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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 . I N T E R R U P T S --
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6 -- --
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7 -- B o d y --
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8 -- --
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9 -- Copyright (C) 1991-2017, Florida State University --
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131
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10 -- Copyright (C) 1995-2018, AdaCore --
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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 version is for systems that do not support interrupts (or signals)
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34
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35 package body System.Interrupts is
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36
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37 pragma Warnings (Off); -- kill warnings on unreferenced formals
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38
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39 use System.Tasking;
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40
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41 -----------------------
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42 -- Local Subprograms --
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43 -----------------------
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44
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45 procedure Unimplemented;
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46 -- This procedure raises a Program_Error with an appropriate message
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47 -- indicating that an unimplemented feature has been used.
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48
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49 --------------------
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50 -- Attach_Handler --
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51 --------------------
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52
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53 procedure Attach_Handler
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54 (New_Handler : Parameterless_Handler;
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55 Interrupt : Interrupt_ID;
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56 Static : Boolean := False)
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57 is
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58 begin
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59 Unimplemented;
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60 end Attach_Handler;
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61
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62 -----------------------------
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63 -- Bind_Interrupt_To_Entry --
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64 -----------------------------
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65
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66 procedure Bind_Interrupt_To_Entry
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67 (T : Task_Id;
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68 E : Task_Entry_Index;
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69 Int_Ref : System.Address)
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70 is
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71 begin
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72 Unimplemented;
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73 end Bind_Interrupt_To_Entry;
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74
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75 ---------------------
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76 -- Block_Interrupt --
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77 ---------------------
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78
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79 procedure Block_Interrupt (Interrupt : Interrupt_ID) is
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80 begin
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81 Unimplemented;
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82 end Block_Interrupt;
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83
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84 ---------------------
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85 -- Current_Handler --
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86 ---------------------
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87
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88 function Current_Handler
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89 (Interrupt : Interrupt_ID) return Parameterless_Handler
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90 is
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91 begin
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92 Unimplemented;
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93 return null;
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94 end Current_Handler;
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95
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96 --------------------
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97 -- Detach_Handler --
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98 --------------------
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99
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100 procedure Detach_Handler
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101 (Interrupt : Interrupt_ID;
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102 Static : Boolean := False)
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103 is
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104 begin
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105 Unimplemented;
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106 end Detach_Handler;
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107
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108 ------------------------------
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109 -- Detach_Interrupt_Entries --
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110 ------------------------------
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111
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112 procedure Detach_Interrupt_Entries (T : Task_Id) is
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113 begin
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114 Unimplemented;
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115 end Detach_Interrupt_Entries;
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116
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117 ----------------------
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118 -- Exchange_Handler --
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119 ----------------------
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120
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121 procedure Exchange_Handler
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122 (Old_Handler : out Parameterless_Handler;
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123 New_Handler : Parameterless_Handler;
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124 Interrupt : Interrupt_ID;
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125 Static : Boolean := False)
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126 is
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127 begin
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128 Old_Handler := null;
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129 Unimplemented;
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130 end Exchange_Handler;
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131
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132 --------------
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133 -- Finalize --
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134 --------------
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135
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136 procedure Finalize (Object : in out Static_Interrupt_Protection) is
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137 begin
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138 Unimplemented;
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139 end Finalize;
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140
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141 -------------------------------------
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142 -- Has_Interrupt_Or_Attach_Handler --
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143 -------------------------------------
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144
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145 function Has_Interrupt_Or_Attach_Handler
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146 (Object : access Dynamic_Interrupt_Protection)
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147 return Boolean
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148 is
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149 pragma Warnings (Off, Object);
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150 begin
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151 Unimplemented;
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152 return True;
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153 end Has_Interrupt_Or_Attach_Handler;
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154
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155 function Has_Interrupt_Or_Attach_Handler
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156 (Object : access Static_Interrupt_Protection)
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157 return Boolean
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158 is
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159 pragma Warnings (Off, Object);
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160 begin
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161 Unimplemented;
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162 return True;
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163 end Has_Interrupt_Or_Attach_Handler;
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164
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165 ----------------------
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166 -- Ignore_Interrupt --
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167 ----------------------
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168
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169 procedure Ignore_Interrupt (Interrupt : Interrupt_ID) is
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170 begin
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171 Unimplemented;
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172 end Ignore_Interrupt;
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173
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174 ----------------------
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175 -- Install_Handlers --
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176 ----------------------
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177
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178 procedure Install_Handlers
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179 (Object : access Static_Interrupt_Protection;
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180 New_Handlers : New_Handler_Array)
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181 is
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182 begin
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183 Unimplemented;
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184 end Install_Handlers;
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185
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186 ---------------------------------
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187 -- Install_Restricted_Handlers --
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188 ---------------------------------
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189
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190 procedure Install_Restricted_Handlers
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191 (Prio : Any_Priority;
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192 Handlers : New_Handler_Array)
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193 is
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194 begin
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195 Unimplemented;
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196 end Install_Restricted_Handlers;
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197
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198 ----------------
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199 -- Is_Blocked --
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200 ----------------
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201
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202 function Is_Blocked (Interrupt : Interrupt_ID) return Boolean is
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203 begin
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204 Unimplemented;
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205 return True;
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206 end Is_Blocked;
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207
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208 -----------------------
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209 -- Is_Entry_Attached --
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210 -----------------------
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211
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212 function Is_Entry_Attached (Interrupt : Interrupt_ID) return Boolean is
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213 begin
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214 Unimplemented;
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215 return True;
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216 end Is_Entry_Attached;
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217
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218 -------------------------
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219 -- Is_Handler_Attached --
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220 -------------------------
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221
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222 function Is_Handler_Attached (Interrupt : Interrupt_ID) return Boolean is
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223 begin
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224 Unimplemented;
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225 return True;
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226 end Is_Handler_Attached;
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227
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228 ----------------
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229 -- Is_Ignored --
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230 ----------------
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231
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232 function Is_Ignored (Interrupt : Interrupt_ID) return Boolean is
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233 begin
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234 Unimplemented;
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235 return True;
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236 end Is_Ignored;
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237
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238 -----------------
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239 -- Is_Reserved --
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240 -----------------
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241
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242 function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is
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243 begin
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244 Unimplemented;
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245 return True;
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246 end Is_Reserved;
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247
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248 ---------------
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249 -- Reference --
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250 ---------------
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251
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252 function Reference (Interrupt : Interrupt_ID) return System.Address is
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253 begin
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254 Unimplemented;
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255 return Interrupt'Address;
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256 end Reference;
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257
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258 --------------------------------
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259 -- Register_Interrupt_Handler --
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260 --------------------------------
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261
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262 procedure Register_Interrupt_Handler
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263 (Handler_Addr : System.Address)
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264 is
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265 begin
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266 Unimplemented;
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267 end Register_Interrupt_Handler;
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268
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269 -----------------------
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270 -- Unblock_Interrupt --
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271 -----------------------
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272
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273 procedure Unblock_Interrupt (Interrupt : Interrupt_ID) is
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274 begin
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275 Unimplemented;
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276 end Unblock_Interrupt;
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277
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278 ------------------
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279 -- Unblocked_By --
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280 ------------------
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281
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282 function Unblocked_By (Interrupt : Interrupt_ID)
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283 return System.Tasking.Task_Id is
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284 begin
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285 Unimplemented;
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286 return null;
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287 end Unblocked_By;
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288
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289 ------------------------
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290 -- Unignore_Interrupt --
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291 ------------------------
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292
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293 procedure Unignore_Interrupt (Interrupt : Interrupt_ID) is
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294 begin
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295 Unimplemented;
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296 end Unignore_Interrupt;
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297
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298 -------------------
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299 -- Unimplemented; --
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300 -------------------
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301
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302 procedure Unimplemented is
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303 begin
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304 raise Program_Error with "interrupts/signals not implemented";
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305 end Unimplemented;
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306
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307 end System.Interrupts;
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