New Language: Ada

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45952 138bc75d-0d04-0410-961f-82ee72b054a4

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+------------------------------------------------------------------------------
+--                                                                          --
+--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
+--                                                                          --
+--                   S Y S T E M . O S _ I N T E R F A C E                  --
+--                                                                          --
+--                                  S p e c                                 --
+--                                                                          --
+--                             $Revision: 1.13 $
+--                                                                          --
+--          Copyright (C) 1998-2001, 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,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, 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. It is --
+-- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
+-- State University (http://www.gnat.com).                                  --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is the SGI Pthreads version of this package.
+
+--  This package encapsulates all direct interfaces to OS services
+--  that are needed by children of System.
+
+--  PLEASE DO NOT add any with-clauses to this package
+--  or remove the pragma Elaborate_Body.
+--  It is designed to be a bottom-level (leaf) package.
+
+with Interfaces.C;
+package System.OS_Interface is
+
+   pragma Preelaborate;
+
+   pragma Linker_Options ("-lpthread");
+
+   subtype int            is Interfaces.C.int;
+   subtype short          is Interfaces.C.short;
+   subtype long           is Interfaces.C.long;
+   subtype unsigned       is Interfaces.C.unsigned;
+   subtype unsigned_short is Interfaces.C.unsigned_short;
+   subtype unsigned_long  is Interfaces.C.unsigned_long;
+   subtype unsigned_char  is Interfaces.C.unsigned_char;
+   subtype plain_char     is Interfaces.C.plain_char;
+   subtype size_t         is Interfaces.C.size_t;
+
+   -----------
+   -- Errno --
+   -----------
+
+   function errno return int;
+   pragma Import (C, errno, "__get_errno");
+
+   EINTR     : constant := 4;   --  interrupted system call
+   EAGAIN    : constant := 11;  --  No more processes
+   ENOMEM    : constant := 12;  --  Not enough core
+   EINVAL    : constant := 22;  --  Invalid argument
+   ETIMEDOUT : constant := 145; --  Connection timed out
+
+   -------------
+   -- Signals --
+   -------------
+
+   Max_Interrupt : constant := 64;
+   type Signal is new int range 0 .. Max_Interrupt;
+   for Signal'Size use int'Size;
+
+   SIGHUP     : constant := 1; --  hangup
+   SIGINT     : constant := 2; --  interrupt (rubout)
+   SIGQUIT    : constant := 3; --  quit (ASCD FS)
+   SIGILL     : constant := 4; --  illegal instruction (not reset)
+   SIGTRAP    : constant := 5; --  trace trap (not reset)
+   SIGIOT     : constant := 6; --  IOT instruction
+   SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the
+   --                              future
+   SIGEMT     : constant := 7; --  EMT instruction
+   SIGFPE     : constant := 8; --  floating point exception
+   SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
+   SIGBUS     : constant := 10; --  bus error
+   SIGSEGV    : constant := 11; --  segmentation violation
+   SIGSYS     : constant := 12; --  bad argument to system call
+   SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
+   SIGALRM    : constant := 14; --  alarm clock
+   SIGTERM    : constant := 15; --  software termination signal from kill
+   SIGUSR1    : constant := 16; --  user defined signal 1
+   SIGUSR2    : constant := 17; --  user defined signal 2
+   SIGCLD     : constant := 18; --  alias for SIGCHLD
+   SIGCHLD    : constant := 18; --  child status change
+   SIGPWR     : constant := 19; --  power-fail restart
+   SIGWINCH   : constant := 20; --  window size change
+   SIGURG     : constant := 21; --  urgent condition on IO channel
+   SIGPOLL    : constant := 22; --  pollable event occurred
+   SIGIO      : constant := 22; --  I/O possible (Solaris SIGPOLL alias)
+   SIGSTOP    : constant := 23; --  stop (cannot be caught or ignored)
+   SIGTSTP    : constant := 24; --  user stop requested from tty
+   SIGCONT    : constant := 25; --  stopped process has been continued
+   SIGTTIN    : constant := 26; --  background tty read attempted
+   SIGTTOU    : constant := 27; --  background tty write attempted
+   SIGVTALRM  : constant := 28; --  virtual timer expired
+   SIGPROF    : constant := 29; --  profiling timer expired
+   SIGXCPU    : constant := 30; --  CPU time limit exceeded
+   SIGXFSZ    : constant := 31; --  filesize limit exceeded
+   SIGK32     : constant := 32; --  reserved for kernel (IRIX)
+   SIGCKPT    : constant := 33; --  Checkpoint warning
+   SIGRESTART : constant := 34; --  Restart warning
+   SIGUME     : constant := 35; --  Uncorrectable memory error
+   --  Signals defined for Posix 1003.1c.
+   SIGPTINTR    : constant := 47;
+   SIGPTRESCHED : constant := 48;
+   --  Posix 1003.1b signals
+   SIGRTMIN   : constant := 49; --  Posix 1003.1b signals
+   SIGRTMAX   : constant := 64; --  Posix 1003.1b signals
+
+   type sigset_t is private;
+   type sigset_t_ptr is access all sigset_t;
+
+   function sigaddset (set : access sigset_t; sig : Signal) return int;
+   pragma Import (C, sigaddset, "sigaddset");
+
+   function sigdelset (set : access sigset_t; sig : Signal) return int;
+   pragma Import (C, sigdelset, "sigdelset");
+
+   function sigfillset (set : access sigset_t) return int;
+   pragma Import (C, sigfillset, "sigfillset");
+
+   function sigismember (set : access sigset_t; sig : Signal) return int;
+   pragma Import (C, sigismember, "sigismember");
+
+   function sigemptyset (set : access sigset_t) return int;
+   pragma Import (C, sigemptyset, "sigemptyset");
+
+   type array_type_2 is array (Integer range 0 .. 1) of int;
+   type struct_sigaction is record
+      sa_flags     : int;
+      sa_handler   : System.Address;
+      sa_mask      : sigset_t;
+      sa_resv      : array_type_2;
+   end record;
+   pragma Convention (C, struct_sigaction);
+
+   type struct_sigaction_ptr is access all struct_sigaction;
+
+   SIG_BLOCK   : constant := 1;
+   SIG_UNBLOCK : constant := 2;
+   SIG_SETMASK : constant := 3;
+
+   SIG_DFL : constant := 0;
+   SIG_IGN : constant := 1;
+
+   function sigaction
+     (sig  : Signal;
+      act  : struct_sigaction_ptr;
+      oact : struct_sigaction_ptr := null) return int;
+   pragma Import (C, sigaction, "sigaction");
+
+   ----------
+   -- Time --
+   ----------
+
+   type timespec is private;
+   type timespec_ptr is access all timespec;
+
+   type clockid_t is private;
+
+   CLOCK_REALTIME  : constant clockid_t;
+   CLOCK_SGI_FAST  : constant clockid_t;
+   CLOCK_SGI_CYCLE : constant clockid_t;
+
+   SGI_CYCLECNTR_SIZE : constant := 165;
+
+   function syssgi (request : Interfaces.C.int) return Interfaces.C.ptrdiff_t;
+   pragma Import (C, syssgi, "syssgi");
+
+   function clock_gettime
+     (clock_id : clockid_t;
+      tp       : access timespec) return int;
+   pragma Import (C, clock_gettime, "clock_gettime");
+
+   function clock_getres
+     (clock_id : clockid_t;
+      tp       : access timespec) return int;
+   pragma Import (C, clock_getres, "clock_getres");
+
+   function To_Duration (TS : timespec) return Duration;
+   pragma Inline (To_Duration);
+
+   function To_Timespec (D : Duration) return timespec;
+   pragma Inline (To_Timespec);
+
+   type struct_timeval is private;
+
+   function To_Duration (TV : struct_timeval) return Duration;
+   pragma Inline (To_Duration);
+
+   function To_Timeval (D : Duration) return struct_timeval;
+   pragma Inline (To_Timeval);
+
+   -------------------------
+   -- Priority Scheduling --
+   -------------------------
+
+   SCHED_FIFO  : constant := 1;
+   SCHED_RR    : constant := 2;
+   SCHED_TS    : constant := 3;
+   SCHED_OTHER : constant := 3;
+   SCHED_NP    : constant := 4;
+
+   function sched_get_priority_min (Policy : int) return int;
+   pragma Import (C, sched_get_priority_min, "sched_get_priority_min");
+
+   function sched_get_priority_max (Policy : int) return int;
+   pragma Import (C, sched_get_priority_max, "sched_get_priority_max");
+
+   -------------
+   -- Process --
+   -------------
+
+   type pid_t is private;
+
+   function kill (pid : pid_t; sig : Signal) return int;
+   pragma Import (C, kill, "kill");
+
+   function getpid return pid_t;
+   pragma Import (C, getpid, "getpid");
+
+   -------------
+   -- Threads --
+   -------------
+
+   type Thread_Body is access
+     function (arg : System.Address) return System.Address;
+   type pthread_t           is private;
+   subtype Thread_Id        is pthread_t;
+
+   type pthread_mutex_t     is limited private;
+   type pthread_cond_t      is limited private;
+   type pthread_attr_t      is limited private;
+   type pthread_mutexattr_t is limited private;
+   type pthread_condattr_t  is limited private;
+   type pthread_key_t       is private;
+
+   PTHREAD_CREATE_DETACHED : constant := 1;
+
+   ---------------------------------------
+   -- Nonstandard Thread Initialization --
+   ---------------------------------------
+
+   procedure pthread_init;
+   pragma Inline (pthread_init);
+   --  This is a dummy procedure to share some GNULLI files
+
+   -------------------------
+   -- POSIX.1c  Section 3 --
+   -------------------------
+
+   function sigwait
+     (set : access sigset_t;
+      sig : access Signal) return int;
+   pragma Import (C, sigwait, "sigwait");
+
+   function pthread_kill
+     (thread : pthread_t;
+      sig    : Signal) return int;
+   pragma Import (C, pthread_kill, "pthread_kill");
+
+   function pthread_sigmask
+     (how  : int;
+      set  : sigset_t_ptr;
+      oset : sigset_t_ptr) return int;
+   pragma Import (C, pthread_sigmask, "pthread_sigmask");
+
+   --------------------------
+   -- POSIX.1c  Section 11 --
+   --------------------------
+
+   function pthread_mutexattr_init
+     (attr : access pthread_mutexattr_t) return int;
+   pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
+
+   function pthread_mutexattr_destroy
+     (attr : access pthread_mutexattr_t) return int;
+   pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
+
+   function pthread_mutex_init
+     (mutex : access pthread_mutex_t;
+      attr  : access pthread_mutexattr_t) return int;
+   pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
+
+   function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
+
+   function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
+
+   function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
+
+   function pthread_condattr_init
+     (attr : access pthread_condattr_t) return int;
+   pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
+
+   function pthread_condattr_destroy
+     (attr : access pthread_condattr_t) return int;
+   pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
+
+   function pthread_cond_init
+     (cond : access pthread_cond_t;
+      attr : access pthread_condattr_t) return int;
+   pragma Import (C, pthread_cond_init, "pthread_cond_init");
+
+   function pthread_cond_destroy (cond : access pthread_cond_t) return int;
+   pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
+
+   function pthread_cond_signal (cond : access pthread_cond_t) return int;
+   pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
+
+   function pthread_cond_wait
+     (cond  : access pthread_cond_t;
+      mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
+
+   function pthread_cond_timedwait
+     (cond    : access pthread_cond_t;
+      mutex   : access pthread_mutex_t;
+      abstime : access timespec) return int;
+   pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
+
+   --------------------------
+   -- POSIX.1c  Section 13 --
+   --------------------------
+
+   PTHREAD_PRIO_NONE    : constant := 0;
+   PTHREAD_PRIO_PROTECT : constant := 2;
+   PTHREAD_PRIO_INHERIT : constant := 1;
+
+   function pthread_mutexattr_setprotocol
+     (attr     : access pthread_mutexattr_t;
+      protocol : int) return int;
+   pragma Import (C, pthread_mutexattr_setprotocol);
+
+   function pthread_mutexattr_setprioceiling
+     (attr     : access pthread_mutexattr_t;
+      prioceiling : int) return int;
+   pragma Import (C, pthread_mutexattr_setprioceiling);
+
+   type struct_sched_param is record
+      sched_priority : int;
+   end record;
+   pragma Convention (C, struct_sched_param);
+
+   function pthread_setschedparam
+     (thread : pthread_t;
+      policy : int;
+      param  : access struct_sched_param)
+     return int;
+   pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
+
+   function pthread_attr_setscope
+     (attr            : access pthread_attr_t;
+      contentionscope : int) return int;
+   pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
+
+   function pthread_attr_setinheritsched
+     (attr         : access pthread_attr_t;
+      inheritsched : int) return int;
+   pragma Import
+     (C, pthread_attr_setinheritsched, "pthread_attr_setinheritsched");
+
+   function pthread_attr_setschedpolicy
+     (attr   : access pthread_attr_t;
+      policy : int) return int;
+   pragma Import (C, pthread_attr_setschedpolicy);
+
+   function pthread_attr_setschedparam
+     (attr        : access pthread_attr_t;
+      sched_param : access struct_sched_param)
+     return int;
+   pragma Import (C, pthread_attr_setschedparam, "pthread_attr_setschedparam");
+
+   function sched_yield return int;
+   pragma Import (C, sched_yield, "sched_yield");
+
+   ---------------------------
+   -- P1003.1c - Section 16 --
+   ---------------------------
+
+   function pthread_attr_init (attributes : access pthread_attr_t) return int;
+   pragma Import (C, pthread_attr_init, "pthread_attr_init");
+
+   function pthread_attr_destroy
+     (attributes : access pthread_attr_t) return int;
+   pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
+
+   function pthread_attr_setdetachstate
+     (attr        : access pthread_attr_t;
+      detachstate : int) return int;
+   pragma Import (C, pthread_attr_setdetachstate);
+
+   function pthread_attr_setstacksize
+     (attr      : access pthread_attr_t;
+      stacksize : size_t) return int;
+   pragma Import (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
+
+   function pthread_create
+     (thread        : access pthread_t;
+      attributes    : access pthread_attr_t;
+      start_routine : Thread_Body;
+      arg           : System.Address) return int;
+   pragma Import (C, pthread_create, "pthread_create");
+
+   procedure pthread_exit (status : System.Address);
+   pragma Import (C, pthread_exit, "pthread_exit");
+
+   function pthread_self return pthread_t;
+   pragma Import (C, pthread_self, "pthread_self");
+
+   --------------------------
+   -- POSIX.1c  Section 17 --
+   --------------------------
+
+   function pthread_setspecific
+     (key   : pthread_key_t;
+      value : System.Address) return int;
+   pragma Import (C, pthread_setspecific, "pthread_setspecific");
+
+   function pthread_getspecific (key : pthread_key_t) return System.Address;
+   pragma Import (C, pthread_getspecific, "pthread_getspecific");
+
+   type destructor_pointer is access procedure (arg : System.Address);
+
+   function pthread_key_create
+     (key        : access pthread_key_t;
+      destructor : destructor_pointer) return int;
+   pragma Import (C, pthread_key_create, "pthread_key_create");
+
+   ---------------------------------------------------------------
+   --  Non portable SGI 6.5 additions to the pthread interface  --
+   --  must be executed from within the context of a system     --
+   --  scope task                                               --
+   ---------------------------------------------------------------
+
+   function pthread_setrunon_np (cpu : int) return int;
+   pragma Import (C, pthread_setrunon_np, "pthread_setrunon_np");
+
+private
+
+   type array_type_1 is array (Integer range 0 .. 3) of unsigned;
+   type sigset_t is record
+      X_X_sigbits : array_type_1;
+   end record;
+   pragma Convention (C, sigset_t);
+
+   type pid_t is new long;
+
+   type time_t is new long;
+
+   type timespec is record
+      tv_sec  : time_t;
+      tv_nsec : long;
+   end record;
+   pragma Convention (C, timespec);
+
+   type clockid_t is new int;
+   CLOCK_REALTIME  : constant clockid_t := 1;
+   CLOCK_SGI_CYCLE : constant clockid_t := 2;
+   CLOCK_SGI_FAST  : constant clockid_t := 3;
+
+   type struct_timeval is record
+      tv_sec  : time_t;
+      tv_usec : time_t;
+   end record;
+   pragma Convention (C, struct_timeval);
+
+   type array_type_9 is array (Integer range 0 .. 4) of long;
+   type pthread_attr_t is record
+      X_X_D : array_type_9;
+   end record;
+   pragma Convention (C, pthread_attr_t);
+
+   type array_type_8 is array (Integer range 0 .. 1) of long;
+   type pthread_condattr_t is record
+      X_X_D : array_type_8;
+   end record;
+   pragma Convention (C, pthread_condattr_t);
+
+   type array_type_7 is array (Integer range 0 .. 1) of long;
+   type pthread_mutexattr_t is record
+      X_X_D : array_type_7;
+   end record;
+   pragma Convention (C, pthread_mutexattr_t);
+
+   type pthread_t is new unsigned;
+
+   type array_type_10 is array (Integer range 0 .. 7) of long;
+   type pthread_mutex_t is record
+      X_X_D : array_type_10;
+   end record;
+   pragma Convention (C, pthread_mutex_t);
+
+   type array_type_11 is array (Integer range 0 .. 7) of long;
+   type pthread_cond_t is record
+      X_X_D : array_type_11;
+   end record;
+   pragma Convention (C, pthread_cond_t);
+
+   type pthread_key_t is new int;
+
+end System.OS_Interface;