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
  29 #include "tccboot.h"
  30 #define CONFIG_TCC_STATIC
  31
  32 #else
  33
  34 #include <stdlib.h>
  35 #include <stdio.h>
  36 #include <stdarg.h>
  37 #include <string.h>
  38 #include <errno.h>
  39 #include <math.h>
  40 #include <signal.h>
  41 #include <fcntl.h>
  42 #include <setjmp.h>
  43 #include <time.h>
  44
  45 #ifdef _WIN32
  46 #include <windows.h>
  47 #include <sys/timeb.h>
  48 #include <io.h> /* open, close etc. */
  49 #include <direct.h> /* getcwd */
  50 #define inline __inline
  51 #define inp next_inp
  52 #ifdef LIBTCC_AS_DLL
  53 # define LIBTCCAPI __declspec(dllexport)
  54 # define PUB_FUNC LIBTCCAPI
  55 #endif
  56 #endif
  57
  58 #ifndef _WIN32
  59 #include <unistd.h>
  60 #include <sys/time.h>
  61 #include <sys/ucontext.h>
  62 #include <sys/mman.h>
  63 #include <dlfcn.h>
  64 #endif
  65
  66 #endif /* !CONFIG_TCCBOOT */
  67
  68 #ifndef PAGESIZE
  69 #define PAGESIZE 4096
  70 #endif
  71
  72 #ifndef O_BINARY
  73 #define O_BINARY 0
  74 #endif
  75
  76 #ifndef SA_SIGINFO
  77 #define SA_SIGINFO 0x00000004u
  78 #endif
  79
  80 #include "elf.h"
  81 #include "stab.h"
  82 #include "libtcc.h"
  83
  84 /* parser debug */
  85 //#define PARSE_DEBUG
  86 /* preprocessor debug */
  87 //#define PP_DEBUG
  88 /* include file debug */
  89 //#define INC_DEBUG
  90
  91 //#define MEM_DEBUG
  92
  93 /* assembler debug */
  94 //#define ASM_DEBUG
  95
  96 /* target selection */
  97 //#define TCC_TARGET_I386   /* i386 code generator */
  98 //#define TCC_TARGET_ARM    /* ARMv4 code generator */
  99 //#define TCC_TARGET_C67    /* TMS320C67xx code generator */
 100 //#define TCC_TARGET_X86_64 /* x86-64 code generator */
 101
 102 /* default target is I386 */
 103 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 104     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 105 #define TCC_TARGET_I386
 106 #endif
 107
 108 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 109     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 110 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 111 #endif
 112
 113 #if defined(_WIN32) && !defined(TCC_TARGET_PE)
 114 #define CONFIG_TCC_STATIC
 115 #endif
 116
 117 /* define it to include assembler support */
 118 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 119 #define CONFIG_TCC_ASM
 120 #endif
 121
 122 /* object format selection */
 123 #if defined(TCC_TARGET_C67)
 124 #define TCC_TARGET_COFF
 125 #endif
 126
 127 /* only native compiler supports -run */
 128 #if defined _WIN32 == defined TCC_TARGET_PE
 129 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 130 #  define TCC_IS_NATIVE
 131 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 132 #  define TCC_IS_NATIVE
 133 # elif defined __arm__ && defined TCC_TARGET_ARM
 134 #  define TCC_IS_NATIVE
 135 # endif
 136 #endif
 137
 138 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 139 # define CONFIG_TCC_BACKTRACE
 140 #endif
 141
 142 /* target address type */
 143 #if defined TCC_TARGET_X86_64 && (!defined __x86_64__ || defined _WIN32)
 144 # define uplong unsigned long long
 145 #else
 146 # define uplong unsigned long
 147 #endif
 148
 149 /* ------------ path configuration ------------ */
 150
 151 #ifndef CONFIG_SYSROOT
 152 # define CONFIG_SYSROOT ""
 153 #endif
 154
 155 #ifdef CONFIG_MULTIARCHDIR
 156 # define CONFIG_LDDIR "lib/" CONFIG_MULTIARCHDIR
 157 #endif
 158
 159 #ifndef CONFIG_LDDIR
 160 # define CONFIG_LDDIR "lib"
 161 #endif
 162
 163 /* path to find crt1.o, crti.o and crtn.o */
 164 #ifndef CONFIG_TCC_CRTPREFIX
 165 # define CONFIG_TCC_CRTPREFIX CONFIG_SYSROOT "/usr/" CONFIG_LDDIR
 166 #endif
 167
 168 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 169
 170 /* system include paths */
 171 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 172 # ifdef TCC_TARGET_PE
 173 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 174 # elif defined CONFIG_MULTIARCHDIR
 175 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 176         CONFIG_SYSROOT "/usr/local/include" \
 177     ":" CONFIG_SYSROOT "/usr/local/include/" CONFIG_MULTIARCHDIR \
 178     ":" CONFIG_SYSROOT "/usr/include" \
 179     ":" CONFIG_SYSROOT "/usr/include/" CONFIG_MULTIARCHDIR \
 180     ":" "{B}/include"
 181 # else
 182 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 183         CONFIG_SYSROOT "/usr/local/include" \
 184     ":" CONFIG_SYSROOT "/usr/include" \
 185     ":" "{B}/include"
 186 # endif
 187 #endif
 188
 189 /* library search paths */
 190 #ifndef CONFIG_TCC_LIBPATHS
 191 # ifdef TCC_TARGET_PE
 192 #  define CONFIG_TCC_LIBPATHS "{B}/lib"
 193 # else
 194 #  define CONFIG_TCC_LIBPATHS \
 195         CONFIG_SYSROOT "/usr/" CONFIG_LDDIR \
 196     ":" CONFIG_SYSROOT "/" CONFIG_LDDIR \
 197     ":" CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR
 198 # endif
 199 #endif
 200
 201 /* name of ELF interpreter */
 202 #ifndef CONFIG_TCC_ELFINTERP
 203 # if defined __FreeBSD__
 204 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 205 # elif defined __FreeBSD_kernel__
 206 #  define CONFIG_TCC_ELFINTERP "/lib/ld.so.1"
 207 # elif defined TCC_ARM_HARDFLOAT
 208 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux-armhf.so.3"
 209 # elif defined TCC_ARM_EABI
 210 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.3"
 211 # elif defined(TCC_TARGET_X86_64)
 212 #  define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2"
 213 # elif defined(TCC_UCLIBC)
 214 #  define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0"
 215 # else
 216 #  define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2"
 217 # endif
 218 #endif
 219
 220 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 221 #define TCC_LIBGCC CONFIG_SYSROOT "/" CONFIG_LDDIR "/libgcc_s.so.1"
 222
 223 /* -------------------------------------------- */
 224
 225 #define FALSE 0
 226 #define false 0
 227 #define TRUE 1
 228 #define true 1
 229 typedef int BOOL;
 230
 231 #ifndef _STATIC_ASSERT
 232 #define _STATIC_ASSERT(cond) do { (void) sizeof(char [1 - 2*!(cond)]); } while(0)
 233 #endif
 234
 235 #define INCLUDE_STACK_SIZE  32
 236 #define IFDEF_STACK_SIZE    64
 237 #define VSTACK_SIZE         256
 238 #define STRING_MAX_SIZE     1024
 239 #define PACK_STACK_SIZE     8
 240
 241 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 242 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 243 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 244
 245 /* token symbol management */
 246 typedef struct TokenSym {
 247     struct TokenSym *hash_next;
 248     struct Sym *sym_define; /* direct pointer to define */
 249     struct Sym *sym_label; /* direct pointer to label */
 250     struct Sym *sym_struct; /* direct pointer to structure */
 251     struct Sym *sym_identifier; /* direct pointer to identifier */
 252     int tok; /* token number */
 253     int len;
 254     char str[1];
 255 } TokenSym;
 256
 257 #ifdef TCC_TARGET_PE
 258 typedef unsigned short nwchar_t;
 259 #else
 260 typedef int nwchar_t;
 261 #endif
 262
 263 typedef struct CString {
 264     int size; /* size in bytes */
 265     void *data; /* either 'char *' or 'nwchar_t *' */
 266     int size_allocated;
 267     void *data_allocated; /* if non NULL, data has been malloced */
 268 } CString;
 269
 270 /* type definition */
 271 typedef struct CType {
 272     int t;
 273     struct Sym *ref;
 274 } CType;
 275
 276 /* constant value */
 277 typedef union CValue {
 278     long double ld;
 279     double d;
 280     float f;
 281     int i;
 282     unsigned int ui;
 283     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 284     long long ll;
 285     unsigned long long ull;
 286     struct CString *cstr;
 287     void *ptr;
 288     int tab[2];
 289 } CValue;
 290
 291 /* value on stack */
 292 typedef struct SValue {
 293     CType type;      /* type */
 294     unsigned short r;      /* register + flags */
 295     unsigned short r2;     /* second register, used for 'long long'
 296                               type. If not used, set to VT_CONST */
 297     CValue c;              /* constant, if VT_CONST */
 298     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 299 } SValue;
 300
 301 /* symbol management */
 302 typedef struct Sym {
 303     int v;    /* symbol token */
 304     char *asm_label;    /* associated asm label */
 305     long r;    /* associated register */
 306     union {
 307         long c;    /* associated number */
 308         int *d;   /* define token stream */
 309     };
 310     CType type;    /* associated type */
 311     union {
 312         struct Sym *next; /* next related symbol */
 313         long jnext; /* next jump label */
 314     };
 315     struct Sym *prev; /* prev symbol in stack */
 316     struct Sym *prev_tok; /* previous symbol for this token */
 317 } Sym;
 318
 319 /* section definition */
 320 /* XXX: use directly ELF structure for parameters ? */
 321 /* special flag to indicate that the section should not be linked to
 322    the other ones */
 323 #define SHF_PRIVATE 0x80000000
 324
 325 /* special flag, too */
 326 #define SECTION_ABS ((void *)1)
 327
 328 typedef struct Section {
 329     unsigned long data_offset; /* current data offset */
 330     unsigned char *data;       /* section data */
 331     unsigned long data_allocated; /* used for realloc() handling */
 332     int sh_name;             /* elf section name (only used during output) */
 333     int sh_num;              /* elf section number */
 334     int sh_type;             /* elf section type */
 335     int sh_flags;            /* elf section flags */
 336     int sh_info;             /* elf section info */
 337     int sh_addralign;        /* elf section alignment */
 338     int sh_entsize;          /* elf entry size */
 339     unsigned long sh_size;   /* section size (only used during output) */
 340     uplong sh_addr;          /* address at which the section is relocated */
 341     unsigned long sh_offset; /* file offset */
 342     int nb_hashed_syms;      /* used to resize the hash table */
 343     struct Section *link;    /* link to another section */
 344     struct Section *reloc;   /* corresponding section for relocation, if any */
 345     struct Section *hash;     /* hash table for symbols */
 346     struct Section *next;
 347     char name[1];           /* section name */
 348 } Section;
 349
 350 typedef struct DLLReference {
 351     int level;
 352     void *handle;
 353     char name[1];
 354 } DLLReference;
 355
 356 /* GNUC attribute definition */
 357 typedef struct AttributeDef {
 358     unsigned
 359       func_call     : 3, /* calling convention (0..5), see below */
 360       aligned       : 5, /* alignement (0..16) */
 361       packed        : 1,
 362       func_export   : 1,
 363       func_import   : 1,
 364       func_args     : 5,
 365       mode          : 4,
 366       weak          : 1,
 367       fill          : 11;
 368     struct Section *section;
 369     int alias_target;    /* token */
 370 } AttributeDef;
 371
 372 /* gr: wrappers for casting sym->r for other purposes */
 373 #define FUNC_CALL(r) (((AttributeDef*)&(r))->func_call)
 374 #define FUNC_EXPORT(r) (((AttributeDef*)&(r))->func_export)
 375 #define FUNC_IMPORT(r) (((AttributeDef*)&(r))->func_import)
 376 #define FUNC_ARGS(r) (((AttributeDef*)&(r))->func_args)
 377 #define FUNC_ALIGN(r) (((AttributeDef*)&(r))->aligned)
 378 #define FUNC_PACKED(r) (((AttributeDef*)&(r))->packed)
 379 #define ATTR_MODE(r)  (((AttributeDef*)&(r))->mode)
 380 #define INT_ATTR(ad) (*(int*)(ad))
 381
 382 /* -------------------------------------------------- */
 383
 384 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 385 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 386 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 387
 388 /* stored in 'Sym.c' field */
 389 #define FUNC_NEW       1 /* ansi function prototype */
 390 #define FUNC_OLD       2 /* old function prototype */
 391 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 392
 393 /* stored in 'Sym.r' field */
 394 #define FUNC_CDECL     0 /* standard c call */
 395 #define FUNC_STDCALL   1 /* pascal c call */
 396 #define FUNC_FASTCALL1 2 /* first param in %eax */
 397 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 398 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 399 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 400
 401 /* field 'Sym.t' for macros */
 402 #define MACRO_OBJ      0 /* object like macro */
 403 #define MACRO_FUNC     1 /* function like macro */
 404
 405 /* field 'Sym.r' for C labels */
 406 #define LABEL_DEFINED  0 /* label is defined */
 407 #define LABEL_FORWARD  1 /* label is forward defined */
 408 #define LABEL_DECLARED 2 /* label is declared but never used */
 409
 410 /* type_decl() types */
 411 #define TYPE_ABSTRACT  1 /* type without variable */
 412 #define TYPE_DIRECT    2 /* type with variable */
 413
 414 #define IO_BUF_SIZE 8192
 415
 416 typedef struct BufferedFile {
 417     uint8_t *buf_ptr;
 418     uint8_t *buf_end;
 419     int fd;
 420     struct BufferedFile *prev;
 421     int line_num;    /* current line number - here to simplify code */
 422     int ifndef_macro;  /* #ifndef macro / #endif search */
 423     int ifndef_macro_saved; /* saved ifndef_macro */
 424     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 425     char inc_type;          /* type of include */
 426     char inc_filename[512]; /* filename specified by the user */
 427     char filename[1024];    /* current filename - here to simplify code */
 428     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 429 } BufferedFile;
 430
 431 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 432 #define CH_EOF   (-1)   /* end of file */
 433
 434 /* parsing state (used to save parser state to reparse part of the
 435    source several times) */
 436 typedef struct ParseState {
 437     const int *macro_ptr;
 438     int line_num;
 439     int tok;
 440     CValue tokc;
 441 } ParseState;
 442
 443 /* used to record tokens */
 444 typedef struct TokenString {
 445     int *str;
 446     int len;
 447     int allocated_len;
 448     int last_line_num;
 449 } TokenString;
 450
 451 /* inline functions */
 452 typedef struct InlineFunc {
 453     int *token_str;
 454     Sym *sym;
 455     char filename[1];
 456 } InlineFunc;
 457
 458 /* include file cache, used to find files faster and also to eliminate
 459    inclusion if the include file is protected by #ifndef ... #endif */
 460 typedef struct CachedInclude {
 461     int ifndef_macro;
 462     int hash_next; /* -1 if none */
 463     char type; /* '"' or '>' to give include type */
 464     char filename[1]; /* path specified in #include */
 465 } CachedInclude;
 466
 467 #define CACHED_INCLUDES_HASH_SIZE 512
 468
 469 #ifdef CONFIG_TCC_ASM
 470 typedef struct ExprValue {
 471     uint32_t v;
 472     Sym *sym;
 473 } ExprValue;
 474
 475 #define MAX_ASM_OPERANDS 30
 476 typedef struct ASMOperand {
 477     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 478     char *constraint;
 479     char asm_str[16]; /* computed asm string for operand */
 480     SValue *vt; /* C value of the expression */
 481     int ref_index; /* if >= 0, gives reference to a output constraint */
 482     int input_index; /* if >= 0, gives reference to an input constraint */
 483     int priority; /* priority, used to assign registers */
 484     int reg; /* if >= 0, register number used for this operand */
 485     int is_llong; /* true if double register value */
 486     int is_memory; /* true if memory operand */
 487     int is_rw;     /* for '+' modifier */
 488 } ASMOperand;
 489 #endif
 490
 491 struct sym_attr {
 492     unsigned long got_offset;
 493 #ifdef TCC_TARGET_ARM
 494     unsigned char plt_thumb_stub:1;
 495 #endif
 496 };
 497
 498 struct TCCState {
 499     unsigned output_type    : 8;
 500     unsigned reloc_output   : 1;
 501
 502     BufferedFile **include_stack_ptr;
 503     int *ifdef_stack_ptr;
 504
 505     /* include file handling */
 506     char **include_paths;
 507     int nb_include_paths;
 508     char **sysinclude_paths;
 509     int nb_sysinclude_paths;
 510     CachedInclude **cached_includes;
 511     int nb_cached_includes;
 512
 513     char **library_paths;
 514     int nb_library_paths;
 515     char **crt_paths;
 516     int nb_crt_paths;
 517
 518     /* array of all loaded dlls (including those referenced by loaded
 519        dlls) */
 520     DLLReference **loaded_dlls;
 521     int nb_loaded_dlls;
 522
 523     /* sections */
 524     Section **sections;
 525     int nb_sections; /* number of sections, including first dummy section */
 526
 527     Section **priv_sections;
 528     int nb_priv_sections; /* number of private sections */
 529
 530     /* got & plt handling */
 531     Section *got;
 532     Section *plt;
 533     struct sym_attr *sym_attrs;
 534     int nb_sym_attrs;
 535     /* give the correspondance from symtab indexes to dynsym indexes */
 536     int *symtab_to_dynsym;
 537
 538     /* temporary dynamic symbol sections (for dll loading) */
 539     Section *dynsymtab_section;
 540     /* exported dynamic symbol section */
 541     Section *dynsym;
 542
 543     /* copy of the gobal symtab_section variable */
 544     Section *symtab;
 545
 546     int nostdinc; /* if true, no standard headers are added */
 547     int nostdlib; /* if true, no standard libraries are added */
 548     int nocommon; /* if true, do not use common symbols for .bss data */
 549
 550     /* if true, static linking is performed */
 551     int static_link;
 552
 553     /* soname as specified on the command line (-soname) */
 554     const char *soname;
 555     /* rpath as specified on the command line (-Wl,-rpath=) */
 556     const char *rpath;
 557
 558     /* if true, all symbols are exported */
 559     int rdynamic;
 560
 561     /* if true, resolve symbols in the current module first (-Wl,Bsymbolic) */
 562     int symbolic;
 563
 564     /* if true, only link in referenced objects from archive */
 565     int alacarte_link;
 566
 567     /* address of text section */
 568     uplong text_addr;
 569     int has_text_addr;
 570
 571     /* symbols to call at load-time / unload-time */
 572     const char *init_symbol;
 573     const char *fini_symbol;
 574
 575     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 576     int output_format;
 577
 578     /* C language options */
 579     int char_is_unsigned;
 580     int leading_underscore;
 581
 582     /* warning switches */
 583     int warn_write_strings;
 584     int warn_unsupported;
 585     int warn_error;
 586     int warn_none;
 587     int warn_implicit_function_declaration;
 588
 589     /* display some information during compilation */
 590     int verbose;
 591     /* compile with debug symbol (and use them if error during execution) */
 592     int do_debug;
 593 #ifdef CONFIG_TCC_BCHECK
 594     /* compile with built-in memory and bounds checker */
 595     int do_bounds_check;
 596 #endif
 597     /* give the path of the tcc libraries */
 598     char *tcc_lib_path;
 599
 600     /* error handling */
 601     void *error_opaque;
 602     void (*error_func)(void *opaque, const char *msg);
 603     int error_set_jmp_enabled;
 604     jmp_buf error_jmp_buf;
 605     int nb_errors;
 606
 607     /* tiny assembler state */
 608     Sym *asm_labels;
 609
 610     /* see include_stack_ptr */
 611     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 612
 613     /* see ifdef_stack_ptr */
 614     int ifdef_stack[IFDEF_STACK_SIZE];
 615
 616     /* see cached_includes */
 617     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 618
 619     /* pack stack */
 620     int pack_stack[PACK_STACK_SIZE];
 621     int *pack_stack_ptr;
 622
 623     /* output file for preprocessing */
 624     FILE *outfile;
 625
 626     /* automatically collected dependencies for this compilation */
 627     char **target_deps;
 628     int nb_target_deps;
 629
 630     /* for tcc_relocate */
 631     int runtime_added;
 632     void *runtime_mem;
 633 #ifdef HAVE_SELINUX
 634     void *write_mem;
 635     unsigned long mem_size;
 636 #endif
 637
 638     struct InlineFunc **inline_fns;
 639     int nb_inline_fns;
 640
 641 #ifdef TCC_TARGET_I386
 642     int seg_size;
 643 #endif
 644
 645     /* section alignment */
 646     unsigned long section_align;
 647
 648 #ifdef TCC_TARGET_PE
 649     /* PE info */
 650     int pe_subsystem;
 651     unsigned long pe_file_align;
 652     unsigned long pe_stack_size;
 653 #ifdef TCC_TARGET_X86_64
 654     Section *uw_pdata;
 655     int uw_sym;
 656     unsigned uw_offs;
 657 #endif
 658 #endif
 659
 660 #ifndef TCC_TARGET_PE
 661 #if defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM
 662     /* write PLT and GOT here */
 663     char *runtime_plt_and_got;
 664     unsigned int runtime_plt_and_got_offset;
 665 #endif
 666 #endif
 667 };
 668
 669 /* The current value can be: */
 670 #define VT_VALMASK   0x003f
 671 #define VT_CONST     0x0030  /* constant in vc
 672                               (must be first non register value) */
 673 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 674 #define VT_LOCAL     0x0032  /* offset on stack */
 675 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 676 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 677 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 678 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 679 #define VT_LVAL      0x0100  /* var is an lvalue */
 680 #define VT_SYM       0x0200  /* a symbol value is added */
 681 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 682                                 char/short stored in integer registers) */
 683 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 684                                 dereferencing value */
 685 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 686                                 bounding function call point is in vc */
 687 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 688 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 689 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 690 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 691
 692 /* types */
 693 #define VT_INT        0  /* integer type */
 694 #define VT_BYTE       1  /* signed byte type */
 695 #define VT_SHORT      2  /* short type */
 696 #define VT_VOID       3  /* void type */
 697 #define VT_PTR        4  /* pointer */
 698 #define VT_ENUM       5  /* enum definition */
 699 #define VT_FUNC       6  /* function type */
 700 #define VT_STRUCT     7  /* struct/union definition */
 701 #define VT_FLOAT      8  /* IEEE float */
 702 #define VT_DOUBLE     9  /* IEEE double */
 703 #define VT_LDOUBLE   10  /* IEEE long double */
 704 #define VT_BOOL      11  /* ISOC99 boolean type */
 705 #define VT_LLONG     12  /* 64 bit integer */
 706 #define VT_LONG      13  /* long integer (NEVER USED as type, only
 707                             during parsing) */
 708 #define VT_BTYPE      0x000f /* mask for basic type */
 709 #define VT_UNSIGNED   0x0010  /* unsigned type */
 710 #define VT_ARRAY      0x0020  /* array type (also has VT_PTR) */
 711 #define VT_VLA        0x20000 /* VLA type (also has VT_PTR and VT_ARRAY) */
 712 #define VT_BITFIELD   0x0040  /* bitfield modifier */
 713 #define VT_CONSTANT   0x0800  /* const modifier */
 714 #define VT_VOLATILE   0x1000  /* volatile modifier */
 715 #define VT_SIGNED     0x2000  /* signed type */
 716
 717 /* storage */
 718 #define VT_EXTERN  0x00000080  /* extern definition */
 719 #define VT_STATIC  0x00000100  /* static variable */
 720 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 721 #define VT_INLINE  0x00000400  /* inline definition */
 722 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 723 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 724 #define VT_WEAK    0x00010000  /* win32: data exported from dll */
 725
 726 #define VT_STRUCT_SHIFT 18   /* shift for bitfield shift values */
 727
 728 /* type mask (except storage) */
 729 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 730 #define VT_TYPE    (~(VT_STORAGE))
 731
 732 /* token values */
 733
 734 /* warning: the following compare tokens depend on i386 asm code */
 735 #define TOK_ULT 0x92
 736 #define TOK_UGE 0x93
 737 #define TOK_EQ  0x94
 738 #define TOK_NE  0x95
 739 #define TOK_ULE 0x96
 740 #define TOK_UGT 0x97
 741 #define TOK_Nset 0x98
 742 #define TOK_Nclear 0x99
 743 #define TOK_LT  0x9c
 744 #define TOK_GE  0x9d
 745 #define TOK_LE  0x9e
 746 #define TOK_GT  0x9f
 747
 748 #define TOK_LAND  0xa0
 749 #define TOK_LOR   0xa1
 750
 751 #define TOK_DEC   0xa2
 752 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 753 #define TOK_INC   0xa4
 754 #define TOK_UDIV  0xb0 /* unsigned division */
 755 #define TOK_UMOD  0xb1 /* unsigned modulo */
 756 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 757 #define TOK_CINT   0xb3 /* number in tokc */
 758 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 759 #define TOK_STR   0xb5 /* pointer to string in tokc */
 760 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 761 #define TOK_LCHAR    0xb7
 762 #define TOK_LSTR     0xb8
 763 #define TOK_CFLOAT   0xb9 /* float constant */
 764 #define TOK_LINENUM  0xba /* line number info */
 765 #define TOK_CDOUBLE  0xc0 /* double constant */
 766 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 767 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 768 #define TOK_ADDC1    0xc3 /* add with carry generation */
 769 #define TOK_ADDC2    0xc4 /* add with carry use */
 770 #define TOK_SUBC1    0xc5 /* add with carry generation */
 771 #define TOK_SUBC2    0xc6 /* add with carry use */
 772 #define TOK_CUINT    0xc8 /* unsigned int constant */
 773 #define TOK_CLLONG   0xc9 /* long long constant */
 774 #define TOK_CULLONG  0xca /* unsigned long long constant */
 775 #define TOK_ARROW    0xcb
 776 #define TOK_DOTS     0xcc /* three dots */
 777 #define TOK_SHR      0xcd /* unsigned shift right */
 778 #define TOK_PPNUM    0xce /* preprocessor number */
 779 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 780
 781 #define TOK_SHL   0x01 /* shift left */
 782 #define TOK_SAR   0x02 /* signed shift right */
 783
 784 /* assignement operators : normal operator or 0x80 */
 785 #define TOK_A_MOD 0xa5
 786 #define TOK_A_AND 0xa6
 787 #define TOK_A_MUL 0xaa
 788 #define TOK_A_ADD 0xab
 789 #define TOK_A_SUB 0xad
 790 #define TOK_A_DIV 0xaf
 791 #define TOK_A_XOR 0xde
 792 #define TOK_A_OR  0xfc
 793 #define TOK_A_SHL 0x81
 794 #define TOK_A_SAR 0x82
 795
 796 #ifndef offsetof
 797 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 798 #endif
 799
 800 #ifndef countof
 801 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 802 #endif
 803
 804 #define TOK_EOF       (-1)  /* end of file */
 805 #define TOK_LINEFEED  10    /* line feed */
 806
 807 /* all identificators and strings have token above that */
 808 #define TOK_IDENT 256
 809
 810 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 811 #define TOK_ASM_int TOK_INT
 812 #define TOK_ASM_weak TOK_WEAK1
 813
 814 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 815 /* only used for i386 asm opcodes definitions */
 816 #define DEF_BWL(x) \
 817  DEF(TOK_ASM_ ## x ## b, #x "b") \
 818  DEF(TOK_ASM_ ## x ## w, #x "w") \
 819  DEF(TOK_ASM_ ## x ## l, #x "l") \
 820  DEF(TOK_ASM_ ## x, #x)
 821 #define DEF_WL(x) \
 822  DEF(TOK_ASM_ ## x ## w, #x "w") \
 823  DEF(TOK_ASM_ ## x ## l, #x "l") \
 824  DEF(TOK_ASM_ ## x, #x)
 825 #ifdef TCC_TARGET_X86_64
 826 # define DEF_BWLQ(x) \
 827  DEF(TOK_ASM_ ## x ## b, #x "b") \
 828  DEF(TOK_ASM_ ## x ## w, #x "w") \
 829  DEF(TOK_ASM_ ## x ## l, #x "l") \
 830  DEF(TOK_ASM_ ## x ## q, #x "q") \
 831  DEF(TOK_ASM_ ## x, #x)
 832 # define DEF_WLQ(x) \
 833  DEF(TOK_ASM_ ## x ## w, #x "w") \
 834  DEF(TOK_ASM_ ## x ## l, #x "l") \
 835  DEF(TOK_ASM_ ## x ## q, #x "q") \
 836  DEF(TOK_ASM_ ## x, #x)
 837 # define DEF_BWLX DEF_BWLQ
 838 # define DEF_WLX DEF_WLQ
 839 /* number of sizes + 1 */
 840 # define NBWLX 5
 841 #else
 842 # define DEF_BWLX DEF_BWL
 843 # define DEF_WLX DEF_WL
 844 /* number of sizes + 1 */
 845 # define NBWLX 4
 846 #endif
 847
 848 #define DEF_FP1(x) \
 849  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 850  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 851  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 852  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 853
 854 #define DEF_FP(x) \
 855  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 856  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 857  DEF_FP1(x)
 858
 859 #define DEF_ASMTEST(x) \
 860  DEF_ASM(x ## o) \
 861  DEF_ASM(x ## no) \
 862  DEF_ASM(x ## b) \
 863  DEF_ASM(x ## c) \
 864  DEF_ASM(x ## nae) \
 865  DEF_ASM(x ## nb) \
 866  DEF_ASM(x ## nc) \
 867  DEF_ASM(x ## ae) \
 868  DEF_ASM(x ## e) \
 869  DEF_ASM(x ## z) \
 870  DEF_ASM(x ## ne) \
 871  DEF_ASM(x ## nz) \
 872  DEF_ASM(x ## be) \
 873  DEF_ASM(x ## na) \
 874  DEF_ASM(x ## nbe) \
 875  DEF_ASM(x ## a) \
 876  DEF_ASM(x ## s) \
 877  DEF_ASM(x ## ns) \
 878  DEF_ASM(x ## p) \
 879  DEF_ASM(x ## pe) \
 880  DEF_ASM(x ## np) \
 881  DEF_ASM(x ## po) \
 882  DEF_ASM(x ## l) \
 883  DEF_ASM(x ## nge) \
 884  DEF_ASM(x ## nl) \
 885  DEF_ASM(x ## ge) \
 886  DEF_ASM(x ## le) \
 887  DEF_ASM(x ## ng) \
 888  DEF_ASM(x ## nle) \
 889  DEF_ASM(x ## g)
 890
 891 #endif // defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 892
 893 enum tcc_token {
 894     TOK_LAST = TOK_IDENT - 1,
 895 #define DEF(id, str) id,
 896 #include "tcctok.h"
 897 #undef DEF
 898 };
 899
 900 #define TOK_UIDENT TOK_DEFINE
 901
 902 #ifdef _WIN32
 903 #define snprintf _snprintf
 904 #define vsnprintf _vsnprintf
 905 #ifndef __GNUC__
 906   #define strtold (long double)strtod
 907   #define strtof (float)strtod
 908   #define strtoll _strtoi64
 909   #define strtoull _strtoui64
 910 #endif
 911 #else
 912 /* XXX: need to define this to use them in non ISOC99 context */
 913 extern float strtof (const char *__nptr, char **__endptr);
 914 extern long double strtold (const char *__nptr, char **__endptr);
 915 #endif
 916
 917 #ifdef _WIN32
 918 #define IS_DIRSEP(c) (c == '/' || c == '\\')
 919 #define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
 920 #define PATHCMP stricmp
 921 #else
 922 #define IS_DIRSEP(c) (c == '/')
 923 #define IS_ABSPATH(p) IS_DIRSEP(p[0])
 924 #define PATHCMP strcmp
 925 #endif
 926
 927 #ifdef TCC_TARGET_PE
 928 #define PATHSEP ';'
 929 #else
 930 #define PATHSEP ':'
 931 #endif
 932
 933 /* space exlcuding newline */
 934 static inline int is_space(int ch)
 935 {
 936     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 937 }
 938
 939 static inline int isid(int c)
 940 {
 941     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 942 }
 943
 944 static inline int isnum(int c)
 945 {
 946     return c >= '0' && c <= '9';
 947 }
 948
 949 static inline int isoct(int c)
 950 {
 951     return c >= '0' && c <= '7';
 952 }
 953
 954 static inline int toup(int c)
 955 {
 956     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 957 }
 958
 959 #ifndef PUB_FUNC
 960 # define PUB_FUNC
 961 #endif
 962
 963 #ifdef ONE_SOURCE
 964 #define ST_INLN static inline
 965 #define ST_FUNC static
 966 #define ST_DATA static
 967 #else
 968 #define ST_INLN
 969 #define ST_FUNC
 970 #define ST_DATA extern
 971 #endif
 972
 973 /* ------------ libtcc.c ------------ */
 974
 975 /* use GNU C extensions */
 976 ST_DATA int gnu_ext;
 977 /* use Tiny C extensions */
 978 ST_DATA int tcc_ext;
 979 /* XXX: get rid of this ASAP */
 980 ST_DATA struct TCCState *tcc_state;
 981
 982 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
 983 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
 984 #define AFF_PREPROCESS      0x0004 /* preprocess file */
 985
 986 /* public functions currently used by the tcc main function */
 987 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
 988 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
 989 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
 990 PUB_FUNC char *tcc_basename(const char *name);
 991 PUB_FUNC char *tcc_fileextension (const char *name);
 992 PUB_FUNC void tcc_free(void *ptr);
 993 PUB_FUNC void *tcc_malloc(unsigned long size);
 994 PUB_FUNC void *tcc_mallocz(unsigned long size);
 995 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
 996 PUB_FUNC char *tcc_strdup(const char *str);
 997 #define free(p) use_tcc_free(p)
 998 #define malloc(s) use_tcc_malloc(s)
 999 #define realloc(p, s) use_tcc_realloc(p, s)
1000 #undef strdup
1001 #define strdup(s) use_tcc_strdup(s)
1002 PUB_FUNC void tcc_memstats(void);
1003 PUB_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
1004 PUB_FUNC void dynarray_reset(void *pp, int *n);
1005 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
1006 PUB_FUNC void tcc_error(const char *fmt, ...);
1007 PUB_FUNC void tcc_warning(const char *fmt, ...);
1008
1009 /* other utilities */
1010 PUB_FUNC void cstr_ccat(CString *cstr, int ch);
1011 PUB_FUNC void cstr_cat(CString *cstr, const char *str);
1012 PUB_FUNC void cstr_wccat(CString *cstr, int ch);
1013 PUB_FUNC void cstr_new(CString *cstr);
1014 PUB_FUNC void cstr_free(CString *cstr);
1015 PUB_FUNC void cstr_reset(CString *cstr);
1016
1017 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1018 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1019 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1020 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1021 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1022
1023 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, uplong value, unsigned long size, int can_add_underscore);
1024 ST_FUNC void put_extern_sym(Sym *sym, Section *section, uplong value, unsigned long size);
1025 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1026
1027 ST_INLN void sym_free(Sym *sym);
1028 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1029 ST_FUNC Sym *sym_find2(Sym *s, int v);
1030 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1031 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1032 ST_INLN Sym *struct_find(int v);
1033 ST_INLN Sym *sym_find(int v);
1034 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1035
1036 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1037 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1038 ST_FUNC void tcc_close(void);
1039
1040 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1041 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1042 #ifndef TCC_TARGET_PE
1043 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1044 #endif
1045
1046 PUB_FUNC int tcc_set_flag(TCCState *s, const char *flag_name, int value);
1047 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1048 PUB_FUNC char *tcc_default_target(TCCState *s, const char *default_file);
1049 PUB_FUNC void tcc_gen_makedeps(TCCState *s, const char *target, const char *filename);
1050
1051 /* ------------ tccpp.c ------------ */
1052
1053 ST_DATA struct BufferedFile *file;
1054 ST_DATA int ch, tok;
1055 ST_DATA CValue tokc;
1056 ST_DATA const int *macro_ptr;
1057 ST_DATA int parse_flags;
1058 ST_DATA int tok_flags;
1059 ST_DATA CString tokcstr; /* current parsed string, if any */
1060
1061 /* display benchmark infos */
1062 ST_DATA int total_lines;
1063 ST_DATA int total_bytes;
1064 ST_DATA int tok_ident;
1065 ST_DATA TokenSym **table_ident;
1066
1067 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1068 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1069 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1070 #define TOK_FLAG_EOF   0x0008 /* end of file */
1071
1072 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1073 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1074 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1075                                         token. line feed is also
1076                                         returned at eof */
1077 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1078 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1079
1080 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1081 ST_FUNC char *get_tok_str(int v, CValue *cv);
1082 ST_FUNC void save_parse_state(ParseState *s);
1083 ST_FUNC void restore_parse_state(ParseState *s);
1084 ST_INLN void tok_str_new(TokenString *s);
1085 ST_FUNC void tok_str_free(int *str);
1086 ST_FUNC void tok_str_add(TokenString *s, int t);
1087 ST_FUNC void tok_str_add_tok(TokenString *s);
1088 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1089 ST_FUNC void define_undef(Sym *s);
1090 ST_INLN Sym *define_find(int v);
1091 ST_FUNC void free_defines(Sym *b);
1092 ST_FUNC Sym *label_find(int v);
1093 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1094 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1095 ST_FUNC void parse_define(void);
1096 ST_FUNC void preprocess(int is_bof);
1097 ST_FUNC void next_nomacro(void);
1098 ST_FUNC void next(void);
1099 ST_INLN void unget_tok(int last_tok);
1100 ST_FUNC void preprocess_init(TCCState *s1);
1101 ST_FUNC void preprocess_new();
1102 ST_FUNC int tcc_preprocess(TCCState *s1);
1103 ST_FUNC void skip(int c);
1104 ST_FUNC void expect(const char *msg);
1105
1106 /* ------------ tccgen.c ------------ */
1107
1108 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1109 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1110 #ifdef CONFIG_TCC_ASM
1111 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1112 #endif
1113 #ifdef CONFIG_TCC_BCHECK
1114 /* bound check related sections */
1115 ST_DATA Section *bounds_section; /* contains global data bound description */
1116 ST_DATA Section *lbounds_section; /* contains local data bound description */
1117 #endif
1118 /* symbol sections */
1119 ST_DATA Section *symtab_section, *strtab_section;
1120 /* debug sections */
1121 ST_DATA Section *stab_section, *stabstr_section;
1122
1123 #define SYM_POOL_NB (8192 / sizeof(Sym))
1124 ST_DATA Sym *sym_free_first;
1125 ST_DATA void **sym_pools;
1126 ST_DATA int nb_sym_pools;
1127
1128 ST_DATA Sym *global_stack;
1129 ST_DATA Sym *local_stack;
1130 ST_DATA Sym *local_label_stack;
1131 ST_DATA Sym *global_label_stack;
1132 ST_DATA Sym *define_stack;
1133 ST_DATA CType char_pointer_type, func_old_type, int_type, size_type;
1134 ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop;
1135 #define vstack  (__vstack + 1)
1136 ST_DATA int rsym, anon_sym, ind, loc;
1137
1138 ST_DATA int const_wanted; /* true if constant wanted */
1139 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1140 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1141 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1142 ST_DATA int func_vc;
1143 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1144 ST_DATA char *funcname;
1145
1146 ST_INLN int is_float(int t);
1147 ST_FUNC int ieee_finite(double d);
1148 ST_FUNC void test_lvalue(void);
1149 ST_FUNC void swap(int *p, int *q);
1150 ST_FUNC void vpushi(int v);
1151 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1152 ST_FUNC void vset(CType *type, int r, int v);
1153 ST_FUNC void vswap(void);
1154 ST_FUNC void vpush_global_sym(CType *type, int v);
1155 ST_FUNC void vrote(SValue *e, int n);
1156 ST_FUNC void vrott(int n);
1157 ST_FUNC void vrotb(int n);
1158 #ifdef TCC_TARGET_ARM
1159 ST_FUNC int get_reg_ex(int rc, int rc2);
1160 ST_FUNC void lexpand_nr(void);
1161 #endif
1162 ST_FUNC void vpushv(SValue *v);
1163 ST_FUNC void save_reg(int r);
1164 ST_FUNC int get_reg(int rc);
1165 ST_FUNC void save_regs(int n);
1166 ST_FUNC int gv(int rc);
1167 ST_FUNC void gv2(int rc1, int rc2);
1168 ST_FUNC void vpop(void);
1169 ST_FUNC void gen_op(int op);
1170 ST_FUNC int type_size(CType *type, int *a);
1171 ST_FUNC void mk_pointer(CType *type);
1172 ST_FUNC void vstore(void);
1173 ST_FUNC void inc(int post, int c);
1174 ST_FUNC void parse_asm_str(CString *astr);
1175 ST_FUNC int lvalue_type(int t);
1176 ST_FUNC void indir(void);
1177 ST_FUNC void unary(void);
1178 ST_FUNC void expr_prod(void);
1179 ST_FUNC void expr_sum(void);
1180 ST_FUNC void gexpr(void);
1181 ST_FUNC int expr_const(void);
1182 ST_FUNC void gen_inline_functions(void);
1183 ST_FUNC void decl(int l);
1184 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1185 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1186 #endif
1187
1188 /* ------------ tccelf.c ------------ */
1189
1190 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1191
1192 typedef struct {
1193     unsigned int n_strx;         /* index into string table of name */
1194     unsigned char n_type;         /* type of symbol */
1195     unsigned char n_other;        /* misc info (usually empty) */
1196     unsigned short n_desc;        /* description field */
1197     unsigned int n_value;        /* value of symbol */
1198 } Stab_Sym;
1199
1200 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);
1201
1202 ST_FUNC int put_elf_str(Section *s, const char *sym);
1203 ST_FUNC int put_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int shndx, const char *name);
1204 ST_FUNC int add_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int sh_num, const char *name);
1205 ST_FUNC int find_elf_sym(Section *s, const char *name);
1206 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1207
1208 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1209 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1210 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1211 ST_FUNC void put_stabd(int type, int other, int desc);
1212
1213 ST_FUNC void relocate_common_syms(void);
1214 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1215 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1216
1217 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1218 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1219 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1220 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1221 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1222
1223 ST_FUNC void build_got_entries(TCCState *s1);
1224 ST_FUNC void tcc_add_runtime(TCCState *s1);
1225
1226 #ifndef TCC_TARGET_PE
1227 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1228 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1229 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1230 ST_FUNC void minp(void);
1231 ST_INLN void inp(void);
1232 ST_FUNC int handle_eob(void);
1233 #endif
1234
1235 #ifdef TCC_TARGET_X86_64
1236 # define ELFCLASSW ELFCLASS64
1237 # define ElfW(type) Elf##64##_##type
1238 # define ELFW(type) ELF##64##_##type
1239 # define ElfW_Rel ElfW(Rela)
1240 # define SHT_RELX SHT_RELA
1241 # define REL_SECTION_FMT ".rela%s"
1242 /* XXX: DLL with PLT would only work with x86-64 for now */
1243 # define TCC_OUTPUT_DLL_WITH_PLT
1244 #else
1245 # define ELFCLASSW ELFCLASS32
1246 # define ElfW(type) Elf##32##_##type
1247 # define ELFW(type) ELF##32##_##type
1248 # define ElfW_Rel ElfW(Rel)
1249 # define SHT_RELX SHT_REL
1250 # define REL_SECTION_FMT ".rel%s"
1251 #endif
1252
1253 /* ------------ xxx-gen.c ------------ */
1254
1255 ST_FUNC void gsym_addr(int t, int a);
1256 ST_FUNC void gsym(int t);
1257 ST_FUNC void load(int r, SValue *sv);
1258 ST_FUNC void store(int r, SValue *v);
1259 ST_FUNC void gfunc_call(int nb_args);
1260 ST_FUNC void gfunc_prolog(CType *func_type);
1261 ST_FUNC void gfunc_epilog(void);
1262 ST_FUNC int gjmp(int t);
1263 ST_FUNC void gjmp_addr(int a);
1264 ST_FUNC int gtst(int inv, int t);
1265 ST_FUNC void gen_opi(int op);
1266 ST_FUNC void gen_opf(int op);
1267 ST_FUNC void gen_cvt_ftoi(int t);
1268 ST_FUNC void gen_cvt_ftof(int t);
1269 ST_FUNC void ggoto(void);
1270 #ifndef TCC_TARGET_C67
1271 ST_FUNC void o(unsigned int c);
1272 #endif
1273 #ifndef TCC_TARGET_ARM
1274 ST_FUNC void gen_cvt_itof(int t);
1275 #endif
1276
1277 /* ------------ i386-gen.c ------------ */
1278 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1279 ST_FUNC void g(int c);
1280 ST_FUNC int oad(int c, int s);
1281 ST_FUNC void gen_le16(int c);
1282 ST_FUNC void gen_le32(int c);
1283 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1284 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1285 #endif
1286
1287 #ifdef CONFIG_TCC_BCHECK
1288 ST_FUNC void gen_bounded_ptr_add(void);
1289 ST_FUNC void gen_bounded_ptr_deref(void);
1290 #endif
1291
1292 /* ------------ x86_64-gen.c ------------ */
1293 #ifdef TCC_TARGET_X86_64
1294 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1295 #endif
1296
1297 /* ------------ arm-gen.c ------------ */
1298 #ifdef TCC_TARGET_ARM
1299 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1300 ST_FUNC void gen_cvt_itof1(int t);
1301 #endif
1302
1303 /* ------------ c67-gen.c ------------ */
1304 #ifdef TCC_TARGET_C67
1305 #endif
1306
1307 /* ------------ tcccoff.c ------------ */
1308
1309 #ifdef TCC_TARGET_COFF
1310 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1311 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1312 #endif
1313
1314 /* ------------ tccasm.c ------------ */
1315 ST_FUNC void asm_instr(void);
1316 ST_FUNC void asm_global_instr(void);
1317
1318 #ifdef CONFIG_TCC_ASM
1319 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1320 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1321 ST_FUNC int asm_int_expr(TCCState *s1);
1322 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1323 /* ------------ i386-asm.c ------------ */
1324 ST_FUNC void gen_expr32(ExprValue *pe);
1325 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1326 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1327 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1328 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1329 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1330 #endif
1331 /* ------------ tccpe.c -------------- */
1332 #ifdef TCC_TARGET_PE
1333 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1334 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1335 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, const void *value);
1336 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1337 /* tiny_impdef.c */
1338 ST_FUNC char *get_export_names(FILE *fp);
1339 #ifdef TCC_TARGET_X86_64
1340 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1341 #endif
1342 #endif
1343
1344 /* ------------ tccrun.c ----------------- */
1345 #ifdef CONFIG_TCC_STATIC
1346 #define RTLD_LAZY       0x001
1347 #define RTLD_NOW        0x002
1348 #define RTLD_GLOBAL     0x100
1349 #define RTLD_DEFAULT    NULL
1350 /* dummy function for profiling */
1351 ST_FUNC void *dlopen(const char *filename, int flag);
1352 ST_FUNC void dlclose(void *p);
1353 //ST_FUNC const char *dlerror(void);
1354 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1355 #elif !defined TCC_TARGET_PE || !defined _WIN32
1356 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1357 #endif
1358
1359 #ifdef CONFIG_TCC_BACKTRACE
1360 ST_DATA int rt_num_callers;
1361 ST_DATA const char **rt_bound_error_msg;
1362 ST_DATA void *rt_prog_main;
1363 PUB_FUNC void tcc_set_num_callers(int n);
1364 #endif
1365
1366 /********************************************************/
1367 /* include the target specific definitions */
1368
1369 #define TARGET_DEFS_ONLY
1370 #ifdef TCC_TARGET_I386
1371 #include "i386-gen.c"
1372 #endif
1373 #ifdef TCC_TARGET_X86_64
1374 #include "x86_64-gen.c"
1375 #endif
1376 #ifdef TCC_TARGET_ARM
1377 #include "arm-gen.c"
1378 #endif
1379 #ifdef TCC_TARGET_C67
1380 #include "coff.h"
1381 #include "c67-gen.c"
1382 #endif
1383 #undef TARGET_DEFS_ONLY
1384
1385 ST_DATA const int reg_classes[];
1386
1387 /********************************************************/
1388 #undef ST_DATA
1389 #ifdef ONE_SOURCE
1390 #define ST_DATA static
1391 #else
1392 #define ST_DATA
1393 #endif
1394 /********************************************************/
1395 #endif /* _TCC_H */