+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- 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: 1.2.12.1 $
--- --
--- Copyright (C) 1991-2001 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. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- This is a GNU/Linux (GNU/LinuxThreads) 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 char is Interfaces.C.char;
- 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");
-
- EAGAIN : constant := 11;
- EINTR : constant := 4;
- EINVAL : constant := 22;
- ENOMEM : constant := 12;
- EPERM : constant := 1;
- ETIMEDOUT : constant := 110;
-
- -------------
- -- Signals --
- -------------
-
- Max_Interrupt : constant := 63;
- 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
- SIGFPE : constant := 8; -- floating point exception
- SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
- SIGBUS : constant := 7; -- bus error
- SIGSEGV : constant := 11; -- segmentation violation
- 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 := 10; -- user defined signal 1
- SIGUSR2 : constant := 12; -- user defined signal 2
- SIGCLD : constant := 17; -- alias for SIGCHLD
- SIGCHLD : constant := 17; -- child status change
- SIGPWR : constant := 30; -- power-fail restart
- SIGWINCH : constant := 28; -- window size change
- SIGURG : constant := 23; -- urgent condition on IO channel
- SIGPOLL : constant := 29; -- pollable event occurred
- SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
- SIGLOST : constant := 29; -- File lock lost
- SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
- SIGTSTP : constant := 20; -- user stop requested from tty
- SIGCONT : constant := 18; -- stopped process has been continued
- SIGTTIN : constant := 21; -- background tty read attempted
- SIGTTOU : constant := 22; -- background tty write attempted
- SIGVTALRM : constant := 26; -- virtual timer expired
- SIGPROF : constant := 27; -- profiling timer expired
- SIGXCPU : constant := 24; -- CPU time limit exceeded
- SIGXFSZ : constant := 25; -- filesize limit exceeded
- SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
- SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
- SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
- SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
- SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
-
- SIGADAABORT : constant := SIGABRT;
- -- Change this if you want to use another signal for task abort.
- -- SIGTERM might be a good one.
-
- type Signal_Set is array (Natural range <>) of Signal;
-
- Unmasked : constant Signal_Set := (
- SIGTRAP,
- -- To enable debugging on multithreaded applications, mark SIGTRAP to
- -- be kept unmasked.
-
- SIGBUS,
-
- SIGTTIN, SIGTTOU, SIGTSTP,
- -- Keep these three signals unmasked so that background processes
- -- and IO behaves as normal "C" applications
-
- SIGPROF,
- -- To avoid confusing the profiler
-
- SIGKILL, SIGSTOP,
- -- These two signals actually cannot be masked;
- -- POSIX simply won't allow it.
-
- SIGLTHRRES, SIGLTHRCAN, SIGLTHRDBG);
- -- These three signals are used by GNU/LinuxThreads starting from
- -- glibc 2.1 (future 2.2).
-
- Reserved : constant Signal_Set :=
- -- I am not sure why the following two signals are reserved.
- -- I guess they are not supported by this version of GNU/Linux.
- (SIGVTALRM, SIGUNUSED);
-
- type sigset_t is private;
-
- 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 union_type_3 is new String (1 .. 116);
- type siginfo_t is record
- si_signo : int;
- si_code : int;
- si_errno : int;
- X_data : union_type_3;
- end record;
- pragma Convention (C, siginfo_t);
-
- type struct_sigaction is record
- sa_handler : System.Address;
- sa_mask : sigset_t;
- sa_flags : unsigned_long;
- sa_restorer : System.Address;
- end record;
- pragma Convention (C, struct_sigaction);
- type struct_sigaction_ptr is access all struct_sigaction;
-
- type Machine_State is record
- eip : unsigned_long;
- ebx : unsigned_long;
- esp : unsigned_long;
- ebp : unsigned_long;
- esi : unsigned_long;
- edi : unsigned_long;
- end record;
- type Machine_State_Ptr is access all Machine_State;
-
- SIG_BLOCK : constant := 0;
- SIG_UNBLOCK : constant := 1;
- SIG_SETMASK : constant := 2;
-
- SIG_DFL : constant := 0;
- SIG_IGN : constant := 1;
-
- function sigaction
- (sig : Signal;
- act : struct_sigaction_ptr;
- oact : struct_sigaction_ptr) return int;
- pragma Import (C, sigaction, "sigaction");
-
- ----------
- -- Time --
- ----------
-
- type timespec is private;
-
- 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);
-
- function gettimeofday
- (tv : access struct_timeval;
- tz : System.Address := System.Null_Address) return int;
- pragma Import (C, gettimeofday, "gettimeofday");
-
- -------------------------
- -- Priority Scheduling --
- -------------------------
-
- SCHED_OTHER : constant := 0;
- SCHED_FIFO : constant := 1;
- SCHED_RR : constant := 2;
-
- -------------
- -- 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;
-
- -----------
- -- Stack --
- -----------
-
- function Get_Stack_Base (thread : pthread_t) return Address;
- pragma Inline (Get_Stack_Base);
- -- This is a dummy procedure to share some GNULLI files
-
- ---------------------------------------
- -- 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");
-
- 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, "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 --
- --------------------------
-
- type struct_sched_param is record
- sched_priority : int; -- scheduling priority
- 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_setschedpolicy
- (attr : access pthread_attr_t;
- policy : int) return int;
- pragma Import
- (C, pthread_attr_setschedpolicy, "pthread_attr_setschedpolicy");
-
- 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, "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");
-
-private
-
- type sigset_t is array (0 .. 31) of unsigned_long;
- pragma Convention (C, sigset_t);
- for sigset_t'Size use 1024;
- -- This is for GNU libc version 2 but should be backward compatible with
- -- other libc where sigset_t is smaller.
-
- type pid_t is new int;
-
- type time_t is new long;
-
- type timespec is record
- tv_sec : time_t;
- tv_nsec : long;
- end record;
- pragma Convention (C, timespec);
-
- type struct_timeval is record
- tv_sec : time_t;
- tv_usec : time_t;
- end record;
- pragma Convention (C, struct_timeval);
-
- type pthread_attr_t is record
- detachstate : int;
- schedpolicy : int;
- schedparam : struct_sched_param;
- inheritsched : int;
- scope : int;
- guardsize : size_t;
- stackaddr_set : int;
- stackaddr : System.Address;
- stacksize : size_t;
- end record;
- pragma Convention (C_Pass_By_Copy, pthread_attr_t);
-
- type pthread_condattr_t is record
- dummy : int;
- end record;
- pragma Convention (C, pthread_condattr_t);
-
- type pthread_mutexattr_t is record
- mutexkind : int;
- end record;
- pragma Convention (C, pthread_mutexattr_t);
-
- type pthread_t is new unsigned_long;
-
- type struct_pthread_queue is record
- head : System.Address;
- tail : System.Address;
- end record;
- pragma Convention (C, struct_pthread_queue);
-
- type pthread_mutex_t is record
- m_spinlock : int;
- m_count : int;
- m_owner : System.Address;
- m_kind : int;
- m_waiting : struct_pthread_queue;
- end record;
- pragma Convention (C, pthread_mutex_t);
-
- type pthread_cond_t is record
- c_spinlock : int;
- c_waiting : struct_pthread_queue;
- end record;
- pragma Convention (C, pthread_cond_t);
-
- type pthread_key_t is new unsigned;
-
-end System.OS_Interface;
projects / msp430-gcc.git / blobdiff