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-4.3.1/gcc/ada/s-osinte-posix.adb | 143 +++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 gcc-4.3.1/gcc/ada/s-osinte-posix.adb (limited to 'gcc-4.3.1/gcc/ada/s-osinte-posix.adb') diff --git a/gcc-4.3.1/gcc/ada/s-osinte-posix.adb b/gcc-4.3.1/gcc/ada/s-osinte-posix.adb new file mode 100644 index 000000000..c6460c2d2 --- /dev/null +++ b/gcc-4.3.1/gcc/ada/s-osinte-posix.adb @@ -0,0 +1,143 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- +-- -- +-- S Y S T E M . O S _ I N T E R F A C E -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1991-1994, Florida State University -- +-- Copyright (C) 1995-2006, AdaCore -- +-- -- +-- 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 GNU/LinuxThreads, Solaris pthread and HP-UX pthread version +-- of this package. + +pragma Polling (Off); +-- Turn off polling, we do not want ATC polling to take place during +-- tasking operations. It causes infinite loops and other problems. + +-- This package encapsulates all direct interfaces to OS services +-- that are needed by children of System. + +with Interfaces.C; use Interfaces.C; +package body System.OS_Interface is + + -------------------- + -- Get_Stack_Base -- + -------------------- + + function Get_Stack_Base (thread : pthread_t) return Address is + pragma Warnings (Off, thread); + + begin + return Null_Address; + end Get_Stack_Base; + + ------------------ + -- pthread_init -- + ------------------ + + procedure pthread_init is + begin + null; + end pthread_init; + + ----------------- + -- To_Duration -- + ----------------- + + function To_Duration (TS : timespec) return Duration is + begin + return Duration (TS.tv_sec) + Duration (TS.tv_nsec) / 10#1#E9; + end To_Duration; + + function To_Duration (TV : struct_timeval) return Duration is + begin + return Duration (TV.tv_sec) + Duration (TV.tv_usec) / 10#1#E6; + end To_Duration; + + ------------------------ + -- To_Target_Priority -- + ------------------------ + + function To_Target_Priority + (Prio : System.Any_Priority) return Interfaces.C.int + is + begin + return Interfaces.C.int (Prio); + end To_Target_Priority; + + ----------------- + -- To_Timespec -- + ----------------- + + function To_Timespec (D : Duration) return timespec is + S : time_t; + F : Duration; + + begin + S := time_t (Long_Long_Integer (D)); + F := D - Duration (S); + + -- If F has negative value due to a round-up, adjust for positive F + -- value. + + if F < 0.0 then + S := S - 1; + F := F + 1.0; + end if; + + return timespec'(tv_sec => S, + tv_nsec => long (Long_Long_Integer (F * 10#1#E9))); + end To_Timespec; + + ---------------- + -- To_Timeval -- + ---------------- + + function To_Timeval (D : Duration) return struct_timeval is + S : time_t; + F : Duration; + + begin + S := time_t (Long_Long_Integer (D)); + F := D - Duration (S); + + -- If F has negative value due to a round-up, adjust for positive F + -- value. + + if F < 0.0 then + S := S - 1; + F := F + 1.0; + end if; + + return + struct_timeval' + (tv_sec => S, + tv_usec => time_t (Long_Long_Integer (F * 10#1#E6))); + end To_Timeval; + +end System.OS_Interface; -- cgit v1.2.3