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fix ubsan final

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This commit is contained in:
Nikita Mikhaylov 2020-07-06 12:29:22 +03:00
parent 5c97106ea3
commit dac7a39256
2 changed files with 5 additions and 4 deletions
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5
contrib/FastMemcpy/FastMemcpy.h
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@ -86,7 +86,10 @@ static INLINE void memcpy_sse2_128(void *dst, const void *src) {
//---------------------------------------------------------------------
// tiny memory copy with jump table optimized
//---------------------------------------------------------------------
static INLINE void *memcpy_tiny(void *dst, const void *src, size_t size) {
/// Attribute is used to avoid an error with undefined behaviour sanitizer
/// ../contrib/FastMemcpy/FastMemcpy.h:91:56: runtime error: applying zero offset to null pointer
/// Found by 01307_orc_output_format.sh, cause - ORCBlockInputFormat and external ORC library.
__attribute__((__no_sanitize__("undefined"))) static INLINE void *memcpy_tiny(void *dst, const void *src, size_t size) {
unsigned char *dd = ((unsigned char*)dst) + size;
const unsigned char *ss = ((const unsigned char*)src) + size;

4
src/Processors/Formats/Impl/ORCBlockInputFormat.cpp
View File

@ -23,9 +23,7 @@ ORCBlockInputFormat::ORCBlockInputFormat(ReadBuffer & in_, Block header_) : IInp
{
}
/// Attribute is used to avoid an error with undefined behaviour sanitizer
/// ../contrib/FastMemcpy/FastMemcpy.h:91:56: runtime error: applying zero offset to null pointer
__attribute__((__no_sanitize__("undefined"))) Chunk ORCBlockInputFormat::generate()
Chunk ORCBlockInputFormat::generate()
{
Chunk res;
const Block & header = getPort().getHeader();