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Kernel: Unbreak ASLR in the new RegionTree world

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Functions that allocate and/or place a Region now take a parameter
that tells it whether to randomize unspecified addresses.
This commit is contained in:
Andreas Kling 2022-04-03 18:46:27 +02:00
parent e89c9ed2ca
commit 858b196c59
9 changed files with 33 additions and 27 deletions
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4
Kernel/Memory/AddressSpace.h
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@ -36,8 +36,8 @@ public:
ErrorOr<void> unmap_mmap_range(VirtualAddress, size_t);
ErrorOr<Region*> allocate_region_with_vmobject(VirtualRange requested_range, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, StringView name, int prot, bool shared);
ErrorOr<Region*> allocate_region_with_vmobject(VirtualAddress requested_address, size_t requested_size, size_t requested_alignment, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, StringView name, int prot, bool shared);
ErrorOr<Region*> allocate_region(VirtualAddress requested_address, size_t requested_size, size_t requested_alignment, StringView name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
ErrorOr<Region*> allocate_region_with_vmobject(RandomizeVirtualAddress, VirtualAddress requested_address, size_t requested_size, size_t requested_alignment, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, StringView name, int prot, bool shared);
ErrorOr<Region*> allocate_region(RandomizeVirtualAddress, VirtualAddress requested_address, size_t requested_size, size_t requested_alignment, StringView name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
void deallocate_region(Region& region);
NonnullOwnPtr<Region> take_region(Region& region);