From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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. --- gcc/ada/system-tru64.ads | 216 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 216 insertions(+) create mode 100644 gcc/ada/system-tru64.ads (limited to 'gcc/ada/system-tru64.ads') diff --git a/gcc/ada/system-tru64.ads b/gcc/ada/system-tru64.ads new file mode 100644 index 000000000..e56ae5955 --- /dev/null +++ b/gcc/ada/system-tru64.ads @@ -0,0 +1,216 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M -- +-- -- +-- S p e c -- +-- (DEC Unix Version) -- +-- -- +-- Copyright (C) 1992-2009, 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 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 -- +-- . -- +-- -- +-- 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 := 1.0 / 1024.0; + + -- 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) + + Max_Priority : constant Positive := 60; + Max_Interrupt_Priority : constant Positive := 63; + + subtype Any_Priority is Integer range 0 .. 63; + subtype Priority is Any_Priority range 0 .. 60; + subtype Interrupt_Priority is Any_Priority range 61 .. 63; + + Default_Priority : constant Priority := 30; + +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 := True; + Command_Line_Args : constant Boolean := True; + Configurable_Run_Time : constant Boolean := False; + Denorm : constant Boolean := False; + 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 := True; + Stack_Check_Probes : constant Boolean := True; + 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 := True; + 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; + + -- Note: Denorm is False because denormals are only handled properly + -- if the -mieee switch is set, and we do not require this usage. + + --------------------------- + -- Underlying Priorities -- + --------------------------- + + -- Important note: this section of the file must come AFTER the + -- definition of the system implementation parameters to ensure + -- that the value of these parameters is available for analysis + -- of the declarations here (using Rtsfind at compile time). + + -- The underlying priorities table provides a generalized mechanism + -- for mapping from Ada priorities to system priorities. In some + -- cases a 1-1 mapping is not the convenient or optimal choice. + + -- For Dec Unix 4.0d, we use a default 1-to-1 mapping that provides + -- the full range of 64 priorities available from the operating system. + + -- On DU prior to 4.0d, less than 64 priorities are available so there + -- are two possibilities: + + -- Limit your range of priorities to the range provided by the + -- OS (e.g 16 .. 32 on 4.0b) + + -- Replace the standard table as described below + + -- To replace the default values of the Underlying_Priorities mapping, + -- copy this source file into your build directory, edit the file to + -- reflect your desired behavior, and recompile with the command: + + -- $ gcc -c -O3 -gnatpgn system.ads + + -- then recompile the run-time parts that depend on this package: + + -- $ gnatmake -a -gnatn -O3 + + -- then force rebuilding your application if you need different options: + + -- $ gnatmake -f + + type Priorities_Mapping is array (Any_Priority) of Integer; + pragma Suppress_Initialization (Priorities_Mapping); + -- Suppress initialization in case gnat.adc specifies Normalize_Scalars + + Underlying_Priorities : constant Priorities_Mapping := + + (Priority'First => 0, + + 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, + 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10, + 11 => 11, 12 => 12, 13 => 13, 14 => 14, 15 => 15, + 16 => 16, 17 => 17, 18 => 18, 19 => 19, 20 => 20, + 21 => 21, 22 => 22, 23 => 23, 24 => 24, 25 => 25, + 26 => 26, 27 => 27, 28 => 28, 29 => 29, + + Default_Priority => 30, + + 31 => 31, 32 => 32, 33 => 33, 34 => 34, 35 => 35, + 36 => 36, 37 => 37, 38 => 38, 39 => 39, 40 => 40, + 41 => 41, 42 => 42, 43 => 43, 44 => 44, 45 => 45, + 46 => 46, 47 => 47, 48 => 48, 49 => 49, 50 => 50, + 51 => 51, 52 => 52, 53 => 53, 54 => 54, 55 => 55, + 56 => 56, 57 => 57, 58 => 58, 59 => 59, + + Priority'Last => 60, + + 61 => 61, 62 => 62, + + Interrupt_Priority'Last => 63); + +end System; -- cgit v1.2.3