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 #ifdef CONFIG_TCCASSERT
  40 #include <assert.h>
  41 #define TCC_ASSERT(ex) assert(ex)
  42 #else
  43 #define TCC_ASSERT(ex)
  44 #endif
  45
  46 #ifndef _WIN32
  47 # include <unistd.h>
  48 # include <sys/time.h>
  49 # include <sys/ucontext.h>
  50 # include <sys/mman.h>
  51 # ifndef CONFIG_TCC_STATIC
  52 #  include <dlfcn.h>
  53 # endif
  54 /* XXX: need to define this to use them in non ISOC99 context */
  55  extern float strtof (const char *__nptr, char **__endptr);
  56  extern long double strtold (const char *__nptr, char **__endptr);
  57 #else /* on _WIN32: */
  58 # include <windows.h>
  59 # include <sys/timeb.h>
  60 # include <io.h> /* open, close etc. */
  61 # include <direct.h> /* getcwd */
  62 # ifdef __GNUC__
  63 #  include <stdint.h>
  64 # endif
  65 # define inline __inline
  66 # define inp next_inp
  67 # define snprintf _snprintf
  68 # define vsnprintf _vsnprintf
  69 # ifndef __GNUC__
  70 #  define strtold (long double)strtod
  71 #  define strtof (float)strtod
  72 #  define strtoll _strtoi64
  73 #  define strtoull _strtoui64
  74 # endif
  75 # ifdef LIBTCC_AS_DLL
  76 #  define LIBTCCAPI __declspec(dllexport)
  77 #  define PUB_FUNC LIBTCCAPI
  78 # endif
  79 #endif
  80
  81 #ifndef O_BINARY
  82 # define O_BINARY 0
  83 #endif
  84
  85 #ifdef __GNUC__
  86 # define NORETURN __attribute__ ((noreturn))
  87 #elif defined _MSC_VER
  88 # define NORETURN __declspec(noreturn)
  89 #else
  90 # define NORETURN
  91 #endif
  92
  93 #ifdef _WIN32
  94 # define IS_DIRSEP(c) (c == '/' || c == '\\')
  95 # define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
  96 # define PATHCMP stricmp
  97 #else
  98 # define IS_DIRSEP(c) (c == '/')
  99 # define IS_ABSPATH(p) IS_DIRSEP(p[0])
 100 # define PATHCMP strcmp
 101 #endif
 102
 103 #ifdef TCC_TARGET_PE
 104 #define PATHSEP ';'
 105 #else
 106 #define PATHSEP ':'
 107 #endif
 108
 109 #include "elf.h"
 110 #if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
 111 # define ELFCLASSW ELFCLASS64
 112 # define ElfW(type) Elf##64##_##type
 113 # define ELFW(type) ELF##64##_##type
 114 # define ElfW_Rel ElfW(Rela)
 115 # define SHT_RELX SHT_RELA
 116 # define REL_SECTION_FMT ".rela%s"
 117 /* XXX: DLL with PLT would only work with x86-64 for now */
 118 # define TCC_OUTPUT_DLL_WITH_PLT
 119 #else
 120 # define ELFCLASSW ELFCLASS32
 121 # define ElfW(type) Elf##32##_##type
 122 # define ELFW(type) ELF##32##_##type
 123 # define ElfW_Rel ElfW(Rel)
 124 # define SHT_RELX SHT_REL
 125 # define REL_SECTION_FMT ".rel%s"
 126 #endif
 127
 128 /* target address type */
 129 #define addr_t ElfW(Addr)
 130
 131 #include "stab.h"
 132 #include "libtcc.h"
 133
 134 static inline uint16_t read16le(unsigned char *p)
 135 {
 136     return p[0] | (uint16_t)p[1] << 8;
 137 }
 138
 139 static inline void write16le(unsigned char *p, uint16_t x)
 140 {
 141     p[0] = x & 255;
 142     p[1] = x >> 8 & 255;
 143 }
 144
 145 static inline uint32_t read32le(unsigned char *p)
 146 {
 147   return (p[0] | (uint32_t)p[1] << 8 |
 148           (uint32_t)p[2] << 16 | (uint32_t)p[3] << 24);
 149 }
 150
 151 static inline void write32le(unsigned char *p, uint32_t x)
 152 {
 153     p[0] = x & 255;
 154     p[1] = x >> 8 & 255;
 155     p[2] = x >> 16 & 255;
 156     p[3] = x >> 24 & 255;
 157 }
 158
 159 static inline uint64_t read64le(unsigned char *p)
 160 {
 161   return (p[0] | (uint64_t)p[1] << 8 |
 162           (uint64_t)p[2] << 16 | (uint64_t)p[3] << 24 |
 163           (uint64_t)p[4] << 32 | (uint64_t)p[5] << 40 |
 164           (uint64_t)p[6] << 48 | (uint64_t)p[7] << 56);
 165 }
 166
 167 static inline void write64le(unsigned char *p, uint64_t x)
 168 {
 169     p[0] = x & 255;
 170     p[1] = x >> 8 & 255;
 171     p[2] = x >> 16 & 255;
 172     p[3] = x >> 24 & 255;
 173     p[4] = x >> 32 & 255;
 174     p[5] = x >> 40 & 255;
 175     p[6] = x >> 48 & 255;
 176     p[7] = x >> 56 & 255;
 177 }
 178
 179 /* parser debug */
 180 /* #define PARSE_DEBUG */
 181 /* preprocessor debug */
 182 /* #define PP_DEBUG */
 183 /* include file debug */
 184 /* #define INC_DEBUG */
 185 /* memory leak debug */
 186 /* #define MEM_DEBUG */
 187 /* assembler debug */
 188 /* #define ASM_DEBUG */
 189
 190 /* target selection */
 191 /* #define TCC_TARGET_I386   *//* i386 code generator */
 192 /* #define TCC_TARGET_ARM    *//* ARMv4 code generator */
 193 /* #define TCC_TARGET_ARM64  *//* ARMv8 code generator */
 194 /* #define TCC_TARGET_C67    *//* TMS320C67xx code generator */
 195 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
 196
 197 /* default target is I386 */
 198 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 199     !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
 200     !defined(TCC_TARGET_X86_64)
 201 #define TCC_TARGET_I386
 202 #endif
 203
 204 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 205     !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \
 206     !defined(CONFIG_USE_LIBGCC)
 207 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 208 #endif
 209
 210 /* define it to include assembler support */
 211 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \
 212     !defined(TCC_TARGET_C67)
 213 #define CONFIG_TCC_ASM
 214 #endif
 215
 216 /* object format selection */
 217 #if defined(TCC_TARGET_C67)
 218 #define TCC_TARGET_COFF
 219 #endif
 220
 221 /* only native compiler supports -run */
 222 #if defined _WIN32 == defined TCC_TARGET_PE
 223 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 224 #  define TCC_IS_NATIVE
 225 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 226 #  define TCC_IS_NATIVE
 227 # elif defined __arm__ && defined TCC_TARGET_ARM
 228 #  define TCC_IS_NATIVE
 229 # elif defined __aarch64__ && defined TCC_TARGET_ARM64
 230 #  define TCC_IS_NATIVE
 231 # endif
 232 #endif
 233
 234 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 235 # define CONFIG_TCC_BACKTRACE
 236 #endif
 237
 238 /* ------------ path configuration ------------ */
 239
 240 #ifndef CONFIG_SYSROOT
 241 # define CONFIG_SYSROOT ""
 242 #endif
 243 #ifndef CONFIG_TCCDIR
 244 # define CONFIG_TCCDIR "."
 245 #endif
 246 #ifndef CONFIG_LDDIR
 247 # ifdef TCC_TARGET_X86_64
 248 #   define CONFIG_LDDIR "lib64"
 249 # else
 250 #   define CONFIG_LDDIR "lib"
 251 # endif
 252 #endif
 253
 254 #ifdef CONFIG_MULTIARCHDIR
 255 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
 256 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
 257 #else
 258 # define USE_MUADIR(s) s
 259 # define ALSO_MUADIR(s) s
 260 #endif
 261
 262 /* path to find crt1.o, crti.o and crtn.o */
 263 #ifndef CONFIG_TCC_CRTPREFIX
 264 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
 265 #endif
 266
 267 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 268
 269 /* system include paths */
 270 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 271 # ifdef TCC_TARGET_PE
 272 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 273 # else
 274 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 275         ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
 276     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") \
 277     ":" "{B}/include"
 278 # endif
 279 #endif
 280
 281 /* library search paths */
 282 #ifndef CONFIG_TCC_LIBPATHS
 283 # ifdef TCC_TARGET_PE
 284 #  define CONFIG_TCC_LIBPATHS "{B}/lib"
 285 # else
 286 #  define CONFIG_TCC_LIBPATHS \
 287         ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
 288     ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
 289     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
 290 # endif
 291 #endif
 292
 293 /* name of ELF interpreter */
 294 #ifndef CONFIG_TCC_ELFINTERP
 295 # if defined __FreeBSD__
 296 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 297 # elif defined __FreeBSD_kernel__
 298 #  if defined(TCC_TARGET_X86_64)
 299 #   define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
 300 #  else
 301 #   define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
 302 #  endif
 303 # elif defined __DragonFly__
 304 #  define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2"
 305 # elif defined __NetBSD__
 306 #  define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so"
 307 # elif defined __GNU__
 308 #  define CONFIG_TCC_ELFINTERP "/lib/ld.so"
 309 # elif defined(TCC_TARGET_PE)
 310 #  define CONFIG_TCC_ELFINTERP "-"
 311 # elif defined(TCC_UCLIBC)
 312 #  define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */
 313 # elif defined TCC_TARGET_ARM64
 314 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1"
 315 # elif defined(TCC_TARGET_X86_64)
 316 #  define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
 317 # elif !defined(TCC_ARM_EABI)
 318 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
 319 # endif
 320 #endif
 321
 322 /* var elf_interp dans *-gen.c */
 323 #ifdef CONFIG_TCC_ELFINTERP
 324 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
 325 #else
 326 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
 327 #endif
 328
 329 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 330 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
 331
 332 /* -------------------------------------------- */
 333 /* include the target specific definitions */
 334
 335 #define TARGET_DEFS_ONLY
 336 #ifdef TCC_TARGET_I386
 337 # include "i386-gen.c"
 338 #endif
 339 #ifdef TCC_TARGET_X86_64
 340 # include "x86_64-gen.c"
 341 #endif
 342 #ifdef TCC_TARGET_ARM
 343 # include "arm-gen.c"
 344 #endif
 345 #ifdef TCC_TARGET_ARM64
 346 # include "arm64-gen.c"
 347 #endif
 348 #ifdef TCC_TARGET_C67
 349 # include "coff.h"
 350 # include "c67-gen.c"
 351 #endif
 352 #undef TARGET_DEFS_ONLY
 353
 354 /* -------------------------------------------- */
 355
 356 #define INCLUDE_STACK_SIZE  32
 357 #define IFDEF_STACK_SIZE    64
 358 #define VSTACK_SIZE         256
 359 #define STRING_MAX_SIZE     1024
 360 #define PACK_STACK_SIZE     8
 361
 362 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 363 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 364 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 365
 366 /* token symbol management */
 367 typedef struct TokenSym {
 368     struct TokenSym *hash_next;
 369     struct Sym *sym_define; /* direct pointer to define */
 370     struct Sym *sym_label; /* direct pointer to label */
 371     struct Sym *sym_struct; /* direct pointer to structure */
 372     struct Sym *sym_identifier; /* direct pointer to identifier */
 373     int tok; /* token number */
 374     int len;
 375     char str[1];
 376 } TokenSym;
 377
 378 #ifdef TCC_TARGET_PE
 379 typedef unsigned short nwchar_t;
 380 #else
 381 typedef int nwchar_t;
 382 #endif
 383
 384 typedef struct CString {
 385     int size; /* size in bytes */
 386     void *data; /* either 'char *' or 'nwchar_t *' */
 387     int size_allocated;
 388     void *data_allocated; /* if non NULL, data has been malloced */
 389 } CString;
 390
 391 /* type definition */
 392 typedef struct CType {
 393     int t;
 394     struct Sym *ref;
 395 } CType;
 396
 397 /* constant value */
 398 typedef union CValue {
 399     long double ld;
 400     double d;
 401     float f;
 402     uint64_t i;
 403     struct CString *cstr;
 404     int tab[LDOUBLE_SIZE/4];
 405 } CValue;
 406
 407 /* value on stack */
 408 typedef struct SValue {
 409     CType type;      /* type */
 410     unsigned short r;      /* register + flags */
 411     unsigned short r2;     /* second register, used for 'long long'
 412                               type. If not used, set to VT_CONST */
 413     CValue c;              /* constant, if VT_CONST */
 414     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 415 } SValue;
 416
 417 struct Attribute {
 418     unsigned
 419         func_call     : 3, /* calling convention (0..5), see below */
 420         aligned       : 5, /* alignement (0..16) */
 421         packed        : 1,
 422         func_export   : 1,
 423         func_import   : 1,
 424         func_args     : 5,
 425         func_proto    : 1,
 426         mode          : 4,
 427         weak          : 1,
 428         visibility    : 2,
 429         fill          : 8; // 8 bits left to fit well in union below
 430 };
 431
 432 /* GNUC attribute definition */
 433 typedef struct AttributeDef {
 434     struct Attribute a;
 435     struct Section *section;
 436     int alias_target;    /* token */
 437     int asm_label;    /* associated asm label */
 438 } AttributeDef;
 439
 440 /* symbol management */
 441 typedef struct Sym {
 442     int v;    /* symbol token */
 443     int asm_label;    /* associated asm label */
 444     union {
 445         long r;    /* associated register */
 446         struct Attribute a;
 447     };
 448     union {
 449         long c;    /* associated number */
 450         int *d;   /* define token stream */
 451     };
 452     CType type;    /* associated type */
 453     union {
 454         struct Sym *next; /* next related symbol */
 455         long jnext; /* next jump label */
 456     };
 457     struct Sym *prev; /* prev symbol in stack */
 458     struct Sym *prev_tok; /* previous symbol for this token */
 459 } Sym;
 460
 461 /* section definition */
 462 /* XXX: use directly ELF structure for parameters ? */
 463 /* special flag to indicate that the section should not be linked to
 464    the other ones */
 465 #define SHF_PRIVATE 0x80000000
 466
 467 /* special flag, too */
 468 #define SECTION_ABS ((void *)1)
 469
 470 typedef struct Section {
 471     unsigned long data_offset; /* current data offset */
 472     unsigned char *data;       /* section data */
 473     unsigned long data_allocated; /* used for realloc() handling */
 474     int sh_name;             /* elf section name (only used during output) */
 475     int sh_num;              /* elf section number */
 476     int sh_type;             /* elf section type */
 477     int sh_flags;            /* elf section flags */
 478     int sh_info;             /* elf section info */
 479     int sh_addralign;        /* elf section alignment */
 480     int sh_entsize;          /* elf entry size */
 481     unsigned long sh_size;   /* section size (only used during output) */
 482     addr_t sh_addr;          /* address at which the section is relocated */
 483     unsigned long sh_offset; /* file offset */
 484     int nb_hashed_syms;      /* used to resize the hash table */
 485     struct Section *link;    /* link to another section */
 486     struct Section *reloc;   /* corresponding section for relocation, if any */
 487     struct Section *hash;     /* hash table for symbols */
 488     struct Section *next;
 489     char name[1];           /* section name */
 490 } Section;
 491
 492 typedef struct DLLReference {
 493     int level;
 494     void *handle;
 495     char name[1];
 496 } DLLReference;
 497
 498 /* -------------------------------------------------- */
 499
 500 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 501 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 502 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 503
 504 /* stored in 'Sym.c' field */
 505 #define FUNC_NEW       1 /* ansi function prototype */
 506 #define FUNC_OLD       2 /* old function prototype */
 507 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 508
 509 /* stored in 'Sym.r' field */
 510 #define FUNC_CDECL     0 /* standard c call */
 511 #define FUNC_STDCALL   1 /* pascal c call */
 512 #define FUNC_FASTCALL1 2 /* first param in %eax */
 513 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 514 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 515 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 516
 517 /* field 'Sym.t' for macros */
 518 #define MACRO_OBJ      0 /* object like macro */
 519 #define MACRO_FUNC     1 /* function like macro */
 520
 521 /* field 'Sym.r' for C labels */
 522 #define LABEL_DEFINED  0 /* label is defined */
 523 #define LABEL_FORWARD  1 /* label is forward defined */
 524 #define LABEL_DECLARED 2 /* label is declared but never used */
 525
 526 /* type_decl() types */
 527 #define TYPE_ABSTRACT  1 /* type without variable */
 528 #define TYPE_DIRECT    2 /* type with variable */
 529
 530 #define IO_BUF_SIZE 8192
 531
 532 typedef struct BufferedFile {
 533     uint8_t *buf_ptr;
 534     uint8_t *buf_end;
 535     int fd;
 536     struct BufferedFile *prev;
 537     int line_num;    /* current line number - here to simplify code */
 538     int line_ref;    /* tcc -E: last printed line */
 539     int ifndef_macro;  /* #ifndef macro / #endif search */
 540     int ifndef_macro_saved; /* saved ifndef_macro */
 541     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 542     int include_next_index; /* next search path */
 543     char filename[1024];    /* filename */
 544     unsigned char unget[4];
 545     unsigned char buffer[1]; /* extra size for CH_EOB char */
 546 } BufferedFile;
 547
 548 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 549 #define CH_EOF   (-1)   /* end of file */
 550
 551 /* parsing state (used to save parser state to reparse part of the
 552    source several times) */
 553 typedef struct ParseState {
 554     const int *macro_ptr;
 555     int line_num;
 556     int tok;
 557     CValue tokc;
 558 } ParseState;
 559
 560 /* used to record tokens */
 561 typedef struct TokenString {
 562     int *str;
 563     int len;
 564     int allocated_len;
 565     int last_line_num;
 566     /* used to chain token-strings with begin/end_macro() */
 567     struct TokenString *prev;
 568     const int *prev_ptr;
 569     char alloc;
 570 } TokenString;
 571
 572 /* inline functions */
 573 typedef struct InlineFunc {
 574     TokenString func_str;
 575     Sym *sym;
 576     char filename[1];
 577 } InlineFunc;
 578
 579 /* include file cache, used to find files faster and also to eliminate
 580    inclusion if the include file is protected by #ifndef ... #endif */
 581 typedef struct CachedInclude {
 582     int ifndef_macro;
 583     int hash_next; /* -1 if none */
 584     char filename[1]; /* path specified in #include */
 585 } CachedInclude;
 586
 587 #define CACHED_INCLUDES_HASH_SIZE 512
 588
 589 #ifdef CONFIG_TCC_ASM
 590 typedef struct ExprValue {
 591     uint32_t v;
 592     Sym *sym;
 593 } ExprValue;
 594
 595 #define MAX_ASM_OPERANDS 30
 596 typedef struct ASMOperand {
 597     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 598     char *constraint;
 599     char asm_str[16]; /* computed asm string for operand */
 600     SValue *vt; /* C value of the expression */
 601     int ref_index; /* if >= 0, gives reference to a output constraint */
 602     int input_index; /* if >= 0, gives reference to an input constraint */
 603     int priority; /* priority, used to assign registers */
 604     int reg; /* if >= 0, register number used for this operand */
 605     int is_llong; /* true if double register value */
 606     int is_memory; /* true if memory operand */
 607     int is_rw;     /* for '+' modifier */
 608 } ASMOperand;
 609 #endif
 610
 611 struct sym_attr {
 612     unsigned long got_offset;
 613     unsigned long plt_offset;
 614 #ifdef TCC_TARGET_ARM
 615     unsigned char plt_thumb_stub:1;
 616 #endif
 617 };
 618
 619 struct TCCState {
 620
 621     int verbose; /* if true, display some information during compilation */
 622     int nostdinc; /* if true, no standard headers are added */
 623     int nostdlib; /* if true, no standard libraries are added */
 624     int nocommon; /* if true, do not use common symbols for .bss data */
 625     int static_link; /* if true, static linking is performed */
 626     int rdynamic; /* if true, all symbols are exported */
 627     int symbolic; /* if true, resolve symbols in the current module first */
 628     int alacarte_link; /* if true, only link in referenced objects from archive */
 629
 630     char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
 631     char *soname; /* as specified on the command line (-soname) */
 632     char *rpath; /* as specified on the command line (-Wl,-rpath=) */
 633
 634     /* output type, see TCC_OUTPUT_XXX */
 635     int output_type;
 636     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 637     int output_format;
 638
 639     /* C language options */
 640     int char_is_unsigned;
 641     int leading_underscore;
 642     int ms_extensions;          /* allow nested named struct w/o identifier behave like unnamed */
 643     int old_struct_init_code;   /* use old algorithm to init array in struct when there is no '{' used.
 644                                    Liuux 2.4.26 can't find initrd when compiled with a new algorithm */
 645     int dollars_in_identifiers; /* allows '$' char in indentifiers */
 646
 647     /* warning switches */
 648     int warn_write_strings;
 649     int warn_unsupported;
 650     int warn_error;
 651     int warn_none;
 652     int warn_implicit_function_declaration;
 653
 654     /* compile with debug symbol (and use them if error during execution) */
 655     int do_debug;
 656     int do_strip;
 657 #ifdef CONFIG_TCC_BCHECK
 658     /* compile with built-in memory and bounds checker */
 659     int do_bounds_check;
 660 #endif
 661 #ifdef TCC_TARGET_ARM
 662     enum float_abi float_abi; /* float ABI of the generated code*/
 663 #endif
 664
 665     addr_t text_addr; /* address of text section */
 666     int has_text_addr;
 667
 668     unsigned long section_align; /* section alignment */
 669
 670     char *init_symbol; /* symbols to call at load-time (not used currently) */
 671     char *fini_symbol; /* symbols to call at unload-time (not used currently) */
 672
 673 #ifdef TCC_TARGET_I386
 674     int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
 675 #endif
 676
 677     /* array of all loaded dlls (including those referenced by loaded dlls) */
 678     DLLReference **loaded_dlls;
 679     int nb_loaded_dlls;
 680
 681     /* include paths */
 682     char **include_paths;
 683     int nb_include_paths;
 684
 685     char **sysinclude_paths;
 686     int nb_sysinclude_paths;
 687
 688     /* library paths */
 689     char **library_paths;
 690     int nb_library_paths;
 691
 692     /* crt?.o object path */
 693     char **crt_paths;
 694     int nb_crt_paths;
 695
 696     /* error handling */
 697     void *error_opaque;
 698     void (*error_func)(void *opaque, const char *msg);
 699     int error_set_jmp_enabled;
 700     jmp_buf error_jmp_buf;
 701     int nb_errors;
 702
 703     /* output file for preprocessing (-E) */
 704     FILE *ppfp;
 705     enum {
 706         LINE_MACRO_OUTPUT_FORMAT_GCC,
 707         LINE_MACRO_OUTPUT_FORMAT_NONE,
 708         LINE_MACRO_OUTPUT_FORMAT_STD
 709     } Pflag; /* -P switch */
 710     int dflag; /* -dX value */
 711
 712     /* for -MD/-MF: collected dependencies for this compilation */
 713     char **target_deps;
 714     int nb_target_deps;
 715
 716     /* compilation */
 717     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 718     BufferedFile **include_stack_ptr;
 719
 720     int ifdef_stack[IFDEF_STACK_SIZE];
 721     int *ifdef_stack_ptr;
 722
 723     /* included files enclosed with #ifndef MACRO */
 724     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 725     CachedInclude **cached_includes;
 726     int nb_cached_includes;
 727
 728     /* #pragma pack stack */
 729     int pack_stack[PACK_STACK_SIZE];
 730     int *pack_stack_ptr;
 731     char **pragma_libs;
 732     int nb_pragma_libs;
 733
 734     /* inline functions are stored as token lists and compiled last
 735        only if referenced */
 736     struct InlineFunc **inline_fns;
 737     int nb_inline_fns;
 738
 739     /* sections */
 740     Section **sections;
 741     int nb_sections; /* number of sections, including first dummy section */
 742
 743     Section **priv_sections;
 744     int nb_priv_sections; /* number of private sections */
 745
 746     /* got & plt handling */
 747     Section *got;
 748     Section *plt;
 749     struct sym_attr *sym_attrs;
 750     int nb_sym_attrs;
 751     /* give the correspondance from symtab indexes to dynsym indexes */
 752     int *symtab_to_dynsym;
 753
 754     /* temporary dynamic symbol sections (for dll loading) */
 755     Section *dynsymtab_section;
 756     /* exported dynamic symbol section */
 757     Section *dynsym;
 758     /* copy of the gobal symtab_section variable */
 759     Section *symtab;
 760     /* tiny assembler state */
 761     Sym *asm_labels;
 762
 763 #ifdef TCC_TARGET_PE
 764     /* PE info */
 765     int pe_subsystem;
 766     unsigned pe_file_align;
 767     unsigned pe_stack_size;
 768 # ifdef TCC_TARGET_X86_64
 769     Section *uw_pdata;
 770     int uw_sym;
 771     unsigned uw_offs;
 772 # endif
 773 #endif
 774
 775 #ifdef TCC_IS_NATIVE
 776     const char *runtime_main;
 777     /* for tcc_relocate */
 778     void *runtime_mem;
 779 # ifdef HAVE_SELINUX
 780     void *write_mem;
 781     unsigned long mem_size;
 782 # endif
 783 #endif
 784
 785     /* used by main and tcc_parse_args only */
 786     char **files; /* files seen on command line */
 787     int nb_files; /* number thereof */
 788     int nb_libraries; /* number of libs thereof */
 789     char *outfile; /* output filename */
 790     char *option_m; /* only -m32/-m64 handled */
 791     int print_search_dirs; /* option */
 792     int option_r; /* option -r */
 793     int do_bench; /* option -bench */
 794     int gen_deps; /* option -MD  */
 795     char *deps_outfile; /* option -MF */
 796 };
 797
 798 /* The current value can be: */
 799 #define VT_VALMASK   0x003f  /* mask for value location, register or: */
 800 #define VT_CONST     0x0030  /* constant in vc (must be first non register value) */
 801 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 802 #define VT_LOCAL     0x0032  /* offset on stack */
 803 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 804 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 805 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 806 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 807 #define VT_LVAL      0x0100  /* var is an lvalue */
 808 #define VT_SYM       0x0200  /* a symbol value is added */
 809 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 810                                 char/short stored in integer registers) */
 811 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 812                                 dereferencing value */
 813 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 814                                 bounding function call point is in vc */
 815 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 816 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 817 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 818 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 819
 820 /* types */
 821 #define VT_BTYPE       0x000f  /* mask for basic type */
 822 #define VT_INT              0  /* integer type */
 823 #define VT_BYTE             1  /* signed byte type */
 824 #define VT_SHORT            2  /* short type */
 825 #define VT_VOID             3  /* void type */
 826 #define VT_PTR              4  /* pointer */
 827 #define VT_ENUM             5  /* enum definition */
 828 #define VT_FUNC             6  /* function type */
 829 #define VT_STRUCT           7  /* struct/union definition */
 830 #define VT_FLOAT            8  /* IEEE float */
 831 #define VT_DOUBLE           9  /* IEEE double */
 832 #define VT_LDOUBLE         10  /* IEEE long double */
 833 #define VT_BOOL            11  /* ISOC99 boolean type */
 834 #define VT_LLONG           12  /* 64 bit integer */
 835 #define VT_LONG            13  /* long integer (NEVER USED as type, only
 836                                   during parsing) */
 837 #define VT_QLONG           14  /* 128-bit integer. Only used for x86-64 ABI */
 838 #define VT_QFLOAT          15  /* 128-bit float. Only used for x86-64 ABI */
 839 #define VT_UNSIGNED    0x0010  /* unsigned type */
 840 #define VT_ARRAY       0x0020  /* array type (also has VT_PTR) */
 841 #define VT_BITFIELD    0x0040  /* bitfield modifier */
 842 #define VT_CONSTANT    0x0800  /* const modifier */
 843 #define VT_VOLATILE    0x1000  /* volatile modifier */
 844 #define VT_DEFSIGN     0x2000  /* signed type */
 845 #define VT_VLA     0x00020000  /* VLA type (also has VT_PTR and VT_ARRAY) */
 846
 847 /* storage */
 848 #define VT_EXTERN  0x00000080  /* extern definition */
 849 #define VT_STATIC  0x00000100  /* static variable */
 850 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 851 #define VT_INLINE  0x00000400  /* inline definition */
 852 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 853 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 854 #define VT_WEAK    0x00010000  /* weak symbol */
 855 #define VT_TLS     0x00040000  /* thread-local storage */
 856 #define VT_VIS_SHIFT    19     /* shift for symbol visibility, overlapping
 857                                   bitfield values, because bitfields never
 858                                   have linkage and hence never have
 859                                   visibility.  */
 860 #define VT_VIS_SIZE      2     /* We have four visibilities.  */
 861 #define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT)
 862
 863 #define VT_STRUCT_SHIFT 19     /* shift for bitfield shift values (max: 32 - 2*6) */
 864
 865
 866 /* type mask (except storage) */
 867 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK)
 868 #define VT_TYPE (~(VT_STORAGE))
 869
 870 /* token values */
 871
 872 /* warning: the following compare tokens depend on i386 asm code */
 873 #define TOK_ULT 0x92
 874 #define TOK_UGE 0x93
 875 #define TOK_EQ  0x94
 876 #define TOK_NE  0x95
 877 #define TOK_ULE 0x96
 878 #define TOK_UGT 0x97
 879 #define TOK_Nset 0x98
 880 #define TOK_Nclear 0x99
 881 #define TOK_LT  0x9c
 882 #define TOK_GE  0x9d
 883 #define TOK_LE  0x9e
 884 #define TOK_GT  0x9f
 885
 886 #define TOK_LAND  0xa0
 887 #define TOK_LOR   0xa1
 888 #define TOK_DEC   0xa2
 889 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 890 #define TOK_INC   0xa4
 891 #define TOK_UDIV  0xb0 /* unsigned division */
 892 #define TOK_UMOD  0xb1 /* unsigned modulo */
 893 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 894
 895 /* tokens that carry values (in additional token string space / tokc) --> */
 896 #define TOK_CCHAR   0xb3 /* char constant in tokc */
 897 #define TOK_LCHAR   0xb4
 898 #define TOK_CINT    0xb5 /* number in tokc */
 899 #define TOK_CUINT   0xb6 /* unsigned int constant */
 900 #define TOK_CLLONG  0xb7 /* long long constant */
 901 #define TOK_CULLONG 0xb8 /* unsigned long long constant */
 902 #define TOK_STR     0xb9 /* pointer to string in tokc */
 903 #define TOK_LSTR    0xba
 904 #define TOK_CFLOAT  0xbb /* float constant */
 905 #define TOK_CDOUBLE 0xbc /* double constant */
 906 #define TOK_CLDOUBLE 0xbd /* long double constant */
 907 #define TOK_PPNUM   0xbe /* preprocessor number */
 908 #define TOK_PPSTR   0xbf /* preprocessor string */
 909 #define TOK_LINENUM 0xc0 /* line number info */
 910 /* <-- */
 911
 912 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 913 #define TOK_ADDC1    0xc3 /* add with carry generation */
 914 #define TOK_ADDC2    0xc4 /* add with carry use */
 915 #define TOK_SUBC1    0xc5 /* add with carry generation */
 916 #define TOK_SUBC2    0xc6 /* add with carry use */
 917 #define TOK_ARROW    0xc7
 918 #define TOK_DOTS     0xc8 /* three dots */
 919 #define TOK_SHR      0xc9 /* unsigned shift right */
 920 #define TOK_TWOSHARPS 0xca /* ## preprocessing token */
 921 #define TOK_PLCHLDR  0xcb /* placeholder token as defined in C99 */
 922 #define TOK_NOSUBST  0xcc /* means following token has already been pp'd */
 923
 924 #define TOK_SHL   0x01 /* shift left */
 925 #define TOK_SAR   0x02 /* signed shift right */
 926
 927 /* assignement operators : normal operator or 0x80 */
 928 #define TOK_A_MOD 0xa5
 929 #define TOK_A_AND 0xa6
 930 #define TOK_A_MUL 0xaa
 931 #define TOK_A_ADD 0xab
 932 #define TOK_A_SUB 0xad
 933 #define TOK_A_DIV 0xaf
 934 #define TOK_A_XOR 0xde
 935 #define TOK_A_OR  0xfc
 936 #define TOK_A_SHL 0x81
 937 #define TOK_A_SAR 0x82
 938
 939 #ifndef offsetof
 940 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 941 #endif
 942
 943 #ifndef countof
 944 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 945 #endif
 946
 947 #define TOK_EOF       (-1)  /* end of file */
 948 #define TOK_LINEFEED  10    /* line feed */
 949
 950 /* all identificators and strings have token above that */
 951 #define TOK_IDENT 256
 952
 953 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 954 #define TOK_ASM_int TOK_INT
 955 #define TOK_ASM_weak TOK_WEAK1
 956
 957 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 958 /* only used for i386 asm opcodes definitions */
 959 #define DEF_BWL(x) \
 960  DEF(TOK_ASM_ ## x ## b, #x "b") \
 961  DEF(TOK_ASM_ ## x ## w, #x "w") \
 962  DEF(TOK_ASM_ ## x ## l, #x "l") \
 963  DEF(TOK_ASM_ ## x, #x)
 964 #define DEF_WL(x) \
 965  DEF(TOK_ASM_ ## x ## w, #x "w") \
 966  DEF(TOK_ASM_ ## x ## l, #x "l") \
 967  DEF(TOK_ASM_ ## x, #x)
 968 #ifdef TCC_TARGET_X86_64
 969 # define DEF_BWLQ(x) \
 970  DEF(TOK_ASM_ ## x ## b, #x "b") \
 971  DEF(TOK_ASM_ ## x ## w, #x "w") \
 972  DEF(TOK_ASM_ ## x ## l, #x "l") \
 973  DEF(TOK_ASM_ ## x ## q, #x "q") \
 974  DEF(TOK_ASM_ ## x, #x)
 975 # define DEF_WLQ(x) \
 976  DEF(TOK_ASM_ ## x ## w, #x "w") \
 977  DEF(TOK_ASM_ ## x ## l, #x "l") \
 978  DEF(TOK_ASM_ ## x ## q, #x "q") \
 979  DEF(TOK_ASM_ ## x, #x)
 980 # define DEF_BWLX DEF_BWLQ
 981 # define DEF_WLX DEF_WLQ
 982 /* number of sizes + 1 */
 983 # define NBWLX 5
 984 #else
 985 # define DEF_BWLX DEF_BWL
 986 # define DEF_WLX DEF_WL
 987 /* number of sizes + 1 */
 988 # define NBWLX 4
 989 #endif
 990
 991 #define DEF_FP1(x) \
 992  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 993  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 994  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 995  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 996
 997 #define DEF_FP(x) \
 998  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 999  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
1000  DEF_FP1(x)
1001
1002 #define DEF_ASMTEST(x,suffix) \
1003  DEF_ASM(x ## o ## suffix) \
1004  DEF_ASM(x ## no ## suffix) \
1005  DEF_ASM(x ## b ## suffix) \
1006  DEF_ASM(x ## c ## suffix) \
1007  DEF_ASM(x ## nae ## suffix) \
1008  DEF_ASM(x ## nb ## suffix) \
1009  DEF_ASM(x ## nc ## suffix) \
1010  DEF_ASM(x ## ae ## suffix) \
1011  DEF_ASM(x ## e ## suffix) \
1012  DEF_ASM(x ## z ## suffix) \
1013  DEF_ASM(x ## ne ## suffix) \
1014  DEF_ASM(x ## nz ## suffix) \
1015  DEF_ASM(x ## be ## suffix) \
1016  DEF_ASM(x ## na ## suffix) \
1017  DEF_ASM(x ## nbe ## suffix) \
1018  DEF_ASM(x ## a ## suffix) \
1019  DEF_ASM(x ## s ## suffix) \
1020  DEF_ASM(x ## ns ## suffix) \
1021  DEF_ASM(x ## p ## suffix) \
1022  DEF_ASM(x ## pe ## suffix) \
1023  DEF_ASM(x ## np ## suffix) \
1024  DEF_ASM(x ## po ## suffix) \
1025  DEF_ASM(x ## l ## suffix) \
1026  DEF_ASM(x ## nge ## suffix) \
1027  DEF_ASM(x ## nl ## suffix) \
1028  DEF_ASM(x ## ge ## suffix) \
1029  DEF_ASM(x ## le ## suffix) \
1030  DEF_ASM(x ## ng ## suffix) \
1031  DEF_ASM(x ## nle ## suffix) \
1032  DEF_ASM(x ## g ## suffix)
1033
1034 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
1035
1036 enum tcc_token {
1037     TOK_LAST = TOK_IDENT - 1
1038 #define DEF(id, str) ,id
1039 #include "tcctok.h"
1040 #undef DEF
1041 };
1042
1043 #define TOK_UIDENT TOK_DEFINE
1044
1045 /* space exlcuding newline */
1046 static inline int is_space(int ch)
1047 {
1048     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
1049 }
1050
1051 static inline int isid(int c)
1052 {
1053     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
1054 }
1055
1056 static inline int isnum(int c)
1057 {
1058     return c >= '0' && c <= '9';
1059 }
1060
1061 static inline int isoct(int c)
1062 {
1063     return c >= '0' && c <= '7';
1064 }
1065
1066 static inline int toup(int c)
1067 {
1068     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
1069 }
1070
1071 #ifndef PUB_FUNC
1072 # define PUB_FUNC
1073 #endif
1074
1075 #ifdef ONE_SOURCE
1076 #define ST_INLN static inline
1077 #define ST_FUNC static
1078 #define ST_DATA static
1079 #else
1080 #define ST_INLN
1081 #define ST_FUNC
1082 #define ST_DATA extern
1083 #endif
1084
1085 /* ------------ libtcc.c ------------ */
1086
1087 /* use GNU C extensions */
1088 ST_DATA int gnu_ext;
1089 /* use Tiny C extensions */
1090 ST_DATA int tcc_ext;
1091 /* XXX: get rid of this ASAP */
1092 ST_DATA struct TCCState *tcc_state;
1093
1094 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
1095 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
1096 #define AFF_PREPROCESS      0x0004 /* preprocess file */
1097
1098 /* public functions currently used by the tcc main function */
1099 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1100 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1101 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1102 PUB_FUNC char *tcc_basename(const char *name);
1103 PUB_FUNC char *tcc_fileextension (const char *name);
1104
1105 #ifndef MEM_DEBUG
1106 PUB_FUNC void tcc_free(void *ptr);
1107 PUB_FUNC void *tcc_malloc(unsigned long size);
1108 PUB_FUNC void *tcc_mallocz(unsigned long size);
1109 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1110 PUB_FUNC char *tcc_strdup(const char *str);
1111 #else
1112 #define tcc_free(ptr)           tcc_free_debug(ptr)
1113 #define tcc_malloc(size)        tcc_malloc_debug(size, __FILE__, __LINE__)
1114 #define tcc_mallocz(size)       tcc_mallocz_debug(size, __FILE__, __LINE__)
1115 #define tcc_realloc(ptr,size)   tcc_realloc_debug(ptr, size, __FILE__, __LINE__)
1116 #define tcc_strdup(str)         tcc_strdup_debug(str, __FILE__, __LINE__)
1117 PUB_FUNC void tcc_free_debug(void *ptr);
1118 PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line);
1119 PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line);
1120 PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line);
1121 PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line);
1122 #endif
1123
1124 #define free(p) use_tcc_free(p)
1125 #define malloc(s) use_tcc_malloc(s)
1126 #define realloc(p, s) use_tcc_realloc(p, s)
1127 #undef strdup
1128 #define strdup(s) use_tcc_strdup(s)
1129 PUB_FUNC void tcc_memstats(int bench);
1130 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1131 PUB_FUNC NORETURN void tcc_error(const char *fmt, ...);
1132 PUB_FUNC void tcc_warning(const char *fmt, ...);
1133
1134 /* other utilities */
1135 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1136 ST_FUNC void dynarray_reset(void *pp, int *n);
1137 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1138 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1139 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1140 ST_FUNC void cstr_new(CString *cstr);
1141 ST_FUNC void cstr_free(CString *cstr);
1142 ST_FUNC void cstr_reset(CString *cstr);
1143
1144 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1145 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1146 ST_FUNC void *section_ptr_add(Section *sec, addr_t size);
1147 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1148 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1149
1150 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1151 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1152 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1153 ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend);
1154
1155 ST_INLN void sym_free(Sym *sym);
1156 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1157 ST_FUNC Sym *sym_find2(Sym *s, int v);
1158 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1159 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1160 ST_INLN Sym *struct_find(int v);
1161 ST_INLN Sym *sym_find(int v);
1162 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1163
1164 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1165 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1166 ST_FUNC void tcc_close(void);
1167
1168 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype);
1169 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1170
1171 #ifndef TCC_TARGET_PE
1172 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1173 #endif
1174
1175 ST_FUNC void tcc_add_pragma_libs(TCCState *s1);
1176 PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f);
1177
1178 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1179 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1180 PUB_FUNC void tcc_set_environment(TCCState *s);
1181
1182 /* ------------ tccpp.c ------------ */
1183
1184 ST_DATA struct BufferedFile *file;
1185 ST_DATA int ch, tok;
1186 ST_DATA CValue tokc;
1187 ST_DATA const int *macro_ptr;
1188 ST_DATA int parse_flags;
1189 ST_DATA int tok_flags;
1190 ST_DATA CString tokcstr; /* current parsed string, if any */
1191
1192 /* display benchmark infos */
1193 ST_DATA int total_lines;
1194 ST_DATA int total_bytes;
1195 ST_DATA int tok_ident;
1196 ST_DATA TokenSym **table_ident;
1197
1198 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1199 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1200 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1201 #define TOK_FLAG_EOF   0x0008 /* end of file */
1202
1203 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1204 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1205 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1206                                         token. line feed is also
1207                                         returned at eof */
1208 #define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */
1209 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1210 #define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */
1211 #define PARSE_FLAG_TOK_STR    0x0040 /* return parsed strings instead of TOK_PPSTR */
1212
1213 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1214 ST_FUNC const char *get_tok_str(int v, CValue *cv);
1215 ST_FUNC void begin_macro(TokenString *str, int alloc);
1216 ST_FUNC void end_macro(void);
1217 ST_FUNC void save_parse_state(ParseState *s);
1218 ST_FUNC void restore_parse_state(ParseState *s);
1219 ST_INLN void tok_str_new(TokenString *s);
1220 ST_FUNC void tok_str_free(int *str);
1221 ST_FUNC void tok_str_add(TokenString *s, int t);
1222 ST_FUNC void tok_str_add_tok(TokenString *s);
1223 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1224 ST_FUNC void define_undef(Sym *s);
1225 ST_INLN Sym *define_find(int v);
1226 ST_FUNC void free_defines(Sym *b);
1227 ST_FUNC void print_defines(void);
1228 ST_FUNC Sym *label_find(int v);
1229 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1230 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1231 ST_FUNC void parse_define(void);
1232 ST_FUNC void preprocess(int is_bof);
1233 ST_FUNC void next_nomacro(void);
1234 ST_FUNC void next(void);
1235 ST_INLN void unget_tok(int last_tok);
1236 ST_FUNC void preprocess_init(TCCState *s1);
1237 ST_FUNC void preprocess_new(void);
1238 ST_FUNC void preprocess_delete(void);
1239 ST_FUNC int tcc_preprocess(TCCState *s1);
1240 ST_FUNC void skip(int c);
1241 ST_FUNC NORETURN void expect(const char *msg);
1242
1243 /* ------------ tccgen.c ------------ */
1244
1245 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1246 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1247 #ifdef CONFIG_TCC_ASM
1248 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1249 #endif
1250 #ifdef CONFIG_TCC_BCHECK
1251 /* bound check related sections */
1252 ST_DATA Section *bounds_section; /* contains global data bound description */
1253 ST_DATA Section *lbounds_section; /* contains local data bound description */
1254 #endif
1255 /* symbol sections */
1256 ST_DATA Section *symtab_section, *strtab_section;
1257 /* debug sections */
1258 ST_DATA Section *stab_section, *stabstr_section;
1259
1260 #define SYM_POOL_NB (8192 / sizeof(Sym))
1261 ST_DATA Sym *sym_free_first;
1262 ST_DATA void **sym_pools;
1263 ST_DATA int nb_sym_pools;
1264
1265 ST_DATA Sym *global_stack;
1266 ST_DATA Sym *local_stack;
1267 ST_DATA Sym *local_label_stack;
1268 ST_DATA Sym *global_label_stack;
1269 ST_DATA Sym *define_stack;
1270 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1271 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop;
1272 #define vstack  (__vstack + 1)
1273 ST_DATA int rsym, anon_sym, ind, loc;
1274
1275 ST_DATA int const_wanted; /* true if constant wanted */
1276 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1277 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1278 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1279 ST_DATA int func_var; /* true if current function is variadic */
1280 ST_DATA int func_vc;
1281 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1282 ST_DATA const char *funcname;
1283
1284 ST_FUNC void check_vstack(void);
1285 ST_INLN int is_float(int t);
1286 ST_FUNC int ieee_finite(double d);
1287 ST_FUNC void test_lvalue(void);
1288 ST_FUNC void swap(int *p, int *q);
1289 ST_FUNC void vpushi(int v);
1290 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1291 ST_FUNC void vset(CType *type, int r, int v);
1292 ST_FUNC void vswap(void);
1293 ST_FUNC void vpush_global_sym(CType *type, int v);
1294 ST_FUNC void vrote(SValue *e, int n);
1295 ST_FUNC void vrott(int n);
1296 ST_FUNC void vrotb(int n);
1297 #ifdef TCC_TARGET_ARM
1298 ST_FUNC int get_reg_ex(int rc, int rc2);
1299 ST_FUNC void lexpand_nr(void);
1300 #endif
1301 ST_FUNC void vpushv(SValue *v);
1302 ST_FUNC void save_reg(int r);
1303 ST_FUNC int get_reg(int rc);
1304 ST_FUNC void save_regs(int n);
1305 ST_FUNC void gaddrof(void);
1306 ST_FUNC int gv(int rc);
1307 ST_FUNC void gv2(int rc1, int rc2);
1308 ST_FUNC void vpop(void);
1309 ST_FUNC void gen_op(int op);
1310 ST_FUNC int type_size(CType *type, int *a);
1311 ST_FUNC void mk_pointer(CType *type);
1312 ST_FUNC void vstore(void);
1313 ST_FUNC void inc(int post, int c);
1314 ST_FUNC void parse_asm_str(CString *astr);
1315 ST_FUNC int lvalue_type(int t);
1316 ST_FUNC void indir(void);
1317 ST_FUNC void unary(void);
1318 ST_FUNC void expr_prod(void);
1319 ST_FUNC void expr_sum(void);
1320 ST_FUNC void gexpr(void);
1321 ST_FUNC int expr_const(void);
1322 ST_FUNC void gen_inline_functions(void);
1323 ST_FUNC void decl(int l);
1324 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1325 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1326 #endif
1327 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1328 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1329 #endif
1330
1331 /* ------------ tccelf.c ------------ */
1332
1333 #define TCC_OUTPUT_FORMAT_ELF    0 /* default output format: ELF */
1334 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1335 #define TCC_OUTPUT_FORMAT_COFF   2 /* COFF */
1336
1337 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1338
1339 typedef struct {
1340     unsigned int n_strx;         /* index into string table of name */
1341     unsigned char n_type;         /* type of symbol */
1342     unsigned char n_other;        /* misc info (usually empty) */
1343     unsigned short n_desc;        /* description field */
1344     unsigned int n_value;        /* value of symbol */
1345 } Stab_Sym;
1346
1347 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);
1348
1349 ST_FUNC int put_elf_str(Section *s, const char *sym);
1350 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1351 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1352 ST_FUNC int find_elf_sym(Section *s, const char *name);
1353 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1354 ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend);
1355
1356 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1357 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1358 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1359 ST_FUNC void put_stabd(int type, int other, int desc);
1360
1361 ST_FUNC void relocate_common_syms(void);
1362 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1363 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1364 ST_FUNC void relocate_plt(TCCState *s1);
1365
1366 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1367 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1368 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1369 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1370
1371 ST_FUNC void build_got_entries(TCCState *s1);
1372 ST_FUNC void tcc_add_runtime(TCCState *s1);
1373
1374 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1375 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1376 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1377 #endif
1378
1379 #ifndef TCC_TARGET_PE
1380 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1381 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1382 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1383 ST_FUNC void minp(void);
1384 ST_INLN void inp(void);
1385 ST_FUNC int handle_eob(void);
1386 #endif
1387
1388 /* ------------ xxx-gen.c ------------ */
1389
1390 ST_DATA const int reg_classes[NB_REGS];
1391
1392 ST_FUNC void gsym_addr(int t, int a);
1393 ST_FUNC void gsym(int t);
1394 ST_FUNC void load(int r, SValue *sv);
1395 ST_FUNC void store(int r, SValue *v);
1396 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize);
1397 ST_FUNC void gfunc_call(int nb_args);
1398 ST_FUNC void gfunc_prolog(CType *func_type);
1399 ST_FUNC void gfunc_epilog(void);
1400 ST_FUNC int gjmp(int t);
1401 ST_FUNC void gjmp_addr(int a);
1402 ST_FUNC int gtst(int inv, int t);
1403 ST_FUNC void gen_opi(int op);
1404 ST_FUNC void gen_opf(int op);
1405 ST_FUNC void gen_cvt_ftoi(int t);
1406 ST_FUNC void gen_cvt_ftof(int t);
1407 ST_FUNC void ggoto(void);
1408 #ifndef TCC_TARGET_C67
1409 ST_FUNC void o(unsigned int c);
1410 #endif
1411 #ifndef TCC_TARGET_ARM
1412 ST_FUNC void gen_cvt_itof(int t);
1413 #endif
1414 ST_FUNC void gen_vla_sp_save(int addr);
1415 ST_FUNC void gen_vla_sp_restore(int addr);
1416 ST_FUNC void gen_vla_alloc(CType *type, int align);
1417
1418 /* ------------ i386-gen.c ------------ */
1419 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1420 ST_FUNC void g(int c);
1421 ST_FUNC int oad(int c, int s);
1422 ST_FUNC void gen_le16(int c);
1423 ST_FUNC void gen_le32(int c);
1424 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1425 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1426 #endif
1427
1428 #ifdef CONFIG_TCC_BCHECK
1429 ST_FUNC void gen_bounded_ptr_add(void);
1430 ST_FUNC void gen_bounded_ptr_deref(void);
1431 #endif
1432
1433 /* ------------ x86_64-gen.c ------------ */
1434 #ifdef TCC_TARGET_X86_64
1435 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1436 ST_FUNC void gen_opl(int op);
1437 #endif
1438
1439 /* ------------ arm-gen.c ------------ */
1440 #ifdef TCC_TARGET_ARM
1441 #if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP)
1442 ST_FUNC char *default_elfinterp(struct TCCState *s);
1443 #endif
1444 ST_FUNC void arm_init(struct TCCState *s);
1445 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1446 ST_FUNC void gen_cvt_itof1(int t);
1447 #endif
1448
1449 /* ------------ arm64-gen.c ------------ */
1450 #ifdef TCC_TARGET_ARM64
1451 ST_FUNC void gen_cvt_sxtw(void);
1452 ST_FUNC void gen_opl(int op);
1453 ST_FUNC void greturn(void);
1454 ST_FUNC void gen_va_start(void);
1455 ST_FUNC void gen_va_arg(CType *t);
1456 ST_FUNC void gen_clear_cache(void);
1457 #endif
1458
1459 /* ------------ c67-gen.c ------------ */
1460 #ifdef TCC_TARGET_C67
1461 #endif
1462
1463 /* ------------ tcccoff.c ------------ */
1464
1465 #ifdef TCC_TARGET_COFF
1466 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1467 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1468 #endif
1469
1470 /* ------------ tccasm.c ------------ */
1471 ST_FUNC void asm_instr(void);
1472 ST_FUNC void asm_global_instr(void);
1473 #ifdef CONFIG_TCC_ASM
1474 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1475 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1476 ST_FUNC int asm_int_expr(TCCState *s1);
1477 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1478 /* ------------ i386-asm.c ------------ */
1479 ST_FUNC void gen_expr32(ExprValue *pe);
1480 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1481 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1482 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1483 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1484 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1485 #endif
1486
1487 /* ------------ tccpe.c -------------- */
1488 #ifdef TCC_TARGET_PE
1489 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1490 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1491 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1492 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1493 #ifdef TCC_TARGET_X86_64
1494 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1495 #endif
1496 /* symbol properties stored in Elf32_Sym->st_other */
1497 # define ST_PE_EXPORT 0x10
1498 # define ST_PE_IMPORT 0x20
1499 # define ST_PE_STDCALL 0x40
1500 #endif
1501
1502 /* ------------ tccrun.c ----------------- */
1503 #ifdef TCC_IS_NATIVE
1504 #ifdef CONFIG_TCC_STATIC
1505 #define RTLD_LAZY       0x001
1506 #define RTLD_NOW        0x002
1507 #define RTLD_GLOBAL     0x100
1508 #define RTLD_DEFAULT    NULL
1509 /* dummy function for profiling */
1510 ST_FUNC void *dlopen(const char *filename, int flag);
1511 ST_FUNC void dlclose(void *p);
1512 ST_FUNC const char *dlerror(void);
1513 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1514 #elif !defined _WIN32
1515 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1516 #endif
1517
1518 #ifdef CONFIG_TCC_BACKTRACE
1519 ST_DATA int rt_num_callers;
1520 ST_DATA const char **rt_bound_error_msg;
1521 ST_DATA void *rt_prog_main;
1522 ST_FUNC void tcc_set_num_callers(int n);
1523 #endif
1524 #endif
1525
1526 /********************************************************/
1527 #undef ST_DATA
1528 #ifdef ONE_SOURCE
1529 #define ST_DATA static
1530 #else
1531 #define ST_DATA
1532 #endif
1533 /********************************************************/
1534 #endif /* _TCC_H */