tree 36838b75f2bc3957beef2a33d4a2094c4af839c8
parent 19ab8b9308bac88b4207571eedfe407aee806663
author jseward <jseward@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1079233597 +0000
committer jseward <jseward@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1079233597 +0000

Modify the memory manager so it "natively" supports 8-byte alignment,
basically by messing with the block layout.

* Move freelist next ptr from before payload to after it

* Ensure payload and red zones always have sizes which are
  multiples of 8-bytes.

Seems to work OK.  Values returned from the two basic allocator
functions VG_(arena_malloc) and VG_(arena_malloc_aligned) are
vg_asserted to have suitable alignment (== 8, >= 8 && == requested
alignment) respectively.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2316 a5019735-40e9-0310-863c-91ae7b9d1cf9