From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/ada/exp_smem.ads | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 gcc/ada/exp_smem.ads (limited to 'gcc/ada/exp_smem.ads') diff --git a/gcc/ada/exp_smem.ads b/gcc/ada/exp_smem.ads new file mode 100644 index 000000000..d17382551 --- /dev/null +++ b/gcc/ada/exp_smem.ads @@ -0,0 +1,59 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- E X P _ S M E M -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1998-2008, Free Software Foundation, Inc. -- +-- -- +-- 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 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 COPYING3. If not, go to -- +-- http://www.gnu.org/licenses for a complete copy of the license. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains routines involved in the required expansions for +-- handling shared memory accesses for variables in Shared_Passive packages. + +-- See detailed documentation in System.Shared_Storage spec for a full +-- description of the approach that is taken for handling distributed +-- shared memory. This expansion unit in the compiler is responsible +-- for generating the calls to routines in System.Shared_Storage. + +with Types; use Types; +package Exp_Smem is + + procedure Expand_Shared_Passive_Variable (N : Node_Id); + -- N is the identifier for a shared passive variable. This routine is + -- responsible for determining if this is an assigned to N, or a + -- reference to N, and generating the required calls to the shared + -- memory read/write procedures. + + procedure Add_Shared_Var_Lock_Procs (N : Node_Id); + -- The argument is a protected subprogram call, before it is rewritten + -- by Exp_Ch9.Build_Protected_Subprogram_Call. This routine, which is + -- called only in the case of an external call to a protected object + -- that has Is_Shared_Passive set, deals with installing the required + -- global lock calls for this case. It also generates the necessary + -- read/write calls for the protected object within the lock region. + + function Make_Shared_Var_Procs (N : Node_Id) return Node_Id; + -- N is the node for the declaration of a shared passive variable. + -- This procedure constructs an instantiation of + -- System.Shared_Storage.Shared_Var_Procs that contains the read and + -- assignment procedures for the shared memory variable. + -- See System.Shared_Storage for a full description of these procedures + -- and how they are used. The last inserted node is returned. + +end Exp_Smem; -- cgit v1.2.3