K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2016-07-25T14:16:28.772088Z
K 7
svn:log
V 588
MFC r303157: libcxxrt: add padding in __cxa_allocate_* to fix alignment

The addition of the referenceCount to __cxa_allocate_exception put the
unwindHeader at offset 0x58 in __cxa_exception, but it requires 16-byte
alignment. In order to avoid changing the current __cxa_exception ABI
(and thus breaking its consumers), add explicit padding in the
allocation routines (and account for it when freeing).

This is intended as a lower-risk change for FreeBSD 11. A "more correct"
fix should be prepared for upstream and -CURRENT.

Approved by:	re (gjb)
Sponsored by:	The FreeBSD Foundation

END