https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102144
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This was fixed with the merge from upstream in April, r14-263-gd53b3d94aaf2 .
Specifically:
@@ -87,19 +85,26 @@ void *MmapAlignedOrDieOnFatalError(uptr size, uptr
alignment,
CHECK(IsPowerOfTwo(size));
CHECK(IsPowerOfTwo(alignment));
uptr map_size = size + alignment;
+ // mmap maps entire pages and rounds up map_size needs to be a an integral
+ // number of pages.
+ // We need to be aware of this size for calculating end and for unmapping
+ // fragments before and after the alignment region.
+ map_size = RoundUpTo(map_size, GetPageSizeCached());
https://github.com/llvm/llvm-project/commit/1293e93ee3da0d53665975499a909a45c5b90423
was the upstream commit. Funny how it was recorded for Mac OS due to 16k page
size rather than my report which was filed before hand.
