Revert "Add predictability in CType initialization."
[tinycc.git] / libtcc.c
blob68b3e10b699d82971e989da6e04fb4c6f312a7a7
1 /*
2 * TCC - Tiny C Compiler
3 *
4 * Copyright (c) 2001-2004 Fabrice Bellard
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.
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.
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
21 #include "tcc.h"
23 /********************************************************/
24 /* global variables */
26 /* use GNU C extensions */
27 ST_DATA int gnu_ext = 1;
29 /* use TinyCC extensions */
30 ST_DATA int tcc_ext = 1;
32 /* XXX: get rid of this ASAP */
33 ST_DATA struct TCCState *tcc_state;
35 /********************************************************/
37 #ifdef ONE_SOURCE
38 #include "tccpp.c"
39 #include "tccgen.c"
40 #include "tccelf.c"
41 #include "tccrun.c"
42 #ifdef TCC_TARGET_I386
43 #include "i386-gen.c"
44 #endif
45 #ifdef TCC_TARGET_ARM
46 #include "arm-gen.c"
47 #endif
48 #ifdef TCC_TARGET_C67
49 #include "c67-gen.c"
50 #endif
51 #ifdef TCC_TARGET_X86_64
52 #include "x86_64-gen.c"
53 #endif
54 #ifdef CONFIG_TCC_ASM
55 #include "tccasm.c"
56 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
57 #include "i386-asm.c"
58 #endif
59 #endif
60 #ifdef TCC_TARGET_COFF
61 #include "tcccoff.c"
62 #endif
63 #ifdef TCC_TARGET_PE
64 #include "tccpe.c"
65 #endif
66 #endif /* ONE_SOURCE */
68 /********************************************************/
69 #ifndef CONFIG_TCC_ASM
70 ST_FUNC void asm_instr(void)
72 tcc_error("inline asm() not supported");
74 ST_FUNC void asm_global_instr(void)
76 tcc_error("inline asm() not supported");
78 #endif
80 /********************************************************/
82 #ifdef _WIN32
83 static char *normalize_slashes(char *path)
85 char *p;
86 for (p = path; *p; ++p)
87 if (*p == '\\')
88 *p = '/';
89 return path;
92 static HMODULE tcc_module;
94 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
95 static void tcc_set_lib_path_w32(TCCState *s)
97 char path[1024], *p;
98 GetModuleFileNameA(tcc_module, path, sizeof path);
99 p = tcc_basename(normalize_slashes(strlwr(path)));
100 if (p - 5 > path && 0 == strncmp(p - 5, "/bin/", 5))
101 p -= 5;
102 else if (p > path)
103 p--;
104 *p = 0;
105 tcc_set_lib_path(s, path);
108 static void tcc_add_systemdir(TCCState *s)
110 char buf[1000];
111 GetSystemDirectory(buf, sizeof buf);
112 tcc_add_library_path(s, normalize_slashes(buf));
115 #ifndef CONFIG_TCC_STATIC
116 void dlclose(void *p)
118 FreeLibrary((HMODULE)p);
120 #endif
122 #ifdef LIBTCC_AS_DLL
123 BOOL WINAPI DllMain (HANDLE hDll, DWORD dwReason, LPVOID lpReserved)
125 if (DLL_PROCESS_ATTACH == dwReason)
126 tcc_module = hDll;
127 return TRUE;
129 #endif
130 #endif
132 /********************************************************/
133 /* copy a string and truncate it. */
134 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s)
136 char *q, *q_end;
137 int c;
139 if (buf_size > 0) {
140 q = buf;
141 q_end = buf + buf_size - 1;
142 while (q < q_end) {
143 c = *s++;
144 if (c == '\0')
145 break;
146 *q++ = c;
148 *q = '\0';
150 return buf;
153 /* strcat and truncate. */
154 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s)
156 int len;
157 len = strlen(buf);
158 if (len < buf_size)
159 pstrcpy(buf + len, buf_size - len, s);
160 return buf;
163 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num)
165 memcpy(out, in, num);
166 out[num] = '\0';
167 return out;
170 /* extract the basename of a file */
171 PUB_FUNC char *tcc_basename(const char *name)
173 char *p = strchr(name, 0);
174 while (p > name && !IS_DIRSEP(p[-1]))
175 --p;
176 return p;
179 /* extract extension part of a file
181 * (if no extension, return pointer to end-of-string)
183 PUB_FUNC char *tcc_fileextension (const char *name)
185 char *b = tcc_basename(name);
186 char *e = strrchr(b, '.');
187 return e ? e : strchr(b, 0);
190 /********************************************************/
191 /* memory management */
193 #undef free
194 #undef malloc
195 #undef realloc
197 #ifdef MEM_DEBUG
198 int mem_cur_size;
199 int mem_max_size;
200 unsigned malloc_usable_size(void*);
201 #endif
203 PUB_FUNC void tcc_free(void *ptr)
205 #ifdef MEM_DEBUG
206 mem_cur_size -= malloc_usable_size(ptr);
207 #endif
208 free(ptr);
211 PUB_FUNC void *tcc_malloc(unsigned long size)
213 void *ptr;
214 ptr = malloc(size);
215 if (!ptr && size)
216 tcc_error("memory full");
217 #ifdef MEM_DEBUG
218 mem_cur_size += malloc_usable_size(ptr);
219 if (mem_cur_size > mem_max_size)
220 mem_max_size = mem_cur_size;
221 #endif
222 return ptr;
225 PUB_FUNC void *tcc_mallocz(unsigned long size)
227 void *ptr;
228 ptr = tcc_malloc(size);
229 memset(ptr, 0, size);
230 return ptr;
233 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size)
235 void *ptr1;
236 #ifdef MEM_DEBUG
237 mem_cur_size -= malloc_usable_size(ptr);
238 #endif
239 ptr1 = realloc(ptr, size);
240 if (!ptr1 && size)
241 tcc_error("memory full");
242 #ifdef MEM_DEBUG
243 /* NOTE: count not correct if alloc error, but not critical */
244 mem_cur_size += malloc_usable_size(ptr1);
245 if (mem_cur_size > mem_max_size)
246 mem_max_size = mem_cur_size;
247 #endif
248 return ptr1;
251 PUB_FUNC char *tcc_strdup(const char *str)
253 char *ptr;
254 ptr = tcc_malloc(strlen(str) + 1);
255 strcpy(ptr, str);
256 return ptr;
259 PUB_FUNC void tcc_memstats(void)
261 #ifdef MEM_DEBUG
262 printf("memory in use: %d\n", mem_cur_size);
263 #endif
266 #define free(p) use_tcc_free(p)
267 #define malloc(s) use_tcc_malloc(s)
268 #define realloc(p, s) use_tcc_realloc(p, s)
270 /********************************************************/
271 /* dynarrays */
273 PUB_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data)
275 int nb, nb_alloc;
276 void **pp;
278 nb = *nb_ptr;
279 pp = *ptab;
280 /* every power of two we double array size */
281 if ((nb & (nb - 1)) == 0) {
282 if (!nb)
283 nb_alloc = 1;
284 else
285 nb_alloc = nb * 2;
286 pp = tcc_realloc(pp, nb_alloc * sizeof(void *));
287 *ptab = pp;
289 pp[nb++] = data;
290 *nb_ptr = nb;
293 PUB_FUNC void dynarray_reset(void *pp, int *n)
295 void **p;
296 for (p = *(void***)pp; *n; ++p, --*n)
297 if (*p)
298 tcc_free(*p);
299 tcc_free(*(void**)pp);
300 *(void**)pp = NULL;
303 static void tcc_split_path(TCCState *s, void ***p_ary, int *p_nb_ary, const char *in)
305 const char *p;
306 do {
307 int c;
308 CString str;
310 cstr_new(&str);
311 for (p = in; c = *p, c != '\0' && c != PATHSEP; ++p) {
312 if (c == '{' && p[1] && p[2] == '}') {
313 c = p[1], p += 2;
314 if (c == 'B')
315 cstr_cat(&str, s->tcc_lib_path);
316 } else {
317 cstr_ccat(&str, c);
320 cstr_ccat(&str, '\0');
321 dynarray_add(p_ary, p_nb_ary, str.data);
322 in = p+1;
323 } while (*p);
326 /********************************************************/
328 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags)
330 Section *sec;
332 sec = tcc_mallocz(sizeof(Section) + strlen(name));
333 strcpy(sec->name, name);
334 sec->sh_type = sh_type;
335 sec->sh_flags = sh_flags;
336 switch(sh_type) {
337 case SHT_HASH:
338 case SHT_REL:
339 case SHT_RELA:
340 case SHT_DYNSYM:
341 case SHT_SYMTAB:
342 case SHT_DYNAMIC:
343 sec->sh_addralign = 4;
344 break;
345 case SHT_STRTAB:
346 sec->sh_addralign = 1;
347 break;
348 default:
349 sec->sh_addralign = 32; /* default conservative alignment */
350 break;
353 if (sh_flags & SHF_PRIVATE) {
354 dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec);
355 } else {
356 sec->sh_num = s1->nb_sections;
357 dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec);
360 return sec;
363 static void free_section(Section *s)
365 tcc_free(s->data);
368 /* realloc section and set its content to zero */
369 ST_FUNC void section_realloc(Section *sec, unsigned long new_size)
371 unsigned long size;
372 unsigned char *data;
374 size = sec->data_allocated;
375 if (size == 0)
376 size = 1;
377 while (size < new_size)
378 size = size * 2;
379 data = tcc_realloc(sec->data, size);
380 memset(data + sec->data_allocated, 0, size - sec->data_allocated);
381 sec->data = data;
382 sec->data_allocated = size;
385 /* reserve at least 'size' bytes in section 'sec' from
386 sec->data_offset. */
387 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size)
389 unsigned long offset, offset1;
391 offset = sec->data_offset;
392 offset1 = offset + size;
393 if (offset1 > sec->data_allocated)
394 section_realloc(sec, offset1);
395 sec->data_offset = offset1;
396 return sec->data + offset;
399 /* reserve at least 'size' bytes from section start */
400 ST_FUNC void section_reserve(Section *sec, unsigned long size)
402 if (size > sec->data_allocated)
403 section_realloc(sec, size);
404 if (size > sec->data_offset)
405 sec->data_offset = size;
408 /* return a reference to a section, and create it if it does not
409 exists */
410 ST_FUNC Section *find_section(TCCState *s1, const char *name)
412 Section *sec;
413 int i;
414 for(i = 1; i < s1->nb_sections; i++) {
415 sec = s1->sections[i];
416 if (!strcmp(name, sec->name))
417 return sec;
419 /* sections are created as PROGBITS */
420 return new_section(s1, name, SHT_PROGBITS, SHF_ALLOC);
423 /* update sym->c so that it points to an external symbol in section
424 'section' with value 'value' */
425 ST_FUNC void put_extern_sym2(Sym *sym, Section *section,
426 uplong value, unsigned long size,
427 int can_add_underscore)
429 int sym_type, sym_bind, sh_num, info, other;
430 ElfW(Sym) *esym;
431 const char *name;
432 char buf1[256];
434 if (section == NULL)
435 sh_num = SHN_UNDEF;
436 else if (section == SECTION_ABS)
437 sh_num = SHN_ABS;
438 else
439 sh_num = section->sh_num;
441 if ((sym->type.t & VT_BTYPE) == VT_FUNC) {
442 sym_type = STT_FUNC;
443 } else if ((sym->type.t & VT_BTYPE) == VT_VOID) {
444 sym_type = STT_NOTYPE;
445 } else {
446 sym_type = STT_OBJECT;
449 if (sym->type.t & VT_STATIC)
450 sym_bind = STB_LOCAL;
451 else {
452 if (sym->type.t & VT_WEAK)
453 sym_bind = STB_WEAK;
454 else
455 sym_bind = STB_GLOBAL;
458 if (!sym->c) {
459 name = get_tok_str(sym->v, NULL);
460 #ifdef CONFIG_TCC_BCHECK
461 if (tcc_state->do_bounds_check) {
462 char buf[32];
464 /* XXX: avoid doing that for statics ? */
465 /* if bound checking is activated, we change some function
466 names by adding the "__bound" prefix */
467 switch(sym->v) {
468 #ifdef TCC_TARGET_PE
469 /* XXX: we rely only on malloc hooks */
470 case TOK_malloc:
471 case TOK_free:
472 case TOK_realloc:
473 case TOK_memalign:
474 case TOK_calloc:
475 #endif
476 case TOK_memcpy:
477 case TOK_memmove:
478 case TOK_memset:
479 case TOK_strlen:
480 case TOK_strcpy:
481 case TOK_alloca:
482 strcpy(buf, "__bound_");
483 strcat(buf, name);
484 name = buf;
485 break;
488 #endif
489 other = 0;
491 #ifdef TCC_TARGET_PE
492 if (sym->type.t & VT_EXPORT)
493 other |= 1;
494 if (sym_type == STT_FUNC && sym->type.ref) {
495 int attr = sym->type.ref->r;
496 if (FUNC_EXPORT(attr))
497 other |= 1;
498 if (FUNC_CALL(attr) == FUNC_STDCALL && can_add_underscore) {
499 sprintf(buf1, "_%s@%d", name, FUNC_ARGS(attr) * PTR_SIZE);
500 name = buf1;
501 other |= 2;
502 can_add_underscore = 0;
504 } else {
505 if (find_elf_sym(tcc_state->dynsymtab_section, name))
506 other |= 4;
507 if (sym->type.t & VT_IMPORT)
508 other |= 4;
510 #endif
511 if (tcc_state->leading_underscore && can_add_underscore) {
512 buf1[0] = '_';
513 pstrcpy(buf1 + 1, sizeof(buf1) - 1, name);
514 name = buf1;
516 if (sym->asm_label) {
517 name = sym->asm_label;
519 info = ELFW(ST_INFO)(sym_bind, sym_type);
520 sym->c = add_elf_sym(symtab_section, value, size, info, other, sh_num, name);
521 } else {
522 esym = &((ElfW(Sym) *)symtab_section->data)[sym->c];
523 esym->st_value = value;
524 esym->st_size = size;
525 esym->st_shndx = sh_num;
529 ST_FUNC void put_extern_sym(Sym *sym, Section *section,
530 uplong value, unsigned long size)
532 put_extern_sym2(sym, section, value, size, 1);
535 /* add a new relocation entry to symbol 'sym' in section 's' */
536 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type)
538 int c = 0;
539 if (sym) {
540 if (0 == sym->c)
541 put_extern_sym(sym, NULL, 0, 0);
542 c = sym->c;
544 /* now we can add ELF relocation info */
545 put_elf_reloc(symtab_section, s, offset, type, c);
548 /********************************************************/
550 static void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap)
552 int len;
553 len = strlen(buf);
554 vsnprintf(buf + len, buf_size - len, fmt, ap);
557 static void strcat_printf(char *buf, int buf_size, const char *fmt, ...)
559 va_list ap;
560 va_start(ap, fmt);
561 strcat_vprintf(buf, buf_size, fmt, ap);
562 va_end(ap);
565 static void error1(TCCState *s1, int is_warning, const char *fmt, va_list ap)
567 char buf[2048];
568 BufferedFile **f;
570 buf[0] = '\0';
571 if (file) {
572 for(f = s1->include_stack; f < s1->include_stack_ptr; f++)
573 strcat_printf(buf, sizeof(buf), "In file included from %s:%d:\n",
574 (*f)->filename, (*f)->line_num);
575 if (file->line_num > 0) {
576 strcat_printf(buf, sizeof(buf),
577 "%s:%d: ", file->filename, file->line_num);
578 } else {
579 strcat_printf(buf, sizeof(buf),
580 "%s: ", file->filename);
582 } else {
583 strcat_printf(buf, sizeof(buf),
584 "tcc: ");
586 if (is_warning)
587 strcat_printf(buf, sizeof(buf), "warning: ");
588 else
589 strcat_printf(buf, sizeof(buf), "error: ");
590 strcat_vprintf(buf, sizeof(buf), fmt, ap);
592 if (!s1->error_func) {
593 /* default case: stderr */
594 fprintf(stderr, "%s\n", buf);
595 } else {
596 s1->error_func(s1->error_opaque, buf);
598 if (!is_warning || s1->warn_error)
599 s1->nb_errors++;
602 LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque,
603 void (*error_func)(void *opaque, const char *msg))
605 s->error_opaque = error_opaque;
606 s->error_func = error_func;
609 /* error without aborting current compilation */
610 PUB_FUNC void tcc_error_noabort(const char *fmt, ...)
612 TCCState *s1 = tcc_state;
613 va_list ap;
615 va_start(ap, fmt);
616 error1(s1, 0, fmt, ap);
617 va_end(ap);
620 PUB_FUNC void tcc_error(const char *fmt, ...)
622 TCCState *s1 = tcc_state;
623 va_list ap;
625 va_start(ap, fmt);
626 error1(s1, 0, fmt, ap);
627 va_end(ap);
628 /* better than nothing: in some cases, we accept to handle errors */
629 if (s1->error_set_jmp_enabled) {
630 longjmp(s1->error_jmp_buf, 1);
631 } else {
632 /* XXX: eliminate this someday */
633 exit(1);
637 PUB_FUNC void tcc_warning(const char *fmt, ...)
639 TCCState *s1 = tcc_state;
640 va_list ap;
642 if (s1->warn_none)
643 return;
645 va_start(ap, fmt);
646 error1(s1, 1, fmt, ap);
647 va_end(ap);
650 /********************************************************/
651 /* I/O layer */
653 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen)
655 BufferedFile *bf;
656 int buflen = initlen ? initlen : IO_BUF_SIZE;
658 bf = tcc_malloc(sizeof(BufferedFile) + buflen);
659 bf->buf_ptr = bf->buffer;
660 bf->buf_end = bf->buffer + initlen;
661 bf->buf_end[0] = CH_EOB; /* put eob symbol */
662 pstrcpy(bf->filename, sizeof(bf->filename), filename);
663 #ifdef _WIN32
664 normalize_slashes(bf->filename);
665 #endif
666 bf->line_num = 1;
667 bf->ifndef_macro = 0;
668 bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
669 bf->fd = -1;
670 bf->prev = file;
671 file = bf;
674 ST_FUNC void tcc_close(void)
676 BufferedFile *bf = file;
677 if (bf->fd > 0) {
678 close(bf->fd);
679 total_lines += bf->line_num;
681 file = bf->prev;
682 tcc_free(bf);
685 ST_FUNC int tcc_open(TCCState *s1, const char *filename)
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 if (fd < 0)
696 return -1;
698 tcc_open_bf(s1, filename, 0);
699 file->fd = fd;
700 return fd;
703 /* compile the C file opened in 'file'. Return non zero if errors. */
704 static int tcc_compile(TCCState *s1)
706 Sym *define_start;
707 SValue *pvtop;
708 char buf[512];
709 volatile int section_sym;
711 #ifdef INC_DEBUG
712 printf("%s: **** new file\n", file->filename);
713 #endif
714 preprocess_init(s1);
716 cur_text_section = NULL;
717 funcname = "";
718 anon_sym = SYM_FIRST_ANOM;
720 /* file info: full path + filename */
721 section_sym = 0; /* avoid warning */
722 if (s1->do_debug) {
723 section_sym = put_elf_sym(symtab_section, 0, 0,
724 ELFW(ST_INFO)(STB_LOCAL, STT_SECTION), 0,
725 text_section->sh_num, NULL);
726 getcwd(buf, sizeof(buf));
727 #ifdef _WIN32
728 normalize_slashes(buf);
729 #endif
730 pstrcat(buf, sizeof(buf), "/");
731 put_stabs_r(buf, N_SO, 0, 0,
732 text_section->data_offset, text_section, section_sym);
733 put_stabs_r(file->filename, N_SO, 0, 0,
734 text_section->data_offset, text_section, section_sym);
736 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
737 symbols can be safely used */
738 put_elf_sym(symtab_section, 0, 0,
739 ELFW(ST_INFO)(STB_LOCAL, STT_FILE), 0,
740 SHN_ABS, file->filename);
742 /* define some often used types */
743 int_type.t = VT_INT;
745 char_pointer_type.t = VT_BYTE;
746 mk_pointer(&char_pointer_type);
748 #if PTR_SIZE == 4
749 size_type.t = VT_INT;
750 #else
751 size_type.t = VT_LLONG;
752 #endif
754 func_old_type.t = VT_FUNC;
755 func_old_type.ref = sym_push(SYM_FIELD, &int_type, FUNC_CDECL, FUNC_OLD);
757 #if defined(TCC_ARM_EABI) && defined(TCC_ARM_VFP)
758 float_type.t = VT_FLOAT;
759 double_type.t = VT_DOUBLE;
761 func_float_type.t = VT_FUNC;
762 func_float_type.ref = sym_push(SYM_FIELD, &float_type, FUNC_CDECL, FUNC_OLD);
763 func_double_type.t = VT_FUNC;
764 func_double_type.ref = sym_push(SYM_FIELD, &double_type, FUNC_CDECL, FUNC_OLD);
765 #endif
767 #if 0
768 /* define 'void *alloca(unsigned int)' builtin function */
770 Sym *s1;
772 p = anon_sym++;
773 sym = sym_push(p, mk_pointer(VT_VOID), FUNC_CDECL, FUNC_NEW);
774 s1 = sym_push(SYM_FIELD, VT_UNSIGNED | VT_INT, 0, 0);
775 s1->next = NULL;
776 sym->next = s1;
777 sym_push(TOK_alloca, VT_FUNC | (p << VT_STRUCT_SHIFT), VT_CONST, 0);
779 #endif
781 define_start = define_stack;
782 nocode_wanted = 1;
784 if (setjmp(s1->error_jmp_buf) == 0) {
785 s1->nb_errors = 0;
786 s1->error_set_jmp_enabled = 1;
788 ch = file->buf_ptr[0];
789 tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
790 parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM;
791 pvtop = vtop;
792 next();
793 decl(VT_CONST);
794 if (tok != TOK_EOF)
795 expect("declaration");
796 if (pvtop != vtop)
797 tcc_warning("internal compiler error: vstack leak? (%d)", vtop - pvtop);
799 /* end of translation unit info */
800 if (s1->do_debug) {
801 put_stabs_r(NULL, N_SO, 0, 0,
802 text_section->data_offset, text_section, section_sym);
806 s1->error_set_jmp_enabled = 0;
808 /* reset define stack, but leave -Dsymbols (may be incorrect if
809 they are undefined) */
810 free_defines(define_start);
812 gen_inline_functions();
814 sym_pop(&global_stack, NULL);
815 sym_pop(&local_stack, NULL);
817 return s1->nb_errors != 0 ? -1 : 0;
820 LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str)
822 int len, ret;
823 len = strlen(str);
825 tcc_open_bf(s, "<string>", len);
826 memcpy(file->buffer, str, len);
827 ret = tcc_compile(s);
828 tcc_close();
829 return ret;
832 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
833 LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value)
835 int len1, len2;
836 /* default value */
837 if (!value)
838 value = "1";
839 len1 = strlen(sym);
840 len2 = strlen(value);
842 /* init file structure */
843 tcc_open_bf(s1, "<define>", len1 + len2 + 1);
844 memcpy(file->buffer, sym, len1);
845 file->buffer[len1] = ' ';
846 memcpy(file->buffer + len1 + 1, value, len2);
848 /* parse with define parser */
849 ch = file->buf_ptr[0];
850 next_nomacro();
851 parse_define();
853 tcc_close();
856 /* undefine a preprocessor symbol */
857 LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym)
859 TokenSym *ts;
860 Sym *s;
861 ts = tok_alloc(sym, strlen(sym));
862 s = define_find(ts->tok);
863 /* undefine symbol by putting an invalid name */
864 if (s)
865 define_undef(s);
868 static void tcc_cleanup(void)
870 int i, n;
872 if (NULL == tcc_state)
873 return;
874 tcc_state = NULL;
876 /* free -D defines */
877 free_defines(NULL);
879 /* free tokens */
880 n = tok_ident - TOK_IDENT;
881 for(i = 0; i < n; i++)
882 tcc_free(table_ident[i]);
883 tcc_free(table_ident);
885 /* free sym_pools */
886 dynarray_reset(&sym_pools, &nb_sym_pools);
887 /* string buffer */
888 cstr_free(&tokcstr);
889 /* reset symbol stack */
890 sym_free_first = NULL;
891 /* cleanup from error/setjmp */
892 macro_ptr = NULL;
895 LIBTCCAPI TCCState *tcc_new(void)
897 TCCState *s;
898 char buffer[100];
899 int a,b,c;
901 tcc_cleanup();
903 s = tcc_mallocz(sizeof(TCCState));
904 if (!s)
905 return NULL;
906 tcc_state = s;
907 #ifdef _WIN32
908 tcc_set_lib_path_w32(s);
909 #else
910 tcc_set_lib_path(s, CONFIG_TCCDIR);
911 #endif
912 s->output_type = TCC_OUTPUT_MEMORY;
913 preprocess_new();
914 s->include_stack_ptr = s->include_stack;
916 /* we add dummy defines for some special macros to speed up tests
917 and to have working defined() */
918 define_push(TOK___LINE__, MACRO_OBJ, NULL, NULL);
919 define_push(TOK___FILE__, MACRO_OBJ, NULL, NULL);
920 define_push(TOK___DATE__, MACRO_OBJ, NULL, NULL);
921 define_push(TOK___TIME__, MACRO_OBJ, NULL, NULL);
923 /* standard defines */
924 tcc_define_symbol(s, "__STDC__", NULL);
925 tcc_define_symbol(s, "__STDC_VERSION__", "199901L");
926 #if defined(TCC_TARGET_I386)
927 tcc_define_symbol(s, "__i386__", NULL);
928 tcc_define_symbol(s, "__i386", NULL);
929 tcc_define_symbol(s, "i386", NULL);
930 #endif
931 #if defined(TCC_TARGET_X86_64)
932 tcc_define_symbol(s, "__x86_64__", NULL);
933 #endif
934 #if defined(TCC_TARGET_ARM)
935 tcc_define_symbol(s, "__ARM_ARCH_4__", NULL);
936 tcc_define_symbol(s, "__arm_elf__", NULL);
937 tcc_define_symbol(s, "__arm_elf", NULL);
938 tcc_define_symbol(s, "arm_elf", NULL);
939 tcc_define_symbol(s, "__arm__", NULL);
940 tcc_define_symbol(s, "__arm", NULL);
941 tcc_define_symbol(s, "arm", NULL);
942 tcc_define_symbol(s, "__APCS_32__", NULL);
943 #endif
944 #ifdef TCC_TARGET_PE
945 tcc_define_symbol(s, "_WIN32", NULL);
946 #ifdef TCC_TARGET_X86_64
947 tcc_define_symbol(s, "_WIN64", NULL);
948 #endif
949 #else
950 tcc_define_symbol(s, "__unix__", NULL);
951 tcc_define_symbol(s, "__unix", NULL);
952 tcc_define_symbol(s, "unix", NULL);
953 #if defined(__FreeBSD__)
954 #define str(s) #s
955 tcc_define_symbol(s, "__FreeBSD__", str( __FreeBSD__));
956 #undef str
957 #endif
958 #if defined(__FreeBSD_kernel__)
959 tcc_define_symbol(s, "__FreeBSD_kernel__", NULL);
960 #endif
961 #if defined(__linux)
962 tcc_define_symbol(s, "__linux__", NULL);
963 tcc_define_symbol(s, "__linux", NULL);
964 #endif
965 #endif
966 /* tiny C specific defines */
967 sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c);
968 sprintf(buffer, "%d", a*10000 + b*100 + c);
969 tcc_define_symbol(s, "__TINYC__", buffer);
971 /* tiny C & gcc defines */
972 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
973 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long");
974 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long");
975 #else
976 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long");
977 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long");
978 #endif
980 #ifdef TCC_TARGET_PE
981 tcc_define_symbol(s, "__WCHAR_TYPE__", "unsigned short");
982 #else
983 tcc_define_symbol(s, "__WCHAR_TYPE__", "int");
984 #endif
986 /* glibc defines */
987 tcc_define_symbol(s, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
988 tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
990 #ifndef TCC_TARGET_PE
991 /* default library paths */
992 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
993 /* paths for crt objects */
994 tcc_split_path(s, (void ***)&s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX);
995 #endif
997 /* no section zero */
998 dynarray_add((void ***)&s->sections, &s->nb_sections, NULL);
1000 /* create standard sections */
1001 text_section = new_section(s, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR);
1002 data_section = new_section(s, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE);
1003 bss_section = new_section(s, ".bss", SHT_NOBITS, SHF_ALLOC | SHF_WRITE);
1005 /* symbols are always generated for linking stage */
1006 symtab_section = new_symtab(s, ".symtab", SHT_SYMTAB, 0,
1007 ".strtab",
1008 ".hashtab", SHF_PRIVATE);
1009 strtab_section = symtab_section->link;
1010 s->symtab = symtab_section;
1012 /* private symbol table for dynamic symbols */
1013 s->dynsymtab_section = new_symtab(s, ".dynsymtab", SHT_SYMTAB, SHF_PRIVATE,
1014 ".dynstrtab",
1015 ".dynhashtab", SHF_PRIVATE);
1016 s->alacarte_link = 1;
1017 s->nocommon = 1;
1019 #ifdef CHAR_IS_UNSIGNED
1020 s->char_is_unsigned = 1;
1021 #endif
1022 /* enable this if you want symbols with leading underscore on windows: */
1023 #if defined(TCC_TARGET_PE) && 0
1024 s->leading_underscore = 1;
1025 #endif
1026 if (s->section_align == 0)
1027 s->section_align = ELF_PAGE_SIZE;
1028 #ifdef TCC_TARGET_I386
1029 s->seg_size = 32;
1030 #endif
1031 return s;
1034 LIBTCCAPI void tcc_delete(TCCState *s1)
1036 int i;
1038 tcc_cleanup();
1040 /* free all sections */
1041 for(i = 1; i < s1->nb_sections; i++)
1042 free_section(s1->sections[i]);
1043 dynarray_reset(&s1->sections, &s1->nb_sections);
1045 for(i = 0; i < s1->nb_priv_sections; i++)
1046 free_section(s1->priv_sections[i]);
1047 dynarray_reset(&s1->priv_sections, &s1->nb_priv_sections);
1049 /* free any loaded DLLs */
1050 for ( i = 0; i < s1->nb_loaded_dlls; i++) {
1051 DLLReference *ref = s1->loaded_dlls[i];
1052 if ( ref->handle )
1053 dlclose(ref->handle);
1056 /* free loaded dlls array */
1057 dynarray_reset(&s1->loaded_dlls, &s1->nb_loaded_dlls);
1059 /* free library paths */
1060 dynarray_reset(&s1->library_paths, &s1->nb_library_paths);
1061 dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths);
1063 /* free include paths */
1064 dynarray_reset(&s1->cached_includes, &s1->nb_cached_includes);
1065 dynarray_reset(&s1->include_paths, &s1->nb_include_paths);
1066 dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths);
1068 dynarray_reset(&s1->target_deps, &s1->nb_target_deps);
1070 tcc_free(s1->tcc_lib_path);
1072 #ifdef HAVE_SELINUX
1073 munmap (s1->write_mem, s1->mem_size);
1074 munmap (s1->runtime_mem, s1->mem_size);
1075 #else
1076 tcc_free(s1->runtime_mem);
1077 #endif
1078 tcc_free(s1);
1081 LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname)
1083 tcc_split_path(s, (void ***)&s->include_paths, &s->nb_include_paths, pathname);
1084 return 0;
1087 LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
1089 tcc_split_path(s, (void ***)&s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
1090 return 0;
1093 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags)
1095 const char *ext;
1096 ElfW(Ehdr) ehdr;
1097 int fd, ret, size;
1099 /* find source file type with extension */
1100 ext = tcc_fileextension(filename);
1101 if (ext[0])
1102 ext++;
1104 #ifdef CONFIG_TCC_ASM
1105 /* if .S file, define __ASSEMBLER__ like gcc does */
1106 if (!strcmp(ext, "S"))
1107 tcc_define_symbol(s1, "__ASSEMBLER__", NULL);
1108 #endif
1110 /* open the file */
1111 ret = tcc_open(s1, filename);
1112 if (ret < 0) {
1113 if (flags & AFF_PRINT_ERROR)
1114 tcc_error_noabort("file '%s' not found", filename);
1115 return ret;
1118 /* update target deps */
1119 dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps,
1120 tcc_strdup(filename));
1122 if (flags & AFF_PREPROCESS) {
1123 ret = tcc_preprocess(s1);
1124 goto the_end;
1127 if (!ext[0] || !PATHCMP(ext, "c")) {
1128 /* C file assumed */
1129 ret = tcc_compile(s1);
1130 goto the_end;
1133 #ifdef CONFIG_TCC_ASM
1134 if (!strcmp(ext, "S")) {
1135 /* preprocessed assembler */
1136 ret = tcc_assemble(s1, 1);
1137 goto the_end;
1140 if (!strcmp(ext, "s")) {
1141 /* non preprocessed assembler */
1142 ret = tcc_assemble(s1, 0);
1143 goto the_end;
1145 #endif
1147 fd = file->fd;
1148 /* assume executable format: auto guess file type */
1149 size = read(fd, &ehdr, sizeof(ehdr));
1150 lseek(fd, 0, SEEK_SET);
1151 if (size <= 0) {
1152 tcc_error_noabort("could not read header");
1153 goto the_end;
1156 if (size == sizeof(ehdr) &&
1157 ehdr.e_ident[0] == ELFMAG0 &&
1158 ehdr.e_ident[1] == ELFMAG1 &&
1159 ehdr.e_ident[2] == ELFMAG2 &&
1160 ehdr.e_ident[3] == ELFMAG3) {
1162 /* do not display line number if error */
1163 file->line_num = 0;
1164 if (ehdr.e_type == ET_REL) {
1165 ret = tcc_load_object_file(s1, fd, 0);
1166 goto the_end;
1169 #ifndef TCC_TARGET_PE
1170 if (ehdr.e_type == ET_DYN) {
1171 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1172 void *h;
1173 h = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
1174 if (h)
1175 ret = 0;
1176 } else {
1177 ret = tcc_load_dll(s1, fd, filename,
1178 (flags & AFF_REFERENCED_DLL) != 0);
1180 goto the_end;
1182 #endif
1183 tcc_error_noabort("unrecognized ELF file");
1184 goto the_end;
1187 if (memcmp((char *)&ehdr, ARMAG, 8) == 0) {
1188 file->line_num = 0; /* do not display line number if error */
1189 ret = tcc_load_archive(s1, fd);
1190 goto the_end;
1193 #ifdef TCC_TARGET_COFF
1194 if (*(uint16_t *)(&ehdr) == COFF_C67_MAGIC) {
1195 ret = tcc_load_coff(s1, fd);
1196 goto the_end;
1198 #endif
1200 #ifdef TCC_TARGET_PE
1201 ret = pe_load_file(s1, filename, fd);
1202 #else
1203 /* as GNU ld, consider it is an ld script if not recognized */
1204 ret = tcc_load_ldscript(s1);
1205 #endif
1206 if (ret < 0)
1207 tcc_error_noabort("unrecognized file type");
1209 the_end:
1210 tcc_close();
1211 return ret;
1214 LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename)
1216 if (s->output_type == TCC_OUTPUT_PREPROCESS)
1217 return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR | AFF_PREPROCESS);
1218 else
1219 return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR);
1222 LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
1224 tcc_split_path(s, (void ***)&s->library_paths, &s->nb_library_paths, pathname);
1225 return 0;
1228 static int tcc_add_library_internal(TCCState *s, const char *fmt,
1229 const char *filename, int flags, char **paths, int nb_paths)
1231 char buf[1024];
1232 int i;
1234 for(i = 0; i < nb_paths; i++) {
1235 snprintf(buf, sizeof(buf), fmt, paths[i], filename);
1236 if (tcc_add_file_internal(s, buf, flags) == 0)
1237 return 0;
1239 return -1;
1242 #ifndef TCC_TARGET_PE
1243 /* find and load a dll. Return non zero if not found */
1244 /* XXX: add '-rpath' option support ? */
1245 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
1247 return tcc_add_library_internal(s, "%s/%s", filename, flags,
1248 s->library_paths, s->nb_library_paths);
1250 #endif
1252 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename)
1254 if (-1 == tcc_add_library_internal(s, "%s/%s",
1255 filename, 0, s->crt_paths, s->nb_crt_paths))
1256 tcc_error_noabort("file '%s' not found", filename);
1257 return 0;
1260 /* the library name is the same as the argument of the '-l' option */
1261 LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname)
1263 #ifdef TCC_TARGET_PE
1264 const char *libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL };
1265 const char **pp = s->static_link ? libs + 4 : libs;
1266 #else
1267 const char *libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL };
1268 const char **pp = s->static_link ? libs + 1 : libs;
1269 #endif
1270 while (*pp) {
1271 if (0 == tcc_add_library_internal(s, *pp,
1272 libraryname, 0, s->library_paths, s->nb_library_paths))
1273 return 0;
1274 ++pp;
1276 return -1;
1279 LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val)
1281 #ifdef TCC_TARGET_PE
1282 pe_putimport(s, 0, name, val);
1283 #else
1284 add_elf_sym(symtab_section, (uplong)val, 0,
1285 ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0,
1286 SHN_ABS, name);
1287 #endif
1288 return 0;
1291 LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
1293 s->output_type = output_type;
1295 if (!s->nostdinc) {
1296 /* default include paths */
1297 /* -isystem paths have already been handled */
1298 tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
1301 /* if bound checking, then add corresponding sections */
1302 #ifdef CONFIG_TCC_BCHECK
1303 if (s->do_bounds_check) {
1304 /* define symbol */
1305 tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL);
1306 /* create bounds sections */
1307 bounds_section = new_section(s, ".bounds",
1308 SHT_PROGBITS, SHF_ALLOC);
1309 lbounds_section = new_section(s, ".lbounds",
1310 SHT_PROGBITS, SHF_ALLOC);
1312 #endif
1314 if (s->char_is_unsigned) {
1315 tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL);
1318 /* add debug sections */
1319 if (s->do_debug) {
1320 /* stab symbols */
1321 stab_section = new_section(s, ".stab", SHT_PROGBITS, 0);
1322 stab_section->sh_entsize = sizeof(Stab_Sym);
1323 stabstr_section = new_section(s, ".stabstr", SHT_STRTAB, 0);
1324 put_elf_str(stabstr_section, "");
1325 stab_section->link = stabstr_section;
1326 /* put first entry */
1327 put_stabs("", 0, 0, 0, 0);
1330 #ifdef TCC_TARGET_PE
1331 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
1332 # ifdef _WIN32
1333 tcc_add_systemdir(s);
1334 # endif
1335 #else
1336 /* add libc crt1/crti objects */
1337 if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) &&
1338 !s->nostdlib) {
1339 if (output_type != TCC_OUTPUT_DLL)
1340 tcc_add_crt(s, "crt1.o");
1341 tcc_add_crt(s, "crti.o");
1343 #endif
1344 return 0;
1347 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1348 #define FD_INVERT 0x0002 /* invert value before storing */
1350 typedef struct FlagDef {
1351 uint16_t offset;
1352 uint16_t flags;
1353 const char *name;
1354 } FlagDef;
1356 static const FlagDef warning_defs[] = {
1357 { offsetof(TCCState, warn_unsupported), 0, "unsupported" },
1358 { offsetof(TCCState, warn_write_strings), 0, "write-strings" },
1359 { offsetof(TCCState, warn_error), 0, "error" },
1360 { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL,
1361 "implicit-function-declaration" },
1364 ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, int nb_flags,
1365 const char *name, int value)
1367 int i;
1368 const FlagDef *p;
1369 const char *r;
1371 r = name;
1372 if (r[0] == 'n' && r[1] == 'o' && r[2] == '-') {
1373 r += 3;
1374 value = !value;
1376 for(i = 0, p = flags; i < nb_flags; i++, p++) {
1377 if (!strcmp(r, p->name))
1378 goto found;
1380 return -1;
1381 found:
1382 if (p->flags & FD_INVERT)
1383 value = !value;
1384 *(int *)((uint8_t *)s + p->offset) = value;
1385 return 0;
1388 /* enable debug */
1389 LIBTCCAPI void tcc_enable_debug(TCCState *s)
1391 s->do_debug = 1;
1394 /* set/reset a warning */
1395 LIBTCCAPI int tcc_set_warning(TCCState *s, const char *warning_name, int value)
1397 int i;
1398 const FlagDef *p;
1400 if (!strcmp(warning_name, "all")) {
1401 for(i = 0, p = warning_defs; i < countof(warning_defs); i++, p++) {
1402 if (p->flags & WD_ALL)
1403 *(int *)((uint8_t *)s + p->offset) = 1;
1405 return 0;
1406 } else {
1407 return set_flag(s, warning_defs, countof(warning_defs),
1408 warning_name, value);
1412 static const FlagDef flag_defs[] = {
1413 { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
1414 { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
1415 { offsetof(TCCState, nocommon), FD_INVERT, "common" },
1416 { offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
1419 /* set/reset a flag */
1420 PUB_FUNC int tcc_set_flag(TCCState *s, const char *flag_name, int value)
1422 return set_flag(s, flag_defs, countof(flag_defs),
1423 flag_name, value);
1427 static int strstart(const char *str, const char *val, char **ptr)
1429 const char *p, *q;
1430 p = str;
1431 q = val;
1432 while (*q != '\0') {
1433 if (*p != *q)
1434 return 0;
1435 p++;
1436 q++;
1438 if (ptr)
1439 *ptr = (char *) p;
1440 return 1;
1444 /* Like strstart, but automatically takes into account that ld options can
1446 * - start with double or single dash (e.g. '--soname' or '-soname')
1447 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1448 * or '-Wl,-soname=x.so')
1450 * you provide `val` always in 'option[=]' form (no leading -)
1452 static int link_option(const char *str, const char *val, char **ptr)
1454 const char *p, *q;
1456 /* there should be 1 or 2 dashes */
1457 if (*str++ != '-')
1458 return 0;
1459 if (*str == '-')
1460 str++;
1462 /* then str & val should match (potentialy up to '=') */
1463 p = str;
1464 q = val;
1466 while (*q != '\0' && *q != '=') {
1467 if (*p != *q)
1468 return 0;
1469 p++;
1470 q++;
1473 /* '=' near eos means ',' or '=' is ok */
1474 if (*q == '=') {
1475 if (*p != ',' && *p != '=')
1476 return 0;
1477 p++;
1478 q++;
1481 if (ptr)
1482 *ptr = (char *) p;
1483 return 1;
1487 /* set linker options */
1488 PUB_FUNC const char * tcc_set_linker(TCCState *s, char *option, int multi)
1490 char *p = option;
1491 char *end;
1493 while (option && *option) {
1494 end = NULL;
1495 if (link_option(option, "Bsymbolic", &p)) {
1496 s->symbolic = TRUE;
1497 } else if (link_option(option, "nostdlib", &p)) {
1498 s->nostdlib = TRUE;
1499 } else if (link_option(option, "fini=", &p)) {
1500 s->fini_symbol = p;
1501 if (s->warn_unsupported)
1502 tcc_warning("ignoring -fini %s", p);
1503 } else if (link_option(option, "image-base=", &p)) {
1504 s->text_addr = strtoull(p, &end, 16);
1505 s->has_text_addr = 1;
1506 } else if (link_option(option, "init=", &p)) {
1507 s->init_symbol = p;
1508 if (s->warn_unsupported)
1509 tcc_warning("ignoring -init %s", p);
1510 } else if (link_option(option, "oformat=", &p)) {
1511 #if defined(TCC_TARGET_PE)
1512 if (strstart(p, "pe-", NULL)) {
1513 #else
1514 #if defined(TCC_TARGET_X86_64)
1515 if (strstart(p, "elf64-", NULL)) {
1516 #else
1517 if (strstart(p, "elf32-", NULL)) {
1518 #endif
1519 #endif
1520 s->output_format = TCC_OUTPUT_FORMAT_ELF;
1521 } else if (!strcmp(p, "binary")) {
1522 s->output_format = TCC_OUTPUT_FORMAT_BINARY;
1523 } else
1524 #ifdef TCC_TARGET_COFF
1525 if (!strcmp(p, "coff")) {
1526 s->output_format = TCC_OUTPUT_FORMAT_COFF;
1527 } else
1528 #endif
1530 return p;
1533 } else if (link_option(option, "rpath=", &p)) {
1534 s->rpath = p;
1535 } else if (link_option(option, "section-alignment=", &p)) {
1536 s->section_align = strtoul(p, &end, 16);
1537 } else if (link_option(option, "soname=", &p)) {
1538 s->soname = p;
1539 multi = 0;
1540 #ifdef TCC_TARGET_PE
1541 } else if (link_option(option, "file-alignment=", &p)) {
1542 s->pe_file_align = strtoul(p, &end, 16);
1543 } else if (link_option(option, "stack=", &p)) {
1544 s->pe_stack_size = strtoul(p, &end, 10);
1545 } else if (link_option(option, "subsystem=", &p)) {
1546 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1547 if (!strcmp(p, "native")) {
1548 s->pe_subsystem = 1;
1549 } else if (!strcmp(p, "console")) {
1550 s->pe_subsystem = 3;
1551 } else if (!strcmp(p, "gui")) {
1552 s->pe_subsystem = 2;
1553 } else if (!strcmp(p, "posix")) {
1554 s->pe_subsystem = 7;
1555 } else if (!strcmp(p, "efiapp")) {
1556 s->pe_subsystem = 10;
1557 } else if (!strcmp(p, "efiboot")) {
1558 s->pe_subsystem = 11;
1559 } else if (!strcmp(p, "efiruntime")) {
1560 s->pe_subsystem = 12;
1561 } else if (!strcmp(p, "efirom")) {
1562 s->pe_subsystem = 13;
1563 #elif defined(TCC_TARGET_ARM)
1564 if (!strcmp(p, "wince")) {
1565 s->pe_subsystem = 9;
1566 #endif
1567 } else {
1568 return p;
1570 #endif
1572 } else if (link_option(option, "Ttext=", &p)) {
1573 s->text_addr = strtoull(p, &end, 16);
1574 s->has_text_addr = 1;
1575 } else {
1576 char *comma_ptr = strchr(option, ',');
1577 if (comma_ptr)
1578 *comma_ptr = '\0';
1579 return option;
1582 if (multi) {
1583 option = NULL;
1584 p = strchr( (end) ? end : p, ',');
1585 if (p) {
1586 *p = 0; /* terminate last option */
1587 option = ++p;
1589 } else
1590 option = NULL;
1592 return NULL;
1595 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time)
1597 double tt;
1598 tt = (double)total_time / 1000000.0;
1599 if (tt < 0.001)
1600 tt = 0.001;
1601 if (total_bytes < 1)
1602 total_bytes = 1;
1603 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1604 tok_ident - TOK_IDENT, total_lines, total_bytes,
1605 tt, (int)(total_lines / tt),
1606 total_bytes / tt / 1000000.0);
1609 /* set CONFIG_TCCDIR at runtime */
1610 LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path)
1612 tcc_free(s->tcc_lib_path);
1613 s->tcc_lib_path = tcc_strdup(path);
1616 PUB_FUNC char *tcc_default_target(TCCState *s, const char *default_file)
1618 char buf[1024];
1619 char *ext;
1620 const char *name = "a";
1622 if (default_file && strcmp(default_file, "-"))
1623 name = tcc_basename(default_file);
1624 pstrcpy(buf, sizeof(buf), name);
1625 ext = tcc_fileextension(buf);
1626 #ifdef TCC_TARGET_PE
1627 if (s->output_type == TCC_OUTPUT_DLL)
1628 strcpy(ext, ".dll");
1629 else
1630 if (s->output_type == TCC_OUTPUT_EXE)
1631 strcpy(ext, ".exe");
1632 else
1633 #endif
1634 if (( (s->output_type == TCC_OUTPUT_OBJ && !s->reloc_output) ||
1635 (s->output_type == TCC_OUTPUT_PREPROCESS) )
1636 && *ext)
1637 strcpy(ext, ".o");
1638 else
1639 strcpy(buf, "a.out");
1641 return tcc_strdup(buf);
1645 PUB_FUNC void tcc_gen_makedeps(TCCState *s, const char *target, const char *filename)
1647 FILE *depout;
1648 char buf[1024], *ext;
1649 int i;
1651 if (!filename) {
1652 /* compute filename automatically
1653 * dir/file.o -> dir/file.d */
1654 pstrcpy(buf, sizeof(buf), target);
1655 ext = tcc_fileextension(buf);
1656 pstrcpy(ext, sizeof(buf) - (ext-buf), ".d");
1657 filename = buf;
1660 if (s->verbose)
1661 printf("<- %s\n", filename);
1663 /* XXX return err codes instead of error() ? */
1664 depout = fopen(filename, "w");
1665 if (!depout)
1666 tcc_error("could not open '%s'", filename);
1668 fprintf(depout, "%s : \\\n", target);
1669 for (i=0; i<s->nb_target_deps; ++i)
1670 fprintf(depout, " %s \\\n", s->target_deps[i]);
1671 fprintf(depout, "\n");
1672 fclose(depout);