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 15GENDIR := $(abspath ../../../../include/generated) 16GENHDR := $(GENDIR)/autoconf.h 17HOSTPKG_CONFIG := pkg-config 18 19ifneq ($(wildcard $(GENHDR)),) 20 GENFLAGS := -DHAVE_GENHDR 21endif 22 23BPF_GCC ?= $(shell command -v bpf-gcc;) 24SAN_CFLAGS ?= 25CFLAGS += -g -O0 -rdynamic -Wall -Werror $(GENFLAGS) $(SAN_CFLAGS) \ 26 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ 27 -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT) 28LDFLAGS += $(SAN_CFLAGS) 29LDLIBS += -lelf -lz -lrt -lpthread 30 31# Silence some warnings when compiled with clang 32ifneq ($(LLVM),) 33CFLAGS += -Wno-unused-command-line-argument 34endif 35 36# Order correspond to 'make run_tests' order 37TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ 38 test_verifier_log test_dev_cgroup \ 39 test_sock test_sockmap get_cgroup_id_user \ 40 test_cgroup_storage \ 41 test_tcpnotify_user test_sysctl \ 42 test_progs-no_alu32 43 44# Also test bpf-gcc, if present 45ifneq ($(BPF_GCC),) 46TEST_GEN_PROGS += test_progs-bpf_gcc 47endif 48 49TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o 50TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 51 52# Order correspond to 'make run_tests' order 53TEST_PROGS := test_kmod.sh \ 54 test_xdp_redirect.sh \ 55 test_xdp_redirect_multi.sh \ 56 test_xdp_meta.sh \ 57 test_xdp_veth.sh \ 58 test_offload.py \ 59 test_sock_addr.sh \ 60 test_tunnel.sh \ 61 test_lwt_seg6local.sh \ 62 test_lirc_mode2.sh \ 63 test_skb_cgroup_id.sh \ 64 test_flow_dissector.sh \ 65 test_xdp_vlan_mode_generic.sh \ 66 test_xdp_vlan_mode_native.sh \ 67 test_lwt_ip_encap.sh \ 68 test_tcp_check_syncookie.sh \ 69 test_tc_tunnel.sh \ 70 test_tc_edt.sh \ 71 test_xdping.sh \ 72 test_bpftool_build.sh \ 73 test_bpftool.sh \ 74 test_bpftool_metadata.sh \ 75 test_doc_build.sh \ 76 test_xsk.sh \ 77 test_xdp_features.sh 78 79TEST_PROGS_EXTENDED := with_addr.sh \ 80 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \ 81 test_xdp_vlan.sh test_bpftool.py 82 83# Compile but not part of 'make run_tests' 84TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ 85 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 86 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 87 xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ 88 xdp_features 89 90TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read $(OUTPUT)/sign-file 91TEST_GEN_FILES += liburandom_read.so 92 93# Emit succinct information message describing current building step 94# $1 - generic step name (e.g., CC, LINK, etc); 95# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor]; 96# $3 - target (assumed to be file); only file name will be emitted; 97# $4 - optional extra arg, emitted as-is, if provided. 98ifeq ($(V),1) 99Q = 100msg = 101else 102Q = @ 103msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))"; 104MAKEFLAGS += --no-print-directory 105submake_extras := feature_display=0 106endif 107 108# override lib.mk's default rules 109OVERRIDE_TARGETS := 1 110override define CLEAN 111 $(call msg,CLEAN) 112 $(Q)$(RM) -r $(TEST_GEN_PROGS) 113 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED) 114 $(Q)$(RM) -r $(TEST_GEN_FILES) 115 $(Q)$(RM) -r $(EXTRA_CLEAN) 116 $(Q)$(MAKE) -C bpf_testmod clean 117 $(Q)$(MAKE) docs-clean 118endef 119 120include ../lib.mk 121 122SCRATCH_DIR := $(OUTPUT)/tools 123BUILD_DIR := $(SCRATCH_DIR)/build 124INCLUDE_DIR := $(SCRATCH_DIR)/include 125BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 126ifneq ($(CROSS_COMPILE),) 127HOST_BUILD_DIR := $(BUILD_DIR)/host 128HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 129HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include 130else 131HOST_BUILD_DIR := $(BUILD_DIR) 132HOST_SCRATCH_DIR := $(SCRATCH_DIR) 133HOST_INCLUDE_DIR := $(INCLUDE_DIR) 134endif 135HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 136RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 137RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/ 138 139VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 140 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 141 ../../../../vmlinux \ 142 /sys/kernel/btf/vmlinux \ 143 /boot/vmlinux-$(shell uname -r) 144VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 145ifeq ($(VMLINUX_BTF),) 146$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 147endif 148 149# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 150# to build individual tests. 151# NOTE: Semicolon at the end is critical to override lib.mk's default static 152# rule for binaries. 153$(notdir $(TEST_GEN_PROGS) \ 154 $(TEST_PROGS) \ 155 $(TEST_PROGS_EXTENDED) \ 156 $(TEST_GEN_PROGS_EXTENDED) \ 157 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; 158 159# sort removes libbpf duplicates when not cross-building 160MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 161 $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \ 162 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR)) 163$(MAKE_DIRS): 164 $(call msg,MKDIR,,$@) 165 $(Q)mkdir -p $@ 166 167$(OUTPUT)/%.o: %.c 168 $(call msg,CC,,$@) 169 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 170 171$(OUTPUT)/%:%.c 172 $(call msg,BINARY,,$@) 173 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 174 175# LLVM's ld.lld doesn't support all the architectures, so use it only on x86 176ifeq ($(SRCARCH),x86) 177LLD := lld 178else 179LLD := ld 180endif 181 182# Filter out -static for liburandom_read.so and its dependent targets so that static builds 183# do not fail. Static builds leave urandom_read relying on system-wide shared libraries. 184$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c 185 $(call msg,LIB,,$@) 186 $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ 187 $^ $(filter-out -static,$(LDLIBS)) \ 188 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 189 -fPIC -shared -o $@ 190 191$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so 192 $(call msg,BINARY,,$@) 193 $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ 194 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ 195 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ 196 -Wl,-rpath=. -o $@ 197 198$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c 199 $(call msg,SIGN-FILE,,$@) 200 $(Q)$(CC) $(shell $(HOSTPKG_CONFIG)--cflags libcrypto 2> /dev/null) \ 201 $< -o $@ \ 202 $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) 203 204$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 205 $(call msg,MOD,,$@) 206 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 207 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod 208 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 209 210DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 211 212$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) 213 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 214 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \ 215 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 216 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf \ 217 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \ 218 cp $(RUNQSLOWER_OUTPUT)runqslower $@ 219 220TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL) 221 222$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) 223 224CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o 225TESTING_HELPERS := $(OUTPUT)/testing_helpers.o 226TRACE_HELPERS := $(OUTPUT)/trace_helpers.o 227CAP_HELPERS := $(OUTPUT)/cap_helpers.o 228 229$(OUTPUT)/test_dev_cgroup: $(CGROUP_HELPERS) $(TESTING_HELPERS) 230$(OUTPUT)/test_skb_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) 231$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS) 232$(OUTPUT)/test_sock_addr: $(CGROUP_HELPERS) $(TESTING_HELPERS) 233$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS) 234$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS) 235$(OUTPUT)/get_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) 236$(OUTPUT)/test_cgroup_storage: $(CGROUP_HELPERS) $(TESTING_HELPERS) 237$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS) 238$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS) 239$(OUTPUT)/test_tag: $(TESTING_HELPERS) 240$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS) 241$(OUTPUT)/xdping: $(TESTING_HELPERS) 242$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) 243$(OUTPUT)/test_maps: $(TESTING_HELPERS) 244$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) 245$(OUTPUT)/xsk.o: $(BPFOBJ) 246 247BPFTOOL ?= $(DEFAULT_BPFTOOL) 248$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 249 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 250 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 251 ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) \ 252 EXTRA_CFLAGS='-g -O0' \ 253 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 254 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ 255 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ 256 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin 257 258all: docs 259 260docs: 261 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 262 -f Makefile.docs \ 263 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 264 265docs-clean: 266 $(Q)$(MAKE) $(submake_extras) \ 267 -f Makefile.docs \ 268 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 269 270$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 271 $(APIDIR)/linux/bpf.h \ 272 | $(BUILD_DIR)/libbpf 273 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 274 EXTRA_CFLAGS='-g -O0' \ 275 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 276 277ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 278$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 279 $(APIDIR)/linux/bpf.h \ 280 | $(HOST_BUILD_DIR)/libbpf 281 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 282 EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \ 283 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \ 284 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 285endif 286 287$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 288ifeq ($(VMLINUX_H),) 289 $(call msg,GEN,,$@) 290 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@ 291else 292 $(call msg,CP,,$@) 293 $(Q)cp "$(VMLINUX_H)" $@ 294endif 295 296$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 297 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 298 $(TOOLSDIR)/lib/rbtree.c \ 299 $(TOOLSDIR)/lib/zalloc.c \ 300 $(TOOLSDIR)/lib/string.c \ 301 $(TOOLSDIR)/lib/ctype.c \ 302 $(TOOLSDIR)/lib/str_error_r.c 303 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 304 CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \ 305 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \ 306 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 307 308# Get Clang's default includes on this system, as opposed to those seen by 309# '-target bpf'. This fixes "missing" files on some architectures/distros, 310# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 311# 312# Use '-idirafter': Don't interfere with include mechanics except where the 313# build would have failed anyways. 314define get_sys_includes 315$(shell $(1) $(2) -v -E - </dev/null 2>&1 \ 316 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 317$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') 318endef 319 320# Determine target endianness. 321IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 322 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 323MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 324 325ifneq ($(CROSS_COMPILE),) 326CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%)) 327endif 328 329CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) 330BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 331 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 332 -I$(abspath $(OUTPUT)/../usr/include) 333 334CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ 335 -Wno-compare-distinct-pointer-types 336 337$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 338$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 339 340$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 341$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h 342 343# Build BPF object using Clang 344# $1 - input .c file 345# $2 - output .o file 346# $3 - CFLAGS 347define CLANG_BPF_BUILD_RULE 348 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 349 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v3 -o $2 350endef 351# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 352define CLANG_NOALU32_BPF_BUILD_RULE 353 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 354 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v2 -o $2 355endef 356# Build BPF object using GCC 357define GCC_BPF_BUILD_RULE 358 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) 359 $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2 360endef 361 362SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 363 364LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 365 linked_vars.skel.h linked_maps.skel.h \ 366 test_subskeleton.skel.h test_subskeleton_lib.skel.h \ 367 test_usdt.skel.h 368 369LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \ 370 trace_printk.c trace_vprintk.c map_ptr_kern.c \ 371 core_kern.c core_kern_overflow.c test_ringbuf.c \ 372 test_ringbuf_map_key.c 373 374# Generate both light skeleton and libbpf skeleton for these 375LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \ 376 kfunc_call_test_subprog.c 377SKEL_BLACKLIST += $$(LSKELS) 378 379test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o 380linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o 381linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o 382linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o 383# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file 384# but that's created as a side-effect of the skel.h generation. 385test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o 386test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o 387test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o 388xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o 389xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o 390xdp_features.skel.h-deps := xdp_features.bpf.o 391 392LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps))) 393 394# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 395# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 396# Parameters: 397# $1 - test runner base binary name (e.g., test_progs) 398# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 399define DEFINE_TEST_RUNNER 400 401TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 402TRUNNER_BINARY := $1$(if $2,-)$2 403TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 404 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 405TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 406 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 407TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 408TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 409TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 410TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS)) 411TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 412 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 413 $$(TRUNNER_BPF_SRCS))) 414TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA)) 415TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 416TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 417 418# Evaluate rules now with extra TRUNNER_XXX variables above already defined 419$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 420 421endef 422 423# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 424# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 425# $1 - test runner base binary name (e.g., test_progs) 426# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 427define DEFINE_TEST_RUNNER_RULES 428 429ifeq ($($(TRUNNER_OUTPUT)-dir),) 430$(TRUNNER_OUTPUT)-dir := y 431$(TRUNNER_OUTPUT): 432 $$(call msg,MKDIR,,$$@) 433 $(Q)mkdir -p $$@ 434endif 435 436# ensure we set up BPF objects generation rule just once for a given 437# input/output directory combination 438ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 439$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 440$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \ 441 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 442 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 443 $$(INCLUDE_DIR)/vmlinux.h \ 444 $(wildcard $(BPFDIR)/bpf_*.h) \ 445 $(wildcard $(BPFDIR)/*.bpf.h) \ 446 | $(TRUNNER_OUTPUT) $$(BPFOBJ) 447 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 448 $(TRUNNER_BPF_CFLAGS)) 449 450$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 451 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 452 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 453 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 454 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 455 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 456 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@ 457 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h) 458 459$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 460 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 461 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$< 462 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o) 463 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o) 464 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o) 465 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@ 466 467$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT) 468 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o)) 469 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 470 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 471 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 472 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 473 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 474 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 475 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h) 476endif 477 478# ensure we set up tests.h header generation rule just once 479ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 480$(TRUNNER_TESTS_DIR)-tests-hdr := y 481$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 482 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 483 $$(shell (echo '/* Generated header, do not edit */'; \ 484 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \ 485 $(TRUNNER_TESTS_DIR)/*.c | sort ; \ 486 ) > $$@) 487endif 488 489# compile individual test files 490# Note: we cd into output directory to ensure embedded BPF object is found 491$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 492 $(TRUNNER_TESTS_DIR)/%.c \ 493 $(TRUNNER_EXTRA_HDRS) \ 494 $(TRUNNER_BPF_OBJS) \ 495 $(TRUNNER_BPF_SKELS) \ 496 $(TRUNNER_BPF_LSKELS) \ 497 $(TRUNNER_BPF_SKELS_LINKED) \ 498 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 499 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 500 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 501 502$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 503 %.c \ 504 $(TRUNNER_EXTRA_HDRS) \ 505 $(TRUNNER_TESTS_HDR) \ 506 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 507 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 508 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 509 510# non-flavored in-srctree builds receive special treatment, in particular, we 511# do not need to copy extra resources (see e.g. test_btf_dump_case()) 512$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 513ifneq ($2:$(OUTPUT),:$(shell pwd)) 514 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 515 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 516endif 517 518$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 519 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 520 $(RESOLVE_BTFIDS) \ 521 | $(TRUNNER_BINARY)-extras 522 $$(call msg,BINARY,,$$@) 523 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ 524 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@ 525 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/bootstrap/bpftool \ 526 $(OUTPUT)/$(if $2,$2/)bpftool 527 528endef 529 530# Define test_progs test runner. 531TRUNNER_TESTS_DIR := prog_tests 532TRUNNER_BPF_PROGS_DIR := progs 533TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ 534 network_helpers.c testing_helpers.c \ 535 btf_helpers.c flow_dissector_load.h \ 536 cap_helpers.c test_loader.c xsk.c 537TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 538 $(OUTPUT)/liburandom_read.so \ 539 $(OUTPUT)/xdp_synproxy \ 540 $(OUTPUT)/sign-file \ 541 ima_setup.sh \ 542 verify_sig_setup.sh \ 543 $(wildcard progs/btf_dump_test_case_*.c) \ 544 $(wildcard progs/*.bpf.o) 545TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 546TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS 547$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 548 549# Define test_progs-no_alu32 test runner. 550TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 551TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 552$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 553 554# Define test_progs BPF-GCC-flavored test runner. 555ifneq ($(BPF_GCC),) 556TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 557TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,) 558$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 559endif 560 561# Define test_maps test runner. 562TRUNNER_TESTS_DIR := map_tests 563TRUNNER_BPF_PROGS_DIR := progs 564TRUNNER_EXTRA_SOURCES := test_maps.c 565TRUNNER_EXTRA_FILES := 566TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 567TRUNNER_BPF_CFLAGS := 568$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 569 570# Define test_verifier test runner. 571# It is much simpler than test_maps/test_progs and sufficiently different from 572# them (e.g., test.h is using completely pattern), that it's worth just 573# explicitly defining all the rules explicitly. 574verifier/tests.h: verifier/*.c 575 $(shell ( cd verifier/; \ 576 echo '/* Generated header, do not edit */'; \ 577 echo '#ifdef FILL_ARRAY'; \ 578 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 579 echo '#endif' \ 580 ) > verifier/tests.h) 581$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 582 $(call msg,BINARY,,$@) 583 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 584 585$(OUTPUT)/xskxceiver: xskxceiver.c $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) 586 $(call msg,BINARY,,$@) 587 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 588 589$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT) 590 $(call msg,BINARY,,$@) 591 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 592 593$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT) 594 $(call msg,BINARY,,$@) 595 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 596 597# Make sure we are able to include and link libbpf against c++. 598$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 599 $(call msg,CXX,,$@) 600 $(Q)$(CXX) $(CFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 601 602# Benchmark runner 603$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ) 604 $(call msg,CC,,$@) 605 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@ 606$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 607$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 608$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 609 $(OUTPUT)/perfbuf_bench.skel.h 610$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h 611$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h 612$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h 613$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h 614$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h 615$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h 616$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) 617$(OUTPUT)/bench: LDLIBS += -lm 618$(OUTPUT)/bench: $(OUTPUT)/bench.o \ 619 $(TESTING_HELPERS) \ 620 $(TRACE_HELPERS) \ 621 $(OUTPUT)/bench_count.o \ 622 $(OUTPUT)/bench_rename.o \ 623 $(OUTPUT)/bench_trigger.o \ 624 $(OUTPUT)/bench_ringbufs.o \ 625 $(OUTPUT)/bench_bloom_filter_map.o \ 626 $(OUTPUT)/bench_bpf_loop.o \ 627 $(OUTPUT)/bench_strncmp.o \ 628 $(OUTPUT)/bench_bpf_hashmap_full_update.o \ 629 $(OUTPUT)/bench_local_storage.o \ 630 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o 631 $(call msg,BINARY,,$@) 632 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 633 634$(OUTPUT)/veristat.o: $(BPFOBJ) 635$(OUTPUT)/veristat: $(OUTPUT)/veristat.o 636 $(call msg,BINARY,,$@) 637 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ 638 639EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 640 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 641 feature bpftool \ 642 $(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h *.subskel.h \ 643 no_alu32 bpf_gcc bpf_testmod.ko \ 644 liburandom_read.so) 645 646.PHONY: docs docs-clean 647 648# Delete partially updated (corrupted) files on error 649.DELETE_ON_ERROR: 650