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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [gcc/] [ada/] [a-excach.adb] - Rev 281
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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- A D A . E X C E P T I O N S . C A L L _ C H A I N -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2009, Free Software Foundation, 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 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. -- -- -- ------------------------------------------------------------------------------ pragma Warnings (Off); -- Allow withing of non-Preelaborated units in Ada 2005 mode where this -- package will be categorized as Preelaborate. See AI-362 for details. -- It is safe in the context of the run-time to violate the rules! with System.Traceback; pragma Warnings (On); separate (Ada.Exceptions) procedure Call_Chain (Excep : EOA) is Exception_Tracebacks : Integer; pragma Import (C, Exception_Tracebacks, "__gl_exception_tracebacks"); -- Boolean indicating whether tracebacks should be stored in exception -- occurrences. begin if Exception_Tracebacks /= 0 and Excep.Num_Tracebacks = 0 then -- If Exception_Tracebacks = 0 then the program was not -- compiled for storing tracebacks in exception occurrences -- (-bargs -E switch) so that we do not generate them. -- -- If Excep.Num_Tracebacks /= 0 then this is a reraise, no need -- to store a new (wrong) chain. -- We ask System.Traceback.Call_Chain to skip 3 frames to ensure that -- itself, ourselves and our caller are not part of the result. Our -- caller is always an exception propagation actor that we don't want -- to see, and it may be part of a separate subunit which pulls it -- outside the AAA/ZZZ range. System.Traceback.Call_Chain (Traceback => Excep.Tracebacks'Address, Max_Len => Max_Tracebacks, Len => Excep.Num_Tracebacks, Exclude_Min => Code_Address_For_AAA, Exclude_Max => Code_Address_For_ZZZ, Skip_Frames => 3); end if; end Call_Chain;
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