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
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
|
-- Ortho entry point for translation.
-- Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with Types; use Types;
with Name_Table;
with Std_Package;
with Back_End;
with Flags;
with Translation;
with Iirs; use Iirs;
with Libraries; use Libraries;
with Sem;
with Errorout; use Errorout;
with GNAT.OS_Lib;
with Canon;
with Disp_Vhdl;
with Bug;
with Trans_Be;
with Options;
package body Ortho_Front is
-- The action to be performed by the compiler.
type Action_Type is
(
-- Normal mode: compile a design file.
Action_Compile,
-- Elaborate a design unit.
Action_Elaborate,
-- Analyze files and elaborate unit.
Action_Anaelab,
-- Generate code for std.package.
Action_Compile_Std_Package
);
Action : Action_Type := Action_Compile;
-- Name of the entity to elaborate.
Elab_Entity : String_Acc;
-- Name of the architecture to elaborate.
Elab_Architecture : String_Acc;
-- Filename for the list of files to link.
Elab_Filelist : String_Acc;
Flag_Expect_Failure : Boolean;
type Id_Link;
type Id_Link_Acc is access Id_Link;
type Id_Link is record
Id : Name_Id;
Link : Id_Link_Acc;
end record;
Anaelab_Files : Id_Link_Acc := null;
Anaelab_Files_Last : Id_Link_Acc := null;
procedure Init is
begin
-- Initialize.
Trans_Be.Register_Translation_Back_End;
Options.Initialize;
Elab_Filelist := null;
Elab_Entity := null;
Elab_Architecture := null;
Flag_Expect_Failure := False;
end Init;
function Decode_Elab_Option (Arg : String_Acc) return Natural
is
begin
Elab_Architecture := null;
-- Entity (+ architecture) to elaborate
if Arg = null then
Error_Msg_Option
("entity or configuration name required after --elab");
return 0;
end if;
if Arg (Arg.all'Last) = ')' then
-- Name is ENTITY(ARCH).
-- Split.
declare
P : Natural;
Len : Natural;
Is_Ext : Boolean;
begin
P := Arg.all'Last - 1;
Len := P - Arg.all'First + 1;
-- Must be at least 'e(a)'.
if Len < 4 then
Error_Msg_Option ("ill-formed name after --elab");
return 0;
end if;
-- Handle extended name.
if Arg (P) = '\' then
P := P - 1;
Is_Ext := True;
else
Is_Ext := False;
end if;
loop
if P = Arg.all'First then
Error_Msg_Option ("ill-formed name after --elab");
return 0;
end if;
exit when Arg (P) = '(' and Is_Ext = False;
if Arg (P) = '\' then
if Arg (P - 1) = '\' then
P := P - 2;
elsif Arg (P - 1) = '(' then
P := P - 1;
exit;
else
Error_Msg_Option ("ill-formed name after --elab");
return 0;
end if;
else
P := P - 1;
end if;
end loop;
Elab_Architecture := new String'(Arg (P + 1 .. Arg'Last - 1));
Elab_Entity := new String'(Arg (Arg'First .. P - 1));
end;
else
Elab_Entity := new String'(Arg.all);
Elab_Architecture := new String'("");
end if;
return 2;
end Decode_Elab_Option;
function Decode_Option (Opt : String_Acc; Arg: String_Acc) return Natural
is
begin
if Opt.all = "--compile-standard" then
Action := Action_Compile_Std_Package;
Flags.Bootstrap := True;
return 1;
elsif Opt.all = "--elab" then
if Action /= Action_Compile then
Error_Msg_Option ("several --elab options");
return 0;
end if;
Action := Action_Elaborate;
return Decode_Elab_Option (Arg);
elsif Opt.all = "--anaelab" then
if Action /= Action_Compile then
Error_Msg_Option ("several --anaelab options");
return 0;
end if;
Action := Action_Anaelab;
return Decode_Elab_Option (Arg);
elsif Opt'Length > 14
and then Opt (Opt'First .. Opt'First + 13) = "--ghdl-source="
then
if Action /= Action_Anaelab then
Error_Msg_Option
("--ghdl-source option allowed only after --anaelab options");
return 0;
end if;
if Arg /= null then
Error_Msg_Option ("no argument allowed after --ghdl-source");
return 0;
end if;
declare
L : Id_Link_Acc;
begin
L := new Id_Link'(Id => Name_Table.Get_Identifier
(Opt (Opt'First + 14 .. Opt'Last)),
Link => null);
if Anaelab_Files = null then
Anaelab_Files := L;
else
Anaelab_Files_Last.Link := L;
end if;
Anaelab_Files_Last := L;
end;
return 1;
elsif Opt.all = "-l" then
if Arg = null then
Error_Msg_Option ("filename required after -l");
end if;
if Elab_Filelist /= null then
Error_Msg_Option ("several -l options");
else
Elab_Filelist := new String'(Arg.all);
end if;
return 2;
elsif Opt.all = "--help" then
Options.Disp_Options_Help;
return 1;
elsif Opt.all = "--expect-failure" then
Flag_Expect_Failure := True;
return 1;
elsif Opt'Length > 7 and then Opt (1 .. 7) = "--ghdl-" then
if Options.Parse_Option (Opt (7 .. Opt'Last)) then
return 1;
else
return 0;
end if;
elsif Options.Parse_Option (Opt.all) then
return 1;
else
return 0;
end if;
end Decode_Option;
-- Lighter version of libraries.is_obselete, since DESIGN_UNIT must be in
-- the currently analyzed design file.
function Is_Obsolete (Design_Unit : Iir_Design_Unit)
return Boolean
is
List : Iir_List;
El : Iir;
begin
if Get_Date (Design_Unit) = Date_Obsolete then
return True;
end if;
List := Get_Dependence_List (Design_Unit);
if Is_Null_List (List) then
return False;
end if;
for I in Natural loop
El := Get_Nth_Element (List, I);
exit when Is_Null (El);
-- FIXME: there may be entity_aspect_entity...
if Get_Kind (El) = Iir_Kind_Design_Unit
and then Get_Date (El) = Date_Obsolete
then
return True;
end if;
end loop;
return False;
end Is_Obsolete;
Nbr_Parse : Natural := 0;
function Parse (Filename : String_Acc) return Boolean
is
Res : Iir_Design_File;
New_Design_File : Iir_Design_File;
Design : Iir_Design_Unit;
Next_Design : Iir_Design_Unit;
-- The vhdl filename to compile.
Vhdl_File : Name_Id;
begin
if Nbr_Parse = 0 then
-- Initialize only once...
Libraries.Load_Std_Library;
-- Here, time_base can be set.
Translation.Initialize;
Canon.Canon_Flag_Add_Labels := True;
if Flags.List_All and then Flags.List_Annotate then
Disp_Vhdl.Disp_Vhdl (Std_Package.Std_Standard_Unit);
end if;
if Action = Action_Anaelab and then Anaelab_Files /= null
then
Libraries.Load_Work_Library (True);
else
Libraries.Load_Work_Library (False);
end if;
end if;
Nbr_Parse := Nbr_Parse + 1;
case Action is
when Action_Elaborate =>
Flags.Flag_Elaborate := True;
Flags.Flag_Only_Elab_Warnings := True;
if Elab_Filelist = null then
Error_Msg_Option ("missing -l for --elab");
raise Option_Error;
end if;
Translation.Elaborate
(Elab_Entity.all, Elab_Architecture.all,
Elab_Filelist.all, False);
if Errorout.Nbr_Errors > 0 then
-- This may happen (bad entity for example).
raise Compilation_Error;
end if;
when Action_Anaelab =>
-- Parse files.
if Anaelab_Files = null then
Flags.Flag_Elaborate_With_Outdated := False;
else
Flags.Flag_Elaborate_With_Outdated := True;
declare
L : Id_Link_Acc;
begin
L := Anaelab_Files;
while L /= null loop
Res := Libraries.Load_File (L.Id);
if Errorout.Nbr_Errors > 0 then
raise Compilation_Error;
end if;
-- Put units into library.
Design := Get_First_Design_Unit (Res);
while not Is_Null (Design) loop
Next_Design := Get_Chain (Design);
Set_Chain (Design, Null_Iir);
Libraries.Add_Design_Unit_Into_Library (Design);
Design := Next_Design;
end loop;
L := L.Link;
end loop;
end;
end if;
Flags.Flag_Elaborate := True;
Flags.Flag_Only_Elab_Warnings := False;
Translation.Elaborate
(Elab_Entity.all, Elab_Architecture.all, "", True);
if Errorout.Nbr_Errors > 0 then
-- This may happen (bad entity for example).
raise Compilation_Error;
end if;
when Action_Compile_Std_Package =>
if Filename /= null
and then Filename.all /= "std_standard.vhdl"
then
Error_Msg_Option
("--compile-standard is not compatible with a filename");
return False;
end if;
Translation.Translate_Standard (True);
when Action_Compile =>
if Filename = null then
Error_Msg_Option ("no input file");
return False;
end if;
if Nbr_Parse > 1 then
Error_Msg_Option ("can compile only one file (file """ &
Filename.all & """ ignored)");
return False;
end if;
Vhdl_File := Name_Table.Get_Identifier (Filename.all);
Translation.Translate_Standard (False);
Flags.Flag_Elaborate := False;
Res := Libraries.Load_File (Vhdl_File);
if Errorout.Nbr_Errors > 0 then
raise Compilation_Error;
end if;
-- Analyze all design units.
-- FIXME: outdate the design file?
New_Design_File := Null_Iir;
Design := Get_First_Design_Unit (Res);
while not Is_Null (Design) loop
-- Sem, canon, annotate a design unit.
Back_End.Finish_Compilation (Design, True);
Next_Design := Get_Chain (Design);
if Errorout.Nbr_Errors = 0 then
Set_Chain (Design, Null_Iir);
Libraries.Add_Design_Unit_Into_Library (Design);
New_Design_File := Get_Design_File (Design);
end if;
Design := Next_Design;
end loop;
if Errorout.Nbr_Errors > 0 then
raise Compilation_Error;
end if;
-- Do late analysis checks.
Design := Get_First_Design_Unit (New_Design_File);
while not Is_Null (Design) loop
Sem.Sem_Analysis_Checks_List
(Design, Flags.Warn_Delayed_Checks);
Design := Get_Chain (Design);
end loop;
-- Compile only now.
if not Is_Null (New_Design_File) then
-- Note: the order of design unit is kept.
Design := Get_First_Design_Unit (New_Design_File);
while not Is_Null (Design) loop
if not Is_Obsolete (Design) then
if Get_Kind (Get_Library_Unit (Design))
= Iir_Kind_Configuration_Declaration
then
-- Defer code generation of configuration declaration.
-- (default binding may change between analysis and
-- elaboration).
Translation.Translate (Design, False);
else
Translation.Translate (Design, True);
end if;
if Errorout.Nbr_Errors > 0 then
-- This can happen (foreign attribute).
raise Compilation_Error;
end if;
end if;
Design := Get_Chain (Design);
end loop;
end if;
-- Save the working library.
Libraries.Save_Work_Library;
end case;
if Flag_Expect_Failure then
return False;
else
return True;
end if;
exception
--when File_Error =>
-- Error_Msg_Option ("cannot open file '" & Filename.all & "'");
-- return False;
when Compilation_Error
| Parse_Error =>
if Flag_Expect_Failure then
-- Very brutal...
GNAT.OS_Lib.OS_Exit (0);
end if;
return False;
when Option_Error =>
return False;
when E: others =>
Bug.Disp_Bug_Box (E);
raise;
end Parse;
end Ortho_Front;
|