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 $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) 36 37ifeq ($(srctree),) 38srctree := $(patsubst %/,%,$(dir $(CURDIR))) 39srctree := $(patsubst %/,%,$(dir $(srctree))) 40srctree := $(patsubst %/,%,$(dir $(srctree))) 41srctree := $(patsubst %/,%,$(dir $(srctree))) 42endif 43 44CFLAGS += -g $(OPT_FLAGS) -rdynamic -std=gnu11 \ 45 -Wall -Werror -fno-omit-frame-pointer \ 46 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ 47 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 48 -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT) 49LDFLAGS += $(SAN_LDFLAGS) 50LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread 51 52PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") 53PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) 54LDLIBS += $(PCAP_LIBS) 55CFLAGS += $(PCAP_CFLAGS) 56 57# Some utility functions use LLVM libraries 58jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS) 59 60ifneq ($(LLVM),) 61# Silence some warnings when compiled with clang 62CFLAGS += -Wno-unused-command-line-argument 63endif 64 65# Check whether bpf cpu=v4 is supported or not by clang 66ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),) 67CLANG_CPUV4 := 1 68endif 69 70# Order correspond to 'make run_tests' order 71TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \ 72 test_sockmap \ 73 test_tcpnotify_user test_sysctl \ 74 test_progs-no_alu32 75TEST_INST_SUBDIRS := no_alu32 76 77# Also test bpf-gcc, if present 78ifneq ($(BPF_GCC),) 79TEST_GEN_PROGS += test_progs-bpf_gcc 80TEST_INST_SUBDIRS += bpf_gcc 81 82# The following tests contain C code that, although technically legal, 83# triggers GCC warnings that cannot be disabled: declaration of 84# anonymous struct types in function parameter lists. 85progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error 86progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error 87progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error 88progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error 89progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error 90 91endif 92 93ifneq ($(CLANG_CPUV4),) 94TEST_GEN_PROGS += test_progs-cpuv4 95TEST_INST_SUBDIRS += cpuv4 96endif 97 98TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o 99TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 100 101# Order correspond to 'make run_tests' order 102TEST_PROGS := test_kmod.sh \ 103 test_xdp_redirect_multi.sh \ 104 test_tunnel.sh \ 105 test_lwt_seg6local.sh \ 106 test_lirc_mode2.sh \ 107 test_xdp_vlan_mode_generic.sh \ 108 test_xdp_vlan_mode_native.sh \ 109 test_lwt_ip_encap.sh \ 110 test_tc_tunnel.sh \ 111 test_tc_edt.sh \ 112 test_xdping.sh \ 113 test_bpftool_build.sh \ 114 test_bpftool.sh \ 115 test_bpftool_metadata.sh \ 116 test_doc_build.sh \ 117 test_xsk.sh \ 118 test_xdp_features.sh 119 120TEST_PROGS_EXTENDED := with_addr.sh \ 121 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 122 test_xdp_vlan.sh test_bpftool.py 123 124TEST_KMODS := bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \ 125 bpf_test_modorder_y.ko 126TEST_KMOD_TARGETS = $(addprefix $(OUTPUT)/,$(TEST_KMODS)) 127 128# Compile but not part of 'make run_tests' 129TEST_GEN_PROGS_EXTENDED = \ 130 bench \ 131 flow_dissector_load \ 132 runqslower \ 133 test_cpp \ 134 test_lirc_mode2_user \ 135 veristat \ 136 xdp_features \ 137 xdp_hw_metadata \ 138 xdp_redirect_multi \ 139 xdp_synproxy \ 140 xdping \ 141 xskxceiver 142 143TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi 144 145ifneq ($(V),1) 146submake_extras := feature_display=0 147endif 148 149# override lib.mk's default rules 150OVERRIDE_TARGETS := 1 151override define CLEAN 152 $(call msg,CLEAN) 153 $(Q)$(RM) -r $(TEST_GEN_PROGS) 154 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 155 $(Q)$(RM) -r $(TEST_GEN_FILES) 156 $(Q)$(RM) -r $(TEST_KMODS) 157 $(Q)$(RM) -r $(EXTRA_CLEAN) 158 $(Q)$(MAKE) -C test_kmods clean 159 $(Q)$(MAKE) docs-clean 160endef 161 162include ../lib.mk 163 164NON_CHECK_FEAT_TARGETS := clean docs-clean 165CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 166ifneq ($(CHECK_FEAT),) 167FEATURE_USER := .selftests 168FEATURE_TESTS := llvm 169FEATURE_DISPLAY := $(FEATURE_TESTS) 170 171# Makefile.feature expects OUTPUT to end with a slash 172ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 173$(let OUTPUT,$(OUTPUT)/,\ 174 $(eval include ../../../build/Makefile.feature)) 175else 176override OUTPUT := $(OUTPUT)/ 177$(eval include ../../../build/Makefile.feature) 178override OUTPUT := $(patsubst %/,%,$(OUTPUT)) 179endif 180endif 181 182ifeq ($(feature-llvm),1) 183 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 184 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 185 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 186 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 187 # Prefer linking statically if it's available, otherwise fallback to shared 188 ifeq ($(shell $(LLVM_CONFIG) --link-static --libs &> /dev/null && echo static),static) 189 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 190 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)) 191 LLVM_LDLIBS += -lstdc++ 192 else 193 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-shared --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 194 endif 195 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 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_sysctl`, 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_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 335$(OUTPUT)/test_tag: $(TESTING_HELPERS) 336$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 337$(OUTPUT)/xdping: $(TESTING_HELPERS) 338$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 339$(OUTPUT)/test_maps: $(TESTING_HELPERS) 340$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 341$(OUTPUT)/xsk.o: $(BPFOBJ) 342 343BPFTOOL ?= $(DEFAULT_BPFTOOL) 344$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 345 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 346 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 347 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 348 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 349 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 350 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 351 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 352 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 353 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 354 355ifneq ($(CROSS_COMPILE),) 356$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 357 $(BPFOBJ) | $(BUILD_DIR)/bpftool 358 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 359 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 360 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 361 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 362 OUTPUT=$(BUILD_DIR)/bpftool/ \ 363 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 364 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 365 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 366endif 367 368all: docs 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 temprorary 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# TODO: enable me -Wsign-compare 458 459CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 460 461$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 462$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 463 464$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 465$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 466 467# Build BPF object using Clang 468# $1 - input .c file 469# $2 - output .o file 470# $3 - CFLAGS 471# $4 - binary name 472define CLANG_BPF_BUILD_RULE 473 $(call msg,CLNG-BPF,$4,$2) 474 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2 475endef 476# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 477define CLANG_NOALU32_BPF_BUILD_RULE 478 $(call msg,CLNG-BPF,$4,$2) 479 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2 480endef 481# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 482define CLANG_CPUV4_BPF_BUILD_RULE 483 $(call msg,CLNG-BPF,$4,$2) 484 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2 485endef 486# Build BPF object using GCC 487define GCC_BPF_BUILD_RULE 488 $(call msg,GCC-BPF,$4,$2) 489 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 490endef 491 492SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 493 494LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 495 linked_vars.skel.h linked_maps.skel.h \ 496 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 497 test_usdt.skel.h 498 499LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 500 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 503 504# Generate both light skeleton and libbpf skeleton for these 505LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 506 kfunc_call_test_subprog.c 507SKEL_BLACKLIST += $$(LSKELS) 508 509test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 510linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 511linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 512linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 513# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 514# but that's created as a side-effect of the skel.h generation. 515test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 516test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 517test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 518xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 519xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 520xdp_features.skel.h-deps := xdp_features.bpf.o 521 522LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 523LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 524 525HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 526 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 527 bpf_endian.h \ 528 bpf_helpers.h \ 529 bpf_tracing.h) 530 531# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 532# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 533# Parameters: 534# $1 - test runner base binary name (e.g., test_progs) 535# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 536define DEFINE_TEST_RUNNER 537 538TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 539TRUNNER_BINARY := $1$(if $2,-)$2 540TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 541 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 542TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 543 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 544TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 545TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 546TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 547TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 548TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 549 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 550 $$(TRUNNER_BPF_SRCS))) 551TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 552TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 553TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 554 555# Evaluate rules now with extra TRUNNER_XXX variables above already defined 556$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 557 558endef 559 560# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 561# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 562# $1 - test runner base binary name (e.g., test_progs) 563# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 564define DEFINE_TEST_RUNNER_RULES 565 566ifeq ($($(TRUNNER_OUTPUT)-dir),) 567$(TRUNNER_OUTPUT)-dir := y 568$(TRUNNER_OUTPUT): 569 $$(call msg,MKDIR,,$$@) 570 $(Q)mkdir -p $$@ 571endif 572 573# ensure we set up BPF objects generation rule just once for a given 574# input/output directory combination 575ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 576$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 577$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 578 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 579 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 580 $$(INCLUDE_DIR)/vmlinux.h \ 581 $(HEADERS_FOR_BPF_OBJS) \ 582 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 583 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 584 $(TRUNNER_BPF_CFLAGS) \ 585 $$($$<-CFLAGS) \ 586 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 587 588$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 589 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 590 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 591 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 592 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 593 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 594 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 595 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 596 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 597 598$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 599 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 600 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 601 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 602 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 603 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 604 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 605 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 606 607$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 608 609# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 610.SECONDEXPANSION: 611$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 612 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 613 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 614 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 615 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 616 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 617 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 618 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 619 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 620 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 621 622# When the compiler generates a %.d file, only skel basenames (not 623# full paths) are specified as prerequisites for corresponding %.o 624# file. vpath directives below instruct make to search for skel files 625# in TRUNNER_OUTPUT, if they are not present in the working directory. 626vpath %.skel.h $(TRUNNER_OUTPUT) 627vpath %.lskel.h $(TRUNNER_OUTPUT) 628vpath %.subskel.h $(TRUNNER_OUTPUT) 629 630endif 631 632# ensure we set up tests.h header generation rule just once 633ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 634$(TRUNNER_TESTS_DIR)-tests-hdr := y 635$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 636 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 637 $$(shell (echo '/* Generated header, do not edit */'; \ 638 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 639 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 640 ) > $$@) 641endif 642 643# compile individual test files 644# Note: we cd into output directory to ensure embedded BPF object is found 645$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 646 $(TRUNNER_TESTS_DIR)/%.c \ 647 | $(TRUNNER_OUTPUT)/%.test.d 648 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 649 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 650 651$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 652 $(TRUNNER_TESTS_DIR)/%.c \ 653 $(TRUNNER_EXTRA_HDRS) \ 654 $(TRUNNER_BPF_SKELS) \ 655 $(TRUNNER_BPF_LSKELS) \ 656 $(TRUNNER_BPF_SKELS_LINKED) \ 657 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 658 659ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 660include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 661endif 662 663# add per extra obj CFGLAGS definitions 664$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 665 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 666 667$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 668 %.c \ 669 $(TRUNNER_EXTRA_HDRS) \ 670 $(TRUNNER_TESTS_HDR) \ 671 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 672 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 673 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 674 675# non-flavored in-srctree builds receive special treatment, in particular, we 676# do not need to copy extra resources (see e.g. test_btf_dump_case()) 677$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 678ifneq ($2:$(OUTPUT),:$(shell pwd)) 679 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 680 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 681endif 682 683$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS) 684$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS) 685 686# some X.test.o files have runtime dependencies on Y.bpf.o files 687$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 688 689$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 690 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 691 $(RESOLVE_BTFIDS) \ 692 $(TRUNNER_BPFTOOL) \ 693 | $(TRUNNER_BINARY)-extras 694 $$(call msg,BINARY,,$$@) 695 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@ 696 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 697 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 698 $(OUTPUT)/$(if $2,$2/)bpftool 699 700endef 701 702# Define test_progs test runner. 703TRUNNER_TESTS_DIR := prog_tests 704TRUNNER_BPF_PROGS_DIR := progs 705TRUNNER_EXTRA_SOURCES := test_progs.c \ 706 cgroup_helpers.c \ 707 trace_helpers.c \ 708 network_helpers.c \ 709 testing_helpers.c \ 710 btf_helpers.c \ 711 cap_helpers.c \ 712 unpriv_helpers.c \ 713 netlink_helpers.c \ 714 jit_disasm_helpers.c \ 715 io_helpers.c \ 716 test_loader.c \ 717 xsk.c \ 718 disasm.c \ 719 disasm_helpers.c \ 720 json_writer.c \ 721 flow_dissector_load.h \ 722 ip_check_defrag_frags.h 723TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ 724 $(OUTPUT)/liburandom_read.so \ 725 $(OUTPUT)/xdp_synproxy \ 726 $(OUTPUT)/sign-file \ 727 $(OUTPUT)/uprobe_multi \ 728 $(TEST_KMOD_TARGETS) \ 729 ima_setup.sh \ 730 verify_sig_setup.sh \ 731 $(wildcard progs/btf_dump_test_case_*.c) \ 732 $(wildcard progs/*.bpf.o) 733TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 734TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 735$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 736 737# Define test_progs-no_alu32 test runner. 738TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 739TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 740$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 741 742# Define test_progs-cpuv4 test runner. 743ifneq ($(CLANG_CPUV4),) 744TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 745TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 746$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 747endif 748 749# Define test_progs BPF-GCC-flavored test runner. 750ifneq ($(BPF_GCC),) 751TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 752TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 753$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 754endif 755 756# Define test_maps test runner. 757TRUNNER_TESTS_DIR := map_tests 758TRUNNER_BPF_PROGS_DIR := progs 759TRUNNER_EXTRA_SOURCES := test_maps.c 760TRUNNER_EXTRA_FILES := 761TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 762TRUNNER_BPF_CFLAGS := 763$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 764 765# Define test_verifier test runner. 766# It is much simpler than test_maps/test_progs and sufficiently different from 767# them (e.g., test.h is using completely pattern), that it's worth just 768# explicitly defining all the rules explicitly. 769verifier/tests.h: verifier/*.c 770 $(shell ( cd verifier/; \ 771 echo '/* Generated header, do not edit */'; \ 772 echo '#ifdef FILL_ARRAY'; \ 773 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 774 echo '#endif' \ 775 ) > verifier/tests.h) 776$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 777 $(call msg,BINARY,,$@) 778 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 779 780# Include find_bit.c to compile xskxceiver. 781EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c 782$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 783 $(call msg,BINARY,,$@) 784 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 785 786$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 787 $(call msg,BINARY,,$@) 788 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 789 790$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 791 $(call msg,BINARY,,$@) 792 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 793 794# Make sure we are able to include and link libbpf against c++. 795CXXFLAGS += $(CFLAGS) 796CXXFLAGS := $(subst -D_GNU_SOURCE=,,$(CXXFLAGS)) 797CXXFLAGS := $(subst -std=gnu11,-std=gnu++11,$(CXXFLAGS)) 798$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 799 $(call msg,CXX,,$@) 800 $(Q)$(CXX) $(CXXFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 801 802# Benchmark runner 803$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 804 $(call msg,CC,,$@) 805 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 806$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 807$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 808$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 809 $(OUTPUT)/perfbuf_bench.skel.h 810$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 811$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 812$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 813$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 814$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 815$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 816$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 817$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 818$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 819$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 820$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 821$(OUTPUT)/bench: LDLIBS += -lm 822$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 823 $(TESTING_HELPERS) \ 824 $(TRACE_HELPERS) \ 825 $(CGROUP_HELPERS) \ 826 $(OUTPUT)/bench_count.o \ 827 $(OUTPUT)/bench_rename.o \ 828 $(OUTPUT)/bench_trigger.o \ 829 $(OUTPUT)/bench_ringbufs.o \ 830 $(OUTPUT)/bench_bloom_filter_map.o \ 831 $(OUTPUT)/bench_bpf_loop.o \ 832 $(OUTPUT)/bench_strncmp.o \ 833 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 834 $(OUTPUT)/bench_local_storage.o \ 835 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 836 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 837 $(OUTPUT)/bench_local_storage_create.o \ 838 $(OUTPUT)/bench_htab_mem.o \ 839 $(OUTPUT)/bench_bpf_crypto.o \ 840 # 841 $(call msg,BINARY,,$@) 842 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 843 844$(OUTPUT)/veristat.o: $(BPFOBJ) 845$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 846 $(call msg,BINARY,,$@) 847 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 848 849# Linking uprobe_multi can fail due to relocation overflows on mips. 850$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 851$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 852 $(call msg,BINARY,,$@) 853 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 854 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 855 856EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 857 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 858 feature bpftool $(TEST_KMOD_TARGETS) \ 859 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 860 no_alu32 cpuv4 bpf_gcc \ 861 liburandom_read.so) \ 862 $(OUTPUT)/FEATURE-DUMP.selftests 863 864.PHONY: docs docs-clean 865 866# Delete partially updated (corrupted) files on error 867.DELETE_ON_ERROR: 868 869DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 870override define INSTALL_RULE 871 $(DEFAULT_INSTALL_RULE) 872 @for DIR in $(TEST_INST_SUBDIRS); do \ 873 mkdir -p $(INSTALL_PATH)/$$DIR; \ 874 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 875 done 876endef 877