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Kernel: Unbreak ASLR in the new RegionTree world
Functions that allocate and/or place a Region now take a parameter that tells it whether to randomize unspecified addresses.
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9 changed files with 33 additions and 27 deletions
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@ -15,6 +15,11 @@
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namespace Kernel::Memory {
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enum class RandomizeVirtualAddress {
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No,
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Yes,
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};
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class RegionTree {
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AK_MAKE_NONCOPYABLE(RegionTree);
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AK_MAKE_NONMOVABLE(RegionTree);
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@ -34,7 +39,7 @@ public:
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ErrorOr<NonnullOwnPtr<Region>> allocate_unbacked_anywhere(size_t size, size_t alignment = PAGE_SIZE);
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ErrorOr<void> place_anywhere(Region&, size_t size, size_t alignment = PAGE_SIZE);
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ErrorOr<void> place_anywhere(Region&, RandomizeVirtualAddress, size_t size, size_t alignment = PAGE_SIZE);
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ErrorOr<void> place_specifically(Region&, VirtualRange const&);
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ErrorOr<NonnullOwnPtr<Memory::Region>> create_identity_mapped_region(PhysicalAddress, size_t);
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