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tcc.h: Extend search path for include, lib and crt.
[tinycc.git] / libtcc.c
blob1feb741032edaac0c45c20c47fbf33408ecf1028
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->init_symbol);
840 tcc_free(s1->fini_symbol);
841 tcc_free(s1->outfile);
842 tcc_free(s1->deps_outfile);
843 dynarray_reset(&s1->files, &s1->nb_files);
844 dynarray_reset(&s1->target_deps, &s1->nb_target_deps);
845 dynarray_reset(&s1->pragma_libs, &s1->nb_pragma_libs);
846 dynarray_reset(&s1->argv, &s1->argc);
847 cstr_free(&s1->cmdline_defs);
848 cstr_free(&s1->cmdline_incl);
849 #ifdef TCC_IS_NATIVE
850 /* free runtime memory */
851 tcc_run_free(s1);
852 #endif
853
854 tcc_free(s1);
855 #ifdef MEM_DEBUG
856 if (0 == --nb_states)
857 tcc_memcheck();
858 #endif
859 }
860
861 LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
862 {
863 s->output_type = output_type;
864
865 if (!s->nostdinc) {
866 /* default include paths */
867 /* -isystem paths have already been handled */
868 tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
869 }
870 #ifdef CONFIG_TCC_BCHECK
871 if (s->do_bounds_check) {
872 /* if bound checking, then add corresponding sections */
873 tccelf_bounds_new(s);
874 }
875 #endif
876 if (s->do_debug) {
877 /* add debug sections */
878 tccelf_stab_new(s);
879 }
880 if (output_type == TCC_OUTPUT_OBJ) {
881 /* always elf for objects */
882 s->output_format = TCC_OUTPUT_FORMAT_ELF;
883 return 0;
884 }
885
886 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
887
888 #ifdef TCC_TARGET_PE
889 # ifdef _WIN32
890 /* allow linking with system dll's directly */
891 tcc_add_systemdir(s);
892 # endif
893 /* target PE has its own startup code in libtcc1.a */
894 return 0;
895
896 #elif defined TCC_TARGET_MACHO
897 # ifdef TCC_IS_NATIVE
898 tcc_add_macos_sdkpath(s);
899 # endif
900 /* Mach-O with LC_MAIN doesn't need any crt startup code. */
901 return 0;
902
903 #else
904 /* paths for crt objects */
905 tcc_split_path(s, &s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX);
906 /* add libc crt1/crti objects */
907 if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) &&
908 !s->nostdlib) {
909 #if TARGETOS_OpenBSD
910 if (output_type != TCC_OUTPUT_DLL)
911 tcc_add_crt(s, "crt0.o");
912 if (output_type == TCC_OUTPUT_DLL)
913 tcc_add_crt(s, "crtbeginS.o");
914 else
915 tcc_add_crt(s, "crtbegin.o");
916 #elif TARGETOS_FreeBSD
917 if (output_type != TCC_OUTPUT_DLL)
918 tcc_add_crt(s, "crt1.o");
919 tcc_add_crt(s, "crti.o");
920 if (s->static_link)
921 tcc_add_crt(s, "crtbeginT.o");
922 else if (output_type == TCC_OUTPUT_DLL)
923 tcc_add_crt(s, "crtbeginS.o");
924 else
925 tcc_add_crt(s, "crtbegin.o");
926 #elif TARGETOS_NetBSD
927 if (output_type != TCC_OUTPUT_DLL)
928 tcc_add_crt(s, "crt0.o");
929 tcc_add_crt(s, "crti.o");
930 if (s->static_link)
931 tcc_add_crt(s, "crtbeginT.o");
932 else if (output_type == TCC_OUTPUT_DLL)
933 tcc_add_crt(s, "crtbeginS.o");
934 else
935 tcc_add_crt(s, "crtbegin.o");
936 #else
937 if (output_type != TCC_OUTPUT_DLL)
938 tcc_add_crt(s, "crt1.o");
939 tcc_add_crt(s, "crti.o");
940 #endif
941 }
942 return 0;
943 #endif
944 }
945
946 LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname)
947 {
948 tcc_split_path(s, &s->include_paths, &s->nb_include_paths, pathname);
949 return 0;
950 }
951
952 LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
953 {
954 tcc_split_path(s, &s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
955 return 0;
956 }
957
958 ST_FUNC DLLReference *tcc_add_dllref(TCCState *s1, const char *dllname)
959 {
960 DLLReference *ref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname));
961 strcpy(ref->name, dllname);
962 dynarray_add(&s1->loaded_dlls, &s1->nb_loaded_dlls, ref);
963 return ref;
964 }
965
966 /* OpenBSD: choose latest from libxxx.so.x.y versions */
967 #if defined TARGETOS_OpenBSD && !defined _WIN32
968 #include <glob.h>
969 static int tcc_glob_so(TCCState *s1, const char *pattern, char *buf, int size)
970 {
971 const char *star;
972 glob_t g;
973 char *p;
974 int i, v, v1, v2, v3;
975
976 star = strchr(pattern, '*');
977 if (!star || glob(pattern, 0, NULL, &g))
978 return -1;
979 for (v = -1, i = 0; i < g.gl_pathc; ++i) {
980 p = g.gl_pathv[i];
981 if (2 != sscanf(p + (star - pattern), "%d.%d.%d", &v1, &v2, &v3))
982 continue;
983 if ((v1 = v1 * 1000 + v2) > v)
984 v = v1, pstrcpy(buf, size, p);
985 }
986 globfree(&g);
987 return v;
988 }
989 #endif
990
991 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags)
992 {
993 int fd, ret = -1;
994
995 #if defined TARGETOS_OpenBSD && !defined _WIN32
996 char buf[1024];
997 if (tcc_glob_so(s1, filename, buf, sizeof buf) >= 0)
998 filename = buf;
999 #endif
1000
1001 /* open the file */
1002 fd = _tcc_open(s1, filename);
1003 if (fd < 0) {
1004 if (flags & AFF_PRINT_ERROR)
1005 tcc_error_noabort("file '%s' not found", filename);
1006 return ret;
1007 }
1008
1009 s1->current_filename = filename;
1010 if (flags & AFF_TYPE_BIN) {
1011 ElfW(Ehdr) ehdr;
1012 int obj_type;
1013
1014 obj_type = tcc_object_type(fd, &ehdr);
1015 lseek(fd, 0, SEEK_SET);
1016
1017 switch (obj_type) {
1018
1019 case AFF_BINTYPE_REL:
1020 ret = tcc_load_object_file(s1, fd, 0);
1021 break;
1022
1023 case AFF_BINTYPE_AR:
1024 ret = tcc_load_archive(s1, fd, !(flags & AFF_WHOLE_ARCHIVE));
1025 break;
1026
1027 #ifdef TCC_TARGET_PE
1028 default:
1029 ret = pe_load_file(s1, fd, filename);
1030 goto check_success;
1031
1032 #elif defined TCC_TARGET_MACHO
1033 case AFF_BINTYPE_DYN:
1034 case_dyn_or_tbd:
1035 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1036 #ifdef TCC_IS_NATIVE
1037 void* dl;
1038 const char* soname = filename;
1039 if (obj_type != AFF_BINTYPE_DYN)
1040 soname = macho_tbd_soname(filename);
1041 dl = dlopen(soname, RTLD_GLOBAL | RTLD_LAZY);
1042 if (dl)
1043 tcc_add_dllref(s1, soname)->handle = dl, ret = 0;
1044 if (filename != soname)
1045 tcc_free((void *)soname);
1046 #endif
1047 } else if (obj_type == AFF_BINTYPE_DYN) {
1048 ret = macho_load_dll(s1, fd, filename, (flags & AFF_REFERENCED_DLL) != 0);
1049 } else {
1050 ret = macho_load_tbd(s1, fd, filename, (flags & AFF_REFERENCED_DLL) != 0);
1051 }
1052 break;
1053 default:
1054 {
1055 const char *ext = tcc_fileextension(filename);
1056 if (!strcmp(ext, ".tbd"))
1057 goto case_dyn_or_tbd;
1058 if (!strcmp(ext, ".dylib")) {
1059 obj_type = AFF_BINTYPE_DYN;
1060 goto case_dyn_or_tbd;
1061 }
1062 goto check_success;
1063 }
1064
1065 #else /* unix */
1066 case AFF_BINTYPE_DYN:
1067 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1068 #ifdef TCC_IS_NATIVE
1069 void* dl = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
1070 if (dl)
1071 tcc_add_dllref(s1, filename)->handle = dl, ret = 0;
1072 #endif
1073 } else
1074 ret = tcc_load_dll(s1, fd, filename, (flags & AFF_REFERENCED_DLL) != 0);
1075 break;
1076
1077 default:
1078 /* as GNU ld, consider it is an ld script if not recognized */
1079 ret = tcc_load_ldscript(s1, fd);
1080 goto check_success;
1081
1082 #endif /* pe / macos / unix */
1083
1084 check_success:
1085 if (ret < 0)
1086 tcc_error_noabort("%s: unrecognized file type", filename);
1087 break;
1088
1089 #ifdef TCC_TARGET_COFF
1090 case AFF_BINTYPE_C67:
1091 ret = tcc_load_coff(s1, fd);
1092 break;
1093 #endif
1094 }
1095 close(fd);
1096 } else {
1097 /* update target deps */
1098 dynarray_add(&s1->target_deps, &s1->nb_target_deps, tcc_strdup(filename));
1099 ret = tcc_compile(s1, flags, filename, fd);
1100 }
1101 s1->current_filename = NULL;
1102 return ret;
1103 }
1104
1105 LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename)
1106 {
1107 int filetype = s->filetype;
1108 if (0 == (filetype & AFF_TYPE_MASK)) {
1109 /* use a file extension to detect a filetype */
1110 const char *ext = tcc_fileextension(filename);
1111 if (ext[0]) {
1112 ext++;
1113 if (!strcmp(ext, "S"))
1114 filetype = AFF_TYPE_ASMPP;
1115 else if (!strcmp(ext, "s"))
1116 filetype = AFF_TYPE_ASM;
1117 else if (!PATHCMP(ext, "c")
1118 || !PATHCMP(ext, "h")
1119 || !PATHCMP(ext, "i"))
1120 filetype = AFF_TYPE_C;
1121 else
1122 filetype |= AFF_TYPE_BIN;
1123 } else {
1124 filetype = AFF_TYPE_C;
1125 }
1126 }
1127 return tcc_add_file_internal(s, filename, filetype | AFF_PRINT_ERROR);
1128 }
1129
1130 LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
1131 {
1132 tcc_split_path(s, &s->library_paths, &s->nb_library_paths, pathname);
1133 return 0;
1134 }
1135
1136 static int tcc_add_library_internal(TCCState *s, const char *fmt,
1137 const char *filename, int flags, char **paths, int nb_paths)
1138 {
1139 char buf[1024];
1140 int i;
1141
1142 for(i = 0; i < nb_paths; i++) {
1143 snprintf(buf, sizeof(buf), fmt, paths[i], filename);
1144 if (tcc_add_file_internal(s, buf, flags | AFF_TYPE_BIN) == 0)
1145 return 0;
1146 }
1147 return -1;
1148 }
1149
1150 #ifndef TCC_TARGET_MACHO
1151 /* find and load a dll. Return non zero if not found */
1152 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
1153 {
1154 return tcc_add_library_internal(s, "%s/%s", filename, flags,
1155 s->library_paths, s->nb_library_paths);
1156 }
1157 #endif
1158
1159 #if !defined TCC_TARGET_PE && !defined TCC_TARGET_MACHO
1160 ST_FUNC int tcc_add_crt(TCCState *s1, const char *filename)
1161 {
1162 if (-1 == tcc_add_library_internal(s1, "%s/%s",
1163 filename, 0, s1->crt_paths, s1->nb_crt_paths))
1164 tcc_error_noabort("file '%s' not found", filename);
1165 return 0;
1166 }
1167 #endif
1168
1169 /* the library name is the same as the argument of the '-l' option */
1170 LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname)
1171 {
1172 #if defined TCC_TARGET_PE
1173 static const char * const libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL };
1174 const char * const *pp = s->static_link ? libs + 4 : libs;
1175 #elif defined TCC_TARGET_MACHO
1176 static const char * const libs[] = { "%s/lib%s.dylib", "%s/lib%s.tbd", "%s/lib%s.a", NULL };
1177 const char * const *pp = s->static_link ? libs + 2 : libs;
1178 #elif defined TARGETOS_OpenBSD
1179 static const char * const libs[] = { "%s/lib%s.so.*", "%s/lib%s.a", NULL };
1180 const char * const *pp = s->static_link ? libs + 1 : libs;
1181 #else
1182 static const char * const libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL };
1183 const char * const *pp = s->static_link ? libs + 1 : libs;
1184 #endif
1185 int flags = s->filetype & AFF_WHOLE_ARCHIVE;
1186 while (*pp) {
1187 if (0 == tcc_add_library_internal(s, *pp,
1188 libraryname, flags, s->library_paths, s->nb_library_paths))
1189 return 0;
1190 ++pp;
1191 }
1192 return -1;
1193 }
1194
1195 PUB_FUNC int tcc_add_library_err(TCCState *s1, const char *libname)
1196 {
1197 int ret = tcc_add_library(s1, libname);
1198 if (ret < 0)
1199 tcc_error_noabort("library '%s' not found", libname);
1200 return ret;
1201 }
1202
1203 /* handle #pragma comment(lib,) */
1204 ST_FUNC void tcc_add_pragma_libs(TCCState *s1)
1205 {
1206 int i;
1207 for (i = 0; i < s1->nb_pragma_libs; i++)
1208 tcc_add_library_err(s1, s1->pragma_libs[i]);
1209 }
1210
1211 LIBTCCAPI int tcc_add_symbol(TCCState *s1, const char *name, const void *val)
1212 {
1213 #ifdef TCC_TARGET_PE
1214 /* On x86_64 'val' might not be reachable with a 32bit offset.
1215 So it is handled here as if it were in a DLL. */
1216 pe_putimport(s1, 0, name, (uintptr_t)val);
1217 #else
1218 char buf[256];
1219 if (s1->leading_underscore) {
1220 buf[0] = '_';
1221 pstrcpy(buf + 1, sizeof(buf) - 1, name);
1222 name = buf;
1223 }
1224 set_global_sym(s1, name, NULL, (addr_t)(uintptr_t)val); /* NULL: SHN_ABS */
1225 #endif
1226 return 0;
1227 }
1228
1229 LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path)
1230 {
1231 tcc_free(s->tcc_lib_path);
1232 s->tcc_lib_path = tcc_strdup(path);
1233 }
1234
1235 /********************************************************/
1236 /* options parser */
1237
1238 static int strstart(const char *val, const char **str)
1239 {
1240 const char *p, *q;
1241 p = *str;
1242 q = val;
1243 while (*q) {
1244 if (*p != *q)
1245 return 0;
1246 p++;
1247 q++;
1248 }
1249 *str = p;
1250 return 1;
1251 }
1252
1253 /* Like strstart, but automatically takes into account that ld options can
1254 *
1255 * - start with double or single dash (e.g. '--soname' or '-soname')
1256 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1257 * or '-Wl,-soname=x.so')
1258 *
1259 * you provide `val` always in 'option[=]' form (no leading -)
1260 */
1261 static int link_option(const char *str, const char *val, const char **ptr)
1262 {
1263 const char *p, *q;
1264 int ret;
1265
1266 /* there should be 1 or 2 dashes */
1267 if (*str++ != '-')
1268 return 0;
1269 if (*str == '-')
1270 str++;
1271
1272 /* then str & val should match (potentially up to '=') */
1273 p = str;
1274 q = val;
1275
1276 ret = 1;
1277 if (q[0] == '?') {
1278 ++q;
1279 if (strstart("no-", &p))
1280 ret = -1;
1281 }
1282
1283 while (*q != '\0' && *q != '=') {
1284 if (*p != *q)
1285 return 0;
1286 p++;
1287 q++;
1288 }
1289
1290 /* '=' near eos means ',' or '=' is ok */
1291 if (*q == '=') {
1292 if (*p == 0)
1293 *ptr = p;
1294 if (*p != ',' && *p != '=')
1295 return 0;
1296 p++;
1297 } else if (*p) {
1298 return 0;
1299 }
1300 *ptr = p;
1301 return ret;
1302 }
1303
1304 static const char *skip_linker_arg(const char **str)
1305 {
1306 const char *s1 = *str;
1307 const char *s2 = strchr(s1, ',');
1308 *str = s2 ? s2++ : (s2 = s1 + strlen(s1));
1309 return s2;
1310 }
1311
1312 static void copy_linker_arg(char **pp, const char *s, int sep)
1313 {
1314 const char *q = s;
1315 char *p = *pp;
1316 int l = 0;
1317 if (p && sep)
1318 p[l = strlen(p)] = sep, ++l;
1319 skip_linker_arg(&q);
1320 pstrncpy(l + (*pp = tcc_realloc(p, q - s + l + 1)), s, q - s);
1321 }
1322
1323 /* set linker options */
1324 static int tcc_set_linker(TCCState *s, const char *option)
1325 {
1326 TCCState *s1 = s;
1327 while (*option) {
1328
1329 const char *p = NULL;
1330 char *end = NULL;
1331 int ignoring = 0;
1332 int ret;
1333
1334 if (link_option(option, "Bsymbolic", &p)) {
1335 s->symbolic = 1;
1336 } else if (link_option(option, "nostdlib", &p)) {
1337 s->nostdlib = 1;
1338 } else if (link_option(option, "e=", &p)) {
1339 copy_linker_arg(&s->elf_entryname, p, 0);
1340 } else if (link_option(option, "fini=", &p)) {
1341 copy_linker_arg(&s->fini_symbol, p, 0);
1342 ignoring = 1;
1343 } else if (link_option(option, "image-base=", &p)
1344 || link_option(option, "Ttext=", &p)) {
1345 s->text_addr = strtoull(p, &end, 16);
1346 s->has_text_addr = 1;
1347 } else if (link_option(option, "init=", &p)) {
1348 copy_linker_arg(&s->init_symbol, p, 0);
1349 ignoring = 1;
1350 } else if (link_option(option, "oformat=", &p)) {
1351 #if defined(TCC_TARGET_PE)
1352 if (strstart("pe-", &p)) {
1353 #elif PTR_SIZE == 8
1354 if (strstart("elf64-", &p)) {
1355 #else
1356 if (strstart("elf32-", &p)) {
1357 #endif
1358 s->output_format = TCC_OUTPUT_FORMAT_ELF;
1359 } else if (!strcmp(p, "binary")) {
1360 s->output_format = TCC_OUTPUT_FORMAT_BINARY;
1361 #ifdef TCC_TARGET_COFF
1362 } else if (!strcmp(p, "coff")) {
1363 s->output_format = TCC_OUTPUT_FORMAT_COFF;
1364 #endif
1365 } else
1366 goto err;
1367
1368 } else if (link_option(option, "as-needed", &p)) {
1369 ignoring = 1;
1370 } else if (link_option(option, "O", &p)) {
1371 ignoring = 1;
1372 } else if (link_option(option, "export-all-symbols", &p)) {
1373 s->rdynamic = 1;
1374 } else if (link_option(option, "export-dynamic", &p)) {
1375 s->rdynamic = 1;
1376 } else if (link_option(option, "rpath=", &p)) {
1377 copy_linker_arg(&s->rpath, p, ':');
1378 } else if (link_option(option, "enable-new-dtags", &p)) {
1379 s->enable_new_dtags = 1;
1380 } else if (link_option(option, "section-alignment=", &p)) {
1381 s->section_align = strtoul(p, &end, 16);
1382 } else if (link_option(option, "soname=", &p)) {
1383 copy_linker_arg(&s->soname, p, 0);
1384 #ifdef TCC_TARGET_PE
1385 } else if (link_option(option, "large-address-aware", &p)) {
1386 s->pe_characteristics |= 0x20;
1387 } else if (link_option(option, "file-alignment=", &p)) {
1388 s->pe_file_align = strtoul(p, &end, 16);
1389 } else if (link_option(option, "stack=", &p)) {
1390 s->pe_stack_size = strtoul(p, &end, 10);
1391 } else if (link_option(option, "subsystem=", &p)) {
1392 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1393 if (!strcmp(p, "native")) {
1394 s->pe_subsystem = 1;
1395 } else if (!strcmp(p, "console")) {
1396 s->pe_subsystem = 3;
1397 } else if (!strcmp(p, "gui") || !strcmp(p, "windows")) {
1398 s->pe_subsystem = 2;
1399 } else if (!strcmp(p, "posix")) {
1400 s->pe_subsystem = 7;
1401 } else if (!strcmp(p, "efiapp")) {
1402 s->pe_subsystem = 10;
1403 } else if (!strcmp(p, "efiboot")) {
1404 s->pe_subsystem = 11;
1405 } else if (!strcmp(p, "efiruntime")) {
1406 s->pe_subsystem = 12;
1407 } else if (!strcmp(p, "efirom")) {
1408 s->pe_subsystem = 13;
1409 #elif defined(TCC_TARGET_ARM)
1410 if (!strcmp(p, "wince")) {
1411 s->pe_subsystem = 9;
1412 #endif
1413 } else
1414 goto err;
1415 #endif
1416 } else if (ret = link_option(option, "?whole-archive", &p), ret) {
1417 if (ret > 0)
1418 s->filetype |= AFF_WHOLE_ARCHIVE;
1419 else
1420 s->filetype &= ~AFF_WHOLE_ARCHIVE;
1421 } else if (link_option(option, "z=", &p)) {
1422 ignoring = 1;
1423 } else if (p) {
1424 return 0;
1425 } else {
1426 err:
1427 tcc_error("unsupported linker option '%s'", option);
1428 }
1429 if (ignoring)
1430 tcc_warning_c(warn_unsupported)("unsupported linker option '%s'", option);
1431 option = skip_linker_arg(&p);
1432 }
1433 return 1;
1434 }
1435
1436 typedef struct TCCOption {
1437 const char *name;
1438 uint16_t index;
1439 uint16_t flags;
1440 } TCCOption;
1441
1442 enum {
1443 TCC_OPTION_ignored = 0,
1444 TCC_OPTION_HELP,
1445 TCC_OPTION_HELP2,
1446 TCC_OPTION_v,
1447 TCC_OPTION_I,
1448 TCC_OPTION_D,
1449 TCC_OPTION_U,
1450 TCC_OPTION_P,
1451 TCC_OPTION_L,
1452 TCC_OPTION_B,
1453 TCC_OPTION_l,
1454 TCC_OPTION_bench,
1455 TCC_OPTION_bt,
1456 TCC_OPTION_b,
1457 TCC_OPTION_ba,
1458 TCC_OPTION_g,
1459 TCC_OPTION_c,
1460 TCC_OPTION_dumpversion,
1461 TCC_OPTION_d,
1462 TCC_OPTION_static,
1463 TCC_OPTION_std,
1464 TCC_OPTION_shared,
1465 TCC_OPTION_soname,
1466 TCC_OPTION_o,
1467 TCC_OPTION_r,
1468 TCC_OPTION_Wl,
1469 TCC_OPTION_Wp,
1470 TCC_OPTION_W,
1471 TCC_OPTION_O,
1472 TCC_OPTION_mfloat_abi,
1473 TCC_OPTION_m,
1474 TCC_OPTION_f,
1475 TCC_OPTION_isystem,
1476 TCC_OPTION_iwithprefix,
1477 TCC_OPTION_include,
1478 TCC_OPTION_nostdinc,
1479 TCC_OPTION_nostdlib,
1480 TCC_OPTION_print_search_dirs,
1481 TCC_OPTION_rdynamic,
1482 TCC_OPTION_pthread,
1483 TCC_OPTION_run,
1484 TCC_OPTION_w,
1485 TCC_OPTION_E,
1486 TCC_OPTION_M,
1487 TCC_OPTION_MD,
1488 TCC_OPTION_MF,
1489 TCC_OPTION_MM,
1490 TCC_OPTION_MMD,
1491 TCC_OPTION_x,
1492 TCC_OPTION_ar,
1493 TCC_OPTION_impdef,
1494 };
1495
1496 #define TCC_OPTION_HAS_ARG 0x0001
1497 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1498
1499 static const TCCOption tcc_options[] = {
1500 { "h", TCC_OPTION_HELP, 0 },
1501 { "-help", TCC_OPTION_HELP, 0 },
1502 { "?", TCC_OPTION_HELP, 0 },
1503 { "hh", TCC_OPTION_HELP2, 0 },
1504 { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1505 { "-version", TCC_OPTION_v, 0 }, /* handle as verbose, also prints version*/
1506 { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG },
1507 { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG },
1508 { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG },
1509 { "P", TCC_OPTION_P, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1510 { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG },
1511 { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG },
1512 { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG },
1513 { "bench", TCC_OPTION_bench, 0 },
1514 #ifdef CONFIG_TCC_BACKTRACE
1515 { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1516 #endif
1517 #ifdef CONFIG_TCC_BCHECK
1518 { "b", TCC_OPTION_b, 0 },
1519 #endif
1520 { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1521 { "c", TCC_OPTION_c, 0 },
1522 { "dumpversion", TCC_OPTION_dumpversion, 0},
1523 { "d", TCC_OPTION_d, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1524 { "static", TCC_OPTION_static, 0 },
1525 { "std", TCC_OPTION_std, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1526 { "shared", TCC_OPTION_shared, 0 },
1527 { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG },
1528 { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG },
1529 { "pthread", TCC_OPTION_pthread, 0},
1530 { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1531 { "rdynamic", TCC_OPTION_rdynamic, 0 },
1532 { "r", TCC_OPTION_r, 0 },
1533 { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1534 { "Wp,", TCC_OPTION_Wp, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1535 { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1536 { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1537 #ifdef TCC_TARGET_ARM
1538 { "mfloat-abi", TCC_OPTION_mfloat_abi, TCC_OPTION_HAS_ARG },
1539 #endif
1540 { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1541 { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1542 { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
1543 { "include", TCC_OPTION_include, TCC_OPTION_HAS_ARG },
1544 { "nostdinc", TCC_OPTION_nostdinc, 0 },
1545 { "nostdlib", TCC_OPTION_nostdlib, 0 },
1546 { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 },
1547 { "w", TCC_OPTION_w, 0 },
1548 { "E", TCC_OPTION_E, 0},
1549 { "M", TCC_OPTION_M, 0},
1550 { "MD", TCC_OPTION_MD, 0},
1551 { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG },
1552 { "MM", TCC_OPTION_MM, 0},
1553 { "MMD", TCC_OPTION_MMD, 0},
1554 { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG },
1555 { "ar", TCC_OPTION_ar, 0},
1556 #ifdef TCC_TARGET_PE
1557 { "impdef", TCC_OPTION_impdef, 0},
1558 #endif
1559 /* ignored (silently, except after -Wunsupported) */
1560 { "arch", 0, TCC_OPTION_HAS_ARG},
1561 { "C", 0, 0 },
1562 { "-param", 0, TCC_OPTION_HAS_ARG },
1563 { "pedantic", 0, 0 },
1564 { "pipe", 0, 0 },
1565 { "s", 0, 0 },
1566 { "traditional", 0, 0 },
1567 { NULL, 0, 0 },
1568 };
1569
1570 typedef struct stdvalue {
1571 uint32_t cversion;
1572 const char * name;
1573 } stdvalue;
1574
1575 /* accepted values for the -std= option */
1576 static const stdvalue std_values[] = {
1577 { 199901, "c99" },
1578 { 201112, "c11" },
1579 { 201710, "c17" },
1580 { 202000, "c2x" },
1581 { 199901, "gnu99" },
1582 { 201112, "gnu11" },
1583 { 201710, "gnu17" },
1584 { 202000, "gnu2x" }
1585 };
1586
1587 typedef struct FlagDef {
1588 uint16_t offset;
1589 uint16_t flags;
1590 const char *name;
1591 } FlagDef;
1592
1593 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1594 #define FD_INVERT 0x0002 /* invert value before storing */
1595
1596 static const FlagDef options_W[] = {
1597 { offsetof(TCCState, warn_all), WD_ALL, "all" },
1598 { offsetof(TCCState, warn_error), 0, "error" },
1599 { offsetof(TCCState, warn_write_strings), 0, "write-strings" },
1600 { offsetof(TCCState, warn_unsupported), 0, "unsupported" },
1601 { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL, "implicit-function-declaration" },
1602 { offsetof(TCCState, warn_discarded_qualifiers), WD_ALL, "discarded-qualifiers" },
1603 { 0, 0, NULL }
1604 };
1605
1606 static const FlagDef options_f[] = {
1607 { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
1608 { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
1609 { offsetof(TCCState, nocommon), FD_INVERT, "common" },
1610 { offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
1611 { offsetof(TCCState, ms_extensions), 0, "ms-extensions" },
1612 { offsetof(TCCState, dollars_in_identifiers), 0, "dollars-in-identifiers" },
1613 { offsetof(TCCState, test_coverage), 0, "test-coverage" },
1614 { 0, 0, NULL }
1615 };
1616
1617 static const FlagDef options_m[] = {
1618 { offsetof(TCCState, ms_bitfields), 0, "ms-bitfields" },
1619 #ifdef TCC_TARGET_X86_64
1620 { offsetof(TCCState, nosse), FD_INVERT, "sse" },
1621 #endif
1622 { 0, 0, NULL }
1623 };
1624
1625 static int set_flag(TCCState *s, const FlagDef *flags, const char *name)
1626 {
1627 int value, mask, ret;
1628 const FlagDef *p;
1629 const char *r;
1630 unsigned char *f;
1631
1632 r = name, value = !strstart("no-", &r), mask = 0;
1633
1634 /* when called with options_W, look for -W[no-]error=<option> */
1635 if ((flags->flags & WD_ALL) && strstart("error=", &r))
1636 value = value ? WARN_ON|WARN_ERR : WARN_NOE, mask = WARN_ON;
1637
1638 for (ret = -1, p = flags; p->name; ++p) {
1639 if (ret) {
1640 if (strcmp(r, p->name))
1641 continue;
1642 } else {
1643 if (0 == (p->flags & WD_ALL))
1644 continue;
1645 }
1646
1647 f = (unsigned char *)s + p->offset;
1648 *f = (*f & mask) | (value ^ !!(p->flags & FD_INVERT));
1649
1650 if (ret) {
1651 ret = 0;
1652 if (strcmp(r, "all"))
1653 break;
1654 }
1655 }
1656 return ret;
1657 }
1658
1659 static void args_parser_add_file(TCCState *s, const char* filename, int filetype)
1660 {
1661 struct filespec *f = tcc_malloc(sizeof *f + strlen(filename));
1662 f->type = filetype;
1663 strcpy(f->name, filename);
1664 dynarray_add(&s->files, &s->nb_files, f);
1665 }
1666
1667 static int args_parser_make_argv(const char *r, int *argc, char ***argv)
1668 {
1669 int ret = 0, q, c;
1670 CString str;
1671 for(;;) {
1672 while (c = (unsigned char)*r, c && c <= ' ')
1673 ++r;
1674 if (c == 0)
1675 break;
1676 q = 0;
1677 cstr_new(&str);
1678 while (c = (unsigned char)*r, c) {
1679 ++r;
1680 if (c == '\\' && (*r == '"' || *r == '\\')) {
1681 c = *r++;
1682 } else if (c == '"') {
1683 q = !q;
1684 continue;
1685 } else if (q == 0 && c <= ' ') {
1686 break;
1687 }
1688 cstr_ccat(&str, c);
1689 }
1690 cstr_ccat(&str, 0);
1691 //printf("<%s>\n", str.data), fflush(stdout);
1692 dynarray_add(argv, argc, tcc_strdup(str.data));
1693 cstr_free(&str);
1694 ++ret;
1695 }
1696 return ret;
1697 }
1698
1699 /* read list file */
1700 static void args_parser_listfile(TCCState *s,
1701 const char *filename, int optind, int *pargc, char ***pargv)
1702 {
1703 TCCState *s1 = s;
1704 int fd, i;
1705 char *p;
1706 int argc = 0;
1707 char **argv = NULL;
1708
1709 fd = open(filename, O_RDONLY | O_BINARY);
1710 if (fd < 0)
1711 tcc_error("listfile '%s' not found", filename);
1712
1713 p = tcc_load_text(fd);
1714 for (i = 0; i < *pargc; ++i)
1715 if (i == optind)
1716 args_parser_make_argv(p, &argc, &argv);
1717 else
1718 dynarray_add(&argv, &argc, tcc_strdup((*pargv)[i]));
1719
1720 tcc_free(p);
1721 dynarray_reset(&s->argv, &s->argc);
1722 *pargc = s->argc = argc, *pargv = s->argv = argv;
1723 }
1724
1725 PUB_FUNC int tcc_parse_args(TCCState *s, int *pargc, char ***pargv, int optind)
1726 {
1727 TCCState *s1 = s;
1728 const TCCOption *popt;
1729 const char *optarg, *r;
1730 const char *run = NULL;
1731 int x;
1732 CString linker_arg; /* collect -Wl options */
1733 int tool = 0, arg_start = 0, noaction = optind;
1734 char **argv = *pargv;
1735 int argc = *pargc;
1736
1737 cstr_new(&linker_arg);
1738
1739 while (optind < argc) {
1740 r = argv[optind];
1741 if (r[0] == '@' && r[1] != '\0') {
1742 args_parser_listfile(s, r + 1, optind, &argc, &argv);
1743 continue;
1744 }
1745 optind++;
1746 if (tool) {
1747 if (r[0] == '-' && r[1] == 'v' && r[2] == 0)
1748 ++s->verbose;
1749 continue;
1750 }
1751 reparse:
1752 if (r[0] != '-' || r[1] == '\0') {
1753 if (r[0] != '@') /* allow "tcc file(s) -run @ args ..." */
1754 args_parser_add_file(s, r, s->filetype);
1755 if (run) {
1756 tcc_set_options(s, run);
1757 arg_start = optind - 1;
1758 break;
1759 }
1760 continue;
1761 }
1762
1763 /* find option in table */
1764 for(popt = tcc_options; ; ++popt) {
1765 const char *p1 = popt->name;
1766 const char *r1 = r + 1;
1767 if (p1 == NULL)
1768 tcc_error("invalid option -- '%s'", r);
1769 if (!strstart(p1, &r1))
1770 continue;
1771 optarg = r1;
1772 if (popt->flags & TCC_OPTION_HAS_ARG) {
1773 if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) {
1774 if (optind >= argc)
1775 arg_err:
1776 tcc_error("argument to '%s' is missing", r);
1777 optarg = argv[optind++];
1778 }
1779 } else if (*r1 != '\0')
1780 continue;
1781 break;
1782 }
1783
1784 switch(popt->index) {
1785 case TCC_OPTION_HELP:
1786 x = OPT_HELP;
1787 goto extra_action;
1788 case TCC_OPTION_HELP2:
1789 x = OPT_HELP2;
1790 goto extra_action;
1791 case TCC_OPTION_I:
1792 tcc_add_include_path(s, optarg);
1793 break;
1794 case TCC_OPTION_D:
1795 tcc_define_symbol(s, optarg, NULL);
1796 break;
1797 case TCC_OPTION_U:
1798 tcc_undefine_symbol(s, optarg);
1799 break;
1800 case TCC_OPTION_L:
1801 tcc_add_library_path(s, optarg);
1802 break;
1803 case TCC_OPTION_B:
1804 /* set tcc utilities path (mainly for tcc development) */
1805 tcc_set_lib_path(s, optarg);
1806 break;
1807 case TCC_OPTION_l:
1808 args_parser_add_file(s, optarg, AFF_TYPE_LIB | (s->filetype & ~AFF_TYPE_MASK));
1809 s->nb_libraries++;
1810 break;
1811 case TCC_OPTION_pthread:
1812 s->option_pthread = 1;
1813 break;
1814 case TCC_OPTION_bench:
1815 s->do_bench = 1;
1816 break;
1817 #ifdef CONFIG_TCC_BACKTRACE
1818 case TCC_OPTION_bt:
1819 s->rt_num_callers = atoi(optarg);
1820 s->do_backtrace = 1;
1821 s->do_debug = 1;
1822 break;
1823 #endif
1824 #ifdef CONFIG_TCC_BCHECK
1825 case TCC_OPTION_b:
1826 s->do_bounds_check = 1;
1827 s->do_backtrace = 1;
1828 s->do_debug = 1;
1829 break;
1830 #endif
1831 case TCC_OPTION_g:
1832 /* Use "-g" as alias for "-g1". Use "-g0" to disable debug */
1833 /* Other common used values: "-g0", "-g1", "-g2" and "-g3" */
1834 /* no failure with unsupported options */
1835 if (isnum(*optarg))
1836 s->do_debug = atoi(optarg);
1837 else
1838 s->do_debug = 1;
1839 break;
1840 case TCC_OPTION_c:
1841 x = TCC_OUTPUT_OBJ;
1842 set_output_type:
1843 if (s->output_type)
1844 tcc_warning("-%s: overriding compiler action already specified", popt->name);
1845 s->output_type = x;
1846 break;
1847 case TCC_OPTION_d:
1848 if (*optarg == 'D')
1849 s->dflag = 3;
1850 else if (*optarg == 'M')
1851 s->dflag = 7;
1852 else if (*optarg == 't')
1853 s->dflag = 16;
1854 else if (isnum(*optarg))
1855 s->g_debug |= atoi(optarg);
1856 else
1857 goto unsupported_option;
1858 break;
1859 case TCC_OPTION_static:
1860 s->static_link = 1;
1861 break;
1862 case TCC_OPTION_std:
1863 x = 0;
1864 if (*optarg == '=') {
1865 do {
1866 if (strcmp(std_values[x].name, &optarg[1]) == 0) {
1867 x = std_values[x].cversion;
1868 }
1869 else
1870 ++x;
1871 } while (x < (sizeof(std_values)/sizeof(stdvalue)));
1872 }
1873 if (x > (sizeof(std_values)/sizeof(stdvalue)))
1874 s->cversion = x;
1875 else
1876 goto unsupported_option;
1877
1878 break;
1879 case TCC_OPTION_shared:
1880 x = TCC_OUTPUT_DLL;
1881 goto set_output_type;
1882 case TCC_OPTION_soname:
1883 s->soname = tcc_strdup(optarg);
1884 break;
1885 case TCC_OPTION_o:
1886 if (s->outfile) {
1887 tcc_warning("multiple -o option");
1888 tcc_free(s->outfile);
1889 }
1890 s->outfile = tcc_strdup(optarg);
1891 break;
1892 case TCC_OPTION_r:
1893 /* generate a .o merging several output files */
1894 s->option_r = 1;
1895 x = TCC_OUTPUT_OBJ;
1896 goto set_output_type;
1897 case TCC_OPTION_isystem:
1898 tcc_add_sysinclude_path(s, optarg);
1899 break;
1900 case TCC_OPTION_include:
1901 cstr_printf(&s->cmdline_incl, "#include \"%s\"\n", optarg);
1902 break;
1903 case TCC_OPTION_nostdinc:
1904 s->nostdinc = 1;
1905 break;
1906 case TCC_OPTION_nostdlib:
1907 s->nostdlib = 1;
1908 break;
1909 case TCC_OPTION_run:
1910 #ifndef TCC_IS_NATIVE
1911 tcc_error("-run is not available in a cross compiler");
1912 #endif
1913 run = optarg;
1914 x = TCC_OUTPUT_MEMORY;
1915 goto set_output_type;
1916 case TCC_OPTION_v:
1917 do ++s->verbose; while (*optarg++ == 'v');
1918 ++noaction;
1919 break;
1920 case TCC_OPTION_f:
1921 if (set_flag(s, options_f, optarg) < 0)
1922 goto unsupported_option;
1923 break;
1924 #ifdef TCC_TARGET_ARM
1925 case TCC_OPTION_mfloat_abi:
1926 /* tcc doesn't support soft float yet */
1927 if (!strcmp(optarg, "softfp")) {
1928 s->float_abi = ARM_SOFTFP_FLOAT;
1929 } else if (!strcmp(optarg, "hard"))
1930 s->float_abi = ARM_HARD_FLOAT;
1931 else
1932 tcc_error("unsupported float abi '%s'", optarg);
1933 break;
1934 #endif
1935 case TCC_OPTION_m:
1936 if (set_flag(s, options_m, optarg) < 0) {
1937 if (x = atoi(optarg), x != 32 && x != 64)
1938 goto unsupported_option;
1939 if (PTR_SIZE != x/8)
1940 return x;
1941 ++noaction;
1942 }
1943 break;
1944 case TCC_OPTION_W:
1945 s->warn_none = 0;
1946 if (optarg[0] && set_flag(s, options_W, optarg) < 0)
1947 goto unsupported_option;
1948 break;
1949 case TCC_OPTION_w:
1950 s->warn_none = 1;
1951 break;
1952 case TCC_OPTION_rdynamic:
1953 s->rdynamic = 1;
1954 break;
1955 case TCC_OPTION_Wl:
1956 if (linker_arg.size)
1957 --linker_arg.size, cstr_ccat(&linker_arg, ',');
1958 cstr_cat(&linker_arg, optarg, 0);
1959 if (tcc_set_linker(s, linker_arg.data))
1960 cstr_free(&linker_arg);
1961 break;
1962 case TCC_OPTION_Wp:
1963 r = optarg;
1964 goto reparse;
1965 case TCC_OPTION_E:
1966 x = TCC_OUTPUT_PREPROCESS;
1967 goto set_output_type;
1968 case TCC_OPTION_P:
1969 s->Pflag = atoi(optarg) + 1;
1970 break;
1971 case TCC_OPTION_M:
1972 s->include_sys_deps = 1;
1973 // fall through
1974 case TCC_OPTION_MM:
1975 s->just_deps = 1;
1976 if(!s->deps_outfile)
1977 s->deps_outfile = tcc_strdup("-");
1978 // fall through
1979 case TCC_OPTION_MMD:
1980 s->gen_deps = 1;
1981 break;
1982 case TCC_OPTION_MD:
1983 s->gen_deps = 1;
1984 s->include_sys_deps = 1;
1985 break;
1986 case TCC_OPTION_MF:
1987 s->deps_outfile = tcc_strdup(optarg);
1988 break;
1989 case TCC_OPTION_dumpversion:
1990 printf ("%s\n", TCC_VERSION);
1991 exit(0);
1992 break;
1993 case TCC_OPTION_x:
1994 x = 0;
1995 if (*optarg == 'c')
1996 x = AFF_TYPE_C;
1997 else if (*optarg == 'a')
1998 x = AFF_TYPE_ASMPP;
1999 else if (*optarg == 'b')
2000 x = AFF_TYPE_BIN;
2001 else if (*optarg == 'n')
2002 x = AFF_TYPE_NONE;
2003 else
2004 tcc_warning("unsupported language '%s'", optarg);
2005 s->filetype = x | (s->filetype & ~AFF_TYPE_MASK);
2006 break;
2007 case TCC_OPTION_O:
2008 /* Use "-O" as alias for "-O1". */
2009 /* Other common used values: "-O0", "-O1", "-O2", "-O3" and "-Os" */
2010 /* no failure with unsupported options */
2011 x = *optarg;
2012 s->optimize = isnum(x) ? atoi(optarg) : (x) ? x : 1;
2013 break;
2014 case TCC_OPTION_print_search_dirs:
2015 x = OPT_PRINT_DIRS;
2016 goto extra_action;
2017 case TCC_OPTION_impdef:
2018 x = OPT_IMPDEF;
2019 goto extra_action;
2020 case TCC_OPTION_ar:
2021 x = OPT_AR;
2022 extra_action:
2023 arg_start = optind - 1;
2024 if (arg_start != noaction)
2025 tcc_error("cannot parse %s here", r);
2026 tool = x;
2027 break;
2028 default:
2029 unsupported_option:
2030 tcc_warning_c(warn_unsupported)("unsupported option '%s'", r);
2031 break;
2032 }
2033 }
2034 if (linker_arg.size) {
2035 r = linker_arg.data;
2036 goto arg_err;
2037 }
2038 *pargc = argc - arg_start;
2039 *pargv = argv + arg_start;
2040 if (tool)
2041 return tool;
2042 if (optind != noaction)
2043 return 0;
2044 if (s->verbose == 2)
2045 return OPT_PRINT_DIRS;
2046 if (s->verbose)
2047 return OPT_V;
2048 return OPT_HELP;
2049 }
2050
2051 LIBTCCAPI void tcc_set_options(TCCState *s, const char *r)
2052 {
2053 char **argv = NULL;
2054 int argc = 0;
2055 args_parser_make_argv(r, &argc, &argv);
2056 tcc_parse_args(s, &argc, &argv, 0);
2057 dynarray_reset(&argv, &argc);
2058 }
2059
2060 PUB_FUNC void tcc_print_stats(TCCState *s1, unsigned total_time)
2061 {
2062 if (total_time < 1)
2063 total_time = 1;
2064 if (total_bytes < 1)
2065 total_bytes = 1;
2066 fprintf(stderr, "* %d idents, %d lines, %d bytes\n"
2067 "* %0.3f s, %u lines/s, %0.1f MB/s\n",
2068 total_idents, total_lines, total_bytes,
2069 (double)total_time/1000,
2070 (unsigned)total_lines*1000/total_time,
2071 (double)total_bytes/1000/total_time);
2072 fprintf(stderr, "* text %d, data.rw %d, data.ro %d, bss %d bytes\n",
2073 s1->total_output[0],
2074 s1->total_output[1],
2075 s1->total_output[2],
2076 s1->total_output[3]
2077 );
2078 #ifdef MEM_DEBUG
2079 fprintf(stderr, "* %d bytes memory used\n", mem_max_size);
2080 #endif
2081 }
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