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(void)
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(void)
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
;
419 #undef MEM_DEBUG_MAGIC1
420 #undef MEM_DEBUG_MAGIC2
421 #undef MEM_DEBUG_FILE_LEN
425 #define free(p) use_tcc_free(p)
426 #define malloc(s) use_tcc_malloc(s)
427 #define realloc(p, s) use_tcc_realloc(p, s)
429 /********************************************************/
432 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
439 /* every power of two we double array size */
440 if ((nb
& (nb
- 1)) == 0) {
445 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
452 ST_FUNC
void dynarray_reset(void *pp
, int *n
)
455 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
458 tcc_free(*(void**)pp
);
462 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
470 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
471 if (c
== '{' && p
[1] && p
[2] == '}') {
474 cstr_cat(&str
, s
->tcc_lib_path
);
479 cstr_ccat(&str
, '\0');
480 dynarray_add(p_ary
, p_nb_ary
, str
.data
);
485 /********************************************************/
487 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
491 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
492 strcpy(sec
->name
, name
);
493 sec
->sh_type
= sh_type
;
494 sec
->sh_flags
= sh_flags
;
502 sec
->sh_addralign
= 4;
505 sec
->sh_addralign
= 1;
508 sec
->sh_addralign
= 32; /* default conservative alignment */
512 if (sh_flags
& SHF_PRIVATE
) {
513 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
515 sec
->sh_num
= s1
->nb_sections
;
516 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
522 static void free_section(Section
*s
)
527 /* realloc section and set its content to zero */
528 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
533 size
= sec
->data_allocated
;
536 while (size
< new_size
)
538 data
= tcc_realloc(sec
->data
, size
);
539 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
541 sec
->data_allocated
= size
;
544 /* reserve at least 'size' bytes in section 'sec' from
546 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
)
548 size_t offset
, offset1
;
550 offset
= sec
->data_offset
;
551 offset1
= offset
+ size
;
552 if (offset1
> sec
->data_allocated
)
553 section_realloc(sec
, offset1
);
554 sec
->data_offset
= offset1
;
555 return sec
->data
+ offset
;
558 /* reserve at least 'size' bytes from section start */
559 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
561 if (size
> sec
->data_allocated
)
562 section_realloc(sec
, size
);
563 if (size
> sec
->data_offset
)
564 sec
->data_offset
= size
;
567 /* return a reference to a section, and create it if it does not
569 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
573 for(i
= 1; i
< s1
->nb_sections
; i
++) {
574 sec
= s1
->sections
[i
];
575 if (!strcmp(name
, sec
->name
))
578 /* sections are created as PROGBITS */
579 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
582 /* update sym->c so that it points to an external symbol in section
583 'section' with value 'value' */
584 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
585 addr_t value
, unsigned long size
,
586 int can_add_underscore
)
588 int sym_type
, sym_bind
, sh_num
, info
, other
;
593 #ifdef CONFIG_TCC_BCHECK
599 else if (section
== SECTION_ABS
)
602 sh_num
= section
->sh_num
;
604 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
606 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
607 sym_type
= STT_NOTYPE
;
609 sym_type
= STT_OBJECT
;
612 if (sym
->type
.t
& VT_STATIC
)
613 sym_bind
= STB_LOCAL
;
615 if (sym
->type
.t
& VT_WEAK
)
618 sym_bind
= STB_GLOBAL
;
622 name
= get_tok_str(sym
->v
, NULL
);
623 #ifdef CONFIG_TCC_BCHECK
624 if (tcc_state
->do_bounds_check
) {
625 /* XXX: avoid doing that for statics ? */
626 /* if bound checking is activated, we change some function
627 names by adding the "__bound" prefix */
630 /* XXX: we rely only on malloc hooks */
643 strcpy(buf
, "__bound_");
653 if (sym
->type
.t
& VT_EXPORT
)
654 other
|= ST_PE_EXPORT
;
655 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
656 Sym
*ref
= sym
->type
.ref
;
657 if (ref
->a
.func_export
)
658 other
|= ST_PE_EXPORT
;
659 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
660 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
662 other
|= ST_PE_STDCALL
;
663 can_add_underscore
= 0;
666 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
667 other
|= ST_PE_IMPORT
;
668 if (sym
->type
.t
& VT_IMPORT
)
669 other
|= ST_PE_IMPORT
;
672 if (! (sym
->type
.t
& VT_STATIC
))
673 other
= (sym
->type
.t
& VT_VIS_MASK
) >> VT_VIS_SHIFT
;
675 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
677 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
680 if (sym
->asm_label
) {
681 name
= sym
->asm_label
;
683 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
684 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
686 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
687 esym
->st_value
= value
;
688 esym
->st_size
= size
;
689 esym
->st_shndx
= sh_num
;
693 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
694 addr_t value
, unsigned long size
)
696 put_extern_sym2(sym
, section
, value
, size
, 1);
699 /* add a new relocation entry to symbol 'sym' in section 's' */
700 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
,
706 put_extern_sym(sym
, NULL
, 0, 0);
709 /* now we can add ELF relocation info */
710 put_elf_reloca(symtab_section
, s
, offset
, type
, c
, addend
);
713 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
715 greloca(s
, sym
, offset
, type
, 0);
718 /********************************************************/
720 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
724 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
727 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
731 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
735 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
738 BufferedFile
**pf
, *f
;
741 /* use upper file if inline ":asm:" or token ":paste:" */
742 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
745 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
746 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
747 (*pf
)->filename
, (*pf
)->line_num
);
748 if (f
->line_num
> 0) {
749 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
750 f
->filename
, f
->line_num
);
752 strcat_printf(buf
, sizeof(buf
), "%s: ",
756 strcat_printf(buf
, sizeof(buf
), "tcc: ");
759 strcat_printf(buf
, sizeof(buf
), "warning: ");
761 strcat_printf(buf
, sizeof(buf
), "error: ");
762 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
764 if (!s1
->error_func
) {
765 /* default case: stderr */
766 if (s1
->ppfp
) /* print a newline during tcc -E */
767 fprintf(s1
->ppfp
, "\n"), fflush(s1
->ppfp
);
768 fprintf(stderr
, "%s\n", buf
);
769 fflush(stderr
); /* print error/warning now (win32) */
771 s1
->error_func(s1
->error_opaque
, buf
);
773 if (!is_warning
|| s1
->warn_error
)
777 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
778 void (*error_func
)(void *opaque
, const char *msg
))
780 s
->error_opaque
= error_opaque
;
781 s
->error_func
= error_func
;
784 /* error without aborting current compilation */
785 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
787 TCCState
*s1
= tcc_state
;
791 error1(s1
, 0, fmt
, ap
);
795 PUB_FUNC
void tcc_error(const char *fmt
, ...)
797 TCCState
*s1
= tcc_state
;
801 error1(s1
, 0, fmt
, ap
);
803 /* better than nothing: in some cases, we accept to handle errors */
804 if (s1
->error_set_jmp_enabled
) {
805 longjmp(s1
->error_jmp_buf
, 1);
807 /* XXX: eliminate this someday */
812 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
814 TCCState
*s1
= tcc_state
;
821 error1(s1
, 1, fmt
, ap
);
825 /********************************************************/
828 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
831 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
833 bf
= tcc_mallocz(sizeof(BufferedFile
) + buflen
);
834 bf
->buf_ptr
= bf
->buffer
;
835 bf
->buf_end
= bf
->buffer
+ initlen
;
836 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
837 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
839 normalize_slashes(bf
->filename
);
842 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
848 ST_FUNC
void tcc_close(void)
850 BufferedFile
*bf
= file
;
853 total_lines
+= bf
->line_num
;
859 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
862 if (strcmp(filename
, "-") == 0)
863 fd
= 0, filename
= "<stdin>";
865 fd
= open(filename
, O_RDONLY
| O_BINARY
);
866 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
867 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
868 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
872 tcc_open_bf(s1
, filename
, 0);
877 /* compile the C file opened in 'file'. Return non zero if errors. */
878 static int tcc_compile(TCCState
*s1
)
882 volatile int section_sym
;
885 printf("%s: **** new file\n", file
->filename
);
889 cur_text_section
= NULL
;
891 anon_sym
= SYM_FIRST_ANOM
;
893 /* file info: full path + filename */
894 section_sym
= 0; /* avoid warning */
896 section_sym
= put_elf_sym(symtab_section
, 0, 0,
897 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
898 text_section
->sh_num
, NULL
);
899 getcwd(buf
, sizeof(buf
));
901 normalize_slashes(buf
);
903 pstrcat(buf
, sizeof(buf
), "/");
904 put_stabs_r(buf
, N_SO
, 0, 0,
905 text_section
->data_offset
, text_section
, section_sym
);
906 put_stabs_r(file
->filename
, N_SO
, 0, 0,
907 text_section
->data_offset
, text_section
, section_sym
);
909 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
910 symbols can be safely used */
911 put_elf_sym(symtab_section
, 0, 0,
912 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
913 SHN_ABS
, file
->filename
);
915 /* define some often used types */
918 char_pointer_type
.t
= VT_BYTE
;
919 mk_pointer(&char_pointer_type
);
922 size_type
.t
= VT_INT
;
924 size_type
.t
= VT_LLONG
;
927 func_old_type
.t
= VT_FUNC
;
928 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
929 #ifdef TCC_TARGET_ARM
934 /* define 'void *alloca(unsigned int)' builtin function */
939 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
940 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
943 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
947 define_start
= define_stack
;
950 if (setjmp(s1
->error_jmp_buf
) == 0) {
952 s1
->error_set_jmp_enabled
= 1;
954 ch
= file
->buf_ptr
[0];
955 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
956 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
| PARSE_FLAG_TOK_STR
;
960 expect("declaration");
963 /* end of translation unit info */
965 put_stabs_r(NULL
, N_SO
, 0, 0,
966 text_section
->data_offset
, text_section
, section_sym
);
970 s1
->error_set_jmp_enabled
= 0;
972 /* reset define stack, but leave -Dsymbols (may be incorrect if
973 they are undefined) */
974 free_defines(define_start
);
976 gen_inline_functions();
978 sym_pop(&global_stack
, NULL
);
979 sym_pop(&local_stack
, NULL
);
981 return s1
->nb_errors
!= 0 ? -1 : 0;
984 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
989 tcc_open_bf(s
, "<string>", len
);
990 memcpy(file
->buffer
, str
, len
);
991 ret
= tcc_compile(s
);
996 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
997 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
1004 len2
= strlen(value
);
1006 /* init file structure */
1007 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
1008 memcpy(file
->buffer
, sym
, len1
);
1009 file
->buffer
[len1
] = ' ';
1010 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
1012 /* parse with define parser */
1013 ch
= file
->buf_ptr
[0];
1020 /* undefine a preprocessor symbol */
1021 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
1025 ts
= tok_alloc(sym
, strlen(sym
));
1026 s
= define_find(ts
->tok
);
1027 /* undefine symbol by putting an invalid name */
1032 /* cleanup all static data used during compilation */
1033 static void tcc_cleanup(void)
1035 if (NULL
== tcc_state
)
1039 preprocess_delete();
1041 /* free sym_pools */
1042 dynarray_reset(&sym_pools
, &nb_sym_pools
);
1044 cstr_free(&tokcstr
);
1045 /* reset symbol stack */
1046 sym_free_first
= NULL
;
1049 LIBTCCAPI TCCState
*tcc_new(void)
1057 s
= tcc_mallocz(sizeof(TCCState
));
1062 tcc_set_lib_path_w32(s
);
1064 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
1068 s
->include_stack_ptr
= s
->include_stack
;
1070 /* we add dummy defines for some special macros to speed up tests
1071 and to have working defined() */
1072 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
1073 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
1074 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
1075 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
1077 /* define __TINYC__ 92X */
1078 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
1079 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
1080 tcc_define_symbol(s
, "__TINYC__", buffer
);
1082 /* standard defines */
1083 tcc_define_symbol(s
, "__STDC__", NULL
);
1084 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
1085 tcc_define_symbol(s
, "__STDC_HOSTED__", NULL
);
1087 /* target defines */
1088 #if defined(TCC_TARGET_I386)
1089 tcc_define_symbol(s
, "__i386__", NULL
);
1090 tcc_define_symbol(s
, "__i386", NULL
);
1091 tcc_define_symbol(s
, "i386", NULL
);
1092 #elif defined(TCC_TARGET_X86_64)
1093 tcc_define_symbol(s
, "__x86_64__", NULL
);
1094 #elif defined(TCC_TARGET_ARM)
1095 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
1096 tcc_define_symbol(s
, "__arm_elf__", NULL
);
1097 tcc_define_symbol(s
, "__arm_elf", NULL
);
1098 tcc_define_symbol(s
, "arm_elf", NULL
);
1099 tcc_define_symbol(s
, "__arm__", NULL
);
1100 tcc_define_symbol(s
, "__arm", NULL
);
1101 tcc_define_symbol(s
, "arm", NULL
);
1102 tcc_define_symbol(s
, "__APCS_32__", NULL
);
1103 tcc_define_symbol(s
, "__ARMEL__", NULL
);
1104 #if defined(TCC_ARM_EABI)
1105 tcc_define_symbol(s
, "__ARM_EABI__", NULL
);
1107 #if defined(TCC_ARM_HARDFLOAT)
1108 s
->float_abi
= ARM_HARD_FLOAT
;
1109 tcc_define_symbol(s
, "__ARM_PCS_VFP", NULL
);
1111 s
->float_abi
= ARM_SOFTFP_FLOAT
;
1113 #elif defined(TCC_TARGET_ARM64)
1114 tcc_define_symbol(s
, "__aarch64__", NULL
);
1117 #ifdef TCC_TARGET_PE
1118 tcc_define_symbol(s
, "_WIN32", NULL
);
1119 # ifdef TCC_TARGET_X86_64
1120 tcc_define_symbol(s
, "_WIN64", NULL
);
1123 tcc_define_symbol(s
, "__unix__", NULL
);
1124 tcc_define_symbol(s
, "__unix", NULL
);
1125 tcc_define_symbol(s
, "unix", NULL
);
1126 # if defined(__linux)
1127 tcc_define_symbol(s
, "__linux__", NULL
);
1128 tcc_define_symbol(s
, "__linux", NULL
);
1130 # if defined(__FreeBSD__)
1132 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
1135 # if defined(__FreeBSD_kernel__)
1136 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
1140 /* TinyCC & gcc defines */
1141 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
1142 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
1143 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
1145 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1146 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1149 #ifdef TCC_TARGET_PE
1150 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
1151 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
1153 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
1154 /* wint_t is unsigned int by default, but (signed) int on BSDs
1155 and unsigned short on windows. Other OSes might have still
1156 other conventions, sigh. */
1157 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__)
1158 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1160 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1164 #ifndef TCC_TARGET_PE
1166 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1167 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1168 /* paths for crt objects */
1169 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1172 /* no section zero */
1173 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1175 /* create standard sections */
1176 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1177 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1178 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1180 /* symbols are always generated for linking stage */
1181 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1183 ".hashtab", SHF_PRIVATE
);
1184 strtab_section
= symtab_section
->link
;
1185 s
->symtab
= symtab_section
;
1187 /* private symbol table for dynamic symbols */
1188 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1190 ".dynhashtab", SHF_PRIVATE
);
1191 s
->alacarte_link
= 1;
1193 s
->warn_implicit_function_declaration
= 1;
1195 #ifdef CHAR_IS_UNSIGNED
1196 s
->char_is_unsigned
= 1;
1198 /* enable this if you want symbols with leading underscore on windows: */
1199 #if 0 /* def TCC_TARGET_PE */
1200 s
->leading_underscore
= 1;
1202 #ifdef TCC_TARGET_I386
1205 #ifdef TCC_IS_NATIVE
1206 s
->runtime_main
= "main";
1211 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1217 /* free all sections */
1218 for(i
= 1; i
< s1
->nb_sections
; i
++)
1219 free_section(s1
->sections
[i
]);
1220 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1222 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1223 free_section(s1
->priv_sections
[i
]);
1224 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1226 /* free any loaded DLLs */
1227 #ifdef TCC_IS_NATIVE
1228 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1229 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1231 dlclose(ref
->handle
);
1235 /* free loaded dlls array */
1236 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1238 /* free library paths */
1239 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1240 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1242 /* free include paths */
1243 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1244 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1245 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1247 tcc_free(s1
->tcc_lib_path
);
1248 tcc_free(s1
->soname
);
1249 tcc_free(s1
->rpath
);
1250 tcc_free(s1
->init_symbol
);
1251 tcc_free(s1
->fini_symbol
);
1252 tcc_free(s1
->outfile
);
1253 tcc_free(s1
->deps_outfile
);
1254 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1255 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1256 dynarray_reset(&s1
->pragma_libs
, &s1
->nb_pragma_libs
);
1258 #ifdef TCC_IS_NATIVE
1259 # ifdef HAVE_SELINUX
1260 munmap (s1
->write_mem
, s1
->mem_size
);
1261 munmap (s1
->runtime_mem
, s1
->mem_size
);
1263 tcc_free(s1
->runtime_mem
);
1267 tcc_free(s1
->sym_attrs
);
1272 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1274 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1278 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1280 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1284 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
, int filetype
)
1290 #ifdef CONFIG_TCC_ASM
1291 /* if .S file, define __ASSEMBLER__ like gcc does */
1292 if ((filetype
== TCC_FILETYPE_ASM
) || (filetype
== TCC_FILETYPE_ASM_PP
)) {
1293 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1294 parse_flags
= PARSE_FLAG_ASM_FILE
;
1299 ret
= tcc_open(s1
, filename
);
1301 if (flags
& AFF_PRINT_ERROR
)
1302 tcc_error_noabort("file '%s' not found", filename
);
1306 /* update target deps */
1307 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1308 tcc_strdup(filename
));
1310 if (flags
& AFF_PREPROCESS
) {
1311 ret
= tcc_preprocess(s1
);
1315 if (filetype
== TCC_FILETYPE_C
) {
1316 /* C file assumed */
1317 ret
= tcc_compile(s1
);
1321 #ifdef CONFIG_TCC_ASM
1322 if (filetype
== TCC_FILETYPE_ASM_PP
) {
1323 /* non preprocessed assembler */
1324 ret
= tcc_assemble(s1
, 1);
1328 if (filetype
== TCC_FILETYPE_ASM
) {
1329 /* preprocessed assembler */
1330 ret
= tcc_assemble(s1
, 0);
1336 /* assume executable format: auto guess file type */
1337 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1338 lseek(fd
, 0, SEEK_SET
);
1340 tcc_error_noabort("could not read header");
1344 if (size
== sizeof(ehdr
) &&
1345 ehdr
.e_ident
[0] == ELFMAG0
&&
1346 ehdr
.e_ident
[1] == ELFMAG1
&&
1347 ehdr
.e_ident
[2] == ELFMAG2
&&
1348 ehdr
.e_ident
[3] == ELFMAG3
) {
1350 /* do not display line number if error */
1352 if (ehdr
.e_type
== ET_REL
) {
1353 ret
= tcc_load_object_file(s1
, fd
, 0);
1357 #ifndef TCC_TARGET_PE
1358 if (ehdr
.e_type
== ET_DYN
) {
1359 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1360 #ifdef TCC_IS_NATIVE
1362 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1367 ret
= tcc_load_dll(s1
, fd
, filename
,
1368 (flags
& AFF_REFERENCED_DLL
) != 0);
1373 tcc_error_noabort("unrecognized ELF file");
1377 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1378 file
->line_num
= 0; /* do not display line number if error */
1379 ret
= tcc_load_archive(s1
, fd
);
1383 #ifdef TCC_TARGET_COFF
1384 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1385 ret
= tcc_load_coff(s1
, fd
);
1390 #ifdef TCC_TARGET_PE
1391 ret
= pe_load_file(s1
, filename
, fd
);
1393 /* as GNU ld, consider it is an ld script if not recognized */
1394 ret
= tcc_load_ldscript(s1
);
1397 tcc_error_noabort("unrecognized file type");
1404 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
, int filetype
)
1406 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1407 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
, filetype
);
1409 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
, filetype
);
1412 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1414 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1418 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1419 const char *filename
, int flags
, char **paths
, int nb_paths
)
1424 for(i
= 0; i
< nb_paths
; i
++) {
1425 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1426 if (tcc_add_file_internal(s
, buf
, flags
, TCC_FILETYPE_BINARY
) == 0)
1432 #ifndef TCC_TARGET_PE
1433 /* find and load a dll. Return non zero if not found */
1434 /* XXX: add '-rpath' option support ? */
1435 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1437 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1438 s
->library_paths
, s
->nb_library_paths
);
1442 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1444 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1445 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1446 tcc_error_noabort("file '%s' not found", filename
);
1450 /* the library name is the same as the argument of the '-l' option */
1451 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1453 #ifdef TCC_TARGET_PE
1454 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1455 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1457 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1458 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1461 if (0 == tcc_add_library_internal(s
, *pp
,
1462 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1469 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *libname
)
1471 int ret
= tcc_add_library(s
, libname
);
1473 tcc_error_noabort("cannot find library 'lib%s'", libname
);
1477 /* habdle #pragma comment(lib,) */
1478 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
)
1481 for (i
= 0; i
< s1
->nb_pragma_libs
; i
++)
1482 tcc_add_library_err(s1
, s1
->pragma_libs
[i
]);
1485 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1487 #ifdef TCC_TARGET_PE
1488 /* On x86_64 'val' might not be reachable with a 32bit offset.
1489 So it is handled here as if it were in a DLL. */
1490 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1492 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1493 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1499 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1501 s
->output_type
= output_type
;
1504 /* default include paths */
1505 /* -isystem paths have already been handled */
1506 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1509 /* if bound checking, then add corresponding sections */
1510 #ifdef CONFIG_TCC_BCHECK
1511 if (s
->do_bounds_check
) {
1513 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1514 /* create bounds sections */
1515 bounds_section
= new_section(s
, ".bounds",
1516 SHT_PROGBITS
, SHF_ALLOC
);
1517 lbounds_section
= new_section(s
, ".lbounds",
1518 SHT_PROGBITS
, SHF_ALLOC
);
1522 if (s
->char_is_unsigned
) {
1523 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1526 /* add debug sections */
1529 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1530 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1531 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1532 put_elf_str(stabstr_section
, "");
1533 stab_section
->link
= stabstr_section
;
1534 /* put first entry */
1535 put_stabs("", 0, 0, 0, 0);
1538 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1539 #ifdef TCC_TARGET_PE
1541 tcc_add_systemdir(s
);
1544 /* add libc crt1/crti objects */
1545 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1547 if (output_type
!= TCC_OUTPUT_DLL
)
1548 tcc_add_crt(s
, "crt1.o");
1549 tcc_add_crt(s
, "crti.o");
1553 #ifdef CONFIG_TCC_BCHECK
1554 if (s
->do_bounds_check
&& (output_type
== TCC_OUTPUT_EXE
))
1556 /* force a bcheck.o linking */
1557 addr_t func
= TOK___bound_init
;
1558 Sym
*sym
= external_global_sym(func
, &func_old_type
, 0);
1560 put_extern_sym(sym
, NULL
, 0, 0);
1566 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1568 tcc_free(s
->tcc_lib_path
);
1569 s
->tcc_lib_path
= tcc_strdup(path
);
1572 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1573 #define FD_INVERT 0x0002 /* invert value before storing */
1575 typedef struct FlagDef
{
1581 static const FlagDef warning_defs
[] = {
1582 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1583 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1584 { offsetof(TCCState
, warn_error
), 0, "error" },
1585 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1586 "implicit-function-declaration" },
1589 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1590 const char *name
, int value
)
1597 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1601 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1602 if (!strcmp(r
, p
->name
))
1607 if (p
->flags
& FD_INVERT
)
1609 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1613 /* set/reset a warning */
1614 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1619 if (!strcmp(warning_name
, "all")) {
1620 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1621 if (p
->flags
& WD_ALL
)
1622 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1626 return set_flag(s
, warning_defs
, countof(warning_defs
),
1627 warning_name
, value
);
1631 static const FlagDef flag_defs
[] = {
1632 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1633 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1634 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1635 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1636 { offsetof(TCCState
, ms_extensions
), 0, "ms-extensions" },
1637 { offsetof(TCCState
, old_struct_init_code
), 0, "old-struct-init-code" },
1638 { offsetof(TCCState
, dollars_in_identifiers
), 0, "dollars-in-identifiers" },
1641 /* set/reset a flag */
1642 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1644 return set_flag(s
, flag_defs
, countof(flag_defs
),
1649 static int strstart(const char *val
, const char **str
)
1664 /* Like strstart, but automatically takes into account that ld options can
1666 * - start with double or single dash (e.g. '--soname' or '-soname')
1667 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1668 * or '-Wl,-soname=x.so')
1670 * you provide `val` always in 'option[=]' form (no leading -)
1672 static int link_option(const char *str
, const char *val
, const char **ptr
)
1676 /* there should be 1 or 2 dashes */
1682 /* then str & val should match (potentialy up to '=') */
1686 while (*q
!= '\0' && *q
!= '=') {
1693 /* '=' near eos means ',' or '=' is ok */
1695 if (*p
!= ',' && *p
!= '=')
1706 static const char *skip_linker_arg(const char **str
)
1708 const char *s1
= *str
;
1709 const char *s2
= strchr(s1
, ',');
1710 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1714 static char *copy_linker_arg(const char *p
)
1717 skip_linker_arg(&q
);
1718 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1721 /* set linker options */
1722 static int tcc_set_linker(TCCState
*s
, const char *option
)
1724 while (option
&& *option
) {
1726 const char *p
= option
;
1730 if (link_option(option
, "Bsymbolic", &p
)) {
1732 } else if (link_option(option
, "nostdlib", &p
)) {
1734 } else if (link_option(option
, "fini=", &p
)) {
1735 s
->fini_symbol
= copy_linker_arg(p
);
1737 } else if (link_option(option
, "image-base=", &p
)
1738 || link_option(option
, "Ttext=", &p
)) {
1739 s
->text_addr
= strtoull(p
, &end
, 16);
1740 s
->has_text_addr
= 1;
1741 } else if (link_option(option
, "init=", &p
)) {
1742 s
->init_symbol
= copy_linker_arg(p
);
1744 } else if (link_option(option
, "oformat=", &p
)) {
1745 #if defined(TCC_TARGET_PE)
1746 if (strstart("pe-", &p
)) {
1747 #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
1748 if (strstart("elf64-", &p
)) {
1750 if (strstart("elf32-", &p
)) {
1752 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1753 } else if (!strcmp(p
, "binary")) {
1754 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1755 #ifdef TCC_TARGET_COFF
1756 } else if (!strcmp(p
, "coff")) {
1757 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1762 } else if (link_option(option
, "as-needed", &p
)) {
1764 } else if (link_option(option
, "O", &p
)) {
1766 } else if (link_option(option
, "rpath=", &p
)) {
1767 s
->rpath
= copy_linker_arg(p
);
1768 } else if (link_option(option
, "section-alignment=", &p
)) {
1769 s
->section_align
= strtoul(p
, &end
, 16);
1770 } else if (link_option(option
, "soname=", &p
)) {
1771 s
->soname
= copy_linker_arg(p
);
1772 #ifdef TCC_TARGET_PE
1773 } else if (link_option(option
, "file-alignment=", &p
)) {
1774 s
->pe_file_align
= strtoul(p
, &end
, 16);
1775 } else if (link_option(option
, "stack=", &p
)) {
1776 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1777 } else if (link_option(option
, "subsystem=", &p
)) {
1778 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1779 if (!strcmp(p
, "native")) {
1780 s
->pe_subsystem
= 1;
1781 } else if (!strcmp(p
, "console")) {
1782 s
->pe_subsystem
= 3;
1783 } else if (!strcmp(p
, "gui")) {
1784 s
->pe_subsystem
= 2;
1785 } else if (!strcmp(p
, "posix")) {
1786 s
->pe_subsystem
= 7;
1787 } else if (!strcmp(p
, "efiapp")) {
1788 s
->pe_subsystem
= 10;
1789 } else if (!strcmp(p
, "efiboot")) {
1790 s
->pe_subsystem
= 11;
1791 } else if (!strcmp(p
, "efiruntime")) {
1792 s
->pe_subsystem
= 12;
1793 } else if (!strcmp(p
, "efirom")) {
1794 s
->pe_subsystem
= 13;
1795 #elif defined(TCC_TARGET_ARM)
1796 if (!strcmp(p
, "wince")) {
1797 s
->pe_subsystem
= 9;
1805 if (ignoring
&& s
->warn_unsupported
) err
: {
1807 pstrcpy(buf
, sizeof buf
, e
= copy_linker_arg(option
)), tcc_free(e
);
1809 tcc_warning("unsupported linker option '%s'", buf
);
1811 tcc_error("unsupported linker option '%s'", buf
);
1813 option
= skip_linker_arg(&p
);
1818 typedef struct TCCOption
{
1838 TCC_OPTION_dumpversion
,
1839 TCC_OPTION_float_abi
,
1847 TCC_OPTION_traditional
,
1854 TCC_OPTION_iwithprefix
,
1855 TCC_OPTION_nostdinc
,
1856 TCC_OPTION_nostdlib
,
1857 TCC_OPTION_print_search_dirs
,
1858 TCC_OPTION_rdynamic
,
1859 TCC_OPTION_pedantic
,
1871 #define TCC_OPTION_HAS_ARG 0x0001
1872 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1874 static const TCCOption tcc_options
[] = {
1875 { "h", TCC_OPTION_HELP
, 0 },
1876 { "-help", TCC_OPTION_HELP
, 0 },
1877 { "?", TCC_OPTION_HELP
, 0 },
1878 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1879 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1880 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1881 { "P", TCC_OPTION_P
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1882 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
1883 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
1884 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1885 { "bench", TCC_OPTION_bench
, 0 },
1886 #ifdef CONFIG_TCC_BACKTRACE
1887 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
1889 #ifdef CONFIG_TCC_BCHECK
1890 { "b", TCC_OPTION_b
, 0 },
1892 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1893 { "c", TCC_OPTION_c
, 0 },
1894 { "dumpversion", TCC_OPTION_dumpversion
, 0},
1895 #ifdef TCC_TARGET_ARM
1896 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
1898 { "static", TCC_OPTION_static
, 0 },
1899 { "std", TCC_OPTION_std
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1900 { "shared", TCC_OPTION_shared
, 0 },
1901 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
1902 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
1903 { "pedantic", TCC_OPTION_pedantic
, 0},
1904 { "pthread", TCC_OPTION_pthread
, 0},
1905 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1906 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
1907 { "r", TCC_OPTION_r
, 0 },
1908 { "s", TCC_OPTION_s
, 0 },
1909 { "traditional", TCC_OPTION_traditional
, 0 },
1910 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1911 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1912 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1913 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
1914 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1915 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
1916 { "iwithprefix", TCC_OPTION_iwithprefix
, TCC_OPTION_HAS_ARG
},
1917 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
1918 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
1919 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
1920 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1921 { "w", TCC_OPTION_w
, 0 },
1922 { "pipe", TCC_OPTION_pipe
, 0},
1923 { "E", TCC_OPTION_E
, 0},
1924 { "MD", TCC_OPTION_MD
, 0},
1925 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
1926 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
1930 static void parse_option_D(TCCState
*s1
, const char *optarg
)
1932 char *sym
= tcc_strdup(optarg
);
1933 char *value
= strchr(sym
, '=');
1936 tcc_define_symbol(s1
, sym
, value
);
1940 static void args_parser_add_file(TCCState
*s
, const char* filename
, int filetype
)
1942 int len
= strlen(filename
);
1943 char *p
= tcc_malloc(len
+ 2);
1948 /* use a file extension to detect a filetype */
1949 const char *ext
= tcc_fileextension(filename
);
1952 if (!strcmp(ext
, "S"))
1953 *p
= TCC_FILETYPE_ASM_PP
;
1955 if (!strcmp(ext
, "s"))
1956 *p
= TCC_FILETYPE_ASM
;
1958 if (!PATHCMP(ext
, "c") || !PATHCMP(ext
, "i"))
1959 *p
= TCC_FILETYPE_C
;
1961 *p
= TCC_FILETYPE_BINARY
;
1964 *p
= TCC_FILETYPE_C
;
1967 strcpy(p
+1, filename
);
1968 dynarray_add((void ***)&s
->files
, &s
->nb_files
, p
);
1971 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
1973 const TCCOption
*popt
;
1974 const char *optarg
, *r
;
1980 /* collect -Wl options for input such as "-Wl,-rpath -Wl,<path>" */
1982 cstr_new(&linker_arg
);
1984 while (optind
< argc
) {
1987 if (r
[0] != '-' || r
[1] == '\0') {
1988 args_parser_add_file(s
, r
, filetype
);
1991 /* argv[0] will be this file */
1997 /* find option in table */
1998 for(popt
= tcc_options
; ; ++popt
) {
1999 const char *p1
= popt
->name
;
2000 const char *r1
= r
+ 1;
2002 tcc_error("invalid option -- '%s'", r
);
2003 if (!strstart(p1
, &r1
))
2006 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
2007 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
2009 tcc_error("argument to '%s' is missing", r
);
2010 optarg
= argv
[optind
++];
2012 } else if (*r1
!= '\0')
2017 switch(popt
->index
) {
2018 case TCC_OPTION_HELP
:
2021 tcc_add_include_path(s
, optarg
);
2024 parse_option_D(s
, optarg
);
2027 tcc_undefine_symbol(s
, optarg
);
2030 tcc_add_library_path(s
, optarg
);
2033 /* set tcc utilities path (mainly for tcc development) */
2034 tcc_set_lib_path(s
, optarg
);
2037 args_parser_add_file(s
, r
, TCC_FILETYPE_BINARY
);
2040 case TCC_OPTION_pthread
:
2041 parse_option_D(s
, "_REENTRANT");
2044 case TCC_OPTION_bench
:
2047 #ifdef CONFIG_TCC_BACKTRACE
2049 tcc_set_num_callers(atoi(optarg
));
2052 #ifdef CONFIG_TCC_BCHECK
2054 s
->do_bounds_check
= 1;
2063 tcc_warning("-c: some compiler action already specified (%d)", s
->output_type
);
2064 s
->output_type
= TCC_OUTPUT_OBJ
;
2066 #ifdef TCC_TARGET_ARM
2067 case TCC_OPTION_float_abi
:
2068 /* tcc doesn't support soft float yet */
2069 if (!strcmp(optarg
, "softfp")) {
2070 s
->float_abi
= ARM_SOFTFP_FLOAT
;
2071 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
2072 } else if (!strcmp(optarg
, "hard"))
2073 s
->float_abi
= ARM_HARD_FLOAT
;
2075 tcc_error("unsupported float abi '%s'", optarg
);
2078 case TCC_OPTION_static
:
2081 case TCC_OPTION_std
:
2082 /* silently ignore, a current purpose:
2083 allow to use a tcc as a reference compiler for "make test" */
2085 case TCC_OPTION_shared
:
2087 tcc_warning("-shared: some compiler action already specified (%d)", s
->output_type
);
2088 s
->output_type
= TCC_OUTPUT_DLL
;
2090 case TCC_OPTION_soname
:
2091 s
->soname
= tcc_strdup(optarg
);
2094 s
->option_m
= tcc_strdup(optarg
);
2098 tcc_warning("multiple -o option");
2099 tcc_free(s
->outfile
);
2101 s
->outfile
= tcc_strdup(optarg
);
2104 /* generate a .o merging several output files */
2106 tcc_warning("-r: some compiler action already specified (%d)", s
->output_type
);
2108 s
->output_type
= TCC_OUTPUT_OBJ
;
2110 case TCC_OPTION_isystem
:
2111 tcc_add_sysinclude_path(s
, optarg
);
2113 case TCC_OPTION_iwithprefix
:
2116 int buf_size
= sizeof(buf
)-1;
2119 char *sysroot
= "{B}/";
2120 int len
= strlen(sysroot
);
2123 strncpy(p
, sysroot
, len
);
2127 len
= strlen(optarg
);
2130 strncpy(p
, optarg
, len
+1);
2131 tcc_add_sysinclude_path(s
, buf
);
2134 case TCC_OPTION_nostdinc
:
2137 case TCC_OPTION_nostdlib
:
2140 case TCC_OPTION_print_search_dirs
:
2141 s
->print_search_dirs
= 1;
2143 case TCC_OPTION_run
:
2145 tcc_warning("-run: some compiler action already specified (%d)", s
->output_type
);
2146 s
->output_type
= TCC_OUTPUT_MEMORY
;
2147 tcc_set_options(s
, optarg
);
2151 do ++s
->verbose
; while (*optarg
++ == 'v');
2154 if (tcc_set_flag(s
, optarg
, 1) < 0 && s
->warn_unsupported
)
2155 goto unsupported_option
;
2158 if (tcc_set_warning(s
, optarg
, 1) < 0 &&
2159 s
->warn_unsupported
)
2160 goto unsupported_option
;
2165 case TCC_OPTION_rdynamic
:
2169 if (linker_arg
.size
)
2170 --linker_arg
.size
, cstr_ccat(&linker_arg
, ',');
2171 cstr_cat(&linker_arg
, optarg
);
2172 cstr_ccat(&linker_arg
, '\0');
2176 tcc_warning("-E: some compiler action already specified (%d)", s
->output_type
);
2177 s
->output_type
= TCC_OUTPUT_PREPROCESS
;
2180 s
->Pflag
= atoi(optarg
) + 1;
2186 s
->deps_outfile
= tcc_strdup(optarg
);
2188 case TCC_OPTION_dumpversion
:
2189 printf ("%s\n", TCC_VERSION
);
2194 case TCC_OPTION_traditional
:
2198 filetype
= TCC_FILETYPE_C
;
2201 filetype
= TCC_FILETYPE_ASM_PP
;
2206 tcc_warning("unsupported language '%s'", optarg
);
2210 int opt
= atoi(optarg
);
2211 char *sym
= "__OPTIMIZE__";
2213 tcc_define_symbol(s
, sym
, 0);
2215 tcc_undefine_symbol(s
, sym
);
2218 case TCC_OPTION_pedantic
:
2219 case TCC_OPTION_pipe
:
2223 if (s
->warn_unsupported
) {
2225 tcc_warning("unsupported option '%s'", r
);
2231 if (s
->output_type
== 0)
2232 s
->output_type
= TCC_OUTPUT_EXE
;
2234 if (pthread
&& s
->output_type
!= TCC_OUTPUT_OBJ
)
2235 tcc_set_options(s
, "-lpthread");
2237 if (s
->output_type
== TCC_OUTPUT_EXE
)
2238 tcc_set_linker(s
, (const char *)linker_arg
.data
);
2239 cstr_free(&linker_arg
);
2244 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *str
)
2251 argc
= 0, argv
= NULL
;
2253 while (is_space(*str
))
2258 while (*str
!= '\0' && !is_space(*str
))
2261 arg
= tcc_malloc(len
+ 1);
2262 pstrncpy(arg
, s1
, len
);
2263 dynarray_add((void ***)&argv
, &argc
, arg
);
2265 ret
= tcc_parse_args(s
, argc
, argv
);
2266 dynarray_reset(&argv
, &argc
);
2270 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
2273 tt
= (double)total_time
/ 1000000.0;
2276 if (total_bytes
< 1)
2278 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
2279 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
2280 tt
, (int)(total_lines
/ tt
),
2281 total_bytes
/ tt
/ 1000000.0);
2284 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
2288 path
= getenv("C_INCLUDE_PATH");
2290 tcc_add_include_path(s
, path
);
2292 path
= getenv("CPATH");
2294 tcc_add_include_path(s
, path
);
2296 path
= getenv("LIBRARY_PATH");
2298 tcc_add_library_path(s
, path
);