1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- 4-- -- 5-- S Y S T E M . O S _ I N T E R F A C E -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 1991-1994, Florida State University -- 10-- Copyright (C) 1995-2011, Free Software Foundation, Inc. -- 11-- -- 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. -- 18-- -- 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. -- 22-- -- 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/>. -- 27-- -- 28-- GNARL was developed by the GNARL team at Florida State University. -- 29-- Extensive contributions were provided by Ada Core Technologies, Inc. -- 30-- -- 31------------------------------------------------------------------------------ 32 33-- This is a Solaris (native) version of this package 34 35-- This package includes all direct interfaces to OS services 36-- that are needed by the tasking run-time (libgnarl). 37 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. 40 41with Interfaces.C; 42 43with Ada.Unchecked_Conversion; 44 45package System.OS_Interface is 46 pragma Preelaborate; 47 48 pragma Linker_Options ("-lposix4"); 49 pragma Linker_Options ("-lthread"); 50 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; 60 61 ----------- 62 -- Errno -- 63 ----------- 64 65 function errno return int; 66 pragma Import (C, errno, "__get_errno"); 67 68 EAGAIN : constant := 11; 69 EINTR : constant := 4; 70 EINVAL : constant := 22; 71 ENOMEM : constant := 12; 72 ETIME : constant := 62; 73 ETIMEDOUT : constant := 145; 74 75 ------------- 76 -- Signals -- 77 ------------- 78 79 Max_Interrupt : constant := 45; 80 type Signal is new int range 0 .. Max_Interrupt; 81 for Signal'Size use int'Size; 82 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) 122 123 type Signal_Set is array (Natural range <>) of Signal; 124 125 Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF); 126 127 -- Following signals should not be disturbed. 128 -- See c-posix-signals.c in FLORIST. 129 130 Reserved : constant Signal_Set := 131 (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV); 132 133 type sigset_t is private; 134 135 function sigaddset (set : access sigset_t; sig : Signal) return int; 136 pragma Import (C, sigaddset, "sigaddset"); 137 138 function sigdelset (set : access sigset_t; sig : Signal) return int; 139 pragma Import (C, sigdelset, "sigdelset"); 140 141 function sigfillset (set : access sigset_t) return int; 142 pragma Import (C, sigfillset, "sigfillset"); 143 144 function sigismember (set : access sigset_t; sig : Signal) return int; 145 pragma Import (C, sigismember, "sigismember"); 146 147 function sigemptyset (set : access sigset_t) return int; 148 pragma Import (C, sigemptyset, "sigemptyset"); 149 150 type union_type_3 is new String (1 .. 116); 151 type siginfo_t is record 152 si_signo : int; 153 si_code : int; 154 si_errno : int; 155 X_data : union_type_3; 156 end record; 157 pragma Convention (C, siginfo_t); 158 159 -- 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 167 -- be changed. 168 169 type greg_t is new int; 170 171 type gregset_t is array (0 .. 18) of greg_t; 172 173 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; 177 fpu_fsr : unsigned; 178 fpu_qcnt : unsigned_char; 179 fpu_q_entrysize : unsigned_char; 180 fpu_en : unsigned_char; 181 end record; 182 pragma Convention (C, record_type_1); 183 184 type array_type_7 is array (Integer range 0 .. 20) of long; 185 type mcontext_t is record 186 gregs : gregset_t; 187 gwins : System.Address; 188 fpregs : record_type_1; 189 filler : array_type_7; 190 end record; 191 pragma Convention (C, mcontext_t); 192 193 type record_type_2 is record 194 ss_sp : System.Address; 195 ss_size : int; 196 ss_flags : int; 197 end record; 198 pragma Convention (C, record_type_2); 199 200 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; 208 end record; 209 pragma Convention (C, ucontext_t); 210 211 type Signal_Handler is access procedure 212 (signo : Signal; 213 info : access siginfo_t; 214 context : access ucontext_t); 215 216 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 219 sa_flags : int; 220 sa_handler : System.Address; 221 sa_mask : sigset_t; 222 sa_resv : array_type_2; 223 end record; 224 pragma Convention (C, struct_sigaction); 225 type struct_sigaction_ptr is access all struct_sigaction; 226 227 SIG_BLOCK : constant := 1; 228 SIG_UNBLOCK : constant := 2; 229 SIG_SETMASK : constant := 3; 230 231 SIG_DFL : constant := 0; 232 SIG_IGN : constant := 1; 233 234 function sigaction 235 (sig : Signal; 236 act : struct_sigaction_ptr; 237 oact : struct_sigaction_ptr) return int; 238 pragma Import (C, sigaction, "sigaction"); 239 240 ---------- 241 -- Time -- 242 ---------- 243 244 type timespec is private; 245 246 type clockid_t is new int; 247 248 function clock_gettime 249 (clock_id : clockid_t; tp : access timespec) return int; 250 pragma Import (C, clock_gettime, "clock_gettime"); 251 252 function clock_getres 253 (clock_id : clockid_t; res : access timespec) return int; 254 pragma Import (C, clock_getres, "clock_getres"); 255 256 function To_Duration (TS : timespec) return Duration; 257 pragma Inline (To_Duration); 258 259 function To_Timespec (D : Duration) return timespec; 260 pragma Inline (To_Timespec); 261 262 ------------- 263 -- Process -- 264 ------------- 265 266 type pid_t is private; 267 268 function kill (pid : pid_t; sig : Signal) return int; 269 pragma Import (C, kill, "kill"); 270 271 function getpid return pid_t; 272 pragma Import (C, getpid, "getpid"); 273 274 ------------- 275 -- Threads -- 276 ------------- 277 278 type Thread_Body is access 279 function (arg : System.Address) return System.Address; 280 pragma Convention (C, Thread_Body); 281 282 function Thread_Body_Access is new 283 Ada.Unchecked_Conversion (System.Address, Thread_Body); 284 285 THR_DETACHED : constant := 64; 286 THR_BOUND : constant := 1; 287 THR_NEW_LWP : constant := 2; 288 USYNC_THREAD : constant := 0; 289 290 type thread_t is new unsigned; 291 subtype Thread_Id is thread_t; 292 -- These types should be commented ??? 293 294 function To_thread_t is new Ada.Unchecked_Conversion (Integer, thread_t); 295 296 type mutex_t is limited private; 297 298 type cond_t is limited private; 299 300 type thread_key_t is private; 301 302 function thr_create 303 (stack_base : System.Address; 304 stack_size : size_t; 305 start_routine : Thread_Body; 306 arg : System.Address; 307 flags : int; 308 new_thread : access thread_t) return int; 309 pragma Import (C, thr_create, "thr_create"); 310 311 function thr_min_stack return size_t; 312 pragma Import (C, thr_min_stack, "thr_min_stack"); 313 314 function thr_self return thread_t; 315 pragma Import (C, thr_self, "thr_self"); 316 317 function mutex_init 318 (mutex : access mutex_t; 319 mtype : int; 320 arg : System.Address) return int; 321 pragma Import (C, mutex_init, "mutex_init"); 322 323 function mutex_destroy (mutex : access mutex_t) return int; 324 pragma Import (C, mutex_destroy, "mutex_destroy"); 325 326 function mutex_lock (mutex : access mutex_t) return int; 327 pragma Import (C, mutex_lock, "mutex_lock"); 328 329 function mutex_unlock (mutex : access mutex_t) return int; 330 pragma Import (C, mutex_unlock, "mutex_unlock"); 331 332 function cond_init 333 (cond : access cond_t; 334 ctype : int; 335 arg : int) return int; 336 pragma Import (C, cond_init, "cond_init"); 337 338 function cond_wait 339 (cond : access cond_t; mutex : access mutex_t) return int; 340 pragma Import (C, cond_wait, "cond_wait"); 341 342 function cond_timedwait 343 (cond : access cond_t; 344 mutex : access mutex_t; 345 abstime : access timespec) return int; 346 pragma Import (C, cond_timedwait, "cond_timedwait"); 347 348 function cond_signal (cond : access cond_t) return int; 349 pragma Import (C, cond_signal, "cond_signal"); 350 351 function cond_destroy (cond : access cond_t) return int; 352 pragma Import (C, cond_destroy, "cond_destroy"); 353 354 function thr_setspecific 355 (key : thread_key_t; value : System.Address) return int; 356 pragma Import (C, thr_setspecific, "thr_setspecific"); 357 358 function thr_getspecific 359 (key : thread_key_t; 360 value : access System.Address) return int; 361 pragma Import (C, thr_getspecific, "thr_getspecific"); 362 363 function thr_keycreate 364 (key : access thread_key_t; destructor : System.Address) return int; 365 pragma Import (C, thr_keycreate, "thr_keycreate"); 366 367 function thr_setprio (thread : thread_t; priority : int) return int; 368 pragma Import (C, thr_setprio, "thr_setprio"); 369 370 procedure thr_exit (status : System.Address); 371 pragma Import (C, thr_exit, "thr_exit"); 372 373 function thr_setconcurrency (new_level : int) return int; 374 pragma Import (C, thr_setconcurrency, "thr_setconcurrency"); 375 376 function sigwait (set : access sigset_t; sig : access Signal) return int; 377 pragma Import (C, sigwait, "__posix_sigwait"); 378 379 function thr_kill (thread : thread_t; sig : Signal) return int; 380 pragma Import (C, thr_kill, "thr_kill"); 381 382 function thr_sigsetmask 383 (how : int; 384 set : access sigset_t; 385 oset : access sigset_t) return int; 386 pragma Import (C, thr_sigsetmask, "thr_sigsetmask"); 387 388 function pthread_sigmask 389 (how : int; 390 set : access sigset_t; 391 oset : access sigset_t) return int; 392 pragma Import (C, pthread_sigmask, "thr_sigsetmask"); 393 394 function thr_suspend (target_thread : thread_t) return int; 395 pragma Import (C, thr_suspend, "thr_suspend"); 396 397 function thr_continue (target_thread : thread_t) return int; 398 pragma Import (C, thr_continue, "thr_continue"); 399 400 procedure thr_yield; 401 pragma Import (C, thr_yield, "thr_yield"); 402 403 --------- 404 -- LWP -- 405 --------- 406 407 P_PID : constant := 0; 408 P_LWPID : constant := 8; 409 410 PC_GETCID : constant := 0; 411 PC_GETCLINFO : constant := 1; 412 PC_SETPARMS : constant := 2; 413 PC_GETPARMS : constant := 3; 414 PC_ADMIN : constant := 4; 415 416 PC_CLNULL : constant := -1; 417 418 RT_NOCHANGE : constant := -1; 419 RT_TQINF : constant := -2; 420 RT_TQDEF : constant := -3; 421 422 PC_CLNMSZ : constant := 16; 423 424 PC_VERSION : constant := 1; 425 426 type lwpid_t is new int; 427 428 type pri_t is new short; 429 430 type id_t is new long; 431 432 P_MYID : constant := -1; 433 -- The specified LWP or process is the current one 434 435 type struct_pcinfo is record 436 pc_cid : id_t; 437 pc_clname : String (1 .. PC_CLNMSZ); 438 rt_maxpri : short; 439 end record; 440 pragma Convention (C, struct_pcinfo); 441 442 type struct_pcparms is record 443 pc_cid : id_t; 444 rt_pri : pri_t; 445 rt_tqsecs : long; 446 rt_tqnsecs : long; 447 end record; 448 pragma Convention (C, struct_pcparms); 449 450 function priocntl 451 (ver : int; 452 id_type : int; 453 id : lwpid_t; 454 cmd : int; 455 arg : System.Address) return Interfaces.C.long; 456 pragma Import (C, priocntl, "__priocntl"); 457 458 function lwp_self return lwpid_t; 459 pragma Import (C, lwp_self, "_lwp_self"); 460 461 type processorid_t is new int; 462 type processorid_t_ptr is access all processorid_t; 463 464 -- Constants for function processor_bind 465 466 PBIND_QUERY : constant processorid_t := -2; 467 -- The processor bindings are not changed 468 469 PBIND_NONE : constant processorid_t := -1; 470 -- The processor bindings of the specified LWPs are cleared 471 472 -- Flags for function p_online 473 474 PR_OFFLINE : constant int := 1; 475 -- Processor is offline, as quiet as possible 476 477 PR_ONLINE : constant int := 2; 478 -- Processor online 479 480 PR_STATUS : constant int := 3; 481 -- Value passed to p_online to request status 482 483 function p_online (processorid : processorid_t; flag : int) return int; 484 pragma Import (C, p_online, "p_online"); 485 486 function processor_bind 487 (id_type : int; 488 id : id_t; 489 proc_id : processorid_t; 490 obind : processorid_t_ptr) return int; 491 pragma Import (C, processor_bind, "processor_bind"); 492 493 type psetid_t is new int; 494 495 function pset_create (pset : access psetid_t) return int; 496 pragma Import (C, pset_create, "pset_create"); 497 498 function pset_assign 499 (pset : psetid_t; 500 proc_id : processorid_t; 501 opset : access psetid_t) return int; 502 pragma Import (C, pset_assign, "pset_assign"); 503 504 function pset_bind 505 (pset : psetid_t; 506 id_type : int; 507 id : id_t; 508 opset : access psetid_t) return int; 509 pragma Import (C, pset_bind, "pset_bind"); 510 511 procedure pthread_init; 512 -- Dummy procedure to share s-intman.adb with other Solaris targets 513 514private 515 516 type array_type_1 is array (0 .. 3) of unsigned_long; 517 type sigset_t is record 518 X_X_sigbits : array_type_1; 519 end record; 520 pragma Convention (C, sigset_t); 521 522 type pid_t is new long; 523 524 type time_t is new long; 525 526 type timespec is record 527 tv_sec : time_t; 528 tv_nsec : long; 529 end record; 530 pragma Convention (C, timespec); 531 532 type array_type_9 is array (0 .. 3) of unsigned_char; 533 type record_type_3 is record 534 flag : array_type_9; 535 Xtype : unsigned_long; 536 end record; 537 pragma Convention (C, record_type_3); 538 539 type mutex_t is record 540 flags : record_type_3; 541 lock : String (1 .. 8); 542 data : String (1 .. 8); 543 end record; 544 pragma Convention (C, mutex_t); 545 546 type cond_t is record 547 flag : array_type_9; 548 Xtype : unsigned_long; 549 data : String (1 .. 8); 550 end record; 551 pragma Convention (C, cond_t); 552 553 type thread_key_t is new unsigned; 554 555end System.OS_Interface; 556