1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . O S _ I N T E R F A C E --
9 -- Copyright (C) 1991-1994, Florida State University --
10 -- Copyright (C) 1995-2011, Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 3, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. --
19 -- As a special exception under Section 7 of GPL version 3, you are granted --
20 -- additional permissions described in the GCC Runtime Library Exception, --
21 -- version 3.1, as published by the Free Software Foundation. --
23 -- You should have received a copy of the GNU General Public License and --
24 -- a copy of the GCC Runtime Library Exception along with this program; --
25 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
26 -- <http://www.gnu.org/licenses/>. --
28 -- GNARL was developed by the GNARL team at Florida State University. --
29 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
31 ------------------------------------------------------------------------------
33 -- This is a Solaris (native) version of this package
35 -- This package includes all direct interfaces to OS services
36 -- that are needed by the tasking run-time (libgnarl).
38 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
39 -- Preelaborate. This package is designed to be a bottom-level (leaf) package.
43 with Ada.Unchecked_Conversion;
45 package System.OS_Interface is
48 pragma Linker_Options ("-lposix4");
49 pragma Linker_Options ("-lthread");
51 subtype int is Interfaces.C.int;
52 subtype short is Interfaces.C.short;
53 subtype long is Interfaces.C.long;
54 subtype unsigned is Interfaces.C.unsigned;
55 subtype unsigned_short is Interfaces.C.unsigned_short;
56 subtype unsigned_long is Interfaces.C.unsigned_long;
57 subtype unsigned_char is Interfaces.C.unsigned_char;
58 subtype plain_char is Interfaces.C.plain_char;
59 subtype size_t is Interfaces.C.size_t;
65 function errno return int;
66 pragma Import (C, errno, "__get_errno");
68 EAGAIN : constant := 11;
69 EINTR : constant := 4;
70 EINVAL : constant := 22;
71 ENOMEM : constant := 12;
72 ETIME : constant := 62;
73 ETIMEDOUT : constant := 145;
79 Max_Interrupt : constant := 45;
80 type Signal is new int range 0 .. Max_Interrupt;
81 for Signal'Size use int'Size;
83 SIGHUP : constant := 1; -- hangup
84 SIGINT : constant := 2; -- interrupt (rubout)
85 SIGQUIT : constant := 3; -- quit (ASCD FS)
86 SIGILL : constant := 4; -- illegal instruction (not reset)
87 SIGTRAP : constant := 5; -- trace trap (not reset)
88 SIGIOT : constant := 6; -- IOT instruction
89 SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
90 SIGEMT : constant := 7; -- EMT instruction
91 SIGFPE : constant := 8; -- floating point exception
92 SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
93 SIGBUS : constant := 10; -- bus error
94 SIGSEGV : constant := 11; -- segmentation violation
95 SIGSYS : constant := 12; -- bad argument to system call
96 SIGPIPE : constant := 13; -- write on a pipe with no one to read it
97 SIGALRM : constant := 14; -- alarm clock
98 SIGTERM : constant := 15; -- software termination signal from kill
99 SIGUSR1 : constant := 16; -- user defined signal 1
100 SIGUSR2 : constant := 17; -- user defined signal 2
101 SIGCLD : constant := 18; -- alias for SIGCHLD
102 SIGCHLD : constant := 18; -- child status change
103 SIGPWR : constant := 19; -- power-fail restart
104 SIGWINCH : constant := 20; -- window size change
105 SIGURG : constant := 21; -- urgent condition on IO channel
106 SIGPOLL : constant := 22; -- pollable event occurred
107 SIGIO : constant := 22; -- I/O possible (Solaris SIGPOLL alias)
108 SIGSTOP : constant := 23; -- stop (cannot be caught or ignored)
109 SIGTSTP : constant := 24; -- user stop requested from tty
110 SIGCONT : constant := 25; -- stopped process has been continued
111 SIGTTIN : constant := 26; -- background tty read attempted
112 SIGTTOU : constant := 27; -- background tty write attempted
113 SIGVTALRM : constant := 28; -- virtual timer expired
114 SIGPROF : constant := 29; -- profiling timer expired
115 SIGXCPU : constant := 30; -- CPU time limit exceeded
116 SIGXFSZ : constant := 31; -- filesize limit exceeded
117 SIGWAITING : constant := 32; -- process's lwps blocked (Solaris)
118 SIGLWP : constant := 33; -- used by thread library (Solaris)
119 SIGFREEZE : constant := 34; -- used by CPR (Solaris)
120 SIGTHAW : constant := 35; -- used by CPR (Solaris)
121 SIGCANCEL : constant := 36; -- thread cancellation signal (libthread)
123 type Signal_Set is array (Natural range <>) of Signal;
125 Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
127 -- Following signals should not be disturbed.
128 -- See c-posix-signals.c in FLORIST.
130 Reserved : constant Signal_Set :=
131 (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV);
133 type sigset_t is private;
135 function sigaddset (set : access sigset_t; sig : Signal) return int;
136 pragma Import (C, sigaddset, "sigaddset");
138 function sigdelset (set : access sigset_t; sig : Signal) return int;
139 pragma Import (C, sigdelset, "sigdelset");
141 function sigfillset (set : access sigset_t) return int;
142 pragma Import (C, sigfillset, "sigfillset");
144 function sigismember (set : access sigset_t; sig : Signal) return int;
145 pragma Import (C, sigismember, "sigismember");
147 function sigemptyset (set : access sigset_t) return int;
148 pragma Import (C, sigemptyset, "sigemptyset");
150 type union_type_3 is new String (1 .. 116);
151 type siginfo_t is record
155 X_data : union_type_3;
157 pragma Convention (C, siginfo_t);
159 -- The types mcontext_t and gregset_t are part of the ucontext_t
160 -- information, which is specific to Solaris2.4 for SPARC
161 -- The ucontext_t info seems to be used by the handler
162 -- for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or
163 -- a Constraint_Error (bad pointer). The original code that did this
164 -- is suspect, so it is not clear whether we really need this part of
165 -- the signal context information, or perhaps something else.
166 -- More analysis is needed, after which these declarations may need to
169 type greg_t is new int;
171 type gregset_t is array (0 .. 18) of greg_t;
173 type union_type_2 is new String (1 .. 128);
174 type record_type_1 is record
175 fpu_fr : union_type_2;
176 fpu_q : System.Address;
178 fpu_qcnt : unsigned_char;
179 fpu_q_entrysize : unsigned_char;
180 fpu_en : unsigned_char;
182 pragma Convention (C, record_type_1);
184 type array_type_7 is array (Integer range 0 .. 20) of long;
185 type mcontext_t is record
187 gwins : System.Address;
188 fpregs : record_type_1;
189 filler : array_type_7;
191 pragma Convention (C, mcontext_t);
193 type record_type_2 is record
194 ss_sp : System.Address;
198 pragma Convention (C, record_type_2);
200 type array_type_8 is array (Integer range 0 .. 22) of long;
201 type ucontext_t is record
202 uc_flags : unsigned_long;
203 uc_link : System.Address;
204 uc_sigmask : sigset_t;
205 uc_stack : record_type_2;
206 uc_mcontext : mcontext_t;
207 uc_filler : array_type_8;
209 pragma Convention (C, ucontext_t);
211 type Signal_Handler is access procedure
213 info : access siginfo_t;
214 context : access ucontext_t);
216 type union_type_1 is new plain_char;
217 type array_type_2 is array (Integer range 0 .. 1) of int;
218 type struct_sigaction is record
220 sa_handler : System.Address;
222 sa_resv : array_type_2;
224 pragma Convention (C, struct_sigaction);
225 type struct_sigaction_ptr is access all struct_sigaction;
227 SIG_BLOCK : constant := 1;
228 SIG_UNBLOCK : constant := 2;
229 SIG_SETMASK : constant := 3;
231 SIG_DFL : constant := 0;
232 SIG_IGN : constant := 1;
236 act : struct_sigaction_ptr;
237 oact : struct_sigaction_ptr) return int;
238 pragma Import (C, sigaction, "sigaction");
244 type timespec is private;
246 type clockid_t is private;
248 CLOCK_REALTIME : constant clockid_t;
250 function clock_gettime
251 (clock_id : clockid_t; tp : access timespec) return int;
252 pragma Import (C, clock_gettime, "clock_gettime");
254 function clock_getres
255 (clock_id : clockid_t; res : access timespec) return int;
256 pragma Import (C, clock_getres, "clock_getres");
258 function To_Duration (TS : timespec) return Duration;
259 pragma Inline (To_Duration);
261 function To_Timespec (D : Duration) return timespec;
262 pragma Inline (To_Timespec);
268 type pid_t is private;
270 function kill (pid : pid_t; sig : Signal) return int;
271 pragma Import (C, kill, "kill");
273 function getpid return pid_t;
274 pragma Import (C, getpid, "getpid");
280 type Thread_Body is access
281 function (arg : System.Address) return System.Address;
282 pragma Convention (C, Thread_Body);
284 function Thread_Body_Access is new
285 Ada.Unchecked_Conversion (System.Address, Thread_Body);
287 THR_DETACHED : constant := 64;
288 THR_BOUND : constant := 1;
289 THR_NEW_LWP : constant := 2;
290 USYNC_THREAD : constant := 0;
292 type thread_t is new unsigned;
293 subtype Thread_Id is thread_t;
294 -- These types should be commented ???
296 function To_thread_t is new Ada.Unchecked_Conversion (Integer, thread_t);
298 type mutex_t is limited private;
300 type cond_t is limited private;
302 type thread_key_t is private;
305 (stack_base : System.Address;
307 start_routine : Thread_Body;
308 arg : System.Address;
310 new_thread : access thread_t) return int;
311 pragma Import (C, thr_create, "thr_create");
313 function thr_min_stack return size_t;
314 pragma Import (C, thr_min_stack, "thr_min_stack");
316 function thr_self return thread_t;
317 pragma Import (C, thr_self, "thr_self");
320 (mutex : access mutex_t;
322 arg : System.Address) return int;
323 pragma Import (C, mutex_init, "mutex_init");
325 function mutex_destroy (mutex : access mutex_t) return int;
326 pragma Import (C, mutex_destroy, "mutex_destroy");
328 function mutex_lock (mutex : access mutex_t) return int;
329 pragma Import (C, mutex_lock, "mutex_lock");
331 function mutex_unlock (mutex : access mutex_t) return int;
332 pragma Import (C, mutex_unlock, "mutex_unlock");
335 (cond : access cond_t;
337 arg : int) return int;
338 pragma Import (C, cond_init, "cond_init");
341 (cond : access cond_t; mutex : access mutex_t) return int;
342 pragma Import (C, cond_wait, "cond_wait");
344 function cond_timedwait
345 (cond : access cond_t;
346 mutex : access mutex_t;
347 abstime : access timespec) return int;
348 pragma Import (C, cond_timedwait, "cond_timedwait");
350 function cond_signal (cond : access cond_t) return int;
351 pragma Import (C, cond_signal, "cond_signal");
353 function cond_destroy (cond : access cond_t) return int;
354 pragma Import (C, cond_destroy, "cond_destroy");
356 function thr_setspecific
357 (key : thread_key_t; value : System.Address) return int;
358 pragma Import (C, thr_setspecific, "thr_setspecific");
360 function thr_getspecific
362 value : access System.Address) return int;
363 pragma Import (C, thr_getspecific, "thr_getspecific");
365 function thr_keycreate
366 (key : access thread_key_t; destructor : System.Address) return int;
367 pragma Import (C, thr_keycreate, "thr_keycreate");
369 function thr_setprio (thread : thread_t; priority : int) return int;
370 pragma Import (C, thr_setprio, "thr_setprio");
372 procedure thr_exit (status : System.Address);
373 pragma Import (C, thr_exit, "thr_exit");
375 function thr_setconcurrency (new_level : int) return int;
376 pragma Import (C, thr_setconcurrency, "thr_setconcurrency");
378 function sigwait (set : access sigset_t; sig : access Signal) return int;
379 pragma Import (C, sigwait, "__posix_sigwait");
381 function thr_kill (thread : thread_t; sig : Signal) return int;
382 pragma Import (C, thr_kill, "thr_kill");
384 function thr_sigsetmask
386 set : access sigset_t;
387 oset : access sigset_t) return int;
388 pragma Import (C, thr_sigsetmask, "thr_sigsetmask");
390 function pthread_sigmask
392 set : access sigset_t;
393 oset : access sigset_t) return int;
394 pragma Import (C, pthread_sigmask, "thr_sigsetmask");
396 function thr_suspend (target_thread : thread_t) return int;
397 pragma Import (C, thr_suspend, "thr_suspend");
399 function thr_continue (target_thread : thread_t) return int;
400 pragma Import (C, thr_continue, "thr_continue");
403 pragma Import (C, thr_yield, "thr_yield");
409 P_PID : constant := 0;
410 P_LWPID : constant := 8;
412 PC_GETCID : constant := 0;
413 PC_GETCLINFO : constant := 1;
414 PC_SETPARMS : constant := 2;
415 PC_GETPARMS : constant := 3;
416 PC_ADMIN : constant := 4;
418 PC_CLNULL : constant := -1;
420 RT_NOCHANGE : constant := -1;
421 RT_TQINF : constant := -2;
422 RT_TQDEF : constant := -3;
424 PC_CLNMSZ : constant := 16;
426 PC_VERSION : constant := 1;
428 type lwpid_t is new int;
430 type pri_t is new short;
432 type id_t is new long;
434 P_MYID : constant := -1;
435 -- The specified LWP or process is the current one
437 type struct_pcinfo is record
439 pc_clname : String (1 .. PC_CLNMSZ);
442 pragma Convention (C, struct_pcinfo);
444 type struct_pcparms is record
450 pragma Convention (C, struct_pcparms);
457 arg : System.Address) return Interfaces.C.long;
458 pragma Import (C, priocntl, "__priocntl");
460 function lwp_self return lwpid_t;
461 pragma Import (C, lwp_self, "_lwp_self");
463 type processorid_t is new int;
464 type processorid_t_ptr is access all processorid_t;
466 -- Constants for function processor_bind
468 PBIND_QUERY : constant processorid_t := -2;
469 -- The processor bindings are not changed
471 PBIND_NONE : constant processorid_t := -1;
472 -- The processor bindings of the specified LWPs are cleared
474 -- Flags for function p_online
476 PR_OFFLINE : constant int := 1;
477 -- Processor is offline, as quiet as possible
479 PR_ONLINE : constant int := 2;
482 PR_STATUS : constant int := 3;
483 -- Value passed to p_online to request status
485 function p_online (processorid : processorid_t; flag : int) return int;
486 pragma Import (C, p_online, "p_online");
488 function processor_bind
491 proc_id : processorid_t;
492 obind : processorid_t_ptr) return int;
493 pragma Import (C, processor_bind, "processor_bind");
495 type psetid_t is new int;
497 function pset_create (pset : access psetid_t) return int;
498 pragma Import (C, pset_create, "pset_create");
502 proc_id : processorid_t;
503 opset : access psetid_t) return int;
504 pragma Import (C, pset_assign, "pset_assign");
510 opset : access psetid_t) return int;
511 pragma Import (C, pset_bind, "pset_bind");
513 procedure pthread_init;
514 -- Dummy procedure to share s-intman.adb with other Solaris targets
518 type array_type_1 is array (0 .. 3) of unsigned_long;
519 type sigset_t is record
520 X_X_sigbits : array_type_1;
522 pragma Convention (C, sigset_t);
524 type pid_t is new long;
526 type time_t is new long;
528 type timespec is record
532 pragma Convention (C, timespec);
534 type clockid_t is new int;
535 CLOCK_REALTIME : constant clockid_t := 0;
537 type array_type_9 is array (0 .. 3) of unsigned_char;
538 type record_type_3 is record
540 Xtype : unsigned_long;
542 pragma Convention (C, record_type_3);
544 type mutex_t is record
545 flags : record_type_3;
546 lock : String (1 .. 8);
547 data : String (1 .. 8);
549 pragma Convention (C, mutex_t);
551 type cond_t is record
553 Xtype : unsigned_long;
554 data : String (1 .. 8);
556 pragma Convention (C, cond_t);
558 type thread_key_t is new unsigned;
560 end System.OS_Interface;