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 #ifdef CONFIG_TCCASSERT
  44 #include <assert.h>
  45 #define TCC_ASSERT(ex) assert(ex)
  46 #else
  47 #define TCC_ASSERT(ex)
  48 #endif
  49
  50 #ifndef _WIN32
  51 # include <unistd.h>
  52 # include <sys/time.h>
  53 # include <sys/ucontext.h>
  54 # include <sys/mman.h>
  55 # ifndef CONFIG_TCC_STATIC
  56 #  include <dlfcn.h>
  57 # endif
  58 #else
  59 # include <windows.h>
  60 # include <sys/timeb.h>
  61 # include <io.h> /* open, close etc. */
  62 # include <direct.h> /* getcwd */
  63 # ifdef __GNUC__
  64 #  include <stdint.h>
  65 # else
  66    typedef UINT_PTR uintptr_t;
  67 # endif
  68 # define inline __inline
  69 # define inp next_inp
  70 # ifdef LIBTCC_AS_DLL
  71 #  define LIBTCCAPI __declspec(dllexport)
  72 #  define PUB_FUNC LIBTCCAPI
  73 # endif
  74 #endif
  75
  76 #endif /* !CONFIG_TCCBOOT */
  77
  78 #ifndef O_BINARY
  79 # define O_BINARY 0
  80 #endif
  81
  82 #include "elf.h"
  83 #ifdef TCC_TARGET_X86_64
  84 # define ELFCLASSW ELFCLASS64
  85 # define ElfW(type) Elf##64##_##type
  86 # define ELFW(type) ELF##64##_##type
  87 # define ElfW_Rel ElfW(Rela)
  88 # define SHT_RELX SHT_RELA
  89 # define REL_SECTION_FMT ".rela%s"
  90 /* XXX: DLL with PLT would only work with x86-64 for now */
  91 # define TCC_OUTPUT_DLL_WITH_PLT
  92 #else
  93 # define ELFCLASSW ELFCLASS32
  94 # define ElfW(type) Elf##32##_##type
  95 # define ELFW(type) ELF##32##_##type
  96 # define ElfW_Rel ElfW(Rel)
  97 # define SHT_RELX SHT_REL
  98 # define REL_SECTION_FMT ".rel%s"
  99 #endif
 100
 101 /* target address type */
 102 #define addr_t ElfW(Addr)
 103
 104 #include "stab.h"
 105 #include "libtcc.h"
 106
 107 /* parser debug */
 108 /* #define PARSE_DEBUG */
 109 /* preprocessor debug */
 110 /* #define PP_DEBUG */
 111 /* include file debug */
 112 /* #define INC_DEBUG */
 113 /* memory leak debug */
 114 /* #define MEM_DEBUG */
 115 /* assembler debug */
 116 /* #define ASM_DEBUG */
 117
 118 /* target selection */
 119 /* #define TCC_TARGET_I386   *//* i386 code generator */
 120 /* #define TCC_TARGET_ARM    *//* ARMv4 code generator */
 121 /* #define TCC_TARGET_C67    *//* TMS320C67xx code generator */
 122 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
 123
 124 /* default target is I386 */
 125 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 126     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 127 #define TCC_TARGET_I386
 128 #endif
 129
 130 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 131     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64) && \
 132     !defined(CONFIG_USE_LIBGCC)
 133 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 134 #endif
 135
 136 /* define it to include assembler support */
 137 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 138 #define CONFIG_TCC_ASM
 139 #endif
 140
 141 /* object format selection */
 142 #if defined(TCC_TARGET_C67)
 143 #define TCC_TARGET_COFF
 144 #endif
 145
 146 /* only native compiler supports -run */
 147 #if defined _WIN32 == defined TCC_TARGET_PE
 148 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 149 #  define TCC_IS_NATIVE
 150 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 151 #  define TCC_IS_NATIVE
 152 # elif defined __arm__ && defined TCC_TARGET_ARM
 153 #  define TCC_IS_NATIVE
 154 # endif
 155 #endif
 156
 157 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 158 # define CONFIG_TCC_BACKTRACE
 159 #endif
 160
 161 /* ------------ path configuration ------------ */
 162
 163 #ifndef CONFIG_SYSROOT
 164 # define CONFIG_SYSROOT ""
 165 #endif
 166 #ifndef CONFIG_TCCDIR
 167 # define CONFIG_TCCDIR "."
 168 #endif
 169 #ifndef CONFIG_LDDIR
 170 # define CONFIG_LDDIR "lib"
 171 #endif
 172 #ifndef CONFIG_MULTIARCHDIR
 173 #define CONFIG_MULTIARCHDIR
 174 #endif
 175
 176 /* path to find crt1.o, crti.o and crtn.o */
 177 #ifndef CONFIG_TCC_CRTPREFIX
 178 # define CONFIG_TCC_CRTPREFIX CONFIG_SYSROOT "/usr/" CONFIG_LDDIR "/" CONFIG_MULTIARCHDIR
 179 #endif
 180
 181 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 182
 183 /* system include paths */
 184 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 185 # ifdef TCC_TARGET_PE
 186 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 187 # else
 188 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 189         CONFIG_SYSROOT "/usr/local/include/" CONFIG_MULTIARCHDIR \
 190     ":" CONFIG_SYSROOT "/usr/local/include" \
 191     ":" CONFIG_SYSROOT "/usr/include/" CONFIG_MULTIARCHDIR \
 192     ":" CONFIG_SYSROOT "/usr/include" \
 193     ":" "{B}/include"
 194 # endif
 195 #endif
 196
 197 /* library search paths */
 198 #ifndef CONFIG_TCC_LIBPATHS
 199 # ifdef TCC_TARGET_PE
 200 #  define CONFIG_TCC_LIBPATHS "{B}/lib;{B}"
 201 # else
 202 #  define CONFIG_TCC_LIBPATHS \
 203         CONFIG_SYSROOT "/usr/" CONFIG_LDDIR "/" CONFIG_MULTIARCHDIR \
 204     ":" CONFIG_SYSROOT "/usr/" CONFIG_LDDIR \
 205     ":" CONFIG_SYSROOT "/" CONFIG_LDDIR "/" CONFIG_MULTIARCHDIR \
 206     ":" CONFIG_SYSROOT "/" CONFIG_LDDIR \
 207     ":" CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR "/" CONFIG_MULTIARCHDIR \
 208     ":" CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR
 209 # endif
 210 #endif
 211
 212 /* name of ELF interpreter */
 213 #ifndef CONFIG_TCC_ELFINTERP
 214 # if defined __FreeBSD__
 215 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 216 # elif defined __FreeBSD_kernel__
 217 #  if defined(TCC_TARGET_X86_64)
 218 #   define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
 219 #  else
 220 #   define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
 221 #  endif
 222 # elif defined __GNU__
 223 #  define CONFIG_TCC_ELFINTERP "/lib/ld.so"
 224 # elif defined TCC_ARM_HARDFLOAT
 225 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux-armhf.so.3"
 226 # elif defined TCC_ARM_EABI
 227 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.3"
 228 # elif defined(TCC_TARGET_X86_64)
 229 #  define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
 230 # elif defined(TCC_UCLIBC)
 231 #  define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0"
 232 # elif defined(TCC_TARGET_PE)
 233 #  define CONFIG_TCC_ELFINTERP "-"
 234 # else
 235 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
 236 # endif
 237 #endif
 238
 239 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 240 #define TCC_LIBGCC CONFIG_SYSROOT "/" CONFIG_LDDIR "/" CONFIG_MULTIARCHDIR "/libgcc_s.so.1"
 241
 242 /* -------------------------------------------- */
 243 /* include the target specific definitions */
 244
 245 #define TARGET_DEFS_ONLY
 246 #ifdef TCC_TARGET_I386
 247 # include "i386-gen.c"
 248 #endif
 249 #ifdef TCC_TARGET_X86_64
 250 # include "x86_64-gen.c"
 251 #endif
 252 #ifdef TCC_TARGET_ARM
 253 # include "arm-gen.c"
 254 #endif
 255 #ifdef TCC_TARGET_C67
 256 # include "coff.h"
 257 # include "c67-gen.c"
 258 #endif
 259 #undef TARGET_DEFS_ONLY
 260
 261 /* -------------------------------------------- */
 262
 263 #define INCLUDE_STACK_SIZE  32
 264 #define IFDEF_STACK_SIZE    64
 265 #define VSTACK_SIZE         256
 266 #define STRING_MAX_SIZE     1024
 267 #define PACK_STACK_SIZE     8
 268
 269 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 270 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 271 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 272
 273 /* token symbol management */
 274 typedef struct TokenSym {
 275     struct TokenSym *hash_next;
 276     struct Sym *sym_define; /* direct pointer to define */
 277     struct Sym *sym_label; /* direct pointer to label */
 278     struct Sym *sym_struct; /* direct pointer to structure */
 279     struct Sym *sym_identifier; /* direct pointer to identifier */
 280     int tok; /* token number */
 281     int len;
 282     char str[1];
 283 } TokenSym;
 284
 285 #ifdef TCC_TARGET_PE
 286 typedef unsigned short nwchar_t;
 287 #else
 288 typedef int nwchar_t;
 289 #endif
 290
 291 typedef struct CString {
 292     int size; /* size in bytes */
 293     void *data; /* either 'char *' or 'nwchar_t *' */
 294     int size_allocated;
 295     void *data_allocated; /* if non NULL, data has been malloced */
 296 } CString;
 297
 298 /* type definition */
 299 typedef struct CType {
 300     int t;
 301     struct Sym *ref;
 302 } CType;
 303
 304 /* constant value */
 305 typedef union CValue {
 306     long double ld;
 307     double d;
 308     float f;
 309     int i;
 310     unsigned int ui;
 311     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 312     long long ll;
 313     unsigned long long ull;
 314     struct CString *cstr;
 315     void *ptr;
 316     int tab[LDOUBLE_SIZE/4];
 317 } CValue;
 318
 319 /* value on stack */
 320 typedef struct SValue {
 321     CType type;      /* type */
 322     unsigned short r;      /* register + flags */
 323     unsigned short r2;     /* second register, used for 'long long'
 324                               type. If not used, set to VT_CONST */
 325     CValue c;              /* constant, if VT_CONST */
 326     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 327 } SValue;
 328
 329 /* symbol management */
 330 typedef struct Sym {
 331     int v;    /* symbol token */
 332     char *asm_label;    /* associated asm label */
 333     long r;    /* associated register */
 334     union {
 335         long c;    /* associated number */
 336         int *d;   /* define token stream */
 337     };
 338     CType type;    /* associated type */
 339     union {
 340         struct Sym *next; /* next related symbol */
 341         long jnext; /* next jump label */
 342     };
 343     struct Sym *prev; /* prev symbol in stack */
 344     struct Sym *prev_tok; /* previous symbol for this token */
 345 } Sym;
 346
 347 /* section definition */
 348 /* XXX: use directly ELF structure for parameters ? */
 349 /* special flag to indicate that the section should not be linked to
 350    the other ones */
 351 #define SHF_PRIVATE 0x80000000
 352
 353 /* special flag, too */
 354 #define SECTION_ABS ((void *)1)
 355
 356 typedef struct Section {
 357     unsigned long data_offset; /* current data offset */
 358     unsigned char *data;       /* section data */
 359     unsigned long data_allocated; /* used for realloc() handling */
 360     int sh_name;             /* elf section name (only used during output) */
 361     int sh_num;              /* elf section number */
 362     int sh_type;             /* elf section type */
 363     int sh_flags;            /* elf section flags */
 364     int sh_info;             /* elf section info */
 365     int sh_addralign;        /* elf section alignment */
 366     int sh_entsize;          /* elf entry size */
 367     unsigned long sh_size;   /* section size (only used during output) */
 368     addr_t sh_addr;          /* address at which the section is relocated */
 369     unsigned long sh_offset; /* file offset */
 370     int nb_hashed_syms;      /* used to resize the hash table */
 371     struct Section *link;    /* link to another section */
 372     struct Section *reloc;   /* corresponding section for relocation, if any */
 373     struct Section *hash;     /* hash table for symbols */
 374     struct Section *next;
 375     char name[1];           /* section name */
 376 } Section;
 377
 378 typedef struct DLLReference {
 379     int level;
 380     void *handle;
 381     char name[1];
 382 } DLLReference;
 383
 384 /* GNUC attribute definition */
 385 typedef struct AttributeDef {
 386     unsigned
 387       func_call     : 3, /* calling convention (0..5), see below */
 388       aligned       : 5, /* alignement (0..16) */
 389       packed        : 1,
 390       func_export   : 1,
 391       func_import   : 1,
 392       func_args     : 5,
 393       func_proto    : 1,
 394       mode          : 4,
 395       weak          : 1,
 396       fill          : 10;
 397     struct Section *section;
 398     int alias_target;    /* token */
 399 } AttributeDef;
 400
 401 /* gr: wrappers for casting sym->r for other purposes */
 402 #define FUNC_CALL(r) (((AttributeDef*)&(r))->func_call)
 403 #define FUNC_EXPORT(r) (((AttributeDef*)&(r))->func_export)
 404 #define FUNC_IMPORT(r) (((AttributeDef*)&(r))->func_import)
 405 #define FUNC_ARGS(r) (((AttributeDef*)&(r))->func_args)
 406 #define FUNC_PROTO(r) (((AttributeDef*)&(r))->func_proto)
 407 #define FUNC_ALIGN(r) (((AttributeDef*)&(r))->aligned)
 408 #define FUNC_PACKED(r) (((AttributeDef*)&(r))->packed)
 409 #define ATTR_MODE(r)  (((AttributeDef*)&(r))->mode)
 410 #define INT_ATTR(ad) (*(int*)(ad))
 411
 412 /* -------------------------------------------------- */
 413
 414 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 415 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 416 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 417
 418 #define VLA_SP_LOC_SET     0x01 /* Location of SP on stack has been allocated */
 419 #define VLA_SP_SAVED       0x02 /* SP has been saved to slot already */
 420 #define VLA_NEED_NEW_FRAME 0x04 /* Needs new frame for next VLA */
 421 #define VLA_IN_SCOPE       0x08 /* One or more VLAs are in scope */
 422 #define VLA_SCOPE_FLAGS    (VLA_SP_SAVED|VLA_NEED_NEW_FRAME|VLA_IN_SCOPE) /* Flags which are saved and restored upon entering and exiting a block */
 423
 424 /* stored in 'Sym.c' field */
 425 #define FUNC_NEW       1 /* ansi function prototype */
 426 #define FUNC_OLD       2 /* old function prototype */
 427 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 428
 429 /* stored in 'Sym.r' field */
 430 #define FUNC_CDECL     0 /* standard c call */
 431 #define FUNC_STDCALL   1 /* pascal c call */
 432 #define FUNC_FASTCALL1 2 /* first param in %eax */
 433 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 434 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 435 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 436
 437 /* field 'Sym.t' for macros */
 438 #define MACRO_OBJ      0 /* object like macro */
 439 #define MACRO_FUNC     1 /* function like macro */
 440
 441 /* field 'Sym.r' for C labels */
 442 #define LABEL_DEFINED  0 /* label is defined */
 443 #define LABEL_FORWARD  1 /* label is forward defined */
 444 #define LABEL_DECLARED 2 /* label is declared but never used */
 445
 446 /* type_decl() types */
 447 #define TYPE_ABSTRACT  1 /* type without variable */
 448 #define TYPE_DIRECT    2 /* type with variable */
 449
 450 #define IO_BUF_SIZE 8192
 451
 452 typedef struct BufferedFile {
 453     uint8_t *buf_ptr;
 454     uint8_t *buf_end;
 455     int fd;
 456     struct BufferedFile *prev;
 457     int line_num;    /* current line number - here to simplify code */
 458     int ifndef_macro;  /* #ifndef macro / #endif search */
 459     int ifndef_macro_saved; /* saved ifndef_macro */
 460     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 461     char filename[1024];    /* filename */
 462     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 463 } BufferedFile;
 464
 465 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 466 #define CH_EOF   (-1)   /* end of file */
 467
 468 /* parsing state (used to save parser state to reparse part of the
 469    source several times) */
 470 typedef struct ParseState {
 471     const int *macro_ptr;
 472     int line_num;
 473     int tok;
 474     CValue tokc;
 475 } ParseState;
 476
 477 /* used to record tokens */
 478 typedef struct TokenString {
 479     int *str;
 480     int len;
 481     int allocated_len;
 482     int last_line_num;
 483 } TokenString;
 484
 485 /* inline functions */
 486 typedef struct InlineFunc {
 487     int *token_str;
 488     Sym *sym;
 489     char filename[1];
 490 } InlineFunc;
 491
 492 /* include file cache, used to find files faster and also to eliminate
 493    inclusion if the include file is protected by #ifndef ... #endif */
 494 typedef struct CachedInclude {
 495     int ifndef_macro;
 496     int hash_next; /* -1 if none */
 497     char filename[1]; /* path specified in #include */
 498 } CachedInclude;
 499
 500 #define CACHED_INCLUDES_HASH_SIZE 512
 501
 502 #ifdef CONFIG_TCC_ASM
 503 typedef struct ExprValue {
 504     uint32_t v;
 505     Sym *sym;
 506 } ExprValue;
 507
 508 #define MAX_ASM_OPERANDS 30
 509 typedef struct ASMOperand {
 510     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 511     char *constraint;
 512     char asm_str[16]; /* computed asm string for operand */
 513     SValue *vt; /* C value of the expression */
 514     int ref_index; /* if >= 0, gives reference to a output constraint */
 515     int input_index; /* if >= 0, gives reference to an input constraint */
 516     int priority; /* priority, used to assign registers */
 517     int reg; /* if >= 0, register number used for this operand */
 518     int is_llong; /* true if double register value */
 519     int is_memory; /* true if memory operand */
 520     int is_rw;     /* for '+' modifier */
 521 } ASMOperand;
 522 #endif
 523
 524 struct sym_attr {
 525     unsigned long got_offset;
 526 #ifdef TCC_TARGET_ARM
 527     unsigned char plt_thumb_stub:1;
 528 #endif
 529 };
 530
 531 struct TCCState {
 532
 533     int verbose; /* if true, display some information during compilation */
 534     int nostdinc; /* if true, no standard headers are added */
 535     int nostdlib; /* if true, no standard libraries are added */
 536     int nocommon; /* if true, do not use common symbols for .bss data */
 537     int static_link; /* if true, static linking is performed */
 538     int rdynamic; /* if true, all symbols are exported */
 539     int symbolic; /* if true, resolve symbols in the current module first */
 540     int alacarte_link; /* if true, only link in referenced objects from archive */
 541
 542     char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
 543     char *soname; /* as specified on the command line (-soname) */
 544     char *rpath; /* as specified on the command line (-Wl,-rpath=) */
 545
 546     /* output type, see TCC_OUTPUT_XXX */
 547     int output_type;
 548     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 549     int output_format;
 550
 551     /* C language options */
 552     int char_is_unsigned;
 553     int leading_underscore;
 554
 555     /* warning switches */
 556     int warn_write_strings;
 557     int warn_unsupported;
 558     int warn_error;
 559     int warn_none;
 560     int warn_implicit_function_declaration;
 561
 562     /* compile with debug symbol (and use them if error during execution) */
 563     int do_debug;
 564 #ifdef CONFIG_TCC_BCHECK
 565     /* compile with built-in memory and bounds checker */
 566     int do_bounds_check;
 567 #endif
 568
 569     addr_t text_addr; /* address of text section */
 570     int has_text_addr;
 571
 572     unsigned long section_align; /* section alignment */
 573
 574     char *init_symbol; /* symbols to call at load-time (not used currently) */
 575     char *fini_symbol; /* symbols to call at unload-time (not used currently) */
 576
 577 #ifdef TCC_TARGET_I386
 578     int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
 579 #endif
 580
 581     /* array of all loaded dlls (including those referenced by loaded dlls) */
 582     DLLReference **loaded_dlls;
 583     int nb_loaded_dlls;
 584
 585     /* include paths */
 586     char **include_paths;
 587     int nb_include_paths;
 588
 589     char **sysinclude_paths;
 590     int nb_sysinclude_paths;
 591
 592     /* library paths */
 593     char **library_paths;
 594     int nb_library_paths;
 595
 596     /* crt?.o object path */
 597     char **crt_paths;
 598     int nb_crt_paths;
 599
 600     /* error handling */
 601     void *error_opaque;
 602     void (*error_func)(void *opaque, const char *msg);
 603     int error_set_jmp_enabled;
 604     jmp_buf error_jmp_buf;
 605     int nb_errors;
 606
 607     /* output file for preprocessing (-E) */
 608     FILE *ppfp;
 609
 610     /* for -MD/-MF: collected dependencies for this compilation */
 611     char **target_deps;
 612     int nb_target_deps;
 613
 614     /* compilation */
 615     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 616     BufferedFile **include_stack_ptr;
 617
 618     int ifdef_stack[IFDEF_STACK_SIZE];
 619     int *ifdef_stack_ptr;
 620
 621     /* included files enclosed with #ifndef MACRO */
 622     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 623     CachedInclude **cached_includes;
 624     int nb_cached_includes;
 625
 626     /* #pragma pack stack */
 627     int pack_stack[PACK_STACK_SIZE];
 628     int *pack_stack_ptr;
 629
 630     /* inline functions are stored as token lists and compiled last
 631        only if referenced */
 632     struct InlineFunc **inline_fns;
 633     int nb_inline_fns;
 634
 635     /* sections */
 636     Section **sections;
 637     int nb_sections; /* number of sections, including first dummy section */
 638
 639     Section **priv_sections;
 640     int nb_priv_sections; /* number of private sections */
 641
 642     /* got & plt handling */
 643     Section *got;
 644     Section *plt;
 645     struct sym_attr *sym_attrs;
 646     int nb_sym_attrs;
 647     /* give the correspondance from symtab indexes to dynsym indexes */
 648     int *symtab_to_dynsym;
 649
 650     /* temporary dynamic symbol sections (for dll loading) */
 651     Section *dynsymtab_section;
 652     /* exported dynamic symbol section */
 653     Section *dynsym;
 654     /* copy of the gobal symtab_section variable */
 655     Section *symtab;
 656     /* tiny assembler state */
 657     Sym *asm_labels;
 658
 659 #ifdef TCC_TARGET_PE
 660     /* PE info */
 661     int pe_subsystem;
 662     unsigned pe_file_align;
 663     unsigned pe_stack_size;
 664 # ifdef TCC_TARGET_X86_64
 665     Section *uw_pdata;
 666     int uw_sym;
 667     unsigned uw_offs;
 668 # endif
 669 #endif
 670
 671 #ifdef TCC_IS_NATIVE
 672     const char *runtime_main;
 673     /* for tcc_relocate */
 674     void *runtime_mem;
 675 # ifdef HAVE_SELINUX
 676     void *write_mem;
 677     unsigned long mem_size;
 678 # endif
 679 # if !defined TCC_TARGET_PE && (defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM)
 680     /* write PLT and GOT here */
 681     char *runtime_plt_and_got;
 682     unsigned runtime_plt_and_got_offset;
 683 #  define TCC_HAS_RUNTIME_PLTGOT
 684 # endif
 685 #endif
 686
 687     /* used by main and tcc_parse_args only */
 688     char **files; /* files seen on command line */
 689     int nb_files; /* number thereof */
 690     int nb_libraries; /* number of libs thereof */
 691     char *outfile; /* output filename */
 692     char *option_m; /* only -m32/-m64 handled */
 693     int print_search_dirs; /* option */
 694     int option_r; /* option -r */
 695     int do_bench; /* option -bench */
 696     int gen_deps; /* option -MD  */
 697     char *deps_outfile; /* option -MF */
 698 };
 699
 700 /* The current value can be: */
 701 #define VT_VALMASK   0x003f  /* mask for value location, register or: */
 702 #define VT_CONST     0x0030  /* constant in vc (must be first non register value) */
 703 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 704 #define VT_LOCAL     0x0032  /* offset on stack */
 705 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 706 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 707 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 708 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 709 #define VT_LVAL      0x0100  /* var is an lvalue */
 710 #define VT_SYM       0x0200  /* a symbol value is added */
 711 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 712                                 char/short stored in integer registers) */
 713 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 714                                 dereferencing value */
 715 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 716                                 bounding function call point is in vc */
 717 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 718 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 719 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 720 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 721
 722 /* types */
 723 #define VT_BTYPE       0x000f  /* mask for basic type */
 724 #define VT_INT              0  /* integer type */
 725 #define VT_BYTE             1  /* signed byte type */
 726 #define VT_SHORT            2  /* short type */
 727 #define VT_VOID             3  /* void type */
 728 #define VT_PTR              4  /* pointer */
 729 #define VT_ENUM             5  /* enum definition */
 730 #define VT_FUNC             6  /* function type */
 731 #define VT_STRUCT           7  /* struct/union definition */
 732 #define VT_FLOAT            8  /* IEEE float */
 733 #define VT_DOUBLE           9  /* IEEE double */
 734 #define VT_LDOUBLE         10  /* IEEE long double */
 735 #define VT_BOOL            11  /* ISOC99 boolean type */
 736 #define VT_LLONG           12  /* 64 bit integer */
 737 #define VT_LONG            13  /* long integer (NEVER USED as type, only
 738                                   during parsing) */
 739 #define VT_QLONG           14  /* 128-bit integer. Only used for x86-64 ABI */
 740 #define VT_QFLOAT          15  /* 128-bit float. Only used for x86-64 ABI */
 741 #define VT_UNSIGNED    0x0010  /* unsigned type */
 742 #define VT_ARRAY       0x0020  /* array type (also has VT_PTR) */
 743 #define VT_BITFIELD    0x0040  /* bitfield modifier */
 744 #define VT_CONSTANT    0x0800  /* const modifier */
 745 #define VT_VOLATILE    0x1000  /* volatile modifier */
 746 #define VT_SIGNED      0x2000  /* signed type */
 747 #define VT_VLA     0x00020000  /* VLA type (also has VT_PTR and VT_ARRAY) */
 748
 749 /* storage */
 750 #define VT_EXTERN  0x00000080  /* extern definition */
 751 #define VT_STATIC  0x00000100  /* static variable */
 752 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 753 #define VT_INLINE  0x00000400  /* inline definition */
 754 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 755 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 756 #define VT_WEAK    0x00010000  /* weak symbol */
 757 #define VT_TLS     0x00040000  /* thread-local storage */
 758
 759 #define VT_STRUCT_SHIFT 19     /* shift for bitfield shift values (max: 32 - 2*6) */
 760
 761 /* type mask (except storage) */
 762 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 763 #define VT_TYPE (~(VT_STORAGE))
 764
 765 /* token values */
 766
 767 /* warning: the following compare tokens depend on i386 asm code */
 768 #define TOK_ULT 0x92
 769 #define TOK_UGE 0x93
 770 #define TOK_EQ  0x94
 771 #define TOK_NE  0x95
 772 #define TOK_ULE 0x96
 773 #define TOK_UGT 0x97
 774 #define TOK_Nset 0x98
 775 #define TOK_Nclear 0x99
 776 #define TOK_LT  0x9c
 777 #define TOK_GE  0x9d
 778 #define TOK_LE  0x9e
 779 #define TOK_GT  0x9f
 780
 781 #define TOK_LAND  0xa0
 782 #define TOK_LOR   0xa1
 783
 784 #define TOK_DEC   0xa2
 785 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 786 #define TOK_INC   0xa4
 787 #define TOK_UDIV  0xb0 /* unsigned division */
 788 #define TOK_UMOD  0xb1 /* unsigned modulo */
 789 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 790 #define TOK_CINT   0xb3 /* number in tokc */
 791 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 792 #define TOK_STR   0xb5 /* pointer to string in tokc */
 793 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 794 #define TOK_LCHAR    0xb7
 795 #define TOK_LSTR     0xb8
 796 #define TOK_CFLOAT   0xb9 /* float constant */
 797 #define TOK_LINENUM  0xba /* line number info */
 798 #define TOK_CDOUBLE  0xc0 /* double constant */
 799 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 800 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 801 #define TOK_ADDC1    0xc3 /* add with carry generation */
 802 #define TOK_ADDC2    0xc4 /* add with carry use */
 803 #define TOK_SUBC1    0xc5 /* add with carry generation */
 804 #define TOK_SUBC2    0xc6 /* add with carry use */
 805 #define TOK_CUINT    0xc8 /* unsigned int constant */
 806 #define TOK_CLLONG   0xc9 /* long long constant */
 807 #define TOK_CULLONG  0xca /* unsigned long long constant */
 808 #define TOK_ARROW    0xcb
 809 #define TOK_DOTS     0xcc /* three dots */
 810 #define TOK_SHR      0xcd /* unsigned shift right */
 811 #define TOK_PPNUM    0xce /* preprocessor number */
 812 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 813
 814 #define TOK_SHL   0x01 /* shift left */
 815 #define TOK_SAR   0x02 /* signed shift right */
 816
 817 /* assignement operators : normal operator or 0x80 */
 818 #define TOK_A_MOD 0xa5
 819 #define TOK_A_AND 0xa6
 820 #define TOK_A_MUL 0xaa
 821 #define TOK_A_ADD 0xab
 822 #define TOK_A_SUB 0xad
 823 #define TOK_A_DIV 0xaf
 824 #define TOK_A_XOR 0xde
 825 #define TOK_A_OR  0xfc
 826 #define TOK_A_SHL 0x81
 827 #define TOK_A_SAR 0x82
 828
 829 #ifndef offsetof
 830 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 831 #endif
 832
 833 #ifndef countof
 834 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 835 #endif
 836
 837 #define TOK_EOF       (-1)  /* end of file */
 838 #define TOK_LINEFEED  10    /* line feed */
 839
 840 /* all identificators and strings have token above that */
 841 #define TOK_IDENT 256
 842
 843 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 844 #define TOK_ASM_int TOK_INT
 845 #define TOK_ASM_weak TOK_WEAK1
 846
 847 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 848 /* only used for i386 asm opcodes definitions */
 849 #define DEF_BWL(x) \
 850  DEF(TOK_ASM_ ## x ## b, #x "b") \
 851  DEF(TOK_ASM_ ## x ## w, #x "w") \
 852  DEF(TOK_ASM_ ## x ## l, #x "l") \
 853  DEF(TOK_ASM_ ## x, #x)
 854 #define DEF_WL(x) \
 855  DEF(TOK_ASM_ ## x ## w, #x "w") \
 856  DEF(TOK_ASM_ ## x ## l, #x "l") \
 857  DEF(TOK_ASM_ ## x, #x)
 858 #ifdef TCC_TARGET_X86_64
 859 # define DEF_BWLQ(x) \
 860  DEF(TOK_ASM_ ## x ## b, #x "b") \
 861  DEF(TOK_ASM_ ## x ## w, #x "w") \
 862  DEF(TOK_ASM_ ## x ## l, #x "l") \
 863  DEF(TOK_ASM_ ## x ## q, #x "q") \
 864  DEF(TOK_ASM_ ## x, #x)
 865 # define DEF_WLQ(x) \
 866  DEF(TOK_ASM_ ## x ## w, #x "w") \
 867  DEF(TOK_ASM_ ## x ## l, #x "l") \
 868  DEF(TOK_ASM_ ## x ## q, #x "q") \
 869  DEF(TOK_ASM_ ## x, #x)
 870 # define DEF_BWLX DEF_BWLQ
 871 # define DEF_WLX DEF_WLQ
 872 /* number of sizes + 1 */
 873 # define NBWLX 5
 874 #else
 875 # define DEF_BWLX DEF_BWL
 876 # define DEF_WLX DEF_WL
 877 /* number of sizes + 1 */
 878 # define NBWLX 4
 879 #endif
 880
 881 #define DEF_FP1(x) \
 882  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 883  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 884  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 885  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 886
 887 #define DEF_FP(x) \
 888  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 889  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 890  DEF_FP1(x)
 891
 892 #define DEF_ASMTEST(x) \
 893  DEF_ASM(x ## o) \
 894  DEF_ASM(x ## no) \
 895  DEF_ASM(x ## b) \
 896  DEF_ASM(x ## c) \
 897  DEF_ASM(x ## nae) \
 898  DEF_ASM(x ## nb) \
 899  DEF_ASM(x ## nc) \
 900  DEF_ASM(x ## ae) \
 901  DEF_ASM(x ## e) \
 902  DEF_ASM(x ## z) \
 903  DEF_ASM(x ## ne) \
 904  DEF_ASM(x ## nz) \
 905  DEF_ASM(x ## be) \
 906  DEF_ASM(x ## na) \
 907  DEF_ASM(x ## nbe) \
 908  DEF_ASM(x ## a) \
 909  DEF_ASM(x ## s) \
 910  DEF_ASM(x ## ns) \
 911  DEF_ASM(x ## p) \
 912  DEF_ASM(x ## pe) \
 913  DEF_ASM(x ## np) \
 914  DEF_ASM(x ## po) \
 915  DEF_ASM(x ## l) \
 916  DEF_ASM(x ## nge) \
 917  DEF_ASM(x ## nl) \
 918  DEF_ASM(x ## ge) \
 919  DEF_ASM(x ## le) \
 920  DEF_ASM(x ## ng) \
 921  DEF_ASM(x ## nle) \
 922  DEF_ASM(x ## g)
 923
 924 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
 925
 926 enum tcc_token {
 927     TOK_LAST = TOK_IDENT - 1,
 928 #define DEF(id, str) id,
 929 #include "tcctok.h"
 930 #undef DEF
 931 };
 932
 933 #define TOK_UIDENT TOK_DEFINE
 934
 935 #ifdef _WIN32
 936 #define snprintf _snprintf
 937 #define vsnprintf _vsnprintf
 938 #ifndef __GNUC__
 939 # define strtold (long double)strtod
 940 # define strtof (float)strtod
 941 # define strtoll _strtoi64
 942 # define strtoull _strtoui64
 943 #endif
 944 #else
 945 /* XXX: need to define this to use them in non ISOC99 context */
 946 extern float strtof (const char *__nptr, char **__endptr);
 947 extern long double strtold (const char *__nptr, char **__endptr);
 948 #endif
 949
 950 #ifdef _WIN32
 951 #define IS_DIRSEP(c) (c == '/' || c == '\\')
 952 #define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
 953 #define PATHCMP stricmp
 954 #else
 955 #define IS_DIRSEP(c) (c == '/')
 956 #define IS_ABSPATH(p) IS_DIRSEP(p[0])
 957 #define PATHCMP strcmp
 958 #endif
 959
 960 #ifdef TCC_TARGET_PE
 961 #define PATHSEP ';'
 962 #else
 963 #define PATHSEP ':'
 964 #endif
 965
 966 /* space exlcuding newline */
 967 static inline int is_space(int ch)
 968 {
 969     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 970 }
 971
 972 static inline int isid(int c)
 973 {
 974     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 975 }
 976
 977 static inline int isnum(int c)
 978 {
 979     return c >= '0' && c <= '9';
 980 }
 981
 982 static inline int isoct(int c)
 983 {
 984     return c >= '0' && c <= '7';
 985 }
 986
 987 static inline int toup(int c)
 988 {
 989     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 990 }
 991
 992 #ifndef PUB_FUNC
 993 # define PUB_FUNC
 994 #endif
 995
 996 #ifdef ONE_SOURCE
 997 #define ST_INLN static inline
 998 #define ST_FUNC static
 999 #define ST_DATA static
1000 #else
1001 #define ST_INLN
1002 #define ST_FUNC
1003 #define ST_DATA extern
1004 #endif
1005
1006 /* ------------ libtcc.c ------------ */
1007
1008 /* use GNU C extensions */
1009 ST_DATA int gnu_ext;
1010 /* use Tiny C extensions */
1011 ST_DATA int tcc_ext;
1012 /* XXX: get rid of this ASAP */
1013 ST_DATA struct TCCState *tcc_state;
1014
1015 #ifdef MEM_DEBUG
1016 ST_DATA int mem_cur_size;
1017 ST_DATA int mem_max_size;
1018 #endif
1019
1020 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
1021 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
1022 #define AFF_PREPROCESS      0x0004 /* preprocess file */
1023
1024 /* public functions currently used by the tcc main function */
1025 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1026 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1027 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1028 PUB_FUNC char *tcc_basename(const char *name);
1029 PUB_FUNC char *tcc_fileextension (const char *name);
1030 PUB_FUNC void tcc_free(void *ptr);
1031 PUB_FUNC void *tcc_malloc(unsigned long size);
1032 PUB_FUNC void *tcc_mallocz(unsigned long size);
1033 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1034 PUB_FUNC char *tcc_strdup(const char *str);
1035 #define free(p) use_tcc_free(p)
1036 #define malloc(s) use_tcc_malloc(s)
1037 #define realloc(p, s) use_tcc_realloc(p, s)
1038 #undef strdup
1039 #define strdup(s) use_tcc_strdup(s)
1040 PUB_FUNC void tcc_memstats(void);
1041 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1042 PUB_FUNC void tcc_error(const char *fmt, ...);
1043 PUB_FUNC void tcc_warning(const char *fmt, ...);
1044
1045 /* other utilities */
1046 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1047 ST_FUNC void dynarray_reset(void *pp, int *n);
1048 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1049 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1050 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1051 ST_FUNC void cstr_new(CString *cstr);
1052 ST_FUNC void cstr_free(CString *cstr);
1053 ST_FUNC void cstr_reset(CString *cstr);
1054
1055 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1056 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1057 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1058 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1059 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1060
1061 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1062 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1063 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1064
1065 ST_INLN void sym_free(Sym *sym);
1066 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1067 ST_FUNC Sym *sym_find2(Sym *s, int v);
1068 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1069 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1070 ST_INLN Sym *struct_find(int v);
1071 ST_INLN Sym *sym_find(int v);
1072 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1073
1074 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1075 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1076 ST_FUNC void tcc_close(void);
1077
1078 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1079 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1080 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1081
1082 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1083 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1084
1085 PUB_FUNC void tcc_set_environment(TCCState *s);
1086
1087 /* ------------ tccpp.c ------------ */
1088
1089 ST_DATA struct BufferedFile *file;
1090 ST_DATA int ch, tok;
1091 ST_DATA CValue tokc;
1092 ST_DATA const int *macro_ptr;
1093 ST_DATA int parse_flags;
1094 ST_DATA int tok_flags;
1095 ST_DATA CString tokcstr; /* current parsed string, if any */
1096
1097 /* display benchmark infos */
1098 ST_DATA int total_lines;
1099 ST_DATA int total_bytes;
1100 ST_DATA int tok_ident;
1101 ST_DATA TokenSym **table_ident;
1102
1103 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1104 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1105 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1106 #define TOK_FLAG_EOF   0x0008 /* end of file */
1107
1108 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1109 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1110 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1111                                         token. line feed is also
1112                                         returned at eof */
1113 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1114 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1115
1116 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1117 ST_FUNC char *get_tok_str(int v, CValue *cv);
1118 ST_FUNC void save_parse_state(ParseState *s);
1119 ST_FUNC void restore_parse_state(ParseState *s);
1120 ST_INLN void tok_str_new(TokenString *s);
1121 ST_FUNC void tok_str_free(int *str);
1122 ST_FUNC void tok_str_add(TokenString *s, int t);
1123 ST_FUNC void tok_str_add_tok(TokenString *s);
1124 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1125 ST_FUNC void define_undef(Sym *s);
1126 ST_INLN Sym *define_find(int v);
1127 ST_FUNC void free_defines(Sym *b);
1128 ST_FUNC Sym *label_find(int v);
1129 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1130 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1131 ST_FUNC void parse_define(void);
1132 ST_FUNC void preprocess(int is_bof);
1133 ST_FUNC void next_nomacro(void);
1134 ST_FUNC void next(void);
1135 ST_INLN void unget_tok(int last_tok);
1136 ST_FUNC void preprocess_init(TCCState *s1);
1137 ST_FUNC void preprocess_new(void);
1138 ST_FUNC int tcc_preprocess(TCCState *s1);
1139 ST_FUNC void skip(int c);
1140 ST_FUNC void expect(const char *msg);
1141
1142 /* ------------ tccgen.c ------------ */
1143
1144 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1145 ST_DATA Section *tdata_section, *tbss_section; /* thread-local storage sections */
1146 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1147 #ifdef CONFIG_TCC_ASM
1148 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1149 #endif
1150 #ifdef CONFIG_TCC_BCHECK
1151 /* bound check related sections */
1152 ST_DATA Section *bounds_section; /* contains global data bound description */
1153 ST_DATA Section *lbounds_section; /* contains local data bound description */
1154 #endif
1155 /* symbol sections */
1156 ST_DATA Section *symtab_section, *strtab_section;
1157 /* debug sections */
1158 ST_DATA Section *stab_section, *stabstr_section;
1159
1160 #define SYM_POOL_NB (8192 / sizeof(Sym))
1161 ST_DATA Sym *sym_free_first;
1162 ST_DATA void **sym_pools;
1163 ST_DATA int nb_sym_pools;
1164
1165 ST_DATA Sym *global_stack;
1166 ST_DATA Sym *local_stack;
1167 ST_DATA Sym *local_label_stack;
1168 ST_DATA Sym *global_label_stack;
1169 ST_DATA Sym *define_stack;
1170 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1171 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
1172 #define vstack  (__vstack + 1)
1173 ST_DATA int rsym, anon_sym, ind, loc;
1174
1175 ST_DATA int const_wanted; /* true if constant wanted */
1176 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1177 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1178 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1179 ST_DATA int func_vc;
1180 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1181 ST_DATA char *funcname;
1182
1183 ST_INLN int is_float(int t);
1184 ST_FUNC int ieee_finite(double d);
1185 ST_FUNC void test_lvalue(void);
1186 ST_FUNC void swap(int *p, int *q);
1187 ST_FUNC void vpushi(int v);
1188 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1189 ST_FUNC void vset(CType *type, int r, int v);
1190 ST_FUNC void vswap(void);
1191 ST_FUNC void vpush_global_sym(CType *type, int v);
1192 ST_FUNC void vrote(SValue *e, int n);
1193 ST_FUNC void vrott(int n);
1194 ST_FUNC void vrotb(int n);
1195 #ifdef TCC_TARGET_ARM
1196 ST_FUNC int get_reg_ex(int rc, int rc2);
1197 ST_FUNC void lexpand_nr(void);
1198 #endif
1199 ST_FUNC void vpushv(SValue *v);
1200 ST_FUNC void save_reg(int r);
1201 ST_FUNC int get_reg(int rc);
1202 ST_FUNC void save_regs(int n);
1203 ST_FUNC int gv(int rc);
1204 ST_FUNC void gv2(int rc1, int rc2);
1205 ST_FUNC void vpop(void);
1206 ST_FUNC void gen_op(int op);
1207 ST_FUNC int type_size(CType *type, int *a);
1208 ST_FUNC void mk_pointer(CType *type);
1209 ST_FUNC void vstore(void);
1210 ST_FUNC void inc(int post, int c);
1211 ST_FUNC void parse_asm_str(CString *astr);
1212 ST_FUNC int lvalue_type(int t);
1213 ST_FUNC void indir(void);
1214 ST_FUNC void unary(void);
1215 ST_FUNC void expr_prod(void);
1216 ST_FUNC void expr_sum(void);
1217 ST_FUNC void gexpr(void);
1218 ST_FUNC int expr_const(void);
1219 ST_FUNC void gen_inline_functions(void);
1220 ST_FUNC void decl(int l);
1221 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1222 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1223 #endif
1224 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1225 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1226 #endif
1227
1228 /* ------------ tccelf.c ------------ */
1229
1230 #define TCC_OUTPUT_FORMAT_ELF    0 /* default output format: ELF */
1231 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1232 #define TCC_OUTPUT_FORMAT_COFF   2 /* COFF */
1233
1234 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1235
1236 typedef struct {
1237     unsigned int n_strx;         /* index into string table of name */
1238     unsigned char n_type;         /* type of symbol */
1239     unsigned char n_other;        /* misc info (usually empty) */
1240     unsigned short n_desc;        /* description field */
1241     unsigned int n_value;        /* value of symbol */
1242 } Stab_Sym;
1243
1244 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);
1245
1246 ST_FUNC int put_elf_str(Section *s, const char *sym);
1247 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1248 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1249 ST_FUNC int find_elf_sym(Section *s, const char *name);
1250 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1251
1252 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1253 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1254 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1255 ST_FUNC void put_stabd(int type, int other, int desc);
1256
1257 ST_FUNC void relocate_common_syms(void);
1258 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1259 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1260
1261 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1262 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1263 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1264 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1265
1266 ST_FUNC void build_got_entries(TCCState *s1);
1267 ST_FUNC void tcc_add_runtime(TCCState *s1);
1268
1269 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1270 #ifdef TCC_IS_NATIVE
1271 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1272 #endif
1273
1274 #ifndef TCC_TARGET_PE
1275 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1276 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1277 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1278 ST_FUNC void minp(void);
1279 ST_INLN void inp(void);
1280 ST_FUNC int handle_eob(void);
1281 #endif
1282
1283 /* ------------ xxx-gen.c ------------ */
1284
1285 ST_DATA const int reg_classes[NB_REGS];
1286
1287 ST_FUNC void gsym_addr(int t, int a);
1288 ST_FUNC void gsym(int t);
1289 ST_FUNC void load(int r, SValue *sv);
1290 ST_FUNC void store(int r, SValue *v);
1291 ST_FUNC int gfunc_sret(CType *vt, CType *ret, int *align);
1292 ST_FUNC void gfunc_call(int nb_args);
1293 ST_FUNC void gfunc_prolog(CType *func_type);
1294 ST_FUNC void gfunc_epilog(void);
1295 ST_FUNC int gjmp(int t);
1296 ST_FUNC void gjmp_addr(int a);
1297 ST_FUNC int gtst(int inv, int t);
1298 ST_FUNC void gen_opi(int op);
1299 ST_FUNC void gen_opf(int op);
1300 ST_FUNC void gen_cvt_ftoi(int t);
1301 ST_FUNC void gen_cvt_ftof(int t);
1302 ST_FUNC void ggoto(void);
1303 #ifndef TCC_TARGET_C67
1304 ST_FUNC void o(unsigned int c);
1305 #endif
1306 #ifndef TCC_TARGET_ARM
1307 ST_FUNC void gen_cvt_itof(int t);
1308 #endif
1309 ST_FUNC void gen_vla_sp_save(int addr);
1310 ST_FUNC void gen_vla_sp_restore(int addr);
1311 ST_FUNC void gen_vla_alloc(CType *type, int align);
1312
1313 /* ------------ i386-gen.c ------------ */
1314 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1315 ST_FUNC void g(int c);
1316 ST_FUNC int oad(int c, int s);
1317 ST_FUNC void gen_le16(int c);
1318 ST_FUNC void gen_le32(int c);
1319 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1320 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1321 #endif
1322
1323 #ifdef CONFIG_TCC_BCHECK
1324 ST_FUNC void gen_bounded_ptr_add(void);
1325 ST_FUNC void gen_bounded_ptr_deref(void);
1326 #endif
1327
1328 /* ------------ x86_64-gen.c ------------ */
1329 #ifdef TCC_TARGET_X86_64
1330 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1331 ST_FUNC void gen_opl(int op);
1332 #endif
1333
1334 /* ------------ arm-gen.c ------------ */
1335 #ifdef TCC_TARGET_ARM
1336 ST_FUNC void arm_init_types(void);
1337 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1338 ST_FUNC void gen_cvt_itof1(int t);
1339 #endif
1340
1341 /* ------------ c67-gen.c ------------ */
1342 #ifdef TCC_TARGET_C67
1343 #endif
1344
1345 /* ------------ tcccoff.c ------------ */
1346
1347 #ifdef TCC_TARGET_COFF
1348 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1349 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1350 #endif
1351
1352 /* ------------ tccasm.c ------------ */
1353 ST_FUNC void asm_instr(void);
1354 ST_FUNC void asm_global_instr(void);
1355 #ifdef CONFIG_TCC_ASM
1356 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1357 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1358 ST_FUNC int asm_int_expr(TCCState *s1);
1359 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1360 /* ------------ i386-asm.c ------------ */
1361 ST_FUNC void gen_expr32(ExprValue *pe);
1362 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1363 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1364 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1365 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1366 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1367 #endif
1368
1369 /* ------------ tccpe.c -------------- */
1370 #ifdef TCC_TARGET_PE
1371 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1372 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1373 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1374 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1375 #ifdef TCC_TARGET_X86_64
1376 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1377 #endif
1378 #endif
1379
1380 /* ------------ tccrun.c ----------------- */
1381 #ifdef TCC_IS_NATIVE
1382 #ifdef CONFIG_TCC_STATIC
1383 #define RTLD_LAZY       0x001
1384 #define RTLD_NOW        0x002
1385 #define RTLD_GLOBAL     0x100
1386 #define RTLD_DEFAULT    NULL
1387 /* dummy function for profiling */
1388 ST_FUNC void *dlopen(const char *filename, int flag);
1389 ST_FUNC void dlclose(void *p);
1390 ST_FUNC const char *dlerror(void);
1391 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1392 #elif !defined _WIN32
1393 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1394 #endif
1395
1396 #ifdef CONFIG_TCC_BACKTRACE
1397 ST_DATA int rt_num_callers;
1398 ST_DATA const char **rt_bound_error_msg;
1399 ST_DATA void *rt_prog_main;
1400 ST_FUNC void tcc_set_num_callers(int n);
1401 #endif
1402 #endif
1403
1404 /********************************************************/
1405 #undef ST_DATA
1406 #ifdef ONE_SOURCE
1407 #define ST_DATA static
1408 #else
1409 #define ST_DATA
1410 #endif
1411 /********************************************************/
1412 #endif /* _TCC_H */