diff options
Diffstat (limited to 'gcc/ada/s-trasym.ads')
| -rw-r--r-- | gcc/ada/s-trasym.ads | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/gcc/ada/s-trasym.ads b/gcc/ada/s-trasym.ads new file mode 100644 index 0000000..ea0b46b --- /dev/null +++ b/gcc/ada/s-trasym.ads @@ -0,0 +1,81 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . T R A C E B A C K . S Y M B O L I C -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1999-2014, 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 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) or shared libraries using +-- OS facilities, and load them in memory, causing a significant cpu and +-- memory overhead. + +-- 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; + +package System.Traceback.Symbolic is + pragma Elaborate_Body; + + function Symbolic_Traceback + (Traceback : System.Traceback_Entries.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 + -- System.Exception_Traces). + + function Symbolic_Traceback + (E : Ada.Exceptions.Exception_Occurrence) return String; + -- Build string containing symbolic traceback of given exception occurrence + +end System.Traceback.Symbolic; |