From df62c1c110e8532b995b23540b7e3695729c0779 Mon Sep 17 00:00:00 2001 From: Jing Yu Date: Thu, 5 Nov 2009 15:11:04 -0800 Subject: Check in gcc sources for prebuilt toolchains in Eclair. --- gcc-4.2.1/gcc/ada/s-tpopsp-solaris.adb | 109 +++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 gcc-4.2.1/gcc/ada/s-tpopsp-solaris.adb (limited to 'gcc-4.2.1/gcc/ada/s-tpopsp-solaris.adb') diff --git a/gcc-4.2.1/gcc/ada/s-tpopsp-solaris.adb b/gcc-4.2.1/gcc/ada/s-tpopsp-solaris.adb new file mode 100644 index 000000000..176b186ae --- /dev/null +++ b/gcc-4.2.1/gcc/ada/s-tpopsp-solaris.adb @@ -0,0 +1,109 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- +-- -- +-- S Y S T E M . T A S K _ P R I M I T I V E S . O P E R A T I O N S . -- +-- S P E C I F I C -- +-- -- +-- 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 is a version for Solaris native threads + +separate (System.Task_Primitives.Operations) +package body Specific is + + ---------------- + -- Initialize -- + ---------------- + + procedure Initialize (Environment_Task : Task_Id) is + pragma Unreferenced (Environment_Task); + Result : Interfaces.C.int; + begin + Result := thr_keycreate (ATCB_Key'Access, System.Null_Address); + pragma Assert (Result = 0); + end Initialize; + + ------------------- + -- Is_Valid_Task -- + ------------------- + + function Is_Valid_Task return Boolean is + Unknown_Task : aliased System.Address; + Result : Interfaces.C.int; + begin + Result := thr_getspecific (ATCB_Key, Unknown_Task'Unchecked_Access); + pragma Assert (Result = 0); + return Unknown_Task /= System.Null_Address; + end Is_Valid_Task; + + --------- + -- Set -- + --------- + + procedure Set (Self_Id : Task_Id) is + Result : Interfaces.C.int; + begin + Result := thr_setspecific (ATCB_Key, To_Address (Self_Id)); + pragma Assert (Result = 0); + end Set; + + ---------- + -- Self -- + ---------- + + -- To make Ada tasks and C threads interoperate better, we have + -- added some functionality to Self. Suppose a C main program + -- (with threads) calls an Ada procedure and the Ada procedure + -- calls the tasking run-time system. Eventually, a call will be + -- made to self. Since the call is not coming from an Ada task, + -- there will be no corresponding ATCB. + + -- What we do in Self is to catch references that do not come + -- from recognized Ada tasks, and create an ATCB for the calling + -- thread. + + -- The new ATCB will be "detached" from the normal Ada task + -- master hierarchy, much like the existing implicitly created + -- signal-server tasks. + + function Self return Task_Id is + Result : Interfaces.C.int; + Self_Id : aliased System.Address; + begin + Result := thr_getspecific (ATCB_Key, Self_Id'Unchecked_Access); + pragma Assert (Result = 0); + + if Self_Id = System.Null_Address then + return Register_Foreign_Thread; + else + return To_Task_Id (Self_Id); + end if; + end Self; + +end Specific; -- cgit v1.2.3