87 lines
4 KiB
Ada
87 lines
4 KiB
Ada
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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- S Y S T E M . T R A C E B A C K . S Y M B O L I C --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1999-2015, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This is the default implementation for platforms where the full capability
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-- is not supported. It returns tracebacks as lists of hexadecimal addresses
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-- of the form "0x...".
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pragma Polling (Off);
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-- We must turn polling off for this unit, because otherwise we can get
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-- elaboration circularities when polling is turned on.
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with Ada.Exceptions.Traceback; use Ada.Exceptions.Traceback;
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with System.Address_Image;
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package body System.Traceback.Symbolic is
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------------------------
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-- Symbolic_Traceback --
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------------------------
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function Symbolic_Traceback
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(Traceback : System.Traceback_Entries.Tracebacks_Array) return String
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is
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begin
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if Traceback'Length = 0 then
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return "";
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else
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declare
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Img : String := System.Address_Image (Traceback (Traceback'First));
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Result : String (1 .. (Img'Length + 3) * Traceback'Length);
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Last : Natural := 0;
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begin
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for J in Traceback'Range loop
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Img := System.Address_Image (Traceback (J));
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Result (Last + 1 .. Last + 2) := "0x";
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Last := Last + 2;
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Result (Last + 1 .. Last + Img'Length) := Img;
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Last := Last + Img'Length + 1;
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Result (Last) := ' ';
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end loop;
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Result (Last) := ASCII.LF;
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return Result (1 .. Last);
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end;
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end if;
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end Symbolic_Traceback;
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function Symbolic_Traceback
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(E : Ada.Exceptions.Exception_Occurrence) return String
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is
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begin
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return Symbolic_Traceback (Ada.Exceptions.Traceback.Tracebacks (E));
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end Symbolic_Traceback;
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end System.Traceback.Symbolic;
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