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
21 #define NEED_FLOAT_TYPES
24 /********************************************************/
25 /* global variables */
27 /* use GNU C extensions */
28 ST_DATA
int gnu_ext
= 1;
30 /* use TinyCC extensions */
31 ST_DATA
int tcc_ext
= 1;
33 /* XXX: get rid of this ASAP */
34 ST_DATA
struct TCCState
*tcc_state
;
36 #ifdef CONFIG_TCC_BACKTRACE
37 ST_DATA
int num_callers
= 6;
38 ST_DATA
const char **rt_bound_error_msg
;
39 ST_DATA
void *rt_prog_main
;
42 /********************************************************/
49 #ifdef TCC_TARGET_I386
58 #ifdef TCC_TARGET_X86_64
59 #include "x86_64-gen.c"
63 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
67 #ifdef TCC_TARGET_COFF
73 #endif /* ALL_IN_ONE */
75 /********************************************************/
76 #ifndef CONFIG_TCC_ASM
77 ST_FUNC
void asm_instr(void)
79 error("inline asm() not supported");
81 ST_FUNC
void asm_global_instr(void)
83 error("inline asm() not supported");
87 /********************************************************/
90 static char *normalize_slashes(char *path
)
93 for (p
= path
; *p
; ++p
)
99 static HMODULE tcc_module
;
101 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
102 static void tcc_set_lib_path_w32(TCCState
*s
)
105 GetModuleFileNameA(tcc_module
, path
, sizeof path
);
106 p
= tcc_basename(normalize_slashes(strlwr(path
)));
107 if (p
- 5 > path
&& 0 == strncmp(p
- 5, "/bin/", 5))
112 tcc_set_lib_path(s
, path
);
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 /* extract the basename of a file */
164 PUB_FUNC
char *tcc_basename(const char *name
)
166 char *p
= strchr(name
, 0);
167 while (p
> name
&& !IS_PATHSEP(p
[-1]))
172 /* extract extension part of a file
174 * (if no extension, return pointer to end-of-string)
176 PUB_FUNC
char *tcc_fileextension (const char *name
)
178 char *b
= tcc_basename(name
);
179 char *e
= strrchr(b
, '.');
180 return e
? e
: strchr(b
, 0);
183 /********************************************************/
184 /* memory management */
193 unsigned malloc_usable_size(void*);
196 PUB_FUNC
void tcc_free(void *ptr
)
199 mem_cur_size
-= malloc_usable_size(ptr
);
204 PUB_FUNC
void *tcc_malloc(unsigned long size
)
209 error("memory full");
211 mem_cur_size
+= malloc_usable_size(ptr
);
212 if (mem_cur_size
> mem_max_size
)
213 mem_max_size
= mem_cur_size
;
218 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
221 ptr
= tcc_malloc(size
);
222 memset(ptr
, 0, size
);
226 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
230 mem_cur_size
-= malloc_usable_size(ptr
);
232 ptr1
= realloc(ptr
, size
);
234 /* NOTE: count not correct if alloc error, but not critical */
235 mem_cur_size
+= malloc_usable_size(ptr1
);
236 if (mem_cur_size
> mem_max_size
)
237 mem_max_size
= mem_cur_size
;
242 PUB_FUNC
char *tcc_strdup(const char *str
)
245 ptr
= tcc_malloc(strlen(str
) + 1);
250 /* out must not point to a valid dynarray since a new one is created */
251 PUB_FUNC
int tcc_split_path_components(const char *in
,
252 const char * const *prefixs
,
253 int nb_prefixs
, char ***out
)
255 int i
, nb_components
= 0;
256 char *path_component
;
257 const char *end_component
;
263 while (*end_component
&& *end_component
!= ':')
265 for (i
= 0; i
< nb_prefixs
; i
++) {
266 path_size
= (strlen(prefixs
[i
]) + 1) * sizeof(char)
267 + (end_component
- in
);
268 path_component
= tcc_malloc(path_size
);
269 pstrcpy(path_component
, path_size
, prefixs
[i
]);
270 pstrcat(path_component
, path_size
, in
);
271 dynarray_add((void ***) out
, &nb_components
, path_component
);
273 in
= ++end_component
;
274 } while (*end_component
);
275 return nb_components
;
278 PUB_FUNC
void tcc_memstats(void)
281 printf("memory in use: %d\n", mem_cur_size
);
285 #define free(p) use_tcc_free(p)
286 #define malloc(s) use_tcc_malloc(s)
287 #define realloc(p, s) use_tcc_realloc(p, s)
289 /********************************************************/
292 PUB_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
299 /* every power of two we double array size */
300 if ((nb
& (nb
- 1)) == 0) {
305 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
307 error("memory full");
314 PUB_FUNC
void dynarray_reset(void *pp
, int *n
)
317 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
320 tcc_free(*(void**)pp
);
324 /* we use our own 'finite' function to avoid potential problems with
325 non standard math libs */
326 /* XXX: endianness dependent */
327 ST_FUNC
int ieee_finite(double d
)
330 return ((unsigned)((p
[1] | 0x800fffff) + 1)) >> 31;
333 /********************************************************/
335 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
339 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
340 strcpy(sec
->name
, name
);
341 sec
->sh_type
= sh_type
;
342 sec
->sh_flags
= sh_flags
;
350 sec
->sh_addralign
= 4;
353 sec
->sh_addralign
= 1;
356 sec
->sh_addralign
= 32; /* default conservative alignment */
360 if (sh_flags
& SHF_PRIVATE
) {
361 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
363 sec
->sh_num
= s1
->nb_sections
;
364 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
370 static void free_section(Section
*s
)
375 /* realloc section and set its content to zero */
376 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
381 size
= sec
->data_allocated
;
384 while (size
< new_size
)
386 data
= tcc_realloc(sec
->data
, size
);
388 error("memory full");
389 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
391 sec
->data_allocated
= size
;
394 /* reserve at least 'size' bytes in section 'sec' from
396 ST_FUNC
void *section_ptr_add(Section
*sec
, unsigned long size
)
398 unsigned long offset
, offset1
;
400 offset
= sec
->data_offset
;
401 offset1
= offset
+ size
;
402 if (offset1
> sec
->data_allocated
)
403 section_realloc(sec
, offset1
);
404 sec
->data_offset
= offset1
;
405 return sec
->data
+ offset
;
408 /* reserve at least 'size' bytes from section start */
409 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
411 if (size
> sec
->data_allocated
)
412 section_realloc(sec
, size
);
413 if (size
> sec
->data_offset
)
414 sec
->data_offset
= size
;
417 /* return a reference to a section, and create it if it does not
419 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
423 for(i
= 1; i
< s1
->nb_sections
; i
++) {
424 sec
= s1
->sections
[i
];
425 if (!strcmp(name
, sec
->name
))
428 /* sections are created as PROGBITS */
429 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
432 /* update sym->c so that it points to an external symbol in section
433 'section' with value 'value' */
434 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
435 unsigned long value
, unsigned long size
,
436 int can_add_underscore
)
438 int sym_type
, sym_bind
, sh_num
, info
, other
;
445 else if (section
== SECTION_ABS
)
448 sh_num
= section
->sh_num
;
450 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
452 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
453 sym_type
= STT_NOTYPE
;
455 sym_type
= STT_OBJECT
;
458 if (sym
->type
.t
& VT_STATIC
)
459 sym_bind
= STB_LOCAL
;
461 if (sym
->type
.t
& VT_WEAK
)
464 sym_bind
= STB_GLOBAL
;
468 name
= get_tok_str(sym
->v
, NULL
);
469 #ifdef CONFIG_TCC_BCHECK
470 if (tcc_state
->do_bounds_check
) {
473 /* XXX: avoid doing that for statics ? */
474 /* if bound checking is activated, we change some function
475 names by adding the "__bound" prefix */
478 /* XXX: we rely only on malloc hooks */
491 strcpy(buf
, "__bound_");
501 if (sym
->type
.t
& VT_EXPORT
)
503 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
504 int attr
= sym
->type
.ref
->r
;
505 if (FUNC_EXPORT(attr
))
507 if (FUNC_CALL(attr
) == FUNC_STDCALL
&& can_add_underscore
) {
508 sprintf(buf1
, "_%s@%d", name
, FUNC_ARGS(attr
) * PTR_SIZE
);
511 can_add_underscore
= 0;
514 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
516 if (sym
->type
.t
& VT_IMPORT
)
520 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
522 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
525 if (sym
->asm_label
) {
526 name
= sym
->asm_label
;
528 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
529 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
531 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
532 esym
->st_value
= value
;
533 esym
->st_size
= size
;
534 esym
->st_shndx
= sh_num
;
538 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
539 unsigned long value
, unsigned long size
)
541 put_extern_sym2(sym
, section
, value
, size
, 1);
544 /* add a new relocation entry to symbol 'sym' in section 's' */
545 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
550 put_extern_sym(sym
, NULL
, 0, 0);
553 /* now we can add ELF relocation info */
554 put_elf_reloc(symtab_section
, s
, offset
, type
, c
);
557 /********************************************************/
559 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
563 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
566 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
570 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
574 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
581 for(f
= s1
->include_stack
; f
< s1
->include_stack_ptr
; f
++)
582 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
583 (*f
)->filename
, (*f
)->line_num
);
584 if (file
->line_num
> 0) {
585 strcat_printf(buf
, sizeof(buf
),
586 "%s:%d: ", file
->filename
, file
->line_num
);
588 strcat_printf(buf
, sizeof(buf
),
589 "%s: ", file
->filename
);
592 strcat_printf(buf
, sizeof(buf
),
596 strcat_printf(buf
, sizeof(buf
), "warning: ");
598 strcat_printf(buf
, sizeof(buf
), "error: ");
599 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
601 if (!s1
->error_func
) {
602 /* default case: stderr */
603 fprintf(stderr
, "%s\n", buf
);
605 s1
->error_func(s1
->error_opaque
, buf
);
607 if (!is_warning
|| s1
->warn_error
)
611 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
612 void (*error_func
)(void *opaque
, const char *msg
))
614 s
->error_opaque
= error_opaque
;
615 s
->error_func
= error_func
;
618 /* error without aborting current compilation */
619 PUB_FUNC
void error_noabort(const char *fmt
, ...)
621 TCCState
*s1
= tcc_state
;
625 error1(s1
, 0, fmt
, ap
);
629 PUB_FUNC
void error(const char *fmt
, ...)
631 TCCState
*s1
= tcc_state
;
635 error1(s1
, 0, fmt
, ap
);
637 /* better than nothing: in some cases, we accept to handle errors */
638 if (s1
->error_set_jmp_enabled
) {
639 longjmp(s1
->error_jmp_buf
, 1);
641 /* XXX: eliminate this someday */
646 PUB_FUNC
void expect(const char *msg
)
648 error("%s expected", msg
);
651 PUB_FUNC
void warning(const char *fmt
, ...)
653 TCCState
*s1
= tcc_state
;
660 error1(s1
, 1, fmt
, ap
);
664 /********************************************************/
667 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
670 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
672 bf
= tcc_malloc(sizeof(BufferedFile
) + buflen
);
673 bf
->buf_ptr
= bf
->buffer
;
674 bf
->buf_end
= bf
->buffer
+ initlen
;
675 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
676 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
678 normalize_slashes(bf
->filename
);
681 bf
->ifndef_macro
= 0;
682 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
688 ST_FUNC
void tcc_close(void)
690 BufferedFile
*bf
= file
;
693 total_lines
+= bf
->line_num
;
699 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
702 if (strcmp(filename
, "-") == 0)
703 fd
= 0, filename
= "stdin";
705 fd
= open(filename
, O_RDONLY
| O_BINARY
);
706 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
707 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
708 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
712 tcc_open_bf(s1
, filename
, 0);
717 /* compile the C file opened in 'file'. Return non zero if errors. */
718 static int tcc_compile(TCCState
*s1
)
723 volatile int section_sym
;
726 printf("%s: **** new file\n", file
->filename
);
730 cur_text_section
= NULL
;
732 anon_sym
= SYM_FIRST_ANOM
;
734 /* file info: full path + filename */
735 section_sym
= 0; /* avoid warning */
737 section_sym
= put_elf_sym(symtab_section
, 0, 0,
738 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
739 text_section
->sh_num
, NULL
);
740 getcwd(buf
, sizeof(buf
));
742 normalize_slashes(buf
);
744 pstrcat(buf
, sizeof(buf
), "/");
745 put_stabs_r(buf
, N_SO
, 0, 0,
746 text_section
->data_offset
, text_section
, section_sym
);
747 put_stabs_r(file
->filename
, N_SO
, 0, 0,
748 text_section
->data_offset
, text_section
, section_sym
);
750 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
751 symbols can be safely used */
752 put_elf_sym(symtab_section
, 0, 0,
753 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
754 SHN_ABS
, file
->filename
);
756 /* define some often used types */
759 char_pointer_type
.t
= VT_BYTE
;
760 mk_pointer(&char_pointer_type
);
762 func_old_type
.t
= VT_FUNC
;
763 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
765 #if defined(TCC_ARM_EABI) && defined(TCC_ARM_VFP)
766 float_type
.t
= VT_FLOAT
;
767 double_type
.t
= VT_DOUBLE
;
769 func_float_type
.t
= VT_FUNC
;
770 func_float_type
.ref
= sym_push(SYM_FIELD
, &float_type
, FUNC_CDECL
, FUNC_OLD
);
771 func_double_type
.t
= VT_FUNC
;
772 func_double_type
.ref
= sym_push(SYM_FIELD
, &double_type
, FUNC_CDECL
, FUNC_OLD
);
776 /* define 'void *alloca(unsigned int)' builtin function */
781 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
782 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
785 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
789 define_start
= define_stack
;
792 if (setjmp(s1
->error_jmp_buf
) == 0) {
794 s1
->error_set_jmp_enabled
= 1;
796 ch
= file
->buf_ptr
[0];
797 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
798 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
;
803 expect("declaration");
805 warning("internal compiler error: vstack leak? (%d)", vtop
- pvtop
);
807 /* end of translation unit info */
809 put_stabs_r(NULL
, N_SO
, 0, 0,
810 text_section
->data_offset
, text_section
, section_sym
);
814 s1
->error_set_jmp_enabled
= 0;
816 /* reset define stack, but leave -Dsymbols (may be incorrect if
817 they are undefined) */
818 free_defines(define_start
);
820 gen_inline_functions();
822 sym_pop(&global_stack
, NULL
);
823 sym_pop(&local_stack
, NULL
);
825 return s1
->nb_errors
!= 0 ? -1 : 0;
828 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
833 tcc_open_bf(s
, "<string>", len
);
834 memcpy(file
->buffer
, str
, len
);
835 ret
= tcc_compile(s
);
840 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
841 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
848 len2
= strlen(value
);
850 /* init file structure */
851 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
852 memcpy(file
->buffer
, sym
, len1
);
853 file
->buffer
[len1
] = ' ';
854 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
856 /* parse with define parser */
857 ch
= file
->buf_ptr
[0];
864 /* undefine a preprocessor symbol */
865 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
869 ts
= tok_alloc(sym
, strlen(sym
));
870 s
= define_find(ts
->tok
);
871 /* undefine symbol by putting an invalid name */
876 static void tcc_cleanup(void)
880 if (NULL
== tcc_state
)
884 /* free -D defines */
888 n
= tok_ident
- TOK_IDENT
;
889 for(i
= 0; i
< n
; i
++)
890 tcc_free(table_ident
[i
]);
891 tcc_free(table_ident
);
894 dynarray_reset(&sym_pools
, &nb_sym_pools
);
897 /* reset symbol stack */
898 sym_free_first
= NULL
;
899 /* cleanup from error/setjmp */
903 LIBTCCAPI TCCState
*tcc_new(void)
911 s
= tcc_mallocz(sizeof(TCCState
));
916 tcc_set_lib_path_w32(s
);
918 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
920 s
->output_type
= TCC_OUTPUT_MEMORY
;
922 s
->include_stack_ptr
= s
->include_stack
;
924 /* we add dummy defines for some special macros to speed up tests
925 and to have working defined() */
926 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
927 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
928 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
929 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
931 /* standard defines */
932 tcc_define_symbol(s
, "__STDC__", NULL
);
933 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
934 #if defined(TCC_TARGET_I386)
935 tcc_define_symbol(s
, "__i386__", NULL
);
936 tcc_define_symbol(s
, "__i386", NULL
);
937 tcc_define_symbol(s
, "i386", NULL
);
939 #if defined(TCC_TARGET_X86_64)
940 tcc_define_symbol(s
, "__x86_64__", NULL
);
942 #if defined(TCC_TARGET_ARM)
943 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
944 tcc_define_symbol(s
, "__arm_elf__", NULL
);
945 tcc_define_symbol(s
, "__arm_elf", NULL
);
946 tcc_define_symbol(s
, "arm_elf", NULL
);
947 tcc_define_symbol(s
, "__arm__", NULL
);
948 tcc_define_symbol(s
, "__arm", NULL
);
949 tcc_define_symbol(s
, "arm", NULL
);
950 tcc_define_symbol(s
, "__APCS_32__", NULL
);
953 tcc_define_symbol(s
, "_WIN32", NULL
);
954 #ifdef TCC_TARGET_X86_64
955 tcc_define_symbol(s
, "_WIN64", NULL
);
958 tcc_define_symbol(s
, "__unix__", NULL
);
959 tcc_define_symbol(s
, "__unix", NULL
);
960 tcc_define_symbol(s
, "unix", NULL
);
961 #if defined(__FreeBSD__)
963 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
966 #if defined(__FreeBSD_kernel__)
967 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
970 tcc_define_symbol(s
, "__linux__", NULL
);
971 tcc_define_symbol(s
, "__linux", NULL
);
974 /* tiny C specific defines */
975 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
976 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
977 tcc_define_symbol(s
, "__TINYC__", buffer
);
979 /* tiny C & gcc defines */
980 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
981 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
982 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
984 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
985 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
989 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
991 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
995 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
997 #ifndef TCC_TARGET_PE
998 /* default library paths */
999 tcc_add_library_path(s
, CONFIG_TCC_CRT_PREFIX
);
1000 tcc_add_library_path(s
, CONFIG_SYSROOT CONFIG_TCC_LDDIR
);
1001 tcc_add_library_path(s
, CONFIG_SYSROOT
"/usr/local"CONFIG_TCC_LDDIR
);
1002 #ifdef CONFIG_TCC_EXTRA_LDDIR
1004 int i
, nb_extra_lddirs
, nb_prefixs
;
1005 char **extra_lddirs
;
1006 char extra_lddir_str
[] = CONFIG_TCC_EXTRA_LDDIR
;
1007 const char lddir_prefix1
[] = CONFIG_SYSROOT
;
1008 const char lddir_prefix2
[] = CONFIG_SYSROOT
"/usr/local";
1009 const char * const lddir_prefixs
[] = {lddir_prefix1
, lddir_prefix2
};
1011 nb_prefixs
= sizeof lddir_prefixs
/ sizeof *lddir_prefixs
;
1012 nb_extra_lddirs
= tcc_split_path_components(CONFIG_TCC_EXTRA_LDDIR
,
1013 lddir_prefixs
, nb_prefixs
,
1015 for (i
= 0; i
< nb_extra_lddirs
; i
++)
1016 tcc_add_library_path(s
, extra_lddirs
[i
]);
1017 dynarray_reset(&extra_lddirs
, &nb_extra_lddirs
);
1022 /* no section zero */
1023 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1025 /* create standard sections */
1026 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1027 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1028 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1030 /* symbols are always generated for linking stage */
1031 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1033 ".hashtab", SHF_PRIVATE
);
1034 strtab_section
= symtab_section
->link
;
1036 /* private symbol table for dynamic symbols */
1037 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1039 ".dynhashtab", SHF_PRIVATE
);
1040 s
->alacarte_link
= 1;
1043 #ifdef CHAR_IS_UNSIGNED
1044 s
->char_is_unsigned
= 1;
1046 /* enable this if you want symbols with leading underscore on windows: */
1047 #if defined(TCC_TARGET_PE) && 0
1048 s
->leading_underscore
= 1;
1050 if (s
->section_align
== 0)
1051 s
->section_align
= ELF_PAGE_SIZE
;
1052 #ifdef TCC_TARGET_I386
1058 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1064 /* free all sections */
1065 for(i
= 1; i
< s1
->nb_sections
; i
++)
1066 free_section(s1
->sections
[i
]);
1067 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1069 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1070 free_section(s1
->priv_sections
[i
]);
1071 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1073 /* free any loaded DLLs */
1074 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1075 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1077 dlclose(ref
->handle
);
1080 /* free loaded dlls array */
1081 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1083 /* free library paths */
1084 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1086 /* free include paths */
1087 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1088 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1089 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1091 tcc_free(s1
->tcc_lib_path
);
1093 dynarray_reset(&s1
->input_files
, &s1
->nb_input_files
);
1094 dynarray_reset(&s1
->input_libs
, &s1
->nb_input_libs
);
1095 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1098 munmap (s1
->write_mem
, s1
->mem_size
);
1099 munmap (s1
->runtime_mem
, s1
->mem_size
);
1101 tcc_free(s1
->runtime_mem
);
1106 LIBTCCAPI
int tcc_add_include_path(TCCState
*s1
, const char *pathname
)
1110 pathname1
= tcc_strdup(pathname
);
1111 dynarray_add((void ***)&s1
->include_paths
, &s1
->nb_include_paths
, pathname1
);
1115 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s1
, const char *pathname
)
1119 pathname1
= tcc_strdup(pathname
);
1120 dynarray_add((void ***)&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
, pathname1
);
1124 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1130 /* find source file type with extension */
1131 ext
= tcc_fileextension(filename
);
1135 #ifdef CONFIG_TCC_ASM
1136 /* if .S file, define __ASSEMBLER__ like gcc does */
1137 if (!strcmp(ext
, "S"))
1138 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1142 ret
= tcc_open(s1
, filename
);
1144 if (flags
& AFF_PRINT_ERROR
)
1145 error_noabort("file '%s' not found", filename
);
1149 /* update target deps */
1150 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1151 tcc_strdup(filename
));
1153 if (flags
& AFF_PREPROCESS
) {
1154 ret
= tcc_preprocess(s1
);
1158 if (!ext
[0] || !PATHCMP(ext
, "c")) {
1159 /* C file assumed */
1160 ret
= tcc_compile(s1
);
1164 #ifdef CONFIG_TCC_ASM
1165 if (!strcmp(ext
, "S")) {
1166 /* preprocessed assembler */
1167 ret
= tcc_assemble(s1
, 1);
1171 if (!strcmp(ext
, "s")) {
1172 /* non preprocessed assembler */
1173 ret
= tcc_assemble(s1
, 0);
1179 /* assume executable format: auto guess file type */
1180 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1181 lseek(fd
, 0, SEEK_SET
);
1183 error_noabort("could not read header");
1187 if (size
== sizeof(ehdr
) &&
1188 ehdr
.e_ident
[0] == ELFMAG0
&&
1189 ehdr
.e_ident
[1] == ELFMAG1
&&
1190 ehdr
.e_ident
[2] == ELFMAG2
&&
1191 ehdr
.e_ident
[3] == ELFMAG3
) {
1193 /* do not display line number if error */
1195 if (ehdr
.e_type
== ET_REL
) {
1196 ret
= tcc_load_object_file(s1
, fd
, 0);
1200 #ifndef TCC_TARGET_PE
1201 if (ehdr
.e_type
== ET_DYN
) {
1202 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1204 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1208 ret
= tcc_load_dll(s1
, fd
, filename
,
1209 (flags
& AFF_REFERENCED_DLL
) != 0);
1214 error_noabort("unrecognized ELF file");
1218 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1219 file
->line_num
= 0; /* do not display line number if error */
1220 ret
= tcc_load_archive(s1
, fd
);
1224 #ifdef TCC_TARGET_COFF
1225 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1226 ret
= tcc_load_coff(s1
, fd
);
1231 #ifdef TCC_TARGET_PE
1232 ret
= pe_load_file(s1
, filename
, fd
);
1234 /* as GNU ld, consider it is an ld script if not recognized */
1235 ret
= tcc_load_ldscript(s1
);
1238 error_noabort("unrecognized file type");
1245 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1247 dynarray_add((void ***)&s
->input_files
, &s
->nb_input_files
, tcc_strdup(filename
));
1249 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1250 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
);
1252 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
);
1255 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1259 pathname1
= tcc_strdup(pathname
);
1260 dynarray_add((void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname1
);
1264 /* find and load a dll. Return non zero if not found */
1265 /* XXX: add '-rpath' option support ? */
1266 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1271 for(i
= 0; i
< s
->nb_library_paths
; i
++) {
1272 snprintf(buf
, sizeof(buf
), "%s/%s",
1273 s
->library_paths
[i
], filename
);
1274 if (tcc_add_file_internal(s
, buf
, flags
) == 0)
1280 /* the library name is the same as the argument of the '-l' option */
1281 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1286 dynarray_add((void ***)&s
->input_libs
, &s
->nb_input_libs
, tcc_strdup(libraryname
));
1288 /* first we look for the dynamic library if not static linking */
1289 if (!s
->static_link
) {
1290 #ifdef TCC_TARGET_PE
1291 if (pe_add_dll(s
, libraryname
) == 0)
1294 snprintf(buf
, sizeof(buf
), "lib%s.so", libraryname
);
1295 if (tcc_add_dll(s
, buf
, 0) == 0)
1299 /* then we look for the static library */
1300 for(i
= 0; i
< s
->nb_library_paths
; i
++) {
1301 snprintf(buf
, sizeof(buf
), "%s/lib%s.a",
1302 s
->library_paths
[i
], libraryname
);
1303 if (tcc_add_file_internal(s
, buf
, 0) == 0)
1309 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1311 #ifdef TCC_TARGET_PE
1312 pe_putimport(s
, 0, name
, val
);
1314 add_elf_sym(symtab_section
, (uplong
)val
, 0,
1315 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1321 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1325 s
->output_type
= output_type
;
1328 /* default include paths */
1329 /* -isystem paths have already been handled */
1330 #ifndef TCC_TARGET_PE
1332 int i
, nb_extra_incdirs
, nb_prefixs
;
1333 char **extra_incdirs
;
1334 const char incdir_prefix1
[] = CONFIG_SYSROOT
"/usr/local/include";
1335 const char incdir_prefix2
[] = CONFIG_SYSROOT
"/usr/include";
1336 const char * const incdir_prefixs
[] = {incdir_prefix1
,
1339 nb_prefixs
= sizeof incdir_prefixs
/ sizeof *incdir_prefixs
;
1340 nb_extra_incdirs
= tcc_split_path_components(CONFIG_TCC_INCSUBDIR
,
1344 for (i
= 0; i
< nb_extra_incdirs
; i
++)
1345 tcc_add_sysinclude_path(s
, extra_incdirs
[i
]);
1346 dynarray_reset(&extra_incdirs
, &nb_extra_incdirs
);
1349 snprintf(buf
, sizeof(buf
), "%s/include", s
->tcc_lib_path
);
1350 tcc_add_sysinclude_path(s
, buf
);
1351 #ifdef TCC_TARGET_PE
1352 snprintf(buf
, sizeof(buf
), "%s/include/winapi", s
->tcc_lib_path
);
1353 tcc_add_sysinclude_path(s
, buf
);
1357 /* if bound checking, then add corresponding sections */
1358 #ifdef CONFIG_TCC_BCHECK
1359 if (s
->do_bounds_check
) {
1361 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1362 /* create bounds sections */
1363 bounds_section
= new_section(s
, ".bounds",
1364 SHT_PROGBITS
, SHF_ALLOC
);
1365 lbounds_section
= new_section(s
, ".lbounds",
1366 SHT_PROGBITS
, SHF_ALLOC
);
1370 if (s
->char_is_unsigned
) {
1371 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1374 /* add debug sections */
1377 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1378 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1379 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1380 put_elf_str(stabstr_section
, "");
1381 stab_section
->link
= stabstr_section
;
1382 /* put first entry */
1383 put_stabs("", 0, 0, 0, 0);
1386 /* add libc crt1/crti objects */
1387 #ifndef TCC_TARGET_PE
1388 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1390 if (output_type
!= TCC_OUTPUT_DLL
)
1391 tcc_add_file(s
, CONFIG_TCC_CRT_PREFIX
"/crt1.o");
1392 tcc_add_file(s
, CONFIG_TCC_CRT_PREFIX
"/crti.o");
1396 #ifdef TCC_TARGET_PE
1397 #ifdef CONFIG_TCC_CROSSLIB
1398 snprintf(buf
, sizeof(buf
), "%s/" CONFIG_TCC_CROSSLIB
, s
->tcc_lib_path
);
1399 tcc_add_library_path(s
, buf
);
1401 snprintf(buf
, sizeof(buf
), "%s/lib", s
->tcc_lib_path
);
1402 tcc_add_library_path(s
, buf
);
1404 if (GetSystemDirectory(buf
, sizeof buf
))
1405 tcc_add_library_path(s
, buf
);
1412 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1413 #define FD_INVERT 0x0002 /* invert value before storing */
1415 typedef struct FlagDef
{
1421 static const FlagDef warning_defs
[] = {
1422 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1423 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1424 { offsetof(TCCState
, warn_error
), 0, "error" },
1425 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1426 "implicit-function-declaration" },
1429 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1430 const char *name
, int value
)
1437 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1441 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1442 if (!strcmp(r
, p
->name
))
1447 if (p
->flags
& FD_INVERT
)
1449 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1453 /* set/reset a warning */
1454 LIBTCCAPI
int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1459 if (!strcmp(warning_name
, "all")) {
1460 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1461 if (p
->flags
& WD_ALL
)
1462 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1466 return set_flag(s
, warning_defs
, countof(warning_defs
),
1467 warning_name
, value
);
1471 static const FlagDef flag_defs
[] = {
1472 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1473 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1474 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1475 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1478 /* set/reset a flag */
1479 PUB_FUNC
int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1481 return set_flag(s
, flag_defs
, countof(flag_defs
),
1486 static int strstart(const char *str
, const char *val
, char **ptr
)
1491 while (*q
!= '\0') {
1503 /* Like strstart, but automatically takes into account that ld options can
1505 * - start with double or single dash (e.g. '--soname' or '-soname')
1506 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1507 * or '-Wl,-soname=x.so')
1509 * you provide `val` always in 'option[=]' form (no leading -)
1511 static int link_option(const char *str
, const char *val
, char **ptr
)
1515 /* there should be 1 or 2 dashes */
1521 /* then str & val should match (potentialy up to '=') */
1525 while (*q
!= '\0' && *q
!= '=') {
1532 /* '=' near eos means ',' or '=' is ok */
1534 if (*p
!= ',' && *p
!= '=')
1546 /* set linker options */
1547 PUB_FUNC
const char * tcc_set_linker(TCCState
*s
, char *option
, int multi
)
1552 while (option
&& *option
) {
1554 if (link_option(option
, "Bsymbolic", &p
)) {
1556 #ifdef TCC_TARGET_PE
1557 } else if (link_option(option
, "file-alignment=", &p
)) {
1558 s
->pe_file_align
= strtoul(p
, &end
, 16);
1560 } else if (link_option(option
, "fini=", &p
)) {
1562 if (s
->warn_unsupported
)
1563 warning("ignoring -fini %s", p
);
1565 } else if (link_option(option
, "image-base=", &p
)) {
1566 s
->text_addr
= strtoul(p
, &end
, 16);
1567 s
->has_text_addr
= 1;
1568 } else if (link_option(option
, "init=", &p
)) {
1570 if (s
->warn_unsupported
)
1571 warning("ignoring -init %s", p
);
1573 } else if (link_option(option
, "oformat=", &p
)) {
1574 #if defined(TCC_TARGET_PE)
1575 if (strstart(p
, "pe-", NULL
)) {
1577 #if defined(TCC_TARGET_X86_64)
1578 if (strstart(p
, "elf64-", NULL
)) {
1580 if (strstart(p
, "elf32-", NULL
)) {
1583 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1584 } else if (!strcmp(p
, "binary")) {
1585 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1587 #ifdef TCC_TARGET_COFF
1588 if (!strcmp(p
, "coff")) {
1589 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1596 } else if (link_option(option
, "rpath=", &p
)) {
1598 } else if (link_option(option
, "section-alignment=", &p
)) {
1599 s
->section_align
= strtoul(p
, &end
, 16);
1600 } else if (link_option(option
, "soname=", &p
)) {
1603 #ifdef TCC_TARGET_PE
1604 } else if (link_option(option
, "subsystem=", &p
)) {
1605 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1606 if (!strcmp(p
, "native")) {
1607 s
->pe_subsystem
= 1;
1608 } else if (!strcmp(p
, "console")) {
1609 s
->pe_subsystem
= 3;
1610 } else if (!strcmp(p
, "gui")) {
1611 s
->pe_subsystem
= 2;
1612 } else if (!strcmp(p
, "posix")) {
1613 s
->pe_subsystem
= 7;
1614 } else if (!strcmp(p
, "efiapp")) {
1615 s
->pe_subsystem
= 10;
1616 } else if (!strcmp(p
, "efiboot")) {
1617 s
->pe_subsystem
= 11;
1618 } else if (!strcmp(p
, "efiruntime")) {
1619 s
->pe_subsystem
= 12;
1620 } else if (!strcmp(p
, "efirom")) {
1621 s
->pe_subsystem
= 13;
1622 #elif defined(TCC_TARGET_ARM)
1623 if (!strcmp(p
, "wince")) {
1624 s
->pe_subsystem
= 9;
1631 } else if (link_option(option
, "Ttext=", &p
)) {
1632 s
->text_addr
= strtoul(p
, &end
, 16);
1633 s
->has_text_addr
= 1;
1641 p
= strchr( (end
) ? end
: p
, ',');
1643 *p
= 0; /* terminate last option */
1652 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
1655 tt
= (double)total_time
/ 1000000.0;
1658 if (total_bytes
< 1)
1660 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1661 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
1662 tt
, (int)(total_lines
/ tt
),
1663 total_bytes
/ tt
/ 1000000.0);
1666 /* set CONFIG_TCCDIR at runtime */
1667 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1669 tcc_free(s
->tcc_lib_path
);
1670 s
->tcc_lib_path
= tcc_strdup(path
);
1673 PUB_FUNC
void set_num_callers(int n
)
1675 #ifdef CONFIG_TCC_BACKTRACE
1681 LIBTCCAPI
const char *tcc_default_target(TCCState
*s
)
1683 /* FIXME will break in multithreaded case */
1684 static char outfile_default
[1024];
1688 strcmp(s
->input_files
[0], "-") == 0 ? "a"
1689 : tcc_basename(s
->input_files
[0]);
1690 pstrcpy(outfile_default
, sizeof(outfile_default
), name
);
1691 ext
= tcc_fileextension(outfile_default
);
1692 #ifdef TCC_TARGET_PE
1693 if (s
->output_type
== TCC_OUTPUT_DLL
)
1694 strcpy(ext
, ".dll");
1696 if (s
->output_type
== TCC_OUTPUT_EXE
)
1697 strcpy(ext
, ".exe");
1700 if (( (s
->output_type
== TCC_OUTPUT_OBJ
&& !s
->reloc_output
) ||
1701 (s
->output_type
== TCC_OUTPUT_PREPROCESS
) )
1705 pstrcpy(outfile_default
, sizeof(outfile_default
), "a.out");
1707 return outfile_default
;
1711 LIBTCCAPI
void tcc_gen_makedeps(TCCState
*s
, const char *target
, const char *filename
)
1714 char buf
[1024], *ext
;
1718 target
= tcc_default_target(s
);
1721 /* compute filename automatically
1722 * dir/file.o -> dir/file.d */
1723 pstrcpy(buf
, sizeof(buf
), target
);
1724 ext
= tcc_fileextension(buf
);
1725 pstrcpy(ext
, sizeof(buf
) - (ext
-buf
), ".d");
1730 printf("<- %s\n", filename
);
1732 /* XXX return err codes instead of error() ? */
1733 depout
= fopen(filename
, "w");
1735 error("could not open '%s'", filename
);
1737 fprintf(depout
, "%s : \\\n", target
);
1738 for (i
=0; i
<s
->nb_target_deps
; ++i
)
1739 fprintf(depout
, "\t%s \\\n", s
->target_deps
[i
]);
1740 fprintf(depout
, "\n");