Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

# ==========================================================================

# 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++ is supported, but preferred language is C for such utilities.

#

# Samle syntax (see Documentation/kbuild/makefile.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 consist of

# expr.o and type.o (they are both compiled as C code and the object file

# 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)))

# 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 on .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. Retreive 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)