gcc/ada/libgnarl/s-linux.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
   4 --                                                                          --
   5 --                          S Y S T E M .  L I N U X                        --
   6 --                                                                          --
   7 --                                  S p e c                                 --
   8 --                                                                          --
   9 --          Copyright (C) 2008-2024, 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 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT 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.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 --                                                                          --
  28 ------------------------------------------------------------------------------
  29
  30 --  This is the default version of this package
  31
  32 --  This package encapsulates cpu specific differences between implementations
  33 --  of GNU/Linux, in order to share s-osinte-linux.ads.
  34
  35 --  PLEASE DO NOT add any with-clauses to this package or remove the pragma
  36 --  Preelaborate. This package is designed to be a bottom-level (leaf) package
  37
  38 with Interfaces.C;
  39 with System.Parameters;
  40
  41 package System.Linux is
  42    pragma Preelaborate;
  43
  44    ----------
  45    -- Time --
  46    ----------
  47
  48    subtype long        is Interfaces.C.long;
  49    subtype suseconds_t is Interfaces.C.long;
  50    type time_t is range -2 ** (System.Parameters.time_t_bits - 1)
  51         .. 2 ** (System.Parameters.time_t_bits - 1) - 1;
  52    subtype clockid_t   is Interfaces.C.int;
  53
  54    type timespec is record
  55       tv_sec  : time_t;
  56       tv_nsec : long;
  57    end record;
  58    pragma Convention (C, timespec);
  59
  60    type timeval is record
  61       tv_sec  : time_t;
  62       tv_usec : suseconds_t;
  63    end record;
  64    pragma Convention (C, timeval);
  65
  66    -----------
  67    -- Errno --
  68    -----------
  69
  70    EAGAIN    : constant := 11;
  71    EINTR     : constant := 4;
  72    EINVAL    : constant := 22;
  73    ENOMEM    : constant := 12;
  74    EPERM     : constant := 1;
  75    ETIMEDOUT : constant := 110;
  76
  77    -------------
  78    -- Signals --
  79    -------------
  80
  81    SIGHUP     : constant := 1; --  hangup
  82    SIGINT     : constant := 2; --  interrupt (rubout)
  83    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  84    SIGILL     : constant := 4; --  illegal instruction (not reset)
  85    SIGTRAP    : constant := 5; --  trace trap (not reset)
  86    SIGIOT     : constant := 6; --  IOT instruction
  87    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the future
  88    SIGFPE     : constant := 8; --  floating point exception
  89    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  90    SIGBUS     : constant := 7; --  bus error
  91    SIGUSR1    : constant := 10; --  user defined signal 1
  92    SIGSEGV    : constant := 11; --  segmentation violation
  93    SIGUSR2    : constant := 12; --  user defined signal 2
  94    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
  95    SIGALRM    : constant := 14; --  alarm clock
  96    SIGTERM    : constant := 15; --  software termination signal from kill
  97    SIGSTKFLT  : constant := 16; --  coprocessor stack fault (Linux)
  98    SIGCLD     : constant := 17; --  alias for SIGCHLD
  99    SIGCHLD    : constant := 17; --  child status change
 100    SIGSTOP    : constant := 19; --  stop (cannot be caught or ignored)
 101    SIGTSTP    : constant := 20; --  user stop requested from tty
 102    SIGCONT    : constant := 18; --  stopped process has been continued
 103    SIGTTIN    : constant := 21; --  background tty read attempted
 104    SIGTTOU    : constant := 22; --  background tty write attempted
 105    SIGURG     : constant := 23; --  urgent condition on IO channel
 106    SIGXCPU    : constant := 24; --  CPU time limit exceeded
 107    SIGXFSZ    : constant := 25; --  filesize limit exceeded
 108    SIGVTALRM  : constant := 26; --  virtual timer expired
 109    SIGPROF    : constant := 27; --  profiling timer expired
 110    SIGWINCH   : constant := 28; --  window size change
 111    SIGPOLL    : constant := 29; --  pollable event occurred
 112    SIGIO      : constant := 29; --  I/O now possible (4.2 BSD)
 113    SIGLOST    : constant := 29; --  File lock lost
 114    SIGPWR     : constant := 30; --  power-fail restart
 115    SIGSYS     : constant := 31; --  bad system call
 116    SIGUNUSED  : constant := 31; --  unused signal (mapped to SIGSYS)
 117    SIG32      : constant := 32; --  glibc internal signal
 118    SIG33      : constant := 33; --  glibc internal signal
 119    SIG34      : constant := 34; --  glibc internal signal
 120
 121    --  struct_sigaction offsets
 122
 123    sa_handler_pos : constant := 0;
 124    sa_mask_pos    : constant := Standard'Address_Size / 8;
 125    sa_flags_pos   : constant := 128 + sa_mask_pos;
 126
 127    SA_SIGINFO  : constant := 16#04#;
 128    SA_ONSTACK  : constant := 16#08000000#;
 129
 130 end System.Linux;