------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . T R A C E B A C K _ E N T R I E S -- -- -- -- S p e c -- -- -- -- Copyright (C) 2003 Free Software Foundation, Inc. -- -- -- -- This specification is derived from the Ada Reference Manual for use with -- -- GNAT. The copyright notice above, and the license provisions that follow -- -- apply solely to the contents of the part following the private keyword. -- -- -- -- 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. -- -- -- ------------------------------------------------------------------------------ -- This package offers an abstraction of what is stored in traceback arrays -- for call-chain computation purposes. By default, as defined in this -- version of the package, an entry is a mere code location representing the -- address of a call instruction part of the call-chain. package System.Traceback_Entries is subtype Traceback_Entry is System.Address; -- This subtype defines what each traceback array entry contains. Null_TB_Entry : constant Traceback_Entry := System.Null_Address; -- This is the value to be used when initializing an entry. function PC_For (TB_Entry : Traceback_Entry) return System.Address; pragma Inline (PC_For); -- Returns the address of the call instruction associated with the -- provided entry. function TB_Entry_For (PC : System.Address) return Traceback_Entry; pragma Inline (TB_Entry_For); -- Returns an entry representing a frame for a call instruction at PC. end System.Traceback_Entries;