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78 lines
2.5 KiB
78 lines
2.5 KiB
# 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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