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[tinycc.git] / tcc.h
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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_X86_64 *//* x86-64 code generator */
126 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
127 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
128 /* #define TCC_TARGET_C67 *//* TMS320C67xx 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 /* object format selection */
138 #if defined(TCC_TARGET_C67)
139 #define TCC_TARGET_COFF
140 #endif
142 /* only native compiler supports -run */
143 #if defined _WIN32 == defined TCC_TARGET_PE
144 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
145 # define TCC_IS_NATIVE
146 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
147 # define TCC_IS_NATIVE
148 # elif defined __arm__ && defined TCC_TARGET_ARM
149 # define TCC_IS_NATIVE
150 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
151 # define TCC_IS_NATIVE
152 # endif
153 #endif
155 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
156 # define CONFIG_TCC_BACKTRACE
157 # if (defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64) \
158 && !defined TCC_UCLIBC && !defined TCC_MUSL
159 # define CONFIG_TCC_BCHECK /* enable bound checking code */
160 # endif
161 #endif
163 /* ------------ path configuration ------------ */
165 #ifndef CONFIG_SYSROOT
166 # define CONFIG_SYSROOT ""
167 #endif
168 #ifndef CONFIG_TCCDIR
169 # define CONFIG_TCCDIR "."
170 #endif
171 #ifndef CONFIG_LDDIR
172 # define CONFIG_LDDIR "lib"
173 #endif
174 #ifdef CONFIG_TRIPLET
175 # define USE_TRIPLET(s) s "/" CONFIG_TRIPLET
176 # define ALSO_TRIPLET(s) USE_TRIPLET(s) ":" s
177 #else
178 # define USE_TRIPLET(s) s
179 # define ALSO_TRIPLET(s) s
180 #endif
182 /* path to find crt1.o, crti.o and crtn.o */
183 #ifndef CONFIG_TCC_CRTPREFIX
184 # define CONFIG_TCC_CRTPREFIX USE_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
185 #endif
187 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
189 /* system include paths */
190 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
191 # ifdef TCC_TARGET_PE
192 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
193 # else
194 # define CONFIG_TCC_SYSINCLUDEPATHS \
195 "{B}/include" \
196 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/include") \
197 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/include")
198 # endif
199 #endif
201 /* library search paths */
202 #ifndef CONFIG_TCC_LIBPATHS
203 # ifdef TCC_TARGET_PE
204 # define CONFIG_TCC_LIBPATHS "{B}/lib"
205 # else
206 # define CONFIG_TCC_LIBPATHS \
207 ALSO_TRIPLET(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
208 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
209 ":" ALSO_TRIPLET(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
210 # endif
211 #endif
213 /* name of ELF interpreter */
214 #ifndef CONFIG_TCC_ELFINTERP
215 # if defined __FreeBSD__
216 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
217 # elif defined __FreeBSD_kernel__
218 # if defined(TCC_TARGET_X86_64)
219 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
220 # else
221 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
222 # endif
223 # elif defined __DragonFly__
224 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
225 # elif defined __NetBSD__
226 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
227 # elif defined __GNU__
228 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
229 # elif defined(TCC_TARGET_PE)
230 # define CONFIG_TCC_ELFINTERP "-"
231 # elif defined(TCC_UCLIBC)
232 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
233 # elif defined TCC_TARGET_ARM64
234 # if defined(TCC_MUSL)
235 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-aarch64.so.1"
236 # else
237 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
238 # endif
239 # elif defined(TCC_TARGET_X86_64)
240 # if defined(TCC_MUSL)
241 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-x86_64.so.1"
242 # else
243 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
244 # endif
245 # elif !defined(TCC_ARM_EABI)
246 # if defined(TCC_MUSL)
247 # define CONFIG_TCC_ELFINTERP "/lib/ld-musl-arm.so.1"
248 # else
249 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
250 # endif
251 # endif
252 #endif
254 /* var elf_interp dans *-gen.c */
255 #ifdef CONFIG_TCC_ELFINTERP
256 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
257 #else
258 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
259 #endif
261 /* (target specific) libtcc1.a */
262 #ifndef TCC_LIBTCC1
263 # define TCC_LIBTCC1 "libtcc1.a"
264 #endif
266 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
267 #if defined CONFIG_USE_LIBGCC && !defined TCC_LIBGCC
268 #define TCC_LIBGCC USE_TRIPLET(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
269 #endif
271 /* -------------------------------------------- */
273 #include "libtcc.h"
274 #include "elf.h"
275 #include "stab.h"
277 /* -------------------------------------------- */
279 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
280 # define PUB_FUNC
281 #endif
283 #ifdef ONE_SOURCE
284 #define ST_INLN static inline
285 #define ST_FUNC static
286 #define ST_DATA static
287 #else
288 #define ST_INLN
289 #define ST_FUNC
290 #define ST_DATA extern
291 #endif
293 #ifdef TCC_PROFILE /* profile all functions */
294 # define static
295 #endif
297 /* -------------------------------------------- */
298 /* include the target specific definitions */
300 #define TARGET_DEFS_ONLY
301 #ifdef TCC_TARGET_I386
302 # include "i386-gen.c"
303 # include "i386-link.c"
304 #endif
305 #ifdef TCC_TARGET_X86_64
306 # include "x86_64-gen.c"
307 # include "x86_64-link.c"
308 #endif
309 #ifdef TCC_TARGET_ARM
310 # include "arm-gen.c"
311 # include "arm-link.c"
312 # include "arm-asm.c"
313 #endif
314 #ifdef TCC_TARGET_ARM64
315 # include "arm64-gen.c"
316 # include "arm64-link.c"
317 #endif
318 #ifdef TCC_TARGET_C67
319 # include "coff.h"
320 # include "c67-gen.c"
321 # include "c67-link.c"
322 #endif
323 #undef TARGET_DEFS_ONLY
325 /* -------------------------------------------- */
327 #if PTR_SIZE == 8
328 # define ELFCLASSW ELFCLASS64
329 # define ElfW(type) Elf##64##_##type
330 # define ELFW(type) ELF##64##_##type
331 # define ElfW_Rel ElfW(Rela)
332 # define SHT_RELX SHT_RELA
333 # define REL_SECTION_FMT ".rela%s"
334 #else
335 # define ELFCLASSW ELFCLASS32
336 # define ElfW(type) Elf##32##_##type
337 # define ELFW(type) ELF##32##_##type
338 # define ElfW_Rel ElfW(Rel)
339 # define SHT_RELX SHT_REL
340 # define REL_SECTION_FMT ".rel%s"
341 #endif
342 /* target address type */
343 #define addr_t ElfW(Addr)
345 /* -------------------------------------------- */
347 #define INCLUDE_STACK_SIZE 32
348 #define IFDEF_STACK_SIZE 64
349 #define VSTACK_SIZE 256
350 #define STRING_MAX_SIZE 1024
351 #define TOKSTR_MAX_SIZE 256
352 #define PACK_STACK_SIZE 8
354 #define TOK_HASH_SIZE 16384 /* must be a power of two */
355 #define TOK_ALLOC_INCR 512 /* must be a power of two */
356 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
358 /* token symbol management */
359 typedef struct TokenSym {
360 struct TokenSym *hash_next;
361 struct Sym *sym_define; /* direct pointer to define */
362 struct Sym *sym_label; /* direct pointer to label */
363 struct Sym *sym_struct; /* direct pointer to structure */
364 struct Sym *sym_identifier; /* direct pointer to identifier */
365 int tok; /* token number */
366 int len;
367 char str[1];
368 } TokenSym;
370 #ifdef TCC_TARGET_PE
371 typedef unsigned short nwchar_t;
372 #else
373 typedef int nwchar_t;
374 #endif
376 typedef struct CString {
377 int size; /* size in bytes */
378 void *data; /* either 'char *' or 'nwchar_t *' */
379 int size_allocated;
380 } CString;
382 /* type definition */
383 typedef struct CType {
384 int t;
385 struct Sym *ref;
386 } CType;
388 /* constant value */
389 typedef union CValue {
390 long double ld;
391 double d;
392 float f;
393 uint64_t i;
394 struct {
395 int size;
396 const void *data;
397 } str;
398 int tab[LDOUBLE_SIZE/4];
399 } CValue;
401 /* value on stack */
402 typedef struct SValue {
403 CType type; /* type */
404 unsigned short r; /* register + flags */
405 unsigned short r2; /* second register, used for 'long long'
406 type. If not used, set to VT_CONST */
407 CValue c; /* constant, if VT_CONST */
408 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST), or if
409 result of unary() for an identifier. */
410 } SValue;
412 struct Attribute {
413 unsigned
414 func_call : 3, /* calling convention (0..5), see below */
415 aligned : 5, /* alignment as log2+1 (0 == unspecified) */
416 packed : 1,
417 func_export : 1,
418 func_import : 1,
419 func_args : 5,
420 func_body : 1,
421 mode : 4,
422 weak : 1,
423 visibility : 2,
424 unsigned_enum : 1,
425 fill : 7; // 7 bits left to fit well in union below
428 /* GNUC attribute definition */
429 typedef struct AttributeDef {
430 struct Attribute a;
431 struct Section *section;
432 int alias_target; /* token */
433 int asm_label; /* associated asm label */
434 } AttributeDef;
436 /* symbol management */
437 typedef struct Sym {
438 int v; /* symbol token */
439 union {
440 int asm_label; /* associated asm label */
441 int scope; /* scope level for locals */
443 union {
444 long r; /* associated register or VT_CONST/VT_LOCAL and LVAL type */
445 struct Attribute a;
447 union {
448 long c; /* associated number */
449 int *d; /* define token stream */
451 CType type; /* associated type */
452 union {
453 struct Sym *next; /* next related symbol (for fields and anoms) */
454 long jnext; /* next jump label */
456 struct Sym *prev; /* prev symbol in stack */
457 struct Sym *prev_tok; /* previous symbol for this token */
458 } Sym;
460 /* section definition */
461 /* XXX: use directly ELF structure for parameters ? */
462 /* special flag to indicate that the section should not be linked to
463 the other ones */
464 #define SHF_PRIVATE 0x80000000
466 /* special flag, too */
467 #define SECTION_ABS ((void *)1)
469 typedef struct Section {
470 unsigned long data_offset; /* current data offset */
471 unsigned char *data; /* section data */
472 unsigned long data_allocated; /* used for realloc() handling */
473 int sh_name; /* elf section name (only used during output) */
474 int sh_num; /* elf section number */
475 int sh_type; /* elf section type */
476 int sh_flags; /* elf section flags */
477 int sh_info; /* elf section info */
478 int sh_addralign; /* elf section alignment */
479 int sh_entsize; /* elf entry size */
480 unsigned long sh_size; /* section size (only used during output) */
481 addr_t sh_addr; /* address at which the section is relocated */
482 unsigned long sh_offset; /* file offset */
483 int nb_hashed_syms; /* used to resize the hash table */
484 struct Section *link; /* link to another section */
485 struct Section *reloc; /* corresponding section for relocation, if any */
486 struct Section *hash; /* hash table for symbols */
487 struct Section *prev; /* previous section on section stack */
488 char name[1]; /* section name */
489 } Section;
491 typedef struct DLLReference {
492 int level;
493 void *handle;
494 char name[1];
495 } DLLReference;
497 /* -------------------------------------------------- */
499 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
500 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
501 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
503 /* stored in 'Sym.c' field */
504 #define FUNC_NEW 1 /* ansi function prototype */
505 #define FUNC_OLD 2 /* old function prototype */
506 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
508 /* stored in 'Sym.r' field */
509 #define FUNC_CDECL 0 /* standard c call */
510 #define FUNC_STDCALL 1 /* pascal c call */
511 #define FUNC_FASTCALL1 2 /* first param in %eax */
512 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
513 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
514 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
516 /* field 'Sym.t' for macros */
517 #define MACRO_OBJ 0 /* object like macro */
518 #define MACRO_FUNC 1 /* function like macro */
520 /* field 'Sym.r' for C labels */
521 #define LABEL_DEFINED 0 /* label is defined */
522 #define LABEL_FORWARD 1 /* label is forward defined */
523 #define LABEL_DECLARED 2 /* label is declared but never used */
525 /* type_decl() types */
526 #define TYPE_ABSTRACT 1 /* type without variable */
527 #define TYPE_DIRECT 2 /* type with variable */
529 #define IO_BUF_SIZE 8192
531 typedef struct BufferedFile {
532 uint8_t *buf_ptr;
533 uint8_t *buf_end;
534 int fd;
535 struct BufferedFile *prev;
536 int line_num; /* current line number - here to simplify code */
537 int line_ref; /* tcc -E: last printed line */
538 int ifndef_macro; /* #ifndef macro / #endif search */
539 int ifndef_macro_saved; /* saved ifndef_macro */
540 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
541 int include_next_index; /* next search path */
542 char filename[1024]; /* filename */
543 char filename2[1024]; /* filename not modified by # line directive */
544 unsigned char unget[4];
545 unsigned char buffer[1]; /* extra size for CH_EOB char */
546 } BufferedFile;
548 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
549 #define CH_EOF (-1) /* end of file */
551 /* parsing state (used to save parser state to reparse part of the
552 source several times) */
553 typedef struct ParseState {
554 const int *macro_ptr;
555 int line_num;
556 int tok;
557 CValue tokc;
558 } ParseState;
560 /* used to record tokens */
561 typedef struct TokenString {
562 int *str;
563 int len;
564 int allocated_len;
565 int last_line_num;
566 /* used to chain token-strings with begin/end_macro() */
567 struct TokenString *prev;
568 const int *prev_ptr;
569 char alloc;
570 } TokenString;
572 /* inline functions */
573 typedef struct InlineFunc {
574 TokenString *func_str;
575 Sym *sym;
576 char filename[1];
577 } InlineFunc;
579 /* include file cache, used to find files faster and also to eliminate
580 inclusion if the include file is protected by #ifndef ... #endif */
581 typedef struct CachedInclude {
582 int ifndef_macro;
583 int once;
584 int hash_next; /* -1 if none */
585 char filename[1]; /* path specified in #include */
586 } CachedInclude;
588 #define CACHED_INCLUDES_HASH_SIZE 32
590 #ifdef CONFIG_TCC_ASM
591 typedef struct ExprValue {
592 uint64_t v;
593 Sym *sym;
594 int pcrel;
595 } ExprValue;
597 #define MAX_ASM_OPERANDS 30
598 typedef struct ASMOperand {
599 int id; /* GCC 3 optional identifier (0 if number only supported */
600 char *constraint;
601 char asm_str[16]; /* computed asm string for operand */
602 SValue *vt; /* C value of the expression */
603 int ref_index; /* if >= 0, gives reference to a output constraint */
604 int input_index; /* if >= 0, gives reference to an input constraint */
605 int priority; /* priority, used to assign registers */
606 int reg; /* if >= 0, register number used for this operand */
607 int is_llong; /* true if double register value */
608 int is_memory; /* true if memory operand */
609 int is_rw; /* for '+' modifier */
610 } ASMOperand;
611 #endif
613 /* extra symbol attributes (not in symbol table) */
614 struct sym_attr {
615 unsigned got_offset;
616 unsigned plt_offset;
617 int plt_sym;
618 int dyn_index;
619 #ifdef TCC_TARGET_ARM
620 unsigned char plt_thumb_stub:1;
621 #endif
624 struct TCCState {
626 int verbose; /* if true, display some information during compilation */
627 int nostdinc; /* if true, no standard headers are added */
628 int nostdlib; /* if true, no standard libraries are added */
629 int nocommon; /* if true, do not use common symbols for .bss data */
630 int static_link; /* if true, static linking is performed */
631 int rdynamic; /* if true, all symbols are exported */
632 int symbolic; /* if true, resolve symbols in the current module first */
633 int alacarte_link; /* if true, only link in referenced objects from archive */
635 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
636 char *soname; /* as specified on the command line (-soname) */
637 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
638 int enable_new_dtags; /* ditto, (-Wl,--enable-new-dtags) */
640 /* output type, see TCC_OUTPUT_XXX */
641 int output_type;
642 /* output format, see TCC_OUTPUT_FORMAT_xxx */
643 int output_format;
645 /* C language options */
646 int char_is_unsigned;
647 int leading_underscore;
648 int ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
649 int dollars_in_identifiers; /* allows '$' char in identifiers */
650 int ms_bitfields; /* if true, emulate MS algorithm for aligning bitfields */
652 /* warning switches */
653 int warn_write_strings;
654 int warn_unsupported;
655 int warn_error;
656 int warn_none;
657 int warn_implicit_function_declaration;
658 int warn_gcc_compat;
660 /* compile with debug symbol (and use them if error during execution) */
661 int do_debug;
662 #ifdef CONFIG_TCC_BCHECK
663 /* compile with built-in memory and bounds checker */
664 int do_bounds_check;
665 #endif
666 #ifdef TCC_TARGET_ARM
667 enum float_abi float_abi; /* float ABI of the generated code*/
668 #endif
670 addr_t text_addr; /* address of text section */
671 int has_text_addr;
673 unsigned section_align; /* section alignment */
675 char *init_symbol; /* symbols to call at load-time (not used currently) */
676 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
678 #ifdef TCC_TARGET_I386
679 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
680 #endif
681 #ifdef TCC_TARGET_X86_64
682 int nosse; /* For -mno-sse support. */
683 #endif
685 /* array of all loaded dlls (including those referenced by loaded dlls) */
686 DLLReference **loaded_dlls;
687 int nb_loaded_dlls;
689 /* include paths */
690 char **include_paths;
691 int nb_include_paths;
693 char **sysinclude_paths;
694 int nb_sysinclude_paths;
696 /* library paths */
697 char **library_paths;
698 int nb_library_paths;
700 /* crt?.o object path */
701 char **crt_paths;
702 int nb_crt_paths;
704 /* -include files */
705 char **cmd_include_files;
706 int nb_cmd_include_files;
708 /* error handling */
709 void *error_opaque;
710 void (*error_func)(void *opaque, const char *msg);
711 int error_set_jmp_enabled;
712 jmp_buf error_jmp_buf;
713 int nb_errors;
715 /* output file for preprocessing (-E) */
716 FILE *ppfp;
717 enum {
718 LINE_MACRO_OUTPUT_FORMAT_GCC,
719 LINE_MACRO_OUTPUT_FORMAT_NONE,
720 LINE_MACRO_OUTPUT_FORMAT_STD,
721 LINE_MACRO_OUTPUT_FORMAT_P10 = 11
722 } Pflag; /* -P switch */
723 char dflag; /* -dX value */
725 /* for -MD/-MF: collected dependencies for this compilation */
726 char **target_deps;
727 int nb_target_deps;
729 /* compilation */
730 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
731 BufferedFile **include_stack_ptr;
733 int ifdef_stack[IFDEF_STACK_SIZE];
734 int *ifdef_stack_ptr;
736 /* included files enclosed with #ifndef MACRO */
737 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
738 CachedInclude **cached_includes;
739 int nb_cached_includes;
741 /* #pragma pack stack */
742 int pack_stack[PACK_STACK_SIZE];
743 int *pack_stack_ptr;
744 char **pragma_libs;
745 int nb_pragma_libs;
747 /* inline functions are stored as token lists and compiled last
748 only if referenced */
749 struct InlineFunc **inline_fns;
750 int nb_inline_fns;
752 /* sections */
753 Section **sections;
754 int nb_sections; /* number of sections, including first dummy section */
756 Section **priv_sections;
757 int nb_priv_sections; /* number of private sections */
759 /* got & plt handling */
760 Section *got;
761 Section *plt;
763 /* temporary dynamic symbol sections (for dll loading) */
764 Section *dynsymtab_section;
765 /* exported dynamic symbol section */
766 Section *dynsym;
767 /* copy of the global symtab_section variable */
768 Section *symtab;
769 /* extra attributes (eg. GOT/PLT value) for symtab symbols */
770 struct sym_attr *sym_attrs;
771 int nb_sym_attrs;
772 /* tiny assembler state */
773 Sym *asm_labels;
775 #ifdef TCC_TARGET_PE
776 /* PE info */
777 int pe_subsystem;
778 unsigned pe_characteristics;
779 unsigned pe_file_align;
780 unsigned pe_stack_size;
781 # ifdef TCC_TARGET_X86_64
782 Section *uw_pdata;
783 int uw_sym;
784 unsigned uw_offs;
785 # endif
786 #endif
788 #ifdef TCC_IS_NATIVE
789 const char *runtime_main;
790 void **runtime_mem;
791 int nb_runtime_mem;
792 #endif
794 /* used by main and tcc_parse_args only */
795 struct filespec **files; /* files seen on command line */
796 int nb_files; /* number thereof */
797 int nb_libraries; /* number of libs thereof */
798 int filetype;
799 char *outfile; /* output filename */
800 int option_r; /* option -r */
801 int do_bench; /* option -bench */
802 int gen_deps; /* option -MD */
803 char *deps_outfile; /* option -MF */
804 int option_pthread; /* -pthread option */
805 int argc;
806 char **argv;
809 struct filespec {
810 char type;
811 char alacarte;
812 char name[1];
815 /* The current value can be: */
816 #define VT_VALMASK 0x003f /* mask for value location, register or: */
817 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
818 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
819 #define VT_LOCAL 0x0032 /* offset on stack */
820 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
821 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
822 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
823 #define VT_LVAL 0x0100 /* var is an lvalue */
824 #define VT_SYM 0x0200 /* a symbol value is added */
825 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
826 char/short stored in integer registers) */
827 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
828 dereferencing value */
829 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
830 bounding function call point is in vc */
831 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
832 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
833 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
834 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
836 /* types */
837 #define VT_BTYPE 0x000f /* mask for basic type */
838 #define VT_INT 0 /* integer type */
839 #define VT_BYTE 1 /* signed byte type */
840 #define VT_SHORT 2 /* short type */
841 #define VT_VOID 3 /* void type */
842 #define VT_PTR 4 /* pointer */
843 #define VT_ENUM 5 /* enum definition */
844 #define VT_FUNC 6 /* function type */
845 #define VT_STRUCT 7 /* struct/union definition */
846 #define VT_FLOAT 8 /* IEEE float */
847 #define VT_DOUBLE 9 /* IEEE double */
848 #define VT_LDOUBLE 10 /* IEEE long double */
849 #define VT_BOOL 11 /* ISOC99 boolean type */
850 #define VT_LLONG 12 /* 64 bit integer */
851 #define VT_LONG 13 /* long integer (NEVER USED as type, only
852 during parsing) */
853 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
854 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
855 #define VT_UNSIGNED 0x0010 /* unsigned type */
856 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
857 #define VT_BITFIELD 0x0040 /* bitfield modifier */
858 #define VT_CONSTANT 0x0800 /* const modifier */
859 #define VT_VOLATILE 0x1000 /* volatile modifier */
860 #define VT_DEFSIGN 0x2000 /* signed type */
861 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
863 /* storage */
864 #define VT_EXTERN 0x00000080 /* extern definition */
865 #define VT_STATIC 0x00000100 /* static variable */
866 #define VT_TYPEDEF 0x00000200 /* typedef definition */
867 #define VT_INLINE 0x00000400 /* inline definition */
868 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
869 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
870 #define VT_WEAK 0x00010000 /* weak symbol */
871 #define VT_TLS 0x00040000 /* thread-local storage */
872 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
873 bitfield values, because bitfields never
874 have linkage and hence never have
875 visibility. */
876 #define VT_VIS_SIZE 2 /* We have four visibilities. */
877 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
879 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
882 /* type mask (except storage) */
883 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
884 #define VT_TYPE (~(VT_STORAGE))
886 /* token values */
888 /* warning: the following compare tokens depend on i386 asm code */
889 #define TOK_ULT 0x92
890 #define TOK_UGE 0x93
891 #define TOK_EQ 0x94
892 #define TOK_NE 0x95
893 #define TOK_ULE 0x96
894 #define TOK_UGT 0x97
895 #define TOK_Nset 0x98
896 #define TOK_Nclear 0x99
897 #define TOK_LT 0x9c
898 #define TOK_GE 0x9d
899 #define TOK_LE 0x9e
900 #define TOK_GT 0x9f
902 #define TOK_LAND 0xa0
903 #define TOK_LOR 0xa1
904 #define TOK_DEC 0xa2
905 #define TOK_MID 0xa3 /* inc/dec, to void constant */
906 #define TOK_INC 0xa4
907 #define TOK_UDIV 0xb0 /* unsigned division */
908 #define TOK_UMOD 0xb1 /* unsigned modulo */
909 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
911 /* tokens that carry values (in additional token string space / tokc) --> */
912 #define TOK_CCHAR 0xb3 /* char constant in tokc */
913 #define TOK_LCHAR 0xb4
914 #define TOK_CINT 0xb5 /* number in tokc */
915 #define TOK_CUINT 0xb6 /* unsigned int constant */
916 #define TOK_CLLONG 0xb7 /* long long constant */
917 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
918 #define TOK_STR 0xb9 /* pointer to string in tokc */
919 #define TOK_LSTR 0xba
920 #define TOK_CFLOAT 0xbb /* float constant */
921 #define TOK_CDOUBLE 0xbc /* double constant */
922 #define TOK_CLDOUBLE 0xbd /* long double constant */
923 #define TOK_PPNUM 0xbe /* preprocessor number */
924 #define TOK_PPSTR 0xbf /* preprocessor string */
925 #define TOK_LINENUM 0xc0 /* line number info */
926 /* <-- */
928 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
929 #define TOK_ADDC1 0xc3 /* add with carry generation */
930 #define TOK_ADDC2 0xc4 /* add with carry use */
931 #define TOK_SUBC1 0xc5 /* add with carry generation */
932 #define TOK_SUBC2 0xc6 /* add with carry use */
933 #define TOK_ARROW 0xc7
934 #define TOK_DOTS 0xc8 /* three dots */
935 #define TOK_SHR 0xc9 /* unsigned shift right */
936 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
937 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
938 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
939 #define TOK_PPJOIN 0xce /* A '##' in the right position to mean pasting */
941 #define TOK_SHL 0x01 /* shift left */
942 #define TOK_SAR 0x02 /* signed shift right */
944 /* assignment operators : normal operator or 0x80 */
945 #define TOK_A_MOD 0xa5
946 #define TOK_A_AND 0xa6
947 #define TOK_A_MUL 0xaa
948 #define TOK_A_ADD 0xab
949 #define TOK_A_SUB 0xad
950 #define TOK_A_DIV 0xaf
951 #define TOK_A_XOR 0xde
952 #define TOK_A_OR 0xfc
953 #define TOK_A_SHL 0x81
954 #define TOK_A_SAR 0x82
956 #ifndef offsetof
957 #define offsetof(type, field) ((size_t) &((type *)0)->field)
958 #endif
960 #ifndef countof
961 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
962 #endif
964 #define TOK_EOF (-1) /* end of file */
965 #define TOK_LINEFEED 10 /* line feed */
967 /* all identifiers and strings have token above that */
968 #define TOK_IDENT 256
970 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
971 #define TOK_ASM_int TOK_INT
972 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
973 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
974 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
976 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
977 /* only used for i386 asm opcodes definitions */
978 #define DEF_BWL(x) \
979 DEF(TOK_ASM_ ## x ## b, #x "b") \
980 DEF(TOK_ASM_ ## x ## w, #x "w") \
981 DEF(TOK_ASM_ ## x ## l, #x "l") \
982 DEF(TOK_ASM_ ## x, #x)
983 #define DEF_WL(x) \
984 DEF(TOK_ASM_ ## x ## w, #x "w") \
985 DEF(TOK_ASM_ ## x ## l, #x "l") \
986 DEF(TOK_ASM_ ## x, #x)
987 #ifdef TCC_TARGET_X86_64
988 # define DEF_BWLQ(x) \
989 DEF(TOK_ASM_ ## x ## b, #x "b") \
990 DEF(TOK_ASM_ ## x ## w, #x "w") \
991 DEF(TOK_ASM_ ## x ## l, #x "l") \
992 DEF(TOK_ASM_ ## x ## q, #x "q") \
993 DEF(TOK_ASM_ ## x, #x)
994 # define DEF_WLQ(x) \
995 DEF(TOK_ASM_ ## x ## w, #x "w") \
996 DEF(TOK_ASM_ ## x ## l, #x "l") \
997 DEF(TOK_ASM_ ## x ## q, #x "q") \
998 DEF(TOK_ASM_ ## x, #x)
999 # define DEF_BWLX DEF_BWLQ
1000 # define DEF_WLX DEF_WLQ
1001 /* number of sizes + 1 */
1002 # define NBWLX 5
1003 #else
1004 # define DEF_BWLX DEF_BWL
1005 # define DEF_WLX DEF_WL
1006 /* number of sizes + 1 */
1007 # define NBWLX 4
1008 #endif
1010 #define DEF_FP1(x) \
1011 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
1012 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
1013 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
1014 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
1016 #define DEF_FP(x) \
1017 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
1018 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
1019 DEF_FP1(x)
1021 #define DEF_ASMTEST(x,suffix) \
1022 DEF_ASM(x ## o ## suffix) \
1023 DEF_ASM(x ## no ## suffix) \
1024 DEF_ASM(x ## b ## suffix) \
1025 DEF_ASM(x ## c ## suffix) \
1026 DEF_ASM(x ## nae ## suffix) \
1027 DEF_ASM(x ## nb ## suffix) \
1028 DEF_ASM(x ## nc ## suffix) \
1029 DEF_ASM(x ## ae ## suffix) \
1030 DEF_ASM(x ## e ## suffix) \
1031 DEF_ASM(x ## z ## suffix) \
1032 DEF_ASM(x ## ne ## suffix) \
1033 DEF_ASM(x ## nz ## suffix) \
1034 DEF_ASM(x ## be ## suffix) \
1035 DEF_ASM(x ## na ## suffix) \
1036 DEF_ASM(x ## nbe ## suffix) \
1037 DEF_ASM(x ## a ## suffix) \
1038 DEF_ASM(x ## s ## suffix) \
1039 DEF_ASM(x ## ns ## suffix) \
1040 DEF_ASM(x ## p ## suffix) \
1041 DEF_ASM(x ## pe ## suffix) \
1042 DEF_ASM(x ## np ## suffix) \
1043 DEF_ASM(x ## po ## suffix) \
1044 DEF_ASM(x ## l ## suffix) \
1045 DEF_ASM(x ## nge ## suffix) \
1046 DEF_ASM(x ## nl ## suffix) \
1047 DEF_ASM(x ## ge ## suffix) \
1048 DEF_ASM(x ## le ## suffix) \
1049 DEF_ASM(x ## ng ## suffix) \
1050 DEF_ASM(x ## nle ## suffix) \
1051 DEF_ASM(x ## g ## suffix)
1053 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1055 enum tcc_token {
1056 TOK_LAST = TOK_IDENT - 1
1057 #define DEF(id, str) ,id
1058 #include "tcctok.h"
1059 #undef DEF
1062 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1063 #define TOK_UIDENT TOK_DEFINE
1065 /* ------------ libtcc.c ------------ */
1067 /* use GNU C extensions */
1068 ST_DATA int gnu_ext;
1069 /* use Tiny C extensions */
1070 ST_DATA int tcc_ext;
1071 /* XXX: get rid of this ASAP */
1072 ST_DATA struct TCCState *tcc_state;
1074 /* public functions currently used by the tcc main function */
1075 ST_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1076 ST_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1077 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1078 PUB_FUNC char *tcc_basename(const char *name);
1079 PUB_FUNC char *tcc_fileextension (const char *name);
1081 #ifndef MEM_DEBUG
1082 PUB_FUNC void tcc_free(void *ptr);
1083 PUB_FUNC void *tcc_malloc(unsigned long size);
1084 PUB_FUNC void *tcc_mallocz(unsigned long size);
1085 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1086 PUB_FUNC char *tcc_strdup(const char *str);
1087 #else
1088 #define tcc_free(ptr) tcc_free_debug(ptr)
1089 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1090 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1091 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1092 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1093 PUB_FUNC void tcc_free_debug(void *ptr);
1094 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1095 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1096 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1097 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1098 #endif
1100 #define free(p) use_tcc_free(p)
1101 #define malloc(s) use_tcc_malloc(s)
1102 #define realloc(p, s) use_tcc_realloc(p, s)
1103 #undef strdup
1104 #define strdup(s) use_tcc_strdup(s)
1105 PUB_FUNC void tcc_memcheck(void);
1106 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1107 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1108 PUB_FUNC void tcc_warning(const char *fmt, ...);
1110 /* other utilities */
1111 ST_FUNC void dynarray_add(void *ptab, int *nb_ptr, void *data);
1112 ST_FUNC void dynarray_reset(void *pp, int *n);
1113 ST_INLN void cstr_ccat(CString *cstr, int ch);
1114 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1115 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1116 ST_FUNC void cstr_new(CString *cstr);
1117 ST_FUNC void cstr_free(CString *cstr);
1118 ST_FUNC void cstr_reset(CString *cstr);
1120 ST_INLN void sym_free(Sym *sym);
1121 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1122 ST_FUNC Sym *sym_find2(Sym *s, int v);
1123 ST_FUNC Sym *sym_push(int v, CType *type, int r, long c);
1124 ST_FUNC void sym_pop(Sym **ptop, Sym *b, int keep);
1125 ST_INLN Sym *struct_find(int v);
1126 ST_INLN Sym *sym_find(int v);
1127 ST_FUNC Sym *global_identifier_push(int v, int t, long c);
1129 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1130 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1131 ST_FUNC void tcc_close(void);
1133 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1134 /* flags: */
1135 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1136 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1137 #define AFF_PREPROCESS 0x40 /* preprocess file */
1138 /* combined with: */
1139 #define AFF_TYPE_NONE 0
1140 #define AFF_TYPE_C 1
1141 #define AFF_TYPE_ASM 2
1142 #define AFF_TYPE_ASMPP 3
1143 #define AFF_TYPE_BIN 4
1144 #define AFF_TYPE_LIB 5
1145 /* values from tcc_object_type(...) */
1146 #define AFF_BINTYPE_REL 1
1147 #define AFF_BINTYPE_DYN 2
1148 #define AFF_BINTYPE_AR 3
1149 #define AFF_BINTYPE_C67 4
1152 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1153 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1154 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1155 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1156 PUB_FUNC void tcc_print_stats(TCCState *s, unsigned total_time);
1157 PUB_FUNC int tcc_parse_args(TCCState *s, int *argc, char ***argv, int optind);
1158 #ifdef _WIN32
1159 ST_FUNC char *normalize_slashes(char *path);
1160 #endif
1162 /* tcc_parse_args return codes: */
1163 #define OPT_HELP 1
1164 #define OPT_HELP2 2
1165 #define OPT_V 3
1166 #define OPT_PRINT_DIRS 4
1167 #define OPT_AR 5
1168 #define OPT_IMPDEF 6
1169 #define OPT_M32 32
1170 #define OPT_M64 64
1172 /* ------------ tccpp.c ------------ */
1174 ST_DATA struct BufferedFile *file;
1175 ST_DATA int ch, tok;
1176 ST_DATA CValue tokc;
1177 ST_DATA const int *macro_ptr;
1178 ST_DATA int parse_flags;
1179 ST_DATA int tok_flags;
1180 ST_DATA CString tokcstr; /* current parsed string, if any */
1182 /* display benchmark infos */
1183 ST_DATA int total_lines;
1184 ST_DATA int total_bytes;
1185 ST_DATA int tok_ident;
1186 ST_DATA TokenSym **table_ident;
1188 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1189 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1190 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1191 #define TOK_FLAG_EOF 0x0008 /* end of file */
1193 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1194 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1195 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1196 token. line feed is also
1197 returned at eof */
1198 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1199 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1200 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1201 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1203 /* isidnum_table flags: */
1204 #define IS_SPC 1
1205 #define IS_ID 2
1206 #define IS_NUM 4
1208 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1209 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1210 ST_FUNC void begin_macro(TokenString *str, int alloc);
1211 ST_FUNC void end_macro(void);
1212 ST_FUNC void set_idnum(int c, int val);
1213 ST_FUNC void save_parse_state(ParseState *s);
1214 ST_FUNC void restore_parse_state(ParseState *s);
1215 ST_INLN void tok_str_new(TokenString *s);
1216 ST_FUNC TokenString *tok_str_alloc(void);
1217 ST_FUNC void tok_str_free(TokenString *s);
1218 ST_FUNC void tok_str_free_str(int *str);
1219 ST_FUNC void tok_str_add(TokenString *s, int t);
1220 ST_FUNC void tok_str_add_tok(TokenString *s);
1221 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1222 ST_FUNC void define_undef(Sym *s);
1223 ST_INLN Sym *define_find(int v);
1224 ST_FUNC void free_defines(Sym *b);
1225 ST_FUNC Sym *label_find(int v);
1226 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1227 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1228 ST_FUNC void parse_define(void);
1229 ST_FUNC void preprocess(int is_bof);
1230 ST_FUNC void next_nomacro(void);
1231 ST_FUNC void next(void);
1232 ST_INLN void unget_tok(int last_tok);
1233 ST_FUNC void preprocess_start(TCCState *s1);
1234 ST_FUNC void tccpp_new(TCCState *s);
1235 ST_FUNC void tccpp_delete(TCCState *s);
1236 ST_FUNC int tcc_preprocess(TCCState *s1);
1237 ST_FUNC void skip(int c);
1238 ST_FUNC NORETURN void expect(const char *msg);
1240 /* space excluding newline */
1241 static inline int is_space(int ch) {
1242 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1244 static inline int isid(int c) {
1245 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1247 static inline int isnum(int c) {
1248 return c >= '0' && c <= '9';
1250 static inline int isoct(int c) {
1251 return c >= '0' && c <= '7';
1253 static inline int toup(int c) {
1254 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1257 /* ------------ tccgen.c ------------ */
1259 #define SYM_POOL_NB (8192 / sizeof(Sym))
1260 ST_DATA Sym *sym_free_first;
1261 ST_DATA void **sym_pools;
1262 ST_DATA int nb_sym_pools;
1264 ST_DATA Sym *global_stack;
1265 ST_DATA Sym *local_stack;
1266 ST_DATA Sym *local_label_stack;
1267 ST_DATA Sym *global_label_stack;
1268 ST_DATA Sym *define_stack;
1269 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1270 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop;
1271 #define vstack (__vstack + 1)
1272 ST_DATA int rsym, anon_sym, ind, loc;
1274 ST_DATA int const_wanted; /* true if constant wanted */
1275 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1276 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1277 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1278 ST_DATA int func_var; /* true if current function is variadic */
1279 ST_DATA int func_vc;
1280 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1281 ST_DATA const char *funcname;
1283 ST_FUNC void tcc_debug_start(TCCState *s1);
1284 ST_FUNC void tcc_debug_end(TCCState *s1);
1285 ST_FUNC void tcc_debug_funcstart(TCCState *s1, Sym *sym);
1286 ST_FUNC void tcc_debug_funcend(TCCState *s1, int size);
1287 ST_FUNC void tcc_debug_line(TCCState *s1);
1289 ST_FUNC void tccgen_start(TCCState *s1);
1290 ST_FUNC void tccgen_end(TCCState *s1);
1292 ST_FUNC void free_inline_functions(TCCState *s);
1293 ST_FUNC void check_vstack(void);
1295 ST_INLN int is_float(int t);
1296 ST_FUNC int ieee_finite(double d);
1297 ST_FUNC void test_lvalue(void);
1298 ST_FUNC void vpushi(int v);
1299 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1300 ST_FUNC void vset(CType *type, int r, long v);
1301 ST_FUNC void vswap(void);
1302 ST_FUNC void vpush_global_sym(CType *type, int v);
1303 ST_FUNC void vrote(SValue *e, int n);
1304 ST_FUNC void vrott(int n);
1305 ST_FUNC void vrotb(int n);
1306 #ifdef TCC_TARGET_ARM
1307 ST_FUNC int get_reg_ex(int rc, int rc2);
1308 ST_FUNC void lexpand_nr(void);
1309 #endif
1310 ST_FUNC void vpushv(SValue *v);
1311 ST_FUNC void save_reg(int r);
1312 ST_FUNC void save_reg_upstack(int r, int n);
1313 ST_FUNC int get_reg(int rc);
1314 ST_FUNC void save_regs(int n);
1315 ST_FUNC void gaddrof(void);
1316 ST_FUNC int gv(int rc);
1317 ST_FUNC void gv2(int rc1, int rc2);
1318 ST_FUNC void vpop(void);
1319 ST_FUNC void gen_op(int op);
1320 ST_FUNC int type_size(CType *type, int *a);
1321 ST_FUNC void mk_pointer(CType *type);
1322 ST_FUNC void vstore(void);
1323 ST_FUNC void inc(int post, int c);
1324 ST_FUNC void parse_mult_str (CString *astr, const char *msg);
1325 ST_FUNC void parse_asm_str(CString *astr);
1326 ST_FUNC int lvalue_type(int t);
1327 ST_FUNC void indir(void);
1328 ST_FUNC void unary(void);
1329 ST_FUNC void expr_prod(void);
1330 ST_FUNC void expr_sum(void);
1331 ST_FUNC void gexpr(void);
1332 ST_FUNC int expr_const(void);
1333 ST_FUNC void decl(int l);
1334 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1335 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1336 #endif
1337 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1338 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1339 #endif
1341 /* ------------ tccelf.c ------------ */
1343 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1344 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1345 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1347 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1349 typedef struct {
1350 unsigned int n_strx; /* index into string table of name */
1351 unsigned char n_type; /* type of symbol */
1352 unsigned char n_other; /* misc info (usually empty) */
1353 unsigned short n_desc; /* description field */
1354 unsigned int n_value; /* value of symbol */
1355 } Stab_Sym;
1357 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1358 ST_DATA Section *common_section;
1359 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1360 #ifdef CONFIG_TCC_ASM
1361 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1362 #endif
1363 #ifdef CONFIG_TCC_BCHECK
1364 /* bound check related sections */
1365 ST_DATA Section *bounds_section; /* contains global data bound description */
1366 ST_DATA Section *lbounds_section; /* contains local data bound description */
1367 ST_FUNC void tccelf_bounds_new(TCCState *s);
1368 #endif
1369 /* symbol sections */
1370 ST_DATA Section *symtab_section, *strtab_section;
1371 /* debug sections */
1372 ST_DATA Section *stab_section, *stabstr_section;
1374 ST_FUNC void tccelf_new(TCCState *s);
1375 ST_FUNC void tccelf_delete(TCCState *s);
1376 ST_FUNC void tccelf_stab_new(TCCState *s);
1378 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1379 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1380 ST_FUNC size_t section_add(Section *sec, addr_t size, int align);
1381 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1382 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1383 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1384 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);
1386 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1387 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1388 #if PTR_SIZE == 4
1389 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1390 #endif
1391 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1393 ST_FUNC int put_elf_str(Section *s, const char *sym);
1394 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1395 ST_FUNC int set_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1396 ST_FUNC int find_elf_sym(Section *s, const char *name);
1397 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1398 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1400 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1401 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1402 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1403 ST_FUNC void put_stabd(int type, int other, int desc);
1405 ST_FUNC void relocate_common_syms(void);
1406 ST_FUNC void relocate_syms(TCCState *s1, Section *symtab, int do_resolve);
1407 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1409 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1410 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1411 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1412 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1413 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1414 ST_FUNC void tcc_add_runtime(TCCState *s1);
1416 ST_FUNC void build_got_entries(TCCState *s1);
1417 ST_FUNC struct sym_attr *get_sym_attr(TCCState *s1, int index, int alloc);
1418 ST_FUNC void squeeze_multi_relocs(Section *sec, size_t oldrelocoffset);
1420 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1421 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1422 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1423 #endif
1425 #ifndef TCC_TARGET_PE
1426 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1427 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1428 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1429 ST_FUNC void minp(void);
1430 ST_INLN void inp(void);
1431 ST_FUNC int handle_eob(void);
1432 #endif
1434 /* ------------ xxx-link.c ------------ */
1436 /* Wether to generate a GOT/PLT entry and when. NO_GOTPLT_ENTRY is first so
1437 that unknown relocation don't create a GOT or PLT entry */
1438 enum gotplt_entry {
1439 NO_GOTPLT_ENTRY, /* never generate (eg. GLOB_DAT & JMP_SLOT relocs) */
1440 BUILD_GOT_ONLY, /* only build GOT (eg. TPOFF relocs) */
1441 AUTO_GOTPLT_ENTRY, /* generate if sym is UNDEF */
1442 ALWAYS_GOTPLT_ENTRY /* always generate (eg. PLTOFF relocs) */
1445 ST_FUNC int code_reloc (int reloc_type);
1446 ST_FUNC int gotplt_entry_type (int reloc_type);
1447 ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr);
1448 ST_FUNC void relocate_init(Section *sr);
1449 ST_FUNC void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val);
1450 ST_FUNC void relocate_plt(TCCState *s1);
1452 /* ------------ xxx-gen.c ------------ */
1454 ST_DATA const int reg_classes[NB_REGS];
1456 ST_FUNC void gsym_addr(int t, int a);
1457 ST_FUNC void gsym(int t);
1458 ST_FUNC void load(int r, SValue *sv);
1459 ST_FUNC void store(int r, SValue *v);
1460 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1461 ST_FUNC void gfunc_call(int nb_args);
1462 ST_FUNC void gfunc_prolog(CType *func_type);
1463 ST_FUNC void gfunc_epilog(void);
1464 ST_FUNC int gjmp(int t);
1465 ST_FUNC void gjmp_addr(int a);
1466 ST_FUNC int gtst(int inv, int t);
1467 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1468 ST_FUNC void gtst_addr(int inv, int a);
1469 #else
1470 #define gtst_addr(inv, a) gsym_addr(gtst(inv, 0), a)
1471 #endif
1472 ST_FUNC void gen_opi(int op);
1473 ST_FUNC void gen_opf(int op);
1474 ST_FUNC void gen_cvt_ftoi(int t);
1475 ST_FUNC void gen_cvt_ftof(int t);
1476 ST_FUNC void ggoto(void);
1477 #ifndef TCC_TARGET_C67
1478 ST_FUNC void o(unsigned int c);
1479 #endif
1480 #ifndef TCC_TARGET_ARM
1481 ST_FUNC void gen_cvt_itof(int t);
1482 #endif
1483 ST_FUNC void gen_vla_sp_save(int addr);
1484 ST_FUNC void gen_vla_sp_restore(int addr);
1485 ST_FUNC void gen_vla_alloc(CType *type, int align);
1487 static inline uint16_t read16le(unsigned char *p) {
1488 return p[0] | (uint16_t)p[1] << 8;
1490 static inline void write16le(unsigned char *p, uint16_t x) {
1491 p[0] = x & 255, p[1] = x >> 8 & 255;
1493 static inline uint32_t read32le(unsigned char *p) {
1494 return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1496 static inline void write32le(unsigned char *p, uint32_t x) {
1497 write16le(p, x), write16le(p + 2, x >> 16);
1499 static inline void add32le(unsigned char *p, int32_t x) {
1500 write32le(p, read32le(p) + x);
1502 static inline uint64_t read64le(unsigned char *p) {
1503 return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1505 static inline void write64le(unsigned char *p, uint64_t x) {
1506 write32le(p, x), write32le(p + 4, x >> 32);
1508 static inline void add64le(unsigned char *p, int64_t x) {
1509 write64le(p, read64le(p) + x);
1512 /* ------------ i386-gen.c ------------ */
1513 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1514 ST_FUNC void g(int c);
1515 ST_FUNC void gen_le16(int c);
1516 ST_FUNC void gen_le32(int c);
1517 ST_FUNC void gen_addr32(int r, Sym *sym, long c);
1518 ST_FUNC void gen_addrpc32(int r, Sym *sym, long c);
1519 #endif
1521 #ifdef CONFIG_TCC_BCHECK
1522 ST_FUNC void gen_bounded_ptr_add(void);
1523 ST_FUNC void gen_bounded_ptr_deref(void);
1524 #endif
1526 /* ------------ x86_64-gen.c ------------ */
1527 #ifdef TCC_TARGET_X86_64
1528 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1529 ST_FUNC void gen_opl(int op);
1530 #endif
1532 /* ------------ arm-gen.c ------------ */
1533 #ifdef TCC_TARGET_ARM
1534 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1535 PUB_FUNC const char *default_elfinterp(struct TCCState *s);
1536 #endif
1537 ST_FUNC void arm_init(struct TCCState *s);
1538 ST_FUNC void gen_cvt_itof1(int t);
1539 #endif
1541 /* ------------ arm64-gen.c ------------ */
1542 #ifdef TCC_TARGET_ARM64
1543 ST_FUNC void gen_cvt_sxtw(void);
1544 ST_FUNC void gen_opl(int op);
1545 ST_FUNC void gfunc_return(CType *func_type);
1546 ST_FUNC void gen_va_start(void);
1547 ST_FUNC void gen_va_arg(CType *t);
1548 ST_FUNC void gen_clear_cache(void);
1549 #endif
1551 /* ------------ c67-gen.c ------------ */
1552 #ifdef TCC_TARGET_C67
1553 #endif
1555 /* ------------ tcccoff.c ------------ */
1557 #ifdef TCC_TARGET_COFF
1558 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1559 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1560 #endif
1562 /* ------------ tccasm.c ------------ */
1563 ST_FUNC void asm_instr(void);
1564 ST_FUNC void asm_global_instr(void);
1565 #ifdef CONFIG_TCC_ASM
1566 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1567 ST_FUNC Sym* get_asm_sym(int name, Sym *csym);
1568 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1569 ST_FUNC int asm_int_expr(TCCState *s1);
1570 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1571 /* ------------ i386-asm.c ------------ */
1572 ST_FUNC void gen_expr32(ExprValue *pe);
1573 #ifdef TCC_TARGET_X86_64
1574 ST_FUNC void gen_expr64(ExprValue *pe);
1575 #endif
1576 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1577 ST_FUNC int asm_parse_regvar(int t);
1578 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1579 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1580 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1581 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1582 #endif
1584 /* ------------ tccpe.c -------------- */
1585 #ifdef TCC_TARGET_PE
1586 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1587 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1588 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1589 #ifndef TCC_TARGET_ARM
1590 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1591 #endif
1592 #ifdef TCC_TARGET_X86_64
1593 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1594 #endif
1595 PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp);
1596 /* symbol properties stored in Elf32_Sym->st_other */
1597 # define ST_PE_EXPORT 0x10
1598 # define ST_PE_IMPORT 0x20
1599 # define ST_PE_STDCALL 0x40
1600 #endif
1602 /* ------------ tccrun.c ----------------- */
1603 #ifdef TCC_IS_NATIVE
1604 #ifdef CONFIG_TCC_STATIC
1605 #define RTLD_LAZY 0x001
1606 #define RTLD_NOW 0x002
1607 #define RTLD_GLOBAL 0x100
1608 #define RTLD_DEFAULT NULL
1609 /* dummy function for profiling */
1610 ST_FUNC void *dlopen(const char *filename, int flag);
1611 ST_FUNC void dlclose(void *p);
1612 ST_FUNC const char *dlerror(void);
1613 ST_FUNC void *dlsym(void *handle, const char *symbol);
1614 #endif
1615 #ifdef CONFIG_TCC_BACKTRACE
1616 ST_DATA int rt_num_callers;
1617 ST_DATA const char **rt_bound_error_msg;
1618 ST_DATA void *rt_prog_main;
1619 ST_FUNC void tcc_set_num_callers(int n);
1620 #endif
1621 ST_FUNC void tcc_run_free(TCCState *s1);
1622 #endif
1624 /* ------------ tcctools.c ----------------- */
1625 #if 0 /* included in tcc.c */
1626 ST_FUNC int tcc_tool_ar(TCCState *s, int argc, char **argv);
1627 #ifdef TCC_TARGET_PE
1628 ST_FUNC int tcc_tool_impdef(TCCState *s, int argc, char **argv);
1629 #endif
1630 ST_FUNC void tcc_tool_cross(TCCState *s, char **argv, int option);
1631 ST_FUNC void gen_makedeps(TCCState *s, const char *target, const char *filename);
1632 #endif
1634 /********************************************************/
1635 #undef ST_DATA
1636 #ifdef ONE_SOURCE
1637 #define ST_DATA static
1638 #else
1639 #define ST_DATA
1640 #endif
1641 /********************************************************/
1642 #endif /* _TCC_H */