Attempts to release RAM occupied by freed chunks back to OS. The region is expected to be locked. TODO(morehouse): Support a callback on memory relea

The cache flag is ignored on Fuchsia because a process can always get this information via its process-self handle.

FIXME: this is thread-unsafe, but should not cause problems most of the time. When the shadow is mapped only a single thread usually exists (plus mayb

We want to map a chunk of address space aligned to 'alignment'. We do it by mapping a bit more and then unmapping redundant pieces. We probably can do

This should never be called.

We need to make sure that sanitizer_zone is registered as malloc_zones[0]. If libmalloc tries to set up a different zone as malloc_zones[0], it will c

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