gas/as.h

   1 /* as.h - global header file
   2    Copyright (C) 1987-2024 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    GAS is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to the Free
  18    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 #ifndef GAS
  22 #define GAS 1
  23 /* I think this stuff is largely out of date.  xoxorich.
  24
  25    CAPITALISED names are #defined.
  26    "lowercaseH" is #defined if "lowercase.h" has been #include-d.
  27    "lowercaseT" is a typedef of "lowercase" objects.
  28    "lowercaseP" is type "pointer to object of type 'lowercase'".
  29    "lowercaseS" is typedef struct ... lowercaseS.
  30
  31    #define DEBUG to enable all the "know" assertion tests.
  32    #define SUSPECT when debugging hash code.
  33    #define COMMON as "extern" for all modules except one, where you #define
  34         COMMON as "".
  35    If TEST is #defined, then we are testing a module: #define COMMON as "".  */
  36
  37 #include "config.h"
  38
  39 /* Now, tend to the rest of the configuration.  */
  40
  41 /* System include files first...  */
  42 #include <stdio.h>
  43 #include <string.h>
  44 #include <stdlib.h>
  45
  46 #ifdef HAVE_UNISTD_H
  47 #include <unistd.h>
  48 #endif
  49 #ifdef HAVE_SYS_TYPES_H
  50 /* for size_t, pid_t */
  51 #include <sys/types.h>
  52 #endif
  53
  54 #include <errno.h>
  55 #include <stdarg.h>
  56
  57 #include "getopt.h"
  58 /* The first getopt value for machine-independent long options.
  59    150 isn't special; it's just an arbitrary non-ASCII char value.  */
  60 #define OPTION_STD_BASE 150
  61 /* The first getopt value for machine-dependent long options.
  62    290 gives the standard options room to grow.  */
  63 #define OPTION_MD_BASE  290
  64
  65 #ifdef DEBUG
  66 #undef NDEBUG
  67 #endif
  68 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
  69 #define __PRETTY_FUNCTION__  ((char *) NULL)
  70 #endif
  71 #define gas_assert(P)   ((void) ((P) ? 0 : (abort (), 0)))
  72 #undef abort
  73 #define abort()         as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
  74
  75 /* Now GNU header files...  */
  76 #include "ansidecl.h"
  77 #include "bfd.h"
  78 #include "libiberty.h"
  79
  80 /* Other stuff from config.h.  */
  81 #ifdef NEED_DECLARATION_ENVIRON
  82 extern char **environ;
  83 #endif
  84 #ifdef NEED_DECLARATION_FFS
  85 extern int ffs (int);
  86 #endif
  87
  88 #if !HAVE_DECL_MEMPCPY
  89 void *mempcpy(void *, const void *, size_t);
  90 #endif
  91
  92 #ifndef __LINE__
  93 #define __LINE__ "unknown"
  94 #endif /* __LINE__ */
  95
  96 #ifndef __FILE__
  97 #define __FILE__ "unknown"
  98 #endif /* __FILE__ */
  99
 100 #ifndef FOPEN_WB
 101 #ifdef USE_BINARY_FOPEN
 102 #include "fopen-bin.h"
 103 #else
 104 #include "fopen-same.h"
 105 #endif
 106 #endif
 107
 108 #ifndef EXIT_SUCCESS
 109 #define EXIT_SUCCESS 0
 110 #define EXIT_FAILURE 1
 111 #endif
 112
 113 #ifndef SEEK_SET
 114 #define SEEK_SET 0
 115 #endif
 116
 117 #define obstack_chunk_alloc xmalloc
 118 #define obstack_chunk_free xfree
 119
 120 #define xfree free
 121
 122 #if GCC_VERSION >= 7000
 123 #define gas_mul_overflow(a, b, res) __builtin_mul_overflow (a, b, res)
 124 #else
 125 /* Assumes unsigned values.  Careful!  Args evaluated multiple times.  */
 126 #define gas_mul_overflow(a, b, res) \
 127   ((*res) = (a), (*res) *= (b), (b) != 0 && (*res) / (b) != (a))
 128 #endif
 129
 130 #include "asintl.h"
 131
 132 #define BAD_CASE(val)                                                       \
 133   {                                                                         \
 134     as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"),   \
 135               (long) val, __LINE__, __FILE__);                              \
 136   }
 137 \f
 138 #include "flonum.h"
 139
 140 /* These are assembler-wide concepts */
 141
 142 extern bfd *stdoutput;
 143 typedef bfd_vma addressT;
 144 typedef bfd_signed_vma offsetT;
 145
 146 /* Type of symbol value, etc.  For use in prototypes.  */
 147 typedef addressT valueT;
 148
 149 #ifndef COMMON
 150 #ifdef TEST
 151 #define COMMON                  /* Declare our COMMONs storage here.  */
 152 #else
 153 #define COMMON extern           /* Our commons live elsewhere.  */
 154 #endif
 155 #endif
 156 /* COMMON now defined */
 157
 158 #ifndef ENABLE_CHECKING
 159 #define ENABLE_CHECKING 0
 160 #endif
 161
 162 #if ENABLE_CHECKING || defined (DEBUG)
 163 #ifndef know
 164 #define know(p) gas_assert(p)   /* Verify our assumptions!  */
 165 #endif /* not yet defined */
 166 #else
 167 #define know(p) do {} while (0) /* know() checks are no-op.ed  */
 168 #endif
 169 \f
 170 /* input_scrub.c */
 171
 172 /* Supplies sanitised buffers to read.c.
 173    Also understands printing line-number part of error messages.  */
 174 \f
 175 /* subsegs.c     Sub-segments. Also, segment(=expression type)s.*/
 176
 177 typedef asection *segT;
 178 #define SEG_NORMAL(SEG)         (   (SEG) != absolute_section   \
 179                                  && (SEG) != undefined_section  \
 180                                  && (SEG) != reg_section        \
 181                                  && (SEG) != expr_section)
 182 typedef int subsegT;
 183
 184 /* What subseg we are accessing now?  */
 185 COMMON subsegT now_subseg;
 186
 187 /* Segment our instructions emit to.  */
 188 COMMON segT now_seg;
 189
 190 #define segment_name(SEG)       bfd_section_name (SEG)
 191
 192 extern segT reg_section, expr_section;
 193 /* Shouldn't these be eliminated someday?  */
 194 extern segT text_section, data_section, bss_section;
 195 #define absolute_section        bfd_abs_section_ptr
 196 #define undefined_section       bfd_und_section_ptr
 197
 198 enum _relax_state
 199 {
 200   /* Dummy frag used by listing code.  */
 201   rs_dummy = 0,
 202
 203   /* Variable chars to be repeated fr_offset times.
 204      Fr_symbol unused. Used with fr_offset == 0 for a
 205      constant length frag.  */
 206   rs_fill,
 207
 208   /* Align.  The fr_offset field holds the power of 2 to which to
 209      align.  The fr_var field holds the number of characters in the
 210      fill pattern.  The fr_subtype field holds the maximum number of
 211      bytes to skip when aligning, or 0 if there is no maximum.  */
 212   rs_align,
 213
 214   /* Align code.  The fr_offset field holds the power of 2 to which
 215      to align.  This type is only generated by machine specific
 216      code, which is normally responsible for handling the fill
 217      pattern.  The fr_subtype field holds the maximum number of
 218      bytes to skip when aligning, or 0 if there is no maximum.  */
 219   rs_align_code,
 220
 221   /* Test for alignment.  Like rs_align, but used by several targets
 222      to warn if data is not properly aligned.  */
 223   rs_align_test,
 224
 225   /* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
 226      character.  */
 227   rs_org,
 228
 229 #ifndef WORKING_DOT_WORD
 230   /* JF: gunpoint */
 231   rs_broken_word,
 232 #endif
 233
 234   /* Machine specific relaxable (or similarly alterable) instruction.  */
 235   rs_machine_dependent,
 236
 237   /* .space directive with expression operand that needs to be computed
 238      later.  Similar to rs_org, but different.
 239      fr_symbol: operand
 240      1 variable char: fill character  */
 241   rs_space,
 242
 243   /* .nop directive with expression operand that needs to be computed
 244      later.  Similar to rs_space, but different.  It fills with no-op
 245      instructions.
 246      fr_symbol: operand
 247      1 constant byte: no-op fill control byte.  */
 248   rs_space_nop,
 249
 250   /* Similar to rs_fill.  It is used to implement .nops directive.
 251      When listings are enabled, fr_opcode gets the buffer assigned, once
 252      that's available.  */
 253   rs_fill_nop,
 254
 255   /* A DWARF leb128 value; only ELF uses this.  The subtype is 0 for
 256      unsigned, 1 for signed.  */
 257   rs_leb128,
 258
 259   /* Exception frame information which we may be able to optimize.  */
 260   rs_cfa,
 261
 262   /* Cross-fragment dwarf2 line number optimization.  */
 263   rs_dwarf2dbg,
 264
 265   /* SFrame FRE type selection optimization.  */
 266   rs_sframe
 267 };
 268
 269 typedef enum _relax_state relax_stateT;
 270
 271 /* This type is used in prototypes, so it can't be a type that will be
 272    widened for argument passing.  */
 273 typedef unsigned int relax_substateT;
 274
 275 /* Enough bits for address, but still an integer type.
 276    Could be a problem, cross-assembling for 64-bit machines.  */
 277 typedef addressT relax_addressT;
 278
 279 struct relax_type
 280 {
 281   /* Forward reach. Signed number. > 0.  */
 282   offsetT rlx_forward;
 283   /* Backward reach. Signed number. < 0.  */
 284   offsetT rlx_backward;
 285
 286   /* Bytes length of this address.  */
 287   unsigned char rlx_length;
 288
 289   /* Next longer relax-state.  0 means there is no 'next' relax-state.  */
 290   relax_substateT rlx_more;
 291 };
 292
 293 typedef struct relax_type relax_typeS;
 294 \f
 295 /* main program "as.c" (command arguments etc).  */
 296
 297 COMMON unsigned char flag_no_comments; /* -f */
 298 COMMON unsigned char flag_debug; /* -D */
 299 COMMON unsigned char flag_signed_overflow_ok; /* -J */
 300 #ifndef WORKING_DOT_WORD
 301 COMMON unsigned char flag_warn_displacement; /* -K */
 302 #endif
 303
 304 /* True if local symbols should be retained.  */
 305 COMMON int flag_keep_locals; /* -L */
 306
 307 /* True if we are assembling in MRI mode.  */
 308 COMMON int flag_mri;
 309
 310 /* True if alternate macro mode is in effect.  */
 311 COMMON bool flag_macro_alternate;
 312
 313 /* Should the data section be made read-only and appended to the text
 314    section?  */
 315 COMMON unsigned char flag_readonly_data_in_text; /* -R */
 316
 317 /* True if warnings should be inhibited.  */
 318 COMMON int flag_no_warnings; /* -W */
 319
 320 /* True if warnings count as errors.  */
 321 COMMON int flag_fatal_warnings; /* --fatal-warnings */
 322
 323 /* True if we should attempt to generate output even if non-fatal errors
 324    are detected.  */
 325 COMMON unsigned char flag_always_generate_output; /* -Z */
 326
 327 enum synth_cfi_type
 328 {
 329   SYNTH_CFI_NONE = 0,
 330   SYNTH_CFI_EXPERIMENTAL,
 331 };
 332
 333 COMMON enum synth_cfi_type flag_synth_cfi;
 334
 335 /* This is true if the assembler should output time and space usage.  */
 336 COMMON unsigned char flag_print_statistics;
 337
 338 /* True if local absolute symbols are to be stripped.  */
 339 COMMON int flag_strip_local_absolute;
 340
 341 /* True if we should generate a traditional format object file.  */
 342 COMMON int flag_traditional_format;
 343
 344 /* Type of compressed debug sections we should generate.   */
 345 COMMON enum compressed_debug_section_type flag_compress_debug;
 346
 347 /* TRUE if .note.GNU-stack section with SEC_CODE should be created */
 348 COMMON int flag_execstack;
 349
 350 /* TRUE if .note.GNU-stack section with SEC_CODE should be created */
 351 COMMON int flag_noexecstack;
 352
 353 /* TRUE if .sframe section should be created.  */
 354 COMMON int flag_gen_sframe;
 355
 356 /* name of emitted object file */
 357 COMMON const char *out_file_name;
 358
 359 /* Keep the output file.  */
 360 COMMON int keep_it;
 361
 362 /* name of file defining extensions to the basic instruction set */
 363 COMMON char *insttbl_file_name;
 364
 365 /* TRUE if we need a second pass.  */
 366 COMMON int need_pass_2;
 367
 368 /* TRUE if we should do no relaxing, and
 369    leave lots of padding.  */
 370 COMMON int linkrelax;
 371
 372 COMMON int do_not_pad_sections_to_alignment;
 373
 374 enum multibyte_input_handling
 375 {
 376   multibyte_allow = 0,
 377   multibyte_warn,
 378   multibyte_warn_syms
 379 };
 380 COMMON enum multibyte_input_handling multibyte_handling;
 381
 382 /* TRUE if we should produce a listing.  */
 383 extern int listing;
 384
 385 /* Type of debugging information we should generate.  We currently support
 386    stabs, ECOFF, and DWARF2.
 387
 388    NOTE!  This means debug information about the assembly source code itself
 389    and _not_ about possible debug information from a high-level language.
 390    This is especially relevant to DWARF2, since the compiler may emit line
 391    number directives that the assembler resolves.  */
 392
 393 enum debug_info_type
 394 {
 395   DEBUG_UNSPECIFIED,
 396   DEBUG_NONE,
 397   DEBUG_STABS,
 398   DEBUG_ECOFF,
 399   DEBUG_DWARF,
 400   DEBUG_DWARF2,
 401   DEBUG_CODEVIEW
 402 };
 403
 404 extern enum debug_info_type debug_type;
 405 extern int use_gnu_debug_info_extensions;
 406 COMMON bool flag_dwarf_sections;
 407 extern int flag_dwarf_cie_version;
 408 extern unsigned int dwarf_level;
 409 \f
 410 /* Maximum level of macro nesting.  */
 411 extern int max_macro_nest;
 412
 413 /* Verbosity level.  */
 414 extern int verbose;
 415
 416 struct obstack;
 417
 418 /* Obstack chunk size.  Keep large for efficient space use, make small to
 419    increase malloc calls for monitoring memory allocation.  */
 420 extern int chunksize;
 421
 422 struct _pseudo_type
 423 {
 424   /* assembler mnemonic, lower case, no '.' */
 425   const char *poc_name;
 426   /* Do the work */
 427   void (*poc_handler) (int);
 428   /* Value to pass to handler */
 429   int poc_val;
 430 };
 431
 432 typedef struct _pseudo_type pseudo_typeS;
 433
 434 #if (__GNUC__ >= 2) && !defined(VMS)
 435 /* for use with -Wformat */
 436
 437 #if __GNUC__ == 2 && __GNUC_MINOR__ < 6
 438 /* Support for double underscores in attribute names was added in gcc
 439    2.6, so avoid them if we are using an earlier version.  */
 440 #define __printf__ printf
 441 #define __format__ format
 442 #endif
 443
 444 #define PRINTF_LIKE(FCN) \
 445   void FCN (const char *format, ...) \
 446     __attribute__ ((__format__ (__printf__, 1, 2)))
 447 #define PRINTF_WHERE_LIKE(FCN) \
 448   void FCN (const char *file, unsigned int line, const char *format, ...) \
 449     __attribute__ ((__format__ (__printf__, 3, 4)))
 450 #define PRINTF_INDENT_LIKE(FCN) \
 451   void FCN (const char *file, unsigned int line, unsigned int indent, \
 452             const char *format, ...) \
 453     __attribute__ ((__format__ (__printf__, 4, 5)))
 454
 455 #else /* __GNUC__ < 2 || defined(VMS) */
 456
 457 #define PRINTF_LIKE(FCN)        void FCN (const char *format, ...)
 458 #define PRINTF_WHERE_LIKE(FCN)  void FCN (const char *file, \
 459                                           unsigned int line, \
 460                                           const char *format, ...)
 461 #define PRINTF_INDENT_LIKE(FCN) void FCN (const char *file, \
 462                                           unsigned int line, \
 463                                           unsigned int indent, \
 464                                           const char *format, ...)
 465
 466 #endif /* __GNUC__ < 2 || defined(VMS) */
 467
 468 PRINTF_LIKE (as_bad);
 469 PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
 470 PRINTF_LIKE (as_tsktsk);
 471 PRINTF_LIKE (as_warn);
 472 PRINTF_WHERE_LIKE (as_bad_where);
 473 PRINTF_WHERE_LIKE (as_warn_where);
 474 PRINTF_INDENT_LIKE (as_info_where);
 475
 476 void   as_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 477 void   signal_init (void);
 478 int    had_errors (void);
 479 int    had_warnings (void);
 480 void   as_warn_value_out_of_range (const char *, offsetT, offsetT, offsetT,
 481                                    const char *, unsigned);
 482 void   as_bad_value_out_of_range (const char *, offsetT, offsetT, offsetT,
 483                                   const char *, unsigned);
 484 void   print_version_id (void);
 485 char * app_push (void);
 486
 487 /* Number of littlenums required to hold an extended precision number.  */
 488 #define MAX_LITTLENUMS 6
 489
 490 char * atof_ieee (char *, int, LITTLENUM_TYPE *);
 491 char * atof_ieee_detail (char *, int, int, LITTLENUM_TYPE *, FLONUM_TYPE *);
 492 const char * ieee_md_atof (int, char *, int *, bool);
 493 const char * vax_md_atof (int, char *, int *);
 494 char * input_scrub_include_file (const char *, char *);
 495 void   input_scrub_insert_line (const char *);
 496 void   input_scrub_insert_file (char *);
 497 char * input_scrub_new_file (const char *);
 498 char * input_scrub_next_buffer (char **bufp);
 499 size_t do_scrub_chars (size_t (*get) (char *, size_t), char *, size_t);
 500 size_t do_scrub_pending (void);
 501 bool   scan_for_multibyte_characters (const unsigned char *, const unsigned char *, bool);
 502 int    gen_to_words (LITTLENUM_TYPE *, int, long);
 503 int    had_err (void);
 504 int    ignore_input (void);
 505 void   cond_finish_check (int);
 506 void   cond_exit_macro (int);
 507 int    seen_at_least_1_file (void);
 508 void   app_pop (char *);
 509 void   as_report_context (void);
 510 const char * as_where (unsigned int *);
 511 const char * as_where_top (unsigned int *);
 512 const char * as_where_physical (unsigned int *);
 513 void   bump_line_counters (void);
 514 void   do_scrub_begin (int);
 515 void   input_scrub_begin (void);
 516 void   input_scrub_close (void);
 517 void   input_scrub_end (void);
 518 void   new_logical_line (const char *, int);
 519 void   new_logical_line_flags (const char *, int, int);
 520 void   subsegs_begin (void);
 521 void   subsegs_end (struct obstack **);
 522 void   subseg_change (segT, int);
 523 segT   subseg_new (const char *, subsegT);
 524 segT   subseg_force_new (const char *, subsegT);
 525 void   subseg_set (segT, subsegT);
 526 int    subseg_text_p (segT);
 527 int    seg_not_empty_p (segT);
 528 void   start_dependencies (char *);
 529 void   register_dependency (const char *);
 530 void   print_dependencies (void);
 531 segT   subseg_get (const char *, int);
 532
 533 char *remap_debug_filename (const char *);
 534 void add_debug_prefix_map (const char *);
 535
 536 static inline char *
 537 xmemdup0 (const char *in, size_t len)
 538 {
 539   return xmemdup (in, len, len + 1);
 540 }
 541
 542 struct expressionS;
 543 struct fix;
 544 typedef struct symbol symbolS;
 545 typedef struct frag fragS;
 546
 547 /* literal.c */
 548 valueT add_to_literal_pool (symbolS *, valueT, segT, int);
 549
 550 int check_eh_frame (struct expressionS *, unsigned int *);
 551 int eh_frame_estimate_size_before_relax (fragS *);
 552 int eh_frame_relax_frag (fragS *);
 553 void eh_frame_convert_frag (fragS *);
 554 void eh_begin (void);
 555 int generic_force_reloc (struct fix *);
 556
 557 /* SFrame FRE optimization.  */
 558 int sframe_estimate_size_before_relax (fragS *);
 559 int sframe_relax_frag (fragS *);
 560 void sframe_convert_frag (fragS *);
 561
 562 #include "expr.h"               /* Before targ-*.h */
 563
 564 /* This one starts the chain of target dependent headers.  */
 565 #include "targ-env.h"
 566
 567 #ifdef OBJ_MAYBE_ELF
 568 #define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
 569 #else
 570 #ifdef OBJ_ELF
 571 #define IS_ELF 1
 572 #else
 573 #define IS_ELF 0
 574 #endif
 575 #endif
 576
 577 #include "write.h"
 578 #include "frags.h"
 579 #include "read.h"
 580 #include "symbols.h"
 581 #include "hashtab.h"
 582 #include "hash.h"
 583
 584 #include "tc.h"
 585 #include "obj.h"
 586
 587 #ifdef USE_EMULATIONS
 588 #include "emul.h"
 589 #endif
 590 #include "listing.h"
 591
 592 #ifdef H_TICK_HEX
 593 extern int enable_h_tick_hex;
 594 #endif
 595
 596 #ifdef TC_M68K
 597 /* True if we are assembling in m68k MRI mode.  */
 598 COMMON int flag_m68k_mri;
 599 #define DOLLAR_AMBIGU flag_m68k_mri
 600 #else
 601 #define flag_m68k_mri 0
 602 #endif
 603
 604 #ifndef TC_STRING_ESCAPES
 605 #define TC_STRING_ESCAPES 1
 606 #endif
 607
 608 #ifdef WARN_COMMENTS
 609 COMMON int           warn_comment;
 610 COMMON unsigned int  found_comment;
 611 COMMON const char *        found_comment_file;
 612 #endif
 613
 614 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 615 /* If .size directive failure should be error or warning.  */
 616 COMMON int flag_allow_nonconst_size;
 617
 618 /* If we should generate ELF common symbols with the STT_COMMON type.  */
 619 extern int flag_use_elf_stt_common;
 620
 621 /* TRUE iff GNU Build attribute notes should
 622    be generated if none are in the input files.  */
 623 extern bool flag_generate_build_notes;
 624
 625 /* If section name substitution sequences should be honored */
 626 COMMON int flag_sectname_subst;
 627 #endif
 628
 629 #ifndef DOLLAR_AMBIGU
 630 #define DOLLAR_AMBIGU 0
 631 #endif
 632
 633 #ifndef NUMBERS_WITH_SUFFIX
 634 #define NUMBERS_WITH_SUFFIX 0
 635 #endif
 636
 637 #ifndef LOCAL_LABELS_DOLLAR
 638 #define LOCAL_LABELS_DOLLAR 0
 639 #endif
 640
 641 #ifndef LOCAL_LABELS_FB
 642 #define LOCAL_LABELS_FB 0
 643 #endif
 644
 645 #ifndef LABELS_WITHOUT_COLONS
 646 #define LABELS_WITHOUT_COLONS 0
 647 #endif
 648
 649 #ifndef NO_PSEUDO_DOT
 650 #define NO_PSEUDO_DOT 0
 651 #endif
 652
 653 #ifndef TEXT_SECTION_NAME
 654 #define TEXT_SECTION_NAME       ".text"
 655 #define DATA_SECTION_NAME       ".data"
 656 #define BSS_SECTION_NAME        ".bss"
 657 #endif
 658
 659 #ifndef OCTETS_PER_BYTE_POWER
 660 #define OCTETS_PER_BYTE_POWER 0
 661 #endif
 662 #ifndef OCTETS_PER_BYTE
 663 #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
 664 #endif
 665 #if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
 666  #error "Octets per byte conflicts with its power-of-two definition!"
 667 #endif
 668
 669 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 670 /* On ELF platforms, mark debug sections with SEC_ELF_OCTETS */
 671 #define SEC_OCTETS (IS_ELF ? SEC_ELF_OCTETS : 0)
 672 #else
 673 #define SEC_OCTETS 0
 674 #endif
 675
 676 #define POISON_BFD_BOOLEAN 1
 677
 678 #endif /* GAS */