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