value of sbrk(0) in UNIX. In terms of dlmalloc and our proprietary
contiguous mspace class, this is the highest address returned by its
morecore method.
This routine allows creating a contiguous mspace from raw mapped memory.
In turn, this will enable preallocation of the 3 heap spaces, which will help
remembered sets and zygote/app checks given pointer values.
Carl Shapiro
Barry Hayes
The Android Open Source Project