c66ec88fed
git-subtree-dir: sys/contrib/device-tree git-subtree-mainline:94611a8388git-subtree-split:5ee353c36d
181 lines
4.5 KiB
Makefile
181 lines
4.5 KiB
Makefile
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DTC ?= dtc
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CPP ?= cpp
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# Disable noisy checks by default
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ifeq ($(findstring 1,$(DTC_VERBOSE)),)
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DTC_FLAGS += -Wno-unit_address_vs_reg \
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-Wno-unit_address_format \
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-Wno-avoid_unnecessary_addr_size \
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-Wno-alias_paths \
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-Wno-graph_child_address \
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-Wno-simple_bus_reg \
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-Wno-unique_unit_address \
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-Wno-pci_device_reg
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endif
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ifneq ($(findstring 2,$(DTC_VERBOSE)),)
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DTC_FLAGS += -Wnode_name_chars_strict \
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-Wproperty_name_chars_strict
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endif
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MAKEFLAGS += -rR --no-print-directory
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ALL_ARCHES := $(patsubst src/%,%,$(wildcard src/*))
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PHONY += all
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all: $(foreach i,$(ALL_ARCHES),all_$(i))
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PHONY += clean
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clean: $(foreach i,$(ALL_ARCHES),clean_$(i))
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# Do not:
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# o use make's built-in rules and variables
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# (this increases performance and avoids hard-to-debug behaviour);
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# o print "Entering directory ...";
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MAKEFLAGS += -rR --no-print-directory
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# To put more focus on warnings, be less verbose as default
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# Use 'make V=1' to see the full commands
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ifeq ("$(origin V)", "command line")
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KBUILD_VERBOSE = $(V)
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endif
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ifndef KBUILD_VERBOSE
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KBUILD_VERBOSE = 0
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endif
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# Beautify output
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# ---------------------------------------------------------------------------
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#
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# Normally, we echo the whole command before executing it. By making
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# that echo $($(quiet)$(cmd)), we now have the possibility to set
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# $(quiet) to choose other forms of output instead, e.g.
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#
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# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
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# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
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#
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# If $(quiet) is empty, the whole command will be printed.
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# If it is set to "quiet_", only the short version will be printed.
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# If it is set to "silent_", nothing will be printed at all, since
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# the variable $(silent_cmd_cc_o_c) doesn't exist.
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#
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# A simple variant is to prefix commands with $(Q) - that's useful
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# for commands that shall be hidden in non-verbose mode.
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#
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# $(Q)ln $@ :<
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#
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# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
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# If KBUILD_VERBOSE equals 1 then the above command is displayed.
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ifeq ($(KBUILD_VERBOSE),1)
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quiet =
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Q =
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else
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quiet=quiet_
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Q = @
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endif
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# If the user is running make -s (silent mode), suppress echoing of
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# commands
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ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
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ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
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quiet=silent_
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endif
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else # make-3.8x
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ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
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quiet=silent_
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endif
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endif
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export quiet Q KBUILD_VERBOSE
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all_%:
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$(Q)$(MAKE) ARCH=$* all_arch
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clean_%:
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$(Q)$(MAKE) ARCH=$* clean_arch
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ifeq ($(ARCH),)
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ALL_DTS := $(shell find src/* -name \*.dts)
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ALL_DTB := $(patsubst %.dts,%.dtb,$(ALL_DTS))
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$(ALL_DTB): ARCH=$(word 2,$(subst /, ,$@))
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$(ALL_DTB): FORCE
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$(Q)$(MAKE) ARCH=$(ARCH) $@
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else
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ARCH_DTS := $(shell find src/$(ARCH) -name \*.dts)
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ARCH_DTB := $(patsubst %.dts,%.dtb,$(ARCH_DTS))
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src := src/$(ARCH)
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obj := src/$(ARCH)
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include scripts/Kbuild.include
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cmd_files := $(wildcard $(foreach f,$(ARCH_DTB),$(dir $(f)).$(notdir $(f)).cmd))
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ifneq ($(cmd_files),)
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include $(cmd_files)
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endif
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quiet_cmd_clean = CLEAN $(obj)
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cmd_clean = rm -f $(__clean-files)
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dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
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dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
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-Iinclude -I$(src) -Isrc -Itestcase-data \
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-undef -D__DTS__
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quiet_cmd_dtc = DTC $@
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cmd_dtc = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
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$(DTC) -O dtb -o $@ -b 0 \
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-i $(src) $(DTC_FLAGS) \
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-d $(depfile).dtc.tmp $(dtc-tmp) ; \
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cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
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$(obj)/%.dtb: $(src)/%.dts FORCE
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$(call if_changed_dep,dtc)
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PHONY += all_arch
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all_arch: $(ARCH_DTB)
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@:
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RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
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-o -name .pc -o -name .hg -o -name .git \) -prune -o
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PHONY += clean_arch
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clean_arch: __clean-files = $(ARCH_DTB)
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clean_arch: FORCE
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$(call cmd,clean)
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@find . $(RCS_FIND_IGNORE) \
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\( -name '.*.cmd' \
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-o -name '.*.d' \
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-o -name '.*.tmp' \
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\) -type f -print | xargs rm -f
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endif
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help:
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@echo "Targets:"
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@echo " all: Build all device tree binaries for all architectures"
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@echo " clean: Clean all generated files"
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@echo ""
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@echo " all_<ARCH>: Build all device tree binaries for <ARCH>"
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@echo " clean_<ARCH>: Clean all generated files for <ARCH>"
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@echo ""
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@echo " src/<ARCH>/<DTS>.dtb Build a single device tree binary"
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@echo ""
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@echo "Architectures: $(ALL_ARCHES)"
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PHONY += FORCE
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FORCE:
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.PHONY: $(PHONY)
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