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 /********************************************************/
82 static char *normalize_slashes(char *path
)
85 for (p
= path
; *p
; ++p
)
91 static HMODULE tcc_module
;
93 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
94 static void tcc_set_lib_path_w32(TCCState
*s
)
97 GetModuleFileNameA(tcc_module
, path
, sizeof path
);
98 p
= tcc_basename(normalize_slashes(strlwr(path
)));
99 if (p
- 5 > path
&& 0 == strncmp(p
- 5, "/bin/", 5))
104 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
));
116 #ifndef CONFIG_TCC_STATIC
117 void dlclose(void *p
)
119 FreeLibrary((HMODULE
)p
);
124 BOOL WINAPI
DllMain (HANDLE hDll
, DWORD dwReason
, LPVOID lpReserved
)
126 if (DLL_PROCESS_ATTACH
== dwReason
)
133 /********************************************************/
134 /* copy a string and truncate it. */
135 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
142 q_end
= buf
+ buf_size
- 1;
154 /* strcat and truncate. */
155 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
160 pstrcpy(buf
+ len
, buf_size
- len
, s
);
164 PUB_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
)
166 memcpy(out
, in
, num
);
171 /* extract the basename of a file */
172 PUB_FUNC
char *tcc_basename(const char *name
)
174 char *p
= strchr(name
, 0);
175 while (p
> name
&& !IS_DIRSEP(p
[-1]))
180 /* extract extension part of a file
182 * (if no extension, return pointer to end-of-string)
184 PUB_FUNC
char *tcc_fileextension (const char *name
)
186 char *b
= tcc_basename(name
);
187 char *e
= strrchr(b
, '.');
188 return e
? e
: strchr(b
, 0);
191 /********************************************************/
192 /* memory management */
199 ST_DATA
int mem_cur_size
;
200 ST_DATA
int mem_max_size
;
201 unsigned malloc_usable_size(void*);
204 PUB_FUNC
void tcc_free(void *ptr
)
207 mem_cur_size
-= malloc_usable_size(ptr
);
212 PUB_FUNC
void *tcc_malloc(unsigned long size
)
217 tcc_error("memory full (malloc)");
219 mem_cur_size
+= malloc_usable_size(ptr
);
220 if (mem_cur_size
> mem_max_size
)
221 mem_max_size
= mem_cur_size
;
226 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
229 ptr
= tcc_malloc(size
);
230 memset(ptr
, 0, size
);
234 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
238 mem_cur_size
-= malloc_usable_size(ptr
);
240 ptr1
= realloc(ptr
, size
);
242 tcc_error("memory full (realloc)");
244 /* NOTE: count not correct if alloc error, but not critical */
245 mem_cur_size
+= malloc_usable_size(ptr1
);
246 if (mem_cur_size
> mem_max_size
)
247 mem_max_size
= mem_cur_size
;
252 PUB_FUNC
char *tcc_strdup(const char *str
)
255 ptr
= tcc_malloc(strlen(str
) + 1);
260 PUB_FUNC
void tcc_memstats(void)
263 printf("memory: %d bytes, max = %d bytes\n", mem_cur_size
, mem_max_size
);
267 #define free(p) use_tcc_free(p)
268 #define malloc(s) use_tcc_malloc(s)
269 #define realloc(p, s) use_tcc_realloc(p, s)
271 /********************************************************/
274 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
281 /* every power of two we double array size */
282 if ((nb
& (nb
- 1)) == 0) {
287 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
294 ST_FUNC
void dynarray_reset(void *pp
, int *n
)
297 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
300 tcc_free(*(void**)pp
);
304 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
312 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
313 if (c
== '{' && p
[1] && p
[2] == '}') {
316 cstr_cat(&str
, s
->tcc_lib_path
);
321 cstr_ccat(&str
, '\0');
322 dynarray_add(p_ary
, p_nb_ary
, str
.data
);
327 /********************************************************/
329 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
333 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
334 strcpy(sec
->name
, name
);
335 sec
->sh_type
= sh_type
;
336 sec
->sh_flags
= sh_flags
;
344 sec
->sh_addralign
= 4;
347 sec
->sh_addralign
= 1;
350 sec
->sh_addralign
= 32; /* default conservative alignment */
354 if (sh_flags
& SHF_PRIVATE
) {
355 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
357 sec
->sh_num
= s1
->nb_sections
;
358 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
364 static void free_section(Section
*s
)
369 /* realloc section and set its content to zero */
370 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
375 size
= sec
->data_allocated
;
378 while (size
< new_size
)
380 data
= tcc_realloc(sec
->data
, size
);
381 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
383 sec
->data_allocated
= size
;
386 /* reserve at least 'size' bytes in section 'sec' from
388 ST_FUNC
void *section_ptr_add(Section
*sec
, unsigned long size
)
390 unsigned long offset
, offset1
;
392 offset
= sec
->data_offset
;
393 offset1
= offset
+ size
;
394 if (offset1
> sec
->data_allocated
)
395 section_realloc(sec
, offset1
);
396 sec
->data_offset
= offset1
;
397 return sec
->data
+ offset
;
400 /* reserve at least 'size' bytes from section start */
401 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
403 if (size
> sec
->data_allocated
)
404 section_realloc(sec
, size
);
405 if (size
> sec
->data_offset
)
406 sec
->data_offset
= size
;
409 /* return a reference to a section, and create it if it does not
411 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
415 for(i
= 1; i
< s1
->nb_sections
; i
++) {
416 sec
= s1
->sections
[i
];
417 if (!strcmp(name
, sec
->name
))
420 /* sections are created as PROGBITS */
421 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
424 /* update sym->c so that it points to an external symbol in section
425 'section' with value 'value' */
426 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
427 addr_t value
, unsigned long size
,
428 int can_add_underscore
)
430 int sym_type
, sym_bind
, sh_num
, info
, other
;
437 else if (section
== SECTION_ABS
)
440 sh_num
= section
->sh_num
;
442 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
444 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
445 sym_type
= STT_NOTYPE
;
447 sym_type
= STT_OBJECT
;
450 if (sym
->type
.t
& VT_STATIC
)
451 sym_bind
= STB_LOCAL
;
453 if (sym
->type
.t
& VT_WEAK
)
456 sym_bind
= STB_GLOBAL
;
460 name
= get_tok_str(sym
->v
, NULL
);
461 #ifdef CONFIG_TCC_BCHECK
462 if (tcc_state
->do_bounds_check
) {
465 /* XXX: avoid doing that for statics ? */
466 /* if bound checking is activated, we change some function
467 names by adding the "__bound" prefix */
470 /* XXX: we rely only on malloc hooks */
483 strcpy(buf
, "__bound_");
493 if (sym
->type
.t
& VT_EXPORT
)
495 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
496 Sym
*ref
= sym
->type
.ref
;
497 if (ref
->a
.func_export
)
499 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
500 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
503 can_add_underscore
= 0;
506 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
508 if (sym
->type
.t
& VT_IMPORT
)
512 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
514 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
517 if (sym
->asm_label
) {
518 name
= sym
->asm_label
;
520 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
521 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
523 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
524 esym
->st_value
= value
;
525 esym
->st_size
= size
;
526 esym
->st_shndx
= sh_num
;
530 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
531 addr_t value
, unsigned long size
)
533 put_extern_sym2(sym
, section
, value
, size
, 1);
536 /* add a new relocation entry to symbol 'sym' in section 's' */
537 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
542 put_extern_sym(sym
, NULL
, 0, 0);
545 /* now we can add ELF relocation info */
546 put_elf_reloc(symtab_section
, s
, offset
, type
, c
);
549 /********************************************************/
551 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
555 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
558 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
562 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
566 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
569 BufferedFile
**pf
, *f
;
572 /* use upper file if inline ":asm:" or token ":paste:" */
573 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
576 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
577 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
578 (*pf
)->filename
, (*pf
)->line_num
);
579 if (f
->line_num
> 0) {
580 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
581 f
->filename
, f
->line_num
);
583 strcat_printf(buf
, sizeof(buf
), "%s: ",
587 strcat_printf(buf
, sizeof(buf
), "tcc: ");
590 strcat_printf(buf
, sizeof(buf
), "warning: ");
592 strcat_printf(buf
, sizeof(buf
), "error: ");
593 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
595 if (!s1
->error_func
) {
596 /* default case: stderr */
597 fprintf(stderr
, "%s\n", buf
);
599 s1
->error_func(s1
->error_opaque
, buf
);
601 if (!is_warning
|| s1
->warn_error
)
605 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
606 void (*error_func
)(void *opaque
, const char *msg
))
608 s
->error_opaque
= error_opaque
;
609 s
->error_func
= error_func
;
612 /* error without aborting current compilation */
613 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
615 TCCState
*s1
= tcc_state
;
619 error1(s1
, 0, fmt
, ap
);
623 PUB_FUNC
void tcc_error(const char *fmt
, ...)
625 TCCState
*s1
= tcc_state
;
629 error1(s1
, 0, fmt
, ap
);
631 /* better than nothing: in some cases, we accept to handle errors */
632 if (s1
->error_set_jmp_enabled
) {
633 longjmp(s1
->error_jmp_buf
, 1);
635 /* XXX: eliminate this someday */
640 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
642 TCCState
*s1
= tcc_state
;
649 error1(s1
, 1, fmt
, ap
);
653 /********************************************************/
656 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
659 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
661 bf
= tcc_malloc(sizeof(BufferedFile
) + buflen
);
662 bf
->buf_ptr
= bf
->buffer
;
663 bf
->buf_end
= bf
->buffer
+ initlen
;
664 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
665 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
667 normalize_slashes(bf
->filename
);
670 bf
->ifndef_macro
= 0;
671 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
677 ST_FUNC
void tcc_close(void)
679 BufferedFile
*bf
= file
;
682 total_lines
+= bf
->line_num
;
688 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
691 if (strcmp(filename
, "-") == 0)
692 fd
= 0, filename
= "stdin";
694 fd
= open(filename
, O_RDONLY
| O_BINARY
);
695 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
696 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
697 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
701 tcc_open_bf(s1
, filename
, 0);
706 /* compile the C file opened in 'file'. Return non zero if errors. */
707 static int tcc_compile(TCCState
*s1
)
712 volatile int section_sym
;
715 printf("%s: **** new file\n", file
->filename
);
719 cur_text_section
= NULL
;
721 anon_sym
= SYM_FIRST_ANOM
;
723 /* file info: full path + filename */
724 section_sym
= 0; /* avoid warning */
726 section_sym
= put_elf_sym(symtab_section
, 0, 0,
727 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
728 text_section
->sh_num
, NULL
);
729 getcwd(buf
, sizeof(buf
));
731 normalize_slashes(buf
);
733 pstrcat(buf
, sizeof(buf
), "/");
734 put_stabs_r(buf
, N_SO
, 0, 0,
735 text_section
->data_offset
, text_section
, section_sym
);
736 put_stabs_r(file
->filename
, N_SO
, 0, 0,
737 text_section
->data_offset
, text_section
, section_sym
);
739 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
740 symbols can be safely used */
741 put_elf_sym(symtab_section
, 0, 0,
742 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
743 SHN_ABS
, file
->filename
);
745 /* define some often used types */
748 char_pointer_type
.t
= VT_BYTE
;
749 mk_pointer(&char_pointer_type
);
752 size_type
.t
= VT_INT
;
754 size_type
.t
= VT_LLONG
;
757 func_old_type
.t
= VT_FUNC
;
758 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
759 #ifdef TCC_TARGET_ARM
764 /* define 'void *alloca(unsigned int)' builtin function */
769 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
770 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
773 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
777 define_start
= define_stack
;
780 if (setjmp(s1
->error_jmp_buf
) == 0) {
782 s1
->error_set_jmp_enabled
= 1;
784 ch
= file
->buf_ptr
[0];
785 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
786 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
;
791 expect("declaration");
793 tcc_warning("internal compiler error: vstack leak? (%d)", vtop
- pvtop
);
795 /* end of translation unit info */
797 put_stabs_r(NULL
, N_SO
, 0, 0,
798 text_section
->data_offset
, text_section
, section_sym
);
802 s1
->error_set_jmp_enabled
= 0;
804 /* reset define stack, but leave -Dsymbols (may be incorrect if
805 they are undefined) */
806 free_defines(define_start
);
808 gen_inline_functions();
810 sym_pop(&global_stack
, NULL
);
811 sym_pop(&local_stack
, NULL
);
813 return s1
->nb_errors
!= 0 ? -1 : 0;
816 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
821 tcc_open_bf(s
, "<string>", len
);
822 memcpy(file
->buffer
, str
, len
);
823 ret
= tcc_compile(s
);
828 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
829 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
836 len2
= strlen(value
);
838 /* init file structure */
839 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
840 memcpy(file
->buffer
, sym
, len1
);
841 file
->buffer
[len1
] = ' ';
842 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
844 /* parse with define parser */
845 ch
= file
->buf_ptr
[0];
852 /* undefine a preprocessor symbol */
853 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
857 ts
= tok_alloc(sym
, strlen(sym
));
858 s
= define_find(ts
->tok
);
859 /* undefine symbol by putting an invalid name */
864 /* cleanup all static data used during compilation */
865 static void tcc_cleanup(void)
868 if (NULL
== tcc_state
)
872 /* free -D defines */
876 n
= tok_ident
- TOK_IDENT
;
877 for(i
= 0; i
< n
; i
++)
878 tcc_free(table_ident
[i
]);
879 tcc_free(table_ident
);
882 dynarray_reset(&sym_pools
, &nb_sym_pools
);
885 /* reset symbol stack */
886 sym_free_first
= NULL
;
887 /* cleanup from error/setjmp */
891 LIBTCCAPI TCCState
*tcc_new(void)
899 s
= tcc_mallocz(sizeof(TCCState
));
904 tcc_set_lib_path_w32(s
);
906 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
908 s
->output_type
= TCC_OUTPUT_MEMORY
;
910 s
->include_stack_ptr
= s
->include_stack
;
912 /* we add dummy defines for some special macros to speed up tests
913 and to have working defined() */
914 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
915 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
916 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
917 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
919 /* define __TINYC__ 92X */
920 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
921 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
922 tcc_define_symbol(s
, "__TINYC__", buffer
);
924 /* standard defines */
925 tcc_define_symbol(s
, "__STDC__", NULL
);
926 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
927 tcc_define_symbol(s
, "__STDC_HOSTED__", NULL
);
930 #if defined(TCC_TARGET_I386)
931 tcc_define_symbol(s
, "__i386__", NULL
);
932 tcc_define_symbol(s
, "__i386", NULL
);
933 tcc_define_symbol(s
, "i386", NULL
);
934 #elif defined(TCC_TARGET_X86_64)
935 tcc_define_symbol(s
, "__x86_64__", NULL
);
936 #elif defined(TCC_TARGET_ARM)
937 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
938 tcc_define_symbol(s
, "__arm_elf__", NULL
);
939 tcc_define_symbol(s
, "__arm_elf", NULL
);
940 tcc_define_symbol(s
, "arm_elf", NULL
);
941 tcc_define_symbol(s
, "__arm__", NULL
);
942 tcc_define_symbol(s
, "__arm", NULL
);
943 tcc_define_symbol(s
, "arm", NULL
);
944 tcc_define_symbol(s
, "__APCS_32__", NULL
);
945 tcc_define_symbol(s
, "__ARMEL__", NULL
);
946 #if defined(TCC_ARM_EABI)
947 tcc_define_symbol(s
, "__ARM_EABI__", NULL
);
949 #if defined(TCC_ARM_HARDFLOAT)
950 s
->float_abi
= ARM_HARD_FLOAT
;
951 tcc_define_symbol(s
, "__ARM_PCS_VFP", NULL
);
953 s
->float_abi
= ARM_SOFTFP_FLOAT
;
958 tcc_define_symbol(s
, "_WIN32", NULL
);
959 # ifdef TCC_TARGET_X86_64
960 tcc_define_symbol(s
, "_WIN64", NULL
);
963 tcc_define_symbol(s
, "__unix__", NULL
);
964 tcc_define_symbol(s
, "__unix", NULL
);
965 tcc_define_symbol(s
, "unix", NULL
);
966 # if defined(__linux)
967 tcc_define_symbol(s
, "__linux__", NULL
);
968 tcc_define_symbol(s
, "__linux", NULL
);
970 # if defined(__FreeBSD__)
972 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
975 # if defined(__FreeBSD_kernel__)
976 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
980 /* TinyCC & gcc defines */
981 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
982 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
983 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
985 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
986 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
990 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
991 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
993 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
994 /* wint_t is unsigned int by default, but (signed) int on BSDs
995 and unsigned short on windows. Other OSes might have still
996 other conventions, sigh. */
997 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__)
998 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1000 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1004 #ifndef TCC_TARGET_PE
1006 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1007 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1008 /* paths for crt objects */
1009 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1012 /* no section zero */
1013 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1015 /* create standard sections */
1016 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1017 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1018 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1020 /* symbols are always generated for linking stage */
1021 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1023 ".hashtab", SHF_PRIVATE
);
1024 strtab_section
= symtab_section
->link
;
1025 s
->symtab
= symtab_section
;
1027 /* private symbol table for dynamic symbols */
1028 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1030 ".dynhashtab", SHF_PRIVATE
);
1031 s
->alacarte_link
= 1;
1033 s
->section_align
= ELF_PAGE_SIZE
;
1035 #ifdef CHAR_IS_UNSIGNED
1036 s
->char_is_unsigned
= 1;
1038 /* enable this if you want symbols with leading underscore on windows: */
1039 #if 0 /* def TCC_TARGET_PE */
1040 s
->leading_underscore
= 1;
1042 #ifdef TCC_TARGET_I386
1045 #ifdef TCC_IS_NATIVE
1046 s
->runtime_main
= "main";
1051 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1057 /* free all sections */
1058 for(i
= 1; i
< s1
->nb_sections
; i
++)
1059 free_section(s1
->sections
[i
]);
1060 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1062 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1063 free_section(s1
->priv_sections
[i
]);
1064 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1066 /* free any loaded DLLs */
1067 #ifdef TCC_IS_NATIVE
1068 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1069 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1071 dlclose(ref
->handle
);
1075 /* free loaded dlls array */
1076 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1078 /* free library paths */
1079 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1080 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1082 /* free include paths */
1083 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1084 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1085 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1087 tcc_free(s1
->tcc_lib_path
);
1088 tcc_free(s1
->soname
);
1089 tcc_free(s1
->rpath
);
1090 tcc_free(s1
->init_symbol
);
1091 tcc_free(s1
->fini_symbol
);
1092 tcc_free(s1
->outfile
);
1093 tcc_free(s1
->deps_outfile
);
1094 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1095 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1097 #ifdef TCC_IS_NATIVE
1098 # ifdef HAVE_SELINUX
1099 munmap (s1
->write_mem
, s1
->mem_size
);
1100 munmap (s1
->runtime_mem
, s1
->mem_size
);
1102 tcc_free(s1
->runtime_mem
);
1106 if(s1
->sym_attrs
) tcc_free(s1
->sym_attrs
);
1111 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1113 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1117 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1119 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1123 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1129 /* find source file type with extension */
1130 ext
= tcc_fileextension(filename
);
1134 #ifdef CONFIG_TCC_ASM
1135 /* if .S file, define __ASSEMBLER__ like gcc does */
1136 if (!strcmp(ext
, "S"))
1137 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1141 ret
= tcc_open(s1
, filename
);
1143 if (flags
& AFF_PRINT_ERROR
)
1144 tcc_error_noabort("file '%s' not found", filename
);
1148 /* update target deps */
1149 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1150 tcc_strdup(filename
));
1152 if (flags
& AFF_PREPROCESS
) {
1153 ret
= tcc_preprocess(s1
);
1157 if (!ext
[0] || !PATHCMP(ext
, "c")) {
1158 /* C file assumed */
1159 ret
= tcc_compile(s1
);
1163 #ifdef CONFIG_TCC_ASM
1164 if (!strcmp(ext
, "S")) {
1165 /* preprocessed assembler */
1166 ret
= tcc_assemble(s1
, 1);
1170 if (!strcmp(ext
, "s")) {
1171 /* non preprocessed assembler */
1172 ret
= tcc_assemble(s1
, 0);
1178 /* assume executable format: auto guess file type */
1179 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1180 lseek(fd
, 0, SEEK_SET
);
1182 tcc_error_noabort("could not read header");
1186 if (size
== sizeof(ehdr
) &&
1187 ehdr
.e_ident
[0] == ELFMAG0
&&
1188 ehdr
.e_ident
[1] == ELFMAG1
&&
1189 ehdr
.e_ident
[2] == ELFMAG2
&&
1190 ehdr
.e_ident
[3] == ELFMAG3
) {
1192 /* do not display line number if error */
1194 if (ehdr
.e_type
== ET_REL
) {
1195 ret
= tcc_load_object_file(s1
, fd
, 0);
1199 #ifndef TCC_TARGET_PE
1200 if (ehdr
.e_type
== ET_DYN
) {
1201 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1202 #ifdef TCC_IS_NATIVE
1204 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1209 ret
= tcc_load_dll(s1
, fd
, filename
,
1210 (flags
& AFF_REFERENCED_DLL
) != 0);
1215 tcc_error_noabort("unrecognized ELF file");
1219 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1220 file
->line_num
= 0; /* do not display line number if error */
1221 ret
= tcc_load_archive(s1
, fd
);
1225 #ifdef TCC_TARGET_COFF
1226 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1227 ret
= tcc_load_coff(s1
, fd
);
1232 #ifdef TCC_TARGET_PE
1233 ret
= pe_load_file(s1
, filename
, fd
);
1235 /* as GNU ld, consider it is an ld script if not recognized */
1236 ret
= tcc_load_ldscript(s1
);
1239 tcc_error_noabort("unrecognized file type");
1246 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1248 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1249 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
);
1251 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
);
1254 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1256 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1260 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1261 const char *filename
, int flags
, char **paths
, int nb_paths
)
1266 for(i
= 0; i
< nb_paths
; i
++) {
1267 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1268 if (tcc_add_file_internal(s
, buf
, flags
) == 0)
1274 /* find and load a dll. Return non zero if not found */
1275 /* XXX: add '-rpath' option support ? */
1276 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1278 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1279 s
->library_paths
, s
->nb_library_paths
);
1282 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1284 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1285 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1286 tcc_error_noabort("file '%s' not found", filename
);
1290 /* the library name is the same as the argument of the '-l' option */
1291 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1293 #ifdef TCC_TARGET_PE
1294 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1295 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1297 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1298 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1301 if (0 == tcc_add_library_internal(s
, *pp
,
1302 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1309 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1311 #ifdef TCC_TARGET_PE
1312 /* On x86_64 'val' might not be reachable with a 32bit offset.
1313 So it is handled here as if it were in a DLL. */
1314 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1316 /* XXX: Same problem on linux but currently "solved" elsewhere
1317 via the rather dirty 'runtime_plt_and_got' hack. */
1318 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1319 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1325 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1327 s
->output_type
= output_type
;
1330 /* default include paths */
1331 /* -isystem paths have already been handled */
1332 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1335 /* if bound checking, then add corresponding sections */
1336 #ifdef CONFIG_TCC_BCHECK
1337 if (s
->do_bounds_check
) {
1339 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1340 /* create bounds sections */
1341 bounds_section
= new_section(s
, ".bounds",
1342 SHT_PROGBITS
, SHF_ALLOC
);
1343 lbounds_section
= new_section(s
, ".lbounds",
1344 SHT_PROGBITS
, SHF_ALLOC
);
1348 if (s
->char_is_unsigned
) {
1349 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1352 /* add debug sections */
1355 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1356 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1357 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1358 put_elf_str(stabstr_section
, "");
1359 stab_section
->link
= stabstr_section
;
1360 /* put first entry */
1361 put_stabs("", 0, 0, 0, 0);
1364 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1365 #ifdef TCC_TARGET_PE
1367 tcc_add_systemdir(s
);
1370 /* add libc crt1/crti objects */
1371 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1373 if (output_type
!= TCC_OUTPUT_DLL
)
1374 tcc_add_crt(s
, "crt1.o");
1375 tcc_add_crt(s
, "crti.o");
1381 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1383 tcc_free(s
->tcc_lib_path
);
1384 s
->tcc_lib_path
= tcc_strdup(path
);
1387 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1388 #define FD_INVERT 0x0002 /* invert value before storing */
1390 typedef struct FlagDef
{
1396 static const FlagDef warning_defs
[] = {
1397 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1398 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1399 { offsetof(TCCState
, warn_error
), 0, "error" },
1400 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1401 "implicit-function-declaration" },
1404 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1405 const char *name
, int value
)
1412 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1416 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1417 if (!strcmp(r
, p
->name
))
1422 if (p
->flags
& FD_INVERT
)
1424 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1428 /* set/reset a warning */
1429 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1434 if (!strcmp(warning_name
, "all")) {
1435 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1436 if (p
->flags
& WD_ALL
)
1437 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1441 return set_flag(s
, warning_defs
, countof(warning_defs
),
1442 warning_name
, value
);
1446 static const FlagDef flag_defs
[] = {
1447 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1448 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1449 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1450 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1453 /* set/reset a flag */
1454 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1456 return set_flag(s
, flag_defs
, countof(flag_defs
),
1461 static int strstart(const char *val
, const char **str
)
1476 /* Like strstart, but automatically takes into account that ld options can
1478 * - start with double or single dash (e.g. '--soname' or '-soname')
1479 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1480 * or '-Wl,-soname=x.so')
1482 * you provide `val` always in 'option[=]' form (no leading -)
1484 static int link_option(const char *str
, const char *val
, const char **ptr
)
1488 /* there should be 1 or 2 dashes */
1494 /* then str & val should match (potentialy up to '=') */
1498 while (*q
!= '\0' && *q
!= '=') {
1505 /* '=' near eos means ',' or '=' is ok */
1507 if (*p
!= ',' && *p
!= '=')
1518 static const char *skip_linker_arg(const char **str
)
1520 const char *s1
= *str
;
1521 const char *s2
= strchr(s1
, ',');
1522 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1526 static char *copy_linker_arg(const char *p
)
1529 skip_linker_arg(&q
);
1530 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1533 /* set linker options */
1534 static int tcc_set_linker(TCCState
*s
, const char *option
)
1536 while (option
&& *option
) {
1538 const char *p
= option
;
1542 if (link_option(option
, "Bsymbolic", &p
)) {
1544 } else if (link_option(option
, "nostdlib", &p
)) {
1546 } else if (link_option(option
, "fini=", &p
)) {
1547 s
->fini_symbol
= copy_linker_arg(p
);
1549 } else if (link_option(option
, "image-base=", &p
)
1550 || link_option(option
, "Ttext=", &p
)) {
1551 s
->text_addr
= strtoull(p
, &end
, 16);
1552 s
->has_text_addr
= 1;
1553 } else if (link_option(option
, "init=", &p
)) {
1554 s
->init_symbol
= copy_linker_arg(p
);
1556 } else if (link_option(option
, "oformat=", &p
)) {
1557 #if defined(TCC_TARGET_PE)
1558 if (strstart("pe-", &p
)) {
1559 #elif defined(TCC_TARGET_X86_64)
1560 if (strstart("elf64-", &p
)) {
1562 if (strstart("elf32-", &p
)) {
1564 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1565 } else if (!strcmp(p
, "binary")) {
1566 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1567 #ifdef TCC_TARGET_COFF
1568 } else if (!strcmp(p
, "coff")) {
1569 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1574 } else if (link_option(option
, "as-needed", &p
)) {
1576 } else if (link_option(option
, "O", &p
)) {
1578 } else if (link_option(option
, "rpath=", &p
)) {
1579 s
->rpath
= copy_linker_arg(p
);
1580 } else if (link_option(option
, "section-alignment=", &p
)) {
1581 s
->section_align
= strtoul(p
, &end
, 16);
1582 } else if (link_option(option
, "soname=", &p
)) {
1583 s
->soname
= copy_linker_arg(p
);
1584 #ifdef TCC_TARGET_PE
1585 } else if (link_option(option
, "file-alignment=", &p
)) {
1586 s
->pe_file_align
= strtoul(p
, &end
, 16);
1587 } else if (link_option(option
, "stack=", &p
)) {
1588 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1589 } else if (link_option(option
, "subsystem=", &p
)) {
1590 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1591 if (!strcmp(p
, "native")) {
1592 s
->pe_subsystem
= 1;
1593 } else if (!strcmp(p
, "console")) {
1594 s
->pe_subsystem
= 3;
1595 } else if (!strcmp(p
, "gui")) {
1596 s
->pe_subsystem
= 2;
1597 } else if (!strcmp(p
, "posix")) {
1598 s
->pe_subsystem
= 7;
1599 } else if (!strcmp(p
, "efiapp")) {
1600 s
->pe_subsystem
= 10;
1601 } else if (!strcmp(p
, "efiboot")) {
1602 s
->pe_subsystem
= 11;
1603 } else if (!strcmp(p
, "efiruntime")) {
1604 s
->pe_subsystem
= 12;
1605 } else if (!strcmp(p
, "efirom")) {
1606 s
->pe_subsystem
= 13;
1607 #elif defined(TCC_TARGET_ARM)
1608 if (!strcmp(p
, "wince")) {
1609 s
->pe_subsystem
= 9;
1617 if (ignoring
&& s
->warn_unsupported
) err
: {
1619 pstrcpy(buf
, sizeof buf
, e
= copy_linker_arg(option
)), tcc_free(e
);
1621 tcc_warning("unsupported linker option '%s'", buf
);
1623 tcc_error("unsupported linker option '%s'", buf
);
1625 option
= skip_linker_arg(&p
);
1630 typedef struct TCCOption
{
1649 TCC_OPTION_float_abi
,
1662 TCC_OPTION_nostdinc
,
1663 TCC_OPTION_nostdlib
,
1664 TCC_OPTION_print_search_dirs
,
1665 TCC_OPTION_rdynamic
,
1666 TCC_OPTION_pedantic
,
1669 TCC_OPTION_norunsrc
,
1677 TCC_OPTION_dumpversion
,
1680 #define TCC_OPTION_HAS_ARG 0x0001
1681 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1683 static const TCCOption tcc_options
[] = {
1684 { "h", TCC_OPTION_HELP
, 0 },
1685 { "-help", TCC_OPTION_HELP
, 0 },
1686 { "?", TCC_OPTION_HELP
, 0 },
1687 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1688 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1689 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1690 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
1691 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
1692 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1693 { "bench", TCC_OPTION_bench
, 0 },
1694 #ifdef CONFIG_TCC_BACKTRACE
1695 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
1697 #ifdef CONFIG_TCC_BCHECK
1698 { "b", TCC_OPTION_b
, 0 },
1700 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1701 { "c", TCC_OPTION_c
, 0 },
1702 #ifdef TCC_TARGET_ARM
1703 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
1705 { "static", TCC_OPTION_static
, 0 },
1706 { "shared", TCC_OPTION_shared
, 0 },
1707 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
1708 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
1709 { "pedantic", TCC_OPTION_pedantic
, 0},
1710 { "pthread", TCC_OPTION_pthread
, 0},
1711 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1712 { "norunsrc", TCC_OPTION_norunsrc
, 0 },
1713 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
1714 { "r", TCC_OPTION_r
, 0 },
1715 { "s", TCC_OPTION_s
, 0 },
1716 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1717 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1718 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1719 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
1720 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1721 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
1722 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
1723 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
1724 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
1725 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
1726 { "w", TCC_OPTION_w
, 0 },
1727 { "pipe", TCC_OPTION_pipe
, 0},
1728 { "E", TCC_OPTION_E
, 0},
1729 { "MD", TCC_OPTION_MD
, 0},
1730 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
1731 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
1732 { "dumpversion", TCC_OPTION_dumpversion
, 0},
1736 static void parse_option_D(TCCState
*s1
, const char *optarg
)
1738 char *sym
= tcc_strdup(optarg
);
1739 char *value
= strchr(sym
, '=');
1742 tcc_define_symbol(s1
, sym
, value
);
1746 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
1748 const TCCOption
*popt
;
1749 const char *optarg
, *r
;
1755 /* collect -Wl options for input such as "-Wl,-rpath -Wl,<path>" */
1757 cstr_new(&linker_arg
);
1759 while (optind
< argc
) {
1762 if (r
[0] != '-' || r
[1] == '\0') {
1763 /* add a new file */
1764 if (!run
|| !norunsrc
)
1765 dynarray_add((void ***)&s
->files
, &s
->nb_files
, tcc_strdup(r
));
1768 /* argv[0] will be this file */
1774 /* find option in table */
1775 for(popt
= tcc_options
; ; ++popt
) {
1776 const char *p1
= popt
->name
;
1777 const char *r1
= r
+ 1;
1779 tcc_error("invalid option -- '%s'", r
);
1780 if (!strstart(p1
, &r1
))
1783 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
1784 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
1786 tcc_error("argument to '%s' is missing", r
);
1787 optarg
= argv
[optind
++];
1789 } else if (*r1
!= '\0')
1794 switch(popt
->index
) {
1795 case TCC_OPTION_HELP
:
1798 if (tcc_add_include_path(s
, optarg
) < 0)
1799 tcc_error("too many include paths");
1802 parse_option_D(s
, optarg
);
1805 tcc_undefine_symbol(s
, optarg
);
1808 tcc_add_library_path(s
, optarg
);
1811 /* set tcc utilities path (mainly for tcc development) */
1812 tcc_set_lib_path(s
, optarg
);
1815 dynarray_add((void ***)&s
->files
, &s
->nb_files
, tcc_strdup(r
));
1818 case TCC_OPTION_pthread
:
1819 parse_option_D(s
, "_REENTRANT");
1822 case TCC_OPTION_bench
:
1825 #ifdef CONFIG_TCC_BACKTRACE
1827 tcc_set_num_callers(atoi(optarg
));
1830 #ifdef CONFIG_TCC_BCHECK
1832 s
->do_bounds_check
= 1;
1840 s
->output_type
= TCC_OUTPUT_OBJ
;
1842 #ifdef TCC_TARGET_ARM
1843 case TCC_OPTION_float_abi
:
1844 /* tcc doesn't support soft float yet */
1845 if (!strcmp(optarg
, "softfp")) {
1846 s
->float_abi
= ARM_SOFTFP_FLOAT
;
1847 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
1848 } else if (!strcmp(optarg
, "hard"))
1849 s
->float_abi
= ARM_HARD_FLOAT
;
1851 tcc_error("unsupported float abi '%s'", optarg
);
1854 case TCC_OPTION_static
:
1857 case TCC_OPTION_shared
:
1858 s
->output_type
= TCC_OUTPUT_DLL
;
1860 case TCC_OPTION_soname
:
1861 s
->soname
= tcc_strdup(optarg
);
1864 s
->option_m
= tcc_strdup(optarg
);
1867 s
->outfile
= tcc_strdup(optarg
);
1870 /* generate a .o merging several output files */
1872 s
->output_type
= TCC_OUTPUT_OBJ
;
1874 case TCC_OPTION_isystem
:
1875 tcc_add_sysinclude_path(s
, optarg
);
1877 case TCC_OPTION_nostdinc
:
1880 case TCC_OPTION_nostdlib
:
1883 case TCC_OPTION_print_search_dirs
:
1884 s
->print_search_dirs
= 1;
1886 case TCC_OPTION_run
:
1887 s
->output_type
= TCC_OUTPUT_MEMORY
;
1888 tcc_set_options(s
, optarg
);
1891 case TCC_OPTION_norunsrc
:
1895 do ++s
->verbose
; while (*optarg
++ == 'v');
1898 if (tcc_set_flag(s
, optarg
, 1) < 0 && s
->warn_unsupported
)
1899 goto unsupported_option
;
1902 if (tcc_set_warning(s
, optarg
, 1) < 0 &&
1903 s
->warn_unsupported
)
1904 goto unsupported_option
;
1909 case TCC_OPTION_rdynamic
:
1913 if (linker_arg
.size
)
1914 --linker_arg
.size
, cstr_ccat(&linker_arg
, ',');
1915 cstr_cat(&linker_arg
, optarg
);
1916 cstr_ccat(&linker_arg
, '\0');
1919 s
->output_type
= TCC_OUTPUT_PREPROCESS
;
1925 s
->deps_outfile
= tcc_strdup(optarg
);
1927 case TCC_OPTION_dumpversion
:
1928 printf ("%s\n", TCC_VERSION
);
1931 case TCC_OPTION_pedantic
:
1932 case TCC_OPTION_pipe
:
1938 if (s
->warn_unsupported
) {
1940 tcc_warning("unsupported option '%s'", r
);
1946 if (pthread
&& s
->output_type
!= TCC_OUTPUT_OBJ
)
1947 tcc_set_options(s
, "-lpthread");
1949 tcc_set_linker(s
, (const char *)linker_arg
.data
);
1950 cstr_free(&linker_arg
);
1955 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *str
)
1962 argc
= 0, argv
= NULL
;
1964 while (is_space(*str
))
1969 while (*str
!= '\0' && !is_space(*str
))
1972 arg
= tcc_malloc(len
+ 1);
1973 pstrncpy(arg
, s1
, len
);
1974 dynarray_add((void ***)&argv
, &argc
, arg
);
1976 ret
= tcc_parse_args(s
, argc
, argv
);
1977 dynarray_reset(&argv
, &argc
);
1981 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
1984 tt
= (double)total_time
/ 1000000.0;
1987 if (total_bytes
< 1)
1989 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1990 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
1991 tt
, (int)(total_lines
/ tt
),
1992 total_bytes
/ tt
/ 1000000.0);
1995 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
1999 path
= getenv("C_INCLUDE_PATH");
2001 tcc_add_include_path(s
, path
);
2003 path
= getenv("CPATH");
2005 tcc_add_include_path(s
, path
);
2007 path
= getenv("LIBRARY_PATH");
2009 tcc_add_library_path(s
, path
);