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