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  25 /* I think this stuff is largely out of date.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_ENVIRON
 131 extern char **environ;
 132 #endif
 133 #ifdef NEED_DECLARATION_ERRNO
 134 extern int errno;
 135 #endif
 136 #ifdef NEED_DECLARATION_FFS
 137 extern int ffs (int);
 138 #endif
 139 #ifdef NEED_DECLARATION_FREE
 140 extern void free ();
 141 #endif
 142 #ifdef NEED_DECLARATION_MALLOC
 143 extern PTR malloc ();
 144 extern PTR realloc ();
 145 #endif
 146 #ifdef NEED_DECLARATION_STRSTR
 147 extern char *strstr ();
 148 #endif
 149
 150 /* This is needed for VMS.  */
 151 #if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
 152 #define unlink remove
 153 #endif
 154
 155 /* Hack to make "gcc -Wall" not complain about obstack macros.  */
 156 #if !defined (memcpy) && !defined (bcopy)
 157 #define bcopy(src,dest,size)    memcpy (dest, src, size)
 158 #endif
 159
 160 /* Make Saber happier on obstack.h.  */
 161 #ifdef SABER
 162 #undef  __PTR_TO_INT
 163 #define __PTR_TO_INT(P) ((int) (P))
 164 #undef  __INT_TO_PTR
 165 #define __INT_TO_PTR(P) ((char *) (P))
 166 #endif
 167
 168 #ifndef __LINE__
 169 #define __LINE__ "unknown"
 170 #endif /* __LINE__ */
 171
 172 #ifndef __FILE__
 173 #define __FILE__ "unknown"
 174 #endif /* __FILE__ */
 175
 176 #ifndef FOPEN_WB
 177 #if defined GO32 || defined __MINGW32__
 178 #include "fopen-bin.h"
 179 #else
 180 #include "fopen-same.h"
 181 #endif
 182 #endif
 183
 184 #ifndef EXIT_SUCCESS
 185 #define EXIT_SUCCESS 0
 186 #define EXIT_FAILURE 1
 187 #endif
 188
 189 #ifndef SEEK_SET
 190 #define SEEK_SET 0
 191 #endif
 192
 193 #define obstack_chunk_alloc xmalloc
 194 #define obstack_chunk_free xfree
 195
 196 #define xfree free
 197
 198 #include "asintl.h"
 199
 200 #define BAD_CASE(val)                                                       \
 201   {                                                                         \
 202     as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"),   \
 203               (long) val, __LINE__, __FILE__);                              \
 204   }
 205 \f
 206 #include "flonum.h"
 207
 208 /* These are assembler-wide concepts */
 209
 210 #ifdef BFD_ASSEMBLER
 211 extern bfd *stdoutput;
 212 typedef bfd_vma addressT;
 213 typedef bfd_signed_vma offsetT;
 214 #else
 215 typedef unsigned long addressT;
 216 typedef long offsetT;
 217 #endif
 218
 219 /* Type of symbol value, etc.  For use in prototypes.  */
 220 typedef addressT valueT;
 221
 222 #ifndef COMMON
 223 #ifdef TEST
 224 #define COMMON                  /* Declare our COMMONs storage here.  */
 225 #else
 226 #define COMMON extern           /* Our commons live elsewhere.  */
 227 #endif
 228 #endif
 229 /* COMMON now defined */
 230
 231 #ifdef DEBUG
 232 #ifndef know
 233 #define know(p) assert(p)       /* Verify our assumptions!  */
 234 #endif /* not yet defined */
 235 #else
 236 #define know(p)                 /* know() checks are no-op.ed  */
 237 #endif
 238 \f
 239 /* input_scrub.c */
 240
 241 /* Supplies sanitised buffers to read.c.
 242    Also understands printing line-number part of error messages.  */
 243 \f
 244 /* subsegs.c     Sub-segments. Also, segment(=expression type)s.*/
 245
 246 #ifndef BFD_ASSEMBLER
 247
 248 #ifdef MANY_SEGMENTS
 249 #include "bfd.h"
 250 #define N_SEGMENTS 40
 251 #define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
 252 #define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9,\
 253                  SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
 254                  SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
 255                  SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
 256 #define SEG_TEXT SEG_E0
 257 #define SEG_DATA SEG_E1
 258 #define SEG_BSS SEG_E2
 259 #define SEG_LAST SEG_E39
 260 #else
 261 #define N_SEGMENTS 3
 262 #define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
 263 #define SEG_LIST SEG_TEXT,SEG_DATA,SEG_BSS
 264 #endif
 265
 266 typedef enum _segT
 267 {
 268   SEG_ABSOLUTE = 0,
 269   SEG_LIST,
 270   SEG_UNKNOWN,
 271   SEG_GOOF,                     /* Only happens if AS has a logic error.  */
 272   /* Invented so we don't crash printing
 273      error message involving weird segment.  */
 274   SEG_EXPR,                     /* Intermediate expression values.  */
 275   SEG_DEBUG,                    /* Debug segment */
 276   SEG_NTV,                      /* Transfert vector preload segment.  */
 277   SEG_PTV,                      /* Transfert vector postload segment.  */
 278   SEG_REGISTER                  /* Mythical: a register-valued expression.  */
 279 } segT;
 280
 281 #define SEG_MAXIMUM_ORDINAL (SEG_REGISTER)
 282 #else
 283 typedef asection *segT;
 284 #define SEG_NORMAL(SEG)         (   (SEG) != absolute_section   \
 285                                  && (SEG) != undefined_section  \
 286                                  && (SEG) != reg_section        \
 287                                  && (SEG) != expr_section)
 288 #endif
 289 typedef int subsegT;
 290
 291 /* What subseg we are accessing now?  */
 292 COMMON subsegT now_subseg;
 293
 294 /* Segment our instructions emit to.  */
 295 COMMON segT now_seg;
 296
 297 #ifdef BFD_ASSEMBLER
 298 #define segment_name(SEG)       bfd_get_section_name (stdoutput, SEG)
 299 #else
 300 extern char const *const seg_name[];
 301 #define segment_name(SEG)       seg_name[(int) (SEG)]
 302 #endif
 303
 304 #ifndef BFD_ASSEMBLER
 305 extern int section_alignment[];
 306 #endif
 307
 308 #ifdef BFD_ASSEMBLER
 309 extern segT reg_section, expr_section;
 310 /* Shouldn't these be eliminated someday?  */
 311 extern segT text_section, data_section, bss_section;
 312 #define absolute_section        bfd_abs_section_ptr
 313 #define undefined_section       bfd_und_section_ptr
 314 #else
 315 #define reg_section             SEG_REGISTER
 316 #define expr_section            SEG_EXPR
 317 #define text_section            SEG_TEXT
 318 #define data_section            SEG_DATA
 319 #define bss_section             SEG_BSS
 320 #define absolute_section        SEG_ABSOLUTE
 321 #define undefined_section       SEG_UNKNOWN
 322 #endif
 323
 324
 325 enum _relax_state
 326 {
 327   /* Dummy frag used by listing code.  */
 328   rs_dummy = 0,
 329
 330   /* Variable chars to be repeated fr_offset times.
 331      Fr_symbol unused. Used with fr_offset == 0 for a
 332      constant length frag.  */
 333   rs_fill,
 334
 335   /* Align.  The fr_offset field holds the power of 2 to which to
 336      align.  The fr_var field holds the number of characters in the
 337      fill pattern.  The fr_subtype field holds the maximum number of
 338      bytes to skip when aligning, or 0 if there is no maximum.  */
 339   rs_align,
 340
 341   /* Align code.  The fr_offset field holds the power of 2 to which
 342      to align.  This type is only generated by machine specific
 343      code, which is normally responsible for handling the fill
 344      pattern.  The fr_subtype field holds the maximum number of
 345      bytes to skip when aligning, or 0 if there is no maximum.  */
 346   rs_align_code,
 347
 348   /* Test for alignment.  Like rs_align, but used by several targets
 349      to warn if data is not properly aligned.  */
 350   rs_align_test,
 351
 352   /* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
 353      character.  */
 354   rs_org,
 355
 356 #ifndef WORKING_DOT_WORD
 357   /* JF: gunpoint */
 358   rs_broken_word,
 359 #endif
 360
 361   /* Machine specific relaxable (or similarly alterable) instruction.  */
 362   rs_machine_dependent,
 363
 364   /* .space directive with expression operand that needs to be computed
 365      later.  Similar to rs_org, but different.
 366      fr_symbol: operand
 367      1 variable char: fill character  */
 368   rs_space,
 369
 370   /* A DWARF leb128 value; only ELF uses this.  The subtype is 0 for
 371      unsigned, 1 for signed.  */
 372   rs_leb128,
 373
 374   /* Exception frame information which we may be able to optimize.  */
 375   rs_cfa,
 376
 377   /* Cross-fragment dwarf2 line number optimization.  */
 378   rs_dwarf2dbg
 379 };
 380
 381 typedef enum _relax_state relax_stateT;
 382
 383 /* This type is used in prototypes, so it can't be a type that will be
 384    widened for argument passing.  */
 385 typedef unsigned int relax_substateT;
 386
 387 /* Enough bits for address, but still an integer type.
 388    Could be a problem, cross-assembling for 64-bit machines.  */
 389 typedef addressT relax_addressT;
 390
 391 struct relax_type
 392 {
 393   /* Forward reach. Signed number. > 0.  */
 394   offsetT rlx_forward;
 395   /* Backward reach. Signed number. < 0.  */
 396   offsetT rlx_backward;
 397
 398   /* Bytes length of this address.  */
 399   unsigned char rlx_length;
 400
 401   /* Next longer relax-state.  0 means there is no 'next' relax-state.  */
 402   relax_substateT rlx_more;
 403 };
 404
 405 typedef struct relax_type relax_typeS;
 406 \f
 407 /* main program "as.c" (command arguments etc).  */
 408
 409 COMMON unsigned char flag_no_comments; /* -f */
 410 COMMON unsigned char flag_debug; /* -D */
 411 COMMON unsigned char flag_signed_overflow_ok; /* -J */
 412 #ifndef WORKING_DOT_WORD
 413 COMMON unsigned char flag_warn_displacement; /* -K */
 414 #endif
 415
 416 /* True if local symbols should be retained.  */
 417 COMMON int flag_keep_locals; /* -L */
 418
 419 /* True if we are assembling in MRI mode.  */
 420 COMMON int flag_mri;
 421
 422 /* Should the data section be made read-only and appended to the text
 423    section?  */
 424 COMMON unsigned char flag_readonly_data_in_text; /* -R */
 425
 426 /* True if warnings should be inhibited.  */
 427 COMMON int flag_no_warnings; /* -W */
 428
 429 /* True if warnings count as errors.  */
 430 COMMON int flag_fatal_warnings; /* --fatal-warnings */
 431
 432 /* True if we should attempt to generate output even if non-fatal errors
 433    are detected.  */
 434 COMMON unsigned char flag_always_generate_output; /* -Z */
 435
 436 /* This is true if the assembler should output time and space usage.  */
 437 COMMON unsigned char flag_print_statistics;
 438
 439 /* True if local absolute symbols are to be stripped.  */
 440 COMMON int flag_strip_local_absolute;
 441
 442 /* True if we should generate a traditional format object file.  */
 443 COMMON int flag_traditional_format;
 444
 445 /* TRUE if .note.GNU-stack section with SEC_CODE should be created */
 446 COMMON int flag_execstack;
 447
 448 /* TRUE if .note.GNU-stack section with SEC_CODE should be created */
 449 COMMON int flag_noexecstack;
 450
 451 /* name of emitted object file */
 452 COMMON char *out_file_name;
 453
 454 /* name of file defining extensions to the basic instruction set */
 455 COMMON char *insttbl_file_name;
 456
 457 /* TRUE if we need a second pass.  */
 458 COMMON int need_pass_2;
 459
 460 /* TRUE if we should do no relaxing, and
 461    leave lots of padding.  */
 462 COMMON int linkrelax;
 463
 464 /* TRUE if we should produce a listing.  */
 465 extern int listing;
 466
 467 /* Type of debugging information we should generate.  We currently support
 468    stabs, ECOFF, and DWARF2.
 469
 470    NOTE!  This means debug information about the assembly source code itself
 471    and _not_ about possible debug information from a high-level language.
 472    This is especially relevant to DWARF2, since the compiler may emit line
 473    number directives that the assembler resolves.  */
 474
 475 enum debug_info_type
 476 {
 477   DEBUG_UNSPECIFIED,
 478   DEBUG_NONE,
 479   DEBUG_STABS,
 480   DEBUG_ECOFF,
 481   DEBUG_DWARF,
 482   DEBUG_DWARF2
 483 };
 484
 485 extern enum debug_info_type debug_type;
 486 extern int use_gnu_debug_info_extensions;
 487 \f
 488 /* Maximum level of macro nesting.  */
 489 extern int max_macro_nest;
 490
 491 /* Verbosity level.  */
 492 extern int verbose;
 493
 494 /* Obstack chunk size.  Keep large for efficient space use, make small to
 495    increase malloc calls for monitoring memory allocation.  */
 496 extern int chunksize;
 497
 498 struct _pseudo_type
 499 {
 500   /* assembler mnemonic, lower case, no '.' */
 501   const char *poc_name;
 502   /* Do the work */
 503   void (*poc_handler) (int);
 504   /* Value to pass to handler */
 505   int poc_val;
 506 };
 507
 508 typedef struct _pseudo_type pseudo_typeS;
 509
 510 /* Prefer varargs for non-ANSI compiler, since some will barf if the
 511    ellipsis definition is used with a no-arguments declaration.  */
 512 #if defined (HAVE_VARARGS_H) && !defined (__STDC__)
 513 #undef HAVE_STDARG_H
 514 #endif
 515
 516 #if defined (HAVE_STDARG_H)
 517 #define USE_STDARG
 518 #endif
 519 #if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
 520 #define USE_VARARGS
 521 #endif
 522
 523 #ifdef USE_STDARG
 524 #if (__GNUC__ >= 2) && !defined(VMS)
 525 /* for use with -Wformat */
 526
 527 #if __GNUC__ == 2 && __GNUC_MINOR__ < 6
 528 /* Support for double underscores in attribute names was added in gcc
 529    2.6, so avoid them if we are using an earlier version.  */
 530 #define __printf__ printf
 531 #define __format__ format
 532 #endif
 533
 534 #define PRINTF_LIKE(FCN) \
 535   void FCN (const char *format, ...) \
 536     __attribute__ ((__format__ (__printf__, 1, 2)))
 537 #define PRINTF_WHERE_LIKE(FCN) \
 538   void FCN (char *file, unsigned int line, const char *format, ...) \
 539     __attribute__ ((__format__ (__printf__, 3, 4)))
 540
 541 #else /* __GNUC__ < 2 || defined(VMS) */
 542
 543 #define PRINTF_LIKE(FCN)        void FCN (const char *format, ...)
 544 #define PRINTF_WHERE_LIKE(FCN)  void FCN (char *file, \
 545                                           unsigned int line, \
 546                                           const char *format, ...)
 547
 548 #endif /* __GNUC__ < 2 || defined(VMS) */
 549
 550 #else /* ! USE_STDARG */
 551
 552 #define PRINTF_LIKE(FCN)        void FCN ()
 553 #define PRINTF_WHERE_LIKE(FCN)  void FCN ()
 554
 555 #endif /* ! USE_STDARG */
 556
 557 PRINTF_LIKE (as_bad);
 558 PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
 559 PRINTF_LIKE (as_tsktsk);
 560 PRINTF_LIKE (as_warn);
 561 PRINTF_WHERE_LIKE (as_bad_where);
 562 PRINTF_WHERE_LIKE (as_warn_where);
 563
 564 void   as_assert (const char *, int, const char *);
 565 void   as_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 566 void   fprint_value (FILE *, addressT);
 567 void   sprint_value (char *, addressT);
 568 int    had_errors (void);
 569 int    had_warnings (void);
 570 void   as_warn_value_out_of_range (char *, offsetT, offsetT, offsetT, char *, unsigned);
 571 void   as_bad_value_out_of_range (char *, offsetT, offsetT, offsetT, char *, unsigned);
 572 void   print_version_id (void);
 573 char * app_push (void);
 574 char * atof_ieee (char *, int, LITTLENUM_TYPE *);
 575 char * input_scrub_include_file (char *, char *);
 576 void   input_scrub_insert_line (const char *);
 577 void   input_scrub_insert_file (char *);
 578 char * input_scrub_new_file (char *);
 579 char * input_scrub_next_buffer (char **bufp);
 580 int    do_scrub_chars (int (*get) (char *, int), char *, int);
 581 int    gen_to_words (LITTLENUM_TYPE *, int, long);
 582 int    had_err (void);
 583 int    ignore_input (void);
 584 void   cond_finish_check (int);
 585 void   cond_exit_macro (int);
 586 int    seen_at_least_1_file (void);
 587 void   app_pop (char *);
 588 void   as_howmuch (FILE *);
 589 void   as_perror (const char *, const char *);
 590 void   as_where (char **, unsigned int *);
 591 void   bump_line_counters (void);
 592 void   do_scrub_begin (int);
 593 void   input_scrub_begin (void);
 594 void   input_scrub_close (void);
 595 void   input_scrub_end (void);
 596 int    new_logical_line (char *, int);
 597 void   subsegs_begin (void);
 598 void   subseg_change (segT, int);
 599 segT   subseg_new (const char *, subsegT);
 600 segT   subseg_force_new (const char *, subsegT);
 601 void   subseg_set (segT, subsegT);
 602 int    subseg_text_p (segT);
 603 int    seg_not_empty_p (segT);
 604 void   start_dependencies (char *);
 605 void   register_dependency (char *);
 606 void   print_dependencies (void);
 607 #ifdef BFD_ASSEMBLER
 608 segT   subseg_get (const char *, int);
 609 #endif
 610
 611 struct expressionS;
 612 struct fix;
 613 typedef struct symbol symbolS;
 614 struct relax_type;
 615 typedef struct frag fragS;
 616
 617 #ifdef BFD_ASSEMBLER
 618 /* literal.c */
 619 valueT add_to_literal_pool (symbolS *, valueT, segT, int);
 620 #endif
 621
 622 int check_eh_frame (struct expressionS *, unsigned int *);
 623 int eh_frame_estimate_size_before_relax (fragS *);
 624 int eh_frame_relax_frag (fragS *);
 625 void eh_frame_convert_frag (fragS *);
 626 int generic_force_reloc (struct fix *);
 627
 628 #include "expr.h"               /* Before targ-*.h */
 629
 630 /* This one starts the chain of target dependant headers.  */
 631 #include "targ-env.h"
 632
 633 #ifdef OBJ_MAYBE_ELF
 634 #define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
 635 #else
 636 #ifdef OBJ_ELF
 637 #define IS_ELF 1
 638 #else
 639 #define IS_ELF 0
 640 #endif
 641 #endif
 642
 643 #include "write.h"
 644 #include "frags.h"
 645 #include "hash.h"
 646 #include "read.h"
 647 #include "symbols.h"
 648
 649 #include "tc.h"
 650 #include "obj.h"
 651
 652 #ifdef USE_EMULATIONS
 653 #include "emul.h"
 654 #endif
 655 #include "listing.h"
 656
 657 #ifdef TC_M68K
 658 /* True if we are assembling in m68k MRI mode.  */
 659 COMMON int flag_m68k_mri;
 660 #else
 661 #define flag_m68k_mri 0
 662 #endif
 663
 664 #ifdef WARN_COMMENTS
 665 COMMON int           warn_comment;
 666 COMMON unsigned int  found_comment;
 667 COMMON char *        found_comment_file;
 668 #endif
 669
 670 #ifndef NUMBERS_WITH_SUFFIX
 671 #define NUMBERS_WITH_SUFFIX 0
 672 #endif
 673
 674 #ifndef LOCAL_LABELS_DOLLAR
 675 #define LOCAL_LABELS_DOLLAR 0
 676 #endif
 677
 678 #ifndef LOCAL_LABELS_FB
 679 #define LOCAL_LABELS_FB 0
 680 #endif
 681
 682 #ifndef LABELS_WITHOUT_COLONS
 683 #define LABELS_WITHOUT_COLONS 0
 684 #endif
 685
 686 #ifndef NO_PSEUDO_DOT
 687 #define NO_PSEUDO_DOT 0
 688 #endif
 689
 690 #ifndef TEXT_SECTION_NAME
 691 #define TEXT_SECTION_NAME       ".text"
 692 #define DATA_SECTION_NAME       ".data"
 693 #define BSS_SECTION_NAME        ".bss"
 694 #endif
 695
 696 #ifndef OCTETS_PER_BYTE_POWER
 697 #define OCTETS_PER_BYTE_POWER 0
 698 #endif
 699 #ifndef OCTETS_PER_BYTE
 700 #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
 701 #endif
 702 #if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
 703  #error "Octets per byte conflicts with its power-of-two definition!"
 704 #endif
 705
 706 #endif /* GAS */