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diff --git a/gcc/ada/5zosinte.ads b/gcc/ada/5zosinte.ads new file mode 100644 index 00000000000..f0777793005 --- /dev/null +++ b/gcc/ada/5zosinte.ads @@ -0,0 +1,555 @@ +------------------------------------------------------------------------------ +-- -- +-- 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: 1.16 $ +-- -- +-- Copyright (C) 1997-2001 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 VxWorks version of this package. +-- +-- VxWorks does not directly support the needed POSIX routines, but it +-- does have other routines that make it possible to code equivalent +-- POSIX compliant routines. The approach taken is to provide an +-- FSU threads compliant interface. + +-- 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; +with System.VxWorks; +package System.OS_Interface is + pragma Preelaborate; + + 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; + subtype char is Interfaces.C.char; + + ----------- + -- 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 -- + ---------------------------- + + -- In order to support both signal and hardware interrupt handling, + -- the ranges of "interrupt IDs" for the vectored hardware interrupts + -- and the signals are catenated. In other words, the external IDs + -- used to designate signals are relocated beyond the range of the + -- vectored interrupts. The IDs given in Ada.Interrupts.Names should + -- be used to designate signals; vectored interrupts are designated + -- by their interrupt number. + + NSIG : constant := 32; + -- 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 + NSIG; + + SIGILL : constant := 4; -- illegal instruction (not reset) + 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 + + ----------------------------------- + -- 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#; + + -- ANSI args and returns from signal(). + 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); + + function c_signal (sig : Signal; handler : isr_address) return isr_address; + pragma Import (C, c_signal, "signal"); + + function sigwait (set : access sigset_t; sig : access Signal) return int; + pragma Inline (sigwait); + + type sigset_t_ptr is access all sigset_t; + + function pthread_sigmask + (how : int; + set : sigset_t_ptr; + oset : sigset_t_ptr) return int; + pragma Import (C, pthread_sigmask, "sigprocmask"); + + ---------- + -- 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 private; + + CLOCK_REALTIME : constant clockid_t; -- System wide realtime clock + + function To_Duration (TS : timespec) return Duration; + pragma Inline (To_Duration); + + function To_Timespec (D : Duration) return timespec; + pragma Inline (To_Timespec); + + 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"); + + ------------------------- + -- Priority Scheduling -- + ------------------------- + + -- Scheduling policies. + SCHED_FIFO : constant := 1; + SCHED_RR : constant := 2; + SCHED_OTHER : constant := 4; + + ------------- + -- 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 := 0; + PTHREAD_CREATE_JOINABLE : constant := 1; + + function kill (pid : pthread_t; sig : Signal) return int; + pragma Import (C, kill, "kill"); + + -- VxWorks doesn't have getpid; taskIdSelf is the equivalent + -- routine. + function getpid return pthread_t; + pragma Import (C, getpid, "taskIdSelf"); + + --------------------------------- + -- Nonstandard Thread Routines -- + --------------------------------- + + procedure pthread_init; + pragma Inline (pthread_init); + -- Vxworks requires this for the moment. + + function taskIdSelf return pthread_t; + pragma Import (C, taskIdSelf, "taskIdSelf"); + + function taskSuspend (tid : pthread_t) return int; + pragma Import (C, taskSuspend, "taskSuspend"); + + function taskResume (tid : pthread_t) return int; + pragma Import (C, taskResume, "taskResume"); + + function taskIsSuspended (tid : pthread_t) return int; + pragma Import (C, taskIsSuspended, "taskIsSuspended"); + + function taskVarAdd + (tid : pthread_t; + pVar : access System.Address) return int; + pragma Import (C, taskVarAdd, "taskVarAdd"); + + function taskVarDelete + (tid : pthread_t; + pVar : access System.Address) return int; + pragma Import (C, taskVarDelete, "taskVarDelete"); + + function taskVarSet + (tid : pthread_t; + pVar : access System.Address; + value : System.Address) return int; + pragma Import (C, taskVarSet, "taskVarSet"); + + function taskVarGet + (tid : pthread_t; + pVar : access System.Address) return int; + pragma Import (C, taskVarGet, "taskVarGet"); + + function taskInfoGet + (tid : pthread_t; + pTaskDesc : access System.VxWorks.TASK_DESC) return int; + pragma Import (C, taskInfoGet, "taskInfoGet"); + + function taskDelay (ticks : int) return int; + pragma Import (C, taskDelay, "taskDelay"); + + function sysClkRateGet return int; + pragma Import (C, sysClkRateGet, "sysClkRateGet"); + + -------------------------- + -- POSIX.1c Section 11 -- + -------------------------- + + function pthread_mutexattr_init + (attr : access pthread_mutexattr_t) return int; + pragma Inline (pthread_mutexattr_init); + + function pthread_mutexattr_destroy + (attr : access pthread_mutexattr_t) return int; + pragma Inline (pthread_mutexattr_destroy); + + function pthread_mutex_init + (mutex : access pthread_mutex_t; + attr : access pthread_mutexattr_t) return int; + pragma Inline (pthread_mutex_init); + + function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int; + pragma Inline (pthread_mutex_destroy); + + function pthread_mutex_lock (mutex : access pthread_mutex_t) return int; + pragma Inline (pthread_mutex_lock); + + function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int; + pragma Inline (pthread_mutex_unlock); + + function pthread_condattr_init + (attr : access pthread_condattr_t) return int; + pragma Inline (pthread_condattr_init); + + function pthread_condattr_destroy + (attr : access pthread_condattr_t) return int; + pragma Inline (pthread_condattr_destroy); + + function pthread_cond_init + (cond : access pthread_cond_t; + attr : access pthread_condattr_t) return int; + pragma Inline (pthread_cond_init); + + function pthread_cond_destroy (cond : access pthread_cond_t) return int; + pragma Inline (pthread_cond_destroy); + + function pthread_cond_signal (cond : access pthread_cond_t) return int; + pragma Inline (pthread_cond_signal); + + function pthread_cond_wait + (cond : access pthread_cond_t; + mutex : access pthread_mutex_t) return int; + pragma Inline (pthread_cond_wait); + + function pthread_cond_timedwait + (cond : access pthread_cond_t; + mutex : access pthread_mutex_t; + abstime : access timespec) return int; + pragma Inline (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 Inline (pthread_mutexattr_setprotocol); + + function pthread_mutexattr_setprioceiling + (attr : access pthread_mutexattr_t; + prioceiling : int) return int; + pragma Inline (pthread_mutexattr_setprioceiling); + + type struct_sched_param is record + sched_priority : int; + end record; + + function pthread_setschedparam + (thread : pthread_t; + policy : int; + param : access struct_sched_param) return int; + pragma Inline (pthread_setschedparam); + + function sched_yield return int; + pragma Inline (sched_yield); + + function pthread_sched_rr_set_interval (usecs : int) return int; + pragma Inline (pthread_sched_rr_set_interval); + + --------------------------- + -- P1003.1c - Section 16 -- + --------------------------- + + function pthread_attr_init (attr : access pthread_attr_t) return int; + pragma Inline (pthread_attr_init); + + function pthread_attr_destroy (attr : access pthread_attr_t) return int; + pragma Inline (pthread_attr_destroy); + + function pthread_attr_setdetachstate + (attr : access pthread_attr_t; + detachstate : int) return int; + pragma Inline (pthread_attr_setdetachstate); + + function pthread_attr_setstacksize + (attr : access pthread_attr_t; + stacksize : size_t) return int; + pragma Inline (pthread_attr_setstacksize); + + function pthread_attr_setname_np + (attr : access pthread_attr_t; + name : System.Address) return int; + -- In VxWorks tasks, we have a non-portable routine to set the + -- task name. This makes it really convenient for debugging. + pragma Inline (pthread_attr_setname_np); + + function pthread_create + (thread : access pthread_t; + attr : access pthread_attr_t; + start_routine : Thread_Body; + arg : System.Address) return int; + pragma Inline (pthread_create); + + function pthread_detach (thread : pthread_t) return int; + pragma Inline (pthread_detach); + + procedure pthread_exit (status : System.Address); + pragma Inline (pthread_exit); + + function pthread_self return pthread_t; + pragma Inline (pthread_self); + + function pthread_equal (t1 : pthread_t; t2 : pthread_t) return int; + pragma Inline (pthread_equal); + -- be careful not to use "=" on thread_t! + + -------------------------- + -- POSIX.1c Section 17 -- + -------------------------- + + function pthread_setspecific + (key : pthread_key_t; + value : System.Address) return int; + pragma Inline (pthread_setspecific); + + function pthread_getspecific (key : pthread_key_t) return System.Address; + pragma Inline (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 Inline (pthread_key_create); + + -- VxWorks binary semaphores. These are exported for use by the + -- implementation of hardware interrupt handling. + + subtype STATUS is int; + -- Equivalent of the C type STATUS + + OK : constant STATUS := 0; + ERROR : constant STATUS := Interfaces.C."-" (1); + + -- 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; + + type SEM_ID is new long; + -- The VxWorks semaphore ID is an integer which is really just + -- a pointer to a semaphore structure. + + function semBCreate (Options : int; Initial_State : int) return SEM_ID; + -- Create a binary semaphore. Returns ID, or 0 if memory could not + -- be allocated + pragma Import (C, semBCreate, "semBCreate"); + + function semTake (SemID : SEM_ID; Timeout : int) return STATUS; + -- Attempt to take binary semaphore. Error is returned if operation + -- times out + pragma Import (C, semTake, "semTake"); + + function semGive (SemID : SEM_ID) return STATUS; + -- Release one thread blocked on the semaphore + pragma Import (C, semGive, "semGive"); + + function semFlush (SemID : SEM_ID) return STATUS; + -- Release all threads blocked on the semaphore + pragma Import (C, semFlush, "semFlush"); + + function semDelete (SemID : SEM_ID) return STATUS; + -- Delete a semaphore + pragma Import (C, semDelete, "semDelete"); + + +private + -- This interface assumes that "unsigned" and "int" are 32-bit entities. + + type sigset_t is new long; + + type pid_t is new int; + + ERROR_PID : constant pid_t := -1; + + type clockid_t is new int; + CLOCK_REALTIME : constant clockid_t := 0; + + -- Priority ceilings are now implemented in the body of + -- this package. + + type pthread_mutexattr_t is record + Flags : int; -- mutex semaphore creation flags + Prio_Ceiling : int; -- priority ceiling + Protocol : int; + end record; + + type pthread_mutex_t is record + Mutex : SEM_ID; + Protocol : int; + Prio_Ceiling : int; -- priority ceiling of lock + end record; + + type pthread_condattr_t is record + Flags : int; + end record; + + type pthread_cond_t is record + Sem : SEM_ID; -- VxWorks semaphore ID + Waiting : Integer; -- Number of queued tasks waiting + end record; + + type pthread_attr_t is record + Stacksize : size_t; + Detachstate : int; + Priority : int; + Taskname : System.Address; + end record; + + type pthread_t is new long; + + type pthread_key_t is new int; + + -- These are to store the pthread_keys that are created with + -- pthread_key_create. Currently, we only need one key. + + Key_Storage : array (1 .. 10) of aliased System.Address; + Keys_Created : Integer; + + Time_Slice : int; + +end System.OS_Interface; |