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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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4 -- --
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5 -- S Y S T E M . O S _ I N T E R F A C E --
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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) 1991-2017, Florida State University --
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145
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10 -- Copyright (C) 1995-2019, Free Software Foundation, Inc. --
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111
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11 -- --
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12 -- GNAT is free software; you can redistribute it and/or modify it under --
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13 -- terms of the GNU General Public License as published by the Free Soft- --
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14 -- ware Foundation; either version 3, or (at your option) any later ver- --
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15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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17 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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18 -- --
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19 -- As a special exception under Section 7 of GPL version 3, you are granted --
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20 -- additional permissions described in the GCC Runtime Library Exception, --
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21 -- version 3.1, as published by the Free Software Foundation. --
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22 -- --
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23 -- You should have received a copy of the GNU General Public License and --
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24 -- a copy of the GCC Runtime Library Exception along with this program; --
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25 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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26 -- <http://www.gnu.org/licenses/>. --
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27 -- --
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28 -- GNARL was developed by the GNARL team at Florida State University. --
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29 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
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30 -- --
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31 ------------------------------------------------------------------------------
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32
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33 -- This is a Solaris (native) version of this package
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34
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35 -- This package includes all direct interfaces to OS services
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36 -- that are needed by the tasking run-time (libgnarl).
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37
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38 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
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39 -- Preelaborate. This package is designed to be a bottom-level (leaf) package.
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40
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41 with Interfaces.C;
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42
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43 with Ada.Unchecked_Conversion;
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44
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45 package System.OS_Interface is
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46 pragma Preelaborate;
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47
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48 pragma Linker_Options ("-lposix4");
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49 pragma Linker_Options ("-lthread");
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50
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51 subtype int is Interfaces.C.int;
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52 subtype short is Interfaces.C.short;
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53 subtype long is Interfaces.C.long;
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54 subtype unsigned is Interfaces.C.unsigned;
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55 subtype unsigned_short is Interfaces.C.unsigned_short;
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56 subtype unsigned_long is Interfaces.C.unsigned_long;
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57 subtype unsigned_char is Interfaces.C.unsigned_char;
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58 subtype plain_char is Interfaces.C.plain_char;
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59 subtype size_t is Interfaces.C.size_t;
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60
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61 -----------
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62 -- Errno --
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63 -----------
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64
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65 function errno return int;
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66 pragma Import (C, errno, "__get_errno");
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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 ETIME : constant := 62;
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73 ETIMEDOUT : constant := 145;
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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 Max_Interrupt : constant := 45;
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80 type Signal is new int range 0 .. Max_Interrupt;
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81 for Signal'Size use int'Size;
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82
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83 SIGHUP : constant := 1; -- hangup
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84 SIGINT : constant := 2; -- interrupt (rubout)
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85 SIGQUIT : constant := 3; -- quit (ASCD FS)
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86 SIGILL : constant := 4; -- illegal instruction (not reset)
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87 SIGTRAP : constant := 5; -- trace trap (not reset)
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88 SIGIOT : constant := 6; -- IOT instruction
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89 SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
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90 SIGEMT : constant := 7; -- EMT instruction
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91 SIGFPE : constant := 8; -- floating point exception
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92 SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
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93 SIGBUS : constant := 10; -- bus error
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94 SIGSEGV : constant := 11; -- segmentation violation
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95 SIGSYS : constant := 12; -- bad argument to system call
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96 SIGPIPE : constant := 13; -- write on a pipe with no one to read it
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97 SIGALRM : constant := 14; -- alarm clock
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98 SIGTERM : constant := 15; -- software termination signal from kill
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99 SIGUSR1 : constant := 16; -- user defined signal 1
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100 SIGUSR2 : constant := 17; -- user defined signal 2
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101 SIGCLD : constant := 18; -- alias for SIGCHLD
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102 SIGCHLD : constant := 18; -- child status change
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103 SIGPWR : constant := 19; -- power-fail restart
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104 SIGWINCH : constant := 20; -- window size change
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105 SIGURG : constant := 21; -- urgent condition on IO channel
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106 SIGPOLL : constant := 22; -- pollable event occurred
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107 SIGIO : constant := 22; -- I/O possible (Solaris SIGPOLL alias)
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108 SIGSTOP : constant := 23; -- stop (cannot be caught or ignored)
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109 SIGTSTP : constant := 24; -- user stop requested from tty
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110 SIGCONT : constant := 25; -- stopped process has been continued
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111 SIGTTIN : constant := 26; -- background tty read attempted
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112 SIGTTOU : constant := 27; -- background tty write attempted
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113 SIGVTALRM : constant := 28; -- virtual timer expired
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114 SIGPROF : constant := 29; -- profiling timer expired
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115 SIGXCPU : constant := 30; -- CPU time limit exceeded
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116 SIGXFSZ : constant := 31; -- filesize limit exceeded
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117 SIGWAITING : constant := 32; -- process's lwps blocked (Solaris)
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118 SIGLWP : constant := 33; -- used by thread library (Solaris)
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119 SIGFREEZE : constant := 34; -- used by CPR (Solaris)
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120 SIGTHAW : constant := 35; -- used by CPR (Solaris)
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121 SIGCANCEL : constant := 36; -- thread cancellation signal (libthread)
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122
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123 type Signal_Set is array (Natural range <>) of Signal;
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124
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125 Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
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126
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127 -- Following signals should not be disturbed.
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128 -- See c-posix-signals.c in FLORIST.
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129
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130 Reserved : constant Signal_Set :=
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131 (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL, SIGTRAP, SIGSEGV);
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132
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133 type sigset_t is private;
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134
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135 function sigaddset (set : access sigset_t; sig : Signal) return int;
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136 pragma Import (C, sigaddset, "sigaddset");
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137
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138 function sigdelset (set : access sigset_t; sig : Signal) return int;
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139 pragma Import (C, sigdelset, "sigdelset");
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140
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141 function sigfillset (set : access sigset_t) return int;
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142 pragma Import (C, sigfillset, "sigfillset");
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143
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144 function sigismember (set : access sigset_t; sig : Signal) return int;
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145 pragma Import (C, sigismember, "sigismember");
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146
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147 function sigemptyset (set : access sigset_t) return int;
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148 pragma Import (C, sigemptyset, "sigemptyset");
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149
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150 type union_type_3 is new String (1 .. 116);
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151 type siginfo_t is record
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152 si_signo : int;
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153 si_code : int;
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154 si_errno : int;
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155 X_data : union_type_3;
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156 end record;
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157 pragma Convention (C, siginfo_t);
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158
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159 -- The types mcontext_t and gregset_t are part of the ucontext_t
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160 -- information, which is specific to Solaris2.4 for SPARC
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161 -- The ucontext_t info seems to be used by the handler
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162 -- for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or
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163 -- a Constraint_Error (bad pointer). The original code that did this
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164 -- is suspect, so it is not clear whether we really need this part of
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165 -- the signal context information, or perhaps something else.
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166 -- More analysis is needed, after which these declarations may need to
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167 -- be changed.
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168
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169 type greg_t is new int;
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170
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171 type gregset_t is array (0 .. 18) of greg_t;
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172
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173 type union_type_2 is new String (1 .. 128);
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174 type record_type_1 is record
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175 fpu_fr : union_type_2;
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176 fpu_q : System.Address;
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177 fpu_fsr : unsigned;
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178 fpu_qcnt : unsigned_char;
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179 fpu_q_entrysize : unsigned_char;
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180 fpu_en : unsigned_char;
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181 end record;
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182 pragma Convention (C, record_type_1);
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183
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184 type array_type_7 is array (Integer range 0 .. 20) of long;
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185 type mcontext_t is record
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186 gregs : gregset_t;
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187 gwins : System.Address;
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188 fpregs : record_type_1;
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189 filler : array_type_7;
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190 end record;
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191 pragma Convention (C, mcontext_t);
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192
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193 type record_type_2 is record
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194 ss_sp : System.Address;
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195 ss_size : int;
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196 ss_flags : int;
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197 end record;
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198 pragma Convention (C, record_type_2);
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199
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200 type array_type_8 is array (Integer range 0 .. 22) of long;
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201 type ucontext_t is record
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202 uc_flags : unsigned_long;
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203 uc_link : System.Address;
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204 uc_sigmask : sigset_t;
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205 uc_stack : record_type_2;
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206 uc_mcontext : mcontext_t;
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207 uc_filler : array_type_8;
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208 end record;
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209 pragma Convention (C, ucontext_t);
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210
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211 type Signal_Handler is access procedure
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212 (signo : Signal;
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213 info : access siginfo_t;
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214 context : access ucontext_t);
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215
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216 type union_type_1 is new plain_char;
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217 type array_type_2 is array (Integer range 0 .. 1) of int;
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218 type struct_sigaction is record
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219 sa_flags : int;
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220 sa_handler : System.Address;
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221 sa_mask : sigset_t;
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222 sa_resv : array_type_2;
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223 end record;
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224 pragma Convention (C, struct_sigaction);
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225 type struct_sigaction_ptr is access all struct_sigaction;
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226
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227 SIG_BLOCK : constant := 1;
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228 SIG_UNBLOCK : constant := 2;
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229 SIG_SETMASK : constant := 3;
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230
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231 SIG_DFL : constant := 0;
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232 SIG_IGN : constant := 1;
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233
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234 function sigaction
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235 (sig : Signal;
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236 act : struct_sigaction_ptr;
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237 oact : struct_sigaction_ptr) return int;
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238 pragma Import (C, sigaction, "sigaction");
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239
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240 ----------
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241 -- Time --
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242 ----------
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243
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244 type timespec is private;
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245
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246 type clockid_t is new int;
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247
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248 function clock_gettime
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249 (clock_id : clockid_t; tp : access timespec) return int;
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250 pragma Import (C, clock_gettime, "clock_gettime");
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251
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252 function clock_getres
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253 (clock_id : clockid_t; res : access timespec) return int;
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254 pragma Import (C, clock_getres, "clock_getres");
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255
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256 function To_Duration (TS : timespec) return Duration;
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257 pragma Inline (To_Duration);
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258
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259 function To_Timespec (D : Duration) return timespec;
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260 pragma Inline (To_Timespec);
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261
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145
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262 function sysconf (name : int) return long;
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263 pragma Import (C, sysconf);
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264
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265 SC_NPROCESSORS_ONLN : constant := 15;
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266
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111
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267 -------------
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268 -- Process --
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269 -------------
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270
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271 type pid_t is private;
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272
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273 function kill (pid : pid_t; sig : Signal) return int;
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274 pragma Import (C, kill, "kill");
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275
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276 function getpid return pid_t;
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277 pragma Import (C, getpid, "getpid");
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278
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279 -------------
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280 -- Threads --
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281 -------------
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282
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283 type Thread_Body is access
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284 function (arg : System.Address) return System.Address;
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285 pragma Convention (C, Thread_Body);
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286
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287 function Thread_Body_Access is new
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288 Ada.Unchecked_Conversion (System.Address, Thread_Body);
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289
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290 THR_DETACHED : constant := 64;
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291 THR_BOUND : constant := 1;
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292 THR_NEW_LWP : constant := 2;
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293 USYNC_THREAD : constant := 0;
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294
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295 type thread_t is new unsigned;
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296 subtype Thread_Id is thread_t;
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297 -- These types should be commented ???
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298
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299 function To_thread_t is new Ada.Unchecked_Conversion (Integer, thread_t);
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300
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301 type mutex_t is limited private;
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302
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303 type cond_t is limited private;
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304
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305 type thread_key_t is private;
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306
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307 function thr_create
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308 (stack_base : System.Address;
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309 stack_size : size_t;
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310 start_routine : Thread_Body;
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311 arg : System.Address;
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312 flags : int;
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313 new_thread : access thread_t) return int;
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314 pragma Import (C, thr_create, "thr_create");
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315
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316 function thr_min_stack return size_t;
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317 pragma Import (C, thr_min_stack, "thr_min_stack");
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318
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319 function thr_self return thread_t;
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320 pragma Import (C, thr_self, "thr_self");
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321
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322 function mutex_init
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323 (mutex : access mutex_t;
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324 mtype : int;
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325 arg : System.Address) return int;
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326 pragma Import (C, mutex_init, "mutex_init");
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327
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328 function mutex_destroy (mutex : access mutex_t) return int;
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329 pragma Import (C, mutex_destroy, "mutex_destroy");
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330
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331 function mutex_lock (mutex : access mutex_t) return int;
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332 pragma Import (C, mutex_lock, "mutex_lock");
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333
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334 function mutex_unlock (mutex : access mutex_t) return int;
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335 pragma Import (C, mutex_unlock, "mutex_unlock");
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336
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337 function cond_init
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338 (cond : access cond_t;
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339 ctype : int;
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340 arg : int) return int;
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341 pragma Import (C, cond_init, "cond_init");
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342
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343 function cond_wait
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344 (cond : access cond_t; mutex : access mutex_t) return int;
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345 pragma Import (C, cond_wait, "cond_wait");
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346
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347 function cond_timedwait
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348 (cond : access cond_t;
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349 mutex : access mutex_t;
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350 abstime : access timespec) return int;
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351 pragma Import (C, cond_timedwait, "cond_timedwait");
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352
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353 function cond_signal (cond : access cond_t) return int;
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354 pragma Import (C, cond_signal, "cond_signal");
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355
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356 function cond_destroy (cond : access cond_t) return int;
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357 pragma Import (C, cond_destroy, "cond_destroy");
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358
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359 function thr_setspecific
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360 (key : thread_key_t; value : System.Address) return int;
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361 pragma Import (C, thr_setspecific, "thr_setspecific");
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362
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363 function thr_getspecific
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364 (key : thread_key_t;
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365 value : access System.Address) return int;
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366 pragma Import (C, thr_getspecific, "thr_getspecific");
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367
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368 function thr_keycreate
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369 (key : access thread_key_t; destructor : System.Address) return int;
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370 pragma Import (C, thr_keycreate, "thr_keycreate");
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371
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372 function thr_setprio (thread : thread_t; priority : int) return int;
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373 pragma Import (C, thr_setprio, "thr_setprio");
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374
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375 procedure thr_exit (status : System.Address);
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376 pragma Import (C, thr_exit, "thr_exit");
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377
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378 function thr_setconcurrency (new_level : int) return int;
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379 pragma Import (C, thr_setconcurrency, "thr_setconcurrency");
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380
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381 function sigwait (set : access sigset_t; sig : access Signal) return int;
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382 pragma Import (C, sigwait, "__posix_sigwait");
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383
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384 function thr_kill (thread : thread_t; sig : Signal) return int;
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385 pragma Import (C, thr_kill, "thr_kill");
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386
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387 function thr_sigsetmask
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388 (how : int;
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389 set : access sigset_t;
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390 oset : access sigset_t) return int;
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391 pragma Import (C, thr_sigsetmask, "thr_sigsetmask");
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392
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393 function pthread_sigmask
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394 (how : int;
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395 set : access sigset_t;
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396 oset : access sigset_t) return int;
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397 pragma Import (C, pthread_sigmask, "thr_sigsetmask");
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398
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399 function thr_suspend (target_thread : thread_t) return int;
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400 pragma Import (C, thr_suspend, "thr_suspend");
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401
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402 function thr_continue (target_thread : thread_t) return int;
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403 pragma Import (C, thr_continue, "thr_continue");
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404
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405 procedure thr_yield;
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406 pragma Import (C, thr_yield, "thr_yield");
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407
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408 ---------
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409 -- LWP --
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410 ---------
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411
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412 P_PID : constant := 0;
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413 P_LWPID : constant := 8;
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414
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415 PC_GETCID : constant := 0;
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416 PC_GETCLINFO : constant := 1;
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417 PC_SETPARMS : constant := 2;
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418 PC_GETPARMS : constant := 3;
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419 PC_ADMIN : constant := 4;
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420
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421 PC_CLNULL : constant := -1;
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422
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423 RT_NOCHANGE : constant := -1;
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424 RT_TQINF : constant := -2;
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425 RT_TQDEF : constant := -3;
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426
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427 PC_CLNMSZ : constant := 16;
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428
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429 PC_VERSION : constant := 1;
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430
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431 type lwpid_t is new int;
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432
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433 type pri_t is new short;
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434
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435 type id_t is new long;
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436
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437 P_MYID : constant := -1;
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438 -- The specified LWP or process is the current one
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439
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440 type struct_pcinfo is record
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441 pc_cid : id_t;
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442 pc_clname : String (1 .. PC_CLNMSZ);
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443 rt_maxpri : short;
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444 end record;
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445 pragma Convention (C, struct_pcinfo);
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446
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447 type struct_pcparms is record
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448 pc_cid : id_t;
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449 rt_pri : pri_t;
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450 rt_tqsecs : long;
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451 rt_tqnsecs : long;
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452 end record;
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453 pragma Convention (C, struct_pcparms);
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454
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455 function priocntl
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456 (ver : int;
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457 id_type : int;
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458 id : lwpid_t;
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459 cmd : int;
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460 arg : System.Address) return Interfaces.C.long;
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461 pragma Import (C, priocntl, "__priocntl");
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462
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463 function lwp_self return lwpid_t;
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464 pragma Import (C, lwp_self, "_lwp_self");
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465
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466 type processorid_t is new int;
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467 type processorid_t_ptr is access all processorid_t;
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468
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469 -- Constants for function processor_bind
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470
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471 PBIND_QUERY : constant processorid_t := -2;
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472 -- The processor bindings are not changed
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473
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474 PBIND_NONE : constant processorid_t := -1;
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475 -- The processor bindings of the specified LWPs are cleared
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476
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477 -- Flags for function p_online
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478
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479 PR_OFFLINE : constant int := 1;
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480 -- Processor is offline, as quiet as possible
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481
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482 PR_ONLINE : constant int := 2;
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483 -- Processor online
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484
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485 PR_STATUS : constant int := 3;
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486 -- Value passed to p_online to request status
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487
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488 function p_online (processorid : processorid_t; flag : int) return int;
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489 pragma Import (C, p_online, "p_online");
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490
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491 function processor_bind
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492 (id_type : int;
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493 id : id_t;
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494 proc_id : processorid_t;
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495 obind : processorid_t_ptr) return int;
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496 pragma Import (C, processor_bind, "processor_bind");
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497
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498 type psetid_t is new int;
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499
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500 function pset_create (pset : access psetid_t) return int;
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501 pragma Import (C, pset_create, "pset_create");
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502
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503 function pset_assign
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504 (pset : psetid_t;
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505 proc_id : processorid_t;
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506 opset : access psetid_t) return int;
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507 pragma Import (C, pset_assign, "pset_assign");
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508
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509 function pset_bind
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510 (pset : psetid_t;
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511 id_type : int;
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512 id : id_t;
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513 opset : access psetid_t) return int;
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514 pragma Import (C, pset_bind, "pset_bind");
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515
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516 procedure pthread_init;
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517 -- Dummy procedure to share s-intman.adb with other Solaris targets
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518
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519 private
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520
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521 type array_type_1 is array (0 .. 3) of unsigned_long;
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522 type sigset_t is record
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523 X_X_sigbits : array_type_1;
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524 end record;
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525 pragma Convention (C, sigset_t);
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526
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527 type pid_t is new long;
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528
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529 type time_t is new long;
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530
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531 type timespec is record
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532 tv_sec : time_t;
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533 tv_nsec : long;
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534 end record;
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535 pragma Convention (C, timespec);
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536
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537 type array_type_9 is array (0 .. 3) of unsigned_char;
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538 type record_type_3 is record
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539 flag : array_type_9;
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540 Xtype : unsigned_long;
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541 end record;
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542 pragma Convention (C, record_type_3);
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543
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131
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544 type upad64_t is new Interfaces.Unsigned_64;
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545
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111
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546 type mutex_t is record
|
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|
547 flags : record_type_3;
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131
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548 lock : upad64_t;
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549 data : upad64_t;
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|
111
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550 end record;
|
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|
551 pragma Convention (C, mutex_t);
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552
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553 type cond_t is record
|
|
131
|
554 flags : record_type_3;
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|
|
555 data : upad64_t;
|
|
111
|
556 end record;
|
|
|
557 pragma Convention (C, cond_t);
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558
|
|
|
559 type thread_key_t is new unsigned;
|
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|
560
|
|
|
561 end System.OS_Interface;
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