New Language: Ada

From-SVN: r45952

1 files changed, 91 insertions, 0 deletions

diff --git a/gcc/ada/7stpopsp.adb b/gcc/ada/7stpopsp.adb
new file mode 100644
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+------------------------------------------------------------------------------
+--                                                                          --
+--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
+--                                                                          --
+--    S Y S T E M . T A S K _ P R I M I T I V E S . O P E R A T I O N S .   --
+--                              S P E C I F I C                             --
+--                                                                          --
+--                                  B o d y                                 --
+--                                                                          --
+--                             $Revision: 1.1 $                             --
+--                                                                          --
+--            Copyright (C) 1991-1998, Florida State University             --
+--                                                                          --
+-- 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 2,  or (at your option) any later ver- --
+-- sion. GNARL 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.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNARL; see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- As a special exception,  if other files  instantiate  generics from this --
+-- unit, or you link  this unit with other files  to produce an executable, --
+-- this  unit  does not  by itself cause  the resulting  executable  to  be --
+-- covered  by the  GNU  General  Public  License.  This exception does not --
+-- however invalidate  any other reasons why  the executable file  might be --
+-- covered by the  GNU Public License.                                      --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University. It is --
+-- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
+-- State University (http://www.gnat.com).                                  --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is a FSU-like version of this package.
+
+separate (System.Task_Primitives.Operations)
+package body Specific is
+
+   ------------------
+   --  Local Data  --
+   ------------------
+
+   --  The followings are logically constants, but need to be initialized
+   --  at run time.
+
+   ATCB_Key : aliased pthread_key_t;
+   --  Key used to find the Ada Task_ID associated with a thread
+
+   ----------------
+   -- Initialize --
+   ----------------
+
+   procedure Initialize (Environment_Task : Task_ID) is
+      Result : Interfaces.C.int;
+   begin
+      Result := pthread_key_create (ATCB_Key'Access, null);
+      pragma Assert (Result = 0);
+      Result := pthread_setspecific (ATCB_Key, To_Address (Environment_Task));
+      pragma Assert (Result = 0);
+   end Initialize;
+
+   ---------
+   -- Set --
+   ---------
+
+   procedure Set (Self_Id : Task_ID) is
+      Result  : Interfaces.C.int;
+
+   begin
+      Result := pthread_setspecific (ATCB_Key, To_Address (Self_Id));
+      pragma Assert (Result = 0);
+   end Set;
+
+   ----------
+   -- Self --
+   ----------
+
+   function Self return Task_ID is
+      Result : System.Address;
+
+   begin
+      Result := pthread_getspecific (ATCB_Key);
+      pragma Assert (Result /= System.Null_Address);
+      return To_Task_ID (Result);
+   end Self;
+
+end Specific;