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
48 #ifdef TCC_TARGET_ARM64
49 #include "arm64-gen.c"
54 #ifdef TCC_TARGET_X86_64
55 #include "x86_64-gen.c"
59 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
63 #ifdef TCC_TARGET_COFF
69 #endif /* ONE_SOURCE */
71 /********************************************************/
72 #ifndef CONFIG_TCC_ASM
73 ST_FUNC
void asm_instr(void)
75 tcc_error("inline asm() not supported");
77 ST_FUNC
void asm_global_instr(void)
79 tcc_error("inline asm() not supported");
83 /********************************************************/
85 static char *normalize_slashes(char *path
)
88 for (p
= path
; *p
; ++p
)
94 static HMODULE tcc_module
;
96 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
97 static void tcc_set_lib_path_w32(TCCState
*s
)
100 GetModuleFileNameA(tcc_module
, path
, sizeof path
);
101 p
= tcc_basename(normalize_slashes(strlwr(path
)));
102 if (p
- 5 > path
&& 0 == strncmp(p
- 5, "/bin/", 5))
107 tcc_set_lib_path(s
, path
);
111 static void tcc_add_systemdir(TCCState
*s
)
114 GetSystemDirectory(buf
, sizeof buf
);
115 tcc_add_library_path(s
, normalize_slashes(buf
));
119 #ifndef CONFIG_TCC_STATIC
120 void dlclose(void *p
)
122 FreeLibrary((HMODULE
)p
);
127 BOOL WINAPI
DllMain (HINSTANCE hDll
, DWORD dwReason
, LPVOID lpReserved
)
129 if (DLL_PROCESS_ATTACH
== dwReason
)
136 /********************************************************/
137 /* copy a string and truncate it. */
138 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
145 q_end
= buf
+ buf_size
- 1;
157 /* strcat and truncate. */
158 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
163 pstrcpy(buf
+ len
, buf_size
- len
, s
);
167 PUB_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
)
169 memcpy(out
, in
, num
);
174 /* extract the basename of a file */
175 PUB_FUNC
char *tcc_basename(const char *name
)
177 char *p
= strchr(name
, 0);
178 while (p
> name
&& !IS_DIRSEP(p
[-1]))
183 /* extract extension part of a file
185 * (if no extension, return pointer to end-of-string)
187 PUB_FUNC
char *tcc_fileextension (const char *name
)
189 char *b
= tcc_basename(name
);
190 char *e
= strrchr(b
, '.');
191 return e
? e
: strchr(b
, 0);
194 /********************************************************/
195 /* memory management */
203 PUB_FUNC
void tcc_free(void *ptr
)
208 PUB_FUNC
void *tcc_malloc(unsigned long size
)
213 tcc_error("memory full (malloc)");
217 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
220 ptr
= tcc_malloc(size
);
221 memset(ptr
, 0, size
);
225 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
228 ptr1
= realloc(ptr
, size
);
230 tcc_error("memory full (realloc)");
234 PUB_FUNC
char *tcc_strdup(const char *str
)
237 ptr
= tcc_malloc(strlen(str
) + 1);
242 PUB_FUNC
void tcc_memstats(int bench
)
248 #define MEM_DEBUG_MAGIC1 0xFEEDDEB1
249 #define MEM_DEBUG_MAGIC2 0xFEEDDEB2
250 #define MEM_DEBUG_FILE_LEN 15
252 struct mem_debug_header
{
255 struct mem_debug_header
*prev
;
256 struct mem_debug_header
*next
;
258 char file_name
[MEM_DEBUG_FILE_LEN
+ 1];
262 typedef struct mem_debug_header mem_debug_header_t
;
264 static mem_debug_header_t
*mem_debug_chain
;
265 static size_t mem_cur_size
;
266 static size_t mem_max_size
;
268 PUB_FUNC
void *tcc_malloc_debug(unsigned long size
, const char *file
, int line
)
271 mem_debug_header_t
*header
;
273 ptr
= malloc(sizeof(mem_debug_header_t
) + size
);
275 tcc_error("memory full (malloc)");
277 mem_cur_size
+= size
;
278 if (mem_cur_size
> mem_max_size
)
279 mem_max_size
= mem_cur_size
;
281 header
= (mem_debug_header_t
*)ptr
;
283 header
->magic1
= MEM_DEBUG_MAGIC1
;
284 header
->magic2
= MEM_DEBUG_MAGIC2
;
286 header
->line_num
= line
;
288 strncpy(header
->file_name
, file
, MEM_DEBUG_FILE_LEN
);
289 header
->file_name
[MEM_DEBUG_FILE_LEN
] = 0;
291 header
->next
= mem_debug_chain
;
295 header
->next
->prev
= header
;
297 mem_debug_chain
= header
;
299 ptr
= (char *)ptr
+ sizeof(mem_debug_header_t
);
303 PUB_FUNC
void tcc_free_debug(void *ptr
)
305 mem_debug_header_t
*header
;
310 ptr
= (char *)ptr
- sizeof(mem_debug_header_t
);
311 header
= (mem_debug_header_t
*)ptr
;
312 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
313 header
->magic2
!= MEM_DEBUG_MAGIC2
||
314 header
->size
== (size_t)-1 )
316 tcc_error("tcc_free check failed");
319 mem_cur_size
-= header
->size
;
320 header
->size
= (size_t)-1;
323 header
->next
->prev
= header
->prev
;
326 header
->prev
->next
= header
->next
;
328 if (header
== mem_debug_chain
)
329 mem_debug_chain
= header
->next
;
335 PUB_FUNC
void *tcc_mallocz_debug(unsigned long size
, const char *file
, int line
)
338 ptr
= tcc_malloc_debug(size
,file
,line
);
339 memset(ptr
, 0, size
);
343 PUB_FUNC
void *tcc_realloc_debug(void *ptr
, unsigned long size
, const char *file
, int line
)
345 mem_debug_header_t
*header
;
346 int mem_debug_chain_update
= 0;
349 ptr
= tcc_malloc_debug(size
, file
, line
);
353 ptr
= (char *)ptr
- sizeof(mem_debug_header_t
);
354 header
= (mem_debug_header_t
*)ptr
;
355 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
356 header
->magic2
!= MEM_DEBUG_MAGIC2
||
357 header
->size
== (size_t)-1 )
360 tcc_error("tcc_realloc check failed");
363 mem_debug_chain_update
= (header
== mem_debug_chain
);
365 mem_cur_size
-= header
->size
;
366 ptr
= realloc(ptr
, sizeof(mem_debug_header_t
) + size
);
368 tcc_error("memory full (realloc)");
370 header
= (mem_debug_header_t
*)ptr
;
371 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
372 header
->magic2
!= MEM_DEBUG_MAGIC2
)
377 mem_cur_size
+= size
;
378 if (mem_cur_size
> mem_max_size
)
379 mem_max_size
= mem_cur_size
;
383 header
->next
->prev
= header
;
386 header
->prev
->next
= header
;
388 if (mem_debug_chain_update
)
389 mem_debug_chain
= header
;
391 ptr
= (char *)ptr
+ sizeof(mem_debug_header_t
);
395 PUB_FUNC
char *tcc_strdup_debug(const char *str
, const char *file
, int line
)
398 ptr
= tcc_malloc_debug(strlen(str
) + 1, file
, line
);
403 PUB_FUNC
void tcc_memstats(int bench
)
406 mem_debug_header_t
*header
= mem_debug_chain
;
408 fprintf(stderr
, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n",
409 mem_cur_size
, mem_max_size
);
412 fprintf(stderr
, " file %s, line %u: %u bytes\n",
413 header
->file_name
, header
->line_num
, header
->size
);
414 header
= header
->next
;
418 fprintf(stderr
, "mem_max_size= %d bytes\n", mem_max_size
);
421 #undef MEM_DEBUG_MAGIC1
422 #undef MEM_DEBUG_MAGIC2
423 #undef MEM_DEBUG_FILE_LEN
427 #define free(p) use_tcc_free(p)
428 #define malloc(s) use_tcc_malloc(s)
429 #define realloc(p, s) use_tcc_realloc(p, s)
431 /********************************************************/
434 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
441 /* every power of two we double array size */
442 if ((nb
& (nb
- 1)) == 0) {
447 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
454 ST_FUNC
void dynarray_reset(void *pp
, int *n
)
457 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
460 tcc_free(*(void**)pp
);
464 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
472 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
473 if (c
== '{' && p
[1] && p
[2] == '}') {
476 cstr_cat(&str
, s
->tcc_lib_path
);
481 cstr_ccat(&str
, '\0');
482 dynarray_add(p_ary
, p_nb_ary
, str
.data
);
487 /********************************************************/
489 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
493 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
494 strcpy(sec
->name
, name
);
495 sec
->sh_type
= sh_type
;
496 sec
->sh_flags
= sh_flags
;
504 sec
->sh_addralign
= 4;
507 sec
->sh_addralign
= 1;
510 sec
->sh_addralign
= 32; /* default conservative alignment */
514 if (sh_flags
& SHF_PRIVATE
) {
515 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
517 sec
->sh_num
= s1
->nb_sections
;
518 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
524 static void free_section(Section
*s
)
529 /* realloc section and set its content to zero */
530 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
535 size
= sec
->data_allocated
;
538 while (size
< new_size
)
540 data
= tcc_realloc(sec
->data
, size
);
541 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
543 sec
->data_allocated
= size
;
546 /* reserve at least 'size' bytes in section 'sec' from
548 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
)
550 size_t offset
, offset1
;
552 offset
= sec
->data_offset
;
553 offset1
= offset
+ size
;
554 if (offset1
> sec
->data_allocated
)
555 section_realloc(sec
, offset1
);
556 sec
->data_offset
= offset1
;
557 return sec
->data
+ offset
;
560 /* reserve at least 'size' bytes from section start */
561 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
563 if (size
> sec
->data_allocated
)
564 section_realloc(sec
, size
);
565 if (size
> sec
->data_offset
)
566 sec
->data_offset
= size
;
569 /* return a reference to a section, and create it if it does not
571 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
575 for(i
= 1; i
< s1
->nb_sections
; i
++) {
576 sec
= s1
->sections
[i
];
577 if (!strcmp(name
, sec
->name
))
580 /* sections are created as PROGBITS */
581 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
584 /* update sym->c so that it points to an external symbol in section
585 'section' with value 'value' */
586 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
587 addr_t value
, unsigned long size
,
588 int can_add_underscore
)
590 int sym_type
, sym_bind
, sh_num
, info
, other
;
595 #ifdef CONFIG_TCC_BCHECK
601 else if (section
== SECTION_ABS
)
604 sh_num
= section
->sh_num
;
606 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
608 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
609 sym_type
= STT_NOTYPE
;
611 sym_type
= STT_OBJECT
;
614 if (sym
->type
.t
& VT_STATIC
)
615 sym_bind
= STB_LOCAL
;
617 if (sym
->type
.t
& VT_WEAK
)
620 sym_bind
= STB_GLOBAL
;
624 name
= get_tok_str(sym
->v
, NULL
);
625 #ifdef CONFIG_TCC_BCHECK
626 if (tcc_state
->do_bounds_check
) {
627 /* XXX: avoid doing that for statics ? */
628 /* if bound checking is activated, we change some function
629 names by adding the "__bound" prefix */
632 /* XXX: we rely only on malloc hooks */
645 strcpy(buf
, "__bound_");
655 if (sym
->type
.t
& VT_EXPORT
)
656 other
|= ST_PE_EXPORT
;
657 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
658 Sym
*ref
= sym
->type
.ref
;
659 if (ref
->a
.func_export
)
660 other
|= ST_PE_EXPORT
;
661 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
662 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
664 other
|= ST_PE_STDCALL
;
665 can_add_underscore
= 0;
668 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
669 other
|= ST_PE_IMPORT
;
670 if (sym
->type
.t
& VT_IMPORT
)
671 other
|= ST_PE_IMPORT
;
674 if (! (sym
->type
.t
& VT_STATIC
))
675 other
= (sym
->type
.t
& VT_VIS_MASK
) >> VT_VIS_SHIFT
;
677 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
679 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
682 if (sym
->asm_label
) {
683 name
= sym
->asm_label
;
685 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
686 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
688 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
689 esym
->st_value
= value
;
690 esym
->st_size
= size
;
691 esym
->st_shndx
= sh_num
;
695 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
696 addr_t value
, unsigned long size
)
698 put_extern_sym2(sym
, section
, value
, size
, 1);
701 /* add a new relocation entry to symbol 'sym' in section 's' */
702 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
,
708 put_extern_sym(sym
, NULL
, 0, 0);
711 /* now we can add ELF relocation info */
712 put_elf_reloca(symtab_section
, s
, offset
, type
, c
, addend
);
715 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
717 greloca(s
, sym
, offset
, type
, 0);
720 /********************************************************/
722 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
726 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
729 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
733 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
737 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
740 BufferedFile
**pf
, *f
;
743 /* use upper file if inline ":asm:" or token ":paste:" */
744 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
747 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
748 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
749 (*pf
)->filename
, (*pf
)->line_num
);
750 if (f
->line_num
> 0) {
751 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
752 f
->filename
, f
->line_num
);
754 strcat_printf(buf
, sizeof(buf
), "%s: ",
758 strcat_printf(buf
, sizeof(buf
), "tcc: ");
761 strcat_printf(buf
, sizeof(buf
), "warning: ");
763 strcat_printf(buf
, sizeof(buf
), "error: ");
764 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
766 if (!s1
->error_func
) {
767 /* default case: stderr */
768 if (s1
->ppfp
) /* print a newline during tcc -E */
769 fprintf(s1
->ppfp
, "\n"), fflush(s1
->ppfp
);
770 fprintf(stderr
, "%s\n", buf
);
771 fflush(stderr
); /* print error/warning now (win32) */
773 s1
->error_func(s1
->error_opaque
, buf
);
775 if (!is_warning
|| s1
->warn_error
)
779 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
780 void (*error_func
)(void *opaque
, const char *msg
))
782 s
->error_opaque
= error_opaque
;
783 s
->error_func
= error_func
;
786 /* error without aborting current compilation */
787 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
789 TCCState
*s1
= tcc_state
;
793 error1(s1
, 0, fmt
, ap
);
797 PUB_FUNC
void tcc_error(const char *fmt
, ...)
799 TCCState
*s1
= tcc_state
;
803 error1(s1
, 0, fmt
, ap
);
805 /* better than nothing: in some cases, we accept to handle errors */
806 if (s1
->error_set_jmp_enabled
) {
807 longjmp(s1
->error_jmp_buf
, 1);
809 /* XXX: eliminate this someday */
814 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
816 TCCState
*s1
= tcc_state
;
823 error1(s1
, 1, fmt
, ap
);
827 /********************************************************/
830 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
833 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
835 bf
= tcc_mallocz(sizeof(BufferedFile
) + buflen
);
836 bf
->buf_ptr
= bf
->buffer
;
837 bf
->buf_end
= bf
->buffer
+ initlen
;
838 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
839 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
841 normalize_slashes(bf
->filename
);
844 bf
->inc_path_index
= -2;
845 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
851 ST_FUNC
void tcc_close(void)
853 BufferedFile
*bf
= file
;
856 total_lines
+= bf
->line_num
;
862 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
865 if (strcmp(filename
, "-") == 0)
866 fd
= 0, filename
= "<stdin>";
868 fd
= open(filename
, O_RDONLY
| O_BINARY
);
869 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
870 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
871 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
875 tcc_open_bf(s1
, filename
, 0);
880 /* compile the C file opened in 'file'. Return non zero if errors. */
881 static int tcc_compile(TCCState
*s1
)
885 volatile int section_sym
;
888 printf("%s: **** new file\n", file
->filename
);
892 cur_text_section
= NULL
;
894 anon_sym
= SYM_FIRST_ANOM
;
896 /* file info: full path + filename */
897 section_sym
= 0; /* avoid warning */
899 section_sym
= put_elf_sym(symtab_section
, 0, 0,
900 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
901 text_section
->sh_num
, NULL
);
902 getcwd(buf
, sizeof(buf
));
904 normalize_slashes(buf
);
906 pstrcat(buf
, sizeof(buf
), "/");
907 put_stabs_r(buf
, N_SO
, 0, 0,
908 text_section
->data_offset
, text_section
, section_sym
);
909 put_stabs_r(file
->filename
, N_SO
, 0, 0,
910 text_section
->data_offset
, text_section
, section_sym
);
912 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
913 symbols can be safely used */
914 put_elf_sym(symtab_section
, 0, 0,
915 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
916 SHN_ABS
, file
->filename
);
918 /* define some often used types */
921 char_pointer_type
.t
= VT_BYTE
;
922 mk_pointer(&char_pointer_type
);
925 size_type
.t
= VT_INT
;
927 size_type
.t
= VT_LLONG
;
930 func_old_type
.t
= VT_FUNC
;
931 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
932 #ifdef TCC_TARGET_ARM
937 /* define 'void *alloca(unsigned int)' builtin function */
942 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
943 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
946 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
950 define_start
= define_stack
;
953 if (setjmp(s1
->error_jmp_buf
) == 0) {
955 s1
->error_set_jmp_enabled
= 1;
957 ch
= file
->buf_ptr
[0];
958 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
959 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
| PARSE_FLAG_TOK_STR
;
963 expect("declaration");
966 /* end of translation unit info */
968 put_stabs_r(NULL
, N_SO
, 0, 0,
969 text_section
->data_offset
, text_section
, section_sym
);
973 s1
->error_set_jmp_enabled
= 0;
975 /* reset define stack, but leave -Dsymbols (may be incorrect if
976 they are undefined) */
977 free_defines(define_start
);
979 gen_inline_functions();
981 sym_pop(&global_stack
, NULL
);
982 sym_pop(&local_stack
, NULL
);
984 return s1
->nb_errors
!= 0 ? -1 : 0;
987 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
992 tcc_open_bf(s
, "<string>", len
);
993 memcpy(file
->buffer
, str
, len
);
994 ret
= tcc_compile(s
);
999 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
1000 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
1007 len2
= strlen(value
);
1009 /* init file structure */
1010 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
1011 memcpy(file
->buffer
, sym
, len1
);
1012 file
->buffer
[len1
] = ' ';
1013 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
1015 /* parse with define parser */
1016 ch
= file
->buf_ptr
[0];
1023 /* undefine a preprocessor symbol */
1024 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
1028 ts
= tok_alloc(sym
, strlen(sym
));
1029 s
= define_find(ts
->tok
);
1030 /* undefine symbol by putting an invalid name */
1035 /* cleanup all static data used during compilation */
1036 static void tcc_cleanup(void)
1038 if (NULL
== tcc_state
)
1042 preprocess_delete();
1044 /* free sym_pools */
1045 dynarray_reset(&sym_pools
, &nb_sym_pools
);
1047 cstr_free(&tokcstr
);
1048 /* reset symbol stack */
1049 sym_free_first
= NULL
;
1052 LIBTCCAPI TCCState
*tcc_new(void)
1060 s
= tcc_mallocz(sizeof(TCCState
));
1065 tcc_set_lib_path_w32(s
);
1067 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
1071 s
->include_stack_ptr
= s
->include_stack
;
1073 /* we add dummy defines for some special macros to speed up tests
1074 and to have working defined() */
1075 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
1076 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
1077 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
1078 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
1080 /* define __TINYC__ 92X */
1081 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
1082 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
1083 tcc_define_symbol(s
, "__TINYC__", buffer
);
1085 /* standard defines */
1086 tcc_define_symbol(s
, "__STDC__", NULL
);
1087 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
1088 tcc_define_symbol(s
, "__STDC_HOSTED__", NULL
);
1090 /* target defines */
1091 #if defined(TCC_TARGET_I386)
1092 tcc_define_symbol(s
, "__i386__", NULL
);
1093 tcc_define_symbol(s
, "__i386", NULL
);
1094 tcc_define_symbol(s
, "i386", NULL
);
1095 #elif defined(TCC_TARGET_X86_64)
1096 tcc_define_symbol(s
, "__x86_64__", NULL
);
1097 #elif defined(TCC_TARGET_ARM)
1098 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
1099 tcc_define_symbol(s
, "__arm_elf__", NULL
);
1100 tcc_define_symbol(s
, "__arm_elf", NULL
);
1101 tcc_define_symbol(s
, "arm_elf", NULL
);
1102 tcc_define_symbol(s
, "__arm__", NULL
);
1103 tcc_define_symbol(s
, "__arm", NULL
);
1104 tcc_define_symbol(s
, "arm", NULL
);
1105 tcc_define_symbol(s
, "__APCS_32__", NULL
);
1106 tcc_define_symbol(s
, "__ARMEL__", NULL
);
1107 #if defined(TCC_ARM_EABI)
1108 tcc_define_symbol(s
, "__ARM_EABI__", NULL
);
1110 #if defined(TCC_ARM_HARDFLOAT)
1111 s
->float_abi
= ARM_HARD_FLOAT
;
1112 tcc_define_symbol(s
, "__ARM_PCS_VFP", NULL
);
1114 s
->float_abi
= ARM_SOFTFP_FLOAT
;
1116 #elif defined(TCC_TARGET_ARM64)
1117 tcc_define_symbol(s
, "__aarch64__", NULL
);
1120 #ifdef TCC_TARGET_PE
1121 tcc_define_symbol(s
, "_WIN32", NULL
);
1122 # ifdef TCC_TARGET_X86_64
1123 tcc_define_symbol(s
, "_WIN64", NULL
);
1126 tcc_define_symbol(s
, "__unix__", NULL
);
1127 tcc_define_symbol(s
, "__unix", NULL
);
1128 tcc_define_symbol(s
, "unix", NULL
);
1129 # if defined(__linux)
1130 tcc_define_symbol(s
, "__linux__", NULL
);
1131 tcc_define_symbol(s
, "__linux", NULL
);
1133 # if defined(__FreeBSD__)
1135 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
1138 # if defined(__FreeBSD_kernel__)
1139 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
1142 # if defined(__NetBSD__)
1144 tcc_define_symbol(s
, "__NetBSD__", str( __NetBSD__
));
1148 /* TinyCC & gcc defines */
1149 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
1150 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
1151 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
1153 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1154 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1157 #ifdef TCC_TARGET_PE
1158 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
1159 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
1161 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
1162 /* wint_t is unsigned int by default, but (signed) int on BSDs
1163 and unsigned short on windows. Other OSes might have still
1164 other conventions, sigh. */
1165 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__NetBSD__)
1166 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1168 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1172 #ifndef TCC_TARGET_PE
1174 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1175 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1176 /* paths for crt objects */
1177 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1180 /* no section zero */
1181 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1183 /* create standard sections */
1184 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1185 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1186 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1188 /* symbols are always generated for linking stage */
1189 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1191 ".hashtab", SHF_PRIVATE
);
1192 strtab_section
= symtab_section
->link
;
1193 s
->symtab
= symtab_section
;
1195 /* private symbol table for dynamic symbols */
1196 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1198 ".dynhashtab", SHF_PRIVATE
);
1199 s
->alacarte_link
= 1;
1201 s
->warn_implicit_function_declaration
= 1;
1203 #ifdef CHAR_IS_UNSIGNED
1204 s
->char_is_unsigned
= 1;
1206 /* enable this if you want symbols with leading underscore on windows: */
1207 #if 0 /* def TCC_TARGET_PE */
1208 s
->leading_underscore
= 1;
1210 #ifdef TCC_TARGET_I386
1213 #ifdef TCC_IS_NATIVE
1214 s
->runtime_main
= "main";
1219 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1222 int bench
= s1
->do_bench
;
1226 /* close a preprocessor output */
1227 if (s1
->ppfp
&& s1
->ppfp
!= stdout
)
1230 /* free all sections */
1231 for(i
= 1; i
< s1
->nb_sections
; i
++)
1232 free_section(s1
->sections
[i
]);
1233 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1235 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1236 free_section(s1
->priv_sections
[i
]);
1237 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1239 /* free any loaded DLLs */
1240 #ifdef TCC_IS_NATIVE
1241 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1242 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1244 dlclose(ref
->handle
);
1248 /* free loaded dlls array */
1249 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1251 /* free library paths */
1252 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1253 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1255 /* free include paths */
1256 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1257 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1258 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1260 tcc_free(s1
->tcc_lib_path
);
1261 tcc_free(s1
->soname
);
1262 tcc_free(s1
->rpath
);
1263 tcc_free(s1
->init_symbol
);
1264 tcc_free(s1
->fini_symbol
);
1265 tcc_free(s1
->outfile
);
1266 tcc_free(s1
->deps_outfile
);
1267 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1268 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1269 dynarray_reset(&s1
->pragma_libs
, &s1
->nb_pragma_libs
);
1271 #ifdef TCC_IS_NATIVE
1272 # ifdef HAVE_SELINUX
1273 munmap (s1
->write_mem
, s1
->mem_size
);
1274 munmap (s1
->runtime_mem
, s1
->mem_size
);
1276 tcc_free(s1
->runtime_mem
);
1280 tcc_free(s1
->sym_attrs
);
1282 tcc_memstats(bench
);
1285 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1287 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1291 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1293 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1297 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
, int filetype
)
1303 #ifdef CONFIG_TCC_ASM
1304 /* if .S file, define __ASSEMBLER__ like gcc does */
1305 if ((filetype
== TCC_FILETYPE_ASM
) || (filetype
== TCC_FILETYPE_ASM_PP
)) {
1306 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1307 parse_flags
= PARSE_FLAG_ASM_FILE
;
1312 ret
= tcc_open(s1
, filename
);
1314 if (flags
& AFF_PRINT_ERROR
)
1315 tcc_error_noabort("file '%s' not found", filename
);
1319 /* update target deps */
1320 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1321 tcc_strdup(filename
));
1323 if (flags
& AFF_PREPROCESS
) {
1324 ret
= tcc_preprocess(s1
);
1328 if (filetype
== TCC_FILETYPE_C
) {
1329 /* C file assumed */
1330 ret
= tcc_compile(s1
);
1334 #ifdef CONFIG_TCC_ASM
1335 if (filetype
== TCC_FILETYPE_ASM_PP
) {
1336 /* non preprocessed assembler */
1337 ret
= tcc_assemble(s1
, 1);
1341 if (filetype
== TCC_FILETYPE_ASM
) {
1342 /* preprocessed assembler */
1343 ret
= tcc_assemble(s1
, 0);
1349 /* assume executable format: auto guess file type */
1350 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1351 lseek(fd
, 0, SEEK_SET
);
1353 tcc_error_noabort("could not read header");
1357 if (size
== sizeof(ehdr
) &&
1358 ehdr
.e_ident
[0] == ELFMAG0
&&
1359 ehdr
.e_ident
[1] == ELFMAG1
&&
1360 ehdr
.e_ident
[2] == ELFMAG2
&&
1361 ehdr
.e_ident
[3] == ELFMAG3
) {
1363 /* do not display line number if error */
1365 if (ehdr
.e_type
== ET_REL
) {
1366 ret
= tcc_load_object_file(s1
, fd
, 0);
1370 #ifndef TCC_TARGET_PE
1371 if (ehdr
.e_type
== ET_DYN
) {
1372 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1373 #ifdef TCC_IS_NATIVE
1375 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1380 ret
= tcc_load_dll(s1
, fd
, filename
,
1381 (flags
& AFF_REFERENCED_DLL
) != 0);
1386 tcc_error_noabort("unrecognized ELF file");
1390 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1391 file
->line_num
= 0; /* do not display line number if error */
1392 ret
= tcc_load_archive(s1
, fd
);
1396 #ifdef TCC_TARGET_COFF
1397 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1398 ret
= tcc_load_coff(s1
, fd
);
1403 #ifdef TCC_TARGET_PE
1404 ret
= pe_load_file(s1
, filename
, fd
);
1406 /* as GNU ld, consider it is an ld script if not recognized */
1407 ret
= tcc_load_ldscript(s1
);
1410 tcc_error_noabort("unrecognized file type");
1417 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
, int filetype
)
1419 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1420 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
, filetype
);
1422 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
, filetype
);
1425 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1427 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1431 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1432 const char *filename
, int flags
, char **paths
, int nb_paths
)
1437 for(i
= 0; i
< nb_paths
; i
++) {
1438 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1439 if (tcc_add_file_internal(s
, buf
, flags
, TCC_FILETYPE_BINARY
) == 0)
1445 #ifndef TCC_TARGET_PE
1446 /* find and load a dll. Return non zero if not found */
1447 /* XXX: add '-rpath' option support ? */
1448 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1450 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1451 s
->library_paths
, s
->nb_library_paths
);
1455 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1457 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1458 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1459 tcc_error_noabort("file '%s' not found", filename
);
1463 /* the library name is the same as the argument of the '-l' option */
1464 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1466 #ifdef TCC_TARGET_PE
1467 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1468 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1470 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1471 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1474 if (0 == tcc_add_library_internal(s
, *pp
,
1475 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1482 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *libname
)
1484 int ret
= tcc_add_library(s
, libname
);
1486 tcc_error_noabort("cannot find library 'lib%s'", libname
);
1490 /* habdle #pragma comment(lib,) */
1491 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
)
1494 for (i
= 0; i
< s1
->nb_pragma_libs
; i
++)
1495 tcc_add_library_err(s1
, s1
->pragma_libs
[i
]);
1498 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1500 #ifdef TCC_TARGET_PE
1501 /* On x86_64 'val' might not be reachable with a 32bit offset.
1502 So it is handled here as if it were in a DLL. */
1503 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1505 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1506 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1513 ST_FUNC
void tcc_mormalize_inc_dirs(TCCState
*s
)
1515 /* check a preprocessor include dirs and remove not
1516 existing dirs and duplicates:
1517 - for each duplicate path keep just the first one
1518 - remove each include_path that exists in sysinclude_paths
1520 struct stat sysinc_stats
[50]; // we don't use VLA in tcc code
1521 struct stat inc_stats
[50];
1522 int num_sysinc
= s
->nb_sysinclude_paths
;
1523 int num_inc
= s
->nb_include_paths
;
1527 if ((num_sysinc
> 50) || (num_inc
> 50)) {
1528 tcc_warning("fix a max number of the inc dirs");
1529 if (num_sysinc
> 50) num_sysinc
= 50;
1530 if (num_inc
> 50) num_inc
= 50;
1533 pp
= s
->sysinclude_paths
;
1534 for (i
=0; i
< num_sysinc
; i
++) {
1535 struct stat
*st
= &sysinc_stats
[i
];
1536 r
= stat( pp
[i
], st
);
1537 if (r
|| !S_ISDIR(st
->st_mode
)) {
1542 pp
= s
->include_paths
;
1543 for (i
=0; i
< num_inc
; i
++) {
1544 struct stat
*st
= &inc_stats
[i
];
1545 r
= stat( pp
[i
], st
);
1546 if (r
|| !S_ISDIR(st
->st_mode
)) {
1552 for (i
=0; i
< num_inc
; i
++) {
1553 struct stat
*st1
= &inc_stats
[i
];
1554 for (j
=i
+1; j
< num_inc
; j
++) {
1555 struct stat
*st2
= &inc_stats
[j
];
1556 if ((st1
->st_dev
== st2
->st_dev
) && (st1
->st_ino
== st2
->st_ino
)) {
1557 pp
= &s
->include_paths
[j
];
1564 for (j
=0; i
< num_sysinc
; i
++) {
1565 struct stat
*st2
= &sysinc_stats
[j
];
1566 if ((st1
->st_dev
== st2
->st_dev
) && (st1
->st_ino
== st2
->st_ino
)) {
1567 pp
= &s
->include_paths
[i
];
1575 for (i
=0; i
< num_sysinc
; i
++) {
1576 struct stat
*st1
= &sysinc_stats
[i
];
1577 for (j
=i
+1; j
< num_sysinc
; j
++) {
1578 struct stat
*st2
= &sysinc_stats
[j
];
1579 if ((st1
->st_dev
== st2
->st_dev
) && (st1
->st_ino
== st2
->st_ino
)) {
1580 pp
= &s
->sysinclude_paths
[j
];
1590 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1592 s
->output_type
= output_type
;
1595 /* default include paths */
1596 /* -isystem paths have already been handled */
1597 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1600 /* if bound checking, then add corresponding sections */
1601 #ifdef CONFIG_TCC_BCHECK
1602 if (s
->do_bounds_check
) {
1604 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1605 /* create bounds sections */
1606 bounds_section
= new_section(s
, ".bounds",
1607 SHT_PROGBITS
, SHF_ALLOC
);
1608 lbounds_section
= new_section(s
, ".lbounds",
1609 SHT_PROGBITS
, SHF_ALLOC
);
1613 if (s
->char_is_unsigned
) {
1614 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1617 /* add debug sections */
1620 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1621 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1622 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1623 put_elf_str(stabstr_section
, "");
1624 stab_section
->link
= stabstr_section
;
1625 /* put first entry */
1626 put_stabs("", 0, 0, 0, 0);
1629 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1630 #ifdef TCC_TARGET_PE
1632 tcc_add_systemdir(s
);
1635 /* add libc crt1/crti objects */
1636 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1638 if (output_type
!= TCC_OUTPUT_DLL
)
1639 tcc_add_crt(s
, "crt1.o");
1640 tcc_add_crt(s
, "crti.o");
1644 #ifdef CONFIG_TCC_BCHECK
1645 if (s
->do_bounds_check
&& (output_type
== TCC_OUTPUT_EXE
))
1647 /* force a bcheck.o linking */
1648 addr_t func
= TOK___bound_init
;
1649 Sym
*sym
= external_global_sym(func
, &func_old_type
, 0);
1651 put_extern_sym(sym
, NULL
, 0, 0);
1655 tcc_mormalize_inc_dirs(s
);
1656 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1662 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1664 tcc_free(s
->tcc_lib_path
);
1665 s
->tcc_lib_path
= tcc_strdup(path
);
1668 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1669 #define FD_INVERT 0x0002 /* invert value before storing */
1671 typedef struct FlagDef
{
1677 static const FlagDef warning_defs
[] = {
1678 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1679 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1680 { offsetof(TCCState
, warn_error
), 0, "error" },
1681 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1682 "implicit-function-declaration" },
1685 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1686 const char *name
, int value
)
1693 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1697 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1698 if (!strcmp(r
, p
->name
))
1703 if (p
->flags
& FD_INVERT
)
1705 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1709 /* set/reset a warning */
1710 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1715 if (!strcmp(warning_name
, "all")) {
1716 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1717 if (p
->flags
& WD_ALL
)
1718 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1722 return set_flag(s
, warning_defs
, countof(warning_defs
),
1723 warning_name
, value
);
1727 static const FlagDef flag_defs
[] = {
1728 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1729 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1730 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1731 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1732 { offsetof(TCCState
, ms_extensions
), 0, "ms-extensions" },
1733 { offsetof(TCCState
, old_struct_init_code
), 0, "old-struct-init-code" },
1734 { offsetof(TCCState
, dollars_in_identifiers
), 0, "dollars-in-identifiers" },
1737 /* set/reset a flag */
1738 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1740 return set_flag(s
, flag_defs
, countof(flag_defs
),
1745 static int strstart(const char *val
, const char **str
)
1760 /* Like strstart, but automatically takes into account that ld options can
1762 * - start with double or single dash (e.g. '--soname' or '-soname')
1763 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1764 * or '-Wl,-soname=x.so')
1766 * you provide `val` always in 'option[=]' form (no leading -)
1768 static int link_option(const char *str
, const char *val
, const char **ptr
)
1772 /* there should be 1 or 2 dashes */
1778 /* then str & val should match (potentialy up to '=') */
1782 while (*q
!= '\0' && *q
!= '=') {
1789 /* '=' near eos means ',' or '=' is ok */
1791 if (*p
!= ',' && *p
!= '=')
1802 static const char *skip_linker_arg(const char **str
)
1804 const char *s1
= *str
;
1805 const char *s2
= strchr(s1
, ',');
1806 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1810 static char *copy_linker_arg(const char *p
)
1813 skip_linker_arg(&q
);
1814 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1817 /* set linker options */
1818 static int tcc_set_linker(TCCState
*s
, const char *option
)
1820 while (option
&& *option
) {
1822 const char *p
= option
;
1826 if (link_option(option
, "Bsymbolic", &p
)) {
1828 } else if (link_option(option
, "nostdlib", &p
)) {
1830 } else if (link_option(option
, "fini=", &p
)) {
1831 s
->fini_symbol
= copy_linker_arg(p
);
1833 } else if (link_option(option
, "image-base=", &p
)
1834 || link_option(option
, "Ttext=", &p
)) {
1835 s
->text_addr
= strtoull(p
, &end
, 16);
1836 s
->has_text_addr
= 1;
1837 } else if (link_option(option
, "init=", &p
)) {
1838 s
->init_symbol
= copy_linker_arg(p
);
1840 } else if (link_option(option
, "oformat=", &p
)) {
1841 #if defined(TCC_TARGET_PE)
1842 if (strstart("pe-", &p
)) {
1843 #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
1844 if (strstart("elf64-", &p
)) {
1846 if (strstart("elf32-", &p
)) {
1848 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1849 } else if (!strcmp(p
, "binary")) {
1850 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1851 #ifdef TCC_TARGET_COFF
1852 } else if (!strcmp(p
, "coff")) {
1853 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1858 } else if (link_option(option
, "as-needed", &p
)) {
1860 } else if (link_option(option
, "O", &p
)) {
1862 } else if (link_option(option
, "rpath=", &p
)) {
1863 s
->rpath
= copy_linker_arg(p
);
1864 } else if (link_option(option
, "section-alignment=", &p
)) {
1865 s
->section_align
= strtoul(p
, &end
, 16);
1866 } else if (link_option(option
, "soname=", &p
)) {
1867 s
->soname
= copy_linker_arg(p
);
1868 #ifdef TCC_TARGET_PE
1869 } else if (link_option(option
, "file-alignment=", &p
)) {
1870 s
->pe_file_align
= strtoul(p
, &end
, 16);
1871 } else if (link_option(option
, "stack=", &p
)) {
1872 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1873 } else if (link_option(option
, "subsystem=", &p
)) {
1874 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1875 if (!strcmp(p
, "native")) {
1876 s
->pe_subsystem
= 1;
1877 } else if (!strcmp(p
, "console")) {
1878 s
->pe_subsystem
= 3;
1879 } else if (!strcmp(p
, "gui")) {
1880 s
->pe_subsystem
= 2;
1881 } else if (!strcmp(p
, "posix")) {
1882 s
->pe_subsystem
= 7;
1883 } else if (!strcmp(p
, "efiapp")) {
1884 s
->pe_subsystem
= 10;
1885 } else if (!strcmp(p
, "efiboot")) {
1886 s
->pe_subsystem
= 11;
1887 } else if (!strcmp(p
, "efiruntime")) {
1888 s
->pe_subsystem
= 12;
1889 } else if (!strcmp(p
, "efirom")) {
1890 s
->pe_subsystem
= 13;
1891 #elif defined(TCC_TARGET_ARM)
1892 if (!strcmp(p
, "wince")) {
1893 s
->pe_subsystem
= 9;
1901 if (ignoring
&& s
->warn_unsupported
) err
: {
1903 pstrcpy(buf
, sizeof buf
, e
= copy_linker_arg(option
)), tcc_free(e
);
1905 tcc_warning("unsupported linker option '%s'", buf
);
1907 tcc_error("unsupported linker option '%s'", buf
);
1909 option
= skip_linker_arg(&p
);
1914 typedef struct TCCOption
{
1934 TCC_OPTION_dumpversion
,
1936 TCC_OPTION_float_abi
,
1944 TCC_OPTION_traditional
,
1951 TCC_OPTION_iwithprefix
,
1952 TCC_OPTION_nostdinc
,
1953 TCC_OPTION_nostdlib
,
1954 TCC_OPTION_print_search_dirs
,
1955 TCC_OPTION_rdynamic
,
1956 TCC_OPTION_pedantic
,
1968 #define TCC_OPTION_HAS_ARG 0x0001
1969 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1971 static const TCCOption tcc_options
[] = {
1972 { "h", TCC_OPTION_HELP
, 0 },
1973 { "-help", TCC_OPTION_HELP
, 0 },
1974 { "?", TCC_OPTION_HELP
, 0 },
1975 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1976 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1977 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1978 { "P", TCC_OPTION_P
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1979 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
1980 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
1981 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1982 { "bench", TCC_OPTION_bench
, 0 },
1983 #ifdef CONFIG_TCC_BACKTRACE
1984 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
1986 #ifdef CONFIG_TCC_BCHECK
1987 { "b", TCC_OPTION_b
, 0 },
1989 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1990 { "c", TCC_OPTION_c
, 0 },
1991 { "dumpversion", TCC_OPTION_dumpversion
, 0},
1992 { "d", TCC_OPTION_d
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1993 #ifdef TCC_TARGET_ARM
1994 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
1996 { "static", TCC_OPTION_static
, 0 },
1997 { "std", TCC_OPTION_std
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1998 { "shared", TCC_OPTION_shared
, 0 },
1999 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
2000 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
2001 { "pedantic", TCC_OPTION_pedantic
, 0},
2002 { "pthread", TCC_OPTION_pthread
, 0},
2003 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2004 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
2005 { "r", TCC_OPTION_r
, 0 },
2006 { "s", TCC_OPTION_s
, 0 },
2007 { "traditional", TCC_OPTION_traditional
, 0 },
2008 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2009 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2010 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2011 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
2012 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2013 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
2014 { "iwithprefix", TCC_OPTION_iwithprefix
, TCC_OPTION_HAS_ARG
},
2015 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
2016 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
2017 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
2018 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2019 { "w", TCC_OPTION_w
, 0 },
2020 { "pipe", TCC_OPTION_pipe
, 0},
2021 { "E", TCC_OPTION_E
, 0},
2022 { "MD", TCC_OPTION_MD
, 0},
2023 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
2024 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
2028 static void parse_option_D(TCCState
*s1
, const char *optarg
)
2030 char *sym
= tcc_strdup(optarg
);
2031 char *value
= strchr(sym
, '=');
2034 tcc_define_symbol(s1
, sym
, value
);
2038 static void args_parser_add_file(TCCState
*s
, const char* filename
, int filetype
)
2040 int len
= strlen(filename
);
2041 char *p
= tcc_malloc(len
+ 2);
2046 /* use a file extension to detect a filetype */
2047 const char *ext
= tcc_fileextension(filename
);
2050 if (!strcmp(ext
, "S"))
2051 *p
= TCC_FILETYPE_ASM_PP
;
2053 if (!strcmp(ext
, "s"))
2054 *p
= TCC_FILETYPE_ASM
;
2056 if (!PATHCMP(ext
, "c") || !PATHCMP(ext
, "i"))
2057 *p
= TCC_FILETYPE_C
;
2059 *p
= TCC_FILETYPE_BINARY
;
2062 *p
= TCC_FILETYPE_C
;
2065 strcpy(p
+1, filename
);
2066 dynarray_add((void ***)&s
->files
, &s
->nb_files
, p
);
2069 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
2071 const TCCOption
*popt
;
2072 const char *optarg
, *r
;
2078 /* collect -Wl options for input such as "-Wl,-rpath -Wl,<path>" */
2080 cstr_new(&linker_arg
);
2082 while (optind
< argc
) {
2085 if (r
[0] != '-' || r
[1] == '\0') {
2086 args_parser_add_file(s
, r
, filetype
);
2089 /* argv[0] will be this file */
2095 /* find option in table */
2096 for(popt
= tcc_options
; ; ++popt
) {
2097 const char *p1
= popt
->name
;
2098 const char *r1
= r
+ 1;
2100 tcc_error("invalid option -- '%s'", r
);
2101 if (!strstart(p1
, &r1
))
2104 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
2105 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
2107 tcc_error("argument to '%s' is missing", r
);
2108 optarg
= argv
[optind
++];
2110 } else if (*r1
!= '\0')
2115 switch(popt
->index
) {
2116 case TCC_OPTION_HELP
:
2119 tcc_add_include_path(s
, optarg
);
2122 parse_option_D(s
, optarg
);
2125 tcc_undefine_symbol(s
, optarg
);
2128 tcc_add_library_path(s
, optarg
);
2131 /* set tcc utilities path (mainly for tcc development) */
2132 tcc_set_lib_path(s
, optarg
);
2135 args_parser_add_file(s
, r
, TCC_FILETYPE_BINARY
);
2138 case TCC_OPTION_pthread
:
2139 parse_option_D(s
, "_REENTRANT");
2142 case TCC_OPTION_bench
:
2145 #ifdef CONFIG_TCC_BACKTRACE
2147 tcc_set_num_callers(atoi(optarg
));
2150 #ifdef CONFIG_TCC_BCHECK
2152 s
->do_bounds_check
= 1;
2161 tcc_warning("-c: some compiler action already specified (%d)", s
->output_type
);
2162 s
->output_type
= TCC_OUTPUT_OBJ
;
2168 if (s
->warn_unsupported
)
2169 goto unsupported_option
;
2170 tcc_error("invalid option -- '%s'", r
);
2173 #ifdef TCC_TARGET_ARM
2174 case TCC_OPTION_float_abi
:
2175 /* tcc doesn't support soft float yet */
2176 if (!strcmp(optarg
, "softfp")) {
2177 s
->float_abi
= ARM_SOFTFP_FLOAT
;
2178 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
2179 } else if (!strcmp(optarg
, "hard"))
2180 s
->float_abi
= ARM_HARD_FLOAT
;
2182 tcc_error("unsupported float abi '%s'", optarg
);
2185 case TCC_OPTION_static
:
2188 case TCC_OPTION_std
:
2189 /* silently ignore, a current purpose:
2190 allow to use a tcc as a reference compiler for "make test" */
2192 case TCC_OPTION_shared
:
2194 tcc_warning("-shared: some compiler action already specified (%d)", s
->output_type
);
2195 s
->output_type
= TCC_OUTPUT_DLL
;
2197 case TCC_OPTION_soname
:
2198 s
->soname
= tcc_strdup(optarg
);
2201 s
->option_m
= tcc_strdup(optarg
);
2205 tcc_warning("multiple -o option");
2206 tcc_free(s
->outfile
);
2208 s
->outfile
= tcc_strdup(optarg
);
2211 /* generate a .o merging several output files */
2213 tcc_warning("-r: some compiler action already specified (%d)", s
->output_type
);
2215 s
->output_type
= TCC_OUTPUT_OBJ
;
2217 case TCC_OPTION_isystem
:
2218 tcc_add_sysinclude_path(s
, optarg
);
2220 case TCC_OPTION_iwithprefix
:
2223 int buf_size
= sizeof(buf
)-1;
2226 char *sysroot
= "{B}/";
2227 int len
= strlen(sysroot
);
2230 strncpy(p
, sysroot
, len
);
2234 len
= strlen(optarg
);
2237 strncpy(p
, optarg
, len
+1);
2238 tcc_add_sysinclude_path(s
, buf
);
2241 case TCC_OPTION_nostdinc
:
2244 case TCC_OPTION_nostdlib
:
2247 case TCC_OPTION_print_search_dirs
:
2248 s
->print_search_dirs
= 1;
2250 case TCC_OPTION_run
:
2252 tcc_warning("-run: some compiler action already specified (%d)", s
->output_type
);
2253 s
->output_type
= TCC_OUTPUT_MEMORY
;
2254 tcc_set_options(s
, optarg
);
2258 do ++s
->verbose
; while (*optarg
++ == 'v');
2261 if (tcc_set_flag(s
, optarg
, 1) < 0 && s
->warn_unsupported
)
2262 goto unsupported_option
;
2265 if (tcc_set_warning(s
, optarg
, 1) < 0 &&
2266 s
->warn_unsupported
)
2267 goto unsupported_option
;
2272 case TCC_OPTION_rdynamic
:
2276 if (linker_arg
.size
)
2277 --linker_arg
.size
, cstr_ccat(&linker_arg
, ',');
2278 cstr_cat(&linker_arg
, optarg
);
2279 cstr_ccat(&linker_arg
, '\0');
2283 tcc_warning("-E: some compiler action already specified (%d)", s
->output_type
);
2284 s
->output_type
= TCC_OUTPUT_PREPROCESS
;
2287 s
->Pflag
= atoi(optarg
) + 1;
2293 s
->deps_outfile
= tcc_strdup(optarg
);
2295 case TCC_OPTION_dumpversion
:
2296 printf ("%s\n", TCC_VERSION
);
2301 case TCC_OPTION_traditional
:
2305 filetype
= TCC_FILETYPE_C
;
2308 filetype
= TCC_FILETYPE_ASM_PP
;
2313 tcc_warning("unsupported language '%s'", optarg
);
2317 int opt
= atoi(optarg
);
2318 char *sym
= "__OPTIMIZE__";
2320 tcc_define_symbol(s
, sym
, 0);
2322 tcc_undefine_symbol(s
, sym
);
2325 case TCC_OPTION_pedantic
:
2326 case TCC_OPTION_pipe
:
2330 if (s
->warn_unsupported
) {
2332 tcc_warning("unsupported option '%s'", r
);
2338 if (s
->output_type
== 0)
2339 s
->output_type
= TCC_OUTPUT_EXE
;
2341 if (pthread
&& s
->output_type
!= TCC_OUTPUT_OBJ
)
2342 tcc_set_options(s
, "-lpthread");
2344 if (s
->output_type
== TCC_OUTPUT_EXE
)
2345 tcc_set_linker(s
, (const char *)linker_arg
.data
);
2346 cstr_free(&linker_arg
);
2351 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *str
)
2358 argc
= 0, argv
= NULL
;
2360 while (is_space(*str
))
2365 while (*str
!= '\0' && !is_space(*str
))
2368 arg
= tcc_malloc(len
+ 1);
2369 pstrncpy(arg
, s1
, len
);
2370 dynarray_add((void ***)&argv
, &argc
, arg
);
2372 ret
= tcc_parse_args(s
, argc
, argv
);
2373 dynarray_reset(&argv
, &argc
);
2377 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
2380 tt
= (double)total_time
/ 1000000.0;
2383 if (total_bytes
< 1)
2385 fprintf(stderr
, "%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
2386 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
2387 tt
, (int)(total_lines
/ tt
),
2388 total_bytes
/ tt
/ 1000000.0);
2391 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
2395 path
= getenv("C_INCLUDE_PATH");
2397 tcc_add_include_path(s
, path
);
2399 path
= getenv("CPATH");
2401 tcc_add_include_path(s
, path
);
2403 path
= getenv("LIBRARY_PATH");
2405 tcc_add_library_path(s
, path
);