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 #endif
  55 #endif
  56
  57 #ifndef _WIN32
  58 #include <unistd.h>
  59 #include <sys/time.h>
  60 #include <sys/ucontext.h>
  61 #include <sys/mman.h>
  62 #include <dlfcn.h>
  63 #endif
  64
  65 #endif /* !CONFIG_TCCBOOT */
  66
  67 #ifndef PAGESIZE
  68 #define PAGESIZE 4096
  69 #endif
  70
  71 #ifndef O_BINARY
  72 #define O_BINARY 0
  73 #endif
  74
  75 #ifndef SA_SIGINFO
  76 #define SA_SIGINFO 0x00000004u
  77 #endif
  78
  79 #include "elf.h"
  80 #include "stab.h"
  81 #include "libtcc.h"
  82
  83 /* parser debug */
  84 //#define PARSE_DEBUG
  85 /* preprocessor debug */
  86 //#define PP_DEBUG
  87 /* include file debug */
  88 //#define INC_DEBUG
  89
  90 //#define MEM_DEBUG
  91
  92 /* assembler debug */
  93 //#define ASM_DEBUG
  94
  95 /* target selection */
  96 //#define TCC_TARGET_I386   /* i386 code generator */
  97 //#define TCC_TARGET_ARM    /* ARMv4 code generator */
  98 //#define TCC_TARGET_C67    /* TMS320C67xx code generator */
  99 //#define TCC_TARGET_X86_64 /* x86-64 code generator */
 100
 101 /* default target is I386 */
 102 #if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \
 103     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 104 #define TCC_TARGET_I386
 105 #endif
 106
 107 #if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \
 108     !defined(TCC_TARGET_C67) && !defined(TCC_TARGET_X86_64)
 109 #define CONFIG_TCC_BCHECK /* enable bound checking code */
 110 #endif
 111
 112 #if defined(_WIN32) && !defined(TCC_TARGET_PE)
 113 #define CONFIG_TCC_STATIC
 114 #endif
 115
 116 /* define it to include assembler support */
 117 #if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_C67)
 118 #define CONFIG_TCC_ASM
 119 #endif
 120
 121 /* object format selection */
 122 #if defined(TCC_TARGET_C67)
 123 #define TCC_TARGET_COFF
 124 #endif
 125
 126 /* only native compiler supports -run */
 127 #if defined _WIN32 == defined TCC_TARGET_PE
 128 # if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386
 129 #  define TCC_IS_NATIVE
 130 # elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64
 131 #  define TCC_IS_NATIVE
 132 # elif defined __arm__ && defined TCC_TARGET_ARM
 133 #  define TCC_IS_NATIVE
 134 # endif
 135 #endif
 136
 137 #if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT
 138 # define CONFIG_TCC_BACKTRACE
 139 #endif
 140
 141 /* target address type */
 142 #if defined TCC_TARGET_X86_64 && (!defined __x86_64__ || defined _WIN32)
 143 # define uplong unsigned long long
 144 #else
 145 # define uplong unsigned long
 146 #endif
 147
 148 /* ------------ path configuration ------------ */
 149
 150 #ifndef CONFIG_SYSROOT
 151 # define CONFIG_SYSROOT ""
 152 #endif
 153
 154 #ifndef CONFIG_TCC_LDDIR
 155 # if defined(TCC_TARGET_X86_64_CENTOS)
 156 #  define CONFIG_TCC_LDDIR "/lib64"
 157 # else
 158 #  define CONFIG_TCC_LDDIR "/lib"
 159 # endif
 160 #endif
 161
 162 /* path to find crt1.o, crti.o and crtn.o */
 163 #ifndef CONFIG_TCC_CRTPREFIX
 164 # define CONFIG_TCC_CRTPREFIX CONFIG_SYSROOT "/usr" CONFIG_TCC_LDDIR
 165 #endif
 166
 167 /* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */
 168
 169 /* system include paths */
 170 #ifndef CONFIG_TCC_SYSINCLUDEPATHS
 171 # ifdef TCC_TARGET_PE
 172 #  define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi"
 173 # else
 174 #  define CONFIG_TCC_SYSINCLUDEPATHS \
 175         CONFIG_SYSROOT "/usr/local/include" \
 176     ":" CONFIG_SYSROOT "/usr/include" \
 177     ":" "{B}/include"
 178 # endif
 179 #endif
 180
 181 /* library search paths */
 182 #ifndef CONFIG_TCC_LIBPATHS
 183 # ifdef TCC_TARGET_PE
 184 #  define CONFIG_TCC_LIBPATHS "{B}/lib"
 185 # else
 186 #  define CONFIG_TCC_LIBPATHS \
 187         CONFIG_SYSROOT "/usr" CONFIG_TCC_LDDIR \
 188     ":" CONFIG_SYSROOT CONFIG_TCC_LDDIR \
 189     ":" CONFIG_SYSROOT "/usr/local" CONFIG_TCC_LDDIR
 190 # endif
 191 #endif
 192
 193 /* name of ELF interpreter */
 194 #ifndef CONFIG_TCC_ELFINTERP
 195 # if defined __FreeBSD__
 196 #  define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1"
 197 # elif defined __FreeBSD_kernel__
 198 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld.so.1"
 199 # elif defined TCC_ARM_EABI
 200 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-linux.so.3"
 201 # elif defined(TCC_TARGET_X86_64)
 202 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-linux-x86-64.so.2"
 203 # elif defined(TCC_UCLIBC)
 204 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-uClibc.so.0"
 205 # else
 206 #  define CONFIG_TCC_ELFINTERP CONFIG_TCC_LDDIR"/ld-linux.so.2"
 207 # endif
 208 #endif
 209
 210 /* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */
 211 #define TCC_LIBGCC CONFIG_SYSROOT CONFIG_TCC_LDDIR "/libgcc_s.so.1"
 212
 213 /* -------------------------------------------- */
 214
 215 #define FALSE 0
 216 #define false 0
 217 #define TRUE 1
 218 #define true 1
 219 typedef int BOOL;
 220
 221 #define INCLUDE_STACK_SIZE  32
 222 #define IFDEF_STACK_SIZE    64
 223 #define VSTACK_SIZE         256
 224 #define STRING_MAX_SIZE     1024
 225 #define PACK_STACK_SIZE     8
 226
 227 #define TOK_HASH_SIZE       8192 /* must be a power of two */
 228 #define TOK_ALLOC_INCR      512  /* must be a power of two */
 229 #define TOK_MAX_SIZE        4 /* token max size in int unit when stored in string */
 230
 231 /* token symbol management */
 232 typedef struct TokenSym {
 233     struct TokenSym *hash_next;
 234     struct Sym *sym_define; /* direct pointer to define */
 235     struct Sym *sym_label; /* direct pointer to label */
 236     struct Sym *sym_struct; /* direct pointer to structure */
 237     struct Sym *sym_identifier; /* direct pointer to identifier */
 238     int tok; /* token number */
 239     int len;
 240     char str[1];
 241 } TokenSym;
 242
 243 #ifdef TCC_TARGET_PE
 244 typedef unsigned short nwchar_t;
 245 #else
 246 typedef int nwchar_t;
 247 #endif
 248
 249 typedef struct CString {
 250     int size; /* size in bytes */
 251     void *data; /* either 'char *' or 'nwchar_t *' */
 252     int size_allocated;
 253     void *data_allocated; /* if non NULL, data has been malloced */
 254 } CString;
 255
 256 /* type definition */
 257 typedef struct CType {
 258     int t;
 259     struct Sym *ref;
 260 } CType;
 261
 262 /* constant value */
 263 typedef union CValue {
 264     long double ld;
 265     double d;
 266     float f;
 267     int i;
 268     unsigned int ui;
 269     unsigned int ul; /* address (should be unsigned long on 64 bit cpu) */
 270     long long ll;
 271     unsigned long long ull;
 272     struct CString *cstr;
 273     void *ptr;
 274     int tab[2];
 275 } CValue;
 276
 277 /* value on stack */
 278 typedef struct SValue {
 279     CType type;      /* type */
 280     unsigned short r;      /* register + flags */
 281     unsigned short r2;     /* second register, used for 'long long'
 282                               type. If not used, set to VT_CONST */
 283     CValue c;              /* constant, if VT_CONST */
 284     struct Sym *sym;       /* symbol, if (VT_SYM | VT_CONST) */
 285 } SValue;
 286
 287 /* symbol management */
 288 typedef struct Sym {
 289     int v;    /* symbol token */
 290     char *asm_label;    /* associated asm label */
 291     long r;    /* associated register */
 292     union {
 293         long c;    /* associated number */
 294         int *d;   /* define token stream */
 295     };
 296     CType type;    /* associated type */
 297     union {
 298         struct Sym *next; /* next related symbol */
 299         long jnext; /* next jump label */
 300     };
 301     struct Sym *prev; /* prev symbol in stack */
 302     struct Sym *prev_tok; /* previous symbol for this token */
 303 } Sym;
 304
 305 /* section definition */
 306 /* XXX: use directly ELF structure for parameters ? */
 307 /* special flag to indicate that the section should not be linked to
 308    the other ones */
 309 #define SHF_PRIVATE 0x80000000
 310
 311 /* special flag, too */
 312 #define SECTION_ABS ((void *)1)
 313
 314 typedef struct Section {
 315     unsigned long data_offset; /* current data offset */
 316     unsigned char *data;       /* section data */
 317     unsigned long data_allocated; /* used for realloc() handling */
 318     int sh_name;             /* elf section name (only used during output) */
 319     int sh_num;              /* elf section number */
 320     int sh_type;             /* elf section type */
 321     int sh_flags;            /* elf section flags */
 322     int sh_info;             /* elf section info */
 323     int sh_addralign;        /* elf section alignment */
 324     int sh_entsize;          /* elf entry size */
 325     unsigned long sh_size;   /* section size (only used during output) */
 326     uplong sh_addr;          /* address at which the section is relocated */
 327     unsigned long sh_offset; /* file offset */
 328     int nb_hashed_syms;      /* used to resize the hash table */
 329     struct Section *link;    /* link to another section */
 330     struct Section *reloc;   /* corresponding section for relocation, if any */
 331     struct Section *hash;     /* hash table for symbols */
 332     struct Section *next;
 333     char name[1];           /* section name */
 334 } Section;
 335
 336 typedef struct DLLReference {
 337     int level;
 338     void *handle;
 339     char name[1];
 340 } DLLReference;
 341
 342 /* GNUC attribute definition */
 343 typedef struct AttributeDef {
 344     unsigned
 345       func_call     : 3, /* calling convention (0..5), see below */
 346       aligned       : 5, /* alignement (0..16) */
 347       packed        : 1,
 348       func_export   : 1,
 349       func_import   : 1,
 350       func_args     : 5,
 351       mode          : 4,
 352       weak          : 1,
 353       fill          : 11;
 354     struct Section *section;
 355     int alias_target;    /* token */
 356 } AttributeDef;
 357
 358 /* gr: wrappers for casting sym->r for other purposes */
 359 #define FUNC_CALL(r) (((AttributeDef*)&(r))->func_call)
 360 #define FUNC_EXPORT(r) (((AttributeDef*)&(r))->func_export)
 361 #define FUNC_IMPORT(r) (((AttributeDef*)&(r))->func_import)
 362 #define FUNC_ARGS(r) (((AttributeDef*)&(r))->func_args)
 363 #define FUNC_ALIGN(r) (((AttributeDef*)&(r))->aligned)
 364 #define FUNC_PACKED(r) (((AttributeDef*)&(r))->packed)
 365 #define ATTR_MODE(r)  (((AttributeDef*)&(r))->mode)
 366 #define INT_ATTR(ad) (*(int*)(ad))
 367
 368 /* -------------------------------------------------- */
 369
 370 #define SYM_STRUCT     0x40000000 /* struct/union/enum symbol space */
 371 #define SYM_FIELD      0x20000000 /* struct/union field symbol space */
 372 #define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */
 373
 374 /* stored in 'Sym.c' field */
 375 #define FUNC_NEW       1 /* ansi function prototype */
 376 #define FUNC_OLD       2 /* old function prototype */
 377 #define FUNC_ELLIPSIS  3 /* ansi function prototype with ... */
 378
 379 /* stored in 'Sym.r' field */
 380 #define FUNC_CDECL     0 /* standard c call */
 381 #define FUNC_STDCALL   1 /* pascal c call */
 382 #define FUNC_FASTCALL1 2 /* first param in %eax */
 383 #define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */
 384 #define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */
 385 #define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */
 386
 387 /* field 'Sym.t' for macros */
 388 #define MACRO_OBJ      0 /* object like macro */
 389 #define MACRO_FUNC     1 /* function like macro */
 390
 391 /* field 'Sym.r' for C labels */
 392 #define LABEL_DEFINED  0 /* label is defined */
 393 #define LABEL_FORWARD  1 /* label is forward defined */
 394 #define LABEL_DECLARED 2 /* label is declared but never used */
 395
 396 /* type_decl() types */
 397 #define TYPE_ABSTRACT  1 /* type without variable */
 398 #define TYPE_DIRECT    2 /* type with variable */
 399
 400 #define IO_BUF_SIZE 8192
 401
 402 typedef struct BufferedFile {
 403     uint8_t *buf_ptr;
 404     uint8_t *buf_end;
 405     int fd;
 406     struct BufferedFile *prev;
 407     int line_num;    /* current line number - here to simplify code */
 408     int ifndef_macro;  /* #ifndef macro / #endif search */
 409     int ifndef_macro_saved; /* saved ifndef_macro */
 410     int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */
 411     char inc_type;          /* type of include */
 412     char inc_filename[512]; /* filename specified by the user */
 413     char filename[1024];    /* current filename - here to simplify code */
 414     unsigned char buffer[IO_BUF_SIZE + 1]; /* extra size for CH_EOB char */
 415 } BufferedFile;
 416
 417 #define CH_EOB   '\\'       /* end of buffer or '\0' char in file */
 418 #define CH_EOF   (-1)   /* end of file */
 419
 420 /* parsing state (used to save parser state to reparse part of the
 421    source several times) */
 422 typedef struct ParseState {
 423     const int *macro_ptr;
 424     int line_num;
 425     int tok;
 426     CValue tokc;
 427 } ParseState;
 428
 429 /* used to record tokens */
 430 typedef struct TokenString {
 431     int *str;
 432     int len;
 433     int allocated_len;
 434     int last_line_num;
 435 } TokenString;
 436
 437 /* inline functions */
 438 typedef struct InlineFunc {
 439     int *token_str;
 440     Sym *sym;
 441     char filename[1];
 442 } InlineFunc;
 443
 444 /* include file cache, used to find files faster and also to eliminate
 445    inclusion if the include file is protected by #ifndef ... #endif */
 446 typedef struct CachedInclude {
 447     int ifndef_macro;
 448     int hash_next; /* -1 if none */
 449     char type; /* '"' or '>' to give include type */
 450     char filename[1]; /* path specified in #include */
 451 } CachedInclude;
 452
 453 #define CACHED_INCLUDES_HASH_SIZE 512
 454
 455 #ifdef CONFIG_TCC_ASM
 456 typedef struct ExprValue {
 457     uint32_t v;
 458     Sym *sym;
 459 } ExprValue;
 460
 461 #define MAX_ASM_OPERANDS 30
 462 typedef struct ASMOperand {
 463     int id; /* GCC 3 optionnal identifier (0 if number only supported */
 464     char *constraint;
 465     char asm_str[16]; /* computed asm string for operand */
 466     SValue *vt; /* C value of the expression */
 467     int ref_index; /* if >= 0, gives reference to a output constraint */
 468     int input_index; /* if >= 0, gives reference to an input constraint */
 469     int priority; /* priority, used to assign registers */
 470     int reg; /* if >= 0, register number used for this operand */
 471     int is_llong; /* true if double register value */
 472     int is_memory; /* true if memory operand */
 473     int is_rw;     /* for '+' modifier */
 474 } ASMOperand;
 475 #endif
 476
 477 struct TCCState {
 478     unsigned output_type    : 8;
 479     unsigned reloc_output   : 1;
 480
 481     BufferedFile **include_stack_ptr;
 482     int *ifdef_stack_ptr;
 483
 484     /* include file handling */
 485     char **include_paths;
 486     int nb_include_paths;
 487     char **sysinclude_paths;
 488     int nb_sysinclude_paths;
 489     CachedInclude **cached_includes;
 490     int nb_cached_includes;
 491
 492     char **library_paths;
 493     int nb_library_paths;
 494     char **crt_paths;
 495     int nb_crt_paths;
 496
 497     /* array of all loaded dlls (including those referenced by loaded
 498        dlls) */
 499     DLLReference **loaded_dlls;
 500     int nb_loaded_dlls;
 501
 502     /* sections */
 503     Section **sections;
 504     int nb_sections; /* number of sections, including first dummy section */
 505
 506     Section **priv_sections;
 507     int nb_priv_sections; /* number of private sections */
 508
 509     /* got handling */
 510     Section *got;
 511     Section *plt;
 512     unsigned long *got_offsets;
 513     int nb_got_offsets;
 514     /* give the correspondance from symtab indexes to dynsym indexes */
 515     int *symtab_to_dynsym;
 516
 517     /* temporary dynamic symbol sections (for dll loading) */
 518     Section *dynsymtab_section;
 519     /* exported dynamic symbol section */
 520     Section *dynsym;
 521
 522     int nostdinc; /* if true, no standard headers are added */
 523     int nostdlib; /* if true, no standard libraries are added */
 524     int nocommon; /* if true, do not use common symbols for .bss data */
 525
 526     /* if true, static linking is performed */
 527     int static_link;
 528
 529     /* soname as specified on the command line (-soname) */
 530     const char *soname;
 531     /* rpath as specified on the command line (-Wl,-rpath=) */
 532     const char *rpath;
 533
 534     /* if true, all symbols are exported */
 535     int rdynamic;
 536
 537     /* if true, resolve symbols in the current module first (-Wl,Bsymbolic) */
 538     int symbolic;
 539
 540     /* if true, only link in referenced objects from archive */
 541     int alacarte_link;
 542
 543     /* address of text section */
 544     uplong text_addr;
 545     int has_text_addr;
 546
 547     /* symbols to call at load-time / unload-time */
 548     const char *init_symbol;
 549     const char *fini_symbol;
 550
 551     /* output format, see TCC_OUTPUT_FORMAT_xxx */
 552     int output_format;
 553
 554     /* C language options */
 555     int char_is_unsigned;
 556     int leading_underscore;
 557
 558     /* warning switches */
 559     int warn_write_strings;
 560     int warn_unsupported;
 561     int warn_error;
 562     int warn_none;
 563     int warn_implicit_function_declaration;
 564
 565     /* display some information during compilation */
 566     int verbose;
 567     /* compile with debug symbol (and use them if error during execution) */
 568     int do_debug;
 569 #ifdef CONFIG_TCC_BCHECK
 570     /* compile with built-in memory and bounds checker */
 571     int do_bounds_check;
 572 #endif
 573     /* give the path of the tcc libraries */
 574     char *tcc_lib_path;
 575
 576     /* error handling */
 577     void *error_opaque;
 578     void (*error_func)(void *opaque, const char *msg);
 579     int error_set_jmp_enabled;
 580     jmp_buf error_jmp_buf;
 581     int nb_errors;
 582
 583     /* tiny assembler state */
 584     Sym *asm_labels;
 585
 586     /* see include_stack_ptr */
 587     BufferedFile *include_stack[INCLUDE_STACK_SIZE];
 588
 589     /* see ifdef_stack_ptr */
 590     int ifdef_stack[IFDEF_STACK_SIZE];
 591
 592     /* see cached_includes */
 593     int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE];
 594
 595     /* pack stack */
 596     int pack_stack[PACK_STACK_SIZE];
 597     int *pack_stack_ptr;
 598
 599     /* output file for preprocessing */
 600     FILE *outfile;
 601
 602     /* automatically collected dependencies for this compilation */
 603     char **target_deps;
 604     int nb_target_deps;
 605
 606     /* for tcc_relocate */
 607     int runtime_added;
 608     void *runtime_mem;
 609 #ifdef HAVE_SELINUX
 610     void *write_mem;
 611     unsigned long mem_size;
 612 #endif
 613
 614     struct InlineFunc **inline_fns;
 615     int nb_inline_fns;
 616
 617 #ifdef TCC_TARGET_I386
 618     int seg_size;
 619 #endif
 620
 621     /* section alignment */
 622     unsigned long section_align;
 623
 624 #ifdef TCC_TARGET_PE
 625     /* PE info */
 626     int pe_subsystem;
 627     unsigned long pe_file_align;
 628     unsigned long pe_stack_size;
 629 #ifdef TCC_TARGET_X86_64
 630     Section *uw_pdata;
 631     int uw_sym;
 632     unsigned uw_offs;
 633 #endif
 634 #endif
 635
 636 #ifndef TCC_TARGET_PE
 637 #if defined TCC_TARGET_X86_64 || defined TCC_TARGET_ARM
 638     /* write PLT and GOT here */
 639     char *runtime_plt_and_got;
 640     unsigned int runtime_plt_and_got_offset;
 641 #endif
 642 #endif
 643 };
 644
 645 /* The current value can be: */
 646 #define VT_VALMASK   0x003f
 647 #define VT_CONST     0x0030  /* constant in vc
 648                               (must be first non register value) */
 649 #define VT_LLOCAL    0x0031  /* lvalue, offset on stack */
 650 #define VT_LOCAL     0x0032  /* offset on stack */
 651 #define VT_CMP       0x0033  /* the value is stored in processor flags (in vc) */
 652 #define VT_JMP       0x0034  /* value is the consequence of jmp true (even) */
 653 #define VT_JMPI      0x0035  /* value is the consequence of jmp false (odd) */
 654 #define VT_REF       0x0040  /* value is pointer to structure rather than address */
 655 #define VT_LVAL      0x0100  /* var is an lvalue */
 656 #define VT_SYM       0x0200  /* a symbol value is added */
 657 #define VT_MUSTCAST  0x0400  /* value must be casted to be correct (used for
 658                                 char/short stored in integer registers) */
 659 #define VT_MUSTBOUND 0x0800  /* bound checking must be done before
 660                                 dereferencing value */
 661 #define VT_BOUNDED   0x8000  /* value is bounded. The address of the
 662                                 bounding function call point is in vc */
 663 #define VT_LVAL_BYTE     0x1000  /* lvalue is a byte */
 664 #define VT_LVAL_SHORT    0x2000  /* lvalue is a short */
 665 #define VT_LVAL_UNSIGNED 0x4000  /* lvalue is unsigned */
 666 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 667
 668 /* types */
 669 #define VT_INT        0  /* integer type */
 670 #define VT_BYTE       1  /* signed byte type */
 671 #define VT_SHORT      2  /* short type */
 672 #define VT_VOID       3  /* void type */
 673 #define VT_PTR        4  /* pointer */
 674 #define VT_ENUM       5  /* enum definition */
 675 #define VT_FUNC       6  /* function type */
 676 #define VT_STRUCT     7  /* struct/union definition */
 677 #define VT_FLOAT      8  /* IEEE float */
 678 #define VT_DOUBLE     9  /* IEEE double */
 679 #define VT_LDOUBLE   10  /* IEEE long double */
 680 #define VT_BOOL      11  /* ISOC99 boolean type */
 681 #define VT_LLONG     12  /* 64 bit integer */
 682 #define VT_LONG      13  /* long integer (NEVER USED as type, only
 683                             during parsing) */
 684 #define VT_BTYPE      0x000f /* mask for basic type */
 685 #define VT_UNSIGNED   0x0010  /* unsigned type */
 686 #define VT_ARRAY      0x0020  /* array type (also has VT_PTR) */
 687 #define VT_VLA        0x20000 /* VLA type (also has VT_PTR and VT_ARRAY) */
 688 #define VT_BITFIELD   0x0040  /* bitfield modifier */
 689 #define VT_CONSTANT   0x0800  /* const modifier */
 690 #define VT_VOLATILE   0x1000  /* volatile modifier */
 691 #define VT_SIGNED     0x2000  /* signed type */
 692
 693 /* storage */
 694 #define VT_EXTERN  0x00000080  /* extern definition */
 695 #define VT_STATIC  0x00000100  /* static variable */
 696 #define VT_TYPEDEF 0x00000200  /* typedef definition */
 697 #define VT_INLINE  0x00000400  /* inline definition */
 698 #define VT_IMPORT  0x00004000  /* win32: extern data imported from dll */
 699 #define VT_EXPORT  0x00008000  /* win32: data exported from dll */
 700 #define VT_WEAK    0x00010000  /* win32: data exported from dll */
 701
 702 #define VT_STRUCT_SHIFT 18   /* shift for bitfield shift values */
 703
 704 /* type mask (except storage) */
 705 #define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK)
 706 #define VT_TYPE    (~(VT_STORAGE))
 707
 708 /* token values */
 709
 710 /* warning: the following compare tokens depend on i386 asm code */
 711 #define TOK_ULT 0x92
 712 #define TOK_UGE 0x93
 713 #define TOK_EQ  0x94
 714 #define TOK_NE  0x95
 715 #define TOK_ULE 0x96
 716 #define TOK_UGT 0x97
 717 #define TOK_Nset 0x98
 718 #define TOK_Nclear 0x99
 719 #define TOK_LT  0x9c
 720 #define TOK_GE  0x9d
 721 #define TOK_LE  0x9e
 722 #define TOK_GT  0x9f
 723
 724 #define TOK_LAND  0xa0
 725 #define TOK_LOR   0xa1
 726
 727 #define TOK_DEC   0xa2
 728 #define TOK_MID   0xa3 /* inc/dec, to void constant */
 729 #define TOK_INC   0xa4
 730 #define TOK_UDIV  0xb0 /* unsigned division */
 731 #define TOK_UMOD  0xb1 /* unsigned modulo */
 732 #define TOK_PDIV  0xb2 /* fast division with undefined rounding for pointers */
 733 #define TOK_CINT   0xb3 /* number in tokc */
 734 #define TOK_CCHAR 0xb4 /* char constant in tokc */
 735 #define TOK_STR   0xb5 /* pointer to string in tokc */
 736 #define TOK_TWOSHARPS 0xb6 /* ## preprocessing token */
 737 #define TOK_LCHAR    0xb7
 738 #define TOK_LSTR     0xb8
 739 #define TOK_CFLOAT   0xb9 /* float constant */
 740 #define TOK_LINENUM  0xba /* line number info */
 741 #define TOK_CDOUBLE  0xc0 /* double constant */
 742 #define TOK_CLDOUBLE 0xc1 /* long double constant */
 743 #define TOK_UMULL    0xc2 /* unsigned 32x32 -> 64 mul */
 744 #define TOK_ADDC1    0xc3 /* add with carry generation */
 745 #define TOK_ADDC2    0xc4 /* add with carry use */
 746 #define TOK_SUBC1    0xc5 /* add with carry generation */
 747 #define TOK_SUBC2    0xc6 /* add with carry use */
 748 #define TOK_CUINT    0xc8 /* unsigned int constant */
 749 #define TOK_CLLONG   0xc9 /* long long constant */
 750 #define TOK_CULLONG  0xca /* unsigned long long constant */
 751 #define TOK_ARROW    0xcb
 752 #define TOK_DOTS     0xcc /* three dots */
 753 #define TOK_SHR      0xcd /* unsigned shift right */
 754 #define TOK_PPNUM    0xce /* preprocessor number */
 755 #define TOK_NOSUBST  0xcf /* means following token has already been pp'd */
 756
 757 #define TOK_SHL   0x01 /* shift left */
 758 #define TOK_SAR   0x02 /* signed shift right */
 759
 760 /* assignement operators : normal operator or 0x80 */
 761 #define TOK_A_MOD 0xa5
 762 #define TOK_A_AND 0xa6
 763 #define TOK_A_MUL 0xaa
 764 #define TOK_A_ADD 0xab
 765 #define TOK_A_SUB 0xad
 766 #define TOK_A_DIV 0xaf
 767 #define TOK_A_XOR 0xde
 768 #define TOK_A_OR  0xfc
 769 #define TOK_A_SHL 0x81
 770 #define TOK_A_SAR 0x82
 771
 772 #ifndef offsetof
 773 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 774 #endif
 775
 776 #ifndef countof
 777 #define countof(tab) (sizeof(tab) / sizeof((tab)[0]))
 778 #endif
 779
 780 #define TOK_EOF       (-1)  /* end of file */
 781 #define TOK_LINEFEED  10    /* line feed */
 782
 783 /* all identificators and strings have token above that */
 784 #define TOK_IDENT 256
 785
 786 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 787 #define TOK_ASM_int TOK_INT
 788 #define TOK_ASM_weak TOK_WEAK1
 789
 790 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 791 /* only used for i386 asm opcodes definitions */
 792 #define DEF_BWL(x) \
 793  DEF(TOK_ASM_ ## x ## b, #x "b") \
 794  DEF(TOK_ASM_ ## x ## w, #x "w") \
 795  DEF(TOK_ASM_ ## x ## l, #x "l") \
 796  DEF(TOK_ASM_ ## x, #x)
 797 #define DEF_WL(x) \
 798  DEF(TOK_ASM_ ## x ## w, #x "w") \
 799  DEF(TOK_ASM_ ## x ## l, #x "l") \
 800  DEF(TOK_ASM_ ## x, #x)
 801 #ifdef TCC_TARGET_X86_64
 802 # define DEF_BWLQ(x) \
 803  DEF(TOK_ASM_ ## x ## b, #x "b") \
 804  DEF(TOK_ASM_ ## x ## w, #x "w") \
 805  DEF(TOK_ASM_ ## x ## l, #x "l") \
 806  DEF(TOK_ASM_ ## x ## q, #x "q") \
 807  DEF(TOK_ASM_ ## x, #x)
 808 # define DEF_WLQ(x) \
 809  DEF(TOK_ASM_ ## x ## w, #x "w") \
 810  DEF(TOK_ASM_ ## x ## l, #x "l") \
 811  DEF(TOK_ASM_ ## x ## q, #x "q") \
 812  DEF(TOK_ASM_ ## x, #x)
 813 # define DEF_BWLX DEF_BWLQ
 814 # define DEF_WLX DEF_WLQ
 815 /* number of sizes + 1 */
 816 # define NBWLX 5
 817 #else
 818 # define DEF_BWLX DEF_BWL
 819 # define DEF_WLX DEF_WL
 820 /* number of sizes + 1 */
 821 # define NBWLX 4
 822 #endif
 823
 824 #define DEF_FP1(x) \
 825  DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \
 826  DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \
 827  DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \
 828  DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s")
 829
 830 #define DEF_FP(x) \
 831  DEF(TOK_ASM_ ## f ## x, "f" #x ) \
 832  DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \
 833  DEF_FP1(x)
 834
 835 #define DEF_ASMTEST(x) \
 836  DEF_ASM(x ## o) \
 837  DEF_ASM(x ## no) \
 838  DEF_ASM(x ## b) \
 839  DEF_ASM(x ## c) \
 840  DEF_ASM(x ## nae) \
 841  DEF_ASM(x ## nb) \
 842  DEF_ASM(x ## nc) \
 843  DEF_ASM(x ## ae) \
 844  DEF_ASM(x ## e) \
 845  DEF_ASM(x ## z) \
 846  DEF_ASM(x ## ne) \
 847  DEF_ASM(x ## nz) \
 848  DEF_ASM(x ## be) \
 849  DEF_ASM(x ## na) \
 850  DEF_ASM(x ## nbe) \
 851  DEF_ASM(x ## a) \
 852  DEF_ASM(x ## s) \
 853  DEF_ASM(x ## ns) \
 854  DEF_ASM(x ## p) \
 855  DEF_ASM(x ## pe) \
 856  DEF_ASM(x ## np) \
 857  DEF_ASM(x ## po) \
 858  DEF_ASM(x ## l) \
 859  DEF_ASM(x ## nge) \
 860  DEF_ASM(x ## nl) \
 861  DEF_ASM(x ## ge) \
 862  DEF_ASM(x ## le) \
 863  DEF_ASM(x ## ng) \
 864  DEF_ASM(x ## nle) \
 865  DEF_ASM(x ## g)
 866
 867 #endif // defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 868
 869 enum tcc_token {
 870     TOK_LAST = TOK_IDENT - 1,
 871 #define DEF(id, str) id,
 872 #include "tcctok.h"
 873 #undef DEF
 874 };
 875
 876 #define TOK_UIDENT TOK_DEFINE
 877
 878 #ifdef _WIN32
 879 #define snprintf _snprintf
 880 #define vsnprintf _vsnprintf
 881 #ifndef __GNUC__
 882   #define strtold (long double)strtod
 883   #define strtof (float)strtod
 884   #define strtoll (long long)strtol
 885   #define strtoull (unsigned long long)strtoui64
 886 #endif
 887 #else
 888 /* XXX: need to define this to use them in non ISOC99 context */
 889 extern float strtof (const char *__nptr, char **__endptr);
 890 extern long double strtold (const char *__nptr, char **__endptr);
 891 #endif
 892
 893 #ifdef _WIN32
 894 #define IS_DIRSEP(c) (c == '/' || c == '\\')
 895 #define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2])))
 896 #define PATHCMP stricmp
 897 #else
 898 #define IS_DIRSEP(c) (c == '/')
 899 #define IS_ABSPATH(p) IS_DIRSEP(p[0])
 900 #define PATHCMP strcmp
 901 #endif
 902
 903 #ifdef TCC_TARGET_PE
 904 #define PATHSEP ';'
 905 #else
 906 #define PATHSEP ':'
 907 #endif
 908
 909 /* space exlcuding newline */
 910 static inline int is_space(int ch)
 911 {
 912     return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r';
 913 }
 914
 915 static inline int isid(int c)
 916 {
 917     return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 918 }
 919
 920 static inline int isnum(int c)
 921 {
 922     return c >= '0' && c <= '9';
 923 }
 924
 925 static inline int isoct(int c)
 926 {
 927     return c >= '0' && c <= '7';
 928 }
 929
 930 static inline int toup(int c)
 931 {
 932     return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
 933 }
 934
 935 #ifndef PUB_FUNC
 936 # define PUB_FUNC
 937 #endif
 938
 939 #ifdef ONE_SOURCE
 940 #define ST_INLN static inline
 941 #define ST_FUNC static
 942 #define ST_DATA static
 943 #else
 944 #define ST_INLN
 945 #define ST_FUNC
 946 #define ST_DATA extern
 947 #endif
 948
 949 /* ------------ libtcc.c ------------ */
 950
 951 /* use GNU C extensions */
 952 ST_DATA int gnu_ext;
 953 /* use Tiny C extensions */
 954 ST_DATA int tcc_ext;
 955 /* XXX: get rid of this ASAP */
 956 ST_DATA struct TCCState *tcc_state;
 957
 958 #ifdef CONFIG_TCC_BACKTRACE
 959 ST_DATA int rt_num_callers;
 960 ST_DATA const char **rt_bound_error_msg;
 961 ST_DATA void *rt_prog_main;
 962 #endif
 963
 964 #define AFF_PRINT_ERROR     0x0001 /* print error if file not found */
 965 #define AFF_REFERENCED_DLL  0x0002 /* load a referenced dll from another dll */
 966 #define AFF_PREPROCESS      0x0004 /* preprocess file */
 967
 968 /* public functions currently used by the tcc main function */
 969 PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s);
 970 PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s);
 971 PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num);
 972 PUB_FUNC char *tcc_basename(const char *name);
 973 PUB_FUNC char *tcc_fileextension (const char *name);
 974 PUB_FUNC void tcc_free(void *ptr);
 975 PUB_FUNC void *tcc_malloc(unsigned long size);
 976 PUB_FUNC void *tcc_mallocz(unsigned long size);
 977 PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size);
 978 PUB_FUNC char *tcc_strdup(const char *str);
 979 #define free(p) use_tcc_free(p)
 980 #define malloc(s) use_tcc_malloc(s)
 981 #define realloc(p, s) use_tcc_realloc(p, s)
 982 #undef strdup
 983 #define strdup(s) use_tcc_strdup(s)
 984 PUB_FUNC void tcc_memstats(void);
 985 PUB_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
 986 PUB_FUNC void dynarray_reset(void *pp, int *n);
 987 PUB_FUNC void tcc_error_noabort(const char *fmt, ...);
 988 PUB_FUNC void tcc_error(const char *fmt, ...);
 989 PUB_FUNC void tcc_warning(const char *fmt, ...);
 990
 991 /* other utilities */
 992 ST_INLN void cstr_ccat(CString *cstr, int ch);
 993 ST_FUNC void cstr_cat(CString *cstr, const char *str);
 994 ST_FUNC void cstr_wccat(CString *cstr, int ch);
 995 ST_FUNC void cstr_new(CString *cstr);
 996 ST_FUNC void cstr_free(CString *cstr);
 997 ST_FUNC void add_char(CString *cstr, int c);
 998 #define cstr_reset(cstr) cstr_free(cstr)
 999
1000 ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
1001 ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
1002 ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
1003 ST_FUNC void section_reserve(Section *sec, unsigned long size);
1004 ST_FUNC Section *find_section(TCCState *s1, const char *name);
1005
1006 ST_FUNC void put_extern_sym2(Sym *sym, Section *section, uplong value, unsigned long size, int can_add_underscore);
1007 ST_FUNC void put_extern_sym(Sym *sym, Section *section, uplong value, unsigned long size);
1008 ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
1009
1010 ST_INLN void sym_free(Sym *sym);
1011 ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c);
1012 ST_FUNC Sym *sym_find2(Sym *s, int v);
1013 ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
1014 ST_FUNC void sym_pop(Sym **ptop, Sym *b);
1015 ST_INLN Sym *struct_find(int v);
1016 ST_INLN Sym *sym_find(int v);
1017 ST_FUNC Sym *global_identifier_push(int v, int t, int c);
1018
1019 ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
1020 ST_FUNC int tcc_open(TCCState *s1, const char *filename);
1021 ST_FUNC void tcc_close(void);
1022
1023 ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
1024 ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
1025 #ifndef TCC_TARGET_PE
1026 ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
1027 #endif
1028
1029 PUB_FUNC int tcc_set_flag(TCCState *s, const char *flag_name, int value);
1030 PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
1031 PUB_FUNC char *tcc_default_target(TCCState *s, const char *default_file);
1032 PUB_FUNC void tcc_gen_makedeps(TCCState *s, const char *target, const char *filename);
1033 #ifdef CONFIG_TCC_BACKTRACE
1034 PUB_FUNC void tcc_set_num_callers(int n);
1035 #endif
1036
1037 /* ------------ tccpp.c ------------ */
1038
1039 ST_DATA struct BufferedFile *file;
1040 ST_DATA int ch, tok;
1041 ST_DATA CValue tokc;
1042 ST_DATA const int *macro_ptr;
1043 ST_DATA int parse_flags;
1044 ST_DATA int tok_flags;
1045 ST_DATA CString tokcstr; /* current parsed string, if any */
1046
1047 /* display benchmark infos */
1048 ST_DATA int total_lines;
1049 ST_DATA int total_bytes;
1050 ST_DATA int tok_ident;
1051 ST_DATA TokenSym **table_ident;
1052
1053 #define TOK_FLAG_BOL   0x0001 /* beginning of line before */
1054 #define TOK_FLAG_BOF   0x0002 /* beginning of file before */
1055 #define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
1056 #define TOK_FLAG_EOF   0x0008 /* end of file */
1057
1058 #define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
1059 #define PARSE_FLAG_TOK_NUM    0x0002 /* return numbers instead of TOK_PPNUM */
1060 #define PARSE_FLAG_LINEFEED   0x0004 /* line feed is returned as a
1061                                         token. line feed is also
1062                                         returned at eof */
1063 #define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
1064 #define PARSE_FLAG_SPACES     0x0010 /* next() returns space tokens (for -E) */
1065
1066 ST_FUNC TokenSym *tok_alloc(const char *str, int len);
1067 ST_FUNC char *get_tok_str(int v, CValue *cv);
1068 ST_FUNC void save_parse_state(ParseState *s);
1069 ST_FUNC void restore_parse_state(ParseState *s);
1070 ST_INLN void tok_str_new(TokenString *s);
1071 ST_FUNC void tok_str_free(int *str);
1072 ST_FUNC void tok_str_add(TokenString *s, int t);
1073 ST_FUNC void tok_str_add_tok(TokenString *s);
1074 ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
1075 ST_FUNC void define_undef(Sym *s);
1076 ST_INLN Sym *define_find(int v);
1077 ST_FUNC void free_defines(Sym *b);
1078 ST_FUNC Sym *label_find(int v);
1079 ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
1080 ST_FUNC void label_pop(Sym **ptop, Sym *slast);
1081 ST_FUNC void parse_define(void);
1082 ST_FUNC void preprocess(int is_bof);
1083 ST_FUNC void next_nomacro(void);
1084 ST_FUNC void next(void);
1085 ST_INLN void unget_tok(int last_tok);
1086 ST_FUNC void preprocess_init(TCCState *s1);
1087 ST_FUNC void preprocess_new();
1088 ST_FUNC int tcc_preprocess(TCCState *s1);
1089 ST_FUNC void skip(int c);
1090 ST_FUNC void expect(const char *msg);
1091
1092 /* ------------ tccgen.c ------------ */
1093
1094 ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */
1095 ST_DATA Section *cur_text_section; /* current section where function code is generated */
1096 #ifdef CONFIG_TCC_ASM
1097 ST_DATA Section *last_text_section; /* to handle .previous asm directive */
1098 #endif
1099 #ifdef CONFIG_TCC_BCHECK
1100 /* bound check related sections */
1101 ST_DATA Section *bounds_section; /* contains global data bound description */
1102 ST_DATA Section *lbounds_section; /* contains local data bound description */
1103 #endif
1104 /* symbol sections */
1105 ST_DATA Section *symtab_section, *strtab_section;
1106 /* debug sections */
1107 ST_DATA Section *stab_section, *stabstr_section;
1108
1109 #define SYM_POOL_NB (8192 / sizeof(Sym))
1110 ST_DATA Sym *sym_free_first;
1111 ST_DATA void **sym_pools;
1112 ST_DATA int nb_sym_pools;
1113
1114 ST_DATA Sym *global_stack;
1115 ST_DATA Sym *local_stack;
1116 ST_DATA Sym *local_label_stack;
1117 ST_DATA Sym *global_label_stack;
1118 ST_DATA Sym *define_stack;
1119 ST_DATA CType char_pointer_type, func_old_type, int_type;
1120 ST_DATA SValue vstack[VSTACK_SIZE], *vtop;
1121 ST_DATA int rsym, anon_sym, ind, loc;
1122
1123 ST_DATA int const_wanted; /* true if constant wanted */
1124 ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
1125 ST_DATA int global_expr;  /* true if compound literals must be allocated globally (used during initializers parsing */
1126 ST_DATA CType func_vt; /* current function return type (used by return instruction) */
1127 ST_DATA int func_vc;
1128 ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
1129 ST_DATA char *funcname;
1130
1131 ST_INLN int is_float(int t);
1132 ST_FUNC int ieee_finite(double d);
1133 ST_FUNC void test_lvalue(void);
1134 ST_FUNC void swap(int *p, int *q);
1135 ST_FUNC void vpushi(int v);
1136 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
1137 ST_FUNC void vset(CType *type, int r, int v);
1138 ST_FUNC void vswap(void);
1139 ST_FUNC void vpush_global_sym(CType *type, int v);
1140 ST_FUNC void vrott(int n);
1141 #ifdef TCC_TARGET_ARM
1142 ST_FUNC int get_reg_ex(int rc, int rc2);
1143 ST_FUNC void lexpand_nr(void);
1144 #endif
1145 ST_FUNC void vpushv(SValue *v);
1146 ST_FUNC void save_reg(int r);
1147 ST_FUNC int get_reg(int rc);
1148 ST_FUNC void save_regs(int n);
1149 ST_FUNC int gv(int rc);
1150 ST_FUNC void gv2(int rc1, int rc2);
1151 ST_FUNC void vpop(void);
1152 ST_FUNC void gen_op(int op);
1153 ST_FUNC int type_size(CType *type, int *a);
1154 ST_FUNC void mk_pointer(CType *type);
1155 ST_FUNC void vstore(void);
1156 ST_FUNC void inc(int post, int c);
1157 ST_FUNC void parse_asm_str(CString *astr);
1158 ST_FUNC int lvalue_type(int t);
1159 ST_FUNC void indir(void);
1160 ST_FUNC void unary(void);
1161 ST_FUNC void expr_prod(void);
1162 ST_FUNC void expr_sum(void);
1163 ST_FUNC void gexpr(void);
1164 ST_FUNC int expr_const(void);
1165 ST_FUNC void gen_inline_functions(void);
1166 ST_FUNC void decl(int l);
1167 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
1168 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
1169 #endif
1170
1171 /* ------------ tccelf.c ------------ */
1172
1173 #define ARMAG  "!<arch>\012"    /* For COFF and a.out archives */
1174
1175 typedef struct {
1176     unsigned int n_strx;         /* index into string table of name */
1177     unsigned char n_type;         /* type of symbol */
1178     unsigned char n_other;        /* misc info (usually empty) */
1179     unsigned short n_desc;        /* description field */
1180     unsigned int n_value;        /* value of symbol */
1181 } Stab_Sym;
1182
1183 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);
1184
1185 ST_FUNC int put_elf_str(Section *s, const char *sym);
1186 ST_FUNC int put_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int shndx, const char *name);
1187 ST_FUNC int add_elf_sym(Section *s, uplong value, unsigned long size, int info, int other, int sh_num, const char *name);
1188 ST_FUNC int find_elf_sym(Section *s, const char *name);
1189 ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
1190
1191 ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
1192 ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
1193 ST_FUNC void put_stabn(int type, int other, int desc, int value);
1194 ST_FUNC void put_stabd(int type, int other, int desc);
1195
1196 ST_FUNC void relocate_common_syms(void);
1197 ST_FUNC void relocate_syms(TCCState *s1, int do_resolve);
1198 ST_FUNC void relocate_section(TCCState *s1, Section *s);
1199
1200 ST_FUNC void tcc_add_linker_symbols(TCCState *s1);
1201 ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset);
1202 ST_FUNC int tcc_load_archive(TCCState *s1, int fd);
1203 ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name);
1204 ST_FUNC void tcc_add_bcheck(TCCState *s1);
1205
1206 ST_FUNC void build_got_entries(TCCState *s1);
1207 ST_FUNC void tcc_add_runtime(TCCState *s1);
1208
1209 #ifndef TCC_TARGET_PE
1210 ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level);
1211 ST_FUNC int tcc_load_ldscript(TCCState *s1);
1212 ST_FUNC uint8_t *parse_comment(uint8_t *p);
1213 ST_FUNC void minp(void);
1214 ST_INLN void inp(void);
1215 ST_FUNC int handle_eob(void);
1216 #endif
1217
1218 #ifdef TCC_TARGET_X86_64
1219 # define ELFCLASSW ELFCLASS64
1220 # define ElfW(type) Elf##64##_##type
1221 # define ELFW(type) ELF##64##_##type
1222 # define ElfW_Rel ElfW(Rela)
1223 # define SHT_RELX SHT_RELA
1224 # define REL_SECTION_FMT ".rela%s"
1225 /* XXX: DLL with PLT would only work with x86-64 for now */
1226 # define TCC_OUTPUT_DLL_WITH_PLT
1227 #else
1228 # define ELFCLASSW ELFCLASS32
1229 # define ElfW(type) Elf##32##_##type
1230 # define ELFW(type) ELF##32##_##type
1231 # define ElfW_Rel ElfW(Rel)
1232 # define SHT_RELX SHT_REL
1233 # define REL_SECTION_FMT ".rel%s"
1234 #endif
1235
1236 /* ------------ xxx-gen.c ------------ */
1237
1238 ST_FUNC void gsym_addr(int t, int a);
1239 ST_FUNC void gsym(int t);
1240 ST_FUNC void load(int r, SValue *sv);
1241 ST_FUNC void store(int r, SValue *v);
1242 ST_FUNC void gfunc_call(int nb_args);
1243 ST_FUNC void gfunc_prolog(CType *func_type);
1244 ST_FUNC void gfunc_epilog(void);
1245 ST_FUNC int gjmp(int t);
1246 ST_FUNC void gjmp_addr(int a);
1247 ST_FUNC int gtst(int inv, int t);
1248 ST_FUNC void gen_opi(int op);
1249 ST_FUNC void gen_opf(int op);
1250 ST_FUNC void gen_cvt_ftoi(int t);
1251 ST_FUNC void gen_cvt_ftof(int t);
1252 ST_FUNC void ggoto(void);
1253 #ifndef TCC_TARGET_C67
1254 ST_FUNC void o(unsigned int c);
1255 #endif
1256 #ifndef TCC_TARGET_ARM
1257 ST_FUNC void gen_cvt_itof(int t);
1258 #endif
1259
1260 /* ------------ i386-gen.c ------------ */
1261 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1262 ST_FUNC void g(int c);
1263 ST_FUNC int oad(int c, int s);
1264 ST_FUNC void gen_le16(int c);
1265 ST_FUNC void gen_le32(int c);
1266 ST_FUNC void gen_addr32(int r, Sym *sym, int c);
1267 ST_FUNC void gen_addrpc32(int r, Sym *sym, int c);
1268 #endif
1269
1270 #ifdef CONFIG_TCC_BCHECK
1271 ST_FUNC void gen_bounded_ptr_add(void);
1272 ST_FUNC void gen_bounded_ptr_deref(void);
1273 #endif
1274
1275 /* ------------ x86_64-gen.c ------------ */
1276 #ifdef TCC_TARGET_X86_64
1277 ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c);
1278 #endif
1279
1280 /* ------------ arm-gen.c ------------ */
1281 #ifdef TCC_TARGET_ARM
1282 ST_FUNC uint32_t encbranch(int pos, int addr, int fail);
1283 ST_FUNC void gen_cvt_itof1(int t);
1284 #endif
1285
1286 /* ------------ c67-gen.c ------------ */
1287 #ifdef TCC_TARGET_C67
1288 #endif
1289
1290 /* ------------ tcccoff.c ------------ */
1291
1292 #ifdef TCC_TARGET_COFF
1293 ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f);
1294 ST_FUNC int tcc_load_coff(TCCState * s1, int fd);
1295 #endif
1296
1297 /* ------------ tccasm.c ------------ */
1298 ST_FUNC void asm_instr(void);
1299 ST_FUNC void asm_global_instr(void);
1300
1301 #ifdef CONFIG_TCC_ASM
1302 ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp);
1303 ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe);
1304 ST_FUNC int asm_int_expr(TCCState *s1);
1305 ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess);
1306 /* ------------ i386-asm.c ------------ */
1307 ST_FUNC void gen_expr32(ExprValue *pe);
1308 ST_FUNC void asm_opcode(TCCState *s1, int opcode);
1309 ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg);
1310 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier);
1311 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg);
1312 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str);
1313 #endif
1314 /* ------------ tccpe.c -------------- */
1315 #ifdef TCC_TARGET_PE
1316 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd);
1317 ST_FUNC int pe_output_file(TCCState * s1, const char *filename);
1318 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, const void *value);
1319 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2);
1320 /* tiny_impdef.c */
1321 ST_FUNC char *get_export_names(FILE *fp);
1322 #ifdef TCC_TARGET_X86_64
1323 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack);
1324 #endif
1325 #endif
1326
1327 /* ------------ tccrun.c ----------------- */
1328 #ifdef CONFIG_TCC_STATIC
1329 #define RTLD_LAZY       0x001
1330 #define RTLD_NOW        0x002
1331 #define RTLD_GLOBAL     0x100
1332 #define RTLD_DEFAULT    NULL
1333 /* dummy function for profiling */
1334 ST_FUNC void *dlopen(const char *filename, int flag);
1335 ST_FUNC void dlclose(void *p);
1336 //ST_FUNC const char *dlerror(void);
1337 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1338 #elif !defined TCC_TARGET_PE || !defined _WIN32
1339 ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
1340 #endif
1341 /********************************************************/
1342 /* include the target specific definitions */
1343
1344 #define TARGET_DEFS_ONLY
1345 #ifdef TCC_TARGET_I386
1346 #include "i386-gen.c"
1347 #endif
1348 #ifdef TCC_TARGET_X86_64
1349 #include "x86_64-gen.c"
1350 #endif
1351 #ifdef TCC_TARGET_ARM
1352 #include "arm-gen.c"
1353 #endif
1354 #ifdef TCC_TARGET_C67
1355 #include "coff.h"
1356 #include "c67-gen.c"
1357 #endif
1358 #undef TARGET_DEFS_ONLY
1359
1360 ST_DATA const int reg_classes[];
1361
1362 /********************************************************/
1363 #undef ST_DATA
1364 #ifdef ONE_SOURCE
1365 #define ST_DATA static
1366 #else
1367 #define ST_DATA
1368 #endif
1369 /********************************************************/
1370 #endif /* _TCC_H */