tcc.h

   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
  38 #ifdef _WIN32
  39 #include <windows.h>
  40 #include <sys/timeb.h>
  41 #include <io.h> /* open, close etc. */
  42 #include <direct.h> /* getcwd */
  43 #define inline __inline
  44 #define inp next_inp
  45 #ifdef _MSC_VER
  46 #define __aligned(n) __declspec(align(n))
  47 #endif
  48 #ifdef _WIN64
  49 #define uplong unsigned long long
  50 #endif
  51 #ifdef __BORLANDC__
  52 #define _timeb timeb
  53 #define _ftime ftime
  54 #endif
  55 #endif
  56
  57 #ifndef _WIN32
  58 #include <unistd.h>
  59 #include <sys/time.h>
  60 #include <sys/mman.h>
  61 #endif
  62
  63 #ifndef uplong
  64 #define uplong unsigned long
  65 #endif
  66
  67 #ifndef __aligned
  68 #define __aligned(n) __attribute__((aligned(n)))
  69 #endif
  70
  71 #ifndef PAGESIZE
  72 #define PAGESIZE 4096
  73 #endif
  74
  75 #include "elf.h"
  76 #include "stab.h"
  77
  78 #ifndef O_BINARY
  79 #define O_BINARY 0
  80 #endif
  81
  82 #include "libtcc.h"
  83
  84 /* parser debug */
  85 //#define PARSE_DEBUG
  86 /* preprocessor debug */
  87 //#define PP_DEBUG
  88 /* include file debug */
  89 //#define INC_DEBUG
  90
  91 //#define MEM_DEBUG
  92
  93 /* assembler debug */
  94 //#define ASM_DEBUG
  95
  96 /* target selection */
  97 //#define TCC_TARGET_I386   /* i386 code generator */
  98 //#define TCC_TARGET_ARM    /* ARMv4 code generator */
  99 //#define TCC_TARGET_C67    /* TMS320C67xx code generator */
 100 //#define TCC_TARGET_X86_64 /* x86-64 code generator */
 101
 102 /* default target is I386 */
 103 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 104     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 105 #define TCC_TARGET_I386
 106 #endif
 107
 108 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 109     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 110 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 111 #endif
 112
 113 #if defined(_WIN32) && !defined(TCC_TARGET_PE)
 114 #define CONFIG_TCC_STATIC
 115 #endif
 116
 117 /* define it to include assembler support */
 118 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 119 #define CONFIG_TCC_ASM
 120 #endif
 121
 122 /* object format selection */
 123 #if defined(TCC_TARGET_C67)
 124 #define TCC_TARGET_COFF
 125 #endif
 126
 127 #define CONFIG_TCC_BACKTRACE
 128
 129 #define FALSE 0
 130 #define false 0
 131 #define TRUE 1
 132 #define true 1
 133 typedef int BOOL;
 134
 135 /* path to find crt1.o, crti.o and crtn.o. Only needed when generating
 136    executables or dlls */
 137 #define CONFIG_TCC_CRT_PREFIX CONFIG_SYSROOT "/usr/lib"
 138
 139 #define INCLUDE_STACK_SIZE  32
 140 #define IFDEF_STACK_SIZE    64
 141 #define VSTACK_SIZE         256
 142 #define STRING_MAX_SIZE     1024
 143 #define PACK_STACK_SIZE     8
 144
 145 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 146 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 147 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 148
 149 /* token symbol management */
 150 typedef struct TokenSym {
 151     struct TokenSym *hash_next;
 152     struct Sym *sym_define; /* direct pointer to define */
 153     struct Sym *sym_label; /* direct pointer to label */
 154     struct Sym *sym_struct; /* direct pointer to structure */
 155     struct Sym *sym_identifier; /* direct pointer to identifier */
 156     int tok; /* token number */
 157     int len;
 158     char str[1];
 159 } TokenSym;
 160
 161 #ifdef TCC_TARGET_PE
 162 typedef unsigned short nwchar_t;
 163 #else
 164 typedef int nwchar_t;
 165 #endif
 166
 167 typedef struct CString {
 168     int size; /* size in bytes */
 169     void *data; /* either 'char *' or 'nwchar_t *' */
 170     int size_allocated;
 171     void *data_allocated; /* if non NULL, data has been malloced */
 172 } CString;
 173
 174 /* type definition */
 175 typedef struct CType {
 176     int t;
 177     struct Sym *ref;
 178 } CType;
 179
 180 /* constant value */
 181 typedef union CValue {
 182     long double ld;
 183     double d;
 184     float f;
 185     int i;
 186     unsigned int ui;
 187     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 188     long long ll;
 189     unsigned long long ull;
 190     struct CString *cstr;
 191     void *ptr;
 192     int tab[1];
 193 } CValue;
 194
 195 /* value on stack */
 196 typedef struct SValue {
 197     CType type;      /* type */
 198     unsigned short r;      /* register + flags */
 199     unsigned short r2;     /* second register, used for 'long long'
 200                               type. If not used, set to VT_CONST */
 201     CValue c;              /* constant, if VT_CONST */
 202     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 203 } SValue;
 204
 205 /* symbol management */
 206 typedef struct Sym {
 207     int v;    /* symbol token */
 208     long r;    /* associated register */
 209     union {
 210         long c;    /* associated number */
 211         int *d;   /* define token stream */
 212     };
 213     CType type;    /* associated type */
 214     union {
 215         struct Sym *next; /* next related symbol */
 216         long jnext; /* next jump label */
 217     };
 218     struct Sym *prev; /* prev symbol in stack */
 219     struct Sym *prev_tok; /* previous symbol for this token */
 220 } Sym;
 221
 222 /* section definition */
 223 /* XXX: use directly ELF structure for parameters ? */
 224 /* special flag to indicate that the section should not be linked to
 225    the other ones */
 226 #define SHF_PRIVATE 0x80000000
 227
 228 /* special flag, too */
 229 #define SECTION_ABS ((void *)1)
 230
 231 typedef struct Section {
 232     unsigned long data_offset; /* current data offset */
 233     unsigned char *data;       /* section data */
 234     unsigned long data_allocated; /* used for realloc() handling */
 235     int sh_name;             /* elf section name (only used during output) */
 236     int sh_num;              /* elf section number */
 237     int sh_type;             /* elf section type */
 238     int sh_flags;            /* elf section flags */
 239     int sh_info;             /* elf section info */
 240     int sh_addralign;        /* elf section alignment */
 241     int sh_entsize;          /* elf entry size */
 242     unsigned long sh_size;   /* section size (only used during output) */
 243     unsigned long sh_addr;      /* address at which the section is relocated */
 244     unsigned long sh_offset;    /* file offset */
 245     int nb_hashed_syms;      /* used to resize the hash table */
 246     struct Section *link;    /* link to another section */
 247     struct Section *reloc;   /* corresponding section for relocation, if any */
 248     struct Section *hash;     /* hash table for symbols */
 249     struct Section *next;
 250     char name[1];           /* section name */
 251 } Section;
 252
 253 typedef struct DLLReference {
 254     int level;
 255     void *handle;
 256     char name[1];
 257 } DLLReference;
 258
 259 /* GNUC attribute definition */
 260 typedef struct AttributeDef {
 261     int aligned;
 262     int packed;
 263     Section *section;
 264     int func_attr; /* calling convention, exports, ... */
 265 } AttributeDef;
 266
 267 /* -------------------------------------------------- */
 268 /* gr: wrappers for casting sym->r for other purposes */
 269 typedef struct {
 270     unsigned
 271       func_call : 8,
 272       func_args : 8,
 273       func_export : 1,
 274       func_import : 1;
 275 } func_attr_t;
 276
 277 #define FUNC_CALL(r) (((func_attr_t*)&(r))->func_call)
 278 #define FUNC_EXPORT(r) (((func_attr_t*)&(r))->func_export)
 279 #define FUNC_IMPORT(r) (((func_attr_t*)&(r))->func_import)
 280 #define FUNC_ARGS(r) (((func_attr_t*)&(r))->func_args)
 281 /* -------------------------------------------------- */
 282
 283 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 284 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 285 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 286
 287 /* stored in 'Sym.c' field */
 288 #define FUNC_NEW       1 /* ansi function prototype */
 289 #define FUNC_OLD       2 /* old function prototype */
 290 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 291
 292 /* stored in 'Sym.r' field */
 293 #define FUNC_CDECL     0 /* standard c call */
 294 #define FUNC_STDCALL   1 /* pascal c call */
 295 #define FUNC_FASTCALL1 2 /* first param in %eax */
 296 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 297 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 298 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 299
 300 /* field 'Sym.t' for macros */
 301 #define MACRO_OBJ      0 /* object like macro */
 302 #define MACRO_FUNC     1 /* function like macro */
 303
 304 /* field 'Sym.r' for C labels */
 305 #define LABEL_DEFINED  0 /* label is defined */
 306 #define LABEL_FORWARD  1 /* label is forward defined */
 307 #define LABEL_DECLARED 2 /* label is declared but never used */
 308
 309 /* type_decl() types */
 310 #define TYPE_ABSTRACT  1 /* type without variable */
 311 #define TYPE_DIRECT    2 /* type with variable */
 312
 313 #define IO_BUF_SIZE 8192
 314
 315 typedef struct BufferedFile {
 316     uint8_t *buf_ptr;
 317     uint8_t *buf_end;
 318     int fd;
 319     int line_num;    /* current line number - here to simplify code */
 320     int ifndef_macro;  /* #ifndef macro / #endif search */
 321     int ifndef_macro_saved; /* saved ifndef_macro */
 322     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 323     char inc_type;          /* type of include */
 324     char inc_filename[512]; /* filename specified by the user */
 325     char filename[1024];    /* current filename - here to simplify code */
 326     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 327 } BufferedFile;
 328
 329 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 330 #define CH_EOF   (-1)   /* end of file */
 331
 332 /* parsing state (used to save parser state to reparse part of the
 333    source several times) */
 334 typedef struct ParseState {
 335     int *macro_ptr;
 336     int line_num;
 337     int tok;
 338     CValue tokc;
 339 } ParseState;
 340
 341 /* used to record tokens */
 342 typedef struct TokenString {
 343     int *str;
 344     int len;
 345     int allocated_len;
 346     int last_line_num;
 347 } TokenString;
 348
 349 /* inline functions */
 350 typedef struct InlineFunc {
 351     int *token_str;
 352     Sym *sym;
 353     char filename[1];
 354 } InlineFunc;
 355
 356 /* include file cache, used to find files faster and also to eliminate
 357    inclusion if the include file is protected by #ifndef ... #endif */
 358 typedef struct CachedInclude {
 359     int ifndef_macro;
 360     int hash_next; /* -1 if none */
 361     char type; /* '"' or '>' to give include type */
 362     char filename[1]; /* path specified in #include */
 363 } CachedInclude;
 364
 365 #define CACHED_INCLUDES_HASH_SIZE 512
 366
 367 #ifdef CONFIG_TCC_ASM
 368 typedef struct ExprValue {
 369     uint32_t v;
 370     Sym *sym;
 371 } ExprValue;
 372
 373 #define MAX_ASM_OPERANDS 30
 374 typedef struct ASMOperand {
 375     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 376     char *constraint;
 377     char asm_str[16]; /* computed asm string for operand */
 378     SValue *vt; /* C value of the expression */
 379     int ref_index; /* if >= 0, gives reference to a output constraint */
 380     int input_index; /* if >= 0, gives reference to an input constraint */
 381     int priority; /* priority, used to assign registers */
 382     int reg; /* if >= 0, register number used for this operand */
 383     int is_llong; /* true if double register value */
 384     int is_memory; /* true if memory operand */
 385     int is_rw;     /* for '+' modifier */
 386 } ASMOperand;
 387 #endif
 388
 389 struct TCCState {
 390     int output_type;
 391
 392     BufferedFile **include_stack_ptr;
 393     int *ifdef_stack_ptr;
 394
 395     /* include file handling */
 396     char **include_paths;
 397     int nb_include_paths;
 398     char **sysinclude_paths;
 399     int nb_sysinclude_paths;
 400     CachedInclude **cached_includes;
 401     int nb_cached_includes;
 402
 403     char **library_paths;
 404     int nb_library_paths;
 405
 406     /* array of all loaded dlls (including those referenced by loaded
 407        dlls) */
 408     DLLReference **loaded_dlls;
 409     int nb_loaded_dlls;
 410
 411     /* sections */
 412     Section **sections;
 413     int nb_sections; /* number of sections, including first dummy section */
 414
 415     Section **priv_sections;
 416     int nb_priv_sections; /* number of private sections */
 417
 418     /* got handling */
 419     Section *got;
 420     Section *plt;
 421     unsigned long *got_offsets;
 422     int nb_got_offsets;
 423     /* give the correspondance from symtab indexes to dynsym indexes */
 424     int *symtab_to_dynsym;
 425
 426     /* temporary dynamic symbol sections (for dll loading) */
 427     Section *dynsymtab_section;
 428     /* exported dynamic symbol section */
 429     Section *dynsym;
 430
 431     int nostdinc; /* if true, no standard headers are added */
 432     int nostdlib; /* if true, no standard libraries are added */
 433     int nocommon; /* if true, do not use common symbols for .bss data */
 434
 435     /* if true, static linking is performed */
 436     int static_link;
 437
 438     /* soname as specified on the command line (-soname) */
 439     const char *soname;
 440
 441     /* if true, all symbols are exported */
 442     int rdynamic;
 443
 444     /* if true, only link in referenced objects from archive */
 445     int alacarte_link;
 446
 447     /* address of text section */
 448     unsigned long text_addr;
 449     int has_text_addr;
 450
 451     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 452     int output_format;
 453
 454     /* C language options */
 455     int char_is_unsigned;
 456     int leading_underscore;
 457
 458     /* warning switches */
 459     int warn_write_strings;
 460     int warn_unsupported;
 461     int warn_error;
 462     int warn_none;
 463     int warn_implicit_function_declaration;
 464
 465     /* display some information during compilation */
 466     int verbose;
 467     /* compile with debug symbol (and use them if error during execution) */
 468     int do_debug;
 469     /* compile with built-in memory and bounds checker */
 470     int do_bounds_check;
 471     /* give the path of the tcc libraries */
 472     char *tcc_lib_path;
 473
 474     /* error handling */
 475     void *error_opaque;
 476     void (*error_func)(void *opaque, const char *msg);
 477     int error_set_jmp_enabled;
 478 #ifdef _WIN64
 479     __aligned(16)
 480 #endif
 481     jmp_buf error_jmp_buf;
 482     int nb_errors;
 483
 484     /* tiny assembler state */
 485     Sym *asm_labels;
 486
 487     /* see include_stack_ptr */
 488     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 489
 490     /* see ifdef_stack_ptr */
 491     int ifdef_stack[IFDEF_STACK_SIZE];
 492
 493     /* see cached_includes */
 494     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 495
 496     /* pack stack */
 497     int pack_stack[PACK_STACK_SIZE];
 498     int *pack_stack_ptr;
 499
 500     /* output file for preprocessing */
 501     FILE *outfile;
 502
 503     /* for tcc_relocate */
 504     int runtime_added;
 505
 506     struct InlineFunc **inline_fns;
 507     int nb_inline_fns;
 508
 509 #ifdef TCC_TARGET_I386
 510     int seg_size;
 511 #endif
 512
 513     /* section alignment */
 514     unsigned long section_align;
 515
 516 #ifdef TCC_TARGET_PE
 517     /* PE info */
 518     int pe_subsystem;
 519     unsigned long pe_file_align;
 520 #endif
 521
 522 #ifndef TCC_TARGET_PE
 523 #ifdef TCC_TARGET_X86_64
 524     /* write PLT and GOT here */
 525     char *runtime_plt_and_got;
 526     unsigned int runtime_plt_and_got_offset;
 527 #endif
 528 #endif
 529 };
 530
 531 /* The current value can be: */
 532 #define VT_VALMASK   0x00ff
 533 #define VT_CONST     0x00f0  /* constant in vc
 534                               (must be first non register value) */
 535 #define VT_LLOCAL    0x00f1  /* lvalue, offset on stack */
 536 #define VT_LOCAL     0x00f2  /* offset on stack */
 537 #define VT_CMP       0x00f3  /* the value is stored in processor flags (in vc) */
 538 #define VT_JMP       0x00f4  /* value is the consequence of jmp true (even) */
 539 #define VT_JMPI      0x00f5  /* value is the consequence of jmp false (odd) */
 540 #define VT_LVAL      0x0100  /* var is an lvalue */
 541 #define VT_SYM       0x0200  /* a symbol value is added */
 542 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 543                                 char/short stored in integer registers) */
 544 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 545                                 dereferencing value */
 546 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 547                                 bounding function call point is in vc */
 548 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 549 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 550 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 551 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 552
 553 /* types */
 554 #define VT_INT        0  /* integer type */
 555 #define VT_BYTE       1  /* signed byte type */
 556 #define VT_SHORT      2  /* short type */
 557 #define VT_VOID       3  /* void type */
 558 #define VT_PTR        4  /* pointer */
 559 #define VT_ENUM       5  /* enum definition */
 560 #define VT_FUNC       6  /* function type */
 561 #define VT_STRUCT     7  /* struct/union definition */
 562 #define VT_FLOAT      8  /* IEEE float */
 563 #define VT_DOUBLE     9  /* IEEE double */
 564 #define VT_LDOUBLE   10  /* IEEE long double */
 565 #define VT_BOOL      11  /* ISOC99 boolean type */
 566 #define VT_LLONG     12  /* 64 bit integer */
 567 #define VT_LONG      13  /* long integer (NEVER USED as type, only
 568                             during parsing) */
 569 #define VT_BTYPE      0x000f /* mask for basic type */
 570 #define VT_UNSIGNED   0x0010  /* unsigned type */
 571 #define VT_ARRAY      0x0020  /* array type (also has VT_PTR) */
 572 #define VT_BITFIELD   0x0040  /* bitfield modifier */
 573 #define VT_CONSTANT   0x0800  /* const modifier */
 574 #define VT_VOLATILE   0x1000  /* volatile modifier */
 575 #define VT_SIGNED     0x2000  /* signed type */
 576
 577 /* storage */
 578 #define VT_EXTERN  0x00000080  /* extern definition */
 579 #define VT_STATIC  0x00000100  /* static variable */
 580 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 581 #define VT_INLINE  0x00000400  /* inline definition */
 582 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 583
 584 #define VT_STRUCT_SHIFT 16   /* shift for bitfield shift values */
 585
 586 /* type mask (except storage) */
 587 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT)
 588 #define VT_TYPE    (~(VT_STORAGE))
 589
 590 /* token values */
 591
 592 /* warning: the following compare tokens depend on i386 asm code */
 593 #define TOK_ULT 0x92
 594 #define TOK_UGE 0x93
 595 #define TOK_EQ  0x94
 596 #define TOK_NE  0x95
 597 #define TOK_ULE 0x96
 598 #define TOK_UGT 0x97
 599 #define TOK_Nset 0x98
 600 #define TOK_Nclear 0x99
 601 #define TOK_LT  0x9c
 602 #define TOK_GE  0x9d
 603 #define TOK_LE  0x9e
 604 #define TOK_GT  0x9f
 605
 606 #define TOK_LAND  0xa0
 607 #define TOK_LOR   0xa1
 608
 609 #define TOK_DEC   0xa2
 610 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 611 #define TOK_INC   0xa4
 612 #define TOK_UDIV  0xb0 /* unsigned division */
 613 #define TOK_UMOD  0xb1 /* unsigned modulo */
 614 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 615 #define TOK_CINT   0xb3 /* number in tokc */
 616 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 617 #define TOK_STR   0xb5 /* pointer to string in tokc */
 618 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 619 #define TOK_LCHAR    0xb7
 620 #define TOK_LSTR     0xb8
 621 #define TOK_CFLOAT   0xb9 /* float constant */
 622 #define TOK_LINENUM  0xba /* line number info */
 623 #define TOK_CDOUBLE  0xc0 /* double constant */
 624 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 625 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 626 #define TOK_ADDC1    0xc3 /* add with carry generation */
 627 #define TOK_ADDC2    0xc4 /* add with carry use */
 628 #define TOK_SUBC1    0xc5 /* add with carry generation */
 629 #define TOK_SUBC2    0xc6 /* add with carry use */
 630 #define TOK_CUINT    0xc8 /* unsigned int constant */
 631 #define TOK_CLLONG   0xc9 /* long long constant */
 632 #define TOK_CULLONG  0xca /* unsigned long long constant */
 633 #define TOK_ARROW    0xcb
 634 #define TOK_DOTS     0xcc /* three dots */
 635 #define TOK_SHR      0xcd /* unsigned shift right */
 636 #define TOK_PPNUM    0xce /* preprocessor number */
 637
 638 #define TOK_SHL   0x01 /* shift left */
 639 #define TOK_SAR   0x02 /* signed shift right */
 640
 641 /* assignement operators : normal operator or 0x80 */
 642 #define TOK_A_MOD 0xa5
 643 #define TOK_A_AND 0xa6
 644 #define TOK_A_MUL 0xaa
 645 #define TOK_A_ADD 0xab
 646 #define TOK_A_SUB 0xad
 647 #define TOK_A_DIV 0xaf
 648 #define TOK_A_XOR 0xde
 649 #define TOK_A_OR  0xfc
 650 #define TOK_A_SHL 0x81
 651 #define TOK_A_SAR 0x82
 652
 653 #ifndef offsetof
 654 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 655 #endif
 656
 657 #ifndef countof
 658 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 659 #endif
 660
 661 #define TOK_EOF       (-1)  /* end of file */
 662 #define TOK_LINEFEED  10    /* line feed */
 663
 664 /* all identificators and strings have token above that */
 665 #define TOK_IDENT 256
 666
 667 /* only used for i386 asm opcodes definitions */
 668 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 669
 670 #define DEF_BWL(x) \
 671  DEF(TOK_ASM_ ## x ## b, #x "b") \
 672  DEF(TOK_ASM_ ## x ## w, #x "w") \
 673  DEF(TOK_ASM_ ## x ## l, #x "l") \
 674  DEF(TOK_ASM_ ## x, #x)
 675
 676 #define DEF_WL(x) \
 677  DEF(TOK_ASM_ ## x ## w, #x "w") \
 678  DEF(TOK_ASM_ ## x ## l, #x "l") \
 679  DEF(TOK_ASM_ ## x, #x)
 680
 681 #ifdef TCC_TARGET_X86_64
 682
 683 #define DEF_BWLQ(x) \
 684  DEF(TOK_ASM_ ## x ## b, #x "b") \
 685  DEF(TOK_ASM_ ## x ## w, #x "w") \
 686  DEF(TOK_ASM_ ## x ## l, #x "l") \
 687  DEF(TOK_ASM_ ## x ## q, #x "q") \
 688  DEF(TOK_ASM_ ## x, #x)
 689
 690 #define DEF_WLQ(x) \
 691  DEF(TOK_ASM_ ## x ## w, #x "w") \
 692  DEF(TOK_ASM_ ## x ## l, #x "l") \
 693  DEF(TOK_ASM_ ## x ## q, #x "q") \
 694  DEF(TOK_ASM_ ## x, #x)
 695
 696 #endif
 697
 698 #define DEF_FP1(x) \
 699  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 700  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 701  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 702  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 703
 704 #define DEF_FP(x) \
 705  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 706  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 707  DEF_FP1(x)
 708
 709 #define DEF_ASMTEST(x) \
 710  DEF_ASM(x ## o) \
 711  DEF_ASM(x ## no) \
 712  DEF_ASM(x ## b) \
 713  DEF_ASM(x ## c) \
 714  DEF_ASM(x ## nae) \
 715  DEF_ASM(x ## nb) \
 716  DEF_ASM(x ## nc) \
 717  DEF_ASM(x ## ae) \
 718  DEF_ASM(x ## e) \
 719  DEF_ASM(x ## z) \
 720  DEF_ASM(x ## ne) \
 721  DEF_ASM(x ## nz) \
 722  DEF_ASM(x ## be) \
 723  DEF_ASM(x ## na) \
 724  DEF_ASM(x ## nbe) \
 725  DEF_ASM(x ## a) \
 726  DEF_ASM(x ## s) \
 727  DEF_ASM(x ## ns) \
 728  DEF_ASM(x ## p) \
 729  DEF_ASM(x ## pe) \
 730  DEF_ASM(x ## np) \
 731  DEF_ASM(x ## po) \
 732  DEF_ASM(x ## l) \
 733  DEF_ASM(x ## nge) \
 734  DEF_ASM(x ## nl) \
 735  DEF_ASM(x ## ge) \
 736  DEF_ASM(x ## le) \
 737  DEF_ASM(x ## ng) \
 738  DEF_ASM(x ## nle) \
 739  DEF_ASM(x ## g)
 740
 741 #define TOK_ASM_int TOK_INT
 742
 743 enum tcc_token {
 744     TOK_LAST = TOK_IDENT - 1,
 745 #define DEF(id, str) id,
 746 #include "tcctok.h"
 747 #undef DEF
 748 };
 749
 750 #define TOK_UIDENT TOK_DEFINE
 751
 752 #ifdef _WIN32
 753 #define snprintf _snprintf
 754 #define vsnprintf _vsnprintf
 755 #ifndef __GNUC__
 756   #define strtold (long double)strtod
 757   #define strtof (float)strtod
 758   #define strtoll (long long)strtol
 759 #endif
 760 #elif defined(TCC_UCLIBC) || defined(__FreeBSD__) || defined(__DragonFly__) \
 761     || defined(__OpenBSD__) || defined(__CYGWIN__)
 762 /* currently incorrect */
 763 long double strtold(const char *nptr, char **endptr);
 764 float strtof(const char *nptr, char **endptr);
 765 #else
 766 /* XXX: need to define this to use them in non ISOC99 context */
 767 extern float strtof (const char *__nptr, char **__endptr);
 768 extern long double strtold (const char *__nptr, char **__endptr);
 769 #endif
 770
 771 #ifdef _WIN32
 772 #define IS_PATHSEP(c) (c == '/' || c == '\\')
 773 #define IS_ABSPATH(p) (IS_PATHSEP(p[0]) || (p[0] && p[1] == ':' && IS_PATHSEP(p[2])))
 774 #define PATHCMP stricmp
 775 #else
 776 #define IS_PATHSEP(c) (c == '/')
 777 #define IS_ABSPATH(p) IS_PATHSEP(p[0])
 778 #define PATHCMP strcmp
 779 #endif
 780
 781 void error(const char *fmt, ...);
 782 void error_noabort(const char *fmt, ...);
 783 void warning(const char *fmt, ...);
 784
 785 void tcc_set_lib_path_w32(TCCState *s);
 786 int tcc_set_flag(TCCState *s, const char *flag_name, int value);
 787 void tcc_print_stats(TCCState *s, int64_t total_time);
 788
 789 void tcc_free(void *ptr);
 790 void *tcc_malloc(unsigned long size);
 791 void *tcc_mallocz(unsigned long size);
 792 void *tcc_realloc(void *ptr, unsigned long size);
 793 char *tcc_strdup(const char *str);
 794
 795 char *tcc_basename(const char *name);
 796 char *tcc_fileextension (const char *name);
 797 char *pstrcpy(char *buf, int buf_size, const char *s);
 798 char *pstrcat(char *buf, int buf_size, const char *s);
 799 void dynarray_add(void ***ptab, int *nb_ptr, void *data);
 800 void dynarray_reset(void *pp, int *n);
 801
 802 /* true if float/double/long double type */
 803 static inline int is_float(int t)
 804 {
 805     int bt;
 806     bt = t & VT_BTYPE;
 807     return bt == VT_LDOUBLE || bt == VT_DOUBLE || bt == VT_FLOAT;
 808 }
 809
 810 /* space exlcuding newline */
 811 static inline int is_space(int ch)
 812 {
 813     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 814 }
 815
 816 static inline int isid(int c)
 817 {
 818     return (c >= 'a' && c <= 'z')
 819         || (c >= 'A' && c <= 'Z')
 820         || c == '_';
 821 }
 822
 823 static inline int isnum(int c)
 824 {
 825     return c >= '0' && c <= '9';
 826 }
 827
 828 static inline int isoct(int c)
 829 {
 830     return c >= '0' && c <= '7';
 831 }
 832
 833 static inline int toup(int c)
 834 {
 835     if (c >= 'a' && c <= 'z')
 836         return c - 'a' + 'A';
 837     else
 838         return c;
 839 }
 840
 841 /* type handling */
 842 int type_size(CType *type, int *a);
 843 inline CType *pointed_type(CType *type);
 844 int pointed_size(CType *type);
 845 int lvalue_type(int t);
 846 int parse_btype(CType *type, AttributeDef *ad);
 847 void type_decl(CType *type, AttributeDef *ad, int *v, int td);
 848 int compare_types(CType *type1, CType *type2, int unqualified);
 849 int is_compatible_types(CType *type1, CType *type2);
 850 int is_compatible_parameter_types(CType *type1, CType *type2);
 851
 852 int ieee_finite(double d);
 853 void vpushi(int v);
 854 void vpushll(long long v);
 855 void vrott(int n);
 856 void vnrott(int n);
 857 void lexpand_nr(void);
 858 void vpush_global_sym(CType *type, int v);
 859 void vset(CType *type, int r, int v);
 860 void type_to_str(char *buf, int buf_size,
 861                  CType *type, const char *varstr);
 862 Sym *get_sym_ref(CType *type, Section *sec,
 863                         unsigned long offset, unsigned long size);
 864 Sym *external_global_sym(int v, CType *type, int r);
 865
 866 int tcc_add_dll(TCCState *s, const char *filename, int flags);
 867
 868 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
 869 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
 870 #define AFF_PREPROCESS      0x0004 /* preprocess file */
 871 int tcc_add_file_internal(TCCState *s, const char *filename, int flags);
 872
 873
 874 Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
 875 void free_section(Section *s);
 876 void section_realloc(Section *sec, unsigned long new_size);
 877 void *section_ptr_add(Section *sec, unsigned long size);
 878 Section *find_section(TCCState *s1, const char *name);
 879 void put_extern_sym2(
 880     Sym *sym, Section *section,
 881     unsigned long value, unsigned long size, int can_add_underscore);
 882 void put_extern_sym(
 883     Sym *sym, Section *section,
 884     unsigned long value, unsigned long size);
 885 void greloc(Section *s, Sym *sym, unsigned long offset, int type);
 886
 887 void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap);
 888 void strcat_printf(char *buf, int buf_size, const char *fmt, ...);
 889
 890 BufferedFile *tcc_open(TCCState *s1, const char *filename);
 891 void tcc_close(BufferedFile *bf);
 892 int tcc_compile(TCCState *s1);
 893
 894 void expect(const char *msg);
 895 void skip(int c);
 896 void test_lvalue(void);
 897 void *resolve_sym(TCCState *s1, const char *sym);
 898
 899 /* interpret a subset of GNU ldscripts to handle the dummy libc.so
 900    files */
 901 int tcc_load_ldscript(TCCState *s1);
 902 /* load a DLL and all referenced DLLs. 'level = 0' means that the DLL
 903    is referenced by the user (so it should be added as DT_NEEDED in
 904    the generated ELF file) */
 905 int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
 906 unsigned long rt_printline(unsigned long wanted_pc);
 907
 908 /********************************************************/
 909 /* global variables */
 910
 911 /* display benchmark infos */
 912 extern int total_lines;
 913 extern int total_bytes;
 914
 915 /* parser */
 916 extern struct BufferedFile *file;
 917 extern int ch, tok;
 918 extern CValue tokc;
 919 extern CString tokcstr; /* current parsed string, if any */
 920 /* additional informations about token */
 921 extern int tok_flags;
 922 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
 923 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
 924 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
 925 #define TOK_FLAG_EOF   0x0008 /* end of file */
 926
 927 extern int *macro_ptr, *macro_ptr_allocated;
 928 extern int *unget_saved_macro_ptr;
 929 extern int unget_saved_buffer[TOK_MAX_SIZE + 1];
 930 extern int unget_buffer_enabled;
 931 extern int parse_flags;
 932 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
 933 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
 934 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
 935                                         token. line feed is also
 936                                         returned at eof */
 937 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
 938 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
 939
 940 extern Section *text_section, *data_section, *bss_section; /* predefined sections */
 941 extern Section *cur_text_section; /* current section where function code is
 942                               generated */
 943 #ifdef CONFIG_TCC_ASM
 944 extern Section *last_text_section; /* to handle .previous asm directive */
 945 #endif
 946 /* bound check related sections */
 947 extern Section *bounds_section; /* contains global data bound description */
 948 extern Section *lbounds_section; /* contains local data bound description */
 949 /* symbol sections */
 950 extern Section *symtab_section, *strtab_section;
 951
 952 /* debug sections */
 953 extern Section *stab_section, *stabstr_section;
 954
 955 /* loc : local variable index
 956    ind : output code index
 957    rsym: return symbol
 958    anon_sym: anonymous symbol index
 959 */
 960 extern int rsym, anon_sym, ind, loc;
 961 /* expression generation modifiers */
 962 extern int const_wanted; /* true if constant wanted */
 963 extern int nocode_wanted; /* true if no code generation wanted for an expression */
 964 extern int global_expr;  /* true if compound literals must be allocated
 965                             globally (used during initializers parsing */
 966 extern CType func_vt; /* current function return type (used by return
 967                          instruction) */
 968 extern int func_vc;
 969 extern int last_line_num, last_ind, func_ind; /* debug last line number and pc */
 970 extern int tok_ident;
 971 extern TokenSym **table_ident;
 972 extern TokenSym *hash_ident[TOK_HASH_SIZE];
 973 extern char token_buf[STRING_MAX_SIZE + 1];
 974 extern char *funcname;
 975 extern Sym *global_stack, *local_stack;
 976 extern Sym *define_stack;
 977 extern Sym *global_label_stack, *local_label_stack;
 978 /* symbol allocator */
 979 #define SYM_POOL_NB (8192 / sizeof(Sym))
 980 extern Sym *sym_free_first;
 981 extern void **sym_pools;
 982 extern int nb_sym_pools;
 983
 984 extern SValue vstack[VSTACK_SIZE], *vtop;
 985 /* some predefined types */
 986 extern CType char_pointer_type, func_old_type, int_type;
 987
 988 /* use GNU C extensions */
 989 extern int gnu_ext;
 990
 991 /* use Tiny C extensions */
 992 extern int tcc_ext;
 993
 994 /* max number of callers shown if error */
 995 #ifdef CONFIG_TCC_BACKTRACE
 996 extern int num_callers;
 997 extern const char **rt_bound_error_msg;
 998 extern unsigned long rt_prog_main;
 999 #endif
1000
1001 /* XXX: get rid of this ASAP */
1002 extern struct TCCState *tcc_state;
1003
1004 /*
1005  * Include the target specific definitions.
1006  */
1007 #ifdef TCC_TARGET_I386
1008 #include "i386-gen.h"
1009 #endif
1010
1011 #ifdef TCC_TARGET_ARM
1012 #include "arm-gen.h"
1013 #endif
1014
1015 #ifdef TCC_TARGET_C67
1016 #include "c67-gen.h"
1017 #endif
1018
1019 #ifdef TCC_TARGET_X86_64
1020 #include "x86_64-gen.h"
1021 #endif
1022
1023 #include "tccpp.h"
1024 #include "tcccoff.h"
1025 #include "tccelf.h"
1026 #include "tcccstring.h"
1027 #include "tccgen.h"
1028 #include "tccasm.h"
1029 #include "tccld.h"
1030 #include "tccsym.h"
1031 #include "tccutil.h"
1032 #include "tccargs.h"
1033 #include "tccos.h"
1034
1035 #ifdef TCC_TARGET_PE
1036 #include "tccpe.h"
1037 #endif
1038
1039
1040 #endif /* __TCC_H__ */