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: /proc/self/cwd/sym/root/usr/lib/modules/5.15.0-1077-aws/build/scripts/ [ drwxr-xr-x ]
name : Makefile.host # SPDX-License-Identifier: GPL-2.0 # LEX # --------------------------------------------------------------------------- quiet_cmd_flex = LEX $@ cmd_flex = $(LEX) -o$@ -L $< $(obj)/%.lex.c: $(src)/%.l FORCE $(call if_changed,flex) # YACC # --------------------------------------------------------------------------- quiet_cmd_bison = YACC $(basename $@).[ch] cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $< $(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE $(call if_changed,bison) # ========================================================================== # Building binaries on the host system # Binaries are used during the compilation of the kernel, for example # to preprocess a data file. # # Both C and C++ are supported, but preferred language is C for such utilities. # # Sample syntax (see Documentation/kbuild/makefiles.rst for reference) # hostprogs := bin2hex # Will compile bin2hex.c and create an executable named bin2hex # # hostprogs := lxdialog # lxdialog-objs := checklist.o lxdialog.o # Will compile lxdialog.c and checklist.c, and then link the executable # lxdialog, based on checklist.o and lxdialog.o # # hostprogs := qconf # qconf-cxxobjs := qconf.o # qconf-objs := menu.o # Will compile qconf as a C++ program, and menu as a C program. # They are linked as C++ code to the executable qconf # C code # Executables compiled from a single .c file host-csingle := $(foreach m,$(hostprogs), \ $(if $($(m)-objs)$($(m)-cxxobjs),,$(m))) # C executables linked based on several .o files host-cmulti := $(foreach m,$(hostprogs),\ $(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m)))) # Object (.o) files compiled from .c files host-cobjs := $(sort $(foreach m,$(hostprogs),$($(m)-objs))) # C++ code # C++ executables compiled from at least one .cc file # and zero or more .c files host-cxxmulti := $(foreach m,$(hostprogs),$(if $($(m)-cxxobjs),$(m))) # C++ Object (.o) files compiled from .cc files host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) host-csingle := $(addprefix $(obj)/,$(host-csingle)) host-cmulti := $(addprefix $(obj)/,$(host-cmulti)) host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) ##### # Handle options to gcc. Support building with separate output directory _hostc_flags = $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS) \ $(HOSTCFLAGS_$(target-stem).o) _hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \ $(HOSTCXXFLAGS_$(target-stem).o) # $(objtree)/$(obj) for including generated headers from checkin source files ifeq ($(KBUILD_EXTMOD),) ifdef building_out_of_srctree _hostc_flags += -I $(objtree)/$(obj) _hostcxx_flags += -I $(objtree)/$(obj) endif endif hostc_flags = -Wp,-MMD,$(depfile) $(_hostc_flags) hostcxx_flags = -Wp,-MMD,$(depfile) $(_hostcxx_flags) ##### # Compile programs on the host # Create executable from a single .c file # host-csingle -> Executable quiet_cmd_host-csingle = HOSTCC $@ cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(KBUILD_HOSTLDFLAGS) -o $@ $< \ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem)) $(host-csingle): $(obj)/%: $(src)/%.c FORCE $(call if_changed_dep,host-csingle) # Link an executable based on list of .o files, all plain c # host-cmulti -> executable quiet_cmd_host-cmulti = HOSTLD $@ cmd_host-cmulti = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ \ $(addprefix $(obj)/, $($(target-stem)-objs)) \ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem)) $(host-cmulti): FORCE $(call if_changed,host-cmulti) $(call multi_depend, $(host-cmulti), , -objs) # Create .o file from a single .c file # host-cobjs -> .o quiet_cmd_host-cobjs = HOSTCC $@ cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $< $(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE $(call if_changed_dep,host-cobjs) # Link an executable based on list of .o files, a mixture of .c and .cc # host-cxxmulti -> executable quiet_cmd_host-cxxmulti = HOSTLD $@ cmd_host-cxxmulti = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -o $@ \ $(foreach o,objs cxxobjs,\ $(addprefix $(obj)/, $($(target-stem)-$(o)))) \ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem)) $(host-cxxmulti): FORCE $(call if_changed,host-cxxmulti) $(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs) # Create .o file from a single .cc (C++) file quiet_cmd_host-cxxobjs = HOSTCXX $@ cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $< $(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE $(call if_changed_dep,host-cxxobjs) targets += $(host-csingle) $(host-cmulti) $(host-cobjs) \ $(host-cxxmulti) $(host-cxxobjs)