[deliverable/linux.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

# hostprogs-y := conf
# conf-objs  := conf.o libkconfig.so
# libkconfig-objs := expr.o type.o
# Will create a shared library named libkconfig.so that consists of
# expr.o and type.o (they are both compiled as C code and the object files
# are made as position independent code).
# conf.c is compiled as a C program, and conf.o is linked together with
# libkconfig.so as the executable conf.
# Note: Shared libraries consisting of C++ files are not supported

__hostprogs := $(sort $(hostprogs-y) $(hostprogs-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)))

# Shared libaries (only .c supported)
# Shared libraries (.so) - all .so files referenced in "xxx-objs"
host-cshlib	:= $(sort $(filter %.so, $(host-cobjs)))
# Remove .so files from "xxx-objs"
host-cobjs	:= $(filter-out %.so,$(host-cobjs))

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

# output directory for programs/.o files
# hostprogs-y := tools/build may have been specified. Retrieve directory
host-objdirs := $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f))))
# directory of .o files from prog-objs notation
host-objdirs += $(foreach f,$(host-cmulti),                  \
                    $(foreach m,$($(f)-objs),                \
                        $(if $(dir $(m)),$(dir $(m)))))
# directory of .o files from prog-cxxobjs notation
host-objdirs += $(foreach f,$(host-cxxmulti),                  \
                    $(foreach m,$($(f)-cxxobjs),                \
                        $(if $(dir $(m)),$(dir $(m)))))

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-cshobjs	:= $(addprefix $(obj)/,$(host-cshobjs))
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): $(obj)/%: $(host-cobjs) $(host-cshlib) FORCE
	$(call if_changed,host-cmulti)

# 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): $(obj)/%: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE
	$(call if_changed,host-cxxmulti)

# 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)

# 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): $(obj)/%: $(host-cshobjs) FORCE
	$(call if_changed,host-cshlib)

targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)\
	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs)
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
	23	# hostprogs-y := conf
	24	# conf-objs := conf.o libkconfig.so
	25	# libkconfig-objs := expr.o type.o
3156fd05 RD	26	# Will create a shared library named libkconfig.so that consists of
3156fd05 RD	27	# expr.o and type.o (they are both compiled as C code and the object files
1da177e4	28	# are made as position independent code).
3156fd05	29	# conf.c is compiled as a C program, and conf.o is linked together with
1da177e4 LT	30	# libkconfig.so as the executable conf.
	31	# Note: Shared libraries consisting of C++ files are not supported
	32
8f5cbd7e	33	__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
1da177e4	34
1da177e4 LT	35	# C code
1da177e4 LT	36	# Executables compiled from a single .c file
edb950c1 MY	37	host-csingle := $(foreach m,$(__hostprogs), \
edb950c1 MY	38	$(if $($(m)-objs)$($(m)-cxxobjs),,$(m)))
1da177e4 LT	39
	40	# C executables linked based on several .o files
	41	host-cmulti := $(foreach m,$(__hostprogs),\
	42	$(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
	43
	44	# Object (.o) files compiled from .c files
	45	host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
	46
	47	# C++ code
d8d9efe2	48	# C++ executables compiled from at least one .cc file
1da177e4 LT	49	# and zero or more .c files
	50	host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
	51
	52	# C++ Object (.o) files compiled from .cc files
	53	host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
	54
	55	# Shared libaries (only .c supported)
	56	# Shared libraries (.so) - all .so files referenced in "xxx-objs"
	57	host-cshlib := $(sort $(filter %.so, $(host-cobjs)))
	58	# Remove .so files from "xxx-objs"
	59	host-cobjs := $(filter-out %.so,$(host-cobjs))
	60
	61	#Object (.o) files used by the shared libaries
	62	host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
	63
7b5b8203	64	# output directory for programs/.o files
3156fd05	65	# hostprogs-y := tools/build may have been specified. Retrieve directory
7b5b8203 SR	66	host-objdirs := $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f))))
	67	# directory of .o files from prog-objs notation
	68	host-objdirs += $(foreach f,$(host-cmulti), \
	69	$(foreach m,$($(f)-objs), \
	70	$(if $(dir $(m)),$(dir $(m)))))
	71	# directory of .o files from prog-cxxobjs notation
	72	host-objdirs += $(foreach f,$(host-cxxmulti), \
	73	$(foreach m,$($(f)-cxxobjs), \
	74	$(if $(dir $(m)),$(dir $(m)))))
	75
	76	host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
	77
	78
1da177e4 LT	79	__hostprogs := $(addprefix $(obj)/,$(__hostprogs))
	80	host-csingle := $(addprefix $(obj)/,$(host-csingle))
	81	host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
	82	host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
	83	host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
	84	host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
	85	host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
	86	host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
9870a93d PR	87	host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
	88
	89	obj-dirs += $(host-objdirs)
1da177e4 LT	90
	91	#####
	92	# Handle options to gcc. Support building with separate output directory
	93
5e8d780d SR	94	_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
	95	$(HOSTCFLAGS_$(basetarget).o)
	96	_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
	97	$(HOSTCXXFLAGS_$(basetarget).o)
1da177e4 LT	98
	99	ifeq ($(KBUILD_SRC),)
	100	__hostc_flags = $(_hostc_flags)
	101	__hostcxx_flags = $(_hostcxx_flags)
	102	else
	103	__hostc_flags = -I$(obj) $(call flags,_hostc_flags)
	104	__hostcxx_flags = -I$(obj) $(call flags,_hostcxx_flags)
	105	endif
	106
	107	hostc_flags = -Wp,-MD,$(depfile) $(__hostc_flags)
	108	hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags)
	109
	110	#####
	111	# Compile programs on the host
	112
	113	# Create executable from a single .c file
	114	# host-csingle -> Executable
	115	quiet_cmd_host-csingle = HOSTCC $@
e0af0d85 MU	116	cmd_host-csingle = $(HOSTCC) $(hostc_flags) -o $@ $< \
e0af0d85 MU	117	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
767e581d	118	$(host-csingle): $(obj)/%: $(src)/%.c FORCE
1da177e4 LT	119	$(call if_changed_dep,host-csingle)
	120
	121	# Link an executable based on list of .o files, all plain c
	122	# host-cmulti -> executable
	123	quiet_cmd_host-cmulti = HOSTLD $@
	124	cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
	125	$(addprefix $(obj)/,$($(@F)-objs)) \
	126	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
767e581d	127	$(host-cmulti): $(obj)/%: $(host-cobjs) $(host-cshlib) FORCE
1da177e4 LT	128	$(call if_changed,host-cmulti)
	129
	130	# Create .o file from a single .c file
	131	# host-cobjs -> .o
	132	quiet_cmd_host-cobjs = HOSTCC $@
	133	cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $<
767e581d	134	$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
1da177e4 LT	135	$(call if_changed_dep,host-cobjs)
	136
	137	# Link an executable based on list of .o files, a mixture of .c and .cc
	138	# host-cxxmulti -> executable
	139	quiet_cmd_host-cxxmulti = HOSTLD $@
	140	cmd_host-cxxmulti = $(HOSTCXX) $(HOSTLDFLAGS) -o $@ \
	141	$(foreach o,objs cxxobjs,\
	142	$(addprefix $(obj)/,$($(@F)-$(o)))) \
	143	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
767e581d	144	$(host-cxxmulti): $(obj)/%: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE
1da177e4 LT	145	$(call if_changed,host-cxxmulti)
	146
	147	# Create .o file from a single .cc (C++) file
	148	quiet_cmd_host-cxxobjs = HOSTCXX $@
	149	cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
767e581d	150	$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
1da177e4 LT	151	$(call if_changed_dep,host-cxxobjs)
	152
	153	# Compile .c file, create position independent .o file
	154	# host-cshobjs -> .o
	155	quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
	156	cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
767e581d	157	$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
1da177e4 LT	158	$(call if_changed_dep,host-cshobjs)
	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))
767e581d	166	$(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
1da177e4 LT	167	$(call if_changed,host-cshlib)
	168
	169	targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
38385f8f	170	$(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs)