Andreas Kling b6d4eea7ac LibJS: Never give back virtual memory once it belongs to a cell type ... Instead of returning HeapBlock memory to the kernel (or a non-type specific shared cache), we now keep a BlockAllocator per CellAllocator and implement "deallocation" by basically informing the kernel that we don't need the physical memory right now. This is done with MADV_FREE or MADV_DONTNEED if available, but for other platforms (including SerenityOS) we munmap and then re-mmap the memory to achieve the same effect. It's definitely clunky, so I've added a FIXME about implementing the madvise options on SerenityOS too. The important outcome of this change is that GC types that use a type-specific allocator become immune to use-after-free type confusion attacks, since their virtual addresses will only ever be re-used for the same exact type again and again. Fixes #22274		2023-12-31 15:35:56 +01:00
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CMakeLists.txt	Base: Add icons for Assistant	2023-04-07 11:44:23 +01:00
main.cpp	LibJS: Never give back virtual memory once it belongs to a cell type	2023-12-31 15:35:56 +01:00
Providers.cpp	Everywhere: Rename {Deprecated => Byte}String	2023-12-17 18:25:10 +03:30
Providers.h	Everywhere: Rename {Deprecated => Byte}String	2023-12-17 18:25:10 +03:30