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/s-tasinf-linux.ads | 101 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 gcc/ada/s-tasinf-linux.ads (limited to 'gcc/ada/s-tasinf-linux.ads') diff --git a/gcc/ada/s-tasinf-linux.ads b/gcc/ada/s-tasinf-linux.ads new file mode 100644 index 000000000..db274f89f --- /dev/null +++ b/gcc/ada/s-tasinf-linux.ads @@ -0,0 +1,101 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . T A S K _ I N F O -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2007-2009, 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. -- +-- -- +-- 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 -- +-- . -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains the definitions and routines associated with the +-- implementation and use of the Task_Info pragma. It is specialized +-- appropriately for targets that make use of this pragma. + +-- Note: the compiler generates direct calls to this interface, via Rtsfind. +-- Any changes to this interface may require corresponding compiler changes. + +-- This unit may be used directly from an application program by providing +-- an appropriate WITH, and the interface can be expected to remain stable. + +-- This is the GNU/Linux version of this module + +with System.OS_Interface; + +package System.Task_Info is + pragma Preelaborate; + pragma Elaborate_Body; + -- To ensure that a body is allowed + + -- Windows provides a way to define the ideal processor to use for a given + -- thread. The ideal processor is not necessarily the one that will be used + -- by the OS but the OS will always try to schedule this thread to the + -- specified processor if it is available. + + -- The Task_Info pragma: + + -- pragma Task_Info (EXPRESSION); + + -- allows the specification on a task by task basis of a value of type + -- System.Task_Info.Task_Info_Type to be passed to a task when it is + -- created. The specification of this type, and the effect on the task + -- that is created is target dependent. + + -- The Task_Info pragma appears within a task definition (compare the + -- definition and implementation of pragma Priority). If no such pragma + -- appears, then the value Unspecified_Task_Info is passed. If a pragma + -- is present, then it supplies an alternative value. If the argument of + -- the pragma is a discriminant reference, then the value can be set on + -- a task by task basis by supplying the appropriate discriminant value. + + -- Note that this means that the type used for Task_Info_Type must be + -- suitable for use as a discriminant (i.e. a scalar or access type). + + ----------------------- + -- Thread Attributes -- + ----------------------- + + subtype CPU_Set is System.OS_Interface.cpu_set_t; + + Any_CPU : constant CPU_Set := (bits => (others => True)); + No_CPU : constant CPU_Set := (bits => (others => False)); + + Invalid_CPU_Number : exception; + -- Raised when an invalid CPU mask has been specified + -- i.e. An empty CPU set + + type Thread_Attributes is record + CPU_Affinity : aliased CPU_Set := Any_CPU; + end record; + + Default_Thread_Attributes : constant Thread_Attributes := (others => <>); + + type Task_Info_Type is access all Thread_Attributes; + + Unspecified_Task_Info : constant Task_Info_Type := null; + + function Number_Of_Processors return Positive; + -- Returns the number of processors on the running host + +end System.Task_Info; -- cgit v1.2.3