[mirror_ubuntu-zesty-kernel.git] / scripts / Makefile.host

# ==========================================================================
# 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.txt 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

# hostcc-option
# Usage: cflags-y += $(call hostcc-option,-march=winchip-c6,-march=i586)

hostcc-option = $(call try-run,\
	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))

__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))))

# output directory for programs/.o files
# hostprogs-y := tools/build may have been specified.
# Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation
host-objdirs := $(dir $(__hostprogs) $(host-cobjs) $(host-cxxobjs))

host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))


__hostprogs     := $(addprefix $(obj)/,$(__hostprogs))
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))
host-objdirs    := $(addprefix $(obj)/,$(host-objdirs))

obj-dirs += $(host-objdirs)

#####
# Handle options to gcc. Support building with separate output directory

_hostc_flags   = $(HOSTCFLAGS)   $(HOST_EXTRACFLAGS)   \
                 $(HOSTCFLAGS_$(basetarget).o)
_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
                 $(HOSTCXXFLAGS_$(basetarget).o)

ifeq ($(KBUILD_SRC),)
__hostc_flags	= $(_hostc_flags)
__hostcxx_flags	= $(_hostcxx_flags)
else
__hostc_flags	= -I$(obj) $(call flags,_hostc_flags)
__hostcxx_flags	= -I$(obj) $(call flags,_hostcxx_flags)
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) -o $@ $< \
	  	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(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) $(HOSTLDFLAGS) -o $@ \
			  $(addprefix $(obj)/,$($(@F)-objs)) \
			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(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) $(HOSTLDFLAGS) -o $@ \
			  $(foreach o,objs cxxobjs,\
			  $(addprefix $(obj)/,$($(@F)-$(o)))) \
			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(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) $(HOSTLDFLAGS) -shared -o $@ \
			  $(addprefix $(obj)/,$($(@F:.so=-objs))) \
			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(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) $(HOSTLDFLAGS) -shared -o $@ \
			  $(addprefix $(obj)/,$($(@F:.so=-objs))) \
			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(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
1da177e4 LT	1	# ==========================================================================
	2	# Building binaries on the host system
	3	# Binaries are used during the compilation of the kernel, for example
	4	# to preprocess a data file.
	5	#
3156fd05	6	# Both C and C++ are supported, but preferred language is C for such utilities.
1da177e4	7	#
3156fd05	8	# Sample syntax (see Documentation/kbuild/makefiles.txt for reference)
1da177e4 LT	9	# hostprogs-y := bin2hex
	10	# Will compile bin2hex.c and create an executable named bin2hex
	11	#
	12	# hostprogs-y := lxdialog
	13	# lxdialog-objs := checklist.o lxdialog.o
	14	# Will compile lxdialog.c and checklist.c, and then link the executable
	15	# lxdialog, based on checklist.o and lxdialog.o
	16	#
	17	# hostprogs-y := qconf
	18	# qconf-cxxobjs := qconf.o
	19	# qconf-objs := menu.o
	20	# Will compile qconf as a C++ program, and menu as a C program.
	21	# They are linked as C++ code to the executable qconf
	22
24403874 ER	23	# hostcc-option
	24	# Usage: cflags-y += $(call hostcc-option,-march=winchip-c6,-march=i586)
	25
	26	hostcc-option = $(call try-run,\
	27	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
	28
8f5cbd7e	29	__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
24403874 ER	30	host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
24403874 ER	31	host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
1da177e4	32
1da177e4 LT	33	# C code
1da177e4 LT	34	# Executables compiled from a single .c file
edb950c1 MY	35	host-csingle := $(foreach m,$(__hostprogs), \
edb950c1 MY	36	$(if $($(m)-objs)$($(m)-cxxobjs),,$(m)))
1da177e4 LT	37
	38	# C executables linked based on several .o files
	39	host-cmulti := $(foreach m,$(__hostprogs),\
	40	$(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
	41
	42	# Object (.o) files compiled from .c files
	43	host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
	44
	45	# C++ code
d8d9efe2	46	# C++ executables compiled from at least one .cc file
1da177e4 LT	47	# and zero or more .c files
	48	host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
	49
	50	# C++ Object (.o) files compiled from .cc files
	51	host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
	52
24403874 ER	53	# Object (.o) files used by the shared libaries
	54	host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
	55	host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
	56
7b5b8203	57	# output directory for programs/.o files
1791ff71 MY	58	# hostprogs-y := tools/build may have been specified.
	59	# Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation
	60	host-objdirs := $(dir $(__hostprogs) $(host-cobjs) $(host-cxxobjs))
7b5b8203 SR	61
	62	host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
	63
	64
1da177e4 LT	65	__hostprogs := $(addprefix $(obj)/,$(__hostprogs))
	66	host-csingle := $(addprefix $(obj)/,$(host-csingle))
	67	host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
	68	host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
	69	host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
	70	host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
24403874 ER	71	host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
	72	host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
	73	host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
	74	host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
9870a93d PR	75	host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
	76
	77	obj-dirs += $(host-objdirs)
1da177e4 LT	78
	79	#####
	80	# Handle options to gcc. Support building with separate output directory
	81
5e8d780d SR	82	_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
	83	$(HOSTCFLAGS_$(basetarget).o)
	84	_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
	85	$(HOSTCXXFLAGS_$(basetarget).o)
1da177e4 LT	86
	87	ifeq ($(KBUILD_SRC),)
	88	__hostc_flags = $(_hostc_flags)
	89	__hostcxx_flags = $(_hostcxx_flags)
	90	else
	91	__hostc_flags = -I$(obj) $(call flags,_hostc_flags)
	92	__hostcxx_flags = -I$(obj) $(call flags,_hostcxx_flags)
	93	endif
	94
	95	hostc_flags = -Wp,-MD,$(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 $@
e0af0d85 MU	104	cmd_host-csingle = $(HOSTCC) $(hostc_flags) -o $@ $< \
e0af0d85 MU	105	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
767e581d	106	$(host-csingle): $(obj)/%: $(src)/%.c FORCE
1da177e4 LT	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) $(HOSTLDFLAGS) -o $@ \
	113	$(addprefix $(obj)/,$($(@F)-objs)) \
	114	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
97e3226e	115	$(host-cmulti): FORCE
1da177e4	116	$(call if_changed,host-cmulti)
97e3226e	117	$(call multi_depend, $(host-cmulti), , -objs)
1da177e4 LT	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 $@ $<
767e581d	123	$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
1da177e4 LT	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) $(HOSTLDFLAGS) -o $@ \
	130	$(foreach o,objs cxxobjs,\
	131	$(addprefix $(obj)/,$($(@F)-$(o)))) \
	132	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
97e3226e	133	$(host-cxxmulti): FORCE
1da177e4	134	$(call if_changed,host-cxxmulti)
97e3226e	135	$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs)
1da177e4 LT	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 $@ $<
767e581d	140	$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
1da177e4 LT	141	$(call if_changed_dep,host-cxxobjs)
1da177e4 LT	142
24403874 ER	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) $(HOSTLDFLAGS) -shared -o $@ \
	164	$(addprefix $(obj)/,$($(@F:.so=-objs))) \
	165	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
	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) $(HOSTLDFLAGS) -shared -o $@ \
	174	$(addprefix $(obj)/,$($(@F:.so=-objs))) \
	175	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
	176	$(host-cxxshlib): FORCE
	177	$(call if_changed,host-cxxshlib)
	178	$(call multi_depend, $(host-cxxshlib), .so, -objs)
	179
1da177e4	180	targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
24403874	181	$(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)