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libtcc: -Wl,... incremental parsing
[tinycc.git] / tcc.h
blob2c38fa5c75860e0d2fb74534b9b4947d2908301c
1 /*
2 * TCC - Tiny C Compiler
3 *
4 * Copyright (c) 2001-2004 Fabrice Bellard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef _TCC_H
22 #define _TCC_H
23
24 #define _GNU_SOURCE
25 #include "config.h"
26
27 #include <stdlib.h>
28 #include <stdio.h>
29 #include <stdarg.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <math.h>
33 #include <signal.h>
34 #include <fcntl.h>
35 #include <setjmp.h>
36 #include <time.h>
37 #include <sys/stat.h> /* stat() */
38
39 #ifndef _WIN32
40 # include <unistd.h>
41 # include <sys/time.h>
42 # include <sys/ucontext.h>
43 # include <sys/mman.h>
44 # ifndef CONFIG_TCC_STATIC
45 # include <dlfcn.h>
46 # endif
47 /* XXX: need to define this to use them in non ISOC99 context */
48 extern float strtof (const char *__nptr, char **__endptr);
49 extern long double strtold (const char *__nptr, char **__endptr);
50 #else /* on _WIN32: */
51 # include <windows.h>
52 # include <sys/timeb.h>
53 # include <io.h> /* open, close etc. */
54 # include <direct.h> /* getcwd */
55 # ifdef __GNUC__
56 # include <stdint.h>
57 # endif
58 # define inline __inline
59 # define inp next_inp
60 # define snprintf _snprintf
61 # define vsnprintf _vsnprintf
62 # ifndef __GNUC__
63 # define strtold (long double)strtod
64 # define strtof (float)strtod
65 # define strtoll _strtoi64
66 # define strtoull _strtoui64
67 # endif
68 # ifdef LIBTCC_AS_DLL
69 # define LIBTCCAPI __declspec(dllexport)
70 # define PUB_FUNC LIBTCCAPI
71 # endif
72 # ifdef _MSC_VER
73 # pragma warning (disable : 4244) // conversion from 'uint64_t' to 'int', possible loss of data
74 # pragma warning (disable : 4267) // conversion from 'size_t' to 'int', possible loss of data
75 # pragma warning (disable : 4996) // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
76 # pragma warning (disable : 4018) // signed/unsigned mismatch
77 # pragma warning (disable : 4146) // unary minus operator applied to unsigned type, result still unsigned
78 # endif
79 #endif
80
81 #ifndef O_BINARY
82 # define O_BINARY 0
83 #endif
84
85 #ifdef __GNUC__
86 # define NORETURN __attribute__ ((noreturn))
87 #elif defined _MSC_VER
88 # define NORETURN __declspec(noreturn)
89 #else
90 # define NORETURN
91 #endif
92
93 #ifdef _WIN32
94 # define IS_DIRSEP(c) (c == '/' || c == '\\')
95 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
96 # define PATHCMP stricmp
97 #else
98 # define IS_DIRSEP(c) (c == '/')
99 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
100 # define PATHCMP strcmp
101 #endif
102
103 #ifdef TCC_TARGET_PE
104 #define PATHSEP ';'
105 #else
106 #define PATHSEP ':'
107 #endif
108
109 #include "elf.h"
110 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
111 # define ELFCLASSW ELFCLASS64
112 # define ElfW(type) Elf##64##_##type
113 # define ELFW(type) ELF##64##_##type
114 # define ElfW_Rel ElfW(Rela)
115 # define SHT_RELX SHT_RELA
116 # define REL_SECTION_FMT ".rela%s"
117 /* XXX: DLL with PLT would only work with x86-64 for now */
118 # define TCC_OUTPUT_DLL_WITH_PLT
119 #else
120 # define ELFCLASSW ELFCLASS32
121 # define ElfW(type) Elf##32##_##type
122 # define ELFW(type) ELF##32##_##type
123 # define ElfW_Rel ElfW(Rel)
124 # define SHT_RELX SHT_REL
125 # define REL_SECTION_FMT ".rel%s"
126 #endif
127
128 /* target address type */
129 #define addr_t ElfW(Addr)
130
131 #include "stab.h"
132 #include "libtcc.h"
133
134 /* parser debug */
135 /* #define PARSE_DEBUG */
136 /* preprocessor debug */
137 /* #define PP_DEBUG */
138 /* include file debug */
139 /* #define INC_DEBUG */
140 /* memory leak debug */
141 /* #define MEM_DEBUG */
142 /* assembler debug */
143 /* #define ASM_DEBUG */
144
145 /* target selection */
146 /* #define TCC_TARGET_I386 *//* i386 code generator */
147 /* #define TCC_TARGET_ARM *//* ARMv4 code generator */
148 /* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */
149 /* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */
150 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
151
152 /* default target is I386 */
153 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
154 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
155 !defined(TCC_TARGET_X86_64)
156 #define TCC_TARGET_I386
157 #endif
158
159 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
160 !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
161 !defined(CONFIG_USE_LIBGCC)
162 #define CONFIG_TCC_BCHECK /* enable bound checking code */
163 #endif
164
165 /* define it to include assembler support */
166 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
167 !defined(TCC_TARGET_C67)
168 #define CONFIG_TCC_ASM
169 #endif
170
171 /* object format selection */
172 #if defined(TCC_TARGET_C67)
173 #define TCC_TARGET_COFF
174 #endif
175
176 /* only native compiler supports -run */
177 #if defined _WIN32 == defined TCC_TARGET_PE
178 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
179 # define TCC_IS_NATIVE
180 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
181 # define TCC_IS_NATIVE
182 # elif defined __arm__ && defined TCC_TARGET_ARM
183 # define TCC_IS_NATIVE
184 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
185 # define TCC_IS_NATIVE
186 # endif
187 #endif
188
189 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
190 # define CONFIG_TCC_BACKTRACE
191 #endif
192
193 /* ------------ path configuration ------------ */
194
195 #ifndef CONFIG_SYSROOT
196 # define CONFIG_SYSROOT ""
197 #endif
198 #ifndef CONFIG_TCCDIR
199 # define CONFIG_TCCDIR "."
200 #endif
201 #ifndef CONFIG_LDDIR
202 # ifdef TCC_TARGET_X86_64
203 # define CONFIG_LDDIR "lib64"
204 # else
205 # define CONFIG_LDDIR "lib"
206 # endif
207 #endif
208
209 #ifdef CONFIG_MULTIARCHDIR
210 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
211 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
212 #else
213 # define USE_MUADIR(s) s
214 # define ALSO_MUADIR(s) s
215 #endif
216
217 /* path to find crt1.o, crti.o and crtn.o */
218 #ifndef CONFIG_TCC_CRTPREFIX
219 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
220 #endif
221
222 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
223
224 /* system include paths */
225 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
226 # ifdef TCC_TARGET_PE
227 # define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
228 # else
229 # define CONFIG_TCC_SYSINCLUDEPATHS \
230 "{B}/include" \
231 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
232 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include")
233 # endif
234 #endif
235
236 /* library search paths */
237 #ifndef CONFIG_TCC_LIBPATHS
238 # ifdef TCC_TARGET_PE
239 # define CONFIG_TCC_LIBPATHS "{B}/lib"
240 # else
241 # define CONFIG_TCC_LIBPATHS \
242 ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
243 ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
244 ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
245 # endif
246 #endif
247
248 /* name of ELF interpreter */
249 #ifndef CONFIG_TCC_ELFINTERP
250 # if defined __FreeBSD__
251 # define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
252 # elif defined __FreeBSD_kernel__
253 # if defined(TCC_TARGET_X86_64)
254 # define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
255 # else
256 # define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
257 # endif
258 # elif defined __DragonFly__
259 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
260 # elif defined __NetBSD__
261 # define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
262 # elif defined __GNU__
263 # define CONFIG_TCC_ELFINTERP "/lib/ld.so"
264 # elif defined(TCC_TARGET_PE)
265 # define CONFIG_TCC_ELFINTERP "-"
266 # elif defined(TCC_UCLIBC)
267 # define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
268 # elif defined TCC_TARGET_ARM64
269 # define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
270 # elif defined(TCC_TARGET_X86_64)
271 # define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
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 TOKSTR_MAX_SIZE 256
316 #define PACK_STACK_SIZE 8
317
318 #define TOK_HASH_SIZE 16384 /* must be a power of two */
319 #define TOK_ALLOC_INCR 512 /* must be a power of two */
320 #define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */
321 #define TOKSYM_TAL_SIZE (768 * 1024) /* allocator for tiny TokenSym in table_ident */
322 #define TOKSTR_TAL_SIZE (768 * 1024) /* allocator for tiny TokenString instances */
323 #define CSTR_TAL_SIZE (256 * 1024) /* allocator for tiny CString instances */
324 #define TOKSYM_TAL_LIMIT 256 /* prefer unique limits to distinguish allocators debug msgs */
325 #define TOKSTR_TAL_LIMIT 128 /* 32 * sizeof(int) */
326 #define CSTR_TAL_LIMIT 1024
327
328 /* token symbol management */
329 typedef struct TokenSym {
330 struct TokenSym *hash_next;
331 struct Sym *sym_define; /* direct pointer to define */
332 struct Sym *sym_label; /* direct pointer to label */
333 struct Sym *sym_struct; /* direct pointer to structure */
334 struct Sym *sym_identifier; /* direct pointer to identifier */
335 int tok; /* token number */
336 int len;
337 char str[1];
338 } TokenSym;
339
340 #ifdef TCC_TARGET_PE
341 typedef unsigned short nwchar_t;
342 #else
343 typedef int nwchar_t;
344 #endif
345
346 typedef struct CString {
347 int size; /* size in bytes */
348 void *data; /* either 'char *' or 'nwchar_t *' */
349 int size_allocated;
350 } CString;
351
352 /* type definition */
353 typedef struct CType {
354 int t;
355 struct Sym *ref;
356 } CType;
357
358 /* constant value */
359 typedef union CValue {
360 long double ld;
361 double d;
362 float f;
363 uint64_t i;
364 struct {
365 int size;
366 const void *data;
367 } str;
368 int tab[LDOUBLE_SIZE/4];
369 } CValue;
370
371 /* value on stack */
372 typedef struct SValue {
373 CType type; /* type */
374 unsigned short r; /* register + flags */
375 unsigned short r2; /* second register, used for 'long long'
376 type. If not used, set to VT_CONST */
377 CValue c; /* constant, if VT_CONST */
378 struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */
379 } SValue;
380
381 struct Attribute {
382 unsigned
383 func_call : 3, /* calling convention (0..5), see below */
384 aligned : 5, /* alignement (0..16) */
385 packed : 1,
386 func_export : 1,
387 func_import : 1,
388 func_args : 5,
389 func_proto : 1,
390 mode : 4,
391 weak : 1,
392 visibility : 2,
393 fill : 8; // 8 bits left to fit well in union below
394 };
395
396 /* GNUC attribute definition */
397 typedef struct AttributeDef {
398 struct Attribute a;
399 struct Section *section;
400 int alias_target; /* token */
401 int asm_label; /* associated asm label */
402 } AttributeDef;
403
404 /* symbol management */
405 typedef struct Sym {
406 int v; /* symbol token */
407 union {
408 int asm_label; /* associated asm label */
409 int scope; /* scope level for locals */
410 };
411 union {
412 long r; /* associated register */
413 struct Attribute a;
414 };
415 union {
416 long c; /* associated number */
417 int *d; /* define token stream */
418 };
419 CType type; /* associated type */
420 union {
421 struct Sym *next; /* next related symbol */
422 long jnext; /* next jump label */
423 };
424 struct Sym *prev; /* prev symbol in stack */
425 struct Sym *prev_tok; /* previous symbol for this token */
426 } Sym;
427
428 /* section definition */
429 /* XXX: use directly ELF structure for parameters ? */
430 /* special flag to indicate that the section should not be linked to
431 the other ones */
432 #define SHF_PRIVATE 0x80000000
433
434 /* special flag, too */
435 #define SECTION_ABS ((void *)1)
436
437 typedef struct Section {
438 unsigned long data_offset; /* current data offset */
439 unsigned char *data; /* section data */
440 unsigned long data_allocated; /* used for realloc() handling */
441 int sh_name; /* elf section name (only used during output) */
442 int sh_num; /* elf section number */
443 int sh_type; /* elf section type */
444 int sh_flags; /* elf section flags */
445 int sh_info; /* elf section info */
446 int sh_addralign; /* elf section alignment */
447 int sh_entsize; /* elf entry size */
448 unsigned long sh_size; /* section size (only used during output) */
449 addr_t sh_addr; /* address at which the section is relocated */
450 unsigned long sh_offset; /* file offset */
451 int nb_hashed_syms; /* used to resize the hash table */
452 struct Section *link; /* link to another section */
453 struct Section *reloc; /* corresponding section for relocation, if any */
454 struct Section *hash; /* hash table for symbols */
455 struct Section *next;
456 char name[1]; /* section name */
457 } Section;
458
459 typedef struct DLLReference {
460 int level;
461 void *handle;
462 char name[1];
463 } DLLReference;
464
465 /* -------------------------------------------------- */
466
467 #define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */
468 #define SYM_FIELD 0x20000000 /* struct/union field symbol space */
469 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
470
471 /* stored in 'Sym.c' field */
472 #define FUNC_NEW 1 /* ansi function prototype */
473 #define FUNC_OLD 2 /* old function prototype */
474 #define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */
475
476 /* stored in 'Sym.r' field */
477 #define FUNC_CDECL 0 /* standard c call */
478 #define FUNC_STDCALL 1 /* pascal c call */
479 #define FUNC_FASTCALL1 2 /* first param in %eax */
480 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
481 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
482 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
483
484 /* field 'Sym.t' for macros */
485 #define MACRO_OBJ 0 /* object like macro */
486 #define MACRO_FUNC 1 /* function like macro */
487
488 /* field 'Sym.r' for C labels */
489 #define LABEL_DEFINED 0 /* label is defined */
490 #define LABEL_FORWARD 1 /* label is forward defined */
491 #define LABEL_DECLARED 2 /* label is declared but never used */
492
493 /* type_decl() types */
494 #define TYPE_ABSTRACT 1 /* type without variable */
495 #define TYPE_DIRECT 2 /* type with variable */
496
497 #define IO_BUF_SIZE 8192
498
499 typedef struct BufferedFile {
500 uint8_t *buf_ptr;
501 uint8_t *buf_end;
502 int fd;
503 struct BufferedFile *prev;
504 int line_num; /* current line number - here to simplify code */
505 int line_ref; /* tcc -E: last printed line */
506 int ifndef_macro; /* #ifndef macro / #endif search */
507 int ifndef_macro_saved; /* saved ifndef_macro */
508 int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
509 int include_next_index; /* next search path */
510 char filename[1024]; /* filename */
511 unsigned char unget[4];
512 unsigned char buffer[1]; /* extra size for CH_EOB char */
513 } BufferedFile;
514
515 #define CH_EOB '\\' /* end of buffer or '\0' char in file */
516 #define CH_EOF (-1) /* end of file */
517
518 /* parsing state (used to save parser state to reparse part of the
519 source several times) */
520 typedef struct ParseState {
521 const int *macro_ptr;
522 int line_num;
523 int tok;
524 CValue tokc;
525 } ParseState;
526
527 /* used to record tokens */
528 typedef struct TokenString {
529 int *str;
530 int len;
531 int allocated_len;
532 int last_line_num;
533 /* used to chain token-strings with begin/end_macro() */
534 struct TokenString *prev;
535 const int *prev_ptr;
536 char alloc;
537 } TokenString;
538
539 /* inline functions */
540 typedef struct InlineFunc {
541 TokenString func_str;
542 Sym *sym;
543 char filename[1];
544 } InlineFunc;
545
546 /* include file cache, used to find files faster and also to eliminate
547 inclusion if the include file is protected by #ifndef ... #endif */
548 typedef struct CachedInclude {
549 int ifndef_macro;
550 int once;
551 int hash_next; /* -1 if none */
552 char filename[1]; /* path specified in #include */
553 } CachedInclude;
554
555 #define CACHED_INCLUDES_HASH_SIZE 32
556
557 #ifdef CONFIG_TCC_ASM
558 typedef struct ExprValue {
559 uint64_t v;
560 Sym *sym;
561 } ExprValue;
562
563 #define MAX_ASM_OPERANDS 30
564 typedef struct ASMOperand {
565 int id; /* GCC 3 optionnal identifier (0 if number only supported */
566 char *constraint;
567 char asm_str[16]; /* computed asm string for operand */
568 SValue *vt; /* C value of the expression */
569 int ref_index; /* if >= 0, gives reference to a output constraint */
570 int input_index; /* if >= 0, gives reference to an input constraint */
571 int priority; /* priority, used to assign registers */
572 int reg; /* if >= 0, register number used for this operand */
573 int is_llong; /* true if double register value */
574 int is_memory; /* true if memory operand */
575 int is_rw; /* for '+' modifier */
576 } ASMOperand;
577 #endif
578
579 struct sym_attr {
580 unsigned long got_offset;
581 unsigned long plt_offset;
582 #ifdef TCC_TARGET_ARM
583 unsigned char plt_thumb_stub:1;
584 #endif
585 };
586
587 struct TCCState {
588
589 int verbose; /* if true, display some information during compilation */
590 int nostdinc; /* if true, no standard headers are added */
591 int nostdlib; /* if true, no standard libraries are added */
592 int nocommon; /* if true, do not use common symbols for .bss data */
593 int static_link; /* if true, static linking is performed */
594 int rdynamic; /* if true, all symbols are exported */
595 int symbolic; /* if true, resolve symbols in the current module first */
596 int alacarte_link; /* if true, only link in referenced objects from archive */
597
598 char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
599 char *soname; /* as specified on the command line (-soname) */
600 char *rpath; /* as specified on the command line (-Wl,-rpath=) */
601
602 /* output type, see TCC_OUTPUT_XXX */
603 int output_type;
604 /* output format, see TCC_OUTPUT_FORMAT_xxx */
605 int output_format;
606
607 /* C language options */
608 int char_is_unsigned;
609 int leading_underscore;
610 int ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */
611 int old_struct_init_code; /* use old algorithm to init array in struct when there is no '{' used.
612 Liuux 2.4.26 can't find initrd when compiled with a new algorithm */
613 int dollars_in_identifiers; /* allows '$' char in indentifiers */
614 int normalize_inc_dirs; /* remove non-existent or duplicate directories from include paths */
615
616 /* warning switches */
617 int warn_write_strings;
618 int warn_unsupported;
619 int warn_error;
620 int warn_none;
621 int warn_implicit_function_declaration;
622
623 /* compile with debug symbol (and use them if error during execution) */
624 int do_debug;
625 #ifdef CONFIG_TCC_BCHECK
626 /* compile with built-in memory and bounds checker */
627 int do_bounds_check;
628 #endif
629 #ifdef TCC_TARGET_ARM
630 enum float_abi float_abi; /* float ABI of the generated code*/
631 #endif
632
633 addr_t text_addr; /* address of text section */
634 int has_text_addr;
635
636 unsigned long section_align; /* section alignment */
637
638 char *init_symbol; /* symbols to call at load-time (not used currently) */
639 char *fini_symbol; /* symbols to call at unload-time (not used currently) */
640
641 #ifdef TCC_TARGET_I386
642 int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
643 #endif
644
645 /* array of all loaded dlls (including those referenced by loaded dlls) */
646 DLLReference **loaded_dlls;
647 int nb_loaded_dlls;
648
649 /* include paths */
650 char **include_paths;
651 int nb_include_paths;
652
653 char **sysinclude_paths;
654 int nb_sysinclude_paths;
655
656 /* library paths */
657 char **library_paths;
658 int nb_library_paths;
659
660 /* crt?.o object path */
661 char **crt_paths;
662 int nb_crt_paths;
663
664 /* error handling */
665 void *error_opaque;
666 void (*error_func)(void *opaque, const char *msg);
667 int error_set_jmp_enabled;
668 jmp_buf error_jmp_buf;
669 int nb_errors;
670
671 /* output file for preprocessing (-E) */
672 FILE *ppfp;
673 enum {
674 LINE_MACRO_OUTPUT_FORMAT_GCC,
675 LINE_MACRO_OUTPUT_FORMAT_NONE,
676 LINE_MACRO_OUTPUT_FORMAT_STD
677 } Pflag; /* -P switch */
678 char dflag; /* -dX value */
679
680 /* for -MD/-MF: collected dependencies for this compilation */
681 char **target_deps;
682 int nb_target_deps;
683
684 /* compilation */
685 BufferedFile *include_stack[INCLUDE_STACK_SIZE];
686 BufferedFile **include_stack_ptr;
687
688 int ifdef_stack[IFDEF_STACK_SIZE];
689 int *ifdef_stack_ptr;
690
691 /* included files enclosed with #ifndef MACRO */
692 int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
693 CachedInclude **cached_includes;
694 int nb_cached_includes;
695
696 /* #pragma pack stack */
697 int pack_stack[PACK_STACK_SIZE];
698 int *pack_stack_ptr;
699 char **pragma_libs;
700 int nb_pragma_libs;
701
702 /* inline functions are stored as token lists and compiled last
703 only if referenced */
704 struct InlineFunc **inline_fns;
705 int nb_inline_fns;
706
707 /* sections */
708 Section **sections;
709 int nb_sections; /* number of sections, including first dummy section */
710
711 Section **priv_sections;
712 int nb_priv_sections; /* number of private sections */
713
714 /* got & plt handling */
715 Section *got;
716 Section *plt;
717 struct sym_attr *sym_attrs;
718 int nb_sym_attrs;
719 /* give the correspondance from symtab indexes to dynsym indexes */
720 int *symtab_to_dynsym;
721
722 /* temporary dynamic symbol sections (for dll loading) */
723 Section *dynsymtab_section;
724 /* exported dynamic symbol section */
725 Section *dynsym;
726 /* copy of the gobal symtab_section variable */
727 Section *symtab;
728 /* tiny assembler state */
729 Sym *asm_labels;
730
731 #ifdef TCC_TARGET_PE
732 /* PE info */
733 int pe_subsystem;
734 unsigned pe_file_align;
735 unsigned pe_stack_size;
736 # ifdef TCC_TARGET_X86_64
737 Section *uw_pdata;
738 int uw_sym;
739 unsigned uw_offs;
740 # endif
741 #endif
742
743 #ifdef TCC_IS_NATIVE
744 const char *runtime_main;
745 /* for tcc_relocate */
746 void *runtime_mem;
747 # ifdef HAVE_SELINUX
748 void *write_mem;
749 unsigned long mem_size;
750 # endif
751 #endif
752
753 /* used by main and tcc_parse_args only */
754 struct filespec **files; /* files seen on command line */
755 int nb_files; /* number thereof */
756 int nb_libraries; /* number of libs thereof */
757 int filetype;
758 char *outfile; /* output filename */
759 char *option_m; /* only -m32/-m64 handled */
760 int print_search_dirs; /* option */
761 int option_r; /* option -r */
762 int do_bench; /* option -bench */
763 int gen_deps; /* option -MD */
764 char *deps_outfile; /* option -MF */
765 int option_pthread; /* -pthread option */
766 };
767
768 struct filespec {
769 char type, name[1];
770 };
771
772 /* The current value can be: */
773 #define VT_VALMASK 0x003f /* mask for value location, register or: */
774 #define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
775 #define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
776 #define VT_LOCAL 0x0032 /* offset on stack */
777 #define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
778 #define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
779 #define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
780 #define VT_REF 0x0040 /* value is pointer to structure rather than address */
781 #define VT_LVAL 0x0100 /* var is an lvalue */
782 #define VT_SYM 0x0200 /* a symbol value is added */
783 #define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
784 char/short stored in integer registers) */
785 #define VT_MUSTBOUND 0x0800 /* bound checking must be done before
786 dereferencing value */
787 #define VT_BOUNDED 0x8000 /* value is bounded. The address of the
788 bounding function call point is in vc */
789 #define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */
790 #define VT_LVAL_SHORT 0x2000 /* lvalue is a short */
791 #define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */
792 #define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
793
794 /* types */
795 #define VT_BTYPE 0x000f /* mask for basic type */
796 #define VT_INT 0 /* integer type */
797 #define VT_BYTE 1 /* signed byte type */
798 #define VT_SHORT 2 /* short type */
799 #define VT_VOID 3 /* void type */
800 #define VT_PTR 4 /* pointer */
801 #define VT_ENUM 5 /* enum definition */
802 #define VT_FUNC 6 /* function type */
803 #define VT_STRUCT 7 /* struct/union definition */
804 #define VT_FLOAT 8 /* IEEE float */
805 #define VT_DOUBLE 9 /* IEEE double */
806 #define VT_LDOUBLE 10 /* IEEE long double */
807 #define VT_BOOL 11 /* ISOC99 boolean type */
808 #define VT_LLONG 12 /* 64 bit integer */
809 #define VT_LONG 13 /* long integer (NEVER USED as type, only
810 during parsing) */
811 #define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */
812 #define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */
813 #define VT_UNSIGNED 0x0010 /* unsigned type */
814 #define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */
815 #define VT_BITFIELD 0x0040 /* bitfield modifier */
816 #define VT_CONSTANT 0x0800 /* const modifier */
817 #define VT_VOLATILE 0x1000 /* volatile modifier */
818 #define VT_DEFSIGN 0x2000 /* signed type */
819 #define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */
820
821 /* storage */
822 #define VT_EXTERN 0x00000080 /* extern definition */
823 #define VT_STATIC 0x00000100 /* static variable */
824 #define VT_TYPEDEF 0x00000200 /* typedef definition */
825 #define VT_INLINE 0x00000400 /* inline definition */
826 #define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */
827 #define VT_EXPORT 0x00008000 /* win32: data exported from dll */
828 #define VT_WEAK 0x00010000 /* weak symbol */
829 #define VT_TLS 0x00040000 /* thread-local storage */
830 #define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping
831 bitfield values, because bitfields never
832 have linkage and hence never have
833 visibility. */
834 #define VT_VIS_SIZE 2 /* We have four visibilities. */
835 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
836
837 #define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */
838
839
840 /* type mask (except storage) */
841 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
842 #define VT_TYPE (~(VT_STORAGE))
843
844 /* token values */
845
846 /* warning: the following compare tokens depend on i386 asm code */
847 #define TOK_ULT 0x92
848 #define TOK_UGE 0x93
849 #define TOK_EQ 0x94
850 #define TOK_NE 0x95
851 #define TOK_ULE 0x96
852 #define TOK_UGT 0x97
853 #define TOK_Nset 0x98
854 #define TOK_Nclear 0x99
855 #define TOK_LT 0x9c
856 #define TOK_GE 0x9d
857 #define TOK_LE 0x9e
858 #define TOK_GT 0x9f
859
860 #define TOK_LAND 0xa0
861 #define TOK_LOR 0xa1
862 #define TOK_DEC 0xa2
863 #define TOK_MID 0xa3 /* inc/dec, to void constant */
864 #define TOK_INC 0xa4
865 #define TOK_UDIV 0xb0 /* unsigned division */
866 #define TOK_UMOD 0xb1 /* unsigned modulo */
867 #define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */
868
869 /* tokens that carry values (in additional token string space / tokc) --> */
870 #define TOK_CCHAR 0xb3 /* char constant in tokc */
871 #define TOK_LCHAR 0xb4
872 #define TOK_CINT 0xb5 /* number in tokc */
873 #define TOK_CUINT 0xb6 /* unsigned int constant */
874 #define TOK_CLLONG 0xb7 /* long long constant */
875 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
876 #define TOK_STR 0xb9 /* pointer to string in tokc */
877 #define TOK_LSTR 0xba
878 #define TOK_CFLOAT 0xbb /* float constant */
879 #define TOK_CDOUBLE 0xbc /* double constant */
880 #define TOK_CLDOUBLE 0xbd /* long double constant */
881 #define TOK_PPNUM 0xbe /* preprocessor number */
882 #define TOK_PPSTR 0xbf /* preprocessor string */
883 #define TOK_LINENUM 0xc0 /* line number info */
884 /* <-- */
885
886 #define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */
887 #define TOK_ADDC1 0xc3 /* add with carry generation */
888 #define TOK_ADDC2 0xc4 /* add with carry use */
889 #define TOK_SUBC1 0xc5 /* add with carry generation */
890 #define TOK_SUBC2 0xc6 /* add with carry use */
891 #define TOK_ARROW 0xc7
892 #define TOK_DOTS 0xc8 /* three dots */
893 #define TOK_SHR 0xc9 /* unsigned shift right */
894 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
895 #define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */
896 #define TOK_NOSUBST 0xcc /* means following token has already been pp'd */
897
898 #define TOK_SHL 0x01 /* shift left */
899 #define TOK_SAR 0x02 /* signed shift right */
900
901 /* assignement operators : normal operator or 0x80 */
902 #define TOK_A_MOD 0xa5
903 #define TOK_A_AND 0xa6
904 #define TOK_A_MUL 0xaa
905 #define TOK_A_ADD 0xab
906 #define TOK_A_SUB 0xad
907 #define TOK_A_DIV 0xaf
908 #define TOK_A_XOR 0xde
909 #define TOK_A_OR 0xfc
910 #define TOK_A_SHL 0x81
911 #define TOK_A_SAR 0x82
912
913 #ifndef offsetof
914 #define offsetof(type, field) ((size_t) &((type *)0)->field)
915 #endif
916
917 #ifndef countof
918 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
919 #endif
920
921 #define TOK_EOF (-1) /* end of file */
922 #define TOK_LINEFEED 10 /* line feed */
923
924 /* all identificators and strings have token above that */
925 #define TOK_IDENT 256
926
927 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
928 #define TOK_ASM_int TOK_INT
929 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
930 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
931 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
932
933 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
934 /* only used for i386 asm opcodes definitions */
935 #define DEF_BWL(x) \
936 DEF(TOK_ASM_ ## x ## b, #x "b") \
937 DEF(TOK_ASM_ ## x ## w, #x "w") \
938 DEF(TOK_ASM_ ## x ## l, #x "l") \
939 DEF(TOK_ASM_ ## x, #x)
940 #define DEF_WL(x) \
941 DEF(TOK_ASM_ ## x ## w, #x "w") \
942 DEF(TOK_ASM_ ## x ## l, #x "l") \
943 DEF(TOK_ASM_ ## x, #x)
944 #ifdef TCC_TARGET_X86_64
945 # define DEF_BWLQ(x) \
946 DEF(TOK_ASM_ ## x ## b, #x "b") \
947 DEF(TOK_ASM_ ## x ## w, #x "w") \
948 DEF(TOK_ASM_ ## x ## l, #x "l") \
949 DEF(TOK_ASM_ ## x ## q, #x "q") \
950 DEF(TOK_ASM_ ## x, #x)
951 # define DEF_WLQ(x) \
952 DEF(TOK_ASM_ ## x ## w, #x "w") \
953 DEF(TOK_ASM_ ## x ## l, #x "l") \
954 DEF(TOK_ASM_ ## x ## q, #x "q") \
955 DEF(TOK_ASM_ ## x, #x)
956 # define DEF_BWLX DEF_BWLQ
957 # define DEF_WLX DEF_WLQ
958 /* number of sizes + 1 */
959 # define NBWLX 5
960 #else
961 # define DEF_BWLX DEF_BWL
962 # define DEF_WLX DEF_WL
963 /* number of sizes + 1 */
964 # define NBWLX 4
965 #endif
966
967 #define DEF_FP1(x) \
968 DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
969 DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
970 DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
971 DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
972
973 #define DEF_FP(x) \
974 DEF(TOK_ASM_ ## f ## x, "f" #x ) \
975 DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
976 DEF_FP1(x)
977
978 #define DEF_ASMTEST(x,suffix) \
979 DEF_ASM(x ## o ## suffix) \
980 DEF_ASM(x ## no ## suffix) \
981 DEF_ASM(x ## b ## suffix) \
982 DEF_ASM(x ## c ## suffix) \
983 DEF_ASM(x ## nae ## suffix) \
984 DEF_ASM(x ## nb ## suffix) \
985 DEF_ASM(x ## nc ## suffix) \
986 DEF_ASM(x ## ae ## suffix) \
987 DEF_ASM(x ## e ## suffix) \
988 DEF_ASM(x ## z ## suffix) \
989 DEF_ASM(x ## ne ## suffix) \
990 DEF_ASM(x ## nz ## suffix) \
991 DEF_ASM(x ## be ## suffix) \
992 DEF_ASM(x ## na ## suffix) \
993 DEF_ASM(x ## nbe ## suffix) \
994 DEF_ASM(x ## a ## suffix) \
995 DEF_ASM(x ## s ## suffix) \
996 DEF_ASM(x ## ns ## suffix) \
997 DEF_ASM(x ## p ## suffix) \
998 DEF_ASM(x ## pe ## suffix) \
999 DEF_ASM(x ## np ## suffix) \
1000 DEF_ASM(x ## po ## suffix) \
1001 DEF_ASM(x ## l ## suffix) \
1002 DEF_ASM(x ## nge ## suffix) \
1003 DEF_ASM(x ## nl ## suffix) \
1004 DEF_ASM(x ## ge ## suffix) \
1005 DEF_ASM(x ## le ## suffix) \
1006 DEF_ASM(x ## ng ## suffix) \
1007 DEF_ASM(x ## nle ## suffix) \
1008 DEF_ASM(x ## g ## suffix)
1009
1010 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1011
1012 enum tcc_token {
1013 TOK_LAST = TOK_IDENT - 1
1014 #define DEF(id, str) ,id
1015 #include "tcctok.h"
1016 #undef DEF
1017 };
1018
1019 #define TOK_UIDENT TOK_DEFINE
1020
1021 /* space exlcuding newline */
1022 static inline int is_space(int ch)
1023 {
1024 return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1025 }
1026
1027 static inline int isid(int c)
1028 {
1029 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1030 }
1031
1032 static inline int isnum(int c)
1033 {
1034 return c >= '0' && c <= '9';
1035 }
1036
1037 static inline int isoct(int c)
1038 {
1039 return c >= '0' && c <= '7';
1040 }
1041
1042 static inline int toup(int c)
1043 {
1044 return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1045 }
1046
1047 #ifndef PUB_FUNC
1048 # define PUB_FUNC
1049 #endif
1050
1051 #ifdef ONE_SOURCE
1052 #define ST_INLN static inline
1053 #define ST_FUNC static
1054 #define ST_DATA static
1055 #else
1056 #define ST_INLN
1057 #define ST_FUNC
1058 #define ST_DATA extern
1059 #endif
1060
1061 /* ------------ libtcc.c ------------ */
1062
1063 /* use GNU C extensions */
1064 ST_DATA int gnu_ext;
1065 /* use Tiny C extensions */
1066 ST_DATA int tcc_ext;
1067 /* XXX: get rid of this ASAP */
1068 ST_DATA struct TCCState *tcc_state;
1069
1070 /* public functions currently used by the tcc main function */
1071 ST_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1072 ST_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1073 ST_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1074 PUB_FUNC char *tcc_basename(const char *name);
1075 PUB_FUNC char *tcc_fileextension (const char *name);
1076
1077 #ifndef MEM_DEBUG
1078 PUB_FUNC void tcc_free(void *ptr);
1079 PUB_FUNC void *tcc_malloc(unsigned long size);
1080 PUB_FUNC void *tcc_mallocz(unsigned long size);
1081 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1082 PUB_FUNC char *tcc_strdup(const char *str);
1083 #else
1084 #define tcc_free(ptr) tcc_free_debug(ptr)
1085 #define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__)
1086 #define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__)
1087 #define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1088 #define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__)
1089 PUB_FUNC void tcc_free_debug(void *ptr);
1090 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1091 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1092 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1093 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1094 #endif
1095
1096 #define free(p) use_tcc_free(p)
1097 #define malloc(s) use_tcc_malloc(s)
1098 #define realloc(p, s) use_tcc_realloc(p, s)
1099 #undef strdup
1100 #define strdup(s) use_tcc_strdup(s)
1101 PUB_FUNC void tcc_memstats(int bench);
1102 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1103 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1104 PUB_FUNC void tcc_warning(const char *fmt, ...);
1105
1106 /* other utilities */
1107 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1108 ST_FUNC void dynarray_reset(void *pp, int *n);
1109 ST_INLN void cstr_ccat(CString *cstr, int ch);
1110 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1111 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1112 ST_FUNC void cstr_new(CString *cstr);
1113 ST_FUNC void cstr_free(CString *cstr);
1114 ST_FUNC void cstr_reset(CString *cstr);
1115
1116 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1117 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1118 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1119 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1120 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1121
1122 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1123 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1124 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1125 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1126
1127 ST_INLN void sym_free(Sym *sym);
1128 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1129 ST_FUNC Sym *sym_find2(Sym *s, int v);
1130 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1131 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1132 ST_INLN Sym *struct_find(int v);
1133 ST_INLN Sym *sym_find(int v);
1134 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1135
1136 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1137 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1138 ST_FUNC void tcc_close(void);
1139
1140 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1141 /* flags: */
1142 #define AFF_PRINT_ERROR 0x10 /* print error if file not found */
1143 #define AFF_REFERENCED_DLL 0x20 /* load a referenced dll from another dll */
1144 #define AFF_PREPROCESS 0x40 /* preprocess file */
1145 /* combined with: */
1146 #define AFF_TYPE_NONE 0
1147 #define AFF_TYPE_C 1
1148 #define AFF_TYPE_ASM 2
1149 #define AFF_TYPE_ASMPP 3
1150 #define AFF_TYPE_BIN 4
1151 #define AFF_TYPE_LIB 5
1152
1153 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1154
1155 #ifndef TCC_TARGET_PE
1156 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1157 #endif
1158
1159 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1160 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1161
1162 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1163 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1164 PUB_FUNC void tcc_set_environment(TCCState *s);
1165
1166 /* ------------ tccpp.c ------------ */
1167
1168 ST_DATA struct BufferedFile *file;
1169 ST_DATA int ch, tok;
1170 ST_DATA CValue tokc;
1171 ST_DATA const int *macro_ptr;
1172 ST_DATA int parse_flags;
1173 ST_DATA int tok_flags;
1174 ST_DATA CString tokcstr; /* current parsed string, if any */
1175
1176 /* display benchmark infos */
1177 ST_DATA int total_lines;
1178 ST_DATA int total_bytes;
1179 ST_DATA int tok_ident;
1180 ST_DATA TokenSym **table_ident;
1181
1182 #define TOK_FLAG_BOL 0x0001 /* beginning of line before */
1183 #define TOK_FLAG_BOF 0x0002 /* beginning of file before */
1184 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1185 #define TOK_FLAG_EOF 0x0008 /* end of file */
1186
1187 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1188 #define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
1189 #define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
1190 token. line feed is also
1191 returned at eof */
1192 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1193 #define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
1194 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1195 #define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */
1196
1197 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1198 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1199 ST_FUNC void begin_macro(TokenString *str, int alloc);
1200 ST_FUNC void end_macro(void);
1201 ST_FUNC void save_parse_state(ParseState *s);
1202 ST_FUNC void restore_parse_state(ParseState *s);
1203 ST_INLN void tok_str_new(TokenString *s);
1204 ST_FUNC TokenString *tok_str_alloc(void);
1205 ST_FUNC void tok_str_free(int *str);
1206 ST_FUNC void tok_str_add(TokenString *s, int t);
1207 ST_FUNC void tok_str_add_tok(TokenString *s);
1208 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1209 ST_FUNC void define_undef(Sym *s);
1210 ST_INLN Sym *define_find(int v);
1211 ST_FUNC void free_defines(Sym *b);
1212 ST_FUNC Sym *label_find(int v);
1213 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1214 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1215 ST_FUNC void parse_define(void);
1216 ST_FUNC void preprocess(int is_bof);
1217 ST_FUNC void next_nomacro(void);
1218 ST_FUNC void next(void);
1219 ST_INLN void unget_tok(int last_tok);
1220 ST_FUNC void preprocess_init(TCCState *s1);
1221 ST_FUNC void preprocess_new(void);
1222 ST_FUNC void preprocess_delete(void);
1223 ST_FUNC int tcc_preprocess(TCCState *s1);
1224 ST_FUNC void skip(int c);
1225 ST_FUNC NORETURN void expect(const char *msg);
1226
1227 /* ------------ tccgen.c ------------ */
1228
1229 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1230 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1231 #ifdef CONFIG_TCC_ASM
1232 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1233 #endif
1234 #ifdef CONFIG_TCC_BCHECK
1235 /* bound check related sections */
1236 ST_DATA Section *bounds_section; /* contains global data bound description */
1237 ST_DATA Section *lbounds_section; /* contains local data bound description */
1238 #endif
1239 /* symbol sections */
1240 ST_DATA Section *symtab_section, *strtab_section;
1241 /* debug sections */
1242 ST_DATA Section *stab_section, *stabstr_section;
1243
1244 #define SYM_POOL_NB (8192 / sizeof(Sym))
1245 ST_DATA Sym *sym_free_first;
1246 ST_DATA void **sym_pools;
1247 ST_DATA int nb_sym_pools;
1248
1249 ST_DATA Sym *global_stack;
1250 ST_DATA Sym *local_stack;
1251 ST_DATA Sym *local_label_stack;
1252 ST_DATA Sym *global_label_stack;
1253 ST_DATA Sym *define_stack;
1254 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1255 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop;
1256 #define vstack (__vstack + 1)
1257 ST_DATA int rsym, anon_sym, ind, loc;
1258
1259 ST_DATA int const_wanted; /* true if constant wanted */
1260 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1261 ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
1262 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1263 ST_DATA int func_var; /* true if current function is variadic */
1264 ST_DATA int func_vc;
1265 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1266 ST_DATA const char *funcname;
1267
1268 ST_FUNC void check_vstack(void);
1269 ST_INLN int is_float(int t);
1270 ST_FUNC int ieee_finite(double d);
1271 ST_FUNC void test_lvalue(void);
1272 ST_FUNC void swap(int *p, int *q);
1273 ST_FUNC void vpushi(int v);
1274 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1275 ST_FUNC void vset(CType *type, int r, int v);
1276 ST_FUNC void vswap(void);
1277 ST_FUNC void vpush_global_sym(CType *type, int v);
1278 ST_FUNC void vrote(SValue *e, int n);
1279 ST_FUNC void vrott(int n);
1280 ST_FUNC void vrotb(int n);
1281 #ifdef TCC_TARGET_ARM
1282 ST_FUNC int get_reg_ex(int rc, int rc2);
1283 ST_FUNC void lexpand_nr(void);
1284 #endif
1285 ST_FUNC void vpushv(SValue *v);
1286 ST_FUNC void save_reg(int r);
1287 ST_FUNC int get_reg(int rc);
1288 ST_FUNC void save_regs(int n);
1289 ST_FUNC void gaddrof(void);
1290 ST_FUNC int gv(int rc);
1291 ST_FUNC void gv2(int rc1, int rc2);
1292 ST_FUNC void vpop(void);
1293 ST_FUNC void gen_op(int op);
1294 ST_FUNC int type_size(CType *type, int *a);
1295 ST_FUNC void mk_pointer(CType *type);
1296 ST_FUNC void vstore(void);
1297 ST_FUNC void inc(int post, int c);
1298 ST_FUNC void parse_asm_str(CString *astr);
1299 ST_FUNC int lvalue_type(int t);
1300 ST_FUNC void indir(void);
1301 ST_FUNC void unary(void);
1302 ST_FUNC void expr_prod(void);
1303 ST_FUNC void expr_sum(void);
1304 ST_FUNC void gexpr(void);
1305 ST_FUNC int expr_const(void);
1306 ST_FUNC void gen_inline_functions(void);
1307 ST_FUNC void decl(int l);
1308 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1309 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1310 #endif
1311 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1312 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1313 #endif
1314
1315 /* ------------ tccelf.c ------------ */
1316
1317 #define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */
1318 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1319 #define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */
1320
1321 #define ARMAG "!<arch>\012" /* For COFF and a.out archives */
1322
1323 typedef struct {
1324 unsigned int n_strx; /* index into string table of name */
1325 unsigned char n_type; /* type of symbol */
1326 unsigned char n_other; /* misc info (usually empty) */
1327 unsigned short n_desc; /* description field */
1328 unsigned int n_value; /* value of symbol */
1329 } Stab_Sym;
1330
1331 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);
1332
1333 ST_FUNC int put_elf_str(Section *s, const char *sym);
1334 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1335 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1336 ST_FUNC int find_elf_sym(Section *s, const char *name);
1337 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1338 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1339
1340 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1341 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1342 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1343 ST_FUNC void put_stabd(int type, int other, int desc);
1344
1345 ST_FUNC void relocate_common_syms(void);
1346 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1347 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1348 ST_FUNC void relocate_plt(TCCState *s1);
1349
1350 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1351 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1352 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1353 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1354
1355 ST_FUNC void build_got_entries(TCCState *s1);
1356 ST_FUNC void tcc_add_runtime(TCCState *s1);
1357
1358 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1359 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1360 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1361 #endif
1362
1363 #ifndef TCC_TARGET_PE
1364 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1365 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1366 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1367 ST_FUNC void minp(void);
1368 ST_INLN void inp(void);
1369 ST_FUNC int handle_eob(void);
1370 #endif
1371
1372 /* ------------ xxx-gen.c ------------ */
1373
1374 ST_DATA const int reg_classes[NB_REGS];
1375
1376 ST_FUNC void gsym_addr(int t, int a);
1377 ST_FUNC void gsym(int t);
1378 ST_FUNC void load(int r, SValue *sv);
1379 ST_FUNC void store(int r, SValue *v);
1380 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1381 ST_FUNC void gfunc_call(int nb_args);
1382 ST_FUNC void gfunc_prolog(CType *func_type);
1383 ST_FUNC void gfunc_epilog(void);
1384 ST_FUNC int gjmp(int t);
1385 ST_FUNC void gjmp_addr(int a);
1386 ST_FUNC int gtst(int inv, int t);
1387 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1388 ST_FUNC void gtst_addr(int inv, int a);
1389 #else
1390 #define gtst_addr(inv, a) gsym_addr(gtst(inv, 0), a)
1391 #endif
1392 ST_FUNC void gen_opi(int op);
1393 ST_FUNC void gen_opf(int op);
1394 ST_FUNC void gen_cvt_ftoi(int t);
1395 ST_FUNC void gen_cvt_ftof(int t);
1396 ST_FUNC void ggoto(void);
1397 #ifndef TCC_TARGET_C67
1398 ST_FUNC void o(unsigned int c);
1399 #endif
1400 #ifndef TCC_TARGET_ARM
1401 ST_FUNC void gen_cvt_itof(int t);
1402 #endif
1403 ST_FUNC void gen_vla_sp_save(int addr);
1404 ST_FUNC void gen_vla_sp_restore(int addr);
1405 ST_FUNC void gen_vla_alloc(CType *type, int align);
1406
1407 static inline uint16_t read16le(unsigned char *p)
1408 {
1409 return p[0] | (uint16_t)p[1] << 8;
1410 }
1411
1412 static inline void write16le(unsigned char *p, uint16_t x)
1413 {
1414 p[0] = x & 255;
1415 p[1] = x >> 8 & 255;
1416 }
1417
1418 static inline uint32_t read32le(unsigned char *p)
1419 {
1420 return (p[0] | (uint32_t)p[1] << 8 |
1421 (uint32_t)p[2] << 16 | (uint32_t)p[3] << 24);
1422 }
1423
1424 static inline void write32le(unsigned char *p, uint32_t x)
1425 {
1426 p[0] = x & 255;
1427 p[1] = x >> 8 & 255;
1428 p[2] = x >> 16 & 255;
1429 p[3] = x >> 24 & 255;
1430 }
1431
1432 static inline uint64_t read64le(unsigned char *p)
1433 {
1434 return (p[0] | (uint64_t)p[1] << 8 |
1435 (uint64_t)p[2] << 16 | (uint64_t)p[3] << 24 |
1436 (uint64_t)p[4] << 32 | (uint64_t)p[5] << 40 |
1437 (uint64_t)p[6] << 48 | (uint64_t)p[7] << 56);
1438 }
1439
1440 static inline void write64le(unsigned char *p, uint64_t x)
1441 {
1442 p[0] = x & 255;
1443 p[1] = x >> 8 & 255;
1444 p[2] = x >> 16 & 255;
1445 p[3] = x >> 24 & 255;
1446 p[4] = x >> 32 & 255;
1447 p[5] = x >> 40 & 255;
1448 p[6] = x >> 48 & 255;
1449 p[7] = x >> 56 & 255;
1450 }
1451
1452 /* ------------ i386-gen.c ------------ */
1453 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1454 ST_FUNC void g(int c);
1455 ST_FUNC int oad(int c, int s);
1456 ST_FUNC void gen_le16(int c);
1457 ST_FUNC void gen_le32(int c);
1458 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1459 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1460 #endif
1461
1462 #ifdef CONFIG_TCC_BCHECK
1463 ST_FUNC void gen_bounded_ptr_add(void);
1464 ST_FUNC void gen_bounded_ptr_deref(void);
1465 #endif
1466
1467 /* ------------ x86_64-gen.c ------------ */
1468 #ifdef TCC_TARGET_X86_64
1469 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1470 ST_FUNC void gen_opl(int op);
1471 #endif
1472
1473 /* ------------ arm-gen.c ------------ */
1474 #ifdef TCC_TARGET_ARM
1475 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1476 ST_FUNC char *default_elfinterp(struct TCCState *s);
1477 #endif
1478 ST_FUNC void arm_init(struct TCCState *s);
1479 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1480 ST_FUNC void gen_cvt_itof1(int t);
1481 #endif
1482
1483 /* ------------ arm64-gen.c ------------ */
1484 #ifdef TCC_TARGET_ARM64
1485 ST_FUNC void gen_cvt_sxtw(void);
1486 ST_FUNC void gen_opl(int op);
1487 ST_FUNC void greturn(void);
1488 ST_FUNC void gen_va_start(void);
1489 ST_FUNC void gen_va_arg(CType *t);
1490 ST_FUNC void gen_clear_cache(void);
1491 #endif
1492
1493 /* ------------ c67-gen.c ------------ */
1494 #ifdef TCC_TARGET_C67
1495 #endif
1496
1497 /* ------------ tcccoff.c ------------ */
1498
1499 #ifdef TCC_TARGET_COFF
1500 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1501 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1502 #endif
1503
1504 /* ------------ tccasm.c ------------ */
1505 ST_FUNC void asm_instr(void);
1506 ST_FUNC void asm_global_instr(void);
1507 #ifdef CONFIG_TCC_ASM
1508 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1509 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1510 ST_FUNC int asm_int_expr(TCCState *s1);
1511 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1512 /* ------------ i386-asm.c ------------ */
1513 ST_FUNC void gen_expr32(ExprValue *pe);
1514 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1515 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1516 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1517 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1518 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1519 #endif
1520
1521 /* ------------ tccpe.c -------------- */
1522 #ifdef TCC_TARGET_PE
1523 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1524 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1525 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1526 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1527 #ifdef TCC_TARGET_X86_64
1528 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1529 #endif
1530 /* symbol properties stored in Elf32_Sym->st_other */
1531 # define ST_PE_EXPORT 0x10
1532 # define ST_PE_IMPORT 0x20
1533 # define ST_PE_STDCALL 0x40
1534 #endif
1535
1536 /* ------------ tccrun.c ----------------- */
1537 #ifdef TCC_IS_NATIVE
1538 #ifdef CONFIG_TCC_STATIC
1539 #define RTLD_LAZY 0x001
1540 #define RTLD_NOW 0x002
1541 #define RTLD_GLOBAL 0x100
1542 #define RTLD_DEFAULT NULL
1543 /* dummy function for profiling */
1544 ST_FUNC void *dlopen(const char *filename, int flag);
1545 ST_FUNC void dlclose(void *p);
1546 ST_FUNC const char *dlerror(void);
1547 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1548 #elif !defined _WIN32
1549 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1550 #endif
1551
1552 #ifdef CONFIG_TCC_BACKTRACE
1553 ST_DATA int rt_num_callers;
1554 ST_DATA const char **rt_bound_error_msg;
1555 ST_DATA void *rt_prog_main;
1556 ST_FUNC void tcc_set_num_callers(int n);
1557 #endif
1558 #endif
1559
1560 /********************************************************/
1561 #undef ST_DATA
1562 #ifdef ONE_SOURCE
1563 #define ST_DATA static
1564 #else
1565 #define ST_DATA
1566 #endif
1567 /********************************************************/
1568 #endif /* _TCC_H */
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