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Diffstat (limited to 'gcc-4.3.1/gcc/ada/g-trasym.ads')
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1 files changed, 97 insertions, 0 deletions
diff --git a/gcc-4.3.1/gcc/ada/g-trasym.ads b/gcc-4.3.1/gcc/ada/g-trasym.ads new file mode 100644 index 000000000..346f73bda --- /dev/null +++ b/gcc-4.3.1/gcc/ada/g-trasym.ads @@ -0,0 +1,97 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 1999-2007, 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 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, 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, -- +-- 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 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 + +-- This capability is currently supported on the following targets: + +-- HP-UX +-- IRIX +-- GNU/Linux x86 +-- AIX +-- Solaris sparc +-- Tru64 +-- OpenVMS/Alpha +-- Windows NT/XP/Vista + +-- 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. + +with Ada.Exceptions; use Ada.Exceptions; + +package GNAT.Traceback.Symbolic is + pragma Elaborate_Body; + + ------------------------ + -- Symbolic_Traceback -- + ------------------------ + + function Symbolic_Traceback (Traceback : Tracebacks_Array) return String; + -- Build a string containing a symbolic traceback of the given call chain + + function Symbolic_Traceback (E : Exception_Occurrence) return String; + -- Build string containing symbolic traceback of given exception occurrence + +end GNAT.Traceback.Symbolic; |