# SPDX-License-Identifier: GPL-2.0 # based on tools/testing/selftest/bpf/Makefileinclude ../../../build/Build.includeinclude ../../../scripts/Makefile.archinclude ../../../scripts/Makefile.include TEST_PROGS := hid-core.shTEST_PROGS += hid-apple.shTEST_PROGS += hid-gamepad.shTEST_PROGS += hid-ite.shTEST_PROGS += hid-keyboard.shTEST_PROGS += hid-mouse.shTEST_PROGS += hid-multitouch.shTEST_PROGS += hid-sony.shTEST_PROGS += hid-tablet.shTEST_PROGS += hid-usb_crash.shTEST_PROGS += hid-wacom.sh TEST_FILES := run-hid-tools-tests.shTEST_FILES += tests CXX ?= $(CROSS_COMPILE)g++ HOSTPKG_CONFIG := pkg-config CFLAGS += -g -O0 -rdynamic -Wall -Werror -I$(OUTPUT) $(KHDR_INCLUDES)CFLAGS += -I$(OUTPUT)/tools/include LDLIBS += -lelf -lz -lrt -lpthread # Silence some warnings when compiled with clangifneq ($(LLVM),)CFLAGS += -Wno-unused-command-line-argumentendif # Order correspond to 'make run_tests' orderTEST_GEN_PROGS = hid_bpf hidraw # Emit succinct information message describing current building step# $1 - generic step name (e.g., CC, LINK, etc);# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];# $3 - target (assumed to be file); only file name will be emitted;# $4 - optional extra arg, emitted as-is, if provided.ifeq ($(V),1)msg =elsemsg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";MAKEFLAGS += --no-print-directorysubmake_extras := feature_display=0endif # override lib.mk's default rulesOVERRIDE_TARGETS := 1override define CLEAN	$(call msg,CLEAN)	$(Q)$(RM) -r $(TEST_GEN_PROGS)	$(Q)$(RM) -r $(EXTRA_CLEAN)endef include ../lib.mk TOOLSDIR := $(top_srcdir)/toolsLIBDIR := $(TOOLSDIR)/libBPFDIR := $(LIBDIR)/bpfTOOLSINCDIR := $(TOOLSDIR)/includeBPFTOOLDIR := $(TOOLSDIR)/bpf/bpftoolSCRATCH_DIR := $(OUTPUT)/toolsBUILD_DIR := $(SCRATCH_DIR)/buildINCLUDE_DIR := $(SCRATCH_DIR)/includeBPFOBJ := $(BUILD_DIR)/libbpf/libbpf.aifneq ($(CROSS_COMPILE),)HOST_BUILD_DIR		:= $(BUILD_DIR)/hostHOST_SCRATCH_DIR	:= $(OUTPUT)/host-toolsHOST_INCLUDE_DIR	:= $(HOST_SCRATCH_DIR)/includeelseHOST_BUILD_DIR		:= $(BUILD_DIR)HOST_SCRATCH_DIR	:= $(SCRATCH_DIR)HOST_INCLUDE_DIR	:= $(INCLUDE_DIR)endifHOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.aRESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\		     ../../../../vmlinux				\		     /sys/kernel/btf/vmlinux				\		     /boot/vmlinux-$(shell uname -r)VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))ifeq ($(VMLINUX_BTF),)$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")endif # Define simple and short `make test_progs`, `make test_sysctl`, etc targets# to build individual tests.# NOTE: Semicolon at the end is critical to override lib.mk's default static# rule for binaries.$(notdir $(TEST_GEN_PROGS)): %: $(OUTPUT)/% ; # sort removes libbpf duplicates when not cross-buildingMAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf		\	       $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids	\	       $(INCLUDE_DIR))$(MAKE_DIRS):	$(call msg,MKDIR,,$@)	$(Q)mkdir -p $@ DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL) $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ) BPFTOOL ?= $(DEFAULT_BPFTOOL)$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \		    $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)			       \		    ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) 	       \		    EXTRA_CFLAGS='-g -O0'				       \		    OUTPUT=$(HOST_BUILD_DIR)/bpftool/			       \		    LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/		       \		    LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/			       \		    prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \	   | $(BUILD_DIR)/libbpf	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \		    EXTRA_CFLAGS='-g -O0'				       \		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers ifneq ($(BPFOBJ),$(HOST_BPFOBJ))$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \		| $(HOST_BUILD_DIR)/libbpf	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR)                             \		    EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE=		       \		    OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \		    DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headersendif $(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)ifeq ($(VMLINUX_H),)	$(call msg,GEN,,$@)	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@else	$(call msg,CP,,$@)	$(Q)cp "$(VMLINUX_H)" $@endif $(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids	\		       $(TOOLSDIR)/bpf/resolve_btfids/main.c	\		       $(TOOLSDIR)/lib/rbtree.c			\		       $(TOOLSDIR)/lib/zalloc.c			\		       $(TOOLSDIR)/lib/string.c			\		       $(TOOLSDIR)/lib/ctype.c			\		       $(TOOLSDIR)/lib/str_error_r.c	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids	\		CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \		LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \		OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ) # Get Clang's default includes on this system, as opposed to those seen by# '--target=bpf'. This fixes "missing" files on some architectures/distros,# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.## Use '-idirafter': Don't interfere with include mechanics except where the# build would have failed anyways.define get_sys_includes$(shell $(1) -v -E - </dev/null 2>&1 \	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \$(shell $(1) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')endef # Determine target endianness.IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \			grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) 		\	     -Wno-microsoft-anon-tag                                    \	     -fms-extensions                                            \	     -I$(INCLUDE_DIR) CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \	       -Wno-compare-distinct-pointer-types # Build BPF object using Clang# $1 - input .c file# $2 - output .o file# $3 - CFLAGSdefine CLANG_BPF_BUILD_RULE	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)	$(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2endef# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32define CLANG_NOALU32_BPF_BUILD_RULE	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)	$(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2endef# Build BPF object using GCCdefine GCC_BPF_BUILD_RULE	$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)	$(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2endef BPF_PROGS_DIR := progsBPF_BUILD_RULE := CLANG_BPF_BUILD_RULEBPF_SRCS := $(notdir $(wildcard $(BPF_PROGS_DIR)/*.c))BPF_OBJS := $(patsubst %.c,$(OUTPUT)/%.bpf.o, $(BPF_SRCS))BPF_SKELS := $(patsubst %.c,$(OUTPUT)/%.skel.h, $(BPF_SRCS))TEST_GEN_FILES += $(BPF_OBJS) $(BPF_PROGS_DIR)-bpfobjs := y$(BPF_OBJS): $(OUTPUT)/%.bpf.o:				\	     $(BPF_PROGS_DIR)/%.c			\	     $(wildcard $(BPF_PROGS_DIR)/*.h)		\	     $(INCLUDE_DIR)/vmlinux.h				\	     $(wildcard $(BPFDIR)/hid_bpf_*.h)			\	     $(wildcard $(BPFDIR)/*.bpf.h)			\	     | $(OUTPUT) $(BPFOBJ)	$(call $(BPF_BUILD_RULE),$<,$@, $(BPF_CFLAGS)) $(BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(OUTPUT)	$(call msg,GEN-SKEL,$(BINARY),$@)	$(Q)$(BPFTOOL) gen object $(<:.o=.linked1.o) $<	$(Q)$(BPFTOOL) gen skeleton $(<:.o=.linked1.o) name $(notdir $(<:.bpf.o=)) > $@ $(OUTPUT)/%.o: %.c $(BPF_SKELS) hid_common.h	$(call msg,CC,,$@)	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@ $(OUTPUT)/%: $(OUTPUT)/%.o	$(call msg,BINARY,,$@)	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@ EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) feature bpftool	\	$(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32)