BUILD_RULE
 271         $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
 272         $(Q)($(CLANG) $3 -O2 -emit-llvm                                 \
 273                 -c $1 -o - || echo "BPF obj compilation failed") |      \
 274         $(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
 275 endef
 276 # Build BPF object using GCC
 277 define GCC_BPF_BUILD_RULE
 278         $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
 279         $(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
 280 endef
 281
 282 SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
 283
 284 # Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
 285 # $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
 286 # Parameters:
 287 # $1 - test runner base binary name (e.g., test_progs)
 288 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
 289 define DEFINE_TEST_RUNNER
 290
 291 TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
 292 TRUNNER_BINARY := $1$(if $2,-)$2
 293 TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o,       \
 294                                  $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
 295 TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,           \
 296                                  $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
 297 TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
 298 TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
 299 TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
 300 TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS))
 301 TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,       \
 302                                  $$(filter-out $(SKEL_BLACKLIST),       \
 303                                                $$(TRUNNER_BPF_SRCS)))
 304 TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
 305
 306 # Evaluate rules now with extra TRUNNER_XXX variables above already defined
 307 $$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
 308
 309 endef
 310
 311 # Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
 312 # set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
 313 # $1 - test runner base binary name (e.g., test_progs)
 314 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
 315 define DEFINE_TEST_RUNNER_RULES
 316
 317 ifeq ($($(TRUNNER_OUTPUT)-dir),)
 318 $(TRUNNER_OUTPUT)-dir := y
 319 $(TRUNNER_OUTPUT):
 320         $$(call msg,MKDIR,,$$@)
 321         $(Q)mkdir -p $$@
 322 endif
 323
 324 # ensure we set up BPF objects generation rule just once for a given
 325 # input/output directory combination
 326 ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
 327 $(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
 328 $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o:                             \
 329                      $(TRUNNER_BPF_PROGS_DIR)/%.c                       \
 330                      $(TRUNNER_BPF_PROGS_DIR)/*.h                       \
 331                      $$(INCLUDE_DIR)/vmlinux.h                          \
 332                      $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT)
 333         $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,                      \
 334                                           $(TRUNNER_BPF_CFLAGS),        \
 335                                           $(TRUNNER_BPF_LDFLAGS))
 336
 337 $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h:                       \
 338                       $(TRUNNER_OUTPUT)/%.o                             \
 339                       | $(BPFTOOL) $(TRUNNER_OUTPUT)
 340         $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
 341         $(Q)$$(BPFTOOL) gen skeleton $$< > $$@
 342 endif
 343
 344 # ensure we set up tests.h header generation rule just once
 345 ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
 346 $(TRUNNER_TESTS_DIR)-tests-hdr := y
 347 $(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
 348         $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
 349         $$(shell ( cd $(TRUNNER_TESTS_DIR);                             \
 350                   echo '/* Generated header, do not edit */';           \
 351                   ls *.c 2> /dev/null |                                 \
 352                         sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@';      \
 353                  ) > $$@)
 354 endif
 355
 356 # compile individual test files
 357 # Note: we cd into output directory to ensure embedded BPF object is found
 358 $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:                       \
 359                       $(TRUNNER_TESTS_DIR)/%.c                          \
 360                       $(TRUNNER_EXTRA_HDRS)                             \
 361                       $(TRUNNER_BPF_OBJS)                               \
 362                       $(TRUNNER_BPF_SKELS)                              \
 363                       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 364         $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
 365         $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
 366
 367 $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:                           \
 368                        %.c                                              \
 369                        $(TRUNNER_EXTRA_HDRS)                            \
 370                        $(TRUNNER_TESTS_HDR)                             \
 371                        $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 372         $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
 373         $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
 374
 375 # only copy extra resources if in flavored build
 376 $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
 377 ifneq ($2,)
 378         $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
 379         $(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
 380 endif
 381
 382 $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)                       \
 383                              $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)           \
 384                              $(RESOLVE_BTFIDS)                          \
 385                              | $(TRUNNER_BINARY)-extras
 386         $$(call msg,BINARY,,$$@)
 387         $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
 388         $(Q)$(RESOLVE_BTFIDS) --no-fail --btf $(TRUNNER_OUTPUT)/btf_data.o $$@
 389
 390 endef
 391
 392 # Define test_progs test runner.
 393 TRUNNER_TESTS_DIR := prog_tests
 394 TRUNNER_BPF_PROGS_DIR := progs
 395 TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c  \
 396                          network_helpers.c testing_helpers.c            \
 397                          btf_helpers.c  flow_dissector_load.h
 398 TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko  \
 399                        ima_setup.sh                                     \
 400                        $(wildcard progs/btf_dump_test_case_*.c)
 401 TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
 402 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
 403 TRUNNER_BPF_LDFLAGS := -mattr=+alu32
 404 $(eval $(call DEFINE_TEST_RUNNER,test_progs))
 405
 406 # Define test_progs-no_alu32 test runner.
 407 TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
 408 TRUNNER_BPF_LDFLAGS :=
 409 $(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
 410
 411 # Define test_progs BPF-GCC-flavored test runner.
 412 ifneq ($(BPF_GCC),)
 413 TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
 414 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc)
 415 TRUNNER_BPF_LDFLAGS :=
 416 $(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
 417 endif
 418
 419 # Define test_maps test runner.
 420 TRUNNER_TESTS_DIR := map_tests
 421 TRUNNER_BPF_PROGS_DIR := progs
 422 TRUNNER_EXTRA_SOURCES := test_maps.c
 423 TRUNNER_EXTRA_FILES :=
 424 TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
 425 TRUNNER_BPF_CFLAGS :=
 426 TRUNNER_BPF_LDFLAGS :=
 427 $(eval $(call DEFINE_TEST_RUNNER,test_maps))
 428
 429 # Define test_verifier test runner.
 430 # It is much simpler than test_maps/test_progs and sufficiently different from
 431 # them (e.g., test.h is using completely pattern), that it's worth just
 432 # explicitly defining all the rules explicitly.
 433 verifier/tests.h: verifier/*.c
 434         $(shell ( cd verifier/; \
 435                   echo '/* Generated header, do not edit */'; \
 436                   echo '#ifdef FILL_ARRAY'; \
 437                   ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
 438                   echo '#endif' \
 439                 ) > verifier/tests.h)
 440 $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
 441         $(call msg,BINARY,,$@)
 442         $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 443
 444 # Make sure we are able to include and link libbpf against c++.
 445 $(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
 446         $(call msg,CXX,,$@)
 447         $(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
 448
 449 # Benchmark runner
 450 $(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
 451         $(call msg,CC,,$@)
 452         $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 453 $(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
 454 $(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
 455 $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
 456                             $(OUTPUT)/perfbuf_bench.skel.h
 457 $(OUTPUT)/bench.o: bench.h testing_helpers.h
 458 $(OUTPUT)/bench: LDLIBS += -lm
 459 $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
 460                  $(OUTPUT)/bench_count.o \
 461                  $(OUTPUT)/bench_rename.o \
 462                  $(OUTPUT)/bench_trigger.o \
 463                  $(OUTPUT)/bench_ringbufs.o
 464         $(call msg,BINARY,,$@)
 465         $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
 466
 467 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR)                      \
 468         prog_tests/tests.h map_tests/tests.h verifier/tests.h           \
 469         feature                                                         \
 470         $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko)