Commit | Line | Data |
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7ba29e2a NC |
1 | /* tc-microblaze.c -- Assemble code for Xilinx MicroBlaze |
2 | ||
2571583a | 3 | Copyright (C) 2009-2017 Free Software Foundation, Inc. |
7ba29e2a NC |
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 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA | |
20 | 02110-1301, USA. */ | |
21 | ||
7ba29e2a | 22 | #include "as.h" |
df7b86aa | 23 | #include <stdio.h> |
7ba29e2a NC |
24 | #include "bfd.h" |
25 | #include "subsegs.h" | |
26 | #define DEFINE_TABLE | |
27 | #include "../opcodes/microblaze-opc.h" | |
28 | #include "../opcodes/microblaze-opcm.h" | |
e23c5ac0 | 29 | #include "safe-ctype.h" |
7ba29e2a NC |
30 | #include <string.h> |
31 | #include <dwarf2dbg.h> | |
32 | #include "aout/stab_gnu.h" | |
33 | ||
34 | #ifndef streq | |
35 | #define streq(a,b) (strcmp (a, b) == 0) | |
36 | #endif | |
37 | ||
f23200ad ME |
38 | #define OPTION_EB (OPTION_MD_BASE + 0) |
39 | #define OPTION_EL (OPTION_MD_BASE + 1) | |
40 | ||
7ba29e2a NC |
41 | void microblaze_generate_symbol (char *sym); |
42 | static bfd_boolean check_spl_reg (unsigned *); | |
43 | ||
44 | /* Several places in this file insert raw instructions into the | |
45 | object. They should generate the instruction | |
46 | and then use these four macros to crack the instruction value into | |
47 | the appropriate byte values. */ | |
48 | #define INST_BYTE0(x) (target_big_endian ? (((x) >> 24) & 0xFF) : ((x) & 0xFF)) | |
49 | #define INST_BYTE1(x) (target_big_endian ? (((x) >> 16) & 0xFF) : (((x) >> 8) & 0xFF)) | |
50 | #define INST_BYTE2(x) (target_big_endian ? (((x) >> 8) & 0xFF) : (((x) >> 16) & 0xFF)) | |
51 | #define INST_BYTE3(x) (target_big_endian ? ((x) & 0xFF) : (((x) >> 24) & 0xFF)) | |
52 | ||
53 | /* This array holds the chars that always start a comment. If the | |
54 | pre-processor is disabled, these aren't very useful. */ | |
55 | const char comment_chars[] = "#"; | |
56 | ||
57 | const char line_separator_chars[] = ";"; | |
58 | ||
59 | /* This array holds the chars that only start a comment at the beginning of | |
60 | a line. */ | |
61 | const char line_comment_chars[] = "#"; | |
62 | ||
63 | const int md_reloc_size = 8; /* Size of relocation record. */ | |
64 | ||
65 | /* Chars that can be used to separate mant | |
66 | from exp in floating point numbers. */ | |
67 | const char EXP_CHARS[] = "eE"; | |
68 | ||
69 | /* Chars that mean this number is a floating point constant | |
70 | As in 0f12.456 | |
71 | or 0d1.2345e12. */ | |
72 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
73 | ||
74 | /* INST_PC_OFFSET and INST_NO_OFFSET are 0 and 1. */ | |
75 | #define UNDEFINED_PC_OFFSET 2 | |
76 | #define DEFINED_ABS_SEGMENT 3 | |
77 | #define DEFINED_PC_OFFSET 4 | |
78 | #define DEFINED_RO_SEGMENT 5 | |
79 | #define DEFINED_RW_SEGMENT 6 | |
80 | #define LARGE_DEFINED_PC_OFFSET 7 | |
81 | #define GOT_OFFSET 8 | |
82 | #define PLT_OFFSET 9 | |
83 | #define GOTOFF_OFFSET 10 | |
69b06cc8 ME |
84 | #define TLSGD_OFFSET 11 |
85 | #define TLSLD_OFFSET 12 | |
86 | #define TLSDTPMOD_OFFSET 13 | |
87 | #define TLSDTPREL_OFFSET 14 | |
88 | #define TLSGOTTPREL_OFFSET 15 | |
89 | #define TLSTPREL_OFFSET 16 | |
7ba29e2a NC |
90 | |
91 | /* Initialize the relax table. */ | |
92 | const relax_typeS md_relax_table[] = | |
93 | { | |
94 | { 1, 1, 0, 0 }, /* 0: Unused. */ | |
95 | { 1, 1, 0, 0 }, /* 1: Unused. */ | |
96 | { 1, 1, 0, 0 }, /* 2: Unused. */ | |
97 | { 1, 1, 0, 0 }, /* 3: Unused. */ | |
98 | { 32767, -32768, INST_WORD_SIZE, LARGE_DEFINED_PC_OFFSET }, /* 4: DEFINED_PC_OFFSET. */ | |
99 | { 1, 1, 0, 0 }, /* 5: Unused. */ | |
100 | { 1, 1, 0, 0 }, /* 6: Unused. */ | |
101 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 7: LARGE_DEFINED_PC_OFFSET. */ | |
102 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 8: GOT_OFFSET. */ | |
103 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 9: PLT_OFFSET. */ | |
104 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 10: GOTOFF_OFFSET. */ | |
69b06cc8 ME |
105 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 11: TLSGD_OFFSET. */ |
106 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 12: TLSLD_OFFSET. */ | |
107 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*1, 0 }, /* 13: TLSDTPMOD_OFFSET. */ | |
108 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 14: TLSDTPREL_OFFSET. */ | |
109 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 15: TLSGOTTPREL_OFFSET. */ | |
110 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 } /* 16: TLSTPREL_OFFSET. */ | |
7ba29e2a NC |
111 | }; |
112 | ||
113 | static struct hash_control * opcode_hash_control; /* Opcode mnemonics. */ | |
114 | ||
115 | static segT sbss_segment = 0; /* Small bss section. */ | |
116 | static segT sbss2_segment = 0; /* Section not used. */ | |
117 | static segT sdata_segment = 0; /* Small data section. */ | |
118 | static segT sdata2_segment = 0; /* Small read-only section. */ | |
119 | static segT rodata_segment = 0; /* read-only section. */ | |
120 | ||
121 | /* Generate a symbol for stabs information. */ | |
122 | ||
123 | void | |
124 | microblaze_generate_symbol (char *sym) | |
125 | { | |
126 | #define MICROBLAZE_FAKE_LABEL_NAME "XL0\001" | |
127 | static int microblaze_label_count; | |
128 | sprintf (sym, "%sL%d", MICROBLAZE_FAKE_LABEL_NAME, microblaze_label_count); | |
129 | ++microblaze_label_count; | |
130 | } | |
131 | ||
132 | /* Handle the section changing pseudo-ops. */ | |
133 | ||
134 | static void | |
135 | microblaze_s_text (int ignore ATTRIBUTE_UNUSED) | |
136 | { | |
137 | #ifdef OBJ_ELF | |
138 | obj_elf_text (ignore); | |
139 | #else | |
140 | s_text (ignore); | |
141 | #endif | |
142 | } | |
143 | ||
144 | static void | |
145 | microblaze_s_data (int ignore ATTRIBUTE_UNUSED) | |
146 | { | |
147 | #ifdef OBJ_ELF | |
148 | obj_elf_change_section (".data", SHT_PROGBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0); | |
149 | #else | |
150 | s_data (ignore); | |
151 | #endif | |
152 | } | |
153 | ||
154 | /* Things in the .sdata segment are always considered to be in the small data section. */ | |
155 | ||
156 | static void | |
157 | microblaze_s_sdata (int ignore ATTRIBUTE_UNUSED) | |
158 | { | |
159 | #ifdef OBJ_ELF | |
160 | obj_elf_change_section (".sdata", SHT_PROGBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0); | |
161 | #else | |
162 | s_data (ignore); | |
163 | #endif | |
164 | } | |
165 | ||
166 | /* Pseudo op to make file scope bss items. */ | |
167 | ||
168 | static void | |
169 | microblaze_s_lcomm (int xxx ATTRIBUTE_UNUSED) | |
170 | { | |
171 | char *name; | |
172 | char c; | |
173 | char *p; | |
174 | offsetT size; | |
175 | symbolS *symbolP; | |
176 | offsetT align; | |
7ba29e2a NC |
177 | char *pfrag; |
178 | int align2; | |
179 | segT current_seg = now_seg; | |
180 | subsegT current_subseg = now_subseg; | |
181 | ||
d02603dc | 182 | c = get_symbol_name (&name); |
7ba29e2a NC |
183 | |
184 | /* Just after name is now '\0'. */ | |
185 | p = input_line_pointer; | |
d02603dc | 186 | (void) restore_line_pointer (c); |
7ba29e2a NC |
187 | SKIP_WHITESPACE (); |
188 | if (*input_line_pointer != ',') | |
189 | { | |
190 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
191 | ignore_rest_of_line (); | |
192 | return; | |
193 | } | |
194 | ||
195 | input_line_pointer++; /* skip ',' */ | |
196 | if ((size = get_absolute_expression ()) < 0) | |
197 | { | |
198 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
199 | ignore_rest_of_line (); | |
200 | return; | |
201 | } | |
202 | ||
203 | /* The third argument to .lcomm is the alignment. */ | |
204 | if (*input_line_pointer != ',') | |
205 | align = 8; | |
206 | else | |
207 | { | |
208 | ++input_line_pointer; | |
209 | align = get_absolute_expression (); | |
210 | if (align <= 0) | |
211 | { | |
212 | as_warn (_("ignoring bad alignment")); | |
213 | align = 8; | |
214 | } | |
215 | } | |
216 | ||
217 | *p = 0; | |
218 | symbolP = symbol_find_or_make (name); | |
219 | *p = c; | |
220 | ||
221 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
222 | { | |
223 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
224 | S_GET_NAME (symbolP)); | |
225 | ignore_rest_of_line (); | |
226 | return; | |
227 | } | |
228 | ||
229 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
230 | { | |
231 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
232 | S_GET_NAME (symbolP), | |
233 | (long) S_GET_VALUE (symbolP), | |
234 | (long) size); | |
235 | ||
236 | ignore_rest_of_line (); | |
237 | return; | |
238 | } | |
239 | ||
240 | /* Allocate_bss. */ | |
7ba29e2a NC |
241 | if (align) |
242 | { | |
243 | /* Convert to a power of 2 alignment. */ | |
244 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); | |
245 | if (align != 1) | |
246 | { | |
247 | as_bad (_("Common alignment not a power of 2")); | |
248 | ignore_rest_of_line (); | |
249 | return; | |
250 | } | |
251 | } | |
252 | else | |
253 | align2 = 0; | |
254 | ||
255 | record_alignment (current_seg, align2); | |
256 | subseg_set (current_seg, current_subseg); | |
257 | if (align2) | |
258 | frag_align (align2, 0, 0); | |
259 | if (S_GET_SEGMENT (symbolP) == current_seg) | |
260 | symbol_get_frag (symbolP)->fr_symbol = 0; | |
261 | symbol_set_frag (symbolP, frag_now); | |
262 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, | |
263 | (char *) 0); | |
264 | *pfrag = 0; | |
265 | S_SET_SIZE (symbolP, size); | |
266 | S_SET_SEGMENT (symbolP, current_seg); | |
267 | subseg_set (current_seg, current_subseg); | |
268 | demand_empty_rest_of_line (); | |
269 | } | |
270 | ||
271 | static void | |
272 | microblaze_s_rdata (int localvar) | |
273 | { | |
274 | #ifdef OBJ_ELF | |
275 | if (localvar == 0) | |
276 | { | |
277 | /* rodata. */ | |
278 | obj_elf_change_section (".rodata", SHT_PROGBITS, SHF_ALLOC, 0, 0, 0, 0); | |
279 | if (rodata_segment == 0) | |
280 | rodata_segment = subseg_new (".rodata", 0); | |
281 | } | |
282 | else | |
283 | { | |
284 | /* 1 .sdata2. */ | |
285 | obj_elf_change_section (".sdata2", SHT_PROGBITS, SHF_ALLOC, 0, 0, 0, 0); | |
286 | } | |
287 | #else | |
288 | s_data (ignore); | |
289 | #endif | |
290 | } | |
291 | ||
292 | static void | |
293 | microblaze_s_bss (int localvar) | |
294 | { | |
295 | #ifdef OBJ_ELF | |
296 | if (localvar == 0) /* bss. */ | |
297 | obj_elf_change_section (".bss", SHT_NOBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0); | |
298 | else if (localvar == 1) | |
299 | { | |
300 | /* sbss. */ | |
301 | obj_elf_change_section (".sbss", SHT_NOBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0); | |
302 | if (sbss_segment == 0) | |
303 | sbss_segment = subseg_new (".sbss", 0); | |
304 | } | |
305 | #else | |
306 | s_data (ignore); | |
307 | #endif | |
308 | } | |
309 | ||
310 | /* endp_p is always 1 as this func is called only for .end <funcname> | |
311 | This func consumes the <funcname> and calls regular processing | |
312 | s_func(1) with arg 1 (1 for end). */ | |
313 | ||
314 | static void | |
315 | microblaze_s_func (int end_p ATTRIBUTE_UNUSED) | |
316 | { | |
d02603dc NC |
317 | char *name; |
318 | restore_line_pointer (get_symbol_name (&name)); | |
7ba29e2a NC |
319 | s_func (1); |
320 | } | |
321 | ||
322 | /* Handle the .weakext pseudo-op as defined in Kane and Heinrich. */ | |
323 | ||
324 | static void | |
325 | microblaze_s_weakext (int ignore ATTRIBUTE_UNUSED) | |
326 | { | |
327 | char *name; | |
328 | int c; | |
329 | symbolS *symbolP; | |
330 | expressionS exp; | |
331 | ||
d02603dc | 332 | c = get_symbol_name (&name); |
7ba29e2a NC |
333 | symbolP = symbol_find_or_make (name); |
334 | S_SET_WEAK (symbolP); | |
d02603dc | 335 | (void) restore_line_pointer (c); |
7ba29e2a NC |
336 | |
337 | SKIP_WHITESPACE (); | |
338 | ||
339 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
340 | { | |
341 | if (S_IS_DEFINED (symbolP)) | |
342 | { | |
343 | as_bad ("Ignoring attempt to redefine symbol `%s'.", | |
344 | S_GET_NAME (symbolP)); | |
345 | ignore_rest_of_line (); | |
346 | return; | |
347 | } | |
348 | ||
349 | if (*input_line_pointer == ',') | |
350 | { | |
351 | ++input_line_pointer; | |
352 | SKIP_WHITESPACE (); | |
353 | } | |
354 | ||
355 | expression (&exp); | |
356 | if (exp.X_op != O_symbol) | |
357 | { | |
358 | as_bad ("bad .weakext directive"); | |
359 | ignore_rest_of_line (); | |
360 | return; | |
361 | } | |
362 | symbol_set_value_expression (symbolP, &exp); | |
363 | } | |
364 | ||
365 | demand_empty_rest_of_line (); | |
366 | } | |
367 | ||
368 | /* This table describes all the machine specific pseudo-ops the assembler | |
369 | has to support. The fields are: | |
370 | Pseudo-op name without dot | |
371 | Function to call to execute this pseudo-op | |
372 | Integer arg to pass to the function. */ | |
373 | /* If the pseudo-op is not found in this table, it searches in the obj-elf.c, | |
374 | and then in the read.c table. */ | |
375 | const pseudo_typeS md_pseudo_table[] = | |
376 | { | |
377 | {"lcomm", microblaze_s_lcomm, 1}, | |
378 | {"data", microblaze_s_data, 0}, | |
379 | {"data8", cons, 1}, /* Same as byte. */ | |
380 | {"data16", cons, 2}, /* Same as hword. */ | |
381 | {"data32", cons, 4}, /* Same as word. */ | |
382 | {"ent", s_func, 0}, /* Treat ent as function entry point. */ | |
383 | {"end", microblaze_s_func, 1}, /* Treat end as function end point. */ | |
384 | {"gpword", s_rva, 4}, /* gpword label => store resolved label address in data section. */ | |
385 | {"weakext", microblaze_s_weakext, 0}, | |
386 | {"rodata", microblaze_s_rdata, 0}, | |
387 | {"sdata2", microblaze_s_rdata, 1}, | |
388 | {"sdata", microblaze_s_sdata, 0}, | |
389 | {"bss", microblaze_s_bss, 0}, | |
390 | {"sbss", microblaze_s_bss, 1}, | |
391 | {"text", microblaze_s_text, 0}, | |
392 | {"word", cons, 4}, | |
393 | {"frame", s_ignore, 0}, | |
394 | {"mask", s_ignore, 0}, /* Emitted by gcc. */ | |
395 | {NULL, NULL, 0} | |
396 | }; | |
397 | ||
398 | /* This function is called once, at assembler startup time. This should | |
399 | set up all the tables, etc that the MD part of the assembler needs. */ | |
400 | ||
401 | void | |
402 | md_begin (void) | |
403 | { | |
404 | struct op_code_struct * opcode; | |
405 | ||
406 | opcode_hash_control = hash_new (); | |
407 | ||
408 | /* Insert unique names into hash table. */ | |
409 | for (opcode = opcodes; opcode->name; opcode ++) | |
410 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
411 | } | |
412 | ||
413 | /* Try to parse a reg name. */ | |
414 | ||
415 | static char * | |
416 | parse_reg (char * s, unsigned * reg) | |
417 | { | |
418 | unsigned tmpreg = 0; | |
419 | ||
420 | /* Strip leading whitespace. */ | |
e23c5ac0 | 421 | while (ISSPACE (* s)) |
7ba29e2a NC |
422 | ++ s; |
423 | ||
424 | if (strncasecmp (s, "rpc", 3) == 0) | |
425 | { | |
426 | *reg = REG_PC; | |
427 | return s + 3; | |
428 | } | |
429 | else if (strncasecmp (s, "rmsr", 4) == 0) | |
430 | { | |
431 | *reg = REG_MSR; | |
432 | return s + 4; | |
433 | } | |
434 | else if (strncasecmp (s, "rear", 4) == 0) | |
435 | { | |
436 | *reg = REG_EAR; | |
437 | return s + 4; | |
438 | } | |
439 | else if (strncasecmp (s, "resr", 4) == 0) | |
440 | { | |
441 | *reg = REG_ESR; | |
442 | return s + 4; | |
443 | } | |
444 | else if (strncasecmp (s, "rfsr", 4) == 0) | |
445 | { | |
446 | *reg = REG_FSR; | |
447 | return s + 4; | |
448 | } | |
449 | else if (strncasecmp (s, "rbtr", 4) == 0) | |
450 | { | |
451 | *reg = REG_BTR; | |
452 | return s + 4; | |
453 | } | |
454 | else if (strncasecmp (s, "redr", 4) == 0) | |
455 | { | |
456 | *reg = REG_EDR; | |
457 | return s + 4; | |
458 | } | |
459 | /* MMU registers start. */ | |
460 | else if (strncasecmp (s, "rpid", 4) == 0) | |
461 | { | |
462 | *reg = REG_PID; | |
463 | return s + 4; | |
464 | } | |
465 | else if (strncasecmp (s, "rzpr", 4) == 0) | |
466 | { | |
467 | *reg = REG_ZPR; | |
468 | return s + 4; | |
469 | } | |
470 | else if (strncasecmp (s, "rtlbx", 5) == 0) | |
471 | { | |
472 | *reg = REG_TLBX; | |
473 | return s + 5; | |
474 | } | |
475 | else if (strncasecmp (s, "rtlblo", 6) == 0) | |
476 | { | |
477 | *reg = REG_TLBLO; | |
478 | return s + 6; | |
479 | } | |
480 | else if (strncasecmp (s, "rtlbhi", 6) == 0) | |
481 | { | |
482 | *reg = REG_TLBHI; | |
483 | return s + 6; | |
484 | } | |
485 | else if (strncasecmp (s, "rtlbsx", 6) == 0) | |
486 | { | |
487 | *reg = REG_TLBSX; | |
488 | return s + 6; | |
489 | } | |
490 | /* MMU registers end. */ | |
491 | else if (strncasecmp (s, "rpvr", 4) == 0) | |
492 | { | |
e23c5ac0 | 493 | if (ISDIGIT (s[4]) && ISDIGIT (s[5])) |
7ba29e2a NC |
494 | { |
495 | tmpreg = (s[4]-'0')*10 + s[5] - '0'; | |
496 | s += 6; | |
497 | } | |
498 | ||
e23c5ac0 | 499 | else if (ISDIGIT (s[4])) |
7ba29e2a NC |
500 | { |
501 | tmpreg = s[4] - '0'; | |
502 | s += 5; | |
503 | } | |
504 | else | |
505 | as_bad (_("register expected, but saw '%.6s'"), s); | |
506 | if ((int) tmpreg >= MIN_PVR_REGNUM && tmpreg <= MAX_PVR_REGNUM) | |
507 | *reg = REG_PVR + tmpreg; | |
508 | else | |
509 | { | |
510 | as_bad (_("Invalid register number at '%.6s'"), s); | |
511 | *reg = REG_PVR; | |
512 | } | |
513 | return s; | |
514 | } | |
515 | else if (strncasecmp (s, "rsp", 3) == 0) | |
516 | { | |
517 | *reg = REG_SP; | |
518 | return s + 3; | |
519 | } | |
520 | else if (strncasecmp (s, "rfsl", 4) == 0) | |
521 | { | |
e23c5ac0 | 522 | if (ISDIGIT (s[4]) && ISDIGIT (s[5])) |
7ba29e2a NC |
523 | { |
524 | tmpreg = (s[4] - '0') * 10 + s[5] - '0'; | |
525 | s += 6; | |
526 | } | |
e23c5ac0 | 527 | else if (ISDIGIT (s[4])) |
7ba29e2a NC |
528 | { |
529 | tmpreg = s[4] - '0'; | |
530 | s += 5; | |
531 | } | |
532 | else | |
533 | as_bad (_("register expected, but saw '%.6s'"), s); | |
534 | ||
e23c5ac0 | 535 | if ((int) tmpreg >= MIN_REGNUM && tmpreg <= MAX_REGNUM) |
7ba29e2a NC |
536 | *reg = tmpreg; |
537 | else | |
538 | { | |
539 | as_bad (_("Invalid register number at '%.6s'"), s); | |
540 | *reg = 0; | |
541 | } | |
542 | return s; | |
543 | } | |
0db4b326 ME |
544 | /* Stack protection registers. */ |
545 | else if (strncasecmp (s, "rshr", 4) == 0) | |
546 | { | |
547 | *reg = REG_SHR; | |
548 | return s + 4; | |
549 | } | |
550 | else if (strncasecmp (s, "rslr", 4) == 0) | |
551 | { | |
552 | *reg = REG_SLR; | |
553 | return s + 4; | |
554 | } | |
7ba29e2a NC |
555 | else |
556 | { | |
e23c5ac0 | 557 | if (TOLOWER (s[0]) == 'r') |
7ba29e2a | 558 | { |
e23c5ac0 | 559 | if (ISDIGIT (s[1]) && ISDIGIT (s[2])) |
7ba29e2a NC |
560 | { |
561 | tmpreg = (s[1] - '0') * 10 + s[2] - '0'; | |
562 | s += 3; | |
563 | } | |
e23c5ac0 | 564 | else if (ISDIGIT (s[1])) |
7ba29e2a NC |
565 | { |
566 | tmpreg = s[1] - '0'; | |
567 | s += 2; | |
568 | } | |
569 | else | |
570 | as_bad (_("register expected, but saw '%.6s'"), s); | |
571 | ||
572 | if ((int)tmpreg >= MIN_REGNUM && tmpreg <= MAX_REGNUM) | |
573 | *reg = tmpreg; | |
574 | else | |
575 | { | |
576 | as_bad (_("Invalid register number at '%.6s'"), s); | |
577 | *reg = 0; | |
578 | } | |
579 | return s; | |
580 | } | |
581 | } | |
582 | as_bad (_("register expected, but saw '%.6s'"), s); | |
583 | *reg = 0; | |
584 | return s; | |
585 | } | |
586 | ||
587 | static char * | |
588 | parse_exp (char *s, expressionS *e) | |
589 | { | |
590 | char *save; | |
d3ce72d0 | 591 | char *new_pointer; |
7ba29e2a NC |
592 | |
593 | /* Skip whitespace. */ | |
e23c5ac0 | 594 | while (ISSPACE (* s)) |
7ba29e2a NC |
595 | ++ s; |
596 | ||
597 | save = input_line_pointer; | |
598 | input_line_pointer = s; | |
599 | ||
600 | expression (e); | |
601 | ||
602 | if (e->X_op == O_absent) | |
603 | as_fatal (_("missing operand")); | |
604 | ||
d3ce72d0 | 605 | new_pointer = input_line_pointer; |
7ba29e2a NC |
606 | input_line_pointer = save; |
607 | ||
d3ce72d0 | 608 | return new_pointer; |
7ba29e2a NC |
609 | } |
610 | ||
611 | /* Symbol modifiers (@GOT, @PLT, @GOTOFF). */ | |
69b06cc8 | 612 | #define IMM_NONE 0 |
7ba29e2a NC |
613 | #define IMM_GOT 1 |
614 | #define IMM_PLT 2 | |
615 | #define IMM_GOTOFF 3 | |
69b06cc8 ME |
616 | #define IMM_TLSGD 4 |
617 | #define IMM_TLSLD 5 | |
618 | #define IMM_TLSDTPMOD 6 | |
619 | #define IMM_TLSDTPREL 7 | |
620 | #define IMM_TLSTPREL 8 | |
621 | #define IMM_MAX 9 | |
622 | ||
623 | struct imm_type { | |
e0471c16 | 624 | const char *isuffix; /* Suffix String */ |
69b06cc8 ME |
625 | int itype; /* Suffix Type */ |
626 | int otype; /* Offset Type */ | |
627 | }; | |
628 | ||
33eaf5de | 629 | /* These are NOT in ascending order of type, GOTOFF is ahead to make |
69b06cc8 ME |
630 | sure @GOTOFF does not get matched with @GOT */ |
631 | static struct imm_type imm_types[] = { | |
632 | { "NONE", IMM_NONE , 0 }, | |
633 | { "GOTOFF", IMM_GOTOFF , GOTOFF_OFFSET }, | |
634 | { "GOT", IMM_GOT , GOT_OFFSET }, | |
635 | { "PLT", IMM_PLT , PLT_OFFSET }, | |
636 | { "TLSGD", IMM_TLSGD , TLSGD_OFFSET }, | |
637 | { "TLSLDM", IMM_TLSLD, TLSLD_OFFSET }, | |
638 | { "TLSDTPMOD", IMM_TLSDTPMOD, TLSDTPMOD_OFFSET }, | |
639 | { "TLSDTPREL", IMM_TLSDTPREL, TLSDTPREL_OFFSET }, | |
640 | { "TLSTPREL", IMM_TLSTPREL, TLSTPREL_OFFSET } | |
641 | }; | |
642 | ||
643 | static int | |
644 | match_imm (const char *s, int *ilen) | |
645 | { | |
646 | int i; | |
647 | int slen; | |
648 | ||
649 | /* Check for matching suffix */ | |
650 | for (i = 1; i < IMM_MAX; i++) | |
651 | { | |
652 | slen = strlen (imm_types[i].isuffix); | |
653 | ||
654 | if (strncmp (imm_types[i].isuffix, s, slen) == 0) | |
655 | { | |
656 | *ilen = slen; | |
657 | return imm_types[i].itype; | |
658 | } | |
659 | } /* for */ | |
660 | *ilen = 0; | |
661 | return 0; | |
662 | } | |
663 | ||
664 | static int | |
665 | get_imm_otype (int itype) | |
666 | { | |
667 | int i, otype; | |
668 | ||
669 | otype = 0; | |
670 | /* Check for matching itype */ | |
671 | for (i = 1; i < IMM_MAX; i++) | |
672 | { | |
673 | if (imm_types[i].itype == itype) | |
674 | { | |
675 | otype = imm_types[i].otype; | |
676 | break; | |
677 | } | |
678 | } | |
679 | return otype; | |
680 | } | |
7ba29e2a NC |
681 | |
682 | static symbolS * GOT_symbol; | |
683 | ||
684 | #define GOT_SYMBOL_NAME "_GLOBAL_OFFSET_TABLE_" | |
685 | ||
686 | static char * | |
03e08038 | 687 | parse_imm (char * s, expressionS * e, offsetT min, offsetT max) |
7ba29e2a | 688 | { |
d3ce72d0 | 689 | char *new_pointer; |
7ba29e2a | 690 | char *atp; |
69b06cc8 ME |
691 | int itype, ilen; |
692 | ||
693 | ilen = 0; | |
7ba29e2a NC |
694 | |
695 | /* Find the start of "@GOT" or "@PLT" suffix (if any) */ | |
696 | for (atp = s; *atp != '@'; atp++) | |
697 | if (is_end_of_line[(unsigned char) *atp]) | |
698 | break; | |
699 | ||
700 | if (*atp == '@') | |
701 | { | |
69b06cc8 ME |
702 | itype = match_imm (atp + 1, &ilen); |
703 | if (itype != 0) | |
704 | { | |
705 | *atp = 0; | |
706 | e->X_md = itype; | |
707 | } | |
7ba29e2a | 708 | else |
69b06cc8 ME |
709 | { |
710 | atp = NULL; | |
711 | e->X_md = 0; | |
712 | ilen = 0; | |
713 | } | |
7ba29e2a NC |
714 | *atp = 0; |
715 | } | |
716 | else | |
717 | { | |
718 | atp = NULL; | |
719 | e->X_md = 0; | |
720 | } | |
721 | ||
722 | if (atp && !GOT_symbol) | |
723 | { | |
724 | GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); | |
725 | } | |
726 | ||
d3ce72d0 | 727 | new_pointer = parse_exp (s, e); |
7ba29e2a | 728 | |
69b06cc8 ME |
729 | if (!GOT_symbol && ! strncmp (s, GOT_SYMBOL_NAME, 20)) |
730 | { | |
731 | GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); | |
732 | } | |
733 | ||
7ba29e2a NC |
734 | if (e->X_op == O_absent) |
735 | ; /* An error message has already been emitted. */ | |
736 | else if ((e->X_op != O_constant && e->X_op != O_symbol) ) | |
737 | as_fatal (_("operand must be a constant or a label")); | |
f66adc4e | 738 | else if (e->X_op == O_constant) |
7ba29e2a | 739 | { |
ac0d427f | 740 | /* Special case: sign extend negative 32-bit values to offsetT size. */ |
f66adc4e | 741 | if ((e->X_add_number >> 31) == 1) |
ac0d427f | 742 | e->X_add_number |= -((addressT) (1U << 31)); |
f66adc4e NC |
743 | |
744 | if (e->X_add_number < min || e->X_add_number > max) | |
745 | { | |
746 | as_fatal (_("operand must be absolute in range %lx..%lx, not %lx"), | |
747 | (long) min, (long) max, (long) e->X_add_number); | |
748 | } | |
7ba29e2a NC |
749 | } |
750 | ||
751 | if (atp) | |
752 | { | |
753 | *atp = '@'; /* restore back (needed?) */ | |
d3ce72d0 | 754 | if (new_pointer >= atp) |
69b06cc8 | 755 | new_pointer += ilen + 1; /* sizeof (imm_suffix) + 1 for '@' */ |
7ba29e2a | 756 | } |
d3ce72d0 | 757 | return new_pointer; |
7ba29e2a NC |
758 | } |
759 | ||
760 | static char * | |
761 | check_got (int * got_type, int * got_len) | |
762 | { | |
d3ce72d0 | 763 | char *new_pointer; |
7ba29e2a NC |
764 | char *atp; |
765 | char *past_got; | |
766 | int first, second; | |
767 | char *tmpbuf; | |
768 | ||
769 | /* Find the start of "@GOT" or "@PLT" suffix (if any). */ | |
770 | for (atp = input_line_pointer; *atp != '@'; atp++) | |
771 | if (is_end_of_line[(unsigned char) *atp]) | |
772 | return NULL; | |
773 | ||
774 | if (strncmp (atp + 1, "GOTOFF", 5) == 0) | |
775 | { | |
776 | *got_len = 6; | |
777 | *got_type = IMM_GOTOFF; | |
778 | } | |
779 | else if (strncmp (atp + 1, "GOT", 3) == 0) | |
780 | { | |
781 | *got_len = 3; | |
782 | *got_type = IMM_GOT; | |
783 | } | |
784 | else if (strncmp (atp + 1, "PLT", 3) == 0) | |
785 | { | |
786 | *got_len = 3; | |
787 | *got_type = IMM_PLT; | |
788 | } | |
789 | else | |
790 | return NULL; | |
791 | ||
792 | if (!GOT_symbol) | |
793 | GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); | |
794 | ||
795 | first = atp - input_line_pointer; | |
796 | ||
797 | past_got = atp + *got_len + 1; | |
d3ce72d0 | 798 | for (new_pointer = past_got; !is_end_of_line[(unsigned char) *new_pointer++];) |
7ba29e2a | 799 | ; |
d3ce72d0 | 800 | second = new_pointer - past_got; |
325801bd TS |
801 | /* One extra byte for ' ' and one for NUL. */ |
802 | tmpbuf = XNEWVEC (char, first + second + 2); | |
7ba29e2a NC |
803 | memcpy (tmpbuf, input_line_pointer, first); |
804 | tmpbuf[first] = ' '; /* @GOTOFF is replaced with a single space. */ | |
805 | memcpy (tmpbuf + first + 1, past_got, second); | |
806 | tmpbuf[first + second + 1] = '\0'; | |
807 | ||
808 | return tmpbuf; | |
809 | } | |
810 | ||
62ebcb5c | 811 | extern bfd_reloc_code_real_type |
7ba29e2a NC |
812 | parse_cons_expression_microblaze (expressionS *exp, int size) |
813 | { | |
814 | if (size == 4) | |
815 | { | |
816 | /* Handle @GOTOFF et.al. */ | |
817 | char *save, *gotfree_copy; | |
818 | int got_len, got_type; | |
819 | ||
820 | save = input_line_pointer; | |
821 | gotfree_copy = check_got (& got_type, & got_len); | |
822 | if (gotfree_copy) | |
823 | input_line_pointer = gotfree_copy; | |
824 | ||
825 | expression (exp); | |
826 | ||
827 | if (gotfree_copy) | |
828 | { | |
829 | exp->X_md = got_type; | |
830 | input_line_pointer = save + (input_line_pointer - gotfree_copy) | |
831 | + got_len; | |
832 | free (gotfree_copy); | |
833 | } | |
834 | } | |
835 | else | |
836 | expression (exp); | |
62ebcb5c | 837 | return BFD_RELOC_NONE; |
7ba29e2a NC |
838 | } |
839 | ||
840 | /* This is the guts of the machine-dependent assembler. STR points to a | |
841 | machine dependent instruction. This function is supposed to emit | |
842 | the frags/bytes it assembles to. */ | |
843 | ||
e742e119 TS |
844 | static const char * str_microblaze_ro_anchor = "RO"; |
845 | static const char * str_microblaze_rw_anchor = "RW"; | |
7ba29e2a NC |
846 | |
847 | static bfd_boolean | |
848 | check_spl_reg (unsigned * reg) | |
849 | { | |
850 | if ((*reg == REG_MSR) || (*reg == REG_PC) | |
851 | || (*reg == REG_EAR) || (*reg == REG_ESR) | |
852 | || (*reg == REG_FSR) || (*reg == REG_BTR) || (*reg == REG_EDR) | |
853 | || (*reg == REG_PID) || (*reg == REG_ZPR) | |
854 | || (*reg == REG_TLBX) || (*reg == REG_TLBLO) | |
855 | || (*reg == REG_TLBHI) || (*reg == REG_TLBSX) | |
0db4b326 | 856 | || (*reg == REG_SHR) || (*reg == REG_SLR) |
7ba29e2a NC |
857 | || (*reg >= REG_PVR+MIN_PVR_REGNUM && *reg <= REG_PVR+MAX_PVR_REGNUM)) |
858 | return TRUE; | |
859 | ||
860 | return FALSE; | |
861 | } | |
862 | ||
863 | /* Here we decide which fixups can be adjusted to make them relative to | |
864 | the beginning of the section instead of the symbol. Basically we need | |
865 | to make sure that the dynamic relocations are done correctly, so in | |
866 | some cases we force the original symbol to be used. */ | |
867 | ||
868 | int | |
869 | tc_microblaze_fix_adjustable (struct fix *fixP) | |
870 | { | |
871 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol) | |
872 | return 0; | |
873 | ||
874 | if (fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF | |
875 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF | |
876 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT | |
69b06cc8 ME |
877 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT |
878 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSGD | |
879 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSLD | |
880 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_TLSDTPMOD | |
881 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_TLSDTPREL | |
882 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSDTPREL | |
883 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL | |
884 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSTPREL) | |
7ba29e2a NC |
885 | return 0; |
886 | ||
887 | return 1; | |
888 | } | |
889 | ||
890 | void | |
891 | md_assemble (char * str) | |
892 | { | |
893 | char * op_start; | |
894 | char * op_end; | |
895 | struct op_code_struct * opcode, *opcode1; | |
896 | char * output = NULL; | |
897 | int nlen = 0; | |
898 | int i; | |
899 | unsigned long inst, inst1; | |
900 | unsigned reg1; | |
901 | unsigned reg2; | |
902 | unsigned reg3; | |
903 | unsigned isize; | |
c7d6f518 | 904 | unsigned int immed, temp; |
7ba29e2a NC |
905 | expressionS exp; |
906 | char name[20]; | |
907 | ||
908 | /* Drop leading whitespace. */ | |
e23c5ac0 | 909 | while (ISSPACE (* str)) |
7ba29e2a NC |
910 | str ++; |
911 | ||
912 | /* Find the op code end. */ | |
913 | for (op_start = op_end = str; | |
4ad7ac30 | 914 | *op_end && !is_end_of_line[(unsigned char) *op_end] && *op_end != ' '; |
7ba29e2a NC |
915 | op_end++) |
916 | { | |
917 | name[nlen] = op_start[nlen]; | |
918 | nlen++; | |
4ad7ac30 AM |
919 | if (nlen == sizeof (name) - 1) |
920 | break; | |
7ba29e2a NC |
921 | } |
922 | ||
923 | name [nlen] = 0; | |
924 | ||
925 | if (nlen == 0) | |
926 | { | |
927 | as_bad (_("can't find opcode ")); | |
928 | return; | |
929 | } | |
930 | ||
931 | opcode = (struct op_code_struct *) hash_find (opcode_hash_control, name); | |
932 | if (opcode == NULL) | |
933 | { | |
934 | as_bad (_("unknown opcode \"%s\""), name); | |
935 | return; | |
936 | } | |
937 | ||
938 | inst = opcode->bit_sequence; | |
939 | isize = 4; | |
940 | ||
941 | switch (opcode->inst_type) | |
942 | { | |
943 | case INST_TYPE_RD_R1_R2: | |
944 | if (strcmp (op_end, "")) | |
945 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
946 | else | |
947 | { | |
948 | as_fatal (_("Error in statement syntax")); | |
949 | reg1 = 0; | |
950 | } | |
951 | if (strcmp (op_end, "")) | |
952 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
953 | else | |
954 | { | |
955 | as_fatal (_("Error in statement syntax")); | |
956 | reg2 = 0; | |
957 | } | |
958 | if (strcmp (op_end, "")) | |
959 | op_end = parse_reg (op_end + 1, ®3); /* Get r2. */ | |
960 | else | |
961 | { | |
962 | as_fatal (_("Error in statement syntax")); | |
963 | reg3 = 0; | |
964 | } | |
965 | ||
966 | /* Check for spl registers. */ | |
967 | if (check_spl_reg (& reg1)) | |
968 | as_fatal (_("Cannot use special register with this instruction")); | |
969 | if (check_spl_reg (& reg2)) | |
970 | as_fatal (_("Cannot use special register with this instruction")); | |
971 | if (check_spl_reg (& reg3)) | |
972 | as_fatal (_("Cannot use special register with this instruction")); | |
973 | ||
974 | if (streq (name, "sub")) | |
975 | { | |
976 | /* sub rd, r1, r2 becomes rsub rd, r2, r1. */ | |
977 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
978 | inst |= (reg3 << RA_LOW) & RA_MASK; | |
979 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
980 | } | |
981 | else | |
982 | { | |
983 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
984 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
985 | inst |= (reg3 << RB_LOW) & RB_MASK; | |
986 | } | |
987 | output = frag_more (isize); | |
988 | break; | |
989 | ||
990 | case INST_TYPE_RD_R1_IMM: | |
991 | if (strcmp (op_end, "")) | |
992 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
993 | else | |
994 | { | |
995 | as_fatal (_("Error in statement syntax")); | |
996 | reg1 = 0; | |
997 | } | |
998 | if (strcmp (op_end, "")) | |
999 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1000 | else | |
1001 | { | |
1002 | as_fatal (_("Error in statement syntax")); | |
1003 | reg2 = 0; | |
1004 | } | |
1005 | if (strcmp (op_end, "")) | |
1006 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1007 | else | |
1008 | as_fatal (_("Error in statement syntax")); | |
1009 | ||
1010 | /* Check for spl registers. */ | |
1011 | if (check_spl_reg (& reg1)) | |
1012 | as_fatal (_("Cannot use special register with this instruction")); | |
1013 | if (check_spl_reg (& reg2)) | |
1014 | as_fatal (_("Cannot use special register with this instruction")); | |
1015 | ||
1016 | if (exp.X_op != O_constant) | |
1017 | { | |
e742e119 | 1018 | const char *opc; |
7ba29e2a NC |
1019 | relax_substateT subtype; |
1020 | ||
1021 | if (streq (name, "lmi")) | |
1022 | as_fatal (_("lmi pseudo instruction should not use a label in imm field")); | |
1023 | else if (streq (name, "smi")) | |
1024 | as_fatal (_("smi pseudo instruction should not use a label in imm field")); | |
1025 | ||
1026 | if (reg2 == REG_ROSDP) | |
1027 | opc = str_microblaze_ro_anchor; | |
1028 | else if (reg2 == REG_RWSDP) | |
1029 | opc = str_microblaze_rw_anchor; | |
1030 | else | |
1031 | opc = NULL; | |
69b06cc8 ME |
1032 | if (exp.X_md != 0) |
1033 | subtype = get_imm_otype(exp.X_md); | |
7ba29e2a NC |
1034 | else |
1035 | subtype = opcode->inst_offset_type; | |
1036 | ||
1037 | output = frag_var (rs_machine_dependent, | |
1038 | isize * 2, /* maxm of 2 words. */ | |
1039 | isize, /* minm of 1 word. */ | |
1040 | subtype, /* PC-relative or not. */ | |
1041 | exp.X_add_symbol, | |
1042 | exp.X_add_number, | |
e742e119 | 1043 | (char *) opc); |
c7d6f518 | 1044 | immed = 0; |
7ba29e2a NC |
1045 | } |
1046 | else | |
1047 | { | |
1048 | output = frag_more (isize); | |
c7d6f518 | 1049 | immed = exp.X_add_number; |
7ba29e2a NC |
1050 | } |
1051 | ||
1052 | if (streq (name, "lmi") || streq (name, "smi")) | |
1053 | { | |
1054 | /* Load/store 32-d consecutive registers. Used on exit/entry | |
1055 | to subroutines to save and restore registers to stack. | |
1056 | Generate 32-d insts. */ | |
1057 | int count; | |
1058 | ||
1059 | count = 32 - reg1; | |
1060 | if (streq (name, "lmi")) | |
1061 | opcode = (struct op_code_struct *) hash_find (opcode_hash_control, "lwi"); | |
1062 | else | |
1063 | opcode = (struct op_code_struct *) hash_find (opcode_hash_control, "swi"); | |
1064 | if (opcode == NULL) | |
1065 | { | |
1066 | as_bad (_("unknown opcode \"%s\""), "lwi"); | |
1067 | return; | |
1068 | } | |
1069 | inst = opcode->bit_sequence; | |
1070 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1071 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1072 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1073 | |
1074 | for (i = 0; i < count - 1; i++) | |
1075 | { | |
1076 | output[0] = INST_BYTE0 (inst); | |
1077 | output[1] = INST_BYTE1 (inst); | |
1078 | output[2] = INST_BYTE2 (inst); | |
1079 | output[3] = INST_BYTE3 (inst); | |
1080 | output = frag_more (isize); | |
c7d6f518 | 1081 | immed = immed + 4; |
7ba29e2a NC |
1082 | reg1++; |
1083 | inst = opcode->bit_sequence; | |
1084 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1085 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1086 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1087 | } |
1088 | } | |
1089 | else | |
1090 | { | |
c7d6f518 | 1091 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1092 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1093 | { | |
1094 | /* Needs an immediate inst. */ | |
1095 | opcode1 = (struct op_code_struct *) hash_find (opcode_hash_control, "imm"); | |
1096 | if (opcode1 == NULL) | |
1097 | { | |
1098 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1099 | return; | |
1100 | } | |
1101 | ||
1102 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1103 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1104 | output[0] = INST_BYTE0 (inst1); |
1105 | output[1] = INST_BYTE1 (inst1); | |
1106 | output[2] = INST_BYTE2 (inst1); | |
1107 | output[3] = INST_BYTE3 (inst1); | |
1108 | output = frag_more (isize); | |
1109 | } | |
1110 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1111 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1112 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1113 | } |
1114 | break; | |
1115 | ||
1116 | case INST_TYPE_RD_R1_IMM5: | |
1117 | if (strcmp (op_end, "")) | |
1118 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1119 | else | |
1120 | { | |
1121 | as_fatal (_("Error in statement syntax")); | |
1122 | reg1 = 0; | |
1123 | } | |
1124 | if (strcmp (op_end, "")) | |
1125 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1126 | else | |
1127 | { | |
1128 | as_fatal (_("Error in statement syntax")); | |
1129 | reg2 = 0; | |
1130 | } | |
1131 | if (strcmp (op_end, "")) | |
1132 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1133 | else | |
1134 | as_fatal (_("Error in statement syntax")); | |
1135 | ||
1136 | /* Check for spl registers. */ | |
1137 | if (check_spl_reg (®1)) | |
1138 | as_fatal (_("Cannot use special register with this instruction")); | |
1139 | if (check_spl_reg (®2)) | |
1140 | as_fatal (_("Cannot use special register with this instruction")); | |
1141 | ||
1142 | if (exp.X_op != O_constant) | |
1143 | as_warn (_("Symbol used as immediate for shift instruction")); | |
1144 | else | |
1145 | { | |
1146 | output = frag_more (isize); | |
c7d6f518 | 1147 | immed = exp.X_add_number; |
7ba29e2a NC |
1148 | } |
1149 | ||
c7d6f518 | 1150 | if (immed != (immed % 32)) |
7ba29e2a NC |
1151 | { |
1152 | as_warn (_("Shift value > 32. using <value %% 32>")); | |
c7d6f518 | 1153 | immed = immed % 32; |
7ba29e2a NC |
1154 | } |
1155 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1156 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1157 | inst |= (immed << IMM_LOW) & IMM5_MASK; |
7ba29e2a NC |
1158 | break; |
1159 | ||
1160 | case INST_TYPE_R1_R2: | |
1161 | if (strcmp (op_end, "")) | |
1162 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1163 | else | |
1164 | { | |
1165 | as_fatal (_("Error in statement syntax")); | |
1166 | reg1 = 0; | |
1167 | } | |
1168 | if (strcmp (op_end, "")) | |
1169 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ | |
1170 | else | |
1171 | { | |
1172 | as_fatal (_("Error in statement syntax")); | |
1173 | reg2 = 0; | |
1174 | } | |
1175 | ||
1176 | /* Check for spl registers. */ | |
1177 | if (check_spl_reg (& reg1)) | |
1178 | as_fatal (_("Cannot use special register with this instruction")); | |
1179 | if (check_spl_reg (& reg2)) | |
1180 | as_fatal (_("Cannot use special register with this instruction")); | |
1181 | ||
1182 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
1183 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1184 | output = frag_more (isize); | |
1185 | break; | |
1186 | ||
1187 | case INST_TYPE_RD_R1: | |
1188 | if (strcmp (op_end, "")) | |
1189 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1190 | else | |
1191 | { | |
1192 | as_fatal (_("Error in statement syntax")); | |
1193 | reg1 = 0; | |
1194 | } | |
1195 | if (strcmp (op_end, "")) | |
1196 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1197 | else | |
1198 | { | |
1199 | as_fatal (_("Error in statement syntax")); | |
1200 | reg2 =0; | |
1201 | } | |
1202 | ||
1203 | /* Check for spl registers. */ | |
1204 | if (check_spl_reg (®1)) | |
1205 | as_fatal (_("Cannot use special register with this instruction")); | |
1206 | if (check_spl_reg (®2)) | |
1207 | as_fatal (_("Cannot use special register with this instruction")); | |
1208 | ||
1209 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1210 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
1211 | output = frag_more (isize); | |
1212 | break; | |
1213 | ||
1214 | case INST_TYPE_RD_RFSL: | |
1215 | if (strcmp (op_end, "")) | |
1216 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1217 | else | |
1218 | { | |
1219 | as_fatal (_("Error in statement syntax")); | |
1220 | reg1 = 0; | |
1221 | } | |
1222 | if (strcmp (op_end, "")) | |
c7d6f518 | 1223 | op_end = parse_reg (op_end + 1, &immed); /* Get rfslN. */ |
7ba29e2a NC |
1224 | else |
1225 | { | |
1226 | as_fatal (_("Error in statement syntax")); | |
c7d6f518 | 1227 | immed = 0; |
7ba29e2a NC |
1228 | } |
1229 | ||
1230 | /* Check for spl registers. */ | |
1231 | if (check_spl_reg (®1)) | |
1232 | as_fatal (_("Cannot use special register with this instruction")); | |
1233 | ||
1234 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1235 | inst |= (immed << IMM_LOW) & RFSL_MASK; |
7ba29e2a NC |
1236 | output = frag_more (isize); |
1237 | break; | |
1238 | ||
1239 | case INST_TYPE_RD_IMM15: | |
1240 | if (strcmp (op_end, "")) | |
1241 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1242 | else | |
1243 | { | |
1244 | as_fatal (_("Error in statement syntax")); | |
1245 | reg1 = 0; | |
1246 | } | |
1247 | ||
1248 | if (strcmp (op_end, "")) | |
1249 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM15, MAX_IMM15); | |
1250 | else | |
1251 | as_fatal (_("Error in statement syntax")); | |
1252 | ||
1253 | /* Check for spl registers. */ | |
1254 | if (check_spl_reg (®1)) | |
1255 | as_fatal (_("Cannot use special register with this instruction")); | |
1256 | ||
1257 | if (exp.X_op != O_constant) | |
1258 | as_fatal (_("Symbol used as immediate value for msrset/msrclr instructions")); | |
1259 | else | |
1260 | { | |
1261 | output = frag_more (isize); | |
c7d6f518 | 1262 | immed = exp.X_add_number; |
7ba29e2a NC |
1263 | } |
1264 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1265 | inst |= (immed << IMM_LOW) & IMM15_MASK; |
7ba29e2a NC |
1266 | break; |
1267 | ||
1268 | case INST_TYPE_R1_RFSL: | |
1269 | if (strcmp (op_end, "")) | |
1270 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1271 | else | |
1272 | { | |
1273 | as_fatal (_("Error in statement syntax")); | |
1274 | reg1 = 0; | |
1275 | } | |
1276 | if (strcmp (op_end, "")) | |
c7d6f518 | 1277 | op_end = parse_reg (op_end + 1, &immed); /* Get rfslN. */ |
7ba29e2a NC |
1278 | else |
1279 | { | |
1280 | as_fatal (_("Error in statement syntax")); | |
c7d6f518 | 1281 | immed = 0; |
7ba29e2a NC |
1282 | } |
1283 | ||
1284 | /* Check for spl registers. */ | |
1285 | if (check_spl_reg (®1)) | |
1286 | as_fatal (_("Cannot use special register with this instruction")); | |
1287 | ||
1288 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1289 | inst |= (immed << IMM_LOW) & RFSL_MASK; |
7ba29e2a NC |
1290 | output = frag_more (isize); |
1291 | break; | |
1292 | ||
1293 | case INST_TYPE_RFSL: | |
1294 | if (strcmp (op_end, "")) | |
c7d6f518 | 1295 | op_end = parse_reg (op_end + 1, &immed); /* Get rfslN. */ |
7ba29e2a NC |
1296 | else |
1297 | { | |
1298 | as_fatal (_("Error in statement syntax")); | |
c7d6f518 | 1299 | immed = 0; |
7ba29e2a | 1300 | } |
c7d6f518 | 1301 | inst |= (immed << IMM_LOW) & RFSL_MASK; |
7ba29e2a NC |
1302 | output = frag_more (isize); |
1303 | break; | |
1304 | ||
1305 | case INST_TYPE_R1: | |
1306 | if (strcmp (op_end, "")) | |
1307 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1308 | else | |
1309 | { | |
1310 | as_fatal (_("Error in statement syntax")); | |
1311 | reg1 = 0; | |
1312 | } | |
1313 | ||
1314 | /* Check for spl registers. */ | |
1315 | if (check_spl_reg (®1)) | |
1316 | as_fatal (_("Cannot use special register with this instruction")); | |
1317 | ||
1318 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
1319 | output = frag_more (isize); | |
1320 | break; | |
1321 | ||
1322 | /* For tuqula insn...:) */ | |
1323 | case INST_TYPE_RD: | |
1324 | if (strcmp (op_end, "")) | |
1325 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1326 | else | |
1327 | { | |
1328 | as_fatal (_("Error in statement syntax")); | |
1329 | reg1 = 0; | |
1330 | } | |
1331 | ||
1332 | /* Check for spl registers. */ | |
1333 | if (check_spl_reg (®1)) | |
1334 | as_fatal (_("Cannot use special register with this instruction")); | |
1335 | ||
1336 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1337 | output = frag_more (isize); | |
1338 | break; | |
1339 | ||
1340 | case INST_TYPE_RD_SPECIAL: | |
1341 | if (strcmp (op_end, "")) | |
1342 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1343 | else | |
1344 | { | |
1345 | as_fatal (_("Error in statement syntax")); | |
1346 | reg1 = 0; | |
1347 | } | |
1348 | if (strcmp (op_end, "")) | |
1349 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1350 | else | |
1351 | { | |
1352 | as_fatal (_("Error in statement syntax")); | |
1353 | reg2 = 0; | |
1354 | } | |
1355 | ||
1356 | if (reg2 == REG_MSR) | |
c7d6f518 | 1357 | immed = opcode->immval_mask | REG_MSR_MASK; |
7ba29e2a | 1358 | else if (reg2 == REG_PC) |
c7d6f518 | 1359 | immed = opcode->immval_mask | REG_PC_MASK; |
7ba29e2a | 1360 | else if (reg2 == REG_EAR) |
c7d6f518 | 1361 | immed = opcode->immval_mask | REG_EAR_MASK; |
7ba29e2a | 1362 | else if (reg2 == REG_ESR) |
c7d6f518 | 1363 | immed = opcode->immval_mask | REG_ESR_MASK; |
7ba29e2a | 1364 | else if (reg2 == REG_FSR) |
c7d6f518 | 1365 | immed = opcode->immval_mask | REG_FSR_MASK; |
7ba29e2a | 1366 | else if (reg2 == REG_BTR) |
c7d6f518 | 1367 | immed = opcode->immval_mask | REG_BTR_MASK; |
7ba29e2a | 1368 | else if (reg2 == REG_EDR) |
c7d6f518 | 1369 | immed = opcode->immval_mask | REG_EDR_MASK; |
7ba29e2a | 1370 | else if (reg2 == REG_PID) |
c7d6f518 | 1371 | immed = opcode->immval_mask | REG_PID_MASK; |
7ba29e2a | 1372 | else if (reg2 == REG_ZPR) |
c7d6f518 | 1373 | immed = opcode->immval_mask | REG_ZPR_MASK; |
7ba29e2a | 1374 | else if (reg2 == REG_TLBX) |
c7d6f518 | 1375 | immed = opcode->immval_mask | REG_TLBX_MASK; |
7ba29e2a | 1376 | else if (reg2 == REG_TLBLO) |
c7d6f518 | 1377 | immed = opcode->immval_mask | REG_TLBLO_MASK; |
7ba29e2a | 1378 | else if (reg2 == REG_TLBHI) |
c7d6f518 | 1379 | immed = opcode->immval_mask | REG_TLBHI_MASK; |
0db4b326 ME |
1380 | else if (reg2 == REG_SHR) |
1381 | immed = opcode->immval_mask | REG_SHR_MASK; | |
1382 | else if (reg2 == REG_SLR) | |
1383 | immed = opcode->immval_mask | REG_SLR_MASK; | |
7ba29e2a | 1384 | else if (reg2 >= (REG_PVR+MIN_PVR_REGNUM) && reg2 <= (REG_PVR+MAX_PVR_REGNUM)) |
c7d6f518 | 1385 | immed = opcode->immval_mask | REG_PVR_MASK | reg2; |
7ba29e2a NC |
1386 | else |
1387 | as_fatal (_("invalid value for special purpose register")); | |
1388 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1389 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1390 | output = frag_more (isize); |
1391 | break; | |
1392 | ||
1393 | case INST_TYPE_SPECIAL_R1: | |
1394 | if (strcmp (op_end, "")) | |
1395 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1396 | else | |
1397 | { | |
1398 | as_fatal (_("Error in statement syntax")); | |
1399 | reg1 = 0; | |
1400 | } | |
1401 | if (strcmp (op_end, "")) | |
1402 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1403 | else | |
1404 | { | |
1405 | as_fatal (_("Error in statement syntax")); | |
1406 | reg2 = 0; | |
1407 | } | |
1408 | ||
1409 | if (reg1 == REG_MSR) | |
c7d6f518 | 1410 | immed = opcode->immval_mask | REG_MSR_MASK; |
7ba29e2a | 1411 | else if (reg1 == REG_PC) |
c7d6f518 | 1412 | immed = opcode->immval_mask | REG_PC_MASK; |
7ba29e2a | 1413 | else if (reg1 == REG_EAR) |
c7d6f518 | 1414 | immed = opcode->immval_mask | REG_EAR_MASK; |
7ba29e2a | 1415 | else if (reg1 == REG_ESR) |
c7d6f518 | 1416 | immed = opcode->immval_mask | REG_ESR_MASK; |
7ba29e2a | 1417 | else if (reg1 == REG_FSR) |
c7d6f518 | 1418 | immed = opcode->immval_mask | REG_FSR_MASK; |
7ba29e2a | 1419 | else if (reg1 == REG_BTR) |
c7d6f518 | 1420 | immed = opcode->immval_mask | REG_BTR_MASK; |
7ba29e2a | 1421 | else if (reg1 == REG_EDR) |
c7d6f518 | 1422 | immed = opcode->immval_mask | REG_EDR_MASK; |
7ba29e2a | 1423 | else if (reg1 == REG_PID) |
c7d6f518 | 1424 | immed = opcode->immval_mask | REG_PID_MASK; |
7ba29e2a | 1425 | else if (reg1 == REG_ZPR) |
c7d6f518 | 1426 | immed = opcode->immval_mask | REG_ZPR_MASK; |
7ba29e2a | 1427 | else if (reg1 == REG_TLBX) |
c7d6f518 | 1428 | immed = opcode->immval_mask | REG_TLBX_MASK; |
7ba29e2a | 1429 | else if (reg1 == REG_TLBLO) |
c7d6f518 | 1430 | immed = opcode->immval_mask | REG_TLBLO_MASK; |
7ba29e2a | 1431 | else if (reg1 == REG_TLBHI) |
c7d6f518 | 1432 | immed = opcode->immval_mask | REG_TLBHI_MASK; |
7ba29e2a | 1433 | else if (reg1 == REG_TLBSX) |
c7d6f518 | 1434 | immed = opcode->immval_mask | REG_TLBSX_MASK; |
0db4b326 ME |
1435 | else if (reg1 == REG_SHR) |
1436 | immed = opcode->immval_mask | REG_SHR_MASK; | |
1437 | else if (reg1 == REG_SLR) | |
1438 | immed = opcode->immval_mask | REG_SLR_MASK; | |
7ba29e2a NC |
1439 | else |
1440 | as_fatal (_("invalid value for special purpose register")); | |
1441 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1442 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1443 | output = frag_more (isize); |
1444 | break; | |
1445 | ||
94dda8b7 | 1446 | case INST_TYPE_R1_R2_SPECIAL: |
7ba29e2a | 1447 | if (strcmp (op_end, "")) |
94dda8b7 | 1448 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ |
7ba29e2a NC |
1449 | else |
1450 | { | |
1451 | as_fatal (_("Error in statement syntax")); | |
1452 | reg1 = 0; | |
1453 | } | |
1454 | if (strcmp (op_end, "")) | |
94dda8b7 | 1455 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ |
7ba29e2a NC |
1456 | else |
1457 | { | |
1458 | as_fatal (_("Error in statement syntax")); | |
1459 | reg2 =0; | |
1460 | } | |
1461 | ||
1462 | /* Check for spl registers. */ | |
1463 | if (check_spl_reg (®1)) | |
1464 | as_fatal (_("Cannot use special register with this instruction")); | |
1465 | if (check_spl_reg (®2)) | |
1466 | as_fatal (_("Cannot use special register with this instruction")); | |
1467 | ||
1468 | /* insn wic ra, rb => wic ra, ra, rb. */ | |
7ba29e2a NC |
1469 | inst |= (reg1 << RA_LOW) & RA_MASK; |
1470 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1471 | ||
1472 | output = frag_more (isize); | |
1473 | break; | |
1474 | ||
1475 | case INST_TYPE_RD_R2: | |
1476 | if (strcmp (op_end, "")) | |
1477 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1478 | else | |
1479 | { | |
1480 | as_fatal (_("Error in statement syntax")); | |
1481 | reg1 = 0; | |
1482 | } | |
1483 | if (strcmp (op_end, "")) | |
1484 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ | |
1485 | else | |
1486 | { | |
1487 | as_fatal (_("Error in statement syntax")); | |
1488 | reg2 = 0; | |
1489 | } | |
1490 | ||
1491 | /* Check for spl registers. */ | |
1492 | if (check_spl_reg (®1)) | |
1493 | as_fatal (_("Cannot use special register with this instruction")); | |
1494 | if (check_spl_reg (®2)) | |
1495 | as_fatal (_("Cannot use special register with this instruction")); | |
1496 | ||
1497 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1498 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1499 | output = frag_more (isize); | |
1500 | break; | |
1501 | ||
1502 | case INST_TYPE_R1_IMM: | |
1503 | if (strcmp (op_end, "")) | |
1504 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1505 | else | |
1506 | { | |
1507 | as_fatal (_("Error in statement syntax")); | |
1508 | reg1 = 0; | |
1509 | } | |
1510 | if (strcmp (op_end, "")) | |
1511 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1512 | else | |
1513 | as_fatal (_("Error in statement syntax")); | |
1514 | ||
1515 | /* Check for spl registers. */ | |
1516 | if (check_spl_reg (®1)) | |
1517 | as_fatal (_("Cannot use special register with this instruction")); | |
1518 | ||
1519 | if (exp.X_op != O_constant) | |
1520 | { | |
1521 | char *opc = NULL; | |
1522 | relax_substateT subtype; | |
1523 | ||
69b06cc8 ME |
1524 | if (exp.X_md != 0) |
1525 | subtype = get_imm_otype(exp.X_md); | |
7ba29e2a NC |
1526 | else |
1527 | subtype = opcode->inst_offset_type; | |
69b06cc8 | 1528 | |
7ba29e2a NC |
1529 | output = frag_var (rs_machine_dependent, |
1530 | isize * 2, /* maxm of 2 words. */ | |
1531 | isize, /* minm of 1 word. */ | |
1532 | subtype, /* PC-relative or not. */ | |
1533 | exp.X_add_symbol, | |
1534 | exp.X_add_number, | |
1535 | opc); | |
c7d6f518 | 1536 | immed = 0; |
7ba29e2a NC |
1537 | } |
1538 | else | |
1539 | { | |
1540 | output = frag_more (isize); | |
c7d6f518 | 1541 | immed = exp.X_add_number; |
7ba29e2a NC |
1542 | } |
1543 | ||
c7d6f518 | 1544 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1545 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1546 | { | |
1547 | /* Needs an immediate inst. */ | |
1548 | opcode1 = (struct op_code_struct *) hash_find (opcode_hash_control, "imm"); | |
1549 | if (opcode1 == NULL) | |
1550 | { | |
1551 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1552 | return; | |
1553 | } | |
1554 | ||
1555 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1556 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1557 | output[0] = INST_BYTE0 (inst1); |
1558 | output[1] = INST_BYTE1 (inst1); | |
1559 | output[2] = INST_BYTE2 (inst1); | |
1560 | output[3] = INST_BYTE3 (inst1); | |
1561 | output = frag_more (isize); | |
1562 | } | |
1563 | ||
1564 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1565 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1566 | break; |
1567 | ||
1568 | case INST_TYPE_RD_IMM: | |
1569 | if (strcmp (op_end, "")) | |
1570 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1571 | else | |
1572 | { | |
1573 | as_fatal (_("Error in statement syntax")); | |
1574 | reg1 = 0; | |
1575 | } | |
1576 | if (strcmp (op_end, "")) | |
1577 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1578 | else | |
1579 | as_fatal (_("Error in statement syntax")); | |
1580 | ||
1581 | /* Check for spl registers. */ | |
1582 | if (check_spl_reg (®1)) | |
1583 | as_fatal (_("Cannot use special register with this instruction")); | |
1584 | ||
1585 | if (exp.X_op != O_constant) | |
1586 | { | |
1587 | char *opc = NULL; | |
1588 | relax_substateT subtype; | |
1589 | ||
69b06cc8 ME |
1590 | if (exp.X_md != 0) |
1591 | subtype = get_imm_otype(exp.X_md); | |
1592 | else | |
7ba29e2a | 1593 | subtype = opcode->inst_offset_type; |
69b06cc8 | 1594 | |
7ba29e2a NC |
1595 | output = frag_var (rs_machine_dependent, |
1596 | isize * 2, /* maxm of 2 words. */ | |
1597 | isize, /* minm of 1 word. */ | |
1598 | subtype, /* PC-relative or not. */ | |
1599 | exp.X_add_symbol, | |
1600 | exp.X_add_number, | |
1601 | opc); | |
c7d6f518 | 1602 | immed = 0; |
7ba29e2a NC |
1603 | } |
1604 | else | |
1605 | { | |
1606 | output = frag_more (isize); | |
c7d6f518 | 1607 | immed = exp.X_add_number; |
7ba29e2a NC |
1608 | } |
1609 | ||
c7d6f518 | 1610 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1611 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1612 | { | |
1613 | /* Needs an immediate inst. */ | |
1614 | opcode1 = (struct op_code_struct *) hash_find (opcode_hash_control, "imm"); | |
1615 | if (opcode1 == NULL) | |
1616 | { | |
1617 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1618 | return; | |
1619 | } | |
1620 | ||
1621 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1622 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1623 | output[0] = INST_BYTE0 (inst1); |
1624 | output[1] = INST_BYTE1 (inst1); | |
1625 | output[2] = INST_BYTE2 (inst1); | |
1626 | output[3] = INST_BYTE3 (inst1); | |
1627 | output = frag_more (isize); | |
1628 | } | |
1629 | ||
1630 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1631 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1632 | break; |
1633 | ||
1634 | case INST_TYPE_R2: | |
1635 | if (strcmp (op_end, "")) | |
1636 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ | |
1637 | else | |
1638 | { | |
1639 | as_fatal (_("Error in statement syntax")); | |
1640 | reg2 = 0; | |
1641 | } | |
1642 | ||
1643 | /* Check for spl registers. */ | |
1644 | if (check_spl_reg (®2)) | |
1645 | as_fatal (_("Cannot use special register with this instruction")); | |
1646 | ||
1647 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1648 | output = frag_more (isize); | |
1649 | break; | |
1650 | ||
1651 | case INST_TYPE_IMM: | |
1652 | if (streq (name, "imm")) | |
1653 | as_fatal (_("An IMM instruction should not be present in the .s file")); | |
1654 | ||
1655 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1656 | ||
1657 | if (exp.X_op != O_constant) | |
1658 | { | |
1659 | char *opc = NULL; | |
1660 | relax_substateT subtype; | |
1661 | ||
69b06cc8 ME |
1662 | if (exp.X_md != 0) |
1663 | subtype = get_imm_otype(exp.X_md); | |
1664 | else | |
1665 | subtype = opcode->inst_offset_type; | |
1666 | ||
7ba29e2a NC |
1667 | output = frag_var (rs_machine_dependent, |
1668 | isize * 2, /* maxm of 2 words. */ | |
1669 | isize, /* minm of 1 word. */ | |
1670 | subtype, /* PC-relative or not. */ | |
1671 | exp.X_add_symbol, | |
1672 | exp.X_add_number, | |
1673 | opc); | |
c7d6f518 | 1674 | immed = 0; |
7ba29e2a NC |
1675 | } |
1676 | else | |
1677 | { | |
1678 | output = frag_more (isize); | |
c7d6f518 | 1679 | immed = exp.X_add_number; |
7ba29e2a NC |
1680 | } |
1681 | ||
1682 | ||
c7d6f518 | 1683 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1684 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1685 | { | |
1686 | /* Needs an immediate inst. */ | |
1687 | opcode1 = (struct op_code_struct *) hash_find (opcode_hash_control, "imm"); | |
1688 | if (opcode1 == NULL) | |
1689 | { | |
1690 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1691 | return; | |
1692 | } | |
1693 | ||
1694 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1695 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1696 | output[0] = INST_BYTE0 (inst1); |
1697 | output[1] = INST_BYTE1 (inst1); | |
1698 | output[2] = INST_BYTE2 (inst1); | |
1699 | output[3] = INST_BYTE3 (inst1); | |
1700 | output = frag_more (isize); | |
1701 | } | |
c7d6f518 | 1702 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1703 | break; |
1704 | ||
1705 | case INST_TYPE_NONE: | |
1706 | output = frag_more (isize); | |
1707 | break; | |
1708 | ||
d3da7741 ME |
1709 | case INST_TYPE_IMM5: |
1710 | if (strcmp(op_end, "")) | |
1711 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM5, MAX_IMM5); | |
1712 | else | |
1713 | as_fatal(_("Error in statement syntax")); | |
1714 | if (exp.X_op != O_constant) { | |
1715 | as_warn(_("Symbol used as immediate for mbar instruction")); | |
1716 | } else { | |
1717 | output = frag_more (isize); | |
1718 | immed = exp.X_add_number; | |
1719 | } | |
1720 | if (immed != (immed % 32)) { | |
1721 | as_warn(_("Immediate value for mbar > 32. using <value %% 32>")); | |
1722 | immed = immed % 32; | |
1723 | } | |
1724 | inst |= (immed << IMM_MBAR); | |
1725 | break; | |
1726 | ||
7ba29e2a NC |
1727 | default: |
1728 | as_fatal (_("unimplemented opcode \"%s\""), name); | |
1729 | } | |
1730 | ||
1731 | /* Drop whitespace after all the operands have been parsed. */ | |
e23c5ac0 | 1732 | while (ISSPACE (* op_end)) |
7ba29e2a NC |
1733 | op_end ++; |
1734 | ||
1735 | /* Give warning message if the insn has more operands than required. */ | |
1736 | if (strcmp (op_end, opcode->name) && strcmp (op_end, "")) | |
1737 | as_warn (_("ignoring operands: %s "), op_end); | |
1738 | ||
1739 | output[0] = INST_BYTE0 (inst); | |
1740 | output[1] = INST_BYTE1 (inst); | |
1741 | output[2] = INST_BYTE2 (inst); | |
1742 | output[3] = INST_BYTE3 (inst); | |
1743 | ||
1744 | #ifdef OBJ_ELF | |
1745 | dwarf2_emit_insn (4); | |
1746 | #endif | |
1747 | } | |
1748 | ||
1749 | symbolS * | |
1750 | md_undefined_symbol (char * name ATTRIBUTE_UNUSED) | |
1751 | { | |
1752 | return NULL; | |
1753 | } | |
1754 | ||
1755 | /* Various routines to kill one day. */ | |
1756 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
1757 | #define MAX_LITTLENUMS 6 | |
1758 | ||
1759 | /* Turn a string in input_line_pointer into a floating point constant of type | |
1760 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
1761 | emitted is stored in *sizeP. An error message is returned, or NULL on OK.*/ | |
6d4af3c2 | 1762 | const char * |
7ba29e2a NC |
1763 | md_atof (int type, char * litP, int * sizeP) |
1764 | { | |
1765 | int prec; | |
1766 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1767 | int i; | |
1768 | char * t; | |
1769 | ||
1770 | switch (type) | |
1771 | { | |
1772 | case 'f': | |
1773 | case 'F': | |
1774 | case 's': | |
1775 | case 'S': | |
1776 | prec = 2; | |
1777 | break; | |
1778 | ||
1779 | case 'd': | |
1780 | case 'D': | |
1781 | case 'r': | |
1782 | case 'R': | |
1783 | prec = 4; | |
1784 | break; | |
1785 | ||
1786 | case 'x': | |
1787 | case 'X': | |
1788 | prec = 6; | |
1789 | break; | |
1790 | ||
1791 | case 'p': | |
1792 | case 'P': | |
1793 | prec = 6; | |
1794 | break; | |
1795 | ||
1796 | default: | |
1797 | *sizeP = 0; | |
1798 | return _("Bad call to MD_NTOF()"); | |
1799 | } | |
1800 | ||
1801 | t = atof_ieee (input_line_pointer, type, words); | |
1802 | ||
1803 | if (t) | |
1804 | input_line_pointer = t; | |
1805 | ||
1806 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1807 | ||
1808 | if (! target_big_endian) | |
1809 | { | |
1810 | for (i = prec - 1; i >= 0; i--) | |
1811 | { | |
1812 | md_number_to_chars (litP, (valueT) words[i], | |
1813 | sizeof (LITTLENUM_TYPE)); | |
1814 | litP += sizeof (LITTLENUM_TYPE); | |
1815 | } | |
1816 | } | |
1817 | else | |
1818 | for (i = 0; i < prec; i++) | |
1819 | { | |
1820 | md_number_to_chars (litP, (valueT) words[i], | |
1821 | sizeof (LITTLENUM_TYPE)); | |
1822 | litP += sizeof (LITTLENUM_TYPE); | |
1823 | } | |
1824 | ||
1825 | return NULL; | |
1826 | } | |
1827 | \f | |
1828 | const char * md_shortopts = ""; | |
1829 | ||
1830 | struct option md_longopts[] = | |
1831 | { | |
f23200ad ME |
1832 | {"EB", no_argument, NULL, OPTION_EB}, |
1833 | {"EL", no_argument, NULL, OPTION_EL}, | |
7ba29e2a NC |
1834 | { NULL, no_argument, NULL, 0} |
1835 | }; | |
1836 | ||
1837 | size_t md_longopts_size = sizeof (md_longopts); | |
1838 | ||
1839 | int md_short_jump_size; | |
1840 | ||
1841 | void | |
1842 | md_create_short_jump (char * ptr ATTRIBUTE_UNUSED, | |
1843 | addressT from_Nddr ATTRIBUTE_UNUSED, | |
1844 | addressT to_Nddr ATTRIBUTE_UNUSED, | |
1845 | fragS * frag ATTRIBUTE_UNUSED, | |
1846 | symbolS * to_symbol ATTRIBUTE_UNUSED) | |
1847 | { | |
1848 | as_fatal (_("failed sanity check: short_jump")); | |
1849 | } | |
1850 | ||
1851 | void | |
1852 | md_create_long_jump (char * ptr ATTRIBUTE_UNUSED, | |
1853 | addressT from_Nddr ATTRIBUTE_UNUSED, | |
1854 | addressT to_Nddr ATTRIBUTE_UNUSED, | |
1855 | fragS * frag ATTRIBUTE_UNUSED, | |
1856 | symbolS * to_symbol ATTRIBUTE_UNUSED) | |
1857 | { | |
1858 | as_fatal (_("failed sanity check: long_jump")); | |
1859 | } | |
1860 | ||
1861 | /* Called after relaxing, change the frags so they know how big they are. */ | |
1862 | ||
1863 | void | |
1864 | md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, | |
1865 | segT sec ATTRIBUTE_UNUSED, | |
1866 | fragS * fragP) | |
1867 | { | |
1868 | fixS *fixP; | |
1869 | ||
1870 | switch (fragP->fr_subtype) | |
1871 | { | |
1872 | case UNDEFINED_PC_OFFSET: | |
1873 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1874 | fragP->fr_offset, TRUE, BFD_RELOC_64_PCREL); | |
1875 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1876 | fragP->fr_var = 0; | |
1877 | break; | |
1878 | case DEFINED_ABS_SEGMENT: | |
1879 | if (fragP->fr_symbol == GOT_symbol) | |
1880 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1881 | fragP->fr_offset, TRUE, BFD_RELOC_MICROBLAZE_64_GOTPC); | |
1882 | else | |
1883 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1884 | fragP->fr_offset, FALSE, BFD_RELOC_64); | |
1885 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1886 | fragP->fr_var = 0; | |
1887 | break; | |
1888 | case DEFINED_RO_SEGMENT: | |
1889 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE, fragP->fr_symbol, | |
1890 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_32_ROSDA); | |
1891 | fragP->fr_fix += INST_WORD_SIZE; | |
1892 | fragP->fr_var = 0; | |
1893 | break; | |
1894 | case DEFINED_RW_SEGMENT: | |
1895 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE, fragP->fr_symbol, | |
1896 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_32_RWSDA); | |
1897 | fragP->fr_fix += INST_WORD_SIZE; | |
1898 | fragP->fr_var = 0; | |
1899 | break; | |
1900 | case DEFINED_PC_OFFSET: | |
1901 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE, fragP->fr_symbol, | |
1902 | fragP->fr_offset, TRUE, BFD_RELOC_MICROBLAZE_32_LO_PCREL); | |
1903 | fragP->fr_fix += INST_WORD_SIZE; | |
1904 | fragP->fr_var = 0; | |
1905 | break; | |
1906 | case LARGE_DEFINED_PC_OFFSET: | |
1907 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1908 | fragP->fr_offset, TRUE, BFD_RELOC_64_PCREL); | |
1909 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1910 | fragP->fr_var = 0; | |
1911 | break; | |
1912 | case GOT_OFFSET: | |
1913 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1914 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_GOT); | |
1915 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1916 | fragP->fr_var = 0; | |
1917 | break; | |
1918 | case PLT_OFFSET: | |
1919 | fixP = fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1920 | fragP->fr_offset, TRUE, BFD_RELOC_MICROBLAZE_64_PLT); | |
1921 | /* fixP->fx_plt = 1; */ | |
87975d2a | 1922 | (void) fixP; |
7ba29e2a NC |
1923 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1924 | fragP->fr_var = 0; | |
1925 | break; | |
1926 | case GOTOFF_OFFSET: | |
1927 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1928 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_GOTOFF); | |
1929 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1930 | fragP->fr_var = 0; | |
1931 | break; | |
69b06cc8 ME |
1932 | case TLSGD_OFFSET: |
1933 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1934 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_TLSGD); | |
1935 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1936 | fragP->fr_var = 0; | |
1937 | break; | |
1938 | case TLSLD_OFFSET: | |
1939 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1940 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_TLSLD); | |
1941 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1942 | fragP->fr_var = 0; | |
1943 | break; | |
1944 | case TLSDTPREL_OFFSET: | |
1945 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
1946 | fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_TLSDTPREL); | |
1947 | fragP->fr_fix += INST_WORD_SIZE * 2; | |
1948 | fragP->fr_var = 0; | |
1949 | break; | |
7ba29e2a NC |
1950 | |
1951 | default: | |
1952 | abort (); | |
1953 | } | |
1954 | } | |
1955 | ||
1956 | /* Applies the desired value to the specified location. | |
1957 | Also sets up addends for 'rela' type relocations. */ | |
1958 | void | |
1959 | md_apply_fix (fixS * fixP, | |
1960 | valueT * valp, | |
1961 | segT segment) | |
1962 | { | |
1963 | char * buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
3b4dbbbf | 1964 | const char * file = fixP->fx_file ? fixP->fx_file : _("unknown"); |
7ba29e2a NC |
1965 | const char * symname; |
1966 | /* Note: use offsetT because it is signed, valueT is unsigned. */ | |
1967 | offsetT val = (offsetT) * valp; | |
1968 | int i; | |
1969 | struct op_code_struct * opcode1; | |
1970 | unsigned long inst1; | |
1971 | ||
1972 | symname = fixP->fx_addsy ? S_GET_NAME (fixP->fx_addsy) : _("<unknown>"); | |
1973 | ||
1974 | /* fixP->fx_offset is supposed to be set up correctly for all | |
1975 | symbol relocations. */ | |
1976 | if (fixP->fx_addsy == NULL) | |
1977 | { | |
1978 | if (!fixP->fx_pcrel) | |
1979 | fixP->fx_offset = val; /* Absolute relocation. */ | |
1980 | else | |
1981 | fprintf (stderr, "NULL symbol PC-relative relocation? offset = %08x, val = %08x\n", | |
1982 | (unsigned int) fixP->fx_offset, (unsigned int) val); | |
1983 | } | |
1984 | ||
1985 | /* If we aren't adjusting this fixup to be against the section | |
1986 | symbol, we need to adjust the value. */ | |
1987 | if (fixP->fx_addsy != NULL) | |
1988 | { | |
1989 | if (S_IS_WEAK (fixP->fx_addsy) | |
1990 | || (symbol_used_in_reloc_p (fixP->fx_addsy) | |
1991 | && (((bfd_get_section_flags (stdoutput, | |
1992 | S_GET_SEGMENT (fixP->fx_addsy)) | |
1993 | & SEC_LINK_ONCE) != 0) | |
1994 | || !strncmp (segment_name (S_GET_SEGMENT (fixP->fx_addsy)), | |
1995 | ".gnu.linkonce", | |
1996 | sizeof (".gnu.linkonce") - 1)))) | |
1997 | { | |
1998 | val -= S_GET_VALUE (fixP->fx_addsy); | |
1999 | if (val != 0 && ! fixP->fx_pcrel) | |
2000 | { | |
2001 | /* In this case, the bfd_install_relocation routine will | |
2002 | incorrectly add the symbol value back in. We just want | |
2003 | the addend to appear in the object file. | |
2004 | FIXME: If this makes VALUE zero, we're toast. */ | |
2005 | val -= S_GET_VALUE (fixP->fx_addsy); | |
2006 | } | |
2007 | } | |
2008 | } | |
2009 | ||
2010 | /* If the fix is relative to a symbol which is not defined, or not | |
2011 | in the same segment as the fix, we cannot resolve it here. */ | |
2012 | /* fixP->fx_addsy is NULL if valp contains the entire relocation. */ | |
2013 | if (fixP->fx_addsy != NULL | |
2014 | && (!S_IS_DEFINED (fixP->fx_addsy) | |
2015 | || (S_GET_SEGMENT (fixP->fx_addsy) != segment))) | |
2016 | { | |
2017 | fixP->fx_done = 0; | |
2018 | #ifdef OBJ_ELF | |
2019 | /* For ELF we can just return and let the reloc that will be generated | |
2020 | take care of everything. For COFF we still have to insert 'val' | |
2021 | into the insn since the addend field will be ignored. */ | |
2022 | /* return; */ | |
2023 | #endif | |
2024 | } | |
2025 | /* All fixups in the text section must be handled in the linker. */ | |
2026 | else if (segment->flags & SEC_CODE) | |
2027 | fixP->fx_done = 0; | |
2028 | else if (!fixP->fx_pcrel && fixP->fx_addsy != NULL) | |
2029 | fixP->fx_done = 0; | |
2030 | else | |
2031 | fixP->fx_done = 1; | |
2032 | ||
2033 | switch (fixP->fx_r_type) | |
2034 | { | |
2035 | case BFD_RELOC_MICROBLAZE_32_LO: | |
2036 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
2037 | if (target_big_endian) | |
2038 | { | |
2039 | buf[2] |= ((val >> 8) & 0xff); | |
2040 | buf[3] |= (val & 0xff); | |
2041 | } | |
2042 | else | |
2043 | { | |
2044 | buf[1] |= ((val >> 8) & 0xff); | |
2045 | buf[0] |= (val & 0xff); | |
2046 | } | |
2047 | break; | |
2048 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
2049 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
2050 | /* Don't do anything if the symbol is not defined. */ | |
2051 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2052 | { | |
2053 | if (((val & 0xFFFF8000) != 0) && ((val & 0xFFFF8000) != 0xFFFF8000)) | |
2054 | as_bad_where (file, fixP->fx_line, | |
2055 | _("pcrel for branch to %s too far (0x%x)"), | |
2056 | symname, (int) val); | |
2057 | if (target_big_endian) | |
2058 | { | |
2059 | buf[2] |= ((val >> 8) & 0xff); | |
2060 | buf[3] |= (val & 0xff); | |
2061 | } | |
2062 | else | |
2063 | { | |
2064 | buf[1] |= ((val >> 8) & 0xff); | |
2065 | buf[0] |= (val & 0xff); | |
2066 | } | |
2067 | } | |
2068 | break; | |
2069 | case BFD_RELOC_32: | |
2070 | case BFD_RELOC_RVA: | |
2071 | case BFD_RELOC_32_PCREL: | |
2072 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
2073 | /* Don't do anything if the symbol is not defined. */ | |
2074 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2075 | { | |
2076 | if (target_big_endian) | |
2077 | { | |
2078 | buf[0] |= ((val >> 24) & 0xff); | |
2079 | buf[1] |= ((val >> 16) & 0xff); | |
2080 | buf[2] |= ((val >> 8) & 0xff); | |
2081 | buf[3] |= (val & 0xff); | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | buf[3] |= ((val >> 24) & 0xff); | |
2086 | buf[2] |= ((val >> 16) & 0xff); | |
2087 | buf[1] |= ((val >> 8) & 0xff); | |
2088 | buf[0] |= (val & 0xff); | |
2089 | } | |
2090 | } | |
2091 | break; | |
2092 | case BFD_RELOC_64_PCREL: | |
2093 | case BFD_RELOC_64: | |
2094 | /* Add an imm instruction. First save the current instruction. */ | |
2095 | for (i = 0; i < INST_WORD_SIZE; i++) | |
2096 | buf[i + INST_WORD_SIZE] = buf[i]; | |
2097 | ||
2098 | /* Generate the imm instruction. */ | |
2099 | opcode1 = (struct op_code_struct *) hash_find (opcode_hash_control, "imm"); | |
2100 | if (opcode1 == NULL) | |
2101 | { | |
2102 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
2103 | return; | |
2104 | } | |
2105 | ||
2106 | inst1 = opcode1->bit_sequence; | |
2107 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2108 | inst1 |= ((val & 0xFFFF0000) >> 16) & IMM_MASK; | |
2109 | ||
2110 | buf[0] = INST_BYTE0 (inst1); | |
2111 | buf[1] = INST_BYTE1 (inst1); | |
2112 | buf[2] = INST_BYTE2 (inst1); | |
2113 | buf[3] = INST_BYTE3 (inst1); | |
2114 | ||
2115 | /* Add the value only if the symbol is defined. */ | |
2116 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2117 | { | |
2118 | if (target_big_endian) | |
2119 | { | |
2120 | buf[6] |= ((val >> 8) & 0xff); | |
2121 | buf[7] |= (val & 0xff); | |
2122 | } | |
2123 | else | |
2124 | { | |
2125 | buf[5] |= ((val >> 8) & 0xff); | |
2126 | buf[4] |= (val & 0xff); | |
2127 | } | |
2128 | } | |
2129 | break; | |
2130 | ||
69b06cc8 ME |
2131 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: |
2132 | case BFD_RELOC_MICROBLAZE_64_TLSGD: | |
2133 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
2134 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1a0670f3 | 2135 | /* Fall through. */ |
69b06cc8 | 2136 | |
7ba29e2a NC |
2137 | case BFD_RELOC_MICROBLAZE_64_GOTPC: |
2138 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
2139 | case BFD_RELOC_MICROBLAZE_64_PLT: | |
2140 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
2141 | /* Add an imm instruction. First save the current instruction. */ | |
2142 | for (i = 0; i < INST_WORD_SIZE; i++) | |
2143 | buf[i + INST_WORD_SIZE] = buf[i]; | |
2144 | ||
2145 | /* Generate the imm instruction. */ | |
2146 | opcode1 = (struct op_code_struct *) hash_find (opcode_hash_control, "imm"); | |
2147 | if (opcode1 == NULL) | |
2148 | { | |
2149 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
2150 | return; | |
2151 | } | |
2152 | ||
2153 | inst1 = opcode1->bit_sequence; | |
2154 | ||
2155 | /* We can fixup call to a defined non-global address | |
2156 | within the same section only. */ | |
2157 | buf[0] = INST_BYTE0 (inst1); | |
2158 | buf[1] = INST_BYTE1 (inst1); | |
2159 | buf[2] = INST_BYTE2 (inst1); | |
2160 | buf[3] = INST_BYTE3 (inst1); | |
2161 | return; | |
2162 | ||
2163 | default: | |
2164 | break; | |
2165 | } | |
2166 | ||
2167 | if (fixP->fx_addsy == NULL) | |
2168 | { | |
2169 | /* This fixup has been resolved. Create a reloc in case the linker | |
2170 | moves code around due to relaxing. */ | |
2171 | if (fixP->fx_r_type == BFD_RELOC_64_PCREL) | |
2172 | fixP->fx_r_type = BFD_RELOC_MICROBLAZE_64_NONE; | |
2173 | else | |
2174 | fixP->fx_r_type = BFD_RELOC_NONE; | |
2175 | fixP->fx_addsy = section_symbol (absolute_section); | |
2176 | } | |
2177 | return; | |
2178 | } | |
2179 | ||
2180 | void | |
2181 | md_operand (expressionS * expressionP) | |
2182 | { | |
2183 | /* Ignore leading hash symbol, if present. */ | |
2184 | if (*input_line_pointer == '#') | |
2185 | { | |
2186 | input_line_pointer ++; | |
2187 | expression (expressionP); | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | /* Called just before address relaxation, return the length | |
2192 | by which a fragment must grow to reach it's destination. */ | |
2193 | ||
2194 | int | |
2195 | md_estimate_size_before_relax (fragS * fragP, | |
2196 | segT segment_type) | |
2197 | { | |
2198 | sbss_segment = bfd_get_section_by_name (stdoutput, ".sbss"); | |
2199 | sbss2_segment = bfd_get_section_by_name (stdoutput, ".sbss2"); | |
2200 | sdata_segment = bfd_get_section_by_name (stdoutput, ".sdata"); | |
2201 | sdata2_segment = bfd_get_section_by_name (stdoutput, ".sdata2"); | |
2202 | ||
2203 | switch (fragP->fr_subtype) | |
2204 | { | |
2205 | case INST_PC_OFFSET: | |
2206 | /* Used to be a PC-relative branch. */ | |
2207 | if (!fragP->fr_symbol) | |
2208 | { | |
2209 | /* We know the abs value: Should never happen. */ | |
2210 | as_bad (_("Absolute PC-relative value in relaxation code. Assembler error.....")); | |
2211 | abort (); | |
2212 | } | |
28ad2e2d ME |
2213 | else if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type && |
2214 | !S_IS_WEAK (fragP->fr_symbol)) | |
7ba29e2a NC |
2215 | { |
2216 | fragP->fr_subtype = DEFINED_PC_OFFSET; | |
2217 | /* Don't know now whether we need an imm instruction. */ | |
2218 | fragP->fr_var = INST_WORD_SIZE; | |
2219 | } | |
2220 | else if (S_IS_DEFINED (fragP->fr_symbol) | |
2221 | && (((S_GET_SEGMENT (fragP->fr_symbol))->flags & SEC_CODE) == 0)) | |
2222 | { | |
2223 | /* Cannot have a PC-relative branch to a diff segment. */ | |
2224 | as_bad (_("PC relative branch to label %s which is not in the instruction space"), | |
2225 | S_GET_NAME (fragP->fr_symbol)); | |
2226 | fragP->fr_subtype = UNDEFINED_PC_OFFSET; | |
2227 | fragP->fr_var = INST_WORD_SIZE*2; | |
2228 | } | |
2229 | else | |
2230 | { | |
2231 | fragP->fr_subtype = UNDEFINED_PC_OFFSET; | |
2232 | fragP->fr_var = INST_WORD_SIZE*2; | |
2233 | } | |
2234 | break; | |
2235 | ||
2236 | case INST_NO_OFFSET: | |
2237 | /* Used to be a reference to somewhere which was unknown. */ | |
2238 | if (fragP->fr_symbol) | |
2239 | { | |
2240 | if (fragP->fr_opcode == NULL) | |
2241 | { | |
2242 | /* Used as an absolute value. */ | |
2243 | fragP->fr_subtype = DEFINED_ABS_SEGMENT; | |
2244 | /* Variable part does not change. */ | |
2245 | fragP->fr_var = INST_WORD_SIZE*2; | |
2246 | } | |
2247 | else if (streq (fragP->fr_opcode, str_microblaze_ro_anchor)) | |
2248 | { | |
2249 | /* It is accessed using the small data read only anchor. */ | |
45dfa85a | 2250 | if ((S_GET_SEGMENT (fragP->fr_symbol) == bfd_com_section_ptr) |
7ba29e2a NC |
2251 | || (S_GET_SEGMENT (fragP->fr_symbol) == sdata2_segment) |
2252 | || (S_GET_SEGMENT (fragP->fr_symbol) == sbss2_segment) | |
2253 | || (! S_IS_DEFINED (fragP->fr_symbol))) | |
2254 | { | |
2255 | fragP->fr_subtype = DEFINED_RO_SEGMENT; | |
2256 | fragP->fr_var = INST_WORD_SIZE; | |
2257 | } | |
2258 | else | |
2259 | { | |
2260 | /* Variable not in small data read only segment accessed | |
2261 | using small data read only anchor. */ | |
3b4dbbbf | 2262 | const char *file = fragP->fr_file ? fragP->fr_file : _("unknown"); |
7ba29e2a NC |
2263 | |
2264 | as_bad_where (file, fragP->fr_line, | |
2265 | _("Variable is accessed using small data read " | |
2266 | "only anchor, but it is not in the small data " | |
2267 | "read only section")); | |
2268 | fragP->fr_subtype = DEFINED_RO_SEGMENT; | |
2269 | fragP->fr_var = INST_WORD_SIZE; | |
2270 | } | |
2271 | } | |
2272 | else if (streq (fragP->fr_opcode, str_microblaze_rw_anchor)) | |
2273 | { | |
45dfa85a | 2274 | if ((S_GET_SEGMENT (fragP->fr_symbol) == bfd_com_section_ptr) |
7ba29e2a NC |
2275 | || (S_GET_SEGMENT (fragP->fr_symbol) == sdata_segment) |
2276 | || (S_GET_SEGMENT (fragP->fr_symbol) == sbss_segment) | |
2277 | || (!S_IS_DEFINED (fragP->fr_symbol))) | |
2278 | { | |
2279 | /* It is accessed using the small data read write anchor. */ | |
2280 | fragP->fr_subtype = DEFINED_RW_SEGMENT; | |
2281 | fragP->fr_var = INST_WORD_SIZE; | |
2282 | } | |
2283 | else | |
2284 | { | |
3b4dbbbf | 2285 | const char *file = fragP->fr_file ? fragP->fr_file : _("unknown"); |
7ba29e2a NC |
2286 | |
2287 | as_bad_where (file, fragP->fr_line, | |
2288 | _("Variable is accessed using small data read " | |
2289 | "write anchor, but it is not in the small data " | |
2290 | "read write section")); | |
2291 | fragP->fr_subtype = DEFINED_RW_SEGMENT; | |
2292 | fragP->fr_var = INST_WORD_SIZE; | |
2293 | } | |
2294 | } | |
2295 | else | |
2296 | { | |
2297 | as_bad (_("Incorrect fr_opcode value in frag. Internal error.....")); | |
2298 | abort (); | |
2299 | } | |
2300 | } | |
2301 | else | |
2302 | { | |
2303 | /* We know the abs value: Should never happen. */ | |
2304 | as_bad (_("Absolute value in relaxation code. Assembler error.....")); | |
2305 | abort (); | |
2306 | } | |
2307 | break; | |
2308 | ||
2309 | case UNDEFINED_PC_OFFSET: | |
2310 | case LARGE_DEFINED_PC_OFFSET: | |
2311 | case DEFINED_ABS_SEGMENT: | |
2312 | case GOT_OFFSET: | |
2313 | case PLT_OFFSET: | |
2314 | case GOTOFF_OFFSET: | |
69b06cc8 ME |
2315 | case TLSGD_OFFSET: |
2316 | case TLSLD_OFFSET: | |
2317 | case TLSTPREL_OFFSET: | |
2318 | case TLSDTPREL_OFFSET: | |
7ba29e2a NC |
2319 | fragP->fr_var = INST_WORD_SIZE*2; |
2320 | break; | |
2321 | case DEFINED_RO_SEGMENT: | |
2322 | case DEFINED_RW_SEGMENT: | |
2323 | case DEFINED_PC_OFFSET: | |
69b06cc8 | 2324 | case TLSDTPMOD_OFFSET: |
7ba29e2a NC |
2325 | fragP->fr_var = INST_WORD_SIZE; |
2326 | break; | |
2327 | default: | |
2328 | abort (); | |
2329 | } | |
2330 | ||
2331 | return fragP->fr_var; | |
2332 | } | |
2333 | ||
2334 | /* Put number into target byte order. */ | |
2335 | ||
2336 | void | |
2337 | md_number_to_chars (char * ptr, valueT use, int nbytes) | |
2338 | { | |
2339 | if (target_big_endian) | |
2340 | number_to_chars_bigendian (ptr, use, nbytes); | |
2341 | else | |
2342 | number_to_chars_littleendian (ptr, use, nbytes); | |
2343 | } | |
2344 | ||
2345 | /* Round up a section size to the appropriate boundary. */ | |
2346 | ||
2347 | valueT | |
2348 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) | |
2349 | { | |
2350 | return size; /* Byte alignment is fine. */ | |
2351 | } | |
2352 | ||
2353 | ||
2354 | /* The location from which a PC relative jump should be calculated, | |
2355 | given a PC relative reloc. */ | |
2356 | ||
2357 | long | |
2358 | md_pcrel_from_section (fixS * fixp, segT sec ATTRIBUTE_UNUSED) | |
2359 | { | |
2360 | #ifdef OBJ_ELF | |
2361 | /* If the symbol is undefined or defined in another section | |
2362 | we leave the add number alone for the linker to fix it later. | |
2363 | Only account for the PC pre-bump (No PC-pre-bump on the Microblaze). */ | |
2364 | ||
2365 | if (fixp->fx_addsy != (symbolS *) NULL | |
2366 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
2367 | || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) | |
2368 | return 0; | |
2369 | else | |
2370 | { | |
2371 | /* The case where we are going to resolve things... */ | |
2372 | if (fixp->fx_r_type == BFD_RELOC_64_PCREL) | |
2373 | return fixp->fx_where + fixp->fx_frag->fr_address + INST_WORD_SIZE; | |
2374 | else | |
2375 | return fixp->fx_where + fixp->fx_frag->fr_address; | |
2376 | } | |
2377 | #endif | |
2378 | } | |
2379 | ||
2380 | ||
2381 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) | |
2382 | #define MAP(SZ,PCREL,TYPE) case F (SZ, PCREL): code = (TYPE); break | |
2383 | ||
2384 | arelent * | |
2385 | tc_gen_reloc (asection * section ATTRIBUTE_UNUSED, fixS * fixp) | |
2386 | { | |
2387 | arelent * rel; | |
2388 | bfd_reloc_code_real_type code; | |
2389 | ||
2390 | switch (fixp->fx_r_type) | |
2391 | { | |
2392 | case BFD_RELOC_NONE: | |
2393 | case BFD_RELOC_MICROBLAZE_64_NONE: | |
2394 | case BFD_RELOC_32: | |
2395 | case BFD_RELOC_MICROBLAZE_32_LO: | |
2396 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
2397 | case BFD_RELOC_RVA: | |
2398 | case BFD_RELOC_64: | |
2399 | case BFD_RELOC_64_PCREL: | |
2400 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
2401 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
2402 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
2403 | case BFD_RELOC_MICROBLAZE_64_GOTPC: | |
2404 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
2405 | case BFD_RELOC_MICROBLAZE_64_PLT: | |
2406 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
2407 | case BFD_RELOC_MICROBLAZE_32_GOTOFF: | |
69b06cc8 ME |
2408 | case BFD_RELOC_MICROBLAZE_64_TLSGD: |
2409 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
2410 | case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: | |
2411 | case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: | |
2412 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: | |
2413 | case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: | |
2414 | case BFD_RELOC_MICROBLAZE_64_TLSTPREL: | |
7ba29e2a NC |
2415 | code = fixp->fx_r_type; |
2416 | break; | |
2417 | ||
2418 | default: | |
2419 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
2420 | { | |
2421 | MAP (1, 0, BFD_RELOC_8); | |
2422 | MAP (2, 0, BFD_RELOC_16); | |
2423 | MAP (4, 0, BFD_RELOC_32); | |
2424 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
2425 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
2426 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
2427 | default: | |
2428 | code = fixp->fx_r_type; | |
2429 | as_bad (_("Can not do %d byte %srelocation"), | |
2430 | fixp->fx_size, | |
33eaf5de | 2431 | fixp->fx_pcrel ? _("pc-relative ") : ""); |
7ba29e2a NC |
2432 | } |
2433 | break; | |
2434 | } | |
2435 | ||
add39d23 TS |
2436 | rel = XNEW (arelent); |
2437 | rel->sym_ptr_ptr = XNEW (asymbol *); | |
7ba29e2a NC |
2438 | |
2439 | if (code == BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM) | |
2440 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy); | |
2441 | else | |
2442 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2443 | ||
2444 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2445 | /* Always pass the addend along! */ | |
2446 | rel->addend = fixp->fx_offset; | |
2447 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2448 | ||
2449 | if (rel->howto == NULL) | |
2450 | { | |
2451 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
2452 | _("Cannot represent relocation type %s"), | |
2453 | bfd_get_reloc_code_name (code)); | |
2454 | ||
2455 | /* Set howto to a garbage value so that we can keep going. */ | |
2456 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
2457 | gas_assert (rel->howto != NULL); | |
2458 | } | |
2459 | return rel; | |
2460 | } | |
2461 | ||
2462 | int | |
17b9d67d | 2463 | md_parse_option (int c, const char * arg ATTRIBUTE_UNUSED) |
7ba29e2a NC |
2464 | { |
2465 | switch (c) | |
2466 | { | |
f23200ad ME |
2467 | case OPTION_EB: |
2468 | target_big_endian = 1; | |
2469 | break; | |
2470 | case OPTION_EL: | |
2471 | target_big_endian = 0; | |
2472 | break; | |
7ba29e2a NC |
2473 | default: |
2474 | return 0; | |
2475 | } | |
2476 | return 1; | |
2477 | } | |
2478 | ||
2479 | void | |
2480 | md_show_usage (FILE * stream ATTRIBUTE_UNUSED) | |
2481 | { | |
2482 | /* fprintf(stream, _("\ | |
2483 | MicroBlaze options:\n\ | |
2484 | -noSmall Data in the comm and data sections do not go into the small data section\n")); */ | |
2485 | } | |
2486 | ||
2487 | ||
2488 | /* Create a fixup for a cons expression. If parse_cons_expression_microblaze | |
2489 | found a machine specific op in an expression, | |
2490 | then we create relocs accordingly. */ | |
2491 | ||
2492 | void | |
2493 | cons_fix_new_microblaze (fragS * frag, | |
2494 | int where, | |
2495 | int size, | |
62ebcb5c AM |
2496 | expressionS *exp, |
2497 | bfd_reloc_code_real_type r) | |
7ba29e2a | 2498 | { |
7ba29e2a NC |
2499 | if ((exp->X_op == O_subtract) && (exp->X_add_symbol) && |
2500 | (exp->X_op_symbol) && (now_seg != absolute_section) && (size == 4) | |
2501 | && (!S_IS_LOCAL (exp->X_op_symbol))) | |
2502 | r = BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM; | |
2503 | else if (exp->X_md == IMM_GOTOFF && exp->X_op == O_symbol_rva) | |
2504 | { | |
2505 | exp->X_op = O_symbol; | |
2506 | r = BFD_RELOC_MICROBLAZE_32_GOTOFF; | |
2507 | } | |
2508 | else | |
2509 | { | |
2510 | switch (size) | |
2511 | { | |
2512 | case 1: | |
2513 | r = BFD_RELOC_8; | |
2514 | break; | |
2515 | case 2: | |
2516 | r = BFD_RELOC_16; | |
2517 | break; | |
2518 | case 4: | |
2519 | r = BFD_RELOC_32; | |
2520 | break; | |
2521 | case 8: | |
2522 | r = BFD_RELOC_64; | |
2523 | break; | |
2524 | default: | |
2525 | as_bad (_("unsupported BFD relocation size %u"), size); | |
2526 | r = BFD_RELOC_32; | |
2527 | break; | |
2528 | } | |
2529 | } | |
2530 | fix_new_exp (frag, where, size, exp, 0, r); | |
2531 | } |