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