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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
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if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 109 insertions, 0 deletions

diff --git a/gcc/ada/s-tporft.adb b/gcc/ada/s-tporft.adb
new file mode 100644
index 000000000..0158ca284
--- /dev/null
+++ b/gcc/ada/s-tporft.adb
@@ -0,0 +1,109 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
+--                                                                          --
+--         SYSTEM.TASK_PRIMITIVES.OPERATIONS.REGISTER_FOREIGN_THREAD        --
+--                                                                          --
+--                                B o d y                                   --
+--                                                                          --
+--          Copyright (C) 2002-2010, Free Software Foundation, Inc.         --
+--                                                                          --
+-- GNARL is free software; you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University.       --
+-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with System.Task_Info;
+--  Use for Unspecified_Task_Info
+
+with System.Soft_Links;
+--  used to initialize TSD for a C thread, in function Self
+
+with System.Multiprocessors;
+
+separate (System.Task_Primitives.Operations)
+function Register_Foreign_Thread (Thread : Thread_Id) return Task_Id is
+   Local_ATCB : aliased Ada_Task_Control_Block (0);
+   Self_Id    : Task_Id;
+   Succeeded  : Boolean;
+
+begin
+   --  This section is tricky. We must not call anything that might require
+   --  an ATCB, until the new ATCB is in place. In order to get an ATCB
+   --  immediately, we fake one, so that it is then possible to e.g allocate
+   --  memory (which might require accessing self).
+
+   --  Record this as the Task_Id for the thread
+
+   Local_ATCB.Common.LL.Thread := Thread;
+   Local_ATCB.Common.Current_Priority := System.Priority'First;
+   Specific.Set (Local_ATCB'Unchecked_Access);
+
+   --  It is now safe to use an allocator
+
+   Self_Id := new Ada_Task_Control_Block (0);
+
+   --  Finish initialization
+
+   Lock_RTS;
+   System.Tasking.Initialize_ATCB
+     (Self_Id, null, Null_Address, Null_Task,
+      Foreign_Task_Elaborated'Access,
+      System.Priority'First, System.Multiprocessors.Not_A_Specific_CPU,
+      Task_Info.Unspecified_Task_Info, 0, Self_Id, Succeeded);
+   Unlock_RTS;
+   pragma Assert (Succeeded);
+
+   Self_Id.Master_of_Task := 0;
+   Self_Id.Master_Within := Self_Id.Master_of_Task + 1;
+
+   for L in Self_Id.Entry_Calls'Range loop
+      Self_Id.Entry_Calls (L).Self := Self_Id;
+      Self_Id.Entry_Calls (L).Level := L;
+   end loop;
+
+   Self_Id.Common.State := Runnable;
+   Self_Id.Awake_Count := 1;
+
+   Self_Id.Common.Task_Image (1 .. 14) := "foreign thread";
+   Self_Id.Common.Task_Image_Len := 14;
+
+   --  Since this is not an ordinary Ada task, we will start out undeferred
+
+   Self_Id.Deferral_Level := 0;
+
+   --  We do not provide an alternate stack for foreign threads
+
+   Self_Id.Common.Task_Alternate_Stack := Null_Address;
+
+   System.Soft_Links.Create_TSD (Self_Id.Common.Compiler_Data);
+
+   --  ???
+   --  The following call is commented out to avoid dependence on the
+   --  System.Tasking.Initialization package. It seems that if we want
+   --  Ada.Task_Attributes to work correctly for C threads we will need to
+   --  raise the visibility of this soft link to System.Soft_Links. We are
+   --  putting that off until this new functionality is otherwise stable.
+
+   --  System.Tasking.Initialization.Initialize_Attributes_Link.all (T);
+
+   Enter_Task (Self_Id);
+
+   return Self_Id;
+end Register_Foreign_Thread;