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) 1995-2009, Free Software Foundation, Inc. --
12 -- GNARL 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 2, or (at your option) any later ver- --
15 -- sion. GNARL 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. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNARL; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
21 -- Boston, MA 02110-1301, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNARL was developed by the GNARL team at Florida State University. --
31 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
33 ------------------------------------------------------------------------------
35 -- This is a Solaris (native) version of this package
37 -- This package includes all direct interfaces to OS services
38 -- that are needed by the tasking run-time (libgnarl).
40 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
41 -- Preelaborate. This package is designed to be a bottom-level (leaf) package.
45 with Ada.Unchecked_Conversion;
47 package System.OS_Interface is
50 pragma Linker_Options ("-lposix4");
51 pragma Linker_Options ("-lthread");
53 subtype int is Interfaces.C.int;
54 subtype short is Interfaces.C.short;
55 subtype long is Interfaces.C.long;
56 subtype unsigned is Interfaces.C.unsigned;
57 subtype unsigned_short is Interfaces.C.unsigned_short;
58 subtype unsigned_long is Interfaces.C.unsigned_long;
59 subtype unsigned_char is Interfaces.C.unsigned_char;
60 subtype plain_char is Interfaces.C.plain_char;
61 subtype size_t is Interfaces.C.size_t;
67 function errno return int;
68 pragma Import (C, errno, "__get_errno");
70 EAGAIN : constant := 11;
71 EINTR : constant := 4;
72 EINVAL : constant := 22;
73 ENOMEM : constant := 12;
74 ETIME : constant := 62;
75 ETIMEDOUT : constant := 145;
81 Max_Interrupt : constant := 45;
82 type Signal is new int range 0 .. Max_Interrupt;
83 for Signal'Size use int'Size;
85 SIGHUP : constant := 1; -- hangup
86 SIGINT : constant := 2; -- interrupt (rubout)
87 SIGQUIT : constant := 3; -- quit (ASCD FS)
88 SIGILL : constant := 4; -- illegal instruction (not reset)
89 SIGTRAP : constant := 5; -- trace trap (not reset)
90 SIGIOT : constant := 6; -- IOT instruction
91 SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
92 SIGEMT : constant := 7; -- EMT instruction
93 SIGFPE : constant := 8; -- floating point exception
94 SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
95 SIGBUS : constant := 10; -- bus error
96 SIGSEGV : constant := 11; -- segmentation violation
97 SIGSYS : constant := 12; -- bad argument to system call
98 SIGPIPE : constant := 13; -- write on a pipe with no one to read it
99 SIGALRM : constant := 14; -- alarm clock
100 SIGTERM : constant := 15; -- software termination signal from kill
101 SIGUSR1 : constant := 16; -- user defined signal 1
102 SIGUSR2 : constant := 17; -- user defined signal 2
103 SIGCLD : constant := 18; -- alias for SIGCHLD
104 SIGCHLD : constant := 18; -- child status change
105 SIGPWR : constant := 19; -- power-fail restart
106 SIGWINCH : constant := 20; -- window size change
107 SIGURG : constant := 21; -- urgent condition on IO channel
108 SIGPOLL : constant := 22; -- pollable event occurred
109 SIGIO : constant := 22; -- I/O possible (Solaris SIGPOLL alias)
110 SIGSTOP : constant := 23; -- stop (cannot be caught or ignored)
111 SIGTSTP : constant := 24; -- user stop requested from tty
112 SIGCONT : constant := 25; -- stopped process has been continued
113 SIGTTIN : constant := 26; -- background tty read attempted
114 SIGTTOU : constant := 27; -- background tty write attempted
115 SIGVTALRM : constant := 28; -- virtual timer expired
116 SIGPROF : constant := 29; -- profiling timer expired
117 SIGXCPU : constant := 30; -- CPU time limit exceeded
118 SIGXFSZ : constant := 31; -- filesize limit exceeded
119 SIGWAITING : constant := 32; -- process's lwps blocked (Solaris)
120 SIGLWP : constant := 33; -- used by thread library (Solaris)
121 SIGFREEZE : constant := 34; -- used by CPR (Solaris)
122 SIGTHAW : constant := 35; -- used by CPR (Solaris)
123 SIGCANCEL : constant := 36; -- thread cancellation signal (libthread)
125 type Signal_Set is array (Natural range <>) of Signal;
127 Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
129 -- Following signals should not be disturbed.
130 -- See c-posix-signals.c in FLORIST.
132 Reserved : constant Signal_Set :=
133 (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV);
135 type sigset_t is private;
137 function sigaddset (set : access sigset_t; sig : Signal) return int;
138 pragma Import (C, sigaddset, "sigaddset");
140 function sigdelset (set : access sigset_t; sig : Signal) return int;
141 pragma Import (C, sigdelset, "sigdelset");
143 function sigfillset (set : access sigset_t) return int;
144 pragma Import (C, sigfillset, "sigfillset");
146 function sigismember (set : access sigset_t; sig : Signal) return int;
147 pragma Import (C, sigismember, "sigismember");
149 function sigemptyset (set : access sigset_t) return int;
150 pragma Import (C, sigemptyset, "sigemptyset");
152 type union_type_3 is new String (1 .. 116);
153 type siginfo_t is record
157 X_data : union_type_3;
159 pragma Convention (C, siginfo_t);
161 -- The types mcontext_t and gregset_t are part of the ucontext_t
162 -- information, which is specific to Solaris2.4 for SPARC
163 -- The ucontext_t info seems to be used by the handler
164 -- for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or
165 -- a Constraint_Error (bad pointer). The original code that did this
166 -- is suspect, so it is not clear whether we really need this part of
167 -- the signal context information, or perhaps something else.
168 -- More analysis is needed, after which these declarations may need to
171 type greg_t is new int;
173 type gregset_t is array (0 .. 18) of greg_t;
175 type union_type_2 is new String (1 .. 128);
176 type record_type_1 is record
177 fpu_fr : union_type_2;
178 fpu_q : System.Address;
180 fpu_qcnt : unsigned_char;
181 fpu_q_entrysize : unsigned_char;
182 fpu_en : unsigned_char;
184 pragma Convention (C, record_type_1);
186 type array_type_7 is array (Integer range 0 .. 20) of long;
187 type mcontext_t is record
189 gwins : System.Address;
190 fpregs : record_type_1;
191 filler : array_type_7;
193 pragma Convention (C, mcontext_t);
195 type record_type_2 is record
196 ss_sp : System.Address;
200 pragma Convention (C, record_type_2);
202 type array_type_8 is array (Integer range 0 .. 22) of long;
203 type ucontext_t is record
204 uc_flags : unsigned_long;
205 uc_link : System.Address;
206 uc_sigmask : sigset_t;
207 uc_stack : record_type_2;
208 uc_mcontext : mcontext_t;
209 uc_filler : array_type_8;
211 pragma Convention (C, ucontext_t);
213 type Signal_Handler is access procedure
215 info : access siginfo_t;
216 context : access ucontext_t);
218 type union_type_1 is new plain_char;
219 type array_type_2 is array (Integer range 0 .. 1) of int;
220 type struct_sigaction is record
222 sa_handler : System.Address;
224 sa_resv : array_type_2;
226 pragma Convention (C, struct_sigaction);
227 type struct_sigaction_ptr is access all struct_sigaction;
229 SIG_BLOCK : constant := 1;
230 SIG_UNBLOCK : constant := 2;
231 SIG_SETMASK : constant := 3;
233 SIG_DFL : constant := 0;
234 SIG_IGN : constant := 1;
238 act : struct_sigaction_ptr;
239 oact : struct_sigaction_ptr) return int;
240 pragma Import (C, sigaction, "sigaction");
246 type timespec is private;
248 type clockid_t is private;
250 CLOCK_REALTIME : constant clockid_t;
252 function clock_gettime
253 (clock_id : clockid_t; tp : access timespec) return int;
254 pragma Import (C, clock_gettime, "clock_gettime");
256 function clock_getres
257 (clock_id : clockid_t; res : access timespec) return int;
258 pragma Import (C, clock_getres, "clock_getres");
260 function To_Duration (TS : timespec) return Duration;
261 pragma Inline (To_Duration);
263 function To_Timespec (D : Duration) return timespec;
264 pragma Inline (To_Timespec);
266 type struct_timeval is private;
267 -- This is needed on systems that do not have clock_gettime()
268 -- but do have gettimeofday().
270 function To_Duration (TV : struct_timeval) return Duration;
271 pragma Inline (To_Duration);
273 function To_Timeval (D : Duration) return struct_timeval;
274 pragma Inline (To_Timeval);
280 type pid_t is private;
282 function kill (pid : pid_t; sig : Signal) return int;
283 pragma Import (C, kill, "kill");
285 function getpid return pid_t;
286 pragma Import (C, getpid, "getpid");
292 type Thread_Body is access
293 function (arg : System.Address) return System.Address;
294 pragma Convention (C, Thread_Body);
296 function Thread_Body_Access is new
297 Ada.Unchecked_Conversion (System.Address, Thread_Body);
299 THR_DETACHED : constant := 64;
300 THR_BOUND : constant := 1;
301 THR_NEW_LWP : constant := 2;
302 USYNC_THREAD : constant := 0;
304 type thread_t is new unsigned;
305 subtype Thread_Id is thread_t;
306 -- These types should be commented ???
308 function To_thread_t is new Ada.Unchecked_Conversion (Integer, thread_t);
310 type mutex_t is limited private;
312 type cond_t is limited private;
314 type thread_key_t is private;
317 (stack_base : System.Address;
319 start_routine : Thread_Body;
320 arg : System.Address;
322 new_thread : access thread_t) return int;
323 pragma Import (C, thr_create, "thr_create");
325 function thr_min_stack return size_t;
326 pragma Import (C, thr_min_stack, "thr_min_stack");
328 function thr_self return thread_t;
329 pragma Import (C, thr_self, "thr_self");
332 (mutex : access mutex_t;
334 arg : System.Address) return int;
335 pragma Import (C, mutex_init, "mutex_init");
337 function mutex_destroy (mutex : access mutex_t) return int;
338 pragma Import (C, mutex_destroy, "mutex_destroy");
340 function mutex_lock (mutex : access mutex_t) return int;
341 pragma Import (C, mutex_lock, "mutex_lock");
343 function mutex_unlock (mutex : access mutex_t) return int;
344 pragma Import (C, mutex_unlock, "mutex_unlock");
347 (cond : access cond_t;
349 arg : int) return int;
350 pragma Import (C, cond_init, "cond_init");
353 (cond : access cond_t; mutex : access mutex_t) return int;
354 pragma Import (C, cond_wait, "cond_wait");
356 function cond_timedwait
357 (cond : access cond_t;
358 mutex : access mutex_t;
359 abstime : access timespec) return int;
360 pragma Import (C, cond_timedwait, "cond_timedwait");
362 function cond_signal (cond : access cond_t) return int;
363 pragma Import (C, cond_signal, "cond_signal");
365 function cond_destroy (cond : access cond_t) return int;
366 pragma Import (C, cond_destroy, "cond_destroy");
368 function thr_setspecific
369 (key : thread_key_t; value : System.Address) return int;
370 pragma Import (C, thr_setspecific, "thr_setspecific");
372 function thr_getspecific
374 value : access System.Address) return int;
375 pragma Import (C, thr_getspecific, "thr_getspecific");
377 function thr_keycreate
378 (key : access thread_key_t; destructor : System.Address) return int;
379 pragma Import (C, thr_keycreate, "thr_keycreate");
381 function thr_setprio (thread : thread_t; priority : int) return int;
382 pragma Import (C, thr_setprio, "thr_setprio");
384 procedure thr_exit (status : System.Address);
385 pragma Import (C, thr_exit, "thr_exit");
387 function thr_setconcurrency (new_level : int) return int;
388 pragma Import (C, thr_setconcurrency, "thr_setconcurrency");
390 function sigwait (set : access sigset_t; sig : access Signal) return int;
391 pragma Import (C, sigwait, "__posix_sigwait");
393 function thr_kill (thread : thread_t; sig : Signal) return int;
394 pragma Import (C, thr_kill, "thr_kill");
396 function thr_sigsetmask
398 set : access sigset_t;
399 oset : access sigset_t) return int;
400 pragma Import (C, thr_sigsetmask, "thr_sigsetmask");
402 function pthread_sigmask
404 set : access sigset_t;
405 oset : access sigset_t) return int;
406 pragma Import (C, pthread_sigmask, "thr_sigsetmask");
408 function thr_suspend (target_thread : thread_t) return int;
409 pragma Import (C, thr_suspend, "thr_suspend");
411 function thr_continue (target_thread : thread_t) return int;
412 pragma Import (C, thr_continue, "thr_continue");
415 pragma Import (C, thr_yield, "thr_yield");
421 P_PID : constant := 0;
422 P_LWPID : constant := 8;
424 PC_GETCID : constant := 0;
425 PC_GETCLINFO : constant := 1;
426 PC_SETPARMS : constant := 2;
427 PC_GETPARMS : constant := 3;
428 PC_ADMIN : constant := 4;
430 PC_CLNULL : constant := -1;
432 RT_NOCHANGE : constant := -1;
433 RT_TQINF : constant := -2;
434 RT_TQDEF : constant := -3;
436 PC_CLNMSZ : constant := 16;
438 PC_VERSION : constant := 1;
440 type lwpid_t is new int;
442 type pri_t is new short;
444 type id_t is new long;
446 P_MYID : constant := -1;
447 -- The specified LWP or process is the current one
449 type struct_pcinfo is record
451 pc_clname : String (1 .. PC_CLNMSZ);
454 pragma Convention (C, struct_pcinfo);
456 type struct_pcparms is record
462 pragma Convention (C, struct_pcparms);
469 arg : System.Address) return Interfaces.C.long;
470 pragma Import (C, priocntl, "__priocntl");
472 function lwp_self return lwpid_t;
473 pragma Import (C, lwp_self, "_lwp_self");
475 type processorid_t is new int;
476 type processorid_t_ptr is access all processorid_t;
478 -- Constants for function processor_bind
480 PBIND_QUERY : constant processorid_t := -2;
481 -- The processor bindings are not changed
483 PBIND_NONE : constant processorid_t := -1;
484 -- The processor bindings of the specified LWPs are cleared
486 -- Flags for function p_online
488 PR_OFFLINE : constant int := 1;
489 -- Processor is offline, as quiet as possible
491 PR_ONLINE : constant int := 2;
494 PR_STATUS : constant int := 3;
495 -- Value passed to p_online to request status
497 function p_online (processorid : processorid_t; flag : int) return int;
498 pragma Import (C, p_online, "p_online");
500 function processor_bind
503 proc_id : processorid_t;
504 obind : processorid_t_ptr) return int;
505 pragma Import (C, processor_bind, "processor_bind");
507 procedure pthread_init;
508 -- Dummy procedure to share s-intman.adb with other Solaris targets
512 type array_type_1 is array (0 .. 3) of unsigned_long;
513 type sigset_t is record
514 X_X_sigbits : array_type_1;
516 pragma Convention (C, sigset_t);
518 type pid_t is new long;
520 type time_t is new long;
522 type timespec is record
526 pragma Convention (C, timespec);
528 type clockid_t is new int;
529 CLOCK_REALTIME : constant clockid_t := 0;
531 type struct_timeval is record
535 pragma Convention (C, struct_timeval);
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;