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 #include "tccboot.h"
  29 #define CONFIG_TCC_STATIC
  30 #else
  31
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <stdarg.h>
  35 #include <string.h>
  36 #include <errno.h>
  37 #include <math.h>
  38 #include <signal.h>
  39 #include <fcntl.h>
  40 #include <setjmp.h>
  41 #include <time.h>
  42
  43 #ifndef _WIN32
  44 # include <unistd.h>
  45 # include <sys/time.h>
  46 # include <sys/ucontext.h>
  47 # include <sys/mman.h>
  48 # ifndef CONFIG_TCC_STATIC
  49 #  include <dlfcn.h>
  50 # endif
  51 #else
  52 # include <windows.h>
  53 # include <sys/timeb.h>
  54 # include <io.h> /* open, close etc. */
  55 # include <direct.h> /* getcwd */
  56 # ifdef __GNUC__
  57 #  include <stdint.h>
  58 # else
  59    typedef UINT_PTR uintptr_t;
  60 # endif
  61 # define inline __inline
  62 # define inp next_inp
  63 # ifdef LIBTCC_AS_DLL
  64 #  define LIBTCCAPI __declspec(dllexport)
  65 #  define PUB_FUNC LIBTCCAPI
  66 # endif
  67 #endif
  68
  69 #endif /* !CONFIG_TCCBOOT */
  70
  71 #ifndef O_BINARY
  72 # define O_BINARY 0
  73 #endif
  74
  75 #include "elf.h"
  76 #ifdef TCC_TARGET_X86_64
  77 # define ELFCLASSW ELFCLASS64
  78 # define ElfW(type) Elf##64##_##type
  79 # define ELFW(type) ELF##64##_##type
  80 # define ElfW_Rel ElfW(Rela)
  81 # define SHT_RELX SHT_RELA
  82 # define REL_SECTION_FMT ".rela%s"
  83 /* XXX: DLL with PLT would only work with x86-64 for now */
  84 # define TCC_OUTPUT_DLL_WITH_PLT
  85 #else
  86 # define ELFCLASSW ELFCLASS32
  87 # define ElfW(type) Elf##32##_##type
  88 # define ELFW(type) ELF##32##_##type
  89 # define ElfW_Rel ElfW(Rel)
  90 # define SHT_RELX SHT_REL
  91 # define REL_SECTION_FMT ".rel%s"
  92 #endif
  93
  94 /* target address type */
  95 #define addr_t ElfW(Addr)
  96
  97 #include "stab.h"
  98 #include "libtcc.h"
  99
 100 /* parser debug */
 101 /* #define PARSE_DEBUG */
 102 /* preprocessor debug */
 103 /* #define PP_DEBUG */
 104 /* include file debug */
 105 /* #define INC_DEBUG */
 106 /* memory leak debug */
 107 /* #define MEM_DEBUG */
 108 /* assembler debug */
 109 /* #define ASM_DEBUG */
 110
 111 /* target selection */
 112 /* #define TCC_TARGET_I386   *//* i386 code generator */
 113 /* #define TCC_TARGET_ARM    *//* ARMv4 code generator */
 114 /* #define TCC_TARGET_C67    *//* TMS320C67xx code generator */
 115 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
 116
 117 /* default target is I386 */
 118 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 119     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 120 #define TCC_TARGET_I386
 121 #endif
 122
 123 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 124     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 125 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 126 #endif
 127
 128 /* define it to include assembler support */
 129 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 130 #define CONFIG_TCC_ASM
 131 #endif
 132
 133 /* object format selection */
 134 #if defined(TCC_TARGET_C67)
 135 #define TCC_TARGET_COFF
 136 #endif
 137
 138 /* only native compiler supports -run */
 139 #if defined _WIN32 == defined TCC_TARGET_PE
 140 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 141 #  define TCC_IS_NATIVE
 142 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 143 #  define TCC_IS_NATIVE
 144 # elif defined __arm__ && defined TCC_TARGET_ARM
 145 #  define TCC_IS_NATIVE
 146 # endif
 147 #endif
 148
 149 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 150 # define CONFIG_TCC_BACKTRACE
 151 #endif
 152
 153 /* ------------ path configuration ------------ */
 154
 155 #ifndef CONFIG_SYSROOT
 156 # define CONFIG_SYSROOT ""
 157 #endif
 158 #ifndef CONFIG_TCCDIR
 159 # define CONFIG_TCCDIR "."
 160 #endif
 161 #ifndef CONFIG_LDDIR
 162 # define CONFIG_LDDIR "lib"
 163 #endif
 164
 165 /* path to find crt1.o, crti.o and crtn.o */
 166 #ifndef CONFIG_TCC_CRTPREFIX
 167 # define CONFIG_TCC_CRTPREFIX CONFIG_SYSROOT "/usr/" CONFIG_LDDIR
 168 #endif
 169
 170 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 171
 172 /* system include paths */
 173 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 174 # ifdef TCC_TARGET_PE
 175 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 176 # elif defined CONFIG_MULTIARCHDIR
 177 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 178         CONFIG_SYSROOT "/usr/local/include" \
 179     ":" CONFIG_SYSROOT "/usr/local/include/" CONFIG_MULTIARCHDIR \
 180     ":" CONFIG_SYSROOT "/usr/include" \
 181     ":" CONFIG_SYSROOT "/usr/include/" CONFIG_MULTIARCHDIR \
 182     ":" "{B}/include"
 183 # else
 184 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 185         CONFIG_SYSROOT "/usr/local/include" \
 186     ":" CONFIG_SYSROOT "/usr/include" \
 187     ":" "{B}/include"
 188 # endif
 189 #endif
 190
 191 /* library search paths */
 192 #ifndef CONFIG_TCC_LIBPATHS
 193 # ifdef TCC_TARGET_PE
 194 #  define CONFIG_TCC_LIBPATHS "{B}/lib"
 195 # else
 196 #  define CONFIG_TCC_LIBPATHS \
 197         CONFIG_SYSROOT "/usr/" CONFIG_LDDIR \
 198     ":" CONFIG_SYSROOT "/" CONFIG_LDDIR \
 199     ":" CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR
 200 # endif
 201 #endif
 202
 203 /* name of ELF interpreter */
 204 #ifndef CONFIG_TCC_ELFINTERP
 205 # if defined __FreeBSD__
 206 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 207 # elif defined __FreeBSD_kernel__
 208 #  if defined(TCC_TARGET_X86_64)
 209 #   define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
 210 #  else
 211 #   define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
 212 #  endif
 213 # elif defined __GNU__
 214 #  define CONFIG_TCC_ELFINTERP "/lib/ld.so"
 215 # elif defined TCC_ARM_HARDFLOAT
 216 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux-armhf.so.3"
 217 # elif defined TCC_ARM_EABI
 218 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.3"
 219 # elif defined(TCC_TARGET_X86_64)
 220 #  define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
 221 # elif defined(TCC_UCLIBC)
 222 #  define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0"
 223 # elif defined(TCC_TARGET_PE)
 224 #  define CONFIG_TCC_ELFINTERP "-"
 225 # else
 226 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
 227 # endif
 228 #endif
 229
 230 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 231 #define TCC_LIBGCC CONFIG_SYSROOT "/" CONFIG_LDDIR "/libgcc_s.so.1"
 232
 233 /* -------------------------------------------- */
 234 /* include the target specific definitions */
 235
 236 #define TARGET_DEFS_ONLY
 237 #ifdef TCC_TARGET_I386
 238 # include "i386-gen.c"
 239 #endif
 240 #ifdef TCC_TARGET_X86_64
 241 # include "x86_64-gen.c"
 242 #endif
 243 #ifdef TCC_TARGET_ARM
 244 # include "arm-gen.c"
 245 #endif
 246 #ifdef TCC_TARGET_C67
 247 # include "coff.h"
 248 # include "c67-gen.c"
 249 #endif
 250 #undef TARGET_DEFS_ONLY
 251
 252 /* -------------------------------------------- */
 253
 254 #define INCLUDE_STACK_SIZE  32
 255 #define IFDEF_STACK_SIZE    64
 256 #define VSTACK_SIZE         256
 257 #define STRING_MAX_SIZE     1024
 258 #define PACK_STACK_SIZE     8
 259
 260 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 261 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 262 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 263
 264 /* token symbol management */
 265 typedef struct TokenSym {
 266     struct TokenSym *hash_next;
 267     struct Sym *sym_define; /* direct pointer to define */
 268     struct Sym *sym_label; /* direct pointer to label */
 269     struct Sym *sym_struct; /* direct pointer to structure */
 270     struct Sym *sym_identifier; /* direct pointer to identifier */
 271     int tok; /* token number */
 272     int len;
 273     char str[1];
 274 } TokenSym;
 275
 276 #ifdef TCC_TARGET_PE
 277 typedef unsigned short nwchar_t;
 278 #else
 279 typedef int nwchar_t;
 280 #endif
 281
 282 typedef struct CString {
 283     int size; /* size in bytes */
 284     void *data; /* either 'char *' or 'nwchar_t *' */
 285     int size_allocated;
 286     void *data_allocated; /* if non NULL, data has been malloced */
 287 } CString;
 288
 289 /* type definition */
 290 typedef struct CType {
 291     int t;
 292     struct Sym *ref;
 293 } CType;
 294
 295 /* constant value */
 296 typedef union CValue {
 297     long double ld;
 298     double d;
 299     float f;
 300     int i;
 301     unsigned int ui;
 302     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 303     long long ll;
 304     unsigned long long ull;
 305     struct CString *cstr;
 306     void *ptr;
 307     int tab[LDOUBLE_SIZE/4];
 308 } CValue;
 309
 310 /* value on stack */
 311 typedef struct SValue {
 312     CType type;      /* type */
 313     unsigned short r;      /* register + flags */
 314     unsigned short r2;     /* second register, used for 'long long'
 315                               type. If not used, set to VT_CONST */
 316     CValue c;              /* constant, if VT_CONST */
 317     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 318 } SValue;
 319
 320 /* symbol management */
 321 typedef struct Sym {
 322     int v;    /* symbol token */
 323     char *asm_label;    /* associated asm label */
 324     long r;    /* associated register */
 325     union {
 326         long c;    /* associated number */
 327         int *d;   /* define token stream */
 328     };
 329     CType type;    /* associated type */
 330     union {
 331         struct Sym *next; /* next related symbol */
 332         long jnext; /* next jump label */
 333     };
 334     struct Sym *prev; /* prev symbol in stack */
 335     struct Sym *prev_tok; /* previous symbol for this token */
 336 } Sym;
 337
 338 /* section definition */
 339 /* XXX: use directly ELF structure for parameters ? */
 340 /* special flag to indicate that the section should not be linked to
 341    the other ones */
 342 #define SHF_PRIVATE 0x80000000
 343
 344 /* special flag, too */
 345 #define SECTION_ABS ((void *)1)
 346
 347 typedef struct Section {
 348     unsigned long data_offset; /* current data offset */
 349     unsigned char *data;       /* section data */
 350     unsigned long data_allocated; /* used for realloc() handling */
 351     int sh_name;             /* elf section name (only used during output) */
 352     int sh_num;              /* elf section number */
 353     int sh_type;             /* elf section type */
 354     int sh_flags;            /* elf section flags */
 355     int sh_info;             /* elf section info */
 356     int sh_addralign;        /* elf section alignment */
 357     int sh_entsize;          /* elf entry size */
 358     unsigned long sh_size;   /* section size (only used during output) */
 359     addr_t sh_addr;          /* address at which the section is relocated */
 360     unsigned long sh_offset; /* file offset */
 361     int nb_hashed_syms;      /* used to resize the hash table */
 362     struct Section *link;    /* link to another section */
 363     struct Section *reloc;   /* corresponding section for relocation, if any */
 364     struct Section *hash;     /* hash table for symbols */
 365     struct Section *next;
 366     char name[1];           /* section name */
 367 } Section;
 368
 369 typedef struct DLLReference {
 370     int level;
 371     void *handle;
 372     char name[1];
 373 } DLLReference;
 374
 375 /* GNUC attribute definition */
 376 typedef struct AttributeDef {
 377     unsigned
 378       func_call     : 3, /* calling convention (0..5), see below */
 379       aligned       : 5, /* alignement (0..16) */
 380       packed        : 1,
 381       func_export   : 1,
 382       func_import   : 1,
 383       func_args     : 5,
 384       mode          : 4,
 385       weak          : 1,
 386       fill          : 11;
 387     struct Section *section;
 388     int alias_target;    /* token */
 389 } AttributeDef;
 390
 391 /* gr: wrappers for casting sym->r for other purposes */
 392 #define FUNC_CALL(r) (((AttributeDef*)&(r))->func_call)
 393 #define FUNC_EXPORT(r) (((AttributeDef*)&(r))->func_export)
 394 #define FUNC_IMPORT(r) (((AttributeDef*)&(r))->func_import)
 395 #define FUNC_ARGS(r) (((AttributeDef*)&(r))->func_args)
 396 #define FUNC_ALIGN(r) (((AttributeDef*)&(r))->aligned)
 397 #define FUNC_PACKED(r) (((AttributeDef*)&(r))->packed)
 398 #define ATTR_MODE(r)  (((AttributeDef*)&(r))->mode)
 399 #define INT_ATTR(ad) (*(int*)(ad))
 400
 401 /* -------------------------------------------------- */
 402
 403 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 404 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 405 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 406
 407 /* stored in 'Sym.c' field */
 408 #define FUNC_NEW       1 /* ansi function prototype */
 409 #define FUNC_OLD       2 /* old function prototype */
 410 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 411
 412 /* stored in 'Sym.r' field */
 413 #define FUNC_CDECL     0 /* standard c call */
 414 #define FUNC_STDCALL   1 /* pascal c call */
 415 #define FUNC_FASTCALL1 2 /* first param in %eax */
 416 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 417 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 418 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 419
 420 /* field 'Sym.t' for macros */
 421 #define MACRO_OBJ      0 /* object like macro */
 422 #define MACRO_FUNC     1 /* function like macro */
 423
 424 /* field 'Sym.r' for C labels */
 425 #define LABEL_DEFINED  0 /* label is defined */
 426 #define LABEL_FORWARD  1 /* label is forward defined */
 427 #define LABEL_DECLARED 2 /* label is declared but never used */
 428
 429 /* type_decl() types */
 430 #define TYPE_ABSTRACT  1 /* type without variable */
 431 #define TYPE_DIRECT    2 /* type with variable */
 432
 433 #define IO_BUF_SIZE 8192
 434
 435 typedef struct BufferedFile {
 436     uint8_t *buf_ptr;
 437     uint8_t *buf_end;
 438     int fd;
 439     struct BufferedFile *prev;
 440     int line_num;    /* current line number - here to simplify code */
 441     int ifndef_macro;  /* #ifndef macro / #endif search */
 442     int ifndef_macro_saved; /* saved ifndef_macro */
 443     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 444     char filename[1024];    /* filename */
 445     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 446 } BufferedFile;
 447
 448 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 449 #define CH_EOF   (-1)   /* end of file */
 450
 451 /* parsing state (used to save parser state to reparse part of the
 452    source several times) */
 453 typedef struct ParseState {
 454     const int *macro_ptr;
 455     int line_num;
 456     int tok;
 457     CValue tokc;
 458 } ParseState;
 459
 460 /* used to record tokens */
 461 typedef struct TokenString {
 462     int *str;
 463     int len;
 464     int allocated_len;
 465     int last_line_num;
 466 } TokenString;
 467
 468 /* inline functions */
 469 typedef struct InlineFunc {
 470     int *token_str;
 471     Sym *sym;
 472     char filename[1];
 473 } InlineFunc;
 474
 475 /* include file cache, used to find files faster and also to eliminate
 476    inclusion if the include file is protected by #ifndef ... #endif */
 477 typedef struct CachedInclude {
 478     int ifndef_macro;
 479     int hash_next; /* -1 if none */
 480     char filename[1]; /* path specified in #include */
 481 } CachedInclude;
 482
 483 #define CACHED_INCLUDES_HASH_SIZE 512
 484
 485 #ifdef CONFIG_TCC_ASM
 486 typedef struct ExprValue {
 487     uint32_t v;
 488     Sym *sym;
 489 } ExprValue;
 490
 491 #define MAX_ASM_OPERANDS 30
 492 typedef struct ASMOperand {
 493     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 494     char *constraint;
 495     char asm_str[16]; /* computed asm string for operand */
 496     SValue *vt; /* C value of the expression */
 497     int ref_index; /* if >= 0, gives reference to a output constraint */
 498     int input_index; /* if >= 0, gives reference to an input constraint */
 499     int priority; /* priority, used to assign registers */
 500     int reg; /* if >= 0, register number used for this operand */
 501     int is_llong; /* true if double register value */
 502     int is_memory; /* true if memory operand */
 503     int is_rw;     /* for '+' modifier */
 504 } ASMOperand;
 505 #endif
 506
 507 struct sym_attr {
 508     unsigned long got_offset;
 509 #ifdef TCC_TARGET_ARM
 510     unsigned char plt_thumb_stub:1;
 511 #endif
 512 };
 513
 514 struct TCCState {
 515
 516     int verbose; /* if true, display some information during compilation */
 517     int nostdinc; /* if true, no standard headers are added */
 518     int nostdlib; /* if true, no standard libraries are added */
 519     int nocommon; /* if true, do not use common symbols for .bss data */
 520     int static_link; /* if true, static linking is performed */
 521     int rdynamic; /* if true, all symbols are exported */
 522     int symbolic; /* if true, resolve symbols in the current module first */
 523     int alacarte_link; /* if true, only link in referenced objects from archive */
 524
 525     char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
 526     char *soname; /* as specified on the command line (-soname) */
 527     char *rpath; /* as specified on the command line (-Wl,-rpath=) */
 528
 529     /* output type, see TCC_OUTPUT_XXX */
 530     int output_type;
 531     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 532     int output_format;
 533
 534     /* C language options */
 535     int char_is_unsigned;
 536     int leading_underscore;
 537
 538     /* warning switches */
 539     int warn_write_strings;
 540     int warn_unsupported;
 541     int warn_error;
 542     int warn_none;
 543     int warn_implicit_function_declaration;
 544
 545     /* compile with debug symbol (and use them if error during execution) */
 546     int do_debug;
 547 #ifdef CONFIG_TCC_BCHECK
 548     /* compile with built-in memory and bounds checker */
 549     int do_bounds_check;
 550 #endif
 551
 552     addr_t text_addr; /* address of text section */
 553     int has_text_addr;
 554
 555     unsigned long section_align; /* section alignment */
 556
 557     char *init_symbol; /* symbols to call at load-time (not used currently) */
 558     char *fini_symbol; /* symbols to call at unload-time (not used currently) */
 559
 560 #ifdef TCC_TARGET_I386
 561     int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
 562 #endif
 563
 564     /* array of all loaded dlls (including those referenced by loaded dlls) */
 565     DLLReference **loaded_dlls;
 566     int nb_loaded_dlls;
 567
 568     /* include paths */
 569     char **include_paths;
 570     int nb_include_paths;
 571
 572     char **sysinclude_paths;
 573     int nb_sysinclude_paths;
 574
 575     /* library paths */
 576     char **library_paths;
 577     int nb_library_paths;
 578
 579     /* crt?.o object path */
 580     char **crt_paths;
 581     int nb_crt_paths;
 582
 583     /* error handling */
 584     void *error_opaque;
 585     void (*error_func)(void *opaque, const char *msg);
 586     int error_set_jmp_enabled;
 587     jmp_buf error_jmp_buf;
 588     int nb_errors;
 589
 590     /* output file for preprocessing (-E) */
 591     FILE *ppfp;
 592
 593     /* for -MD/-MF: collected dependencies for this compilation */
 594     char **target_deps;
 595     int nb_target_deps;
 596
 597     /* compilation */
 598     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 599     BufferedFile **include_stack_ptr;
 600
 601     int ifdef_stack[IFDEF_STACK_SIZE];
 602     int *ifdef_stack_ptr;
 603
 604     /* included files enclosed with #ifndef MACRO */
 605     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 606     CachedInclude **cached_includes;
 607     int nb_cached_includes;
 608
 609     /* #pragma pack stack */
 610     int pack_stack[PACK_STACK_SIZE];
 611     int *pack_stack_ptr;
 612
 613     /* inline functions are stored as token lists and compiled last
 614        only if referenced */
 615     struct InlineFunc **inline_fns;
 616     int nb_inline_fns;
 617
 618     /* sections */
 619     Section **sections;
 620     int nb_sections; /* number of sections, including first dummy section */
 621
 622     Section **priv_sections;
 623     int nb_priv_sections; /* number of private sections */
 624
 625     /* got & plt handling */
 626     Section *got;
 627     Section *plt;
 628     struct sym_attr *sym_attrs;
 629     int nb_sym_attrs;
 630     /* give the correspondance from symtab indexes to dynsym indexes */
 631     int *symtab_to_dynsym;
 632
 633     /* temporary dynamic symbol sections (for dll loading) */
 634     Section *dynsymtab_section;
 635     /* exported dynamic symbol section */
 636     Section *dynsym;
 637     /* copy of the gobal symtab_section variable */
 638     Section *symtab;
 639     /* tiny assembler state */
 640     Sym *asm_labels;
 641
 642 #ifdef TCC_TARGET_PE
 643     /* PE info */
 644     int pe_subsystem;
 645     unsigned pe_file_align;
 646     unsigned pe_stack_size;
 647 # ifdef TCC_TARGET_X86_64
 648     Section *uw_pdata;
 649     int uw_sym;
 650     unsigned uw_offs;
 651 # endif
 652 #endif
 653
 654 #ifdef TCC_IS_NATIVE
 655     /* for tcc_relocate */
 656     void *runtime_mem;
 657 # ifdef HAVE_SELINUX
 658     void *write_mem;
 659     unsigned long mem_size;
 660 # endif
 661 # if !defined TCC_TARGET_PE && (defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM)
 662     /* write PLT and GOT here */
 663     char *runtime_plt_and_got;
 664     unsigned runtime_plt_and_got_offset;
 665 #  define TCC_HAS_RUNTIME_PLTGOT
 666 # endif
 667 #endif
 668
 669     /* used by main and tcc_parse_args only */
 670     char **files; /* files seen on command line */
 671     int nb_files; /* number thereof */
 672     int nb_libraries; /* number of libs thereof */
 673     char *outfile; /* output filename */
 674     char *option_m; /* only -m32/-m64 handled */
 675     int print_search_dirs; /* option */
 676     int option_r; /* option -r */
 677     int do_bench; /* option -bench */
 678     int gen_deps; /* option -MD  */
 679     char *deps_outfile; /* option -MF */
 680 };
 681
 682 /* The current value can be: */
 683 #define VT_VALMASK   0x003f  /* mask for value location, register or: */
 684 #define VT_CONST     0x0030  /* constant in vc (must be first non register value) */
 685 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 686 #define VT_LOCAL     0x0032  /* offset on stack */
 687 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 688 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 689 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 690 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 691 #define VT_LVAL      0x0100  /* var is an lvalue */
 692 #define VT_SYM       0x0200  /* a symbol value is added */
 693 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 694                                 char/short stored in integer registers) */
 695 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 696                                 dereferencing value */
 697 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 698                                 bounding function call point is in vc */
 699 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 700 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 701 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 702 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 703
 704 /* types */
 705 #define VT_BTYPE       0x000f  /* mask for basic type */
 706 #define VT_INT              0  /* integer type */
 707 #define VT_BYTE             1  /* signed byte type */
 708 #define VT_SHORT            2  /* short type */
 709 #define VT_VOID             3  /* void type */
 710 #define VT_PTR              4  /* pointer */
 711 #define VT_ENUM             5  /* enum definition */
 712 #define VT_FUNC             6  /* function type */
 713 #define VT_STRUCT           7  /* struct/union definition */
 714 #define VT_FLOAT            8  /* IEEE float */
 715 #define VT_DOUBLE           9  /* IEEE double */
 716 #define VT_LDOUBLE         10  /* IEEE long double */
 717 #define VT_BOOL            11  /* ISOC99 boolean type */
 718 #define VT_LLONG           12  /* 64 bit integer */
 719 #define VT_LONG            13  /* long integer (NEVER USED as type, only
 720                                   during parsing) */
 721 #define VT_UNSIGNED    0x0010  /* unsigned type */
 722 #define VT_ARRAY       0x0020  /* array type (also has VT_PTR) */
 723 #define VT_BITFIELD    0x0040  /* bitfield modifier */
 724 #define VT_CONSTANT    0x0800  /* const modifier */
 725 #define VT_VOLATILE    0x1000  /* volatile modifier */
 726 #define VT_SIGNED      0x2000  /* signed type */
 727 #define VT_VLA     0x00020000  /* VLA type (also has VT_PTR and VT_ARRAY) */
 728
 729 /* storage */
 730 #define VT_EXTERN  0x00000080  /* extern definition */
 731 #define VT_STATIC  0x00000100  /* static variable */
 732 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 733 #define VT_INLINE  0x00000400  /* inline definition */
 734 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 735 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 736 #define VT_WEAK    0x00010000  /* weak symbol */
 737
 738 #define VT_STRUCT_SHIFT 18     /* shift for bitfield shift values (max: 32 - 2*6) */
 739
 740 /* type mask (except storage) */
 741 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 742 #define VT_TYPE (~(VT_STORAGE))
 743
 744 /* token values */
 745
 746 /* warning: the following compare tokens depend on i386 asm code */
 747 #define TOK_ULT 0x92
 748 #define TOK_UGE 0x93
 749 #define TOK_EQ  0x94
 750 #define TOK_NE  0x95
 751 #define TOK_ULE 0x96
 752 #define TOK_UGT 0x97
 753 #define TOK_Nset 0x98
 754 #define TOK_Nclear 0x99
 755 #define TOK_LT  0x9c
 756 #define TOK_GE  0x9d
 757 #define TOK_LE  0x9e
 758 #define TOK_GT  0x9f
 759
 760 #define TOK_LAND  0xa0
 761 #define TOK_LOR   0xa1
 762
 763 #define TOK_DEC   0xa2
 764 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 765 #define TOK_INC   0xa4
 766 #define TOK_UDIV  0xb0 /* unsigned division */
 767 #define TOK_UMOD  0xb1 /* unsigned modulo */
 768 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 769 #define TOK_CINT   0xb3 /* number in tokc */
 770 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 771 #define TOK_STR   0xb5 /* pointer to string in tokc */
 772 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 773 #define TOK_LCHAR    0xb7
 774 #define TOK_LSTR     0xb8
 775 #define TOK_CFLOAT   0xb9 /* float constant */
 776 #define TOK_LINENUM  0xba /* line number info */
 777 #define TOK_CDOUBLE  0xc0 /* double constant */
 778 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 779 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 780 #define TOK_ADDC1    0xc3 /* add with carry generation */
 781 #define TOK_ADDC2    0xc4 /* add with carry use */
 782 #define TOK_SUBC1    0xc5 /* add with carry generation */
 783 #define TOK_SUBC2    0xc6 /* add with carry use */
 784 #define TOK_CUINT    0xc8 /* unsigned int constant */
 785 #define TOK_CLLONG   0xc9 /* long long constant */
 786 #define TOK_CULLONG  0xca /* unsigned long long constant */
 787 #define TOK_ARROW    0xcb
 788 #define TOK_DOTS     0xcc /* three dots */
 789 #define TOK_SHR      0xcd /* unsigned shift right */
 790 #define TOK_PPNUM    0xce /* preprocessor number */
 791 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 792
 793 #define TOK_SHL   0x01 /* shift left */
 794 #define TOK_SAR   0x02 /* signed shift right */
 795
 796 /* assignement operators : normal operator or 0x80 */
 797 #define TOK_A_MOD 0xa5
 798 #define TOK_A_AND 0xa6
 799 #define TOK_A_MUL 0xaa
 800 #define TOK_A_ADD 0xab
 801 #define TOK_A_SUB 0xad
 802 #define TOK_A_DIV 0xaf
 803 #define TOK_A_XOR 0xde
 804 #define TOK_A_OR  0xfc
 805 #define TOK_A_SHL 0x81
 806 #define TOK_A_SAR 0x82
 807
 808 #ifndef offsetof
 809 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 810 #endif
 811
 812 #ifndef countof
 813 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 814 #endif
 815
 816 #define TOK_EOF       (-1)  /* end of file */
 817 #define TOK_LINEFEED  10    /* line feed */
 818
 819 /* all identificators and strings have token above that */
 820 #define TOK_IDENT 256
 821
 822 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 823 #define TOK_ASM_int TOK_INT
 824 #define TOK_ASM_weak TOK_WEAK1
 825
 826 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 827 /* only used for i386 asm opcodes definitions */
 828 #define DEF_BWL(x) \
 829  DEF(TOK_ASM_ ## x ## b, #x "b") \
 830  DEF(TOK_ASM_ ## x ## w, #x "w") \
 831  DEF(TOK_ASM_ ## x ## l, #x "l") \
 832  DEF(TOK_ASM_ ## x, #x)
 833 #define DEF_WL(x) \
 834  DEF(TOK_ASM_ ## x ## w, #x "w") \
 835  DEF(TOK_ASM_ ## x ## l, #x "l") \
 836  DEF(TOK_ASM_ ## x, #x)
 837 #ifdef TCC_TARGET_X86_64
 838 # define DEF_BWLQ(x) \
 839  DEF(TOK_ASM_ ## x ## b, #x "b") \
 840  DEF(TOK_ASM_ ## x ## w, #x "w") \
 841  DEF(TOK_ASM_ ## x ## l, #x "l") \
 842  DEF(TOK_ASM_ ## x ## q, #x "q") \
 843  DEF(TOK_ASM_ ## x, #x)
 844 # define DEF_WLQ(x) \
 845  DEF(TOK_ASM_ ## x ## w, #x "w") \
 846  DEF(TOK_ASM_ ## x ## l, #x "l") \
 847  DEF(TOK_ASM_ ## x ## q, #x "q") \
 848  DEF(TOK_ASM_ ## x, #x)
 849 # define DEF_BWLX DEF_BWLQ
 850 # define DEF_WLX DEF_WLQ
 851 /* number of sizes + 1 */
 852 # define NBWLX 5
 853 #else
 854 # define DEF_BWLX DEF_BWL
 855 # define DEF_WLX DEF_WL
 856 /* number of sizes + 1 */
 857 # define NBWLX 4
 858 #endif
 859
 860 #define DEF_FP1(x) \
 861  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 862  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 863  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 864  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 865
 866 #define DEF_FP(x) \
 867  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 868  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 869  DEF_FP1(x)
 870
 871 #define DEF_ASMTEST(x) \
 872  DEF_ASM(x ## o) \
 873  DEF_ASM(x ## no) \
 874  DEF_ASM(x ## b) \
 875  DEF_ASM(x ## c) \
 876  DEF_ASM(x ## nae) \
 877  DEF_ASM(x ## nb) \
 878  DEF_ASM(x ## nc) \
 879  DEF_ASM(x ## ae) \
 880  DEF_ASM(x ## e) \
 881  DEF_ASM(x ## z) \
 882  DEF_ASM(x ## ne) \
 883  DEF_ASM(x ## nz) \
 884  DEF_ASM(x ## be) \
 885  DEF_ASM(x ## na) \
 886  DEF_ASM(x ## nbe) \
 887  DEF_ASM(x ## a) \
 888  DEF_ASM(x ## s) \
 889  DEF_ASM(x ## ns) \
 890  DEF_ASM(x ## p) \
 891  DEF_ASM(x ## pe) \
 892  DEF_ASM(x ## np) \
 893  DEF_ASM(x ## po) \
 894  DEF_ASM(x ## l) \
 895  DEF_ASM(x ## nge) \
 896  DEF_ASM(x ## nl) \
 897  DEF_ASM(x ## ge) \
 898  DEF_ASM(x ## le) \
 899  DEF_ASM(x ## ng) \
 900  DEF_ASM(x ## nle) \
 901  DEF_ASM(x ## g)
 902
 903 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
 904
 905 enum tcc_token {
 906     TOK_LAST = TOK_IDENT - 1,
 907 #define DEF(id, str) id,
 908 #include "tcctok.h"
 909 #undef DEF
 910 };
 911
 912 #define TOK_UIDENT TOK_DEFINE
 913
 914 #ifdef _WIN32
 915 #define snprintf _snprintf
 916 #define vsnprintf _vsnprintf
 917 #ifndef __GNUC__
 918 # define strtold (long double)strtod
 919 # define strtof (float)strtod
 920 # define strtoll _strtoi64
 921 # define strtoull _strtoui64
 922 #endif
 923 #else
 924 /* XXX: need to define this to use them in non ISOC99 context */
 925 extern float strtof (const char *__nptr, char **__endptr);
 926 extern long double strtold (const char *__nptr, char **__endptr);
 927 #endif
 928
 929 #ifdef _WIN32
 930 #define IS_DIRSEP(c) (c == '/' || c == '\\')
 931 #define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
 932 #define PATHCMP stricmp
 933 #else
 934 #define IS_DIRSEP(c) (c == '/')
 935 #define IS_ABSPATH(p) IS_DIRSEP(p[0])
 936 #define PATHCMP strcmp
 937 #endif
 938
 939 #ifdef TCC_TARGET_PE
 940 #define PATHSEP ';'
 941 #else
 942 #define PATHSEP ':'
 943 #endif
 944
 945 /* space exlcuding newline */
 946 static inline int is_space(int ch)
 947 {
 948     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 949 }
 950
 951 static inline int isid(int c)
 952 {
 953     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 954 }
 955
 956 static inline int isnum(int c)
 957 {
 958     return c >= '0' && c <= '9';
 959 }
 960
 961 static inline int isoct(int c)
 962 {
 963     return c >= '0' && c <= '7';
 964 }
 965
 966 static inline int toup(int c)
 967 {
 968     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 969 }
 970
 971 #ifndef PUB_FUNC
 972 # define PUB_FUNC
 973 #endif
 974
 975 #ifdef ONE_SOURCE
 976 #define ST_INLN static inline
 977 #define ST_FUNC static
 978 #define ST_DATA static
 979 #else
 980 #define ST_INLN
 981 #define ST_FUNC
 982 #define ST_DATA extern
 983 #endif
 984
 985 /* ------------ libtcc.c ------------ */
 986
 987 /* use GNU C extensions */
 988 ST_DATA int gnu_ext;
 989 /* use Tiny C extensions */
 990 ST_DATA int tcc_ext;
 991 /* XXX: get rid of this ASAP */
 992 ST_DATA struct TCCState *tcc_state;
 993
 994 #ifdef MEM_DEBUG
 995 ST_DATA int mem_cur_size;
 996 ST_DATA int mem_max_size;
 997 #endif
 998
 999 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
1000 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
1001 #define AFF_PREPROCESS      0x0004 /* preprocess file */
1002
1003 /* public functions currently used by the tcc main function */
1004 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1005 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1006 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1007 PUB_FUNC char *tcc_basename(const char *name);
1008 PUB_FUNC char *tcc_fileextension (const char *name);
1009 PUB_FUNC void tcc_free(void *ptr);
1010 PUB_FUNC void *tcc_malloc(unsigned long size);
1011 PUB_FUNC void *tcc_mallocz(unsigned long size);
1012 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1013 PUB_FUNC char *tcc_strdup(const char *str);
1014 #define free(p) use_tcc_free(p)
1015 #define malloc(s) use_tcc_malloc(s)
1016 #define realloc(p, s) use_tcc_realloc(p, s)
1017 #undef strdup
1018 #define strdup(s) use_tcc_strdup(s)
1019 PUB_FUNC void tcc_memstats(void);
1020 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1021 PUB_FUNC void tcc_error(const char *fmt, ...);
1022 PUB_FUNC void tcc_warning(const char *fmt, ...);
1023
1024 /* other utilities */
1025 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1026 ST_FUNC void dynarray_reset(void *pp, int *n);
1027 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1028 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1029 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1030 ST_FUNC void cstr_new(CString *cstr);
1031 ST_FUNC void cstr_free(CString *cstr);
1032 ST_FUNC void cstr_reset(CString *cstr);
1033
1034 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1035 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1036 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1037 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1038 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1039
1040 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1041 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1042 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1043
1044 ST_INLN void sym_free(Sym *sym);
1045 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1046 ST_FUNC Sym *sym_find2(Sym *s, int v);
1047 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1048 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1049 ST_INLN Sym *struct_find(int v);
1050 ST_INLN Sym *sym_find(int v);
1051 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1052
1053 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1054 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1055 ST_FUNC void tcc_close(void);
1056
1057 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1058 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1059 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1060
1061 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1062 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1063
1064 PUB_FUNC void tcc_set_environment(TCCState *s);
1065
1066 /* ------------ tccpp.c ------------ */
1067
1068 ST_DATA struct BufferedFile *file;
1069 ST_DATA int ch, tok;
1070 ST_DATA CValue tokc;
1071 ST_DATA const int *macro_ptr;
1072 ST_DATA int parse_flags;
1073 ST_DATA int tok_flags;
1074 ST_DATA CString tokcstr; /* current parsed string, if any */
1075
1076 /* display benchmark infos */
1077 ST_DATA int total_lines;
1078 ST_DATA int total_bytes;
1079 ST_DATA int tok_ident;
1080 ST_DATA TokenSym **table_ident;
1081
1082 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1083 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1084 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1085 #define TOK_FLAG_EOF   0x0008 /* end of file */
1086
1087 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1088 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1089 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1090                                         token. line feed is also
1091                                         returned at eof */
1092 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1093 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1094
1095 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1096 ST_FUNC char *get_tok_str(int v, CValue *cv);
1097 ST_FUNC void save_parse_state(ParseState *s);
1098 ST_FUNC void restore_parse_state(ParseState *s);
1099 ST_INLN void tok_str_new(TokenString *s);
1100 ST_FUNC void tok_str_free(int *str);
1101 ST_FUNC void tok_str_add(TokenString *s, int t);
1102 ST_FUNC void tok_str_add_tok(TokenString *s);
1103 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1104 ST_FUNC void define_undef(Sym *s);
1105 ST_INLN Sym *define_find(int v);
1106 ST_FUNC void free_defines(Sym *b);
1107 ST_FUNC Sym *label_find(int v);
1108 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1109 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1110 ST_FUNC void parse_define(void);
1111 ST_FUNC void preprocess(int is_bof);
1112 ST_FUNC void next_nomacro(void);
1113 ST_FUNC void next(void);
1114 ST_INLN void unget_tok(int last_tok);
1115 ST_FUNC void preprocess_init(TCCState *s1);
1116 ST_FUNC void preprocess_new(void);
1117 ST_FUNC int tcc_preprocess(TCCState *s1);
1118 ST_FUNC void skip(int c);
1119 ST_FUNC void expect(const char *msg);
1120
1121 /* ------------ tccgen.c ------------ */
1122
1123 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1124 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1125 #ifdef CONFIG_TCC_ASM
1126 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1127 #endif
1128 #ifdef CONFIG_TCC_BCHECK
1129 /* bound check related sections */
1130 ST_DATA Section *bounds_section; /* contains global data bound description */
1131 ST_DATA Section *lbounds_section; /* contains local data bound description */
1132 #endif
1133 /* symbol sections */
1134 ST_DATA Section *symtab_section, *strtab_section;
1135 /* debug sections */
1136 ST_DATA Section *stab_section, *stabstr_section;
1137
1138 #define SYM_POOL_NB (8192 / sizeof(Sym))
1139 ST_DATA Sym *sym_free_first;
1140 ST_DATA void **sym_pools;
1141 ST_DATA int nb_sym_pools;
1142
1143 ST_DATA Sym *global_stack;
1144 ST_DATA Sym *local_stack;
1145 ST_DATA Sym *local_label_stack;
1146 ST_DATA Sym *global_label_stack;
1147 ST_DATA Sym *define_stack;
1148 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1149 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
1150 #define vstack  (__vstack + 1)
1151 ST_DATA int rsym, anon_sym, ind, loc;
1152
1153 ST_DATA int const_wanted; /* true if constant wanted */
1154 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1155 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1156 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1157 ST_DATA int func_vc;
1158 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1159 ST_DATA char *funcname;
1160
1161 ST_INLN int is_float(int t);
1162 ST_FUNC int ieee_finite(double d);
1163 ST_FUNC void test_lvalue(void);
1164 ST_FUNC void swap(int *p, int *q);
1165 ST_FUNC void vpushi(int v);
1166 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1167 ST_FUNC void vset(CType *type, int r, int v);
1168 ST_FUNC void vswap(void);
1169 ST_FUNC void vpush_global_sym(CType *type, int v);
1170 ST_FUNC void vrote(SValue *e, int n);
1171 ST_FUNC void vrott(int n);
1172 ST_FUNC void vrotb(int n);
1173 #ifdef TCC_TARGET_ARM
1174 ST_FUNC int get_reg_ex(int rc, int rc2);
1175 ST_FUNC void lexpand_nr(void);
1176 #endif
1177 ST_FUNC void vpushv(SValue *v);
1178 ST_FUNC void save_reg(int r);
1179 ST_FUNC int get_reg(int rc);
1180 ST_FUNC void save_regs(int n);
1181 ST_FUNC int gv(int rc);
1182 ST_FUNC void gv2(int rc1, int rc2);
1183 ST_FUNC void vpop(void);
1184 ST_FUNC void gen_op(int op);
1185 ST_FUNC int type_size(CType *type, int *a);
1186 ST_FUNC void mk_pointer(CType *type);
1187 ST_FUNC void vstore(void);
1188 ST_FUNC void inc(int post, int c);
1189 ST_FUNC void parse_asm_str(CString *astr);
1190 ST_FUNC int lvalue_type(int t);
1191 ST_FUNC void indir(void);
1192 ST_FUNC void unary(void);
1193 ST_FUNC void expr_prod(void);
1194 ST_FUNC void expr_sum(void);
1195 ST_FUNC void gexpr(void);
1196 ST_FUNC int expr_const(void);
1197 ST_FUNC void gen_inline_functions(void);
1198 ST_FUNC void decl(int l);
1199 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1200 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1201 #endif
1202
1203 /* ------------ tccelf.c ------------ */
1204
1205 #define TCC_OUTPUT_FORMAT_ELF    0 /* default output format: ELF */
1206 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1207 #define TCC_OUTPUT_FORMAT_COFF   2 /* COFF */
1208
1209 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1210
1211 typedef struct {
1212     unsigned int n_strx;         /* index into string table of name */
1213     unsigned char n_type;         /* type of symbol */
1214     unsigned char n_other;        /* misc info (usually empty) */
1215     unsigned short n_desc;        /* description field */
1216     unsigned int n_value;        /* value of symbol */
1217 } Stab_Sym;
1218
1219 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);
1220
1221 ST_FUNC int put_elf_str(Section *s, const char *sym);
1222 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1223 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1224 ST_FUNC int find_elf_sym(Section *s, const char *name);
1225 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1226
1227 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1228 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1229 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1230 ST_FUNC void put_stabd(int type, int other, int desc);
1231
1232 ST_FUNC void relocate_common_syms(void);
1233 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1234 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1235
1236 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1237 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1238 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1239 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1240
1241 ST_FUNC void build_got_entries(TCCState *s1);
1242 ST_FUNC void tcc_add_runtime(TCCState *s1);
1243
1244 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1245 #ifdef TCC_IS_NATIVE
1246 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1247 #endif
1248
1249 #ifndef TCC_TARGET_PE
1250 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1251 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1252 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1253 ST_FUNC void minp(void);
1254 ST_INLN void inp(void);
1255 ST_FUNC int handle_eob(void);
1256 #endif
1257
1258 /* ------------ xxx-gen.c ------------ */
1259
1260 #ifdef TCC_TARGET_X86_64
1261 ST_DATA const int reg_classes[NB_REGS+7];
1262 #else
1263 ST_DATA const int reg_classes[NB_REGS];
1264 #endif
1265
1266 ST_FUNC void gsym_addr(int t, int a);
1267 ST_FUNC void gsym(int t);
1268 ST_FUNC void load(int r, SValue *sv);
1269 ST_FUNC void store(int r, SValue *v);
1270 ST_FUNC void gfunc_call(int nb_args);
1271 ST_FUNC void gfunc_prolog(CType *func_type);
1272 ST_FUNC void gfunc_epilog(void);
1273 ST_FUNC int gjmp(int t);
1274 ST_FUNC void gjmp_addr(int a);
1275 ST_FUNC int gtst(int inv, int t);
1276 ST_FUNC void gen_opi(int op);
1277 ST_FUNC void gen_opf(int op);
1278 ST_FUNC void gen_cvt_ftoi(int t);
1279 ST_FUNC void gen_cvt_ftof(int t);
1280 ST_FUNC void ggoto(void);
1281 #ifndef TCC_TARGET_C67
1282 ST_FUNC void o(unsigned int c);
1283 #endif
1284 #ifndef TCC_TARGET_ARM
1285 ST_FUNC void gen_cvt_itof(int t);
1286 #endif
1287
1288 /* ------------ i386-gen.c ------------ */
1289 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1290 ST_FUNC void g(int c);
1291 ST_FUNC int oad(int c, int s);
1292 ST_FUNC void gen_le16(int c);
1293 ST_FUNC void gen_le32(int c);
1294 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1295 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1296 #endif
1297
1298 #ifdef CONFIG_TCC_BCHECK
1299 ST_FUNC void gen_bounded_ptr_add(void);
1300 ST_FUNC void gen_bounded_ptr_deref(void);
1301 #endif
1302
1303 /* ------------ x86_64-gen.c ------------ */
1304 #ifdef TCC_TARGET_X86_64
1305 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1306 ST_FUNC void gen_opl(int op);
1307 #endif
1308
1309 /* ------------ arm-gen.c ------------ */
1310 #ifdef TCC_TARGET_ARM
1311 ST_FUNC void arm_init_types(void);
1312 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1313 ST_FUNC void gen_cvt_itof1(int t);
1314 #endif
1315
1316 /* ------------ c67-gen.c ------------ */
1317 #ifdef TCC_TARGET_C67
1318 #endif
1319
1320 /* ------------ tcccoff.c ------------ */
1321
1322 #ifdef TCC_TARGET_COFF
1323 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1324 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1325 #endif
1326
1327 /* ------------ tccasm.c ------------ */
1328 ST_FUNC void asm_instr(void);
1329 ST_FUNC void asm_global_instr(void);
1330 #ifdef CONFIG_TCC_ASM
1331 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1332 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1333 ST_FUNC int asm_int_expr(TCCState *s1);
1334 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1335 /* ------------ i386-asm.c ------------ */
1336 ST_FUNC void gen_expr32(ExprValue *pe);
1337 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1338 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1339 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1340 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1341 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1342 #endif
1343
1344 /* ------------ tccpe.c -------------- */
1345 #ifdef TCC_TARGET_PE
1346 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1347 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1348 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1349 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1350 #ifdef TCC_TARGET_X86_64
1351 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1352 #endif
1353 #endif
1354
1355 /* ------------ tccrun.c ----------------- */
1356 #ifdef TCC_IS_NATIVE
1357 #ifdef CONFIG_TCC_STATIC
1358 #define RTLD_LAZY       0x001
1359 #define RTLD_NOW        0x002
1360 #define RTLD_GLOBAL     0x100
1361 #define RTLD_DEFAULT    NULL
1362 /* dummy function for profiling */
1363 ST_FUNC void *dlopen(const char *filename, int flag);
1364 ST_FUNC void dlclose(void *p);
1365 ST_FUNC const char *dlerror(void);
1366 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1367 #elif !defined _WIN32
1368 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1369 #endif
1370
1371 #ifdef CONFIG_TCC_BACKTRACE
1372 ST_DATA int rt_num_callers;
1373 ST_DATA const char **rt_bound_error_msg;
1374 ST_DATA void *rt_prog_main;
1375 ST_FUNC void tcc_set_num_callers(int n);
1376 #endif
1377 #endif
1378
1379 /********************************************************/
1380 #undef ST_DATA
1381 #ifdef ONE_SOURCE
1382 #define ST_DATA static
1383 #else
1384 #define ST_DATA
1385 #endif
1386 /********************************************************/
1387 #endif /* _TCC_H */