1 /* read.c - read a source file -
2 Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
3 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
4 Free Software Foundation, Inc.
6 This file is part of GAS, the GNU Assembler.
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)
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.
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, 51 Franklin Street - Fifth Floor, Boston, MA
23 /* If your chars aren't 8 bits, you will change this a bit (eg. to 0xFF).
24 But then, GNU isn't spozed to run on your machine anyway.
25 (RMS is so shortsighted sometimes.) */
26 #define MASK_CHAR ((int)(unsigned char) -1)
28 /* This is the largest known floating point format (for now). It will
29 grow when we do 4361 style flonums. */
30 #define MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT (16)
32 /* Routines that read assembler source text to build spaghetti in memory.
33 Another group of these functions is in the expr.c module. */
36 #include "safe-ctype.h"
43 #include "dw2gencfi.h"
45 #ifndef TC_START_LABEL
46 #define TC_START_LABEL(x,y) (x == ':')
49 /* Set by the object-format or the target. */
50 #ifndef TC_IMPLICIT_LCOMM_ALIGNMENT
51 #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) \
56 else if ((SIZE) >= 4) \
58 else if ((SIZE) >= 2) \
66 char *input_line_pointer; /*->next char of source file to parse. */
68 #if BITS_PER_CHAR != 8
69 /* The following table is indexed by[(char)] and will break if
70 a char does not have exactly 256 states (hopefully 0:255!)! */
79 /* The RS/6000 assembler uses {,},[,] as parts of symbol names. */
84 /* The Delta 68k assembler permits % inside label names. */
89 /* The PowerPC Windows NT assemblers permits ? inside label names. */
94 /* The IA-64 assembler uses # as a suffix designating a symbol. We include
95 it in the symbol and strip it out in tc_canonicalize_symbol_name. */
104 /* The Delta 68k assembler permits ~ at start of label names. */
108 /* Used by is_... macros. our ctype[]. */
109 char lex_type[256] = {
110 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */
111 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */
112 0, 0, 0, LEX_HASH, LEX_DOLLAR, LEX_PCT, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
113 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, LEX_QM, /* 0123456789:;<=>? */
114 LEX_AT, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */
115 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, 0, 3, /* PQRSTUVWXYZ[\]^_ */
116 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */
117 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, LEX_TILDE, 0, /* pqrstuvwxyz{|}~. */
118 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
119 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
120 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
121 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
122 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
123 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
124 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
125 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
129 Out: 1 if this character ends a line. */
130 char is_end_of_line[256] = {
132 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, /* @abcdefghijklmno */
134 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, /* @abcdefghijklmno */
136 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
137 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* _!"#$%&'()*+,-./ */
138 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */
139 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
140 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
141 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
142 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
143 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
144 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
145 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
147 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
148 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
149 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
150 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* */
153 #ifndef TC_CASE_SENSITIVE
154 char original_case_string[128];
157 /* Functions private to this file. */
159 static char *buffer; /* 1st char of each buffer of lines is here. */
160 static char *buffer_limit; /*->1 + last char in buffer. */
162 /* TARGET_BYTES_BIG_ENDIAN is required to be defined to either 0 or 1
163 in the tc-<CPU>.h file. See the "Porting GAS" section of the
165 int target_big_endian = TARGET_BYTES_BIG_ENDIAN;
167 /* Variables for handling include file directory table. */
169 /* Table of pointers to directories to search for .include's. */
172 /* How many are in the table. */
173 int include_dir_count;
175 /* Length of longest in table. */
176 int include_dir_maxlen = 1;
178 #ifndef WORKING_DOT_WORD
179 struct broken_word *broken_words;
180 int new_broken_words;
183 /* The current offset into the absolute section. We don't try to
184 build frags in the absolute section, since no data can be stored
185 there. We just keep track of the current offset. */
186 addressT abs_section_offset;
188 /* If this line had an MRI style label, it is stored in this variable.
189 This is used by some of the MRI pseudo-ops. */
192 /* This global variable is used to support MRI common sections. We
193 translate such sections into a common symbol. This variable is
194 non-NULL when we are in an MRI common section. */
195 symbolS *mri_common_symbol;
197 /* In MRI mode, after a dc.b pseudo-op with an odd number of bytes, we
198 need to align to an even byte boundary unless the next pseudo-op is
199 dc.b, ds.b, or dcb.b. This variable is set to 1 if an alignment
201 static int mri_pending_align;
205 /* This variable is set to be non-zero if the next string we see might
206 be the name of the source file in DWARF debugging information. See
207 the comment in emit_expr for the format we look for. */
208 static int dwarf_file_string;
212 static void do_s_func (int end_p, const char *default_prefix);
213 static void do_align (int, char *, int, int);
214 static void s_align (int, int);
215 static void s_altmacro (int);
216 static void s_bad_end (int);
217 static int hex_float (int, char *);
218 static segT get_known_segmented_expression (expressionS * expP);
219 static void pobegin (void);
220 static int get_line_sb (sb *);
221 static void generate_file_debug (void);
222 static char *_find_end_of_line (char *, int, int);
230 obj_read_begin_hook ();
232 /* Something close -- but not too close -- to a multiple of 1024.
233 The debugging malloc I'm using has 24 bytes of overhead. */
234 obstack_begin (¬es, chunksize);
235 obstack_begin (&cond_obstack, chunksize);
237 /* Use machine dependent syntax. */
238 for (p = line_separator_chars; *p; p++)
239 is_end_of_line[(unsigned char) *p] = 1;
240 /* Use more. FIXME-SOMEDAY. */
246 #ifndef TC_ADDRESS_BYTES
247 #define TC_ADDRESS_BYTES address_bytes
252 /* Choose smallest of 1, 2, 4, 8 bytes that is large enough to
253 contain an address. */
254 int n = (stdoutput->arch_info->bits_per_address - 1) / 8;
262 /* Set up pseudo-op tables. */
264 static struct hash_control *po_hash;
266 static const pseudo_typeS potable[] = {
267 {"abort", s_abort, 0},
268 {"align", s_align_ptwo, 0},
269 {"altmacro", s_altmacro, 1},
270 {"ascii", stringer, 0},
271 {"asciz", stringer, 1},
272 {"balign", s_align_bytes, 0},
273 {"balignw", s_align_bytes, -2},
274 {"balignl", s_align_bytes, -4},
278 {"common", s_mri_common, 0},
279 {"common.s", s_mri_common, 1},
282 #ifdef TC_ADDRESS_BYTES
286 {"dc.d", float_cons, 'd'},
288 {"dc.s", float_cons, 'f'},
290 {"dc.x", float_cons, 'x'},
292 {"dcb.b", s_space, 1},
293 {"dcb.d", s_float_space, 'd'},
294 {"dcb.l", s_space, 4},
295 {"dcb.s", s_float_space, 'f'},
296 {"dcb.w", s_space, 2},
297 {"dcb.x", s_float_space, 'x'},
299 {"ds.b", s_space, 1},
300 {"ds.d", s_space, 8},
301 {"ds.l", s_space, 4},
302 {"ds.p", s_space, 12},
303 {"ds.s", s_space, 4},
304 {"ds.w", s_space, 2},
305 {"ds.x", s_space, 12},
306 {"debug", s_ignore, 0},
311 {"double", float_cons, 'd'},
313 {"eject", listing_eject, 0}, /* Formfeed listing. */
315 {"elsec", s_else, 0},
316 {"elseif", s_elseif, (int) O_ne},
318 {"endc", s_endif, 0},
319 {"endfunc", s_func, 1},
320 {"endif", s_endif, 0},
321 {"endm", s_bad_end, 0},
322 {"endr", s_bad_end, 1},
328 {"error", s_errwarn, 1},
329 {"exitm", s_mexit, 0},
331 {"extern", s_ignore, 0}, /* We treat all undef as ext. */
332 {"appfile", s_app_file, 1},
333 {"appline", s_app_line, 0},
335 {"file", s_app_file, 0},
337 {"float", float_cons, 'f'},
338 {"format", s_ignore, 0},
340 {"global", s_globl, 0},
341 {"globl", s_globl, 0},
343 {"if", s_if, (int) O_ne},
346 {"ifdef", s_ifdef, 0},
347 {"ifeq", s_if, (int) O_eq},
348 {"ifeqs", s_ifeqs, 0},
349 {"ifge", s_if, (int) O_ge},
350 {"ifgt", s_if, (int) O_gt},
351 {"ifle", s_if, (int) O_le},
352 {"iflt", s_if, (int) O_lt},
355 {"ifndef", s_ifdef, 1},
356 {"ifne", s_if, (int) O_ne},
357 {"ifnes", s_ifeqs, 1},
358 {"ifnotdef", s_ifdef, 1},
359 {"incbin", s_incbin, 0},
360 {"include", s_include, 0},
366 {"lcomm", s_lcomm, 0},
367 {"lflags", listing_flags, 0}, /* Listing flags. */
368 {"linkonce", s_linkonce, 0},
369 {"list", listing_list, 1}, /* Turn listing on. */
370 {"llen", listing_psize, 1},
373 {"macro", s_macro, 0},
374 {"mexit", s_mexit, 0},
376 {".mri", s_mri, 0}, /* Special case so .mri works in MRI mode. */
377 {"name", s_ignore, 0},
378 {"noaltmacro", s_altmacro, 0},
379 {"noformat", s_ignore, 0},
380 {"nolist", listing_list, 0}, /* Turn listing off. */
381 {"nopage", listing_nopage, 0},
383 {"offset", s_struct, 0},
385 {"p2align", s_align_ptwo, 0},
386 {"p2alignw", s_align_ptwo, -2},
387 {"p2alignl", s_align_ptwo, -4},
388 {"page", listing_eject, 0},
389 {"plen", listing_psize, 0},
390 {"print", s_print, 0},
391 {"psize", listing_psize, 0}, /* Set paper size. */
392 {"purgem", s_purgem, 0},
397 {"sbttl", listing_title, 1}, /* Subtitle of listing. */
402 {"single", float_cons, 'f'},
404 {"space", s_space, 0},
405 {"skip", s_space, 0},
406 {"sleb128", s_leb128, 1},
407 {"spc", s_ignore, 0},
408 {"stabd", s_stab, 'd'},
409 {"stabn", s_stab, 'n'},
410 {"stabs", s_stab, 's'},
411 {"string", stringer, 1},
412 {"struct", s_struct, 0},
416 /* This is for gcc to use. It's only just been added (2/94), so gcc
417 won't be able to use it for a while -- probably a year or more.
418 But once this has been released, check with gcc maintainers
419 before deleting it or even changing the spelling. */
420 {"this_GCC_requires_the_GNU_assembler", s_ignore, 0},
421 /* If we're folding case -- done for some targets, not necessarily
422 all -- the above string in an input file will be converted to
423 this one. Match it either way... */
424 {"this_gcc_requires_the_gnu_assembler", s_ignore, 0},
426 {"title", listing_title, 0}, /* Listing title. */
427 {"ttl", listing_title, 0},
429 {"uleb128", s_leb128, 0},
433 {"xdef", s_globl, 0},
434 {"xref", s_ignore, 0},
435 {"xstabs", s_xstab, 's'},
436 {"warning", s_errwarn, 0},
438 {"zero", s_space, 0},
439 {NULL, NULL, 0} /* End sentinel. */
443 get_absolute_expr (expressionS *exp)
445 expression_and_evaluate (exp);
446 if (exp->X_op != O_constant)
448 if (exp->X_op != O_absent)
449 as_bad (_("bad or irreducible absolute expression"));
450 exp->X_add_number = 0;
452 return exp->X_add_number;
456 get_absolute_expression (void)
460 return get_absolute_expr (&exp);
463 static int pop_override_ok = 0;
464 static const char *pop_table_name;
467 pop_insert (const pseudo_typeS *table)
470 const pseudo_typeS *pop;
471 for (pop = table; pop->poc_name; pop++)
473 errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop);
474 if (errtxt && (!pop_override_ok || strcmp (errtxt, "exists")))
475 as_fatal (_("error constructing %s pseudo-op table: %s"), pop_table_name,
480 #ifndef md_pop_insert
481 #define md_pop_insert() pop_insert(md_pseudo_table)
484 #ifndef obj_pop_insert
485 #define obj_pop_insert() pop_insert(obj_pseudo_table)
488 #ifndef cfi_pop_insert
489 #define cfi_pop_insert() pop_insert(cfi_pseudo_table)
495 po_hash = hash_new ();
497 /* Do the target-specific pseudo ops. */
498 pop_table_name = "md";
501 /* Now object specific. Skip any that were in the target table. */
502 pop_table_name = "obj";
506 /* Now portable ones. Skip any that we've seen already. */
507 pop_table_name = "standard";
508 pop_insert (potable);
510 #ifdef TARGET_USE_CFIPOP
511 pop_table_name = "cfi";
517 #define HANDLE_CONDITIONAL_ASSEMBLY() \
518 if (ignore_input ()) \
520 char *eol = find_end_of_line (input_line_pointer, flag_m68k_mri); \
521 input_line_pointer = (input_line_pointer <= buffer_limit \
522 && eol >= buffer_limit) \
528 /* This function is used when scrubbing the characters between #APP
531 static char *scrub_string;
532 static char *scrub_string_end;
535 scrub_from_string (char *buf, int buflen)
539 copy = scrub_string_end - scrub_string;
542 memcpy (buf, scrub_string, copy);
543 scrub_string += copy;
547 /* Helper function of read_a_source_file, which tries to expand a macro. */
549 try_macro (char term, const char *line)
555 if (check_macro (line, &out, &err, ¯o))
559 *input_line_pointer++ = term;
560 input_scrub_include_sb (&out,
561 input_line_pointer, 1);
564 input_scrub_next_buffer (&input_line_pointer);
566 md_macro_info (macro);
573 /* We read the file, putting things into a web that represents what we
574 have been reading. */
576 read_a_source_file (char *name)
579 register char *s; /* String of symbol, '\0' appended. */
587 buffer = input_scrub_new_file (name);
590 listing_newline (NULL);
591 register_dependency (name);
593 /* Generate debugging information before we've read anything in to denote
594 this file as the "main" source file and not a subordinate one
595 (e.g. N_SO vs N_SOL in stabs). */
596 generate_file_debug ();
598 while ((buffer_limit = input_scrub_next_buffer (&input_line_pointer)) != 0)
599 { /* We have another line to parse. */
601 /* In order to avoid listing macro expansion lines with labels
602 multiple times, keep track of which line was last issued. */
603 static char *last_eol;
607 know (buffer_limit[-1] == '\n'); /* Must have a sentinel. */
609 while (input_line_pointer < buffer_limit)
611 /* We have more of this buffer to parse. */
613 /* We now have input_line_pointer->1st char of next line.
614 If input_line_pointer [-1] == '\n' then we just
615 scanned another line: so bump line counters. */
616 if (is_end_of_line[(unsigned char) input_line_pointer[-1]])
618 #ifdef md_start_line_hook
619 md_start_line_hook ();
621 if (input_line_pointer[-1] == '\n')
622 bump_line_counters ();
626 if (LABELS_WITHOUT_COLONS || flag_m68k_mri)
628 /* Text at the start of a line must be a label, we
629 run down and stick a colon in. */
630 if (is_name_beginner (*input_line_pointer))
632 char *line_start = input_line_pointer;
637 HANDLE_CONDITIONAL_ASSEMBLY ();
639 c = get_symbol_end ();
641 /* In MRI mode, the EQU and MACRO pseudoops must
642 be handled specially. */
646 char *rest = input_line_pointer + 1;
650 if (*rest == ' ' || *rest == '\t')
652 if ((strncasecmp (rest, "EQU", 3) == 0
653 || strncasecmp (rest, "SET", 3) == 0)
654 && (rest[3] == ' ' || rest[3] == '\t'))
656 input_line_pointer = rest + 3;
658 strncasecmp (rest, "SET", 3) == 0);
661 if (strncasecmp (rest, "MACRO", 5) == 0
664 || is_end_of_line[(unsigned char) rest[5]]))
668 /* In MRI mode, we need to handle the MACRO
669 pseudo-op specially: we don't want to put the
670 symbol in the symbol table. */
672 #ifdef TC_START_LABEL_WITHOUT_COLON
673 && TC_START_LABEL_WITHOUT_COLON(c,
677 line_label = colon (line_start);
679 line_label = symbol_create (line_start,
684 *input_line_pointer = c;
686 input_line_pointer++;
691 /* We are at the beginning of a line, or similar place.
692 We expect a well-formed assembler statement.
693 A "symbol-name:" is a statement.
695 Depending on what compiler is used, the order of these tests
696 may vary to catch most common case 1st.
697 Each test is independent of all other tests at the (top) level.
698 PLEASE make a compiler that doesn't use this assembler.
699 It is crufty to waste a compiler's time encoding things for this
700 assembler, which then wastes more time decoding it.
701 (And communicating via (linear) files is silly!
702 If you must pass stuff, please pass a tree!) */
703 if ((c = *input_line_pointer++) == '\t'
707 c = *input_line_pointer++;
709 know (c != ' '); /* No further leading whitespace. */
712 /* If listing is on, and we are expanding a macro, then give
713 the listing code the contents of the expanded line. */
716 if ((listing & LISTING_MACEXP) && macro_nest > 0)
721 /* Find the end of the current expanded macro line. */
722 s = find_end_of_line (input_line_pointer - 1, flag_m68k_mri);
727 /* Copy it for safe keeping. Also give an indication of
728 how much macro nesting is involved at this point. */
729 len = s - (input_line_pointer - 1);
730 copy = (char *) xmalloc (len + macro_nest + 2);
731 memset (copy, '>', macro_nest);
732 copy[macro_nest] = ' ';
733 memcpy (copy + macro_nest + 1, input_line_pointer - 1, len);
734 copy[macro_nest + 1 + len] = '\0';
736 /* Install the line with the listing facility. */
737 listing_newline (copy);
741 listing_newline (NULL);
744 /* C is the 1st significant character.
745 Input_line_pointer points after that character. */
746 if (is_name_beginner (c))
748 /* Want user-defined label or pseudo/opcode. */
749 HANDLE_CONDITIONAL_ASSEMBLY ();
751 s = --input_line_pointer;
752 c = get_symbol_end (); /* name's delimiter. */
754 /* C is character after symbol.
755 That character's place in the input line is now '\0'.
756 S points to the beginning of the symbol.
757 [In case of pseudo-op, s->'.'.]
758 Input_line_pointer->'\0' where c was. */
759 if (TC_START_LABEL (c, input_line_pointer))
763 char *rest = input_line_pointer + 1;
765 /* In MRI mode, \tsym: set 0 is permitted. */
769 if (*rest == ' ' || *rest == '\t')
772 if ((strncasecmp (rest, "EQU", 3) == 0
773 || strncasecmp (rest, "SET", 3) == 0)
774 && (rest[3] == ' ' || rest[3] == '\t'))
776 input_line_pointer = rest + 3;
782 line_label = colon (s); /* User-defined label. */
783 /* Put ':' back for error messages' sake. */
784 *input_line_pointer++ = ':';
785 #ifdef tc_check_label
786 tc_check_label (line_label);
788 /* Input_line_pointer->after ':'. */
791 else if (input_line_pointer[1] == '='
793 || ((c == ' ' || c == '\t')
794 && input_line_pointer[2] == '=')))
797 demand_empty_rest_of_line ();
800 || ((c == ' ' || c == '\t')
801 && input_line_pointer[1] == '='))
802 #ifdef TC_EQUAL_IN_INSN
803 && !TC_EQUAL_IN_INSN (c, s)
808 demand_empty_rest_of_line ();
812 /* Expect pseudo-op or machine instruction. */
815 #ifndef TC_CASE_SENSITIVE
819 strncpy (original_case_string, s2, sizeof (original_case_string));
820 original_case_string[sizeof (original_case_string) - 1] = 0;
829 if (NO_PSEUDO_DOT || flag_m68k_mri)
831 /* The MRI assembler uses pseudo-ops without
833 pop = (pseudo_typeS *) hash_find (po_hash, s);
834 if (pop != NULL && pop->poc_handler == NULL)
839 || (!flag_m68k_mri && *s == '.'))
843 WARNING: c has next char, which may be end-of-line.
844 We lookup the pseudo-op table with s+1 because we
845 already know that the pseudo-op begins with a '.'. */
848 pop = (pseudo_typeS *) hash_find (po_hash, s + 1);
849 if (pop && !pop->poc_handler)
852 /* In MRI mode, we may need to insert an
853 automatic alignment directive. What a hack
855 if (mri_pending_align
857 || !((pop->poc_handler == cons
858 && pop->poc_val == 1)
859 || (pop->poc_handler == s_space
860 && pop->poc_val == 1)
861 #ifdef tc_conditional_pseudoop
862 || tc_conditional_pseudoop (pop)
864 || pop->poc_handler == s_if
865 || pop->poc_handler == s_ifdef
866 || pop->poc_handler == s_ifc
867 || pop->poc_handler == s_ifeqs
868 || pop->poc_handler == s_else
869 || pop->poc_handler == s_endif
870 || pop->poc_handler == s_globl
871 || pop->poc_handler == s_ignore)))
873 do_align (1, (char *) NULL, 0, 0);
874 mri_pending_align = 0;
876 if (line_label != NULL)
878 symbol_set_frag (line_label, frag_now);
879 S_SET_VALUE (line_label, frag_now_fix ());
883 /* Print the error msg now, while we still can. */
886 char *end = input_line_pointer;
888 *input_line_pointer = c;
890 c = *--input_line_pointer;
891 *input_line_pointer = '\0';
892 if (! macro_defined || ! try_macro (c, s))
895 as_bad (_("unknown pseudo-op: `%s'"), s);
896 *input_line_pointer++ = c;
901 /* Put it back for error messages etc. */
902 *input_line_pointer = c;
903 /* The following skip of whitespace is compulsory.
904 A well shaped space is sometimes all that separates
905 keyword from operands. */
906 if (c == ' ' || c == '\t')
907 input_line_pointer++;
909 /* Input_line is restored.
910 Input_line_pointer->1st non-blank char
911 after pseudo-operation. */
912 (*pop->poc_handler) (pop->poc_val);
914 /* If that was .end, just get out now. */
915 if (pop->poc_handler == s_end)
920 /* WARNING: c has char, which may be end-of-line. */
921 /* Also: input_line_pointer->`\0` where c was. */
922 *input_line_pointer = c;
923 input_line_pointer = _find_end_of_line (input_line_pointer, flag_m68k_mri, 1);
924 c = *input_line_pointer;
925 *input_line_pointer = '\0';
927 generate_lineno_debug ();
929 if (macro_defined && try_macro (c, s))
932 if (mri_pending_align)
934 do_align (1, (char *) NULL, 0, 0);
935 mri_pending_align = 0;
936 if (line_label != NULL)
938 symbol_set_frag (line_label, frag_now);
939 S_SET_VALUE (line_label, frag_now_fix ());
943 md_assemble (s); /* Assemble 1 instruction. */
945 *input_line_pointer++ = c;
947 /* We resume loop AFTER the end-of-line from
954 /* Empty statement? */
955 if (is_end_of_line[(unsigned char) c])
958 if ((LOCAL_LABELS_DOLLAR || LOCAL_LABELS_FB) && ISDIGIT (c))
960 /* local label ("4:") */
961 char *backup = input_line_pointer;
963 HANDLE_CONDITIONAL_ASSEMBLY ();
967 /* Read the whole number. */
968 while (ISDIGIT (*input_line_pointer))
970 temp = (temp * 10) + *input_line_pointer - '0';
971 ++input_line_pointer;
974 if (LOCAL_LABELS_DOLLAR
975 && *input_line_pointer == '$'
976 && *(input_line_pointer + 1) == ':')
978 input_line_pointer += 2;
980 if (dollar_label_defined (temp))
982 as_fatal (_("label \"%d$\" redefined"), temp);
985 define_dollar_label (temp);
986 colon (dollar_label_name (temp, 0));
991 && *input_line_pointer++ == ':')
993 fb_label_instance_inc (temp);
994 colon (fb_label_name (temp, 0));
998 input_line_pointer = backup;
999 } /* local label ("4:") */
1001 if (c && strchr (line_comment_chars, c))
1002 { /* Its a comment. Better say APP or NO_APP. */
1007 unsigned int new_length;
1010 bump_line_counters ();
1011 s = input_line_pointer;
1012 if (strncmp (s, "APP\n", 4))
1013 continue; /* We ignore it */
1017 ends = strstr (s, "#NO_APP\n");
1021 unsigned int tmp_len;
1024 /* The end of the #APP wasn't in this buffer. We
1025 keep reading in buffers until we find the #NO_APP
1026 that goes with this #APP There is one. The specs
1028 tmp_len = buffer_limit - s;
1029 tmp_buf = xmalloc (tmp_len + 1);
1030 memcpy (tmp_buf, s, tmp_len);
1033 new_tmp = input_scrub_next_buffer (&buffer);
1037 buffer_limit = new_tmp;
1038 input_line_pointer = buffer;
1039 ends = strstr (buffer, "#NO_APP\n");
1041 num = ends - buffer;
1043 num = buffer_limit - buffer;
1045 tmp_buf = xrealloc (tmp_buf, tmp_len + num);
1046 memcpy (tmp_buf + tmp_len, buffer, num);
1051 input_line_pointer = ends ? ends + 8 : NULL;
1059 input_line_pointer = ends + 8;
1063 scrub_string_end = ends;
1065 new_length = ends - s;
1066 new_buf = (char *) xmalloc (new_length);
1073 space = (new_buf + new_length) - new_tmp;
1074 size = do_scrub_chars (scrub_from_string, new_tmp, space);
1082 new_buf = xrealloc (new_buf, new_length + 100);
1083 new_tmp = new_buf + new_length;
1090 /* We've "scrubbed" input to the preferred format. In the
1091 process we may have consumed the whole of the remaining
1092 file (and included files). We handle this formatted
1093 input similar to that of macro expansion, letting
1094 actual macro expansion (possibly nested) and other
1095 input expansion work. Beware that in messages, line
1096 numbers and possibly file names will be incorrect. */
1097 sb_add_string (&sbuf, new_buf);
1098 input_scrub_include_sb (&sbuf, input_line_pointer, 0);
1100 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
1105 HANDLE_CONDITIONAL_ASSEMBLY ();
1107 #ifdef tc_unrecognized_line
1108 if (tc_unrecognized_line (c))
1111 input_line_pointer--;
1112 /* Report unknown char as ignored. */
1113 demand_empty_rest_of_line ();
1116 #ifdef md_after_pass_hook
1117 md_after_pass_hook ();
1126 /* Close the input file. */
1127 input_scrub_close ();
1128 #ifdef WARN_COMMENTS
1130 if (warn_comment && found_comment)
1131 as_warn_where (found_comment_file, found_comment,
1132 "first comment found here");
1137 /* Convert O_constant expression EXP into the equivalent O_big representation.
1138 Take the sign of the number from X_unsigned rather than X_add_number. */
1141 convert_to_bignum (expressionS *exp)
1146 value = exp->X_add_number;
1147 for (i = 0; i < sizeof (exp->X_add_number) / CHARS_PER_LITTLENUM; i++)
1149 generic_bignum[i] = value & LITTLENUM_MASK;
1150 value >>= LITTLENUM_NUMBER_OF_BITS;
1152 /* Add a sequence of sign bits if the top bit of X_add_number is not
1153 the sign of the original value. */
1154 if ((exp->X_add_number < 0) != !exp->X_unsigned)
1155 generic_bignum[i++] = exp->X_unsigned ? 0 : LITTLENUM_MASK;
1157 exp->X_add_number = i;
1160 /* For most MRI pseudo-ops, the line actually ends at the first
1161 nonquoted space. This function looks for that point, stuffs a null
1162 in, and sets *STOPCP to the character that used to be there, and
1163 returns the location.
1165 Until I hear otherwise, I am going to assume that this is only true
1166 for the m68k MRI assembler. */
1169 mri_comment_field (char *stopcp)
1175 know (flag_m68k_mri);
1177 for (s = input_line_pointer;
1178 ((!is_end_of_line[(unsigned char) *s] && *s != ' ' && *s != '\t')
1186 for (s = input_line_pointer;
1187 !is_end_of_line[(unsigned char) *s];
1197 /* Skip to the end of an MRI comment field. */
1200 mri_comment_end (char *stop, int stopc)
1204 input_line_pointer = stop;
1206 while (!is_end_of_line[(unsigned char) *input_line_pointer])
1207 ++input_line_pointer;
1211 s_abort (int ignore ATTRIBUTE_UNUSED)
1213 as_fatal (_(".abort detected. Abandoning ship."));
1216 /* Guts of .align directive. N is the power of two to which to align.
1217 FILL may be NULL, or it may point to the bytes of the fill pattern.
1218 LEN is the length of whatever FILL points to, if anything. MAX is
1219 the maximum number of characters to skip when doing the alignment,
1220 or 0 if there is no maximum. */
1223 do_align (int n, char *fill, int len, int max)
1225 if (now_seg == absolute_section)
1229 if (*fill++ != '\0')
1231 as_warn (_("ignoring fill value in absolute section"));
1238 #ifdef md_flush_pending_output
1239 md_flush_pending_output ();
1242 md_do_align (n, fill, len, max, just_record_alignment);
1245 /* Only make a frag if we HAVE to... */
1246 if (n != 0 && !need_pass_2)
1250 if (subseg_text_p (now_seg))
1251 frag_align_code (n, max);
1253 frag_align (n, 0, max);
1256 frag_align (n, *fill, max);
1258 frag_align_pattern (n, fill, len, max);
1262 just_record_alignment: ATTRIBUTE_UNUSED_LABEL
1265 record_alignment (now_seg, n - OCTETS_PER_BYTE_POWER);
1268 /* Handle the .align pseudo-op. A positive ARG is a default alignment
1269 (in bytes). A negative ARG is the negative of the length of the
1270 fill pattern. BYTES_P is non-zero if the alignment value should be
1271 interpreted as the byte boundary, rather than the power of 2. */
1273 #define ALIGN_LIMIT (stdoutput->arch_info->bits_per_address - 1)
1276 s_align (int arg, int bytes_p)
1278 unsigned int align_limit = ALIGN_LIMIT;
1287 stop = mri_comment_field (&stopc);
1289 if (is_end_of_line[(unsigned char) *input_line_pointer])
1294 align = arg; /* Default value from pseudo-op table. */
1298 align = get_absolute_expression ();
1304 /* Convert to a power of 2. */
1309 for (i = 0; (align & 1) == 0; align >>= 1, ++i)
1312 as_bad (_("alignment not a power of 2"));
1318 if (align > align_limit)
1320 align = align_limit;
1321 as_warn (_("alignment too large: %u assumed"), align);
1324 if (*input_line_pointer != ',')
1331 ++input_line_pointer;
1332 if (*input_line_pointer == ',')
1336 fill = get_absolute_expression ();
1341 if (*input_line_pointer != ',')
1345 ++input_line_pointer;
1346 max = get_absolute_expression ();
1353 as_warn (_("expected fill pattern missing"));
1354 do_align (align, (char *) NULL, 0, max);
1369 do_align (align, &fill_char, fill_len, max);
1375 if ((size_t) fill_len > sizeof ab)
1377 md_number_to_chars (ab, fill, fill_len);
1378 do_align (align, ab, fill_len, max);
1382 demand_empty_rest_of_line ();
1385 mri_comment_end (stop, stopc);
1388 /* Handle the .align pseudo-op on machines where ".align 4" means
1389 align to a 4 byte boundary. */
1392 s_align_bytes (int arg)
1397 /* Handle the .align pseudo-op on machines where ".align 4" means align
1398 to a 2**4 boundary. */
1401 s_align_ptwo (int arg)
1406 /* Switch in and out of alternate macro mode. */
1411 demand_empty_rest_of_line ();
1412 macro_set_alternate (on);
1416 s_comm_internal (int param,
1417 symbolS *(*comm_parse_extra) (int, symbolS *, addressT))
1423 symbolS *symbolP = NULL;
1429 stop = mri_comment_field (&stopc);
1431 name = input_line_pointer;
1432 c = get_symbol_end ();
1433 /* Just after name is now '\0'. */
1434 p = input_line_pointer;
1439 as_bad (_("expected symbol name"));
1440 ignore_rest_of_line ();
1446 /* Accept an optional comma after the name. The comma used to be
1447 required, but Irix 5 cc does not generate it for .lcomm. */
1448 if (*input_line_pointer == ',')
1449 input_line_pointer++;
1451 temp = get_absolute_expr (&exp);
1453 size &= ((offsetT) 2 << (stdoutput->arch_info->bits_per_address - 1)) - 1;
1454 if (exp.X_op == O_absent)
1456 as_bad (_("missing size expression"));
1457 ignore_rest_of_line ();
1460 else if (temp != size || !exp.X_unsigned)
1462 as_warn (_("size (%ld) out of range, ignored"), (long) temp);
1463 ignore_rest_of_line ();
1468 symbolP = symbol_find_or_make (name);
1469 if (S_IS_DEFINED (symbolP) && !S_IS_COMMON (symbolP))
1472 as_bad (_("symbol `%s' is already defined"), name);
1474 ignore_rest_of_line ();
1478 size = S_GET_VALUE (symbolP);
1481 else if (size != temp)
1482 as_warn (_("size of \"%s\" is already %ld; not changing to %ld"),
1483 name, (long) size, (long) temp);
1486 if (comm_parse_extra != NULL)
1487 symbolP = (*comm_parse_extra) (param, symbolP, size);
1490 S_SET_VALUE (symbolP, (valueT) size);
1491 S_SET_EXTERNAL (symbolP);
1494 extern int flag_one;
1495 if (size == 0 || !flag_one)
1496 S_GET_OTHER (symbolP) = const_flag;
1501 demand_empty_rest_of_line ();
1504 mri_comment_end (stop, stopc);
1511 s_comm_internal (ignore, NULL);
1514 /* The MRI COMMON pseudo-op. We handle this by creating a common
1515 symbol with the appropriate name. We make s_space do the right
1516 thing by increasing the size. */
1519 s_mri_common (int small ATTRIBUTE_UNUSED)
1535 stop = mri_comment_field (&stopc);
1539 name = input_line_pointer;
1540 if (!ISDIGIT (*name))
1541 c = get_symbol_end ();
1546 ++input_line_pointer;
1548 while (ISDIGIT (*input_line_pointer));
1550 c = *input_line_pointer;
1551 *input_line_pointer = '\0';
1553 if (line_label != NULL)
1555 alc = (char *) xmalloc (strlen (S_GET_NAME (line_label))
1556 + (input_line_pointer - name)
1558 sprintf (alc, "%s%s", name, S_GET_NAME (line_label));
1563 sym = symbol_find_or_make (name);
1564 *input_line_pointer = c;
1568 if (*input_line_pointer != ',')
1572 ++input_line_pointer;
1573 align = get_absolute_expression ();
1576 if (S_IS_DEFINED (sym) && !S_IS_COMMON (sym))
1578 as_bad (_("symbol `%s' is already defined"), S_GET_NAME (sym));
1579 ignore_rest_of_line ();
1580 mri_comment_end (stop, stopc);
1584 S_SET_EXTERNAL (sym);
1585 mri_common_symbol = sym;
1589 S_SET_ALIGN (sym, align);
1592 if (line_label != NULL)
1595 exp.X_op = O_symbol;
1596 exp.X_add_symbol = sym;
1597 exp.X_add_number = 0;
1598 symbol_set_value_expression (line_label, &exp);
1599 symbol_set_frag (line_label, &zero_address_frag);
1600 S_SET_SEGMENT (line_label, expr_section);
1603 /* FIXME: We just ignore the small argument, which distinguishes
1604 COMMON and COMMON.S. I don't know what we can do about it. */
1606 /* Ignore the type and hptype. */
1607 if (*input_line_pointer == ',')
1608 input_line_pointer += 2;
1609 if (*input_line_pointer == ',')
1610 input_line_pointer += 2;
1612 demand_empty_rest_of_line ();
1614 mri_comment_end (stop, stopc);
1618 s_data (int ignore ATTRIBUTE_UNUSED)
1623 temp = get_absolute_expression ();
1624 if (flag_readonly_data_in_text)
1626 section = text_section;
1630 section = data_section;
1632 subseg_set (section, (subsegT) temp);
1637 demand_empty_rest_of_line ();
1640 /* Handle the .appfile pseudo-op. This is automatically generated by
1641 do_scrub_chars when a preprocessor # line comment is seen with a
1642 file name. This default definition may be overridden by the object
1643 or CPU specific pseudo-ops. This function is also the default
1644 definition for .file; the APPFILE argument is 1 for .appfile, 0 for
1648 s_app_file_string (char *file, int appfile ATTRIBUTE_UNUSED)
1652 listing_source_file (file);
1654 register_dependency (file);
1656 obj_app_file (file, appfile);
1661 s_app_file (int appfile)
1666 /* Some assemblers tolerate immediately following '"'. */
1667 if ((s = demand_copy_string (&length)) != 0)
1669 /* If this is a fake .appfile, a fake newline was inserted into
1670 the buffer. Passing -2 to new_logical_line tells it to
1673 = (!new_logical_line (s, appfile ? -2 : -1) && appfile);
1675 /* In MRI mode, the preprocessor may have inserted an extraneous
1678 && *input_line_pointer == '\''
1679 && is_end_of_line[(unsigned char) input_line_pointer[1]])
1680 ++input_line_pointer;
1682 demand_empty_rest_of_line ();
1684 s_app_file_string (s, appfile);
1688 /* Handle the .appline pseudo-op. This is automatically generated by
1689 do_scrub_chars when a preprocessor # line comment is seen. This
1690 default definition may be overridden by the object or CPU specific
1694 s_app_line (int ignore ATTRIBUTE_UNUSED)
1698 /* The given number is that of the next line. */
1699 l = get_absolute_expression () - 1;
1702 /* Some of the back ends can't deal with non-positive line numbers.
1703 Besides, it's silly. GCC however will generate a line number of
1704 zero when it is pre-processing builtins for assembler-with-cpp files:
1708 We do not want to barf on this, especially since such files are used
1709 in the GCC and GDB testsuites. So we check for negative line numbers
1710 rather than non-positive line numbers. */
1711 as_warn (_("line numbers must be positive; line number %d rejected"),
1715 new_logical_line ((char *) NULL, l);
1718 listing_source_line (l);
1721 demand_empty_rest_of_line ();
1724 /* Handle the .end pseudo-op. Actually, the real work is done in
1725 read_a_source_file. */
1728 s_end (int ignore ATTRIBUTE_UNUSED)
1732 /* The MRI assembler permits the start symbol to follow .end,
1733 but we don't support that. */
1735 if (!is_end_of_line[(unsigned char) *input_line_pointer]
1736 && *input_line_pointer != '*'
1737 && *input_line_pointer != '!')
1738 as_warn (_("start address not supported"));
1742 /* Handle the .err pseudo-op. */
1745 s_err (int ignore ATTRIBUTE_UNUSED)
1747 as_bad (_(".err encountered"));
1748 demand_empty_rest_of_line ();
1751 /* Handle the .error and .warning pseudo-ops. */
1757 /* The purpose for the conditional assignment is not to
1758 internationalize the directive itself, but that we need a
1759 self-contained message, one that can be passed like the
1760 demand_copy_C_string return value, and with no assumption on the
1761 location of the name of the directive within the message. */
1763 = (err ? _(".error directive invoked in source file")
1764 : _(".warning directive invoked in source file"));
1766 if (!is_it_end_of_statement ())
1768 if (*input_line_pointer != '\"')
1770 as_bad (_("%s argument must be a string"),
1771 err ? ".error" : ".warning");
1772 ignore_rest_of_line ();
1776 msg = demand_copy_C_string (&len);
1784 as_warn ("%s", msg);
1785 demand_empty_rest_of_line ();
1788 /* Handle the MRI fail pseudo-op. */
1791 s_fail (int ignore ATTRIBUTE_UNUSED)
1798 stop = mri_comment_field (&stopc);
1800 temp = get_absolute_expression ();
1802 as_warn (_(".fail %ld encountered"), (long) temp);
1804 as_bad (_(".fail %ld encountered"), (long) temp);
1806 demand_empty_rest_of_line ();
1809 mri_comment_end (stop, stopc);
1813 s_fill (int ignore ATTRIBUTE_UNUSED)
1815 expressionS rep_exp;
1817 register long fill = 0;
1820 #ifdef md_flush_pending_output
1821 md_flush_pending_output ();
1824 get_known_segmented_expression (&rep_exp);
1825 if (*input_line_pointer == ',')
1827 input_line_pointer++;
1828 size = get_absolute_expression ();
1829 if (*input_line_pointer == ',')
1831 input_line_pointer++;
1832 fill = get_absolute_expression ();
1836 /* This is to be compatible with BSD 4.2 AS, not for any rational reason. */
1837 #define BSD_FILL_SIZE_CROCK_8 (8)
1838 if (size > BSD_FILL_SIZE_CROCK_8)
1840 as_warn (_(".fill size clamped to %d"), BSD_FILL_SIZE_CROCK_8);
1841 size = BSD_FILL_SIZE_CROCK_8;
1845 as_warn (_("size negative; .fill ignored"));
1848 else if (rep_exp.X_op == O_constant && rep_exp.X_add_number <= 0)
1850 if (rep_exp.X_add_number < 0)
1851 as_warn (_("repeat < 0; .fill ignored"));
1855 if (size && !need_pass_2)
1857 if (rep_exp.X_op == O_constant)
1859 p = frag_var (rs_fill, (int) size, (int) size,
1860 (relax_substateT) 0, (symbolS *) 0,
1861 (offsetT) rep_exp.X_add_number,
1866 /* We don't have a constant repeat count, so we can't use
1867 rs_fill. We can get the same results out of rs_space,
1868 but its argument is in bytes, so we must multiply the
1869 repeat count by size. */
1872 rep_sym = make_expr_symbol (&rep_exp);
1875 expressionS size_exp;
1876 size_exp.X_op = O_constant;
1877 size_exp.X_add_number = size;
1879 rep_exp.X_op = O_multiply;
1880 rep_exp.X_add_symbol = rep_sym;
1881 rep_exp.X_op_symbol = make_expr_symbol (&size_exp);
1882 rep_exp.X_add_number = 0;
1883 rep_sym = make_expr_symbol (&rep_exp);
1886 p = frag_var (rs_space, (int) size, (int) size,
1887 (relax_substateT) 0, rep_sym, (offsetT) 0, (char *) 0);
1890 memset (p, 0, (unsigned int) size);
1892 /* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX
1893 flavoured AS. The following bizarre behaviour is to be
1894 compatible with above. I guess they tried to take up to 8
1895 bytes from a 4-byte expression and they forgot to sign
1897 #define BSD_FILL_SIZE_CROCK_4 (4)
1898 md_number_to_chars (p, (valueT) fill,
1899 (size > BSD_FILL_SIZE_CROCK_4
1900 ? BSD_FILL_SIZE_CROCK_4
1902 /* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes)
1903 but emits no error message because it seems a legal thing to do.
1904 It is a degenerate case of .fill but could be emitted by a
1907 demand_empty_rest_of_line ();
1911 s_globl (int ignore ATTRIBUTE_UNUSED)
1920 stop = mri_comment_field (&stopc);
1924 name = input_line_pointer;
1925 c = get_symbol_end ();
1926 symbolP = symbol_find_or_make (name);
1927 S_SET_EXTERNAL (symbolP);
1929 *input_line_pointer = c;
1931 c = *input_line_pointer;
1934 input_line_pointer++;
1936 if (is_end_of_line[(unsigned char) *input_line_pointer])
1942 demand_empty_rest_of_line ();
1945 mri_comment_end (stop, stopc);
1948 /* Handle the MRI IRP and IRPC pseudo-ops. */
1959 as_where (&file, &line);
1962 eol = find_end_of_line (input_line_pointer, 0);
1963 sb_add_buffer (&s, input_line_pointer, eol - input_line_pointer);
1964 input_line_pointer = eol;
1968 err = expand_irp (irpc, 0, &s, &out, get_line_sb);
1970 as_bad_where (file, line, "%s", err);
1974 input_scrub_include_sb (&out, input_line_pointer, 1);
1976 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
1979 /* Handle the .linkonce pseudo-op. This tells the assembler to mark
1980 the section to only be linked once. However, this is not supported
1981 by most object file formats. This takes an optional argument,
1982 which is what to do about duplicates. */
1985 s_linkonce (int ignore ATTRIBUTE_UNUSED)
1987 enum linkonce_type type;
1991 type = LINKONCE_DISCARD;
1993 if (!is_end_of_line[(unsigned char) *input_line_pointer])
1998 s = input_line_pointer;
1999 c = get_symbol_end ();
2000 if (strcasecmp (s, "discard") == 0)
2001 type = LINKONCE_DISCARD;
2002 else if (strcasecmp (s, "one_only") == 0)
2003 type = LINKONCE_ONE_ONLY;
2004 else if (strcasecmp (s, "same_size") == 0)
2005 type = LINKONCE_SAME_SIZE;
2006 else if (strcasecmp (s, "same_contents") == 0)
2007 type = LINKONCE_SAME_CONTENTS;
2009 as_warn (_("unrecognized .linkonce type `%s'"), s);
2011 *input_line_pointer = c;
2014 #ifdef obj_handle_link_once
2015 obj_handle_link_once (type);
2016 #else /* ! defined (obj_handle_link_once) */
2020 if ((bfd_applicable_section_flags (stdoutput) & SEC_LINK_ONCE) == 0)
2021 as_warn (_(".linkonce is not supported for this object file format"));
2023 flags = bfd_get_section_flags (stdoutput, now_seg);
2024 flags |= SEC_LINK_ONCE;
2029 case LINKONCE_DISCARD:
2030 flags |= SEC_LINK_DUPLICATES_DISCARD;
2032 case LINKONCE_ONE_ONLY:
2033 flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
2035 case LINKONCE_SAME_SIZE:
2036 flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
2038 case LINKONCE_SAME_CONTENTS:
2039 flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
2042 if (!bfd_set_section_flags (stdoutput, now_seg, flags))
2043 as_bad (_("bfd_set_section_flags: %s"),
2044 bfd_errmsg (bfd_get_error ()));
2046 #endif /* ! defined (obj_handle_link_once) */
2048 demand_empty_rest_of_line ();
2052 bss_alloc (symbolS *symbolP, addressT size, int align)
2055 segT current_seg = now_seg;
2056 subsegT current_subseg = now_subseg;
2057 segT bss_seg = bss_section;
2059 #if defined (TC_MIPS) || defined (TC_ALPHA)
2060 if (OUTPUT_FLAVOR == bfd_target_ecoff_flavour
2061 || OUTPUT_FLAVOR == bfd_target_elf_flavour)
2063 /* For MIPS and Alpha ECOFF or ELF, small objects are put in .sbss. */
2064 if (size <= bfd_get_gp_size (stdoutput))
2066 bss_seg = subseg_new (".sbss", 1);
2067 seg_info (bss_seg)->bss = 1;
2068 if (!bfd_set_section_flags (stdoutput, bss_seg, SEC_ALLOC))
2069 as_warn (_("error setting flags for \".sbss\": %s"),
2070 bfd_errmsg (bfd_get_error ()));
2074 subseg_set (bss_seg, 1);
2078 record_alignment (bss_seg, align);
2079 frag_align (align, 0, 0);
2082 /* Detach from old frag. */
2083 if (S_GET_SEGMENT (symbolP) == bss_seg)
2084 symbol_get_frag (symbolP)->fr_symbol = NULL;
2086 symbol_set_frag (symbolP, frag_now);
2087 pfrag = frag_var (rs_org, 1, 1, 0, symbolP, size, NULL);
2091 S_SET_SIZE (symbolP, size);
2093 S_SET_SEGMENT (symbolP, bss_seg);
2096 /* The symbol may already have been created with a preceding
2097 ".globl" directive -- be careful not to step on storage class
2098 in that case. Otherwise, set it to static. */
2099 if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
2100 S_SET_STORAGE_CLASS (symbolP, C_STAT);
2101 #endif /* OBJ_COFF */
2103 subseg_set (current_seg, current_subseg);
2107 parse_align (int align_bytes)
2113 if (*input_line_pointer != ',')
2116 as_bad (_("expected alignment after size"));
2117 ignore_rest_of_line ();
2121 input_line_pointer++;
2124 align = get_absolute_expr (&exp);
2125 if (exp.X_op == O_absent)
2128 if (!exp.X_unsigned)
2130 as_warn (_("alignment negative; 0 assumed"));
2134 if (align_bytes && align != 0)
2136 /* convert to a power of 2 alignment */
2137 unsigned int alignp2 = 0;
2138 while ((align & 1) == 0)
2139 align >>= 1, ++alignp2;
2142 as_bad (_("alignment not a power of 2"));
2143 ignore_rest_of_line ();
2151 /* Called from s_comm_internal after symbol name and size have been
2152 parsed. NEEDS_ALIGN is 0 if it was an ".lcomm" (2 args only),
2153 1 if this was a ".bss" directive which has a 3rd argument
2154 (alignment as a power of 2), or 2 if this was a ".bss" directive
2155 with alignment in bytes. */
2158 s_lcomm_internal (int needs_align, symbolS *symbolP, addressT size)
2164 align = parse_align (needs_align - 1);
2165 if (align == (addressT) -1)
2169 /* Assume some objects may require alignment on some systems. */
2170 TC_IMPLICIT_LCOMM_ALIGNMENT (size, align);
2172 bss_alloc (symbolP, size, align);
2177 s_lcomm (int needs_align)
2179 s_comm_internal (needs_align, s_lcomm_internal);
2183 s_lcomm_bytes (int needs_align)
2185 s_comm_internal (needs_align * 2, s_lcomm_internal);
2189 s_lsym (int ignore ATTRIBUTE_UNUSED)
2191 register char *name;
2195 register symbolS *symbolP;
2197 /* We permit ANY defined expression: BSD4.2 demands constants. */
2198 name = input_line_pointer;
2199 c = get_symbol_end ();
2200 p = input_line_pointer;
2205 as_bad (_("expected symbol name"));
2206 ignore_rest_of_line ();
2212 if (*input_line_pointer != ',')
2215 as_bad (_("expected comma after \"%s\""), name);
2217 ignore_rest_of_line ();
2221 input_line_pointer++;
2222 expression_and_evaluate (&exp);
2224 if (exp.X_op != O_constant
2225 && exp.X_op != O_register)
2227 as_bad (_("bad expression"));
2228 ignore_rest_of_line ();
2233 symbolP = symbol_find_or_make (name);
2235 /* FIXME-SOON I pulled a (&& symbolP->sy_other == 0 &&
2236 symbolP->sy_desc == 0) out of this test because coff doesn't have
2237 those fields, and I can't see when they'd ever be tripped. I
2238 don't think I understand why they were here so I may have
2239 introduced a bug. As recently as 1.37 didn't have this test
2240 anyway. xoxorich. */
2242 if (S_GET_SEGMENT (symbolP) == undefined_section
2243 && S_GET_VALUE (symbolP) == 0)
2245 /* The name might be an undefined .global symbol; be sure to
2246 keep the "external" bit. */
2247 S_SET_SEGMENT (symbolP,
2248 (exp.X_op == O_constant
2251 S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
2255 as_bad (_("symbol `%s' is already defined"), name);
2259 demand_empty_rest_of_line ();
2262 /* Read a line into an sb. Returns the character that ended the line
2263 or zero if there are no more lines. */
2266 get_line_sb (sb *line)
2270 if (input_line_pointer[-1] == '\n')
2271 bump_line_counters ();
2273 if (input_line_pointer >= buffer_limit)
2275 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
2276 if (buffer_limit == 0)
2280 eol = find_end_of_line (input_line_pointer, flag_m68k_mri);
2281 sb_add_buffer (line, input_line_pointer, eol - input_line_pointer);
2282 input_line_pointer = eol;
2284 /* Don't skip multiple end-of-line characters, because that breaks support
2285 for the IA-64 stop bit (;;) which looks like two consecutive end-of-line
2286 characters but isn't. Instead just skip one end of line character and
2287 return the character skipped so that the caller can re-insert it if
2289 return *input_line_pointer++;
2292 /* Define a macro. This is an interface to macro.c. */
2295 s_macro (int ignore ATTRIBUTE_UNUSED)
2303 as_where (&file, &line);
2306 eol = find_end_of_line (input_line_pointer, 0);
2307 sb_add_buffer (&s, input_line_pointer, eol - input_line_pointer);
2308 input_line_pointer = eol;
2310 if (line_label != NULL)
2315 sb_add_string (&label, S_GET_NAME (line_label));
2316 err = define_macro (0, &s, &label, get_line_sb, file, line, &name);
2320 err = define_macro (0, &s, NULL, get_line_sb, file, line, &name);
2322 as_bad_where (file, line, err, name);
2325 if (line_label != NULL)
2327 S_SET_SEGMENT (line_label, absolute_section);
2328 S_SET_VALUE (line_label, 0);
2329 symbol_set_frag (line_label, &zero_address_frag);
2332 if (((NO_PSEUDO_DOT || flag_m68k_mri)
2333 && hash_find (po_hash, name) != NULL)
2336 && hash_find (po_hash, name + 1) != NULL))
2337 as_warn_where (file,
2339 _("attempt to redefine pseudo-op `%s' ignored"),
2346 /* Handle the .mexit pseudo-op, which immediately exits a macro
2350 s_mexit (int ignore ATTRIBUTE_UNUSED)
2352 cond_exit_macro (macro_nest);
2353 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
2356 /* Switch in and out of MRI mode. */
2359 s_mri (int ignore ATTRIBUTE_UNUSED)
2363 on = get_absolute_expression ();
2364 old_flag = flag_mri;
2382 /* Operator precedence changes in m68k MRI mode, so we need to
2383 update the operator rankings. */
2384 expr_set_precedence ();
2386 #ifdef MRI_MODE_CHANGE
2388 MRI_MODE_CHANGE (on);
2391 demand_empty_rest_of_line ();
2394 /* Handle changing the location counter. */
2397 do_org (segT segment, expressionS *exp, int fill)
2399 if (segment != now_seg && segment != absolute_section)
2400 as_bad (_("invalid segment \"%s\""), segment_name (segment));
2402 if (now_seg == absolute_section)
2405 as_warn (_("ignoring fill value in absolute section"));
2406 if (exp->X_op != O_constant)
2408 as_bad (_("only constant offsets supported in absolute section"));
2409 exp->X_add_number = 0;
2411 abs_section_offset = exp->X_add_number;
2416 symbolS *sym = exp->X_add_symbol;
2417 offsetT off = exp->X_add_number * OCTETS_PER_BYTE;
2419 if (exp->X_op != O_constant && exp->X_op != O_symbol)
2421 /* Handle complex expressions. */
2422 sym = make_expr_symbol (exp);
2426 p = frag_var (rs_org, 1, 1, (relax_substateT) 0, sym, off, (char *) 0);
2432 s_org (int ignore ATTRIBUTE_UNUSED)
2434 register segT segment;
2436 register long temp_fill;
2438 #ifdef md_flush_pending_output
2439 md_flush_pending_output ();
2442 /* The m68k MRI assembler has a different meaning for .org. It
2443 means to create an absolute section at a given address. We can't
2444 support that--use a linker script instead. */
2447 as_bad (_("MRI style ORG pseudo-op not supported"));
2448 ignore_rest_of_line ();
2452 /* Don't believe the documentation of BSD 4.2 AS. There is no such
2453 thing as a sub-segment-relative origin. Any absolute origin is
2454 given a warning, then assumed to be segment-relative. Any
2455 segmented origin expression ("foo+42") had better be in the right
2456 segment or the .org is ignored.
2458 BSD 4.2 AS warns if you try to .org backwards. We cannot because
2459 we never know sub-segment sizes when we are reading code. BSD
2460 will crash trying to emit negative numbers of filler bytes in
2461 certain .orgs. We don't crash, but see as-write for that code.
2463 Don't make frag if need_pass_2==1. */
2464 segment = get_known_segmented_expression (&exp);
2465 if (*input_line_pointer == ',')
2467 input_line_pointer++;
2468 temp_fill = get_absolute_expression ();
2474 do_org (segment, &exp, temp_fill);
2476 demand_empty_rest_of_line ();
2479 /* Handle parsing for the MRI SECT/SECTION pseudo-op. This should be
2480 called by the obj-format routine which handles section changing
2481 when in MRI mode. It will create a new section, and return it. It
2482 will set *TYPE to the section type: one of 'C' (code), 'D' (data),
2483 'M' (mixed), or 'R' (romable). The flags will be set in the section. */
2486 s_mri_sect (char *type ATTRIBUTE_UNUSED)
2496 name = input_line_pointer;
2497 if (!ISDIGIT (*name))
2498 c = get_symbol_end ();
2503 ++input_line_pointer;
2505 while (ISDIGIT (*input_line_pointer));
2507 c = *input_line_pointer;
2508 *input_line_pointer = '\0';
2511 name = xstrdup (name);
2513 *input_line_pointer = c;
2515 seg = subseg_new (name, 0);
2517 if (*input_line_pointer == ',')
2521 ++input_line_pointer;
2522 align = get_absolute_expression ();
2523 record_alignment (seg, align);
2527 if (*input_line_pointer == ',')
2529 c = *++input_line_pointer;
2531 if (c == 'C' || c == 'D' || c == 'M' || c == 'R')
2534 as_bad (_("unrecognized section type"));
2535 ++input_line_pointer;
2540 flags = SEC_NO_FLAGS;
2542 flags = SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE;
2543 else if (*type == 'D' || *type == 'M')
2544 flags = SEC_ALLOC | SEC_LOAD | SEC_DATA;
2545 else if (*type == 'R')
2546 flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_READONLY | SEC_ROM;
2547 if (flags != SEC_NO_FLAGS)
2549 if (!bfd_set_section_flags (stdoutput, seg, flags))
2550 as_warn (_("error setting flags for \"%s\": %s"),
2551 bfd_section_name (stdoutput, seg),
2552 bfd_errmsg (bfd_get_error ()));
2557 /* Ignore the HP type. */
2558 if (*input_line_pointer == ',')
2559 input_line_pointer += 2;
2561 demand_empty_rest_of_line ();
2563 #else /* ! TC_M68K */
2572 name = input_line_pointer;
2573 c = get_symbol_end ();
2575 name = xstrdup (name);
2577 *input_line_pointer = c;
2579 seg = subseg_new (name, 0);
2581 if (*input_line_pointer != ',')
2587 ++input_line_pointer;
2589 sectype = input_line_pointer;
2590 c = get_symbol_end ();
2591 if (*sectype == '\0')
2593 else if (strcasecmp (sectype, "text") == 0)
2595 else if (strcasecmp (sectype, "data") == 0)
2597 else if (strcasecmp (sectype, "romdata") == 0)
2600 as_warn (_("unrecognized section type `%s'"), sectype);
2601 *input_line_pointer = c;
2604 if (*input_line_pointer == ',')
2608 ++input_line_pointer;
2610 seccmd = input_line_pointer;
2611 c = get_symbol_end ();
2612 if (strcasecmp (seccmd, "absolute") == 0)
2614 as_bad (_("absolute sections are not supported"));
2615 *input_line_pointer = c;
2616 ignore_rest_of_line ();
2619 else if (strcasecmp (seccmd, "align") == 0)
2623 *input_line_pointer = c;
2624 align = get_absolute_expression ();
2625 record_alignment (seg, align);
2629 as_warn (_("unrecognized section command `%s'"), seccmd);
2630 *input_line_pointer = c;
2634 demand_empty_rest_of_line ();
2636 #else /* ! TC_I960 */
2637 /* The MRI assembler seems to use different forms of .sect for
2638 different targets. */
2639 as_bad ("MRI mode not supported for this target");
2640 ignore_rest_of_line ();
2641 #endif /* ! TC_I960 */
2642 #endif /* ! TC_M68K */
2645 /* Handle the .print pseudo-op. */
2648 s_print (int ignore ATTRIBUTE_UNUSED)
2653 s = demand_copy_C_string (&len);
2656 demand_empty_rest_of_line ();
2659 /* Handle the .purgem pseudo-op. */
2662 s_purgem (int ignore ATTRIBUTE_UNUSED)
2664 if (is_it_end_of_statement ())
2666 demand_empty_rest_of_line ();
2676 name = input_line_pointer;
2677 c = get_symbol_end ();
2678 delete_macro (name);
2679 *input_line_pointer = c;
2682 while (*input_line_pointer++ == ',');
2684 --input_line_pointer;
2685 demand_empty_rest_of_line ();
2688 /* Handle the .endm/.endr pseudo-ops. */
2691 s_bad_end (int endr)
2693 as_warn (_(".end%c encountered without preceeding %s"),
2695 endr ? ".rept, .irp, or .irpc" : ".macro");
2696 demand_empty_rest_of_line ();
2699 /* Handle the .rept pseudo-op. */
2702 s_rept (int ignore ATTRIBUTE_UNUSED)
2706 count = get_absolute_expression ();
2708 do_repeat (count, "REPT", "ENDR");
2711 /* This function provides a generic repeat block implementation. It allows
2712 different directives to be used as the start/end keys. */
2715 do_repeat (int count, const char *start, const char *end)
2721 if (!buffer_and_nest (start, end, &one, get_line_sb))
2723 as_bad (_("%s without %s"), start, end);
2729 sb_add_sb (&many, &one);
2733 input_scrub_include_sb (&many, input_line_pointer, 1);
2735 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
2738 /* Skip to end of current repeat loop; EXTRA indicates how many additional
2739 input buffers to skip. Assumes that conditionals preceding the loop end
2740 are properly nested.
2742 This function makes it easier to implement a premature "break" out of the
2743 loop. The EXTRA arg accounts for other buffers we might have inserted,
2744 such as line substitutions. */
2747 end_repeat (int extra)
2749 cond_exit_macro (macro_nest);
2750 while (extra-- >= 0)
2751 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
2755 assign_symbol (char *name, int mode)
2759 if (name[0] == '.' && name[1] == '\0')
2761 /* Turn '. = mumble' into a .org mumble. */
2765 segment = get_known_segmented_expression (&exp);
2768 do_org (segment, &exp, 0);
2773 if ((symbolP = symbol_find (name)) == NULL
2774 && (symbolP = md_undefined_symbol (name)) == NULL)
2776 symbolP = symbol_find_or_make (name);
2778 /* When doing symbol listings, play games with dummy fragments living
2779 outside the normal fragment chain to record the file and line info
2781 if (listing & LISTING_SYMBOLS)
2783 extern struct list_info_struct *listing_tail;
2784 fragS *dummy_frag = (fragS *) xcalloc (1, sizeof (fragS));
2785 dummy_frag->line = listing_tail;
2786 dummy_frag->fr_symbol = symbolP;
2787 symbol_set_frag (symbolP, dummy_frag);
2791 /* "set" symbols are local unless otherwise specified. */
2792 SF_SET_LOCAL (symbolP);
2796 if (S_IS_DEFINED (symbolP))
2798 /* Permit register names to be redefined. */
2799 if ((mode != 0 || !S_IS_VOLATILE (symbolP))
2800 && S_GET_SEGMENT (symbolP) != reg_section)
2802 as_bad (_("symbol `%s' is already defined"), name);
2803 symbolP = symbol_clone (symbolP, 0);
2805 /* If the symbol is volatile, copy the symbol and replace the
2806 original with the copy, so that previous uses of the symbol will
2807 retain the value of the symbol at the point of use. */
2808 else if (S_IS_VOLATILE (symbolP)
2809 /* This could be avoided when the symbol wasn't used so far, but
2810 the comment in struc-symbol.h says this flag isn't reliable. */
2811 && (1 || symbol_used_p (symbolP)))
2812 symbolP = symbol_clone (symbolP, 1);
2816 S_SET_VOLATILE (symbolP);
2818 S_SET_FORWARD_REF (symbolP);
2820 pseudo_set (symbolP);
2823 /* Handle the .equ, .equiv, .eqv, and .set directives. If EQUIV is 1,
2824 then this is .equiv, and it is an error if the symbol is already
2825 defined. If EQUIV is -1, the symbol additionally is a forward
2835 /* Especial apologies for the random logic:
2836 this just grew, and could be parsed much more simply!
2838 name = input_line_pointer;
2839 delim = get_symbol_end ();
2840 end_name = input_line_pointer;
2843 if (name == end_name)
2845 as_bad (_("expected symbol name"));
2846 ignore_rest_of_line ();
2852 if (*input_line_pointer != ',')
2855 as_bad (_("expected comma after \"%s\""), name);
2857 ignore_rest_of_line ();
2861 input_line_pointer++;
2864 assign_symbol (name, equiv);
2867 demand_empty_rest_of_line ();
2880 #ifdef md_flush_pending_output
2881 md_flush_pending_output ();
2885 stop = mri_comment_field (&stopc);
2887 /* In m68k MRI mode, we need to align to a word boundary, unless
2889 if (flag_m68k_mri && mult > 1)
2891 if (now_seg == absolute_section)
2893 abs_section_offset += abs_section_offset & 1;
2894 if (line_label != NULL)
2895 S_SET_VALUE (line_label, abs_section_offset);
2897 else if (mri_common_symbol != NULL)
2901 val = S_GET_VALUE (mri_common_symbol);
2904 S_SET_VALUE (mri_common_symbol, val + 1);
2905 if (line_label != NULL)
2907 expressionS *symexp;
2909 symexp = symbol_get_value_expression (line_label);
2910 know (symexp->X_op == O_symbol);
2911 know (symexp->X_add_symbol == mri_common_symbol);
2912 symexp->X_add_number += 1;
2918 do_align (1, (char *) NULL, 0, 0);
2919 if (line_label != NULL)
2921 symbol_set_frag (line_label, frag_now);
2922 S_SET_VALUE (line_label, frag_now_fix ());
2932 if (*input_line_pointer == ',')
2934 ++input_line_pointer;
2939 val.X_op = O_constant;
2940 val.X_add_number = 0;
2943 if (val.X_op != O_constant
2944 || val.X_add_number < - 0x80
2945 || val.X_add_number > 0xff
2946 || (mult != 0 && mult != 1 && val.X_add_number != 0))
2948 resolve_expression (&exp);
2949 if (exp.X_op != O_constant)
2950 as_bad (_("unsupported variable size or fill value"));
2957 bytes = mult * exp.X_add_number;
2958 for (i = 0; i < exp.X_add_number; i++)
2959 emit_expr (&val, mult);
2964 if (now_seg == absolute_section || mri_common_symbol != NULL)
2965 resolve_expression (&exp);
2967 if (exp.X_op == O_constant)
2971 repeat = exp.X_add_number;
2978 as_warn (_(".space repeat count is zero, ignored"));
2979 else if (repeat < 0)
2980 as_warn (_(".space repeat count is negative, ignored"));
2984 /* If we are in the absolute section, just bump the offset. */
2985 if (now_seg == absolute_section)
2987 abs_section_offset += repeat;
2991 /* If we are secretly in an MRI common section, then
2992 creating space just increases the size of the common
2994 if (mri_common_symbol != NULL)
2996 S_SET_VALUE (mri_common_symbol,
2997 S_GET_VALUE (mri_common_symbol) + repeat);
3002 p = frag_var (rs_fill, 1, 1, (relax_substateT) 0, (symbolS *) 0,
3003 (offsetT) repeat, (char *) 0);
3007 if (now_seg == absolute_section)
3009 as_bad (_("space allocation too complex in absolute section"));
3010 subseg_set (text_section, 0);
3013 if (mri_common_symbol != NULL)
3015 as_bad (_("space allocation too complex in common section"));
3016 mri_common_symbol = NULL;
3020 p = frag_var (rs_space, 1, 1, (relax_substateT) 0,
3021 make_expr_symbol (&exp), (offsetT) 0, (char *) 0);
3025 *p = val.X_add_number;
3030 /* In MRI mode, after an odd number of bytes, we must align to an
3031 even word boundary, unless the next instruction is a dc.b, ds.b
3033 if (flag_mri && (bytes & 1) != 0)
3034 mri_pending_align = 1;
3036 demand_empty_rest_of_line ();
3039 mri_comment_end (stop, stopc);
3042 /* This is like s_space, but the value is a floating point number with
3043 the given precision. This is for the MRI dcb.s pseudo-op and
3047 s_float_space (int float_type)
3051 char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
3056 stop = mri_comment_field (&stopc);
3058 count = get_absolute_expression ();
3061 if (*input_line_pointer != ',')
3063 as_bad (_("missing value"));
3064 ignore_rest_of_line ();
3066 mri_comment_end (stop, stopc);
3070 ++input_line_pointer;
3074 /* Skip any 0{letter} that may be present. Don't even check if the
3075 * letter is legal. */
3076 if (input_line_pointer[0] == '0'
3077 && ISALPHA (input_line_pointer[1]))
3078 input_line_pointer += 2;
3080 /* Accept :xxxx, where the x's are hex digits, for a floating point
3081 with the exact digits specified. */
3082 if (input_line_pointer[0] == ':')
3084 flen = hex_float (float_type, temp);
3087 ignore_rest_of_line ();
3089 mri_comment_end (stop, stopc);
3097 err = md_atof (float_type, temp, &flen);
3098 know (flen <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
3102 as_bad (_("bad floating literal: %s"), err);
3103 ignore_rest_of_line ();
3105 mri_comment_end (stop, stopc);
3110 while (--count >= 0)
3114 p = frag_more (flen);
3115 memcpy (p, temp, (unsigned int) flen);
3118 demand_empty_rest_of_line ();
3121 mri_comment_end (stop, stopc);
3124 /* Handle the .struct pseudo-op, as found in MIPS assemblers. */
3127 s_struct (int ignore ATTRIBUTE_UNUSED)
3133 stop = mri_comment_field (&stopc);
3134 abs_section_offset = get_absolute_expression ();
3135 subseg_set (absolute_section, 0);
3136 demand_empty_rest_of_line ();
3138 mri_comment_end (stop, stopc);
3142 s_text (int ignore ATTRIBUTE_UNUSED)
3146 temp = get_absolute_expression ();
3147 subseg_set (text_section, (subsegT) temp);
3148 demand_empty_rest_of_line ();
3150 const_flag &= ~IN_DEFAULT_SECTION;
3155 /* Verify that we are at the end of a line. If not, issue an error and
3159 demand_empty_rest_of_line (void)
3162 if (is_end_of_line[(unsigned char) *input_line_pointer])
3163 input_line_pointer++;
3166 if (ISPRINT (*input_line_pointer))
3167 as_bad (_("junk at end of line, first unrecognized character is `%c'"),
3168 *input_line_pointer);
3170 as_bad (_("junk at end of line, first unrecognized character valued 0x%x"),
3171 *input_line_pointer);
3172 ignore_rest_of_line ();
3175 /* Return pointing just after end-of-line. */
3176 know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
3179 /* Silently advance to the end of line. Use this after already having
3180 issued an error about something bad. */
3183 ignore_rest_of_line (void)
3185 while (input_line_pointer < buffer_limit
3186 && !is_end_of_line[(unsigned char) *input_line_pointer])
3187 input_line_pointer++;
3189 input_line_pointer++;
3191 /* Return pointing just after end-of-line. */
3192 know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
3195 /* Sets frag for given symbol to zero_address_frag, except when the
3196 symbol frag is already set to a dummy listing frag. */
3199 set_zero_frag (symbolS *symbolP)
3201 if (symbol_get_frag (symbolP)->fr_type != rs_dummy)
3202 symbol_set_frag (symbolP, &zero_address_frag);
3205 /* In: Pointer to a symbol.
3206 Input_line_pointer->expression.
3208 Out: Input_line_pointer->just after any whitespace after expression.
3209 Tried to set symbol to value of expression.
3210 Will change symbols type, value, and frag; */
3213 pseudo_set (symbolS *symbolP)
3218 know (symbolP); /* NULL pointer is logic error. */
3220 if (!S_IS_FORWARD_REF (symbolP))
3221 (void) expression (&exp);
3223 (void) deferred_expression (&exp);
3225 if (exp.X_op == O_illegal)
3226 as_bad (_("illegal expression"));
3227 else if (exp.X_op == O_absent)
3228 as_bad (_("missing expression"));
3229 else if (exp.X_op == O_big)
3231 if (exp.X_add_number > 0)
3232 as_bad (_("bignum invalid"));
3234 as_bad (_("floating point number invalid"));
3236 else if (exp.X_op == O_subtract
3237 && !S_IS_FORWARD_REF (symbolP)
3238 && SEG_NORMAL (S_GET_SEGMENT (exp.X_add_symbol))
3239 && (symbol_get_frag (exp.X_add_symbol)
3240 == symbol_get_frag (exp.X_op_symbol)))
3242 exp.X_op = O_constant;
3243 exp.X_add_number = (S_GET_VALUE (exp.X_add_symbol)
3244 - S_GET_VALUE (exp.X_op_symbol));
3247 if (symbol_section_p (symbolP))
3249 as_bad ("attempt to set value of section symbol");
3258 exp.X_add_number = 0;
3261 S_SET_SEGMENT (symbolP, absolute_section);
3262 S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
3263 set_zero_frag (symbolP);
3267 S_SET_SEGMENT (symbolP, reg_section);
3268 S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
3269 set_zero_frag (symbolP);
3273 seg = S_GET_SEGMENT (exp.X_add_symbol);
3274 /* For x=undef+const, create an expression symbol.
3275 For x=x+const, just update x except when x is an undefined symbol
3276 For x=defined+const, evaluate x. */
3277 if (symbolP == exp.X_add_symbol
3278 && (seg != undefined_section
3279 || !symbol_constant_p (symbolP)))
3281 *symbol_X_add_number (symbolP) += exp.X_add_number;
3284 else if (!S_IS_FORWARD_REF (symbolP) && seg != undefined_section)
3286 symbolS *s = exp.X_add_symbol;
3288 if (S_IS_COMMON (s))
3289 as_bad (_("`%s' can't be equated to common symbol '%s'"),
3290 S_GET_NAME (symbolP), S_GET_NAME (s));
3292 S_SET_SEGMENT (symbolP, seg);
3293 S_SET_VALUE (symbolP, exp.X_add_number + S_GET_VALUE (s));
3294 symbol_set_frag (symbolP, symbol_get_frag (s));
3295 copy_symbol_attributes (symbolP, s);
3298 S_SET_SEGMENT (symbolP, undefined_section);
3299 symbol_set_value_expression (symbolP, &exp);
3300 set_zero_frag (symbolP);
3304 /* The value is some complex expression. */
3305 S_SET_SEGMENT (symbolP, expr_section);
3306 symbol_set_value_expression (symbolP, &exp);
3307 set_zero_frag (symbolP);
3314 CONStruct more frag of .bytes, or .words etc.
3315 Should need_pass_2 be 1 then emit no frag(s).
3316 This understands EXPRESSIONS.
3320 This has a split personality. We use expression() to read the
3321 value. We can detect if the value won't fit in a byte or word.
3322 But we can't detect if expression() discarded significant digits
3323 in the case of a long. Not worth the crocks required to fix it. */
3325 /* Select a parser for cons expressions. */
3327 /* Some targets need to parse the expression in various fancy ways.
3328 You can define TC_PARSE_CONS_EXPRESSION to do whatever you like
3329 (for example, the HPPA does this). Otherwise, you can define
3330 BITFIELD_CONS_EXPRESSIONS to permit bitfields to be specified, or
3331 REPEAT_CONS_EXPRESSIONS to permit repeat counts. If none of these
3332 are defined, which is the normal case, then only simple expressions
3337 parse_mri_cons (expressionS *exp, unsigned int nbytes);
3340 #ifndef TC_PARSE_CONS_EXPRESSION
3341 #ifdef BITFIELD_CONS_EXPRESSIONS
3342 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_bitfield_cons (EXP, NBYTES)
3344 parse_bitfield_cons (expressionS *exp, unsigned int nbytes);
3346 #ifdef REPEAT_CONS_EXPRESSIONS
3347 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_repeat_cons (EXP, NBYTES)
3349 parse_repeat_cons (expressionS *exp, unsigned int nbytes);
3352 /* If we haven't gotten one yet, just call expression. */
3353 #ifndef TC_PARSE_CONS_EXPRESSION
3354 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) expression (EXP)
3359 do_parse_cons_expression (expressionS *exp,
3360 int nbytes ATTRIBUTE_UNUSED)
3362 TC_PARSE_CONS_EXPRESSION (exp, nbytes);
3366 /* Worker to do .byte etc statements.
3367 Clobbers input_line_pointer and checks end-of-line. */
3370 cons_worker (register int nbytes, /* 1=.byte, 2=.word, 4=.long. */
3378 #ifdef md_flush_pending_output
3379 md_flush_pending_output ();
3383 stop = mri_comment_field (&stopc);
3385 if (is_it_end_of_statement ())
3387 demand_empty_rest_of_line ();
3389 mri_comment_end (stop, stopc);
3393 #ifdef TC_ADDRESS_BYTES
3395 nbytes = TC_ADDRESS_BYTES ();
3398 #ifdef md_cons_align
3399 md_cons_align (nbytes);
3407 parse_mri_cons (&exp, (unsigned int) nbytes);
3410 TC_PARSE_CONS_EXPRESSION (&exp, (unsigned int) nbytes);
3414 if (exp.X_op == O_symbol)
3415 exp.X_op = O_symbol_rva;
3417 as_fatal (_("rva without symbol"));
3419 emit_expr (&exp, (unsigned int) nbytes);
3422 while (*input_line_pointer++ == ',');
3424 /* In MRI mode, after an odd number of bytes, we must align to an
3425 even word boundary, unless the next instruction is a dc.b, ds.b
3427 if (flag_mri && nbytes == 1 && (c & 1) != 0)
3428 mri_pending_align = 1;
3430 input_line_pointer--; /* Put terminator back into stream. */
3432 demand_empty_rest_of_line ();
3435 mri_comment_end (stop, stopc);
3441 cons_worker (size, 0);
3447 cons_worker (size, 1);
3450 /* Put the contents of expression EXP into the object file using
3451 NBYTES bytes. If need_pass_2 is 1, this does nothing. */
3454 emit_expr (expressionS *exp, unsigned int nbytes)
3458 valueT extra_digit = 0;
3460 /* Don't do anything if we are going to make another pass. */
3464 dot_value = frag_now_fix ();
3468 /* When gcc emits DWARF 1 debugging pseudo-ops, a line number will
3469 appear as a four byte positive constant in the .line section,
3470 followed by a 2 byte 0xffff. Look for that case here. */
3472 static int dwarf_line = -1;
3474 if (strcmp (segment_name (now_seg), ".line") != 0)
3476 else if (dwarf_line >= 0
3478 && exp->X_op == O_constant
3479 && (exp->X_add_number == -1 || exp->X_add_number == 0xffff))
3480 listing_source_line ((unsigned int) dwarf_line);
3481 else if (nbytes == 4
3482 && exp->X_op == O_constant
3483 && exp->X_add_number >= 0)
3484 dwarf_line = exp->X_add_number;
3489 /* When gcc emits DWARF 1 debugging pseudo-ops, a file name will
3490 appear as a 2 byte TAG_compile_unit (0x11) followed by a 2 byte
3491 AT_sibling (0x12) followed by a four byte address of the sibling
3492 followed by a 2 byte AT_name (0x38) followed by the name of the
3493 file. We look for that case here. */
3495 static int dwarf_file = 0;
3497 if (strcmp (segment_name (now_seg), ".debug") != 0)
3499 else if (dwarf_file == 0
3501 && exp->X_op == O_constant
3502 && exp->X_add_number == 0x11)
3504 else if (dwarf_file == 1
3506 && exp->X_op == O_constant
3507 && exp->X_add_number == 0x12)
3509 else if (dwarf_file == 2
3512 else if (dwarf_file == 3
3514 && exp->X_op == O_constant
3515 && exp->X_add_number == 0x38)
3520 /* The variable dwarf_file_string tells stringer that the string
3521 may be the name of the source file. */
3522 if (dwarf_file == 4)
3523 dwarf_file_string = 1;
3525 dwarf_file_string = 0;
3530 if (check_eh_frame (exp, &nbytes))
3535 /* Allow `.word 0' in the absolute section. */
3536 if (now_seg == absolute_section)
3538 if (op != O_constant || exp->X_add_number != 0)
3539 as_bad (_("attempt to store value in absolute section"));
3540 abs_section_offset += nbytes;
3544 /* Handle a negative bignum. */
3546 && exp->X_add_number == 0
3547 && symbol_get_value_expression (exp->X_add_symbol)->X_op == O_big
3548 && symbol_get_value_expression (exp->X_add_symbol)->X_add_number > 0)
3551 unsigned long carry;
3553 exp = symbol_get_value_expression (exp->X_add_symbol);
3555 /* Negate the bignum: one's complement each digit and add 1. */
3557 for (i = 0; i < exp->X_add_number; i++)
3561 next = (((~(generic_bignum[i] & LITTLENUM_MASK))
3564 generic_bignum[i] = next & LITTLENUM_MASK;
3565 carry = next >> LITTLENUM_NUMBER_OF_BITS;
3568 /* We can ignore any carry out, because it will be handled by
3569 extra_digit if it is needed. */
3571 extra_digit = (valueT) -1;
3575 if (op == O_absent || op == O_illegal)
3577 as_warn (_("zero assumed for missing expression"));
3578 exp->X_add_number = 0;
3581 else if (op == O_big && exp->X_add_number <= 0)
3583 as_bad (_("floating point number invalid"));
3584 exp->X_add_number = 0;
3587 else if (op == O_register)
3589 as_warn (_("register value used as expression"));
3593 p = frag_more ((int) nbytes);
3595 #ifndef WORKING_DOT_WORD
3596 /* If we have the difference of two symbols in a word, save it on
3597 the broken_words list. See the code in write.c. */
3598 if (op == O_subtract && nbytes == 2)
3600 struct broken_word *x;
3602 x = (struct broken_word *) xmalloc (sizeof (struct broken_word));
3603 x->next_broken_word = broken_words;
3606 x->subseg = now_subseg;
3608 x->word_goes_here = p;
3610 x->add = exp->X_add_symbol;
3611 x->sub = exp->X_op_symbol;
3612 x->addnum = exp->X_add_number;
3620 /* If we have an integer, but the number of bytes is too large to
3621 pass to md_number_to_chars, handle it as a bignum. */
3622 if (op == O_constant && nbytes > sizeof (valueT))
3624 extra_digit = exp->X_unsigned ? 0 : -1;
3625 convert_to_bignum (exp);
3629 if (op == O_constant)
3631 register valueT get;
3632 register valueT use;
3633 register valueT mask;
3635 register valueT unmask;
3637 /* JF << of >= number of bits in the object is undefined. In
3638 particular SPARC (Sun 4) has problems. */
3639 if (nbytes >= sizeof (valueT))
3642 if (nbytes > sizeof (valueT))
3645 hibit = (valueT) 1 << (nbytes * BITS_PER_CHAR - 1);
3649 /* Don't store these bits. */
3650 mask = ~(valueT) 0 << (BITS_PER_CHAR * nbytes);
3651 hibit = (valueT) 1 << (nbytes * BITS_PER_CHAR - 1);
3654 unmask = ~mask; /* Do store these bits. */
3657 "Do this mod if you want every overflow check to assume SIGNED 2's complement data.";
3658 mask = ~(unmask >> 1); /* Includes sign bit now. */
3661 get = exp->X_add_number;
3663 if ((get & mask) != 0
3664 && ((get & mask) != mask
3665 || (get & hibit) == 0))
3666 { /* Leading bits contain both 0s & 1s. */
3667 as_warn (_("value 0x%lx truncated to 0x%lx"),
3668 (unsigned long) get, (unsigned long) use);
3670 /* Put bytes in right order. */
3671 md_number_to_chars (p, use, (int) nbytes);
3673 else if (op == O_big)
3676 LITTLENUM_TYPE *nums;
3678 know (nbytes % CHARS_PER_LITTLENUM == 0);
3680 size = exp->X_add_number * CHARS_PER_LITTLENUM;
3683 as_warn (_("bignum truncated to %d bytes"), nbytes);
3687 if (target_big_endian)
3689 while (nbytes > size)
3691 md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM);
3692 nbytes -= CHARS_PER_LITTLENUM;
3693 p += CHARS_PER_LITTLENUM;
3696 nums = generic_bignum + size / CHARS_PER_LITTLENUM;
3697 while (size >= CHARS_PER_LITTLENUM)
3700 md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM);
3701 size -= CHARS_PER_LITTLENUM;
3702 p += CHARS_PER_LITTLENUM;
3707 nums = generic_bignum;
3708 while (size >= CHARS_PER_LITTLENUM)
3710 md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM);
3712 size -= CHARS_PER_LITTLENUM;
3713 p += CHARS_PER_LITTLENUM;
3714 nbytes -= CHARS_PER_LITTLENUM;
3717 while (nbytes >= CHARS_PER_LITTLENUM)
3719 md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM);
3720 nbytes -= CHARS_PER_LITTLENUM;
3721 p += CHARS_PER_LITTLENUM;
3727 memset (p, 0, nbytes);
3729 /* Now we need to generate a fixS to record the symbol value. */
3731 #ifdef TC_CONS_FIX_NEW
3732 TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp);
3735 bfd_reloc_code_real_type r;
3752 as_bad (_("unsupported BFD relocation size %u"), nbytes);
3756 fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp,
3763 #ifdef BITFIELD_CONS_EXPRESSIONS
3765 /* i960 assemblers, (eg, asm960), allow bitfields after ".byte" as
3766 w:x,y:z, where w and y are bitwidths and x and y are values. They
3767 then pack them all together. We do a little better in that we allow
3768 them in words, longs, etc. and we'll pack them in target byte order
3771 The rules are: pack least significant bit first, if a field doesn't
3772 entirely fit, put it in the next unit. Overflowing the bitfield is
3773 explicitly *not* even a warning. The bitwidth should be considered
3776 To use this function the tc-XXX.h file should define
3777 BITFIELD_CONS_EXPRESSIONS. */
3780 parse_bitfield_cons (exp, nbytes)
3782 unsigned int nbytes;
3784 unsigned int bits_available = BITS_PER_CHAR * nbytes;
3785 char *hold = input_line_pointer;
3787 (void) expression (exp);
3789 if (*input_line_pointer == ':')
3796 unsigned long width;
3798 if (*input_line_pointer != ':')
3800 input_line_pointer = hold;
3802 } /* Next piece is not a bitfield. */
3804 /* In the general case, we can't allow
3805 full expressions with symbol
3806 differences and such. The relocation
3807 entries for symbols not defined in this
3808 assembly would require arbitrary field
3809 widths, positions, and masks which most
3810 of our current object formats don't
3813 In the specific case where a symbol
3814 *is* defined in this assembly, we
3815 *could* build fixups and track it, but
3816 this could lead to confusion for the
3817 backends. I'm lazy. I'll take any
3818 SEG_ABSOLUTE. I think that means that
3819 you can use a previous .set or
3820 .equ type symbol. xoxorich. */
3822 if (exp->X_op == O_absent)
3824 as_warn (_("using a bit field width of zero"));
3825 exp->X_add_number = 0;
3826 exp->X_op = O_constant;
3827 } /* Implied zero width bitfield. */
3829 if (exp->X_op != O_constant)
3831 *input_line_pointer = '\0';
3832 as_bad (_("field width \"%s\" too complex for a bitfield"), hold);
3833 *input_line_pointer = ':';
3834 demand_empty_rest_of_line ();
3836 } /* Too complex. */
3838 if ((width = exp->X_add_number) > (BITS_PER_CHAR * nbytes))
3840 as_warn (_("field width %lu too big to fit in %d bytes: truncated to %d bits"),
3841 width, nbytes, (BITS_PER_CHAR * nbytes));
3842 width = BITS_PER_CHAR * nbytes;
3845 if (width > bits_available)
3847 /* FIXME-SOMEDAY: backing up and reparsing is wasteful. */
3848 input_line_pointer = hold;
3849 exp->X_add_number = value;
3854 hold = ++input_line_pointer;
3856 (void) expression (exp);
3857 if (exp->X_op != O_constant)
3859 char cache = *input_line_pointer;
3861 *input_line_pointer = '\0';
3862 as_bad (_("field value \"%s\" too complex for a bitfield"), hold);
3863 *input_line_pointer = cache;
3864 demand_empty_rest_of_line ();
3866 } /* Too complex. */
3868 value |= ((~(-1 << width) & exp->X_add_number)
3869 << ((BITS_PER_CHAR * nbytes) - bits_available));
3871 if ((bits_available -= width) == 0
3872 || is_it_end_of_statement ()
3873 || *input_line_pointer != ',')
3876 } /* All the bitfields we're gonna get. */
3878 hold = ++input_line_pointer;
3879 (void) expression (exp);
3882 exp->X_add_number = value;
3883 exp->X_op = O_constant;
3884 exp->X_unsigned = 1;
3888 #endif /* BITFIELD_CONS_EXPRESSIONS */
3890 /* Handle an MRI style string expression. */
3894 parse_mri_cons (exp, nbytes)
3896 unsigned int nbytes;
3898 if (*input_line_pointer != '\''
3899 && (input_line_pointer[1] != '\''
3900 || (*input_line_pointer != 'A'
3901 && *input_line_pointer != 'E')))
3902 TC_PARSE_CONS_EXPRESSION (exp, nbytes);
3906 unsigned int result = 0;
3908 /* An MRI style string. Cut into as many bytes as will fit into
3909 a nbyte chunk, left justify if necessary, and separate with
3910 commas so we can try again later. */
3911 if (*input_line_pointer == 'A')
3912 ++input_line_pointer;
3913 else if (*input_line_pointer == 'E')
3915 as_bad (_("EBCDIC constants are not supported"));
3916 ++input_line_pointer;
3919 input_line_pointer++;
3920 for (scan = 0; scan < nbytes; scan++)
3922 if (*input_line_pointer == '\'')
3924 if (input_line_pointer[1] == '\'')
3926 input_line_pointer++;
3931 result = (result << 8) | (*input_line_pointer++);
3935 while (scan < nbytes)
3941 /* Create correct expression. */
3942 exp->X_op = O_constant;
3943 exp->X_add_number = result;
3945 /* Fake it so that we can read the next char too. */
3946 if (input_line_pointer[0] != '\'' ||
3947 (input_line_pointer[0] == '\'' && input_line_pointer[1] == '\''))
3949 input_line_pointer -= 2;
3950 input_line_pointer[0] = ',';
3951 input_line_pointer[1] = '\'';
3954 input_line_pointer++;
3957 #endif /* TC_M68K */
3959 #ifdef REPEAT_CONS_EXPRESSIONS
3961 /* Parse a repeat expression for cons. This is used by the MIPS
3962 assembler. The format is NUMBER:COUNT; NUMBER appears in the
3963 object file COUNT times.
3965 To use this for a target, define REPEAT_CONS_EXPRESSIONS. */
3968 parse_repeat_cons (exp, nbytes)
3970 unsigned int nbytes;
3977 if (*input_line_pointer != ':')
3979 /* No repeat count. */
3983 ++input_line_pointer;
3984 expression (&count);
3985 if (count.X_op != O_constant
3986 || count.X_add_number <= 0)
3988 as_warn (_("unresolvable or nonpositive repeat count; using 1"));
3992 /* The cons function is going to output this expression once. So we
3993 output it count - 1 times. */
3994 for (i = count.X_add_number - 1; i > 0; i--)
3995 emit_expr (exp, nbytes);
3998 #endif /* REPEAT_CONS_EXPRESSIONS */
4000 /* Parse a floating point number represented as a hex constant. This
4001 permits users to specify the exact bits they want in the floating
4005 hex_float (int float_type, char *bytes)
4037 as_bad (_("unknown floating type type '%c'"), float_type);
4041 /* It would be nice if we could go through expression to parse the
4042 hex constant, but if we get a bignum it's a pain to sort it into
4043 the buffer correctly. */
4045 while (hex_p (*input_line_pointer) || *input_line_pointer == '_')
4049 /* The MRI assembler accepts arbitrary underscores strewn about
4050 through the hex constant, so we ignore them as well. */
4051 if (*input_line_pointer == '_')
4053 ++input_line_pointer;
4059 as_warn (_("floating point constant too large"));
4062 d = hex_value (*input_line_pointer) << 4;
4063 ++input_line_pointer;
4064 while (*input_line_pointer == '_')
4065 ++input_line_pointer;
4066 if (hex_p (*input_line_pointer))
4068 d += hex_value (*input_line_pointer);
4069 ++input_line_pointer;
4071 if (target_big_endian)
4074 bytes[length - i - 1] = d;
4080 if (target_big_endian)
4081 memset (bytes + i, 0, length - i);
4083 memset (bytes, 0, length - i);
4091 CONStruct some more frag chars of .floats .ffloats etc.
4092 Makes 0 or more new frags.
4093 If need_pass_2 == 1, no frags are emitted.
4094 This understands only floating literals, not expressions. Sorry.
4096 A floating constant is defined by atof_generic(), except it is preceded
4097 by 0d 0f 0g or 0h. After observing the STRANGE way my BSD AS does its
4098 reading, I decided to be incompatible. This always tries to give you
4099 rounded bits to the precision of the pseudo-op. Former AS did premature
4100 truncation, restored noisy bits instead of trailing 0s AND gave you
4101 a choice of 2 flavours of noise according to which of 2 floating-point
4102 scanners you directed AS to use.
4104 In: input_line_pointer->whitespace before, or '0' of flonum. */
4107 float_cons (/* Clobbers input_line-pointer, checks end-of-line. */
4108 register int float_type /* 'f':.ffloat ... 'F':.float ... */)
4111 int length; /* Number of chars in an object. */
4112 register char *err; /* Error from scanning floating literal. */
4113 char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
4115 if (is_it_end_of_statement ())
4117 demand_empty_rest_of_line ();
4121 #ifdef md_flush_pending_output
4122 md_flush_pending_output ();
4127 /* input_line_pointer->1st char of a flonum (we hope!). */
4130 /* Skip any 0{letter} that may be present. Don't even check if the
4131 letter is legal. Someone may invent a "z" format and this routine
4132 has no use for such information. Lusers beware: you get
4133 diagnostics if your input is ill-conditioned. */
4134 if (input_line_pointer[0] == '0'
4135 && ISALPHA (input_line_pointer[1]))
4136 input_line_pointer += 2;
4138 /* Accept :xxxx, where the x's are hex digits, for a floating
4139 point with the exact digits specified. */
4140 if (input_line_pointer[0] == ':')
4142 ++input_line_pointer;
4143 length = hex_float (float_type, temp);
4146 ignore_rest_of_line ();
4152 err = md_atof (float_type, temp, &length);
4153 know (length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
4157 as_bad (_("bad floating literal: %s"), err);
4158 ignore_rest_of_line ();
4169 #ifdef REPEAT_CONS_EXPRESSIONS
4170 if (*input_line_pointer == ':')
4172 expressionS count_exp;
4174 ++input_line_pointer;
4175 expression (&count_exp);
4177 if (count_exp.X_op != O_constant
4178 || count_exp.X_add_number <= 0)
4179 as_warn (_("unresolvable or nonpositive repeat count; using 1"));
4181 count = count_exp.X_add_number;
4185 while (--count >= 0)
4187 p = frag_more (length);
4188 memcpy (p, temp, (unsigned int) length);
4193 while (*input_line_pointer++ == ',');
4195 /* Put terminator back into stream. */
4196 --input_line_pointer;
4197 demand_empty_rest_of_line ();
4200 /* Return the size of a LEB128 value. */
4203 sizeof_sleb128 (offsetT value)
4205 register int size = 0;
4206 register unsigned byte;
4210 byte = (value & 0x7f);
4211 /* Sadly, we cannot rely on typical arithmetic right shift behaviour.
4212 Fortunately, we can structure things so that the extra work reduces
4213 to a noop on systems that do things "properly". */
4214 value = (value >> 7) | ~(-(offsetT)1 >> 7);
4217 while (!(((value == 0) && ((byte & 0x40) == 0))
4218 || ((value == -1) && ((byte & 0x40) != 0))));
4224 sizeof_uleb128 (valueT value)
4226 register int size = 0;
4227 register unsigned byte;
4231 byte = (value & 0x7f);
4241 sizeof_leb128 (valueT value, int sign)
4244 return sizeof_sleb128 ((offsetT) value);
4246 return sizeof_uleb128 (value);
4249 /* Output a LEB128 value. */
4252 output_sleb128 (char *p, offsetT value)
4254 register char *orig = p;
4259 unsigned byte = (value & 0x7f);
4261 /* Sadly, we cannot rely on typical arithmetic right shift behaviour.
4262 Fortunately, we can structure things so that the extra work reduces
4263 to a noop on systems that do things "properly". */
4264 value = (value >> 7) | ~(-(offsetT)1 >> 7);
4266 more = !((((value == 0) && ((byte & 0x40) == 0))
4267 || ((value == -1) && ((byte & 0x40) != 0))));
4279 output_uleb128 (char *p, valueT value)
4285 unsigned byte = (value & 0x7f);
4288 /* More bytes to follow. */
4299 output_leb128 (char *p, valueT value, int sign)
4302 return output_sleb128 (p, (offsetT) value);
4304 return output_uleb128 (p, value);
4307 /* Do the same for bignums. We combine sizeof with output here in that
4308 we don't output for NULL values of P. It isn't really as critical as
4309 for "normal" values that this be streamlined. */
4312 output_big_sleb128 (char *p, LITTLENUM_TYPE *bignum, int size)
4319 /* Strip leading sign extensions off the bignum. */
4321 && bignum[size - 1] == LITTLENUM_MASK
4322 && bignum[size - 2] > LITTLENUM_MASK / 2)
4327 /* OR in the next part of the littlenum. */
4328 val |= (*bignum << loaded);
4329 loaded += LITTLENUM_NUMBER_OF_BITS;
4333 /* Add bytes until there are less than 7 bits left in VAL
4334 or until every non-sign bit has been written. */
4341 || val != ((byte & 0x40) == 0 ? 0 : ((valueT) 1 << loaded) - 1))
4348 while ((byte & 0x80) != 0 && loaded >= 7);
4352 /* Mop up any left-over bits (of which there will be less than 7). */
4353 if ((byte & 0x80) != 0)
4355 /* Sign-extend VAL. */
4356 if (val & (1 << (loaded - 1)))
4357 val |= ~0 << loaded;
4367 output_big_uleb128 (char *p, LITTLENUM_TYPE *bignum, int size)
4374 /* Strip leading zeros off the bignum. */
4375 /* XXX: Is this needed? */
4376 while (size > 0 && bignum[size - 1] == 0)
4381 if (loaded < 7 && size > 0)
4383 val |= (*bignum << loaded);
4384 loaded += 8 * CHARS_PER_LITTLENUM;
4393 if (size > 0 || val)
4400 while (byte & 0x80);
4406 output_big_leb128 (char *p, LITTLENUM_TYPE *bignum, int size, int sign)
4409 return output_big_sleb128 (p, bignum, size);
4411 return output_big_uleb128 (p, bignum, size);
4414 /* Generate the appropriate fragments for a given expression to emit a
4418 emit_leb128_expr (expressionS *exp, int sign)
4420 operatorT op = exp->X_op;
4421 unsigned int nbytes;
4423 if (op == O_absent || op == O_illegal)
4425 as_warn (_("zero assumed for missing expression"));
4426 exp->X_add_number = 0;
4429 else if (op == O_big && exp->X_add_number <= 0)
4431 as_bad (_("floating point number invalid"));
4432 exp->X_add_number = 0;
4435 else if (op == O_register)
4437 as_warn (_("register value used as expression"));
4440 else if (op == O_constant
4442 && (exp->X_add_number < 0) != !exp->X_unsigned)
4444 /* We're outputting a signed leb128 and the sign of X_add_number
4445 doesn't reflect the sign of the original value. Convert EXP
4446 to a correctly-extended bignum instead. */
4447 convert_to_bignum (exp);
4451 /* Let check_eh_frame know that data is being emitted. nbytes == -1 is
4452 a signal that this is leb128 data. It shouldn't optimize this away. */
4453 nbytes = (unsigned int) -1;
4454 if (check_eh_frame (exp, &nbytes))
4457 /* Let the backend know that subsequent data may be byte aligned. */
4458 #ifdef md_cons_align
4462 if (op == O_constant)
4464 /* If we've got a constant, emit the thing directly right now. */
4466 valueT value = exp->X_add_number;
4470 size = sizeof_leb128 (value, sign);
4471 p = frag_more (size);
4472 output_leb128 (p, value, sign);
4474 else if (op == O_big)
4476 /* O_big is a different sort of constant. */
4481 size = output_big_leb128 (NULL, generic_bignum, exp->X_add_number, sign);
4482 p = frag_more (size);
4483 output_big_leb128 (p, generic_bignum, exp->X_add_number, sign);
4487 /* Otherwise, we have to create a variable sized fragment and
4488 resolve things later. */
4490 frag_var (rs_leb128, sizeof_uleb128 (~(valueT) 0), 0, sign,
4491 make_expr_symbol (exp), 0, (char *) NULL);
4495 /* Parse the .sleb128 and .uleb128 pseudos. */
4502 #ifdef md_flush_pending_output
4503 md_flush_pending_output ();
4509 emit_leb128_expr (&exp, sign);
4511 while (*input_line_pointer++ == ',');
4513 input_line_pointer--;
4514 demand_empty_rest_of_line ();
4517 /* We read 0 or more ',' separated, double-quoted strings.
4518 Caller should have checked need_pass_2 is FALSE because we don't
4522 stringer (/* Worker to do .ascii etc statements. */
4523 /* Checks end-of-line. */
4524 register int append_zero /* 0: don't append '\0', else 1. */)
4526 register unsigned int c;
4529 #ifdef md_flush_pending_output
4530 md_flush_pending_output ();
4533 /* The following awkward logic is to parse ZERO or more strings,
4534 comma separated. Recall a string expression includes spaces
4535 before the opening '\"' and spaces after the closing '\"'.
4536 We fake a leading ',' if there is (supposed to be)
4537 a 1st, expression. We keep demanding expressions for each ','. */
4538 if (is_it_end_of_statement ())
4540 c = 0; /* Skip loop. */
4541 ++input_line_pointer; /* Compensate for end of loop. */
4545 c = ','; /* Do loop. */
4547 /* If we have been switched into the abs_section then we
4548 will not have an obstack onto which we can hang strings. */
4549 if (now_seg == absolute_section)
4551 as_bad (_("strings must be placed into a section"));
4553 ignore_rest_of_line ();
4556 while (c == ',' || c == '<' || c == '"')
4559 switch (*input_line_pointer)
4562 ++input_line_pointer; /*->1st char of string. */
4563 start = input_line_pointer;
4564 while (is_a_char (c = next_char_of_string ()))
4566 FRAG_APPEND_1_CHAR (c);
4570 FRAG_APPEND_1_CHAR (0);
4572 know (input_line_pointer[-1] == '\"');
4576 /* In ELF, when gcc is emitting DWARF 1 debugging output, it
4577 will emit .string with a filename in the .debug section
4578 after a sequence of constants. See the comment in
4579 emit_expr for the sequence. emit_expr will set
4580 dwarf_file_string to non-zero if this string might be a
4581 source file name. */
4582 if (strcmp (segment_name (now_seg), ".debug") != 0)
4583 dwarf_file_string = 0;
4584 else if (dwarf_file_string)
4586 c = input_line_pointer[-1];
4587 input_line_pointer[-1] = '\0';
4588 listing_source_file (start);
4589 input_line_pointer[-1] = c;
4596 input_line_pointer++;
4597 c = get_single_number ();
4598 FRAG_APPEND_1_CHAR (c);
4599 if (*input_line_pointer != '>')
4601 as_bad (_("expected <nn>"));
4603 input_line_pointer++;
4606 input_line_pointer++;
4610 c = *input_line_pointer;
4613 demand_empty_rest_of_line ();
4616 /* FIXME-SOMEDAY: I had trouble here on characters with the
4617 high bits set. We'll probably also have trouble with
4618 multibyte chars, wide chars, etc. Also be careful about
4619 returning values bigger than 1 byte. xoxorich. */
4622 next_char_of_string (void)
4624 register unsigned int c;
4626 c = *input_line_pointer++ & CHAR_MASK;
4634 as_warn (_("unterminated string; newline inserted"));
4635 bump_line_counters ();
4638 #ifndef NO_STRING_ESCAPES
4640 switch (c = *input_line_pointer++)
4668 break; /* As itself. */
4684 for (i = 0, number = 0;
4685 ISDIGIT (c) && i < 3;
4686 c = *input_line_pointer++, i++)
4688 number = number * 8 + c - '0';
4693 --input_line_pointer;
4702 c = *input_line_pointer++;
4703 while (ISXDIGIT (c))
4706 number = number * 16 + c - '0';
4707 else if (ISUPPER (c))
4708 number = number * 16 + c - 'A' + 10;
4710 number = number * 16 + c - 'a' + 10;
4711 c = *input_line_pointer++;
4714 --input_line_pointer;
4719 /* To be compatible with BSD 4.2 as: give the luser a linefeed!! */
4720 as_warn (_("unterminated string; newline inserted"));
4722 bump_line_counters ();
4727 #ifdef ONLY_STANDARD_ESCAPES
4728 as_bad (_("bad escaped character in string"));
4730 #endif /* ONLY_STANDARD_ESCAPES */
4735 #endif /* ! defined (NO_STRING_ESCAPES) */
4744 get_segmented_expression (register expressionS *expP)
4746 register segT retval;
4748 retval = expression (expP);
4749 if (expP->X_op == O_illegal
4750 || expP->X_op == O_absent
4751 || expP->X_op == O_big)
4753 as_bad (_("expected address expression"));
4754 expP->X_op = O_constant;
4755 expP->X_add_number = 0;
4756 retval = absolute_section;
4762 get_known_segmented_expression (register expressionS *expP)
4764 register segT retval;
4766 if ((retval = get_segmented_expression (expP)) == undefined_section)
4768 /* There is no easy way to extract the undefined symbol from the
4770 if (expP->X_add_symbol != NULL
4771 && S_GET_SEGMENT (expP->X_add_symbol) != expr_section)
4772 as_warn (_("symbol \"%s\" undefined; zero assumed"),
4773 S_GET_NAME (expP->X_add_symbol));
4775 as_warn (_("some symbol undefined; zero assumed"));
4776 retval = absolute_section;
4777 expP->X_op = O_constant;
4778 expP->X_add_number = 0;
4780 know (retval == absolute_section || SEG_NORMAL (retval));
4784 char /* Return terminator. */
4785 get_absolute_expression_and_terminator (long *val_pointer /* Return value of expression. */)
4787 /* FIXME: val_pointer should probably be offsetT *. */
4788 *val_pointer = (long) get_absolute_expression ();
4789 return (*input_line_pointer++);
4792 /* Like demand_copy_string, but return NULL if the string contains any '\0's.
4793 Give a warning if that happens. */
4796 demand_copy_C_string (int *len_pointer)
4800 if ((s = demand_copy_string (len_pointer)) != 0)
4804 for (len = *len_pointer; len > 0; len--)
4811 as_bad (_("this string may not contain \'\\0\'"));
4819 /* Demand string, but return a safe (=private) copy of the string.
4820 Return NULL if we can't read a string here. */
4823 demand_copy_string (int *lenP)
4825 register unsigned int c;
4831 if (*input_line_pointer == '\"')
4833 input_line_pointer++; /* Skip opening quote. */
4835 while (is_a_char (c = next_char_of_string ()))
4837 obstack_1grow (¬es, c);
4840 /* JF this next line is so demand_copy_C_string will return a
4841 null terminated string. */
4842 obstack_1grow (¬es, '\0');
4843 retval = obstack_finish (¬es);
4847 as_bad (_("missing string"));
4849 ignore_rest_of_line ();
4855 /* In: Input_line_pointer->next character.
4857 Do: Skip input_line_pointer over all whitespace.
4859 Out: 1 if input_line_pointer->end-of-line. */
4862 is_it_end_of_statement (void)
4865 return (is_end_of_line[(unsigned char) *input_line_pointer]);
4869 equals (char *sym_name, int reassign)
4874 input_line_pointer++;
4875 if (*input_line_pointer == '=')
4876 input_line_pointer++;
4877 if (reassign < 0 && *input_line_pointer == '=')
4878 input_line_pointer++;
4880 while (*input_line_pointer == ' ' || *input_line_pointer == '\t')
4881 input_line_pointer++;
4884 stop = mri_comment_field (&stopc);
4886 assign_symbol (sym_name, reassign >= 0 ? !reassign : reassign);
4890 demand_empty_rest_of_line ();
4891 mri_comment_end (stop, stopc);
4895 /* .incbin -- include a file verbatim at the current location. */
4898 s_incbin (int x ATTRIBUTE_UNUSED)
4909 #ifdef md_flush_pending_output
4910 md_flush_pending_output ();
4914 filename = demand_copy_string (& len);
4915 if (filename == NULL)
4920 /* Look for optional skip and count. */
4921 if (* input_line_pointer == ',')
4923 ++ input_line_pointer;
4924 skip = get_absolute_expression ();
4928 if (* input_line_pointer == ',')
4930 ++ input_line_pointer;
4932 count = get_absolute_expression ();
4934 as_warn (_(".incbin count zero, ignoring `%s'"), filename);
4940 demand_empty_rest_of_line ();
4942 /* Try opening absolute path first, then try include dirs. */
4943 binfile = fopen (filename, FOPEN_RB);
4944 if (binfile == NULL)
4948 path = xmalloc ((unsigned long) len + include_dir_maxlen + 5);
4950 for (i = 0; i < include_dir_count; i++)
4952 sprintf (path, "%s/%s", include_dirs[i], filename);
4954 binfile = fopen (path, FOPEN_RB);
4955 if (binfile != NULL)
4959 if (binfile == NULL)
4960 as_bad (_("file not found: %s"), filename);
4963 path = xstrdup (filename);
4969 register_dependency (path);
4971 /* Compute the length of the file. */
4972 if (fseek (binfile, 0, SEEK_END) != 0)
4974 as_bad (_("seek to end of .incbin file failed `%s'"), path);
4977 file_len = ftell (binfile);
4979 /* If a count was not specified use the remainder of the file. */
4981 count = file_len - skip;
4983 if (skip < 0 || count < 0 || file_len < 0 || skip + count > file_len)
4985 as_bad (_("skip (%ld) or count (%ld) invalid for file size (%ld)"),
4986 skip, count, file_len);
4990 if (fseek (binfile, skip, SEEK_SET) != 0)
4992 as_bad (_("could not skip to %ld in file `%s'"), skip, path);
4996 /* Allocate frag space and store file contents in it. */
4997 binfrag = frag_more (count);
4999 bytes = fread (binfrag, 1, count, binfile);
5001 as_warn (_("truncated file `%s', %ld of %ld bytes read"),
5002 path, bytes, count);
5005 if (binfile != NULL)
5011 /* .include -- include a file at this point. */
5014 s_include (int arg ATTRIBUTE_UNUSED)
5023 filename = demand_copy_string (&i);
5024 if (filename == NULL)
5026 /* demand_copy_string has already printed an error and
5027 called ignore_rest_of_line. */
5035 while (!is_end_of_line[(unsigned char) *input_line_pointer]
5036 && *input_line_pointer != ' '
5037 && *input_line_pointer != '\t')
5039 obstack_1grow (¬es, *input_line_pointer);
5040 ++input_line_pointer;
5044 obstack_1grow (¬es, '\0');
5045 filename = obstack_finish (¬es);
5046 while (!is_end_of_line[(unsigned char) *input_line_pointer])
5047 ++input_line_pointer;
5050 demand_empty_rest_of_line ();
5051 path = xmalloc ((unsigned long) i + include_dir_maxlen + 5 /* slop */ );
5053 for (i = 0; i < include_dir_count; i++)
5055 strcpy (path, include_dirs[i]);
5057 strcat (path, filename);
5058 if (0 != (try = fopen (path, FOPEN_RT)))
5068 /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */
5069 register_dependency (path);
5070 input_scrub_insert_file (path);
5074 add_include_dir (char *path)
5078 if (include_dir_count == 0)
5080 include_dirs = (char **) xmalloc (2 * sizeof (*include_dirs));
5081 include_dirs[0] = "."; /* Current dir. */
5082 include_dir_count = 2;
5086 include_dir_count++;
5088 (char **) realloc (include_dirs,
5089 include_dir_count * sizeof (*include_dirs));
5092 include_dirs[include_dir_count - 1] = path; /* New one. */
5095 if (i > include_dir_maxlen)
5096 include_dir_maxlen = i;
5099 /* Output debugging information to denote the source file. */
5102 generate_file_debug (void)
5104 if (debug_type == DEBUG_STABS)
5105 stabs_generate_asm_file ();
5108 /* Output line number debugging information for the current source line. */
5111 generate_lineno_debug (void)
5115 case DEBUG_UNSPECIFIED:
5120 stabs_generate_asm_lineno ();
5123 ecoff_generate_asm_lineno ();
5126 /* ??? We could here indicate to dwarf2dbg.c that something
5127 has changed. However, since there is additional backend
5128 support that is required (calling dwarf2_emit_insn), we
5129 let dwarf2dbg.c call as_where on its own. */
5134 /* Output debugging information to mark a function entry point or end point.
5135 END_P is zero for .func, and non-zero for .endfunc. */
5140 do_s_func (end_p, NULL);
5143 /* Subroutine of s_func so targets can choose a different default prefix.
5144 If DEFAULT_PREFIX is NULL, use the target's "leading char". */
5147 do_s_func (int end_p, const char *default_prefix)
5149 /* Record the current function so that we can issue an error message for
5150 misplaced .func,.endfunc, and also so that .endfunc needs no
5152 static char *current_name;
5153 static char *current_label;
5157 if (current_name == NULL)
5159 as_bad (_("missing .func"));
5160 ignore_rest_of_line ();
5164 if (debug_type == DEBUG_STABS)
5165 stabs_generate_asm_endfunc (current_name, current_label);
5167 current_name = current_label = NULL;
5172 char delim1, delim2;
5174 if (current_name != NULL)
5176 as_bad (_(".endfunc missing for previous .func"));
5177 ignore_rest_of_line ();
5181 name = input_line_pointer;
5182 delim1 = get_symbol_end ();
5183 name = xstrdup (name);
5184 *input_line_pointer = delim1;
5186 if (*input_line_pointer != ',')
5189 asprintf (&label, "%s%s", default_prefix, name);
5192 char leading_char = bfd_get_symbol_leading_char (stdoutput);
5193 /* Missing entry point, use function's name with the leading
5196 asprintf (&label, "%c%s", leading_char, name);
5203 ++input_line_pointer;
5205 label = input_line_pointer;
5206 delim2 = get_symbol_end ();
5207 label = xstrdup (label);
5208 *input_line_pointer = delim2;
5211 if (debug_type == DEBUG_STABS)
5212 stabs_generate_asm_func (name, label);
5214 current_name = name;
5215 current_label = label;
5218 demand_empty_rest_of_line ();
5222 s_ignore (int arg ATTRIBUTE_UNUSED)
5224 ignore_rest_of_line ();
5228 read_print_statistics (FILE *file)
5230 hash_print_statistics (file, "pseudo-op table", po_hash);
5233 /* Inserts the given line into the input stream.
5235 This call avoids macro/conditionals nesting checking, since the contents of
5236 the line are assumed to replace the contents of a line already scanned.
5238 An appropriate use of this function would be substitution of input lines when
5239 called by md_start_line_hook(). The given line is assumed to already be
5240 properly scrubbed. */
5243 input_scrub_insert_line (const char *line)
5247 sb_add_string (&newline, line);
5248 input_scrub_include_sb (&newline, input_line_pointer, 0);
5250 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
5253 /* Insert a file into the input stream; the path must resolve to an actual
5254 file; no include path searching or dependency registering is performed. */
5257 input_scrub_insert_file (char *path)
5259 input_scrub_include_file (path, input_line_pointer);
5260 buffer_limit = input_scrub_next_buffer (&input_line_pointer);
5263 /* Find the end of a line, considering quotation and escaping of quotes. */
5265 #if !defined(TC_SINGLE_QUOTE_STRINGS) && defined(SINGLE_QUOTE_STRINGS)
5266 # define TC_SINGLE_QUOTE_STRINGS 1
5270 _find_end_of_line (char *s, int mri_string, int insn ATTRIBUTE_UNUSED)
5272 char inquote = '\0';
5275 while (!is_end_of_line[(unsigned char) *s]
5276 || (inquote && !ISCNTRL (*s))
5277 || (inquote == '\'' && flag_mri)
5278 #ifdef TC_EOL_IN_INSN
5279 || (insn && TC_EOL_IN_INSN (s))
5283 if (mri_string && *s == '\'')
5287 else if (*s == '\\')
5291 #ifdef TC_SINGLE_QUOTE_STRINGS
5292 || (TC_SINGLE_QUOTE_STRINGS && *s == '\'')
5299 as_warn (_("missing closing `%c'"), inquote);
5301 as_warn (_("stray `\\'"));
5306 find_end_of_line (char *s, int mri_string)
5308 return _find_end_of_line (s, mri_string, 0);