gcc/ada/s-traceb.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                     S Y S T E M . T R A C E B A C K                      --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --                            $Revision: 1.4 $
  10 --                                                                          --
  11 --           Copyright (C) 1999-2001 Ada Core Technologies, Inc.            --
  12 --                                                                          --
  13 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  14 -- terms of the  GNU General Public License as published  by the Free Soft- --
  15 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  16 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  17 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  18 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  19 -- for  more details.  You should have  received  a copy of the GNU General --
  20 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  21 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  22 -- MA 02111-1307, USA.                                                      --
  23 --                                                                          --
  24 -- As a special exception,  if other files  instantiate  generics from this --
  25 -- unit, or you link  this unit with other files  to produce an executable, --
  26 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  27 -- covered  by the  GNU  General  Public  License.  This exception does not --
  28 -- however invalidate  any other reasons why  the executable file  might be --
  29 -- covered by the  GNU Public License.                                      --
  30 --                                                                          --
  31 -- GNAT was originally developed  by the GNAT team at  New York University. --
  32 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  33 --                                                                          --
  34 ------------------------------------------------------------------------------
  35
  36 --  This is the default version of this package
  37
  38 package body System.Traceback is
  39
  40    ------------------
  41    -- C_Call_Chain --
  42    ------------------
  43
  44    function C_Call_Chain
  45      (Traceback : System.Address;
  46       Max_Len   : Natural)
  47       return      Natural
  48    is
  49       Val : Natural;
  50
  51    begin
  52       Call_Chain (Traceback, Max_Len, Val);
  53       return Val;
  54    end C_Call_Chain;
  55
  56    ----------------
  57    -- Call_Chain --
  58    ----------------
  59
  60    function Backtrace
  61      (Traceback   : System.Address;
  62       Len         : Integer;
  63       Exclude_Min : System.Address;
  64       Exclude_Max : System.Address)
  65       return        Integer;
  66    pragma Import (C, Backtrace, "__gnat_backtrace");
  67
  68    procedure Call_Chain
  69      (Traceback : System.Address;
  70       Max_Len   : Natural;
  71       Len       : out Natural;
  72       Exclude_Min,
  73       Exclude_Max : System.Address := System.Null_Address)
  74    is
  75    begin
  76       Len := Backtrace (Traceback, Max_Len, Exclude_Min, Exclude_Max);
  77    end Call_Chain;
  78
  79 end System.Traceback;