diff options
author | Sam Ravnborg <sam@mars.ravnborg.org> | 2004-08-11 00:09:55 +0200 |
---|---|---|
committer | Sam Ravnborg <sam@mars.ravnborg.org> | 2004-08-11 00:09:55 +0200 |
commit | 9c1bfb5fc7a096f137476b2a6787d7e00b02d777 (patch) | |
tree | 1903d2fcd8957f0a0daa4e843afdd1aab5d73157 /scripts | |
parent | 94869f86021d8d3e785e2222d151fb4b98d2ae2a (diff) | |
download | history-9c1bfb5fc7a096f137476b2a6787d7e00b02d777.tar.gz |
kbuild: Separate out host-progs handling
Concentrating all host-progs functionality in one file made a more
readable Makefile.lib - and allow for potential reuse of host-progs
functionality.
Processing of host-progs related stuff are avoided when no host-progs are specified.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts')
-rw-r--r-- | scripts/Makefile.build | 89 | ||||
-rw-r--r-- | scripts/Makefile.host | 152 | ||||
-rw-r--r-- | scripts/Makefile.lib | 49 |
3 files changed, 157 insertions, 133 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 008ac6cfd40511..458bedea2e7bfd 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -14,6 +14,11 @@ include $(obj)/Makefile include scripts/Makefile.lib +# Do not include host-progs rules unles needed +ifdef host-progs +include scripts/Makefile.host +endif + ifneq ($(KBUILD_SRC),) # Create output directory if not already present _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) @@ -275,90 +280,6 @@ $(multi-used-m) : %.o: $(multi-objs-m) FORCE targets += $(multi-used-y) $(multi-used-m) -# Compile programs on the host -# =========================================================================== -# host-progs := bin2hex -# Will compile bin2hex.c and create an executable named bin2hex -# -# host-progs := 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 -# -# host-progs := 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 - -# host-progs := 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 -# - -# Create executable from a single .c file -# host-csingle -> Executable -quiet_cmd_host-csingle = HOSTCC $@ - cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(HOST_LOADLIBES) -o $@ $< -$(host-csingle): %: %.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): %: $(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): %.o: %.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): %: $(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): %.o: %.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): %.o: %.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): %: $(host-cshobjs) FORCE - $(call if_changed,host-cshlib) - -targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ - $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) # Descending # --------------------------------------------------------------------------- diff --git a/scripts/Makefile.host b/scripts/Makefile.host new file mode 100644 index 00000000000000..d21a9639deb94d --- /dev/null +++ b/scripts/Makefile.host @@ -0,0 +1,152 @@ +# ========================================================================== +# 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) +# host-progs := bin2hex +# Will compile bin2hex.c and create an executable named bin2hex +# +# host-progs := 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 +# +# host-progs := 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 + +# host-progs := 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 + +# host-progs := tools/build may have been specified. Retreive directory +obj-dirs += $(foreach f,$(host-progs), $(if $(dir $(f)),$(dir $(f)))) +obj-dirs := $(strip $(sort $(filter-out ./,$(obj-dirs)))) + + +# C code +# Executables compiled from a single .c file +host-csingle := $(foreach m,$(host-progs),$(if $($(m)-objs),,$(m))) + +# C executables linked based on several .o files +host-cmulti := $(foreach m,$(host-progs),\ + $(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m)))) + +# Object (.o) files compiled from .c files +host-cobjs := $(sort $(foreach m,$(host-progs),$($(m)-objs))) + +# C++ code +# C++ executables compiled from at least on .cc file +# and zero or more .c files +host-cxxmulti := $(foreach m,$(host-progs),$(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)))) + +host-progs := $(addprefix $(obj)/,$(host-progs)) +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)) + +##### +# Handle options to gcc. Support building with separate output directory + +_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(HOSTCFLAGS_$(*F).o) +_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) $(HOSTCXXFLAGS_$(*F).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) $(HOST_LOADLIBES) -o $@ $< +$(host-csingle): %: %.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): %: $(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): %.o: %.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): %: $(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): %.o: %.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): %.o: %.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): %: $(host-cshobjs) FORCE + $(call if_changed,host-cshlib) + +targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ + $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) + diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index a47abc8af0a6e4..0388023241fe1d 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -60,41 +60,11 @@ subdir-obj-y := $(foreach o,$(obj-y),$(if $(filter-out $(o),$(notdir $(o))),$(o) # $(obj-dirs) is a list of directories that contain object files obj-dirs := $(dir $(multi-objs) $(subdir-obj-y)) -obj-dirs += $(foreach f,$(host-progs), $(if $(dir $(f)),$(dir $(f)))) -obj-dirs := $(strip $(sort $(filter-out ./,$(obj-dirs)))) # Replace multi-part objects by their individual parts, look at local dir only real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y) real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) -# C code -# Executables compiled from a single .c file -host-csingle := $(foreach m,$(host-progs),$(if $($(m)-objs),,$(m))) - -# C executables linked based on several .o files -host-cmulti := $(foreach m,$(host-progs),\ - $(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m)))) - -# Object (.o) files compiled from .c files -host-cobjs := $(sort $(foreach m,$(host-progs),$($(m)-objs))) - -# C++ code -# C++ executables compiled from at least on .cc file -# and zero or more .c files -host-cxxmulti := $(foreach m,$(host-progs),$(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)))) - # Add subdir path extra-y := $(addprefix $(obj)/,$(extra-y)) @@ -113,14 +83,6 @@ multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y)) multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) -host-progs := $(addprefix $(obj)/,$(host-progs)) -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)) # The temporary file to save gcc -MD generated dependencies must not # contain a comma @@ -136,12 +98,8 @@ depfile = $(subst $(comma),_,$(@D)/.$(@F).d) basename_flags = -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) modname_flags = $(if $(filter 1,$(words $(modname))),-DKBUILD_MODNAME=$(subst $(comma),_,$(subst -,_,$(modname)))) - _c_flags = $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(*F).o) _a_flags = $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o) -_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(HOSTCFLAGS_$(*F).o) -_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) $(HOSTCXXFLAGS_$(*F).o) - # If building the kernel in a separate objtree expand all occurrences # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). @@ -149,8 +107,6 @@ _hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) $(HOSTCXXFLAGS_$(*F).o) ifeq ($(KBUILD_SRC),) __c_flags = $(_c_flags) __a_flags = $(_a_flags) -__hostc_flags = $(_hostc_flags) -__hostcxx_flags = $(_hostcxx_flags) else # Prefix -I with $(srctree) if it is not an absolute path @@ -164,8 +120,6 @@ flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o))) # FIXME: Replace both with specific CFLAGS* statements in the makefiles __c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags) __a_flags = $(call flags,_a_flags) -__hostc_flags = -I$(obj) $(call flags,_hostc_flags) -__hostcxx_flags = -I$(obj) $(call flags,_hostcxx_flags) endif c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) \ @@ -175,9 +129,6 @@ c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) \ a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) \ $(__a_flags) $(modkern_aflags) -hostc_flags = -Wp,-MD,$(depfile) $(__hostc_flags) -hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags) - ld_flags = $(LDFLAGS) $(EXTRA_LDFLAGS) # Finds the multi-part object the current object will be linked into |