diff options
Diffstat (limited to 'mk/subdir.mk')
| -rw-r--r-- | mk/subdir.mk | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/mk/subdir.mk b/mk/subdir.mk new file mode 100644 index 0000000..0cb5f71 --- /dev/null +++ b/mk/subdir.mk @@ -0,0 +1,150 @@ +# Input +# +# subdirs tells the subdirectories to descend +# +# Output +# +# set srcs +# set cflags-$(oname) cflags-remove-$(oname) +# aflags-$(oname) aflags-remove-$(oname) +# cppflags-$(oname) cppflags-remove-$(oname) +# incdirs-$(oname) +# incdirs-lib$(libname)-$(sm) [if libname is defined] +# cppflags-lib$(libname)-$(sm) [if libname is defined] +# cflags-lib$(libname)-$(sm) [if libname is defined] +# for each file found, oname is the name of the object file for corresponding +# source file + +srcs := + +define process-subdir-srcs-y +ifeq ($$(sub-dir),.) +srcs += $1 +oname := $(out-dir)/$(base-prefix)$(basename $1).o +else +ifneq ($(filter /%,$(1)),) +# $1 is an absolute path - start with "/" +srcs += $1 +oname := $(out-dir)/$(base-prefix)$(basename $1).o +else +srcs += $(sub-dir)/$1 +oname := $(out-dir)/$(base-prefix)$(basename $$(sub-dir)/$1).o +endif +endif +cflags-$$(oname) := $$(cflags-y) $$(cflags-$(1)-y) +cflags-remove-$$(oname) := $$(cflags-remove-y) \ + $$(cflags-remove-$(1)-y) +cppflags-$$(oname) := $$(cppflags-y) $$(cppflags-$(1)-y) +cppflags-remove-$$(oname) := $$(cppflags-remove-y) \ + $$(cppflags-remove-$(1)-y) +aflags-$$(oname) := $$(aflags-y) $$(aflags-$(1)-y) +aflags-remove-$$(oname) := $$(aflags-remove-y) \ + $$(aflags-remove-$(1)-y) +incdirs-$$(oname) := $$(thissubdir-incdirs) $$(addprefix $(sub-dir)/,$$(incdirs-$(1)-y)) +# Clear local filename specific variables to avoid accidental reuse +# in another subdirectory +cflags-$(1)-y := +cflags-remove-$(1)-y := +cflags-lib-y := +cppflags-$(1)-y := +cppflags-remove-$(1)-y := +cppflags-lib-y := +aflags-$(1)-y := +aflags-remove-$(1)-y := +incdirs-$(1)-y := +fname := +oname := +endef #process-subdir-srcs-y + +define process-subdir-gensrcs-helper +# $1 gensrc-y element +# $2 full path and name of generated source file +# $3 full path and name of object file compiled from source file +# $4 full path to out directory + +gen-srcs += $2 +oname := $3 + +FORCE-GENSRC: $2 + +$$(addprefix $4,$$(produce-additional-$1)): $2 + +subdir-$2 := $$(sub-dir) +recipe-$2 := $$(recipe-$1) +$2: $$(depends-$1) + @$(cmd-echo-silent) ' GEN $2' + $(q)mkdir -p $4 + $(q)$$(recipe-$2) + +cflags-$$(oname) := $$(cflags-y) $$(cflags-$(1)-y) +cflags-remove-$$(oname) := $$(cflags-remove-y) \ + $$(cflags-remove-$(1)-y) +cppflags-$$(oname) := $$(cppflags-y) $$(cppflags-$(1)-y) +cppflags-remove-$$(oname) := $$(cppflags-remove-y) \ + $$(cppflags-remove-$(1)-y) +aflags-$$(oname) := $$(aflags-y) $$(aflags-$(1)-y) +aflags-remove-$$(oname) := $$(aflags-remove-y) \ + $$(aflags-remove-$(1)-y) +incdirs-$$(oname) := $$(thissubdir-incdirs) $$(addprefix $(sub-dir)/,$$(incdirs-$(1)-y)) +# Clear local filename specific variables to avoid accidental reuse +# in another subdirectory +cflags-$(1)-y := +cflags-remove-$(1)-y := +cflags-lib-y := +cppflags-$(1)-y := +cppflags-remove-$(1)-y := +cppflags-lib-y := +aflags-$(1)-y := +aflags-remove-$(1)-y := +incdirs-$(1)-y := +fname := +oname := + +endef #process-subdir-gensrcs-helper + +define process-subdir-gensrcs-y +$$(eval $$(call process-subdir-gensrcs-helper,$1,$(sub-dir-out)/$$(produce-$1),$(sub-dir-out)/$(basename $(produce-$1)).o,$(sub-dir-out))) +endef #process-subdir-gensrcs-y + +define process-subdir +sub-dir := $1 +ifeq ($1,.) +sub-dir-out := $(out-dir)/$(base-prefix) +else +sub-dir-out := $(out-dir)/$(base-prefix)$1 +endif + +include $1/sub.mk +sub-subdirs := $$(addprefix $1/,$$(subdirs-y)) +incdirs$(sm) := $(incdirs$(sm)) $$(addprefix $1/,$$(global-incdirs-y)) +thissubdir-incdirs := $(out-dir)/$(base-prefix)$1 $$(addprefix $1/,$$(incdirs-y)) +ifneq ($$(libname),) +incdirs-lib$$(libname)-$$(sm) := $$(incdirs-lib$$(libname)-$$(sm)) $$(addprefix $1/,$$(incdirs-lib-y)) +cflags-lib$$(libname)-$$(sm) := $$(cflags-lib$$(libname)-$$(sm)) $$(cflags-lib-y) +cppflags-lib$$(libname)-$$(sm) := $$(cppflags-lib$$(libname)-$$(sm)) $$(cppflags-lib-y) +endif + +# Process files in current directory +$$(foreach g, $$(gensrcs-y), $$(eval $$(call process-subdir-gensrcs-y,$$(g)))) +$$(foreach s, $$(srcs-y), $$(eval $$(call process-subdir-srcs-y,$$(s)))) +# Clear flags used when processing current directory +srcs-y := +cflags-y := +cflags-lib-y := +cppflags-y := +cppflags-lib-y := +aflags-y := +cflags-remove-y := +subdirs-y := +global-incdirs-y := +incdirs-lib-y := +incdirs-y := +gensrcs-y := +this-out-dir := + +# Process subdirectories in current directory +$$(foreach sd, $$(sub-subdirs), $$(eval $$(call process-subdir,$$(sd)))) +endef #process-subdir + +# Top subdirectories +$(foreach sd, $(subdirs), $(eval $(call process-subdir,$(sd)))) |