diff options
Diffstat (limited to 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 57 |
1 files changed, 30 insertions, 27 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 64daf37e874b..10950559b223 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -44,19 +44,22 @@ else obj-y := $(filter-out %/, $(obj-y)) endif -# Expand $(foo-objs) $(foo-y) by calling $(call suffix-search,foo.o,-objs -y) -suffix-search = $(strip $(foreach s, $2, $($(1:.o=$s)))) +# Expand $(foo-objs) $(foo-y) etc. by replacing their individuals +suffix-search = $(strip $(foreach s, $3, $($(1:%$(strip $2)=%$s)))) +# List composite targets that are constructed by combining other targets +multi-search = $(sort $(foreach m, $1, $(if $(call suffix-search, $m, $2, $3 -), $m))) +# List primitive targets that are compiled from source files +real-search = $(foreach m, $1, $(if $(call suffix-search, $m, $2, $3 -), $(call suffix-search, $m, $2, $3), $m)) + # If $(foo-objs), $(foo-y), $(foo-m), or $(foo-) exists, foo.o is a composite object -multi-search = $(sort $(foreach m, $1, $(if $(call suffix-search, $m, $2 -), $m))) -multi-obj-y := $(call multi-search,$(obj-y),-objs -y) -multi-obj-m := $(call multi-search,$(obj-m),-objs -y -m) +multi-obj-y := $(call multi-search, $(obj-y), .o, -objs -y) +multi-obj-m := $(call multi-search, $(obj-m), .o, -objs -y -m) multi-obj-ym := $(multi-obj-y) $(multi-obj-m) # Replace multi-part objects by their individual parts, # including built-in.a from subdirectories -real-search = $(foreach m, $1, $(if $(call suffix-search, $m, $2 -), $(call suffix-search, $m, $2), $m)) -real-obj-y := $(call real-search, $(obj-y),-objs -y) -real-obj-m := $(call real-search, $(obj-m),-objs -y -m) +real-obj-y := $(call real-search, $(obj-y), .o, -objs -y) +real-obj-m := $(call real-search, $(obj-m), .o, -objs -y -m) always-y += $(always-m) @@ -75,24 +78,18 @@ always-y += $(userprogs-always-y) $(userprogs-always-m) # If CONFIG_OF_ALL_DTBS is enabled, all DT blobs are built dtb-$(CONFIG_OF_ALL_DTBS) += $(dtb-) -# List all dtbs to be generated by fdtoverlay -overlay-y := $(foreach m,$(dtb-y), $(if $(strip $($(m:.dtb=-dtbs))),$(m),)) - -# Generate symbols for the base files so overlays can be applied to them. -$(foreach m,$(overlay-y), $(eval DTC_FLAGS_$(basename $(firstword $($(m:.dtb=-dtbs)))) += -@)) - -# Add base dtb and overlay dtbo -dtb-y += $(foreach m,$(overlay-y), $($(m:.dtb=-dtbs))) +# Composite DTB (i.e. DTB constructed by overlay) +multi-dtb-y := $(call multi-search, $(dtb-y), .dtb, -dtbs) +# Primitive DTB compiled from *.dts +real-dtb-y := $(call real-search, $(dtb-y), .dtb, -dtbs) +# Base DTB that overlay is applied onto (each first word of $(*-dtbs) expansion) +base-dtb-y := $(foreach m, $(multi-dtb-y), $(firstword $(call suffix-search, $m, .dtb, -dtbs))) always-y += $(dtb-y) ifneq ($(CHECK_DTBS),) -# Don't run schema checks for dtbs created by fdtoverlay as they don't -# have corresponding dts files. -dt-yaml-y := $(filter-out $(overlay-y),$(dtb-y)) - -always-y += $(patsubst %.dtb,%.dt.yaml, $(dt-yaml-y)) -always-y += $(patsubst %.dtbo,%.dt.yaml, $(dt-yaml-y)) +always-y += $(patsubst %.dtb,%.dt.yaml, $(real-dtb-y)) +always-y += $(patsubst %.dtbo,%.dt.yaml, $(real-dtb-y)) endif # Add subdir path @@ -105,12 +102,14 @@ lib-y := $(addprefix $(obj)/,$(lib-y)) real-obj-y := $(addprefix $(obj)/,$(real-obj-y)) real-obj-m := $(addprefix $(obj)/,$(real-obj-m)) multi-obj-m := $(addprefix $(obj)/, $(multi-obj-m)) +multi-dtb-y := $(addprefix $(obj)/, $(multi-dtb-y)) +real-dtb-y := $(addprefix $(obj)/, $(real-dtb-y)) subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) # Finds the multi-part object the current object will be linked into. # If the object belongs to two or more multi-part objects, list them all. modname-multi = $(sort $(foreach m,$(multi-obj-ym),\ - $(if $(filter $*.o, $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$(m:.o=)))) + $(if $(filter $*.o, $(call suffix-search, $m, .o, -objs -y -m)),$(m:.o=)))) __modname = $(if $(modname-multi),$(modname-multi),$(basetarget)) @@ -252,6 +251,9 @@ quiet_cmd_copy = COPY $@ # Shipped files # =========================================================================== +# 'cp' preserves permissions. If you use it to copy a file in read-only srctree, +# the copy would be read-only as well, leading to an error when executing the +# rule next time. Use 'cat' instead in order to generate a writable file. quiet_cmd_shipped = SHIPPED $@ cmd_shipped = cat $< > $@ @@ -319,6 +321,9 @@ endif DTC_FLAGS += $(DTC_FLAGS_$(basetarget)) +# Set -@ if the target is a base DTB that overlay is applied onto +DTC_FLAGS += $(if $(filter $(patsubst $(obj)/%,%,$@), $(base-dtb-y)), -@) + # Generate an assembly file to wrap the output of the device tree compiler quiet_cmd_dt_S_dtb= DTB $@ cmd_dt_S_dtb= \ @@ -350,14 +355,12 @@ $(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE $(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE $(call if_changed_dep,dtc) -overlay-y := $(addprefix $(obj)/, $(overlay-y)) - quiet_cmd_fdtoverlay = DTOVL $@ cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs) -$(overlay-y): FORCE +$(multi-dtb-y): FORCE $(call if_changed,fdtoverlay) -$(call multi_depend, $(overlay-y), .dtb, -dtbs) +$(call multi_depend, $(multi-dtb-y), .dtb, -dtbs) DT_CHECKER ?= dt-validate DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),,-m) |