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[tinycc.git] / libtcc.c
blob2cceb6ff6d940e8a2fd9b5981265664ad99f0ab8
1 /*
2 * TCC - Tiny C Compiler
3 *
4 * Copyright (c) 2001-2004 Fabrice Bellard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #if !defined ONE_SOURCE || ONE_SOURCE
22 #include "tccpp.c"
23 #include "tccgen.c"
24 #include "tccasm.c"
25 #include "tccelf.c"
26 #include "tccrun.c"
27 #ifdef TCC_TARGET_I386
28 #include "i386-gen.c"
29 #include "i386-link.c"
30 #include "i386-asm.c"
31 #elif defined(TCC_TARGET_ARM)
32 #include "arm-gen.c"
33 #include "arm-link.c"
34 #include "arm-asm.c"
35 #elif defined(TCC_TARGET_ARM64)
36 #include "arm64-gen.c"
37 #include "arm64-link.c"
38 #include "arm-asm.c"
39 #elif defined(TCC_TARGET_C67)
40 #include "c67-gen.c"
41 #include "c67-link.c"
42 #include "tcccoff.c"
43 #elif defined(TCC_TARGET_X86_64)
44 #include "x86_64-gen.c"
45 #include "x86_64-link.c"
46 #include "i386-asm.c"
47 #elif defined(TCC_TARGET_RISCV64)
48 #include "riscv64-gen.c"
49 #include "riscv64-link.c"
50 #include "riscv64-asm.c"
51 #else
52 #error unknown target
53 #endif
54 #ifdef TCC_TARGET_PE
55 #include "tccpe.c"
56 #endif
57 #ifdef TCC_TARGET_MACHO
58 #include "tccmacho.c"
59 #endif
60 #endif /* ONE_SOURCE */
61
62 #include "tcc.h"
63
64 /********************************************************/
65 /* global variables */
66
67 /* XXX: get rid of this ASAP (or maybe not) */
68 ST_DATA struct TCCState *tcc_state;
69 TCC_SEM(static tcc_compile_sem);
70
71 #ifdef MEM_DEBUG
72 static int nb_states;
73 #endif
74
75 /********************************************************/
76 #ifdef _WIN32
77 ST_FUNC char *normalize_slashes(char *path)
78 {
79 char *p;
80 for (p = path; *p; ++p)
81 if (*p == '\\')
82 *p = '/';
83 return path;
84 }
85
86 #if defined LIBTCC_AS_DLL && !defined CONFIG_TCCDIR
87 static HMODULE tcc_module;
88 BOOL WINAPI DllMain (HINSTANCE hDll, DWORD dwReason, LPVOID lpReserved)
89 {
90 if (DLL_PROCESS_ATTACH == dwReason)
91 tcc_module = hDll;
92 return TRUE;
93 }
94 #else
95 #define tcc_module NULL /* NULL means executable itself */
96 #endif
97
98 #ifndef CONFIG_TCCDIR
99 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
100 static inline char *config_tccdir_w32(char *path)
101 {
102 char *p;
103 GetModuleFileName(tcc_module, path, MAX_PATH);
104 p = tcc_basename(normalize_slashes(strlwr(path)));
105 if (p > path)
106 --p;
107 *p = 0;
108 return path;
109 }
110 #define CONFIG_TCCDIR config_tccdir_w32(alloca(MAX_PATH))
111 #endif
112
113 #ifdef TCC_TARGET_PE
114 static void tcc_add_systemdir(TCCState *s)
115 {
116 char buf[1000];
117 GetSystemDirectory(buf, sizeof buf);
118 tcc_add_library_path(s, normalize_slashes(buf));
119 }
120 #endif
121 #endif
122
123 /********************************************************/
124 #if CONFIG_TCC_SEMLOCK
125 #if defined _WIN32
126 ST_FUNC void wait_sem(TCCSem *p)
127 {
128 if (!p->init)
129 InitializeCriticalSection(&p->cr), p->init = 1;
130 EnterCriticalSection(&p->cr);
131 }
132 ST_FUNC void post_sem(TCCSem *p)
133 {
134 LeaveCriticalSection(&p->cr);
135 }
136 #elif defined __APPLE__
137 /* Half-compatible MacOS doesn't have non-shared (process local)
138 semaphores. Use the dispatch framework for lightweight locks. */
139 ST_FUNC void wait_sem(TCCSem *p)
140 {
141 if (!p->init)
142 p->sem = dispatch_semaphore_create(1), p->init = 1;
143 dispatch_semaphore_wait(p->sem, DISPATCH_TIME_FOREVER);
144 }
145 ST_FUNC void post_sem(TCCSem *p)
146 {
147 dispatch_semaphore_signal(p->sem);
148 }
149 #else
150 ST_FUNC void wait_sem(TCCSem *p)
151 {
152 if (!p->init)
153 sem_init(&p->sem, 0, 1), p->init = 1;
154 while (sem_wait(&p->sem) < 0 && errno == EINTR);
155 }
156 ST_FUNC void post_sem(TCCSem *p)
157 {
158 sem_post(&p->sem);
159 }
160 #endif
161 #endif
162
163 PUB_FUNC void tcc_enter_state(TCCState *s1)
164 {
165 if (s1->error_set_jmp_enabled)
166 return;
167 WAIT_SEM(&tcc_compile_sem);
168 tcc_state = s1;
169 }
170
171 PUB_FUNC void tcc_exit_state(TCCState *s1)
172 {
173 if (s1->error_set_jmp_enabled)
174 return;
175 tcc_state = NULL;
176 POST_SEM(&tcc_compile_sem);
177 }
178
179 /********************************************************/
180 /* copy a string and truncate it. */
181 ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s)
182 {
183 char *q, *q_end;
184 int c;
185
186 if (buf_size > 0) {
187 q = buf;
188 q_end = buf + buf_size - 1;
189 while (q < q_end) {
190 c = *s++;
191 if (c == '\0')
192 break;
193 *q++ = c;
194 }
195 *q = '\0';
196 }
197 return buf;
198 }
199
200 /* strcat and truncate. */
201 ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s)
202 {
203 size_t len;
204 len = strlen(buf);
205 if (len < buf_size)
206 pstrcpy(buf + len, buf_size - len, s);
207 return buf;
208 }
209
210 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num)
211 {
212 memcpy(out, in, num);
213 out[num] = '\0';
214 return out;
215 }
216
217 /* extract the basename of a file */
218 PUB_FUNC char *tcc_basename(const char *name)
219 {
220 char *p = strchr(name, 0);
221 while (p > name && !IS_DIRSEP(p[-1]))
222 --p;
223 return p;
224 }
225
226 /* extract extension part of a file
227 *
228 * (if no extension, return pointer to end-of-string)
229 */
230 PUB_FUNC char *tcc_fileextension (const char *name)
231 {
232 char *b = tcc_basename(name);
233 char *e = strrchr(b, '.');
234 return e ? e : strchr(b, 0);
235 }
236
237 ST_FUNC char *tcc_load_text(int fd)
238 {
239 int len = lseek(fd, 0, SEEK_END);
240 char *buf = load_data(fd, 0, len + 1);
241 buf[len] = 0;
242 return buf;
243 }
244
245 /********************************************************/
246 /* memory management */
247
248 #undef free
249 #undef malloc
250 #undef realloc
251
252 #ifndef MEM_DEBUG
253
254 PUB_FUNC void tcc_free(void *ptr)
255 {
256 free(ptr);
257 }
258
259 PUB_FUNC void *tcc_malloc(unsigned long size)
260 {
261 void *ptr;
262 ptr = malloc(size);
263 if (!ptr && size)
264 _tcc_error("memory full (malloc)");
265 return ptr;
266 }
267
268 PUB_FUNC void *tcc_mallocz(unsigned long size)
269 {
270 void *ptr;
271 ptr = tcc_malloc(size);
272 if (size)
273 memset(ptr, 0, size);
274 return ptr;
275 }
276
277 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size)
278 {
279 void *ptr1;
280 ptr1 = realloc(ptr, size);
281 if (!ptr1 && size)
282 _tcc_error("memory full (realloc)");
283 return ptr1;
284 }
285
286 PUB_FUNC char *tcc_strdup(const char *str)
287 {
288 char *ptr;
289 ptr = tcc_malloc(strlen(str) + 1);
290 strcpy(ptr, str);
291 return ptr;
292 }
293
294 #else
295
296 #define MEM_DEBUG_MAGIC1 0xFEEDDEB1
297 #define MEM_DEBUG_MAGIC2 0xFEEDDEB2
298 #define MEM_DEBUG_MAGIC3 0xFEEDDEB3
299 #define MEM_DEBUG_FILE_LEN 40
300 #define MEM_DEBUG_CHECK3(header) \
301 ((mem_debug_header_t*)((char*)header + header->size))->magic3
302 #define MEM_USER_PTR(header) \
303 ((char *)header + offsetof(mem_debug_header_t, magic3))
304 #define MEM_HEADER_PTR(ptr) \
305 (mem_debug_header_t *)((char*)ptr - offsetof(mem_debug_header_t, magic3))
306
307 struct mem_debug_header {
308 unsigned magic1;
309 unsigned size;
310 struct mem_debug_header *prev;
311 struct mem_debug_header *next;
312 int line_num;
313 char file_name[MEM_DEBUG_FILE_LEN + 1];
314 unsigned magic2;
315 ALIGNED(16) unsigned char magic3[4];
316 };
317
318 typedef struct mem_debug_header mem_debug_header_t;
319
320 static mem_debug_header_t *mem_debug_chain;
321 static unsigned mem_cur_size;
322 static unsigned mem_max_size;
323
324 static mem_debug_header_t *malloc_check(void *ptr, const char *msg)
325 {
326 mem_debug_header_t * header = MEM_HEADER_PTR(ptr);
327 if (header->magic1 != MEM_DEBUG_MAGIC1 ||
328 header->magic2 != MEM_DEBUG_MAGIC2 ||
329 read32le(MEM_DEBUG_CHECK3(header)) != MEM_DEBUG_MAGIC3 ||
330 header->size == (unsigned)-1) {
331 fprintf(stderr, "%s check failed\n", msg);
332 if (header->magic1 == MEM_DEBUG_MAGIC1)
333 fprintf(stderr, "%s:%u: block allocated here.\n",
334 header->file_name, header->line_num);
335 exit(1);
336 }
337 return header;
338 }
339
340 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line)
341 {
342 int ofs;
343 mem_debug_header_t *header;
344
345 header = malloc(sizeof(mem_debug_header_t) + size);
346 if (!header)
347 _tcc_error("memory full (malloc)");
348
349 header->magic1 = MEM_DEBUG_MAGIC1;
350 header->magic2 = MEM_DEBUG_MAGIC2;
351 header->size = size;
352 write32le(MEM_DEBUG_CHECK3(header), MEM_DEBUG_MAGIC3);
353 header->line_num = line;
354 ofs = strlen(file) - MEM_DEBUG_FILE_LEN;
355 strncpy(header->file_name, file + (ofs > 0 ? ofs : 0), MEM_DEBUG_FILE_LEN);
356 header->file_name[MEM_DEBUG_FILE_LEN] = 0;
357
358 header->next = mem_debug_chain;
359 header->prev = NULL;
360 if (header->next)
361 header->next->prev = header;
362 mem_debug_chain = header;
363
364 mem_cur_size += size;
365 if (mem_cur_size > mem_max_size)
366 mem_max_size = mem_cur_size;
367
368 return MEM_USER_PTR(header);
369 }
370
371 PUB_FUNC void tcc_free_debug(void *ptr)
372 {
373 mem_debug_header_t *header;
374 if (!ptr)
375 return;
376 header = malloc_check(ptr, "tcc_free");
377 mem_cur_size -= header->size;
378 header->size = (unsigned)-1;
379 if (header->next)
380 header->next->prev = header->prev;
381 if (header->prev)
382 header->prev->next = header->next;
383 if (header == mem_debug_chain)
384 mem_debug_chain = header->next;
385 free(header);
386 }
387
388 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line)
389 {
390 void *ptr;
391 ptr = tcc_malloc_debug(size,file,line);
392 memset(ptr, 0, size);
393 return ptr;
394 }
395
396 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line)
397 {
398 mem_debug_header_t *header;
399 int mem_debug_chain_update = 0;
400 if (!ptr)
401 return tcc_malloc_debug(size, file, line);
402 header = malloc_check(ptr, "tcc_realloc");
403 mem_cur_size -= header->size;
404 mem_debug_chain_update = (header == mem_debug_chain);
405 header = realloc(header, sizeof(mem_debug_header_t) + size);
406 if (!header)
407 _tcc_error("memory full (realloc)");
408 header->size = size;
409 write32le(MEM_DEBUG_CHECK3(header), MEM_DEBUG_MAGIC3);
410 if (header->next)
411 header->next->prev = header;
412 if (header->prev)
413 header->prev->next = header;
414 if (mem_debug_chain_update)
415 mem_debug_chain = header;
416 mem_cur_size += size;
417 if (mem_cur_size > mem_max_size)
418 mem_max_size = mem_cur_size;
419 return MEM_USER_PTR(header);
420 }
421
422 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line)
423 {
424 char *ptr;
425 ptr = tcc_malloc_debug(strlen(str) + 1, file, line);
426 strcpy(ptr, str);
427 return ptr;
428 }
429
430 PUB_FUNC void tcc_memcheck(void)
431 {
432 if (mem_cur_size) {
433 mem_debug_header_t *header = mem_debug_chain;
434 fprintf(stderr, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n",
435 mem_cur_size, mem_max_size);
436 while (header) {
437 fprintf(stderr, "%s:%u: error: %u bytes leaked\n",
438 header->file_name, header->line_num, header->size);
439 header = header->next;
440 }
441 #if MEM_DEBUG-0 == 2
442 exit(2);
443 #endif
444 }
445 }
446 #endif /* MEM_DEBUG */
447
448 #define free(p) use_tcc_free(p)
449 #define malloc(s) use_tcc_malloc(s)
450 #define realloc(p, s) use_tcc_realloc(p, s)
451
452 /********************************************************/
453 /* dynarrays */
454
455 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data)
456 {
457 int nb, nb_alloc;
458 void **pp;
459
460 nb = *nb_ptr;
461 pp = *(void ***)ptab;
462 /* every power of two we double array size */
463 if ((nb & (nb - 1)) == 0) {
464 if (!nb)
465 nb_alloc = 1;
466 else
467 nb_alloc = nb * 2;
468 pp = tcc_realloc(pp, nb_alloc * sizeof(void *));
469 *(void***)ptab = pp;
470 }
471 pp[nb++] = data;
472 *nb_ptr = nb;
473 }
474
475 ST_FUNC void dynarray_reset(void *pp, int *n)
476 {
477 void **p;
478 for (p = *(void***)pp; *n; ++p, --*n)
479 if (*p)
480 tcc_free(*p);
481 tcc_free(*(void**)pp);
482 *(void**)pp = NULL;
483 }
484
485 static void tcc_split_path(TCCState *s, void *p_ary, int *p_nb_ary, const char *in)
486 {
487 const char *p;
488 do {
489 int c;
490 CString str;
491
492 cstr_new(&str);
493 for (p = in; c = *p, c != '\0' && c != PATHSEP[0]; ++p) {
494 if (c == '{' && p[1] && p[2] == '}') {
495 c = p[1], p += 2;
496 if (c == 'B')
497 cstr_cat(&str, s->tcc_lib_path, -1);
498 if (c == 'f' && file) {
499 /* substitute current file's dir */
500 const char *f = file->true_filename;
501 const char *b = tcc_basename(f);
502 if (b > f)
503 cstr_cat(&str, f, b - f - 1);
504 else
505 cstr_cat(&str, ".", 1);
506 }
507 } else {
508 cstr_ccat(&str, c);
509 }
510 }
511 if (str.size) {
512 cstr_ccat(&str, '\0');
513 dynarray_add(p_ary, p_nb_ary, tcc_strdup(str.data));
514 }
515 cstr_free(&str);
516 in = p+1;
517 } while (*p);
518 }
519
520 /********************************************************/
521 /* warning / error */
522
523 /* warn_... option bits */
524 #define WARN_ON 1 /* warning is on (-Woption) */
525 #define WARN_ERR 2 /* warning is an error (-Werror=option) */
526 #define WARN_NOE 4 /* warning is not an error (-Wno-error=option) */
527
528 /* error1() modes */
529 enum { ERROR_WARN, ERROR_NOABORT, ERROR_ERROR };
530
531 static void error1(int mode, const char *fmt, va_list ap)
532 {
533 BufferedFile **pf, *f;
534 TCCState *s1 = tcc_state;
535 CString cs;
536
537 cstr_new(&cs);
538
539 if (s1 == NULL)
540 /* can happen only if called from tcc_malloc(): 'out of memory' */
541 goto no_file;
542
543 tcc_exit_state(s1);
544
545 if (mode == ERROR_WARN) {
546 if (s1->warn_error)
547 mode = ERROR_ERROR;
548 if (s1->warn_num) {
549 /* handle tcc_warning_c(warn_option)(fmt, ...) */
550 int wopt = *(&s1->warn_none + s1->warn_num);
551 s1->warn_num = 0;
552 if (0 == (wopt & WARN_ON))
553 return;
554 if (wopt & WARN_ERR)
555 mode = ERROR_ERROR;
556 if (wopt & WARN_NOE)
557 mode = ERROR_WARN;
558 }
559 if (s1->warn_none)
560 return;
561 }
562
563 f = NULL;
564 if (s1->error_set_jmp_enabled) { /* we're called while parsing a file */
565 /* use upper file if inline ":asm:" or token ":paste:" */
566 for (f = file; f && f->filename[0] == ':'; f = f->prev)
567 ;
568 }
569 if (f) {
570 for(pf = s1->include_stack; pf < s1->include_stack_ptr; pf++)
571 cstr_printf(&cs, "In file included from %s:%d:\n",
572 (*pf)->filename, (*pf)->line_num);
573 cstr_printf(&cs, "%s:%d: ",
574 f->filename, f->line_num - !!(tok_flags & TOK_FLAG_BOL));
575 } else if (s1->current_filename) {
576 cstr_printf(&cs, "%s: ", s1->current_filename);
577 }
578
579 no_file:
580 if (0 == cs.size)
581 cstr_printf(&cs, "tcc: ");
582 cstr_printf(&cs, mode == ERROR_WARN ? "warning: " : "error: ");
583 cstr_vprintf(&cs, fmt, ap);
584 if (!s1 || !s1->error_func) {
585 /* default case: stderr */
586 if (s1 && s1->output_type == TCC_OUTPUT_PREPROCESS && s1->ppfp == stdout)
587 printf("\n"); /* print a newline during tcc -E */
588 fflush(stdout); /* flush -v output */
589 fprintf(stderr, "%s\n", (char*)cs.data);
590 fflush(stderr); /* print error/warning now (win32) */
591 } else {
592 s1->error_func(s1->error_opaque, (char*)cs.data);
593 }
594 cstr_free(&cs);
595 if (s1) {
596 if (mode != ERROR_WARN)
597 s1->nb_errors++;
598 if (mode != ERROR_ERROR)
599 return;
600 if (s1->error_set_jmp_enabled)
601 longjmp(s1->error_jmp_buf, 1);
602 }
603 exit(1);
604 }
605
606 LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque, TCCErrorFunc error_func)
607 {
608 s->error_opaque = error_opaque;
609 s->error_func = error_func;
610 }
611
612 LIBTCCAPI TCCErrorFunc tcc_get_error_func(TCCState *s)
613 {
614 return s->error_func;
615 }
616
617 LIBTCCAPI void *tcc_get_error_opaque(TCCState *s)
618 {
619 return s->error_opaque;
620 }
621
622 /* error without aborting current compilation */
623 PUB_FUNC void _tcc_error_noabort(const char *fmt, ...)
624 {
625 va_list ap;
626 va_start(ap, fmt);
627 error1(ERROR_NOABORT, fmt, ap);
628 va_end(ap);
629 }
630
631 PUB_FUNC void _tcc_error(const char *fmt, ...)
632 {
633 va_list ap;
634 va_start(ap, fmt);
635 for (;;) error1(ERROR_ERROR, fmt, ap);
636 }
637
638 PUB_FUNC void _tcc_warning(const char *fmt, ...)
639 {
640 va_list ap;
641 va_start(ap, fmt);
642 error1(ERROR_WARN, fmt, ap);
643 va_end(ap);
644 }
645
646 /********************************************************/
647 /* I/O layer */
648
649 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen)
650 {
651 BufferedFile *bf;
652 int buflen = initlen ? initlen : IO_BUF_SIZE;
653
654 bf = tcc_mallocz(sizeof(BufferedFile) + buflen);
655 bf->buf_ptr = bf->buffer;
656 bf->buf_end = bf->buffer + initlen;
657 bf->buf_end[0] = CH_EOB; /* put eob symbol */
658 pstrcpy(bf->filename, sizeof(bf->filename), filename);
659 #ifdef _WIN32
660 normalize_slashes(bf->filename);
661 #endif
662 bf->true_filename = bf->filename;
663 bf->line_num = 1;
664 bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
665 bf->fd = -1;
666 bf->prev = file;
667 file = bf;
668 tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
669 }
670
671 ST_FUNC void tcc_close(void)
672 {
673 TCCState *s1 = tcc_state;
674 BufferedFile *bf = file;
675 if (bf->fd > 0) {
676 close(bf->fd);
677 total_lines += bf->line_num;
678 }
679 if (bf->true_filename != bf->filename)
680 tcc_free(bf->true_filename);
681 file = bf->prev;
682 tcc_free(bf);
683 }
684
685 static int _tcc_open(TCCState *s1, const char *filename)
686 {
687 int fd;
688 if (strcmp(filename, "-") == 0)
689 fd = 0, filename = "<stdin>";
690 else
691 fd = open(filename, O_RDONLY | O_BINARY);
692 if ((s1->verbose == 2 && fd >= 0) || s1->verbose == 3)
693 printf("%s %*s%s\n", fd < 0 ? "nf":"->",
694 (int)(s1->include_stack_ptr - s1->include_stack), "", filename);
695 return fd;
696 }
697
698 ST_FUNC int tcc_open(TCCState *s1, const char *filename)
699 {
700 int fd = _tcc_open(s1, filename);
701 if (fd < 0)
702 return -1;
703 tcc_open_bf(s1, filename, 0);
704 file->fd = fd;
705 return 0;
706 }
707
708 /* compile the file opened in 'file'. Return non zero if errors. */
709 static int tcc_compile(TCCState *s1, int filetype, const char *str, int fd)
710 {
711 /* Here we enter the code section where we use the global variables for
712 parsing and code generation (tccpp.c, tccgen.c, <target>-gen.c).
713 Other threads need to wait until we're done.
714
715 Alternatively we could use thread local storage for those global
716 variables, which may or may not have advantages */
717
718 tcc_enter_state(s1);
719 s1->error_set_jmp_enabled = 1;
720
721 if (setjmp(s1->error_jmp_buf) == 0) {
722 s1->nb_errors = 0;
723
724 if (fd == -1) {
725 int len = strlen(str);
726 tcc_open_bf(s1, "<string>", len);
727 memcpy(file->buffer, str, len);
728 } else {
729 tcc_open_bf(s1, str, 0);
730 file->fd = fd;
731 }
732
733 tccelf_begin_file(s1);
734 preprocess_start(s1, filetype);
735 tccgen_init(s1);
736 if (s1->output_type == TCC_OUTPUT_PREPROCESS) {
737 tcc_preprocess(s1);
738 } else if (filetype & (AFF_TYPE_ASM | AFF_TYPE_ASMPP)) {
739 tcc_assemble(s1, !!(filetype & AFF_TYPE_ASMPP));
740 } else {
741 tccgen_compile(s1);
742 }
743 }
744 tccgen_finish(s1);
745 preprocess_end(s1);
746
747 s1->error_set_jmp_enabled = 0;
748 tcc_exit_state(s1);
749
750 tccelf_end_file(s1);
751 return s1->nb_errors != 0 ? -1 : 0;
752 }
753
754 LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str)
755 {
756 return tcc_compile(s, s->filetype, str, -1);
757 }
758
759 /* define a preprocessor symbol. value can be NULL, sym can be "sym=val" */
760 LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value)
761 {
762 const char *eq;
763 if (NULL == (eq = strchr(sym, '=')))
764 eq = strchr(sym, 0);
765 if (NULL == value)
766 value = *eq ? eq + 1 : "1";
767 cstr_printf(&s1->cmdline_defs, "#define %.*s %s\n", (int)(eq-sym), sym, value);
768 }
769
770 /* undefine a preprocessor symbol */
771 LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym)
772 {
773 cstr_printf(&s1->cmdline_defs, "#undef %s\n", sym);
774 }
775
776
777 LIBTCCAPI TCCState *tcc_new(void)
778 {
779 TCCState *s;
780
781 s = tcc_mallocz(sizeof(TCCState));
782 if (!s)
783 return NULL;
784 #ifdef MEM_DEBUG
785 ++nb_states;
786 #endif
787
788 #undef gnu_ext
789
790 s->gnu_ext = 1;
791 s->tcc_ext = 1;
792 s->nocommon = 1;
793 s->dollars_in_identifiers = 1; /*on by default like in gcc/clang*/
794 s->cversion = 199901; /* default unless -std=c11 is supplied */
795 s->warn_implicit_function_declaration = 1;
796 s->warn_discarded_qualifiers = 1;
797 s->ms_extensions = 1;
798
799 #ifdef CHAR_IS_UNSIGNED
800 s->char_is_unsigned = 1;
801 #endif
802 #ifdef TCC_TARGET_I386
803 s->seg_size = 32;
804 #endif
805 /* enable this if you want symbols with leading underscore on windows: */
806 #if defined TCC_TARGET_MACHO /* || defined TCC_TARGET_PE */
807 s->leading_underscore = 1;
808 #endif
809 #ifdef TCC_TARGET_ARM
810 s->float_abi = ARM_FLOAT_ABI;
811 #endif
812
813 s->ppfp = stdout;
814 /* might be used in error() before preprocess_start() */
815 s->include_stack_ptr = s->include_stack;
816
817 tccelf_new(s);
818
819 tcc_set_lib_path(s, CONFIG_TCCDIR);
820 return s;
821 }
822
823 LIBTCCAPI void tcc_delete(TCCState *s1)
824 {
825 /* free sections */
826 tccelf_delete(s1);
827
828 /* free library paths */
829 dynarray_reset(&s1->library_paths, &s1->nb_library_paths);
830 dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths);
831
832 /* free include paths */
833 dynarray_reset(&s1->include_paths, &s1->nb_include_paths);
834 dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths);
835
836 tcc_free(s1->tcc_lib_path);
837 tcc_free(s1->soname);
838 tcc_free(s1->rpath);
839 tcc_free(s1->elf_entryname);
840 tcc_free(s1->init_symbol);
841 tcc_free(s1->fini_symbol);
842 tcc_free(s1->outfile);
843 tcc_free(s1->deps_outfile);
844 dynarray_reset(&s1->files, &s1->nb_files);
845 dynarray_reset(&s1->target_deps, &s1->nb_target_deps);
846 dynarray_reset(&s1->pragma_libs, &s1->nb_pragma_libs);
847 dynarray_reset(&s1->argv, &s1->argc);
848 cstr_free(&s1->cmdline_defs);
849 cstr_free(&s1->cmdline_incl);
850 #ifdef TCC_IS_NATIVE
851 /* free runtime memory */
852 tcc_run_free(s1);
853 #endif
854
855 tcc_free(s1);
856 #ifdef MEM_DEBUG
857 if (0 == --nb_states)
858 tcc_memcheck();
859 #endif
860 }
861
862 LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
863 {
864 s->output_type = output_type;
865
866 if (!s->nostdinc) {
867 /* default include paths */
868 /* -isystem paths have already been handled */
869 tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
870 }
871 #ifdef CONFIG_TCC_BCHECK
872 if (s->do_bounds_check) {
873 /* if bound checking, then add corresponding sections */
874 tccelf_bounds_new(s);
875 }
876 #endif
877 if (s->do_debug) {
878 /* add debug sections */
879 tccelf_stab_new(s);
880 }
881 if (output_type == TCC_OUTPUT_OBJ) {
882 /* always elf for objects */
883 s->output_format = TCC_OUTPUT_FORMAT_ELF;
884 return 0;
885 }
886
887 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
888
889 #ifdef TCC_TARGET_PE
890 # ifdef _WIN32
891 /* allow linking with system dll's directly */
892 tcc_add_systemdir(s);
893 # endif
894 /* target PE has its own startup code in libtcc1.a */
895 return 0;
896
897 #elif defined TCC_TARGET_MACHO
898 # ifdef TCC_IS_NATIVE
899 tcc_add_macos_sdkpath(s);
900 # endif
901 /* Mach-O with LC_MAIN doesn't need any crt startup code. */
902 return 0;
903
904 #else
905 /* paths for crt objects */
906 tcc_split_path(s, &s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX);
907 /* add libc crt1/crti objects */
908 if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) &&
909 !s->nostdlib) {
910 #if TARGETOS_OpenBSD
911 if (output_type != TCC_OUTPUT_DLL)
912 tcc_add_crt(s, "crt0.o");
913 if (output_type == TCC_OUTPUT_DLL)
914 tcc_add_crt(s, "crtbeginS.o");
915 else
916 tcc_add_crt(s, "crtbegin.o");
917 #elif TARGETOS_FreeBSD
918 if (output_type != TCC_OUTPUT_DLL)
919 tcc_add_crt(s, "crt1.o");
920 tcc_add_crt(s, "crti.o");
921 if (s->static_link)
922 tcc_add_crt(s, "crtbeginT.o");
923 else if (output_type == TCC_OUTPUT_DLL)
924 tcc_add_crt(s, "crtbeginS.o");
925 else
926 tcc_add_crt(s, "crtbegin.o");
927 #elif TARGETOS_NetBSD
928 if (output_type != TCC_OUTPUT_DLL)
929 tcc_add_crt(s, "crt0.o");
930 tcc_add_crt(s, "crti.o");
931 if (s->static_link)
932 tcc_add_crt(s, "crtbeginT.o");
933 else if (output_type == TCC_OUTPUT_DLL)
934 tcc_add_crt(s, "crtbeginS.o");
935 else
936 tcc_add_crt(s, "crtbegin.o");
937 #else
938 if (output_type != TCC_OUTPUT_DLL)
939 tcc_add_crt(s, "crt1.o");
940 tcc_add_crt(s, "crti.o");
941 #endif
942 }
943 return 0;
944 #endif
945 }
946
947 LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname)
948 {
949 tcc_split_path(s, &s->include_paths, &s->nb_include_paths, pathname);
950 return 0;
951 }
952
953 LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
954 {
955 tcc_split_path(s, &s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
956 return 0;
957 }
958
959 ST_FUNC DLLReference *tcc_add_dllref(TCCState *s1, const char *dllname)
960 {
961 DLLReference *ref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname));
962 strcpy(ref->name, dllname);
963 dynarray_add(&s1->loaded_dlls, &s1->nb_loaded_dlls, ref);
964 return ref;
965 }
966
967 /* OpenBSD: choose latest from libxxx.so.x.y versions */
968 #if defined TARGETOS_OpenBSD && !defined _WIN32
969 #include <glob.h>
970 static int tcc_glob_so(TCCState *s1, const char *pattern, char *buf, int size)
971 {
972 const char *star;
973 glob_t g;
974 char *p;
975 int i, v, v1, v2, v3;
976
977 star = strchr(pattern, '*');
978 if (!star || glob(pattern, 0, NULL, &g))
979 return -1;
980 for (v = -1, i = 0; i < g.gl_pathc; ++i) {
981 p = g.gl_pathv[i];
982 if (2 != sscanf(p + (star - pattern), "%d.%d.%d", &v1, &v2, &v3))
983 continue;
984 if ((v1 = v1 * 1000 + v2) > v)
985 v = v1, pstrcpy(buf, size, p);
986 }
987 globfree(&g);
988 return v;
989 }
990 #endif
991
992 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags)
993 {
994 int fd, ret = -1;
995
996 #if defined TARGETOS_OpenBSD && !defined _WIN32
997 char buf[1024];
998 if (tcc_glob_so(s1, filename, buf, sizeof buf) >= 0)
999 filename = buf;
1000 #endif
1001
1002 /* open the file */
1003 fd = _tcc_open(s1, filename);
1004 if (fd < 0) {
1005 if (flags & AFF_PRINT_ERROR)
1006 tcc_error_noabort("file '%s' not found", filename);
1007 return ret;
1008 }
1009
1010 s1->current_filename = filename;
1011 if (flags & AFF_TYPE_BIN) {
1012 ElfW(Ehdr) ehdr;
1013 int obj_type;
1014
1015 obj_type = tcc_object_type(fd, &ehdr);
1016 lseek(fd, 0, SEEK_SET);
1017
1018 switch (obj_type) {
1019
1020 case AFF_BINTYPE_REL:
1021 ret = tcc_load_object_file(s1, fd, 0);
1022 break;
1023
1024 case AFF_BINTYPE_AR:
1025 ret = tcc_load_archive(s1, fd, !(flags & AFF_WHOLE_ARCHIVE));
1026 break;
1027
1028 #ifdef TCC_TARGET_PE
1029 default:
1030 ret = pe_load_file(s1, fd, filename);
1031 goto check_success;
1032
1033 #elif defined TCC_TARGET_MACHO
1034 case AFF_BINTYPE_DYN:
1035 case_dyn_or_tbd:
1036 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1037 #ifdef TCC_IS_NATIVE
1038 void* dl;
1039 const char* soname = filename;
1040 if (obj_type != AFF_BINTYPE_DYN)
1041 soname = macho_tbd_soname(filename);
1042 dl = dlopen(soname, RTLD_GLOBAL | RTLD_LAZY);
1043 if (dl)
1044 tcc_add_dllref(s1, soname)->handle = dl, ret = 0;
1045 if (filename != soname)
1046 tcc_free((void *)soname);
1047 #endif
1048 } else if (obj_type == AFF_BINTYPE_DYN) {
1049 ret = macho_load_dll(s1, fd, filename, (flags & AFF_REFERENCED_DLL) != 0);
1050 } else {
1051 ret = macho_load_tbd(s1, fd, filename, (flags & AFF_REFERENCED_DLL) != 0);
1052 }
1053 break;
1054 default:
1055 {
1056 const char *ext = tcc_fileextension(filename);
1057 if (!strcmp(ext, ".tbd"))
1058 goto case_dyn_or_tbd;
1059 if (!strcmp(ext, ".dylib")) {
1060 obj_type = AFF_BINTYPE_DYN;
1061 goto case_dyn_or_tbd;
1062 }
1063 goto check_success;
1064 }
1065
1066 #else /* unix */
1067 case AFF_BINTYPE_DYN:
1068 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1069 #ifdef TCC_IS_NATIVE
1070 void* dl = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
1071 if (dl)
1072 tcc_add_dllref(s1, filename)->handle = dl, ret = 0;
1073 #endif
1074 } else
1075 ret = tcc_load_dll(s1, fd, filename, (flags & AFF_REFERENCED_DLL) != 0);
1076 break;
1077
1078 default:
1079 /* as GNU ld, consider it is an ld script if not recognized */
1080 ret = tcc_load_ldscript(s1, fd);
1081 goto check_success;
1082
1083 #endif /* pe / macos / unix */
1084
1085 check_success:
1086 if (ret < 0)
1087 tcc_error_noabort("%s: unrecognized file type", filename);
1088 break;
1089
1090 #ifdef TCC_TARGET_COFF
1091 case AFF_BINTYPE_C67:
1092 ret = tcc_load_coff(s1, fd);
1093 break;
1094 #endif
1095 }
1096 close(fd);
1097 } else {
1098 /* update target deps */
1099 dynarray_add(&s1->target_deps, &s1->nb_target_deps, tcc_strdup(filename));
1100 ret = tcc_compile(s1, flags, filename, fd);
1101 }
1102 s1->current_filename = NULL;
1103 return ret;
1104 }
1105
1106 LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename)
1107 {
1108 int filetype = s->filetype;
1109 if (0 == (filetype & AFF_TYPE_MASK)) {
1110 /* use a file extension to detect a filetype */
1111 const char *ext = tcc_fileextension(filename);
1112 if (ext[0]) {
1113 ext++;
1114 if (!strcmp(ext, "S"))
1115 filetype = AFF_TYPE_ASMPP;
1116 else if (!strcmp(ext, "s"))
1117 filetype = AFF_TYPE_ASM;
1118 else if (!PATHCMP(ext, "c")
1119 || !PATHCMP(ext, "h")
1120 || !PATHCMP(ext, "i"))
1121 filetype = AFF_TYPE_C;
1122 else
1123 filetype |= AFF_TYPE_BIN;
1124 } else {
1125 filetype = AFF_TYPE_C;
1126 }
1127 }
1128 return tcc_add_file_internal(s, filename, filetype | AFF_PRINT_ERROR);
1129 }
1130
1131 LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
1132 {
1133 tcc_split_path(s, &s->library_paths, &s->nb_library_paths, pathname);
1134 return 0;
1135 }
1136
1137 static int tcc_add_library_internal(TCCState *s, const char *fmt,
1138 const char *filename, int flags, char **paths, int nb_paths)
1139 {
1140 char buf[1024];
1141 int i;
1142
1143 for(i = 0; i < nb_paths; i++) {
1144 snprintf(buf, sizeof(buf), fmt, paths[i], filename);
1145 if (tcc_add_file_internal(s, buf, flags | AFF_TYPE_BIN) == 0)
1146 return 0;
1147 }
1148 return -1;
1149 }
1150
1151 #ifndef TCC_TARGET_MACHO
1152 /* find and load a dll. Return non zero if not found */
1153 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
1154 {
1155 return tcc_add_library_internal(s, "%s/%s", filename, flags,
1156 s->library_paths, s->nb_library_paths);
1157 }
1158 #endif
1159
1160 #if !defined TCC_TARGET_PE && !defined TCC_TARGET_MACHO
1161 ST_FUNC int tcc_add_crt(TCCState *s1, const char *filename)
1162 {
1163 if (-1 == tcc_add_library_internal(s1, "%s/%s",
1164 filename, 0, s1->crt_paths, s1->nb_crt_paths))
1165 tcc_error_noabort("file '%s' not found", filename);
1166 return 0;
1167 }
1168 #endif
1169
1170 /* the library name is the same as the argument of the '-l' option */
1171 LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname)
1172 {
1173 #if defined TCC_TARGET_PE
1174 static const char * const libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL };
1175 const char * const *pp = s->static_link ? libs + 4 : libs;
1176 #elif defined TCC_TARGET_MACHO
1177 static const char * const libs[] = { "%s/lib%s.dylib", "%s/lib%s.tbd", "%s/lib%s.a", NULL };
1178 const char * const *pp = s->static_link ? libs + 2 : libs;
1179 #elif defined TARGETOS_OpenBSD
1180 static const char * const libs[] = { "%s/lib%s.so.*", "%s/lib%s.a", NULL };
1181 const char * const *pp = s->static_link ? libs + 1 : libs;
1182 #else
1183 static const char * const libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL };
1184 const char * const *pp = s->static_link ? libs + 1 : libs;
1185 #endif
1186 int flags = s->filetype & AFF_WHOLE_ARCHIVE;
1187 while (*pp) {
1188 if (0 == tcc_add_library_internal(s, *pp,
1189 libraryname, flags, s->library_paths, s->nb_library_paths))
1190 return 0;
1191 ++pp;
1192 }
1193 return -1;
1194 }
1195
1196 PUB_FUNC int tcc_add_library_err(TCCState *s1, const char *libname)
1197 {
1198 int ret = tcc_add_library(s1, libname);
1199 if (ret < 0)
1200 tcc_error_noabort("library '%s' not found", libname);
1201 return ret;
1202 }
1203
1204 /* handle #pragma comment(lib,) */
1205 ST_FUNC void tcc_add_pragma_libs(TCCState *s1)
1206 {
1207 int i;
1208 for (i = 0; i < s1->nb_pragma_libs; i++)
1209 tcc_add_library_err(s1, s1->pragma_libs[i]);
1210 }
1211
1212 LIBTCCAPI int tcc_add_symbol(TCCState *s1, const char *name, const void *val)
1213 {
1214 #ifdef TCC_TARGET_PE
1215 /* On x86_64 'val' might not be reachable with a 32bit offset.
1216 So it is handled here as if it were in a DLL. */
1217 pe_putimport(s1, 0, name, (uintptr_t)val);
1218 #else
1219 char buf[256];
1220 if (s1->leading_underscore) {
1221 buf[0] = '_';
1222 pstrcpy(buf + 1, sizeof(buf) - 1, name);
1223 name = buf;
1224 }
1225 set_global_sym(s1, name, NULL, (addr_t)(uintptr_t)val); /* NULL: SHN_ABS */
1226 #endif
1227 return 0;
1228 }
1229
1230 LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path)
1231 {
1232 tcc_free(s->tcc_lib_path);
1233 s->tcc_lib_path = tcc_strdup(path);
1234 }
1235
1236 /********************************************************/
1237 /* options parser */
1238
1239 static int strstart(const char *val, const char **str)
1240 {
1241 const char *p, *q;
1242 p = *str;
1243 q = val;
1244 while (*q) {
1245 if (*p != *q)
1246 return 0;
1247 p++;
1248 q++;
1249 }
1250 *str = p;
1251 return 1;
1252 }
1253
1254 /* Like strstart, but automatically takes into account that ld options can
1255 *
1256 * - start with double or single dash (e.g. '--soname' or '-soname')
1257 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1258 * or '-Wl,-soname=x.so')
1259 *
1260 * you provide `val` always in 'option[=]' form (no leading -)
1261 */
1262 static int link_option(const char *str, const char *val, const char **ptr)
1263 {
1264 const char *p, *q;
1265 int ret;
1266
1267 /* there should be 1 or 2 dashes */
1268 if (*str++ != '-')
1269 return 0;
1270 if (*str == '-')
1271 str++;
1272
1273 /* then str & val should match (potentially up to '=') */
1274 p = str;
1275 q = val;
1276
1277 ret = 1;
1278 if (q[0] == '?') {
1279 ++q;
1280 if (strstart("no-", &p))
1281 ret = -1;
1282 }
1283
1284 while (*q != '\0' && *q != '=') {
1285 if (*p != *q)
1286 return 0;
1287 p++;
1288 q++;
1289 }
1290
1291 /* '=' near eos means ',' or '=' is ok */
1292 if (*q == '=') {
1293 if (*p == 0)
1294 *ptr = p;
1295 if (*p != ',' && *p != '=')
1296 return 0;
1297 p++;
1298 } else if (*p) {
1299 return 0;
1300 }
1301 *ptr = p;
1302 return ret;
1303 }
1304
1305 static const char *skip_linker_arg(const char **str)
1306 {
1307 const char *s1 = *str;
1308 const char *s2 = strchr(s1, ',');
1309 *str = s2 ? s2++ : (s2 = s1 + strlen(s1));
1310 return s2;
1311 }
1312
1313 static void copy_linker_arg(char **pp, const char *s, int sep)
1314 {
1315 const char *q = s;
1316 char *p = *pp;
1317 int l = 0;
1318 if (p && sep)
1319 p[l = strlen(p)] = sep, ++l;
1320 skip_linker_arg(&q);
1321 pstrncpy(l + (*pp = tcc_realloc(p, q - s + l + 1)), s, q - s);
1322 }
1323
1324 /* set linker options */
1325 static int tcc_set_linker(TCCState *s, const char *option)
1326 {
1327 TCCState *s1 = s;
1328 while (*option) {
1329
1330 const char *p = NULL;
1331 char *end = NULL;
1332 int ignoring = 0;
1333 int ret;
1334
1335 if (link_option(option, "Bsymbolic", &p)) {
1336 s->symbolic = 1;
1337 } else if (link_option(option, "nostdlib", &p)) {
1338 s->nostdlib = 1;
1339 } else if (link_option(option, "e=", &p)) {
1340 copy_linker_arg(&s->elf_entryname, p, 0);
1341 } else if (link_option(option, "fini=", &p)) {
1342 copy_linker_arg(&s->fini_symbol, p, 0);
1343 ignoring = 1;
1344 } else if (link_option(option, "image-base=", &p)
1345 || link_option(option, "Ttext=", &p)) {
1346 s->text_addr = strtoull(p, &end, 16);
1347 s->has_text_addr = 1;
1348 } else if (link_option(option, "init=", &p)) {
1349 copy_linker_arg(&s->init_symbol, p, 0);
1350 ignoring = 1;
1351 } else if (link_option(option, "oformat=", &p)) {
1352 #if defined(TCC_TARGET_PE)
1353 if (strstart("pe-", &p)) {
1354 #elif PTR_SIZE == 8
1355 if (strstart("elf64-", &p)) {
1356 #else
1357 if (strstart("elf32-", &p)) {
1358 #endif
1359 s->output_format = TCC_OUTPUT_FORMAT_ELF;
1360 } else if (!strcmp(p, "binary")) {
1361 s->output_format = TCC_OUTPUT_FORMAT_BINARY;
1362 #ifdef TCC_TARGET_COFF
1363 } else if (!strcmp(p, "coff")) {
1364 s->output_format = TCC_OUTPUT_FORMAT_COFF;
1365 #endif
1366 } else
1367 goto err;
1368
1369 } else if (link_option(option, "as-needed", &p)) {
1370 ignoring = 1;
1371 } else if (link_option(option, "O", &p)) {
1372 ignoring = 1;
1373 } else if (link_option(option, "export-all-symbols", &p)) {
1374 s->rdynamic = 1;
1375 } else if (link_option(option, "export-dynamic", &p)) {
1376 s->rdynamic = 1;
1377 } else if (link_option(option, "rpath=", &p)) {
1378 copy_linker_arg(&s->rpath, p, ':');
1379 } else if (link_option(option, "enable-new-dtags", &p)) {
1380 s->enable_new_dtags = 1;
1381 } else if (link_option(option, "section-alignment=", &p)) {
1382 s->section_align = strtoul(p, &end, 16);
1383 } else if (link_option(option, "soname=", &p)) {
1384 copy_linker_arg(&s->soname, p, 0);
1385 #ifdef TCC_TARGET_PE
1386 } else if (link_option(option, "large-address-aware", &p)) {
1387 s->pe_characteristics |= 0x20;
1388 } else if (link_option(option, "file-alignment=", &p)) {
1389 s->pe_file_align = strtoul(p, &end, 16);
1390 } else if (link_option(option, "stack=", &p)) {
1391 s->pe_stack_size = strtoul(p, &end, 10);
1392 } else if (link_option(option, "subsystem=", &p)) {
1393 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1394 if (!strcmp(p, "native")) {
1395 s->pe_subsystem = 1;
1396 } else if (!strcmp(p, "console")) {
1397 s->pe_subsystem = 3;
1398 } else if (!strcmp(p, "gui") || !strcmp(p, "windows")) {
1399 s->pe_subsystem = 2;
1400 } else if (!strcmp(p, "posix")) {
1401 s->pe_subsystem = 7;
1402 } else if (!strcmp(p, "efiapp")) {
1403 s->pe_subsystem = 10;
1404 } else if (!strcmp(p, "efiboot")) {
1405 s->pe_subsystem = 11;
1406 } else if (!strcmp(p, "efiruntime")) {
1407 s->pe_subsystem = 12;
1408 } else if (!strcmp(p, "efirom")) {
1409 s->pe_subsystem = 13;
1410 #elif defined(TCC_TARGET_ARM)
1411 if (!strcmp(p, "wince")) {
1412 s->pe_subsystem = 9;
1413 #endif
1414 } else
1415 goto err;
1416 #endif
1417 } else if (ret = link_option(option, "?whole-archive", &p), ret) {
1418 if (ret > 0)
1419 s->filetype |= AFF_WHOLE_ARCHIVE;
1420 else
1421 s->filetype &= ~AFF_WHOLE_ARCHIVE;
1422 } else if (link_option(option, "z=", &p)) {
1423 ignoring = 1;
1424 } else if (p) {
1425 return 0;
1426 } else {
1427 err:
1428 tcc_error("unsupported linker option '%s'", option);
1429 }
1430 if (ignoring)
1431 tcc_warning_c(warn_unsupported)("unsupported linker option '%s'", option);
1432 option = skip_linker_arg(&p);
1433 }
1434 return 1;
1435 }
1436
1437 typedef struct TCCOption {
1438 const char *name;
1439 uint16_t index;
1440 uint16_t flags;
1441 } TCCOption;
1442
1443 enum {
1444 TCC_OPTION_ignored = 0,
1445 TCC_OPTION_HELP,
1446 TCC_OPTION_HELP2,
1447 TCC_OPTION_v,
1448 TCC_OPTION_I,
1449 TCC_OPTION_D,
1450 TCC_OPTION_U,
1451 TCC_OPTION_P,
1452 TCC_OPTION_L,
1453 TCC_OPTION_B,
1454 TCC_OPTION_l,
1455 TCC_OPTION_bench,
1456 TCC_OPTION_bt,
1457 TCC_OPTION_b,
1458 TCC_OPTION_ba,
1459 TCC_OPTION_g,
1460 TCC_OPTION_c,
1461 TCC_OPTION_dumpversion,
1462 TCC_OPTION_d,
1463 TCC_OPTION_static,
1464 TCC_OPTION_std,
1465 TCC_OPTION_shared,
1466 TCC_OPTION_soname,
1467 TCC_OPTION_o,
1468 TCC_OPTION_r,
1469 TCC_OPTION_Wl,
1470 TCC_OPTION_Wp,
1471 TCC_OPTION_W,
1472 TCC_OPTION_O,
1473 TCC_OPTION_mfloat_abi,
1474 TCC_OPTION_m,
1475 TCC_OPTION_f,
1476 TCC_OPTION_isystem,
1477 TCC_OPTION_iwithprefix,
1478 TCC_OPTION_include,
1479 TCC_OPTION_nostdinc,
1480 TCC_OPTION_nostdlib,
1481 TCC_OPTION_print_search_dirs,
1482 TCC_OPTION_rdynamic,
1483 TCC_OPTION_pthread,
1484 TCC_OPTION_run,
1485 TCC_OPTION_w,
1486 TCC_OPTION_E,
1487 TCC_OPTION_M,
1488 TCC_OPTION_MD,
1489 TCC_OPTION_MF,
1490 TCC_OPTION_MM,
1491 TCC_OPTION_MMD,
1492 TCC_OPTION_x,
1493 TCC_OPTION_ar,
1494 TCC_OPTION_impdef,
1495 };
1496
1497 #define TCC_OPTION_HAS_ARG 0x0001
1498 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1499
1500 static const TCCOption tcc_options[] = {
1501 { "h", TCC_OPTION_HELP, 0 },
1502 { "-help", TCC_OPTION_HELP, 0 },
1503 { "?", TCC_OPTION_HELP, 0 },
1504 { "hh", TCC_OPTION_HELP2, 0 },
1505 { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1506 { "-version", TCC_OPTION_v, 0 }, /* handle as verbose, also prints version*/
1507 { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG },
1508 { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG },
1509 { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG },
1510 { "P", TCC_OPTION_P, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1511 { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG },
1512 { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG },
1513 { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG },
1514 { "bench", TCC_OPTION_bench, 0 },
1515 #ifdef CONFIG_TCC_BACKTRACE
1516 { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1517 #endif
1518 #ifdef CONFIG_TCC_BCHECK
1519 { "b", TCC_OPTION_b, 0 },
1520 #endif
1521 { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1522 { "c", TCC_OPTION_c, 0 },
1523 { "dumpversion", TCC_OPTION_dumpversion, 0},
1524 { "d", TCC_OPTION_d, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1525 { "static", TCC_OPTION_static, 0 },
1526 { "std", TCC_OPTION_std, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1527 { "shared", TCC_OPTION_shared, 0 },
1528 { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG },
1529 { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG },
1530 { "pthread", TCC_OPTION_pthread, 0},
1531 { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1532 { "rdynamic", TCC_OPTION_rdynamic, 0 },
1533 { "r", TCC_OPTION_r, 0 },
1534 { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1535 { "Wp,", TCC_OPTION_Wp, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1536 { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1537 { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1538 #ifdef TCC_TARGET_ARM
1539 { "mfloat-abi", TCC_OPTION_mfloat_abi, TCC_OPTION_HAS_ARG },
1540 #endif
1541 { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1542 { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1543 { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
1544 { "include", TCC_OPTION_include, TCC_OPTION_HAS_ARG },
1545 { "nostdinc", TCC_OPTION_nostdinc, 0 },
1546 { "nostdlib", TCC_OPTION_nostdlib, 0 },
1547 { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 },
1548 { "w", TCC_OPTION_w, 0 },
1549 { "E", TCC_OPTION_E, 0},
1550 { "M", TCC_OPTION_M, 0},
1551 { "MD", TCC_OPTION_MD, 0},
1552 { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG },
1553 { "MM", TCC_OPTION_MM, 0},
1554 { "MMD", TCC_OPTION_MMD, 0},
1555 { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG },
1556 { "ar", TCC_OPTION_ar, 0},
1557 #ifdef TCC_TARGET_PE
1558 { "impdef", TCC_OPTION_impdef, 0},
1559 #endif
1560 /* ignored (silently, except after -Wunsupported) */
1561 { "arch", 0, TCC_OPTION_HAS_ARG},
1562 { "C", 0, 0 },
1563 { "-param", 0, TCC_OPTION_HAS_ARG },
1564 { "pedantic", 0, 0 },
1565 { "pipe", 0, 0 },
1566 { "s", 0, 0 },
1567 { "traditional", 0, 0 },
1568 { NULL, 0, 0 },
1569 };
1570
1571 typedef struct FlagDef {
1572 uint16_t offset;
1573 uint16_t flags;
1574 const char *name;
1575 } FlagDef;
1576
1577 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1578 #define FD_INVERT 0x0002 /* invert value before storing */
1579
1580 static const FlagDef options_W[] = {
1581 { offsetof(TCCState, warn_all), WD_ALL, "all" },
1582 { offsetof(TCCState, warn_error), 0, "error" },
1583 { offsetof(TCCState, warn_write_strings), 0, "write-strings" },
1584 { offsetof(TCCState, warn_unsupported), 0, "unsupported" },
1585 { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL, "implicit-function-declaration" },
1586 { offsetof(TCCState, warn_discarded_qualifiers), WD_ALL, "discarded-qualifiers" },
1587 { 0, 0, NULL }
1588 };
1589
1590 static const FlagDef options_f[] = {
1591 { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
1592 { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
1593 { offsetof(TCCState, nocommon), FD_INVERT, "common" },
1594 { offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
1595 { offsetof(TCCState, ms_extensions), 0, "ms-extensions" },
1596 { offsetof(TCCState, dollars_in_identifiers), 0, "dollars-in-identifiers" },
1597 { offsetof(TCCState, test_coverage), 0, "test-coverage" },
1598 { 0, 0, NULL }
1599 };
1600
1601 static const FlagDef options_m[] = {
1602 { offsetof(TCCState, ms_bitfields), 0, "ms-bitfields" },
1603 #ifdef TCC_TARGET_X86_64
1604 { offsetof(TCCState, nosse), FD_INVERT, "sse" },
1605 #endif
1606 { 0, 0, NULL }
1607 };
1608
1609 static int set_flag(TCCState *s, const FlagDef *flags, const char *name)
1610 {
1611 int value, mask, ret;
1612 const FlagDef *p;
1613 const char *r;
1614 unsigned char *f;
1615
1616 r = name, value = !strstart("no-", &r), mask = 0;
1617
1618 /* when called with options_W, look for -W[no-]error=<option> */
1619 if ((flags->flags & WD_ALL) && strstart("error=", &r))
1620 value = value ? WARN_ON|WARN_ERR : WARN_NOE, mask = WARN_ON;
1621
1622 for (ret = -1, p = flags; p->name; ++p) {
1623 if (ret) {
1624 if (strcmp(r, p->name))
1625 continue;
1626 } else {
1627 if (0 == (p->flags & WD_ALL))
1628 continue;
1629 }
1630
1631 f = (unsigned char *)s + p->offset;
1632 *f = (*f & mask) | (value ^ !!(p->flags & FD_INVERT));
1633
1634 if (ret) {
1635 ret = 0;
1636 if (strcmp(r, "all"))
1637 break;
1638 }
1639 }
1640 return ret;
1641 }
1642
1643 static void args_parser_add_file(TCCState *s, const char* filename, int filetype)
1644 {
1645 struct filespec *f = tcc_malloc(sizeof *f + strlen(filename));
1646 f->type = filetype;
1647 strcpy(f->name, filename);
1648 dynarray_add(&s->files, &s->nb_files, f);
1649 }
1650
1651 static int args_parser_make_argv(const char *r, int *argc, char ***argv)
1652 {
1653 int ret = 0, q, c;
1654 CString str;
1655 for(;;) {
1656 while (c = (unsigned char)*r, c && c <= ' ')
1657 ++r;
1658 if (c == 0)
1659 break;
1660 q = 0;
1661 cstr_new(&str);
1662 while (c = (unsigned char)*r, c) {
1663 ++r;
1664 if (c == '\\' && (*r == '"' || *r == '\\')) {
1665 c = *r++;
1666 } else if (c == '"') {
1667 q = !q;
1668 continue;
1669 } else if (q == 0 && c <= ' ') {
1670 break;
1671 }
1672 cstr_ccat(&str, c);
1673 }
1674 cstr_ccat(&str, 0);
1675 //printf("<%s>\n", str.data), fflush(stdout);
1676 dynarray_add(argv, argc, tcc_strdup(str.data));
1677 cstr_free(&str);
1678 ++ret;
1679 }
1680 return ret;
1681 }
1682
1683 /* read list file */
1684 static void args_parser_listfile(TCCState *s,
1685 const char *filename, int optind, int *pargc, char ***pargv)
1686 {
1687 TCCState *s1 = s;
1688 int fd, i;
1689 char *p;
1690 int argc = 0;
1691 char **argv = NULL;
1692
1693 fd = open(filename, O_RDONLY | O_BINARY);
1694 if (fd < 0)
1695 tcc_error("listfile '%s' not found", filename);
1696
1697 p = tcc_load_text(fd);
1698 for (i = 0; i < *pargc; ++i)
1699 if (i == optind)
1700 args_parser_make_argv(p, &argc, &argv);
1701 else
1702 dynarray_add(&argv, &argc, tcc_strdup((*pargv)[i]));
1703
1704 tcc_free(p);
1705 dynarray_reset(&s->argv, &s->argc);
1706 *pargc = s->argc = argc, *pargv = s->argv = argv;
1707 }
1708
1709 #ifdef CONFIG_DWARF
1710 #define DWARF_VERSION atoi(CONFIG_DWARF)
1711 #else
1712 #define DWARF_VERSION 0
1713 #endif
1714
1715 PUB_FUNC int tcc_parse_args(TCCState *s, int *pargc, char ***pargv, int optind)
1716 {
1717 TCCState *s1 = s;
1718 const TCCOption *popt;
1719 const char *optarg, *r;
1720 const char *run = NULL;
1721 int x;
1722 CString linker_arg; /* collect -Wl options */
1723 int tool = 0, arg_start = 0, noaction = optind;
1724 char **argv = *pargv;
1725 int argc = *pargc;
1726
1727 cstr_new(&linker_arg);
1728
1729 while (optind < argc) {
1730 r = argv[optind];
1731 if (r[0] == '@' && r[1] != '\0') {
1732 args_parser_listfile(s, r + 1, optind, &argc, &argv);
1733 continue;
1734 }
1735 optind++;
1736 if (tool) {
1737 if (r[0] == '-' && r[1] == 'v' && r[2] == 0)
1738 ++s->verbose;
1739 continue;
1740 }
1741 reparse:
1742 if (r[0] != '-' || r[1] == '\0') {
1743 if (r[0] != '@') /* allow "tcc file(s) -run @ args ..." */
1744 args_parser_add_file(s, r, s->filetype);
1745 if (run) {
1746 tcc_set_options(s, run);
1747 arg_start = optind - 1;
1748 break;
1749 }
1750 continue;
1751 }
1752
1753 /* find option in table */
1754 for(popt = tcc_options; ; ++popt) {
1755 const char *p1 = popt->name;
1756 const char *r1 = r + 1;
1757 if (p1 == NULL)
1758 tcc_error("invalid option -- '%s'", r);
1759 if (!strstart(p1, &r1))
1760 continue;
1761 optarg = r1;
1762 if (popt->flags & TCC_OPTION_HAS_ARG) {
1763 if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) {
1764 if (optind >= argc)
1765 arg_err:
1766 tcc_error("argument to '%s' is missing", r);
1767 optarg = argv[optind++];
1768 }
1769 } else if (*r1 != '\0')
1770 continue;
1771 break;
1772 }
1773
1774 switch(popt->index) {
1775 case TCC_OPTION_HELP:
1776 x = OPT_HELP;
1777 goto extra_action;
1778 case TCC_OPTION_HELP2:
1779 x = OPT_HELP2;
1780 goto extra_action;
1781 case TCC_OPTION_I:
1782 tcc_add_include_path(s, optarg);
1783 break;
1784 case TCC_OPTION_D:
1785 tcc_define_symbol(s, optarg, NULL);
1786 break;
1787 case TCC_OPTION_U:
1788 tcc_undefine_symbol(s, optarg);
1789 break;
1790 case TCC_OPTION_L:
1791 tcc_add_library_path(s, optarg);
1792 break;
1793 case TCC_OPTION_B:
1794 /* set tcc utilities path (mainly for tcc development) */
1795 tcc_set_lib_path(s, optarg);
1796 break;
1797 case TCC_OPTION_l:
1798 args_parser_add_file(s, optarg, AFF_TYPE_LIB | (s->filetype & ~AFF_TYPE_MASK));
1799 s->nb_libraries++;
1800 break;
1801 case TCC_OPTION_pthread:
1802 s->option_pthread = 1;
1803 break;
1804 case TCC_OPTION_bench:
1805 s->do_bench = 1;
1806 break;
1807 #ifdef CONFIG_TCC_BACKTRACE
1808 case TCC_OPTION_bt:
1809 s->rt_num_callers = atoi(optarg);
1810 s->do_backtrace = 1;
1811 s->do_debug = 1;
1812 s->dwarf = DWARF_VERSION;
1813 break;
1814 #endif
1815 #ifdef CONFIG_TCC_BCHECK
1816 case TCC_OPTION_b:
1817 s->do_bounds_check = 1;
1818 s->do_backtrace = 1;
1819 s->do_debug = 1;
1820 s->dwarf = DWARF_VERSION;
1821 break;
1822 #endif
1823 case TCC_OPTION_g:
1824 s->do_debug = 1;
1825 s->dwarf = DWARF_VERSION;
1826 if (*optarg == 'd') {
1827 s->dwarf = 5;
1828 if (!strncmp(optarg,"dwarf-",6))
1829 s->dwarf = atoi(optarg + 6);
1830 }
1831 break;
1832 case TCC_OPTION_c:
1833 x = TCC_OUTPUT_OBJ;
1834 set_output_type:
1835 if (s->output_type)
1836 tcc_warning("-%s: overriding compiler action already specified", popt->name);
1837 s->output_type = x;
1838 break;
1839 case TCC_OPTION_d:
1840 if (*optarg == 'D')
1841 s->dflag = 3;
1842 else if (*optarg == 'M')
1843 s->dflag = 7;
1844 else if (*optarg == 't')
1845 s->dflag = 16;
1846 else if (isnum(*optarg))
1847 s->g_debug |= atoi(optarg);
1848 else
1849 goto unsupported_option;
1850 break;
1851 case TCC_OPTION_static:
1852 s->static_link = 1;
1853 break;
1854 case TCC_OPTION_std:
1855 if (strcmp(optarg, "=c11") == 0)
1856 s->cversion = 201112;
1857 break;
1858 case TCC_OPTION_shared:
1859 x = TCC_OUTPUT_DLL;
1860 goto set_output_type;
1861 case TCC_OPTION_soname:
1862 s->soname = tcc_strdup(optarg);
1863 break;
1864 case TCC_OPTION_o:
1865 if (s->outfile) {
1866 tcc_warning("multiple -o option");
1867 tcc_free(s->outfile);
1868 }
1869 s->outfile = tcc_strdup(optarg);
1870 break;
1871 case TCC_OPTION_r:
1872 /* generate a .o merging several output files */
1873 s->option_r = 1;
1874 x = TCC_OUTPUT_OBJ;
1875 goto set_output_type;
1876 case TCC_OPTION_isystem:
1877 tcc_add_sysinclude_path(s, optarg);
1878 break;
1879 case TCC_OPTION_include:
1880 cstr_printf(&s->cmdline_incl, "#include \"%s\"\n", optarg);
1881 break;
1882 case TCC_OPTION_nostdinc:
1883 s->nostdinc = 1;
1884 break;
1885 case TCC_OPTION_nostdlib:
1886 s->nostdlib = 1;
1887 break;
1888 case TCC_OPTION_run:
1889 #ifndef TCC_IS_NATIVE
1890 tcc_error("-run is not available in a cross compiler");
1891 #endif
1892 run = optarg;
1893 x = TCC_OUTPUT_MEMORY;
1894 goto set_output_type;
1895 case TCC_OPTION_v:
1896 do ++s->verbose; while (*optarg++ == 'v');
1897 ++noaction;
1898 break;
1899 case TCC_OPTION_f:
1900 if (set_flag(s, options_f, optarg) < 0)
1901 goto unsupported_option;
1902 break;
1903 #ifdef TCC_TARGET_ARM
1904 case TCC_OPTION_mfloat_abi:
1905 /* tcc doesn't support soft float yet */
1906 if (!strcmp(optarg, "softfp")) {
1907 s->float_abi = ARM_SOFTFP_FLOAT;
1908 } else if (!strcmp(optarg, "hard"))
1909 s->float_abi = ARM_HARD_FLOAT;
1910 else
1911 tcc_error("unsupported float abi '%s'", optarg);
1912 break;
1913 #endif
1914 case TCC_OPTION_m:
1915 if (set_flag(s, options_m, optarg) < 0) {
1916 if (x = atoi(optarg), x != 32 && x != 64)
1917 goto unsupported_option;
1918 if (PTR_SIZE != x/8)
1919 return x;
1920 ++noaction;
1921 }
1922 break;
1923 case TCC_OPTION_W:
1924 s->warn_none = 0;
1925 if (optarg[0] && set_flag(s, options_W, optarg) < 0)
1926 goto unsupported_option;
1927 break;
1928 case TCC_OPTION_w:
1929 s->warn_none = 1;
1930 break;
1931 case TCC_OPTION_rdynamic:
1932 s->rdynamic = 1;
1933 break;
1934 case TCC_OPTION_Wl:
1935 if (linker_arg.size)
1936 --linker_arg.size, cstr_ccat(&linker_arg, ',');
1937 cstr_cat(&linker_arg, optarg, 0);
1938 if (tcc_set_linker(s, linker_arg.data))
1939 cstr_free(&linker_arg);
1940 break;
1941 case TCC_OPTION_Wp:
1942 r = optarg;
1943 goto reparse;
1944 case TCC_OPTION_E:
1945 x = TCC_OUTPUT_PREPROCESS;
1946 goto set_output_type;
1947 case TCC_OPTION_P:
1948 s->Pflag = atoi(optarg) + 1;
1949 break;
1950 case TCC_OPTION_M:
1951 s->include_sys_deps = 1;
1952 // fall through
1953 case TCC_OPTION_MM:
1954 s->just_deps = 1;
1955 if(!s->deps_outfile)
1956 s->deps_outfile = tcc_strdup("-");
1957 // fall through
1958 case TCC_OPTION_MMD:
1959 s->gen_deps = 1;
1960 break;
1961 case TCC_OPTION_MD:
1962 s->gen_deps = 1;
1963 s->include_sys_deps = 1;
1964 break;
1965 case TCC_OPTION_MF:
1966 s->deps_outfile = tcc_strdup(optarg);
1967 break;
1968 case TCC_OPTION_dumpversion:
1969 printf ("%s\n", TCC_VERSION);
1970 exit(0);
1971 break;
1972 case TCC_OPTION_x:
1973 x = 0;
1974 if (*optarg == 'c')
1975 x = AFF_TYPE_C;
1976 else if (*optarg == 'a')
1977 x = AFF_TYPE_ASMPP;
1978 else if (*optarg == 'b')
1979 x = AFF_TYPE_BIN;
1980 else if (*optarg == 'n')
1981 x = AFF_TYPE_NONE;
1982 else
1983 tcc_warning("unsupported language '%s'", optarg);
1984 s->filetype = x | (s->filetype & ~AFF_TYPE_MASK);
1985 break;
1986 case TCC_OPTION_O:
1987 s->optimize = atoi(optarg);
1988 break;
1989 case TCC_OPTION_print_search_dirs:
1990 x = OPT_PRINT_DIRS;
1991 goto extra_action;
1992 case TCC_OPTION_impdef:
1993 x = OPT_IMPDEF;
1994 goto extra_action;
1995 case TCC_OPTION_ar:
1996 x = OPT_AR;
1997 extra_action:
1998 arg_start = optind - 1;
1999 if (arg_start != noaction)
2000 tcc_error("cannot parse %s here", r);
2001 tool = x;
2002 break;
2003 default:
2004 unsupported_option:
2005 tcc_warning_c(warn_unsupported)("unsupported option '%s'", r);
2006 break;
2007 }
2008 }
2009 if (linker_arg.size) {
2010 r = linker_arg.data;
2011 goto arg_err;
2012 }
2013 *pargc = argc - arg_start;
2014 *pargv = argv + arg_start;
2015 if (tool)
2016 return tool;
2017 if (optind != noaction)
2018 return 0;
2019 if (s->verbose == 2)
2020 return OPT_PRINT_DIRS;
2021 if (s->verbose)
2022 return OPT_V;
2023 return OPT_HELP;
2024 }
2025
2026 LIBTCCAPI void tcc_set_options(TCCState *s, const char *r)
2027 {
2028 char **argv = NULL;
2029 int argc = 0;
2030 args_parser_make_argv(r, &argc, &argv);
2031 tcc_parse_args(s, &argc, &argv, 0);
2032 dynarray_reset(&argv, &argc);
2033 }
2034
2035 PUB_FUNC void tcc_print_stats(TCCState *s1, unsigned total_time)
2036 {
2037 if (total_time < 1)
2038 total_time = 1;
2039 if (total_bytes < 1)
2040 total_bytes = 1;
2041 fprintf(stderr, "* %d idents, %d lines, %d bytes\n"
2042 "* %0.3f s, %u lines/s, %0.1f MB/s\n",
2043 total_idents, total_lines, total_bytes,
2044 (double)total_time/1000,
2045 (unsigned)total_lines*1000/total_time,
2046 (double)total_bytes/1000/total_time);
2047 fprintf(stderr, "* text %d, data.rw %d, data.ro %d, bss %d bytes\n",
2048 s1->total_output[0],
2049 s1->total_output[1],
2050 s1->total_output[2],
2051 s1->total_output[3]
2052 );
2053 #ifdef MEM_DEBUG
2054 fprintf(stderr, "* %d bytes memory used\n", mem_max_size);
2055 #endif
2056 }
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