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 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <stdarg.h>
  30 #include <string.h>
  31 #include <errno.h>
  32 #include <math.h>
  33 #include <signal.h>
  34 #include <fcntl.h>
  35 #include <setjmp.h>
  36 #include <time.h>
  37 #include <sys/stat.h>          /* stat() */
  38
  39 #ifndef _WIN32
  40 # include <unistd.h>
  41 # include <sys/time.h>
  42 # ifndef __OpenBSD__
  43 #  include <sys/ucontext.h>
  44 # endif
  45 # include <sys/mman.h>
  46 # ifndef CONFIG_TCC_STATIC
  47 #  include <dlfcn.h>
  48 # endif
  49 /* XXX: need to define this to use them in non ISOC99 context */
  50  extern float strtof (const char *__nptr, char **__endptr);
  51  extern long double strtold (const char *__nptr, char **__endptr);
  52 #else /* on _WIN32: */
  53 # include <windows.h>
  54 # include <sys/timeb.h>
  55 # include <io.h> /* open, close etc. */
  56 # include <direct.h> /* getcwd */
  57 # ifdef __GNUC__
  58 #  include <stdint.h>
  59 # endif
  60 # define inline __inline
  61 # define inp next_inp
  62 # define snprintf _snprintf
  63 # define vsnprintf _vsnprintf
  64 # ifndef __GNUC__
  65 #  define strtold (long double)strtod
  66 #  define strtof (float)strtod
  67 #  define strtoll _strtoi64
  68 #  define strtoull _strtoui64
  69 # endif
  70 # ifdef LIBTCC_AS_DLL
  71 #  define LIBTCCAPI __declspec(dllexport)
  72 #  define PUB_FUNC LIBTCCAPI
  73 # endif
  74 # ifdef _MSC_VER
  75 #  pragma warning (disable : 4244)  // conversion from 'uint64_t' to 'int', possible loss of data
  76 #  pragma warning (disable : 4267)  // conversion from 'size_t' to 'int', possible loss of data
  77 #  pragma warning (disable : 4996)  // The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name
  78 #  pragma warning (disable : 4018)  // signed/unsigned mismatch
  79 #  pragma warning (disable : 4146)  // unary minus operator applied to unsigned type, result still unsigned
  80 # endif
  81 # undef CONFIG_TCC_STATIC
  82 #endif
  83
  84 #ifndef O_BINARY
  85 # define O_BINARY 0
  86 #endif
  87
  88 #ifdef __GNUC__
  89 # define NORETURN __attribute__ ((noreturn))
  90 #elif defined _MSC_VER
  91 # define NORETURN __declspec(noreturn)
  92 #else
  93 # define NORETURN
  94 #endif
  95
  96 #ifdef _WIN32
  97 # define IS_DIRSEP(c) (c == '/' || c == '\\')
  98 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
  99 # define PATHCMP stricmp
 100 #else
 101 # define IS_DIRSEP(c) (c == '/')
 102 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
 103 # define PATHCMP strcmp
 104 #endif
 105
 106 #ifdef TCC_TARGET_PE
 107 #define PATHSEP ';'
 108 #else
 109 #define PATHSEP ':'
 110 #endif
 111
 112 #include "elf.h"
 113 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
 114 # define ELFCLASSW ELFCLASS64
 115 # define ElfW(type) Elf##64##_##type
 116 # define ELFW(type) ELF##64##_##type
 117 # define ElfW_Rel ElfW(Rela)
 118 # define SHT_RELX SHT_RELA
 119 # define REL_SECTION_FMT ".rela%s"
 120 /* XXX: DLL with PLT would only work with x86-64 for now */
 121 # define TCC_OUTPUT_DLL_WITH_PLT
 122 #else
 123 # define ELFCLASSW ELFCLASS32
 124 # define ElfW(type) Elf##32##_##type
 125 # define ELFW(type) ELF##32##_##type
 126 # define ElfW_Rel ElfW(Rel)
 127 # define SHT_RELX SHT_REL
 128 # define REL_SECTION_FMT ".rel%s"
 129 #endif
 130
 131 /* target address type */
 132 #define addr_t ElfW(Addr)
 133
 134 #include "stab.h"
 135 #include "libtcc.h"
 136
 137 /* parser debug */
 138 /* #define PARSE_DEBUG */
 139 /* preprocessor debug */
 140 /* #define PP_DEBUG */
 141 /* include file debug */
 142 /* #define INC_DEBUG */
 143 /* memory leak debug */
 144 /* #define MEM_DEBUG */
 145 /* assembler debug */
 146 /* #define ASM_DEBUG */
 147
 148 /* target selection */
 149 /* #define TCC_TARGET_I386   *//* i386 code generator */
 150 /* #define TCC_TARGET_ARM    *//* ARMv4 code generator */
 151 /* #define TCC_TARGET_ARM64  *//* ARMv8 code generator */
 152 /* #define TCC_TARGET_C67    *//* TMS320C67xx code generator */
 153 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
 154
 155 /* default target is I386 */
 156 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 157     !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
 158     !defined(TCC_TARGET_X86_64)
 159 #define TCC_TARGET_I386
 160 #endif
 161
 162 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 163     !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
 164     !defined(CONFIG_USE_LIBGCC)
 165 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 166 #endif
 167
 168 /* define it to include assembler support */
 169 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
 170     !defined(TCC_TARGET_C67)
 171 #define CONFIG_TCC_ASM
 172 #endif
 173
 174 /* object format selection */
 175 #if defined(TCC_TARGET_C67)
 176 #define TCC_TARGET_COFF
 177 #endif
 178
 179 /* only native compiler supports -run */
 180 #if defined _WIN32 == defined TCC_TARGET_PE
 181 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 182 #  define TCC_IS_NATIVE
 183 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 184 #  define TCC_IS_NATIVE
 185 # elif defined __arm__ && defined TCC_TARGET_ARM
 186 #  define TCC_IS_NATIVE
 187 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
 188 #  define TCC_IS_NATIVE
 189 # endif
 190 #endif
 191
 192 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 193 # define CONFIG_TCC_BACKTRACE
 194 #endif
 195
 196 /* ------------ path configuration ------------ */
 197
 198 #ifndef CONFIG_SYSROOT
 199 # define CONFIG_SYSROOT ""
 200 #endif
 201 #ifndef CONFIG_TCCDIR
 202 # define CONFIG_TCCDIR "."
 203 #endif
 204 #ifndef CONFIG_LDDIR
 205 # ifdef TCC_TARGET_X86_64
 206 #   define CONFIG_LDDIR "lib64"
 207 # else
 208 #   define CONFIG_LDDIR "lib"
 209 # endif
 210 #endif
 211
 212 #ifdef CONFIG_MULTIARCHDIR
 213 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
 214 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
 215 #else
 216 # define USE_MUADIR(s) s
 217 # define ALSO_MUADIR(s) s
 218 #endif
 219
 220 /* path to find crt1.o, crti.o and crtn.o */
 221 #ifndef CONFIG_TCC_CRTPREFIX
 222 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
 223 #endif
 224
 225 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 226
 227 /* system include paths */
 228 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 229 # ifdef TCC_TARGET_PE
 230 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 231 # else
 232 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 233         "{B}/include" \
 234     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
 235     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include")
 236 # endif
 237 #endif
 238
 239 /* library search paths */
 240 #ifndef CONFIG_TCC_LIBPATHS
 241 # ifdef TCC_TARGET_PE
 242 #  define CONFIG_TCC_LIBPATHS "{B}/lib"
 243 # else
 244 #  define CONFIG_TCC_LIBPATHS \
 245         ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
 246     ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
 247     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
 248 # endif
 249 #endif
 250
 251 /* name of ELF interpreter */
 252 #ifndef CONFIG_TCC_ELFINTERP
 253 # if defined __FreeBSD__
 254 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 255 # elif defined __FreeBSD_kernel__
 256 #  if defined(TCC_TARGET_X86_64)
 257 #   define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
 258 #  else
 259 #   define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
 260 #  endif
 261 # elif defined __DragonFly__
 262 #  define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
 263 # elif defined __NetBSD__
 264 #  define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
 265 # elif defined __GNU__
 266 #  define CONFIG_TCC_ELFINTERP "/lib/ld.so"
 267 # elif defined(TCC_TARGET_PE)
 268 #  define CONFIG_TCC_ELFINTERP "-"
 269 # elif defined(TCC_UCLIBC)
 270 #  define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
 271 # elif defined TCC_TARGET_ARM64
 272 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
 273 # elif defined(TCC_TARGET_X86_64)
 274 #  define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
 275 # elif !defined(TCC_ARM_EABI)
 276 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
 277 # endif
 278 #endif
 279
 280 /* var elf_interp dans *-gen.c */
 281 #ifdef CONFIG_TCC_ELFINTERP
 282 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
 283 #else
 284 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
 285 #endif
 286
 287 /* target specific subdir for libtcc1.a */
 288 #ifndef TCC_ARCH_DIR
 289 # define TCC_ARCH_DIR ""
 290 #endif
 291
 292 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 293 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
 294
 295 /* -------------------------------------------- */
 296 /* include the target specific definitions */
 297
 298 #define TARGET_DEFS_ONLY
 299 #ifdef TCC_TARGET_I386
 300 # include "i386-gen.c"
 301 #endif
 302 #ifdef TCC_TARGET_X86_64
 303 # include "x86_64-gen.c"
 304 #endif
 305 #ifdef TCC_TARGET_ARM
 306 # include "arm-gen.c"
 307 #endif
 308 #ifdef TCC_TARGET_ARM64
 309 # include "arm64-gen.c"
 310 #endif
 311 #ifdef TCC_TARGET_C67
 312 # include "coff.h"
 313 # include "c67-gen.c"
 314 #endif
 315 #undef TARGET_DEFS_ONLY
 316
 317 /* -------------------------------------------- */
 318
 319 #define INCLUDE_STACK_SIZE  32
 320 #define IFDEF_STACK_SIZE    64
 321 #define VSTACK_SIZE         256
 322 #define STRING_MAX_SIZE     1024
 323 #define TOKSTR_MAX_SIZE     256
 324 #define PACK_STACK_SIZE     8
 325
 326 #define TOK_HASH_SIZE       16384 /* must be a power of two */
 327 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 328 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 329
 330 /* token symbol management */
 331 typedef struct TokenSym {
 332     struct TokenSym *hash_next;
 333     struct Sym *sym_define; /* direct pointer to define */
 334     struct Sym *sym_label; /* direct pointer to label */
 335     struct Sym *sym_struct; /* direct pointer to structure */
 336     struct Sym *sym_identifier; /* direct pointer to identifier */
 337     int tok; /* token number */
 338     int len;
 339     char str[1];
 340 } TokenSym;
 341
 342 #ifdef TCC_TARGET_PE
 343 typedef unsigned short nwchar_t;
 344 #else
 345 typedef int nwchar_t;
 346 #endif
 347
 348 typedef struct CString {
 349     int size; /* size in bytes */
 350     void *data; /* either 'char *' or 'nwchar_t *' */
 351     int size_allocated;
 352 } CString;
 353
 354 /* type definition */
 355 typedef struct CType {
 356     int t;
 357     struct Sym *ref;
 358 } CType;
 359
 360 /* constant value */
 361 typedef union CValue {
 362     long double ld;
 363     double d;
 364     float f;
 365     uint64_t i;
 366     struct {
 367         int size;
 368         const void *data;
 369     } str;
 370     int tab[LDOUBLE_SIZE/4];
 371 } CValue;
 372
 373 /* value on stack */
 374 typedef struct SValue {
 375     CType type;      /* type */
 376     unsigned short r;      /* register + flags */
 377     unsigned short r2;     /* second register, used for 'long long'
 378                               type. If not used, set to VT_CONST */
 379     CValue c;              /* constant, if VT_CONST */
 380     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 381 } SValue;
 382
 383 struct Attribute {
 384     unsigned
 385         func_call     : 3, /* calling convention (0..5), see below */
 386         aligned       : 5, /* alignement (0..16) */
 387         packed        : 1,
 388         func_export   : 1,
 389         func_import   : 1,
 390         func_args     : 5,
 391         func_proto    : 1,
 392         mode          : 4,
 393         weak          : 1,
 394         visibility    : 2,
 395         fill          : 8; // 8 bits left to fit well in union below
 396 };
 397
 398 /* GNUC attribute definition */
 399 typedef struct AttributeDef {
 400     struct Attribute a;
 401     struct Section *section;
 402     int alias_target;    /* token */
 403     int asm_label;    /* associated asm label */
 404 } AttributeDef;
 405
 406 /* symbol management */
 407 typedef struct Sym {
 408     int v;    /* symbol token */
 409     union {
 410         int asm_label;    /* associated asm label */
 411         int scope;  /* scope level for locals */
 412     };
 413     union {
 414         long r;    /* associated register */
 415         struct Attribute a;
 416     };
 417     union {
 418         long c;    /* associated number */
 419         int *d;   /* define token stream */
 420     };
 421     CType type;    /* associated type */
 422     union {
 423         struct Sym *next; /* next related symbol */
 424         long jnext; /* next jump label */
 425     };
 426     struct Sym *prev; /* prev symbol in stack */
 427     struct Sym *prev_tok; /* previous symbol for this token */
 428 } Sym;
 429
 430 /* section definition */
 431 /* XXX: use directly ELF structure for parameters ? */
 432 /* special flag to indicate that the section should not be linked to
 433    the other ones */
 434 #define SHF_PRIVATE 0x80000000
 435
 436 /* special flag, too */
 437 #define SECTION_ABS ((void *)1)
 438
 439 typedef struct Section {
 440     unsigned long data_offset; /* current data offset */
 441     unsigned char *data;       /* section data */
 442     unsigned long data_allocated; /* used for realloc() handling */
 443     int sh_name;             /* elf section name (only used during output) */
 444     int sh_num;              /* elf section number */
 445     int sh_type;             /* elf section type */
 446     int sh_flags;            /* elf section flags */
 447     int sh_info;             /* elf section info */
 448     int sh_addralign;        /* elf section alignment */
 449     int sh_entsize;          /* elf entry size */
 450     unsigned long sh_size;   /* section size (only used during output) */
 451     addr_t sh_addr;          /* address at which the section is relocated */
 452     unsigned long sh_offset; /* file offset */
 453     int nb_hashed_syms;      /* used to resize the hash table */
 454     struct Section *link;    /* link to another section */
 455     struct Section *reloc;   /* corresponding section for relocation, if any */
 456     struct Section *hash;     /* hash table for symbols */
 457     struct Section *next;
 458     char name[1];           /* section name */
 459 } Section;
 460
 461 typedef struct DLLReference {
 462     int level;
 463     void *handle;
 464     char name[1];
 465 } DLLReference;
 466
 467 /* -------------------------------------------------- */
 468
 469 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 470 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 471 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 472
 473 /* stored in 'Sym.c' field */
 474 #define FUNC_NEW       1 /* ansi function prototype */
 475 #define FUNC_OLD       2 /* old function prototype */
 476 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 477
 478 /* stored in 'Sym.r' field */
 479 #define FUNC_CDECL     0 /* standard c call */
 480 #define FUNC_STDCALL   1 /* pascal c call */
 481 #define FUNC_FASTCALL1 2 /* first param in %eax */
 482 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 483 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 484 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 485
 486 /* field 'Sym.t' for macros */
 487 #define MACRO_OBJ      0 /* object like macro */
 488 #define MACRO_FUNC     1 /* function like macro */
 489
 490 /* field 'Sym.r' for C labels */
 491 #define LABEL_DEFINED  0 /* label is defined */
 492 #define LABEL_FORWARD  1 /* label is forward defined */
 493 #define LABEL_DECLARED 2 /* label is declared but never used */
 494
 495 /* type_decl() types */
 496 #define TYPE_ABSTRACT  1 /* type without variable */
 497 #define TYPE_DIRECT    2 /* type with variable */
 498
 499 #define IO_BUF_SIZE 8192
 500
 501 typedef struct BufferedFile {
 502     uint8_t *buf_ptr;
 503     uint8_t *buf_end;
 504     int fd;
 505     struct BufferedFile *prev;
 506     int line_num;    /* current line number - here to simplify code */
 507     int line_ref;    /* tcc -E: last printed line */
 508     int ifndef_macro;  /* #ifndef macro / #endif search */
 509     int ifndef_macro_saved; /* saved ifndef_macro */
 510     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 511     int include_next_index; /* next search path */
 512     char filename[1024];    /* filename */
 513     unsigned char unget[4];
 514     unsigned char buffer[1]; /* extra size for CH_EOB char */
 515 } BufferedFile;
 516
 517 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 518 #define CH_EOF   (-1)   /* end of file */
 519
 520 /* parsing state (used to save parser state to reparse part of the
 521    source several times) */
 522 typedef struct ParseState {
 523     const int *macro_ptr;
 524     int line_num;
 525     int tok;
 526     CValue tokc;
 527 } ParseState;
 528
 529 /* used to record tokens */
 530 typedef struct TokenString {
 531     int *str;
 532     int len;
 533     int allocated_len;
 534     int last_line_num;
 535     /* used to chain token-strings with begin/end_macro() */
 536     struct TokenString *prev;
 537     const int *prev_ptr;
 538     char alloc;
 539 } TokenString;
 540
 541 /* inline functions */
 542 typedef struct InlineFunc {
 543     TokenString func_str;
 544     Sym *sym;
 545     char filename[1];
 546 } InlineFunc;
 547
 548 /* include file cache, used to find files faster and also to eliminate
 549    inclusion if the include file is protected by #ifndef ... #endif */
 550 typedef struct CachedInclude {
 551     int ifndef_macro;
 552     int once;
 553     int hash_next; /* -1 if none */
 554     char filename[1]; /* path specified in #include */
 555 } CachedInclude;
 556
 557 #define CACHED_INCLUDES_HASH_SIZE 32
 558
 559 #ifdef CONFIG_TCC_ASM
 560 typedef struct ExprValue {
 561     uint64_t v;
 562     Sym *sym;
 563 } ExprValue;
 564
 565 #define MAX_ASM_OPERANDS 30
 566 typedef struct ASMOperand {
 567     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 568     char *constraint;
 569     char asm_str[16]; /* computed asm string for operand */
 570     SValue *vt; /* C value of the expression */
 571     int ref_index; /* if >= 0, gives reference to a output constraint */
 572     int input_index; /* if >= 0, gives reference to an input constraint */
 573     int priority; /* priority, used to assign registers */
 574     int reg; /* if >= 0, register number used for this operand */
 575     int is_llong; /* true if double register value */
 576     int is_memory; /* true if memory operand */
 577     int is_rw;     /* for '+' modifier */
 578 } ASMOperand;
 579 #endif
 580
 581 struct sym_attr {
 582     unsigned long got_offset;
 583     unsigned long plt_offset;
 584 #ifdef TCC_TARGET_ARM
 585     unsigned char plt_thumb_stub:1;
 586 #endif
 587 };
 588
 589 struct TCCState {
 590
 591     int verbose; /* if true, display some information during compilation */
 592     int nostdinc; /* if true, no standard headers are added */
 593     int nostdlib; /* if true, no standard libraries are added */
 594     int nocommon; /* if true, do not use common symbols for .bss data */
 595     int static_link; /* if true, static linking is performed */
 596     int rdynamic; /* if true, all symbols are exported */
 597     int symbolic; /* if true, resolve symbols in the current module first */
 598     int alacarte_link; /* if true, only link in referenced objects from archive */
 599
 600     char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
 601     char *soname; /* as specified on the command line (-soname) */
 602     char *rpath; /* as specified on the command line (-Wl,-rpath=) */
 603
 604     /* output type, see TCC_OUTPUT_XXX */
 605     int output_type;
 606     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 607     int output_format;
 608
 609     /* C language options */
 610     int char_is_unsigned;
 611     int leading_underscore;
 612     int ms_extensions;          /* allow nested named struct w/o identifier behave like unnamed */
 613     int old_struct_init_code;   /* use old algorithm to init array in struct when there is no '{' used.
 614                                    Liuux 2.4.26 can't find initrd when compiled with a new algorithm */
 615     int dollars_in_identifiers; /* allows '$' char in indentifiers */
 616
 617     /* warning switches */
 618     int warn_write_strings;
 619     int warn_unsupported;
 620     int warn_error;
 621     int warn_none;
 622     int warn_implicit_function_declaration;
 623
 624     /* compile with debug symbol (and use them if error during execution) */
 625     int do_debug;
 626 #ifdef CONFIG_TCC_BCHECK
 627     /* compile with built-in memory and bounds checker */
 628     int do_bounds_check;
 629 #endif
 630 #ifdef TCC_TARGET_ARM
 631     enum float_abi float_abi; /* float ABI of the generated code*/
 632 #endif
 633
 634     addr_t text_addr; /* address of text section */
 635     int has_text_addr;
 636
 637     unsigned long section_align; /* section alignment */
 638
 639     char *init_symbol; /* symbols to call at load-time (not used currently) */
 640     char *fini_symbol; /* symbols to call at unload-time (not used currently) */
 641
 642 #ifdef TCC_TARGET_I386
 643     int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
 644 #endif
 645
 646     /* array of all loaded dlls (including those referenced by loaded dlls) */
 647     DLLReference **loaded_dlls;
 648     int nb_loaded_dlls;
 649
 650     /* include paths */
 651     char **include_paths;
 652     int nb_include_paths;
 653
 654     char **sysinclude_paths;
 655     int nb_sysinclude_paths;
 656
 657     /* library paths */
 658     char **library_paths;
 659     int nb_library_paths;
 660
 661     /* crt?.o object path */
 662     char **crt_paths;
 663     int nb_crt_paths;
 664
 665     /* error handling */
 666     void *error_opaque;
 667     void (*error_func)(void *opaque, const char *msg);
 668     int error_set_jmp_enabled;
 669     jmp_buf error_jmp_buf;
 670     int nb_errors;
 671
 672     /* output file for preprocessing (-E) */
 673     FILE *ppfp;
 674     enum {
 675         LINE_MACRO_OUTPUT_FORMAT_GCC,
 676         LINE_MACRO_OUTPUT_FORMAT_NONE,
 677         LINE_MACRO_OUTPUT_FORMAT_STD
 678     } Pflag; /* -P switch */
 679     char dflag; /* -dX value */
 680
 681     /* for -MD/-MF: collected dependencies for this compilation */
 682     char **target_deps;
 683     int nb_target_deps;
 684
 685     /* compilation */
 686     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 687     BufferedFile **include_stack_ptr;
 688
 689     int ifdef_stack[IFDEF_STACK_SIZE];
 690     int *ifdef_stack_ptr;
 691
 692     /* included files enclosed with #ifndef MACRO */
 693     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 694     CachedInclude **cached_includes;
 695     int nb_cached_includes;
 696
 697     /* #pragma pack stack */
 698     int pack_stack[PACK_STACK_SIZE];
 699     int *pack_stack_ptr;
 700     char **pragma_libs;
 701     int nb_pragma_libs;
 702
 703     /* inline functions are stored as token lists and compiled last
 704        only if referenced */
 705     struct InlineFunc **inline_fns;
 706     int nb_inline_fns;
 707
 708     /* sections */
 709     Section **sections;
 710     int nb_sections; /* number of sections, including first dummy section */
 711
 712     Section **priv_sections;
 713     int nb_priv_sections; /* number of private sections */
 714
 715     /* got & plt handling */
 716     Section *got;
 717     Section *plt;
 718     struct sym_attr *sym_attrs;
 719     int nb_sym_attrs;
 720     /* give the correspondance from symtab indexes to dynsym indexes */
 721     int *symtab_to_dynsym;
 722
 723     /* temporary dynamic symbol sections (for dll loading) */
 724     Section *dynsymtab_section;
 725     /* exported dynamic symbol section */
 726     Section *dynsym;
 727     /* copy of the gobal symtab_section variable */
 728     Section *symtab;
 729     /* tiny assembler state */
 730     Sym *asm_labels;
 731
 732 #ifdef TCC_TARGET_PE
 733     /* PE info */
 734     int pe_subsystem;
 735     unsigned pe_file_align;
 736     unsigned pe_stack_size;
 737 # ifdef TCC_TARGET_X86_64
 738     Section *uw_pdata;
 739     int uw_sym;
 740     unsigned uw_offs;
 741 # endif
 742 #endif
 743
 744 #ifdef TCC_IS_NATIVE
 745     const char *runtime_main;
 746     /* for tcc_relocate */
 747     void *runtime_mem;
 748 # ifdef HAVE_SELINUX
 749     void *write_mem;
 750     unsigned long mem_size;
 751 # endif
 752 #endif
 753
 754     /* used by main and tcc_parse_args only */
 755     struct filespec **files; /* files seen on command line */
 756     int nb_files; /* number thereof */
 757     int nb_libraries; /* number of libs thereof */
 758     int filetype;
 759     char *outfile; /* output filename */
 760     char *option_m; /* only -m32/-m64 handled */
 761     int print_search_dirs; /* option */
 762     int option_r; /* option -r */
 763     int do_bench; /* option -bench */
 764     int gen_deps; /* option -MD  */
 765     char *deps_outfile; /* option -MF */
 766     int option_pthread; /* -pthread option */
 767 };
 768
 769 struct filespec {
 770     char type, name[1];
 771 };
 772
 773 /* The current value can be: */
 774 #define VT_VALMASK   0x003f  /* mask for value location, register or: */
 775 #define VT_CONST     0x0030  /* constant in vc (must be first non register value) */
 776 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 777 #define VT_LOCAL     0x0032  /* offset on stack */
 778 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 779 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 780 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 781 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 782 #define VT_LVAL      0x0100  /* var is an lvalue */
 783 #define VT_SYM       0x0200  /* a symbol value is added */
 784 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 785                                 char/short stored in integer registers) */
 786 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 787                                 dereferencing value */
 788 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 789                                 bounding function call point is in vc */
 790 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 791 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 792 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 793 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 794
 795 /* types */
 796 #define VT_BTYPE       0x000f  /* mask for basic type */
 797 #define VT_INT              0  /* integer type */
 798 #define VT_BYTE             1  /* signed byte type */
 799 #define VT_SHORT            2  /* short type */
 800 #define VT_VOID             3  /* void type */
 801 #define VT_PTR              4  /* pointer */
 802 #define VT_ENUM             5  /* enum definition */
 803 #define VT_FUNC             6  /* function type */
 804 #define VT_STRUCT           7  /* struct/union definition */
 805 #define VT_FLOAT            8  /* IEEE float */
 806 #define VT_DOUBLE           9  /* IEEE double */
 807 #define VT_LDOUBLE         10  /* IEEE long double */
 808 #define VT_BOOL            11  /* ISOC99 boolean type */
 809 #define VT_LLONG           12  /* 64 bit integer */
 810 #define VT_LONG            13  /* long integer (NEVER USED as type, only
 811                                   during parsing) */
 812 #define VT_QLONG           14  /* 128-bit integer. Only used for x86-64 ABI */
 813 #define VT_QFLOAT          15  /* 128-bit float. Only used for x86-64 ABI */
 814 #define VT_UNSIGNED    0x0010  /* unsigned type */
 815 #define VT_ARRAY       0x0020  /* array type (also has VT_PTR) */
 816 #define VT_BITFIELD    0x0040  /* bitfield modifier */
 817 #define VT_CONSTANT    0x0800  /* const modifier */
 818 #define VT_VOLATILE    0x1000  /* volatile modifier */
 819 #define VT_DEFSIGN     0x2000  /* signed type */
 820 #define VT_VLA     0x00020000  /* VLA type (also has VT_PTR and VT_ARRAY) */
 821
 822 /* storage */
 823 #define VT_EXTERN  0x00000080  /* extern definition */
 824 #define VT_STATIC  0x00000100  /* static variable */
 825 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 826 #define VT_INLINE  0x00000400  /* inline definition */
 827 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 828 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 829 #define VT_WEAK    0x00010000  /* weak symbol */
 830 #define VT_TLS     0x00040000  /* thread-local storage */
 831 #define VT_VIS_SHIFT    19     /* shift for symbol visibility, overlapping
 832                                   bitfield values, because bitfields never
 833                                   have linkage and hence never have
 834                                   visibility.  */
 835 #define VT_VIS_SIZE      2     /* We have four visibilities.  */
 836 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
 837
 838 #define VT_STRUCT_SHIFT 19     /* shift for bitfield shift values (max: 32 - 2*6) */
 839
 840
 841 /* type mask (except storage) */
 842 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
 843 #define VT_TYPE (~(VT_STORAGE))
 844
 845 /* token values */
 846
 847 /* warning: the following compare tokens depend on i386 asm code */
 848 #define TOK_ULT 0x92
 849 #define TOK_UGE 0x93
 850 #define TOK_EQ  0x94
 851 #define TOK_NE  0x95
 852 #define TOK_ULE 0x96
 853 #define TOK_UGT 0x97
 854 #define TOK_Nset 0x98
 855 #define TOK_Nclear 0x99
 856 #define TOK_LT  0x9c
 857 #define TOK_GE  0x9d
 858 #define TOK_LE  0x9e
 859 #define TOK_GT  0x9f
 860
 861 #define TOK_LAND  0xa0
 862 #define TOK_LOR   0xa1
 863 #define TOK_DEC   0xa2
 864 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 865 #define TOK_INC   0xa4
 866 #define TOK_UDIV  0xb0 /* unsigned division */
 867 #define TOK_UMOD  0xb1 /* unsigned modulo */
 868 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 869
 870 /* tokens that carry values (in additional token string space / tokc) --> */
 871 #define TOK_CCHAR   0xb3 /* char constant in tokc */
 872 #define TOK_LCHAR   0xb4
 873 #define TOK_CINT    0xb5 /* number in tokc */
 874 #define TOK_CUINT   0xb6 /* unsigned int constant */
 875 #define TOK_CLLONG  0xb7 /* long long constant */
 876 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
 877 #define TOK_STR     0xb9 /* pointer to string in tokc */
 878 #define TOK_LSTR    0xba
 879 #define TOK_CFLOAT  0xbb /* float constant */
 880 #define TOK_CDOUBLE 0xbc /* double constant */
 881 #define TOK_CLDOUBLE 0xbd /* long double constant */
 882 #define TOK_PPNUM   0xbe /* preprocessor number */
 883 #define TOK_PPSTR   0xbf /* preprocessor string */
 884 #define TOK_LINENUM 0xc0 /* line number info */
 885 /* <-- */
 886
 887 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 888 #define TOK_ADDC1    0xc3 /* add with carry generation */
 889 #define TOK_ADDC2    0xc4 /* add with carry use */
 890 #define TOK_SUBC1    0xc5 /* add with carry generation */
 891 #define TOK_SUBC2    0xc6 /* add with carry use */
 892 #define TOK_ARROW    0xc7
 893 #define TOK_DOTS     0xc8 /* three dots */
 894 #define TOK_SHR      0xc9 /* unsigned shift right */
 895 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
 896 #define TOK_PLCHLDR  0xcb /* placeholder token as defined in C99 */
 897 #define TOK_NOSUBST  0xcc /* means following token has already been pp'd */
 898
 899 #define TOK_SHL   0x01 /* shift left */
 900 #define TOK_SAR   0x02 /* signed shift right */
 901
 902 /* assignement operators : normal operator or 0x80 */
 903 #define TOK_A_MOD 0xa5
 904 #define TOK_A_AND 0xa6
 905 #define TOK_A_MUL 0xaa
 906 #define TOK_A_ADD 0xab
 907 #define TOK_A_SUB 0xad
 908 #define TOK_A_DIV 0xaf
 909 #define TOK_A_XOR 0xde
 910 #define TOK_A_OR  0xfc
 911 #define TOK_A_SHL 0x81
 912 #define TOK_A_SAR 0x82
 913
 914 #ifndef offsetof
 915 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 916 #endif
 917
 918 #ifndef countof
 919 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 920 #endif
 921
 922 #define TOK_EOF       (-1)  /* end of file */
 923 #define TOK_LINEFEED  10    /* line feed */
 924
 925 /* all identificators and strings have token above that */
 926 #define TOK_IDENT 256
 927
 928 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 929 #define TOK_ASM_int TOK_INT
 930 #define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
 931 #define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
 932 #define TOK_ASMDIR_LAST TOK_ASMDIR_section
 933
 934 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 935 /* only used for i386 asm opcodes definitions */
 936 #define DEF_BWL(x) \
 937  DEF(TOK_ASM_ ## x ## b, #x "b") \
 938  DEF(TOK_ASM_ ## x ## w, #x "w") \
 939  DEF(TOK_ASM_ ## x ## l, #x "l") \
 940  DEF(TOK_ASM_ ## x, #x)
 941 #define DEF_WL(x) \
 942  DEF(TOK_ASM_ ## x ## w, #x "w") \
 943  DEF(TOK_ASM_ ## x ## l, #x "l") \
 944  DEF(TOK_ASM_ ## x, #x)
 945 #ifdef TCC_TARGET_X86_64
 946 # define DEF_BWLQ(x) \
 947  DEF(TOK_ASM_ ## x ## b, #x "b") \
 948  DEF(TOK_ASM_ ## x ## w, #x "w") \
 949  DEF(TOK_ASM_ ## x ## l, #x "l") \
 950  DEF(TOK_ASM_ ## x ## q, #x "q") \
 951  DEF(TOK_ASM_ ## x, #x)
 952 # define DEF_WLQ(x) \
 953  DEF(TOK_ASM_ ## x ## w, #x "w") \
 954  DEF(TOK_ASM_ ## x ## l, #x "l") \
 955  DEF(TOK_ASM_ ## x ## q, #x "q") \
 956  DEF(TOK_ASM_ ## x, #x)
 957 # define DEF_BWLX DEF_BWLQ
 958 # define DEF_WLX DEF_WLQ
 959 /* number of sizes + 1 */
 960 # define NBWLX 5
 961 #else
 962 # define DEF_BWLX DEF_BWL
 963 # define DEF_WLX DEF_WL
 964 /* number of sizes + 1 */
 965 # define NBWLX 4
 966 #endif
 967
 968 #define DEF_FP1(x) \
 969  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 970  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 971  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 972  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 973
 974 #define DEF_FP(x) \
 975  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 976  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 977  DEF_FP1(x)
 978
 979 #define DEF_ASMTEST(x,suffix) \
 980  DEF_ASM(x ## o ## suffix) \
 981  DEF_ASM(x ## no ## suffix) \
 982  DEF_ASM(x ## b ## suffix) \
 983  DEF_ASM(x ## c ## suffix) \
 984  DEF_ASM(x ## nae ## suffix) \
 985  DEF_ASM(x ## nb ## suffix) \
 986  DEF_ASM(x ## nc ## suffix) \
 987  DEF_ASM(x ## ae ## suffix) \
 988  DEF_ASM(x ## e ## suffix) \
 989  DEF_ASM(x ## z ## suffix) \
 990  DEF_ASM(x ## ne ## suffix) \
 991  DEF_ASM(x ## nz ## suffix) \
 992  DEF_ASM(x ## be ## suffix) \
 993  DEF_ASM(x ## na ## suffix) \
 994  DEF_ASM(x ## nbe ## suffix) \
 995  DEF_ASM(x ## a ## suffix) \
 996  DEF_ASM(x ## s ## suffix) \
 997  DEF_ASM(x ## ns ## suffix) \
 998  DEF_ASM(x ## p ## suffix) \
 999  DEF_ASM(x ## pe ## suffix) \
1000  DEF_ASM(x ## np ## suffix) \
1001  DEF_ASM(x ## po ## suffix) \
1002  DEF_ASM(x ## l ## suffix) \
1003  DEF_ASM(x ## nge ## suffix) \
1004  DEF_ASM(x ## nl ## suffix) \
1005  DEF_ASM(x ## ge ## suffix) \
1006  DEF_ASM(x ## le ## suffix) \
1007  DEF_ASM(x ## ng ## suffix) \
1008  DEF_ASM(x ## nle ## suffix) \
1009  DEF_ASM(x ## g ## suffix)
1010
1011 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1012
1013 enum tcc_token {
1014     TOK_LAST = TOK_IDENT - 1
1015 #define DEF(id, str) ,id
1016 #include "tcctok.h"
1017 #undef DEF
1018 };
1019
1020 /* keywords: tok >= TOK_IDENT && tok < TOK_UIDENT */
1021 #define TOK_UIDENT TOK_DEFINE
1022
1023 /* -------------------------------------------- */
1024
1025 #ifndef PUB_FUNC /* functions used by tcc.c but not in libtcc.h */
1026 # define PUB_FUNC
1027 #endif
1028
1029 #ifdef ONE_SOURCE
1030 #define ST_INLN static inline
1031 #define ST_FUNC static
1032 #define ST_DATA static
1033 #else
1034 #define ST_INLN
1035 #define ST_FUNC
1036 #define ST_DATA extern
1037 #endif
1038
1039 #ifdef TCC_PROFILE /* profile all functions */
1040 # define static
1041 #endif
1042
1043 /* ------------ libtcc.c ------------ */
1044
1045 /* use GNU C extensions */
1046 ST_DATA int gnu_ext;
1047 /* use Tiny C extensions */
1048 ST_DATA int tcc_ext;
1049 /* XXX: get rid of this ASAP */
1050 ST_DATA struct TCCState *tcc_state;
1051
1052 /* public functions currently used by the tcc main function */
1053 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1054 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1055 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1056 PUB_FUNC char *tcc_basename(const char *name);
1057 PUB_FUNC char *tcc_fileextension (const char *name);
1058
1059 #ifndef MEM_DEBUG
1060 PUB_FUNC void tcc_free(void *ptr);
1061 PUB_FUNC void *tcc_malloc(unsigned long size);
1062 PUB_FUNC void *tcc_mallocz(unsigned long size);
1063 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1064 PUB_FUNC char *tcc_strdup(const char *str);
1065 #else
1066 #define tcc_free(ptr)           tcc_free_debug(ptr)
1067 #define tcc_malloc(size)        tcc_malloc_debug(size, __FILE__, __LINE__)
1068 #define tcc_mallocz(size)       tcc_mallocz_debug(size, __FILE__, __LINE__)
1069 #define tcc_realloc(ptr,size)   tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1070 #define tcc_strdup(str)         tcc_strdup_debug(str, __FILE__, __LINE__)
1071 PUB_FUNC void tcc_free_debug(void *ptr);
1072 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1073 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1074 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1075 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1076 #endif
1077
1078 #define free(p) use_tcc_free(p)
1079 #define malloc(s) use_tcc_malloc(s)
1080 #define realloc(p, s) use_tcc_realloc(p, s)
1081 #undef strdup
1082 #define strdup(s) use_tcc_strdup(s)
1083 PUB_FUNC void tcc_memstats(int bench);
1084 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1085 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1086 PUB_FUNC void tcc_warning(const char *fmt, ...);
1087
1088 /* other utilities */
1089 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1090 ST_FUNC void dynarray_reset(void *pp, int *n);
1091 ST_INLN void cstr_ccat(CString *cstr, int ch);
1092 ST_FUNC void cstr_cat(CString *cstr, const char *str, int len);
1093 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1094 ST_FUNC void cstr_new(CString *cstr);
1095 ST_FUNC void cstr_free(CString *cstr);
1096 ST_FUNC void cstr_reset(CString *cstr);
1097
1098 ST_INLN void sym_free(Sym *sym);
1099 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1100 ST_FUNC Sym *sym_find2(Sym *s, int v);
1101 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1102 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1103 ST_INLN Sym *struct_find(int v);
1104 ST_INLN Sym *sym_find(int v);
1105 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1106
1107 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1108 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1109 ST_FUNC void tcc_close(void);
1110
1111 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1112 /* flags: */
1113 #define AFF_PRINT_ERROR     0x10 /* print error if file not found */
1114 #define AFF_REFERENCED_DLL  0x20 /* load a referenced dll from another dll */
1115 #define AFF_PREPROCESS      0x40 /* preprocess file */
1116 /* combined with: */
1117 #define AFF_TYPE_NONE   0
1118 #define AFF_TYPE_C      1
1119 #define AFF_TYPE_ASM    2
1120 #define AFF_TYPE_ASMPP  3
1121 #define AFF_TYPE_BIN    4
1122 #define AFF_TYPE_LIB    5
1123 #define AFF_TYPE_LIBWH  6
1124 /* values from tcc_object_type(...) */
1125 #define AFF_BINTYPE_REL 1
1126 #define AFF_BINTYPE_DYN 2
1127 #define AFF_BINTYPE_AR  3
1128 #define AFF_BINTYPE_C67 4
1129
1130
1131 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1132
1133 #ifndef TCC_TARGET_PE
1134 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1135 #endif
1136
1137 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1138 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1139
1140 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1141 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1142 PUB_FUNC void tcc_set_environment(TCCState *s);
1143 #ifdef _WIN32
1144 ST_FUNC char *normalize_slashes(char *path);
1145 #endif
1146
1147 /* ------------ tccpp.c ------------ */
1148
1149 ST_DATA struct BufferedFile *file;
1150 ST_DATA int ch, tok;
1151 ST_DATA CValue tokc;
1152 ST_DATA const int *macro_ptr;
1153 ST_DATA int parse_flags;
1154 ST_DATA int tok_flags;
1155 ST_DATA CString tokcstr; /* current parsed string, if any */
1156
1157 /* display benchmark infos */
1158 ST_DATA int total_lines;
1159 ST_DATA int total_bytes;
1160 ST_DATA int tok_ident;
1161 ST_DATA TokenSym **table_ident;
1162
1163 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1164 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1165 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1166 #define TOK_FLAG_EOF   0x0008 /* end of file */
1167
1168 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1169 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1170 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1171                                         token. line feed is also
1172                                         returned at eof */
1173 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1174 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1175 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1176 #define PARSE_FLAG_TOK_STR    0x0040 /* return parsed strings instead of TOK_PPSTR */
1177
1178 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1179 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1180 ST_FUNC void begin_macro(TokenString *str, int alloc);
1181 ST_FUNC void end_macro(void);
1182 ST_FUNC void save_parse_state(ParseState *s);
1183 ST_FUNC void restore_parse_state(ParseState *s);
1184 ST_INLN void tok_str_new(TokenString *s);
1185 ST_FUNC TokenString *tok_str_alloc(void);
1186 ST_FUNC void tok_str_free(int *str);
1187 ST_FUNC void tok_str_add(TokenString *s, int t);
1188 ST_FUNC void tok_str_add_tok(TokenString *s);
1189 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1190 ST_FUNC void define_undef(Sym *s);
1191 ST_INLN Sym *define_find(int v);
1192 ST_FUNC void free_defines(Sym *b);
1193 ST_FUNC Sym *label_find(int v);
1194 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1195 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1196 ST_FUNC void parse_define(void);
1197 ST_FUNC void preprocess(int is_bof);
1198 ST_FUNC void next_nomacro(void);
1199 ST_FUNC void next(void);
1200 ST_INLN void unget_tok(int last_tok);
1201 ST_FUNC void preprocess_init(TCCState *s1);
1202 ST_FUNC void preprocess_new(void);
1203 ST_FUNC void preprocess_delete(void);
1204 ST_FUNC int tcc_preprocess(TCCState *s1);
1205 ST_FUNC void skip(int c);
1206 ST_FUNC NORETURN void expect(const char *msg);
1207
1208 /* space exlcuding newline */
1209 static inline int is_space(int ch) {
1210     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1211 }
1212 static inline int isid(int c) {
1213     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1214 }
1215 static inline int isnum(int c) {
1216     return c >= '0' && c <= '9';
1217 }
1218 static inline int isoct(int c) {
1219     return c >= '0' && c <= '7';
1220 }
1221 static inline int toup(int c) {
1222     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1223 }
1224
1225 /* ------------ tccgen.c ------------ */
1226
1227 #define SYM_POOL_NB (8192 / sizeof(Sym))
1228 ST_DATA Sym *sym_free_first;
1229 ST_DATA void **sym_pools;
1230 ST_DATA int nb_sym_pools;
1231
1232 ST_DATA Sym *global_stack;
1233 ST_DATA Sym *local_stack;
1234 ST_DATA Sym *local_label_stack;
1235 ST_DATA Sym *global_label_stack;
1236 ST_DATA Sym *define_stack;
1237 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1238 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop;
1239 #define vstack  (__vstack + 1)
1240 ST_DATA int rsym, anon_sym, ind, loc;
1241
1242 ST_DATA int const_wanted; /* true if constant wanted */
1243 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1244 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1245 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1246 ST_DATA int func_var; /* true if current function is variadic */
1247 ST_DATA int func_vc;
1248 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1249 ST_DATA const char *funcname;
1250
1251 ST_FUNC void tccgen_start(TCCState *s1);
1252 ST_FUNC void tccgen_end(TCCState *s1);
1253
1254 ST_FUNC void check_vstack(void);
1255 ST_INLN int is_float(int t);
1256 ST_FUNC int ieee_finite(double d);
1257 ST_FUNC void test_lvalue(void);
1258 ST_FUNC void swap(int *p, int *q);
1259 ST_FUNC void vpushi(int v);
1260 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1261 ST_FUNC void vset(CType *type, int r, int v);
1262 ST_FUNC void vswap(void);
1263 ST_FUNC void vpush_global_sym(CType *type, int v);
1264 ST_FUNC void vrote(SValue *e, int n);
1265 ST_FUNC void vrott(int n);
1266 ST_FUNC void vrotb(int n);
1267 #ifdef TCC_TARGET_ARM
1268 ST_FUNC int get_reg_ex(int rc, int rc2);
1269 ST_FUNC void lexpand_nr(void);
1270 #endif
1271 ST_FUNC void vpushv(SValue *v);
1272 ST_FUNC void save_reg(int r);
1273 ST_FUNC void save_reg_upstack(int r, int n);
1274 ST_FUNC int get_reg(int rc);
1275 ST_FUNC void save_regs(int n);
1276 ST_FUNC void gaddrof(void);
1277 ST_FUNC int gv(int rc);
1278 ST_FUNC void gv2(int rc1, int rc2);
1279 ST_FUNC void vpop(void);
1280 ST_FUNC void gen_op(int op);
1281 ST_FUNC int type_size(CType *type, int *a);
1282 ST_FUNC void mk_pointer(CType *type);
1283 ST_FUNC void vstore(void);
1284 ST_FUNC void inc(int post, int c);
1285 ST_FUNC void parse_asm_str(CString *astr);
1286 ST_FUNC int lvalue_type(int t);
1287 ST_FUNC void indir(void);
1288 ST_FUNC void unary(void);
1289 ST_FUNC void expr_prod(void);
1290 ST_FUNC void expr_sum(void);
1291 ST_FUNC void gexpr(void);
1292 ST_FUNC int expr_const(void);
1293 ST_FUNC void gen_inline_functions(void);
1294 ST_FUNC void decl(int l);
1295 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1296 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1297 #endif
1298 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1299 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1300 #endif
1301
1302 /* ------------ tccelf.c ------------ */
1303
1304 #define TCC_OUTPUT_FORMAT_ELF    0 /* default output format: ELF */
1305 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1306 #define TCC_OUTPUT_FORMAT_COFF   2 /* COFF */
1307
1308 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1309
1310 typedef struct {
1311     unsigned int n_strx;         /* index into string table of name */
1312     unsigned char n_type;         /* type of symbol */
1313     unsigned char n_other;        /* misc info (usually empty) */
1314     unsigned short n_desc;        /* description field */
1315     unsigned int n_value;        /* value of symbol */
1316 } Stab_Sym;
1317
1318 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1319 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1320 #ifdef CONFIG_TCC_ASM
1321 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1322 #endif
1323 #ifdef CONFIG_TCC_BCHECK
1324 /* bound check related sections */
1325 ST_DATA Section *bounds_section; /* contains global data bound description */
1326 ST_DATA Section *lbounds_section; /* contains local data bound description */
1327 #endif
1328 /* symbol sections */
1329 ST_DATA Section *symtab_section, *strtab_section;
1330 /* debug sections */
1331 ST_DATA Section *stab_section, *stabstr_section;
1332
1333 ST_FUNC void tccelf_new(TCCState *s);
1334 ST_FUNC void tccelf_delete(TCCState *s);
1335 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1336 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1337 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1338 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1339 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1340 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);
1341
1342 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1343 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1344 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1345 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1346
1347 ST_FUNC int put_elf_str(Section *s, const char *sym);
1348 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1349 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1350 ST_FUNC int find_elf_sym(Section *s, const char *name);
1351 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1352 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1353
1354 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1355 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1356 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1357 ST_FUNC void put_stabd(int type, int other, int desc);
1358
1359 ST_FUNC void relocate_common_syms(void);
1360 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1361 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1362 ST_FUNC void relocate_plt(TCCState *s1);
1363
1364 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1365 ST_FUNC int tcc_object_type(int fd, ElfW(Ehdr) *h);
1366 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1367 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1368 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1369
1370 ST_FUNC void build_got_entries(TCCState *s1);
1371 ST_FUNC void tcc_add_runtime(TCCState *s1);
1372
1373 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1374 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1375 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1376 #endif
1377
1378 #ifndef TCC_TARGET_PE
1379 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1380 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1381 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1382 ST_FUNC void minp(void);
1383 ST_INLN void inp(void);
1384 ST_FUNC int handle_eob(void);
1385 #endif
1386
1387 /* ------------ xxx-gen.c ------------ */
1388
1389 ST_DATA const int reg_classes[NB_REGS];
1390
1391 ST_FUNC void gsym_addr(int t, int a);
1392 ST_FUNC void gsym(int t);
1393 ST_FUNC void load(int r, SValue *sv);
1394 ST_FUNC void store(int r, SValue *v);
1395 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1396 ST_FUNC void gfunc_call(int nb_args);
1397 ST_FUNC void gfunc_prolog(CType *func_type);
1398 ST_FUNC void gfunc_epilog(void);
1399 ST_FUNC int gjmp(int t);
1400 ST_FUNC void gjmp_addr(int a);
1401 ST_FUNC int gtst(int inv, int t);
1402 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1403 ST_FUNC void gtst_addr(int inv, int a);
1404 #else
1405 #define gtst_addr(inv, a) gsym_addr(gtst(inv, 0), a)
1406 #endif
1407 ST_FUNC void gen_opi(int op);
1408 ST_FUNC void gen_opf(int op);
1409 ST_FUNC void gen_cvt_ftoi(int t);
1410 ST_FUNC void gen_cvt_ftof(int t);
1411 ST_FUNC void ggoto(void);
1412 #ifndef TCC_TARGET_C67
1413 ST_FUNC void o(unsigned int c);
1414 #endif
1415 #ifndef TCC_TARGET_ARM
1416 ST_FUNC void gen_cvt_itof(int t);
1417 #endif
1418 ST_FUNC void gen_vla_sp_save(int addr);
1419 ST_FUNC void gen_vla_sp_restore(int addr);
1420 ST_FUNC void gen_vla_alloc(CType *type, int align);
1421
1422 static inline uint16_t read16le(unsigned char *p) {
1423     return p[0] | (uint16_t)p[1] << 8;
1424 }
1425 static inline void write16le(unsigned char *p, uint16_t x) {
1426     p[0] = x & 255, p[1] = x >> 8 & 255;
1427 }
1428 static inline uint32_t read32le(unsigned char *p) {
1429   return read16le(p) | (uint32_t)read16le(p + 2) << 16;
1430 }
1431 static inline void write32le(unsigned char *p, uint32_t x) {
1432     write16le(p, x), write16le(p + 2, x >> 16);
1433 }
1434 static inline uint64_t read64le(unsigned char *p) {
1435   return read32le(p) | (uint64_t)read32le(p + 4) << 32;
1436 }
1437 static inline void write64le(unsigned char *p, uint64_t x) {
1438     write32le(p, x), write32le(p + 4, x >> 32);
1439 }
1440
1441 /* ------------ i386-gen.c ------------ */
1442 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1443 ST_FUNC void g(int c);
1444 ST_FUNC int oad(int c, int s);
1445 ST_FUNC void gen_le16(int c);
1446 ST_FUNC void gen_le32(int c);
1447 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1448 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1449 #endif
1450
1451 #ifdef CONFIG_TCC_BCHECK
1452 ST_FUNC void gen_bounded_ptr_add(void);
1453 ST_FUNC void gen_bounded_ptr_deref(void);
1454 #endif
1455
1456 /* ------------ x86_64-gen.c ------------ */
1457 #ifdef TCC_TARGET_X86_64
1458 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1459 ST_FUNC void gen_opl(int op);
1460 #endif
1461
1462 /* ------------ arm-gen.c ------------ */
1463 #ifdef TCC_TARGET_ARM
1464 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1465 ST_FUNC char *default_elfinterp(struct TCCState *s);
1466 #endif
1467 ST_FUNC void arm_init(struct TCCState *s);
1468 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1469 ST_FUNC void gen_cvt_itof1(int t);
1470 #endif
1471
1472 /* ------------ arm64-gen.c ------------ */
1473 #ifdef TCC_TARGET_ARM64
1474 ST_FUNC void gen_cvt_sxtw(void);
1475 ST_FUNC void gen_opl(int op);
1476 ST_FUNC void greturn(void);
1477 ST_FUNC void gen_va_start(void);
1478 ST_FUNC void gen_va_arg(CType *t);
1479 ST_FUNC void gen_clear_cache(void);
1480 #endif
1481
1482 /* ------------ c67-gen.c ------------ */
1483 #ifdef TCC_TARGET_C67
1484 #endif
1485
1486 /* ------------ tcccoff.c ------------ */
1487
1488 #ifdef TCC_TARGET_COFF
1489 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1490 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1491 #endif
1492
1493 /* ------------ tccasm.c ------------ */
1494 ST_FUNC void asm_instr(void);
1495 ST_FUNC void asm_global_instr(void);
1496 #ifdef CONFIG_TCC_ASM
1497 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1498 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1499 ST_FUNC int asm_int_expr(TCCState *s1);
1500 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1501 /* ------------ i386-asm.c ------------ */
1502 ST_FUNC void gen_expr32(ExprValue *pe);
1503 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1504 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1505 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1506 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1507 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1508 #endif
1509
1510 /* ------------ tccpe.c -------------- */
1511 #ifdef TCC_TARGET_PE
1512 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1513 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1514 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1515 #ifndef TCC_TARGET_ARM
1516 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1517 #endif
1518 #ifdef TCC_TARGET_X86_64
1519 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1520 #endif
1521 /* symbol properties stored in Elf32_Sym->st_other */
1522 # define ST_PE_EXPORT 0x10
1523 # define ST_PE_IMPORT 0x20
1524 # define ST_PE_STDCALL 0x40
1525 #endif
1526
1527 /* ------------ tccrun.c ----------------- */
1528 #ifdef TCC_IS_NATIVE
1529 #ifdef CONFIG_TCC_STATIC
1530 #define RTLD_LAZY       0x001
1531 #define RTLD_NOW        0x002
1532 #define RTLD_GLOBAL     0x100
1533 #define RTLD_DEFAULT    NULL
1534 /* dummy function for profiling */
1535 ST_FUNC void *dlopen(const char *filename, int flag);
1536 ST_FUNC void dlclose(void *p);
1537 ST_FUNC const char *dlerror(void);
1538 ST_FUNC void *dlsym(int flag, const char *symbol);
1539 #endif
1540
1541 #ifdef CONFIG_TCC_BACKTRACE
1542 ST_DATA int rt_num_callers;
1543 ST_DATA const char **rt_bound_error_msg;
1544 ST_DATA void *rt_prog_main;
1545 ST_FUNC void tcc_set_num_callers(int n);
1546 #endif
1547 #endif
1548
1549 /********************************************************/
1550 #undef ST_DATA
1551 #ifdef ONE_SOURCE
1552 #define ST_DATA static
1553 #else
1554 #define ST_DATA
1555 #endif
1556 /********************************************************/
1557 #endif /* _TCC_H */