--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnarl/s-osinte__vxworks.ads	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,523 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                  GNAT 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                                --
+--                                                                          --
+--            Copyright (C) 1991-2017, Florida State University             --
+--          Copyright (C) 1995-2017, 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 3,  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.                                     --
+--                                                                          --
+-- 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    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University.       --
+-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is the VxWorks version of this package
+
+--  This package encapsulates all direct interfaces to OS services that are
+--  needed by the tasking run-time (libgnarl).
+
+--  PLEASE DO NOT add any with-clauses to this package or remove the pragma
+--  Preelaborate. This package is designed to be a bottom-level (leaf) package.
+
+with Interfaces.C;
+with System.VxWorks;
+with System.VxWorks.Ext;
+with System.Multiprocessors;
+
+package System.OS_Interface is
+   pragma Preelaborate;
+
+   subtype int             is Interfaces.C.int;
+   subtype unsigned        is Interfaces.C.unsigned;
+   subtype short           is Short_Integer;
+   type unsigned_int       is mod 2 ** int'Size;
+   type long               is new Long_Integer;
+   type unsigned_long      is mod 2 ** long'Size;
+   type long_long          is new Long_Long_Integer;
+   type unsigned_long_long is mod 2 ** long_long'Size;
+   type size_t             is mod 2 ** Standard'Address_Size;
+
+   -----------
+   -- Errno --
+   -----------
+
+   function errno return int;
+   pragma Import (C, errno, "errnoGet");
+
+   EINTR     : constant := 4;
+   EAGAIN    : constant := 35;
+   ENOMEM    : constant := 12;
+   EINVAL    : constant := 22;
+   ETIMEDOUT : constant := 60;
+
+   FUNC_ERR  : constant := -1;
+
+   ----------------------------
+   -- Signals and interrupts --
+   ----------------------------
+
+   NSIG : constant := 64;
+   --  Number of signals on the target OS
+   type Signal is new int range 0 .. Interfaces.C."-" (NSIG, 1);
+
+   Max_HW_Interrupt : constant := System.VxWorks.Num_HW_Interrupts - 1;
+   type HW_Interrupt is new int range 0 .. Max_HW_Interrupt;
+
+   Max_Interrupt : constant := Max_HW_Interrupt;
+   subtype Interrupt_Range is Natural range 0 .. Max_HW_Interrupt;
+   --  For s-interr
+
+   --  Signals common to Vxworks 5.x and 6.x
+
+   SIGILL    : constant :=  4; --  illegal instruction (not reset when caught)
+   SIGABRT   : constant :=  6; --  used by abort, replace SIGIOT in the future
+   SIGFPE    : constant :=  8; --  floating point exception
+   SIGBUS    : constant := 10; --  bus error
+   SIGSEGV   : constant := 11; --  segmentation violation
+
+   --  Signals specific to VxWorks 6.x
+
+   SIGHUP    : constant :=  1; --  hangup
+   SIGINT    : constant :=  2; --  interrupt
+   SIGQUIT   : constant :=  3; --  quit
+   SIGTRAP   : constant :=  5; --  trace trap (not reset when caught)
+   SIGEMT    : constant :=  7; --  EMT instruction
+   SIGKILL   : constant :=  9; --  kill
+   SIGFMT    : constant := 12; --  STACK FORMAT ERROR (not posix)
+   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
+   SIGCNCL   : constant := 16; --  pthreads cancellation signal
+   SIGSTOP   : constant := 17; --  sendable stop signal not from tty
+   SIGTSTP   : constant := 18; --  stop signal from tty
+   SIGCONT   : constant := 19; --  continue a stopped process
+   SIGCHLD   : constant := 20; --  to parent on child stop or exit
+   SIGTTIN   : constant := 21; --  to readers pgrp upon background tty read
+   SIGTTOU   : constant := 22; --  like TTIN for output
+
+   SIGRES1   : constant := 23; --  reserved signal number (Not POSIX)
+   SIGRES2   : constant := 24; --  reserved signal number (Not POSIX)
+   SIGRES3   : constant := 25; --  reserved signal number (Not POSIX)
+   SIGRES4   : constant := 26; --  reserved signal number (Not POSIX)
+   SIGRES5   : constant := 27; --  reserved signal number (Not POSIX)
+   SIGRES6   : constant := 28; --  reserved signal number (Not POSIX)
+   SIGRES7   : constant := 29; --  reserved signal number (Not POSIX)
+
+   SIGUSR1   : constant := 30; --  user defined signal 1
+   SIGUSR2   : constant := 31; --  user defined signal 2
+
+   SIGPOLL   : constant := 32; --  pollable event
+   SIGPROF   : constant := 33; --  profiling timer expired
+   SIGSYS    : constant := 34; --  bad system call
+   SIGURG    : constant := 35; --  high bandwidth data is available at socket
+   SIGVTALRM : constant := 36; --  virtual timer expired
+   SIGXCPU   : constant := 37; --  CPU time limit exceeded
+   SIGXFSZ   : constant := 38; --  file size time limit exceeded
+
+   SIGEVTS   : constant := 39; --  signal event thread send
+   SIGEVTD   : constant := 40; --  signal event thread delete
+
+   SIGRTMIN  : constant := 48; --  Realtime signal min
+   SIGRTMAX  : constant := 63; --  Realtime signal max
+
+   -----------------------------------
+   -- Signal processing definitions --
+   -----------------------------------
+
+   --  The how in sigprocmask()
+
+   SIG_BLOCK   : constant := 1;
+   SIG_UNBLOCK : constant := 2;
+   SIG_SETMASK : constant := 3;
+
+   --  The sa_flags in struct sigaction
+
+   SA_SIGINFO : constant := 16#0002#;
+   SA_ONSTACK : constant := 16#0004#;
+
+   SIG_DFL : constant := 0;
+   SIG_IGN : constant := 1;
+
+   type sigset_t is private;
+
+   type struct_sigaction is record
+      sa_handler : System.Address;
+      sa_mask    : sigset_t;
+      sa_flags   : int;
+   end record;
+   pragma Convention (C, struct_sigaction);
+   type struct_sigaction_ptr is access all struct_sigaction;
+
+   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");
+
+   function sigaction
+     (sig  : Signal;
+      act  : struct_sigaction_ptr;
+      oact : struct_sigaction_ptr) return int;
+   pragma Import (C, sigaction, "sigaction");
+
+   type isr_address is access procedure (sig : int);
+   pragma Convention (C, isr_address);
+
+   function c_signal (sig : Signal; handler : isr_address) return isr_address;
+   pragma Import (C, c_signal, "signal");
+
+   function pthread_sigmask
+     (how  : int;
+      set  : access sigset_t;
+      oset : access sigset_t) return int;
+   pragma Import (C, pthread_sigmask, "sigprocmask");
+
+   subtype t_id is System.VxWorks.Ext.t_id;
+   subtype Thread_Id is t_id;
+   --  Thread_Id and t_id are VxWorks identifiers for tasks. This value,
+   --  although represented as a Long_Integer, is in fact an address. With
+   --  some BSPs, this address can have a value sufficiently high that the
+   --  Thread_Id becomes negative: this should not be considered as an error.
+
+   function kill (pid : t_id; sig : Signal) return int;
+   pragma Inline (kill);
+
+   function getpid return t_id renames System.VxWorks.Ext.getpid;
+
+   function Task_Stop (tid : t_id) return int
+     renames System.VxWorks.Ext.Task_Stop;
+   --  If we are in the kernel space, stop the task whose t_id is given in
+   --  parameter in such a way that it can be examined by the debugger. This
+   --  typically maps to taskSuspend on VxWorks 5 and to taskStop on VxWorks 6.
+
+   function Task_Cont (tid : t_id) return int
+     renames System.VxWorks.Ext.Task_Cont;
+   --  If we are in the kernel space, continue the task whose t_id is given
+   --  in parameter if it has been stopped previously to be examined by the
+   --  debugger (e.g. by taskStop). It typically maps to taskResume on VxWorks
+   --  5 and to taskCont on VxWorks 6.
+
+   function Int_Lock return int renames System.VxWorks.Ext.Int_Lock;
+   --  If we are in the kernel space, lock interrupts. It typically maps to
+   --  intLock.
+
+   function Int_Unlock (Old : int) return int
+     renames System.VxWorks.Ext.Int_Unlock;
+   --  If we are in the kernel space, unlock interrupts. It typically maps to
+   --  intUnlock. The parameter Old is only used on PowerPC where it contains
+   --  the returned value from Int_Lock (the old MPSR).
+
+   ----------
+   -- Time --
+   ----------
+
+   type time_t is new unsigned_long;
+
+   type timespec is record
+      ts_sec  : time_t;
+      ts_nsec : long;
+   end record;
+   pragma Convention (C, timespec);
+
+   type clockid_t is new int;
+
+   function To_Duration (TS : timespec) return Duration;
+   pragma Inline (To_Duration);
+
+   function To_Timespec (D : Duration) return timespec;
+   pragma Inline (To_Timespec);
+   --  Convert a Duration value to a timespec value. Note that in VxWorks,
+   --  timespec is always non-negative (since time_t is defined above as
+   --  unsigned long). This means that there is a potential problem if a
+   --  negative argument is passed for D. However, in actual usage, the
+   --  value of the input argument D is always non-negative, so no problem
+   --  arises in practice.
+
+   function To_Clock_Ticks (D : Duration) return int;
+   --  Convert a duration value (in seconds) into clock ticks
+
+   function clock_gettime
+     (clock_id : clockid_t; tp : access timespec) return int;
+   pragma Import (C, clock_gettime, "clock_gettime");
+
+   ----------------------
+   -- Utility Routines --
+   ----------------------
+
+   function To_VxWorks_Priority (Priority : int) return int;
+   pragma Inline (To_VxWorks_Priority);
+   --  Convenience routine to convert between VxWorks priority and Ada priority
+
+   --------------------------
+   -- VxWorks specific API --
+   --------------------------
+
+   subtype STATUS is int;
+   --  Equivalent of the C type STATUS
+
+   OK    : constant STATUS := 0;
+   ERROR : constant STATUS := Interfaces.C.int (-1);
+
+   function taskIdVerify (tid : t_id) return STATUS;
+   pragma Import (C, taskIdVerify, "taskIdVerify");
+
+   function taskIdSelf return t_id;
+   pragma Import (C, taskIdSelf, "taskIdSelf");
+
+   function taskOptionsGet (tid : t_id; pOptions : access int) return int;
+   pragma Import (C, taskOptionsGet, "taskOptionsGet");
+
+   function taskSuspend (tid : t_id) return int;
+   pragma Import (C, taskSuspend, "taskSuspend");
+
+   function taskResume (tid : t_id) return int;
+   pragma Import (C, taskResume, "taskResume");
+
+   function taskIsSuspended (tid : t_id) return int;
+   pragma Import (C, taskIsSuspended, "taskIsSuspended");
+
+   function taskDelay (ticks : int) return int;
+   pragma Import (C, taskDelay, "taskDelay");
+
+   function sysClkRateGet return int;
+   pragma Import (C, sysClkRateGet, "sysClkRateGet");
+
+   --  VxWorks 5.x specific functions
+   --  Must not be called from run-time for versions that do not support
+   --  taskVarLib: eg VxWorks 6 RTPs
+
+   function taskVarAdd
+     (tid : t_id; pVar : access System.Address) return int;
+   pragma Import (C, taskVarAdd, "taskVarAdd");
+
+   function taskVarDelete
+     (tid : t_id; pVar : access System.Address) return int;
+   pragma Import (C, taskVarDelete, "taskVarDelete");
+
+   function taskVarSet
+     (tid   : t_id;
+      pVar  : access System.Address;
+      value : System.Address) return int;
+   pragma Import (C, taskVarSet, "taskVarSet");
+
+   function taskVarGet
+     (tid  : t_id;
+      pVar : access System.Address) return int;
+   pragma Import (C, taskVarGet, "taskVarGet");
+
+   --  VxWorks 6.x specific functions
+
+   --  Can only be called from the VxWorks 6 run-time libary that supports
+   --  tlsLib, and not by the VxWorks 6.6 SMP library
+
+   function tlsKeyCreate return int;
+   pragma Import (C, tlsKeyCreate, "tlsKeyCreate");
+
+   function tlsValueGet (key : int) return System.Address;
+   pragma Import (C, tlsValueGet, "tlsValueGet");
+
+   function tlsValueSet (key : int; value : System.Address) return STATUS;
+   pragma Import (C, tlsValueSet, "tlsValueSet");
+
+   --  Option flags for taskSpawn
+
+   VX_UNBREAKABLE    : constant := 16#0002#;
+   VX_FP_PRIVATE_ENV : constant := 16#0080#;
+   VX_NO_STACK_FILL  : constant := 16#0100#;
+
+   function taskSpawn
+     (name          : System.Address;  --  Pointer to task name
+      priority      : int;
+      options       : int;
+      stacksize     : size_t;
+      start_routine : System.Address;
+      arg1          : System.Address;
+      arg2          : int := 0;
+      arg3          : int := 0;
+      arg4          : int := 0;
+      arg5          : int := 0;
+      arg6          : int := 0;
+      arg7          : int := 0;
+      arg8          : int := 0;
+      arg9          : int := 0;
+      arg10         : int := 0) return t_id;
+   pragma Import (C, taskSpawn, "taskSpawn");
+
+   procedure taskDelete (tid : t_id);
+   pragma Import (C, taskDelete, "taskDelete");
+
+   function Set_Time_Slice (ticks : int) return int
+     renames System.VxWorks.Ext.Set_Time_Slice;
+   --  Calls kernelTimeSlice under VxWorks 5.x, VxWorks 653, or in VxWorks 6
+   --  kernel apps. Returns ERROR for RTPs, VxWorks 5 /CERT
+
+   function taskPriorityGet (tid : t_id; pPriority : access int) return int;
+   pragma Import (C, taskPriorityGet, "taskPriorityGet");
+
+   function taskPrioritySet (tid : t_id; newPriority : int) return int;
+   pragma Import (C, taskPrioritySet, "taskPrioritySet");
+
+   --  Semaphore creation flags
+
+   SEM_Q_FIFO         : constant := 0;
+   SEM_Q_PRIORITY     : constant := 1;
+   SEM_DELETE_SAFE    : constant := 4;  -- only valid for binary semaphore
+   SEM_INVERSION_SAFE : constant := 8;  -- only valid for binary semaphore
+
+   --  Semaphore initial state flags
+
+   SEM_EMPTY : constant := 0;
+   SEM_FULL  : constant := 1;
+
+   --  Semaphore take (semTake) time constants
+
+   WAIT_FOREVER : constant := -1;
+   NO_WAIT      : constant := 0;
+
+   --  Error codes (errno). The lower level 16 bits are the error code, with
+   --  the upper 16 bits representing the module number in which the error
+   --  occurred. By convention, the module number is 0 for UNIX errors. VxWorks
+   --  reserves module numbers 1-500, with the remaining module numbers being
+   --  available for user applications.
+
+   M_objLib                 : constant := 61 * 2**16;
+   --  semTake() failure with ticks = NO_WAIT
+   S_objLib_OBJ_UNAVAILABLE : constant := M_objLib + 2;
+   --  semTake() timeout with ticks > NO_WAIT
+   S_objLib_OBJ_TIMEOUT     : constant := M_objLib + 4;
+
+   subtype SEM_ID is System.VxWorks.Ext.SEM_ID;
+   --  typedef struct semaphore *SEM_ID;
+
+   --  We use two different kinds of VxWorks semaphores: mutex and binary
+   --  semaphores. A null ID is returned when a semaphore cannot be created.
+
+   function semBCreate (options : int; initial_state : int) return SEM_ID;
+   pragma Import (C, semBCreate, "semBCreate");
+   --  Create a binary semaphore. Return ID, or 0 if memory could not
+   --  be allocated.
+
+   function semMCreate (options : int) return SEM_ID;
+   pragma Import (C, semMCreate, "semMCreate");
+
+   function semDelete (Sem : SEM_ID) return int
+     renames System.VxWorks.Ext.semDelete;
+   --  Delete a semaphore
+
+   function semGive (Sem : SEM_ID) return int;
+   pragma Import (C, semGive, "semGive");
+
+   function semTake (Sem : SEM_ID; timeout : int) return int;
+   pragma Import (C, semTake, "semTake");
+   --  Attempt to take binary semaphore.  Error is returned if operation
+   --  times out
+
+   function semFlush (SemID : SEM_ID) return STATUS;
+   pragma Import (C, semFlush, "semFlush");
+   --  Release all threads blocked on the semaphore
+
+   ------------------------------------------------------------
+   --   Binary Semaphore Wrapper to Support interrupt Tasks  --
+   ------------------------------------------------------------
+
+   type Binary_Semaphore_Id is new Long_Integer;
+
+   function Binary_Semaphore_Create return Binary_Semaphore_Id;
+   pragma Inline (Binary_Semaphore_Create);
+
+   function Binary_Semaphore_Delete (ID : Binary_Semaphore_Id) return int;
+   pragma Inline (Binary_Semaphore_Delete);
+
+   function Binary_Semaphore_Obtain (ID : Binary_Semaphore_Id) return int;
+   pragma Inline (Binary_Semaphore_Obtain);
+
+   function Binary_Semaphore_Release (ID : Binary_Semaphore_Id) return int;
+   pragma Inline (Binary_Semaphore_Release);
+
+   function Binary_Semaphore_Flush (ID : Binary_Semaphore_Id) return int;
+   pragma Inline (Binary_Semaphore_Flush);
+
+   ------------------------------------------------------------
+   -- Hardware Interrupt Wrappers to Support Interrupt Tasks --
+   ------------------------------------------------------------
+
+   type Interrupt_Handler is access procedure (parameter : System.Address);
+   pragma Convention (C, Interrupt_Handler);
+
+   type Interrupt_Vector is new System.Address;
+
+   function Interrupt_Connect
+     (Vector    : Interrupt_Vector;
+      Handler   : Interrupt_Handler;
+      Parameter : System.Address := System.Null_Address) return int;
+   pragma Inline (Interrupt_Connect);
+   --  Use this to set up an user handler. The routine installs a user handler
+   --  which is invoked after the OS has saved enough context for a high-level
+   --  language routine to be safely invoked.
+
+   function Interrupt_Context return int;
+   pragma Inline (Interrupt_Context);
+   --  Return 1 if executing in an interrupt context; return 0 if executing in
+   --  a task context.
+
+   function Interrupt_Number_To_Vector (intNum : int) return Interrupt_Vector;
+   pragma Inline (Interrupt_Number_To_Vector);
+   --  Convert a logical interrupt number to the hardware interrupt vector
+   --  number used to connect the interrupt.
+
+   --------------------------------
+   -- Processor Affinity for SMP --
+   --------------------------------
+
+   function taskCpuAffinitySet (tid : t_id; CPU : int) return int
+     renames System.VxWorks.Ext.taskCpuAffinitySet;
+   --  For SMP run-times the affinity to CPU.
+   --  For uniprocessor systems return ERROR status.
+
+   function taskMaskAffinitySet (tid : t_id; CPU_Set : unsigned) return int
+     renames System.VxWorks.Ext.taskMaskAffinitySet;
+   --  For SMP run-times the affinity to CPU_Set.
+   --  For uniprocessor systems return ERROR status.
+
+   ---------------------
+   -- Multiprocessors --
+   ---------------------
+
+   function Current_CPU return Multiprocessors.CPU;
+   --  Return the id of the current CPU
+
+private
+   type pid_t is new int;
+
+   ERROR_PID : constant pid_t := -1;
+
+   type sigset_t is new System.VxWorks.Ext.sigset_t;
+end System.OS_Interface;