1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 with Gnatvsn
; use Gnatvsn
;
33 with System
; use System
;
34 with Tree_IO
; use Tree_IO
;
38 SU
: constant := Storage_Unit
;
39 -- Shorthand for System.Storage_Unit
41 --------------------------
42 -- Full_Expander_Active --
43 --------------------------
45 function Full_Expander_Active
return Boolean is
47 return Expander_Active
and not Alfa_Mode
;
48 end Full_Expander_Active
;
50 ----------------------------------
51 -- Register_Opt_Config_Switches --
52 ----------------------------------
54 procedure Register_Opt_Config_Switches
is
56 Ada_Version_Config
:= Ada_Version
;
57 Ada_Version_Explicit_Config
:= Ada_Version_Explicit
;
58 Assertions_Enabled_Config
:= Assertions_Enabled
;
59 Assume_No_Invalid_Values_Config
:= Assume_No_Invalid_Values
;
60 Check_Policy_List_Config
:= Check_Policy_List
;
61 Debug_Pragmas_Disabled_Config
:= Debug_Pragmas_Disabled
;
62 Debug_Pragmas_Enabled_Config
:= Debug_Pragmas_Enabled
;
63 Default_Pool_Config
:= Default_Pool
;
64 Dynamic_Elaboration_Checks_Config
:= Dynamic_Elaboration_Checks
;
65 Exception_Locations_Suppressed_Config
:= Exception_Locations_Suppressed
;
66 Extensions_Allowed_Config
:= Extensions_Allowed
;
67 External_Name_Exp_Casing_Config
:= External_Name_Exp_Casing
;
68 External_Name_Imp_Casing_Config
:= External_Name_Imp_Casing
;
69 Fast_Math_Config
:= Fast_Math
;
70 Initialize_Scalars_Config
:= Initialize_Scalars
;
71 Optimize_Alignment_Config
:= Optimize_Alignment
;
72 Persistent_BSS_Mode_Config
:= Persistent_BSS_Mode
;
73 Polling_Required_Config
:= Polling_Required
;
74 Short_Descriptors_Config
:= Short_Descriptors
;
75 Use_VADS_Size_Config
:= Use_VADS_Size
;
77 -- Reset the indication that Optimize_Alignment was set locally, since
78 -- if we had a pragma in the config file, it would set this flag True,
79 -- but that's not a local setting.
81 Optimize_Alignment_Local
:= False;
82 end Register_Opt_Config_Switches
;
84 ---------------------------------
85 -- Restore_Opt_Config_Switches --
86 ---------------------------------
88 procedure Restore_Opt_Config_Switches
(Save
: Config_Switches_Type
) is
90 Ada_Version
:= Save
.Ada_Version
;
91 Ada_Version_Explicit
:= Save
.Ada_Version_Explicit
;
92 Assertions_Enabled
:= Save
.Assertions_Enabled
;
93 Assume_No_Invalid_Values
:= Save
.Assume_No_Invalid_Values
;
94 Check_Policy_List
:= Save
.Check_Policy_List
;
95 Debug_Pragmas_Disabled
:= Save
.Debug_Pragmas_Disabled
;
96 Debug_Pragmas_Enabled
:= Save
.Debug_Pragmas_Enabled
;
97 Default_Pool
:= Save
.Default_Pool
;
98 Dynamic_Elaboration_Checks
:= Save
.Dynamic_Elaboration_Checks
;
99 Exception_Locations_Suppressed
:= Save
.Exception_Locations_Suppressed
;
100 Extensions_Allowed
:= Save
.Extensions_Allowed
;
101 External_Name_Exp_Casing
:= Save
.External_Name_Exp_Casing
;
102 External_Name_Imp_Casing
:= Save
.External_Name_Imp_Casing
;
103 Fast_Math
:= Save
.Fast_Math
;
104 Initialize_Scalars
:= Save
.Initialize_Scalars
;
105 Optimize_Alignment
:= Save
.Optimize_Alignment
;
106 Optimize_Alignment_Local
:= Save
.Optimize_Alignment_Local
;
107 Persistent_BSS_Mode
:= Save
.Persistent_BSS_Mode
;
108 Polling_Required
:= Save
.Polling_Required
;
109 Short_Descriptors
:= Save
.Short_Descriptors
;
110 Use_VADS_Size
:= Save
.Use_VADS_Size
;
112 -- Update consistently the value of Init_Or_Norm_Scalars. The value of
113 -- Normalize_Scalars is not saved/restored because after set to True its
114 -- value is never changed. That is, if a compilation unit has pragma
115 -- Normalize_Scalars then it forces that value for all with'ed units.
117 Init_Or_Norm_Scalars
:= Initialize_Scalars
or Normalize_Scalars
;
118 end Restore_Opt_Config_Switches
;
120 ------------------------------
121 -- Save_Opt_Config_Switches --
122 ------------------------------
124 procedure Save_Opt_Config_Switches
(Save
: out Config_Switches_Type
) is
126 Save
.Ada_Version
:= Ada_Version
;
127 Save
.Ada_Version_Explicit
:= Ada_Version_Explicit
;
128 Save
.Assertions_Enabled
:= Assertions_Enabled
;
129 Save
.Assume_No_Invalid_Values
:= Assume_No_Invalid_Values
;
130 Save
.Check_Policy_List
:= Check_Policy_List
;
131 Save
.Debug_Pragmas_Disabled
:= Debug_Pragmas_Disabled
;
132 Save
.Debug_Pragmas_Enabled
:= Debug_Pragmas_Enabled
;
133 Save
.Default_Pool
:= Default_Pool
;
134 Save
.Dynamic_Elaboration_Checks
:= Dynamic_Elaboration_Checks
;
135 Save
.Exception_Locations_Suppressed
:= Exception_Locations_Suppressed
;
136 Save
.Extensions_Allowed
:= Extensions_Allowed
;
137 Save
.External_Name_Exp_Casing
:= External_Name_Exp_Casing
;
138 Save
.External_Name_Imp_Casing
:= External_Name_Imp_Casing
;
139 Save
.Fast_Math
:= Fast_Math
;
140 Save
.Initialize_Scalars
:= Initialize_Scalars
;
141 Save
.Optimize_Alignment
:= Optimize_Alignment
;
142 Save
.Optimize_Alignment_Local
:= Optimize_Alignment_Local
;
143 Save
.Persistent_BSS_Mode
:= Persistent_BSS_Mode
;
144 Save
.Polling_Required
:= Polling_Required
;
145 Save
.Short_Descriptors
:= Short_Descriptors
;
146 Save
.Use_VADS_Size
:= Use_VADS_Size
;
147 end Save_Opt_Config_Switches
;
149 -----------------------------
150 -- Set_Opt_Config_Switches --
151 -----------------------------
153 procedure Set_Opt_Config_Switches
154 (Internal_Unit
: Boolean;
158 -- Case of internal unit
160 if Internal_Unit
then
162 -- Set standard switches. Note we do NOT set Ada_Version_Explicit
163 -- since the whole point of this is that it still properly indicates
164 -- the configuration setting even in a run time unit.
166 Ada_Version
:= Ada_Version_Runtime
;
167 Dynamic_Elaboration_Checks
:= False;
168 Extensions_Allowed
:= True;
169 External_Name_Exp_Casing
:= As_Is
;
170 External_Name_Imp_Casing
:= Lowercase
;
171 Optimize_Alignment
:= 'O';
172 Persistent_BSS_Mode
:= False;
173 Use_VADS_Size
:= False;
174 Optimize_Alignment_Local
:= True;
176 -- For an internal unit, assertions/debug pragmas are off unless this
177 -- is the main unit and they were explicitly enabled. We also make
178 -- sure we do not assume that values are necessarily valid.
181 Assertions_Enabled
:= Assertions_Enabled_Config
;
182 Assume_No_Invalid_Values
:= Assume_No_Invalid_Values_Config
;
183 Debug_Pragmas_Disabled
:= Debug_Pragmas_Disabled_Config
;
184 Debug_Pragmas_Enabled
:= Debug_Pragmas_Enabled_Config
;
185 Check_Policy_List
:= Check_Policy_List_Config
;
187 Assertions_Enabled
:= False;
188 Assume_No_Invalid_Values
:= False;
189 Debug_Pragmas_Disabled
:= False;
190 Debug_Pragmas_Enabled
:= False;
191 Check_Policy_List
:= Empty
;
194 -- Case of non-internal unit
197 Ada_Version
:= Ada_Version_Config
;
198 Ada_Version_Explicit
:= Ada_Version_Explicit_Config
;
199 Assertions_Enabled
:= Assertions_Enabled_Config
;
200 Assume_No_Invalid_Values
:= Assume_No_Invalid_Values_Config
;
201 Check_Policy_List
:= Check_Policy_List_Config
;
202 Debug_Pragmas_Disabled
:= Debug_Pragmas_Disabled_Config
;
203 Debug_Pragmas_Enabled
:= Debug_Pragmas_Enabled_Config
;
204 Dynamic_Elaboration_Checks
:= Dynamic_Elaboration_Checks_Config
;
205 Extensions_Allowed
:= Extensions_Allowed_Config
;
206 External_Name_Exp_Casing
:= External_Name_Exp_Casing_Config
;
207 External_Name_Imp_Casing
:= External_Name_Imp_Casing_Config
;
208 Fast_Math
:= Fast_Math_Config
;
209 Initialize_Scalars
:= Initialize_Scalars_Config
;
210 Optimize_Alignment
:= Optimize_Alignment_Config
;
211 Optimize_Alignment_Local
:= False;
212 Persistent_BSS_Mode
:= Persistent_BSS_Mode_Config
;
213 Use_VADS_Size
:= Use_VADS_Size_Config
;
215 -- Update consistently the value of Init_Or_Norm_Scalars. The value
216 -- of Normalize_Scalars is not saved/restored because once set to
217 -- True its value is never changed. That is, if a compilation unit
218 -- has pragma Normalize_Scalars then it forces that value for all
221 Init_Or_Norm_Scalars
:= Initialize_Scalars
or Normalize_Scalars
;
224 Default_Pool
:= Default_Pool_Config
;
225 Exception_Locations_Suppressed
:= Exception_Locations_Suppressed_Config
;
226 Fast_Math
:= Fast_Math_Config
;
227 Optimize_Alignment
:= Optimize_Alignment_Config
;
228 Polling_Required
:= Polling_Required_Config
;
229 Short_Descriptors
:= Short_Descriptors_Config
;
230 end Set_Opt_Config_Switches
;
236 procedure Tree_Read
is
237 Tree_Version_String_Len
: Nat
;
238 Ada_Version_Config_Val
: Nat
;
239 Ada_Version_Explicit_Config_Val
: Nat
;
240 Assertions_Enabled_Config_Val
: Nat
;
243 Tree_Read_Int
(Tree_ASIS_Version_Number
);
244 Tree_Read_Bool
(Brief_Output
);
245 Tree_Read_Bool
(GNAT_Mode
);
246 Tree_Read_Char
(Identifier_Character_Set
);
247 Tree_Read_Int
(Maximum_File_Name_Length
);
248 Tree_Read_Data
(Suppress_Options
'Address,
249 (Suppress_Options
'Size + SU
- 1) / SU
);
250 Tree_Read_Bool
(Verbose_Mode
);
251 Tree_Read_Data
(Warning_Mode
'Address,
252 (Warning_Mode
'Size + SU
- 1) / SU
);
253 Tree_Read_Int
(Ada_Version_Config_Val
);
254 Tree_Read_Int
(Ada_Version_Explicit_Config_Val
);
255 Tree_Read_Int
(Assertions_Enabled_Config_Val
);
256 Tree_Read_Bool
(All_Errors_Mode
);
257 Tree_Read_Bool
(Assertions_Enabled
);
258 Tree_Read_Int
(Int
(Check_Policy_List
));
259 Tree_Read_Bool
(Debug_Pragmas_Disabled
);
260 Tree_Read_Bool
(Debug_Pragmas_Enabled
);
261 Tree_Read_Int
(Int
(Default_Pool
));
262 Tree_Read_Bool
(Enable_Overflow_Checks
);
263 Tree_Read_Bool
(Full_List
);
265 Ada_Version_Config
:=
266 Ada_Version_Type
'Val (Ada_Version_Config_Val
);
267 Ada_Version_Explicit_Config
:=
268 Ada_Version_Type
'Val (Ada_Version_Explicit_Config_Val
);
269 Assertions_Enabled_Config
:=
270 Boolean'Val (Assertions_Enabled_Config_Val
);
272 -- Read version string: we have to get the length first
274 Tree_Read_Int
(Tree_Version_String_Len
);
277 Tmp
: String (1 .. Integer (Tree_Version_String_Len
));
280 (Tmp
'Address, Tree_Version_String_Len
);
281 System
.Strings
.Free
(Tree_Version_String
);
282 Free
(Tree_Version_String
);
283 Tree_Version_String
:= new String'(Tmp);
286 Tree_Read_Data (Distribution_Stub_Mode'Address,
287 (Distribution_Stub_Mode'Size + SU - 1) / Storage_Unit);
288 Tree_Read_Bool (Inline_Active);
289 Tree_Read_Bool (Inline_Processing_Required);
290 Tree_Read_Bool (List_Units);
291 Tree_Read_Bool (Configurable_Run_Time_Mode);
292 Tree_Read_Data (Operating_Mode'Address,
293 (Operating_Mode'Size + SU - 1) / Storage_Unit);
294 Tree_Read_Bool (Suppress_Checks);
295 Tree_Read_Bool (Try_Semantics);
296 Tree_Read_Data (Wide_Character_Encoding_Method'Address,
297 (Wide_Character_Encoding_Method'Size + SU - 1) / SU);
298 Tree_Read_Bool (Upper_Half_Encoding);
299 Tree_Read_Bool (Force_ALI_Tree_File);
306 procedure Tree_Write is
307 Version_String : String := Gnat_Version_String;
310 Tree_Write_Int (ASIS_Version_Number);
311 Tree_Write_Bool (Brief_Output);
312 Tree_Write_Bool (GNAT_Mode);
313 Tree_Write_Char (Identifier_Character_Set);
314 Tree_Write_Int (Maximum_File_Name_Length);
315 Tree_Write_Data (Suppress_Options'Address,
316 (Suppress_Options'Size + SU - 1) / SU);
317 Tree_Write_Bool (Verbose_Mode);
318 Tree_Write_Data (Warning_Mode'Address,
319 (Warning_Mode'Size + SU - 1) / Storage_Unit);
320 Tree_Write_Int (Ada_Version_Type'Pos (Ada_Version_Config));
321 Tree_Write_Int (Ada_Version_Type'Pos (Ada_Version_Explicit_Config));
322 Tree_Write_Int (Boolean'Pos (Assertions_Enabled_Config));
323 Tree_Write_Bool (All_Errors_Mode);
324 Tree_Write_Bool (Assertions_Enabled);
325 Tree_Write_Int (Int (Check_Policy_List));
326 Tree_Write_Bool (Debug_Pragmas_Disabled);
327 Tree_Write_Bool (Debug_Pragmas_Enabled);
328 Tree_Write_Int (Int (Default_Pool));
329 Tree_Write_Bool (Enable_Overflow_Checks);
330 Tree_Write_Bool (Full_List);
331 Tree_Write_Int (Int (Version_String'Length));
332 Tree_Write_Data (Version_String'Address, Version_String'Length);
333 Tree_Write_Data (Distribution_Stub_Mode'Address,
334 (Distribution_Stub_Mode'Size + SU - 1) / SU);
335 Tree_Write_Bool (Inline_Active);
336 Tree_Write_Bool (Inline_Processing_Required);
337 Tree_Write_Bool (List_Units);
338 Tree_Write_Bool (Configurable_Run_Time_Mode);
339 Tree_Write_Data (Operating_Mode'Address,
340 (Operating_Mode'Size + SU - 1) / SU);
341 Tree_Write_Bool (Suppress_Checks);
342 Tree_Write_Bool (Try_Semantics);
343 Tree_Write_Data (Wide_Character_Encoding_Method'Address,
344 (Wide_Character_Encoding_Method'Size + SU - 1) / SU);
345 Tree_Write_Bool (Upper_Half_Encoding);
346 Tree_Write_Bool (Force_ALI_Tree_File);