| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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 -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- $Revision: 1.6 $ |
| -- -- |
| -- Copyright (C) 1999 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 symbolic traceback support |
| |
| with System.Soft_Links; |
| with Ada.Exceptions.Traceback; use Ada.Exceptions.Traceback; |
| |
| package body GNAT.Traceback.Symbolic is |
| |
| pragma Linker_Options ("-laddr2line"); |
| pragma Linker_Options ("-lbfd"); |
| pragma Linker_Options ("-liberty"); |
| |
| package TSL renames System.Soft_Links; |
| |
| ------------------------ |
| -- Symbolic_Traceback -- |
| ------------------------ |
| |
| function Symbolic_Traceback (Traceback : Tracebacks_Array) return String is |
| procedure convert_addresses |
| (addrs : System.Address; |
| n_addr : Integer; |
| buf : System.Address; |
| len : System.Address); |
| pragma Import (C, convert_addresses, "convert_addresses"); |
| -- This is the procedure version of the Ada aware addr2line that will |
| -- use argv[0] as the executable containing the debug information. |
| -- This procedure is provided by libaddr2line on targets that support |
| -- it. A dummy version is in a-adaint.c for other targets so that build |
| -- of shared libraries doesn't generate unresolved symbols. |
| -- |
| -- Note that this procedure is *not* thread-safe. |
| |
| Res : String (1 .. 256 * Traceback'Length); |
| Len : Integer; |
| |
| begin |
| if Traceback'Length > 0 then |
| TSL.Lock_Task.all; |
| convert_addresses |
| (Traceback'Address, Traceback'Length, Res (1)'Address, Len'Address); |
| TSL.Unlock_Task.all; |
| return Res (1 .. Len); |
| else |
| return ""; |
| end if; |
| end Symbolic_Traceback; |
| |
| function Symbolic_Traceback (E : Exception_Occurrence) return String is |
| begin |
| return Symbolic_Traceback (Tracebacks (E)); |
| end Symbolic_Traceback; |
| |
| end GNAT.Traceback.Symbolic; |
