diff options
| author | LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com> | 2019-10-31 19:09:03 +0100 |
|---|---|---|
| committer | Ac_K <Acoustik666@gmail.com> | 2019-10-31 19:09:03 +0100 |
| commit | eee639d6ba544fa5dd9352426d55e91bc54e157d (patch) | |
| tree | 1df440ca57d8c1725e84f403fbeecddb8e508a3a /ChocolArm64/Memory/MemoryManagementUnix.cs | |
| parent | 35443bac5a16ced668d84e0a22c21ca9076b3924 (diff) | |
.NET Core 3.0 is here! (#784)
* .NET Core 3.0 is here!
* Remove IMemoryManager.cs and its references.
* Add T Math/F.FusedMultiplyAdd(T, T, T). Nits.
* Nit.
* Update appveyor.yml
* Revert "Resolve Visual Studio build issues"
This reverts commit 1772128ce0fc058e6280001aace3a77a7a96897b.
* Update SvcTable.cs
Diffstat (limited to 'ChocolArm64/Memory/MemoryManagementUnix.cs')
| -rw-r--r-- | ChocolArm64/Memory/MemoryManagementUnix.cs | 70 |
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; - } - } -}
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