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Various fixes for OE (#418)

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* Add default for getting chunk allocator state

Makes the API same between the two configurations.

* Reduce address space usage for Open Enclave

* Fix OE Pal concept

* Add support for Pal not to provide time.

The lazy return of pages to the OS uses a simple time
based heuristic.  This enables a PAL to not support time,
and return the memory to a central pool immediately.

* Update src/backend/backend.h

Co-authored-by: Amaury Chamayou <amaury@xargs.fr>

Co-authored-by: Amaury Chamayou <amaury@xargs.fr>
This commit is contained in:
Matthew Parkinson
2021-11-17 14:11:46 +00:00
committed by GitHub
parent 91919f6014
commit dc542cdc9d
10 changed files with 128 additions and 57 deletions
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2
src/pal/pal_posix.h
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@@ -125,7 +125,7 @@ namespace snmalloc
* POSIX systems are assumed to support lazy commit. The build system checks
* getentropy is available, only then this PAL supports Entropy.
*/
static constexpr uint64_t pal_features = LazyCommit
static constexpr uint64_t pal_features = LazyCommit | Time
#if defined(SNMALLOC_PLATFORM_HAS_GETENTROPY)
| Entropy
#endif