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|
DTC ?= dtc
CPP ?= cpp
# Disable noisy checks by default
ifeq ($(findstring 1,$(DTC_VERBOSE)),)
DTC_FLAGS += -Wno-unit_address_vs_reg \
-Wno-unit_address_format \
-Wno-avoid_unnecessary_addr_size \
-Wno-alias_paths \
-Wno-graph_child_address \
-Wno-simple_bus_reg \
-Wno-unique_unit_address \
-Wno-pci_device_reg
endif
ifneq ($(findstring 2,$(DTC_VERBOSE)),)
DTC_FLAGS += -Wnode_name_chars_strict \
-Wproperty_name_chars_strict
endif
MAKEFLAGS += -rR --no-print-directory
ALL_ARCHES := $(patsubst src/%,%,$(wildcard src/*))
PHONY += all
all: $(foreach i,$(ALL_ARCHES),all_$(i))
PHONY += clean
clean: $(foreach i,$(ALL_ARCHES),clean_$(i))
# Do not:
# o use make's built-in rules and variables
# (this increases performance and avoids hard-to-debug behaviour);
# o print "Entering directory ...";
MAKEFLAGS += -rR --no-print-directory
# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands
ifeq ("$(origin V)", "command line")
KBUILD_VERBOSE = $(V)
endif
ifndef KBUILD_VERBOSE
KBUILD_VERBOSE = 0
endif
# Beautify output
# ---------------------------------------------------------------------------
#
# Normally, we echo the whole command before executing it. By making
# that echo $($(quiet)$(cmd)), we now have the possibility to set
# $(quiet) to choose other forms of output instead, e.g.
#
# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
#
# If $(quiet) is empty, the whole command will be printed.
# If it is set to "quiet_", only the short version will be printed.
# If it is set to "silent_", nothing will be printed at all, since
# the variable $(silent_cmd_cc_o_c) doesn't exist.
#
# A simple variant is to prefix commands with $(Q) - that's useful
# for commands that shall be hidden in non-verbose mode.
#
# $(Q)ln $@ :<
#
# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
# If KBUILD_VERBOSE equals 1 then the above command is displayed.
ifeq ($(KBUILD_VERBOSE),1)
quiet =
Q =
else
quiet=quiet_
Q = @
endif
# If the user is running make -s (silent mode), suppress echoing of
# commands
ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
quiet=silent_
endif
else # make-3.8x
ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
quiet=silent_
endif
endif
export quiet Q KBUILD_VERBOSE
all_%:
$(Q)$(MAKE) ARCH=$* all_arch
clean_%:
$(Q)$(MAKE) ARCH=$* clean_arch
ifeq ($(ARCH),)
ALL_DTS := $(shell find src/* -name \*.dts)
ALL_DTB := $(patsubst %.dts,%.dtb,$(ALL_DTS))
$(ALL_DTB): ARCH=$(word 2,$(subst /, ,$@))
$(ALL_DTB): FORCE
$(Q)$(MAKE) ARCH=$(ARCH) $@
else
ARCH_DTS := $(shell find src/$(ARCH) -name \*.dts)
ARCH_DTB := $(patsubst %.dts,%.dtb,$(ARCH_DTS))
src := src/$(ARCH)
obj := src/$(ARCH)
include scripts/Kbuild.include
cmd_files := $(wildcard $(foreach f,$(ARCH_DTB),$(dir $(f)).$(notdir $(f)).cmd))
ifneq ($(cmd_files),)
include $(cmd_files)
endif
quiet_cmd_clean = CLEAN $(obj)
cmd_clean = rm -f $(__clean-files)
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
-Iinclude -I$(src) -Isrc -Itestcase-data \
-undef -D__DTS__
quiet_cmd_dtc = DTC $@
cmd_dtc = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
$(DTC) -O dtb -o $@ -b 0 \
-i $(src) $(DTC_FLAGS) \
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
$(obj)/%.dtb: $(src)/%.dts FORCE
$(call if_changed_dep,dtc)
PHONY += all_arch
all_arch: $(ARCH_DTB)
@:
RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
-o -name .pc -o -name .hg -o -name .git \) -prune -o
PHONY += clean_arch
clean_arch: __clean-files = $(ARCH_DTB)
clean_arch: FORCE
$(call cmd,clean)
@find . $(RCS_FIND_IGNORE) \
\( -name '.*.cmd' \
-o -name '.*.d' \
-o -name '.*.tmp' \
\) -type f -print | xargs rm -f
endif
help:
@echo "Targets:"
@echo " all: Build all device tree binaries for all architectures"
@echo " clean: Clean all generated files"
@echo ""
@echo " all_<ARCH>: Build all device tree binaries for <ARCH>"
@echo " clean_<ARCH>: Clean all generated files for <ARCH>"
@echo ""
@echo " src/<ARCH>/<DTS>.dtb Build a single device tree binary"
@echo ""
@echo "Architectures: $(ALL_ARCHES)"
PHONY += FORCE
FORCE:
.PHONY: $(PHONY)
|
