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
;
440 else if (section
== SECTION_ABS
)
443 sh_num
= section
->sh_num
;
445 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
447 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
448 sym_type
= STT_NOTYPE
;
450 sym_type
= STT_OBJECT
;
453 if (sym
->type
.t
& VT_STATIC
)
454 sym_bind
= STB_LOCAL
;
456 if (sym
->type
.t
& VT_WEAK
)
459 sym_bind
= STB_GLOBAL
;
463 name
= get_tok_str(sym
->v
, NULL
);
464 #ifdef CONFIG_TCC_BCHECK
465 if (tcc_state
->do_bounds_check
) {
467 /* XXX: avoid doing that for statics ? */
468 /* if bound checking is activated, we change some function
469 names by adding the "__bound" prefix */
472 /* XXX: we rely only on malloc hooks */
485 strcpy(buf
, "__bound_");
495 if (sym
->type
.t
& VT_EXPORT
)
496 other
|= ST_PE_EXPORT
;
497 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
498 Sym
*ref
= sym
->type
.ref
;
499 if (ref
->a
.func_export
)
500 other
|= ST_PE_EXPORT
;
501 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
502 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
504 other
|= ST_PE_STDCALL
;
505 can_add_underscore
= 0;
508 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
509 other
|= ST_PE_IMPORT
;
510 if (sym
->type
.t
& VT_IMPORT
)
511 other
|= ST_PE_IMPORT
;
514 if (! (sym
->type
.t
& VT_STATIC
))
515 other
= (sym
->type
.t
& VT_VIS_MASK
) >> VT_VIS_SHIFT
;
517 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
519 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
522 if (sym
->asm_label
) {
523 name
= sym
->asm_label
;
525 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
526 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
528 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
529 esym
->st_value
= value
;
530 esym
->st_size
= size
;
531 esym
->st_shndx
= sh_num
;
535 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
536 addr_t value
, unsigned long size
)
538 put_extern_sym2(sym
, section
, value
, size
, 1);
541 /* add a new relocation entry to symbol 'sym' in section 's' */
542 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
,
548 put_extern_sym(sym
, NULL
, 0, 0);
551 /* now we can add ELF relocation info */
552 put_elf_reloca(symtab_section
, s
, offset
, type
, c
, addend
);
555 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
557 greloca(s
, sym
, offset
, type
, 0);
560 /********************************************************/
562 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
566 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
569 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
573 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
577 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
580 BufferedFile
**pf
, *f
;
583 /* use upper file if inline ":asm:" or token ":paste:" */
584 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
587 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
588 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
589 (*pf
)->filename
, (*pf
)->line_num
);
590 if (f
->line_num
> 0) {
591 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
592 f
->filename
, f
->line_num
);
594 strcat_printf(buf
, sizeof(buf
), "%s: ",
598 strcat_printf(buf
, sizeof(buf
), "tcc: ");
601 strcat_printf(buf
, sizeof(buf
), "warning: ");
603 strcat_printf(buf
, sizeof(buf
), "error: ");
604 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
606 if (!s1
->error_func
) {
607 /* default case: stderr */
608 fprintf(stderr
, "%s\n", buf
);
610 s1
->error_func(s1
->error_opaque
, buf
);
612 if (!is_warning
|| s1
->warn_error
)
616 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
617 void (*error_func
)(void *opaque
, const char *msg
))
619 s
->error_opaque
= error_opaque
;
620 s
->error_func
= error_func
;
623 /* error without aborting current compilation */
624 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
626 TCCState
*s1
= tcc_state
;
630 error1(s1
, 0, fmt
, ap
);
634 PUB_FUNC
void tcc_error(const char *fmt
, ...)
636 TCCState
*s1
= tcc_state
;
640 error1(s1
, 0, fmt
, ap
);
642 /* better than nothing: in some cases, we accept to handle errors */
643 if (s1
->error_set_jmp_enabled
) {
644 longjmp(s1
->error_jmp_buf
, 1);
646 /* XXX: eliminate this someday */
651 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
653 TCCState
*s1
= tcc_state
;
660 error1(s1
, 1, fmt
, ap
);
664 /********************************************************/
667 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
670 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
672 bf
= tcc_malloc(sizeof(BufferedFile
) + buflen
);
673 bf
->buf_ptr
= bf
->buffer
;
674 bf
->buf_end
= bf
->buffer
+ initlen
;
675 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
676 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
678 normalize_slashes(bf
->filename
);
681 bf
->ifndef_macro
= 0;
682 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
688 ST_FUNC
void tcc_close(void)
690 BufferedFile
*bf
= file
;
693 total_lines
+= bf
->line_num
;
699 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
702 if (strcmp(filename
, "-") == 0)
703 fd
= 0, filename
= "stdin";
705 fd
= open(filename
, O_RDONLY
| O_BINARY
);
706 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
707 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
708 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
712 tcc_open_bf(s1
, filename
, 0);
717 /* compile the C file opened in 'file'. Return non zero if errors. */
718 static int tcc_compile(TCCState
*s1
)
723 volatile int section_sym
;
726 printf("%s: **** new file\n", file
->filename
);
730 cur_text_section
= NULL
;
732 anon_sym
= SYM_FIRST_ANOM
;
734 /* file info: full path + filename */
735 section_sym
= 0; /* avoid warning */
737 section_sym
= put_elf_sym(symtab_section
, 0, 0,
738 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
739 text_section
->sh_num
, NULL
);
740 getcwd(buf
, sizeof(buf
));
742 normalize_slashes(buf
);
744 pstrcat(buf
, sizeof(buf
), "/");
745 put_stabs_r(buf
, N_SO
, 0, 0,
746 text_section
->data_offset
, text_section
, section_sym
);
747 put_stabs_r(file
->filename
, N_SO
, 0, 0,
748 text_section
->data_offset
, text_section
, section_sym
);
750 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
751 symbols can be safely used */
752 put_elf_sym(symtab_section
, 0, 0,
753 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
754 SHN_ABS
, file
->filename
);
756 /* define some often used types */
759 char_pointer_type
.t
= VT_BYTE
;
760 mk_pointer(&char_pointer_type
);
763 size_type
.t
= VT_INT
;
765 size_type
.t
= VT_LLONG
;
768 func_old_type
.t
= VT_FUNC
;
769 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
770 #ifdef TCC_TARGET_ARM
775 /* define 'void *alloca(unsigned int)' builtin function */
780 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
781 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
784 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
788 define_start
= define_stack
;
791 if (setjmp(s1
->error_jmp_buf
) == 0) {
793 s1
->error_set_jmp_enabled
= 1;
795 ch
= file
->buf_ptr
[0];
796 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
797 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
;
802 expect("declaration");
804 tcc_warning("internal compiler error: vstack leak? (%d)", vtop
- pvtop
);
806 /* end of translation unit info */
808 put_stabs_r(NULL
, N_SO
, 0, 0,
809 text_section
->data_offset
, text_section
, section_sym
);
813 s1
->error_set_jmp_enabled
= 0;
815 /* reset define stack, but leave -Dsymbols (may be incorrect if
816 they are undefined) */
817 free_defines(define_start
);
819 gen_inline_functions();
821 sym_pop(&global_stack
, NULL
);
822 sym_pop(&local_stack
, NULL
);
824 return s1
->nb_errors
!= 0 ? -1 : 0;
827 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
832 tcc_open_bf(s
, "<string>", len
);
833 memcpy(file
->buffer
, str
, len
);
834 ret
= tcc_compile(s
);
839 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
840 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
847 len2
= strlen(value
);
849 /* init file structure */
850 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
851 memcpy(file
->buffer
, sym
, len1
);
852 file
->buffer
[len1
] = ' ';
853 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
855 /* parse with define parser */
856 ch
= file
->buf_ptr
[0];
863 /* undefine a preprocessor symbol */
864 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
868 ts
= tok_alloc(sym
, strlen(sym
));
869 s
= define_find(ts
->tok
);
870 /* undefine symbol by putting an invalid name */
876 /* cleanup all static data used during compilation */
877 static void tcc_cleanup(void)
880 if (NULL
== tcc_state
)
884 /* free -D defines */
888 n
= tok_ident
- TOK_IDENT
;
889 for(i
= 0; i
< n
; i
++)
890 tcc_free(table_ident
[i
]);
891 tcc_free(table_ident
);
895 dynarray_reset(&sym_pools
, &nb_sym_pools
);
898 /* reset symbol stack */
899 sym_free_first
= NULL
;
900 /* cleanup from error/setjmp */
904 LIBTCCAPI TCCState
*tcc_new(void)
912 s
= tcc_mallocz(sizeof(TCCState
));
917 tcc_set_lib_path_w32(s
);
919 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
923 s
->include_stack_ptr
= s
->include_stack
;
925 /* we add dummy defines for some special macros to speed up tests
926 and to have working defined() */
927 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
928 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
929 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
930 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
932 /* define __TINYC__ 92X */
933 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
934 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
935 tcc_define_symbol(s
, "__TINYC__", buffer
);
937 /* standard defines */
938 tcc_define_symbol(s
, "__STDC__", NULL
);
939 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
940 tcc_define_symbol(s
, "__STDC_HOSTED__", NULL
);
943 #if defined(TCC_TARGET_I386)
944 tcc_define_symbol(s
, "__i386__", NULL
);
945 tcc_define_symbol(s
, "__i386", NULL
);
946 tcc_define_symbol(s
, "i386", NULL
);
947 #elif defined(TCC_TARGET_X86_64)
948 tcc_define_symbol(s
, "__x86_64__", NULL
);
949 #elif defined(TCC_TARGET_ARM)
950 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
951 tcc_define_symbol(s
, "__arm_elf__", NULL
);
952 tcc_define_symbol(s
, "__arm_elf", NULL
);
953 tcc_define_symbol(s
, "arm_elf", NULL
);
954 tcc_define_symbol(s
, "__arm__", NULL
);
955 tcc_define_symbol(s
, "__arm", NULL
);
956 tcc_define_symbol(s
, "arm", NULL
);
957 tcc_define_symbol(s
, "__APCS_32__", NULL
);
958 tcc_define_symbol(s
, "__ARMEL__", NULL
);
959 #if defined(TCC_ARM_EABI)
960 tcc_define_symbol(s
, "__ARM_EABI__", NULL
);
962 #if defined(TCC_ARM_HARDFLOAT)
963 s
->float_abi
= ARM_HARD_FLOAT
;
964 tcc_define_symbol(s
, "__ARM_PCS_VFP", NULL
);
966 s
->float_abi
= ARM_SOFTFP_FLOAT
;
968 #elif defined(TCC_TARGET_ARM64)
969 tcc_define_symbol(s
, "__aarch64__", NULL
);
973 tcc_define_symbol(s
, "_WIN32", NULL
);
974 # ifdef TCC_TARGET_X86_64
975 tcc_define_symbol(s
, "_WIN64", NULL
);
978 tcc_define_symbol(s
, "__unix__", NULL
);
979 tcc_define_symbol(s
, "__unix", NULL
);
980 tcc_define_symbol(s
, "unix", NULL
);
981 # if defined(__linux)
982 tcc_define_symbol(s
, "__linux__", NULL
);
983 tcc_define_symbol(s
, "__linux", NULL
);
985 # if defined(__FreeBSD__)
987 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
990 # if defined(__FreeBSD_kernel__)
991 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
995 /* TinyCC & gcc defines */
996 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
997 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
998 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
1000 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1001 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1004 #ifdef TCC_TARGET_PE
1005 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
1006 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
1008 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
1009 /* wint_t is unsigned int by default, but (signed) int on BSDs
1010 and unsigned short on windows. Other OSes might have still
1011 other conventions, sigh. */
1012 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__)
1013 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1015 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1019 #ifndef TCC_TARGET_PE
1021 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1022 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1023 /* paths for crt objects */
1024 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1027 /* no section zero */
1028 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1030 /* create standard sections */
1031 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1032 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1033 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1035 /* symbols are always generated for linking stage */
1036 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1038 ".hashtab", SHF_PRIVATE
);
1039 strtab_section
= symtab_section
->link
;
1040 s
->symtab
= symtab_section
;
1042 /* private symbol table for dynamic symbols */
1043 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1045 ".dynhashtab", SHF_PRIVATE
);
1046 s
->alacarte_link
= 1;
1048 s
->warn_implicit_function_declaration
= 1;
1050 #ifdef CHAR_IS_UNSIGNED
1051 s
->char_is_unsigned
= 1;
1053 /* enable this if you want symbols with leading underscore on windows: */
1054 #if 0 /* def TCC_TARGET_PE */
1055 s
->leading_underscore
= 1;
1057 #ifdef TCC_TARGET_I386
1060 #ifdef TCC_IS_NATIVE
1061 s
->runtime_main
= "main";
1066 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1072 /* free all sections */
1073 for(i
= 1; i
< s1
->nb_sections
; i
++)
1074 free_section(s1
->sections
[i
]);
1075 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1077 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1078 free_section(s1
->priv_sections
[i
]);
1079 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1081 /* free any loaded DLLs */
1082 #ifdef TCC_IS_NATIVE
1083 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1084 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1086 dlclose(ref
->handle
);
1090 /* free loaded dlls array */
1091 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1093 /* free library paths */
1094 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1095 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1097 /* free include paths */
1098 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1099 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1100 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1102 tcc_free(s1
->tcc_lib_path
);
1103 tcc_free(s1
->soname
);
1104 tcc_free(s1
->rpath
);
1105 tcc_free(s1
->init_symbol
);
1106 tcc_free(s1
->fini_symbol
);
1107 tcc_free(s1
->outfile
);
1108 tcc_free(s1
->deps_outfile
);
1109 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1110 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1112 #ifdef TCC_IS_NATIVE
1113 # ifdef HAVE_SELINUX
1114 munmap (s1
->write_mem
, s1
->mem_size
);
1115 munmap (s1
->runtime_mem
, s1
->mem_size
);
1117 tcc_free(s1
->runtime_mem
);
1121 if(s1
->sym_attrs
) tcc_free(s1
->sym_attrs
);
1126 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1128 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1132 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1134 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1138 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1144 /* find source file type with extension */
1145 ext
= tcc_fileextension(filename
);
1149 #ifdef CONFIG_TCC_ASM
1150 /* if .S file, define __ASSEMBLER__ like gcc does */
1151 if (!strcmp(ext
, "S"))
1152 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1156 ret
= tcc_open(s1
, filename
);
1158 if (flags
& AFF_PRINT_ERROR
)
1159 tcc_error_noabort("file '%s' not found", filename
);
1163 /* update target deps */
1164 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1165 tcc_strdup(filename
));
1167 if (flags
& AFF_PREPROCESS
) {
1168 ret
= tcc_preprocess(s1
);
1172 if (!ext
[0] || !PATHCMP(ext
, "c") || !PATHCMP(ext
, "i")) {
1173 /* C file assumed */
1174 ret
= tcc_compile(s1
);
1178 #ifdef CONFIG_TCC_ASM
1179 if (!strcmp(ext
, "S")) {
1180 /* preprocessed assembler */
1181 ret
= tcc_assemble(s1
, 1);
1185 if (!strcmp(ext
, "s")) {
1186 /* non preprocessed assembler */
1187 ret
= tcc_assemble(s1
, 0);
1193 /* assume executable format: auto guess file type */
1194 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1195 lseek(fd
, 0, SEEK_SET
);
1197 tcc_error_noabort("could not read header");
1201 if (size
== sizeof(ehdr
) &&
1202 ehdr
.e_ident
[0] == ELFMAG0
&&
1203 ehdr
.e_ident
[1] == ELFMAG1
&&
1204 ehdr
.e_ident
[2] == ELFMAG2
&&
1205 ehdr
.e_ident
[3] == ELFMAG3
) {
1207 /* do not display line number if error */
1209 if (ehdr
.e_type
== ET_REL
) {
1210 ret
= tcc_load_object_file(s1
, fd
, 0);
1214 #ifndef TCC_TARGET_PE
1215 if (ehdr
.e_type
== ET_DYN
) {
1216 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1217 #ifdef TCC_IS_NATIVE
1219 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1224 ret
= tcc_load_dll(s1
, fd
, filename
,
1225 (flags
& AFF_REFERENCED_DLL
) != 0);
1230 tcc_error_noabort("unrecognized ELF file");
1234 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1235 file
->line_num
= 0; /* do not display line number if error */
1236 ret
= tcc_load_archive(s1
, fd
);
1240 #ifdef TCC_TARGET_COFF
1241 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1242 ret
= tcc_load_coff(s1
, fd
);
1247 #ifdef TCC_TARGET_PE
1248 ret
= pe_load_file(s1
, filename
, fd
);
1250 /* as GNU ld, consider it is an ld script if not recognized */
1251 ret
= tcc_load_ldscript(s1
);
1254 tcc_error_noabort("unrecognized file type");
1261 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1263 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1264 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
);
1266 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
);
1269 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1271 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1275 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1276 const char *filename
, int flags
, char **paths
, int nb_paths
)
1281 for(i
= 0; i
< nb_paths
; i
++) {
1282 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1283 if (tcc_add_file_internal(s
, buf
, flags
) == 0)
1289 /* find and load a dll. Return non zero if not found */
1290 /* XXX: add '-rpath' option support ? */
1291 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1293 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1294 s
->library_paths
, s
->nb_library_paths
);
1297 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1299 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1300 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1301 tcc_error_noabort("file '%s' not found", filename
);
1305 /* the library name is the same as the argument of the '-l' option */
1306 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1308 #ifdef TCC_TARGET_PE
1309 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1310 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1312 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1313 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1316 if (0 == tcc_add_library_internal(s
, *pp
,
1317 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1324 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1326 #ifdef TCC_TARGET_PE
1327 /* On x86_64 'val' might not be reachable with a 32bit offset.
1328 So it is handled here as if it were in a DLL. */
1329 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1331 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1332 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1338 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1340 s
->output_type
= output_type
;
1341 if (output_type
== TCC_OUTPUT_PREPROCESS
)
1345 /* default include paths */
1346 /* -isystem paths have already been handled */
1347 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1350 /* if bound checking, then add corresponding sections */
1351 #ifdef CONFIG_TCC_BCHECK
1352 if (s
->do_bounds_check
) {
1354 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1355 /* create bounds sections */
1356 bounds_section
= new_section(s
, ".bounds",
1357 SHT_PROGBITS
, SHF_ALLOC
);
1358 lbounds_section
= new_section(s
, ".lbounds",
1359 SHT_PROGBITS
, SHF_ALLOC
);
1363 if (s
->char_is_unsigned
) {
1364 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1367 /* add debug sections */
1370 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1371 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1372 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1373 put_elf_str(stabstr_section
, "");
1374 stab_section
->link
= stabstr_section
;
1375 /* put first entry */
1376 put_stabs("", 0, 0, 0, 0);
1379 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1380 #ifdef TCC_TARGET_PE
1382 tcc_add_systemdir(s
);
1385 /* add libc crt1/crti objects */
1386 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1388 if (output_type
!= TCC_OUTPUT_DLL
)
1389 tcc_add_crt(s
, "crt1.o");
1390 tcc_add_crt(s
, "crti.o");
1396 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1398 tcc_free(s
->tcc_lib_path
);
1399 s
->tcc_lib_path
= tcc_strdup(path
);
1402 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1403 #define FD_INVERT 0x0002 /* invert value before storing */
1405 typedef struct FlagDef
{
1411 static const FlagDef warning_defs
[] = {
1412 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1413 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1414 { offsetof(TCCState
, warn_error
), 0, "error" },
1415 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1416 "implicit-function-declaration" },
1419 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1420 const char *name
, int value
)
1427 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1431 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1432 if (!strcmp(r
, p
->name
))
1437 if (p
->flags
& FD_INVERT
)
1439 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1443 /* set/reset a warning */
1444 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1449 if (!strcmp(warning_name
, "all")) {
1450 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1451 if (p
->flags
& WD_ALL
)
1452 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1456 return set_flag(s
, warning_defs
, countof(warning_defs
),
1457 warning_name
, value
);
1461 static const FlagDef flag_defs
[] = {
1462 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1463 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1464 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1465 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1466 { offsetof(TCCState
, ms_extensions
), 0, "ms-extensions" },
1469 /* set/reset a flag */
1470 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1472 return set_flag(s
, flag_defs
, countof(flag_defs
),
1477 static int strstart(const char *val
, const char **str
)
1492 /* Like strstart, but automatically takes into account that ld options can
1494 * - start with double or single dash (e.g. '--soname' or '-soname')
1495 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1496 * or '-Wl,-soname=x.so')
1498 * you provide `val` always in 'option[=]' form (no leading -)
1500 static int link_option(const char *str
, const char *val
, const char **ptr
)
1504 /* there should be 1 or 2 dashes */
1510 /* then str & val should match (potentialy up to '=') */
1514 while (*q
!= '\0' && *q
!= '=') {
1521 /* '=' near eos means ',' or '=' is ok */
1523 if (*p
!= ',' && *p
!= '=')
1534 static const char *skip_linker_arg(const char **str
)
1536 const char *s1
= *str
;
1537 const char *s2
= strchr(s1
, ',');
1538 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1542 static char *copy_linker_arg(const char *p
)
1545 skip_linker_arg(&q
);
1546 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1549 /* set linker options */
1550 static int tcc_set_linker(TCCState
*s
, const char *option
)
1552 while (option
&& *option
) {
1554 const char *p
= option
;
1558 if (link_option(option
, "Bsymbolic", &p
)) {
1560 } else if (link_option(option
, "nostdlib", &p
)) {
1562 } else if (link_option(option
, "fini=", &p
)) {
1563 s
->fini_symbol
= copy_linker_arg(p
);
1565 } else if (link_option(option
, "image-base=", &p
)
1566 || link_option(option
, "Ttext=", &p
)) {
1567 s
->text_addr
= strtoull(p
, &end
, 16);
1568 s
->has_text_addr
= 1;
1569 } else if (link_option(option
, "init=", &p
)) {
1570 s
->init_symbol
= copy_linker_arg(p
);
1572 } else if (link_option(option
, "oformat=", &p
)) {
1573 #if defined(TCC_TARGET_PE)
1574 if (strstart("pe-", &p
)) {
1575 #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
1576 if (strstart("elf64-", &p
)) {
1578 if (strstart("elf32-", &p
)) {
1580 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1581 } else if (!strcmp(p
, "binary")) {
1582 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1583 #ifdef TCC_TARGET_COFF
1584 } else if (!strcmp(p
, "coff")) {
1585 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1590 } else if (link_option(option
, "as-needed", &p
)) {
1592 } else if (link_option(option
, "O", &p
)) {
1594 } else if (link_option(option
, "rpath=", &p
)) {
1595 s
->rpath
= copy_linker_arg(p
);
1596 } else if (link_option(option
, "section-alignment=", &p
)) {
1597 s
->section_align
= strtoul(p
, &end
, 16);
1598 } else if (link_option(option
, "soname=", &p
)) {
1599 s
->soname
= copy_linker_arg(p
);
1600 #ifdef TCC_TARGET_PE
1601 } else if (link_option(option
, "file-alignment=", &p
)) {
1602 s
->pe_file_align
= strtoul(p
, &end
, 16);
1603 } else if (link_option(option
, "stack=", &p
)) {
1604 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1605 } else if (link_option(option
, "subsystem=", &p
)) {
1606 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1607 if (!strcmp(p
, "native")) {
1608 s
->pe_subsystem
= 1;
1609 } else if (!strcmp(p
, "console")) {
1610 s
->pe_subsystem
= 3;
1611 } else if (!strcmp(p
, "gui")) {
1612 s
->pe_subsystem
= 2;
1613 } else if (!strcmp(p
, "posix")) {
1614 s
->pe_subsystem
= 7;
1615 } else if (!strcmp(p
, "efiapp")) {
1616 s
->pe_subsystem
= 10;
1617 } else if (!strcmp(p
, "efiboot")) {
1618 s
->pe_subsystem
= 11;
1619 } else if (!strcmp(p
, "efiruntime")) {
1620 s
->pe_subsystem
= 12;
1621 } else if (!strcmp(p
, "efirom")) {
1622 s
->pe_subsystem
= 13;
1623 #elif defined(TCC_TARGET_ARM)
1624 if (!strcmp(p
, "wince")) {
1625 s
->pe_subsystem
= 9;
1633 if (ignoring
&& s
->warn_unsupported
) err
: {
1635 pstrcpy(buf
, sizeof buf
, e
= copy_linker_arg(option
)), tcc_free(e
);
1637 tcc_warning("unsupported linker option '%s'", buf
);
1639 tcc_error("unsupported linker option '%s'", buf
);
1641 option
= skip_linker_arg(&p
);
1646 typedef struct TCCOption
{
1666 TCC_OPTION_dumpversion
,
1668 TCC_OPTION_float_abi
,
1682 TCC_OPTION_nostdinc
,
1683 TCC_OPTION_nostdlib
,
1684 TCC_OPTION_print_search_dirs
,
1685 TCC_OPTION_rdynamic
,
1686 TCC_OPTION_pedantic
,
1698 #define TCC_OPTION_HAS_ARG 0x0001
1699 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1701 static const TCCOption tcc_options
[] = {
1702 { "h", TCC_OPTION_HELP
, 0 },
1703 { "-help", TCC_OPTION_HELP
, 0 },
1704 { "?", TCC_OPTION_HELP
, 0 },
1705 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1706 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1707 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1708 { "P", TCC_OPTION_P
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1709 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
1710 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
1711 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1712 { "bench", TCC_OPTION_bench
, 0 },
1713 #ifdef CONFIG_TCC_BACKTRACE
1714 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
1716 #ifdef CONFIG_TCC_BCHECK
1717 { "b", TCC_OPTION_b
, 0 },
1719 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1720 { "c", TCC_OPTION_c
, 0 },
1721 { "dumpversion", TCC_OPTION_dumpversion
, 0},
1722 { "d", TCC_OPTION_d
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1723 #ifdef TCC_TARGET_ARM
1724 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
1726 { "static", TCC_OPTION_static
, 0 },
1727 { "std", TCC_OPTION_std
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1728 { "shared", TCC_OPTION_shared
, 0 },
1729 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
1730 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
1731 { "pedantic", TCC_OPTION_pedantic
, 0},
1732 { "pthread", TCC_OPTION_pthread
, 0},
1733 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1734 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
1735 { "r", TCC_OPTION_r
, 0 },
1736 { "s", TCC_OPTION_s
, 0 },
1737 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1738 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1739 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1740 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
1741 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1742 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
1743 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
1744 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
1745 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
1746 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1747 { "w", TCC_OPTION_w
, 0 },
1748 { "pipe", TCC_OPTION_pipe
, 0},
1749 { "E", TCC_OPTION_E
, 0},
1750 { "MD", TCC_OPTION_MD
, 0},
1751 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
1752 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
1756 static void parse_option_D(TCCState
*s1
, const char *optarg
)
1758 char *sym
= tcc_strdup(optarg
);
1759 char *value
= strchr(sym
, '=');
1762 tcc_define_symbol(s1
, sym
, value
);
1766 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
1768 const TCCOption
*popt
;
1769 const char *optarg
, *r
;
1774 /* collect -Wl options for input such as "-Wl,-rpath -Wl,<path>" */
1776 cstr_new(&linker_arg
);
1778 while (optind
< argc
) {
1781 if (r
[0] != '-' || r
[1] == '\0') {
1782 /* add a new file */
1783 dynarray_add((void ***)&s
->files
, &s
->nb_files
, tcc_strdup(r
));
1786 /* argv[0] will be this file */
1792 /* find option in table */
1793 for(popt
= tcc_options
; ; ++popt
) {
1794 const char *p1
= popt
->name
;
1795 const char *r1
= r
+ 1;
1797 tcc_error("invalid option -- '%s'", r
);
1798 if (!strstart(p1
, &r1
))
1801 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
1802 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
1804 tcc_error("argument to '%s' is missing", r
);
1805 optarg
= argv
[optind
++];
1807 } else if (*r1
!= '\0')
1812 switch(popt
->index
) {
1813 case TCC_OPTION_HELP
:
1816 if (tcc_add_include_path(s
, optarg
) < 0)
1817 tcc_error("too many include paths");
1820 parse_option_D(s
, optarg
);
1823 tcc_undefine_symbol(s
, optarg
);
1826 tcc_add_library_path(s
, optarg
);
1829 /* set tcc utilities path (mainly for tcc development) */
1830 tcc_set_lib_path(s
, optarg
);
1833 dynarray_add((void ***)&s
->files
, &s
->nb_files
, tcc_strdup(r
));
1836 case TCC_OPTION_pthread
:
1837 parse_option_D(s
, "_REENTRANT");
1840 case TCC_OPTION_bench
:
1843 #ifdef CONFIG_TCC_BACKTRACE
1845 tcc_set_num_callers(atoi(optarg
));
1848 #ifdef CONFIG_TCC_BCHECK
1850 s
->do_bounds_check
= 1;
1859 tcc_warning("-c: some compiler action already specified (%d)", s
->output_type
);
1860 s
->output_type
= TCC_OUTPUT_OBJ
;
1863 if (*optarg
!= 'D') {
1864 if (s
->warn_unsupported
)
1865 goto unsupported_option
;
1866 tcc_error("invalid option -- '%s'", r
);
1870 #ifdef TCC_TARGET_ARM
1871 case TCC_OPTION_float_abi
:
1872 /* tcc doesn't support soft float yet */
1873 if (!strcmp(optarg
, "softfp")) {
1874 s
->float_abi
= ARM_SOFTFP_FLOAT
;
1875 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
1876 } else if (!strcmp(optarg
, "hard"))
1877 s
->float_abi
= ARM_HARD_FLOAT
;
1879 tcc_error("unsupported float abi '%s'", optarg
);
1882 case TCC_OPTION_static
:
1885 case TCC_OPTION_std
:
1886 /* silently ignore, a current purpose:
1887 allow to use a tcc as a reference compiler for "make test" */
1889 case TCC_OPTION_shared
:
1891 tcc_warning("-shared: some compiler action already specified (%d)", s
->output_type
);
1892 s
->output_type
= TCC_OUTPUT_DLL
;
1894 case TCC_OPTION_soname
:
1895 s
->soname
= tcc_strdup(optarg
);
1898 s
->option_m
= tcc_strdup(optarg
);
1901 s
->outfile
= tcc_strdup(optarg
);
1904 /* generate a .o merging several output files */
1906 tcc_warning("-r: some compiler action already specified (%d)", s
->output_type
);
1908 s
->output_type
= TCC_OUTPUT_OBJ
;
1910 case TCC_OPTION_isystem
:
1911 tcc_add_sysinclude_path(s
, optarg
);
1913 case TCC_OPTION_nostdinc
:
1916 case TCC_OPTION_nostdlib
:
1919 case TCC_OPTION_print_search_dirs
:
1920 s
->print_search_dirs
= 1;
1922 case TCC_OPTION_run
:
1924 tcc_warning("-run: some compiler action already specified (%d)", s
->output_type
);
1925 s
->output_type
= TCC_OUTPUT_MEMORY
;
1926 tcc_set_options(s
, optarg
);
1930 do ++s
->verbose
; while (*optarg
++ == 'v');
1933 if (tcc_set_flag(s
, optarg
, 1) < 0 && s
->warn_unsupported
)
1934 goto unsupported_option
;
1937 if (tcc_set_warning(s
, optarg
, 1) < 0 &&
1938 s
->warn_unsupported
)
1939 goto unsupported_option
;
1944 case TCC_OPTION_rdynamic
:
1948 if (linker_arg
.size
)
1949 --linker_arg
.size
, cstr_ccat(&linker_arg
, ',');
1950 cstr_cat(&linker_arg
, optarg
);
1951 cstr_ccat(&linker_arg
, '\0');
1955 tcc_warning("-E: some compiler action already specified (%d)", s
->output_type
);
1956 s
->output_type
= TCC_OUTPUT_PREPROCESS
;
1959 s
->Pflag
= atoi(optarg
) + 1;
1965 s
->deps_outfile
= tcc_strdup(optarg
);
1967 case TCC_OPTION_dumpversion
:
1968 printf ("%s\n", TCC_VERSION
);
1971 case TCC_OPTION_pedantic
:
1972 case TCC_OPTION_pipe
:
1978 if (s
->warn_unsupported
) {
1980 tcc_warning("unsupported option '%s'", r
);
1986 if (pthread
&& s
->output_type
!= TCC_OUTPUT_OBJ
)
1987 tcc_set_options(s
, "-lpthread");
1989 tcc_set_linker(s
, (const char *)linker_arg
.data
);
1990 cstr_free(&linker_arg
);
1995 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *str
)
2002 argc
= 0, argv
= NULL
;
2004 while (is_space(*str
))
2009 while (*str
!= '\0' && !is_space(*str
))
2012 arg
= tcc_malloc(len
+ 1);
2013 pstrncpy(arg
, s1
, len
);
2014 dynarray_add((void ***)&argv
, &argc
, arg
);
2016 ret
= tcc_parse_args(s
, argc
, argv
);
2017 dynarray_reset(&argv
, &argc
);
2021 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
2024 tt
= (double)total_time
/ 1000000.0;
2027 if (total_bytes
< 1)
2029 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
2030 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
2031 tt
, (int)(total_lines
/ tt
),
2032 total_bytes
/ tt
/ 1000000.0);
2035 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
2039 path
= getenv("C_INCLUDE_PATH");
2041 tcc_add_include_path(s
, path
);
2043 path
= getenv("CPATH");
2045 tcc_add_include_path(s
, path
);
2047 path
= getenv("LIBRARY_PATH");
2049 tcc_add_library_path(s
, path
);