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 $(wildcard progs/btf_dump_test_case_*.c) 126 127# Order correspond to 'make run_tests' order 128TEST_PROGS := test_kmod.sh \ 129 test_xdp_redirect.sh \ 130 test_xdp_redirect_multi.sh \ 131 test_xdp_meta.sh \ 132 test_tunnel.sh \ 133 test_lwt_seg6local.sh \ 134 test_lirc_mode2.sh \ 135 test_skb_cgroup_id.sh \ 136 test_flow_dissector.sh \ 137 test_xdp_vlan_mode_generic.sh \ 138 test_xdp_vlan_mode_native.sh \ 139 test_lwt_ip_encap.sh \ 140 test_tcp_check_syncookie.sh \ 141 test_tc_tunnel.sh \ 142 test_tc_edt.sh \ 143 test_xdping.sh \ 144 test_bpftool_build.sh \ 145 test_bpftool.sh \ 146 test_bpftool_metadata.sh \ 147 test_doc_build.sh \ 148 test_xsk.sh \ 149 test_xdp_features.sh 150 151TEST_PROGS_EXTENDED := with_addr.sh \ 152 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 153 test_xdp_vlan.sh test_bpftool.py 154 155# Compile but not part of 'make run_tests' 156TEST_GEN_PROGS_EXTENDED = \ 157 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 158 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 159 xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ 160 xdp_features bpf_test_no_cfi.ko bpf_test_modorder_x.ko \ 161 bpf_test_modorder_y.ko 162 163TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi 164 165ifneq ($(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 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 278 -Wl,--version-script=liburandom_read.map \ 279 -fPIC -shared -o $@ 280 281$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 282 $(call msg,BINARY,,$@) 283 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ 284 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 285 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 286 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 287 -Wl,-rpath=. -o $@ 288 289$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 290 $(call msg,SIGN-FILE,,$@) 291 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ 292 $< -o $@ \ 293 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 294 295$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 296 $(call msg,MOD,,$@) 297 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 298 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod 299 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 300 301$(OUTPUT)/bpf_test_no_cfi.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_no_cfi/Makefile bpf_test_no_cfi/*.[ch]) 302 $(call msg,MOD,,$@) 303 $(Q)$(RM) bpf_test_no_cfi/bpf_test_no_cfi.ko # force re-compilation 304 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_no_cfi 305 $(Q)cp bpf_test_no_cfi/bpf_test_no_cfi.ko $@ 306 307$(OUTPUT)/bpf_test_modorder_x.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_x/Makefile bpf_test_modorder_x/*.[ch]) 308 $(call msg,MOD,,$@) 309 $(Q)$(RM) bpf_test_modorder_x/bpf_test_modorder_x.ko # force re-compilation 310 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_modorder_x 311 $(Q)cp bpf_test_modorder_x/bpf_test_modorder_x.ko $@ 312 313$(OUTPUT)/bpf_test_modorder_y.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_y/Makefile bpf_test_modorder_y/*.[ch]) 314 $(call msg,MOD,,$@) 315 $(Q)$(RM) bpf_test_modorder_y/bpf_test_modorder_y.ko # force re-compilation 316 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_modorder_y 317 $(Q)cp bpf_test_modorder_y/bpf_test_modorder_y.ko $@ 318 319 320DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 321ifneq ($(CROSS_COMPILE),) 322CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool 323TRUNNER_BPFTOOL := $(CROSS_BPFTOOL) 324USE_BOOTSTRAP := "" 325else 326TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL) 327USE_BOOTSTRAP := "bootstrap/" 328endif 329 330$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 331 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 332 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 333 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 334 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \ 335 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ 336 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ 337 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \ 338 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 339 340TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL) 341 342$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 343 344TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 345CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 346UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o 347TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 348JSON_WRITER := $(OUTPUT)/json_writer.o 349CAP_HELPERS := $(OUTPUT)/cap_helpers.o 350NETWORK_HELPERS := $(OUTPUT)/network_helpers.o 351 352$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS) 353$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 354$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 355$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 356$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 357$(OUTPUT)/test_tag: $(TESTING_HELPERS) 358$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 359$(OUTPUT)/xdping: $(TESTING_HELPERS) 360$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 361$(OUTPUT)/test_maps: $(TESTING_HELPERS) 362$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) 363$(OUTPUT)/xsk.o: $(BPFOBJ) 364$(OUTPUT)/test_tcp_check_syncookie_user: $(NETWORK_HELPERS) 365 366BPFTOOL ?= $(DEFAULT_BPFTOOL) 367$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 368 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 369 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 370 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ 371 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ 372 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 373 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 374 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 375 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 376 377ifneq ($(CROSS_COMPILE),) 378$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 379 $(BPFOBJ) | $(BUILD_DIR)/bpftool 380 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 381 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ 382 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ 383 OUTPUT=$(BUILD_DIR)/bpftool/ \ 384 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ 385 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ 386 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin 387endif 388 389all: docs 390 391docs: 392 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 393 -f Makefile.docs \ 394 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 395 396docs-clean: 397 $(Q)$(MAKE) $(submake_extras) \ 398 -f Makefile.docs \ 399 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 400 401$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 402 $(APIDIR)/linux/bpf.h \ 403 | $(BUILD_DIR)/libbpf 404 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 405 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ 406 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' \ 407 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 408 409ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 410$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 411 $(APIDIR)/linux/bpf.h \ 412 | $(HOST_BUILD_DIR)/libbpf 413 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 414 EXTRA_CFLAGS='-g $(OPT_FLAGS)' ARCH= CROSS_COMPILE= \ 415 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 416 CC="$(HOSTCC)" LD="$(HOSTLD)" \ 417 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 418endif 419 420# vmlinux.h is first dumped to a temprorary file and then compared to 421# the previous version. This helps to avoid unnecessary re-builds of 422# $(TRUNNER_BPF_OBJS) 423$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 424ifeq ($(VMLINUX_H),) 425 $(call msg,GEN,,$@) 426 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp 427 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@ 428else 429 $(call msg,CP,,$@) 430 $(Q)cp "$(VMLINUX_H)" $@ 431endif 432 433$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 434 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 435 $(TOOLSDIR)/lib/rbtree.c \ 436 $(TOOLSDIR)/lib/zalloc.c \ 437 $(TOOLSDIR)/lib/string.c \ 438 $(TOOLSDIR)/lib/ctype.c \ 439 $(TOOLSDIR)/lib/str_error_r.c 440 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 441 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \ 442 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 443 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 444 445# Get Clang's default includes on this system, as opposed to those seen by 446# '--target=bpf'. This fixes "missing" files on some architectures/distros, 447# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 448# 449# Use '-idirafter': Don't interfere with include mechanics except where the 450# build would have failed anyways. 451define get_sys_includes 452$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 453 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 454$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \ 455$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \ 456$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}') 457endef 458 459# Determine target endianness. 460IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 461 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 462MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 463 464ifneq ($(CROSS_COMPILE),) 465CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 466endif 467 468CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 469BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 470 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 471 -I$(abspath $(OUTPUT)/../usr/include) \ 472 -Wno-compare-distinct-pointer-types 473# TODO: enable me -Wsign-compare 474 475CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) 476 477$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 478$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 479 480$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 481$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 482 483# Build BPF object using Clang 484# $1 - input .c file 485# $2 - output .o file 486# $3 - CFLAGS 487# $4 - binary name 488define CLANG_BPF_BUILD_RULE 489 $(call msg,CLNG-BPF,$4,$2) 490 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2 491endef 492# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 493define CLANG_NOALU32_BPF_BUILD_RULE 494 $(call msg,CLNG-BPF,$4,$2) 495 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2 496endef 497# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4 498define CLANG_CPUV4_BPF_BUILD_RULE 499 $(call msg,CLNG-BPF,$4,$2) 500 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v4 -o $2 501endef 502# Build BPF object using GCC 503define GCC_BPF_BUILD_RULE 504 $(call msg,GCC-BPF,$4,$2) 505 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2 506endef 507 508SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 509 510LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 511 linked_vars.skel.h linked_maps.skel.h \ 512 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 513 test_usdt.skel.h 514 515LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 516 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 517 core_kern.c core_kern_overflow.c test_ringbuf.c \ 518 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c 519 520# Generate both light skeleton and libbpf skeleton for these 521LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 522 kfunc_call_test_subprog.c 523SKEL_BLACKLIST += $$(LSKELS) 524 525test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 526linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 527linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 528linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 529# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 530# but that's created as a side-effect of the skel.h generation. 531test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 532test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 533test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 534xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 535xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 536xdp_features.skel.h-deps := xdp_features.bpf.o 537 538LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps)) 539LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS)) 540 541HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \ 542 $(addprefix $(BPFDIR)/, bpf_core_read.h \ 543 bpf_endian.h \ 544 bpf_helpers.h \ 545 bpf_tracing.h) 546 547# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 548# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 549# Parameters: 550# $1 - test runner base binary name (e.g., test_progs) 551# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 552define DEFINE_TEST_RUNNER 553 554TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 555TRUNNER_BINARY := $1$(if $2,-)$2 556TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 557 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 558TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 559 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 560TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 561TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 562TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 563TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 564TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 565 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 566 $$(TRUNNER_BPF_SRCS))) 567TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 568TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 569TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 570 571# Evaluate rules now with extra TRUNNER_XXX variables above already defined 572$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 573 574endef 575 576# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 577# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 578# $1 - test runner base binary name (e.g., test_progs) 579# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc) 580define DEFINE_TEST_RUNNER_RULES 581 582ifeq ($($(TRUNNER_OUTPUT)-dir),) 583$(TRUNNER_OUTPUT)-dir := y 584$(TRUNNER_OUTPUT): 585 $$(call msg,MKDIR,,$$@) 586 $(Q)mkdir -p $$@ 587endif 588 589# ensure we set up BPF objects generation rule just once for a given 590# input/output directory combination 591ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 592$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 593$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 594 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 595 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 596 $$(INCLUDE_DIR)/vmlinux.h \ 597 $(HEADERS_FOR_BPF_OBJS) \ 598 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 599 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 600 $(TRUNNER_BPF_CFLAGS) \ 601 $$($$<-CFLAGS) \ 602 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY)) 603 604$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 605 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 606 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 607 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 608 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 609 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 610 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 611 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 612 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 613 614$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 615 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 616 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 617 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 618 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 619 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 620 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 621 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 622 623$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/% 624 625# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites 626.SECONDEXPANSION: 627$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT) 628 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 629 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 630 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 631 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 632 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 633 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 634 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 635 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 636 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 637 638# When the compiler generates a %.d file, only skel basenames (not 639# full paths) are specified as prerequisites for corresponding %.o 640# file. This target makes %.skel.h basename dependent on full paths, 641# linking generated %.d dependency with actual %.skel.h files. 642$(notdir %.skel.h): $(TRUNNER_OUTPUT)/%.skel.h 643 @true 644 645endif 646 647# ensure we set up tests.h header generation rule just once 648ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 649$(TRUNNER_TESTS_DIR)-tests-hdr := y 650$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 651 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 652 $$(shell (echo '/* Generated header, do not edit */'; \ 653 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 654 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 655 ) > $$@) 656endif 657 658# compile individual test files 659# Note: we cd into output directory to ensure embedded BPF object is found 660$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 661 $(TRUNNER_TESTS_DIR)/%.c \ 662 | $(TRUNNER_OUTPUT)/%.test.d 663 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 664 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 665 666$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \ 667 $(TRUNNER_TESTS_DIR)/%.c \ 668 $(TRUNNER_EXTRA_HDRS) \ 669 $(TRUNNER_BPF_SKELS) \ 670 $(TRUNNER_BPF_LSKELS) \ 671 $(TRUNNER_BPF_SKELS_LINKED) \ 672 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 673 674ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),) 675include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d)) 676endif 677 678# add per extra obj CFGLAGS definitions 679$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \ 680 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS))) 681 682$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 683 %.c \ 684 $(TRUNNER_EXTRA_HDRS) \ 685 $(TRUNNER_TESTS_HDR) \ 686 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 687 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 688 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 689 690# non-flavored in-srctree builds receive special treatment, in particular, we 691# do not need to copy extra resources (see e.g. test_btf_dump_case()) 692$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 693ifneq ($2:$(OUTPUT),:$(shell pwd)) 694 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 695 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 696endif 697 698$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS) 699$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS) 700 701# some X.test.o files have runtime dependencies on Y.bpf.o files 702$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS) 703 704$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 705 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 706 $(RESOLVE_BTFIDS) \ 707 $(TRUNNER_BPFTOOL) \ 708 | $(TRUNNER_BINARY)-extras 709 $$(call msg,BINARY,,$$@) 710 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@ 711 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 712 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \ 713 $(OUTPUT)/$(if $2,$2/)bpftool 714 715endef 716 717# Define test_progs test runner. 718TRUNNER_TESTS_DIR := prog_tests 719TRUNNER_BPF_PROGS_DIR := progs 720TRUNNER_EXTRA_SOURCES := test_progs.c \ 721 cgroup_helpers.c \ 722 trace_helpers.c \ 723 network_helpers.c \ 724 testing_helpers.c \ 725 btf_helpers.c \ 726 cap_helpers.c \ 727 unpriv_helpers.c \ 728 netlink_helpers.c \ 729 jit_disasm_helpers.c \ 730 test_loader.c \ 731 xsk.c \ 732 disasm.c \ 733 disasm_helpers.c \ 734 json_writer.c \ 735 flow_dissector_load.h \ 736 ip_check_defrag_frags.h 737TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 738 $(OUTPUT)/bpf_test_no_cfi.ko \ 739 $(OUTPUT)/bpf_test_modorder_x.ko \ 740 $(OUTPUT)/bpf_test_modorder_y.ko \ 741 $(OUTPUT)/liburandom_read.so \ 742 $(OUTPUT)/xdp_synproxy \ 743 $(OUTPUT)/sign-file \ 744 $(OUTPUT)/uprobe_multi \ 745 ima_setup.sh \ 746 verify_sig_setup.sh \ 747 $(wildcard progs/btf_dump_test_case_*.c) \ 748 $(wildcard progs/*.bpf.o) 749TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 750TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 751$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 752 753# Define test_progs-no_alu32 test runner. 754TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 755TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 756$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 757 758# Define test_progs-cpuv4 test runner. 759ifneq ($(CLANG_CPUV4),) 760TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE 761TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 762$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4)) 763endif 764 765# Define test_progs BPF-GCC-flavored test runner. 766ifneq ($(BPF_GCC),) 767TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 768TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 769$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 770endif 771 772# Define test_maps test runner. 773TRUNNER_TESTS_DIR := map_tests 774TRUNNER_BPF_PROGS_DIR := progs 775TRUNNER_EXTRA_SOURCES := test_maps.c 776TRUNNER_EXTRA_FILES := 777TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 778TRUNNER_BPF_CFLAGS := 779$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 780 781# Define test_verifier test runner. 782# It is much simpler than test_maps/test_progs and sufficiently different from 783# them (e.g., test.h is using completely pattern), that it's worth just 784# explicitly defining all the rules explicitly. 785verifier/tests.h: verifier/*.c 786 $(shell ( cd verifier/; \ 787 echo '/* Generated header, do not edit */'; \ 788 echo '#ifdef FILL_ARRAY'; \ 789 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 790 echo '#endif' \ 791 ) > verifier/tests.h) 792$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 793 $(call msg,BINARY,,$@) 794 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 795 796# Include find_bit.c to compile xskxceiver. 797EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c 798$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 799 $(call msg,BINARY,,$@) 800 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 801 802$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 803 $(call msg,BINARY,,$@) 804 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 805 806$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 807 $(call msg,BINARY,,$@) 808 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 809 810# Make sure we are able to include and link libbpf against c++. 811$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 812 $(call msg,CXX,,$@) 813 $(Q)$(CXX) $(subst -D_GNU_SOURCE=,,$(CFLAGS)) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 814 815# Benchmark runner 816$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 817 $(call msg,CC,,$@) 818 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 819$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 820$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 821$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 822 $(OUTPUT)/perfbuf_bench.skel.h 823$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 824$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 825$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 826$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 827$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 828$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 829$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h 830$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h 831$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h 832$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h 833$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 834$(OUTPUT)/bench: LDLIBS += -lm 835$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 836 $(TESTING_HELPERS) \ 837 $(TRACE_HELPERS) \ 838 $(CGROUP_HELPERS) \ 839 $(OUTPUT)/bench_count.o \ 840 $(OUTPUT)/bench_rename.o \ 841 $(OUTPUT)/bench_trigger.o \ 842 $(OUTPUT)/bench_ringbufs.o \ 843 $(OUTPUT)/bench_bloom_filter_map.o \ 844 $(OUTPUT)/bench_bpf_loop.o \ 845 $(OUTPUT)/bench_strncmp.o \ 846 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 847 $(OUTPUT)/bench_local_storage.o \ 848 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \ 849 $(OUTPUT)/bench_bpf_hashmap_lookup.o \ 850 $(OUTPUT)/bench_local_storage_create.o \ 851 $(OUTPUT)/bench_htab_mem.o \ 852 $(OUTPUT)/bench_bpf_crypto.o \ 853 # 854 $(call msg,BINARY,,$@) 855 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 856 857$(OUTPUT)/veristat.o: $(BPFOBJ) 858$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 859 $(call msg,BINARY,,$@) 860 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 861 862# Linking uprobe_multi can fail due to relocation overflows on mips. 863$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot) 864$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld 865 $(call msg,BINARY,,$@) 866 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \ 867 $(filter-out %.ld,$^) $(LDLIBS) -o $@ 868 869EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 870 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 871 feature bpftool \ 872 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \ 873 no_alu32 cpuv4 bpf_gcc bpf_testmod.ko \ 874 bpf_test_no_cfi.ko \ 875 bpf_test_modorder_x.ko \ 876 bpf_test_modorder_y.ko \ 877 liburandom_read.so) \ 878 $(OUTPUT)/FEATURE-DUMP.selftests 879 880.PHONY: docs docs-clean 881 882# Delete partially updated (corrupted) files on error 883.DELETE_ON_ERROR: 884 885DEFAULT_INSTALL_RULE := $(INSTALL_RULE) 886override define INSTALL_RULE 887 $(DEFAULT_INSTALL_RULE) 888 @for DIR in $(TEST_INST_SUBDIRS); do \ 889 mkdir -p $(INSTALL_PATH)/$$DIR; \ 890 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ 891 done 892endef 893