gcc/ada/5sosinte.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA 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) 1997-2002 Free Software Foundation, Inc.          --
  10 --                                                                          --
  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.                                                      --
  21 --                                                                          --
  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.                                      --
  28 --                                                                          --
  29 -- GNARL was developed by the GNARL team at Florida State University.       --
  30 -- Extensive contributions were provided by Ada Core Technologies, Inc.     --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This is a Solaris (native) version of this package
  35
  36 --  This package includes all direct interfaces to OS services
  37 --  that are needed by children of System.
  38
  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.
  42
  43 with Interfaces.C;
  44 package System.OS_Interface is
  45    pragma Preelaborate;
  46
  47    pragma Linker_Options ("-lposix4");
  48    pragma Linker_Options ("-lthread");
  49
  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;
  59
  60    -----------
  61    -- Errno --
  62    -----------
  63
  64    function errno return int;
  65    pragma Import (C, errno, "__get_errno");
  66
  67    EAGAIN    : constant := 11;
  68    EINTR     : constant := 4;
  69    EINVAL    : constant := 22;
  70    ENOMEM    : constant := 12;
  71    ETIME     : constant := 62;
  72    ETIMEDOUT : constant := 145;
  73
  74    -------------
  75    -- Signals --
  76    -------------
  77
  78    Max_Interrupt : constant := 45;
  79    type Signal is new int range 0 .. Max_Interrupt;
  80    for Signal'Size use int'Size;
  81
  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)
 121
 122    type Signal_Set is array (Natural range <>) of Signal;
 123
 124    Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
 125
 126    --  Following signals should not be disturbed.
 127    --  See c-posix-signals.c in FLORIST
 128
 129    Reserved : constant Signal_Set :=
 130      (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV);
 131
 132    type sigset_t is private;
 133
 134    function sigaddset (set : access sigset_t; sig : Signal) return int;
 135    pragma Import (C, sigaddset, "sigaddset");
 136
 137    function sigdelset (set : access sigset_t; sig : Signal) return int;
 138    pragma Import (C, sigdelset, "sigdelset");
 139
 140    function sigfillset (set : access sigset_t) return int;
 141    pragma Import (C, sigfillset, "sigfillset");
 142
 143    function sigismember (set : access sigset_t; sig : Signal) return int;
 144    pragma Import (C, sigismember, "sigismember");
 145
 146    function sigemptyset (set : access sigset_t) return int;
 147    pragma Import (C, sigemptyset, "sigemptyset");
 148
 149    type union_type_3 is new String (1 .. 116);
 150    type siginfo_t is record
 151       si_signo     : int;
 152       si_code      : int;
 153       si_errno     : int;
 154       X_data       : union_type_3;
 155    end record;
 156    pragma Convention (C, siginfo_t);
 157
 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
 166    --  be changed.
 167
 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
 176
 177    type greg_t is new int;
 178
 179    type gregset_t is array (0 .. 18) of greg_t;
 180
 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;
 185       fpu_fsr      : unsigned;
 186       fpu_qcnt     : unsigned_char;
 187       fpu_q_entrysize  : unsigned_char;
 188       fpu_en       : unsigned_char;
 189    end record;
 190    pragma Convention (C, record_type_1);
 191
 192    type array_type_7 is array (Integer range 0 .. 20) of long;
 193    type mcontext_t is record
 194       gregs        : gregset_t;
 195       gwins        : System.Address;
 196       fpregs       : record_type_1;
 197       filler       : array_type_7;
 198    end record;
 199    pragma Convention (C, mcontext_t);
 200
 201    type record_type_2 is record
 202       ss_sp        : System.Address;
 203       ss_size      : int;
 204       ss_flags     : int;
 205    end record;
 206    pragma Convention (C, record_type_2);
 207
 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;
 216    end record;
 217    pragma Convention (C, ucontext_t);
 218
 219    type Signal_Handler is access procedure
 220      (signo   : Signal;
 221       info    : access siginfo_t;
 222       context : access ucontext_t);
 223
 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
 227       sa_flags   : int;
 228       sa_handler : System.Address;
 229       sa_mask    : sigset_t;
 230       sa_resv    : array_type_2;
 231    end record;
 232    pragma Convention (C, struct_sigaction);
 233    type struct_sigaction_ptr is access all struct_sigaction;
 234
 235    SIG_BLOCK   : constant := 1;
 236    SIG_UNBLOCK : constant := 2;
 237    SIG_SETMASK : constant := 3;
 238
 239    SIG_DFL : constant := 0;
 240    SIG_IGN : constant := 1;
 241
 242    function sigaction
 243      (sig  : Signal;
 244       act  : struct_sigaction_ptr;
 245       oact : struct_sigaction_ptr) return int;
 246    pragma Import (C, sigaction, "sigaction");
 247
 248    ----------
 249    -- Time --
 250    ----------
 251
 252    type timespec is private;
 253
 254    type clockid_t is private;
 255
 256    CLOCK_REALTIME : constant clockid_t;
 257
 258    function clock_gettime
 259      (clock_id : clockid_t; tp : access timespec) return int;
 260    pragma Import (C, clock_gettime, "clock_gettime");
 261
 262    function clock_getres
 263      (clock_id : clockid_t; res : access timespec) return int;
 264    pragma Import (C, clock_getres, "clock_getres");
 265
 266    function To_Duration (TS : timespec) return Duration;
 267    pragma Inline (To_Duration);
 268
 269    function To_Timespec (D : Duration) return timespec;
 270    pragma Inline (To_Timespec);
 271
 272    type struct_timeval is private;
 273    --  This is needed on systems that do not have clock_gettime()
 274    --  but do have gettimeofday().
 275
 276    function To_Duration (TV : struct_timeval) return Duration;
 277    pragma Inline (To_Duration);
 278
 279    function To_Timeval (D : Duration) return struct_timeval;
 280    pragma Inline (To_Timeval);
 281
 282    -------------
 283    -- Process --
 284    -------------
 285
 286    type pid_t is private;
 287
 288    function kill (pid : pid_t; sig : Signal) return int;
 289    pragma Import (C, kill, "kill");
 290
 291    function getpid return pid_t;
 292    pragma Import (C, getpid, "getpid");
 293
 294    -------------
 295    -- Threads --
 296    -------------
 297
 298    type Thread_Body is access
 299      function (arg : System.Address) return System.Address;
 300
 301    THR_DETACHED  : constant := 64;
 302    THR_BOUND     : constant := 1;
 303    THR_NEW_LWP   : constant := 2;
 304    USYNC_THREAD  : constant := 0;
 305
 306    type thread_t is private;
 307    subtype Thread_Id is thread_t;
 308
 309    type mutex_t is limited private;
 310
 311    type cond_t is limited private;
 312
 313    type thread_key_t is private;
 314
 315    function thr_create
 316      (stack_base    : System.Address;
 317       stack_size    : size_t;
 318       start_routine : Thread_Body;
 319       arg           : System.Address;
 320       flags         : int;
 321       new_thread    : access thread_t) return int;
 322    pragma Import (C, thr_create, "thr_create");
 323
 324    function thr_min_stack return size_t;
 325    pragma Import (C, thr_min_stack, "thr_min_stack");
 326
 327    function thr_self return thread_t;
 328    pragma Import (C, thr_self, "thr_self");
 329
 330    function mutex_init
 331      (mutex : access mutex_t;
 332       mtype : int;
 333       arg   : System.Address) return int;
 334    pragma Import (C, mutex_init, "mutex_init");
 335
 336    function mutex_destroy (mutex : access mutex_t) return int;
 337    pragma Import (C, mutex_destroy, "mutex_destroy");
 338
 339    function mutex_lock (mutex : access mutex_t) return int;
 340    pragma Import (C, mutex_lock, "mutex_lock");
 341
 342    function mutex_unlock (mutex : access mutex_t) return int;
 343    pragma Import (C, mutex_unlock, "mutex_unlock");
 344
 345    function cond_init
 346      (cond  : access cond_t;
 347       ctype : int;
 348       arg   : int) return int;
 349    pragma Import (C, cond_init, "cond_init");
 350
 351    function cond_wait
 352      (cond : access cond_t; mutex : access mutex_t) return int;
 353    pragma Import (C, cond_wait, "cond_wait");
 354
 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");
 360
 361    function cond_signal (cond : access cond_t) return int;
 362    pragma Import (C, cond_signal, "cond_signal");
 363
 364    function cond_destroy (cond : access cond_t) return int;
 365    pragma Import (C, cond_destroy, "cond_destroy");
 366
 367    function thr_setspecific
 368      (key : thread_key_t; value : System.Address) return int;
 369    pragma Import (C, thr_setspecific, "thr_setspecific");
 370
 371    function thr_getspecific
 372      (key   : thread_key_t;
 373       value : access System.Address) return int;
 374    pragma Import (C, thr_getspecific, "thr_getspecific");
 375
 376    function thr_keycreate
 377      (key : access thread_key_t; destructor : System.Address) return int;
 378    pragma Import (C, thr_keycreate, "thr_keycreate");
 379
 380    function thr_setprio (thread : thread_t; priority : int) return int;
 381    pragma Import (C, thr_setprio, "thr_setprio");
 382
 383    procedure thr_exit (status : System.Address);
 384    pragma Import (C, thr_exit, "thr_exit");
 385
 386    function thr_setconcurrency (new_level : int) return int;
 387    pragma Import (C, thr_setconcurrency, "thr_setconcurrency");
 388
 389    function sigwait (set : access sigset_t; sig : access Signal) return int;
 390    pragma Import (C, sigwait, "__posix_sigwait");
 391
 392    function thr_kill (thread : thread_t; sig : Signal) return int;
 393    pragma Import (C, thr_kill, "thr_kill");
 394
 395    type sigset_t_ptr is access all sigset_t;
 396
 397    function thr_sigsetmask
 398      (how  : int;
 399       set  : sigset_t_ptr;
 400       oset : sigset_t_ptr) return int;
 401    pragma Import (C, thr_sigsetmask, "thr_sigsetmask");
 402
 403    function pthread_sigmask
 404      (how  : int;
 405       set  : sigset_t_ptr;
 406       oset : sigset_t_ptr) return int;
 407    pragma Import (C, pthread_sigmask, "thr_sigsetmask");
 408
 409    function thr_suspend (target_thread : thread_t) return int;
 410    pragma Import (C, thr_suspend, "thr_suspend");
 411
 412    function thr_continue (target_thread : thread_t) return int;
 413    pragma Import (C, thr_continue, "thr_continue");
 414
 415    procedure thr_yield;
 416    pragma Import (C, thr_yield, "thr_yield");
 417
 418    ---------
 419    -- LWP --
 420    ---------
 421
 422    P_PID   : constant := 0;
 423    P_LWPID : constant := 8;
 424
 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;
 430
 431    PC_CLNULL : constant := -1;
 432
 433    RT_NOCHANGE : constant := -1;
 434    RT_TQINF    : constant := -2;
 435    RT_TQDEF    : constant := -3;
 436
 437    PC_CLNMSZ : constant := 16;
 438
 439    PC_VERSION : constant := 1;
 440
 441    type lwpid_t is new int;
 442
 443    type pri_t is new short;
 444
 445    type id_t is new long;
 446
 447    P_MYID : constant := -1;
 448    --  the specified LWP or process is the current one.
 449
 450    type struct_pcinfo is record
 451       pc_cid    : id_t;
 452       pc_clname : String (1 .. PC_CLNMSZ);
 453       rt_maxpri : short;
 454    end record;
 455    pragma Convention (C, struct_pcinfo);
 456
 457    type struct_pcparms is record
 458       pc_cid     : id_t;
 459       rt_pri     : pri_t;
 460       rt_tqsecs  : long;
 461       rt_tqnsecs : long;
 462    end record;
 463    pragma Convention (C, struct_pcparms);
 464
 465    function priocntl
 466      (ver     : int;
 467       id_type : int;
 468       id      : lwpid_t;
 469       cmd     : int;
 470       arg     : System.Address) return Interfaces.C.long;
 471    pragma Import (C, priocntl, "__priocntl");
 472
 473    function lwp_self return lwpid_t;
 474    pragma Import (C, lwp_self, "_lwp_self");
 475
 476    type processorid_t is new int;
 477    type processorid_t_ptr is access all processorid_t;
 478
 479    --  Constants for function processor_bind
 480
 481    PBIND_QUERY : constant processorid_t := -2;
 482    --  the processor bindings are not changed.
 483
 484    PBIND_NONE  : constant processorid_t := -1;
 485    --  the processor bindings of the specified LWPs are cleared.
 486
 487    --  Flags for function p_online
 488
 489    PR_OFFLINE : constant int := 1;
 490    --  processor is offline, as quiet as possible
 491
 492    PR_ONLINE  : constant int := 2;
 493    --  processor online
 494
 495    PR_STATUS  : constant int := 3;
 496    --  value passed to p_online to request status
 497
 498    function p_online (processorid : processorid_t; flag : int) return int;
 499    pragma Import (C, p_online, "p_online");
 500
 501    function processor_bind
 502      (id_type : int;
 503       id      : id_t;
 504       proc_id : processorid_t;
 505       obind   : processorid_t_ptr) return int;
 506    pragma Import (C, processor_bind, "processor_bind");
 507
 508    procedure pthread_init;
 509    --  dummy procedure to share s-intman.adb with other Solaris targets.
 510
 511 private
 512
 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;
 516    end record;
 517    pragma Convention (C, sigset_t);
 518
 519    type pid_t is new long;
 520
 521    type time_t is new long;
 522
 523    type timespec is record
 524       tv_sec  : time_t;
 525       tv_nsec : long;
 526    end record;
 527    pragma Convention (C, timespec);
 528
 529    type clockid_t is new int;
 530    CLOCK_REALTIME : constant clockid_t := 0;
 531
 532    type struct_timeval is record
 533       tv_sec  : long;
 534       tv_usec : long;
 535    end record;
 536    pragma Convention (C, struct_timeval);
 537
 538    type thread_t is new unsigned;
 539
 540    type array_type_9 is array (0 .. 3) of unsigned_char;
 541    type record_type_3 is record
 542       flag  : array_type_9;
 543       Xtype : unsigned_long;
 544    end record;
 545    pragma Convention (C, record_type_3);
 546
 547    type mutex_t is record
 548       flags : record_type_3;
 549       lock  : String (1 .. 8);
 550       data  : String (1 .. 8);
 551    end record;
 552    pragma Convention (C, mutex_t);
 553
 554    type cond_t is record
 555       flag  : array_type_9;
 556       Xtype : unsigned_long;
 557       data  : String (1 .. 8);
 558    end record;
 559    pragma Convention (C, cond_t);
 560
 561    type thread_key_t is new unsigned;
 562
 563 end System.OS_Interface;