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
51 #ifdef TCC_TARGET_X86_64
52 #include "x86_64-gen.c"
56 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
60 #ifdef TCC_TARGET_COFF
66 #endif /* ONE_SOURCE */
68 /********************************************************/
69 #ifndef CONFIG_TCC_ASM
70 ST_FUNC
void asm_instr(void)
72 tcc_error("inline asm() not supported");
74 ST_FUNC
void asm_global_instr(void)
76 tcc_error("inline asm() not supported");
80 /********************************************************/
83 static char *normalize_slashes(char *path
)
86 for (p
= path
; *p
; ++p
)
92 static HMODULE tcc_module
;
94 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
95 static void tcc_set_lib_path_w32(TCCState
*s
)
98 GetModuleFileNameA(tcc_module
, path
, sizeof path
);
99 p
= tcc_basename(normalize_slashes(strlwr(path
)));
100 if (p
- 5 > path
&& 0 == strncmp(p
- 5, "/bin/", 5))
105 tcc_set_lib_path(s
, path
);
109 static void tcc_add_systemdir(TCCState
*s
)
112 GetSystemDirectory(buf
, sizeof buf
);
113 tcc_add_library_path(s
, normalize_slashes(buf
));
117 #ifndef CONFIG_TCC_STATIC
118 void dlclose(void *p
)
120 FreeLibrary((HMODULE
)p
);
125 BOOL WINAPI
DllMain (HANDLE hDll
, DWORD dwReason
, LPVOID lpReserved
)
127 if (DLL_PROCESS_ATTACH
== dwReason
)
134 /********************************************************/
135 /* copy a string and truncate it. */
136 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
143 q_end
= buf
+ buf_size
- 1;
155 /* strcat and truncate. */
156 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
161 pstrcpy(buf
+ len
, buf_size
- len
, s
);
165 PUB_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
)
167 memcpy(out
, in
, num
);
172 /* extract the basename of a file */
173 PUB_FUNC
char *tcc_basename(const char *name
)
175 char *p
= strchr(name
, 0);
176 while (p
> name
&& !IS_DIRSEP(p
[-1]))
181 /* extract extension part of a file
183 * (if no extension, return pointer to end-of-string)
185 PUB_FUNC
char *tcc_fileextension (const char *name
)
187 char *b
= tcc_basename(name
);
188 char *e
= strrchr(b
, '.');
189 return e
? e
: strchr(b
, 0);
192 /********************************************************/
193 /* memory management */
202 unsigned malloc_usable_size(void*);
205 PUB_FUNC
void tcc_free(void *ptr
)
208 mem_cur_size
-= malloc_usable_size(ptr
);
213 PUB_FUNC
void *tcc_malloc(unsigned long size
)
218 tcc_error("memory full");
220 mem_cur_size
+= malloc_usable_size(ptr
);
221 if (mem_cur_size
> mem_max_size
)
222 mem_max_size
= mem_cur_size
;
227 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
230 ptr
= tcc_malloc(size
);
231 memset(ptr
, 0, size
);
235 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
239 mem_cur_size
-= malloc_usable_size(ptr
);
241 ptr1
= realloc(ptr
, size
);
243 tcc_error("memory full");
245 /* NOTE: count not correct if alloc error, but not critical */
246 mem_cur_size
+= malloc_usable_size(ptr1
);
247 if (mem_cur_size
> mem_max_size
)
248 mem_max_size
= mem_cur_size
;
253 PUB_FUNC
char *tcc_strdup(const char *str
)
256 ptr
= tcc_malloc(strlen(str
) + 1);
261 PUB_FUNC
void tcc_memstats(void)
264 printf("memory in use: %d\n", mem_cur_size
);
268 #define free(p) use_tcc_free(p)
269 #define malloc(s) use_tcc_malloc(s)
270 #define realloc(p, s) use_tcc_realloc(p, s)
272 /********************************************************/
275 PUB_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
282 /* every power of two we double array size */
283 if ((nb
& (nb
- 1)) == 0) {
288 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
295 PUB_FUNC
void dynarray_reset(void *pp
, int *n
)
298 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
301 tcc_free(*(void**)pp
);
305 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
313 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
314 if (c
== '{' && p
[1] && p
[2] == '}') {
317 cstr_cat(&str
, s
->tcc_lib_path
);
322 cstr_ccat(&str
, '\0');
323 dynarray_add(p_ary
, p_nb_ary
, str
.data
);
328 /********************************************************/
330 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
334 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
335 strcpy(sec
->name
, name
);
336 sec
->sh_type
= sh_type
;
337 sec
->sh_flags
= sh_flags
;
345 sec
->sh_addralign
= 4;
348 sec
->sh_addralign
= 1;
351 sec
->sh_addralign
= 32; /* default conservative alignment */
355 if (sh_flags
& SHF_PRIVATE
) {
356 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
358 sec
->sh_num
= s1
->nb_sections
;
359 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
365 static void free_section(Section
*s
)
370 /* realloc section and set its content to zero */
371 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
376 size
= sec
->data_allocated
;
379 while (size
< new_size
)
381 data
= tcc_realloc(sec
->data
, size
);
382 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
384 sec
->data_allocated
= size
;
387 /* reserve at least 'size' bytes in section 'sec' from
389 ST_FUNC
void *section_ptr_add(Section
*sec
, unsigned long size
)
391 unsigned long offset
, offset1
;
393 offset
= sec
->data_offset
;
394 offset1
= offset
+ size
;
395 if (offset1
> sec
->data_allocated
)
396 section_realloc(sec
, offset1
);
397 sec
->data_offset
= offset1
;
398 return sec
->data
+ offset
;
401 /* reserve at least 'size' bytes from section start */
402 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
404 if (size
> sec
->data_allocated
)
405 section_realloc(sec
, size
);
406 if (size
> sec
->data_offset
)
407 sec
->data_offset
= size
;
410 /* return a reference to a section, and create it if it does not
412 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
416 for(i
= 1; i
< s1
->nb_sections
; i
++) {
417 sec
= s1
->sections
[i
];
418 if (!strcmp(name
, sec
->name
))
421 /* sections are created as PROGBITS */
422 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
425 /* update sym->c so that it points to an external symbol in section
426 'section' with value 'value' */
427 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
428 addr_t value
, unsigned long size
,
429 int can_add_underscore
)
431 int sym_type
, sym_bind
, sh_num
, info
, other
;
438 else if (section
== SECTION_ABS
)
441 sh_num
= section
->sh_num
;
443 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
445 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
446 sym_type
= STT_NOTYPE
;
448 sym_type
= STT_OBJECT
;
451 if (sym
->type
.t
& VT_STATIC
)
452 sym_bind
= STB_LOCAL
;
454 if (sym
->type
.t
& VT_WEAK
)
457 sym_bind
= STB_GLOBAL
;
461 name
= get_tok_str(sym
->v
, NULL
);
462 #ifdef CONFIG_TCC_BCHECK
463 if (tcc_state
->do_bounds_check
) {
466 /* XXX: avoid doing that for statics ? */
467 /* if bound checking is activated, we change some function
468 names by adding the "__bound" prefix */
471 /* XXX: we rely only on malloc hooks */
484 strcpy(buf
, "__bound_");
494 if (sym
->type
.t
& VT_EXPORT
)
496 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
497 int attr
= sym
->type
.ref
->r
;
498 if (FUNC_EXPORT(attr
))
500 if (FUNC_CALL(attr
) == FUNC_STDCALL
&& can_add_underscore
) {
501 sprintf(buf1
, "_%s@%d", name
, FUNC_ARGS(attr
) * PTR_SIZE
);
504 can_add_underscore
= 0;
507 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
509 if (sym
->type
.t
& VT_IMPORT
)
513 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
515 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
518 if (sym
->asm_label
) {
519 name
= sym
->asm_label
;
521 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
522 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
524 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
525 esym
->st_value
= value
;
526 esym
->st_size
= size
;
527 esym
->st_shndx
= sh_num
;
531 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
532 addr_t value
, unsigned long size
)
534 put_extern_sym2(sym
, section
, value
, size
, 1);
537 /* add a new relocation entry to symbol 'sym' in section 's' */
538 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
543 put_extern_sym(sym
, NULL
, 0, 0);
546 /* now we can add ELF relocation info */
547 put_elf_reloc(symtab_section
, s
, offset
, type
, c
);
550 /********************************************************/
552 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
556 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
559 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
563 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
567 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
574 for(f
= s1
->include_stack
; f
< s1
->include_stack_ptr
; f
++)
575 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
576 (*f
)->filename
, (*f
)->line_num
);
577 if (file
->line_num
> 0) {
578 strcat_printf(buf
, sizeof(buf
),
579 "%s:%d: ", file
->filename
, file
->line_num
);
581 strcat_printf(buf
, sizeof(buf
),
582 "%s: ", file
->filename
);
585 strcat_printf(buf
, sizeof(buf
),
589 strcat_printf(buf
, sizeof(buf
), "warning: ");
591 strcat_printf(buf
, sizeof(buf
), "error: ");
592 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
594 if (!s1
->error_func
) {
595 /* default case: stderr */
596 fprintf(stderr
, "%s\n", buf
);
598 s1
->error_func(s1
->error_opaque
, buf
);
600 if (!is_warning
|| s1
->warn_error
)
604 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
605 void (*error_func
)(void *opaque
, const char *msg
))
607 s
->error_opaque
= error_opaque
;
608 s
->error_func
= error_func
;
611 /* error without aborting current compilation */
612 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
614 TCCState
*s1
= tcc_state
;
618 error1(s1
, 0, fmt
, ap
);
622 PUB_FUNC
void tcc_error(const char *fmt
, ...)
624 TCCState
*s1
= tcc_state
;
628 error1(s1
, 0, fmt
, ap
);
630 /* better than nothing: in some cases, we accept to handle errors */
631 if (s1
->error_set_jmp_enabled
) {
632 longjmp(s1
->error_jmp_buf
, 1);
634 /* XXX: eliminate this someday */
639 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
641 TCCState
*s1
= tcc_state
;
648 error1(s1
, 1, fmt
, ap
);
652 /********************************************************/
655 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
658 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
660 bf
= tcc_malloc(sizeof(BufferedFile
) + buflen
);
661 bf
->buf_ptr
= bf
->buffer
;
662 bf
->buf_end
= bf
->buffer
+ initlen
;
663 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
664 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
666 normalize_slashes(bf
->filename
);
669 bf
->ifndef_macro
= 0;
670 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
676 ST_FUNC
void tcc_close(void)
678 BufferedFile
*bf
= file
;
681 total_lines
+= bf
->line_num
;
687 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
690 if (strcmp(filename
, "-") == 0)
691 fd
= 0, filename
= "stdin";
693 fd
= open(filename
, O_RDONLY
| O_BINARY
);
694 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
695 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
696 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
700 tcc_open_bf(s1
, filename
, 0);
705 /* compile the C file opened in 'file'. Return non zero if errors. */
706 static int tcc_compile(TCCState
*s1
)
711 volatile int section_sym
;
714 printf("%s: **** new file\n", file
->filename
);
718 cur_text_section
= NULL
;
720 anon_sym
= SYM_FIRST_ANOM
;
722 /* file info: full path + filename */
723 section_sym
= 0; /* avoid warning */
725 section_sym
= put_elf_sym(symtab_section
, 0, 0,
726 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
727 text_section
->sh_num
, NULL
);
728 getcwd(buf
, sizeof(buf
));
730 normalize_slashes(buf
);
732 pstrcat(buf
, sizeof(buf
), "/");
733 put_stabs_r(buf
, N_SO
, 0, 0,
734 text_section
->data_offset
, text_section
, section_sym
);
735 put_stabs_r(file
->filename
, N_SO
, 0, 0,
736 text_section
->data_offset
, text_section
, section_sym
);
738 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
739 symbols can be safely used */
740 put_elf_sym(symtab_section
, 0, 0,
741 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
742 SHN_ABS
, file
->filename
);
744 /* define some often used types */
747 char_pointer_type
.t
= VT_BYTE
;
748 mk_pointer(&char_pointer_type
);
751 size_type
.t
= VT_INT
;
753 size_type
.t
= VT_LLONG
;
756 func_old_type
.t
= VT_FUNC
;
757 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
758 #ifdef TCC_TARGET_ARM
763 /* define 'void *alloca(unsigned int)' builtin function */
768 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
769 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
772 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
776 define_start
= define_stack
;
779 if (setjmp(s1
->error_jmp_buf
) == 0) {
781 s1
->error_set_jmp_enabled
= 1;
783 ch
= file
->buf_ptr
[0];
784 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
785 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
;
790 expect("declaration");
792 tcc_warning("internal compiler error: vstack leak? (%d)", vtop
- pvtop
);
794 /* end of translation unit info */
796 put_stabs_r(NULL
, N_SO
, 0, 0,
797 text_section
->data_offset
, text_section
, section_sym
);
801 s1
->error_set_jmp_enabled
= 0;
803 /* reset define stack, but leave -Dsymbols (may be incorrect if
804 they are undefined) */
805 free_defines(define_start
);
807 gen_inline_functions();
809 sym_pop(&global_stack
, NULL
);
810 sym_pop(&local_stack
, NULL
);
812 return s1
->nb_errors
!= 0 ? -1 : 0;
815 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
820 tcc_open_bf(s
, "<string>", len
);
821 memcpy(file
->buffer
, str
, len
);
822 ret
= tcc_compile(s
);
827 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
828 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
835 len2
= strlen(value
);
837 /* init file structure */
838 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
839 memcpy(file
->buffer
, sym
, len1
);
840 file
->buffer
[len1
] = ' ';
841 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
843 /* parse with define parser */
844 ch
= file
->buf_ptr
[0];
851 /* undefine a preprocessor symbol */
852 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
856 ts
= tok_alloc(sym
, strlen(sym
));
857 s
= define_find(ts
->tok
);
858 /* undefine symbol by putting an invalid name */
863 static void tcc_cleanup(void)
867 if (NULL
== tcc_state
)
871 /* free -D defines */
875 n
= tok_ident
- TOK_IDENT
;
876 for(i
= 0; i
< n
; i
++)
877 tcc_free(table_ident
[i
]);
878 tcc_free(table_ident
);
881 dynarray_reset(&sym_pools
, &nb_sym_pools
);
884 /* reset symbol stack */
885 sym_free_first
= NULL
;
886 /* cleanup from error/setjmp */
890 LIBTCCAPI TCCState
*tcc_new(void)
898 s
= tcc_mallocz(sizeof(TCCState
));
903 tcc_set_lib_path_w32(s
);
905 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
907 s
->output_type
= TCC_OUTPUT_MEMORY
;
909 s
->include_stack_ptr
= s
->include_stack
;
911 /* we add dummy defines for some special macros to speed up tests
912 and to have working defined() */
913 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
914 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
915 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
916 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
918 /* standard defines */
919 tcc_define_symbol(s
, "__STDC__", NULL
);
920 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
921 #if defined(TCC_TARGET_I386)
922 tcc_define_symbol(s
, "__i386__", NULL
);
923 tcc_define_symbol(s
, "__i386", NULL
);
924 tcc_define_symbol(s
, "i386", NULL
);
926 #if defined(TCC_TARGET_X86_64)
927 tcc_define_symbol(s
, "__x86_64__", NULL
);
929 #if defined(TCC_TARGET_ARM)
930 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
931 tcc_define_symbol(s
, "__arm_elf__", NULL
);
932 tcc_define_symbol(s
, "__arm_elf", NULL
);
933 tcc_define_symbol(s
, "arm_elf", NULL
);
934 tcc_define_symbol(s
, "__arm__", NULL
);
935 tcc_define_symbol(s
, "__arm", NULL
);
936 tcc_define_symbol(s
, "arm", NULL
);
937 tcc_define_symbol(s
, "__APCS_32__", NULL
);
940 tcc_define_symbol(s
, "_WIN32", NULL
);
941 #ifdef TCC_TARGET_X86_64
942 tcc_define_symbol(s
, "_WIN64", NULL
);
945 tcc_define_symbol(s
, "__unix__", NULL
);
946 tcc_define_symbol(s
, "__unix", NULL
);
947 tcc_define_symbol(s
, "unix", NULL
);
948 #if defined(__FreeBSD__)
950 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
953 #if defined(__FreeBSD_kernel__)
954 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
957 tcc_define_symbol(s
, "__linux__", NULL
);
958 tcc_define_symbol(s
, "__linux", NULL
);
961 /* tiny C specific defines */
962 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
963 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
964 tcc_define_symbol(s
, "__TINYC__", buffer
);
966 /* tiny C & gcc defines */
967 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
968 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
969 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
971 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
972 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
976 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
978 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
982 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
983 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
985 #ifndef TCC_TARGET_PE
986 /* default library paths */
987 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
988 /* paths for crt objects */
989 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
992 /* no section zero */
993 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
995 /* create standard sections */
996 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
997 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
998 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1000 /* symbols are always generated for linking stage */
1001 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1003 ".hashtab", SHF_PRIVATE
);
1004 strtab_section
= symtab_section
->link
;
1005 s
->symtab
= symtab_section
;
1007 /* private symbol table for dynamic symbols */
1008 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1010 ".dynhashtab", SHF_PRIVATE
);
1011 s
->alacarte_link
= 1;
1014 #ifdef CHAR_IS_UNSIGNED
1015 s
->char_is_unsigned
= 1;
1017 /* enable this if you want symbols with leading underscore on windows: */
1018 #if defined(TCC_TARGET_PE) && 0
1019 s
->leading_underscore
= 1;
1021 if (s
->section_align
== 0)
1022 s
->section_align
= ELF_PAGE_SIZE
;
1023 #ifdef TCC_TARGET_I386
1029 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1035 /* free all sections */
1036 for(i
= 1; i
< s1
->nb_sections
; i
++)
1037 free_section(s1
->sections
[i
]);
1038 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1040 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1041 free_section(s1
->priv_sections
[i
]);
1042 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1044 /* free any loaded DLLs */
1045 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1046 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1048 dlclose(ref
->handle
);
1051 /* free loaded dlls array */
1052 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1054 /* free library paths */
1055 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1056 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1058 /* free include paths */
1059 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1060 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1061 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1063 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1065 tcc_free(s1
->tcc_lib_path
);
1068 munmap (s1
->write_mem
, s1
->mem_size
);
1069 munmap (s1
->runtime_mem
, s1
->mem_size
);
1071 tcc_free(s1
->runtime_mem
);
1076 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1078 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1082 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1084 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1088 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1094 /* find source file type with extension */
1095 ext
= tcc_fileextension(filename
);
1099 #ifdef CONFIG_TCC_ASM
1100 /* if .S file, define __ASSEMBLER__ like gcc does */
1101 if (!strcmp(ext
, "S"))
1102 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1106 ret
= tcc_open(s1
, filename
);
1108 if (flags
& AFF_PRINT_ERROR
)
1109 tcc_error_noabort("file '%s' not found", filename
);
1113 /* update target deps */
1114 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1115 tcc_strdup(filename
));
1117 if (flags
& AFF_PREPROCESS
) {
1118 ret
= tcc_preprocess(s1
);
1122 if (!ext
[0] || !PATHCMP(ext
, "c")) {
1123 /* C file assumed */
1124 ret
= tcc_compile(s1
);
1128 #ifdef CONFIG_TCC_ASM
1129 if (!strcmp(ext
, "S")) {
1130 /* preprocessed assembler */
1131 ret
= tcc_assemble(s1
, 1);
1135 if (!strcmp(ext
, "s")) {
1136 /* non preprocessed assembler */
1137 ret
= tcc_assemble(s1
, 0);
1143 /* assume executable format: auto guess file type */
1144 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1145 lseek(fd
, 0, SEEK_SET
);
1147 tcc_error_noabort("could not read header");
1151 if (size
== sizeof(ehdr
) &&
1152 ehdr
.e_ident
[0] == ELFMAG0
&&
1153 ehdr
.e_ident
[1] == ELFMAG1
&&
1154 ehdr
.e_ident
[2] == ELFMAG2
&&
1155 ehdr
.e_ident
[3] == ELFMAG3
) {
1157 /* do not display line number if error */
1159 if (ehdr
.e_type
== ET_REL
) {
1160 ret
= tcc_load_object_file(s1
, fd
, 0);
1164 #ifndef TCC_TARGET_PE
1165 if (ehdr
.e_type
== ET_DYN
) {
1166 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1167 #ifdef TCC_IS_NATIVE
1169 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1174 ret
= tcc_load_dll(s1
, fd
, filename
,
1175 (flags
& AFF_REFERENCED_DLL
) != 0);
1180 tcc_error_noabort("unrecognized ELF file");
1184 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1185 file
->line_num
= 0; /* do not display line number if error */
1186 ret
= tcc_load_archive(s1
, fd
);
1190 #ifdef TCC_TARGET_COFF
1191 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1192 ret
= tcc_load_coff(s1
, fd
);
1197 #ifdef TCC_TARGET_PE
1198 ret
= pe_load_file(s1
, filename
, fd
);
1200 /* as GNU ld, consider it is an ld script if not recognized */
1201 ret
= tcc_load_ldscript(s1
);
1204 tcc_error_noabort("unrecognized file type");
1211 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1213 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1214 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
);
1216 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
);
1219 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1221 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1225 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1226 const char *filename
, int flags
, char **paths
, int nb_paths
)
1231 for(i
= 0; i
< nb_paths
; i
++) {
1232 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1233 if (tcc_add_file_internal(s
, buf
, flags
) == 0)
1239 #ifndef TCC_TARGET_PE
1240 /* find and load a dll. Return non zero if not found */
1241 /* XXX: add '-rpath' option support ? */
1242 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1244 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1245 s
->library_paths
, s
->nb_library_paths
);
1249 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1251 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1252 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1253 tcc_error_noabort("file '%s' not found", filename
);
1257 /* the library name is the same as the argument of the '-l' option */
1258 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1260 #ifdef TCC_TARGET_PE
1261 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1262 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1264 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1265 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1268 if (0 == tcc_add_library_internal(s
, *pp
,
1269 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1276 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1278 #ifdef TCC_TARGET_PE
1279 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1281 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1282 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1288 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1290 s
->output_type
= output_type
;
1293 /* default include paths */
1294 /* -isystem paths have already been handled */
1295 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1298 /* if bound checking, then add corresponding sections */
1299 #ifdef CONFIG_TCC_BCHECK
1300 if (s
->do_bounds_check
) {
1302 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1303 /* create bounds sections */
1304 bounds_section
= new_section(s
, ".bounds",
1305 SHT_PROGBITS
, SHF_ALLOC
);
1306 lbounds_section
= new_section(s
, ".lbounds",
1307 SHT_PROGBITS
, SHF_ALLOC
);
1311 if (s
->char_is_unsigned
) {
1312 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1315 /* add debug sections */
1318 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1319 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1320 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1321 put_elf_str(stabstr_section
, "");
1322 stab_section
->link
= stabstr_section
;
1323 /* put first entry */
1324 put_stabs("", 0, 0, 0, 0);
1327 #ifdef TCC_TARGET_PE
1328 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1330 tcc_add_systemdir(s
);
1333 /* add libc crt1/crti objects */
1334 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1336 if (output_type
!= TCC_OUTPUT_DLL
)
1337 tcc_add_crt(s
, "crt1.o");
1338 tcc_add_crt(s
, "crti.o");
1344 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1345 #define FD_INVERT 0x0002 /* invert value before storing */
1347 typedef struct FlagDef
{
1353 static const FlagDef warning_defs
[] = {
1354 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1355 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1356 { offsetof(TCCState
, warn_error
), 0, "error" },
1357 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1358 "implicit-function-declaration" },
1361 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1362 const char *name
, int value
)
1369 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1373 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1374 if (!strcmp(r
, p
->name
))
1379 if (p
->flags
& FD_INVERT
)
1381 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1386 LIBTCCAPI
void tcc_enable_debug(TCCState
*s
)
1391 /* set/reset a warning */
1392 LIBTCCAPI
int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1397 if (!strcmp(warning_name
, "all")) {
1398 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1399 if (p
->flags
& WD_ALL
)
1400 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1404 return set_flag(s
, warning_defs
, countof(warning_defs
),
1405 warning_name
, value
);
1409 static const FlagDef flag_defs
[] = {
1410 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1411 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1412 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1413 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1416 /* set/reset a flag */
1417 PUB_FUNC
int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1419 return set_flag(s
, flag_defs
, countof(flag_defs
),
1424 static int strstart(const char *str
, const char *val
, char **ptr
)
1429 while (*q
!= '\0') {
1441 /* Like strstart, but automatically takes into account that ld options can
1443 * - start with double or single dash (e.g. '--soname' or '-soname')
1444 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1445 * or '-Wl,-soname=x.so')
1447 * you provide `val` always in 'option[=]' form (no leading -)
1449 static int link_option(const char *str
, const char *val
, char **ptr
)
1453 /* there should be 1 or 2 dashes */
1459 /* then str & val should match (potentialy up to '=') */
1463 while (*q
!= '\0' && *q
!= '=') {
1470 /* '=' near eos means ',' or '=' is ok */
1472 if (*p
!= ',' && *p
!= '=')
1484 /* set linker options */
1485 PUB_FUNC
const char * tcc_set_linker(TCCState
*s
, char *option
, int multi
)
1490 while (option
&& *option
) {
1492 if (link_option(option
, "Bsymbolic", &p
)) {
1494 } else if (link_option(option
, "nostdlib", &p
)) {
1496 } else if (link_option(option
, "fini=", &p
)) {
1498 if (s
->warn_unsupported
)
1499 tcc_warning("ignoring -fini %s", p
);
1500 } else if (link_option(option
, "image-base=", &p
)) {
1501 s
->text_addr
= strtoull(p
, &end
, 16);
1502 s
->has_text_addr
= 1;
1503 } else if (link_option(option
, "init=", &p
)) {
1505 if (s
->warn_unsupported
)
1506 tcc_warning("ignoring -init %s", p
);
1507 } else if (link_option(option
, "oformat=", &p
)) {
1508 #if defined(TCC_TARGET_PE)
1509 if (strstart(p
, "pe-", NULL
)) {
1511 #if defined(TCC_TARGET_X86_64)
1512 if (strstart(p
, "elf64-", NULL
)) {
1514 if (strstart(p
, "elf32-", NULL
)) {
1517 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1518 } else if (!strcmp(p
, "binary")) {
1519 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1521 #ifdef TCC_TARGET_COFF
1522 if (!strcmp(p
, "coff")) {
1523 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1530 } else if (link_option(option
, "rpath=", &p
)) {
1532 } else if (link_option(option
, "section-alignment=", &p
)) {
1533 s
->section_align
= strtoul(p
, &end
, 16);
1534 } else if (link_option(option
, "soname=", &p
)) {
1537 #ifdef TCC_TARGET_PE
1538 } else if (link_option(option
, "file-alignment=", &p
)) {
1539 s
->pe_file_align
= strtoul(p
, &end
, 16);
1540 } else if (link_option(option
, "stack=", &p
)) {
1541 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1542 } else if (link_option(option
, "subsystem=", &p
)) {
1543 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1544 if (!strcmp(p
, "native")) {
1545 s
->pe_subsystem
= 1;
1546 } else if (!strcmp(p
, "console")) {
1547 s
->pe_subsystem
= 3;
1548 } else if (!strcmp(p
, "gui")) {
1549 s
->pe_subsystem
= 2;
1550 } else if (!strcmp(p
, "posix")) {
1551 s
->pe_subsystem
= 7;
1552 } else if (!strcmp(p
, "efiapp")) {
1553 s
->pe_subsystem
= 10;
1554 } else if (!strcmp(p
, "efiboot")) {
1555 s
->pe_subsystem
= 11;
1556 } else if (!strcmp(p
, "efiruntime")) {
1557 s
->pe_subsystem
= 12;
1558 } else if (!strcmp(p
, "efirom")) {
1559 s
->pe_subsystem
= 13;
1560 #elif defined(TCC_TARGET_ARM)
1561 if (!strcmp(p
, "wince")) {
1562 s
->pe_subsystem
= 9;
1569 } else if (link_option(option
, "Ttext=", &p
)) {
1570 s
->text_addr
= strtoull(p
, &end
, 16);
1571 s
->has_text_addr
= 1;
1573 char *comma_ptr
= strchr(option
, ',');
1581 p
= strchr( (end
) ? end
: p
, ',');
1583 *p
= 0; /* terminate last option */
1592 /* set CONFIG_TCCDIR at runtime */
1593 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1595 tcc_free(s
->tcc_lib_path
);
1596 s
->tcc_lib_path
= tcc_strdup(path
);
1599 PUB_FUNC
char *tcc_default_target(TCCState
*s
, const char *default_file
)
1603 const char *name
= "a";
1605 if (default_file
&& strcmp(default_file
, "-"))
1606 name
= tcc_basename(default_file
);
1607 pstrcpy(buf
, sizeof(buf
), name
);
1608 ext
= tcc_fileextension(buf
);
1609 #ifdef TCC_TARGET_PE
1610 if (s
->output_type
== TCC_OUTPUT_DLL
)
1611 strcpy(ext
, ".dll");
1613 if (s
->output_type
== TCC_OUTPUT_EXE
)
1614 strcpy(ext
, ".exe");
1617 if (( (s
->output_type
== TCC_OUTPUT_OBJ
&& !s
->reloc_output
) ||
1618 (s
->output_type
== TCC_OUTPUT_PREPROCESS
) )
1622 strcpy(buf
, "a.out");
1624 return tcc_strdup(buf
);
1628 PUB_FUNC
void tcc_gen_makedeps(TCCState
*s
, const char *target
, const char *filename
)
1631 char buf
[1024], *ext
;
1635 /* compute filename automatically
1636 * dir/file.o -> dir/file.d */
1637 pstrcpy(buf
, sizeof(buf
), target
);
1638 ext
= tcc_fileextension(buf
);
1639 pstrcpy(ext
, sizeof(buf
) - (ext
-buf
), ".d");
1644 printf("<- %s\n", filename
);
1646 /* XXX return err codes instead of error() ? */
1647 depout
= fopen(filename
, "w");
1649 tcc_error("could not open '%s'", filename
);
1651 fprintf(depout
, "%s : \\\n", target
);
1652 for (i
=0; i
<s
->nb_target_deps
; ++i
)
1653 fprintf(depout
, " %s \\\n", s
->target_deps
[i
]);
1654 fprintf(depout
, "\n");
1658 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
1661 tt
= (double)total_time
/ 1000000.0;
1664 if (total_bytes
< 1)
1666 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1667 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
1668 tt
, (int)(total_lines
/ tt
),
1669 total_bytes
/ tt
/ 1000000.0);
1672 static void print_paths(const char *msg
, char **paths
, int nb_paths
)
1675 printf("%s:\n%s", msg
, nb_paths
? "" : " -\n");
1676 for(i
= 0; i
< nb_paths
; i
++)
1677 printf(" %s\n", paths
[i
]);
1680 PUB_FUNC
void tcc_display_info(TCCState
*s
, int what
)
1684 printf("tcc version %s ("
1685 #ifdef TCC_TARGET_I386
1687 # ifdef TCC_TARGET_PE
1690 #elif defined TCC_TARGET_X86_64
1692 # ifdef TCC_TARGET_PE
1695 #elif defined TCC_TARGET_ARM
1697 # ifdef TCC_ARM_HARDFLOAT
1700 # ifdef TCC_TARGET_PE
1704 #ifndef TCC_TARGET_PE
1709 ")\n", TCC_VERSION
);
1712 printf("install: %s/\n", s
->tcc_lib_path
);
1713 /* print_paths("programs", NULL, 0); */
1714 print_paths("crt", s
->crt_paths
, s
->nb_crt_paths
);
1715 print_paths("libraries", s
->library_paths
, s
->nb_library_paths
);
1716 print_paths("include", s
->sysinclude_paths
, s
->nb_sysinclude_paths
);