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$(APIDIR) \ 29 -Dbpf_prog_load=bpf_prog_test_load \ 30 -Dbpf_load_program=bpf_test_load_program 31LDLIBS += -lcap -lelf -lz -lrt -lpthread 32 33# Order correspond to 'make run_tests' order 34TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 35 test_verifier_log test_dev_cgroup \ 36 test_sock test_sockmap get_cgroup_id_user test_socket_cookie \ 37 test_cgroup_storage \ 38 test_netcnt test_tcpnotify_user test_sysctl \ 39 test_progs-no_alu32 \ 40 test_current_pid_tgid_new_ns 41 42# Also test bpf-gcc, if present 43ifneq ($(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 test_bpftool_metadata.sh \ 73 74TEST_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' 81TEST_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 85TEST_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# $4 - optional extra arg, emitted as-is, if provided. 92ifeq ($(V),1) 93Q = 94msg = 95else 96Q = @ 97msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))"; 98MAKEFLAGS += --no-print-directory 99submake_extras := feature_display=0 100endif 101 102# override lib.mk's default rules 103OVERRIDE_TARGETS := 1 104override define CLEAN 105 $(call msg,CLEAN) 106 $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 107endef 108 109include ../lib.mk 110 111SCRATCH_DIR := $(OUTPUT)/tools 112BUILD_DIR := $(SCRATCH_DIR)/build 113INCLUDE_DIR := $(SCRATCH_DIR)/include 114BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 115RESOLVE_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 143VMLINUX_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) 148VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 149 150DEFAULT_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_tcpnotify_user: cgroup_helpers.c trace_helpers.c 167$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c 168$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c 169$(OUTPUT)/test_netcnt: cgroup_helpers.c 170$(OUTPUT)/test_sock_fields: cgroup_helpers.c 171$(OUTPUT)/test_sysctl: cgroup_helpers.c 172 173BPFTOOL ?= $(DEFAULT_BPFTOOL) 174$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 175 $(BPFOBJ) | $(BUILD_DIR)/bpftool 176 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 177 OUTPUT=$(BUILD_DIR)/bpftool/ \ 178 prefix= DESTDIR=$(SCRATCH_DIR)/ install 179 $(Q)mkdir -p $(BUILD_DIR)/bpftool/Documentation 180 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 181 -C $(BPFTOOLDIR)/Documentation \ 182 OUTPUT=$(BUILD_DIR)/bpftool/Documentation/ \ 183 prefix= DESTDIR=$(SCRATCH_DIR)/ install 184 185$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 186 ../../../include/uapi/linux/bpf.h \ 187 | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf 188 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 189 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 190 191$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR): 192 $(call msg,MKDIR,,$@) 193 $(Q)mkdir -p $@ 194 195$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR) 196ifeq ($(VMLINUX_H),) 197 $(call msg,GEN,,$@) 198 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@ 199else 200 $(call msg,CP,,$@) 201 $(Q)cp "$(VMLINUX_H)" $@ 202endif 203 204$(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids \ 205 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 206 $(TOOLSDIR)/lib/rbtree.c \ 207 $(TOOLSDIR)/lib/zalloc.c \ 208 $(TOOLSDIR)/lib/string.c \ 209 $(TOOLSDIR)/lib/ctype.c \ 210 $(TOOLSDIR)/lib/str_error_r.c 211 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 212 OUTPUT=$(BUILD_DIR)/resolve_btfids/ BPFOBJ=$(BPFOBJ) 213 214# Get Clang's default includes on this system, as opposed to those seen by 215# '-target bpf'. This fixes "missing" files on some architectures/distros, 216# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 217# 218# Use '-idirafter': Don't interfere with include mechanics except where the 219# build would have failed anyways. 220define get_sys_includes 221$(shell $(1) -v -E - </dev/null 2>&1 \ 222 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') 223endef 224 225# Determine target endianness. 226IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 227 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 228MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 229 230CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG)) 231BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 232 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 233 -I$(abspath $(OUTPUT)/../usr/include) 234 235CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ 236 -Wno-compare-distinct-pointer-types 237 238$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 239$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 240 241$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 242 243# Build BPF object using Clang 244# $1 - input .c file 245# $2 - output .o file 246# $3 - CFLAGS 247# $4 - LDFLAGS 248define CLANG_BPF_BUILD_RULE 249 $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2) 250 $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \ 251 -c $1 -o - || echo "BPF obj compilation failed") | \ 252 $(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2 253endef 254# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 255define CLANG_NOALU32_BPF_BUILD_RULE 256 $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2) 257 $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \ 258 -c $1 -o - || echo "BPF obj compilation failed") | \ 259 $(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2 260endef 261# Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC 262define CLANG_NATIVE_BPF_BUILD_RULE 263 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 264 $(Q)($(CLANG) $3 -O2 -emit-llvm \ 265 -c $1 -o - || echo "BPF obj compilation failed") | \ 266 $(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2 267endef 268# Build BPF object using GCC 269define GCC_BPF_BUILD_RULE 270 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) 271 $(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2 272endef 273 274SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 275 276# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 277# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 278# Parameters: 279# $1 - test runner base binary name (e.g., test_progs) 280# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 281define DEFINE_TEST_RUNNER 282 283TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 284TRUNNER_BINARY := $1$(if $2,-)$2 285TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 286 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 287TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 288 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 289TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 290TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 291TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 292TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS)) 293TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 294 $$(filter-out $(SKEL_BLACKLIST), \ 295 $$(TRUNNER_BPF_SRCS))) 296TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 297 298# Evaluate rules now with extra TRUNNER_XXX variables above already defined 299$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 300 301endef 302 303# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 304# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 305# $1 - test runner base binary name (e.g., test_progs) 306# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 307define DEFINE_TEST_RUNNER_RULES 308 309ifeq ($($(TRUNNER_OUTPUT)-dir),) 310$(TRUNNER_OUTPUT)-dir := y 311$(TRUNNER_OUTPUT): 312 $$(call msg,MKDIR,,$$@) 313 $(Q)mkdir -p $$@ 314endif 315 316# ensure we set up BPF objects generation rule just once for a given 317# input/output directory combination 318ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 319$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 320$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 321 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 322 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 323 $$(INCLUDE_DIR)/vmlinux.h \ 324 $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT) 325 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 326 $(TRUNNER_BPF_CFLAGS), \ 327 $(TRUNNER_BPF_LDFLAGS)) 328 329$(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \ 330 $(TRUNNER_OUTPUT)/%.o \ 331 | $(BPFTOOL) $(TRUNNER_OUTPUT) 332 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 333 $(Q)$$(BPFTOOL) gen skeleton $$< > $$@ 334endif 335 336# ensure we set up tests.h header generation rule just once 337ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 338$(TRUNNER_TESTS_DIR)-tests-hdr := y 339$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 340 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 341 $$(shell ( cd $(TRUNNER_TESTS_DIR); \ 342 echo '/* Generated header, do not edit */'; \ 343 ls *.c 2> /dev/null | \ 344 sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \ 345 ) > $$@) 346endif 347 348# compile individual test files 349# Note: we cd into output directory to ensure embedded BPF object is found 350$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 351 $(TRUNNER_TESTS_DIR)/%.c \ 352 $(TRUNNER_EXTRA_HDRS) \ 353 $(TRUNNER_BPF_OBJS) \ 354 $(TRUNNER_BPF_SKELS) \ 355 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 356 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 357 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 358 359$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 360 %.c \ 361 $(TRUNNER_EXTRA_HDRS) \ 362 $(TRUNNER_TESTS_HDR) \ 363 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 364 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 365 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 366 367# only copy extra resources if in flavored build 368$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 369ifneq ($2,) 370 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 371 $(Q)cp -a $$^ $(TRUNNER_OUTPUT)/ 372endif 373 374$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 375 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 376 $(RESOLVE_BTFIDS) \ 377 | $(TRUNNER_BINARY)-extras 378 $$(call msg,BINARY,,$$@) 379 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ 380 $(Q)$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@ 381 382endef 383 384# Define test_progs test runner. 385TRUNNER_TESTS_DIR := prog_tests 386TRUNNER_BPF_PROGS_DIR := progs 387TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ 388 network_helpers.c testing_helpers.c \ 389 flow_dissector_load.h 390TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ 391 $(wildcard progs/btf_dump_test_case_*.c) 392TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 393TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 394TRUNNER_BPF_LDFLAGS := -mattr=+alu32 395$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 396 397# Define test_progs-no_alu32 test runner. 398TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 399TRUNNER_BPF_LDFLAGS := 400$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 401 402# Define test_progs BPF-GCC-flavored test runner. 403ifneq ($(BPF_GCC),) 404TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 405TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc) 406TRUNNER_BPF_LDFLAGS := 407$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 408endif 409 410# Define test_maps test runner. 411TRUNNER_TESTS_DIR := map_tests 412TRUNNER_BPF_PROGS_DIR := progs 413TRUNNER_EXTRA_SOURCES := test_maps.c 414TRUNNER_EXTRA_FILES := 415TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 416TRUNNER_BPF_CFLAGS := 417TRUNNER_BPF_LDFLAGS := 418$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 419 420# Define test_verifier test runner. 421# It is much simpler than test_maps/test_progs and sufficiently different from 422# them (e.g., test.h is using completely pattern), that it's worth just 423# explicitly defining all the rules explicitly. 424verifier/tests.h: verifier/*.c 425 $(shell ( cd verifier/; \ 426 echo '/* Generated header, do not edit */'; \ 427 echo '#ifdef FILL_ARRAY'; \ 428 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 429 echo '#endif' \ 430 ) > verifier/tests.h) 431$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 432 $(call msg,BINARY,,$@) 433 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 434 435# Make sure we are able to include and link libbpf against c++. 436$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 437 $(call msg,CXX,,$@) 438 $(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@ 439 440# Benchmark runner 441$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h 442 $(call msg,CC,,$@) 443 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 444$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 445$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 446$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 447 $(OUTPUT)/perfbuf_bench.skel.h 448$(OUTPUT)/bench.o: bench.h testing_helpers.h 449$(OUTPUT)/bench: LDLIBS += -lm 450$(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \ 451 $(OUTPUT)/bench_count.o \ 452 $(OUTPUT)/bench_rename.o \ 453 $(OUTPUT)/bench_trigger.o \ 454 $(OUTPUT)/bench_ringbufs.o 455 $(call msg,BINARY,,$@) 456 $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS) 457 458EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) \ 459 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 460 feature \ 461 $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc) 462