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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [g-trasym.ads] - Rev 718
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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- G N A T . T R A C E B A C K . S Y M B O L I C -- -- -- -- S p e c -- -- -- -- Copyright (C) 1999-2011, 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- -- -- ware Foundation; either version 3, 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. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- <http://www.gnu.org/licenses/>. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Run-time symbolic traceback support -- The full capability is currently supported on the following targets: -- HP-UX ia64 -- IRIX -- GNU/Linux x86, x86_64, ia64 -- FreeBSD x86, x86_64 -- Solaris sparc and x86 -- Tru64 -- OpenVMS Alpha and ia64 -- Windows -- Note: on targets other than those listed above, a dummy implementation of -- the body returns a series of LF separated strings of the form "0x..." -- corresponding to the addresses. -- The routines provided in this package assume that your application has -- been compiled with debugging information turned on, since this information -- is used to build a symbolic traceback. -- If you want to retrieve tracebacks from exception occurrences, it is also -- necessary to invoke the binder with -E switch. Please refer to the gnatbind -- documentation for more information. -- Note that it is also possible (and often recommended) to compute symbolic -- traceback outside the program execution, which in addition allows you -- to distribute the executable with no debug info: -- -- - build your executable with debug info -- - archive this executable -- - strip a copy of the executable and distribute/deploy this version -- - at run time, compute absolute traceback (-bargs -E) from your -- executable and log it using Ada.Exceptions.Exception_Information -- - off line, compute the symbolic traceback using the executable archived -- with debug info and addr2line or gdb (using info line *<addr>) on the -- absolute addresses logged by your application. -- In order to retrieve symbolic information, functions in this package will -- read on disk all the debug information of the executable file (found via -- Argument (0), and looked in the PATH if needed), and load them in memory, -- causing a significant cpu and memory overhead. -- On all platforms except VMS, this package is not intended to be used -- within a shared library, symbolic tracebacks are only supported for the -- main executable and not for shared libraries. You should consider using -- gdb to obtain symbolic traceback in such cases. -- On VMS, there is no restriction on using this facility with shared -- libraries. However, the OS should be at least v7.3-1 and OS patch -- VMS731_TRACE-V0100 must be applied in order to use this package. -- On platforms where the full capability is not supported, function -- Symbolic_Traceback return a list of addresses expressed as "0x..." -- separated by line feed. with Ada.Exceptions; use Ada.Exceptions; package GNAT.Traceback.Symbolic is pragma Elaborate_Body; function Symbolic_Traceback (Traceback : Tracebacks_Array) return String; -- Build a string containing a symbolic traceback of the given call chain. -- Note: This procedure may be installed by Set_Trace_Decorator, to get a -- symbolic traceback on all exceptions raised (see GNAT.Exception_Traces). function Symbolic_Traceback (E : Exception_Occurrence) return String; -- Build string containing symbolic traceback of given exception occurrence end GNAT.Traceback.Symbolic;
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