83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
79 lines
2.5 KiB
Makefile
79 lines
2.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# ==========================================================================
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#
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# make W=... settings
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#
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# W=1 - warnings that may be relevant and does not occur too often
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# W=2 - warnings that occur quite often but may still be relevant
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# W=3 - the more obscure warnings, can most likely be ignored
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#
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# $(call cc-option, -W...) handles gcc -W.. options which
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# are not supported by all versions of the compiler
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# ==========================================================================
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ifeq ("$(origin W)", "command line")
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export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
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endif
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ifdef KBUILD_ENABLE_EXTRA_GCC_CHECKS
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warning- := $(empty)
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warning-1 := -Wextra -Wunused -Wno-unused-parameter
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warning-1 += -Wmissing-declarations
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warning-1 += -Wmissing-format-attribute
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warning-1 += $(call cc-option, -Wmissing-prototypes)
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warning-1 += -Wold-style-definition
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warning-1 += $(call cc-option, -Wmissing-include-dirs)
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warning-1 += $(call cc-option, -Wunused-but-set-variable)
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warning-1 += $(call cc-disable-warning, missing-field-initializers)
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warning-2 := -Waggregate-return
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warning-2 += -Wcast-align
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warning-2 += -Wdisabled-optimization
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warning-2 += -Wnested-externs
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warning-2 += -Wshadow
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warning-2 += $(call cc-option, -Wlogical-op)
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warning-2 += $(call cc-option, -Wmissing-field-initializers)
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warning-3 := -Wbad-function-cast
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warning-3 += -Wcast-qual
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warning-3 += -Wconversion
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warning-3 += -Wpacked
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warning-3 += -Wpadded
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warning-3 += -Wpointer-arith
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warning-3 += -Wredundant-decls
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warning-3 += -Wswitch-default
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warning-3 += $(call cc-option, -Wpacked-bitfield-compat)
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warning-3 += $(call cc-option, -Wvla)
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warning := $(warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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warning += $(warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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warning += $(warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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ifeq ("$(strip $(warning))","")
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$(error W=$(KBUILD_ENABLE_EXTRA_GCC_CHECKS) is unknown)
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endif
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KBUILD_CFLAGS += $(warning)
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dtc-warning-2 += -Wnode_name_chars_strict
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dtc-warning-2 += -Wproperty_name_chars_strict
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dtc-warning := $(dtc-warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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dtc-warning += $(dtc-warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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dtc-warning += $(dtc-warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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DTC_FLAGS += $(dtc-warning)
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else
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# Disable noisy checks by default
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DTC_FLAGS += -Wno-unit_address_vs_reg
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DTC_FLAGS += -Wno-simple_bus_reg
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DTC_FLAGS += -Wno-unit_address_format
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DTC_FLAGS += -Wno-pci_bridge
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DTC_FLAGS += -Wno-pci_device_bus_num
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DTC_FLAGS += -Wno-pci_device_reg
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endif
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