1# SPDX-License-Identifier: GPL-2.0 2include ../../../build/Build.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 := $(GENDIR)/autoconf.h 17HOSTPKG_CONFIG := pkg-config 18 19ifneq ($(wildcard $(GENHDR)),) 20 GENFLAGS := -DHAVE_GENHDR 21endif 22 23BPF_GCC ?= $(shell command -v bpf-gcc;) 24SAN_CFLAGS ?= 25SAN_LDFLAGS ?= $(SAN_CFLAGS) 26CFLAGS += -g -O0 -rdynamic -Wall -Werror $(GENFLAGS) $(SAN_CFLAGS) \ 27 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 28 -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT) 29LDFLAGS += $(SAN_LDFLAGS) 30LDLIBS += -lelf -lz -lrt -lpthread 31 32# Silence some warnings when compiled with clang 33ifneq ($(LLVM),) 34CFLAGS += -Wno-unused-command-line-argument 35endif 36 37# Order correspond to 'make run_tests' order 38TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 39 test_verifier_log test_dev_cgroup \ 40 test_sock test_sockmap get_cgroup_id_user \ 41 test_cgroup_storage \ 42 test_tcpnotify_user test_sysctl \ 43 test_progs-no_alu32 44 45# Also test bpf-gcc, if present 46ifneq ($(BPF_GCC),) 47TEST_GEN_PROGS += test_progs-bpf_gcc 48endif 49 50TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o 51TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 52 53# Order correspond to 'make run_tests' order 54TEST_PROGS := test_kmod.sh \ 55 test_xdp_redirect.sh \ 56 test_xdp_redirect_multi.sh \ 57 test_xdp_meta.sh \ 58 test_xdp_veth.sh \ 59 test_offload.py \ 60 test_sock_addr.sh \ 61 test_tunnel.sh \ 62 test_lwt_seg6local.sh \ 63 test_lirc_mode2.sh \ 64 test_skb_cgroup_id.sh \ 65 test_flow_dissector.sh \ 66 test_xdp_vlan_mode_generic.sh \ 67 test_xdp_vlan_mode_native.sh \ 68 test_lwt_ip_encap.sh \ 69 test_tcp_check_syncookie.sh \ 70 test_tc_tunnel.sh \ 71 test_tc_edt.sh \ 72 test_xdping.sh \ 73 test_bpftool_build.sh \ 74 test_bpftool.sh \ 75 test_bpftool_metadata.sh \ 76 test_doc_build.sh \ 77 test_xsk.sh \ 78 test_xdp_features.sh 79 80TEST_PROGS_EXTENDED := with_addr.sh \ 81 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 82 test_xdp_vlan.sh test_bpftool.py 83 84# Compile but not part of 'make run_tests' 85TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ 86 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 87 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 88 xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ 89 xdp_features 90 91TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read $(OUTPUT)/sign-file 92TEST_GEN_FILES += liburandom_read.so 93 94# Emit succinct information message describing current building step 95# $1 - generic step name (e.g., CC, LINK, etc); 96# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor]; 97# $3 - target (assumed to be file); only file name will be emitted; 98# $4 - optional extra arg, emitted as-is, if provided. 99ifeq ($(V),1) 100Q = 101msg = 102else 103Q = @ 104msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))"; 105MAKEFLAGS += --no-print-directory 106submake_extras := feature_display=0 107endif 108 109# override lib.mk's default rules 110OVERRIDE_TARGETS := 1 111override define CLEAN 112 $(call msg,CLEAN) 113 $(Q)$(RM) -r $(TEST_GEN_PROGS) 114 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 115 $(Q)$(RM) -r $(TEST_GEN_FILES) 116 $(Q)$(RM) -r $(EXTRA_CLEAN) 117 $(Q)$(MAKE) -C bpf_testmod clean 118 $(Q)$(MAKE) docs-clean 119endef 120 121include ../lib.mk 122 123SCRATCH_DIR := $(OUTPUT)/tools 124BUILD_DIR := $(SCRATCH_DIR)/build 125INCLUDE_DIR := $(SCRATCH_DIR)/include 126BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 127ifneq ($(CROSS_COMPILE),) 128HOST_BUILD_DIR := $(BUILD_DIR)/host 129HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 130HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 131else 132HOST_BUILD_DIR := $(BUILD_DIR) 133HOST_SCRATCH_DIR := $(SCRATCH_DIR) 134HOST_INCLUDE_DIR := $(INCLUDE_DIR) 135endif 136HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 137RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 138RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 139 140VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 141 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 142 ../../../../vmlinux \ 143 /sys/kernel/btf/vmlinux \ 144 /boot/vmlinux-$(shell uname -r) 145VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 146ifeq ($(VMLINUX_BTF),) 147$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 148endif 149 150# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 151# to build individual tests. 152# NOTE: Semicolon at the end is critical to override lib.mk's default static 153# rule for binaries. 154$(notdir $(TEST_GEN_PROGS) \ 155 $(TEST_PROGS) \ 156 $(TEST_PROGS_EXTENDED) \ 157 $(TEST_GEN_PROGS_EXTENDED) \ 158 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; 159 160# sort removes libbpf duplicates when not cross-building 161MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 162 $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \ 163 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 164$(MAKE_DIRS): 165 $(call msg,MKDIR,,$@) 166 $(Q)mkdir -p $@ 167 168$(OUTPUT)/%.o: %.c 169 $(call msg,CC,,$@) 170 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 171 172$(OUTPUT)/%:%.c 173 $(call msg,BINARY,,$@) 174 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 175 176# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 177ifeq ($(SRCARCH),x86) 178LLD := lld 179else 180LLD := ld 181endif 182 183# Filter out -static for liburandom_read.so and its dependent targets so that static builds 184# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 185$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c 186 $(call msg,LIB,,$@) 187 $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 188 $^ $(filter-out -static,$(LDLIBS)) \ 189 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 190 -fPIC -shared -o $@ 191 192$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 193 $(call msg,BINARY,,$@) 194 $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 195 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 196 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 197 -Wl,-rpath=. -o $@ 198 199$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 200 $(call msg,SIGN-FILE,,$@) 201 $(Q)$(CC) $(shell $(HOSTPKG_CONFIG)--cflags libcrypto 2> /dev/null) \ 202 $< -o $@ \ 203 $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 204 205$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 206 $(call msg,MOD,,$@) 207 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 208 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod 209 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 210 211DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 212 213$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 214 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 215 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 216 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 217 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf \ 218 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 219 EXTRA_CFLAGS='-g -O0 $(SAN_CFLAGS)' \ 220 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \ 221 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 222 223TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL) 224 225$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 226 227CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 228TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 229TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 230CAP_HELPERS := $(OUTPUT)/cap_helpers.o 231 232$(OUTPUT)/test_dev_cgroup: $(CGROUP_HELPERS) $(TESTING_HELPERS) 233$(OUTPUT)/test_skb_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) 234$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS) 235$(OUTPUT)/test_sock_addr: $(CGROUP_HELPERS) $(TESTING_HELPERS) 236$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 237$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 238$(OUTPUT)/get_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) 239$(OUTPUT)/test_cgroup_storage: $(CGROUP_HELPERS) $(TESTING_HELPERS) 240$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 241$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 242$(OUTPUT)/test_tag: $(TESTING_HELPERS) 243$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 244$(OUTPUT)/xdping: $(TESTING_HELPERS) 245$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 246$(OUTPUT)/test_maps: $(TESTING_HELPERS) 247$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) 248$(OUTPUT)/xsk.o: $(BPFOBJ) 249 250BPFTOOL ?= $(DEFAULT_BPFTOOL) 251$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 252 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 253 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 254 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 255 EXTRA_CFLAGS='-g -O0' \ 256 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 257 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 258 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 259 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 260 261all: docs 262 263docs: 264 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 265 -f Makefile.docs \ 266 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 267 268docs-clean: 269 $(Q)$(MAKE) $(submake_extras) \ 270 -f Makefile.docs \ 271 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 272 273$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 274 $(APIDIR)/linux/bpf.h \ 275 | $(BUILD_DIR)/libbpf 276 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 277 EXTRA_CFLAGS='-g -O0 $(SAN_CFLAGS)' \ 278 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' \ 279 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 280 281ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 282$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 283 $(APIDIR)/linux/bpf.h \ 284 | $(HOST_BUILD_DIR)/libbpf 285 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 286 EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \ 287 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 288 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 289 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 290endif 291 292$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 293ifeq ($(VMLINUX_H),) 294 $(call msg,GEN,,$@) 295 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@ 296else 297 $(call msg,CP,,$@) 298 $(Q)cp "$(VMLINUX_H)" $@ 299endif 300 301$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 302 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 303 $(TOOLSDIR)/lib/rbtree.c \ 304 $(TOOLSDIR)/lib/zalloc.c \ 305 $(TOOLSDIR)/lib/string.c \ 306 $(TOOLSDIR)/lib/ctype.c \ 307 $(TOOLSDIR)/lib/str_error_r.c 308 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 309 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 310 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 311 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 312 313# Get Clang's default includes on this system, as opposed to those seen by 314# '-target bpf'. This fixes "missing" files on some architectures/distros, 315# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 316# 317# Use '-idirafter': Don't interfere with include mechanics except where the 318# build would have failed anyways. 319define get_sys_includes 320$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 321 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 322$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') 323endef 324 325# Determine target endianness. 326IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 327 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 328MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 329 330ifneq ($(CROSS_COMPILE),) 331CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 332endif 333 334CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 335BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 336 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 337 -I$(abspath $(OUTPUT)/../usr/include) 338 339CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ 340 -Wno-compare-distinct-pointer-types 341 342$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 343$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 344 345$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 346$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 347 348# Build BPF object using Clang 349# $1 - input .c file 350# $2 - output .o file 351# $3 - CFLAGS 352define CLANG_BPF_BUILD_RULE 353 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 354 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v3 -o $2 355endef 356# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 357define CLANG_NOALU32_BPF_BUILD_RULE 358 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 359 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v2 -o $2 360endef 361# Build BPF object using GCC 362define GCC_BPF_BUILD_RULE 363 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) 364 $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2 365endef 366 367SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 368 369LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 370 linked_vars.skel.h linked_maps.skel.h \ 371 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 372 test_usdt.skel.h 373 374LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 375 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 376 core_kern.c core_kern_overflow.c test_ringbuf.c \ 377 test_ringbuf_map_key.c 378 379# Generate both light skeleton and libbpf skeleton for these 380LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 381 kfunc_call_test_subprog.c 382SKEL_BLACKLIST += $$(LSKELS) 383 384test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 385linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 386linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 387linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 388# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 389# but that's created as a side-effect of the skel.h generation. 390test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 391test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 392test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 393xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 394xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 395xdp_features.skel.h-deps := xdp_features.bpf.o 396 397LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps))) 398 399# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 400# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 401# Parameters: 402# $1 - test runner base binary name (e.g., test_progs) 403# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 404define DEFINE_TEST_RUNNER 405 406TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 407TRUNNER_BINARY := $1$(if $2,-)$2 408TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 409 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 410TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 411 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 412TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 413TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 414TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 415TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 416TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 417 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 418 $$(TRUNNER_BPF_SRCS))) 419TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 420TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 421TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 422 423# Evaluate rules now with extra TRUNNER_XXX variables above already defined 424$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 425 426endef 427 428# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 429# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 430# $1 - test runner base binary name (e.g., test_progs) 431# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 432define DEFINE_TEST_RUNNER_RULES 433 434ifeq ($($(TRUNNER_OUTPUT)-dir),) 435$(TRUNNER_OUTPUT)-dir := y 436$(TRUNNER_OUTPUT): 437 $$(call msg,MKDIR,,$$@) 438 $(Q)mkdir -p $$@ 439endif 440 441# ensure we set up BPF objects generation rule just once for a given 442# input/output directory combination 443ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 444$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 445$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 446 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 447 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 448 $$(INCLUDE_DIR)/vmlinux.h \ 449 $(wildcard $(BPFDIR)/bpf_*.h) \ 450 $(wildcard $(BPFDIR)/*.bpf.h) \ 451 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 452 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 453 $(TRUNNER_BPF_CFLAGS)) 454 455$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 456 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 457 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 458 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 459 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 460 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 461 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 462 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 463 464$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 465 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 466 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 467 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 468 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 469 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 470 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 471 472$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT) 473 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 474 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 475 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 476 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 477 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 478 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 479 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 480 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 481endif 482 483# ensure we set up tests.h header generation rule just once 484ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 485$(TRUNNER_TESTS_DIR)-tests-hdr := y 486$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 487 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 488 $$(shell (echo '/* Generated header, do not edit */'; \ 489 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 490 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 491 ) > $$@) 492endif 493 494# compile individual test files 495# Note: we cd into output directory to ensure embedded BPF object is found 496$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 497 $(TRUNNER_TESTS_DIR)/%.c \ 498 $(TRUNNER_EXTRA_HDRS) \ 499 $(TRUNNER_BPF_OBJS) \ 500 $(TRUNNER_BPF_SKELS) \ 501 $(TRUNNER_BPF_LSKELS) \ 502 $(TRUNNER_BPF_SKELS_LINKED) \ 503 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 504 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 505 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 506 507$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 508 %.c \ 509 $(TRUNNER_EXTRA_HDRS) \ 510 $(TRUNNER_TESTS_HDR) \ 511 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 512 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 513 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 514 515# non-flavored in-srctree builds receive special treatment, in particular, we 516# do not need to copy extra resources (see e.g. test_btf_dump_case()) 517$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 518ifneq ($2:$(OUTPUT),:$(shell pwd)) 519 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 520 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 521endif 522 523$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 524 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 525 $(RESOLVE_BTFIDS) \ 526 | $(TRUNNER_BINARY)-extras 527 $$(call msg,BINARY,,$$@) 528 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ 529 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 530 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/bootstrap/bpftool \ 531 $(OUTPUT)/$(if $2,$2/)bpftool 532 533endef 534 535# Define test_progs test runner. 536TRUNNER_TESTS_DIR := prog_tests 537TRUNNER_BPF_PROGS_DIR := progs 538TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ 539 network_helpers.c testing_helpers.c \ 540 btf_helpers.c flow_dissector_load.h \ 541 cap_helpers.c test_loader.c xsk.c 542TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 543 $(OUTPUT)/liburandom_read.so \ 544 $(OUTPUT)/xdp_synproxy \ 545 $(OUTPUT)/sign-file \ 546 ima_setup.sh \ 547 verify_sig_setup.sh \ 548 $(wildcard progs/btf_dump_test_case_*.c) \ 549 $(wildcard progs/*.bpf.o) 550TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 551TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 552$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 553 554# Define test_progs-no_alu32 test runner. 555TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 556TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 557$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 558 559# Define test_progs BPF-GCC-flavored test runner. 560ifneq ($(BPF_GCC),) 561TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 562TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 563$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 564endif 565 566# Define test_maps test runner. 567TRUNNER_TESTS_DIR := map_tests 568TRUNNER_BPF_PROGS_DIR := progs 569TRUNNER_EXTRA_SOURCES := test_maps.c 570TRUNNER_EXTRA_FILES := 571TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 572TRUNNER_BPF_CFLAGS := 573$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 574 575# Define test_verifier test runner. 576# It is much simpler than test_maps/test_progs and sufficiently different from 577# them (e.g., test.h is using completely pattern), that it's worth just 578# explicitly defining all the rules explicitly. 579verifier/tests.h: verifier/*.c 580 $(shell ( cd verifier/; \ 581 echo '/* Generated header, do not edit */'; \ 582 echo '#ifdef FILL_ARRAY'; \ 583 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 584 echo '#endif' \ 585 ) > verifier/tests.h) 586$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 587 $(call msg,BINARY,,$@) 588 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 589 590$(OUTPUT)/xskxceiver: xskxceiver.c $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 591 $(call msg,BINARY,,$@) 592 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 593 594$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 595 $(call msg,BINARY,,$@) 596 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 597 598$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 599 $(call msg,BINARY,,$@) 600 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 601 602# Make sure we are able to include and link libbpf against c++. 603$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 604 $(call msg,CXX,,$@) 605 $(Q)$(CXX) $(CFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 606 607# Benchmark runner 608$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 609 $(call msg,CC,,$@) 610 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 611$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 612$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 613$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 614 $(OUTPUT)/perfbuf_bench.skel.h 615$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 616$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 617$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 618$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 619$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 620$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 621$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 622$(OUTPUT)/bench: LDLIBS += -lm 623$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 624 $(TESTING_HELPERS) \ 625 $(TRACE_HELPERS) \ 626 $(OUTPUT)/bench_count.o \ 627 $(OUTPUT)/bench_rename.o \ 628 $(OUTPUT)/bench_trigger.o \ 629 $(OUTPUT)/bench_ringbufs.o \ 630 $(OUTPUT)/bench_bloom_filter_map.o \ 631 $(OUTPUT)/bench_bpf_loop.o \ 632 $(OUTPUT)/bench_strncmp.o \ 633 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 634 $(OUTPUT)/bench_local_storage.o \ 635 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o 636 $(call msg,BINARY,,$@) 637 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 638 639$(OUTPUT)/veristat.o: $(BPFOBJ) 640$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 641 $(call msg,BINARY,,$@) 642 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 643 644EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 645 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 646 feature bpftool \ 647 $(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h *.subskel.h \ 648 no_alu32 bpf_gcc bpf_testmod.ko \ 649 liburandom_read.so) 650 651.PHONY: docs docs-clean 652 653# Delete partially updated (corrupted) files on error 654.DELETE_ON_ERROR: 655