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
);
270 type pid_t
is private;
272 function kill
(pid
: pid_t
; sig
: Signal
) return int
;
273 pragma Import
(C
, kill
, "kill");
275 function getpid
return pid_t
;
276 pragma Import
(C
, getpid
, "getpid");
282 type Thread_Body
is access
283 function (arg
: System
.Address
) return System
.Address
;
284 pragma Convention
(C
, Thread_Body
);
286 function Thread_Body_Access
is new
287 Ada
.Unchecked_Conversion
(System
.Address
, Thread_Body
);
289 THR_DETACHED
: constant := 64;
290 THR_BOUND
: constant := 1;
291 THR_NEW_LWP
: constant := 2;
292 USYNC_THREAD
: constant := 0;
294 type thread_t
is new unsigned
;
295 subtype Thread_Id
is thread_t
;
296 -- These types should be commented ???
298 function To_thread_t
is new Ada
.Unchecked_Conversion
(Integer, thread_t
);
300 type mutex_t
is limited private;
302 type cond_t
is limited private;
304 type thread_key_t
is private;
307 (stack_base
: System
.Address
;
309 start_routine
: Thread_Body
;
310 arg
: System
.Address
;
312 new_thread
: access thread_t
) return int
;
313 pragma Import
(C
, thr_create
, "thr_create");
315 function thr_min_stack
return size_t
;
316 pragma Import
(C
, thr_min_stack
, "thr_min_stack");
318 function thr_self
return thread_t
;
319 pragma Import
(C
, thr_self
, "thr_self");
322 (mutex
: access mutex_t
;
324 arg
: System
.Address
) return int
;
325 pragma Import
(C
, mutex_init
, "mutex_init");
327 function mutex_destroy
(mutex
: access mutex_t
) return int
;
328 pragma Import
(C
, mutex_destroy
, "mutex_destroy");
330 function mutex_lock
(mutex
: access mutex_t
) return int
;
331 pragma Import
(C
, mutex_lock
, "mutex_lock");
333 function mutex_unlock
(mutex
: access mutex_t
) return int
;
334 pragma Import
(C
, mutex_unlock
, "mutex_unlock");
337 (cond
: access cond_t
;
339 arg
: int
) return int
;
340 pragma Import
(C
, cond_init
, "cond_init");
343 (cond
: access cond_t
; mutex
: access mutex_t
) return int
;
344 pragma Import
(C
, cond_wait
, "cond_wait");
346 function cond_timedwait
347 (cond
: access cond_t
;
348 mutex
: access mutex_t
;
349 abstime
: access timespec
) return int
;
350 pragma Import
(C
, cond_timedwait
, "cond_timedwait");
352 function cond_signal
(cond
: access cond_t
) return int
;
353 pragma Import
(C
, cond_signal
, "cond_signal");
355 function cond_destroy
(cond
: access cond_t
) return int
;
356 pragma Import
(C
, cond_destroy
, "cond_destroy");
358 function thr_setspecific
359 (key
: thread_key_t
; value
: System
.Address
) return int
;
360 pragma Import
(C
, thr_setspecific
, "thr_setspecific");
362 function thr_getspecific
364 value
: access System
.Address
) return int
;
365 pragma Import
(C
, thr_getspecific
, "thr_getspecific");
367 function thr_keycreate
368 (key
: access thread_key_t
; destructor
: System
.Address
) return int
;
369 pragma Import
(C
, thr_keycreate
, "thr_keycreate");
371 function thr_setprio
(thread
: thread_t
; priority
: int
) return int
;
372 pragma Import
(C
, thr_setprio
, "thr_setprio");
374 procedure thr_exit
(status
: System
.Address
);
375 pragma Import
(C
, thr_exit
, "thr_exit");
377 function thr_setconcurrency
(new_level
: int
) return int
;
378 pragma Import
(C
, thr_setconcurrency
, "thr_setconcurrency");
380 function sigwait
(set
: access sigset_t
; sig
: access Signal
) return int
;
381 pragma Import
(C
, sigwait
, "__posix_sigwait");
383 function thr_kill
(thread
: thread_t
; sig
: Signal
) return int
;
384 pragma Import
(C
, thr_kill
, "thr_kill");
386 function thr_sigsetmask
388 set
: access sigset_t
;
389 oset
: access sigset_t
) return int
;
390 pragma Import
(C
, thr_sigsetmask
, "thr_sigsetmask");
392 function pthread_sigmask
394 set
: access sigset_t
;
395 oset
: access sigset_t
) return int
;
396 pragma Import
(C
, pthread_sigmask
, "thr_sigsetmask");
398 function thr_suspend
(target_thread
: thread_t
) return int
;
399 pragma Import
(C
, thr_suspend
, "thr_suspend");
401 function thr_continue
(target_thread
: thread_t
) return int
;
402 pragma Import
(C
, thr_continue
, "thr_continue");
405 pragma Import
(C
, thr_yield
, "thr_yield");
411 P_PID
: constant := 0;
412 P_LWPID
: constant := 8;
414 PC_GETCID
: constant := 0;
415 PC_GETCLINFO
: constant := 1;
416 PC_SETPARMS
: constant := 2;
417 PC_GETPARMS
: constant := 3;
418 PC_ADMIN
: constant := 4;
420 PC_CLNULL
: constant := -1;
422 RT_NOCHANGE
: constant := -1;
423 RT_TQINF
: constant := -2;
424 RT_TQDEF
: constant := -3;
426 PC_CLNMSZ
: constant := 16;
428 PC_VERSION
: constant := 1;
430 type lwpid_t
is new int
;
432 type pri_t
is new short
;
434 type id_t
is new long
;
436 P_MYID
: constant := -1;
437 -- The specified LWP or process is the current one
439 type struct_pcinfo
is record
441 pc_clname
: String (1 .. PC_CLNMSZ
);
444 pragma Convention
(C
, struct_pcinfo
);
446 type struct_pcparms
is record
452 pragma Convention
(C
, struct_pcparms
);
459 arg
: System
.Address
) return Interfaces
.C
.long
;
460 pragma Import
(C
, priocntl
, "__priocntl");
462 function lwp_self
return lwpid_t
;
463 pragma Import
(C
, lwp_self
, "_lwp_self");
465 type processorid_t
is new int
;
466 type processorid_t_ptr
is access all processorid_t
;
468 -- Constants for function processor_bind
470 PBIND_QUERY
: constant processorid_t
:= -2;
471 -- The processor bindings are not changed
473 PBIND_NONE
: constant processorid_t
:= -1;
474 -- The processor bindings of the specified LWPs are cleared
476 -- Flags for function p_online
478 PR_OFFLINE
: constant int
:= 1;
479 -- Processor is offline, as quiet as possible
481 PR_ONLINE
: constant int
:= 2;
484 PR_STATUS
: constant int
:= 3;
485 -- Value passed to p_online to request status
487 function p_online
(processorid
: processorid_t
; flag
: int
) return int
;
488 pragma Import
(C
, p_online
, "p_online");
490 function processor_bind
493 proc_id
: processorid_t
;
494 obind
: processorid_t_ptr
) return int
;
495 pragma Import
(C
, processor_bind
, "processor_bind");
497 procedure pthread_init
;
498 -- Dummy procedure to share s-intman.adb with other Solaris targets
502 type array_type_1
is array (0 .. 3) of unsigned_long
;
503 type sigset_t
is record
504 X_X_sigbits
: array_type_1
;
506 pragma Convention
(C
, sigset_t
);
508 type pid_t
is new long
;
510 type time_t
is new long
;
512 type timespec
is record
516 pragma Convention
(C
, timespec
);
518 type clockid_t
is new int
;
519 CLOCK_REALTIME
: constant clockid_t
:= 0;
521 type array_type_9
is array (0 .. 3) of unsigned_char
;
522 type record_type_3
is record
524 Xtype
: unsigned_long
;
526 pragma Convention
(C
, record_type_3
);
528 type mutex_t
is record
529 flags
: record_type_3
;
530 lock
: String (1 .. 8);
531 data
: String (1 .. 8);
533 pragma Convention
(C
, mutex_t
);
535 type cond_t
is record
537 Xtype
: unsigned_long
;
538 data
: String (1 .. 8);
540 pragma Convention
(C
, cond_t
);
542 type thread_key_t
is new unsigned
;
544 end System
.OS_Interface
;