kernel: Add CC_WERROR config to turn warnings into errors
Add configuration option CONFIG_CC_WERROR to prevent warnings from creeping in. Bug: 141372918 Change-Id: Ie2d067c0177d8f13e9aaa9a78867998e390f89ee Signed-off-by: Chenglu Lin <chenglulin@google.com>
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Makefile
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Makefile
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@ -702,6 +702,10 @@ else
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KBUILD_CFLAGS += -O2
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endif
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ifdef CONFIG_CC_WERROR
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KBUILD_CFLAGS += -Werror
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endif
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# Tell gcc to never replace conditional load with a non-conditional one
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KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
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KBUILD_CFLAGS += $(call cc-option,-fno-allow-store-data-races)
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@ -2118,6 +2118,16 @@ config PANIC_ON_DATA_CORRUPTION
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recoverable data corruption scenarios to system-halting panics,
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for easier detection and debug.
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config CC_WERROR
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bool "Treat all compile warnings as errors"
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default n
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help
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Select this option to set compiler warnings as errors,
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to prevent easily-fixable problems from creeping into
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the codebase.
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If unsure, say N.
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source "samples/Kconfig"
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source "lib/Kconfig.kgdb"
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