|
145
|
1 /* d-spec.c -- Specific flags and argument handling of the D front end.
|
|
|
2 Copyright (C) 2006-2020 Free Software Foundation, Inc.
|
|
|
3
|
|
|
4 GCC is free software; you can redistribute it and/or modify
|
|
|
5 it under the terms of the GNU General Public License as published by
|
|
|
6 the Free Software Foundation; either version 3, or (at your option)
|
|
|
7 any later version.
|
|
|
8
|
|
|
9 GCC is distributed in the hope that it will be useful,
|
|
|
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
12 GNU General Public License for more details.
|
|
|
13
|
|
|
14 You should have received a copy of the GNU General Public License
|
|
|
15 along with GCC; see the file COPYING3. If not see
|
|
|
16 <http://www.gnu.org/licenses/>. */
|
|
|
17
|
|
|
18 #include "config.h"
|
|
|
19 #include "system.h"
|
|
|
20 #include "coretypes.h"
|
|
|
21 #include "opt-suggestions.h"
|
|
|
22 #include "gcc.h"
|
|
|
23 #include "tm.h"
|
|
|
24 #include "opts.h"
|
|
|
25
|
|
|
26 /* This bit is set if the arguments is a D source file. */
|
|
|
27 #define DSOURCE (1<<1)
|
|
|
28 /* This bit is set if they did `-lstdc++'. */
|
|
|
29 #define WITHLIBCXX (1<<2)
|
|
|
30 /* Skip this option. */
|
|
|
31 #define SKIPOPT (1<<3)
|
|
|
32
|
|
|
33 #ifndef LIBSTDCXX
|
|
|
34 #define LIBSTDCXX "stdc++"
|
|
|
35 #endif
|
|
|
36 #ifndef LIBSTDCXX_PROFILE
|
|
|
37 #define LIBSTDCXX_PROFILE LIBSTDCXX
|
|
|
38 #endif
|
|
|
39
|
|
|
40 #ifndef LIBPHOBOS
|
|
|
41 #define LIBPHOBOS "gphobos"
|
|
|
42 #endif
|
|
|
43 #ifndef LIBPHOBOS_PROFILE
|
|
|
44 #define LIBPHOBOS_PROFILE LIBPHOBOS
|
|
|
45 #endif
|
|
|
46
|
|
|
47 #ifndef LIBDRUNTIME
|
|
|
48 #define LIBDRUNTIME "gdruntime"
|
|
|
49 #endif
|
|
|
50 #ifndef LIBDRUNTIME_PROFILE
|
|
|
51 #define LIBDRUNTIME_PROFILE LIBDRUNTIME
|
|
|
52 #endif
|
|
|
53
|
|
|
54 /* What do with libgphobos. */
|
|
|
55 enum phobos_action
|
|
|
56 {
|
|
|
57 /* libgphobos should not be linked in. */
|
|
|
58 PHOBOS_NOLINK = -1,
|
|
|
59 /* libgphobos should be linked in if it is needed. */
|
|
|
60 PHOBOS_DEFAULT = 0,
|
|
|
61 /* libgphobos is needed and should be linked in. */
|
|
|
62 PHOBOS_LINK,
|
|
|
63 /* libgphobos is needed and should be linked statically. */
|
|
|
64 PHOBOS_STATIC,
|
|
|
65 /* libgphobos is needed and should be linked dynamically. */
|
|
|
66 PHOBOS_DYNAMIC,
|
|
|
67 };
|
|
|
68
|
|
|
69 static phobos_action phobos_library = PHOBOS_DEFAULT;
|
|
|
70
|
|
|
71 /* If true, use the standard D runtime library when linking with
|
|
|
72 standard libraries. */
|
|
|
73 static bool need_phobos = true;
|
|
|
74
|
|
|
75 /* If true, do load libgphobos.spec even if not needed otherwise. */
|
|
|
76 static bool need_spec = false;
|
|
|
77
|
|
|
78 void
|
|
|
79 lang_specific_driver (cl_decoded_option **in_decoded_options,
|
|
|
80 unsigned int *in_decoded_options_count,
|
|
|
81 int *in_added_libraries)
|
|
|
82 {
|
|
|
83 unsigned int i, j;
|
|
|
84
|
|
|
85 /* If nonzero, the user gave us the `-p' or `-pg' flag. */
|
|
|
86 int saw_profile_flag = 0;
|
|
|
87
|
|
|
88 /* If true, the user gave `-g'. Used by -debuglib. */
|
|
|
89 bool saw_debug_flag = false;
|
|
|
90
|
|
|
91 /* The new argument list will be contained in this. */
|
|
|
92 cl_decoded_option *new_decoded_options;
|
|
|
93
|
|
|
94 /* "-lstdc++" if it appears on the command line. */
|
|
|
95 const cl_decoded_option *saw_libcxx = 0;
|
|
|
96
|
|
|
97 /* Whether we need the C++ STD library. */
|
|
|
98 bool need_stdcxx = false;
|
|
|
99
|
|
|
100 /* True if we saw -static. */
|
|
|
101 bool static_link = false;
|
|
|
102
|
|
|
103 /* True if we should add -shared-libgcc to the command-line. */
|
|
|
104 bool shared_libgcc = true;
|
|
|
105
|
|
|
106 /* What default library to use instead of phobos. */
|
|
|
107 const char *defaultlib = NULL;
|
|
|
108
|
|
|
109 /* What debug library to use instead of phobos. */
|
|
|
110 const char *debuglib = NULL;
|
|
|
111
|
|
|
112 /* The total number of arguments with the new stuff. */
|
|
|
113 unsigned int num_args = 1;
|
|
|
114
|
|
|
115 /* "-fonly" if it appears on the command line. */
|
|
|
116 const char *only_source_option = 0;
|
|
|
117
|
|
|
118 /* Whether the -o option was used. */
|
|
|
119 bool saw_opt_o = false;
|
|
|
120
|
|
|
121 /* Whether the -c option was used. Also used for -E, -fsyntax-only,
|
|
|
122 in general anything which implies only compilation and not linking. */
|
|
|
123 bool saw_opt_c = false;
|
|
|
124
|
|
|
125 /* Whether the -S option was used. */
|
|
|
126 bool saw_opt_S = false;
|
|
|
127
|
|
|
128 /* The first input file with an extension of .d. */
|
|
|
129 const char *first_d_file = NULL;
|
|
|
130
|
|
|
131 /* The total number of arguments with the new stuff. */
|
|
|
132 unsigned int argc = *in_decoded_options_count;
|
|
|
133
|
|
|
134 /* The argument list. */
|
|
|
135 cl_decoded_option *decoded_options = *in_decoded_options;
|
|
|
136
|
|
|
137 /* The number of libraries added in. */
|
|
|
138 int added_libraries = *in_added_libraries;
|
|
|
139
|
|
|
140 /* An array used to flag each argument that needs a bit set for
|
|
|
141 DSOURCE, MATHLIB, WITHTHREAD, WITHLIBC or WITHLIBCXX. */
|
|
|
142 int *args = XCNEWVEC (int, argc);
|
|
|
143
|
|
|
144 for (i = 1; i < argc; i++)
|
|
|
145 {
|
|
|
146 const char *arg = decoded_options[i].arg;
|
|
|
147 const int value = decoded_options[i].value;
|
|
|
148
|
|
|
149 switch (decoded_options[i].opt_index)
|
|
|
150 {
|
|
|
151 case OPT_dstartfiles:
|
|
|
152 need_spec = true;
|
|
|
153 break;
|
|
|
154
|
|
|
155 case OPT_nostdlib:
|
|
|
156 case OPT_nodefaultlibs:
|
|
|
157 phobos_library = PHOBOS_NOLINK;
|
|
|
158 break;
|
|
|
159
|
|
|
160 case OPT_nophoboslib:
|
|
|
161 need_phobos = false;
|
|
|
162 args[i] |= SKIPOPT;
|
|
|
163 break;
|
|
|
164
|
|
|
165 case OPT_fdruntime:
|
|
|
166 if (!value)
|
|
|
167 need_phobos = false;
|
|
|
168 break;
|
|
|
169
|
|
|
170 case OPT_defaultlib_:
|
|
|
171 if (defaultlib != NULL)
|
|
|
172 free (CONST_CAST (char *, defaultlib));
|
|
|
173 if (arg != NULL)
|
|
|
174 {
|
|
|
175 need_phobos = false;
|
|
|
176 args[i] |= SKIPOPT;
|
|
|
177 defaultlib = XNEWVEC (char, strlen (arg));
|
|
|
178 strcpy (CONST_CAST (char *, defaultlib), arg);
|
|
|
179 }
|
|
|
180 break;
|
|
|
181
|
|
|
182 case OPT_debuglib_:
|
|
|
183 if (debuglib != NULL)
|
|
|
184 free (CONST_CAST (char *, debuglib));
|
|
|
185 if (arg != NULL)
|
|
|
186 {
|
|
|
187 need_phobos = false;
|
|
|
188 args[i] |= SKIPOPT;
|
|
|
189 debuglib = XNEWVEC (char, strlen (arg));
|
|
|
190 strcpy (CONST_CAST (char *, debuglib), arg);
|
|
|
191 }
|
|
|
192 break;
|
|
|
193
|
|
|
194 case OPT_l:
|
|
|
195 if ((strcmp (arg, LIBSTDCXX) == 0)
|
|
|
196 || (strcmp (arg, LIBSTDCXX_PROFILE) == 0))
|
|
|
197 {
|
|
|
198 args[i] |= WITHLIBCXX;
|
|
|
199 need_stdcxx = false;
|
|
|
200 }
|
|
|
201 /* Unrecognized libraries (e.g. -ltango) may require libphobos. */
|
|
|
202 else if (phobos_library == PHOBOS_DEFAULT)
|
|
|
203 phobos_library = PHOBOS_LINK;
|
|
|
204 break;
|
|
|
205
|
|
|
206 case OPT_pg:
|
|
|
207 case OPT_p:
|
|
|
208 saw_profile_flag++;
|
|
|
209 break;
|
|
|
210
|
|
|
211 case OPT_g:
|
|
|
212 saw_debug_flag = true;
|
|
|
213 break;
|
|
|
214
|
|
|
215 case OPT_v:
|
|
|
216 /* If they only gave us `-v', don't try to link in libphobos. */
|
|
|
217 if (argc == 2)
|
|
|
218 phobos_library = PHOBOS_NOLINK;
|
|
|
219 break;
|
|
|
220
|
|
|
221 case OPT_x:
|
|
|
222 if (phobos_library == PHOBOS_DEFAULT && (strcmp (arg, "d") == 0))
|
|
|
223 phobos_library = PHOBOS_LINK;
|
|
|
224 break;
|
|
|
225
|
|
|
226 case OPT_Xlinker:
|
|
|
227 case OPT_Wl_:
|
|
|
228 /* Arguments that go directly to the linker might be .o files
|
|
|
229 or something, and so might cause libphobos to be needed. */
|
|
|
230 if (phobos_library == PHOBOS_DEFAULT)
|
|
|
231 phobos_library = PHOBOS_LINK;
|
|
|
232 break;
|
|
|
233
|
|
|
234 case OPT_c:
|
|
|
235 case OPT_E:
|
|
|
236 case OPT_M:
|
|
|
237 case OPT_MM:
|
|
|
238 case OPT_fsyntax_only:
|
|
|
239 /* Don't specify libaries if we won't link, since that would
|
|
|
240 cause a warning. */
|
|
|
241 saw_opt_c = true;
|
|
|
242 phobos_library = PHOBOS_NOLINK;
|
|
|
243 break;
|
|
|
244
|
|
|
245 case OPT_S:
|
|
|
246 saw_opt_S = true;
|
|
|
247 phobos_library = PHOBOS_NOLINK;
|
|
|
248 break;
|
|
|
249
|
|
|
250 case OPT_o:
|
|
|
251 saw_opt_o = true;
|
|
|
252 break;
|
|
|
253
|
|
|
254 case OPT_static:
|
|
|
255 static_link = true;
|
|
|
256 break;
|
|
|
257
|
|
|
258 case OPT_static_libgcc:
|
|
|
259 shared_libgcc = false;
|
|
|
260 break;
|
|
|
261
|
|
|
262 case OPT_static_libphobos:
|
|
|
263 if (phobos_library != PHOBOS_NOLINK)
|
|
|
264 phobos_library = PHOBOS_STATIC;
|
|
|
265 args[i] |= SKIPOPT;
|
|
|
266 break;
|
|
|
267
|
|
|
268 case OPT_shared_libphobos:
|
|
|
269 if (phobos_library != PHOBOS_NOLINK)
|
|
|
270 phobos_library = PHOBOS_DYNAMIC;
|
|
|
271 args[i] |= SKIPOPT;
|
|
|
272 break;
|
|
|
273
|
|
|
274 case OPT_fonly_:
|
|
|
275 args[i] |= SKIPOPT;
|
|
|
276 only_source_option = decoded_options[i].orig_option_with_args_text;
|
|
|
277
|
|
|
278 if (arg != NULL)
|
|
|
279 {
|
|
|
280 const char *suffix = strrchr (only_source_option, '.');
|
|
|
281 if (suffix == NULL || strcmp (suffix, ".d") != 0)
|
|
|
282 only_source_option = concat (only_source_option, ".d", NULL);
|
|
|
283 }
|
|
|
284 break;
|
|
|
285
|
|
|
286 case OPT_SPECIAL_input_file:
|
|
|
287 {
|
|
|
288 if (arg[0] == '\0' || arg[1] == '\0')
|
|
|
289 continue;
|
|
|
290
|
|
|
291 if (phobos_library == PHOBOS_DEFAULT)
|
|
|
292 phobos_library = PHOBOS_LINK;
|
|
|
293
|
|
|
294 /* Record that this is a D source file. */
|
|
|
295 const char *suffix = strrchr (arg, '.');
|
|
|
296 if (suffix != NULL && strcmp (suffix, ".d") == 0)
|
|
|
297 {
|
|
|
298 if (first_d_file == NULL)
|
|
|
299 first_d_file = arg;
|
|
|
300
|
|
|
301 args[i] |= DSOURCE;
|
|
|
302 }
|
|
|
303
|
|
|
304 /* If this is a C++ source file, we'll need to link
|
|
|
305 against libstdc++ library. */
|
|
|
306 if (suffix != NULL
|
|
|
307 && (strcmp (suffix, ".cc") == 0
|
|
|
308 || (strcmp (suffix, ".cpp") == 0)
|
|
|
309 || (strcmp (suffix, ".c++") == 0)))
|
|
|
310 need_stdcxx = true;
|
|
|
311
|
|
|
312 break;
|
|
|
313 }
|
|
|
314 }
|
|
|
315 }
|
|
|
316
|
|
|
317 /* There's no point adding -shared-libgcc if we don't have a shared
|
|
|
318 libgcc. */
|
|
|
319 #ifndef ENABLE_SHARED_LIBGCC
|
|
|
320 shared_libgcc = false;
|
|
|
321 #endif
|
|
|
322
|
|
|
323 /* Make sure to have room for the trailing NULL argument.
|
|
|
324 - needstdcxx might add `-lstdcxx'
|
|
|
325 - libphobos adds `-Bstatic -lphobos -ldruntime -Bdynamic'
|
|
|
326 - only_source adds 1 more arg, also maybe add `-o'. */
|
|
|
327 num_args = argc + need_stdcxx + shared_libgcc + need_phobos * 4 + 2;
|
|
|
328 new_decoded_options = XNEWVEC (cl_decoded_option, num_args);
|
|
|
329
|
|
|
330 i = 0;
|
|
|
331 j = 0;
|
|
|
332
|
|
|
333 /* Copy the 0th argument, i.e., the name of the program itself. */
|
|
|
334 new_decoded_options[j++] = decoded_options[i++];
|
|
|
335
|
|
|
336 /* NOTE: We start at 1 now, not 0. */
|
|
|
337 while (i < argc)
|
|
|
338 {
|
|
|
339 if (args[i] & SKIPOPT)
|
|
|
340 {
|
|
|
341 ++i;
|
|
|
342 continue;
|
|
|
343 }
|
|
|
344
|
|
|
345 new_decoded_options[j] = decoded_options[i];
|
|
|
346
|
|
|
347 if (!saw_libcxx && (args[i] & WITHLIBCXX))
|
|
|
348 {
|
|
|
349 --j;
|
|
|
350 saw_libcxx = &decoded_options[i];
|
|
|
351 }
|
|
|
352
|
|
|
353 if (args[i] & DSOURCE)
|
|
|
354 {
|
|
|
355 if (only_source_option)
|
|
|
356 --j;
|
|
|
357 }
|
|
|
358
|
|
|
359 i++;
|
|
|
360 j++;
|
|
|
361 }
|
|
|
362
|
|
|
363 if (only_source_option)
|
|
|
364 {
|
|
|
365 const char *only_source_arg = only_source_option + 7;
|
|
|
366 generate_option (OPT_fonly_, only_source_arg, 1, CL_DRIVER,
|
|
|
367 &new_decoded_options[j]);
|
|
|
368 j++;
|
|
|
369
|
|
|
370 generate_option_input_file (only_source_arg,
|
|
|
371 &new_decoded_options[j++]);
|
|
|
372 }
|
|
|
373
|
|
|
374 /* If no reason to link against libphobos library, then don't add it. */
|
|
|
375 if (phobos_library == PHOBOS_DEFAULT)
|
|
|
376 phobos_library = PHOBOS_NOLINK;
|
|
|
377
|
|
|
378 /* If we didn't see a -o option, add one. This is because we need the
|
|
|
379 driver to pass all .d files to the D compiler. Without a -o option
|
|
|
380 the driver will invoke the compiler separately for each input file. */
|
|
|
381 if (first_d_file != NULL && !saw_opt_o)
|
|
|
382 {
|
|
|
383 if (saw_opt_c || saw_opt_S)
|
|
|
384 {
|
|
|
385 const char *base = lbasename (first_d_file);
|
|
|
386 int baselen = strlen (base) - 2;
|
|
|
387 char *out = XNEWVEC (char, baselen + 3);
|
|
|
388
|
|
|
389 memcpy (out, base, baselen);
|
|
|
390 /* The driver will convert .o to some other suffix if appropriate. */
|
|
|
391 out[baselen] = '.';
|
|
|
392 if (saw_opt_S)
|
|
|
393 out[baselen + 1] = 's';
|
|
|
394 else
|
|
|
395 out[baselen + 1] = 'o';
|
|
|
396 out[baselen + 2] = '\0';
|
|
|
397 generate_option (OPT_o, out, 1, CL_DRIVER,
|
|
|
398 &new_decoded_options[j]);
|
|
|
399 }
|
|
|
400 else
|
|
|
401 {
|
|
|
402 /* Wouldn't be necessary if the driver converted .out also. */
|
|
|
403 const char *out = NULL;
|
|
|
404
|
|
|
405 #ifdef TARGET_EXECUTABLE_SUFFIX
|
|
|
406 if (TARGET_EXECUTABLE_SUFFIX[0] != 0)
|
|
|
407 out = "a" TARGET_EXECUTABLE_SUFFIX;
|
|
|
408 #endif
|
|
|
409 if (out == NULL)
|
|
|
410 out = "a.out";
|
|
|
411
|
|
|
412 generate_option (OPT_o, out, 1, CL_DRIVER,
|
|
|
413 &new_decoded_options[j]);
|
|
|
414 }
|
|
|
415 j++;
|
|
|
416 }
|
|
|
417
|
|
|
418 /* Add `-lgphobos' if we haven't already done so. */
|
|
|
419 if (phobos_library != PHOBOS_NOLINK && need_phobos)
|
|
|
420 {
|
|
|
421 /* Default to static linking. */
|
|
|
422 if (phobos_library != PHOBOS_DYNAMIC)
|
|
|
423 phobos_library = PHOBOS_STATIC;
|
|
|
424
|
|
|
425 #ifdef HAVE_LD_STATIC_DYNAMIC
|
|
|
426 if (phobos_library == PHOBOS_DYNAMIC && static_link)
|
|
|
427 {
|
|
|
428 generate_option (OPT_Wl_, LD_DYNAMIC_OPTION, 1, CL_DRIVER,
|
|
|
429 &new_decoded_options[j]);
|
|
|
430 j++;
|
|
|
431 }
|
|
|
432 else if (phobos_library == PHOBOS_STATIC && !static_link)
|
|
|
433 {
|
|
|
434 generate_option (OPT_Wl_, LD_STATIC_OPTION, 1, CL_DRIVER,
|
|
|
435 &new_decoded_options[j]);
|
|
|
436 j++;
|
|
|
437 }
|
|
|
438 #endif
|
|
|
439
|
|
|
440 generate_option (OPT_l,
|
|
|
441 saw_profile_flag ? LIBPHOBOS_PROFILE : LIBPHOBOS, 1,
|
|
|
442 CL_DRIVER, &new_decoded_options[j]);
|
|
|
443 added_libraries++;
|
|
|
444 j++;
|
|
|
445 generate_option (OPT_l,
|
|
|
446 saw_profile_flag ? LIBDRUNTIME_PROFILE : LIBDRUNTIME, 1,
|
|
|
447 CL_DRIVER, &new_decoded_options[j]);
|
|
|
448 added_libraries++;
|
|
|
449 j++;
|
|
|
450
|
|
|
451 #ifdef HAVE_LD_STATIC_DYNAMIC
|
|
|
452 if (phobos_library == PHOBOS_DYNAMIC && static_link)
|
|
|
453 {
|
|
|
454 generate_option (OPT_Wl_, LD_STATIC_OPTION, 1, CL_DRIVER,
|
|
|
455 &new_decoded_options[j]);
|
|
|
456 j++;
|
|
|
457 }
|
|
|
458 else if (phobos_library == PHOBOS_STATIC && !static_link)
|
|
|
459 {
|
|
|
460 generate_option (OPT_Wl_, LD_DYNAMIC_OPTION, 1, CL_DRIVER,
|
|
|
461 &new_decoded_options[j]);
|
|
|
462 j++;
|
|
|
463 }
|
|
|
464 #endif
|
|
|
465 }
|
|
|
466 else if (saw_debug_flag && debuglib)
|
|
|
467 {
|
|
|
468 generate_option (OPT_l, debuglib, 1, CL_DRIVER,
|
|
|
469 &new_decoded_options[j++]);
|
|
|
470 added_libraries++;
|
|
|
471 }
|
|
|
472 else if (defaultlib)
|
|
|
473 {
|
|
|
474 generate_option (OPT_l, defaultlib, 1, CL_DRIVER,
|
|
|
475 &new_decoded_options[j++]);
|
|
|
476 added_libraries++;
|
|
|
477 }
|
|
|
478
|
|
|
479 if (saw_libcxx)
|
|
|
480 new_decoded_options[j++] = *saw_libcxx;
|
|
|
481 else if (need_stdcxx)
|
|
|
482 {
|
|
|
483 generate_option (OPT_l,
|
|
|
484 (saw_profile_flag
|
|
|
485 ? LIBSTDCXX_PROFILE
|
|
|
486 : LIBSTDCXX),
|
|
|
487 1, CL_DRIVER, &new_decoded_options[j++]);
|
|
|
488 added_libraries++;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (shared_libgcc && !static_link)
|
|
|
492 {
|
|
|
493 generate_option (OPT_shared_libgcc, NULL, 1, CL_DRIVER,
|
|
|
494 &new_decoded_options[j++]);
|
|
|
495 }
|
|
|
496
|
|
|
497 *in_decoded_options_count = j;
|
|
|
498 *in_decoded_options = new_decoded_options;
|
|
|
499 *in_added_libraries = added_libraries;
|
|
|
500 }
|
|
|
501
|
|
|
502 /* Called before linking. Returns 0 on success and -1 on failure. */
|
|
|
503
|
|
|
504 int
|
|
|
505 lang_specific_pre_link (void)
|
|
|
506 {
|
|
|
507 if ((phobos_library != PHOBOS_NOLINK && need_phobos) || need_spec)
|
|
|
508 do_spec ("%:include(libgphobos.spec)");
|
|
|
509
|
|
|
510 return 0;
|
|
|
511 }
|
|
|
512
|
|
|
513 /* Number of extra output files that lang_specific_pre_link may generate. */
|
|
|
514
|
|
|
515 int lang_specific_extra_outfiles = 0; /* Not used for D. */
|
|
|
516
|
