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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [s-traent.ads] - Blame information for rev 281

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1 281 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT RUN-TIME COMPONENTS                         --
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--                                                                          --
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--              S Y S T E M . T R A C E B A C K _ E N T R I E S             --
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--                                                                          --
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--                                 S p e c                                  --
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--                                                                          --
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--          Copyright (C) 2003-2009, Free Software Foundation, Inc.         --
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--                                                                          --
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-- This specification is derived from the Ada Reference Manual for use with --
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-- GNAT. The copyright notice above, and the license provisions that follow --
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-- apply solely to the  contents of the part following the private keyword. --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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--  This package offers an abstraction of what is stored in traceback arrays
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--  for call-chain computation purposes. By default, as defined in this
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--  version of the package, an entry is a mere code location representing the
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--  address of a call instruction part of the call-chain.
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pragma Compiler_Unit;
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package System.Traceback_Entries is
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   pragma Preelaborate;
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   subtype Traceback_Entry is System.Address;
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   --  This subtype defines what each traceback array entry contains
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   Null_TB_Entry : constant Traceback_Entry := System.Null_Address;
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   --  This is the value to be used when initializing an entry
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   function PC_For (TB_Entry : Traceback_Entry) return System.Address;
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   pragma Inline (PC_For);
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   --  Returns the address of the call instruction associated with the
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   --  provided entry.
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   function TB_Entry_For (PC : System.Address) return Traceback_Entry;
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   pragma Inline (TB_Entry_For);
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   --  Returns an entry representing a frame for a call instruction at PC
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end System.Traceback_Entries;

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