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Revert all of my changes to directories & codingstyle.
[tinycc.git] / tcc.h
blob567c2945e940d40755c6a8815eb72675458b1642
1 /*
2 * TCC - Tiny C Compiler
3 *
4 * Copyright (c) 2001-2004 Fabrice Bellard
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #ifndef _TCC_H
22 #define _TCC_H
23
24 #define _GNU_SOURCE
25 #include "config.h"
26
27 #ifdef CONFIG_TCCBOOT
28 #include "tccboot.h"
29 #define CONFIG_TCC_STATIC
30 #else
31
32 #include <stdlib.h>
33 #include <stdio.h>
34 #include <stdarg.h>
35 #include <string.h>
36 #include <errno.h>
37 #include <math.h>
38 #include <signal.h>
39 #include <fcntl.h>
40 #include <setjmp.h>
41 #include <time.h>
42
43 #ifdef CONFIG_TCCASSERT
44 #include <assert.h>
45 #define TCC_ASSERT(ex) assert(ex)
46 #else
47 #define TCC_ASSERT(ex)
48 #endif
49
50 #ifndef _WIN32
51 # include <unistd.h>
52 # include <sys/time.h>
53 # include <sys/ucontext.h>
54 # include <sys/mman.h>
55 # ifndef CONFIG_TCC_STATIC
56 # include <dlfcn.h>
57 # endif
58 /* XXX: need to define this to use them in non ISOC99 context */
59 extern float strtof (const char *__nptr, char **__endptr);
60 extern long double strtold (const char *__nptr, char **__endptr);
61 #else /* on _WIN32: */
62 # include <windows.h>
63 # include <sys/timeb.h>
64 # include <io.h> /* open, close etc. */
65 # include <direct.h> /* getcwd */
66 # ifdef __GNUC__
67 # include <stdint.h>
68 # endif
69 # define inline __inline
70 # define inp next_inp
71 # define snprintf _snprintf
72 # define vsnprintf _vsnprintf
73 # ifndef __GNUC__
74 # define strtold (long double)strtod
75 # define strtof (float)strtod
76 # define strtoll _strtoi64
77 # define strtoull _strtoui64
78 # endif
79 # ifdef LIBTCC_AS_DLL
80 # define LIBTCCAPI __declspec(dllexport)
81 # define PUB_FUNC LIBTCCAPI
82 # endif
83 #endif
84
85 #endif /* !CONFIG_TCCBOOT */
86
87 #ifndef O_BINARY
88 # define O_BINARY 0
89 #endif
90
91 #ifdef __GNUC__
92 # define NORETURN __attribute__ ((noreturn))
93 #elif defined _MSC_VER
94 # define NORETURN __declspec(noreturn)
95 #else
96 # define NORETURN
97 #endif
98
99 #ifdef _WIN32
100 # define IS_DIRSEP(c) (c == '/' || c == '\\')
101 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
102 # define PATHCMP stricmp
103 #else
104 # define IS_DIRSEP(c) (c == '/')
105 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
106 # define PATHCMP strcmp
107 #endif
108
109 #ifdef TCC_TARGET_PE
110 #define PATHSEP ';'
111 #else
112 #define PATHSEP ':'
113 #endif
114
115 #include "elf.h"
116 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
117 # define ELFCLASSW ELFCLASS64
118 # define ElfW(type) Elf##64##_##type
119 # define ELFW(type) ELF##64##_##type
120 # define ElfW_Rel ElfW(Rela)
121 # define SHT_RELX SHT_RELA
122 # define REL_SECTION_FMT ".rela%s"
123 /* XXX: DLL with PLT would only work with x86-64 for now */
124 # define TCC_OUTPUT_DLL_WITH_PLT
125 #else
126 # define ELFCLASSW ELFCLASS32
127 # define ElfW(type) Elf##32##_##type
128 # define ELFW(type) ELF##32##_##type
129 # define ElfW_Rel ElfW(Rel)
130 # define SHT_RELX SHT_REL
131 # define REL_SECTION_FMT ".rel%s"
132 #endif
133
134 /* target address type */
135 #define addr_t ElfW(Addr)
136
137 #include "stab.h"
138 #include "libtcc.h"
139
140 /* parser debug */
141 /* #define PARSE_DEBUG */
142 /* preprocessor debug */
143 /* #define PP_DEBUG */
144 /* include file debug */
145 /* #define INC_DEBUG */
146 /* memory leak debug */
147 /* #define MEM_DEBUG */
148 /* assembler debug */
149 /* #define ASM_DEBUG */
150
151 /* target selection */
152 /* #define TCC_TARGET_I386 *//* i386 code generator */
153 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
154 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
155 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
156 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
157
158 /* default target is I386 */
159 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
160 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
161 !defined(TCC_TARGET_X86_64)
162 #define TCC_TARGET_I386
163 #endif
164
165 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
166 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
167 !defined(CONFIG_USE_LIBGCC)
168 #define CONFIG_TCC_BCHECK /* enable bound checking code */
169 #endif
170
171 /* define it to include assembler support */
172 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
173 !defined(TCC_TARGET_C67)
174 #define CONFIG_TCC_ASM
175 #endif
176
177 /* object format selection */
178 #if defined(TCC_TARGET_C67)
179 #define TCC_TARGET_COFF
180 #endif
181
182 /* only native compiler supports -run */
183 #if defined _WIN32 == defined TCC_TARGET_PE
184 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
185 # define TCC_IS_NATIVE
186 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
187 # define TCC_IS_NATIVE
188 # elif defined __arm__ && defined TCC_TARGET_ARM
189 # define TCC_IS_NATIVE
190 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
191 # define TCC_IS_NATIVE
192 # endif
193 #endif
194
195 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
196 # define CONFIG_TCC_BACKTRACE
197 #endif
198
199 /* ------------ path configuration ------------ */
200
201 #ifndef CONFIG_SYSROOT
202 # define CONFIG_SYSROOT ""
203 #endif
204 #ifndef CONFIG_TCCDIR
205 # define CONFIG_TCCDIR "."
206 #endif
207 #ifndef CONFIG_LDDIR
208 # ifdef TCC_TARGET_X86_64
209 # define CONFIG_LDDIR "lib64"
210 # else
211 # define CONFIG_LDDIR "lib"
212 # endif
213 #endif
214
215 #ifdef CONFIG_MULTIARCHDIR
216 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
217 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
218 #else
219 # define USE_MUADIR(s) s
220 # define ALSO_MUADIR(s) s
221 #endif
222
223 /* path to find crt1.o, crti.o and crtn.o */
224 #ifndef CONFIG_TCC_CRTPREFIX
225 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
226 #endif
227
228 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
229
230 /* system include paths */
231 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
232 # ifdef TCC_TARGET_PE
233 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
234 # else
235 # define CONFIG_TCC_SYSINCLUDEPATHS \
236 ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
237 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") \
238 ":" "{B}/include"
239 # endif
240 #endif
241
242 /* library search paths */
243 #ifndef CONFIG_TCC_LIBPATHS
244 # ifdef TCC_TARGET_PE
245 # define CONFIG_TCC_LIBPATHS "{B}/lib"
246 # else
247 # define CONFIG_TCC_LIBPATHS \
248 ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
249 ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
250 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
251 # endif
252 #endif
253
254 /* name of ELF interpreter */
255 #ifndef CONFIG_TCC_ELFINTERP
256 # if defined __FreeBSD__
257 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
258 # elif defined __FreeBSD_kernel__
259 # if defined(TCC_TARGET_X86_64)
260 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
261 # else
262 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
263 # endif
264 # elif defined __DragonFly__
265 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
266 # elif defined __GNU__
267 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
268 # elif defined(TCC_TARGET_PE)
269 # define CONFIG_TCC_ELFINTERP "-"
270 # elif defined(TCC_UCLIBC)
271 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
272 # elif defined TCC_TARGET_ARM64
273 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
274 # elif defined(TCC_TARGET_X86_64)
275 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
276 # elif !defined(TCC_ARM_EABI)
277 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
278 # endif
279 #endif
280
281 /* var elf_interp dans *-gen.c */
282 #ifdef CONFIG_TCC_ELFINTERP
283 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
284 #else
285 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
286 #endif
287
288 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
289 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
290
291 /* -------------------------------------------- */
292 /* include the target specific definitions */
293
294 #define TARGET_DEFS_ONLY
295 #ifdef TCC_TARGET_I386
296 # include "i386-gen.c"
297 #endif
298 #ifdef TCC_TARGET_X86_64
299 # include "x86_64-gen.c"
300 #endif
301 #ifdef TCC_TARGET_ARM
302 # include "arm-gen.c"
303 #endif
304 #ifdef TCC_TARGET_ARM64
305 # include "arm64-gen.c"
306 #endif
307 #ifdef TCC_TARGET_C67
308 # include "coff.h"
309 # include "c67-gen.c"
310 #endif
311 #undef TARGET_DEFS_ONLY
312
313 /* -------------------------------------------- */
314
315 #define INCLUDE_STACK_SIZE 32
316 #define IFDEF_STACK_SIZE 64
317 #define VSTACK_SIZE 256
318 #define STRING_MAX_SIZE 1024
319 #define PACK_STACK_SIZE 8
320
321 #define TOK_HASH_SIZE 8192 /* must be a power of two */
322 #define TOK_ALLOC_INCR 512 /* must be a power of two */
323 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
324
325 /* token symbol management */
326 typedef struct TokenSym {
327 struct TokenSym *hash_next;
328 struct Sym *sym_define; /* direct pointer to define */
329 struct Sym *sym_label; /* direct pointer to label */
330 struct Sym *sym_struct; /* direct pointer to structure */
331 struct Sym *sym_identifier; /* direct pointer to identifier */
332 int tok; /* token number */
333 int len;
334 char str[1];
335 } TokenSym;
336
337 #ifdef TCC_TARGET_PE
338 typedef unsigned short nwchar_t;
339 #else
340 typedef int nwchar_t;
341 #endif
342
343 typedef struct CString {
344 int size; /* size in bytes */
345 void *data; /* either 'char *' or 'nwchar_t *' */
346 int size_allocated;
347 void *data_allocated; /* if non NULL, data has been malloced */
348 } CString;
349
350 /* type definition */
351 typedef struct CType {
352 int t;
353 struct Sym *ref;
354 } CType;
355
356 /* constant value */
357 typedef union CValue {
358 long double ld;
359 double d;
360 float f;
361 int i;
362 unsigned int ui;
363 unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
364 long long ll;
365 unsigned long long ull;
366 struct CString *cstr;
367 addr_t ptr_offset;
368 int tab[LDOUBLE_SIZE/4];
369 } CValue;
370
371 /* value on stack */
372 typedef struct SValue {
373 CType type; /* type */
374 unsigned short r; /* register + flags */
375 unsigned short r2; /* second register, used for 'long long'
376 type. If not used, set to VT_CONST */
377 CValue c; /* constant, if VT_CONST */
378 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */
379 } SValue;
380
381 struct Attribute {
382 unsigned
383 func_call : 3, /* calling convention (0..5), see below */
384 aligned : 5, /* alignement (0..16) */
385 packed : 1,
386 func_export : 1,
387 func_import : 1,
388 func_args : 5,
389 func_proto : 1,
390 mode : 4,
391 weak : 1,
392 visibility : 2,
393 fill : 8; // 8 bits left to fit well in union below
394 };
395
396 /* GNUC attribute definition */
397 typedef struct AttributeDef {
398 struct Attribute a;
399 struct Section *section;
400 int alias_target; /* token */
401 } AttributeDef;
402
403 /* symbol management */
404 typedef struct Sym {
405 int v; /* symbol token */
406 char *asm_label; /* associated asm label */
407 union {
408 long r; /* associated register */
409 struct Attribute a;
410 };
411 union {
412 long c; /* associated number */
413 int *d; /* define token stream */
414 };
415 CType type; /* associated type */
416 union {
417 struct Sym *next; /* next related symbol */
418 long jnext; /* next jump label */
419 };
420 struct Sym *prev; /* prev symbol in stack */
421 struct Sym *prev_tok; /* previous symbol for this token */
422 } Sym;
423
424 /* section definition */
425 /* XXX: use directly ELF structure for parameters ? */
426 /* special flag to indicate that the section should not be linked to
427 the other ones */
428 #define SHF_PRIVATE 0x80000000
429
430 /* special flag, too */
431 #define SECTION_ABS ((void *)1)
432
433 typedef struct Section {
434 unsigned long data_offset; /* current data offset */
435 unsigned char *data; /* section data */
436 unsigned long data_allocated; /* used for realloc() handling */
437 int sh_name; /* elf section name (only used during output) */
438 int sh_num; /* elf section number */
439 int sh_type; /* elf section type */
440 int sh_flags; /* elf section flags */
441 int sh_info; /* elf section info */
442 int sh_addralign; /* elf section alignment */
443 int sh_entsize; /* elf entry size */
444 unsigned long sh_size; /* section size (only used during output) */
445 addr_t sh_addr; /* address at which the section is relocated */
446 unsigned long sh_offset; /* file offset */
447 int nb_hashed_syms; /* used to resize the hash table */
448 struct Section *link; /* link to another section */
449 struct Section *reloc; /* corresponding section for relocation, if any */
450 struct Section *hash; /* hash table for symbols */
451 struct Section *next;
452 char name[1]; /* section name */
453 } Section;
454
455 typedef struct DLLReference {
456 int level;
457 void *handle;
458 char name[1];
459 } DLLReference;
460
461 /* -------------------------------------------------- */
462
463 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
464 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
465 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
466
467 /* stored in 'Sym.c' field */
468 #define FUNC_NEW 1 /* ansi function prototype */
469 #define FUNC_OLD 2 /* old function prototype */
470 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
471
472 /* stored in 'Sym.r' field */
473 #define FUNC_CDECL 0 /* standard c call */
474 #define FUNC_STDCALL 1 /* pascal c call */
475 #define FUNC_FASTCALL1 2 /* first param in %eax */
476 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
477 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
478 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
479
480 /* field 'Sym.t' for macros */
481 #define MACRO_OBJ 0 /* object like macro */
482 #define MACRO_FUNC 1 /* function like macro */
483
484 /* field 'Sym.r' for C labels */
485 #define LABEL_DEFINED 0 /* label is defined */
486 #define LABEL_FORWARD 1 /* label is forward defined */
487 #define LABEL_DECLARED 2 /* label is declared but never used */
488
489 /* type_decl() types */
490 #define TYPE_ABSTRACT 1 /* type without variable */
491 #define TYPE_DIRECT 2 /* type with variable */
492
493 #define IO_BUF_SIZE 8192
494
495 typedef struct BufferedFile {
496 uint8_t *buf_ptr;
497 uint8_t *buf_end;
498 int fd;
499 struct BufferedFile *prev;
500 int line_num; /* current line number - here to simplify code */
501 int line_ref; /* tcc -E: last printed line */
502 int ifndef_macro; /* #ifndef macro / #endif search */
503 int ifndef_macro_saved; /* saved ifndef_macro */
504 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
505 char filename[1024]; /* filename */
506 unsigned char unget[4];
507 unsigned char buffer[1]; /* extra size for CH_EOB char */
508 } BufferedFile;
509
510 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
511 #define CH_EOF (-1) /* end of file */
512
513 /* parsing state (used to save parser state to reparse part of the
514 source several times) */
515 typedef struct ParseState {
516 const int *macro_ptr;
517 int line_num;
518 int tok;
519 CValue tokc;
520 } ParseState;
521
522 /* used to record tokens */
523 typedef struct TokenString {
524 int *str;
525 int len;
526 int allocated_len;
527 int last_line_num;
528 /* used to chain token-strings with begin/end_macro() */
529 struct TokenString *prev;
530 const int *prev_ptr;
531 char alloc;
532 } TokenString;
533
534 /* inline functions */
535 typedef struct InlineFunc {
536 TokenString func_str;
537 Sym *sym;
538 char filename[1];
539 } InlineFunc;
540
541 /* include file cache, used to find files faster and also to eliminate
542 inclusion if the include file is protected by #ifndef ... #endif */
543 typedef struct CachedInclude {
544 int ifndef_macro;
545 int hash_next; /* -1 if none */
546 char filename[1]; /* path specified in #include */
547 } CachedInclude;
548
549 #define CACHED_INCLUDES_HASH_SIZE 512
550
551 #ifdef CONFIG_TCC_ASM
552 typedef struct ExprValue {
553 uint32_t v;
554 Sym *sym;
555 } ExprValue;
556
557 #define MAX_ASM_OPERANDS 30
558 typedef struct ASMOperand {
559 int id; /* GCC 3 optionnal identifier (0 if number only supported */
560 char *constraint;
561 char asm_str[16]; /* computed asm string for operand */
562 SValue *vt; /* C value of the expression */
563 int ref_index; /* if >= 0, gives reference to a output constraint */
564 int input_index; /* if >= 0, gives reference to an input constraint */
565 int priority; /* priority, used to assign registers */
566 int reg; /* if >= 0, register number used for this operand */
567 int is_llong; /* true if double register value */
568 int is_memory; /* true if memory operand */
569 int is_rw; /* for '+' modifier */
570 } ASMOperand;
571 #endif
572
573 struct sym_attr {
574 unsigned long got_offset;
575 unsigned long plt_offset;
576 #ifdef TCC_TARGET_ARM
577 unsigned char plt_thumb_stub:1;
578 #endif
579 };
580
581 struct TCCState {
582
583 int verbose; /* if true, display some information during compilation */
584 int nostdinc; /* if true, no standard headers are added */
585 int nostdlib; /* if true, no standard libraries are added */
586 int nocommon; /* if true, do not use common symbols for .bss data */
587 int static_link; /* if true, static linking is performed */
588 int rdynamic; /* if true, all symbols are exported */
589 int symbolic; /* if true, resolve symbols in the current module first */
590 int alacarte_link; /* if true, only link in referenced objects from archive */
591
592 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
593 char *soname; /* as specified on the command line (-soname) */
594 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
595
596 /* output type, see TCC_OUTPUT_XXX */
597 int output_type;
598 /* output format, see TCC_OUTPUT_FORMAT_xxx */
599 int output_format;
600
601 /* C language options */
602 int char_is_unsigned;
603 int leading_underscore;
604 int ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
605 int old_struct_init_code; /* use old algorithm to init array in struct when there is no '{' used.
606 Liuux 2.4.26 can't find initrd when compiled with a new algorithm */
607 int dollars_in_identifiers; /* allows '$' char in indentifiers */
608
609 /* warning switches */
610 int warn_write_strings;
611 int warn_unsupported;
612 int warn_error;
613 int warn_none;
614 int warn_implicit_function_declaration;
615
616 /* compile with debug symbol (and use them if error during execution) */
617 int do_debug;
618 int do_strip;
619 #ifdef CONFIG_TCC_BCHECK
620 /* compile with built-in memory and bounds checker */
621 int do_bounds_check;
622 #endif
623 #ifdef TCC_TARGET_ARM
624 enum float_abi float_abi; /* float ABI of the generated code*/
625 #endif
626
627 addr_t text_addr; /* address of text section */
628 int has_text_addr;
629
630 unsigned long section_align; /* section alignment */
631
632 char *init_symbol; /* symbols to call at load-time (not used currently) */
633 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
634
635 #ifdef TCC_TARGET_I386
636 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
637 #endif
638
639 /* array of all loaded dlls (including those referenced by loaded dlls) */
640 DLLReference **loaded_dlls;
641 int nb_loaded_dlls;
642
643 /* include paths */
644 char **include_paths;
645 int nb_include_paths;
646
647 char **sysinclude_paths;
648 int nb_sysinclude_paths;
649
650 /* library paths */
651 char **library_paths;
652 int nb_library_paths;
653
654 /* crt?.o object path */
655 char **crt_paths;
656 int nb_crt_paths;
657
658 /* error handling */
659 void *error_opaque;
660 void (*error_func)(void *opaque, const char *msg);
661 int error_set_jmp_enabled;
662 jmp_buf error_jmp_buf;
663 int nb_errors;
664
665 /* output file for preprocessing (-E) */
666 FILE *ppfp;
667 enum {
668 LINE_MACRO_OUTPUT_FORMAT_GCC,
669 LINE_MACRO_OUTPUT_FORMAT_NONE,
670 LINE_MACRO_OUTPUT_FORMAT_STD,
671 } Pflag; /* -P switch */
672 int dflag; /* -dX value */
673
674 /* for -MD/-MF: collected dependencies for this compilation */
675 char **target_deps;
676 int nb_target_deps;
677
678 /* compilation */
679 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
680 BufferedFile **include_stack_ptr;
681
682 int ifdef_stack[IFDEF_STACK_SIZE];
683 int *ifdef_stack_ptr;
684
685 /* included files enclosed with #ifndef MACRO */
686 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
687 CachedInclude **cached_includes;
688 int nb_cached_includes;
689
690 /* #pragma pack stack */
691 int pack_stack[PACK_STACK_SIZE];
692 int *pack_stack_ptr;
693 char **pragma_libs;
694 int nb_pragma_libs;
695
696 /* inline functions are stored as token lists and compiled last
697 only if referenced */
698 struct InlineFunc **inline_fns;
699 int nb_inline_fns;
700
701 /* sections */
702 Section **sections;
703 int nb_sections; /* number of sections, including first dummy section */
704
705 Section **priv_sections;
706 int nb_priv_sections; /* number of private sections */
707
708 /* got & plt handling */
709 Section *got;
710 Section *plt;
711 struct sym_attr *sym_attrs;
712 int nb_sym_attrs;
713 /* give the correspondance from symtab indexes to dynsym indexes */
714 int *symtab_to_dynsym;
715
716 /* temporary dynamic symbol sections (for dll loading) */
717 Section *dynsymtab_section;
718 /* exported dynamic symbol section */
719 Section *dynsym;
720 /* copy of the gobal symtab_section variable */
721 Section *symtab;
722 /* tiny assembler state */
723 Sym *asm_labels;
724
725 #ifdef TCC_TARGET_PE
726 /* PE info */
727 int pe_subsystem;
728 unsigned pe_file_align;
729 unsigned pe_stack_size;
730 # ifdef TCC_TARGET_X86_64
731 Section *uw_pdata;
732 int uw_sym;
733 unsigned uw_offs;
734 # endif
735 #endif
736
737 #ifdef TCC_IS_NATIVE
738 const char *runtime_main;
739 /* for tcc_relocate */
740 void *runtime_mem;
741 # ifdef HAVE_SELINUX
742 void *write_mem;
743 unsigned long mem_size;
744 # endif
745 #endif
746
747 /* used by main and tcc_parse_args only */
748 char **files; /* files seen on command line */
749 int nb_files; /* number thereof */
750 int nb_libraries; /* number of libs thereof */
751 char *outfile; /* output filename */
752 char *option_m; /* only -m32/-m64 handled */
753 int print_search_dirs; /* option */
754 int option_r; /* option -r */
755 int do_bench; /* option -bench */
756 int gen_deps; /* option -MD */
757 char *deps_outfile; /* option -MF */
758 };
759
760 /* The current value can be: */
761 #define VT_VALMASK 0x003f /* mask for value location, register or: */
762 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
763 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
764 #define VT_LOCAL 0x0032 /* offset on stack */
765 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
766 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
767 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
768 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
769 #define VT_LVAL 0x0100 /* var is an lvalue */
770 #define VT_SYM 0x0200 /* a symbol value is added */
771 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
772 char/short stored in integer registers) */
773 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
774 dereferencing value */
775 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
776 bounding function call point is in vc */
777 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
778 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
779 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
780 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
781
782 /* types */
783 #define VT_BTYPE 0x000f /* mask for basic type */
784 #define VT_INT 0 /* integer type */
785 #define VT_BYTE 1 /* signed byte type */
786 #define VT_SHORT 2 /* short type */
787 #define VT_VOID 3 /* void type */
788 #define VT_PTR 4 /* pointer */
789 #define VT_ENUM 5 /* enum definition */
790 #define VT_FUNC 6 /* function type */
791 #define VT_STRUCT 7 /* struct/union definition */
792 #define VT_FLOAT 8 /* IEEE float */
793 #define VT_DOUBLE 9 /* IEEE double */
794 #define VT_LDOUBLE 10 /* IEEE long double */
795 #define VT_BOOL 11 /* ISOC99 boolean type */
796 #define VT_LLONG 12 /* 64 bit integer */
797 #define VT_LONG 13 /* long integer (NEVER USED as type, only
798 during parsing) */
799 #define VT_QLONG 14 /* 128-bit integer. No longer used. */
800 #define VT_QFLOAT 15 /* 128-bit float. No longer used. */
801 #define VT_UNSIGNED 0x0010 /* unsigned type */
802 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
803 #define VT_BITFIELD 0x0040 /* bitfield modifier */
804 #define VT_CONSTANT 0x0800 /* const modifier */
805 #define VT_VOLATILE 0x1000 /* volatile modifier */
806 #define VT_DEFSIGN 0x2000 /* signed type */
807 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
808
809 /* storage */
810 #define VT_EXTERN 0x00000080 /* extern definition */
811 #define VT_STATIC 0x00000100 /* static variable */
812 #define VT_TYPEDEF 0x00000200 /* typedef definition */
813 #define VT_INLINE 0x00000400 /* inline definition */
814 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
815 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
816 #define VT_WEAK 0x00010000 /* weak symbol */
817 #define VT_TLS 0x00040000 /* thread-local storage */
818 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
819 bitfield values, because bitfields never
820 have linkage and hence never have
821 visibility. */
822 #define VT_VIS_SIZE 2 /* We have four visibilities. */
823 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
824
825 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
826
827
828 /* type mask (except storage) */
829 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
830 #define VT_TYPE (~(VT_STORAGE))
831
832 /* token values */
833
834 /* warning: the following compare tokens depend on i386 asm code */
835 #define TOK_ULT 0x92
836 #define TOK_UGE 0x93
837 #define TOK_EQ 0x94
838 #define TOK_NE 0x95
839 #define TOK_ULE 0x96
840 #define TOK_UGT 0x97
841 #define TOK_Nset 0x98
842 #define TOK_Nclear 0x99
843 #define TOK_LT 0x9c
844 #define TOK_GE 0x9d
845 #define TOK_LE 0x9e
846 #define TOK_GT 0x9f
847
848 #define TOK_LAND 0xa0
849 #define TOK_LOR 0xa1
850 #define TOK_DEC 0xa2
851 #define TOK_MID 0xa3 /* inc/dec, to void constant */
852 #define TOK_INC 0xa4
853 #define TOK_UDIV 0xb0 /* unsigned division */
854 #define TOK_UMOD 0xb1 /* unsigned modulo */
855 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
856
857 /* tokens that carry values (in additional token string space / tokc) --> */
858 #define TOK_CCHAR 0xb3 /* char constant in tokc */
859 #define TOK_LCHAR 0xb4
860 #define TOK_CINT 0xb5 /* number in tokc */
861 #define TOK_CUINT 0xb6 /* unsigned int constant */
862 #define TOK_CLLONG 0xb7 /* long long constant */
863 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
864 #define TOK_STR 0xb9 /* pointer to string in tokc */
865 #define TOK_LSTR 0xba
866 #define TOK_CFLOAT 0xbb /* float constant */
867 #define TOK_CDOUBLE 0xbc /* double constant */
868 #define TOK_CLDOUBLE 0xbd /* long double constant */
869 #define TOK_PPNUM 0xbe /* preprocessor number */
870 #define TOK_PPSTR 0xbf /* preprocessor string */
871 #define TOK_LINENUM 0xc0 /* line number info */
872 /* <-- */
873
874 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
875 #define TOK_ADDC1 0xc3 /* add with carry generation */
876 #define TOK_ADDC2 0xc4 /* add with carry use */
877 #define TOK_SUBC1 0xc5 /* add with carry generation */
878 #define TOK_SUBC2 0xc6 /* add with carry use */
879 #define TOK_ARROW 0xc7
880 #define TOK_DOTS 0xc8 /* three dots */
881 #define TOK_SHR 0xc9 /* unsigned shift right */
882 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
883 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
884 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
885
886 #define TOK_SHL 0x01 /* shift left */
887 #define TOK_SAR 0x02 /* signed shift right */
888
889 /* assignement operators : normal operator or 0x80 */
890 #define TOK_A_MOD 0xa5
891 #define TOK_A_AND 0xa6
892 #define TOK_A_MUL 0xaa
893 #define TOK_A_ADD 0xab
894 #define TOK_A_SUB 0xad
895 #define TOK_A_DIV 0xaf
896 #define TOK_A_XOR 0xde
897 #define TOK_A_OR 0xfc
898 #define TOK_A_SHL 0x81
899 #define TOK_A_SAR 0x82
900
901 #ifndef offsetof
902 #define offsetof(type, field) ((size_t) &((type *)0)->field)
903 #endif
904
905 #ifndef countof
906 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
907 #endif
908
909 #define TOK_EOF (-1) /* end of file */
910 #define TOK_LINEFEED 10 /* line feed */
911
912 /* all identificators and strings have token above that */
913 #define TOK_IDENT 256
914
915 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
916 #define TOK_ASM_int TOK_INT
917 #define TOK_ASM_weak TOK_WEAK1
918
919 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
920 /* only used for i386 asm opcodes definitions */
921 #define DEF_BWL(x) \
922 DEF(TOK_ASM_ ## x ## b, #x "b") \
923 DEF(TOK_ASM_ ## x ## w, #x "w") \
924 DEF(TOK_ASM_ ## x ## l, #x "l") \
925 DEF(TOK_ASM_ ## x, #x)
926 #define DEF_WL(x) \
927 DEF(TOK_ASM_ ## x ## w, #x "w") \
928 DEF(TOK_ASM_ ## x ## l, #x "l") \
929 DEF(TOK_ASM_ ## x, #x)
930 #ifdef TCC_TARGET_X86_64
931 # define DEF_BWLQ(x) \
932 DEF(TOK_ASM_ ## x ## b, #x "b") \
933 DEF(TOK_ASM_ ## x ## w, #x "w") \
934 DEF(TOK_ASM_ ## x ## l, #x "l") \
935 DEF(TOK_ASM_ ## x ## q, #x "q") \
936 DEF(TOK_ASM_ ## x, #x)
937 # define DEF_WLQ(x) \
938 DEF(TOK_ASM_ ## x ## w, #x "w") \
939 DEF(TOK_ASM_ ## x ## l, #x "l") \
940 DEF(TOK_ASM_ ## x ## q, #x "q") \
941 DEF(TOK_ASM_ ## x, #x)
942 # define DEF_BWLX DEF_BWLQ
943 # define DEF_WLX DEF_WLQ
944 /* number of sizes + 1 */
945 # define NBWLX 5
946 #else
947 # define DEF_BWLX DEF_BWL
948 # define DEF_WLX DEF_WL
949 /* number of sizes + 1 */
950 # define NBWLX 4
951 #endif
952
953 #define DEF_FP1(x) \
954 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
955 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
956 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
957 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
958
959 #define DEF_FP(x) \
960 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
961 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
962 DEF_FP1(x)
963
964 #define DEF_ASMTEST(x,suffix) \
965 DEF_ASM(x ## o ## suffix) \
966 DEF_ASM(x ## no ## suffix) \
967 DEF_ASM(x ## b ## suffix) \
968 DEF_ASM(x ## c ## suffix) \
969 DEF_ASM(x ## nae ## suffix) \
970 DEF_ASM(x ## nb ## suffix) \
971 DEF_ASM(x ## nc ## suffix) \
972 DEF_ASM(x ## ae ## suffix) \
973 DEF_ASM(x ## e ## suffix) \
974 DEF_ASM(x ## z ## suffix) \
975 DEF_ASM(x ## ne ## suffix) \
976 DEF_ASM(x ## nz ## suffix) \
977 DEF_ASM(x ## be ## suffix) \
978 DEF_ASM(x ## na ## suffix) \
979 DEF_ASM(x ## nbe ## suffix) \
980 DEF_ASM(x ## a ## suffix) \
981 DEF_ASM(x ## s ## suffix) \
982 DEF_ASM(x ## ns ## suffix) \
983 DEF_ASM(x ## p ## suffix) \
984 DEF_ASM(x ## pe ## suffix) \
985 DEF_ASM(x ## np ## suffix) \
986 DEF_ASM(x ## po ## suffix) \
987 DEF_ASM(x ## l ## suffix) \
988 DEF_ASM(x ## nge ## suffix) \
989 DEF_ASM(x ## nl ## suffix) \
990 DEF_ASM(x ## ge ## suffix) \
991 DEF_ASM(x ## le ## suffix) \
992 DEF_ASM(x ## ng ## suffix) \
993 DEF_ASM(x ## nle ## suffix) \
994 DEF_ASM(x ## g ## suffix)
995
996 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
997
998 enum tcc_token {
999 TOK_LAST = TOK_IDENT - 1,
1000 #define DEF(id, str) id,
1001 #include "tcctok.h"
1002 #undef DEF
1003 };
1004
1005 #define TOK_UIDENT TOK_DEFINE
1006
1007 /* space exlcuding newline */
1008 static inline int is_space(int ch)
1009 {
1010 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1011 }
1012
1013 static inline int isid(int c)
1014 {
1015 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1016 }
1017
1018 static inline int isnum(int c)
1019 {
1020 return c >= '0' && c <= '9';
1021 }
1022
1023 static inline int isoct(int c)
1024 {
1025 return c >= '0' && c <= '7';
1026 }
1027
1028 static inline int toup(int c)
1029 {
1030 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1031 }
1032
1033 #ifndef PUB_FUNC
1034 # define PUB_FUNC
1035 #endif
1036
1037 #ifdef ONE_SOURCE
1038 #define ST_INLN static inline
1039 #define ST_FUNC static
1040 #define ST_DATA static
1041 #else
1042 #define ST_INLN
1043 #define ST_FUNC
1044 #define ST_DATA extern
1045 #endif
1046
1047 /* ------------ libtcc.c ------------ */
1048
1049 /* use GNU C extensions */
1050 ST_DATA int gnu_ext;
1051 /* use Tiny C extensions */
1052 ST_DATA int tcc_ext;
1053 /* XXX: get rid of this ASAP */
1054 ST_DATA struct TCCState *tcc_state;
1055
1056 #define AFF_PRINT_ERROR 0x0001 /* print error if file not found */
1057 #define AFF_REFERENCED_DLL 0x0002 /* load a referenced dll from another dll */
1058 #define AFF_PREPROCESS 0x0004 /* preprocess file */
1059
1060 /* public functions currently used by the tcc main function */
1061 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1062 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1063 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1064 PUB_FUNC char *tcc_basename(const char *name);
1065 PUB_FUNC char *tcc_fileextension (const char *name);
1066
1067 #ifndef MEM_DEBUG
1068 PUB_FUNC void tcc_free(void *ptr);
1069 PUB_FUNC void *tcc_malloc(unsigned long size);
1070 PUB_FUNC void *tcc_mallocz(unsigned long size);
1071 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1072 PUB_FUNC char *tcc_strdup(const char *str);
1073 #else
1074 #define tcc_free(ptr) tcc_free_debug(ptr)
1075 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1076 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1077 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1078 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1079 PUB_FUNC void tcc_free_debug(void *ptr);
1080 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1081 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1082 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1083 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1084 #endif
1085
1086 #define free(p) use_tcc_free(p)
1087 #define malloc(s) use_tcc_malloc(s)
1088 #define realloc(p, s) use_tcc_realloc(p, s)
1089 #undef strdup
1090 #define strdup(s) use_tcc_strdup(s)
1091 PUB_FUNC void tcc_memstats(int bench);
1092 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1093 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1094 PUB_FUNC void tcc_warning(const char *fmt, ...);
1095
1096 /* other utilities */
1097 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1098 ST_FUNC void dynarray_reset(void *pp, int *n);
1099 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1100 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1101 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1102 ST_FUNC void cstr_new(CString *cstr);
1103 ST_FUNC void cstr_free(CString *cstr);
1104 ST_FUNC void cstr_reset(CString *cstr);
1105
1106 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1107 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1108 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1109 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1110 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1111
1112 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1113 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1114 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1115 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1116
1117 ST_INLN void sym_free(Sym *sym);
1118 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1119 ST_FUNC Sym *sym_find2(Sym *s, int v);
1120 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1121 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1122 ST_INLN Sym *struct_find(int v);
1123 ST_INLN Sym *sym_find(int v);
1124 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1125
1126 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1127 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1128 ST_FUNC void tcc_close(void);
1129
1130 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype);
1131 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1132
1133 #ifndef TCC_TARGET_PE
1134 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1135 #endif
1136
1137 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1138 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1139
1140 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1141 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1142 PUB_FUNC void tcc_set_environment(TCCState *s);
1143
1144 /* ------------ tccpp.c ------------ */
1145
1146 ST_DATA struct BufferedFile *file;
1147 ST_DATA int ch, tok;
1148 ST_DATA CValue tokc;
1149 ST_DATA const int *macro_ptr;
1150 ST_DATA int parse_flags;
1151 ST_DATA int tok_flags;
1152 ST_DATA CString tokcstr; /* current parsed string, if any */
1153
1154 /* display benchmark infos */
1155 ST_DATA int total_lines;
1156 ST_DATA int total_bytes;
1157 ST_DATA int tok_ident;
1158 ST_DATA TokenSym **table_ident;
1159
1160 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1161 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1162 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1163 #define TOK_FLAG_EOF 0x0008 /* end of file */
1164
1165 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1166 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1167 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1168 token. line feed is also
1169 returned at eof */
1170 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1171 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1172 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1173 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1174
1175 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1176 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1177 ST_FUNC void begin_macro(TokenString *str, int alloc);
1178 ST_FUNC void end_macro(void);
1179 ST_FUNC void save_parse_state(ParseState *s);
1180 ST_FUNC void restore_parse_state(ParseState *s);
1181 ST_INLN void tok_str_new(TokenString *s);
1182 ST_FUNC void tok_str_free(int *str);
1183 ST_FUNC void tok_str_add(TokenString *s, int t);
1184 ST_FUNC void tok_str_add_tok(TokenString *s);
1185 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1186 ST_FUNC void define_undef(Sym *s);
1187 ST_INLN Sym *define_find(int v);
1188 ST_FUNC void free_defines(Sym *b);
1189 ST_FUNC void print_defines(void);
1190 ST_FUNC Sym *label_find(int v);
1191 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1192 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1193 ST_FUNC void parse_define(void);
1194 ST_FUNC void preprocess(int is_bof);
1195 ST_FUNC void next_nomacro(void);
1196 ST_FUNC void next(void);
1197 ST_INLN void unget_tok(int last_tok);
1198 ST_FUNC void preprocess_init(TCCState *s1);
1199 ST_FUNC void preprocess_new(void);
1200 ST_FUNC void preprocess_delete(void);
1201 ST_FUNC int tcc_preprocess(TCCState *s1);
1202 ST_FUNC void skip(int c);
1203 ST_FUNC NORETURN void expect(const char *msg);
1204
1205 /* ------------ tccgen.c ------------ */
1206
1207 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1208 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1209 #ifdef CONFIG_TCC_ASM
1210 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1211 #endif
1212 #ifdef CONFIG_TCC_BCHECK
1213 /* bound check related sections */
1214 ST_DATA Section *bounds_section; /* contains global data bound description */
1215 ST_DATA Section *lbounds_section; /* contains local data bound description */
1216 #endif
1217 /* symbol sections */
1218 ST_DATA Section *symtab_section, *strtab_section;
1219 /* debug sections */
1220 ST_DATA Section *stab_section, *stabstr_section;
1221
1222 #define SYM_POOL_NB (8192 / sizeof(Sym))
1223 ST_DATA Sym *sym_free_first;
1224 ST_DATA void **sym_pools;
1225 ST_DATA int nb_sym_pools;
1226
1227 ST_DATA Sym *global_stack;
1228 ST_DATA Sym *local_stack;
1229 ST_DATA Sym *local_label_stack;
1230 ST_DATA Sym *global_label_stack;
1231 ST_DATA Sym *define_stack;
1232 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1233 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop;
1234 #define vstack (__vstack + 1)
1235 ST_DATA int rsym, anon_sym, ind, loc;
1236
1237 ST_DATA int const_wanted; /* true if constant wanted */
1238 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1239 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1240 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1241 ST_DATA int func_var; /* true if current function is variadic */
1242 ST_DATA int func_vc;
1243 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1244 ST_DATA const char *funcname;
1245
1246 ST_FUNC void check_vstack(void);
1247 ST_INLN int is_float(int t);
1248 ST_FUNC int ieee_finite(double d);
1249 ST_FUNC void test_lvalue(void);
1250 ST_FUNC void swap(int *p, int *q);
1251 ST_FUNC void vpushi(int v);
1252 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1253 ST_FUNC void vset(CType *type, int r, int v);
1254 ST_FUNC void vswap(void);
1255 ST_FUNC void vpush_global_sym(CType *type, int v);
1256 ST_FUNC void vrote(SValue *e, int n);
1257 ST_FUNC void vrott(int n);
1258 ST_FUNC void vrotb(int n);
1259 #ifdef TCC_TARGET_ARM
1260 ST_FUNC int get_reg_ex(int rc, int rc2);
1261 ST_FUNC void lexpand_nr(void);
1262 #endif
1263 ST_FUNC void vpushv(SValue *v);
1264 ST_FUNC void save_reg(int r);
1265 ST_FUNC int get_reg(int rc);
1266 ST_FUNC void save_regs(int n);
1267 ST_FUNC void gaddrof(void);
1268 ST_FUNC int gv(int rc);
1269 ST_FUNC void gv2(int rc1, int rc2);
1270 ST_FUNC void vdup(void);
1271 ST_FUNC void vpop(void);
1272 ST_FUNC void gen_op(int op);
1273 ST_FUNC int type_size(CType *type, int *a);
1274 ST_FUNC void mk_pointer(CType *type);
1275 ST_FUNC void vstore(void);
1276 ST_FUNC void inc(int post, int c);
1277 ST_FUNC void parse_asm_str(CString *astr);
1278 ST_FUNC int lvalue_type(int t);
1279 ST_FUNC void indir(void);
1280 ST_FUNC void unary(void);
1281 ST_FUNC void expr_prod(void);
1282 ST_FUNC void expr_sum(void);
1283 ST_FUNC void gexpr(void);
1284 ST_FUNC int expr_const(void);
1285 ST_FUNC void gen_inline_functions(void);
1286 ST_FUNC void decl(int l);
1287 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1288 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1289 #endif
1290 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1291 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1292 #endif
1293
1294 /* ------------ tccelf.c ------------ */
1295
1296 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1297 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1298 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1299
1300 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1301
1302 typedef struct {
1303 unsigned int n_strx; /* index into string table of name */
1304 unsigned char n_type; /* type of symbol */
1305 unsigned char n_other; /* misc info (usually empty) */
1306 unsigned short n_desc; /* description field */
1307 unsigned int n_value; /* value of symbol */
1308 } Stab_Sym;
1309
1310 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);
1311
1312 ST_FUNC int put_elf_str(Section *s, const char *sym);
1313 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1314 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1315 ST_FUNC int find_elf_sym(Section *s, const char *name);
1316 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1317 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1318
1319 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1320 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1321 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1322 ST_FUNC void put_stabd(int type, int other, int desc);
1323
1324 ST_FUNC void relocate_common_syms(void);
1325 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1326 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1327 ST_FUNC void relocate_plt(TCCState *s1);
1328
1329 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1330 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1331 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1332 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1333
1334 ST_FUNC void build_got_entries(TCCState *s1);
1335 ST_FUNC void tcc_add_runtime(TCCState *s1);
1336
1337 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1338 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1339 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1340 #endif
1341
1342 #ifndef TCC_TARGET_PE
1343 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1344 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1345 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1346 ST_FUNC void minp(void);
1347 ST_INLN void inp(void);
1348 ST_FUNC int handle_eob(void);
1349 #endif
1350
1351 /* ------------ xxx-gen.c ------------ */
1352
1353 ST_DATA const int reg_classes[NB_REGS];
1354
1355 ST_FUNC void gsym_addr(int t, int a);
1356 ST_FUNC void gsym(int t);
1357 ST_FUNC void load(int r, SValue *sv);
1358 ST_FUNC void store(int r, SValue *v);
1359 ST_FUNC int regargs_nregs(RegArgs *args);
1360 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize, RegArgs *args);
1361 ST_FUNC void gfunc_call(int nb_args);
1362 ST_FUNC void gfunc_prolog(CType *func_type);
1363 ST_FUNC void gfunc_epilog(void);
1364 ST_FUNC int gjmp(int t);
1365 ST_FUNC void gjmp_addr(int a);
1366 ST_FUNC int gtst(int inv, int t);
1367 ST_FUNC void gen_opi(int op);
1368 ST_FUNC void gen_opf(int op);
1369 ST_FUNC void gen_cvt_ftoi(int t);
1370 ST_FUNC void gen_cvt_ftof(int t);
1371 ST_FUNC void ggoto(void);
1372 #ifndef TCC_TARGET_C67
1373 ST_FUNC void o(unsigned int c);
1374 #endif
1375 #ifndef TCC_TARGET_ARM
1376 ST_FUNC void gen_cvt_itof(int t);
1377 #endif
1378 ST_FUNC void gen_vla_sp_save(int addr);
1379 ST_FUNC void gen_vla_sp_restore(int addr);
1380 ST_FUNC void gen_vla_alloc(CType *type, int align);
1381
1382 /* ------------ i386-gen.c ------------ */
1383 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1384 ST_FUNC void g(int c);
1385 ST_FUNC int oad(int c, int s);
1386 ST_FUNC void gen_le16(int c);
1387 ST_FUNC void gen_le32(int c);
1388 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1389 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1390 #endif
1391
1392 #ifdef CONFIG_TCC_BCHECK
1393 ST_FUNC void gen_bounded_ptr_add(void);
1394 ST_FUNC void gen_bounded_ptr_deref(void);
1395 #endif
1396
1397 /* ------------ x86_64-gen.c ------------ */
1398 #ifdef TCC_TARGET_X86_64
1399 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1400 ST_FUNC void gen_opl(int op);
1401 #endif
1402
1403 /* ------------ arm-gen.c ------------ */
1404 #ifdef TCC_TARGET_ARM
1405 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1406 ST_FUNC char *default_elfinterp(struct TCCState *s);
1407 #endif
1408 ST_FUNC void arm_init(struct TCCState *s);
1409 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1410 ST_FUNC void gen_cvt_itof1(int t);
1411 #endif
1412
1413 /* ------------ arm64-gen.c ------------ */
1414 #ifdef TCC_TARGET_ARM64
1415 ST_FUNC void gen_cvt_sxtw(void);
1416 ST_FUNC void gen_opl(int op);
1417 ST_FUNC void greturn(void);
1418 ST_FUNC void gen_va_start(void);
1419 ST_FUNC void gen_va_arg(CType *t);
1420 ST_FUNC void gen_clear_cache(void);
1421 #endif
1422
1423 /* ------------ c67-gen.c ------------ */
1424 #ifdef TCC_TARGET_C67
1425 #endif
1426
1427 /* ------------ tcccoff.c ------------ */
1428
1429 #ifdef TCC_TARGET_COFF
1430 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1431 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1432 #endif
1433
1434 /* ------------ tccasm.c ------------ */
1435 ST_FUNC void asm_instr(void);
1436 ST_FUNC void asm_global_instr(void);
1437 #ifdef CONFIG_TCC_ASM
1438 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1439 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1440 ST_FUNC int asm_int_expr(TCCState *s1);
1441 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1442 /* ------------ i386-asm.c ------------ */
1443 ST_FUNC void gen_expr32(ExprValue *pe);
1444 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1445 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1446 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1447 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1448 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1449 #endif
1450
1451 /* ------------ tccpe.c -------------- */
1452 #ifdef TCC_TARGET_PE
1453 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1454 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1455 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1456 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1457 #ifdef TCC_TARGET_X86_64
1458 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1459 #endif
1460 /* symbol properties stored in Elf32_Sym->st_other */
1461 # define ST_PE_EXPORT 0x10
1462 # define ST_PE_IMPORT 0x20
1463 # define ST_PE_STDCALL 0x40
1464 #endif
1465
1466 /* ------------ tccrun.c ----------------- */
1467 #ifdef TCC_IS_NATIVE
1468 #ifdef CONFIG_TCC_STATIC
1469 #define RTLD_LAZY 0x001
1470 #define RTLD_NOW 0x002
1471 #define RTLD_GLOBAL 0x100
1472 #define RTLD_DEFAULT NULL
1473 /* dummy function for profiling */
1474 ST_FUNC void *dlopen(const char *filename, int flag);
1475 ST_FUNC void dlclose(void *p);
1476 ST_FUNC const char *dlerror(void);
1477 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1478 #elif !defined _WIN32
1479 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1480 #endif
1481
1482 #ifdef CONFIG_TCC_BACKTRACE
1483 ST_DATA int rt_num_callers;
1484 ST_DATA const char **rt_bound_error_msg;
1485 ST_DATA void *rt_prog_main;
1486 ST_FUNC void tcc_set_num_callers(int n);
1487 #endif
1488 #endif
1489
1490 /********************************************************/
1491 #undef ST_DATA
1492 #ifdef ONE_SOURCE
1493 #define ST_DATA static
1494 #else
1495 #define ST_DATA
1496 #endif
1497 /********************************************************/
1498 #endif /* _TCC_H */
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