Even on Darwin, tcc should display Linux
[tinycc.git] / tcc.h
blobb575bb758e69a6c82437afa069f17c8143928ec6
1 /*
2 * TCC - Tiny C Compiler
3 *
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 #ifndef _TCC_H
22 #define _TCC_H
24 #define _GNU_SOURCE
25 #include "config.h"
27 #include <stdlib.h>
28 #include <stdio.h>
29 #include <stdarg.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <math.h>
33 #include <fcntl.h>
34 #include <setjmp.h>
35 #include <time.h>
37 #ifndef _WIN32
38 # include <unistd.h>
39 # include <sys/time.h>
40 # ifndef CONFIG_TCC_STATIC
41 # include <dlfcn.h>
42 # endif
43 /* XXX: need to define this to use them in non ISOC99 context */
44 extern float strtof (const char *__nptr, char **__endptr);
45 extern long double strtold (const char *__nptr, char **__endptr);
47 #else /* on _WIN32: */
48 # include <windows.h>
49 # include <io.h> /* open, close etc. */
50 # include <direct.h> /* getcwd */
51 # ifdef __GNUC__
52 # include <stdint.h>
53 # endif
54 # define inline __inline
55 # define inp next_inp /* inp is an intrinsic on msvc */
56 # define snprintf _snprintf
57 # define vsnprintf _vsnprintf
58 # ifndef __GNUC__
59 # define strtold (long double)strtod
60 # define strtof (float)strtod
61 # define strtoll _strtoi64
62 # define strtoull _strtoui64
63 # endif
64 # ifdef LIBTCC_AS_DLL
65 # define LIBTCCAPI __declspec(dllexport)
66 # define PUB_FUNC LIBTCCAPI
67 # endif
68 # ifdef _MSC_VER
69 # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data
70 # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data
71 # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
72 # pragma warning (disable : 4018) // signed/unsigned mismatch
73 # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned
74 # define ssize_t intptr_t
75 # define __attribute__(x) __declspec x
76 # define aligned align
77 # else
78 # endif
79 # undef CONFIG_TCC_STATIC
80 #endif
82 #ifndef O_BINARY
83 # define O_BINARY 0
84 #endif
86 #ifdef __GNUC__
87 # define NORETURN __attribute__ ((noreturn))
88 #elif defined _MSC_VER
89 # define NORETURN __declspec(noreturn)
90 #else
91 # define NORETURN
92 #endif
94 #ifdef _WIN32
95 # define IS_DIRSEP(c) (c == '/' || c == '\\')
96 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
97 # define PATHCMP stricmp
98 #else
99 # define IS_DIRSEP(c) (c == '/')
100 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
101 # define PATHCMP strcmp
102 #endif
104 #ifdef TCC_TARGET_PE
105 #define PATHSEP ';'
106 #else
107 #define PATHSEP ':'
108 #endif
110 /* -------------------------------------------- */
112 /* parser debug */
113 /* #define PARSE_DEBUG */
114 /* preprocessor debug */
115 /* #define PP_DEBUG */
116 /* include file debug */
117 /* #define INC_DEBUG */
118 /* memory leak debug */
119 /* #define MEM_DEBUG */
120 /* assembler debug */
121 /* #define ASM_DEBUG */
123 /* target selection */
124 /* #define TCC_TARGET_I386 *//* i386 code generator */
125 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
126 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
127 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
128 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
130 /* default target is I386 */
131 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
132 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
133 !defined(TCC_TARGET_X86_64)
134 #define TCC_TARGET_I386
135 #endif
137 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
138 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
139 !defined(CONFIG_USE_LIBGCC)
140 #define CONFIG_TCC_BCHECK /* enable bound checking code */
141 #endif
143 /* define it to include assembler support */
144 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
145 !defined(TCC_TARGET_C67)
146 #define CONFIG_TCC_ASM
147 #endif
149 /* object format selection */
150 #if defined(TCC_TARGET_C67)
151 #define TCC_TARGET_COFF
152 #endif
154 /* only native compiler supports -run */
155 #if defined _WIN32 == defined TCC_TARGET_PE
156 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
157 # define TCC_IS_NATIVE
158 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
159 # define TCC_IS_NATIVE
160 # elif defined __arm__ && defined TCC_TARGET_ARM
161 # define TCC_IS_NATIVE
162 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
163 # define TCC_IS_NATIVE
164 # endif
165 #endif
167 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
168 # define CONFIG_TCC_BACKTRACE
169 #endif
171 /* ------------ path configuration ------------ */
173 #ifndef CONFIG_SYSROOT
174 # define CONFIG_SYSROOT ""
175 #endif
176 #ifndef CONFIG_TCCDIR
177 # define CONFIG_TCCDIR "."
178 #endif
179 #ifndef CONFIG_LDDIR
180 # define CONFIG_LDDIR "lib"
181 #endif
182 #ifdef CONFIG_TRIPLET
183 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
184 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
185 #else
186 # define USE_TRIPLET(s) s
187 # define ALSO_TRIPLET(s) s
188 #endif
190 /* path to find crt1.o, crti.o and crtn.o */
191 #ifndef CONFIG_TCC_CRTPREFIX
192 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
193 #endif
195 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
197 /* system include paths */
198 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
199 # ifdef TCC_TARGET_PE
200 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
201 # else
202 # define CONFIG_TCC_SYSINCLUDEPATHS \
203 "{B}/include" \
204 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
205 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/include")
206 # endif
207 #endif
209 /* library search paths */
210 #ifndef CONFIG_TCC_LIBPATHS
211 # ifdef TCC_TARGET_PE
212 # define CONFIG_TCC_LIBPATHS "{B}/lib"
213 # else
214 # define CONFIG_TCC_LIBPATHS \
215 ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
216 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
217 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
218 # endif
219 #endif
221 /* name of ELF interpreter */
222 #ifndef CONFIG_TCC_ELFINTERP
223 # if defined __FreeBSD__
224 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
225 # elif defined __FreeBSD_kernel__
226 # if defined(TCC_TARGET_X86_64)
227 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
228 # else
229 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
230 # endif
231 # elif defined __DragonFly__
232 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
233 # elif defined __NetBSD__
234 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
235 # elif defined __GNU__
236 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
237 # elif defined(TCC_TARGET_PE)
238 # define CONFIG_TCC_ELFINTERP "-"
239 # elif defined(TCC_UCLIBC)
240 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
241 # elif defined TCC_TARGET_ARM64
242 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
243 # elif defined(TCC_TARGET_X86_64)
244 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
245 # elif !defined(TCC_ARM_EABI)
246 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
247 # endif
248 #endif
250 /* var elf_interp dans *-gen.c */
251 #ifdef CONFIG_TCC_ELFINTERP
252 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
253 #else
254 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
255 #endif
257 /* (target specific) libtcc1.a */
258 #ifndef TCC_LIBTCC1
259 # define TCC_LIBTCC1 "libtcc1.a"
260 #endif
262 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
263 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
264 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
265 #endif
267 /* -------------------------------------------- */
269 #include "libtcc.h"
270 #include "elf.h"
271 #include "stab.h"
273 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
274 # define ELFCLASSW ELFCLASS64
275 # define ElfW(type) Elf##64##_##type
276 # define ELFW(type) ELF##64##_##type
277 # define ElfW_Rel ElfW(Rela)
278 # define SHT_RELX SHT_RELA
279 # define REL_SECTION_FMT ".rela%s"
280 #else
281 # define ELFCLASSW ELFCLASS32
282 # define ElfW(type) Elf##32##_##type
283 # define ELFW(type) ELF##32##_##type
284 # define ElfW_Rel ElfW(Rel)
285 # define SHT_RELX SHT_REL
286 # define REL_SECTION_FMT ".rel%s"
287 #endif
288 /* target address type */
289 #define addr_t ElfW(Addr)
291 /* -------------------------------------------- */
293 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
294 # define PUB_FUNC
295 #endif
297 #ifdef ONE_SOURCE
298 #define ST_INLN static inline
299 #define ST_FUNC static
300 #define ST_DATA static
301 #else
302 #define ST_INLN
303 #define ST_FUNC
304 #define ST_DATA extern
305 #endif
307 #ifdef TCC_PROFILE /* profile all functions */
308 # define static
309 #endif
311 /* -------------------------------------------- */
312 /* include the target specific definitions */
314 #define TARGET_DEFS_ONLY
315 #ifdef TCC_TARGET_I386
316 # include "i386-gen.c"
317 # include "i386-link.c"
318 #endif
319 #ifdef TCC_TARGET_X86_64
320 # include "x86_64-gen.c"
321 # include "x86_64-link.c"
322 #endif
323 #ifdef TCC_TARGET_ARM
324 # include "arm-gen.c"
325 # include "arm-link.c"
326 #endif
327 #ifdef TCC_TARGET_ARM64
328 # include "arm64-gen.c"
329 # include "arm64-link.c"
330 #endif
331 #ifdef TCC_TARGET_C67
332 # include "coff.h"
333 # include "c67-gen.c"
334 # include "c67-link.c"
335 #endif
336 #undef TARGET_DEFS_ONLY
338 /* -------------------------------------------- */
340 #define INCLUDE_STACK_SIZE 32
341 #define IFDEF_STACK_SIZE 64
342 #define VSTACK_SIZE 256
343 #define STRING_MAX_SIZE 1024
344 #define TOKSTR_MAX_SIZE 256
345 #define PACK_STACK_SIZE 8
347 #define TOK_HASH_SIZE 16384 /* must be a power of two */
348 #define TOK_ALLOC_INCR 512 /* must be a power of two */
349 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
351 /* token symbol management */
352 typedef struct TokenSym {
353 struct TokenSym *hash_next;
354 struct Sym *sym_define; /* direct pointer to define */
355 struct Sym *sym_label; /* direct pointer to label */
356 struct Sym *sym_struct; /* direct pointer to structure */
357 struct Sym *sym_identifier; /* direct pointer to identifier */
358 int tok; /* token number */
359 int len;
360 char str[1];
361 } TokenSym;
363 #ifdef TCC_TARGET_PE
364 typedef unsigned short nwchar_t;
365 #else
366 typedef int nwchar_t;
367 #endif
369 typedef struct CString {
370 int size; /* size in bytes */
371 void *data; /* either 'char *' or 'nwchar_t *' */
372 int size_allocated;
373 } CString;
375 /* type definition */
376 typedef struct CType {
377 int t;
378 struct Sym *ref;
379 } CType;
381 /* constant value */
382 typedef union CValue {
383 long double ld;
384 double d;
385 float f;
386 uint64_t i;
387 struct {
388 int size;
389 const void *data;
390 } str;
391 int tab[LDOUBLE_SIZE/4];
392 } CValue;
394 /* value on stack */
395 typedef struct SValue {
396 CType type; /* type */
397 unsigned short r; /* register + flags */
398 unsigned short r2; /* second register, used for 'long long'
399 type. If not used, set to VT_CONST */
400 CValue c; /* constant, if VT_CONST */
401 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if
402 result of unary() for an identifier. */
403 } SValue;
405 struct Attribute {
406 unsigned
407 func_call : 3, /* calling convention (0..5), see below */
408 aligned : 5, /* alignment as log2+1 (0 == unspecified) */
409 packed : 1,
410 func_export : 1,
411 func_import : 1,
412 func_args : 5,
413 func_body : 1,
414 mode : 4,
415 weak : 1,
416 visibility : 2,
417 unsigned_enum : 1,
418 fill : 7; // 7 bits left to fit well in union below
421 /* GNUC attribute definition */
422 typedef struct AttributeDef {
423 struct Attribute a;
424 struct Section *section;
425 int alias_target; /* token */
426 int asm_label; /* associated asm label */
427 } AttributeDef;
429 /* symbol management */
430 typedef struct Sym {
431 int v; /* symbol token */
432 union {
433 int asm_label; /* associated asm label */
434 int scope; /* scope level for locals */
436 union {
437 long r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
438 struct Attribute a;
440 union {
441 long c; /* associated number */
442 int *d; /* define token stream */
444 CType type; /* associated type */
445 union {
446 struct Sym *next; /* next related symbol (for fields and anoms) */
447 long jnext; /* next jump label */
449 struct Sym *prev; /* prev symbol in stack */
450 struct Sym *prev_tok; /* previous symbol for this token */
451 } Sym;
453 /* section definition */
454 /* XXX: use directly ELF structure for parameters ? */
455 /* special flag to indicate that the section should not be linked to
456 the other ones */
457 #define SHF_PRIVATE 0x80000000
459 /* special flag, too */
460 #define SECTION_ABS ((void *)1)
462 typedef struct Section {
463 unsigned long data_offset; /* current data offset */
464 unsigned char *data; /* section data */
465 unsigned long data_allocated; /* used for realloc() handling */
466 int sh_name; /* elf section name (only used during output) */
467 int sh_num; /* elf section number */
468 int sh_type; /* elf section type */
469 int sh_flags; /* elf section flags */
470 int sh_info; /* elf section info */
471 int sh_addralign; /* elf section alignment */
472 int sh_entsize; /* elf entry size */
473 unsigned long sh_size; /* section size (only used during output) */
474 addr_t sh_addr; /* address at which the section is relocated */
475 unsigned long sh_offset; /* file offset */
476 int nb_hashed_syms; /* used to resize the hash table */
477 struct Section *link; /* link to another section */
478 struct Section *reloc; /* corresponding section for relocation, if any */
479 struct Section *hash; /* hash table for symbols */
480 struct Section *prev; /* previous section on section stack */
481 char name[1]; /* section name */
482 } Section;
484 typedef struct DLLReference {
485 int level;
486 void *handle;
487 char name[1];
488 } DLLReference;
490 /* -------------------------------------------------- */
492 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
493 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
494 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
496 /* stored in 'Sym.c' field */
497 #define FUNC_NEW 1 /* ansi function prototype */
498 #define FUNC_OLD 2 /* old function prototype */
499 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
501 /* stored in 'Sym.r' field */
502 #define FUNC_CDECL 0 /* standard c call */
503 #define FUNC_STDCALL 1 /* pascal c call */
504 #define FUNC_FASTCALL1 2 /* first param in %eax */
505 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
506 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
507 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
509 /* field 'Sym.t' for macros */
510 #define MACRO_OBJ 0 /* object like macro */
511 #define MACRO_FUNC 1 /* function like macro */
513 /* field 'Sym.r' for C labels */
514 #define LABEL_DEFINED 0 /* label is defined */
515 #define LABEL_FORWARD 1 /* label is forward defined */
516 #define LABEL_DECLARED 2 /* label is declared but never used */
518 /* type_decl() types */
519 #define TYPE_ABSTRACT 1 /* type without variable */
520 #define TYPE_DIRECT 2 /* type with variable */
522 #define IO_BUF_SIZE 8192
524 typedef struct BufferedFile {
525 uint8_t *buf_ptr;
526 uint8_t *buf_end;
527 int fd;
528 struct BufferedFile *prev;
529 int line_num; /* current line number - here to simplify code */
530 int line_ref; /* tcc -E: last printed line */
531 int ifndef_macro; /* #ifndef macro / #endif search */
532 int ifndef_macro_saved; /* saved ifndef_macro */
533 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
534 int include_next_index; /* next search path */
535 char filename[1024]; /* filename */
536 unsigned char unget[4];
537 unsigned char buffer[1]; /* extra size for CH_EOB char */
538 } BufferedFile;
540 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
541 #define CH_EOF (-1) /* end of file */
543 /* parsing state (used to save parser state to reparse part of the
544 source several times) */
545 typedef struct ParseState {
546 const int *macro_ptr;
547 int line_num;
548 int tok;
549 CValue tokc;
550 } ParseState;
552 /* used to record tokens */
553 typedef struct TokenString {
554 int *str;
555 int len;
556 int allocated_len;
557 int last_line_num;
558 /* used to chain token-strings with begin/end_macro() */
559 struct TokenString *prev;
560 const int *prev_ptr;
561 char alloc;
562 } TokenString;
564 /* inline functions */
565 typedef struct InlineFunc {
566 TokenString *func_str;
567 Sym *sym;
568 char filename[1];
569 } InlineFunc;
571 /* include file cache, used to find files faster and also to eliminate
572 inclusion if the include file is protected by #ifndef ... #endif */
573 typedef struct CachedInclude {
574 int ifndef_macro;
575 int once;
576 int hash_next; /* -1 if none */
577 char filename[1]; /* path specified in #include */
578 } CachedInclude;
580 #define CACHED_INCLUDES_HASH_SIZE 32
582 #ifdef CONFIG_TCC_ASM
583 typedef struct ExprValue {
584 uint64_t v;
585 Sym *sym;
586 int pcrel;
587 } ExprValue;
589 #define MAX_ASM_OPERANDS 30
590 typedef struct ASMOperand {
591 int id; /* GCC 3 optionnal identifier (0 if number only supported */
592 char *constraint;
593 char asm_str[16]; /* computed asm string for operand */
594 SValue *vt; /* C value of the expression */
595 int ref_index; /* if >= 0, gives reference to a output constraint */
596 int input_index; /* if >= 0, gives reference to an input constraint */
597 int priority; /* priority, used to assign registers */
598 int reg; /* if >= 0, register number used for this operand */
599 int is_llong; /* true if double register value */
600 int is_memory; /* true if memory operand */
601 int is_rw; /* for '+' modifier */
602 } ASMOperand;
603 #endif
605 /* extra symbol attributes (not in symbol table) */
606 struct sym_attr {
607 unsigned got_offset;
608 unsigned plt_offset;
609 int plt_sym;
610 int dyn_index;
611 #ifdef TCC_TARGET_ARM
612 unsigned char plt_thumb_stub:1;
613 #endif
616 struct TCCState {
618 int verbose; /* if true, display some information during compilation */
619 int nostdinc; /* if true, no standard headers are added */
620 int nostdlib; /* if true, no standard libraries are added */
621 int nocommon; /* if true, do not use common symbols for .bss data */
622 int static_link; /* if true, static linking is performed */
623 int rdynamic; /* if true, all symbols are exported */
624 int symbolic; /* if true, resolve symbols in the current module first */
625 int alacarte_link; /* if true, only link in referenced objects from archive */
627 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
628 char *soname; /* as specified on the command line (-soname) */
629 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
630 int enable_new_dtags; /* ditto, (-Wl,--enable-new-dtags) */
632 /* output type, see TCC_OUTPUT_XXX */
633 int output_type;
634 /* output format, see TCC_OUTPUT_FORMAT_xxx */
635 int output_format;
637 /* C language options */
638 int char_is_unsigned;
639 int leading_underscore;
640 int ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
641 int dollars_in_identifiers; /* allows '$' char in indentifiers */
642 int ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
644 /* warning switches */
645 int warn_write_strings;
646 int warn_unsupported;
647 int warn_error;
648 int warn_none;
649 int warn_implicit_function_declaration;
651 /* compile with debug symbol (and use them if error during execution) */
652 int do_debug;
653 #ifdef CONFIG_TCC_BCHECK
654 /* compile with built-in memory and bounds checker */
655 int do_bounds_check;
656 #endif
657 #ifdef TCC_TARGET_ARM
658 enum float_abi float_abi; /* float ABI of the generated code*/
659 #endif
661 addr_t text_addr; /* address of text section */
662 int has_text_addr;
664 unsigned section_align; /* section alignment */
666 char *init_symbol; /* symbols to call at load-time (not used currently) */
667 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
669 #ifdef TCC_TARGET_I386
670 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
671 #endif
672 #ifdef TCC_TARGET_X86_64
673 int nosse; /* For -mno-sse support. */
674 #endif
676 /* array of all loaded dlls (including those referenced by loaded dlls) */
677 DLLReference **loaded_dlls;
678 int nb_loaded_dlls;
680 /* include paths */
681 char **include_paths;
682 int nb_include_paths;
684 char **sysinclude_paths;
685 int nb_sysinclude_paths;
687 /* library paths */
688 char **library_paths;
689 int nb_library_paths;
691 /* crt?.o object path */
692 char **crt_paths;
693 int nb_crt_paths;
695 /* -include files */
696 char **cmd_include_files;
697 int nb_cmd_include_files;
699 /* error handling */
700 void *error_opaque;
701 void (*error_func)(void *opaque, const char *msg);
702 int error_set_jmp_enabled;
703 jmp_buf error_jmp_buf;
704 int nb_errors;
706 /* output file for preprocessing (-E) */
707 FILE *ppfp;
708 enum {
709 LINE_MACRO_OUTPUT_FORMAT_GCC,
710 LINE_MACRO_OUTPUT_FORMAT_NONE,
711 LINE_MACRO_OUTPUT_FORMAT_STD
712 } Pflag; /* -P switch */
713 char dflag; /* -dX value */
715 /* for -MD/-MF: collected dependencies for this compilation */
716 char **target_deps;
717 int nb_target_deps;
719 /* compilation */
720 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
721 BufferedFile **include_stack_ptr;
723 int ifdef_stack[IFDEF_STACK_SIZE];
724 int *ifdef_stack_ptr;
726 /* included files enclosed with #ifndef MACRO */
727 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
728 CachedInclude **cached_includes;
729 int nb_cached_includes;
731 /* #pragma pack stack */
732 int pack_stack[PACK_STACK_SIZE];
733 int *pack_stack_ptr;
734 char **pragma_libs;
735 int nb_pragma_libs;
737 /* inline functions are stored as token lists and compiled last
738 only if referenced */
739 struct InlineFunc **inline_fns;
740 int nb_inline_fns;
742 /* sections */
743 Section **sections;
744 int nb_sections; /* number of sections, including first dummy section */
746 Section **priv_sections;
747 int nb_priv_sections; /* number of private sections */
749 /* got & plt handling */
750 Section *got;
751 Section *plt;
753 /* temporary dynamic symbol sections (for dll loading) */
754 Section *dynsymtab_section;
755 /* exported dynamic symbol section */
756 Section *dynsym;
757 /* copy of the gobal symtab_section variable */
758 Section *symtab;
759 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
760 struct sym_attr *sym_attrs;
761 int nb_sym_attrs;
762 /* tiny assembler state */
763 Sym *asm_labels;
765 #ifdef TCC_TARGET_PE
766 /* PE info */
767 int pe_subsystem;
768 unsigned pe_characteristics;
769 unsigned pe_file_align;
770 unsigned pe_stack_size;
771 # ifdef TCC_TARGET_X86_64
772 Section *uw_pdata;
773 int uw_sym;
774 unsigned uw_offs;
775 # endif
776 #endif
778 #ifdef TCC_IS_NATIVE
779 const char *runtime_main;
780 void **runtime_mem;
781 int nb_runtime_mem;
782 #endif
784 /* used by main and tcc_parse_args only */
785 struct filespec **files; /* files seen on command line */
786 int nb_files; /* number thereof */
787 int nb_libraries; /* number of libs thereof */
788 int filetype;
789 char *outfile; /* output filename */
790 int option_r; /* option -r */
791 int do_bench; /* option -bench */
792 int gen_deps; /* option -MD */
793 char *deps_outfile; /* option -MF */
794 int option_pthread; /* -pthread option */
795 int argc;
796 char **argv;
799 struct filespec {
800 char type;
801 char alacarte;
802 char name[1];
805 /* The current value can be: */
806 #define VT_VALMASK 0x003f /* mask for value location, register or: */
807 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
808 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
809 #define VT_LOCAL 0x0032 /* offset on stack */
810 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
811 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
812 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
813 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
814 #define VT_LVAL 0x0100 /* var is an lvalue */
815 #define VT_SYM 0x0200 /* a symbol value is added */
816 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
817 char/short stored in integer registers) */
818 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
819 dereferencing value */
820 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
821 bounding function call point is in vc */
822 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
823 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
824 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
825 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
827 /* types */
828 #define VT_BTYPE 0x000f /* mask for basic type */
829 #define VT_INT 0 /* integer type */
830 #define VT_BYTE 1 /* signed byte type */
831 #define VT_SHORT 2 /* short type */
832 #define VT_VOID 3 /* void type */
833 #define VT_PTR 4 /* pointer */
834 #define VT_ENUM 5 /* enum definition */
835 #define VT_FUNC 6 /* function type */
836 #define VT_STRUCT 7 /* struct/union definition */
837 #define VT_FLOAT 8 /* IEEE float */
838 #define VT_DOUBLE 9 /* IEEE double */
839 #define VT_LDOUBLE 10 /* IEEE long double */
840 #define VT_BOOL 11 /* ISOC99 boolean type */
841 #define VT_LLONG 12 /* 64 bit integer */
842 #define VT_LONG 13 /* long integer (NEVER USED as type, only
843 during parsing) */
844 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
845 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
846 #define VT_UNSIGNED 0x0010 /* unsigned type */
847 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
848 #define VT_BITFIELD 0x0040 /* bitfield modifier */
849 #define VT_CONSTANT 0x0800 /* const modifier */
850 #define VT_VOLATILE 0x1000 /* volatile modifier */
851 #define VT_DEFSIGN 0x2000 /* signed type */
852 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
854 /* storage */
855 #define VT_EXTERN 0x00000080 /* extern definition */
856 #define VT_STATIC 0x00000100 /* static variable */
857 #define VT_TYPEDEF 0x00000200 /* typedef definition */
858 #define VT_INLINE 0x00000400 /* inline definition */
859 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
860 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
861 #define VT_WEAK 0x00010000 /* weak symbol */
862 #define VT_TLS 0x00040000 /* thread-local storage */
863 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
864 bitfield values, because bitfields never
865 have linkage and hence never have
866 visibility. */
867 #define VT_VIS_SIZE 2 /* We have four visibilities. */
868 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
870 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
873 /* type mask (except storage) */
874 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
875 #define VT_TYPE (~(VT_STORAGE))
877 /* token values */
879 /* warning: the following compare tokens depend on i386 asm code */
880 #define TOK_ULT 0x92
881 #define TOK_UGE 0x93
882 #define TOK_EQ 0x94
883 #define TOK_NE 0x95
884 #define TOK_ULE 0x96
885 #define TOK_UGT 0x97
886 #define TOK_Nset 0x98
887 #define TOK_Nclear 0x99
888 #define TOK_LT 0x9c
889 #define TOK_GE 0x9d
890 #define TOK_LE 0x9e
891 #define TOK_GT 0x9f
893 #define TOK_LAND 0xa0
894 #define TOK_LOR 0xa1
895 #define TOK_DEC 0xa2
896 #define TOK_MID 0xa3 /* inc/dec, to void constant */
897 #define TOK_INC 0xa4
898 #define TOK_UDIV 0xb0 /* unsigned division */
899 #define TOK_UMOD 0xb1 /* unsigned modulo */
900 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
902 /* tokens that carry values (in additional token string space / tokc) --> */
903 #define TOK_CCHAR 0xb3 /* char constant in tokc */
904 #define TOK_LCHAR 0xb4
905 #define TOK_CINT 0xb5 /* number in tokc */
906 #define TOK_CUINT 0xb6 /* unsigned int constant */
907 #define TOK_CLLONG 0xb7 /* long long constant */
908 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
909 #define TOK_STR 0xb9 /* pointer to string in tokc */
910 #define TOK_LSTR 0xba
911 #define TOK_CFLOAT 0xbb /* float constant */
912 #define TOK_CDOUBLE 0xbc /* double constant */
913 #define TOK_CLDOUBLE 0xbd /* long double constant */
914 #define TOK_PPNUM 0xbe /* preprocessor number */
915 #define TOK_PPSTR 0xbf /* preprocessor string */
916 #define TOK_LINENUM 0xc0 /* line number info */
917 /* <-- */
919 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
920 #define TOK_ADDC1 0xc3 /* add with carry generation */
921 #define TOK_ADDC2 0xc4 /* add with carry use */
922 #define TOK_SUBC1 0xc5 /* add with carry generation */
923 #define TOK_SUBC2 0xc6 /* add with carry use */
924 #define TOK_ARROW 0xc7
925 #define TOK_DOTS 0xc8 /* three dots */
926 #define TOK_SHR 0xc9 /* unsigned shift right */
927 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
928 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
929 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
930 #define TOK_PPJOIN 0xce /* A '##' in the right position to mean pasting */
932 #define TOK_SHL 0x01 /* shift left */
933 #define TOK_SAR 0x02 /* signed shift right */
935 /* assignement operators : normal operator or 0x80 */
936 #define TOK_A_MOD 0xa5
937 #define TOK_A_AND 0xa6
938 #define TOK_A_MUL 0xaa
939 #define TOK_A_ADD 0xab
940 #define TOK_A_SUB 0xad
941 #define TOK_A_DIV 0xaf
942 #define TOK_A_XOR 0xde
943 #define TOK_A_OR 0xfc
944 #define TOK_A_SHL 0x81
945 #define TOK_A_SAR 0x82
947 #ifndef offsetof
948 #define offsetof(type, field) ((size_t) &((type *)0)->field)
949 #endif
951 #ifndef countof
952 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
953 #endif
955 #define TOK_EOF (-1) /* end of file */
956 #define TOK_LINEFEED 10 /* line feed */
958 /* all identificators and strings have token above that */
959 #define TOK_IDENT 256
961 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
962 #define TOK_ASM_int TOK_INT
963 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
964 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
965 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
967 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
968 /* only used for i386 asm opcodes definitions */
969 #define DEF_BWL(x) \
970 DEF(TOK_ASM_ ## x ## b, #x "b") \
971 DEF(TOK_ASM_ ## x ## w, #x "w") \
972 DEF(TOK_ASM_ ## x ## l, #x "l") \
973 DEF(TOK_ASM_ ## x, #x)
974 #define DEF_WL(x) \
975 DEF(TOK_ASM_ ## x ## w, #x "w") \
976 DEF(TOK_ASM_ ## x ## l, #x "l") \
977 DEF(TOK_ASM_ ## x, #x)
978 #ifdef TCC_TARGET_X86_64
979 # define DEF_BWLQ(x) \
980 DEF(TOK_ASM_ ## x ## b, #x "b") \
981 DEF(TOK_ASM_ ## x ## w, #x "w") \
982 DEF(TOK_ASM_ ## x ## l, #x "l") \
983 DEF(TOK_ASM_ ## x ## q, #x "q") \
984 DEF(TOK_ASM_ ## x, #x)
985 # define DEF_WLQ(x) \
986 DEF(TOK_ASM_ ## x ## w, #x "w") \
987 DEF(TOK_ASM_ ## x ## l, #x "l") \
988 DEF(TOK_ASM_ ## x ## q, #x "q") \
989 DEF(TOK_ASM_ ## x, #x)
990 # define DEF_BWLX DEF_BWLQ
991 # define DEF_WLX DEF_WLQ
992 /* number of sizes + 1 */
993 # define NBWLX 5
994 #else
995 # define DEF_BWLX DEF_BWL
996 # define DEF_WLX DEF_WL
997 /* number of sizes + 1 */
998 # define NBWLX 4
999 #endif
1001 #define DEF_FP1(x) \
1002 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
1003 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
1004 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
1005 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
1007 #define DEF_FP(x) \
1008 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
1009 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
1010 DEF_FP1(x)
1012 #define DEF_ASMTEST(x,suffix) \
1013 DEF_ASM(x ## o ## suffix) \
1014 DEF_ASM(x ## no ## suffix) \
1015 DEF_ASM(x ## b ## suffix) \
1016 DEF_ASM(x ## c ## suffix) \
1017 DEF_ASM(x ## nae ## suffix) \
1018 DEF_ASM(x ## nb ## suffix) \
1019 DEF_ASM(x ## nc ## suffix) \
1020 DEF_ASM(x ## ae ## suffix) \
1021 DEF_ASM(x ## e ## suffix) \
1022 DEF_ASM(x ## z ## suffix) \
1023 DEF_ASM(x ## ne ## suffix) \
1024 DEF_ASM(x ## nz ## suffix) \
1025 DEF_ASM(x ## be ## suffix) \
1026 DEF_ASM(x ## na ## suffix) \
1027 DEF_ASM(x ## nbe ## suffix) \
1028 DEF_ASM(x ## a ## suffix) \
1029 DEF_ASM(x ## s ## suffix) \
1030 DEF_ASM(x ## ns ## suffix) \
1031 DEF_ASM(x ## p ## suffix) \
1032 DEF_ASM(x ## pe ## suffix) \
1033 DEF_ASM(x ## np ## suffix) \
1034 DEF_ASM(x ## po ## suffix) \
1035 DEF_ASM(x ## l ## suffix) \
1036 DEF_ASM(x ## nge ## suffix) \
1037 DEF_ASM(x ## nl ## suffix) \
1038 DEF_ASM(x ## ge ## suffix) \
1039 DEF_ASM(x ## le ## suffix) \
1040 DEF_ASM(x ## ng ## suffix) \
1041 DEF_ASM(x ## nle ## suffix) \
1042 DEF_ASM(x ## g ## suffix)
1044 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1046 enum tcc_token {
1047 TOK_LAST = TOK_IDENT - 1
1048 #define DEF(id, str) ,id
1049 #include "tcctok.h"
1050 #undef DEF
1053 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1054 #define TOK_UIDENT TOK_DEFINE
1056 /* ------------ libtcc.c ------------ */
1058 /* use GNU C extensions */
1059 ST_DATA int gnu_ext;
1060 /* use Tiny C extensions */
1061 ST_DATA int tcc_ext;
1062 /* XXX: get rid of this ASAP */
1063 ST_DATA struct TCCState *tcc_state;
1065 /* public functions currently used by the tcc main function */
1066 ST_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1067 ST_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1068 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1069 PUB_FUNC char *tcc_basename(const char *name);
1070 PUB_FUNC char *tcc_fileextension (const char *name);
1072 #ifndef MEM_DEBUG
1073 PUB_FUNC void tcc_free(void *ptr);
1074 PUB_FUNC void *tcc_malloc(unsigned long size);
1075 PUB_FUNC void *tcc_mallocz(unsigned long size);
1076 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1077 PUB_FUNC char *tcc_strdup(const char *str);
1078 #else
1079 #define tcc_free(ptr) tcc_free_debug(ptr)
1080 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1081 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1082 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1083 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1084 PUB_FUNC void tcc_free_debug(void *ptr);
1085 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1086 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1087 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1088 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1089 #endif
1091 #define free(p) use_tcc_free(p)
1092 #define malloc(s) use_tcc_malloc(s)
1093 #define realloc(p, s) use_tcc_realloc(p, s)
1094 #undef strdup
1095 #define strdup(s) use_tcc_strdup(s)
1096 PUB_FUNC void tcc_memcheck(void);
1097 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1098 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1099 PUB_FUNC void tcc_warning(const char *fmt, ...);
1101 /* other utilities */
1102 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data);
1103 ST_FUNC void dynarray_reset(void *pp, int *n);
1104 ST_INLN void cstr_ccat(CString *cstr, int ch);
1105 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1106 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1107 ST_FUNC void cstr_new(CString *cstr);
1108 ST_FUNC void cstr_free(CString *cstr);
1109 ST_FUNC void cstr_reset(CString *cstr);
1111 ST_INLN void sym_free(Sym *sym);
1112 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1113 ST_FUNC Sym *sym_find2(Sym *s, int v);
1114 ST_FUNC Sym *sym_push(int v, CType *type, int r, long c);
1115 ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep);
1116 ST_INLN Sym *struct_find(int v);
1117 ST_INLN Sym *sym_find(int v);
1118 ST_FUNC Sym *global_identifier_push(int v, int t, long c);
1120 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1121 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1122 ST_FUNC void tcc_close(void);
1124 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1125 /* flags: */
1126 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1127 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1128 #define AFF_PREPROCESS 0x40 /* preprocess file */
1129 /* combined with: */
1130 #define AFF_TYPE_NONE 0
1131 #define AFF_TYPE_C 1
1132 #define AFF_TYPE_ASM 2
1133 #define AFF_TYPE_ASMPP 3
1134 #define AFF_TYPE_BIN 4
1135 #define AFF_TYPE_LIB 5
1136 /* values from tcc_object_type(...) */
1137 #define AFF_BINTYPE_REL 1
1138 #define AFF_BINTYPE_DYN 2
1139 #define AFF_BINTYPE_AR 3
1140 #define AFF_BINTYPE_C67 4
1143 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1144 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1145 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1146 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1147 PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
1148 PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind);
1149 #ifdef _WIN32
1150 ST_FUNC char *normalize_slashes(char *path);
1151 #endif
1153 /* tcc_parse_args return codes: */
1154 #define OPT_HELP 1
1155 #define OPT_HELP2 2
1156 #define OPT_V 3
1157 #define OPT_PRINT_DIRS 4
1158 #define OPT_AR 5
1159 #define OPT_IMPDEF 6
1160 #define OPT_M32 32
1161 #define OPT_M64 64
1163 /* ------------ tccpp.c ------------ */
1165 ST_DATA struct BufferedFile *file;
1166 ST_DATA int ch, tok;
1167 ST_DATA CValue tokc;
1168 ST_DATA const int *macro_ptr;
1169 ST_DATA int parse_flags;
1170 ST_DATA int tok_flags;
1171 ST_DATA CString tokcstr; /* current parsed string, if any */
1173 /* display benchmark infos */
1174 ST_DATA int total_lines;
1175 ST_DATA int total_bytes;
1176 ST_DATA int tok_ident;
1177 ST_DATA TokenSym **table_ident;
1179 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1180 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1181 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1182 #define TOK_FLAG_EOF 0x0008 /* end of file */
1184 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1185 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1186 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1187 token. line feed is also
1188 returned at eof */
1189 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1190 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1191 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1192 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1194 /* isidnum_table flags: */
1195 #define IS_SPC 1
1196 #define IS_ID 2
1197 #define IS_NUM 4
1199 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1200 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1201 ST_FUNC void begin_macro(TokenString *str, int alloc);
1202 ST_FUNC void end_macro(void);
1203 ST_FUNC void set_idnum(int c, int val);
1204 ST_FUNC void save_parse_state(ParseState *s);
1205 ST_FUNC void restore_parse_state(ParseState *s);
1206 ST_INLN void tok_str_new(TokenString *s);
1207 ST_FUNC TokenString *tok_str_alloc(void);
1208 ST_FUNC void tok_str_free(TokenString *s);
1209 ST_FUNC void tok_str_free_str(int *str);
1210 ST_FUNC void tok_str_add(TokenString *s, int t);
1211 ST_FUNC void tok_str_add_tok(TokenString *s);
1212 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1213 ST_FUNC void define_undef(Sym *s);
1214 ST_INLN Sym *define_find(int v);
1215 ST_FUNC void free_defines(Sym *b);
1216 ST_FUNC Sym *label_find(int v);
1217 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1218 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1219 ST_FUNC void parse_define(void);
1220 ST_FUNC void preprocess(int is_bof);
1221 ST_FUNC void next_nomacro(void);
1222 ST_FUNC void next(void);
1223 ST_INLN void unget_tok(int last_tok);
1224 ST_FUNC void preprocess_start(TCCState *s1);
1225 ST_FUNC void tccpp_new(TCCState *s);
1226 ST_FUNC void tccpp_delete(TCCState *s);
1227 ST_FUNC int tcc_preprocess(TCCState *s1);
1228 ST_FUNC void skip(int c);
1229 ST_FUNC NORETURN void expect(const char *msg);
1231 /* space exlcuding newline */
1232 static inline int is_space(int ch) {
1233 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1235 static inline int isid(int c) {
1236 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1238 static inline int isnum(int c) {
1239 return c >= '0' && c <= '9';
1241 static inline int isoct(int c) {
1242 return c >= '0' && c <= '7';
1244 static inline int toup(int c) {
1245 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1248 /* ------------ tccgen.c ------------ */
1250 #define SYM_POOL_NB (8192 / sizeof(Sym))
1251 ST_DATA Sym *sym_free_first;
1252 ST_DATA void **sym_pools;
1253 ST_DATA int nb_sym_pools;
1255 ST_DATA Sym *global_stack;
1256 ST_DATA Sym *local_stack;
1257 ST_DATA Sym *local_label_stack;
1258 ST_DATA Sym *global_label_stack;
1259 ST_DATA Sym *define_stack;
1260 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1261 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop;
1262 #define vstack (__vstack + 1)
1263 ST_DATA int rsym, anon_sym, ind, loc;
1265 ST_DATA int const_wanted; /* true if constant wanted */
1266 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1267 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1268 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1269 ST_DATA int func_var; /* true if current function is variadic */
1270 ST_DATA int func_vc;
1271 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1272 ST_DATA const char *funcname;
1274 ST_FUNC void tcc_debug_start(TCCState *s1);
1275 ST_FUNC void tcc_debug_end(TCCState *s1);
1276 ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym);
1277 ST_FUNC void tcc_debug_funcend(TCCState *s1, int size);
1278 ST_FUNC void tcc_debug_line(TCCState *s1);
1280 ST_FUNC void tccgen_start(TCCState *s1);
1281 ST_FUNC void tccgen_end(TCCState *s1);
1283 ST_FUNC void free_inline_functions(TCCState *s);
1284 ST_FUNC void check_vstack(void);
1286 ST_INLN int is_float(int t);
1287 ST_FUNC int ieee_finite(double d);
1288 ST_FUNC void test_lvalue(void);
1289 ST_FUNC void vpushi(int v);
1290 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1291 ST_FUNC void vset(CType *type, int r, long v);
1292 ST_FUNC void vswap(void);
1293 ST_FUNC void vpush_global_sym(CType *type, int v);
1294 ST_FUNC void vrote(SValue *e, int n);
1295 ST_FUNC void vrott(int n);
1296 ST_FUNC void vrotb(int n);
1297 #ifdef TCC_TARGET_ARM
1298 ST_FUNC int get_reg_ex(int rc, int rc2);
1299 ST_FUNC void lexpand_nr(void);
1300 #endif
1301 ST_FUNC void vpushv(SValue *v);
1302 ST_FUNC void save_reg(int r);
1303 ST_FUNC void save_reg_upstack(int r, int n);
1304 ST_FUNC int get_reg(int rc);
1305 ST_FUNC void save_regs(int n);
1306 ST_FUNC void gaddrof(void);
1307 ST_FUNC int gv(int rc);
1308 ST_FUNC void gv2(int rc1, int rc2);
1309 ST_FUNC void vpop(void);
1310 ST_FUNC void gen_op(int op);
1311 ST_FUNC int type_size(CType *type, int *a);
1312 ST_FUNC void mk_pointer(CType *type);
1313 ST_FUNC void vstore(void);
1314 ST_FUNC void inc(int post, int c);
1315 ST_FUNC void parse_mult_str (CString *astr, const char *msg);
1316 ST_FUNC void parse_asm_str(CString *astr);
1317 ST_FUNC int lvalue_type(int t);
1318 ST_FUNC void indir(void);
1319 ST_FUNC void unary(void);
1320 ST_FUNC void expr_prod(void);
1321 ST_FUNC void expr_sum(void);
1322 ST_FUNC void gexpr(void);
1323 ST_FUNC int expr_const(void);
1324 ST_FUNC void decl(int l);
1325 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1326 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1327 #endif
1328 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1329 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1330 #endif
1332 /* ------------ tccelf.c ------------ */
1334 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1335 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1336 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1338 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1340 typedef struct {
1341 unsigned int n_strx; /* index into string table of name */
1342 unsigned char n_type; /* type of symbol */
1343 unsigned char n_other; /* misc info (usually empty) */
1344 unsigned short n_desc; /* description field */
1345 unsigned int n_value; /* value of symbol */
1346 } Stab_Sym;
1348 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1349 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1350 #ifdef CONFIG_TCC_ASM
1351 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1352 #endif
1353 #ifdef CONFIG_TCC_BCHECK
1354 /* bound check related sections */
1355 ST_DATA Section *bounds_section; /* contains global data bound description */
1356 ST_DATA Section *lbounds_section; /* contains local data bound description */
1357 ST_FUNC void tccelf_bounds_new(TCCState *s);
1358 #endif
1359 /* symbol sections */
1360 ST_DATA Section *symtab_section, *strtab_section;
1361 /* debug sections */
1362 ST_DATA Section *stab_section, *stabstr_section;
1364 ST_FUNC void tccelf_new(TCCState *s);
1365 ST_FUNC void tccelf_delete(TCCState *s);
1366 ST_FUNC void tccelf_stab_new(TCCState *s);
1368 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1369 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1370 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1371 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1372 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1373 ST_FUNC Section *new_symtab(TCCState *s1, const char *symtab_name, int sh_type, int sh_flags, const char *strtab_name, const char *hash_name, int hash_sh_flags);
1375 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1376 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1377 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1378 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1380 ST_FUNC int put_elf_str(Section *s, const char *sym);
1381 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1382 ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1383 ST_FUNC int find_elf_sym(Section *s, const char *name);
1384 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1385 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1387 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1388 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1389 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1390 ST_FUNC void put_stabd(int type, int other, int desc);
1392 ST_FUNC void relocate_common_syms(void);
1393 ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
1394 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1396 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1397 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1398 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1399 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1400 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1401 ST_FUNC void tcc_add_runtime(TCCState *s1);
1403 ST_FUNC void build_got_entries(TCCState *s1);
1404 ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
1405 ST_FUNC void squeeze_multi_relocs(Section *sec, size_t oldrelocoffset);
1407 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1408 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1409 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1410 #endif
1412 #ifndef TCC_TARGET_PE
1413 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1414 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1415 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1416 ST_FUNC void minp(void);
1417 ST_INLN void inp(void);
1418 ST_FUNC int handle_eob(void);
1419 #endif
1421 /* ------------ xxx-link.c ------------ */
1423 /* Wether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1424 that unknown relocation don't create a GOT or PLT entry */
1425 enum gotplt_entry {
1426 NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1427 BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
1428 AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
1429 ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
1432 ST_FUNC int code_reloc (int reloc_type);
1433 ST_FUNC int gotplt_entry_type (int reloc_type);
1434 ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
1435 ST_FUNC void relocate_init(Section *sr);
1436 ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, addr_t val);
1437 ST_FUNC void relocate_plt(TCCState *s1);
1439 /* ------------ xxx-gen.c ------------ */
1441 ST_DATA const int reg_classes[NB_REGS];
1443 ST_FUNC void gsym_addr(int t, int a);
1444 ST_FUNC void gsym(int t);
1445 ST_FUNC void load(int r, SValue *sv);
1446 ST_FUNC void store(int r, SValue *v);
1447 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1448 ST_FUNC void gfunc_call(int nb_args);
1449 ST_FUNC void gfunc_prolog(CType *func_type);
1450 ST_FUNC void gfunc_epilog(void);
1451 ST_FUNC int gjmp(int t);
1452 ST_FUNC void gjmp_addr(int a);
1453 ST_FUNC int gtst(int inv, int t);
1454 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1455 ST_FUNC void gtst_addr(int inv, int a);
1456 #else
1457 #define gtst_addr(inv, a) gsym_addr(gtst(inv, 0), a)
1458 #endif
1459 ST_FUNC void gen_opi(int op);
1460 ST_FUNC void gen_opf(int op);
1461 ST_FUNC void gen_cvt_ftoi(int t);
1462 ST_FUNC void gen_cvt_ftof(int t);
1463 ST_FUNC void ggoto(void);
1464 #ifndef TCC_TARGET_C67
1465 ST_FUNC void o(unsigned int c);
1466 #endif
1467 #ifndef TCC_TARGET_ARM
1468 ST_FUNC void gen_cvt_itof(int t);
1469 #endif
1470 ST_FUNC void gen_vla_sp_save(int addr);
1471 ST_FUNC void gen_vla_sp_restore(int addr);
1472 ST_FUNC void gen_vla_alloc(CType *type, int align);
1474 static inline uint16_t read16le(unsigned char *p) {
1475 return p[0] | (uint16_t)p[1] << 8;
1477 static inline void write16le(unsigned char *p, uint16_t x) {
1478 p[0] = x & 255, p[1] = x >> 8 & 255;
1480 static inline uint32_t read32le(unsigned char *p) {
1481 return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1483 static inline void write32le(unsigned char *p, uint32_t x) {
1484 write16le(p, x), write16le(p + 2, x >> 16);
1486 static inline void add32le(unsigned char *p, int32_t x) {
1487 write32le(p, read32le(p) + x);
1489 static inline uint64_t read64le(unsigned char *p) {
1490 return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1492 static inline void write64le(unsigned char *p, uint64_t x) {
1493 write32le(p, x), write32le(p + 4, x >> 32);
1495 static inline void add64le(unsigned char *p, int64_t x) {
1496 write64le(p, read64le(p) + x);
1499 /* ------------ i386-gen.c ------------ */
1500 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1501 ST_FUNC void g(int c);
1502 ST_FUNC void gen_le16(int c);
1503 ST_FUNC void gen_le32(int c);
1504 ST_FUNC void gen_addr32(int r, Sym *sym, long c);
1505 ST_FUNC void gen_addrpc32(int r, Sym *sym, long c);
1506 #endif
1508 #ifdef CONFIG_TCC_BCHECK
1509 ST_FUNC void gen_bounded_ptr_add(void);
1510 ST_FUNC void gen_bounded_ptr_deref(void);
1511 #endif
1513 /* ------------ x86_64-gen.c ------------ */
1514 #ifdef TCC_TARGET_X86_64
1515 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1516 ST_FUNC void gen_opl(int op);
1517 #endif
1519 /* ------------ arm-gen.c ------------ */
1520 #ifdef TCC_TARGET_ARM
1521 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1522 PUB_FUNC char *default_elfinterp(struct TCCState *s);
1523 #endif
1524 ST_FUNC void arm_init(struct TCCState *s);
1525 ST_FUNC void gen_cvt_itof1(int t);
1526 #endif
1528 /* ------------ arm64-gen.c ------------ */
1529 #ifdef TCC_TARGET_ARM64
1530 ST_FUNC void gen_cvt_sxtw(void);
1531 ST_FUNC void gen_opl(int op);
1532 ST_FUNC void gfunc_return(CType *func_type);
1533 ST_FUNC void gen_va_start(void);
1534 ST_FUNC void gen_va_arg(CType *t);
1535 ST_FUNC void gen_clear_cache(void);
1536 #endif
1538 /* ------------ c67-gen.c ------------ */
1539 #ifdef TCC_TARGET_C67
1540 #endif
1542 /* ------------ tcccoff.c ------------ */
1544 #ifdef TCC_TARGET_COFF
1545 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1546 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1547 #endif
1549 /* ------------ tccasm.c ------------ */
1550 ST_FUNC void asm_instr(void);
1551 ST_FUNC void asm_global_instr(void);
1552 #ifdef CONFIG_TCC_ASM
1553 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1554 ST_FUNC Sym* get_asm_sym(int name, Sym *csym);
1555 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1556 ST_FUNC int asm_int_expr(TCCState *s1);
1557 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1558 /* ------------ i386-asm.c ------------ */
1559 ST_FUNC void gen_expr32(ExprValue *pe);
1560 #ifdef TCC_TARGET_X86_64
1561 ST_FUNC void gen_expr64(ExprValue *pe);
1562 #endif
1563 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1564 ST_FUNC int asm_parse_regvar(int t);
1565 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1566 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1567 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1568 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1569 #endif
1571 /* ------------ tccpe.c -------------- */
1572 #ifdef TCC_TARGET_PE
1573 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1574 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1575 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1576 #ifndef TCC_TARGET_ARM
1577 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1578 #endif
1579 #ifdef TCC_TARGET_X86_64
1580 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1581 #endif
1582 PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp);
1583 /* symbol properties stored in Elf32_Sym->st_other */
1584 # define ST_PE_EXPORT 0x10
1585 # define ST_PE_IMPORT 0x20
1586 # define ST_PE_STDCALL 0x40
1587 #endif
1589 /* ------------ tccrun.c ----------------- */
1590 #ifdef TCC_IS_NATIVE
1591 #ifdef CONFIG_TCC_STATIC
1592 #define RTLD_LAZY 0x001
1593 #define RTLD_NOW 0x002
1594 #define RTLD_GLOBAL 0x100
1595 #define RTLD_DEFAULT NULL
1596 /* dummy function for profiling */
1597 ST_FUNC void *dlopen(const char *filename, int flag);
1598 ST_FUNC void dlclose(void *p);
1599 ST_FUNC const char *dlerror(void);
1600 ST_FUNC void *dlsym(void *handle, const char *symbol);
1601 #endif
1602 #ifdef CONFIG_TCC_BACKTRACE
1603 ST_DATA int rt_num_callers;
1604 ST_DATA const char **rt_bound_error_msg;
1605 ST_DATA void *rt_prog_main;
1606 ST_FUNC void tcc_set_num_callers(int n);
1607 #endif
1608 ST_FUNC void tcc_run_free(TCCState *s1);
1609 #endif
1611 /* ------------ tcctools.c ----------------- */
1612 #if 0 /* included in tcc.c */
1613 ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv);
1614 #ifdef TCC_TARGET_PE
1615 ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv);
1616 #endif
1617 ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option);
1618 ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename);
1619 #endif
1621 /********************************************************/
1622 #undef ST_DATA
1623 #ifdef ONE_SOURCE
1624 #define ST_DATA static
1625 #else
1626 #define ST_DATA
1627 #endif
1628 /********************************************************/
1629 #endif /* _TCC_H */