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