1 ------------------------------------------------------------------------------
3 -- GNU ADA 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) 1997-2002 Free Software Foundation, Inc. --
11 -- GNARL is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNARL; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNARL was developed by the GNARL team at Florida State University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- This is a Solaris (native) version of this package
36 -- This package includes all direct interfaces to OS services
37 -- that are needed by children of System.
39 -- PLEASE DO NOT add any with-clauses to this package
40 -- or remove the pragma Elaborate_Body.
41 -- It is designed to be a bottom-level (leaf) package.
44 package System
.OS_Interface
is
47 pragma Linker_Options
("-lposix4");
48 pragma Linker_Options
("-lthread");
50 subtype int
is Interfaces
.C
.int
;
51 subtype short
is Interfaces
.C
.short
;
52 subtype long
is Interfaces
.C
.long
;
53 subtype unsigned
is Interfaces
.C
.unsigned
;
54 subtype unsigned_short
is Interfaces
.C
.unsigned_short
;
55 subtype unsigned_long
is Interfaces
.C
.unsigned_long
;
56 subtype unsigned_char
is Interfaces
.C
.unsigned_char
;
57 subtype plain_char
is Interfaces
.C
.plain_char
;
58 subtype size_t
is Interfaces
.C
.size_t
;
64 function errno
return int
;
65 pragma Import
(C
, errno
, "__get_errno");
67 EAGAIN
: constant := 11;
68 EINTR
: constant := 4;
69 EINVAL
: constant := 22;
70 ENOMEM
: constant := 12;
71 ETIME
: constant := 62;
72 ETIMEDOUT
: constant := 145;
78 Max_Interrupt
: constant := 45;
79 type Signal
is new int
range 0 .. Max_Interrupt
;
80 for Signal
'Size use int
'Size;
82 SIGHUP
: constant := 1; -- hangup
83 SIGINT
: constant := 2; -- interrupt (rubout)
84 SIGQUIT
: constant := 3; -- quit (ASCD FS)
85 SIGILL
: constant := 4; -- illegal instruction (not reset)
86 SIGTRAP
: constant := 5; -- trace trap (not reset)
87 SIGIOT
: constant := 6; -- IOT instruction
88 SIGABRT
: constant := 6; -- used by abort, replace SIGIOT in the future
89 SIGEMT
: constant := 7; -- EMT instruction
90 SIGFPE
: constant := 8; -- floating point exception
91 SIGKILL
: constant := 9; -- kill (cannot be caught or ignored)
92 SIGBUS
: constant := 10; -- bus error
93 SIGSEGV
: constant := 11; -- segmentation violation
94 SIGSYS
: constant := 12; -- bad argument to system call
95 SIGPIPE
: constant := 13; -- write on a pipe with no one to read it
96 SIGALRM
: constant := 14; -- alarm clock
97 SIGTERM
: constant := 15; -- software termination signal from kill
98 SIGUSR1
: constant := 16; -- user defined signal 1
99 SIGUSR2
: constant := 17; -- user defined signal 2
100 SIGCLD
: constant := 18; -- alias for SIGCHLD
101 SIGCHLD
: constant := 18; -- child status change
102 SIGPWR
: constant := 19; -- power-fail restart
103 SIGWINCH
: constant := 20; -- window size change
104 SIGURG
: constant := 21; -- urgent condition on IO channel
105 SIGPOLL
: constant := 22; -- pollable event occurred
106 SIGIO
: constant := 22; -- I/O possible (Solaris SIGPOLL alias)
107 SIGSTOP
: constant := 23; -- stop (cannot be caught or ignored)
108 SIGTSTP
: constant := 24; -- user stop requested from tty
109 SIGCONT
: constant := 25; -- stopped process has been continued
110 SIGTTIN
: constant := 26; -- background tty read attempted
111 SIGTTOU
: constant := 27; -- background tty write attempted
112 SIGVTALRM
: constant := 28; -- virtual timer expired
113 SIGPROF
: constant := 29; -- profiling timer expired
114 SIGXCPU
: constant := 30; -- CPU time limit exceeded
115 SIGXFSZ
: constant := 31; -- filesize limit exceeded
116 SIGWAITING
: constant := 32; -- process's lwps blocked (Solaris)
117 SIGLWP
: constant := 33; -- used by thread library (Solaris)
118 SIGFREEZE
: constant := 34; -- used by CPR (Solaris)
119 SIGTHAW
: constant := 35; -- used by CPR (Solaris)
120 SIGCANCEL
: constant := 36; -- thread cancellation signal (libthread)
122 type Signal_Set
is array (Natural range <>) of Signal
;
124 Unmasked
: constant Signal_Set
:= (SIGTRAP
, SIGLWP
, SIGPROF
);
126 -- Following signals should not be disturbed.
127 -- See c-posix-signals.c in FLORIST
129 Reserved
: constant Signal_Set
:=
130 (SIGKILL
, SIGSTOP
, SIGWAITING
, SIGCANCEL
, SIGTRAP
, SIGSEGV
);
132 type sigset_t
is private;
134 function sigaddset
(set
: access sigset_t
; sig
: Signal
) return int
;
135 pragma Import
(C
, sigaddset
, "sigaddset");
137 function sigdelset
(set
: access sigset_t
; sig
: Signal
) return int
;
138 pragma Import
(C
, sigdelset
, "sigdelset");
140 function sigfillset
(set
: access sigset_t
) return int
;
141 pragma Import
(C
, sigfillset
, "sigfillset");
143 function sigismember
(set
: access sigset_t
; sig
: Signal
) return int
;
144 pragma Import
(C
, sigismember
, "sigismember");
146 function sigemptyset
(set
: access sigset_t
) return int
;
147 pragma Import
(C
, sigemptyset
, "sigemptyset");
149 type union_type_3
is new String (1 .. 116);
150 type siginfo_t
is record
154 X_data
: union_type_3
;
156 pragma Convention
(C
, siginfo_t
);
158 -- The types mcontext_t and gregset_t are part of the ucontext_t
159 -- information, which is specific to Solaris2.4 for SPARC
160 -- The ucontext_t info seems to be used by the handler
161 -- for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or
162 -- a Constraint_Error (bad pointer). The original code that did this
163 -- is suspect, so it is not clear whether we really need this part of
164 -- the signal context information, or perhaps something else.
165 -- More analysis is needed, after which these declarations may need to
168 FPE_INTDIV
: constant := 1; -- integer divide by zero
169 FPE_INTOVF
: constant := 2; -- integer overflow
170 FPE_FLTDIV
: constant := 3; -- floating point divide by zero
171 FPE_FLTOVF
: constant := 4; -- floating point overflow
172 FPE_FLTUND
: constant := 5; -- floating point underflow
173 FPE_FLTRES
: constant := 6; -- floating point inexact result
174 FPE_FLTINV
: constant := 7; -- invalid floating point operation
175 FPE_FLTSUB
: constant := 8; -- subscript out of range
177 type greg_t
is new int
;
179 type gregset_t
is array (0 .. 18) of greg_t
;
181 type union_type_2
is new String (1 .. 128);
182 type record_type_1
is record
183 fpu_fr
: union_type_2
;
184 fpu_q
: System
.Address
;
186 fpu_qcnt
: unsigned_char
;
187 fpu_q_entrysize
: unsigned_char
;
188 fpu_en
: unsigned_char
;
190 pragma Convention
(C
, record_type_1
);
192 type array_type_7
is array (Integer range 0 .. 20) of long
;
193 type mcontext_t
is record
195 gwins
: System
.Address
;
196 fpregs
: record_type_1
;
197 filler
: array_type_7
;
199 pragma Convention
(C
, mcontext_t
);
201 type record_type_2
is record
202 ss_sp
: System
.Address
;
206 pragma Convention
(C
, record_type_2
);
208 type array_type_8
is array (Integer range 0 .. 22) of long
;
209 type ucontext_t
is record
210 uc_flags
: unsigned_long
;
211 uc_link
: System
.Address
;
212 uc_sigmask
: sigset_t
;
213 uc_stack
: record_type_2
;
214 uc_mcontext
: mcontext_t
;
215 uc_filler
: array_type_8
;
217 pragma Convention
(C
, ucontext_t
);
219 type Signal_Handler
is access procedure
221 info
: access siginfo_t
;
222 context
: access ucontext_t
);
224 type union_type_1
is new plain_char
;
225 type array_type_2
is array (Integer range 0 .. 1) of int
;
226 type struct_sigaction
is record
228 sa_handler
: System
.Address
;
230 sa_resv
: array_type_2
;
232 pragma Convention
(C
, struct_sigaction
);
233 type struct_sigaction_ptr
is access all struct_sigaction
;
235 SIG_BLOCK
: constant := 1;
236 SIG_UNBLOCK
: constant := 2;
237 SIG_SETMASK
: constant := 3;
239 SIG_DFL
: constant := 0;
240 SIG_IGN
: constant := 1;
244 act
: struct_sigaction_ptr
;
245 oact
: struct_sigaction_ptr
) return int
;
246 pragma Import
(C
, sigaction
, "sigaction");
252 type timespec
is private;
254 type clockid_t
is private;
256 CLOCK_REALTIME
: constant clockid_t
;
258 function clock_gettime
259 (clock_id
: clockid_t
; tp
: access timespec
) return int
;
260 pragma Import
(C
, clock_gettime
, "clock_gettime");
262 function clock_getres
263 (clock_id
: clockid_t
; res
: access timespec
) return int
;
264 pragma Import
(C
, clock_getres
, "clock_getres");
266 function To_Duration
(TS
: timespec
) return Duration;
267 pragma Inline
(To_Duration
);
269 function To_Timespec
(D
: Duration) return timespec
;
270 pragma Inline
(To_Timespec
);
272 type struct_timeval
is private;
273 -- This is needed on systems that do not have clock_gettime()
274 -- but do have gettimeofday().
276 function To_Duration
(TV
: struct_timeval
) return Duration;
277 pragma Inline
(To_Duration
);
279 function To_Timeval
(D
: Duration) return struct_timeval
;
280 pragma Inline
(To_Timeval
);
286 type pid_t
is private;
288 function kill
(pid
: pid_t
; sig
: Signal
) return int
;
289 pragma Import
(C
, kill
, "kill");
291 function getpid
return pid_t
;
292 pragma Import
(C
, getpid
, "getpid");
298 type Thread_Body
is access
299 function (arg
: System
.Address
) return System
.Address
;
301 THR_DETACHED
: constant := 64;
302 THR_BOUND
: constant := 1;
303 THR_NEW_LWP
: constant := 2;
304 USYNC_THREAD
: constant := 0;
306 type thread_t
is private;
307 subtype Thread_Id
is thread_t
;
309 type mutex_t
is limited private;
311 type cond_t
is limited private;
313 type thread_key_t
is private;
316 (stack_base
: System
.Address
;
318 start_routine
: Thread_Body
;
319 arg
: System
.Address
;
321 new_thread
: access thread_t
) return int
;
322 pragma Import
(C
, thr_create
, "thr_create");
324 function thr_min_stack
return size_t
;
325 pragma Import
(C
, thr_min_stack
, "thr_min_stack");
327 function thr_self
return thread_t
;
328 pragma Import
(C
, thr_self
, "thr_self");
331 (mutex
: access mutex_t
;
333 arg
: System
.Address
) return int
;
334 pragma Import
(C
, mutex_init
, "mutex_init");
336 function mutex_destroy
(mutex
: access mutex_t
) return int
;
337 pragma Import
(C
, mutex_destroy
, "mutex_destroy");
339 function mutex_lock
(mutex
: access mutex_t
) return int
;
340 pragma Import
(C
, mutex_lock
, "mutex_lock");
342 function mutex_unlock
(mutex
: access mutex_t
) return int
;
343 pragma Import
(C
, mutex_unlock
, "mutex_unlock");
346 (cond
: access cond_t
;
348 arg
: int
) return int
;
349 pragma Import
(C
, cond_init
, "cond_init");
352 (cond
: access cond_t
; mutex
: access mutex_t
) return int
;
353 pragma Import
(C
, cond_wait
, "cond_wait");
355 function cond_timedwait
356 (cond
: access cond_t
;
357 mutex
: access mutex_t
;
358 abstime
: access timespec
) return int
;
359 pragma Import
(C
, cond_timedwait
, "cond_timedwait");
361 function cond_signal
(cond
: access cond_t
) return int
;
362 pragma Import
(C
, cond_signal
, "cond_signal");
364 function cond_destroy
(cond
: access cond_t
) return int
;
365 pragma Import
(C
, cond_destroy
, "cond_destroy");
367 function thr_setspecific
368 (key
: thread_key_t
; value
: System
.Address
) return int
;
369 pragma Import
(C
, thr_setspecific
, "thr_setspecific");
371 function thr_getspecific
373 value
: access System
.Address
) return int
;
374 pragma Import
(C
, thr_getspecific
, "thr_getspecific");
376 function thr_keycreate
377 (key
: access thread_key_t
; destructor
: System
.Address
) return int
;
378 pragma Import
(C
, thr_keycreate
, "thr_keycreate");
380 function thr_setprio
(thread
: thread_t
; priority
: int
) return int
;
381 pragma Import
(C
, thr_setprio
, "thr_setprio");
383 procedure thr_exit
(status
: System
.Address
);
384 pragma Import
(C
, thr_exit
, "thr_exit");
386 function thr_setconcurrency
(new_level
: int
) return int
;
387 pragma Import
(C
, thr_setconcurrency
, "thr_setconcurrency");
389 function sigwait
(set
: access sigset_t
; sig
: access Signal
) return int
;
390 pragma Import
(C
, sigwait
, "__posix_sigwait");
392 function thr_kill
(thread
: thread_t
; sig
: Signal
) return int
;
393 pragma Import
(C
, thr_kill
, "thr_kill");
395 type sigset_t_ptr
is access all sigset_t
;
397 function thr_sigsetmask
400 oset
: sigset_t_ptr
) return int
;
401 pragma Import
(C
, thr_sigsetmask
, "thr_sigsetmask");
403 function pthread_sigmask
406 oset
: sigset_t_ptr
) return int
;
407 pragma Import
(C
, pthread_sigmask
, "thr_sigsetmask");
409 function thr_suspend
(target_thread
: thread_t
) return int
;
410 pragma Import
(C
, thr_suspend
, "thr_suspend");
412 function thr_continue
(target_thread
: thread_t
) return int
;
413 pragma Import
(C
, thr_continue
, "thr_continue");
416 pragma Import
(C
, thr_yield
, "thr_yield");
422 P_PID
: constant := 0;
423 P_LWPID
: constant := 8;
425 PC_GETCID
: constant := 0;
426 PC_GETCLINFO
: constant := 1;
427 PC_SETPARMS
: constant := 2;
428 PC_GETPARMS
: constant := 3;
429 PC_ADMIN
: constant := 4;
431 PC_CLNULL
: constant := -1;
433 RT_NOCHANGE
: constant := -1;
434 RT_TQINF
: constant := -2;
435 RT_TQDEF
: constant := -3;
437 PC_CLNMSZ
: constant := 16;
439 PC_VERSION
: constant := 1;
441 type lwpid_t
is new int
;
443 type pri_t
is new short
;
445 type id_t
is new long
;
447 P_MYID
: constant := -1;
448 -- the specified LWP or process is the current one.
450 type struct_pcinfo
is record
452 pc_clname
: String (1 .. PC_CLNMSZ
);
455 pragma Convention
(C
, struct_pcinfo
);
457 type struct_pcparms
is record
463 pragma Convention
(C
, struct_pcparms
);
470 arg
: System
.Address
) return Interfaces
.C
.long
;
471 pragma Import
(C
, priocntl
, "__priocntl");
473 function lwp_self
return lwpid_t
;
474 pragma Import
(C
, lwp_self
, "_lwp_self");
476 type processorid_t
is new int
;
477 type processorid_t_ptr
is access all processorid_t
;
479 -- Constants for function processor_bind
481 PBIND_QUERY
: constant processorid_t
:= -2;
482 -- the processor bindings are not changed.
484 PBIND_NONE
: constant processorid_t
:= -1;
485 -- the processor bindings of the specified LWPs are cleared.
487 -- Flags for function p_online
489 PR_OFFLINE
: constant int
:= 1;
490 -- processor is offline, as quiet as possible
492 PR_ONLINE
: constant int
:= 2;
495 PR_STATUS
: constant int
:= 3;
496 -- value passed to p_online to request status
498 function p_online
(processorid
: processorid_t
; flag
: int
) return int
;
499 pragma Import
(C
, p_online
, "p_online");
501 function processor_bind
504 proc_id
: processorid_t
;
505 obind
: processorid_t_ptr
) return int
;
506 pragma Import
(C
, processor_bind
, "processor_bind");
508 procedure pthread_init
;
509 -- dummy procedure to share s-intman.adb with other Solaris targets.
513 type array_type_1
is array (0 .. 3) of unsigned_long
;
514 type sigset_t
is record
515 X_X_sigbits
: array_type_1
;
517 pragma Convention
(C
, sigset_t
);
519 type pid_t
is new long
;
521 type time_t
is new long
;
523 type timespec
is record
527 pragma Convention
(C
, timespec
);
529 type clockid_t
is new int
;
530 CLOCK_REALTIME
: constant clockid_t
:= 0;
532 type struct_timeval
is record
536 pragma Convention
(C
, struct_timeval
);
538 type thread_t
is new unsigned
;
540 type array_type_9
is array (0 .. 3) of unsigned_char
;
541 type record_type_3
is record
543 Xtype
: unsigned_long
;
545 pragma Convention
(C
, record_type_3
);
547 type mutex_t
is record
548 flags
: record_type_3
;
549 lock
: String (1 .. 8);
550 data
: String (1 .. 8);
552 pragma Convention
(C
, mutex_t
);
554 type cond_t
is record
556 Xtype
: unsigned_long
;
557 data
: String (1 .. 8);
559 pragma Convention
(C
, cond_t
);
561 type thread_key_t
is new unsigned
;
563 end System
.OS_Interface
;