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, 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,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, 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 ------------------------------------------------------------------------------
  30
  31 --  This is the default version of this package
  32
  33 --  This package encapsulates cpu specific differences between implementations
  34 --  of GNU/Linux, in order to share s-osinte-linux.ads.
  35
  36 --  PLEASE DO NOT add any with-clauses to this package or remove the pragma
  37 --  Preelaborate. This package is designed to be a bottom-level (leaf) package
  38
  39 package System.Linux is
  40    pragma Preelaborate;
  41
  42    -----------
  43    -- Errno --
  44    -----------
  45
  46    EAGAIN    : constant := 11;
  47    EINTR     : constant := 4;
  48    EINVAL    : constant := 22;
  49    ENOMEM    : constant := 12;
  50    EPERM     : constant := 1;
  51    ETIMEDOUT : constant := 110;
  52
  53    -------------
  54    -- Signals --
  55    -------------
  56
  57    SIGHUP     : constant := 1; --  hangup
  58    SIGINT     : constant := 2; --  interrupt (rubout)
  59    SIGQUIT    : constant := 3; --  quit (ASCD FS)
  60    SIGILL     : constant := 4; --  illegal instruction (not reset)
  61    SIGTRAP    : constant := 5; --  trace trap (not reset)
  62    SIGIOT     : constant := 6; --  IOT instruction
  63    SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the  future
  64    SIGFPE     : constant := 8; --  floating point exception
  65    SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
  66    SIGBUS     : constant := 7; --  bus error
  67    SIGSEGV    : constant := 11; --  segmentation violation
  68    SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
  69    SIGALRM    : constant := 14; --  alarm clock
  70    SIGTERM    : constant := 15; --  software termination signal from kill
  71    SIGUSR1    : constant := 10; --  user defined signal 1
  72    SIGUSR2    : constant := 12; --  user defined signal 2
  73    SIGCLD     : constant := 17; --  alias for SIGCHLD
  74    SIGCHLD    : constant := 17; --  child status change
  75    SIGPWR     : constant := 30; --  power-fail restart
  76    SIGWINCH   : constant := 28; --  window size change
  77    SIGURG     : constant := 23; --  urgent condition on IO channel
  78    SIGPOLL    : constant := 29; --  pollable event occurred
  79    SIGIO      : constant := 29; --  I/O now possible (4.2 BSD)
  80    SIGLOST    : constant := 29; --  File lock lost
  81    SIGSTOP    : constant := 19; --  stop (cannot be caught or ignored)
  82    SIGTSTP    : constant := 20; --  user stop requested from tty
  83    SIGCONT    : constant := 18; --  stopped process has been continued
  84    SIGTTIN    : constant := 21; --  background tty read attempted
  85    SIGTTOU    : constant := 22; --  background tty write attempted
  86    SIGVTALRM  : constant := 26; --  virtual timer expired
  87    SIGPROF    : constant := 27; --  profiling timer expired
  88    SIGXCPU    : constant := 24; --  CPU time limit exceeded
  89    SIGXFSZ    : constant := 25; --  filesize limit exceeded
  90    SIGUNUSED  : constant := 31; --  unused signal (GNU/Linux)
  91    SIGSTKFLT  : constant := 16; --  coprocessor stack fault (Linux)
  92    SIGLTHRRES : constant := 32; --  GNU/LinuxThreads restart signal
  93    SIGLTHRCAN : constant := 33; --  GNU/LinuxThreads cancel signal
  94    SIGLTHRDBG : constant := 34; --  GNU/LinuxThreads debugger signal
  95
  96    --  struct_sigaction offsets
  97
  98    sa_mask_pos  : constant := Standard'Address_Size / 8;
  99    sa_flags_pos : constant := 128 + sa_mask_pos;
 100
 101    SA_SIGINFO  : constant := 16#04#;
 102    SA_ONSTACK  : constant := 16#08000000#;
 103
 104    type struct_pthread_fast_lock is record
 105       status   : Long_Integer;
 106       spinlock : Integer;
 107    end record;
 108    pragma Convention (C, struct_pthread_fast_lock);
 109
 110    type pthread_mutex_t is record
 111       m_reserved : Integer;
 112       m_count    : Integer;
 113       m_owner    : System.Address;
 114       m_kind     : Integer;
 115       m_lock     : struct_pthread_fast_lock;
 116    end record;
 117    pragma Convention (C, pthread_mutex_t);
 118
 119 end System.Linux;