111
|
1 ------------------------------------------------------------------------------
|
|
2 -- --
|
|
3 -- GNAT SYSTEM UTILITIES --
|
|
4 -- --
|
|
5 -- X O S C O N S --
|
|
6 -- --
|
|
7 -- B o d y --
|
|
8 -- --
|
145
|
9 -- Copyright (C) 2008-2019, Free Software Foundation, Inc. --
|
111
|
10 -- --
|
|
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. See the GNU General Public License --
|
|
17 -- for more details. You should have received a copy of the GNU General --
|
|
18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
|
|
19 -- http://www.gnu.org/licenses for a complete copy of the license. --
|
|
20 -- --
|
|
21 -- GNAT was originally developed by the GNAT team at New York University. --
|
|
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
|
|
23 -- --
|
|
24 ------------------------------------------------------------------------------
|
|
25
|
|
26 -- The base name of the template file is given by Argument (1). This program
|
|
27 -- generates the spec for this specified unit (let's call it UNIT_NAME).
|
|
28
|
|
29 -- It works in conjunction with a C template file which must be preprocessed
|
|
30 -- and compiled using the cross compiler. Two input files are used:
|
|
31 -- - the preprocessed C file: UNIT_NAME-tmplt.i
|
|
32 -- - the generated assembly file: UNIT_NAME-tmplt.s
|
|
33
|
|
34 -- The generated files are UNIT_NAME.ads and UNIT_NAME.h
|
|
35
|
|
36 with Ada.Characters.Handling; use Ada.Characters.Handling;
|
|
37 with Ada.Command_Line; use Ada.Command_Line;
|
|
38 with Ada.Exceptions; use Ada.Exceptions;
|
|
39 with Ada.Streams.Stream_IO; use Ada.Streams.Stream_IO;
|
|
40 with Ada.Strings.Fixed; use Ada.Strings.Fixed;
|
|
41 with Ada.Strings.Maps; use Ada.Strings.Maps;
|
|
42 with Ada.Strings.Maps.Constants; use Ada.Strings.Maps.Constants;
|
|
43 with Ada.Text_IO; use Ada.Text_IO;
|
|
44
|
|
45 pragma Warnings (Off);
|
|
46 -- System.Unsigned_Types is an internal GNAT unit
|
|
47 with System.Unsigned_Types; use System.Unsigned_Types;
|
|
48 pragma Warnings (On);
|
|
49
|
|
50 with GNAT.OS_Lib;
|
|
51 with GNAT.String_Split; use GNAT.String_Split;
|
|
52 with GNAT.Table;
|
|
53
|
|
54 with XUtil; use XUtil;
|
|
55
|
|
56 procedure XOSCons is
|
|
57
|
|
58 use Ada.Strings;
|
|
59
|
|
60 Unit_Name : constant String := Argument (1);
|
|
61 Tmpl_Name : constant String := Unit_Name & "-tmplt";
|
|
62
|
|
63 -------------------------------------------------
|
|
64 -- Information retrieved from assembly listing --
|
|
65 -------------------------------------------------
|
|
66
|
|
67 type String_Access is access all String;
|
|
68 -- Note: we can't use GNAT.Strings for this definition, since that unit
|
|
69 -- is not available in older base compilers.
|
|
70
|
|
71 -- We need to deal with integer values that can be signed or unsigned, so
|
|
72 -- we need to accommodate the maximum range of both cases.
|
|
73
|
|
74 type Int_Value_Type is record
|
|
75 Positive : Boolean;
|
|
76 Abs_Value : Long_Unsigned := 0;
|
|
77 end record;
|
|
78
|
|
79 function ">" (V1, V2 : Int_Value_Type) return Boolean;
|
|
80 function "<" (V1, V2 : Int_Value_Type) return Boolean;
|
|
81
|
|
82 type Asm_Info_Kind is
|
|
83 (CND, -- Named number (decimal)
|
|
84 CNU, -- Named number (decimal, unsigned)
|
|
85 CNS, -- Named number (freeform text)
|
|
86 C, -- Constant object
|
|
87 SUB, -- Subtype
|
|
88 TXT); -- Literal text
|
|
89 -- Recognized markers found in assembly file. These markers are produced by
|
|
90 -- the same-named macros from the C template.
|
|
91
|
|
92 subtype Asm_Int_Kind is Asm_Info_Kind range CND .. CNU;
|
|
93 -- Asm_Info_Kind values with int values in input
|
|
94
|
|
95 subtype Named_Number is Asm_Info_Kind range CND .. CNS;
|
|
96 -- Asm_Info_Kind values with named numbers in output
|
|
97
|
|
98 type Asm_Info (Kind : Asm_Info_Kind := TXT) is record
|
|
99 Line_Number : Integer;
|
|
100 -- Line number in C source file
|
|
101
|
|
102 Constant_Name : String_Access;
|
|
103 -- Name of constant to be defined
|
|
104
|
|
105 Constant_Type : String_Access;
|
|
106 -- Type of constant (case of Kind = C)
|
|
107
|
|
108 Value_Len : Natural := 0;
|
|
109 -- Length of text representation of constant's value
|
|
110
|
|
111 Text_Value : String_Access;
|
|
112 -- Value for CNS / C constant
|
|
113
|
|
114 Int_Value : Int_Value_Type;
|
|
115 -- Value for CND / CNU constant
|
|
116
|
|
117 Comment : String_Access;
|
|
118 -- Additional descriptive comment for constant, or free-form text (TXT)
|
|
119 end record;
|
|
120
|
|
121 package Asm_Infos is new GNAT.Table
|
|
122 (Table_Component_Type => Asm_Info,
|
|
123 Table_Index_Type => Integer,
|
|
124 Table_Low_Bound => 1,
|
|
125 Table_Initial => 100,
|
|
126 Table_Increment => 10);
|
|
127
|
|
128 Max_Constant_Name_Len : Natural := 0;
|
|
129 Max_Constant_Value_Len : Natural := 0;
|
|
130 Max_Constant_Type_Len : Natural := 0;
|
|
131 -- Lengths of longest name and longest value
|
|
132
|
|
133 Size_Of_Unsigned_Int : Integer := 0;
|
|
134 -- Size of unsigned int on target
|
|
135
|
|
136 type Language is (Lang_Ada, Lang_C);
|
|
137
|
|
138 function Parse_Int (S : String; K : Asm_Int_Kind) return Int_Value_Type;
|
|
139 -- Parse a decimal number, preceded by an optional '$' or '#' character,
|
|
140 -- and return its value.
|
|
141
|
|
142 procedure Output_Info
|
|
143 (Lang : Language;
|
|
144 OFile : Sfile;
|
|
145 Info_Index : Integer);
|
|
146 -- Output information from the indicated asm info line
|
|
147
|
|
148 procedure Parse_Asm_Line (Line : String);
|
|
149 -- Parse one information line from the assembly source
|
|
150
|
|
151 function Contains_Template_Name (S : String) return Boolean;
|
|
152 -- True if S contains Tmpl_Name, possibly with different casing
|
|
153
|
|
154 function Spaces (Count : Integer) return String;
|
|
155 -- If Count is positive, return a string of Count spaces, else return
|
|
156 -- an empty string.
|
|
157
|
|
158 ---------
|
|
159 -- ">" --
|
|
160 ---------
|
|
161
|
|
162 function ">" (V1, V2 : Int_Value_Type) return Boolean is
|
|
163 P1 : Boolean renames V1.Positive;
|
|
164 P2 : Boolean renames V2.Positive;
|
|
165 A1 : Long_Unsigned renames V1.Abs_Value;
|
|
166 A2 : Long_Unsigned renames V2.Abs_Value;
|
|
167 begin
|
|
168 return (P1 and then not P2)
|
131
|
169 or else (P1 and then A1 > A2)
|
111
|
170 or else (not P1 and then not P2 and then A1 < A2);
|
|
171 end ">";
|
|
172
|
|
173 ---------
|
|
174 -- "<" --
|
|
175 ---------
|
|
176
|
|
177 function "<" (V1, V2 : Int_Value_Type) return Boolean is
|
|
178 begin
|
|
179 return not (V1 > V2) and then not (V1 = V2);
|
|
180 end "<";
|
|
181
|
|
182 ----------------------------
|
|
183 -- Contains_Template_Name --
|
|
184 ----------------------------
|
|
185
|
|
186 function Contains_Template_Name (S : String) return Boolean is
|
|
187 begin
|
|
188 if Index (Source => To_Lower (S), Pattern => Tmpl_Name) > 0 then
|
|
189 return True;
|
|
190 else
|
|
191 return False;
|
|
192 end if;
|
|
193 end Contains_Template_Name;
|
|
194
|
|
195 -----------------
|
|
196 -- Output_Info --
|
|
197 -----------------
|
|
198
|
|
199 procedure Output_Info
|
|
200 (Lang : Language;
|
|
201 OFile : Sfile;
|
|
202 Info_Index : Integer)
|
|
203 is
|
|
204 Info : Asm_Info renames Asm_Infos.Table (Info_Index);
|
|
205
|
|
206 procedure Put (S : String);
|
|
207 -- Write S to OFile
|
|
208
|
|
209 ---------
|
|
210 -- Put --
|
|
211 ---------
|
|
212
|
|
213 procedure Put (S : String) is
|
|
214 begin
|
|
215 Put (OFile, S);
|
|
216 end Put;
|
|
217
|
|
218 -- Start of processing for Output_Info
|
|
219
|
|
220 begin
|
|
221 case Info.Kind is
|
|
222 when TXT =>
|
|
223
|
|
224 -- Handled in the common code for comments below
|
|
225
|
|
226 null;
|
|
227
|
|
228 when SUB =>
|
|
229 case Lang is
|
|
230 when Lang_Ada =>
|
|
231 Put (" subtype " & Info.Constant_Name.all
|
145
|
232 & " is " & Info.Text_Value.all & ";");
|
111
|
233 when Lang_C =>
|
|
234 Put ("#define " & Info.Constant_Name.all & " "
|
|
235 & Info.Text_Value.all);
|
|
236 end case;
|
|
237
|
|
238 when others =>
|
|
239
|
|
240 -- All named number cases
|
|
241
|
|
242 case Lang is
|
|
243 when Lang_Ada =>
|
|
244 Put (" " & Info.Constant_Name.all);
|
|
245 Put (Spaces (Max_Constant_Name_Len
|
|
246 - Info.Constant_Name'Length));
|
|
247
|
|
248 if Info.Kind in Named_Number then
|
|
249 Put (" : constant := ");
|
|
250 else
|
|
251 Put (" : constant " & Info.Constant_Type.all);
|
|
252 Put (Spaces (Max_Constant_Type_Len
|
|
253 - Info.Constant_Type'Length));
|
|
254 Put (" := ");
|
|
255 end if;
|
|
256
|
|
257 when Lang_C =>
|
|
258 Put ("#define " & Info.Constant_Name.all & " ");
|
|
259 Put (Spaces (Max_Constant_Name_Len
|
|
260 - Info.Constant_Name'Length));
|
|
261 end case;
|
|
262
|
|
263 if Info.Kind in Asm_Int_Kind then
|
|
264 if not Info.Int_Value.Positive then
|
|
265 Put ("-");
|
|
266 end if;
|
|
267
|
|
268 Put (Trim (Info.Int_Value.Abs_Value'Img, Side => Left));
|
|
269
|
|
270 else
|
|
271 declare
|
|
272 Is_String : constant Boolean :=
|
|
273 Info.Kind = C
|
|
274 and then Info.Constant_Type.all = "String";
|
|
275
|
|
276 begin
|
|
277 if Is_String then
|
|
278 Put ("""");
|
|
279 end if;
|
|
280
|
|
281 Put (Info.Text_Value.all);
|
|
282
|
|
283 if Is_String then
|
|
284 Put ("""");
|
|
285 end if;
|
|
286 end;
|
|
287 end if;
|
|
288
|
|
289 if Lang = Lang_Ada then
|
|
290 Put (";");
|
|
291
|
|
292 if Info.Comment'Length > 0 then
|
|
293 Put (Spaces (Max_Constant_Value_Len - Info.Value_Len));
|
|
294 Put (" -- ");
|
|
295 end if;
|
|
296 end if;
|
|
297 end case;
|
|
298
|
|
299 if Lang = Lang_Ada then
|
|
300 Put (Info.Comment.all);
|
|
301 end if;
|
|
302
|
|
303 New_Line (OFile);
|
|
304 end Output_Info;
|
|
305
|
|
306 --------------------
|
|
307 -- Parse_Asm_Line --
|
|
308 --------------------
|
|
309
|
|
310 procedure Parse_Asm_Line (Line : String) is
|
|
311 Index1, Index2 : Integer := Line'First;
|
|
312
|
|
313 function Field_Alloc return String_Access;
|
|
314 -- Allocate and return a copy of Line (Index1 .. Index2 - 1)
|
|
315
|
|
316 procedure Find_Colon (Index : in out Integer);
|
|
317 -- Increment Index until the next colon in Line
|
|
318
|
|
319 -----------------
|
|
320 -- Field_Alloc --
|
|
321 -----------------
|
|
322
|
|
323 function Field_Alloc return String_Access is
|
|
324 begin
|
|
325 return new String'(Line (Index1 .. Index2 - 1));
|
|
326 end Field_Alloc;
|
|
327
|
|
328 ----------------
|
|
329 -- Find_Colon --
|
|
330 ----------------
|
|
331
|
|
332 procedure Find_Colon (Index : in out Integer) is
|
|
333 begin
|
|
334 loop
|
|
335 Index := Index + 1;
|
|
336 exit when Index > Line'Last or else Line (Index) = ':';
|
|
337 end loop;
|
|
338 end Find_Colon;
|
|
339
|
|
340 -- Start of processing for Parse_Asm_Line
|
|
341
|
|
342 begin
|
|
343 Find_Colon (Index2);
|
|
344
|
|
345 declare
|
|
346 Info : Asm_Info (Kind => Asm_Info_Kind'Value
|
|
347 (Line (Line'First .. Index2 - 1)));
|
|
348 begin
|
|
349 Index1 := Index2 + 1;
|
|
350 Find_Colon (Index2);
|
|
351
|
|
352 Info.Line_Number :=
|
|
353 Integer (Parse_Int (Line (Index1 .. Index2 - 1), CNU).Abs_Value);
|
|
354
|
|
355 case Info.Kind is
|
|
356 when C
|
|
357 | CND
|
|
358 | CNS
|
|
359 | CNU
|
|
360 | SUB
|
|
361 =>
|
|
362 Index1 := Index2 + 1;
|
|
363 Find_Colon (Index2);
|
|
364
|
|
365 Info.Constant_Name := Field_Alloc;
|
|
366
|
|
367 if Info.Kind /= SUB
|
|
368 and then
|
|
369 Info.Constant_Name'Length > Max_Constant_Name_Len
|
|
370 then
|
|
371 Max_Constant_Name_Len := Info.Constant_Name'Length;
|
|
372 end if;
|
|
373
|
|
374 Index1 := Index2 + 1;
|
|
375 Find_Colon (Index2);
|
|
376
|
|
377 if Info.Kind = C then
|
|
378 Info.Constant_Type := Field_Alloc;
|
|
379
|
|
380 if Info.Constant_Type'Length > Max_Constant_Type_Len then
|
|
381 Max_Constant_Type_Len := Info.Constant_Type'Length;
|
|
382 end if;
|
|
383
|
|
384 Index1 := Index2 + 1;
|
|
385 Find_Colon (Index2);
|
|
386 end if;
|
|
387
|
|
388 if Info.Kind = CND or else Info.Kind = CNU then
|
|
389 Info.Int_Value :=
|
|
390 Parse_Int (Line (Index1 .. Index2 - 1), Info.Kind);
|
|
391 Info.Value_Len := Info.Int_Value.Abs_Value'Img'Length - 1;
|
|
392
|
|
393 if not Info.Int_Value.Positive then
|
|
394 Info.Value_Len := Info.Value_Len + 1;
|
|
395 end if;
|
|
396
|
|
397 else
|
|
398 Info.Text_Value := Field_Alloc;
|
|
399 Info.Value_Len := Info.Text_Value'Length;
|
|
400 end if;
|
|
401
|
|
402 if Info.Constant_Name.all = "SIZEOF_unsigned_int" then
|
|
403 Size_Of_Unsigned_Int :=
|
|
404 8 * Integer (Info.Int_Value.Abs_Value);
|
|
405 end if;
|
|
406
|
|
407 when others =>
|
|
408 null;
|
|
409 end case;
|
|
410
|
|
411 Index1 := Index2 + 1;
|
|
412 Index2 := Line'Last + 1;
|
|
413 Info.Comment := Field_Alloc;
|
|
414
|
|
415 if Info.Kind = TXT then
|
|
416 Info.Text_Value := Info.Comment;
|
|
417
|
|
418 -- Update Max_Constant_Value_Len, but only if this constant has a
|
|
419 -- comment (else the value is allowed to be longer).
|
|
420
|
|
421 elsif Info.Comment'Length > 0 then
|
|
422 if Info.Value_Len > Max_Constant_Value_Len then
|
|
423 Max_Constant_Value_Len := Info.Value_Len;
|
|
424 end if;
|
|
425 end if;
|
|
426
|
|
427 Asm_Infos.Append (Info);
|
|
428 end;
|
|
429
|
|
430 exception
|
|
431 when E : others =>
|
|
432 Put_Line
|
|
433 (Standard_Error, "can't parse " & Line);
|
|
434 Put_Line
|
|
435 (Standard_Error, "exception raised: " & Exception_Information (E));
|
|
436 end Parse_Asm_Line;
|
|
437
|
|
438 ----------------
|
|
439 -- Parse_Cond --
|
|
440 ----------------
|
|
441
|
|
442 procedure Parse_Cond
|
|
443 (If_Line : String;
|
|
444 Cond : Boolean;
|
|
445 Tmpl_File : Ada.Text_IO.File_Type;
|
|
446 Ada_Ofile, C_Ofile : Sfile;
|
|
447 Current_Line : in out Integer)
|
|
448 is
|
|
449 function Get_Value (Name : String) return Int_Value_Type;
|
|
450 -- Returns the value of the variable Name
|
|
451
|
|
452 ---------------
|
|
453 -- Get_Value --
|
|
454 ---------------
|
|
455
|
|
456 function Get_Value (Name : String) return Int_Value_Type is
|
|
457 begin
|
|
458 if Is_Subset (To_Set (Name), Decimal_Digit_Set) then
|
|
459 return Parse_Int (Name, CND);
|
|
460
|
|
461 else
|
|
462 for K in 1 .. Asm_Infos.Last loop
|
|
463 if Asm_Infos.Table (K).Constant_Name /= null then
|
|
464 if Name = Asm_Infos.Table (K).Constant_Name.all then
|
|
465 return Asm_Infos.Table (K).Int_Value;
|
|
466 end if;
|
|
467 end if;
|
|
468 end loop;
|
|
469
|
|
470 -- Not found returns 0
|
|
471
|
|
472 return (True, 0);
|
|
473 end if;
|
|
474 end Get_Value;
|
|
475
|
|
476 -- Local variables
|
|
477
|
|
478 Sline : Slice_Set;
|
|
479 Line : String (1 .. 256);
|
|
480 Last : Integer;
|
|
481 Value1 : Int_Value_Type;
|
|
482 Value2 : Int_Value_Type;
|
|
483 Res : Boolean;
|
|
484
|
|
485 -- Start of processing for Parse_Cond
|
|
486
|
|
487 begin
|
|
488 Create (Sline, If_Line, " ");
|
|
489
|
|
490 if Slice_Count (Sline) /= 4 then
|
|
491 Put_Line (Standard_Error, "can't parse " & If_Line);
|
|
492 end if;
|
|
493
|
|
494 Value1 := Get_Value (Slice (Sline, 2));
|
|
495 Value2 := Get_Value (Slice (Sline, 4));
|
|
496
|
|
497 if Slice (Sline, 3) = ">" then
|
|
498 Res := Cond and (Value1 > Value2);
|
|
499
|
|
500 elsif Slice (Sline, 3) = "<" then
|
|
501 Res := Cond and (Value1 < Value2);
|
|
502
|
|
503 elsif Slice (Sline, 3) = "=" then
|
|
504 Res := Cond and (Value1 = Value2);
|
|
505
|
|
506 elsif Slice (Sline, 3) = "/=" then
|
|
507 Res := Cond and (Value1 /= Value2);
|
|
508
|
|
509 else
|
|
510 -- No other operator can be used
|
|
511
|
|
512 Put_Line (Standard_Error, "unknown operator in " & If_Line);
|
|
513 Res := False;
|
|
514 end if;
|
|
515
|
|
516 Current_Line := Current_Line + 1;
|
|
517
|
|
518 loop
|
|
519 Get_Line (Tmpl_File, Line, Last);
|
|
520 Current_Line := Current_Line + 1;
|
|
521 exit when Line (1 .. Last) = "@END_IF";
|
|
522
|
|
523 if Last > 4 and then Line (1 .. 4) = "@IF " then
|
|
524 Parse_Cond
|
|
525 (Line (1 .. Last), Res,
|
|
526 Tmpl_File, Ada_Ofile, C_Ofile, Current_Line);
|
|
527
|
|
528 elsif Line (1 .. Last) = "@ELSE" then
|
|
529 Res := Cond and not Res;
|
|
530
|
|
531 elsif Res then
|
|
532 Put_Line (Ada_OFile, Line (1 .. Last));
|
|
533 Put_Line (C_OFile, Line (1 .. Last));
|
|
534 end if;
|
|
535 end loop;
|
|
536 end Parse_Cond;
|
|
537
|
|
538 ---------------
|
|
539 -- Parse_Int --
|
|
540 ---------------
|
|
541
|
|
542 function Parse_Int
|
|
543 (S : String;
|
|
544 K : Asm_Int_Kind) return Int_Value_Type
|
|
545 is
|
|
546 First : Integer := S'First;
|
|
547 Result : Int_Value_Type;
|
|
548
|
|
549 begin
|
|
550 -- On some platforms, immediate integer values are prefixed with
|
|
551 -- a $ or # character in assembly output.
|
|
552
|
|
553 if S (First) = '$' or else S (First) = '#' then
|
|
554 First := First + 1;
|
|
555 end if;
|
|
556
|
|
557 if S (First) = '-' then
|
|
558 Result.Positive := False;
|
|
559 First := First + 1;
|
|
560 else
|
|
561 Result.Positive := True;
|
|
562 end if;
|
|
563
|
|
564 Result.Abs_Value := Long_Unsigned'Value (S (First .. S'Last));
|
|
565
|
|
566 if not Result.Positive and then K = CNU then
|
|
567
|
|
568 -- Negative value, but unsigned expected: take 2's complement
|
|
569 -- reciprocical value.
|
|
570
|
|
571 Result.Abs_Value := ((not Result.Abs_Value) + 1)
|
|
572 and
|
|
573 (Shift_Left (1, Size_Of_Unsigned_Int) - 1);
|
|
574 Result.Positive := True;
|
|
575 end if;
|
|
576
|
|
577 return Result;
|
|
578
|
|
579 exception
|
|
580 when others =>
|
|
581 Put_Line (Standard_Error, "can't parse decimal value: " & S);
|
|
582 raise;
|
|
583 end Parse_Int;
|
|
584
|
|
585 ------------
|
|
586 -- Spaces --
|
|
587 ------------
|
|
588
|
|
589 function Spaces (Count : Integer) return String is
|
|
590 begin
|
|
591 if Count <= 0 then
|
|
592 return "";
|
|
593 else
|
|
594 return (1 .. Count => ' ');
|
|
595 end if;
|
|
596 end Spaces;
|
|
597
|
|
598 -- Local declarations
|
|
599
|
|
600 -- Input files
|
|
601
|
|
602 Tmpl_File_Name : constant String := Tmpl_Name & ".i";
|
|
603 Asm_File_Name : constant String := Tmpl_Name & ".s";
|
|
604
|
|
605 -- Output files
|
|
606
|
|
607 Ada_File_Name : constant String := Unit_Name & ".ads";
|
|
608 C_File_Name : constant String := Unit_Name & ".h";
|
|
609
|
|
610 Asm_File : Ada.Text_IO.File_Type;
|
|
611 Tmpl_File : Ada.Text_IO.File_Type;
|
|
612 Ada_OFile : Sfile;
|
|
613 C_OFile : Sfile;
|
|
614
|
|
615 Line : String (1 .. 256);
|
|
616 Last : Integer;
|
|
617 -- Line being processed
|
|
618
|
|
619 Current_Line : Integer;
|
|
620 Current_Info : Integer;
|
|
621 In_Comment : Boolean;
|
|
622 In_Template : Boolean;
|
|
623
|
|
624 -- Start of processing for XOSCons
|
|
625
|
|
626 begin
|
|
627 -- Load values from assembly file
|
|
628
|
|
629 Open (Asm_File, In_File, Asm_File_Name);
|
|
630 while not End_Of_File (Asm_File) loop
|
|
631 Get_Line (Asm_File, Line, Last);
|
|
632 if Last > 2 and then Line (1 .. 2) = "->" then
|
|
633 Parse_Asm_Line (Line (3 .. Last));
|
|
634 end if;
|
|
635 end loop;
|
|
636
|
|
637 Close (Asm_File);
|
|
638
|
|
639 -- Load C template and output definitions
|
|
640
|
|
641 Open (Tmpl_File, In_File, Tmpl_File_Name);
|
|
642 Create (Ada_OFile, Out_File, Ada_File_Name);
|
|
643 Create (C_OFile, Out_File, C_File_Name);
|
|
644
|
|
645 Current_Line := 0;
|
|
646 Current_Info := Asm_Infos.First;
|
|
647 In_Comment := False;
|
|
648
|
|
649 while not End_Of_File (Tmpl_File) loop
|
|
650 <<Get_One_Line>>
|
|
651 Get_Line (Tmpl_File, Line, Last);
|
|
652
|
|
653 if Last >= 2 and then Line (1 .. 2) = "# " then
|
|
654 declare
|
|
655 Index : Integer;
|
|
656
|
|
657 begin
|
|
658 Index := 3;
|
|
659 while Index <= Last and then Line (Index) in '0' .. '9' loop
|
|
660 Index := Index + 1;
|
|
661 end loop;
|
|
662
|
|
663 if Contains_Template_Name (Line (Index + 1 .. Last)) then
|
|
664 Current_Line := Integer'Value (Line (3 .. Index - 1));
|
|
665 In_Template := True;
|
|
666 goto Get_One_Line;
|
|
667 else
|
|
668 In_Template := False;
|
|
669 end if;
|
|
670 end;
|
|
671
|
|
672 elsif In_Template then
|
|
673 if In_Comment then
|
|
674 if Line (1 .. Last) = "*/" then
|
|
675 Put_Line (C_OFile, Line (1 .. Last));
|
|
676 In_Comment := False;
|
|
677
|
|
678 elsif Last > 4 and then Line (1 .. 4) = "@IF " then
|
|
679 Parse_Cond
|
|
680 (Line (1 .. Last), True,
|
|
681 Tmpl_File, Ada_Ofile, C_Ofile, Current_Line);
|
|
682
|
|
683 else
|
|
684 Put_Line (Ada_OFile, Line (1 .. Last));
|
|
685 Put_Line (C_OFile, Line (1 .. Last));
|
|
686 end if;
|
|
687
|
|
688 elsif Line (1 .. Last) = "/*" then
|
|
689 Put_Line (C_OFile, Line (1 .. Last));
|
|
690 In_Comment := True;
|
|
691
|
|
692 elsif Asm_Infos.Table (Current_Info).Line_Number = Current_Line then
|
|
693 if Fixed.Index (Line, "/*NOGEN*/") = 0 then
|
|
694 Output_Info (Lang_Ada, Ada_OFile, Current_Info);
|
|
695 Output_Info (Lang_C, C_OFile, Current_Info);
|
|
696 end if;
|
|
697
|
|
698 Current_Info := Current_Info + 1;
|
|
699 end if;
|
|
700
|
|
701 Current_Line := Current_Line + 1;
|
|
702 end if;
|
|
703 end loop;
|
|
704
|
|
705 Close (Tmpl_File);
|
|
706
|
|
707 exception
|
|
708 when E : others =>
|
|
709 Put_Line ("raised " & Ada.Exceptions.Exception_Information (E));
|
|
710 GNAT.OS_Lib.OS_Exit (1);
|
|
711 end XOSCons;
|