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) 1995-2006, 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 children of System.
  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 with Unchecked_Conversion;
  45
  46 package System.OS_Interface is
  47    pragma Preelaborate;
  48
  49    pragma Linker_Options ("-lposix4");
  50    pragma Linker_Options ("-lthread");
  51
  52    subtype int            is Interfaces.C.int;
  53    subtype short          is Interfaces.C.short;
  54    subtype long           is Interfaces.C.long;
  55    subtype unsigned       is Interfaces.C.unsigned;
  56    subtype unsigned_short is Interfaces.C.unsigned_short;
  57    subtype unsigned_long  is Interfaces.C.unsigned_long;
  58    subtype unsigned_char  is Interfaces.C.unsigned_char;
  59    subtype plain_char     is Interfaces.C.plain_char;
  60    subtype size_t         is Interfaces.C.size_t;
  61
  62    -----------
  63    -- Errno --
  64    -----------
  65
  66    function errno return int;
  67    pragma Import (C, errno, "__get_errno");
  68
  69    EAGAIN    : constant := 11;
  70    EINTR     : constant := 4;
  71    EINVAL    : constant := 22;
  72    ENOMEM    : constant := 12;
  73    ETIME     : constant := 62;
  74    ETIMEDOUT : constant := 145;
  75
  76    -------------
  77    -- Signals --
  78    -------------
  79
  80    Max_Interrupt : constant := 45;
  81    type Signal is new int range 0 .. Max_Interrupt;
  82    for Signal'Size use int'Size;
  83
  84    SIGHUP     : constant := 1; --  hangup
  85    SIGINT     : constant := 2; --  interrupt (rubout)
  86    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  87    SIGILL     : constant := 4; --  illegal instruction (not reset)
  88    SIGTRAP    : constant := 5; --  trace trap (not reset)
  89    SIGIOT     : constant := 6; --  IOT instruction
  90    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the  future
  91    SIGEMT     : constant := 7; --  EMT instruction
  92    SIGFPE     : constant := 8; --  floating point exception
  93    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  94    SIGBUS     : constant := 10; --  bus error
  95    SIGSEGV    : constant := 11; --  segmentation violation
  96    SIGSYS     : constant := 12; --  bad argument to system call
  97    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
  98    SIGALRM    : constant := 14; --  alarm clock
  99    SIGTERM    : constant := 15; --  software termination signal from kill
 100    SIGUSR1    : constant := 16; --  user defined signal 1
 101    SIGUSR2    : constant := 17; --  user defined signal 2
 102    SIGCLD     : constant := 18; --  alias for SIGCHLD
 103    SIGCHLD    : constant := 18; --  child status change
 104    SIGPWR     : constant := 19; --  power-fail restart
 105    SIGWINCH   : constant := 20; --  window size change
 106    SIGURG     : constant := 21; --  urgent condition on IO channel
 107    SIGPOLL    : constant := 22; --  pollable event occurred
 108    SIGIO      : constant := 22; --  I/O possible (Solaris SIGPOLL alias)
 109    SIGSTOP    : constant := 23; --  stop (cannot be caught or ignored)
 110    SIGTSTP    : constant := 24; --  user stop requested from tty
 111    SIGCONT    : constant := 25; --  stopped process has been continued
 112    SIGTTIN    : constant := 26; --  background tty read attempted
 113    SIGTTOU    : constant := 27; --  background tty write attempted
 114    SIGVTALRM  : constant := 28; --  virtual timer expired
 115    SIGPROF    : constant := 29; --  profiling timer expired
 116    SIGXCPU    : constant := 30; --  CPU time limit exceeded
 117    SIGXFSZ    : constant := 31; --  filesize limit exceeded
 118    SIGWAITING : constant := 32; --  process's lwps blocked (Solaris)
 119    SIGLWP     : constant := 33; --  used by thread library (Solaris)
 120    SIGFREEZE  : constant := 34; --  used by CPR (Solaris)
 121    SIGTHAW    : constant := 35; --  used by CPR (Solaris)
 122    SIGCANCEL  : constant := 36; --  thread cancellation signal (libthread)
 123
 124    type Signal_Set is array (Natural range <>) of Signal;
 125
 126    Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
 127
 128    --  Following signals should not be disturbed.
 129    --  See c-posix-signals.c in FLORIST
 130
 131    Reserved : constant Signal_Set :=
 132      (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV);
 133
 134    type sigset_t is private;
 135
 136    function sigaddset (set : access sigset_t; sig : Signal) return int;
 137    pragma Import (C, sigaddset, "sigaddset");
 138
 139    function sigdelset (set : access sigset_t; sig : Signal) return int;
 140    pragma Import (C, sigdelset, "sigdelset");
 141
 142    function sigfillset (set : access sigset_t) return int;
 143    pragma Import (C, sigfillset, "sigfillset");
 144
 145    function sigismember (set : access sigset_t; sig : Signal) return int;
 146    pragma Import (C, sigismember, "sigismember");
 147
 148    function sigemptyset (set : access sigset_t) return int;
 149    pragma Import (C, sigemptyset, "sigemptyset");
 150
 151    type union_type_3 is new String (1 .. 116);
 152    type siginfo_t is record
 153       si_signo     : int;
 154       si_code      : int;
 155       si_errno     : int;
 156       X_data       : union_type_3;
 157    end record;
 158    pragma Convention (C, siginfo_t);
 159
 160    --  The types mcontext_t and gregset_t are part of the ucontext_t
 161    --  information, which is specific to Solaris2.4 for SPARC
 162    --  The ucontext_t info seems to be used by the handler
 163    --  for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or
 164    --  a Constraint_Error (bad pointer).  The original code that did this
 165    --  is suspect, so it is not clear whether we really need this part of
 166    --  the signal context information, or perhaps something else.
 167    --  More analysis is needed, after which these declarations may need to
 168    --  be changed.
 169
 170    FPE_INTDIV  : constant := 1; --  integer divide by zero
 171    FPE_INTOVF  : constant := 2; --  integer overflow
 172    FPE_FLTDIV  : constant := 3; --  floating point divide by zero
 173    FPE_FLTOVF  : constant := 4; --  floating point overflow
 174    FPE_FLTUND  : constant := 5; --  floating point underflow
 175    FPE_FLTRES  : constant := 6; --  floating point inexact result
 176    FPE_FLTINV  : constant := 7; --  invalid floating point operation
 177    FPE_FLTSUB  : constant := 8; --  subscript out of range
 178
 179    type greg_t is new int;
 180
 181    type gregset_t is array (0 .. 18) of greg_t;
 182
 183    type union_type_2 is new String (1 .. 128);
 184    type record_type_1 is record
 185       fpu_fr       : union_type_2;
 186       fpu_q        : System.Address;
 187       fpu_fsr      : unsigned;
 188       fpu_qcnt     : unsigned_char;
 189       fpu_q_entrysize  : unsigned_char;
 190       fpu_en       : unsigned_char;
 191    end record;
 192    pragma Convention (C, record_type_1);
 193
 194    type array_type_7 is array (Integer range 0 .. 20) of long;
 195    type mcontext_t is record
 196       gregs        : gregset_t;
 197       gwins        : System.Address;
 198       fpregs       : record_type_1;
 199       filler       : array_type_7;
 200    end record;
 201    pragma Convention (C, mcontext_t);
 202
 203    type record_type_2 is record
 204       ss_sp        : System.Address;
 205       ss_size      : int;
 206       ss_flags     : int;
 207    end record;
 208    pragma Convention (C, record_type_2);
 209
 210    type array_type_8 is array (Integer range 0 .. 22) of long;
 211    type ucontext_t is record
 212       uc_flags     : unsigned_long;
 213       uc_link      : System.Address;
 214       uc_sigmask   : sigset_t;
 215       uc_stack     : record_type_2;
 216       uc_mcontext  : mcontext_t;
 217       uc_filler    : array_type_8;
 218    end record;
 219    pragma Convention (C, ucontext_t);
 220
 221    type Signal_Handler is access procedure
 222      (signo   : Signal;
 223       info    : access siginfo_t;
 224       context : access ucontext_t);
 225
 226    type union_type_1 is new plain_char;
 227    type array_type_2 is array (Integer range 0 .. 1) of int;
 228    type struct_sigaction is record
 229       sa_flags   : int;
 230       sa_handler : System.Address;
 231       sa_mask    : sigset_t;
 232       sa_resv    : array_type_2;
 233    end record;
 234    pragma Convention (C, struct_sigaction);
 235    type struct_sigaction_ptr is access all struct_sigaction;
 236
 237    SIG_BLOCK   : constant := 1;
 238    SIG_UNBLOCK : constant := 2;
 239    SIG_SETMASK : constant := 3;
 240
 241    SIG_DFL : constant := 0;
 242    SIG_IGN : constant := 1;
 243
 244    function sigaction
 245      (sig  : Signal;
 246       act  : struct_sigaction_ptr;
 247       oact : struct_sigaction_ptr) return int;
 248    pragma Import (C, sigaction, "sigaction");
 249
 250    ----------
 251    -- Time --
 252    ----------
 253
 254    type timespec is private;
 255
 256    type clockid_t is private;
 257
 258    CLOCK_REALTIME : constant clockid_t;
 259
 260    function clock_gettime
 261      (clock_id : clockid_t; tp : access timespec) return int;
 262    pragma Import (C, clock_gettime, "clock_gettime");
 263
 264    function clock_getres
 265      (clock_id : clockid_t; res : access timespec) return int;
 266    pragma Import (C, clock_getres, "clock_getres");
 267
 268    function To_Duration (TS : timespec) return Duration;
 269    pragma Inline (To_Duration);
 270
 271    function To_Timespec (D : Duration) return timespec;
 272    pragma Inline (To_Timespec);
 273
 274    type struct_timeval is private;
 275    --  This is needed on systems that do not have clock_gettime()
 276    --  but do have gettimeofday().
 277
 278    function To_Duration (TV : struct_timeval) return Duration;
 279    pragma Inline (To_Duration);
 280
 281    function To_Timeval (D : Duration) return struct_timeval;
 282    pragma Inline (To_Timeval);
 283
 284    -------------
 285    -- Process --
 286    -------------
 287
 288    type pid_t is private;
 289
 290    function kill (pid : pid_t; sig : Signal) return int;
 291    pragma Import (C, kill, "kill");
 292
 293    function getpid return pid_t;
 294    pragma Import (C, getpid, "getpid");
 295
 296    -------------
 297    -- Threads --
 298    -------------
 299
 300    type Thread_Body is access
 301      function (arg : System.Address) return System.Address;
 302
 303    function Thread_Body_Access is new
 304      Unchecked_Conversion (System.Address, Thread_Body);
 305
 306    THR_DETACHED  : constant := 64;
 307    THR_BOUND     : constant := 1;
 308    THR_NEW_LWP   : constant := 2;
 309    USYNC_THREAD  : constant := 0;
 310
 311    type thread_t is new unsigned;
 312    subtype Thread_Id is thread_t;
 313    --  These types should be commented ???
 314
 315    function To_thread_t is new Unchecked_Conversion (Integer, thread_t);
 316
 317    type mutex_t is limited private;
 318
 319    type cond_t is limited private;
 320
 321    type thread_key_t is private;
 322
 323    function thr_create
 324      (stack_base    : System.Address;
 325       stack_size    : size_t;
 326       start_routine : Thread_Body;
 327       arg           : System.Address;
 328       flags         : int;
 329       new_thread    : access thread_t) return int;
 330    pragma Import (C, thr_create, "thr_create");
 331
 332    function thr_min_stack return size_t;
 333    pragma Import (C, thr_min_stack, "thr_min_stack");
 334
 335    function thr_self return thread_t;
 336    pragma Import (C, thr_self, "thr_self");
 337
 338    function mutex_init
 339      (mutex : access mutex_t;
 340       mtype : int;
 341       arg   : System.Address) return int;
 342    pragma Import (C, mutex_init, "mutex_init");
 343
 344    function mutex_destroy (mutex : access mutex_t) return int;
 345    pragma Import (C, mutex_destroy, "mutex_destroy");
 346
 347    function mutex_lock (mutex : access mutex_t) return int;
 348    pragma Import (C, mutex_lock, "mutex_lock");
 349
 350    function mutex_unlock (mutex : access mutex_t) return int;
 351    pragma Import (C, mutex_unlock, "mutex_unlock");
 352
 353    function cond_init
 354      (cond  : access cond_t;
 355       ctype : int;
 356       arg   : int) return int;
 357    pragma Import (C, cond_init, "cond_init");
 358
 359    function cond_wait
 360      (cond : access cond_t; mutex : access mutex_t) return int;
 361    pragma Import (C, cond_wait, "cond_wait");
 362
 363    function cond_timedwait
 364      (cond    : access cond_t;
 365       mutex   : access mutex_t;
 366       abstime : access timespec) return int;
 367    pragma Import (C, cond_timedwait, "cond_timedwait");
 368
 369    function cond_signal (cond : access cond_t) return int;
 370    pragma Import (C, cond_signal, "cond_signal");
 371
 372    function cond_destroy (cond : access cond_t) return int;
 373    pragma Import (C, cond_destroy, "cond_destroy");
 374
 375    function thr_setspecific
 376      (key : thread_key_t; value : System.Address) return int;
 377    pragma Import (C, thr_setspecific, "thr_setspecific");
 378
 379    function thr_getspecific
 380      (key   : thread_key_t;
 381       value : access System.Address) return int;
 382    pragma Import (C, thr_getspecific, "thr_getspecific");
 383
 384    function thr_keycreate
 385      (key : access thread_key_t; destructor : System.Address) return int;
 386    pragma Import (C, thr_keycreate, "thr_keycreate");
 387
 388    function thr_setprio (thread : thread_t; priority : int) return int;
 389    pragma Import (C, thr_setprio, "thr_setprio");
 390
 391    procedure thr_exit (status : System.Address);
 392    pragma Import (C, thr_exit, "thr_exit");
 393
 394    function thr_setconcurrency (new_level : int) return int;
 395    pragma Import (C, thr_setconcurrency, "thr_setconcurrency");
 396
 397    function sigwait (set : access sigset_t; sig : access Signal) return int;
 398    pragma Import (C, sigwait, "__posix_sigwait");
 399
 400    function thr_kill (thread : thread_t; sig : Signal) return int;
 401    pragma Import (C, thr_kill, "thr_kill");
 402
 403    function thr_sigsetmask
 404      (how  : int;
 405       set  : access sigset_t;
 406       oset : access sigset_t) return int;
 407    pragma Import (C, thr_sigsetmask, "thr_sigsetmask");
 408
 409    function pthread_sigmask
 410      (how  : int;
 411       set  : access sigset_t;
 412       oset : access sigset_t) return int;
 413    pragma Import (C, pthread_sigmask, "thr_sigsetmask");
 414
 415    function thr_suspend (target_thread : thread_t) return int;
 416    pragma Import (C, thr_suspend, "thr_suspend");
 417
 418    function thr_continue (target_thread : thread_t) return int;
 419    pragma Import (C, thr_continue, "thr_continue");
 420
 421    procedure thr_yield;
 422    pragma Import (C, thr_yield, "thr_yield");
 423
 424    ---------
 425    -- LWP --
 426    ---------
 427
 428    P_PID   : constant := 0;
 429    P_LWPID : constant := 8;
 430
 431    PC_GETCID    : constant := 0;
 432    PC_GETCLINFO : constant := 1;
 433    PC_SETPARMS  : constant := 2;
 434    PC_GETPARMS  : constant := 3;
 435    PC_ADMIN     : constant := 4;
 436
 437    PC_CLNULL : constant := -1;
 438
 439    RT_NOCHANGE : constant := -1;
 440    RT_TQINF    : constant := -2;
 441    RT_TQDEF    : constant := -3;
 442
 443    PC_CLNMSZ : constant := 16;
 444
 445    PC_VERSION : constant := 1;
 446
 447    type lwpid_t is new int;
 448
 449    type pri_t is new short;
 450
 451    type id_t is new long;
 452
 453    P_MYID : constant := -1;
 454    --  the specified LWP or process is the current one.
 455
 456    type struct_pcinfo is record
 457       pc_cid    : id_t;
 458       pc_clname : String (1 .. PC_CLNMSZ);
 459       rt_maxpri : short;
 460    end record;
 461    pragma Convention (C, struct_pcinfo);
 462
 463    type struct_pcparms is record
 464       pc_cid     : id_t;
 465       rt_pri     : pri_t;
 466       rt_tqsecs  : long;
 467       rt_tqnsecs : long;
 468    end record;
 469    pragma Convention (C, struct_pcparms);
 470
 471    function priocntl
 472      (ver     : int;
 473       id_type : int;
 474       id      : lwpid_t;
 475       cmd     : int;
 476       arg     : System.Address) return Interfaces.C.long;
 477    pragma Import (C, priocntl, "__priocntl");
 478
 479    function lwp_self return lwpid_t;
 480    pragma Import (C, lwp_self, "_lwp_self");
 481
 482    type processorid_t is new int;
 483    type processorid_t_ptr is access all processorid_t;
 484
 485    --  Constants for function processor_bind
 486
 487    PBIND_QUERY : constant processorid_t := -2;
 488    --  the processor bindings are not changed.
 489
 490    PBIND_NONE  : constant processorid_t := -1;
 491    --  the processor bindings of the specified LWPs are cleared.
 492
 493    --  Flags for function p_online
 494
 495    PR_OFFLINE : constant int := 1;
 496    --  processor is offline, as quiet as possible
 497
 498    PR_ONLINE  : constant int := 2;
 499    --  processor online
 500
 501    PR_STATUS  : constant int := 3;
 502    --  value passed to p_online to request status
 503
 504    function p_online (processorid : processorid_t; flag : int) return int;
 505    pragma Import (C, p_online, "p_online");
 506
 507    function processor_bind
 508      (id_type : int;
 509       id      : id_t;
 510       proc_id : processorid_t;
 511       obind   : processorid_t_ptr) return int;
 512    pragma Import (C, processor_bind, "processor_bind");
 513
 514    procedure pthread_init;
 515    --  dummy procedure to share s-intman.adb with other Solaris targets.
 516
 517 private
 518
 519    type array_type_1 is array (0 .. 3) of unsigned_long;
 520    type sigset_t is record
 521       X_X_sigbits : array_type_1;
 522    end record;
 523    pragma Convention (C, sigset_t);
 524
 525    type pid_t is new long;
 526
 527    type time_t is new long;
 528
 529    type timespec is record
 530       tv_sec  : time_t;
 531       tv_nsec : long;
 532    end record;
 533    pragma Convention (C, timespec);
 534
 535    type clockid_t is new int;
 536    CLOCK_REALTIME : constant clockid_t := 0;
 537
 538    type struct_timeval is record
 539       tv_sec  : long;
 540       tv_usec : long;
 541    end record;
 542    pragma Convention (C, struct_timeval);
 543
 544    type array_type_9 is array (0 .. 3) of unsigned_char;
 545    type record_type_3 is record
 546       flag  : array_type_9;
 547       Xtype : unsigned_long;
 548    end record;
 549    pragma Convention (C, record_type_3);
 550
 551    type mutex_t is record
 552       flags : record_type_3;
 553       lock  : String (1 .. 8);
 554       data  : String (1 .. 8);
 555    end record;
 556    pragma Convention (C, mutex_t);
 557
 558    type cond_t is record
 559       flag  : array_type_9;
 560       Xtype : unsigned_long;
 561       data  : String (1 .. 8);
 562    end record;
 563    pragma Convention (C, cond_t);
 564
 565    type thread_key_t is new unsigned;
 566
 567 end System.OS_Interface;