diff options
Diffstat (limited to 'gcc-4.3.1/gcc/ada/a-excpol-abort.adb')
| -rw-r--r-- | gcc-4.3.1/gcc/ada/a-excpol-abort.adb | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gcc-4.3.1/gcc/ada/a-excpol-abort.adb b/gcc-4.3.1/gcc/ada/a-excpol-abort.adb new file mode 100644 index 000000000..db04ec57e --- /dev/null +++ b/gcc-4.3.1/gcc/ada/a-excpol-abort.adb @@ -0,0 +1,65 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- +-- -- +-- A D A . E X C E P T I O N S . P O L L -- +-- (version supporting asynchronous abort test) -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2005, Free Software Foundation, Inc. -- +-- -- +-- GNARL 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. GNARL 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 GNARL; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, 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. -- +-- -- +-- GNARL was developed by the GNARL team at Florida State University. -- +-- Extensive contributions were provided by Ada Core Technologies, Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This version is for targets that do not support per-thread asynchronous +-- signals. On such targets, we require compilation with the -gnatP switch +-- that activates periodic polling. Then in the body of the polling routine +-- we test for asynchronous abort. + +-- NT, OS/2, HPUX/DCE and SCO currently use this file + +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.Soft_Links; +-- used for Check_Abort_Status + +pragma Warnings (On); + +separate (Ada.Exceptions) + +---------- +-- Poll -- +---------- + +procedure Poll is +begin + -- Test for asynchronous abort on each poll + + if System.Soft_Links.Check_Abort_Status.all /= 0 then + raise Standard'Abort_Signal; + end if; +end Poll; |