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Diffstat (limited to 'ChocolArm64/Memory/MemoryManagementUnix.cs')
-rw-r--r--ChocolArm64/Memory/MemoryManagementUnix.cs70
1 files changed, 0 insertions, 70 deletions
diff --git a/ChocolArm64/Memory/MemoryManagementUnix.cs b/ChocolArm64/Memory/MemoryManagementUnix.cs
deleted file mode 100644
index fe3cfb7e..00000000
--- a/ChocolArm64/Memory/MemoryManagementUnix.cs
+++ /dev/null
@@ -1,70 +0,0 @@
-using Mono.Unix.Native;
-using System;
-
-namespace ChocolArm64.Memory
-{
- static class MemoryManagementUnix
- {
- public static IntPtr Allocate(ulong size)
- {
- ulong pageSize = (ulong)Syscall.sysconf(SysconfName._SC_PAGESIZE);
-
- const MmapProts prot = MmapProts.PROT_READ | MmapProts.PROT_WRITE;
-
- const MmapFlags flags = MmapFlags.MAP_PRIVATE | MmapFlags.MAP_ANONYMOUS;
-
- IntPtr ptr = Syscall.mmap(IntPtr.Zero, size + pageSize, prot, flags, -1, 0);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- unsafe
- {
- ptr = new IntPtr(ptr.ToInt64() + (long)pageSize);
-
- *((ulong*)ptr - 1) = size;
- }
-
- return ptr;
- }
-
- public static bool Reprotect(IntPtr address, ulong size, MemoryProtection protection)
- {
- MmapProts prot = GetProtection(protection);
-
- return Syscall.mprotect(address, size, prot) == 0;
- }
-
- private static MmapProts GetProtection(MemoryProtection protection)
- {
- switch (protection)
- {
- case MemoryProtection.None: return MmapProts.PROT_NONE;
- case MemoryProtection.Read: return MmapProts.PROT_READ;
- case MemoryProtection.ReadAndWrite: return MmapProts.PROT_READ | MmapProts.PROT_WRITE;
- case MemoryProtection.ReadAndExecute: return MmapProts.PROT_READ | MmapProts.PROT_EXEC;
- case MemoryProtection.Execute: return MmapProts.PROT_EXEC;
-
- default: throw new ArgumentException($"Invalid permission \"{protection}\".");
- }
- }
-
- public static bool Free(IntPtr address)
- {
- ulong pageSize = (ulong)Syscall.sysconf(SysconfName._SC_PAGESIZE);
-
- ulong size;
-
- unsafe
- {
- size = *((ulong*)address - 1);
-
- address = new IntPtr(address.ToInt64() - (long)pageSize);
- }
-
- return Syscall.munmap(address, size + pageSize) == 0;
- }
- }
-} \ No newline at end of file