1# SPDX-License-Identifier: GPL-2.0 2include ../../../../scripts/Kbuild.include 3include ../../../scripts/Makefile.arch 4include ../../../scripts/Makefile.include 5 6CXX ?= $(CROSS_COMPILE)g++ 7 8CURDIR := $(abspath .) 9TOOLSDIR := $(abspath ../../..) 10LIBDIR := $(TOOLSDIR)/lib 11BPFDIR := $(LIBDIR)/bpf 12TOOLSINCDIR := $(TOOLSDIR)/include 13BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool 14APIDIR := $(TOOLSINCDIR)/uapi 15GENDIR := $(abspath ../../../../include/generated) 16GENHDR := $(GENDIR)/autoconf.h 17 18ifneq ($(wildcard $(GENHDR)),) 19 GENFLAGS := -DHAVE_GENHDR 20endif 21 22BPF_GCC ?= $(shell command -v bpf-gcc;) 23SAN_CFLAGS ?= 24CFLAGS += -g -Og -rdynamic -Wall $(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 29LDLIBS += -lcap -lelf -lz -lrt -lpthread 30 31# Order correspond to 'make run_tests' order 32TEST_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 40ifneq ($(BPF_GCC),) 41TEST_GEN_PROGS += test_progs-bpf_gcc 42endif 43 44TEST_GEN_FILES = test_lwt_ip_encap.o \ 45 test_tc_edt.o 46TEST_FILES = xsk_prereqs.sh \ 47 $(wildcard progs/btf_dump_test_case_*.c) 48 49# Order correspond to 'make run_tests' order 50TEST_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_doc_build.sh \ 72 test_xsk.sh 73 74TEST_PROGS_EXTENDED := with_addr.sh \ 75 with_tunnels.sh \ 76 test_xdp_vlan.sh 77 78# Compile but not part of 'make run_tests' 79TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ 80 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 81 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 82 xdpxceiver 83 84TEST_CUSTOM_PROGS = $(OUTPUT)/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 $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 106 $(Q)$(MAKE) -C bpf_testmod clean 107 $(Q)$(MAKE) docs-clean 108endef 109 110include ../lib.mk 111 112SCRATCH_DIR := $(OUTPUT)/tools 113BUILD_DIR := $(SCRATCH_DIR)/build 114INCLUDE_DIR := $(SCRATCH_DIR)/include 115BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 116ifneq ($(CROSS_COMPILE),) 117HOST_BUILD_DIR := $(BUILD_DIR)/host 118HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 119else 120HOST_BUILD_DIR := $(BUILD_DIR) 121HOST_SCRATCH_DIR := $(SCRATCH_DIR) 122endif 123HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 124RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 125 126VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 127 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 128 ../../../../vmlinux \ 129 /sys/kernel/btf/vmlinux \ 130 /boot/vmlinux-$(shell uname -r) 131VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 132ifeq ($(VMLINUX_BTF),) 133$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 134endif 135 136# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 137# to build individual tests. 138# NOTE: Semicolon at the end is critical to override lib.mk's default static 139# rule for binaries. 140$(notdir $(TEST_GEN_PROGS) \ 141 $(TEST_PROGS) \ 142 $(TEST_PROGS_EXTENDED) \ 143 $(TEST_GEN_PROGS_EXTENDED) \ 144 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; 145 146# sort removes libbpf duplicates when not cross-building 147MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 148 $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \ 149 $(INCLUDE_DIR)) 150$(MAKE_DIRS): 151 $(call msg,MKDIR,,$@) 152 $(Q)mkdir -p $@ 153 154$(OUTPUT)/%.o: %.c 155 $(call msg,CC,,$@) 156 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 157 158$(OUTPUT)/%:%.c 159 $(call msg,BINARY,,$@) 160 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 161 162$(OUTPUT)/urandom_read: urandom_read.c 163 $(call msg,BINARY,,$@) 164 $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1 165 166$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 167 $(call msg,MOD,,$@) 168 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 169 $(Q)$(MAKE) $(submake_extras) -C bpf_testmod 170 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 171 172$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) 173 $(call msg,CC,,$@) 174 $(Q)$(CC) -c $(CFLAGS) -o $@ $< 175 176DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 177 178$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) 179 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 180 OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \ 181 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \ 182 cp $(SCRATCH_DIR)/runqslower $@ 183 184$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ) 185$(TEST_GEN_FILES): docs 186 187$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c 188$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c 189$(OUTPUT)/test_sock: cgroup_helpers.c 190$(OUTPUT)/test_sock_addr: cgroup_helpers.c 191$(OUTPUT)/test_sockmap: cgroup_helpers.c 192$(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c 193$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c 194$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c 195$(OUTPUT)/test_netcnt: cgroup_helpers.c 196$(OUTPUT)/test_sock_fields: cgroup_helpers.c 197$(OUTPUT)/test_sysctl: cgroup_helpers.c 198 199BPFTOOL ?= $(DEFAULT_BPFTOOL) 200$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 201 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 202 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 203 CC=$(HOSTCC) LD=$(HOSTLD) \ 204 EXTRA_CFLAGS='-g -Og' \ 205 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 206 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install 207 208docs: 209 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 210 -f Makefile.docs \ 211 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 212 213docs-clean: 214 $(Q)$(MAKE) $(submake_extras) \ 215 -f Makefile.docs \ 216 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 217 218$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 219 ../../../include/uapi/linux/bpf.h \ 220 | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf 221 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 222 EXTRA_CFLAGS='-g -Og' \ 223 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 224 225ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 226$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 227 ../../../include/uapi/linux/bpf.h \ 228 | $(INCLUDE_DIR) $(HOST_BUILD_DIR)/libbpf 229 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 230 EXTRA_CFLAGS='-g -Og' \ 231 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \ 232 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 233endif 234 235$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 236ifeq ($(VMLINUX_H),) 237 $(call msg,GEN,,$@) 238 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@ 239else 240 $(call msg,CP,,$@) 241 $(Q)cp "$(VMLINUX_H)" $@ 242endif 243 244$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 245 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 246 $(TOOLSDIR)/lib/rbtree.c \ 247 $(TOOLSDIR)/lib/zalloc.c \ 248 $(TOOLSDIR)/lib/string.c \ 249 $(TOOLSDIR)/lib/ctype.c \ 250 $(TOOLSDIR)/lib/str_error_r.c 251 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 252 CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \ 253 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 254 255# Get Clang's default includes on this system, as opposed to those seen by 256# '-target bpf'. This fixes "missing" files on some architectures/distros, 257# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 258# 259# Use '-idirafter': Don't interfere with include mechanics except where the 260# build would have failed anyways. 261define get_sys_includes 262$(shell $(1) -v -E - </dev/null 2>&1 \ 263 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 264$(shell $(1) -dM -E - </dev/null | grep '#define __riscv_xlen ' | sed 's/#define /-D/' | sed 's/ /=/') 265endef 266 267# Determine target endianness. 268IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 269 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 270MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 271 272CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG)) 273BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 274 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 275 -I$(abspath $(OUTPUT)/../usr/include) 276 277CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ 278 -Wno-compare-distinct-pointer-types 279 280$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 281$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 282 283$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 284 285# Build BPF object using Clang 286# $1 - input .c file 287# $2 - output .o file 288# $3 - CFLAGS 289define CLANG_BPF_BUILD_RULE 290 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 291 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v3 292endef 293# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 294define CLANG_NOALU32_BPF_BUILD_RULE 295 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 296 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v2 297endef 298# Build BPF object using GCC 299define GCC_BPF_BUILD_RULE 300 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) 301 $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2 302endef 303 304SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 305 306LINKED_SKELS := test_static_linked.skel.h 307 308test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o 309 310# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 311# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 312# Parameters: 313# $1 - test runner base binary name (e.g., test_progs) 314# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 315define DEFINE_TEST_RUNNER 316 317TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 318TRUNNER_BINARY := $1$(if $2,-)$2 319TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 320 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 321TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 322 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 323TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 324TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 325TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 326TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS)) 327TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 328 $$(filter-out $(SKEL_BLACKLIST), \ 329 $$(TRUNNER_BPF_SRCS))) 330TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 331TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 332 333# Evaluate rules now with extra TRUNNER_XXX variables above already defined 334$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 335 336endef 337 338# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 339# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 340# $1 - test runner base binary name (e.g., test_progs) 341# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 342define DEFINE_TEST_RUNNER_RULES 343 344ifeq ($($(TRUNNER_OUTPUT)-dir),) 345$(TRUNNER_OUTPUT)-dir := y 346$(TRUNNER_OUTPUT): 347 $$(call msg,MKDIR,,$$@) 348 $(Q)mkdir -p $$@ 349endif 350 351# ensure we set up BPF objects generation rule just once for a given 352# input/output directory combination 353ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 354$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 355$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 356 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 357 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 358 $$(INCLUDE_DIR)/vmlinux.h \ 359 $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT) 360 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 361 $(TRUNNER_BPF_CFLAGS)) 362 363$(TRUNNER_BPF_SKELS): %.skel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 364 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 365 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 366 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 367 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 368 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 369 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@ 370 371$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT) 372 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.o)) 373 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 374 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 375 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 376 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 377 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 378 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 379endif 380 381# ensure we set up tests.h header generation rule just once 382ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 383$(TRUNNER_TESTS_DIR)-tests-hdr := y 384$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 385 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 386 $$(shell ( cd $(TRUNNER_TESTS_DIR); \ 387 echo '/* Generated header, do not edit */'; \ 388 ls *.c 2> /dev/null | \ 389 sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \ 390 ) > $$@) 391endif 392 393# compile individual test files 394# Note: we cd into output directory to ensure embedded BPF object is found 395$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 396 $(TRUNNER_TESTS_DIR)/%.c \ 397 $(TRUNNER_EXTRA_HDRS) \ 398 $(TRUNNER_BPF_OBJS) \ 399 $(TRUNNER_BPF_SKELS) \ 400 $(TRUNNER_BPF_SKELS_LINKED) \ 401 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 402 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 403 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 404 405$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 406 %.c \ 407 $(TRUNNER_EXTRA_HDRS) \ 408 $(TRUNNER_TESTS_HDR) \ 409 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 410 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 411 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 412 413# non-flavored in-srctree builds receive special treatment, in particular, we 414# do not need to copy extra resources (see e.g. test_btf_dump_case()) 415$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 416ifneq ($2:$(OUTPUT),:$(shell pwd)) 417 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 418 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 419endif 420 421$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 422 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 423 $(RESOLVE_BTFIDS) \ 424 | $(TRUNNER_BINARY)-extras 425 $$(call msg,BINARY,,$$@) 426 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ 427 $(Q)$(RESOLVE_BTFIDS) --no-fail --btf $(TRUNNER_OUTPUT)/btf_data.o $$@ 428 429endef 430 431# Define test_progs test runner. 432TRUNNER_TESTS_DIR := prog_tests 433TRUNNER_BPF_PROGS_DIR := progs 434TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ 435 network_helpers.c testing_helpers.c \ 436 btf_helpers.c flow_dissector_load.h 437TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 438 ima_setup.sh \ 439 $(wildcard progs/btf_dump_test_case_*.c) 440TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 441TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 442TRUNNER_BPF_CFLAGS += -DENABLE_ATOMICS_TESTS 443$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 444 445# Define test_progs-no_alu32 test runner. 446TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 447TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 448$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 449 450# Define test_progs BPF-GCC-flavored test runner. 451ifneq ($(BPF_GCC),) 452TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 453TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc) 454$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 455endif 456 457# Define test_maps test runner. 458TRUNNER_TESTS_DIR := map_tests 459TRUNNER_BPF_PROGS_DIR := progs 460TRUNNER_EXTRA_SOURCES := test_maps.c 461TRUNNER_EXTRA_FILES := 462TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 463TRUNNER_BPF_CFLAGS := 464$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 465 466# Define test_verifier test runner. 467# It is much simpler than test_maps/test_progs and sufficiently different from 468# them (e.g., test.h is using completely pattern), that it's worth just 469# explicitly defining all the rules explicitly. 470verifier/tests.h: verifier/*.c 471 $(shell ( cd verifier/; \ 472 echo '/* Generated header, do not edit */'; \ 473 echo '#ifdef FILL_ARRAY'; \ 474 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 475 echo '#endif' \ 476 ) > verifier/tests.h) 477$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 478 $(call msg,BINARY,,$@) 479 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 480 481# Make sure we are able to include and link libbpf against c++. 482$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 483 $(call msg,CXX,,$@) 484 $(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@ 485 486# Benchmark runner 487$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h 488 $(call msg,CC,,$@) 489 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 490$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 491$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 492$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 493 $(OUTPUT)/perfbuf_bench.skel.h 494$(OUTPUT)/bench.o: bench.h testing_helpers.h 495$(OUTPUT)/bench: LDLIBS += -lm 496$(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \ 497 $(OUTPUT)/bench_count.o \ 498 $(OUTPUT)/bench_rename.o \ 499 $(OUTPUT)/bench_trigger.o \ 500 $(OUTPUT)/bench_ringbufs.o 501 $(call msg,BINARY,,$@) 502 $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS) 503 504EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 505 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 506 feature \ 507 $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko) 508 509.PHONY: docs docs-clean 510