https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85230
--- Comment #2 from Dmitry Vyukov <dvyukov at google dot com> ---
The runtime callbacks look correct to me, and the shadow they produce also
looks reasonable: 32-byte rezone before, 32 + (32 - object size) redzone after:
ffff8800247b7180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8800247b7200: 00 00 00 00 ca ca ca ca 02 cb cb cb cb cb cb cb
^
ffff8800247b7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
