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Diffstat (limited to 'gcc-4.7/gcc/ada/s-intman.ads')
| -rw-r--r-- | gcc-4.7/gcc/ada/s-intman.ads | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/gcc-4.7/gcc/ada/s-intman.ads b/gcc-4.7/gcc/ada/s-intman.ads deleted file mode 100644 index 5f3f4d500..000000000 --- a/gcc-4.7/gcc/ada/s-intman.ads +++ /dev/null @@ -1,111 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- 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 -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2009, 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 package encapsulates and centralizes information about all uses of --- interrupts (or signals), including the target-dependent mapping of --- interrupts (or signals) to exceptions. - --- Unlike the original design, System.Interrupt_Management can only be used --- for tasking systems. - --- PLEASE DO NOT put any subprogram declarations with arguments of type --- Interrupt_ID into the visible part of this package. The type Interrupt_ID --- is used to derive the type in Ada.Interrupts, and adding more operations --- to that type would be illegal according to the Ada Reference Manual. This --- is the reason why the signals sets are implemented using visible arrays --- rather than functions. - -with System.OS_Interface; - -with Interfaces.C; - -package System.Interrupt_Management is - pragma Preelaborate; - - type Interrupt_Mask is limited private; - - type Interrupt_ID is new Interfaces.C.int - range 0 .. System.OS_Interface.Max_Interrupt; - - type Interrupt_Set is array (Interrupt_ID) of Boolean; - - -- The following objects serve as constants, but are initialized in the - -- body to aid portability. This permits us to use more portable names for - -- interrupts, where distinct names may map to the same interrupt ID - -- value. - - -- For example, suppose SIGRARE is a signal that is not defined on all - -- systems, but is always reserved when it is defined. If we have the - -- convention that ID zero is not used for any "real" signals, and SIGRARE - -- = 0 when SIGRARE is not one of the locally supported signals, we can - -- write: - -- Reserved (SIGRARE) := True; - -- and the initialization code will be portable. - - Abort_Task_Interrupt : Interrupt_ID; - -- The interrupt that is used to implement task abort if an interrupt is - -- used for that purpose. This is one of the reserved interrupts. - - Keep_Unmasked : Interrupt_Set := (others => False); - -- Keep_Unmasked (I) is true iff the interrupt I is one that must that - -- must be kept unmasked at all times, except (perhaps) for short critical - -- sections. This includes interrupts that are mapped to exceptions (see - -- System.Interrupt_Exceptions.Is_Exception), but may also include - -- interrupts (e.g. timer) that need to be kept unmasked for other - -- reasons. Where interrupts are implemented as OS signals, and signal - -- masking is per-task, the interrupt should be unmasked in ALL TASKS. - - Reserve : Interrupt_Set := (others => False); - -- Reserve (I) is true iff the interrupt I is one that cannot be permitted - -- to be attached to a user handler. The possible reasons are many. For - -- example, it may be mapped to an exception used to implement task abort, - -- or used to implement time delays. - - procedure Initialize; - -- Initialize the various variables defined in this package. This procedure - -- must be called before accessing any object from this package, and can be - -- called multiple times. - -private - type Interrupt_Mask is new System.OS_Interface.sigset_t; - -- In some implementations Interrupt_Mask is represented as a linked list - - procedure Adjust_Context_For_Raise - (Signo : System.OS_Interface.Signal; - Ucontext : System.Address); - pragma Import - (C, Adjust_Context_For_Raise, "__gnat_adjust_context_for_raise"); - -- Target specific hook performing adjustments to the signal's machine - -- context, to be called before an exception may be raised from a signal - -- handler. This service is provided by init.c, together with the - -- non-tasking signal handler. - -end System.Interrupt_Management; |