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 #ifdef CONFIG_TCC_BACKTRACE
36 ST_DATA
int num_callers
= 6;
37 ST_DATA
const char **rt_bound_error_msg
;
38 ST_DATA
void *rt_prog_main
;
41 /********************************************************/
48 #ifdef TCC_TARGET_I386
57 #ifdef TCC_TARGET_X86_64
58 #include "x86_64-gen.c"
62 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
66 #ifdef TCC_TARGET_COFF
72 #endif /* ALL_IN_ONE */
74 /********************************************************/
75 #ifndef CONFIG_TCC_ASM
76 ST_FUNC
void asm_instr(void)
78 error("inline asm() not supported");
80 ST_FUNC
void asm_global_instr(void)
82 error("inline asm() not supported");
86 /********************************************************/
89 static char *normalize_slashes(char *path
)
92 for (p
= path
; *p
; ++p
)
98 static HMODULE tcc_module
;
100 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
101 static void tcc_set_lib_path_w32(TCCState
*s
)
104 GetModuleFileNameA(tcc_module
, path
, sizeof path
);
105 p
= tcc_basename(normalize_slashes(strlwr(path
)));
106 if (p
- 5 > path
&& 0 == strncmp(p
- 5, "/bin/", 5))
111 tcc_set_lib_path(s
, path
);
114 #ifndef CONFIG_TCC_STATIC
115 void dlclose(void *p
)
117 FreeLibrary((HMODULE
)p
);
122 BOOL WINAPI
DllMain (HANDLE hDll
, DWORD dwReason
, LPVOID lpReserved
)
124 if (DLL_PROCESS_ATTACH
== dwReason
)
131 /********************************************************/
132 /* copy a string and truncate it. */
133 PUB_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
140 q_end
= buf
+ buf_size
- 1;
152 /* strcat and truncate. */
153 PUB_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
158 pstrcpy(buf
+ len
, buf_size
- len
, s
);
162 /* extract the basename of a file */
163 PUB_FUNC
char *tcc_basename(const char *name
)
165 char *p
= strchr(name
, 0);
166 while (p
> name
&& !IS_PATHSEP(p
[-1]))
171 PUB_FUNC
char *tcc_fileextension (const char *name
)
173 char *b
= tcc_basename(name
);
174 char *e
= strrchr(b
, '.');
175 return e
? e
: strchr(b
, 0);
178 /********************************************************/
179 /* memory management */
188 unsigned malloc_usable_size(void*);
191 PUB_FUNC
void tcc_free(void *ptr
)
194 mem_cur_size
-= malloc_usable_size(ptr
);
199 PUB_FUNC
void *tcc_malloc(unsigned long size
)
204 error("memory full");
206 mem_cur_size
+= malloc_usable_size(ptr
);
207 if (mem_cur_size
> mem_max_size
)
208 mem_max_size
= mem_cur_size
;
213 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
216 ptr
= tcc_malloc(size
);
217 memset(ptr
, 0, size
);
221 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
225 mem_cur_size
-= malloc_usable_size(ptr
);
227 ptr1
= realloc(ptr
, size
);
229 /* NOTE: count not correct if alloc error, but not critical */
230 mem_cur_size
+= malloc_usable_size(ptr1
);
231 if (mem_cur_size
> mem_max_size
)
232 mem_max_size
= mem_cur_size
;
237 PUB_FUNC
char *tcc_strdup(const char *str
)
240 ptr
= tcc_malloc(strlen(str
) + 1);
245 PUB_FUNC
void tcc_memstats(void)
248 printf("memory in use: %d\n", mem_cur_size
);
252 #define free(p) use_tcc_free(p)
253 #define malloc(s) use_tcc_malloc(s)
254 #define realloc(p, s) use_tcc_realloc(p, s)
256 /********************************************************/
259 PUB_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
266 /* every power of two we double array size */
267 if ((nb
& (nb
- 1)) == 0) {
272 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
274 error("memory full");
281 PUB_FUNC
void dynarray_reset(void *pp
, int *n
)
284 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
287 tcc_free(*(void**)pp
);
291 /* we use our own 'finite' function to avoid potential problems with
292 non standard math libs */
293 /* XXX: endianness dependent */
294 ST_FUNC
int ieee_finite(double d
)
297 return ((unsigned)((p
[1] | 0x800fffff) + 1)) >> 31;
300 /********************************************************/
302 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
306 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
307 strcpy(sec
->name
, name
);
308 sec
->sh_type
= sh_type
;
309 sec
->sh_flags
= sh_flags
;
317 sec
->sh_addralign
= 4;
320 sec
->sh_addralign
= 1;
323 sec
->sh_addralign
= 32; /* default conservative alignment */
327 if (sh_flags
& SHF_PRIVATE
) {
328 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
330 sec
->sh_num
= s1
->nb_sections
;
331 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
337 static void free_section(Section
*s
)
342 /* realloc section and set its content to zero */
343 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
348 size
= sec
->data_allocated
;
351 while (size
< new_size
)
353 data
= tcc_realloc(sec
->data
, size
);
355 error("memory full");
356 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
358 sec
->data_allocated
= size
;
361 /* reserve at least 'size' bytes in section 'sec' from
363 ST_FUNC
void *section_ptr_add(Section
*sec
, unsigned long size
)
365 unsigned long offset
, offset1
;
367 offset
= sec
->data_offset
;
368 offset1
= offset
+ size
;
369 if (offset1
> sec
->data_allocated
)
370 section_realloc(sec
, offset1
);
371 sec
->data_offset
= offset1
;
372 return sec
->data
+ offset
;
375 /* reserve at least 'size' bytes from section start */
376 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
378 if (size
> sec
->data_allocated
)
379 section_realloc(sec
, size
);
380 if (size
> sec
->data_offset
)
381 sec
->data_offset
= size
;
384 /* return a reference to a section, and create it if it does not
386 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
390 for(i
= 1; i
< s1
->nb_sections
; i
++) {
391 sec
= s1
->sections
[i
];
392 if (!strcmp(name
, sec
->name
))
395 /* sections are created as PROGBITS */
396 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
399 /* update sym->c so that it points to an external symbol in section
400 'section' with value 'value' */
401 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
402 unsigned long value
, unsigned long size
,
403 int can_add_underscore
)
405 int sym_type
, sym_bind
, sh_num
, info
, other
;
412 else if (section
== SECTION_ABS
)
415 sh_num
= section
->sh_num
;
417 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
419 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
420 sym_type
= STT_NOTYPE
;
422 sym_type
= STT_OBJECT
;
425 if (sym
->type
.t
& VT_STATIC
)
426 sym_bind
= STB_LOCAL
;
428 if (FUNC_WEAK(sym
->type
.ref
->r
))
431 sym_bind
= STB_GLOBAL
;
435 name
= get_tok_str(sym
->v
, NULL
);
436 #ifdef CONFIG_TCC_BCHECK
437 if (tcc_state
->do_bounds_check
) {
440 /* XXX: avoid doing that for statics ? */
441 /* if bound checking is activated, we change some function
442 names by adding the "__bound" prefix */
445 /* XXX: we rely only on malloc hooks */
458 strcpy(buf
, "__bound_");
468 if (sym
->type
.t
& VT_EXPORT
)
470 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
471 int attr
= sym
->type
.ref
->r
;
472 if (FUNC_EXPORT(attr
))
474 if (FUNC_CALL(attr
) == FUNC_STDCALL
&& can_add_underscore
) {
475 sprintf(buf1
, "_%s@%d", name
, FUNC_ARGS(attr
) * PTR_SIZE
);
478 can_add_underscore
= 0;
481 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
483 if (sym
->type
.t
& VT_IMPORT
)
487 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
489 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
492 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
493 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
495 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
496 esym
->st_value
= value
;
497 esym
->st_size
= size
;
498 esym
->st_shndx
= sh_num
;
502 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
503 unsigned long value
, unsigned long size
)
505 put_extern_sym2(sym
, section
, value
, size
, 1);
508 /* add a new relocation entry to symbol 'sym' in section 's' */
509 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
514 put_extern_sym(sym
, NULL
, 0, 0);
517 /* now we can add ELF relocation info */
518 put_elf_reloc(symtab_section
, s
, offset
, type
, c
);
521 /********************************************************/
523 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
527 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
530 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
534 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
538 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
545 for(f
= s1
->include_stack
; f
< s1
->include_stack_ptr
; f
++)
546 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
547 (*f
)->filename
, (*f
)->line_num
);
548 if (file
->line_num
> 0) {
549 strcat_printf(buf
, sizeof(buf
),
550 "%s:%d: ", file
->filename
, file
->line_num
);
552 strcat_printf(buf
, sizeof(buf
),
553 "%s: ", file
->filename
);
556 strcat_printf(buf
, sizeof(buf
),
560 strcat_printf(buf
, sizeof(buf
), "warning: ");
562 strcat_printf(buf
, sizeof(buf
), "error: ");
563 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
565 if (!s1
->error_func
) {
566 /* default case: stderr */
567 fprintf(stderr
, "%s\n", buf
);
569 s1
->error_func(s1
->error_opaque
, buf
);
571 if (!is_warning
|| s1
->warn_error
)
575 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
576 void (*error_func
)(void *opaque
, const char *msg
))
578 s
->error_opaque
= error_opaque
;
579 s
->error_func
= error_func
;
582 /* error without aborting current compilation */
583 PUB_FUNC
void error_noabort(const char *fmt
, ...)
585 TCCState
*s1
= tcc_state
;
589 error1(s1
, 0, fmt
, ap
);
593 PUB_FUNC
void error(const char *fmt
, ...)
595 TCCState
*s1
= tcc_state
;
599 error1(s1
, 0, fmt
, ap
);
601 /* better than nothing: in some cases, we accept to handle errors */
602 if (s1
->error_set_jmp_enabled
) {
603 longjmp(s1
->error_jmp_buf
, 1);
605 /* XXX: eliminate this someday */
610 PUB_FUNC
void expect(const char *msg
)
612 error("%s expected", msg
);
615 PUB_FUNC
void warning(const char *fmt
, ...)
617 TCCState
*s1
= tcc_state
;
624 error1(s1
, 1, fmt
, ap
);
628 /********************************************************/
631 ST_FUNC BufferedFile
*tcc_open(TCCState
*s1
, const char *filename
)
636 if (strcmp(filename
, "-") == 0)
637 fd
= 0, filename
= "stdin";
639 fd
= open(filename
, O_RDONLY
| O_BINARY
);
640 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
641 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
642 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
645 bf
= tcc_malloc(sizeof(BufferedFile
));
647 bf
->buf_ptr
= bf
->buffer
;
648 bf
->buf_end
= bf
->buffer
;
649 bf
->buffer
[0] = CH_EOB
; /* put eob symbol */
650 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
652 normalize_slashes(bf
->filename
);
655 bf
->ifndef_macro
= 0;
656 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
657 // printf("opening '%s'\n", filename);
661 ST_FUNC
void tcc_close(BufferedFile
*bf
)
663 total_lines
+= bf
->line_num
;
668 /* compile the C file opened in 'file'. Return non zero if errors. */
669 static int tcc_compile(TCCState
*s1
)
673 volatile int section_sym
;
676 printf("%s: **** new file\n", file
->filename
);
680 cur_text_section
= NULL
;
682 anon_sym
= SYM_FIRST_ANOM
;
684 /* file info: full path + filename */
685 section_sym
= 0; /* avoid warning */
687 section_sym
= put_elf_sym(symtab_section
, 0, 0,
688 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
689 text_section
->sh_num
, NULL
);
690 getcwd(buf
, sizeof(buf
));
692 normalize_slashes(buf
);
694 pstrcat(buf
, sizeof(buf
), "/");
695 put_stabs_r(buf
, N_SO
, 0, 0,
696 text_section
->data_offset
, text_section
, section_sym
);
697 put_stabs_r(file
->filename
, N_SO
, 0, 0,
698 text_section
->data_offset
, text_section
, section_sym
);
700 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
701 symbols can be safely used */
702 put_elf_sym(symtab_section
, 0, 0,
703 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
704 SHN_ABS
, file
->filename
);
706 /* define some often used types */
709 char_pointer_type
.t
= VT_BYTE
;
710 mk_pointer(&char_pointer_type
);
712 func_old_type
.t
= VT_FUNC
;
713 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
715 #if defined(TCC_ARM_EABI) && defined(TCC_ARM_VFP)
716 float_type
.t
= VT_FLOAT
;
717 double_type
.t
= VT_DOUBLE
;
719 func_float_type
.t
= VT_FUNC
;
720 func_float_type
.ref
= sym_push(SYM_FIELD
, &float_type
, FUNC_CDECL
, FUNC_OLD
);
721 func_double_type
.t
= VT_FUNC
;
722 func_double_type
.ref
= sym_push(SYM_FIELD
, &double_type
, FUNC_CDECL
, FUNC_OLD
);
726 /* define 'void *alloca(unsigned int)' builtin function */
731 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
732 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
735 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
739 define_start
= define_stack
;
742 if (setjmp(s1
->error_jmp_buf
) == 0) {
744 s1
->error_set_jmp_enabled
= 1;
746 ch
= file
->buf_ptr
[0];
747 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
748 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
;
752 expect("declaration");
754 /* end of translation unit info */
756 put_stabs_r(NULL
, N_SO
, 0, 0,
757 text_section
->data_offset
, text_section
, section_sym
);
760 s1
->error_set_jmp_enabled
= 0;
762 /* reset define stack, but leave -Dsymbols (may be incorrect if
763 they are undefined) */
764 free_defines(define_start
);
766 gen_inline_functions();
768 sym_pop(&global_stack
, NULL
);
769 sym_pop(&local_stack
, NULL
);
771 return s1
->nb_errors
!= 0 ? -1 : 0;
774 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
776 BufferedFile bf1
, *bf
= &bf1
;
780 /* init file structure */
782 /* XXX: avoid copying */
784 buf
= tcc_malloc(len
+ 1);
787 memcpy(buf
, str
, len
);
790 bf
->buf_end
= buf
+ len
;
791 pstrcpy(bf
->filename
, sizeof(bf
->filename
), "<string>");
794 ret
= tcc_compile(s
);
798 /* currently, no need to close */
802 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
803 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
805 BufferedFile bf1
, *bf
= &bf1
;
807 pstrcpy(bf
->buffer
, IO_BUF_SIZE
, sym
);
808 pstrcat(bf
->buffer
, IO_BUF_SIZE
, " ");
812 pstrcat(bf
->buffer
, IO_BUF_SIZE
, value
);
814 /* init file structure */
816 bf
->buf_ptr
= bf
->buffer
;
817 bf
->buf_end
= bf
->buffer
+ strlen(bf
->buffer
);
818 *bf
->buf_end
= CH_EOB
;
819 bf
->filename
[0] = '\0';
823 s1
->include_stack_ptr
= s1
->include_stack
;
825 /* parse with define parser */
826 ch
= file
->buf_ptr
[0];
832 /* undefine a preprocessor symbol */
833 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
837 ts
= tok_alloc(sym
, strlen(sym
));
838 s
= define_find(ts
->tok
);
839 /* undefine symbol by putting an invalid name */
844 static void tcc_cleanup(void)
848 if (NULL
== tcc_state
)
852 /* free -D defines */
856 n
= tok_ident
- TOK_IDENT
;
857 for(i
= 0; i
< n
; i
++)
858 tcc_free(table_ident
[i
]);
859 tcc_free(table_ident
);
862 dynarray_reset(&sym_pools
, &nb_sym_pools
);
865 /* reset symbol stack */
866 sym_free_first
= NULL
;
867 /* cleanup from error/setjmp */
871 LIBTCCAPI TCCState
*tcc_new(void)
879 s
= tcc_mallocz(sizeof(TCCState
));
884 tcc_set_lib_path_w32(s
);
886 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
888 s
->output_type
= TCC_OUTPUT_MEMORY
;
891 /* we add dummy defines for some special macros to speed up tests
892 and to have working defined() */
893 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
894 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
895 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
896 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
898 /* standard defines */
899 tcc_define_symbol(s
, "__STDC__", NULL
);
900 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
901 #if defined(TCC_TARGET_I386)
902 tcc_define_symbol(s
, "__i386__", NULL
);
903 tcc_define_symbol(s
, "__i386", NULL
);
904 tcc_define_symbol(s
, "i386", NULL
);
906 #if defined(TCC_TARGET_X86_64)
907 tcc_define_symbol(s
, "__x86_64__", NULL
);
909 #if defined(TCC_TARGET_ARM)
910 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
911 tcc_define_symbol(s
, "__arm_elf__", NULL
);
912 tcc_define_symbol(s
, "__arm_elf", NULL
);
913 tcc_define_symbol(s
, "arm_elf", NULL
);
914 tcc_define_symbol(s
, "__arm__", NULL
);
915 tcc_define_symbol(s
, "__arm", NULL
);
916 tcc_define_symbol(s
, "arm", NULL
);
917 tcc_define_symbol(s
, "__APCS_32__", NULL
);
920 tcc_define_symbol(s
, "_WIN32", NULL
);
921 #ifdef TCC_TARGET_X86_64
922 tcc_define_symbol(s
, "_WIN64", NULL
);
925 tcc_define_symbol(s
, "__unix__", NULL
);
926 tcc_define_symbol(s
, "__unix", NULL
);
927 tcc_define_symbol(s
, "unix", NULL
);
928 #if defined(__FreeBSD__)
930 tcc_define_symbol(s
, "__FreeBSD__", str( __FreeBSD__
));
934 tcc_define_symbol(s
, "__linux__", NULL
);
935 tcc_define_symbol(s
, "__linux", NULL
);
938 /* tiny C specific defines */
939 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
940 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
941 tcc_define_symbol(s
, "__TINYC__", buffer
);
943 /* tiny C & gcc defines */
944 #if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64
945 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
946 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
948 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
949 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
953 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
955 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
958 #ifndef TCC_TARGET_PE
959 /* default library paths */
960 # if defined(TCC_TARGET_X86_64_CENTOS)
961 tcc_add_library_path(s
, CONFIG_SYSROOT
"/usr/lib64");
962 tcc_add_library_path(s
, CONFIG_SYSROOT
"/lib64");
963 tcc_add_library_path(s
, CONFIG_SYSROOT
"/usr/local/lib64");
965 tcc_add_library_path(s
, CONFIG_SYSROOT
"/usr/lib");
966 tcc_add_library_path(s
, CONFIG_SYSROOT
"/lib");
967 tcc_add_library_path(s
, CONFIG_SYSROOT
"/usr/local/lib");
971 /* no section zero */
972 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
974 /* create standard sections */
975 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
976 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
977 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
979 /* symbols are always generated for linking stage */
980 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
982 ".hashtab", SHF_PRIVATE
);
983 strtab_section
= symtab_section
->link
;
985 /* private symbol table for dynamic symbols */
986 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
988 ".dynhashtab", SHF_PRIVATE
);
989 s
->alacarte_link
= 1;
992 #ifdef CHAR_IS_UNSIGNED
993 s
->char_is_unsigned
= 1;
995 #if defined(TCC_TARGET_PE) && 0
996 /* XXX: currently the PE linker is not ready to support that */
997 s
->leading_underscore
= 1;
999 if (s
->section_align
== 0)
1000 s
->section_align
= ELF_PAGE_SIZE
;
1001 #ifdef TCC_TARGET_I386
1007 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1013 /* free all sections */
1014 for(i
= 1; i
< s1
->nb_sections
; i
++)
1015 free_section(s1
->sections
[i
]);
1016 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1018 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1019 free_section(s1
->priv_sections
[i
]);
1020 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1022 /* free any loaded DLLs */
1023 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1024 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1026 dlclose(ref
->handle
);
1029 /* free loaded dlls array */
1030 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1032 /* free library paths */
1033 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1035 /* free include paths */
1036 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1037 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1038 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1040 tcc_free(s1
->tcc_lib_path
);
1041 tcc_free(s1
->runtime_mem
);
1045 LIBTCCAPI
int tcc_add_include_path(TCCState
*s1
, const char *pathname
)
1049 pathname1
= tcc_strdup(pathname
);
1050 dynarray_add((void ***)&s1
->include_paths
, &s1
->nb_include_paths
, pathname1
);
1054 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s1
, const char *pathname
)
1058 pathname1
= tcc_strdup(pathname
);
1059 dynarray_add((void ***)&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
, pathname1
);
1063 static int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1068 BufferedFile
*saved_file
;
1072 /* find source file type with extension */
1073 ext
= tcc_fileextension(filename
);
1079 file
= tcc_open(s1
, filename
);
1081 if (flags
& AFF_PRINT_ERROR
)
1082 error_noabort("file '%s' not found", filename
);
1086 if (flags
& AFF_PREPROCESS
) {
1087 ret
= tcc_preprocess(s1
);
1091 if (!ext
[0] || !PATHCMP(ext
, "c")) {
1092 /* C file assumed */
1093 ret
= tcc_compile(s1
);
1097 #ifdef CONFIG_TCC_ASM
1098 if (!strcmp(ext
, "S")) {
1099 /* preprocessed assembler */
1100 ret
= tcc_assemble(s1
, 1);
1104 if (!strcmp(ext
, "s")) {
1105 /* non preprocessed assembler */
1106 ret
= tcc_assemble(s1
, 0);
1112 /* assume executable format: auto guess file type */
1113 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1114 lseek(fd
, 0, SEEK_SET
);
1116 error_noabort("could not read header");
1120 if (size
== sizeof(ehdr
) &&
1121 ehdr
.e_ident
[0] == ELFMAG0
&&
1122 ehdr
.e_ident
[1] == ELFMAG1
&&
1123 ehdr
.e_ident
[2] == ELFMAG2
&&
1124 ehdr
.e_ident
[3] == ELFMAG3
) {
1126 /* do not display line number if error */
1128 if (ehdr
.e_type
== ET_REL
) {
1129 ret
= tcc_load_object_file(s1
, fd
, 0);
1133 #ifndef TCC_TARGET_PE
1134 if (ehdr
.e_type
== ET_DYN
) {
1135 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1137 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1141 ret
= tcc_load_dll(s1
, fd
, filename
,
1142 (flags
& AFF_REFERENCED_DLL
) != 0);
1147 error_noabort("unrecognized ELF file");
1151 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1152 file
->line_num
= 0; /* do not display line number if error */
1153 ret
= tcc_load_archive(s1
, fd
);
1157 #ifdef TCC_TARGET_COFF
1158 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1159 ret
= tcc_load_coff(s1
, fd
);
1164 #ifdef TCC_TARGET_PE
1165 ret
= pe_load_file(s1
, filename
, fd
);
1167 /* as GNU ld, consider it is an ld script if not recognized */
1168 ret
= tcc_load_ldscript(s1
);
1171 error_noabort("unrecognized file type");
1180 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1182 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1183 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
);
1185 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
);
1188 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1192 pathname1
= tcc_strdup(pathname
);
1193 dynarray_add((void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname1
);
1197 /* find and load a dll. Return non zero if not found */
1198 /* XXX: add '-rpath' option support ? */
1199 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1204 for(i
= 0; i
< s
->nb_library_paths
; i
++) {
1205 snprintf(buf
, sizeof(buf
), "%s/%s",
1206 s
->library_paths
[i
], filename
);
1207 if (tcc_add_file_internal(s
, buf
, flags
) == 0)
1213 /* the library name is the same as the argument of the '-l' option */
1214 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1219 /* first we look for the dynamic library if not static linking */
1220 if (!s
->static_link
) {
1221 #ifdef TCC_TARGET_PE
1222 if (pe_add_dll(s
, libraryname
) == 0)
1225 snprintf(buf
, sizeof(buf
), "lib%s.so", libraryname
);
1226 if (tcc_add_dll(s
, buf
, 0) == 0)
1230 /* then we look for the static library */
1231 for(i
= 0; i
< s
->nb_library_paths
; i
++) {
1232 snprintf(buf
, sizeof(buf
), "%s/lib%s.a",
1233 s
->library_paths
[i
], libraryname
);
1234 if (tcc_add_file_internal(s
, buf
, 0) == 0)
1240 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1242 #ifdef TCC_TARGET_PE
1243 pe_putimport(s
, 0, name
, val
);
1245 add_elf_sym(symtab_section
, (uplong
)val
, 0,
1246 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1252 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1256 s
->output_type
= output_type
;
1259 /* default include paths */
1260 /* XXX: reverse order needed if -isystem support */
1261 #ifndef TCC_TARGET_PE
1262 tcc_add_sysinclude_path(s
, CONFIG_SYSROOT
"/usr/local/include");
1263 tcc_add_sysinclude_path(s
, CONFIG_SYSROOT
"/usr/include");
1265 snprintf(buf
, sizeof(buf
), "%s/include", s
->tcc_lib_path
);
1266 tcc_add_sysinclude_path(s
, buf
);
1267 #ifdef TCC_TARGET_PE
1268 snprintf(buf
, sizeof(buf
), "%s/include/winapi", s
->tcc_lib_path
);
1269 tcc_add_sysinclude_path(s
, buf
);
1273 /* if bound checking, then add corresponding sections */
1274 #ifdef CONFIG_TCC_BCHECK
1275 if (s
->do_bounds_check
) {
1277 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1278 /* create bounds sections */
1279 bounds_section
= new_section(s
, ".bounds",
1280 SHT_PROGBITS
, SHF_ALLOC
);
1281 lbounds_section
= new_section(s
, ".lbounds",
1282 SHT_PROGBITS
, SHF_ALLOC
);
1286 if (s
->char_is_unsigned
) {
1287 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1290 /* add debug sections */
1293 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1294 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1295 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1296 put_elf_str(stabstr_section
, "");
1297 stab_section
->link
= stabstr_section
;
1298 /* put first entry */
1299 put_stabs("", 0, 0, 0, 0);
1302 /* add libc crt1/crti objects */
1303 #ifndef TCC_TARGET_PE
1304 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1306 if (output_type
!= TCC_OUTPUT_DLL
)
1307 tcc_add_file(s
, CONFIG_TCC_CRT_PREFIX
"/crt1.o");
1308 tcc_add_file(s
, CONFIG_TCC_CRT_PREFIX
"/crti.o");
1312 #ifdef TCC_TARGET_PE
1313 snprintf(buf
, sizeof(buf
), "%s/lib", s
->tcc_lib_path
);
1314 tcc_add_library_path(s
, buf
);
1316 if (GetSystemDirectory(buf
, sizeof buf
))
1317 tcc_add_library_path(s
, buf
);
1324 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1325 #define FD_INVERT 0x0002 /* invert value before storing */
1327 typedef struct FlagDef
{
1333 static const FlagDef warning_defs
[] = {
1334 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1335 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1336 { offsetof(TCCState
, warn_error
), 0, "error" },
1337 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1338 "implicit-function-declaration" },
1341 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1342 const char *name
, int value
)
1349 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1353 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1354 if (!strcmp(r
, p
->name
))
1359 if (p
->flags
& FD_INVERT
)
1361 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1365 /* set/reset a warning */
1366 LIBTCCAPI
int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1371 if (!strcmp(warning_name
, "all")) {
1372 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1373 if (p
->flags
& WD_ALL
)
1374 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1378 return set_flag(s
, warning_defs
, countof(warning_defs
),
1379 warning_name
, value
);
1383 static const FlagDef flag_defs
[] = {
1384 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1385 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1386 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1387 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1390 /* set/reset a flag */
1391 PUB_FUNC
int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1393 return set_flag(s
, flag_defs
, countof(flag_defs
),
1397 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
1400 tt
= (double)total_time
/ 1000000.0;
1403 if (total_bytes
< 1)
1405 printf("%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
1406 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
1407 tt
, (int)(total_lines
/ tt
),
1408 total_bytes
/ tt
/ 1000000.0);
1411 /* set CONFIG_TCCDIR at runtime */
1412 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1414 tcc_free(s
->tcc_lib_path
);
1415 s
->tcc_lib_path
= tcc_strdup(path
);
1418 PUB_FUNC
void set_num_callers(int n
)
1420 #ifdef CONFIG_TCC_BACKTRACE