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