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_redirect_multi.sh \ 58 test_xdp_meta.sh \ 59 test_xdp_veth.sh \ 60 test_offload.py \ 61 test_sock_addr.sh \ 62 test_tunnel.sh \ 63 test_lwt_seg6local.sh \ 64 test_lirc_mode2.sh \ 65 test_skb_cgroup_id.sh \ 66 test_flow_dissector.sh \ 67 test_xdp_vlan_mode_generic.sh \ 68 test_xdp_vlan_mode_native.sh \ 69 test_lwt_ip_encap.sh \ 70 test_tcp_check_syncookie.sh \ 71 test_tc_tunnel.sh \ 72 test_tc_edt.sh \ 73 test_xdping.sh \ 74 test_bpftool_build.sh \ 75 test_bpftool.sh \ 76 test_bpftool_metadata.sh \ 77 test_doc_build.sh \ 78 test_xsk.sh 79 80TEST_PROGS_EXTENDED := with_addr.sh \ 81 with_tunnels.sh \ 82 test_xdp_vlan.sh 83 84# Compile but not part of 'make run_tests' 85TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ 86 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ 87 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \ 88 xdpxceiver xdp_redirect_multi 89 90TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read 91 92# Emit succinct information message describing current building step 93# $1 - generic step name (e.g., CC, LINK, etc); 94# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor]; 95# $3 - target (assumed to be file); only file name will be emitted; 96# $4 - optional extra arg, emitted as-is, if provided. 97ifeq ($(V),1) 98Q = 99msg = 100else 101Q = @ 102msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))"; 103MAKEFLAGS += --no-print-directory 104submake_extras := feature_display=0 105endif 106 107# override lib.mk's default rules 108OVERRIDE_TARGETS := 1 109override define CLEAN 110 $(call msg,CLEAN) 111 $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 112 $(Q)$(MAKE) -C bpf_testmod clean 113 $(Q)$(MAKE) docs-clean 114endef 115 116include ../lib.mk 117 118SCRATCH_DIR := $(OUTPUT)/tools 119BUILD_DIR := $(SCRATCH_DIR)/build 120INCLUDE_DIR := $(SCRATCH_DIR)/include 121BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a 122ifneq ($(CROSS_COMPILE),) 123HOST_BUILD_DIR := $(BUILD_DIR)/host 124HOST_SCRATCH_DIR := $(OUTPUT)/host-tools 125else 126HOST_BUILD_DIR := $(BUILD_DIR) 127HOST_SCRATCH_DIR := $(SCRATCH_DIR) 128endif 129HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a 130RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids 131 132VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ 133 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ 134 ../../../../vmlinux \ 135 /sys/kernel/btf/vmlinux \ 136 /boot/vmlinux-$(shell uname -r) 137VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) 138ifeq ($(VMLINUX_BTF),) 139$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") 140endif 141 142# Define simple and short `make test_progs`, `make test_sysctl`, etc targets 143# to build individual tests. 144# NOTE: Semicolon at the end is critical to override lib.mk's default static 145# rule for binaries. 146$(notdir $(TEST_GEN_PROGS) \ 147 $(TEST_PROGS) \ 148 $(TEST_PROGS_EXTENDED) \ 149 $(TEST_GEN_PROGS_EXTENDED) \ 150 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; 151 152# sort removes libbpf duplicates when not cross-building 153MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \ 154 $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \ 155 $(INCLUDE_DIR)) 156$(MAKE_DIRS): 157 $(call msg,MKDIR,,$@) 158 $(Q)mkdir -p $@ 159 160$(OUTPUT)/%.o: %.c 161 $(call msg,CC,,$@) 162 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 163 164$(OUTPUT)/%:%.c 165 $(call msg,BINARY,,$@) 166 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ 167 168$(OUTPUT)/urandom_read: urandom_read.c 169 $(call msg,BINARY,,$@) 170 $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1 171 172$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) 173 $(call msg,MOD,,$@) 174 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation 175 $(Q)$(MAKE) $(submake_extras) -C bpf_testmod 176 $(Q)cp bpf_testmod/bpf_testmod.ko $@ 177 178$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) 179 $(call msg,CC,,$@) 180 $(Q)$(CC) -c $(CFLAGS) -o $@ $< 181 182DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool 183 184$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) 185 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ 186 OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \ 187 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \ 188 cp $(SCRATCH_DIR)/runqslower $@ 189 190$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ) 191 192$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c 193$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c 194$(OUTPUT)/test_sock: cgroup_helpers.c 195$(OUTPUT)/test_sock_addr: cgroup_helpers.c 196$(OUTPUT)/test_sockmap: cgroup_helpers.c 197$(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c 198$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c 199$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c 200$(OUTPUT)/test_netcnt: cgroup_helpers.c 201$(OUTPUT)/test_sock_fields: cgroup_helpers.c 202$(OUTPUT)/test_sysctl: cgroup_helpers.c 203 204BPFTOOL ?= $(DEFAULT_BPFTOOL) 205$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ 206 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool 207 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ 208 CC=$(HOSTCC) LD=$(HOSTLD) \ 209 EXTRA_CFLAGS='-g -O0' \ 210 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ 211 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install 212 213all: docs 214 215docs: 216 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \ 217 -f Makefile.docs \ 218 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 219 220docs-clean: 221 $(Q)$(MAKE) $(submake_extras) \ 222 -f Makefile.docs \ 223 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@ 224 225$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 226 ../../../include/uapi/linux/bpf.h \ 227 | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf 228 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ 229 EXTRA_CFLAGS='-g -O0' \ 230 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers 231 232ifneq ($(BPFOBJ),$(HOST_BPFOBJ)) 233$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ 234 ../../../include/uapi/linux/bpf.h \ 235 | $(INCLUDE_DIR) $(HOST_BUILD_DIR)/libbpf 236 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ 237 EXTRA_CFLAGS='-g -O0' \ 238 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \ 239 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers 240endif 241 242$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) 243ifeq ($(VMLINUX_H),) 244 $(call msg,GEN,,$@) 245 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@ 246else 247 $(call msg,CP,,$@) 248 $(Q)cp "$(VMLINUX_H)" $@ 249endif 250 251$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \ 252 $(TOOLSDIR)/bpf/resolve_btfids/main.c \ 253 $(TOOLSDIR)/lib/rbtree.c \ 254 $(TOOLSDIR)/lib/zalloc.c \ 255 $(TOOLSDIR)/lib/string.c \ 256 $(TOOLSDIR)/lib/ctype.c \ 257 $(TOOLSDIR)/lib/str_error_r.c 258 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \ 259 CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \ 260 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) 261 262# Get Clang's default includes on this system, as opposed to those seen by 263# '-target bpf'. This fixes "missing" files on some architectures/distros, 264# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. 265# 266# Use '-idirafter': Don't interfere with include mechanics except where the 267# build would have failed anyways. 268define get_sys_includes 269$(shell $(1) -v -E - </dev/null 2>&1 \ 270 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ 271$(shell $(1) -dM -E - </dev/null | grep '#define __riscv_xlen ' | sed 's/#define /-D/' | sed 's/ /=/') 272endef 273 274# Determine target endianness. 275IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ 276 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') 277MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) 278 279CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG)) 280BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ 281 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \ 282 -I$(abspath $(OUTPUT)/../usr/include) 283 284CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ 285 -Wno-compare-distinct-pointer-types 286 287$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline 288$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline 289 290$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h 291 292# Build BPF object using Clang 293# $1 - input .c file 294# $2 - output .o file 295# $3 - CFLAGS 296define CLANG_BPF_BUILD_RULE 297 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 298 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v3 299endef 300# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 301define CLANG_NOALU32_BPF_BUILD_RULE 302 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) 303 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v2 304endef 305# Build BPF object using GCC 306define GCC_BPF_BUILD_RULE 307 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) 308 $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2 309endef 310 311SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c 312 313LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ 314 linked_vars.skel.h linked_maps.skel.h 315 316LSKELS := kfunc_call_test.c fentry_test.c fexit_test.c fexit_sleep.c \ 317 test_ksyms_module.c test_ringbuf.c atomics.c trace_printk.c 318SKEL_BLACKLIST += $$(LSKELS) 319 320test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o 321linked_funcs.skel.h-deps := linked_funcs1.o linked_funcs2.o 322linked_vars.skel.h-deps := linked_vars1.o linked_vars2.o 323linked_maps.skel.h-deps := linked_maps1.o linked_maps2.o 324 325LINKED_BPF_SRCS := $(patsubst %.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps))) 326 327# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on 328# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES. 329# Parameters: 330# $1 - test runner base binary name (e.g., test_progs) 331# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 332define DEFINE_TEST_RUNNER 333 334TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2 335TRUNNER_BINARY := $1$(if $2,-)$2 336TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \ 337 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))) 338TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \ 339 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES))) 340TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES)) 341TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h 342TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)) 343TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS)) 344TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \ 345 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\ 346 $$(TRUNNER_BPF_SRCS))) 347TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS)) 348TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS)) 349TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS) 350 351# Evaluate rules now with extra TRUNNER_XXX variables above already defined 352$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2)) 353 354endef 355 356# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and 357# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with: 358# $1 - test runner base binary name (e.g., test_progs) 359# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc) 360define DEFINE_TEST_RUNNER_RULES 361 362ifeq ($($(TRUNNER_OUTPUT)-dir),) 363$(TRUNNER_OUTPUT)-dir := y 364$(TRUNNER_OUTPUT): 365 $$(call msg,MKDIR,,$$@) 366 $(Q)mkdir -p $$@ 367endif 368 369# ensure we set up BPF objects generation rule just once for a given 370# input/output directory combination 371ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),) 372$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y 373$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 374 $(TRUNNER_BPF_PROGS_DIR)/%.c \ 375 $(TRUNNER_BPF_PROGS_DIR)/*.h \ 376 $$(INCLUDE_DIR)/vmlinux.h \ 377 $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT) 378 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ 379 $(TRUNNER_BPF_CFLAGS)) 380 381$(TRUNNER_BPF_SKELS): %.skel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 382 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 383 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 384 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 385 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 386 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 387 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@ 388 389$(TRUNNER_BPF_LSKELS): %.lskel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT) 390 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 391 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$< 392 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o) 393 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o) 394 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o) 395 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@ 396 397$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT) 398 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.o)) 399 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps)) 400 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o) 401 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o) 402 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o) 403 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) 404 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@ 405endif 406 407# ensure we set up tests.h header generation rule just once 408ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) 409$(TRUNNER_TESTS_DIR)-tests-hdr := y 410$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c 411 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) 412 $$(shell ( cd $(TRUNNER_TESTS_DIR); \ 413 echo '/* Generated header, do not edit */'; \ 414 ls *.c 2> /dev/null | \ 415 sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \ 416 ) > $$@) 417endif 418 419# compile individual test files 420# Note: we cd into output directory to ensure embedded BPF object is found 421$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ 422 $(TRUNNER_TESTS_DIR)/%.c \ 423 $(TRUNNER_EXTRA_HDRS) \ 424 $(TRUNNER_BPF_OBJS) \ 425 $(TRUNNER_BPF_SKELS) \ 426 $(TRUNNER_BPF_LSKELS) \ 427 $(TRUNNER_BPF_SKELS_LINKED) \ 428 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 429 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) 430 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) 431 432$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ 433 %.c \ 434 $(TRUNNER_EXTRA_HDRS) \ 435 $(TRUNNER_TESTS_HDR) \ 436 $$(BPFOBJ) | $(TRUNNER_OUTPUT) 437 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) 438 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ 439 440# non-flavored in-srctree builds receive special treatment, in particular, we 441# do not need to copy extra resources (see e.g. test_btf_dump_case()) 442$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) 443ifneq ($2:$(OUTPUT),:$(shell pwd)) 444 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) 445 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/ 446endif 447 448$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ 449 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ 450 $(RESOLVE_BTFIDS) \ 451 | $(TRUNNER_BINARY)-extras 452 $$(call msg,BINARY,,$$@) 453 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ 454 $(Q)$(RESOLVE_BTFIDS) --no-fail --btf $(TRUNNER_OUTPUT)/btf_data.o $$@ 455 456endef 457 458# Define test_progs test runner. 459TRUNNER_TESTS_DIR := prog_tests 460TRUNNER_BPF_PROGS_DIR := progs 461TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ 462 network_helpers.c testing_helpers.c \ 463 btf_helpers.c flow_dissector_load.h 464TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ 465 ima_setup.sh \ 466 $(wildcard progs/btf_dump_test_case_*.c) 467TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE 468TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 469TRUNNER_BPF_CFLAGS += -DENABLE_ATOMICS_TESTS 470$(eval $(call DEFINE_TEST_RUNNER,test_progs)) 471 472# Define test_progs-no_alu32 test runner. 473TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE 474TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) 475$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) 476 477# Define test_progs BPF-GCC-flavored test runner. 478ifneq ($(BPF_GCC),) 479TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE 480TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc) 481$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) 482endif 483 484# Define test_maps test runner. 485TRUNNER_TESTS_DIR := map_tests 486TRUNNER_BPF_PROGS_DIR := progs 487TRUNNER_EXTRA_SOURCES := test_maps.c 488TRUNNER_EXTRA_FILES := 489TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built) 490TRUNNER_BPF_CFLAGS := 491$(eval $(call DEFINE_TEST_RUNNER,test_maps)) 492 493# Define test_verifier test runner. 494# It is much simpler than test_maps/test_progs and sufficiently different from 495# them (e.g., test.h is using completely pattern), that it's worth just 496# explicitly defining all the rules explicitly. 497verifier/tests.h: verifier/*.c 498 $(shell ( cd verifier/; \ 499 echo '/* Generated header, do not edit */'; \ 500 echo '#ifdef FILL_ARRAY'; \ 501 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ 502 echo '#endif' \ 503 ) > verifier/tests.h) 504$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) 505 $(call msg,BINARY,,$@) 506 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ 507 508# Make sure we are able to include and link libbpf against c++. 509$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) 510 $(call msg,CXX,,$@) 511 $(Q)$(CXX) $(CFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@ 512 513# Benchmark runner 514$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h 515 $(call msg,CC,,$@) 516 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ 517$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h 518$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h 519$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ 520 $(OUTPUT)/perfbuf_bench.skel.h 521$(OUTPUT)/bench.o: bench.h testing_helpers.h 522$(OUTPUT)/bench: LDLIBS += -lm 523$(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \ 524 $(OUTPUT)/bench_count.o \ 525 $(OUTPUT)/bench_rename.o \ 526 $(OUTPUT)/bench_trigger.o \ 527 $(OUTPUT)/bench_ringbufs.o 528 $(call msg,BINARY,,$@) 529 $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS) 530 531EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ 532 prog_tests/tests.h map_tests/tests.h verifier/tests.h \ 533 feature \ 534 $(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h no_alu32 bpf_gcc bpf_testmod.ko) 535 536.PHONY: docs docs-clean 537