2 * TCC - Tiny C Compiler
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
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 /********************************************************/
42 #ifdef TCC_TARGET_I386
51 #ifdef TCC_TARGET_X86_64
52 #include "x86_64-gen.c"
56 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
60 #ifdef TCC_TARGET_COFF
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");
80 /********************************************************/
83 // GCC appears to use '/' for relative paths and '\\' for absolute paths on Windows
84 static char *normalize_slashes(char *path)
88 for (p = path+2; *p; ++p)
92 for (p = path; *p; ++p)
99 static HMODULE tcc_module;
101 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
102 static void tcc_set_lib_path_w32(TCCState *s)
105 GetModuleFileNameA(tcc_module, path, sizeof path);
106 p = tcc_basename(normalize_slashes(strlwr(path)));
107 if (p - 5 > path && 0 == strncmp(p - 5, "/bin/", 5))
112 tcc_set_lib_path(s, path);
116 static void tcc_add_systemdir(TCCState *s)
119 GetSystemDirectory(buf, sizeof buf);
120 tcc_add_library_path(s, normalize_slashes(buf));
124 #ifndef CONFIG_TCC_STATIC
125 void dlclose(void *p)
127 FreeLibrary((HMODULE)p);
132 BOOL WINAPI DllMain (HANDLE hDll, DWORD dwReason, LPVOID lpReserved)
134 if (DLL_PROCESS_ATTACH == dwReason)
141 /********************************************************/
142 /* copy a string and truncate it. */
143 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s)
150 q_end = buf + buf_size - 1;
162 /* strcat and truncate. */
163 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s)
168 pstrcpy(buf + len, buf_size - len, s);
172 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num)
174 memcpy(out, in, num);
179 /* extract the basename of a file */
180 PUB_FUNC char *tcc_basename(const char *name)
182 char *p = strchr(name, 0);
183 while (p > name && !IS_DIRSEP(p[-1]))
188 /* extract extension part of a file
190 * (if no extension, return pointer to end-of-string)
192 PUB_FUNC char *tcc_fileextension (const char *name)
194 char *b = tcc_basename(name);
195 char *e = strrchr(b, '.');
196 return e ? e : strchr(b, 0);
199 /********************************************************/
200 /* memory management */
207 ST_DATA int mem_cur_size;
208 ST_DATA int mem_max_size;
209 unsigned malloc_usable_size(void*);
212 PUB_FUNC void tcc_free(void *ptr)
215 mem_cur_size -= malloc_usable_size(ptr);
220 PUB_FUNC void *tcc_malloc(unsigned long size)
225 tcc_error("memory full");
227 mem_cur_size += malloc_usable_size(ptr);
228 if (mem_cur_size > mem_max_size)
229 mem_max_size = mem_cur_size;
234 PUB_FUNC void *tcc_mallocz(unsigned long size)
237 ptr = tcc_malloc(size);
238 memset(ptr, 0, size);
242 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size)
246 mem_cur_size -= malloc_usable_size(ptr);
248 ptr1 = realloc(ptr, size);
250 tcc_error("memory full");
252 /* NOTE: count not correct if alloc error, but not critical */
253 mem_cur_size += malloc_usable_size(ptr1);
254 if (mem_cur_size > mem_max_size)
255 mem_max_size = mem_cur_size;
260 PUB_FUNC char *tcc_strdup(const char *str)
263 ptr = tcc_malloc(strlen(str) + 1);
268 PUB_FUNC void tcc_memstats(void)
271 printf("memory: %d bytes, max = %d bytes\n", mem_cur_size, mem_max_size);
275 #define free(p) use_tcc_free(p)
276 #define malloc(s) use_tcc_malloc(s)
277 #define realloc(p, s) use_tcc_realloc(p, s)
279 /********************************************************/
282 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data)
289 /* every power of two we double array size */
290 if ((nb & (nb - 1)) == 0) {
295 pp = tcc_realloc(pp, nb_alloc * sizeof(void *));
302 ST_FUNC void dynarray_reset(void *pp, int *n)
305 for (p = *(void***)pp; *n; ++p, --*n)
308 tcc_free(*(void**)pp);
312 static void tcc_split_path(TCCState *s, void ***p_ary, int *p_nb_ary, const char *in)
320 for (p = in; c = *p, c != '\0' && c != PATHSEP; ++p) {
321 if (c == '{' && p[1] && p[2] == '}') {
324 cstr_cat(&str, s->tcc_lib_path);
329 cstr_ccat(&str, '\0');
330 dynarray_add(p_ary, p_nb_ary, str.data);
335 /********************************************************/
337 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags)
341 sec = tcc_mallocz(sizeof(Section) + strlen(name));
342 strcpy(sec->name, name);
343 sec->sh_type = sh_type;
344 sec->sh_flags = sh_flags;
352 sec->sh_addralign = 4;
355 sec->sh_addralign = 1;
358 sec->sh_addralign = 32; /* default conservative alignment */
362 if (sh_flags & SHF_PRIVATE) {
363 dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec);
365 sec->sh_num = s1->nb_sections;
366 dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec);
372 static void free_section(Section *s)
377 /* realloc section and set its content to zero */
378 ST_FUNC void section_realloc(Section *sec, unsigned long new_size)
383 size = sec->data_allocated;
386 while (size < new_size)
388 data = tcc_realloc(sec->data, size);
389 memset(data + sec->data_allocated, 0, size - sec->data_allocated);
391 sec->data_allocated = size;
394 /* reserve at least 'size' bytes in section 'sec' from
396 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size)
398 unsigned long offset, offset1;
400 offset = sec->data_offset;
401 offset1 = offset + size;
402 if (offset1 > sec->data_allocated)
403 section_realloc(sec, offset1);
404 sec->data_offset = offset1;
405 return sec->data + offset;
408 /* reserve at least 'size' bytes from section start */
409 ST_FUNC void section_reserve(Section *sec, unsigned long size)
411 if (size > sec->data_allocated)
412 section_realloc(sec, size);
413 if (size > sec->data_offset)
414 sec->data_offset = size;
417 /* return a reference to a section, and create it if it does not
419 ST_FUNC Section *find_section(TCCState *s1, const char *name)
423 for(i = 1; i < s1->nb_sections; i++) {
424 sec = s1->sections[i];
425 if (!strcmp(name, sec->name))
428 /* sections are created as PROGBITS */
429 return new_section(s1, name, SHT_PROGBITS, SHF_ALLOC);
432 /* update sym->c so that it points to an external symbol in section
433 'section' with value 'value' */
434 ST_FUNC void put_extern_sym2(Sym *sym, Section *section,
435 addr_t value, unsigned long size,
436 int can_add_underscore)
438 int sym_type, sym_bind, sh_num, info, other;
445 else if (section == SECTION_ABS)
448 sh_num = section->sh_num;
450 if ((sym->type.t & VT_BTYPE) == VT_FUNC) {
452 } else if ((sym->type.t & VT_BTYPE) == VT_VOID) {
453 sym_type = STT_NOTYPE;
455 sym_type = STT_OBJECT;
458 if (sym->type.t & VT_STATIC)
459 sym_bind = STB_LOCAL;
461 if (sym->type.t & VT_WEAK)
464 sym_bind = STB_GLOBAL;
468 name = get_tok_str(sym->v, NULL);
469 #ifdef CONFIG_TCC_BCHECK
470 if (tcc_state->do_bounds_check) {
473 /* XXX: avoid doing that for statics ? */
474 /* if bound checking is activated, we change some function
475 names by adding the "__bound" prefix */
478 /* XXX: we rely only on malloc hooks */
491 strcpy(buf, "__bound_");
501 if (sym->type.t & VT_EXPORT)
503 if (sym_type == STT_FUNC && sym->type.ref) {
504 int attr = sym->type.ref->r;
505 if (FUNC_EXPORT(attr))
507 if (FUNC_CALL(attr) == FUNC_STDCALL && can_add_underscore) {
508 sprintf(buf1, "_%s@%d", name, FUNC_ARGS(attr) * PTR_SIZE);
511 can_add_underscore = 0;
514 if (find_elf_sym(tcc_state->dynsymtab_section, name))
516 if (sym->type.t & VT_IMPORT)
520 if (tcc_state->leading_underscore && can_add_underscore) {
522 pstrcpy(buf1 + 1, sizeof(buf1) - 1, name);
525 if (sym->asm_label) {
526 name = sym->asm_label;
528 info = ELFW(ST_INFO)(sym_bind, sym_type);
529 sym->c = add_elf_sym(symtab_section, value, size, info, other, sh_num, name);
531 esym = &((ElfW(Sym) *)symtab_section->data)[sym->c];
532 esym->st_value = value;
533 esym->st_size = size;
534 esym->st_shndx = sh_num;
538 ST_FUNC void put_extern_sym(Sym *sym, Section *section,
539 addr_t value, unsigned long size)
541 put_extern_sym2(sym, section, value, size, 1);
544 /* add a new relocation entry to symbol 'sym' in section 's' */
545 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type)
550 put_extern_sym(sym, NULL, 0, 0);
553 /* now we can add ELF relocation info */
554 put_elf_reloc(symtab_section, s, offset, type, c);
557 /********************************************************/
559 static void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap)
563 vsnprintf(buf + len, buf_size - len, fmt, ap);
566 static void strcat_printf(char *buf, int buf_size, const char *fmt, ...)
570 strcat_vprintf(buf, buf_size, fmt, ap);
574 static void error1(TCCState *s1, int is_warning, const char *fmt, va_list ap)
577 BufferedFile **pf, *f;
580 /* use upper file if inline ":asm:" or token ":paste:" */
581 for (f = file; f && f->filename[0] == ':'; f = f->prev)
584 for(pf = s1->include_stack; pf < s1->include_stack_ptr; pf++)
585 strcat_printf(buf, sizeof(buf), "In file included from %s:%d:\n",
586 (*pf)->filename, (*pf)->line_num);
587 if (f->line_num > 0) {
588 strcat_printf(buf, sizeof(buf), "%s:%d: ",
589 f->filename, f->line_num);
591 strcat_printf(buf, sizeof(buf), "%s: ",
595 strcat_printf(buf, sizeof(buf), "tcc: ");
598 strcat_printf(buf, sizeof(buf), "warning: ");
600 strcat_printf(buf, sizeof(buf), "error: ");
601 strcat_vprintf(buf, sizeof(buf), fmt, ap);
603 if (!s1->error_func) {
604 /* default case: stderr */
605 fprintf(stderr, "%s\n", buf);
607 s1->error_func(s1->error_opaque, buf);
609 if (!is_warning || s1->warn_error)
613 LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque,
614 void (*error_func)(void *opaque, const char *msg))
616 s->error_opaque = error_opaque;
617 s->error_func = error_func;
620 /* error without aborting current compilation */
621 PUB_FUNC void tcc_error_noabort(const char *fmt, ...)
623 TCCState *s1 = tcc_state;
627 error1(s1, 0, fmt, ap);
631 PUB_FUNC void tcc_error(const char *fmt, ...)
633 TCCState *s1 = tcc_state;
637 error1(s1, 0, fmt, ap);
639 /* better than nothing: in some cases, we accept to handle errors */
640 if (s1->error_set_jmp_enabled) {
641 longjmp(s1->error_jmp_buf, 1);
643 /* XXX: eliminate this someday */
648 PUB_FUNC void tcc_warning(const char *fmt, ...)
650 TCCState *s1 = tcc_state;
657 error1(s1, 1, fmt, ap);
661 /********************************************************/
664 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen)
667 int buflen = initlen ? initlen : IO_BUF_SIZE;
669 bf = tcc_malloc(sizeof(BufferedFile) + buflen);
670 bf->buf_ptr = bf->buffer;
671 bf->buf_end = bf->buffer + initlen;
672 bf->buf_end[0] = CH_EOB; /* put eob symbol */
673 pstrcpy(bf->filename, sizeof(bf->filename), filename);
675 normalize_slashes(bf->filename);
678 bf->ifndef_macro = 0;
679 bf->ifdef_stack_ptr = s1->ifdef_stack_ptr;
685 ST_FUNC void tcc_close(void)
687 BufferedFile *bf = file;
690 total_lines += bf->line_num;
696 ST_FUNC int tcc_open(TCCState *s1, const char *filename)
699 if (strcmp(filename, "-") == 0)
700 fd = 0, filename = "stdin";
702 fd = open(filename, O_RDONLY | O_BINARY);
703 if ((s1->verbose == 2 && fd >= 0) || s1->verbose == 3)
704 printf("%s %*s%s\n", fd < 0 ? "nf":"->",
705 (int)(s1->include_stack_ptr - s1->include_stack), "", filename);
709 tcc_open_bf(s1, filename, 0);
714 /* compile the C file opened in 'file'. Return non zero if errors. */
715 static int tcc_compile(TCCState *s1)
720 volatile int section_sym;
723 printf("%s: **** new file\n", file->filename);
727 cur_text_section = NULL;
729 anon_sym = SYM_FIRST_ANOM;
731 /* file info: full path + filename */
732 section_sym = 0; /* avoid warning */
734 section_sym = put_elf_sym(symtab_section, 0, 0,
735 ELFW(ST_INFO)(STB_LOCAL, STT_SECTION), 0,
736 text_section->sh_num, NULL);
737 getcwd(buf, sizeof(buf));
739 normalize_slashes(buf);
741 pstrcat(buf, sizeof(buf), "/");
742 put_stabs_r(buf, N_SO, 0, 0,
743 text_section->data_offset, text_section, section_sym);
744 put_stabs_r(file->filename, N_SO, 0, 0,
745 text_section->data_offset, text_section, section_sym);
747 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
748 symbols can be safely used */
749 put_elf_sym(symtab_section, 0, 0,
750 ELFW(ST_INFO)(STB_LOCAL, STT_FILE), 0,
751 SHN_ABS, file->filename);
753 /* define some often used types */
756 char_pointer_type.t = VT_BYTE;
757 mk_pointer(&char_pointer_type);
760 size_type.t = VT_INT;
762 size_type.t = VT_LLONG;
765 func_old_type.t = VT_FUNC;
766 func_old_type.ref = sym_push(SYM_FIELD, &int_type, FUNC_CDECL, FUNC_OLD);
767 #ifdef TCC_TARGET_ARM
772 /* define 'void *alloca(unsigned int)' builtin function */
777 sym = sym_push(p, mk_pointer(VT_VOID), FUNC_CDECL, FUNC_NEW);
778 s1 = sym_push(SYM_FIELD, VT_UNSIGNED | VT_INT, 0, 0);
781 sym_push(TOK_alloca, VT_FUNC | (p << VT_STRUCT_SHIFT), VT_CONST, 0);
785 define_start = define_stack;
788 if (setjmp(s1->error_jmp_buf) == 0) {
790 s1->error_set_jmp_enabled = 1;
792 ch = file->buf_ptr[0];
793 tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
794 parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM;
799 expect("declaration");
801 tcc_warning("internal compiler error: vstack leak? (%d)", vtop - pvtop);
803 /* end of translation unit info */
805 put_stabs_r(NULL, N_SO, 0, 0,
806 text_section->data_offset, text_section, section_sym);
810 s1->error_set_jmp_enabled = 0;
812 /* reset define stack, but leave -Dsymbols (may be incorrect if
813 they are undefined) */
814 free_defines(define_start);
816 gen_inline_functions();
818 sym_pop(&global_stack, NULL);
819 sym_pop(&local_stack, NULL);
821 return s1->nb_errors != 0 ? -1 : 0;
824 LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str)
829 tcc_open_bf(s, "<string>", len);
830 memcpy(file->buffer, str, len);
831 ret = tcc_compile(s);
836 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
837 LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value)
844 len2 = strlen(value);
846 /* init file structure */
847 tcc_open_bf(s1, "<define>", len1 + len2 + 1);
848 memcpy(file->buffer, sym, len1);
849 file->buffer[len1] = ' ';
850 memcpy(file->buffer + len1 + 1, value, len2);
852 /* parse with define parser */
853 ch = file->buf_ptr[0];
860 /* undefine a preprocessor symbol */
861 LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym)
865 ts = tok_alloc(sym, strlen(sym));
866 s = define_find(ts->tok);
867 /* undefine symbol by putting an invalid name */
872 /* cleanup all static data used during compilation */
873 static void tcc_cleanup(void)
876 if (NULL == tcc_state)
880 /* free -D defines */
884 n = tok_ident - TOK_IDENT;
885 for(i = 0; i < n; i++)
886 tcc_free(table_ident[i]);
887 tcc_free(table_ident);
890 dynarray_reset(&sym_pools, &nb_sym_pools);
893 /* reset symbol stack */
894 sym_free_first = NULL;
895 /* cleanup from error/setjmp */
899 LIBTCCAPI TCCState *tcc_new(void)
907 s = tcc_mallocz(sizeof(TCCState));
912 tcc_set_lib_path_w32(s);
914 tcc_set_lib_path(s, CONFIG_TCCDIR);
916 s->output_type = TCC_OUTPUT_MEMORY;
918 s->include_stack_ptr = s->include_stack;
920 /* we add dummy defines for some special macros to speed up tests
921 and to have working defined() */
922 define_push(TOK___LINE__, MACRO_OBJ, NULL, NULL);
923 define_push(TOK___FILE__, MACRO_OBJ, NULL, NULL);
924 define_push(TOK___DATE__, MACRO_OBJ, NULL, NULL);
925 define_push(TOK___TIME__, MACRO_OBJ, NULL, NULL);
927 /* define __TINYC__ 92X */
928 sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c);
929 sprintf(buffer, "%d", a*10000 + b*100 + c);
930 tcc_define_symbol(s, "__TINYC__", buffer);
932 /* standard defines */
933 tcc_define_symbol(s, "__STDC__", NULL);
934 tcc_define_symbol(s, "__STDC_VERSION__", "199901L");
935 tcc_define_symbol(s, "__STDC_HOSTED__", NULL);
938 #if defined(TCC_TARGET_I386)
939 tcc_define_symbol(s, "__i386__", NULL);
940 tcc_define_symbol(s, "__i386", NULL);
941 tcc_define_symbol(s, "i386", NULL);
942 #elif defined(TCC_TARGET_X86_64)
943 tcc_define_symbol(s, "__x86_64__", NULL);
944 #elif defined(TCC_TARGET_ARM)
945 tcc_define_symbol(s, "__ARM_ARCH_4__", NULL);
946 tcc_define_symbol(s, "__arm_elf__", NULL);
947 tcc_define_symbol(s, "__arm_elf", NULL);
948 tcc_define_symbol(s, "arm_elf", NULL);
949 tcc_define_symbol(s, "__arm__", NULL);
950 tcc_define_symbol(s, "__arm", NULL);
951 tcc_define_symbol(s, "arm", NULL);
952 tcc_define_symbol(s, "__APCS_32__", NULL);
953 #if defined(TCC_ARM_HARDFLOAT)
954 tcc_define_symbol(s, "__ARM_PCS_VFP", NULL);
959 tcc_define_symbol(s, "_WIN32", NULL);
960 # ifdef TCC_TARGET_X86_64
961 tcc_define_symbol(s, "_WIN64", NULL);
964 tcc_define_symbol(s, "__unix__", NULL);
965 tcc_define_symbol(s, "__unix", NULL);
966 tcc_define_symbol(s, "unix", NULL);
967 # if defined(__linux)
968 tcc_define_symbol(s, "__linux__", NULL);
969 tcc_define_symbol(s, "__linux", NULL);
971 # if defined(__FreeBSD__)
973 tcc_define_symbol(s, "__FreeBSD__", str( __FreeBSD__));
976 # if defined(__FreeBSD_kernel__)
977 tcc_define_symbol(s, "__FreeBSD_kernel__", NULL);
981 /* TinyCC & gcc defines */
982 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
983 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long");
984 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long");
986 tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long");
987 tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long");
991 tcc_define_symbol(s, "__WCHAR_TYPE__", "unsigned short");
993 tcc_define_symbol(s, "__WCHAR_TYPE__", "int");
996 #ifndef TCC_TARGET_PE
998 tcc_define_symbol(s, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
999 tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1000 /* default library paths */
1001 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
1002 /* paths for crt objects */
1003 tcc_split_path(s, (void ***)&s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX);
1006 /* no section zero */
1007 dynarray_add((void ***)&s->sections, &s->nb_sections, NULL);
1009 /* create standard sections */
1010 text_section = new_section(s, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR);
1011 data_section = new_section(s, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE);
1012 bss_section = new_section(s, ".bss", SHT_NOBITS, SHF_ALLOC | SHF_WRITE);
1014 /* symbols are always generated for linking stage */
1015 symtab_section = new_symtab(s, ".symtab", SHT_SYMTAB, 0,
1017 ".hashtab", SHF_PRIVATE);
1018 strtab_section = symtab_section->link;
1019 s->symtab = symtab_section;
1021 /* private symbol table for dynamic symbols */
1022 s->dynsymtab_section = new_symtab(s, ".dynsymtab", SHT_SYMTAB, SHF_PRIVATE,
1024 ".dynhashtab", SHF_PRIVATE);
1025 s->alacarte_link = 1;
1027 s->section_align = ELF_PAGE_SIZE;
1029 #ifdef CHAR_IS_UNSIGNED
1030 s->char_is_unsigned = 1;
1032 /* enable this if you want symbols with leading underscore on windows: */
1033 #if 0 /* def TCC_TARGET_PE */
1034 s->leading_underscore = 1;
1036 #ifdef TCC_TARGET_I386
1042 LIBTCCAPI void tcc_delete(TCCState *s1)
1048 /* free all sections */
1049 for(i = 1; i < s1->nb_sections; i++)
1050 free_section(s1->sections[i]);
1051 dynarray_reset(&s1->sections, &s1->nb_sections);
1053 for(i = 0; i < s1->nb_priv_sections; i++)
1054 free_section(s1->priv_sections[i]);
1055 dynarray_reset(&s1->priv_sections, &s1->nb_priv_sections);
1057 /* free any loaded DLLs */
1058 #ifdef TCC_IS_NATIVE
1059 for ( i = 0; i < s1->nb_loaded_dlls; i++) {
1060 DLLReference *ref = s1->loaded_dlls[i];
1062 dlclose(ref->handle);
1066 /* free loaded dlls array */
1067 dynarray_reset(&s1->loaded_dlls, &s1->nb_loaded_dlls);
1069 /* free library paths */
1070 dynarray_reset(&s1->library_paths, &s1->nb_library_paths);
1071 dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths);
1073 /* free include paths */
1074 dynarray_reset(&s1->cached_includes, &s1->nb_cached_includes);
1075 dynarray_reset(&s1->include_paths, &s1->nb_include_paths);
1076 dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths);
1078 tcc_free(s1->tcc_lib_path);
1079 tcc_free(s1->soname);
1080 tcc_free(s1->rpath);
1081 tcc_free(s1->init_symbol);
1082 tcc_free(s1->fini_symbol);
1083 tcc_free(s1->outfile);
1084 tcc_free(s1->deps_outfile);
1085 dynarray_reset(&s1->files, &s1->nb_files);
1086 dynarray_reset(&s1->target_deps, &s1->nb_target_deps);
1088 #ifdef TCC_IS_NATIVE
1089 # ifdef HAVE_SELINUX
1090 munmap (s1->write_mem, s1->mem_size);
1091 munmap (s1->runtime_mem, s1->mem_size);
1093 tcc_free(s1->runtime_mem);
1100 LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname)
1102 tcc_split_path(s, (void ***)&s->include_paths, &s->nb_include_paths, pathname);
1106 LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
1108 tcc_split_path(s, (void ***)&s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
1112 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags)
1118 /* find source file type with extension */
1119 ext = tcc_fileextension(filename);
1123 #ifdef CONFIG_TCC_ASM
1124 /* if .S file, define __ASSEMBLER__ like gcc does */
1125 if (!strcmp(ext, "S"))
1126 tcc_define_symbol(s1, "__ASSEMBLER__", NULL);
1130 ret = tcc_open(s1, filename);
1132 if (flags & AFF_PRINT_ERROR)
1133 tcc_error_noabort("file '%s' not found", filename);
1137 /* update target deps */
1138 dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps,
1139 tcc_strdup(filename));
1141 if (flags & AFF_PREPROCESS) {
1142 ret = tcc_preprocess(s1);
1146 if (!ext[0] || !PATHCMP(ext, "c")) {
1147 /* C file assumed */
1148 ret = tcc_compile(s1);
1152 #ifdef CONFIG_TCC_ASM
1153 if (!strcmp(ext, "S")) {
1154 /* preprocessed assembler */
1155 ret = tcc_assemble(s1, 1);
1159 if (!strcmp(ext, "s")) {
1160 /* non preprocessed assembler */
1161 ret = tcc_assemble(s1, 0);
1167 /* assume executable format: auto guess file type */
1168 size = read(fd, &ehdr, sizeof(ehdr));
1169 lseek(fd, 0, SEEK_SET);
1171 tcc_error_noabort("could not read header");
1175 if (size == sizeof(ehdr) &&
1176 ehdr.e_ident[0] == ELFMAG0 &&
1177 ehdr.e_ident[1] == ELFMAG1 &&
1178 ehdr.e_ident[2] == ELFMAG2 &&
1179 ehdr.e_ident[3] == ELFMAG3) {
1181 /* do not display line number if error */
1183 if (ehdr.e_type == ET_REL) {
1184 ret = tcc_load_object_file(s1, fd, 0);
1188 #ifndef TCC_TARGET_PE
1189 if (ehdr.e_type == ET_DYN) {
1190 if (s1->output_type == TCC_OUTPUT_MEMORY) {
1191 #ifdef TCC_IS_NATIVE
1193 h = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
1198 ret = tcc_load_dll(s1, fd, filename,
1199 (flags & AFF_REFERENCED_DLL) != 0);
1204 tcc_error_noabort("unrecognized ELF file");
1208 if (memcmp((char *)&ehdr, ARMAG, 8) == 0) {
1209 file->line_num = 0; /* do not display line number if error */
1210 ret = tcc_load_archive(s1, fd);
1214 #ifdef TCC_TARGET_COFF
1215 if (*(uint16_t *)(&ehdr) == COFF_C67_MAGIC) {
1216 ret = tcc_load_coff(s1, fd);
1221 #ifdef TCC_TARGET_PE
1222 ret = pe_load_file(s1, filename, fd);
1224 /* as GNU ld, consider it is an ld script if not recognized */
1225 ret = tcc_load_ldscript(s1);
1228 tcc_error_noabort("unrecognized file type");
1235 LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename)
1237 if (s->output_type == TCC_OUTPUT_PREPROCESS)
1238 return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR | AFF_PREPROCESS);
1240 return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR);
1243 LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
1245 tcc_split_path(s, (void ***)&s->library_paths, &s->nb_library_paths, pathname);
1249 static int tcc_add_library_internal(TCCState *s, const char *fmt,
1250 const char *filename, int flags, char **paths, int nb_paths)
1255 for(i = 0; i < nb_paths; i++) {
1256 snprintf(buf, sizeof(buf), fmt, paths[i], filename);
1257 if (tcc_add_file_internal(s, buf, flags) == 0)
1263 /* find and load a dll. Return non zero if not found */
1264 /* XXX: add '-rpath' option support ? */
1265 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
1267 return tcc_add_library_internal(s, "%s/%s", filename, flags,
1268 s->library_paths, s->nb_library_paths);
1271 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename)
1273 if (-1 == tcc_add_library_internal(s, "%s/%s",
1274 filename, 0, s->crt_paths, s->nb_crt_paths))
1275 tcc_error_noabort("file '%s' not found", filename);
1279 /* the library name is the same as the argument of the '-l' option */
1280 LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname)
1282 #ifdef TCC_TARGET_PE
1283 const char *libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL };
1284 const char **pp = s->static_link ? libs + 4 : libs;
1286 const char *libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL };
1287 const char **pp = s->static_link ? libs + 1 : libs;
1290 if (0 == tcc_add_library_internal(s, *pp,
1291 libraryname, 0, s->library_paths, s->nb_library_paths))
1298 LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val)
1300 #ifdef TCC_TARGET_PE
1301 /* On x86_64 'val' might not be reachable with a 32bit offset.
1302 So it is handled here as if it were in a DLL. */
1303 pe_putimport(s, 0, name, (uintptr_t)val);
1305 /* XXX: Same problem on linux but currently "solved" elsewhere
1306 via the rather dirty 'runtime_plt_and_got' hack. */
1307 add_elf_sym(symtab_section, (uintptr_t)val, 0,
1308 ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0,
1314 LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type)
1316 s->output_type = output_type;
1319 /* default include paths */
1320 /* -isystem paths have already been handled */
1321 tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS);
1324 /* if bound checking, then add corresponding sections */
1325 #ifdef CONFIG_TCC_BCHECK
1326 if (s->do_bounds_check) {
1328 tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL);
1329 /* create bounds sections */
1330 bounds_section = new_section(s, ".bounds",
1331 SHT_PROGBITS, SHF_ALLOC);
1332 lbounds_section = new_section(s, ".lbounds",
1333 SHT_PROGBITS, SHF_ALLOC);
1337 if (s->char_is_unsigned) {
1338 tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL);
1341 /* add debug sections */
1344 stab_section = new_section(s, ".stab", SHT_PROGBITS, 0);
1345 stab_section->sh_entsize = sizeof(Stab_Sym);
1346 stabstr_section = new_section(s, ".stabstr", SHT_STRTAB, 0);
1347 put_elf_str(stabstr_section, "");
1348 stab_section->link = stabstr_section;
1349 /* put first entry */
1350 put_stabs("", 0, 0, 0, 0);
1353 #ifdef TCC_TARGET_PE
1354 tcc_add_library_path(s, CONFIG_TCC_LIBPATHS);
1356 tcc_add_systemdir(s);
1359 /* add libc crt1/crti objects */
1360 if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) &&
1362 if (output_type != TCC_OUTPUT_DLL)
1363 tcc_add_crt(s, "crt1.o");
1364 tcc_add_crt(s, "crti.o");
1370 LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path)
1372 tcc_free(s->tcc_lib_path);
1373 s->tcc_lib_path = tcc_strdup(path);
1376 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1377 #define FD_INVERT 0x0002 /* invert value before storing */
1379 typedef struct FlagDef {
1385 static const FlagDef warning_defs[] = {
1386 { offsetof(TCCState, warn_unsupported), 0, "unsupported" },
1387 { offsetof(TCCState, warn_write_strings), 0, "write-strings" },
1388 { offsetof(TCCState, warn_error), 0, "error" },
1389 { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL,
1390 "implicit-function-declaration" },
1393 ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, int nb_flags,
1394 const char *name, int value)
1401 if (r[0] == 'n' && r[1] == 'o' && r[2] == '-') {
1405 for(i = 0, p = flags; i < nb_flags; i++, p++) {
1406 if (!strcmp(r, p->name))
1411 if (p->flags & FD_INVERT)
1413 *(int *)((uint8_t *)s + p->offset) = value;
1417 /* set/reset a warning */
1418 static int tcc_set_warning(TCCState *s, const char *warning_name, int value)
1423 if (!strcmp(warning_name, "all")) {
1424 for(i = 0, p = warning_defs; i < countof(warning_defs); i++, p++) {
1425 if (p->flags & WD_ALL)
1426 *(int *)((uint8_t *)s + p->offset) = 1;
1430 return set_flag(s, warning_defs, countof(warning_defs),
1431 warning_name, value);
1435 static const FlagDef flag_defs[] = {
1436 { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
1437 { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
1438 { offsetof(TCCState, nocommon), FD_INVERT, "common" },
1439 { offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
1442 /* set/reset a flag */
1443 static int tcc_set_flag(TCCState *s, const char *flag_name, int value)
1445 return set_flag(s, flag_defs, countof(flag_defs),
1450 static int strstart(const char *val, const char **str)
1465 /* Like strstart, but automatically takes into account that ld options can
1467 * - start with double or single dash (e.g. '--soname' or '-soname')
1468 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1469 * or '-Wl,-soname=x.so')
1471 * you provide `val` always in 'option[=]' form (no leading -)
1473 static int link_option(const char *str, const char *val, const char **ptr)
1477 /* there should be 1 or 2 dashes */
1483 /* then str & val should match (potentialy up to '=') */
1487 while (*q != '\0' && *q != '=') {
1494 /* '=' near eos means ',' or '=' is ok */
1496 if (*p != ',' && *p != '=')
1507 static const char *skip_linker_arg(const char **str)
1509 const char *s1 = *str;
1510 const char *s2 = strchr(s1, ',');
1511 *str = s2 ? s2++ : (s2 = s1 + strlen(s1));
1515 static char *copy_linker_arg(const char *p)
1518 skip_linker_arg(&q);
1519 return pstrncpy(tcc_malloc(q - p + 1), p, q - p);
1522 /* set linker options */
1523 static int tcc_set_linker(TCCState *s, const char *option)
1525 while (option && *option) {
1527 const char *p = option;
1531 if (link_option(option, "Bsymbolic", &p)) {
1533 } else if (link_option(option, "nostdlib", &p)) {
1535 } else if (link_option(option, "fini=", &p)) {
1536 s->fini_symbol = copy_linker_arg(p);
1538 } else if (link_option(option, "image-base=", &p)
1539 || link_option(option, "Ttext=", &p)) {
1540 s->text_addr = strtoull(p, &end, 16);
1541 s->has_text_addr = 1;
1542 } else if (link_option(option, "init=", &p)) {
1543 s->init_symbol = copy_linker_arg(p);
1545 } else if (link_option(option, "oformat=", &p)) {
1546 #if defined(TCC_TARGET_PE)
1547 if (strstart("pe-", &p)) {
1548 #elif defined(TCC_TARGET_X86_64)
1549 if (strstart("elf64-", &p)) {
1551 if (strstart("elf32-", &p)) {
1553 s->output_format = TCC_OUTPUT_FORMAT_ELF;
1554 } else if (!strcmp(p, "binary")) {
1555 s->output_format = TCC_OUTPUT_FORMAT_BINARY;
1556 #ifdef TCC_TARGET_COFF
1557 } else if (!strcmp(p, "coff")) {
1558 s->output_format = TCC_OUTPUT_FORMAT_COFF;
1563 } else if (link_option(option, "rpath=", &p)) {
1564 s->rpath = copy_linker_arg(p);
1565 } else if (link_option(option, "section-alignment=", &p)) {
1566 s->section_align = strtoul(p, &end, 16);
1567 } else if (link_option(option, "soname=", &p)) {
1568 s->soname = copy_linker_arg(p);
1569 #ifdef TCC_TARGET_PE
1570 } else if (link_option(option, "file-alignment=", &p)) {
1571 s->pe_file_align = strtoul(p, &end, 16);
1572 } else if (link_option(option, "stack=", &p)) {
1573 s->pe_stack_size = strtoul(p, &end, 10);
1574 } else if (link_option(option, "subsystem=", &p)) {
1575 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1576 if (!strcmp(p, "native")) {
1577 s->pe_subsystem = 1;
1578 } else if (!strcmp(p, "console")) {
1579 s->pe_subsystem = 3;
1580 } else if (!strcmp(p, "gui")) {
1581 s->pe_subsystem = 2;
1582 } else if (!strcmp(p, "posix")) {
1583 s->pe_subsystem = 7;
1584 } else if (!strcmp(p, "efiapp")) {
1585 s->pe_subsystem = 10;
1586 } else if (!strcmp(p, "efiboot")) {
1587 s->pe_subsystem = 11;
1588 } else if (!strcmp(p, "efiruntime")) {
1589 s->pe_subsystem = 12;
1590 } else if (!strcmp(p, "efirom")) {
1591 s->pe_subsystem = 13;
1592 #elif defined(TCC_TARGET_ARM)
1593 if (!strcmp(p, "wince")) {
1594 s->pe_subsystem = 9;
1602 if (ignoring && s->warn_unsupported) err: {
1604 pstrcpy(buf, sizeof buf, e = copy_linker_arg(option)), tcc_free(e);
1606 tcc_warning("unsupported linker option '%s'", buf);
1608 tcc_error("unsupported linker option '%s'", buf);
1610 option = skip_linker_arg(&p);
1615 typedef struct TCCOption {
1646 TCC_OPTION_nostdinc,
1647 TCC_OPTION_nostdlib,
1648 TCC_OPTION_print_search_dirs,
1649 TCC_OPTION_rdynamic,
1650 TCC_OPTION_pedantic,
1653 TCC_OPTION_norunsrc,
1661 TCC_OPTION_dumpversion,
1664 #define TCC_OPTION_HAS_ARG 0x0001
1665 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1667 static const TCCOption tcc_options[] = {
1668 { "h", TCC_OPTION_HELP, 0 },
1669 { "-help", TCC_OPTION_HELP, 0 },
1670 { "?", TCC_OPTION_HELP, 0 },
1671 { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG },
1672 { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG },
1673 { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG },
1674 { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG },
1675 { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG },
1676 { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1677 { "bench", TCC_OPTION_bench, 0 },
1678 #ifdef CONFIG_TCC_BACKTRACE
1679 { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG },
1681 #ifdef CONFIG_TCC_BCHECK
1682 { "b", TCC_OPTION_b, 0 },
1684 { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1685 { "c", TCC_OPTION_c, 0 },
1686 { "static", TCC_OPTION_static, 0 },
1687 { "shared", TCC_OPTION_shared, 0 },
1688 { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG },
1689 { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG },
1690 { "pedantic", TCC_OPTION_pedantic, 0},
1691 { "pthread", TCC_OPTION_pthread, 0},
1692 { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1693 { "norunsrc", TCC_OPTION_norunsrc, 0 },
1694 { "rdynamic", TCC_OPTION_rdynamic, 0 },
1695 { "r", TCC_OPTION_r, 0 },
1696 { "s", TCC_OPTION_s, 0 },
1697 { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1698 { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1699 { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1700 { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG },
1701 { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1702 { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
1703 { "nostdinc", TCC_OPTION_nostdinc, 0 },
1704 { "nostdlib", TCC_OPTION_nostdlib, 0 },
1705 { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 },
1706 { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
1707 { "w", TCC_OPTION_w, 0 },
1708 { "pipe", TCC_OPTION_pipe, 0},
1709 { "E", TCC_OPTION_E, 0},
1710 { "MD", TCC_OPTION_MD, 0},
1711 { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG },
1712 { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG },
1713 { "dumpversion", TCC_OPTION_dumpversion, 0},
1717 static void parse_option_D(TCCState *s1, const char *optarg)
1719 char *sym = tcc_strdup(optarg);
1720 char *value = strchr(sym, '=');
1723 tcc_define_symbol(s1, sym, value);
1727 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv)
1729 const TCCOption *popt;
1730 const char *optarg, *r;
1736 /* collect -Wl options for input such as "-Wl,-rpath -Wl,<path>" */
1738 cstr_new(&linker_arg);
1740 while (optind < argc) {
1743 if (r[0] != '-' || r[1] == '\0') {
1744 /* add a new file */
1745 if (!run || !norunsrc)
1746 dynarray_add((void ***)&s->files, &s->nb_files, tcc_strdup(r));
1749 /* argv[0] will be this file */
1755 /* find option in table */
1756 for(popt = tcc_options; ; ++popt) {
1757 const char *p1 = popt->name;
1758 const char *r1 = r + 1;
1760 tcc_error("invalid option -- '%s'", r);
1761 if (!strstart(p1, &r1))
1764 if (popt->flags & TCC_OPTION_HAS_ARG) {
1765 if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) {
1767 tcc_error("argument to '%s' is missing", r);
1768 optarg = argv[optind++];
1770 } else if (*r1 != '\0')
1775 switch(popt->index) {
1776 case TCC_OPTION_HELP:
1779 if (tcc_add_include_path(s, optarg) < 0)
1780 tcc_error("too many include paths");
1783 parse_option_D(s, optarg);
1786 tcc_undefine_symbol(s, optarg);
1789 tcc_add_library_path(s, optarg);
1792 /* set tcc utilities path (mainly for tcc development) */
1793 tcc_set_lib_path(s, optarg);
1796 dynarray_add((void ***)&s->files, &s->nb_files, tcc_strdup(r));
1799 case TCC_OPTION_pthread:
1800 parse_option_D(s, "_REENTRANT");
1803 case TCC_OPTION_bench:
1806 #ifdef CONFIG_TCC_BACKTRACE
1808 tcc_set_num_callers(atoi(optarg));
1811 #ifdef CONFIG_TCC_BCHECK
1813 s->do_bounds_check = 1;
1821 s->output_type = TCC_OUTPUT_OBJ;
1823 case TCC_OPTION_static:
1826 case TCC_OPTION_shared:
1827 s->output_type = TCC_OUTPUT_DLL;
1829 case TCC_OPTION_soname:
1830 s->soname = tcc_strdup(optarg);
1833 s->option_m = tcc_strdup(optarg);
1836 s->outfile = tcc_strdup(optarg);
1839 /* generate a .o merging several output files */
1841 s->output_type = TCC_OUTPUT_OBJ;
1843 case TCC_OPTION_isystem:
1844 tcc_add_sysinclude_path(s, optarg);
1846 case TCC_OPTION_nostdinc:
1849 case TCC_OPTION_nostdlib:
1852 case TCC_OPTION_print_search_dirs:
1853 s->print_search_dirs = 1;
1855 case TCC_OPTION_run:
1856 s->output_type = TCC_OUTPUT_MEMORY;
1857 tcc_set_options(s, optarg);
1860 case TCC_OPTION_norunsrc:
1864 do ++s->verbose; while (*optarg++ == 'v');
1867 if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported)
1868 goto unsupported_option;
1871 if (tcc_set_warning(s, optarg, 1) < 0 &&
1872 s->warn_unsupported)
1873 goto unsupported_option;
1878 case TCC_OPTION_rdynamic:
1882 if (linker_arg.size)
1883 --linker_arg.size, cstr_ccat(&linker_arg, ',');
1884 cstr_cat(&linker_arg, optarg);
1885 cstr_ccat(&linker_arg, '\0');
1888 s->output_type = TCC_OUTPUT_PREPROCESS;
1894 s->deps_outfile = tcc_strdup(optarg);
1896 case TCC_OPTION_dumpversion:
1897 printf ("%s\n", TCC_VERSION);
1900 case TCC_OPTION_pedantic:
1901 case TCC_OPTION_pipe:
1907 if (s->warn_unsupported) {
1909 tcc_warning("unsupported option '%s'", r);
1915 if (pthread && s->output_type != TCC_OUTPUT_OBJ)
1916 tcc_set_options(s, "-lpthread");
1918 tcc_set_linker(s, (const char *)linker_arg.data);
1919 cstr_free(&linker_arg);
1924 LIBTCCAPI int tcc_set_options(TCCState *s, const char *str)
1931 argc = 0, argv = NULL;
1933 while (is_space(*str))
1938 while (*str != '\0' && !is_space(*str))
1941 arg = tcc_malloc(len + 1);
1942 pstrncpy(arg, s1, len);
1943 dynarray_add((void ***)&argv, &argc, arg);
1945 ret = tcc_parse_args(s, argc, argv);
1946 dynarray_reset(&argv, &argc);
1950 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time)
1953 tt = (double)total_time / 1000000.0;
1956 if (total_bytes < 1)
1958 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1959 tok_ident - TOK_IDENT, total_lines, total_bytes,
1960 tt, (int)(total_lines / tt),
1961 total_bytes / tt / 1000000.0);
1964 PUB_FUNC void tcc_set_environment(TCCState *s)
1968 path = getenv("C_INCLUDE_PATH");
1970 tcc_add_include_path(s, path);
1972 path = getenv("CPATH");
1974 tcc_add_include_path(s, path);
1976 path = getenv("LIBRARY_PATH");
1978 tcc_add_library_path(s, path);