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Matthew Parkinson 5f7baef755 Refactor: Remove unused features and functions, and move most allocator operations to a global namespace. (#750)
* Factor out explicit Config type

Instead of using snmalloc::Alloc::Config, expose snmalloc::Config, which is then used to derive the allocator type.

* Move globalalloc to front end.

* Remove unneed template parameter from global snmalloc functions.

* Remove SNMALLOC_PASS_THROUGH

VeronaRT now has an abstraction layer which can easily replace the allocator.
Having such a complex integration still in snmalloc does not make sense.

* Take some global functions off of local alloc.

* Drop comparison overloads on atomic Capptr.

Performing a comparison on two atomic ptr is a complex operation, and should not be implicit.  The memory model order and such things needs to be considered by the caller.

* Remove function_ref and use templates

The implementation prefers to use templates over the function_ref.  This now only exists in the Pal for a currently unused feature.

* Removing function_ref reduces stl needs.

* Remove use of __is_convertible to support older g++

* Inline function that is only used once.

* Remove unused function

* Restrict ThreadAlloc usage to globalalloc

This commit introduces various inline functions on snmalloc:: that perform allocation/deallocation using the thread local allocator.

They remove all usage from a particular test.

* Move cheri checks to own file.

* Refactor is_owned checks.

* Move alloc_size and check_size to globalalloc.

* Minor simplification of dealloc path

* Fix up is_owned to take a config

* Improve usage of scoped allocator.

* Handle Config_ in globalalloc.
2025-02-22 19:53:27 +00:00
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