mirror of https://gitee.com/openkylin/linux.git
20 lines
706 B
Makefile
20 lines
706 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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ifdef CONFIG_KCSAN
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# GCC and Clang accept backend options differently. Do not wrap in cc-option,
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# because Clang accepts "--param" even if it is unused.
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ifdef CONFIG_CC_IS_CLANG
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cc-param = -mllvm -$(1)
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else
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cc-param = --param -$(1)
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endif
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# Keep most options here optional, to allow enabling more compilers if absence
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# of some options does not break KCSAN nor causes false positive reports.
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CFLAGS_KCSAN := -fsanitize=thread \
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$(call cc-option,$(call cc-param,tsan-instrument-func-entry-exit=0) -fno-optimize-sibling-calls) \
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$(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1)) \
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$(call cc-param,tsan-distinguish-volatile=1)
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endif # CONFIG_KCSAN
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