/usr/share/ada/adainclude/gnatvsn/opt.adb is in libgnatvsn8-dev 8-20180414-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 | ------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- O P T --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2018, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Gnatvsn; use Gnatvsn;
with System; use System;
with Tree_IO; use Tree_IO;
package body Opt is
SU : constant := Storage_Unit;
-- Shorthand for System.Storage_Unit
-------------------------
-- Back_End_Exceptions --
-------------------------
function Back_End_Exceptions return Boolean is
begin
return
Exception_Mechanism = Back_End_SJLJ
or else
Exception_Mechanism = Back_End_ZCX;
end Back_End_Exceptions;
-------------------------
-- Front_End_Exceptions --
-------------------------
function Front_End_Exceptions return Boolean is
begin
return Exception_Mechanism = Front_End_SJLJ;
end Front_End_Exceptions;
--------------------
-- SJLJ_Exceptions --
--------------------
function SJLJ_Exceptions return Boolean is
begin
return
Exception_Mechanism = Back_End_SJLJ
or else
Exception_Mechanism = Front_End_SJLJ;
end SJLJ_Exceptions;
--------------------
-- ZCX_Exceptions --
--------------------
function ZCX_Exceptions return Boolean is
begin
return Exception_Mechanism = Back_End_ZCX;
end ZCX_Exceptions;
----------------------------------
-- Register_Opt_Config_Switches --
----------------------------------
procedure Register_Opt_Config_Switches is
begin
Ada_Version_Config := Ada_Version;
Ada_Version_Pragma_Config := Ada_Version_Pragma;
Ada_Version_Explicit_Config := Ada_Version_Explicit;
Assertions_Enabled_Config := Assertions_Enabled;
Assume_No_Invalid_Values_Config := Assume_No_Invalid_Values;
Check_Float_Overflow_Config := Check_Float_Overflow;
Check_Policy_List_Config := Check_Policy_List;
Default_Pool_Config := Default_Pool;
Default_SSO_Config := Default_SSO;
Dynamic_Elaboration_Checks_Config := Dynamic_Elaboration_Checks;
Exception_Locations_Suppressed_Config := Exception_Locations_Suppressed;
Extensions_Allowed_Config := Extensions_Allowed;
External_Name_Exp_Casing_Config := External_Name_Exp_Casing;
External_Name_Imp_Casing_Config := External_Name_Imp_Casing;
Fast_Math_Config := Fast_Math;
Initialize_Scalars_Config := Initialize_Scalars;
No_Component_Reordering_Config := No_Component_Reordering;
Optimize_Alignment_Config := Optimize_Alignment;
Persistent_BSS_Mode_Config := Persistent_BSS_Mode;
Polling_Required_Config := Polling_Required;
Prefix_Exception_Messages_Config := Prefix_Exception_Messages;
SPARK_Mode_Config := SPARK_Mode;
SPARK_Mode_Pragma_Config := SPARK_Mode_Pragma;
Uneval_Old_Config := Uneval_Old;
Use_VADS_Size_Config := Use_VADS_Size;
Warnings_As_Errors_Count_Config := Warnings_As_Errors_Count;
-- Reset the indication that Optimize_Alignment was set locally, since
-- if we had a pragma in the config file, it would set this flag True,
-- but that's not a local setting.
Optimize_Alignment_Local := False;
end Register_Opt_Config_Switches;
---------------------------------
-- Restore_Opt_Config_Switches --
---------------------------------
procedure Restore_Opt_Config_Switches (Save : Config_Switches_Type) is
begin
Ada_Version := Save.Ada_Version;
Ada_Version_Pragma := Save.Ada_Version_Pragma;
Ada_Version_Explicit := Save.Ada_Version_Explicit;
Assertions_Enabled := Save.Assertions_Enabled;
Assume_No_Invalid_Values := Save.Assume_No_Invalid_Values;
Check_Float_Overflow := Save.Check_Float_Overflow;
Check_Policy_List := Save.Check_Policy_List;
Default_Pool := Save.Default_Pool;
Default_SSO := Save.Default_SSO;
Dynamic_Elaboration_Checks := Save.Dynamic_Elaboration_Checks;
Exception_Locations_Suppressed := Save.Exception_Locations_Suppressed;
Extensions_Allowed := Save.Extensions_Allowed;
External_Name_Exp_Casing := Save.External_Name_Exp_Casing;
External_Name_Imp_Casing := Save.External_Name_Imp_Casing;
Fast_Math := Save.Fast_Math;
Initialize_Scalars := Save.Initialize_Scalars;
No_Component_Reordering := Save.No_Component_Reordering;
Optimize_Alignment := Save.Optimize_Alignment;
Optimize_Alignment_Local := Save.Optimize_Alignment_Local;
Persistent_BSS_Mode := Save.Persistent_BSS_Mode;
Polling_Required := Save.Polling_Required;
Prefix_Exception_Messages := Save.Prefix_Exception_Messages;
SPARK_Mode := Save.SPARK_Mode;
SPARK_Mode_Pragma := Save.SPARK_Mode_Pragma;
Uneval_Old := Save.Uneval_Old;
Use_VADS_Size := Save.Use_VADS_Size;
Warnings_As_Errors_Count := Save.Warnings_As_Errors_Count;
-- Update consistently the value of Init_Or_Norm_Scalars. The value of
-- Normalize_Scalars is not saved/restored because after set to True its
-- value is never changed. That is, if a compilation unit has pragma
-- Normalize_Scalars then it forces that value for all with'ed units.
Init_Or_Norm_Scalars := Initialize_Scalars or Normalize_Scalars;
end Restore_Opt_Config_Switches;
------------------------------
-- Save_Opt_Config_Switches --
------------------------------
procedure Save_Opt_Config_Switches (Save : out Config_Switches_Type) is
begin
Save.Ada_Version := Ada_Version;
Save.Ada_Version_Pragma := Ada_Version_Pragma;
Save.Ada_Version_Explicit := Ada_Version_Explicit;
Save.Assertions_Enabled := Assertions_Enabled;
Save.Assume_No_Invalid_Values := Assume_No_Invalid_Values;
Save.Check_Float_Overflow := Check_Float_Overflow;
Save.Check_Policy_List := Check_Policy_List;
Save.Default_Pool := Default_Pool;
Save.Default_SSO := Default_SSO;
Save.Dynamic_Elaboration_Checks := Dynamic_Elaboration_Checks;
Save.Exception_Locations_Suppressed := Exception_Locations_Suppressed;
Save.Extensions_Allowed := Extensions_Allowed;
Save.External_Name_Exp_Casing := External_Name_Exp_Casing;
Save.External_Name_Imp_Casing := External_Name_Imp_Casing;
Save.Fast_Math := Fast_Math;
Save.Initialize_Scalars := Initialize_Scalars;
Save.No_Component_Reordering := No_Component_Reordering;
Save.Optimize_Alignment := Optimize_Alignment;
Save.Optimize_Alignment_Local := Optimize_Alignment_Local;
Save.Persistent_BSS_Mode := Persistent_BSS_Mode;
Save.Polling_Required := Polling_Required;
Save.Prefix_Exception_Messages := Prefix_Exception_Messages;
Save.SPARK_Mode := SPARK_Mode;
Save.SPARK_Mode_Pragma := SPARK_Mode_Pragma;
Save.Uneval_Old := Uneval_Old;
Save.Use_VADS_Size := Use_VADS_Size;
Save.Warnings_As_Errors_Count := Warnings_As_Errors_Count;
end Save_Opt_Config_Switches;
-----------------------------
-- Set_Opt_Config_Switches --
-----------------------------
procedure Set_Opt_Config_Switches
(Internal_Unit : Boolean;
Main_Unit : Boolean)
is
begin
-- Case of internal unit
if Internal_Unit then
-- Set standard switches. Note we do NOT set Ada_Version_Explicit
-- since the whole point of this is that it still properly indicates
-- the configuration setting even in a run time unit.
Ada_Version := Ada_Version_Runtime;
Ada_Version_Pragma := Empty;
Default_SSO := ' ';
Dynamic_Elaboration_Checks := False;
Extensions_Allowed := True;
External_Name_Exp_Casing := As_Is;
External_Name_Imp_Casing := Lowercase;
No_Component_Reordering := False;
Optimize_Alignment := 'O';
Optimize_Alignment_Local := True;
Persistent_BSS_Mode := False;
Prefix_Exception_Messages := True;
Uneval_Old := 'E';
Use_VADS_Size := False;
-- Note: we do not need to worry about Warnings_As_Errors_Count since
-- we do not expect to get any warnings from compiling such a unit.
-- For an internal unit, assertions/debug pragmas are off unless this
-- is the main unit and they were explicitly enabled, or unless the
-- main unit was compiled in GNAT mode. We also make sure we do not
-- assume that values are necessarily valid and that SPARK_Mode is
-- set to its configuration value.
if Main_Unit then
Assertions_Enabled := Assertions_Enabled_Config;
Assume_No_Invalid_Values := Assume_No_Invalid_Values_Config;
Check_Policy_List := Check_Policy_List_Config;
SPARK_Mode := SPARK_Mode_Config;
SPARK_Mode_Pragma := SPARK_Mode_Pragma_Config;
else
if GNAT_Mode_Config then
Assertions_Enabled := Assertions_Enabled_Config;
else
Assertions_Enabled := False;
end if;
Assume_No_Invalid_Values := False;
Check_Policy_List := Empty;
SPARK_Mode := None;
SPARK_Mode_Pragma := Empty;
end if;
-- Case of non-internal unit
else
Ada_Version := Ada_Version_Config;
Ada_Version_Pragma := Ada_Version_Pragma_Config;
Ada_Version_Explicit := Ada_Version_Explicit_Config;
Assertions_Enabled := Assertions_Enabled_Config;
Assume_No_Invalid_Values := Assume_No_Invalid_Values_Config;
Check_Float_Overflow := Check_Float_Overflow_Config;
Check_Policy_List := Check_Policy_List_Config;
Default_SSO := Default_SSO_Config;
Dynamic_Elaboration_Checks := Dynamic_Elaboration_Checks_Config;
Extensions_Allowed := Extensions_Allowed_Config;
External_Name_Exp_Casing := External_Name_Exp_Casing_Config;
External_Name_Imp_Casing := External_Name_Imp_Casing_Config;
Fast_Math := Fast_Math_Config;
Initialize_Scalars := Initialize_Scalars_Config;
No_Component_Reordering := No_Component_Reordering_Config;
Optimize_Alignment := Optimize_Alignment_Config;
Optimize_Alignment_Local := False;
Persistent_BSS_Mode := Persistent_BSS_Mode_Config;
Prefix_Exception_Messages := Prefix_Exception_Messages_Config;
SPARK_Mode := SPARK_Mode_Config;
SPARK_Mode_Pragma := SPARK_Mode_Pragma_Config;
Uneval_Old := Uneval_Old_Config;
Use_VADS_Size := Use_VADS_Size_Config;
Warnings_As_Errors_Count := Warnings_As_Errors_Count_Config;
-- Update consistently the value of Init_Or_Norm_Scalars. The value
-- of Normalize_Scalars is not saved/restored because once set to
-- True its value is never changed. That is, if a compilation unit
-- has pragma Normalize_Scalars then it forces that value for all
-- with'ed units.
Init_Or_Norm_Scalars := Initialize_Scalars or Normalize_Scalars;
end if;
-- Values set for all units
Default_Pool := Default_Pool_Config;
Exception_Locations_Suppressed := Exception_Locations_Suppressed_Config;
Fast_Math := Fast_Math_Config;
Polling_Required := Polling_Required_Config;
end Set_Opt_Config_Switches;
---------------
-- Tree_Read --
---------------
procedure Tree_Read is
Tree_Version_String_Len : Nat;
Ada_Version_Config_Val : Nat;
Ada_Version_Explicit_Config_Val : Nat;
Assertions_Enabled_Config_Val : Nat;
begin
Tree_Read_Int (Tree_ASIS_Version_Number);
Tree_Read_Bool (Address_Is_Private);
Tree_Read_Bool (Brief_Output);
Tree_Read_Bool (GNAT_Mode);
Tree_Read_Char (Identifier_Character_Set);
Tree_Read_Bool (Ignore_Rep_Clauses);
Tree_Read_Bool (Ignore_Style_Checks_Pragmas);
Tree_Read_Int (Maximum_File_Name_Length);
Tree_Read_Data (Suppress_Options'Address,
(Suppress_Options'Size + SU - 1) / SU);
Tree_Read_Bool (Verbose_Mode);
Tree_Read_Data (Warning_Mode'Address,
(Warning_Mode'Size + SU - 1) / SU);
Tree_Read_Int (Ada_Version_Config_Val);
Tree_Read_Int (Ada_Version_Explicit_Config_Val);
Tree_Read_Int (Assertions_Enabled_Config_Val);
Tree_Read_Bool (All_Errors_Mode);
Tree_Read_Bool (Assertions_Enabled);
Tree_Read_Bool (Check_Float_Overflow);
Tree_Read_Int (Int (Check_Policy_List));
Tree_Read_Int (Int (Default_Pool));
Tree_Read_Bool (Full_List);
Ada_Version_Config :=
Ada_Version_Type'Val (Ada_Version_Config_Val);
Ada_Version_Explicit_Config :=
Ada_Version_Type'Val (Ada_Version_Explicit_Config_Val);
Assertions_Enabled_Config :=
Boolean'Val (Assertions_Enabled_Config_Val);
-- Read version string: we have to get the length first
Tree_Read_Int (Tree_Version_String_Len);
declare
Tmp : String (1 .. Integer (Tree_Version_String_Len));
begin
Tree_Read_Data
(Tmp'Address, Tree_Version_String_Len);
System.Strings.Free (Tree_Version_String);
Free (Tree_Version_String);
Tree_Version_String := new String'(Tmp);
end;
Tree_Read_Data (Distribution_Stub_Mode'Address,
(Distribution_Stub_Mode'Size + SU - 1) / Storage_Unit);
Tree_Read_Bool (Inline_Active);
Tree_Read_Bool (Inline_Processing_Required);
Tree_Read_Bool (List_Units);
Tree_Read_Int (Multiple_Unit_Index);
Tree_Read_Bool (Configurable_Run_Time_Mode);
Tree_Read_Data (Operating_Mode'Address,
(Operating_Mode'Size + SU - 1) / Storage_Unit);
Tree_Read_Bool (Suppress_Checks);
Tree_Read_Bool (Try_Semantics);
Tree_Read_Data (Wide_Character_Encoding_Method'Address,
(Wide_Character_Encoding_Method'Size + SU - 1) / SU);
Tree_Read_Bool (Upper_Half_Encoding);
Tree_Read_Bool (Force_ALI_Tree_File);
end Tree_Read;
----------------
-- Tree_Write --
----------------
procedure Tree_Write is
Version_String : String := Gnat_Version_String;
begin
Tree_Write_Int (ASIS_Version_Number);
Tree_Write_Bool (Address_Is_Private);
Tree_Write_Bool (Brief_Output);
Tree_Write_Bool (GNAT_Mode);
Tree_Write_Char (Identifier_Character_Set);
Tree_Write_Bool (Ignore_Rep_Clauses);
Tree_Write_Bool (Ignore_Style_Checks_Pragmas);
Tree_Write_Int (Maximum_File_Name_Length);
Tree_Write_Data (Suppress_Options'Address,
(Suppress_Options'Size + SU - 1) / SU);
Tree_Write_Bool (Verbose_Mode);
Tree_Write_Data (Warning_Mode'Address,
(Warning_Mode'Size + SU - 1) / Storage_Unit);
Tree_Write_Int (Ada_Version_Type'Pos (Ada_Version_Config));
Tree_Write_Int (Ada_Version_Type'Pos (Ada_Version_Explicit_Config));
Tree_Write_Int (Boolean'Pos (Assertions_Enabled_Config));
Tree_Write_Bool (All_Errors_Mode);
Tree_Write_Bool (Assertions_Enabled);
Tree_Write_Bool (Check_Float_Overflow);
Tree_Write_Int (Int (Check_Policy_List));
Tree_Write_Int (Int (Default_Pool));
Tree_Write_Bool (Full_List);
Tree_Write_Int (Int (Version_String'Length));
Tree_Write_Data (Version_String'Address, Version_String'Length);
Tree_Write_Data (Distribution_Stub_Mode'Address,
(Distribution_Stub_Mode'Size + SU - 1) / SU);
Tree_Write_Bool (Inline_Active);
Tree_Write_Bool (Inline_Processing_Required);
Tree_Write_Bool (List_Units);
Tree_Write_Int (Multiple_Unit_Index);
Tree_Write_Bool (Configurable_Run_Time_Mode);
Tree_Write_Data (Operating_Mode'Address,
(Operating_Mode'Size + SU - 1) / SU);
Tree_Write_Bool (Suppress_Checks);
Tree_Write_Bool (Try_Semantics);
Tree_Write_Data (Wide_Character_Encoding_Method'Address,
(Wide_Character_Encoding_Method'Size + SU - 1) / SU);
Tree_Write_Bool (Upper_Half_Encoding);
Tree_Write_Bool (Force_ALI_Tree_File);
end Tree_Write;
end Opt;
|