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 \ 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# The following tests perform type punning and they may break strict 58# aliasing rules, which are exploited by both GCC and clang by default 59# while optimizing. This can lead to broken programs. 60progs/bind4_prog.c-CFLAGS := -fno-strict-aliasing 61progs/bind6_prog.c-CFLAGS := -fno-strict-aliasing 62progs/dynptr_fail.c-CFLAGS := -fno-strict-aliasing 63progs/linked_list_fail.c-CFLAGS := -fno-strict-aliasing 64progs/map_kptr_fail.c-CFLAGS := -fno-strict-aliasing 65progs/syscall.c-CFLAGS := -fno-strict-aliasing 66progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing 67progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing 68progs/timer_crash.c-CFLAGS := -fno-strict-aliasing 69progs/test_global_func9.c-CFLAGS := -fno-strict-aliasing 70progs/verifier_nocsr.c-CFLAGS := -fno-strict-aliasing 71 72# Some utility functions use LLVM libraries 73jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS) 74 75ifneq ($(LLVM),) 76# Silence some warnings when compiled with clang 77CFLAGS += -Wno-unused-command-line-argument 78endif 79 80# Check whether bpf cpu=v4 is supported or not by clang 81ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),) 82CLANG_CPUV4 := 1 83endif 84 85# Order correspond to 'make run_tests' order 86TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \ 87 test_sockmap \ 88 test_tcpnotify_user test_sysctl \ 89 test_progs-no_alu32 90TEST_INST_SUBDIRS := no_alu32 91 92# Also test bpf-gcc, if present 93ifneq ($(BPF_GCC),) 94TEST_GEN_PROGS += test_progs-bpf_gcc 95TEST_INST_SUBDIRS += bpf_gcc 96 97# The following tests contain C code that, although technically legal, 98# triggers GCC warnings that cannot be disabled: declaration of 99# anonymous struct types in function parameter lists. 100progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error 101progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error 102progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error 103progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error 104progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error 105 106# The following tests do type-punning, via the __imm_insn macro, from 107# `struct bpf_insn' to long and then uses the value. This triggers an 108# "is used uninitialized" warning in GCC due to strict-aliasing 109# rules. 110progs/verifier_ref_tracking.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 111progs/verifier_unpriv.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 112progs/verifier_cgroup_storage.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 113progs/verifier_ld_ind.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 114progs/verifier_map_ret_val.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 115progs/verifier_spill_fill.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 116progs/verifier_subprog_precision.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 117progs/verifier_uninit.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 118endif 119 120ifneq ($(CLANG_CPUV4),) 121TEST_GEN_PROGS += test_progs-cpuv4 122TEST_INST_SUBDIRS += cpuv4 123endif 124 125TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o 126TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 127 128# Order correspond to 'make run_tests' order 129TEST_PROGS := test_kmod.sh \ 130 test_xdp_redirect.sh \ 131 test_xdp_redirect_multi.sh \ 132 test_xdp_meta.sh \ 133 test_tunnel.sh \ 134 test_lwt_seg6local.sh \ 135 test_lirc_mode2.sh \ 136 test_flow_dissector.sh \ 137 test_xdp_vlan_mode_generic.sh \ 138 test_xdp_vlan_mode_native.sh \ 139 test_lwt_ip_encap.sh \ 140 test_tc_tunnel.sh \ 141 test_tc_edt.sh \ 142 test_xdping.sh \ 143 test_bpftool_build.sh \ 144 test_bpftool.sh \ 145 test_bpftool_metadata.sh \ 146 test_doc_build.sh \ 147 test_xsk.sh \ 148 test_xdp_features.sh 149 150TEST_PROGS_EXTENDED := with_addr.sh \ 151 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 152 test_xdp_vlan.sh test_bpftool.py 153 154# Compile but not part of 'make run_tests' 155TEST_GEN_PROGS_EXTENDED = \ 156 bench \ 157 bpf_testmod.ko \ 158 bpf_test_modorder_x.ko \ 159 bpf_test_modorder_y.ko \ 160 bpf_test_no_cfi.ko \ 161 flow_dissector_load \ 162 runqslower \ 163 test_cpp \ 164 test_flow_dissector \ 165 test_lirc_mode2_user \ 166 veristat \ 167 xdp_features \ 168 xdp_hw_metadata \ 169 xdp_redirect_multi \ 170 xdp_synproxy \ 171 xdping \ 172 xskxceiver 173 174TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi 175 176ifneq ($(V),1) 177submake_extras := feature_display=0 178endif 179 180# override lib.mk's default rules 181OVERRIDE_TARGETS := 1 182override define CLEAN 183 $(call msg,CLEAN) 184 $(Q)$(RM) -r $(TEST_GEN_PROGS) 185 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 186 $(Q)$(RM) -r $(TEST_GEN_FILES) 187 $(Q)$(RM) -r $(EXTRA_CLEAN) 188 $(Q)$(MAKE) -C bpf_testmod clean 189 $(Q)$(MAKE) docs-clean 190endef 191 192include ../lib.mk 193 194NON_CHECK_FEAT_TARGETS := clean docs-clean 195CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 196ifneq ($(CHECK_FEAT),) 197FEATURE_USER := .selftests 198FEATURE_TESTS := llvm 199FEATURE_DISPLAY := $(FEATURE_TESTS) 200 201# Makefile.feature expects OUTPUT to end with a slash 202ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 203$(let OUTPUT,$(OUTPUT)/,\ 204 $(eval include ../../../build/Makefile.feature)) 205else 206OUTPUT := $(OUTPUT)/ 207$(eval include ../../../build/Makefile.feature) 208OUTPUT := $(patsubst %/,%,$(OUTPUT)) 209endif 210endif 211 212ifeq ($(feature-llvm),1) 213 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 214 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 215 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 216 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 217 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 218 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)) 219 LLVM_LDLIBS += -lstdc++ 220 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 221endif 222 223SCRATCH_DIR := $(OUTPUT)/tools 224BUILD_DIR := $(SCRATCH_DIR)/build 225INCLUDE_DIR := $(SCRATCH_DIR)/include 226BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 227ifneq ($(CROSS_COMPILE),) 228HOST_BUILD_DIR := $(BUILD_DIR)/host 229HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 230HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 231else 232HOST_BUILD_DIR := $(BUILD_DIR) 233HOST_SCRATCH_DIR := $(SCRATCH_DIR) 234HOST_INCLUDE_DIR := $(INCLUDE_DIR) 235endif 236HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 237RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 238RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 239 240VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 241 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 242 ../../../../vmlinux \ 243 /sys/kernel/btf/vmlinux \ 244 /boot/vmlinux-$(shell uname -r) 245VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 246ifeq ($(VMLINUX_BTF),) 247$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 248endif 249 250# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 251# to build individual tests. 252# NOTE: Semicolon at the end is critical to override lib.mk's default static 253# rule for binaries. 254$(notdir $(TEST_GEN_PROGS) \ 255 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ; 256 257# sort removes libbpf duplicates when not cross-building 258MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 259 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ 260 $(HOST_BUILD_DIR)/resolve_btfids \ 261 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 262$(MAKE_DIRS): 263 $(call msg,MKDIR,,$@) 264 $(Q)mkdir -p $@ 265 266$(OUTPUT)/%.o: %.c 267 $(call msg,CC,,$@) 268 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 269 270$(OUTPUT)/%:%.c 271 $(call msg,BINARY,,$@) 272 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 273 274# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 275ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) 276LLD := lld 277else 278LLD := $(shell command -v $(LD)) 279endif 280 281# Filter out -static for liburandom_read.so and its dependent targets so that static builds 282# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 283$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map 284 $(call msg,LIB,,$@) 285 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 286 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 287 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ 288 -Wno-unused-command-line-argument \ 289 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 290 -Wl,--version-script=liburandom_read.map \ 291 -fPIC -shared -o $@ 292 293$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 294 $(call msg,BINARY,,$@) 295 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 296 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 297 -Wno-unused-command-line-argument \ 298 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 299 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 300 -Wl,-rpath=. -o $@ 301 302$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 303 $(call msg,SIGN-FILE,,$@) 304 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 305 $< -o $@ \ 306 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 307 308$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 309 $(call msg,MOD,,$@) 310 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 311 $(Q)$(MAKE) $(submake_extras) -C bpf_testmod \ 312 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 313 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 314 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 315 316$(OUTPUT)/bpf_test_no_cfi.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_no_cfi/Makefile bpf_test_no_cfi/*.[ch]) 317 $(call msg,MOD,,$@) 318 $(Q)$(RM) bpf_test_no_cfi/bpf_test_no_cfi.ko # force re-compilation 319 $(Q)$(MAKE) $(submake_extras) -C bpf_test_no_cfi \ 320 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 321 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 322 $(Q)cp bpf_test_no_cfi/bpf_test_no_cfi.ko $@ 323 324$(OUTPUT)/bpf_test_modorder_x.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_x/Makefile bpf_test_modorder_x/*.[ch]) 325 $(call msg,MOD,,$@) 326 $(Q)$(RM) bpf_test_modorder_x/bpf_test_modorder_x.ko # force re-compilation 327 $(Q)$(MAKE) $(submake_extras) -C bpf_test_modorder_x \ 328 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 329 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 330 $(Q)cp bpf_test_modorder_x/bpf_test_modorder_x.ko $@ 331 332$(OUTPUT)/bpf_test_modorder_y.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_y/Makefile bpf_test_modorder_y/*.[ch]) 333 $(call msg,MOD,,$@) 334 $(Q)$(RM) bpf_test_modorder_y/bpf_test_modorder_y.ko # force re-compilation 335 $(Q)$(MAKE) $(submake_extras) -C bpf_test_modorder_y \ 336 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 337 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 338 $(Q)cp bpf_test_modorder_y/bpf_test_modorder_y.ko $@ 339 340 341DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 342ifneq ($(CROSS_COMPILE),) 343CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 344TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 345USE_BOOTSTRAP := "" 346else 347TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 348USE_BOOTSTRAP := "bootstrap/" 349endif 350 351$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 352 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 353 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 354 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 355 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ 356 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 357 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 358 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' && \ 359 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 360 361TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 362 363$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 364 365TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 366CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 367UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 368TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 369JSON_WRITER := $(OUTPUT)/json_writer.o 370CAP_HELPERS := $(OUTPUT)/cap_helpers.o 371NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 372 373$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 374$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 375$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 376$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 377$(OUTPUT)/test_tag: $(TESTING_HELPERS) 378$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 379$(OUTPUT)/xdping: $(TESTING_HELPERS) 380$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 381$(OUTPUT)/test_maps: $(TESTING_HELPERS) 382$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 383$(OUTPUT)/xsk.o: $(BPFOBJ) 384 385BPFTOOL ?= $(DEFAULT_BPFTOOL) 386$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 387 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 388 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 389 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 390 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 391 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 392 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 393 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 394 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 395 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 396 397ifneq ($(CROSS_COMPILE),) 398$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 399 $(BPFOBJ) | $(BUILD_DIR)/bpftool 400 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 401 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 402 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 403 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 404 OUTPUT=$(BUILD_DIR)/bpftool/ \ 405 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 406 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 407 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 408endif 409 410all: docs 411 412docs: 413 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 414 -f Makefile.docs \ 415 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 416 417docs-clean: 418 $(Q)$(MAKE) $(submake_extras) \ 419 -f Makefile.docs \ 420 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 421 422$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 423 $(APIDIR)/linux/bpf.h \ 424 | $(BUILD_DIR)/libbpf 425 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 426 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 427 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' \ 428 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 429 430ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 431$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 432 $(APIDIR)/linux/bpf.h \ 433 | $(HOST_BUILD_DIR)/libbpf 434 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 435 ARCH= CROSS_COMPILE= \ 436 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 437 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 438 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 439 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 440 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 441endif 442 443# vmlinux.h is first dumped to a temprorary file and then compared to 444# the previous version. This helps to avoid unnecessary re-builds of 445# $(TRUNNER_BPF_OBJS) 446$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 447ifeq ($(VMLINUX_H),) 448 $(call msg,GEN,,$@) 449 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 450 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 451else 452 $(call msg,CP,,$@) 453 $(Q)cp "$(VMLINUX_H)" $@ 454endif 455 456$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 457 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 458 $(TOOLSDIR)/lib/rbtree.c \ 459 $(TOOLSDIR)/lib/zalloc.c \ 460 $(TOOLSDIR)/lib/string.c \ 461 $(TOOLSDIR)/lib/ctype.c \ 462 $(TOOLSDIR)/lib/str_error_r.c 463 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 464 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 465 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 466 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 467 468# Get Clang's default includes on this system, as opposed to those seen by 469# '--target=bpf'. This fixes "missing" files on some architectures/distros, 470# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 471# 472# Use '-idirafter': Don't interfere with include mechanics except where the 473# build would have failed anyways. 474define get_sys_includes 475$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 476 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 477$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 478$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 479$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 480endef 481 482# Determine target endianness. 483IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 484 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 485MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 486BPF_TARGET_ENDIAN=$(if $(IS_LITTLE_ENDIAN),--target=bpfel,--target=bpfeb) 487 488ifneq ($(CROSS_COMPILE),) 489CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 490endif 491 492CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 493BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 494 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 495 -I$(abspath $(OUTPUT)/../usr/include) \ 496 -Wno-compare-distinct-pointer-types 497# TODO: enable me -Wsign-compare 498 499CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 500 501$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 502$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 503 504$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 505$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 506 507# Build BPF object using Clang 508# $1 - input .c file 509# $2 - output .o file 510# $3 - CFLAGS 511# $4 - binary name 512define CLANG_BPF_BUILD_RULE 513 $(call msg,CLNG-BPF,$4,$2) 514 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2 515endef 516# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 517define CLANG_NOALU32_BPF_BUILD_RULE 518 $(call msg,CLNG-BPF,$4,$2) 519 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2 520endef 521# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 522define CLANG_CPUV4_BPF_BUILD_RULE 523 $(call msg,CLNG-BPF,$4,$2) 524 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2 525endef 526# Build BPF object using GCC 527define GCC_BPF_BUILD_RULE 528 $(call msg,GCC-BPF,$4,$2) 529 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 530endef 531 532SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 533 534LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 535 linked_vars.skel.h linked_maps.skel.h \ 536 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 537 test_usdt.skel.h 538 539LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 540 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 541 core_kern.c core_kern_overflow.c test_ringbuf.c \ 542 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c 543 544# Generate both light skeleton and libbpf skeleton for these 545LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 546 kfunc_call_test_subprog.c 547SKEL_BLACKLIST += $$(LSKELS) 548 549test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 550linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 551linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 552linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 553# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 554# but that's created as a side-effect of the skel.h generation. 555test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 556test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 557test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 558xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 559xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 560xdp_features.skel.h-deps := xdp_features.bpf.o 561 562LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 563LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 564 565HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 566 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 567 bpf_endian.h \ 568 bpf_helpers.h \ 569 bpf_tracing.h) 570 571# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 572# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 573# Parameters: 574# $1 - test runner base binary name (e.g., test_progs) 575# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 576define DEFINE_TEST_RUNNER 577 578TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 579TRUNNER_BINARY := $1$(if $2,-)$2 580TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 581 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 582TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 583 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 584TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 585TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 586TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 587TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 588TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 589 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 590 $$(TRUNNER_BPF_SRCS))) 591TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 592TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 593TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 594 595# Evaluate rules now with extra TRUNNER_XXX variables above already defined 596$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 597 598endef 599 600# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 601# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 602# $1 - test runner base binary name (e.g., test_progs) 603# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 604define DEFINE_TEST_RUNNER_RULES 605 606ifeq ($($(TRUNNER_OUTPUT)-dir),) 607$(TRUNNER_OUTPUT)-dir := y 608$(TRUNNER_OUTPUT): 609 $$(call msg,MKDIR,,$$@) 610 $(Q)mkdir -p $$@ 611endif 612 613# ensure we set up BPF objects generation rule just once for a given 614# input/output directory combination 615ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 616$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 617$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 618 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 619 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 620 $$(INCLUDE_DIR)/vmlinux.h \ 621 $(HEADERS_FOR_BPF_OBJS) \ 622 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 623 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 624 $(TRUNNER_BPF_CFLAGS) \ 625 $$($$<-CFLAGS) \ 626 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 627 628$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 629 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 630 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 631 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 632 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 633 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 634 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 635 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 636 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 637 638$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 639 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 640 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 641 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 642 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 643 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 644 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 645 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 646 647$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 648 649# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 650.SECONDEXPANSION: 651$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 652 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 653 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 654 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 655 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 656 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 657 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 658 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 659 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 660 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 661 662# When the compiler generates a %.d file, only skel basenames (not 663# full paths) are specified as prerequisites for corresponding %.o 664# file. vpath directives below instruct make to search for skel files 665# in TRUNNER_OUTPUT, if they are not present in the working directory. 666vpath %.skel.h $(TRUNNER_OUTPUT) 667vpath %.lskel.h $(TRUNNER_OUTPUT) 668vpath %.subskel.h $(TRUNNER_OUTPUT) 669 670endif 671 672# ensure we set up tests.h header generation rule just once 673ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 674$(TRUNNER_TESTS_DIR)-tests-hdr := y 675$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 676 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 677 $$(shell (echo '/* Generated header, do not edit */'; \ 678 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 679 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 680 ) > $$@) 681endif 682 683# compile individual test files 684# Note: we cd into output directory to ensure embedded BPF object is found 685$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 686 $(TRUNNER_TESTS_DIR)/%.c \ 687 | $(TRUNNER_OUTPUT)/%.test.d 688 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 689 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 690 691$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 692 $(TRUNNER_TESTS_DIR)/%.c \ 693 $(TRUNNER_EXTRA_HDRS) \ 694 $(TRUNNER_BPF_SKELS) \ 695 $(TRUNNER_BPF_LSKELS) \ 696 $(TRUNNER_BPF_SKELS_LINKED) \ 697 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 698 699ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 700include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 701endif 702 703# add per extra obj CFGLAGS definitions 704$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 705 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 706 707$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 708 %.c \ 709 $(TRUNNER_EXTRA_HDRS) \ 710 $(TRUNNER_TESTS_HDR) \ 711 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 712 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 713 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 714 715# non-flavored in-srctree builds receive special treatment, in particular, we 716# do not need to copy extra resources (see e.g. test_btf_dump_case()) 717$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 718ifneq ($2:$(OUTPUT),:$(shell pwd)) 719 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 720 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 721endif 722 723$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS) 724$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS) 725 726# some X.test.o files have runtime dependencies on Y.bpf.o files 727$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 728 729$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 730 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 731 $(RESOLVE_BTFIDS) \ 732 $(TRUNNER_BPFTOOL) \ 733 | $(TRUNNER_BINARY)-extras 734 $$(call msg,BINARY,,$$@) 735 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@ 736 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 737 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 738 $(OUTPUT)/$(if $2,$2/)bpftool 739 740endef 741 742# Define test_progs test runner. 743TRUNNER_TESTS_DIR := prog_tests 744TRUNNER_BPF_PROGS_DIR := progs 745TRUNNER_EXTRA_SOURCES := test_progs.c \ 746 cgroup_helpers.c \ 747 trace_helpers.c \ 748 network_helpers.c \ 749 testing_helpers.c \ 750 btf_helpers.c \ 751 cap_helpers.c \ 752 unpriv_helpers.c \ 753 netlink_helpers.c \ 754 jit_disasm_helpers.c \ 755 io_helpers.c \ 756 test_loader.c \ 757 xsk.c \ 758 disasm.c \ 759 disasm_helpers.c \ 760 json_writer.c \ 761 flow_dissector_load.h \ 762 ip_check_defrag_frags.h 763TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 764 $(OUTPUT)/bpf_test_no_cfi.ko \ 765 $(OUTPUT)/bpf_test_modorder_x.ko \ 766 $(OUTPUT)/bpf_test_modorder_y.ko \ 767 $(OUTPUT)/liburandom_read.so \ 768 $(OUTPUT)/xdp_synproxy \ 769 $(OUTPUT)/sign-file \ 770 $(OUTPUT)/uprobe_multi \ 771 ima_setup.sh \ 772 verify_sig_setup.sh \ 773 $(wildcard progs/btf_dump_test_case_*.c) \ 774 $(wildcard progs/*.bpf.o) 775TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 776TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 777$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 778 779# Define test_progs-no_alu32 test runner. 780TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 781TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 782$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 783 784# Define test_progs-cpuv4 test runner. 785ifneq ($(CLANG_CPUV4),) 786TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 787TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 788$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 789endif 790 791# Define test_progs BPF-GCC-flavored test runner. 792ifneq ($(BPF_GCC),) 793TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 794TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 795$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 796endif 797 798# Define test_maps test runner. 799TRUNNER_TESTS_DIR := map_tests 800TRUNNER_BPF_PROGS_DIR := progs 801TRUNNER_EXTRA_SOURCES := test_maps.c 802TRUNNER_EXTRA_FILES := 803TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 804TRUNNER_BPF_CFLAGS := 805$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 806 807# Define test_verifier test runner. 808# It is much simpler than test_maps/test_progs and sufficiently different from 809# them (e.g., test.h is using completely pattern), that it's worth just 810# explicitly defining all the rules explicitly. 811verifier/tests.h: verifier/*.c 812 $(shell ( cd verifier/; \ 813 echo '/* Generated header, do not edit */'; \ 814 echo '#ifdef FILL_ARRAY'; \ 815 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 816 echo '#endif' \ 817 ) > verifier/tests.h) 818$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 819 $(call msg,BINARY,,$@) 820 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 821 822# Include find_bit.c to compile xskxceiver. 823EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c 824$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 825 $(call msg,BINARY,,$@) 826 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 827 828$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 829 $(call msg,BINARY,,$@) 830 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 831 832$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 833 $(call msg,BINARY,,$@) 834 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 835 836# Make sure we are able to include and link libbpf against c++. 837$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 838 $(call msg,CXX,,$@) 839 $(Q)$(CXX) $(subst -D_GNU_SOURCE=,,$(CFLAGS)) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 840 841# Benchmark runner 842$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 843 $(call msg,CC,,$@) 844 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 845$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 846$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 847$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 848 $(OUTPUT)/perfbuf_bench.skel.h 849$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 850$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 851$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 852$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 853$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 854$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 855$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 856$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 857$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 858$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 859$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 860$(OUTPUT)/bench: LDLIBS += -lm 861$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 862 $(TESTING_HELPERS) \ 863 $(TRACE_HELPERS) \ 864 $(CGROUP_HELPERS) \ 865 $(OUTPUT)/bench_count.o \ 866 $(OUTPUT)/bench_rename.o \ 867 $(OUTPUT)/bench_trigger.o \ 868 $(OUTPUT)/bench_ringbufs.o \ 869 $(OUTPUT)/bench_bloom_filter_map.o \ 870 $(OUTPUT)/bench_bpf_loop.o \ 871 $(OUTPUT)/bench_strncmp.o \ 872 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 873 $(OUTPUT)/bench_local_storage.o \ 874 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 875 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 876 $(OUTPUT)/bench_local_storage_create.o \ 877 $(OUTPUT)/bench_htab_mem.o \ 878 $(OUTPUT)/bench_bpf_crypto.o \ 879 # 880 $(call msg,BINARY,,$@) 881 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 882 883$(OUTPUT)/veristat.o: $(BPFOBJ) 884$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 885 $(call msg,BINARY,,$@) 886 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 887 888# Linking uprobe_multi can fail due to relocation overflows on mips. 889$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 890$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 891 $(call msg,BINARY,,$@) 892 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 893 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 894 895EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 896 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 897 feature bpftool \ 898 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 899 no_alu32 cpuv4 bpf_gcc bpf_testmod.ko \ 900 bpf_test_no_cfi.ko \ 901 bpf_test_modorder_x.ko \ 902 bpf_test_modorder_y.ko \ 903 liburandom_read.so) \ 904 $(OUTPUT)/FEATURE-DUMP.selftests 905 906.PHONY: docs docs-clean 907 908# Delete partially updated (corrupted) files on error 909.DELETE_ON_ERROR: 910 911DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 912override define INSTALL_RULE 913 $(DEFAULT_INSTALL_RULE) 914 @for DIR in $(TEST_INST_SUBDIRS); do \ 915 mkdir -p $(INSTALL_PATH)/$$DIR; \ 916 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 917 done 918endef 919