gas/as.h

   1 /* as.h - global header file
   2    Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   3    1999, 2000, 2001, 2002, 2003, 2004, 2005
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GAS, the GNU Assembler.
   7
   8    GAS is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2, or (at your option)
  11    any later version.
  12
  13    GAS is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GAS; see the file COPYING.  If not, write to the Free
  20    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21    02111-1307, USA.  */
  22
  23 #ifndef GAS
  24 #define GAS 1
  25 /* I think this stuff is largely out of date.  xoxorich.
  26
  27    CAPITALISED names are #defined.
  28    "lowercaseH" is #defined if "lowercase.h" has been #include-d.
  29    "lowercaseT" is a typedef of "lowercase" objects.
  30    "lowercaseP" is type "pointer to object of type 'lowercase'".
  31    "lowercaseS" is typedef struct ... lowercaseS.
  32
  33    #define DEBUG to enable all the "know" assertion tests.
  34    #define SUSPECT when debugging hash code.
  35    #define COMMON as "extern" for all modules except one, where you #define
  36         COMMON as "".
  37    If TEST is #defined, then we are testing a module: #define COMMON as "".  */
  38
  39 #include "config.h"
  40 #include "bin-bugs.h"
  41
  42 /* This is the code recommended in the autoconf documentation, almost
  43    verbatim.  If it doesn't work for you, let me know, and notify
  44    djm@gnu.ai.mit.edu as well.  */
  45 /* Added void* version for STDC case.  This is to be compatible with
  46    the declaration in bison.simple, used for m68k operand parsing.
  47    --KR 1995.08.08 */
  48 /* Force void* decl for hpux.  This is what Bison uses.  --KR 1995.08.16 */
  49
  50 #ifndef __GNUC__
  51 # if HAVE_ALLOCA_H
  52 #  include <alloca.h>
  53 # else
  54 #  ifdef _AIX
  55 /* Indented so that pre-ansi C compilers will ignore it, rather than
  56    choke on it.  Some versions of AIX require this to be the first
  57    thing in the file.  */
  58  #pragma alloca
  59 #  else
  60 #   ifndef alloca /* predefined by HP cc +Olibcalls */
  61 #    if !defined (__STDC__) && !defined (__hpux)
  62 extern char *alloca ();
  63 #    else
  64 extern void *alloca ();
  65 #    endif /* __STDC__, __hpux */
  66 #   endif /* alloca */
  67 #  endif /* _AIX */
  68 # endif /* HAVE_ALLOCA_H */
  69 #endif /* __GNUC__ */
  70
  71 /* Now, tend to the rest of the configuration.  */
  72
  73 /* System include files first...  */
  74 #include <stdio.h>
  75 #ifdef HAVE_STRING_H
  76 #include <string.h>
  77 #else
  78 #ifdef HAVE_STRINGS_H
  79 #include <strings.h>
  80 #endif
  81 #endif
  82 #ifdef HAVE_STDLIB_H
  83 #include <stdlib.h>
  84 #endif
  85 #ifdef HAVE_UNISTD_H
  86 #include <unistd.h>
  87 #endif
  88 #ifdef HAVE_SYS_TYPES_H
  89 /* for size_t, pid_t */
  90 #include <sys/types.h>
  91 #endif
  92
  93 #include "getopt.h"
  94 /* The first getopt value for machine-independent long options.
  95    150 isn't special; it's just an arbitrary non-ASCII char value.  */
  96 #define OPTION_STD_BASE 150
  97 /* The first getopt value for machine-dependent long options.
  98    190 gives the standard options room to grow.  */
  99 #define OPTION_MD_BASE 190
 100
 101 #ifdef DEBUG
 102 #undef NDEBUG
 103 #endif
 104 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
 105 #define __PRETTY_FUNCTION__  ((char*)0)
 106 #endif
 107 #define assert(P) \
 108   ((void) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0)))
 109 #undef abort
 110 #define abort()         as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
 111
 112 /* Now GNU header files...  */
 113 #include "ansidecl.h"
 114 #ifdef BFD_ASSEMBLER
 115 #include "bfd.h"
 116 #endif
 117 #include "libiberty.h"
 118
 119 /* Define the standard progress macros.  */
 120 #include "progress.h"
 121
 122 /* This doesn't get taken care of anywhere.  */
 123 #ifndef __MWERKS__  /* Metrowerks C chokes on the "defined (inline)"  */
 124 #if !defined (__GNUC__) && !defined (inline)
 125 #define inline
 126 #endif
 127 #endif /* !__MWERKS__ */
 128
 129 /* Other stuff from config.h.  */
 130 #ifdef NEED_DECLARATION_STRSTR
 131 extern char *strstr ();
 132 #endif
 133 #ifdef NEED_DECLARATION_MALLOC
 134 extern PTR malloc ();
 135 extern PTR realloc ();
 136 #endif
 137 #ifdef NEED_DECLARATION_FREE
 138 extern void free ();
 139 #endif
 140 #ifdef NEED_DECLARATION_ERRNO
 141 extern int errno;
 142 #endif
 143 #ifdef NEED_DECLARATION_ENVIRON
 144 extern char **environ;
 145 #endif
 146
 147 /* This is needed for VMS.  */
 148 #if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
 149 #define unlink remove
 150 #endif
 151
 152 /* Hack to make "gcc -Wall" not complain about obstack macros.  */
 153 #if !defined (memcpy) && !defined (bcopy)
 154 #define bcopy(src,dest,size)    memcpy (dest, src, size)
 155 #endif
 156
 157 /* Make Saber happier on obstack.h.  */
 158 #ifdef SABER
 159 #undef  __PTR_TO_INT
 160 #define __PTR_TO_INT(P) ((int) (P))
 161 #undef  __INT_TO_PTR
 162 #define __INT_TO_PTR(P) ((char *) (P))
 163 #endif
 164
 165 #ifndef __LINE__
 166 #define __LINE__ "unknown"
 167 #endif /* __LINE__ */
 168
 169 #ifndef __FILE__
 170 #define __FILE__ "unknown"
 171 #endif /* __FILE__ */
 172
 173 #ifndef FOPEN_WB
 174 #if defined GO32 || defined __MINGW32__
 175 #include "fopen-bin.h"
 176 #else
 177 #include "fopen-same.h"
 178 #endif
 179 #endif
 180
 181 #ifndef EXIT_SUCCESS
 182 #define EXIT_SUCCESS 0
 183 #define EXIT_FAILURE 1
 184 #endif
 185
 186 #ifndef SEEK_SET
 187 #define SEEK_SET 0
 188 #endif
 189
 190 #define obstack_chunk_alloc xmalloc
 191 #define obstack_chunk_free xfree
 192
 193 #define xfree free
 194
 195 #include "asintl.h"
 196
 197 #define BAD_CASE(val)                                                       \
 198   {                                                                         \
 199     as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"),   \
 200               (long) val, __LINE__, __FILE__);                              \
 201   }
 202 \f
 203 #include "flonum.h"
 204
 205 /* These are assembler-wide concepts */
 206
 207 #ifdef BFD_ASSEMBLER
 208 extern bfd *stdoutput;
 209 typedef bfd_vma addressT;
 210 typedef bfd_signed_vma offsetT;
 211 #else
 212 typedef unsigned long addressT;
 213 typedef long offsetT;
 214 #endif
 215
 216 /* Type of symbol value, etc.  For use in prototypes.  */
 217 typedef addressT valueT;
 218
 219 #ifndef COMMON
 220 #ifdef TEST
 221 #define COMMON                  /* Declare our COMMONs storage here.  */
 222 #else
 223 #define COMMON extern           /* Our commons live elsewhere.  */
 224 #endif
 225 #endif
 226 /* COMMON now defined */
 227
 228 #ifdef DEBUG
 229 #ifndef know
 230 #define know(p) assert(p)       /* Verify our assumptions!  */
 231 #endif /* not yet defined */
 232 #else
 233 #define know(p)                 /* know() checks are no-op.ed  */
 234 #endif
 235 \f
 236 /* input_scrub.c */
 237
 238 /* Supplies sanitised buffers to read.c.
 239    Also understands printing line-number part of error messages.  */
 240 \f
 241 /* subsegs.c     Sub-segments. Also, segment(=expression type)s.*/
 242
 243 #ifndef BFD_ASSEMBLER
 244
 245 #ifdef MANY_SEGMENTS
 246 #include "bfd.h"
 247 #define N_SEGMENTS 40
 248 #define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
 249 #define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9,\
 250                  SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
 251                  SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
 252                  SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
 253 #define SEG_TEXT SEG_E0
 254 #define SEG_DATA SEG_E1
 255 #define SEG_BSS SEG_E2
 256 #define SEG_LAST SEG_E39
 257 #else
 258 #define N_SEGMENTS 3
 259 #define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
 260 #define SEG_LIST SEG_TEXT,SEG_DATA,SEG_BSS
 261 #endif
 262
 263 typedef enum _segT
 264 {
 265   SEG_ABSOLUTE = 0,
 266   SEG_LIST,
 267   SEG_UNKNOWN,
 268   SEG_GOOF,                     /* Only happens if AS has a logic error.  */
 269   /* Invented so we don't crash printing
 270      error message involving weird segment.  */
 271   SEG_EXPR,                     /* Intermediate expression values.  */
 272   SEG_DEBUG,                    /* Debug segment */
 273   SEG_NTV,                      /* Transfert vector preload segment.  */
 274   SEG_PTV,                      /* Transfert vector postload segment.  */
 275   SEG_REGISTER                  /* Mythical: a register-valued expression.  */
 276 } segT;
 277
 278 #define SEG_MAXIMUM_ORDINAL (SEG_REGISTER)
 279 #else
 280 typedef asection *segT;
 281 #define SEG_NORMAL(SEG)         (   (SEG) != absolute_section   \
 282                                  && (SEG) != undefined_section  \
 283                                  && (SEG) != reg_section        \
 284                                  && (SEG) != expr_section)
 285 #endif
 286 typedef int subsegT;
 287
 288 /* What subseg we are accessing now?  */
 289 COMMON subsegT now_subseg;
 290
 291 /* Segment our instructions emit to.  */
 292 COMMON segT now_seg;
 293
 294 #ifdef BFD_ASSEMBLER
 295 #define segment_name(SEG)       bfd_get_section_name (stdoutput, SEG)
 296 #else
 297 extern char const *const seg_name[];
 298 #define segment_name(SEG)       seg_name[(int) (SEG)]
 299 #endif
 300
 301 #ifndef BFD_ASSEMBLER
 302 extern int section_alignment[];
 303 #endif
 304
 305 #ifdef BFD_ASSEMBLER
 306 extern segT reg_section, expr_section;
 307 /* Shouldn't these be eliminated someday?  */
 308 extern segT text_section, data_section, bss_section;
 309 #define absolute_section        bfd_abs_section_ptr
 310 #define undefined_section       bfd_und_section_ptr
 311 #else
 312 #define reg_section             SEG_REGISTER
 313 #define expr_section            SEG_EXPR
 314 #define text_section            SEG_TEXT
 315 #define data_section            SEG_DATA
 316 #define bss_section             SEG_BSS
 317 #define absolute_section        SEG_ABSOLUTE
 318 #define undefined_section       SEG_UNKNOWN
 319 #endif
 320
 321
 322 enum _relax_state
 323 {
 324   /* Variable chars to be repeated fr_offset times.
 325      Fr_symbol unused. Used with fr_offset == 0 for a
 326      constant length frag.  */
 327   rs_fill = 1,
 328
 329   /* Align.  The fr_offset field holds the power of 2 to which to
 330      align.  The fr_var field holds the number of characters in the
 331      fill pattern.  The fr_subtype field holds the maximum number of
 332      bytes to skip when aligning, or 0 if there is no maximum.  */
 333   rs_align,
 334
 335   /* Align code.  The fr_offset field holds the power of 2 to which
 336      to align.  This type is only generated by machine specific
 337      code, which is normally responsible for handling the fill
 338      pattern.  The fr_subtype field holds the maximum number of
 339      bytes to skip when aligning, or 0 if there is no maximum.  */
 340   rs_align_code,
 341
 342   /* Test for alignment.  Like rs_align, but used by several targets
 343      to warn if data is not properly aligned.  */
 344   rs_align_test,
 345
 346   /* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
 347      character.  */
 348   rs_org,
 349
 350 #ifndef WORKING_DOT_WORD
 351   /* JF: gunpoint */
 352   rs_broken_word,
 353 #endif
 354
 355   /* Machine specific relaxable (or similarly alterable) instruction.  */
 356   rs_machine_dependent,
 357
 358   /* .space directive with expression operand that needs to be computed
 359      later.  Similar to rs_org, but different.
 360      fr_symbol: operand
 361      1 variable char: fill character  */
 362   rs_space,
 363
 364   /* A DWARF leb128 value; only ELF uses this.  The subtype is 0 for
 365      unsigned, 1 for signed.  */
 366   rs_leb128,
 367
 368   /* Exception frame information which we may be able to optimize.  */
 369   rs_cfa,
 370
 371   /* Cross-fragment dwarf2 line number optimization.  */
 372   rs_dwarf2dbg
 373 };
 374
 375 typedef enum _relax_state relax_stateT;
 376
 377 /* This type is used in prototypes, so it can't be a type that will be
 378    widened for argument passing.  */
 379 typedef unsigned int relax_substateT;
 380
 381 /* Enough bits for address, but still an integer type.
 382    Could be a problem, cross-assembling for 64-bit machines.  */
 383 typedef addressT relax_addressT;
 384
 385 struct relax_type
 386 {
 387   /* Forward reach. Signed number. > 0.  */
 388   offsetT rlx_forward;
 389   /* Backward reach. Signed number. < 0.  */
 390   offsetT rlx_backward;
 391
 392   /* Bytes length of this address.  */
 393   unsigned char rlx_length;
 394
 395   /* Next longer relax-state.  0 means there is no 'next' relax-state.  */
 396   relax_substateT rlx_more;
 397 };
 398
 399 typedef struct relax_type relax_typeS;
 400 \f
 401 /* main program "as.c" (command arguments etc).  */
 402
 403 COMMON unsigned char flag_no_comments; /* -f */
 404 COMMON unsigned char flag_debug; /* -D */
 405 COMMON unsigned char flag_signed_overflow_ok; /* -J */
 406 #ifndef WORKING_DOT_WORD
 407 COMMON unsigned char flag_warn_displacement; /* -K */
 408 #endif
 409
 410 /* True if local symbols should be retained.  */
 411 COMMON int flag_keep_locals; /* -L */
 412
 413 /* True if we are assembling in MRI mode.  */
 414 COMMON int flag_mri;
 415
 416 /* Should the data section be made read-only and appended to the text
 417    section?  */
 418 COMMON unsigned char flag_readonly_data_in_text; /* -R */
 419
 420 /* True if warnings should be inhibited.  */
 421 COMMON int flag_no_warnings; /* -W */
 422
 423 /* True if warnings count as errors.  */
 424 COMMON int flag_fatal_warnings; /* --fatal-warnings */
 425
 426 /* True if we should attempt to generate output even if non-fatal errors
 427    are detected.  */
 428 COMMON unsigned char flag_always_generate_output; /* -Z */
 429
 430 /* This is true if the assembler should output time and space usage.  */
 431 COMMON unsigned char flag_print_statistics;
 432
 433 /* True if local absolute symbols are to be stripped.  */
 434 COMMON int flag_strip_local_absolute;
 435
 436 /* True if we should generate a traditional format object file.  */
 437 COMMON int flag_traditional_format;
 438
 439 /* TRUE if .note.GNU-stack section with SEC_CODE should be created */
 440 COMMON int flag_execstack;
 441
 442 /* TRUE if .note.GNU-stack section with SEC_CODE should be created */
 443 COMMON int flag_noexecstack;
 444
 445 /* name of emitted object file */
 446 COMMON char *out_file_name;
 447
 448 /* name of file defining extensions to the basic instruction set */
 449 COMMON char *insttbl_file_name;
 450
 451 /* TRUE if we need a second pass.  */
 452 COMMON int need_pass_2;
 453
 454 /* TRUE if we should do no relaxing, and
 455    leave lots of padding.  */
 456 COMMON int linkrelax;
 457
 458 /* TRUE if we should produce a listing.  */
 459 extern int listing;
 460
 461 /* Type of debugging information we should generate.  We currently support
 462    stabs, ECOFF, and DWARF2.
 463
 464    NOTE!  This means debug information about the assembly source code itself
 465    and _not_ about possible debug information from a high-level language.
 466    This is especially relevant to DWARF2, since the compiler may emit line
 467    number directives that the assembler resolves.  */
 468
 469 enum debug_info_type
 470 {
 471   DEBUG_UNSPECIFIED,
 472   DEBUG_NONE,
 473   DEBUG_STABS,
 474   DEBUG_ECOFF,
 475   DEBUG_DWARF,
 476   DEBUG_DWARF2
 477 };
 478
 479 extern enum debug_info_type debug_type;
 480 extern int use_gnu_debug_info_extensions;
 481 \f
 482 /* Maximum level of macro nesting.  */
 483 extern int max_macro_nest;
 484
 485 /* Verbosity level.  */
 486 extern int verbose;
 487
 488 /* Obstack chunk size.  Keep large for efficient space use, make small to
 489    increase malloc calls for monitoring memory allocation.  */
 490 extern int chunksize;
 491
 492 struct _pseudo_type
 493 {
 494   /* assembler mnemonic, lower case, no '.' */
 495   const char *poc_name;
 496   /* Do the work */
 497   void (*poc_handler) (int);
 498   /* Value to pass to handler */
 499   int poc_val;
 500 };
 501
 502 typedef struct _pseudo_type pseudo_typeS;
 503
 504 /* Prefer varargs for non-ANSI compiler, since some will barf if the
 505    ellipsis definition is used with a no-arguments declaration.  */
 506 #if defined (HAVE_VARARGS_H) && !defined (__STDC__)
 507 #undef HAVE_STDARG_H
 508 #endif
 509
 510 #if defined (HAVE_STDARG_H)
 511 #define USE_STDARG
 512 #endif
 513 #if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
 514 #define USE_VARARGS
 515 #endif
 516
 517 #ifdef USE_STDARG
 518 #if (__GNUC__ >= 2) && !defined(VMS)
 519 /* for use with -Wformat */
 520
 521 #if __GNUC__ == 2 && __GNUC_MINOR__ < 6
 522 /* Support for double underscores in attribute names was added in gcc
 523    2.6, so avoid them if we are using an earlier version.  */
 524 #define __printf__ printf
 525 #define __format__ format
 526 #endif
 527
 528 #define PRINTF_LIKE(FCN) \
 529   void FCN (const char *format, ...) \
 530     __attribute__ ((__format__ (__printf__, 1, 2)))
 531 #define PRINTF_WHERE_LIKE(FCN) \
 532   void FCN (char *file, unsigned int line, const char *format, ...) \
 533     __attribute__ ((__format__ (__printf__, 3, 4)))
 534
 535 #else /* __GNUC__ < 2 || defined(VMS) */
 536
 537 #define PRINTF_LIKE(FCN)        void FCN (const char *format, ...)
 538 #define PRINTF_WHERE_LIKE(FCN)  void FCN (char *file, \
 539                                           unsigned int line, \
 540                                           const char *format, ...)
 541
 542 #endif /* __GNUC__ < 2 || defined(VMS) */
 543
 544 #else /* ! USE_STDARG */
 545
 546 #define PRINTF_LIKE(FCN)        void FCN ()
 547 #define PRINTF_WHERE_LIKE(FCN)  void FCN ()
 548
 549 #endif /* ! USE_STDARG */
 550
 551 PRINTF_LIKE (as_bad);
 552 PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
 553 PRINTF_LIKE (as_tsktsk);
 554 PRINTF_LIKE (as_warn);
 555 PRINTF_WHERE_LIKE (as_bad_where);
 556 PRINTF_WHERE_LIKE (as_warn_where);
 557
 558 void   as_assert (const char *, int, const char *);
 559 void   as_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 560 void   fprint_value (FILE *, addressT);
 561 void   sprint_value (char *, addressT);
 562 int    had_errors (void);
 563 int    had_warnings (void);
 564 void   as_warn_value_out_of_range (char *, offsetT, offsetT, offsetT, char *, unsigned);
 565 void   as_bad_value_out_of_range (char *, offsetT, offsetT, offsetT, char *, unsigned);
 566 void   print_version_id (void);
 567 char * app_push (void);
 568 char * atof_ieee (char *, int, LITTLENUM_TYPE *);
 569 char * input_scrub_include_file (char *, char *);
 570 void   input_scrub_insert_line (const char *);
 571 void   input_scrub_insert_file (char *);
 572 char * input_scrub_new_file (char *);
 573 char * input_scrub_next_buffer (char **bufp);
 574 int    do_scrub_chars (int (*get) (char *, int), char *, int);
 575 int    gen_to_words (LITTLENUM_TYPE *, int, long);
 576 int    had_err (void);
 577 int    ignore_input (void);
 578 void   cond_finish_check (int);
 579 void   cond_exit_macro (int);
 580 int    seen_at_least_1_file (void);
 581 void   app_pop (char *);
 582 void   as_howmuch (FILE *);
 583 void   as_perror (const char *, const char *);
 584 void   as_where (char **, unsigned int *);
 585 void   bump_line_counters (void);
 586 void   do_scrub_begin (int);
 587 void   input_scrub_begin (void);
 588 void   input_scrub_close (void);
 589 void   input_scrub_end (void);
 590 int    new_logical_line (char *, int);
 591 void   subsegs_begin (void);
 592 void   subseg_change (segT, int);
 593 segT   subseg_new (const char *, subsegT);
 594 segT   subseg_force_new (const char *, subsegT);
 595 void   subseg_set (segT, subsegT);
 596 int    subseg_text_p (segT);
 597 int    seg_not_empty_p (segT);
 598 void   start_dependencies (char *);
 599 void   register_dependency (char *);
 600 void   print_dependencies (void);
 601 #ifdef BFD_ASSEMBLER
 602 segT   subseg_get (const char *, int);
 603 #endif
 604
 605 struct expressionS;
 606 struct fix;
 607 typedef struct symbol symbolS;
 608 struct relax_type;
 609 typedef struct frag fragS;
 610
 611 #ifdef BFD_ASSEMBLER
 612 /* literal.c */
 613 valueT add_to_literal_pool (symbolS *, valueT, segT, int);
 614 #endif
 615
 616 int check_eh_frame (struct expressionS *, unsigned int *);
 617 int eh_frame_estimate_size_before_relax (fragS *);
 618 int eh_frame_relax_frag (fragS *);
 619 void eh_frame_convert_frag (fragS *);
 620 int generic_force_reloc (struct fix *);
 621
 622 #include "expr.h"               /* Before targ-*.h */
 623
 624 /* This one starts the chain of target dependant headers.  */
 625 #include "targ-env.h"
 626
 627 #ifdef OBJ_MAYBE_ELF
 628 #define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
 629 #else
 630 #ifdef OBJ_ELF
 631 #define IS_ELF 1
 632 #else
 633 #define IS_ELF 0
 634 #endif
 635 #endif
 636
 637 #include "write.h"
 638 #include "frags.h"
 639 #include "hash.h"
 640 #include "read.h"
 641 #include "symbols.h"
 642
 643 #include "tc.h"
 644 #include "obj.h"
 645
 646 #ifdef USE_EMULATIONS
 647 #include "emul.h"
 648 #endif
 649 #include "listing.h"
 650
 651 #ifdef TC_M68K
 652 /* True if we are assembling in m68k MRI mode.  */
 653 COMMON int flag_m68k_mri;
 654 #else
 655 #define flag_m68k_mri 0
 656 #endif
 657
 658 #ifdef WARN_COMMENTS
 659 COMMON int           warn_comment;
 660 COMMON unsigned int  found_comment;
 661 COMMON char *        found_comment_file;
 662 #endif
 663
 664 #ifndef NUMBERS_WITH_SUFFIX
 665 #define NUMBERS_WITH_SUFFIX 0
 666 #endif
 667
 668 #ifndef LOCAL_LABELS_DOLLAR
 669 #define LOCAL_LABELS_DOLLAR 0
 670 #endif
 671
 672 #ifndef LOCAL_LABELS_FB
 673 #define LOCAL_LABELS_FB 0
 674 #endif
 675
 676 #ifndef LABELS_WITHOUT_COLONS
 677 #define LABELS_WITHOUT_COLONS 0
 678 #endif
 679
 680 #ifndef NO_PSEUDO_DOT
 681 #define NO_PSEUDO_DOT 0
 682 #endif
 683
 684 #ifndef TEXT_SECTION_NAME
 685 #define TEXT_SECTION_NAME       ".text"
 686 #define DATA_SECTION_NAME       ".data"
 687 #define BSS_SECTION_NAME        ".bss"
 688 #endif
 689
 690 #ifndef OCTETS_PER_BYTE_POWER
 691 #define OCTETS_PER_BYTE_POWER 0
 692 #endif
 693 #ifndef OCTETS_PER_BYTE
 694 #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
 695 #endif
 696 #if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
 697  #error "Octets per byte conflicts with its power-of-two definition!"
 698 #endif
 699
 700 #endif /* GAS */