]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - gas/as.h
2000-10-12 Kazu Hirata <kazu@hxi.com>
[thirdparty/binutils-gdb.git] / gas / as.h
1 /* as.h - global header file
2 Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
3 Free Software Foundation, Inc.
4
5 This file is part of GAS, the GNU Assembler.
6
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
21
22 #ifndef GAS
23 #define GAS 1
24 /* I think this stuff is largely out of date. xoxorich.
25 *
26 * CAPITALISED names are #defined.
27 * "lowercaseH" is #defined if "lowercase.h" has been #include-d.
28 * "lowercaseT" is a typedef of "lowercase" objects.
29 * "lowercaseP" is type "pointer to object of type 'lowercase'".
30 * "lowercaseS" is typedef struct ... lowercaseS.
31 *
32 * #define DEBUG to enable all the "know" assertion tests.
33 * #define SUSPECT when debugging hash code.
34 * #define COMMON as "extern" for all modules except one, where you #define
35 * COMMON as "".
36 * If TEST is #defined, then we are testing a module: #define COMMON as "".
37 */
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 #undef for DJ Delorie. The right fix is to ensure that as.h
46 is included first, before even any system header files, in all files
47 that use it. KR 1994.11.03 */
48 /* Added void* version for STDC case. This is to be compatible with
49 the declaration in bison.simple, used for m68k operand parsing.
50 --KR 1995.08.08 */
51 /* Force void* decl for hpux. This is what Bison uses. --KR 1995.08.16 */
52
53 /* AIX requires this to be the first thing in the file. */
54 #ifdef __GNUC__
55 # ifndef alloca
56 # ifdef __STDC__
57 extern void *alloca ();
58 # else
59 extern char *alloca ();
60 # endif
61 # endif
62 #else
63 # if HAVE_ALLOCA_H
64 # include <alloca.h>
65 # else
66 # ifdef _AIX
67 #pragma alloca
68 # else
69 # ifndef alloca /* predefined by HP cc +Olibcalls */
70 # if !defined (__STDC__) && !defined (__hpux)
71 extern char *alloca ();
72 # else
73 extern void *alloca ();
74 # endif /* __STDC__, __hpux */
75 # endif /* alloca */
76 # endif /* _AIX */
77 # endif /* HAVE_ALLOCA_H */
78 #endif
79
80 /* Now, tend to the rest of the configuration. */
81
82 /* System include files first... */
83 #include <stdio.h>
84 #include <ctype.h>
85 #ifdef HAVE_STRING_H
86 #include <string.h>
87 #else
88 #ifdef HAVE_STRINGS_H
89 #include <strings.h>
90 #endif
91 #endif
92 #ifdef HAVE_STDLIB_H
93 #include <stdlib.h>
94 #endif
95 #ifdef HAVE_UNISTD_H
96 #include <unistd.h>
97 #endif
98 #ifdef HAVE_SYS_TYPES_H
99 /* for size_t, pid_t */
100 #include <sys/types.h>
101 #endif
102
103 #include <getopt.h>
104 /* The first getopt value for machine-independent long options.
105 150 isn't special; it's just an arbitrary non-ASCII char value. */
106 #define OPTION_STD_BASE 150
107 /* The first getopt value for machine-dependent long options.
108 170 gives the standard options room to grow. */
109 #define OPTION_MD_BASE 170
110
111 #ifdef DEBUG
112 #undef NDEBUG
113 #endif
114 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
115 #define __PRETTY_FUNCTION__ ((char*)0)
116 #endif
117 #if 0
118
119 /* Handle lossage with assert.h. */
120 #ifndef BROKEN_ASSERT
121 #include <assert.h>
122 #else /* BROKEN_ASSERT */
123 #ifndef NDEBUG
124 #define assert(p) ((p) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
125 #else
126 #define assert(p) ((p), 0)
127 #endif
128 #endif /* BROKEN_ASSERT */
129
130 #else
131
132 #define assert(P) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
133 #undef abort
134 #define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
135
136 #endif
137
138 /* Now GNU header files... */
139 #include "ansidecl.h"
140 #ifdef BFD_ASSEMBLER
141 #include "bfd.h"
142 #endif
143 #include "libiberty.h"
144
145 /* Define the standard progress macros. */
146 #include "progress.h"
147
148 /* This doesn't get taken care of anywhere. */
149 #ifndef __MWERKS__ /* Metrowerks C chokes on the "defined (inline)" */
150 #if !defined (__GNUC__) && !defined (inline)
151 #define inline
152 #endif
153 #endif /* !__MWERKS__ */
154
155 /* Other stuff from config.h. */
156 #ifdef NEED_DECLARATION_STRSTR
157 extern char *strstr ();
158 #endif
159 #ifdef NEED_DECLARATION_MALLOC
160 extern PTR malloc ();
161 extern PTR realloc ();
162 #endif
163 #ifdef NEED_DECLARATION_FREE
164 extern void free ();
165 #endif
166 #ifdef NEED_DECLARATION_ERRNO
167 extern int errno;
168 #endif
169 #ifdef NEED_DECLARATION_ENVIRON
170 extern char **environ;
171 #endif
172
173 /* This is needed for VMS. */
174 #if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
175 #define unlink remove
176 #endif
177
178 /* Hack to make "gcc -Wall" not complain about obstack macros. */
179 #if !defined (memcpy) && !defined (bcopy)
180 #define bcopy(src,dest,size) memcpy(dest,src,size)
181 #endif
182
183 /* Make Saber happier on obstack.h. */
184 #ifdef SABER
185 #undef __PTR_TO_INT
186 #define __PTR_TO_INT(P) ((int)(P))
187 #undef __INT_TO_PTR
188 #define __INT_TO_PTR(P) ((char *)(P))
189 #endif
190
191 #ifndef __LINE__
192 #define __LINE__ "unknown"
193 #endif /* __LINE__ */
194
195 #ifndef __FILE__
196 #define __FILE__ "unknown"
197 #endif /* __FILE__ */
198
199 #ifndef FOPEN_WB
200 #ifdef GO32
201 #include "fopen-bin.h"
202 #else
203 #include "fopen-same.h"
204 #endif
205 #endif
206
207 #ifndef EXIT_SUCCESS
208 #define EXIT_SUCCESS 0
209 #define EXIT_FAILURE 1
210 #endif
211
212 #ifndef SEEK_SET
213 #define SEEK_SET 0
214 #endif
215
216 #define obstack_chunk_alloc xmalloc
217 #define obstack_chunk_free xfree
218
219 #define xfree free
220
221 #include "asintl.h"
222
223 #define BAD_CASE(val) \
224 { \
225 as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"), \
226 (long) val, __LINE__, __FILE__); \
227 }
228 \f
229 #include "flonum.h"
230
231 /* These are assembler-wide concepts */
232
233 #ifdef BFD_ASSEMBLER
234 extern bfd *stdoutput;
235 typedef bfd_vma addressT;
236 typedef bfd_signed_vma offsetT;
237 #else
238 typedef unsigned long addressT;
239 typedef long offsetT;
240 #endif
241
242 /* Type of symbol value, etc. For use in prototypes. */
243 typedef addressT valueT;
244
245 #ifndef COMMON
246 #ifdef TEST
247 #define COMMON /* declare our COMMONs storage here. */
248 #else
249 #define COMMON extern /* our commons live elswhere */
250 #endif
251 #endif
252 /* COMMON now defined */
253
254 #ifdef DEBUG
255 #ifndef know
256 #define know(p) assert(p) /* Verify our assumptions! */
257 #endif /* not yet defined */
258 #else
259 #define know(p) /* know() checks are no-op.ed */
260 #endif
261 \f
262 /* input_scrub.c */
263
264 /* Supplies sanitised buffers to read.c.
265 Also understands printing line-number part of error messages. */
266 \f
267 /* subsegs.c Sub-segments. Also, segment(=expression type)s.*/
268
269 #ifndef BFD_ASSEMBLER
270
271 #ifdef MANY_SEGMENTS
272 #include "bfd.h"
273 #define N_SEGMENTS 40
274 #define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
275 #define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9,\
276 SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
277 SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
278 SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
279 #define SEG_TEXT SEG_E0
280 #define SEG_DATA SEG_E1
281 #define SEG_BSS SEG_E2
282 #define SEG_LAST SEG_E39
283 #else
284 #define N_SEGMENTS 3
285 #define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
286 #define SEG_LIST SEG_TEXT,SEG_DATA,SEG_BSS
287 #endif
288
289 typedef enum _segT {
290 SEG_ABSOLUTE = 0,
291 SEG_LIST,
292 SEG_UNKNOWN,
293 SEG_GOOF, /* Only happens if AS has a logic error. */
294 /* Invented so we don't crash printing */
295 /* error message involving weird segment. */
296 SEG_EXPR, /* Intermediate expression values. */
297 SEG_DEBUG, /* Debug segment */
298 SEG_NTV, /* Transfert vector preload segment */
299 SEG_PTV, /* Transfert vector postload segment */
300 SEG_REGISTER /* Mythical: a register-valued expression */
301 } segT;
302
303 #define SEG_MAXIMUM_ORDINAL (SEG_REGISTER)
304 #else
305 typedef asection *segT;
306 #define SEG_NORMAL(SEG) ((SEG) != absolute_section \
307 && (SEG) != undefined_section \
308 && (SEG) != reg_section \
309 && (SEG) != expr_section)
310 #endif
311 typedef int subsegT;
312
313 /* What subseg we are accreting now? */
314 COMMON subsegT now_subseg;
315
316 /* Segment our instructions emit to. */
317 COMMON segT now_seg;
318
319 #ifdef BFD_ASSEMBLER
320 #define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
321 #else
322 extern char const *const seg_name[];
323 #define segment_name(SEG) seg_name[(int) (SEG)]
324 #endif
325
326 #ifndef BFD_ASSEMBLER
327 extern int section_alignment[];
328 #endif
329
330 #ifdef BFD_ASSEMBLER
331 extern segT reg_section, expr_section;
332 /* Shouldn't these be eliminated someday? */
333 extern segT text_section, data_section, bss_section;
334 #define absolute_section bfd_abs_section_ptr
335 #define undefined_section bfd_und_section_ptr
336 #else
337 #define reg_section SEG_REGISTER
338 #define expr_section SEG_EXPR
339 #define text_section SEG_TEXT
340 #define data_section SEG_DATA
341 #define bss_section SEG_BSS
342 #define absolute_section SEG_ABSOLUTE
343 #define undefined_section SEG_UNKNOWN
344 #endif
345
346 /* relax() */
347
348 enum _relax_state {
349 /* Variable chars to be repeated fr_offset times.
350 Fr_symbol unused. Used with fr_offset == 0 for a
351 constant length frag. */
352 rs_fill = 1,
353
354 /* Align. The fr_offset field holds the power of 2 to which to
355 align. The fr_var field holds the number of characters in the
356 fill pattern. The fr_subtype field holds the maximum number of
357 bytes to skip when aligning, or 0 if there is no maximum. */
358 rs_align,
359
360 /* Align code. The fr_offset field holds the power of 2 to which
361 to align. This type is only generated by machine specific
362 code, which is normally responsible for handling the fill
363 pattern. The fr_subtype field holds the maximum number of
364 bytes to skip when aligning, or 0 if there is no maximum. */
365 rs_align_code,
366
367 /* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
368 character. */
369 rs_org,
370
371 #ifndef WORKING_DOT_WORD
372 /* JF: gunpoint */
373 rs_broken_word,
374 #endif
375
376 /* machine-specific relaxable (or similarly alterable) instruction */
377 rs_machine_dependent,
378
379 /* .space directive with expression operand that needs to be computed
380 later. Similar to rs_org, but different.
381 fr_symbol: operand
382 1 variable char: fill character */
383 rs_space,
384
385 /* A DWARF leb128 value; only ELF uses this. The subtype is 0 for
386 unsigned, 1 for signed. */
387 rs_leb128,
388
389 /* Exception frame information which we may be able to optimize. */
390 rs_cfa
391 };
392
393 typedef enum _relax_state relax_stateT;
394
395 /* This type is used in prototypes, so it can't be a type that will be
396 widened for argument passing. */
397 typedef unsigned int relax_substateT;
398
399 /* Enough bits for address, but still an integer type.
400 Could be a problem, cross-assembling for 64-bit machines. */
401 typedef addressT relax_addressT;
402 \f
403 /* main program "as.c" (command arguments etc) */
404
405 COMMON unsigned char flag_no_comments; /* -f */
406 COMMON unsigned char flag_debug; /* -D */
407 COMMON unsigned char flag_signed_overflow_ok; /* -J */
408 #ifndef WORKING_DOT_WORD
409 COMMON unsigned char flag_warn_displacement; /* -K */
410 #endif
411
412 /* True if local symbols should be retained. */
413 COMMON int flag_keep_locals; /* -L */
414
415 /* True if we are assembling in MRI mode. */
416 COMMON int flag_mri;
417
418 /* Should the data section be made read-only and appended to the text
419 section? */
420 COMMON unsigned char flag_readonly_data_in_text; /* -R */
421
422 /* True if warnings should be inhibited. */
423 COMMON int flag_no_warnings; /* -W */
424
425 /* True if warnings count as errors. */
426 COMMON int flag_fatal_warnings; /* --fatal-warnings */
427
428 /* True if we should attempt to generate output even if non-fatal errors
429 are detected. */
430 COMMON unsigned char flag_always_generate_output; /* -Z */
431
432 /* This is true if the assembler should output time and space usage. */
433 COMMON unsigned char flag_print_statistics;
434
435 /* True if local absolute symbols are to be stripped. */
436 COMMON int flag_strip_local_absolute;
437
438 /* True if we should generate a traditional format object file. */
439 COMMON int flag_traditional_format;
440
441 /* name of emitted object file */
442 COMMON char *out_file_name;
443
444 /* name of file defining extensions to the basic instruction set */
445 COMMON char *insttbl_file_name;
446
447 /* TRUE if we need a second pass. */
448 COMMON int need_pass_2;
449
450 /* TRUE if we should do no relaxing, and
451 leave lots of padding. */
452 COMMON int linkrelax;
453
454 /* TRUE if we should produce a listing. */
455 extern int listing;
456
457 /* Type of debugging information we should generate. We currently
458 support stabs, ECOFF, and DWARF2. */
459
460 enum debug_info_type {
461 DEBUG_UNSPECIFIED,
462 DEBUG_NONE,
463 DEBUG_STABS,
464 DEBUG_ECOFF,
465 DEBUG_DWARF,
466 DEBUG_DWARF2
467 };
468
469 extern enum debug_info_type debug_type;
470 \f
471 /* Maximum level of macro nesting. */
472 extern int max_macro_nest;
473
474 /* Obstack chunk size. Keep large for efficient space use, make small to
475 increase malloc calls for monitoring memory allocation. */
476 extern int chunksize;
477
478 struct _pseudo_type {
479 /* assembler mnemonic, lower case, no '.' */
480 const char *poc_name;
481 /* Do the work */
482 void (*poc_handler) PARAMS ((int));
483 /* Value to pass to handler */
484 int poc_val;
485 };
486
487 typedef struct _pseudo_type pseudo_typeS;
488
489 /* Prefer varargs for non-ANSI compiler, since some will barf if the
490 ellipsis definition is used with a no-arguments declaration. */
491 #if defined (HAVE_VARARGS_H) && !defined (__STDC__)
492 #undef HAVE_STDARG_H
493 #endif
494
495 #if defined (HAVE_STDARG_H)
496 #define USE_STDARG
497 #endif
498 #if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
499 #define USE_VARARGS
500 #endif
501
502 #ifdef USE_STDARG
503 #if (__GNUC__ >= 2) && !defined(VMS)
504 /* for use with -Wformat */
505
506 #if __GNUC__ == 2 && __GNUC_MINOR__ < 6
507 /* Support for double underscores in attribute names was added in gcc
508 2.6, so avoid them if we are using an earlier version. */
509 #define __printf__ printf
510 #define __format__ format
511 #endif
512
513 #define PRINTF_LIKE(FCN) \
514 void FCN (const char *format, ...) \
515 __attribute__ ((__format__ (__printf__, 1, 2)))
516 #define PRINTF_WHERE_LIKE(FCN) \
517 void FCN (char *file, unsigned int line, const char *format, ...) \
518 __attribute__ ((__format__ (__printf__, 3, 4)))
519
520 #else /* __GNUC__ < 2 || defined(VMS) */
521
522 #define PRINTF_LIKE(FCN) void FCN PARAMS ((const char *format, ...))
523 #define PRINTF_WHERE_LIKE(FCN) void FCN PARAMS ((char *file, \
524 unsigned int line, \
525 const char *format, ...))
526
527 #endif /* __GNUC__ < 2 || defined(VMS) */
528
529 #else /* ! USE_STDARG */
530
531 #define PRINTF_LIKE(FCN) void FCN ()
532 #define PRINTF_WHERE_LIKE(FCN) void FCN ()
533
534 #endif /* ! USE_STDARG */
535
536 PRINTF_LIKE (as_bad);
537 PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
538 PRINTF_LIKE (as_tsktsk);
539 PRINTF_LIKE (as_warn);
540 PRINTF_WHERE_LIKE (as_bad_where);
541 PRINTF_WHERE_LIKE (as_warn_where);
542
543 void as_assert PARAMS ((const char *, int, const char *));
544 void as_abort PARAMS ((const char *, int, const char *)) ATTRIBUTE_NORETURN;
545
546 void fprint_value PARAMS ((FILE *file, addressT value));
547 void sprint_value PARAMS ((char *buf, addressT value));
548
549 int had_errors PARAMS ((void));
550 int had_warnings PARAMS ((void));
551
552 void print_version_id PARAMS ((void));
553 char *app_push PARAMS ((void));
554 char *atof_ieee PARAMS ((char *str, int what_kind, LITTLENUM_TYPE * words));
555 char *input_scrub_include_file PARAMS ((char *filename, char *position));
556 extern void input_scrub_insert_line PARAMS((const char *line));
557 extern void input_scrub_insert_file PARAMS((char *path));
558 char *input_scrub_new_file PARAMS ((char *filename));
559 char *input_scrub_next_buffer PARAMS ((char **bufp));
560 int do_scrub_chars PARAMS ((int (*get) (char *, int), char *to, int tolen));
561 int gen_to_words PARAMS ((LITTLENUM_TYPE * words, int precision,
562 long exponent_bits));
563 int had_err PARAMS ((void));
564 int ignore_input PARAMS ((void));
565 void cond_finish_check PARAMS ((int));
566 void cond_exit_macro PARAMS ((int));
567 int seen_at_least_1_file PARAMS ((void));
568 void app_pop PARAMS ((char *arg));
569 void as_howmuch PARAMS ((FILE * stream));
570 void as_perror PARAMS ((const char *gripe, const char *filename));
571 void as_where PARAMS ((char **namep, unsigned int *linep));
572 void bump_line_counters PARAMS ((void));
573 void do_scrub_begin PARAMS ((int));
574 void input_scrub_begin PARAMS ((void));
575 void input_scrub_close PARAMS ((void));
576 void input_scrub_end PARAMS ((void));
577 int new_logical_line PARAMS ((char *fname, int line_number));
578 void subsegs_begin PARAMS ((void));
579 void subseg_change PARAMS ((segT seg, int subseg));
580 segT subseg_new PARAMS ((const char *name, subsegT subseg));
581 segT subseg_force_new PARAMS ((const char *name, subsegT subseg));
582 void subseg_set PARAMS ((segT seg, subsegT subseg));
583 #ifdef BFD_ASSEMBLER
584 segT subseg_get PARAMS ((const char *, int));
585 #endif
586 int subseg_text_p PARAMS ((segT));
587
588 void start_dependencies PARAMS ((char *));
589 void register_dependency PARAMS ((char *));
590 void print_dependencies PARAMS ((void));
591
592 struct expressionS;
593 struct fix;
594 typedef struct symbol symbolS;
595 struct relax_type;
596 typedef struct frag fragS;
597
598 #ifdef BFD_ASSEMBLER
599 /* literal.c */
600 valueT add_to_literal_pool PARAMS ((symbolS *, valueT, segT, int));
601 #endif
602
603 int check_eh_frame PARAMS ((struct expressionS *, unsigned int *));
604 int eh_frame_estimate_size_before_relax PARAMS ((fragS *));
605 int eh_frame_relax_frag PARAMS ((fragS *));
606 void eh_frame_convert_frag PARAMS ((fragS *));
607
608 #include "expr.h" /* Before targ-*.h */
609
610 /* this one starts the chain of target dependant headers */
611 #include "targ-env.h"
612
613 #include "write.h"
614 #include "frags.h"
615 #include "hash.h"
616 #include "read.h"
617 #include "symbols.h"
618
619 #include "tc.h"
620 #include "obj.h"
621
622 #ifdef USE_EMULATIONS
623 #include "emul.h"
624 #endif
625 #include "listing.h"
626
627 #ifdef TC_M68K
628 /* True if we are assembling in m68k MRI mode. */
629 COMMON int flag_m68k_mri;
630 #else
631 #define flag_m68k_mri 0
632 #endif
633
634 #ifdef WARN_COMMENTS
635 COMMON int warn_comment;
636 COMMON unsigned int found_comment;
637 COMMON char *found_comment_file;
638 #endif
639
640 #ifndef NUMBERS_WITH_SUFFIX
641 #define NUMBERS_WITH_SUFFIX 0
642 #endif
643
644 #ifndef LOCAL_LABELS_DOLLAR
645 #define LOCAL_LABELS_DOLLAR 0
646 #endif
647
648 #ifndef LOCAL_LABELS_FB
649 #define LOCAL_LABELS_FB 0
650 #endif
651
652 #ifndef LABELS_WITHOUT_COLONS
653 #define LABELS_WITHOUT_COLONS 0
654 #endif
655
656 #ifndef NO_PSEUDO_DOT
657 #define NO_PSEUDO_DOT 0
658 #endif
659
660 #ifndef TEXT_SECTION_NAME
661 #define TEXT_SECTION_NAME ".text"
662 #define DATA_SECTION_NAME ".data"
663 #define BSS_SECTION_NAME ".bss"
664 #endif
665
666 #ifndef OCTETS_PER_BYTE_POWER
667 #define OCTETS_PER_BYTE_POWER 0
668 #endif
669 #ifndef OCTETS_PER_BYTE
670 #define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
671 #endif
672 #if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
673 #error "Octets per byte conflicts with its power-of-two definition!"
674 #endif
675
676 #endif /* GAS */