1# SPDX-License-Identifier: GPL-2.0 2include ../../../build/Build.include 3include ../../../scripts/Makefile.arch 4include ../../../scripts/Makefile.include 5 6CXX ?= $(CROSS_COMPILE)g++ 7 8CURDIR := $(abspath .) 9TOOLSDIR := $(abspath ../../..) 10LIBDIR := $(TOOLSDIR)/lib 11BPFDIR := $(LIBDIR)/bpf 12TOOLSINCDIR := $(TOOLSDIR)/include 13TOOLSARCHINCDIR := $(TOOLSDIR)/arch/$(SRCARCH)/include 14BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool 15APIDIR := $(TOOLSINCDIR)/uapi 16ifneq ($(O),) 17GENDIR := $(O)/include/generated 18else 19GENDIR := $(abspath ../../../../include/generated) 20endif 21GENHDR := $(GENDIR)/autoconf.h 22PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config 23 24ifneq ($(wildcard $(GENHDR)),) 25 GENFLAGS := -DHAVE_GENHDR 26endif 27 28BPF_GCC ?= $(shell command -v bpf-gcc;) 29SAN_CFLAGS ?= 30SAN_LDFLAGS ?= $(SAN_CFLAGS) 31RELEASE ?= 32OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0) 33 34LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null) 35LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) 36 37SKIP_DOCS ?= 38SKIP_LLVM ?= 39 40ifeq ($(srctree),) 41srctree := $(patsubst %/,%,$(dir $(CURDIR))) 42srctree := $(patsubst %/,%,$(dir $(srctree))) 43srctree := $(patsubst %/,%,$(dir $(srctree))) 44srctree := $(patsubst %/,%,$(dir $(srctree))) 45endif 46 47CFLAGS += -g $(OPT_FLAGS) -rdynamic -std=gnu11 \ 48 -Wall -Werror -fno-omit-frame-pointer \ 49 -Wno-unused-but-set-variable \ 50 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ 51 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 52 -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT) 53LDFLAGS += $(SAN_LDFLAGS) 54LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread 55 56PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") 57PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) 58LDLIBS += $(PCAP_LIBS) 59CFLAGS += $(PCAP_CFLAGS) 60 61# Some utility functions use LLVM libraries 62jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS) 63 64ifneq ($(LLVM),) 65# Silence some warnings when compiled with clang 66CFLAGS += -Wno-unused-command-line-argument 67endif 68 69# Check whether bpf cpu=v4 is supported or not by clang 70ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),) 71CLANG_CPUV4 := 1 72endif 73 74# Order correspond to 'make run_tests' order 75TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \ 76 test_sockmap \ 77 test_tcpnotify_user \ 78 test_progs-no_alu32 79TEST_INST_SUBDIRS := no_alu32 80 81# Also test bpf-gcc, if present 82ifneq ($(BPF_GCC),) 83TEST_GEN_PROGS += test_progs-bpf_gcc 84TEST_INST_SUBDIRS += bpf_gcc 85 86# The following tests contain C code that, although technically legal, 87# triggers GCC warnings that cannot be disabled: declaration of 88# anonymous struct types in function parameter lists. 89progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error 90progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error 91progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error 92progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error 93progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error 94 95endif 96 97ifneq ($(CLANG_CPUV4),) 98TEST_GEN_PROGS += test_progs-cpuv4 99TEST_INST_SUBDIRS += cpuv4 100endif 101 102TEST_GEN_FILES = test_tc_edt.bpf.o 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_tc_edt.sh \ 109 test_xdping.sh \ 110 test_bpftool_build.sh \ 111 test_bpftool.sh \ 112 test_bpftool_map.sh \ 113 test_bpftool_metadata.sh \ 114 test_doc_build.sh \ 115 test_xsk.sh \ 116 test_xdp_features.sh 117 118TEST_PROGS_EXTENDED := \ 119 ima_setup.sh verify_sig_setup.sh \ 120 test_bpftool.py 121 122TEST_KMODS := bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \ 123 bpf_test_modorder_y.ko bpf_test_rqspinlock.ko 124TEST_KMOD_TARGETS = $(addprefix $(OUTPUT)/,$(TEST_KMODS)) 125 126# Compile but not part of 'make run_tests' 127TEST_GEN_PROGS_EXTENDED = \ 128 bench \ 129 flow_dissector_load \ 130 runqslower \ 131 test_cpp \ 132 test_lirc_mode2_user \ 133 veristat \ 134 xdp_features \ 135 xdp_hw_metadata \ 136 xdp_synproxy \ 137 xdping \ 138 xskxceiver 139 140TEST_GEN_FILES += $(TEST_KMODS) liburandom_read.so urandom_read sign-file uprobe_multi 141 142ifneq ($(V),1) 143submake_extras := feature_display=0 144endif 145 146# override lib.mk's default rules 147OVERRIDE_TARGETS := 1 148override define CLEAN 149 $(call msg,CLEAN) 150 $(Q)$(RM) -r $(TEST_GEN_PROGS) 151 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 152 $(Q)$(RM) -r $(TEST_GEN_FILES) 153 $(Q)$(RM) -r $(TEST_KMODS) 154 $(Q)$(RM) -r $(EXTRA_CLEAN) 155 $(Q)$(MAKE) -C test_kmods clean 156 $(Q)$(MAKE) docs-clean 157endef 158 159include ../lib.mk 160 161NON_CHECK_FEAT_TARGETS := clean docs-clean 162CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 163ifneq ($(CHECK_FEAT),) 164FEATURE_USER := .selftests 165FEATURE_TESTS := llvm 166FEATURE_DISPLAY := $(FEATURE_TESTS) 167 168# Makefile.feature expects OUTPUT to end with a slash 169ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 170$(let OUTPUT,$(OUTPUT)/,\ 171 $(eval include ../../../build/Makefile.feature)) 172else 173override OUTPUT := $(OUTPUT)/ 174$(eval include ../../../build/Makefile.feature) 175override OUTPUT := $(patsubst %/,%,$(OUTPUT)) 176endif 177endif 178 179ifneq ($(SKIP_LLVM),1) 180ifeq ($(feature-llvm),1) 181 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 182 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 183 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 184 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 185 # Prefer linking statically if it's available, otherwise fallback to shared 186 ifeq ($(shell $(LLVM_CONFIG) --link-static --libs >/dev/null 2>&1 && echo static),static) 187 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 188 LLVM_LDLIBS += $(filter-out -lxml2,$(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))) 189 LLVM_LDLIBS += -lstdc++ 190 else 191 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-shared --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 192 endif 193 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 194endif 195endif 196 197SCRATCH_DIR := $(OUTPUT)/tools 198BUILD_DIR := $(SCRATCH_DIR)/build 199INCLUDE_DIR := $(SCRATCH_DIR)/include 200BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 201ifneq ($(CROSS_COMPILE),) 202HOST_BUILD_DIR := $(BUILD_DIR)/host 203HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 204HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 205else 206HOST_BUILD_DIR := $(BUILD_DIR) 207HOST_SCRATCH_DIR := $(SCRATCH_DIR) 208HOST_INCLUDE_DIR := $(INCLUDE_DIR) 209endif 210HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 211RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 212RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 213 214VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 215 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 216 ../../../../vmlinux \ 217 /sys/kernel/btf/vmlinux \ 218 /boot/vmlinux-$(shell uname -r) 219VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 220ifeq ($(VMLINUX_BTF),) 221$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 222endif 223 224# Define simple and short `make test_progs`, `make test_maps`, etc targets 225# to build individual tests. 226# NOTE: Semicolon at the end is critical to override lib.mk's default static 227# rule for binaries. 228$(notdir $(TEST_GEN_PROGS) $(TEST_KMODS) \ 229 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ; 230 231# sort removes libbpf duplicates when not cross-building 232MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 233 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ 234 $(HOST_BUILD_DIR)/resolve_btfids \ 235 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 236$(MAKE_DIRS): 237 $(call msg,MKDIR,,$@) 238 $(Q)mkdir -p $@ 239 240$(OUTPUT)/%.o: %.c 241 $(call msg,CC,,$@) 242 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 243 244$(OUTPUT)/%:%.c 245 $(call msg,BINARY,,$@) 246 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 247 248# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 249ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) 250LLD := lld 251else 252LLD := $(shell command -v $(LD)) 253endif 254 255# Filter out -static for liburandom_read.so and its dependent targets so that static builds 256# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 257$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map 258 $(call msg,LIB,,$@) 259 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 260 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 261 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ 262 -Wno-unused-command-line-argument \ 263 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 264 -Wl,--version-script=liburandom_read.map \ 265 -fPIC -shared -o $@ 266 267$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 268 $(call msg,BINARY,,$@) 269 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 270 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 271 -Wno-unused-command-line-argument \ 272 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 273 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 274 -Wl,-rpath=. -o $@ 275 276$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 277 $(call msg,SIGN-FILE,,$@) 278 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 279 $< -o $@ \ 280 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 281 282# This should really be a grouped target, but make versions before 4.3 don't 283# support that for regular rules. However, pattern matching rules are implicitly 284# treated as grouped even with older versions of make, so as a workaround, the 285# subst() turns the rule into a pattern matching rule 286$(addprefix test_kmods/,$(subst .ko,%ko,$(TEST_KMODS))): $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard test_kmods/Makefile test_kmods/*.[ch]) 287 $(Q)$(RM) test_kmods/*.ko test_kmods/*.mod.o # force re-compilation 288 $(Q)$(MAKE) $(submake_extras) -C test_kmods \ 289 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 290 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 291 292$(TEST_KMOD_TARGETS): $(addprefix test_kmods/,$(TEST_KMODS)) 293 $(call msg,MOD,,$@) 294 $(Q)cp test_kmods/$(@F) $@ 295 296 297DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 298ifneq ($(CROSS_COMPILE),) 299CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 300TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 301USE_BOOTSTRAP := "" 302else 303TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 304USE_BOOTSTRAP := "bootstrap/" 305endif 306 307$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 308 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 309 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 310 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 311 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ 312 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 313 BPF_TARGET_ENDIAN=$(BPF_TARGET_ENDIAN) \ 314 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 315 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' && \ 316 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 317 318TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 319 320$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 321 322TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 323CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 324UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 325TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 326JSON_WRITER := $(OUTPUT)/json_writer.o 327CAP_HELPERS := $(OUTPUT)/cap_helpers.o 328NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 329 330$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 331$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 332$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 333$(OUTPUT)/test_tag: $(TESTING_HELPERS) 334$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 335$(OUTPUT)/xdping: $(TESTING_HELPERS) 336$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 337$(OUTPUT)/test_maps: $(TESTING_HELPERS) 338$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 339$(OUTPUT)/xsk.o: $(BPFOBJ) 340 341BPFTOOL ?= $(DEFAULT_BPFTOOL) 342$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 343 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 344 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 345 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 346 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 347 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 348 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 349 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 350 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 351 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 352 353ifneq ($(CROSS_COMPILE),) 354$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 355 $(BPFOBJ) | $(BUILD_DIR)/bpftool 356 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 357 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 358 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 359 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 360 OUTPUT=$(BUILD_DIR)/bpftool/ \ 361 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 362 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 363 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 364endif 365 366ifneq ($(SKIP_DOCS),1) 367all: docs 368endif 369 370docs: 371 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 372 -f Makefile.docs \ 373 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 374 375docs-clean: 376 $(Q)$(MAKE) $(submake_extras) \ 377 -f Makefile.docs \ 378 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 379 380$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 381 $(APIDIR)/linux/bpf.h \ 382 | $(BUILD_DIR)/libbpf 383 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 384 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 385 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' \ 386 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 387 388ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 389$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 390 $(APIDIR)/linux/bpf.h \ 391 | $(HOST_BUILD_DIR)/libbpf 392 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 393 ARCH= CROSS_COMPILE= \ 394 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 395 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 396 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 397 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 398 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 399endif 400 401# vmlinux.h is first dumped to a temporary file and then compared to 402# the previous version. This helps to avoid unnecessary re-builds of 403# $(TRUNNER_BPF_OBJS) 404$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 405ifeq ($(VMLINUX_H),) 406 $(call msg,GEN,,$@) 407 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 408 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 409else 410 $(call msg,CP,,$@) 411 $(Q)cp "$(VMLINUX_H)" $@ 412endif 413 414$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 415 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 416 $(TOOLSDIR)/lib/rbtree.c \ 417 $(TOOLSDIR)/lib/zalloc.c \ 418 $(TOOLSDIR)/lib/string.c \ 419 $(TOOLSDIR)/lib/ctype.c \ 420 $(TOOLSDIR)/lib/str_error_r.c 421 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 422 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 423 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 424 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 425 426# Get Clang's default includes on this system, as opposed to those seen by 427# '--target=bpf'. This fixes "missing" files on some architectures/distros, 428# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 429# 430# Use '-idirafter': Don't interfere with include mechanics except where the 431# build would have failed anyways. 432define get_sys_includes 433$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 434 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 435$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 436$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 437$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 438endef 439 440# Determine target endianness. 441IS_LITTLE_ENDIAN := $(shell $(CC) -dM -E - </dev/null | \ 442 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 443MENDIAN:=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 444BPF_TARGET_ENDIAN:=$(if $(IS_LITTLE_ENDIAN),--target=bpfel,--target=bpfeb) 445 446ifneq ($(CROSS_COMPILE),) 447CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 448endif 449 450CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 451BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 452 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 453 -I$(abspath $(OUTPUT)/../usr/include) \ 454 -std=gnu11 \ 455 -fno-strict-aliasing \ 456 -Wno-compare-distinct-pointer-types \ 457 -Wno-initializer-overrides \ 458 # 459# TODO: enable me -Wsign-compare 460 461CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 462 463$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 464$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 465 466$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 467$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 468 469# Build BPF object using Clang 470# $1 - input .c file 471# $2 - output .o file 472# $3 - CFLAGS 473# $4 - binary name 474define CLANG_BPF_BUILD_RULE 475 $(call msg,CLNG-BPF,$4,$2) 476 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2 477endef 478# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 479define CLANG_NOALU32_BPF_BUILD_RULE 480 $(call msg,CLNG-BPF,$4,$2) 481 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2 482endef 483# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 484define CLANG_CPUV4_BPF_BUILD_RULE 485 $(call msg,CLNG-BPF,$4,$2) 486 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2 487endef 488# Build BPF object using GCC 489define GCC_BPF_BUILD_RULE 490 $(call msg,GCC-BPF,$4,$2) 491 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 492endef 493 494SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 495 496LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 497 linked_vars.skel.h linked_maps.skel.h \ 498 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 499 test_usdt.skel.h 500 501LSKELS := fexit_sleep.c trace_printk.c trace_vprintk.c map_ptr_kern.c \ 502 core_kern.c core_kern_overflow.c test_ringbuf.c \ 503 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c \ 504 test_ringbuf_overwrite.c 505 506LSKELS_SIGNED := fentry_test.c fexit_test.c atomics.c 507 508# Generate both light skeleton and libbpf skeleton for these 509LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 510 kfunc_call_test_subprog.c 511SKEL_BLACKLIST += $$(LSKELS) $$(LSKELS_SIGNED) 512 513test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 514linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 515linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 516linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 517# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 518# but that's created as a side-effect of the skel.h generation. 519test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 520test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 521test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 522xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 523xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 524xdp_features.skel.h-deps := xdp_features.bpf.o 525 526LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 527LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 528 529HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 530 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 531 bpf_endian.h \ 532 bpf_helpers.h \ 533 bpf_tracing.h) 534 535# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 536# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 537# Parameters: 538# $1 - test runner base binary name (e.g., test_progs) 539# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 540define DEFINE_TEST_RUNNER 541 542LSKEL_SIGN := -S -k $(PRIVATE_KEY) -i $(VERIFICATION_CERT) 543TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 544TRUNNER_BINARY := $1$(if $2,-)$2 545TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 546 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 547TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 548 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 549TRUNNER_LIB_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 550 $$(filter %.c,$(TRUNNER_LIB_SOURCES))) 551TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 552TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 553TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 554TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 555TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 556 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 557 $$(TRUNNER_BPF_SRCS))) 558TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 559TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 560TRUNNER_BPF_LSKELS_SIGNED := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS_SIGNED)) 561TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 562 563# Evaluate rules now with extra TRUNNER_XXX variables above already defined 564$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 565 566endef 567 568# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 569# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 570# $1 - test runner base binary name (e.g., test_progs) 571# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 572define DEFINE_TEST_RUNNER_RULES 573 574ifeq ($($(TRUNNER_OUTPUT)-dir),) 575$(TRUNNER_OUTPUT)-dir := y 576$(TRUNNER_OUTPUT): 577 $$(call msg,MKDIR,,$$@) 578 $(Q)mkdir -p $$@ 579endif 580 581# ensure we set up BPF objects generation rule just once for a given 582# input/output directory combination 583ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 584$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 585$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 586 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 587 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 588 $$(INCLUDE_DIR)/vmlinux.h \ 589 $(HEADERS_FOR_BPF_OBJS) \ 590 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 591 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 592 $(TRUNNER_BPF_CFLAGS) \ 593 $$($$<-CFLAGS) \ 594 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 595 596$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 597 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 598 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 599 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 600 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 601 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 602 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 603 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 604 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 605 606$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 607 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 608 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 609 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 610 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 611 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 612 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 613 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 614 615$(TRUNNER_BPF_LSKELS_SIGNED): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 616 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY) (signed),$$@) 617 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 618 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 619 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 620 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 621 $(Q)$$(BPFTOOL) gen skeleton $(LSKEL_SIGN) $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 622 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 623 624$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 625 626# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 627.SECONDEXPANSION: 628$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 629 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 630 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 631 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 632 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 633 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 634 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 635 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 636 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 637 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 638 639# When the compiler generates a %.d file, only skel basenames (not 640# full paths) are specified as prerequisites for corresponding %.o 641# file. vpath directives below instruct make to search for skel files 642# in TRUNNER_OUTPUT, if they are not present in the working directory. 643vpath %.skel.h $(TRUNNER_OUTPUT) 644vpath %.lskel.h $(TRUNNER_OUTPUT) 645vpath %.subskel.h $(TRUNNER_OUTPUT) 646 647endif 648 649# ensure we set up tests.h header generation rule just once 650ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 651$(TRUNNER_TESTS_DIR)-tests-hdr := y 652$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 653 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 654 $$(shell (echo '/* Generated header, do not edit */'; \ 655 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 656 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 657 ) > $$@) 658endif 659 660# compile individual test files 661# Note: we cd into output directory to ensure embedded BPF object is found 662$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 663 $(TRUNNER_TESTS_DIR)/%.c \ 664 | $(TRUNNER_OUTPUT)/%.test.d 665 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 666 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 667 668$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 669 $(TRUNNER_TESTS_DIR)/%.c \ 670 $(TRUNNER_EXTRA_HDRS) \ 671 $(TRUNNER_BPF_SKELS) \ 672 $(TRUNNER_BPF_LSKELS) \ 673 $(TRUNNER_BPF_LSKELS_SIGNED) \ 674 $(TRUNNER_BPF_SKELS_LINKED) \ 675 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 676 677ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 678include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 679endif 680 681# add per extra obj CFGLAGS definitions 682$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 683 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 684 685$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 686 %.c \ 687 $(TRUNNER_EXTRA_HDRS) \ 688 $(VERIFY_SIG_HDR) \ 689 $(TRUNNER_TESTS_HDR) \ 690 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 691 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 692 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 693 694$(TRUNNER_LIB_OBJS): $(TRUNNER_OUTPUT)/%.o:$(TOOLSDIR)/lib/%.c 695 $$(call msg,LIB-OBJ,$(TRUNNER_BINARY),$$@) 696 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 697 698# non-flavored in-srctree builds receive special treatment, in particular, we 699# do not need to copy extra resources (see e.g. test_btf_dump_case()) 700$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 701ifneq ($2:$(OUTPUT),:$(shell pwd)) 702 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 703 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 704endif 705 706# some X.test.o files have runtime dependencies on Y.bpf.o files 707$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 708 709$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 710 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 711 $(TRUNNER_LIB_OBJS) \ 712 $(RESOLVE_BTFIDS) \ 713 $(TRUNNER_BPFTOOL) \ 714 $(OUTPUT)/veristat \ 715 | $(TRUNNER_BINARY)-extras 716 $$(call msg,BINARY,,$$@) 717 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LLVM_LDLIBS) $$(LDFLAGS) $$(LLVM_LDFLAGS) -o $$@ 718 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 719 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 720 $(OUTPUT)/$(if $2,$2/)bpftool 721 722endef 723 724VERIFY_SIG_SETUP := $(CURDIR)/verify_sig_setup.sh 725VERIFY_SIG_HDR := verification_cert.h 726VERIFICATION_CERT := $(BUILD_DIR)/signing_key.der 727PRIVATE_KEY := $(BUILD_DIR)/signing_key.pem 728 729$(VERIFICATION_CERT) $(PRIVATE_KEY): $(VERIFY_SIG_SETUP) 730 $(Q)mkdir -p $(BUILD_DIR) 731 $(Q)$(VERIFY_SIG_SETUP) genkey $(BUILD_DIR) 732 733$(VERIFY_SIG_HDR): $(VERIFICATION_CERT) 734 $(Q)ln -fs $< test_progs_verification_cert && \ 735 xxd -i test_progs_verification_cert > $@ 736 737# Define test_progs test runner. 738TRUNNER_TESTS_DIR := prog_tests 739TRUNNER_BPF_PROGS_DIR := progs 740TRUNNER_EXTRA_SOURCES := test_progs.c \ 741 cgroup_helpers.c \ 742 trace_helpers.c \ 743 network_helpers.c \ 744 testing_helpers.c \ 745 btf_helpers.c \ 746 cap_helpers.c \ 747 unpriv_helpers.c \ 748 netlink_helpers.c \ 749 jit_disasm_helpers.c \ 750 io_helpers.c \ 751 test_loader.c \ 752 xsk.c \ 753 disasm.c \ 754 disasm_helpers.c \ 755 json_writer.c \ 756 $(VERIFY_SIG_HDR) \ 757 flow_dissector_load.h \ 758 ip_check_defrag_frags.h 759TRUNNER_LIB_SOURCES := find_bit.c 760TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ 761 $(OUTPUT)/liburandom_read.so \ 762 $(OUTPUT)/xdp_synproxy \ 763 $(OUTPUT)/sign-file \ 764 $(OUTPUT)/uprobe_multi \ 765 $(TEST_KMOD_TARGETS) \ 766 ima_setup.sh \ 767 $(VERIFY_SIG_SETUP) \ 768 $(wildcard progs/btf_dump_test_case_*.c) \ 769 $(wildcard progs/*.bpf.o) 770TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 771TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 772$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 773 774# Define test_progs-no_alu32 test runner. 775TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 776TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 777$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 778 779# Define test_progs-cpuv4 test runner. 780ifneq ($(CLANG_CPUV4),) 781TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 782TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 783$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 784endif 785 786# Define test_progs BPF-GCC-flavored test runner. 787ifneq ($(BPF_GCC),) 788TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 789TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 790$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 791endif 792 793# Define test_maps test runner. 794TRUNNER_TESTS_DIR := map_tests 795TRUNNER_BPF_PROGS_DIR := progs 796TRUNNER_EXTRA_SOURCES := test_maps.c 797TRUNNER_LIB_SOURCES := 798TRUNNER_EXTRA_FILES := 799TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 800TRUNNER_BPF_CFLAGS := 801$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 802 803# Define test_verifier test runner. 804# It is much simpler than test_maps/test_progs and sufficiently different from 805# them (e.g., test.h is using completely pattern), that it's worth just 806# explicitly defining all the rules explicitly. 807verifier/tests.h: verifier/*.c 808 $(shell ( cd verifier/; \ 809 echo '/* Generated header, do not edit */'; \ 810 echo '#ifdef FILL_ARRAY'; \ 811 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 812 echo '#endif' \ 813 ) > verifier/tests.h) 814$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 815 $(call msg,BINARY,,$@) 816 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 817 818# Include find_bit.c to compile xskxceiver. 819EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c prog_tests/test_xsk.c prog_tests/test_xsk.h 820$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 821 $(call msg,BINARY,,$@) 822 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 823 824$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 825 $(call msg,BINARY,,$@) 826 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 827 828$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 829 $(call msg,BINARY,,$@) 830 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 831 832# Make sure we are able to include and link libbpf against c++. 833CXXFLAGS += $(CFLAGS) 834CXXFLAGS := $(subst -D_GNU_SOURCE=,,$(CXXFLAGS)) 835CXXFLAGS := $(subst -std=gnu11,-std=gnu++11,$(CXXFLAGS)) 836$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 837 $(call msg,CXX,,$@) 838 $(Q)$(CXX) $(CXXFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 839 840# Benchmark runner 841$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 842 $(call msg,CC,,$@) 843 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 844$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 845$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 846$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 847 $(OUTPUT)/perfbuf_bench.skel.h 848$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 849$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 850$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 851$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 852$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 853$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 854$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 855$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 856$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 857$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 858$(OUTPUT)/bench_sockmap.o: $(OUTPUT)/bench_sockmap_prog.skel.h 859$(OUTPUT)/bench_lpm_trie_map.o: $(OUTPUT)/lpm_trie_bench.skel.h $(OUTPUT)/lpm_trie_map.skel.h 860$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 861$(OUTPUT)/bench: LDLIBS += -lm 862$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 863 $(TESTING_HELPERS) \ 864 $(TRACE_HELPERS) \ 865 $(CGROUP_HELPERS) \ 866 $(OUTPUT)/bench_count.o \ 867 $(OUTPUT)/bench_rename.o \ 868 $(OUTPUT)/bench_trigger.o \ 869 $(OUTPUT)/bench_ringbufs.o \ 870 $(OUTPUT)/bench_bloom_filter_map.o \ 871 $(OUTPUT)/bench_bpf_loop.o \ 872 $(OUTPUT)/bench_strncmp.o \ 873 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 874 $(OUTPUT)/bench_local_storage.o \ 875 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 876 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 877 $(OUTPUT)/bench_local_storage_create.o \ 878 $(OUTPUT)/bench_htab_mem.o \ 879 $(OUTPUT)/bench_bpf_crypto.o \ 880 $(OUTPUT)/bench_sockmap.o \ 881 $(OUTPUT)/bench_lpm_trie_map.o \ 882 # 883 $(call msg,BINARY,,$@) 884 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 885 886# This works around GCC warning about snprintf truncating strings like: 887# 888# char a[PATH_MAX], b[PATH_MAX]; 889# snprintf(a, "%s/foo", b); // triggers -Wformat-truncation 890$(OUTPUT)/veristat.o: CFLAGS += -Wno-format-truncation 891$(OUTPUT)/veristat.o: $(BPFOBJ) 892$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 893 $(call msg,BINARY,,$@) 894 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 895 896# Linking uprobe_multi can fail due to relocation overflows on mips. 897$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 898$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 899 $(call msg,BINARY,,$@) 900 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 901 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 902 903EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 904 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 905 feature bpftool $(TEST_KMOD_TARGETS) \ 906 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 907 no_alu32 cpuv4 bpf_gcc \ 908 liburandom_read.so) \ 909 $(OUTPUT)/FEATURE-DUMP.selftests \ 910 test_progs_verification_cert 911 912.PHONY: docs docs-clean 913 914# Delete partially updated (corrupted) files on error 915.DELETE_ON_ERROR: 916 917DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 918override define INSTALL_RULE 919 $(DEFAULT_INSTALL_RULE) 920 @for DIR in $(TEST_INST_SUBDIRS); do \ 921 mkdir -p $(INSTALL_PATH)/$$DIR; \ 922 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 923 done 924endef 925