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tcc_undefine_symbol(): free an alloced symbol
[tinycc.git] / tcc.h
blob34d32481aad57adc4be265e7c4a6703ebc45cec5
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(TCC_TARGET_X86_64) && !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 # define CONFIG_LDDIR "lib"
209 #endif
210
211 #ifdef CONFIG_MULTIARCHDIR
212 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
213 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
214 #else
215 # define USE_MUADIR(s) s
216 # define ALSO_MUADIR(s) s
217 #endif
218
219 /* path to find crt1.o, crti.o and crtn.o */
220 #ifndef CONFIG_TCC_CRTPREFIX
221 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
222 #endif
223
224 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
225
226 /* system include paths */
227 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
228 # ifdef TCC_TARGET_PE
229 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
230 # else
231 # define CONFIG_TCC_SYSINCLUDEPATHS \
232 ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
233 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") \
234 ":" "{B}/include"
235 # endif
236 #endif
237
238 /* library search paths */
239 #ifndef CONFIG_TCC_LIBPATHS
240 # ifdef TCC_TARGET_PE
241 # define CONFIG_TCC_LIBPATHS "{B}/lib"
242 # else
243 # define CONFIG_TCC_LIBPATHS \
244 ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
245 ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
246 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
247 # endif
248 #endif
249
250 /* name of ELF interpreter */
251 #ifndef CONFIG_TCC_ELFINTERP
252 # if defined __FreeBSD__
253 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
254 # elif defined __FreeBSD_kernel__
255 # if defined(TCC_TARGET_X86_64)
256 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
257 # else
258 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
259 # endif
260 # elif defined __DragonFly__
261 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
262 # elif defined __GNU__
263 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
264 # elif defined TCC_TARGET_ARM64
265 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
266 # elif defined(TCC_TARGET_X86_64)
267 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
268 # elif defined(TCC_UCLIBC)
269 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0"
270 # elif defined(TCC_TARGET_PE)
271 # define CONFIG_TCC_ELFINTERP "-"
272 # elif !defined(TCC_ARM_EABI)
273 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
274 # endif
275 #endif
276
277 /* var elf_interp dans *-gen.c */
278 #ifdef CONFIG_TCC_ELFINTERP
279 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
280 #else
281 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
282 #endif
283
284 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
285 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
286
287 /* -------------------------------------------- */
288 /* include the target specific definitions */
289
290 #define TARGET_DEFS_ONLY
291 #ifdef TCC_TARGET_I386
292 # include "i386-gen.c"
293 #endif
294 #ifdef TCC_TARGET_X86_64
295 # include "x86_64-gen.c"
296 #endif
297 #ifdef TCC_TARGET_ARM
298 # include "arm-gen.c"
299 #endif
300 #ifdef TCC_TARGET_ARM64
301 # include "arm64-gen.c"
302 #endif
303 #ifdef TCC_TARGET_C67
304 # include "coff.h"
305 # include "c67-gen.c"
306 #endif
307 #undef TARGET_DEFS_ONLY
308
309 /* -------------------------------------------- */
310
311 #define INCLUDE_STACK_SIZE 32
312 #define IFDEF_STACK_SIZE 64
313 #define VSTACK_SIZE 256
314 #define STRING_MAX_SIZE 1024
315 #define PACK_STACK_SIZE 8
316
317 #define TOK_HASH_SIZE 8192 /* must be a power of two */
318 #define TOK_ALLOC_INCR 512 /* must be a power of two */
319 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
320
321 /* token symbol management */
322 typedef struct TokenSym {
323 struct TokenSym *hash_next;
324 struct Sym *sym_define; /* direct pointer to define */
325 struct Sym *sym_label; /* direct pointer to label */
326 struct Sym *sym_struct; /* direct pointer to structure */
327 struct Sym *sym_identifier; /* direct pointer to identifier */
328 int tok; /* token number */
329 int len;
330 char str[1];
331 } TokenSym;
332
333 #ifdef TCC_TARGET_PE
334 typedef unsigned short nwchar_t;
335 #else
336 typedef int nwchar_t;
337 #endif
338
339 typedef struct CString {
340 int size; /* size in bytes */
341 void *data; /* either 'char *' or 'nwchar_t *' */
342 int size_allocated;
343 void *data_allocated; /* if non NULL, data has been malloced */
344 } CString;
345
346 /* type definition */
347 typedef struct CType {
348 int t;
349 struct Sym *ref;
350 } CType;
351
352 /* constant value */
353 typedef union CValue {
354 long double ld;
355 double d;
356 float f;
357 int i;
358 unsigned int ui;
359 unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
360 long long ll;
361 unsigned long long ull;
362 struct CString *cstr;
363 addr_t ptr_offset;
364 int tab[LDOUBLE_SIZE/4];
365 } CValue;
366
367 /* value on stack */
368 typedef struct SValue {
369 CType type; /* type */
370 unsigned short r; /* register + flags */
371 unsigned short r2; /* second register, used for 'long long'
372 type. If not used, set to VT_CONST */
373 CValue c; /* constant, if VT_CONST */
374 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */
375 } SValue;
376
377 struct Attribute {
378 unsigned
379 func_call : 3, /* calling convention (0..5), see below */
380 aligned : 5, /* alignement (0..16) */
381 packed : 1,
382 func_export : 1,
383 func_import : 1,
384 func_args : 5,
385 func_proto : 1,
386 mode : 4,
387 weak : 1,
388 visibility : 2,
389 fill : 8; // 8 bits left to fit well in union below
390 };
391
392 /* GNUC attribute definition */
393 typedef struct AttributeDef {
394 struct Attribute a;
395 struct Section *section;
396 int alias_target; /* token */
397 } AttributeDef;
398
399 /* symbol management */
400 typedef struct Sym {
401 int v; /* symbol token */
402 char *asm_label; /* associated asm label */
403 union {
404 long r; /* associated register */
405 struct Attribute a;
406 };
407 union {
408 long c; /* associated number */
409 int *d; /* define token stream */
410 };
411 CType type; /* associated type */
412 union {
413 struct Sym *next; /* next related symbol */
414 long jnext; /* next jump label */
415 };
416 struct Sym *prev; /* prev symbol in stack */
417 struct Sym *prev_tok; /* previous symbol for this token */
418 } Sym;
419
420 /* section definition */
421 /* XXX: use directly ELF structure for parameters ? */
422 /* special flag to indicate that the section should not be linked to
423 the other ones */
424 #define SHF_PRIVATE 0x80000000
425
426 /* special flag, too */
427 #define SECTION_ABS ((void *)1)
428
429 typedef struct Section {
430 unsigned long data_offset; /* current data offset */
431 unsigned char *data; /* section data */
432 unsigned long data_allocated; /* used for realloc() handling */
433 int sh_name; /* elf section name (only used during output) */
434 int sh_num; /* elf section number */
435 int sh_type; /* elf section type */
436 int sh_flags; /* elf section flags */
437 int sh_info; /* elf section info */
438 int sh_addralign; /* elf section alignment */
439 int sh_entsize; /* elf entry size */
440 unsigned long sh_size; /* section size (only used during output) */
441 addr_t sh_addr; /* address at which the section is relocated */
442 unsigned long sh_offset; /* file offset */
443 int nb_hashed_syms; /* used to resize the hash table */
444 struct Section *link; /* link to another section */
445 struct Section *reloc; /* corresponding section for relocation, if any */
446 struct Section *hash; /* hash table for symbols */
447 struct Section *next;
448 char name[1]; /* section name */
449 } Section;
450
451 typedef struct DLLReference {
452 int level;
453 void *handle;
454 char name[1];
455 } DLLReference;
456
457 /* -------------------------------------------------- */
458
459 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
460 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
461 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
462
463 #define VLA_SP_LOC_SET 0x01 /* Location of SP on stack has been allocated */
464 #define VLA_SP_SAVED 0x02 /* SP has been saved to slot already */
465 #define VLA_NEED_NEW_FRAME 0x04 /* Needs new frame for next VLA */
466 #define VLA_IN_SCOPE 0x08 /* One or more VLAs are in scope */
467 #define VLA_SCOPE_FLAGS (VLA_SP_SAVED|VLA_NEED_NEW_FRAME|VLA_IN_SCOPE) /* Flags which are saved and restored upon entering and exiting a block */
468
469 /* stored in 'Sym.c' field */
470 #define FUNC_NEW 1 /* ansi function prototype */
471 #define FUNC_OLD 2 /* old function prototype */
472 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
473
474 /* stored in 'Sym.r' field */
475 #define FUNC_CDECL 0 /* standard c call */
476 #define FUNC_STDCALL 1 /* pascal c call */
477 #define FUNC_FASTCALL1 2 /* first param in %eax */
478 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
479 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
480 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
481
482 /* field 'Sym.t' for macros */
483 #define MACRO_OBJ 0 /* object like macro */
484 #define MACRO_FUNC 1 /* function like macro */
485
486 /* field 'Sym.r' for C labels */
487 #define LABEL_DEFINED 0 /* label is defined */
488 #define LABEL_FORWARD 1 /* label is forward defined */
489 #define LABEL_DECLARED 2 /* label is declared but never used */
490
491 /* type_decl() types */
492 #define TYPE_ABSTRACT 1 /* type without variable */
493 #define TYPE_DIRECT 2 /* type with variable */
494
495 #define IO_BUF_SIZE 8192
496
497 typedef struct BufferedFile {
498 uint8_t *buf_ptr;
499 uint8_t *buf_end;
500 int fd;
501 struct BufferedFile *prev;
502 int line_num; /* current line number - here to simplify code */
503 int line_ref; /* moved from tcc_preprocess(), needed for a right ouput in other places */
504 int ifndef_macro; /* #ifndef macro / #endif search */
505 int ifndef_macro_saved; /* saved ifndef_macro */
506 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
507 char filename[1024]; /* filename */
508 unsigned char buffer[1]; /* extra size for CH_EOB char */
509 } BufferedFile;
510
511 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
512 #define CH_EOF (-1) /* end of file */
513
514 /* parsing state (used to save parser state to reparse part of the
515 source several times) */
516 typedef struct ParseState {
517 const int *macro_ptr;
518 int line_num;
519 int tok;
520 CValue tokc;
521 } ParseState;
522
523 /* used to record tokens */
524 typedef struct TokenString {
525 int *str;
526 int len;
527 int allocated_len;
528 int last_line_num;
529 } TokenString;
530
531 /* inline functions */
532 typedef struct InlineFunc {
533 int *token_str;
534 Sym *sym;
535 char filename[1];
536 } InlineFunc;
537
538 /* include file cache, used to find files faster and also to eliminate
539 inclusion if the include file is protected by #ifndef ... #endif */
540 typedef struct CachedInclude {
541 int ifndef_macro;
542 int hash_next; /* -1 if none */
543 char filename[1]; /* path specified in #include */
544 } CachedInclude;
545
546 #define CACHED_INCLUDES_HASH_SIZE 512
547
548 #ifdef CONFIG_TCC_ASM
549 typedef struct ExprValue {
550 uint32_t v;
551 Sym *sym;
552 } ExprValue;
553
554 #define MAX_ASM_OPERANDS 30
555 typedef struct ASMOperand {
556 int id; /* GCC 3 optionnal identifier (0 if number only supported */
557 char *constraint;
558 char asm_str[16]; /* computed asm string for operand */
559 SValue *vt; /* C value of the expression */
560 int ref_index; /* if >= 0, gives reference to a output constraint */
561 int input_index; /* if >= 0, gives reference to an input constraint */
562 int priority; /* priority, used to assign registers */
563 int reg; /* if >= 0, register number used for this operand */
564 int is_llong; /* true if double register value */
565 int is_memory; /* true if memory operand */
566 int is_rw; /* for '+' modifier */
567 } ASMOperand;
568 #endif
569
570 struct sym_attr {
571 unsigned long got_offset;
572 unsigned long plt_offset;
573 #ifdef TCC_TARGET_ARM
574 unsigned char plt_thumb_stub:1;
575 #endif
576 };
577
578 struct TCCState {
579
580 int verbose; /* if true, display some information during compilation */
581 int nostdinc; /* if true, no standard headers are added */
582 int nostdlib; /* if true, no standard libraries are added */
583 int nocommon; /* if true, do not use common symbols for .bss data */
584 int static_link; /* if true, static linking is performed */
585 int rdynamic; /* if true, all symbols are exported */
586 int symbolic; /* if true, resolve symbols in the current module first */
587 int alacarte_link; /* if true, only link in referenced objects from archive */
588
589 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
590 char *soname; /* as specified on the command line (-soname) */
591 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
592
593 /* output type, see TCC_OUTPUT_XXX */
594 int output_type;
595 /* output format, see TCC_OUTPUT_FORMAT_xxx */
596 int output_format;
597
598 /* C language options */
599 int char_is_unsigned;
600 int leading_underscore;
601
602 /* warning switches */
603 int warn_write_strings;
604 int warn_unsupported;
605 int warn_error;
606 int warn_none;
607 int warn_implicit_function_declaration;
608
609 /* compile with debug symbol (and use them if error during execution) */
610 int do_debug;
611 #ifdef CONFIG_TCC_BCHECK
612 /* compile with built-in memory and bounds checker */
613 int do_bounds_check;
614 #endif
615 #ifdef TCC_TARGET_ARM
616 enum float_abi float_abi; /* float ABI of the generated code*/
617 #endif
618
619 addr_t text_addr; /* address of text section */
620 int has_text_addr;
621
622 unsigned long section_align; /* section alignment */
623
624 char *init_symbol; /* symbols to call at load-time (not used currently) */
625 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
626
627 #ifdef TCC_TARGET_I386
628 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
629 #endif
630
631 /* array of all loaded dlls (including those referenced by loaded dlls) */
632 DLLReference **loaded_dlls;
633 int nb_loaded_dlls;
634
635 /* include paths */
636 char **include_paths;
637 int nb_include_paths;
638
639 char **sysinclude_paths;
640 int nb_sysinclude_paths;
641
642 /* library paths */
643 char **library_paths;
644 int nb_library_paths;
645
646 /* crt?.o object path */
647 char **crt_paths;
648 int nb_crt_paths;
649
650 /* error handling */
651 void *error_opaque;
652 void (*error_func)(void *opaque, const char *msg);
653 int error_set_jmp_enabled;
654 jmp_buf error_jmp_buf;
655 int nb_errors;
656
657 /* output file for preprocessing (-E) */
658 FILE *ppfp;
659 enum {
660 LINE_MACRO_OUTPUT_FORMAT_GCC,
661 LINE_MACRO_OUTPUT_FORMAT_NONE,
662 LINE_MACRO_OUTPUT_FORMAT_STD,
663 } Pflag;
664 int dflag; /* for keeping a -dD value */
665
666 /* for -MD/-MF: collected dependencies for this compilation */
667 char **target_deps;
668 int nb_target_deps;
669
670 /* compilation */
671 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
672 BufferedFile **include_stack_ptr;
673
674 int ifdef_stack[IFDEF_STACK_SIZE];
675 int *ifdef_stack_ptr;
676
677 /* included files enclosed with #ifndef MACRO */
678 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
679 CachedInclude **cached_includes;
680 int nb_cached_includes;
681
682 /* #pragma pack stack */
683 int pack_stack[PACK_STACK_SIZE];
684 int *pack_stack_ptr;
685
686 /* inline functions are stored as token lists and compiled last
687 only if referenced */
688 struct InlineFunc **inline_fns;
689 int nb_inline_fns;
690
691 /* sections */
692 Section **sections;
693 int nb_sections; /* number of sections, including first dummy section */
694
695 Section **priv_sections;
696 int nb_priv_sections; /* number of private sections */
697
698 /* got & plt handling */
699 Section *got;
700 Section *plt;
701 struct sym_attr *sym_attrs;
702 int nb_sym_attrs;
703 /* give the correspondance from symtab indexes to dynsym indexes */
704 int *symtab_to_dynsym;
705
706 /* temporary dynamic symbol sections (for dll loading) */
707 Section *dynsymtab_section;
708 /* exported dynamic symbol section */
709 Section *dynsym;
710 /* copy of the gobal symtab_section variable */
711 Section *symtab;
712 /* tiny assembler state */
713 Sym *asm_labels;
714
715 #ifdef TCC_TARGET_PE
716 /* PE info */
717 int pe_subsystem;
718 unsigned pe_file_align;
719 unsigned pe_stack_size;
720 # ifdef TCC_TARGET_X86_64
721 Section *uw_pdata;
722 int uw_sym;
723 unsigned uw_offs;
724 # endif
725 #endif
726
727 #ifdef TCC_IS_NATIVE
728 const char *runtime_main;
729 /* for tcc_relocate */
730 void *runtime_mem;
731 # ifdef HAVE_SELINUX
732 void *write_mem;
733 unsigned long mem_size;
734 # endif
735 #endif
736
737 /* used by main and tcc_parse_args only */
738 char **files; /* files seen on command line */
739 int nb_files; /* number thereof */
740 int nb_libraries; /* number of libs thereof */
741 char *outfile; /* output filename */
742 char *option_m; /* only -m32/-m64 handled */
743 int print_search_dirs; /* option */
744 int option_r; /* option -r */
745 int do_bench; /* option -bench */
746 int gen_deps; /* option -MD */
747 char *deps_outfile; /* option -MF */
748 };
749
750 /* The current value can be: */
751 #define VT_VALMASK 0x003f /* mask for value location, register or: */
752 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
753 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
754 #define VT_LOCAL 0x0032 /* offset on stack */
755 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
756 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
757 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
758 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
759 #define VT_LVAL 0x0100 /* var is an lvalue */
760 #define VT_SYM 0x0200 /* a symbol value is added */
761 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
762 char/short stored in integer registers) */
763 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
764 dereferencing value */
765 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
766 bounding function call point is in vc */
767 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
768 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
769 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
770 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
771
772 /* types */
773 #define VT_BTYPE 0x000f /* mask for basic type */
774 #define VT_INT 0 /* integer type */
775 #define VT_BYTE 1 /* signed byte type */
776 #define VT_SHORT 2 /* short type */
777 #define VT_VOID 3 /* void type */
778 #define VT_PTR 4 /* pointer */
779 #define VT_ENUM 5 /* enum definition */
780 #define VT_FUNC 6 /* function type */
781 #define VT_STRUCT 7 /* struct/union definition */
782 #define VT_FLOAT 8 /* IEEE float */
783 #define VT_DOUBLE 9 /* IEEE double */
784 #define VT_LDOUBLE 10 /* IEEE long double */
785 #define VT_BOOL 11 /* ISOC99 boolean type */
786 #define VT_LLONG 12 /* 64 bit integer */
787 #define VT_LONG 13 /* long integer (NEVER USED as type, only
788 during parsing) */
789 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
790 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
791 #define VT_UNSIGNED 0x0010 /* unsigned type */
792 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
793 #define VT_BITFIELD 0x0040 /* bitfield modifier */
794 #define VT_CONSTANT 0x0800 /* const modifier */
795 #define VT_VOLATILE 0x1000 /* volatile modifier */
796 #define VT_DEFSIGN 0x2000 /* signed type */
797 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
798
799 /* storage */
800 #define VT_EXTERN 0x00000080 /* extern definition */
801 #define VT_STATIC 0x00000100 /* static variable */
802 #define VT_TYPEDEF 0x00000200 /* typedef definition */
803 #define VT_INLINE 0x00000400 /* inline definition */
804 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
805 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
806 #define VT_WEAK 0x00010000 /* weak symbol */
807 #define VT_TLS 0x00040000 /* thread-local storage */
808 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
809 bitfield values, because bitfields never
810 have linkage and hence never have
811 visibility. */
812 #define VT_VIS_SIZE 2 /* We have four visibilities. */
813 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
814
815 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
816
817
818 /* type mask (except storage) */
819 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
820 #define VT_TYPE (~(VT_STORAGE))
821
822 /* token values */
823
824 /* warning: the following compare tokens depend on i386 asm code */
825 #define TOK_ULT 0x92
826 #define TOK_UGE 0x93
827 #define TOK_EQ 0x94
828 #define TOK_NE 0x95
829 #define TOK_ULE 0x96
830 #define TOK_UGT 0x97
831 #define TOK_Nset 0x98
832 #define TOK_Nclear 0x99
833 #define TOK_LT 0x9c
834 #define TOK_GE 0x9d
835 #define TOK_LE 0x9e
836 #define TOK_GT 0x9f
837
838 #define TOK_LAND 0xa0
839 #define TOK_LOR 0xa1
840 #define TOK_DEC 0xa2
841 #define TOK_MID 0xa3 /* inc/dec, to void constant */
842 #define TOK_INC 0xa4
843 #define TOK_UDIV 0xb0 /* unsigned division */
844 #define TOK_UMOD 0xb1 /* unsigned modulo */
845 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
846
847 /* tokens that carry values (in additional token string space / tokc) --> */
848 #define TOK_CCHAR 0xb3 /* char constant in tokc */
849 #define TOK_LCHAR 0xb4
850 #define TOK_CINT 0xb5 /* number in tokc */
851 #define TOK_CUINT 0xb6 /* unsigned int constant */
852 #define TOK_CLLONG 0xb7 /* long long constant */
853 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
854 #define TOK_STR 0xb9 /* pointer to string in tokc */
855 #define TOK_LSTR 0xba
856 #define TOK_CFLOAT 0xbb /* float constant */
857 #define TOK_CDOUBLE 0xbc /* double constant */
858 #define TOK_CLDOUBLE 0xbd /* long double constant */
859 #define TOK_PPNUM 0xbe /* preprocessor number */
860 #define TOK_LINENUM 0xbf /* line number info */
861 /* <-- */
862
863 #define TOK_TWOSHARPS 0xc0 /* ## preprocessing token */
864 #define TOK_PLCHLDR 0xc1 /* placeholder token as defined in C99 */
865 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
866 #define TOK_ADDC1 0xc3 /* add with carry generation */
867 #define TOK_ADDC2 0xc4 /* add with carry use */
868 #define TOK_SUBC1 0xc5 /* add with carry generation */
869 #define TOK_SUBC2 0xc6 /* add with carry use */
870 #define TOK_ARROW 0xcb
871 #define TOK_DOTS 0xcc /* three dots */
872 #define TOK_SHR 0xcd /* unsigned shift right */
873 #define TOK_NOSUBST 0xcf /* means following token has already been pp'd */
874
875 #define TOK_SHL 0x01 /* shift left */
876 #define TOK_SAR 0x02 /* signed shift right */
877
878 /* assignement operators : normal operator or 0x80 */
879 #define TOK_A_MOD 0xa5
880 #define TOK_A_AND 0xa6
881 #define TOK_A_MUL 0xaa
882 #define TOK_A_ADD 0xab
883 #define TOK_A_SUB 0xad
884 #define TOK_A_DIV 0xaf
885 #define TOK_A_XOR 0xde
886 #define TOK_A_OR 0xfc
887 #define TOK_A_SHL 0x81
888 #define TOK_A_SAR 0x82
889
890 #ifndef offsetof
891 #define offsetof(type, field) ((size_t) &((type *)0)->field)
892 #endif
893
894 #ifndef countof
895 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
896 #endif
897
898 #define TOK_EOF (-1) /* end of file */
899 #define TOK_LINEFEED 10 /* line feed */
900
901 /* all identificators and strings have token above that */
902 #define TOK_IDENT 256
903
904 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
905 #define TOK_ASM_int TOK_INT
906 #define TOK_ASM_weak TOK_WEAK1
907
908 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
909 /* only used for i386 asm opcodes definitions */
910 #define DEF_BWL(x) \
911 DEF(TOK_ASM_ ## x ## b, #x "b") \
912 DEF(TOK_ASM_ ## x ## w, #x "w") \
913 DEF(TOK_ASM_ ## x ## l, #x "l") \
914 DEF(TOK_ASM_ ## x, #x)
915 #define DEF_WL(x) \
916 DEF(TOK_ASM_ ## x ## w, #x "w") \
917 DEF(TOK_ASM_ ## x ## l, #x "l") \
918 DEF(TOK_ASM_ ## x, #x)
919 #ifdef TCC_TARGET_X86_64
920 # define DEF_BWLQ(x) \
921 DEF(TOK_ASM_ ## x ## b, #x "b") \
922 DEF(TOK_ASM_ ## x ## w, #x "w") \
923 DEF(TOK_ASM_ ## x ## l, #x "l") \
924 DEF(TOK_ASM_ ## x ## q, #x "q") \
925 DEF(TOK_ASM_ ## x, #x)
926 # define DEF_WLQ(x) \
927 DEF(TOK_ASM_ ## x ## w, #x "w") \
928 DEF(TOK_ASM_ ## x ## l, #x "l") \
929 DEF(TOK_ASM_ ## x ## q, #x "q") \
930 DEF(TOK_ASM_ ## x, #x)
931 # define DEF_BWLX DEF_BWLQ
932 # define DEF_WLX DEF_WLQ
933 /* number of sizes + 1 */
934 # define NBWLX 5
935 #else
936 # define DEF_BWLX DEF_BWL
937 # define DEF_WLX DEF_WL
938 /* number of sizes + 1 */
939 # define NBWLX 4
940 #endif
941
942 #define DEF_FP1(x) \
943 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
944 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
945 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
946 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
947
948 #define DEF_FP(x) \
949 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
950 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
951 DEF_FP1(x)
952
953 #define DEF_ASMTEST(x,suffix) \
954 DEF_ASM(x ## o ## suffix) \
955 DEF_ASM(x ## no ## suffix) \
956 DEF_ASM(x ## b ## suffix) \
957 DEF_ASM(x ## c ## suffix) \
958 DEF_ASM(x ## nae ## suffix) \
959 DEF_ASM(x ## nb ## suffix) \
960 DEF_ASM(x ## nc ## suffix) \
961 DEF_ASM(x ## ae ## suffix) \
962 DEF_ASM(x ## e ## suffix) \
963 DEF_ASM(x ## z ## suffix) \
964 DEF_ASM(x ## ne ## suffix) \
965 DEF_ASM(x ## nz ## suffix) \
966 DEF_ASM(x ## be ## suffix) \
967 DEF_ASM(x ## na ## suffix) \
968 DEF_ASM(x ## nbe ## suffix) \
969 DEF_ASM(x ## a ## suffix) \
970 DEF_ASM(x ## s ## suffix) \
971 DEF_ASM(x ## ns ## suffix) \
972 DEF_ASM(x ## p ## suffix) \
973 DEF_ASM(x ## pe ## suffix) \
974 DEF_ASM(x ## np ## suffix) \
975 DEF_ASM(x ## po ## suffix) \
976 DEF_ASM(x ## l ## suffix) \
977 DEF_ASM(x ## nge ## suffix) \
978 DEF_ASM(x ## nl ## suffix) \
979 DEF_ASM(x ## ge ## suffix) \
980 DEF_ASM(x ## le ## suffix) \
981 DEF_ASM(x ## ng ## suffix) \
982 DEF_ASM(x ## nle ## suffix) \
983 DEF_ASM(x ## g ## suffix)
984
985 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
986
987 enum tcc_token {
988 TOK_LAST = TOK_IDENT - 1,
989 #define DEF(id, str) id,
990 #include "tcctok.h"
991 #undef DEF
992 };
993
994 #define TOK_UIDENT TOK_DEFINE
995
996 /* space exlcuding newline */
997 static inline int is_space(int ch)
998 {
999 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1000 }
1001
1002 static inline int isid(int c)
1003 {
1004 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1005 }
1006
1007 static inline int isnum(int c)
1008 {
1009 return c >= '0' && c <= '9';
1010 }
1011
1012 static inline int isoct(int c)
1013 {
1014 return c >= '0' && c <= '7';
1015 }
1016
1017 static inline int toup(int c)
1018 {
1019 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1020 }
1021
1022 #ifndef PUB_FUNC
1023 # define PUB_FUNC
1024 #endif
1025
1026 #ifdef ONE_SOURCE
1027 #define ST_INLN static inline
1028 #define ST_FUNC static
1029 #define ST_DATA static
1030 #else
1031 #define ST_INLN
1032 #define ST_FUNC
1033 #define ST_DATA extern
1034 #endif
1035
1036 /* ------------ libtcc.c ------------ */
1037
1038 /* use GNU C extensions */
1039 ST_DATA int gnu_ext;
1040 /* use Tiny C extensions */
1041 ST_DATA int tcc_ext;
1042 /* XXX: get rid of this ASAP */
1043 ST_DATA struct TCCState *tcc_state;
1044
1045 #ifdef MEM_DEBUG
1046 ST_DATA int mem_cur_size;
1047 ST_DATA int mem_max_size;
1048 #endif
1049
1050 #define AFF_PRINT_ERROR 0x0001 /* print error if file not found */
1051 #define AFF_REFERENCED_DLL 0x0002 /* load a referenced dll from another dll */
1052 #define AFF_PREPROCESS 0x0004 /* preprocess file */
1053
1054 /* public functions currently used by the tcc main function */
1055 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1056 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1057 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1058 PUB_FUNC char *tcc_basename(const char *name);
1059 PUB_FUNC char *tcc_fileextension (const char *name);
1060 PUB_FUNC void tcc_free(void *ptr);
1061 PUB_FUNC void *tcc_malloc(unsigned long size);
1062 PUB_FUNC void *tcc_mallocz(unsigned long size);
1063 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1064 PUB_FUNC char *tcc_strdup(const char *str);
1065 #define free(p) use_tcc_free(p)
1066 #define malloc(s) use_tcc_malloc(s)
1067 #define realloc(p, s) use_tcc_realloc(p, s)
1068 #undef strdup
1069 #define strdup(s) use_tcc_strdup(s)
1070 PUB_FUNC void tcc_memstats(void);
1071 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1072 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1073 PUB_FUNC void tcc_warning(const char *fmt, ...);
1074
1075 /* other utilities */
1076 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1077 ST_FUNC void dynarray_reset(void *pp, int *n);
1078 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1079 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1080 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1081 ST_FUNC void cstr_new(CString *cstr);
1082 ST_FUNC void cstr_free(CString *cstr);
1083 ST_FUNC void cstr_reset(CString *cstr);
1084
1085 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1086 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1087 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1088 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1089 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1090
1091 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1092 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1093 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1094 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, unsigned long addend);
1095
1096 ST_INLN void sym_free(Sym *sym);
1097 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1098 ST_FUNC Sym *sym_find2(Sym *s, int v);
1099 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1100 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1101 ST_INLN Sym *struct_find(int v);
1102 ST_INLN Sym *sym_find(int v);
1103 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1104
1105 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1106 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1107 ST_FUNC void tcc_close(void);
1108
1109 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1110 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1111 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1112
1113 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1114 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1115
1116 PUB_FUNC void tcc_set_environment(TCCState *s);
1117
1118 /* ------------ tccpp.c ------------ */
1119
1120 ST_DATA struct BufferedFile *file;
1121 ST_DATA int ch, tok;
1122 ST_DATA CValue tokc;
1123 ST_DATA const int *macro_ptr;
1124 ST_DATA int parse_flags;
1125 ST_DATA int tok_flags;
1126 ST_DATA CString tokcstr; /* current parsed string, if any */
1127
1128 /* display benchmark infos */
1129 ST_DATA int total_lines;
1130 ST_DATA int total_bytes;
1131 ST_DATA int tok_ident;
1132 ST_DATA TokenSym **table_ident;
1133
1134 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1135 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1136 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1137 #define TOK_FLAG_EOF 0x0008 /* end of file */
1138
1139 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1140 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1141 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1142 token. line feed is also
1143 returned at eof */
1144 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1145 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1146
1147 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1148 ST_FUNC char *get_tok_str(int v, CValue *cv);
1149 ST_FUNC void save_parse_state(ParseState *s);
1150 ST_FUNC void restore_parse_state(ParseState *s);
1151 ST_INLN void tok_str_new(TokenString *s);
1152 ST_FUNC void tok_str_free(int *str);
1153 ST_FUNC void tok_str_add(TokenString *s, int t);
1154 ST_FUNC void tok_str_add_tok(TokenString *s);
1155 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1156 ST_FUNC void define_undef(Sym *s);
1157 ST_INLN Sym *define_find(int v);
1158 ST_FUNC void free_defines(Sym *b);
1159 void print_defines(void);
1160 ST_FUNC Sym *label_find(int v);
1161 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1162 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1163 ST_FUNC void parse_define(void);
1164 ST_FUNC void preprocess(int is_bof);
1165 ST_FUNC void next_nomacro(void);
1166 ST_FUNC void next(void);
1167 ST_INLN void unget_tok(int last_tok);
1168 ST_FUNC void preprocess_init(TCCState *s1);
1169 ST_FUNC void preprocess_new(void);
1170 ST_FUNC int tcc_preprocess(TCCState *s1);
1171 ST_FUNC void skip(int c);
1172 ST_FUNC NORETURN void expect(const char *msg);
1173
1174 /* ------------ tccgen.c ------------ */
1175
1176 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1177 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1178 #ifdef CONFIG_TCC_ASM
1179 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1180 #endif
1181 #ifdef CONFIG_TCC_BCHECK
1182 /* bound check related sections */
1183 ST_DATA Section *bounds_section; /* contains global data bound description */
1184 ST_DATA Section *lbounds_section; /* contains local data bound description */
1185 #endif
1186 /* symbol sections */
1187 ST_DATA Section *symtab_section, *strtab_section;
1188 /* debug sections */
1189 ST_DATA Section *stab_section, *stabstr_section;
1190
1191 #define SYM_POOL_NB (8192 / sizeof(Sym))
1192 ST_DATA Sym *sym_free_first;
1193 ST_DATA void **sym_pools;
1194 ST_DATA int nb_sym_pools;
1195
1196 ST_DATA Sym *global_stack;
1197 ST_DATA Sym *local_stack;
1198 ST_DATA Sym *local_label_stack;
1199 ST_DATA Sym *global_label_stack;
1200 ST_DATA Sym *define_stack;
1201 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1202 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
1203 #define vstack (__vstack + 1)
1204 ST_DATA int rsym, anon_sym, ind, loc;
1205
1206 ST_DATA int const_wanted; /* true if constant wanted */
1207 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1208 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1209 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1210 ST_DATA int func_var; /* true if current function is variadic */
1211 ST_DATA int func_vc;
1212 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1213 ST_DATA char *funcname;
1214
1215 ST_INLN int is_float(int t);
1216 ST_FUNC int ieee_finite(double d);
1217 ST_FUNC void test_lvalue(void);
1218 ST_FUNC void swap(int *p, int *q);
1219 ST_FUNC void vpushi(int v);
1220 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1221 ST_FUNC void vset(CType *type, int r, int v);
1222 ST_FUNC void vswap(void);
1223 ST_FUNC void vpush_global_sym(CType *type, int v);
1224 ST_FUNC void vrote(SValue *e, int n);
1225 ST_FUNC void vrott(int n);
1226 ST_FUNC void vrotb(int n);
1227 #ifdef TCC_TARGET_ARM
1228 ST_FUNC int get_reg_ex(int rc, int rc2);
1229 ST_FUNC void lexpand_nr(void);
1230 #endif
1231 ST_FUNC void vpushv(SValue *v);
1232 ST_FUNC void save_reg(int r);
1233 ST_FUNC int get_reg(int rc);
1234 ST_FUNC void save_regs(int n);
1235 ST_FUNC void gaddrof(void);
1236 ST_FUNC int gv(int rc);
1237 ST_FUNC void gv2(int rc1, int rc2);
1238 ST_FUNC void vpop(void);
1239 ST_FUNC void gen_op(int op);
1240 ST_FUNC int type_size(CType *type, int *a);
1241 ST_FUNC void mk_pointer(CType *type);
1242 ST_FUNC void vstore(void);
1243 ST_FUNC void inc(int post, int c);
1244 ST_FUNC void parse_asm_str(CString *astr);
1245 ST_FUNC int lvalue_type(int t);
1246 ST_FUNC void indir(void);
1247 ST_FUNC void unary(void);
1248 ST_FUNC void expr_prod(void);
1249 ST_FUNC void expr_sum(void);
1250 ST_FUNC void gexpr(void);
1251 ST_FUNC int expr_const(void);
1252 ST_FUNC void gen_inline_functions(void);
1253 ST_FUNC void decl(int l);
1254 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1255 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1256 #endif
1257 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1258 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1259 #endif
1260
1261 /* ------------ tccelf.c ------------ */
1262
1263 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1264 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1265 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1266
1267 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1268
1269 typedef struct {
1270 unsigned int n_strx; /* index into string table of name */
1271 unsigned char n_type; /* type of symbol */
1272 unsigned char n_other; /* misc info (usually empty) */
1273 unsigned short n_desc; /* description field */
1274 unsigned int n_value; /* value of symbol */
1275 } Stab_Sym;
1276
1277 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);
1278
1279 ST_FUNC int put_elf_str(Section *s, const char *sym);
1280 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1281 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1282 ST_FUNC int find_elf_sym(Section *s, const char *name);
1283 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1284 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, unsigned long addend);
1285
1286 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1287 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1288 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1289 ST_FUNC void put_stabd(int type, int other, int desc);
1290
1291 ST_FUNC void relocate_common_syms(void);
1292 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1293 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1294 ST_FUNC void relocate_plt(TCCState *s1);
1295
1296 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1297 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1298 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1299 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1300
1301 ST_FUNC void build_got_entries(TCCState *s1);
1302 ST_FUNC void tcc_add_runtime(TCCState *s1);
1303
1304 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1305 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1306 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1307 #endif
1308
1309 #ifndef TCC_TARGET_PE
1310 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1311 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1312 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1313 ST_FUNC void minp(void);
1314 ST_INLN void inp(void);
1315 ST_FUNC int handle_eob(void);
1316 #endif
1317
1318 /* ------------ xxx-gen.c ------------ */
1319
1320 ST_DATA const int reg_classes[NB_REGS];
1321
1322 ST_FUNC void gsym_addr(int t, int a);
1323 ST_FUNC void gsym(int t);
1324 ST_FUNC void load(int r, SValue *sv);
1325 ST_FUNC void store(int r, SValue *v);
1326 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align);
1327 ST_FUNC void gfunc_call(int nb_args);
1328 ST_FUNC void gfunc_prolog(CType *func_type);
1329 ST_FUNC void gfunc_epilog(void);
1330 ST_FUNC int gjmp(int t);
1331 ST_FUNC void gjmp_addr(int a);
1332 ST_FUNC int gtst(int inv, int t);
1333 ST_FUNC void gen_opi(int op);
1334 ST_FUNC void gen_opf(int op);
1335 ST_FUNC void gen_cvt_ftoi(int t);
1336 ST_FUNC void gen_cvt_ftof(int t);
1337 ST_FUNC void ggoto(void);
1338 #ifndef TCC_TARGET_C67
1339 ST_FUNC void o(unsigned int c);
1340 #endif
1341 #ifndef TCC_TARGET_ARM
1342 ST_FUNC void gen_cvt_itof(int t);
1343 #endif
1344 ST_FUNC void gen_vla_sp_save(int addr);
1345 ST_FUNC void gen_vla_sp_restore(int addr);
1346 ST_FUNC void gen_vla_alloc(CType *type, int align);
1347
1348 /* ------------ i386-gen.c ------------ */
1349 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1350 ST_FUNC void g(int c);
1351 ST_FUNC int oad(int c, int s);
1352 ST_FUNC void gen_le16(int c);
1353 ST_FUNC void gen_le32(int c);
1354 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1355 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1356 #endif
1357
1358 #ifdef CONFIG_TCC_BCHECK
1359 ST_FUNC void gen_bounded_ptr_add(void);
1360 ST_FUNC void gen_bounded_ptr_deref(void);
1361 #endif
1362
1363 /* ------------ x86_64-gen.c ------------ */
1364 #ifdef TCC_TARGET_X86_64
1365 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1366 ST_FUNC void gen_opl(int op);
1367 #endif
1368
1369 /* ------------ arm-gen.c ------------ */
1370 #ifdef TCC_TARGET_ARM
1371 #ifdef TCC_ARM_EABI
1372 ST_FUNC char *default_elfinterp(struct TCCState *s);
1373 #endif
1374 ST_FUNC void arm_init(struct TCCState *s);
1375 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1376 ST_FUNC void gen_cvt_itof1(int t);
1377 #endif
1378
1379 /* ------------ arm64-gen.c ------------ */
1380 #ifdef TCC_TARGET_ARM64
1381 ST_FUNC void gen_cvt_sxtw(void);
1382 ST_FUNC void gen_opl(int op);
1383 ST_FUNC void greturn(void);
1384 ST_FUNC void gen_va_start(void);
1385 ST_FUNC void gen_va_arg(CType *t);
1386 #endif
1387
1388 /* ------------ c67-gen.c ------------ */
1389 #ifdef TCC_TARGET_C67
1390 #endif
1391
1392 /* ------------ tcccoff.c ------------ */
1393
1394 #ifdef TCC_TARGET_COFF
1395 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1396 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1397 #endif
1398
1399 /* ------------ tccasm.c ------------ */
1400 ST_FUNC void asm_instr(void);
1401 ST_FUNC void asm_global_instr(void);
1402 #ifdef CONFIG_TCC_ASM
1403 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1404 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1405 ST_FUNC int asm_int_expr(TCCState *s1);
1406 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1407 /* ------------ i386-asm.c ------------ */
1408 ST_FUNC void gen_expr32(ExprValue *pe);
1409 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1410 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1411 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1412 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1413 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1414 #endif
1415
1416 /* ------------ tccpe.c -------------- */
1417 #ifdef TCC_TARGET_PE
1418 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1419 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1420 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1421 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1422 #ifdef TCC_TARGET_X86_64
1423 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1424 #endif
1425 /* symbol properties stored in Elf32_Sym->st_other */
1426 # define ST_PE_EXPORT 0x10
1427 # define ST_PE_IMPORT 0x20
1428 # define ST_PE_STDCALL 0x40
1429 #endif
1430
1431 /* ------------ tccrun.c ----------------- */
1432 #ifdef TCC_IS_NATIVE
1433 #ifdef CONFIG_TCC_STATIC
1434 #define RTLD_LAZY 0x001
1435 #define RTLD_NOW 0x002
1436 #define RTLD_GLOBAL 0x100
1437 #define RTLD_DEFAULT NULL
1438 /* dummy function for profiling */
1439 ST_FUNC void *dlopen(const char *filename, int flag);
1440 ST_FUNC void dlclose(void *p);
1441 ST_FUNC const char *dlerror(void);
1442 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1443 #elif !defined _WIN32
1444 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1445 #endif
1446
1447 #ifdef CONFIG_TCC_BACKTRACE
1448 ST_DATA int rt_num_callers;
1449 ST_DATA const char **rt_bound_error_msg;
1450 ST_DATA void *rt_prog_main;
1451 ST_FUNC void tcc_set_num_callers(int n);
1452 #endif
1453 #endif
1454
1455 /********************************************************/
1456 #undef ST_DATA
1457 #ifdef ONE_SOURCE
1458 #define ST_DATA static
1459 #else
1460 #define ST_DATA
1461 #endif
1462 /********************************************************/
1463 #endif /* _TCC_H */
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