gcc/ada/s-osinte-solaris.ads

   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) 1995-2009, Free Software Foundation, Inc.         --
  11 --                                                                          --
  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.                                              --
  22 --                                                                          --
  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.                                      --
  29 --                                                                          --
  30 -- GNARL was developed by the GNARL team at Florida State University.       --
  31 -- Extensive contributions were provided by Ada Core Technologies, Inc.     --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 --  This is a Solaris (native) version of this package
  36
  37 --  This package includes all direct interfaces to OS services
  38 --  that are needed by the tasking run-time (libgnarl).
  39
  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.
  42
  43 with Interfaces.C;
  44
  45 with Ada.Unchecked_Conversion;
  46
  47 package System.OS_Interface is
  48    pragma Preelaborate;
  49
  50    pragma Linker_Options ("-lposix4");
  51    pragma Linker_Options ("-lthread");
  52
  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;
  62
  63    -----------
  64    -- Errno --
  65    -----------
  66
  67    function errno return int;
  68    pragma Import (C, errno, "__get_errno");
  69
  70    EAGAIN    : constant := 11;
  71    EINTR     : constant := 4;
  72    EINVAL    : constant := 22;
  73    ENOMEM    : constant := 12;
  74    ETIME     : constant := 62;
  75    ETIMEDOUT : constant := 145;
  76
  77    -------------
  78    -- Signals --
  79    -------------
  80
  81    Max_Interrupt : constant := 45;
  82    type Signal is new int range 0 .. Max_Interrupt;
  83    for Signal'Size use int'Size;
  84
  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)
 124
 125    type Signal_Set is array (Natural range <>) of Signal;
 126
 127    Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
 128
 129    --  Following signals should not be disturbed.
 130    --  See c-posix-signals.c in FLORIST.
 131
 132    Reserved : constant Signal_Set :=
 133      (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV);
 134
 135    type sigset_t is private;
 136
 137    function sigaddset (set : access sigset_t; sig : Signal) return int;
 138    pragma Import (C, sigaddset, "sigaddset");
 139
 140    function sigdelset (set : access sigset_t; sig : Signal) return int;
 141    pragma Import (C, sigdelset, "sigdelset");
 142
 143    function sigfillset (set : access sigset_t) return int;
 144    pragma Import (C, sigfillset, "sigfillset");
 145
 146    function sigismember (set : access sigset_t; sig : Signal) return int;
 147    pragma Import (C, sigismember, "sigismember");
 148
 149    function sigemptyset (set : access sigset_t) return int;
 150    pragma Import (C, sigemptyset, "sigemptyset");
 151
 152    type union_type_3 is new String (1 .. 116);
 153    type siginfo_t is record
 154       si_signo     : int;
 155       si_code      : int;
 156       si_errno     : int;
 157       X_data       : union_type_3;
 158    end record;
 159    pragma Convention (C, siginfo_t);
 160
 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
 169    --  be changed.
 170
 171    type greg_t is new int;
 172
 173    type gregset_t is array (0 .. 18) of greg_t;
 174
 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;
 179       fpu_fsr      : unsigned;
 180       fpu_qcnt     : unsigned_char;
 181       fpu_q_entrysize  : unsigned_char;
 182       fpu_en       : unsigned_char;
 183    end record;
 184    pragma Convention (C, record_type_1);
 185
 186    type array_type_7 is array (Integer range 0 .. 20) of long;
 187    type mcontext_t is record
 188       gregs        : gregset_t;
 189       gwins        : System.Address;
 190       fpregs       : record_type_1;
 191       filler       : array_type_7;
 192    end record;
 193    pragma Convention (C, mcontext_t);
 194
 195    type record_type_2 is record
 196       ss_sp        : System.Address;
 197       ss_size      : int;
 198       ss_flags     : int;
 199    end record;
 200    pragma Convention (C, record_type_2);
 201
 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;
 210    end record;
 211    pragma Convention (C, ucontext_t);
 212
 213    type Signal_Handler is access procedure
 214      (signo   : Signal;
 215       info    : access siginfo_t;
 216       context : access ucontext_t);
 217
 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
 221       sa_flags   : int;
 222       sa_handler : System.Address;
 223       sa_mask    : sigset_t;
 224       sa_resv    : array_type_2;
 225    end record;
 226    pragma Convention (C, struct_sigaction);
 227    type struct_sigaction_ptr is access all struct_sigaction;
 228
 229    SIG_BLOCK   : constant := 1;
 230    SIG_UNBLOCK : constant := 2;
 231    SIG_SETMASK : constant := 3;
 232
 233    SIG_DFL : constant := 0;
 234    SIG_IGN : constant := 1;
 235
 236    function sigaction
 237      (sig  : Signal;
 238       act  : struct_sigaction_ptr;
 239       oact : struct_sigaction_ptr) return int;
 240    pragma Import (C, sigaction, "sigaction");
 241
 242    ----------
 243    -- Time --
 244    ----------
 245
 246    type timespec is private;
 247
 248    type clockid_t is private;
 249
 250    CLOCK_REALTIME : constant clockid_t;
 251
 252    function clock_gettime
 253      (clock_id : clockid_t; tp : access timespec) return int;
 254    pragma Import (C, clock_gettime, "clock_gettime");
 255
 256    function clock_getres
 257      (clock_id : clockid_t; res : access timespec) return int;
 258    pragma Import (C, clock_getres, "clock_getres");
 259
 260    function To_Duration (TS : timespec) return Duration;
 261    pragma Inline (To_Duration);
 262
 263    function To_Timespec (D : Duration) return timespec;
 264    pragma Inline (To_Timespec);
 265
 266    -------------
 267    -- Process --
 268    -------------
 269
 270    type pid_t is private;
 271
 272    function kill (pid : pid_t; sig : Signal) return int;
 273    pragma Import (C, kill, "kill");
 274
 275    function getpid return pid_t;
 276    pragma Import (C, getpid, "getpid");
 277
 278    -------------
 279    -- Threads --
 280    -------------
 281
 282    type Thread_Body is access
 283      function (arg : System.Address) return System.Address;
 284    pragma Convention (C, Thread_Body);
 285
 286    function Thread_Body_Access is new
 287      Ada.Unchecked_Conversion (System.Address, Thread_Body);
 288
 289    THR_DETACHED  : constant := 64;
 290    THR_BOUND     : constant := 1;
 291    THR_NEW_LWP   : constant := 2;
 292    USYNC_THREAD  : constant := 0;
 293
 294    type thread_t is new unsigned;
 295    subtype Thread_Id is thread_t;
 296    --  These types should be commented ???
 297
 298    function To_thread_t is new Ada.Unchecked_Conversion (Integer, thread_t);
 299
 300    type mutex_t is limited private;
 301
 302    type cond_t is limited private;
 303
 304    type thread_key_t is private;
 305
 306    function thr_create
 307      (stack_base    : System.Address;
 308       stack_size    : size_t;
 309       start_routine : Thread_Body;
 310       arg           : System.Address;
 311       flags         : int;
 312       new_thread    : access thread_t) return int;
 313    pragma Import (C, thr_create, "thr_create");
 314
 315    function thr_min_stack return size_t;
 316    pragma Import (C, thr_min_stack, "thr_min_stack");
 317
 318    function thr_self return thread_t;
 319    pragma Import (C, thr_self, "thr_self");
 320
 321    function mutex_init
 322      (mutex : access mutex_t;
 323       mtype : int;
 324       arg   : System.Address) return int;
 325    pragma Import (C, mutex_init, "mutex_init");
 326
 327    function mutex_destroy (mutex : access mutex_t) return int;
 328    pragma Import (C, mutex_destroy, "mutex_destroy");
 329
 330    function mutex_lock (mutex : access mutex_t) return int;
 331    pragma Import (C, mutex_lock, "mutex_lock");
 332
 333    function mutex_unlock (mutex : access mutex_t) return int;
 334    pragma Import (C, mutex_unlock, "mutex_unlock");
 335
 336    function cond_init
 337      (cond  : access cond_t;
 338       ctype : int;
 339       arg   : int) return int;
 340    pragma Import (C, cond_init, "cond_init");
 341
 342    function cond_wait
 343      (cond : access cond_t; mutex : access mutex_t) return int;
 344    pragma Import (C, cond_wait, "cond_wait");
 345
 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");
 351
 352    function cond_signal (cond : access cond_t) return int;
 353    pragma Import (C, cond_signal, "cond_signal");
 354
 355    function cond_destroy (cond : access cond_t) return int;
 356    pragma Import (C, cond_destroy, "cond_destroy");
 357
 358    function thr_setspecific
 359      (key : thread_key_t; value : System.Address) return int;
 360    pragma Import (C, thr_setspecific, "thr_setspecific");
 361
 362    function thr_getspecific
 363      (key   : thread_key_t;
 364       value : access System.Address) return int;
 365    pragma Import (C, thr_getspecific, "thr_getspecific");
 366
 367    function thr_keycreate
 368      (key : access thread_key_t; destructor : System.Address) return int;
 369    pragma Import (C, thr_keycreate, "thr_keycreate");
 370
 371    function thr_setprio (thread : thread_t; priority : int) return int;
 372    pragma Import (C, thr_setprio, "thr_setprio");
 373
 374    procedure thr_exit (status : System.Address);
 375    pragma Import (C, thr_exit, "thr_exit");
 376
 377    function thr_setconcurrency (new_level : int) return int;
 378    pragma Import (C, thr_setconcurrency, "thr_setconcurrency");
 379
 380    function sigwait (set : access sigset_t; sig : access Signal) return int;
 381    pragma Import (C, sigwait, "__posix_sigwait");
 382
 383    function thr_kill (thread : thread_t; sig : Signal) return int;
 384    pragma Import (C, thr_kill, "thr_kill");
 385
 386    function thr_sigsetmask
 387      (how  : int;
 388       set  : access sigset_t;
 389       oset : access sigset_t) return int;
 390    pragma Import (C, thr_sigsetmask, "thr_sigsetmask");
 391
 392    function pthread_sigmask
 393      (how  : int;
 394       set  : access sigset_t;
 395       oset : access sigset_t) return int;
 396    pragma Import (C, pthread_sigmask, "thr_sigsetmask");
 397
 398    function thr_suspend (target_thread : thread_t) return int;
 399    pragma Import (C, thr_suspend, "thr_suspend");
 400
 401    function thr_continue (target_thread : thread_t) return int;
 402    pragma Import (C, thr_continue, "thr_continue");
 403
 404    procedure thr_yield;
 405    pragma Import (C, thr_yield, "thr_yield");
 406
 407    ---------
 408    -- LWP --
 409    ---------
 410
 411    P_PID   : constant := 0;
 412    P_LWPID : constant := 8;
 413
 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;
 419
 420    PC_CLNULL : constant := -1;
 421
 422    RT_NOCHANGE : constant := -1;
 423    RT_TQINF    : constant := -2;
 424    RT_TQDEF    : constant := -3;
 425
 426    PC_CLNMSZ : constant := 16;
 427
 428    PC_VERSION : constant := 1;
 429
 430    type lwpid_t is new int;
 431
 432    type pri_t is new short;
 433
 434    type id_t is new long;
 435
 436    P_MYID : constant := -1;
 437    --  The specified LWP or process is the current one
 438
 439    type struct_pcinfo is record
 440       pc_cid    : id_t;
 441       pc_clname : String (1 .. PC_CLNMSZ);
 442       rt_maxpri : short;
 443    end record;
 444    pragma Convention (C, struct_pcinfo);
 445
 446    type struct_pcparms is record
 447       pc_cid     : id_t;
 448       rt_pri     : pri_t;
 449       rt_tqsecs  : long;
 450       rt_tqnsecs : long;
 451    end record;
 452    pragma Convention (C, struct_pcparms);
 453
 454    function priocntl
 455      (ver     : int;
 456       id_type : int;
 457       id      : lwpid_t;
 458       cmd     : int;
 459       arg     : System.Address) return Interfaces.C.long;
 460    pragma Import (C, priocntl, "__priocntl");
 461
 462    function lwp_self return lwpid_t;
 463    pragma Import (C, lwp_self, "_lwp_self");
 464
 465    type processorid_t is new int;
 466    type processorid_t_ptr is access all processorid_t;
 467
 468    --  Constants for function processor_bind
 469
 470    PBIND_QUERY : constant processorid_t := -2;
 471    --  The processor bindings are not changed
 472
 473    PBIND_NONE  : constant processorid_t := -1;
 474    --  The processor bindings of the specified LWPs are cleared
 475
 476    --  Flags for function p_online
 477
 478    PR_OFFLINE : constant int := 1;
 479    --  Processor is offline, as quiet as possible
 480
 481    PR_ONLINE  : constant int := 2;
 482    --  Processor online
 483
 484    PR_STATUS  : constant int := 3;
 485    --  Value passed to p_online to request status
 486
 487    function p_online (processorid : processorid_t; flag : int) return int;
 488    pragma Import (C, p_online, "p_online");
 489
 490    function processor_bind
 491      (id_type : int;
 492       id      : id_t;
 493       proc_id : processorid_t;
 494       obind   : processorid_t_ptr) return int;
 495    pragma Import (C, processor_bind, "processor_bind");
 496
 497    procedure pthread_init;
 498    --  Dummy procedure to share s-intman.adb with other Solaris targets
 499
 500 private
 501
 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;
 505    end record;
 506    pragma Convention (C, sigset_t);
 507
 508    type pid_t is new long;
 509
 510    type time_t is new long;
 511
 512    type timespec is record
 513       tv_sec  : time_t;
 514       tv_nsec : long;
 515    end record;
 516    pragma Convention (C, timespec);
 517
 518    type clockid_t is new int;
 519    CLOCK_REALTIME : constant clockid_t := 0;
 520
 521    type array_type_9 is array (0 .. 3) of unsigned_char;
 522    type record_type_3 is record
 523       flag  : array_type_9;
 524       Xtype : unsigned_long;
 525    end record;
 526    pragma Convention (C, record_type_3);
 527
 528    type mutex_t is record
 529       flags : record_type_3;
 530       lock  : String (1 .. 8);
 531       data  : String (1 .. 8);
 532    end record;
 533    pragma Convention (C, mutex_t);
 534
 535    type cond_t is record
 536       flag  : array_type_9;
 537       Xtype : unsigned_long;
 538       data  : String (1 .. 8);
 539    end record;
 540    pragma Convention (C, cond_t);
 541
 542    type thread_key_t is new unsigned;
 543
 544 end System.OS_Interface;