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) 2013-2014, Free Software Foundation, Inc.      --
10--
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 3,  or (at your option) any later ver- --
15-- sion.  GNAT 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.                                     --
18--                                                                          --
19-- As a special exception under Section 7 of GPL version 3, you are granted --
20-- additional permissions described in the GCC Runtime Library Exception,   --
21-- version 3.1, as published by the Free Software Foundation.               --
22--                                                                          --
23-- You should have received a copy of the GNU General Public License and    --
24-- a copy of the GCC Runtime Library Exception along with this program;     --
25-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
26-- <http://www.gnu.org/licenses/>.                                          --
27--                                                                          --
28--                                                                          --
29------------------------------------------------------------------------------
30
31--  This is the x32 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
39with Interfaces.C;
40
41package System.Linux is
42   pragma Preelaborate;
43
44   ----------
45   -- Time --
46   ----------
47
48   type time_t       is new Long_Long_Integer;
49   subtype clockid_t is Interfaces.C.int;
50
51   type timespec is record
52      tv_sec  : time_t;
53      tv_nsec : Long_Long_Integer;
54   end record;
55   pragma Convention (C, timespec);
56
57   type timeval is record
58      tv_sec  : time_t;
59      tv_usec : Long_Long_Integer;
60   end record;
61   pragma Convention (C, timeval);
62
63   -----------
64   -- Errno --
65   -----------
66
67   EAGAIN    : constant := 11;
68   EINTR     : constant := 4;
69   EINVAL    : constant := 22;
70   ENOMEM    : constant := 12;
71   EPERM     : constant := 1;
72   ETIMEDOUT : constant := 110;
73
74   -------------
75   -- Signals --
76   -------------
77
78   SIGHUP     : constant := 1; --  hangup
79   SIGINT     : constant := 2; --  interrupt (rubout)
80   SIGQUIT    : constant := 3; --  quit (ASCD FS)
81   SIGILL     : constant := 4; --  illegal instruction (not reset)
82   SIGTRAP    : constant := 5; --  trace trap (not reset)
83   SIGIOT     : constant := 6; --  IOT instruction
84   SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the  future
85   SIGFPE     : constant := 8; --  floating point exception
86   SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
87   SIGBUS     : constant := 7; --  bus error
88   SIGSEGV    : constant := 11; --  segmentation violation
89   SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
90   SIGALRM    : constant := 14; --  alarm clock
91   SIGTERM    : constant := 15; --  software termination signal from kill
92   SIGUSR1    : constant := 10; --  user defined signal 1
93   SIGUSR2    : constant := 12; --  user defined signal 2
94   SIGCLD     : constant := 17; --  alias for SIGCHLD
95   SIGCHLD    : constant := 17; --  child status change
96   SIGPWR     : constant := 30; --  power-fail restart
97   SIGWINCH   : constant := 28; --  window size change
98   SIGURG     : constant := 23; --  urgent condition on IO channel
99   SIGPOLL    : constant := 29; --  pollable event occurred
100   SIGIO      : constant := 29; --  I/O now possible (4.2 BSD)
101   SIGLOST    : constant := 29; --  File lock lost
102   SIGSTOP    : constant := 19; --  stop (cannot be caught or ignored)
103   SIGTSTP    : constant := 20; --  user stop requested from tty
104   SIGCONT    : constant := 18; --  stopped process has been continued
105   SIGTTIN    : constant := 21; --  background tty read attempted
106   SIGTTOU    : constant := 22; --  background tty write attempted
107   SIGVTALRM  : constant := 26; --  virtual timer expired
108   SIGPROF    : constant := 27; --  profiling timer expired
109   SIGXCPU    : constant := 24; --  CPU time limit exceeded
110   SIGXFSZ    : constant := 25; --  filesize limit exceeded
111   SIGUNUSED  : constant := 31; --  unused signal (GNU/Linux)
112   SIGSTKFLT  : constant := 16; --  coprocessor stack fault (Linux)
113   SIGLTHRRES : constant := 32; --  GNU/LinuxThreads restart signal
114   SIGLTHRCAN : constant := 33; --  GNU/LinuxThreads cancel signal
115   SIGLTHRDBG : constant := 34; --  GNU/LinuxThreads debugger signal
116
117   --  struct_sigaction offsets
118
119   sa_handler_pos : constant := 0;
120   sa_mask_pos    : constant := Standard'Address_Size / 8;
121   sa_flags_pos   : constant := 128 + sa_mask_pos;
122
123   SA_SIGINFO  : constant := 16#04#;
124   SA_ONSTACK  : constant := 16#08000000#;
125
126end System.Linux;
127