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
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
|
/* Specific flags and argument handling of the front-end of the
GNU compiler for the Java(TM) language.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC 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.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
The Free Software Foundation is independent of Sun Microsystems, Inc. */
#include "config.h"
#include "system.h"
#include "gcc.h"
/* Name of spec file. */
#define SPEC_FILE "libgcj.spec"
/* This bit is set if we saw a `-xfoo' language specification. */
#define LANGSPEC (1<<1)
/* True if this arg is a parameter to the previous option-taking arg. */
#define PARAM_ARG (1<<2)
/* True if this arg is a .java input file name. */
#define JAVA_FILE_ARG (1<<3)
/* True if this arg is a .class input file name. */
#define CLASS_FILE_ARG (1<<4)
/* True if this arg is a .zip or .jar input file name. */
#define ZIP_FILE_ARG (1<<5)
/* True if this arg is @FILE - where FILE contains a list of filenames. */
#define INDIRECT_FILE_ARG (1<<6)
static char *find_spec_file PARAMS ((const char *));
static const char *main_class_name = NULL;
int lang_specific_extra_outfiles = 0;
/* True if we should add -shared-libgcc to the command-line. */
int shared_libgcc = 1;
const char jvgenmain_spec[] =
"jvgenmain %{D*} %i %{!pipe:%umain.i} |\n\
cc1 %{!pipe:%Umain.i} %1 \
%{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
%{g*} %{O*} \
%{v:-version} %{pg:-p} %{p}\
%{<fbounds-check} %{<fno-bounds-check}\
%{<fassume-compiled} %{<fno-assume-compiled}\
%{<femit-class-file} %{<femit-class-files} %{<fencoding*}\
%{<fuse-boehm-gc} %{<fhash-synchronization} %{<fjni}\
%{<fclasspath*} %{<fCLASSPATH*} %{<foutput-class-dir}\
%{<fuse-divide-subroutine} %{<fno-use-divide-subroutine}\
%{<fcheck-references} %{<fno-check-references}\
%{f*} -fdollars-in-identifiers\
%{aux-info*}\
%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
%{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%Umain.s}} |\n\
%{!S:as %a %Y -o %d%w%umain%O %{!pipe:%Umain.s} %A\n }";
/* Return full path name of spec file if it is in DIR, or NULL if
not. */
static char *
find_spec_file (dir)
const char *dir;
{
char *spec;
int x;
struct stat sb;
spec = (char *) xmalloc (strlen (dir) + sizeof (SPEC_FILE)
+ sizeof ("-specs=") + 4);
strcpy (spec, "-specs=");
x = strlen (spec);
strcat (spec, dir);
strcat (spec, "/");
strcat (spec, SPEC_FILE);
if (! stat (spec + x, &sb))
return spec;
free (spec);
return NULL;
}
void
lang_specific_driver (in_argc, in_argv, in_added_libraries)
int *in_argc;
const char *const **in_argv;
int *in_added_libraries;
{
int i, j;
/* If non-zero, the user gave us the `-v' flag. */
int saw_verbose_flag = 0;
int saw_save_temps = 0;
/* This will be 0 if we encounter a situation where we should not
link in libgcj. */
int library = 1;
/* This will be 1 if multiple input files (.class and/or .java)
should be passed to a single jc1 invocation. */
int combine_inputs = 0;
/* Index of last .java or .class argument. */
int last_input_index;
/* Number of .java and .class source file arguments seen. */
int java_files_count = 0;
int class_files_count = 0;
/* Number of .zip or .jar file arguments seen. */
int zip_files_count = 0;
/* Number of '@FILES' arguments seen. */
int indirect_files_count = 0;
/* Name of file containing list of files to compile. */
char *filelist_filename;
FILE *filelist_file;
/* The number of arguments being added to what's in argv, other than
libraries. */
int added = 2;
/* Used to track options that take arguments, so we don't go wrapping
those with -xc++/-xnone. */
const char *quote = NULL;
/* The new argument list will be contained in this. */
const char **arglist;
/* Non-zero if we saw a `-xfoo' language specification on the
command line. Used to avoid adding our own -xc++ if the user
already gave a language for the file. */
int saw_speclang = 0;
#if 0
/* "-lm" or "-lmath" if it appears on the command line. */
const char *saw_math ATTRIBUTE_UNUSED = 0;
/* "-lc" if it appears on the command line. */
const char *saw_libc ATTRIBUTE_UNUSED = 0;
/* "-lgcjgc" if it appears on the command line. */
const char *saw_gc ATTRIBUTE_UNUSED = 0;
/* Saw `-l' option for the thread library. */
const char *saw_threadlib ATTRIBUTE_UNUSED = 0;
/* Saw `-lgcj' on command line. */
int saw_libgcj ATTRIBUTE_UNUSED = 0;
#endif
/* Saw -C or -o option, respectively. */
int saw_C = 0;
int saw_o = 0;
/* Saw some -O* or -g* option, respectively. */
int saw_O = 0;
int saw_g = 0;
/* Saw a `-D' option. */
int saw_D = 0;
/* An array used to flag each argument that needs a bit set for
LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */
int *args;
/* The total number of arguments with the new stuff. */
int argc;
/* The argument list. */
const char *const *argv;
/* The number of libraries added in. */
int added_libraries;
/* The total number of arguments with the new stuff. */
int num_args = 1;
/* Non-zero if linking is supposed to happen. */
int will_link = 1;
/* Non-zero if we want to find the spec file. */
int want_spec_file = 1;
/* The argument we use to specify the spec file. */
char *spec_file = NULL;
argc = *in_argc;
argv = *in_argv;
added_libraries = *in_added_libraries;
args = (int *) xcalloc (argc, sizeof (int));
for (i = 1; i < argc; i++)
{
/* If the previous option took an argument, we swallow it here. */
if (quote)
{
quote = NULL;
args[i] |= PARAM_ARG;
continue;
}
/* We don't do this anymore, since we don't get them with minus
signs on them. */
if (argv[i][0] == '\0' || argv[i][1] == '\0')
continue;
if (argv[i][0] == '-')
{
if (library != 0 && (strcmp (argv[i], "-nostdlib") == 0
|| strcmp (argv[i], "-nodefaultlibs") == 0))
{
library = 0;
}
else if (strncmp (argv[i], "-fmain=", 7) == 0)
{
main_class_name = argv[i] + 7;
added--;
}
else if (strcmp (argv[i], "-fhelp") == 0)
want_spec_file = 0;
else if (strcmp (argv[i], "-v") == 0)
{
saw_verbose_flag = 1;
if (argc == 2)
{
/* If they only gave us `-v', don't try to link
in libgcj. */
library = 0;
}
}
else if (strncmp (argv[i], "-x", 2) == 0)
saw_speclang = 1;
else if (strcmp (argv[i], "-C") == 0)
{
saw_C = 1;
want_spec_file = 0;
if (library != 0)
added -= 2;
library = 0;
will_link = 0;
}
else if (argv[i][1] == 'D')
saw_D = 1;
else if (argv[i][1] == 'g')
saw_g = 1;
else if (argv[i][1] == 'O')
saw_O = 1;
else if ((argv[i][2] == '\0'
&& (char *)strchr ("bBVDUoeTuIYmLiA", argv[i][1]) != NULL)
|| strcmp (argv[i], "-Tdata") == 0
|| strcmp (argv[i], "-MT") == 0
|| strcmp (argv[i], "-MF") == 0)
{
if (strcmp (argv[i], "-o") == 0)
saw_o = 1;
quote = argv[i];
}
else if (strcmp(argv[i], "-classpath") == 0
|| strcmp(argv[i], "-CLASSPATH") == 0)
{
quote = argv[i];
added -= 1;
}
else if (library != 0
&& ((argv[i][2] == '\0'
&& (char *) strchr ("cSEM", argv[i][1]) != NULL)
|| strcmp (argv[i], "-MM") == 0))
{
/* Don't specify libraries if we won't link, since that would
cause a warning. */
library = 0;
added -= 2;
/* Remember this so we can confirm -fmain option. */
will_link = 0;
}
else if (strcmp (argv[i], "-d") == 0)
{
/* `-d' option is for javac compatibility. */
quote = argv[i];
added -= 1;
}
else if (strcmp (argv[i], "-fsyntax-only") == 0
|| strcmp (argv[i], "--syntax-only") == 0)
{
want_spec_file = 0;
library = 0;
will_link = 0;
continue;
}
else if (strcmp (argv[i], "-save-temps") == 0)
saw_save_temps = 1;
else if (strcmp (argv[i], "-static-libgcc") == 0
|| strcmp (argv[i], "-static") == 0)
shared_libgcc = 0;
else
/* Pass other options through. */
continue;
}
else
{
int len;
if (saw_speclang)
{
saw_speclang = 0;
continue;
}
if (argv[i][0] == '@')
{
args[i] |= INDIRECT_FILE_ARG;
indirect_files_count++;
added += 2; /* for -xjava and -xnone */
}
len = strlen (argv[i]);
if (len > 5 && strcmp (argv[i] + len - 5, ".java") == 0)
{
args[i] |= JAVA_FILE_ARG;
java_files_count++;
last_input_index = i;
}
if (len > 6 && strcmp (argv[i] + len - 6, ".class") == 0)
{
args[i] |= CLASS_FILE_ARG;
class_files_count++;
last_input_index = i;
}
if (len > 4
&& (strcmp (argv[i] + len - 4, ".zip") == 0
|| strcmp (argv[i] + len - 4, ".jar") == 0))
{
args[i] |= ZIP_FILE_ARG;
zip_files_count++;
last_input_index = i;
}
}
}
if (quote)
fatal ("argument to `%s' missing\n", quote);
if (saw_D && ! main_class_name)
fatal ("can't specify `-D' without `--main'\n");
num_args = argc + added;
if (saw_C)
{
num_args += 3;
if (class_files_count + zip_files_count > 0)
{
error ("Warning: already-compiled .class files ignored with -C");
num_args -= class_files_count + zip_files_count;
class_files_count = 0;
zip_files_count = 0;
}
num_args += 2; /* For -o NONE. */
if (saw_o)
fatal ("cannot specify both -C and -o");
}
if ((saw_o && java_files_count + class_files_count + zip_files_count > 1)
|| (saw_C && java_files_count > 1)
|| (indirect_files_count > 0
&& java_files_count + class_files_count + zip_files_count > 0))
combine_inputs = 1;
if (combine_inputs)
{
filelist_filename = make_temp_file ("jx");
if (filelist_filename == NULL)
fatal ("cannot create temporary file");
record_temp_file (filelist_filename, ! saw_save_temps, 0);
filelist_file = fopen (filelist_filename, "w");
if (filelist_file == NULL)
pfatal_with_name (filelist_filename);
num_args -= java_files_count + class_files_count + zip_files_count;
num_args += 2; /* for the combined arg and "-xjava" */
}
/* If we know we don't have to do anything, bail now. */
#if 0
if (! added && ! library && main_class_name == NULL && ! saw_C)
{
free (args);
return;
}
#endif
if (main_class_name)
{
lang_specific_extra_outfiles++;
}
if (saw_g + saw_O == 0)
num_args++;
num_args++;
if (combine_inputs || indirect_files_count > 0)
num_args += 1; /* for "-ffilelist-file" */
if (combine_inputs && indirect_files_count > 0)
fatal("using both @FILE with multiple files not implemented");
/* There's no point adding -shared-libgcc if we don't have a shared
libgcc. */
#ifndef ENABLE_SHARED_LIBGCC
shared_libgcc = 0;
#endif
num_args += shared_libgcc;
arglist = (const char **) xmalloc ((num_args + 1) * sizeof (char *));
j = 0;
for (i = 0; i < argc; i++, j++)
{
arglist[j] = argv[i];
if ((args[i] & PARAM_ARG) || i == 0)
continue;
if (strcmp (argv[i], "-classpath") == 0
|| strcmp (argv[i], "-CLASSPATH") == 0)
{
char* patharg
= (char*) xmalloc (strlen (argv[i]) + strlen (argv[i+1]) + 3);
sprintf (patharg, "-f%s=%s", argv[i]+1, argv[i+1]);
arglist[j] = patharg;
i++;
continue;
}
if (strcmp (argv[i], "-d") == 0)
{
char *patharg = (char *) xmalloc (sizeof ("-foutput-class-dir=")
+ strlen (argv[i + 1]) + 1);
sprintf (patharg, "-foutput-class-dir=%s", argv[i + 1]);
arglist[j] = patharg;
++i;
continue;
}
if (spec_file == NULL && strncmp (argv[i], "-L", 2) == 0)
spec_file = find_spec_file (argv[i] + 2);
if (strncmp (argv[i], "-fmain=", 7) == 0)
{
if (! will_link)
fatal ("cannot specify `main' class when not linking");
--j;
continue;
}
if ((args[i] & INDIRECT_FILE_ARG) != 0)
{
arglist[j++] = "-xjava";
arglist[j++] = argv[i]+1; /* Drop '@'. */
arglist[j] = "-xnone";
}
if ((args[i] & (CLASS_FILE_ARG|ZIP_FILE_ARG)) && saw_C)
{
--j;
continue;
}
if (combine_inputs
&& (args[i] & (CLASS_FILE_ARG|JAVA_FILE_ARG|ZIP_FILE_ARG)) != 0)
{
fputs (argv[i], filelist_file);
fputc ('\n', filelist_file);
--j;
continue;
}
}
if (combine_inputs || indirect_files_count > 0)
arglist[j++] = "-ffilelist-file";
if (combine_inputs)
{
if (fclose (filelist_file))
pfatal_with_name (filelist_filename);
arglist[j++] = "-xjava";
arglist[j++] = filelist_filename;
}
/* If we saw no -O or -g option, default to -g1, for javac compatibility. */
if (saw_g + saw_O == 0)
arglist[j++] = "-g1";
/* Read the specs file corresponding to libgcj.
If we didn't find the spec file on the -L path, then we hope it
is somewhere in the standard install areas. */
if (want_spec_file)
arglist[j++] = spec_file == NULL ? "-specs=libgcj.spec" : spec_file;
if (saw_C)
{
arglist[j++] = "-fsyntax-only";
arglist[j++] = "-femit-class-files";
arglist[j++] = "-S";
arglist[j++] = "-o";
arglist[j++] = "NONE";
}
if (shared_libgcc)
arglist[j++] = "-shared-libgcc";
arglist[j] = NULL;
*in_argc = j;
*in_argv = arglist;
*in_added_libraries = added_libraries;
}
int
lang_specific_pre_link ()
{
if (main_class_name == NULL)
return 0;
input_filename = main_class_name;
input_filename_length = strlen (main_class_name);
return do_spec (jvgenmain_spec);
}
|