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