diff options
Diffstat (limited to 'gcc-4.2.1/gcc/ada/g-trasym.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/g-trasym.adb | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/g-trasym.adb b/gcc-4.2.1/gcc/ada/g-trasym.adb new file mode 100644 index 000000000..e8f91221a --- /dev/null +++ b/gcc-4.2.1/gcc/ada/g-trasym.adb @@ -0,0 +1,86 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 1999-2005, 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 + +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; |