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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [s-intman-vxworks.adb] - Rev 724
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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- -- -- -- S Y S T E M . I N T E R R U P T _ M A N A G E M E N T -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2010, 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 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. -- -- -- -- 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/>. -- -- -- -- GNARL was developed by the GNARL team at Florida State University. -- -- Extensive contributions were provided by Ada Core Technologies, Inc. -- -- -- ------------------------------------------------------------------------------ -- This is the VxWorks version of this package -- It is simpler than other versions because the Ada interrupt handling -- mechanisms are used for hardware interrupts rather than signals. package body System.Interrupt_Management is use System.OS_Interface; use type Interfaces.C.int; ----------------------- -- Local Subprograms -- ----------------------- function State (Int : Interrupt_ID) return Character; pragma Import (C, State, "__gnat_get_interrupt_state"); -- Get interrupt state. Defined in init.c The input argument is the -- hardware interrupt number, and the result is one of the following: Runtime : constant Character := 'r'; Default : constant Character := 's'; -- 'n' this interrupt not set by any Interrupt_State pragma -- 'u' Interrupt_State pragma set state to User -- 'r' Interrupt_State pragma set state to Runtime -- 's' Interrupt_State pragma set state to System (use "default" -- system handler) ---------------- -- Initialize -- ---------------- Initialized : Boolean := False; -- Set to True once Initialize is called, further calls have no effect procedure Initialize is begin if Initialized then return; end if; Initialized := True; -- Change this if you want to use another signal for task abort. -- SIGTERM might be a good one. Abort_Task_Interrupt := SIGABRT; -- Initialize hardware interrupt handling pragma Assert (Reserve = (Interrupt_ID'Range => False)); -- Check all interrupts for state that requires keeping them reserved for J in Interrupt_ID'Range loop if State (J) = Default or else State (J) = Runtime then Reserve (J) := True; end if; end loop; end Initialize; end System.Interrupt_Management;
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