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