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restore 2dd8587c2f32d17a2cd0443a60a614a3fa9bbe29
[tinycc.git] / tcc.h
blobc49eac425c97efc06e226d19172574fd96798113
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 #ifdef 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_C67 *//* TMS320C67xx code generator */
155 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
156
157 /* default target is I386 */
158 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
159 !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
160 #define TCC_TARGET_I386
161 #endif
162
163 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
164 !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64) && \
165 !defined(CONFIG_USE_LIBGCC)
166 #define CONFIG_TCC_BCHECK /* enable bound checking code */
167 #endif
168
169 /* define it to include assembler support */
170 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
171 #define CONFIG_TCC_ASM
172 #endif
173
174 /* object format selection */
175 #if defined(TCC_TARGET_C67)
176 #define TCC_TARGET_COFF
177 #endif
178
179 /* only native compiler supports -run */
180 #if defined _WIN32 == defined TCC_TARGET_PE
181 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
182 # define TCC_IS_NATIVE
183 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
184 # define TCC_IS_NATIVE
185 # elif defined __arm__ && defined TCC_TARGET_ARM
186 # define TCC_IS_NATIVE
187 # endif
188 #endif
189
190 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
191 # define CONFIG_TCC_BACKTRACE
192 #endif
193
194 /* ------------ path configuration ------------ */
195
196 #ifndef CONFIG_SYSROOT
197 # define CONFIG_SYSROOT ""
198 #endif
199 #ifndef CONFIG_TCCDIR
200 # define CONFIG_TCCDIR "."
201 #endif
202 #ifndef CONFIG_LDDIR
203 # define CONFIG_LDDIR "lib"
204 #endif
205
206 #ifdef CONFIG_MULTIARCHDIR
207 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
208 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
209 #else
210 # define USE_MUADIR(s) s
211 # define ALSO_MUADIR(s) s
212 #endif
213
214 /* path to find crt1.o, crti.o and crtn.o */
215 #ifndef CONFIG_TCC_CRTPREFIX
216 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
217 #endif
218
219 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
220
221 /* system include paths */
222 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
223 # ifdef TCC_TARGET_PE
224 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
225 # else
226 # define CONFIG_TCC_SYSINCLUDEPATHS \
227 ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
228 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") \
229 ":" "{B}/include"
230 # endif
231 #endif
232
233 /* library search paths */
234 #ifndef CONFIG_TCC_LIBPATHS
235 # ifdef TCC_TARGET_PE
236 # define CONFIG_TCC_LIBPATHS "{B}/lib"
237 # else
238 # define CONFIG_TCC_LIBPATHS \
239 ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
240 ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
241 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
242 # endif
243 #endif
244
245 /* name of ELF interpreter */
246 #ifndef CONFIG_TCC_ELFINTERP
247 # if defined __FreeBSD__
248 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
249 # elif defined __FreeBSD_kernel__
250 # if defined(TCC_TARGET_X86_64)
251 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
252 # else
253 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
254 # endif
255 # elif defined __DragonFly__
256 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
257 # elif defined __GNU__
258 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
259 # elif defined(TCC_TARGET_X86_64)
260 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
261 # elif defined(TCC_UCLIBC)
262 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0"
263 # elif defined(TCC_TARGET_PE)
264 # define CONFIG_TCC_ELFINTERP "-"
265 # elif !defined(TCC_ARM_EABI)
266 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
267 # endif
268 #endif
269
270 /* var elf_interp dans *-gen.c */
271 #ifdef CONFIG_TCC_ELFINTERP
272 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
273 #else
274 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
275 #endif
276
277 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
278 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
279
280 /* -------------------------------------------- */
281 /* include the target specific definitions */
282
283 #define TARGET_DEFS_ONLY
284 #ifdef TCC_TARGET_I386
285 # include "i386-gen.c"
286 #endif
287 #ifdef TCC_TARGET_X86_64
288 # include "x86_64-gen.c"
289 #endif
290 #ifdef TCC_TARGET_ARM
291 # include "arm-gen.c"
292 #endif
293 #ifdef TCC_TARGET_C67
294 # include "coff.h"
295 # include "c67-gen.c"
296 #endif
297 #undef TARGET_DEFS_ONLY
298
299 /* -------------------------------------------- */
300
301 #define INCLUDE_STACK_SIZE 32
302 #define IFDEF_STACK_SIZE 64
303 #define VSTACK_SIZE 256
304 #define STRING_MAX_SIZE 1024
305 #define PACK_STACK_SIZE 8
306 #define MACRO_STACK_SIZE 4
307
308 #define TOK_HASH_SIZE 8192 /* must be a power of two */
309 #define TOK_ALLOC_INCR 512 /* must be a power of two */
310 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
311
312 typedef struct CSym {
313 int off;
314 int size;/* size in *sym */
315 struct Sym **data; /* if non NULL, data has been malloced */
316 } CSym;
317
318 /* token symbol management */
319 typedef struct TokenSym {
320 struct TokenSym *hash_next;
321 struct CSym sym_define; /* direct pointer to define */
322 struct Sym *sym_label; /* direct pointer to label */
323 struct Sym *sym_struct; /* direct pointer to structure */
324 struct Sym *sym_identifier; /* direct pointer to identifier */
325 int tok; /* token number */
326 int len;
327 char str[1];
328 } TokenSym;
329
330 #ifdef TCC_TARGET_PE
331 typedef unsigned short nwchar_t;
332 #else
333 typedef int nwchar_t;
334 #endif
335
336 typedef struct CString {
337 int size; /* size in bytes */
338 void *data; /* either 'char *' or 'nwchar_t *' */
339 int size_allocated;
340 void *data_allocated; /* if non NULL, data has been malloced */
341 } CString;
342
343 /* type definition */
344 typedef struct CType {
345 int t;
346 struct Sym *ref;
347 } CType;
348
349 /* constant value */
350 typedef union CValue {
351 long double ld;
352 double d;
353 float f;
354 int i;
355 unsigned int ui;
356 unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
357 long long ll;
358 unsigned long long ull;
359 struct CString *cstr;
360 addr_t ptr_offset;
361 int tab[LDOUBLE_SIZE/4];
362 } CValue;
363
364 /* value on stack */
365 typedef struct SValue {
366 CType type; /* type */
367 unsigned short r; /* register + flags */
368 unsigned short r2; /* second register, used for 'long long'
369 type. If not used, set to VT_CONST */
370 CValue c; /* constant, if VT_CONST */
371 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */
372 } SValue;
373
374 struct Attribute {
375 unsigned
376 func_call : 3, /* calling convention (0..5), see below */
377 aligned : 5, /* alignement (0..16) */
378 packed : 1,
379 func_export : 1,
380 func_import : 1,
381 func_args : 5,
382 func_proto : 1,
383 mode : 4,
384 weak : 1,
385 visibility : 2,
386 fill : 8; // 8 bits left to fit well in union below
387 };
388
389 /* GNUC attribute definition */
390 typedef struct AttributeDef {
391 struct Attribute a;
392 struct Section *section;
393 int alias_target; /* token */
394 } AttributeDef;
395
396 /* symbol management */
397 typedef struct Sym {
398 int v; /* symbol token */
399 char *asm_label; /* associated asm label */
400 union {
401 long r; /* associated register */
402 struct Attribute a;
403 };
404 union {
405 long c; /* associated number */
406 int *d; /* define token stream */
407 };
408 CType type; /* associated type */
409 union {
410 struct Sym *next; /* next related symbol */
411 long jnext; /* next jump label */
412 };
413 struct Sym *prev; /* prev symbol in stack */
414 struct Sym *prev_tok; /* previous symbol for this token */
415 } Sym;
416
417 /* section definition */
418 /* XXX: use directly ELF structure for parameters ? */
419 /* special flag to indicate that the section should not be linked to
420 the other ones */
421 #define SHF_PRIVATE 0x80000000
422
423 /* special flag, too */
424 #define SECTION_ABS ((void *)1)
425
426 typedef struct Section {
427 unsigned long data_offset; /* current data offset */
428 unsigned char *data; /* section data */
429 unsigned long data_allocated; /* used for realloc() handling */
430 int sh_name; /* elf section name (only used during output) */
431 int sh_num; /* elf section number */
432 int sh_type; /* elf section type */
433 int sh_flags; /* elf section flags */
434 int sh_info; /* elf section info */
435 int sh_addralign; /* elf section alignment */
436 int sh_entsize; /* elf entry size */
437 unsigned long sh_size; /* section size (only used during output) */
438 addr_t sh_addr; /* address at which the section is relocated */
439 unsigned long sh_offset; /* file offset */
440 int nb_hashed_syms; /* used to resize the hash table */
441 struct Section *link; /* link to another section */
442 struct Section *reloc; /* corresponding section for relocation, if any */
443 struct Section *hash; /* hash table for symbols */
444 struct Section *next;
445 char name[1]; /* section name */
446 } Section;
447
448 typedef struct DLLReference {
449 int level;
450 void *handle;
451 char name[1];
452 } DLLReference;
453
454 /* -------------------------------------------------- */
455
456 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
457 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
458 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
459
460 #define VLA_SP_LOC_SET 0x01 /* Location of SP on stack has been allocated */
461 #define VLA_SP_SAVED 0x02 /* SP has been saved to slot already */
462 #define VLA_NEED_NEW_FRAME 0x04 /* Needs new frame for next VLA */
463 #define VLA_IN_SCOPE 0x08 /* One or more VLAs are in scope */
464 #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 */
465
466 /* stored in 'Sym.c' field */
467 #define FUNC_NEW 1 /* ansi function prototype */
468 #define FUNC_OLD 2 /* old function prototype */
469 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
470
471 /* stored in 'Sym.r' field */
472 #define FUNC_CDECL 0 /* standard c call */
473 #define FUNC_STDCALL 1 /* pascal c call */
474 #define FUNC_FASTCALL1 2 /* first param in %eax */
475 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
476 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
477 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
478
479 /* field 'Sym.t' for macros */
480 #define MACRO_OBJ 0 /* object like macro */
481 #define MACRO_FUNC 1 /* function like macro */
482
483 /* field 'Sym.r' for C labels */
484 #define LABEL_DEFINED 0 /* label is defined */
485 #define LABEL_FORWARD 1 /* label is forward defined */
486 #define LABEL_DECLARED 2 /* label is declared but never used */
487
488 /* type_decl() types */
489 #define TYPE_ABSTRACT 1 /* type without variable */
490 #define TYPE_DIRECT 2 /* type with variable */
491
492 #define IO_BUF_SIZE 8192
493
494 typedef struct BufferedFile {
495 uint8_t *buf_ptr;
496 uint8_t *buf_end;
497 int fd;
498 struct BufferedFile *prev;
499 int line_num; /* current line number - here to simplify code */
500 int ifndef_macro; /* #ifndef macro / #endif search */
501 int ifndef_macro_saved; /* saved ifndef_macro */
502 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
503 char filename[1024]; /* filename */
504 unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
505 } BufferedFile;
506
507 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
508 #define CH_EOF (-1) /* end of file */
509
510 /* parsing state (used to save parser state to reparse part of the
511 source several times) */
512 typedef struct ParseState {
513 const int *macro_ptr;
514 int line_num;
515 int tok;
516 CValue tokc;
517 } ParseState;
518
519 /* used to record tokens */
520 typedef struct TokenString {
521 int *str;
522 int len;
523 int allocated_len;
524 int last_line_num;
525 } TokenString;
526
527 /* inline functions */
528 typedef struct InlineFunc {
529 int *token_str;
530 Sym *sym;
531 char filename[1];
532 } InlineFunc;
533
534 /* include file cache, used to find files faster and also to eliminate
535 inclusion if the include file is protected by #ifndef ... #endif */
536 typedef struct CachedInclude {
537 int ifndef_macro;
538 int hash_next; /* -1 if none */
539 char filename[1]; /* path specified in #include */
540 } CachedInclude;
541
542 #define CACHED_INCLUDES_HASH_SIZE 512
543
544 #ifdef CONFIG_TCC_ASM
545 typedef struct ExprValue {
546 uint32_t v;
547 Sym *sym;
548 } ExprValue;
549
550 #define MAX_ASM_OPERANDS 30
551 typedef struct ASMOperand {
552 int id; /* GCC 3 optionnal identifier (0 if number only supported */
553 char *constraint;
554 char asm_str[16]; /* computed asm string for operand */
555 SValue *vt; /* C value of the expression */
556 int ref_index; /* if >= 0, gives reference to a output constraint */
557 int input_index; /* if >= 0, gives reference to an input constraint */
558 int priority; /* priority, used to assign registers */
559 int reg; /* if >= 0, register number used for this operand */
560 int is_llong; /* true if double register value */
561 int is_memory; /* true if memory operand */
562 int is_rw; /* for '+' modifier */
563 } ASMOperand;
564 #endif
565
566 struct sym_attr {
567 unsigned long got_offset;
568 unsigned long plt_offset;
569 #ifdef TCC_TARGET_ARM
570 unsigned char plt_thumb_stub:1;
571 #endif
572 };
573
574 struct TCCState {
575
576 int verbose; /* if true, display some information during compilation */
577 int nostdinc; /* if true, no standard headers are added */
578 int nostdlib; /* if true, no standard libraries are added */
579 int nocommon; /* if true, do not use common symbols for .bss data */
580 int static_link; /* if true, static linking is performed */
581 int rdynamic; /* if true, all symbols are exported */
582 int symbolic; /* if true, resolve symbols in the current module first */
583 int alacarte_link; /* if true, only link in referenced objects from archive */
584
585 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
586 char *soname; /* as specified on the command line (-soname) */
587 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
588
589 /* output type, see TCC_OUTPUT_XXX */
590 int output_type;
591 /* output format, see TCC_OUTPUT_FORMAT_xxx */
592 int output_format;
593
594 /* C language options */
595 int char_is_unsigned;
596 int leading_underscore;
597
598 /* warning switches */
599 int warn_write_strings;
600 int warn_unsupported;
601 int warn_error;
602 int warn_none;
603 int warn_implicit_function_declaration;
604
605 /* compile with debug symbol (and use them if error during execution) */
606 int do_debug;
607 #ifdef CONFIG_TCC_BCHECK
608 /* compile with built-in memory and bounds checker */
609 int do_bounds_check;
610 #endif
611 #ifdef TCC_TARGET_ARM
612 enum float_abi float_abi; /* float ABI of the generated code*/
613 #endif
614
615 addr_t text_addr; /* address of text section */
616 int has_text_addr;
617
618 unsigned long section_align; /* section alignment */
619
620 char *init_symbol; /* symbols to call at load-time (not used currently) */
621 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
622
623 #ifdef TCC_TARGET_I386
624 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
625 #endif
626
627 /* array of all loaded dlls (including those referenced by loaded dlls) */
628 DLLReference **loaded_dlls;
629 int nb_loaded_dlls;
630
631 /* include paths */
632 char **include_paths;
633 int nb_include_paths;
634
635 char **sysinclude_paths;
636 int nb_sysinclude_paths;
637
638 /* library paths */
639 char **library_paths;
640 int nb_library_paths;
641
642 /* crt?.o object path */
643 char **crt_paths;
644 int nb_crt_paths;
645
646 /* error handling */
647 void *error_opaque;
648 void (*error_func)(void *opaque, const char *msg);
649 int error_set_jmp_enabled;
650 jmp_buf error_jmp_buf;
651 int nb_errors;
652
653 /* output file for preprocessing (-E) */
654 FILE *ppfp;
655
656 /* for -MD/-MF: collected dependencies for this compilation */
657 char **target_deps;
658 int nb_target_deps;
659
660 /* compilation */
661 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
662 BufferedFile **include_stack_ptr;
663
664 int ifdef_stack[IFDEF_STACK_SIZE];
665 int *ifdef_stack_ptr;
666
667 /* included files enclosed with #ifndef MACRO */
668 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
669 CachedInclude **cached_includes;
670 int nb_cached_includes;
671
672 /* #pragma pack stack */
673 int pack_stack[PACK_STACK_SIZE];
674 int *pack_stack_ptr;
675
676 /* inline functions are stored as token lists and compiled last
677 only if referenced */
678 struct InlineFunc **inline_fns;
679 int nb_inline_fns;
680
681 /* sections */
682 Section **sections;
683 int nb_sections; /* number of sections, including first dummy section */
684
685 Section **priv_sections;
686 int nb_priv_sections; /* number of private sections */
687
688 /* got & plt handling */
689 Section *got;
690 Section *plt;
691 struct sym_attr *sym_attrs;
692 int nb_sym_attrs;
693 /* give the correspondance from symtab indexes to dynsym indexes */
694 int *symtab_to_dynsym;
695
696 /* temporary dynamic symbol sections (for dll loading) */
697 Section *dynsymtab_section;
698 /* exported dynamic symbol section */
699 Section *dynsym;
700 /* copy of the gobal symtab_section variable */
701 Section *symtab;
702 /* tiny assembler state */
703 Sym *asm_labels;
704
705 #ifdef TCC_TARGET_PE
706 /* PE info */
707 int pe_subsystem;
708 unsigned pe_file_align;
709 unsigned pe_stack_size;
710 # ifdef TCC_TARGET_X86_64
711 Section *uw_pdata;
712 int uw_sym;
713 unsigned uw_offs;
714 # endif
715 #endif
716
717 #ifdef TCC_IS_NATIVE
718 const char *runtime_main;
719 /* for tcc_relocate */
720 void *runtime_mem;
721 # ifdef HAVE_SELINUX
722 void *write_mem;
723 unsigned long mem_size;
724 # endif
725 #endif
726
727 /* used by main and tcc_parse_args only */
728 char **files; /* files seen on command line */
729 int nb_files; /* number thereof */
730 int nb_libraries; /* number of libs thereof */
731 char *outfile; /* output filename */
732 char *option_m; /* only -m32/-m64 handled */
733 int print_search_dirs; /* option */
734 int option_r; /* option -r */
735 int do_bench; /* option -bench */
736 int gen_deps; /* option -MD */
737 char *deps_outfile; /* option -MF */
738 };
739
740 /* The current value can be: */
741 #define VT_VALMASK 0x003f /* mask for value location, register or: */
742 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
743 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
744 #define VT_LOCAL 0x0032 /* offset on stack */
745 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
746 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
747 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
748 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
749 #define VT_LVAL 0x0100 /* var is an lvalue */
750 #define VT_SYM 0x0200 /* a symbol value is added */
751 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
752 char/short stored in integer registers) */
753 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
754 dereferencing value */
755 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
756 bounding function call point is in vc */
757 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
758 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
759 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
760 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
761
762 /* types */
763 #define VT_BTYPE 0x000f /* mask for basic type */
764 #define VT_INT 0 /* integer type */
765 #define VT_BYTE 1 /* signed byte type */
766 #define VT_SHORT 2 /* short type */
767 #define VT_VOID 3 /* void type */
768 #define VT_PTR 4 /* pointer */
769 #define VT_ENUM 5 /* enum definition */
770 #define VT_FUNC 6 /* function type */
771 #define VT_STRUCT 7 /* struct/union definition */
772 #define VT_FLOAT 8 /* IEEE float */
773 #define VT_DOUBLE 9 /* IEEE double */
774 #define VT_LDOUBLE 10 /* IEEE long double */
775 #define VT_BOOL 11 /* ISOC99 boolean type */
776 #define VT_LLONG 12 /* 64 bit integer */
777 #define VT_LONG 13 /* long integer (NEVER USED as type, only
778 during parsing) */
779 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
780 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
781 #define VT_UNSIGNED 0x0010 /* unsigned type */
782 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
783 #define VT_BITFIELD 0x0040 /* bitfield modifier */
784 #define VT_CONSTANT 0x0800 /* const modifier */
785 #define VT_VOLATILE 0x1000 /* volatile modifier */
786 #define VT_DEFSIGN 0x2000 /* signed type */
787 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
788
789 /* storage */
790 #define VT_EXTERN 0x00000080 /* extern definition */
791 #define VT_STATIC 0x00000100 /* static variable */
792 #define VT_TYPEDEF 0x00000200 /* typedef definition */
793 #define VT_INLINE 0x00000400 /* inline definition */
794 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
795 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
796 #define VT_WEAK 0x00010000 /* weak symbol */
797 #define VT_TLS 0x00040000 /* thread-local storage */
798 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
799 bitfield values, because bitfields never
800 have linkage and hence never have
801 visibility. */
802 #define VT_VIS_SIZE 2 /* We have four visibilities. */
803 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
804
805 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
806
807
808 /* type mask (except storage) */
809 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
810 #define VT_TYPE (~(VT_STORAGE))
811
812 /* token values */
813
814 /* warning: the following compare tokens depend on i386 asm code */
815 #define TOK_ULT 0x92
816 #define TOK_UGE 0x93
817 #define TOK_EQ 0x94
818 #define TOK_NE 0x95
819 #define TOK_ULE 0x96
820 #define TOK_UGT 0x97
821 #define TOK_Nset 0x98
822 #define TOK_Nclear 0x99
823 #define TOK_LT 0x9c
824 #define TOK_GE 0x9d
825 #define TOK_LE 0x9e
826 #define TOK_GT 0x9f
827
828 #define TOK_LAND 0xa0
829 #define TOK_LOR 0xa1
830 #define TOK_DEC 0xa2
831 #define TOK_MID 0xa3 /* inc/dec, to void constant */
832 #define TOK_INC 0xa4
833 #define TOK_UDIV 0xb0 /* unsigned division */
834 #define TOK_UMOD 0xb1 /* unsigned modulo */
835 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
836
837 /* tokens that carry values (in additional token string space / tokc) --> */
838 #define TOK_CCHAR 0xb3 /* char constant in tokc */
839 #define TOK_LCHAR 0xb4
840 #define TOK_CINT 0xb5 /* number in tokc */
841 #define TOK_CUINT 0xb6 /* unsigned int constant */
842 #define TOK_CLLONG 0xb7 /* long long constant */
843 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
844 #define TOK_STR 0xb9 /* pointer to string in tokc */
845 #define TOK_LSTR 0xba
846 #define TOK_CFLOAT 0xbb /* float constant */
847 #define TOK_CDOUBLE 0xbc /* double constant */
848 #define TOK_CLDOUBLE 0xbd /* long double constant */
849 #define TOK_PPNUM 0xbe /* preprocessor number */
850 #define TOK_LINENUM 0xbf /* line number info */
851 /* <-- */
852
853 #define TOK_TWOSHARPS 0xc0 /* ## preprocessing token */
854 #define TOK_PLCHLDR 0xc1 /* placeholder token as defined in C99 */
855 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
856 #define TOK_ADDC1 0xc3 /* add with carry generation */
857 #define TOK_ADDC2 0xc4 /* add with carry use */
858 #define TOK_SUBC1 0xc5 /* add with carry generation */
859 #define TOK_SUBC2 0xc6 /* add with carry use */
860 #define TOK_ARROW 0xcb
861 #define TOK_DOTS 0xcc /* three dots */
862 #define TOK_SHR 0xcd /* unsigned shift right */
863 #define TOK_NOSUBST 0xcf /* means following token has already been pp'd */
864
865 #define TOK_SHL 0x01 /* shift left */
866 #define TOK_SAR 0x02 /* signed shift right */
867
868 /* assignement operators : normal operator or 0x80 */
869 #define TOK_A_MOD 0xa5
870 #define TOK_A_AND 0xa6
871 #define TOK_A_MUL 0xaa
872 #define TOK_A_ADD 0xab
873 #define TOK_A_SUB 0xad
874 #define TOK_A_DIV 0xaf
875 #define TOK_A_XOR 0xde
876 #define TOK_A_OR 0xfc
877 #define TOK_A_SHL 0x81
878 #define TOK_A_SAR 0x82
879
880 #ifndef offsetof
881 #define offsetof(type, field) ((size_t) &((type *)0)->field)
882 #endif
883
884 #ifndef countof
885 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
886 #endif
887
888 #define TOK_EOF (-1) /* end of file */
889 #define TOK_LINEFEED 10 /* line feed */
890
891 /* all identificators and strings have token above that */
892 #define TOK_IDENT 256
893
894 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
895 #define TOK_ASM_int TOK_INT
896 #define TOK_ASM_weak TOK_WEAK1
897
898 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
899 /* only used for i386 asm opcodes definitions */
900 #define DEF_BWL(x) \
901 DEF(TOK_ASM_ ## x ## b, #x "b") \
902 DEF(TOK_ASM_ ## x ## w, #x "w") \
903 DEF(TOK_ASM_ ## x ## l, #x "l") \
904 DEF(TOK_ASM_ ## x, #x)
905 #define DEF_WL(x) \
906 DEF(TOK_ASM_ ## x ## w, #x "w") \
907 DEF(TOK_ASM_ ## x ## l, #x "l") \
908 DEF(TOK_ASM_ ## x, #x)
909 #ifdef TCC_TARGET_X86_64
910 # define DEF_BWLQ(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 ## q, #x "q") \
915 DEF(TOK_ASM_ ## x, #x)
916 # define DEF_WLQ(x) \
917 DEF(TOK_ASM_ ## x ## w, #x "w") \
918 DEF(TOK_ASM_ ## x ## l, #x "l") \
919 DEF(TOK_ASM_ ## x ## q, #x "q") \
920 DEF(TOK_ASM_ ## x, #x)
921 # define DEF_BWLX DEF_BWLQ
922 # define DEF_WLX DEF_WLQ
923 /* number of sizes + 1 */
924 # define NBWLX 5
925 #else
926 # define DEF_BWLX DEF_BWL
927 # define DEF_WLX DEF_WL
928 /* number of sizes + 1 */
929 # define NBWLX 4
930 #endif
931
932 #define DEF_FP1(x) \
933 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
934 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
935 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
936 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
937
938 #define DEF_FP(x) \
939 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
940 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
941 DEF_FP1(x)
942
943 #define DEF_ASMTEST(x) \
944 DEF_ASM(x ## o) \
945 DEF_ASM(x ## no) \
946 DEF_ASM(x ## b) \
947 DEF_ASM(x ## c) \
948 DEF_ASM(x ## nae) \
949 DEF_ASM(x ## nb) \
950 DEF_ASM(x ## nc) \
951 DEF_ASM(x ## ae) \
952 DEF_ASM(x ## e) \
953 DEF_ASM(x ## z) \
954 DEF_ASM(x ## ne) \
955 DEF_ASM(x ## nz) \
956 DEF_ASM(x ## be) \
957 DEF_ASM(x ## na) \
958 DEF_ASM(x ## nbe) \
959 DEF_ASM(x ## a) \
960 DEF_ASM(x ## s) \
961 DEF_ASM(x ## ns) \
962 DEF_ASM(x ## p) \
963 DEF_ASM(x ## pe) \
964 DEF_ASM(x ## np) \
965 DEF_ASM(x ## po) \
966 DEF_ASM(x ## l) \
967 DEF_ASM(x ## nge) \
968 DEF_ASM(x ## nl) \
969 DEF_ASM(x ## ge) \
970 DEF_ASM(x ## le) \
971 DEF_ASM(x ## ng) \
972 DEF_ASM(x ## nle) \
973 DEF_ASM(x ## g)
974
975 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
976
977 enum tcc_token {
978 TOK_LAST = TOK_IDENT - 1,
979 #define DEF(id, str) id,
980 #include "tcctok.h"
981 #undef DEF
982 };
983
984 #define TOK_UIDENT TOK_DEFINE
985
986 /* space exlcuding newline */
987 static inline int is_space(int ch)
988 {
989 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
990 }
991
992 static inline int isid(int c)
993 {
994 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
995 }
996
997 static inline int isnum(int c)
998 {
999 return c >= '0' && c <= '9';
1000 }
1001
1002 static inline int isoct(int c)
1003 {
1004 return c >= '0' && c <= '7';
1005 }
1006
1007 static inline int toup(int c)
1008 {
1009 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1010 }
1011
1012 #ifndef PUB_FUNC
1013 # define PUB_FUNC
1014 #endif
1015
1016 #ifdef ONE_SOURCE
1017 #define ST_INLN static inline
1018 #define ST_FUNC static
1019 #define ST_DATA static
1020 #else
1021 #define ST_INLN
1022 #define ST_FUNC
1023 #define ST_DATA extern
1024 #endif
1025
1026 /* ------------ libtcc.c ------------ */
1027
1028 /* use GNU C extensions */
1029 ST_DATA int gnu_ext;
1030 /* use Tiny C extensions */
1031 ST_DATA int tcc_ext;
1032 /* XXX: get rid of this ASAP */
1033 ST_DATA struct TCCState *tcc_state;
1034
1035 #ifdef MEM_DEBUG
1036 ST_DATA int mem_cur_size;
1037 ST_DATA int mem_max_size;
1038 #endif
1039
1040 #define AFF_PRINT_ERROR 0x0001 /* print error if file not found */
1041 #define AFF_REFERENCED_DLL 0x0002 /* load a referenced dll from another dll */
1042 #define AFF_PREPROCESS 0x0004 /* preprocess file */
1043
1044 /* public functions currently used by the tcc main function */
1045 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1046 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1047 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1048 PUB_FUNC char *tcc_basename(const char *name);
1049 PUB_FUNC char *tcc_fileextension (const char *name);
1050 PUB_FUNC void tcc_free(void *ptr);
1051 PUB_FUNC void *tcc_malloc(unsigned long size);
1052 PUB_FUNC void *tcc_mallocz(unsigned long size);
1053 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1054 PUB_FUNC char *tcc_strdup(const char *str);
1055 #define free(p) use_tcc_free(p)
1056 #define malloc(s) use_tcc_malloc(s)
1057 #define realloc(p, s) use_tcc_realloc(p, s)
1058 #undef strdup
1059 #define strdup(s) use_tcc_strdup(s)
1060 PUB_FUNC void tcc_memstats(void);
1061 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1062 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1063 PUB_FUNC void tcc_warning(const char *fmt, ...);
1064
1065 /* other utilities */
1066 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1067 ST_FUNC void dynarray_reset(void *pp, int *n);
1068 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1069 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1070 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1071 ST_FUNC void cstr_new(CString *cstr);
1072 ST_FUNC void cstr_free(CString *cstr);
1073 ST_FUNC void cstr_reset(CString *cstr);
1074
1075 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1076 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1077 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1078 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1079 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1080
1081 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1082 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1083 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1084
1085 ST_INLN void sym_free(Sym *sym);
1086 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1087 ST_FUNC Sym *sym_find2(Sym *s, int v);
1088 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1089 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1090 ST_INLN Sym *struct_find(int v);
1091 ST_INLN Sym *sym_find(int v);
1092 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1093
1094 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1095 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1096 ST_FUNC void tcc_close(void);
1097
1098 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1099 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1100 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1101
1102 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1103 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1104
1105 PUB_FUNC void tcc_set_environment(TCCState *s);
1106
1107 /* ------------ tccpp.c ------------ */
1108
1109 ST_DATA struct BufferedFile *file;
1110 ST_DATA int ch, tok;
1111 ST_DATA CValue tokc;
1112 ST_DATA const int *macro_ptr;
1113 ST_DATA int parse_flags;
1114 ST_DATA int tok_flags;
1115 ST_DATA CString tokcstr; /* current parsed string, if any */
1116
1117 /* display benchmark infos */
1118 ST_DATA int total_lines;
1119 ST_DATA int total_bytes;
1120 ST_DATA int tok_ident;
1121 ST_DATA TokenSym **table_ident;
1122
1123 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1124 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1125 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1126 #define TOK_FLAG_EOF 0x0008 /* end of file */
1127
1128 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1129 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1130 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1131 token. line feed is also
1132 returned at eof */
1133 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1134 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1135 #define PARSE_FLAG_PACK 0x0020 /* #pragma pack */
1136
1137 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1138 ST_FUNC char *get_tok_str(int v, CValue *cv);
1139 ST_FUNC void save_parse_state(ParseState *s);
1140 ST_FUNC void restore_parse_state(ParseState *s);
1141 ST_INLN void tok_str_new(TokenString *s);
1142 ST_FUNC void tok_str_free(int *str);
1143 ST_FUNC void tok_str_add(TokenString *s, int t);
1144 ST_FUNC void tok_str_add_tok(TokenString *s);
1145 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1146 ST_FUNC void define_undef(Sym *s);
1147 ST_INLN Sym *define_find(int v);
1148 ST_FUNC void free_defines(Sym *b);
1149 ST_FUNC Sym *label_find(int v);
1150 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1151 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1152 ST_FUNC void parse_define(void);
1153 ST_FUNC void preprocess(int is_bof);
1154 ST_FUNC void next_nomacro(void);
1155 ST_FUNC void next(void);
1156 ST_INLN void unget_tok(int last_tok);
1157 ST_FUNC void preprocess_init(TCCState *s1);
1158 ST_FUNC void preprocess_new(void);
1159 ST_FUNC int tcc_preprocess(TCCState *s1);
1160 ST_FUNC void skip(int c);
1161 ST_FUNC NORETURN void expect(const char *msg);
1162
1163 /* ------------ tccgen.c ------------ */
1164
1165 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1166 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1167 #ifdef CONFIG_TCC_ASM
1168 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1169 #endif
1170 #ifdef CONFIG_TCC_BCHECK
1171 /* bound check related sections */
1172 ST_DATA Section *bounds_section; /* contains global data bound description */
1173 ST_DATA Section *lbounds_section; /* contains local data bound description */
1174 #endif
1175 /* symbol sections */
1176 ST_DATA Section *symtab_section, *strtab_section;
1177 /* debug sections */
1178 ST_DATA Section *stab_section, *stabstr_section;
1179
1180 #define SYM_POOL_NB (8192 / sizeof(Sym))
1181 ST_DATA Sym *sym_free_first;
1182 ST_DATA void **sym_pools;
1183 ST_DATA int nb_sym_pools;
1184
1185 ST_DATA Sym *global_stack;
1186 ST_DATA Sym *local_stack;
1187 ST_DATA Sym *local_label_stack;
1188 ST_DATA Sym *global_label_stack;
1189 ST_DATA Sym *define_stack;
1190 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1191 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
1192 #define vstack (__vstack + 1)
1193 ST_DATA int rsym, anon_sym, ind, loc;
1194
1195 ST_DATA int const_wanted; /* true if constant wanted */
1196 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1197 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1198 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1199 ST_DATA int func_var; /* true if current function is variadic */
1200 ST_DATA int func_vc;
1201 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1202 ST_DATA char *funcname;
1203
1204 ST_INLN int is_float(int t);
1205 ST_FUNC int ieee_finite(double d);
1206 ST_FUNC void test_lvalue(void);
1207 ST_FUNC void swap(int *p, int *q);
1208 ST_FUNC void vpushi(int v);
1209 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1210 ST_FUNC void vset(CType *type, int r, int v);
1211 ST_FUNC void vswap(void);
1212 ST_FUNC void vpush_global_sym(CType *type, int v);
1213 ST_FUNC void vrote(SValue *e, int n);
1214 ST_FUNC void vrott(int n);
1215 ST_FUNC void vrotb(int n);
1216 #ifdef TCC_TARGET_ARM
1217 ST_FUNC int get_reg_ex(int rc, int rc2);
1218 ST_FUNC void lexpand_nr(void);
1219 #endif
1220 ST_FUNC void vpushv(SValue *v);
1221 ST_FUNC void save_reg(int r);
1222 ST_FUNC int get_reg(int rc);
1223 ST_FUNC void save_regs(int n);
1224 ST_FUNC int gv(int rc);
1225 ST_FUNC void gv2(int rc1, int rc2);
1226 ST_FUNC void vpop(void);
1227 ST_FUNC void gen_op(int op);
1228 ST_FUNC int type_size(CType *type, int *a);
1229 ST_FUNC void mk_pointer(CType *type);
1230 ST_FUNC void vstore(void);
1231 ST_FUNC void inc(int post, int c);
1232 ST_FUNC void parse_asm_str(CString *astr);
1233 ST_FUNC int lvalue_type(int t);
1234 ST_FUNC void indir(void);
1235 ST_FUNC void unary(void);
1236 ST_FUNC void expr_prod(void);
1237 ST_FUNC void expr_sum(void);
1238 ST_FUNC void gexpr(void);
1239 ST_FUNC int expr_const(void);
1240 ST_FUNC void gen_inline_functions(void);
1241 ST_FUNC void decl(int l);
1242 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1243 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1244 #endif
1245 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1246 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1247 #endif
1248
1249 /* ------------ tccelf.c ------------ */
1250
1251 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1252 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1253 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1254
1255 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1256
1257 typedef struct {
1258 unsigned int n_strx; /* index into string table of name */
1259 unsigned char n_type; /* type of symbol */
1260 unsigned char n_other; /* misc info (usually empty) */
1261 unsigned short n_desc; /* description field */
1262 unsigned int n_value; /* value of symbol */
1263 } Stab_Sym;
1264
1265 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);
1266
1267 ST_FUNC int put_elf_str(Section *s, const char *sym);
1268 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1269 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1270 ST_FUNC int find_elf_sym(Section *s, const char *name);
1271 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1272
1273 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1274 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1275 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1276 ST_FUNC void put_stabd(int type, int other, int desc);
1277
1278 ST_FUNC void relocate_common_syms(void);
1279 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1280 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1281 ST_FUNC void relocate_plt(TCCState *s1);
1282
1283 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1284 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1285 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1286 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1287
1288 ST_FUNC void build_got_entries(TCCState *s1);
1289 ST_FUNC void tcc_add_runtime(TCCState *s1);
1290
1291 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1292 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1293 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1294 #endif
1295
1296 #ifndef TCC_TARGET_PE
1297 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1298 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1299 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1300 ST_FUNC void minp(void);
1301 ST_INLN void inp(void);
1302 ST_FUNC int handle_eob(void);
1303 #endif
1304
1305 /* ------------ xxx-gen.c ------------ */
1306
1307 ST_DATA const int reg_classes[NB_REGS];
1308
1309 ST_FUNC void gsym_addr(int t, int a);
1310 ST_FUNC void gsym(int t);
1311 ST_FUNC void load(int r, SValue *sv);
1312 ST_FUNC void store(int r, SValue *v);
1313 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align);
1314 ST_FUNC void gfunc_call(int nb_args);
1315 ST_FUNC void gfunc_prolog(CType *func_type);
1316 ST_FUNC void gfunc_epilog(void);
1317 ST_FUNC int gjmp(int t);
1318 ST_FUNC void gjmp_addr(int a);
1319 ST_FUNC int gtst(int inv, int t);
1320 ST_FUNC void gen_opi(int op);
1321 ST_FUNC void gen_opf(int op);
1322 ST_FUNC void gen_cvt_ftoi(int t);
1323 ST_FUNC void gen_cvt_ftof(int t);
1324 ST_FUNC void ggoto(void);
1325 #ifndef TCC_TARGET_C67
1326 ST_FUNC void o(unsigned int c);
1327 #endif
1328 #ifndef TCC_TARGET_ARM
1329 ST_FUNC void gen_cvt_itof(int t);
1330 #endif
1331 ST_FUNC void gen_vla_sp_save(int addr);
1332 ST_FUNC void gen_vla_sp_restore(int addr);
1333 ST_FUNC void gen_vla_alloc(CType *type, int align);
1334
1335 /* ------------ i386-gen.c ------------ */
1336 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1337 ST_FUNC void g(int c);
1338 ST_FUNC int oad(int c, int s);
1339 ST_FUNC void gen_le16(int c);
1340 ST_FUNC void gen_le32(int c);
1341 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1342 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1343 #endif
1344
1345 #ifdef CONFIG_TCC_BCHECK
1346 ST_FUNC void gen_bounded_ptr_add(void);
1347 ST_FUNC void gen_bounded_ptr_deref(void);
1348 #endif
1349
1350 /* ------------ x86_64-gen.c ------------ */
1351 #ifdef TCC_TARGET_X86_64
1352 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1353 ST_FUNC void gen_opl(int op);
1354 #endif
1355
1356 /* ------------ arm-gen.c ------------ */
1357 #ifdef TCC_TARGET_ARM
1358 #ifdef TCC_ARM_EABI
1359 ST_FUNC char *default_elfinterp(struct TCCState *s);
1360 #endif
1361 ST_FUNC void arm_init(struct TCCState *s);
1362 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1363 ST_FUNC void gen_cvt_itof1(int t);
1364 #endif
1365
1366 /* ------------ c67-gen.c ------------ */
1367 #ifdef TCC_TARGET_C67
1368 #endif
1369
1370 /* ------------ tcccoff.c ------------ */
1371
1372 #ifdef TCC_TARGET_COFF
1373 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1374 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1375 #endif
1376
1377 /* ------------ tccasm.c ------------ */
1378 ST_FUNC void asm_instr(void);
1379 ST_FUNC void asm_global_instr(void);
1380 #ifdef CONFIG_TCC_ASM
1381 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1382 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1383 ST_FUNC int asm_int_expr(TCCState *s1);
1384 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1385 /* ------------ i386-asm.c ------------ */
1386 ST_FUNC void gen_expr32(ExprValue *pe);
1387 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1388 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1389 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1390 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1391 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1392 #endif
1393
1394 /* ------------ tccpe.c -------------- */
1395 #ifdef TCC_TARGET_PE
1396 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1397 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1398 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1399 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1400 #ifdef TCC_TARGET_X86_64
1401 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1402 #endif
1403 /* symbol properties stored in Elf32_Sym->st_other */
1404 # define ST_PE_EXPORT 0x10
1405 # define ST_PE_IMPORT 0x20
1406 # define ST_PE_STDCALL 0x40
1407 #endif
1408
1409 /* ------------ tccrun.c ----------------- */
1410 #ifdef TCC_IS_NATIVE
1411 #ifdef CONFIG_TCC_STATIC
1412 #define RTLD_LAZY 0x001
1413 #define RTLD_NOW 0x002
1414 #define RTLD_GLOBAL 0x100
1415 #define RTLD_DEFAULT NULL
1416 /* dummy function for profiling */
1417 ST_FUNC void *dlopen(const char *filename, int flag);
1418 ST_FUNC void dlclose(void *p);
1419 ST_FUNC const char *dlerror(void);
1420 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1421 #elif !defined _WIN32
1422 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1423 #endif
1424
1425 #ifdef CONFIG_TCC_BACKTRACE
1426 ST_DATA int rt_num_callers;
1427 ST_DATA const char **rt_bound_error_msg;
1428 ST_DATA void *rt_prog_main;
1429 ST_FUNC void tcc_set_num_callers(int n);
1430 #endif
1431 #endif
1432
1433 /********************************************************/
1434 #undef ST_DATA
1435 #ifdef ONE_SOURCE
1436 #define ST_DATA static
1437 #else
1438 #define ST_DATA
1439 #endif
1440 /********************************************************/
1441 #endif /* _TCC_H */
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