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When using the -fsanitize=address CXX_FLAG for a program compiled for aarch64 / arm64 This is happing: MemorySanitizer: CHECK failed: sanitizer_allocator_primary64.h:133 "((kSpaceBeg)) == ((address_range.Init(TotalSpaceSize, PrimaryAllocatorName, kSpaceBeg)))" (0xe00000000000, 0xfffffffffffffff4) (tid=51745) With -DSANITIZER_CAN_USE_ALLOCATOR64=0 this is not happening and potenial bugs are detected. ARM32 does not require this patch. More info about the issue in this thread: https://github.com/llvm/llvm-project/issues/65144 (From OE-Core rev: 12442b9b6df06317174066854935b1d6a4f1865d) Signed-off-by: Thomas Roos <throos@amazon.de> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Ross Burton <ross.burton@arm.com>