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KUBSAN: Add nearly all missing -fsanitize handlers (#5254)
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c98ad27803
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3 changed files with 167 additions and 22 deletions
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@ -269,8 +269,37 @@ set(SOURCES
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${CRYPTO_SOURCES}
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${C_SOURCES}
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)
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set(KERNEL_FSANITIZE_FLAGS
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"shift"
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"shift-exponent"
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"shift-base"
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"integer-divide-by-zero"
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"unreachable"
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"vla-bound"
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"return"
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"signed-integer-overflow"
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"bounds"
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"bounds-strict"
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"object-size"
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"float-divide-by-zero"
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"float-cast-overflow"
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"nonnull-attribute"
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"returns-nonnull-attribute"
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"bool"
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"enum"
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"vptr"
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"builtin"
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# following flags will cause triple faults:
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# "alignment"
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# "null"
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# "pointer-overflow"
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)
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foreach(flag IN LISTS KERNEL_FSANITIZE_FLAGS)
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message("\tkernel fsanitize flag:${flag}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=${flag}")
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endforeach()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=nonnull-attribute,returns-nonnull-attribute,bool,vla-bound,signed-integer-overflow,shift,shift-exponent,shift-base,integer-divide-by-zero,return,bounds,bounds-strict,object-size,enum,vptr")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-warning-option -DKERNEL")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pie -fPIE -fno-rtti -ffreestanding -fbuiltin")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mno-80387 -mno-mmx -mno-sse -mno-sse2")
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