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