Commit | Line | Data |
---|---|---|
fecd2382 | 1 | /* read.c - read a source file - |
ddb393cf ILT |
2 | Copyright (C) 1986, 1987, 1990, 1991, 1993, 1994 |
3 | Free Software Foundation, Inc. | |
3340f7e5 | 4 | |
f8701a3f SC |
5 | This file is part of GAS, the GNU Assembler. |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to | |
a2a5a4fa | 19 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
fecd2382 | 20 | |
016e0d42 | 21 | #if 0 |
fecd2382 RP |
22 | #define MASK_CHAR (0xFF) /* If your chars aren't 8 bits, you will |
23 | change this a bit. But then, GNU isn't | |
24 | spozed to run on your machine anyway. | |
25 | (RMS is so shortsighted sometimes.) | |
26 | */ | |
016e0d42 ILT |
27 | #else |
28 | #define MASK_CHAR ((int)(unsigned char)-1) | |
29 | #endif | |
fecd2382 | 30 | |
9a7d824a | 31 | |
9471a360 KR |
32 | /* This is the largest known floating point format (for now). It will |
33 | grow when we do 4361 style flonums. */ | |
fecd2382 | 34 | |
9471a360 | 35 | #define MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT (16) |
fecd2382 | 36 | |
016e0d42 ILT |
37 | /* Routines that read assembler source text to build spagetti in memory. |
38 | Another group of these functions is in the expr.c module. */ | |
fecd2382 | 39 | |
9471a360 | 40 | /* for isdigit() */ |
6efd877d KR |
41 | #include <ctype.h> |
42 | ||
fecd2382 | 43 | #include "as.h" |
9471a360 | 44 | #include "subsegs.h" |
7e047ac2 ILT |
45 | #include "sb.h" |
46 | #include "macro.h" | |
1356d77d | 47 | #include "libiberty.h" |
fecd2382 | 48 | #include "obstack.h" |
9a7d824a ILT |
49 | #include "listing.h" |
50 | ||
9a7d824a ILT |
51 | #ifndef TC_START_LABEL |
52 | #define TC_START_LABEL(x,y) (x==':') | |
53 | #endif | |
fecd2382 | 54 | |
016e0d42 ILT |
55 | /* The NOP_OPCODE is for the alignment fill value. |
56 | * fill it a nop instruction so that the disassembler does not choke | |
57 | * on it | |
58 | */ | |
59 | #ifndef NOP_OPCODE | |
60 | #define NOP_OPCODE 0x00 | |
61 | #endif | |
62 | ||
63 | char *input_line_pointer; /*->next char of source file to parse. */ | |
fecd2382 | 64 | |
326d16ca | 65 | int generate_asm_lineno = 0; /* flag to generate line stab for .s file */ |
daad3bbf | 66 | |
fecd2382 | 67 | #if BITS_PER_CHAR != 8 |
6efd877d KR |
68 | /* The following table is indexed by[(char)] and will break if |
69 | a char does not have exactly 256 states (hopefully 0:255!)! */ | |
70 | die horribly; | |
fecd2382 | 71 | #endif |
f8701a3f | 72 | |
c978e704 ILT |
73 | #ifndef LEX_AT |
74 | /* The m88k unfortunately uses @ as a label beginner. */ | |
75 | #define LEX_AT 0 | |
76 | #endif | |
77 | ||
ddb393cf ILT |
78 | #ifndef LEX_BR |
79 | /* The RS/6000 assembler uses {,},[,] as parts of symbol names. */ | |
80 | #define LEX_BR 0 | |
81 | #endif | |
82 | ||
6ef37255 KR |
83 | #ifndef LEX_PCT |
84 | /* The Delta 68k assembler permits % inside label names. */ | |
85 | #define LEX_PCT 0 | |
86 | #endif | |
87 | ||
18c9057f ILT |
88 | #ifndef LEX_QM |
89 | /* The PowerPC Windows NT assemblers permits ? inside label names. */ | |
90 | #define LEX_QM 0 | |
91 | #endif | |
92 | ||
016e0d42 | 93 | /* used by is_... macros. our ctype[] */ |
1356d77d | 94 | char lex_type[256] = |
016e0d42 ILT |
95 | { |
96 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */ | |
97 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */ | |
6ef37255 | 98 | 0, 0, 0, 0, 3, LEX_PCT, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */ |
18c9057f | 99 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, LEX_QM, /* 0123456789:;<=>? */ |
c978e704 | 100 | LEX_AT, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */ |
ddb393cf | 101 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, 0, 3, /* PQRSTUVWXYZ[\]^_ */ |
016e0d42 | 102 | 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */ |
ddb393cf | 103 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, 0, 0, /* pqrstuvwxyz{|}~. */ |
016e0d42 ILT |
104 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
105 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
106 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
107 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
108 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
109 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
110 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
111 | }; | |
112 | ||
113 | ||
114 | /* | |
fecd2382 RP |
115 | * In: a character. |
116 | * Out: 1 if this character ends a line. | |
117 | */ | |
118 | #define _ (0) | |
016e0d42 ILT |
119 | char is_end_of_line[256] = |
120 | { | |
fecd2382 | 121 | #ifdef CR_EOL |
016e0d42 | 122 | _, _, _, _, _, _, _, _, _, _, 99, _, _, 99, _, _, /* @abcdefghijklmno */ |
fecd2382 | 123 | #else |
016e0d42 | 124 | _, _, _, _, _, _, _, _, _, _, 99, _, _, _, _, _, /* @abcdefghijklmno */ |
fecd2382 | 125 | #endif |
016e0d42 | 126 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ |
40324362 KR |
127 | #ifdef TC_HPPA |
128 | _,99, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* _!"#$%&'()*+,-./ */ | |
129 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* 0123456789:;<=>? */ | |
130 | #else | |
016e0d42 ILT |
131 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ |
132 | _, _, _, _, _, _, _, _, _, _, _, 99, _, _, _, _, /* 0123456789:;<=>? */ | |
40324362 | 133 | #endif |
016e0d42 ILT |
134 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ |
135 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
136 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
137 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
138 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
139 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
140 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
141 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
142 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
143 | }; | |
fecd2382 RP |
144 | #undef _ |
145 | ||
016e0d42 ILT |
146 | /* Functions private to this file. */ |
147 | ||
148 | static char *buffer; /* 1st char of each buffer of lines is here. */ | |
149 | static char *buffer_limit; /*->1 + last char in buffer. */ | |
fecd2382 | 150 | |
2209b19c KR |
151 | #ifdef TARGET_BYTES_BIG_ENDIAN |
152 | /* Hack to deal with tc-*.h defining TARGET_BYTES_BIG_ENDIAN to empty | |
153 | instead of to 0 or 1. */ | |
154 | #if 5 - TARGET_BYTES_BIG_ENDIAN - 5 == 10 | |
155 | #undef TARGET_BYTES_BIG_ENDIAN | |
156 | #define TARGET_BYTES_BIG_ENDIAN 1 | |
157 | #endif | |
158 | int target_big_endian = TARGET_BYTES_BIG_ENDIAN; | |
159 | #else | |
160 | int target_big_endian /* = 0 */; | |
161 | #endif | |
9c6d3f66 | 162 | |
9471a360 | 163 | static char *old_buffer; /* JF a hack */ |
016e0d42 ILT |
164 | static char *old_input; |
165 | static char *old_limit; | |
fecd2382 | 166 | |
016e0d42 | 167 | /* Variables for handling include file directory list. */ |
fecd2382 | 168 | |
016e0d42 ILT |
169 | char **include_dirs; /* List of pointers to directories to |
170 | search for .include's */ | |
171 | int include_dir_count; /* How many are in the list */ | |
172 | int include_dir_maxlen = 1;/* Length of longest in list */ | |
fecd2382 RP |
173 | |
174 | #ifndef WORKING_DOT_WORD | |
016e0d42 | 175 | struct broken_word *broken_words; |
9471a360 | 176 | int new_broken_words; |
fecd2382 RP |
177 | #endif |
178 | ||
e28c40d7 ILT |
179 | /* The current offset into the absolute section. We don't try to |
180 | build frags in the absolute section, since no data can be stored | |
181 | there. We just keep track of the current offset. */ | |
182 | addressT abs_section_offset; | |
183 | ||
1356d77d ILT |
184 | /* If this line had an MRI style label, it is stored in this variable. |
185 | This is used by some of the MRI pseudo-ops. */ | |
7e047ac2 | 186 | symbolS *line_label; |
1356d77d ILT |
187 | |
188 | /* This global variable is used to support MRI common sections. We | |
189 | translate such sections into a common symbol. This variable is | |
190 | non-NULL when we are in an MRI common section. */ | |
191 | symbolS *mri_common_symbol; | |
192 | ||
286cb27a ILT |
193 | /* In MRI mode, after a dc.b pseudo-op with an odd number of bytes, we |
194 | need to align to an even byte boundary unless the next pseudo-op is | |
195 | dc.b, ds.b, or dcb.b. This variable is set to 1 if an alignment | |
196 | may be needed. */ | |
197 | static int mri_pending_align; | |
198 | ||
86038ada | 199 | static int scrub_from_string PARAMS ((char **)); |
286cb27a | 200 | static void do_align PARAMS ((int, char *)); |
e28c40d7 ILT |
201 | static int hex_float PARAMS ((int, char *)); |
202 | static void do_org PARAMS ((segT, expressionS *, int)); | |
6ef37255 | 203 | char *demand_copy_string PARAMS ((int *lenP)); |
016e0d42 | 204 | int is_it_end_of_statement PARAMS ((void)); |
5ac34ac3 | 205 | static segT get_segmented_expression PARAMS ((expressionS *expP)); |
016e0d42 | 206 | static segT get_known_segmented_expression PARAMS ((expressionS * expP)); |
016e0d42 | 207 | static void pobegin PARAMS ((void)); |
7e047ac2 | 208 | static int get_line_sb PARAMS ((sb *)); |
fecd2382 | 209 | \f |
6efd877d | 210 | |
016e0d42 ILT |
211 | void |
212 | read_begin () | |
fecd2382 | 213 | { |
016e0d42 | 214 | const char *p; |
f8701a3f | 215 | |
6efd877d KR |
216 | pobegin (); |
217 | obj_read_begin_hook (); | |
f8701a3f | 218 | |
4380166d KR |
219 | /* Something close -- but not too close -- to a multiple of 1024. |
220 | The debugging malloc I'm using has 24 bytes of overhead. */ | |
221 | obstack_begin (¬es, 5090); | |
222 | obstack_begin (&cond_obstack, 990); | |
f8701a3f | 223 | |
f8701a3f SC |
224 | /* Use machine dependent syntax */ |
225 | for (p = line_separator_chars; *p; p++) | |
58d4951d | 226 | is_end_of_line[(unsigned char) *p] = 1; |
f8701a3f | 227 | /* Use more. FIXME-SOMEDAY. */ |
1356d77d ILT |
228 | |
229 | if (flag_mri) | |
230 | lex_type['?'] = 3; | |
fecd2382 RP |
231 | } |
232 | \f | |
233 | /* set up pseudo-op tables */ | |
234 | ||
1356d77d | 235 | static struct hash_control *po_hash; |
fecd2382 | 236 | |
016e0d42 | 237 | static const pseudo_typeS potable[] = |
fecd2382 | 238 | { |
6efd877d KR |
239 | {"abort", s_abort, 0}, |
240 | {"align", s_align_ptwo, 0}, | |
241 | {"ascii", stringer, 0}, | |
242 | {"asciz", stringer, 1}, | |
931a8fab | 243 | {"balign", s_align_bytes, 0}, |
f8701a3f | 244 | /* block */ |
6efd877d KR |
245 | {"byte", cons, 1}, |
246 | {"comm", s_comm, 0}, | |
1356d77d ILT |
247 | {"common", s_mri_common, 0}, |
248 | {"common.s", s_mri_common, 1}, | |
6efd877d | 249 | {"data", s_data, 0}, |
1356d77d ILT |
250 | {"dc", cons, 2}, |
251 | {"dc.b", cons, 1}, | |
252 | {"dc.d", float_cons, 'd'}, | |
253 | {"dc.l", cons, 4}, | |
254 | {"dc.s", float_cons, 'f'}, | |
255 | {"dc.w", cons, 2}, | |
256 | {"dc.x", float_cons, 'x'}, | |
e28c40d7 ILT |
257 | {"dcb", s_space, 2}, |
258 | {"dcb.b", s_space, 1}, | |
259 | {"dcb.d", s_float_space, 'd'}, | |
260 | {"dcb.l", s_space, 4}, | |
261 | {"dcb.s", s_float_space, 'f'}, | |
262 | {"dcb.w", s_space, 2}, | |
263 | {"dcb.x", s_float_space, 'x'}, | |
1356d77d ILT |
264 | {"ds", s_space, 2}, |
265 | {"ds.b", s_space, 1}, | |
e28c40d7 | 266 | {"ds.d", s_space, 8}, |
1356d77d | 267 | {"ds.l", s_space, 4}, |
e28c40d7 ILT |
268 | {"ds.p", s_space, 12}, |
269 | {"ds.s", s_space, 4}, | |
1356d77d | 270 | {"ds.w", s_space, 2}, |
e28c40d7 | 271 | {"ds.x", s_space, 12}, |
604633ae | 272 | #ifdef S_SET_DESC |
4064305e | 273 | {"desc", s_desc, 0}, |
604633ae | 274 | #endif |
f8701a3f | 275 | /* dim */ |
6efd877d | 276 | {"double", float_cons, 'd'}, |
f8701a3f | 277 | /* dsect */ |
6efd877d KR |
278 | {"eject", listing_eject, 0}, /* Formfeed listing */ |
279 | {"else", s_else, 0}, | |
e28c40d7 | 280 | {"elsec", s_else, 0}, |
6efd877d | 281 | {"end", s_end, 0}, |
e28c40d7 | 282 | {"endc", s_endif, 0}, |
6efd877d | 283 | {"endif", s_endif, 0}, |
f8701a3f | 284 | /* endef */ |
6efd877d | 285 | {"equ", s_set, 0}, |
f8701a3f | 286 | /* err */ |
7e047ac2 | 287 | {"exitm", s_mexit, 0}, |
f8701a3f | 288 | /* extend */ |
6efd877d | 289 | {"extern", s_ignore, 0}, /* We treat all undef as ext */ |
9a7d824a ILT |
290 | {"appfile", s_app_file, 1}, |
291 | {"appline", s_app_line, 0}, | |
e28c40d7 | 292 | {"fail", s_fail, 0}, |
6efd877d KR |
293 | {"file", s_app_file, 0}, |
294 | {"fill", s_fill, 0}, | |
295 | {"float", float_cons, 'f'}, | |
e28c40d7 | 296 | {"format", s_ignore, 0}, |
6efd877d KR |
297 | {"global", s_globl, 0}, |
298 | {"globl", s_globl, 0}, | |
299 | {"hword", cons, 2}, | |
e28c40d7 | 300 | {"if", s_if, (int) O_ne}, |
7e047ac2 | 301 | {"ifc", s_ifc, 0}, |
6efd877d | 302 | {"ifdef", s_ifdef, 0}, |
e28c40d7 | 303 | {"ifeq", s_if, (int) O_eq}, |
6efd877d | 304 | {"ifeqs", s_ifeqs, 0}, |
e28c40d7 ILT |
305 | {"ifge", s_if, (int) O_ge}, |
306 | {"ifgt", s_if, (int) O_gt}, | |
307 | {"ifle", s_if, (int) O_le}, | |
308 | {"iflt", s_if, (int) O_lt}, | |
7e047ac2 | 309 | {"ifnc", s_ifc, 1}, |
6efd877d | 310 | {"ifndef", s_ifdef, 1}, |
e28c40d7 | 311 | {"ifne", s_if, (int) O_ne}, |
6efd877d KR |
312 | {"ifnes", s_ifeqs, 1}, |
313 | {"ifnotdef", s_ifdef, 1}, | |
314 | {"include", s_include, 0}, | |
315 | {"int", cons, 4}, | |
7e047ac2 ILT |
316 | {"irp", s_irp, 0}, |
317 | {"irpc", s_irp, 1}, | |
6efd877d KR |
318 | {"lcomm", s_lcomm, 0}, |
319 | {"lflags", listing_flags, 0}, /* Listing flags */ | |
320 | {"list", listing_list, 1}, /* Turn listing on */ | |
e28c40d7 | 321 | {"llen", listing_psize, 1}, |
6efd877d KR |
322 | {"long", cons, 4}, |
323 | {"lsym", s_lsym, 0}, | |
7e047ac2 ILT |
324 | {"macro", s_macro, 0}, |
325 | {"mexit", s_mexit, 0}, | |
e28c40d7 | 326 | {"noformat", s_ignore, 0}, |
6efd877d | 327 | {"nolist", listing_list, 0}, /* Turn listing off */ |
69e077f3 | 328 | {"nopage", listing_nopage, 0}, |
80aab579 | 329 | {"octa", cons, 16}, |
e28c40d7 | 330 | {"offset", s_struct, 0}, |
6efd877d | 331 | {"org", s_org, 0}, |
931a8fab | 332 | {"p2align", s_align_ptwo, 0}, |
69e077f3 ILT |
333 | {"page", listing_eject, 0}, |
334 | {"plen", listing_psize, 0}, | |
6efd877d | 335 | {"psize", listing_psize, 0}, /* set paper size */ |
f8701a3f | 336 | /* print */ |
80aab579 | 337 | {"quad", cons, 8}, |
7e047ac2 | 338 | {"rept", s_rept, 0}, |
86038ada | 339 | {"rva", s_rva, 4}, |
6efd877d | 340 | {"sbttl", listing_title, 1}, /* Subtitle of listing */ |
f8701a3f SC |
341 | /* scl */ |
342 | /* sect */ | |
6efd877d KR |
343 | {"set", s_set, 0}, |
344 | {"short", cons, 2}, | |
345 | {"single", float_cons, 'f'}, | |
f8701a3f | 346 | /* size */ |
6efd877d | 347 | {"space", s_space, 0}, |
e14994d9 | 348 | {"spc", s_ignore, 0}, |
4064305e SS |
349 | {"stabd", s_stab, 'd'}, |
350 | {"stabn", s_stab, 'n'}, | |
351 | {"stabs", s_stab, 's'}, | |
ba71c54d | 352 | {"string", stringer, 1}, |
e28c40d7 | 353 | {"struct", s_struct, 0}, |
f8701a3f | 354 | /* tag */ |
6efd877d | 355 | {"text", s_text, 0}, |
6ef37255 KR |
356 | |
357 | /* This is for gcc to use. It's only just been added (2/94), so gcc | |
358 | won't be able to use it for a while -- probably a year or more. | |
359 | But once this has been released, check with gcc maintainers | |
360 | before deleting it or even changing the spelling. */ | |
361 | {"this_GCC_requires_the_GNU_assembler", s_ignore, 0}, | |
362 | /* If we're folding case -- done for some targets, not necessarily | |
363 | all -- the above string in an input file will be converted to | |
364 | this one. Match it either way... */ | |
365 | {"this_gcc_requires_the_gnu_assembler", s_ignore, 0}, | |
366 | ||
6efd877d | 367 | {"title", listing_title, 0}, /* Listing title */ |
e14994d9 | 368 | {"ttl", listing_title, 0}, |
f8701a3f SC |
369 | /* type */ |
370 | /* use */ | |
371 | /* val */ | |
e14994d9 | 372 | {"xcom", s_comm, 0}, |
1356d77d | 373 | {"xdef", s_globl, 0}, |
e14994d9 | 374 | {"xref", s_ignore, 0}, |
4064305e | 375 | {"xstabs", s_xstab, 's'}, |
6efd877d | 376 | {"word", cons, 2}, |
c02fd8dc | 377 | {"zero", s_space, 0}, |
6efd877d | 378 | {NULL} /* end sentinel */ |
fecd2382 RP |
379 | }; |
380 | ||
2209b19c KR |
381 | static int pop_override_ok = 0; |
382 | static const char *pop_table_name; | |
383 | ||
384 | void | |
385 | pop_insert (table) | |
386 | const pseudo_typeS *table; | |
6efd877d | 387 | { |
2209b19c | 388 | const char *errtxt; |
6efd877d | 389 | const pseudo_typeS *pop; |
2209b19c KR |
390 | for (pop = table; pop->poc_name; pop++) |
391 | { | |
392 | errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop); | |
393 | if (errtxt && (!pop_override_ok || strcmp (errtxt, "exists"))) | |
394 | as_fatal ("error constructing %s pseudo-op table", pop_table_name); | |
395 | } | |
396 | } | |
6efd877d | 397 | |
2209b19c KR |
398 | #ifndef md_pop_insert |
399 | #define md_pop_insert() pop_insert(md_pseudo_table) | |
400 | #endif | |
401 | ||
402 | #ifndef obj_pop_insert | |
403 | #define obj_pop_insert() pop_insert(obj_pseudo_table) | |
404 | #endif | |
405 | ||
406 | static void | |
407 | pobegin () | |
408 | { | |
6efd877d KR |
409 | po_hash = hash_new (); |
410 | ||
411 | /* Do the target-specific pseudo ops. */ | |
2209b19c KR |
412 | pop_table_name = "md"; |
413 | md_pop_insert (); | |
6efd877d KR |
414 | |
415 | /* Now object specific. Skip any that were in the target table. */ | |
2209b19c KR |
416 | pop_table_name = "obj"; |
417 | pop_override_ok = 1; | |
418 | obj_pop_insert (); | |
6efd877d KR |
419 | |
420 | /* Now portable ones. Skip any that we've seen already. */ | |
2209b19c KR |
421 | pop_table_name = "standard"; |
422 | pop_insert (potable); | |
423 | } | |
fecd2382 | 424 | \f |
58d4951d ILT |
425 | #define HANDLE_CONDITIONAL_ASSEMBLY() \ |
426 | if (ignore_input ()) \ | |
427 | { \ | |
428 | while (! is_end_of_line[(unsigned char) *input_line_pointer++]) \ | |
429 | if (input_line_pointer == buffer_limit) \ | |
430 | break; \ | |
431 | continue; \ | |
f8701a3f | 432 | } |
a39116f1 | 433 | |
fecd2382 | 434 | |
86038ada ILT |
435 | /* This function is used when scrubbing the characters between #APP |
436 | and #NO_APP. */ | |
437 | ||
438 | static char *scrub_string; | |
439 | static char *scrub_string_end; | |
440 | ||
441 | static int | |
442 | scrub_from_string (from) | |
443 | char **from; | |
444 | { | |
445 | int size; | |
446 | ||
447 | *from = scrub_string; | |
448 | size = scrub_string_end - scrub_string; | |
449 | scrub_string = scrub_string_end; | |
450 | return size; | |
451 | } | |
452 | ||
fecd2382 RP |
453 | /* read_a_source_file() |
454 | * | |
455 | * We read the file, putting things into a web that | |
456 | * represents what we have been reading. | |
457 | */ | |
6efd877d KR |
458 | void |
459 | read_a_source_file (name) | |
460 | char *name; | |
fecd2382 | 461 | { |
f8701a3f | 462 | register char c; |
6efd877d | 463 | register char *s; /* string of symbol, '\0' appended */ |
f8701a3f | 464 | register int temp; |
6efd877d | 465 | pseudo_typeS *pop; |
f8701a3f | 466 | |
6efd877d | 467 | buffer = input_scrub_new_file (name); |
f8701a3f | 468 | |
6efd877d KR |
469 | listing_file (name); |
470 | listing_newline (""); | |
f8701a3f | 471 | |
6efd877d KR |
472 | while ((buffer_limit = input_scrub_next_buffer (&input_line_pointer)) != 0) |
473 | { /* We have another line to parse. */ | |
474 | know (buffer_limit[-1] == '\n'); /* Must have a sentinel. */ | |
9471a360 KR |
475 | contin: /* JF this goto is my fault I admit it. |
476 | Someone brave please re-write the whole | |
477 | input section here? Pleeze??? */ | |
6efd877d | 478 | while (input_line_pointer < buffer_limit) |
9471a360 KR |
479 | { |
480 | /* We have more of this buffer to parse. */ | |
f8701a3f SC |
481 | |
482 | /* | |
483 | * We now have input_line_pointer->1st char of next line. | |
484 | * If input_line_pointer [-1] == '\n' then we just | |
485 | * scanned another line: so bump line counters. | |
486 | */ | |
d2550c72 | 487 | if (is_end_of_line[(unsigned char) input_line_pointer[-1]]) |
6efd877d | 488 | { |
a2a5a4fa KR |
489 | #ifdef md_start_line_hook |
490 | md_start_line_hook (); | |
491 | #endif | |
492 | ||
385ce433 JL |
493 | if (input_line_pointer[-1] == '\n') |
494 | bump_line_counters (); | |
f8701a3f | 495 | |
7e047ac2 ILT |
496 | line_label = NULL; |
497 | ||
1356d77d ILT |
498 | if (flag_mri |
499 | #ifdef LABELS_WITHOUT_COLONS | |
500 | || 1 | |
501 | #endif | |
502 | ) | |
6efd877d | 503 | { |
1356d77d ILT |
504 | /* Text at the start of a line must be a label, we |
505 | run down and stick a colon in. */ | |
506 | if (is_name_beginner (*input_line_pointer)) | |
507 | { | |
508 | char *line_start = input_line_pointer; | |
7e047ac2 ILT |
509 | char c; |
510 | ||
511 | HANDLE_CONDITIONAL_ASSEMBLY (); | |
1356d77d | 512 | |
7e047ac2 ILT |
513 | c = get_symbol_end (); |
514 | ||
515 | /* In MRI mode, the EQU pseudoop must be | |
516 | handled specially. */ | |
517 | if (flag_mri) | |
1356d77d | 518 | { |
7e047ac2 ILT |
519 | char *rest = input_line_pointer + 1; |
520 | ||
521 | if (*rest == ':') | |
522 | ++rest; | |
523 | if (*rest == ' ' || *rest == '\t') | |
524 | ++rest; | |
525 | if ((strncasecmp (rest, "EQU", 3) == 0 | |
526 | || strncasecmp (rest, "SET", 3) == 0) | |
527 | && (rest[3] == ' ' || rest[3] == '\t')) | |
1356d77d | 528 | { |
7e047ac2 ILT |
529 | input_line_pointer = rest + 3; |
530 | equals (line_start); | |
531 | continue; | |
1356d77d ILT |
532 | } |
533 | } | |
6efd877d | 534 | |
7e047ac2 ILT |
535 | line_label = colon (line_start); |
536 | ||
1356d77d ILT |
537 | *input_line_pointer = c; |
538 | if (c == ':') | |
539 | input_line_pointer++; | |
540 | } | |
6efd877d | 541 | } |
9471a360 | 542 | } |
f8701a3f | 543 | |
f8701a3f SC |
544 | /* |
545 | * We are at the begining of a line, or similar place. | |
546 | * We expect a well-formed assembler statement. | |
547 | * A "symbol-name:" is a statement. | |
548 | * | |
549 | * Depending on what compiler is used, the order of these tests | |
550 | * may vary to catch most common case 1st. | |
551 | * Each test is independent of all other tests at the (top) level. | |
552 | * PLEASE make a compiler that doesn't use this assembler. | |
553 | * It is crufty to waste a compiler's time encoding things for this | |
554 | * assembler, which then wastes more time decoding it. | |
555 | * (And communicating via (linear) files is silly! | |
556 | * If you must pass stuff, please pass a tree!) | |
557 | */ | |
9471a360 KR |
558 | if ((c = *input_line_pointer++) == '\t' |
559 | || c == ' ' | |
560 | || c == '\f' | |
561 | || c == 0) | |
6efd877d KR |
562 | { |
563 | c = *input_line_pointer++; | |
564 | } | |
565 | know (c != ' '); /* No further leading whitespace. */ | |
566 | LISTING_NEWLINE (); | |
f8701a3f SC |
567 | /* |
568 | * C is the 1st significant character. | |
569 | * Input_line_pointer points after that character. | |
570 | */ | |
6efd877d | 571 | if (is_name_beginner (c)) |
6ef37255 KR |
572 | { |
573 | /* want user-defined label or pseudo/opcode */ | |
6efd877d KR |
574 | HANDLE_CONDITIONAL_ASSEMBLY (); |
575 | ||
f8701a3f | 576 | s = --input_line_pointer; |
6efd877d | 577 | c = get_symbol_end (); /* name's delimiter */ |
f8701a3f SC |
578 | /* |
579 | * C is character after symbol. | |
580 | * That character's place in the input line is now '\0'. | |
581 | * S points to the beginning of the symbol. | |
582 | * [In case of pseudo-op, s->'.'.] | |
583 | * Input_line_pointer->'\0' where c was. | |
584 | */ | |
9a7d824a | 585 | if (TC_START_LABEL(c, input_line_pointer)) |
6efd877d | 586 | { |
7e047ac2 ILT |
587 | if (flag_mri) |
588 | { | |
589 | char *rest = input_line_pointer + 1; | |
590 | ||
591 | /* In MRI mode, \tsym: set 0 is permitted. */ | |
592 | ||
593 | if (*rest == ':') | |
594 | ++rest; | |
595 | if (*rest == ' ' || *rest == '\t') | |
596 | ++rest; | |
597 | if ((strncasecmp (rest, "EQU", 3) == 0 | |
598 | || strncasecmp (rest, "SET", 3) == 0) | |
599 | && (rest[3] == ' ' || rest[3] == '\t')) | |
600 | { | |
601 | input_line_pointer = rest + 3; | |
602 | equals (s); | |
603 | continue; | |
604 | } | |
605 | } | |
606 | ||
607 | line_label = colon (s); /* user-defined label */ | |
6efd877d | 608 | *input_line_pointer++ = ':'; /* Put ':' back for error messages' sake. */ |
f8701a3f | 609 | /* Input_line_pointer->after ':'. */ |
6efd877d KR |
610 | SKIP_WHITESPACE (); |
611 | ||
f8701a3f | 612 | |
6efd877d | 613 | } |
4064305e SS |
614 | else if (c == '=' |
615 | || (input_line_pointer[1] == '=' | |
616 | #ifdef TC_EQUAL_IN_INSN | |
617 | && ! TC_EQUAL_IN_INSN (c, input_line_pointer) | |
618 | #endif | |
619 | )) | |
9c6d3f66 | 620 | { |
6efd877d KR |
621 | equals (s); |
622 | demand_empty_rest_of_line (); | |
623 | } | |
624 | else | |
625 | { /* expect pseudo-op or machine instruction */ | |
8ff6f40e ILT |
626 | pop = NULL; |
627 | ||
d4c8cbd8 JL |
628 | #define IGNORE_OPCODE_CASE |
629 | #ifdef IGNORE_OPCODE_CASE | |
630 | { | |
631 | char *s2 = s; | |
632 | while (*s2) | |
633 | { | |
634 | if (isupper (*s2)) | |
635 | *s2 = tolower (*s2); | |
636 | s2++; | |
637 | } | |
638 | } | |
639 | #endif | |
640 | ||
1356d77d | 641 | if (flag_mri |
8ff6f40e | 642 | #ifdef NO_PSEUDO_DOT |
1356d77d | 643 | || 1 |
8ff6f40e | 644 | #endif |
1356d77d ILT |
645 | ) |
646 | { | |
647 | /* The MRI assembler and the m88k use pseudo-ops | |
648 | without a period. */ | |
649 | pop = (pseudo_typeS *) hash_find (po_hash, s); | |
650 | if (pop != NULL && pop->poc_handler == NULL) | |
651 | pop = NULL; | |
652 | } | |
8ff6f40e | 653 | |
7e047ac2 ILT |
654 | if (pop != NULL |
655 | || (! flag_mri && *s == '.')) | |
6efd877d KR |
656 | { |
657 | /* | |
9471a360 KR |
658 | * PSEUDO - OP. |
659 | * | |
660 | * WARNING: c has next char, which may be end-of-line. | |
661 | * We lookup the pseudo-op table with s+1 because we | |
662 | * already know that the pseudo-op begins with a '.'. | |
663 | */ | |
6efd877d | 664 | |
8ff6f40e ILT |
665 | if (pop == NULL) |
666 | pop = (pseudo_typeS *) hash_find (po_hash, s + 1); | |
6efd877d | 667 | |
286cb27a ILT |
668 | /* In MRI mode, we may need to insert an |
669 | automatic alignment directive. What a hack | |
670 | this is. */ | |
671 | if (mri_pending_align | |
672 | && (pop == NULL | |
673 | || ! ((pop->poc_handler == cons | |
674 | && pop->poc_val == 1) | |
675 | || (pop->poc_handler == s_space | |
676 | && pop->poc_val == 1)))) | |
677 | { | |
678 | do_align (1, (char *) NULL); | |
679 | mri_pending_align = 0; | |
680 | } | |
681 | ||
6efd877d | 682 | /* Print the error msg now, while we still can */ |
8ff6f40e | 683 | if (pop == NULL) |
6efd877d KR |
684 | { |
685 | as_bad ("Unknown pseudo-op: `%s'", s); | |
f8701a3f | 686 | *input_line_pointer = c; |
6efd877d | 687 | s_ignore (0); |
46b81190 | 688 | continue; |
6efd877d KR |
689 | } |
690 | ||
691 | /* Put it back for error messages etc. */ | |
692 | *input_line_pointer = c; | |
9c6d3f66 KR |
693 | /* The following skip of whitespace is compulsory. |
694 | A well shaped space is sometimes all that separates | |
695 | keyword from operands. */ | |
6efd877d | 696 | if (c == ' ' || c == '\t') |
d4c8cbd8 | 697 | input_line_pointer++; |
6efd877d | 698 | /* |
9471a360 KR |
699 | * Input_line is restored. |
700 | * Input_line_pointer->1st non-blank char | |
701 | * after pseudo-operation. | |
702 | */ | |
46b81190 | 703 | (*pop->poc_handler) (pop->poc_val); |
e28c40d7 ILT |
704 | |
705 | /* If that was .end, just get out now. */ | |
706 | if (pop->poc_handler == s_end) | |
707 | goto quit; | |
6efd877d KR |
708 | } |
709 | else | |
6efd877d | 710 | { /* machine instruction */ |
4026c122 ILT |
711 | int inquote = 0; |
712 | ||
286cb27a ILT |
713 | if (mri_pending_align) |
714 | { | |
715 | do_align (1, (char *) NULL); | |
716 | mri_pending_align = 0; | |
717 | } | |
718 | ||
6efd877d KR |
719 | /* WARNING: c has char, which may be end-of-line. */ |
720 | /* Also: input_line_pointer->`\0` where c was. */ | |
721 | *input_line_pointer = c; | |
58d4951d | 722 | while (!is_end_of_line[(unsigned char) *input_line_pointer] |
4026c122 | 723 | || inquote |
4064305e SS |
724 | #ifdef TC_EOL_IN_INSN |
725 | || TC_EOL_IN_INSN (input_line_pointer) | |
726 | #endif | |
727 | ) | |
6efd877d | 728 | { |
4026c122 ILT |
729 | if (flag_mri && *input_line_pointer == '\'') |
730 | inquote = ! inquote; | |
6efd877d KR |
731 | input_line_pointer++; |
732 | } | |
f8701a3f | 733 | |
6efd877d KR |
734 | c = *input_line_pointer; |
735 | *input_line_pointer = '\0'; | |
f8701a3f | 736 | |
326d16ca KH |
737 | #ifdef OBJ_GENERATE_ASM_LINENO |
738 | if (generate_asm_lineno == 0) | |
739 | { | |
f10a96cb | 740 | if (ecoff_no_current_file ()) |
326d16ca KH |
741 | generate_asm_lineno = 1; |
742 | } | |
f10a96cb ILT |
743 | if (generate_asm_lineno == 1) |
744 | { | |
1b434ced ILT |
745 | unsigned int lineno; |
746 | char *s; | |
747 | ||
daad3bbf | 748 | as_where (&s, &lineno); |
326d16ca | 749 | OBJ_GENERATE_ASM_LINENO (s, lineno); |
f10a96cb | 750 | } |
daad3bbf KH |
751 | #endif |
752 | ||
7e047ac2 ILT |
753 | if (macro_defined) |
754 | { | |
755 | sb out; | |
756 | const char *err; | |
757 | ||
758 | if (check_macro (s, &out, '\0', &err)) | |
759 | { | |
760 | if (err != NULL) | |
761 | as_bad (err); | |
762 | *input_line_pointer++ = c; | |
763 | input_scrub_include_sb (&out, | |
764 | input_line_pointer); | |
765 | sb_kill (&out); | |
766 | buffer_limit = | |
767 | input_scrub_next_buffer (&input_line_pointer); | |
768 | continue; | |
769 | } | |
770 | } | |
771 | ||
6efd877d | 772 | md_assemble (s); /* Assemble 1 instruction. */ |
f8701a3f | 773 | |
6efd877d | 774 | *input_line_pointer++ = c; |
f8701a3f | 775 | |
d4c8cbd8 JL |
776 | /* We resume loop AFTER the end-of-line from |
777 | this instruction. */ | |
6efd877d | 778 | } /* if (*s=='.') */ |
6efd877d | 779 | } /* if c==':' */ |
f8701a3f | 780 | continue; |
6efd877d | 781 | } /* if (is_name_beginner(c) */ |
f8701a3f | 782 | |
f8701a3f | 783 | |
d4c8cbd8 | 784 | /* Empty statement? */ |
58d4951d | 785 | if (is_end_of_line[(unsigned char) c]) |
d4c8cbd8 | 786 | continue; |
6efd877d | 787 | |
9777b772 KR |
788 | if ((LOCAL_LABELS_DOLLAR || LOCAL_LABELS_FB) |
789 | && isdigit (c)) | |
d4c8cbd8 JL |
790 | { |
791 | /* local label ("4:") */ | |
6efd877d KR |
792 | char *backup = input_line_pointer; |
793 | ||
794 | HANDLE_CONDITIONAL_ASSEMBLY (); | |
795 | ||
796 | temp = c - '0'; | |
797 | ||
798 | while (isdigit (*input_line_pointer)) | |
799 | { | |
800 | temp = (temp * 10) + *input_line_pointer - '0'; | |
801 | ++input_line_pointer; | |
802 | } /* read the whole number */ | |
803 | ||
9777b772 KR |
804 | if (LOCAL_LABELS_DOLLAR |
805 | && *input_line_pointer == '$' | |
6efd877d KR |
806 | && *(input_line_pointer + 1) == ':') |
807 | { | |
808 | input_line_pointer += 2; | |
809 | ||
810 | if (dollar_label_defined (temp)) | |
811 | { | |
812 | as_fatal ("label \"%d$\" redefined", temp); | |
813 | } | |
814 | ||
815 | define_dollar_label (temp); | |
816 | colon (dollar_label_name (temp, 0)); | |
817 | continue; | |
818 | } | |
6efd877d | 819 | |
9777b772 KR |
820 | if (LOCAL_LABELS_FB |
821 | && *input_line_pointer++ == ':') | |
6efd877d KR |
822 | { |
823 | fb_label_instance_inc (temp); | |
824 | colon (fb_label_name (temp, 0)); | |
825 | continue; | |
826 | } | |
6efd877d KR |
827 | |
828 | input_line_pointer = backup; | |
829 | } /* local label ("4:") */ | |
f8701a3f | 830 | |
6efd877d KR |
831 | if (c && strchr (line_comment_chars, c)) |
832 | { /* Its a comment. Better say APP or NO_APP */ | |
f8701a3f SC |
833 | char *ends; |
834 | char *new_buf; | |
835 | char *new_tmp; | |
604633ae | 836 | unsigned int new_length; |
f8701a3f | 837 | char *tmp_buf = 0; |
6efd877d KR |
838 | |
839 | bump_line_counters (); | |
840 | s = input_line_pointer; | |
841 | if (strncmp (s, "APP\n", 4)) | |
842 | continue; /* We ignore it */ | |
843 | s += 4; | |
844 | ||
845 | ends = strstr (s, "#NO_APP\n"); | |
846 | ||
847 | if (!ends) | |
848 | { | |
604633ae ILT |
849 | unsigned int tmp_len; |
850 | unsigned int num; | |
6efd877d | 851 | |
f8701a3f SC |
852 | /* The end of the #APP wasn't in this buffer. We |
853 | keep reading in buffers until we find the #NO_APP | |
854 | that goes with this #APP There is one. The specs | |
855 | guarentee it. . . */ | |
6efd877d | 856 | tmp_len = buffer_limit - s; |
85825401 | 857 | tmp_buf = xmalloc (tmp_len + 1); |
4380166d | 858 | memcpy (tmp_buf, s, tmp_len); |
6efd877d KR |
859 | do |
860 | { | |
861 | new_tmp = input_scrub_next_buffer (&buffer); | |
f8701a3f | 862 | if (!new_tmp) |
6efd877d | 863 | break; |
f8701a3f | 864 | else |
6efd877d | 865 | buffer_limit = new_tmp; |
f8701a3f | 866 | input_line_pointer = buffer; |
6efd877d | 867 | ends = strstr (buffer, "#NO_APP\n"); |
f8701a3f | 868 | if (ends) |
6efd877d | 869 | num = ends - buffer; |
f8701a3f | 870 | else |
6efd877d KR |
871 | num = buffer_limit - buffer; |
872 | ||
873 | tmp_buf = xrealloc (tmp_buf, tmp_len + num); | |
9eb5f4b8 | 874 | memcpy (tmp_buf + tmp_len, buffer, num); |
6efd877d KR |
875 | tmp_len += num; |
876 | } | |
877 | while (!ends); | |
878 | ||
879 | input_line_pointer = ends ? ends + 8 : NULL; | |
880 | ||
881 | s = tmp_buf; | |
882 | ends = s + tmp_len; | |
883 | ||
884 | } | |
885 | else | |
886 | { | |
887 | input_line_pointer = ends + 8; | |
888 | } | |
6efd877d KR |
889 | |
890 | scrub_string = s; | |
86038ada ILT |
891 | scrub_string_end = ends; |
892 | ||
893 | new_length = ends - s; | |
894 | new_buf = (char *) xmalloc (new_length); | |
895 | new_tmp = new_buf; | |
6efd877d KR |
896 | for (;;) |
897 | { | |
86038ada ILT |
898 | int space; |
899 | int size; | |
f8701a3f | 900 | |
86038ada ILT |
901 | space = (new_buf + new_length) - new_tmp; |
902 | size = do_scrub_chars (scrub_from_string, new_tmp, space); | |
903 | ||
904 | if (size < space) | |
6efd877d | 905 | { |
86038ada ILT |
906 | new_tmp += size; |
907 | break; | |
f8701a3f | 908 | } |
86038ada ILT |
909 | |
910 | new_buf = xrealloc (new_buf, new_length + 100); | |
911 | new_tmp = new_buf + new_length; | |
912 | new_length += 100; | |
fecd2382 | 913 | } |
f8701a3f SC |
914 | |
915 | if (tmp_buf) | |
6efd877d KR |
916 | free (tmp_buf); |
917 | old_buffer = buffer; | |
918 | old_input = input_line_pointer; | |
919 | old_limit = buffer_limit; | |
920 | buffer = new_buf; | |
921 | input_line_pointer = new_buf; | |
922 | buffer_limit = new_tmp; | |
f8701a3f SC |
923 | continue; |
924 | } | |
925 | ||
6efd877d | 926 | HANDLE_CONDITIONAL_ASSEMBLY (); |
f8701a3f SC |
927 | |
928 | /* as_warn("Junk character %d.",c); Now done by ignore_rest */ | |
929 | input_line_pointer--; /* Report unknown char as ignored. */ | |
6efd877d KR |
930 | ignore_rest_of_line (); |
931 | } /* while (input_line_pointer<buffer_limit) */ | |
a2a5a4fa KR |
932 | |
933 | #ifdef md_after_pass_hook | |
934 | md_after_pass_hook (); | |
935 | #endif | |
936 | ||
6efd877d KR |
937 | if (old_buffer) |
938 | { | |
86038ada | 939 | free (buffer); |
6efd877d KR |
940 | bump_line_counters (); |
941 | if (old_input != 0) | |
942 | { | |
943 | buffer = old_buffer; | |
944 | input_line_pointer = old_input; | |
945 | buffer_limit = old_limit; | |
f8701a3f SC |
946 | old_buffer = 0; |
947 | goto contin; | |
948 | } | |
949 | } | |
6efd877d | 950 | } /* while (more buffers to scan) */ |
f8701a3f | 951 | |
e28c40d7 ILT |
952 | quit: |
953 | input_scrub_close (); /* Close the input file */ | |
4075afe1 | 954 | } |
fecd2382 | 955 | |
18c9057f ILT |
956 | /* For most MRI pseudo-ops, the line actually ends at the first |
957 | nonquoted space. This function looks for that point, stuffs a null | |
958 | in, and sets *STOPCP to the character that used to be there, and | |
959 | returns the location. */ | |
960 | ||
961 | char * | |
962 | mri_comment_field (stopcp) | |
963 | char *stopcp; | |
964 | { | |
965 | char *s; | |
966 | int inquote = 0; | |
967 | ||
968 | know (flag_mri); | |
969 | ||
970 | for (s = input_line_pointer; | |
971 | ((! is_end_of_line[(unsigned char) *s] && *s != ' ' && *s != '\t') | |
972 | || inquote); | |
973 | s++) | |
974 | { | |
975 | if (*s == '\'') | |
976 | inquote = ! inquote; | |
977 | } | |
978 | *stopcp = *s; | |
979 | *s = '\0'; | |
980 | return s; | |
981 | } | |
982 | ||
983 | /* Skip to the end of an MRI comment field. */ | |
984 | ||
985 | void | |
986 | mri_comment_end (stop, stopc) | |
987 | char *stop; | |
988 | int stopc; | |
989 | { | |
990 | know (flag_mri); | |
991 | ||
992 | input_line_pointer = stop; | |
993 | *stop = stopc; | |
994 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
995 | ++input_line_pointer; | |
996 | } | |
997 | ||
6efd877d | 998 | void |
604633ae ILT |
999 | s_abort (ignore) |
1000 | int ignore; | |
6efd877d KR |
1001 | { |
1002 | as_fatal (".abort detected. Abandoning ship."); | |
4075afe1 KR |
1003 | } |
1004 | ||
1005 | /* Guts of .align directive. */ | |
1006 | static void | |
1007 | do_align (n, fill) | |
1008 | int n; | |
1009 | char *fill; | |
1010 | { | |
1011 | #ifdef md_do_align | |
1012 | md_do_align (n, fill, just_record_alignment); | |
1013 | #endif | |
1014 | if (!fill) | |
1015 | { | |
1016 | /* @@ Fix this right for BFD! */ | |
1017 | static char zero; | |
1018 | static char nop_opcode = NOP_OPCODE; | |
1019 | ||
1020 | if (now_seg != data_section && now_seg != bss_section) | |
1021 | { | |
1022 | fill = &nop_opcode; | |
1023 | } | |
1024 | else | |
1025 | { | |
1026 | fill = &zero; | |
1027 | } | |
1028 | } | |
1029 | /* Only make a frag if we HAVE to. . . */ | |
1030 | if (n && !need_pass_2) | |
1031 | frag_align (n, *fill); | |
1032 | ||
c02fd8dc | 1033 | #ifdef md_do_align |
4075afe1 | 1034 | just_record_alignment: |
c02fd8dc ILT |
1035 | #endif |
1036 | ||
4075afe1 KR |
1037 | record_alignment (now_seg, n); |
1038 | } | |
fecd2382 RP |
1039 | |
1040 | /* For machines where ".align 4" means align to a 4 byte boundary. */ | |
6efd877d KR |
1041 | void |
1042 | s_align_bytes (arg) | |
1043 | int arg; | |
fecd2382 | 1044 | { |
6efd877d | 1045 | register unsigned int temp; |
4075afe1 | 1046 | char temp_fill; |
6efd877d KR |
1047 | unsigned int i = 0; |
1048 | unsigned long max_alignment = 1 << 15; | |
18c9057f ILT |
1049 | char *stop = NULL; |
1050 | char stopc; | |
1051 | ||
1052 | if (flag_mri) | |
1053 | stop = mri_comment_field (&stopc); | |
f8701a3f | 1054 | |
58d4951d | 1055 | if (is_end_of_line[(unsigned char) *input_line_pointer]) |
6efd877d KR |
1056 | temp = arg; /* Default value from pseudo-op table */ |
1057 | else | |
1058 | temp = get_absolute_expression (); | |
f8701a3f | 1059 | |
6efd877d KR |
1060 | if (temp > max_alignment) |
1061 | { | |
1062 | as_bad ("Alignment too large: %d. assumed.", temp = max_alignment); | |
f8701a3f SC |
1063 | } |
1064 | ||
4075afe1 KR |
1065 | /* For the sparc, `.align (1<<n)' actually means `.align n' so we |
1066 | have to convert it. */ | |
6efd877d KR |
1067 | if (temp != 0) |
1068 | { | |
1069 | for (i = 0; (temp & 1) == 0; temp >>= 1, ++i) | |
1070 | ; | |
f8701a3f | 1071 | } |
6efd877d KR |
1072 | if (temp != 1) |
1073 | as_bad ("Alignment not a power of 2"); | |
f8701a3f | 1074 | |
6efd877d KR |
1075 | temp = i; |
1076 | if (*input_line_pointer == ',') | |
1077 | { | |
1078 | input_line_pointer++; | |
1079 | temp_fill = get_absolute_expression (); | |
4075afe1 | 1080 | do_align (temp, &temp_fill); |
f8701a3f | 1081 | } |
6efd877d | 1082 | else |
4075afe1 | 1083 | do_align (temp, (char *) 0); |
49864cfa | 1084 | |
18c9057f ILT |
1085 | if (flag_mri) |
1086 | mri_comment_end (stop, stopc); | |
1087 | ||
6efd877d | 1088 | demand_empty_rest_of_line (); |
4075afe1 | 1089 | } |
fecd2382 RP |
1090 | |
1091 | /* For machines where ".align 4" means align to 2**4 boundary. */ | |
6efd877d | 1092 | void |
604633ae ILT |
1093 | s_align_ptwo (ignore) |
1094 | int ignore; | |
6efd877d KR |
1095 | { |
1096 | register int temp; | |
4075afe1 | 1097 | char temp_fill; |
6efd877d | 1098 | long max_alignment = 15; |
18c9057f ILT |
1099 | char *stop = NULL; |
1100 | char stopc; | |
1101 | ||
1102 | if (flag_mri) | |
1103 | stop = mri_comment_field (&stopc); | |
6efd877d KR |
1104 | |
1105 | temp = get_absolute_expression (); | |
1106 | if (temp > max_alignment) | |
1107 | as_bad ("Alignment too large: %d. assumed.", temp = max_alignment); | |
1108 | else if (temp < 0) | |
1109 | { | |
1110 | as_bad ("Alignment negative. 0 assumed."); | |
1111 | temp = 0; | |
1112 | } | |
1113 | if (*input_line_pointer == ',') | |
1114 | { | |
1115 | input_line_pointer++; | |
1116 | temp_fill = get_absolute_expression (); | |
4075afe1 | 1117 | do_align (temp, &temp_fill); |
6efd877d KR |
1118 | } |
1119 | else | |
4075afe1 | 1120 | do_align (temp, (char *) 0); |
6efd877d | 1121 | |
18c9057f ILT |
1122 | if (flag_mri) |
1123 | mri_comment_end (stop, stopc); | |
1124 | ||
6efd877d | 1125 | demand_empty_rest_of_line (); |
4075afe1 | 1126 | } |
6efd877d KR |
1127 | |
1128 | void | |
604633ae ILT |
1129 | s_comm (ignore) |
1130 | int ignore; | |
6efd877d KR |
1131 | { |
1132 | register char *name; | |
1133 | register char c; | |
1134 | register char *p; | |
58d4951d | 1135 | offsetT temp; |
6efd877d | 1136 | register symbolS *symbolP; |
18c9057f ILT |
1137 | char *stop = NULL; |
1138 | char stopc; | |
1139 | ||
1140 | if (flag_mri) | |
1141 | stop = mri_comment_field (&stopc); | |
6efd877d KR |
1142 | |
1143 | name = input_line_pointer; | |
1144 | c = get_symbol_end (); | |
1145 | /* just after name is now '\0' */ | |
1146 | p = input_line_pointer; | |
1147 | *p = c; | |
1148 | SKIP_WHITESPACE (); | |
1149 | if (*input_line_pointer != ',') | |
1150 | { | |
1151 | as_bad ("Expected comma after symbol-name: rest of line ignored."); | |
18c9057f ILT |
1152 | if (flag_mri) |
1153 | mri_comment_end (stop, stopc); | |
6efd877d KR |
1154 | ignore_rest_of_line (); |
1155 | return; | |
1156 | } | |
1157 | input_line_pointer++; /* skip ',' */ | |
1158 | if ((temp = get_absolute_expression ()) < 0) | |
1159 | { | |
58d4951d | 1160 | as_warn (".COMMon length (%ld.) <0! Ignored.", (long) temp); |
18c9057f ILT |
1161 | if (flag_mri) |
1162 | mri_comment_end (stop, stopc); | |
6efd877d KR |
1163 | ignore_rest_of_line (); |
1164 | return; | |
1165 | } | |
1166 | *p = 0; | |
1167 | symbolP = symbol_find_or_make (name); | |
1168 | *p = c; | |
1169 | if (S_IS_DEFINED (symbolP)) | |
1170 | { | |
6ef37255 KR |
1171 | as_bad ("Ignoring attempt to re-define symbol `%s'.", |
1172 | S_GET_NAME (symbolP)); | |
18c9057f ILT |
1173 | if (flag_mri) |
1174 | mri_comment_end (stop, stopc); | |
6efd877d KR |
1175 | ignore_rest_of_line (); |
1176 | return; | |
1177 | } | |
1178 | if (S_GET_VALUE (symbolP)) | |
1179 | { | |
58d4951d ILT |
1180 | if (S_GET_VALUE (symbolP) != (valueT) temp) |
1181 | as_bad ("Length of .comm \"%s\" is already %ld. Not changed to %ld.", | |
6efd877d | 1182 | S_GET_NAME (symbolP), |
58d4951d ILT |
1183 | (long) S_GET_VALUE (symbolP), |
1184 | (long) temp); | |
6efd877d KR |
1185 | } |
1186 | else | |
1187 | { | |
58d4951d | 1188 | S_SET_VALUE (symbolP, (valueT) temp); |
6efd877d KR |
1189 | S_SET_EXTERNAL (symbolP); |
1190 | } | |
9471a360 | 1191 | #ifdef OBJ_VMS |
def66e24 DM |
1192 | { |
1193 | extern int flag_one; | |
1194 | if ( (!temp) || !flag_one) | |
1195 | S_GET_OTHER(symbolP) = const_flag; | |
1196 | } | |
9471a360 | 1197 | #endif /* not OBJ_VMS */ |
6efd877d | 1198 | know (symbolP->sy_frag == &zero_address_frag); |
18c9057f ILT |
1199 | |
1200 | if (flag_mri) | |
1201 | mri_comment_end (stop, stopc); | |
1202 | ||
6efd877d KR |
1203 | demand_empty_rest_of_line (); |
1204 | } /* s_comm() */ | |
fecd2382 | 1205 | |
1356d77d ILT |
1206 | /* The MRI COMMON pseudo-op. We handle this by creating a common |
1207 | symbol with the appropriate name. We make s_space do the right | |
1208 | thing by increasing the size. */ | |
1209 | ||
1210 | void | |
1211 | s_mri_common (small) | |
1212 | int small; | |
1213 | { | |
1214 | char *name; | |
1215 | char c; | |
1216 | char *alc = NULL; | |
1217 | symbolS *sym; | |
1218 | offsetT align; | |
18c9057f ILT |
1219 | char *stop = NULL; |
1220 | char stopc; | |
1356d77d ILT |
1221 | |
1222 | if (! flag_mri) | |
1223 | { | |
1224 | s_comm (0); | |
1225 | return; | |
1226 | } | |
1227 | ||
18c9057f ILT |
1228 | stop = mri_comment_field (&stopc); |
1229 | ||
1356d77d ILT |
1230 | SKIP_WHITESPACE (); |
1231 | ||
1232 | name = input_line_pointer; | |
1233 | if (! isdigit ((unsigned char) *name)) | |
1234 | c = get_symbol_end (); | |
1235 | else | |
1236 | { | |
1237 | do | |
1238 | { | |
1239 | ++input_line_pointer; | |
1240 | } | |
1241 | while (isdigit ((unsigned char) *input_line_pointer)); | |
1242 | c = *input_line_pointer; | |
1243 | *input_line_pointer = '\0'; | |
1244 | ||
7e047ac2 | 1245 | if (line_label != NULL) |
1356d77d | 1246 | { |
7e047ac2 | 1247 | alc = (char *) xmalloc (strlen (S_GET_NAME (line_label)) |
1356d77d ILT |
1248 | + (input_line_pointer - name) |
1249 | + 1); | |
7e047ac2 | 1250 | sprintf (alc, "%s%s", name, S_GET_NAME (line_label)); |
1356d77d ILT |
1251 | name = alc; |
1252 | } | |
1253 | } | |
1254 | ||
1255 | sym = symbol_find_or_make (name); | |
1256 | *input_line_pointer = c; | |
1257 | if (alc != NULL) | |
1258 | free (alc); | |
1259 | ||
1260 | if (*input_line_pointer != ',') | |
1261 | align = 0; | |
1262 | else | |
1263 | { | |
1264 | ++input_line_pointer; | |
1265 | align = get_absolute_expression (); | |
1266 | } | |
1267 | ||
1268 | if (S_IS_DEFINED (sym)) | |
1269 | { | |
1270 | #if defined (S_IS_COMMON) || defined (BFD_ASSEMBLER) | |
1271 | if (! S_IS_COMMON (sym)) | |
1272 | #endif | |
1273 | { | |
1274 | as_bad ("attempt to re-define symbol `%s'", S_GET_NAME (sym)); | |
18c9057f | 1275 | mri_comment_end (stop, stopc); |
1356d77d ILT |
1276 | ignore_rest_of_line (); |
1277 | return; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | S_SET_EXTERNAL (sym); | |
1282 | mri_common_symbol = sym; | |
1283 | ||
1284 | #ifdef S_SET_ALIGN | |
1285 | if (align != 0) | |
1286 | S_SET_ALIGN (sym, align); | |
1287 | #endif | |
1288 | ||
7e047ac2 | 1289 | if (line_label != NULL) |
1356d77d | 1290 | { |
7e047ac2 ILT |
1291 | line_label->sy_value.X_op = O_symbol; |
1292 | line_label->sy_value.X_add_symbol = sym; | |
1293 | line_label->sy_value.X_add_number = S_GET_VALUE (sym); | |
1294 | line_label->sy_frag = &zero_address_frag; | |
1295 | S_SET_SEGMENT (line_label, expr_section); | |
1356d77d ILT |
1296 | } |
1297 | ||
1298 | /* FIXME: We just ignore the small argument, which distinguishes | |
1299 | COMMON and COMMON.S. I don't know what we can do about it. */ | |
1300 | ||
1301 | /* Ignore the type and hptype. */ | |
1302 | if (*input_line_pointer == ',') | |
1303 | input_line_pointer += 2; | |
1304 | if (*input_line_pointer == ',') | |
1305 | input_line_pointer += 2; | |
18c9057f ILT |
1306 | |
1307 | mri_comment_end (stop, stopc); | |
1308 | ||
1356d77d ILT |
1309 | demand_empty_rest_of_line (); |
1310 | } | |
1311 | ||
fecd2382 | 1312 | void |
604633ae ILT |
1313 | s_data (ignore) |
1314 | int ignore; | |
fecd2382 | 1315 | { |
ffffc8fb | 1316 | segT section; |
6efd877d | 1317 | register int temp; |
f8701a3f | 1318 | |
6efd877d | 1319 | temp = get_absolute_expression (); |
def66e24 | 1320 | if (flag_readonly_data_in_text) |
ffffc8fb ILT |
1321 | { |
1322 | section = text_section; | |
1323 | temp += 1000; | |
1324 | } | |
1325 | else | |
1326 | section = data_section; | |
1327 | ||
ffffc8fb | 1328 | subseg_set (section, (subsegT) temp); |
f8701a3f | 1329 | |
9471a360 | 1330 | #ifdef OBJ_VMS |
6efd877d | 1331 | const_flag = 0; |
fecd2382 | 1332 | #endif |
6efd877d | 1333 | demand_empty_rest_of_line (); |
fecd2382 RP |
1334 | } |
1335 | ||
9a7d824a | 1336 | /* Handle the .appfile pseudo-op. This is automatically generated by |
86038ada ILT |
1337 | do_scrub_chars when a preprocessor # line comment is seen with a |
1338 | file name. This default definition may be overridden by the object | |
1339 | or CPU specific pseudo-ops. This function is also the default | |
1340 | definition for .file; the APPFILE argument is 1 for .appfile, 0 for | |
1341 | .file. */ | |
9a7d824a | 1342 | |
6efd877d | 1343 | void |
9a7d824a ILT |
1344 | s_app_file (appfile) |
1345 | int appfile; | |
6efd877d KR |
1346 | { |
1347 | register char *s; | |
1348 | int length; | |
f8701a3f | 1349 | |
6efd877d KR |
1350 | /* Some assemblers tolerate immediately following '"' */ |
1351 | if ((s = demand_copy_string (&length)) != 0) | |
1352 | { | |
9a7d824a ILT |
1353 | /* If this is a fake .appfile, a fake newline was inserted into |
1354 | the buffer. Passing -2 to new_logical_line tells it to | |
1355 | account for it. */ | |
1356 | new_logical_line (s, appfile ? -2 : -1); | |
6efd877d | 1357 | demand_empty_rest_of_line (); |
9a7d824a ILT |
1358 | #ifdef LISTING |
1359 | if (listing) | |
1360 | listing_source_file (s); | |
1361 | #endif | |
6efd877d | 1362 | } |
2209b19c KR |
1363 | #ifdef obj_app_file |
1364 | obj_app_file (s); | |
40324362 KR |
1365 | #endif |
1366 | } | |
fecd2382 | 1367 | |
9a7d824a | 1368 | /* Handle the .appline pseudo-op. This is automatically generated by |
86038ada ILT |
1369 | do_scrub_chars when a preprocessor # line comment is seen. This |
1370 | default definition may be overridden by the object or CPU specific | |
1371 | pseudo-ops. */ | |
9a7d824a ILT |
1372 | |
1373 | void | |
604633ae ILT |
1374 | s_app_line (ignore) |
1375 | int ignore; | |
9a7d824a ILT |
1376 | { |
1377 | int l; | |
1378 | ||
1379 | /* The given number is that of the next line. */ | |
1380 | l = get_absolute_expression () - 1; | |
931a8fab KR |
1381 | if (l < 0) |
1382 | /* Some of the back ends can't deal with non-positive line numbers. | |
1383 | Besides, it's silly. */ | |
1384 | as_warn ("Line numbers must be positive; line number %d rejected.", l+1); | |
1385 | else | |
1386 | { | |
1387 | new_logical_line ((char *) NULL, l); | |
9a7d824a | 1388 | #ifdef LISTING |
931a8fab KR |
1389 | if (listing) |
1390 | listing_source_line (l); | |
9a7d824a | 1391 | #endif |
931a8fab | 1392 | } |
9a7d824a ILT |
1393 | demand_empty_rest_of_line (); |
1394 | } | |
1395 | ||
e28c40d7 ILT |
1396 | /* Handle the .end pseudo-op. Actually, the real work is done in |
1397 | read_a_source_file. */ | |
1398 | ||
1399 | void | |
1400 | s_end (ignore) | |
1401 | int ignore; | |
1402 | { | |
1403 | if (flag_mri) | |
1404 | { | |
1405 | /* The MRI assembler permits the start symbol to follow .end, | |
1406 | but we don't support that. */ | |
1407 | SKIP_WHITESPACE (); | |
18c9057f ILT |
1408 | if (! is_end_of_line[(unsigned char) *input_line_pointer] |
1409 | && *input_line_pointer != '*' | |
1410 | && *input_line_pointer != '!') | |
e28c40d7 ILT |
1411 | as_warn ("start address not supported"); |
1412 | } | |
1413 | } | |
1414 | ||
1415 | /* Handle the MRI fail pseudo-op. */ | |
1416 | ||
1417 | void | |
1418 | s_fail (ignore) | |
1419 | int ignore; | |
1420 | { | |
1421 | offsetT temp; | |
18c9057f ILT |
1422 | char *stop = NULL; |
1423 | char stopc; | |
1424 | ||
1425 | if (flag_mri) | |
1426 | stop = mri_comment_field (&stopc); | |
e28c40d7 ILT |
1427 | |
1428 | temp = get_absolute_expression (); | |
1429 | if (temp >= 500) | |
1430 | as_warn (".fail %ld encountered", (long) temp); | |
1431 | else | |
1432 | as_bad (".fail %ld encountered", (long) temp); | |
18c9057f ILT |
1433 | |
1434 | if (flag_mri) | |
1435 | mri_comment_end (stop, stopc); | |
1436 | ||
e28c40d7 ILT |
1437 | demand_empty_rest_of_line (); |
1438 | } | |
1439 | ||
6efd877d | 1440 | void |
604633ae ILT |
1441 | s_fill (ignore) |
1442 | int ignore; | |
6efd877d KR |
1443 | { |
1444 | long temp_repeat = 0; | |
1445 | long temp_size = 1; | |
1446 | register long temp_fill = 0; | |
1447 | char *p; | |
f8701a3f | 1448 | |
7c2d4011 | 1449 | |
6efd877d KR |
1450 | temp_repeat = get_absolute_expression (); |
1451 | if (*input_line_pointer == ',') | |
1452 | { | |
1453 | input_line_pointer++; | |
1454 | temp_size = get_absolute_expression (); | |
1455 | if (*input_line_pointer == ',') | |
7c2d4011 SC |
1456 | { |
1457 | input_line_pointer++; | |
6efd877d | 1458 | temp_fill = get_absolute_expression (); |
fecd2382 | 1459 | } |
6efd877d | 1460 | } |
c8863a58 | 1461 | /* This is to be compatible with BSD 4.2 AS, not for any rational reason. */ |
fecd2382 | 1462 | #define BSD_FILL_SIZE_CROCK_8 (8) |
6efd877d KR |
1463 | if (temp_size > BSD_FILL_SIZE_CROCK_8) |
1464 | { | |
1465 | as_warn (".fill size clamped to %d.", BSD_FILL_SIZE_CROCK_8); | |
1466 | temp_size = BSD_FILL_SIZE_CROCK_8; | |
1467 | } | |
1468 | if (temp_size < 0) | |
1469 | { | |
1470 | as_warn ("Size negative: .fill ignored."); | |
1471 | temp_size = 0; | |
1472 | } | |
1473 | else if (temp_repeat <= 0) | |
1474 | { | |
1475 | as_warn ("Repeat < 0, .fill ignored"); | |
1476 | temp_size = 0; | |
1477 | } | |
7fd3560a | 1478 | |
6efd877d KR |
1479 | if (temp_size && !need_pass_2) |
1480 | { | |
1481 | p = frag_var (rs_fill, (int) temp_size, (int) temp_size, (relax_substateT) 0, (symbolS *) 0, temp_repeat, (char *) 0); | |
604633ae | 1482 | memset (p, 0, (unsigned int) temp_size); |
c8863a58 KR |
1483 | /* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX |
1484 | * flavoured AS. The following bizzare behaviour is to be | |
1485 | * compatible with above. I guess they tried to take up to 8 | |
1486 | * bytes from a 4-byte expression and they forgot to sign | |
1487 | * extend. Un*x Sux. */ | |
fecd2382 | 1488 | #define BSD_FILL_SIZE_CROCK_4 (4) |
604633ae | 1489 | md_number_to_chars (p, (valueT) temp_fill, |
c8863a58 KR |
1490 | (temp_size > BSD_FILL_SIZE_CROCK_4 |
1491 | ? BSD_FILL_SIZE_CROCK_4 | |
1492 | : (int) temp_size)); | |
1493 | /* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes) | |
1494 | * but emits no error message because it seems a legal thing to do. | |
1495 | * It is a degenerate case of .fill but could be emitted by a compiler. | |
1496 | */ | |
6efd877d | 1497 | } |
6efd877d | 1498 | demand_empty_rest_of_line (); |
f8701a3f SC |
1499 | } |
1500 | ||
6efd877d | 1501 | void |
604633ae ILT |
1502 | s_globl (ignore) |
1503 | int ignore; | |
6efd877d | 1504 | { |
40324362 KR |
1505 | char *name; |
1506 | int c; | |
1507 | symbolS *symbolP; | |
18c9057f ILT |
1508 | char *stop = NULL; |
1509 | char stopc; | |
1510 | ||
1511 | if (flag_mri) | |
1512 | stop = mri_comment_field (&stopc); | |
fecd2382 | 1513 | |
6efd877d KR |
1514 | do |
1515 | { | |
1516 | name = input_line_pointer; | |
1517 | c = get_symbol_end (); | |
1518 | symbolP = symbol_find_or_make (name); | |
1519 | *input_line_pointer = c; | |
1520 | SKIP_WHITESPACE (); | |
1521 | S_SET_EXTERNAL (symbolP); | |
1522 | if (c == ',') | |
1523 | { | |
1524 | input_line_pointer++; | |
1525 | SKIP_WHITESPACE (); | |
1526 | if (*input_line_pointer == '\n') | |
1527 | c = '\n'; | |
1528 | } | |
1529 | } | |
1530 | while (c == ','); | |
18c9057f ILT |
1531 | |
1532 | if (flag_mri) | |
1533 | mri_comment_end (stop, stopc); | |
1534 | ||
6efd877d | 1535 | demand_empty_rest_of_line (); |
40324362 | 1536 | } |
6efd877d | 1537 | |
7e047ac2 ILT |
1538 | /* Handle the MRI IRP and IRPC pseudo-ops. */ |
1539 | ||
1540 | void | |
1541 | s_irp (irpc) | |
1542 | int irpc; | |
1543 | { | |
1544 | char *file; | |
1545 | unsigned int line; | |
1546 | sb s; | |
1547 | const char *err; | |
1548 | sb out; | |
1549 | ||
1550 | as_where (&file, &line); | |
1551 | ||
1552 | sb_new (&s); | |
1553 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1554 | sb_add_char (&s, *input_line_pointer++); | |
1555 | ||
1556 | sb_new (&out); | |
1557 | ||
1558 | err = expand_irp (irpc, 0, &s, &out, get_line_sb, '\0'); | |
1559 | if (err != NULL) | |
1560 | as_bad_where (file, line, "%s", err); | |
1561 | ||
1562 | sb_kill (&s); | |
1563 | ||
1564 | input_scrub_include_sb (&out, input_line_pointer); | |
1565 | sb_kill (&out); | |
1566 | buffer_limit = input_scrub_next_buffer (&input_line_pointer); | |
1567 | } | |
1568 | ||
6efd877d KR |
1569 | void |
1570 | s_lcomm (needs_align) | |
c8863a58 KR |
1571 | /* 1 if this was a ".bss" directive, which may require a 3rd argument |
1572 | (alignment); 0 if it was an ".lcomm" (2 args only) */ | |
1573 | int needs_align; | |
fecd2382 | 1574 | { |
6efd877d KR |
1575 | register char *name; |
1576 | register char c; | |
1577 | register char *p; | |
1578 | register int temp; | |
1579 | register symbolS *symbolP; | |
9a7d824a ILT |
1580 | segT current_seg = now_seg; |
1581 | subsegT current_subseg = now_subseg; | |
6efd877d KR |
1582 | const int max_alignment = 15; |
1583 | int align = 0; | |
9a7d824a | 1584 | segT bss_seg = bss_section; |
6efd877d KR |
1585 | |
1586 | name = input_line_pointer; | |
1587 | c = get_symbol_end (); | |
1588 | p = input_line_pointer; | |
1589 | *p = c; | |
1590 | SKIP_WHITESPACE (); | |
46b81190 ILT |
1591 | |
1592 | /* Accept an optional comma after the name. The comma used to be | |
1593 | required, but Irix 5 cc does not generate it. */ | |
1594 | if (*input_line_pointer == ',') | |
6efd877d | 1595 | { |
46b81190 ILT |
1596 | ++input_line_pointer; |
1597 | SKIP_WHITESPACE (); | |
6efd877d | 1598 | } |
f8701a3f | 1599 | |
6efd877d KR |
1600 | if (*input_line_pointer == '\n') |
1601 | { | |
1602 | as_bad ("Missing size expression"); | |
1603 | return; | |
1604 | } | |
f8701a3f | 1605 | |
6efd877d KR |
1606 | if ((temp = get_absolute_expression ()) < 0) |
1607 | { | |
1608 | as_warn ("BSS length (%d.) <0! Ignored.", temp); | |
1609 | ignore_rest_of_line (); | |
1610 | return; | |
1611 | } | |
f8701a3f | 1612 | |
2ef7731d | 1613 | #if defined (TC_MIPS) || defined (TC_ALPHA) |
a2a5a4fa KR |
1614 | if (OUTPUT_FLAVOR == bfd_target_ecoff_flavour |
1615 | || OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
46b81190 | 1616 | { |
a2a5a4fa KR |
1617 | /* For MIPS and Alpha ECOFF or ELF, small objects are put in .sbss. */ |
1618 | if (temp <= bfd_get_gp_size (stdoutput)) | |
1619 | { | |
1620 | bss_seg = subseg_new (".sbss", 1); | |
1621 | seg_info (bss_seg)->bss = 1; | |
1622 | } | |
46b81190 | 1623 | } |
9a7d824a | 1624 | #endif |
ede7bc1c SC |
1625 | if (!needs_align) |
1626 | { | |
1627 | /* FIXME. This needs to be machine independent. */ | |
9d90491e ILT |
1628 | if (temp >= 8) |
1629 | align = 3; | |
1630 | else if (temp >= 4) | |
ede7bc1c SC |
1631 | align = 2; |
1632 | else if (temp >= 2) | |
1633 | align = 1; | |
1634 | else | |
c71a604a | 1635 | align = 0; |
ede7bc1c SC |
1636 | |
1637 | record_alignment(bss_seg, align); | |
1638 | } | |
9a7d824a | 1639 | |
6efd877d KR |
1640 | if (needs_align) |
1641 | { | |
1642 | align = 0; | |
1643 | SKIP_WHITESPACE (); | |
1644 | if (*input_line_pointer != ',') | |
1645 | { | |
1646 | as_bad ("Expected comma after size"); | |
1647 | ignore_rest_of_line (); | |
1648 | return; | |
1649 | } | |
1650 | input_line_pointer++; | |
1651 | SKIP_WHITESPACE (); | |
1652 | if (*input_line_pointer == '\n') | |
1653 | { | |
1654 | as_bad ("Missing alignment"); | |
1655 | return; | |
1656 | } | |
1657 | align = get_absolute_expression (); | |
1658 | if (align > max_alignment) | |
1659 | { | |
1660 | align = max_alignment; | |
1661 | as_warn ("Alignment too large: %d. assumed.", align); | |
1662 | } | |
1663 | else if (align < 0) | |
1664 | { | |
1665 | align = 0; | |
1666 | as_warn ("Alignment negative. 0 assumed."); | |
1667 | } | |
9a7d824a | 1668 | record_alignment (bss_seg, align); |
6efd877d | 1669 | } /* if needs align */ |
4075afe1 KR |
1670 | else |
1671 | { | |
1672 | /* Assume some objects may require alignment on some systems. */ | |
1673 | #ifdef TC_ALPHA | |
1674 | if (temp > 1) | |
1675 | { | |
1676 | align = ffs (temp) - 1; | |
1677 | if (temp % (1 << align)) | |
1678 | abort (); | |
1679 | } | |
1680 | #endif | |
1681 | } | |
f8701a3f | 1682 | |
6efd877d KR |
1683 | *p = 0; |
1684 | symbolP = symbol_find_or_make (name); | |
1685 | *p = c; | |
f8701a3f | 1686 | |
6efd877d | 1687 | if ( |
fecd2382 | 1688 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) |
6efd877d KR |
1689 | S_GET_OTHER (symbolP) == 0 && |
1690 | S_GET_DESC (symbolP) == 0 && | |
fecd2382 | 1691 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
9a7d824a | 1692 | (S_GET_SEGMENT (symbolP) == bss_seg |
6efd877d KR |
1693 | || (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0))) |
1694 | { | |
604633ae | 1695 | char *pfrag; |
85825401 | 1696 | |
9a7d824a | 1697 | subseg_set (bss_seg, 1); |
85825401 ILT |
1698 | |
1699 | if (align) | |
1700 | frag_align (align, 0); | |
1701 | /* detach from old frag */ | |
9a7d824a | 1702 | if (S_GET_SEGMENT (symbolP) == bss_seg) |
85825401 ILT |
1703 | symbolP->sy_frag->fr_symbol = NULL; |
1704 | ||
1705 | symbolP->sy_frag = frag_now; | |
604633ae ILT |
1706 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP, |
1707 | temp, (char *)0); | |
1708 | *pfrag = 0; | |
f8701a3f | 1709 | |
9a7d824a | 1710 | S_SET_SEGMENT (symbolP, bss_seg); |
85825401 | 1711 | |
fecd2382 | 1712 | #ifdef OBJ_COFF |
6efd877d | 1713 | /* The symbol may already have been created with a preceding |
c8863a58 KR |
1714 | ".globl" directive -- be careful not to step on storage class |
1715 | in that case. Otherwise, set it to static. */ | |
6efd877d KR |
1716 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) |
1717 | { | |
1718 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
fecd2382 | 1719 | } |
6efd877d | 1720 | #endif /* OBJ_COFF */ |
6efd877d KR |
1721 | } |
1722 | else | |
6ef37255 KR |
1723 | as_bad ("Ignoring attempt to re-define symbol `%s'.", |
1724 | S_GET_NAME (symbolP)); | |
f8701a3f | 1725 | |
9a7d824a | 1726 | subseg_set (current_seg, current_subseg); |
9a7d824a ILT |
1727 | |
1728 | demand_empty_rest_of_line (); | |
6efd877d | 1729 | } /* s_lcomm() */ |
fecd2382 | 1730 | |
6efd877d | 1731 | void |
604633ae ILT |
1732 | s_lsym (ignore) |
1733 | int ignore; | |
6efd877d KR |
1734 | { |
1735 | register char *name; | |
1736 | register char c; | |
1737 | register char *p; | |
6efd877d KR |
1738 | expressionS exp; |
1739 | register symbolS *symbolP; | |
1740 | ||
1741 | /* we permit ANY defined expression: BSD4.2 demands constants */ | |
1742 | name = input_line_pointer; | |
1743 | c = get_symbol_end (); | |
1744 | p = input_line_pointer; | |
1745 | *p = c; | |
1746 | SKIP_WHITESPACE (); | |
1747 | if (*input_line_pointer != ',') | |
1748 | { | |
1749 | *p = 0; | |
1750 | as_bad ("Expected comma after name \"%s\"", name); | |
1751 | *p = c; | |
1752 | ignore_rest_of_line (); | |
1753 | return; | |
1754 | } | |
1755 | input_line_pointer++; | |
b31f2abb KR |
1756 | expression (&exp); |
1757 | if (exp.X_op != O_constant | |
1758 | && exp.X_op != O_register) | |
1759 | { | |
1760 | as_bad ("bad expression"); | |
1761 | ignore_rest_of_line (); | |
1762 | return; | |
1763 | } | |
6efd877d KR |
1764 | *p = 0; |
1765 | symbolP = symbol_find_or_make (name); | |
f8701a3f | 1766 | |
c8863a58 KR |
1767 | /* FIXME-SOON I pulled a (&& symbolP->sy_other == 0 && |
1768 | symbolP->sy_desc == 0) out of this test because coff doesn't have | |
1769 | those fields, and I can't see when they'd ever be tripped. I | |
1770 | don't think I understand why they were here so I may have | |
1771 | introduced a bug. As recently as 1.37 didn't have this test | |
1772 | anyway. xoxorich. */ | |
f8701a3f | 1773 | |
9471a360 | 1774 | if (S_GET_SEGMENT (symbolP) == undefined_section |
6efd877d KR |
1775 | && S_GET_VALUE (symbolP) == 0) |
1776 | { | |
c8863a58 KR |
1777 | /* The name might be an undefined .global symbol; be sure to |
1778 | keep the "external" bit. */ | |
b31f2abb KR |
1779 | S_SET_SEGMENT (symbolP, |
1780 | (exp.X_op == O_constant | |
1781 | ? absolute_section | |
1782 | : reg_section)); | |
1783 | S_SET_VALUE (symbolP, (valueT) exp.X_add_number); | |
6efd877d KR |
1784 | } |
1785 | else | |
1786 | { | |
1787 | as_bad ("Symbol %s already defined", name); | |
1788 | } | |
1789 | *p = c; | |
1790 | demand_empty_rest_of_line (); | |
1791 | } /* s_lsym() */ | |
1792 | ||
7e047ac2 ILT |
1793 | /* Read a line into an sb. */ |
1794 | ||
1795 | static int | |
1796 | get_line_sb (line) | |
1797 | sb *line; | |
1798 | { | |
1799 | if (input_line_pointer >= buffer_limit) | |
1800 | { | |
1801 | buffer_limit = input_scrub_next_buffer (&input_line_pointer); | |
1802 | if (buffer_limit == 0) | |
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1807 | sb_add_char (line, *input_line_pointer++); | |
1808 | while (is_end_of_line[(unsigned char) *input_line_pointer]) | |
1809 | { | |
1810 | if (*input_line_pointer == '\n') | |
1811 | { | |
1812 | bump_line_counters (); | |
1813 | LISTING_NEWLINE (); | |
1814 | } | |
1815 | ++input_line_pointer; | |
1816 | } | |
1817 | return 1; | |
1818 | } | |
1819 | ||
1820 | /* Define a macro. This is an interface to macro.c, which is shared | |
1821 | between gas and gasp. */ | |
1822 | ||
1823 | void | |
1824 | s_macro (ignore) | |
1825 | int ignore; | |
1826 | { | |
1827 | char *file; | |
1828 | unsigned int line; | |
1829 | sb s; | |
1830 | sb label; | |
1831 | const char *err; | |
1832 | ||
1833 | as_where (&file, &line); | |
1834 | ||
1835 | sb_new (&s); | |
1836 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1837 | sb_add_char (&s, *input_line_pointer++); | |
1838 | ||
1839 | sb_new (&label); | |
1840 | if (line_label != NULL) | |
1841 | sb_add_string (&label, S_GET_NAME (line_label)); | |
1842 | ||
1843 | demand_empty_rest_of_line (); | |
1844 | ||
1845 | err = define_macro (0, &s, &label, get_line_sb); | |
1846 | if (err != NULL) | |
1847 | as_bad_where (file, line, "%s", err); | |
1848 | else | |
1849 | { | |
1850 | if (line_label != NULL) | |
1851 | { | |
1852 | S_SET_SEGMENT (line_label, undefined_section); | |
1853 | S_SET_VALUE (line_label, 0); | |
1854 | line_label->sy_frag = &zero_address_frag; | |
1855 | } | |
1856 | } | |
1857 | ||
1858 | sb_kill (&s); | |
1859 | } | |
1860 | ||
1861 | /* Handle the .mexit pseudo-op, which immediately exits a macro | |
1862 | expansion. */ | |
1863 | ||
1864 | void | |
1865 | s_mexit (ignore) | |
1866 | int ignore; | |
1867 | { | |
1868 | buffer_limit = input_scrub_next_buffer (&input_line_pointer); | |
1869 | } | |
1870 | ||
e28c40d7 ILT |
1871 | /* Handle changing the location counter. */ |
1872 | ||
1873 | static void | |
1874 | do_org (segment, exp, fill) | |
1875 | segT segment; | |
1876 | expressionS *exp; | |
1877 | int fill; | |
1878 | { | |
1879 | if (segment != now_seg && segment != absolute_section) | |
1880 | as_bad ("invalid segment \"%s\"; segment \"%s\" assumed", | |
1881 | segment_name (segment), segment_name (now_seg)); | |
1882 | ||
1883 | if (now_seg == absolute_section) | |
1884 | { | |
1885 | if (fill != 0) | |
1886 | as_warn ("ignoring fill value in absolute section"); | |
1887 | if (exp->X_op != O_constant) | |
1888 | { | |
1889 | as_bad ("only constant offsets supported in absolute section"); | |
1890 | exp->X_add_number = 0; | |
1891 | } | |
1892 | abs_section_offset = exp->X_add_number; | |
1893 | } | |
1894 | else | |
1895 | { | |
1896 | char *p; | |
1897 | ||
1898 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp->X_add_symbol, | |
1899 | exp->X_add_number, (char *) NULL); | |
1900 | *p = fill; | |
1901 | } | |
1902 | } | |
1903 | ||
6efd877d | 1904 | void |
604633ae ILT |
1905 | s_org (ignore) |
1906 | int ignore; | |
6efd877d KR |
1907 | { |
1908 | register segT segment; | |
1909 | expressionS exp; | |
1910 | register long temp_fill; | |
e28c40d7 | 1911 | |
69e077f3 ILT |
1912 | /* The MRI assembler has a different meaning for .org. It means to |
1913 | create an absolute section at a given address. We can't support | |
1914 | that--use a linker script instead. */ | |
1915 | if (flag_mri) | |
1916 | { | |
1917 | as_bad ("MRI style ORG pseudo-op not supported"); | |
1918 | ignore_rest_of_line (); | |
1919 | return; | |
1920 | } | |
1921 | ||
9471a360 KR |
1922 | /* Don't believe the documentation of BSD 4.2 AS. There is no such |
1923 | thing as a sub-segment-relative origin. Any absolute origin is | |
1924 | given a warning, then assumed to be segment-relative. Any | |
1925 | segmented origin expression ("foo+42") had better be in the right | |
1926 | segment or the .org is ignored. | |
1927 | ||
1928 | BSD 4.2 AS warns if you try to .org backwards. We cannot because | |
1929 | we never know sub-segment sizes when we are reading code. BSD | |
1930 | will crash trying to emit negative numbers of filler bytes in | |
1931 | certain .orgs. We don't crash, but see as-write for that code. | |
1932 | ||
1933 | Don't make frag if need_pass_2==1. */ | |
6efd877d KR |
1934 | segment = get_known_segmented_expression (&exp); |
1935 | if (*input_line_pointer == ',') | |
1936 | { | |
1937 | input_line_pointer++; | |
1938 | temp_fill = get_absolute_expression (); | |
1939 | } | |
1940 | else | |
1941 | temp_fill = 0; | |
e28c40d7 | 1942 | |
6efd877d | 1943 | if (!need_pass_2) |
e28c40d7 ILT |
1944 | do_org (segment, &exp, temp_fill); |
1945 | ||
6efd877d KR |
1946 | demand_empty_rest_of_line (); |
1947 | } /* s_org() */ | |
1948 | ||
e14994d9 ILT |
1949 | /* Handle parsing for the MRI SECT/SECTION pseudo-op. This should be |
1950 | called by the obj-format routine which handles section changing | |
1951 | when in MRI mode. It will create a new section, and return it. It | |
1952 | will set *TYPE to the section type: one of '\0' (unspecified), 'C' | |
1953 | (code), 'D' (data), 'M' (mixed), or 'R' (romable). If | |
1954 | BFD_ASSEMBLER is defined, the flags will be set in the section. */ | |
1955 | ||
1956 | void | |
1957 | s_mri_sect (type) | |
1958 | char *type; | |
1959 | { | |
1960 | char *name; | |
1961 | char c; | |
1962 | segT seg; | |
1963 | ||
1964 | SKIP_WHITESPACE (); | |
1965 | ||
1966 | name = input_line_pointer; | |
1967 | if (! isdigit ((unsigned char) *name)) | |
1968 | c = get_symbol_end (); | |
1969 | else | |
1970 | { | |
1971 | do | |
1972 | { | |
1973 | ++input_line_pointer; | |
1974 | } | |
1975 | while (isdigit ((unsigned char) *input_line_pointer)); | |
1976 | c = *input_line_pointer; | |
1977 | *input_line_pointer = '\0'; | |
1978 | } | |
1979 | ||
1980 | name = strdup (name); | |
1981 | if (name == NULL) | |
1982 | as_fatal ("virtual memory exhausted"); | |
1983 | ||
1984 | *input_line_pointer = c; | |
1985 | ||
1986 | seg = subseg_new (name, 0); | |
1987 | ||
1988 | if (*input_line_pointer == ',') | |
1989 | { | |
1990 | int align; | |
1991 | ||
1992 | ++input_line_pointer; | |
1993 | align = get_absolute_expression (); | |
1994 | record_alignment (seg, align); | |
1995 | } | |
1996 | ||
1997 | *type = '\0'; | |
1998 | if (*input_line_pointer == ',') | |
1999 | { | |
2000 | c = *++input_line_pointer; | |
2001 | c = toupper ((unsigned char) c); | |
2002 | if (c == 'C' || c == 'D' || c == 'M' || c == 'R') | |
2003 | *type = c; | |
2004 | else | |
2005 | as_bad ("unrecognized section type"); | |
2006 | ++input_line_pointer; | |
2007 | ||
2008 | #ifdef BFD_ASSEMBLER | |
2009 | { | |
2010 | flagword flags; | |
2011 | ||
2012 | flags = SEC_NO_FLAGS; | |
ca232972 | 2013 | if (*type == 'C') |
e14994d9 | 2014 | flags = SEC_CODE; |
ca232972 | 2015 | else if (*type == 'D') |
e14994d9 | 2016 | flags = SEC_DATA; |
ca232972 | 2017 | else if (*type == 'R') |
e14994d9 ILT |
2018 | flags = SEC_ROM; |
2019 | if (flags != SEC_NO_FLAGS) | |
2020 | { | |
2021 | if (! bfd_set_section_flags (stdoutput, seg, flags)) | |
2022 | as_warn ("error setting flags for \"%s\": %s", | |
ca232972 | 2023 | bfd_section_name (stdoutput, seg), |
e14994d9 ILT |
2024 | bfd_errmsg (bfd_get_error ())); |
2025 | } | |
2026 | } | |
2027 | #endif | |
2028 | } | |
2029 | ||
2030 | /* Ignore the HP type. */ | |
2031 | if (*input_line_pointer == ',') | |
2032 | input_line_pointer += 2; | |
2033 | ||
2034 | demand_empty_rest_of_line (); | |
2035 | } | |
2036 | ||
7e047ac2 ILT |
2037 | /* Handle the .rept pseudo-op. */ |
2038 | ||
2039 | void | |
2040 | s_rept (ignore) | |
2041 | int ignore; | |
2042 | { | |
2043 | int count; | |
2044 | sb one; | |
2045 | sb many; | |
2046 | ||
2047 | count = get_absolute_expression (); | |
2048 | ||
2049 | sb_new (&one); | |
2050 | if (! buffer_and_nest ("REPT", "ENDR", &one, get_line_sb)) | |
2051 | { | |
2052 | as_bad ("rept without endr"); | |
2053 | return; | |
2054 | } | |
2055 | ||
2056 | sb_new (&many); | |
2057 | while (count-- > 0) | |
2058 | sb_add_sb (&many, &one); | |
2059 | ||
2060 | sb_kill (&one); | |
2061 | ||
2062 | input_scrub_include_sb (&many, input_line_pointer); | |
2063 | sb_kill (&many); | |
2064 | buffer_limit = input_scrub_next_buffer (&input_line_pointer); | |
2065 | } | |
2066 | ||
6efd877d | 2067 | void |
604633ae ILT |
2068 | s_set (ignore) |
2069 | int ignore; | |
6efd877d KR |
2070 | { |
2071 | register char *name; | |
2072 | register char delim; | |
2073 | register char *end_name; | |
2074 | register symbolS *symbolP; | |
2075 | ||
2076 | /* | |
c8863a58 KR |
2077 | * Especial apologies for the random logic: |
2078 | * this just grew, and could be parsed much more simply! | |
2079 | * Dean in haste. | |
2080 | */ | |
6efd877d KR |
2081 | name = input_line_pointer; |
2082 | delim = get_symbol_end (); | |
2083 | end_name = input_line_pointer; | |
2084 | *end_name = delim; | |
2085 | SKIP_WHITESPACE (); | |
f8701a3f | 2086 | |
6efd877d KR |
2087 | if (*input_line_pointer != ',') |
2088 | { | |
2089 | *end_name = 0; | |
2090 | as_bad ("Expected comma after name \"%s\"", name); | |
2091 | *end_name = delim; | |
2092 | ignore_rest_of_line (); | |
2093 | return; | |
2094 | } | |
2095 | ||
2096 | input_line_pointer++; | |
2097 | *end_name = 0; | |
2098 | ||
2099 | if (name[0] == '.' && name[1] == '\0') | |
2100 | { | |
2101 | /* Turn '. = mumble' into a .org mumble */ | |
2102 | register segT segment; | |
2103 | expressionS exp; | |
6efd877d KR |
2104 | |
2105 | segment = get_known_segmented_expression (&exp); | |
f8701a3f | 2106 | |
6efd877d | 2107 | if (!need_pass_2) |
e28c40d7 | 2108 | do_org (segment, &exp, 0); |
6efd877d KR |
2109 | |
2110 | *end_name = delim; | |
2111 | return; | |
2112 | } | |
2113 | ||
2114 | if ((symbolP = symbol_find (name)) == NULL | |
2115 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
2116 | { | |
9471a360 | 2117 | symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag); |
fecd2382 | 2118 | #ifdef OBJ_COFF |
6efd877d KR |
2119 | /* "set" symbols are local unless otherwise specified. */ |
2120 | SF_SET_LOCAL (symbolP); | |
fecd2382 | 2121 | #endif /* OBJ_COFF */ |
f8701a3f | 2122 | |
6efd877d | 2123 | } /* make a new symbol */ |
f8701a3f | 2124 | |
6efd877d | 2125 | symbol_table_insert (symbolP); |
f8701a3f | 2126 | |
6efd877d KR |
2127 | *end_name = delim; |
2128 | pseudo_set (symbolP); | |
2129 | demand_empty_rest_of_line (); | |
2130 | } /* s_set() */ | |
fecd2382 | 2131 | |
6efd877d KR |
2132 | void |
2133 | s_space (mult) | |
2134 | int mult; | |
b53ccaac | 2135 | { |
cd3b81bd | 2136 | expressionS exp; |
931a8fab | 2137 | long temp_fill; |
cd3b81bd | 2138 | char *p = 0; |
3dce804d ILT |
2139 | char *stop = NULL; |
2140 | char stopc; | |
6efd877d | 2141 | |
a2a5a4fa KR |
2142 | #ifdef md_flush_pending_output |
2143 | md_flush_pending_output (); | |
2144 | #endif | |
2145 | ||
3dce804d | 2146 | if (flag_mri) |
18c9057f | 2147 | stop = mri_comment_field (&stopc); |
3dce804d | 2148 | |
6efd877d | 2149 | /* Just like .fill, but temp_size = 1 */ |
cd3b81bd | 2150 | expression (&exp); |
931a8fab | 2151 | if (exp.X_op == O_constant) |
6efd877d | 2152 | { |
cd3b81bd KR |
2153 | long repeat; |
2154 | ||
2155 | repeat = exp.X_add_number; | |
2156 | if (mult) | |
2157 | repeat *= mult; | |
2158 | if (repeat <= 0) | |
2159 | { | |
4026c122 ILT |
2160 | if (! flag_mri || repeat < 0) |
2161 | as_warn (".space repeat count is %s, ignored", | |
2162 | repeat ? "negative" : "zero"); | |
3dce804d | 2163 | goto getout; |
cd3b81bd KR |
2164 | } |
2165 | ||
e28c40d7 ILT |
2166 | /* If we are in the absolute section, just bump the offset. */ |
2167 | if (now_seg == absolute_section) | |
2168 | { | |
2169 | abs_section_offset += repeat; | |
3dce804d | 2170 | goto getout; |
e28c40d7 ILT |
2171 | } |
2172 | ||
1356d77d ILT |
2173 | /* If we are secretly in an MRI common section, then creating |
2174 | space just increases the size of the common symbol. */ | |
2175 | if (mri_common_symbol != NULL) | |
2176 | { | |
2177 | S_SET_VALUE (mri_common_symbol, | |
2178 | S_GET_VALUE (mri_common_symbol) + repeat); | |
3dce804d | 2179 | goto getout; |
1356d77d ILT |
2180 | } |
2181 | ||
cd3b81bd KR |
2182 | if (!need_pass_2) |
2183 | p = frag_var (rs_fill, 1, 1, (relax_substateT) 0, (symbolS *) 0, | |
931a8fab | 2184 | repeat, (char *) 0); |
6efd877d KR |
2185 | } |
2186 | else | |
2187 | { | |
e28c40d7 ILT |
2188 | if (now_seg == absolute_section) |
2189 | { | |
2190 | as_bad ("space allocation too complex in absolute section"); | |
2191 | subseg_set (text_section, 0); | |
2192 | } | |
1356d77d ILT |
2193 | if (mri_common_symbol != NULL) |
2194 | { | |
2195 | as_bad ("space allocation too complex in common section"); | |
2196 | mri_common_symbol = NULL; | |
2197 | } | |
cd3b81bd KR |
2198 | if (!need_pass_2) |
2199 | p = frag_var (rs_space, 1, 1, (relax_substateT) 0, | |
2200 | make_expr_symbol (&exp), 0L, (char *) 0); | |
6efd877d | 2201 | } |
931a8fab KR |
2202 | SKIP_WHITESPACE (); |
2203 | if (*input_line_pointer == ',') | |
6efd877d | 2204 | { |
931a8fab | 2205 | input_line_pointer++; |
cd3b81bd | 2206 | temp_fill = get_absolute_expression (); |
6efd877d | 2207 | } |
cd3b81bd | 2208 | else |
6efd877d | 2209 | { |
cd3b81bd | 2210 | temp_fill = 0; |
6efd877d | 2211 | } |
cd3b81bd | 2212 | if (p) |
6efd877d | 2213 | { |
6efd877d KR |
2214 | *p = temp_fill; |
2215 | } | |
3dce804d ILT |
2216 | |
2217 | getout: | |
2218 | if (flag_mri) | |
18c9057f | 2219 | mri_comment_end (stop, stopc); |
3dce804d | 2220 | |
6efd877d | 2221 | demand_empty_rest_of_line (); |
cd3b81bd | 2222 | } |
fecd2382 | 2223 | |
e28c40d7 ILT |
2224 | /* This is like s_space, but the value is a floating point number with |
2225 | the given precision. This is for the MRI dcb.s pseudo-op and | |
2226 | friends. */ | |
2227 | ||
2228 | void | |
2229 | s_float_space (float_type) | |
2230 | int float_type; | |
2231 | { | |
2232 | offsetT count; | |
2233 | int flen; | |
2234 | char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT]; | |
18c9057f ILT |
2235 | char *stop = NULL; |
2236 | char stopc; | |
2237 | ||
2238 | if (flag_mri) | |
2239 | stop = mri_comment_field (&stopc); | |
e28c40d7 ILT |
2240 | |
2241 | count = get_absolute_expression (); | |
2242 | ||
2243 | SKIP_WHITESPACE (); | |
2244 | if (*input_line_pointer != ',') | |
2245 | { | |
2246 | as_bad ("missing value"); | |
18c9057f ILT |
2247 | if (flag_mri) |
2248 | mri_comment_end (stop, stopc); | |
e28c40d7 ILT |
2249 | ignore_rest_of_line (); |
2250 | return; | |
2251 | } | |
2252 | ||
2253 | ++input_line_pointer; | |
2254 | ||
2255 | SKIP_WHITESPACE (); | |
2256 | ||
2257 | /* Skip any 0{letter} that may be present. Don't even check if the | |
2258 | * letter is legal. */ | |
2259 | if (input_line_pointer[0] == '0' && isalpha (input_line_pointer[1])) | |
2260 | input_line_pointer += 2; | |
2261 | ||
2262 | /* Accept :xxxx, where the x's are hex digits, for a floating point | |
2263 | with the exact digits specified. */ | |
2264 | if (input_line_pointer[0] == ':') | |
2265 | { | |
2266 | flen = hex_float (float_type, temp); | |
2267 | if (flen < 0) | |
2268 | { | |
18c9057f ILT |
2269 | if (flag_mri) |
2270 | mri_comment_end (stop, stopc); | |
e28c40d7 ILT |
2271 | ignore_rest_of_line (); |
2272 | return; | |
2273 | } | |
2274 | } | |
2275 | else | |
2276 | { | |
2277 | char *err; | |
2278 | ||
2279 | err = md_atof (float_type, temp, &flen); | |
2280 | know (flen <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT); | |
2281 | know (flen > 0); | |
2282 | if (err) | |
2283 | { | |
2284 | as_bad ("Bad floating literal: %s", err); | |
18c9057f ILT |
2285 | if (flag_mri) |
2286 | mri_comment_end (stop, stopc); | |
e28c40d7 ILT |
2287 | ignore_rest_of_line (); |
2288 | return; | |
2289 | } | |
2290 | } | |
2291 | ||
2292 | while (--count >= 0) | |
2293 | { | |
2294 | char *p; | |
2295 | ||
2296 | p = frag_more (flen); | |
2297 | memcpy (p, temp, (unsigned int) flen); | |
2298 | } | |
2299 | ||
18c9057f ILT |
2300 | if (flag_mri) |
2301 | mri_comment_end (stop, stopc); | |
2302 | ||
e28c40d7 ILT |
2303 | demand_empty_rest_of_line (); |
2304 | } | |
2305 | ||
2306 | /* Handle the .struct pseudo-op, as found in MIPS assemblers. */ | |
2307 | ||
2308 | void | |
2309 | s_struct (ignore) | |
2310 | int ignore; | |
2311 | { | |
18c9057f ILT |
2312 | char *stop = NULL; |
2313 | char stopc; | |
2314 | ||
2315 | if (flag_mri) | |
2316 | stop = mri_comment_field (&stopc); | |
e28c40d7 ILT |
2317 | abs_section_offset = get_absolute_expression (); |
2318 | subseg_set (absolute_section, 0); | |
18c9057f ILT |
2319 | if (flag_mri) |
2320 | mri_comment_end (stop, stopc); | |
e28c40d7 ILT |
2321 | demand_empty_rest_of_line (); |
2322 | } | |
2323 | ||
fecd2382 | 2324 | void |
604633ae ILT |
2325 | s_text (ignore) |
2326 | int ignore; | |
fecd2382 | 2327 | { |
6efd877d | 2328 | register int temp; |
f8701a3f | 2329 | |
6efd877d | 2330 | temp = get_absolute_expression (); |
9471a360 | 2331 | subseg_set (text_section, (subsegT) temp); |
6efd877d | 2332 | demand_empty_rest_of_line (); |
80d80c64 KR |
2333 | #ifdef OBJ_VMS |
2334 | const_flag &= ~IN_DEFAULT_SECTION; | |
2335 | #endif | |
6efd877d | 2336 | } /* s_text() */ |
fecd2382 | 2337 | \f |
6efd877d | 2338 | |
6efd877d KR |
2339 | void |
2340 | demand_empty_rest_of_line () | |
2341 | { | |
2342 | SKIP_WHITESPACE (); | |
58d4951d | 2343 | if (is_end_of_line[(unsigned char) *input_line_pointer]) |
6efd877d KR |
2344 | { |
2345 | input_line_pointer++; | |
2346 | } | |
2347 | else | |
2348 | { | |
2349 | ignore_rest_of_line (); | |
2350 | } | |
2351 | /* Return having already swallowed end-of-line. */ | |
2352 | } /* Return pointing just after end-of-line. */ | |
fecd2382 RP |
2353 | |
2354 | void | |
6efd877d | 2355 | ignore_rest_of_line () /* For suspect lines: gives warning. */ |
fecd2382 | 2356 | { |
58d4951d | 2357 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
f8701a3f | 2358 | { |
6efd877d KR |
2359 | if (isprint (*input_line_pointer)) |
2360 | as_bad ("Rest of line ignored. First ignored character is `%c'.", | |
f8701a3f SC |
2361 | *input_line_pointer); |
2362 | else | |
6efd877d | 2363 | as_bad ("Rest of line ignored. First ignored character valued 0x%x.", |
f8701a3f SC |
2364 | *input_line_pointer); |
2365 | while (input_line_pointer < buffer_limit | |
58d4951d | 2366 | && !is_end_of_line[(unsigned char) *input_line_pointer]) |
f8701a3f | 2367 | { |
6efd877d | 2368 | input_line_pointer++; |
f8701a3f SC |
2369 | } |
2370 | } | |
6efd877d | 2371 | input_line_pointer++; /* Return pointing just after end-of-line. */ |
58d4951d | 2372 | know (is_end_of_line[(unsigned char) input_line_pointer[-1]]); |
fecd2382 RP |
2373 | } |
2374 | ||
2375 | /* | |
2376 | * pseudo_set() | |
2377 | * | |
2378 | * In: Pointer to a symbol. | |
2379 | * Input_line_pointer->expression. | |
2380 | * | |
2381 | * Out: Input_line_pointer->just after any whitespace after expression. | |
2382 | * Tried to set symbol to value of expression. | |
2383 | * Will change symbols type, value, and frag; | |
fecd2382 RP |
2384 | */ |
2385 | void | |
f8701a3f | 2386 | pseudo_set (symbolP) |
6efd877d | 2387 | symbolS *symbolP; |
fecd2382 | 2388 | { |
6efd877d | 2389 | expressionS exp; |
daad3bbf | 2390 | #if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER) |
f8701a3f | 2391 | int ext; |
fecd2382 | 2392 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
f8701a3f | 2393 | |
6efd877d | 2394 | know (symbolP); /* NULL pointer is logic error. */ |
daad3bbf | 2395 | #if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER) |
6efd877d | 2396 | ext = S_IS_EXTERNAL (symbolP); |
fecd2382 | 2397 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
f8701a3f | 2398 | |
5ac34ac3 | 2399 | (void) expression (&exp); |
f8701a3f | 2400 | |
5ac34ac3 ILT |
2401 | if (exp.X_op == O_illegal) |
2402 | as_bad ("illegal expression; zero assumed"); | |
2403 | else if (exp.X_op == O_absent) | |
2404 | as_bad ("missing expression; zero assumed"); | |
2405 | else if (exp.X_op == O_big) | |
2406 | as_bad ("%s number invalid; zero assumed", | |
2407 | exp.X_add_number > 0 ? "bignum" : "floating point"); | |
2408 | else if (exp.X_op == O_subtract | |
2409 | && (S_GET_SEGMENT (exp.X_add_symbol) | |
2410 | == S_GET_SEGMENT (exp.X_op_symbol)) | |
2411 | && SEG_NORMAL (S_GET_SEGMENT (exp.X_add_symbol)) | |
2412 | && exp.X_add_symbol->sy_frag == exp.X_op_symbol->sy_frag) | |
9471a360 | 2413 | { |
5ac34ac3 ILT |
2414 | exp.X_op = O_constant; |
2415 | exp.X_add_number = (S_GET_VALUE (exp.X_add_symbol) | |
2416 | - S_GET_VALUE (exp.X_op_symbol)); | |
9471a360 | 2417 | } |
5ac34ac3 ILT |
2418 | |
2419 | switch (exp.X_op) | |
9471a360 | 2420 | { |
5ac34ac3 ILT |
2421 | case O_illegal: |
2422 | case O_absent: | |
2423 | case O_big: | |
2424 | exp.X_add_number = 0; | |
2425 | /* Fall through. */ | |
2426 | case O_constant: | |
9471a360 | 2427 | S_SET_SEGMENT (symbolP, absolute_section); |
daad3bbf | 2428 | #if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER) |
5ac34ac3 ILT |
2429 | if (ext) |
2430 | S_SET_EXTERNAL (symbolP); | |
6efd877d | 2431 | else |
6efd877d | 2432 | S_CLEAR_EXTERNAL (symbolP); |
fecd2382 | 2433 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
604633ae | 2434 | S_SET_VALUE (symbolP, (valueT) exp.X_add_number); |
6efd877d | 2435 | symbolP->sy_frag = &zero_address_frag; |
5ac34ac3 | 2436 | break; |
f8701a3f | 2437 | |
5ac34ac3 ILT |
2438 | case O_register: |
2439 | S_SET_SEGMENT (symbolP, reg_section); | |
604633ae | 2440 | S_SET_VALUE (symbolP, (valueT) exp.X_add_number); |
5ac34ac3 ILT |
2441 | symbolP->sy_frag = &zero_address_frag; |
2442 | break; | |
2443 | ||
2444 | case O_symbol: | |
ef198870 KR |
2445 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section |
2446 | || exp.X_add_number != 0) | |
5ac34ac3 | 2447 | symbolP->sy_value = exp; |
6efd877d KR |
2448 | else |
2449 | { | |
80d80c64 KR |
2450 | symbolS *s = exp.X_add_symbol; |
2451 | ||
2452 | S_SET_SEGMENT (symbolP, S_GET_SEGMENT (s)); | |
daad3bbf | 2453 | #if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER) |
5ac34ac3 ILT |
2454 | if (ext) |
2455 | S_SET_EXTERNAL (symbolP); | |
2456 | else | |
2457 | S_CLEAR_EXTERNAL (symbolP); | |
fecd2382 | 2458 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
5ac34ac3 | 2459 | S_SET_VALUE (symbolP, |
80d80c64 KR |
2460 | exp.X_add_number + S_GET_VALUE (s)); |
2461 | symbolP->sy_frag = s->sy_frag; | |
ef198870 | 2462 | copy_symbol_attributes (symbolP, s); |
5ac34ac3 ILT |
2463 | } |
2464 | break; | |
f8701a3f | 2465 | |
5ac34ac3 ILT |
2466 | default: |
2467 | /* The value is some complex expression. | |
2468 | FIXME: Should we set the segment to anything? */ | |
2469 | symbolP->sy_value = exp; | |
2470 | break; | |
f8701a3f | 2471 | } |
fecd2382 RP |
2472 | } |
2473 | \f | |
2474 | /* | |
2475 | * cons() | |
2476 | * | |
2477 | * CONStruct more frag of .bytes, or .words etc. | |
2478 | * Should need_pass_2 be 1 then emit no frag(s). | |
80aab579 | 2479 | * This understands EXPRESSIONS. |
fecd2382 RP |
2480 | * |
2481 | * Bug (?) | |
2482 | * | |
2483 | * This has a split personality. We use expression() to read the | |
2484 | * value. We can detect if the value won't fit in a byte or word. | |
2485 | * But we can't detect if expression() discarded significant digits | |
2486 | * in the case of a long. Not worth the crocks required to fix it. | |
2487 | */ | |
2488 | ||
40324362 KR |
2489 | /* Select a parser for cons expressions. */ |
2490 | ||
2491 | /* Some targets need to parse the expression in various fancy ways. | |
2492 | You can define TC_PARSE_CONS_EXPRESSION to do whatever you like | |
2493 | (for example, the HPPA does this). Otherwise, you can define | |
2494 | BITFIELD_CONS_EXPRESSIONS to permit bitfields to be specified, or | |
2495 | REPEAT_CONS_EXPRESSIONS to permit repeat counts. If none of these | |
2496 | are defined, which is the normal case, then only simple expressions | |
2497 | are permitted. */ | |
2498 | ||
1356d77d ILT |
2499 | static void |
2500 | parse_mri_cons PARAMS ((expressionS *exp, unsigned int nbytes)); | |
2501 | ||
40324362 KR |
2502 | #ifndef TC_PARSE_CONS_EXPRESSION |
2503 | #ifdef BITFIELD_CONS_EXPRESSIONS | |
2504 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_bitfield_cons (EXP, NBYTES) | |
2505 | static void | |
2506 | parse_bitfield_cons PARAMS ((expressionS *exp, unsigned int nbytes)); | |
2507 | #endif | |
40324362 KR |
2508 | #ifdef REPEAT_CONS_EXPRESSIONS |
2509 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_repeat_cons (EXP, NBYTES) | |
2510 | static void | |
2511 | parse_repeat_cons PARAMS ((expressionS *exp, unsigned int nbytes)); | |
2512 | #endif | |
2513 | ||
2514 | /* If we haven't gotten one yet, just call expression. */ | |
2515 | #ifndef TC_PARSE_CONS_EXPRESSION | |
2516 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) expression (EXP) | |
2517 | #endif | |
2518 | #endif | |
2519 | ||
6efd877d KR |
2520 | /* worker to do .byte etc statements */ |
2521 | /* clobbers input_line_pointer, checks */ | |
2522 | /* end-of-line. */ | |
86038ada ILT |
2523 | static void |
2524 | cons_worker (nbytes, rva) | |
604633ae | 2525 | register int nbytes; /* 1=.byte, 2=.word, 4=.long */ |
86038ada | 2526 | int rva; |
fecd2382 | 2527 | { |
286cb27a | 2528 | int c; |
6efd877d | 2529 | expressionS exp; |
86038ada | 2530 | char *stop = NULL; |
3dce804d | 2531 | char stopc; |
f8701a3f | 2532 | |
a2a5a4fa KR |
2533 | #ifdef md_flush_pending_output |
2534 | md_flush_pending_output (); | |
2535 | #endif | |
2536 | ||
18c9057f ILT |
2537 | if (flag_mri) |
2538 | stop = mri_comment_field (&stopc); | |
2539 | ||
40324362 | 2540 | if (is_it_end_of_statement ()) |
6efd877d | 2541 | { |
18c9057f | 2542 | mri_comment_end (stop, stopc); |
40324362 KR |
2543 | demand_empty_rest_of_line (); |
2544 | return; | |
6efd877d | 2545 | } |
40324362 | 2546 | |
286cb27a | 2547 | c = 0; |
40324362 | 2548 | do |
6efd877d | 2549 | { |
86038ada ILT |
2550 | if (rva) |
2551 | { | |
2552 | /* If this is an .rva pseudoop then stick | |
2553 | an extra reloc in for this word. */ | |
2554 | int reloc; | |
2555 | char *p = frag_more (0); | |
2556 | exp.X_op = O_absent; | |
2557 | ||
2558 | #ifdef BFD_ASSEMBLER | |
2559 | reloc = BFD_RELOC_RVA; | |
94a73122 ILT |
2560 | #else |
2561 | #ifdef TC_RVA_RELOC | |
86038ada ILT |
2562 | reloc = TC_RVA_RELOC; |
2563 | #else | |
2564 | abort(); | |
94a73122 | 2565 | #endif |
86038ada ILT |
2566 | #endif |
2567 | fix_new_exp (frag_now, p - frag_now->fr_literal, | |
2568 | nbytes, &exp, 0, reloc); | |
2569 | ||
2570 | } | |
1356d77d ILT |
2571 | if (flag_mri) |
2572 | parse_mri_cons (&exp, (unsigned int) nbytes); | |
2573 | else | |
2574 | TC_PARSE_CONS_EXPRESSION (&exp, (unsigned int) nbytes); | |
86038ada | 2575 | emit_expr (&exp, (unsigned int) nbytes); |
286cb27a | 2576 | ++c; |
40324362 | 2577 | } |
18c9057f | 2578 | while (*input_line_pointer++ == ','); |
40324362 | 2579 | |
286cb27a ILT |
2580 | /* In MRI mode, after an odd number of bytes, we must align to an |
2581 | even word boundary, unless the next instruction is a dc.b, ds.b | |
2582 | or dcb.b. */ | |
2583 | if (flag_mri && nbytes == 1 && (c & 1) != 0) | |
2584 | mri_pending_align = 1; | |
2585 | ||
40324362 | 2586 | input_line_pointer--; /* Put terminator back into stream. */ |
86038ada ILT |
2587 | |
2588 | if (flag_mri) | |
18c9057f | 2589 | mri_comment_end (stop, stopc); |
86038ada | 2590 | |
40324362 | 2591 | demand_empty_rest_of_line (); |
30d3a445 | 2592 | } |
f8701a3f | 2593 | |
86038ada ILT |
2594 | |
2595 | void | |
2596 | cons (size) | |
2597 | int size; | |
2598 | { | |
2599 | cons_worker (size, 0); | |
2600 | } | |
2601 | ||
2602 | void | |
2603 | s_rva (size) | |
2604 | int size; | |
2605 | { | |
2606 | cons_worker (size, 1); | |
2607 | } | |
2608 | ||
2609 | ||
40324362 KR |
2610 | /* Put the contents of expression EXP into the object file using |
2611 | NBYTES bytes. If need_pass_2 is 1, this does nothing. */ | |
f8701a3f | 2612 | |
40324362 KR |
2613 | void |
2614 | emit_expr (exp, nbytes) | |
2615 | expressionS *exp; | |
2616 | unsigned int nbytes; | |
2617 | { | |
5ac34ac3 | 2618 | operatorT op; |
40324362 | 2619 | register char *p; |
80aab579 | 2620 | valueT extra_digit = 0; |
f8701a3f | 2621 | |
40324362 KR |
2622 | /* Don't do anything if we are going to make another pass. */ |
2623 | if (need_pass_2) | |
2624 | return; | |
2625 | ||
5ac34ac3 | 2626 | op = exp->X_op; |
40324362 | 2627 | |
e28c40d7 ILT |
2628 | /* Allow `.word 0' in the absolute section. */ |
2629 | if (now_seg == absolute_section) | |
2630 | { | |
2631 | if (op != O_constant || exp->X_add_number != 0) | |
2632 | as_bad ("attempt to store value in absolute section"); | |
2633 | abs_section_offset += nbytes; | |
2634 | return; | |
2635 | } | |
2636 | ||
80aab579 ILT |
2637 | /* Handle a negative bignum. */ |
2638 | if (op == O_uminus | |
2639 | && exp->X_add_number == 0 | |
2640 | && exp->X_add_symbol->sy_value.X_op == O_big | |
2641 | && exp->X_add_symbol->sy_value.X_add_number > 0) | |
2642 | { | |
2643 | int i; | |
2644 | unsigned long carry; | |
2645 | ||
2646 | exp = &exp->X_add_symbol->sy_value; | |
2647 | ||
2648 | /* Negate the bignum: one's complement each digit and add 1. */ | |
2649 | carry = 1; | |
2650 | for (i = 0; i < exp->X_add_number; i++) | |
2651 | { | |
2652 | unsigned long next; | |
2653 | ||
2654 | next = (((~ (generic_bignum[i] & LITTLENUM_MASK)) | |
2655 | & LITTLENUM_MASK) | |
2656 | + carry); | |
2657 | generic_bignum[i] = next & LITTLENUM_MASK; | |
2658 | carry = next >> LITTLENUM_NUMBER_OF_BITS; | |
2659 | } | |
2660 | ||
2661 | /* We can ignore any carry out, because it will be handled by | |
2662 | extra_digit if it is needed. */ | |
2663 | ||
2664 | extra_digit = (valueT) -1; | |
2665 | op = O_big; | |
2666 | } | |
2667 | ||
5ac34ac3 | 2668 | if (op == O_absent || op == O_illegal) |
6efd877d | 2669 | { |
5ac34ac3 ILT |
2670 | as_warn ("zero assumed for missing expression"); |
2671 | exp->X_add_number = 0; | |
2672 | op = O_constant; | |
6efd877d | 2673 | } |
80aab579 | 2674 | else if (op == O_big && exp->X_add_number <= 0) |
6efd877d | 2675 | { |
80aab579 | 2676 | as_bad ("floating point number invalid; zero assumed"); |
40324362 | 2677 | exp->X_add_number = 0; |
5ac34ac3 | 2678 | op = O_constant; |
40324362 | 2679 | } |
5ac34ac3 | 2680 | else if (op == O_register) |
6efd877d | 2681 | { |
5ac34ac3 ILT |
2682 | as_warn ("register value used as expression"); |
2683 | op = O_constant; | |
40324362 | 2684 | } |
6efd877d | 2685 | |
604633ae | 2686 | p = frag_more ((int) nbytes); |
6efd877d | 2687 | |
40324362 KR |
2688 | #ifndef WORKING_DOT_WORD |
2689 | /* If we have the difference of two symbols in a word, save it on | |
2690 | the broken_words list. See the code in write.c. */ | |
5ac34ac3 | 2691 | if (op == O_subtract && nbytes == 2) |
40324362 KR |
2692 | { |
2693 | struct broken_word *x; | |
2694 | ||
2695 | x = (struct broken_word *) xmalloc (sizeof (struct broken_word)); | |
2696 | x->next_broken_word = broken_words; | |
2697 | broken_words = x; | |
2698 | x->frag = frag_now; | |
2699 | x->word_goes_here = p; | |
2700 | x->dispfrag = 0; | |
2701 | x->add = exp->X_add_symbol; | |
5ac34ac3 | 2702 | x->sub = exp->X_op_symbol; |
40324362 KR |
2703 | x->addnum = exp->X_add_number; |
2704 | x->added = 0; | |
2705 | new_broken_words++; | |
2706 | return; | |
2707 | } | |
f8701a3f | 2708 | #endif |
6efd877d | 2709 | |
80aab579 ILT |
2710 | /* If we have an integer, but the number of bytes is too large to |
2711 | pass to md_number_to_chars, handle it as a bignum. */ | |
2712 | if (op == O_constant && nbytes > sizeof (valueT)) | |
2713 | { | |
2714 | valueT val; | |
2715 | int gencnt; | |
2716 | ||
2717 | if (! exp->X_unsigned && exp->X_add_number < 0) | |
2718 | extra_digit = (valueT) -1; | |
2719 | val = (valueT) exp->X_add_number; | |
2720 | gencnt = 0; | |
2721 | do | |
2722 | { | |
2723 | generic_bignum[gencnt] = val & LITTLENUM_MASK; | |
2724 | val >>= LITTLENUM_NUMBER_OF_BITS; | |
2725 | ++gencnt; | |
2726 | } | |
2727 | while (val != 0); | |
2728 | op = exp->X_op = O_big; | |
2729 | exp->X_add_number = gencnt; | |
2730 | } | |
2731 | ||
5ac34ac3 | 2732 | if (op == O_constant) |
40324362 | 2733 | { |
44ce2f32 DE |
2734 | register valueT get; |
2735 | register valueT use; | |
2736 | register valueT mask; | |
2737 | register valueT unmask; | |
40324362 KR |
2738 | |
2739 | /* JF << of >= number of bits in the object is undefined. In | |
2740 | particular SPARC (Sun 4) has problems */ | |
44ce2f32 | 2741 | if (nbytes >= sizeof (valueT)) |
40324362 KR |
2742 | mask = 0; |
2743 | else | |
d2550c72 | 2744 | mask = ~(valueT) 0 << (BITS_PER_CHAR * nbytes); /* Don't store these bits. */ |
6efd877d | 2745 | |
40324362 | 2746 | unmask = ~mask; /* Do store these bits. */ |
6efd877d | 2747 | |
40324362 KR |
2748 | #ifdef NEVER |
2749 | "Do this mod if you want every overflow check to assume SIGNED 2's complement data."; | |
2750 | mask = ~(unmask >> 1); /* Includes sign bit now. */ | |
2751 | #endif | |
6efd877d | 2752 | |
40324362 KR |
2753 | get = exp->X_add_number; |
2754 | use = get & unmask; | |
2755 | if ((get & mask) != 0 && (get & mask) != mask) | |
2756 | { /* Leading bits contain both 0s & 1s. */ | |
58d4951d | 2757 | as_warn ("Value 0x%lx truncated to 0x%lx.", get, use); |
40324362 | 2758 | } |
604633ae | 2759 | /* put bytes in right order. */ |
44ce2f32 | 2760 | md_number_to_chars (p, use, (int) nbytes); |
40324362 | 2761 | } |
80aab579 ILT |
2762 | else if (op == O_big) |
2763 | { | |
2764 | int size; | |
2765 | LITTLENUM_TYPE *nums; | |
2766 | ||
2767 | know (nbytes % CHARS_PER_LITTLENUM == 0); | |
2768 | ||
2769 | size = exp->X_add_number * CHARS_PER_LITTLENUM; | |
2770 | if (nbytes < size) | |
2771 | { | |
2772 | as_warn ("Bignum truncated to %d bytes", nbytes); | |
2773 | size = nbytes; | |
2774 | } | |
2775 | ||
2776 | if (target_big_endian) | |
2777 | { | |
2778 | while (nbytes > size) | |
2779 | { | |
2780 | md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM); | |
2781 | nbytes -= CHARS_PER_LITTLENUM; | |
2782 | p += CHARS_PER_LITTLENUM; | |
2783 | } | |
2784 | ||
2785 | nums = generic_bignum + size / CHARS_PER_LITTLENUM; | |
2786 | while (size > 0) | |
2787 | { | |
2788 | --nums; | |
2789 | md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM); | |
2790 | size -= CHARS_PER_LITTLENUM; | |
2791 | p += CHARS_PER_LITTLENUM; | |
2792 | } | |
2793 | } | |
2794 | else | |
2795 | { | |
2796 | nums = generic_bignum; | |
2797 | while (size > 0) | |
2798 | { | |
2799 | md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM); | |
2800 | ++nums; | |
2801 | size -= CHARS_PER_LITTLENUM; | |
2802 | p += CHARS_PER_LITTLENUM; | |
2803 | nbytes -= CHARS_PER_LITTLENUM; | |
2804 | } | |
2805 | ||
2806 | while (nbytes > 0) | |
2807 | { | |
2808 | md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM); | |
2809 | nbytes -= CHARS_PER_LITTLENUM; | |
2810 | p += CHARS_PER_LITTLENUM; | |
2811 | } | |
2812 | } | |
2813 | } | |
40324362 KR |
2814 | else |
2815 | { | |
1fbfe108 | 2816 | memset (p, 0, nbytes); |
6efd877d | 2817 | |
40324362 KR |
2818 | /* Now we need to generate a fixS to record the symbol value. |
2819 | This is easy for BFD. For other targets it can be more | |
2820 | complex. For very complex cases (currently, the HPPA and | |
2821 | NS32K), you can define TC_CONS_FIX_NEW to do whatever you | |
2822 | want. For simpler cases, you can define TC_CONS_RELOC to be | |
2823 | the name of the reloc code that should be stored in the fixS. | |
2824 | If neither is defined, the code uses NO_RELOC if it is | |
2825 | defined, and otherwise uses 0. */ | |
6efd877d | 2826 | |
40324362 | 2827 | #ifdef BFD_ASSEMBLER |
4064305e SS |
2828 | #ifdef TC_CONS_FIX_NEW |
2829 | TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp); | |
2830 | #else | |
604633ae | 2831 | fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp, 0, |
5ac34ac3 | 2832 | /* @@ Should look at CPU word size. */ |
ba71c54d | 2833 | nbytes == 2 ? BFD_RELOC_16 |
86038ada ILT |
2834 | : nbytes == 8 ? BFD_RELOC_64 |
2835 | : BFD_RELOC_32); | |
4064305e | 2836 | #endif |
40324362 KR |
2837 | #else |
2838 | #ifdef TC_CONS_FIX_NEW | |
2839 | TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp); | |
2840 | #else | |
2841 | /* Figure out which reloc number to use. Use TC_CONS_RELOC if | |
2842 | it is defined, otherwise use NO_RELOC if it is defined, | |
2843 | otherwise use 0. */ | |
2844 | #ifndef TC_CONS_RELOC | |
2845 | #ifdef NO_RELOC | |
2846 | #define TC_CONS_RELOC NO_RELOC | |
2847 | #else | |
2848 | #define TC_CONS_RELOC 0 | |
2849 | #endif | |
2850 | #endif | |
80aab579 | 2851 | fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp, 0, |
5ac34ac3 | 2852 | TC_CONS_RELOC); |
40324362 KR |
2853 | #endif /* TC_CONS_FIX_NEW */ |
2854 | #endif /* BFD_ASSEMBLER */ | |
2855 | } | |
2856 | } | |
2857 | \f | |
2858 | #ifdef BITFIELD_CONS_EXPRESSIONS | |
6efd877d | 2859 | |
40324362 KR |
2860 | /* i960 assemblers, (eg, asm960), allow bitfields after ".byte" as |
2861 | w:x,y:z, where w and y are bitwidths and x and y are values. They | |
2862 | then pack them all together. We do a little better in that we allow | |
2863 | them in words, longs, etc. and we'll pack them in target byte order | |
2864 | for you. | |
6efd877d | 2865 | |
40324362 KR |
2866 | The rules are: pack least significat bit first, if a field doesn't |
2867 | entirely fit, put it in the next unit. Overflowing the bitfield is | |
2868 | explicitly *not* even a warning. The bitwidth should be considered | |
2869 | a "mask". | |
6efd877d | 2870 | |
40324362 KR |
2871 | To use this function the tc-XXX.h file should define |
2872 | BITFIELD_CONS_EXPRESSIONS. */ | |
f8701a3f | 2873 | |
40324362 KR |
2874 | static void |
2875 | parse_bitfield_cons (exp, nbytes) | |
2876 | expressionS *exp; | |
2877 | unsigned int nbytes; | |
2878 | { | |
2879 | unsigned int bits_available = BITS_PER_CHAR * nbytes; | |
2880 | char *hold = input_line_pointer; | |
f8701a3f | 2881 | |
5ac34ac3 | 2882 | (void) expression (exp); |
f8701a3f | 2883 | |
40324362 KR |
2884 | if (*input_line_pointer == ':') |
2885 | { /* bitfields */ | |
2886 | long value = 0; | |
f8701a3f | 2887 | |
40324362 KR |
2888 | for (;;) |
2889 | { | |
2890 | unsigned long width; | |
f8701a3f | 2891 | |
40324362 KR |
2892 | if (*input_line_pointer != ':') |
2893 | { | |
2894 | input_line_pointer = hold; | |
2895 | break; | |
2896 | } /* next piece is not a bitfield */ | |
2897 | ||
2898 | /* In the general case, we can't allow | |
2899 | full expressions with symbol | |
2900 | differences and such. The relocation | |
2901 | entries for symbols not defined in this | |
2902 | assembly would require arbitrary field | |
2903 | widths, positions, and masks which most | |
2904 | of our current object formats don't | |
2905 | support. | |
cd3b81bd | 2906 | |
40324362 KR |
2907 | In the specific case where a symbol |
2908 | *is* defined in this assembly, we | |
2909 | *could* build fixups and track it, but | |
2910 | this could lead to confusion for the | |
2911 | backends. I'm lazy. I'll take any | |
2912 | SEG_ABSOLUTE. I think that means that | |
2913 | you can use a previous .set or | |
2914 | .equ type symbol. xoxorich. */ | |
2915 | ||
5ac34ac3 | 2916 | if (exp->X_op == O_absent) |
6efd877d | 2917 | { |
5ac34ac3 | 2918 | as_warn ("using a bit field width of zero"); |
40324362 | 2919 | exp->X_add_number = 0; |
5ac34ac3 | 2920 | exp->X_op = O_constant; |
40324362 KR |
2921 | } /* implied zero width bitfield */ |
2922 | ||
5ac34ac3 | 2923 | if (exp->X_op != O_constant) |
6efd877d | 2924 | { |
40324362 | 2925 | *input_line_pointer = '\0'; |
5ac34ac3 | 2926 | as_bad ("field width \"%s\" too complex for a bitfield", hold); |
40324362 KR |
2927 | *input_line_pointer = ':'; |
2928 | demand_empty_rest_of_line (); | |
2929 | return; | |
2930 | } /* too complex */ | |
2931 | ||
2932 | if ((width = exp->X_add_number) > (BITS_PER_CHAR * nbytes)) | |
9471a360 | 2933 | { |
80aab579 | 2934 | as_warn ("field width %lu too big to fit in %d bytes: truncated to %d bits", |
40324362 KR |
2935 | width, nbytes, (BITS_PER_CHAR * nbytes)); |
2936 | width = BITS_PER_CHAR * nbytes; | |
2937 | } /* too big */ | |
2938 | ||
2939 | if (width > bits_available) | |
9471a360 | 2940 | { |
40324362 KR |
2941 | /* FIXME-SOMEDAY: backing up and reparsing is wasteful. */ |
2942 | input_line_pointer = hold; | |
2943 | exp->X_add_number = value; | |
2944 | break; | |
2945 | } /* won't fit */ | |
2946 | ||
2947 | hold = ++input_line_pointer; /* skip ':' */ | |
2948 | ||
5ac34ac3 ILT |
2949 | (void) expression (exp); |
2950 | if (exp->X_op != O_constant) | |
9471a360 | 2951 | { |
40324362 KR |
2952 | char cache = *input_line_pointer; |
2953 | ||
2954 | *input_line_pointer = '\0'; | |
5ac34ac3 | 2955 | as_bad ("field value \"%s\" too complex for a bitfield", hold); |
40324362 KR |
2956 | *input_line_pointer = cache; |
2957 | demand_empty_rest_of_line (); | |
2958 | return; | |
2959 | } /* too complex */ | |
2960 | ||
5ac34ac3 ILT |
2961 | value |= ((~(-1 << width) & exp->X_add_number) |
2962 | << ((BITS_PER_CHAR * nbytes) - bits_available)); | |
40324362 KR |
2963 | |
2964 | if ((bits_available -= width) == 0 | |
2965 | || is_it_end_of_statement () | |
2966 | || *input_line_pointer != ',') | |
2967 | { | |
2968 | break; | |
2969 | } /* all the bitfields we're gonna get */ | |
2970 | ||
2971 | hold = ++input_line_pointer; | |
5ac34ac3 | 2972 | (void) expression (exp); |
40324362 KR |
2973 | } /* forever loop */ |
2974 | ||
2975 | exp->X_add_number = value; | |
5ac34ac3 | 2976 | exp->X_op = O_constant; |
80aab579 | 2977 | exp->X_unsigned = 1; |
40324362 KR |
2978 | } /* if looks like a bitfield */ |
2979 | } /* parse_bitfield_cons() */ | |
2980 | ||
2981 | #endif /* BITFIELD_CONS_EXPRESSIONS */ | |
2982 | \f | |
1356d77d | 2983 | /* Handle an MRI style string expression. */ |
40324362 KR |
2984 | |
2985 | static void | |
2986 | parse_mri_cons (exp, nbytes) | |
2987 | expressionS *exp; | |
2988 | unsigned int nbytes; | |
2989 | { | |
1356d77d ILT |
2990 | if (*input_line_pointer != '\'' |
2991 | && (input_line_pointer[1] != '\'' | |
2992 | || (*input_line_pointer != 'A' | |
2993 | && *input_line_pointer != 'E'))) | |
2994 | TC_PARSE_CONS_EXPRESSION (exp, nbytes); | |
2995 | else | |
40324362 | 2996 | { |
40324362 KR |
2997 | int scan = 0; |
2998 | unsigned int result = 0; | |
1356d77d ILT |
2999 | |
3000 | /* An MRI style string. Cut into as many bytes as will fit into | |
3001 | a nbyte chunk, left justify if necessary, and separate with | |
3002 | commas so we can try again later. */ | |
3003 | if (*input_line_pointer == 'A') | |
3004 | ++input_line_pointer; | |
3005 | else if (*input_line_pointer == 'E') | |
3006 | { | |
3007 | as_bad ("EBCDIC constants are not supported"); | |
3008 | ++input_line_pointer; | |
3009 | } | |
3010 | ||
40324362 KR |
3011 | input_line_pointer++; |
3012 | for (scan = 0; scan < nbytes; scan++) | |
3013 | { | |
3014 | if (*input_line_pointer == '\'') | |
3015 | { | |
3016 | if (input_line_pointer[1] == '\'') | |
6efd877d | 3017 | { |
40324362 | 3018 | input_line_pointer++; |
f8701a3f | 3019 | } |
40324362 KR |
3020 | else |
3021 | break; | |
9471a360 | 3022 | } |
40324362 KR |
3023 | result = (result << 8) | (*input_line_pointer++); |
3024 | } | |
f8701a3f | 3025 | |
40324362 KR |
3026 | /* Left justify */ |
3027 | while (scan < nbytes) | |
3028 | { | |
3029 | result <<= 8; | |
3030 | scan++; | |
3031 | } | |
3032 | /* Create correct expression */ | |
5ac34ac3 | 3033 | exp->X_op = O_constant; |
40324362 | 3034 | exp->X_add_number = result; |
40324362 KR |
3035 | /* Fake it so that we can read the next char too */ |
3036 | if (input_line_pointer[0] != '\'' || | |
3037 | (input_line_pointer[0] == '\'' && input_line_pointer[1] == '\'')) | |
3038 | { | |
3039 | input_line_pointer -= 2; | |
3040 | input_line_pointer[0] = ','; | |
3041 | input_line_pointer[1] = '\''; | |
3042 | } | |
3043 | else | |
3044 | input_line_pointer++; | |
3045 | } | |
40324362 | 3046 | } |
40324362 KR |
3047 | \f |
3048 | #ifdef REPEAT_CONS_EXPRESSIONS | |
3049 | ||
3050 | /* Parse a repeat expression for cons. This is used by the MIPS | |
3051 | assembler. The format is NUMBER:COUNT; NUMBER appears in the | |
3052 | object file COUNT times. | |
3053 | ||
3054 | To use this for a target, define REPEAT_CONS_EXPRESSIONS. */ | |
3055 | ||
3056 | static void | |
3057 | parse_repeat_cons (exp, nbytes) | |
3058 | expressionS *exp; | |
3059 | unsigned int nbytes; | |
3060 | { | |
3061 | expressionS count; | |
40324362 KR |
3062 | register int i; |
3063 | ||
3064 | expression (exp); | |
3065 | ||
3066 | if (*input_line_pointer != ':') | |
3067 | { | |
3068 | /* No repeat count. */ | |
3069 | return; | |
3070 | } | |
3071 | ||
3072 | ++input_line_pointer; | |
5ac34ac3 ILT |
3073 | expression (&count); |
3074 | if (count.X_op != O_constant | |
40324362 KR |
3075 | || count.X_add_number <= 0) |
3076 | { | |
3077 | as_warn ("Unresolvable or nonpositive repeat count; using 1"); | |
3078 | return; | |
3079 | } | |
3080 | ||
3081 | /* The cons function is going to output this expression once. So we | |
3082 | output it count - 1 times. */ | |
3083 | for (i = count.X_add_number - 1; i > 0; i--) | |
3084 | emit_expr (exp, nbytes); | |
3085 | } | |
3086 | ||
3087 | #endif /* REPEAT_CONS_EXPRESSIONS */ | |
fecd2382 | 3088 | \f |
e28c40d7 ILT |
3089 | /* Parse a floating point number represented as a hex constant. This |
3090 | permits users to specify the exact bits they want in the floating | |
3091 | point number. */ | |
3092 | ||
3093 | static int | |
3094 | hex_float (float_type, bytes) | |
3095 | int float_type; | |
3096 | char *bytes; | |
3097 | { | |
3098 | int length; | |
3099 | int i; | |
3100 | ||
3101 | switch (float_type) | |
3102 | { | |
3103 | case 'f': | |
3104 | case 'F': | |
3105 | case 's': | |
3106 | case 'S': | |
3107 | length = 4; | |
3108 | break; | |
3109 | ||
3110 | case 'd': | |
3111 | case 'D': | |
3112 | case 'r': | |
3113 | case 'R': | |
3114 | length = 8; | |
3115 | break; | |
3116 | ||
3117 | case 'x': | |
3118 | case 'X': | |
3119 | length = 12; | |
3120 | break; | |
3121 | ||
3122 | case 'p': | |
3123 | case 'P': | |
3124 | length = 12; | |
3125 | break; | |
3126 | ||
3127 | default: | |
3128 | as_bad ("Unknown floating type type '%c'", float_type); | |
3129 | return -1; | |
3130 | } | |
3131 | ||
3132 | /* It would be nice if we could go through expression to parse the | |
3133 | hex constant, but if we get a bignum it's a pain to sort it into | |
3134 | the buffer correctly. */ | |
3135 | i = 0; | |
3136 | while (hex_p (*input_line_pointer) || *input_line_pointer == '_') | |
3137 | { | |
3138 | int d; | |
3139 | ||
3140 | /* The MRI assembler accepts arbitrary underscores strewn about | |
3141 | through the hex constant, so we ignore them as well. */ | |
3142 | if (*input_line_pointer == '_') | |
3143 | { | |
3144 | ++input_line_pointer; | |
3145 | continue; | |
3146 | } | |
3147 | ||
3148 | if (i >= length) | |
3149 | { | |
3150 | as_warn ("Floating point constant too large"); | |
3151 | return -1; | |
3152 | } | |
3153 | d = hex_value (*input_line_pointer) << 4; | |
3154 | ++input_line_pointer; | |
3155 | while (*input_line_pointer == '_') | |
3156 | ++input_line_pointer; | |
3157 | if (hex_p (*input_line_pointer)) | |
3158 | { | |
3159 | d += hex_value (*input_line_pointer); | |
3160 | ++input_line_pointer; | |
3161 | } | |
a920b693 ILT |
3162 | if (target_big_endian) |
3163 | bytes[i] = d; | |
3164 | else | |
3165 | bytes[length - i - 1] = d; | |
3166 | ++i; | |
e28c40d7 ILT |
3167 | } |
3168 | ||
3169 | if (i < length) | |
a920b693 ILT |
3170 | { |
3171 | if (target_big_endian) | |
3172 | memset (bytes + i, 0, length - i); | |
3173 | else | |
3174 | memset (bytes, 0, length - i); | |
3175 | } | |
e28c40d7 ILT |
3176 | |
3177 | return length; | |
3178 | } | |
3179 | ||
fecd2382 RP |
3180 | /* |
3181 | * float_cons() | |
3182 | * | |
3183 | * CONStruct some more frag chars of .floats .ffloats etc. | |
3184 | * Makes 0 or more new frags. | |
3185 | * If need_pass_2 == 1, no frags are emitted. | |
3186 | * This understands only floating literals, not expressions. Sorry. | |
3187 | * | |
3188 | * A floating constant is defined by atof_generic(), except it is preceded | |
3189 | * by 0d 0f 0g or 0h. After observing the STRANGE way my BSD AS does its | |
3190 | * reading, I decided to be incompatible. This always tries to give you | |
3191 | * rounded bits to the precision of the pseudo-op. Former AS did premature | |
3192 | * truncatation, restored noisy bits instead of trailing 0s AND gave you | |
3193 | * a choice of 2 flavours of noise according to which of 2 floating-point | |
3194 | * scanners you directed AS to use. | |
3195 | * | |
3196 | * In: input_line_pointer->whitespace before, or '0' of flonum. | |
3197 | * | |
3198 | */ | |
3199 | ||
ba71c54d KR |
3200 | void |
3201 | float_cons (float_type) | |
6efd877d | 3202 | /* Clobbers input_line-pointer, checks end-of-line. */ |
f8701a3f | 3203 | register int float_type; /* 'f':.ffloat ... 'F':.float ... */ |
fecd2382 | 3204 | { |
6efd877d | 3205 | register char *p; |
6efd877d KR |
3206 | int length; /* Number of chars in an object. */ |
3207 | register char *err; /* Error from scanning floating literal. */ | |
3208 | char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT]; | |
f8701a3f | 3209 | |
6efd877d | 3210 | if (is_it_end_of_statement ()) |
f8701a3f | 3211 | { |
1e9cf565 ILT |
3212 | demand_empty_rest_of_line (); |
3213 | return; | |
f8701a3f | 3214 | } |
1e9cf565 ILT |
3215 | |
3216 | do | |
f8701a3f SC |
3217 | { |
3218 | /* input_line_pointer->1st char of a flonum (we hope!). */ | |
6efd877d | 3219 | SKIP_WHITESPACE (); |
1e9cf565 | 3220 | |
f8701a3f SC |
3221 | /* Skip any 0{letter} that may be present. Don't even check if the |
3222 | * letter is legal. Someone may invent a "z" format and this routine | |
3223 | * has no use for such information. Lusers beware: you get | |
3224 | * diagnostics if your input is ill-conditioned. | |
3225 | */ | |
6efd877d KR |
3226 | if (input_line_pointer[0] == '0' && isalpha (input_line_pointer[1])) |
3227 | input_line_pointer += 2; | |
f8701a3f | 3228 | |
1356d77d ILT |
3229 | /* Accept :xxxx, where the x's are hex digits, for a floating |
3230 | point with the exact digits specified. */ | |
3231 | if (input_line_pointer[0] == ':') | |
f8701a3f | 3232 | { |
e28c40d7 ILT |
3233 | ++input_line_pointer; |
3234 | length = hex_float (float_type, temp); | |
3235 | if (length < 0) | |
1356d77d | 3236 | { |
1356d77d ILT |
3237 | ignore_rest_of_line (); |
3238 | return; | |
3239 | } | |
1356d77d ILT |
3240 | } |
3241 | else | |
3242 | { | |
3243 | err = md_atof (float_type, temp, &length); | |
3244 | know (length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT); | |
3245 | know (length > 0); | |
3246 | if (err) | |
3247 | { | |
3248 | as_bad ("Bad floating literal: %s", err); | |
3249 | ignore_rest_of_line (); | |
3250 | return; | |
3251 | } | |
f8701a3f | 3252 | } |
1e9cf565 ILT |
3253 | |
3254 | if (!need_pass_2) | |
f8701a3f | 3255 | { |
1e9cf565 ILT |
3256 | int count; |
3257 | ||
3258 | count = 1; | |
3259 | ||
3260 | #ifdef REPEAT_CONS_EXPRESSIONS | |
3261 | if (*input_line_pointer == ':') | |
3262 | { | |
1e9cf565 ILT |
3263 | expressionS count_exp; |
3264 | ||
3265 | ++input_line_pointer; | |
5ac34ac3 ILT |
3266 | expression (&count_exp); |
3267 | if (count_exp.X_op != O_constant | |
1e9cf565 ILT |
3268 | || count_exp.X_add_number <= 0) |
3269 | { | |
5ac34ac3 | 3270 | as_warn ("unresolvable or nonpositive repeat count; using 1"); |
1e9cf565 ILT |
3271 | } |
3272 | else | |
3273 | count = count_exp.X_add_number; | |
3274 | } | |
3275 | #endif | |
3276 | ||
3277 | while (--count >= 0) | |
a39116f1 | 3278 | { |
f8701a3f | 3279 | p = frag_more (length); |
604633ae | 3280 | memcpy (p, temp, (unsigned int) length); |
a39116f1 | 3281 | } |
542e1629 | 3282 | } |
1e9cf565 | 3283 | SKIP_WHITESPACE (); |
f8701a3f | 3284 | } |
1e9cf565 ILT |
3285 | while (*input_line_pointer++ == ','); |
3286 | ||
3287 | --input_line_pointer; /* Put terminator back into stream. */ | |
6efd877d | 3288 | demand_empty_rest_of_line (); |
f8701a3f | 3289 | } /* float_cons() */ |
fecd2382 RP |
3290 | \f |
3291 | /* | |
3292 | * stringer() | |
3293 | * | |
3294 | * We read 0 or more ',' seperated, double-quoted strings. | |
3295 | * | |
3296 | * Caller should have checked need_pass_2 is FALSE because we don't check it. | |
3297 | */ | |
a39116f1 RP |
3298 | |
3299 | ||
6efd877d KR |
3300 | void |
3301 | stringer (append_zero) /* Worker to do .ascii etc statements. */ | |
3302 | /* Checks end-of-line. */ | |
f8701a3f | 3303 | register int append_zero; /* 0: don't append '\0', else 1 */ |
fecd2382 | 3304 | { |
f8701a3f | 3305 | register unsigned int c; |
6efd877d | 3306 | |
a2a5a4fa KR |
3307 | #ifdef md_flush_pending_output |
3308 | md_flush_pending_output (); | |
3309 | #endif | |
3310 | ||
f8701a3f SC |
3311 | /* |
3312 | * The following awkward logic is to parse ZERO or more strings, | |
3313 | * comma seperated. Recall a string expression includes spaces | |
3314 | * before the opening '\"' and spaces after the closing '\"'. | |
3315 | * We fake a leading ',' if there is (supposed to be) | |
3316 | * a 1st, expression. We keep demanding expressions for each | |
3317 | * ','. | |
3318 | */ | |
6efd877d KR |
3319 | if (is_it_end_of_statement ()) |
3320 | { | |
3321 | c = 0; /* Skip loop. */ | |
3322 | ++input_line_pointer; /* Compensate for end of loop. */ | |
3323 | } | |
f8701a3f | 3324 | else |
6efd877d KR |
3325 | { |
3326 | c = ','; /* Do loop. */ | |
3327 | } | |
3328 | while (c == ',' || c == '<' || c == '"') | |
3329 | { | |
3330 | SKIP_WHITESPACE (); | |
3331 | switch (*input_line_pointer) | |
3332 | { | |
3333 | case '\"': | |
3334 | ++input_line_pointer; /*->1st char of string. */ | |
3335 | while (is_a_char (c = next_char_of_string ())) | |
3336 | { | |
3337 | FRAG_APPEND_1_CHAR (c); | |
3338 | } | |
3339 | if (append_zero) | |
3340 | { | |
3341 | FRAG_APPEND_1_CHAR (0); | |
3342 | } | |
3343 | know (input_line_pointer[-1] == '\"'); | |
3344 | break; | |
3345 | case '<': | |
3346 | input_line_pointer++; | |
3347 | c = get_single_number (); | |
3348 | FRAG_APPEND_1_CHAR (c); | |
3349 | if (*input_line_pointer != '>') | |
3350 | { | |
3351 | as_bad ("Expected <nn>"); | |
3352 | } | |
3353 | input_line_pointer++; | |
3354 | break; | |
3355 | case ',': | |
3356 | input_line_pointer++; | |
3357 | break; | |
3358 | } | |
3359 | SKIP_WHITESPACE (); | |
3360 | c = *input_line_pointer; | |
f8701a3f | 3361 | } |
f8701a3f | 3362 | |
6efd877d KR |
3363 | demand_empty_rest_of_line (); |
3364 | } /* stringer() */ | |
fecd2382 | 3365 | \f |
6efd877d | 3366 | /* FIXME-SOMEDAY: I had trouble here on characters with the |
f8701a3f SC |
3367 | high bits set. We'll probably also have trouble with |
3368 | multibyte chars, wide chars, etc. Also be careful about | |
3369 | returning values bigger than 1 byte. xoxorich. */ | |
fecd2382 | 3370 | |
6efd877d KR |
3371 | unsigned int |
3372 | next_char_of_string () | |
3373 | { | |
3374 | register unsigned int c; | |
3375 | ||
3376 | c = *input_line_pointer++ & CHAR_MASK; | |
3377 | switch (c) | |
3378 | { | |
3379 | case '\"': | |
3380 | c = NOT_A_CHAR; | |
3381 | break; | |
3382 | ||
ddb393cf | 3383 | #ifndef NO_STRING_ESCAPES |
6efd877d KR |
3384 | case '\\': |
3385 | switch (c = *input_line_pointer++) | |
3386 | { | |
3387 | case 'b': | |
3388 | c = '\b'; | |
3389 | break; | |
3390 | ||
3391 | case 'f': | |
3392 | c = '\f'; | |
3393 | break; | |
3394 | ||
3395 | case 'n': | |
3396 | c = '\n'; | |
3397 | break; | |
3398 | ||
3399 | case 'r': | |
3400 | c = '\r'; | |
3401 | break; | |
3402 | ||
3403 | case 't': | |
3404 | c = '\t'; | |
3405 | break; | |
3406 | ||
6efd877d KR |
3407 | case 'v': |
3408 | c = '\013'; | |
3409 | break; | |
6efd877d KR |
3410 | |
3411 | case '\\': | |
3412 | case '"': | |
3413 | break; /* As itself. */ | |
3414 | ||
3415 | case '0': | |
3416 | case '1': | |
3417 | case '2': | |
3418 | case '3': | |
3419 | case '4': | |
3420 | case '5': | |
3421 | case '6': | |
3422 | case '7': | |
3423 | case '8': | |
3424 | case '9': | |
3425 | { | |
3426 | long number; | |
d4c8cbd8 | 3427 | int i; |
6efd877d | 3428 | |
d4c8cbd8 | 3429 | for (i = 0, number = 0; isdigit (c) && i < 3; c = *input_line_pointer++, i++) |
6efd877d KR |
3430 | { |
3431 | number = number * 8 + c - '0'; | |
3432 | } | |
3433 | c = number & 0xff; | |
3434 | } | |
3435 | --input_line_pointer; | |
3436 | break; | |
3437 | ||
d4c8cbd8 JL |
3438 | case 'x': |
3439 | case 'X': | |
3440 | { | |
3441 | long number; | |
3442 | ||
3443 | number = 0; | |
3444 | c = *input_line_pointer++; | |
3445 | while (isxdigit (c)) | |
3446 | { | |
3447 | if (isdigit (c)) | |
3448 | number = number * 16 + c - '0'; | |
3449 | else if (isupper (c)) | |
3450 | number = number * 16 + c - 'A' + 10; | |
3451 | else | |
3452 | number = number * 16 + c - 'a' + 10; | |
3453 | c = *input_line_pointer++; | |
3454 | } | |
3455 | c = number & 0xff; | |
3456 | --input_line_pointer; | |
3457 | } | |
3458 | break; | |
3459 | ||
6efd877d KR |
3460 | case '\n': |
3461 | /* To be compatible with BSD 4.2 as: give the luser a linefeed!! */ | |
3462 | as_warn ("Unterminated string: Newline inserted."); | |
3463 | c = '\n'; | |
3464 | break; | |
3465 | ||
3466 | default: | |
3467 | ||
fecd2382 | 3468 | #ifdef ONLY_STANDARD_ESCAPES |
6efd877d KR |
3469 | as_bad ("Bad escaped character in string, '?' assumed"); |
3470 | c = '?'; | |
fecd2382 | 3471 | #endif /* ONLY_STANDARD_ESCAPES */ |
6efd877d KR |
3472 | |
3473 | break; | |
3474 | } /* switch on escaped char */ | |
3475 | break; | |
ddb393cf | 3476 | #endif /* ! defined (NO_STRING_ESCAPES) */ |
6efd877d KR |
3477 | |
3478 | default: | |
3479 | break; | |
3480 | } /* switch on char */ | |
3481 | return (c); | |
3482 | } /* next_char_of_string() */ | |
fecd2382 RP |
3483 | \f |
3484 | static segT | |
f8701a3f | 3485 | get_segmented_expression (expP) |
6efd877d | 3486 | register expressionS *expP; |
fecd2382 | 3487 | { |
6efd877d | 3488 | register segT retval; |
f8701a3f | 3489 | |
9471a360 | 3490 | retval = expression (expP); |
5ac34ac3 ILT |
3491 | if (expP->X_op == O_illegal |
3492 | || expP->X_op == O_absent | |
3493 | || expP->X_op == O_big) | |
f8701a3f | 3494 | { |
5ac34ac3 ILT |
3495 | as_bad ("expected address expression; zero assumed"); |
3496 | expP->X_op = O_constant; | |
6efd877d | 3497 | expP->X_add_number = 0; |
5ac34ac3 | 3498 | retval = absolute_section; |
f8701a3f | 3499 | } |
5ac34ac3 | 3500 | return retval; |
fecd2382 RP |
3501 | } |
3502 | ||
6efd877d KR |
3503 | static segT |
3504 | get_known_segmented_expression (expP) | |
3505 | register expressionS *expP; | |
fecd2382 | 3506 | { |
6efd877d | 3507 | register segT retval; |
f8701a3f | 3508 | |
9471a360 | 3509 | if ((retval = get_segmented_expression (expP)) == undefined_section) |
f8701a3f | 3510 | { |
5ac34ac3 ILT |
3511 | /* There is no easy way to extract the undefined symbol from the |
3512 | expression. */ | |
3513 | if (expP->X_add_symbol != NULL | |
3514 | && S_GET_SEGMENT (expP->X_add_symbol) != expr_section) | |
3515 | as_warn ("symbol \"%s\" undefined; zero assumed", | |
3516 | S_GET_NAME (expP->X_add_symbol)); | |
f8701a3f | 3517 | else |
5ac34ac3 ILT |
3518 | as_warn ("some symbol undefined; zero assumed"); |
3519 | retval = absolute_section; | |
3520 | expP->X_op = O_constant; | |
6efd877d | 3521 | expP->X_add_number = 0; |
f8701a3f | 3522 | } |
5ac34ac3 | 3523 | know (retval == absolute_section || SEG_NORMAL (retval)); |
f8701a3f | 3524 | return (retval); |
fecd2382 RP |
3525 | } /* get_known_segmented_expression() */ |
3526 | ||
58d4951d | 3527 | offsetT |
f8701a3f | 3528 | get_absolute_expression () |
fecd2382 | 3529 | { |
6efd877d | 3530 | expressionS exp; |
f8701a3f | 3531 | |
5ac34ac3 ILT |
3532 | expression (&exp); |
3533 | if (exp.X_op != O_constant) | |
f8701a3f | 3534 | { |
5ac34ac3 | 3535 | if (exp.X_op != O_absent) |
cd3b81bd | 3536 | as_bad ("bad or irreducible absolute expression; zero assumed"); |
6efd877d | 3537 | exp.X_add_number = 0; |
f8701a3f | 3538 | } |
5ac34ac3 | 3539 | return exp.X_add_number; |
fecd2382 RP |
3540 | } |
3541 | ||
6efd877d KR |
3542 | char /* return terminator */ |
3543 | get_absolute_expression_and_terminator (val_pointer) | |
3544 | long *val_pointer; /* return value of expression */ | |
fecd2382 | 3545 | { |
58d4951d ILT |
3546 | /* FIXME: val_pointer should probably be offsetT *. */ |
3547 | *val_pointer = (long) get_absolute_expression (); | |
6efd877d | 3548 | return (*input_line_pointer++); |
fecd2382 RP |
3549 | } |
3550 | \f | |
3551 | /* | |
3552 | * demand_copy_C_string() | |
3553 | * | |
3554 | * Like demand_copy_string, but return NULL if the string contains any '\0's. | |
3555 | * Give a warning if that happens. | |
3556 | */ | |
3557 | char * | |
f8701a3f | 3558 | demand_copy_C_string (len_pointer) |
6efd877d | 3559 | int *len_pointer; |
fecd2382 | 3560 | { |
6efd877d | 3561 | register char *s; |
f8701a3f | 3562 | |
6efd877d | 3563 | if ((s = demand_copy_string (len_pointer)) != 0) |
f8701a3f SC |
3564 | { |
3565 | register int len; | |
3566 | ||
6efd877d | 3567 | for (len = *len_pointer; |
f8701a3f SC |
3568 | len > 0; |
3569 | len--) | |
3570 | { | |
6efd877d | 3571 | if (*s == 0) |
fecd2382 | 3572 | { |
f8701a3f SC |
3573 | s = 0; |
3574 | len = 1; | |
6efd877d KR |
3575 | *len_pointer = 0; |
3576 | as_bad ("This string may not contain \'\\0\'"); | |
fecd2382 | 3577 | } |
f8701a3f SC |
3578 | } |
3579 | } | |
3580 | return (s); | |
fecd2382 RP |
3581 | } |
3582 | \f | |
3583 | /* | |
3584 | * demand_copy_string() | |
3585 | * | |
3586 | * Demand string, but return a safe (=private) copy of the string. | |
3587 | * Return NULL if we can't read a string here. | |
3588 | */ | |
6ef37255 | 3589 | char * |
6efd877d KR |
3590 | demand_copy_string (lenP) |
3591 | int *lenP; | |
fecd2382 | 3592 | { |
6efd877d KR |
3593 | register unsigned int c; |
3594 | register int len; | |
3595 | char *retval; | |
3596 | ||
3597 | len = 0; | |
3598 | SKIP_WHITESPACE (); | |
3599 | if (*input_line_pointer == '\"') | |
3600 | { | |
3601 | input_line_pointer++; /* Skip opening quote. */ | |
3602 | ||
3603 | while (is_a_char (c = next_char_of_string ())) | |
3604 | { | |
3605 | obstack_1grow (¬es, c); | |
3606 | len++; | |
fecd2382 | 3607 | } |
6efd877d KR |
3608 | /* JF this next line is so demand_copy_C_string will return a null |
3609 | termanated string. */ | |
3610 | obstack_1grow (¬es, '\0'); | |
3611 | retval = obstack_finish (¬es); | |
3612 | } | |
3613 | else | |
3614 | { | |
3615 | as_warn ("Missing string"); | |
3616 | retval = NULL; | |
3617 | ignore_rest_of_line (); | |
3618 | } | |
3619 | *lenP = len; | |
3620 | return (retval); | |
3621 | } /* demand_copy_string() */ | |
fecd2382 RP |
3622 | \f |
3623 | /* | |
3624 | * is_it_end_of_statement() | |
3625 | * | |
3626 | * In: Input_line_pointer->next character. | |
3627 | * | |
3628 | * Do: Skip input_line_pointer over all whitespace. | |
3629 | * | |
3630 | * Out: 1 if input_line_pointer->end-of-line. | |
f8701a3f | 3631 | */ |
6efd877d KR |
3632 | int |
3633 | is_it_end_of_statement () | |
3634 | { | |
3635 | SKIP_WHITESPACE (); | |
58d4951d | 3636 | return (is_end_of_line[(unsigned char) *input_line_pointer]); |
6efd877d | 3637 | } /* is_it_end_of_statement() */ |
fecd2382 | 3638 | |
6efd877d KR |
3639 | void |
3640 | equals (sym_name) | |
3641 | char *sym_name; | |
fecd2382 | 3642 | { |
6efd877d | 3643 | register symbolS *symbolP; /* symbol we are working with */ |
86038ada | 3644 | char *stop; |
18c9057f | 3645 | char stopc; |
f8701a3f SC |
3646 | |
3647 | input_line_pointer++; | |
6efd877d | 3648 | if (*input_line_pointer == '=') |
f8701a3f SC |
3649 | input_line_pointer++; |
3650 | ||
6efd877d | 3651 | while (*input_line_pointer == ' ' || *input_line_pointer == '\t') |
f8701a3f SC |
3652 | input_line_pointer++; |
3653 | ||
86038ada | 3654 | if (flag_mri) |
18c9057f | 3655 | stop = mri_comment_field (&stopc); |
86038ada | 3656 | |
6efd877d KR |
3657 | if (sym_name[0] == '.' && sym_name[1] == '\0') |
3658 | { | |
3659 | /* Turn '. = mumble' into a .org mumble */ | |
3660 | register segT segment; | |
3661 | expressionS exp; | |
f8701a3f | 3662 | |
6efd877d KR |
3663 | segment = get_known_segmented_expression (&exp); |
3664 | if (!need_pass_2) | |
e28c40d7 | 3665 | do_org (segment, &exp, 0); |
6efd877d KR |
3666 | } |
3667 | else | |
3668 | { | |
3669 | symbolP = symbol_find_or_make (sym_name); | |
3670 | pseudo_set (symbolP); | |
3671 | } | |
86038ada ILT |
3672 | |
3673 | if (flag_mri) | |
18c9057f | 3674 | mri_comment_end (stop, stopc); |
6efd877d | 3675 | } /* equals() */ |
fecd2382 RP |
3676 | |
3677 | /* .include -- include a file at this point. */ | |
3678 | ||
3679 | /* ARGSUSED */ | |
6efd877d KR |
3680 | void |
3681 | s_include (arg) | |
3682 | int arg; | |
fecd2382 | 3683 | { |
f8701a3f SC |
3684 | char *newbuf; |
3685 | char *filename; | |
3686 | int i; | |
3687 | FILE *try; | |
3688 | char *path; | |
3689 | ||
ca232972 ILT |
3690 | if (! flag_mri) |
3691 | filename = demand_copy_string (&i); | |
3692 | else | |
3693 | { | |
3694 | SKIP_WHITESPACE (); | |
3695 | i = 0; | |
3696 | while (! is_end_of_line[(unsigned char) *input_line_pointer] | |
3697 | && *input_line_pointer != ' ' | |
3698 | && *input_line_pointer != '\t') | |
3699 | { | |
3700 | obstack_1grow (¬es, *input_line_pointer); | |
3701 | ++input_line_pointer; | |
3702 | ++i; | |
3703 | } | |
3704 | obstack_1grow (¬es, '\0'); | |
3705 | filename = obstack_finish (¬es); | |
3706 | } | |
6efd877d | 3707 | demand_empty_rest_of_line (); |
604633ae | 3708 | path = xmalloc ((unsigned long) i + include_dir_maxlen + 5 /* slop */ ); |
6efd877d KR |
3709 | for (i = 0; i < include_dir_count; i++) |
3710 | { | |
3711 | strcpy (path, include_dirs[i]); | |
3712 | strcat (path, "/"); | |
3713 | strcat (path, filename); | |
f2889110 | 3714 | if (0 != (try = fopen (path, "r"))) |
6efd877d KR |
3715 | { |
3716 | fclose (try); | |
3717 | goto gotit; | |
3718 | } | |
3719 | } | |
3720 | free (path); | |
f8701a3f SC |
3721 | path = filename; |
3722 | gotit: | |
3723 | /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */ | |
3724 | newbuf = input_scrub_include_file (path, input_line_pointer); | |
3725 | buffer_limit = input_scrub_next_buffer (&input_line_pointer); | |
6efd877d | 3726 | } /* s_include() */ |
fecd2382 | 3727 | |
6efd877d KR |
3728 | void |
3729 | add_include_dir (path) | |
3730 | char *path; | |
fecd2382 | 3731 | { |
f8701a3f SC |
3732 | int i; |
3733 | ||
3734 | if (include_dir_count == 0) | |
3735 | { | |
6efd877d | 3736 | include_dirs = (char **) xmalloc (2 * sizeof (*include_dirs)); |
f8701a3f SC |
3737 | include_dirs[0] = "."; /* Current dir */ |
3738 | include_dir_count = 2; | |
3739 | } | |
3740 | else | |
3741 | { | |
3742 | include_dir_count++; | |
6efd877d KR |
3743 | include_dirs = (char **) realloc (include_dirs, |
3744 | include_dir_count * sizeof (*include_dirs)); | |
f8701a3f SC |
3745 | } |
3746 | ||
6efd877d | 3747 | include_dirs[include_dir_count - 1] = path; /* New one */ |
f8701a3f | 3748 | |
6efd877d KR |
3749 | i = strlen (path); |
3750 | if (i > include_dir_maxlen) | |
3751 | include_dir_maxlen = i; | |
3752 | } /* add_include_dir() */ | |
fecd2382 | 3753 | |
6efd877d KR |
3754 | void |
3755 | s_ignore (arg) | |
3756 | int arg; | |
fecd2382 | 3757 | { |
58d4951d | 3758 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
6efd877d KR |
3759 | { |
3760 | ++input_line_pointer; | |
3761 | } | |
3762 | ++input_line_pointer; | |
4064305e SS |
3763 | } |
3764 | ||
604633ae | 3765 | |
fecd2382 | 3766 | /* end of read.c */ |