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
);
108 static void tcc_add_systemdir(TCCState
*s
)
111 GetSystemDirectory(buf
, sizeof buf
);
112 tcc_add_library_path(s
, normalize_slashes(buf
));
115 #ifndef CONFIG_TCC_STATIC
116 void dlclose(void *p
)
118 FreeLibrary((HMODULE
)p
);
123 BOOL WINAPI
DllMain (HANDLE hDll
, DWORD dwReason
, LPVOID lpReserved
)
125 if (DLL_PROCESS_ATTACH
== dwReason
)
132 /********************************************************/
133 /* copy a string and truncate it. */
134 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
141 q_end
= buf
+ buf_size
- 1;
153 /* strcat and truncate. */
154 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
159 pstrcpy(buf
+ len
, buf_size
- len
, s
);
163 PUB_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
)
165 memcpy(out
, in
, num
);
170 /* extract the basename of a file */
171 PUB_FUNC
char *tcc_basename(const char *name
)
173 char *p
= strchr(name
, 0);
174 while (p
> name
&& !IS_DIRSEP(p
[-1]))
179 /* extract extension part of a file
181 * (if no extension, return pointer to end-of-string)
183 PUB_FUNC
char *tcc_fileextension (const char *name
)
185 char *b
= tcc_basename(name
);
186 char *e
= strrchr(b
, '.');
187 return e
? e
: strchr(b
, 0);
190 /********************************************************/
191 /* memory management */
200 unsigned malloc_usable_size(void*);
203 PUB_FUNC
void tcc_free(void *ptr
)
206 mem_cur_size
-= malloc_usable_size(ptr
);
211 PUB_FUNC
void *tcc_malloc(unsigned long size
)
216 tcc_error("memory full");
218 mem_cur_size
+= malloc_usable_size(ptr
);
219 if (mem_cur_size
> mem_max_size
)
220 mem_max_size
= mem_cur_size
;
225 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
228 ptr
= tcc_malloc(size
);
229 memset(ptr
, 0, size
);
233 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
237 mem_cur_size
-= malloc_usable_size(ptr
);
239 ptr1
= realloc(ptr
, size
);
241 tcc_error("memory full");
243 /* NOTE: count not correct if alloc error, but not critical */
244 mem_cur_size
+= malloc_usable_size(ptr1
);
245 if (mem_cur_size
> mem_max_size
)
246 mem_max_size
= mem_cur_size
;
251 PUB_FUNC
char *tcc_strdup(const char *str
)
254 ptr
= tcc_malloc(strlen(str
) + 1);
259 PUB_FUNC
void tcc_memstats(void)
262 printf("memory in use: %d\n", mem_cur_size
);
266 #define free(p) use_tcc_free(p)
267 #define malloc(s) use_tcc_malloc(s)
268 #define realloc(p, s) use_tcc_realloc(p, s)
270 /********************************************************/
273 PUB_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
280 /* every power of two we double array size */
281 if ((nb
& (nb
- 1)) == 0) {
286 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
293 PUB_FUNC
void dynarray_reset(void *pp
, int *n
)
296 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
299 tcc_free(*(void**)pp
);
303 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
311 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
312 if (c
== '{' && p
[1] && p
[2] == '}') {
315 cstr_cat(&str
, s
->tcc_lib_path
);
320 cstr_ccat(&str
, '\0');
321 dynarray_add(p_ary
, p_nb_ary
, str
.data
);
326 /********************************************************/
328 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
332 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
333 strcpy(sec
->name
, name
);
334 sec
->sh_type
= sh_type
;
335 sec
->sh_flags
= sh_flags
;
343 sec
->sh_addralign
= 4;
346 sec
->sh_addralign
= 1;
349 sec
->sh_addralign
= 32; /* default conservative alignment */
353 if (sh_flags
& SHF_PRIVATE
) {
354 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
356 sec
->sh_num
= s1
->nb_sections
;
357 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
363 static void free_section(Section
*s
)
368 /* realloc section and set its content to zero */
369 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
374 size
= sec
->data_allocated
;
377 while (size
< new_size
)
379 data
= tcc_realloc(sec
->data
, size
);
380 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
382 sec
->data_allocated
= size
;
385 /* reserve at least 'size' bytes in section 'sec' from
387 ST_FUNC
void *section_ptr_add(Section
*sec
, unsigned long size
)
389 unsigned long offset
, offset1
;
391 offset
= sec
->data_offset
;
392 offset1
= offset
+ size
;
393 if (offset1
> sec
->data_allocated
)
394 section_realloc(sec
, offset1
);
395 sec
->data_offset
= offset1
;
396 return sec
->data
+ offset
;
399 /* reserve at least 'size' bytes from section start */
400 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
402 if (size
> sec
->data_allocated
)
403 section_realloc(sec
, size
);
404 if (size
> sec
->data_offset
)
405 sec
->data_offset
= size
;
408 /* return a reference to a section, and create it if it does not
410 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
414 for(i
= 1; i
< s1
->nb_sections
; i
++) {
415 sec
= s1
->sections
[i
];
416 if (!strcmp(name
, sec
->name
))
419 /* sections are created as PROGBITS */
420 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
423 /* update sym->c so that it points to an external symbol in section
424 'section' with value 'value' */
425 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
426 uplong value
, unsigned long size
,
427 int can_add_underscore
)
429 int sym_type
, sym_bind
, sh_num
, info
, other
;
436 else if (section
== SECTION_ABS
)
439 sh_num
= section
->sh_num
;
441 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
443 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
444 sym_type
= STT_NOTYPE
;
446 sym_type
= STT_OBJECT
;
449 if (sym
->type
.t
& VT_STATIC
)
450 sym_bind
= STB_LOCAL
;
452 if (sym
->type
.t
& VT_WEAK
)
455 sym_bind
= STB_GLOBAL
;
459 name
= get_tok_str(sym
->v
, NULL
);
460 #ifdef CONFIG_TCC_BCHECK
461 if (tcc_state
->do_bounds_check
) {
464 /* XXX: avoid doing that for statics ? */
465 /* if bound checking is activated, we change some function
466 names by adding the "__bound" prefix */
469 /* XXX: we rely only on malloc hooks */
482 strcpy(buf
, "__bound_");
492 if (sym
->type
.t
& VT_EXPORT
)
494 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
495 int attr
= sym
->type
.ref
->r
;
496 if (FUNC_EXPORT(attr
))
498 if (FUNC_CALL(attr
) == FUNC_STDCALL
&& can_add_underscore
) {
499 sprintf(buf1
, "_%s@%d", name
, FUNC_ARGS(attr
) * PTR_SIZE
);
502 can_add_underscore
= 0;
505 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
507 if (sym
->type
.t
& VT_IMPORT
)
511 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
513 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
516 if (sym
->asm_label
) {
517 name
= sym
->asm_label
;
519 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
520 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
522 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
523 esym
->st_value
= value
;
524 esym
->st_size
= size
;
525 esym
->st_shndx
= sh_num
;
529 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
530 uplong value
, unsigned long size
)
532 put_extern_sym2(sym
, section
, value
, size
, 1);
535 /* add a new relocation entry to symbol 'sym' in section 's' */
536 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
541 put_extern_sym(sym
, NULL
, 0, 0);
544 /* now we can add ELF relocation info */
545 put_elf_reloc(symtab_section
, s
, offset
, type
, c
);
548 /********************************************************/
550 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
554 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
557 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
561 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
565 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
572 for(f
= s1
->include_stack
; f
< s1
->include_stack_ptr
; f
++)
573 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
574 (*f
)->filename
, (*f
)->line_num
);
575 if (file
->line_num
> 0) {
576 strcat_printf(buf
, sizeof(buf
),
577 "%s:%d: ", file
->filename
, file
->line_num
);
579 strcat_printf(buf
, sizeof(buf
),
580 "%s: ", file
->filename
);
583 strcat_printf(buf
, sizeof(buf
),
587 strcat_printf(buf
, sizeof(buf
), "warning: ");
589 strcat_printf(buf
, sizeof(buf
), "error: ");
590 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
592 if (!s1
->error_func
) {
593 /* default case: stderr */
594 fprintf(stderr
, "%s\n", buf
);
596 s1
->error_func(s1
->error_opaque
, buf
);
598 if (!is_warning
|| s1
->warn_error
)
602 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
603 void (*error_func
)(void *opaque
, const char *msg
))
605 s
->error_opaque
= error_opaque
;
606 s
->error_func
= error_func
;
609 /* error without aborting current compilation */
610 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
612 TCCState
*s1
= tcc_state
;
616 error1(s1
, 0, fmt
, ap
);
620 PUB_FUNC
void tcc_error(const char *fmt
, ...)
622 TCCState
*s1
= tcc_state
;
626 error1(s1
, 0, fmt
, ap
);
628 /* better than nothing: in some cases, we accept to handle errors */
629 if (s1
->error_set_jmp_enabled
) {
630 longjmp(s1
->error_jmp_buf
, 1);
632 /* XXX: eliminate this someday */
637 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
639 TCCState
*s1
= tcc_state
;
646 error1(s1
, 1, fmt
, ap
);
650 /********************************************************/
653 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
656 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
658 bf
= tcc_malloc(sizeof(BufferedFile
) + buflen
);
659 bf
->buf_ptr
= bf
->buffer
;
660 bf
->buf_end
= bf
->buffer
+ initlen
;
661 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
662 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
664 normalize_slashes(bf
->filename
);
667 bf
->ifndef_macro
= 0;
668 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
674 ST_FUNC
void tcc_close(void)
676 BufferedFile
*bf
= file
;
679 total_lines
+= bf
->line_num
;
685 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
688 if (strcmp(filename
, "-") == 0)
689 fd
= 0, filename
= "stdin";
691 fd
= open(filename
, O_RDONLY
| O_BINARY
);
692 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
693 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
694 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
698 tcc_open_bf(s1
, filename
, 0);
703 /* compile the C file opened in 'file'. Return non zero if errors. */
704 static int tcc_compile(TCCState
*s1
)
709 volatile int section_sym
;
712 printf("%s: **** new file\n", file
->filename
);
716 cur_text_section
= NULL
;
718 anon_sym
= SYM_FIRST_ANOM
;
720 /* file info: full path + filename */
721 section_sym
= 0; /* avoid warning */
723 section_sym
= put_elf_sym(symtab_section
, 0, 0,
724 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
725 text_section
->sh_num
, NULL
);
726 getcwd(buf
, sizeof(buf
));
728 normalize_slashes(buf
);
730 pstrcat(buf
, sizeof(buf
), "/");
731 put_stabs_r(buf
, N_SO
, 0, 0,
732 text_section
->data_offset
, text_section
, section_sym
);
733 put_stabs_r(file
->filename
, N_SO
, 0, 0,
734 text_section
->data_offset
, text_section
, section_sym
);
736 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
737 symbols can be safely used */
738 put_elf_sym(symtab_section
, 0, 0,
739 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
740 SHN_ABS
, file
->filename
);
742 /* define some often used types */
745 char_pointer_type
.t
= VT_BYTE
;
746 mk_pointer(&char_pointer_type
);
749 size_type
.t
= VT_INT
;
751 size_type
.t
= VT_LLONG
;
754 func_old_type
.t
= VT_FUNC
;
755 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
757 #if defined(TCC_ARM_EABI) && defined(TCC_ARM_VFP)
758 float_type
.t
= VT_FLOAT
;
759 double_type
.t
= VT_DOUBLE
;
761 func_float_type
.t
= VT_FUNC
;
762 func_float_type
.ref
= sym_push(SYM_FIELD
, &float_type
, FUNC_CDECL
, FUNC_OLD
);
763 func_double_type
.t
= VT_FUNC
;
764 func_double_type
.ref
= sym_push(SYM_FIELD
, &double_type
, FUNC_CDECL
, FUNC_OLD
);
768 /* define 'void *alloca(unsigned int)' builtin function */
773 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
774 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
777 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
781 define_start
= define_stack
;
784 if (setjmp(s1
->error_jmp_buf
) == 0) {
786 s1
->error_set_jmp_enabled
= 1;
788 ch
= file
->buf_ptr
[0];
789 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
790 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
;
795 expect("declaration");
797 tcc_warning("internal compiler error: vstack leak? (%d)", vtop
- pvtop
);
799 /* end of translation unit info */
801 put_stabs_r(NULL
, N_SO
, 0, 0,
802 text_section
->data_offset
, text_section
, section_sym
);
806 s1
->error_set_jmp_enabled
= 0;
808 /* reset define stack, but leave -Dsymbols (may be incorrect if
809 they are undefined) */
810 free_defines(define_start
);
812 gen_inline_functions();
814 sym_pop(&global_stack
, NULL
);
815 sym_pop(&local_stack
, NULL
);
817 return s1
->nb_errors
!= 0 ? -1 : 0;
820 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
825 tcc_open_bf(s
, "<string>", len
);
826 memcpy(file
->buffer
, str
, len
);
827 ret
= tcc_compile(s
);
832 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
833 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
840 len2
= strlen(value
);
842 /* init file structure */
843 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
844 memcpy(file
->buffer
, sym
, len1
);
845 file
->buffer
[len1
] = ' ';
846 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
848 /* parse with define parser */
849 ch
= file
->buf_ptr
[0];
856 /* undefine a preprocessor symbol */
857 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
861 ts
= tok_alloc(sym
, strlen(sym
));
862 s
= define_find(ts
->tok
);
863 /* undefine symbol by putting an invalid name */
868 static void tcc_cleanup(void)
872 if (NULL
== tcc_state
)
876 /* free -D defines */
880 n
= tok_ident
- TOK_IDENT
;
881 for(i
= 0; i
< n
; i
++)
882 tcc_free(table_ident
[i
]);
883 tcc_free(table_ident
);
886 dynarray_reset(&sym_pools
, &nb_sym_pools
);
889 /* reset symbol stack */
890 sym_free_first
= NULL
;
891 /* cleanup from error/setjmp */
895 LIBTCCAPI TCCState
*tcc_new(void)
903 s
= tcc_mallocz(sizeof(TCCState
));
908 tcc_set_lib_path_w32(s
);
910 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
912 s
->output_type
= TCC_OUTPUT_MEMORY
;
914 s
->include_stack_ptr
= s
->include_stack
;
916 /* we add dummy defines for some special macros to speed up tests
917 and to have working defined() */
918 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
919 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
920 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
921 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
923 /* standard defines */
924 tcc_define_symbol(s
, "__STDC__", NULL
);
925 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
926 #if defined(TCC_TARGET_I386)
927 tcc_define_symbol(s
, "__i386__", NULL
);
928 tcc_define_symbol(s
, "__i386", NULL
);
929 tcc_define_symbol(s
, "i386", NULL
);
931 #if defined(TCC_TARGET_X86_64)
932 tcc_define_symbol(s
, "__x86_64__", NULL
);
934 #if defined(TCC_TARGET_ARM)
935 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
936 tcc_define_symbol(s
, "__arm_elf__", NULL
);
937 tcc_define_symbol(s
, "__arm_elf", NULL
);
938 tcc_define_symbol(s
, "arm_elf", NULL
);
939 tcc_define_symbol(s
, "__arm__", NULL
);
940 tcc_define_symbol(s
, "__arm", NULL
);
941 tcc_define_symbol(s
, "arm", NULL
);
942 tcc_define_symbol(s
, "__APCS_32__", NULL
);
945 tcc_define_symbol(s
, "_WIN32", NULL
);
946 #ifdef TCC_TARGET_X86_64
947 tcc_define_symbol(s
, "_WIN64", NULL
);
950 tcc_define_symbol(s
, "__unix__", NULL
);
951 tcc_define_symbol(s
, "__unix", NULL
);
952 tcc_define_symbol(s
, "unix", NULL
);
953 #if defined(__FreeBSD__)
955 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
958 #if defined(__FreeBSD_kernel__)
959 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
962 tcc_define_symbol(s
, "__linux__", NULL
);
963 tcc_define_symbol(s
, "__linux", NULL
);
966 /* tiny C specific defines */
967 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
968 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
969 tcc_define_symbol(s
, "__TINYC__", buffer
);
971 /* tiny C & gcc defines */
972 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
973 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
974 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
976 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
977 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
981 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
983 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
987 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
988 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
990 #ifndef TCC_TARGET_PE
991 /* default library paths */
992 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
993 /* paths for crt objects */
994 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
997 /* no section zero */
998 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1000 /* create standard sections */
1001 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1002 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1003 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1005 /* symbols are always generated for linking stage */
1006 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1008 ".hashtab", SHF_PRIVATE
);
1009 strtab_section
= symtab_section
->link
;
1010 s
->symtab
= symtab_section
;
1012 /* private symbol table for dynamic symbols */
1013 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1015 ".dynhashtab", SHF_PRIVATE
);
1016 s
->alacarte_link
= 1;
1019 #ifdef CHAR_IS_UNSIGNED
1020 s
->char_is_unsigned
= 1;
1022 /* enable this if you want symbols with leading underscore on windows: */
1023 #if defined(TCC_TARGET_PE) && 0
1024 s
->leading_underscore
= 1;
1026 if (s
->section_align
== 0)
1027 s
->section_align
= ELF_PAGE_SIZE
;
1028 #ifdef TCC_TARGET_I386
1034 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1040 /* free all sections */
1041 for(i
= 1; i
< s1
->nb_sections
; i
++)
1042 free_section(s1
->sections
[i
]);
1043 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1045 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1046 free_section(s1
->priv_sections
[i
]);
1047 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1049 /* free any loaded DLLs */
1050 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1051 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1053 dlclose(ref
->handle
);
1056 /* free loaded dlls array */
1057 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1059 /* free library paths */
1060 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1061 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1063 /* free include paths */
1064 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1065 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1066 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1068 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1070 tcc_free(s1
->tcc_lib_path
);
1073 munmap (s1
->write_mem
, s1
->mem_size
);
1074 munmap (s1
->runtime_mem
, s1
->mem_size
);
1076 tcc_free(s1
->runtime_mem
);
1081 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1083 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1087 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1089 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1093 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1099 /* find source file type with extension */
1100 ext
= tcc_fileextension(filename
);
1104 #ifdef CONFIG_TCC_ASM
1105 /* if .S file, define __ASSEMBLER__ like gcc does */
1106 if (!strcmp(ext
, "S"))
1107 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1111 ret
= tcc_open(s1
, filename
);
1113 if (flags
& AFF_PRINT_ERROR
)
1114 tcc_error_noabort("file '%s' not found", filename
);
1118 /* update target deps */
1119 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1120 tcc_strdup(filename
));
1122 if (flags
& AFF_PREPROCESS
) {
1123 ret
= tcc_preprocess(s1
);
1127 if (!ext
[0] || !PATHCMP(ext
, "c")) {
1128 /* C file assumed */
1129 ret
= tcc_compile(s1
);
1133 #ifdef CONFIG_TCC_ASM
1134 if (!strcmp(ext
, "S")) {
1135 /* preprocessed assembler */
1136 ret
= tcc_assemble(s1
, 1);
1140 if (!strcmp(ext
, "s")) {
1141 /* non preprocessed assembler */
1142 ret
= tcc_assemble(s1
, 0);
1148 /* assume executable format: auto guess file type */
1149 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1150 lseek(fd
, 0, SEEK_SET
);
1152 tcc_error_noabort("could not read header");
1156 if (size
== sizeof(ehdr
) &&
1157 ehdr
.e_ident
[0] == ELFMAG0
&&
1158 ehdr
.e_ident
[1] == ELFMAG1
&&
1159 ehdr
.e_ident
[2] == ELFMAG2
&&
1160 ehdr
.e_ident
[3] == ELFMAG3
) {
1162 /* do not display line number if error */
1164 if (ehdr
.e_type
== ET_REL
) {
1165 ret
= tcc_load_object_file(s1
, fd
, 0);
1169 #ifndef TCC_TARGET_PE
1170 if (ehdr
.e_type
== ET_DYN
) {
1171 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1173 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1177 ret
= tcc_load_dll(s1
, fd
, filename
,
1178 (flags
& AFF_REFERENCED_DLL
) != 0);
1183 tcc_error_noabort("unrecognized ELF file");
1187 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1188 file
->line_num
= 0; /* do not display line number if error */
1189 ret
= tcc_load_archive(s1
, fd
);
1193 #ifdef TCC_TARGET_COFF
1194 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1195 ret
= tcc_load_coff(s1
, fd
);
1200 #ifdef TCC_TARGET_PE
1201 ret
= pe_load_file(s1
, filename
, fd
);
1203 /* as GNU ld, consider it is an ld script if not recognized */
1204 ret
= tcc_load_ldscript(s1
);
1207 tcc_error_noabort("unrecognized file type");
1214 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1216 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1217 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
);
1219 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
);
1222 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1224 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1228 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1229 const char *filename
, int flags
, char **paths
, int nb_paths
)
1234 for(i
= 0; i
< nb_paths
; i
++) {
1235 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1236 if (tcc_add_file_internal(s
, buf
, flags
) == 0)
1242 #ifndef TCC_TARGET_PE
1243 /* find and load a dll. Return non zero if not found */
1244 /* XXX: add '-rpath' option support ? */
1245 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1247 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1248 s
->library_paths
, s
->nb_library_paths
);
1252 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1254 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1255 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1256 tcc_error_noabort("file '%s' not found", filename
);
1260 /* the library name is the same as the argument of the '-l' option */
1261 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1263 #ifdef TCC_TARGET_PE
1264 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1265 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1267 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1268 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1271 if (0 == tcc_add_library_internal(s
, *pp
,
1272 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1279 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1281 #ifdef TCC_TARGET_PE
1282 pe_putimport(s
, 0, name
, val
);
1284 add_elf_sym(symtab_section
, (uplong
)val
, 0,
1285 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1291 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1293 s
->output_type
= output_type
;
1296 /* default include paths */
1297 /* -isystem paths have already been handled */
1298 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1301 /* if bound checking, then add corresponding sections */
1302 #ifdef CONFIG_TCC_BCHECK
1303 if (s
->do_bounds_check
) {
1305 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1306 /* create bounds sections */
1307 bounds_section
= new_section(s
, ".bounds",
1308 SHT_PROGBITS
, SHF_ALLOC
);
1309 lbounds_section
= new_section(s
, ".lbounds",
1310 SHT_PROGBITS
, SHF_ALLOC
);
1314 if (s
->char_is_unsigned
) {
1315 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1318 /* add debug sections */
1321 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1322 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1323 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1324 put_elf_str(stabstr_section
, "");
1325 stab_section
->link
= stabstr_section
;
1326 /* put first entry */
1327 put_stabs("", 0, 0, 0, 0);
1330 #ifdef TCC_TARGET_PE
1331 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1333 tcc_add_systemdir(s
);
1336 /* add libc crt1/crti objects */
1337 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1339 if (output_type
!= TCC_OUTPUT_DLL
)
1340 tcc_add_crt(s
, "crt1.o");
1341 tcc_add_crt(s
, "crti.o");
1347 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1348 #define FD_INVERT 0x0002 /* invert value before storing */
1350 typedef struct FlagDef
{
1356 static const FlagDef warning_defs
[] = {
1357 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1358 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1359 { offsetof(TCCState
, warn_error
), 0, "error" },
1360 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1361 "implicit-function-declaration" },
1364 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1365 const char *name
, int value
)
1372 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1376 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1377 if (!strcmp(r
, p
->name
))
1382 if (p
->flags
& FD_INVERT
)
1384 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1389 LIBTCCAPI
void tcc_enable_debug(TCCState
*s
)
1394 /* set/reset a warning */
1395 LIBTCCAPI
int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1400 if (!strcmp(warning_name
, "all")) {
1401 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1402 if (p
->flags
& WD_ALL
)
1403 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1407 return set_flag(s
, warning_defs
, countof(warning_defs
),
1408 warning_name
, value
);
1412 static const FlagDef flag_defs
[] = {
1413 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1414 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1415 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1416 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1419 /* set/reset a flag */
1420 PUB_FUNC
int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1422 return set_flag(s
, flag_defs
, countof(flag_defs
),
1427 static int strstart(const char *str
, const char *val
, char **ptr
)
1432 while (*q
!= '\0') {
1444 /* Like strstart, but automatically takes into account that ld options can
1446 * - start with double or single dash (e.g. '--soname' or '-soname')
1447 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1448 * or '-Wl,-soname=x.so')
1450 * you provide `val` always in 'option[=]' form (no leading -)
1452 static int link_option(const char *str
, const char *val
, char **ptr
)
1456 /* there should be 1 or 2 dashes */
1462 /* then str & val should match (potentialy up to '=') */
1466 while (*q
!= '\0' && *q
!= '=') {
1473 /* '=' near eos means ',' or '=' is ok */
1475 if (*p
!= ',' && *p
!= '=')
1487 /* set linker options */
1488 PUB_FUNC
const char * tcc_set_linker(TCCState
*s
, char *option
, int multi
)
1493 while (option
&& *option
) {
1495 if (link_option(option
, "Bsymbolic", &p
)) {
1497 } else if (link_option(option
, "nostdlib", &p
)) {
1499 } else if (link_option(option
, "fini=", &p
)) {
1501 if (s
->warn_unsupported
)
1502 tcc_warning("ignoring -fini %s", p
);
1503 } else if (link_option(option
, "image-base=", &p
)) {
1504 s
->text_addr
= strtoull(p
, &end
, 16);
1505 s
->has_text_addr
= 1;
1506 } else if (link_option(option
, "init=", &p
)) {
1508 if (s
->warn_unsupported
)
1509 tcc_warning("ignoring -init %s", p
);
1510 } else if (link_option(option
, "oformat=", &p
)) {
1511 #if defined(TCC_TARGET_PE)
1512 if (strstart(p
, "pe-", NULL
)) {
1514 #if defined(TCC_TARGET_X86_64)
1515 if (strstart(p
, "elf64-", NULL
)) {
1517 if (strstart(p
, "elf32-", NULL
)) {
1520 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1521 } else if (!strcmp(p
, "binary")) {
1522 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1524 #ifdef TCC_TARGET_COFF
1525 if (!strcmp(p
, "coff")) {
1526 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1533 } else if (link_option(option
, "rpath=", &p
)) {
1535 } else if (link_option(option
, "section-alignment=", &p
)) {
1536 s
->section_align
= strtoul(p
, &end
, 16);
1537 } else if (link_option(option
, "soname=", &p
)) {
1540 #ifdef TCC_TARGET_PE
1541 } else if (link_option(option
, "file-alignment=", &p
)) {
1542 s
->pe_file_align
= strtoul(p
, &end
, 16);
1543 } else if (link_option(option
, "stack=", &p
)) {
1544 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1545 } else if (link_option(option
, "subsystem=", &p
)) {
1546 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1547 if (!strcmp(p
, "native")) {
1548 s
->pe_subsystem
= 1;
1549 } else if (!strcmp(p
, "console")) {
1550 s
->pe_subsystem
= 3;
1551 } else if (!strcmp(p
, "gui")) {
1552 s
->pe_subsystem
= 2;
1553 } else if (!strcmp(p
, "posix")) {
1554 s
->pe_subsystem
= 7;
1555 } else if (!strcmp(p
, "efiapp")) {
1556 s
->pe_subsystem
= 10;
1557 } else if (!strcmp(p
, "efiboot")) {
1558 s
->pe_subsystem
= 11;
1559 } else if (!strcmp(p
, "efiruntime")) {
1560 s
->pe_subsystem
= 12;
1561 } else if (!strcmp(p
, "efirom")) {
1562 s
->pe_subsystem
= 13;
1563 #elif defined(TCC_TARGET_ARM)
1564 if (!strcmp(p
, "wince")) {
1565 s
->pe_subsystem
= 9;
1572 } else if (link_option(option
, "Ttext=", &p
)) {
1573 s
->text_addr
= strtoull(p
, &end
, 16);
1574 s
->has_text_addr
= 1;
1576 char *comma_ptr
= strchr(option
, ',');
1584 p
= strchr( (end
) ? end
: p
, ',');
1586 *p
= 0; /* terminate last option */
1595 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
1598 tt
= (double)total_time
/ 1000000.0;
1601 if (total_bytes
< 1)
1603 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1604 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
1605 tt
, (int)(total_lines
/ tt
),
1606 total_bytes
/ tt
/ 1000000.0);
1609 /* set CONFIG_TCCDIR at runtime */
1610 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1612 tcc_free(s
->tcc_lib_path
);
1613 s
->tcc_lib_path
= tcc_strdup(path
);
1616 PUB_FUNC
char *tcc_default_target(TCCState
*s
, const char *default_file
)
1620 const char *name
= "a";
1622 if (default_file
&& strcmp(default_file
, "-"))
1623 name
= tcc_basename(default_file
);
1624 pstrcpy(buf
, sizeof(buf
), name
);
1625 ext
= tcc_fileextension(buf
);
1626 #ifdef TCC_TARGET_PE
1627 if (s
->output_type
== TCC_OUTPUT_DLL
)
1628 strcpy(ext
, ".dll");
1630 if (s
->output_type
== TCC_OUTPUT_EXE
)
1631 strcpy(ext
, ".exe");
1634 if (( (s
->output_type
== TCC_OUTPUT_OBJ
&& !s
->reloc_output
) ||
1635 (s
->output_type
== TCC_OUTPUT_PREPROCESS
) )
1639 pstrcpy(buf
, sizeof(buf
), "a.out");
1641 return tcc_strdup(buf
);
1645 PUB_FUNC
void tcc_gen_makedeps(TCCState
*s
, const char *target
, const char *filename
)
1648 char buf
[1024], *ext
;
1652 /* compute filename automatically
1653 * dir/file.o -> dir/file.d */
1654 pstrcpy(buf
, sizeof(buf
), target
);
1655 ext
= tcc_fileextension(buf
);
1656 pstrcpy(ext
, sizeof(buf
) - (ext
-buf
), ".d");
1661 printf("<- %s\n", filename
);
1663 /* XXX return err codes instead of error() ? */
1664 depout
= fopen(filename
, "w");
1666 tcc_error("could not open '%s'", filename
);
1668 fprintf(depout
, "%s : \\\n", target
);
1669 for (i
=0; i
<s
->nb_target_deps
; ++i
)
1670 fprintf(depout
, "\t%s \\\n", s
->target_deps
[i
]);
1671 fprintf(depout
, "\n");