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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 --
-- --
-- B o d y --
-- --
-- Copyright (C) 1999-2002 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 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
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;
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