gcc/ada/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) 2008-2014, 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
  40 package System.Linux is
  41    pragma Preelaborate;
  42
  43    ----------
  44    -- Time --
  45    ----------
  46
  47    subtype long        is Interfaces.C.long;
  48    subtype suseconds_t is Interfaces.C.long;
  49    subtype time_t      is Interfaces.C.long;
  50    subtype clockid_t   is Interfaces.C.int;
  51
  52    type timespec is record
  53       tv_sec  : time_t;
  54       tv_nsec : long;
  55    end record;
  56    pragma Convention (C, timespec);
  57
  58    type timeval is record
  59       tv_sec  : time_t;
  60       tv_usec : suseconds_t;
  61    end record;
  62    pragma Convention (C, timeval);
  63
  64    -----------
  65    -- Errno --
  66    -----------
  67
  68    EAGAIN    : constant := 11;
  69    EINTR     : constant := 4;
  70    EINVAL    : constant := 22;
  71    ENOMEM    : constant := 12;
  72    EPERM     : constant := 1;
  73    ETIMEDOUT : constant := 110;
  74
  75    -------------
  76    -- Signals --
  77    -------------
  78
  79    SIGHUP     : constant := 1; --  hangup
  80    SIGINT     : constant := 2; --  interrupt (rubout)
  81    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  82    SIGILL     : constant := 4; --  illegal instruction (not reset)
  83    SIGTRAP    : constant := 5; --  trace trap (not reset)
  84    SIGIOT     : constant := 6; --  IOT instruction
  85    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the  future
  86    SIGFPE     : constant := 8; --  floating point exception
  87    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  88    SIGBUS     : constant := 7; --  bus error
  89    SIGSEGV    : constant := 11; --  segmentation violation
  90    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
  91    SIGALRM    : constant := 14; --  alarm clock
  92    SIGTERM    : constant := 15; --  software termination signal from kill
  93    SIGUSR1    : constant := 10; --  user defined signal 1
  94    SIGUSR2    : constant := 12; --  user defined signal 2
  95    SIGCLD     : constant := 17; --  alias for SIGCHLD
  96    SIGCHLD    : constant := 17; --  child status change
  97    SIGPWR     : constant := 30; --  power-fail restart
  98    SIGWINCH   : constant := 28; --  window size change
  99    SIGURG     : constant := 23; --  urgent condition on IO channel
 100    SIGPOLL    : constant := 29; --  pollable event occurred
 101    SIGIO      : constant := 29; --  I/O now possible (4.2 BSD)
 102    SIGLOST    : constant := 29; --  File lock lost
 103    SIGSTOP    : constant := 19; --  stop (cannot be caught or ignored)
 104    SIGTSTP    : constant := 20; --  user stop requested from tty
 105    SIGCONT    : constant := 18; --  stopped process has been continued
 106    SIGTTIN    : constant := 21; --  background tty read attempted
 107    SIGTTOU    : constant := 22; --  background tty write attempted
 108    SIGVTALRM  : constant := 26; --  virtual timer expired
 109    SIGPROF    : constant := 27; --  profiling timer expired
 110    SIGXCPU    : constant := 24; --  CPU time limit exceeded
 111    SIGXFSZ    : constant := 25; --  filesize limit exceeded
 112    SIGUNUSED  : constant := 31; --  unused signal (GNU/Linux)
 113    SIGSTKFLT  : constant := 16; --  coprocessor stack fault (Linux)
 114    SIGLTHRRES : constant := 32; --  GNU/LinuxThreads restart signal
 115    SIGLTHRCAN : constant := 33; --  GNU/LinuxThreads cancel signal
 116    SIGLTHRDBG : constant := 34; --  GNU/LinuxThreads debugger signal
 117
 118    --  struct_sigaction offsets
 119
 120    sa_handler_pos : constant := 0;
 121    sa_mask_pos    : constant := Standard'Address_Size / 8;
 122    sa_flags_pos   : constant := 128 + sa_mask_pos;
 123
 124    SA_SIGINFO  : constant := 16#04#;
 125    SA_ONSTACK  : constant := 16#08000000#;
 126
 127 end System.Linux;