[linux-block.git] / scripts / 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-y := bin2hex
# Will compile bin2hex.c and create an executable named bin2hex
#
# hostprogs-y    := 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-y      := 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

__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))

# 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)))

# Object (.o) files used by the shared libaries
host-cshobjs	:= $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
host-cxxshobjs	:= $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))

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))
host-cshlib	:= $(addprefix $(obj)/,$(host-cshlib))
host-cxxshlib	:= $(addprefix $(obj)/,$(host-cxxshlib))
host-cshobjs	:= $(addprefix $(obj)/,$(host-cshobjs))
host-cxxshobjs	:= $(addprefix $(obj)/,$(host-cxxshobjs))

#####
# 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,-MD,$(depfile) $(_hostc_flags)
hostcxx_flags  = -Wp,-MD,$(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)

# Compile .c file, create position independent .o file
# host-cshobjs -> .o
quiet_cmd_host-cshobjs	= HOSTCC  -fPIC $@
      cmd_host-cshobjs	= $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
	$(call if_changed_dep,host-cshobjs)

# Compile .c file, create position independent .o file
# Note that plugin capable gcc versions can be either C or C++ based
# therefore plugin source files have to be compilable in both C and C++ mode.
# This is why a C++ compiler is invoked on a .c file.
# host-cxxshobjs -> .o
quiet_cmd_host-cxxshobjs	= HOSTCXX -fPIC $@
      cmd_host-cxxshobjs	= $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
	$(call if_changed_dep,host-cxxshobjs)

# Link a shared library, based on position independent .o files
# *.o -> .so shared library (host-cshlib)
quiet_cmd_host-cshlib	= HOSTLLD -shared $@
      cmd_host-cshlib	= $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
			  $(addprefix $(obj)/, $($(target-stem)-objs)) \
			  $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
$(host-cshlib): FORCE
	$(call if_changed,host-cshlib)
$(call multi_depend, $(host-cshlib), .so, -objs)

# Link a shared library, based on position independent .o files
# *.o -> .so shared library (host-cxxshlib)
quiet_cmd_host-cxxshlib	= HOSTLLD -shared $@
      cmd_host-cxxshlib	= $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
			  $(addprefix $(obj)/, $($(target-stem)-objs)) \
			  $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
$(host-cxxshlib): FORCE
	$(call if_changed,host-cxxshlib)
$(call multi_depend, $(host-cxxshlib), .so, -objs)

targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)\
	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
Commit	Line	Data
	1	# SPDX-License-Identifier: GPL-2.0
	2
	3	# LEX
	4	# ---------------------------------------------------------------------------
	5	quiet_cmd_flex = LEX $@
	6	cmd_flex = $(LEX) -o$@ -L $<
	7
	8	$(obj)/%.lex.c: $(src)/%.l FORCE
	9	$(call if_changed,flex)
	10
	11	# YACC
	12	# ---------------------------------------------------------------------------
	13	quiet_cmd_bison = YACC $(basename $@).[ch]
	14	cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $<
	15
	16	$(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
	17	$(call if_changed,bison)
	18
	19	# ==========================================================================
	20	# Building binaries on the host system
	21	# Binaries are used during the compilation of the kernel, for example
	22	# to preprocess a data file.
	23	#
	24	# Both C and C++ are supported, but preferred language is C for such utilities.
	25	#
	26	# Sample syntax (see Documentation/kbuild/makefiles.rst for reference)
	27	# hostprogs-y := bin2hex
	28	# Will compile bin2hex.c and create an executable named bin2hex
	29	#
	30	# hostprogs-y := lxdialog
	31	# lxdialog-objs := checklist.o lxdialog.o
	32	# Will compile lxdialog.c and checklist.c, and then link the executable
	33	# lxdialog, based on checklist.o and lxdialog.o
	34	#
	35	# hostprogs-y := qconf
	36	# qconf-cxxobjs := qconf.o
	37	# qconf-objs := menu.o
	38	# Will compile qconf as a C++ program, and menu as a C program.
	39	# They are linked as C++ code to the executable qconf
	40
	41	__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
	42	host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
	43	host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
	44
	45	# C code
	46	# Executables compiled from a single .c file
	47	host-csingle := $(foreach m,$(__hostprogs), \
	48	$(if $($(m)-objs)$($(m)-cxxobjs),,$(m)))
	49
	50	# C executables linked based on several .o files
	51	host-cmulti := $(foreach m,$(__hostprogs),\
	52	$(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
	53
	54	# Object (.o) files compiled from .c files
	55	host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
	56
	57	# C++ code
	58	# C++ executables compiled from at least one .cc file
	59	# and zero or more .c files
	60	host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
	61
	62	# C++ Object (.o) files compiled from .cc files
	63	host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
	64
	65	# Object (.o) files used by the shared libaries
	66	host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
	67	host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
	68
	69	host-csingle := $(addprefix $(obj)/,$(host-csingle))
	70	host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
	71	host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
	72	host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
	73	host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
	74	host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
	75	host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
	76	host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
	77	host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
	78
	79	#####
	80	# Handle options to gcc. Support building with separate output directory
	81
	82	_hostc_flags = $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
	83	$(HOSTCFLAGS_$(target-stem).o)
	84	_hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
	85	$(HOSTCXXFLAGS_$(target-stem).o)
	86
	87	# $(objtree)/$(obj) for including generated headers from checkin source files
	88	ifeq ($(KBUILD_EXTMOD),)
	89	ifdef building_out_of_srctree
	90	_hostc_flags += -I $(objtree)/$(obj)
	91	_hostcxx_flags += -I $(objtree)/$(obj)
	92	endif
	93	endif
	94
	95	hostc_flags = -Wp,-MD,$(depfile) $(_hostc_flags)
	96	hostcxx_flags = -Wp,-MD,$(depfile) $(_hostcxx_flags)
	97
	98	#####
	99	# Compile programs on the host
	100
	101	# Create executable from a single .c file
	102	# host-csingle -> Executable
	103	quiet_cmd_host-csingle = HOSTCC $@
	104	cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(KBUILD_HOSTLDFLAGS) -o $@ $< \
	105	$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem))
	106	$(host-csingle): $(obj)/%: $(src)/%.c FORCE
	107	$(call if_changed_dep,host-csingle)
	108
	109	# Link an executable based on list of .o files, all plain c
	110	# host-cmulti -> executable
	111	quiet_cmd_host-cmulti = HOSTLD $@
	112	cmd_host-cmulti = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ \
	113	$(addprefix $(obj)/, $($(target-stem)-objs)) \
	114	$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem))
	115	$(host-cmulti): FORCE
	116	$(call if_changed,host-cmulti)
	117	$(call multi_depend, $(host-cmulti), , -objs)
	118
	119	# Create .o file from a single .c file
	120	# host-cobjs -> .o
	121	quiet_cmd_host-cobjs = HOSTCC $@
	122	cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $<
	123	$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
	124	$(call if_changed_dep,host-cobjs)
	125
	126	# Link an executable based on list of .o files, a mixture of .c and .cc
	127	# host-cxxmulti -> executable
	128	quiet_cmd_host-cxxmulti = HOSTLD $@
	129	cmd_host-cxxmulti = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -o $@ \
	130	$(foreach o,objs cxxobjs,\
	131	$(addprefix $(obj)/, $($(target-stem)-$(o)))) \
	132	$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem))
	133	$(host-cxxmulti): FORCE
	134	$(call if_changed,host-cxxmulti)
	135	$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs)
	136
	137	# Create .o file from a single .cc (C++) file
	138	quiet_cmd_host-cxxobjs = HOSTCXX $@
	139	cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
	140	$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
	141	$(call if_changed_dep,host-cxxobjs)
	142
	143	# Compile .c file, create position independent .o file
	144	# host-cshobjs -> .o
	145	quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
	146	cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
	147	$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
	148	$(call if_changed_dep,host-cshobjs)
	149
	150	# Compile .c file, create position independent .o file
	151	# Note that plugin capable gcc versions can be either C or C++ based
	152	# therefore plugin source files have to be compilable in both C and C++ mode.
	153	# This is why a C++ compiler is invoked on a .c file.
	154	# host-cxxshobjs -> .o
	155	quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@
	156	cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
	157	$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
	158	$(call if_changed_dep,host-cxxshobjs)
	159
	160	# Link a shared library, based on position independent .o files
	161	# *.o -> .so shared library (host-cshlib)
	162	quiet_cmd_host-cshlib = HOSTLLD -shared $@
	163	cmd_host-cshlib = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
	164	$(addprefix $(obj)/, $($(target-stem)-objs)) \
	165	$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
	166	$(host-cshlib): FORCE
	167	$(call if_changed,host-cshlib)
	168	$(call multi_depend, $(host-cshlib), .so, -objs)
	169
	170	# Link a shared library, based on position independent .o files
	171	# *.o -> .so shared library (host-cxxshlib)
	172	quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
	173	cmd_host-cxxshlib = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
	174	$(addprefix $(obj)/, $($(target-stem)-objs)) \
	175	$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
	176	$(host-cxxshlib): FORCE
	177	$(call if_changed,host-cxxshlib)
	178	$(call multi_depend, $(host-cxxshlib), .so, -objs)
	179
	180	targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
	181	$(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)