-- --
-- S p e c --
-- --
--- Copyright (C) 2000-2003 Ada Core Technologies, Inc. --
+-- Copyright (C) 2000-2008, AdaCore --
-- --
-- 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- --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
--- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package provides an interface allowing to control *automatic* output
-- to standard error upon exception occurrences (as opposed to explicit
-- generation of traceback information using GNAT.Traceback).
---
+
-- This output includes the basic information associated with the exception
-- (name, message) as well as a backtrace of the call chain at the point
-- where the exception occurred. This backtrace is only output if the call
-- chain information is available, depending if the binder switch dedicated
-- to that purpose has been used or not.
---
+
-- The default backtrace is in the form of absolute code locations which may
-- be converted to corresponding source locations using the addr2line utility
-- or from within GDB. Please refer to GNAT.Traceback for information about
--- what is necessary to be able to exploit thisg possibility.
---
+-- what is necessary to be able to exploit this possibility.
+
-- The backtrace output can also be customized by way of a "decorator" which
-- may return any string output in association with a provided call chain.
+-- The decorator replaces the default backtrace mentioned above.
with GNAT.Traceback; use GNAT.Traceback;
-- traces identified by the above trace kind values.
procedure Trace_On (Kind : Trace_Kind);
- -- Activate the traces denoted by Kind.
+ -- Activate the traces denoted by Kind
procedure Trace_Off;
-- Stop the tracing requested by the last call to Trace_On.
-- Set the decorator to be used for future automatic outputs. Restore
-- the default behavior (output of raw addresses) if the provided
-- access value is null.
+ --
+ -- Note: GNAT.Traceback.Symbolic.Symbolic_Traceback may be used as the
+ -- Decorator, to get a symbolic traceback. This will cause a significant
+ -- cpu and memory overhead.
end GNAT.Exception_Traces;
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