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.sh \ 104 test_xdp_redirect_multi.sh \ 105 test_xdp_meta.sh \ 106 test_tunnel.sh \ 107 test_lwt_seg6local.sh \ 108 test_lirc_mode2.sh \ 109 test_xdp_vlan_mode_generic.sh \ 110 test_xdp_vlan_mode_native.sh \ 111 test_lwt_ip_encap.sh \ 112 test_tc_tunnel.sh \ 113 test_tc_edt.sh \ 114 test_xdping.sh \ 115 test_bpftool_build.sh \ 116 test_bpftool.sh \ 117 test_bpftool_metadata.sh \ 118 test_doc_build.sh \ 119 test_xsk.sh \ 120 test_xdp_features.sh 121 122TEST_PROGS_EXTENDED := with_addr.sh \ 123 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 124 test_xdp_vlan.sh test_bpftool.py 125 126TEST_KMODS := bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \ 127 bpf_test_modorder_y.ko 128TEST_KMOD_TARGETS = $(addprefix $(OUTPUT)/,$(TEST_KMODS)) 129 130# Compile but not part of 'make run_tests' 131TEST_GEN_PROGS_EXTENDED = \ 132 bench \ 133 flow_dissector_load \ 134 runqslower \ 135 test_cpp \ 136 test_lirc_mode2_user \ 137 veristat \ 138 xdp_features \ 139 xdp_hw_metadata \ 140 xdp_redirect_multi \ 141 xdp_synproxy \ 142 xdping \ 143 xskxceiver 144 145TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi 146 147ifneq ($(V),1) 148submake_extras := feature_display=0 149endif 150 151# override lib.mk's default rules 152OVERRIDE_TARGETS := 1 153override define CLEAN 154 $(call msg,CLEAN) 155 $(Q)$(RM) -r $(TEST_GEN_PROGS) 156 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 157 $(Q)$(RM) -r $(TEST_GEN_FILES) 158 $(Q)$(RM) -r $(TEST_KMODS) 159 $(Q)$(RM) -r $(EXTRA_CLEAN) 160 $(Q)$(MAKE) -C test_kmods clean 161 $(Q)$(MAKE) docs-clean 162endef 163 164include ../lib.mk 165 166NON_CHECK_FEAT_TARGETS := clean docs-clean 167CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 168ifneq ($(CHECK_FEAT),) 169FEATURE_USER := .selftests 170FEATURE_TESTS := llvm 171FEATURE_DISPLAY := $(FEATURE_TESTS) 172 173# Makefile.feature expects OUTPUT to end with a slash 174ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 175$(let OUTPUT,$(OUTPUT)/,\ 176 $(eval include ../../../build/Makefile.feature)) 177else 178override OUTPUT := $(OUTPUT)/ 179$(eval include ../../../build/Makefile.feature) 180override OUTPUT := $(patsubst %/,%,$(OUTPUT)) 181endif 182endif 183 184ifeq ($(feature-llvm),1) 185 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 186 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 187 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 188 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 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 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 193endif 194 195SCRATCH_DIR := $(OUTPUT)/tools 196BUILD_DIR := $(SCRATCH_DIR)/build 197INCLUDE_DIR := $(SCRATCH_DIR)/include 198BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 199ifneq ($(CROSS_COMPILE),) 200HOST_BUILD_DIR := $(BUILD_DIR)/host 201HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 202HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 203else 204HOST_BUILD_DIR := $(BUILD_DIR) 205HOST_SCRATCH_DIR := $(SCRATCH_DIR) 206HOST_INCLUDE_DIR := $(INCLUDE_DIR) 207endif 208HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 209RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 210RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 211 212VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 213 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 214 ../../../../vmlinux \ 215 /sys/kernel/btf/vmlinux \ 216 /boot/vmlinux-$(shell uname -r) 217VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 218ifeq ($(VMLINUX_BTF),) 219$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 220endif 221 222# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 223# to build individual tests. 224# NOTE: Semicolon at the end is critical to override lib.mk's default static 225# rule for binaries. 226$(notdir $(TEST_GEN_PROGS) $(TEST_KMODS) \ 227 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ; 228 229# sort removes libbpf duplicates when not cross-building 230MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 231 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ 232 $(HOST_BUILD_DIR)/resolve_btfids \ 233 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 234$(MAKE_DIRS): 235 $(call msg,MKDIR,,$@) 236 $(Q)mkdir -p $@ 237 238$(OUTPUT)/%.o: %.c 239 $(call msg,CC,,$@) 240 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 241 242$(OUTPUT)/%:%.c 243 $(call msg,BINARY,,$@) 244 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 245 246# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 247ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) 248LLD := lld 249else 250LLD := $(shell command -v $(LD)) 251endif 252 253# Filter out -static for liburandom_read.so and its dependent targets so that static builds 254# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 255$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map 256 $(call msg,LIB,,$@) 257 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 258 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 259 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ 260 -Wno-unused-command-line-argument \ 261 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 262 -Wl,--version-script=liburandom_read.map \ 263 -fPIC -shared -o $@ 264 265$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 266 $(call msg,BINARY,,$@) 267 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 268 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 269 -Wno-unused-command-line-argument \ 270 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 271 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 272 -Wl,-rpath=. -o $@ 273 274$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 275 $(call msg,SIGN-FILE,,$@) 276 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 277 $< -o $@ \ 278 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 279 280# This should really be a grouped target, but make versions before 4.3 don't 281# support that for regular rules. However, pattern matching rules are implicitly 282# treated as grouped even with older versions of make, so as a workaround, the 283# subst() turns the rule into a pattern matching rule 284$(addprefix test_kmods/,$(subst .ko,%ko,$(TEST_KMODS))): $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard test_kmods/Makefile test_kmods/*.[ch]) 285 $(Q)$(RM) test_kmods/*.ko test_kmods/*.mod.o # force re-compilation 286 $(Q)$(MAKE) $(submake_extras) -C test_kmods \ 287 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \ 288 EXTRA_CFLAGS='' EXTRA_LDFLAGS='' 289 290$(TEST_KMOD_TARGETS): $(addprefix test_kmods/,$(TEST_KMODS)) 291 $(call msg,MOD,,$@) 292 $(Q)cp test_kmods/$(@F) $@ 293 294 295DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 296ifneq ($(CROSS_COMPILE),) 297CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 298TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 299USE_BOOTSTRAP := "" 300else 301TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 302USE_BOOTSTRAP := "bootstrap/" 303endif 304 305$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 306 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 307 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 308 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 309 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ 310 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 311 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 312 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' && \ 313 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 314 315TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 316 317$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 318 319TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 320CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 321UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 322TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 323JSON_WRITER := $(OUTPUT)/json_writer.o 324CAP_HELPERS := $(OUTPUT)/cap_helpers.o 325NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 326 327$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 328$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 329$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 330$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 331$(OUTPUT)/test_tag: $(TESTING_HELPERS) 332$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 333$(OUTPUT)/xdping: $(TESTING_HELPERS) 334$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 335$(OUTPUT)/test_maps: $(TESTING_HELPERS) 336$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 337$(OUTPUT)/xsk.o: $(BPFOBJ) 338 339BPFTOOL ?= $(DEFAULT_BPFTOOL) 340$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 341 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 342 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 343 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 344 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 345 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 346 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 347 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 348 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 349 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 350 351ifneq ($(CROSS_COMPILE),) 352$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 353 $(BPFOBJ) | $(BUILD_DIR)/bpftool 354 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 355 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 356 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 357 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 358 OUTPUT=$(BUILD_DIR)/bpftool/ \ 359 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 360 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 361 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 362endif 363 364all: docs 365 366docs: 367 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 368 -f Makefile.docs \ 369 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 370 371docs-clean: 372 $(Q)$(MAKE) $(submake_extras) \ 373 -f Makefile.docs \ 374 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 375 376$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 377 $(APIDIR)/linux/bpf.h \ 378 | $(BUILD_DIR)/libbpf 379 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 380 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \ 381 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' \ 382 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 383 384ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 385$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 386 $(APIDIR)/linux/bpf.h \ 387 | $(HOST_BUILD_DIR)/libbpf 388 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 389 ARCH= CROSS_COMPILE= \ 390 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \ 391 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \ 392 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 393 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 394 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 395endif 396 397# vmlinux.h is first dumped to a temprorary file and then compared to 398# the previous version. This helps to avoid unnecessary re-builds of 399# $(TRUNNER_BPF_OBJS) 400$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 401ifeq ($(VMLINUX_H),) 402 $(call msg,GEN,,$@) 403 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 404 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 405else 406 $(call msg,CP,,$@) 407 $(Q)cp "$(VMLINUX_H)" $@ 408endif 409 410$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 411 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 412 $(TOOLSDIR)/lib/rbtree.c \ 413 $(TOOLSDIR)/lib/zalloc.c \ 414 $(TOOLSDIR)/lib/string.c \ 415 $(TOOLSDIR)/lib/ctype.c \ 416 $(TOOLSDIR)/lib/str_error_r.c 417 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 418 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 419 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 420 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 421 422# Get Clang's default includes on this system, as opposed to those seen by 423# '--target=bpf'. This fixes "missing" files on some architectures/distros, 424# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 425# 426# Use '-idirafter': Don't interfere with include mechanics except where the 427# build would have failed anyways. 428define get_sys_includes 429$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 430 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 431$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 432$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 433$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 434endef 435 436# Determine target endianness. 437IS_LITTLE_ENDIAN := $(shell $(CC) -dM -E - </dev/null | \ 438 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 439MENDIAN:=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 440BPF_TARGET_ENDIAN:=$(if $(IS_LITTLE_ENDIAN),--target=bpfel,--target=bpfeb) 441 442ifneq ($(CROSS_COMPILE),) 443CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 444endif 445 446CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 447BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 448 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 449 -I$(abspath $(OUTPUT)/../usr/include) \ 450 -std=gnu11 \ 451 -fno-strict-aliasing \ 452 -Wno-compare-distinct-pointer-types 453# TODO: enable me -Wsign-compare 454 455CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 456 457$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 458$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 459 460$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 461$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 462 463# Build BPF object using Clang 464# $1 - input .c file 465# $2 - output .o file 466# $3 - CFLAGS 467# $4 - binary name 468define CLANG_BPF_BUILD_RULE 469 $(call msg,CLNG-BPF,$4,$2) 470 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2 471endef 472# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 473define CLANG_NOALU32_BPF_BUILD_RULE 474 $(call msg,CLNG-BPF,$4,$2) 475 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2 476endef 477# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 478define CLANG_CPUV4_BPF_BUILD_RULE 479 $(call msg,CLNG-BPF,$4,$2) 480 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2 481endef 482# Build BPF object using GCC 483define GCC_BPF_BUILD_RULE 484 $(call msg,GCC-BPF,$4,$2) 485 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 486endef 487 488SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 489 490LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 491 linked_vars.skel.h linked_maps.skel.h \ 492 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 493 test_usdt.skel.h 494 495LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 496 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 497 core_kern.c core_kern_overflow.c test_ringbuf.c \ 498 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c 499 500# Generate both light skeleton and libbpf skeleton for these 501LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 502 kfunc_call_test_subprog.c 503SKEL_BLACKLIST += $$(LSKELS) 504 505test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 506linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 507linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 508linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 509# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 510# but that's created as a side-effect of the skel.h generation. 511test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 512test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 513test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 514xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 515xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 516xdp_features.skel.h-deps := xdp_features.bpf.o 517 518LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 519LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 520 521HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 522 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 523 bpf_endian.h \ 524 bpf_helpers.h \ 525 bpf_tracing.h) 526 527# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 528# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 529# Parameters: 530# $1 - test runner base binary name (e.g., test_progs) 531# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 532define DEFINE_TEST_RUNNER 533 534TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 535TRUNNER_BINARY := $1$(if $2,-)$2 536TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 537 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 538TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 539 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 540TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 541TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 542TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 543TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 544TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 545 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 546 $$(TRUNNER_BPF_SRCS))) 547TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 548TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 549TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 550 551# Evaluate rules now with extra TRUNNER_XXX variables above already defined 552$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 553 554endef 555 556# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 557# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 558# $1 - test runner base binary name (e.g., test_progs) 559# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 560define DEFINE_TEST_RUNNER_RULES 561 562ifeq ($($(TRUNNER_OUTPUT)-dir),) 563$(TRUNNER_OUTPUT)-dir := y 564$(TRUNNER_OUTPUT): 565 $$(call msg,MKDIR,,$$@) 566 $(Q)mkdir -p $$@ 567endif 568 569# ensure we set up BPF objects generation rule just once for a given 570# input/output directory combination 571ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 572$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 573$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 574 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 575 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 576 $$(INCLUDE_DIR)/vmlinux.h \ 577 $(HEADERS_FOR_BPF_OBJS) \ 578 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 579 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 580 $(TRUNNER_BPF_CFLAGS) \ 581 $$($$<-CFLAGS) \ 582 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 583 584$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 585 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 586 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 587 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 588 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 589 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 590 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 591 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 592 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 593 594$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 595 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 596 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 597 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 598 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 599 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 600 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 601 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 602 603$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 604 605# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 606.SECONDEXPANSION: 607$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 608 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 609 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 610 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 611 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 612 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 613 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 614 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 615 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 616 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 617 618# When the compiler generates a %.d file, only skel basenames (not 619# full paths) are specified as prerequisites for corresponding %.o 620# file. vpath directives below instruct make to search for skel files 621# in TRUNNER_OUTPUT, if they are not present in the working directory. 622vpath %.skel.h $(TRUNNER_OUTPUT) 623vpath %.lskel.h $(TRUNNER_OUTPUT) 624vpath %.subskel.h $(TRUNNER_OUTPUT) 625 626endif 627 628# ensure we set up tests.h header generation rule just once 629ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 630$(TRUNNER_TESTS_DIR)-tests-hdr := y 631$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 632 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 633 $$(shell (echo '/* Generated header, do not edit */'; \ 634 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 635 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 636 ) > $$@) 637endif 638 639# compile individual test files 640# Note: we cd into output directory to ensure embedded BPF object is found 641$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 642 $(TRUNNER_TESTS_DIR)/%.c \ 643 | $(TRUNNER_OUTPUT)/%.test.d 644 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 645 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 646 647$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 648 $(TRUNNER_TESTS_DIR)/%.c \ 649 $(TRUNNER_EXTRA_HDRS) \ 650 $(TRUNNER_BPF_SKELS) \ 651 $(TRUNNER_BPF_LSKELS) \ 652 $(TRUNNER_BPF_SKELS_LINKED) \ 653 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 654 655ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 656include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 657endif 658 659# add per extra obj CFGLAGS definitions 660$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 661 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 662 663$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 664 %.c \ 665 $(TRUNNER_EXTRA_HDRS) \ 666 $(TRUNNER_TESTS_HDR) \ 667 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 668 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 669 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 670 671# non-flavored in-srctree builds receive special treatment, in particular, we 672# do not need to copy extra resources (see e.g. test_btf_dump_case()) 673$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 674ifneq ($2:$(OUTPUT),:$(shell pwd)) 675 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 676 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 677endif 678 679$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS) 680$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS) 681 682# some X.test.o files have runtime dependencies on Y.bpf.o files 683$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 684 685$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 686 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 687 $(RESOLVE_BTFIDS) \ 688 $(TRUNNER_BPFTOOL) \ 689 | $(TRUNNER_BINARY)-extras 690 $$(call msg,BINARY,,$$@) 691 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@ 692 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 693 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 694 $(OUTPUT)/$(if $2,$2/)bpftool 695 696endef 697 698# Define test_progs test runner. 699TRUNNER_TESTS_DIR := prog_tests 700TRUNNER_BPF_PROGS_DIR := progs 701TRUNNER_EXTRA_SOURCES := test_progs.c \ 702 cgroup_helpers.c \ 703 trace_helpers.c \ 704 network_helpers.c \ 705 testing_helpers.c \ 706 btf_helpers.c \ 707 cap_helpers.c \ 708 unpriv_helpers.c \ 709 netlink_helpers.c \ 710 jit_disasm_helpers.c \ 711 io_helpers.c \ 712 test_loader.c \ 713 xsk.c \ 714 disasm.c \ 715 disasm_helpers.c \ 716 json_writer.c \ 717 flow_dissector_load.h \ 718 ip_check_defrag_frags.h 719TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ 720 $(OUTPUT)/liburandom_read.so \ 721 $(OUTPUT)/xdp_synproxy \ 722 $(OUTPUT)/sign-file \ 723 $(OUTPUT)/uprobe_multi \ 724 $(TEST_KMOD_TARGETS) \ 725 ima_setup.sh \ 726 verify_sig_setup.sh \ 727 $(wildcard progs/btf_dump_test_case_*.c) \ 728 $(wildcard progs/*.bpf.o) 729TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 730TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 731$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 732 733# Define test_progs-no_alu32 test runner. 734TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 735TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 736$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 737 738# Define test_progs-cpuv4 test runner. 739ifneq ($(CLANG_CPUV4),) 740TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 741TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 742$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 743endif 744 745# Define test_progs BPF-GCC-flavored test runner. 746ifneq ($(BPF_GCC),) 747TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 748TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 749$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 750endif 751 752# Define test_maps test runner. 753TRUNNER_TESTS_DIR := map_tests 754TRUNNER_BPF_PROGS_DIR := progs 755TRUNNER_EXTRA_SOURCES := test_maps.c 756TRUNNER_EXTRA_FILES := 757TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 758TRUNNER_BPF_CFLAGS := 759$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 760 761# Define test_verifier test runner. 762# It is much simpler than test_maps/test_progs and sufficiently different from 763# them (e.g., test.h is using completely pattern), that it's worth just 764# explicitly defining all the rules explicitly. 765verifier/tests.h: verifier/*.c 766 $(shell ( cd verifier/; \ 767 echo '/* Generated header, do not edit */'; \ 768 echo '#ifdef FILL_ARRAY'; \ 769 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 770 echo '#endif' \ 771 ) > verifier/tests.h) 772$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 773 $(call msg,BINARY,,$@) 774 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 775 776# Include find_bit.c to compile xskxceiver. 777EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c 778$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 779 $(call msg,BINARY,,$@) 780 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 781 782$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 783 $(call msg,BINARY,,$@) 784 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 785 786$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 787 $(call msg,BINARY,,$@) 788 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 789 790# Make sure we are able to include and link libbpf against c++. 791CXXFLAGS += $(CFLAGS) 792CXXFLAGS := $(subst -D_GNU_SOURCE=,,$(CXXFLAGS)) 793CXXFLAGS := $(subst -std=gnu11,-std=gnu++11,$(CXXFLAGS)) 794$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 795 $(call msg,CXX,,$@) 796 $(Q)$(CXX) $(CXXFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 797 798# Benchmark runner 799$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 800 $(call msg,CC,,$@) 801 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 802$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 803$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 804$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 805 $(OUTPUT)/perfbuf_bench.skel.h 806$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 807$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 808$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 809$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 810$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 811$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 812$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 813$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 814$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 815$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 816$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 817$(OUTPUT)/bench: LDLIBS += -lm 818$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 819 $(TESTING_HELPERS) \ 820 $(TRACE_HELPERS) \ 821 $(CGROUP_HELPERS) \ 822 $(OUTPUT)/bench_count.o \ 823 $(OUTPUT)/bench_rename.o \ 824 $(OUTPUT)/bench_trigger.o \ 825 $(OUTPUT)/bench_ringbufs.o \ 826 $(OUTPUT)/bench_bloom_filter_map.o \ 827 $(OUTPUT)/bench_bpf_loop.o \ 828 $(OUTPUT)/bench_strncmp.o \ 829 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 830 $(OUTPUT)/bench_local_storage.o \ 831 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 832 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 833 $(OUTPUT)/bench_local_storage_create.o \ 834 $(OUTPUT)/bench_htab_mem.o \ 835 $(OUTPUT)/bench_bpf_crypto.o \ 836 # 837 $(call msg,BINARY,,$@) 838 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 839 840$(OUTPUT)/veristat.o: $(BPFOBJ) 841$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 842 $(call msg,BINARY,,$@) 843 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 844 845# Linking uprobe_multi can fail due to relocation overflows on mips. 846$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 847$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 848 $(call msg,BINARY,,$@) 849 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 850 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 851 852EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 853 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 854 feature bpftool $(TEST_KMOD_TARGETS) \ 855 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 856 no_alu32 cpuv4 bpf_gcc \ 857 liburandom_read.so) \ 858 $(OUTPUT)/FEATURE-DUMP.selftests 859 860.PHONY: docs docs-clean 861 862# Delete partially updated (corrupted) files on error 863.DELETE_ON_ERROR: 864 865DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 866override define INSTALL_RULE 867 $(DEFAULT_INSTALL_RULE) 868 @for DIR in $(TEST_INST_SUBDIRS); do \ 869 mkdir -p $(INSTALL_PATH)/$$DIR; \ 870 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 871 done 872endef 873