gcc/ada/comperr.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              C O M P E R R                               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                                                                          --
  10 --          Copyright (C) 1992-2000 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- GNAT was originally developed  by the GNAT team at  New York University. --
  24 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  25 --                                                                          --
  26 ------------------------------------------------------------------------------
  27
  28 --  This package contains the routine called when a fatal internal compiler
  29 --  error is detected. Calls to this routines cause termination of the
  30 --  current compilation with appropriate error output.
  31
  32 package Comperr is
  33
  34    procedure Compiler_Abort
  35      (X    : String;
  36       Code : Integer := 0);
  37    --  Signals an internal compiler error. Never returns control. Depending
  38    --  on processing may end up raising Unrecoverable_Error, or exiting
  39    --  directly. The message output is a "bug box" containing the
  40    --  string passed as an argument. The node in Current_Error_Node is used
  41    --  to provide the location where the error should be signalled. The
  42    --  message includes the node id, and the code parameter if it is positive.
  43    --  Note that this is only used at the outer level (to handle constraint
  44    --  errors or assert errors etc.) In the normal logic of the compiler we
  45    --  always use pragma Assert to check for errors, and if necessary an
  46    --  explicit abort is achieved by pragma Assert (False). Code is positive
  47    --  for a gigi abort (giving the gigi abort code), zero for a front
  48    --  end exception (with possible message stored in TSD.Current_Excep,
  49    --  and negative (an unused value) for a GCC abort.
  50
  51    ------------------------------
  52    -- Use of gnat_bug.box File --
  53    ------------------------------
  54
  55    --  When comperr generates the "bug box". The first two lines contain
  56    --  information on the version number, type of abort, and source location.
  57
  58    --  Normally the remaining text is one of the following two forms
  59    --  depending on the version number (p identifies public versions):
  60
  61    --    Please submit bug report by email to report@gnat.com.
  62    --    Use a subject line meaningful to you and us to track the bug.
  63    --    (include your customer number #nnn in the subject line).
  64    --    Include the entire contents of this bug box in the report.
  65    --    Include the exact gcc or gnatmake command that you entered.
  66    --    Also include sources listed below in gnatchop format
  67    --    (concatenated together with no headers between files).
  68    --    (use plain ASCII or MIME attachment,
  69    --    or FTP to your customer directory).
  70    --    See README.GNATPRO for full info on procedure for submitting bugs.
  71
  72    --  or (public version case)
  73
  74    --    Please submit bug report by email to report@gnat.com.
  75    --    Use a subject line meaningful to you and us to track the bug.
  76    --    (include your customer number #nnn in the subject line).
  77    --    Include the entire contents of this bug box in the report.
  78    --    Include the exact gcc or gnatmake command that you entered.
  79    --    Also include sources listed below in gnatchop format
  80    --    (concatenated together with no headers between files).
  81    --    See gnatinfo.txt for full info on procedure for submitting bugs.
  82
  83    --  However, an alternative mechanism exists for easily substituting
  84    --  different text for this message. Compiler_Abort checks for the
  85    --  existence of the file "gnat_bug.box" in the current source path.
  86    --  Most typically this file, if present, will be in the directory
  87    --  containing the run-time sources.
  88
  89    --  If this file is present, then it is a plain ASCII file, whose
  90    --  contents replace the above quoted paragraphs. The lines in this
  91    --  file should be 72 characters or less to avoid misformatting the
  92    --  right boundary of the box. Note that the file does not contain
  93    --  the vertical bar characters or any leading spaces in lines.
  94
  95 end Comperr;