77 lines
2.4 KiB
Makefile
77 lines
2.4 KiB
Makefile
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cur_makefile := $(lastword $(MAKEFILE_LIST))
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$(cur_makefile): ;
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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 += -Wmissing-include-dirs
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warning-1 += -Wunused-but-set-variable
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warning-1 += -Wno-missing-field-initializers
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c_warning-1 := -Wmissing-prototypes -Wold-style-definition
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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 += -Wshadow
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warning-2 += -Wlogical-op
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warning-2 += -Wmissing-field-initializers
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c_warning-2 := -Wnested-externs
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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 += -Wpacked-bitfield-compat
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warning-3 += -Wvla
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c_warning-3 := -Wbad-function-cast
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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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c_warning := $(warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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c_warning += $(warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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c_warning += $(warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
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ifeq ("$(strip $(warning) $(c_warning))","")
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$(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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C_ONLY_FLAGS += $(c_warning)
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else
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ifeq ($(COMPILER),clang)
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KBUILD_CFLAGS += -Wno-initializer-overrides
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KBUILD_CFLAGS += -Wno-unused-value
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KBUILD_CFLAGS += -Wno-format
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KBUILD_CFLAGS += -Wno-unknown-warning-option
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KBUILD_CFLAGS += -Wno-sign-compare)
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KBUILD_CFLAGS += -Wno-format-zero-length
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KBUILD_CFLAGS += -Wno-uninitialized
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endif
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endif
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