tcc.h

   1 /*
   2  *  TCC - Tiny C Compiler
   3  *
   4  *  Copyright (c) 2001-2004 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef _TCC_H
  22 #define _TCC_H
  23
  24 #define _GNU_SOURCE
  25 #include "config.h"
  26
  27 #ifdef CONFIG_TCCBOOT
  28 #include "tccboot.h"
  29 #define CONFIG_TCC_STATIC
  30 #else
  31
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <stdarg.h>
  35 #include <string.h>
  36 #include <errno.h>
  37 #include <math.h>
  38 #include <signal.h>
  39 #include <fcntl.h>
  40 #include <setjmp.h>
  41 #include <time.h>
  42
  43 #ifdef CONFIG_TCCASSERT
  44 #include <assert.h>
  45 #define TCC_ASSERT(ex) assert(ex)
  46 #else
  47 #define TCC_ASSERT(ex)
  48 #endif
  49
  50 #ifndef _WIN32
  51 # include <unistd.h>
  52 # include <sys/time.h>
  53 # include <sys/ucontext.h>
  54 # include <sys/mman.h>
  55 # ifndef CONFIG_TCC_STATIC
  56 #  include <dlfcn.h>
  57 # endif
  58 #else
  59 # include <windows.h>
  60 # include <sys/timeb.h>
  61 # include <io.h> /* open, close etc. */
  62 # include <direct.h> /* getcwd */
  63 # ifdef __GNUC__
  64 #  include <stdint.h>
  65 # else
  66    typedef UINT_PTR uintptr_t;
  67 # endif
  68 # define inline __inline
  69 # define inp next_inp
  70 # ifdef LIBTCC_AS_DLL
  71 #  define LIBTCCAPI __declspec(dllexport)
  72 #  define PUB_FUNC LIBTCCAPI
  73 # endif
  74 #endif
  75
  76 #endif /* !CONFIG_TCCBOOT */
  77
  78 #ifndef O_BINARY
  79 # define O_BINARY 0
  80 #endif
  81
  82 #include "elf.h"
  83 #ifdef TCC_TARGET_X86_64
  84 # define ELFCLASSW ELFCLASS64
  85 # define ElfW(type) Elf##64##_##type
  86 # define ELFW(type) ELF##64##_##type
  87 # define ElfW_Rel ElfW(Rela)
  88 # define SHT_RELX SHT_RELA
  89 # define REL_SECTION_FMT ".rela%s"
  90 /* XXX: DLL with PLT would only work with x86-64 for now */
  91 # define TCC_OUTPUT_DLL_WITH_PLT
  92 #else
  93 # define ELFCLASSW ELFCLASS32
  94 # define ElfW(type) Elf##32##_##type
  95 # define ELFW(type) ELF##32##_##type
  96 # define ElfW_Rel ElfW(Rel)
  97 # define SHT_RELX SHT_REL
  98 # define REL_SECTION_FMT ".rel%s"
  99 #endif
 100
 101 /* target address type */
 102 #define addr_t ElfW(Addr)
 103
 104 #include "stab.h"
 105 #include "libtcc.h"
 106
 107 /* parser debug */
 108 /* #define PARSE_DEBUG */
 109 /* preprocessor debug */
 110 /* #define PP_DEBUG */
 111 /* include file debug */
 112 /* #define INC_DEBUG */
 113 /* memory leak debug */
 114 /* #define MEM_DEBUG */
 115 /* assembler debug */
 116 /* #define ASM_DEBUG */
 117
 118 /* target selection */
 119 /* #define TCC_TARGET_I386   *//* i386 code generator */
 120 /* #define TCC_TARGET_ARM    *//* ARMv4 code generator */
 121 /* #define TCC_TARGET_C67    *//* TMS320C67xx code generator */
 122 /* #define TCC_TARGET_X86_64 *//* x86-64 code generator */
 123
 124 /* default target is I386 */
 125 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 126     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 127 #define TCC_TARGET_I386
 128 #endif
 129
 130 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 131     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64) && \
 132     !defined(CONFIG_USE_LIBGCC)
 133 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 134 #endif
 135
 136 /* define it to include assembler support */
 137 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 138 #define CONFIG_TCC_ASM
 139 #endif
 140
 141 /* object format selection */
 142 #if defined(TCC_TARGET_C67)
 143 #define TCC_TARGET_COFF
 144 #endif
 145
 146 /* only native compiler supports -run */
 147 #if defined _WIN32 == defined TCC_TARGET_PE
 148 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 149 #  define TCC_IS_NATIVE
 150 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 151 #  define TCC_IS_NATIVE
 152 # elif defined __arm__ && defined TCC_TARGET_ARM
 153 #  define TCC_IS_NATIVE
 154 # endif
 155 #endif
 156
 157 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 158 # define CONFIG_TCC_BACKTRACE
 159 #endif
 160
 161 /* ------------ path configuration ------------ */
 162
 163 #ifndef CONFIG_SYSROOT
 164 # define CONFIG_SYSROOT ""
 165 #endif
 166 #ifndef CONFIG_TCCDIR
 167 # define CONFIG_TCCDIR "."
 168 #endif
 169 #ifndef CONFIG_LDDIR
 170 # define CONFIG_LDDIR "lib"
 171 #endif
 172
 173 #ifdef CONFIG_MULTIARCHDIR
 174 # define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR
 175 # define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s
 176 #else
 177 # define USE_MUADIR(s) s
 178 # define ALSO_MUADIR(s) s
 179 #endif
 180
 181 /* path to find crt1.o, crti.o and crtn.o */
 182 #ifndef CONFIG_TCC_CRTPREFIX
 183 # define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR)
 184 #endif
 185
 186 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 187
 188 /* system include paths */
 189 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 190 # ifdef TCC_TARGET_PE
 191 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 192 # else
 193 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 194         ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \
 195     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") \
 196     ":" "{B}/include"
 197 # endif
 198 #endif
 199
 200 /* library search paths */
 201 #ifndef CONFIG_TCC_LIBPATHS
 202 # ifdef TCC_TARGET_PE
 203 #  define CONFIG_TCC_LIBPATHS "{B}/lib"
 204 # else
 205 #  define CONFIG_TCC_LIBPATHS \
 206         ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \
 207     ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \
 208     ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR)
 209 # endif
 210 #endif
 211
 212 /* name of ELF interpreter */
 213 #ifndef CONFIG_TCC_ELFINTERP
 214 # if defined __FreeBSD__
 215 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 216 # elif defined __FreeBSD_kernel__
 217 #  if defined(TCC_TARGET_X86_64)
 218 #   define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1"
 219 #  else
 220 #   define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
 221 #  endif
 222 # elif defined __GNU__
 223 #  define CONFIG_TCC_ELFINTERP "/lib/ld.so"
 224 # elif defined(TCC_TARGET_X86_64)
 225 #  define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
 226 # elif defined(TCC_UCLIBC)
 227 #  define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0"
 228 # elif defined(TCC_TARGET_PE)
 229 #  define CONFIG_TCC_ELFINTERP "-"
 230 # elif !defined(TCC_ARM_EABI)
 231 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
 232 # endif
 233 #endif
 234
 235 /* var elf_interp dans *-gen.c */
 236 #ifdef CONFIG_TCC_ELFINTERP
 237 # define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP
 238 #else
 239 # define DEFAULT_ELFINTERP(s) default_elfinterp(s)
 240 #endif
 241
 242 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 243 #define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1"
 244
 245 /* -------------------------------------------- */
 246 /* include the target specific definitions */
 247
 248 #define TARGET_DEFS_ONLY
 249 #ifdef TCC_TARGET_I386
 250 # include "i386-gen.c"
 251 #endif
 252 #ifdef TCC_TARGET_X86_64
 253 # include "x86_64-gen.c"
 254 #endif
 255 #ifdef TCC_TARGET_ARM
 256 # include "arm-gen.c"
 257 #endif
 258 #ifdef TCC_TARGET_C67
 259 # include "coff.h"
 260 # include "c67-gen.c"
 261 #endif
 262 #undef TARGET_DEFS_ONLY
 263
 264 /* -------------------------------------------- */
 265
 266 #define INCLUDE_STACK_SIZE  32
 267 #define IFDEF_STACK_SIZE    64
 268 #define VSTACK_SIZE         256
 269 #define STRING_MAX_SIZE     1024
 270 #define PACK_STACK_SIZE     8
 271
 272 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 273 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 274 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 275
 276 /* token symbol management */
 277 typedef struct TokenSym {
 278     struct TokenSym *hash_next;
 279     struct Sym *sym_define; /* direct pointer to define */
 280     struct Sym *sym_label; /* direct pointer to label */
 281     struct Sym *sym_struct; /* direct pointer to structure */
 282     struct Sym *sym_identifier; /* direct pointer to identifier */
 283     int tok; /* token number */
 284     int len;
 285     char str[1];
 286 } TokenSym;
 287
 288 #ifdef TCC_TARGET_PE
 289 typedef unsigned short nwchar_t;
 290 #else
 291 typedef int nwchar_t;
 292 #endif
 293
 294 typedef struct CString {
 295     int size; /* size in bytes */
 296     void *data; /* either 'char *' or 'nwchar_t *' */
 297     int size_allocated;
 298     void *data_allocated; /* if non NULL, data has been malloced */
 299 } CString;
 300
 301 /* type definition */
 302 typedef struct CType {
 303     int t;
 304     struct Sym *ref;
 305 } CType;
 306
 307 /* constant value */
 308 typedef union CValue {
 309     long double ld;
 310     double d;
 311     float f;
 312     int i;
 313     unsigned int ui;
 314     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 315     long long ll;
 316     unsigned long long ull;
 317     struct CString *cstr;
 318     void *ptr;
 319     int tab[LDOUBLE_SIZE/4];
 320 } CValue;
 321
 322 /* value on stack */
 323 typedef struct SValue {
 324     CType type;      /* type */
 325     unsigned short r;      /* register + flags */
 326     unsigned short r2;     /* second register, used for 'long long'
 327                               type. If not used, set to VT_CONST */
 328     CValue c;              /* constant, if VT_CONST */
 329     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 330 } SValue;
 331
 332 struct Attribute {
 333     unsigned
 334         func_call     : 3, /* calling convention (0..5), see below */
 335         aligned       : 5, /* alignement (0..16) */
 336         packed        : 1,
 337         func_export   : 1,
 338         func_import   : 1,
 339         func_args     : 5,
 340         func_proto    : 1,
 341         mode          : 4,
 342         weak          : 1,
 343         fill          : 10; // 10 bits left to fit well in union below
 344 };
 345
 346 /* GNUC attribute definition */
 347 typedef struct AttributeDef {
 348     struct Attribute a;
 349     struct Section *section;
 350     int alias_target;    /* token */
 351 } AttributeDef;
 352
 353 /* symbol management */
 354 typedef struct Sym {
 355     int v;    /* symbol token */
 356     char *asm_label;    /* associated asm label */
 357     union {
 358         long r;    /* associated register */
 359         struct Attribute a;
 360     };
 361     union {
 362         long c;    /* associated number */
 363         int *d;   /* define token stream */
 364     };
 365     CType type;    /* associated type */
 366     union {
 367         struct Sym *next; /* next related symbol */
 368         long jnext; /* next jump label */
 369     };
 370     struct Sym *prev; /* prev symbol in stack */
 371     struct Sym *prev_tok; /* previous symbol for this token */
 372 } Sym;
 373
 374 /* section definition */
 375 /* XXX: use directly ELF structure for parameters ? */
 376 /* special flag to indicate that the section should not be linked to
 377    the other ones */
 378 #define SHF_PRIVATE 0x80000000
 379
 380 /* special flag, too */
 381 #define SECTION_ABS ((void *)1)
 382
 383 typedef struct Section {
 384     unsigned long data_offset; /* current data offset */
 385     unsigned char *data;       /* section data */
 386     unsigned long data_allocated; /* used for realloc() handling */
 387     int sh_name;             /* elf section name (only used during output) */
 388     int sh_num;              /* elf section number */
 389     int sh_type;             /* elf section type */
 390     int sh_flags;            /* elf section flags */
 391     int sh_info;             /* elf section info */
 392     int sh_addralign;        /* elf section alignment */
 393     int sh_entsize;          /* elf entry size */
 394     unsigned long sh_size;   /* section size (only used during output) */
 395     addr_t sh_addr;          /* address at which the section is relocated */
 396     unsigned long sh_offset; /* file offset */
 397     int nb_hashed_syms;      /* used to resize the hash table */
 398     struct Section *link;    /* link to another section */
 399     struct Section *reloc;   /* corresponding section for relocation, if any */
 400     struct Section *hash;     /* hash table for symbols */
 401     struct Section *next;
 402     char name[1];           /* section name */
 403 } Section;
 404
 405 typedef struct DLLReference {
 406     int level;
 407     void *handle;
 408     char name[1];
 409 } DLLReference;
 410
 411 /* -------------------------------------------------- */
 412
 413 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 414 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 415 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 416
 417 #define VLA_SP_LOC_SET     0x01 /* Location of SP on stack has been allocated */
 418 #define VLA_SP_SAVED       0x02 /* SP has been saved to slot already */
 419 #define VLA_NEED_NEW_FRAME 0x04 /* Needs new frame for next VLA */
 420 #define VLA_IN_SCOPE       0x08 /* One or more VLAs are in scope */
 421 #define VLA_SCOPE_FLAGS    (VLA_SP_SAVED|VLA_NEED_NEW_FRAME|VLA_IN_SCOPE) /* Flags which are saved and restored upon entering and exiting a block */
 422
 423 /* stored in 'Sym.c' field */
 424 #define FUNC_NEW       1 /* ansi function prototype */
 425 #define FUNC_OLD       2 /* old function prototype */
 426 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 427
 428 /* stored in 'Sym.r' field */
 429 #define FUNC_CDECL     0 /* standard c call */
 430 #define FUNC_STDCALL   1 /* pascal c call */
 431 #define FUNC_FASTCALL1 2 /* first param in %eax */
 432 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 433 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 434 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 435
 436 /* field 'Sym.t' for macros */
 437 #define MACRO_OBJ      0 /* object like macro */
 438 #define MACRO_FUNC     1 /* function like macro */
 439
 440 /* field 'Sym.r' for C labels */
 441 #define LABEL_DEFINED  0 /* label is defined */
 442 #define LABEL_FORWARD  1 /* label is forward defined */
 443 #define LABEL_DECLARED 2 /* label is declared but never used */
 444
 445 /* type_decl() types */
 446 #define TYPE_ABSTRACT  1 /* type without variable */
 447 #define TYPE_DIRECT    2 /* type with variable */
 448
 449 #define IO_BUF_SIZE 8192
 450
 451 typedef struct BufferedFile {
 452     uint8_t *buf_ptr;
 453     uint8_t *buf_end;
 454     int fd;
 455     struct BufferedFile *prev;
 456     int line_num;    /* current line number - here to simplify code */
 457     int ifndef_macro;  /* #ifndef macro / #endif search */
 458     int ifndef_macro_saved; /* saved ifndef_macro */
 459     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 460     char filename[1024];    /* filename */
 461     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 462 } BufferedFile;
 463
 464 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 465 #define CH_EOF   (-1)   /* end of file */
 466
 467 /* parsing state (used to save parser state to reparse part of the
 468    source several times) */
 469 typedef struct ParseState {
 470     const int *macro_ptr;
 471     int line_num;
 472     int tok;
 473     CValue tokc;
 474 } ParseState;
 475
 476 /* used to record tokens */
 477 typedef struct TokenString {
 478     int *str;
 479     int len;
 480     int allocated_len;
 481     int last_line_num;
 482 } TokenString;
 483
 484 /* inline functions */
 485 typedef struct InlineFunc {
 486     int *token_str;
 487     Sym *sym;
 488     char filename[1];
 489 } InlineFunc;
 490
 491 /* include file cache, used to find files faster and also to eliminate
 492    inclusion if the include file is protected by #ifndef ... #endif */
 493 typedef struct CachedInclude {
 494     int ifndef_macro;
 495     int hash_next; /* -1 if none */
 496     char filename[1]; /* path specified in #include */
 497 } CachedInclude;
 498
 499 #define CACHED_INCLUDES_HASH_SIZE 512
 500
 501 #ifdef CONFIG_TCC_ASM
 502 typedef struct ExprValue {
 503     uint32_t v;
 504     Sym *sym;
 505 } ExprValue;
 506
 507 #define MAX_ASM_OPERANDS 30
 508 typedef struct ASMOperand {
 509     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 510     char *constraint;
 511     char asm_str[16]; /* computed asm string for operand */
 512     SValue *vt; /* C value of the expression */
 513     int ref_index; /* if >= 0, gives reference to a output constraint */
 514     int input_index; /* if >= 0, gives reference to an input constraint */
 515     int priority; /* priority, used to assign registers */
 516     int reg; /* if >= 0, register number used for this operand */
 517     int is_llong; /* true if double register value */
 518     int is_memory; /* true if memory operand */
 519     int is_rw;     /* for '+' modifier */
 520 } ASMOperand;
 521 #endif
 522
 523 struct sym_attr {
 524     unsigned long got_offset;
 525 #ifdef TCC_TARGET_ARM
 526     unsigned char plt_thumb_stub:1;
 527 #endif
 528 };
 529
 530 struct TCCState {
 531
 532     int verbose; /* if true, display some information during compilation */
 533     int nostdinc; /* if true, no standard headers are added */
 534     int nostdlib; /* if true, no standard libraries are added */
 535     int nocommon; /* if true, do not use common symbols for .bss data */
 536     int static_link; /* if true, static linking is performed */
 537     int rdynamic; /* if true, all symbols are exported */
 538     int symbolic; /* if true, resolve symbols in the current module first */
 539     int alacarte_link; /* if true, only link in referenced objects from archive */
 540
 541     char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */
 542     char *soname; /* as specified on the command line (-soname) */
 543     char *rpath; /* as specified on the command line (-Wl,-rpath=) */
 544
 545     /* output type, see TCC_OUTPUT_XXX */
 546     int output_type;
 547     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 548     int output_format;
 549
 550     /* C language options */
 551     int char_is_unsigned;
 552     int leading_underscore;
 553
 554     /* warning switches */
 555     int warn_write_strings;
 556     int warn_unsupported;
 557     int warn_error;
 558     int warn_none;
 559     int warn_implicit_function_declaration;
 560
 561     /* compile with debug symbol (and use them if error during execution) */
 562     int do_debug;
 563 #ifdef CONFIG_TCC_BCHECK
 564     /* compile with built-in memory and bounds checker */
 565     int do_bounds_check;
 566 #endif
 567 #ifdef TCC_TARGET_ARM
 568     enum float_abi float_abi; /* float ABI of the generated code*/
 569 #endif
 570
 571     addr_t text_addr; /* address of text section */
 572     int has_text_addr;
 573
 574     unsigned long section_align; /* section alignment */
 575
 576     char *init_symbol; /* symbols to call at load-time (not used currently) */
 577     char *fini_symbol; /* symbols to call at unload-time (not used currently) */
 578
 579 #ifdef TCC_TARGET_I386
 580     int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */
 581 #endif
 582
 583     /* array of all loaded dlls (including those referenced by loaded dlls) */
 584     DLLReference **loaded_dlls;
 585     int nb_loaded_dlls;
 586
 587     /* include paths */
 588     char **include_paths;
 589     int nb_include_paths;
 590
 591     char **sysinclude_paths;
 592     int nb_sysinclude_paths;
 593
 594     /* library paths */
 595     char **library_paths;
 596     int nb_library_paths;
 597
 598     /* crt?.o object path */
 599     char **crt_paths;
 600     int nb_crt_paths;
 601
 602     /* error handling */
 603     void *error_opaque;
 604     void (*error_func)(void *opaque, const char *msg);
 605     int error_set_jmp_enabled;
 606     jmp_buf error_jmp_buf;
 607     int nb_errors;
 608
 609     /* output file for preprocessing (-E) */
 610     FILE *ppfp;
 611
 612     /* for -MD/-MF: collected dependencies for this compilation */
 613     char **target_deps;
 614     int nb_target_deps;
 615
 616     /* compilation */
 617     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 618     BufferedFile **include_stack_ptr;
 619
 620     int ifdef_stack[IFDEF_STACK_SIZE];
 621     int *ifdef_stack_ptr;
 622
 623     /* included files enclosed with #ifndef MACRO */
 624     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 625     CachedInclude **cached_includes;
 626     int nb_cached_includes;
 627
 628     /* #pragma pack stack */
 629     int pack_stack[PACK_STACK_SIZE];
 630     int *pack_stack_ptr;
 631
 632     /* inline functions are stored as token lists and compiled last
 633        only if referenced */
 634     struct InlineFunc **inline_fns;
 635     int nb_inline_fns;
 636
 637     /* sections */
 638     Section **sections;
 639     int nb_sections; /* number of sections, including first dummy section */
 640
 641     Section **priv_sections;
 642     int nb_priv_sections; /* number of private sections */
 643
 644     /* got & plt handling */
 645     Section *got;
 646     Section *plt;
 647     struct sym_attr *sym_attrs;
 648     int nb_sym_attrs;
 649     /* give the correspondance from symtab indexes to dynsym indexes */
 650     int *symtab_to_dynsym;
 651
 652     /* temporary dynamic symbol sections (for dll loading) */
 653     Section *dynsymtab_section;
 654     /* exported dynamic symbol section */
 655     Section *dynsym;
 656     /* copy of the gobal symtab_section variable */
 657     Section *symtab;
 658     /* tiny assembler state */
 659     Sym *asm_labels;
 660
 661 #ifdef TCC_TARGET_PE
 662     /* PE info */
 663     int pe_subsystem;
 664     unsigned pe_file_align;
 665     unsigned pe_stack_size;
 666 # ifdef TCC_TARGET_X86_64
 667     Section *uw_pdata;
 668     int uw_sym;
 669     unsigned uw_offs;
 670 # endif
 671 #endif
 672
 673 #ifdef TCC_IS_NATIVE
 674     const char *runtime_main;
 675     /* for tcc_relocate */
 676     void *runtime_mem;
 677 # ifdef HAVE_SELINUX
 678     void *write_mem;
 679     unsigned long mem_size;
 680 # endif
 681 # if !defined TCC_TARGET_PE && (defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM)
 682     /* write PLT and GOT here */
 683     char *runtime_plt_and_got;
 684     unsigned runtime_plt_and_got_offset;
 685 #  define TCC_HAS_RUNTIME_PLTGOT
 686 # endif
 687 #endif
 688
 689     /* used by main and tcc_parse_args only */
 690     char **files; /* files seen on command line */
 691     int nb_files; /* number thereof */
 692     int nb_libraries; /* number of libs thereof */
 693     char *outfile; /* output filename */
 694     char *option_m; /* only -m32/-m64 handled */
 695     int print_search_dirs; /* option */
 696     int option_r; /* option -r */
 697     int do_bench; /* option -bench */
 698     int gen_deps; /* option -MD  */
 699     char *deps_outfile; /* option -MF */
 700 };
 701
 702 /* The current value can be: */
 703 #define VT_VALMASK   0x003f  /* mask for value location, register or: */
 704 #define VT_CONST     0x0030  /* constant in vc (must be first non register value) */
 705 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 706 #define VT_LOCAL     0x0032  /* offset on stack */
 707 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 708 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 709 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 710 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 711 #define VT_LVAL      0x0100  /* var is an lvalue */
 712 #define VT_SYM       0x0200  /* a symbol value is added */
 713 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 714                                 char/short stored in integer registers) */
 715 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 716                                 dereferencing value */
 717 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 718                                 bounding function call point is in vc */
 719 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 720 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 721 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 722 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 723
 724 /* types */
 725 #define VT_BTYPE       0x000f  /* mask for basic type */
 726 #define VT_INT              0  /* integer type */
 727 #define VT_BYTE             1  /* signed byte type */
 728 #define VT_SHORT            2  /* short type */
 729 #define VT_VOID             3  /* void type */
 730 #define VT_PTR              4  /* pointer */
 731 #define VT_ENUM             5  /* enum definition */
 732 #define VT_FUNC             6  /* function type */
 733 #define VT_STRUCT           7  /* struct/union definition */
 734 #define VT_FLOAT            8  /* IEEE float */
 735 #define VT_DOUBLE           9  /* IEEE double */
 736 #define VT_LDOUBLE         10  /* IEEE long double */
 737 #define VT_BOOL            11  /* ISOC99 boolean type */
 738 #define VT_LLONG           12  /* 64 bit integer */
 739 #define VT_LONG            13  /* long integer (NEVER USED as type, only
 740                                   during parsing) */
 741 #define VT_QLONG           14  /* 128-bit integer. Only used for x86-64 ABI */
 742 #define VT_QFLOAT          15  /* 128-bit float. Only used for x86-64 ABI */
 743 #define VT_UNSIGNED    0x0010  /* unsigned type */
 744 #define VT_ARRAY       0x0020  /* array type (also has VT_PTR) */
 745 #define VT_BITFIELD    0x0040  /* bitfield modifier */
 746 #define VT_CONSTANT    0x0800  /* const modifier */
 747 #define VT_VOLATILE    0x1000  /* volatile modifier */
 748 #define VT_DEFSIGN     0x2000  /* signed type */
 749 #define VT_VLA     0x00020000  /* VLA type (also has VT_PTR and VT_ARRAY) */
 750
 751 /* storage */
 752 #define VT_EXTERN  0x00000080  /* extern definition */
 753 #define VT_STATIC  0x00000100  /* static variable */
 754 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 755 #define VT_INLINE  0x00000400  /* inline definition */
 756 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 757 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 758 #define VT_WEAK    0x00010000  /* weak symbol */
 759 #define VT_TLS     0x00040000  /* thread-local storage */
 760
 761 #define VT_STRUCT_SHIFT 19     /* shift for bitfield shift values (max: 32 - 2*6) */
 762
 763 /* type mask (except storage) */
 764 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 765 #define VT_TYPE (~(VT_STORAGE))
 766
 767 /* token values */
 768
 769 /* warning: the following compare tokens depend on i386 asm code */
 770 #define TOK_ULT 0x92
 771 #define TOK_UGE 0x93
 772 #define TOK_EQ  0x94
 773 #define TOK_NE  0x95
 774 #define TOK_ULE 0x96
 775 #define TOK_UGT 0x97
 776 #define TOK_Nset 0x98
 777 #define TOK_Nclear 0x99
 778 #define TOK_LT  0x9c
 779 #define TOK_GE  0x9d
 780 #define TOK_LE  0x9e
 781 #define TOK_GT  0x9f
 782
 783 #define TOK_LAND  0xa0
 784 #define TOK_LOR   0xa1
 785
 786 #define TOK_DEC   0xa2
 787 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 788 #define TOK_INC   0xa4
 789 #define TOK_UDIV  0xb0 /* unsigned division */
 790 #define TOK_UMOD  0xb1 /* unsigned modulo */
 791 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 792 #define TOK_CINT   0xb3 /* number in tokc */
 793 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 794 #define TOK_STR   0xb5 /* pointer to string in tokc */
 795 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 796 #define TOK_LCHAR    0xb7
 797 #define TOK_LSTR     0xb8
 798 #define TOK_CFLOAT   0xb9 /* float constant */
 799 #define TOK_LINENUM  0xba /* line number info */
 800 #define TOK_CDOUBLE  0xc0 /* double constant */
 801 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 802 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 803 #define TOK_ADDC1    0xc3 /* add with carry generation */
 804 #define TOK_ADDC2    0xc4 /* add with carry use */
 805 #define TOK_SUBC1    0xc5 /* add with carry generation */
 806 #define TOK_SUBC2    0xc6 /* add with carry use */
 807 #define TOK_CUINT    0xc8 /* unsigned int constant */
 808 #define TOK_CLLONG   0xc9 /* long long constant */
 809 #define TOK_CULLONG  0xca /* unsigned long long constant */
 810 #define TOK_ARROW    0xcb
 811 #define TOK_DOTS     0xcc /* three dots */
 812 #define TOK_SHR      0xcd /* unsigned shift right */
 813 #define TOK_PPNUM    0xce /* preprocessor number */
 814 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 815
 816 #define TOK_SHL   0x01 /* shift left */
 817 #define TOK_SAR   0x02 /* signed shift right */
 818
 819 /* assignement operators : normal operator or 0x80 */
 820 #define TOK_A_MOD 0xa5
 821 #define TOK_A_AND 0xa6
 822 #define TOK_A_MUL 0xaa
 823 #define TOK_A_ADD 0xab
 824 #define TOK_A_SUB 0xad
 825 #define TOK_A_DIV 0xaf
 826 #define TOK_A_XOR 0xde
 827 #define TOK_A_OR  0xfc
 828 #define TOK_A_SHL 0x81
 829 #define TOK_A_SAR 0x82
 830
 831 #ifndef offsetof
 832 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 833 #endif
 834
 835 #ifndef countof
 836 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 837 #endif
 838
 839 #define TOK_EOF       (-1)  /* end of file */
 840 #define TOK_LINEFEED  10    /* line feed */
 841
 842 /* all identificators and strings have token above that */
 843 #define TOK_IDENT 256
 844
 845 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 846 #define TOK_ASM_int TOK_INT
 847 #define TOK_ASM_weak TOK_WEAK1
 848
 849 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 850 /* only used for i386 asm opcodes definitions */
 851 #define DEF_BWL(x) \
 852  DEF(TOK_ASM_ ## x ## b, #x "b") \
 853  DEF(TOK_ASM_ ## x ## w, #x "w") \
 854  DEF(TOK_ASM_ ## x ## l, #x "l") \
 855  DEF(TOK_ASM_ ## x, #x)
 856 #define DEF_WL(x) \
 857  DEF(TOK_ASM_ ## x ## w, #x "w") \
 858  DEF(TOK_ASM_ ## x ## l, #x "l") \
 859  DEF(TOK_ASM_ ## x, #x)
 860 #ifdef TCC_TARGET_X86_64
 861 # define DEF_BWLQ(x) \
 862  DEF(TOK_ASM_ ## x ## b, #x "b") \
 863  DEF(TOK_ASM_ ## x ## w, #x "w") \
 864  DEF(TOK_ASM_ ## x ## l, #x "l") \
 865  DEF(TOK_ASM_ ## x ## q, #x "q") \
 866  DEF(TOK_ASM_ ## x, #x)
 867 # define DEF_WLQ(x) \
 868  DEF(TOK_ASM_ ## x ## w, #x "w") \
 869  DEF(TOK_ASM_ ## x ## l, #x "l") \
 870  DEF(TOK_ASM_ ## x ## q, #x "q") \
 871  DEF(TOK_ASM_ ## x, #x)
 872 # define DEF_BWLX DEF_BWLQ
 873 # define DEF_WLX DEF_WLQ
 874 /* number of sizes + 1 */
 875 # define NBWLX 5
 876 #else
 877 # define DEF_BWLX DEF_BWL
 878 # define DEF_WLX DEF_WL
 879 /* number of sizes + 1 */
 880 # define NBWLX 4
 881 #endif
 882
 883 #define DEF_FP1(x) \
 884  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 885  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 886  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 887  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 888
 889 #define DEF_FP(x) \
 890  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 891  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 892  DEF_FP1(x)
 893
 894 #define DEF_ASMTEST(x) \
 895  DEF_ASM(x ## o) \
 896  DEF_ASM(x ## no) \
 897  DEF_ASM(x ## b) \
 898  DEF_ASM(x ## c) \
 899  DEF_ASM(x ## nae) \
 900  DEF_ASM(x ## nb) \
 901  DEF_ASM(x ## nc) \
 902  DEF_ASM(x ## ae) \
 903  DEF_ASM(x ## e) \
 904  DEF_ASM(x ## z) \
 905  DEF_ASM(x ## ne) \
 906  DEF_ASM(x ## nz) \
 907  DEF_ASM(x ## be) \
 908  DEF_ASM(x ## na) \
 909  DEF_ASM(x ## nbe) \
 910  DEF_ASM(x ## a) \
 911  DEF_ASM(x ## s) \
 912  DEF_ASM(x ## ns) \
 913  DEF_ASM(x ## p) \
 914  DEF_ASM(x ## pe) \
 915  DEF_ASM(x ## np) \
 916  DEF_ASM(x ## po) \
 917  DEF_ASM(x ## l) \
 918  DEF_ASM(x ## nge) \
 919  DEF_ASM(x ## nl) \
 920  DEF_ASM(x ## ge) \
 921  DEF_ASM(x ## le) \
 922  DEF_ASM(x ## ng) \
 923  DEF_ASM(x ## nle) \
 924  DEF_ASM(x ## g)
 925
 926 #endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */
 927
 928 enum tcc_token {
 929     TOK_LAST = TOK_IDENT - 1,
 930 #define DEF(id, str) id,
 931 #include "tcctok.h"
 932 #undef DEF
 933 };
 934
 935 #define TOK_UIDENT TOK_DEFINE
 936
 937 #ifdef _WIN32
 938 #define snprintf _snprintf
 939 #define vsnprintf _vsnprintf
 940 #ifndef __GNUC__
 941 # define strtold (long double)strtod
 942 # define strtof (float)strtod
 943 # define strtoll _strtoi64
 944 # define strtoull _strtoui64
 945 #endif
 946 #else
 947 /* XXX: need to define this to use them in non ISOC99 context */
 948 extern float strtof (const char *__nptr, char **__endptr);
 949 extern long double strtold (const char *__nptr, char **__endptr);
 950 #endif
 951
 952 #ifdef _WIN32
 953 #define IS_DIRSEP(c) (c == '/' || c == '\\')
 954 #define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
 955 #define PATHCMP stricmp
 956 #else
 957 #define IS_DIRSEP(c) (c == '/')
 958 #define IS_ABSPATH(p) IS_DIRSEP(p[0])
 959 #define PATHCMP strcmp
 960 #endif
 961
 962 #ifdef TCC_TARGET_PE
 963 #define PATHSEP ';'
 964 #else
 965 #define PATHSEP ':'
 966 #endif
 967
 968 /* space exlcuding newline */
 969 static inline int is_space(int ch)
 970 {
 971     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 972 }
 973
 974 static inline int isid(int c)
 975 {
 976     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 977 }
 978
 979 static inline int isnum(int c)
 980 {
 981     return c >= '0' && c <= '9';
 982 }
 983
 984 static inline int isoct(int c)
 985 {
 986     return c >= '0' && c <= '7';
 987 }
 988
 989 static inline int toup(int c)
 990 {
 991     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 992 }
 993
 994 #ifndef PUB_FUNC
 995 # define PUB_FUNC
 996 #endif
 997
 998 #ifdef ONE_SOURCE
 999 #define ST_INLN static inline
1000 #define ST_FUNC static
1001 #define ST_DATA static
1002 #else
1003 #define ST_INLN
1004 #define ST_FUNC
1005 #define ST_DATA extern
1006 #endif
1007
1008 /* ------------ libtcc.c ------------ */
1009
1010 /* use GNU C extensions */
1011 ST_DATA int gnu_ext;
1012 /* use Tiny C extensions */
1013 ST_DATA int tcc_ext;
1014 /* XXX: get rid of this ASAP */
1015 ST_DATA struct TCCState *tcc_state;
1016
1017 #ifdef MEM_DEBUG
1018 ST_DATA int mem_cur_size;
1019 ST_DATA int mem_max_size;
1020 #endif
1021
1022 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
1023 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
1024 #define AFF_PREPROCESS      0x0004 /* preprocess file */
1025
1026 /* public functions currently used by the tcc main function */
1027 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
1028 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
1029 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
1030 PUB_FUNC char *tcc_basename(const char *name);
1031 PUB_FUNC char *tcc_fileextension (const char *name);
1032 PUB_FUNC void tcc_free(void *ptr);
1033 PUB_FUNC void *tcc_malloc(unsigned long size);
1034 PUB_FUNC void *tcc_mallocz(unsigned long size);
1035 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
1036 PUB_FUNC char *tcc_strdup(const char *str);
1037 #define free(p) use_tcc_free(p)
1038 #define malloc(s) use_tcc_malloc(s)
1039 #define realloc(p, s) use_tcc_realloc(p, s)
1040 #undef strdup
1041 #define strdup(s) use_tcc_strdup(s)
1042 PUB_FUNC void tcc_memstats(void);
1043 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1044 PUB_FUNC void tcc_error(const char *fmt, ...);
1045 PUB_FUNC void tcc_warning(const char *fmt, ...);
1046
1047 /* other utilities */
1048 ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1049 ST_FUNC void dynarray_reset(void *pp, int *n);
1050 ST_FUNC void cstr_ccat(CString *cstr, int ch);
1051 ST_FUNC void cstr_cat(CString *cstr, const char *str);
1052 ST_FUNC void cstr_wccat(CString *cstr, int ch);
1053 ST_FUNC void cstr_new(CString *cstr);
1054 ST_FUNC void cstr_free(CString *cstr);
1055 ST_FUNC void cstr_reset(CString *cstr);
1056
1057 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1058 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1059 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1060 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1061 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1062
1063 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
1064 ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
1065 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1066
1067 ST_INLN void sym_free(Sym *sym);
1068 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1069 ST_FUNC Sym *sym_find2(Sym *s, int v);
1070 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1071 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1072 ST_INLN Sym *struct_find(int v);
1073 ST_INLN Sym *sym_find(int v);
1074 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1075
1076 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1077 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1078 ST_FUNC void tcc_close(void);
1079
1080 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1081 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1082 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1083
1084 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1085 PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
1086
1087 PUB_FUNC void tcc_set_environment(TCCState *s);
1088
1089 /* ------------ tccpp.c ------------ */
1090
1091 ST_DATA struct BufferedFile *file;
1092 ST_DATA int ch, tok;
1093 ST_DATA CValue tokc;
1094 ST_DATA const int *macro_ptr;
1095 ST_DATA int parse_flags;
1096 ST_DATA int tok_flags;
1097 ST_DATA CString tokcstr; /* current parsed string, if any */
1098
1099 /* display benchmark infos */
1100 ST_DATA int total_lines;
1101 ST_DATA int total_bytes;
1102 ST_DATA int tok_ident;
1103 ST_DATA TokenSym **table_ident;
1104
1105 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1106 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1107 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1108 #define TOK_FLAG_EOF   0x0008 /* end of file */
1109
1110 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1111 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1112 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1113                                         token. line feed is also
1114                                         returned at eof */
1115 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1116 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1117
1118 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1119 ST_FUNC char *get_tok_str(int v, CValue *cv);
1120 ST_FUNC void save_parse_state(ParseState *s);
1121 ST_FUNC void restore_parse_state(ParseState *s);
1122 ST_INLN void tok_str_new(TokenString *s);
1123 ST_FUNC void tok_str_free(int *str);
1124 ST_FUNC void tok_str_add(TokenString *s, int t);
1125 ST_FUNC void tok_str_add_tok(TokenString *s);
1126 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1127 ST_FUNC void define_undef(Sym *s);
1128 ST_INLN Sym *define_find(int v);
1129 ST_FUNC void free_defines(Sym *b);
1130 ST_FUNC Sym *label_find(int v);
1131 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1132 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1133 ST_FUNC void parse_define(void);
1134 ST_FUNC void preprocess(int is_bof);
1135 ST_FUNC void next_nomacro(void);
1136 ST_FUNC void next(void);
1137 ST_INLN void unget_tok(int last_tok);
1138 ST_FUNC void preprocess_init(TCCState *s1);
1139 ST_FUNC void preprocess_new(void);
1140 ST_FUNC int tcc_preprocess(TCCState *s1);
1141 ST_FUNC void skip(int c);
1142 ST_FUNC void expect(const char *msg);
1143
1144 /* ------------ tccgen.c ------------ */
1145
1146 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1147 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1148 #ifdef CONFIG_TCC_ASM
1149 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1150 #endif
1151 #ifdef CONFIG_TCC_BCHECK
1152 /* bound check related sections */
1153 ST_DATA Section *bounds_section; /* contains global data bound description */
1154 ST_DATA Section *lbounds_section; /* contains local data bound description */
1155 #endif
1156 /* symbol sections */
1157 ST_DATA Section *symtab_section, *strtab_section;
1158 /* debug sections */
1159 ST_DATA Section *stab_section, *stabstr_section;
1160
1161 #define SYM_POOL_NB (8192 / sizeof(Sym))
1162 ST_DATA Sym *sym_free_first;
1163 ST_DATA void **sym_pools;
1164 ST_DATA int nb_sym_pools;
1165
1166 ST_DATA Sym *global_stack;
1167 ST_DATA Sym *local_stack;
1168 ST_DATA Sym *local_label_stack;
1169 ST_DATA Sym *global_label_stack;
1170 ST_DATA Sym *define_stack;
1171 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1172 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
1173 #define vstack  (__vstack + 1)
1174 ST_DATA int rsym, anon_sym, ind, loc;
1175
1176 ST_DATA int const_wanted; /* true if constant wanted */
1177 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1178 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1179 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1180 ST_DATA int func_var; /* true if current function is variadic */
1181 ST_DATA int func_vc;
1182 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1183 ST_DATA char *funcname;
1184
1185 ST_INLN int is_float(int t);
1186 ST_FUNC int ieee_finite(double d);
1187 ST_FUNC void test_lvalue(void);
1188 ST_FUNC void swap(int *p, int *q);
1189 ST_FUNC void vpushi(int v);
1190 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1191 ST_FUNC void vset(CType *type, int r, int v);
1192 ST_FUNC void vswap(void);
1193 ST_FUNC void vpush_global_sym(CType *type, int v);
1194 ST_FUNC void vrote(SValue *e, int n);
1195 ST_FUNC void vrott(int n);
1196 ST_FUNC void vrotb(int n);
1197 #ifdef TCC_TARGET_ARM
1198 ST_FUNC int get_reg_ex(int rc, int rc2);
1199 ST_FUNC void lexpand_nr(void);
1200 #endif
1201 ST_FUNC void vpushv(SValue *v);
1202 ST_FUNC void save_reg(int r);
1203 ST_FUNC int get_reg(int rc);
1204 ST_FUNC void save_regs(int n);
1205 ST_FUNC int gv(int rc);
1206 ST_FUNC void gv2(int rc1, int rc2);
1207 ST_FUNC void vpop(void);
1208 ST_FUNC void gen_op(int op);
1209 ST_FUNC int type_size(CType *type, int *a);
1210 ST_FUNC void mk_pointer(CType *type);
1211 ST_FUNC void vstore(void);
1212 ST_FUNC void inc(int post, int c);
1213 ST_FUNC void parse_asm_str(CString *astr);
1214 ST_FUNC int lvalue_type(int t);
1215 ST_FUNC void indir(void);
1216 ST_FUNC void unary(void);
1217 ST_FUNC void expr_prod(void);
1218 ST_FUNC void expr_sum(void);
1219 ST_FUNC void gexpr(void);
1220 ST_FUNC int expr_const(void);
1221 ST_FUNC void gen_inline_functions(void);
1222 ST_FUNC void decl(int l);
1223 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1224 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1225 #endif
1226 #if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE
1227 ST_FUNC int classify_x86_64_va_arg(CType *ty);
1228 #endif
1229
1230 /* ------------ tccelf.c ------------ */
1231
1232 #define TCC_OUTPUT_FORMAT_ELF    0 /* default output format: ELF */
1233 #define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */
1234 #define TCC_OUTPUT_FORMAT_COFF   2 /* COFF */
1235
1236 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1237
1238 typedef struct {
1239     unsigned int n_strx;         /* index into string table of name */
1240     unsigned char n_type;         /* type of symbol */
1241     unsigned char n_other;        /* misc info (usually empty) */
1242     unsigned short n_desc;        /* description field */
1243     unsigned int n_value;        /* value of symbol */
1244 } Stab_Sym;
1245
1246 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);
1247
1248 ST_FUNC int put_elf_str(Section *s, const char *sym);
1249 ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
1250 ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
1251 ST_FUNC int find_elf_sym(Section *s, const char *name);
1252 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1253
1254 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1255 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1256 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1257 ST_FUNC void put_stabd(int type, int other, int desc);
1258
1259 ST_FUNC void relocate_common_syms(void);
1260 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1261 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1262
1263 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1264 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1265 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1266 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1267
1268 ST_FUNC void build_got_entries(TCCState *s1);
1269 ST_FUNC void tcc_add_runtime(TCCState *s1);
1270
1271 ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err);
1272 #if defined TCC_IS_NATIVE || defined TCC_TARGET_PE
1273 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1274 #endif
1275
1276 #ifndef TCC_TARGET_PE
1277 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1278 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1279 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1280 ST_FUNC void minp(void);
1281 ST_INLN void inp(void);
1282 ST_FUNC int handle_eob(void);
1283 #endif
1284
1285 /* ------------ xxx-gen.c ------------ */
1286
1287 ST_DATA const int reg_classes[NB_REGS];
1288
1289 ST_FUNC void gsym_addr(int t, int a);
1290 ST_FUNC void gsym(int t);
1291 ST_FUNC void load(int r, SValue *sv);
1292 ST_FUNC void store(int r, SValue *v);
1293 ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align);
1294 ST_FUNC void gfunc_call(int nb_args);
1295 ST_FUNC void gfunc_prolog(CType *func_type);
1296 ST_FUNC void gfunc_epilog(void);
1297 ST_FUNC int gjmp(int t);
1298 ST_FUNC void gjmp_addr(int a);
1299 ST_FUNC int gtst(int inv, int t);
1300 ST_FUNC void gen_opi(int op);
1301 ST_FUNC void gen_opf(int op);
1302 ST_FUNC void gen_cvt_ftoi(int t);
1303 ST_FUNC void gen_cvt_ftof(int t);
1304 ST_FUNC void ggoto(void);
1305 #ifndef TCC_TARGET_C67
1306 ST_FUNC void o(unsigned int c);
1307 #endif
1308 #ifndef TCC_TARGET_ARM
1309 ST_FUNC void gen_cvt_itof(int t);
1310 #endif
1311 ST_FUNC void gen_vla_sp_save(int addr);
1312 ST_FUNC void gen_vla_sp_restore(int addr);
1313 ST_FUNC void gen_vla_alloc(CType *type, int align);
1314
1315 /* ------------ i386-gen.c ------------ */
1316 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1317 ST_FUNC void g(int c);
1318 ST_FUNC int oad(int c, int s);
1319 ST_FUNC void gen_le16(int c);
1320 ST_FUNC void gen_le32(int c);
1321 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1322 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1323 #endif
1324
1325 #ifdef CONFIG_TCC_BCHECK
1326 ST_FUNC void gen_bounded_ptr_add(void);
1327 ST_FUNC void gen_bounded_ptr_deref(void);
1328 #endif
1329
1330 /* ------------ x86_64-gen.c ------------ */
1331 #ifdef TCC_TARGET_X86_64
1332 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1333 ST_FUNC void gen_opl(int op);
1334 #endif
1335
1336 /* ------------ arm-gen.c ------------ */
1337 #ifdef TCC_TARGET_ARM
1338 #ifdef TCC_ARM_EABI
1339 ST_FUNC char *default_elfinterp(struct TCCState *s);
1340 #endif
1341 ST_FUNC void arm_init(struct TCCState *s);
1342 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1343 ST_FUNC void gen_cvt_itof1(int t);
1344 #endif
1345
1346 /* ------------ c67-gen.c ------------ */
1347 #ifdef TCC_TARGET_C67
1348 #endif
1349
1350 /* ------------ tcccoff.c ------------ */
1351
1352 #ifdef TCC_TARGET_COFF
1353 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1354 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1355 #endif
1356
1357 /* ------------ tccasm.c ------------ */
1358 ST_FUNC void asm_instr(void);
1359 ST_FUNC void asm_global_instr(void);
1360 #ifdef CONFIG_TCC_ASM
1361 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1362 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1363 ST_FUNC int asm_int_expr(TCCState *s1);
1364 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1365 /* ------------ i386-asm.c ------------ */
1366 ST_FUNC void gen_expr32(ExprValue *pe);
1367 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1368 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1369 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1370 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1371 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1372 #endif
1373
1374 /* ------------ tccpe.c -------------- */
1375 #ifdef TCC_TARGET_PE
1376 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1377 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1378 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value);
1379 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1380 #ifdef TCC_TARGET_X86_64
1381 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1382 #endif
1383 #endif
1384
1385 /* ------------ tccrun.c ----------------- */
1386 #ifdef TCC_IS_NATIVE
1387 #ifdef CONFIG_TCC_STATIC
1388 #define RTLD_LAZY       0x001
1389 #define RTLD_NOW        0x002
1390 #define RTLD_GLOBAL     0x100
1391 #define RTLD_DEFAULT    NULL
1392 /* dummy function for profiling */
1393 ST_FUNC void *dlopen(const char *filename, int flag);
1394 ST_FUNC void dlclose(void *p);
1395 ST_FUNC const char *dlerror(void);
1396 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1397 #elif !defined _WIN32
1398 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1399 #endif
1400
1401 #ifdef CONFIG_TCC_BACKTRACE
1402 ST_DATA int rt_num_callers;
1403 ST_DATA const char **rt_bound_error_msg;
1404 ST_DATA void *rt_prog_main;
1405 ST_FUNC void tcc_set_num_callers(int n);
1406 #endif
1407 #endif
1408
1409 /********************************************************/
1410 #undef ST_DATA
1411 #ifdef ONE_SOURCE
1412 #define ST_DATA static
1413 #else
1414 #define ST_DATA
1415 #endif
1416 /********************************************************/
1417 #endif /* _TCC_H */