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 */
202 ST_DATA
int mem_cur_size
;
203 ST_DATA
int mem_max_size
;
204 unsigned malloc_usable_size(void*);
207 PUB_FUNC
void tcc_free(void *ptr
)
210 mem_cur_size
-= malloc_usable_size(ptr
);
215 PUB_FUNC
void *tcc_malloc(unsigned long size
)
220 tcc_error("memory full (malloc)");
222 mem_cur_size
+= malloc_usable_size(ptr
);
223 if (mem_cur_size
> mem_max_size
)
224 mem_max_size
= mem_cur_size
;
229 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
232 ptr
= tcc_malloc(size
);
233 memset(ptr
, 0, size
);
237 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
241 mem_cur_size
-= malloc_usable_size(ptr
);
243 ptr1
= realloc(ptr
, size
);
245 tcc_error("memory full (realloc)");
247 /* NOTE: count not correct if alloc error, but not critical */
248 mem_cur_size
+= malloc_usable_size(ptr1
);
249 if (mem_cur_size
> mem_max_size
)
250 mem_max_size
= mem_cur_size
;
255 PUB_FUNC
char *tcc_strdup(const char *str
)
258 ptr
= tcc_malloc(strlen(str
) + 1);
263 PUB_FUNC
void tcc_memstats(void)
266 printf("memory: %d bytes, max = %d bytes\n", mem_cur_size
, mem_max_size
);
270 #define free(p) use_tcc_free(p)
271 #define malloc(s) use_tcc_malloc(s)
272 #define realloc(p, s) use_tcc_realloc(p, s)
274 /********************************************************/
277 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
284 /* every power of two we double array size */
285 if ((nb
& (nb
- 1)) == 0) {
290 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
297 ST_FUNC
void dynarray_reset(void *pp
, int *n
)
300 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
303 tcc_free(*(void**)pp
);
307 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
315 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
316 if (c
== '{' && p
[1] && p
[2] == '}') {
319 cstr_cat(&str
, s
->tcc_lib_path
);
324 cstr_ccat(&str
, '\0');
325 dynarray_add(p_ary
, p_nb_ary
, str
.data
);
330 /********************************************************/
332 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
336 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
337 strcpy(sec
->name
, name
);
338 sec
->sh_type
= sh_type
;
339 sec
->sh_flags
= sh_flags
;
347 sec
->sh_addralign
= 4;
350 sec
->sh_addralign
= 1;
353 sec
->sh_addralign
= 32; /* default conservative alignment */
357 if (sh_flags
& SHF_PRIVATE
) {
358 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
360 sec
->sh_num
= s1
->nb_sections
;
361 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
367 static void free_section(Section
*s
)
372 /* realloc section and set its content to zero */
373 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
378 size
= sec
->data_allocated
;
381 while (size
< new_size
)
383 data
= tcc_realloc(sec
->data
, size
);
384 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
386 sec
->data_allocated
= size
;
389 /* reserve at least 'size' bytes in section 'sec' from
391 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
)
393 size_t offset
, offset1
;
395 offset
= sec
->data_offset
;
396 offset1
= offset
+ size
;
397 if (offset1
> sec
->data_allocated
)
398 section_realloc(sec
, offset1
);
399 sec
->data_offset
= offset1
;
400 return sec
->data
+ offset
;
403 /* reserve at least 'size' bytes from section start */
404 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
406 if (size
> sec
->data_allocated
)
407 section_realloc(sec
, size
);
408 if (size
> sec
->data_offset
)
409 sec
->data_offset
= size
;
412 /* return a reference to a section, and create it if it does not
414 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
418 for(i
= 1; i
< s1
->nb_sections
; i
++) {
419 sec
= s1
->sections
[i
];
420 if (!strcmp(name
, sec
->name
))
423 /* sections are created as PROGBITS */
424 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
427 /* update sym->c so that it points to an external symbol in section
428 'section' with value 'value' */
429 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
430 addr_t value
, unsigned long size
,
431 int can_add_underscore
)
433 int sym_type
, sym_bind
, sh_num
, info
, other
;
438 #ifdef CONFIG_TCC_BCHECK
444 else if (section
== SECTION_ABS
)
447 sh_num
= section
->sh_num
;
449 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
451 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
452 sym_type
= STT_NOTYPE
;
454 sym_type
= STT_OBJECT
;
457 if (sym
->type
.t
& VT_STATIC
)
458 sym_bind
= STB_LOCAL
;
460 if (sym
->type
.t
& VT_WEAK
)
463 sym_bind
= STB_GLOBAL
;
467 name
= get_tok_str(sym
->v
, NULL
);
468 #ifdef CONFIG_TCC_BCHECK
469 if (tcc_state
->do_bounds_check
) {
470 /* XXX: avoid doing that for statics ? */
471 /* if bound checking is activated, we change some function
472 names by adding the "__bound" prefix */
475 /* XXX: we rely only on malloc hooks */
488 strcpy(buf
, "__bound_");
498 if (sym
->type
.t
& VT_EXPORT
)
499 other
|= ST_PE_EXPORT
;
500 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
501 Sym
*ref
= sym
->type
.ref
;
502 if (ref
->a
.func_export
)
503 other
|= ST_PE_EXPORT
;
504 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
505 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
507 other
|= ST_PE_STDCALL
;
508 can_add_underscore
= 0;
511 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
512 other
|= ST_PE_IMPORT
;
513 if (sym
->type
.t
& VT_IMPORT
)
514 other
|= ST_PE_IMPORT
;
517 if (! (sym
->type
.t
& VT_STATIC
))
518 other
= (sym
->type
.t
& VT_VIS_MASK
) >> VT_VIS_SHIFT
;
520 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
522 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
525 if (sym
->asm_label
) {
526 name
= sym
->asm_label
;
528 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
529 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
531 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
532 esym
->st_value
= value
;
533 esym
->st_size
= size
;
534 esym
->st_shndx
= sh_num
;
538 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
539 addr_t value
, unsigned long size
)
541 put_extern_sym2(sym
, section
, value
, size
, 1);
544 /* add a new relocation entry to symbol 'sym' in section 's' */
545 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
,
551 put_extern_sym(sym
, NULL
, 0, 0);
554 /* now we can add ELF relocation info */
555 put_elf_reloca(symtab_section
, s
, offset
, type
, c
, addend
);
558 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
560 greloca(s
, sym
, offset
, type
, 0);
563 /********************************************************/
565 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
569 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
572 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
576 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
580 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
583 BufferedFile
**pf
, *f
;
586 /* use upper file if inline ":asm:" or token ":paste:" */
587 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
590 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
591 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
592 (*pf
)->filename
, (*pf
)->line_num
);
593 if (f
->line_num
> 0) {
594 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
595 f
->filename
, f
->line_num
);
597 strcat_printf(buf
, sizeof(buf
), "%s: ",
601 strcat_printf(buf
, sizeof(buf
), "tcc: ");
604 strcat_printf(buf
, sizeof(buf
), "warning: ");
606 strcat_printf(buf
, sizeof(buf
), "error: ");
607 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
609 if (!s1
->error_func
) {
610 /* default case: stderr */
611 if (s1
->ppfp
) /* print a newline during tcc -E */
612 fprintf(s1
->ppfp
, "\n"), fflush(s1
->ppfp
);
613 fprintf(stderr
, "%s\n", buf
);
614 fflush(stderr
); /* print error/warning now (win32) */
616 s1
->error_func(s1
->error_opaque
, buf
);
618 if (!is_warning
|| s1
->warn_error
)
622 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
623 void (*error_func
)(void *opaque
, const char *msg
))
625 s
->error_opaque
= error_opaque
;
626 s
->error_func
= error_func
;
629 /* error without aborting current compilation */
630 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
632 TCCState
*s1
= tcc_state
;
636 error1(s1
, 0, fmt
, ap
);
640 PUB_FUNC
void tcc_error(const char *fmt
, ...)
642 TCCState
*s1
= tcc_state
;
646 error1(s1
, 0, fmt
, ap
);
648 /* better than nothing: in some cases, we accept to handle errors */
649 if (s1
->error_set_jmp_enabled
) {
650 longjmp(s1
->error_jmp_buf
, 1);
652 /* XXX: eliminate this someday */
657 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
659 TCCState
*s1
= tcc_state
;
666 error1(s1
, 1, fmt
, ap
);
670 /********************************************************/
673 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
676 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
678 bf
= tcc_mallocz(sizeof(BufferedFile
) + buflen
);
679 bf
->buf_ptr
= bf
->buffer
;
680 bf
->buf_end
= bf
->buffer
+ initlen
;
681 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
682 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
684 normalize_slashes(bf
->filename
);
687 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
693 ST_FUNC
void tcc_close(void)
695 BufferedFile
*bf
= file
;
698 total_lines
+= bf
->line_num
;
704 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
707 if (strcmp(filename
, "-") == 0)
708 fd
= 0, filename
= "<stdin>";
710 fd
= open(filename
, O_RDONLY
| O_BINARY
);
711 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
712 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
713 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
717 tcc_open_bf(s1
, filename
, 0);
722 /* compile the C file opened in 'file'. Return non zero if errors. */
723 static int tcc_compile(TCCState
*s1
)
727 volatile int section_sym
;
730 printf("%s: **** new file\n", file
->filename
);
734 cur_text_section
= NULL
;
736 anon_sym
= SYM_FIRST_ANOM
;
738 /* file info: full path + filename */
739 section_sym
= 0; /* avoid warning */
741 section_sym
= put_elf_sym(symtab_section
, 0, 0,
742 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
743 text_section
->sh_num
, NULL
);
744 getcwd(buf
, sizeof(buf
));
746 normalize_slashes(buf
);
748 pstrcat(buf
, sizeof(buf
), "/");
749 put_stabs_r(buf
, N_SO
, 0, 0,
750 text_section
->data_offset
, text_section
, section_sym
);
751 put_stabs_r(file
->filename
, N_SO
, 0, 0,
752 text_section
->data_offset
, text_section
, section_sym
);
754 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
755 symbols can be safely used */
756 put_elf_sym(symtab_section
, 0, 0,
757 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
758 SHN_ABS
, file
->filename
);
760 /* define some often used types */
763 char_pointer_type
.t
= VT_BYTE
;
764 mk_pointer(&char_pointer_type
);
767 size_type
.t
= VT_INT
;
769 size_type
.t
= VT_LLONG
;
772 func_old_type
.t
= VT_FUNC
;
773 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
774 #ifdef TCC_TARGET_ARM
779 /* define 'void *alloca(unsigned int)' builtin function */
784 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
785 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
788 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
792 define_start
= define_stack
;
795 if (setjmp(s1
->error_jmp_buf
) == 0) {
797 s1
->error_set_jmp_enabled
= 1;
799 ch
= file
->buf_ptr
[0];
800 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
801 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
| PARSE_FLAG_TOK_STR
;
805 expect("declaration");
808 /* end of translation unit info */
810 put_stabs_r(NULL
, N_SO
, 0, 0,
811 text_section
->data_offset
, text_section
, section_sym
);
815 s1
->error_set_jmp_enabled
= 0;
817 /* reset define stack, but leave -Dsymbols (may be incorrect if
818 they are undefined) */
819 free_defines(define_start
);
821 gen_inline_functions();
823 sym_pop(&global_stack
, NULL
);
824 sym_pop(&local_stack
, NULL
);
826 return s1
->nb_errors
!= 0 ? -1 : 0;
829 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
834 tcc_open_bf(s
, "<string>", len
);
835 memcpy(file
->buffer
, str
, len
);
836 ret
= tcc_compile(s
);
841 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
842 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
849 len2
= strlen(value
);
851 /* init file structure */
852 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
853 memcpy(file
->buffer
, sym
, len1
);
854 file
->buffer
[len1
] = ' ';
855 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
857 /* parse with define parser */
858 ch
= file
->buf_ptr
[0];
865 /* undefine a preprocessor symbol */
866 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
870 ts
= tok_alloc(sym
, strlen(sym
));
871 s
= define_find(ts
->tok
);
872 /* undefine symbol by putting an invalid name */
877 /* cleanup all static data used during compilation */
878 static void tcc_cleanup(void)
880 if (NULL
== tcc_state
)
887 dynarray_reset(&sym_pools
, &nb_sym_pools
);
890 /* reset symbol stack */
891 sym_free_first
= NULL
;
894 LIBTCCAPI TCCState
*tcc_new(void)
902 s
= tcc_mallocz(sizeof(TCCState
));
907 tcc_set_lib_path_w32(s
);
909 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
913 s
->include_stack_ptr
= s
->include_stack
;
915 /* we add dummy defines for some special macros to speed up tests
916 and to have working defined() */
917 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
918 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
919 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
920 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
922 /* define __TINYC__ 92X */
923 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
924 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
925 tcc_define_symbol(s
, "__TINYC__", buffer
);
927 /* standard defines */
928 tcc_define_symbol(s
, "__STDC__", NULL
);
929 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
930 tcc_define_symbol(s
, "__STDC_HOSTED__", NULL
);
933 #if defined(TCC_TARGET_I386)
934 tcc_define_symbol(s
, "__i386__", NULL
);
935 tcc_define_symbol(s
, "__i386", NULL
);
936 tcc_define_symbol(s
, "i386", NULL
);
937 #elif defined(TCC_TARGET_X86_64)
938 tcc_define_symbol(s
, "__x86_64__", NULL
);
939 #elif defined(TCC_TARGET_ARM)
940 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
941 tcc_define_symbol(s
, "__arm_elf__", NULL
);
942 tcc_define_symbol(s
, "__arm_elf", NULL
);
943 tcc_define_symbol(s
, "arm_elf", NULL
);
944 tcc_define_symbol(s
, "__arm__", NULL
);
945 tcc_define_symbol(s
, "__arm", NULL
);
946 tcc_define_symbol(s
, "arm", NULL
);
947 tcc_define_symbol(s
, "__APCS_32__", NULL
);
948 tcc_define_symbol(s
, "__ARMEL__", NULL
);
949 #if defined(TCC_ARM_EABI)
950 tcc_define_symbol(s
, "__ARM_EABI__", NULL
);
952 #if defined(TCC_ARM_HARDFLOAT)
953 s
->float_abi
= ARM_HARD_FLOAT
;
954 tcc_define_symbol(s
, "__ARM_PCS_VFP", NULL
);
956 s
->float_abi
= ARM_SOFTFP_FLOAT
;
958 #elif defined(TCC_TARGET_ARM64)
959 tcc_define_symbol(s
, "__aarch64__", NULL
);
963 tcc_define_symbol(s
, "_WIN32", NULL
);
964 # ifdef TCC_TARGET_X86_64
965 tcc_define_symbol(s
, "_WIN64", NULL
);
968 tcc_define_symbol(s
, "__unix__", NULL
);
969 tcc_define_symbol(s
, "__unix", NULL
);
970 tcc_define_symbol(s
, "unix", NULL
);
971 # if defined(__linux)
972 tcc_define_symbol(s
, "__linux__", NULL
);
973 tcc_define_symbol(s
, "__linux", NULL
);
975 # if defined(__FreeBSD__)
977 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
980 # if defined(__FreeBSD_kernel__)
981 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
985 /* TinyCC & gcc defines */
986 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
987 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
988 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
990 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
991 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
995 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
996 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
998 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
999 /* wint_t is unsigned int by default, but (signed) int on BSDs
1000 and unsigned short on windows. Other OSes might have still
1001 other conventions, sigh. */
1002 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__)
1003 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1005 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1009 #ifndef TCC_TARGET_PE
1011 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1012 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1013 /* paths for crt objects */
1014 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1017 /* no section zero */
1018 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1020 /* create standard sections */
1021 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1022 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1023 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1025 /* symbols are always generated for linking stage */
1026 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1028 ".hashtab", SHF_PRIVATE
);
1029 strtab_section
= symtab_section
->link
;
1030 s
->symtab
= symtab_section
;
1032 /* private symbol table for dynamic symbols */
1033 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1035 ".dynhashtab", SHF_PRIVATE
);
1036 s
->alacarte_link
= 1;
1038 s
->warn_implicit_function_declaration
= 1;
1040 #ifdef CHAR_IS_UNSIGNED
1041 s
->char_is_unsigned
= 1;
1043 /* enable this if you want symbols with leading underscore on windows: */
1044 #if 0 /* def TCC_TARGET_PE */
1045 s
->leading_underscore
= 1;
1047 #ifdef TCC_TARGET_I386
1050 #ifdef TCC_IS_NATIVE
1051 s
->runtime_main
= "main";
1056 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1062 /* free all sections */
1063 for(i
= 1; i
< s1
->nb_sections
; i
++)
1064 free_section(s1
->sections
[i
]);
1065 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1067 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1068 free_section(s1
->priv_sections
[i
]);
1069 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1071 /* free any loaded DLLs */
1072 #ifdef TCC_IS_NATIVE
1073 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1074 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1076 dlclose(ref
->handle
);
1080 /* free loaded dlls array */
1081 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1083 /* free library paths */
1084 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1085 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1087 /* free include paths */
1088 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1089 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1090 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1092 tcc_free(s1
->tcc_lib_path
);
1093 tcc_free(s1
->soname
);
1094 tcc_free(s1
->rpath
);
1095 tcc_free(s1
->init_symbol
);
1096 tcc_free(s1
->fini_symbol
);
1097 tcc_free(s1
->outfile
);
1098 tcc_free(s1
->deps_outfile
);
1099 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1100 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1101 dynarray_reset(&s1
->pragma_libs
, &s1
->nb_pragma_libs
);
1103 #ifdef TCC_IS_NATIVE
1104 # ifdef HAVE_SELINUX
1105 munmap (s1
->write_mem
, s1
->mem_size
);
1106 munmap (s1
->runtime_mem
, s1
->mem_size
);
1108 tcc_free(s1
->runtime_mem
);
1112 tcc_free(s1
->sym_attrs
);
1116 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1118 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1122 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1124 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1128 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
, int filetype
)
1134 #ifdef CONFIG_TCC_ASM
1135 /* if .S file, define __ASSEMBLER__ like gcc does */
1136 if ((filetype
== TCC_FILETYPE_ASM
) || (filetype
== TCC_FILETYPE_ASM_PP
)) {
1137 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1138 parse_flags
= PARSE_FLAG_ASM_FILE
;
1143 ret
= tcc_open(s1
, filename
);
1145 if (flags
& AFF_PRINT_ERROR
)
1146 tcc_error_noabort("file '%s' not found", filename
);
1150 /* update target deps */
1151 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1152 tcc_strdup(filename
));
1154 if (flags
& AFF_PREPROCESS
) {
1155 ret
= tcc_preprocess(s1
);
1159 if (filetype
== TCC_FILETYPE_C
) {
1160 /* C file assumed */
1161 ret
= tcc_compile(s1
);
1165 #ifdef CONFIG_TCC_ASM
1166 if (filetype
== TCC_FILETYPE_ASM_PP
) {
1167 /* non preprocessed assembler */
1168 ret
= tcc_assemble(s1
, 1);
1172 if (filetype
== TCC_FILETYPE_ASM
) {
1173 /* preprocessed assembler */
1174 ret
= tcc_assemble(s1
, 0);
1180 /* assume executable format: auto guess file type */
1181 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1182 lseek(fd
, 0, SEEK_SET
);
1184 tcc_error_noabort("could not read header");
1188 if (size
== sizeof(ehdr
) &&
1189 ehdr
.e_ident
[0] == ELFMAG0
&&
1190 ehdr
.e_ident
[1] == ELFMAG1
&&
1191 ehdr
.e_ident
[2] == ELFMAG2
&&
1192 ehdr
.e_ident
[3] == ELFMAG3
) {
1194 /* do not display line number if error */
1196 if (ehdr
.e_type
== ET_REL
) {
1197 ret
= tcc_load_object_file(s1
, fd
, 0);
1201 #ifndef TCC_TARGET_PE
1202 if (ehdr
.e_type
== ET_DYN
) {
1203 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1204 #ifdef TCC_IS_NATIVE
1206 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1211 ret
= tcc_load_dll(s1
, fd
, filename
,
1212 (flags
& AFF_REFERENCED_DLL
) != 0);
1217 tcc_error_noabort("unrecognized ELF file");
1221 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1222 file
->line_num
= 0; /* do not display line number if error */
1223 ret
= tcc_load_archive(s1
, fd
);
1227 #ifdef TCC_TARGET_COFF
1228 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1229 ret
= tcc_load_coff(s1
, fd
);
1234 #ifdef TCC_TARGET_PE
1235 ret
= pe_load_file(s1
, filename
, fd
);
1237 /* as GNU ld, consider it is an ld script if not recognized */
1238 ret
= tcc_load_ldscript(s1
);
1241 tcc_error_noabort("unrecognized file type");
1248 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
, int filetype
)
1250 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1251 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
, filetype
);
1253 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
, filetype
);
1256 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1258 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1262 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1263 const char *filename
, int flags
, char **paths
, int nb_paths
)
1268 for(i
= 0; i
< nb_paths
; i
++) {
1269 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1270 if (tcc_add_file_internal(s
, buf
, flags
, TCC_FILETYPE_BINARY
) == 0)
1276 /* find and load a dll. Return non zero if not found */
1277 /* XXX: add '-rpath' option support ? */
1278 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1280 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1281 s
->library_paths
, s
->nb_library_paths
);
1284 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1286 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1287 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1288 tcc_error_noabort("file '%s' not found", filename
);
1292 /* the library name is the same as the argument of the '-l' option */
1293 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1295 #ifdef TCC_TARGET_PE
1296 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1297 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1299 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1300 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1303 if (0 == tcc_add_library_internal(s
, *pp
,
1304 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1311 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *libname
)
1313 int ret
= tcc_add_library(s
, libname
);
1315 tcc_error_noabort("cannot find library 'lib%s'", libname
);
1319 /* habdle #pragma comment(lib,) */
1320 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
)
1323 for (i
= 0; i
< s1
->nb_pragma_libs
; i
++)
1324 tcc_add_library_err(s1
, s1
->pragma_libs
[i
]);
1327 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1329 #ifdef TCC_TARGET_PE
1330 /* On x86_64 'val' might not be reachable with a 32bit offset.
1331 So it is handled here as if it were in a DLL. */
1332 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1334 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1335 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1341 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1343 s
->output_type
= output_type
;
1346 /* default include paths */
1347 /* -isystem paths have already been handled */
1348 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1351 /* if bound checking, then add corresponding sections */
1352 #ifdef CONFIG_TCC_BCHECK
1353 if (s
->do_bounds_check
) {
1355 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1356 /* create bounds sections */
1357 bounds_section
= new_section(s
, ".bounds",
1358 SHT_PROGBITS
, SHF_ALLOC
);
1359 lbounds_section
= new_section(s
, ".lbounds",
1360 SHT_PROGBITS
, SHF_ALLOC
);
1364 if (s
->char_is_unsigned
) {
1365 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1368 /* add debug sections */
1371 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1372 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1373 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1374 put_elf_str(stabstr_section
, "");
1375 stab_section
->link
= stabstr_section
;
1376 /* put first entry */
1377 put_stabs("", 0, 0, 0, 0);
1380 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1381 #ifdef TCC_TARGET_PE
1383 tcc_add_systemdir(s
);
1386 /* add libc crt1/crti objects */
1387 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1389 if (output_type
!= TCC_OUTPUT_DLL
)
1390 tcc_add_crt(s
, "crt1.o");
1391 tcc_add_crt(s
, "crti.o");
1395 #ifdef CONFIG_TCC_BCHECK
1396 if (s
->do_bounds_check
&& (output_type
== TCC_OUTPUT_EXE
))
1398 /* force a bcheck.o linking */
1399 addr_t func
= TOK___bound_init
;
1400 Sym
*sym
= external_global_sym(func
, &func_old_type
, 0);
1402 put_extern_sym(sym
, NULL
, 0, 0);
1408 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1410 tcc_free(s
->tcc_lib_path
);
1411 s
->tcc_lib_path
= tcc_strdup(path
);
1414 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1415 #define FD_INVERT 0x0002 /* invert value before storing */
1417 typedef struct FlagDef
{
1423 static const FlagDef warning_defs
[] = {
1424 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1425 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1426 { offsetof(TCCState
, warn_error
), 0, "error" },
1427 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1428 "implicit-function-declaration" },
1431 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1432 const char *name
, int value
)
1439 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1443 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1444 if (!strcmp(r
, p
->name
))
1449 if (p
->flags
& FD_INVERT
)
1451 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1455 /* set/reset a warning */
1456 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1461 if (!strcmp(warning_name
, "all")) {
1462 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1463 if (p
->flags
& WD_ALL
)
1464 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1468 return set_flag(s
, warning_defs
, countof(warning_defs
),
1469 warning_name
, value
);
1473 static const FlagDef flag_defs
[] = {
1474 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1475 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1476 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1477 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1478 { offsetof(TCCState
, ms_extensions
), 0, "ms-extensions" },
1479 { offsetof(TCCState
, old_struct_init_code
), 0, "old-struct-init-code" },
1480 { offsetof(TCCState
, dollars_in_identifiers
), 0, "dollars-in-identifiers" },
1483 /* set/reset a flag */
1484 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1486 return set_flag(s
, flag_defs
, countof(flag_defs
),
1491 static int strstart(const char *val
, const char **str
)
1506 /* Like strstart, but automatically takes into account that ld options can
1508 * - start with double or single dash (e.g. '--soname' or '-soname')
1509 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1510 * or '-Wl,-soname=x.so')
1512 * you provide `val` always in 'option[=]' form (no leading -)
1514 static int link_option(const char *str
, const char *val
, const char **ptr
)
1518 /* there should be 1 or 2 dashes */
1524 /* then str & val should match (potentialy up to '=') */
1528 while (*q
!= '\0' && *q
!= '=') {
1535 /* '=' near eos means ',' or '=' is ok */
1537 if (*p
!= ',' && *p
!= '=')
1548 static const char *skip_linker_arg(const char **str
)
1550 const char *s1
= *str
;
1551 const char *s2
= strchr(s1
, ',');
1552 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1556 static char *copy_linker_arg(const char *p
)
1559 skip_linker_arg(&q
);
1560 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1563 /* set linker options */
1564 static int tcc_set_linker(TCCState
*s
, const char *option
)
1566 while (option
&& *option
) {
1568 const char *p
= option
;
1572 if (link_option(option
, "Bsymbolic", &p
)) {
1574 } else if (link_option(option
, "nostdlib", &p
)) {
1576 } else if (link_option(option
, "fini=", &p
)) {
1577 s
->fini_symbol
= copy_linker_arg(p
);
1579 } else if (link_option(option
, "image-base=", &p
)
1580 || link_option(option
, "Ttext=", &p
)) {
1581 s
->text_addr
= strtoull(p
, &end
, 16);
1582 s
->has_text_addr
= 1;
1583 } else if (link_option(option
, "init=", &p
)) {
1584 s
->init_symbol
= copy_linker_arg(p
);
1586 } else if (link_option(option
, "oformat=", &p
)) {
1587 #if defined(TCC_TARGET_PE)
1588 if (strstart("pe-", &p
)) {
1589 #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
1590 if (strstart("elf64-", &p
)) {
1592 if (strstart("elf32-", &p
)) {
1594 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1595 } else if (!strcmp(p
, "binary")) {
1596 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1597 #ifdef TCC_TARGET_COFF
1598 } else if (!strcmp(p
, "coff")) {
1599 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1604 } else if (link_option(option
, "as-needed", &p
)) {
1606 } else if (link_option(option
, "O", &p
)) {
1608 } else if (link_option(option
, "rpath=", &p
)) {
1609 s
->rpath
= copy_linker_arg(p
);
1610 } else if (link_option(option
, "section-alignment=", &p
)) {
1611 s
->section_align
= strtoul(p
, &end
, 16);
1612 } else if (link_option(option
, "soname=", &p
)) {
1613 s
->soname
= copy_linker_arg(p
);
1614 #ifdef TCC_TARGET_PE
1615 } else if (link_option(option
, "file-alignment=", &p
)) {
1616 s
->pe_file_align
= strtoul(p
, &end
, 16);
1617 } else if (link_option(option
, "stack=", &p
)) {
1618 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1619 } else if (link_option(option
, "subsystem=", &p
)) {
1620 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1621 if (!strcmp(p
, "native")) {
1622 s
->pe_subsystem
= 1;
1623 } else if (!strcmp(p
, "console")) {
1624 s
->pe_subsystem
= 3;
1625 } else if (!strcmp(p
, "gui")) {
1626 s
->pe_subsystem
= 2;
1627 } else if (!strcmp(p
, "posix")) {
1628 s
->pe_subsystem
= 7;
1629 } else if (!strcmp(p
, "efiapp")) {
1630 s
->pe_subsystem
= 10;
1631 } else if (!strcmp(p
, "efiboot")) {
1632 s
->pe_subsystem
= 11;
1633 } else if (!strcmp(p
, "efiruntime")) {
1634 s
->pe_subsystem
= 12;
1635 } else if (!strcmp(p
, "efirom")) {
1636 s
->pe_subsystem
= 13;
1637 #elif defined(TCC_TARGET_ARM)
1638 if (!strcmp(p
, "wince")) {
1639 s
->pe_subsystem
= 9;
1647 if (ignoring
&& s
->warn_unsupported
) err
: {
1649 pstrcpy(buf
, sizeof buf
, e
= copy_linker_arg(option
)), tcc_free(e
);
1651 tcc_warning("unsupported linker option '%s'", buf
);
1653 tcc_error("unsupported linker option '%s'", buf
);
1655 option
= skip_linker_arg(&p
);
1660 typedef struct TCCOption
{
1680 TCC_OPTION_dumpversion
,
1681 TCC_OPTION_float_abi
,
1689 TCC_OPTION_traditional
,
1696 TCC_OPTION_iwithprefix
,
1697 TCC_OPTION_nostdinc
,
1698 TCC_OPTION_nostdlib
,
1699 TCC_OPTION_print_search_dirs
,
1700 TCC_OPTION_rdynamic
,
1701 TCC_OPTION_pedantic
,
1713 #define TCC_OPTION_HAS_ARG 0x0001
1714 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1716 static const TCCOption tcc_options
[] = {
1717 { "h", TCC_OPTION_HELP
, 0 },
1718 { "-help", TCC_OPTION_HELP
, 0 },
1719 { "?", TCC_OPTION_HELP
, 0 },
1720 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1721 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1722 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1723 { "P", TCC_OPTION_P
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1724 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
1725 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
1726 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1727 { "bench", TCC_OPTION_bench
, 0 },
1728 #ifdef CONFIG_TCC_BACKTRACE
1729 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
1731 #ifdef CONFIG_TCC_BCHECK
1732 { "b", TCC_OPTION_b
, 0 },
1734 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1735 { "c", TCC_OPTION_c
, 0 },
1736 { "dumpversion", TCC_OPTION_dumpversion
, 0},
1737 #ifdef TCC_TARGET_ARM
1738 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
1740 { "static", TCC_OPTION_static
, 0 },
1741 { "std", TCC_OPTION_std
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1742 { "shared", TCC_OPTION_shared
, 0 },
1743 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
1744 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
1745 { "pedantic", TCC_OPTION_pedantic
, 0},
1746 { "pthread", TCC_OPTION_pthread
, 0},
1747 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1748 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
1749 { "r", TCC_OPTION_r
, 0 },
1750 { "s", TCC_OPTION_s
, 0 },
1751 { "traditional", TCC_OPTION_traditional
, 0 },
1752 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1753 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1754 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1755 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
1756 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1757 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
1758 { "iwithprefix", TCC_OPTION_iwithprefix
, TCC_OPTION_HAS_ARG
},
1759 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
1760 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
1761 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
1762 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1763 { "w", TCC_OPTION_w
, 0 },
1764 { "pipe", TCC_OPTION_pipe
, 0},
1765 { "E", TCC_OPTION_E
, 0},
1766 { "MD", TCC_OPTION_MD
, 0},
1767 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
1768 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
1772 static void parse_option_D(TCCState
*s1
, const char *optarg
)
1774 char *sym
= tcc_strdup(optarg
);
1775 char *value
= strchr(sym
, '=');
1778 tcc_define_symbol(s1
, sym
, value
);
1782 static void args_parser_add_file(TCCState
*s
, const char* filename
, int filetype
)
1784 int len
= strlen(filename
);
1785 char *p
= tcc_malloc(len
+ 2);
1790 /* use a file extension to detect a filetype */
1791 const char *ext
= tcc_fileextension(filename
);
1794 if (!strcmp(ext
, "S"))
1795 *p
= TCC_FILETYPE_ASM_PP
;
1797 if (!strcmp(ext
, "s"))
1798 *p
= TCC_FILETYPE_ASM
;
1800 if (!PATHCMP(ext
, "c") || !PATHCMP(ext
, "i"))
1801 *p
= TCC_FILETYPE_C
;
1803 *p
= TCC_FILETYPE_BINARY
;
1806 *p
= TCC_FILETYPE_C
;
1809 strcpy(p
+1, filename
);
1810 dynarray_add((void ***)&s
->files
, &s
->nb_files
, p
);
1813 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
1815 const TCCOption
*popt
;
1816 const char *optarg
, *r
;
1822 /* collect -Wl options for input such as "-Wl,-rpath -Wl,<path>" */
1824 cstr_new(&linker_arg
);
1826 while (optind
< argc
) {
1829 if (r
[0] != '-' || r
[1] == '\0') {
1830 args_parser_add_file(s
, r
, filetype
);
1833 /* argv[0] will be this file */
1839 /* find option in table */
1840 for(popt
= tcc_options
; ; ++popt
) {
1841 const char *p1
= popt
->name
;
1842 const char *r1
= r
+ 1;
1844 tcc_error("invalid option -- '%s'", r
);
1845 if (!strstart(p1
, &r1
))
1848 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
1849 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
1851 tcc_error("argument to '%s' is missing", r
);
1852 optarg
= argv
[optind
++];
1854 } else if (*r1
!= '\0')
1859 switch(popt
->index
) {
1860 case TCC_OPTION_HELP
:
1863 tcc_add_include_path(s
, optarg
);
1866 parse_option_D(s
, optarg
);
1869 tcc_undefine_symbol(s
, optarg
);
1872 tcc_add_library_path(s
, optarg
);
1875 /* set tcc utilities path (mainly for tcc development) */
1876 tcc_set_lib_path(s
, optarg
);
1879 args_parser_add_file(s
, r
, TCC_FILETYPE_BINARY
);
1882 case TCC_OPTION_pthread
:
1883 parse_option_D(s
, "_REENTRANT");
1886 case TCC_OPTION_bench
:
1889 #ifdef CONFIG_TCC_BACKTRACE
1891 tcc_set_num_callers(atoi(optarg
));
1894 #ifdef CONFIG_TCC_BCHECK
1896 s
->do_bounds_check
= 1;
1905 tcc_warning("-c: some compiler action already specified (%d)", s
->output_type
);
1906 s
->output_type
= TCC_OUTPUT_OBJ
;
1908 #ifdef TCC_TARGET_ARM
1909 case TCC_OPTION_float_abi
:
1910 /* tcc doesn't support soft float yet */
1911 if (!strcmp(optarg
, "softfp")) {
1912 s
->float_abi
= ARM_SOFTFP_FLOAT
;
1913 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
1914 } else if (!strcmp(optarg
, "hard"))
1915 s
->float_abi
= ARM_HARD_FLOAT
;
1917 tcc_error("unsupported float abi '%s'", optarg
);
1920 case TCC_OPTION_static
:
1923 case TCC_OPTION_std
:
1924 /* silently ignore, a current purpose:
1925 allow to use a tcc as a reference compiler for "make test" */
1927 case TCC_OPTION_shared
:
1929 tcc_warning("-shared: some compiler action already specified (%d)", s
->output_type
);
1930 s
->output_type
= TCC_OUTPUT_DLL
;
1932 case TCC_OPTION_soname
:
1933 s
->soname
= tcc_strdup(optarg
);
1936 s
->option_m
= tcc_strdup(optarg
);
1939 s
->outfile
= tcc_strdup(optarg
);
1942 /* generate a .o merging several output files */
1944 tcc_warning("-r: some compiler action already specified (%d)", s
->output_type
);
1946 s
->output_type
= TCC_OUTPUT_OBJ
;
1948 case TCC_OPTION_isystem
:
1949 tcc_add_sysinclude_path(s
, optarg
);
1951 case TCC_OPTION_iwithprefix
:
1954 int buf_size
= sizeof(buf
)-1;
1957 char *sysroot
= "{B}/";
1958 int len
= strlen(sysroot
);
1961 strncpy(p
, sysroot
, len
);
1965 len
= strlen(optarg
);
1968 strncpy(p
, optarg
, len
+1);
1969 tcc_add_sysinclude_path(s
, buf
);
1972 case TCC_OPTION_nostdinc
:
1975 case TCC_OPTION_nostdlib
:
1978 case TCC_OPTION_print_search_dirs
:
1979 s
->print_search_dirs
= 1;
1981 case TCC_OPTION_run
:
1983 tcc_warning("-run: some compiler action already specified (%d)", s
->output_type
);
1984 s
->output_type
= TCC_OUTPUT_MEMORY
;
1985 tcc_set_options(s
, optarg
);
1989 do ++s
->verbose
; while (*optarg
++ == 'v');
1992 if (tcc_set_flag(s
, optarg
, 1) < 0 && s
->warn_unsupported
)
1993 goto unsupported_option
;
1996 if (tcc_set_warning(s
, optarg
, 1) < 0 &&
1997 s
->warn_unsupported
)
1998 goto unsupported_option
;
2003 case TCC_OPTION_rdynamic
:
2007 if (linker_arg
.size
)
2008 --linker_arg
.size
, cstr_ccat(&linker_arg
, ',');
2009 cstr_cat(&linker_arg
, optarg
);
2010 cstr_ccat(&linker_arg
, '\0');
2014 tcc_warning("-E: some compiler action already specified (%d)", s
->output_type
);
2015 s
->output_type
= TCC_OUTPUT_PREPROCESS
;
2018 s
->Pflag
= atoi(optarg
) + 1;
2024 s
->deps_outfile
= tcc_strdup(optarg
);
2026 case TCC_OPTION_dumpversion
:
2027 printf ("%s\n", TCC_VERSION
);
2032 case TCC_OPTION_traditional
:
2036 filetype
= TCC_FILETYPE_C
;
2039 filetype
= TCC_FILETYPE_ASM_PP
;
2044 tcc_warning("unsupported language '%s'", optarg
);
2047 case TCC_OPTION_pedantic
:
2048 case TCC_OPTION_pipe
:
2052 if (s
->warn_unsupported
) {
2054 tcc_warning("unsupported option '%s'", r
);
2060 if (s
->output_type
== 0)
2061 s
->output_type
= TCC_OUTPUT_EXE
;
2063 if (pthread
&& s
->output_type
!= TCC_OUTPUT_OBJ
)
2064 tcc_set_options(s
, "-lpthread");
2066 if (s
->output_type
== TCC_OUTPUT_EXE
)
2067 tcc_set_linker(s
, (const char *)linker_arg
.data
);
2068 cstr_free(&linker_arg
);
2073 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *str
)
2080 argc
= 0, argv
= NULL
;
2082 while (is_space(*str
))
2087 while (*str
!= '\0' && !is_space(*str
))
2090 arg
= tcc_malloc(len
+ 1);
2091 pstrncpy(arg
, s1
, len
);
2092 dynarray_add((void ***)&argv
, &argc
, arg
);
2094 ret
= tcc_parse_args(s
, argc
, argv
);
2095 dynarray_reset(&argv
, &argc
);
2099 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
2102 tt
= (double)total_time
/ 1000000.0;
2105 if (total_bytes
< 1)
2107 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
2108 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
2109 tt
, (int)(total_lines
/ tt
),
2110 total_bytes
/ tt
/ 1000000.0);
2113 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
2117 path
= getenv("C_INCLUDE_PATH");
2119 tcc_add_include_path(s
, path
);
2121 path
= getenv("CPATH");
2123 tcc_add_include_path(s
, path
);
2125 path
= getenv("LIBRARY_PATH");
2127 tcc_add_library_path(s
, path
);