obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 142 insertions, 0 deletions

diff --git a/gcc/ada/s-osinte-tru64.adb b/gcc/ada/s-osinte-tru64.adb
new file mode 100644
index 000000000..ad391bcb4
--- /dev/null
+++ b/gcc/ada/s-osinte-tru64.adb
@@ -0,0 +1,142 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
+--                                                                          --
+--                   S Y S T E M . O S _ I N T E R F A C E                  --
+--                                                                          --
+--                                  B o d y                                 --
+--                                                                          --
+--         Copyright (C) 1998-2009, 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.     --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is the DEC Unix version of this package
+
+--  This package encapsulates all direct interfaces to OS services
+--  that are needed by children of System.
+
+pragma Polling (Off);
+--  Turn off polling, we do not want ATC polling to take place during
+--  tasking operations. It causes infinite loops and other problems.
+
+with Interfaces.C; use Interfaces.C;
+with System.Machine_Code; use System.Machine_Code;
+
+package body System.OS_Interface is
+
+   --------------------
+   -- Get_Stack_Base --
+   --------------------
+
+   function Get_Stack_Base (thread : pthread_t) return Address is
+      pragma Unreferenced (thread);
+   begin
+      return Null_Address;
+   end Get_Stack_Base;
+
+   ------------------
+   -- pthread_init --
+   ------------------
+
+   procedure pthread_init is
+   begin
+      null;
+   end pthread_init;
+
+   ------------------
+   -- pthread_self --
+   ------------------
+
+   function pthread_self return pthread_t is
+      Self : pthread_t;
+   begin
+      Asm ("call_pal 0x9e" & ASCII.LF & ASCII.HT &
+           "bis $31, $0, %0",
+           Outputs  => pthread_t'Asm_Output ("=r", Self),
+           Clobber  => "$0",
+           Volatile => True);
+      return Self;
+   end pthread_self;
+
+   ----------------------
+   -- Hide_Yellow_Zone --
+   ----------------------
+
+   procedure Hide_Unhide_Yellow_Zone (Hide : Boolean) is
+      type Teb_Ptr is access all pthread_teb_t;
+      Teb : Teb_Ptr;
+      Res : Interfaces.C.int;
+      pragma Unreferenced (Res);
+
+   begin
+      --  Get the Thread Environment Block address
+
+      Asm ("call_pal 0x9e" & ASCII.LF & ASCII.HT &
+           "bis $31, $0, %0",
+           Outputs  => Teb_Ptr'Asm_Output ("=r", Teb),
+           Clobber  => "$0",
+           Volatile => True);
+
+      --  Stick a guard page right above the Yellow Zone if it exists
+
+      if Teb.all.stack_yellow /= Teb.all.stack_guard then
+         Res :=
+           mprotect
+             (Teb.all.stack_yellow, Get_Page_Size,
+              prot => (if Hide then PROT_ON else PROT_OFF));
+      end if;
+   end Hide_Unhide_Yellow_Zone;
+
+   -----------------
+   -- To_Duration --
+   -----------------
+
+   function To_Duration (TS : timespec) return Duration is
+   begin
+      return Duration (TS.tv_sec) + Duration (TS.tv_nsec) / 10#1#E9;
+   end To_Duration;
+
+   -----------------
+   -- To_Timespec --
+   -----------------
+
+   function To_Timespec (D : Duration) return timespec is
+      S : time_t;
+      F : Duration;
+
+   begin
+      S := time_t (Long_Long_Integer (D));
+      F := D - Duration (S);
+
+      --  If F has negative value due to a round-up, adjust for positive F
+      --  value.
+
+      if F < 0.0 then
+         S := S - 1;
+         F := F + 1.0;
+      end if;
+
+      return timespec'(tv_sec => S,
+                       tv_nsec => long (Long_Long_Integer (F * 10#1#E9)));
+   end To_Timespec;
+
+end System.OS_Interface;