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 #if defined TCC_IS_NATIVE
120 static void dlclose(void *p
)
122 FreeLibrary((HMODULE
)p
);
127 BOOL WINAPI
DllMain (HINSTANCE hDll
, DWORD dwReason
, LPVOID lpReserved
)
129 if (DLL_PROCESS_ATTACH
== dwReason
)
136 /********************************************************/
137 /* copy a string and truncate it. */
138 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
145 q_end
= buf
+ buf_size
- 1;
157 /* strcat and truncate. */
158 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
163 pstrcpy(buf
+ len
, buf_size
- len
, s
);
167 PUB_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
)
169 memcpy(out
, in
, num
);
174 /* extract the basename of a file */
175 PUB_FUNC
char *tcc_basename(const char *name
)
177 char *p
= strchr(name
, 0);
178 while (p
> name
&& !IS_DIRSEP(p
[-1]))
183 /* extract extension part of a file
185 * (if no extension, return pointer to end-of-string)
187 PUB_FUNC
char *tcc_fileextension (const char *name
)
189 char *b
= tcc_basename(name
);
190 char *e
= strrchr(b
, '.');
191 return e
? e
: strchr(b
, 0);
194 /********************************************************/
195 /* memory management */
203 PUB_FUNC
void tcc_free(void *ptr
)
208 PUB_FUNC
void *tcc_malloc(unsigned long size
)
213 tcc_error("memory full (malloc)");
217 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
220 ptr
= tcc_malloc(size
);
221 memset(ptr
, 0, size
);
225 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
228 ptr1
= realloc(ptr
, size
);
230 tcc_error("memory full (realloc)");
234 PUB_FUNC
char *tcc_strdup(const char *str
)
237 ptr
= tcc_malloc(strlen(str
) + 1);
242 PUB_FUNC
void tcc_memstats(int bench
)
248 #define MEM_DEBUG_MAGIC1 0xFEEDDEB1
249 #define MEM_DEBUG_MAGIC2 0xFEEDDEB2
250 #define MEM_DEBUG_FILE_LEN 15
252 struct mem_debug_header
{
255 struct mem_debug_header
*prev
;
256 struct mem_debug_header
*next
;
258 char file_name
[MEM_DEBUG_FILE_LEN
+ 1];
262 typedef struct mem_debug_header mem_debug_header_t
;
264 static mem_debug_header_t
*mem_debug_chain
;
265 static size_t mem_cur_size
;
266 static size_t mem_max_size
;
268 PUB_FUNC
void *tcc_malloc_debug(unsigned long size
, const char *file
, int line
)
273 mem_debug_header_t
*header
;
275 ptr
= malloc(sizeof(mem_debug_header_t
) + size
);
277 tcc_error("memory full (malloc)");
279 mem_cur_size
+= size
;
280 if (mem_cur_size
> mem_max_size
)
281 mem_max_size
= mem_cur_size
;
283 header
= (mem_debug_header_t
*)ptr
;
285 header
->magic1
= MEM_DEBUG_MAGIC1
;
286 header
->magic2
= MEM_DEBUG_MAGIC2
;
288 header
->line_num
= line
;
290 ofs
= strlen(file
) - MEM_DEBUG_FILE_LEN
;
291 strncpy(header
->file_name
, file
+ (ofs
> 0 ? ofs
: 0), MEM_DEBUG_FILE_LEN
);
292 header
->file_name
[MEM_DEBUG_FILE_LEN
] = 0;
294 header
->next
= mem_debug_chain
;
298 header
->next
->prev
= header
;
300 mem_debug_chain
= header
;
302 ptr
= (char *)ptr
+ sizeof(mem_debug_header_t
);
306 PUB_FUNC
void tcc_free_debug(void *ptr
)
308 mem_debug_header_t
*header
;
313 ptr
= (char *)ptr
- sizeof(mem_debug_header_t
);
314 header
= (mem_debug_header_t
*)ptr
;
315 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
316 header
->magic2
!= MEM_DEBUG_MAGIC2
||
317 header
->size
== (size_t)-1 )
319 tcc_error("tcc_free check failed");
322 mem_cur_size
-= header
->size
;
323 header
->size
= (size_t)-1;
326 header
->next
->prev
= header
->prev
;
329 header
->prev
->next
= header
->next
;
331 if (header
== mem_debug_chain
)
332 mem_debug_chain
= header
->next
;
338 PUB_FUNC
void *tcc_mallocz_debug(unsigned long size
, const char *file
, int line
)
341 ptr
= tcc_malloc_debug(size
,file
,line
);
342 memset(ptr
, 0, size
);
346 PUB_FUNC
void *tcc_realloc_debug(void *ptr
, unsigned long size
, const char *file
, int line
)
348 mem_debug_header_t
*header
;
349 int mem_debug_chain_update
= 0;
352 ptr
= tcc_malloc_debug(size
, file
, line
);
356 ptr
= (char *)ptr
- sizeof(mem_debug_header_t
);
357 header
= (mem_debug_header_t
*)ptr
;
358 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
359 header
->magic2
!= MEM_DEBUG_MAGIC2
||
360 header
->size
== (size_t)-1 )
363 tcc_error("tcc_realloc check failed");
366 mem_debug_chain_update
= (header
== mem_debug_chain
);
368 mem_cur_size
-= header
->size
;
369 ptr
= realloc(ptr
, sizeof(mem_debug_header_t
) + size
);
371 tcc_error("memory full (realloc)");
373 header
= (mem_debug_header_t
*)ptr
;
374 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
375 header
->magic2
!= MEM_DEBUG_MAGIC2
)
380 mem_cur_size
+= size
;
381 if (mem_cur_size
> mem_max_size
)
382 mem_max_size
= mem_cur_size
;
386 header
->next
->prev
= header
;
389 header
->prev
->next
= header
;
391 if (mem_debug_chain_update
)
392 mem_debug_chain
= header
;
394 ptr
= (char *)ptr
+ sizeof(mem_debug_header_t
);
398 PUB_FUNC
char *tcc_strdup_debug(const char *str
, const char *file
, int line
)
401 ptr
= tcc_malloc_debug(strlen(str
) + 1, file
, line
);
406 PUB_FUNC
void tcc_memstats(int bench
)
409 mem_debug_header_t
*header
= mem_debug_chain
;
411 fprintf(stderr
, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n",
412 mem_cur_size
, mem_max_size
);
415 fprintf(stderr
, "%s:%u: error: %u bytes leaked\n",
416 header
->file_name
, header
->line_num
, header
->size
);
417 header
= header
->next
;
421 fprintf(stderr
, "mem_max_size= %d bytes\n", mem_max_size
);
424 #undef MEM_DEBUG_MAGIC1
425 #undef MEM_DEBUG_MAGIC2
426 #undef MEM_DEBUG_FILE_LEN
430 #define free(p) use_tcc_free(p)
431 #define malloc(s) use_tcc_malloc(s)
432 #define realloc(p, s) use_tcc_realloc(p, s)
434 /********************************************************/
437 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
444 /* every power of two we double array size */
445 if ((nb
& (nb
- 1)) == 0) {
450 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
457 ST_FUNC
void dynarray_reset(void *pp
, int *n
)
460 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
463 tcc_free(*(void**)pp
);
467 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
475 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
476 if (c
== '{' && p
[1] && p
[2] == '}') {
479 cstr_cat(&str
, s
->tcc_lib_path
, -1);
485 cstr_ccat(&str
, '\0');
486 dynarray_add(p_ary
, p_nb_ary
, tcc_strdup(str
.data
));
493 /********************************************************/
495 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
499 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
500 strcpy(sec
->name
, name
);
501 sec
->sh_type
= sh_type
;
502 sec
->sh_flags
= sh_flags
;
510 sec
->sh_addralign
= 4;
513 sec
->sh_addralign
= 1;
516 sec
->sh_addralign
= PTR_SIZE
; /* gcc/pcc default aligment */
520 if (sh_flags
& SHF_PRIVATE
) {
521 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
523 sec
->sh_num
= s1
->nb_sections
;
524 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
530 static void free_section(Section
*s
)
535 /* realloc section and set its content to zero */
536 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
541 size
= sec
->data_allocated
;
544 while (size
< new_size
)
546 data
= tcc_realloc(sec
->data
, size
);
547 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
549 sec
->data_allocated
= size
;
552 /* reserve at least 'size' bytes in section 'sec' from
554 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
)
556 size_t offset
, offset1
;
558 offset
= sec
->data_offset
;
559 offset1
= offset
+ size
;
560 if (offset1
> sec
->data_allocated
)
561 section_realloc(sec
, offset1
);
562 sec
->data_offset
= offset1
;
563 return sec
->data
+ offset
;
566 /* reserve at least 'size' bytes from section start */
567 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
569 if (size
> sec
->data_allocated
)
570 section_realloc(sec
, size
);
571 if (size
> sec
->data_offset
)
572 sec
->data_offset
= size
;
575 /* return a reference to a section, and create it if it does not
577 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
581 for(i
= 1; i
< s1
->nb_sections
; i
++) {
582 sec
= s1
->sections
[i
];
583 if (!strcmp(name
, sec
->name
))
586 /* sections are created as PROGBITS */
587 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
590 /* update sym->c so that it points to an external symbol in section
591 'section' with value 'value' */
592 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
593 addr_t value
, unsigned long size
,
594 int can_add_underscore
)
596 int sym_type
, sym_bind
, sh_num
, info
, other
;
601 #ifdef CONFIG_TCC_BCHECK
607 else if (section
== SECTION_ABS
)
610 sh_num
= section
->sh_num
;
612 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
614 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
615 sym_type
= STT_NOTYPE
;
617 sym_type
= STT_OBJECT
;
620 if (sym
->type
.t
& VT_STATIC
)
621 sym_bind
= STB_LOCAL
;
623 if (sym
->type
.t
& VT_WEAK
)
626 sym_bind
= STB_GLOBAL
;
630 name
= get_tok_str(sym
->v
, NULL
);
631 #ifdef CONFIG_TCC_BCHECK
632 if (tcc_state
->do_bounds_check
) {
633 /* XXX: avoid doing that for statics ? */
634 /* if bound checking is activated, we change some function
635 names by adding the "__bound" prefix */
638 /* XXX: we rely only on malloc hooks */
651 strcpy(buf
, "__bound_");
661 if (sym
->type
.t
& VT_EXPORT
)
662 other
|= ST_PE_EXPORT
;
663 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
664 Sym
*ref
= sym
->type
.ref
;
665 if (ref
->a
.func_export
)
666 other
|= ST_PE_EXPORT
;
667 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
668 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
670 other
|= ST_PE_STDCALL
;
671 can_add_underscore
= 0;
674 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
675 other
|= ST_PE_IMPORT
;
676 if (sym
->type
.t
& VT_IMPORT
)
677 other
|= ST_PE_IMPORT
;
680 if (! (sym
->type
.t
& VT_STATIC
))
681 other
= (sym
->type
.t
& VT_VIS_MASK
) >> VT_VIS_SHIFT
;
683 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
685 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
688 if (sym
->asm_label
) {
689 name
= get_tok_str(sym
->asm_label
, NULL
);
691 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
692 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
694 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
695 esym
->st_value
= value
;
696 esym
->st_size
= size
;
697 esym
->st_shndx
= sh_num
;
701 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
702 addr_t value
, unsigned long size
)
704 put_extern_sym2(sym
, section
, value
, size
, 1);
707 /* add a new relocation entry to symbol 'sym' in section 's' */
708 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
,
714 put_extern_sym(sym
, NULL
, 0, 0);
717 /* now we can add ELF relocation info */
718 put_elf_reloca(symtab_section
, s
, offset
, type
, c
, addend
);
721 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
723 greloca(s
, sym
, offset
, type
, 0);
726 /********************************************************/
728 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
732 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
735 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
739 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
743 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
746 BufferedFile
**pf
, *f
;
749 /* use upper file if inline ":asm:" or token ":paste:" */
750 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
753 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
754 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
755 (*pf
)->filename
, (*pf
)->line_num
);
756 if (f
->line_num
> 0) {
757 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
758 f
->filename
, f
->line_num
- !!(tok_flags
& TOK_FLAG_BOL
));
760 strcat_printf(buf
, sizeof(buf
), "%s: ",
764 strcat_printf(buf
, sizeof(buf
), "tcc: ");
767 strcat_printf(buf
, sizeof(buf
), "warning: ");
769 strcat_printf(buf
, sizeof(buf
), "error: ");
770 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
772 if (!s1
->error_func
) {
773 /* default case: stderr */
774 if (s1
->ppfp
) /* print a newline during tcc -E */
775 fprintf(s1
->ppfp
, "\n"), fflush(s1
->ppfp
);
776 fprintf(stderr
, "%s\n", buf
);
777 fflush(stderr
); /* print error/warning now (win32) */
779 s1
->error_func(s1
->error_opaque
, buf
);
781 if (!is_warning
|| s1
->warn_error
)
785 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
786 void (*error_func
)(void *opaque
, const char *msg
))
788 s
->error_opaque
= error_opaque
;
789 s
->error_func
= error_func
;
792 /* error without aborting current compilation */
793 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
795 TCCState
*s1
= tcc_state
;
799 error1(s1
, 0, fmt
, ap
);
803 PUB_FUNC
void tcc_error(const char *fmt
, ...)
805 TCCState
*s1
= tcc_state
;
809 error1(s1
, 0, fmt
, ap
);
811 /* better than nothing: in some cases, we accept to handle errors */
812 if (s1
->error_set_jmp_enabled
) {
813 longjmp(s1
->error_jmp_buf
, 1);
815 /* XXX: eliminate this someday */
820 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
822 TCCState
*s1
= tcc_state
;
829 error1(s1
, 1, fmt
, ap
);
833 /********************************************************/
836 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
839 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
841 bf
= tcc_mallocz(sizeof(BufferedFile
) + buflen
);
842 bf
->buf_ptr
= bf
->buffer
;
843 bf
->buf_end
= bf
->buffer
+ initlen
;
844 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
845 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
847 normalize_slashes(bf
->filename
);
850 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
856 ST_FUNC
void tcc_close(void)
858 BufferedFile
*bf
= file
;
861 total_lines
+= bf
->line_num
;
867 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
870 if (strcmp(filename
, "-") == 0)
871 fd
= 0, filename
= "<stdin>";
873 fd
= open(filename
, O_RDONLY
| O_BINARY
);
874 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
875 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
876 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
880 tcc_open_bf(s1
, filename
, 0);
885 /* compile the C file opened in 'file'. Return non zero if errors. */
886 static int tcc_compile(TCCState
*s1
)
890 volatile int section_sym
;
893 printf("%s: **** new file\n", file
->filename
);
897 cur_text_section
= NULL
;
899 anon_sym
= SYM_FIRST_ANOM
;
901 /* file info: full path + filename */
902 section_sym
= 0; /* avoid warning */
904 section_sym
= put_elf_sym(symtab_section
, 0, 0,
905 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
906 text_section
->sh_num
, NULL
);
907 getcwd(buf
, sizeof(buf
));
909 normalize_slashes(buf
);
911 pstrcat(buf
, sizeof(buf
), "/");
912 put_stabs_r(buf
, N_SO
, 0, 0,
913 text_section
->data_offset
, text_section
, section_sym
);
914 put_stabs_r(file
->filename
, N_SO
, 0, 0,
915 text_section
->data_offset
, text_section
, section_sym
);
917 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
918 symbols can be safely used */
919 put_elf_sym(symtab_section
, 0, 0,
920 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
921 SHN_ABS
, file
->filename
);
923 /* define some often used types */
926 char_pointer_type
.t
= VT_BYTE
;
927 mk_pointer(&char_pointer_type
);
930 size_type
.t
= VT_INT
;
932 size_type
.t
= VT_LLONG
;
935 func_old_type
.t
= VT_FUNC
;
936 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
937 #ifdef TCC_TARGET_ARM
942 /* define 'void *alloca(unsigned int)' builtin function */
947 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
948 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
951 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
955 define_start
= define_stack
;
958 if (setjmp(s1
->error_jmp_buf
) == 0) {
960 s1
->error_set_jmp_enabled
= 1;
962 ch
= file
->buf_ptr
[0];
963 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
964 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
| PARSE_FLAG_TOK_STR
;
968 expect("declaration");
969 gen_inline_functions();
971 /* end of translation unit info */
973 put_stabs_r(NULL
, N_SO
, 0, 0,
974 text_section
->data_offset
, text_section
, section_sym
);
978 s1
->error_set_jmp_enabled
= 0;
979 /* reset define stack, but keep -D and built-ins */
980 free_defines(define_start
);
981 sym_pop(&global_stack
, NULL
);
982 sym_pop(&local_stack
, NULL
);
983 return s1
->nb_errors
!= 0 ? -1 : 0;
986 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
991 tcc_open_bf(s
, "<string>", len
);
992 memcpy(file
->buffer
, str
, len
);
993 ret
= tcc_compile(s
);
998 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
999 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
1006 len2
= strlen(value
);
1008 /* init file structure */
1009 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
1010 memcpy(file
->buffer
, sym
, len1
);
1011 file
->buffer
[len1
] = ' ';
1012 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
1014 /* parse with define parser */
1015 ch
= file
->buf_ptr
[0];
1022 /* undefine a preprocessor symbol */
1023 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
1027 ts
= tok_alloc(sym
, strlen(sym
));
1028 s
= define_find(ts
->tok
);
1029 /* undefine symbol by putting an invalid name */
1034 /* cleanup all static data used during compilation */
1035 static void tcc_cleanup(void)
1037 if (NULL
== tcc_state
)
1041 preprocess_delete();
1043 /* free sym_pools */
1044 dynarray_reset(&sym_pools
, &nb_sym_pools
);
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
);
1121 /* Those are defined by Visual Studio */
1122 tcc_define_symbol(s
, "_M_X64", "100");
1123 tcc_define_symbol(s
, "_M_AMD64", "100");
1125 /* Defined by Visual Studio. 300 == 80386. */
1126 tcc_define_symbol(s
, "_M_IX86", "300");
1129 tcc_define_symbol(s
, "__unix__", NULL
);
1130 tcc_define_symbol(s
, "__unix", NULL
);
1131 tcc_define_symbol(s
, "unix", NULL
);
1132 # if defined(__linux__)
1133 tcc_define_symbol(s
, "__linux__", NULL
);
1134 tcc_define_symbol(s
, "__linux", NULL
);
1136 # if defined(__FreeBSD__)
1137 tcc_define_symbol(s
, "__FreeBSD__", "__FreeBSD__");
1139 # if defined(__FreeBSD_kernel__)
1140 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
1143 # if defined(__NetBSD__)
1144 tcc_define_symbol(s
, "__NetBSD__", "__NetBSD__");
1146 # if defined(__OpenBSD__)
1147 tcc_define_symbol(s
, "__OpenBSD__", "__OpenBSD__");
1150 /* TinyCC & gcc defines */
1151 #if defined(TCC_TARGET_PE) && defined(TCC_TARGET_X86_64)
1152 /* 64bit Windows. */
1153 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
1154 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
1155 tcc_define_symbol(s
, "__LLP64__", NULL
);
1156 #elif defined(TCC_TARGET_X86_64) || defined(TCC_TARGET_ARM64)
1157 /* Other 64bit systems. */
1158 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1159 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1160 tcc_define_symbol(s
, "__LP64__", NULL
);
1162 /* Other 32bit systems. */
1163 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1164 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1165 tcc_define_symbol(s
, "__ILP32__", NULL
);
1168 #ifdef TCC_TARGET_PE
1169 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
1170 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
1172 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
1173 /* wint_t is unsigned int by default, but (signed) int on BSDs
1174 and unsigned short on windows. Other OSes might have still
1175 other conventions, sigh. */
1176 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__)
1177 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1179 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1183 #ifndef TCC_TARGET_PE
1185 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1186 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1187 /* paths for crt objects */
1188 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1191 /* no section zero */
1192 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1194 /* create standard sections */
1195 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1196 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1197 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1199 /* symbols are always generated for linking stage */
1200 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1202 ".hashtab", SHF_PRIVATE
);
1203 strtab_section
= symtab_section
->link
;
1204 s
->symtab
= symtab_section
;
1206 /* private symbol table for dynamic symbols */
1207 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1209 ".dynhashtab", SHF_PRIVATE
);
1210 s
->alacarte_link
= 1;
1212 s
->warn_implicit_function_declaration
= 1;
1214 #ifdef CHAR_IS_UNSIGNED
1215 s
->char_is_unsigned
= 1;
1217 /* enable this if you want symbols with leading underscore on windows: */
1218 #if 0 /* def TCC_TARGET_PE */
1219 s
->leading_underscore
= 1;
1221 #ifdef TCC_TARGET_I386
1224 #ifdef TCC_IS_NATIVE
1225 s
->runtime_main
= "main";
1230 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1233 int bench
= s1
->do_bench
;
1237 /* free all sections */
1238 for(i
= 1; i
< s1
->nb_sections
; i
++)
1239 free_section(s1
->sections
[i
]);
1240 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1242 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1243 free_section(s1
->priv_sections
[i
]);
1244 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1246 /* free any loaded DLLs */
1247 #ifdef TCC_IS_NATIVE
1248 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1249 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1251 dlclose(ref
->handle
);
1255 /* free loaded dlls array */
1256 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1258 /* free library paths */
1259 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1260 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1262 /* free include paths */
1263 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1264 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1265 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1267 tcc_free(s1
->tcc_lib_path
);
1268 tcc_free(s1
->soname
);
1269 tcc_free(s1
->rpath
);
1270 tcc_free(s1
->init_symbol
);
1271 tcc_free(s1
->fini_symbol
);
1272 tcc_free(s1
->outfile
);
1273 tcc_free(s1
->deps_outfile
);
1274 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1275 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1276 dynarray_reset(&s1
->pragma_libs
, &s1
->nb_pragma_libs
);
1278 #ifdef TCC_IS_NATIVE
1279 # ifdef HAVE_SELINUX
1280 munmap (s1
->write_mem
, s1
->mem_size
);
1281 munmap (s1
->runtime_mem
, s1
->mem_size
);
1283 tcc_free(s1
->runtime_mem
);
1287 tcc_free(s1
->sym_attrs
);
1289 tcc_memstats(bench
);
1292 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1294 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1298 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1300 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1304 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1308 filetype
= flags
& 0x0F;
1309 if (filetype
== 0) {
1310 /* use a file extension to detect a filetype */
1311 const char *ext
= tcc_fileextension(filename
);
1314 if (!strcmp(ext
, "S"))
1315 filetype
= AFF_TYPE_ASMPP
;
1316 else if (!strcmp(ext
, "s"))
1317 filetype
= AFF_TYPE_ASM
;
1318 else if (!PATHCMP(ext
, "c") || !PATHCMP(ext
, "i"))
1319 filetype
= AFF_TYPE_C
;
1321 filetype
= AFF_TYPE_BIN
;
1323 filetype
= AFF_TYPE_C
;
1328 ret
= tcc_open(s1
, filename
);
1330 if (flags
& AFF_PRINT_ERROR
)
1331 tcc_error_noabort("file '%s' not found", filename
);
1335 /* update target deps */
1336 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1337 tcc_strdup(filename
));
1340 /* if .S file, define __ASSEMBLER__ like gcc does */
1341 if (filetype
== AFF_TYPE_ASM
|| filetype
== AFF_TYPE_ASMPP
) {
1342 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1343 parse_flags
= PARSE_FLAG_ASM_FILE
;
1346 if (flags
& AFF_PREPROCESS
) {
1347 ret
= tcc_preprocess(s1
);
1348 } else if (filetype
== AFF_TYPE_C
) {
1349 ret
= tcc_compile(s1
);
1350 #ifdef CONFIG_TCC_ASM
1351 } else if (filetype
== AFF_TYPE_ASMPP
) {
1352 /* non preprocessed assembler */
1353 ret
= tcc_assemble(s1
, 1);
1354 } else if (filetype
== AFF_TYPE_ASM
) {
1355 /* preprocessed assembler */
1356 ret
= tcc_assemble(s1
, 0);
1363 obj_type
= tcc_object_type(fd
, &ehdr
);
1364 lseek(fd
, 0, SEEK_SET
);
1366 /* do not display line number if error */
1370 case AFF_BINTYPE_REL
:
1371 ret
= tcc_load_object_file(s1
, fd
, 0);
1373 #ifndef TCC_TARGET_PE
1374 case AFF_BINTYPE_DYN
:
1375 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1377 #ifdef TCC_IS_NATIVE
1378 if (NULL
== dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
))
1382 ret
= tcc_load_dll(s1
, fd
, filename
,
1383 (flags
& AFF_REFERENCED_DLL
) != 0);
1387 case AFF_BINTYPE_AR
:
1388 ret
= tcc_load_archive(s1
, fd
);
1390 #ifdef TCC_TARGET_COFF
1391 case AFF_BINTYPE_C67
:
1392 ret
= tcc_load_coff(s1
, fd
);
1396 #ifdef TCC_TARGET_PE
1397 ret
= pe_load_file(s1
, filename
, fd
);
1399 /* as GNU ld, consider it is an ld script if not recognized */
1400 ret
= tcc_load_ldscript(s1
);
1403 tcc_error_noabort("unrecognized file type");
1411 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1413 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1414 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
| s
->filetype
);
1416 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| s
->filetype
);
1419 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1421 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1425 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1426 const char *filename
, int flags
, char **paths
, int nb_paths
)
1431 for(i
= 0; i
< nb_paths
; i
++) {
1432 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1433 if (tcc_add_file_internal(s
, buf
, flags
| AFF_TYPE_BIN
) == 0)
1439 #ifndef TCC_TARGET_PE
1440 /* find and load a dll. Return non zero if not found */
1441 /* XXX: add '-rpath' option support ? */
1442 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1444 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1445 s
->library_paths
, s
->nb_library_paths
);
1449 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1451 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1452 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1453 tcc_error_noabort("file '%s' not found", filename
);
1457 /* the library name is the same as the argument of the '-l' option */
1458 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1460 #ifdef TCC_TARGET_PE
1461 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1462 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1464 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1465 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1468 if (0 == tcc_add_library_internal(s
, *pp
,
1469 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1476 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *libname
)
1478 int ret
= tcc_add_library(s
, libname
);
1480 tcc_error_noabort("cannot find library 'lib%s'", libname
);
1484 /* habdle #pragma comment(lib,) */
1485 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
)
1488 for (i
= 0; i
< s1
->nb_pragma_libs
; i
++)
1489 tcc_add_library_err(s1
, s1
->pragma_libs
[i
]);
1492 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1494 #ifdef TCC_TARGET_PE
1495 /* On x86_64 'val' might not be reachable with a 32bit offset.
1496 So it is handled here as if it were in a DLL. */
1497 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1499 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1500 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1506 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1508 s
->output_type
= output_type
;
1510 /* always elf for objects */
1511 if (output_type
== TCC_OUTPUT_OBJ
)
1512 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1514 if (s
->char_is_unsigned
)
1515 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1518 /* default include paths */
1519 /* -isystem paths have already been handled */
1520 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1523 #ifdef CONFIG_TCC_BCHECK
1524 /* if bound checking, then add corresponding sections */
1525 if (s
->do_bounds_check
) {
1527 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1528 /* create bounds sections */
1529 bounds_section
= new_section(s
, ".bounds",
1530 SHT_PROGBITS
, SHF_ALLOC
);
1531 lbounds_section
= new_section(s
, ".lbounds",
1532 SHT_PROGBITS
, SHF_ALLOC
);
1535 /* add debug sections */
1538 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1539 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1540 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1541 put_elf_str(stabstr_section
, "");
1542 stab_section
->link
= stabstr_section
;
1543 /* put first entry */
1544 put_stabs("", 0, 0, 0, 0);
1547 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1549 #ifdef TCC_TARGET_PE
1551 if (!s
->nostdlib
&& output_type
!= TCC_OUTPUT_OBJ
)
1552 tcc_add_systemdir(s
);
1555 /* add libc crt1/crti objects */
1556 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1558 if (output_type
!= TCC_OUTPUT_DLL
)
1559 tcc_add_crt(s
, "crt1.o");
1560 tcc_add_crt(s
, "crti.o");
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 static int no_flag(const char **pp
)
1591 const char *p
= *pp
;
1592 if (*p
!= 'n' || *++p
!= 'o' || *++p
!= '-')
1598 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1599 const char *name
, int value
)
1609 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1610 if (!strcmp(r
, p
->name
))
1615 if (p
->flags
& FD_INVERT
)
1617 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1621 /* set/reset a warning */
1622 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1627 if (!strcmp(warning_name
, "all")) {
1628 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1629 if (p
->flags
& WD_ALL
)
1630 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1634 return set_flag(s
, warning_defs
, countof(warning_defs
),
1635 warning_name
, value
);
1639 static const FlagDef flag_defs
[] = {
1640 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1641 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1642 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1643 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1644 { offsetof(TCCState
, ms_extensions
), 0, "ms-extensions" },
1645 { offsetof(TCCState
, old_struct_init_code
), 0, "old-struct-init-code" },
1646 { offsetof(TCCState
, dollars_in_identifiers
), 0, "dollars-in-identifiers" },
1649 /* set/reset a flag */
1650 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1652 return set_flag(s
, flag_defs
, countof(flag_defs
),
1657 static int strstart(const char *val
, const char **str
)
1672 /* Like strstart, but automatically takes into account that ld options can
1674 * - start with double or single dash (e.g. '--soname' or '-soname')
1675 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1676 * or '-Wl,-soname=x.so')
1678 * you provide `val` always in 'option[=]' form (no leading -)
1680 static int link_option(const char *str
, const char *val
, const char **ptr
)
1685 /* there should be 1 or 2 dashes */
1691 /* then str & val should match (potentialy up to '=') */
1702 while (*q
!= '\0' && *q
!= '=') {
1709 /* '=' near eos means ',' or '=' is ok */
1713 if (*p
!= ',' && *p
!= '=')
1721 static const char *skip_linker_arg(const char **str
)
1723 const char *s1
= *str
;
1724 const char *s2
= strchr(s1
, ',');
1725 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1729 static char *copy_linker_arg(const char *p
)
1732 skip_linker_arg(&q
);
1733 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1736 /* set linker options */
1737 static int tcc_set_linker(TCCState
*s
, const char *option
)
1741 const char *p
= NULL
;
1746 if (link_option(option
, "Bsymbolic", &p
)) {
1748 } else if (link_option(option
, "nostdlib", &p
)) {
1750 } else if (link_option(option
, "fini=", &p
)) {
1751 s
->fini_symbol
= copy_linker_arg(p
);
1753 } else if (link_option(option
, "image-base=", &p
)
1754 || link_option(option
, "Ttext=", &p
)) {
1755 s
->text_addr
= strtoull(p
, &end
, 16);
1756 s
->has_text_addr
= 1;
1757 } else if (link_option(option
, "init=", &p
)) {
1758 s
->init_symbol
= copy_linker_arg(p
);
1760 } else if (link_option(option
, "oformat=", &p
)) {
1761 #if defined(TCC_TARGET_PE)
1762 if (strstart("pe-", &p
)) {
1763 #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
1764 if (strstart("elf64-", &p
)) {
1766 if (strstart("elf32-", &p
)) {
1768 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1769 } else if (!strcmp(p
, "binary")) {
1770 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1771 #ifdef TCC_TARGET_COFF
1772 } else if (!strcmp(p
, "coff")) {
1773 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1778 } else if (link_option(option
, "as-needed", &p
)) {
1780 } else if (link_option(option
, "O", &p
)) {
1782 } else if (link_option(option
, "rpath=", &p
)) {
1783 s
->rpath
= copy_linker_arg(p
);
1784 } else if (link_option(option
, "section-alignment=", &p
)) {
1785 s
->section_align
= strtoul(p
, &end
, 16);
1786 } else if (link_option(option
, "soname=", &p
)) {
1787 s
->soname
= copy_linker_arg(p
);
1788 #ifdef TCC_TARGET_PE
1789 } else if (link_option(option
, "file-alignment=", &p
)) {
1790 s
->pe_file_align
= strtoul(p
, &end
, 16);
1791 } else if (link_option(option
, "stack=", &p
)) {
1792 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1793 } else if (link_option(option
, "subsystem=", &p
)) {
1794 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1795 if (!strcmp(p
, "native")) {
1796 s
->pe_subsystem
= 1;
1797 } else if (!strcmp(p
, "console")) {
1798 s
->pe_subsystem
= 3;
1799 } else if (!strcmp(p
, "gui")) {
1800 s
->pe_subsystem
= 2;
1801 } else if (!strcmp(p
, "posix")) {
1802 s
->pe_subsystem
= 7;
1803 } else if (!strcmp(p
, "efiapp")) {
1804 s
->pe_subsystem
= 10;
1805 } else if (!strcmp(p
, "efiboot")) {
1806 s
->pe_subsystem
= 11;
1807 } else if (!strcmp(p
, "efiruntime")) {
1808 s
->pe_subsystem
= 12;
1809 } else if (!strcmp(p
, "efirom")) {
1810 s
->pe_subsystem
= 13;
1811 #elif defined(TCC_TARGET_ARM)
1812 if (!strcmp(p
, "wince")) {
1813 s
->pe_subsystem
= 9;
1818 } else if (ret
= link_option(option
, "?whole-archive", &p
), ret
) {
1819 s
->alacarte_link
= ret
< 0;
1824 tcc_error("unsupported linker option '%s'", option
);
1827 if (ignoring
&& s
->warn_unsupported
)
1828 tcc_warning("unsupported linker option '%s'", option
);
1830 option
= skip_linker_arg(&p
);
1835 typedef struct TCCOption
{
1855 TCC_OPTION_dumpversion
,
1857 TCC_OPTION_float_abi
,
1865 TCC_OPTION_traditional
,
1872 TCC_OPTION_iwithprefix
,
1873 TCC_OPTION_nostdinc
,
1874 TCC_OPTION_nostdlib
,
1875 TCC_OPTION_print_search_dirs
,
1876 TCC_OPTION_rdynamic
,
1877 TCC_OPTION_pedantic
,
1889 #define TCC_OPTION_HAS_ARG 0x0001
1890 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1892 static const TCCOption tcc_options
[] = {
1893 { "h", TCC_OPTION_HELP
, 0 },
1894 { "-help", TCC_OPTION_HELP
, 0 },
1895 { "?", TCC_OPTION_HELP
, 0 },
1896 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1897 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1898 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1899 { "P", TCC_OPTION_P
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1900 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
1901 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
1902 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1903 { "bench", TCC_OPTION_bench
, 0 },
1904 #ifdef CONFIG_TCC_BACKTRACE
1905 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
1907 #ifdef CONFIG_TCC_BCHECK
1908 { "b", TCC_OPTION_b
, 0 },
1910 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1911 { "c", TCC_OPTION_c
, 0 },
1912 { "dumpversion", TCC_OPTION_dumpversion
, 0},
1913 { "d", TCC_OPTION_d
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1914 #ifdef TCC_TARGET_ARM
1915 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
1917 { "static", TCC_OPTION_static
, 0 },
1918 { "std", TCC_OPTION_std
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1919 { "shared", TCC_OPTION_shared
, 0 },
1920 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
1921 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
1922 { "pedantic", TCC_OPTION_pedantic
, 0},
1923 { "pthread", TCC_OPTION_pthread
, 0},
1924 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1925 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
1926 { "r", TCC_OPTION_r
, 0 },
1927 { "s", TCC_OPTION_s
, 0 },
1928 { "traditional", TCC_OPTION_traditional
, 0 },
1929 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1930 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1931 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1932 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
1933 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1934 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
1935 { "iwithprefix", TCC_OPTION_iwithprefix
, TCC_OPTION_HAS_ARG
},
1936 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
1937 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
1938 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
1939 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1940 { "w", TCC_OPTION_w
, 0 },
1941 { "pipe", TCC_OPTION_pipe
, 0},
1942 { "E", TCC_OPTION_E
, 0},
1943 { "MD", TCC_OPTION_MD
, 0},
1944 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
1945 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
1949 static void parse_option_D(TCCState
*s1
, const char *optarg
)
1951 char *sym
= tcc_strdup(optarg
);
1952 char *value
= strchr(sym
, '=');
1955 tcc_define_symbol(s1
, sym
, value
);
1959 static void args_parser_add_file(TCCState
*s
, const char* filename
, int filetype
)
1961 struct filespec
*f
= tcc_malloc(sizeof *f
+ strlen(filename
));
1963 strcpy(f
->name
, filename
);
1964 dynarray_add((void ***)&s
->files
, &s
->nb_files
, f
);
1967 /* read list file */
1968 static void args_parser_listfile(TCCState
*s
, const char *filename
)
1974 fd
= open(filename
, O_RDONLY
| O_BINARY
);
1976 tcc_error("file '%s' not found", filename
);
1978 len
= lseek(fd
, 0, SEEK_END
);
1979 p
= tcc_malloc(len
+ 1), p
[len
] = 0;
1980 lseek(fd
, 0, SEEK_SET
), read(fd
, p
, len
), close(fd
);
1981 tcc_set_options(s
, p
);
1985 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
1987 const TCCOption
*popt
;
1988 const char *optarg
, *r
;
1992 CString linker_arg
; /* collect -Wl options */
1995 cstr_new(&linker_arg
);
1997 while (optind
< argc
) {
2001 if (r
[0] == '@' && r
[1] != '\0') {
2002 args_parser_listfile(s
, r
+ 1);
2006 if (r
[0] != '-' || r
[1] == '\0') {
2007 args_parser_add_file(s
, r
, s
->filetype
);
2010 /* argv[0] will be this file */
2016 /* find option in table */
2017 for(popt
= tcc_options
; ; ++popt
) {
2018 const char *p1
= popt
->name
;
2019 const char *r1
= r
+ 1;
2021 tcc_error("invalid option -- '%s'", r
);
2022 if (!strstart(p1
, &r1
))
2025 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
2026 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
2029 tcc_error("argument to '%s' is missing", r
);
2030 optarg
= argv
[optind
++];
2032 } else if (*r1
!= '\0')
2037 switch(popt
->index
) {
2038 case TCC_OPTION_HELP
:
2041 tcc_add_include_path(s
, optarg
);
2044 parse_option_D(s
, optarg
);
2047 tcc_undefine_symbol(s
, optarg
);
2050 tcc_add_library_path(s
, optarg
);
2053 /* set tcc utilities path (mainly for tcc development) */
2054 tcc_set_lib_path(s
, optarg
);
2057 args_parser_add_file(s
, optarg
, AFF_TYPE_LIBWH
- s
->alacarte_link
);
2060 case TCC_OPTION_pthread
:
2061 parse_option_D(s
, "_REENTRANT");
2062 s
->option_pthread
= 1;
2064 case TCC_OPTION_bench
:
2067 #ifdef CONFIG_TCC_BACKTRACE
2069 tcc_set_num_callers(atoi(optarg
));
2072 #ifdef CONFIG_TCC_BCHECK
2074 s
->do_bounds_check
= 1;
2085 tcc_warning("-%s: overriding compiler action already specified", popt
->name
);
2091 else if (*optarg
== 'M')
2094 goto unsupported_option
;
2096 #ifdef TCC_TARGET_ARM
2097 case TCC_OPTION_float_abi
:
2098 /* tcc doesn't support soft float yet */
2099 if (!strcmp(optarg
, "softfp")) {
2100 s
->float_abi
= ARM_SOFTFP_FLOAT
;
2101 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
2102 } else if (!strcmp(optarg
, "hard"))
2103 s
->float_abi
= ARM_HARD_FLOAT
;
2105 tcc_error("unsupported float abi '%s'", optarg
);
2108 case TCC_OPTION_static
:
2111 case TCC_OPTION_std
:
2112 /* silently ignore, a current purpose:
2113 allow to use a tcc as a reference compiler for "make test" */
2115 case TCC_OPTION_shared
:
2117 goto set_output_type
;
2118 case TCC_OPTION_soname
:
2119 s
->soname
= tcc_strdup(optarg
);
2122 s
->option_m
= tcc_strdup(optarg
);
2126 tcc_warning("multiple -o option");
2127 tcc_free(s
->outfile
);
2129 s
->outfile
= tcc_strdup(optarg
);
2132 /* generate a .o merging several output files */
2135 goto set_output_type
;
2136 case TCC_OPTION_isystem
:
2137 tcc_add_sysinclude_path(s
, optarg
);
2139 case TCC_OPTION_iwithprefix
:
2140 snprintf(buf
, sizeof buf
, "{B}/%s", optarg
);
2141 tcc_add_sysinclude_path(s
, buf
);
2143 case TCC_OPTION_nostdinc
:
2146 case TCC_OPTION_nostdlib
:
2149 case TCC_OPTION_print_search_dirs
:
2150 s
->print_search_dirs
= 1;
2152 case TCC_OPTION_run
:
2153 #ifndef TCC_IS_NATIVE
2154 tcc_error("-run is not available in a cross compiler");
2156 tcc_set_options(s
, optarg
);
2158 x
= TCC_OUTPUT_MEMORY
;
2159 goto set_output_type
;
2161 do ++s
->verbose
; while (*optarg
++ == 'v');
2164 if (tcc_set_flag(s
, optarg
, 1) < 0)
2165 goto unsupported_option
;
2168 if (tcc_set_warning(s
, optarg
, 1) < 0)
2169 goto unsupported_option
;
2174 case TCC_OPTION_rdynamic
:
2178 if (linker_arg
.size
)
2179 --linker_arg
.size
, cstr_ccat(&linker_arg
, ',');
2180 cstr_cat(&linker_arg
, optarg
, 0);
2181 if (tcc_set_linker(s
, linker_arg
.data
))
2182 cstr_free(&linker_arg
);
2185 x
= TCC_OUTPUT_PREPROCESS
;
2186 goto set_output_type
;
2188 s
->Pflag
= atoi(optarg
) + 1;
2194 s
->deps_outfile
= tcc_strdup(optarg
);
2196 case TCC_OPTION_dumpversion
:
2197 printf ("%s\n", TCC_VERSION
);
2202 s
->filetype
= AFF_TYPE_C
;
2203 else if (*optarg
== 'a')
2204 s
->filetype
= AFF_TYPE_ASMPP
;
2205 else if (*optarg
== 'n')
2206 s
->filetype
= AFF_TYPE_NONE
;
2208 tcc_warning("unsupported language '%s'", optarg
);
2213 tcc_define_symbol(s
, "__OPTIMIZE__", NULL
);
2215 case TCC_OPTION_traditional
:
2216 case TCC_OPTION_pedantic
:
2217 case TCC_OPTION_pipe
:
2223 if (s
->warn_unsupported
)
2224 tcc_warning("unsupported option '%s'", r
);
2229 if (linker_arg
.size
) {
2230 r
= linker_arg
.data
;
2237 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *r
)
2244 argc
= 0, argv
= NULL
;
2246 while (c
= (unsigned char)*r
, c
&& c
<= ' ')
2252 while (c
= (unsigned char)*r
, c
) {
2254 if (c
== '\\' && (*r
== '"' || *r
== '\\')) {
2256 } else if (c
== '"') {
2259 } else if (q
== 0 && c
<= ' ') {
2265 //printf("<%s>\n", str.data), fflush(stdout);
2266 dynarray_add((void ***)&argv
, &argc
, tcc_strdup(str
.data
));
2269 ret
= tcc_parse_args(s
, argc
, argv
);
2270 dynarray_reset(&argv
, &argc
);
2274 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
2277 tt
= (double)total_time
/ 1000000.0;
2280 if (total_bytes
< 1)
2282 fprintf(stderr
, "%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
2283 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
2284 tt
, (int)(total_lines
/ tt
),
2285 total_bytes
/ tt
/ 1000000.0);
2288 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
2292 path
= getenv("C_INCLUDE_PATH");
2294 tcc_add_include_path(s
, path
);
2296 path
= getenv("CPATH");
2298 tcc_add_include_path(s
, path
);
2300 path
= getenv("LIBRARY_PATH");
2302 tcc_add_library_path(s
, path
);