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1# SPDX-License-Identifier: GPL-2.02 3# based on tools/testing/selftest/bpf/Makefile4include ../../../build/Build.include5include ../../../scripts/Makefile.arch6include ../../../scripts/Makefile.include7 8TEST_PROGS := hid-core.sh9TEST_PROGS += hid-apple.sh10TEST_PROGS += hid-gamepad.sh11TEST_PROGS += hid-ite.sh12TEST_PROGS += hid-keyboard.sh13TEST_PROGS += hid-mouse.sh14TEST_PROGS += hid-multitouch.sh15TEST_PROGS += hid-sony.sh16TEST_PROGS += hid-tablet.sh17TEST_PROGS += hid-usb_crash.sh18TEST_PROGS += hid-wacom.sh19 20TEST_FILES := run-hid-tools-tests.sh21TEST_FILES += tests22 23CXX ?= $(CROSS_COMPILE)g++24 25HOSTPKG_CONFIG := pkg-config26 27CFLAGS += -g -O0 -rdynamic -Wall -Werror -I$(OUTPUT)28CFLAGS += -I$(OUTPUT)/tools/include29 30LDLIBS += -lelf -lz -lrt -lpthread31 32# Silence some warnings when compiled with clang33ifneq ($(LLVM),)34CFLAGS += -Wno-unused-command-line-argument35endif36 37# Order correspond to 'make run_tests' order38TEST_GEN_PROGS = hid_bpf hidraw39 40# Emit succinct information message describing current building step41# $1 - generic step name (e.g., CC, LINK, etc);42# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];43# $3 - target (assumed to be file); only file name will be emitted;44# $4 - optional extra arg, emitted as-is, if provided.45ifeq ($(V),1)46Q =47msg =48else49Q = @50msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";51MAKEFLAGS += --no-print-directory52submake_extras := feature_display=053endif54 55# override lib.mk's default rules56OVERRIDE_TARGETS := 157override define CLEAN58 $(call msg,CLEAN)59 $(Q)$(RM) -r $(TEST_GEN_PROGS)60 $(Q)$(RM) -r $(EXTRA_CLEAN)61endef62 63include ../lib.mk64 65TOOLSDIR := $(top_srcdir)/tools66LIBDIR := $(TOOLSDIR)/lib67BPFDIR := $(LIBDIR)/bpf68TOOLSINCDIR := $(TOOLSDIR)/include69BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool70SCRATCH_DIR := $(OUTPUT)/tools71BUILD_DIR := $(SCRATCH_DIR)/build72INCLUDE_DIR := $(SCRATCH_DIR)/include73BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a74ifneq ($(CROSS_COMPILE),)75HOST_BUILD_DIR := $(BUILD_DIR)/host76HOST_SCRATCH_DIR := $(OUTPUT)/host-tools77HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include78else79HOST_BUILD_DIR := $(BUILD_DIR)80HOST_SCRATCH_DIR := $(SCRATCH_DIR)81HOST_INCLUDE_DIR := $(INCLUDE_DIR)82endif83HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a84RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids85 86VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \87 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \88 ../../../../vmlinux \89 /sys/kernel/btf/vmlinux \90 /boot/vmlinux-$(shell uname -r)91VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))92ifeq ($(VMLINUX_BTF),)93$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")94endif95 96# Define simple and short `make test_progs`, `make test_sysctl`, etc targets97# to build individual tests.98# NOTE: Semicolon at the end is critical to override lib.mk's default static99# rule for binaries.100$(notdir $(TEST_GEN_PROGS)): %: $(OUTPUT)/% ;101 102# sort removes libbpf duplicates when not cross-building103MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \104 $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \105 $(INCLUDE_DIR))106$(MAKE_DIRS):107 $(call msg,MKDIR,,$@)108 $(Q)mkdir -p $@109 110# LLVM's ld.lld doesn't support all the architectures, so use it only on x86111ifeq ($(SRCARCH),x86)112LLD := lld113else114LLD := ld115endif116 117DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool118 119TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL)120 121$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)122 123BPFTOOL ?= $(DEFAULT_BPFTOOL)124$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \125 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool126 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \127 ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) \128 EXTRA_CFLAGS='-g -O0' \129 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \130 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \131 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \132 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin133 134$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \135 | $(BUILD_DIR)/libbpf136 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \137 EXTRA_CFLAGS='-g -O0' \138 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers139 140ifneq ($(BPFOBJ),$(HOST_BPFOBJ))141$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \142 | $(HOST_BUILD_DIR)/libbpf143 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \144 EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \145 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \146 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers147endif148 149$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)150ifeq ($(VMLINUX_H),)151 $(call msg,GEN,,$@)152 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@153else154 $(call msg,CP,,$@)155 $(Q)cp "$(VMLINUX_H)" $@156endif157 158$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \159 $(TOOLSDIR)/bpf/resolve_btfids/main.c \160 $(TOOLSDIR)/lib/rbtree.c \161 $(TOOLSDIR)/lib/zalloc.c \162 $(TOOLSDIR)/lib/string.c \163 $(TOOLSDIR)/lib/ctype.c \164 $(TOOLSDIR)/lib/str_error_r.c165 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \166 CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \167 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \168 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)169 170# Get Clang's default includes on this system, as opposed to those seen by171# '--target=bpf'. This fixes "missing" files on some architectures/distros,172# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.173#174# Use '-idirafter': Don't interfere with include mechanics except where the175# build would have failed anyways.176define get_sys_includes177$(shell $(1) -v -E - </dev/null 2>&1 \178 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \179$(shell $(1) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')180endef181 182# Determine target endianness.183IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \184 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')185MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)186 187CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))188BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \189 -I$(INCLUDE_DIR)190 191CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \192 -Wno-compare-distinct-pointer-types193 194# Build BPF object using Clang195# $1 - input .c file196# $2 - output .o file197# $3 - CFLAGS198define CLANG_BPF_BUILD_RULE199 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)200 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2201endef202# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32203define CLANG_NOALU32_BPF_BUILD_RULE204 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)205 $(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2206endef207# Build BPF object using GCC208define GCC_BPF_BUILD_RULE209 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)210 $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2211endef212 213BPF_PROGS_DIR := progs214BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE215BPF_SRCS := $(notdir $(wildcard $(BPF_PROGS_DIR)/*.c))216BPF_OBJS := $(patsubst %.c,$(OUTPUT)/%.bpf.o, $(BPF_SRCS))217BPF_SKELS := $(patsubst %.c,$(OUTPUT)/%.skel.h, $(BPF_SRCS))218TEST_GEN_FILES += $(BPF_OBJS)219 220$(BPF_PROGS_DIR)-bpfobjs := y221$(BPF_OBJS): $(OUTPUT)/%.bpf.o: \222 $(BPF_PROGS_DIR)/%.c \223 $(wildcard $(BPF_PROGS_DIR)/*.h) \224 $(INCLUDE_DIR)/vmlinux.h \225 $(wildcard $(BPFDIR)/hid_bpf_*.h) \226 $(wildcard $(BPFDIR)/*.bpf.h) \227 | $(OUTPUT) $(BPFOBJ)228 $(call $(BPF_BUILD_RULE),$<,$@, $(BPF_CFLAGS))229 230$(BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(OUTPUT)231 $(call msg,GEN-SKEL,$(BINARY),$@)232 $(Q)$(BPFTOOL) gen object $(<:.o=.linked1.o) $<233 $(Q)$(BPFTOOL) gen skeleton $(<:.o=.linked1.o) name $(notdir $(<:.bpf.o=)) > $@234 235$(OUTPUT)/%.o: %.c $(BPF_SKELS)236 $(call msg,CC,,$@)237 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@238 239$(OUTPUT)/%: $(OUTPUT)/%.o240 $(call msg,BINARY,,$@)241 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@242 243EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) feature bpftool \244 $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32)245