tree 740cd1d5895cbb57bdc492543911e5538f91aee8
parent a1ee7838e14b321a97bfacb1f1cf5004198f2203
author Jason Evans <je@fb.com> 1333697709 -0700
committer Jason Evans <je@fb.com> 1334169978 -0700

Implement Valgrind support, redzones, and quarantine.

Implement Valgrind support, as well as the redzone and quarantine
features, which help Valgrind detect memory errors.  Redzones are only
implemented for small objects because the changes necessary to support
redzones around large and huge objects are complicated by in-place
reallocation, to the point that it isn't clear that the maintenance
burden is worth the incremental improvement to Valgrind support.

Merge arena_salloc() and arena_salloc_demote().

Refactor i[v]salloc() to expose the 'demote' option.