New Language: Ada

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45955 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 87 insertions, 0 deletions

diff --git a/gcc/ada/g-trasym.adb b/gcc/ada/g-trasym.adb
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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                                  --
+--                                                                          --
+--                            $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;