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KUBSAN: Add nearly all missing -fsanitize handlers (#5254)

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Hendiadyoin1 2021-02-11 20:58:01 +01:00 • committed by GitHub
parent c98ad27803
commit 4d5496b2b2
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3 changed files with 167 additions and 22 deletions
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31
Kernel/CMakeLists.txt
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@ -269,8 +269,37 @@ set(SOURCES
${CRYPTO_SOURCES}
${C_SOURCES}
)
set(KERNEL_FSANITIZE_FLAGS
"shift"
"shift-exponent"
"shift-base"
"integer-divide-by-zero"
"unreachable"
"vla-bound"
"return"
"signed-integer-overflow"
"bounds"
"bounds-strict"
"object-size"
"float-divide-by-zero"
"float-cast-overflow"
"nonnull-attribute"
"returns-nonnull-attribute"
"bool"
"enum"
"vptr"
"builtin"
# following flags will cause triple faults:
# "alignment"
# "null"
# "pointer-overflow"
)
foreach(flag IN LISTS KERNEL_FSANITIZE_FLAGS)
message("\tkernel fsanitize flag:${flag}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=${flag}")
endforeach()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=nonnull-attribute,returns-nonnull-attribute,bool,vla-bound,signed-integer-overflow,shift,shift-exponent,shift-base,integer-divide-by-zero,return,bounds,bounds-strict,object-size,enum,vptr")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-warning-option -DKERNEL")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pie -fPIE -fno-rtti -ffreestanding -fbuiltin")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mno-80387 -mno-mmx -mno-sse -mno-sse2")