Commit | Line | Data |
---|---|---|
fecd2382 | 1 | /* read.c - read a source file - |
5ac34ac3 | 2 | Copyright (C) 1986, 1987, 1990, 1991, 1993 Free Software Foundation, Inc. |
3340f7e5 | 3 | |
f8701a3f SC |
4 | This file is part of GAS, the GNU Assembler. |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
fecd2382 | 19 | |
016e0d42 | 20 | #if 0 |
fecd2382 RP |
21 | #define MASK_CHAR (0xFF) /* If your chars aren't 8 bits, you will |
22 | change this a bit. But then, GNU isn't | |
23 | spozed to run on your machine anyway. | |
24 | (RMS is so shortsighted sometimes.) | |
25 | */ | |
016e0d42 ILT |
26 | #else |
27 | #define MASK_CHAR ((int)(unsigned char)-1) | |
28 | #endif | |
fecd2382 | 29 | |
9a7d824a | 30 | |
9471a360 KR |
31 | /* This is the largest known floating point format (for now). It will |
32 | grow when we do 4361 style flonums. */ | |
fecd2382 | 33 | |
9471a360 | 34 | #define MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT (16) |
fecd2382 | 35 | |
016e0d42 ILT |
36 | /* Routines that read assembler source text to build spagetti in memory. |
37 | Another group of these functions is in the expr.c module. */ | |
fecd2382 | 38 | |
9471a360 | 39 | /* for isdigit() */ |
6efd877d KR |
40 | #include <ctype.h> |
41 | ||
fecd2382 | 42 | #include "as.h" |
9471a360 KR |
43 | #ifdef BFD_ASSEMBLER |
44 | #include "subsegs.h" | |
45 | #endif | |
fecd2382 RP |
46 | |
47 | #include "obstack.h" | |
9a7d824a ILT |
48 | #include "listing.h" |
49 | ||
50 | ||
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 RP |
64 | |
65 | #if BITS_PER_CHAR != 8 | |
6efd877d KR |
66 | /* The following table is indexed by[(char)] and will break if |
67 | a char does not have exactly 256 states (hopefully 0:255!)! */ | |
68 | die horribly; | |
fecd2382 | 69 | #endif |
f8701a3f | 70 | |
c978e704 ILT |
71 | #ifndef LEX_AT |
72 | /* The m88k unfortunately uses @ as a label beginner. */ | |
73 | #define LEX_AT 0 | |
74 | #endif | |
75 | ||
016e0d42 ILT |
76 | /* used by is_... macros. our ctype[] */ |
77 | const char lex_type[256] = | |
78 | { | |
79 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */ | |
80 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */ | |
81 | 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */ | |
82 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */ | |
c978e704 | 83 | LEX_AT, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */ |
016e0d42 ILT |
84 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, /* PQRSTUVWXYZ[\]^_ */ |
85 | 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */ | |
86 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, /* pqrstuvwxyz{|}~. */ | |
87 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
88 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
89 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
90 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
91 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
92 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
93 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
94 | }; | |
95 | ||
96 | ||
97 | /* | |
fecd2382 RP |
98 | * In: a character. |
99 | * Out: 1 if this character ends a line. | |
100 | */ | |
101 | #define _ (0) | |
016e0d42 ILT |
102 | char is_end_of_line[256] = |
103 | { | |
fecd2382 | 104 | #ifdef CR_EOL |
016e0d42 | 105 | _, _, _, _, _, _, _, _, _, _, 99, _, _, 99, _, _, /* @abcdefghijklmno */ |
fecd2382 | 106 | #else |
016e0d42 | 107 | _, _, _, _, _, _, _, _, _, _, 99, _, _, _, _, _, /* @abcdefghijklmno */ |
fecd2382 | 108 | #endif |
016e0d42 | 109 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ |
40324362 KR |
110 | #ifdef TC_HPPA |
111 | _,99, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* _!"#$%&'()*+,-./ */ | |
112 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* 0123456789:;<=>? */ | |
113 | #else | |
016e0d42 ILT |
114 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ |
115 | _, _, _, _, _, _, _, _, _, _, _, 99, _, _, _, _, /* 0123456789:;<=>? */ | |
40324362 | 116 | #endif |
016e0d42 ILT |
117 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ |
118 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
119 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
120 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
121 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
122 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
123 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
124 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
125 | _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */ | |
126 | }; | |
fecd2382 RP |
127 | #undef _ |
128 | ||
016e0d42 ILT |
129 | /* Functions private to this file. */ |
130 | ||
131 | static char *buffer; /* 1st char of each buffer of lines is here. */ | |
132 | static char *buffer_limit; /*->1 + last char in buffer. */ | |
fecd2382 | 133 | |
016e0d42 ILT |
134 | static char *bignum_low; /* Lowest char of bignum. */ |
135 | static char *bignum_limit; /* 1st illegal address of bignum. */ | |
136 | static char *bignum_high; /* Highest char of bignum. */ | |
137 | /* May point to (bignum_start-1). */ | |
138 | /* Never >= bignum_limit. */ | |
fecd2382 | 139 | |
9c6d3f66 KR |
140 | int target_big_endian; |
141 | ||
9471a360 | 142 | static char *old_buffer; /* JF a hack */ |
016e0d42 ILT |
143 | static char *old_input; |
144 | static char *old_limit; | |
fecd2382 | 145 | |
016e0d42 | 146 | /* Variables for handling include file directory list. */ |
fecd2382 | 147 | |
016e0d42 ILT |
148 | char **include_dirs; /* List of pointers to directories to |
149 | search for .include's */ | |
150 | int include_dir_count; /* How many are in the list */ | |
151 | int include_dir_maxlen = 1;/* Length of longest in list */ | |
fecd2382 RP |
152 | |
153 | #ifndef WORKING_DOT_WORD | |
016e0d42 | 154 | struct broken_word *broken_words; |
9471a360 | 155 | int new_broken_words; |
fecd2382 RP |
156 | #endif |
157 | ||
016e0d42 ILT |
158 | static char *demand_copy_string PARAMS ((int *lenP)); |
159 | int is_it_end_of_statement PARAMS ((void)); | |
160 | unsigned int next_char_of_string PARAMS ((void)); | |
5ac34ac3 | 161 | static segT get_segmented_expression PARAMS ((expressionS *expP)); |
016e0d42 ILT |
162 | static segT get_known_segmented_expression PARAMS ((expressionS * expP)); |
163 | static void grow_bignum PARAMS ((void)); | |
164 | static void pobegin PARAMS ((void)); | |
fecd2382 | 165 | |
016e0d42 | 166 | extern int listing; |
fecd2382 | 167 | \f |
6efd877d | 168 | |
016e0d42 ILT |
169 | void |
170 | read_begin () | |
fecd2382 | 171 | { |
016e0d42 | 172 | const char *p; |
f8701a3f | 173 | |
6efd877d KR |
174 | pobegin (); |
175 | obj_read_begin_hook (); | |
f8701a3f | 176 | |
4380166d KR |
177 | /* Something close -- but not too close -- to a multiple of 1024. |
178 | The debugging malloc I'm using has 24 bytes of overhead. */ | |
179 | obstack_begin (¬es, 5090); | |
180 | obstack_begin (&cond_obstack, 990); | |
f8701a3f | 181 | |
fecd2382 | 182 | #define BIGNUM_BEGIN_SIZE (16) |
6efd877d | 183 | bignum_low = xmalloc ((long) BIGNUM_BEGIN_SIZE); |
f8701a3f SC |
184 | bignum_limit = bignum_low + BIGNUM_BEGIN_SIZE; |
185 | ||
186 | /* Use machine dependent syntax */ | |
187 | for (p = line_separator_chars; *p; p++) | |
188 | is_end_of_line[*p] = 1; | |
189 | /* Use more. FIXME-SOMEDAY. */ | |
fecd2382 RP |
190 | } |
191 | \f | |
192 | /* set up pseudo-op tables */ | |
193 | ||
c8863a58 | 194 | struct hash_control *po_hash; |
fecd2382 | 195 | |
016e0d42 | 196 | static const pseudo_typeS potable[] = |
fecd2382 | 197 | { |
6efd877d KR |
198 | {"abort", s_abort, 0}, |
199 | {"align", s_align_ptwo, 0}, | |
200 | {"ascii", stringer, 0}, | |
201 | {"asciz", stringer, 1}, | |
f8701a3f | 202 | /* block */ |
6efd877d KR |
203 | {"byte", cons, 1}, |
204 | {"comm", s_comm, 0}, | |
205 | {"data", s_data, 0}, | |
f8701a3f | 206 | /* dim */ |
6efd877d | 207 | {"double", float_cons, 'd'}, |
f8701a3f | 208 | /* dsect */ |
6efd877d KR |
209 | {"eject", listing_eject, 0}, /* Formfeed listing */ |
210 | {"else", s_else, 0}, | |
211 | {"end", s_end, 0}, | |
212 | {"endif", s_endif, 0}, | |
f8701a3f | 213 | /* endef */ |
6efd877d | 214 | {"equ", s_set, 0}, |
f8701a3f SC |
215 | /* err */ |
216 | /* extend */ | |
6efd877d | 217 | {"extern", s_ignore, 0}, /* We treat all undef as ext */ |
9a7d824a ILT |
218 | {"appfile", s_app_file, 1}, |
219 | {"appline", s_app_line, 0}, | |
6efd877d KR |
220 | {"file", s_app_file, 0}, |
221 | {"fill", s_fill, 0}, | |
222 | {"float", float_cons, 'f'}, | |
6efd877d KR |
223 | {"global", s_globl, 0}, |
224 | {"globl", s_globl, 0}, | |
225 | {"hword", cons, 2}, | |
226 | {"if", s_if, 0}, | |
227 | {"ifdef", s_ifdef, 0}, | |
228 | {"ifeqs", s_ifeqs, 0}, | |
229 | {"ifndef", s_ifdef, 1}, | |
230 | {"ifnes", s_ifeqs, 1}, | |
231 | {"ifnotdef", s_ifdef, 1}, | |
232 | {"include", s_include, 0}, | |
233 | {"int", cons, 4}, | |
234 | {"lcomm", s_lcomm, 0}, | |
235 | {"lflags", listing_flags, 0}, /* Listing flags */ | |
236 | {"list", listing_list, 1}, /* Turn listing on */ | |
237 | {"long", cons, 4}, | |
238 | {"lsym", s_lsym, 0}, | |
239 | {"nolist", listing_list, 0}, /* Turn listing off */ | |
240 | {"octa", big_cons, 16}, | |
241 | {"org", s_org, 0}, | |
242 | {"psize", listing_psize, 0}, /* set paper size */ | |
f8701a3f | 243 | /* print */ |
6efd877d KR |
244 | {"quad", big_cons, 8}, |
245 | {"sbttl", listing_title, 1}, /* Subtitle of listing */ | |
f8701a3f SC |
246 | /* scl */ |
247 | /* sect */ | |
6efd877d KR |
248 | {"set", s_set, 0}, |
249 | {"short", cons, 2}, | |
250 | {"single", float_cons, 'f'}, | |
f8701a3f | 251 | /* size */ |
6efd877d | 252 | {"space", s_space, 0}, |
f8701a3f | 253 | /* tag */ |
6efd877d KR |
254 | {"text", s_text, 0}, |
255 | {"title", listing_title, 0}, /* Listing title */ | |
f8701a3f SC |
256 | /* type */ |
257 | /* use */ | |
258 | /* val */ | |
6efd877d KR |
259 | {"word", cons, 2}, |
260 | {NULL} /* end sentinel */ | |
fecd2382 RP |
261 | }; |
262 | ||
6efd877d KR |
263 | static void |
264 | pobegin () | |
265 | { | |
266 | char *errtxt; /* error text */ | |
267 | const pseudo_typeS *pop; | |
268 | ||
269 | po_hash = hash_new (); | |
270 | ||
271 | /* Do the target-specific pseudo ops. */ | |
272 | for (pop = md_pseudo_table; pop->poc_name; pop++) | |
273 | { | |
274 | errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop); | |
275 | if (errtxt && *errtxt) | |
276 | { | |
277 | as_fatal ("error constructing md pseudo-op table"); | |
278 | } /* on error */ | |
279 | } /* for each op */ | |
280 | ||
281 | /* Now object specific. Skip any that were in the target table. */ | |
282 | for (pop = obj_pseudo_table; pop->poc_name; pop++) | |
283 | { | |
284 | errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop); | |
285 | if (errtxt && *errtxt) | |
286 | { | |
287 | if (!strcmp (errtxt, "exists")) | |
288 | { | |
fecd2382 | 289 | #ifdef DIE_ON_OVERRIDES |
6efd877d | 290 | as_fatal ("pseudo op \".%s\" overridden.\n", pop->poc_name); |
fecd2382 | 291 | #endif /* DIE_ON_OVERRIDES */ |
6efd877d KR |
292 | continue; /* OK if target table overrides. */ |
293 | } | |
294 | else | |
295 | { | |
296 | as_fatal ("error constructing obj pseudo-op table"); | |
297 | } /* if overridden */ | |
298 | } /* on error */ | |
299 | } /* for each op */ | |
300 | ||
301 | /* Now portable ones. Skip any that we've seen already. */ | |
302 | for (pop = potable; pop->poc_name; pop++) | |
303 | { | |
304 | errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop); | |
305 | if (errtxt && *errtxt) | |
306 | { | |
307 | if (!strcmp (errtxt, "exists")) | |
308 | { | |
fecd2382 | 309 | #ifdef DIE_ON_OVERRIDES |
6efd877d | 310 | as_fatal ("pseudo op \".%s\" overridden.\n", pop->poc_name); |
fecd2382 | 311 | #endif /* DIE_ON_OVERRIDES */ |
6efd877d KR |
312 | continue; /* OK if target table overrides. */ |
313 | } | |
314 | else | |
315 | { | |
316 | as_fatal ("error constructing obj pseudo-op table"); | |
317 | } /* if overridden */ | |
318 | } /* on error */ | |
319 | } /* for each op */ | |
320 | ||
321 | return; | |
322 | } /* pobegin() */ | |
fecd2382 RP |
323 | \f |
324 | #define HANDLE_CONDITIONAL_ASSEMBLY() \ | |
f8701a3f SC |
325 | if (ignore_input ()) \ |
326 | { \ | |
327 | while (! is_end_of_line[*input_line_pointer++]) \ | |
328 | if (input_line_pointer == buffer_limit) \ | |
329 | break; \ | |
330 | continue; \ | |
331 | } | |
a39116f1 | 332 | |
fecd2382 RP |
333 | |
334 | /* read_a_source_file() | |
335 | * | |
336 | * We read the file, putting things into a web that | |
337 | * represents what we have been reading. | |
338 | */ | |
6efd877d KR |
339 | void |
340 | read_a_source_file (name) | |
341 | char *name; | |
fecd2382 | 342 | { |
f8701a3f | 343 | register char c; |
6efd877d | 344 | register char *s; /* string of symbol, '\0' appended */ |
f8701a3f | 345 | register int temp; |
6efd877d | 346 | pseudo_typeS *pop; |
f8701a3f | 347 | |
6efd877d | 348 | buffer = input_scrub_new_file (name); |
f8701a3f | 349 | |
6efd877d KR |
350 | listing_file (name); |
351 | listing_newline (""); | |
f8701a3f | 352 | |
6efd877d KR |
353 | while ((buffer_limit = input_scrub_next_buffer (&input_line_pointer)) != 0) |
354 | { /* We have another line to parse. */ | |
355 | know (buffer_limit[-1] == '\n'); /* Must have a sentinel. */ | |
9471a360 KR |
356 | contin: /* JF this goto is my fault I admit it. |
357 | Someone brave please re-write the whole | |
358 | input section here? Pleeze??? */ | |
6efd877d | 359 | while (input_line_pointer < buffer_limit) |
9471a360 KR |
360 | { |
361 | /* We have more of this buffer to parse. */ | |
f8701a3f SC |
362 | |
363 | /* | |
364 | * We now have input_line_pointer->1st char of next line. | |
365 | * If input_line_pointer [-1] == '\n' then we just | |
366 | * scanned another line: so bump line counters. | |
367 | */ | |
6efd877d KR |
368 | if (input_line_pointer[-1] == '\n') |
369 | { | |
370 | bump_line_counters (); | |
f8701a3f SC |
371 | |
372 | #ifdef MRI | |
373 | /* Text at the start of a line must be a label, we run down and stick a colon in */ | |
6efd877d KR |
374 | if (is_name_beginner (*input_line_pointer)) |
375 | { | |
376 | char *line_start = input_line_pointer; | |
377 | char c = get_symbol_end (); | |
378 | colon (line_start); | |
379 | *input_line_pointer = c; | |
380 | if (c == ':') | |
381 | input_line_pointer++; | |
382 | ||
383 | } | |
f8701a3f | 384 | #endif |
9471a360 | 385 | } |
f8701a3f SC |
386 | |
387 | ||
f8701a3f SC |
388 | /* |
389 | * We are at the begining of a line, or similar place. | |
390 | * We expect a well-formed assembler statement. | |
391 | * A "symbol-name:" is a statement. | |
392 | * | |
393 | * Depending on what compiler is used, the order of these tests | |
394 | * may vary to catch most common case 1st. | |
395 | * Each test is independent of all other tests at the (top) level. | |
396 | * PLEASE make a compiler that doesn't use this assembler. | |
397 | * It is crufty to waste a compiler's time encoding things for this | |
398 | * assembler, which then wastes more time decoding it. | |
399 | * (And communicating via (linear) files is silly! | |
400 | * If you must pass stuff, please pass a tree!) | |
401 | */ | |
9471a360 KR |
402 | if ((c = *input_line_pointer++) == '\t' |
403 | || c == ' ' | |
404 | || c == '\f' | |
405 | || c == 0) | |
6efd877d KR |
406 | { |
407 | c = *input_line_pointer++; | |
408 | } | |
409 | know (c != ' '); /* No further leading whitespace. */ | |
410 | LISTING_NEWLINE (); | |
f8701a3f SC |
411 | /* |
412 | * C is the 1st significant character. | |
413 | * Input_line_pointer points after that character. | |
414 | */ | |
6efd877d KR |
415 | if (is_name_beginner (c)) |
416 | { /* want user-defined label or pseudo/opcode */ | |
417 | HANDLE_CONDITIONAL_ASSEMBLY (); | |
418 | ||
f8701a3f | 419 | s = --input_line_pointer; |
6efd877d | 420 | c = get_symbol_end (); /* name's delimiter */ |
f8701a3f SC |
421 | /* |
422 | * C is character after symbol. | |
423 | * That character's place in the input line is now '\0'. | |
424 | * S points to the beginning of the symbol. | |
425 | * [In case of pseudo-op, s->'.'.] | |
426 | * Input_line_pointer->'\0' where c was. | |
427 | */ | |
9a7d824a | 428 | if (TC_START_LABEL(c, input_line_pointer)) |
6efd877d KR |
429 | { |
430 | colon (s); /* user-defined label */ | |
431 | *input_line_pointer++ = ':'; /* Put ':' back for error messages' sake. */ | |
f8701a3f | 432 | /* Input_line_pointer->after ':'. */ |
6efd877d KR |
433 | SKIP_WHITESPACE (); |
434 | ||
f8701a3f | 435 | |
6efd877d KR |
436 | } |
437 | else if (c == '=' || input_line_pointer[1] == '=') | |
9c6d3f66 | 438 | { |
6efd877d KR |
439 | equals (s); |
440 | demand_empty_rest_of_line (); | |
441 | } | |
442 | else | |
443 | { /* expect pseudo-op or machine instruction */ | |
f8701a3f | 444 | #ifdef MRI |
6efd877d KR |
445 | if (!done_pseudo (s)) |
446 | ||
f8701a3f | 447 | #else |
8ff6f40e ILT |
448 | |
449 | pop = NULL; | |
450 | ||
451 | #ifdef NO_PSEUDO_DOT | |
452 | /* The m88k uses pseudo-ops without a period. */ | |
453 | pop = (pseudo_typeS *) hash_find (po_hash, s); | |
cf897ce2 ILT |
454 | if (pop != NULL && pop->poc_handler == NULL) |
455 | pop = NULL; | |
8ff6f40e ILT |
456 | #endif |
457 | ||
458 | if (pop != NULL || *s == '.') | |
6efd877d KR |
459 | { |
460 | /* | |
9471a360 KR |
461 | * PSEUDO - OP. |
462 | * | |
463 | * WARNING: c has next char, which may be end-of-line. | |
464 | * We lookup the pseudo-op table with s+1 because we | |
465 | * already know that the pseudo-op begins with a '.'. | |
466 | */ | |
6efd877d | 467 | |
8ff6f40e ILT |
468 | if (pop == NULL) |
469 | pop = (pseudo_typeS *) hash_find (po_hash, s + 1); | |
6efd877d KR |
470 | |
471 | /* Print the error msg now, while we still can */ | |
8ff6f40e | 472 | if (pop == NULL) |
6efd877d KR |
473 | { |
474 | as_bad ("Unknown pseudo-op: `%s'", s); | |
f8701a3f | 475 | *input_line_pointer = c; |
6efd877d KR |
476 | s_ignore (0); |
477 | break; | |
478 | } | |
479 | ||
480 | /* Put it back for error messages etc. */ | |
481 | *input_line_pointer = c; | |
9c6d3f66 KR |
482 | /* The following skip of whitespace is compulsory. |
483 | A well shaped space is sometimes all that separates | |
484 | keyword from operands. */ | |
6efd877d KR |
485 | if (c == ' ' || c == '\t') |
486 | { | |
487 | input_line_pointer++; | |
488 | } /* Skip seperator after keyword. */ | |
489 | /* | |
9471a360 KR |
490 | * Input_line is restored. |
491 | * Input_line_pointer->1st non-blank char | |
492 | * after pseudo-operation. | |
493 | */ | |
6efd877d KR |
494 | if (!pop) |
495 | { | |
496 | ignore_rest_of_line (); | |
497 | break; | |
498 | } | |
499 | else | |
500 | { | |
501 | (*pop->poc_handler) (pop->poc_val); | |
502 | } /* if we have one */ | |
503 | } | |
504 | else | |
f8701a3f | 505 | #endif |
6efd877d KR |
506 | { /* machine instruction */ |
507 | /* WARNING: c has char, which may be end-of-line. */ | |
508 | /* Also: input_line_pointer->`\0` where c was. */ | |
509 | *input_line_pointer = c; | |
510 | while (!is_end_of_line[*input_line_pointer]) | |
511 | { | |
512 | input_line_pointer++; | |
513 | } | |
f8701a3f | 514 | |
6efd877d KR |
515 | c = *input_line_pointer; |
516 | *input_line_pointer = '\0'; | |
f8701a3f | 517 | |
6efd877d | 518 | md_assemble (s); /* Assemble 1 instruction. */ |
f8701a3f | 519 | |
6efd877d | 520 | *input_line_pointer++ = c; |
f8701a3f | 521 | |
6efd877d KR |
522 | /* We resume loop AFTER the end-of-line from this instruction */ |
523 | } /* if (*s=='.') */ | |
524 | ||
525 | } /* if c==':' */ | |
f8701a3f | 526 | continue; |
6efd877d | 527 | } /* if (is_name_beginner(c) */ |
f8701a3f | 528 | |
f8701a3f | 529 | |
6efd877d KR |
530 | if (is_end_of_line[c]) |
531 | { | |
f8701a3f | 532 | continue; |
6efd877d KR |
533 | } /* empty statement */ |
534 | ||
535 | ||
536 | #if defined(LOCAL_LABELS_DOLLAR) || defined(LOCAL_LABELS_FB) | |
537 | if (isdigit (c)) | |
538 | { /* local label ("4:") */ | |
539 | char *backup = input_line_pointer; | |
540 | ||
541 | HANDLE_CONDITIONAL_ASSEMBLY (); | |
542 | ||
543 | temp = c - '0'; | |
544 | ||
545 | while (isdigit (*input_line_pointer)) | |
546 | { | |
547 | temp = (temp * 10) + *input_line_pointer - '0'; | |
548 | ++input_line_pointer; | |
549 | } /* read the whole number */ | |
550 | ||
551 | #ifdef LOCAL_LABELS_DOLLAR | |
552 | if (*input_line_pointer == '$' | |
553 | && *(input_line_pointer + 1) == ':') | |
554 | { | |
555 | input_line_pointer += 2; | |
556 | ||
557 | if (dollar_label_defined (temp)) | |
558 | { | |
559 | as_fatal ("label \"%d$\" redefined", temp); | |
560 | } | |
561 | ||
562 | define_dollar_label (temp); | |
563 | colon (dollar_label_name (temp, 0)); | |
564 | continue; | |
565 | } | |
f8701a3f | 566 | #endif /* LOCAL_LABELS_DOLLAR */ |
6efd877d | 567 | |
f8701a3f | 568 | #ifdef LOCAL_LABELS_FB |
6efd877d KR |
569 | if (*input_line_pointer++ == ':') |
570 | { | |
571 | fb_label_instance_inc (temp); | |
572 | colon (fb_label_name (temp, 0)); | |
573 | continue; | |
574 | } | |
f8701a3f | 575 | #endif /* LOCAL_LABELS_FB */ |
6efd877d KR |
576 | |
577 | input_line_pointer = backup; | |
578 | } /* local label ("4:") */ | |
f8701a3f SC |
579 | #endif /* LOCAL_LABELS_DOLLAR or LOCAL_LABELS_FB */ |
580 | ||
6efd877d KR |
581 | if (c && strchr (line_comment_chars, c)) |
582 | { /* Its a comment. Better say APP or NO_APP */ | |
f8701a3f SC |
583 | char *ends; |
584 | char *new_buf; | |
585 | char *new_tmp; | |
586 | int new_length; | |
587 | char *tmp_buf = 0; | |
6efd877d KR |
588 | extern char *scrub_string, *scrub_last_string; |
589 | ||
590 | bump_line_counters (); | |
591 | s = input_line_pointer; | |
592 | if (strncmp (s, "APP\n", 4)) | |
593 | continue; /* We ignore it */ | |
594 | s += 4; | |
595 | ||
596 | ends = strstr (s, "#NO_APP\n"); | |
597 | ||
598 | if (!ends) | |
599 | { | |
f8701a3f SC |
600 | int tmp_len; |
601 | int num; | |
6efd877d | 602 | |
f8701a3f SC |
603 | /* The end of the #APP wasn't in this buffer. We |
604 | keep reading in buffers until we find the #NO_APP | |
605 | that goes with this #APP There is one. The specs | |
606 | guarentee it. . . */ | |
6efd877d | 607 | tmp_len = buffer_limit - s; |
85825401 | 608 | tmp_buf = xmalloc (tmp_len + 1); |
4380166d | 609 | memcpy (tmp_buf, s, tmp_len); |
6efd877d KR |
610 | do |
611 | { | |
612 | new_tmp = input_scrub_next_buffer (&buffer); | |
f8701a3f | 613 | if (!new_tmp) |
6efd877d | 614 | break; |
f8701a3f | 615 | else |
6efd877d | 616 | buffer_limit = new_tmp; |
f8701a3f | 617 | input_line_pointer = buffer; |
6efd877d | 618 | ends = strstr (buffer, "#NO_APP\n"); |
f8701a3f | 619 | if (ends) |
6efd877d | 620 | num = ends - buffer; |
f8701a3f | 621 | else |
6efd877d KR |
622 | num = buffer_limit - buffer; |
623 | ||
624 | tmp_buf = xrealloc (tmp_buf, tmp_len + num); | |
4380166d | 625 | memcpy (tmp_buf, buffer + tmp_len, num); |
6efd877d KR |
626 | tmp_len += num; |
627 | } | |
628 | while (!ends); | |
629 | ||
630 | input_line_pointer = ends ? ends + 8 : NULL; | |
631 | ||
632 | s = tmp_buf; | |
633 | ends = s + tmp_len; | |
634 | ||
635 | } | |
636 | else | |
637 | { | |
638 | input_line_pointer = ends + 8; | |
639 | } | |
640 | new_buf = xmalloc (100); | |
641 | new_length = 100; | |
642 | new_tmp = new_buf; | |
643 | ||
644 | scrub_string = s; | |
f8701a3f | 645 | scrub_last_string = ends; |
6efd877d KR |
646 | for (;;) |
647 | { | |
f8701a3f SC |
648 | int ch; |
649 | ||
6efd877d KR |
650 | ch = do_scrub_next_char (scrub_from_string, scrub_to_string); |
651 | if (ch == EOF) | |
652 | break; | |
653 | *new_tmp++ = ch; | |
654 | if (new_tmp == new_buf + new_length) | |
655 | { | |
656 | new_buf = xrealloc (new_buf, new_length + 100); | |
657 | new_tmp = new_buf + new_length; | |
658 | new_length += 100; | |
f8701a3f | 659 | } |
fecd2382 | 660 | } |
f8701a3f SC |
661 | |
662 | if (tmp_buf) | |
6efd877d KR |
663 | free (tmp_buf); |
664 | old_buffer = buffer; | |
665 | old_input = input_line_pointer; | |
666 | old_limit = buffer_limit; | |
667 | buffer = new_buf; | |
668 | input_line_pointer = new_buf; | |
669 | buffer_limit = new_tmp; | |
f8701a3f SC |
670 | continue; |
671 | } | |
672 | ||
6efd877d | 673 | HANDLE_CONDITIONAL_ASSEMBLY (); |
f8701a3f SC |
674 | |
675 | /* as_warn("Junk character %d.",c); Now done by ignore_rest */ | |
676 | input_line_pointer--; /* Report unknown char as ignored. */ | |
6efd877d KR |
677 | ignore_rest_of_line (); |
678 | } /* while (input_line_pointer<buffer_limit) */ | |
679 | if (old_buffer) | |
680 | { | |
681 | bump_line_counters (); | |
682 | if (old_input != 0) | |
683 | { | |
684 | buffer = old_buffer; | |
685 | input_line_pointer = old_input; | |
686 | buffer_limit = old_limit; | |
f8701a3f SC |
687 | old_buffer = 0; |
688 | goto contin; | |
689 | } | |
690 | } | |
6efd877d KR |
691 | } /* while (more buffers to scan) */ |
692 | input_scrub_close (); /* Close the input file */ | |
f8701a3f | 693 | |
6efd877d | 694 | } /* read_a_source_file() */ |
fecd2382 | 695 | |
6efd877d KR |
696 | void |
697 | s_abort () | |
698 | { | |
699 | as_fatal (".abort detected. Abandoning ship."); | |
700 | } /* s_abort() */ | |
fecd2382 RP |
701 | |
702 | /* For machines where ".align 4" means align to a 4 byte boundary. */ | |
6efd877d KR |
703 | void |
704 | s_align_bytes (arg) | |
705 | int arg; | |
fecd2382 | 706 | { |
6efd877d KR |
707 | register unsigned int temp; |
708 | register long temp_fill; | |
709 | unsigned int i = 0; | |
710 | unsigned long max_alignment = 1 << 15; | |
f8701a3f | 711 | |
6efd877d KR |
712 | if (is_end_of_line[*input_line_pointer]) |
713 | temp = arg; /* Default value from pseudo-op table */ | |
714 | else | |
715 | temp = get_absolute_expression (); | |
f8701a3f | 716 | |
6efd877d KR |
717 | if (temp > max_alignment) |
718 | { | |
719 | as_bad ("Alignment too large: %d. assumed.", temp = max_alignment); | |
f8701a3f SC |
720 | } |
721 | ||
6efd877d | 722 | /* |
f8701a3f SC |
723 | * For the sparc, `.align (1<<n)' actually means `.align n' |
724 | * so we have to convert it. | |
725 | */ | |
6efd877d KR |
726 | if (temp != 0) |
727 | { | |
728 | for (i = 0; (temp & 1) == 0; temp >>= 1, ++i) | |
729 | ; | |
f8701a3f | 730 | } |
6efd877d KR |
731 | if (temp != 1) |
732 | as_bad ("Alignment not a power of 2"); | |
f8701a3f | 733 | |
6efd877d KR |
734 | temp = i; |
735 | if (*input_line_pointer == ',') | |
736 | { | |
737 | input_line_pointer++; | |
738 | temp_fill = get_absolute_expression (); | |
f8701a3f | 739 | } |
9471a360 | 740 | else if (now_seg != data_section && now_seg != bss_section) |
016e0d42 | 741 | temp_fill = NOP_OPCODE; |
6efd877d | 742 | else |
016e0d42 | 743 | temp_fill = 0; |
6efd877d KR |
744 | /* Only make a frag if we HAVE to. . . */ |
745 | if (temp && !need_pass_2) | |
746 | frag_align (temp, (int) temp_fill); | |
f8701a3f | 747 | |
49864cfa KR |
748 | record_alignment (now_seg, temp); |
749 | ||
6efd877d KR |
750 | demand_empty_rest_of_line (); |
751 | } /* s_align_bytes() */ | |
fecd2382 RP |
752 | |
753 | /* For machines where ".align 4" means align to 2**4 boundary. */ | |
6efd877d KR |
754 | void |
755 | s_align_ptwo () | |
756 | { | |
757 | register int temp; | |
758 | register long temp_fill; | |
759 | long max_alignment = 15; | |
760 | ||
761 | temp = get_absolute_expression (); | |
762 | if (temp > max_alignment) | |
763 | as_bad ("Alignment too large: %d. assumed.", temp = max_alignment); | |
764 | else if (temp < 0) | |
765 | { | |
766 | as_bad ("Alignment negative. 0 assumed."); | |
767 | temp = 0; | |
768 | } | |
769 | if (*input_line_pointer == ',') | |
770 | { | |
771 | input_line_pointer++; | |
772 | temp_fill = get_absolute_expression (); | |
773 | } | |
9471a360 KR |
774 | /* @@ Fix this right for BFD! */ |
775 | else if (now_seg != data_section && now_seg != bss_section) | |
016e0d42 | 776 | temp_fill = NOP_OPCODE; |
6efd877d KR |
777 | else |
778 | temp_fill = 0; | |
779 | /* Only make a frag if we HAVE to. . . */ | |
780 | if (temp && !need_pass_2) | |
781 | frag_align (temp, (int) temp_fill); | |
782 | ||
783 | record_alignment (now_seg, temp); | |
784 | ||
785 | demand_empty_rest_of_line (); | |
786 | } /* s_align_ptwo() */ | |
787 | ||
788 | void | |
789 | s_comm () | |
790 | { | |
791 | register char *name; | |
792 | register char c; | |
793 | register char *p; | |
40324362 | 794 | valueT temp; |
6efd877d KR |
795 | register symbolS *symbolP; |
796 | ||
797 | name = input_line_pointer; | |
798 | c = get_symbol_end (); | |
799 | /* just after name is now '\0' */ | |
800 | p = input_line_pointer; | |
801 | *p = c; | |
802 | SKIP_WHITESPACE (); | |
803 | if (*input_line_pointer != ',') | |
804 | { | |
805 | as_bad ("Expected comma after symbol-name: rest of line ignored."); | |
806 | ignore_rest_of_line (); | |
807 | return; | |
808 | } | |
809 | input_line_pointer++; /* skip ',' */ | |
810 | if ((temp = get_absolute_expression ()) < 0) | |
811 | { | |
812 | as_warn (".COMMon length (%d.) <0! Ignored.", temp); | |
813 | ignore_rest_of_line (); | |
814 | return; | |
815 | } | |
816 | *p = 0; | |
817 | symbolP = symbol_find_or_make (name); | |
818 | *p = c; | |
819 | if (S_IS_DEFINED (symbolP)) | |
820 | { | |
821 | as_bad ("Ignoring attempt to re-define symbol"); | |
822 | ignore_rest_of_line (); | |
823 | return; | |
824 | } | |
825 | if (S_GET_VALUE (symbolP)) | |
826 | { | |
827 | if (S_GET_VALUE (symbolP) != temp) | |
828 | as_bad ("Length of .comm \"%s\" is already %d. Not changed to %d.", | |
829 | S_GET_NAME (symbolP), | |
830 | S_GET_VALUE (symbolP), | |
831 | temp); | |
832 | } | |
833 | else | |
834 | { | |
835 | S_SET_VALUE (symbolP, temp); | |
836 | S_SET_EXTERNAL (symbolP); | |
837 | } | |
9471a360 KR |
838 | #ifdef OBJ_VMS |
839 | if ( (!temp) || !flagseen['1']) | |
840 | S_GET_OTHER(symbolP) = const_flag; | |
841 | #endif /* not OBJ_VMS */ | |
6efd877d KR |
842 | know (symbolP->sy_frag == &zero_address_frag); |
843 | demand_empty_rest_of_line (); | |
844 | } /* s_comm() */ | |
fecd2382 RP |
845 | |
846 | void | |
6efd877d | 847 | s_data () |
fecd2382 | 848 | { |
ffffc8fb | 849 | segT section; |
6efd877d | 850 | register int temp; |
f8701a3f | 851 | |
6efd877d | 852 | temp = get_absolute_expression (); |
ffffc8fb ILT |
853 | if (flagseen['R']) |
854 | { | |
855 | section = text_section; | |
856 | temp += 1000; | |
857 | } | |
858 | else | |
859 | section = data_section; | |
860 | ||
db81c5e7 | 861 | #ifdef BFD_ASSEMBLER |
ffffc8fb | 862 | subseg_set (section, (subsegT) temp); |
db81c5e7 | 863 | #else |
ffffc8fb | 864 | subseg_new (section, (subsegT) temp); |
db81c5e7 | 865 | #endif |
f8701a3f | 866 | |
9471a360 | 867 | #ifdef OBJ_VMS |
6efd877d | 868 | const_flag = 0; |
fecd2382 | 869 | #endif |
6efd877d | 870 | demand_empty_rest_of_line (); |
fecd2382 RP |
871 | } |
872 | ||
9a7d824a ILT |
873 | /* Handle the .appfile pseudo-op. This is automatically generated by |
874 | do_scrub_next_char when a preprocessor # line comment is seen with | |
875 | a file name. This default definition may be overridden by the | |
876 | object or CPU specific pseudo-ops. This function is also the | |
877 | default definition for .file; the APPFILE argument is 1 for | |
878 | .appfile, 0 for .file. */ | |
879 | ||
6efd877d | 880 | void |
9a7d824a ILT |
881 | s_app_file (appfile) |
882 | int appfile; | |
6efd877d KR |
883 | { |
884 | register char *s; | |
885 | int length; | |
f8701a3f | 886 | |
6efd877d KR |
887 | /* Some assemblers tolerate immediately following '"' */ |
888 | if ((s = demand_copy_string (&length)) != 0) | |
889 | { | |
9a7d824a ILT |
890 | /* If this is a fake .appfile, a fake newline was inserted into |
891 | the buffer. Passing -2 to new_logical_line tells it to | |
892 | account for it. */ | |
893 | new_logical_line (s, appfile ? -2 : -1); | |
6efd877d | 894 | demand_empty_rest_of_line (); |
9a7d824a ILT |
895 | #ifdef LISTING |
896 | if (listing) | |
897 | listing_source_file (s); | |
898 | #endif | |
6efd877d | 899 | } |
fecd2382 | 900 | #ifdef OBJ_COFF |
6efd877d | 901 | c_dot_file_symbol (s); |
fecd2382 | 902 | #endif /* OBJ_COFF */ |
40324362 KR |
903 | #ifdef OBJ_ELF |
904 | elf_file_symbol (s); | |
905 | #endif | |
906 | } | |
fecd2382 | 907 | |
9a7d824a ILT |
908 | /* Handle the .appline pseudo-op. This is automatically generated by |
909 | do_scrub_next_char when a preprocessor # line comment is seen. | |
910 | This default definition may be overridden by the object or CPU | |
911 | specific pseudo-ops. */ | |
912 | ||
913 | void | |
914 | s_app_line () | |
915 | { | |
916 | int l; | |
917 | ||
918 | /* The given number is that of the next line. */ | |
919 | l = get_absolute_expression () - 1; | |
920 | new_logical_line ((char *) NULL, l); | |
921 | #ifdef LISTING | |
922 | if (listing) | |
923 | listing_source_line (l); | |
924 | #endif | |
925 | demand_empty_rest_of_line (); | |
926 | } | |
927 | ||
6efd877d KR |
928 | void |
929 | s_fill () | |
930 | { | |
931 | long temp_repeat = 0; | |
932 | long temp_size = 1; | |
933 | register long temp_fill = 0; | |
934 | char *p; | |
f8701a3f | 935 | |
7c2d4011 | 936 | |
6efd877d KR |
937 | temp_repeat = get_absolute_expression (); |
938 | if (*input_line_pointer == ',') | |
939 | { | |
940 | input_line_pointer++; | |
941 | temp_size = get_absolute_expression (); | |
942 | if (*input_line_pointer == ',') | |
7c2d4011 SC |
943 | { |
944 | input_line_pointer++; | |
6efd877d | 945 | temp_fill = get_absolute_expression (); |
fecd2382 | 946 | } |
6efd877d | 947 | } |
c8863a58 | 948 | /* This is to be compatible with BSD 4.2 AS, not for any rational reason. */ |
fecd2382 | 949 | #define BSD_FILL_SIZE_CROCK_8 (8) |
6efd877d KR |
950 | if (temp_size > BSD_FILL_SIZE_CROCK_8) |
951 | { | |
952 | as_warn (".fill size clamped to %d.", BSD_FILL_SIZE_CROCK_8); | |
953 | temp_size = BSD_FILL_SIZE_CROCK_8; | |
954 | } | |
955 | if (temp_size < 0) | |
956 | { | |
957 | as_warn ("Size negative: .fill ignored."); | |
958 | temp_size = 0; | |
959 | } | |
960 | else if (temp_repeat <= 0) | |
961 | { | |
962 | as_warn ("Repeat < 0, .fill ignored"); | |
963 | temp_size = 0; | |
964 | } | |
7fd3560a | 965 | |
6efd877d KR |
966 | if (temp_size && !need_pass_2) |
967 | { | |
968 | p = frag_var (rs_fill, (int) temp_size, (int) temp_size, (relax_substateT) 0, (symbolS *) 0, temp_repeat, (char *) 0); | |
c8863a58 KR |
969 | memset (p, 0, (int) temp_size); |
970 | /* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX | |
971 | * flavoured AS. The following bizzare behaviour is to be | |
972 | * compatible with above. I guess they tried to take up to 8 | |
973 | * bytes from a 4-byte expression and they forgot to sign | |
974 | * extend. Un*x Sux. */ | |
fecd2382 | 975 | #define BSD_FILL_SIZE_CROCK_4 (4) |
c8863a58 KR |
976 | md_number_to_chars (p, temp_fill, |
977 | (temp_size > BSD_FILL_SIZE_CROCK_4 | |
978 | ? BSD_FILL_SIZE_CROCK_4 | |
979 | : (int) temp_size)); | |
980 | /* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes) | |
981 | * but emits no error message because it seems a legal thing to do. | |
982 | * It is a degenerate case of .fill but could be emitted by a compiler. | |
983 | */ | |
6efd877d | 984 | } |
6efd877d | 985 | demand_empty_rest_of_line (); |
f8701a3f SC |
986 | } |
987 | ||
6efd877d KR |
988 | void |
989 | s_globl () | |
990 | { | |
40324362 KR |
991 | char *name; |
992 | int c; | |
993 | symbolS *symbolP; | |
fecd2382 | 994 | |
6efd877d KR |
995 | do |
996 | { | |
997 | name = input_line_pointer; | |
998 | c = get_symbol_end (); | |
999 | symbolP = symbol_find_or_make (name); | |
1000 | *input_line_pointer = c; | |
1001 | SKIP_WHITESPACE (); | |
1002 | S_SET_EXTERNAL (symbolP); | |
1003 | if (c == ',') | |
1004 | { | |
1005 | input_line_pointer++; | |
1006 | SKIP_WHITESPACE (); | |
1007 | if (*input_line_pointer == '\n') | |
1008 | c = '\n'; | |
1009 | } | |
1010 | } | |
1011 | while (c == ','); | |
1012 | demand_empty_rest_of_line (); | |
40324362 | 1013 | } |
6efd877d KR |
1014 | |
1015 | void | |
1016 | s_lcomm (needs_align) | |
c8863a58 KR |
1017 | /* 1 if this was a ".bss" directive, which may require a 3rd argument |
1018 | (alignment); 0 if it was an ".lcomm" (2 args only) */ | |
1019 | int needs_align; | |
fecd2382 | 1020 | { |
6efd877d KR |
1021 | register char *name; |
1022 | register char c; | |
1023 | register char *p; | |
1024 | register int temp; | |
1025 | register symbolS *symbolP; | |
9a7d824a ILT |
1026 | segT current_seg = now_seg; |
1027 | subsegT current_subseg = now_subseg; | |
6efd877d KR |
1028 | const int max_alignment = 15; |
1029 | int align = 0; | |
9a7d824a | 1030 | segT bss_seg = bss_section; |
6efd877d KR |
1031 | |
1032 | name = input_line_pointer; | |
1033 | c = get_symbol_end (); | |
1034 | p = input_line_pointer; | |
1035 | *p = c; | |
1036 | SKIP_WHITESPACE (); | |
1037 | if (*input_line_pointer != ',') | |
1038 | { | |
1039 | as_bad ("Expected comma after name"); | |
1040 | ignore_rest_of_line (); | |
1041 | return; | |
1042 | } | |
f8701a3f | 1043 | |
6efd877d | 1044 | ++input_line_pointer; |
f8701a3f | 1045 | |
6efd877d KR |
1046 | if (*input_line_pointer == '\n') |
1047 | { | |
1048 | as_bad ("Missing size expression"); | |
1049 | return; | |
1050 | } | |
f8701a3f | 1051 | |
6efd877d KR |
1052 | if ((temp = get_absolute_expression ()) < 0) |
1053 | { | |
1054 | as_warn ("BSS length (%d.) <0! Ignored.", temp); | |
1055 | ignore_rest_of_line (); | |
1056 | return; | |
1057 | } | |
f8701a3f | 1058 | |
9a7d824a ILT |
1059 | #ifdef TC_MIPS |
1060 | #ifdef OBJ_ECOFF | |
1061 | /* For MIPS ECOFF, small objects are put in .sbss. */ | |
1062 | if (temp <= bfd_get_gp_size (stdoutput)) | |
1063 | bss_seg = subseg_new (".sbss", 1); | |
1064 | #endif | |
1065 | #endif | |
1066 | ||
6efd877d KR |
1067 | if (needs_align) |
1068 | { | |
1069 | align = 0; | |
1070 | SKIP_WHITESPACE (); | |
1071 | if (*input_line_pointer != ',') | |
1072 | { | |
1073 | as_bad ("Expected comma after size"); | |
1074 | ignore_rest_of_line (); | |
1075 | return; | |
1076 | } | |
1077 | input_line_pointer++; | |
1078 | SKIP_WHITESPACE (); | |
1079 | if (*input_line_pointer == '\n') | |
1080 | { | |
1081 | as_bad ("Missing alignment"); | |
1082 | return; | |
1083 | } | |
1084 | align = get_absolute_expression (); | |
1085 | if (align > max_alignment) | |
1086 | { | |
1087 | align = max_alignment; | |
1088 | as_warn ("Alignment too large: %d. assumed.", align); | |
1089 | } | |
1090 | else if (align < 0) | |
1091 | { | |
1092 | align = 0; | |
1093 | as_warn ("Alignment negative. 0 assumed."); | |
1094 | } | |
9a7d824a | 1095 | record_alignment (bss_seg, align); |
6efd877d | 1096 | } /* if needs align */ |
f8701a3f | 1097 | |
6efd877d KR |
1098 | *p = 0; |
1099 | symbolP = symbol_find_or_make (name); | |
1100 | *p = c; | |
f8701a3f | 1101 | |
6efd877d | 1102 | if ( |
fecd2382 | 1103 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) |
6efd877d KR |
1104 | S_GET_OTHER (symbolP) == 0 && |
1105 | S_GET_DESC (symbolP) == 0 && | |
fecd2382 | 1106 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
9a7d824a | 1107 | (S_GET_SEGMENT (symbolP) == bss_seg |
6efd877d KR |
1108 | || (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0))) |
1109 | { | |
85825401 | 1110 | char *p; |
85825401 | 1111 | |
9471a360 | 1112 | #ifdef BFD_ASSEMBLER |
9a7d824a | 1113 | subseg_set (bss_seg, 1); |
9471a360 | 1114 | #else |
9a7d824a | 1115 | subseg_new (bss_seg, 1); |
9471a360 | 1116 | #endif |
85825401 ILT |
1117 | |
1118 | if (align) | |
1119 | frag_align (align, 0); | |
1120 | /* detach from old frag */ | |
9a7d824a | 1121 | if (S_GET_SEGMENT (symbolP) == bss_seg) |
85825401 ILT |
1122 | symbolP->sy_frag->fr_symbol = NULL; |
1123 | ||
1124 | symbolP->sy_frag = frag_now; | |
1125 | p = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP, | |
1126 | temp, (char *)0); | |
1127 | *p = 0; | |
f8701a3f | 1128 | |
9a7d824a | 1129 | S_SET_SEGMENT (symbolP, bss_seg); |
85825401 | 1130 | |
fecd2382 | 1131 | #ifdef OBJ_COFF |
6efd877d | 1132 | /* The symbol may already have been created with a preceding |
c8863a58 KR |
1133 | ".globl" directive -- be careful not to step on storage class |
1134 | in that case. Otherwise, set it to static. */ | |
6efd877d KR |
1135 | if (S_GET_STORAGE_CLASS (symbolP) != C_EXT) |
1136 | { | |
1137 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
fecd2382 | 1138 | } |
6efd877d | 1139 | #endif /* OBJ_COFF */ |
6efd877d KR |
1140 | } |
1141 | else | |
1142 | { | |
85825401 | 1143 | as_bad ("Ignoring attempt to re-define symbol %s.", name); |
6efd877d | 1144 | } |
f8701a3f | 1145 | |
9a7d824a ILT |
1146 | #ifdef BFD_ASSEMBLER |
1147 | subseg_set (current_seg, current_subseg); | |
1148 | #else | |
1149 | subseg_new (current_seg, current_subseg); | |
1150 | #endif | |
1151 | ||
1152 | demand_empty_rest_of_line (); | |
6efd877d | 1153 | } /* s_lcomm() */ |
fecd2382 RP |
1154 | |
1155 | void | |
6efd877d | 1156 | s_long () |
fecd2382 | 1157 | { |
6efd877d | 1158 | cons (4); |
fecd2382 RP |
1159 | } |
1160 | ||
1161 | void | |
6efd877d | 1162 | s_int () |
fecd2382 | 1163 | { |
6efd877d | 1164 | cons (4); |
fecd2382 RP |
1165 | } |
1166 | ||
6efd877d KR |
1167 | void |
1168 | s_lsym () | |
1169 | { | |
1170 | register char *name; | |
1171 | register char c; | |
1172 | register char *p; | |
1173 | register segT segment; | |
1174 | expressionS exp; | |
1175 | register symbolS *symbolP; | |
5ac34ac3 | 1176 | valueT val; |
6efd877d KR |
1177 | |
1178 | /* we permit ANY defined expression: BSD4.2 demands constants */ | |
1179 | name = input_line_pointer; | |
1180 | c = get_symbol_end (); | |
1181 | p = input_line_pointer; | |
1182 | *p = c; | |
1183 | SKIP_WHITESPACE (); | |
1184 | if (*input_line_pointer != ',') | |
1185 | { | |
1186 | *p = 0; | |
1187 | as_bad ("Expected comma after name \"%s\"", name); | |
1188 | *p = c; | |
1189 | ignore_rest_of_line (); | |
1190 | return; | |
1191 | } | |
1192 | input_line_pointer++; | |
5ac34ac3 | 1193 | val = get_absolute_expression (); |
6efd877d KR |
1194 | *p = 0; |
1195 | symbolP = symbol_find_or_make (name); | |
f8701a3f | 1196 | |
c8863a58 KR |
1197 | /* FIXME-SOON I pulled a (&& symbolP->sy_other == 0 && |
1198 | symbolP->sy_desc == 0) out of this test because coff doesn't have | |
1199 | those fields, and I can't see when they'd ever be tripped. I | |
1200 | don't think I understand why they were here so I may have | |
1201 | introduced a bug. As recently as 1.37 didn't have this test | |
1202 | anyway. xoxorich. */ | |
f8701a3f | 1203 | |
9471a360 | 1204 | if (S_GET_SEGMENT (symbolP) == undefined_section |
6efd877d KR |
1205 | && S_GET_VALUE (symbolP) == 0) |
1206 | { | |
c8863a58 KR |
1207 | /* The name might be an undefined .global symbol; be sure to |
1208 | keep the "external" bit. */ | |
6efd877d | 1209 | S_SET_SEGMENT (symbolP, segment); |
5ac34ac3 | 1210 | S_SET_VALUE (symbolP, val); |
6efd877d KR |
1211 | } |
1212 | else | |
1213 | { | |
1214 | as_bad ("Symbol %s already defined", name); | |
1215 | } | |
1216 | *p = c; | |
1217 | demand_empty_rest_of_line (); | |
1218 | } /* s_lsym() */ | |
1219 | ||
1220 | void | |
1221 | s_org () | |
1222 | { | |
1223 | register segT segment; | |
1224 | expressionS exp; | |
1225 | register long temp_fill; | |
1226 | register char *p; | |
9471a360 KR |
1227 | /* Don't believe the documentation of BSD 4.2 AS. There is no such |
1228 | thing as a sub-segment-relative origin. Any absolute origin is | |
1229 | given a warning, then assumed to be segment-relative. Any | |
1230 | segmented origin expression ("foo+42") had better be in the right | |
1231 | segment or the .org is ignored. | |
1232 | ||
1233 | BSD 4.2 AS warns if you try to .org backwards. We cannot because | |
1234 | we never know sub-segment sizes when we are reading code. BSD | |
1235 | will crash trying to emit negative numbers of filler bytes in | |
1236 | certain .orgs. We don't crash, but see as-write for that code. | |
1237 | ||
1238 | Don't make frag if need_pass_2==1. */ | |
6efd877d KR |
1239 | segment = get_known_segmented_expression (&exp); |
1240 | if (*input_line_pointer == ',') | |
1241 | { | |
1242 | input_line_pointer++; | |
1243 | temp_fill = get_absolute_expression (); | |
1244 | } | |
1245 | else | |
1246 | temp_fill = 0; | |
1247 | if (!need_pass_2) | |
1248 | { | |
9471a360 | 1249 | if (segment != now_seg && segment != absolute_section) |
6efd877d KR |
1250 | as_bad ("Invalid segment \"%s\". Segment \"%s\" assumed.", |
1251 | segment_name (segment), segment_name (now_seg)); | |
1252 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp.X_add_symbol, | |
1253 | exp.X_add_number, (char *) 0); | |
1254 | *p = temp_fill; | |
1255 | } /* if (ok to make frag) */ | |
1256 | demand_empty_rest_of_line (); | |
1257 | } /* s_org() */ | |
1258 | ||
1259 | void | |
1260 | s_set () | |
1261 | { | |
1262 | register char *name; | |
1263 | register char delim; | |
1264 | register char *end_name; | |
1265 | register symbolS *symbolP; | |
1266 | ||
1267 | /* | |
c8863a58 KR |
1268 | * Especial apologies for the random logic: |
1269 | * this just grew, and could be parsed much more simply! | |
1270 | * Dean in haste. | |
1271 | */ | |
6efd877d KR |
1272 | name = input_line_pointer; |
1273 | delim = get_symbol_end (); | |
1274 | end_name = input_line_pointer; | |
1275 | *end_name = delim; | |
1276 | SKIP_WHITESPACE (); | |
f8701a3f | 1277 | |
6efd877d KR |
1278 | if (*input_line_pointer != ',') |
1279 | { | |
1280 | *end_name = 0; | |
1281 | as_bad ("Expected comma after name \"%s\"", name); | |
1282 | *end_name = delim; | |
1283 | ignore_rest_of_line (); | |
1284 | return; | |
1285 | } | |
1286 | ||
1287 | input_line_pointer++; | |
1288 | *end_name = 0; | |
1289 | ||
1290 | if (name[0] == '.' && name[1] == '\0') | |
1291 | { | |
1292 | /* Turn '. = mumble' into a .org mumble */ | |
1293 | register segT segment; | |
1294 | expressionS exp; | |
1295 | register char *ptr; | |
1296 | ||
1297 | segment = get_known_segmented_expression (&exp); | |
f8701a3f | 1298 | |
6efd877d KR |
1299 | if (!need_pass_2) |
1300 | { | |
9471a360 | 1301 | if (segment != now_seg && segment != absolute_section) |
6efd877d KR |
1302 | as_bad ("Invalid segment \"%s\". Segment \"%s\" assumed.", |
1303 | segment_name (segment), | |
1304 | segment_name (now_seg)); | |
1305 | ptr = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp.X_add_symbol, | |
1306 | exp.X_add_number, (char *) 0); | |
1307 | *ptr = 0; | |
1308 | } /* if (ok to make frag) */ | |
1309 | ||
1310 | *end_name = delim; | |
1311 | return; | |
1312 | } | |
1313 | ||
1314 | if ((symbolP = symbol_find (name)) == NULL | |
1315 | && (symbolP = md_undefined_symbol (name)) == NULL) | |
1316 | { | |
9471a360 | 1317 | symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag); |
fecd2382 | 1318 | #ifdef OBJ_COFF |
6efd877d KR |
1319 | /* "set" symbols are local unless otherwise specified. */ |
1320 | SF_SET_LOCAL (symbolP); | |
fecd2382 | 1321 | #endif /* OBJ_COFF */ |
f8701a3f | 1322 | |
6efd877d | 1323 | } /* make a new symbol */ |
f8701a3f | 1324 | |
6efd877d | 1325 | symbol_table_insert (symbolP); |
f8701a3f | 1326 | |
6efd877d KR |
1327 | *end_name = delim; |
1328 | pseudo_set (symbolP); | |
1329 | demand_empty_rest_of_line (); | |
1330 | } /* s_set() */ | |
fecd2382 | 1331 | |
6efd877d KR |
1332 | void |
1333 | s_space (mult) | |
1334 | int mult; | |
b53ccaac | 1335 | { |
6efd877d KR |
1336 | long temp_repeat; |
1337 | register long temp_fill; | |
1338 | register char *p; | |
1339 | ||
1340 | /* Just like .fill, but temp_size = 1 */ | |
1341 | if (get_absolute_expression_and_terminator (&temp_repeat) == ',') | |
1342 | { | |
1343 | temp_fill = get_absolute_expression (); | |
1344 | } | |
1345 | else | |
1346 | { | |
1347 | input_line_pointer--; /* Backup over what was not a ','. */ | |
1348 | temp_fill = 0; | |
1349 | } | |
1350 | if (mult) | |
1351 | { | |
bf449293 | 1352 | temp_repeat *= mult; |
6efd877d KR |
1353 | } |
1354 | if (temp_repeat <= 0) | |
1355 | { | |
1356 | as_warn ("Repeat < 0, .space ignored"); | |
1357 | ignore_rest_of_line (); | |
1358 | return; | |
1359 | } | |
1360 | if (!need_pass_2) | |
1361 | { | |
1362 | p = frag_var (rs_fill, 1, 1, (relax_substateT) 0, (symbolS *) 0, | |
1363 | temp_repeat, (char *) 0); | |
1364 | *p = temp_fill; | |
1365 | } | |
1366 | demand_empty_rest_of_line (); | |
1367 | } /* s_space() */ | |
fecd2382 RP |
1368 | |
1369 | void | |
6efd877d | 1370 | s_text () |
fecd2382 | 1371 | { |
6efd877d | 1372 | register int temp; |
f8701a3f | 1373 | |
6efd877d | 1374 | temp = get_absolute_expression (); |
9471a360 KR |
1375 | #ifdef BFD_ASSEMBLER |
1376 | subseg_set (text_section, (subsegT) temp); | |
a39116f1 | 1377 | #else |
9471a360 | 1378 | subseg_new (text_section, (subsegT) temp); |
a39116f1 | 1379 | #endif |
6efd877d KR |
1380 | demand_empty_rest_of_line (); |
1381 | } /* s_text() */ | |
fecd2382 | 1382 | \f |
6efd877d | 1383 | |
6efd877d KR |
1384 | void |
1385 | demand_empty_rest_of_line () | |
1386 | { | |
1387 | SKIP_WHITESPACE (); | |
1388 | if (is_end_of_line[*input_line_pointer]) | |
1389 | { | |
1390 | input_line_pointer++; | |
1391 | } | |
1392 | else | |
1393 | { | |
1394 | ignore_rest_of_line (); | |
1395 | } | |
1396 | /* Return having already swallowed end-of-line. */ | |
1397 | } /* Return pointing just after end-of-line. */ | |
fecd2382 RP |
1398 | |
1399 | void | |
6efd877d | 1400 | ignore_rest_of_line () /* For suspect lines: gives warning. */ |
fecd2382 | 1401 | { |
6efd877d | 1402 | if (!is_end_of_line[*input_line_pointer]) |
f8701a3f | 1403 | { |
6efd877d KR |
1404 | if (isprint (*input_line_pointer)) |
1405 | as_bad ("Rest of line ignored. First ignored character is `%c'.", | |
f8701a3f SC |
1406 | *input_line_pointer); |
1407 | else | |
6efd877d | 1408 | as_bad ("Rest of line ignored. First ignored character valued 0x%x.", |
f8701a3f SC |
1409 | *input_line_pointer); |
1410 | while (input_line_pointer < buffer_limit | |
6efd877d | 1411 | && !is_end_of_line[*input_line_pointer]) |
f8701a3f | 1412 | { |
6efd877d | 1413 | input_line_pointer++; |
f8701a3f SC |
1414 | } |
1415 | } | |
6efd877d KR |
1416 | input_line_pointer++; /* Return pointing just after end-of-line. */ |
1417 | know (is_end_of_line[input_line_pointer[-1]]); | |
fecd2382 RP |
1418 | } |
1419 | ||
1420 | /* | |
1421 | * pseudo_set() | |
1422 | * | |
1423 | * In: Pointer to a symbol. | |
1424 | * Input_line_pointer->expression. | |
1425 | * | |
1426 | * Out: Input_line_pointer->just after any whitespace after expression. | |
1427 | * Tried to set symbol to value of expression. | |
1428 | * Will change symbols type, value, and frag; | |
fecd2382 RP |
1429 | */ |
1430 | void | |
f8701a3f | 1431 | pseudo_set (symbolP) |
6efd877d | 1432 | symbolS *symbolP; |
fecd2382 | 1433 | { |
6efd877d | 1434 | expressionS exp; |
fecd2382 | 1435 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) |
f8701a3f | 1436 | int ext; |
fecd2382 | 1437 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
f8701a3f | 1438 | |
6efd877d | 1439 | know (symbolP); /* NULL pointer is logic error. */ |
fecd2382 | 1440 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) |
9471a360 | 1441 | /* @@ Fix this right for BFD. */ |
6efd877d | 1442 | ext = S_IS_EXTERNAL (symbolP); |
fecd2382 | 1443 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
f8701a3f | 1444 | |
5ac34ac3 | 1445 | (void) expression (&exp); |
f8701a3f | 1446 | |
5ac34ac3 ILT |
1447 | if (exp.X_op == O_illegal) |
1448 | as_bad ("illegal expression; zero assumed"); | |
1449 | else if (exp.X_op == O_absent) | |
1450 | as_bad ("missing expression; zero assumed"); | |
1451 | else if (exp.X_op == O_big) | |
1452 | as_bad ("%s number invalid; zero assumed", | |
1453 | exp.X_add_number > 0 ? "bignum" : "floating point"); | |
1454 | else if (exp.X_op == O_subtract | |
1455 | && (S_GET_SEGMENT (exp.X_add_symbol) | |
1456 | == S_GET_SEGMENT (exp.X_op_symbol)) | |
1457 | && SEG_NORMAL (S_GET_SEGMENT (exp.X_add_symbol)) | |
1458 | && exp.X_add_symbol->sy_frag == exp.X_op_symbol->sy_frag) | |
9471a360 | 1459 | { |
5ac34ac3 ILT |
1460 | exp.X_op = O_constant; |
1461 | exp.X_add_number = (S_GET_VALUE (exp.X_add_symbol) | |
1462 | - S_GET_VALUE (exp.X_op_symbol)); | |
9471a360 | 1463 | } |
5ac34ac3 ILT |
1464 | |
1465 | switch (exp.X_op) | |
9471a360 | 1466 | { |
5ac34ac3 ILT |
1467 | case O_illegal: |
1468 | case O_absent: | |
1469 | case O_big: | |
1470 | exp.X_add_number = 0; | |
1471 | /* Fall through. */ | |
1472 | case O_constant: | |
9471a360 | 1473 | S_SET_SEGMENT (symbolP, absolute_section); |
fecd2382 | 1474 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) |
9471a360 | 1475 | /* @@ Fix this right for BFD. */ |
5ac34ac3 ILT |
1476 | if (ext) |
1477 | S_SET_EXTERNAL (symbolP); | |
6efd877d | 1478 | else |
6efd877d | 1479 | S_CLEAR_EXTERNAL (symbolP); |
fecd2382 | 1480 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
6efd877d KR |
1481 | S_SET_VALUE (symbolP, exp.X_add_number); |
1482 | symbolP->sy_frag = &zero_address_frag; | |
5ac34ac3 | 1483 | break; |
f8701a3f | 1484 | |
5ac34ac3 ILT |
1485 | case O_register: |
1486 | S_SET_SEGMENT (symbolP, reg_section); | |
1487 | S_SET_VALUE (symbolP, exp.X_add_number); | |
1488 | symbolP->sy_frag = &zero_address_frag; | |
1489 | break; | |
1490 | ||
1491 | case O_symbol: | |
1492 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section) | |
1493 | symbolP->sy_value = exp; | |
6efd877d KR |
1494 | else |
1495 | { | |
5ac34ac3 ILT |
1496 | S_SET_SEGMENT (symbolP, S_GET_SEGMENT (exp.X_add_symbol)); |
1497 | #if defined(OBJ_AOUT) | defined(OBJ_BOUT) | |
1498 | /* @@ Fix this right for BFD! */ | |
1499 | if (ext) | |
1500 | S_SET_EXTERNAL (symbolP); | |
1501 | else | |
1502 | S_CLEAR_EXTERNAL (symbolP); | |
fecd2382 | 1503 | #endif /* OBJ_AOUT or OBJ_BOUT */ |
5ac34ac3 ILT |
1504 | S_SET_VALUE (symbolP, |
1505 | exp.X_add_number + S_GET_VALUE (exp.X_add_symbol)); | |
1506 | symbolP->sy_frag = exp.X_add_symbol->sy_frag; | |
1507 | } | |
1508 | break; | |
f8701a3f | 1509 | |
5ac34ac3 ILT |
1510 | default: |
1511 | /* The value is some complex expression. | |
1512 | FIXME: Should we set the segment to anything? */ | |
1513 | symbolP->sy_value = exp; | |
1514 | break; | |
f8701a3f | 1515 | } |
fecd2382 RP |
1516 | } |
1517 | \f | |
1518 | /* | |
1519 | * cons() | |
1520 | * | |
1521 | * CONStruct more frag of .bytes, or .words etc. | |
1522 | * Should need_pass_2 be 1 then emit no frag(s). | |
1523 | * This understands EXPRESSIONS, as opposed to big_cons(). | |
1524 | * | |
1525 | * Bug (?) | |
1526 | * | |
1527 | * This has a split personality. We use expression() to read the | |
1528 | * value. We can detect if the value won't fit in a byte or word. | |
1529 | * But we can't detect if expression() discarded significant digits | |
1530 | * in the case of a long. Not worth the crocks required to fix it. | |
1531 | */ | |
1532 | ||
40324362 KR |
1533 | /* Select a parser for cons expressions. */ |
1534 | ||
1535 | /* Some targets need to parse the expression in various fancy ways. | |
1536 | You can define TC_PARSE_CONS_EXPRESSION to do whatever you like | |
1537 | (for example, the HPPA does this). Otherwise, you can define | |
1538 | BITFIELD_CONS_EXPRESSIONS to permit bitfields to be specified, or | |
1539 | REPEAT_CONS_EXPRESSIONS to permit repeat counts. If none of these | |
1540 | are defined, which is the normal case, then only simple expressions | |
1541 | are permitted. */ | |
1542 | ||
1543 | #ifndef TC_PARSE_CONS_EXPRESSION | |
1544 | #ifdef BITFIELD_CONS_EXPRESSIONS | |
1545 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_bitfield_cons (EXP, NBYTES) | |
1546 | static void | |
1547 | parse_bitfield_cons PARAMS ((expressionS *exp, unsigned int nbytes)); | |
1548 | #endif | |
1549 | #ifdef MRI | |
1550 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_mri_cons (EXP) | |
1551 | static void | |
1552 | parse_mri_cons PARAMS ((expressionS *exp)); | |
1553 | #endif | |
1554 | #ifdef REPEAT_CONS_EXPRESSIONS | |
1555 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_repeat_cons (EXP, NBYTES) | |
1556 | static void | |
1557 | parse_repeat_cons PARAMS ((expressionS *exp, unsigned int nbytes)); | |
1558 | #endif | |
1559 | ||
1560 | /* If we haven't gotten one yet, just call expression. */ | |
1561 | #ifndef TC_PARSE_CONS_EXPRESSION | |
1562 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) expression (EXP) | |
1563 | #endif | |
1564 | #endif | |
1565 | ||
6efd877d KR |
1566 | /* worker to do .byte etc statements */ |
1567 | /* clobbers input_line_pointer, checks */ | |
1568 | /* end-of-line. */ | |
1569 | void | |
1570 | cons (nbytes) | |
1571 | register unsigned int nbytes; /* 1=.byte, 2=.word, 4=.long */ | |
fecd2382 | 1572 | { |
6efd877d | 1573 | expressionS exp; |
f8701a3f | 1574 | |
40324362 | 1575 | if (is_it_end_of_statement ()) |
6efd877d | 1576 | { |
40324362 KR |
1577 | demand_empty_rest_of_line (); |
1578 | return; | |
6efd877d | 1579 | } |
40324362 KR |
1580 | |
1581 | do | |
6efd877d | 1582 | { |
40324362 KR |
1583 | TC_PARSE_CONS_EXPRESSION (&exp, nbytes); |
1584 | emit_expr (&exp, nbytes); | |
1585 | } | |
1586 | while (*input_line_pointer++ == ','); | |
1587 | ||
1588 | input_line_pointer--; /* Put terminator back into stream. */ | |
1589 | demand_empty_rest_of_line (); | |
1590 | } /* cons() */ | |
f8701a3f | 1591 | |
40324362 KR |
1592 | /* Put the contents of expression EXP into the object file using |
1593 | NBYTES bytes. If need_pass_2 is 1, this does nothing. */ | |
f8701a3f | 1594 | |
40324362 KR |
1595 | void |
1596 | emit_expr (exp, nbytes) | |
1597 | expressionS *exp; | |
1598 | unsigned int nbytes; | |
1599 | { | |
5ac34ac3 | 1600 | operatorT op; |
40324362 | 1601 | register char *p; |
f8701a3f | 1602 | |
40324362 KR |
1603 | /* Don't do anything if we are going to make another pass. */ |
1604 | if (need_pass_2) | |
1605 | return; | |
1606 | ||
5ac34ac3 | 1607 | op = exp->X_op; |
40324362 | 1608 | |
5ac34ac3 | 1609 | if (op == O_absent || op == O_illegal) |
6efd877d | 1610 | { |
5ac34ac3 ILT |
1611 | as_warn ("zero assumed for missing expression"); |
1612 | exp->X_add_number = 0; | |
1613 | op = O_constant; | |
6efd877d | 1614 | } |
5ac34ac3 | 1615 | else if (op == O_big) |
6efd877d | 1616 | { |
5ac34ac3 ILT |
1617 | as_bad ("%s number invalid; zero assumed", |
1618 | exp->X_add_number > 0 ? "bignum" : "floating point"); | |
40324362 | 1619 | exp->X_add_number = 0; |
5ac34ac3 | 1620 | op = O_constant; |
40324362 | 1621 | } |
5ac34ac3 | 1622 | else if (op == O_register) |
6efd877d | 1623 | { |
5ac34ac3 ILT |
1624 | as_warn ("register value used as expression"); |
1625 | op = O_constant; | |
40324362 | 1626 | } |
6efd877d | 1627 | |
40324362 | 1628 | p = frag_more (nbytes); |
6efd877d | 1629 | |
40324362 KR |
1630 | #ifndef WORKING_DOT_WORD |
1631 | /* If we have the difference of two symbols in a word, save it on | |
1632 | the broken_words list. See the code in write.c. */ | |
5ac34ac3 | 1633 | if (op == O_subtract && nbytes == 2) |
40324362 KR |
1634 | { |
1635 | struct broken_word *x; | |
1636 | ||
1637 | x = (struct broken_word *) xmalloc (sizeof (struct broken_word)); | |
1638 | x->next_broken_word = broken_words; | |
1639 | broken_words = x; | |
1640 | x->frag = frag_now; | |
1641 | x->word_goes_here = p; | |
1642 | x->dispfrag = 0; | |
1643 | x->add = exp->X_add_symbol; | |
5ac34ac3 | 1644 | x->sub = exp->X_op_symbol; |
40324362 KR |
1645 | x->addnum = exp->X_add_number; |
1646 | x->added = 0; | |
1647 | new_broken_words++; | |
1648 | return; | |
1649 | } | |
f8701a3f | 1650 | #endif |
6efd877d | 1651 | |
5ac34ac3 | 1652 | if (op == O_constant) |
40324362 KR |
1653 | { |
1654 | register long get; | |
1655 | register long use; | |
1656 | register long mask; | |
1657 | register long unmask; | |
1658 | ||
1659 | /* JF << of >= number of bits in the object is undefined. In | |
1660 | particular SPARC (Sun 4) has problems */ | |
1661 | if (nbytes >= sizeof (long)) | |
1662 | mask = 0; | |
1663 | else | |
1664 | mask = ~0 << (BITS_PER_CHAR * nbytes); /* Don't store these bits. */ | |
6efd877d | 1665 | |
40324362 | 1666 | unmask = ~mask; /* Do store these bits. */ |
6efd877d | 1667 | |
40324362 KR |
1668 | #ifdef NEVER |
1669 | "Do this mod if you want every overflow check to assume SIGNED 2's complement data."; | |
1670 | mask = ~(unmask >> 1); /* Includes sign bit now. */ | |
1671 | #endif | |
6efd877d | 1672 | |
40324362 KR |
1673 | get = exp->X_add_number; |
1674 | use = get & unmask; | |
1675 | if ((get & mask) != 0 && (get & mask) != mask) | |
1676 | { /* Leading bits contain both 0s & 1s. */ | |
1677 | as_warn ("Value 0x%x truncated to 0x%x.", get, use); | |
1678 | } | |
1679 | md_number_to_chars (p, use, nbytes); /* put bytes in right order. */ | |
1680 | } | |
1681 | else | |
1682 | { | |
1683 | md_number_to_chars (p, (long) 0, nbytes); | |
6efd877d | 1684 | |
40324362 KR |
1685 | /* Now we need to generate a fixS to record the symbol value. |
1686 | This is easy for BFD. For other targets it can be more | |
1687 | complex. For very complex cases (currently, the HPPA and | |
1688 | NS32K), you can define TC_CONS_FIX_NEW to do whatever you | |
1689 | want. For simpler cases, you can define TC_CONS_RELOC to be | |
1690 | the name of the reloc code that should be stored in the fixS. | |
1691 | If neither is defined, the code uses NO_RELOC if it is | |
1692 | defined, and otherwise uses 0. */ | |
6efd877d | 1693 | |
40324362 | 1694 | #ifdef BFD_ASSEMBLER |
5ac34ac3 ILT |
1695 | fix_new_exp (frag_now, p - frag_now->fr_literal, nbytes, exp, 0, |
1696 | /* @@ Should look at CPU word size. */ | |
1697 | BFD_RELOC_32); | |
40324362 KR |
1698 | #else |
1699 | #ifdef TC_CONS_FIX_NEW | |
1700 | TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp); | |
1701 | #else | |
1702 | /* Figure out which reloc number to use. Use TC_CONS_RELOC if | |
1703 | it is defined, otherwise use NO_RELOC if it is defined, | |
1704 | otherwise use 0. */ | |
1705 | #ifndef TC_CONS_RELOC | |
1706 | #ifdef NO_RELOC | |
1707 | #define TC_CONS_RELOC NO_RELOC | |
1708 | #else | |
1709 | #define TC_CONS_RELOC 0 | |
1710 | #endif | |
1711 | #endif | |
5ac34ac3 ILT |
1712 | fix_new_exp (frag_now, p - frag_now->fr_literal, nbytes, exp, 0, |
1713 | TC_CONS_RELOC); | |
40324362 KR |
1714 | #endif /* TC_CONS_FIX_NEW */ |
1715 | #endif /* BFD_ASSEMBLER */ | |
1716 | } | |
1717 | } | |
1718 | \f | |
1719 | #ifdef BITFIELD_CONS_EXPRESSIONS | |
6efd877d | 1720 | |
40324362 KR |
1721 | /* i960 assemblers, (eg, asm960), allow bitfields after ".byte" as |
1722 | w:x,y:z, where w and y are bitwidths and x and y are values. They | |
1723 | then pack them all together. We do a little better in that we allow | |
1724 | them in words, longs, etc. and we'll pack them in target byte order | |
1725 | for you. | |
6efd877d | 1726 | |
40324362 KR |
1727 | The rules are: pack least significat bit first, if a field doesn't |
1728 | entirely fit, put it in the next unit. Overflowing the bitfield is | |
1729 | explicitly *not* even a warning. The bitwidth should be considered | |
1730 | a "mask". | |
6efd877d | 1731 | |
40324362 KR |
1732 | To use this function the tc-XXX.h file should define |
1733 | BITFIELD_CONS_EXPRESSIONS. */ | |
f8701a3f | 1734 | |
40324362 KR |
1735 | static void |
1736 | parse_bitfield_cons (exp, nbytes) | |
1737 | expressionS *exp; | |
1738 | unsigned int nbytes; | |
1739 | { | |
1740 | unsigned int bits_available = BITS_PER_CHAR * nbytes; | |
1741 | char *hold = input_line_pointer; | |
f8701a3f | 1742 | |
5ac34ac3 | 1743 | (void) expression (exp); |
f8701a3f | 1744 | |
40324362 KR |
1745 | if (*input_line_pointer == ':') |
1746 | { /* bitfields */ | |
1747 | long value = 0; | |
f8701a3f | 1748 | |
40324362 KR |
1749 | for (;;) |
1750 | { | |
1751 | unsigned long width; | |
f8701a3f | 1752 | |
40324362 KR |
1753 | if (*input_line_pointer != ':') |
1754 | { | |
1755 | input_line_pointer = hold; | |
1756 | break; | |
1757 | } /* next piece is not a bitfield */ | |
1758 | ||
1759 | /* In the general case, we can't allow | |
1760 | full expressions with symbol | |
1761 | differences and such. The relocation | |
1762 | entries for symbols not defined in this | |
1763 | assembly would require arbitrary field | |
1764 | widths, positions, and masks which most | |
1765 | of our current object formats don't | |
1766 | support. | |
1767 | ||
1768 | In the specific case where a symbol | |
1769 | *is* defined in this assembly, we | |
1770 | *could* build fixups and track it, but | |
1771 | this could lead to confusion for the | |
1772 | backends. I'm lazy. I'll take any | |
1773 | SEG_ABSOLUTE. I think that means that | |
1774 | you can use a previous .set or | |
1775 | .equ type symbol. xoxorich. */ | |
1776 | ||
5ac34ac3 | 1777 | if (exp->X_op == O_absent) |
6efd877d | 1778 | { |
5ac34ac3 | 1779 | as_warn ("using a bit field width of zero"); |
40324362 | 1780 | exp->X_add_number = 0; |
5ac34ac3 | 1781 | exp->X_op = O_constant; |
40324362 KR |
1782 | } /* implied zero width bitfield */ |
1783 | ||
5ac34ac3 | 1784 | if (exp->X_op != O_constant) |
6efd877d | 1785 | { |
40324362 | 1786 | *input_line_pointer = '\0'; |
5ac34ac3 | 1787 | as_bad ("field width \"%s\" too complex for a bitfield", hold); |
40324362 KR |
1788 | *input_line_pointer = ':'; |
1789 | demand_empty_rest_of_line (); | |
1790 | return; | |
1791 | } /* too complex */ | |
1792 | ||
1793 | if ((width = exp->X_add_number) > (BITS_PER_CHAR * nbytes)) | |
9471a360 | 1794 | { |
5ac34ac3 | 1795 | as_warn ("field width %d too big to fit in %d bytes: truncated to %d bits", |
40324362 KR |
1796 | width, nbytes, (BITS_PER_CHAR * nbytes)); |
1797 | width = BITS_PER_CHAR * nbytes; | |
1798 | } /* too big */ | |
1799 | ||
1800 | if (width > bits_available) | |
9471a360 | 1801 | { |
40324362 KR |
1802 | /* FIXME-SOMEDAY: backing up and reparsing is wasteful. */ |
1803 | input_line_pointer = hold; | |
1804 | exp->X_add_number = value; | |
1805 | break; | |
1806 | } /* won't fit */ | |
1807 | ||
1808 | hold = ++input_line_pointer; /* skip ':' */ | |
1809 | ||
5ac34ac3 ILT |
1810 | (void) expression (exp); |
1811 | if (exp->X_op != O_constant) | |
9471a360 | 1812 | { |
40324362 KR |
1813 | char cache = *input_line_pointer; |
1814 | ||
1815 | *input_line_pointer = '\0'; | |
5ac34ac3 | 1816 | as_bad ("field value \"%s\" too complex for a bitfield", hold); |
40324362 KR |
1817 | *input_line_pointer = cache; |
1818 | demand_empty_rest_of_line (); | |
1819 | return; | |
1820 | } /* too complex */ | |
1821 | ||
5ac34ac3 ILT |
1822 | value |= ((~(-1 << width) & exp->X_add_number) |
1823 | << ((BITS_PER_CHAR * nbytes) - bits_available)); | |
40324362 KR |
1824 | |
1825 | if ((bits_available -= width) == 0 | |
1826 | || is_it_end_of_statement () | |
1827 | || *input_line_pointer != ',') | |
1828 | { | |
1829 | break; | |
1830 | } /* all the bitfields we're gonna get */ | |
1831 | ||
1832 | hold = ++input_line_pointer; | |
5ac34ac3 | 1833 | (void) expression (exp); |
40324362 KR |
1834 | } /* forever loop */ |
1835 | ||
1836 | exp->X_add_number = value; | |
5ac34ac3 | 1837 | exp->X_op = O_constant; |
40324362 KR |
1838 | } /* if looks like a bitfield */ |
1839 | } /* parse_bitfield_cons() */ | |
1840 | ||
1841 | #endif /* BITFIELD_CONS_EXPRESSIONS */ | |
1842 | \f | |
1843 | #ifdef MRI | |
1844 | ||
1845 | static void | |
1846 | parse_mri_cons (exp, nbytes) | |
1847 | expressionS *exp; | |
1848 | unsigned int nbytes; | |
1849 | { | |
1850 | if (*input_line_pointer == '\'') | |
1851 | { | |
1852 | /* An MRI style string, cut into as many bytes as will fit into | |
1853 | a nbyte chunk, left justify if necessary, and separate with | |
1854 | commas so we can try again later */ | |
1855 | int scan = 0; | |
1856 | unsigned int result = 0; | |
1857 | input_line_pointer++; | |
1858 | for (scan = 0; scan < nbytes; scan++) | |
1859 | { | |
1860 | if (*input_line_pointer == '\'') | |
1861 | { | |
1862 | if (input_line_pointer[1] == '\'') | |
6efd877d | 1863 | { |
40324362 | 1864 | input_line_pointer++; |
f8701a3f | 1865 | } |
40324362 KR |
1866 | else |
1867 | break; | |
9471a360 | 1868 | } |
40324362 KR |
1869 | result = (result << 8) | (*input_line_pointer++); |
1870 | } | |
f8701a3f | 1871 | |
40324362 KR |
1872 | /* Left justify */ |
1873 | while (scan < nbytes) | |
1874 | { | |
1875 | result <<= 8; | |
1876 | scan++; | |
1877 | } | |
1878 | /* Create correct expression */ | |
5ac34ac3 | 1879 | exp->X_op = O_constant; |
40324362 | 1880 | exp->X_add_number = result; |
40324362 KR |
1881 | /* Fake it so that we can read the next char too */ |
1882 | if (input_line_pointer[0] != '\'' || | |
1883 | (input_line_pointer[0] == '\'' && input_line_pointer[1] == '\'')) | |
1884 | { | |
1885 | input_line_pointer -= 2; | |
1886 | input_line_pointer[0] = ','; | |
1887 | input_line_pointer[1] = '\''; | |
1888 | } | |
1889 | else | |
1890 | input_line_pointer++; | |
1891 | } | |
1892 | else | |
1893 | expression (&exp); | |
1894 | } | |
1895 | ||
1896 | #endif /* MRI */ | |
1897 | \f | |
1898 | #ifdef REPEAT_CONS_EXPRESSIONS | |
1899 | ||
1900 | /* Parse a repeat expression for cons. This is used by the MIPS | |
1901 | assembler. The format is NUMBER:COUNT; NUMBER appears in the | |
1902 | object file COUNT times. | |
1903 | ||
1904 | To use this for a target, define REPEAT_CONS_EXPRESSIONS. */ | |
1905 | ||
1906 | static void | |
1907 | parse_repeat_cons (exp, nbytes) | |
1908 | expressionS *exp; | |
1909 | unsigned int nbytes; | |
1910 | { | |
1911 | expressionS count; | |
40324362 KR |
1912 | register int i; |
1913 | ||
1914 | expression (exp); | |
1915 | ||
1916 | if (*input_line_pointer != ':') | |
1917 | { | |
1918 | /* No repeat count. */ | |
1919 | return; | |
1920 | } | |
1921 | ||
1922 | ++input_line_pointer; | |
5ac34ac3 ILT |
1923 | expression (&count); |
1924 | if (count.X_op != O_constant | |
40324362 KR |
1925 | || count.X_add_number <= 0) |
1926 | { | |
1927 | as_warn ("Unresolvable or nonpositive repeat count; using 1"); | |
1928 | return; | |
1929 | } | |
1930 | ||
1931 | /* The cons function is going to output this expression once. So we | |
1932 | output it count - 1 times. */ | |
1933 | for (i = count.X_add_number - 1; i > 0; i--) | |
1934 | emit_expr (exp, nbytes); | |
1935 | } | |
1936 | ||
1937 | #endif /* REPEAT_CONS_EXPRESSIONS */ | |
fecd2382 RP |
1938 | \f |
1939 | /* | |
1940 | * big_cons() | |
1941 | * | |
1942 | * CONStruct more frag(s) of .quads, or .octa etc. | |
1943 | * Makes 0 or more new frags. | |
1944 | * If need_pass_2 == 1, generate no frag. | |
1945 | * This understands only bignums, not expressions. Cons() understands | |
1946 | * expressions. | |
1947 | * | |
1948 | * Constants recognised are '0...'(octal) '0x...'(hex) '...'(decimal). | |
1949 | * | |
1950 | * This creates objects with struct obstack_control objs, destroying | |
1951 | * any context objs held about a partially completed object. Beware! | |
1952 | * | |
1953 | * | |
1954 | * I think it sucks to have 2 different types of integers, with 2 | |
1955 | * routines to read them, store them etc. | |
1956 | * It would be nicer to permit bignums in expressions and only | |
1957 | * complain if the result overflowed. However, due to "efficiency"... | |
1958 | */ | |
1959 | /* worker to do .quad etc statements */ | |
1960 | /* clobbers input_line_pointer, checks */ | |
1961 | /* end-of-line. */ | |
1962 | /* 8=.quad 16=.octa ... */ | |
1963 | ||
6efd877d KR |
1964 | void |
1965 | big_cons (nbytes) | |
f8701a3f | 1966 | register int nbytes; |
fecd2382 | 1967 | { |
6efd877d | 1968 | register char c; /* input_line_pointer->c. */ |
f8701a3f | 1969 | register int radix; |
6efd877d KR |
1970 | register long length; /* Number of chars in an object. */ |
1971 | register int digit; /* Value of 1 digit. */ | |
1972 | register int carry; /* For multi-precision arithmetic. */ | |
1973 | register int work; /* For multi-precision arithmetic. */ | |
1974 | register char *p; /* For multi-precision arithmetic. */ | |
f8701a3f | 1975 | |
9471a360 | 1976 | extern const char hex_value[]; /* In hex_value.c. */ |
f8701a3f SC |
1977 | |
1978 | /* | |
1979 | * The following awkward logic is to parse ZERO or more strings, | |
1980 | * comma seperated. Recall an expression includes its leading & | |
1981 | * trailing blanks. We fake a leading ',' if there is (supposed to | |
1982 | * be) a 1st expression, and keep demanding 1 expression for each ','. | |
1983 | */ | |
6efd877d | 1984 | if (is_it_end_of_statement ()) |
f8701a3f SC |
1985 | { |
1986 | c = 0; /* Skip loop. */ | |
1987 | } | |
1988 | else | |
1989 | { | |
1990 | c = ','; /* Do loop. */ | |
6efd877d | 1991 | --input_line_pointer; |
f8701a3f SC |
1992 | } |
1993 | while (c == ',') | |
1994 | { | |
6efd877d KR |
1995 | ++input_line_pointer; |
1996 | SKIP_WHITESPACE (); | |
1997 | c = *input_line_pointer; | |
f8701a3f SC |
1998 | /* C contains 1st non-blank character of what we hope is a number. */ |
1999 | if (c == '0') | |
2000 | { | |
6efd877d KR |
2001 | c = *++input_line_pointer; |
2002 | if (c == 'x' || c == 'X') | |
fecd2382 | 2003 | { |
6efd877d | 2004 | c = *++input_line_pointer; |
f8701a3f | 2005 | radix = 16; |
fecd2382 | 2006 | } |
f8701a3f | 2007 | else |
fecd2382 | 2008 | { |
f8701a3f | 2009 | radix = 8; |
fecd2382 | 2010 | } |
f8701a3f SC |
2011 | } |
2012 | else | |
2013 | { | |
2014 | radix = 10; | |
2015 | } | |
2016 | /* | |
2017 | * This feature (?) is here to stop people worrying about | |
2018 | * mysterious zero constants: which is what they get when | |
2019 | * they completely omit digits. | |
2020 | */ | |
6efd877d KR |
2021 | if (hex_value[c] >= radix) |
2022 | { | |
2023 | as_bad ("Missing digits. 0 assumed."); | |
2024 | } | |
2025 | bignum_high = bignum_low - 1; /* Start constant with 0 chars. */ | |
2026 | for (; (digit = hex_value[c]) < radix; c = *++input_line_pointer) | |
f8701a3f SC |
2027 | { |
2028 | /* Multiply existing number by radix, then add digit. */ | |
2029 | carry = digit; | |
6efd877d | 2030 | for (p = bignum_low; p <= bignum_high; p++) |
fecd2382 | 2031 | { |
f8701a3f SC |
2032 | work = (*p & MASK_CHAR) * radix + carry; |
2033 | *p = work & MASK_CHAR; | |
2034 | carry = work >> BITS_PER_CHAR; | |
fecd2382 | 2035 | } |
f8701a3f SC |
2036 | if (carry) |
2037 | { | |
6efd877d KR |
2038 | grow_bignum (); |
2039 | *bignum_high = carry & MASK_CHAR; | |
2040 | know ((carry & ~MASK_CHAR) == 0); | |
f8701a3f SC |
2041 | } |
2042 | } | |
2043 | length = bignum_high - bignum_low + 1; | |
2044 | if (length > nbytes) | |
2045 | { | |
6efd877d | 2046 | as_warn ("Most significant bits truncated in integer constant."); |
f8701a3f SC |
2047 | } |
2048 | else | |
2049 | { | |
2050 | register long leading_zeroes; | |
fecd2382 | 2051 | |
6efd877d KR |
2052 | for (leading_zeroes = nbytes - length; |
2053 | leading_zeroes; | |
2054 | leading_zeroes--) | |
a39116f1 | 2055 | { |
6efd877d KR |
2056 | grow_bignum (); |
2057 | *bignum_high = 0; | |
a39116f1 | 2058 | } |
f8701a3f | 2059 | } |
6efd877d | 2060 | if (!need_pass_2) |
f8701a3f | 2061 | { |
9c6d3f66 | 2062 | char *src = bignum_low; |
f8701a3f | 2063 | p = frag_more (nbytes); |
9c6d3f66 KR |
2064 | if (target_big_endian) |
2065 | { | |
2066 | int i; | |
2067 | for (i = nbytes - 1; i >= 0; i--) | |
2068 | p[i] = *src++; | |
2069 | } | |
2070 | else | |
4380166d | 2071 | memcpy (p, bignum_low, (int) nbytes); |
f8701a3f SC |
2072 | } |
2073 | /* C contains character after number. */ | |
6efd877d KR |
2074 | SKIP_WHITESPACE (); |
2075 | c = *input_line_pointer; | |
f8701a3f SC |
2076 | /* C contains 1st non-blank character after number. */ |
2077 | } | |
6efd877d KR |
2078 | demand_empty_rest_of_line (); |
2079 | } /* big_cons() */ | |
f8701a3f | 2080 | |
6efd877d KR |
2081 | /* Extend bignum by 1 char. */ |
2082 | static void | |
2083 | grow_bignum () | |
2084 | { | |
f8701a3f SC |
2085 | register long length; |
2086 | ||
6efd877d | 2087 | bignum_high++; |
f8701a3f SC |
2088 | if (bignum_high >= bignum_limit) |
2089 | { | |
2090 | length = bignum_limit - bignum_low; | |
6efd877d | 2091 | bignum_low = xrealloc (bignum_low, length + length); |
f8701a3f SC |
2092 | bignum_high = bignum_low + length; |
2093 | bignum_limit = bignum_low + length + length; | |
2094 | } | |
6efd877d | 2095 | } /* grow_bignum(); */ |
fecd2382 RP |
2096 | \f |
2097 | /* | |
2098 | * float_cons() | |
2099 | * | |
2100 | * CONStruct some more frag chars of .floats .ffloats etc. | |
2101 | * Makes 0 or more new frags. | |
2102 | * If need_pass_2 == 1, no frags are emitted. | |
2103 | * This understands only floating literals, not expressions. Sorry. | |
2104 | * | |
2105 | * A floating constant is defined by atof_generic(), except it is preceded | |
2106 | * by 0d 0f 0g or 0h. After observing the STRANGE way my BSD AS does its | |
2107 | * reading, I decided to be incompatible. This always tries to give you | |
2108 | * rounded bits to the precision of the pseudo-op. Former AS did premature | |
2109 | * truncatation, restored noisy bits instead of trailing 0s AND gave you | |
2110 | * a choice of 2 flavours of noise according to which of 2 floating-point | |
2111 | * scanners you directed AS to use. | |
2112 | * | |
2113 | * In: input_line_pointer->whitespace before, or '0' of flonum. | |
2114 | * | |
2115 | */ | |
2116 | ||
6efd877d KR |
2117 | void /* JF was static, but can't be if VAX.C is goning to use it */ |
2118 | float_cons (float_type) /* Worker to do .float etc statements. */ | |
2119 | /* Clobbers input_line-pointer, checks end-of-line. */ | |
f8701a3f | 2120 | register int float_type; /* 'f':.ffloat ... 'F':.float ... */ |
fecd2382 | 2121 | { |
6efd877d | 2122 | register char *p; |
6efd877d KR |
2123 | int length; /* Number of chars in an object. */ |
2124 | register char *err; /* Error from scanning floating literal. */ | |
2125 | char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT]; | |
f8701a3f | 2126 | |
6efd877d | 2127 | if (is_it_end_of_statement ()) |
f8701a3f | 2128 | { |
1e9cf565 ILT |
2129 | demand_empty_rest_of_line (); |
2130 | return; | |
f8701a3f | 2131 | } |
1e9cf565 ILT |
2132 | |
2133 | do | |
f8701a3f SC |
2134 | { |
2135 | /* input_line_pointer->1st char of a flonum (we hope!). */ | |
6efd877d | 2136 | SKIP_WHITESPACE (); |
1e9cf565 | 2137 | |
f8701a3f SC |
2138 | /* Skip any 0{letter} that may be present. Don't even check if the |
2139 | * letter is legal. Someone may invent a "z" format and this routine | |
2140 | * has no use for such information. Lusers beware: you get | |
2141 | * diagnostics if your input is ill-conditioned. | |
2142 | */ | |
6efd877d KR |
2143 | if (input_line_pointer[0] == '0' && isalpha (input_line_pointer[1])) |
2144 | input_line_pointer += 2; | |
f8701a3f SC |
2145 | |
2146 | err = md_atof (float_type, temp, &length); | |
6efd877d KR |
2147 | know (length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT); |
2148 | know (length > 0); | |
9a7d824a | 2149 | if (err && *err) |
f8701a3f | 2150 | { |
6efd877d KR |
2151 | as_bad ("Bad floating literal: %s", err); |
2152 | ignore_rest_of_line (); | |
1e9cf565 | 2153 | return; |
f8701a3f | 2154 | } |
1e9cf565 ILT |
2155 | |
2156 | if (!need_pass_2) | |
f8701a3f | 2157 | { |
1e9cf565 ILT |
2158 | int count; |
2159 | ||
2160 | count = 1; | |
2161 | ||
2162 | #ifdef REPEAT_CONS_EXPRESSIONS | |
2163 | if (*input_line_pointer == ':') | |
2164 | { | |
1e9cf565 ILT |
2165 | expressionS count_exp; |
2166 | ||
2167 | ++input_line_pointer; | |
5ac34ac3 ILT |
2168 | expression (&count_exp); |
2169 | if (count_exp.X_op != O_constant | |
1e9cf565 ILT |
2170 | || count_exp.X_add_number <= 0) |
2171 | { | |
5ac34ac3 | 2172 | as_warn ("unresolvable or nonpositive repeat count; using 1"); |
1e9cf565 ILT |
2173 | } |
2174 | else | |
2175 | count = count_exp.X_add_number; | |
2176 | } | |
2177 | #endif | |
2178 | ||
2179 | while (--count >= 0) | |
a39116f1 | 2180 | { |
f8701a3f | 2181 | p = frag_more (length); |
4380166d | 2182 | memcpy (p, temp, length); |
a39116f1 | 2183 | } |
542e1629 | 2184 | } |
1e9cf565 | 2185 | SKIP_WHITESPACE (); |
f8701a3f | 2186 | } |
1e9cf565 ILT |
2187 | while (*input_line_pointer++ == ','); |
2188 | ||
2189 | --input_line_pointer; /* Put terminator back into stream. */ | |
6efd877d | 2190 | demand_empty_rest_of_line (); |
f8701a3f | 2191 | } /* float_cons() */ |
fecd2382 RP |
2192 | \f |
2193 | /* | |
2194 | * stringer() | |
2195 | * | |
2196 | * We read 0 or more ',' seperated, double-quoted strings. | |
2197 | * | |
2198 | * Caller should have checked need_pass_2 is FALSE because we don't check it. | |
2199 | */ | |
a39116f1 RP |
2200 | |
2201 | ||
6efd877d KR |
2202 | void |
2203 | stringer (append_zero) /* Worker to do .ascii etc statements. */ | |
2204 | /* Checks end-of-line. */ | |
f8701a3f | 2205 | register int append_zero; /* 0: don't append '\0', else 1 */ |
fecd2382 | 2206 | { |
f8701a3f | 2207 | register unsigned int c; |
6efd877d | 2208 | |
f8701a3f SC |
2209 | /* |
2210 | * The following awkward logic is to parse ZERO or more strings, | |
2211 | * comma seperated. Recall a string expression includes spaces | |
2212 | * before the opening '\"' and spaces after the closing '\"'. | |
2213 | * We fake a leading ',' if there is (supposed to be) | |
2214 | * a 1st, expression. We keep demanding expressions for each | |
2215 | * ','. | |
2216 | */ | |
6efd877d KR |
2217 | if (is_it_end_of_statement ()) |
2218 | { | |
2219 | c = 0; /* Skip loop. */ | |
2220 | ++input_line_pointer; /* Compensate for end of loop. */ | |
2221 | } | |
f8701a3f | 2222 | else |
6efd877d KR |
2223 | { |
2224 | c = ','; /* Do loop. */ | |
2225 | } | |
2226 | while (c == ',' || c == '<' || c == '"') | |
2227 | { | |
2228 | SKIP_WHITESPACE (); | |
2229 | switch (*input_line_pointer) | |
2230 | { | |
2231 | case '\"': | |
2232 | ++input_line_pointer; /*->1st char of string. */ | |
2233 | while (is_a_char (c = next_char_of_string ())) | |
2234 | { | |
2235 | FRAG_APPEND_1_CHAR (c); | |
2236 | } | |
2237 | if (append_zero) | |
2238 | { | |
2239 | FRAG_APPEND_1_CHAR (0); | |
2240 | } | |
2241 | know (input_line_pointer[-1] == '\"'); | |
2242 | break; | |
2243 | case '<': | |
2244 | input_line_pointer++; | |
2245 | c = get_single_number (); | |
2246 | FRAG_APPEND_1_CHAR (c); | |
2247 | if (*input_line_pointer != '>') | |
2248 | { | |
2249 | as_bad ("Expected <nn>"); | |
2250 | } | |
2251 | input_line_pointer++; | |
2252 | break; | |
2253 | case ',': | |
2254 | input_line_pointer++; | |
2255 | break; | |
2256 | } | |
2257 | SKIP_WHITESPACE (); | |
2258 | c = *input_line_pointer; | |
f8701a3f | 2259 | } |
f8701a3f | 2260 | |
6efd877d KR |
2261 | demand_empty_rest_of_line (); |
2262 | } /* stringer() */ | |
fecd2382 | 2263 | \f |
6efd877d | 2264 | /* FIXME-SOMEDAY: I had trouble here on characters with the |
f8701a3f SC |
2265 | high bits set. We'll probably also have trouble with |
2266 | multibyte chars, wide chars, etc. Also be careful about | |
2267 | returning values bigger than 1 byte. xoxorich. */ | |
fecd2382 | 2268 | |
6efd877d KR |
2269 | unsigned int |
2270 | next_char_of_string () | |
2271 | { | |
2272 | register unsigned int c; | |
2273 | ||
2274 | c = *input_line_pointer++ & CHAR_MASK; | |
2275 | switch (c) | |
2276 | { | |
2277 | case '\"': | |
2278 | c = NOT_A_CHAR; | |
2279 | break; | |
2280 | ||
2281 | case '\\': | |
2282 | switch (c = *input_line_pointer++) | |
2283 | { | |
2284 | case 'b': | |
2285 | c = '\b'; | |
2286 | break; | |
2287 | ||
2288 | case 'f': | |
2289 | c = '\f'; | |
2290 | break; | |
2291 | ||
2292 | case 'n': | |
2293 | c = '\n'; | |
2294 | break; | |
2295 | ||
2296 | case 'r': | |
2297 | c = '\r'; | |
2298 | break; | |
2299 | ||
2300 | case 't': | |
2301 | c = '\t'; | |
2302 | break; | |
2303 | ||
fecd2382 | 2304 | #ifdef BACKSLASH_V |
6efd877d KR |
2305 | case 'v': |
2306 | c = '\013'; | |
2307 | break; | |
fecd2382 | 2308 | #endif |
6efd877d KR |
2309 | |
2310 | case '\\': | |
2311 | case '"': | |
2312 | break; /* As itself. */ | |
2313 | ||
2314 | case '0': | |
2315 | case '1': | |
2316 | case '2': | |
2317 | case '3': | |
2318 | case '4': | |
2319 | case '5': | |
2320 | case '6': | |
2321 | case '7': | |
2322 | case '8': | |
2323 | case '9': | |
2324 | { | |
2325 | long number; | |
2326 | ||
2327 | for (number = 0; isdigit (c); c = *input_line_pointer++) | |
2328 | { | |
2329 | number = number * 8 + c - '0'; | |
2330 | } | |
2331 | c = number & 0xff; | |
2332 | } | |
2333 | --input_line_pointer; | |
2334 | break; | |
2335 | ||
2336 | case '\n': | |
2337 | /* To be compatible with BSD 4.2 as: give the luser a linefeed!! */ | |
2338 | as_warn ("Unterminated string: Newline inserted."); | |
2339 | c = '\n'; | |
2340 | break; | |
2341 | ||
2342 | default: | |
2343 | ||
fecd2382 | 2344 | #ifdef ONLY_STANDARD_ESCAPES |
6efd877d KR |
2345 | as_bad ("Bad escaped character in string, '?' assumed"); |
2346 | c = '?'; | |
fecd2382 | 2347 | #endif /* ONLY_STANDARD_ESCAPES */ |
6efd877d KR |
2348 | |
2349 | break; | |
2350 | } /* switch on escaped char */ | |
2351 | break; | |
2352 | ||
2353 | default: | |
2354 | break; | |
2355 | } /* switch on char */ | |
2356 | return (c); | |
2357 | } /* next_char_of_string() */ | |
fecd2382 RP |
2358 | \f |
2359 | static segT | |
f8701a3f | 2360 | get_segmented_expression (expP) |
6efd877d | 2361 | register expressionS *expP; |
fecd2382 | 2362 | { |
6efd877d | 2363 | register segT retval; |
f8701a3f | 2364 | |
9471a360 | 2365 | retval = expression (expP); |
5ac34ac3 ILT |
2366 | if (expP->X_op == O_illegal |
2367 | || expP->X_op == O_absent | |
2368 | || expP->X_op == O_big) | |
f8701a3f | 2369 | { |
5ac34ac3 ILT |
2370 | as_bad ("expected address expression; zero assumed"); |
2371 | expP->X_op = O_constant; | |
6efd877d | 2372 | expP->X_add_number = 0; |
5ac34ac3 | 2373 | retval = absolute_section; |
f8701a3f | 2374 | } |
5ac34ac3 | 2375 | return retval; |
fecd2382 RP |
2376 | } |
2377 | ||
6efd877d KR |
2378 | static segT |
2379 | get_known_segmented_expression (expP) | |
2380 | register expressionS *expP; | |
fecd2382 | 2381 | { |
6efd877d | 2382 | register segT retval; |
f8701a3f | 2383 | |
9471a360 | 2384 | if ((retval = get_segmented_expression (expP)) == undefined_section) |
f8701a3f | 2385 | { |
5ac34ac3 ILT |
2386 | /* There is no easy way to extract the undefined symbol from the |
2387 | expression. */ | |
2388 | if (expP->X_add_symbol != NULL | |
2389 | && S_GET_SEGMENT (expP->X_add_symbol) != expr_section) | |
2390 | as_warn ("symbol \"%s\" undefined; zero assumed", | |
2391 | S_GET_NAME (expP->X_add_symbol)); | |
f8701a3f | 2392 | else |
5ac34ac3 ILT |
2393 | as_warn ("some symbol undefined; zero assumed"); |
2394 | retval = absolute_section; | |
2395 | expP->X_op = O_constant; | |
6efd877d | 2396 | expP->X_add_number = 0; |
f8701a3f | 2397 | } |
5ac34ac3 | 2398 | know (retval == absolute_section || SEG_NORMAL (retval)); |
f8701a3f | 2399 | return (retval); |
fecd2382 RP |
2400 | } /* get_known_segmented_expression() */ |
2401 | ||
6efd877d | 2402 | /* static */ long /* JF was static, but can't be if the MD pseudos are to use it */ |
f8701a3f | 2403 | get_absolute_expression () |
fecd2382 | 2404 | { |
6efd877d | 2405 | expressionS exp; |
f8701a3f | 2406 | |
5ac34ac3 ILT |
2407 | expression (&exp); |
2408 | if (exp.X_op != O_constant) | |
f8701a3f | 2409 | { |
5ac34ac3 ILT |
2410 | if (exp.X_op != O_absent) |
2411 | as_bad ("bad absolute expression; zero assumed"); | |
6efd877d | 2412 | exp.X_add_number = 0; |
f8701a3f | 2413 | } |
5ac34ac3 | 2414 | return exp.X_add_number; |
fecd2382 RP |
2415 | } |
2416 | ||
6efd877d KR |
2417 | char /* return terminator */ |
2418 | get_absolute_expression_and_terminator (val_pointer) | |
2419 | long *val_pointer; /* return value of expression */ | |
fecd2382 | 2420 | { |
6efd877d KR |
2421 | *val_pointer = get_absolute_expression (); |
2422 | return (*input_line_pointer++); | |
fecd2382 RP |
2423 | } |
2424 | \f | |
2425 | /* | |
2426 | * demand_copy_C_string() | |
2427 | * | |
2428 | * Like demand_copy_string, but return NULL if the string contains any '\0's. | |
2429 | * Give a warning if that happens. | |
2430 | */ | |
2431 | char * | |
f8701a3f | 2432 | demand_copy_C_string (len_pointer) |
6efd877d | 2433 | int *len_pointer; |
fecd2382 | 2434 | { |
6efd877d | 2435 | register char *s; |
f8701a3f | 2436 | |
6efd877d | 2437 | if ((s = demand_copy_string (len_pointer)) != 0) |
f8701a3f SC |
2438 | { |
2439 | register int len; | |
2440 | ||
6efd877d | 2441 | for (len = *len_pointer; |
f8701a3f SC |
2442 | len > 0; |
2443 | len--) | |
2444 | { | |
6efd877d | 2445 | if (*s == 0) |
fecd2382 | 2446 | { |
f8701a3f SC |
2447 | s = 0; |
2448 | len = 1; | |
6efd877d KR |
2449 | *len_pointer = 0; |
2450 | as_bad ("This string may not contain \'\\0\'"); | |
fecd2382 | 2451 | } |
f8701a3f SC |
2452 | } |
2453 | } | |
2454 | return (s); | |
fecd2382 RP |
2455 | } |
2456 | \f | |
2457 | /* | |
2458 | * demand_copy_string() | |
2459 | * | |
2460 | * Demand string, but return a safe (=private) copy of the string. | |
2461 | * Return NULL if we can't read a string here. | |
2462 | */ | |
6efd877d KR |
2463 | static char * |
2464 | demand_copy_string (lenP) | |
2465 | int *lenP; | |
fecd2382 | 2466 | { |
6efd877d KR |
2467 | register unsigned int c; |
2468 | register int len; | |
2469 | char *retval; | |
2470 | ||
2471 | len = 0; | |
2472 | SKIP_WHITESPACE (); | |
2473 | if (*input_line_pointer == '\"') | |
2474 | { | |
2475 | input_line_pointer++; /* Skip opening quote. */ | |
2476 | ||
2477 | while (is_a_char (c = next_char_of_string ())) | |
2478 | { | |
2479 | obstack_1grow (¬es, c); | |
2480 | len++; | |
fecd2382 | 2481 | } |
6efd877d KR |
2482 | /* JF this next line is so demand_copy_C_string will return a null |
2483 | termanated string. */ | |
2484 | obstack_1grow (¬es, '\0'); | |
2485 | retval = obstack_finish (¬es); | |
2486 | } | |
2487 | else | |
2488 | { | |
2489 | as_warn ("Missing string"); | |
2490 | retval = NULL; | |
2491 | ignore_rest_of_line (); | |
2492 | } | |
2493 | *lenP = len; | |
2494 | return (retval); | |
2495 | } /* demand_copy_string() */ | |
fecd2382 RP |
2496 | \f |
2497 | /* | |
2498 | * is_it_end_of_statement() | |
2499 | * | |
2500 | * In: Input_line_pointer->next character. | |
2501 | * | |
2502 | * Do: Skip input_line_pointer over all whitespace. | |
2503 | * | |
2504 | * Out: 1 if input_line_pointer->end-of-line. | |
f8701a3f | 2505 | */ |
6efd877d KR |
2506 | int |
2507 | is_it_end_of_statement () | |
2508 | { | |
2509 | SKIP_WHITESPACE (); | |
2510 | return (is_end_of_line[*input_line_pointer]); | |
2511 | } /* is_it_end_of_statement() */ | |
fecd2382 | 2512 | |
6efd877d KR |
2513 | void |
2514 | equals (sym_name) | |
2515 | char *sym_name; | |
fecd2382 | 2516 | { |
6efd877d | 2517 | register symbolS *symbolP; /* symbol we are working with */ |
f8701a3f SC |
2518 | |
2519 | input_line_pointer++; | |
6efd877d | 2520 | if (*input_line_pointer == '=') |
f8701a3f SC |
2521 | input_line_pointer++; |
2522 | ||
6efd877d | 2523 | while (*input_line_pointer == ' ' || *input_line_pointer == '\t') |
f8701a3f SC |
2524 | input_line_pointer++; |
2525 | ||
6efd877d KR |
2526 | if (sym_name[0] == '.' && sym_name[1] == '\0') |
2527 | { | |
2528 | /* Turn '. = mumble' into a .org mumble */ | |
2529 | register segT segment; | |
2530 | expressionS exp; | |
2531 | register char *p; | |
f8701a3f | 2532 | |
6efd877d KR |
2533 | segment = get_known_segmented_expression (&exp); |
2534 | if (!need_pass_2) | |
2535 | { | |
9471a360 | 2536 | if (segment != now_seg && segment != absolute_section) |
6efd877d KR |
2537 | as_warn ("Illegal segment \"%s\". Segment \"%s\" assumed.", |
2538 | segment_name (segment), | |
2539 | segment_name (now_seg)); | |
2540 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp.X_add_symbol, | |
2541 | exp.X_add_number, (char *) 0); | |
2542 | *p = 0; | |
2543 | } /* if (ok to make frag) */ | |
2544 | } | |
2545 | else | |
2546 | { | |
2547 | symbolP = symbol_find_or_make (sym_name); | |
2548 | pseudo_set (symbolP); | |
2549 | } | |
2550 | } /* equals() */ | |
fecd2382 RP |
2551 | |
2552 | /* .include -- include a file at this point. */ | |
2553 | ||
2554 | /* ARGSUSED */ | |
6efd877d KR |
2555 | void |
2556 | s_include (arg) | |
2557 | int arg; | |
fecd2382 | 2558 | { |
f8701a3f SC |
2559 | char *newbuf; |
2560 | char *filename; | |
2561 | int i; | |
2562 | FILE *try; | |
2563 | char *path; | |
2564 | ||
6efd877d KR |
2565 | filename = demand_copy_string (&i); |
2566 | demand_empty_rest_of_line (); | |
2567 | path = xmalloc (i + include_dir_maxlen + 5 /* slop */ ); | |
2568 | for (i = 0; i < include_dir_count; i++) | |
2569 | { | |
2570 | strcpy (path, include_dirs[i]); | |
2571 | strcat (path, "/"); | |
2572 | strcat (path, filename); | |
2573 | if (0 != (try = fopen (path, "r"))) | |
2574 | { | |
2575 | fclose (try); | |
2576 | goto gotit; | |
2577 | } | |
2578 | } | |
2579 | free (path); | |
f8701a3f SC |
2580 | path = filename; |
2581 | gotit: | |
2582 | /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */ | |
2583 | newbuf = input_scrub_include_file (path, input_line_pointer); | |
2584 | buffer_limit = input_scrub_next_buffer (&input_line_pointer); | |
6efd877d | 2585 | } /* s_include() */ |
fecd2382 | 2586 | |
6efd877d KR |
2587 | void |
2588 | add_include_dir (path) | |
2589 | char *path; | |
fecd2382 | 2590 | { |
f8701a3f SC |
2591 | int i; |
2592 | ||
2593 | if (include_dir_count == 0) | |
2594 | { | |
6efd877d | 2595 | include_dirs = (char **) xmalloc (2 * sizeof (*include_dirs)); |
f8701a3f SC |
2596 | include_dirs[0] = "."; /* Current dir */ |
2597 | include_dir_count = 2; | |
2598 | } | |
2599 | else | |
2600 | { | |
2601 | include_dir_count++; | |
6efd877d KR |
2602 | include_dirs = (char **) realloc (include_dirs, |
2603 | include_dir_count * sizeof (*include_dirs)); | |
f8701a3f SC |
2604 | } |
2605 | ||
6efd877d | 2606 | include_dirs[include_dir_count - 1] = path; /* New one */ |
f8701a3f | 2607 | |
6efd877d KR |
2608 | i = strlen (path); |
2609 | if (i > include_dir_maxlen) | |
2610 | include_dir_maxlen = i; | |
2611 | } /* add_include_dir() */ | |
fecd2382 | 2612 | |
6efd877d KR |
2613 | void |
2614 | s_ignore (arg) | |
2615 | int arg; | |
fecd2382 | 2616 | { |
6efd877d KR |
2617 | while (!is_end_of_line[*input_line_pointer]) |
2618 | { | |
2619 | ++input_line_pointer; | |
2620 | } | |
2621 | ++input_line_pointer; | |
fecd2382 | 2622 | |
6efd877d KR |
2623 | return; |
2624 | } /* s_ignore() */ | |
fecd2382 RP |
2625 | |
2626 | /* end of read.c */ |