1# SPDX-License-Identifier: GPL-2.0 2include ../../../build/Build.include 3include ../../../scripts/Makefile.arch 4include ../../../scripts/Makefile.include 5 6CXX ?= $(CROSS_COMPILE)g++ 7OBJCOPY ?= $(CROSS_COMPILE)objcopy 8 9CURDIR := $(abspath .) 10TOOLSDIR := $(abspath ../../..) 11LIBDIR := $(TOOLSDIR)/lib 12BPFDIR := $(LIBDIR)/bpf 13TOOLSINCDIR := $(TOOLSDIR)/include 14TOOLSARCHINCDIR := $(TOOLSDIR)/arch/$(SRCARCH)/include 15BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool 16APIDIR := $(TOOLSINCDIR)/uapi 17ifneq ($(O),) 18GENDIR := $(O)/include/generated 19else 20GENDIR := $(abspath ../../../../include/generated) 21endif 22GENHDR := $(GENDIR)/autoconf.h 23PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config 24 25ifneq ($(wildcard $(GENHDR)),) 26 GENFLAGS := -DHAVE_GENHDR 27endif 28 29BPF_GCC ?= $(shell command -v bpf-gcc;) 30SAN_CFLAGS ?= 31SAN_LDFLAGS ?= $(SAN_CFLAGS) 32RELEASE ?= 33OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0) 34 35LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null) 36LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) 37 38SKIP_DOCS ?= 39SKIP_LLVM ?= 40 41ifeq ($(srctree),) 42srctree := $(patsubst %/,%,$(dir $(CURDIR))) 43srctree := $(patsubst %/,%,$(dir $(srctree))) 44srctree := $(patsubst %/,%,$(dir $(srctree))) 45srctree := $(patsubst %/,%,$(dir $(srctree))) 46endif 47 48CFLAGS += -g $(OPT_FLAGS) -rdynamic -std=gnu11 \ 49 -Wall -Werror -fno-omit-frame-pointer \ 50 -Wno-unused-but-set-variable \ 51 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ 52 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 53 -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT) 54LDFLAGS += $(SAN_LDFLAGS) 55LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread 56 57PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") 58PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) 59LDLIBS += $(PCAP_LIBS) 60CFLAGS += $(PCAP_CFLAGS) 61 62# Some utility functions use LLVM libraries 63jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS) 64 65ifneq ($(LLVM),) 66# Silence some warnings when compiled with clang 67CFLAGS += -Wno-unused-command-line-argument 68endif 69 70# Check whether bpf cpu=v4 is supported or not by clang 71ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),) 72CLANG_CPUV4 := 1 73endif 74 75# Order correspond to 'make run_tests' order 76TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \ 77 test_sockmap \ 78 test_tcpnotify_user \ 79 test_progs-no_alu32 80TEST_INST_SUBDIRS := no_alu32 81 82# Also test bpf-gcc, if present 83ifneq ($(BPF_GCC),) 84TEST_GEN_PROGS += test_progs-bpf_gcc 85TEST_INST_SUBDIRS += bpf_gcc 86 87# The following tests contain C code that, although technically legal, 88# triggers GCC warnings that cannot be disabled: declaration of 89# anonymous struct types in function parameter lists. 90progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error 91progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error 92progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error 93progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error 94progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error 95 96endif 97 98ifneq ($(CLANG_CPUV4),) 99TEST_GEN_PROGS += test_progs-cpuv4 100TEST_INST_SUBDIRS += cpuv4 101endif 102 103TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 104 105# Order correspond to 'make run_tests' order 106TEST_PROGS := test_kmod.sh \ 107 test_lirc_mode2.sh \ 108 test_xdping.sh \ 109 test_bpftool_build.sh \ 110 test_bpftool.sh \ 111 test_doc_build.sh \ 112 test_xsk.sh \ 113 test_xdp_features.sh 114 115TEST_PROGS_EXTENDED := \ 116 ima_setup.sh verify_sig_setup.sh \ 117 test_bpftool.py 118 119TEST_KMODS := bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \ 120 bpf_test_modorder_y.ko bpf_test_rqspinlock.ko 121TEST_KMOD_TARGETS = $(addprefix $(OUTPUT)/,$(TEST_KMODS)) 122 123# Compile but not part of 'make run_tests' 124TEST_GEN_PROGS_EXTENDED = \ 125 bench \ 126 flow_dissector_load \ 127 test_cpp \ 128 test_lirc_mode2_user \ 129 veristat \ 130 xdp_features \ 131 xdp_hw_metadata \ 132 xdp_synproxy \ 133 xdping \ 134 xskxceiver 135 136TEST_GEN_FILES += $(TEST_KMODS) liburandom_read.so urandom_read sign-file uprobe_multi 137 138ifneq ($(V),1) 139submake_extras := feature_display=0 140endif 141 142# override lib.mk's default rules 143OVERRIDE_TARGETS := 1 144override define CLEAN 145 $(call msg,CLEAN) 146 $(Q)$(RM) -r $(TEST_GEN_PROGS) 147 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 148 $(Q)$(RM) -r $(TEST_GEN_FILES) 149 $(Q)$(RM) -r $(TEST_KMODS) 150 $(Q)$(RM) -r $(EXTRA_CLEAN) 151 $(Q)$(MAKE) -C test_kmods clean 152 $(Q)$(MAKE) docs-clean 153endef 154 155include ../lib.mk 156 157NON_CHECK_FEAT_TARGETS := clean docs-clean 158CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 159ifneq ($(CHECK_FEAT),) 160FEATURE_USER := .selftests 161FEATURE_TESTS := llvm 162FEATURE_DISPLAY := $(FEATURE_TESTS) 163 164# Makefile.feature expects OUTPUT to end with a slash 165ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 166$(let OUTPUT,$(OUTPUT)/,\ 167 $(eval include ../../../build/Makefile.feature)) 168else 169override OUTPUT := $(OUTPUT)/ 170$(eval include ../../../build/Makefile.feature) 171override OUTPUT := $(patsubst %/,%,$(OUTPUT)) 172endif 173endif 174 175ifneq ($(SKIP_LLVM),1) 176ifeq ($(feature-llvm),1) 177 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 178 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 179 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 180 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 181 # Prefer linking statically if it's available, otherwise fallback to shared 182 ifeq ($(shell $(LLVM_CONFIG) --link-static --libs >/dev/null 2>&1 && echo static),static) 183 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 184 LLVM_LDLIBS += $(filter-out -lxml2,$(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))) 185 LLVM_LDLIBS += -lstdc++ 186 else 187 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-shared --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 188 endif 189 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 190endif 191endif 192 193SCRATCH_DIR := $(OUTPUT)/tools 194BUILD_DIR := $(SCRATCH_DIR)/build 195INCLUDE_DIR := $(SCRATCH_DIR)/include 196BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 197ifneq ($(CROSS_COMPILE),) 198HOST_BUILD_DIR := $(BUILD_DIR)/host 199HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 200HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 201else 202HOST_BUILD_DIR := $(BUILD_DIR) 203HOST_SCRATCH_DIR := $(SCRATCH_DIR) 204HOST_INCLUDE_DIR := $(INCLUDE_DIR) 205endif 206HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 207RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 208VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 209 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 210 ../../../../vmlinux \ 211 /sys/kernel/btf/vmlinux \ 212 /boot/vmlinux-$(shell uname -r) 213VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 214ifeq ($(VMLINUX_BTF),) 215$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 216endif 217 218# Define simple and short `make test_progs`, `make test_maps`, etc targets 219# to build individual tests. 220# NOTE: Semicolon at the end is critical to override lib.mk's default static 221# rule for binaries. 222$(notdir $(TEST_GEN_PROGS) $(TEST_KMODS) \ 223 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ; 224 225# sort removes libbpf duplicates when not cross-building 226MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 227 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ 228 $(HOST_BUILD_DIR)/resolve_btfids \ 229 $(INCLUDE_DIR)) 230$(MAKE_DIRS): 231 $(call msg,MKDIR,,$@) 232 $(Q)mkdir -p $@ 233 234$(OUTPUT)/%.o: %.c 235 $(call msg,CC,,$@) 236 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 237 238$(OUTPUT)/%:%.c 239 $(call msg,BINARY,,$@) 240 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 241 242# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 243ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) 244LLD := lld 245else 246LLD := $(shell command -v $(LD)) 247endif 248 249# Filter out -static for liburandom_read.so and its dependent targets so that static builds 250# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 251$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map 252 $(call msg,LIB,,$@) 253 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 254 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 255 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ 256 -Wno-unused-command-line-argument \ 257 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 258 -Wl,--version-script=liburandom_read.map \ 259 -fPIC -shared -o $@ 260 261$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 262 $(call msg,BINARY,,$@) 263 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 264 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 265 -Wno-unused-command-line-argument \ 266 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 267 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 268 -Wl,-rpath=. -o $@ 269 270$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 271 $(call msg,SIGN-FILE,,$@) 272 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 273 $< -o $@ \ 274 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 275 276# This should really be a grouped target, but make versions before 4.3 don't 277# support that for regular rules. However, pattern matching rules are implicitly 278# treated as grouped even with older versions of make, so as a workaround, the 279# subst() turns the rule into a pattern matching rule 280$(addprefix test_kmods/,$(subst .ko,%ko,$(TEST_KMODS))): $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard test_kmods/Makefile test_kmods/*.[ch]) 281 $(Q)$(RM) test_kmods/*.ko test_kmods/*.mod.o # force re-compilation 282 $(Q)$(MAKE) $(submake_extras) -C test_kmods \ 283 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 284 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 285 286$(TEST_KMOD_TARGETS): $(addprefix test_kmods/,$(TEST_KMODS)) 287 $(call msg,MOD,,$@) 288 $(Q)cp test_kmods/$(@F) $@ 289 290 291DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 292ifneq ($(CROSS_COMPILE),) 293CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 294TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 295USE_BOOTSTRAP := "" 296else 297TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 298USE_BOOTSTRAP := "bootstrap/" 299endif 300 301TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 302 303$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 304 305TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 306CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 307UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 308TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 309JSON_WRITER := $(OUTPUT)/json_writer.o 310CAP_HELPERS := $(OUTPUT)/cap_helpers.o 311NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 312 313$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 314$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 315$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 316$(OUTPUT)/test_tag: $(TESTING_HELPERS) 317$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 318$(OUTPUT)/xdping: $(TESTING_HELPERS) 319$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 320$(OUTPUT)/test_maps: $(TESTING_HELPERS) 321$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 322$(OUTPUT)/xsk.o: $(BPFOBJ) 323 324BPFTOOL ?= $(DEFAULT_BPFTOOL) 325$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 326 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 327 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 328 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 329 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 330 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 331 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 332 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 333 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 334 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 335 336ifneq ($(CROSS_COMPILE),) 337$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 338 $(BPFOBJ) | $(BUILD_DIR)/bpftool 339 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 340 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 341 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 342 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 343 OUTPUT=$(BUILD_DIR)/bpftool/ \ 344 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 345 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 346 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 347endif 348 349ifneq ($(SKIP_DOCS),1) 350all: docs 351endif 352 353docs: 354 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 355 -f Makefile.docs \ 356 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 357 358docs-clean: 359 $(Q)$(MAKE) $(submake_extras) \ 360 -f Makefile.docs \ 361 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 362 363$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 364 $(APIDIR)/linux/bpf.h \ 365 | $(BUILD_DIR)/libbpf 366 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 367 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 368 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' \ 369 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 370 371ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 372$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 373 $(APIDIR)/linux/bpf.h \ 374 | $(HOST_BUILD_DIR)/libbpf 375 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 376 ARCH= CROSS_COMPILE= \ 377 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 378 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 379 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 380 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 381 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 382endif 383 384# vmlinux.h is first dumped to a temporary file and then compared to 385# the previous version. This helps to avoid unnecessary re-builds of 386# $(TRUNNER_BPF_OBJS) 387$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 388ifeq ($(VMLINUX_H),) 389 $(call msg,GEN,,$@) 390 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 391 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 392else 393 $(call msg,CP,,$@) 394 $(Q)cp "$(VMLINUX_H)" $@ 395endif 396 397$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 398 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 399 $(TOOLSDIR)/lib/rbtree.c \ 400 $(TOOLSDIR)/lib/zalloc.c \ 401 $(TOOLSDIR)/lib/string.c \ 402 $(TOOLSDIR)/lib/ctype.c \ 403 $(TOOLSDIR)/lib/str_error_r.c 404 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 405 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 406 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 407 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 408 409# Get Clang's default includes on this system, as opposed to those seen by 410# '--target=bpf'. This fixes "missing" files on some architectures/distros, 411# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 412# 413# Use '-idirafter': Don't interfere with include mechanics except where the 414# build would have failed anyways. 415define get_sys_includes 416$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 417 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 418$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 419$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 420$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 421endef 422 423# Determine target endianness. 424IS_LITTLE_ENDIAN := $(shell $(CC) -dM -E - </dev/null | \ 425 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 426MENDIAN:=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 427BPF_TARGET_ENDIAN:=$(if $(IS_LITTLE_ENDIAN),--target=bpfel,--target=bpfeb) 428 429ifneq ($(CROSS_COMPILE),) 430CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 431endif 432 433CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 434BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 435 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 436 -I$(abspath $(OUTPUT)/../usr/include) \ 437 -std=gnu11 \ 438 -fno-strict-aliasing \ 439 -Wno-microsoft-anon-tag \ 440 -fms-extensions \ 441 -Wno-compare-distinct-pointer-types \ 442 -Wno-initializer-overrides \ 443 # 444# TODO: enable me -Wsign-compare 445 446CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 447 448$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 449$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 450 451$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 452$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 453 454# Build BPF object using Clang 455# $1 - input .c file 456# $2 - output .o file 457# $3 - CFLAGS 458# $4 - binary name 459define CLANG_BPF_BUILD_RULE 460 $(call msg,CLNG-BPF,$4,$2) 461 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2 462endef 463# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 464define CLANG_NOALU32_BPF_BUILD_RULE 465 $(call msg,CLNG-BPF,$4,$2) 466 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2 467endef 468# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 469define CLANG_CPUV4_BPF_BUILD_RULE 470 $(call msg,CLNG-BPF,$4,$2) 471 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2 472endef 473# Build BPF object using GCC 474define GCC_BPF_BUILD_RULE 475 $(call msg,GCC-BPF,$4,$2) 476 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 477endef 478 479SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 480 481LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 482 linked_vars.skel.h linked_maps.skel.h \ 483 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 484 test_usdt.skel.h 485 486LSKELS := fexit_sleep.c trace_printk.c trace_vprintk.c map_ptr_kern.c \ 487 core_kern.c core_kern_overflow.c test_ringbuf.c \ 488 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c \ 489 test_ringbuf_overwrite.c 490 491LSKELS_SIGNED := fentry_test.c fexit_test.c atomics.c 492 493# Generate both light skeleton and libbpf skeleton for these 494LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 495 kfunc_call_test_subprog.c 496SKEL_BLACKLIST += $$(LSKELS) $$(LSKELS_SIGNED) 497 498test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 499linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 500linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 501linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 502# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 503# but that's created as a side-effect of the skel.h generation. 504test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 505test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 506test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 507xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 508xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 509xdp_features.skel.h-deps := xdp_features.bpf.o 510 511LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 512LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 513 514HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 515 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 516 bpf_endian.h \ 517 bpf_helpers.h \ 518 bpf_tracing.h) 519 520# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 521# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 522# Parameters: 523# $1 - test runner base binary name (e.g., test_progs) 524# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 525define DEFINE_TEST_RUNNER 526 527LSKEL_SIGN := -S -k $(PRIVATE_KEY) -i $(VERIFICATION_CERT) 528TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 529TRUNNER_BINARY := $1$(if $2,-)$2 530TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 531 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 532TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 533 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 534TRUNNER_LIB_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 535 $$(filter %.c,$(TRUNNER_LIB_SOURCES))) 536TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 537TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 538TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 539TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 540TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 541 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 542 $$(TRUNNER_BPF_SRCS))) 543TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 544TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 545TRUNNER_BPF_LSKELS_SIGNED := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS_SIGNED)) 546TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 547 548# Evaluate rules now with extra TRUNNER_XXX variables above already defined 549$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 550 551endef 552 553# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 554# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 555# $1 - test runner base binary name (e.g., test_progs) 556# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 557define DEFINE_TEST_RUNNER_RULES 558 559ifeq ($($(TRUNNER_OUTPUT)-dir),) 560$(TRUNNER_OUTPUT)-dir := y 561$(TRUNNER_OUTPUT): 562 $$(call msg,MKDIR,,$$@) 563 $(Q)mkdir -p $$@ 564endif 565 566# ensure we set up BPF objects generation rule just once for a given 567# input/output directory combination 568ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 569$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 570$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 571 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 572 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 573 $$(INCLUDE_DIR)/vmlinux.h \ 574 $(HEADERS_FOR_BPF_OBJS) \ 575 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 576 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 577 $(TRUNNER_BPF_CFLAGS) \ 578 $$($$<-CFLAGS) \ 579 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 580 581$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 582 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 583 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 584 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 585 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 586 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 587 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 588 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 589 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 590 591$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 592 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 593 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 594 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 595 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 596 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 597 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 598 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 599 600$(TRUNNER_BPF_LSKELS_SIGNED): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 601 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY) (signed),$$@) 602 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 603 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 604 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 605 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 606 $(Q)$$(BPFTOOL) gen skeleton $(LSKEL_SIGN) $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 607 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 608 609$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 610 611# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 612.SECONDEXPANSION: 613$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 614 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 615 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 616 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 617 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 618 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 619 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 620 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 621 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 622 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 623 624# When the compiler generates a %.d file, only skel basenames (not 625# full paths) are specified as prerequisites for corresponding %.o 626# file. vpath directives below instruct make to search for skel files 627# in TRUNNER_OUTPUT, if they are not present in the working directory. 628vpath %.skel.h $(TRUNNER_OUTPUT) 629vpath %.lskel.h $(TRUNNER_OUTPUT) 630vpath %.subskel.h $(TRUNNER_OUTPUT) 631 632endif 633 634# ensure we set up tests.h header generation rule just once 635ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 636$(TRUNNER_TESTS_DIR)-tests-hdr := y 637$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 638 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 639 $$(shell (echo '/* Generated header, do not edit */'; \ 640 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 641 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 642 ) > $$@) 643endif 644 645$(TRUNNER_OUTPUT)/resolve_btfids.test.o: $(RESOLVE_BTFIDS) $(TRUNNER_OUTPUT)/btf_data.bpf.o 646$(TRUNNER_OUTPUT)/resolve_btfids.test.o: private TEST_NEEDS_BTFIDS = 1 647 648# compile individual test files 649# Note: we cd into output directory to ensure embedded BPF object is found 650$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 651 $(TRUNNER_TESTS_DIR)/%.c \ 652 | $(TRUNNER_OUTPUT)/%.test.d 653 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 654 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 655 $$(if $$(TEST_NEEDS_BTFIDS), \ 656 $$(call msg,BTFIDS,$(TRUNNER_BINARY),$$@) \ 657 $(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@; \ 658 $(RESOLVE_BTFIDS) --patch_btfids $$@.BTF_ids $$@) 659 660$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 661 $(TRUNNER_TESTS_DIR)/%.c \ 662 $(TRUNNER_EXTRA_HDRS) \ 663 $(TRUNNER_BPF_SKELS) \ 664 $(TRUNNER_BPF_LSKELS) \ 665 $(TRUNNER_BPF_LSKELS_SIGNED) \ 666 $(TRUNNER_BPF_SKELS_LINKED) \ 667 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 668 669ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 670include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 671endif 672 673# add per extra obj CFGLAGS definitions 674$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 675 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 676 677$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 678 %.c \ 679 $(TRUNNER_EXTRA_HDRS) \ 680 $(VERIFY_SIG_HDR) \ 681 $(TRUNNER_TESTS_HDR) \ 682 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 683 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 684 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 685 686$(TRUNNER_LIB_OBJS): $(TRUNNER_OUTPUT)/%.o:$(TOOLSDIR)/lib/%.c 687 $$(call msg,LIB-OBJ,$(TRUNNER_BINARY),$$@) 688 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 689 690# non-flavored in-srctree builds receive special treatment, in particular, we 691# do not need to copy extra resources (see e.g. test_btf_dump_case()) 692$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 693ifneq ($2:$(OUTPUT),:$(shell pwd)) 694 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 695 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 696endif 697 698# some X.test.o files have runtime dependencies on Y.bpf.o files 699$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 700 701$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 702 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 703 $(TRUNNER_LIB_OBJS) \ 704 $(TRUNNER_BPFTOOL) \ 705 $(OUTPUT)/veristat \ 706 | $(TRUNNER_BINARY)-extras 707 $$(call msg,BINARY,,$$@) 708 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LLVM_LDLIBS) $$(LDFLAGS) $$(LLVM_LDFLAGS) -o $$@ 709 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 710 $(OUTPUT)/$(if $2,$2/)bpftool 711 712endef 713 714VERIFY_SIG_SETUP := $(CURDIR)/verify_sig_setup.sh 715VERIFY_SIG_HDR := verification_cert.h 716VERIFICATION_CERT := $(BUILD_DIR)/signing_key.der 717PRIVATE_KEY := $(BUILD_DIR)/signing_key.pem 718 719$(VERIFICATION_CERT) $(PRIVATE_KEY): $(VERIFY_SIG_SETUP) 720 $(Q)mkdir -p $(BUILD_DIR) 721 $(Q)$(VERIFY_SIG_SETUP) genkey $(BUILD_DIR) 722 723# Generates a header with C array declaration, containing test_progs_verification_cert bytes 724$(VERIFY_SIG_HDR): $(VERIFICATION_CERT) 725 $(Q)(echo "unsigned char test_progs_verification_cert[] = {"; \ 726 hexdump -v -e '12/1 " 0x%02x," "\n"' $< | sed 's/0x ,//g; $$s/,$$//'; \ 727 echo "};"; \ 728 echo "unsigned int test_progs_verification_cert_len = $$(wc -c < $<);") > $@ 729 730# Define test_progs test runner. 731TRUNNER_TESTS_DIR := prog_tests 732TRUNNER_BPF_PROGS_DIR := progs 733TRUNNER_EXTRA_SOURCES := test_progs.c \ 734 cgroup_helpers.c \ 735 trace_helpers.c \ 736 network_helpers.c \ 737 testing_helpers.c \ 738 btf_helpers.c \ 739 cap_helpers.c \ 740 unpriv_helpers.c \ 741 netlink_helpers.c \ 742 jit_disasm_helpers.c \ 743 io_helpers.c \ 744 test_loader.c \ 745 xsk.c \ 746 disasm.c \ 747 disasm_helpers.c \ 748 json_writer.c \ 749 $(VERIFY_SIG_HDR) \ 750 flow_dissector_load.h \ 751 ip_check_defrag_frags.h \ 752 bpftool_helpers.c 753TRUNNER_LIB_SOURCES := find_bit.c 754TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ 755 $(OUTPUT)/liburandom_read.so \ 756 $(OUTPUT)/xdp_synproxy \ 757 $(OUTPUT)/sign-file \ 758 $(OUTPUT)/uprobe_multi \ 759 $(TEST_KMOD_TARGETS) \ 760 ima_setup.sh \ 761 $(VERIFY_SIG_SETUP) \ 762 $(wildcard progs/btf_dump_test_case_*.c) \ 763 $(wildcard progs/*.bpf.o) 764TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 765TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 766$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 767 768# Define test_progs-no_alu32 test runner. 769TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 770TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 771$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 772 773# Define test_progs-cpuv4 test runner. 774ifneq ($(CLANG_CPUV4),) 775TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 776TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 777$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 778endif 779 780# Define test_progs BPF-GCC-flavored test runner. 781ifneq ($(BPF_GCC),) 782TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 783TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 784$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 785endif 786 787# Define test_maps test runner. 788TRUNNER_TESTS_DIR := map_tests 789TRUNNER_BPF_PROGS_DIR := progs 790TRUNNER_EXTRA_SOURCES := test_maps.c 791TRUNNER_LIB_SOURCES := 792TRUNNER_EXTRA_FILES := 793TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 794TRUNNER_BPF_CFLAGS := 795$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 796 797# Define test_verifier test runner. 798# It is much simpler than test_maps/test_progs and sufficiently different from 799# them (e.g., test.h is using completely pattern), that it's worth just 800# explicitly defining all the rules explicitly. 801verifier/tests.h: verifier/*.c 802 $(shell ( cd verifier/; \ 803 echo '/* Generated header, do not edit */'; \ 804 echo '#ifdef FILL_ARRAY'; \ 805 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 806 echo '#endif' \ 807 ) > verifier/tests.h) 808$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 809 $(call msg,BINARY,,$@) 810 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 811 812# Include find_bit.c to compile xskxceiver. 813EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c prog_tests/test_xsk.c prog_tests/test_xsk.h 814$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 815 $(call msg,BINARY,,$@) 816 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 817 818$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 819 $(call msg,BINARY,,$@) 820 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 821 822$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 823 $(call msg,BINARY,,$@) 824 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 825 826# Make sure we are able to include and link libbpf against c++. 827CXXFLAGS += $(CFLAGS) 828CXXFLAGS := $(subst -D_GNU_SOURCE=,,$(CXXFLAGS)) 829CXXFLAGS := $(subst -std=gnu11,-std=gnu++11,$(CXXFLAGS)) 830$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 831 $(call msg,CXX,,$@) 832 $(Q)$(CXX) $(CXXFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 833 834# Benchmark runner 835$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 836 $(call msg,CC,,$@) 837 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 838$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 839$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 840$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 841 $(OUTPUT)/perfbuf_bench.skel.h 842$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 843$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 844$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 845$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 846$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 847$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 848$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 849$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 850$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 851$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 852$(OUTPUT)/bench_sockmap.o: $(OUTPUT)/bench_sockmap_prog.skel.h 853$(OUTPUT)/bench_lpm_trie_map.o: $(OUTPUT)/lpm_trie_bench.skel.h $(OUTPUT)/lpm_trie_map.skel.h 854$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 855$(OUTPUT)/bench: LDLIBS += -lm 856$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 857 $(TESTING_HELPERS) \ 858 $(TRACE_HELPERS) \ 859 $(CGROUP_HELPERS) \ 860 $(OUTPUT)/bench_count.o \ 861 $(OUTPUT)/bench_rename.o \ 862 $(OUTPUT)/bench_trigger.o \ 863 $(OUTPUT)/bench_ringbufs.o \ 864 $(OUTPUT)/bench_bloom_filter_map.o \ 865 $(OUTPUT)/bench_bpf_loop.o \ 866 $(OUTPUT)/bench_strncmp.o \ 867 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 868 $(OUTPUT)/bench_local_storage.o \ 869 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 870 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 871 $(OUTPUT)/bench_local_storage_create.o \ 872 $(OUTPUT)/bench_htab_mem.o \ 873 $(OUTPUT)/bench_bpf_crypto.o \ 874 $(OUTPUT)/bench_sockmap.o \ 875 $(OUTPUT)/bench_lpm_trie_map.o \ 876 # 877 $(call msg,BINARY,,$@) 878 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 879 880# This works around GCC warning about snprintf truncating strings like: 881# 882# char a[PATH_MAX], b[PATH_MAX]; 883# snprintf(a, "%s/foo", b); // triggers -Wformat-truncation 884$(OUTPUT)/veristat.o: CFLAGS += -Wno-format-truncation 885$(OUTPUT)/veristat.o: $(BPFOBJ) 886$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 887 $(call msg,BINARY,,$@) 888 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 889 890# Linking uprobe_multi can fail due to relocation overflows on mips. 891$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 892$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 893 $(call msg,BINARY,,$@) 894 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 895 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 896 897EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 898 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 899 feature bpftool $(TEST_KMOD_TARGETS) \ 900 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 901 *.BTF *.BTF_ids *.BTF.base \ 902 no_alu32 cpuv4 bpf_gcc \ 903 liburandom_read.so) \ 904 $(OUTPUT)/FEATURE-DUMP.selftests 905 906.PHONY: docs docs-clean 907 908# Delete partially updated (corrupted) files on error 909.DELETE_ON_ERROR: 910 911DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 912override define INSTALL_RULE 913 $(DEFAULT_INSTALL_RULE) 914 @for DIR in $(TEST_INST_SUBDIRS); do \ 915 mkdir -p $(INSTALL_PATH)/$$DIR; \ 916 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 917 done 918endef 919