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 <process.h>
  48 #include <sys/timeb.h>
  49 #include <io.h> /* open, close etc. */
  50 #include <direct.h> /* getcwd */
  51 #define inline __inline
  52 #define inp next_inp
  53 #ifdef _WIN64
  54 #define uplong unsigned long long
  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 uplong
  69 #define uplong unsigned long
  70 #endif
  71
  72 #ifndef PAGESIZE
  73 #define PAGESIZE 4096
  74 #endif
  75
  76 #include "elf.h"
  77 #include "stab.h"
  78
  79 #ifndef O_BINARY
  80 #define O_BINARY 0
  81 #endif
  82
  83 #ifndef SA_SIGINFO
  84 #define SA_SIGINFO 0x00000004u
  85 #endif
  86
  87 #include "libtcc.h"
  88
  89 /* parser debug */
  90 //#define PARSE_DEBUG
  91 /* preprocessor debug */
  92 //#define PP_DEBUG
  93 /* include file debug */
  94 //#define INC_DEBUG
  95
  96 //#define MEM_DEBUG
  97
  98 /* assembler debug */
  99 //#define ASM_DEBUG
 100
 101 /* target selection */
 102 //#define TCC_TARGET_I386   /* i386 code generator */
 103 //#define TCC_TARGET_ARM    /* ARMv4 code generator */
 104 //#define TCC_TARGET_C67    /* TMS320C67xx code generator */
 105 //#define TCC_TARGET_X86_64 /* x86-64 code generator */
 106
 107 /* default target is I386 */
 108 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 109     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 110 #define TCC_TARGET_I386
 111 #endif
 112
 113 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 114     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 115 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 116 #endif
 117
 118 #if defined(_WIN32) && !defined(TCC_TARGET_PE)
 119 #define CONFIG_TCC_STATIC
 120 #endif
 121
 122 /* define it to include assembler support */
 123 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 124 #define CONFIG_TCC_ASM
 125 #endif
 126
 127 /* object format selection */
 128 #if defined(TCC_TARGET_C67)
 129 #define TCC_TARGET_COFF
 130 #endif
 131
 132 #if !defined(CONFIG_TCCBOOT)
 133 #define CONFIG_TCC_BACKTRACE
 134 #endif
 135
 136 /* ------------ path configuration ------------ */
 137
 138 #ifndef CONFIG_TCC_LDDIR
 139 # if defined(TCC_TARGET_X86_64_CENTOS)
 140 #  define CONFIG_TCC_LDDIR "/lib64"
 141 # else
 142 #  define CONFIG_TCC_LDDIR "/lib"
 143 # endif
 144 #endif
 145
 146 /* path to find crt1.o, crti.o and crtn.o */
 147 #ifndef CONFIG_TCC_CRTPREFIX
 148 # define CONFIG_TCC_CRTPREFIX "/usr" CONFIG_TCC_LDDIR
 149 #endif
 150
 151 /* system include paths */
 152 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 153 # ifdef TCC_TARGET_PE
 154 #  define CONFIG_TCC_SYSINCLUDEPATHS "\b/include;\b/include/winapi"
 155 # else
 156 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 157         CONFIG_SYSROOT "/usr/local/include" \
 158     ":" CONFIG_SYSROOT "/usr/include" \
 159     ":" "\b/include"
 160 # endif
 161 #endif
 162
 163 /* library search paths */
 164 #ifndef CONFIG_TCC_LIBPATHS
 165 # ifdef TCC_TARGET_PE
 166 #  define CONFIG_TCC_LIBPATHS "\b/lib"
 167 # else
 168 #  define CONFIG_TCC_LIBPATHS \
 169         CONFIG_SYSROOT CONFIG_TCC_CRTPREFIX \
 170     ":" CONFIG_SYSROOT CONFIG_TCC_LDDIR \
 171     ":" CONFIG_SYSROOT "/usr/local" CONFIG_TCC_LDDIR
 172 # endif
 173 #endif
 174
 175 /* name of ELF interpreter */
 176 #ifndef CONFIG_TCC_ELFINTERP
 177 # if defined __FreeBSD__
 178 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 179 # elif defined __FreeBSD_kernel__
 180 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld.so.1"
 181 # elif defined TCC_ARM_EABI
 182 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-linux.so.3"
 183 # elif defined(TCC_TARGET_X86_64)
 184 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-linux-x86-64.so.2"
 185 # elif defined(TCC_UCLIBC)
 186 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-uClibc.so.0"
 187 # else
 188 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-linux.so.2"
 189 # endif
 190 #endif
 191
 192 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 193 #define TCC_LIBGCC CONFIG_SYSROOT CONFIG_TCC_LDDIR "/libgcc_s.so.1"
 194 /* crt?.o files */
 195 #define TCC_CRTO(crto) CONFIG_SYSROOT CONFIG_TCC_CRTPREFIX "/" crto
 196
 197 /* -------------------------------------------- */
 198
 199 #define FALSE 0
 200 #define false 0
 201 #define TRUE 1
 202 #define true 1
 203 typedef int BOOL;
 204
 205 #define INCLUDE_STACK_SIZE  32
 206 #define IFDEF_STACK_SIZE    64
 207 #define VSTACK_SIZE         256
 208 #define STRING_MAX_SIZE     1024
 209 #define PACK_STACK_SIZE     8
 210
 211 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 212 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 213 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 214
 215 /* token symbol management */
 216 typedef struct TokenSym {
 217     struct TokenSym *hash_next;
 218     struct Sym *sym_define; /* direct pointer to define */
 219     struct Sym *sym_label; /* direct pointer to label */
 220     struct Sym *sym_struct; /* direct pointer to structure */
 221     struct Sym *sym_identifier; /* direct pointer to identifier */
 222     int tok; /* token number */
 223     int len;
 224     char str[1];
 225 } TokenSym;
 226
 227 #ifdef TCC_TARGET_PE
 228 typedef unsigned short nwchar_t;
 229 #else
 230 typedef int nwchar_t;
 231 #endif
 232
 233 typedef struct CString {
 234     int size; /* size in bytes */
 235     void *data; /* either 'char *' or 'nwchar_t *' */
 236     int size_allocated;
 237     void *data_allocated; /* if non NULL, data has been malloced */
 238 } CString;
 239
 240 /* type definition */
 241 typedef struct CType {
 242     int t;
 243     struct Sym *ref;
 244 } CType;
 245
 246 /* constant value */
 247 typedef union CValue {
 248     long double ld;
 249     double d;
 250     float f;
 251     int i;
 252     unsigned int ui;
 253     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 254     long long ll;
 255     unsigned long long ull;
 256     struct CString *cstr;
 257     void *ptr;
 258     int tab[2];
 259 } CValue;
 260
 261 /* value on stack */
 262 typedef struct SValue {
 263     CType type;      /* type */
 264     unsigned short r;      /* register + flags */
 265     unsigned short r2;     /* second register, used for 'long long'
 266                               type. If not used, set to VT_CONST */
 267     CValue c;              /* constant, if VT_CONST */
 268     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 269 } SValue;
 270
 271 /* symbol management */
 272 typedef struct Sym {
 273     int v;    /* symbol token */
 274     char *asm_label;    /* associated asm label */
 275     long r;    /* associated register */
 276     union {
 277         long c;    /* associated number */
 278         int *d;   /* define token stream */
 279     };
 280     CType type;    /* associated type */
 281     union {
 282         struct Sym *next; /* next related symbol */
 283         long jnext; /* next jump label */
 284     };
 285     struct Sym *prev; /* prev symbol in stack */
 286     struct Sym *prev_tok; /* previous symbol for this token */
 287 } Sym;
 288
 289 /* section definition */
 290 /* XXX: use directly ELF structure for parameters ? */
 291 /* special flag to indicate that the section should not be linked to
 292    the other ones */
 293 #define SHF_PRIVATE 0x80000000
 294
 295 /* special flag, too */
 296 #define SECTION_ABS ((void *)1)
 297
 298 typedef struct Section {
 299     unsigned long data_offset; /* current data offset */
 300     unsigned char *data;       /* section data */
 301     unsigned long data_allocated; /* used for realloc() handling */
 302     int sh_name;             /* elf section name (only used during output) */
 303     int sh_num;              /* elf section number */
 304     int sh_type;             /* elf section type */
 305     int sh_flags;            /* elf section flags */
 306     int sh_info;             /* elf section info */
 307     int sh_addralign;        /* elf section alignment */
 308     int sh_entsize;          /* elf entry size */
 309     unsigned long sh_size;   /* section size (only used during output) */
 310     unsigned long sh_addr;      /* address at which the section is relocated */
 311     unsigned long sh_offset;    /* file offset */
 312     int nb_hashed_syms;      /* used to resize the hash table */
 313     struct Section *link;    /* link to another section */
 314     struct Section *reloc;   /* corresponding section for relocation, if any */
 315     struct Section *hash;     /* hash table for symbols */
 316     struct Section *next;
 317     char name[1];           /* section name */
 318 } Section;
 319
 320 typedef struct DLLReference {
 321     int level;
 322     void *handle;
 323     char name[1];
 324 } DLLReference;
 325
 326 /* GNUC attribute definition */
 327 typedef struct AttributeDef {
 328     unsigned
 329       func_call     : 3, /* calling convention (0..5), see below */
 330       aligned       : 5, /* alignement (0..16) */
 331       packed        : 1,
 332       func_export   : 1,
 333       func_import   : 1,
 334       func_args     : 5,
 335       mode          : 4,
 336       weak          : 1,
 337       fill          : 11;
 338     struct Section *section;
 339     int alias_target;    /* token */
 340 } AttributeDef;
 341
 342 /* gr: wrappers for casting sym->r for other purposes */
 343 #define FUNC_CALL(r) (((AttributeDef*)&(r))->func_call)
 344 #define FUNC_EXPORT(r) (((AttributeDef*)&(r))->func_export)
 345 #define FUNC_IMPORT(r) (((AttributeDef*)&(r))->func_import)
 346 #define FUNC_ARGS(r) (((AttributeDef*)&(r))->func_args)
 347 #define FUNC_ALIGN(r) (((AttributeDef*)&(r))->aligned)
 348 #define FUNC_PACKED(r) (((AttributeDef*)&(r))->packed)
 349 #define ATTR_MODE(r)  (((AttributeDef*)&(r))->mode)
 350 #define INT_ATTR(ad) (*(int*)(ad))
 351
 352 /* -------------------------------------------------- */
 353
 354 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 355 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 356 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 357
 358 /* stored in 'Sym.c' field */
 359 #define FUNC_NEW       1 /* ansi function prototype */
 360 #define FUNC_OLD       2 /* old function prototype */
 361 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 362
 363 /* stored in 'Sym.r' field */
 364 #define FUNC_CDECL     0 /* standard c call */
 365 #define FUNC_STDCALL   1 /* pascal c call */
 366 #define FUNC_FASTCALL1 2 /* first param in %eax */
 367 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 368 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 369 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 370
 371 /* field 'Sym.t' for macros */
 372 #define MACRO_OBJ      0 /* object like macro */
 373 #define MACRO_FUNC     1 /* function like macro */
 374
 375 /* field 'Sym.r' for C labels */
 376 #define LABEL_DEFINED  0 /* label is defined */
 377 #define LABEL_FORWARD  1 /* label is forward defined */
 378 #define LABEL_DECLARED 2 /* label is declared but never used */
 379
 380 /* type_decl() types */
 381 #define TYPE_ABSTRACT  1 /* type without variable */
 382 #define TYPE_DIRECT    2 /* type with variable */
 383
 384 #define IO_BUF_SIZE 8192
 385
 386 typedef struct BufferedFile {
 387     uint8_t *buf_ptr;
 388     uint8_t *buf_end;
 389     int fd;
 390     struct BufferedFile *prev;
 391     int line_num;    /* current line number - here to simplify code */
 392     int ifndef_macro;  /* #ifndef macro / #endif search */
 393     int ifndef_macro_saved; /* saved ifndef_macro */
 394     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 395     char inc_type;          /* type of include */
 396     char inc_filename[512]; /* filename specified by the user */
 397     char filename[1024];    /* current filename - here to simplify code */
 398     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 399 } BufferedFile;
 400
 401 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 402 #define CH_EOF   (-1)   /* end of file */
 403
 404 /* parsing state (used to save parser state to reparse part of the
 405    source several times) */
 406 typedef struct ParseState {
 407     const int *macro_ptr;
 408     int line_num;
 409     int tok;
 410     CValue tokc;
 411 } ParseState;
 412
 413 /* used to record tokens */
 414 typedef struct TokenString {
 415     int *str;
 416     int len;
 417     int allocated_len;
 418     int last_line_num;
 419 } TokenString;
 420
 421 /* inline functions */
 422 typedef struct InlineFunc {
 423     int *token_str;
 424     Sym *sym;
 425     char filename[1];
 426 } InlineFunc;
 427
 428 /* include file cache, used to find files faster and also to eliminate
 429    inclusion if the include file is protected by #ifndef ... #endif */
 430 typedef struct CachedInclude {
 431     int ifndef_macro;
 432     int hash_next; /* -1 if none */
 433     char type; /* '"' or '>' to give include type */
 434     char filename[1]; /* path specified in #include */
 435 } CachedInclude;
 436
 437 #define CACHED_INCLUDES_HASH_SIZE 512
 438
 439 #ifdef CONFIG_TCC_ASM
 440 typedef struct ExprValue {
 441     uint32_t v;
 442     Sym *sym;
 443 } ExprValue;
 444
 445 #define MAX_ASM_OPERANDS 30
 446 typedef struct ASMOperand {
 447     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 448     char *constraint;
 449     char asm_str[16]; /* computed asm string for operand */
 450     SValue *vt; /* C value of the expression */
 451     int ref_index; /* if >= 0, gives reference to a output constraint */
 452     int input_index; /* if >= 0, gives reference to an input constraint */
 453     int priority; /* priority, used to assign registers */
 454     int reg; /* if >= 0, register number used for this operand */
 455     int is_llong; /* true if double register value */
 456     int is_memory; /* true if memory operand */
 457     int is_rw;     /* for '+' modifier */
 458 } ASMOperand;
 459 #endif
 460
 461 struct TCCState {
 462     unsigned output_type    : 8;
 463     unsigned reloc_output   : 1;
 464
 465     BufferedFile **include_stack_ptr;
 466     int *ifdef_stack_ptr;
 467
 468     /* include file handling */
 469     char **include_paths;
 470     int nb_include_paths;
 471     char **sysinclude_paths;
 472     int nb_sysinclude_paths;
 473     CachedInclude **cached_includes;
 474     int nb_cached_includes;
 475
 476     char **library_paths;
 477     int nb_library_paths;
 478
 479     /* array of all loaded dlls (including those referenced by loaded
 480        dlls) */
 481     DLLReference **loaded_dlls;
 482     int nb_loaded_dlls;
 483
 484     /* sections */
 485     Section **sections;
 486     int nb_sections; /* number of sections, including first dummy section */
 487
 488     Section **priv_sections;
 489     int nb_priv_sections; /* number of private sections */
 490
 491     /* got handling */
 492     Section *got;
 493     Section *plt;
 494     unsigned long *got_offsets;
 495     int nb_got_offsets;
 496     /* give the correspondance from symtab indexes to dynsym indexes */
 497     int *symtab_to_dynsym;
 498
 499     /* temporary dynamic symbol sections (for dll loading) */
 500     Section *dynsymtab_section;
 501     /* exported dynamic symbol section */
 502     Section *dynsym;
 503
 504     int nostdinc; /* if true, no standard headers are added */
 505     int nostdlib; /* if true, no standard libraries are added */
 506     int nocommon; /* if true, do not use common symbols for .bss data */
 507
 508     /* if true, static linking is performed */
 509     int static_link;
 510
 511     /* soname as specified on the command line (-soname) */
 512     const char *soname;
 513     /* rpath as specified on the command line (-Wl,-rpath=) */
 514     const char *rpath;
 515
 516     /* if true, all symbols are exported */
 517     int rdynamic;
 518
 519     /* if true, resolve symbols in the current module first (-Wl,Bsymbolic) */
 520     int symbolic;
 521
 522     /* if true, only link in referenced objects from archive */
 523     int alacarte_link;
 524
 525     /* address of text section */
 526     unsigned long text_addr;
 527     int has_text_addr;
 528
 529     /* symbols to call at load-time / unload-time */
 530     const char *init_symbol;
 531     const char *fini_symbol;
 532
 533     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 534     int output_format;
 535
 536     /* C language options */
 537     int char_is_unsigned;
 538     int leading_underscore;
 539
 540     /* warning switches */
 541     int warn_write_strings;
 542     int warn_unsupported;
 543     int warn_error;
 544     int warn_none;
 545     int warn_implicit_function_declaration;
 546
 547     /* display some information during compilation */
 548     int verbose;
 549     /* compile with debug symbol (and use them if error during execution) */
 550     int do_debug;
 551 #ifdef CONFIG_TCC_BCHECK
 552     /* compile with built-in memory and bounds checker */
 553     int do_bounds_check;
 554 #endif
 555     /* give the path of the tcc libraries */
 556     char *tcc_lib_path;
 557
 558     /* error handling */
 559     void *error_opaque;
 560     void (*error_func)(void *opaque, const char *msg);
 561     int error_set_jmp_enabled;
 562     jmp_buf error_jmp_buf;
 563     int nb_errors;
 564
 565     /* tiny assembler state */
 566     Sym *asm_labels;
 567
 568     /* see include_stack_ptr */
 569     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 570
 571     /* see ifdef_stack_ptr */
 572     int ifdef_stack[IFDEF_STACK_SIZE];
 573
 574     /* see cached_includes */
 575     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 576
 577     /* pack stack */
 578     int pack_stack[PACK_STACK_SIZE];
 579     int *pack_stack_ptr;
 580
 581     /* output file for preprocessing */
 582     FILE *outfile;
 583
 584     /* input files and libraries for this compilation */
 585     char **input_files;
 586     int nb_input_files;
 587     char **input_libs;
 588     int nb_input_libs;
 589
 590     /* automatically collected dependencies for this compilation */
 591     char **target_deps;
 592     int nb_target_deps;
 593
 594     /* for tcc_relocate */
 595     int runtime_added;
 596     void *runtime_mem;
 597 #ifdef HAVE_SELINUX
 598     void *write_mem;
 599     unsigned long mem_size;
 600 #endif
 601
 602     struct InlineFunc **inline_fns;
 603     int nb_inline_fns;
 604
 605 #ifdef TCC_TARGET_I386
 606     int seg_size;
 607 #endif
 608
 609     /* section alignment */
 610     unsigned long section_align;
 611
 612 #ifdef TCC_TARGET_PE
 613     /* PE info */
 614     int pe_subsystem;
 615     unsigned long pe_file_align;
 616     unsigned long pe_stack_size;
 617 #ifdef TCC_TARGET_X86_64
 618     Section *uw_pdata;
 619     int uw_sym;
 620     unsigned uw_offs;
 621 #endif
 622 #endif
 623
 624 #ifndef TCC_TARGET_PE
 625 #if defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM
 626     /* write PLT and GOT here */
 627     char *runtime_plt_and_got;
 628     unsigned int runtime_plt_and_got_offset;
 629 #endif
 630 #endif
 631 };
 632
 633 /* The current value can be: */
 634 #define VT_VALMASK   0x003f
 635 #define VT_CONST     0x0030  /* constant in vc
 636                               (must be first non register value) */
 637 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 638 #define VT_LOCAL     0x0032  /* offset on stack */
 639 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 640 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 641 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 642 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 643 #define VT_LVAL      0x0100  /* var is an lvalue */
 644 #define VT_SYM       0x0200  /* a symbol value is added */
 645 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 646                                 char/short stored in integer registers) */
 647 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 648                                 dereferencing value */
 649 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 650                                 bounding function call point is in vc */
 651 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 652 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 653 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 654 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 655
 656 /* types */
 657 #define VT_INT        0  /* integer type */
 658 #define VT_BYTE       1  /* signed byte type */
 659 #define VT_SHORT      2  /* short type */
 660 #define VT_VOID       3  /* void type */
 661 #define VT_PTR        4  /* pointer */
 662 #define VT_ENUM       5  /* enum definition */
 663 #define VT_FUNC       6  /* function type */
 664 #define VT_STRUCT     7  /* struct/union definition */
 665 #define VT_FLOAT      8  /* IEEE float */
 666 #define VT_DOUBLE     9  /* IEEE double */
 667 #define VT_LDOUBLE   10  /* IEEE long double */
 668 #define VT_BOOL      11  /* ISOC99 boolean type */
 669 #define VT_LLONG     12  /* 64 bit integer */
 670 #define VT_LONG      13  /* long integer (NEVER USED as type, only
 671                             during parsing) */
 672 #define VT_BTYPE      0x000f /* mask for basic type */
 673 #define VT_UNSIGNED   0x0010  /* unsigned type */
 674 #define VT_ARRAY      0x0020  /* array type (also has VT_PTR) */
 675 #define VT_VLA        0x20000 /* VLA type (also has VT_PTR and VT_ARRAY) */
 676 #define VT_BITFIELD   0x0040  /* bitfield modifier */
 677 #define VT_CONSTANT   0x0800  /* const modifier */
 678 #define VT_VOLATILE   0x1000  /* volatile modifier */
 679 #define VT_SIGNED     0x2000  /* signed type */
 680
 681 /* storage */
 682 #define VT_EXTERN  0x00000080  /* extern definition */
 683 #define VT_STATIC  0x00000100  /* static variable */
 684 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 685 #define VT_INLINE  0x00000400  /* inline definition */
 686 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 687 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 688 #define VT_WEAK    0x00010000  /* win32: data exported from dll */
 689
 690 #define VT_STRUCT_SHIFT 18   /* shift for bitfield shift values */
 691
 692 /* type mask (except storage) */
 693 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 694 #define VT_TYPE    (~(VT_STORAGE))
 695
 696 /* token values */
 697
 698 /* warning: the following compare tokens depend on i386 asm code */
 699 #define TOK_ULT 0x92
 700 #define TOK_UGE 0x93
 701 #define TOK_EQ  0x94
 702 #define TOK_NE  0x95
 703 #define TOK_ULE 0x96
 704 #define TOK_UGT 0x97
 705 #define TOK_Nset 0x98
 706 #define TOK_Nclear 0x99
 707 #define TOK_LT  0x9c
 708 #define TOK_GE  0x9d
 709 #define TOK_LE  0x9e
 710 #define TOK_GT  0x9f
 711
 712 #define TOK_LAND  0xa0
 713 #define TOK_LOR   0xa1
 714
 715 #define TOK_DEC   0xa2
 716 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 717 #define TOK_INC   0xa4
 718 #define TOK_UDIV  0xb0 /* unsigned division */
 719 #define TOK_UMOD  0xb1 /* unsigned modulo */
 720 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 721 #define TOK_CINT   0xb3 /* number in tokc */
 722 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 723 #define TOK_STR   0xb5 /* pointer to string in tokc */
 724 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 725 #define TOK_LCHAR    0xb7
 726 #define TOK_LSTR     0xb8
 727 #define TOK_CFLOAT   0xb9 /* float constant */
 728 #define TOK_LINENUM  0xba /* line number info */
 729 #define TOK_CDOUBLE  0xc0 /* double constant */
 730 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 731 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 732 #define TOK_ADDC1    0xc3 /* add with carry generation */
 733 #define TOK_ADDC2    0xc4 /* add with carry use */
 734 #define TOK_SUBC1    0xc5 /* add with carry generation */
 735 #define TOK_SUBC2    0xc6 /* add with carry use */
 736 #define TOK_CUINT    0xc8 /* unsigned int constant */
 737 #define TOK_CLLONG   0xc9 /* long long constant */
 738 #define TOK_CULLONG  0xca /* unsigned long long constant */
 739 #define TOK_ARROW    0xcb
 740 #define TOK_DOTS     0xcc /* three dots */
 741 #define TOK_SHR      0xcd /* unsigned shift right */
 742 #define TOK_PPNUM    0xce /* preprocessor number */
 743 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 744
 745 #define TOK_SHL   0x01 /* shift left */
 746 #define TOK_SAR   0x02 /* signed shift right */
 747
 748 /* assignement operators : normal operator or 0x80 */
 749 #define TOK_A_MOD 0xa5
 750 #define TOK_A_AND 0xa6
 751 #define TOK_A_MUL 0xaa
 752 #define TOK_A_ADD 0xab
 753 #define TOK_A_SUB 0xad
 754 #define TOK_A_DIV 0xaf
 755 #define TOK_A_XOR 0xde
 756 #define TOK_A_OR  0xfc
 757 #define TOK_A_SHL 0x81
 758 #define TOK_A_SAR 0x82
 759
 760 #ifndef offsetof
 761 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 762 #endif
 763
 764 #ifndef countof
 765 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 766 #endif
 767
 768 #define TOK_EOF       (-1)  /* end of file */
 769 #define TOK_LINEFEED  10    /* line feed */
 770
 771 /* all identificators and strings have token above that */
 772 #define TOK_IDENT 256
 773
 774 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 775 #define TOK_ASM_int TOK_INT
 776 #define TOK_ASM_weak TOK_WEAK1
 777
 778 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 779 /* only used for i386 asm opcodes definitions */
 780 #define DEF_BWL(x) \
 781  DEF(TOK_ASM_ ## x ## b, #x "b") \
 782  DEF(TOK_ASM_ ## x ## w, #x "w") \
 783  DEF(TOK_ASM_ ## x ## l, #x "l") \
 784  DEF(TOK_ASM_ ## x, #x)
 785 #define DEF_WL(x) \
 786  DEF(TOK_ASM_ ## x ## w, #x "w") \
 787  DEF(TOK_ASM_ ## x ## l, #x "l") \
 788  DEF(TOK_ASM_ ## x, #x)
 789 #ifdef TCC_TARGET_X86_64
 790 # define DEF_BWLQ(x) \
 791  DEF(TOK_ASM_ ## x ## b, #x "b") \
 792  DEF(TOK_ASM_ ## x ## w, #x "w") \
 793  DEF(TOK_ASM_ ## x ## l, #x "l") \
 794  DEF(TOK_ASM_ ## x ## q, #x "q") \
 795  DEF(TOK_ASM_ ## x, #x)
 796 # define DEF_WLQ(x) \
 797  DEF(TOK_ASM_ ## x ## w, #x "w") \
 798  DEF(TOK_ASM_ ## x ## l, #x "l") \
 799  DEF(TOK_ASM_ ## x ## q, #x "q") \
 800  DEF(TOK_ASM_ ## x, #x)
 801 # define DEF_BWLX DEF_BWLQ
 802 # define DEF_WLX DEF_WLQ
 803 /* number of sizes + 1 */
 804 # define NBWLX 5
 805 #else
 806 # define DEF_BWLX DEF_BWL
 807 # define DEF_WLX DEF_WL
 808 /* number of sizes + 1 */
 809 # define NBWLX 4
 810 #endif
 811
 812 #define DEF_FP1(x) \
 813  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 814  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 815  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 816  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 817
 818 #define DEF_FP(x) \
 819  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 820  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 821  DEF_FP1(x)
 822
 823 #define DEF_ASMTEST(x) \
 824  DEF_ASM(x ## o) \
 825  DEF_ASM(x ## no) \
 826  DEF_ASM(x ## b) \
 827  DEF_ASM(x ## c) \
 828  DEF_ASM(x ## nae) \
 829  DEF_ASM(x ## nb) \
 830  DEF_ASM(x ## nc) \
 831  DEF_ASM(x ## ae) \
 832  DEF_ASM(x ## e) \
 833  DEF_ASM(x ## z) \
 834  DEF_ASM(x ## ne) \
 835  DEF_ASM(x ## nz) \
 836  DEF_ASM(x ## be) \
 837  DEF_ASM(x ## na) \
 838  DEF_ASM(x ## nbe) \
 839  DEF_ASM(x ## a) \
 840  DEF_ASM(x ## s) \
 841  DEF_ASM(x ## ns) \
 842  DEF_ASM(x ## p) \
 843  DEF_ASM(x ## pe) \
 844  DEF_ASM(x ## np) \
 845  DEF_ASM(x ## po) \
 846  DEF_ASM(x ## l) \
 847  DEF_ASM(x ## nge) \
 848  DEF_ASM(x ## nl) \
 849  DEF_ASM(x ## ge) \
 850  DEF_ASM(x ## le) \
 851  DEF_ASM(x ## ng) \
 852  DEF_ASM(x ## nle) \
 853  DEF_ASM(x ## g)
 854
 855 #endif // defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 856
 857 enum tcc_token {
 858     TOK_LAST = TOK_IDENT - 1,
 859 #define DEF(id, str) id,
 860 #include "tcctok.h"
 861 #undef DEF
 862 };
 863
 864 #define TOK_UIDENT TOK_DEFINE
 865
 866 #ifdef _WIN32
 867 #define snprintf _snprintf
 868 #define vsnprintf _vsnprintf
 869 #ifndef __GNUC__
 870   #define strtold (long double)strtod
 871   #define strtof (float)strtod
 872   #define strtoll (long long)strtol
 873 #endif
 874 #elif defined(TCC_UCLIBC) || defined(__FreeBSD__) \
 875     || defined(__FreeBSD_kernel__) || defined(__DragonFly__) \
 876     || defined(__OpenBSD__)
 877 /* currently incorrect */
 878 static inline long double strtold(const char *nptr, char **endptr)
 879 {
 880     return (long double)strtod(nptr, endptr);
 881 }
 882 static inline float strtof(const char *nptr, char **endptr)
 883 {
 884     return (float)strtod(nptr, endptr);
 885 }
 886 #else
 887 /* XXX: need to define this to use them in non ISOC99 context */
 888 extern float strtof (const char *__nptr, char **__endptr);
 889 extern long double strtold (const char *__nptr, char **__endptr);
 890 #endif
 891
 892 #ifdef _WIN32
 893 #define IS_DIRSEP(c) (c == '/' || c == '\\')
 894 #define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
 895 #define PATHCMP stricmp
 896 #else
 897 #define IS_DIRSEP(c) (c == '/')
 898 #define IS_ABSPATH(p) IS_DIRSEP(p[0])
 899 #define PATHCMP strcmp
 900 #endif
 901
 902 #ifdef TCC_TARGET_PE
 903 #define PATHSEP ';'
 904 #else
 905 #define PATHSEP ':'
 906 #endif
 907
 908 /* space exlcuding newline */
 909 static inline int is_space(int ch)
 910 {
 911     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 912 }
 913
 914 static inline int isid(int c)
 915 {
 916     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 917 }
 918
 919 static inline int isnum(int c)
 920 {
 921     return c >= '0' && c <= '9';
 922 }
 923
 924 static inline int isoct(int c)
 925 {
 926     return c >= '0' && c <= '7';
 927 }
 928
 929 static inline int toup(int c)
 930 {
 931     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 932 }
 933
 934 #define PUB_FUNC
 935
 936 #ifdef ONE_SOURCE
 937 #define ST_INLN static inline
 938 #define ST_FUNC static
 939 #define ST_DATA static
 940 #else
 941 #define ST_INLN
 942 #define ST_FUNC
 943 #define ST_DATA extern
 944 #endif
 945
 946 /* ------------ libtcc.c ------------ */
 947
 948 /* use GNU C extensions */
 949 ST_DATA int gnu_ext;
 950 /* use Tiny C extensions */
 951 ST_DATA int tcc_ext;
 952 /* XXX: get rid of this ASAP */
 953 ST_DATA struct TCCState *tcc_state;
 954
 955 #ifdef CONFIG_TCC_BACKTRACE
 956 ST_DATA int num_callers;
 957 ST_DATA const char **rt_bound_error_msg;
 958 ST_DATA void *rt_prog_main;
 959 #endif
 960
 961 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
 962 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
 963 #define AFF_PREPROCESS      0x0004 /* preprocess file */
 964
 965 /* public functions currently used by the tcc main function */
 966 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
 967 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
 968 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
 969 PUB_FUNC char *tcc_basename(const char *name);
 970 PUB_FUNC char *tcc_fileextension (const char *name);
 971 PUB_FUNC void tcc_free(void *ptr);
 972 PUB_FUNC void *tcc_malloc(unsigned long size);
 973 PUB_FUNC void *tcc_mallocz(unsigned long size);
 974 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
 975 PUB_FUNC char *tcc_strdup(const char *str);
 976 #define free(p) use_tcc_free(p)
 977 #define malloc(s) use_tcc_malloc(s)
 978 #define realloc(p, s) use_tcc_realloc(p, s)
 979 #undef strdup
 980 #define strdup(s) use_tcc_strdup(s)
 981 PUB_FUNC void tcc_memstats(void);
 982 PUB_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
 983 PUB_FUNC void dynarray_reset(void *pp, int *n);
 984 PUB_FUNC void error_noabort(const char *fmt, ...);
 985 PUB_FUNC void error(const char *fmt, ...);
 986 PUB_FUNC void expect(const char *msg);
 987 PUB_FUNC void warning(const char *fmt, ...);
 988
 989 /* other utilities */
 990 ST_INLN void cstr_ccat(CString *cstr, int ch);
 991 ST_FUNC void cstr_cat(CString *cstr, const char *str);
 992 ST_FUNC void cstr_wccat(CString *cstr, int ch);
 993 ST_FUNC void cstr_new(CString *cstr);
 994 ST_FUNC void cstr_free(CString *cstr);
 995 ST_FUNC void add_char(CString *cstr, int c);
 996 #define cstr_reset(cstr) cstr_free(cstr)
 997
 998 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
 999 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1000 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1001 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1002 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1003
1004 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, unsigned long value, unsigned long size, int can_add_underscore);
1005 ST_FUNC void put_extern_sym(Sym *sym, Section *section, unsigned long value, unsigned long size);
1006 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1007
1008 ST_INLN void sym_free(Sym *sym);
1009 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1010 ST_FUNC Sym *sym_find2(Sym *s, int v);
1011 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1012 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1013 ST_INLN Sym *struct_find(int v);
1014 ST_INLN Sym *sym_find(int v);
1015 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1016
1017 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1018 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1019 ST_FUNC void tcc_close(void);
1020
1021 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1022 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1023 PUB_FUNC int tcc_set_flag(TCCState *s, const char *flag_name, int value);
1024 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1025 PUB_FUNC void set_num_callers(int n);
1026
1027 /* ------------ tccpp.c ------------ */
1028
1029 ST_DATA struct BufferedFile *file;
1030 ST_DATA int ch, tok;
1031 ST_DATA CValue tokc;
1032 ST_DATA const int *macro_ptr;
1033 ST_DATA int parse_flags;
1034 ST_DATA int tok_flags;
1035 ST_DATA CString tokcstr; /* current parsed string, if any */
1036
1037 /* display benchmark infos */
1038 ST_DATA int total_lines;
1039 ST_DATA int total_bytes;
1040 ST_DATA int tok_ident;
1041 ST_DATA TokenSym **table_ident;
1042
1043 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1044 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1045 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1046 #define TOK_FLAG_EOF   0x0008 /* end of file */
1047
1048 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1049 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1050 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1051                                         token. line feed is also
1052                                         returned at eof */
1053 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1054 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1055
1056 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1057 ST_FUNC char *get_tok_str(int v, CValue *cv);
1058 ST_FUNC void save_parse_state(ParseState *s);
1059 ST_FUNC void restore_parse_state(ParseState *s);
1060 ST_INLN void tok_str_new(TokenString *s);
1061 ST_FUNC void tok_str_free(int *str);
1062 ST_FUNC void tok_str_add(TokenString *s, int t);
1063 ST_FUNC void tok_str_add_tok(TokenString *s);
1064 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1065 ST_FUNC void define_undef(Sym *s);
1066 ST_INLN Sym *define_find(int v);
1067 ST_FUNC void free_defines(Sym *b);
1068 ST_FUNC Sym *label_find(int v);
1069 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1070 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1071 ST_FUNC void parse_define(void);
1072 ST_FUNC void preprocess(int is_bof);
1073 ST_FUNC void next_nomacro(void);
1074 ST_FUNC void next(void);
1075 ST_INLN void unget_tok(int last_tok);
1076 ST_FUNC void preprocess_init(TCCState *s1);
1077 ST_FUNC void preprocess_new();
1078 ST_FUNC int tcc_preprocess(TCCState *s1);
1079 ST_FUNC void skip(int c);
1080
1081 /* ------------ tccgen.c ------------ */
1082
1083 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1084 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1085 #ifdef CONFIG_TCC_ASM
1086 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1087 #endif
1088 #ifdef CONFIG_TCC_BCHECK
1089 /* bound check related sections */
1090 ST_DATA Section *bounds_section; /* contains global data bound description */
1091 ST_DATA Section *lbounds_section; /* contains local data bound description */
1092 #endif
1093 /* symbol sections */
1094 ST_DATA Section *symtab_section, *strtab_section;
1095 /* debug sections */
1096 ST_DATA Section *stab_section, *stabstr_section;
1097
1098 #define SYM_POOL_NB (8192 / sizeof(Sym))
1099 ST_DATA Sym *sym_free_first;
1100 ST_DATA void **sym_pools;
1101 ST_DATA int nb_sym_pools;
1102
1103 ST_DATA Sym *global_stack;
1104 ST_DATA Sym *local_stack;
1105 ST_DATA Sym *local_label_stack;
1106 ST_DATA Sym *global_label_stack;
1107 ST_DATA Sym *define_stack;
1108 ST_DATA CType char_pointer_type, func_old_type, int_type;
1109 ST_DATA SValue vstack[VSTACK_SIZE], *vtop;
1110 ST_DATA int rsym, anon_sym, ind, loc;
1111
1112 ST_DATA int const_wanted; /* true if constant wanted */
1113 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1114 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1115 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1116 ST_DATA int func_vc;
1117 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1118 ST_DATA char *funcname;
1119
1120 ST_INLN int is_float(int t);
1121 ST_FUNC int ieee_finite(double d);
1122 ST_FUNC void test_lvalue(void);
1123 ST_FUNC void swap(int *p, int *q);
1124 ST_FUNC void vpushi(int v);
1125 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1126 ST_FUNC void vset(CType *type, int r, int v);
1127 ST_FUNC void vswap(void);
1128 ST_FUNC void vpush_global_sym(CType *type, int v);
1129 ST_FUNC void vrott(int n);
1130 #ifdef TCC_TARGET_ARM
1131 ST_FUNC int get_reg_ex(int rc, int rc2);
1132 ST_FUNC void vnrott(int n);
1133 ST_FUNC void lexpand_nr(void);
1134 #endif
1135 ST_FUNC void vpushv(SValue *v);
1136 ST_FUNC void save_reg(int r);
1137 ST_FUNC int get_reg(int rc);
1138 ST_FUNC void save_regs(int n);
1139 ST_FUNC int gv(int rc);
1140 ST_FUNC void gv2(int rc1, int rc2);
1141 ST_FUNC void vpop(void);
1142 ST_FUNC void gen_op(int op);
1143 ST_FUNC int type_size(CType *type, int *a);
1144 ST_FUNC void mk_pointer(CType *type);
1145 ST_FUNC void vstore(void);
1146 ST_FUNC void inc(int post, int c);
1147 ST_FUNC void parse_asm_str(CString *astr);
1148 ST_FUNC int lvalue_type(int t);
1149 ST_FUNC void indir(void);
1150 ST_FUNC void unary(void);
1151 ST_FUNC void expr_prod(void);
1152 ST_FUNC void expr_sum(void);
1153 ST_FUNC void gexpr(void);
1154 ST_FUNC int expr_const(void);
1155 ST_FUNC void gen_inline_functions(void);
1156 ST_FUNC void decl(int l);
1157 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1158 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1159 #endif
1160
1161 /* ------------ tccelf.c ------------ */
1162
1163 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1164
1165 typedef struct {
1166     unsigned int n_strx;         /* index into string table of name */
1167     unsigned char n_type;         /* type of symbol */
1168     unsigned char n_other;        /* misc info (usually empty) */
1169     unsigned short n_desc;        /* description field */
1170     unsigned int n_value;        /* value of symbol */
1171 } Stab_Sym;
1172
1173 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);
1174
1175 ST_FUNC int put_elf_str(Section *s, const char *sym);
1176 ST_FUNC int put_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int shndx, const char *name);
1177 ST_FUNC int add_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int sh_num, const char *name);
1178 ST_FUNC int find_elf_sym(Section *s, const char *name);
1179 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1180
1181 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1182 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1183 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1184 ST_FUNC void put_stabd(int type, int other, int desc);
1185
1186 ST_FUNC void relocate_common_syms(void);
1187 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1188 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1189
1190 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1191 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1192 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1193 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1194 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1195
1196 ST_FUNC void build_got_entries(TCCState *s1);
1197 ST_FUNC void tcc_add_runtime(TCCState *s1);
1198
1199 #ifndef TCC_TARGET_PE
1200 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1201 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1202 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1203 ST_FUNC void minp(void);
1204 ST_INLN void inp(void);
1205 ST_FUNC int handle_eob(void);
1206 #endif
1207
1208 #ifdef TCC_TARGET_X86_64
1209 # define ELFCLASSW ELFCLASS64
1210 # define ElfW(type) Elf##64##_##type
1211 # define ELFW(type) ELF##64##_##type
1212 # define ElfW_Rel ElfW(Rela)
1213 # define SHT_RELX SHT_RELA
1214 # define REL_SECTION_FMT ".rela%s"
1215 /* XXX: DLL with PLT would only work with x86-64 for now */
1216 # define TCC_OUTPUT_DLL_WITH_PLT
1217 #else
1218 # define ELFCLASSW ELFCLASS32
1219 # define ElfW(type) Elf##32##_##type
1220 # define ELFW(type) ELF##32##_##type
1221 # define ElfW_Rel ElfW(Rel)
1222 # define SHT_RELX SHT_REL
1223 # define REL_SECTION_FMT ".rel%s"
1224 #endif
1225
1226 /* ------------ xxx-gen.c ------------ */
1227
1228 ST_FUNC void gsym_addr(int t, int a);
1229 ST_FUNC void gsym(int t);
1230 ST_FUNC void load(int r, SValue *sv);
1231 ST_FUNC void store(int r, SValue *v);
1232 ST_FUNC void gfunc_call(int nb_args);
1233 ST_FUNC void gfunc_prolog(CType *func_type);
1234 ST_FUNC void gfunc_epilog(void);
1235 ST_FUNC int gjmp(int t);
1236 ST_FUNC void gjmp_addr(int a);
1237 ST_FUNC int gtst(int inv, int t);
1238 ST_FUNC void gen_opi(int op);
1239 ST_FUNC void gen_opf(int op);
1240 ST_FUNC void gen_cvt_ftoi(int t);
1241 ST_FUNC void gen_cvt_ftof(int t);
1242 ST_FUNC void ggoto(void);
1243 #ifndef TCC_TARGET_C67
1244 ST_FUNC void o(unsigned int c);
1245 #endif
1246 #ifndef TCC_TARGET_ARM
1247 ST_FUNC void gen_cvt_itof(int t);
1248 #endif
1249
1250 /* ------------ i386-gen.c ------------ */
1251 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1252 ST_FUNC void g(int c);
1253 ST_FUNC int oad(int c, int s);
1254 ST_FUNC void gen_le16(int c);
1255 ST_FUNC void gen_le32(int c);
1256 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1257 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1258 #endif
1259
1260 #ifdef CONFIG_TCC_BCHECK
1261 ST_FUNC void gen_bounded_ptr_add(void);
1262 ST_FUNC void gen_bounded_ptr_deref(void);
1263 #endif
1264
1265 /* ------------ x86_64-gen.c ------------ */
1266 #ifdef TCC_TARGET_X86_64
1267 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1268 #endif
1269
1270 /* ------------ arm-gen.c ------------ */
1271 #ifdef TCC_TARGET_ARM
1272 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1273 ST_FUNC void gen_cvt_itof1(int t);
1274 #endif
1275
1276 /* ------------ c67-gen.c ------------ */
1277 #ifdef TCC_TARGET_C67
1278 #endif
1279
1280 /* ------------ tcccoff.c ------------ */
1281
1282 #ifdef TCC_TARGET_COFF
1283 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1284 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1285 #endif
1286
1287 /* ------------ tccasm.c ------------ */
1288 ST_FUNC void asm_instr(void);
1289 ST_FUNC void asm_global_instr(void);
1290
1291 #ifdef CONFIG_TCC_ASM
1292 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1293 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1294 ST_FUNC int asm_int_expr(TCCState *s1);
1295 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1296 /* ------------ i386-asm.c ------------ */
1297 ST_FUNC void gen_expr32(ExprValue *pe);
1298 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1299 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1300 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1301 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1302 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1303 #endif
1304 /* ------------ tccpe.c -------------- */
1305 #ifdef TCC_TARGET_PE
1306 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1307 ST_FUNC int pe_add_dll(struct TCCState *s, const char *libraryname);
1308 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1309 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, const void *value);
1310 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1311 /* tiny_impdef.c */
1312 ST_FUNC char *get_export_names(FILE *fp);
1313 #ifdef TCC_TARGET_X86_64
1314 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1315 #endif
1316 #endif
1317
1318 /* ------------ tccrun.c ----------------- */
1319 #ifdef CONFIG_TCC_STATIC
1320 #define RTLD_LAZY       0x001
1321 #define RTLD_NOW        0x002
1322 #define RTLD_GLOBAL     0x100
1323 #define RTLD_DEFAULT    NULL
1324 /* dummy function for profiling */
1325 ST_FUNC void *dlopen(const char *filename, int flag);
1326 ST_FUNC void dlclose(void *p);
1327 //ST_FUNC const char *dlerror(void);
1328 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1329 #elif !defined TCC_TARGET_PE || !defined _WIN32
1330 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1331 #endif
1332 /********************************************************/
1333 /* include the target specific definitions */
1334
1335 #define TARGET_DEFS_ONLY
1336 #ifdef TCC_TARGET_I386
1337 #include "i386-gen.c"
1338 #endif
1339 #ifdef TCC_TARGET_X86_64
1340 #include "x86_64-gen.c"
1341 #endif
1342 #ifdef TCC_TARGET_ARM
1343 #include "arm-gen.c"
1344 #endif
1345 #ifdef TCC_TARGET_C67
1346 #include "coff.h"
1347 #include "c67-gen.c"
1348 #endif
1349 #undef TARGET_DEFS_ONLY
1350
1351 ST_DATA const int reg_classes[NB_REGS];
1352
1353 /********************************************************/
1354 #undef ST_DATA
1355 #ifdef ONE_SOURCE
1356 #define ST_DATA static
1357 #else
1358 #define ST_DATA
1359 #endif
1360 /********************************************************/
1361 #endif /* _TCC_H */