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