+ Empty UEFI ThreadManager implementation (based on the Native NT target).

  This avoid crash when adding a uses on SysUtils in a program. 
  A critical section is used in TEncoding class functions (see sysencoding.inc)
  and require an implementation that, at least, do not crash ;-) 

git-svn-id: branches/olivier/uefi@36921 -

rtl/uefi/systhrd.inc

@@ -1,8 +1,11 @@
 {
-    Basic UEFI definitions
-
     This file is part of the Free Pascal run time library.
-    Copyright (c) 2014 by Olivier Coursière
+    Copyright (c) 2010 by Sven Barth
+    Copyright (c) 2017 by Olivier Coursière
+
+    Basic UEFI definitions    
+    Empty threading implementation for the UEFI target.    
+    Based on Native NT threading support implementation
 
     See the file COPYING.FPC, included in this distribution,
     for details about the copyright.
@@ -12,3 +15,245 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
  **********************************************************************}
+
+const
+  STATUS_NOT_IMPLEMENTED = LongInt($C0000002);
+
+{*****************************************************************************
+                             Threadvar support
+*****************************************************************************}
+
+    const
+      threadvarblocksize : dword = 0;
+
+    procedure SysInitThreadvar(var offset : dword;size : dword);
+      begin
+        offset:=threadvarblocksize;
+      {$ifdef CPUARM}
+        // Data must be allocated at 4 bytes boundary for ARM
+        size:=(size + 3) and not dword(3);
+      {$endif CPUARM}
+        inc(threadvarblocksize,size);
+      end;
+
+
+    procedure SysAllocateThreadVars;
+      begin
+      end;
+
+    procedure SysInitMultithreading;
+      begin
+      end;
+
+
+    procedure SysFiniMultithreading;
+      begin
+      end;
+
+    function SysRelocateThreadvar(offset : dword) : pointer;
+      begin
+        SysRelocateThreadvar:=Pointer(Offset);
+      end;
+
+
+    procedure SysReleaseThreadVars;
+      begin
+      end;
+
+{*****************************************************************************
+                            Thread starting
+*****************************************************************************}
+
+    function SysBeginThread(sa : Pointer;stacksize : ptruint;
+                         ThreadFunction : tthreadfunc;p : pointer;
+                         creationFlags : dword;var ThreadId : TThreadID) : TThreadID;
+      begin
+        ThreadId := 0;
+        Result := 0;
+      end;
+
+
+    procedure SysEndThread(ExitCode : DWord);
+      begin
+        DoneThread;
+      end;
+
+
+    procedure SysThreadSwitch;
+    begin
+    end;
+
+
+    function  SysSuspendThread (threadHandle : TThreadID) : dword;
+    begin
+      Result := STATUS_NOT_IMPLEMENTED;
+    end;
+
+
+    function  SysResumeThread  (threadHandle : TThreadID) : dword;
+    begin
+      Result := STATUS_NOT_IMPLEMENTED;
+    end;
+
+
+    function  SysKillThread (threadHandle : TThreadID) : dword;
+    begin
+      Result := STATUS_NOT_IMPLEMENTED;
+    end;
+
+    function  SysCloseThread (threadHandle : TThreadID) : dword;
+    begin
+      Result := STATUS_NOT_IMPLEMENTED;
+    end;
+
+    function  SysWaitForThreadTerminate (threadHandle : TThreadID; TimeoutMs : longint) : dword;
+    begin
+      Result := STATUS_NOT_IMPLEMENTED;
+    end;
+
+
+    function  SysThreadSetPriority (threadHandle : TThreadID; Prio: longint): boolean;            {-15..+15, 0=normal}
+    begin
+      Result := False;
+    end;
+
+
+    function  SysThreadGetPriority (threadHandle : TThreadID): longint;
+    begin
+      Result := 0;
+    end;
+
+    function  SysGetCurrentThreadId : TThreadID;
+    begin
+      Result := 0;
+    end;
+
+{*****************************************************************************
+                          Delphi/Win32 compatibility
+*****************************************************************************}
+
+procedure SysInitCriticalSection(var cs);
+begin
+  Pointer(cs) := GetMem(SizeOf(Pointer));
+end;
+
+
+procedure SysDoneCriticalSection(var cs);
+begin
+  FreeMem(Pointer(cs));
+end;
+
+
+procedure SysEnterCriticalSection(var cs);
+begin
+end;
+
+function SysTryEnterCriticalSection(var cs):longint;
+begin
+  Result := STATUS_NOT_IMPLEMENTED;
+end;
+
+procedure SysLeaveCriticalSection(var cs);
+begin
+end;
+
+
+function intBasicEventCreate(EventAttributes : Pointer;
+AManualReset,InitialState : Boolean;const Name : ansistring):pEventState;
+begin
+  Result := GetMem(SizeOf(Pointer));
+end;
+
+procedure intbasiceventdestroy(state:peventstate);
+begin
+  FreeMem(state);
+end;
+
+procedure intbasiceventResetEvent(state:peventstate);
+begin
+
+end;
+
+procedure intbasiceventSetEvent(state:peventstate);
+begin
+end;
+
+function intbasiceventWaitFor(Timeout : Cardinal;state:peventstate) : longint;
+begin
+  Result := STATUS_NOT_IMPLEMENTED;
+end;
+
+function intRTLEventCreate: PRTLEvent;
+begin
+  Result := GetMem(SizeOf(Pointer));
+end;
+
+procedure intRTLEventDestroy(AEvent: PRTLEvent);
+begin
+  FreeMem(AEvent);
+end;
+
+procedure intRTLEventSetEvent(AEvent: PRTLEvent);
+begin
+
+end;
+
+procedure intRTLEventResetEvent(AEvent: PRTLEvent);
+begin
+
+end;
+
+procedure intRTLEventWaitFor(AEvent: PRTLEvent);
+begin
+
+end;
+
+procedure intRTLEventWaitForTimeout(AEvent: PRTLEvent;timeout : longint);
+begin
+
+end;
+
+
+Var
+  UEFIThreadManager : TThreadManager;
+
+Procedure InitSystemThreads;
+begin
+  With UEFIThreadManager do
+    begin
+    InitManager            :=Nil;
+    DoneManager            :=Nil;
+    BeginThread            :=@SysBeginThread;
+    EndThread              :=@SysEndThread;
+    SuspendThread          :=@SysSuspendThread;
+    ResumeThread           :=@SysResumeThread;
+    KillThread             :=@SysKillThread;
+    ThreadSwitch           :=@SysThreadSwitch;
+    CloseThread		   :=@SysCloseThread;
+    WaitForThreadTerminate :=@SysWaitForThreadTerminate;
+    ThreadSetPriority      :=@SysThreadSetPriority;
+    ThreadGetPriority      :=@SysThreadGetPriority;
+    GetCurrentThreadId     :=@SysGetCurrentThreadId;
+    InitCriticalSection    :=@SysInitCriticalSection;
+    DoneCriticalSection    :=@SysDoneCriticalSection;
+    EnterCriticalSection   :=@SysEnterCriticalSection;
+    TryEnterCriticalSection:=@SysTryEnterCriticalSection;
+    LeaveCriticalSection   :=@SysLeaveCriticalSection;
+    InitThreadVar          :=@SysInitThreadVar;
+    RelocateThreadVar      :=@SysRelocateThreadVar;
+    AllocateThreadVars     :=@SysAllocateThreadVars;
+    ReleaseThreadVars      :=@SysReleaseThreadVars;
+    BasicEventCreate       :=@intBasicEventCreate;
+    BasicEventDestroy      :=@intBasicEventDestroy;
+    BasicEventResetEvent   :=@intBasicEventResetEvent;
+    BasicEventSetEvent     :=@intBasicEventSetEvent;
+    BasiceventWaitFor      :=@intBasiceventWaitFor;
+    RTLEventCreate         :=@intRTLEventCreate;
+    RTLEventDestroy        :=@intRTLEventDestroy;
+    RTLEventSetEvent       :=@intRTLEventSetEvent;
+    RTLEventResetEvent     :=@intRTLEventResetEvent;
+    RTLEventWaitFor        :=@intRTLEventWaitFor;
+    RTLEventWaitForTimeout :=@intRTLEventWaitForTimeout;
+    end;
+  SetThreadManager(UEFIThreadManager);
+end;