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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
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4 -- --
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5 -- S Y S T E M . L I N U X --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 2014-2017, Free Software Foundation, Inc. --
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10 -- --
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11 -- GNARL is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- In particular, you can freely distribute your programs built with the --
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23 -- GNAT Pro compiler, including any required library run-time units, using --
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24 -- any licensing terms of your choosing. See the AdaCore Software License --
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25 -- for full details. --
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26 -- --
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27 -- --
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28 ------------------------------------------------------------------------------
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29
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30 -- This is the Android version of this package
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31
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32 -- This package encapsulates cpu specific differences between implementations
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33 -- of GNU/Linux, in order to share s-osinte-linux.ads.
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34
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35 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
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36 -- Preelaborate. This package is designed to be a bottom-level (leaf) package
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37
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38 with Interfaces.C;
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39
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40 package System.Linux is
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41 pragma Preelaborate;
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42
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43 ----------
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44 -- Time --
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45 ----------
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46
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47 subtype long is Interfaces.C.long;
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48 subtype suseconds_t is Interfaces.C.long;
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49 subtype time_t is Interfaces.C.long;
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50 subtype clockid_t is Interfaces.C.int;
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51
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52 type timespec is record
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53 tv_sec : time_t;
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54 tv_nsec : long;
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55 end record;
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56 pragma Convention (C, timespec);
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57
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58 type timeval is record
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59 tv_sec : time_t;
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60 tv_usec : suseconds_t;
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61 end record;
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62 pragma Convention (C, timeval);
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63
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64 -----------
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65 -- Errno --
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66 -----------
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67
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68 EAGAIN : constant := 11;
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69 EINTR : constant := 4;
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70 EINVAL : constant := 22;
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71 ENOMEM : constant := 12;
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72 EPERM : constant := 1;
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73 ETIMEDOUT : constant := 110;
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74
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75 -------------
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76 -- Signals --
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77 -------------
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78
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79 SIGHUP : constant := 1; -- hangup
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80 SIGINT : constant := 2; -- interrupt (rubout)
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81 SIGQUIT : constant := 3; -- quit (ASCD FS)
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82 SIGILL : constant := 4; -- illegal instruction (not reset)
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83 SIGTRAP : constant := 5; -- trace trap (not reset)
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84 SIGIOT : constant := 6; -- IOT instruction
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85 SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
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86 SIGFPE : constant := 8; -- floating point exception
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87 SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
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88 SIGBUS : constant := 7; -- bus error
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89 SIGSEGV : constant := 11; -- segmentation violation
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90 SIGPIPE : constant := 13; -- write on a pipe with no one to read it
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91 SIGALRM : constant := 14; -- alarm clock
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92 SIGTERM : constant := 15; -- software termination signal from kill
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93 SIGUSR1 : constant := 10; -- user defined signal 1
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94 SIGUSR2 : constant := 12; -- user defined signal 2
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95 SIGCLD : constant := 17; -- alias for SIGCHLD
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96 SIGCHLD : constant := 17; -- child status change
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97 SIGPWR : constant := 30; -- power-fail restart
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98 SIGWINCH : constant := 28; -- window size change
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99 SIGURG : constant := 23; -- urgent condition on IO channel
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100 SIGPOLL : constant := 29; -- pollable event occurred
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101 SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
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102 SIGLOST : constant := 29; -- File lock lost
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103 SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
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104 SIGTSTP : constant := 20; -- user stop requested from tty
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105 SIGCONT : constant := 18; -- stopped process has been continued
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106 SIGTTIN : constant := 21; -- background tty read attempted
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107 SIGTTOU : constant := 22; -- background tty write attempted
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108 SIGVTALRM : constant := 26; -- virtual timer expired
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109 SIGPROF : constant := 27; -- profiling timer expired
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110 SIGXCPU : constant := 24; -- CPU time limit exceeded
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111 SIGXFSZ : constant := 25; -- filesize limit exceeded
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112 SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
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113 SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
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114 SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
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115 SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
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116 SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
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117
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118 -- struct_sigaction offsets
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119
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120 sa_handler_pos : constant := 0;
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121 sa_mask_pos : constant := Standard'Address_Size / 8;
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122 sa_flags_pos : constant := 4 + sa_mask_pos;
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123
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124 SA_SIGINFO : constant := 16#00000004#;
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125 SA_ONSTACK : constant := 16#08000000#;
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126 SA_RESTART : constant := 16#10000000#;
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127 SA_NODEFER : constant := 16#40000000#;
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128
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129 end System.Linux;
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