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 "tccelf.c"
25#include "tccrun.c"
26#ifdef TCC_TARGET_I386
27#include "i386-gen.c"
28#include "i386-link.c"
29#include "i386-asm.c"
30#elif defined(TCC_TARGET_ARM)
31#include "arm-gen.c"
32#include "arm-link.c"
33#include "arm-asm.c"
34#elif defined(TCC_TARGET_ARM64)
35#include "arm64-gen.c"
36#include "arm64-link.c"
37#include "arm-asm.c"
38#elif defined(TCC_TARGET_C67)
39#include "c67-gen.c"
40#include "c67-link.c"
41#include "tcccoff.c"
42#elif defined(TCC_TARGET_X86_64)
43#include "x86_64-gen.c"
44#include "x86_64-link.c"
45#include "i386-asm.c"
46#elif defined(TCC_TARGET_RISCV64)
47#include "riscv64-gen.c"
48#include "riscv64-link.c"
49#include "riscv64-asm.c"
50#else
51#error unknown target
52#endif
53#ifdef CONFIG_TCC_ASM
54#include "tccasm.c"
55#endif
56#ifdef TCC_TARGET_PE
57#include "tccpe.c"
58#endif
59#ifdef TCC_TARGET_MACHO
60#include "tccmacho.c"
61#endif
62#endif /* ONE_SOURCE */
63
64#include "tcc.h"
65
66/********************************************************/
67/* global variables */
68
69/* XXX: get rid of this ASAP (or maybe not) */
70ST_DATA struct TCCState *tcc_state;
71
72#ifdef MEM_DEBUG
73static int nb_states;
74#endif
75
76/********************************************************/
77#ifdef _WIN32
78ST_FUNC char *normalize_slashes(char *path)
79{
80 char *p;
81 for (p = path; *p; ++p)
82 if (*p == '\\')
83 *p = '/';
84 return path;
85}
86
87static HMODULE tcc_module;
88
89/* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
90static void tcc_set_lib_path_w32(TCCState *s)
91{
92 char path[1024], *p;
93 GetModuleFileNameA(tcc_module, path, sizeof path);
94 p = tcc_basename(normalize_slashes(strlwr(path)));
95 if (p > path)
96 --p;
97 *p = 0;
98 tcc_set_lib_path(s, path);
99}
100
101#ifdef TCC_TARGET_PE
102static void tcc_add_systemdir(TCCState *s)
103{
104 char buf[1000];
105 GetSystemDirectory(buf, sizeof buf);
106 tcc_add_library_path(s, normalize_slashes(buf));
107}
108#endif
109
110#ifdef LIBTCC_AS_DLL
111BOOL WINAPI DllMain (HINSTANCE hDll, DWORD dwReason, LPVOID lpReserved)
112{
113 if (DLL_PROCESS_ATTACH == dwReason)
114 tcc_module = hDll;
115 return TRUE;
116}
117#endif
118#endif
119
120/********************************************************/
121#ifndef CONFIG_TCC_SEMLOCK
122#define WAIT_SEM()
123#define POST_SEM()
124#elif defined _WIN32
125static int tcc_sem_init;
126static CRITICAL_SECTION tcc_cr;
127static void wait_sem(void)
128{
129 if (!tcc_sem_init)
130 InitializeCriticalSection(&tcc_cr), tcc_sem_init = 1;
131 EnterCriticalSection(&tcc_cr);
132}
133#define WAIT_SEM() wait_sem()
134#define POST_SEM() LeaveCriticalSection(&tcc_cr);
135#elif defined __APPLE__
136/* Half-compatible MacOS doesn't have non-shared (process local)
137 semaphores. Use the dispatch framework for lightweight locks. */
138#include <dispatch/dispatch.h>
139static int tcc_sem_init;
140static dispatch_semaphore_t tcc_sem;
141static void wait_sem(void)
142{
143 if (!tcc_sem_init)
144 tcc_sem = dispatch_semaphore_create(1), tcc_sem_init = 1;
145 dispatch_semaphore_wait(tcc_sem, DISPATCH_TIME_FOREVER);
146}
147#define WAIT_SEM() wait_sem()
148#define POST_SEM() dispatch_semaphore_signal(tcc_sem)
149#else
150#include <semaphore.h>
151static int tcc_sem_init;
152static sem_t tcc_sem;
153static void wait_sem(void)
154{
155 if (!tcc_sem_init)
156 sem_init(&tcc_sem, 0, 1), tcc_sem_init = 1;
157 while (sem_wait (&tcc_sem) < 0 && errno == EINTR);
158}
159#define WAIT_SEM() wait_sem()
160#define POST_SEM() sem_post(&tcc_sem)
161#endif
162
163/********************************************************/
164/* copy a string and truncate it. */
165ST_FUNC char *pstrcpy(char *buf, size_t buf_size, const char *s)
166{
167 char *q, *q_end;
168 int c;
169
170 if (buf_size > 0) {
171 q = buf;
172 q_end = buf + buf_size - 1;
173 while (q < q_end) {
174 c = *s++;
175 if (c == '\0')
176 break;
177 *q++ = c;
178 }
179 *q = '\0';
180 }
181 return buf;
182}
183
184/* strcat and truncate. */
185ST_FUNC char *pstrcat(char *buf, size_t buf_size, const char *s)
186{
187 size_t len;
188 len = strlen(buf);
189 if (len < buf_size)
190 pstrcpy(buf + len, buf_size - len, s);
191 return buf;
192}
193
194ST_FUNC char *pstrncpy(char *out, const char *in, size_t num)
195{
196 memcpy(out, in, num);
197 out[num] = '\0';
198 return out;
199}
200
201/* extract the basename of a file */
202PUB_FUNC char *tcc_basename(const char *name)
203{
204 char *p = strchr(name, 0);
205 while (p > name && !IS_DIRSEP(p[-1]))
206 --p;
207 return p;
208}
209
210/* extract extension part of a file
211 *
212 * (if no extension, return pointer to end-of-string)
213 */
214PUB_FUNC char *tcc_fileextension (const char *name)
215{
216 char *b = tcc_basename(name);
217 char *e = strrchr(b, '.');
218 return e ? e : strchr(b, 0);
219}
220
221/********************************************************/
222/* memory management */
223
224#ifndef MEM_DEBUG
225
226PUB_FUNC void tcc_free(void *ptr)
227{
228 free(ptr);
229}
230
231PUB_FUNC void *tcc_malloc(unsigned long size)
232{
233 void *ptr;
234 ptr = malloc(size);
235 if (!ptr && size)
236 _tcc_error("memory full (malloc)");
237 return ptr;
238}
239
240PUB_FUNC void *tcc_mallocz(unsigned long size)
241{
242 void *ptr;
243 ptr = tcc_malloc(size);
244 if (size)
245 memset(ptr, 0, size);
246 return ptr;
247}
248
249PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size)
250{
251 void *ptr1;
252 ptr1 = realloc(ptr, size);
253 if (!ptr1 && size)
254 _tcc_error("memory full (realloc)");
255 return ptr1;
256}
257
258PUB_FUNC char *tcc_strdup(const char *str)
259{
260 char *ptr;
261 ptr = tcc_malloc(strlen(str) + 1);
262 strcpy(ptr, str);
263 return ptr;
264}
265
266#else
267
268#define MEM_DEBUG_MAGIC1 0xFEEDDEB1
269#define MEM_DEBUG_MAGIC2 0xFEEDDEB2
270#define MEM_DEBUG_MAGIC3 0xFEEDDEB3
271#define MEM_DEBUG_FILE_LEN 40
272#define MEM_DEBUG_CHECK3(header) \
273 ((mem_debug_header_t*)((char*)header + header->size))->magic3
274#define MEM_USER_PTR(header) \
275 ((char *)header + offsetof(mem_debug_header_t, magic3))
276#define MEM_HEADER_PTR(ptr) \
277 (mem_debug_header_t *)((char*)ptr - offsetof(mem_debug_header_t, magic3))
278
279struct mem_debug_header {
280 unsigned magic1;
281 unsigned size;
282 struct mem_debug_header *prev;
283 struct mem_debug_header *next;
284 int line_num;
285 char file_name[MEM_DEBUG_FILE_LEN + 1];
286 unsigned magic2;
287 ALIGNED(16) unsigned magic3;
288};
289
290typedef struct mem_debug_header mem_debug_header_t;
291
292static mem_debug_header_t *mem_debug_chain;
293static unsigned mem_cur_size;
294static unsigned mem_max_size;
295
296static mem_debug_header_t *malloc_check(void *ptr, const char *msg)
297{
298 mem_debug_header_t * header = MEM_HEADER_PTR(ptr);
299 if (header->magic1 != MEM_DEBUG_MAGIC1 ||
300 header->magic2 != MEM_DEBUG_MAGIC2 ||
301 MEM_DEBUG_CHECK3(header) != MEM_DEBUG_MAGIC3 ||
302 header->size == (unsigned)-1) {
303 fprintf(stderr, "%s check failed\n", msg);
304 if (header->magic1 == MEM_DEBUG_MAGIC1)
305 fprintf(stderr, "%s:%u: block allocated here.\n",
306 header->file_name, header->line_num);
307 exit(1);
308 }
309 return header;
310}
311
312PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line)
313{
314 int ofs;
315 mem_debug_header_t *header;
316
317 header = malloc(sizeof(mem_debug_header_t) + size);
318 if (!header)
319 _tcc_error("memory full (malloc)");
320
321 header->magic1 = MEM_DEBUG_MAGIC1;
322 header->magic2 = MEM_DEBUG_MAGIC2;
323 header->size = size;
324 MEM_DEBUG_CHECK3(header) = MEM_DEBUG_MAGIC3;
325 header->line_num = line;
326 ofs = strlen(file) - MEM_DEBUG_FILE_LEN;
327 strncpy(header->file_name, file + (ofs > 0 ? ofs : 0), MEM_DEBUG_FILE_LEN);
328 header->file_name[MEM_DEBUG_FILE_LEN] = 0;
329
330 header->next = mem_debug_chain;
331 header->prev = NULL;
332 if (header->next)
333 header->next->prev = header;
334 mem_debug_chain = header;
335
336 mem_cur_size += size;
337 if (mem_cur_size > mem_max_size)
338 mem_max_size = mem_cur_size;
339
340 return MEM_USER_PTR(header);
341}
342
343PUB_FUNC void tcc_free_debug(void *ptr)
344{
345 mem_debug_header_t *header;
346 if (!ptr)
347 return;
348 header = malloc_check(ptr, "tcc_free");
349 mem_cur_size -= header->size;
350 header->size = (unsigned)-1;
351 if (header->next)
352 header->next->prev = header->prev;
353 if (header->prev)
354 header->prev->next = header->next;
355 if (header == mem_debug_chain)
356 mem_debug_chain = header->next;
357 free(header);
358}
359
360PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line)
361{
362 void *ptr;
363 ptr = tcc_malloc_debug(size,file,line);
364 memset(ptr, 0, size);
365 return ptr;
366}
367
368PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line)
369{
370 mem_debug_header_t *header;
371 int mem_debug_chain_update = 0;
372 if (!ptr)
373 return tcc_malloc_debug(size, file, line);
374 header = malloc_check(ptr, "tcc_realloc");
375 mem_cur_size -= header->size;
376 mem_debug_chain_update = (header == mem_debug_chain);
377 header = realloc(header, sizeof(mem_debug_header_t) + size);
378 if (!header)
379 _tcc_error("memory full (realloc)");
380 header->size = size;
381 MEM_DEBUG_CHECK3(header) = MEM_DEBUG_MAGIC3;
382 if (header->next)
383 header->next->prev = header;
384 if (header->prev)
385 header->prev->next = header;
386 if (mem_debug_chain_update)
387 mem_debug_chain = header;
388 mem_cur_size += size;
389 if (mem_cur_size > mem_max_size)
390 mem_max_size = mem_cur_size;
391 return MEM_USER_PTR(header);
392}
393
394PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line)
395{
396 char *ptr;
397 ptr = tcc_malloc_debug(strlen(str) + 1, file, line);
398 strcpy(ptr, str);
399 return ptr;
400}
401
402PUB_FUNC void tcc_memcheck(void)
403{
404 if (mem_cur_size) {
405 mem_debug_header_t *header = mem_debug_chain;
406 fprintf(stderr, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n",
407 mem_cur_size, mem_max_size);
408 while (header) {
409 fprintf(stderr, "%s:%u: error: %u bytes leaked\n",
410 header->file_name, header->line_num, header->size);
411 header = header->next;
412 }
413#if MEM_DEBUG-0 == 2
414 exit(2);
415#endif
416 }
417}
418#endif /* MEM_DEBUG */
419
420/********************************************************/
421/* dynarrays */
422
423ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data)
424{
425 int nb, nb_alloc;
426 void **pp;
427
428 nb = *nb_ptr;
429 pp = *(void ***)ptab;
430 /* every power of two we double array size */
431 if ((nb & (nb - 1)) == 0) {
432 if (!nb)
433 nb_alloc = 1;
434 else
435 nb_alloc = nb * 2;
436 pp = tcc_realloc(pp, nb_alloc * sizeof(void *));
437 *(void***)ptab = pp;
438 }
439 pp[nb++] = data;
440 *nb_ptr = nb;
441}
442
443ST_FUNC void dynarray_reset(void *pp, int *n)
444{
445 void **p;
446 for (p = *(void***)pp; *n; ++p, --*n)
447 if (*p)
448 tcc_free(*p);
449 tcc_free(*(void**)pp);
450 *(void**)pp = NULL;
451}
452
453static void tcc_split_path(TCCState *s, void *p_ary, int *p_nb_ary, const char *in)
454{
455 const char *p;
456 do {
457 int c;
458 CString str;
459
460 cstr_new(&str);
461 for (p = in; c = *p, c != '\0' && c != PATHSEP[0]; ++p) {
462 if (c == '{' && p[1] && p[2] == '}') {
463 c = p[1], p += 2;
464 if (c == 'B')
465 cstr_cat(&str, s->tcc_lib_path, -1);
466 if (c == 'f' && file) {
467 /* substitute current file's dir */
468 const char *f = file->true_filename;
469 const char *b = tcc_basename(f);
470 if (b > f)
471 cstr_cat(&str, f, b - f - 1);
472 else
473 cstr_cat(&str, ".", 1);
474 }
475 } else {
476 cstr_ccat(&str, c);
477 }
478 }
479 if (str.size) {
480 cstr_ccat(&str, '\0');
481 dynarray_add(p_ary, p_nb_ary, tcc_strdup(str.data));
482 }
483 cstr_free(&str);
484 in = p+1;
485 } while (*p);
486}
487
488/********************************************************/
489
490static void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap)
491{
492 int len;
493 len = strlen(buf);
494 vsnprintf(buf + len, buf_size - len, fmt, ap);
495}
496
497static void strcat_printf(char *buf, int buf_size, const char *fmt, ...)
498{
499 va_list ap;
500 va_start(ap, fmt);
501 strcat_vprintf(buf, buf_size, fmt, ap);
502 va_end(ap);
503}
504
505#define ERROR_WARN 0
506#define ERROR_NOABORT 1
507#define ERROR_ERROR 2
508
509PUB_FUNC void tcc_enter_state(TCCState *s1)
510{
511 WAIT_SEM();
512 tcc_state = s1;
513}
514
515PUB_FUNC void tcc_exit_state(void)
516{
517 tcc_state = NULL;
518 POST_SEM();
519}
520
521static void error1(int mode, const char *fmt, va_list ap)
522{
523 char buf[2048];
524 BufferedFile **pf, *f;
525 TCCState *s1 = tcc_state;
526
527 buf[0] = '\0';
528 if (s1 == NULL)
529 /* can happen only if called from tcc_malloc(): 'out of memory' */
530 goto no_file;
531
532 if (s1 && !s1->error_set_jmp_enabled)
533 /* tcc_state just was set by tcc_enter_state() */
534 tcc_exit_state();
535
536 if (mode == ERROR_WARN) {
537 if (s1->warn_none)
538 return;
539 if (s1->warn_error)
540 mode = ERROR_ERROR;
541 }
542
543 f = NULL;
544 if (s1->error_set_jmp_enabled) { /* we're called while parsing a file */
545 /* use upper file if inline ":asm:" or token ":paste:" */
546 for (f = file; f && f->filename[0] == ':'; f = f->prev)
547 ;
548 }
549 if (f) {
550 for(pf = s1->include_stack; pf < s1->include_stack_ptr; pf++)
551 strcat_printf(buf, sizeof(buf), "In file included from %s:%d:\n",
552 (*pf)->filename, (*pf)->line_num);
553 strcat_printf(buf, sizeof(buf), "%s:%d: ",
554 f->filename, f->line_num - !!(tok_flags & TOK_FLAG_BOL));
555 } else if (s1->current_filename) {
556 strcat_printf(buf, sizeof(buf), "%s: ", s1->current_filename);
557 }
558
559no_file:
560 if (0 == buf[0])
561 strcat_printf(buf, sizeof(buf), "tcc: ");
562 if (mode == ERROR_WARN)
563 strcat_printf(buf, sizeof(buf), "warning: ");
564 else
565 strcat_printf(buf, sizeof(buf), "error: ");
566 strcat_vprintf(buf, sizeof(buf), fmt, ap);
567 if (!s1 || !s1->error_func) {
568 /* default case: stderr */
569 if (s1 && s1->output_type == TCC_OUTPUT_PREPROCESS && s1->ppfp == stdout)
570 /* print a newline during tcc -E */
571 printf("\n"), fflush(stdout);
572 fflush(stdout); /* flush -v output */
573 fprintf(stderr, "%s\n", buf);
574 fflush(stderr); /* print error/warning now (win32) */
575 } else {
576 s1->error_func(s1->error_opaque, buf);
577 }
578 if (s1) {
579 if (mode != ERROR_WARN)
580 s1->nb_errors++;
581 if (mode != ERROR_ERROR)
582 return;
583 if (s1->error_set_jmp_enabled)
584 longjmp(s1->error_jmp_buf, 1);
585 }
586 exit(1);
587}
588
589LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque, TCCErrorFunc error_func)
590{
591 s->error_opaque = error_opaque;
592 s->error_func = error_func;
593}
594
595LIBTCCAPI TCCErrorFunc tcc_get_error_func(TCCState *s)
596{
597 return s->error_func;
598}
599
600LIBTCCAPI void *tcc_get_error_opaque(TCCState *s)
601{
602 return s->error_opaque;
603}
604
605/* error without aborting current compilation */
606PUB_FUNC void _tcc_error_noabort(const char *fmt, ...)
607{
608 va_list ap;
609 va_start(ap, fmt);
610 error1(ERROR_NOABORT, fmt, ap);
611 va_end(ap);
612}
613
614PUB_FUNC void _tcc_error(const char *fmt, ...)
615{
616 va_list ap;
617 va_start(ap, fmt);
618 for (;;) error1(ERROR_ERROR, fmt, ap);
619}
620
621PUB_FUNC void _tcc_warning(const char *fmt, ...)
622{
623 va_list ap;
624 va_start(ap, fmt);
625 error1(ERROR_WARN, fmt, ap);
626 va_end(ap);
627}
628
629/********************************************************/
630/* I/O layer */
631
632ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen)
633{
634 BufferedFile *bf;
635 int buflen = initlen ? initlen : IO_BUF_SIZE;
636
637 bf = tcc_mallocz(sizeof(BufferedFile) + buflen);
638 bf->buf_ptr = bf->buffer;
639 bf->buf_end = bf->buffer + initlen;
640 bf->buf_end[0] = CH_EOB; /* put eob symbol */
641 pstrcpy(bf->filename, sizeof(bf->filename), filename);
642#ifdef _WIN32
643 normalize_slashes(bf->filename);
644#endif
645 bf->true_filename = bf->filename;
646 bf->line_num = 1;
647 bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
648 bf->fd = -1;
649 bf->prev = file;
650 file = bf;
651 tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
652}
653
654ST_FUNC void tcc_close(void)
655{
656 TCCState *s1 = tcc_state;
657 BufferedFile *bf = file;
658 if (bf->fd > 0) {
659 close(bf->fd);
660 total_lines += bf->line_num;
661 }
662 if (bf->true_filename != bf->filename)
663 tcc_free(bf->true_filename);
664 file = bf->prev;
665 tcc_free(bf);
666}
667
668static int _tcc_open(TCCState *s1, const char *filename)
669{
670 int fd;
671 if (strcmp(filename, "-") == 0)
672 fd = 0, filename = "<stdin>";
673 else
674 fd = open(filename, O_RDONLY | O_BINARY);
675 if ((s1->verbose == 2 && fd >= 0) || s1->verbose == 3)
676 printf("%s %*s%s\n", fd < 0 ? "nf":"->",
677 (int)(s1->include_stack_ptr - s1->include_stack), "", filename);
678 return fd;
679}
680
681ST_FUNC int tcc_open(TCCState *s1, const char *filename)
682{
683 int fd = _tcc_open(s1, filename);
684 if (fd < 0)
685 return -1;
686 tcc_open_bf(s1, filename, 0);
687 file->fd = fd;
688 return 0;
689}
690
691/* compile the file opened in 'file'. Return non zero if errors. */
692static int tcc_compile(TCCState *s1, int filetype, const char *str, int fd)
693{
694 /* Here we enter the code section where we use the global variables for
695 parsing and code generation (tccpp.c, tccgen.c, <target>-gen.c).
696 Other threads need to wait until we're done.
697
698 Alternatively we could use thread local storage for those global
699 variables, which may or may not have advantages */
700
701 tcc_enter_state(s1);
702
703 if (setjmp(s1->error_jmp_buf) == 0) {
704 s1->error_set_jmp_enabled = 1;
705 s1->nb_errors = 0;
706
707 if (fd == -1) {
708 int len = strlen(str);
709 tcc_open_bf(s1, "<string>", len);
710 memcpy(file->buffer, str, len);
711 } else {
712 tcc_open_bf(s1, str, 0);
713 file->fd = fd;
714 }
715
716 tccelf_begin_file(s1);
717 preprocess_start(s1, filetype);
718 tccgen_init(s1);
719 if (s1->output_type == TCC_OUTPUT_PREPROCESS) {
720 tcc_preprocess(s1);
721 } else if (filetype & (AFF_TYPE_ASM | AFF_TYPE_ASMPP)) {
722#ifdef CONFIG_TCC_ASM
723 tcc_assemble(s1, !!(filetype & AFF_TYPE_ASMPP));
724#else
725 tcc_error_noabort("asm not supported");
726#endif
727 } else {
728 tccgen_compile(s1);
729 }
730 }
731 s1->error_set_jmp_enabled = 0;
732 tccgen_finish(s1);
733 preprocess_end(s1);
734 tcc_exit_state();
735
736 tccelf_end_file(s1);
737 return s1->nb_errors != 0 ? -1 : 0;
738}
739
740LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str)
741{
742 return tcc_compile(s, s->filetype, str, -1);
743}
744
745/* define a preprocessor symbol. value can be NULL, sym can be "sym=val" */
746LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value)
747{
748 const char *eq;
749 if (NULL == (eq = strchr(sym, '=')))
750 eq = strchr(sym, 0);
751 if (NULL == value)
752 value = *eq ? eq + 1 : "1";
753 cstr_printf(&s1->cmdline_defs, "#define %.*s %s\n", (int)(eq-sym), sym, value);
754}
755
756/* undefine a preprocessor symbol */
757LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym)
758{
759 cstr_printf(&s1->cmdline_defs, "#undef %s\n", sym);
760}
761
762
763LIBTCCAPI TCCState *tcc_new(void)
764{
765 TCCState *s;
766
767 s = tcc_mallocz(sizeof(TCCState));
768 if (!s)
769 return NULL;
770#ifdef MEM_DEBUG
771 ++nb_states;
772#endif
773
774#undef gnu_ext
775
776 s->gnu_ext = 1;
777 s->tcc_ext = 1;
778 s->nocommon = 1;
779 s->dollars_in_identifiers = 1; /*on by default like in gcc/clang*/
780 s->cversion = 199901; /* default unless -std=c11 is supplied */
781 s->warn_implicit_function_declaration = 1;
782 s->ms_extensions = 1;
783
784#ifdef CHAR_IS_UNSIGNED
785 s->char_is_unsigned = 1;
786#endif
787#ifdef TCC_TARGET_I386
788 s->seg_size = 32;
789#endif
790 /* enable this if you want symbols with leading underscore on windows: */
791#if defined TCC_TARGET_MACHO /* || defined TCC_TARGET_PE */
792 s->leading_underscore = 1;
793#endif
794 s->ppfp = stdout;
795 /* might be used in error() before preprocess_start() */
796 s->include_stack_ptr = s->include_stack;
797
798 tccelf_new(s);
799
800#ifdef _WIN32
801 tcc_set_lib_path_w32(s);
802#else
803 tcc_set_lib_path(s, CONFIG_TCCDIR);
804#endif
805
806 {
807 /* define __TINYC__ 92X */
808 char buffer[32]; int a,b,c;
809 sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c);
810 sprintf(buffer, "%d", a*10000 + b*100 + c);
811 tcc_define_symbol(s, "__TINYC__", buffer);
812 }
813
814 /* standard defines */
815 tcc_define_symbol(s, "__STDC__", NULL);
816 tcc_define_symbol(s, "__STDC_VERSION__", "199901L");
817 tcc_define_symbol(s, "__STDC_HOSTED__", NULL);
818
819 /* target defines */
820#if defined(TCC_TARGET_I386)
821 tcc_define_symbol(s, "__i386__", NULL);
822 tcc_define_symbol(s, "__i386", NULL);
823 tcc_define_symbol(s, "i386", NULL);
824#elif defined(TCC_TARGET_X86_64)
825 tcc_define_symbol(s, "__x86_64__", NULL);
826#elif defined(TCC_TARGET_ARM)
827 tcc_define_symbol(s, "__ARM_ARCH_4__", NULL);
828 tcc_define_symbol(s, "__arm_elf__", NULL);
829 tcc_define_symbol(s, "__arm_elf", NULL);
830 tcc_define_symbol(s, "arm_elf", NULL);
831 tcc_define_symbol(s, "__arm__", NULL);
832 tcc_define_symbol(s, "__arm", NULL);
833 tcc_define_symbol(s, "arm", NULL);
834 tcc_define_symbol(s, "__APCS_32__", NULL);
835 tcc_define_symbol(s, "__ARMEL__", NULL);
836#if defined(TCC_ARM_EABI)
837 tcc_define_symbol(s, "__ARM_EABI__", NULL);
838#endif
839#if defined(TCC_ARM_HARDFLOAT)
840 s->float_abi = ARM_HARD_FLOAT;
841 tcc_define_symbol(s, "__ARM_PCS_VFP", NULL);
842#else
843 s->float_abi = ARM_SOFTFP_FLOAT;
844#endif
845#elif defined(TCC_TARGET_ARM64)
846 tcc_define_symbol(s, "__aarch64__", NULL);
847#elif defined TCC_TARGET_C67
848 tcc_define_symbol(s, "__C67__", NULL);
849#elif defined TCC_TARGET_RISCV64
850 tcc_define_symbol(s, "__riscv", NULL);
851 tcc_define_symbol(s, "__riscv_xlen", "64");
852 tcc_define_symbol(s, "__riscv_flen", "64");
853 tcc_define_symbol(s, "__riscv_div", NULL);
854 tcc_define_symbol(s, "__riscv_mul", NULL);
855 tcc_define_symbol(s, "__riscv_fdiv", NULL);
856 tcc_define_symbol(s, "__riscv_fsqrt", NULL);
857 tcc_define_symbol(s, "__riscv_float_abi_double", NULL);
858#endif
859
860#ifdef TCC_TARGET_PE
861 tcc_define_symbol(s, "_WIN32", NULL);
862 tcc_define_symbol(s, "__declspec(x)", "__attribute__((x))");
863 tcc_define_symbol(s, "__cdecl", "");
864# ifdef TCC_TARGET_X86_64
865 tcc_define_symbol(s, "_WIN64", NULL);
866# endif
867#else
868 tcc_define_symbol(s, "__unix__", NULL);
869 tcc_define_symbol(s, "__unix", NULL);
870 tcc_define_symbol(s, "unix", NULL);
871# if defined(__linux__)
872 tcc_define_symbol(s, "__linux__", NULL);
873 tcc_define_symbol(s, "__linux", NULL);
874# endif
875# if defined(__FreeBSD__)
876 tcc_define_symbol(s, "__FreeBSD__", "__FreeBSD__");
877 /* No 'Thread Storage Local' on FreeBSD with tcc */
878 tcc_define_symbol(s, "__NO_TLS", NULL);
879# endif
880# if defined(__FreeBSD_kernel__)
881 tcc_define_symbol(s, "__FreeBSD_kernel__", NULL);
882# endif
883# if defined(__NetBSD__)
884 tcc_define_symbol(s, "__NetBSD__", "__NetBSD__");
885# endif
886# if defined(__OpenBSD__)
887 tcc_define_symbol(s, "__OpenBSD__", "__OpenBSD__");
888# endif
889#endif
890
891 /* TinyCC & gcc defines */
892#if PTR_SIZE == 4
893 /* 32bit systems. */
894 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned int");
895 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "int");
896 tcc_define_symbol(s, "__ILP32__", NULL);
897#elif LONG_SIZE == 4
898 /* 64bit Windows. */
899 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long");
900 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long");
901 tcc_define_symbol(s, "__LLP64__", NULL);
902#else
903 /* Other 64bit systems. */
904 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long");
905 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long");
906 tcc_define_symbol(s, "__LP64__", NULL);
907#endif
908 tcc_define_symbol(s, "__SIZEOF_POINTER__", PTR_SIZE == 4 ? "4" : "8");
909
910#ifdef TCC_TARGET_PE
911 tcc_define_symbol(s, "__WCHAR_TYPE__", "unsigned short");
912 tcc_define_symbol(s, "__WINT_TYPE__", "unsigned short");
913#else
914 tcc_define_symbol(s, "__WCHAR_TYPE__", "int");
915 /* wint_t is unsigned int by default, but (signed) int on BSDs
916 and unsigned short on windows. Other OSes might have still
917 other conventions, sigh. */
918# if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) \
919 || defined(__NetBSD__) || defined(__OpenBSD__)
920 tcc_define_symbol(s, "__WINT_TYPE__", "int");
921# ifdef __FreeBSD__
922 /* define __GNUC__ to have some useful stuff from sys/cdefs.h
923 that are unconditionally used in FreeBSDs other system headers :/ */
924 tcc_define_symbol(s, "__GNUC__", "2");
925 tcc_define_symbol(s, "__GNUC_MINOR__", "7");
926 tcc_define_symbol(s, "__builtin_alloca", "alloca");
927# endif
928# else
929 tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int");
930 /* glibc defines */
931 tcc_define_symbol(s, "__REDIRECT(name, proto, alias)",
932 "name proto __asm__ (#alias)");
933 tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)",
934 "name proto __asm__ (#alias) __THROW");
935# endif
936 /* Some GCC builtins that are simple to express as macros. */
937 tcc_define_symbol(s, "__builtin_extract_return_addr(x)", "x");
938#endif /* ndef TCC_TARGET_PE */
939#ifdef TCC_TARGET_MACHO
940 /* emulate APPLE-GCC to make libc's headerfiles compile: */
941 tcc_define_symbol(s, "__APPLE__", "1");
942 tcc_define_symbol(s, "__GNUC__", "4"); /* darwin emits warning on GCC<4 */
943 tcc_define_symbol(s, "__APPLE_CC__", "1"); /* for <TargetConditionals.h> */
944 tcc_define_symbol(s, "_DONT_USE_CTYPE_INLINE_", "1");
945 tcc_define_symbol(s, "__builtin_alloca", "alloca"); /* as we claim GNUC */
946 /* used by math.h */
947 tcc_define_symbol(s, "__builtin_huge_val()", "1e500");
948 tcc_define_symbol(s, "__builtin_huge_valf()", "1e50f");
949 tcc_define_symbol(s, "__builtin_huge_vall()", "1e5000L");
950 tcc_define_symbol(s, "__builtin_nanf(ignored_string)", "__nan()");
951 /* used by _fd_def.h */
952 tcc_define_symbol(s, "__builtin_bzero(p, ignored_size)", "bzero(p, sizeof(*(p)))");
953 /* used by floats.h to implement FLT_ROUNDS C99 macro. 1 == to nearest */
954 tcc_define_symbol(s, "__builtin_flt_rounds()", "1");
955
956 /* avoids usage of GCC/clang specific builtins in libc-headerfiles: */
957 tcc_define_symbol(s, "__FINITE_MATH_ONLY__", "1");
958 tcc_define_symbol(s, "_FORTIFY_SOURCE", "0");
959#endif /* ndef TCC_TARGET_MACHO */
960
961#if LONG_SIZE == 4
962 tcc_define_symbol(s, "__SIZEOF_LONG__", "4");
963 tcc_define_symbol(s, "__LONG_MAX__", "0x7fffffffL");
964#else
965 tcc_define_symbol(s, "__SIZEOF_LONG__", "8");
966 tcc_define_symbol(s, "__LONG_MAX__", "0x7fffffffffffffffL");
967#endif
968 tcc_define_symbol(s, "__SIZEOF_INT__", "4");
969 tcc_define_symbol(s, "__SIZEOF_LONG_LONG__", "8");
970 tcc_define_symbol(s, "__CHAR_BIT__", "8");
971 tcc_define_symbol(s, "__ORDER_LITTLE_ENDIAN__", "1234");
972 tcc_define_symbol(s, "__ORDER_BIG_ENDIAN__", "4321");
973 tcc_define_symbol(s, "__BYTE_ORDER__", "__ORDER_LITTLE_ENDIAN__");
974 tcc_define_symbol(s, "__INT_MAX__", "0x7fffffff");
975 tcc_define_symbol(s, "__LONG_LONG_MAX__", "0x7fffffffffffffffLL");
976 tcc_define_symbol(s, "__builtin_offsetof(type,field)", "((__SIZE_TYPE__) &((type *)0)->field)");
977 return s;
978}
979
980LIBTCCAPI void tcc_delete(TCCState *s1)
981{
982 /* free sections */
983 tccelf_delete(s1);
984
985 /* free library paths */
986 dynarray_reset(&s1->library_paths, &s1->nb_library_paths);
987 dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths);
988
989 /* free include paths */
990 dynarray_reset(&s1->include_paths, &s1->nb_include_paths);
991 dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths);
992
993 tcc_free(s1->tcc_lib_path);
994 tcc_free(s1->soname);
995 tcc_free(s1->rpath);
996 tcc_free(s1->init_symbol);
997 tcc_free(s1->fini_symbol);
998 tcc_free(s1->outfile);
999 tcc_free(s1->deps_outfile);
1000 dynarray_reset(&s1->files, &s1->nb_files);
1001 dynarray_reset(&s1->target_deps, &s1->nb_target_deps);
1002 dynarray_reset(&s1->pragma_libs, &s1->nb_pragma_libs);
1003 dynarray_reset(&s1->argv, &s1->argc);
1004
1005 cstr_free(&s1->cmdline_defs);
1006 cstr_free(&s1->cmdline_incl);
1007#ifdef TCC_IS_NATIVE
1008 /* free runtime memory */
1009 tcc_run_free(s1);
1010#endif
1011
1012 tcc_free(s1);
1013#ifdef MEM_DEBUG
1014 if (0 == --nb_states)
1015 tcc_memcheck();
1016#endif
1017}
1018
1019LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
1020{
1021 s->output_type = output_type;
1022
1023 /* always elf for objects */
1024 if (output_type == TCC_OUTPUT_OBJ)
1025 s->output_format = TCC_OUTPUT_FORMAT_ELF;
1026
1027 if (s->char_is_unsigned)
1028 tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL);
1029
1030 if (s->cversion == 201112) {
1031 tcc_undefine_symbol(s, "__STDC_VERSION__");
1032 tcc_define_symbol(s, "__STDC_VERSION__", "201112L");
1033 tcc_define_symbol(s, "__STDC_NO_ATOMICS__", NULL);
1034 tcc_define_symbol(s, "__STDC_NO_COMPLEX__", NULL);
1035 tcc_define_symbol(s, "__STDC_NO_THREADS__", NULL);
1036#ifndef TCC_TARGET_PE
1037 /* on Linux, this conflicts with a define introduced by
1038 /usr/include/stdc-predef.h included by glibc libs
1039 tcc_define_symbol(s, "__STDC_ISO_10646__", "201605L"); */
1040 tcc_define_symbol(s, "__STDC_UTF_16__", NULL);
1041 tcc_define_symbol(s, "__STDC_UTF_32__", NULL);
1042#endif
1043 }
1044
1045 if (s->optimize > 0)
1046 tcc_define_symbol(s, "__OPTIMIZE__", NULL);
1047
1048 if (s->option_pthread)
1049 tcc_define_symbol(s, "_REENTRANT", NULL);
1050
1051 if (s->leading_underscore)
1052 tcc_define_symbol(s, "__leading_underscore", NULL);
1053
1054 if (!s->nostdinc) {
1055 /* default include paths */
1056 /* -isystem paths have already been handled */
1057 tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
1058 }
1059
1060#ifdef CONFIG_TCC_BCHECK
1061 if (s->do_bounds_check) {
1062 /* if bound checking, then add corresponding sections */
1063 tccelf_bounds_new(s);
1064 /* define symbol */
1065 tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL);
1066 }
1067#endif
1068 if (s->do_debug) {
1069 /* add debug sections */
1070 tccelf_stab_new(s);
1071 }
1072
1073 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
1074
1075#ifdef TCC_TARGET_PE
1076# ifdef _WIN32
1077 if (!s->nostdlib && output_type != TCC_OUTPUT_OBJ)
1078 tcc_add_systemdir(s);
1079# endif
1080#else
1081 /* paths for crt objects */
1082 tcc_split_path(s, &s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX);
1083 /* add libc crt1/crti objects */
1084 if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) &&
1085 !s->nostdlib) {
1086#ifndef TCC_TARGET_MACHO
1087 /* Mach-O with LC_MAIN doesn't need any crt startup code. */
1088 if (output_type != TCC_OUTPUT_DLL)
1089 tcc_add_crt(s, "crt1.o");
1090 tcc_add_crt(s, "crti.o");
1091#endif
1092 }
1093#endif
1094 return 0;
1095}
1096
1097LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname)
1098{
1099 tcc_split_path(s, &s->include_paths, &s->nb_include_paths, pathname);
1100 return 0;
1101}
1102
1103LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
1104{
1105 tcc_split_path(s, &s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
1106 return 0;
1107}
1108
1109ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags)
1110{
1111 int fd, ret;
1112
1113 /* open the file */
1114 fd = _tcc_open(s1, filename);
1115 if (fd < 0) {
1116 if (flags & AFF_PRINT_ERROR)
1117 tcc_error_noabort("file '%s' not found", filename);
1118 return -1;
1119 }
1120
1121 s1->current_filename = filename;
1122 if (flags & AFF_TYPE_BIN) {
1123 ElfW(Ehdr) ehdr;
1124 int obj_type;
1125
1126 obj_type = tcc_object_type(fd, &ehdr);
1127 lseek(fd, 0, SEEK_SET);
1128
1129#ifdef TCC_TARGET_MACHO
1130 if (0 == obj_type && 0 == strcmp(tcc_fileextension(filename), ".dylib"))
1131 obj_type = AFF_BINTYPE_DYN;
1132#endif
1133
1134 switch (obj_type) {
1135 case AFF_BINTYPE_REL:
1136 ret = tcc_load_object_file(s1, fd, 0);
1137 break;
1138#ifndef TCC_TARGET_PE
1139 case AFF_BINTYPE_DYN:
1140 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1141 ret = 0;
1142#ifdef TCC_IS_NATIVE
1143 if (NULL == dlopen(filename, RTLD_GLOBAL | RTLD_LAZY))
1144 ret = -1;
1145#endif
1146 } else {
1147#ifndef TCC_TARGET_MACHO
1148 ret = tcc_load_dll(s1, fd, filename,
1149 (flags & AFF_REFERENCED_DLL) != 0);
1150#else
1151 ret = macho_load_dll(s1, fd, filename,
1152 (flags & AFF_REFERENCED_DLL) != 0);
1153#endif
1154 }
1155 break;
1156#endif
1157 case AFF_BINTYPE_AR:
1158 ret = tcc_load_archive(s1, fd, !(flags & AFF_WHOLE_ARCHIVE));
1159 break;
1160#ifdef TCC_TARGET_COFF
1161 case AFF_BINTYPE_C67:
1162 ret = tcc_load_coff(s1, fd);
1163 break;
1164#endif
1165 default:
1166#ifdef TCC_TARGET_PE
1167 ret = pe_load_file(s1, filename, fd);
1168#elif defined(TCC_TARGET_MACHO)
1169 ret = -1;
1170#else
1171 /* as GNU ld, consider it is an ld script if not recognized */
1172 ret = tcc_load_ldscript(s1, fd);
1173#endif
1174 if (ret < 0)
1175 tcc_error_noabort("%s: unrecognized file type %d", filename,
1176 obj_type);
1177 break;
1178 }
1179 close(fd);
1180 } else {
1181 /* update target deps */
1182 dynarray_add(&s1->target_deps, &s1->nb_target_deps, tcc_strdup(filename));
1183 ret = tcc_compile(s1, flags, filename, fd);
1184 }
1185 s1->current_filename = NULL;
1186 return ret;
1187}
1188
1189LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename)
1190{
1191 int filetype = s->filetype;
1192 if (0 == (filetype & AFF_TYPE_MASK)) {
1193 /* use a file extension to detect a filetype */
1194 const char *ext = tcc_fileextension(filename);
1195 if (ext[0]) {
1196 ext++;
1197 if (!strcmp(ext, "S"))
1198 filetype = AFF_TYPE_ASMPP;
1199 else if (!strcmp(ext, "s"))
1200 filetype = AFF_TYPE_ASM;
1201 else if (!PATHCMP(ext, "c") || !PATHCMP(ext, "i"))
1202 filetype = AFF_TYPE_C;
1203 else
1204 filetype |= AFF_TYPE_BIN;
1205 } else {
1206 filetype = AFF_TYPE_C;
1207 }
1208 }
1209 return tcc_add_file_internal(s, filename, filetype | AFF_PRINT_ERROR);
1210}
1211
1212LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
1213{
1214 tcc_split_path(s, &s->library_paths, &s->nb_library_paths, pathname);
1215 return 0;
1216}
1217
1218static int tcc_add_library_internal(TCCState *s, const char *fmt,
1219 const char *filename, int flags, char **paths, int nb_paths)
1220{
1221 char buf[1024];
1222 int i;
1223
1224 for(i = 0; i < nb_paths; i++) {
1225 snprintf(buf, sizeof(buf), fmt, paths[i], filename);
1226 if (tcc_add_file_internal(s, buf, flags | AFF_TYPE_BIN) == 0)
1227 return 0;
1228 }
1229 return -1;
1230}
1231
1232#ifndef TCC_TARGET_MACHO
1233/* find and load a dll. Return non zero if not found */
1234/* XXX: add '-rpath' option support ? */
1235ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
1236{
1237 return tcc_add_library_internal(s, "%s/%s", filename, flags,
1238 s->library_paths, s->nb_library_paths);
1239}
1240#endif
1241
1242#if !defined TCC_TARGET_PE && !defined TCC_TARGET_MACHO
1243ST_FUNC int tcc_add_crt(TCCState *s1, const char *filename)
1244{
1245 if (-1 == tcc_add_library_internal(s1, "%s/%s",
1246 filename, 0, s1->crt_paths, s1->nb_crt_paths))
1247 tcc_error_noabort("file '%s' not found", filename);
1248 return 0;
1249}
1250#endif
1251
1252/* the library name is the same as the argument of the '-l' option */
1253LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname)
1254{
1255#if defined TCC_TARGET_PE
1256 const char *libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL };
1257 const char **pp = s->static_link ? libs + 4 : libs;
1258#elif defined TCC_TARGET_MACHO
1259 const char *libs[] = { "%s/lib%s.dylib", "%s/lib%s.a", NULL };
1260 const char **pp = s->static_link ? libs + 1 : libs;
1261#else
1262 const char *libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL };
1263 const char **pp = s->static_link ? libs + 1 : libs;
1264#endif
1265 int flags = s->filetype & AFF_WHOLE_ARCHIVE;
1266 while (*pp) {
1267 if (0 == tcc_add_library_internal(s, *pp,
1268 libraryname, flags, s->library_paths, s->nb_library_paths))
1269 return 0;
1270 ++pp;
1271 }
1272 return -1;
1273}
1274
1275PUB_FUNC int tcc_add_library_err(TCCState *s1, const char *libname)
1276{
1277 int ret = tcc_add_library(s1, libname);
1278 if (ret < 0)
1279 tcc_error_noabort("library '%s' not found", libname);
1280 return ret;
1281}
1282
1283/* handle #pragma comment(lib,) */
1284ST_FUNC void tcc_add_pragma_libs(TCCState *s1)
1285{
1286 int i;
1287 for (i = 0; i < s1->nb_pragma_libs; i++)
1288 tcc_add_library_err(s1, s1->pragma_libs[i]);
1289}
1290
1291LIBTCCAPI int tcc_add_symbol(TCCState *s1, const char *name, const void *val)
1292{
1293#ifdef TCC_TARGET_PE
1294 /* On x86_64 'val' might not be reachable with a 32bit offset.
1295 So it is handled here as if it were in a DLL. */
1296 pe_putimport(s1, 0, name, (uintptr_t)val);
1297#else
1298 char buf[256];
1299 if (s1->leading_underscore) {
1300 buf[0] = '_';
1301 pstrcpy(buf + 1, sizeof(buf) - 1, name);
1302 name = buf;
1303 }
1304 set_global_sym(s1, name, NULL, (addr_t)(uintptr_t)val); /* NULL: SHN_ABS */
1305#endif
1306 return 0;
1307}
1308
1309LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path)
1310{
1311 tcc_free(s->tcc_lib_path);
1312 s->tcc_lib_path = tcc_strdup(path);
1313}
1314
1315#define WD_ALL 0x0001 /* warning is activated when using -Wall */
1316#define FD_INVERT 0x0002 /* invert value before storing */
1317
1318typedef struct FlagDef {
1319 uint16_t offset;
1320 uint16_t flags;
1321 const char *name;
1322} FlagDef;
1323
1324static int no_flag(const char **pp)
1325{
1326 const char *p = *pp;
1327 if (*p != 'n' || *++p != 'o' || *++p != '-')
1328 return 0;
1329 *pp = p + 1;
1330 return 1;
1331}
1332
1333ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, const char *name)
1334{
1335 int value, ret;
1336 const FlagDef *p;
1337 const char *r;
1338
1339 value = 1;
1340 r = name;
1341 if (no_flag(&r))
1342 value = 0;
1343
1344 for (ret = -1, p = flags; p->name; ++p) {
1345 if (ret) {
1346 if (strcmp(r, p->name))
1347 continue;
1348 } else {
1349 if (0 == (p->flags & WD_ALL))
1350 continue;
1351 }
1352 if (p->offset) {
1353 *((unsigned char *)s + p->offset) =
1354 p->flags & FD_INVERT ? !value : value;
1355 if (ret)
1356 return 0;
1357 } else {
1358 ret = 0;
1359 }
1360 }
1361 return ret;
1362}
1363
1364static int strstart(const char *val, const char **str)
1365{
1366 const char *p, *q;
1367 p = *str;
1368 q = val;
1369 while (*q) {
1370 if (*p != *q)
1371 return 0;
1372 p++;
1373 q++;
1374 }
1375 *str = p;
1376 return 1;
1377}
1378
1379/* Like strstart, but automatically takes into account that ld options can
1380 *
1381 * - start with double or single dash (e.g. '--soname' or '-soname')
1382 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1383 * or '-Wl,-soname=x.so')
1384 *
1385 * you provide `val` always in 'option[=]' form (no leading -)
1386 */
1387static int link_option(const char *str, const char *val, const char **ptr)
1388{
1389 const char *p, *q;
1390 int ret;
1391
1392 /* there should be 1 or 2 dashes */
1393 if (*str++ != '-')
1394 return 0;
1395 if (*str == '-')
1396 str++;
1397
1398 /* then str & val should match (potentially up to '=') */
1399 p = str;
1400 q = val;
1401
1402 ret = 1;
1403 if (q[0] == '?') {
1404 ++q;
1405 if (no_flag(&p))
1406 ret = -1;
1407 }
1408
1409 while (*q != '\0' && *q != '=') {
1410 if (*p != *q)
1411 return 0;
1412 p++;
1413 q++;
1414 }
1415
1416 /* '=' near eos means ',' or '=' is ok */
1417 if (*q == '=') {
1418 if (*p == 0)
1419 *ptr = p;
1420 if (*p != ',' && *p != '=')
1421 return 0;
1422 p++;
1423 } else if (*p) {
1424 return 0;
1425 }
1426 *ptr = p;
1427 return ret;
1428}
1429
1430static const char *skip_linker_arg(const char **str)
1431{
1432 const char *s1 = *str;
1433 const char *s2 = strchr(s1, ',');
1434 *str = s2 ? s2++ : (s2 = s1 + strlen(s1));
1435 return s2;
1436}
1437
1438static void copy_linker_arg(char **pp, const char *s, int sep)
1439{
1440 const char *q = s;
1441 char *p = *pp;
1442 int l = 0;
1443 if (p && sep)
1444 p[l = strlen(p)] = sep, ++l;
1445 skip_linker_arg(&q);
1446 pstrncpy(l + (*pp = tcc_realloc(p, q - s + l + 1)), s, q - s);
1447}
1448
1449/* set linker options */
1450static int tcc_set_linker(TCCState *s, const char *option)
1451{
1452 TCCState *s1 = s;
1453 while (*option) {
1454
1455 const char *p = NULL;
1456 char *end = NULL;
1457 int ignoring = 0;
1458 int ret;
1459
1460 if (link_option(option, "Bsymbolic", &p)) {
1461 s->symbolic = 1;
1462 } else if (link_option(option, "nostdlib", &p)) {
1463 s->nostdlib = 1;
1464 } else if (link_option(option, "fini=", &p)) {
1465 copy_linker_arg(&s->fini_symbol, p, 0);
1466 ignoring = 1;
1467 } else if (link_option(option, "image-base=", &p)
1468 || link_option(option, "Ttext=", &p)) {
1469 s->text_addr = strtoull(p, &end, 16);
1470 s->has_text_addr = 1;
1471 } else if (link_option(option, "init=", &p)) {
1472 copy_linker_arg(&s->init_symbol, p, 0);
1473 ignoring = 1;
1474 } else if (link_option(option, "oformat=", &p)) {
1475#if defined(TCC_TARGET_PE)
1476 if (strstart("pe-", &p)) {
1477#elif PTR_SIZE == 8
1478 if (strstart("elf64-", &p)) {
1479#else
1480 if (strstart("elf32-", &p)) {
1481#endif
1482 s->output_format = TCC_OUTPUT_FORMAT_ELF;
1483 } else if (!strcmp(p, "binary")) {
1484 s->output_format = TCC_OUTPUT_FORMAT_BINARY;
1485#ifdef TCC_TARGET_COFF
1486 } else if (!strcmp(p, "coff")) {
1487 s->output_format = TCC_OUTPUT_FORMAT_COFF;
1488#endif
1489 } else
1490 goto err;
1491
1492 } else if (link_option(option, "as-needed", &p)) {
1493 ignoring = 1;
1494 } else if (link_option(option, "O", &p)) {
1495 ignoring = 1;
1496 } else if (link_option(option, "export-all-symbols", &p)) {
1497 s->rdynamic = 1;
1498 } else if (link_option(option, "export-dynamic", &p)) {
1499 s->rdynamic = 1;
1500 } else if (link_option(option, "rpath=", &p)) {
1501 copy_linker_arg(&s->rpath, p, ':');
1502 } else if (link_option(option, "enable-new-dtags", &p)) {
1503 s->enable_new_dtags = 1;
1504 } else if (link_option(option, "section-alignment=", &p)) {
1505 s->section_align = strtoul(p, &end, 16);
1506 } else if (link_option(option, "soname=", &p)) {
1507 copy_linker_arg(&s->soname, p, 0);
1508#ifdef TCC_TARGET_PE
1509 } else if (link_option(option, "large-address-aware", &p)) {
1510 s->pe_characteristics |= 0x20;
1511 } else if (link_option(option, "file-alignment=", &p)) {
1512 s->pe_file_align = strtoul(p, &end, 16);
1513 } else if (link_option(option, "stack=", &p)) {
1514 s->pe_stack_size = strtoul(p, &end, 10);
1515 } else if (link_option(option, "subsystem=", &p)) {
1516#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1517 if (!strcmp(p, "native")) {
1518 s->pe_subsystem = 1;
1519 } else if (!strcmp(p, "console")) {
1520 s->pe_subsystem = 3;
1521 } else if (!strcmp(p, "gui") || !strcmp(p, "windows")) {
1522 s->pe_subsystem = 2;
1523 } else if (!strcmp(p, "posix")) {
1524 s->pe_subsystem = 7;
1525 } else if (!strcmp(p, "efiapp")) {
1526 s->pe_subsystem = 10;
1527 } else if (!strcmp(p, "efiboot")) {
1528 s->pe_subsystem = 11;
1529 } else if (!strcmp(p, "efiruntime")) {
1530 s->pe_subsystem = 12;
1531 } else if (!strcmp(p, "efirom")) {
1532 s->pe_subsystem = 13;
1533#elif defined(TCC_TARGET_ARM)
1534 if (!strcmp(p, "wince")) {
1535 s->pe_subsystem = 9;
1536#endif
1537 } else
1538 goto err;
1539#endif
1540 } else if (ret = link_option(option, "?whole-archive", &p), ret) {
1541 if (ret > 0)
1542 s->filetype |= AFF_WHOLE_ARCHIVE;
1543 else
1544 s->filetype &= ~AFF_WHOLE_ARCHIVE;
1545 } else if (p) {
1546 return 0;
1547 } else {
1548 err:
1549 tcc_error("unsupported linker option '%s'", option);
1550 }
1551
1552 if (ignoring && s->warn_unsupported)
1553 tcc_warning("unsupported linker option '%s'", option);
1554
1555 option = skip_linker_arg(&p);
1556 }
1557 return 1;
1558}
1559
1560typedef struct TCCOption {
1561 const char *name;
1562 uint16_t index;
1563 uint16_t flags;
1564} TCCOption;
1565
1566enum {
1567 TCC_OPTION_HELP,
1568 TCC_OPTION_HELP2,
1569 TCC_OPTION_v,
1570 TCC_OPTION_I,
1571 TCC_OPTION_D,
1572 TCC_OPTION_U,
1573 TCC_OPTION_P,
1574 TCC_OPTION_L,
1575 TCC_OPTION_B,
1576 TCC_OPTION_l,
1577 TCC_OPTION_bench,
1578 TCC_OPTION_bt,
1579 TCC_OPTION_b,
1580 TCC_OPTION_ba,
1581 TCC_OPTION_g,
1582 TCC_OPTION_c,
1583 TCC_OPTION_dumpversion,
1584 TCC_OPTION_d,
1585 TCC_OPTION_static,
1586 TCC_OPTION_std,
1587 TCC_OPTION_shared,
1588 TCC_OPTION_soname,
1589 TCC_OPTION_o,
1590 TCC_OPTION_r,
1591 TCC_OPTION_s,
1592 TCC_OPTION_traditional,
1593 TCC_OPTION_Wl,
1594 TCC_OPTION_Wp,
1595 TCC_OPTION_W,
1596 TCC_OPTION_O,
1597 TCC_OPTION_mfloat_abi,
1598 TCC_OPTION_m,
1599 TCC_OPTION_f,
1600 TCC_OPTION_isystem,
1601 TCC_OPTION_iwithprefix,
1602 TCC_OPTION_include,
1603 TCC_OPTION_nostdinc,
1604 TCC_OPTION_nostdlib,
1605 TCC_OPTION_print_search_dirs,
1606 TCC_OPTION_rdynamic,
1607 TCC_OPTION_param,
1608 TCC_OPTION_pedantic,
1609 TCC_OPTION_pthread,
1610 TCC_OPTION_run,
1611 TCC_OPTION_w,
1612 TCC_OPTION_pipe,
1613 TCC_OPTION_E,
1614 TCC_OPTION_MD,
1615 TCC_OPTION_MF,
1616 TCC_OPTION_x,
1617 TCC_OPTION_ar,
1618 TCC_OPTION_impdef,
1619 TCC_OPTION_C
1620};
1621
1622#define TCC_OPTION_HAS_ARG 0x0001
1623#define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1624
1625static const TCCOption tcc_options[] = {
1626 { "h", TCC_OPTION_HELP, 0 },
1627 { "-help", TCC_OPTION_HELP, 0 },
1628 { "?", TCC_OPTION_HELP, 0 },
1629 { "hh", TCC_OPTION_HELP2, 0 },
1630 { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1631 { "-version", TCC_OPTION_v, 0 }, /* handle as verbose, also prints version*/
1632 { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG },
1633 { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG },
1634 { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG },
1635 { "P", TCC_OPTION_P, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1636 { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG },
1637 { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG },
1638 { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG },
1639 { "bench", TCC_OPTION_bench, 0 },
1640#ifdef CONFIG_TCC_BACKTRACE
1641 { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1642#endif
1643#ifdef CONFIG_TCC_BCHECK
1644 { "b", TCC_OPTION_b, 0 },
1645#endif
1646 { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1647 { "c", TCC_OPTION_c, 0 },
1648 { "dumpversion", TCC_OPTION_dumpversion, 0},
1649 { "d", TCC_OPTION_d, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1650 { "static", TCC_OPTION_static, 0 },
1651 { "std", TCC_OPTION_std, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1652 { "shared", TCC_OPTION_shared, 0 },
1653 { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG },
1654 { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG },
1655 { "-param", TCC_OPTION_param, TCC_OPTION_HAS_ARG },
1656 { "pedantic", TCC_OPTION_pedantic, 0},
1657 { "pthread", TCC_OPTION_pthread, 0},
1658 { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1659 { "rdynamic", TCC_OPTION_rdynamic, 0 },
1660 { "r", TCC_OPTION_r, 0 },
1661 { "s", TCC_OPTION_s, 0 },
1662 { "traditional", TCC_OPTION_traditional, 0 },
1663 { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1664 { "Wp,", TCC_OPTION_Wp, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1665 { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1666 { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1667#ifdef TCC_TARGET_ARM
1668 { "mfloat-abi", TCC_OPTION_mfloat_abi, TCC_OPTION_HAS_ARG },
1669#endif
1670 { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1671 { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1672 { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
1673 { "include", TCC_OPTION_include, TCC_OPTION_HAS_ARG },
1674 { "nostdinc", TCC_OPTION_nostdinc, 0 },
1675 { "nostdlib", TCC_OPTION_nostdlib, 0 },
1676 { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 },
1677 { "w", TCC_OPTION_w, 0 },
1678 { "pipe", TCC_OPTION_pipe, 0},
1679 { "E", TCC_OPTION_E, 0},
1680 { "MD", TCC_OPTION_MD, 0},
1681 { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG },
1682 { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG },
1683 { "ar", TCC_OPTION_ar, 0},
1684#ifdef TCC_TARGET_PE
1685 { "impdef", TCC_OPTION_impdef, 0},
1686#endif
1687 { "C", TCC_OPTION_C, 0},
1688 { NULL, 0, 0 },
1689};
1690
1691static const FlagDef options_W[] = {
1692 { 0, 0, "all" },
1693 { offsetof(TCCState, warn_unsupported), 0, "unsupported" },
1694 { offsetof(TCCState, warn_write_strings), 0, "write-strings" },
1695 { offsetof(TCCState, warn_error), 0, "error" },
1696 { offsetof(TCCState, warn_gcc_compat), 0, "gcc-compat" },
1697 { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL,
1698 "implicit-function-declaration" },
1699 { 0, 0, NULL }
1700};
1701
1702static const FlagDef options_f[] = {
1703 { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
1704 { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
1705 { offsetof(TCCState, nocommon), FD_INVERT, "common" },
1706 { offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
1707 { offsetof(TCCState, ms_extensions), 0, "ms-extensions" },
1708 { offsetof(TCCState, dollars_in_identifiers), 0, "dollars-in-identifiers" },
1709 { 0, 0, NULL }
1710};
1711
1712static const FlagDef options_m[] = {
1713 { offsetof(TCCState, ms_bitfields), 0, "ms-bitfields" },
1714#ifdef TCC_TARGET_X86_64
1715 { offsetof(TCCState, nosse), FD_INVERT, "sse" },
1716#endif
1717 { 0, 0, NULL }
1718};
1719
1720static void args_parser_add_file(TCCState *s, const char* filename, int filetype)
1721{
1722 struct filespec *f = tcc_malloc(sizeof *f + strlen(filename));
1723 f->type = filetype;
1724 strcpy(f->name, filename);
1725 dynarray_add(&s->files, &s->nb_files, f);
1726}
1727
1728static int args_parser_make_argv(const char *r, int *argc, char ***argv)
1729{
1730 int ret = 0, q, c;
1731 CString str;
1732 for(;;) {
1733 while (c = (unsigned char)*r, c && c <= ' ')
1734 ++r;
1735 if (c == 0)
1736 break;
1737 q = 0;
1738 cstr_new(&str);
1739 while (c = (unsigned char)*r, c) {
1740 ++r;
1741 if (c == '\\' && (*r == '"' || *r == '\\')) {
1742 c = *r++;
1743 } else if (c == '"') {
1744 q = !q;
1745 continue;
1746 } else if (q == 0 && c <= ' ') {
1747 break;
1748 }
1749 cstr_ccat(&str, c);
1750 }
1751 cstr_ccat(&str, 0);
1752 //printf("<%s>\n", str.data), fflush(stdout);
1753 dynarray_add(argv, argc, tcc_strdup(str.data));
1754 cstr_free(&str);
1755 ++ret;
1756 }
1757 return ret;
1758}
1759
1760/* read list file */
1761static void args_parser_listfile(TCCState *s,
1762 const char *filename, int optind, int *pargc, char ***pargv)
1763{
1764 TCCState *s1 = s;
1765 int fd, i;
1766 size_t len;
1767 char *p;
1768 int argc = 0;
1769 char **argv = NULL;
1770
1771 fd = open(filename, O_RDONLY | O_BINARY);
1772 if (fd < 0)
1773 tcc_error("listfile '%s' not found", filename);
1774
1775 len = lseek(fd, 0, SEEK_END);
1776 p = tcc_malloc(len + 1), p[len] = 0;
1777 lseek(fd, 0, SEEK_SET), read(fd, p, len), close(fd);
1778
1779 for (i = 0; i < *pargc; ++i)
1780 if (i == optind)
1781 args_parser_make_argv(p, &argc, &argv);
1782 else
1783 dynarray_add(&argv, &argc, tcc_strdup((*pargv)[i]));
1784
1785 tcc_free(p);
1786 dynarray_reset(&s->argv, &s->argc);
1787 *pargc = s->argc = argc, *pargv = s->argv = argv;
1788}
1789
1790PUB_FUNC int tcc_parse_args(TCCState *s, int *pargc, char ***pargv, int optind)
1791{
1792 TCCState *s1 = s;
1793 const TCCOption *popt;
1794 const char *optarg, *r;
1795 const char *run = NULL;
1796 int x;
1797 CString linker_arg; /* collect -Wl options */
1798 int tool = 0, arg_start = 0, noaction = optind;
1799 char **argv = *pargv;
1800 int argc = *pargc;
1801
1802 cstr_new(&linker_arg);
1803
1804 while (optind < argc) {
1805 r = argv[optind];
1806 if (r[0] == '@' && r[1] != '\0') {
1807 args_parser_listfile(s, r + 1, optind, &argc, &argv);
1808 continue;
1809 }
1810 optind++;
1811 if (tool) {
1812 if (r[0] == '-' && r[1] == 'v' && r[2] == 0)
1813 ++s->verbose;
1814 continue;
1815 }
1816reparse:
1817 if (r[0] != '-' || r[1] == '\0') {
1818 if (r[0] != '@') /* allow "tcc file(s) -run @ args ..." */
1819 args_parser_add_file(s, r, s->filetype);
1820 if (run) {
1821 tcc_set_options(s, run);
1822 arg_start = optind - 1;
1823 break;
1824 }
1825 continue;
1826 }
1827
1828 /* find option in table */
1829 for(popt = tcc_options; ; ++popt) {
1830 const char *p1 = popt->name;
1831 const char *r1 = r + 1;
1832 if (p1 == NULL)
1833 tcc_error("invalid option -- '%s'", r);
1834 if (!strstart(p1, &r1))
1835 continue;
1836 optarg = r1;
1837 if (popt->flags & TCC_OPTION_HAS_ARG) {
1838 if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) {
1839 if (optind >= argc)
1840 arg_err:
1841 tcc_error("argument to '%s' is missing", r);
1842 optarg = argv[optind++];
1843 }
1844 } else if (*r1 != '\0')
1845 continue;
1846 break;
1847 }
1848
1849 switch(popt->index) {
1850 case TCC_OPTION_HELP:
1851 x = OPT_HELP;
1852 goto extra_action;
1853 case TCC_OPTION_HELP2:
1854 x = OPT_HELP2;
1855 goto extra_action;
1856 case TCC_OPTION_I:
1857 tcc_add_include_path(s, optarg);
1858 break;
1859 case TCC_OPTION_D:
1860 tcc_define_symbol(s, optarg, NULL);
1861 break;
1862 case TCC_OPTION_U:
1863 tcc_undefine_symbol(s, optarg);
1864 break;
1865 case TCC_OPTION_L:
1866 tcc_add_library_path(s, optarg);
1867 break;
1868 case TCC_OPTION_B:
1869 /* set tcc utilities path (mainly for tcc development) */
1870 tcc_set_lib_path(s, optarg);
1871 break;
1872 case TCC_OPTION_l:
1873 args_parser_add_file(s, optarg, AFF_TYPE_LIB | (s->filetype & ~AFF_TYPE_MASK));
1874 s->nb_libraries++;
1875 break;
1876 case TCC_OPTION_pthread:
1877 s->option_pthread = 1;
1878 break;
1879 case TCC_OPTION_bench:
1880 s->do_bench = 1;
1881 break;
1882#ifdef CONFIG_TCC_BACKTRACE
1883 case TCC_OPTION_bt:
1884 s->rt_num_callers = atoi(optarg);
1885 s->do_backtrace = 1;
1886 s->do_debug = 1;
1887 break;
1888#endif
1889#ifdef CONFIG_TCC_BCHECK
1890 case TCC_OPTION_b:
1891 s->do_bounds_check = 1;
1892 s->do_backtrace = 1;
1893 s->do_debug = 1;
1894 break;
1895#endif
1896 case TCC_OPTION_g:
1897 s->do_debug = 1;
1898 break;
1899 case TCC_OPTION_c:
1900 x = TCC_OUTPUT_OBJ;
1901 set_output_type:
1902 if (s->output_type)
1903 tcc_warning("-%s: overriding compiler action already specified", popt->name);
1904 s->output_type = x;
1905 break;
1906 case TCC_OPTION_d:
1907 if (*optarg == 'D')
1908 s->dflag = 3;
1909 else if (*optarg == 'M')
1910 s->dflag = 7;
1911 else if (*optarg == 't')
1912 s->dflag = 16;
1913 else if (isnum(*optarg))
1914 s->g_debug |= atoi(optarg);
1915 else
1916 goto unsupported_option;
1917 break;
1918 case TCC_OPTION_static:
1919 s->static_link = 1;
1920 break;
1921 case TCC_OPTION_std:
1922 if (strcmp(optarg, "=c11") == 0)
1923 s->cversion = 201112;
1924 break;
1925 case TCC_OPTION_shared:
1926 x = TCC_OUTPUT_DLL;
1927 goto set_output_type;
1928 case TCC_OPTION_soname:
1929 s->soname = tcc_strdup(optarg);
1930 break;
1931 case TCC_OPTION_o:
1932 if (s->outfile) {
1933 tcc_warning("multiple -o option");
1934 tcc_free(s->outfile);
1935 }
1936 s->outfile = tcc_strdup(optarg);
1937 break;
1938 case TCC_OPTION_r:
1939 /* generate a .o merging several output files */
1940 s->option_r = 1;
1941 x = TCC_OUTPUT_OBJ;
1942 goto set_output_type;
1943 case TCC_OPTION_isystem:
1944 tcc_add_sysinclude_path(s, optarg);
1945 break;
1946 case TCC_OPTION_include:
1947 cstr_printf(&s->cmdline_incl, "#include \"%s\"\n", optarg);
1948 break;
1949 case TCC_OPTION_nostdinc:
1950 s->nostdinc = 1;
1951 break;
1952 case TCC_OPTION_nostdlib:
1953 s->nostdlib = 1;
1954 break;
1955 case TCC_OPTION_run:
1956#ifndef TCC_IS_NATIVE
1957 tcc_error("-run is not available in a cross compiler");
1958#endif
1959 run = optarg;
1960 x = TCC_OUTPUT_MEMORY;
1961 goto set_output_type;
1962 case TCC_OPTION_v:
1963 do ++s->verbose; while (*optarg++ == 'v');
1964 ++noaction;
1965 break;
1966 case TCC_OPTION_f:
1967 if (set_flag(s, options_f, optarg) < 0)
1968 goto unsupported_option;
1969 break;
1970#ifdef TCC_TARGET_ARM
1971 case TCC_OPTION_mfloat_abi:
1972 /* tcc doesn't support soft float yet */
1973 if (!strcmp(optarg, "softfp")) {
1974 s->float_abi = ARM_SOFTFP_FLOAT;
1975 tcc_undefine_symbol(s, "__ARM_PCS_VFP");
1976 } else if (!strcmp(optarg, "hard"))
1977 s->float_abi = ARM_HARD_FLOAT;
1978 else
1979 tcc_error("unsupported float abi '%s'", optarg);
1980 break;
1981#endif
1982 case TCC_OPTION_m:
1983 if (set_flag(s, options_m, optarg) < 0) {
1984 if (x = atoi(optarg), x != 32 && x != 64)
1985 goto unsupported_option;
1986 if (PTR_SIZE != x/8)
1987 return x;
1988 ++noaction;
1989 }
1990 break;
1991 case TCC_OPTION_W:
1992 s->warn_none = 0;
1993 if (optarg[0] && set_flag(s, options_W, optarg) < 0)
1994 goto unsupported_option;
1995 break;
1996 case TCC_OPTION_w:
1997 s->warn_none = 1;
1998 break;
1999 case TCC_OPTION_rdynamic:
2000 s->rdynamic = 1;
2001 break;
2002 case TCC_OPTION_Wl:
2003 if (linker_arg.size)
2004 --linker_arg.size, cstr_ccat(&linker_arg, ',');
2005 cstr_cat(&linker_arg, optarg, 0);
2006 if (tcc_set_linker(s, linker_arg.data))
2007 cstr_free(&linker_arg);
2008 break;
2009 case TCC_OPTION_Wp:
2010 r = optarg;
2011 goto reparse;
2012 case TCC_OPTION_E:
2013 x = TCC_OUTPUT_PREPROCESS;
2014 goto set_output_type;
2015 case TCC_OPTION_P:
2016 s->Pflag = atoi(optarg) + 1;
2017 break;
2018 case TCC_OPTION_MD:
2019 s->gen_deps = 1;
2020 break;
2021 case TCC_OPTION_MF:
2022 s->deps_outfile = tcc_strdup(optarg);
2023 break;
2024 case TCC_OPTION_dumpversion:
2025 printf ("%s\n", TCC_VERSION);
2026 exit(0);
2027 break;
2028 case TCC_OPTION_x:
2029 x = 0;
2030 if (*optarg == 'c')
2031 x = AFF_TYPE_C;
2032 else if (*optarg == 'a')
2033 x = AFF_TYPE_ASMPP;
2034 else if (*optarg == 'b')
2035 x = AFF_TYPE_BIN;
2036 else if (*optarg == 'n')
2037 x = AFF_TYPE_NONE;
2038 else
2039 tcc_warning("unsupported language '%s'", optarg);
2040 s->filetype = x | (s->filetype & ~AFF_TYPE_MASK);
2041 break;
2042 case TCC_OPTION_O:
2043 s->optimize = atoi(optarg);
2044 break;
2045 case TCC_OPTION_print_search_dirs:
2046 x = OPT_PRINT_DIRS;
2047 goto extra_action;
2048 case TCC_OPTION_impdef:
2049 x = OPT_IMPDEF;
2050 goto extra_action;
2051 case TCC_OPTION_ar:
2052 x = OPT_AR;
2053 extra_action:
2054 arg_start = optind - 1;
2055 if (arg_start != noaction)
2056 tcc_error("cannot parse %s here", r);
2057 tool = x;
2058 break;
2059 case TCC_OPTION_traditional:
2060 case TCC_OPTION_pedantic:
2061 case TCC_OPTION_pipe:
2062 case TCC_OPTION_s:
2063 case TCC_OPTION_C:
2064 /* ignored */
2065 break;
2066 default:
2067unsupported_option:
2068 if (s->warn_unsupported)
2069 tcc_warning("unsupported option '%s'", r);
2070 break;
2071 }
2072 }
2073 if (linker_arg.size) {
2074 r = linker_arg.data;
2075 goto arg_err;
2076 }
2077 *pargc = argc - arg_start;
2078 *pargv = argv + arg_start;
2079 if (tool)
2080 return tool;
2081 if (optind != noaction)
2082 return 0;
2083 if (s->verbose == 2)
2084 return OPT_PRINT_DIRS;
2085 if (s->verbose)
2086 return OPT_V;
2087 return OPT_HELP;
2088}
2089
2090LIBTCCAPI void tcc_set_options(TCCState *s, const char *r)
2091{
2092 char **argv = NULL;
2093 int argc = 0;
2094 args_parser_make_argv(r, &argc, &argv);
2095 tcc_parse_args(s, &argc, &argv, 0);
2096 dynarray_reset(&argv, &argc);
2097}
2098
2099PUB_FUNC void tcc_print_stats(TCCState *s1, unsigned total_time)
2100{
2101 if (total_time < 1)
2102 total_time = 1;
2103 if (total_bytes < 1)
2104 total_bytes = 1;
2105 fprintf(stderr, "* %d idents, %d lines, %d bytes\n"
2106 "* %0.3f s, %u lines/s, %0.1f MB/s\n",
2107 total_idents, total_lines, total_bytes,
2108 (double)total_time/1000,
2109 (unsigned)total_lines*1000/total_time,
2110 (double)total_bytes/1000/total_time);
2111 fprintf(stderr, "* text %d, data %d, bss %d bytes\n",
2112 s1->total_output[0], s1->total_output[1], s1->total_output[2]);
2113#ifdef MEM_DEBUG
2114 fprintf(stderr, "* %d bytes memory used\n", mem_max_size);
2115#endif
2116}
2117