tools/testing/selftests/bpf/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 include ../../../../scripts/Kbuild.include
   3 include ../../../scripts/Makefile.arch
   4 include ../../../scripts/Makefile.include
   5
   6 CXX ?= $(CROSS_COMPILE)g++
   7
   8 CURDIR := $(abspath .)
   9 TOOLSDIR := $(abspath ../../..)
  10 LIBDIR := $(TOOLSDIR)/lib
  11 BPFDIR := $(LIBDIR)/bpf
  12 TOOLSINCDIR := $(TOOLSDIR)/include
  13 BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
  14 APIDIR := $(TOOLSINCDIR)/uapi
  15 GENDIR := $(abspath ../../../../include/generated)
  16 GENHDR := $(GENDIR)/autoconf.h
  17
  18 ifneq ($(wildcard $(GENHDR)),)
  19   GENFLAGS := -DHAVE_GENHDR
  20 endif
  21
  22 BPF_GCC         ?= $(shell command -v bpf-gcc;)
  23 SAN_CFLAGS      ?=
  24 CFLAGS += -g -rdynamic -Wall -O2 $(GENFLAGS) $(SAN_CFLAGS)              \
  25           -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)          \
  26           -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT)                      \
  27           -Dbpf_prog_load=bpf_prog_test_load                            \
  28           -Dbpf_load_program=bpf_test_load_program
  29 LDLIBS += -lcap -lelf -lz -lrt -lpthread
  30
  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_verifier_log test_dev_cgroup \
  34         test_sock test_sockmap get_cgroup_id_user \
  35         test_cgroup_storage \
  36         test_netcnt test_tcpnotify_user test_sysctl \
  37         test_progs-no_alu32
  38
  39 # Also test bpf-gcc, if present
  40 ifneq ($(BPF_GCC),)
  41 TEST_GEN_PROGS += test_progs-bpf_gcc
  42 endif
  43
  44 TEST_GEN_FILES = test_lwt_ip_encap.o \
  45         test_tc_edt.o
  46 TEST_FILES = xsk_prereqs.sh \
  47         $(wildcard progs/btf_dump_test_case_*.c)
  48
  49 # Order correspond to 'make run_tests' order
  50 TEST_PROGS := test_kmod.sh \
  51         test_xdp_redirect.sh \
  52         test_xdp_meta.sh \
  53         test_xdp_veth.sh \
  54         test_offload.py \
  55         test_sock_addr.sh \
  56         test_tunnel.sh \
  57         test_lwt_seg6local.sh \
  58         test_lirc_mode2.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 \
  65         test_tc_tunnel.sh \
  66         test_tc_edt.sh \
  67         test_xdping.sh \
  68         test_bpftool_build.sh \
  69         test_bpftool.sh \
  70         test_bpftool_metadata.sh \
  71         test_xsk.sh
  72
  73 TEST_PROGS_EXTENDED := with_addr.sh \
  74         with_tunnels.sh \
  75         test_xdp_vlan.sh
  76
  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 bench bpf_testmod.ko \
  81         xdpxceiver
  82
  83 TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
  84
  85 # Emit succinct information message describing current building step
  86 # $1 - generic step name (e.g., CC, LINK, etc);
  87 # $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
  88 # $3 - target (assumed to be file); only file name will be emitted;
  89 # $4 - optional extra arg, emitted as-is, if provided.
  90 ifeq ($(V),1)
  91 Q =
  92 msg =
  93 else
  94 Q = @
  95 msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
  96 MAKEFLAGS += --no-print-directory
  97 submake_extras := feature_display=0
  98 endif
  99
 100 # override lib.mk's default rules
 101 OVERRIDE_TARGETS := 1
 102 override define CLEAN
 103         $(call msg,CLEAN)
 104         $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 105         $(Q)$(MAKE) -C bpf_testmod clean
 106 endef
 107
 108 include ../lib.mk
 109
 110 SCRATCH_DIR := $(OUTPUT)/tools
 111 BUILD_DIR := $(SCRATCH_DIR)/build
 112 INCLUDE_DIR := $(SCRATCH_DIR)/include
 113 BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
 114 ifneq ($(CROSS_COMPILE),)
 115 HOST_BUILD_DIR          := $(BUILD_DIR)/host
 116 HOST_SCRATCH_DIR        := $(OUTPUT)/host-tools
 117 else
 118 HOST_BUILD_DIR          := $(BUILD_DIR)
 119 HOST_SCRATCH_DIR        := $(SCRATCH_DIR)
 120 endif
 121 HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
 122 RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
 123
 124 VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)                            \
 125                      $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)    \
 126                      ../../../../vmlinux                                \
 127                      /sys/kernel/btf/vmlinux                            \
 128                      /boot/vmlinux-$(shell uname -r)
 129 VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
 130 ifeq ($(VMLINUX_BTF),)
 131 $(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
 132 endif
 133
 134 # Define simple and short `make test_progs`, `make test_sysctl`, etc targets
 135 # to build individual tests.
 136 # NOTE: Semicolon at the end is critical to override lib.mk's default static
 137 # rule for binaries.
 138 $(notdir $(TEST_GEN_PROGS)                                              \
 139          $(TEST_PROGS)                                                  \
 140          $(TEST_PROGS_EXTENDED)                                         \
 141          $(TEST_GEN_PROGS_EXTENDED)                                     \
 142          $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
 143
 144 # sort removes libbpf duplicates when not cross-building
 145 MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf               \
 146                $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids      \
 147                $(INCLUDE_DIR))
 148 $(MAKE_DIRS):
 149         $(call msg,MKDIR,,$@)
 150         $(Q)mkdir -p $@
 151
 152 $(OUTPUT)/%.o: %.c
 153         $(call msg,CC,,$@)
 154         $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 155
 156 $(OUTPUT)/%:%.c
 157         $(call msg,BINARY,,$@)
 158         $(Q)$(LINK.c) $^ $(LDLIBS) -o $@
 159
 160 $(OUTPUT)/urandom_read: urandom_read.c
 161         $(call msg,BINARY,,$@)
 162         $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1
 163
 164 $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
 165         $(call msg,MOD,,$@)
 166         $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation
 167         $(Q)$(MAKE) $(submake_extras) -C bpf_testmod
 168         $(Q)cp bpf_testmod/bpf_testmod.ko $@
 169
 170 $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
 171         $(call msg,CC,,$@)
 172         $(Q)$(CC) -c $(CFLAGS) -o $@ $<
 173
 174 DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
 175
 176 $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
 177         $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower     \
 178                     OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF)   \
 179                     BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) &&      \
 180                     cp $(SCRATCH_DIR)/runqslower $@
 181
 182 $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ)
 183
 184 $(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
 185 $(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
 186 $(OUTPUT)/test_sock: cgroup_helpers.c
 187 $(OUTPUT)/test_sock_addr: cgroup_helpers.c
 188 $(OUTPUT)/test_sockmap: cgroup_helpers.c
 189 $(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
 190 $(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
 191 $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
 192 $(OUTPUT)/test_netcnt: cgroup_helpers.c
 193 $(OUTPUT)/test_sock_fields: cgroup_helpers.c
 194 $(OUTPUT)/test_sysctl: cgroup_helpers.c
 195
 196 BPFTOOL ?= $(DEFAULT_BPFTOOL)
 197 $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
 198                     $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
 199         $(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)                        \
 200                     CC=$(HOSTCC) LD=$(HOSTLD)                                  \
 201                     OUTPUT=$(HOST_BUILD_DIR)/bpftool/                          \
 202                     prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install
 203         $(Q)mkdir -p $(BUILD_DIR)/bpftool/Documentation
 204         $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras)           \
 205                     -C $(BPFTOOLDIR)/Documentation                             \
 206                     OUTPUT=$(BUILD_DIR)/bpftool/Documentation/                 \
 207                     prefix= DESTDIR=$(SCRATCH_DIR)/ install
 208
 209 $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)                     \
 210            ../../../include/uapi/linux/bpf.h                                   \
 211            | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
 212         $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
 213                     DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
 214
 215 ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
 216 $(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)                \
 217            ../../../include/uapi/linux/bpf.h                                   \
 218            | $(INCLUDE_DIR) $(HOST_BUILD_DIR)/libbpf
 219         $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR)                             \
 220                 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD)     \
 221                     DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
 222 endif
 223
 224 $(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
 225 ifeq ($(VMLINUX_H),)
 226         $(call msg,GEN,,$@)
 227         $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
 228 else
 229         $(call msg,CP,,$@)
 230         $(Q)cp "$(VMLINUX_H)" $@
 231 endif
 232
 233 $(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids    \
 234                        $(TOOLSDIR)/bpf/resolve_btfids/main.c    \
 235                        $(TOOLSDIR)/lib/rbtree.c                 \
 236                        $(TOOLSDIR)/lib/zalloc.c                 \
 237                        $(TOOLSDIR)/lib/string.c                 \
 238                        $(TOOLSDIR)/lib/ctype.c                  \
 239                        $(TOOLSDIR)/lib/str_error_r.c
 240         $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
 241                 CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \
 242                 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
 243
 244 # Get Clang's default includes on this system, as opposed to those seen by
 245 # '-target bpf'. This fixes "missing" files on some architectures/distros,
 246 # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
 247 #
 248 # Use '-idirafter': Don't interfere with include mechanics except where the
 249 # build would have failed anyways.
 250 define get_sys_includes
 251 $(shell $(1) -v -E - </dev/null 2>&1 \
 252         | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
 253 $(shell $(1) -dM -E - </dev/null | grep '#define __riscv_xlen ' | sed 's/#define /-D/' | sed 's/ /=/')
 254 endef
 255
 256 # Determine target endianness.
 257 IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
 258                         grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
 259 MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
 260
 261 CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
 262 BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN)                   \
 263              -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)                   \
 264              -I$(abspath $(OUTPUT)/../usr/include)
 265
 266 CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
 267                -Wno-compare-distinct-pointer-types
 268
 269 $(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
 270 $(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
 271
 272 $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
 273
 274 # Build BPF object using Clang
 275 # $1 - input .c file
 276 # $2 - output .o file
 277 # $3 - CFLAGS
 278 define CLANG_BPF_BUILD_RULE
 279         $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
 280         $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v3
 281 endef
 282 # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
 283 define CLANG_NOALU32_BPF_BUILD_RULE
 284         $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
 285         $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v2
 286 endef
 287 # Build BPF object using GCC
 288 define GCC_BPF_BUILD_RULE
 289         $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
 290         $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2
 291 endef
 292
 293 SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
 294
 295 # Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
 296 # $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
 297 # Parameters:
 298 # $1 - test runner base binary name (e.g., test_progs)
 299 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
 300 define DEFINE_TEST_RUNNER
 301
 302 TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
 303 TRUNNER_BINARY := $1$(if $2,-)$2
 304 TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o,       \
 305                                  $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
 306 TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,           \
 307                                  $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
 308 TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
 309 TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
 310 TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
 311 TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS))
 312 TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,       \
 313                                  $$(filter-out $(SKEL_BLACKLIST),       \
 314                                                $$(TRUNNER_BPF_SRCS)))
 315 TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
 316
 317 # Evaluate rules now with extra TRUNNER_XXX variables above already defined
 318 $$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
 319
 320 endef
 321
 322 # Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
 323 # set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
 324 # $1 - test runner base binary name (e.g., test_progs)
 325 # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
 326 define DEFINE_TEST_RUNNER_RULES
 327
 328 ifeq ($($(TRUNNER_OUTPUT)-dir),)
 329 $(TRUNNER_OUTPUT)-dir := y
 330 $(TRUNNER_OUTPUT):
 331         $$(call msg,MKDIR,,$$@)
 332         $(Q)mkdir -p $$@
 333 endif
 334
 335 # ensure we set up BPF objects generation rule just once for a given
 336 # input/output directory combination
 337 ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
 338 $(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
 339 $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o:                             \
 340                      $(TRUNNER_BPF_PROGS_DIR)/%.c                       \
 341                      $(TRUNNER_BPF_PROGS_DIR)/*.h                       \
 342                      $$(INCLUDE_DIR)/vmlinux.h                          \
 343                      $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT)
 344         $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,                      \
 345                                           $(TRUNNER_BPF_CFLAGS))
 346
 347 $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h:                       \
 348                       $(TRUNNER_OUTPUT)/%.o                             \
 349                       | $(BPFTOOL) $(TRUNNER_OUTPUT)
 350         $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
 351         $(Q)$$(BPFTOOL) gen skeleton $$< > $$@
 352 endif
 353
 354 # ensure we set up tests.h header generation rule just once
 355 ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
 356 $(TRUNNER_TESTS_DIR)-tests-hdr := y
 357 $(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
 358         $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
 359         $$(shell ( cd $(TRUNNER_TESTS_DIR);                             \
 360                   echo '/* Generated header, do not edit */';           \
 361                   ls *.c 2> /dev/null |                                 \
 362                         sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@';      \
 363                  ) > $$@)
 364 endif
 365
 366 # compile individual test files
 367 # Note: we cd into output directory to ensure embedded BPF object is found
 368 $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:                       \
 369                       $(TRUNNER_TESTS_DIR)/%.c                          \
 370                       $(TRUNNER_EXTRA_HDRS)                             \
 371                       $(TRUNNER_BPF_OBJS)                               \
 372                       $(TRUNNER_BPF_SKELS)                              \
 373                       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 374         $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
 375         $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
 376
 377 $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:                           \
 378                        %.c                                              \
 379                        $(TRUNNER_EXTRA_HDRS)                            \
 380                        $(TRUNNER_TESTS_HDR)                             \
 381                        $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 382         $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
 383         $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
 384
 385 # only copy extra resources if in flavored build
 386 $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
 387 ifneq ($2,)
 388         $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
 389         $(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
 390 endif
 391
 392 $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)                       \
 393                              $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)           \
 394                              $(RESOLVE_BTFIDS)                          \
 395                              | $(TRUNNER_BINARY)-extras
 396         $$(call msg,BINARY,,$$@)
 397         $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
 398         $(Q)$(RESOLVE_BTFIDS) --no-fail --btf $(TRUNNER_OUTPUT)/btf_data.o $$@
 399
 400 endef
 401
 402 # Define test_progs test runner.
 403 TRUNNER_TESTS_DIR := prog_tests
 404 TRUNNER_BPF_PROGS_DIR := progs
 405 TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c  \
 406                          network_helpers.c testing_helpers.c            \
 407                          btf_helpers.c  flow_dissector_load.h
 408 TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko  \
 409                        ima_setup.sh                                     \
 410                        $(wildcard progs/btf_dump_test_case_*.c)
 411 TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
 412 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
 413 TRUNNER_BPF_CFLAGS += -DENABLE_ATOMICS_TESTS
 414 $(eval $(call DEFINE_TEST_RUNNER,test_progs))
 415
 416 # Define test_progs-no_alu32 test runner.
 417 TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
 418 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
 419 $(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
 420
 421 # Define test_progs BPF-GCC-flavored test runner.
 422 ifneq ($(BPF_GCC),)
 423 TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
 424 TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc)
 425 $(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
 426 endif
 427
 428 # Define test_maps test runner.
 429 TRUNNER_TESTS_DIR := map_tests
 430 TRUNNER_BPF_PROGS_DIR := progs
 431 TRUNNER_EXTRA_SOURCES := test_maps.c
 432 TRUNNER_EXTRA_FILES :=
 433 TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
 434 TRUNNER_BPF_CFLAGS :=
 435 $(eval $(call DEFINE_TEST_RUNNER,test_maps))
 436
 437 # Define test_verifier test runner.
 438 # It is much simpler than test_maps/test_progs and sufficiently different from
 439 # them (e.g., test.h is using completely pattern), that it's worth just
 440 # explicitly defining all the rules explicitly.
 441 verifier/tests.h: verifier/*.c
 442         $(shell ( cd verifier/; \
 443                   echo '/* Generated header, do not edit */'; \
 444                   echo '#ifdef FILL_ARRAY'; \
 445                   ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
 446                   echo '#endif' \
 447                 ) > verifier/tests.h)
 448 $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
 449         $(call msg,BINARY,,$@)
 450         $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 451
 452 # Make sure we are able to include and link libbpf against c++.
 453 $(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
 454         $(call msg,CXX,,$@)
 455         $(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
 456
 457 # Benchmark runner
 458 $(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
 459         $(call msg,CC,,$@)
 460         $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 461 $(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
 462 $(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
 463 $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
 464                             $(OUTPUT)/perfbuf_bench.skel.h
 465 $(OUTPUT)/bench.o: bench.h testing_helpers.h
 466 $(OUTPUT)/bench: LDLIBS += -lm
 467 $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
 468                  $(OUTPUT)/bench_count.o \
 469                  $(OUTPUT)/bench_rename.o \
 470                  $(OUTPUT)/bench_trigger.o \
 471                  $(OUTPUT)/bench_ringbufs.o
 472         $(call msg,BINARY,,$@)
 473         $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
 474
 475 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR)  \
 476         prog_tests/tests.h map_tests/tests.h verifier/tests.h           \
 477         feature                                                         \
 478         $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko)