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 13BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool 14APIDIR := $(TOOLSINCDIR)/uapi 15ifneq ($(O),) 16GENDIR := $(O)/include/generated 17else 18GENDIR := $(abspath ../../../../include/generated) 19endif 20GENHDR := $(GENDIR)/autoconf.h 21PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config 22 23ifneq ($(wildcard $(GENHDR)),) 24 GENFLAGS := -DHAVE_GENHDR 25endif 26 27BPF_GCC ?= $(shell command -v bpf-gcc;) 28SAN_CFLAGS ?= 29SAN_LDFLAGS ?= $(SAN_CFLAGS) 30RELEASE ?= 31OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0) 32 33LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null) 34LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) 35 36ifeq ($(srctree),) 37srctree := $(patsubst %/,%,$(dir $(CURDIR))) 38srctree := $(patsubst %/,%,$(dir $(srctree))) 39srctree := $(patsubst %/,%,$(dir $(srctree))) 40srctree := $(patsubst %/,%,$(dir $(srctree))) 41endif 42 43CFLAGS += -g $(OPT_FLAGS) -rdynamic \ 44 -Wall -Werror -fno-omit-frame-pointer \ 45 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ 46 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 47 -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT) 48LDFLAGS += $(SAN_LDFLAGS) 49LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread 50 51PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") 52PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) 53LDLIBS += $(PCAP_LIBS) 54CFLAGS += $(PCAP_CFLAGS) 55 56# The following tests perform type punning and they may break strict 57# aliasing rules, which are exploited by both GCC and clang by default 58# while optimizing. This can lead to broken programs. 59progs/bind4_prog.c-CFLAGS := -fno-strict-aliasing 60progs/bind6_prog.c-CFLAGS := -fno-strict-aliasing 61progs/dynptr_fail.c-CFLAGS := -fno-strict-aliasing 62progs/linked_list_fail.c-CFLAGS := -fno-strict-aliasing 63progs/map_kptr_fail.c-CFLAGS := -fno-strict-aliasing 64progs/syscall.c-CFLAGS := -fno-strict-aliasing 65progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing 66progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing 67progs/timer_crash.c-CFLAGS := -fno-strict-aliasing 68progs/test_global_func9.c-CFLAGS := -fno-strict-aliasing 69progs/verifier_nocsr.c-CFLAGS := -fno-strict-aliasing 70 71# Some utility functions use LLVM libraries 72jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS) 73 74ifneq ($(LLVM),) 75# Silence some warnings when compiled with clang 76CFLAGS += -Wno-unused-command-line-argument 77endif 78 79# Check whether bpf cpu=v4 is supported or not by clang 80ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),) 81CLANG_CPUV4 := 1 82endif 83 84# Order correspond to 'make run_tests' order 85TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 86 test_sock test_sockmap \ 87 test_tcpnotify_user test_sysctl \ 88 test_progs-no_alu32 89TEST_INST_SUBDIRS := no_alu32 90 91# Also test bpf-gcc, if present 92ifneq ($(BPF_GCC),) 93TEST_GEN_PROGS += test_progs-bpf_gcc 94TEST_INST_SUBDIRS += bpf_gcc 95 96# The following tests contain C code that, although technically legal, 97# triggers GCC warnings that cannot be disabled: declaration of 98# anonymous struct types in function parameter lists. 99progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error 100progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error 101progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error 102progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error 103progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error 104 105# The following tests do type-punning, via the __imm_insn macro, from 106# `struct bpf_insn' to long and then uses the value. This triggers an 107# "is used uninitialized" warning in GCC due to strict-aliasing 108# rules. 109progs/verifier_ref_tracking.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 110progs/verifier_unpriv.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 111progs/verifier_cgroup_storage.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 112progs/verifier_ld_ind.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 113progs/verifier_map_ret_val.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 114progs/verifier_spill_fill.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 115progs/verifier_subprog_precision.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 116progs/verifier_uninit.c-bpf_gcc-CFLAGS := -fno-strict-aliasing 117endif 118 119ifneq ($(CLANG_CPUV4),) 120TEST_GEN_PROGS += test_progs-cpuv4 121TEST_INST_SUBDIRS += cpuv4 122endif 123 124TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o 125TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 126 127# Order correspond to 'make run_tests' order 128TEST_PROGS := test_kmod.sh \ 129 test_xdp_redirect.sh \ 130 test_xdp_redirect_multi.sh \ 131 test_xdp_meta.sh \ 132 test_tunnel.sh \ 133 test_lwt_seg6local.sh \ 134 test_lirc_mode2.sh \ 135 test_skb_cgroup_id.sh \ 136 test_flow_dissector.sh \ 137 test_xdp_vlan_mode_generic.sh \ 138 test_xdp_vlan_mode_native.sh \ 139 test_lwt_ip_encap.sh \ 140 test_tcp_check_syncookie.sh \ 141 test_tc_tunnel.sh \ 142 test_tc_edt.sh \ 143 test_xdping.sh \ 144 test_bpftool_build.sh \ 145 test_bpftool.sh \ 146 test_bpftool_metadata.sh \ 147 test_doc_build.sh \ 148 test_xsk.sh \ 149 test_xdp_features.sh 150 151TEST_PROGS_EXTENDED := with_addr.sh \ 152 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 153 test_xdp_vlan.sh test_bpftool.py 154 155# Compile but not part of 'make run_tests' 156TEST_GEN_PROGS_EXTENDED = \ 157 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 158 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 159 xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ 160 xdp_features bpf_test_no_cfi.ko 161 162TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi 163 164ifneq ($(V),1) 165submake_extras := feature_display=0 166endif 167 168# override lib.mk's default rules 169OVERRIDE_TARGETS := 1 170override define CLEAN 171 $(call msg,CLEAN) 172 $(Q)$(RM) -r $(TEST_GEN_PROGS) 173 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 174 $(Q)$(RM) -r $(TEST_GEN_FILES) 175 $(Q)$(RM) -r $(EXTRA_CLEAN) 176 $(Q)$(MAKE) -C bpf_testmod clean 177 $(Q)$(MAKE) docs-clean 178endef 179 180include ../lib.mk 181 182NON_CHECK_FEAT_TARGETS := clean docs-clean 183CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none")) 184ifneq ($(CHECK_FEAT),) 185FEATURE_USER := .selftests 186FEATURE_TESTS := llvm 187FEATURE_DISPLAY := $(FEATURE_TESTS) 188 189# Makefile.feature expects OUTPUT to end with a slash 190ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) 191$(let OUTPUT,$(OUTPUT)/,\ 192 $(eval include ../../../build/Makefile.feature)) 193else 194OUTPUT := $(OUTPUT)/ 195$(eval include ../../../build/Makefile.feature) 196OUTPUT := $(patsubst %/,%,$(OUTPUT)) 197endif 198endif 199 200ifeq ($(feature-llvm),1) 201 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT 202 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets 203 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict 204 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) 205 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) 206 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)) 207 LLVM_LDLIBS += -lstdc++ 208 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) 209endif 210 211SCRATCH_DIR := $(OUTPUT)/tools 212BUILD_DIR := $(SCRATCH_DIR)/build 213INCLUDE_DIR := $(SCRATCH_DIR)/include 214BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 215ifneq ($(CROSS_COMPILE),) 216HOST_BUILD_DIR := $(BUILD_DIR)/host 217HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 218HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 219else 220HOST_BUILD_DIR := $(BUILD_DIR) 221HOST_SCRATCH_DIR := $(SCRATCH_DIR) 222HOST_INCLUDE_DIR := $(INCLUDE_DIR) 223endif 224HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 225RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 226RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 227 228VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 229 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 230 ../../../../vmlinux \ 231 /sys/kernel/btf/vmlinux \ 232 /boot/vmlinux-$(shell uname -r) 233VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 234ifeq ($(VMLINUX_BTF),) 235$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 236endif 237 238# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 239# to build individual tests. 240# NOTE: Semicolon at the end is critical to override lib.mk's default static 241# rule for binaries. 242$(notdir $(TEST_GEN_PROGS) \ 243 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ; 244 245# sort removes libbpf duplicates when not cross-building 246MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 247 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \ 248 $(HOST_BUILD_DIR)/resolve_btfids \ 249 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 250$(MAKE_DIRS): 251 $(call msg,MKDIR,,$@) 252 $(Q)mkdir -p $@ 253 254$(OUTPUT)/%.o: %.c 255 $(call msg,CC,,$@) 256 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 257 258$(OUTPUT)/%:%.c 259 $(call msg,BINARY,,$@) 260 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 261 262# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 263ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) 264LLD := lld 265else 266LLD := ld 267endif 268 269# Filter out -static for liburandom_read.so and its dependent targets so that static builds 270# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 271$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map 272 $(call msg,LIB,,$@) 273 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 274 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 275 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ 276 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 277 -Wl,--version-script=liburandom_read.map \ 278 -fPIC -shared -o $@ 279 280$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 281 $(call msg,BINARY,,$@) 282 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 283 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 284 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 285 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 286 -Wl,-rpath=. -o $@ 287 288$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 289 $(call msg,SIGN-FILE,,$@) 290 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 291 $< -o $@ \ 292 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 293 294$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 295 $(call msg,MOD,,$@) 296 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 297 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod 298 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 299 300$(OUTPUT)/bpf_test_no_cfi.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_no_cfi/Makefile bpf_test_no_cfi/*.[ch]) 301 $(call msg,MOD,,$@) 302 $(Q)$(RM) bpf_test_no_cfi/bpf_test_no_cfi.ko # force re-compilation 303 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_no_cfi 304 $(Q)cp bpf_test_no_cfi/bpf_test_no_cfi.ko $@ 305 306DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 307ifneq ($(CROSS_COMPILE),) 308CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 309TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 310USE_BOOTSTRAP := "" 311else 312TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 313USE_BOOTSTRAP := "bootstrap/" 314endif 315 316$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 317 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 318 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 319 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 320 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ 321 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 322 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ 323 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \ 324 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 325 326TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 327 328$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 329 330TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 331CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 332UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 333TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 334JSON_WRITER := $(OUTPUT)/json_writer.o 335CAP_HELPERS := $(OUTPUT)/cap_helpers.o 336NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 337 338$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS) 339$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 340$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 341$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 342$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 343$(OUTPUT)/test_tag: $(TESTING_HELPERS) 344$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 345$(OUTPUT)/xdping: $(TESTING_HELPERS) 346$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 347$(OUTPUT)/test_maps: $(TESTING_HELPERS) 348$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 349$(OUTPUT)/xsk.o: $(BPFOBJ) 350$(OUTPUT)/test_tcp_check_syncookie_user: $(NETWORK_HELPERS) 351 352BPFTOOL ?= $(DEFAULT_BPFTOOL) 353$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 354 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 355 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 356 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 357 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ 358 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 359 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 360 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 361 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 362 363ifneq ($(CROSS_COMPILE),) 364$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 365 $(BPFOBJ) | $(BUILD_DIR)/bpftool 366 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 367 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 368 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ 369 OUTPUT=$(BUILD_DIR)/bpftool/ \ 370 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 371 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 372 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 373endif 374 375all: docs 376 377docs: 378 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 379 -f Makefile.docs \ 380 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 381 382docs-clean: 383 $(Q)$(MAKE) $(submake_extras) \ 384 -f Makefile.docs \ 385 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 386 387$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 388 $(APIDIR)/linux/bpf.h \ 389 | $(BUILD_DIR)/libbpf 390 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 391 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ 392 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' \ 393 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 394 395ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 396$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 397 $(APIDIR)/linux/bpf.h \ 398 | $(HOST_BUILD_DIR)/libbpf 399 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 400 EXTRA_CFLAGS='-g $(OPT_FLAGS)' ARCH= CROSS_COMPILE= \ 401 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 402 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 403 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 404endif 405 406# vmlinux.h is first dumped to a temprorary file and then compared to 407# the previous version. This helps to avoid unnecessary re-builds of 408# $(TRUNNER_BPF_OBJS) 409$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 410ifeq ($(VMLINUX_H),) 411 $(call msg,GEN,,$@) 412 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 413 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 414else 415 $(call msg,CP,,$@) 416 $(Q)cp "$(VMLINUX_H)" $@ 417endif 418 419$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 420 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 421 $(TOOLSDIR)/lib/rbtree.c \ 422 $(TOOLSDIR)/lib/zalloc.c \ 423 $(TOOLSDIR)/lib/string.c \ 424 $(TOOLSDIR)/lib/ctype.c \ 425 $(TOOLSDIR)/lib/str_error_r.c 426 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 427 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 428 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 429 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 430 431# Get Clang's default includes on this system, as opposed to those seen by 432# '--target=bpf'. This fixes "missing" files on some architectures/distros, 433# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 434# 435# Use '-idirafter': Don't interfere with include mechanics except where the 436# build would have failed anyways. 437define get_sys_includes 438$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 439 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 440$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 441$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 442$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 443endef 444 445# Determine target endianness. 446IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 447 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 448MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 449 450ifneq ($(CROSS_COMPILE),) 451CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 452endif 453 454CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 455BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 456 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 457 -I$(abspath $(OUTPUT)/../usr/include) \ 458 -Wno-compare-distinct-pointer-types 459# TODO: enable me -Wsign-compare 460 461CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 462 463$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 464$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 465 466$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 467$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 468 469# Build BPF object using Clang 470# $1 - input .c file 471# $2 - output .o file 472# $3 - CFLAGS 473# $4 - binary name 474define CLANG_BPF_BUILD_RULE 475 $(call msg,CLNG-BPF,$4,$2) 476 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2 477endef 478# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 479define CLANG_NOALU32_BPF_BUILD_RULE 480 $(call msg,CLNG-BPF,$4,$2) 481 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2 482endef 483# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 484define CLANG_CPUV4_BPF_BUILD_RULE 485 $(call msg,CLNG-BPF,$4,$2) 486 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v4 -o $2 487endef 488# Build BPF object using GCC 489define GCC_BPF_BUILD_RULE 490 $(call msg,GCC-BPF,$4,$2) 491 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 492endef 493 494SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 495 496LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 497 linked_vars.skel.h linked_maps.skel.h \ 498 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 499 test_usdt.skel.h 500 501LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 502 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 503 core_kern.c core_kern_overflow.c test_ringbuf.c \ 504 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c 505 506# Generate both light skeleton and libbpf skeleton for these 507LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 508 kfunc_call_test_subprog.c 509SKEL_BLACKLIST += $$(LSKELS) 510 511test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 512linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 513linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 514linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 515# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 516# but that's created as a side-effect of the skel.h generation. 517test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 518test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 519test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 520xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 521xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 522xdp_features.skel.h-deps := xdp_features.bpf.o 523 524LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 525LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 526 527HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 528 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 529 bpf_endian.h \ 530 bpf_helpers.h \ 531 bpf_tracing.h) 532 533# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 534# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 535# Parameters: 536# $1 - test runner base binary name (e.g., test_progs) 537# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 538define DEFINE_TEST_RUNNER 539 540TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 541TRUNNER_BINARY := $1$(if $2,-)$2 542TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 543 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 544TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 545 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 546TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 547TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 548TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 549TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 550TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 551 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 552 $$(TRUNNER_BPF_SRCS))) 553TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 554TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 555TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 556 557# Evaluate rules now with extra TRUNNER_XXX variables above already defined 558$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 559 560endef 561 562# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 563# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 564# $1 - test runner base binary name (e.g., test_progs) 565# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 566define DEFINE_TEST_RUNNER_RULES 567 568ifeq ($($(TRUNNER_OUTPUT)-dir),) 569$(TRUNNER_OUTPUT)-dir := y 570$(TRUNNER_OUTPUT): 571 $$(call msg,MKDIR,,$$@) 572 $(Q)mkdir -p $$@ 573endif 574 575# ensure we set up BPF objects generation rule just once for a given 576# input/output directory combination 577ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 578$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 579$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 580 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 581 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 582 $$(INCLUDE_DIR)/vmlinux.h \ 583 $(HEADERS_FOR_BPF_OBJS) \ 584 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 585 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 586 $(TRUNNER_BPF_CFLAGS) \ 587 $$($$<-CFLAGS) \ 588 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 589 590$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 591 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 592 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 593 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 594 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 595 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 596 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 597 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 598 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 599 600$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 601 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 602 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 603 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 604 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 605 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 606 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 607 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 608 609$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 610 611# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 612.SECONDEXPANSION: 613$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 614 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 615 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 616 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 617 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 618 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 619 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 620 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 621 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 622 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 623 624# When the compiler generates a %.d file, only skel basenames (not 625# full paths) are specified as prerequisites for corresponding %.o 626# file. This target makes %.skel.h basename dependent on full paths, 627# linking generated %.d dependency with actual %.skel.h files. 628$(notdir %.skel.h): $(TRUNNER_OUTPUT)/%.skel.h 629 @true 630 631endif 632 633# ensure we set up tests.h header generation rule just once 634ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 635$(TRUNNER_TESTS_DIR)-tests-hdr := y 636$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 637 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 638 $$(shell (echo '/* Generated header, do not edit */'; \ 639 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 640 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 641 ) > $$@) 642endif 643 644# compile individual test files 645# Note: we cd into output directory to ensure embedded BPF object is found 646$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 647 $(TRUNNER_TESTS_DIR)/%.c \ 648 | $(TRUNNER_OUTPUT)/%.test.d 649 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 650 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 651 652$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 653 $(TRUNNER_TESTS_DIR)/%.c \ 654 $(TRUNNER_EXTRA_HDRS) \ 655 $(TRUNNER_BPF_SKELS) \ 656 $(TRUNNER_BPF_LSKELS) \ 657 $(TRUNNER_BPF_SKELS_LINKED) \ 658 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 659 660ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 661include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 662endif 663 664# add per extra obj CFGLAGS definitions 665$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 666 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 667 668$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 669 %.c \ 670 $(TRUNNER_EXTRA_HDRS) \ 671 $(TRUNNER_TESTS_HDR) \ 672 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 673 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 674 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 675 676# non-flavored in-srctree builds receive special treatment, in particular, we 677# do not need to copy extra resources (see e.g. test_btf_dump_case()) 678$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 679ifneq ($2:$(OUTPUT),:$(shell pwd)) 680 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 681 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 682endif 683 684$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS) 685$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS) 686 687# some X.test.o files have runtime dependencies on Y.bpf.o files 688$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 689 690$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 691 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 692 $(RESOLVE_BTFIDS) \ 693 $(TRUNNER_BPFTOOL) \ 694 | $(TRUNNER_BINARY)-extras 695 $$(call msg,BINARY,,$$@) 696 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@ 697 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 698 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 699 $(OUTPUT)/$(if $2,$2/)bpftool 700 701endef 702 703# Define test_progs test runner. 704TRUNNER_TESTS_DIR := prog_tests 705TRUNNER_BPF_PROGS_DIR := progs 706TRUNNER_EXTRA_SOURCES := test_progs.c \ 707 cgroup_helpers.c \ 708 trace_helpers.c \ 709 network_helpers.c \ 710 testing_helpers.c \ 711 btf_helpers.c \ 712 cap_helpers.c \ 713 unpriv_helpers.c \ 714 netlink_helpers.c \ 715 jit_disasm_helpers.c \ 716 test_loader.c \ 717 xsk.c \ 718 disasm.c \ 719 disasm_helpers.c \ 720 json_writer.c \ 721 flow_dissector_load.h \ 722 ip_check_defrag_frags.h 723TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 724 $(OUTPUT)/bpf_test_no_cfi.ko \ 725 $(OUTPUT)/liburandom_read.so \ 726 $(OUTPUT)/xdp_synproxy \ 727 $(OUTPUT)/sign-file \ 728 $(OUTPUT)/uprobe_multi \ 729 ima_setup.sh \ 730 verify_sig_setup.sh \ 731 $(wildcard progs/btf_dump_test_case_*.c) \ 732 $(wildcard progs/*.bpf.o) 733TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 734TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 735$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 736 737# Define test_progs-no_alu32 test runner. 738TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 739TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 740$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 741 742# Define test_progs-cpuv4 test runner. 743ifneq ($(CLANG_CPUV4),) 744TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 745TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 746$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 747endif 748 749# Define test_progs BPF-GCC-flavored test runner. 750ifneq ($(BPF_GCC),) 751TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 752TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 753$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 754endif 755 756# Define test_maps test runner. 757TRUNNER_TESTS_DIR := map_tests 758TRUNNER_BPF_PROGS_DIR := progs 759TRUNNER_EXTRA_SOURCES := test_maps.c 760TRUNNER_EXTRA_FILES := 761TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 762TRUNNER_BPF_CFLAGS := 763$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 764 765# Define test_verifier test runner. 766# It is much simpler than test_maps/test_progs and sufficiently different from 767# them (e.g., test.h is using completely pattern), that it's worth just 768# explicitly defining all the rules explicitly. 769verifier/tests.h: verifier/*.c 770 $(shell ( cd verifier/; \ 771 echo '/* Generated header, do not edit */'; \ 772 echo '#ifdef FILL_ARRAY'; \ 773 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 774 echo '#endif' \ 775 ) > verifier/tests.h) 776$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 777 $(call msg,BINARY,,$@) 778 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 779 780# Include find_bit.c to compile xskxceiver. 781EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c 782$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 783 $(call msg,BINARY,,$@) 784 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 785 786$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 787 $(call msg,BINARY,,$@) 788 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 789 790$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 791 $(call msg,BINARY,,$@) 792 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 793 794# Make sure we are able to include and link libbpf against c++. 795$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 796 $(call msg,CXX,,$@) 797 $(Q)$(CXX) $(subst -D_GNU_SOURCE=,,$(CFLAGS)) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 798 799# Benchmark runner 800$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 801 $(call msg,CC,,$@) 802 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 803$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 804$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 805$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 806 $(OUTPUT)/perfbuf_bench.skel.h 807$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 808$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 809$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 810$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 811$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 812$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 813$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 814$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 815$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 816$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 817$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 818$(OUTPUT)/bench: LDLIBS += -lm 819$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 820 $(TESTING_HELPERS) \ 821 $(TRACE_HELPERS) \ 822 $(CGROUP_HELPERS) \ 823 $(OUTPUT)/bench_count.o \ 824 $(OUTPUT)/bench_rename.o \ 825 $(OUTPUT)/bench_trigger.o \ 826 $(OUTPUT)/bench_ringbufs.o \ 827 $(OUTPUT)/bench_bloom_filter_map.o \ 828 $(OUTPUT)/bench_bpf_loop.o \ 829 $(OUTPUT)/bench_strncmp.o \ 830 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 831 $(OUTPUT)/bench_local_storage.o \ 832 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 833 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 834 $(OUTPUT)/bench_local_storage_create.o \ 835 $(OUTPUT)/bench_htab_mem.o \ 836 $(OUTPUT)/bench_bpf_crypto.o \ 837 # 838 $(call msg,BINARY,,$@) 839 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 840 841$(OUTPUT)/veristat.o: $(BPFOBJ) 842$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 843 $(call msg,BINARY,,$@) 844 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 845 846# Linking uprobe_multi can fail due to relocation overflows on mips. 847$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 848$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 849 $(call msg,BINARY,,$@) 850 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 851 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 852 853EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 854 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 855 feature bpftool \ 856 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 857 no_alu32 cpuv4 bpf_gcc bpf_testmod.ko \ 858 bpf_test_no_cfi.ko \ 859 liburandom_read.so) \ 860 $(OUTPUT)/FEATURE-DUMP.selftests 861 862.PHONY: docs docs-clean 863 864# Delete partially updated (corrupted) files on error 865.DELETE_ON_ERROR: 866 867DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 868override define INSTALL_RULE 869 $(DEFAULT_INSTALL_RULE) 870 @for DIR in $(TEST_INST_SUBDIRS); do \ 871 mkdir -p $(INSTALL_PATH)/$$DIR; \ 872 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 873 done 874endef 875