Comment #11 on issue 246 by [email protected]: Porting to a new target
(AArch64)
https://code.google.com/p/address-sanitizer/issues/detail?id=246
Please see http://gcc.gnu.org/PR64435
Aarch64 doesn't have always 39-bit address space, but configurably either
39, 42 or 47 bit address space.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64435#c19 contains a partial
patch for that, which lets at least the
LowMem/LowShadow/ShadowGap/HighShadow/HighMem division be runtime decided
to support all 3. Unfortunately the 39-bit address space is quite small
and it is hard to stick in the allocator64 at a fixed address, and 32-bit
allocator doesn't really work with 42-bit addres space (assertion failure).
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