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$(APIDIR)                                  \
  29           -Dbpf_prog_load=bpf_prog_test_load                            \
  30           -Dbpf_load_program=bpf_test_load_program
  31 LDLIBS += -lcap -lelf -lz -lrt -lpthread
  32
  33 # Order correspond to 'make run_tests' order
  34 TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
  35         test_verifier_log test_dev_cgroup test_tcpbpf_user \
  36         test_sock test_sockmap get_cgroup_id_user test_socket_cookie \
  37         test_cgroup_storage \
  38         test_netcnt test_tcpnotify_user test_sysctl \
  39         test_progs-no_alu32 \
  40         test_current_pid_tgid_new_ns
  41
  42 # Also test bpf-gcc, if present
  43 ifneq ($(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
  51 # Order correspond to 'make run_tests' order
  52 TEST_PROGS := test_kmod.sh \
  53         test_xdp_redirect.sh \
  54         test_xdp_meta.sh \
  55         test_xdp_veth.sh \
  56         test_offload.py \
  57         test_sock_addr.sh \
  58         test_tunnel.sh \
  59         test_lwt_seg6local.sh \
  60         test_lirc_mode2.sh \
  61         test_skb_cgroup_id.sh \
  62         test_flow_dissector.sh \
  63         test_xdp_vlan_mode_generic.sh \
  64         test_xdp_vlan_mode_native.sh \
  65         test_lwt_ip_encap.sh \
  66         test_tcp_check_syncookie.sh \
  67         test_tc_tunnel.sh \
  68         test_tc_edt.sh \
  69         test_xdping.sh \
  70         test_bpftool_build.sh \
  71         test_bpftool.sh \
  72         test_bpftool_metadata.sh \
  73
  74 TEST_PROGS_EXTENDED := with_addr.sh \
  75         with_tunnels.sh \
  76         tcp_client.py \
  77         tcp_server.py \
  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
  84
  85 TEST_CUSTOM_PROGS = urandom_read
  86
  87 # Emit succinct information message describing current building step
  88 # $1 - generic step name (e.g., CC, LINK, etc);
  89 # $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
  90 # $3 - target (assumed to be file); only file name will be emitted;
  91 # $4 - optional extra arg, emitted as-is, if provided.
  92 ifeq ($(V),1)
  93 Q =
  94 msg =
  95 else
  96 Q = @
  97 msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
  98 MAKEFLAGS += --no-print-directory
  99 submake_extras := feature_display=0
 100 endif
 101
 102 # override lib.mk's default rules
 103 OVERRIDE_TARGETS := 1
 104 override define CLEAN
 105         $(call msg,CLEAN)
 106         $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 107 endef
 108
 109 include ../lib.mk
 110
 111 SCRATCH_DIR := $(OUTPUT)/tools
 112 BUILD_DIR := $(SCRATCH_DIR)/build
 113 INCLUDE_DIR := $(SCRATCH_DIR)/include
 114 BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
 115 RESOLVE_BTFIDS := $(BUILD_DIR)/resolve_btfids/resolve_btfids
 116
 117 # Define simple and short `make test_progs`, `make test_sysctl`, etc targets
 118 # to build individual tests.
 119 # NOTE: Semicolon at the end is critical to override lib.mk's default static
 120 # rule for binaries.
 121 $(notdir $(TEST_GEN_PROGS)                                              \
 122          $(TEST_PROGS)                                                  \
 123          $(TEST_PROGS_EXTENDED)                                         \
 124          $(TEST_GEN_PROGS_EXTENDED)                                     \
 125          $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
 126
 127 $(OUTPUT)/%.o: %.c
 128         $(call msg,CC,,$@)
 129         $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 130
 131 $(OUTPUT)/%:%.c
 132         $(call msg,BINARY,,$@)
 133         $(Q)$(LINK.c) $^ $(LDLIBS) -o $@
 134
 135 $(OUTPUT)/urandom_read: urandom_read.c
 136         $(call msg,BINARY,,$@)
 137         $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1
 138
 139 $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
 140         $(call msg,CC,,$@)
 141         $(Q)$(CC) -c $(CFLAGS) -o $@ $<
 142
 143 VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)                            \
 144                      $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)    \
 145                      ../../../../vmlinux                                \
 146                      /sys/kernel/btf/vmlinux                            \
 147                      /boot/vmlinux-$(shell uname -r)
 148 VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
 149
 150 DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
 151
 152 $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
 153         $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower     \
 154                     OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF)   \
 155                     BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) &&      \
 156                     cp $(SCRATCH_DIR)/runqslower $@
 157
 158 $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ)
 159
 160 $(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
 161 $(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
 162 $(OUTPUT)/test_sock: cgroup_helpers.c
 163 $(OUTPUT)/test_sock_addr: cgroup_helpers.c
 164 $(OUTPUT)/test_socket_cookie: cgroup_helpers.c
 165 $(OUTPUT)/test_sockmap: cgroup_helpers.c
 166 $(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c
 167 $(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
 168 $(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
 169 $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
 170 $(OUTPUT)/test_netcnt: cgroup_helpers.c
 171 $(OUTPUT)/test_sock_fields: cgroup_helpers.c
 172 $(OUTPUT)/test_sysctl: cgroup_helpers.c
 173
 174 BPFTOOL ?= $(DEFAULT_BPFTOOL)
 175 $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
 176                     $(BPFOBJ) | $(BUILD_DIR)/bpftool
 177         $(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)                        \
 178                     OUTPUT=$(BUILD_DIR)/bpftool/                               \
 179                     prefix= DESTDIR=$(SCRATCH_DIR)/ install
 180         $(Q)mkdir -p $(BUILD_DIR)/bpftool/Documentation
 181         $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras)           \
 182                     -C $(BPFTOOLDIR)/Documentation                             \
 183                     OUTPUT=$(BUILD_DIR)/bpftool/Documentation/                 \
 184                     prefix= DESTDIR=$(SCRATCH_DIR)/ install
 185
 186 $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)                     \
 187            ../../../include/uapi/linux/bpf.h                                   \
 188            | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
 189         $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
 190                     DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
 191
 192 $(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR):
 193         $(call msg,MKDIR,,$@)
 194         $(Q)mkdir -p $@
 195
 196 $(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
 197 ifeq ($(VMLINUX_H),)
 198         $(call msg,GEN,,$@)
 199         $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
 200 else
 201         $(call msg,CP,,$@)
 202         $(Q)cp "$(VMLINUX_H)" $@
 203 endif
 204
 205 $(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids      \
 206                        $(TOOLSDIR)/bpf/resolve_btfids/main.c    \
 207                        $(TOOLSDIR)/lib/rbtree.c                 \
 208                        $(TOOLSDIR)/lib/zalloc.c                 \
 209                        $(TOOLSDIR)/lib/string.c                 \
 210                        $(TOOLSDIR)/lib/ctype.c                  \
 211                        $(TOOLSDIR)/lib/str_error_r.c
 212         $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
 213                 OUTPUT=$(BUILD_DIR)/resolve_btfids/ BPFOBJ=$(BPFOBJ)
 214
 215 # Get Clang's default includes on this system, as opposed to those seen by
 216 # '-target bpf'. This fixes "missing" files on some architectures/distros,
 217 # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
 218 #
 219 # Use '-idirafter': Don't interfere with include mechanics except where the
 220 # build would have failed anyways.
 221 define get_sys_includes
 222 $(shell $(1) -v -E - </dev/null 2>&1 \
 223         | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
 224 endef
 225
 226 # Determine target endianness.
 227 IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
 228                         grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
 229 MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
 230
 231 CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
 232 BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN)                   \
 233              -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)                   \
 234              -I$(abspath $(OUTPUT)/../usr/include)
 235
 236 CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
 237                -Wno-compare-distinct-pointer-types
 238
 239 $(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
 240 $(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
 241
 242 $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
 243
 244 # Build BPF object using Clang
 245 # $1 - input .c file
 246 # $2 - output .o file
 247 # $3 - CFLAGS
 248 # $4 - LDFLAGS
 249 define CLANG_BPF_BUILD_RULE
 250         $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
 251         $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm                     \
 252                 -c $1 -o - || echo "BPF obj compilation failed") |      \
 253         $(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
 254 endef
 255 # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
 256 define CLANG_NOALU32_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) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
 261 endef
 262 # Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
 263 define CLANG_NATIVE_BPF_BUILD_RULE
 264         $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
 265         $(Q)($(CLANG) $3 -O2 -emit-llvm                                 \
 266                 -c $1 -o - || echo "BPF obj compilation failed") |      \
 267         $(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
 268 endef
 269 # Build BPF object using GCC
 270 define GCC_BPF_BUILD_RULE
 271         $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
 272         $(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
 273 endef
 274
 275 SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
 276
 277 # Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
 278 # $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
 279 # Parameters:
 280 # $1 - test runner base binary name (e.g., test_progs)
 281 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
 282 define DEFINE_TEST_RUNNER
 283
 284 TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
 285 TRUNNER_BINARY := $1$(if $2,-)$2
 286 TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o,       \
 287                                  $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
 288 TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,           \
 289                                  $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
 290 TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
 291 TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
 292 TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
 293 TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS))
 294 TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,       \
 295                                  $$(filter-out $(SKEL_BLACKLIST),       \
 296                                                $$(TRUNNER_BPF_SRCS)))
 297 TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
 298
 299 # Evaluate rules now with extra TRUNNER_XXX variables above already defined
 300 $$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
 301
 302 endef
 303
 304 # Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
 305 # set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
 306 # $1 - test runner base binary name (e.g., test_progs)
 307 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
 308 define DEFINE_TEST_RUNNER_RULES
 309
 310 ifeq ($($(TRUNNER_OUTPUT)-dir),)
 311 $(TRUNNER_OUTPUT)-dir := y
 312 $(TRUNNER_OUTPUT):
 313         $$(call msg,MKDIR,,$$@)
 314         $(Q)mkdir -p $$@
 315 endif
 316
 317 # ensure we set up BPF objects generation rule just once for a given
 318 # input/output directory combination
 319 ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
 320 $(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
 321 $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o:                             \
 322                      $(TRUNNER_BPF_PROGS_DIR)/%.c                       \
 323                      $(TRUNNER_BPF_PROGS_DIR)/*.h                       \
 324                      $$(INCLUDE_DIR)/vmlinux.h                          \
 325                      $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT)
 326         $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,                      \
 327                                           $(TRUNNER_BPF_CFLAGS),        \
 328                                           $(TRUNNER_BPF_LDFLAGS))
 329
 330 $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h:                       \
 331                       $(TRUNNER_OUTPUT)/%.o                             \
 332                       | $(BPFTOOL) $(TRUNNER_OUTPUT)
 333         $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
 334         $(Q)$$(BPFTOOL) gen skeleton $$< > $$@
 335 endif
 336
 337 # ensure we set up tests.h header generation rule just once
 338 ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
 339 $(TRUNNER_TESTS_DIR)-tests-hdr := y
 340 $(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
 341         $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
 342         $$(shell ( cd $(TRUNNER_TESTS_DIR);                             \
 343                   echo '/* Generated header, do not edit */';           \
 344                   ls *.c 2> /dev/null |                                 \
 345                         sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@';      \
 346                  ) > $$@)
 347 endif
 348
 349 # compile individual test files
 350 # Note: we cd into output directory to ensure embedded BPF object is found
 351 $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:                       \
 352                       $(TRUNNER_TESTS_DIR)/%.c                          \
 353                       $(TRUNNER_EXTRA_HDRS)                             \
 354                       $(TRUNNER_BPF_OBJS)                               \
 355                       $(TRUNNER_BPF_SKELS)                              \
 356                       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 357         $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
 358         $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
 359
 360 $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:                           \
 361                        %.c                                              \
 362                        $(TRUNNER_EXTRA_HDRS)                            \
 363                        $(TRUNNER_TESTS_HDR)                             \
 364                        $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 365         $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
 366         $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
 367
 368 # only copy extra resources if in flavored build
 369 $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
 370 ifneq ($2,)
 371         $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
 372         $(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
 373 endif
 374
 375 $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)                       \
 376                              $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)           \
 377                              $(RESOLVE_BTFIDS)                          \
 378                              | $(TRUNNER_BINARY)-extras
 379         $$(call msg,BINARY,,$$@)
 380         $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
 381         $(Q)$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@
 382
 383 endef
 384
 385 # Define test_progs test runner.
 386 TRUNNER_TESTS_DIR := prog_tests
 387 TRUNNER_BPF_PROGS_DIR := progs
 388 TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c  \
 389                          network_helpers.c testing_helpers.c            \
 390                          flow_dissector_load.h
 391 TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read                           \
 392                        $(wildcard progs/btf_dump_test_case_*.c)
 393 TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
 394 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
 395 TRUNNER_BPF_LDFLAGS := -mattr=+alu32
 396 $(eval $(call DEFINE_TEST_RUNNER,test_progs))
 397
 398 # Define test_progs-no_alu32 test runner.
 399 TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
 400 TRUNNER_BPF_LDFLAGS :=
 401 $(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
 402
 403 # Define test_progs BPF-GCC-flavored test runner.
 404 ifneq ($(BPF_GCC),)
 405 TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
 406 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc)
 407 TRUNNER_BPF_LDFLAGS :=
 408 $(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
 409 endif
 410
 411 # Define test_maps test runner.
 412 TRUNNER_TESTS_DIR := map_tests
 413 TRUNNER_BPF_PROGS_DIR := progs
 414 TRUNNER_EXTRA_SOURCES := test_maps.c
 415 TRUNNER_EXTRA_FILES :=
 416 TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
 417 TRUNNER_BPF_CFLAGS :=
 418 TRUNNER_BPF_LDFLAGS :=
 419 $(eval $(call DEFINE_TEST_RUNNER,test_maps))
 420
 421 # Define test_verifier test runner.
 422 # It is much simpler than test_maps/test_progs and sufficiently different from
 423 # them (e.g., test.h is using completely pattern), that it's worth just
 424 # explicitly defining all the rules explicitly.
 425 verifier/tests.h: verifier/*.c
 426         $(shell ( cd verifier/; \
 427                   echo '/* Generated header, do not edit */'; \
 428                   echo '#ifdef FILL_ARRAY'; \
 429                   ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
 430                   echo '#endif' \
 431                 ) > verifier/tests.h)
 432 $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
 433         $(call msg,BINARY,,$@)
 434         $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 435
 436 # Make sure we are able to include and link libbpf against c++.
 437 $(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
 438         $(call msg,CXX,,$@)
 439         $(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
 440
 441 # Benchmark runner
 442 $(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
 443         $(call msg,CC,,$@)
 444         $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 445 $(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
 446 $(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
 447 $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
 448                             $(OUTPUT)/perfbuf_bench.skel.h
 449 $(OUTPUT)/bench.o: bench.h testing_helpers.h
 450 $(OUTPUT)/bench: LDLIBS += -lm
 451 $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
 452                  $(OUTPUT)/bench_count.o \
 453                  $(OUTPUT)/bench_rename.o \
 454                  $(OUTPUT)/bench_trigger.o \
 455                  $(OUTPUT)/bench_ringbufs.o
 456         $(call msg,BINARY,,$@)
 457         $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
 458
 459 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR)                      \
 460         prog_tests/tests.h map_tests/tests.h verifier/tests.h           \
 461         feature                                                         \
 462         $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc)