Kernel/LibC/DynamicLoader: Implement thread local storage

For some reason this does not work on 32 bit version, so it is disabled
on that platform. I'll have to look into it later to find the bug :)

kernel/include/kernel/ELF.h

@@ -8,8 +8,15 @@ namespace Kernel::ELF
 
 	struct LoadResult
 	{
-		bool has_interpreter;
+		struct TLS
+		{
+			vaddr_t addr;
+			size_t size;
+		};
+
+		bool open_execfd;
 		vaddr_t entry_point;
+		BAN::Optional<TLS> master_tls;
 		BAN::Vector<BAN::UniqPtr<MemoryRegion>> regions;
 	};
 

kernel/include/kernel/Process.h

@@ -6,6 +6,7 @@
 #include <BAN/StringView.h>
 #include <BAN/Vector.h>
 #include <kernel/Credentials.h>
+#include <kernel/ELF.h>
 #include <kernel/FS/Inode.h>
 #include <kernel/Lock/Mutex.h>
 #include <kernel/Memory/Heap.h>
@@ -219,6 +220,13 @@ namespace Kernel
 		Process(const Credentials&, pid_t pid, pid_t parent, pid_t sid, pid_t pgrp);
 		static Process* create_process(const Credentials&, pid_t parent, pid_t sid = 0, pid_t pgrp = 0);
 
+		struct TLSResult
+		{
+			BAN::UniqPtr<MemoryRegion> region;
+			vaddr_t addr;
+		};
+		static BAN::ErrorOr<TLSResult> initialize_thread_local_storage(PageTable&, ELF::LoadResult::TLS master_tls);
+
 		struct FileParent
 		{
 			VirtualFileSystem::File parent;