Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-mn10300.c -- Assembler code for the Matsushita 10300 |
f7e42eb4 NC |
2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include <stdio.h> | |
252b5132 | 23 | #include "as.h" |
3882b010 | 24 | #include "safe-ctype.h" |
87271fa6 | 25 | #include "subsegs.h" |
252b5132 | 26 | #include "opcode/mn10300.h" |
e8b1cae5 | 27 | #include "dwarf2dbg.h" |
252b5132 RH |
28 | \f |
29 | /* Structure to hold information about predefined registers. */ | |
30 | struct reg_name | |
31 | { | |
32 | const char *name; | |
33 | int value; | |
34 | }; | |
35 | ||
87271fa6 NC |
36 | /* Generic assembler global variables which must be defined by all |
37 | targets. */ | |
252b5132 | 38 | |
87271fa6 | 39 | /* Characters which always start a comment. */ |
252b5132 RH |
40 | const char comment_chars[] = "#"; |
41 | ||
42 | /* Characters which start a comment at the beginning of a line. */ | |
43 | const char line_comment_chars[] = ";#"; | |
44 | ||
87271fa6 | 45 | /* Characters which may be used to separate multiple commands on a |
252b5132 RH |
46 | single line. */ |
47 | const char line_separator_chars[] = ";"; | |
48 | ||
87271fa6 | 49 | /* Characters which are used to indicate an exponent in a floating |
252b5132 RH |
50 | point number. */ |
51 | const char EXP_CHARS[] = "eE"; | |
52 | ||
87271fa6 | 53 | /* Characters which mean that a number is a floating point constant, |
252b5132 RH |
54 | as in 0d1.0. */ |
55 | const char FLT_CHARS[] = "dD"; | |
56 | \f | |
252b5132 | 57 | const relax_typeS md_relax_table[] = { |
87271fa6 | 58 | /* bCC relaxing */ |
252b5132 RH |
59 | {0x7f, -0x80, 2, 1}, |
60 | {0x7fff, -0x8000, 5, 2}, | |
61 | {0x7fffffff, -0x80000000, 7, 0}, | |
62 | ||
87271fa6 | 63 | /* bCC relaxing (uncommon cases) */ |
252b5132 RH |
64 | {0x7f, -0x80, 3, 4}, |
65 | {0x7fff, -0x8000, 6, 5}, | |
66 | {0x7fffffff, -0x80000000, 8, 0}, | |
67 | ||
87271fa6 | 68 | /* call relaxing */ |
252b5132 RH |
69 | {0x7fff, -0x8000, 5, 7}, |
70 | {0x7fffffff, -0x80000000, 7, 0}, | |
71 | ||
87271fa6 | 72 | /* calls relaxing */ |
252b5132 RH |
73 | {0x7fff, -0x8000, 4, 9}, |
74 | {0x7fffffff, -0x80000000, 6, 0}, | |
75 | ||
87271fa6 | 76 | /* jmp relaxing */ |
252b5132 RH |
77 | {0x7f, -0x80, 2, 11}, |
78 | {0x7fff, -0x8000, 3, 12}, | |
79 | {0x7fffffff, -0x80000000, 5, 0}, | |
80 | ||
81 | }; | |
82 | ||
87271fa6 | 83 | /* Local functions. */ |
252b5132 RH |
84 | static void mn10300_insert_operand PARAMS ((unsigned long *, unsigned long *, |
85 | const struct mn10300_operand *, | |
86 | offsetT, char *, unsigned, | |
87 | unsigned)); | |
88 | static unsigned long check_operand PARAMS ((unsigned long, | |
89 | const struct mn10300_operand *, | |
90 | offsetT)); | |
91 | static int reg_name_search PARAMS ((const struct reg_name *, int, const char *)); | |
92 | static boolean data_register_name PARAMS ((expressionS *expressionP)); | |
93 | static boolean address_register_name PARAMS ((expressionS *expressionP)); | |
94 | static boolean other_register_name PARAMS ((expressionS *expressionP)); | |
0e1a166b | 95 | static void set_arch_mach PARAMS ((unsigned int)); |
252b5132 | 96 | |
1485d400 EC |
97 | /* Set linkrelax here to avoid fixups in most sections. */ |
98 | int linkrelax = 1; | |
99 | ||
252b5132 RH |
100 | static int current_machine; |
101 | ||
87271fa6 | 102 | /* Fixups. */ |
252b5132 RH |
103 | #define MAX_INSN_FIXUPS (5) |
104 | struct mn10300_fixup | |
105 | { | |
106 | expressionS exp; | |
107 | int opindex; | |
108 | bfd_reloc_code_real_type reloc; | |
109 | }; | |
110 | struct mn10300_fixup fixups[MAX_INSN_FIXUPS]; | |
111 | static int fc; | |
112 | ||
113 | /* We must store the value of each register operand so that we can | |
114 | verify that certain registers do not match. */ | |
115 | int mn10300_reg_operands[MN10300_MAX_OPERANDS]; | |
116 | \f | |
117 | const char *md_shortopts = ""; | |
118 | struct option md_longopts[] = { | |
119 | {NULL, no_argument, NULL, 0} | |
120 | }; | |
87271fa6 | 121 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
122 | |
123 | /* The target specific pseudo-ops which we support. */ | |
124 | const pseudo_typeS md_pseudo_table[] = | |
125 | { | |
b4c1ea07 EC |
126 | { "file", dwarf2_directive_file, 0 }, |
127 | { "loc", dwarf2_directive_loc, 0 }, | |
0a727238 AO |
128 | { "am30", set_arch_mach, AM30 }, |
129 | { "am33", set_arch_mach, AM33 }, | |
130 | { "mn10300", set_arch_mach, MN103 }, | |
252b5132 RH |
131 | {NULL, 0, 0} |
132 | }; | |
133 | ||
0a727238 | 134 | #define HAVE_AM33 (current_machine == AM33) |
aa15f6f7 | 135 | #define HAVE_AM30 (current_machine == AM30) |
0a727238 | 136 | |
252b5132 RH |
137 | /* Opcode hash table. */ |
138 | static struct hash_control *mn10300_hash; | |
139 | ||
87271fa6 | 140 | /* This table is sorted. Suitable for searching by a binary search. */ |
252b5132 RH |
141 | static const struct reg_name data_registers[] = |
142 | { | |
143 | { "d0", 0 }, | |
144 | { "d1", 1 }, | |
145 | { "d2", 2 }, | |
146 | { "d3", 3 }, | |
147 | }; | |
87271fa6 NC |
148 | #define DATA_REG_NAME_CNT \ |
149 | (sizeof (data_registers) / sizeof (struct reg_name)) | |
252b5132 RH |
150 | |
151 | static const struct reg_name address_registers[] = | |
152 | { | |
153 | { "a0", 0 }, | |
154 | { "a1", 1 }, | |
155 | { "a2", 2 }, | |
156 | { "a3", 3 }, | |
157 | }; | |
87271fa6 NC |
158 | |
159 | #define ADDRESS_REG_NAME_CNT \ | |
160 | (sizeof (address_registers) / sizeof (struct reg_name)) | |
252b5132 | 161 | |
85cb2cf9 JL |
162 | static const struct reg_name r_registers[] = |
163 | { | |
164 | { "a0", 8 }, | |
165 | { "a1", 9 }, | |
166 | { "a2", 10 }, | |
167 | { "a3", 11 }, | |
168 | { "d0", 12 }, | |
169 | { "d1", 13 }, | |
170 | { "d2", 14 }, | |
171 | { "d3", 15 }, | |
172 | { "e0", 0 }, | |
173 | { "e1", 1 }, | |
174 | { "e10", 10 }, | |
175 | { "e11", 11 }, | |
176 | { "e12", 12 }, | |
177 | { "e13", 13 }, | |
178 | { "e14", 14 }, | |
179 | { "e15", 15 }, | |
180 | { "e2", 2 }, | |
181 | { "e3", 3 }, | |
182 | { "e4", 4 }, | |
183 | { "e5", 5 }, | |
184 | { "e6", 6 }, | |
185 | { "e7", 7 }, | |
186 | { "e8", 8 }, | |
187 | { "e9", 9 }, | |
188 | { "r0", 0 }, | |
189 | { "r1", 1 }, | |
190 | { "r10", 10 }, | |
191 | { "r11", 11 }, | |
192 | { "r12", 12 }, | |
193 | { "r13", 13 }, | |
194 | { "r14", 14 }, | |
195 | { "r15", 15 }, | |
196 | { "r2", 2 }, | |
197 | { "r3", 3 }, | |
198 | { "r4", 4 }, | |
199 | { "r5", 5 }, | |
200 | { "r6", 6 }, | |
201 | { "r7", 7 }, | |
202 | { "r8", 8 }, | |
203 | { "r9", 9 }, | |
204 | }; | |
87271fa6 NC |
205 | |
206 | #define R_REG_NAME_CNT \ | |
207 | (sizeof (r_registers) / sizeof (struct reg_name)) | |
85cb2cf9 JL |
208 | |
209 | static const struct reg_name xr_registers[] = | |
210 | { | |
211 | { "mcrh", 2 }, | |
212 | { "mcrl", 3 }, | |
213 | { "mcvf", 4 }, | |
214 | { "mdrq", 1 }, | |
4dfea105 | 215 | { "pc", 0 }, |
85cb2cf9 JL |
216 | { "sp", 0 }, |
217 | { "xr0", 0 }, | |
218 | { "xr1", 1 }, | |
219 | { "xr10", 10 }, | |
220 | { "xr11", 11 }, | |
221 | { "xr12", 12 }, | |
222 | { "xr13", 13 }, | |
223 | { "xr14", 14 }, | |
224 | { "xr15", 15 }, | |
225 | { "xr2", 2 }, | |
226 | { "xr3", 3 }, | |
227 | { "xr4", 4 }, | |
228 | { "xr5", 5 }, | |
229 | { "xr6", 6 }, | |
230 | { "xr7", 7 }, | |
231 | { "xr8", 8 }, | |
232 | { "xr9", 9 }, | |
233 | }; | |
85cb2cf9 | 234 | |
87271fa6 NC |
235 | #define XR_REG_NAME_CNT \ |
236 | (sizeof (xr_registers) / sizeof (struct reg_name)) | |
252b5132 RH |
237 | |
238 | static const struct reg_name other_registers[] = | |
239 | { | |
240 | { "mdr", 0 }, | |
241 | { "psw", 0 }, | |
242 | { "sp", 0 }, | |
243 | }; | |
87271fa6 NC |
244 | |
245 | #define OTHER_REG_NAME_CNT \ | |
246 | (sizeof (other_registers) / sizeof (struct reg_name)) | |
252b5132 RH |
247 | |
248 | /* reg_name_search does a binary search of the given register table | |
249 | to see if "name" is a valid regiter name. Returns the register | |
87271fa6 | 250 | number from the array on success, or -1 on failure. */ |
252b5132 RH |
251 | |
252 | static int | |
253 | reg_name_search (regs, regcount, name) | |
254 | const struct reg_name *regs; | |
255 | int regcount; | |
256 | const char *name; | |
257 | { | |
258 | int middle, low, high; | |
259 | int cmp; | |
260 | ||
261 | low = 0; | |
262 | high = regcount - 1; | |
263 | ||
264 | do | |
265 | { | |
266 | middle = (low + high) / 2; | |
267 | cmp = strcasecmp (name, regs[middle].name); | |
268 | if (cmp < 0) | |
269 | high = middle - 1; | |
270 | else if (cmp > 0) | |
271 | low = middle + 1; | |
87271fa6 NC |
272 | else |
273 | return regs[middle].value; | |
252b5132 RH |
274 | } |
275 | while (low <= high); | |
276 | return -1; | |
277 | } | |
278 | ||
85cb2cf9 JL |
279 | /* Summary of register_name(). |
280 | * | |
281 | * in: Input_line_pointer points to 1st char of operand. | |
282 | * | |
b6ff326e | 283 | * out: An expressionS. |
85cb2cf9 JL |
284 | * The operand may have been a register: in this case, X_op == O_register, |
285 | * X_add_number is set to the register number, and truth is returned. | |
286 | * Input_line_pointer->(next non-blank) char after operand, or is in | |
287 | * its original state. | |
288 | */ | |
87271fa6 | 289 | |
85cb2cf9 JL |
290 | static boolean |
291 | r_register_name (expressionP) | |
292 | expressionS *expressionP; | |
293 | { | |
294 | int reg_number; | |
295 | char *name; | |
296 | char *start; | |
297 | char c; | |
298 | ||
87271fa6 | 299 | /* Find the spelling of the operand. */ |
85cb2cf9 JL |
300 | start = name = input_line_pointer; |
301 | ||
302 | c = get_symbol_end (); | |
303 | reg_number = reg_name_search (r_registers, R_REG_NAME_CNT, name); | |
304 | ||
468cced8 AM |
305 | /* Put back the delimiting char. */ |
306 | *input_line_pointer = c; | |
307 | ||
87271fa6 NC |
308 | /* Look to see if it's in the register table. */ |
309 | if (reg_number >= 0) | |
85cb2cf9 JL |
310 | { |
311 | expressionP->X_op = O_register; | |
312 | expressionP->X_add_number = reg_number; | |
313 | ||
87271fa6 | 314 | /* Make the rest nice. */ |
85cb2cf9 JL |
315 | expressionP->X_add_symbol = NULL; |
316 | expressionP->X_op_symbol = NULL; | |
87271fa6 | 317 | |
85cb2cf9 JL |
318 | return true; |
319 | } | |
87271fa6 | 320 | |
468cced8 AM |
321 | /* Reset the line as if we had not done anything. */ |
322 | input_line_pointer = start; | |
323 | return false; | |
85cb2cf9 JL |
324 | } |
325 | ||
326 | /* Summary of register_name(). | |
327 | * | |
328 | * in: Input_line_pointer points to 1st char of operand. | |
329 | * | |
b6ff326e | 330 | * out: An expressionS. |
85cb2cf9 JL |
331 | * The operand may have been a register: in this case, X_op == O_register, |
332 | * X_add_number is set to the register number, and truth is returned. | |
333 | * Input_line_pointer->(next non-blank) char after operand, or is in | |
334 | * its original state. | |
335 | */ | |
87271fa6 | 336 | |
85cb2cf9 JL |
337 | static boolean |
338 | xr_register_name (expressionP) | |
339 | expressionS *expressionP; | |
340 | { | |
341 | int reg_number; | |
342 | char *name; | |
343 | char *start; | |
344 | char c; | |
345 | ||
87271fa6 | 346 | /* Find the spelling of the operand. */ |
85cb2cf9 JL |
347 | start = name = input_line_pointer; |
348 | ||
349 | c = get_symbol_end (); | |
350 | reg_number = reg_name_search (xr_registers, XR_REG_NAME_CNT, name); | |
351 | ||
468cced8 AM |
352 | /* Put back the delimiting char. */ |
353 | *input_line_pointer = c; | |
354 | ||
87271fa6 NC |
355 | /* Look to see if it's in the register table. */ |
356 | if (reg_number >= 0) | |
85cb2cf9 JL |
357 | { |
358 | expressionP->X_op = O_register; | |
359 | expressionP->X_add_number = reg_number; | |
360 | ||
87271fa6 | 361 | /* Make the rest nice. */ |
85cb2cf9 JL |
362 | expressionP->X_add_symbol = NULL; |
363 | expressionP->X_op_symbol = NULL; | |
87271fa6 | 364 | |
85cb2cf9 JL |
365 | return true; |
366 | } | |
87271fa6 | 367 | |
468cced8 AM |
368 | /* Reset the line as if we had not done anything. */ |
369 | input_line_pointer = start; | |
370 | return false; | |
85cb2cf9 | 371 | } |
252b5132 RH |
372 | |
373 | /* Summary of register_name(). | |
374 | * | |
375 | * in: Input_line_pointer points to 1st char of operand. | |
376 | * | |
b6ff326e | 377 | * out: An expressionS. |
252b5132 RH |
378 | * The operand may have been a register: in this case, X_op == O_register, |
379 | * X_add_number is set to the register number, and truth is returned. | |
380 | * Input_line_pointer->(next non-blank) char after operand, or is in | |
381 | * its original state. | |
382 | */ | |
87271fa6 | 383 | |
252b5132 RH |
384 | static boolean |
385 | data_register_name (expressionP) | |
386 | expressionS *expressionP; | |
387 | { | |
388 | int reg_number; | |
389 | char *name; | |
390 | char *start; | |
391 | char c; | |
392 | ||
87271fa6 | 393 | /* Find the spelling of the operand. */ |
252b5132 RH |
394 | start = name = input_line_pointer; |
395 | ||
396 | c = get_symbol_end (); | |
397 | reg_number = reg_name_search (data_registers, DATA_REG_NAME_CNT, name); | |
398 | ||
468cced8 AM |
399 | /* Put back the delimiting char. */ |
400 | *input_line_pointer = c; | |
401 | ||
87271fa6 NC |
402 | /* Look to see if it's in the register table. */ |
403 | if (reg_number >= 0) | |
252b5132 RH |
404 | { |
405 | expressionP->X_op = O_register; | |
406 | expressionP->X_add_number = reg_number; | |
407 | ||
87271fa6 | 408 | /* Make the rest nice. */ |
252b5132 RH |
409 | expressionP->X_add_symbol = NULL; |
410 | expressionP->X_op_symbol = NULL; | |
87271fa6 | 411 | |
252b5132 RH |
412 | return true; |
413 | } | |
87271fa6 | 414 | |
468cced8 AM |
415 | /* Reset the line as if we had not done anything. */ |
416 | input_line_pointer = start; | |
417 | return false; | |
252b5132 RH |
418 | } |
419 | ||
420 | /* Summary of register_name(). | |
421 | * | |
422 | * in: Input_line_pointer points to 1st char of operand. | |
423 | * | |
b6ff326e | 424 | * out: An expressionS. |
252b5132 RH |
425 | * The operand may have been a register: in this case, X_op == O_register, |
426 | * X_add_number is set to the register number, and truth is returned. | |
427 | * Input_line_pointer->(next non-blank) char after operand, or is in | |
428 | * its original state. | |
429 | */ | |
87271fa6 | 430 | |
252b5132 RH |
431 | static boolean |
432 | address_register_name (expressionP) | |
433 | expressionS *expressionP; | |
434 | { | |
435 | int reg_number; | |
436 | char *name; | |
437 | char *start; | |
438 | char c; | |
439 | ||
87271fa6 | 440 | /* Find the spelling of the operand. */ |
252b5132 RH |
441 | start = name = input_line_pointer; |
442 | ||
443 | c = get_symbol_end (); | |
444 | reg_number = reg_name_search (address_registers, ADDRESS_REG_NAME_CNT, name); | |
445 | ||
468cced8 AM |
446 | /* Put back the delimiting char. */ |
447 | *input_line_pointer = c; | |
448 | ||
87271fa6 NC |
449 | /* Look to see if it's in the register table. */ |
450 | if (reg_number >= 0) | |
252b5132 RH |
451 | { |
452 | expressionP->X_op = O_register; | |
453 | expressionP->X_add_number = reg_number; | |
454 | ||
87271fa6 | 455 | /* Make the rest nice. */ |
252b5132 RH |
456 | expressionP->X_add_symbol = NULL; |
457 | expressionP->X_op_symbol = NULL; | |
87271fa6 | 458 | |
252b5132 RH |
459 | return true; |
460 | } | |
87271fa6 | 461 | |
468cced8 AM |
462 | /* Reset the line as if we had not done anything. */ |
463 | input_line_pointer = start; | |
464 | return false; | |
252b5132 RH |
465 | } |
466 | ||
467 | /* Summary of register_name(). | |
468 | * | |
469 | * in: Input_line_pointer points to 1st char of operand. | |
470 | * | |
b6ff326e | 471 | * out: An expressionS. |
252b5132 RH |
472 | * The operand may have been a register: in this case, X_op == O_register, |
473 | * X_add_number is set to the register number, and truth is returned. | |
474 | * Input_line_pointer->(next non-blank) char after operand, or is in | |
475 | * its original state. | |
476 | */ | |
87271fa6 | 477 | |
252b5132 RH |
478 | static boolean |
479 | other_register_name (expressionP) | |
480 | expressionS *expressionP; | |
481 | { | |
482 | int reg_number; | |
483 | char *name; | |
484 | char *start; | |
485 | char c; | |
486 | ||
87271fa6 | 487 | /* Find the spelling of the operand. */ |
252b5132 RH |
488 | start = name = input_line_pointer; |
489 | ||
490 | c = get_symbol_end (); | |
491 | reg_number = reg_name_search (other_registers, OTHER_REG_NAME_CNT, name); | |
492 | ||
468cced8 AM |
493 | /* Put back the delimiting char. */ |
494 | *input_line_pointer = c; | |
495 | ||
87271fa6 NC |
496 | /* Look to see if it's in the register table. */ |
497 | if (reg_number >= 0) | |
252b5132 RH |
498 | { |
499 | expressionP->X_op = O_register; | |
500 | expressionP->X_add_number = reg_number; | |
501 | ||
87271fa6 | 502 | /* Make the rest nice. */ |
252b5132 RH |
503 | expressionP->X_add_symbol = NULL; |
504 | expressionP->X_op_symbol = NULL; | |
87271fa6 | 505 | |
252b5132 RH |
506 | return true; |
507 | } | |
87271fa6 | 508 | |
468cced8 AM |
509 | /* Reset the line as if we had not done anything. */ |
510 | input_line_pointer = start; | |
511 | return false; | |
252b5132 RH |
512 | } |
513 | ||
514 | void | |
515 | md_show_usage (stream) | |
87271fa6 | 516 | FILE *stream; |
252b5132 | 517 | { |
87271fa6 | 518 | fprintf (stream, _("MN10300 options:\n\ |
252b5132 | 519 | none yet\n")); |
87271fa6 | 520 | } |
252b5132 RH |
521 | |
522 | int | |
523 | md_parse_option (c, arg) | |
b4c1ea07 EC |
524 | int c ATTRIBUTE_UNUSED; |
525 | char *arg ATTRIBUTE_UNUSED; | |
252b5132 RH |
526 | { |
527 | return 0; | |
528 | } | |
529 | ||
530 | symbolS * | |
531 | md_undefined_symbol (name) | |
b4c1ea07 | 532 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
533 | { |
534 | return 0; | |
535 | } | |
536 | ||
537 | char * | |
538 | md_atof (type, litp, sizep) | |
87271fa6 NC |
539 | int type; |
540 | char *litp; | |
541 | int *sizep; | |
252b5132 RH |
542 | { |
543 | int prec; | |
544 | LITTLENUM_TYPE words[4]; | |
545 | char *t; | |
546 | int i; | |
547 | ||
548 | switch (type) | |
549 | { | |
550 | case 'f': | |
551 | prec = 2; | |
552 | break; | |
553 | ||
554 | case 'd': | |
555 | prec = 4; | |
556 | break; | |
557 | ||
558 | default: | |
559 | *sizep = 0; | |
560 | return "bad call to md_atof"; | |
561 | } | |
87271fa6 | 562 | |
252b5132 RH |
563 | t = atof_ieee (input_line_pointer, type, words); |
564 | if (t) | |
565 | input_line_pointer = t; | |
566 | ||
567 | *sizep = prec * 2; | |
568 | ||
569 | for (i = prec - 1; i >= 0; i--) | |
570 | { | |
571 | md_number_to_chars (litp, (valueT) words[i], 2); | |
572 | litp += 2; | |
573 | } | |
574 | ||
575 | return NULL; | |
576 | } | |
577 | ||
252b5132 RH |
578 | void |
579 | md_convert_frag (abfd, sec, fragP) | |
b4c1ea07 | 580 | bfd *abfd ATTRIBUTE_UNUSED; |
87271fa6 NC |
581 | asection *sec; |
582 | fragS *fragP; | |
252b5132 RH |
583 | { |
584 | static unsigned long label_count = 0; | |
585 | char buf[40]; | |
586 | ||
587 | subseg_change (sec, 0); | |
588 | if (fragP->fr_subtype == 0) | |
589 | { | |
590 | fix_new (fragP, fragP->fr_fix + 1, 1, fragP->fr_symbol, | |
591 | fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL); | |
592 | fragP->fr_var = 0; | |
593 | fragP->fr_fix += 2; | |
594 | } | |
595 | else if (fragP->fr_subtype == 1) | |
596 | { | |
597 | /* Reverse the condition of the first branch. */ | |
598 | int offset = fragP->fr_fix; | |
599 | int opcode = fragP->fr_literal[offset] & 0xff; | |
600 | ||
601 | switch (opcode) | |
602 | { | |
603 | case 0xc8: | |
604 | opcode = 0xc9; | |
605 | break; | |
606 | case 0xc9: | |
607 | opcode = 0xc8; | |
608 | break; | |
609 | case 0xc0: | |
610 | opcode = 0xc2; | |
611 | break; | |
612 | case 0xc2: | |
613 | opcode = 0xc0; | |
614 | break; | |
615 | case 0xc3: | |
616 | opcode = 0xc1; | |
617 | break; | |
618 | case 0xc1: | |
619 | opcode = 0xc3; | |
620 | break; | |
621 | case 0xc4: | |
622 | opcode = 0xc6; | |
623 | break; | |
624 | case 0xc6: | |
625 | opcode = 0xc4; | |
626 | break; | |
627 | case 0xc7: | |
628 | opcode = 0xc5; | |
629 | break; | |
630 | case 0xc5: | |
631 | opcode = 0xc7; | |
632 | break; | |
633 | default: | |
634 | abort (); | |
635 | } | |
636 | fragP->fr_literal[offset] = opcode; | |
637 | ||
638 | /* Create a fixup for the reversed conditional branch. */ | |
0aa529cb | 639 | sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++); |
252b5132 RH |
640 | fix_new (fragP, fragP->fr_fix + 1, 1, |
641 | symbol_new (buf, sec, 0, fragP->fr_next), | |
642 | fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL); | |
643 | ||
644 | /* Now create the unconditional branch + fixup to the | |
645 | final target. */ | |
646 | fragP->fr_literal[offset + 2] = 0xcc; | |
647 | fix_new (fragP, fragP->fr_fix + 3, 2, fragP->fr_symbol, | |
648 | fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL); | |
649 | fragP->fr_var = 0; | |
650 | fragP->fr_fix += 5; | |
651 | } | |
652 | else if (fragP->fr_subtype == 2) | |
653 | { | |
654 | /* Reverse the condition of the first branch. */ | |
655 | int offset = fragP->fr_fix; | |
656 | int opcode = fragP->fr_literal[offset] & 0xff; | |
657 | ||
658 | switch (opcode) | |
659 | { | |
660 | case 0xc8: | |
661 | opcode = 0xc9; | |
662 | break; | |
663 | case 0xc9: | |
664 | opcode = 0xc8; | |
665 | break; | |
666 | case 0xc0: | |
667 | opcode = 0xc2; | |
668 | break; | |
669 | case 0xc2: | |
670 | opcode = 0xc0; | |
671 | break; | |
672 | case 0xc3: | |
673 | opcode = 0xc1; | |
674 | break; | |
675 | case 0xc1: | |
676 | opcode = 0xc3; | |
677 | break; | |
678 | case 0xc4: | |
679 | opcode = 0xc6; | |
680 | break; | |
681 | case 0xc6: | |
682 | opcode = 0xc4; | |
683 | break; | |
684 | case 0xc7: | |
685 | opcode = 0xc5; | |
686 | break; | |
687 | case 0xc5: | |
688 | opcode = 0xc7; | |
689 | break; | |
690 | default: | |
691 | abort (); | |
692 | } | |
693 | fragP->fr_literal[offset] = opcode; | |
694 | ||
695 | /* Create a fixup for the reversed conditional branch. */ | |
0aa529cb | 696 | sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++); |
252b5132 RH |
697 | fix_new (fragP, fragP->fr_fix + 1, 1, |
698 | symbol_new (buf, sec, 0, fragP->fr_next), | |
699 | fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL); | |
700 | ||
701 | /* Now create the unconditional branch + fixup to the | |
702 | final target. */ | |
703 | fragP->fr_literal[offset + 2] = 0xdc; | |
704 | fix_new (fragP, fragP->fr_fix + 3, 4, fragP->fr_symbol, | |
705 | fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL); | |
706 | fragP->fr_var = 0; | |
707 | fragP->fr_fix += 7; | |
708 | } | |
709 | else if (fragP->fr_subtype == 3) | |
710 | { | |
711 | fix_new (fragP, fragP->fr_fix + 2, 1, fragP->fr_symbol, | |
712 | fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL); | |
713 | fragP->fr_var = 0; | |
714 | fragP->fr_fix += 3; | |
715 | } | |
716 | else if (fragP->fr_subtype == 4) | |
717 | { | |
718 | /* Reverse the condition of the first branch. */ | |
719 | int offset = fragP->fr_fix; | |
720 | int opcode = fragP->fr_literal[offset + 1] & 0xff; | |
721 | ||
722 | switch (opcode) | |
723 | { | |
724 | case 0xe8: | |
725 | opcode = 0xe9; | |
726 | break; | |
727 | case 0xe9: | |
728 | opcode = 0xe8; | |
729 | break; | |
730 | case 0xea: | |
731 | opcode = 0xeb; | |
732 | break; | |
733 | case 0xeb: | |
734 | opcode = 0xea; | |
735 | break; | |
736 | default: | |
737 | abort (); | |
738 | } | |
739 | fragP->fr_literal[offset + 1] = opcode; | |
740 | ||
741 | /* Create a fixup for the reversed conditional branch. */ | |
0aa529cb | 742 | sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++); |
252b5132 RH |
743 | fix_new (fragP, fragP->fr_fix + 2, 1, |
744 | symbol_new (buf, sec, 0, fragP->fr_next), | |
745 | fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL); | |
746 | ||
747 | /* Now create the unconditional branch + fixup to the | |
748 | final target. */ | |
749 | fragP->fr_literal[offset + 3] = 0xcc; | |
750 | fix_new (fragP, fragP->fr_fix + 4, 2, fragP->fr_symbol, | |
751 | fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL); | |
752 | fragP->fr_var = 0; | |
753 | fragP->fr_fix += 6; | |
754 | } | |
755 | else if (fragP->fr_subtype == 5) | |
756 | { | |
757 | /* Reverse the condition of the first branch. */ | |
758 | int offset = fragP->fr_fix; | |
759 | int opcode = fragP->fr_literal[offset + 1] & 0xff; | |
760 | ||
761 | switch (opcode) | |
762 | { | |
763 | case 0xe8: | |
764 | opcode = 0xe9; | |
765 | break; | |
766 | case 0xea: | |
767 | opcode = 0xeb; | |
768 | break; | |
769 | case 0xeb: | |
770 | opcode = 0xea; | |
771 | break; | |
772 | default: | |
773 | abort (); | |
774 | } | |
775 | fragP->fr_literal[offset + 1] = opcode; | |
776 | ||
777 | /* Create a fixup for the reversed conditional branch. */ | |
0aa529cb | 778 | sprintf (buf, ".%s_%ld", FAKE_LABEL_NAME, label_count++); |
252b5132 RH |
779 | fix_new (fragP, fragP->fr_fix + 2, 1, |
780 | symbol_new (buf, sec, 0, fragP->fr_next), | |
781 | fragP->fr_offset + 2, 1, BFD_RELOC_8_PCREL); | |
782 | ||
783 | /* Now create the unconditional branch + fixup to the | |
784 | final target. */ | |
785 | fragP->fr_literal[offset + 3] = 0xdc; | |
786 | fix_new (fragP, fragP->fr_fix + 4, 4, fragP->fr_symbol, | |
787 | fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL); | |
788 | fragP->fr_var = 0; | |
789 | fragP->fr_fix += 8; | |
790 | } | |
791 | else if (fragP->fr_subtype == 6) | |
792 | { | |
793 | int offset = fragP->fr_fix; | |
794 | fragP->fr_literal[offset] = 0xcd; | |
795 | fix_new (fragP, fragP->fr_fix + 1, 2, fragP->fr_symbol, | |
796 | fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL); | |
797 | fragP->fr_var = 0; | |
798 | fragP->fr_fix += 5; | |
799 | } | |
800 | else if (fragP->fr_subtype == 7) | |
801 | { | |
802 | int offset = fragP->fr_fix; | |
803 | fragP->fr_literal[offset] = 0xdd; | |
804 | fragP->fr_literal[offset + 5] = fragP->fr_literal[offset + 3]; | |
805 | fragP->fr_literal[offset + 6] = fragP->fr_literal[offset + 4]; | |
806 | ||
807 | fix_new (fragP, fragP->fr_fix + 1, 4, fragP->fr_symbol, | |
808 | fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL); | |
809 | fragP->fr_var = 0; | |
810 | fragP->fr_fix += 7; | |
811 | } | |
812 | else if (fragP->fr_subtype == 8) | |
813 | { | |
814 | int offset = fragP->fr_fix; | |
815 | fragP->fr_literal[offset] = 0xfa; | |
816 | fragP->fr_literal[offset + 1] = 0xff; | |
817 | fix_new (fragP, fragP->fr_fix + 2, 2, fragP->fr_symbol, | |
818 | fragP->fr_offset + 2, 1, BFD_RELOC_16_PCREL); | |
819 | fragP->fr_var = 0; | |
820 | fragP->fr_fix += 4; | |
821 | } | |
822 | else if (fragP->fr_subtype == 9) | |
823 | { | |
824 | int offset = fragP->fr_fix; | |
825 | fragP->fr_literal[offset] = 0xfc; | |
826 | fragP->fr_literal[offset + 1] = 0xff; | |
827 | ||
828 | fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol, | |
829 | fragP->fr_offset + 2, 1, BFD_RELOC_32_PCREL); | |
830 | fragP->fr_var = 0; | |
831 | fragP->fr_fix += 6; | |
832 | } | |
833 | else if (fragP->fr_subtype == 10) | |
834 | { | |
835 | fragP->fr_literal[fragP->fr_fix] = 0xca; | |
836 | fix_new (fragP, fragP->fr_fix + 1, 1, fragP->fr_symbol, | |
837 | fragP->fr_offset + 1, 1, BFD_RELOC_8_PCREL); | |
838 | fragP->fr_var = 0; | |
839 | fragP->fr_fix += 2; | |
840 | } | |
841 | else if (fragP->fr_subtype == 11) | |
842 | { | |
843 | int offset = fragP->fr_fix; | |
844 | fragP->fr_literal[offset] = 0xcc; | |
845 | ||
846 | fix_new (fragP, fragP->fr_fix + 1, 4, fragP->fr_symbol, | |
847 | fragP->fr_offset + 1, 1, BFD_RELOC_16_PCREL); | |
848 | fragP->fr_var = 0; | |
849 | fragP->fr_fix += 3; | |
850 | } | |
851 | else if (fragP->fr_subtype == 12) | |
852 | { | |
853 | int offset = fragP->fr_fix; | |
854 | fragP->fr_literal[offset] = 0xdc; | |
855 | ||
856 | fix_new (fragP, fragP->fr_fix + 1, 4, fragP->fr_symbol, | |
857 | fragP->fr_offset + 1, 1, BFD_RELOC_32_PCREL); | |
858 | fragP->fr_var = 0; | |
859 | fragP->fr_fix += 5; | |
860 | } | |
861 | else | |
862 | abort (); | |
863 | } | |
864 | ||
865 | valueT | |
866 | md_section_align (seg, addr) | |
867 | asection *seg; | |
868 | valueT addr; | |
869 | { | |
870 | int align = bfd_get_section_alignment (stdoutput, seg); | |
871 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
872 | } | |
873 | ||
874 | void | |
875 | md_begin () | |
876 | { | |
877 | char *prev_name = ""; | |
878 | register const struct mn10300_opcode *op; | |
879 | ||
87271fa6 | 880 | mn10300_hash = hash_new (); |
252b5132 RH |
881 | |
882 | /* Insert unique names into hash table. The MN10300 instruction set | |
883 | has many identical opcode names that have different opcodes based | |
884 | on the operands. This hash table then provides a quick index to | |
885 | the first opcode with a particular name in the opcode table. */ | |
886 | ||
887 | op = mn10300_opcodes; | |
888 | while (op->name) | |
889 | { | |
87271fa6 | 890 | if (strcmp (prev_name, op->name)) |
252b5132 RH |
891 | { |
892 | prev_name = (char *) op->name; | |
893 | hash_insert (mn10300_hash, op->name, (char *) op); | |
894 | } | |
895 | op++; | |
896 | } | |
897 | ||
252b5132 | 898 | /* Set the default machine type. */ |
0a727238 | 899 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, MN103)) |
252b5132 RH |
900 | as_warn (_("could not set architecture and machine")); |
901 | ||
0a727238 | 902 | current_machine = MN103; |
252b5132 RH |
903 | } |
904 | ||
905 | void | |
87271fa6 | 906 | md_assemble (str) |
252b5132 RH |
907 | char *str; |
908 | { | |
909 | char *s; | |
910 | struct mn10300_opcode *opcode; | |
911 | struct mn10300_opcode *next_opcode; | |
912 | const unsigned char *opindex_ptr; | |
913 | int next_opindex, relaxable; | |
eb0dfd58 | 914 | unsigned long insn, extension, size = 0; |
252b5132 RH |
915 | char *f; |
916 | int i; | |
917 | int match; | |
918 | ||
919 | /* Get the opcode. */ | |
3882b010 | 920 | for (s = str; *s != '\0' && !ISSPACE (*s); s++) |
252b5132 RH |
921 | ; |
922 | if (*s != '\0') | |
923 | *s++ = '\0'; | |
924 | ||
87271fa6 NC |
925 | /* Find the first opcode with the proper name. */ |
926 | opcode = (struct mn10300_opcode *) hash_find (mn10300_hash, str); | |
252b5132 RH |
927 | if (opcode == NULL) |
928 | { | |
929 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
930 | return; | |
931 | } | |
932 | ||
933 | str = s; | |
3882b010 | 934 | while (ISSPACE (*str)) |
252b5132 RH |
935 | ++str; |
936 | ||
937 | input_line_pointer = str; | |
938 | ||
87271fa6 | 939 | for (;;) |
252b5132 RH |
940 | { |
941 | const char *errmsg; | |
942 | int op_idx; | |
943 | char *hold; | |
944 | int extra_shift = 0; | |
945 | ||
252b5132 RH |
946 | errmsg = _("Invalid opcode/operands"); |
947 | ||
948 | /* Reset the array of register operands. */ | |
949 | memset (mn10300_reg_operands, -1, sizeof (mn10300_reg_operands)); | |
950 | ||
951 | relaxable = 0; | |
952 | fc = 0; | |
953 | match = 0; | |
954 | next_opindex = 0; | |
955 | insn = opcode->opcode; | |
956 | extension = 0; | |
957 | ||
958 | /* If the instruction is not available on the current machine | |
959 | then it can not possibly match. */ | |
960 | if (opcode->machine | |
aa15f6f7 AO |
961 | && !(opcode->machine == AM33 && HAVE_AM33) |
962 | && !(opcode->machine == AM30 && HAVE_AM30)) | |
252b5132 RH |
963 | goto error; |
964 | ||
965 | for (op_idx = 1, opindex_ptr = opcode->operands; | |
966 | *opindex_ptr != 0; | |
967 | opindex_ptr++, op_idx++) | |
968 | { | |
969 | const struct mn10300_operand *operand; | |
970 | expressionS ex; | |
971 | ||
972 | if (next_opindex == 0) | |
973 | { | |
974 | operand = &mn10300_operands[*opindex_ptr]; | |
975 | } | |
976 | else | |
977 | { | |
978 | operand = &mn10300_operands[next_opindex]; | |
979 | next_opindex = 0; | |
980 | } | |
981 | ||
982 | while (*str == ' ' || *str == ',') | |
983 | ++str; | |
984 | ||
985 | if (operand->flags & MN10300_OPERAND_RELAX) | |
986 | relaxable = 1; | |
987 | ||
87271fa6 | 988 | /* Gather the operand. */ |
252b5132 RH |
989 | hold = input_line_pointer; |
990 | input_line_pointer = str; | |
991 | ||
992 | if (operand->flags & MN10300_OPERAND_PAREN) | |
993 | { | |
994 | if (*input_line_pointer != ')' && *input_line_pointer != '(') | |
995 | { | |
996 | input_line_pointer = hold; | |
997 | str = hold; | |
998 | goto error; | |
999 | } | |
1000 | input_line_pointer++; | |
1001 | goto keep_going; | |
1002 | } | |
1003 | /* See if we can match the operands. */ | |
1004 | else if (operand->flags & MN10300_OPERAND_DREG) | |
1005 | { | |
1006 | if (!data_register_name (&ex)) | |
1007 | { | |
1008 | input_line_pointer = hold; | |
1009 | str = hold; | |
1010 | goto error; | |
1011 | } | |
1012 | } | |
1013 | else if (operand->flags & MN10300_OPERAND_AREG) | |
1014 | { | |
1015 | if (!address_register_name (&ex)) | |
1016 | { | |
1017 | input_line_pointer = hold; | |
1018 | str = hold; | |
1019 | goto error; | |
1020 | } | |
1021 | } | |
1022 | else if (operand->flags & MN10300_OPERAND_SP) | |
1023 | { | |
1024 | char *start = input_line_pointer; | |
1025 | char c = get_symbol_end (); | |
1026 | ||
1027 | if (strcasecmp (start, "sp") != 0) | |
1028 | { | |
1029 | *input_line_pointer = c; | |
1030 | input_line_pointer = hold; | |
1031 | str = hold; | |
1032 | goto error; | |
1033 | } | |
1034 | *input_line_pointer = c; | |
1035 | goto keep_going; | |
1036 | } | |
85cb2cf9 JL |
1037 | else if (operand->flags & MN10300_OPERAND_RREG) |
1038 | { | |
1039 | if (!r_register_name (&ex)) | |
1040 | { | |
1041 | input_line_pointer = hold; | |
1042 | str = hold; | |
1043 | goto error; | |
1044 | } | |
1045 | } | |
1046 | else if (operand->flags & MN10300_OPERAND_XRREG) | |
1047 | { | |
1048 | if (!xr_register_name (&ex)) | |
1049 | { | |
1050 | input_line_pointer = hold; | |
1051 | str = hold; | |
1052 | goto error; | |
1053 | } | |
1054 | } | |
1055 | else if (operand->flags & MN10300_OPERAND_USP) | |
1056 | { | |
1057 | char *start = input_line_pointer; | |
1058 | char c = get_symbol_end (); | |
1059 | ||
1060 | if (strcasecmp (start, "usp") != 0) | |
1061 | { | |
1062 | *input_line_pointer = c; | |
1063 | input_line_pointer = hold; | |
1064 | str = hold; | |
1065 | goto error; | |
1066 | } | |
1067 | *input_line_pointer = c; | |
1068 | goto keep_going; | |
1069 | } | |
1070 | else if (operand->flags & MN10300_OPERAND_SSP) | |
1071 | { | |
1072 | char *start = input_line_pointer; | |
1073 | char c = get_symbol_end (); | |
1074 | ||
1075 | if (strcasecmp (start, "ssp") != 0) | |
1076 | { | |
1077 | *input_line_pointer = c; | |
1078 | input_line_pointer = hold; | |
1079 | str = hold; | |
1080 | goto error; | |
1081 | } | |
1082 | *input_line_pointer = c; | |
1083 | goto keep_going; | |
1084 | } | |
1085 | else if (operand->flags & MN10300_OPERAND_MSP) | |
1086 | { | |
1087 | char *start = input_line_pointer; | |
1088 | char c = get_symbol_end (); | |
1089 | ||
1090 | if (strcasecmp (start, "msp") != 0) | |
1091 | { | |
1092 | *input_line_pointer = c; | |
1093 | input_line_pointer = hold; | |
1094 | str = hold; | |
1095 | goto error; | |
1096 | } | |
1097 | *input_line_pointer = c; | |
1098 | goto keep_going; | |
1099 | } | |
1100 | else if (operand->flags & MN10300_OPERAND_PC) | |
1101 | { | |
1102 | char *start = input_line_pointer; | |
1103 | char c = get_symbol_end (); | |
1104 | ||
1105 | if (strcasecmp (start, "pc") != 0) | |
1106 | { | |
1107 | *input_line_pointer = c; | |
1108 | input_line_pointer = hold; | |
1109 | str = hold; | |
1110 | goto error; | |
1111 | } | |
1112 | *input_line_pointer = c; | |
1113 | goto keep_going; | |
1114 | } | |
1115 | else if (operand->flags & MN10300_OPERAND_EPSW) | |
1116 | { | |
1117 | char *start = input_line_pointer; | |
1118 | char c = get_symbol_end (); | |
1119 | ||
1120 | if (strcasecmp (start, "epsw") != 0) | |
1121 | { | |
1122 | *input_line_pointer = c; | |
1123 | input_line_pointer = hold; | |
1124 | str = hold; | |
1125 | goto error; | |
1126 | } | |
1127 | *input_line_pointer = c; | |
1128 | goto keep_going; | |
1129 | } | |
1130 | else if (operand->flags & MN10300_OPERAND_PLUS) | |
1131 | { | |
1132 | if (*input_line_pointer != '+') | |
1133 | { | |
1134 | input_line_pointer = hold; | |
1135 | str = hold; | |
1136 | goto error; | |
1137 | } | |
1138 | input_line_pointer++; | |
1139 | goto keep_going; | |
1140 | } | |
252b5132 RH |
1141 | else if (operand->flags & MN10300_OPERAND_PSW) |
1142 | { | |
1143 | char *start = input_line_pointer; | |
1144 | char c = get_symbol_end (); | |
1145 | ||
1146 | if (strcasecmp (start, "psw") != 0) | |
1147 | { | |
1148 | *input_line_pointer = c; | |
1149 | input_line_pointer = hold; | |
1150 | str = hold; | |
1151 | goto error; | |
1152 | } | |
1153 | *input_line_pointer = c; | |
1154 | goto keep_going; | |
1155 | } | |
1156 | else if (operand->flags & MN10300_OPERAND_MDR) | |
1157 | { | |
1158 | char *start = input_line_pointer; | |
1159 | char c = get_symbol_end (); | |
1160 | ||
1161 | if (strcasecmp (start, "mdr") != 0) | |
1162 | { | |
1163 | *input_line_pointer = c; | |
1164 | input_line_pointer = hold; | |
1165 | str = hold; | |
1166 | goto error; | |
1167 | } | |
1168 | *input_line_pointer = c; | |
1169 | goto keep_going; | |
1170 | } | |
1171 | else if (operand->flags & MN10300_OPERAND_REG_LIST) | |
1172 | { | |
1173 | unsigned int value = 0; | |
1174 | if (*input_line_pointer != '[') | |
1175 | { | |
1176 | input_line_pointer = hold; | |
1177 | str = hold; | |
1178 | goto error; | |
1179 | } | |
1180 | ||
1181 | /* Eat the '['. */ | |
1182 | input_line_pointer++; | |
87271fa6 | 1183 | |
252b5132 | 1184 | /* We used to reject a null register list here; however, |
87271fa6 NC |
1185 | we accept it now so the compiler can emit "call" |
1186 | instructions for all calls to named functions. | |
252b5132 RH |
1187 | |
1188 | The linker can then fill in the appropriate bits for the | |
1189 | register list and stack size or change the instruction | |
1190 | into a "calls" if using "call" is not profitable. */ | |
1191 | while (*input_line_pointer != ']') | |
1192 | { | |
1193 | char *start; | |
1194 | char c; | |
1195 | ||
1196 | if (*input_line_pointer == ',') | |
1197 | input_line_pointer++; | |
1198 | ||
1199 | start = input_line_pointer; | |
1200 | c = get_symbol_end (); | |
1201 | ||
1202 | if (strcasecmp (start, "d2") == 0) | |
1203 | { | |
1204 | value |= 0x80; | |
1205 | *input_line_pointer = c; | |
1206 | } | |
1207 | else if (strcasecmp (start, "d3") == 0) | |
1208 | { | |
1209 | value |= 0x40; | |
1210 | *input_line_pointer = c; | |
1211 | } | |
1212 | else if (strcasecmp (start, "a2") == 0) | |
1213 | { | |
1214 | value |= 0x20; | |
1215 | *input_line_pointer = c; | |
1216 | } | |
1217 | else if (strcasecmp (start, "a3") == 0) | |
1218 | { | |
1219 | value |= 0x10; | |
1220 | *input_line_pointer = c; | |
1221 | } | |
1222 | else if (strcasecmp (start, "other") == 0) | |
1223 | { | |
1224 | value |= 0x08; | |
1225 | *input_line_pointer = c; | |
1226 | } | |
0a727238 | 1227 | else if (HAVE_AM33 |
85cb2cf9 JL |
1228 | && strcasecmp (start, "exreg0") == 0) |
1229 | { | |
1230 | value |= 0x04; | |
1231 | *input_line_pointer = c; | |
1232 | } | |
0a727238 | 1233 | else if (HAVE_AM33 |
85cb2cf9 JL |
1234 | && strcasecmp (start, "exreg1") == 0) |
1235 | { | |
1236 | value |= 0x02; | |
1237 | *input_line_pointer = c; | |
1238 | } | |
0a727238 | 1239 | else if (HAVE_AM33 |
85cb2cf9 JL |
1240 | && strcasecmp (start, "exother") == 0) |
1241 | { | |
1242 | value |= 0x01; | |
1243 | *input_line_pointer = c; | |
1244 | } | |
0a727238 | 1245 | else if (HAVE_AM33 |
85cb2cf9 JL |
1246 | && strcasecmp (start, "all") == 0) |
1247 | { | |
1248 | value |= 0xff; | |
1249 | *input_line_pointer = c; | |
1250 | } | |
252b5132 RH |
1251 | else |
1252 | { | |
1253 | input_line_pointer = hold; | |
1254 | str = hold; | |
1255 | goto error; | |
1256 | } | |
1257 | } | |
1258 | input_line_pointer++; | |
1259 | mn10300_insert_operand (&insn, &extension, operand, | |
1260 | value, (char *) NULL, 0, 0); | |
1261 | goto keep_going; | |
1262 | ||
1263 | } | |
1264 | else if (data_register_name (&ex)) | |
1265 | { | |
1266 | input_line_pointer = hold; | |
1267 | str = hold; | |
1268 | goto error; | |
1269 | } | |
1270 | else if (address_register_name (&ex)) | |
1271 | { | |
1272 | input_line_pointer = hold; | |
1273 | str = hold; | |
1274 | goto error; | |
1275 | } | |
1276 | else if (other_register_name (&ex)) | |
1277 | { | |
1278 | input_line_pointer = hold; | |
1279 | str = hold; | |
1280 | goto error; | |
1281 | } | |
0a727238 | 1282 | else if (HAVE_AM33 && r_register_name (&ex)) |
85cb2cf9 JL |
1283 | { |
1284 | input_line_pointer = hold; | |
1285 | str = hold; | |
1286 | goto error; | |
1287 | } | |
0a727238 | 1288 | else if (HAVE_AM33 && xr_register_name (&ex)) |
85cb2cf9 JL |
1289 | { |
1290 | input_line_pointer = hold; | |
1291 | str = hold; | |
1292 | goto error; | |
1293 | } | |
252b5132 RH |
1294 | else if (*str == ')' || *str == '(') |
1295 | { | |
1296 | input_line_pointer = hold; | |
1297 | str = hold; | |
1298 | goto error; | |
1299 | } | |
1300 | else | |
1301 | { | |
1302 | expression (&ex); | |
1303 | } | |
1304 | ||
87271fa6 | 1305 | switch (ex.X_op) |
252b5132 RH |
1306 | { |
1307 | case O_illegal: | |
1308 | errmsg = _("illegal operand"); | |
1309 | goto error; | |
1310 | case O_absent: | |
1311 | errmsg = _("missing operand"); | |
1312 | goto error; | |
1313 | case O_register: | |
1314 | { | |
1315 | int mask; | |
1316 | ||
1317 | mask = MN10300_OPERAND_DREG | MN10300_OPERAND_AREG; | |
0a727238 AO |
1318 | if (HAVE_AM33) |
1319 | mask |= MN10300_OPERAND_RREG | MN10300_OPERAND_XRREG; | |
252b5132 RH |
1320 | if ((operand->flags & mask) == 0) |
1321 | { | |
1322 | input_line_pointer = hold; | |
1323 | str = hold; | |
1324 | goto error; | |
1325 | } | |
87271fa6 | 1326 | |
252b5132 RH |
1327 | if (opcode->format == FMT_D1 || opcode->format == FMT_S1) |
1328 | extra_shift = 8; | |
1329 | else if (opcode->format == FMT_D2 | |
1330 | || opcode->format == FMT_D4 | |
1331 | || opcode->format == FMT_S2 | |
1332 | || opcode->format == FMT_S4 | |
1333 | || opcode->format == FMT_S6 | |
1334 | || opcode->format == FMT_D5) | |
1335 | extra_shift = 16; | |
85cb2cf9 JL |
1336 | else if (opcode->format == FMT_D7) |
1337 | extra_shift = 8; | |
1338 | else if (opcode->format == FMT_D8 || opcode->format == FMT_D9) | |
1339 | extra_shift = 8; | |
252b5132 RH |
1340 | else |
1341 | extra_shift = 0; | |
87271fa6 | 1342 | |
252b5132 RH |
1343 | mn10300_insert_operand (&insn, &extension, operand, |
1344 | ex.X_add_number, (char *) NULL, | |
1345 | 0, extra_shift); | |
1346 | ||
252b5132 RH |
1347 | /* And note the register number in the register array. */ |
1348 | mn10300_reg_operands[op_idx - 1] = ex.X_add_number; | |
1349 | break; | |
1350 | } | |
1351 | ||
1352 | case O_constant: | |
1353 | /* If this operand can be promoted, and it doesn't | |
1354 | fit into the allocated bitfield for this insn, | |
1355 | then promote it (ie this opcode does not match). */ | |
1356 | if (operand->flags | |
1357 | & (MN10300_OPERAND_PROMOTE | MN10300_OPERAND_RELAX) | |
87271fa6 | 1358 | && !check_operand (insn, operand, ex.X_add_number)) |
252b5132 RH |
1359 | { |
1360 | input_line_pointer = hold; | |
1361 | str = hold; | |
1362 | goto error; | |
1363 | } | |
1364 | ||
1365 | mn10300_insert_operand (&insn, &extension, operand, | |
1366 | ex.X_add_number, (char *) NULL, | |
1367 | 0, 0); | |
1368 | break; | |
1369 | ||
1370 | default: | |
1371 | /* If this operand can be promoted, then this opcode didn't | |
1372 | match since we can't know if it needed promotion! */ | |
1373 | if (operand->flags & MN10300_OPERAND_PROMOTE) | |
1374 | { | |
1375 | input_line_pointer = hold; | |
1376 | str = hold; | |
1377 | goto error; | |
1378 | } | |
1379 | ||
1380 | /* We need to generate a fixup for this expression. */ | |
1381 | if (fc >= MAX_INSN_FIXUPS) | |
1382 | as_fatal (_("too many fixups")); | |
1383 | fixups[fc].exp = ex; | |
1384 | fixups[fc].opindex = *opindex_ptr; | |
1385 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
1386 | ++fc; | |
1387 | break; | |
1388 | } | |
1389 | ||
1390 | keep_going: | |
1391 | str = input_line_pointer; | |
1392 | input_line_pointer = hold; | |
1393 | ||
1394 | while (*str == ' ' || *str == ',') | |
1395 | ++str; | |
1396 | ||
1397 | } | |
1398 | ||
1399 | /* Make sure we used all the operands! */ | |
1400 | if (*str != ',') | |
1401 | match = 1; | |
1402 | ||
1403 | /* If this instruction has registers that must not match, verify | |
1404 | that they do indeed not match. */ | |
1405 | if (opcode->no_match_operands) | |
1406 | { | |
1407 | int i; | |
1408 | ||
1409 | /* Look at each operand to see if it's marked. */ | |
1410 | for (i = 0; i < MN10300_MAX_OPERANDS; i++) | |
1411 | { | |
1412 | if ((1 << i) & opcode->no_match_operands) | |
1413 | { | |
1414 | int j; | |
1415 | ||
1416 | /* operand I is marked. Check that it does not match any | |
1417 | operands > I which are marked. */ | |
1418 | for (j = i + 1; j < MN10300_MAX_OPERANDS; j++) | |
1419 | { | |
1420 | if (((1 << j) & opcode->no_match_operands) | |
1421 | && mn10300_reg_operands[i] == mn10300_reg_operands[j]) | |
1422 | { | |
1423 | errmsg = _("Invalid register specification."); | |
1424 | match = 0; | |
1425 | goto error; | |
1426 | } | |
1427 | } | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | error: | |
1433 | if (match == 0) | |
87271fa6 | 1434 | { |
252b5132 | 1435 | next_opcode = opcode + 1; |
87271fa6 | 1436 | if (!strcmp (next_opcode->name, opcode->name)) |
252b5132 RH |
1437 | { |
1438 | opcode = next_opcode; | |
1439 | continue; | |
1440 | } | |
87271fa6 | 1441 | |
252b5132 RH |
1442 | as_bad ("%s", errmsg); |
1443 | return; | |
87271fa6 | 1444 | } |
252b5132 RH |
1445 | break; |
1446 | } | |
87271fa6 | 1447 | |
3882b010 | 1448 | while (ISSPACE (*str)) |
252b5132 RH |
1449 | ++str; |
1450 | ||
1451 | if (*str != '\0') | |
1452 | as_bad (_("junk at end of line: `%s'"), str); | |
1453 | ||
1454 | input_line_pointer = str; | |
1455 | ||
1456 | /* Determine the size of the instruction. */ | |
1457 | if (opcode->format == FMT_S0) | |
1458 | size = 1; | |
1459 | ||
1460 | if (opcode->format == FMT_S1 || opcode->format == FMT_D0) | |
1461 | size = 2; | |
1462 | ||
1463 | if (opcode->format == FMT_S2 || opcode->format == FMT_D1) | |
1464 | size = 3; | |
1465 | ||
85cb2cf9 JL |
1466 | if (opcode->format == FMT_D6) |
1467 | size = 3; | |
1468 | ||
1469 | if (opcode->format == FMT_D7 || opcode->format == FMT_D10) | |
1470 | size = 4; | |
1471 | ||
1472 | if (opcode->format == FMT_D8) | |
1473 | size = 6; | |
1474 | ||
1475 | if (opcode->format == FMT_D9) | |
1476 | size = 7; | |
252b5132 RH |
1477 | |
1478 | if (opcode->format == FMT_S4) | |
1479 | size = 5; | |
1480 | ||
1481 | if (opcode->format == FMT_S6 || opcode->format == FMT_D5) | |
1482 | size = 7; | |
1483 | ||
1484 | if (opcode->format == FMT_D2) | |
1485 | size = 4; | |
1486 | ||
1487 | if (opcode->format == FMT_D4) | |
1488 | size = 6; | |
1489 | ||
1490 | if (relaxable && fc > 0) | |
1491 | { | |
1492 | int type; | |
1493 | ||
076dc439 AO |
1494 | /* We want to anchor the line info to the previous frag (if |
1495 | there isn't one, create it), so that, when the insn is | |
1496 | resized, we still get the right address for the beginning of | |
1497 | the region. */ | |
1498 | f = frag_more (0); | |
1499 | dwarf2_emit_insn (0); | |
1500 | ||
87271fa6 | 1501 | /* bCC */ |
252b5132 RH |
1502 | if (size == 2) |
1503 | { | |
1504 | /* Handle bra specially. Basically treat it like jmp so | |
1505 | that we automatically handle 8, 16 and 32 bit offsets | |
1506 | correctly as well as jumps to an undefined address. | |
1507 | ||
1508 | It is also important to not treat it like other bCC | |
1509 | instructions since the long forms of bra is different | |
1510 | from other bCC instructions. */ | |
1511 | if (opcode->opcode == 0xca00) | |
1512 | type = 10; | |
1513 | else | |
1514 | type = 0; | |
1515 | } | |
87271fa6 | 1516 | /* call */ |
252b5132 | 1517 | else if (size == 5) |
87271fa6 NC |
1518 | type = 6; |
1519 | /* calls */ | |
252b5132 RH |
1520 | else if (size == 4) |
1521 | type = 8; | |
87271fa6 | 1522 | /* jmp */ |
252b5132 RH |
1523 | else if (size == 3 && opcode->opcode == 0xcc0000) |
1524 | type = 10; | |
87271fa6 | 1525 | /* bCC (uncommon cases) */ |
252b5132 RH |
1526 | else |
1527 | type = 3; | |
1528 | ||
1529 | f = frag_var (rs_machine_dependent, 8, 8 - size, type, | |
1530 | fixups[0].exp.X_add_symbol, | |
1531 | fixups[0].exp.X_add_number, | |
1532 | (char *)fixups[0].opindex); | |
87271fa6 | 1533 | |
252b5132 RH |
1534 | /* This is pretty hokey. We basically just care about the |
1535 | opcode, so we have to write out the first word big endian. | |
1536 | ||
1537 | The exception is "call", which has two operands that we | |
1538 | care about. | |
1539 | ||
1540 | The first operand (the register list) happens to be in the | |
1541 | first instruction word, and will be in the right place if | |
1542 | we output the first word in big endian mode. | |
1543 | ||
1544 | The second operand (stack size) is in the extension word, | |
1545 | and we want it to appear as the first character in the extension | |
1546 | word (as it appears in memory). Luckily, writing the extension | |
1547 | word in big endian format will do what we want. */ | |
1548 | number_to_chars_bigendian (f, insn, size > 4 ? 4 : size); | |
1549 | if (size > 8) | |
1550 | { | |
1551 | number_to_chars_bigendian (f + 4, extension, 4); | |
1552 | number_to_chars_bigendian (f + 8, 0, size - 8); | |
1553 | } | |
1554 | else if (size > 4) | |
1555 | number_to_chars_bigendian (f + 4, extension, size - 4); | |
1556 | } | |
1557 | else | |
1558 | { | |
1559 | /* Allocate space for the instruction. */ | |
1560 | f = frag_more (size); | |
1561 | ||
1562 | /* Fill in bytes for the instruction. Note that opcode fields | |
1563 | are written big-endian, 16 & 32bit immediates are written | |
1564 | little endian. Egad. */ | |
1565 | if (opcode->format == FMT_S0 | |
1566 | || opcode->format == FMT_S1 | |
1567 | || opcode->format == FMT_D0 | |
85cb2cf9 JL |
1568 | || opcode->format == FMT_D6 |
1569 | || opcode->format == FMT_D7 | |
1570 | || opcode->format == FMT_D10 | |
252b5132 RH |
1571 | || opcode->format == FMT_D1) |
1572 | { | |
1573 | number_to_chars_bigendian (f, insn, size); | |
1574 | } | |
1575 | else if (opcode->format == FMT_S2 | |
1576 | && opcode->opcode != 0xdf0000 | |
1577 | && opcode->opcode != 0xde0000) | |
1578 | { | |
1579 | /* A format S2 instruction that is _not_ "ret" and "retf". */ | |
1580 | number_to_chars_bigendian (f, (insn >> 16) & 0xff, 1); | |
1581 | number_to_chars_littleendian (f + 1, insn & 0xffff, 2); | |
1582 | } | |
1583 | else if (opcode->format == FMT_S2) | |
1584 | { | |
1585 | /* This must be a ret or retf, which is written entirely in | |
1586 | big-endian format. */ | |
1587 | number_to_chars_bigendian (f, insn, 3); | |
1588 | } | |
1589 | else if (opcode->format == FMT_S4 | |
1590 | && opcode->opcode != 0xdc000000) | |
1591 | { | |
1592 | /* This must be a format S4 "call" instruction. What a pain. */ | |
1593 | unsigned long temp = (insn >> 8) & 0xffff; | |
1594 | number_to_chars_bigendian (f, (insn >> 24) & 0xff, 1); | |
1595 | number_to_chars_littleendian (f + 1, temp, 2); | |
1596 | number_to_chars_bigendian (f + 3, insn & 0xff, 1); | |
1597 | number_to_chars_bigendian (f + 4, extension & 0xff, 1); | |
1598 | } | |
1599 | else if (opcode->format == FMT_S4) | |
1600 | { | |
1601 | /* This must be a format S4 "jmp" instruction. */ | |
1602 | unsigned long temp = ((insn & 0xffffff) << 8) | (extension & 0xff); | |
1603 | number_to_chars_bigendian (f, (insn >> 24) & 0xff, 1); | |
1604 | number_to_chars_littleendian (f + 1, temp, 4); | |
1605 | } | |
1606 | else if (opcode->format == FMT_S6) | |
1607 | { | |
1608 | unsigned long temp = ((insn & 0xffffff) << 8) | |
1609 | | ((extension >> 16) & 0xff); | |
1610 | number_to_chars_bigendian (f, (insn >> 24) & 0xff, 1); | |
1611 | number_to_chars_littleendian (f + 1, temp, 4); | |
1612 | number_to_chars_bigendian (f + 5, (extension >> 8) & 0xff, 1); | |
1613 | number_to_chars_bigendian (f + 6, extension & 0xff, 1); | |
1614 | } | |
1615 | else if (opcode->format == FMT_D2 | |
1616 | && opcode->opcode != 0xfaf80000 | |
1617 | && opcode->opcode != 0xfaf00000 | |
1618 | && opcode->opcode != 0xfaf40000) | |
1619 | { | |
1620 | /* A format D2 instruction where the 16bit immediate is | |
1621 | really a single 16bit value, not two 8bit values. */ | |
1622 | number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2); | |
1623 | number_to_chars_littleendian (f + 2, insn & 0xffff, 2); | |
1624 | } | |
1625 | else if (opcode->format == FMT_D2) | |
1626 | { | |
1627 | /* A format D2 instruction where the 16bit immediate | |
1628 | is really two 8bit immediates. */ | |
1629 | number_to_chars_bigendian (f, insn, 4); | |
1630 | } | |
1631 | else if (opcode->format == FMT_D4) | |
1632 | { | |
1633 | unsigned long temp = ((insn & 0xffff) << 16) | (extension & 0xffff); | |
87271fa6 | 1634 | |
252b5132 RH |
1635 | number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2); |
1636 | number_to_chars_littleendian (f + 2, temp, 4); | |
1637 | } | |
1638 | else if (opcode->format == FMT_D5) | |
1639 | { | |
87271fa6 NC |
1640 | unsigned long temp = (((insn & 0xffff) << 16) |
1641 | | ((extension >> 8) & 0xffff)); | |
1642 | ||
252b5132 RH |
1643 | number_to_chars_bigendian (f, (insn >> 16) & 0xffff, 2); |
1644 | number_to_chars_littleendian (f + 2, temp, 4); | |
1645 | number_to_chars_bigendian (f + 6, extension & 0xff, 1); | |
1646 | } | |
85cb2cf9 JL |
1647 | else if (opcode->format == FMT_D8) |
1648 | { | |
87271fa6 NC |
1649 | unsigned long temp = ((insn & 0xff) << 16) | (extension & 0xffff); |
1650 | ||
1651 | number_to_chars_bigendian (f, (insn >> 8) & 0xffffff, 3); | |
1652 | number_to_chars_bigendian (f + 3, (temp & 0xff), 1); | |
1653 | number_to_chars_littleendian (f + 4, temp >> 8, 2); | |
85cb2cf9 JL |
1654 | } |
1655 | else if (opcode->format == FMT_D9) | |
1656 | { | |
87271fa6 NC |
1657 | unsigned long temp = ((insn & 0xff) << 24) | (extension & 0xffffff); |
1658 | ||
1659 | number_to_chars_bigendian (f, (insn >> 8) & 0xffffff, 3); | |
1660 | number_to_chars_littleendian (f + 3, temp, 4); | |
85cb2cf9 | 1661 | } |
252b5132 RH |
1662 | |
1663 | /* Create any fixups. */ | |
1664 | for (i = 0; i < fc; i++) | |
1665 | { | |
1666 | const struct mn10300_operand *operand; | |
1667 | ||
1668 | operand = &mn10300_operands[fixups[i].opindex]; | |
1669 | if (fixups[i].reloc != BFD_RELOC_UNUSED) | |
1670 | { | |
1671 | reloc_howto_type *reloc_howto; | |
1672 | int size; | |
1673 | int offset; | |
1674 | fixS *fixP; | |
1675 | ||
87271fa6 NC |
1676 | reloc_howto = bfd_reloc_type_lookup (stdoutput, |
1677 | fixups[i].reloc); | |
252b5132 RH |
1678 | |
1679 | if (!reloc_howto) | |
87271fa6 NC |
1680 | abort (); |
1681 | ||
252b5132 RH |
1682 | size = bfd_get_reloc_size (reloc_howto); |
1683 | ||
1684 | if (size < 1 || size > 4) | |
87271fa6 | 1685 | abort (); |
252b5132 RH |
1686 | |
1687 | offset = 4 - size; | |
1688 | fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset, | |
1689 | size, &fixups[i].exp, | |
1690 | reloc_howto->pc_relative, | |
1691 | fixups[i].reloc); | |
1692 | } | |
1693 | else | |
1694 | { | |
1695 | int reloc, pcrel, reloc_size, offset; | |
1696 | fixS *fixP; | |
1697 | ||
1698 | reloc = BFD_RELOC_NONE; | |
1699 | /* How big is the reloc? Remember SPLIT relocs are | |
1700 | implicitly 32bits. */ | |
1701 | if ((operand->flags & MN10300_OPERAND_SPLIT) != 0) | |
1702 | reloc_size = 32; | |
85cb2cf9 JL |
1703 | else if ((operand->flags & MN10300_OPERAND_24BIT) != 0) |
1704 | reloc_size = 24; | |
252b5132 RH |
1705 | else |
1706 | reloc_size = operand->bits; | |
1707 | ||
1708 | /* Is the reloc pc-relative? */ | |
1709 | pcrel = (operand->flags & MN10300_OPERAND_PCREL) != 0; | |
1710 | ||
a7c92dae | 1711 | offset = size - (reloc_size + operand->shift) / 8; |
eb0dfd58 | 1712 | |
252b5132 RH |
1713 | /* Choose a proper BFD relocation type. */ |
1714 | if (pcrel) | |
1715 | { | |
1716 | if (reloc_size == 32) | |
1717 | reloc = BFD_RELOC_32_PCREL; | |
1718 | else if (reloc_size == 16) | |
1719 | reloc = BFD_RELOC_16_PCREL; | |
1720 | else if (reloc_size == 8) | |
1721 | reloc = BFD_RELOC_8_PCREL; | |
1722 | else | |
1723 | abort (); | |
1724 | } | |
1725 | else | |
1726 | { | |
1727 | if (reloc_size == 32) | |
1728 | reloc = BFD_RELOC_32; | |
1729 | else if (reloc_size == 16) | |
1730 | reloc = BFD_RELOC_16; | |
1731 | else if (reloc_size == 8) | |
1732 | reloc = BFD_RELOC_8; | |
1733 | else | |
1734 | abort (); | |
1735 | } | |
1736 | ||
1737 | /* Convert the size of the reloc into what fix_new_exp wants. */ | |
1738 | reloc_size = reloc_size / 8; | |
1739 | if (reloc_size == 8) | |
1740 | reloc_size = 0; | |
1741 | else if (reloc_size == 16) | |
1742 | reloc_size = 1; | |
1743 | else if (reloc_size == 32) | |
1744 | reloc_size = 2; | |
1745 | ||
1746 | fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset, | |
1747 | reloc_size, &fixups[i].exp, pcrel, | |
1748 | ((bfd_reloc_code_real_type) reloc)); | |
1749 | ||
1750 | if (pcrel) | |
1751 | fixP->fx_offset += offset; | |
1752 | } | |
1753 | } | |
e8b1cae5 | 1754 | |
076dc439 AO |
1755 | dwarf2_emit_insn (size); |
1756 | } | |
252b5132 RH |
1757 | } |
1758 | ||
87271fa6 NC |
1759 | /* If while processing a fixup, a reloc really needs to be created |
1760 | then it is done here. */ | |
252b5132 | 1761 | |
252b5132 RH |
1762 | arelent * |
1763 | tc_gen_reloc (seg, fixp) | |
b4c1ea07 | 1764 | asection *seg ATTRIBUTE_UNUSED; |
252b5132 RH |
1765 | fixS *fixp; |
1766 | { | |
1767 | arelent *reloc; | |
1768 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
1769 | ||
1770 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
1771 | if (reloc->howto == (reloc_howto_type *) NULL) | |
1772 | { | |
1773 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
87271fa6 NC |
1774 | _("reloc %d not supported by object file format"), |
1775 | (int) fixp->fx_r_type); | |
252b5132 RH |
1776 | return NULL; |
1777 | } | |
1778 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1779 | ||
1780 | if (fixp->fx_addsy && fixp->fx_subsy) | |
1781 | { | |
7dc8f5ce AO |
1782 | reloc->sym_ptr_ptr = NULL; |
1783 | ||
4e75439a AO |
1784 | /* If we got a difference between two symbols, and the |
1785 | subtracted symbol is in the current section, use a | |
1786 | PC-relative relocation. If both symbols are in the same | |
1787 | section, the difference would have already been simplified | |
1788 | to a constant. */ | |
1789 | if (S_GET_SEGMENT (fixp->fx_subsy) == seg) | |
1790 | { | |
1791 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
1792 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
1793 | reloc->addend = (reloc->address - S_GET_VALUE (fixp->fx_subsy) | |
1794 | + fixp->fx_offset); | |
1795 | ||
1796 | switch (fixp->fx_r_type) | |
1797 | { | |
1798 | case BFD_RELOC_8: | |
1799 | reloc->howto = bfd_reloc_type_lookup (stdoutput, | |
1800 | BFD_RELOC_8_PCREL); | |
1801 | return reloc; | |
1802 | ||
1803 | case BFD_RELOC_16: | |
1804 | reloc->howto = bfd_reloc_type_lookup (stdoutput, | |
1805 | BFD_RELOC_16_PCREL); | |
1806 | return reloc; | |
1807 | ||
1808 | case BFD_RELOC_24: | |
1809 | reloc->howto = bfd_reloc_type_lookup (stdoutput, | |
1810 | BFD_RELOC_24_PCREL); | |
1811 | return reloc; | |
1812 | ||
1813 | case BFD_RELOC_32: | |
1814 | reloc->howto = bfd_reloc_type_lookup (stdoutput, | |
1815 | BFD_RELOC_32_PCREL); | |
1816 | return reloc; | |
1817 | ||
1818 | default: | |
1819 | /* Try to compute the absolute value below. */ | |
1820 | break; | |
1821 | } | |
1822 | } | |
87271fa6 | 1823 | |
252b5132 RH |
1824 | if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy)) |
1825 | || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section) | |
1826 | { | |
1827 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1828 | "Difference of symbols in different sections is not supported"); | |
252b5132 | 1829 | } |
6e22e505 AO |
1830 | else |
1831 | { | |
1832 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
1833 | ||
1834 | reloc->addend = (S_GET_VALUE (fixp->fx_addsy) | |
1835 | - S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset); | |
1836 | ||
1837 | switch (fixp->fx_r_type) | |
1838 | { | |
1839 | case BFD_RELOC_8: | |
1840 | md_number_to_chars (fixpos, reloc->addend, 1); | |
1841 | break; | |
1842 | ||
1843 | case BFD_RELOC_16: | |
1844 | md_number_to_chars (fixpos, reloc->addend, 2); | |
1845 | break; | |
252b5132 | 1846 | |
6e22e505 AO |
1847 | case BFD_RELOC_24: |
1848 | md_number_to_chars (fixpos, reloc->addend, 3); | |
1849 | break; | |
1850 | ||
1851 | case BFD_RELOC_32: | |
1852 | md_number_to_chars (fixpos, reloc->addend, 4); | |
1853 | break; | |
1854 | ||
1855 | default: | |
1856 | reloc->sym_ptr_ptr = (asymbol **) &bfd_abs_symbol; | |
1857 | return reloc; | |
1858 | } | |
1859 | } | |
1860 | ||
7dc8f5ce AO |
1861 | if (reloc->sym_ptr_ptr) |
1862 | free (reloc->sym_ptr_ptr); | |
6e22e505 AO |
1863 | free (reloc); |
1864 | return NULL; | |
252b5132 | 1865 | } |
87271fa6 | 1866 | else |
252b5132 | 1867 | { |
87271fa6 | 1868 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
310b5aa2 | 1869 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
252b5132 RH |
1870 | reloc->addend = fixp->fx_offset; |
1871 | } | |
1872 | return reloc; | |
1873 | } | |
1874 | ||
1875 | int | |
1876 | md_estimate_size_before_relax (fragp, seg) | |
1877 | fragS *fragp; | |
1878 | asection *seg; | |
1879 | { | |
93c2a809 AM |
1880 | if (fragp->fr_subtype == 6 |
1881 | && (!S_IS_DEFINED (fragp->fr_symbol) | |
1882 | || seg != S_GET_SEGMENT (fragp->fr_symbol))) | |
1883 | fragp->fr_subtype = 7; | |
1884 | else if (fragp->fr_subtype == 8 | |
1885 | && (!S_IS_DEFINED (fragp->fr_symbol) | |
1886 | || seg != S_GET_SEGMENT (fragp->fr_symbol))) | |
1887 | fragp->fr_subtype = 9; | |
1888 | else if (fragp->fr_subtype == 10 | |
1889 | && (!S_IS_DEFINED (fragp->fr_symbol) | |
1890 | || seg != S_GET_SEGMENT (fragp->fr_symbol))) | |
1891 | fragp->fr_subtype = 12; | |
1892 | ||
1893 | if (fragp->fr_subtype >= sizeof (md_relax_table) / sizeof (md_relax_table[0])) | |
1894 | abort (); | |
1895 | ||
1896 | return md_relax_table[fragp->fr_subtype].rlx_length; | |
87271fa6 | 1897 | } |
252b5132 RH |
1898 | |
1899 | long | |
1900 | md_pcrel_from (fixp) | |
1901 | fixS *fixp; | |
1902 | { | |
87271fa6 | 1903 | if (fixp->fx_addsy != (symbolS *) NULL && !S_IS_DEFINED (fixp->fx_addsy)) |
252b5132 RH |
1904 | { |
1905 | /* The symbol is undefined. Let the linker figure it out. */ | |
1906 | return 0; | |
1907 | } | |
1908 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
252b5132 RH |
1909 | } |
1910 | ||
1911 | int | |
1912 | md_apply_fix3 (fixp, valuep, seg) | |
1913 | fixS *fixp; | |
c51ce5f0 | 1914 | valueT *valuep; |
252b5132 RH |
1915 | segT seg; |
1916 | { | |
58a77e41 EC |
1917 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; |
1918 | int size = 0; | |
c51ce5f0 | 1919 | int value; |
58a77e41 EC |
1920 | |
1921 | assert (fixp->fx_r_type < BFD_RELOC_UNUSED); | |
1922 | ||
1923 | /* This should never happen. */ | |
1924 | if (seg->flags & SEC_ALLOC) | |
1925 | abort (); | |
1926 | ||
c51ce5f0 EC |
1927 | /* The value we are passed in *valuep includes the symbol values. |
1928 | Since we are using BFD_ASSEMBLER, if we are doing this relocation | |
1929 | the code in write.c is going to call bfd_install_relocation, which | |
1930 | is also going to use the symbol value. That means that if the | |
1931 | reloc is fully resolved we want to use *valuep since | |
1932 | bfd_install_relocation is not being used. | |
1933 | ||
1934 | However, if the reloc is not fully resolved we do not want to use | |
1935 | *valuep, and must use fx_offset instead. However, if the reloc | |
1936 | is PC relative, we do want to use *valuep since it includes the | |
1937 | result of md_pcrel_from. */ | |
1938 | if (fixp->fx_addsy == (symbolS *) NULL || fixp->fx_pcrel) | |
1939 | value = *valuep; | |
1940 | else | |
1941 | value = fixp->fx_offset; | |
1942 | ||
58a77e41 EC |
1943 | /* If the fix is relative to a symbol which is not defined, or not |
1944 | in the same segment as the fix, we cannot resolve it here. */ | |
1945 | if (fixp->fx_addsy != NULL | |
1946 | && (! S_IS_DEFINED (fixp->fx_addsy) | |
1947 | || (S_GET_SEGMENT (fixp->fx_addsy) != seg))) | |
1948 | { | |
1949 | fixp->fx_done = 0; | |
1950 | return 0; | |
1951 | } | |
1952 | ||
1953 | switch (fixp->fx_r_type) | |
1954 | { | |
1955 | case BFD_RELOC_8: | |
96f37af6 | 1956 | case BFD_RELOC_8_PCREL: |
58a77e41 EC |
1957 | size = 1; |
1958 | break; | |
1959 | ||
1960 | case BFD_RELOC_16: | |
96f37af6 | 1961 | case BFD_RELOC_16_PCREL: |
58a77e41 EC |
1962 | size = 2; |
1963 | break; | |
1964 | ||
1965 | case BFD_RELOC_32: | |
96f37af6 | 1966 | case BFD_RELOC_32_PCREL: |
58a77e41 EC |
1967 | size = 4; |
1968 | break; | |
1969 | ||
1970 | case BFD_RELOC_VTABLE_INHERIT: | |
1971 | case BFD_RELOC_VTABLE_ENTRY: | |
1972 | fixp->fx_done = 0; | |
1973 | return 1; | |
1974 | ||
1975 | case BFD_RELOC_NONE: | |
1976 | default: | |
1977 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1978 | _("Bad relocation fixup type (%d)"), fixp->fx_r_type); | |
1979 | } | |
1980 | ||
c51ce5f0 | 1981 | md_number_to_chars (fixpos, value, size); |
58a77e41 | 1982 | |
b653e7f9 NC |
1983 | /* If a symbol remains, pass the fixup, as a reloc, onto the linker. */ |
1984 | if (fixp->fx_addsy == NULL) | |
1985 | fixp->fx_done = 1; | |
58a77e41 | 1986 | |
b653e7f9 | 1987 | return 0; |
58a77e41 EC |
1988 | } |
1989 | ||
1990 | /* Return nonzero if the fixup in FIXP will require a relocation, | |
1991 | even it if appears that the fixup could be completely handled | |
1992 | within GAS. */ | |
1993 | ||
1994 | int | |
1995 | mn10300_force_relocation (fixp) | |
1996 | struct fix *fixp; | |
1997 | { | |
1998 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
1999 | || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2000 | return 1; | |
2001 | ||
7e8f4100 AO |
2002 | /* Do not adjust relocations involving symbols in code sections, |
2003 | because it breaks linker relaxations. This could be fixed in the | |
2004 | linker, but this fix is simpler, and it pretty much only affects | |
2005 | object size a little bit. */ | |
2006 | if ((S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_CODE) | |
2007 | && fixp->fx_subsy | |
2008 | && S_GET_SEGMENT (fixp->fx_addsy) == S_GET_SEGMENT (fixp->fx_subsy)) | |
2009 | return 1; | |
2010 | ||
58a77e41 EC |
2011 | return 0; |
2012 | } | |
2013 | ||
2014 | /* Return zero if the fixup in fixp should be left alone and not | |
2015 | adjusted. */ | |
2016 | ||
2017 | boolean | |
2018 | mn10300_fix_adjustable (fixp) | |
2019 | struct fix *fixp; | |
2020 | { | |
2021 | /* Prevent all adjustments to global symbols. */ | |
2022 | if (S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy)) | |
2023 | return 0; | |
2024 | ||
2025 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
2026 | || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2027 | return 0; | |
2028 | ||
7e8f4100 AO |
2029 | /* Do not adjust relocations involving symbols in code sections, |
2030 | because it breaks linker relaxations. This could be fixed in the | |
2031 | linker, but this fix is simpler, and it pretty much only affects | |
2032 | object size a little bit. */ | |
2033 | if (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_CODE) | |
2034 | return 0; | |
2035 | ||
58a77e41 | 2036 | return 1; |
252b5132 RH |
2037 | } |
2038 | ||
2039 | /* Insert an operand value into an instruction. */ | |
2040 | ||
2041 | static void | |
2042 | mn10300_insert_operand (insnp, extensionp, operand, val, file, line, shift) | |
2043 | unsigned long *insnp; | |
2044 | unsigned long *extensionp; | |
2045 | const struct mn10300_operand *operand; | |
2046 | offsetT val; | |
2047 | char *file; | |
2048 | unsigned int line; | |
2049 | unsigned int shift; | |
2050 | { | |
2051 | /* No need to check 32bit operands for a bit. Note that | |
2052 | MN10300_OPERAND_SPLIT is an implicit 32bit operand. */ | |
2053 | if (operand->bits != 32 | |
2054 | && (operand->flags & MN10300_OPERAND_SPLIT) == 0) | |
2055 | { | |
2056 | long min, max; | |
2057 | offsetT test; | |
2058 | int bits; | |
2059 | ||
2060 | bits = operand->bits; | |
85cb2cf9 JL |
2061 | if (operand->flags & MN10300_OPERAND_24BIT) |
2062 | bits = 24; | |
252b5132 RH |
2063 | |
2064 | if ((operand->flags & MN10300_OPERAND_SIGNED) != 0) | |
2065 | { | |
2066 | max = (1 << (bits - 1)) - 1; | |
2067 | min = - (1 << (bits - 1)); | |
2068 | } | |
2069 | else | |
87271fa6 NC |
2070 | { |
2071 | max = (1 << bits) - 1; | |
2072 | min = 0; | |
2073 | } | |
252b5132 RH |
2074 | |
2075 | test = val; | |
2076 | ||
252b5132 | 2077 | if (test < (offsetT) min || test > (offsetT) max) |
87271fa6 NC |
2078 | { |
2079 | const char *err = | |
2080 | _("operand out of range (%s not between %ld and %ld)"); | |
2081 | char buf[100]; | |
2082 | ||
2083 | sprint_value (buf, test); | |
2084 | if (file == (char *) NULL) | |
2085 | as_warn (err, buf, min, max); | |
2086 | else | |
2087 | as_warn_where (file, line, err, buf, min, max); | |
2088 | } | |
252b5132 RH |
2089 | } |
2090 | ||
2091 | if ((operand->flags & MN10300_OPERAND_SPLIT) != 0) | |
2092 | { | |
2093 | *insnp |= (val >> (32 - operand->bits)) & ((1 << operand->bits) - 1); | |
2094 | *extensionp |= ((val & ((1 << (32 - operand->bits)) - 1)) | |
2095 | << operand->shift); | |
2096 | } | |
85cb2cf9 JL |
2097 | else if ((operand->flags & MN10300_OPERAND_24BIT) != 0) |
2098 | { | |
2099 | *insnp |= (val >> (24 - operand->bits)) & ((1 << operand->bits) - 1); | |
2100 | *extensionp |= ((val & ((1 << (24 - operand->bits)) - 1)) | |
2101 | << operand->shift); | |
2102 | } | |
252b5132 RH |
2103 | else if ((operand->flags & MN10300_OPERAND_EXTENDED) == 0) |
2104 | { | |
2105 | *insnp |= (((long) val & ((1 << operand->bits) - 1)) | |
2106 | << (operand->shift + shift)); | |
2107 | ||
2108 | if ((operand->flags & MN10300_OPERAND_REPEATED) != 0) | |
2109 | *insnp |= (((long) val & ((1 << operand->bits) - 1)) | |
2110 | << (operand->shift + shift + operand->bits)); | |
2111 | } | |
2112 | else | |
2113 | { | |
2114 | *extensionp |= (((long) val & ((1 << operand->bits) - 1)) | |
2115 | << (operand->shift + shift)); | |
2116 | ||
2117 | if ((operand->flags & MN10300_OPERAND_REPEATED) != 0) | |
2118 | *extensionp |= (((long) val & ((1 << operand->bits) - 1)) | |
2119 | << (operand->shift + shift + operand->bits)); | |
2120 | } | |
2121 | } | |
2122 | ||
2123 | static unsigned long | |
2124 | check_operand (insn, operand, val) | |
b4c1ea07 | 2125 | unsigned long insn ATTRIBUTE_UNUSED; |
252b5132 RH |
2126 | const struct mn10300_operand *operand; |
2127 | offsetT val; | |
2128 | { | |
2129 | /* No need to check 32bit operands for a bit. Note that | |
2130 | MN10300_OPERAND_SPLIT is an implicit 32bit operand. */ | |
2131 | if (operand->bits != 32 | |
2132 | && (operand->flags & MN10300_OPERAND_SPLIT) == 0) | |
2133 | { | |
2134 | long min, max; | |
2135 | offsetT test; | |
2136 | int bits; | |
2137 | ||
2138 | bits = operand->bits; | |
85cb2cf9 JL |
2139 | if (operand->flags & MN10300_OPERAND_24BIT) |
2140 | bits = 24; | |
252b5132 RH |
2141 | |
2142 | if ((operand->flags & MN10300_OPERAND_SIGNED) != 0) | |
2143 | { | |
2144 | max = (1 << (bits - 1)) - 1; | |
2145 | min = - (1 << (bits - 1)); | |
2146 | } | |
2147 | else | |
87271fa6 NC |
2148 | { |
2149 | max = (1 << bits) - 1; | |
2150 | min = 0; | |
2151 | } | |
252b5132 RH |
2152 | |
2153 | test = val; | |
2154 | ||
252b5132 RH |
2155 | if (test < (offsetT) min || test > (offsetT) max) |
2156 | return 0; | |
2157 | else | |
2158 | return 1; | |
2159 | } | |
2160 | return 1; | |
2161 | } | |
2162 | ||
2163 | static void | |
2164 | set_arch_mach (mach) | |
0e1a166b | 2165 | unsigned int mach; |
252b5132 RH |
2166 | { |
2167 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_mn10300, mach)) | |
2168 | as_warn (_("could not set architecture and machine")); | |
2169 | ||
2170 | current_machine = mach; | |
2171 | } |