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UserspaceEmulator: Implement a proper VM allocator

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This patch brings Kernel::RangeAllocator to UserspaceEmulator in a
slightly simplified form.

It supports the basic three allocation types needed by virt$mmap():
allocate_anywhere, allocate_specific, and allocate_randomized.

Porting virt$mmap() and virt$munmap() to use the allocator makes
UE work correctly once again. :^)
This commit is contained in:
Andreas Kling 2021-02-06 23:08:51 +01:00
parent 9dacd7c0ec
commit 89483a9408
10 changed files with 438 additions and 36 deletions
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2
Userland/DevTools/UserspaceEmulator/MmapRegion.h
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without