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Kernel: KUBSAN implementation of returns-nonnull-attribute
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@ -270,7 +270,7 @@ set(SOURCES
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${C_SOURCES}
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)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=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 "${CMAKE_CXX_FLAGS} -fsanitize=nonnull-attribute,returns-nonnull-attribute,bool,vla-bound,signed-integer-overflow,shift,shift-exponent,shift-base,integer-divide-by-zero,return,bounds,bounds-strict,object-size,enum,vptr")
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set(CMAKE_CXX_FLAGS "${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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@ -53,6 +53,13 @@ void __ubsan_handle_nonnull_arg(const NonnullArgData& data)
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print_location(data.location);
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}
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void __ubsan_handle_nonnull_return_v1(const NonnullReturnData&, const SourceLocation&);
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void __ubsan_handle_nonnull_return_v1(const NonnullReturnData&, const SourceLocation& location)
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{
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dbgln("KUBSAN: null pointer return from function declared to never return null");
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print_location(location);
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}
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void __ubsan_handle_vla_bound_not_positive(const VLABoundData&, void*);
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void __ubsan_handle_vla_bound_not_positive(const VLABoundData& data, void*)
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{
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@ -74,6 +74,10 @@ struct NonnullArgData {
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int argument_index;
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};
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struct NonnullReturnData {
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SourceLocation attribute_location;
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};
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struct OverflowData {
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SourceLocation location;
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const TypeDescriptor& type;
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