+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- G N A T . T R A C E B A C K --
--- --
--- S p e c --
--- --
--- $Revision: 1.3 $
--- --
--- Copyright (C) 1999-2001 Ada Core Technologies, Inc. --
--- --
--- 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- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- 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. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- 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). --
--- --
-------------------------------------------------------------------------------
-
--- Run-time non-symbolic traceback support
-
--- This package provides a method for generating a traceback of the
--- current execution location. The traceback shows the locations of
--- calls in the call chain, up to either the top or a designated
--- number of levels.
-
--- The traceback information is in the form of absolute code locations.
--- These code locations may be converted to corresponding source locations
--- using the external addr2line utility, or from within GDB.
-
--- To analyze the code locations later using addr2line or gdb, the necessary
--- units must be compiled with the debugging switch -g in the usual manner.
--- Note that it is not necessary to compile with -g to use Call_Chain. In
--- other words, the following sequence of steps can be used:
-
--- Compile without -g
--- Run the program, and call Call_Chain
--- Recompile with -g
--- Use addr2line to interpret the absolute call locations
-
--- This capability is currently supported on the following targets:
-
--- All x86 ports
--- AiX PowerPC
--- HP-UX
--- Irix
--- Solaris sparc
--- Tru64
--- VxWorks PowerPC
--- VxWorks Alpha
-
-with System;
-
-package GNAT.Traceback is
- pragma Elaborate_Body;
-
- subtype Code_Loc is System.Address;
- -- Code location used in building tracebacks
-
- type Tracebacks_Array is array (Positive range <>) of Code_Loc;
- -- Traceback array used to hold a generated traceback list.
-
- ----------------
- -- Call_Chain --
- ----------------
-
- procedure Call_Chain (Traceback : out Tracebacks_Array; Len : out Natural);
- -- Store up to Traceback'Length tracebacks corresponding to the current
- -- call chain. The first entry stored corresponds to the deepest level
- -- of subprogram calls. Len shows the number of traceback entries stored.
- -- It will be equal to Traceback'Length unless the entire traceback is
- -- shorter, in which case positions in Traceback past the Len position
- -- are undefined on return.
-
-end GNAT.Traceback;
projects / msp430-gcc.git / blobdiff