-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2011, 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 --
-- --
-- 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- --
+-- 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. 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. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- 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. --
+-- 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 Ada_05 (Wide_Wide_Exception_Name);
procedure Raise_Exception (E : Exception_Id; Message : String := "");
- -- Note: it would be really nice to give a pragma No_Return for this
- -- procedure, but it would be wrong, since Raise_Exception does return
- -- if given the null exception. However we do special case the name in
- -- the test in the compiler for issuing a warning for a missing return
- -- after this call. Program_Error seems reasonable enough in such a case.
- -- See also the routine Raise_Exception_Always in the private part.
+ pragma No_Return (Raise_Exception);
+ -- Note: In accordance with AI-466, CE is raised if E = Null_Id
function Exception_Message (X : Exception_Occurrence) return String;
-- 0xyyyyyyyy 0xyyyyyyyy ...
--
-- The lines are separated by a ASCII.LF character
- -- The nnnn is the partition Id given as decimal digits.
+ --
+ -- The nnnn is the partition Id given as decimal digits
+ --
-- The 0x... line represents traceback program counter locations,
-- in order with the first one being the exception location.
(Source : Exception_Occurrence)
return Exception_Occurrence_Access;
- -- Ada 2005 (AI-438): The language revision introduces the
- -- following subprograms and attribute definitions. We do not
- -- provide them explicitly; instead, the corresponding stream
- -- attributes are made available through a pragma Stream_Convert
- -- in the private part of this package.
+ -- Ada 2005 (AI-438): The language revision introduces the following
+ -- subprograms and attribute definitions. We do not provide them
+ -- explicitly. instead, the corresponding stream attributes are made
+ -- available through a pragma Stream_Convert in the private part.
-- procedure Read_Exception_Occurrence
-- (Stream : not null access Ada.Streams.Root_Stream_Type'Class;
pragma Export
(Ada, Current_Target_Exception,
"__gnat_current_target_exception");
- -- This routine should return the current raised exception on targets
- -- which have built-in exception handling such as the Java Virtual
- -- Machine. For other targets this routine is simply ignored. Currently,
- -- only JGNAT uses this. See 4jexcept.ads for details. The pragma Export
- -- allows this routine to be accessed elsewhere in the run-time, even
- -- though it is in the private part of this package (it is not allowed
- -- to be in the visible part, since this is set by the reference manual).
+ -- This routine should return the current raised exception on targets which
+ -- have built-in exception handling such as the Java Virtual Machine. For
+ -- other targets this routine is simply ignored. Currently, only JGNAT
+ -- uses this. See 4jexcept.ads for details. The pragma Export allows this
+ -- routine to be accessed elsewhere in the run-time, even though it is in
+ -- the private part of this package (it is not allowed to be in the visible
+ -- part, since this is set by the reference manual).
function Exception_Name_Simple (X : Exception_Occurrence) return String;
-- Like Exception_Name, but returns the simple non-qualified name of the
pragma No_Return (Raise_Exception_Always);
pragma Export (Ada, Raise_Exception_Always, "__gnat_raise_exception");
-- This differs from Raise_Exception only in that the caller has determined
- -- that for sure the parameter E is not null, and that therefore the call
- -- to this procedure cannot return. The expander converts Raise_Exception
- -- calls to Raise_Exception_Always if it can determine this is the case.
- -- The Export allows this routine to be accessed from Pure units.
+ -- that for sure the parameter E is not null, and that therefore no check
+ -- for Null_Id is required. The expander converts Raise_Exception calls to
+ -- Raise_Exception_Always if it can determine this is the case. The Export
+ -- allows this routine to be accessed from Pure units.
procedure Raise_From_Signal_Handler
(E : Exception_Id;
procedure Raise_From_Controlled_Operation
(X : Ada.Exceptions.Exception_Occurrence);
pragma No_Return (Raise_From_Controlled_Operation);
- -- Raise Program_Error, providing information about X (an exception
- -- raised during a controlled operation) in the exception message.
+ pragma Export
+ (Ada, Raise_From_Controlled_Operation,
+ "__gnat_raise_from_controlled_operation");
+ -- Raise Program_Error, providing information about X (an exception raised
+ -- during a controlled operation) in the exception message.
procedure Reraise_Occurrence_Always (X : Exception_Occurrence);
pragma No_Return (Reraise_Occurrence_Always);
pragma No_Return (Reraise_Occurrence_No_Defer);
-- Exactly like Reraise_Occurrence, except that abort is not deferred
-- before the call and the parameter X is known not to be the null
- -- occurrence. This is used in generated code when it is known that
- -- abort is already deferred.
+ -- occurrence. This is used in generated code when it is known that abort
+ -- is already deferred.
+
+ function Triggered_By_Abort return Boolean;
+ -- Determine whether the current exception (if it exists) is an instance of
+ -- Standard'Abort_Signal.
-----------------------
-- Polling Interface --
type Exception_Occurrence is record
Id : Exception_Id;
-- Exception_Identity for this exception occurrence
+ --
-- WARNING System.System.Finalization_Implementation.Finalize_List
-- relies on the fact that this field is always first in the exception
-- occurrence
Msg : String (1 .. Exception_Msg_Max_Length);
-- Characters of message
- Cleanup_Flag : Boolean := False;
- -- The cleanup flag is normally False, it is set True for an exception
- -- occurrence passed to a cleanup routine, and will still be set True
- -- when the cleanup routine does a Reraise_Occurrence call using this
- -- exception occurrence. This is used to avoid recording a bogus trace
- -- back entry from this reraise call.
-
Exception_Raised : Boolean := False;
-- Set to true to indicate that this exception occurrence has actually
-- been raised. When an exception occurrence is first created, this is
Tracebacks : Tracebacks_Array;
-- Stored tracebacks (in Tracebacks (1 .. Num_Tracebacks))
-
- Private_Data : System.Address := System.Null_Address;
- -- Field used by low level exception mechanism to store specific data.
- -- Currently used by the GCC exception mechanism to store a pointer to
- -- a GNAT_GCC_Exception.
end record;
function "=" (Left, Right : Exception_Occurrence) return Boolean
Id => null,
Msg_Length => 0,
Msg => (others => ' '),
- Cleanup_Flag => False,
Exception_Raised => False,
Pid => 0,
Num_Tracebacks => 0,
- Tracebacks => (others => TBE.Null_TB_Entry),
- Private_Data => System.Null_Address);
+ Tracebacks => (others => TBE.Null_TB_Entry));
end Ada.Exceptions;
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