893 lines · plain
1# SPDX-License-Identifier: GPL-2.02include ../../../build/Build.include3include ../../../scripts/Makefile.arch4include ../../../scripts/Makefile.include5 6CXX ?= $(CROSS_COMPILE)g++7 8CURDIR := $(abspath .)9TOOLSDIR := $(abspath ../../..)10LIBDIR := $(TOOLSDIR)/lib11BPFDIR := $(LIBDIR)/bpf12TOOLSINCDIR := $(TOOLSDIR)/include13BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool14APIDIR := $(TOOLSINCDIR)/uapi15ifneq ($(O),)16GENDIR := $(O)/include/generated17else18GENDIR := $(abspath ../../../../include/generated)19endif20GENHDR := $(GENDIR)/autoconf.h21PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config22 23ifneq ($(wildcard $(GENHDR)),)24 GENFLAGS := -DHAVE_GENHDR25endif26 27BPF_GCC ?= $(shell command -v bpf-gcc;)28SAN_CFLAGS ?=29SAN_LDFLAGS ?= $(SAN_CFLAGS)30RELEASE ?=31OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0)32 33LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null)34LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)35 36ifeq ($(srctree),)37srctree := $(patsubst %/,%,$(dir $(CURDIR)))38srctree := $(patsubst %/,%,$(dir $(srctree)))39srctree := $(patsubst %/,%,$(dir $(srctree)))40srctree := $(patsubst %/,%,$(dir $(srctree)))41endif42 43CFLAGS += -g $(OPT_FLAGS) -rdynamic \44 -Wall -Werror -fno-omit-frame-pointer \45 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \46 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \47 -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT)48LDFLAGS += $(SAN_LDFLAGS)49LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread50 51PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1")52PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null)53LDLIBS += $(PCAP_LIBS)54CFLAGS += $(PCAP_CFLAGS)55 56# The following tests perform type punning and they may break strict57# aliasing rules, which are exploited by both GCC and clang by default58# while optimizing. This can lead to broken programs.59progs/bind4_prog.c-CFLAGS := -fno-strict-aliasing60progs/bind6_prog.c-CFLAGS := -fno-strict-aliasing61progs/dynptr_fail.c-CFLAGS := -fno-strict-aliasing62progs/linked_list_fail.c-CFLAGS := -fno-strict-aliasing63progs/map_kptr_fail.c-CFLAGS := -fno-strict-aliasing64progs/syscall.c-CFLAGS := -fno-strict-aliasing65progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing66progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing67progs/timer_crash.c-CFLAGS := -fno-strict-aliasing68progs/test_global_func9.c-CFLAGS := -fno-strict-aliasing69progs/verifier_nocsr.c-CFLAGS := -fno-strict-aliasing70 71# Some utility functions use LLVM libraries72jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS)73 74ifneq ($(LLVM),)75# Silence some warnings when compiled with clang76CFLAGS += -Wno-unused-command-line-argument77endif78 79# Check whether bpf cpu=v4 is supported or not by clang80ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),)81CLANG_CPUV4 := 182endif83 84# Order correspond to 'make run_tests' order85TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \86 test_sock test_sockmap \87 test_tcpnotify_user test_sysctl \88 test_progs-no_alu3289TEST_INST_SUBDIRS := no_alu3290 91# Also test bpf-gcc, if present92ifneq ($(BPF_GCC),)93TEST_GEN_PROGS += test_progs-bpf_gcc94TEST_INST_SUBDIRS += bpf_gcc95 96# The following tests contain C code that, although technically legal,97# triggers GCC warnings that cannot be disabled: declaration of98# anonymous struct types in function parameter lists.99progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error100progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error101progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error102progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error103progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error104 105# The following tests do type-punning, via the __imm_insn macro, from106# `struct bpf_insn' to long and then uses the value. This triggers an107# "is used uninitialized" warning in GCC due to strict-aliasing108# rules.109progs/verifier_ref_tracking.c-bpf_gcc-CFLAGS := -fno-strict-aliasing110progs/verifier_unpriv.c-bpf_gcc-CFLAGS := -fno-strict-aliasing111progs/verifier_cgroup_storage.c-bpf_gcc-CFLAGS := -fno-strict-aliasing112progs/verifier_ld_ind.c-bpf_gcc-CFLAGS := -fno-strict-aliasing113progs/verifier_map_ret_val.c-bpf_gcc-CFLAGS := -fno-strict-aliasing114progs/verifier_spill_fill.c-bpf_gcc-CFLAGS := -fno-strict-aliasing115progs/verifier_subprog_precision.c-bpf_gcc-CFLAGS := -fno-strict-aliasing116progs/verifier_uninit.c-bpf_gcc-CFLAGS := -fno-strict-aliasing117endif118 119ifneq ($(CLANG_CPUV4),)120TEST_GEN_PROGS += test_progs-cpuv4121TEST_INST_SUBDIRS += cpuv4122endif123 124TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o125TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c)126 127# Order correspond to 'make run_tests' order128TEST_PROGS := test_kmod.sh \129 test_xdp_redirect.sh \130 test_xdp_redirect_multi.sh \131 test_xdp_meta.sh \132 test_tunnel.sh \133 test_lwt_seg6local.sh \134 test_lirc_mode2.sh \135 test_skb_cgroup_id.sh \136 test_flow_dissector.sh \137 test_xdp_vlan_mode_generic.sh \138 test_xdp_vlan_mode_native.sh \139 test_lwt_ip_encap.sh \140 test_tcp_check_syncookie.sh \141 test_tc_tunnel.sh \142 test_tc_edt.sh \143 test_xdping.sh \144 test_bpftool_build.sh \145 test_bpftool.sh \146 test_bpftool_metadata.sh \147 test_doc_build.sh \148 test_xsk.sh \149 test_xdp_features.sh150 151TEST_PROGS_EXTENDED := with_addr.sh \152 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \153 test_xdp_vlan.sh test_bpftool.py154 155# Compile but not part of 'make run_tests'156TEST_GEN_PROGS_EXTENDED = \157 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \158 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \159 xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \160 xdp_features bpf_test_no_cfi.ko bpf_test_modorder_x.ko \161 bpf_test_modorder_y.ko162 163TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi164 165ifneq ($(V),1)166submake_extras := feature_display=0167endif168 169# override lib.mk's default rules170OVERRIDE_TARGETS := 1171override define CLEAN172 $(call msg,CLEAN)173 $(Q)$(RM) -r $(TEST_GEN_PROGS)174 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED)175 $(Q)$(RM) -r $(TEST_GEN_FILES)176 $(Q)$(RM) -r $(EXTRA_CLEAN)177 $(Q)$(MAKE) -C bpf_testmod clean178 $(Q)$(MAKE) docs-clean179endef180 181include ../lib.mk182 183NON_CHECK_FEAT_TARGETS := clean docs-clean184CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none"))185ifneq ($(CHECK_FEAT),)186FEATURE_USER := .selftests187FEATURE_TESTS := llvm188FEATURE_DISPLAY := $(FEATURE_TESTS)189 190# Makefile.feature expects OUTPUT to end with a slash191ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1)192$(let OUTPUT,$(OUTPUT)/,\193 $(eval include ../../../build/Makefile.feature))194else195OUTPUT := $(OUTPUT)/196$(eval include ../../../build/Makefile.feature)197OUTPUT := $(patsubst %/,%,$(OUTPUT))198endif199endif200 201ifeq ($(feature-llvm),1)202 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT203 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets204 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict205 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags))206 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS))207 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))208 LLVM_LDLIBS += -lstdc++209 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags)210endif211 212SCRATCH_DIR := $(OUTPUT)/tools213BUILD_DIR := $(SCRATCH_DIR)/build214INCLUDE_DIR := $(SCRATCH_DIR)/include215BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a216ifneq ($(CROSS_COMPILE),)217HOST_BUILD_DIR := $(BUILD_DIR)/host218HOST_SCRATCH_DIR := $(OUTPUT)/host-tools219HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include220else221HOST_BUILD_DIR := $(BUILD_DIR)222HOST_SCRATCH_DIR := $(SCRATCH_DIR)223HOST_INCLUDE_DIR := $(INCLUDE_DIR)224endif225HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a226RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids227RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/228 229VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \230 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \231 ../../../../vmlinux \232 /sys/kernel/btf/vmlinux \233 /boot/vmlinux-$(shell uname -r)234VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))235ifeq ($(VMLINUX_BTF),)236$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")237endif238 239# Define simple and short `make test_progs`, `make test_sysctl`, etc targets240# to build individual tests.241# NOTE: Semicolon at the end is critical to override lib.mk's default static242# rule for binaries.243$(notdir $(TEST_GEN_PROGS) \244 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ;245 246# sort removes libbpf duplicates when not cross-building247MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \248 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \249 $(HOST_BUILD_DIR)/resolve_btfids \250 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR))251$(MAKE_DIRS):252 $(call msg,MKDIR,,$@)253 $(Q)mkdir -p $@254 255$(OUTPUT)/%.o: %.c256 $(call msg,CC,,$@)257 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@258 259$(OUTPUT)/%:%.c260 $(call msg,BINARY,,$@)261 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@262 263# LLVM's ld.lld doesn't support all the architectures, so use it only on x86264ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv))265LLD := lld266else267LLD := $(shell command -v $(LD))268endif269 270# Filter out -static for liburandom_read.so and its dependent targets so that static builds271# do not fail. Static builds leave urandom_read relying on system-wide shared libraries.272$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map273 $(call msg,LIB,,$@)274 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \275 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \276 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \277 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \278 -Wl,--version-script=liburandom_read.map \279 -fPIC -shared -o $@280 281$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so282 $(call msg,BINARY,,$@)283 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \284 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \285 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \286 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \287 -Wl,-rpath=. -o $@288 289$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c290 $(call msg,SIGN-FILE,,$@)291 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \292 $< -o $@ \293 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)294 295$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])296 $(call msg,MOD,,$@)297 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation298 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod299 $(Q)cp bpf_testmod/bpf_testmod.ko $@300 301$(OUTPUT)/bpf_test_no_cfi.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_no_cfi/Makefile bpf_test_no_cfi/*.[ch])302 $(call msg,MOD,,$@)303 $(Q)$(RM) bpf_test_no_cfi/bpf_test_no_cfi.ko # force re-compilation304 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_no_cfi305 $(Q)cp bpf_test_no_cfi/bpf_test_no_cfi.ko $@306 307$(OUTPUT)/bpf_test_modorder_x.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_x/Makefile bpf_test_modorder_x/*.[ch])308 $(call msg,MOD,,$@)309 $(Q)$(RM) bpf_test_modorder_x/bpf_test_modorder_x.ko # force re-compilation310 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_modorder_x311 $(Q)cp bpf_test_modorder_x/bpf_test_modorder_x.ko $@312 313$(OUTPUT)/bpf_test_modorder_y.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_y/Makefile bpf_test_modorder_y/*.[ch])314 $(call msg,MOD,,$@)315 $(Q)$(RM) bpf_test_modorder_y/bpf_test_modorder_y.ko # force re-compilation316 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_test_modorder_y317 $(Q)cp bpf_test_modorder_y/bpf_test_modorder_y.ko $@318 319 320DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool321ifneq ($(CROSS_COMPILE),)322CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool323TRUNNER_BPFTOOL := $(CROSS_BPFTOOL)324USE_BOOTSTRAP := ""325else326TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL)327USE_BOOTSTRAP := "bootstrap/"328endif329 330$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT)331 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \332 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \333 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \334 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \335 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \336 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \337 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \338 cp $(RUNQSLOWER_OUTPUT)runqslower $@339 340TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL)341 342$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)343 344TESTING_HELPERS := $(OUTPUT)/testing_helpers.o345CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o346UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o347TRACE_HELPERS := $(OUTPUT)/trace_helpers.o348JSON_WRITER := $(OUTPUT)/json_writer.o349CAP_HELPERS := $(OUTPUT)/cap_helpers.o350NETWORK_HELPERS := $(OUTPUT)/network_helpers.o351 352$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS)353$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)354$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)355$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)356$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS)357$(OUTPUT)/test_tag: $(TESTING_HELPERS)358$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS)359$(OUTPUT)/xdping: $(TESTING_HELPERS)360$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS)361$(OUTPUT)/test_maps: $(TESTING_HELPERS)362$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS)363$(OUTPUT)/xsk.o: $(BPFOBJ)364$(OUTPUT)/test_tcp_check_syncookie_user: $(NETWORK_HELPERS)365 366BPFTOOL ?= $(DEFAULT_BPFTOOL)367$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \368 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool369 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \370 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \371 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \372 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \373 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \374 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \375 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin376 377ifneq ($(CROSS_COMPILE),)378$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \379 $(BPFOBJ) | $(BUILD_DIR)/bpftool380 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \381 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \382 EXTRA_CFLAGS='-g $(OPT_FLAGS)' \383 OUTPUT=$(BUILD_DIR)/bpftool/ \384 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \385 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \386 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin387endif388 389all: docs390 391docs:392 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \393 -f Makefile.docs \394 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@395 396docs-clean:397 $(Q)$(MAKE) $(submake_extras) \398 -f Makefile.docs \399 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@400 401$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \402 $(APIDIR)/linux/bpf.h \403 | $(BUILD_DIR)/libbpf404 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \405 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \406 EXTRA_LDFLAGS='$(SAN_LDFLAGS)' \407 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers408 409ifneq ($(BPFOBJ),$(HOST_BPFOBJ))410$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \411 $(APIDIR)/linux/bpf.h \412 | $(HOST_BUILD_DIR)/libbpf413 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \414 EXTRA_CFLAGS='-g $(OPT_FLAGS)' ARCH= CROSS_COMPILE= \415 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \416 CC="$(HOSTCC)" LD="$(HOSTLD)" \417 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers418endif419 420# vmlinux.h is first dumped to a temprorary file and then compared to421# the previous version. This helps to avoid unnecessary re-builds of422# $(TRUNNER_BPF_OBJS)423$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)424ifeq ($(VMLINUX_H),)425 $(call msg,GEN,,$@)426 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp427 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@428else429 $(call msg,CP,,$@)430 $(Q)cp "$(VMLINUX_H)" $@431endif432 433$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \434 $(TOOLSDIR)/bpf/resolve_btfids/main.c \435 $(TOOLSDIR)/lib/rbtree.c \436 $(TOOLSDIR)/lib/zalloc.c \437 $(TOOLSDIR)/lib/string.c \438 $(TOOLSDIR)/lib/ctype.c \439 $(TOOLSDIR)/lib/str_error_r.c440 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \441 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \442 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \443 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)444 445# Get Clang's default includes on this system, as opposed to those seen by446# '--target=bpf'. This fixes "missing" files on some architectures/distros,447# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.448#449# Use '-idirafter': Don't interfere with include mechanics except where the450# build would have failed anyways.451define get_sys_includes452$(shell $(1) $(2) -v -E - </dev/null 2>&1 \453 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \454$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \455$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \456$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}')457endef458 459# Determine target endianness.460IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \461 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')462MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)463 464ifneq ($(CROSS_COMPILE),)465CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))466endif467 468CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))469BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \470 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \471 -I$(abspath $(OUTPUT)/../usr/include) \472 -Wno-compare-distinct-pointer-types473# TODO: enable me -Wsign-compare474 475CLANG_CFLAGS = $(CLANG_SYS_INCLUDES)476 477$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline478$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline479 480$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h481$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h482 483# Build BPF object using Clang484# $1 - input .c file485# $2 - output .o file486# $3 - CFLAGS487# $4 - binary name488define CLANG_BPF_BUILD_RULE489 $(call msg,CLNG-BPF,$4,$2)490 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2491endef492# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32493define CLANG_NOALU32_BPF_BUILD_RULE494 $(call msg,CLNG-BPF,$4,$2)495 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2496endef497# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4498define CLANG_CPUV4_BPF_BUILD_RULE499 $(call msg,CLNG-BPF,$4,$2)500 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v4 -o $2501endef502# Build BPF object using GCC503define GCC_BPF_BUILD_RULE504 $(call msg,GCC-BPF,$4,$2)505 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2506endef507 508SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c509 510LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \511 linked_vars.skel.h linked_maps.skel.h \512 test_subskeleton.skel.h test_subskeleton_lib.skel.h \513 test_usdt.skel.h514 515LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \516 trace_printk.c trace_vprintk.c map_ptr_kern.c \517 core_kern.c core_kern_overflow.c test_ringbuf.c \518 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c519 520# Generate both light skeleton and libbpf skeleton for these521LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \522 kfunc_call_test_subprog.c523SKEL_BLACKLIST += $$(LSKELS)524 525test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o526linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o527linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o528linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o529# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file530# but that's created as a side-effect of the skel.h generation.531test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o532test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o533test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o534xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o535xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o536xdp_features.skel.h-deps := xdp_features.bpf.o537 538LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps))539LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS))540 541HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \542 $(addprefix $(BPFDIR)/, bpf_core_read.h \543 bpf_endian.h \544 bpf_helpers.h \545 bpf_tracing.h)546 547# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on548# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.549# Parameters:550# $1 - test runner base binary name (e.g., test_progs)551# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc)552define DEFINE_TEST_RUNNER553 554TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2555TRUNNER_BINARY := $1$(if $2,-)$2556TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \557 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))558TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \559 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))560TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))561TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h562TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))563TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS))564TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \565 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\566 $$(TRUNNER_BPF_SRCS)))567TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA))568TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))569TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)570 571# Evaluate rules now with extra TRUNNER_XXX variables above already defined572$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))573 574endef575 576# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and577# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:578# $1 - test runner base binary name (e.g., test_progs)579# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc)580define DEFINE_TEST_RUNNER_RULES581 582ifeq ($($(TRUNNER_OUTPUT)-dir),)583$(TRUNNER_OUTPUT)-dir := y584$(TRUNNER_OUTPUT):585 $$(call msg,MKDIR,,$$@)586 $(Q)mkdir -p $$@587endif588 589# ensure we set up BPF objects generation rule just once for a given590# input/output directory combination591ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)592$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y593$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \594 $(TRUNNER_BPF_PROGS_DIR)/%.c \595 $(TRUNNER_BPF_PROGS_DIR)/*.h \596 $$(INCLUDE_DIR)/vmlinux.h \597 $(HEADERS_FOR_BPF_OBJS) \598 | $(TRUNNER_OUTPUT) $$(BPFOBJ)599 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \600 $(TRUNNER_BPF_CFLAGS) \601 $$($$<-CFLAGS) \602 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY))603 604$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)605 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)606 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<607 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)608 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)609 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)610 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@611 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h)612 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)613 614$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)615 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)616 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$<617 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o)618 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o)619 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)620 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@621 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)622 623$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/%624 625# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites626.SECONDEXPANSION:627$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT)628 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o))629 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))630 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o)631 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o)632 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)633 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)634 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@635 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h)636 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)637 638# When the compiler generates a %.d file, only skel basenames (not639# full paths) are specified as prerequisites for corresponding %.o640# file. This target makes %.skel.h basename dependent on full paths,641# linking generated %.d dependency with actual %.skel.h files.642$(notdir %.skel.h): $(TRUNNER_OUTPUT)/%.skel.h643 @true644 645endif646 647# ensure we set up tests.h header generation rule just once648ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)649$(TRUNNER_TESTS_DIR)-tests-hdr := y650$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c651 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)652 $$(shell (echo '/* Generated header, do not edit */'; \653 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \654 $(TRUNNER_TESTS_DIR)/*.c | sort ; \655 ) > $$@)656endif657 658# compile individual test files659# Note: we cd into output directory to ensure embedded BPF object is found660$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \661 $(TRUNNER_TESTS_DIR)/%.c \662 | $(TRUNNER_OUTPUT)/%.test.d663 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)664 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)665 666$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \667 $(TRUNNER_TESTS_DIR)/%.c \668 $(TRUNNER_EXTRA_HDRS) \669 $(TRUNNER_BPF_SKELS) \670 $(TRUNNER_BPF_LSKELS) \671 $(TRUNNER_BPF_SKELS_LINKED) \672 $$(BPFOBJ) | $(TRUNNER_OUTPUT)673 674ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),)675include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d))676endif677 678# add per extra obj CFGLAGS definitions679$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \680 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS)))681 682$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \683 %.c \684 $(TRUNNER_EXTRA_HDRS) \685 $(TRUNNER_TESTS_HDR) \686 $$(BPFOBJ) | $(TRUNNER_OUTPUT)687 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)688 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@689 690# non-flavored in-srctree builds receive special treatment, in particular, we691# do not need to copy extra resources (see e.g. test_btf_dump_case())692$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)693ifneq ($2:$(OUTPUT),:$(shell pwd))694 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))695 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/696endif697 698$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS)699$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS)700 701# some X.test.o files have runtime dependencies on Y.bpf.o files702$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS)703 704$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \705 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \706 $(RESOLVE_BTFIDS) \707 $(TRUNNER_BPFTOOL) \708 | $(TRUNNER_BINARY)-extras709 $$(call msg,BINARY,,$$@)710 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@711 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@712 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \713 $(OUTPUT)/$(if $2,$2/)bpftool714 715endef716 717# Define test_progs test runner.718TRUNNER_TESTS_DIR := prog_tests719TRUNNER_BPF_PROGS_DIR := progs720TRUNNER_EXTRA_SOURCES := test_progs.c \721 cgroup_helpers.c \722 trace_helpers.c \723 network_helpers.c \724 testing_helpers.c \725 btf_helpers.c \726 cap_helpers.c \727 unpriv_helpers.c \728 netlink_helpers.c \729 jit_disasm_helpers.c \730 test_loader.c \731 xsk.c \732 disasm.c \733 disasm_helpers.c \734 json_writer.c \735 flow_dissector_load.h \736 ip_check_defrag_frags.h737TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \738 $(OUTPUT)/bpf_test_no_cfi.ko \739 $(OUTPUT)/bpf_test_modorder_x.ko \740 $(OUTPUT)/bpf_test_modorder_y.ko \741 $(OUTPUT)/liburandom_read.so \742 $(OUTPUT)/xdp_synproxy \743 $(OUTPUT)/sign-file \744 $(OUTPUT)/uprobe_multi \745 ima_setup.sh \746 verify_sig_setup.sh \747 $(wildcard progs/btf_dump_test_case_*.c) \748 $(wildcard progs/*.bpf.o)749TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE750TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS751$(eval $(call DEFINE_TEST_RUNNER,test_progs))752 753# Define test_progs-no_alu32 test runner.754TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE755TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)756$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))757 758# Define test_progs-cpuv4 test runner.759ifneq ($(CLANG_CPUV4),)760TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE761TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS762$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4))763endif764 765# Define test_progs BPF-GCC-flavored test runner.766ifneq ($(BPF_GCC),)767TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE768TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,)769$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))770endif771 772# Define test_maps test runner.773TRUNNER_TESTS_DIR := map_tests774TRUNNER_BPF_PROGS_DIR := progs775TRUNNER_EXTRA_SOURCES := test_maps.c776TRUNNER_EXTRA_FILES :=777TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)778TRUNNER_BPF_CFLAGS :=779$(eval $(call DEFINE_TEST_RUNNER,test_maps))780 781# Define test_verifier test runner.782# It is much simpler than test_maps/test_progs and sufficiently different from783# them (e.g., test.h is using completely pattern), that it's worth just784# explicitly defining all the rules explicitly.785verifier/tests.h: verifier/*.c786 $(shell ( cd verifier/; \787 echo '/* Generated header, do not edit */'; \788 echo '#ifdef FILL_ARRAY'; \789 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \790 echo '#endif' \791 ) > verifier/tests.h)792$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)793 $(call msg,BINARY,,$@)794 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@795 796# Include find_bit.c to compile xskxceiver.797EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c798$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT)799 $(call msg,BINARY,,$@)800 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@801 802$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT)803 $(call msg,BINARY,,$@)804 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@805 806$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT)807 $(call msg,BINARY,,$@)808 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@809 810# Make sure we are able to include and link libbpf against c++.811$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)812 $(call msg,CXX,,$@)813 $(Q)$(CXX) $(subst -D_GNU_SOURCE=,,$(CFLAGS)) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@814 815# Benchmark runner816$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ)817 $(call msg,CC,,$@)818 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@819$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h820$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h821$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \822 $(OUTPUT)/perfbuf_bench.skel.h823$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h824$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h825$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h826$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h827$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h828$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h829$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h830$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h831$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h832$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h833$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)834$(OUTPUT)/bench: LDLIBS += -lm835$(OUTPUT)/bench: $(OUTPUT)/bench.o \836 $(TESTING_HELPERS) \837 $(TRACE_HELPERS) \838 $(CGROUP_HELPERS) \839 $(OUTPUT)/bench_count.o \840 $(OUTPUT)/bench_rename.o \841 $(OUTPUT)/bench_trigger.o \842 $(OUTPUT)/bench_ringbufs.o \843 $(OUTPUT)/bench_bloom_filter_map.o \844 $(OUTPUT)/bench_bpf_loop.o \845 $(OUTPUT)/bench_strncmp.o \846 $(OUTPUT)/bench_bpf_hashmap_full_update.o \847 $(OUTPUT)/bench_local_storage.o \848 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \849 $(OUTPUT)/bench_bpf_hashmap_lookup.o \850 $(OUTPUT)/bench_local_storage_create.o \851 $(OUTPUT)/bench_htab_mem.o \852 $(OUTPUT)/bench_bpf_crypto.o \853 #854 $(call msg,BINARY,,$@)855 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@856 857$(OUTPUT)/veristat.o: $(BPFOBJ)858$(OUTPUT)/veristat: $(OUTPUT)/veristat.o859 $(call msg,BINARY,,$@)860 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@861 862# Linking uprobe_multi can fail due to relocation overflows on mips.863$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot)864$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld865 $(call msg,BINARY,,$@)866 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \867 $(filter-out %.ld,$^) $(LDLIBS) -o $@868 869EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \870 prog_tests/tests.h map_tests/tests.h verifier/tests.h \871 feature bpftool \872 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \873 no_alu32 cpuv4 bpf_gcc bpf_testmod.ko \874 bpf_test_no_cfi.ko \875 bpf_test_modorder_x.ko \876 bpf_test_modorder_y.ko \877 liburandom_read.so) \878 $(OUTPUT)/FEATURE-DUMP.selftests879 880.PHONY: docs docs-clean881 882# Delete partially updated (corrupted) files on error883.DELETE_ON_ERROR:884 885DEFAULT_INSTALL_RULE := $(INSTALL_RULE)886override define INSTALL_RULE887 $(DEFAULT_INSTALL_RULE)888 @for DIR in $(TEST_INST_SUBDIRS); do \889 mkdir -p $(INSTALL_PATH)/$$DIR; \890 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\891 done892endef893