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Diffstat (limited to 'gcc/ada/s-osinte-vxworks.ads')
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diff --git a/gcc/ada/s-osinte-vxworks.ads b/gcc/ada/s-osinte-vxworks.ads new file mode 100644 index 00000000000..7888cc18e68 --- /dev/null +++ b/gcc/ada/s-osinte-vxworks.ads @@ -0,0 +1,371 @@ +------------------------------------------------------------------------------ +-- -- +-- 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 -- +-- -- +-- Copyright (C) 1991-1994, Florida State University -- +-- Copyright (C) 1995-2004, 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. -- +-- 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 children of System. + +-- 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; + +package System.OS_Interface is + pragma Preelaborate; + + subtype int is Interfaces.C.int; + subtype short is Short_Integer; + type long is new Long_Integer; + type unsigned_long is mod 2 ** 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 := 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; + + 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#; + + 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"); + + type t_id is new long; + subtype Thread_Id is t_id; + + function kill (pid : t_id; sig : Signal) return int; + pragma Import (C, kill, "kill"); + + -- VxWorks doesn't have getpid; taskIdSelf is the equivalent + -- routine. + function getpid return t_id; + pragma Import (C, getpid, "taskIdSelf"); + + ---------- + -- 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"); + + type ULONG is new unsigned_long; + + procedure tickSet (ticks : ULONG); + pragma Import (C, tickSet, "tickSet"); + + function tickGet return ULONG; + pragma Import (C, tickGet, "tickGet"); + + ----------------------------------------------------- + -- Convenience routine to convert between VxWorks -- + -- priority and Ada priority. -- + ----------------------------------------------------- + + function To_VxWorks_Priority (Priority : in int) return int; + pragma Inline (To_VxWorks_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 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 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"); + + function taskDelay (ticks : int) return int; + procedure taskDelay (ticks : int); + pragma Import (C, taskDelay, "taskDelay"); + + function sysClkRateGet return int; + pragma Import (C, sysClkRateGet, "sysClkRateGet"); + + -- Option flags for taskSpawn + + VX_UNBREAKABLE : constant := 16#0002#; + VX_FP_TASK : constant := 16#0008#; + 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 kernelTimeSlice (ticks : int) return int; + pragma Import (C, kernelTimeSlice, "kernelTimeSlice"); + + 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; + + type SEM_ID is new System.Address; + -- 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; + -- Create a binary semaphore. Return ID, or 0 if memory could not + -- be allocated. + pragma Import (C, semBCreate, "semBCreate"); + + function semMCreate (options : int) return SEM_ID; + pragma Import (C, semMCreate, "semMCreate"); + + function semDelete (Sem : SEM_ID) return int; + -- Delete a semaphore + pragma Import (C, semDelete, "semDelete"); + + function semGive (Sem : SEM_ID) return int; + pragma Import (C, semGive, "semGive"); + + function semTake (Sem : SEM_ID; timeout : int) return int; + -- Attempt to take binary semaphore. Error is returned if operation + -- times out + pragma Import (C, semTake, "semTake"); + + function semFlush (SemID : SEM_ID) return STATUS; + -- Release all threads blocked on the semaphore + pragma Import (C, semFlush, "semFlush"); + + function taskLock return int; + pragma Import (C, taskLock, "taskLock"); + + function taskUnlock return int; + pragma Import (C, taskUnlock, "taskUnlock"); + +private + 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; + +end System.OS_Interface; |