re PR ada/37993 (missing Ada multilib support for darwin)

2008-11-15  Laurent Guerby  <laurent@guerby.net>

	PR ada/37993
	* gcc-interface/Makefile.in: Add multilib handling for x86_64
	on darwin.
	* system-darwin-x86_64.ads: New file.

From-SVN: r141882

gcc/ada/ChangeLog

+2008-11-15  Laurent Guerby  <laurent@guerby.net>
+
+	PR ada/37993
+	* gcc-interface/Makefile.in: Add multilib handling for x86_64
+	on darwin.
+	* system-darwin-x86_64.ads: New file.
+
 2008-11-13  Olivier Hainque  <hainque@adacore.com>
 
 	* gcc-interface/decl.c (gnat_to_gnu_entity) <case E_Function>:

gcc/ada/gcc-interface/Makefile.in

@@ -1720,8 +1720,14 @@ ifeq ($(strip $(filter-out darwin%,$(osys))),)
     s-taspri.ads<s-taspri-posix.ads \
     s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
     a-numaux.ads<a-numaux-x86.ads \
-    a-numaux.adb<a-numaux-x86.adb \
-    system.ads<system-darwin-x86.ads
+    a-numaux.adb<a-numaux-x86.adb
+    ifeq ($(strip $(MULTISUBDIR)),/x86_64)
+      LIBGNAT_TARGET_PAIRS += \
+      system.ads<system-darwin-x86_64.ads
+    else
+      LIBGNAT_TARGET_PAIRS += \
+      system.ads<system-darwin-x86.ads
+    endif
   else
     LIBGNAT_TARGET_PAIRS = \
     a-intnam.ads<a-intnam-darwin.ads \

gcc/ada/system-darwin-x86_64.ads

+------------------------------------------------------------------------------
+--                                                                          --
+--                        GNAT RUN-TIME COMPONENTS                          --
+--                                                                          --
+--                               S Y S T E M                                --
+--                                                                          --
+--                                 S p e c                                  --
+--                        (Darwin/x86_64 Version)                           --
+--                                                                          --
+--          Copyright (C) 1992-2008, Free Software Foundation, Inc.         --
+--                                                                          --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the  contents of the part following the private keyword. --
+--                                                                          --
+-- GNAT 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.  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.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
+-- Boston, MA 02110-1301, 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.                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+package System is
+   pragma Pure;
+   --  Note that we take advantage of the implementation permission to make
+   --  this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
+   --  2005, this is Pure in any case (AI-362).
+
+   type Name is (SYSTEM_NAME_GNAT);
+   System_Name : constant Name := SYSTEM_NAME_GNAT;
+
+   --  System-Dependent Named Numbers
+
+   Min_Int               : constant := Long_Long_Integer'First;
+   Max_Int               : constant := Long_Long_Integer'Last;
+
+   Max_Binary_Modulus    : constant := 2 ** Long_Long_Integer'Size;
+   Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1;
+
+   Max_Base_Digits       : constant := Long_Long_Float'Digits;
+   Max_Digits            : constant := Long_Long_Float'Digits;
+
+   Max_Mantissa          : constant := 63;
+   Fine_Delta            : constant := 2.0 ** (-Max_Mantissa);
+
+   Tick                  : constant := 0.01;
+
+   --  Storage-related Declarations
+
+   type Address is private;
+   pragma Preelaborable_Initialization (Address);
+   Null_Address : constant Address;
+
+   Storage_Unit : constant := 8;
+   Word_Size    : constant := 64;
+   Memory_Size  : constant := 2 ** 64;
+
+   --  Address comparison
+
+   function "<"  (Left, Right : Address) return Boolean;
+   function "<=" (Left, Right : Address) return Boolean;
+   function ">"  (Left, Right : Address) return Boolean;
+   function ">=" (Left, Right : Address) return Boolean;
+   function "="  (Left, Right : Address) return Boolean;
+
+   pragma Import (Intrinsic, "<");
+   pragma Import (Intrinsic, "<=");
+   pragma Import (Intrinsic, ">");
+   pragma Import (Intrinsic, ">=");
+   pragma Import (Intrinsic, "=");
+
+   --  Other System-Dependent Declarations
+
+   type Bit_Order is (High_Order_First, Low_Order_First);
+   Default_Bit_Order : constant Bit_Order := Low_Order_First;
+   pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
+
+   --  Priority-related Declarations (RM D.1)
+
+   --  The values defined here are derived from the following Darwin
+   --  sources:
+   --
+   --  Libc/pthreads/pthread.c
+   --    pthread_init calls host_info to retrieve the HOST_PRIORITY_INFO.
+   --    This file includes "pthread_internals".
+   --  Libc/pthreads/pthread_internals.h
+   --    This file includes <mach/mach.h>.
+   --  xnu/osfmk/mach/mach.h
+   --    This file includes <mach/mach_types.h>.
+   --  xnu/osfmk/mach/mach_types.h
+   --    This file includes <mach/host_info.h>.
+   --  xnu/osfmk/mach/host_info.h
+   --    This file contains the definition of the host_info_t data structure
+   --    and the function prototype for host_info.
+   --  xnu/osfmk/kern/host.c
+   --    This file defines the function host_info which sets the
+   --    priority_info field of struct host_info_t. This file includes
+   --    <kern/processor.h>.
+   --  xnu/osfmk/kern/processor.h
+   --    This file includes <kern/sched.h>.
+   --  xnu/osfmk/kern/sched.h
+   --    This file defines the values for each level of priority.
+
+   Max_Interrupt_Priority : constant Positive := 63;
+   Max_Priority           : constant Positive := Max_Interrupt_Priority - 1;
+
+   subtype Any_Priority is Integer range 0 .. Max_Interrupt_Priority;
+   subtype Priority is Any_Priority range 0 .. Max_Priority;
+   subtype Interrupt_Priority is Any_Priority
+     range Priority'Last + 1 .. Max_Interrupt_Priority;
+
+   Default_Priority : constant Priority :=
+     (Priority'Last - Priority'First) / 2;
+
+private
+
+   type Address is mod Memory_Size;
+   Null_Address : constant Address := 0;
+
+   --------------------------------------
+   -- System Implementation Parameters --
+   --------------------------------------
+
+   --  These parameters provide information about the target that is used
+   --  by the compiler. They are in the private part of System, where they
+   --  can be accessed using the special circuitry in the Targparm unit
+   --  whose source should be consulted for more detailed descriptions
+   --  of the individual switch values.
+
+   Backend_Divide_Checks     : constant Boolean := False;
+   Backend_Overflow_Checks   : constant Boolean := False;
+   Command_Line_Args         : constant Boolean := True;
+   Configurable_Run_Time     : constant Boolean := False;
+   Denorm                    : constant Boolean := True;
+   Duration_32_Bits          : constant Boolean := False;
+   Exit_Status_Supported     : constant Boolean := True;
+   Fractional_Fixed_Ops      : constant Boolean := False;
+   Frontend_Layout           : constant Boolean := False;
+   Machine_Overflows         : constant Boolean := False;
+   Machine_Rounds            : constant Boolean := True;
+   Preallocated_Stacks       : constant Boolean := False;
+   Signed_Zeros              : constant Boolean := True;
+   Stack_Check_Default       : constant Boolean := False;
+   Stack_Check_Probes        : constant Boolean := False;
+   Stack_Check_Limits        : constant Boolean := False;
+   Support_64_Bit_Divides    : constant Boolean := True;
+   Support_Aggregates        : constant Boolean := True;
+   Support_Composite_Assign  : constant Boolean := True;
+   Support_Composite_Compare : constant Boolean := True;
+   Support_Long_Shifts       : constant Boolean := True;
+   Always_Compatible_Rep     : constant Boolean := False;
+   Suppress_Standard_Library : constant Boolean := False;
+   Use_Ada_Main_Program_Name : constant Boolean := False;
+   ZCX_By_Default            : constant Boolean := True;
+   GCC_ZCX_Support           : constant Boolean := True;
+
+end System;