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