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------------------------------------------------------------------------------ -- -- -- 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) 1991-1994, Florida State University -- -- Copyright (C) 1995-2009, 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, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, 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 Solaris (native) version of this package -- This package includes 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 Ada.Unchecked_Conversion; package System.OS_Interface is pragma Preelaborate; pragma Linker_Options ("-lposix4"); pragma Linker_Options ("-lthread"); 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"); EAGAIN : constant := 11; EINTR : constant := 4; EINVAL : constant := 22; ENOMEM : constant := 12; ETIME : constant := 62; ETIMEDOUT : constant := 145; ------------- -- Signals -- ------------- Max_Interrupt : constant := 45; 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 SIGWAITING : constant := 32; -- process's lwps blocked (Solaris) SIGLWP : constant := 33; -- used by thread library (Solaris) SIGFREEZE : constant := 34; -- used by CPR (Solaris) SIGTHAW : constant := 35; -- used by CPR (Solaris) SIGCANCEL : constant := 36; -- thread cancellation signal (libthread) type Signal_Set is array (Natural range <>) of Signal; Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF); -- Following signals should not be disturbed. -- See c-posix-signals.c in FLORIST. Reserved : constant Signal_Set := (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV); 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); -- The types mcontext_t and gregset_t are part of the ucontext_t -- information, which is specific to Solaris2.4 for SPARC -- The ucontext_t info seems to be used by the handler -- for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or -- a Constraint_Error (bad pointer). The original code that did this -- is suspect, so it is not clear whether we really need this part of -- the signal context information, or perhaps something else. -- More analysis is needed, after which these declarations may need to -- be changed. type greg_t is new int; type gregset_t is array (0 .. 18) of greg_t; type union_type_2 is new String (1 .. 128); type record_type_1 is record fpu_fr : union_type_2; fpu_q : System.Address; fpu_fsr : unsigned; fpu_qcnt : unsigned_char; fpu_q_entrysize : unsigned_char; fpu_en : unsigned_char; end record; pragma Convention (C, record_type_1); type array_type_7 is array (Integer range 0 .. 20) of long; type mcontext_t is record gregs : gregset_t; gwins : System.Address; fpregs : record_type_1; filler : array_type_7; end record; pragma Convention (C, mcontext_t); type record_type_2 is record ss_sp : System.Address; ss_size : int; ss_flags : int; end record; pragma Convention (C, record_type_2); type array_type_8 is array (Integer range 0 .. 22) of long; type ucontext_t is record uc_flags : unsigned_long; uc_link : System.Address; uc_sigmask : sigset_t; uc_stack : record_type_2; uc_mcontext : mcontext_t; uc_filler : array_type_8; end record; pragma Convention (C, ucontext_t); type Signal_Handler is access procedure (signo : Signal; info : access siginfo_t; context : access ucontext_t); type union_type_1 is new plain_char; 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) return int; pragma Import (C, sigaction, "sigaction"); ---------- -- Time -- ---------- type timespec is private; type clockid_t is private; CLOCK_REALTIME : constant clockid_t; 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; res : 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); ------------- -- 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; pragma Convention (C, Thread_Body); function Thread_Body_Access is new Ada.Unchecked_Conversion (System.Address, Thread_Body); THR_DETACHED : constant := 64; THR_BOUND : constant := 1; THR_NEW_LWP : constant := 2; USYNC_THREAD : constant := 0; type thread_t is new unsigned; subtype Thread_Id is thread_t; -- These types should be commented ??? function To_thread_t is new Ada.Unchecked_Conversion (Integer, thread_t); type mutex_t is limited private; type cond_t is limited private; type thread_key_t is private; function thr_create (stack_base : System.Address; stack_size : size_t; start_routine : Thread_Body; arg : System.Address; flags : int; new_thread : access thread_t) return int; pragma Import (C, thr_create, "thr_create"); function thr_min_stack return size_t; pragma Import (C, thr_min_stack, "thr_min_stack"); function thr_self return thread_t; pragma Import (C, thr_self, "thr_self"); function mutex_init (mutex : access mutex_t; mtype : int; arg : System.Address) return int; pragma Import (C, mutex_init, "mutex_init"); function mutex_destroy (mutex : access mutex_t) return int; pragma Import (C, mutex_destroy, "mutex_destroy"); function mutex_lock (mutex : access mutex_t) return int; pragma Import (C, mutex_lock, "mutex_lock"); function mutex_unlock (mutex : access mutex_t) return int; pragma Import (C, mutex_unlock, "mutex_unlock"); function cond_init (cond : access cond_t; ctype : int; arg : int) return int; pragma Import (C, cond_init, "cond_init"); function cond_wait (cond : access cond_t; mutex : access mutex_t) return int; pragma Import (C, cond_wait, "cond_wait"); function cond_timedwait (cond : access cond_t; mutex : access mutex_t; abstime : access timespec) return int; pragma Import (C, cond_timedwait, "cond_timedwait"); function cond_signal (cond : access cond_t) return int; pragma Import (C, cond_signal, "cond_signal"); function cond_destroy (cond : access cond_t) return int; pragma Import (C, cond_destroy, "cond_destroy"); function thr_setspecific (key : thread_key_t; value : System.Address) return int; pragma Import (C, thr_setspecific, "thr_setspecific"); function thr_getspecific (key : thread_key_t; value : access System.Address) return int; pragma Import (C, thr_getspecific, "thr_getspecific"); function thr_keycreate (key : access thread_key_t; destructor : System.Address) return int; pragma Import (C, thr_keycreate, "thr_keycreate"); function thr_setprio (thread : thread_t; priority : int) return int; pragma Import (C, thr_setprio, "thr_setprio"); procedure thr_exit (status : System.Address); pragma Import (C, thr_exit, "thr_exit"); function thr_setconcurrency (new_level : int) return int; pragma Import (C, thr_setconcurrency, "thr_setconcurrency"); function sigwait (set : access sigset_t; sig : access Signal) return int; pragma Import (C, sigwait, "__posix_sigwait"); function thr_kill (thread : thread_t; sig : Signal) return int; pragma Import (C, thr_kill, "thr_kill"); function thr_sigsetmask (how : int; set : access sigset_t; oset : access sigset_t) return int; pragma Import (C, thr_sigsetmask, "thr_sigsetmask"); function pthread_sigmask (how : int; set : access sigset_t; oset : access sigset_t) return int; pragma Import (C, pthread_sigmask, "thr_sigsetmask"); function thr_suspend (target_thread : thread_t) return int; pragma Import (C, thr_suspend, "thr_suspend"); function thr_continue (target_thread : thread_t) return int; pragma Import (C, thr_continue, "thr_continue"); procedure thr_yield; pragma Import (C, thr_yield, "thr_yield"); --------- -- LWP -- --------- P_PID : constant := 0; P_LWPID : constant := 8; PC_GETCID : constant := 0; PC_GETCLINFO : constant := 1; PC_SETPARMS : constant := 2; PC_GETPARMS : constant := 3; PC_ADMIN : constant := 4; PC_CLNULL : constant := -1; RT_NOCHANGE : constant := -1; RT_TQINF : constant := -2; RT_TQDEF : constant := -3; PC_CLNMSZ : constant := 16; PC_VERSION : constant := 1; type lwpid_t is new int; type pri_t is new short; type id_t is new long; P_MYID : constant := -1; -- The specified LWP or process is the current one type struct_pcinfo is record pc_cid : id_t; pc_clname : String (1 .. PC_CLNMSZ); rt_maxpri : short; end record; pragma Convention (C, struct_pcinfo); type struct_pcparms is record pc_cid : id_t; rt_pri : pri_t; rt_tqsecs : long; rt_tqnsecs : long; end record; pragma Convention (C, struct_pcparms); function priocntl (ver : int; id_type : int; id : lwpid_t; cmd : int; arg : System.Address) return Interfaces.C.long; pragma Import (C, priocntl, "__priocntl"); function lwp_self return lwpid_t; pragma Import (C, lwp_self, "_lwp_self"); type processorid_t is new int; type processorid_t_ptr is access all processorid_t; -- Constants for function processor_bind PBIND_QUERY : constant processorid_t := -2; -- The processor bindings are not changed PBIND_NONE : constant processorid_t := -1; -- The processor bindings of the specified LWPs are cleared -- Flags for function p_online PR_OFFLINE : constant int := 1; -- Processor is offline, as quiet as possible PR_ONLINE : constant int := 2; -- Processor online PR_STATUS : constant int := 3; -- Value passed to p_online to request status function p_online (processorid : processorid_t; flag : int) return int; pragma Import (C, p_online, "p_online"); function processor_bind (id_type : int; id : id_t; proc_id : processorid_t; obind : processorid_t_ptr) return int; pragma Import (C, processor_bind, "processor_bind"); procedure pthread_init; -- Dummy procedure to share s-intman.adb with other Solaris targets private type array_type_1 is array (0 .. 3) of unsigned_long; 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 := 0; type array_type_9 is array (0 .. 3) of unsigned_char; type record_type_3 is record flag : array_type_9; Xtype : unsigned_long; end record; pragma Convention (C, record_type_3); type mutex_t is record flags : record_type_3; lock : String (1 .. 8); data : String (1 .. 8); end record; pragma Convention (C, mutex_t); type cond_t is record flag : array_type_9; Xtype : unsigned_long; data : String (1 .. 8); end record; pragma Convention (C, cond_t); type thread_key_t is new unsigned; end System.OS_Interface;
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