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 <process.h>
  48 #include <sys/timeb.h>
  49 #include <io.h> /* open, close etc. */
  50 #include <direct.h> /* getcwd */
  51 #define inline __inline
  52 #define inp next_inp
  53 #ifdef _WIN64
  54 #define uplong unsigned long long
  55 #endif
  56 #endif
  57
  58 #ifndef _WIN32
  59 #include <unistd.h>
  60 #include <sys/time.h>
  61 #include <sys/ucontext.h>
  62 #include <sys/mman.h>
  63 #include <dlfcn.h>
  64 #endif
  65
  66 #endif /* !CONFIG_TCCBOOT */
  67
  68 #ifndef uplong
  69 #define uplong unsigned long
  70 #endif
  71
  72 #ifndef PAGESIZE
  73 #define PAGESIZE 4096
  74 #endif
  75
  76 #include "elf.h"
  77 #include "stab.h"
  78
  79 #ifndef O_BINARY
  80 #define O_BINARY 0
  81 #endif
  82
  83 #ifndef SA_SIGINFO
  84 #define SA_SIGINFO 0x00000004u
  85 #endif
  86
  87 #include "libtcc.h"
  88
  89 /* parser debug */
  90 //#define PARSE_DEBUG
  91 /* preprocessor debug */
  92 //#define PP_DEBUG
  93 /* include file debug */
  94 //#define INC_DEBUG
  95
  96 //#define MEM_DEBUG
  97
  98 /* assembler debug */
  99 //#define ASM_DEBUG
 100
 101 /* target selection */
 102 //#define TCC_TARGET_I386   /* i386 code generator */
 103 //#define TCC_TARGET_ARM    /* ARMv4 code generator */
 104 //#define TCC_TARGET_C67    /* TMS320C67xx code generator */
 105 //#define TCC_TARGET_X86_64 /* x86-64 code generator */
 106
 107 /* default target is I386 */
 108 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 109     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 110 #define TCC_TARGET_I386
 111 #endif
 112
 113 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 114     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 115 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 116 #endif
 117
 118 #if defined(_WIN32) && !defined(TCC_TARGET_PE)
 119 #define CONFIG_TCC_STATIC
 120 #endif
 121
 122 /* define it to include assembler support */
 123 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 124 #define CONFIG_TCC_ASM
 125 #endif
 126
 127 /* object format selection */
 128 #if defined(TCC_TARGET_C67)
 129 #define TCC_TARGET_COFF
 130 #endif
 131
 132 #if !defined(CONFIG_TCCBOOT)
 133 #define CONFIG_TCC_BACKTRACE
 134 #endif
 135
 136 #define FALSE 0
 137 #define false 0
 138 #define TRUE 1
 139 #define true 1
 140 typedef int BOOL;
 141
 142 /* path to find crt1.o, crti.o and crtn.o. Only needed when generating
 143    executables or dlls */
 144
 145 #ifndef CONFIG_TCC_LDDIR
 146   #if defined(TCC_TARGET_X86_64_CENTOS)
 147     #define CONFIG_TCC_LDDIR "/lib64"
 148   #else
 149     #define CONFIG_TCC_LDDIR "/lib"
 150   #endif
 151 #endif
 152 #define CONFIG_TCC_CRT_PREFIX CONFIG_SYSROOT "/usr" CONFIG_TCC_LDDIR
 153 #ifndef CONFIG_TCC_INCSUBDIR
 154   #define CONFIG_TCC_INCSUBDIR ""
 155 #endif
 156
 157 #define INCLUDE_STACK_SIZE  32
 158 #define IFDEF_STACK_SIZE    64
 159 #define VSTACK_SIZE         256
 160 #define STRING_MAX_SIZE     1024
 161 #define PACK_STACK_SIZE     8
 162
 163 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 164 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 165 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 166
 167 /* token symbol management */
 168 typedef struct TokenSym {
 169     struct TokenSym *hash_next;
 170     struct Sym *sym_define; /* direct pointer to define */
 171     struct Sym *sym_label; /* direct pointer to label */
 172     struct Sym *sym_struct; /* direct pointer to structure */
 173     struct Sym *sym_identifier; /* direct pointer to identifier */
 174     int tok; /* token number */
 175     int len;
 176     char str[1];
 177 } TokenSym;
 178
 179 #ifdef TCC_TARGET_PE
 180 typedef unsigned short nwchar_t;
 181 #else
 182 typedef int nwchar_t;
 183 #endif
 184
 185 typedef struct CString {
 186     int size; /* size in bytes */
 187     void *data; /* either 'char *' or 'nwchar_t *' */
 188     int size_allocated;
 189     void *data_allocated; /* if non NULL, data has been malloced */
 190 } CString;
 191
 192 /* type definition */
 193 typedef struct CType {
 194     int t;
 195     struct Sym *ref;
 196 } CType;
 197
 198 /* constant value */
 199 typedef union CValue {
 200     long double ld;
 201     double d;
 202     float f;
 203     int i;
 204     unsigned int ui;
 205     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 206     long long ll;
 207     unsigned long long ull;
 208     struct CString *cstr;
 209     void *ptr;
 210     int tab[2];
 211 } CValue;
 212
 213 /* value on stack */
 214 typedef struct SValue {
 215     CType type;      /* type */
 216     unsigned short r;      /* register + flags */
 217     unsigned short r2;     /* second register, used for 'long long'
 218                               type. If not used, set to VT_CONST */
 219     CValue c;              /* constant, if VT_CONST */
 220     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 221 } SValue;
 222
 223 /* symbol management */
 224 typedef struct Sym {
 225     int v;    /* symbol token */
 226     char *asm_label;    /* associated asm label */
 227     long r;    /* associated register */
 228     union {
 229         long c;    /* associated number */
 230         int *d;   /* define token stream */
 231     };
 232     CType type;    /* associated type */
 233     union {
 234         struct Sym *next; /* next related symbol */
 235         long jnext; /* next jump label */
 236     };
 237     struct Sym *prev; /* prev symbol in stack */
 238     struct Sym *prev_tok; /* previous symbol for this token */
 239 } Sym;
 240
 241 /* section definition */
 242 /* XXX: use directly ELF structure for parameters ? */
 243 /* special flag to indicate that the section should not be linked to
 244    the other ones */
 245 #define SHF_PRIVATE 0x80000000
 246
 247 /* special flag, too */
 248 #define SECTION_ABS ((void *)1)
 249
 250 typedef struct Section {
 251     unsigned long data_offset; /* current data offset */
 252     unsigned char *data;       /* section data */
 253     unsigned long data_allocated; /* used for realloc() handling */
 254     int sh_name;             /* elf section name (only used during output) */
 255     int sh_num;              /* elf section number */
 256     int sh_type;             /* elf section type */
 257     int sh_flags;            /* elf section flags */
 258     int sh_info;             /* elf section info */
 259     int sh_addralign;        /* elf section alignment */
 260     int sh_entsize;          /* elf entry size */
 261     unsigned long sh_size;   /* section size (only used during output) */
 262     unsigned long sh_addr;      /* address at which the section is relocated */
 263     unsigned long sh_offset;    /* file offset */
 264     int nb_hashed_syms;      /* used to resize the hash table */
 265     struct Section *link;    /* link to another section */
 266     struct Section *reloc;   /* corresponding section for relocation, if any */
 267     struct Section *hash;     /* hash table for symbols */
 268     struct Section *next;
 269     char name[1];           /* section name */
 270 } Section;
 271
 272 typedef struct DLLReference {
 273     int level;
 274     void *handle;
 275     char name[1];
 276 } DLLReference;
 277
 278 /* GNUC attribute definition */
 279 typedef struct AttributeDef {
 280     unsigned
 281       func_call     : 3, /* calling convention (0..5), see below */
 282       aligned       : 5, /* alignement (0..16) */
 283       packed        : 1,
 284       func_export   : 1,
 285       func_import   : 1,
 286       func_args     : 5,
 287       mode          : 4,
 288       weak          : 1,
 289       fill          : 11;
 290     struct Section *section;
 291     int alias_target;    /* token */
 292 } AttributeDef;
 293
 294 /* gr: wrappers for casting sym->r for other purposes */
 295 #define FUNC_CALL(r) (((AttributeDef*)&(r))->func_call)
 296 #define FUNC_EXPORT(r) (((AttributeDef*)&(r))->func_export)
 297 #define FUNC_IMPORT(r) (((AttributeDef*)&(r))->func_import)
 298 #define FUNC_ARGS(r) (((AttributeDef*)&(r))->func_args)
 299 #define FUNC_ALIGN(r) (((AttributeDef*)&(r))->aligned)
 300 #define FUNC_PACKED(r) (((AttributeDef*)&(r))->packed)
 301 #define ATTR_MODE(r)  (((AttributeDef*)&(r))->mode)
 302 #define INT_ATTR(ad) (*(int*)(ad))
 303
 304 /* -------------------------------------------------- */
 305
 306 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 307 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 308 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 309
 310 /* stored in 'Sym.c' field */
 311 #define FUNC_NEW       1 /* ansi function prototype */
 312 #define FUNC_OLD       2 /* old function prototype */
 313 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 314
 315 /* stored in 'Sym.r' field */
 316 #define FUNC_CDECL     0 /* standard c call */
 317 #define FUNC_STDCALL   1 /* pascal c call */
 318 #define FUNC_FASTCALL1 2 /* first param in %eax */
 319 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 320 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 321 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 322
 323 /* field 'Sym.t' for macros */
 324 #define MACRO_OBJ      0 /* object like macro */
 325 #define MACRO_FUNC     1 /* function like macro */
 326
 327 /* field 'Sym.r' for C labels */
 328 #define LABEL_DEFINED  0 /* label is defined */
 329 #define LABEL_FORWARD  1 /* label is forward defined */
 330 #define LABEL_DECLARED 2 /* label is declared but never used */
 331
 332 /* type_decl() types */
 333 #define TYPE_ABSTRACT  1 /* type without variable */
 334 #define TYPE_DIRECT    2 /* type with variable */
 335
 336 #define IO_BUF_SIZE 8192
 337
 338 typedef struct BufferedFile {
 339     uint8_t *buf_ptr;
 340     uint8_t *buf_end;
 341     int fd;
 342     struct BufferedFile *prev;
 343     int line_num;    /* current line number - here to simplify code */
 344     int ifndef_macro;  /* #ifndef macro / #endif search */
 345     int ifndef_macro_saved; /* saved ifndef_macro */
 346     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 347     char inc_type;          /* type of include */
 348     char inc_filename[512]; /* filename specified by the user */
 349     char filename[1024];    /* current filename - here to simplify code */
 350     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 351 } BufferedFile;
 352
 353 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 354 #define CH_EOF   (-1)   /* end of file */
 355
 356 /* parsing state (used to save parser state to reparse part of the
 357    source several times) */
 358 typedef struct ParseState {
 359     const int *macro_ptr;
 360     int line_num;
 361     int tok;
 362     CValue tokc;
 363 } ParseState;
 364
 365 /* used to record tokens */
 366 typedef struct TokenString {
 367     int *str;
 368     int len;
 369     int allocated_len;
 370     int last_line_num;
 371 } TokenString;
 372
 373 /* inline functions */
 374 typedef struct InlineFunc {
 375     int *token_str;
 376     Sym *sym;
 377     char filename[1];
 378 } InlineFunc;
 379
 380 /* include file cache, used to find files faster and also to eliminate
 381    inclusion if the include file is protected by #ifndef ... #endif */
 382 typedef struct CachedInclude {
 383     int ifndef_macro;
 384     int hash_next; /* -1 if none */
 385     char type; /* '"' or '>' to give include type */
 386     char filename[1]; /* path specified in #include */
 387 } CachedInclude;
 388
 389 #define CACHED_INCLUDES_HASH_SIZE 512
 390
 391 #ifdef CONFIG_TCC_ASM
 392 typedef struct ExprValue {
 393     uint32_t v;
 394     Sym *sym;
 395 } ExprValue;
 396
 397 #define MAX_ASM_OPERANDS 30
 398 typedef struct ASMOperand {
 399     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 400     char *constraint;
 401     char asm_str[16]; /* computed asm string for operand */
 402     SValue *vt; /* C value of the expression */
 403     int ref_index; /* if >= 0, gives reference to a output constraint */
 404     int input_index; /* if >= 0, gives reference to an input constraint */
 405     int priority; /* priority, used to assign registers */
 406     int reg; /* if >= 0, register number used for this operand */
 407     int is_llong; /* true if double register value */
 408     int is_memory; /* true if memory operand */
 409     int is_rw;     /* for '+' modifier */
 410 } ASMOperand;
 411 #endif
 412
 413 struct TCCState {
 414     unsigned output_type    : 8;
 415     unsigned reloc_output   : 1;
 416
 417     BufferedFile **include_stack_ptr;
 418     int *ifdef_stack_ptr;
 419
 420     /* include file handling */
 421     char **include_paths;
 422     int nb_include_paths;
 423     char **sysinclude_paths;
 424     int nb_sysinclude_paths;
 425     CachedInclude **cached_includes;
 426     int nb_cached_includes;
 427
 428     char **library_paths;
 429     int nb_library_paths;
 430
 431     /* array of all loaded dlls (including those referenced by loaded
 432        dlls) */
 433     DLLReference **loaded_dlls;
 434     int nb_loaded_dlls;
 435
 436     /* sections */
 437     Section **sections;
 438     int nb_sections; /* number of sections, including first dummy section */
 439
 440     Section **priv_sections;
 441     int nb_priv_sections; /* number of private sections */
 442
 443     /* got handling */
 444     Section *got;
 445     Section *plt;
 446     unsigned long *got_offsets;
 447     int nb_got_offsets;
 448     /* give the correspondance from symtab indexes to dynsym indexes */
 449     int *symtab_to_dynsym;
 450
 451     /* temporary dynamic symbol sections (for dll loading) */
 452     Section *dynsymtab_section;
 453     /* exported dynamic symbol section */
 454     Section *dynsym;
 455
 456     int nostdinc; /* if true, no standard headers are added */
 457     int nostdlib; /* if true, no standard libraries are added */
 458     int nocommon; /* if true, do not use common symbols for .bss data */
 459
 460     /* if true, static linking is performed */
 461     int static_link;
 462
 463     /* soname as specified on the command line (-soname) */
 464     const char *soname;
 465     /* rpath as specified on the command line (-Wl,-rpath=) */
 466     const char *rpath;
 467
 468     /* if true, all symbols are exported */
 469     int rdynamic;
 470
 471     /* if true, resolve symbols in the current module first (-Wl,Bsymbolic) */
 472     int symbolic;
 473
 474     /* if true, only link in referenced objects from archive */
 475     int alacarte_link;
 476
 477     /* address of text section */
 478     unsigned long text_addr;
 479     int has_text_addr;
 480
 481     /* symbols to call at load-time / unload-time */
 482     const char *init_symbol;
 483     const char *fini_symbol;
 484
 485     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 486     int output_format;
 487
 488     /* C language options */
 489     int char_is_unsigned;
 490     int leading_underscore;
 491
 492     /* warning switches */
 493     int warn_write_strings;
 494     int warn_unsupported;
 495     int warn_error;
 496     int warn_none;
 497     int warn_implicit_function_declaration;
 498
 499     /* display some information during compilation */
 500     int verbose;
 501     /* compile with debug symbol (and use them if error during execution) */
 502     int do_debug;
 503 #ifdef CONFIG_TCC_BCHECK
 504     /* compile with built-in memory and bounds checker */
 505     int do_bounds_check;
 506 #endif
 507     /* give the path of the tcc libraries */
 508     char *tcc_lib_path;
 509
 510     /* error handling */
 511     void *error_opaque;
 512     void (*error_func)(void *opaque, const char *msg);
 513     int error_set_jmp_enabled;
 514     jmp_buf error_jmp_buf;
 515     int nb_errors;
 516
 517     /* tiny assembler state */
 518     Sym *asm_labels;
 519
 520     /* see include_stack_ptr */
 521     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 522
 523     /* see ifdef_stack_ptr */
 524     int ifdef_stack[IFDEF_STACK_SIZE];
 525
 526     /* see cached_includes */
 527     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 528
 529     /* pack stack */
 530     int pack_stack[PACK_STACK_SIZE];
 531     int *pack_stack_ptr;
 532
 533     /* output file for preprocessing */
 534     FILE *outfile;
 535
 536     /* input files and libraries for this compilation */
 537     char **input_files;
 538     int nb_input_files;
 539     char **input_libs;
 540     int nb_input_libs;
 541
 542     /* automatically collected dependencies for this compilation */
 543     char **target_deps;
 544     int nb_target_deps;
 545
 546     /* for tcc_relocate */
 547     int runtime_added;
 548     void *runtime_mem;
 549 #ifdef HAVE_SELINUX
 550     void *write_mem;
 551     unsigned long mem_size;
 552 #endif
 553
 554     struct InlineFunc **inline_fns;
 555     int nb_inline_fns;
 556
 557 #ifdef TCC_TARGET_I386
 558     int seg_size;
 559 #endif
 560
 561     /* section alignment */
 562     unsigned long section_align;
 563
 564 #ifdef TCC_TARGET_PE
 565     /* PE info */
 566     int pe_subsystem;
 567     unsigned long pe_file_align;
 568     unsigned long pe_stack_size;
 569 #ifdef TCC_TARGET_X86_64
 570     Section *uw_pdata;
 571     int uw_sym;
 572     unsigned uw_offs;
 573 #endif
 574 #endif
 575
 576 #ifndef TCC_TARGET_PE
 577 #if defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM
 578     /* write PLT and GOT here */
 579     char *runtime_plt_and_got;
 580     unsigned int runtime_plt_and_got_offset;
 581 #endif
 582 #endif
 583 };
 584
 585 /* The current value can be: */
 586 #define VT_VALMASK   0x001f
 587 #define VT_CONST     0x0010  /* constant in vc
 588                               (must be first non register value) */
 589 #define VT_LLOCAL    0x0011  /* lvalue, offset on stack */
 590 #define VT_LOCAL     0x0012  /* offset on stack */
 591 #define VT_CMP       0x0013  /* the value is stored in processor flags (in vc) */
 592 #define VT_JMP       0x0014  /* value is the consequence of jmp true (even) */
 593 #define VT_JMPI      0x0015  /* value is the consequence of jmp false (odd) */
 594 #define VT_LVAL      0x0100  /* var is an lvalue */
 595 #define VT_SYM       0x0200  /* a symbol value is added */
 596 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 597                                 char/short stored in integer registers) */
 598 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 599                                 dereferencing value */
 600 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 601                                 bounding function call point is in vc */
 602 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 603 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 604 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 605 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 606
 607 #define VT_REF       0x0020
 608
 609 /* types */
 610 #define VT_INT        0  /* integer type */
 611 #define VT_BYTE       1  /* signed byte type */
 612 #define VT_SHORT      2  /* short type */
 613 #define VT_VOID       3  /* void type */
 614 #define VT_PTR        4  /* pointer */
 615 #define VT_ENUM       5  /* enum definition */
 616 #define VT_FUNC       6  /* function type */
 617 #define VT_STRUCT     7  /* struct/union definition */
 618 #define VT_FLOAT      8  /* IEEE float */
 619 #define VT_DOUBLE     9  /* IEEE double */
 620 #define VT_LDOUBLE   10  /* IEEE long double */
 621 #define VT_BOOL      11  /* ISOC99 boolean type */
 622 #define VT_LLONG     12  /* 64 bit integer */
 623 #define VT_LONG      13  /* long integer (NEVER USED as type, only
 624                             during parsing) */
 625 #define VT_BTYPE      0x000f /* mask for basic type */
 626 #define VT_UNSIGNED   0x0010  /* unsigned type */
 627 #define VT_ARRAY      0x0020  /* array type (also has VT_PTR) */
 628 #define VT_VLA        0x20000 /* VLA type (also has VT_PTR and VT_ARRAY) */
 629 #define VT_BITFIELD   0x0040  /* bitfield modifier */
 630 #define VT_CONSTANT   0x0800  /* const modifier */
 631 #define VT_VOLATILE   0x1000  /* volatile modifier */
 632 #define VT_SIGNED     0x2000  /* signed type */
 633
 634 /* storage */
 635 #define VT_EXTERN  0x00000080  /* extern definition */
 636 #define VT_STATIC  0x00000100  /* static variable */
 637 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 638 #define VT_INLINE  0x00000400  /* inline definition */
 639 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 640 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 641 #define VT_WEAK    0x00010000  /* win32: data exported from dll */
 642
 643 #define VT_STRUCT_SHIFT 18   /* shift for bitfield shift values */
 644
 645 /* type mask (except storage) */
 646 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 647 #define VT_TYPE    (~(VT_STORAGE))
 648
 649 /* token values */
 650
 651 /* warning: the following compare tokens depend on i386 asm code */
 652 #define TOK_ULT 0x92
 653 #define TOK_UGE 0x93
 654 #define TOK_EQ  0x94
 655 #define TOK_NE  0x95
 656 #define TOK_ULE 0x96
 657 #define TOK_UGT 0x97
 658 #define TOK_Nset 0x98
 659 #define TOK_Nclear 0x99
 660 #define TOK_LT  0x9c
 661 #define TOK_GE  0x9d
 662 #define TOK_LE  0x9e
 663 #define TOK_GT  0x9f
 664
 665 #define TOK_LAND  0xa0
 666 #define TOK_LOR   0xa1
 667
 668 #define TOK_DEC   0xa2
 669 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 670 #define TOK_INC   0xa4
 671 #define TOK_UDIV  0xb0 /* unsigned division */
 672 #define TOK_UMOD  0xb1 /* unsigned modulo */
 673 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 674 #define TOK_CINT   0xb3 /* number in tokc */
 675 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 676 #define TOK_STR   0xb5 /* pointer to string in tokc */
 677 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 678 #define TOK_LCHAR    0xb7
 679 #define TOK_LSTR     0xb8
 680 #define TOK_CFLOAT   0xb9 /* float constant */
 681 #define TOK_LINENUM  0xba /* line number info */
 682 #define TOK_CDOUBLE  0xc0 /* double constant */
 683 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 684 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 685 #define TOK_ADDC1    0xc3 /* add with carry generation */
 686 #define TOK_ADDC2    0xc4 /* add with carry use */
 687 #define TOK_SUBC1    0xc5 /* add with carry generation */
 688 #define TOK_SUBC2    0xc6 /* add with carry use */
 689 #define TOK_CUINT    0xc8 /* unsigned int constant */
 690 #define TOK_CLLONG   0xc9 /* long long constant */
 691 #define TOK_CULLONG  0xca /* unsigned long long constant */
 692 #define TOK_ARROW    0xcb
 693 #define TOK_DOTS     0xcc /* three dots */
 694 #define TOK_SHR      0xcd /* unsigned shift right */
 695 #define TOK_PPNUM    0xce /* preprocessor number */
 696 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 697
 698 #define TOK_SHL   0x01 /* shift left */
 699 #define TOK_SAR   0x02 /* signed shift right */
 700
 701 /* assignement operators : normal operator or 0x80 */
 702 #define TOK_A_MOD 0xa5
 703 #define TOK_A_AND 0xa6
 704 #define TOK_A_MUL 0xaa
 705 #define TOK_A_ADD 0xab
 706 #define TOK_A_SUB 0xad
 707 #define TOK_A_DIV 0xaf
 708 #define TOK_A_XOR 0xde
 709 #define TOK_A_OR  0xfc
 710 #define TOK_A_SHL 0x81
 711 #define TOK_A_SAR 0x82
 712
 713 #ifndef offsetof
 714 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 715 #endif
 716
 717 #ifndef countof
 718 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 719 #endif
 720
 721 #define TOK_EOF       (-1)  /* end of file */
 722 #define TOK_LINEFEED  10    /* line feed */
 723
 724 /* all identificators and strings have token above that */
 725 #define TOK_IDENT 256
 726
 727 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 728 #define TOK_ASM_int TOK_INT
 729 #define TOK_ASM_weak TOK_WEAK1
 730
 731 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 732 /* only used for i386 asm opcodes definitions */
 733 #define DEF_BWL(x) \
 734  DEF(TOK_ASM_ ## x ## b, #x "b") \
 735  DEF(TOK_ASM_ ## x ## w, #x "w") \
 736  DEF(TOK_ASM_ ## x ## l, #x "l") \
 737  DEF(TOK_ASM_ ## x, #x)
 738 #define DEF_WL(x) \
 739  DEF(TOK_ASM_ ## x ## w, #x "w") \
 740  DEF(TOK_ASM_ ## x ## l, #x "l") \
 741  DEF(TOK_ASM_ ## x, #x)
 742 #ifdef TCC_TARGET_X86_64
 743 # define DEF_BWLQ(x) \
 744  DEF(TOK_ASM_ ## x ## b, #x "b") \
 745  DEF(TOK_ASM_ ## x ## w, #x "w") \
 746  DEF(TOK_ASM_ ## x ## l, #x "l") \
 747  DEF(TOK_ASM_ ## x ## q, #x "q") \
 748  DEF(TOK_ASM_ ## x, #x)
 749 # define DEF_WLQ(x) \
 750  DEF(TOK_ASM_ ## x ## w, #x "w") \
 751  DEF(TOK_ASM_ ## x ## l, #x "l") \
 752  DEF(TOK_ASM_ ## x ## q, #x "q") \
 753  DEF(TOK_ASM_ ## x, #x)
 754 # define DEF_BWLX DEF_BWLQ
 755 # define DEF_WLX DEF_WLQ
 756 /* number of sizes + 1 */
 757 # define NBWLX 5
 758 #else
 759 # define DEF_BWLX DEF_BWL
 760 # define DEF_WLX DEF_WL
 761 /* number of sizes + 1 */
 762 # define NBWLX 4
 763 #endif
 764
 765 #define DEF_FP1(x) \
 766  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 767  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 768  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 769  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 770
 771 #define DEF_FP(x) \
 772  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 773  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 774  DEF_FP1(x)
 775
 776 #define DEF_ASMTEST(x) \
 777  DEF_ASM(x ## o) \
 778  DEF_ASM(x ## no) \
 779  DEF_ASM(x ## b) \
 780  DEF_ASM(x ## c) \
 781  DEF_ASM(x ## nae) \
 782  DEF_ASM(x ## nb) \
 783  DEF_ASM(x ## nc) \
 784  DEF_ASM(x ## ae) \
 785  DEF_ASM(x ## e) \
 786  DEF_ASM(x ## z) \
 787  DEF_ASM(x ## ne) \
 788  DEF_ASM(x ## nz) \
 789  DEF_ASM(x ## be) \
 790  DEF_ASM(x ## na) \
 791  DEF_ASM(x ## nbe) \
 792  DEF_ASM(x ## a) \
 793  DEF_ASM(x ## s) \
 794  DEF_ASM(x ## ns) \
 795  DEF_ASM(x ## p) \
 796  DEF_ASM(x ## pe) \
 797  DEF_ASM(x ## np) \
 798  DEF_ASM(x ## po) \
 799  DEF_ASM(x ## l) \
 800  DEF_ASM(x ## nge) \
 801  DEF_ASM(x ## nl) \
 802  DEF_ASM(x ## ge) \
 803  DEF_ASM(x ## le) \
 804  DEF_ASM(x ## ng) \
 805  DEF_ASM(x ## nle) \
 806  DEF_ASM(x ## g)
 807
 808 #endif // defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 809
 810 enum tcc_token {
 811     TOK_LAST = TOK_IDENT - 1,
 812 #define DEF(id, str) id,
 813 #include "tcctok.h"
 814 #undef DEF
 815 };
 816
 817 #define TOK_UIDENT TOK_DEFINE
 818
 819 #ifdef _WIN32
 820 #define snprintf _snprintf
 821 #define vsnprintf _vsnprintf
 822 #ifndef __GNUC__
 823   #define strtold (long double)strtod
 824   #define strtof (float)strtod
 825   #define strtoll (long long)strtol
 826 #endif
 827 #elif defined(TCC_UCLIBC) || defined(__FreeBSD__) \
 828     || defined(__FreeBSD_kernel__) || defined(__DragonFly__) \
 829     || defined(__OpenBSD__)
 830 /* currently incorrect */
 831 static inline long double strtold(const char *nptr, char **endptr)
 832 {
 833     return (long double)strtod(nptr, endptr);
 834 }
 835 static inline float strtof(const char *nptr, char **endptr)
 836 {
 837     return (float)strtod(nptr, endptr);
 838 }
 839 #else
 840 /* XXX: need to define this to use them in non ISOC99 context */
 841 extern float strtof (const char *__nptr, char **__endptr);
 842 extern long double strtold (const char *__nptr, char **__endptr);
 843 #endif
 844
 845 #ifdef _WIN32
 846 #define IS_PATHSEP(c) (c == '/' || c == '\\')
 847 #define IS_ABSPATH(p) (IS_PATHSEP(p[0]) || (p[0] && p[1] == ':' && IS_PATHSEP(p[2])))
 848 #define PATHCMP stricmp
 849 #else
 850 #define IS_PATHSEP(c) (c == '/')
 851 #define IS_ABSPATH(p) IS_PATHSEP(p[0])
 852 #define PATHCMP strcmp
 853 #endif
 854
 855 /* space exlcuding newline */
 856 static inline int is_space(int ch)
 857 {
 858     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 859 }
 860
 861 static inline int isid(int c)
 862 {
 863     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 864 }
 865
 866 static inline int isnum(int c)
 867 {
 868     return c >= '0' && c <= '9';
 869 }
 870
 871 static inline int isoct(int c)
 872 {
 873     return c >= '0' && c <= '7';
 874 }
 875
 876 static inline int toup(int c)
 877 {
 878     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 879 }
 880
 881 #define PUB_FUNC
 882
 883 #ifdef ONE_SOURCE
 884 #define ST_INLN static inline
 885 #define ST_FUNC static
 886 #define ST_DATA static
 887 #else
 888 #define ST_INLN
 889 #define ST_FUNC
 890 #define ST_DATA extern
 891 #endif
 892
 893 /* ------------ libtcc.c ------------ */
 894
 895 /* use GNU C extensions */
 896 ST_DATA int gnu_ext;
 897 /* use Tiny C extensions */
 898 ST_DATA int tcc_ext;
 899 /* XXX: get rid of this ASAP */
 900 ST_DATA struct TCCState *tcc_state;
 901
 902 #ifdef CONFIG_TCC_BACKTRACE
 903 ST_DATA int num_callers;
 904 ST_DATA const char **rt_bound_error_msg;
 905 ST_DATA void *rt_prog_main;
 906 #endif
 907
 908 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
 909 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
 910 #define AFF_PREPROCESS      0x0004 /* preprocess file */
 911
 912 /* public functions currently used by the tcc main function */
 913 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
 914 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
 915 PUB_FUNC char *tcc_basename(const char *name);
 916 PUB_FUNC char *tcc_fileextension (const char *name);
 917 PUB_FUNC void tcc_free(void *ptr);
 918 PUB_FUNC void *tcc_malloc(unsigned long size);
 919 PUB_FUNC void *tcc_mallocz(unsigned long size);
 920 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
 921 PUB_FUNC char *tcc_strdup(const char *str);
 922 #define free(p) use_tcc_free(p)
 923 #define malloc(s) use_tcc_malloc(s)
 924 #define realloc(p, s) use_tcc_realloc(p, s)
 925 #undef strdup
 926 #define strdup(s) use_tcc_strdup(s)
 927 PUB_FUNC void tcc_memstats(void);
 928 PUB_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
 929 PUB_FUNC void dynarray_reset(void *pp, int *n);
 930 PUB_FUNC void error_noabort(const char *fmt, ...);
 931 PUB_FUNC void error(const char *fmt, ...);
 932 PUB_FUNC void expect(const char *msg);
 933 PUB_FUNC void warning(const char *fmt, ...);
 934
 935 /* other utilities */
 936 ST_INLN void cstr_ccat(CString *cstr, int ch);
 937 ST_FUNC void cstr_cat(CString *cstr, const char *str);
 938 ST_FUNC void cstr_wccat(CString *cstr, int ch);
 939 ST_FUNC void cstr_new(CString *cstr);
 940 ST_FUNC void cstr_free(CString *cstr);
 941 ST_FUNC void add_char(CString *cstr, int c);
 942 #define cstr_reset(cstr) cstr_free(cstr)
 943
 944 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
 945 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
 946 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
 947 ST_FUNC void section_reserve(Section *sec, unsigned long size);
 948 ST_FUNC Section *find_section(TCCState *s1, const char *name);
 949
 950 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, unsigned long value, unsigned long size, int can_add_underscore);
 951 ST_FUNC void put_extern_sym(Sym *sym, Section *section, unsigned long value, unsigned long size);
 952 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
 953
 954 ST_INLN void sym_free(Sym *sym);
 955 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
 956 ST_FUNC Sym *sym_find2(Sym *s, int v);
 957 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
 958 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
 959 ST_INLN Sym *struct_find(int v);
 960 ST_INLN Sym *sym_find(int v);
 961 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
 962
 963 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
 964 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
 965 ST_FUNC void tcc_close(void);
 966
 967 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
 968 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
 969 PUB_FUNC int tcc_set_flag(TCCState *s, const char *flag_name, int value);
 970 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
 971 PUB_FUNC void set_num_callers(int n);
 972
 973 ST_FUNC int ieee_finite(double d);
 974
 975 /* ------------ tccpp.c ------------ */
 976
 977 ST_DATA struct BufferedFile *file;
 978 ST_DATA int ch, tok;
 979 ST_DATA CValue tokc;
 980 ST_DATA const int *macro_ptr;
 981 ST_DATA int parse_flags;
 982 ST_DATA int tok_flags;
 983 ST_DATA CString tokcstr; /* current parsed string, if any */
 984
 985 /* display benchmark infos */
 986 ST_DATA int total_lines;
 987 ST_DATA int total_bytes;
 988 ST_DATA int tok_ident;
 989 ST_DATA TokenSym **table_ident;
 990
 991 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
 992 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
 993 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
 994 #define TOK_FLAG_EOF   0x0008 /* end of file */
 995
 996 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
 997 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
 998 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
 999                                         token. line feed is also
1000                                         returned at eof */
1001 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1002 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1003
1004 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1005 ST_FUNC char *get_tok_str(int v, CValue *cv);
1006 ST_FUNC void save_parse_state(ParseState *s);
1007 ST_FUNC void restore_parse_state(ParseState *s);
1008 ST_INLN void tok_str_new(TokenString *s);
1009 ST_FUNC void tok_str_free(int *str);
1010 ST_FUNC void tok_str_add(TokenString *s, int t);
1011 ST_FUNC void tok_str_add_tok(TokenString *s);
1012 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1013 ST_FUNC void define_undef(Sym *s);
1014 ST_INLN Sym *define_find(int v);
1015 ST_FUNC void free_defines(Sym *b);
1016 ST_FUNC Sym *label_find(int v);
1017 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1018 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1019 ST_FUNC void parse_define(void);
1020 ST_FUNC void preprocess(int is_bof);
1021 ST_FUNC void next_nomacro(void);
1022 ST_FUNC void next(void);
1023 ST_INLN void unget_tok(int last_tok);
1024 ST_FUNC void preprocess_init(TCCState *s1);
1025 ST_FUNC void preprocess_new();
1026 ST_FUNC int tcc_preprocess(TCCState *s1);
1027 ST_FUNC void skip(int c);
1028
1029 /* ------------ tccgen.c ------------ */
1030
1031 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1032 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1033 #ifdef CONFIG_TCC_ASM
1034 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1035 #endif
1036 #ifdef CONFIG_TCC_BCHECK
1037 /* bound check related sections */
1038 ST_DATA Section *bounds_section; /* contains global data bound description */
1039 ST_DATA Section *lbounds_section; /* contains local data bound description */
1040 #endif
1041 /* symbol sections */
1042 ST_DATA Section *symtab_section, *strtab_section;
1043 /* debug sections */
1044 ST_DATA Section *stab_section, *stabstr_section;
1045
1046 #define SYM_POOL_NB (8192 / sizeof(Sym))
1047 ST_DATA Sym *sym_free_first;
1048 ST_DATA void **sym_pools;
1049 ST_DATA int nb_sym_pools;
1050
1051 ST_DATA Sym *global_stack;
1052 ST_DATA Sym *local_stack;
1053 ST_DATA Sym *local_label_stack;
1054 ST_DATA Sym *global_label_stack;
1055 ST_DATA Sym *define_stack;
1056 ST_DATA CType char_pointer_type, func_old_type, int_type;
1057 ST_DATA SValue vstack[VSTACK_SIZE], *vtop;
1058 ST_DATA int rsym, anon_sym, ind, loc;
1059
1060 ST_DATA int const_wanted; /* true if constant wanted */
1061 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1062 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1063 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1064 ST_DATA int func_vc;
1065 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1066 ST_DATA char *funcname;
1067
1068 ST_INLN int is_float(int t);
1069 ST_FUNC void test_lvalue(void);
1070 ST_FUNC void swap(int *p, int *q);
1071 ST_FUNC void vpushi(int v);
1072 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1073 ST_FUNC void vset(CType *type, int r, int v);
1074 ST_FUNC void vswap(void);
1075 ST_FUNC void vpush_global_sym(CType *type, int v);
1076 ST_FUNC void vrott(int n);
1077 #ifdef TCC_TARGET_ARM
1078 ST_FUNC int get_reg_ex(int rc, int rc2);
1079 ST_FUNC void vnrott(int n);
1080 ST_FUNC void lexpand_nr(void);
1081 #endif
1082 ST_FUNC void vpushv(SValue *v);
1083 ST_FUNC void save_reg(int r);
1084 ST_FUNC int get_reg(int rc);
1085 ST_FUNC void save_regs(int n);
1086 ST_FUNC int gv(int rc);
1087 ST_FUNC void gv2(int rc1, int rc2);
1088 ST_FUNC void vpop(void);
1089 ST_FUNC void gen_op(int op);
1090 ST_FUNC int type_size(CType *type, int *a);
1091 ST_FUNC void mk_pointer(CType *type);
1092 ST_FUNC void vstore(void);
1093 ST_FUNC void inc(int post, int c);
1094 ST_FUNC void parse_asm_str(CString *astr);
1095 ST_FUNC int lvalue_type(int t);
1096 ST_FUNC void indir(void);
1097 ST_FUNC void unary(void);
1098 ST_FUNC void expr_prod(void);
1099 ST_FUNC void expr_sum(void);
1100 ST_FUNC void gexpr(void);
1101 ST_FUNC int expr_const(void);
1102 ST_FUNC void gen_inline_functions(void);
1103 ST_FUNC void decl(int l);
1104 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1105 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1106 #endif
1107
1108 /* ------------ tccelf.c ------------ */
1109
1110 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1111
1112 typedef struct {
1113     unsigned int n_strx;         /* index into string table of name */
1114     unsigned char n_type;         /* type of symbol */
1115     unsigned char n_other;        /* misc info (usually empty) */
1116     unsigned short n_desc;        /* description field */
1117     unsigned int n_value;        /* value of symbol */
1118 } Stab_Sym;
1119
1120 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);
1121
1122 ST_FUNC int put_elf_str(Section *s, const char *sym);
1123 ST_FUNC int put_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int shndx, const char *name);
1124 ST_FUNC int add_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int sh_num, const char *name);
1125 ST_FUNC int find_elf_sym(Section *s, const char *name);
1126 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1127
1128 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1129 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1130 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1131 ST_FUNC void put_stabd(int type, int other, int desc);
1132
1133 ST_FUNC void relocate_common_syms(void);
1134 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1135 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1136
1137 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1138 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1139 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1140 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1141 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1142
1143 ST_FUNC void build_got_entries(TCCState *s1);
1144 ST_FUNC void tcc_add_runtime(TCCState *s1);
1145
1146 #ifndef TCC_TARGET_PE
1147 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1148 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1149 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1150 ST_FUNC void minp(void);
1151 ST_INLN void inp(void);
1152 ST_FUNC int handle_eob(void);
1153 #endif
1154
1155 #ifdef TCC_TARGET_X86_64
1156 # define ELFCLASSW ELFCLASS64
1157 # define ElfW(type) Elf##64##_##type
1158 # define ELFW(type) ELF##64##_##type
1159 # define ElfW_Rel ElfW(Rela)
1160 # define SHT_RELX SHT_RELA
1161 # define REL_SECTION_FMT ".rela%s"
1162 /* XXX: DLL with PLT would only work with x86-64 for now */
1163 # define TCC_OUTPUT_DLL_WITH_PLT
1164 #else
1165 # define ELFCLASSW ELFCLASS32
1166 # define ElfW(type) Elf##32##_##type
1167 # define ELFW(type) ELF##32##_##type
1168 # define ElfW_Rel ElfW(Rel)
1169 # define SHT_RELX SHT_REL
1170 # define REL_SECTION_FMT ".rel%s"
1171 #endif
1172
1173 /* ------------ xxx-gen.c ------------ */
1174
1175 ST_FUNC void gsym_addr(int t, int a);
1176 ST_FUNC void gsym(int t);
1177 ST_FUNC void load(int r, SValue *sv);
1178 ST_FUNC void store(int r, SValue *v);
1179 ST_FUNC void gfunc_call(int nb_args);
1180 ST_FUNC void gfunc_prolog(CType *func_type);
1181 ST_FUNC void gfunc_epilog(void);
1182 ST_FUNC int gjmp(int t);
1183 ST_FUNC void gjmp_addr(int a);
1184 ST_FUNC int gtst(int inv, int t);
1185 ST_FUNC void gen_opi(int op);
1186 ST_FUNC void gen_opf(int op);
1187 ST_FUNC void gen_cvt_ftoi(int t);
1188 ST_FUNC void gen_cvt_ftof(int t);
1189 ST_FUNC void ggoto(void);
1190 #ifndef TCC_TARGET_C67
1191 ST_FUNC void o(unsigned int c);
1192 #endif
1193 #ifndef TCC_TARGET_ARM
1194 ST_FUNC void gen_cvt_itof(int t);
1195 #endif
1196
1197 /* ------------ i386-gen.c ------------ */
1198 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1199 ST_FUNC void g(int c);
1200 ST_FUNC int oad(int c, int s);
1201 ST_FUNC void gen_le16(int c);
1202 ST_FUNC void gen_le32(int c);
1203 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1204 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1205 #endif
1206
1207 #ifdef CONFIG_TCC_BCHECK
1208 ST_FUNC void gen_bounded_ptr_add(void);
1209 ST_FUNC void gen_bounded_ptr_deref(void);
1210 #endif
1211
1212 /* ------------ x86_64-gen.c ------------ */
1213 #ifdef TCC_TARGET_X86_64
1214 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1215 #endif
1216
1217 /* ------------ arm-gen.c ------------ */
1218 #ifdef TCC_TARGET_ARM
1219 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1220 ST_FUNC void gen_cvt_itof1(int t);
1221 #endif
1222
1223 /* ------------ c67-gen.c ------------ */
1224 #ifdef TCC_TARGET_C67
1225 #endif
1226
1227 /* ------------ tcccoff.c ------------ */
1228
1229 #ifdef TCC_TARGET_COFF
1230 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1231 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1232 #endif
1233
1234 /* ------------ tccasm.c ------------ */
1235 ST_FUNC void asm_instr(void);
1236 ST_FUNC void asm_global_instr(void);
1237
1238 #ifdef CONFIG_TCC_ASM
1239 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1240 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1241 ST_FUNC int asm_int_expr(TCCState *s1);
1242 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1243 /* ------------ i386-asm.c ------------ */
1244 ST_FUNC void gen_expr32(ExprValue *pe);
1245 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1246 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1247 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1248 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1249 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1250 #endif
1251 /* ------------ tccpe.c -------------- */
1252 #ifdef TCC_TARGET_PE
1253 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1254 ST_FUNC int pe_add_dll(struct TCCState *s, const char *libraryname);
1255 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1256 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, const void *value);
1257 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1258 /* tiny_impdef.c */
1259 ST_FUNC char *get_export_names(FILE *fp);
1260 #ifdef TCC_TARGET_X86_64
1261 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1262 #endif
1263 #endif
1264
1265 /* ------------ tccrun.c ----------------- */
1266 #ifdef CONFIG_TCC_STATIC
1267 #define RTLD_LAZY       0x001
1268 #define RTLD_NOW        0x002
1269 #define RTLD_GLOBAL     0x100
1270 #define RTLD_DEFAULT    NULL
1271 /* dummy function for profiling */
1272 ST_FUNC void *dlopen(const char *filename, int flag);
1273 ST_FUNC void dlclose(void *p);
1274 //ST_FUNC const char *dlerror(void);
1275 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1276 #elif !defined TCC_TARGET_PE || !defined _WIN32
1277 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1278 #endif
1279 /********************************************************/
1280 /* include the target specific definitions */
1281
1282 #define TARGET_DEFS_ONLY
1283 #ifdef TCC_TARGET_I386
1284 #include "i386-gen.c"
1285 #endif
1286 #ifdef TCC_TARGET_X86_64
1287 #include "x86_64-gen.c"
1288 #endif
1289 #ifdef TCC_TARGET_ARM
1290 #include "arm-gen.c"
1291 #endif
1292 #ifdef TCC_TARGET_C67
1293 #include "coff.h"
1294 #include "c67-gen.c"
1295 #endif
1296 #undef TARGET_DEFS_ONLY
1297
1298 ST_DATA const int reg_classes[NB_REGS];
1299
1300 /********************************************************/
1301 #undef ST_DATA
1302 #ifdef ONE_SOURCE
1303 #define ST_DATA static
1304 #else
1305 #define ST_DATA
1306 #endif
1307 /********************************************************/
1308 #endif /* _TCC_H */