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Commit | Line | Data |
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7ba29e2a NC |
1 | /* tc-microblaze.c -- Assemble code for Xilinx MicroBlaze |
2 | ||
a2c58332 | 3 | Copyright (C) 2009-2022 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 | 41 | void microblaze_generate_symbol (char *sym); |
5b7c81bd | 42 | static bool check_spl_reg (unsigned *); |
7ba29e2a NC |
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 | |
3f0a5f17 ME |
90 | #define TEXT_OFFSET 17 |
91 | #define TEXT_PC_OFFSET 18 | |
7ba29e2a NC |
92 | |
93 | /* Initialize the relax table. */ | |
94 | const relax_typeS md_relax_table[] = | |
95 | { | |
96 | { 1, 1, 0, 0 }, /* 0: Unused. */ | |
97 | { 1, 1, 0, 0 }, /* 1: Unused. */ | |
98 | { 1, 1, 0, 0 }, /* 2: Unused. */ | |
99 | { 1, 1, 0, 0 }, /* 3: Unused. */ | |
100 | { 32767, -32768, INST_WORD_SIZE, LARGE_DEFINED_PC_OFFSET }, /* 4: DEFINED_PC_OFFSET. */ | |
101 | { 1, 1, 0, 0 }, /* 5: Unused. */ | |
102 | { 1, 1, 0, 0 }, /* 6: Unused. */ | |
103 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 7: LARGE_DEFINED_PC_OFFSET. */ | |
104 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 8: GOT_OFFSET. */ | |
105 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 9: PLT_OFFSET. */ | |
106 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 10: GOTOFF_OFFSET. */ | |
69b06cc8 ME |
107 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 11: TLSGD_OFFSET. */ |
108 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 12: TLSLD_OFFSET. */ | |
109 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*1, 0 }, /* 13: TLSDTPMOD_OFFSET. */ | |
110 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 14: TLSDTPREL_OFFSET. */ | |
111 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 15: TLSGOTTPREL_OFFSET. */ | |
3f0a5f17 ME |
112 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 16: TLSTPREL_OFFSET. */ |
113 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 17: TEXT_OFFSET. */ | |
114 | { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 } /* 18: TEXT_PC_OFFSET. */ | |
7ba29e2a NC |
115 | }; |
116 | ||
629310ab | 117 | static htab_t opcode_hash_control; /* Opcode mnemonics. */ |
7ba29e2a NC |
118 | |
119 | static segT sbss_segment = 0; /* Small bss section. */ | |
120 | static segT sbss2_segment = 0; /* Section not used. */ | |
121 | static segT sdata_segment = 0; /* Small data section. */ | |
122 | static segT sdata2_segment = 0; /* Small read-only section. */ | |
123 | static segT rodata_segment = 0; /* read-only section. */ | |
124 | ||
125 | /* Generate a symbol for stabs information. */ | |
126 | ||
127 | void | |
128 | microblaze_generate_symbol (char *sym) | |
129 | { | |
130 | #define MICROBLAZE_FAKE_LABEL_NAME "XL0\001" | |
131 | static int microblaze_label_count; | |
132 | sprintf (sym, "%sL%d", MICROBLAZE_FAKE_LABEL_NAME, microblaze_label_count); | |
133 | ++microblaze_label_count; | |
134 | } | |
135 | ||
136 | /* Handle the section changing pseudo-ops. */ | |
137 | ||
138 | static void | |
139 | microblaze_s_text (int ignore ATTRIBUTE_UNUSED) | |
140 | { | |
141 | #ifdef OBJ_ELF | |
142 | obj_elf_text (ignore); | |
143 | #else | |
144 | s_text (ignore); | |
145 | #endif | |
146 | } | |
147 | ||
148 | static void | |
149 | microblaze_s_data (int ignore ATTRIBUTE_UNUSED) | |
150 | { | |
151 | #ifdef OBJ_ELF | |
a8c4d40b | 152 | obj_elf_change_section (".data", SHT_PROGBITS, SHF_ALLOC+SHF_WRITE, |
a91e1603 | 153 | 0, 0, 0, 0); |
7ba29e2a NC |
154 | #else |
155 | s_data (ignore); | |
156 | #endif | |
157 | } | |
158 | ||
159 | /* Things in the .sdata segment are always considered to be in the small data section. */ | |
160 | ||
161 | static void | |
162 | microblaze_s_sdata (int ignore ATTRIBUTE_UNUSED) | |
163 | { | |
164 | #ifdef OBJ_ELF | |
a8c4d40b | 165 | obj_elf_change_section (".sdata", SHT_PROGBITS, SHF_ALLOC+SHF_WRITE, |
a91e1603 | 166 | 0, 0, 0, 0); |
7ba29e2a NC |
167 | #else |
168 | s_data (ignore); | |
169 | #endif | |
170 | } | |
171 | ||
172 | /* Pseudo op to make file scope bss items. */ | |
173 | ||
174 | static void | |
175 | microblaze_s_lcomm (int xxx ATTRIBUTE_UNUSED) | |
176 | { | |
177 | char *name; | |
178 | char c; | |
179 | char *p; | |
180 | offsetT size; | |
181 | symbolS *symbolP; | |
182 | offsetT align; | |
7ba29e2a NC |
183 | char *pfrag; |
184 | int align2; | |
185 | segT current_seg = now_seg; | |
186 | subsegT current_subseg = now_subseg; | |
187 | ||
d02603dc | 188 | c = get_symbol_name (&name); |
7ba29e2a NC |
189 | |
190 | /* Just after name is now '\0'. */ | |
191 | p = input_line_pointer; | |
d02603dc | 192 | (void) restore_line_pointer (c); |
7ba29e2a NC |
193 | SKIP_WHITESPACE (); |
194 | if (*input_line_pointer != ',') | |
195 | { | |
196 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
197 | ignore_rest_of_line (); | |
198 | return; | |
199 | } | |
200 | ||
201 | input_line_pointer++; /* skip ',' */ | |
202 | if ((size = get_absolute_expression ()) < 0) | |
203 | { | |
204 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
205 | ignore_rest_of_line (); | |
206 | return; | |
207 | } | |
208 | ||
209 | /* The third argument to .lcomm is the alignment. */ | |
210 | if (*input_line_pointer != ',') | |
211 | align = 8; | |
212 | else | |
213 | { | |
214 | ++input_line_pointer; | |
215 | align = get_absolute_expression (); | |
216 | if (align <= 0) | |
217 | { | |
218 | as_warn (_("ignoring bad alignment")); | |
219 | align = 8; | |
220 | } | |
221 | } | |
222 | ||
223 | *p = 0; | |
224 | symbolP = symbol_find_or_make (name); | |
225 | *p = c; | |
226 | ||
227 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
228 | { | |
229 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
230 | S_GET_NAME (symbolP)); | |
231 | ignore_rest_of_line (); | |
232 | return; | |
233 | } | |
234 | ||
235 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
236 | { | |
237 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
238 | S_GET_NAME (symbolP), | |
239 | (long) S_GET_VALUE (symbolP), | |
240 | (long) size); | |
241 | ||
242 | ignore_rest_of_line (); | |
243 | return; | |
244 | } | |
245 | ||
246 | /* Allocate_bss. */ | |
7ba29e2a NC |
247 | if (align) |
248 | { | |
249 | /* Convert to a power of 2 alignment. */ | |
250 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); | |
251 | if (align != 1) | |
252 | { | |
253 | as_bad (_("Common alignment not a power of 2")); | |
254 | ignore_rest_of_line (); | |
255 | return; | |
256 | } | |
257 | } | |
258 | else | |
259 | align2 = 0; | |
260 | ||
261 | record_alignment (current_seg, align2); | |
262 | subseg_set (current_seg, current_subseg); | |
263 | if (align2) | |
264 | frag_align (align2, 0, 0); | |
265 | if (S_GET_SEGMENT (symbolP) == current_seg) | |
266 | symbol_get_frag (symbolP)->fr_symbol = 0; | |
267 | symbol_set_frag (symbolP, frag_now); | |
268 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, | |
269 | (char *) 0); | |
270 | *pfrag = 0; | |
271 | S_SET_SIZE (symbolP, size); | |
272 | S_SET_SEGMENT (symbolP, current_seg); | |
273 | subseg_set (current_seg, current_subseg); | |
274 | demand_empty_rest_of_line (); | |
275 | } | |
276 | ||
277 | static void | |
278 | microblaze_s_rdata (int localvar) | |
279 | { | |
280 | #ifdef OBJ_ELF | |
281 | if (localvar == 0) | |
282 | { | |
283 | /* rodata. */ | |
a8c4d40b | 284 | obj_elf_change_section (".rodata", SHT_PROGBITS, SHF_ALLOC, |
a91e1603 | 285 | 0, 0, 0, 0); |
7ba29e2a NC |
286 | if (rodata_segment == 0) |
287 | rodata_segment = subseg_new (".rodata", 0); | |
288 | } | |
289 | else | |
290 | { | |
291 | /* 1 .sdata2. */ | |
a8c4d40b | 292 | obj_elf_change_section (".sdata2", SHT_PROGBITS, SHF_ALLOC, |
a91e1603 | 293 | 0, 0, 0, 0); |
7ba29e2a NC |
294 | } |
295 | #else | |
296 | s_data (ignore); | |
297 | #endif | |
298 | } | |
299 | ||
300 | static void | |
301 | microblaze_s_bss (int localvar) | |
302 | { | |
303 | #ifdef OBJ_ELF | |
304 | if (localvar == 0) /* bss. */ | |
a8c4d40b | 305 | obj_elf_change_section (".bss", SHT_NOBITS, SHF_ALLOC+SHF_WRITE, |
a91e1603 | 306 | 0, 0, 0, 0); |
7ba29e2a NC |
307 | else if (localvar == 1) |
308 | { | |
309 | /* sbss. */ | |
a8c4d40b | 310 | obj_elf_change_section (".sbss", SHT_NOBITS, SHF_ALLOC+SHF_WRITE, |
a91e1603 | 311 | 0, 0, 0, 0); |
7ba29e2a NC |
312 | if (sbss_segment == 0) |
313 | sbss_segment = subseg_new (".sbss", 0); | |
314 | } | |
315 | #else | |
316 | s_data (ignore); | |
317 | #endif | |
318 | } | |
319 | ||
320 | /* endp_p is always 1 as this func is called only for .end <funcname> | |
321 | This func consumes the <funcname> and calls regular processing | |
322 | s_func(1) with arg 1 (1 for end). */ | |
323 | ||
324 | static void | |
325 | microblaze_s_func (int end_p ATTRIBUTE_UNUSED) | |
326 | { | |
d02603dc NC |
327 | char *name; |
328 | restore_line_pointer (get_symbol_name (&name)); | |
7ba29e2a NC |
329 | s_func (1); |
330 | } | |
331 | ||
332 | /* Handle the .weakext pseudo-op as defined in Kane and Heinrich. */ | |
333 | ||
334 | static void | |
335 | microblaze_s_weakext (int ignore ATTRIBUTE_UNUSED) | |
336 | { | |
337 | char *name; | |
338 | int c; | |
339 | symbolS *symbolP; | |
340 | expressionS exp; | |
341 | ||
d02603dc | 342 | c = get_symbol_name (&name); |
7ba29e2a NC |
343 | symbolP = symbol_find_or_make (name); |
344 | S_SET_WEAK (symbolP); | |
d02603dc | 345 | (void) restore_line_pointer (c); |
7ba29e2a NC |
346 | |
347 | SKIP_WHITESPACE (); | |
348 | ||
349 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
350 | { | |
351 | if (S_IS_DEFINED (symbolP)) | |
352 | { | |
353 | as_bad ("Ignoring attempt to redefine symbol `%s'.", | |
354 | S_GET_NAME (symbolP)); | |
355 | ignore_rest_of_line (); | |
356 | return; | |
357 | } | |
358 | ||
359 | if (*input_line_pointer == ',') | |
360 | { | |
361 | ++input_line_pointer; | |
362 | SKIP_WHITESPACE (); | |
363 | } | |
364 | ||
365 | expression (&exp); | |
366 | if (exp.X_op != O_symbol) | |
367 | { | |
368 | as_bad ("bad .weakext directive"); | |
369 | ignore_rest_of_line (); | |
370 | return; | |
371 | } | |
372 | symbol_set_value_expression (symbolP, &exp); | |
373 | } | |
374 | ||
375 | demand_empty_rest_of_line (); | |
376 | } | |
377 | ||
378 | /* This table describes all the machine specific pseudo-ops the assembler | |
379 | has to support. The fields are: | |
380 | Pseudo-op name without dot | |
381 | Function to call to execute this pseudo-op | |
382 | Integer arg to pass to the function. */ | |
383 | /* If the pseudo-op is not found in this table, it searches in the obj-elf.c, | |
384 | and then in the read.c table. */ | |
385 | const pseudo_typeS md_pseudo_table[] = | |
386 | { | |
387 | {"lcomm", microblaze_s_lcomm, 1}, | |
388 | {"data", microblaze_s_data, 0}, | |
389 | {"data8", cons, 1}, /* Same as byte. */ | |
390 | {"data16", cons, 2}, /* Same as hword. */ | |
391 | {"data32", cons, 4}, /* Same as word. */ | |
392 | {"ent", s_func, 0}, /* Treat ent as function entry point. */ | |
393 | {"end", microblaze_s_func, 1}, /* Treat end as function end point. */ | |
394 | {"gpword", s_rva, 4}, /* gpword label => store resolved label address in data section. */ | |
395 | {"weakext", microblaze_s_weakext, 0}, | |
396 | {"rodata", microblaze_s_rdata, 0}, | |
397 | {"sdata2", microblaze_s_rdata, 1}, | |
398 | {"sdata", microblaze_s_sdata, 0}, | |
399 | {"bss", microblaze_s_bss, 0}, | |
400 | {"sbss", microblaze_s_bss, 1}, | |
401 | {"text", microblaze_s_text, 0}, | |
402 | {"word", cons, 4}, | |
403 | {"frame", s_ignore, 0}, | |
404 | {"mask", s_ignore, 0}, /* Emitted by gcc. */ | |
405 | {NULL, NULL, 0} | |
406 | }; | |
407 | ||
408 | /* This function is called once, at assembler startup time. This should | |
409 | set up all the tables, etc that the MD part of the assembler needs. */ | |
410 | ||
411 | void | |
412 | md_begin (void) | |
413 | { | |
52b83874 | 414 | const struct op_code_struct * opcode; |
7ba29e2a | 415 | |
629310ab | 416 | opcode_hash_control = str_htab_create (); |
7ba29e2a NC |
417 | |
418 | /* Insert unique names into hash table. */ | |
52b83874 | 419 | for (opcode = microblaze_opcodes; opcode->name; opcode ++) |
fe0e921f | 420 | str_hash_insert (opcode_hash_control, opcode->name, opcode, 0); |
7ba29e2a NC |
421 | } |
422 | ||
423 | /* Try to parse a reg name. */ | |
424 | ||
425 | static char * | |
426 | parse_reg (char * s, unsigned * reg) | |
427 | { | |
428 | unsigned tmpreg = 0; | |
429 | ||
430 | /* Strip leading whitespace. */ | |
e23c5ac0 | 431 | while (ISSPACE (* s)) |
7ba29e2a NC |
432 | ++ s; |
433 | ||
434 | if (strncasecmp (s, "rpc", 3) == 0) | |
435 | { | |
436 | *reg = REG_PC; | |
437 | return s + 3; | |
438 | } | |
439 | else if (strncasecmp (s, "rmsr", 4) == 0) | |
440 | { | |
441 | *reg = REG_MSR; | |
442 | return s + 4; | |
443 | } | |
444 | else if (strncasecmp (s, "rear", 4) == 0) | |
445 | { | |
446 | *reg = REG_EAR; | |
447 | return s + 4; | |
448 | } | |
449 | else if (strncasecmp (s, "resr", 4) == 0) | |
450 | { | |
451 | *reg = REG_ESR; | |
452 | return s + 4; | |
453 | } | |
454 | else if (strncasecmp (s, "rfsr", 4) == 0) | |
455 | { | |
456 | *reg = REG_FSR; | |
457 | return s + 4; | |
458 | } | |
459 | else if (strncasecmp (s, "rbtr", 4) == 0) | |
460 | { | |
461 | *reg = REG_BTR; | |
462 | return s + 4; | |
463 | } | |
464 | else if (strncasecmp (s, "redr", 4) == 0) | |
465 | { | |
466 | *reg = REG_EDR; | |
467 | return s + 4; | |
468 | } | |
469 | /* MMU registers start. */ | |
470 | else if (strncasecmp (s, "rpid", 4) == 0) | |
471 | { | |
472 | *reg = REG_PID; | |
473 | return s + 4; | |
474 | } | |
475 | else if (strncasecmp (s, "rzpr", 4) == 0) | |
476 | { | |
477 | *reg = REG_ZPR; | |
478 | return s + 4; | |
479 | } | |
480 | else if (strncasecmp (s, "rtlbx", 5) == 0) | |
481 | { | |
482 | *reg = REG_TLBX; | |
483 | return s + 5; | |
484 | } | |
485 | else if (strncasecmp (s, "rtlblo", 6) == 0) | |
486 | { | |
487 | *reg = REG_TLBLO; | |
488 | return s + 6; | |
489 | } | |
490 | else if (strncasecmp (s, "rtlbhi", 6) == 0) | |
491 | { | |
492 | *reg = REG_TLBHI; | |
493 | return s + 6; | |
494 | } | |
495 | else if (strncasecmp (s, "rtlbsx", 6) == 0) | |
496 | { | |
497 | *reg = REG_TLBSX; | |
498 | return s + 6; | |
499 | } | |
500 | /* MMU registers end. */ | |
501 | else if (strncasecmp (s, "rpvr", 4) == 0) | |
502 | { | |
e23c5ac0 | 503 | if (ISDIGIT (s[4]) && ISDIGIT (s[5])) |
7ba29e2a NC |
504 | { |
505 | tmpreg = (s[4]-'0')*10 + s[5] - '0'; | |
506 | s += 6; | |
507 | } | |
508 | ||
e23c5ac0 | 509 | else if (ISDIGIT (s[4])) |
7ba29e2a NC |
510 | { |
511 | tmpreg = s[4] - '0'; | |
512 | s += 5; | |
513 | } | |
514 | else | |
515 | as_bad (_("register expected, but saw '%.6s'"), s); | |
516 | if ((int) tmpreg >= MIN_PVR_REGNUM && tmpreg <= MAX_PVR_REGNUM) | |
517 | *reg = REG_PVR + tmpreg; | |
518 | else | |
519 | { | |
520 | as_bad (_("Invalid register number at '%.6s'"), s); | |
521 | *reg = REG_PVR; | |
522 | } | |
523 | return s; | |
524 | } | |
525 | else if (strncasecmp (s, "rsp", 3) == 0) | |
526 | { | |
527 | *reg = REG_SP; | |
528 | return s + 3; | |
529 | } | |
530 | else if (strncasecmp (s, "rfsl", 4) == 0) | |
531 | { | |
e23c5ac0 | 532 | if (ISDIGIT (s[4]) && ISDIGIT (s[5])) |
7ba29e2a NC |
533 | { |
534 | tmpreg = (s[4] - '0') * 10 + s[5] - '0'; | |
535 | s += 6; | |
536 | } | |
e23c5ac0 | 537 | else if (ISDIGIT (s[4])) |
7ba29e2a NC |
538 | { |
539 | tmpreg = s[4] - '0'; | |
540 | s += 5; | |
541 | } | |
542 | else | |
543 | as_bad (_("register expected, but saw '%.6s'"), s); | |
544 | ||
e23c5ac0 | 545 | if ((int) tmpreg >= MIN_REGNUM && tmpreg <= MAX_REGNUM) |
7ba29e2a NC |
546 | *reg = tmpreg; |
547 | else | |
548 | { | |
549 | as_bad (_("Invalid register number at '%.6s'"), s); | |
550 | *reg = 0; | |
551 | } | |
552 | return s; | |
553 | } | |
0db4b326 ME |
554 | /* Stack protection registers. */ |
555 | else if (strncasecmp (s, "rshr", 4) == 0) | |
556 | { | |
557 | *reg = REG_SHR; | |
558 | return s + 4; | |
559 | } | |
560 | else if (strncasecmp (s, "rslr", 4) == 0) | |
561 | { | |
562 | *reg = REG_SLR; | |
563 | return s + 4; | |
564 | } | |
7ba29e2a NC |
565 | else |
566 | { | |
e23c5ac0 | 567 | if (TOLOWER (s[0]) == 'r') |
7ba29e2a | 568 | { |
e23c5ac0 | 569 | if (ISDIGIT (s[1]) && ISDIGIT (s[2])) |
7ba29e2a NC |
570 | { |
571 | tmpreg = (s[1] - '0') * 10 + s[2] - '0'; | |
572 | s += 3; | |
573 | } | |
e23c5ac0 | 574 | else if (ISDIGIT (s[1])) |
7ba29e2a NC |
575 | { |
576 | tmpreg = s[1] - '0'; | |
577 | s += 2; | |
578 | } | |
579 | else | |
580 | as_bad (_("register expected, but saw '%.6s'"), s); | |
581 | ||
582 | if ((int)tmpreg >= MIN_REGNUM && tmpreg <= MAX_REGNUM) | |
583 | *reg = tmpreg; | |
584 | else | |
585 | { | |
586 | as_bad (_("Invalid register number at '%.6s'"), s); | |
587 | *reg = 0; | |
588 | } | |
589 | return s; | |
590 | } | |
591 | } | |
592 | as_bad (_("register expected, but saw '%.6s'"), s); | |
593 | *reg = 0; | |
594 | return s; | |
595 | } | |
596 | ||
597 | static char * | |
598 | parse_exp (char *s, expressionS *e) | |
599 | { | |
600 | char *save; | |
d3ce72d0 | 601 | char *new_pointer; |
7ba29e2a NC |
602 | |
603 | /* Skip whitespace. */ | |
e23c5ac0 | 604 | while (ISSPACE (* s)) |
7ba29e2a NC |
605 | ++ s; |
606 | ||
607 | save = input_line_pointer; | |
608 | input_line_pointer = s; | |
609 | ||
610 | expression (e); | |
611 | ||
612 | if (e->X_op == O_absent) | |
613 | as_fatal (_("missing operand")); | |
614 | ||
d3ce72d0 | 615 | new_pointer = input_line_pointer; |
7ba29e2a NC |
616 | input_line_pointer = save; |
617 | ||
d3ce72d0 | 618 | return new_pointer; |
7ba29e2a NC |
619 | } |
620 | ||
621 | /* Symbol modifiers (@GOT, @PLT, @GOTOFF). */ | |
69b06cc8 | 622 | #define IMM_NONE 0 |
7ba29e2a NC |
623 | #define IMM_GOT 1 |
624 | #define IMM_PLT 2 | |
625 | #define IMM_GOTOFF 3 | |
69b06cc8 ME |
626 | #define IMM_TLSGD 4 |
627 | #define IMM_TLSLD 5 | |
628 | #define IMM_TLSDTPMOD 6 | |
629 | #define IMM_TLSDTPREL 7 | |
630 | #define IMM_TLSTPREL 8 | |
3f0a5f17 ME |
631 | #define IMM_TXTREL 9 |
632 | #define IMM_TXTPCREL 10 | |
633 | #define IMM_MAX 11 | |
69b06cc8 ME |
634 | |
635 | struct imm_type { | |
e0471c16 | 636 | const char *isuffix; /* Suffix String */ |
69b06cc8 ME |
637 | int itype; /* Suffix Type */ |
638 | int otype; /* Offset Type */ | |
639 | }; | |
640 | ||
33eaf5de | 641 | /* These are NOT in ascending order of type, GOTOFF is ahead to make |
69b06cc8 ME |
642 | sure @GOTOFF does not get matched with @GOT */ |
643 | static struct imm_type imm_types[] = { | |
644 | { "NONE", IMM_NONE , 0 }, | |
645 | { "GOTOFF", IMM_GOTOFF , GOTOFF_OFFSET }, | |
646 | { "GOT", IMM_GOT , GOT_OFFSET }, | |
647 | { "PLT", IMM_PLT , PLT_OFFSET }, | |
648 | { "TLSGD", IMM_TLSGD , TLSGD_OFFSET }, | |
649 | { "TLSLDM", IMM_TLSLD, TLSLD_OFFSET }, | |
650 | { "TLSDTPMOD", IMM_TLSDTPMOD, TLSDTPMOD_OFFSET }, | |
651 | { "TLSDTPREL", IMM_TLSDTPREL, TLSDTPREL_OFFSET }, | |
3f0a5f17 ME |
652 | { "TLSTPREL", IMM_TLSTPREL, TLSTPREL_OFFSET }, |
653 | { "TXTREL", IMM_TXTREL, TEXT_OFFSET }, | |
654 | { "TXTPCREL", IMM_TXTPCREL, TEXT_PC_OFFSET } | |
69b06cc8 ME |
655 | }; |
656 | ||
657 | static int | |
658 | match_imm (const char *s, int *ilen) | |
659 | { | |
660 | int i; | |
661 | int slen; | |
662 | ||
663 | /* Check for matching suffix */ | |
664 | for (i = 1; i < IMM_MAX; i++) | |
665 | { | |
666 | slen = strlen (imm_types[i].isuffix); | |
667 | ||
668 | if (strncmp (imm_types[i].isuffix, s, slen) == 0) | |
669 | { | |
670 | *ilen = slen; | |
671 | return imm_types[i].itype; | |
672 | } | |
673 | } /* for */ | |
674 | *ilen = 0; | |
675 | return 0; | |
676 | } | |
677 | ||
678 | static int | |
679 | get_imm_otype (int itype) | |
680 | { | |
681 | int i, otype; | |
682 | ||
683 | otype = 0; | |
684 | /* Check for matching itype */ | |
685 | for (i = 1; i < IMM_MAX; i++) | |
686 | { | |
687 | if (imm_types[i].itype == itype) | |
688 | { | |
689 | otype = imm_types[i].otype; | |
690 | break; | |
691 | } | |
692 | } | |
693 | return otype; | |
694 | } | |
7ba29e2a NC |
695 | |
696 | static symbolS * GOT_symbol; | |
697 | ||
698 | #define GOT_SYMBOL_NAME "_GLOBAL_OFFSET_TABLE_" | |
699 | ||
700 | static char * | |
03e08038 | 701 | parse_imm (char * s, expressionS * e, offsetT min, offsetT max) |
7ba29e2a | 702 | { |
d3ce72d0 | 703 | char *new_pointer; |
7ba29e2a | 704 | char *atp; |
69b06cc8 ME |
705 | int itype, ilen; |
706 | ||
707 | ilen = 0; | |
7ba29e2a NC |
708 | |
709 | /* Find the start of "@GOT" or "@PLT" suffix (if any) */ | |
710 | for (atp = s; *atp != '@'; atp++) | |
711 | if (is_end_of_line[(unsigned char) *atp]) | |
712 | break; | |
713 | ||
714 | if (*atp == '@') | |
715 | { | |
69b06cc8 ME |
716 | itype = match_imm (atp + 1, &ilen); |
717 | if (itype != 0) | |
718 | { | |
719 | *atp = 0; | |
720 | e->X_md = itype; | |
721 | } | |
7ba29e2a | 722 | else |
69b06cc8 ME |
723 | { |
724 | atp = NULL; | |
725 | e->X_md = 0; | |
726 | ilen = 0; | |
727 | } | |
7ba29e2a NC |
728 | *atp = 0; |
729 | } | |
730 | else | |
731 | { | |
732 | atp = NULL; | |
733 | e->X_md = 0; | |
734 | } | |
735 | ||
736 | if (atp && !GOT_symbol) | |
737 | { | |
738 | GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); | |
739 | } | |
740 | ||
d3ce72d0 | 741 | new_pointer = parse_exp (s, e); |
7ba29e2a | 742 | |
d34049e8 | 743 | if (!GOT_symbol && startswith (s, GOT_SYMBOL_NAME)) |
69b06cc8 ME |
744 | { |
745 | GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); | |
746 | } | |
747 | ||
7ba29e2a NC |
748 | if (e->X_op == O_absent) |
749 | ; /* An error message has already been emitted. */ | |
750 | else if ((e->X_op != O_constant && e->X_op != O_symbol) ) | |
751 | as_fatal (_("operand must be a constant or a label")); | |
f66adc4e | 752 | else if (e->X_op == O_constant) |
7ba29e2a | 753 | { |
ac0d427f | 754 | /* Special case: sign extend negative 32-bit values to offsetT size. */ |
f66adc4e | 755 | if ((e->X_add_number >> 31) == 1) |
ac0d427f | 756 | e->X_add_number |= -((addressT) (1U << 31)); |
f66adc4e NC |
757 | |
758 | if (e->X_add_number < min || e->X_add_number > max) | |
759 | { | |
760 | as_fatal (_("operand must be absolute in range %lx..%lx, not %lx"), | |
761 | (long) min, (long) max, (long) e->X_add_number); | |
762 | } | |
7ba29e2a NC |
763 | } |
764 | ||
765 | if (atp) | |
766 | { | |
767 | *atp = '@'; /* restore back (needed?) */ | |
d3ce72d0 | 768 | if (new_pointer >= atp) |
69b06cc8 | 769 | new_pointer += ilen + 1; /* sizeof (imm_suffix) + 1 for '@' */ |
7ba29e2a | 770 | } |
d3ce72d0 | 771 | return new_pointer; |
7ba29e2a NC |
772 | } |
773 | ||
774 | static char * | |
775 | check_got (int * got_type, int * got_len) | |
776 | { | |
d3ce72d0 | 777 | char *new_pointer; |
7ba29e2a NC |
778 | char *atp; |
779 | char *past_got; | |
780 | int first, second; | |
781 | char *tmpbuf; | |
782 | ||
783 | /* Find the start of "@GOT" or "@PLT" suffix (if any). */ | |
784 | for (atp = input_line_pointer; *atp != '@'; atp++) | |
785 | if (is_end_of_line[(unsigned char) *atp]) | |
786 | return NULL; | |
787 | ||
d34049e8 | 788 | if (startswith (atp + 1, "GOTOFF")) |
7ba29e2a NC |
789 | { |
790 | *got_len = 6; | |
791 | *got_type = IMM_GOTOFF; | |
792 | } | |
d34049e8 | 793 | else if (startswith (atp + 1, "GOT")) |
7ba29e2a NC |
794 | { |
795 | *got_len = 3; | |
796 | *got_type = IMM_GOT; | |
797 | } | |
d34049e8 | 798 | else if (startswith (atp + 1, "PLT")) |
7ba29e2a NC |
799 | { |
800 | *got_len = 3; | |
801 | *got_type = IMM_PLT; | |
802 | } | |
803 | else | |
804 | return NULL; | |
805 | ||
806 | if (!GOT_symbol) | |
807 | GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); | |
808 | ||
809 | first = atp - input_line_pointer; | |
810 | ||
811 | past_got = atp + *got_len + 1; | |
d3ce72d0 | 812 | for (new_pointer = past_got; !is_end_of_line[(unsigned char) *new_pointer++];) |
7ba29e2a | 813 | ; |
d3ce72d0 | 814 | second = new_pointer - past_got; |
325801bd TS |
815 | /* One extra byte for ' ' and one for NUL. */ |
816 | tmpbuf = XNEWVEC (char, first + second + 2); | |
7ba29e2a NC |
817 | memcpy (tmpbuf, input_line_pointer, first); |
818 | tmpbuf[first] = ' '; /* @GOTOFF is replaced with a single space. */ | |
819 | memcpy (tmpbuf + first + 1, past_got, second); | |
820 | tmpbuf[first + second + 1] = '\0'; | |
821 | ||
822 | return tmpbuf; | |
823 | } | |
824 | ||
62ebcb5c | 825 | extern bfd_reloc_code_real_type |
7ba29e2a NC |
826 | parse_cons_expression_microblaze (expressionS *exp, int size) |
827 | { | |
828 | if (size == 4) | |
829 | { | |
830 | /* Handle @GOTOFF et.al. */ | |
831 | char *save, *gotfree_copy; | |
832 | int got_len, got_type; | |
833 | ||
834 | save = input_line_pointer; | |
835 | gotfree_copy = check_got (& got_type, & got_len); | |
836 | if (gotfree_copy) | |
837 | input_line_pointer = gotfree_copy; | |
838 | ||
839 | expression (exp); | |
840 | ||
841 | if (gotfree_copy) | |
842 | { | |
843 | exp->X_md = got_type; | |
844 | input_line_pointer = save + (input_line_pointer - gotfree_copy) | |
845 | + got_len; | |
846 | free (gotfree_copy); | |
847 | } | |
848 | } | |
849 | else | |
850 | expression (exp); | |
62ebcb5c | 851 | return BFD_RELOC_NONE; |
7ba29e2a NC |
852 | } |
853 | ||
854 | /* This is the guts of the machine-dependent assembler. STR points to a | |
855 | machine dependent instruction. This function is supposed to emit | |
856 | the frags/bytes it assembles to. */ | |
857 | ||
e742e119 TS |
858 | static const char * str_microblaze_ro_anchor = "RO"; |
859 | static const char * str_microblaze_rw_anchor = "RW"; | |
7ba29e2a | 860 | |
5b7c81bd | 861 | static bool |
7ba29e2a NC |
862 | check_spl_reg (unsigned * reg) |
863 | { | |
864 | if ((*reg == REG_MSR) || (*reg == REG_PC) | |
865 | || (*reg == REG_EAR) || (*reg == REG_ESR) | |
866 | || (*reg == REG_FSR) || (*reg == REG_BTR) || (*reg == REG_EDR) | |
867 | || (*reg == REG_PID) || (*reg == REG_ZPR) | |
868 | || (*reg == REG_TLBX) || (*reg == REG_TLBLO) | |
869 | || (*reg == REG_TLBHI) || (*reg == REG_TLBSX) | |
0db4b326 | 870 | || (*reg == REG_SHR) || (*reg == REG_SLR) |
7ba29e2a | 871 | || (*reg >= REG_PVR+MIN_PVR_REGNUM && *reg <= REG_PVR+MAX_PVR_REGNUM)) |
5b7c81bd | 872 | return true; |
7ba29e2a | 873 | |
5b7c81bd | 874 | return false; |
7ba29e2a NC |
875 | } |
876 | ||
877 | /* Here we decide which fixups can be adjusted to make them relative to | |
878 | the beginning of the section instead of the symbol. Basically we need | |
879 | to make sure that the dynamic relocations are done correctly, so in | |
880 | some cases we force the original symbol to be used. */ | |
881 | ||
882 | int | |
883 | tc_microblaze_fix_adjustable (struct fix *fixP) | |
884 | { | |
885 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol) | |
886 | return 0; | |
887 | ||
888 | if (fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF | |
889 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF | |
890 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT | |
69b06cc8 ME |
891 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT |
892 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSGD | |
893 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSLD | |
894 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_TLSDTPMOD | |
895 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_TLSDTPREL | |
896 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSDTPREL | |
897 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL | |
898 | || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSTPREL) | |
7ba29e2a NC |
899 | return 0; |
900 | ||
901 | return 1; | |
902 | } | |
903 | ||
904 | void | |
905 | md_assemble (char * str) | |
906 | { | |
907 | char * op_start; | |
908 | char * op_end; | |
909 | struct op_code_struct * opcode, *opcode1; | |
910 | char * output = NULL; | |
911 | int nlen = 0; | |
912 | int i; | |
913 | unsigned long inst, inst1; | |
914 | unsigned reg1; | |
915 | unsigned reg2; | |
916 | unsigned reg3; | |
917 | unsigned isize; | |
1faddd8d | 918 | unsigned int immed = 0, temp; |
7ba29e2a NC |
919 | expressionS exp; |
920 | char name[20]; | |
921 | ||
922 | /* Drop leading whitespace. */ | |
e23c5ac0 | 923 | while (ISSPACE (* str)) |
7ba29e2a NC |
924 | str ++; |
925 | ||
926 | /* Find the op code end. */ | |
927 | for (op_start = op_end = str; | |
4ad7ac30 | 928 | *op_end && !is_end_of_line[(unsigned char) *op_end] && *op_end != ' '; |
7ba29e2a NC |
929 | op_end++) |
930 | { | |
931 | name[nlen] = op_start[nlen]; | |
932 | nlen++; | |
4ad7ac30 AM |
933 | if (nlen == sizeof (name) - 1) |
934 | break; | |
7ba29e2a NC |
935 | } |
936 | ||
937 | name [nlen] = 0; | |
938 | ||
939 | if (nlen == 0) | |
940 | { | |
941 | as_bad (_("can't find opcode ")); | |
942 | return; | |
943 | } | |
944 | ||
629310ab | 945 | opcode = (struct op_code_struct *) str_hash_find (opcode_hash_control, name); |
7ba29e2a NC |
946 | if (opcode == NULL) |
947 | { | |
948 | as_bad (_("unknown opcode \"%s\""), name); | |
949 | return; | |
950 | } | |
951 | ||
952 | inst = opcode->bit_sequence; | |
953 | isize = 4; | |
954 | ||
955 | switch (opcode->inst_type) | |
956 | { | |
957 | case INST_TYPE_RD_R1_R2: | |
958 | if (strcmp (op_end, "")) | |
959 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
960 | else | |
961 | { | |
962 | as_fatal (_("Error in statement syntax")); | |
963 | reg1 = 0; | |
964 | } | |
965 | if (strcmp (op_end, "")) | |
966 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
967 | else | |
968 | { | |
969 | as_fatal (_("Error in statement syntax")); | |
970 | reg2 = 0; | |
971 | } | |
972 | if (strcmp (op_end, "")) | |
973 | op_end = parse_reg (op_end + 1, ®3); /* Get r2. */ | |
974 | else | |
975 | { | |
976 | as_fatal (_("Error in statement syntax")); | |
977 | reg3 = 0; | |
978 | } | |
979 | ||
980 | /* Check for spl registers. */ | |
981 | if (check_spl_reg (& reg1)) | |
982 | as_fatal (_("Cannot use special register with this instruction")); | |
983 | if (check_spl_reg (& reg2)) | |
984 | as_fatal (_("Cannot use special register with this instruction")); | |
985 | if (check_spl_reg (& reg3)) | |
986 | as_fatal (_("Cannot use special register with this instruction")); | |
987 | ||
988 | if (streq (name, "sub")) | |
989 | { | |
990 | /* sub rd, r1, r2 becomes rsub rd, r2, r1. */ | |
991 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
992 | inst |= (reg3 << RA_LOW) & RA_MASK; | |
993 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
994 | } | |
995 | else | |
996 | { | |
997 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
998 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
999 | inst |= (reg3 << RB_LOW) & RB_MASK; | |
1000 | } | |
1001 | output = frag_more (isize); | |
1002 | break; | |
1003 | ||
1004 | case INST_TYPE_RD_R1_IMM: | |
1005 | if (strcmp (op_end, "")) | |
1006 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1007 | else | |
1008 | { | |
1009 | as_fatal (_("Error in statement syntax")); | |
1010 | reg1 = 0; | |
1011 | } | |
1012 | if (strcmp (op_end, "")) | |
1013 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1014 | else | |
1015 | { | |
1016 | as_fatal (_("Error in statement syntax")); | |
1017 | reg2 = 0; | |
1018 | } | |
1019 | if (strcmp (op_end, "")) | |
1020 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1021 | else | |
1022 | as_fatal (_("Error in statement syntax")); | |
1023 | ||
1024 | /* Check for spl registers. */ | |
1025 | if (check_spl_reg (& reg1)) | |
1026 | as_fatal (_("Cannot use special register with this instruction")); | |
1027 | if (check_spl_reg (& reg2)) | |
1028 | as_fatal (_("Cannot use special register with this instruction")); | |
1029 | ||
3f0a5f17 | 1030 | if (exp.X_op != O_constant || exp.X_md == IMM_TXTPCREL) |
7ba29e2a | 1031 | { |
e742e119 | 1032 | const char *opc; |
7ba29e2a NC |
1033 | relax_substateT subtype; |
1034 | ||
1035 | if (streq (name, "lmi")) | |
1036 | as_fatal (_("lmi pseudo instruction should not use a label in imm field")); | |
1037 | else if (streq (name, "smi")) | |
1038 | as_fatal (_("smi pseudo instruction should not use a label in imm field")); | |
1039 | ||
1040 | if (reg2 == REG_ROSDP) | |
1041 | opc = str_microblaze_ro_anchor; | |
1042 | else if (reg2 == REG_RWSDP) | |
1043 | opc = str_microblaze_rw_anchor; | |
1044 | else | |
1045 | opc = NULL; | |
69b06cc8 ME |
1046 | if (exp.X_md != 0) |
1047 | subtype = get_imm_otype(exp.X_md); | |
7ba29e2a NC |
1048 | else |
1049 | subtype = opcode->inst_offset_type; | |
1050 | ||
1051 | output = frag_var (rs_machine_dependent, | |
1052 | isize * 2, /* maxm of 2 words. */ | |
1053 | isize, /* minm of 1 word. */ | |
1054 | subtype, /* PC-relative or not. */ | |
1055 | exp.X_add_symbol, | |
1056 | exp.X_add_number, | |
e742e119 | 1057 | (char *) opc); |
c7d6f518 | 1058 | immed = 0; |
7ba29e2a NC |
1059 | } |
1060 | else | |
1061 | { | |
1062 | output = frag_more (isize); | |
c7d6f518 | 1063 | immed = exp.X_add_number; |
7ba29e2a NC |
1064 | } |
1065 | ||
1066 | if (streq (name, "lmi") || streq (name, "smi")) | |
1067 | { | |
1068 | /* Load/store 32-d consecutive registers. Used on exit/entry | |
1069 | to subroutines to save and restore registers to stack. | |
1070 | Generate 32-d insts. */ | |
1071 | int count; | |
1072 | ||
1073 | count = 32 - reg1; | |
1074 | if (streq (name, "lmi")) | |
fe0e921f AM |
1075 | opcode |
1076 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, | |
1077 | "lwi"); | |
7ba29e2a | 1078 | else |
fe0e921f AM |
1079 | opcode |
1080 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, | |
1081 | "swi"); | |
7ba29e2a NC |
1082 | if (opcode == NULL) |
1083 | { | |
1084 | as_bad (_("unknown opcode \"%s\""), "lwi"); | |
1085 | return; | |
1086 | } | |
1087 | inst = opcode->bit_sequence; | |
1088 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1089 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1090 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1091 | |
1092 | for (i = 0; i < count - 1; i++) | |
1093 | { | |
1094 | output[0] = INST_BYTE0 (inst); | |
1095 | output[1] = INST_BYTE1 (inst); | |
1096 | output[2] = INST_BYTE2 (inst); | |
1097 | output[3] = INST_BYTE3 (inst); | |
1098 | output = frag_more (isize); | |
c7d6f518 | 1099 | immed = immed + 4; |
7ba29e2a NC |
1100 | reg1++; |
1101 | inst = opcode->bit_sequence; | |
1102 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1103 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1104 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1105 | } |
1106 | } | |
1107 | else | |
1108 | { | |
c7d6f518 | 1109 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1110 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1111 | { | |
1112 | /* Needs an immediate inst. */ | |
fe0e921f AM |
1113 | opcode1 |
1114 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, | |
1115 | "imm"); | |
7ba29e2a NC |
1116 | if (opcode1 == NULL) |
1117 | { | |
1118 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1119 | return; | |
1120 | } | |
1121 | ||
1122 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1123 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1124 | output[0] = INST_BYTE0 (inst1); |
1125 | output[1] = INST_BYTE1 (inst1); | |
1126 | output[2] = INST_BYTE2 (inst1); | |
1127 | output[3] = INST_BYTE3 (inst1); | |
1128 | output = frag_more (isize); | |
1129 | } | |
1130 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1131 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1132 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1133 | } |
1134 | break; | |
1135 | ||
1136 | case INST_TYPE_RD_R1_IMM5: | |
1137 | if (strcmp (op_end, "")) | |
1138 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1139 | else | |
1140 | { | |
1141 | as_fatal (_("Error in statement syntax")); | |
1142 | reg1 = 0; | |
1143 | } | |
1144 | if (strcmp (op_end, "")) | |
1145 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1146 | else | |
1147 | { | |
1148 | as_fatal (_("Error in statement syntax")); | |
1149 | reg2 = 0; | |
1150 | } | |
1151 | if (strcmp (op_end, "")) | |
1152 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1153 | else | |
1154 | as_fatal (_("Error in statement syntax")); | |
1155 | ||
1156 | /* Check for spl registers. */ | |
1157 | if (check_spl_reg (®1)) | |
1158 | as_fatal (_("Cannot use special register with this instruction")); | |
1159 | if (check_spl_reg (®2)) | |
1160 | as_fatal (_("Cannot use special register with this instruction")); | |
1161 | ||
1162 | if (exp.X_op != O_constant) | |
1163 | as_warn (_("Symbol used as immediate for shift instruction")); | |
1164 | else | |
1165 | { | |
1166 | output = frag_more (isize); | |
c7d6f518 | 1167 | immed = exp.X_add_number; |
7ba29e2a NC |
1168 | } |
1169 | ||
c7d6f518 | 1170 | if (immed != (immed % 32)) |
7ba29e2a NC |
1171 | { |
1172 | as_warn (_("Shift value > 32. using <value %% 32>")); | |
c7d6f518 | 1173 | immed = immed % 32; |
7ba29e2a NC |
1174 | } |
1175 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1176 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1177 | inst |= (immed << IMM_LOW) & IMM5_MASK; |
7ba29e2a NC |
1178 | break; |
1179 | ||
1180 | case INST_TYPE_R1_R2: | |
1181 | if (strcmp (op_end, "")) | |
1182 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1183 | else | |
1184 | { | |
1185 | as_fatal (_("Error in statement syntax")); | |
1186 | reg1 = 0; | |
1187 | } | |
1188 | if (strcmp (op_end, "")) | |
1189 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ | |
1190 | else | |
1191 | { | |
1192 | as_fatal (_("Error in statement syntax")); | |
1193 | reg2 = 0; | |
1194 | } | |
1195 | ||
1196 | /* Check for spl registers. */ | |
1197 | if (check_spl_reg (& reg1)) | |
1198 | as_fatal (_("Cannot use special register with this instruction")); | |
1199 | if (check_spl_reg (& reg2)) | |
1200 | as_fatal (_("Cannot use special register with this instruction")); | |
1201 | ||
1202 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
1203 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1204 | output = frag_more (isize); | |
1205 | break; | |
1206 | ||
1207 | case INST_TYPE_RD_R1: | |
1208 | if (strcmp (op_end, "")) | |
1209 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1210 | else | |
1211 | { | |
1212 | as_fatal (_("Error in statement syntax")); | |
1213 | reg1 = 0; | |
1214 | } | |
1215 | if (strcmp (op_end, "")) | |
1216 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1217 | else | |
1218 | { | |
1219 | as_fatal (_("Error in statement syntax")); | |
1220 | reg2 =0; | |
1221 | } | |
1222 | ||
1223 | /* Check for spl registers. */ | |
1224 | if (check_spl_reg (®1)) | |
1225 | as_fatal (_("Cannot use special register with this instruction")); | |
1226 | if (check_spl_reg (®2)) | |
1227 | as_fatal (_("Cannot use special register with this instruction")); | |
1228 | ||
1229 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1230 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
1231 | output = frag_more (isize); | |
1232 | break; | |
1233 | ||
1234 | case INST_TYPE_RD_RFSL: | |
1235 | if (strcmp (op_end, "")) | |
1236 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1237 | else | |
1238 | { | |
1239 | as_fatal (_("Error in statement syntax")); | |
1240 | reg1 = 0; | |
1241 | } | |
1242 | if (strcmp (op_end, "")) | |
c7d6f518 | 1243 | op_end = parse_reg (op_end + 1, &immed); /* Get rfslN. */ |
7ba29e2a NC |
1244 | else |
1245 | { | |
1246 | as_fatal (_("Error in statement syntax")); | |
c7d6f518 | 1247 | immed = 0; |
7ba29e2a NC |
1248 | } |
1249 | ||
1250 | /* Check for spl registers. */ | |
1251 | if (check_spl_reg (®1)) | |
1252 | as_fatal (_("Cannot use special register with this instruction")); | |
1253 | ||
1254 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1255 | inst |= (immed << IMM_LOW) & RFSL_MASK; |
7ba29e2a NC |
1256 | output = frag_more (isize); |
1257 | break; | |
1258 | ||
1259 | case INST_TYPE_RD_IMM15: | |
1260 | if (strcmp (op_end, "")) | |
1261 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1262 | else | |
1263 | { | |
1264 | as_fatal (_("Error in statement syntax")); | |
1265 | reg1 = 0; | |
1266 | } | |
1267 | ||
1268 | if (strcmp (op_end, "")) | |
1269 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM15, MAX_IMM15); | |
1270 | else | |
1271 | as_fatal (_("Error in statement syntax")); | |
1272 | ||
1273 | /* Check for spl registers. */ | |
1274 | if (check_spl_reg (®1)) | |
1275 | as_fatal (_("Cannot use special register with this instruction")); | |
1276 | ||
1277 | if (exp.X_op != O_constant) | |
1278 | as_fatal (_("Symbol used as immediate value for msrset/msrclr instructions")); | |
1279 | else | |
1280 | { | |
1281 | output = frag_more (isize); | |
c7d6f518 | 1282 | immed = exp.X_add_number; |
7ba29e2a NC |
1283 | } |
1284 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1285 | inst |= (immed << IMM_LOW) & IMM15_MASK; |
7ba29e2a NC |
1286 | break; |
1287 | ||
1288 | case INST_TYPE_R1_RFSL: | |
1289 | if (strcmp (op_end, "")) | |
1290 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1291 | else | |
1292 | { | |
1293 | as_fatal (_("Error in statement syntax")); | |
1294 | reg1 = 0; | |
1295 | } | |
1296 | if (strcmp (op_end, "")) | |
c7d6f518 | 1297 | op_end = parse_reg (op_end + 1, &immed); /* Get rfslN. */ |
7ba29e2a NC |
1298 | else |
1299 | { | |
1300 | as_fatal (_("Error in statement syntax")); | |
c7d6f518 | 1301 | immed = 0; |
7ba29e2a NC |
1302 | } |
1303 | ||
1304 | /* Check for spl registers. */ | |
1305 | if (check_spl_reg (®1)) | |
1306 | as_fatal (_("Cannot use special register with this instruction")); | |
1307 | ||
1308 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1309 | inst |= (immed << IMM_LOW) & RFSL_MASK; |
7ba29e2a NC |
1310 | output = frag_more (isize); |
1311 | break; | |
1312 | ||
1313 | case INST_TYPE_RFSL: | |
1314 | if (strcmp (op_end, "")) | |
c7d6f518 | 1315 | op_end = parse_reg (op_end + 1, &immed); /* Get rfslN. */ |
7ba29e2a NC |
1316 | else |
1317 | { | |
1318 | as_fatal (_("Error in statement syntax")); | |
c7d6f518 | 1319 | immed = 0; |
7ba29e2a | 1320 | } |
c7d6f518 | 1321 | inst |= (immed << IMM_LOW) & RFSL_MASK; |
7ba29e2a NC |
1322 | output = frag_more (isize); |
1323 | break; | |
1324 | ||
1325 | case INST_TYPE_R1: | |
1326 | if (strcmp (op_end, "")) | |
1327 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1328 | else | |
1329 | { | |
1330 | as_fatal (_("Error in statement syntax")); | |
1331 | reg1 = 0; | |
1332 | } | |
1333 | ||
1334 | /* Check for spl registers. */ | |
1335 | if (check_spl_reg (®1)) | |
1336 | as_fatal (_("Cannot use special register with this instruction")); | |
1337 | ||
1338 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
1339 | output = frag_more (isize); | |
1340 | break; | |
1341 | ||
1342 | /* For tuqula insn...:) */ | |
1343 | case INST_TYPE_RD: | |
1344 | if (strcmp (op_end, "")) | |
1345 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1346 | else | |
1347 | { | |
1348 | as_fatal (_("Error in statement syntax")); | |
1349 | reg1 = 0; | |
1350 | } | |
1351 | ||
1352 | /* Check for spl registers. */ | |
1353 | if (check_spl_reg (®1)) | |
1354 | as_fatal (_("Cannot use special register with this instruction")); | |
1355 | ||
1356 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1357 | output = frag_more (isize); | |
1358 | break; | |
1359 | ||
1360 | case INST_TYPE_RD_SPECIAL: | |
1361 | if (strcmp (op_end, "")) | |
1362 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1363 | else | |
1364 | { | |
1365 | as_fatal (_("Error in statement syntax")); | |
1366 | reg1 = 0; | |
1367 | } | |
1368 | if (strcmp (op_end, "")) | |
1369 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1370 | else | |
1371 | { | |
1372 | as_fatal (_("Error in statement syntax")); | |
1373 | reg2 = 0; | |
1374 | } | |
1375 | ||
1376 | if (reg2 == REG_MSR) | |
c7d6f518 | 1377 | immed = opcode->immval_mask | REG_MSR_MASK; |
7ba29e2a | 1378 | else if (reg2 == REG_PC) |
c7d6f518 | 1379 | immed = opcode->immval_mask | REG_PC_MASK; |
7ba29e2a | 1380 | else if (reg2 == REG_EAR) |
c7d6f518 | 1381 | immed = opcode->immval_mask | REG_EAR_MASK; |
7ba29e2a | 1382 | else if (reg2 == REG_ESR) |
c7d6f518 | 1383 | immed = opcode->immval_mask | REG_ESR_MASK; |
7ba29e2a | 1384 | else if (reg2 == REG_FSR) |
c7d6f518 | 1385 | immed = opcode->immval_mask | REG_FSR_MASK; |
7ba29e2a | 1386 | else if (reg2 == REG_BTR) |
c7d6f518 | 1387 | immed = opcode->immval_mask | REG_BTR_MASK; |
7ba29e2a | 1388 | else if (reg2 == REG_EDR) |
c7d6f518 | 1389 | immed = opcode->immval_mask | REG_EDR_MASK; |
7ba29e2a | 1390 | else if (reg2 == REG_PID) |
c7d6f518 | 1391 | immed = opcode->immval_mask | REG_PID_MASK; |
7ba29e2a | 1392 | else if (reg2 == REG_ZPR) |
c7d6f518 | 1393 | immed = opcode->immval_mask | REG_ZPR_MASK; |
7ba29e2a | 1394 | else if (reg2 == REG_TLBX) |
c7d6f518 | 1395 | immed = opcode->immval_mask | REG_TLBX_MASK; |
7ba29e2a | 1396 | else if (reg2 == REG_TLBLO) |
c7d6f518 | 1397 | immed = opcode->immval_mask | REG_TLBLO_MASK; |
7ba29e2a | 1398 | else if (reg2 == REG_TLBHI) |
c7d6f518 | 1399 | immed = opcode->immval_mask | REG_TLBHI_MASK; |
0db4b326 ME |
1400 | else if (reg2 == REG_SHR) |
1401 | immed = opcode->immval_mask | REG_SHR_MASK; | |
1402 | else if (reg2 == REG_SLR) | |
1403 | immed = opcode->immval_mask | REG_SLR_MASK; | |
7ba29e2a | 1404 | else if (reg2 >= (REG_PVR+MIN_PVR_REGNUM) && reg2 <= (REG_PVR+MAX_PVR_REGNUM)) |
c7d6f518 | 1405 | immed = opcode->immval_mask | REG_PVR_MASK | reg2; |
7ba29e2a NC |
1406 | else |
1407 | as_fatal (_("invalid value for special purpose register")); | |
1408 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1409 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1410 | output = frag_more (isize); |
1411 | break; | |
1412 | ||
1413 | case INST_TYPE_SPECIAL_R1: | |
1414 | if (strcmp (op_end, "")) | |
1415 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1416 | else | |
1417 | { | |
1418 | as_fatal (_("Error in statement syntax")); | |
1419 | reg1 = 0; | |
1420 | } | |
1421 | if (strcmp (op_end, "")) | |
1422 | op_end = parse_reg (op_end + 1, ®2); /* Get r1. */ | |
1423 | else | |
1424 | { | |
1425 | as_fatal (_("Error in statement syntax")); | |
1426 | reg2 = 0; | |
1427 | } | |
1428 | ||
1429 | if (reg1 == REG_MSR) | |
c7d6f518 | 1430 | immed = opcode->immval_mask | REG_MSR_MASK; |
7ba29e2a | 1431 | else if (reg1 == REG_PC) |
c7d6f518 | 1432 | immed = opcode->immval_mask | REG_PC_MASK; |
7ba29e2a | 1433 | else if (reg1 == REG_EAR) |
c7d6f518 | 1434 | immed = opcode->immval_mask | REG_EAR_MASK; |
7ba29e2a | 1435 | else if (reg1 == REG_ESR) |
c7d6f518 | 1436 | immed = opcode->immval_mask | REG_ESR_MASK; |
7ba29e2a | 1437 | else if (reg1 == REG_FSR) |
c7d6f518 | 1438 | immed = opcode->immval_mask | REG_FSR_MASK; |
7ba29e2a | 1439 | else if (reg1 == REG_BTR) |
c7d6f518 | 1440 | immed = opcode->immval_mask | REG_BTR_MASK; |
7ba29e2a | 1441 | else if (reg1 == REG_EDR) |
c7d6f518 | 1442 | immed = opcode->immval_mask | REG_EDR_MASK; |
7ba29e2a | 1443 | else if (reg1 == REG_PID) |
c7d6f518 | 1444 | immed = opcode->immval_mask | REG_PID_MASK; |
7ba29e2a | 1445 | else if (reg1 == REG_ZPR) |
c7d6f518 | 1446 | immed = opcode->immval_mask | REG_ZPR_MASK; |
7ba29e2a | 1447 | else if (reg1 == REG_TLBX) |
c7d6f518 | 1448 | immed = opcode->immval_mask | REG_TLBX_MASK; |
7ba29e2a | 1449 | else if (reg1 == REG_TLBLO) |
c7d6f518 | 1450 | immed = opcode->immval_mask | REG_TLBLO_MASK; |
7ba29e2a | 1451 | else if (reg1 == REG_TLBHI) |
c7d6f518 | 1452 | immed = opcode->immval_mask | REG_TLBHI_MASK; |
7ba29e2a | 1453 | else if (reg1 == REG_TLBSX) |
c7d6f518 | 1454 | immed = opcode->immval_mask | REG_TLBSX_MASK; |
0db4b326 ME |
1455 | else if (reg1 == REG_SHR) |
1456 | immed = opcode->immval_mask | REG_SHR_MASK; | |
1457 | else if (reg1 == REG_SLR) | |
1458 | immed = opcode->immval_mask | REG_SLR_MASK; | |
7ba29e2a NC |
1459 | else |
1460 | as_fatal (_("invalid value for special purpose register")); | |
1461 | inst |= (reg2 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1462 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1463 | output = frag_more (isize); |
1464 | break; | |
1465 | ||
94dda8b7 | 1466 | case INST_TYPE_R1_R2_SPECIAL: |
7ba29e2a | 1467 | if (strcmp (op_end, "")) |
94dda8b7 | 1468 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ |
7ba29e2a NC |
1469 | else |
1470 | { | |
1471 | as_fatal (_("Error in statement syntax")); | |
1472 | reg1 = 0; | |
1473 | } | |
1474 | if (strcmp (op_end, "")) | |
94dda8b7 | 1475 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ |
7ba29e2a NC |
1476 | else |
1477 | { | |
1478 | as_fatal (_("Error in statement syntax")); | |
1479 | reg2 =0; | |
1480 | } | |
1481 | ||
1482 | /* Check for spl registers. */ | |
1483 | if (check_spl_reg (®1)) | |
1484 | as_fatal (_("Cannot use special register with this instruction")); | |
1485 | if (check_spl_reg (®2)) | |
1486 | as_fatal (_("Cannot use special register with this instruction")); | |
1487 | ||
1488 | /* insn wic ra, rb => wic ra, ra, rb. */ | |
7ba29e2a NC |
1489 | inst |= (reg1 << RA_LOW) & RA_MASK; |
1490 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1491 | ||
1492 | output = frag_more (isize); | |
1493 | break; | |
1494 | ||
1495 | case INST_TYPE_RD_R2: | |
1496 | if (strcmp (op_end, "")) | |
1497 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1498 | else | |
1499 | { | |
1500 | as_fatal (_("Error in statement syntax")); | |
1501 | reg1 = 0; | |
1502 | } | |
1503 | if (strcmp (op_end, "")) | |
1504 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ | |
1505 | else | |
1506 | { | |
1507 | as_fatal (_("Error in statement syntax")); | |
1508 | reg2 = 0; | |
1509 | } | |
1510 | ||
1511 | /* Check for spl registers. */ | |
1512 | if (check_spl_reg (®1)) | |
1513 | as_fatal (_("Cannot use special register with this instruction")); | |
1514 | if (check_spl_reg (®2)) | |
1515 | as_fatal (_("Cannot use special register with this instruction")); | |
1516 | ||
1517 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
1518 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1519 | output = frag_more (isize); | |
1520 | break; | |
1521 | ||
1522 | case INST_TYPE_R1_IMM: | |
1523 | if (strcmp (op_end, "")) | |
1524 | op_end = parse_reg (op_end + 1, ®1); /* Get r1. */ | |
1525 | else | |
1526 | { | |
1527 | as_fatal (_("Error in statement syntax")); | |
1528 | reg1 = 0; | |
1529 | } | |
1530 | if (strcmp (op_end, "")) | |
1531 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1532 | else | |
1533 | as_fatal (_("Error in statement syntax")); | |
1534 | ||
1535 | /* Check for spl registers. */ | |
1536 | if (check_spl_reg (®1)) | |
1537 | as_fatal (_("Cannot use special register with this instruction")); | |
1538 | ||
1539 | if (exp.X_op != O_constant) | |
1540 | { | |
1541 | char *opc = NULL; | |
1542 | relax_substateT subtype; | |
1543 | ||
69b06cc8 ME |
1544 | if (exp.X_md != 0) |
1545 | subtype = get_imm_otype(exp.X_md); | |
7ba29e2a NC |
1546 | else |
1547 | subtype = opcode->inst_offset_type; | |
69b06cc8 | 1548 | |
7ba29e2a NC |
1549 | output = frag_var (rs_machine_dependent, |
1550 | isize * 2, /* maxm of 2 words. */ | |
1551 | isize, /* minm of 1 word. */ | |
1552 | subtype, /* PC-relative or not. */ | |
1553 | exp.X_add_symbol, | |
1554 | exp.X_add_number, | |
1555 | opc); | |
c7d6f518 | 1556 | immed = 0; |
7ba29e2a NC |
1557 | } |
1558 | else | |
1559 | { | |
1560 | output = frag_more (isize); | |
c7d6f518 | 1561 | immed = exp.X_add_number; |
7ba29e2a NC |
1562 | } |
1563 | ||
c7d6f518 | 1564 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1565 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1566 | { | |
1567 | /* Needs an immediate inst. */ | |
fe0e921f AM |
1568 | opcode1 |
1569 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, | |
1570 | "imm"); | |
7ba29e2a NC |
1571 | if (opcode1 == NULL) |
1572 | { | |
1573 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1574 | return; | |
1575 | } | |
1576 | ||
1577 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1578 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1579 | output[0] = INST_BYTE0 (inst1); |
1580 | output[1] = INST_BYTE1 (inst1); | |
1581 | output[2] = INST_BYTE2 (inst1); | |
1582 | output[3] = INST_BYTE3 (inst1); | |
1583 | output = frag_more (isize); | |
1584 | } | |
1585 | ||
1586 | inst |= (reg1 << RA_LOW) & RA_MASK; | |
c7d6f518 | 1587 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1588 | break; |
1589 | ||
1590 | case INST_TYPE_RD_IMM: | |
1591 | if (strcmp (op_end, "")) | |
1592 | op_end = parse_reg (op_end + 1, ®1); /* Get rd. */ | |
1593 | else | |
1594 | { | |
1595 | as_fatal (_("Error in statement syntax")); | |
1596 | reg1 = 0; | |
1597 | } | |
1598 | if (strcmp (op_end, "")) | |
1599 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1600 | else | |
1601 | as_fatal (_("Error in statement syntax")); | |
1602 | ||
1603 | /* Check for spl registers. */ | |
1604 | if (check_spl_reg (®1)) | |
1605 | as_fatal (_("Cannot use special register with this instruction")); | |
1606 | ||
1607 | if (exp.X_op != O_constant) | |
1608 | { | |
1609 | char *opc = NULL; | |
1610 | relax_substateT subtype; | |
1611 | ||
69b06cc8 ME |
1612 | if (exp.X_md != 0) |
1613 | subtype = get_imm_otype(exp.X_md); | |
1614 | else | |
7ba29e2a | 1615 | subtype = opcode->inst_offset_type; |
69b06cc8 | 1616 | |
7ba29e2a NC |
1617 | output = frag_var (rs_machine_dependent, |
1618 | isize * 2, /* maxm of 2 words. */ | |
1619 | isize, /* minm of 1 word. */ | |
1620 | subtype, /* PC-relative or not. */ | |
1621 | exp.X_add_symbol, | |
1622 | exp.X_add_number, | |
1623 | opc); | |
c7d6f518 | 1624 | immed = 0; |
7ba29e2a NC |
1625 | } |
1626 | else | |
1627 | { | |
1628 | output = frag_more (isize); | |
c7d6f518 | 1629 | immed = exp.X_add_number; |
7ba29e2a NC |
1630 | } |
1631 | ||
c7d6f518 | 1632 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1633 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1634 | { | |
1635 | /* Needs an immediate inst. */ | |
fe0e921f AM |
1636 | opcode1 |
1637 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, | |
1638 | "imm"); | |
7ba29e2a NC |
1639 | if (opcode1 == NULL) |
1640 | { | |
1641 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1642 | return; | |
1643 | } | |
1644 | ||
1645 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1646 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1647 | output[0] = INST_BYTE0 (inst1); |
1648 | output[1] = INST_BYTE1 (inst1); | |
1649 | output[2] = INST_BYTE2 (inst1); | |
1650 | output[3] = INST_BYTE3 (inst1); | |
1651 | output = frag_more (isize); | |
1652 | } | |
1653 | ||
1654 | inst |= (reg1 << RD_LOW) & RD_MASK; | |
c7d6f518 | 1655 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1656 | break; |
1657 | ||
1658 | case INST_TYPE_R2: | |
1659 | if (strcmp (op_end, "")) | |
1660 | op_end = parse_reg (op_end + 1, ®2); /* Get r2. */ | |
1661 | else | |
1662 | { | |
1663 | as_fatal (_("Error in statement syntax")); | |
1664 | reg2 = 0; | |
1665 | } | |
1666 | ||
1667 | /* Check for spl registers. */ | |
1668 | if (check_spl_reg (®2)) | |
1669 | as_fatal (_("Cannot use special register with this instruction")); | |
1670 | ||
1671 | inst |= (reg2 << RB_LOW) & RB_MASK; | |
1672 | output = frag_more (isize); | |
1673 | break; | |
1674 | ||
1675 | case INST_TYPE_IMM: | |
1676 | if (streq (name, "imm")) | |
1677 | as_fatal (_("An IMM instruction should not be present in the .s file")); | |
1678 | ||
1679 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM, MAX_IMM); | |
1680 | ||
1681 | if (exp.X_op != O_constant) | |
1682 | { | |
1683 | char *opc = NULL; | |
1684 | relax_substateT subtype; | |
1685 | ||
69b06cc8 ME |
1686 | if (exp.X_md != 0) |
1687 | subtype = get_imm_otype(exp.X_md); | |
1688 | else | |
1689 | subtype = opcode->inst_offset_type; | |
1690 | ||
7ba29e2a NC |
1691 | output = frag_var (rs_machine_dependent, |
1692 | isize * 2, /* maxm of 2 words. */ | |
1693 | isize, /* minm of 1 word. */ | |
1694 | subtype, /* PC-relative or not. */ | |
1695 | exp.X_add_symbol, | |
1696 | exp.X_add_number, | |
1697 | opc); | |
c7d6f518 | 1698 | immed = 0; |
7ba29e2a NC |
1699 | } |
1700 | else | |
1701 | { | |
1702 | output = frag_more (isize); | |
c7d6f518 | 1703 | immed = exp.X_add_number; |
7ba29e2a NC |
1704 | } |
1705 | ||
1706 | ||
c7d6f518 | 1707 | temp = immed & 0xFFFF8000; |
7ba29e2a NC |
1708 | if ((temp != 0) && (temp != 0xFFFF8000)) |
1709 | { | |
1710 | /* Needs an immediate inst. */ | |
fe0e921f AM |
1711 | opcode1 |
1712 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, | |
1713 | "imm"); | |
7ba29e2a NC |
1714 | if (opcode1 == NULL) |
1715 | { | |
1716 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
1717 | return; | |
1718 | } | |
1719 | ||
1720 | inst1 = opcode1->bit_sequence; | |
c7d6f518 | 1721 | inst1 |= ((immed & 0xFFFF0000) >> 16) & IMM_MASK; |
7ba29e2a NC |
1722 | output[0] = INST_BYTE0 (inst1); |
1723 | output[1] = INST_BYTE1 (inst1); | |
1724 | output[2] = INST_BYTE2 (inst1); | |
1725 | output[3] = INST_BYTE3 (inst1); | |
1726 | output = frag_more (isize); | |
1727 | } | |
c7d6f518 | 1728 | inst |= (immed << IMM_LOW) & IMM_MASK; |
7ba29e2a NC |
1729 | break; |
1730 | ||
1731 | case INST_TYPE_NONE: | |
1732 | output = frag_more (isize); | |
1733 | break; | |
1734 | ||
d3da7741 ME |
1735 | case INST_TYPE_IMM5: |
1736 | if (strcmp(op_end, "")) | |
1737 | op_end = parse_imm (op_end + 1, & exp, MIN_IMM5, MAX_IMM5); | |
1738 | else | |
1739 | as_fatal(_("Error in statement syntax")); | |
1740 | if (exp.X_op != O_constant) { | |
1741 | as_warn(_("Symbol used as immediate for mbar instruction")); | |
1742 | } else { | |
1743 | output = frag_more (isize); | |
1744 | immed = exp.X_add_number; | |
1745 | } | |
1746 | if (immed != (immed % 32)) { | |
1747 | as_warn(_("Immediate value for mbar > 32. using <value %% 32>")); | |
1748 | immed = immed % 32; | |
1749 | } | |
1750 | inst |= (immed << IMM_MBAR); | |
1751 | break; | |
1752 | ||
7ba29e2a NC |
1753 | default: |
1754 | as_fatal (_("unimplemented opcode \"%s\""), name); | |
1755 | } | |
1756 | ||
1757 | /* Drop whitespace after all the operands have been parsed. */ | |
e23c5ac0 | 1758 | while (ISSPACE (* op_end)) |
7ba29e2a NC |
1759 | op_end ++; |
1760 | ||
1761 | /* Give warning message if the insn has more operands than required. */ | |
1762 | if (strcmp (op_end, opcode->name) && strcmp (op_end, "")) | |
1763 | as_warn (_("ignoring operands: %s "), op_end); | |
1764 | ||
1765 | output[0] = INST_BYTE0 (inst); | |
1766 | output[1] = INST_BYTE1 (inst); | |
1767 | output[2] = INST_BYTE2 (inst); | |
1768 | output[3] = INST_BYTE3 (inst); | |
1769 | ||
1770 | #ifdef OBJ_ELF | |
1771 | dwarf2_emit_insn (4); | |
1772 | #endif | |
1773 | } | |
1774 | ||
1775 | symbolS * | |
1776 | md_undefined_symbol (char * name ATTRIBUTE_UNUSED) | |
1777 | { | |
1778 | return NULL; | |
1779 | } | |
1780 | ||
7ba29e2a NC |
1781 | /* Turn a string in input_line_pointer into a floating point constant of type |
1782 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
1783 | emitted is stored in *sizeP. An error message is returned, or NULL on OK.*/ | |
3076e594 | 1784 | |
6d4af3c2 | 1785 | const char * |
7ba29e2a NC |
1786 | md_atof (int type, char * litP, int * sizeP) |
1787 | { | |
1788 | int prec; | |
1789 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1790 | int i; | |
1791 | char * t; | |
1792 | ||
1793 | switch (type) | |
1794 | { | |
1795 | case 'f': | |
1796 | case 'F': | |
1797 | case 's': | |
1798 | case 'S': | |
1799 | prec = 2; | |
1800 | break; | |
1801 | ||
1802 | case 'd': | |
1803 | case 'D': | |
1804 | case 'r': | |
1805 | case 'R': | |
1806 | prec = 4; | |
1807 | break; | |
1808 | ||
1809 | case 'x': | |
1810 | case 'X': | |
1811 | prec = 6; | |
1812 | break; | |
1813 | ||
1814 | case 'p': | |
1815 | case 'P': | |
1816 | prec = 6; | |
1817 | break; | |
1818 | ||
1819 | default: | |
1820 | *sizeP = 0; | |
1821 | return _("Bad call to MD_NTOF()"); | |
1822 | } | |
1823 | ||
1824 | t = atof_ieee (input_line_pointer, type, words); | |
1825 | ||
1826 | if (t) | |
1827 | input_line_pointer = t; | |
1828 | ||
1829 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1830 | ||
1831 | if (! target_big_endian) | |
1832 | { | |
1833 | for (i = prec - 1; i >= 0; i--) | |
1834 | { | |
1835 | md_number_to_chars (litP, (valueT) words[i], | |
1836 | sizeof (LITTLENUM_TYPE)); | |
1837 | litP += sizeof (LITTLENUM_TYPE); | |
1838 | } | |
1839 | } | |
1840 | else | |
1841 | for (i = 0; i < prec; i++) | |
1842 | { | |
1843 | md_number_to_chars (litP, (valueT) words[i], | |
1844 | sizeof (LITTLENUM_TYPE)); | |
1845 | litP += sizeof (LITTLENUM_TYPE); | |
1846 | } | |
1847 | ||
1848 | return NULL; | |
1849 | } | |
1850 | \f | |
1851 | const char * md_shortopts = ""; | |
1852 | ||
1853 | struct option md_longopts[] = | |
1854 | { | |
f23200ad ME |
1855 | {"EB", no_argument, NULL, OPTION_EB}, |
1856 | {"EL", no_argument, NULL, OPTION_EL}, | |
7ba29e2a NC |
1857 | { NULL, no_argument, NULL, 0} |
1858 | }; | |
1859 | ||
1860 | size_t md_longopts_size = sizeof (md_longopts); | |
1861 | ||
1862 | int md_short_jump_size; | |
1863 | ||
1864 | void | |
1865 | md_create_short_jump (char * ptr ATTRIBUTE_UNUSED, | |
1866 | addressT from_Nddr ATTRIBUTE_UNUSED, | |
1867 | addressT to_Nddr ATTRIBUTE_UNUSED, | |
1868 | fragS * frag ATTRIBUTE_UNUSED, | |
1869 | symbolS * to_symbol ATTRIBUTE_UNUSED) | |
1870 | { | |
1871 | as_fatal (_("failed sanity check: short_jump")); | |
1872 | } | |
1873 | ||
1874 | void | |
1875 | md_create_long_jump (char * ptr ATTRIBUTE_UNUSED, | |
1876 | addressT from_Nddr ATTRIBUTE_UNUSED, | |
1877 | addressT to_Nddr ATTRIBUTE_UNUSED, | |
1878 | fragS * frag ATTRIBUTE_UNUSED, | |
1879 | symbolS * to_symbol ATTRIBUTE_UNUSED) | |
1880 | { | |
1881 | as_fatal (_("failed sanity check: long_jump")); | |
1882 | } | |
1883 | ||
1884 | /* Called after relaxing, change the frags so they know how big they are. */ | |
1885 | ||
1886 | void | |
1887 | md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, | |
1888 | segT sec ATTRIBUTE_UNUSED, | |
1889 | fragS * fragP) | |
1890 | { | |
1891 | fixS *fixP; | |
1892 | ||
1893 | switch (fragP->fr_subtype) | |
1894 | { | |
1895 | case UNDEFINED_PC_OFFSET: | |
1896 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1897 | fragP->fr_offset, true, BFD_RELOC_64_PCREL); |
7ba29e2a NC |
1898 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1899 | fragP->fr_var = 0; | |
1900 | break; | |
1901 | case DEFINED_ABS_SEGMENT: | |
1902 | if (fragP->fr_symbol == GOT_symbol) | |
1903 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1904 | fragP->fr_offset, true, BFD_RELOC_MICROBLAZE_64_GOTPC); |
7ba29e2a NC |
1905 | else |
1906 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1907 | fragP->fr_offset, false, BFD_RELOC_64); |
7ba29e2a NC |
1908 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1909 | fragP->fr_var = 0; | |
1910 | break; | |
1911 | case DEFINED_RO_SEGMENT: | |
1912 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE, fragP->fr_symbol, | |
5b7c81bd | 1913 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_32_ROSDA); |
7ba29e2a NC |
1914 | fragP->fr_fix += INST_WORD_SIZE; |
1915 | fragP->fr_var = 0; | |
1916 | break; | |
1917 | case DEFINED_RW_SEGMENT: | |
1918 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE, fragP->fr_symbol, | |
5b7c81bd | 1919 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_32_RWSDA); |
7ba29e2a NC |
1920 | fragP->fr_fix += INST_WORD_SIZE; |
1921 | fragP->fr_var = 0; | |
1922 | break; | |
1923 | case DEFINED_PC_OFFSET: | |
1924 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE, fragP->fr_symbol, | |
5b7c81bd | 1925 | fragP->fr_offset, true, BFD_RELOC_MICROBLAZE_32_LO_PCREL); |
7ba29e2a NC |
1926 | fragP->fr_fix += INST_WORD_SIZE; |
1927 | fragP->fr_var = 0; | |
1928 | break; | |
1929 | case LARGE_DEFINED_PC_OFFSET: | |
1930 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1931 | fragP->fr_offset, true, BFD_RELOC_64_PCREL); |
7ba29e2a NC |
1932 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1933 | fragP->fr_var = 0; | |
1934 | break; | |
1935 | case GOT_OFFSET: | |
1936 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1937 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_GOT); |
7ba29e2a NC |
1938 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1939 | fragP->fr_var = 0; | |
1940 | break; | |
3f0a5f17 ME |
1941 | case TEXT_OFFSET: |
1942 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1943 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_TEXTREL); |
3f0a5f17 ME |
1944 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1945 | fragP->fr_var = 0; | |
1946 | break; | |
1947 | case TEXT_PC_OFFSET: | |
1948 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1949 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_TEXTPCREL); |
3f0a5f17 ME |
1950 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1951 | fragP->fr_var = 0; | |
1952 | break; | |
7ba29e2a NC |
1953 | case PLT_OFFSET: |
1954 | fixP = fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1955 | fragP->fr_offset, true, BFD_RELOC_MICROBLAZE_64_PLT); |
7ba29e2a | 1956 | /* fixP->fx_plt = 1; */ |
87975d2a | 1957 | (void) fixP; |
7ba29e2a NC |
1958 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1959 | fragP->fr_var = 0; | |
1960 | break; | |
1961 | case GOTOFF_OFFSET: | |
1962 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1963 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_GOTOFF); |
7ba29e2a NC |
1964 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1965 | fragP->fr_var = 0; | |
1966 | break; | |
69b06cc8 ME |
1967 | case TLSGD_OFFSET: |
1968 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1969 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_TLSGD); |
69b06cc8 ME |
1970 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1971 | fragP->fr_var = 0; | |
1972 | break; | |
1973 | case TLSLD_OFFSET: | |
1974 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1975 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_TLSLD); |
69b06cc8 ME |
1976 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1977 | fragP->fr_var = 0; | |
1978 | break; | |
1979 | case TLSDTPREL_OFFSET: | |
1980 | fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, | |
5b7c81bd | 1981 | fragP->fr_offset, false, BFD_RELOC_MICROBLAZE_64_TLSDTPREL); |
69b06cc8 ME |
1982 | fragP->fr_fix += INST_WORD_SIZE * 2; |
1983 | fragP->fr_var = 0; | |
1984 | break; | |
7ba29e2a NC |
1985 | |
1986 | default: | |
1987 | abort (); | |
1988 | } | |
1989 | } | |
1990 | ||
1991 | /* Applies the desired value to the specified location. | |
1992 | Also sets up addends for 'rela' type relocations. */ | |
1993 | void | |
1994 | md_apply_fix (fixS * fixP, | |
1995 | valueT * valp, | |
1996 | segT segment) | |
1997 | { | |
a39d29cd | 1998 | char * buf = fixP->fx_where + &fixP->fx_frag->fr_literal[0]; |
3b4dbbbf | 1999 | const char * file = fixP->fx_file ? fixP->fx_file : _("unknown"); |
7ba29e2a NC |
2000 | const char * symname; |
2001 | /* Note: use offsetT because it is signed, valueT is unsigned. */ | |
2002 | offsetT val = (offsetT) * valp; | |
2003 | int i; | |
2004 | struct op_code_struct * opcode1; | |
2005 | unsigned long inst1; | |
2006 | ||
2007 | symname = fixP->fx_addsy ? S_GET_NAME (fixP->fx_addsy) : _("<unknown>"); | |
2008 | ||
2009 | /* fixP->fx_offset is supposed to be set up correctly for all | |
2010 | symbol relocations. */ | |
2011 | if (fixP->fx_addsy == NULL) | |
2012 | { | |
2013 | if (!fixP->fx_pcrel) | |
2014 | fixP->fx_offset = val; /* Absolute relocation. */ | |
2015 | else | |
2016 | fprintf (stderr, "NULL symbol PC-relative relocation? offset = %08x, val = %08x\n", | |
2017 | (unsigned int) fixP->fx_offset, (unsigned int) val); | |
2018 | } | |
2019 | ||
2020 | /* If we aren't adjusting this fixup to be against the section | |
2021 | symbol, we need to adjust the value. */ | |
2022 | if (fixP->fx_addsy != NULL) | |
2023 | { | |
2024 | if (S_IS_WEAK (fixP->fx_addsy) | |
2025 | || (symbol_used_in_reloc_p (fixP->fx_addsy) | |
fd361982 | 2026 | && (((bfd_section_flags (S_GET_SEGMENT (fixP->fx_addsy)) |
7ba29e2a | 2027 | & SEC_LINK_ONCE) != 0) |
d34049e8 ML |
2028 | || startswith (segment_name (S_GET_SEGMENT (fixP->fx_addsy)), |
2029 | ".gnu.linkonce")))) | |
7ba29e2a NC |
2030 | { |
2031 | val -= S_GET_VALUE (fixP->fx_addsy); | |
2032 | if (val != 0 && ! fixP->fx_pcrel) | |
2033 | { | |
2034 | /* In this case, the bfd_install_relocation routine will | |
2035 | incorrectly add the symbol value back in. We just want | |
2036 | the addend to appear in the object file. | |
2037 | FIXME: If this makes VALUE zero, we're toast. */ | |
2038 | val -= S_GET_VALUE (fixP->fx_addsy); | |
2039 | } | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | /* If the fix is relative to a symbol which is not defined, or not | |
2044 | in the same segment as the fix, we cannot resolve it here. */ | |
2045 | /* fixP->fx_addsy is NULL if valp contains the entire relocation. */ | |
2046 | if (fixP->fx_addsy != NULL | |
2047 | && (!S_IS_DEFINED (fixP->fx_addsy) | |
2048 | || (S_GET_SEGMENT (fixP->fx_addsy) != segment))) | |
2049 | { | |
2050 | fixP->fx_done = 0; | |
2051 | #ifdef OBJ_ELF | |
2052 | /* For ELF we can just return and let the reloc that will be generated | |
2053 | take care of everything. For COFF we still have to insert 'val' | |
2054 | into the insn since the addend field will be ignored. */ | |
2055 | /* return; */ | |
2056 | #endif | |
2057 | } | |
2058 | /* All fixups in the text section must be handled in the linker. */ | |
2059 | else if (segment->flags & SEC_CODE) | |
2060 | fixP->fx_done = 0; | |
2061 | else if (!fixP->fx_pcrel && fixP->fx_addsy != NULL) | |
2062 | fixP->fx_done = 0; | |
2063 | else | |
2064 | fixP->fx_done = 1; | |
2065 | ||
2066 | switch (fixP->fx_r_type) | |
2067 | { | |
2068 | case BFD_RELOC_MICROBLAZE_32_LO: | |
2069 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
2070 | if (target_big_endian) | |
2071 | { | |
2072 | buf[2] |= ((val >> 8) & 0xff); | |
2073 | buf[3] |= (val & 0xff); | |
2074 | } | |
2075 | else | |
2076 | { | |
2077 | buf[1] |= ((val >> 8) & 0xff); | |
2078 | buf[0] |= (val & 0xff); | |
2079 | } | |
2080 | break; | |
2081 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
2082 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
2083 | /* Don't do anything if the symbol is not defined. */ | |
2084 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2085 | { | |
2086 | if (((val & 0xFFFF8000) != 0) && ((val & 0xFFFF8000) != 0xFFFF8000)) | |
2087 | as_bad_where (file, fixP->fx_line, | |
2088 | _("pcrel for branch to %s too far (0x%x)"), | |
2089 | symname, (int) val); | |
2090 | if (target_big_endian) | |
2091 | { | |
2092 | buf[2] |= ((val >> 8) & 0xff); | |
2093 | buf[3] |= (val & 0xff); | |
2094 | } | |
2095 | else | |
2096 | { | |
2097 | buf[1] |= ((val >> 8) & 0xff); | |
2098 | buf[0] |= (val & 0xff); | |
2099 | } | |
2100 | } | |
2101 | break; | |
2102 | case BFD_RELOC_32: | |
2103 | case BFD_RELOC_RVA: | |
2104 | case BFD_RELOC_32_PCREL: | |
2105 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
2106 | /* Don't do anything if the symbol is not defined. */ | |
2107 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2108 | { | |
2109 | if (target_big_endian) | |
2110 | { | |
2111 | buf[0] |= ((val >> 24) & 0xff); | |
2112 | buf[1] |= ((val >> 16) & 0xff); | |
2113 | buf[2] |= ((val >> 8) & 0xff); | |
2114 | buf[3] |= (val & 0xff); | |
2115 | } | |
2116 | else | |
2117 | { | |
2118 | buf[3] |= ((val >> 24) & 0xff); | |
2119 | buf[2] |= ((val >> 16) & 0xff); | |
2120 | buf[1] |= ((val >> 8) & 0xff); | |
2121 | buf[0] |= (val & 0xff); | |
2122 | } | |
2123 | } | |
2124 | break; | |
2125 | case BFD_RELOC_64_PCREL: | |
2126 | case BFD_RELOC_64: | |
3f0a5f17 | 2127 | case BFD_RELOC_MICROBLAZE_64_TEXTREL: |
7ba29e2a NC |
2128 | /* Add an imm instruction. First save the current instruction. */ |
2129 | for (i = 0; i < INST_WORD_SIZE; i++) | |
2130 | buf[i + INST_WORD_SIZE] = buf[i]; | |
2131 | ||
2132 | /* Generate the imm instruction. */ | |
fe0e921f AM |
2133 | opcode1 |
2134 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, "imm"); | |
7ba29e2a NC |
2135 | if (opcode1 == NULL) |
2136 | { | |
2137 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
2138 | return; | |
2139 | } | |
2140 | ||
2141 | inst1 = opcode1->bit_sequence; | |
2142 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2143 | inst1 |= ((val & 0xFFFF0000) >> 16) & IMM_MASK; | |
2144 | ||
2145 | buf[0] = INST_BYTE0 (inst1); | |
2146 | buf[1] = INST_BYTE1 (inst1); | |
2147 | buf[2] = INST_BYTE2 (inst1); | |
2148 | buf[3] = INST_BYTE3 (inst1); | |
2149 | ||
2150 | /* Add the value only if the symbol is defined. */ | |
2151 | if (fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) | |
2152 | { | |
2153 | if (target_big_endian) | |
2154 | { | |
2155 | buf[6] |= ((val >> 8) & 0xff); | |
2156 | buf[7] |= (val & 0xff); | |
2157 | } | |
2158 | else | |
2159 | { | |
2160 | buf[5] |= ((val >> 8) & 0xff); | |
2161 | buf[4] |= (val & 0xff); | |
2162 | } | |
2163 | } | |
2164 | break; | |
2165 | ||
69b06cc8 ME |
2166 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: |
2167 | case BFD_RELOC_MICROBLAZE_64_TLSGD: | |
2168 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
2169 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1a0670f3 | 2170 | /* Fall through. */ |
69b06cc8 | 2171 | |
7ba29e2a NC |
2172 | case BFD_RELOC_MICROBLAZE_64_GOTPC: |
2173 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
2174 | case BFD_RELOC_MICROBLAZE_64_PLT: | |
2175 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
3f0a5f17 | 2176 | case BFD_RELOC_MICROBLAZE_64_TEXTPCREL: |
7ba29e2a NC |
2177 | /* Add an imm instruction. First save the current instruction. */ |
2178 | for (i = 0; i < INST_WORD_SIZE; i++) | |
2179 | buf[i + INST_WORD_SIZE] = buf[i]; | |
2180 | ||
2181 | /* Generate the imm instruction. */ | |
fe0e921f AM |
2182 | opcode1 |
2183 | = (struct op_code_struct *) str_hash_find (opcode_hash_control, "imm"); | |
7ba29e2a NC |
2184 | if (opcode1 == NULL) |
2185 | { | |
2186 | as_bad (_("unknown opcode \"%s\""), "imm"); | |
2187 | return; | |
2188 | } | |
2189 | ||
2190 | inst1 = opcode1->bit_sequence; | |
2191 | ||
2192 | /* We can fixup call to a defined non-global address | |
2193 | within the same section only. */ | |
2194 | buf[0] = INST_BYTE0 (inst1); | |
2195 | buf[1] = INST_BYTE1 (inst1); | |
2196 | buf[2] = INST_BYTE2 (inst1); | |
2197 | buf[3] = INST_BYTE3 (inst1); | |
2198 | return; | |
2199 | ||
2200 | default: | |
2201 | break; | |
2202 | } | |
2203 | ||
2204 | if (fixP->fx_addsy == NULL) | |
2205 | { | |
2206 | /* This fixup has been resolved. Create a reloc in case the linker | |
2207 | moves code around due to relaxing. */ | |
2208 | if (fixP->fx_r_type == BFD_RELOC_64_PCREL) | |
2209 | fixP->fx_r_type = BFD_RELOC_MICROBLAZE_64_NONE; | |
2210 | else | |
2211 | fixP->fx_r_type = BFD_RELOC_NONE; | |
2212 | fixP->fx_addsy = section_symbol (absolute_section); | |
2213 | } | |
2214 | return; | |
2215 | } | |
2216 | ||
2217 | void | |
2218 | md_operand (expressionS * expressionP) | |
2219 | { | |
2220 | /* Ignore leading hash symbol, if present. */ | |
2221 | if (*input_line_pointer == '#') | |
2222 | { | |
2223 | input_line_pointer ++; | |
2224 | expression (expressionP); | |
2225 | } | |
2226 | } | |
2227 | ||
2228 | /* Called just before address relaxation, return the length | |
2229 | by which a fragment must grow to reach it's destination. */ | |
2230 | ||
2231 | int | |
2232 | md_estimate_size_before_relax (fragS * fragP, | |
2233 | segT segment_type) | |
2234 | { | |
2235 | sbss_segment = bfd_get_section_by_name (stdoutput, ".sbss"); | |
2236 | sbss2_segment = bfd_get_section_by_name (stdoutput, ".sbss2"); | |
2237 | sdata_segment = bfd_get_section_by_name (stdoutput, ".sdata"); | |
2238 | sdata2_segment = bfd_get_section_by_name (stdoutput, ".sdata2"); | |
2239 | ||
2240 | switch (fragP->fr_subtype) | |
2241 | { | |
2242 | case INST_PC_OFFSET: | |
2243 | /* Used to be a PC-relative branch. */ | |
2244 | if (!fragP->fr_symbol) | |
2245 | { | |
2246 | /* We know the abs value: Should never happen. */ | |
2247 | as_bad (_("Absolute PC-relative value in relaxation code. Assembler error.....")); | |
2248 | abort (); | |
2249 | } | |
28ad2e2d ME |
2250 | else if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type && |
2251 | !S_IS_WEAK (fragP->fr_symbol)) | |
7ba29e2a NC |
2252 | { |
2253 | fragP->fr_subtype = DEFINED_PC_OFFSET; | |
2254 | /* Don't know now whether we need an imm instruction. */ | |
2255 | fragP->fr_var = INST_WORD_SIZE; | |
2256 | } | |
2257 | else if (S_IS_DEFINED (fragP->fr_symbol) | |
2258 | && (((S_GET_SEGMENT (fragP->fr_symbol))->flags & SEC_CODE) == 0)) | |
2259 | { | |
2260 | /* Cannot have a PC-relative branch to a diff segment. */ | |
2261 | as_bad (_("PC relative branch to label %s which is not in the instruction space"), | |
2262 | S_GET_NAME (fragP->fr_symbol)); | |
2263 | fragP->fr_subtype = UNDEFINED_PC_OFFSET; | |
2264 | fragP->fr_var = INST_WORD_SIZE*2; | |
2265 | } | |
2266 | else | |
2267 | { | |
2268 | fragP->fr_subtype = UNDEFINED_PC_OFFSET; | |
2269 | fragP->fr_var = INST_WORD_SIZE*2; | |
2270 | } | |
2271 | break; | |
2272 | ||
2273 | case INST_NO_OFFSET: | |
3f0a5f17 | 2274 | case TEXT_OFFSET: |
7ba29e2a NC |
2275 | /* Used to be a reference to somewhere which was unknown. */ |
2276 | if (fragP->fr_symbol) | |
2277 | { | |
2278 | if (fragP->fr_opcode == NULL) | |
2279 | { | |
3f0a5f17 ME |
2280 | /* Used as an absolute value. */ |
2281 | if (fragP->fr_subtype == INST_NO_OFFSET) | |
2282 | fragP->fr_subtype = DEFINED_ABS_SEGMENT; | |
2283 | /* Variable part does not change. */ | |
2284 | fragP->fr_var = INST_WORD_SIZE*2; | |
2285 | } | |
7ba29e2a NC |
2286 | else if (streq (fragP->fr_opcode, str_microblaze_ro_anchor)) |
2287 | { | |
2288 | /* It is accessed using the small data read only anchor. */ | |
45dfa85a | 2289 | if ((S_GET_SEGMENT (fragP->fr_symbol) == bfd_com_section_ptr) |
7ba29e2a NC |
2290 | || (S_GET_SEGMENT (fragP->fr_symbol) == sdata2_segment) |
2291 | || (S_GET_SEGMENT (fragP->fr_symbol) == sbss2_segment) | |
2292 | || (! S_IS_DEFINED (fragP->fr_symbol))) | |
2293 | { | |
2294 | fragP->fr_subtype = DEFINED_RO_SEGMENT; | |
2295 | fragP->fr_var = INST_WORD_SIZE; | |
2296 | } | |
2297 | else | |
2298 | { | |
2299 | /* Variable not in small data read only segment accessed | |
2300 | using small data read only anchor. */ | |
3b4dbbbf | 2301 | const char *file = fragP->fr_file ? fragP->fr_file : _("unknown"); |
7ba29e2a NC |
2302 | |
2303 | as_bad_where (file, fragP->fr_line, | |
2304 | _("Variable is accessed using small data read " | |
2305 | "only anchor, but it is not in the small data " | |
2306 | "read only section")); | |
2307 | fragP->fr_subtype = DEFINED_RO_SEGMENT; | |
2308 | fragP->fr_var = INST_WORD_SIZE; | |
2309 | } | |
2310 | } | |
2311 | else if (streq (fragP->fr_opcode, str_microblaze_rw_anchor)) | |
2312 | { | |
45dfa85a | 2313 | if ((S_GET_SEGMENT (fragP->fr_symbol) == bfd_com_section_ptr) |
7ba29e2a NC |
2314 | || (S_GET_SEGMENT (fragP->fr_symbol) == sdata_segment) |
2315 | || (S_GET_SEGMENT (fragP->fr_symbol) == sbss_segment) | |
2316 | || (!S_IS_DEFINED (fragP->fr_symbol))) | |
2317 | { | |
2318 | /* It is accessed using the small data read write anchor. */ | |
2319 | fragP->fr_subtype = DEFINED_RW_SEGMENT; | |
2320 | fragP->fr_var = INST_WORD_SIZE; | |
2321 | } | |
2322 | else | |
2323 | { | |
3b4dbbbf | 2324 | const char *file = fragP->fr_file ? fragP->fr_file : _("unknown"); |
7ba29e2a NC |
2325 | |
2326 | as_bad_where (file, fragP->fr_line, | |
2327 | _("Variable is accessed using small data read " | |
2328 | "write anchor, but it is not in the small data " | |
2329 | "read write section")); | |
2330 | fragP->fr_subtype = DEFINED_RW_SEGMENT; | |
2331 | fragP->fr_var = INST_WORD_SIZE; | |
2332 | } | |
2333 | } | |
2334 | else | |
2335 | { | |
2336 | as_bad (_("Incorrect fr_opcode value in frag. Internal error.....")); | |
2337 | abort (); | |
2338 | } | |
2339 | } | |
2340 | else | |
2341 | { | |
2342 | /* We know the abs value: Should never happen. */ | |
2343 | as_bad (_("Absolute value in relaxation code. Assembler error.....")); | |
2344 | abort (); | |
2345 | } | |
2346 | break; | |
2347 | ||
2348 | case UNDEFINED_PC_OFFSET: | |
2349 | case LARGE_DEFINED_PC_OFFSET: | |
2350 | case DEFINED_ABS_SEGMENT: | |
2351 | case GOT_OFFSET: | |
2352 | case PLT_OFFSET: | |
2353 | case GOTOFF_OFFSET: | |
3f0a5f17 | 2354 | case TEXT_PC_OFFSET: |
69b06cc8 ME |
2355 | case TLSGD_OFFSET: |
2356 | case TLSLD_OFFSET: | |
2357 | case TLSTPREL_OFFSET: | |
2358 | case TLSDTPREL_OFFSET: | |
7ba29e2a NC |
2359 | fragP->fr_var = INST_WORD_SIZE*2; |
2360 | break; | |
2361 | case DEFINED_RO_SEGMENT: | |
2362 | case DEFINED_RW_SEGMENT: | |
2363 | case DEFINED_PC_OFFSET: | |
69b06cc8 | 2364 | case TLSDTPMOD_OFFSET: |
7ba29e2a NC |
2365 | fragP->fr_var = INST_WORD_SIZE; |
2366 | break; | |
2367 | default: | |
2368 | abort (); | |
2369 | } | |
2370 | ||
2371 | return fragP->fr_var; | |
2372 | } | |
2373 | ||
2374 | /* Put number into target byte order. */ | |
2375 | ||
2376 | void | |
2377 | md_number_to_chars (char * ptr, valueT use, int nbytes) | |
2378 | { | |
2379 | if (target_big_endian) | |
2380 | number_to_chars_bigendian (ptr, use, nbytes); | |
2381 | else | |
2382 | number_to_chars_littleendian (ptr, use, nbytes); | |
2383 | } | |
2384 | ||
2385 | /* Round up a section size to the appropriate boundary. */ | |
2386 | ||
2387 | valueT | |
2388 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) | |
2389 | { | |
2390 | return size; /* Byte alignment is fine. */ | |
2391 | } | |
2392 | ||
2393 | ||
2394 | /* The location from which a PC relative jump should be calculated, | |
2395 | given a PC relative reloc. */ | |
2396 | ||
2397 | long | |
2398 | md_pcrel_from_section (fixS * fixp, segT sec ATTRIBUTE_UNUSED) | |
2399 | { | |
2400 | #ifdef OBJ_ELF | |
2401 | /* If the symbol is undefined or defined in another section | |
2402 | we leave the add number alone for the linker to fix it later. | |
2403 | Only account for the PC pre-bump (No PC-pre-bump on the Microblaze). */ | |
2404 | ||
2405 | if (fixp->fx_addsy != (symbolS *) NULL | |
2406 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
2407 | || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) | |
2408 | return 0; | |
2409 | else | |
2410 | { | |
2411 | /* The case where we are going to resolve things... */ | |
2412 | if (fixp->fx_r_type == BFD_RELOC_64_PCREL) | |
2413 | return fixp->fx_where + fixp->fx_frag->fr_address + INST_WORD_SIZE; | |
2414 | else | |
2415 | return fixp->fx_where + fixp->fx_frag->fr_address; | |
2416 | } | |
2417 | #endif | |
2418 | } | |
2419 | ||
2420 | ||
2421 | #define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) | |
2422 | #define MAP(SZ,PCREL,TYPE) case F (SZ, PCREL): code = (TYPE); break | |
2423 | ||
2424 | arelent * | |
2425 | tc_gen_reloc (asection * section ATTRIBUTE_UNUSED, fixS * fixp) | |
2426 | { | |
2427 | arelent * rel; | |
2428 | bfd_reloc_code_real_type code; | |
2429 | ||
2430 | switch (fixp->fx_r_type) | |
2431 | { | |
2432 | case BFD_RELOC_NONE: | |
2433 | case BFD_RELOC_MICROBLAZE_64_NONE: | |
2434 | case BFD_RELOC_32: | |
2435 | case BFD_RELOC_MICROBLAZE_32_LO: | |
2436 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
2437 | case BFD_RELOC_RVA: | |
2438 | case BFD_RELOC_64: | |
2439 | case BFD_RELOC_64_PCREL: | |
2440 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
2441 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
2442 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
2443 | case BFD_RELOC_MICROBLAZE_64_GOTPC: | |
2444 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
2445 | case BFD_RELOC_MICROBLAZE_64_PLT: | |
2446 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
2447 | case BFD_RELOC_MICROBLAZE_32_GOTOFF: | |
69b06cc8 ME |
2448 | case BFD_RELOC_MICROBLAZE_64_TLSGD: |
2449 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
2450 | case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: | |
2451 | case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: | |
2452 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: | |
2453 | case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: | |
2454 | case BFD_RELOC_MICROBLAZE_64_TLSTPREL: | |
3f0a5f17 ME |
2455 | case BFD_RELOC_MICROBLAZE_64_TEXTPCREL: |
2456 | case BFD_RELOC_MICROBLAZE_64_TEXTREL: | |
7ba29e2a NC |
2457 | code = fixp->fx_r_type; |
2458 | break; | |
2459 | ||
2460 | default: | |
2461 | switch (F (fixp->fx_size, fixp->fx_pcrel)) | |
2462 | { | |
2463 | MAP (1, 0, BFD_RELOC_8); | |
2464 | MAP (2, 0, BFD_RELOC_16); | |
2465 | MAP (4, 0, BFD_RELOC_32); | |
2466 | MAP (1, 1, BFD_RELOC_8_PCREL); | |
2467 | MAP (2, 1, BFD_RELOC_16_PCREL); | |
2468 | MAP (4, 1, BFD_RELOC_32_PCREL); | |
2469 | default: | |
2470 | code = fixp->fx_r_type; | |
2471 | as_bad (_("Can not do %d byte %srelocation"), | |
2472 | fixp->fx_size, | |
33eaf5de | 2473 | fixp->fx_pcrel ? _("pc-relative ") : ""); |
7ba29e2a NC |
2474 | } |
2475 | break; | |
2476 | } | |
2477 | ||
add39d23 TS |
2478 | rel = XNEW (arelent); |
2479 | rel->sym_ptr_ptr = XNEW (asymbol *); | |
7ba29e2a NC |
2480 | |
2481 | if (code == BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM) | |
2482 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy); | |
2483 | else | |
2484 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2485 | ||
2486 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2487 | /* Always pass the addend along! */ | |
2488 | rel->addend = fixp->fx_offset; | |
2489 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); | |
2490 | ||
2491 | if (rel->howto == NULL) | |
2492 | { | |
2493 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
2494 | _("Cannot represent relocation type %s"), | |
2495 | bfd_get_reloc_code_name (code)); | |
2496 | ||
2497 | /* Set howto to a garbage value so that we can keep going. */ | |
2498 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
2499 | gas_assert (rel->howto != NULL); | |
2500 | } | |
2501 | return rel; | |
2502 | } | |
2503 | ||
2504 | int | |
17b9d67d | 2505 | md_parse_option (int c, const char * arg ATTRIBUTE_UNUSED) |
7ba29e2a NC |
2506 | { |
2507 | switch (c) | |
2508 | { | |
f23200ad ME |
2509 | case OPTION_EB: |
2510 | target_big_endian = 1; | |
2511 | break; | |
2512 | case OPTION_EL: | |
2513 | target_big_endian = 0; | |
2514 | break; | |
7ba29e2a NC |
2515 | default: |
2516 | return 0; | |
2517 | } | |
2518 | return 1; | |
2519 | } | |
2520 | ||
2521 | void | |
2522 | md_show_usage (FILE * stream ATTRIBUTE_UNUSED) | |
2523 | { | |
2524 | /* fprintf(stream, _("\ | |
2525 | MicroBlaze options:\n\ | |
2526 | -noSmall Data in the comm and data sections do not go into the small data section\n")); */ | |
2527 | } | |
2528 | ||
2529 | ||
2530 | /* Create a fixup for a cons expression. If parse_cons_expression_microblaze | |
2531 | found a machine specific op in an expression, | |
2532 | then we create relocs accordingly. */ | |
2533 | ||
2534 | void | |
2535 | cons_fix_new_microblaze (fragS * frag, | |
2536 | int where, | |
2537 | int size, | |
62ebcb5c AM |
2538 | expressionS *exp, |
2539 | bfd_reloc_code_real_type r) | |
7ba29e2a | 2540 | { |
7ba29e2a NC |
2541 | if ((exp->X_op == O_subtract) && (exp->X_add_symbol) && |
2542 | (exp->X_op_symbol) && (now_seg != absolute_section) && (size == 4) | |
2543 | && (!S_IS_LOCAL (exp->X_op_symbol))) | |
2544 | r = BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM; | |
2545 | else if (exp->X_md == IMM_GOTOFF && exp->X_op == O_symbol_rva) | |
2546 | { | |
2547 | exp->X_op = O_symbol; | |
2548 | r = BFD_RELOC_MICROBLAZE_32_GOTOFF; | |
2549 | } | |
2550 | else | |
2551 | { | |
2552 | switch (size) | |
2553 | { | |
2554 | case 1: | |
2555 | r = BFD_RELOC_8; | |
2556 | break; | |
2557 | case 2: | |
2558 | r = BFD_RELOC_16; | |
2559 | break; | |
2560 | case 4: | |
2561 | r = BFD_RELOC_32; | |
2562 | break; | |
2563 | case 8: | |
2564 | r = BFD_RELOC_64; | |
2565 | break; | |
2566 | default: | |
2567 | as_bad (_("unsupported BFD relocation size %u"), size); | |
2568 | r = BFD_RELOC_32; | |
2569 | break; | |
2570 | } | |
2571 | } | |
2572 | fix_new_exp (frag, where, size, exp, 0, r); | |
2573 | } |