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tccgen.c: Recognise constant expressions with conditional operator.
[tinycc.git] / tcc.h
blob394b6abdb918c0704053f59473fd4c5386734dae
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 #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 <signal.h>
34 #include <fcntl.h>
35 #include <setjmp.h>
36 #include <time.h>
37 #include <sys/stat.h> /* stat() */
38
39 #ifdef CONFIG_TCCASSERT
40 #include <assert.h>
41 #define TCC_ASSERT(ex) assert(ex)
42 #else
43 #define TCC_ASSERT(ex)
44 #endif
45
46 #ifndef _WIN32
47 # include <unistd.h>
48 # include <sys/time.h>
49 # include <sys/ucontext.h>
50 # include <sys/mman.h>
51 # ifndef CONFIG_TCC_STATIC
52 # include <dlfcn.h>
53 # endif
54 /* XXX: need to define this to use them in non ISOC99 context */
55 extern float strtof (const char *__nptr, char **__endptr);
56 extern long double strtold (const char *__nptr, char **__endptr);
57 #else /* on _WIN32: */
58 # include <windows.h>
59 # include <sys/timeb.h>
60 # include <io.h> /* open, close etc. */
61 # include <direct.h> /* getcwd */
62 # ifdef __GNUC__
63 # include <stdint.h>
64 # endif
65 # define inline __inline
66 # define inp next_inp
67 # define snprintf _snprintf
68 # define vsnprintf _vsnprintf
69 # ifndef __GNUC__
70 # define strtold (long double)strtod
71 # define strtof (float)strtod
72 # define strtoll _strtoi64
73 # define strtoull _strtoui64
74 # endif
75 # ifdef LIBTCC_AS_DLL
76 # define LIBTCCAPI __declspec(dllexport)
77 # define PUB_FUNC LIBTCCAPI
78 # endif
79 #endif
80
81 #ifndef O_BINARY
82 # define O_BINARY 0
83 #endif
84
85 #ifdef __GNUC__
86 # define NORETURN __attribute__ ((noreturn))
87 #elif defined _MSC_VER
88 # define NORETURN __declspec(noreturn)
89 #else
90 # define NORETURN
91 #endif
92
93 #ifdef _WIN32
94 # define IS_DIRSEP(c) (c == '/' || c == '\\')
95 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
96 # define PATHCMP stricmp
97 #else
98 # define IS_DIRSEP(c) (c == '/')
99 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
100 # define PATHCMP strcmp
101 #endif
102
103 #ifdef TCC_TARGET_PE
104 #define PATHSEP ';'
105 #else
106 #define PATHSEP ':'
107 #endif
108
109 #include "elf.h"
110 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
111 # define ELFCLASSW ELFCLASS64
112 # define ElfW(type) Elf##64##_##type
113 # define ELFW(type) ELF##64##_##type
114 # define ElfW_Rel ElfW(Rela)
115 # define SHT_RELX SHT_RELA
116 # define REL_SECTION_FMT ".rela%s"
117 /* XXX: DLL with PLT would only work with x86-64 for now */
118 # define TCC_OUTPUT_DLL_WITH_PLT
119 #else
120 # define ELFCLASSW ELFCLASS32
121 # define ElfW(type) Elf##32##_##type
122 # define ELFW(type) ELF##32##_##type
123 # define ElfW_Rel ElfW(Rel)
124 # define SHT_RELX SHT_REL
125 # define REL_SECTION_FMT ".rel%s"
126 #endif
127
128 /* target address type */
129 #define addr_t ElfW(Addr)
130
131 #include "stab.h"
132 #include "libtcc.h"
133
134 static inline uint16_t read16le(unsigned char *p)
135 {
136 return p[0] | (uint16_t)p[1] << 8;
137 }
138
139 static inline void write16le(unsigned char *p, uint16_t x)
140 {
141 p[0] = x & 255;
142 p[1] = x >> 8 & 255;
143 }
144
145 static inline uint32_t read32le(unsigned char *p)
146 {
147 return (p[0] | (uint32_t)p[1] << 8 |
148 (uint32_t)p[2] << 16 | (uint32_t)p[3] << 24);
149 }
150
151 static inline void write32le(unsigned char *p, uint32_t x)
152 {
153 p[0] = x & 255;
154 p[1] = x >> 8 & 255;
155 p[2] = x >> 16 & 255;
156 p[3] = x >> 24 & 255;
157 }
158
159 static inline uint64_t read64le(unsigned char *p)
160 {
161 return (p[0] | (uint64_t)p[1] << 8 |
162 (uint64_t)p[2] << 16 | (uint64_t)p[3] << 24 |
163 (uint64_t)p[4] << 32 | (uint64_t)p[5] << 40 |
164 (uint64_t)p[6] << 48 | (uint64_t)p[7] << 56);
165 }
166
167 static inline void write64le(unsigned char *p, uint64_t x)
168 {
169 p[0] = x & 255;
170 p[1] = x >> 8 & 255;
171 p[2] = x >> 16 & 255;
172 p[3] = x >> 24 & 255;
173 p[4] = x >> 32 & 255;
174 p[5] = x >> 40 & 255;
175 p[6] = x >> 48 & 255;
176 p[7] = x >> 56 & 255;
177 }
178
179 /* parser debug */
180 /* #define PARSE_DEBUG */
181 /* preprocessor debug */
182 /* #define PP_DEBUG */
183 /* include file debug */
184 /* #define INC_DEBUG */
185 /* memory leak debug */
186 /* #define MEM_DEBUG */
187 /* assembler debug */
188 /* #define ASM_DEBUG */
189
190 /* target selection */
191 /* #define TCC_TARGET_I386 *//* i386 code generator */
192 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
193 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
194 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
195 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
196
197 /* default target is I386 */
198 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
199 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
200 !defined(TCC_TARGET_X86_64)
201 #define TCC_TARGET_I386
202 #endif
203
204 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
205 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
206 !defined(CONFIG_USE_LIBGCC)
207 #define CONFIG_TCC_BCHECK /* enable bound checking code */
208 #endif
209
210 /* define it to include assembler support */
211 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
212 !defined(TCC_TARGET_C67)
213 #define CONFIG_TCC_ASM
214 #endif
215
216 /* object format selection */
217 #if defined(TCC_TARGET_C67)
218 #define TCC_TARGET_COFF
219 #endif
220
221 /* only native compiler supports -run */
222 #if defined _WIN32 == defined TCC_TARGET_PE
223 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
224 # define TCC_IS_NATIVE
225 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
226 # define TCC_IS_NATIVE
227 # elif defined __arm__ && defined TCC_TARGET_ARM
228 # define TCC_IS_NATIVE
229 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
230 # define TCC_IS_NATIVE
231 # endif
232 #endif
233
234 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
235 # define CONFIG_TCC_BACKTRACE
236 #endif
237
238 /* ------------ path configuration ------------ */
239
240 #ifndef CONFIG_SYSROOT
241 # define CONFIG_SYSROOT ""
242 #endif
243 #ifndef CONFIG_TCCDIR
244 # define CONFIG_TCCDIR "."
245 #endif
246 #ifndef CONFIG_LDDIR
247 # ifdef TCC_TARGET_X86_64
248 # define CONFIG_LDDIR "lib64"
249 # else
250 # define CONFIG_LDDIR "lib"
251 # endif
252 #endif
253
254 #ifdef CONFIG_MULTIARCHDIR
255 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
256 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
257 #else
258 # define USE_MUADIR(s) s
259 # define ALSO_MUADIR(s) s
260 #endif
261
262 /* path to find crt1.o, crti.o and crtn.o */
263 #ifndef CONFIG_TCC_CRTPREFIX
264 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
265 #endif
266
267 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
268
269 /* system include paths */
270 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
271 # ifdef TCC_TARGET_PE
272 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
273 # else
274 # define CONFIG_TCC_SYSINCLUDEPATHS \
275 ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
276 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") \
277 ":" "{B}/include"
278 # endif
279 #endif
280
281 /* library search paths */
282 #ifndef CONFIG_TCC_LIBPATHS
283 # ifdef TCC_TARGET_PE
284 # define CONFIG_TCC_LIBPATHS "{B}/lib"
285 # else
286 # define CONFIG_TCC_LIBPATHS \
287 ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
288 ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
289 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
290 # endif
291 #endif
292
293 /* name of ELF interpreter */
294 #ifndef CONFIG_TCC_ELFINTERP
295 # if defined __FreeBSD__
296 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
297 # elif defined __FreeBSD_kernel__
298 # if defined(TCC_TARGET_X86_64)
299 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
300 # else
301 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
302 # endif
303 # elif defined __DragonFly__
304 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
305 # elif defined __NetBSD__
306 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
307 # elif defined __GNU__
308 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
309 # elif defined(TCC_TARGET_PE)
310 # define CONFIG_TCC_ELFINTERP "-"
311 # elif defined(TCC_UCLIBC)
312 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
313 # elif defined TCC_TARGET_ARM64
314 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
315 # elif defined(TCC_TARGET_X86_64)
316 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
317 # elif !defined(TCC_ARM_EABI)
318 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
319 # endif
320 #endif
321
322 /* var elf_interp dans *-gen.c */
323 #ifdef CONFIG_TCC_ELFINTERP
324 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
325 #else
326 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
327 #endif
328
329 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
330 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
331
332 /* -------------------------------------------- */
333 /* include the target specific definitions */
334
335 #define TARGET_DEFS_ONLY
336 #ifdef TCC_TARGET_I386
337 # include "i386-gen.c"
338 #endif
339 #ifdef TCC_TARGET_X86_64
340 # include "x86_64-gen.c"
341 #endif
342 #ifdef TCC_TARGET_ARM
343 # include "arm-gen.c"
344 #endif
345 #ifdef TCC_TARGET_ARM64
346 # include "arm64-gen.c"
347 #endif
348 #ifdef TCC_TARGET_C67
349 # include "coff.h"
350 # include "c67-gen.c"
351 #endif
352 #undef TARGET_DEFS_ONLY
353
354 /* -------------------------------------------- */
355
356 #define INCLUDE_STACK_SIZE 32
357 #define IFDEF_STACK_SIZE 64
358 #define VSTACK_SIZE 256
359 #define STRING_MAX_SIZE 1024
360 #define PACK_STACK_SIZE 8
361
362 #define TOK_HASH_SIZE 8192 /* must be a power of two */
363 #define TOK_ALLOC_INCR 512 /* must be a power of two */
364 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
365
366 /* token symbol management */
367 typedef struct TokenSym {
368 struct TokenSym *hash_next;
369 struct Sym *sym_define; /* direct pointer to define */
370 struct Sym *sym_label; /* direct pointer to label */
371 struct Sym *sym_struct; /* direct pointer to structure */
372 struct Sym *sym_identifier; /* direct pointer to identifier */
373 int tok; /* token number */
374 int len;
375 char str[1];
376 } TokenSym;
377
378 #ifdef TCC_TARGET_PE
379 typedef unsigned short nwchar_t;
380 #else
381 typedef int nwchar_t;
382 #endif
383
384 typedef struct CString {
385 int size; /* size in bytes */
386 void *data; /* either 'char *' or 'nwchar_t *' */
387 int size_allocated;
388 void *data_allocated; /* if non NULL, data has been malloced */
389 } CString;
390
391 /* type definition */
392 typedef struct CType {
393 int t;
394 struct Sym *ref;
395 } CType;
396
397 /* constant value */
398 typedef union CValue {
399 long double ld;
400 double d;
401 float f;
402 uint64_t i;
403 struct CString *cstr;
404 int tab[LDOUBLE_SIZE/4];
405 } CValue;
406
407 /* value on stack */
408 typedef struct SValue {
409 CType type; /* type */
410 unsigned short r; /* register + flags */
411 unsigned short r2; /* second register, used for 'long long'
412 type. If not used, set to VT_CONST */
413 CValue c; /* constant, if VT_CONST */
414 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */
415 } SValue;
416
417 struct Attribute {
418 unsigned
419 func_call : 3, /* calling convention (0..5), see below */
420 aligned : 5, /* alignement (0..16) */
421 packed : 1,
422 func_export : 1,
423 func_import : 1,
424 func_args : 5,
425 func_proto : 1,
426 mode : 4,
427 weak : 1,
428 visibility : 2,
429 fill : 8; // 8 bits left to fit well in union below
430 };
431
432 /* GNUC attribute definition */
433 typedef struct AttributeDef {
434 struct Attribute a;
435 struct Section *section;
436 int alias_target; /* token */
437 } AttributeDef;
438
439 /* symbol management */
440 typedef struct Sym {
441 int v; /* symbol token */
442 char *asm_label; /* associated asm label */
443 union {
444 long r; /* associated register */
445 struct Attribute a;
446 };
447 union {
448 long c; /* associated number */
449 int *d; /* define token stream */
450 };
451 CType type; /* associated type */
452 union {
453 struct Sym *next; /* next related symbol */
454 long jnext; /* next jump label */
455 };
456 struct Sym *prev; /* prev symbol in stack */
457 struct Sym *prev_tok; /* previous symbol for this token */
458 } Sym;
459
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
465
466 /* special flag, too */
467 #define SECTION_ABS ((void *)1)
468
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 *next;
488 char name[1]; /* section name */
489 } Section;
490
491 typedef struct DLLReference {
492 int level;
493 void *handle;
494 char name[1];
495 } DLLReference;
496
497 /* -------------------------------------------------- */
498
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 */
502
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 ... */
507
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 */
515
516 /* field 'Sym.t' for macros */
517 #define MACRO_OBJ 0 /* object like macro */
518 #define MACRO_FUNC 1 /* function like macro */
519
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 */
524
525 /* type_decl() types */
526 #define TYPE_ABSTRACT 1 /* type without variable */
527 #define TYPE_DIRECT 2 /* type with variable */
528
529 #define IO_BUF_SIZE 8192
530
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 inc_path_index;
539 int ifndef_macro; /* #ifndef macro / #endif search */
540 int ifndef_macro_saved; /* saved ifndef_macro */
541 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
542 char filename[1024]; /* filename */
543 unsigned char unget[4];
544 unsigned char buffer[1]; /* extra size for CH_EOB char */
545 } BufferedFile;
546
547 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
548 #define CH_EOF (-1) /* end of file */
549
550 /* parsing state (used to save parser state to reparse part of the
551 source several times) */
552 typedef struct ParseState {
553 const int *macro_ptr;
554 int line_num;
555 int tok;
556 CValue tokc;
557 } ParseState;
558
559 /* used to record tokens */
560 typedef struct TokenString {
561 int *str;
562 int len;
563 int allocated_len;
564 int last_line_num;
565 /* used to chain token-strings with begin/end_macro() */
566 struct TokenString *prev;
567 const int *prev_ptr;
568 char alloc;
569 } TokenString;
570
571 /* inline functions */
572 typedef struct InlineFunc {
573 TokenString func_str;
574 Sym *sym;
575 char filename[1];
576 } InlineFunc;
577
578 /* include file cache, used to find files faster and also to eliminate
579 inclusion if the include file is protected by #ifndef ... #endif */
580 typedef struct CachedInclude {
581 int ifndef_macro;
582 int hash_next; /* -1 if none */
583 char filename[1]; /* path specified in #include */
584 } CachedInclude;
585
586 #define CACHED_INCLUDES_HASH_SIZE 512
587
588 #ifdef CONFIG_TCC_ASM
589 typedef struct ExprValue {
590 uint32_t v;
591 Sym *sym;
592 } ExprValue;
593
594 #define MAX_ASM_OPERANDS 30
595 typedef struct ASMOperand {
596 int id; /* GCC 3 optionnal identifier (0 if number only supported */
597 char *constraint;
598 char asm_str[16]; /* computed asm string for operand */
599 SValue *vt; /* C value of the expression */
600 int ref_index; /* if >= 0, gives reference to a output constraint */
601 int input_index; /* if >= 0, gives reference to an input constraint */
602 int priority; /* priority, used to assign registers */
603 int reg; /* if >= 0, register number used for this operand */
604 int is_llong; /* true if double register value */
605 int is_memory; /* true if memory operand */
606 int is_rw; /* for '+' modifier */
607 } ASMOperand;
608 #endif
609
610 struct sym_attr {
611 unsigned long got_offset;
612 unsigned long plt_offset;
613 #ifdef TCC_TARGET_ARM
614 unsigned char plt_thumb_stub:1;
615 #endif
616 };
617
618 struct TCCState {
619
620 int verbose; /* if true, display some information during compilation */
621 int nostdinc; /* if true, no standard headers are added */
622 int nostdlib; /* if true, no standard libraries are added */
623 int nocommon; /* if true, do not use common symbols for .bss data */
624 int static_link; /* if true, static linking is performed */
625 int rdynamic; /* if true, all symbols are exported */
626 int symbolic; /* if true, resolve symbols in the current module first */
627 int alacarte_link; /* if true, only link in referenced objects from archive */
628
629 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
630 char *soname; /* as specified on the command line (-soname) */
631 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
632
633 /* output type, see TCC_OUTPUT_XXX */
634 int output_type;
635 /* output format, see TCC_OUTPUT_FORMAT_xxx */
636 int output_format;
637
638 /* C language options */
639 int char_is_unsigned;
640 int leading_underscore;
641 int ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
642 int old_struct_init_code; /* use old algorithm to init array in struct when there is no '{' used.
643 Liuux 2.4.26 can't find initrd when compiled with a new algorithm */
644 int dollars_in_identifiers; /* allows '$' char in indentifiers */
645
646 /* warning switches */
647 int warn_write_strings;
648 int warn_unsupported;
649 int warn_error;
650 int warn_none;
651 int warn_implicit_function_declaration;
652
653 /* compile with debug symbol (and use them if error during execution) */
654 int do_debug;
655 int do_strip;
656 #ifdef CONFIG_TCC_BCHECK
657 /* compile with built-in memory and bounds checker */
658 int do_bounds_check;
659 #endif
660 #ifdef TCC_TARGET_ARM
661 enum float_abi float_abi; /* float ABI of the generated code*/
662 #endif
663
664 addr_t text_addr; /* address of text section */
665 int has_text_addr;
666
667 unsigned long section_align; /* section alignment */
668
669 char *init_symbol; /* symbols to call at load-time (not used currently) */
670 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
671
672 #ifdef TCC_TARGET_I386
673 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
674 #endif
675
676 /* array of all loaded dlls (including those referenced by loaded dlls) */
677 DLLReference **loaded_dlls;
678 int nb_loaded_dlls;
679
680 /* include paths */
681 char **include_paths;
682 int nb_include_paths;
683
684 char **sysinclude_paths;
685 int nb_sysinclude_paths;
686
687 /* library paths */
688 char **library_paths;
689 int nb_library_paths;
690
691 /* crt?.o object path */
692 char **crt_paths;
693 int nb_crt_paths;
694
695 /* error handling */
696 void *error_opaque;
697 void (*error_func)(void *opaque, const char *msg);
698 int error_set_jmp_enabled;
699 jmp_buf error_jmp_buf;
700 int nb_errors;
701
702 /* output file for preprocessing (-E) */
703 FILE *ppfp;
704 enum {
705 LINE_MACRO_OUTPUT_FORMAT_GCC,
706 LINE_MACRO_OUTPUT_FORMAT_NONE,
707 LINE_MACRO_OUTPUT_FORMAT_STD
708 } Pflag; /* -P switch */
709 int dflag; /* -dX value */
710
711 /* for -MD/-MF: collected dependencies for this compilation */
712 char **target_deps;
713 int nb_target_deps;
714
715 /* compilation */
716 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
717 BufferedFile **include_stack_ptr;
718
719 int ifdef_stack[IFDEF_STACK_SIZE];
720 int *ifdef_stack_ptr;
721
722 /* included files enclosed with #ifndef MACRO */
723 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
724 CachedInclude **cached_includes;
725 int nb_cached_includes;
726
727 /* #pragma pack stack */
728 int pack_stack[PACK_STACK_SIZE];
729 int *pack_stack_ptr;
730 char **pragma_libs;
731 int nb_pragma_libs;
732
733 /* inline functions are stored as token lists and compiled last
734 only if referenced */
735 struct InlineFunc **inline_fns;
736 int nb_inline_fns;
737
738 /* sections */
739 Section **sections;
740 int nb_sections; /* number of sections, including first dummy section */
741
742 Section **priv_sections;
743 int nb_priv_sections; /* number of private sections */
744
745 /* got & plt handling */
746 Section *got;
747 Section *plt;
748 struct sym_attr *sym_attrs;
749 int nb_sym_attrs;
750 /* give the correspondance from symtab indexes to dynsym indexes */
751 int *symtab_to_dynsym;
752
753 /* temporary dynamic symbol sections (for dll loading) */
754 Section *dynsymtab_section;
755 /* exported dynamic symbol section */
756 Section *dynsym;
757 /* copy of the gobal symtab_section variable */
758 Section *symtab;
759 /* tiny assembler state */
760 Sym *asm_labels;
761
762 #ifdef TCC_TARGET_PE
763 /* PE info */
764 int pe_subsystem;
765 unsigned pe_file_align;
766 unsigned pe_stack_size;
767 # ifdef TCC_TARGET_X86_64
768 Section *uw_pdata;
769 int uw_sym;
770 unsigned uw_offs;
771 # endif
772 #endif
773
774 #ifdef TCC_IS_NATIVE
775 const char *runtime_main;
776 /* for tcc_relocate */
777 void *runtime_mem;
778 # ifdef HAVE_SELINUX
779 void *write_mem;
780 unsigned long mem_size;
781 # endif
782 #endif
783
784 /* used by main and tcc_parse_args only */
785 char **files; /* files seen on command line */
786 int nb_files; /* number thereof */
787 int nb_libraries; /* number of libs thereof */
788 char *outfile; /* output filename */
789 char *option_m; /* only -m32/-m64 handled */
790 int print_search_dirs; /* option */
791 int option_r; /* option -r */
792 int do_bench; /* option -bench */
793 int gen_deps; /* option -MD */
794 char *deps_outfile; /* option -MF */
795 };
796
797 /* The current value can be: */
798 #define VT_VALMASK 0x003f /* mask for value location, register or: */
799 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
800 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
801 #define VT_LOCAL 0x0032 /* offset on stack */
802 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
803 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
804 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
805 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
806 #define VT_LVAL 0x0100 /* var is an lvalue */
807 #define VT_SYM 0x0200 /* a symbol value is added */
808 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
809 char/short stored in integer registers) */
810 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
811 dereferencing value */
812 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
813 bounding function call point is in vc */
814 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
815 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
816 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
817 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
818
819 /* types */
820 #define VT_BTYPE 0x000f /* mask for basic type */
821 #define VT_INT 0 /* integer type */
822 #define VT_BYTE 1 /* signed byte type */
823 #define VT_SHORT 2 /* short type */
824 #define VT_VOID 3 /* void type */
825 #define VT_PTR 4 /* pointer */
826 #define VT_ENUM 5 /* enum definition */
827 #define VT_FUNC 6 /* function type */
828 #define VT_STRUCT 7 /* struct/union definition */
829 #define VT_FLOAT 8 /* IEEE float */
830 #define VT_DOUBLE 9 /* IEEE double */
831 #define VT_LDOUBLE 10 /* IEEE long double */
832 #define VT_BOOL 11 /* ISOC99 boolean type */
833 #define VT_LLONG 12 /* 64 bit integer */
834 #define VT_LONG 13 /* long integer (NEVER USED as type, only
835 during parsing) */
836 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
837 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
838 #define VT_UNSIGNED 0x0010 /* unsigned type */
839 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
840 #define VT_BITFIELD 0x0040 /* bitfield modifier */
841 #define VT_CONSTANT 0x0800 /* const modifier */
842 #define VT_VOLATILE 0x1000 /* volatile modifier */
843 #define VT_DEFSIGN 0x2000 /* signed type */
844 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
845
846 /* storage */
847 #define VT_EXTERN 0x00000080 /* extern definition */
848 #define VT_STATIC 0x00000100 /* static variable */
849 #define VT_TYPEDEF 0x00000200 /* typedef definition */
850 #define VT_INLINE 0x00000400 /* inline definition */
851 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
852 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
853 #define VT_WEAK 0x00010000 /* weak symbol */
854 #define VT_TLS 0x00040000 /* thread-local storage */
855 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
856 bitfield values, because bitfields never
857 have linkage and hence never have
858 visibility. */
859 #define VT_VIS_SIZE 2 /* We have four visibilities. */
860 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
861
862 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
863
864
865 /* type mask (except storage) */
866 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
867 #define VT_TYPE (~(VT_STORAGE))
868
869 /* token values */
870
871 /* warning: the following compare tokens depend on i386 asm code */
872 #define TOK_ULT 0x92
873 #define TOK_UGE 0x93
874 #define TOK_EQ 0x94
875 #define TOK_NE 0x95
876 #define TOK_ULE 0x96
877 #define TOK_UGT 0x97
878 #define TOK_Nset 0x98
879 #define TOK_Nclear 0x99
880 #define TOK_LT 0x9c
881 #define TOK_GE 0x9d
882 #define TOK_LE 0x9e
883 #define TOK_GT 0x9f
884
885 #define TOK_LAND 0xa0
886 #define TOK_LOR 0xa1
887 #define TOK_DEC 0xa2
888 #define TOK_MID 0xa3 /* inc/dec, to void constant */
889 #define TOK_INC 0xa4
890 #define TOK_UDIV 0xb0 /* unsigned division */
891 #define TOK_UMOD 0xb1 /* unsigned modulo */
892 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
893
894 /* tokens that carry values (in additional token string space / tokc) --> */
895 #define TOK_CCHAR 0xb3 /* char constant in tokc */
896 #define TOK_LCHAR 0xb4
897 #define TOK_CINT 0xb5 /* number in tokc */
898 #define TOK_CUINT 0xb6 /* unsigned int constant */
899 #define TOK_CLLONG 0xb7 /* long long constant */
900 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
901 #define TOK_STR 0xb9 /* pointer to string in tokc */
902 #define TOK_LSTR 0xba
903 #define TOK_CFLOAT 0xbb /* float constant */
904 #define TOK_CDOUBLE 0xbc /* double constant */
905 #define TOK_CLDOUBLE 0xbd /* long double constant */
906 #define TOK_PPNUM 0xbe /* preprocessor number */
907 #define TOK_PPSTR 0xbf /* preprocessor string */
908 #define TOK_LINENUM 0xc0 /* line number info */
909 /* <-- */
910
911 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
912 #define TOK_ADDC1 0xc3 /* add with carry generation */
913 #define TOK_ADDC2 0xc4 /* add with carry use */
914 #define TOK_SUBC1 0xc5 /* add with carry generation */
915 #define TOK_SUBC2 0xc6 /* add with carry use */
916 #define TOK_ARROW 0xc7
917 #define TOK_DOTS 0xc8 /* three dots */
918 #define TOK_SHR 0xc9 /* unsigned shift right */
919 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
920 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
921 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
922
923 #define TOK_SHL 0x01 /* shift left */
924 #define TOK_SAR 0x02 /* signed shift right */
925
926 /* assignement operators : normal operator or 0x80 */
927 #define TOK_A_MOD 0xa5
928 #define TOK_A_AND 0xa6
929 #define TOK_A_MUL 0xaa
930 #define TOK_A_ADD 0xab
931 #define TOK_A_SUB 0xad
932 #define TOK_A_DIV 0xaf
933 #define TOK_A_XOR 0xde
934 #define TOK_A_OR 0xfc
935 #define TOK_A_SHL 0x81
936 #define TOK_A_SAR 0x82
937
938 #ifndef offsetof
939 #define offsetof(type, field) ((size_t) &((type *)0)->field)
940 #endif
941
942 #ifndef countof
943 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
944 #endif
945
946 #define TOK_EOF (-1) /* end of file */
947 #define TOK_LINEFEED 10 /* line feed */
948
949 /* all identificators and strings have token above that */
950 #define TOK_IDENT 256
951
952 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
953 #define TOK_ASM_int TOK_INT
954 #define TOK_ASM_weak TOK_WEAK1
955
956 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
957 /* only used for i386 asm opcodes definitions */
958 #define DEF_BWL(x) \
959 DEF(TOK_ASM_ ## x ## b, #x "b") \
960 DEF(TOK_ASM_ ## x ## w, #x "w") \
961 DEF(TOK_ASM_ ## x ## l, #x "l") \
962 DEF(TOK_ASM_ ## x, #x)
963 #define DEF_WL(x) \
964 DEF(TOK_ASM_ ## x ## w, #x "w") \
965 DEF(TOK_ASM_ ## x ## l, #x "l") \
966 DEF(TOK_ASM_ ## x, #x)
967 #ifdef TCC_TARGET_X86_64
968 # define DEF_BWLQ(x) \
969 DEF(TOK_ASM_ ## x ## b, #x "b") \
970 DEF(TOK_ASM_ ## x ## w, #x "w") \
971 DEF(TOK_ASM_ ## x ## l, #x "l") \
972 DEF(TOK_ASM_ ## x ## q, #x "q") \
973 DEF(TOK_ASM_ ## x, #x)
974 # define DEF_WLQ(x) \
975 DEF(TOK_ASM_ ## x ## w, #x "w") \
976 DEF(TOK_ASM_ ## x ## l, #x "l") \
977 DEF(TOK_ASM_ ## x ## q, #x "q") \
978 DEF(TOK_ASM_ ## x, #x)
979 # define DEF_BWLX DEF_BWLQ
980 # define DEF_WLX DEF_WLQ
981 /* number of sizes + 1 */
982 # define NBWLX 5
983 #else
984 # define DEF_BWLX DEF_BWL
985 # define DEF_WLX DEF_WL
986 /* number of sizes + 1 */
987 # define NBWLX 4
988 #endif
989
990 #define DEF_FP1(x) \
991 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
992 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
993 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
994 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
995
996 #define DEF_FP(x) \
997 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
998 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
999 DEF_FP1(x)
1000
1001 #define DEF_ASMTEST(x,suffix) \
1002 DEF_ASM(x ## o ## suffix) \
1003 DEF_ASM(x ## no ## suffix) \
1004 DEF_ASM(x ## b ## suffix) \
1005 DEF_ASM(x ## c ## suffix) \
1006 DEF_ASM(x ## nae ## suffix) \
1007 DEF_ASM(x ## nb ## suffix) \
1008 DEF_ASM(x ## nc ## suffix) \
1009 DEF_ASM(x ## ae ## suffix) \
1010 DEF_ASM(x ## e ## suffix) \
1011 DEF_ASM(x ## z ## suffix) \
1012 DEF_ASM(x ## ne ## suffix) \
1013 DEF_ASM(x ## nz ## suffix) \
1014 DEF_ASM(x ## be ## suffix) \
1015 DEF_ASM(x ## na ## suffix) \
1016 DEF_ASM(x ## nbe ## suffix) \
1017 DEF_ASM(x ## a ## suffix) \
1018 DEF_ASM(x ## s ## suffix) \
1019 DEF_ASM(x ## ns ## suffix) \
1020 DEF_ASM(x ## p ## suffix) \
1021 DEF_ASM(x ## pe ## suffix) \
1022 DEF_ASM(x ## np ## suffix) \
1023 DEF_ASM(x ## po ## suffix) \
1024 DEF_ASM(x ## l ## suffix) \
1025 DEF_ASM(x ## nge ## suffix) \
1026 DEF_ASM(x ## nl ## suffix) \
1027 DEF_ASM(x ## ge ## suffix) \
1028 DEF_ASM(x ## le ## suffix) \
1029 DEF_ASM(x ## ng ## suffix) \
1030 DEF_ASM(x ## nle ## suffix) \
1031 DEF_ASM(x ## g ## suffix)
1032
1033 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1034
1035 enum tcc_token {
1036 TOK_LAST = TOK_IDENT - 1
1037 #define DEF(id, str) ,id
1038 #include "tcctok.h"
1039 #undef DEF
1040 };
1041
1042 #define TOK_UIDENT TOK_DEFINE
1043
1044 /* space exlcuding newline */
1045 static inline int is_space(int ch)
1046 {
1047 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1048 }
1049
1050 static inline int isid(int c)
1051 {
1052 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1053 }
1054
1055 static inline int isnum(int c)
1056 {
1057 return c >= '0' && c <= '9';
1058 }
1059
1060 static inline int isoct(int c)
1061 {
1062 return c >= '0' && c <= '7';
1063 }
1064
1065 static inline int toup(int c)
1066 {
1067 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1068 }
1069
1070 #ifndef PUB_FUNC
1071 # define PUB_FUNC
1072 #endif
1073
1074 #ifdef ONE_SOURCE
1075 #define ST_INLN static inline
1076 #define ST_FUNC static
1077 #define ST_DATA static
1078 #else
1079 #define ST_INLN
1080 #define ST_FUNC
1081 #define ST_DATA extern
1082 #endif
1083
1084 /* ------------ libtcc.c ------------ */
1085
1086 /* use GNU C extensions */
1087 ST_DATA int gnu_ext;
1088 /* use Tiny C extensions */
1089 ST_DATA int tcc_ext;
1090 /* XXX: get rid of this ASAP */
1091 ST_DATA struct TCCState *tcc_state;
1092
1093 #define AFF_PRINT_ERROR 0x0001 /* print error if file not found */
1094 #define AFF_REFERENCED_DLL 0x0002 /* load a referenced dll from another dll */
1095 #define AFF_PREPROCESS 0x0004 /* preprocess file */
1096
1097 /* public functions currently used by the tcc main function */
1098 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1099 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1100 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1101 PUB_FUNC char *tcc_basename(const char *name);
1102 PUB_FUNC char *tcc_fileextension (const char *name);
1103
1104 #ifndef MEM_DEBUG
1105 PUB_FUNC void tcc_free(void *ptr);
1106 PUB_FUNC void *tcc_malloc(unsigned long size);
1107 PUB_FUNC void *tcc_mallocz(unsigned long size);
1108 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1109 PUB_FUNC char *tcc_strdup(const char *str);
1110 #else
1111 #define tcc_free(ptr) tcc_free_debug(ptr)
1112 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1113 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1114 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1115 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1116 PUB_FUNC void tcc_free_debug(void *ptr);
1117 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1118 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1119 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1120 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1121 #endif
1122
1123 #define free(p) use_tcc_free(p)
1124 #define malloc(s) use_tcc_malloc(s)
1125 #define realloc(p, s) use_tcc_realloc(p, s)
1126 #undef strdup
1127 #define strdup(s) use_tcc_strdup(s)
1128 PUB_FUNC void tcc_memstats(int bench);
1129 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1130 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1131 PUB_FUNC void tcc_warning(const char *fmt, ...);
1132
1133 /* other utilities */
1134 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1135 ST_FUNC void dynarray_reset(void *pp, int *n);
1136 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1137 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1138 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1139 ST_FUNC void cstr_new(CString *cstr);
1140 ST_FUNC void cstr_free(CString *cstr);
1141 ST_FUNC void cstr_reset(CString *cstr);
1142
1143 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1144 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1145 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1146 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1147 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1148
1149 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1150 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1151 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1152 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1153
1154 ST_INLN void sym_free(Sym *sym);
1155 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1156 ST_FUNC Sym *sym_find2(Sym *s, int v);
1157 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1158 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1159 ST_INLN Sym *struct_find(int v);
1160 ST_INLN Sym *sym_find(int v);
1161 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1162
1163 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1164 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1165 ST_FUNC void tcc_close(void);
1166
1167 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype);
1168 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1169
1170 #ifndef TCC_TARGET_PE
1171 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1172 #endif
1173
1174 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1175 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1176
1177 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1178 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1179 PUB_FUNC void tcc_set_environment(TCCState *s);
1180
1181 /* ------------ tccpp.c ------------ */
1182
1183 ST_DATA struct BufferedFile *file;
1184 ST_DATA int ch, tok;
1185 ST_DATA CValue tokc;
1186 ST_DATA const int *macro_ptr;
1187 ST_DATA int parse_flags;
1188 ST_DATA int tok_flags;
1189 ST_DATA CString tokcstr; /* current parsed string, if any */
1190
1191 /* display benchmark infos */
1192 ST_DATA int total_lines;
1193 ST_DATA int total_bytes;
1194 ST_DATA int tok_ident;
1195 ST_DATA TokenSym **table_ident;
1196
1197 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1198 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1199 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1200 #define TOK_FLAG_EOF 0x0008 /* end of file */
1201
1202 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1203 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1204 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1205 token. line feed is also
1206 returned at eof */
1207 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1208 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1209 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1210 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1211
1212 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1213 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1214 ST_FUNC void begin_macro(TokenString *str, int alloc);
1215 ST_FUNC void end_macro(void);
1216 ST_FUNC void save_parse_state(ParseState *s);
1217 ST_FUNC void restore_parse_state(ParseState *s);
1218 ST_INLN void tok_str_new(TokenString *s);
1219 ST_FUNC void tok_str_free(int *str);
1220 ST_FUNC void tok_str_add(TokenString *s, int t);
1221 ST_FUNC void tok_str_add_tok(TokenString *s);
1222 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1223 ST_FUNC void define_undef(Sym *s);
1224 ST_INLN Sym *define_find(int v);
1225 ST_FUNC void free_defines(Sym *b);
1226 ST_FUNC void print_defines(void);
1227 ST_FUNC Sym *label_find(int v);
1228 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1229 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1230 ST_FUNC void parse_define(void);
1231 ST_FUNC void preprocess(int is_bof);
1232 ST_FUNC void next_nomacro(void);
1233 ST_FUNC void next(void);
1234 ST_INLN void unget_tok(int last_tok);
1235 ST_FUNC void preprocess_init(TCCState *s1);
1236 ST_FUNC void preprocess_new(void);
1237 ST_FUNC void preprocess_delete(void);
1238 ST_FUNC int tcc_preprocess(TCCState *s1);
1239 ST_FUNC void skip(int c);
1240 ST_FUNC NORETURN void expect(const char *msg);
1241
1242 /* ------------ tccgen.c ------------ */
1243
1244 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1245 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1246 #ifdef CONFIG_TCC_ASM
1247 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1248 #endif
1249 #ifdef CONFIG_TCC_BCHECK
1250 /* bound check related sections */
1251 ST_DATA Section *bounds_section; /* contains global data bound description */
1252 ST_DATA Section *lbounds_section; /* contains local data bound description */
1253 #endif
1254 /* symbol sections */
1255 ST_DATA Section *symtab_section, *strtab_section;
1256 /* debug sections */
1257 ST_DATA Section *stab_section, *stabstr_section;
1258
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;
1263
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;
1273
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;
1282
1283 ST_FUNC void check_vstack(void);
1284 ST_INLN int is_float(int t);
1285 ST_FUNC int ieee_finite(double d);
1286 ST_FUNC void test_lvalue(void);
1287 ST_FUNC void swap(int *p, int *q);
1288 ST_FUNC void vpushi(int v);
1289 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1290 ST_FUNC void vset(CType *type, int r, int v);
1291 ST_FUNC void vswap(void);
1292 ST_FUNC void vpush_global_sym(CType *type, int v);
1293 ST_FUNC void vrote(SValue *e, int n);
1294 ST_FUNC void vrott(int n);
1295 ST_FUNC void vrotb(int n);
1296 #ifdef TCC_TARGET_ARM
1297 ST_FUNC int get_reg_ex(int rc, int rc2);
1298 ST_FUNC void lexpand_nr(void);
1299 #endif
1300 ST_FUNC void vpushv(SValue *v);
1301 ST_FUNC void save_reg(int r);
1302 ST_FUNC int get_reg(int rc);
1303 ST_FUNC void save_regs(int n);
1304 ST_FUNC void gaddrof(void);
1305 ST_FUNC int gv(int rc);
1306 ST_FUNC void gv2(int rc1, int rc2);
1307 ST_FUNC void vpop(void);
1308 ST_FUNC void gen_op(int op);
1309 ST_FUNC int type_size(CType *type, int *a);
1310 ST_FUNC void mk_pointer(CType *type);
1311 ST_FUNC void vstore(void);
1312 ST_FUNC void inc(int post, int c);
1313 ST_FUNC void parse_asm_str(CString *astr);
1314 ST_FUNC int lvalue_type(int t);
1315 ST_FUNC void indir(void);
1316 ST_FUNC void unary(void);
1317 ST_FUNC void expr_prod(void);
1318 ST_FUNC void expr_sum(void);
1319 ST_FUNC void gexpr(void);
1320 ST_FUNC int expr_const(void);
1321 ST_FUNC void gen_inline_functions(void);
1322 ST_FUNC void decl(int l);
1323 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1324 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1325 #endif
1326 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1327 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1328 #endif
1329
1330 /* ------------ tccelf.c ------------ */
1331
1332 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1333 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1334 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1335
1336 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1337
1338 typedef struct {
1339 unsigned int n_strx; /* index into string table of name */
1340 unsigned char n_type; /* type of symbol */
1341 unsigned char n_other; /* misc info (usually empty) */
1342 unsigned short n_desc; /* description field */
1343 unsigned int n_value; /* value of symbol */
1344 } Stab_Sym;
1345
1346 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);
1347
1348 ST_FUNC int put_elf_str(Section *s, const char *sym);
1349 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1350 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1351 ST_FUNC int find_elf_sym(Section *s, const char *name);
1352 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1353 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1354
1355 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1356 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1357 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1358 ST_FUNC void put_stabd(int type, int other, int desc);
1359
1360 ST_FUNC void relocate_common_syms(void);
1361 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1362 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1363 ST_FUNC void relocate_plt(TCCState *s1);
1364
1365 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1366 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1367 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1368 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1369
1370 ST_FUNC void build_got_entries(TCCState *s1);
1371 ST_FUNC void tcc_add_runtime(TCCState *s1);
1372
1373 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1374 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1375 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1376 #endif
1377
1378 #ifndef TCC_TARGET_PE
1379 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1380 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1381 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1382 ST_FUNC void minp(void);
1383 ST_INLN void inp(void);
1384 ST_FUNC int handle_eob(void);
1385 #endif
1386
1387 /* ------------ xxx-gen.c ------------ */
1388
1389 ST_DATA const int reg_classes[NB_REGS];
1390
1391 ST_FUNC void gsym_addr(int t, int a);
1392 ST_FUNC void gsym(int t);
1393 ST_FUNC void load(int r, SValue *sv);
1394 ST_FUNC void store(int r, SValue *v);
1395 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1396 ST_FUNC void gfunc_call(int nb_args);
1397 ST_FUNC void gfunc_prolog(CType *func_type);
1398 ST_FUNC void gfunc_epilog(void);
1399 ST_FUNC int gjmp(int t);
1400 ST_FUNC void gjmp_addr(int a);
1401 ST_FUNC int gtst(int inv, int t);
1402 ST_FUNC void gen_opi(int op);
1403 ST_FUNC void gen_opf(int op);
1404 ST_FUNC void gen_cvt_ftoi(int t);
1405 ST_FUNC void gen_cvt_ftof(int t);
1406 ST_FUNC void ggoto(void);
1407 #ifndef TCC_TARGET_C67
1408 ST_FUNC void o(unsigned int c);
1409 #endif
1410 #ifndef TCC_TARGET_ARM
1411 ST_FUNC void gen_cvt_itof(int t);
1412 #endif
1413 ST_FUNC void gen_vla_sp_save(int addr);
1414 ST_FUNC void gen_vla_sp_restore(int addr);
1415 ST_FUNC void gen_vla_alloc(CType *type, int align);
1416
1417 /* ------------ i386-gen.c ------------ */
1418 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1419 ST_FUNC void g(int c);
1420 ST_FUNC int oad(int c, int s);
1421 ST_FUNC void gen_le16(int c);
1422 ST_FUNC void gen_le32(int c);
1423 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1424 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1425 #endif
1426
1427 #ifdef CONFIG_TCC_BCHECK
1428 ST_FUNC void gen_bounded_ptr_add(void);
1429 ST_FUNC void gen_bounded_ptr_deref(void);
1430 #endif
1431
1432 /* ------------ x86_64-gen.c ------------ */
1433 #ifdef TCC_TARGET_X86_64
1434 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1435 ST_FUNC void gen_opl(int op);
1436 #endif
1437
1438 /* ------------ arm-gen.c ------------ */
1439 #ifdef TCC_TARGET_ARM
1440 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1441 ST_FUNC char *default_elfinterp(struct TCCState *s);
1442 #endif
1443 ST_FUNC void arm_init(struct TCCState *s);
1444 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1445 ST_FUNC void gen_cvt_itof1(int t);
1446 #endif
1447
1448 /* ------------ arm64-gen.c ------------ */
1449 #ifdef TCC_TARGET_ARM64
1450 ST_FUNC void gen_cvt_sxtw(void);
1451 ST_FUNC void gen_opl(int op);
1452 ST_FUNC void greturn(void);
1453 ST_FUNC void gen_va_start(void);
1454 ST_FUNC void gen_va_arg(CType *t);
1455 ST_FUNC void gen_clear_cache(void);
1456 #endif
1457
1458 /* ------------ c67-gen.c ------------ */
1459 #ifdef TCC_TARGET_C67
1460 #endif
1461
1462 /* ------------ tcccoff.c ------------ */
1463
1464 #ifdef TCC_TARGET_COFF
1465 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1466 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1467 #endif
1468
1469 /* ------------ tccasm.c ------------ */
1470 ST_FUNC void asm_instr(void);
1471 ST_FUNC void asm_global_instr(void);
1472 #ifdef CONFIG_TCC_ASM
1473 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1474 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1475 ST_FUNC int asm_int_expr(TCCState *s1);
1476 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1477 /* ------------ i386-asm.c ------------ */
1478 ST_FUNC void gen_expr32(ExprValue *pe);
1479 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1480 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1481 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1482 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1483 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1484 #endif
1485
1486 /* ------------ tccpe.c -------------- */
1487 #ifdef TCC_TARGET_PE
1488 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1489 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1490 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1491 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1492 #ifdef TCC_TARGET_X86_64
1493 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1494 #endif
1495 /* symbol properties stored in Elf32_Sym->st_other */
1496 # define ST_PE_EXPORT 0x10
1497 # define ST_PE_IMPORT 0x20
1498 # define ST_PE_STDCALL 0x40
1499 #endif
1500
1501 /* ------------ tccrun.c ----------------- */
1502 #ifdef TCC_IS_NATIVE
1503 #ifdef CONFIG_TCC_STATIC
1504 #define RTLD_LAZY 0x001
1505 #define RTLD_NOW 0x002
1506 #define RTLD_GLOBAL 0x100
1507 #define RTLD_DEFAULT NULL
1508 /* dummy function for profiling */
1509 ST_FUNC void *dlopen(const char *filename, int flag);
1510 ST_FUNC void dlclose(void *p);
1511 ST_FUNC const char *dlerror(void);
1512 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1513 #elif !defined _WIN32
1514 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1515 #endif
1516
1517 #ifdef CONFIG_TCC_BACKTRACE
1518 ST_DATA int rt_num_callers;
1519 ST_DATA const char **rt_bound_error_msg;
1520 ST_DATA void *rt_prog_main;
1521 ST_FUNC void tcc_set_num_callers(int n);
1522 #endif
1523 #endif
1524
1525 /********************************************************/
1526 #undef ST_DATA
1527 #ifdef ONE_SOURCE
1528 #define ST_DATA static
1529 #else
1530 #define ST_DATA
1531 #endif
1532 /********************************************************/
1533 #endif /* _TCC_H */
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