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