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FROMLIST: kbuild: Add dtc flag test

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Host dtc may not support the same flags as kernel's copy of dtc. Test
if dtc supports each flag when the dtc comes from host.

Bug: 162811113
Link: https://lore.kernel.org/linux-devicetree/1596650328-14869-1-git-send-email-eberman@codeaurora.org/
Change-Id: Iab4e95c7100817c8b4ad40dcaafa6e6c29a85163
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
This commit is contained in:
Elliot Berman
2020-08-04 10:51:56 -07:00
committed by Steve Muckle
parent 3f4938108a
commit 47b5470fd1
1 changed files with 22 additions and 12 deletions
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34
scripts/Makefile.lib
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@@ -274,25 +274,35 @@ quiet_cmd_gzip = GZIP $@
# DTC # DTC
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
ifeq ("$(origin DTC)", "command line")
PHONY += $(DTC)
dtc-option = $(call try-run, $(DTC) $1 -v,$1)
else
# Just add the flag. DTC is compiled later as a prerequisite, so there's no dtc
# to test the flag against. This is okay because we're not testing flags which
# aren't supported by in-kernel dtc to begin with.
dtc-option = $1
endif
DTC ?= $(objtree)/scripts/dtc/dtc DTC ?= $(objtree)/scripts/dtc/dtc
DTC_FLAGS += -Wno-interrupt_provider DTC_FLAGS += $(call dtc-option,-Wno-interrupt_provider)
# Disable noisy checks by default # Disable noisy checks by default
ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),) ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
DTC_FLAGS += -Wno-unit_address_vs_reg \ DTC_FLAGS += $(call dtc-option,-Wno-unit_address_vs_reg) \
-Wno-unit_address_format \ $(call dtc-option,-Wno-unit_address_format) \
-Wno-avoid_unnecessary_addr_size \ $(call dtc-option,-Wno-avoid_unnecessary_addr_size) \
-Wno-alias_paths \ $(call dtc-option,-Wno-alias_paths) \
-Wno-graph_child_address \ $(call dtc-option,-Wno-graph_child_address) \
-Wno-simple_bus_reg \ $(call dtc-option,-Wno-simple_bus_reg) \
-Wno-unique_unit_address \ $(call dtc-option,-Wno-unique_unit_address) \
-Wno-pci_device_reg $(call dtc-option,-Wno-pci_device_reg)
endif endif
ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),) ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),)
DTC_FLAGS += -Wnode_name_chars_strict \ DTC_FLAGS += $(call dtc-option,-Wnode_name_chars_strict) \
-Wproperty_name_chars_strict \ $(call dtc-option,-Wproperty_name_chars_strict) \
-Winterrupt_provider $(call dtc-option,-Winterrupt_provider)
endif endif
DTC_FLAGS += $(DTC_FLAGS_$(basetarget)) DTC_FLAGS += $(DTC_FLAGS_$(basetarget))