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 #ifdef CONFIG_TCCBOOT
  28
  29 #include "tccboot.h"
  30 #define CONFIG_TCC_STATIC
  31
  32 #else
  33
  34 #include <stdlib.h>
  35 #include <stdio.h>
  36 #include <stdarg.h>
  37 #include <string.h>
  38 #include <errno.h>
  39 #include <math.h>
  40 #include <signal.h>
  41 #include <fcntl.h>
  42 #include <setjmp.h>
  43 #include <time.h>
  44
  45 #ifdef _WIN32
  46 #include <windows.h>
  47 #include <sys/timeb.h>
  48 #include <io.h> /* open, close etc. */
  49 #include <direct.h> /* getcwd */
  50 #define inline __inline
  51 #define inp next_inp
  52 #ifdef _MSC_VER
  53 #define __aligned(n) __declspec(align(n))
  54 #endif
  55 #ifdef _WIN64
  56 #define uplong unsigned long long
  57 #endif
  58 #ifdef __BORLANDC__
  59 #define _timeb timeb
  60 #define _ftime ftime
  61 #endif
  62 #endif
  63
  64 #ifndef _WIN32
  65 #include <unistd.h>
  66 #include <sys/time.h>
  67 #include <sys/ucontext.h>
  68 #include <sys/mman.h>
  69 #endif
  70
  71 #endif /* !CONFIG_TCCBOOT */
  72
  73 #ifndef uplong
  74 #define uplong unsigned long
  75 #endif
  76
  77 #ifndef __aligned
  78 #define __aligned(n) __attribute__((aligned(n)))
  79 #endif
  80
  81 #ifndef PAGESIZE
  82 #define PAGESIZE 4096
  83 #endif
  84
  85 #include "elf.h"
  86 #include "stab.h"
  87
  88 #ifndef O_BINARY
  89 #define O_BINARY 0
  90 #endif
  91
  92 #include "libtcc.h"
  93
  94 /* parser debug */
  95 //#define PARSE_DEBUG
  96 /* preprocessor debug */
  97 //#define PP_DEBUG
  98 /* include file debug */
  99 //#define INC_DEBUG
 100
 101 //#define MEM_DEBUG
 102
 103 /* assembler debug */
 104 //#define ASM_DEBUG
 105
 106 /* target selection */
 107 //#define TCC_TARGET_I386   /* i386 code generator */
 108 //#define TCC_TARGET_ARM    /* ARMv4 code generator */
 109 //#define TCC_TARGET_C67    /* TMS320C67xx code generator */
 110 //#define TCC_TARGET_X86_64 /* x86-64 code generator */
 111
 112 /* default target is I386 */
 113 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 114     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 115 #define TCC_TARGET_I386
 116 #endif
 117
 118 #if !defined(_WIN32) && !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 119     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 120 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 121 #endif
 122
 123 #if defined(_WIN32) && !defined(TCC_TARGET_PE)
 124 #define CONFIG_TCC_STATIC
 125 #endif
 126
 127 /* define it to include assembler support */
 128 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 129 #define CONFIG_TCC_ASM
 130 #endif
 131
 132 /* object format selection */
 133 #if defined(TCC_TARGET_C67)
 134 #define TCC_TARGET_COFF
 135 #endif
 136
 137 #if !defined(_WIN32) && !defined(CONFIG_TCCBOOT)
 138 #define CONFIG_TCC_BACKTRACE
 139 #endif
 140
 141 #define FALSE 0
 142 #define false 0
 143 #define TRUE 1
 144 #define true 1
 145 typedef int BOOL;
 146
 147 /* path to find crt1.o, crti.o and crtn.o. Only needed when generating
 148    executables or dlls */
 149 #define CONFIG_TCC_CRT_PREFIX CONFIG_SYSROOT "/usr/lib"
 150
 151 #define INCLUDE_STACK_SIZE  32
 152 #define IFDEF_STACK_SIZE    64
 153 #define VSTACK_SIZE         256
 154 #define STRING_MAX_SIZE     1024
 155 #define PACK_STACK_SIZE     8
 156
 157 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 158 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 159 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 160
 161 /* token symbol management */
 162 typedef struct TokenSym {
 163     struct TokenSym *hash_next;
 164     struct Sym *sym_define; /* direct pointer to define */
 165     struct Sym *sym_label; /* direct pointer to label */
 166     struct Sym *sym_struct; /* direct pointer to structure */
 167     struct Sym *sym_identifier; /* direct pointer to identifier */
 168     int tok; /* token number */
 169     int len;
 170     char str[1];
 171 } TokenSym;
 172
 173 #ifdef TCC_TARGET_PE
 174 typedef unsigned short nwchar_t;
 175 #else
 176 typedef int nwchar_t;
 177 #endif
 178
 179 typedef struct CString {
 180     int size; /* size in bytes */
 181     void *data; /* either 'char *' or 'nwchar_t *' */
 182     int size_allocated;
 183     void *data_allocated; /* if non NULL, data has been malloced */
 184 } CString;
 185
 186 /* type definition */
 187 typedef struct CType {
 188     int t;
 189     struct Sym *ref;
 190 } CType;
 191
 192 /* constant value */
 193 typedef union CValue {
 194     long double ld;
 195     double d;
 196     float f;
 197     int i;
 198     unsigned int ui;
 199     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 200     long long ll;
 201     unsigned long long ull;
 202     struct CString *cstr;
 203     void *ptr;
 204     int tab[1];
 205 } CValue;
 206
 207 /* value on stack */
 208 typedef struct SValue {
 209     CType type;      /* type */
 210     unsigned short r;      /* register + flags */
 211     unsigned short r2;     /* second register, used for 'long long'
 212                               type. If not used, set to VT_CONST */
 213     CValue c;              /* constant, if VT_CONST */
 214     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 215 } SValue;
 216
 217 /* symbol management */
 218 typedef struct Sym {
 219     int v;    /* symbol token */
 220     long r;    /* associated register */
 221     union {
 222         long c;    /* associated number */
 223         int *d;   /* define token stream */
 224     };
 225     CType type;    /* associated type */
 226     union {
 227         struct Sym *next; /* next related symbol */
 228         long jnext; /* next jump label */
 229     };
 230     struct Sym *prev; /* prev symbol in stack */
 231     struct Sym *prev_tok; /* previous symbol for this token */
 232 } Sym;
 233
 234 /* section definition */
 235 /* XXX: use directly ELF structure for parameters ? */
 236 /* special flag to indicate that the section should not be linked to
 237    the other ones */
 238 #define SHF_PRIVATE 0x80000000
 239
 240 /* special flag, too */
 241 #define SECTION_ABS ((void *)1)
 242
 243 typedef struct Section {
 244     unsigned long data_offset; /* current data offset */
 245     unsigned char *data;       /* section data */
 246     unsigned long data_allocated; /* used for realloc() handling */
 247     int sh_name;             /* elf section name (only used during output) */
 248     int sh_num;              /* elf section number */
 249     int sh_type;             /* elf section type */
 250     int sh_flags;            /* elf section flags */
 251     int sh_info;             /* elf section info */
 252     int sh_addralign;        /* elf section alignment */
 253     int sh_entsize;          /* elf entry size */
 254     unsigned long sh_size;   /* section size (only used during output) */
 255     unsigned long sh_addr;      /* address at which the section is relocated */
 256     unsigned long sh_offset;    /* file offset */
 257     int nb_hashed_syms;      /* used to resize the hash table */
 258     struct Section *link;    /* link to another section */
 259     struct Section *reloc;   /* corresponding section for relocation, if any */
 260     struct Section *hash;     /* hash table for symbols */
 261     struct Section *next;
 262     char name[1];           /* section name */
 263 } Section;
 264
 265 typedef struct DLLReference {
 266     int level;
 267     void *handle;
 268     char name[1];
 269 } DLLReference;
 270
 271 /* GNUC attribute definition */
 272 typedef struct AttributeDef {
 273     int aligned;
 274     int packed;
 275     Section *section;
 276     int func_attr; /* calling convention, exports, ... */
 277 } AttributeDef;
 278
 279 /* -------------------------------------------------- */
 280 /* gr: wrappers for casting sym->r for other purposes */
 281 typedef struct {
 282     unsigned
 283       func_call : 8,
 284       func_args : 8,
 285       func_export : 1,
 286       func_import : 1;
 287 } func_attr_t;
 288
 289 #define FUNC_CALL(r) (((func_attr_t*)&(r))->func_call)
 290 #define FUNC_EXPORT(r) (((func_attr_t*)&(r))->func_export)
 291 #define FUNC_IMPORT(r) (((func_attr_t*)&(r))->func_import)
 292 #define FUNC_ARGS(r) (((func_attr_t*)&(r))->func_args)
 293 /* -------------------------------------------------- */
 294
 295 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 296 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 297 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 298
 299 /* stored in 'Sym.c' field */
 300 #define FUNC_NEW       1 /* ansi function prototype */
 301 #define FUNC_OLD       2 /* old function prototype */
 302 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 303
 304 /* stored in 'Sym.r' field */
 305 #define FUNC_CDECL     0 /* standard c call */
 306 #define FUNC_STDCALL   1 /* pascal c call */
 307 #define FUNC_FASTCALL1 2 /* first param in %eax */
 308 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 309 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 310 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 311
 312 /* field 'Sym.t' for macros */
 313 #define MACRO_OBJ      0 /* object like macro */
 314 #define MACRO_FUNC     1 /* function like macro */
 315
 316 /* field 'Sym.r' for C labels */
 317 #define LABEL_DEFINED  0 /* label is defined */
 318 #define LABEL_FORWARD  1 /* label is forward defined */
 319 #define LABEL_DECLARED 2 /* label is declared but never used */
 320
 321 /* type_decl() types */
 322 #define TYPE_ABSTRACT  1 /* type without variable */
 323 #define TYPE_DIRECT    2 /* type with variable */
 324
 325 #define IO_BUF_SIZE 8192
 326
 327 typedef struct BufferedFile {
 328     uint8_t *buf_ptr;
 329     uint8_t *buf_end;
 330     int fd;
 331     int line_num;    /* current line number - here to simplify code */
 332     int ifndef_macro;  /* #ifndef macro / #endif search */
 333     int ifndef_macro_saved; /* saved ifndef_macro */
 334     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 335     char inc_type;          /* type of include */
 336     char inc_filename[512]; /* filename specified by the user */
 337     char filename[1024];    /* current filename - here to simplify code */
 338     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 339 } BufferedFile;
 340
 341 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 342 #define CH_EOF   (-1)   /* end of file */
 343
 344 /* parsing state (used to save parser state to reparse part of the
 345    source several times) */
 346 typedef struct ParseState {
 347     int *macro_ptr;
 348     int line_num;
 349     int tok;
 350     CValue tokc;
 351 } ParseState;
 352
 353 /* used to record tokens */
 354 typedef struct TokenString {
 355     int *str;
 356     int len;
 357     int allocated_len;
 358     int last_line_num;
 359 } TokenString;
 360
 361 /* inline functions */
 362 typedef struct InlineFunc {
 363     int *token_str;
 364     Sym *sym;
 365     char filename[1];
 366 } InlineFunc;
 367
 368 /* include file cache, used to find files faster and also to eliminate
 369    inclusion if the include file is protected by #ifndef ... #endif */
 370 typedef struct CachedInclude {
 371     int ifndef_macro;
 372     int hash_next; /* -1 if none */
 373     char type; /* '"' or '>' to give include type */
 374     char filename[1]; /* path specified in #include */
 375 } CachedInclude;
 376
 377 #define CACHED_INCLUDES_HASH_SIZE 512
 378
 379 #ifdef CONFIG_TCC_ASM
 380 typedef struct ExprValue {
 381     uint32_t v;
 382     Sym *sym;
 383 } ExprValue;
 384
 385 #define MAX_ASM_OPERANDS 30
 386 typedef struct ASMOperand {
 387     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 388     char *constraint;
 389     char asm_str[16]; /* computed asm string for operand */
 390     SValue *vt; /* C value of the expression */
 391     int ref_index; /* if >= 0, gives reference to a output constraint */
 392     int input_index; /* if >= 0, gives reference to an input constraint */
 393     int priority; /* priority, used to assign registers */
 394     int reg; /* if >= 0, register number used for this operand */
 395     int is_llong; /* true if double register value */
 396     int is_memory; /* true if memory operand */
 397     int is_rw;     /* for '+' modifier */
 398 } ASMOperand;
 399 #endif
 400
 401 struct TCCState {
 402     int output_type;
 403
 404     BufferedFile **include_stack_ptr;
 405     int *ifdef_stack_ptr;
 406
 407     /* include file handling */
 408     char **include_paths;
 409     int nb_include_paths;
 410     char **sysinclude_paths;
 411     int nb_sysinclude_paths;
 412     CachedInclude **cached_includes;
 413     int nb_cached_includes;
 414
 415     char **library_paths;
 416     int nb_library_paths;
 417
 418     /* array of all loaded dlls (including those referenced by loaded
 419        dlls) */
 420     DLLReference **loaded_dlls;
 421     int nb_loaded_dlls;
 422
 423     /* sections */
 424     Section **sections;
 425     int nb_sections; /* number of sections, including first dummy section */
 426
 427     Section **priv_sections;
 428     int nb_priv_sections; /* number of private sections */
 429
 430     /* got handling */
 431     Section *got;
 432     Section *plt;
 433     unsigned long *got_offsets;
 434     int nb_got_offsets;
 435     /* give the correspondance from symtab indexes to dynsym indexes */
 436     int *symtab_to_dynsym;
 437
 438     /* temporary dynamic symbol sections (for dll loading) */
 439     Section *dynsymtab_section;
 440     /* exported dynamic symbol section */
 441     Section *dynsym;
 442
 443     int nostdinc; /* if true, no standard headers are added */
 444     int nostdlib; /* if true, no standard libraries are added */
 445     int nocommon; /* if true, do not use common symbols for .bss data */
 446
 447     /* if true, static linking is performed */
 448     int static_link;
 449
 450     /* soname as specified on the command line (-soname) */
 451     const char *soname;
 452
 453     /* if true, all symbols are exported */
 454     int rdynamic;
 455
 456     /* if true, only link in referenced objects from archive */
 457     int alacarte_link;
 458
 459     /* address of text section */
 460     unsigned long text_addr;
 461     int has_text_addr;
 462
 463     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 464     int output_format;
 465
 466     /* C language options */
 467     int char_is_unsigned;
 468     int leading_underscore;
 469
 470     /* warning switches */
 471     int warn_write_strings;
 472     int warn_unsupported;
 473     int warn_error;
 474     int warn_none;
 475     int warn_implicit_function_declaration;
 476
 477     /* display some information during compilation */
 478     int verbose;
 479     /* compile with debug symbol (and use them if error during execution) */
 480     int do_debug;
 481     /* compile with built-in memory and bounds checker */
 482     int do_bounds_check;
 483     /* give the path of the tcc libraries */
 484     char *tcc_lib_path;
 485
 486     /* error handling */
 487     void *error_opaque;
 488     void (*error_func)(void *opaque, const char *msg);
 489     int error_set_jmp_enabled;
 490 #ifdef _WIN64
 491     __aligned(16)
 492 #endif
 493     jmp_buf error_jmp_buf;
 494     int nb_errors;
 495
 496     /* tiny assembler state */
 497     Sym *asm_labels;
 498
 499     /* see include_stack_ptr */
 500     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 501
 502     /* see ifdef_stack_ptr */
 503     int ifdef_stack[IFDEF_STACK_SIZE];
 504
 505     /* see cached_includes */
 506     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 507
 508     /* pack stack */
 509     int pack_stack[PACK_STACK_SIZE];
 510     int *pack_stack_ptr;
 511
 512     /* output file for preprocessing */
 513     FILE *outfile;
 514
 515     /* for tcc_relocate */
 516     int runtime_added;
 517
 518     struct InlineFunc **inline_fns;
 519     int nb_inline_fns;
 520
 521 #ifdef TCC_TARGET_I386
 522     int seg_size;
 523 #endif
 524
 525     /* section alignment */
 526     unsigned long section_align;
 527
 528 #ifdef TCC_TARGET_PE
 529     /* PE info */
 530     int pe_subsystem;
 531     unsigned long pe_file_align;
 532 #endif
 533
 534 #ifndef TCC_TARGET_PE
 535 #ifdef TCC_TARGET_X86_64
 536     /* write PLT and GOT here */
 537     char *runtime_plt_and_got;
 538     unsigned int runtime_plt_and_got_offset;
 539 #endif
 540 #endif
 541 };
 542
 543 /* The current value can be: */
 544 #define VT_VALMASK   0x00ff
 545 #define VT_CONST     0x00f0  /* constant in vc
 546                               (must be first non register value) */
 547 #define VT_LLOCAL    0x00f1  /* lvalue, offset on stack */
 548 #define VT_LOCAL     0x00f2  /* offset on stack */
 549 #define VT_CMP       0x00f3  /* the value is stored in processor flags (in vc) */
 550 #define VT_JMP       0x00f4  /* value is the consequence of jmp true (even) */
 551 #define VT_JMPI      0x00f5  /* value is the consequence of jmp false (odd) */
 552 #define VT_LVAL      0x0100  /* var is an lvalue */
 553 #define VT_SYM       0x0200  /* a symbol value is added */
 554 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 555                                 char/short stored in integer registers) */
 556 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 557                                 dereferencing value */
 558 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 559                                 bounding function call point is in vc */
 560 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 561 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 562 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 563 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 564
 565 /* types */
 566 #define VT_INT        0  /* integer type */
 567 #define VT_BYTE       1  /* signed byte type */
 568 #define VT_SHORT      2  /* short type */
 569 #define VT_VOID       3  /* void type */
 570 #define VT_PTR        4  /* pointer */
 571 #define VT_ENUM       5  /* enum definition */
 572 #define VT_FUNC       6  /* function type */
 573 #define VT_STRUCT     7  /* struct/union definition */
 574 #define VT_FLOAT      8  /* IEEE float */
 575 #define VT_DOUBLE     9  /* IEEE double */
 576 #define VT_LDOUBLE   10  /* IEEE long double */
 577 #define VT_BOOL      11  /* ISOC99 boolean type */
 578 #define VT_LLONG     12  /* 64 bit integer */
 579 #define VT_LONG      13  /* long integer (NEVER USED as type, only
 580                             during parsing) */
 581 #define VT_BTYPE      0x000f /* mask for basic type */
 582 #define VT_UNSIGNED   0x0010  /* unsigned type */
 583 #define VT_ARRAY      0x0020  /* array type (also has VT_PTR) */
 584 #define VT_BITFIELD   0x0040  /* bitfield modifier */
 585 #define VT_CONSTANT   0x0800  /* const modifier */
 586 #define VT_VOLATILE   0x1000  /* volatile modifier */
 587 #define VT_SIGNED     0x2000  /* signed type */
 588
 589 /* storage */
 590 #define VT_EXTERN  0x00000080  /* extern definition */
 591 #define VT_STATIC  0x00000100  /* static variable */
 592 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 593 #define VT_INLINE  0x00000400  /* inline definition */
 594 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 595
 596 #define VT_STRUCT_SHIFT 16   /* shift for bitfield shift values */
 597
 598 /* type mask (except storage) */
 599 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT)
 600 #define VT_TYPE    (~(VT_STORAGE))
 601
 602 /* token values */
 603
 604 /* warning: the following compare tokens depend on i386 asm code */
 605 #define TOK_ULT 0x92
 606 #define TOK_UGE 0x93
 607 #define TOK_EQ  0x94
 608 #define TOK_NE  0x95
 609 #define TOK_ULE 0x96
 610 #define TOK_UGT 0x97
 611 #define TOK_Nset 0x98
 612 #define TOK_Nclear 0x99
 613 #define TOK_LT  0x9c
 614 #define TOK_GE  0x9d
 615 #define TOK_LE  0x9e
 616 #define TOK_GT  0x9f
 617
 618 #define TOK_LAND  0xa0
 619 #define TOK_LOR   0xa1
 620
 621 #define TOK_DEC   0xa2
 622 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 623 #define TOK_INC   0xa4
 624 #define TOK_UDIV  0xb0 /* unsigned division */
 625 #define TOK_UMOD  0xb1 /* unsigned modulo */
 626 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 627 #define TOK_CINT   0xb3 /* number in tokc */
 628 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 629 #define TOK_STR   0xb5 /* pointer to string in tokc */
 630 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 631 #define TOK_LCHAR    0xb7
 632 #define TOK_LSTR     0xb8
 633 #define TOK_CFLOAT   0xb9 /* float constant */
 634 #define TOK_LINENUM  0xba /* line number info */
 635 #define TOK_CDOUBLE  0xc0 /* double constant */
 636 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 637 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 638 #define TOK_ADDC1    0xc3 /* add with carry generation */
 639 #define TOK_ADDC2    0xc4 /* add with carry use */
 640 #define TOK_SUBC1    0xc5 /* add with carry generation */
 641 #define TOK_SUBC2    0xc6 /* add with carry use */
 642 #define TOK_CUINT    0xc8 /* unsigned int constant */
 643 #define TOK_CLLONG   0xc9 /* long long constant */
 644 #define TOK_CULLONG  0xca /* unsigned long long constant */
 645 #define TOK_ARROW    0xcb
 646 #define TOK_DOTS     0xcc /* three dots */
 647 #define TOK_SHR      0xcd /* unsigned shift right */
 648 #define TOK_PPNUM    0xce /* preprocessor number */
 649
 650 #define TOK_SHL   0x01 /* shift left */
 651 #define TOK_SAR   0x02 /* signed shift right */
 652
 653 /* assignement operators : normal operator or 0x80 */
 654 #define TOK_A_MOD 0xa5
 655 #define TOK_A_AND 0xa6
 656 #define TOK_A_MUL 0xaa
 657 #define TOK_A_ADD 0xab
 658 #define TOK_A_SUB 0xad
 659 #define TOK_A_DIV 0xaf
 660 #define TOK_A_XOR 0xde
 661 #define TOK_A_OR  0xfc
 662 #define TOK_A_SHL 0x81
 663 #define TOK_A_SAR 0x82
 664
 665 #ifndef offsetof
 666 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 667 #endif
 668
 669 #ifndef countof
 670 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 671 #endif
 672
 673 #define TOK_EOF       (-1)  /* end of file */
 674 #define TOK_LINEFEED  10    /* line feed */
 675
 676 /* all identificators and strings have token above that */
 677 #define TOK_IDENT 256
 678
 679 /* only used for i386 asm opcodes definitions */
 680 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 681
 682 #define DEF_BWL(x) \
 683  DEF(TOK_ASM_ ## x ## b, #x "b") \
 684  DEF(TOK_ASM_ ## x ## w, #x "w") \
 685  DEF(TOK_ASM_ ## x ## l, #x "l") \
 686  DEF(TOK_ASM_ ## x, #x)
 687
 688 #define DEF_WL(x) \
 689  DEF(TOK_ASM_ ## x ## w, #x "w") \
 690  DEF(TOK_ASM_ ## x ## l, #x "l") \
 691  DEF(TOK_ASM_ ## x, #x)
 692
 693 #ifdef TCC_TARGET_X86_64
 694
 695 #define DEF_BWLQ(x) \
 696  DEF(TOK_ASM_ ## x ## b, #x "b") \
 697  DEF(TOK_ASM_ ## x ## w, #x "w") \
 698  DEF(TOK_ASM_ ## x ## l, #x "l") \
 699  DEF(TOK_ASM_ ## x ## q, #x "q") \
 700  DEF(TOK_ASM_ ## x, #x)
 701
 702 #define DEF_WLQ(x) \
 703  DEF(TOK_ASM_ ## x ## w, #x "w") \
 704  DEF(TOK_ASM_ ## x ## l, #x "l") \
 705  DEF(TOK_ASM_ ## x ## q, #x "q") \
 706  DEF(TOK_ASM_ ## x, #x)
 707
 708 #endif
 709
 710 #define DEF_FP1(x) \
 711  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 712  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 713  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 714  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 715
 716 #define DEF_FP(x) \
 717  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 718  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 719  DEF_FP1(x)
 720
 721 #define DEF_ASMTEST(x) \
 722  DEF_ASM(x ## o) \
 723  DEF_ASM(x ## no) \
 724  DEF_ASM(x ## b) \
 725  DEF_ASM(x ## c) \
 726  DEF_ASM(x ## nae) \
 727  DEF_ASM(x ## nb) \
 728  DEF_ASM(x ## nc) \
 729  DEF_ASM(x ## ae) \
 730  DEF_ASM(x ## e) \
 731  DEF_ASM(x ## z) \
 732  DEF_ASM(x ## ne) \
 733  DEF_ASM(x ## nz) \
 734  DEF_ASM(x ## be) \
 735  DEF_ASM(x ## na) \
 736  DEF_ASM(x ## nbe) \
 737  DEF_ASM(x ## a) \
 738  DEF_ASM(x ## s) \
 739  DEF_ASM(x ## ns) \
 740  DEF_ASM(x ## p) \
 741  DEF_ASM(x ## pe) \
 742  DEF_ASM(x ## np) \
 743  DEF_ASM(x ## po) \
 744  DEF_ASM(x ## l) \
 745  DEF_ASM(x ## nge) \
 746  DEF_ASM(x ## nl) \
 747  DEF_ASM(x ## ge) \
 748  DEF_ASM(x ## le) \
 749  DEF_ASM(x ## ng) \
 750  DEF_ASM(x ## nle) \
 751  DEF_ASM(x ## g)
 752
 753 #define TOK_ASM_int TOK_INT
 754
 755 enum tcc_token {
 756     TOK_LAST = TOK_IDENT - 1,
 757 #define DEF(id, str) id,
 758 #include "tcctok.h"
 759 #undef DEF
 760 };
 761
 762 #define TOK_UIDENT TOK_DEFINE
 763
 764 #ifdef _WIN32
 765 #define snprintf _snprintf
 766 #define vsnprintf _vsnprintf
 767 #ifndef __GNUC__
 768   #define strtold (long double)strtod
 769   #define strtof (float)strtod
 770   #define strtoll (long long)strtol
 771 #endif
 772 #elif defined(TCC_UCLIBC) || defined(__FreeBSD__) || defined(__DragonFly__) \
 773     || defined(__OpenBSD__)
 774 /* currently incorrect */
 775 long double strtold(const char *nptr, char **endptr)
 776 {
 777     return (long double)strtod(nptr, endptr);
 778 }
 779 float strtof(const char *nptr, char **endptr)
 780 {
 781     return (float)strtod(nptr, endptr);
 782 }
 783 #else
 784 /* XXX: need to define this to use them in non ISOC99 context */
 785 extern float strtof (const char *__nptr, char **__endptr);
 786 extern long double strtold (const char *__nptr, char **__endptr);
 787 #endif
 788
 789 #ifdef _WIN32
 790 #define IS_PATHSEP(c) (c == '/' || c == '\\')
 791 #define IS_ABSPATH(p) (IS_PATHSEP(p[0]) || (p[0] && p[1] == ':' && IS_PATHSEP(p[2])))
 792 #define PATHCMP stricmp
 793 #else
 794 #define IS_PATHSEP(c) (c == '/')
 795 #define IS_ABSPATH(p) IS_PATHSEP(p[0])
 796 #define PATHCMP strcmp
 797 #endif
 798
 799 void error(const char *fmt, ...);
 800 void error_noabort(const char *fmt, ...);
 801 void warning(const char *fmt, ...);
 802
 803 void tcc_set_lib_path_w32(TCCState *s);
 804 int tcc_set_flag(TCCState *s, const char *flag_name, int value);
 805 void tcc_print_stats(TCCState *s, int64_t total_time);
 806
 807 void tcc_free(void *ptr);
 808 void *tcc_malloc(unsigned long size);
 809 void *tcc_mallocz(unsigned long size);
 810 void *tcc_realloc(void *ptr, unsigned long size);
 811 char *tcc_strdup(const char *str);
 812
 813 char *tcc_basename(const char *name);
 814 char *tcc_fileextension (const char *name);
 815 char *pstrcpy(char *buf, int buf_size, const char *s);
 816 char *pstrcat(char *buf, int buf_size, const char *s);
 817 void dynarray_add(void ***ptab, int *nb_ptr, void *data);
 818 void dynarray_reset(void *pp, int *n);
 819
 820 /* true if float/double/long double type */
 821 static inline int is_float(int t)
 822 {
 823     int bt;
 824     bt = t & VT_BTYPE;
 825     return bt == VT_LDOUBLE || bt == VT_DOUBLE || bt == VT_FLOAT;
 826 }
 827
 828 /* space exlcuding newline */
 829 static inline int is_space(int ch)
 830 {
 831     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 832 }
 833
 834 static inline int isid(int c)
 835 {
 836     return (c >= 'a' && c <= 'z')
 837         || (c >= 'A' && c <= 'Z')
 838         || c == '_';
 839 }
 840
 841 static inline int isnum(int c)
 842 {
 843     return c >= '0' && c <= '9';
 844 }
 845
 846 static inline int isoct(int c)
 847 {
 848     return c >= '0' && c <= '7';
 849 }
 850
 851 static inline int toup(int c)
 852 {
 853     if (c >= 'a' && c <= 'z')
 854         return c - 'a' + 'A';
 855     else
 856         return c;
 857 }
 858
 859 /* type handling */
 860 int type_size(CType *type, int *a);
 861 inline CType *pointed_type(CType *type);
 862 int pointed_size(CType *type);
 863 int lvalue_type(int t);
 864 int parse_btype(CType *type, AttributeDef *ad);
 865 void type_decl(CType *type, AttributeDef *ad, int *v, int td);
 866 int compare_types(CType *type1, CType *type2, int unqualified);
 867 int is_compatible_types(CType *type1, CType *type2);
 868 int is_compatible_parameter_types(CType *type1, CType *type2);
 869
 870 int ieee_finite(double d);
 871 void vpushi(int v);
 872 void vpushll(long long v);
 873 void vrott(int n);
 874 void vnrott(int n);
 875 void lexpand_nr(void);
 876 static void vpush_global_sym(CType *type, int v);
 877 void vset(CType *type, int r, int v);
 878 void type_to_str(char *buf, int buf_size,
 879                  CType *type, const char *varstr);
 880 Sym *get_sym_ref(CType *type, Section *sec,
 881                         unsigned long offset, unsigned long size);
 882 Sym *external_global_sym(int v, CType *type, int r);
 883
 884 int tcc_add_dll(TCCState *s, const char *filename, int flags);
 885
 886 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
 887 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
 888 #define AFF_PREPROCESS      0x0004 /* preprocess file */
 889 int tcc_add_file_internal(TCCState *s, const char *filename, int flags);
 890
 891
 892 Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
 893 void free_section(Section *s);
 894 void section_realloc(Section *sec, unsigned long new_size);
 895 void *section_ptr_add(Section *sec, unsigned long size);
 896 Section *find_section(TCCState *s1, const char *name);
 897 void put_extern_sym2(
 898     Sym *sym, Section *section,
 899     unsigned long value, unsigned long size, int can_add_underscore);
 900 void put_extern_sym(
 901     Sym *sym, Section *section,
 902     unsigned long value, unsigned long size);
 903 void greloc(Section *s, Sym *sym, unsigned long offset, int type);
 904
 905 void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap);
 906 void strcat_printf(char *buf, int buf_size, const char *fmt, ...);
 907
 908 BufferedFile *tcc_open(TCCState *s1, const char *filename);
 909 void tcc_close(BufferedFile *bf);
 910 int tcc_compile(TCCState *s1);
 911
 912 void expect(const char *msg);
 913 void skip(int c);
 914 void test_lvalue(void);
 915 void *resolve_sym(TCCState *s1, const char *sym);
 916
 917 /* interpret a subset of GNU ldscripts to handle the dummy libc.so
 918    files */
 919 int tcc_load_ldscript(TCCState *s1);
 920 /* load a DLL and all referenced DLLs. 'level = 0' means that the DLL
 921    is referenced by the user (so it should be added as DT_NEEDED in
 922    the generated ELF file) */
 923 int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
 924
 925 /********************************************************/
 926 /* global variables */
 927
 928 /* display benchmark infos */
 929 extern int total_lines;
 930 extern int total_bytes;
 931
 932 /* parser */
 933 extern struct BufferedFile *file;
 934 extern int ch, tok;
 935 extern CValue tokc;
 936 extern CString tokcstr; /* current parsed string, if any */
 937 /* additional informations about token */
 938 extern int tok_flags;
 939 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
 940 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
 941 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
 942 #define TOK_FLAG_EOF   0x0008 /* end of file */
 943
 944 extern int *macro_ptr, *macro_ptr_allocated;
 945 extern int *unget_saved_macro_ptr;
 946 extern int unget_saved_buffer[TOK_MAX_SIZE + 1];
 947 extern int unget_buffer_enabled;
 948 extern int parse_flags;
 949 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
 950 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
 951 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
 952                                         token. line feed is also
 953                                         returned at eof */
 954 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
 955 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
 956
 957 extern Section *text_section, *data_section, *bss_section; /* predefined sections */
 958 extern Section *cur_text_section; /* current section where function code is
 959                               generated */
 960 #ifdef CONFIG_TCC_ASM
 961 extern Section *last_text_section; /* to handle .previous asm directive */
 962 #endif
 963 /* bound check related sections */
 964 extern Section *bounds_section; /* contains global data bound description */
 965 extern Section *lbounds_section; /* contains local data bound description */
 966 /* symbol sections */
 967 extern Section *symtab_section, *strtab_section;
 968
 969 /* debug sections */
 970 extern Section *stab_section, *stabstr_section;
 971
 972 /* loc : local variable index
 973    ind : output code index
 974    rsym: return symbol
 975    anon_sym: anonymous symbol index
 976 */
 977 extern int rsym, anon_sym, ind, loc;
 978 /* expression generation modifiers */
 979 extern int const_wanted; /* true if constant wanted */
 980 extern int nocode_wanted; /* true if no code generation wanted for an expression */
 981 extern int global_expr;  /* true if compound literals must be allocated
 982                             globally (used during initializers parsing */
 983 extern CType func_vt; /* current function return type (used by return
 984                          instruction) */
 985 extern int func_vc;
 986 extern int last_line_num, last_ind, func_ind; /* debug last line number and pc */
 987 extern int tok_ident;
 988 extern TokenSym **table_ident;
 989 extern TokenSym *hash_ident[TOK_HASH_SIZE];
 990 extern char token_buf[STRING_MAX_SIZE + 1];
 991 extern char *funcname;
 992 extern Sym *global_stack, *local_stack;
 993 extern Sym *define_stack;
 994 extern Sym *global_label_stack, *local_label_stack;
 995 /* symbol allocator */
 996 #define SYM_POOL_NB (8192 / sizeof(Sym))
 997 extern Sym *sym_free_first;
 998 extern void **sym_pools;
 999 extern int nb_sym_pools;
1000
1001 extern SValue vstack[VSTACK_SIZE], *vtop;
1002 /* some predefined types */
1003 extern CType char_pointer_type, func_old_type, int_type;
1004
1005 /* use GNU C extensions */
1006 extern int gnu_ext;
1007
1008 /* use Tiny C extensions */
1009 extern int tcc_ext;
1010
1011 /* max number of callers shown if error */
1012 #ifdef CONFIG_TCC_BACKTRACE
1013 extern int num_callers;
1014 extern const char **rt_bound_error_msg;
1015 extern unsigned long rt_prog_main;
1016 #endif
1017
1018 /* XXX: get rid of this ASAP */
1019 extern struct TCCState *tcc_state;
1020
1021 /*
1022  * Include the target specific definitions.
1023  */
1024 #ifdef TCC_TARGET_I386
1025 #include "i386-gen.h"
1026 #endif
1027
1028 #ifdef TCC_TARGET_ARM
1029 #include "arm-gen.h"
1030 #endif
1031
1032 #ifdef TCC_TARGET_C67
1033 #include "c67-gen.h"
1034 #endif
1035
1036 #ifdef TCC_TARGET_X86_64
1037 #include "x86_64-gen.h"
1038 #endif
1039
1040 #include "tccpp.h"
1041 #include "tcccoff.h"
1042 #include "tccelf.h"
1043 #include "tcccstring.h"
1044 #include "tccgen.h"
1045 #include "tccasm.h"
1046 #include "tccld.h"
1047 #include "tccsym.h"
1048 #include "tccutil.h"
1049 #include "tccargs.h"
1050
1051 #ifdef TCC_TARGET_PE
1052 #include "tccpe.h"
1053 #endif
1054
1055
1056 #endif /* __TCC_H__ */