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a06ea964 NC |
1 | /* tc-aarch64.c -- Assemble for the AArch64 ISA |
2 | ||
2571583a | 3 | Copyright (C) 2009-2017 Free Software Foundation, Inc. |
a06ea964 NC |
4 | Contributed by ARM Ltd. |
5 | ||
6 | This file is part of GAS. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the license, or | |
11 | (at your option) any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; see the file COPYING3. If not, | |
20 | see <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | #include "as.h" | |
23 | #include <limits.h> | |
24 | #include <stdarg.h> | |
25 | #include "bfd_stdint.h" | |
26 | #define NO_RELOC 0 | |
27 | #include "safe-ctype.h" | |
28 | #include "subsegs.h" | |
29 | #include "obstack.h" | |
30 | ||
31 | #ifdef OBJ_ELF | |
32 | #include "elf/aarch64.h" | |
33 | #include "dw2gencfi.h" | |
34 | #endif | |
35 | ||
36 | #include "dwarf2dbg.h" | |
37 | ||
38 | /* Types of processor to assemble for. */ | |
39 | #ifndef CPU_DEFAULT | |
40 | #define CPU_DEFAULT AARCH64_ARCH_V8 | |
41 | #endif | |
42 | ||
43 | #define streq(a, b) (strcmp (a, b) == 0) | |
44 | ||
f4c51f60 JW |
45 | #define END_OF_INSN '\0' |
46 | ||
a06ea964 NC |
47 | static aarch64_feature_set cpu_variant; |
48 | ||
49 | /* Variables that we set while parsing command-line options. Once all | |
50 | options have been read we re-process these values to set the real | |
51 | assembly flags. */ | |
52 | static const aarch64_feature_set *mcpu_cpu_opt = NULL; | |
53 | static const aarch64_feature_set *march_cpu_opt = NULL; | |
54 | ||
55 | /* Constants for known architecture features. */ | |
56 | static const aarch64_feature_set cpu_default = CPU_DEFAULT; | |
57 | ||
a06ea964 NC |
58 | #ifdef OBJ_ELF |
59 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ | |
60 | static symbolS *GOT_symbol; | |
cec5225b | 61 | |
69091a2c YZ |
62 | /* Which ABI to use. */ |
63 | enum aarch64_abi_type | |
64 | { | |
65 | AARCH64_ABI_LP64 = 0, | |
66 | AARCH64_ABI_ILP32 = 1 | |
67 | }; | |
68 | ||
69 | /* AArch64 ABI for the output file. */ | |
70 | static enum aarch64_abi_type aarch64_abi = AARCH64_ABI_LP64; | |
71 | ||
cec5225b YZ |
72 | /* When non-zero, program to a 32-bit model, in which the C data types |
73 | int, long and all pointer types are 32-bit objects (ILP32); or to a | |
74 | 64-bit model, in which the C int type is 32-bits but the C long type | |
75 | and all pointer types are 64-bit objects (LP64). */ | |
69091a2c | 76 | #define ilp32_p (aarch64_abi == AARCH64_ABI_ILP32) |
a06ea964 NC |
77 | #endif |
78 | ||
f06935a5 | 79 | enum vector_el_type |
a06ea964 NC |
80 | { |
81 | NT_invtype = -1, | |
82 | NT_b, | |
83 | NT_h, | |
84 | NT_s, | |
85 | NT_d, | |
d50c751e RS |
86 | NT_q, |
87 | NT_zero, | |
88 | NT_merge | |
a06ea964 NC |
89 | }; |
90 | ||
8f9a77af | 91 | /* Bits for DEFINED field in vector_type_el. */ |
f11ad6bc RS |
92 | #define NTA_HASTYPE 1 |
93 | #define NTA_HASINDEX 2 | |
94 | #define NTA_HASVARWIDTH 4 | |
a06ea964 | 95 | |
8f9a77af | 96 | struct vector_type_el |
a06ea964 | 97 | { |
f06935a5 | 98 | enum vector_el_type type; |
a06ea964 NC |
99 | unsigned char defined; |
100 | unsigned width; | |
101 | int64_t index; | |
102 | }; | |
103 | ||
104 | #define FIXUP_F_HAS_EXPLICIT_SHIFT 0x00000001 | |
105 | ||
106 | struct reloc | |
107 | { | |
108 | bfd_reloc_code_real_type type; | |
109 | expressionS exp; | |
110 | int pc_rel; | |
111 | enum aarch64_opnd opnd; | |
112 | uint32_t flags; | |
113 | unsigned need_libopcodes_p : 1; | |
114 | }; | |
115 | ||
116 | struct aarch64_instruction | |
117 | { | |
118 | /* libopcodes structure for instruction intermediate representation. */ | |
119 | aarch64_inst base; | |
120 | /* Record assembly errors found during the parsing. */ | |
121 | struct | |
122 | { | |
123 | enum aarch64_operand_error_kind kind; | |
124 | const char *error; | |
125 | } parsing_error; | |
126 | /* The condition that appears in the assembly line. */ | |
127 | int cond; | |
128 | /* Relocation information (including the GAS internal fixup). */ | |
129 | struct reloc reloc; | |
130 | /* Need to generate an immediate in the literal pool. */ | |
131 | unsigned gen_lit_pool : 1; | |
132 | }; | |
133 | ||
134 | typedef struct aarch64_instruction aarch64_instruction; | |
135 | ||
136 | static aarch64_instruction inst; | |
137 | ||
138 | static bfd_boolean parse_operands (char *, const aarch64_opcode *); | |
139 | static bfd_boolean programmer_friendly_fixup (aarch64_instruction *); | |
140 | ||
33eaf5de | 141 | /* Diagnostics inline function utilities. |
a06ea964 | 142 | |
33eaf5de | 143 | These are lightweight utilities which should only be called by parse_operands |
a06ea964 NC |
144 | and other parsers. GAS processes each assembly line by parsing it against |
145 | instruction template(s), in the case of multiple templates (for the same | |
146 | mnemonic name), those templates are tried one by one until one succeeds or | |
147 | all fail. An assembly line may fail a few templates before being | |
148 | successfully parsed; an error saved here in most cases is not a user error | |
149 | but an error indicating the current template is not the right template. | |
150 | Therefore it is very important that errors can be saved at a low cost during | |
151 | the parsing; we don't want to slow down the whole parsing by recording | |
152 | non-user errors in detail. | |
153 | ||
33eaf5de | 154 | Remember that the objective is to help GAS pick up the most appropriate |
a06ea964 NC |
155 | error message in the case of multiple templates, e.g. FMOV which has 8 |
156 | templates. */ | |
157 | ||
158 | static inline void | |
159 | clear_error (void) | |
160 | { | |
161 | inst.parsing_error.kind = AARCH64_OPDE_NIL; | |
162 | inst.parsing_error.error = NULL; | |
163 | } | |
164 | ||
165 | static inline bfd_boolean | |
166 | error_p (void) | |
167 | { | |
168 | return inst.parsing_error.kind != AARCH64_OPDE_NIL; | |
169 | } | |
170 | ||
171 | static inline const char * | |
172 | get_error_message (void) | |
173 | { | |
174 | return inst.parsing_error.error; | |
175 | } | |
176 | ||
a06ea964 NC |
177 | static inline enum aarch64_operand_error_kind |
178 | get_error_kind (void) | |
179 | { | |
180 | return inst.parsing_error.kind; | |
181 | } | |
182 | ||
a06ea964 NC |
183 | static inline void |
184 | set_error (enum aarch64_operand_error_kind kind, const char *error) | |
185 | { | |
186 | inst.parsing_error.kind = kind; | |
187 | inst.parsing_error.error = error; | |
188 | } | |
189 | ||
190 | static inline void | |
191 | set_recoverable_error (const char *error) | |
192 | { | |
193 | set_error (AARCH64_OPDE_RECOVERABLE, error); | |
194 | } | |
195 | ||
196 | /* Use the DESC field of the corresponding aarch64_operand entry to compose | |
197 | the error message. */ | |
198 | static inline void | |
199 | set_default_error (void) | |
200 | { | |
201 | set_error (AARCH64_OPDE_SYNTAX_ERROR, NULL); | |
202 | } | |
203 | ||
204 | static inline void | |
205 | set_syntax_error (const char *error) | |
206 | { | |
207 | set_error (AARCH64_OPDE_SYNTAX_ERROR, error); | |
208 | } | |
209 | ||
210 | static inline void | |
211 | set_first_syntax_error (const char *error) | |
212 | { | |
213 | if (! error_p ()) | |
214 | set_error (AARCH64_OPDE_SYNTAX_ERROR, error); | |
215 | } | |
216 | ||
217 | static inline void | |
218 | set_fatal_syntax_error (const char *error) | |
219 | { | |
220 | set_error (AARCH64_OPDE_FATAL_SYNTAX_ERROR, error); | |
221 | } | |
222 | \f | |
223 | /* Number of littlenums required to hold an extended precision number. */ | |
224 | #define MAX_LITTLENUMS 6 | |
225 | ||
226 | /* Return value for certain parsers when the parsing fails; those parsers | |
227 | return the information of the parsed result, e.g. register number, on | |
228 | success. */ | |
229 | #define PARSE_FAIL -1 | |
230 | ||
231 | /* This is an invalid condition code that means no conditional field is | |
232 | present. */ | |
233 | #define COND_ALWAYS 0x10 | |
234 | ||
235 | typedef struct | |
236 | { | |
237 | const char *template; | |
238 | unsigned long value; | |
239 | } asm_barrier_opt; | |
240 | ||
241 | typedef struct | |
242 | { | |
243 | const char *template; | |
244 | uint32_t value; | |
245 | } asm_nzcv; | |
246 | ||
247 | struct reloc_entry | |
248 | { | |
249 | char *name; | |
250 | bfd_reloc_code_real_type reloc; | |
251 | }; | |
252 | ||
a06ea964 NC |
253 | /* Macros to define the register types and masks for the purpose |
254 | of parsing. */ | |
255 | ||
256 | #undef AARCH64_REG_TYPES | |
257 | #define AARCH64_REG_TYPES \ | |
258 | BASIC_REG_TYPE(R_32) /* w[0-30] */ \ | |
259 | BASIC_REG_TYPE(R_64) /* x[0-30] */ \ | |
260 | BASIC_REG_TYPE(SP_32) /* wsp */ \ | |
261 | BASIC_REG_TYPE(SP_64) /* sp */ \ | |
262 | BASIC_REG_TYPE(Z_32) /* wzr */ \ | |
263 | BASIC_REG_TYPE(Z_64) /* xzr */ \ | |
264 | BASIC_REG_TYPE(FP_B) /* b[0-31] *//* NOTE: keep FP_[BHSDQ] consecutive! */\ | |
265 | BASIC_REG_TYPE(FP_H) /* h[0-31] */ \ | |
266 | BASIC_REG_TYPE(FP_S) /* s[0-31] */ \ | |
267 | BASIC_REG_TYPE(FP_D) /* d[0-31] */ \ | |
268 | BASIC_REG_TYPE(FP_Q) /* q[0-31] */ \ | |
a06ea964 | 269 | BASIC_REG_TYPE(VN) /* v[0-31] */ \ |
f11ad6bc RS |
270 | BASIC_REG_TYPE(ZN) /* z[0-31] */ \ |
271 | BASIC_REG_TYPE(PN) /* p[0-15] */ \ | |
e1b988bb | 272 | /* Typecheck: any 64-bit int reg (inc SP exc XZR). */ \ |
a06ea964 | 273 | MULTI_REG_TYPE(R64_SP, REG_TYPE(R_64) | REG_TYPE(SP_64)) \ |
4df068de RS |
274 | /* Typecheck: same, plus SVE registers. */ \ |
275 | MULTI_REG_TYPE(SVE_BASE, REG_TYPE(R_64) | REG_TYPE(SP_64) \ | |
276 | | REG_TYPE(ZN)) \ | |
e1b988bb RS |
277 | /* Typecheck: x[0-30], w[0-30] or [xw]zr. */ \ |
278 | MULTI_REG_TYPE(R_Z, REG_TYPE(R_32) | REG_TYPE(R_64) \ | |
279 | | REG_TYPE(Z_32) | REG_TYPE(Z_64)) \ | |
4df068de RS |
280 | /* Typecheck: same, plus SVE registers. */ \ |
281 | MULTI_REG_TYPE(SVE_OFFSET, REG_TYPE(R_32) | REG_TYPE(R_64) \ | |
282 | | REG_TYPE(Z_32) | REG_TYPE(Z_64) \ | |
283 | | REG_TYPE(ZN)) \ | |
e1b988bb RS |
284 | /* Typecheck: x[0-30], w[0-30] or {w}sp. */ \ |
285 | MULTI_REG_TYPE(R_SP, REG_TYPE(R_32) | REG_TYPE(R_64) \ | |
286 | | REG_TYPE(SP_32) | REG_TYPE(SP_64)) \ | |
287 | /* Typecheck: any int (inc {W}SP inc [WX]ZR). */ \ | |
a06ea964 NC |
288 | MULTI_REG_TYPE(R_Z_SP, REG_TYPE(R_32) | REG_TYPE(R_64) \ |
289 | | REG_TYPE(SP_32) | REG_TYPE(SP_64) \ | |
290 | | REG_TYPE(Z_32) | REG_TYPE(Z_64)) \ | |
291 | /* Typecheck: any [BHSDQ]P FP. */ \ | |
292 | MULTI_REG_TYPE(BHSDQ, REG_TYPE(FP_B) | REG_TYPE(FP_H) \ | |
293 | | REG_TYPE(FP_S) | REG_TYPE(FP_D) | REG_TYPE(FP_Q)) \ | |
e1b988bb | 294 | /* Typecheck: any int or [BHSDQ]P FP or V reg (exc SP inc [WX]ZR). */ \ |
a06ea964 NC |
295 | MULTI_REG_TYPE(R_Z_BHSDQ_V, REG_TYPE(R_32) | REG_TYPE(R_64) \ |
296 | | REG_TYPE(Z_32) | REG_TYPE(Z_64) | REG_TYPE(VN) \ | |
297 | | REG_TYPE(FP_B) | REG_TYPE(FP_H) \ | |
298 | | REG_TYPE(FP_S) | REG_TYPE(FP_D) | REG_TYPE(FP_Q)) \ | |
c0890d26 RS |
299 | /* Typecheck: as above, but also Zn and Pn. This should only be \ |
300 | used for SVE instructions, since Zn and Pn are valid symbols \ | |
301 | in other contexts. */ \ | |
302 | MULTI_REG_TYPE(R_Z_BHSDQ_VZP, REG_TYPE(R_32) | REG_TYPE(R_64) \ | |
303 | | REG_TYPE(Z_32) | REG_TYPE(Z_64) | REG_TYPE(VN) \ | |
304 | | REG_TYPE(FP_B) | REG_TYPE(FP_H) \ | |
305 | | REG_TYPE(FP_S) | REG_TYPE(FP_D) | REG_TYPE(FP_Q) \ | |
306 | | REG_TYPE(ZN) | REG_TYPE(PN)) \ | |
a06ea964 NC |
307 | /* Any integer register; used for error messages only. */ \ |
308 | MULTI_REG_TYPE(R_N, REG_TYPE(R_32) | REG_TYPE(R_64) \ | |
309 | | REG_TYPE(SP_32) | REG_TYPE(SP_64) \ | |
310 | | REG_TYPE(Z_32) | REG_TYPE(Z_64)) \ | |
311 | /* Pseudo type to mark the end of the enumerator sequence. */ \ | |
312 | BASIC_REG_TYPE(MAX) | |
313 | ||
314 | #undef BASIC_REG_TYPE | |
315 | #define BASIC_REG_TYPE(T) REG_TYPE_##T, | |
316 | #undef MULTI_REG_TYPE | |
317 | #define MULTI_REG_TYPE(T,V) BASIC_REG_TYPE(T) | |
318 | ||
319 | /* Register type enumerators. */ | |
8a0b252a | 320 | typedef enum aarch64_reg_type_ |
a06ea964 NC |
321 | { |
322 | /* A list of REG_TYPE_*. */ | |
323 | AARCH64_REG_TYPES | |
324 | } aarch64_reg_type; | |
325 | ||
326 | #undef BASIC_REG_TYPE | |
327 | #define BASIC_REG_TYPE(T) 1 << REG_TYPE_##T, | |
328 | #undef REG_TYPE | |
329 | #define REG_TYPE(T) (1 << REG_TYPE_##T) | |
330 | #undef MULTI_REG_TYPE | |
331 | #define MULTI_REG_TYPE(T,V) V, | |
332 | ||
8a0b252a TS |
333 | /* Structure for a hash table entry for a register. */ |
334 | typedef struct | |
335 | { | |
336 | const char *name; | |
337 | unsigned char number; | |
338 | ENUM_BITFIELD (aarch64_reg_type_) type : 8; | |
339 | unsigned char builtin; | |
340 | } reg_entry; | |
341 | ||
a06ea964 NC |
342 | /* Values indexed by aarch64_reg_type to assist the type checking. */ |
343 | static const unsigned reg_type_masks[] = | |
344 | { | |
345 | AARCH64_REG_TYPES | |
346 | }; | |
347 | ||
348 | #undef BASIC_REG_TYPE | |
349 | #undef REG_TYPE | |
350 | #undef MULTI_REG_TYPE | |
351 | #undef AARCH64_REG_TYPES | |
352 | ||
353 | /* Diagnostics used when we don't get a register of the expected type. | |
354 | Note: this has to synchronized with aarch64_reg_type definitions | |
355 | above. */ | |
356 | static const char * | |
357 | get_reg_expected_msg (aarch64_reg_type reg_type) | |
358 | { | |
359 | const char *msg; | |
360 | ||
361 | switch (reg_type) | |
362 | { | |
363 | case REG_TYPE_R_32: | |
364 | msg = N_("integer 32-bit register expected"); | |
365 | break; | |
366 | case REG_TYPE_R_64: | |
367 | msg = N_("integer 64-bit register expected"); | |
368 | break; | |
369 | case REG_TYPE_R_N: | |
370 | msg = N_("integer register expected"); | |
371 | break; | |
e1b988bb RS |
372 | case REG_TYPE_R64_SP: |
373 | msg = N_("64-bit integer or SP register expected"); | |
374 | break; | |
4df068de RS |
375 | case REG_TYPE_SVE_BASE: |
376 | msg = N_("base register expected"); | |
377 | break; | |
e1b988bb RS |
378 | case REG_TYPE_R_Z: |
379 | msg = N_("integer or zero register expected"); | |
380 | break; | |
4df068de RS |
381 | case REG_TYPE_SVE_OFFSET: |
382 | msg = N_("offset register expected"); | |
383 | break; | |
e1b988bb RS |
384 | case REG_TYPE_R_SP: |
385 | msg = N_("integer or SP register expected"); | |
386 | break; | |
a06ea964 NC |
387 | case REG_TYPE_R_Z_SP: |
388 | msg = N_("integer, zero or SP register expected"); | |
389 | break; | |
390 | case REG_TYPE_FP_B: | |
391 | msg = N_("8-bit SIMD scalar register expected"); | |
392 | break; | |
393 | case REG_TYPE_FP_H: | |
394 | msg = N_("16-bit SIMD scalar or floating-point half precision " | |
395 | "register expected"); | |
396 | break; | |
397 | case REG_TYPE_FP_S: | |
398 | msg = N_("32-bit SIMD scalar or floating-point single precision " | |
399 | "register expected"); | |
400 | break; | |
401 | case REG_TYPE_FP_D: | |
402 | msg = N_("64-bit SIMD scalar or floating-point double precision " | |
403 | "register expected"); | |
404 | break; | |
405 | case REG_TYPE_FP_Q: | |
406 | msg = N_("128-bit SIMD scalar or floating-point quad precision " | |
407 | "register expected"); | |
408 | break; | |
a06ea964 | 409 | case REG_TYPE_R_Z_BHSDQ_V: |
c0890d26 | 410 | case REG_TYPE_R_Z_BHSDQ_VZP: |
a06ea964 NC |
411 | msg = N_("register expected"); |
412 | break; | |
413 | case REG_TYPE_BHSDQ: /* any [BHSDQ]P FP */ | |
414 | msg = N_("SIMD scalar or floating-point register expected"); | |
415 | break; | |
416 | case REG_TYPE_VN: /* any V reg */ | |
417 | msg = N_("vector register expected"); | |
418 | break; | |
f11ad6bc RS |
419 | case REG_TYPE_ZN: |
420 | msg = N_("SVE vector register expected"); | |
421 | break; | |
422 | case REG_TYPE_PN: | |
423 | msg = N_("SVE predicate register expected"); | |
424 | break; | |
a06ea964 NC |
425 | default: |
426 | as_fatal (_("invalid register type %d"), reg_type); | |
427 | } | |
428 | return msg; | |
429 | } | |
430 | ||
431 | /* Some well known registers that we refer to directly elsewhere. */ | |
432 | #define REG_SP 31 | |
433 | ||
434 | /* Instructions take 4 bytes in the object file. */ | |
435 | #define INSN_SIZE 4 | |
436 | ||
a06ea964 NC |
437 | static struct hash_control *aarch64_ops_hsh; |
438 | static struct hash_control *aarch64_cond_hsh; | |
439 | static struct hash_control *aarch64_shift_hsh; | |
440 | static struct hash_control *aarch64_sys_regs_hsh; | |
441 | static struct hash_control *aarch64_pstatefield_hsh; | |
442 | static struct hash_control *aarch64_sys_regs_ic_hsh; | |
443 | static struct hash_control *aarch64_sys_regs_dc_hsh; | |
444 | static struct hash_control *aarch64_sys_regs_at_hsh; | |
445 | static struct hash_control *aarch64_sys_regs_tlbi_hsh; | |
446 | static struct hash_control *aarch64_reg_hsh; | |
447 | static struct hash_control *aarch64_barrier_opt_hsh; | |
448 | static struct hash_control *aarch64_nzcv_hsh; | |
449 | static struct hash_control *aarch64_pldop_hsh; | |
1e6f4800 | 450 | static struct hash_control *aarch64_hint_opt_hsh; |
a06ea964 NC |
451 | |
452 | /* Stuff needed to resolve the label ambiguity | |
453 | As: | |
454 | ... | |
455 | label: <insn> | |
456 | may differ from: | |
457 | ... | |
458 | label: | |
459 | <insn> */ | |
460 | ||
461 | static symbolS *last_label_seen; | |
462 | ||
463 | /* Literal pool structure. Held on a per-section | |
464 | and per-sub-section basis. */ | |
465 | ||
466 | #define MAX_LITERAL_POOL_SIZE 1024 | |
55d9b4c1 NC |
467 | typedef struct literal_expression |
468 | { | |
469 | expressionS exp; | |
470 | /* If exp.op == O_big then this bignum holds a copy of the global bignum value. */ | |
471 | LITTLENUM_TYPE * bignum; | |
472 | } literal_expression; | |
473 | ||
a06ea964 NC |
474 | typedef struct literal_pool |
475 | { | |
55d9b4c1 | 476 | literal_expression literals[MAX_LITERAL_POOL_SIZE]; |
a06ea964 NC |
477 | unsigned int next_free_entry; |
478 | unsigned int id; | |
479 | symbolS *symbol; | |
480 | segT section; | |
481 | subsegT sub_section; | |
482 | int size; | |
483 | struct literal_pool *next; | |
484 | } literal_pool; | |
485 | ||
486 | /* Pointer to a linked list of literal pools. */ | |
487 | static literal_pool *list_of_pools = NULL; | |
488 | \f | |
489 | /* Pure syntax. */ | |
490 | ||
491 | /* This array holds the chars that always start a comment. If the | |
492 | pre-processor is disabled, these aren't very useful. */ | |
493 | const char comment_chars[] = ""; | |
494 | ||
495 | /* This array holds the chars that only start a comment at the beginning of | |
496 | a line. If the line seems to have the form '# 123 filename' | |
497 | .line and .file directives will appear in the pre-processed output. */ | |
498 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
499 | first line of the input file. This is because the compiler outputs | |
500 | #NO_APP at the beginning of its output. */ | |
501 | /* Also note that comments like this one will always work. */ | |
502 | const char line_comment_chars[] = "#"; | |
503 | ||
504 | const char line_separator_chars[] = ";"; | |
505 | ||
506 | /* Chars that can be used to separate mant | |
507 | from exp in floating point numbers. */ | |
508 | const char EXP_CHARS[] = "eE"; | |
509 | ||
510 | /* Chars that mean this number is a floating point constant. */ | |
511 | /* As in 0f12.456 */ | |
512 | /* or 0d1.2345e12 */ | |
513 | ||
514 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; | |
515 | ||
516 | /* Prefix character that indicates the start of an immediate value. */ | |
517 | #define is_immediate_prefix(C) ((C) == '#') | |
518 | ||
519 | /* Separator character handling. */ | |
520 | ||
521 | #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0) | |
522 | ||
523 | static inline bfd_boolean | |
524 | skip_past_char (char **str, char c) | |
525 | { | |
526 | if (**str == c) | |
527 | { | |
528 | (*str)++; | |
529 | return TRUE; | |
530 | } | |
531 | else | |
532 | return FALSE; | |
533 | } | |
534 | ||
535 | #define skip_past_comma(str) skip_past_char (str, ',') | |
536 | ||
537 | /* Arithmetic expressions (possibly involving symbols). */ | |
538 | ||
a06ea964 NC |
539 | static bfd_boolean in_my_get_expression_p = FALSE; |
540 | ||
541 | /* Third argument to my_get_expression. */ | |
542 | #define GE_NO_PREFIX 0 | |
543 | #define GE_OPT_PREFIX 1 | |
544 | ||
545 | /* Return TRUE if the string pointed by *STR is successfully parsed | |
546 | as an valid expression; *EP will be filled with the information of | |
547 | such an expression. Otherwise return FALSE. */ | |
548 | ||
549 | static bfd_boolean | |
550 | my_get_expression (expressionS * ep, char **str, int prefix_mode, | |
551 | int reject_absent) | |
552 | { | |
553 | char *save_in; | |
554 | segT seg; | |
555 | int prefix_present_p = 0; | |
556 | ||
557 | switch (prefix_mode) | |
558 | { | |
559 | case GE_NO_PREFIX: | |
560 | break; | |
561 | case GE_OPT_PREFIX: | |
562 | if (is_immediate_prefix (**str)) | |
563 | { | |
564 | (*str)++; | |
565 | prefix_present_p = 1; | |
566 | } | |
567 | break; | |
568 | default: | |
569 | abort (); | |
570 | } | |
571 | ||
572 | memset (ep, 0, sizeof (expressionS)); | |
573 | ||
574 | save_in = input_line_pointer; | |
575 | input_line_pointer = *str; | |
576 | in_my_get_expression_p = TRUE; | |
577 | seg = expression (ep); | |
578 | in_my_get_expression_p = FALSE; | |
579 | ||
580 | if (ep->X_op == O_illegal || (reject_absent && ep->X_op == O_absent)) | |
581 | { | |
582 | /* We found a bad expression in md_operand(). */ | |
583 | *str = input_line_pointer; | |
584 | input_line_pointer = save_in; | |
585 | if (prefix_present_p && ! error_p ()) | |
586 | set_fatal_syntax_error (_("bad expression")); | |
587 | else | |
588 | set_first_syntax_error (_("bad expression")); | |
589 | return FALSE; | |
590 | } | |
591 | ||
592 | #ifdef OBJ_AOUT | |
593 | if (seg != absolute_section | |
594 | && seg != text_section | |
595 | && seg != data_section | |
596 | && seg != bss_section && seg != undefined_section) | |
597 | { | |
598 | set_syntax_error (_("bad segment")); | |
599 | *str = input_line_pointer; | |
600 | input_line_pointer = save_in; | |
601 | return FALSE; | |
602 | } | |
603 | #else | |
604 | (void) seg; | |
605 | #endif | |
606 | ||
a06ea964 NC |
607 | *str = input_line_pointer; |
608 | input_line_pointer = save_in; | |
609 | return TRUE; | |
610 | } | |
611 | ||
612 | /* Turn a string in input_line_pointer into a floating point constant | |
613 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
614 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
615 | returned, or NULL on OK. */ | |
616 | ||
6d4af3c2 | 617 | const char * |
a06ea964 NC |
618 | md_atof (int type, char *litP, int *sizeP) |
619 | { | |
620 | return ieee_md_atof (type, litP, sizeP, target_big_endian); | |
621 | } | |
622 | ||
623 | /* We handle all bad expressions here, so that we can report the faulty | |
624 | instruction in the error message. */ | |
625 | void | |
626 | md_operand (expressionS * exp) | |
627 | { | |
628 | if (in_my_get_expression_p) | |
629 | exp->X_op = O_illegal; | |
630 | } | |
631 | ||
632 | /* Immediate values. */ | |
633 | ||
634 | /* Errors may be set multiple times during parsing or bit encoding | |
635 | (particularly in the Neon bits), but usually the earliest error which is set | |
636 | will be the most meaningful. Avoid overwriting it with later (cascading) | |
637 | errors by calling this function. */ | |
638 | ||
639 | static void | |
640 | first_error (const char *error) | |
641 | { | |
642 | if (! error_p ()) | |
643 | set_syntax_error (error); | |
644 | } | |
645 | ||
2b0f3761 | 646 | /* Similar to first_error, but this function accepts formatted error |
a06ea964 NC |
647 | message. */ |
648 | static void | |
649 | first_error_fmt (const char *format, ...) | |
650 | { | |
651 | va_list args; | |
652 | enum | |
653 | { size = 100 }; | |
654 | /* N.B. this single buffer will not cause error messages for different | |
655 | instructions to pollute each other; this is because at the end of | |
656 | processing of each assembly line, error message if any will be | |
657 | collected by as_bad. */ | |
658 | static char buffer[size]; | |
659 | ||
660 | if (! error_p ()) | |
661 | { | |
3e0baa28 | 662 | int ret ATTRIBUTE_UNUSED; |
a06ea964 NC |
663 | va_start (args, format); |
664 | ret = vsnprintf (buffer, size, format, args); | |
665 | know (ret <= size - 1 && ret >= 0); | |
666 | va_end (args); | |
667 | set_syntax_error (buffer); | |
668 | } | |
669 | } | |
670 | ||
671 | /* Register parsing. */ | |
672 | ||
673 | /* Generic register parser which is called by other specialized | |
674 | register parsers. | |
675 | CCP points to what should be the beginning of a register name. | |
676 | If it is indeed a valid register name, advance CCP over it and | |
677 | return the reg_entry structure; otherwise return NULL. | |
678 | It does not issue diagnostics. */ | |
679 | ||
680 | static reg_entry * | |
681 | parse_reg (char **ccp) | |
682 | { | |
683 | char *start = *ccp; | |
684 | char *p; | |
685 | reg_entry *reg; | |
686 | ||
687 | #ifdef REGISTER_PREFIX | |
688 | if (*start != REGISTER_PREFIX) | |
689 | return NULL; | |
690 | start++; | |
691 | #endif | |
692 | ||
693 | p = start; | |
694 | if (!ISALPHA (*p) || !is_name_beginner (*p)) | |
695 | return NULL; | |
696 | ||
697 | do | |
698 | p++; | |
699 | while (ISALPHA (*p) || ISDIGIT (*p) || *p == '_'); | |
700 | ||
701 | reg = (reg_entry *) hash_find_n (aarch64_reg_hsh, start, p - start); | |
702 | ||
703 | if (!reg) | |
704 | return NULL; | |
705 | ||
706 | *ccp = p; | |
707 | return reg; | |
708 | } | |
709 | ||
710 | /* Return TRUE if REG->TYPE is a valid type of TYPE; otherwise | |
711 | return FALSE. */ | |
712 | static bfd_boolean | |
713 | aarch64_check_reg_type (const reg_entry *reg, aarch64_reg_type type) | |
714 | { | |
e1b988bb | 715 | return (reg_type_masks[type] & (1 << reg->type)) != 0; |
a06ea964 NC |
716 | } |
717 | ||
4df068de RS |
718 | /* Try to parse a base or offset register. Allow SVE base and offset |
719 | registers if REG_TYPE includes SVE registers. Return the register | |
720 | entry on success, setting *QUALIFIER to the register qualifier. | |
721 | Return null otherwise. | |
e1b988bb | 722 | |
a06ea964 NC |
723 | Note that this function does not issue any diagnostics. */ |
724 | ||
e1b988bb | 725 | static const reg_entry * |
4df068de RS |
726 | aarch64_addr_reg_parse (char **ccp, aarch64_reg_type reg_type, |
727 | aarch64_opnd_qualifier_t *qualifier) | |
a06ea964 NC |
728 | { |
729 | char *str = *ccp; | |
730 | const reg_entry *reg = parse_reg (&str); | |
731 | ||
732 | if (reg == NULL) | |
e1b988bb | 733 | return NULL; |
a06ea964 NC |
734 | |
735 | switch (reg->type) | |
736 | { | |
e1b988bb | 737 | case REG_TYPE_R_32: |
a06ea964 | 738 | case REG_TYPE_SP_32: |
e1b988bb RS |
739 | case REG_TYPE_Z_32: |
740 | *qualifier = AARCH64_OPND_QLF_W; | |
a06ea964 | 741 | break; |
e1b988bb | 742 | |
a06ea964 | 743 | case REG_TYPE_R_64: |
e1b988bb | 744 | case REG_TYPE_SP_64: |
a06ea964 | 745 | case REG_TYPE_Z_64: |
e1b988bb | 746 | *qualifier = AARCH64_OPND_QLF_X; |
a06ea964 | 747 | break; |
e1b988bb | 748 | |
4df068de RS |
749 | case REG_TYPE_ZN: |
750 | if ((reg_type_masks[reg_type] & (1 << REG_TYPE_ZN)) == 0 | |
751 | || str[0] != '.') | |
752 | return NULL; | |
753 | switch (TOLOWER (str[1])) | |
754 | { | |
755 | case 's': | |
756 | *qualifier = AARCH64_OPND_QLF_S_S; | |
757 | break; | |
758 | case 'd': | |
759 | *qualifier = AARCH64_OPND_QLF_S_D; | |
760 | break; | |
761 | default: | |
762 | return NULL; | |
763 | } | |
764 | str += 2; | |
765 | break; | |
766 | ||
a06ea964 | 767 | default: |
e1b988bb | 768 | return NULL; |
a06ea964 NC |
769 | } |
770 | ||
771 | *ccp = str; | |
772 | ||
e1b988bb | 773 | return reg; |
a06ea964 NC |
774 | } |
775 | ||
4df068de RS |
776 | /* Try to parse a base or offset register. Return the register entry |
777 | on success, setting *QUALIFIER to the register qualifier. Return null | |
778 | otherwise. | |
779 | ||
780 | Note that this function does not issue any diagnostics. */ | |
781 | ||
782 | static const reg_entry * | |
783 | aarch64_reg_parse_32_64 (char **ccp, aarch64_opnd_qualifier_t *qualifier) | |
784 | { | |
785 | return aarch64_addr_reg_parse (ccp, REG_TYPE_R_Z_SP, qualifier); | |
786 | } | |
787 | ||
f11ad6bc RS |
788 | /* Parse the qualifier of a vector register or vector element of type |
789 | REG_TYPE. Fill in *PARSED_TYPE and return TRUE if the parsing | |
790 | succeeds; otherwise return FALSE. | |
a06ea964 NC |
791 | |
792 | Accept only one occurrence of: | |
3067d3b9 | 793 | 8b 16b 2h 4h 8h 2s 4s 1d 2d |
a06ea964 NC |
794 | b h s d q */ |
795 | static bfd_boolean | |
f11ad6bc RS |
796 | parse_vector_type_for_operand (aarch64_reg_type reg_type, |
797 | struct vector_type_el *parsed_type, char **str) | |
a06ea964 NC |
798 | { |
799 | char *ptr = *str; | |
800 | unsigned width; | |
801 | unsigned element_size; | |
f06935a5 | 802 | enum vector_el_type type; |
a06ea964 NC |
803 | |
804 | /* skip '.' */ | |
d50c751e | 805 | gas_assert (*ptr == '.'); |
a06ea964 NC |
806 | ptr++; |
807 | ||
f11ad6bc | 808 | if (reg_type == REG_TYPE_ZN || reg_type == REG_TYPE_PN || !ISDIGIT (*ptr)) |
a06ea964 NC |
809 | { |
810 | width = 0; | |
811 | goto elt_size; | |
812 | } | |
813 | width = strtoul (ptr, &ptr, 10); | |
814 | if (width != 1 && width != 2 && width != 4 && width != 8 && width != 16) | |
815 | { | |
816 | first_error_fmt (_("bad size %d in vector width specifier"), width); | |
817 | return FALSE; | |
818 | } | |
819 | ||
820 | elt_size: | |
821 | switch (TOLOWER (*ptr)) | |
822 | { | |
823 | case 'b': | |
824 | type = NT_b; | |
825 | element_size = 8; | |
826 | break; | |
827 | case 'h': | |
828 | type = NT_h; | |
829 | element_size = 16; | |
830 | break; | |
831 | case 's': | |
832 | type = NT_s; | |
833 | element_size = 32; | |
834 | break; | |
835 | case 'd': | |
836 | type = NT_d; | |
837 | element_size = 64; | |
838 | break; | |
839 | case 'q': | |
840 | if (width == 1) | |
841 | { | |
842 | type = NT_q; | |
843 | element_size = 128; | |
844 | break; | |
845 | } | |
846 | /* fall through. */ | |
847 | default: | |
848 | if (*ptr != '\0') | |
849 | first_error_fmt (_("unexpected character `%c' in element size"), *ptr); | |
850 | else | |
851 | first_error (_("missing element size")); | |
852 | return FALSE; | |
853 | } | |
3067d3b9 MW |
854 | if (width != 0 && width * element_size != 64 && width * element_size != 128 |
855 | && !(width == 2 && element_size == 16)) | |
a06ea964 NC |
856 | { |
857 | first_error_fmt (_ | |
858 | ("invalid element size %d and vector size combination %c"), | |
859 | width, *ptr); | |
860 | return FALSE; | |
861 | } | |
862 | ptr++; | |
863 | ||
864 | parsed_type->type = type; | |
865 | parsed_type->width = width; | |
866 | ||
867 | *str = ptr; | |
868 | ||
869 | return TRUE; | |
870 | } | |
871 | ||
d50c751e RS |
872 | /* *STR contains an SVE zero/merge predication suffix. Parse it into |
873 | *PARSED_TYPE and point *STR at the end of the suffix. */ | |
874 | ||
875 | static bfd_boolean | |
876 | parse_predication_for_operand (struct vector_type_el *parsed_type, char **str) | |
877 | { | |
878 | char *ptr = *str; | |
879 | ||
880 | /* Skip '/'. */ | |
881 | gas_assert (*ptr == '/'); | |
882 | ptr++; | |
883 | switch (TOLOWER (*ptr)) | |
884 | { | |
885 | case 'z': | |
886 | parsed_type->type = NT_zero; | |
887 | break; | |
888 | case 'm': | |
889 | parsed_type->type = NT_merge; | |
890 | break; | |
891 | default: | |
892 | if (*ptr != '\0' && *ptr != ',') | |
893 | first_error_fmt (_("unexpected character `%c' in predication type"), | |
894 | *ptr); | |
895 | else | |
896 | first_error (_("missing predication type")); | |
897 | return FALSE; | |
898 | } | |
899 | parsed_type->width = 0; | |
900 | *str = ptr + 1; | |
901 | return TRUE; | |
902 | } | |
903 | ||
a06ea964 NC |
904 | /* Parse a register of the type TYPE. |
905 | ||
906 | Return PARSE_FAIL if the string pointed by *CCP is not a valid register | |
907 | name or the parsed register is not of TYPE. | |
908 | ||
909 | Otherwise return the register number, and optionally fill in the actual | |
910 | type of the register in *RTYPE when multiple alternatives were given, and | |
911 | return the register shape and element index information in *TYPEINFO. | |
912 | ||
913 | IN_REG_LIST should be set with TRUE if the caller is parsing a register | |
914 | list. */ | |
915 | ||
916 | static int | |
917 | parse_typed_reg (char **ccp, aarch64_reg_type type, aarch64_reg_type *rtype, | |
8f9a77af | 918 | struct vector_type_el *typeinfo, bfd_boolean in_reg_list) |
a06ea964 NC |
919 | { |
920 | char *str = *ccp; | |
921 | const reg_entry *reg = parse_reg (&str); | |
8f9a77af RS |
922 | struct vector_type_el atype; |
923 | struct vector_type_el parsetype; | |
a06ea964 NC |
924 | bfd_boolean is_typed_vecreg = FALSE; |
925 | ||
926 | atype.defined = 0; | |
927 | atype.type = NT_invtype; | |
928 | atype.width = -1; | |
929 | atype.index = 0; | |
930 | ||
931 | if (reg == NULL) | |
932 | { | |
933 | if (typeinfo) | |
934 | *typeinfo = atype; | |
935 | set_default_error (); | |
936 | return PARSE_FAIL; | |
937 | } | |
938 | ||
939 | if (! aarch64_check_reg_type (reg, type)) | |
940 | { | |
941 | DEBUG_TRACE ("reg type check failed"); | |
942 | set_default_error (); | |
943 | return PARSE_FAIL; | |
944 | } | |
945 | type = reg->type; | |
946 | ||
f11ad6bc | 947 | if ((type == REG_TYPE_VN || type == REG_TYPE_ZN || type == REG_TYPE_PN) |
d50c751e | 948 | && (*str == '.' || (type == REG_TYPE_PN && *str == '/'))) |
a06ea964 | 949 | { |
d50c751e RS |
950 | if (*str == '.') |
951 | { | |
952 | if (!parse_vector_type_for_operand (type, &parsetype, &str)) | |
953 | return PARSE_FAIL; | |
954 | } | |
955 | else | |
956 | { | |
957 | if (!parse_predication_for_operand (&parsetype, &str)) | |
958 | return PARSE_FAIL; | |
959 | } | |
a235d3ae | 960 | |
a06ea964 NC |
961 | /* Register if of the form Vn.[bhsdq]. */ |
962 | is_typed_vecreg = TRUE; | |
963 | ||
f11ad6bc RS |
964 | if (type == REG_TYPE_ZN || type == REG_TYPE_PN) |
965 | { | |
966 | /* The width is always variable; we don't allow an integer width | |
967 | to be specified. */ | |
968 | gas_assert (parsetype.width == 0); | |
969 | atype.defined |= NTA_HASVARWIDTH | NTA_HASTYPE; | |
970 | } | |
971 | else if (parsetype.width == 0) | |
a06ea964 NC |
972 | /* Expect index. In the new scheme we cannot have |
973 | Vn.[bhsdq] represent a scalar. Therefore any | |
974 | Vn.[bhsdq] should have an index following it. | |
33eaf5de | 975 | Except in reglists of course. */ |
a06ea964 NC |
976 | atype.defined |= NTA_HASINDEX; |
977 | else | |
978 | atype.defined |= NTA_HASTYPE; | |
979 | ||
980 | atype.type = parsetype.type; | |
981 | atype.width = parsetype.width; | |
982 | } | |
983 | ||
984 | if (skip_past_char (&str, '[')) | |
985 | { | |
986 | expressionS exp; | |
987 | ||
988 | /* Reject Sn[index] syntax. */ | |
989 | if (!is_typed_vecreg) | |
990 | { | |
991 | first_error (_("this type of register can't be indexed")); | |
992 | return PARSE_FAIL; | |
993 | } | |
994 | ||
995 | if (in_reg_list == TRUE) | |
996 | { | |
997 | first_error (_("index not allowed inside register list")); | |
998 | return PARSE_FAIL; | |
999 | } | |
1000 | ||
1001 | atype.defined |= NTA_HASINDEX; | |
1002 | ||
1003 | my_get_expression (&exp, &str, GE_NO_PREFIX, 1); | |
1004 | ||
1005 | if (exp.X_op != O_constant) | |
1006 | { | |
1007 | first_error (_("constant expression required")); | |
1008 | return PARSE_FAIL; | |
1009 | } | |
1010 | ||
1011 | if (! skip_past_char (&str, ']')) | |
1012 | return PARSE_FAIL; | |
1013 | ||
1014 | atype.index = exp.X_add_number; | |
1015 | } | |
1016 | else if (!in_reg_list && (atype.defined & NTA_HASINDEX) != 0) | |
1017 | { | |
1018 | /* Indexed vector register expected. */ | |
1019 | first_error (_("indexed vector register expected")); | |
1020 | return PARSE_FAIL; | |
1021 | } | |
1022 | ||
1023 | /* A vector reg Vn should be typed or indexed. */ | |
1024 | if (type == REG_TYPE_VN && atype.defined == 0) | |
1025 | { | |
1026 | first_error (_("invalid use of vector register")); | |
1027 | } | |
1028 | ||
1029 | if (typeinfo) | |
1030 | *typeinfo = atype; | |
1031 | ||
1032 | if (rtype) | |
1033 | *rtype = type; | |
1034 | ||
1035 | *ccp = str; | |
1036 | ||
1037 | return reg->number; | |
1038 | } | |
1039 | ||
1040 | /* Parse register. | |
1041 | ||
1042 | Return the register number on success; return PARSE_FAIL otherwise. | |
1043 | ||
1044 | If RTYPE is not NULL, return in *RTYPE the (possibly restricted) type of | |
1045 | the register (e.g. NEON double or quad reg when either has been requested). | |
1046 | ||
1047 | If this is a NEON vector register with additional type information, fill | |
1048 | in the struct pointed to by VECTYPE (if non-NULL). | |
1049 | ||
1050 | This parser does not handle register list. */ | |
1051 | ||
1052 | static int | |
1053 | aarch64_reg_parse (char **ccp, aarch64_reg_type type, | |
8f9a77af | 1054 | aarch64_reg_type *rtype, struct vector_type_el *vectype) |
a06ea964 | 1055 | { |
8f9a77af | 1056 | struct vector_type_el atype; |
a06ea964 NC |
1057 | char *str = *ccp; |
1058 | int reg = parse_typed_reg (&str, type, rtype, &atype, | |
1059 | /*in_reg_list= */ FALSE); | |
1060 | ||
1061 | if (reg == PARSE_FAIL) | |
1062 | return PARSE_FAIL; | |
1063 | ||
1064 | if (vectype) | |
1065 | *vectype = atype; | |
1066 | ||
1067 | *ccp = str; | |
1068 | ||
1069 | return reg; | |
1070 | } | |
1071 | ||
1072 | static inline bfd_boolean | |
8f9a77af | 1073 | eq_vector_type_el (struct vector_type_el e1, struct vector_type_el e2) |
a06ea964 NC |
1074 | { |
1075 | return | |
1076 | e1.type == e2.type | |
1077 | && e1.defined == e2.defined | |
1078 | && e1.width == e2.width && e1.index == e2.index; | |
1079 | } | |
1080 | ||
10d76650 RS |
1081 | /* This function parses a list of vector registers of type TYPE. |
1082 | On success, it returns the parsed register list information in the | |
1083 | following encoded format: | |
a06ea964 NC |
1084 | |
1085 | bit 18-22 | 13-17 | 7-11 | 2-6 | 0-1 | |
1086 | 4th regno | 3rd regno | 2nd regno | 1st regno | num_of_reg | |
1087 | ||
1088 | The information of the register shape and/or index is returned in | |
1089 | *VECTYPE. | |
1090 | ||
1091 | It returns PARSE_FAIL if the register list is invalid. | |
1092 | ||
1093 | The list contains one to four registers. | |
1094 | Each register can be one of: | |
1095 | <Vt>.<T>[<index>] | |
1096 | <Vt>.<T> | |
1097 | All <T> should be identical. | |
1098 | All <index> should be identical. | |
1099 | There are restrictions on <Vt> numbers which are checked later | |
1100 | (by reg_list_valid_p). */ | |
1101 | ||
1102 | static int | |
10d76650 RS |
1103 | parse_vector_reg_list (char **ccp, aarch64_reg_type type, |
1104 | struct vector_type_el *vectype) | |
a06ea964 NC |
1105 | { |
1106 | char *str = *ccp; | |
1107 | int nb_regs; | |
8f9a77af | 1108 | struct vector_type_el typeinfo, typeinfo_first; |
a06ea964 NC |
1109 | int val, val_range; |
1110 | int in_range; | |
1111 | int ret_val; | |
1112 | int i; | |
1113 | bfd_boolean error = FALSE; | |
1114 | bfd_boolean expect_index = FALSE; | |
1115 | ||
1116 | if (*str != '{') | |
1117 | { | |
1118 | set_syntax_error (_("expecting {")); | |
1119 | return PARSE_FAIL; | |
1120 | } | |
1121 | str++; | |
1122 | ||
1123 | nb_regs = 0; | |
1124 | typeinfo_first.defined = 0; | |
1125 | typeinfo_first.type = NT_invtype; | |
1126 | typeinfo_first.width = -1; | |
1127 | typeinfo_first.index = 0; | |
1128 | ret_val = 0; | |
1129 | val = -1; | |
1130 | val_range = -1; | |
1131 | in_range = 0; | |
1132 | do | |
1133 | { | |
1134 | if (in_range) | |
1135 | { | |
1136 | str++; /* skip over '-' */ | |
1137 | val_range = val; | |
1138 | } | |
10d76650 | 1139 | val = parse_typed_reg (&str, type, NULL, &typeinfo, |
a06ea964 NC |
1140 | /*in_reg_list= */ TRUE); |
1141 | if (val == PARSE_FAIL) | |
1142 | { | |
1143 | set_first_syntax_error (_("invalid vector register in list")); | |
1144 | error = TRUE; | |
1145 | continue; | |
1146 | } | |
1147 | /* reject [bhsd]n */ | |
f11ad6bc | 1148 | if (type == REG_TYPE_VN && typeinfo.defined == 0) |
a06ea964 NC |
1149 | { |
1150 | set_first_syntax_error (_("invalid scalar register in list")); | |
1151 | error = TRUE; | |
1152 | continue; | |
1153 | } | |
1154 | ||
1155 | if (typeinfo.defined & NTA_HASINDEX) | |
1156 | expect_index = TRUE; | |
1157 | ||
1158 | if (in_range) | |
1159 | { | |
1160 | if (val < val_range) | |
1161 | { | |
1162 | set_first_syntax_error | |
1163 | (_("invalid range in vector register list")); | |
1164 | error = TRUE; | |
1165 | } | |
1166 | val_range++; | |
1167 | } | |
1168 | else | |
1169 | { | |
1170 | val_range = val; | |
1171 | if (nb_regs == 0) | |
1172 | typeinfo_first = typeinfo; | |
8f9a77af | 1173 | else if (! eq_vector_type_el (typeinfo_first, typeinfo)) |
a06ea964 NC |
1174 | { |
1175 | set_first_syntax_error | |
1176 | (_("type mismatch in vector register list")); | |
1177 | error = TRUE; | |
1178 | } | |
1179 | } | |
1180 | if (! error) | |
1181 | for (i = val_range; i <= val; i++) | |
1182 | { | |
1183 | ret_val |= i << (5 * nb_regs); | |
1184 | nb_regs++; | |
1185 | } | |
1186 | in_range = 0; | |
1187 | } | |
1188 | while (skip_past_comma (&str) || (in_range = 1, *str == '-')); | |
1189 | ||
1190 | skip_whitespace (str); | |
1191 | if (*str != '}') | |
1192 | { | |
1193 | set_first_syntax_error (_("end of vector register list not found")); | |
1194 | error = TRUE; | |
1195 | } | |
1196 | str++; | |
1197 | ||
1198 | skip_whitespace (str); | |
1199 | ||
1200 | if (expect_index) | |
1201 | { | |
1202 | if (skip_past_char (&str, '[')) | |
1203 | { | |
1204 | expressionS exp; | |
1205 | ||
1206 | my_get_expression (&exp, &str, GE_NO_PREFIX, 1); | |
1207 | if (exp.X_op != O_constant) | |
1208 | { | |
1209 | set_first_syntax_error (_("constant expression required.")); | |
1210 | error = TRUE; | |
1211 | } | |
1212 | if (! skip_past_char (&str, ']')) | |
1213 | error = TRUE; | |
1214 | else | |
1215 | typeinfo_first.index = exp.X_add_number; | |
1216 | } | |
1217 | else | |
1218 | { | |
1219 | set_first_syntax_error (_("expected index")); | |
1220 | error = TRUE; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | if (nb_regs > 4) | |
1225 | { | |
1226 | set_first_syntax_error (_("too many registers in vector register list")); | |
1227 | error = TRUE; | |
1228 | } | |
1229 | else if (nb_regs == 0) | |
1230 | { | |
1231 | set_first_syntax_error (_("empty vector register list")); | |
1232 | error = TRUE; | |
1233 | } | |
1234 | ||
1235 | *ccp = str; | |
1236 | if (! error) | |
1237 | *vectype = typeinfo_first; | |
1238 | ||
1239 | return error ? PARSE_FAIL : (ret_val << 2) | (nb_regs - 1); | |
1240 | } | |
1241 | ||
1242 | /* Directives: register aliases. */ | |
1243 | ||
1244 | static reg_entry * | |
1245 | insert_reg_alias (char *str, int number, aarch64_reg_type type) | |
1246 | { | |
1247 | reg_entry *new; | |
1248 | const char *name; | |
1249 | ||
1250 | if ((new = hash_find (aarch64_reg_hsh, str)) != 0) | |
1251 | { | |
1252 | if (new->builtin) | |
1253 | as_warn (_("ignoring attempt to redefine built-in register '%s'"), | |
1254 | str); | |
1255 | ||
1256 | /* Only warn about a redefinition if it's not defined as the | |
1257 | same register. */ | |
1258 | else if (new->number != number || new->type != type) | |
1259 | as_warn (_("ignoring redefinition of register alias '%s'"), str); | |
1260 | ||
1261 | return NULL; | |
1262 | } | |
1263 | ||
1264 | name = xstrdup (str); | |
add39d23 | 1265 | new = XNEW (reg_entry); |
a06ea964 NC |
1266 | |
1267 | new->name = name; | |
1268 | new->number = number; | |
1269 | new->type = type; | |
1270 | new->builtin = FALSE; | |
1271 | ||
1272 | if (hash_insert (aarch64_reg_hsh, name, (void *) new)) | |
1273 | abort (); | |
1274 | ||
1275 | return new; | |
1276 | } | |
1277 | ||
1278 | /* Look for the .req directive. This is of the form: | |
1279 | ||
1280 | new_register_name .req existing_register_name | |
1281 | ||
1282 | If we find one, or if it looks sufficiently like one that we want to | |
1283 | handle any error here, return TRUE. Otherwise return FALSE. */ | |
1284 | ||
1285 | static bfd_boolean | |
1286 | create_register_alias (char *newname, char *p) | |
1287 | { | |
1288 | const reg_entry *old; | |
1289 | char *oldname, *nbuf; | |
1290 | size_t nlen; | |
1291 | ||
1292 | /* The input scrubber ensures that whitespace after the mnemonic is | |
1293 | collapsed to single spaces. */ | |
1294 | oldname = p; | |
1295 | if (strncmp (oldname, " .req ", 6) != 0) | |
1296 | return FALSE; | |
1297 | ||
1298 | oldname += 6; | |
1299 | if (*oldname == '\0') | |
1300 | return FALSE; | |
1301 | ||
1302 | old = hash_find (aarch64_reg_hsh, oldname); | |
1303 | if (!old) | |
1304 | { | |
1305 | as_warn (_("unknown register '%s' -- .req ignored"), oldname); | |
1306 | return TRUE; | |
1307 | } | |
1308 | ||
1309 | /* If TC_CASE_SENSITIVE is defined, then newname already points to | |
1310 | the desired alias name, and p points to its end. If not, then | |
1311 | the desired alias name is in the global original_case_string. */ | |
1312 | #ifdef TC_CASE_SENSITIVE | |
1313 | nlen = p - newname; | |
1314 | #else | |
1315 | newname = original_case_string; | |
1316 | nlen = strlen (newname); | |
1317 | #endif | |
1318 | ||
29a2809e | 1319 | nbuf = xmemdup0 (newname, nlen); |
a06ea964 NC |
1320 | |
1321 | /* Create aliases under the new name as stated; an all-lowercase | |
1322 | version of the new name; and an all-uppercase version of the new | |
1323 | name. */ | |
1324 | if (insert_reg_alias (nbuf, old->number, old->type) != NULL) | |
1325 | { | |
1326 | for (p = nbuf; *p; p++) | |
1327 | *p = TOUPPER (*p); | |
1328 | ||
1329 | if (strncmp (nbuf, newname, nlen)) | |
1330 | { | |
1331 | /* If this attempt to create an additional alias fails, do not bother | |
1332 | trying to create the all-lower case alias. We will fail and issue | |
1333 | a second, duplicate error message. This situation arises when the | |
1334 | programmer does something like: | |
1335 | foo .req r0 | |
1336 | Foo .req r1 | |
1337 | The second .req creates the "Foo" alias but then fails to create | |
1338 | the artificial FOO alias because it has already been created by the | |
1339 | first .req. */ | |
1340 | if (insert_reg_alias (nbuf, old->number, old->type) == NULL) | |
e1fa0163 NC |
1341 | { |
1342 | free (nbuf); | |
1343 | return TRUE; | |
1344 | } | |
a06ea964 NC |
1345 | } |
1346 | ||
1347 | for (p = nbuf; *p; p++) | |
1348 | *p = TOLOWER (*p); | |
1349 | ||
1350 | if (strncmp (nbuf, newname, nlen)) | |
1351 | insert_reg_alias (nbuf, old->number, old->type); | |
1352 | } | |
1353 | ||
e1fa0163 | 1354 | free (nbuf); |
a06ea964 NC |
1355 | return TRUE; |
1356 | } | |
1357 | ||
1358 | /* Should never be called, as .req goes between the alias and the | |
1359 | register name, not at the beginning of the line. */ | |
1360 | static void | |
1361 | s_req (int a ATTRIBUTE_UNUSED) | |
1362 | { | |
1363 | as_bad (_("invalid syntax for .req directive")); | |
1364 | } | |
1365 | ||
1366 | /* The .unreq directive deletes an alias which was previously defined | |
1367 | by .req. For example: | |
1368 | ||
1369 | my_alias .req r11 | |
1370 | .unreq my_alias */ | |
1371 | ||
1372 | static void | |
1373 | s_unreq (int a ATTRIBUTE_UNUSED) | |
1374 | { | |
1375 | char *name; | |
1376 | char saved_char; | |
1377 | ||
1378 | name = input_line_pointer; | |
1379 | ||
1380 | while (*input_line_pointer != 0 | |
1381 | && *input_line_pointer != ' ' && *input_line_pointer != '\n') | |
1382 | ++input_line_pointer; | |
1383 | ||
1384 | saved_char = *input_line_pointer; | |
1385 | *input_line_pointer = 0; | |
1386 | ||
1387 | if (!*name) | |
1388 | as_bad (_("invalid syntax for .unreq directive")); | |
1389 | else | |
1390 | { | |
1391 | reg_entry *reg = hash_find (aarch64_reg_hsh, name); | |
1392 | ||
1393 | if (!reg) | |
1394 | as_bad (_("unknown register alias '%s'"), name); | |
1395 | else if (reg->builtin) | |
1396 | as_warn (_("ignoring attempt to undefine built-in register '%s'"), | |
1397 | name); | |
1398 | else | |
1399 | { | |
1400 | char *p; | |
1401 | char *nbuf; | |
1402 | ||
1403 | hash_delete (aarch64_reg_hsh, name, FALSE); | |
1404 | free ((char *) reg->name); | |
1405 | free (reg); | |
1406 | ||
1407 | /* Also locate the all upper case and all lower case versions. | |
1408 | Do not complain if we cannot find one or the other as it | |
1409 | was probably deleted above. */ | |
1410 | ||
1411 | nbuf = strdup (name); | |
1412 | for (p = nbuf; *p; p++) | |
1413 | *p = TOUPPER (*p); | |
1414 | reg = hash_find (aarch64_reg_hsh, nbuf); | |
1415 | if (reg) | |
1416 | { | |
1417 | hash_delete (aarch64_reg_hsh, nbuf, FALSE); | |
1418 | free ((char *) reg->name); | |
1419 | free (reg); | |
1420 | } | |
1421 | ||
1422 | for (p = nbuf; *p; p++) | |
1423 | *p = TOLOWER (*p); | |
1424 | reg = hash_find (aarch64_reg_hsh, nbuf); | |
1425 | if (reg) | |
1426 | { | |
1427 | hash_delete (aarch64_reg_hsh, nbuf, FALSE); | |
1428 | free ((char *) reg->name); | |
1429 | free (reg); | |
1430 | } | |
1431 | ||
1432 | free (nbuf); | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | *input_line_pointer = saved_char; | |
1437 | demand_empty_rest_of_line (); | |
1438 | } | |
1439 | ||
1440 | /* Directives: Instruction set selection. */ | |
1441 | ||
1442 | #ifdef OBJ_ELF | |
1443 | /* This code is to handle mapping symbols as defined in the ARM AArch64 ELF | |
1444 | spec. (See "Mapping symbols", section 4.5.4, ARM AAELF64 version 0.05). | |
1445 | Note that previously, $a and $t has type STT_FUNC (BSF_OBJECT flag), | |
1446 | and $d has type STT_OBJECT (BSF_OBJECT flag). Now all three are untyped. */ | |
1447 | ||
1448 | /* Create a new mapping symbol for the transition to STATE. */ | |
1449 | ||
1450 | static void | |
1451 | make_mapping_symbol (enum mstate state, valueT value, fragS * frag) | |
1452 | { | |
1453 | symbolS *symbolP; | |
1454 | const char *symname; | |
1455 | int type; | |
1456 | ||
1457 | switch (state) | |
1458 | { | |
1459 | case MAP_DATA: | |
1460 | symname = "$d"; | |
1461 | type = BSF_NO_FLAGS; | |
1462 | break; | |
1463 | case MAP_INSN: | |
1464 | symname = "$x"; | |
1465 | type = BSF_NO_FLAGS; | |
1466 | break; | |
1467 | default: | |
1468 | abort (); | |
1469 | } | |
1470 | ||
1471 | symbolP = symbol_new (symname, now_seg, value, frag); | |
1472 | symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL; | |
1473 | ||
1474 | /* Save the mapping symbols for future reference. Also check that | |
1475 | we do not place two mapping symbols at the same offset within a | |
1476 | frag. We'll handle overlap between frags in | |
1477 | check_mapping_symbols. | |
1478 | ||
1479 | If .fill or other data filling directive generates zero sized data, | |
1480 | the mapping symbol for the following code will have the same value | |
1481 | as the one generated for the data filling directive. In this case, | |
1482 | we replace the old symbol with the new one at the same address. */ | |
1483 | if (value == 0) | |
1484 | { | |
1485 | if (frag->tc_frag_data.first_map != NULL) | |
1486 | { | |
1487 | know (S_GET_VALUE (frag->tc_frag_data.first_map) == 0); | |
1488 | symbol_remove (frag->tc_frag_data.first_map, &symbol_rootP, | |
1489 | &symbol_lastP); | |
1490 | } | |
1491 | frag->tc_frag_data.first_map = symbolP; | |
1492 | } | |
1493 | if (frag->tc_frag_data.last_map != NULL) | |
1494 | { | |
1495 | know (S_GET_VALUE (frag->tc_frag_data.last_map) <= | |
1496 | S_GET_VALUE (symbolP)); | |
1497 | if (S_GET_VALUE (frag->tc_frag_data.last_map) == S_GET_VALUE (symbolP)) | |
1498 | symbol_remove (frag->tc_frag_data.last_map, &symbol_rootP, | |
1499 | &symbol_lastP); | |
1500 | } | |
1501 | frag->tc_frag_data.last_map = symbolP; | |
1502 | } | |
1503 | ||
1504 | /* We must sometimes convert a region marked as code to data during | |
1505 | code alignment, if an odd number of bytes have to be padded. The | |
1506 | code mapping symbol is pushed to an aligned address. */ | |
1507 | ||
1508 | static void | |
1509 | insert_data_mapping_symbol (enum mstate state, | |
1510 | valueT value, fragS * frag, offsetT bytes) | |
1511 | { | |
1512 | /* If there was already a mapping symbol, remove it. */ | |
1513 | if (frag->tc_frag_data.last_map != NULL | |
1514 | && S_GET_VALUE (frag->tc_frag_data.last_map) == | |
1515 | frag->fr_address + value) | |
1516 | { | |
1517 | symbolS *symp = frag->tc_frag_data.last_map; | |
1518 | ||
1519 | if (value == 0) | |
1520 | { | |
1521 | know (frag->tc_frag_data.first_map == symp); | |
1522 | frag->tc_frag_data.first_map = NULL; | |
1523 | } | |
1524 | frag->tc_frag_data.last_map = NULL; | |
1525 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
1526 | } | |
1527 | ||
1528 | make_mapping_symbol (MAP_DATA, value, frag); | |
1529 | make_mapping_symbol (state, value + bytes, frag); | |
1530 | } | |
1531 | ||
1532 | static void mapping_state_2 (enum mstate state, int max_chars); | |
1533 | ||
1534 | /* Set the mapping state to STATE. Only call this when about to | |
1535 | emit some STATE bytes to the file. */ | |
1536 | ||
1537 | void | |
1538 | mapping_state (enum mstate state) | |
1539 | { | |
1540 | enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate; | |
1541 | ||
a578ef7e JW |
1542 | if (state == MAP_INSN) |
1543 | /* AArch64 instructions require 4-byte alignment. When emitting | |
1544 | instructions into any section, record the appropriate section | |
1545 | alignment. */ | |
1546 | record_alignment (now_seg, 2); | |
1547 | ||
448eb63d RL |
1548 | if (mapstate == state) |
1549 | /* The mapping symbol has already been emitted. | |
1550 | There is nothing else to do. */ | |
1551 | return; | |
1552 | ||
c1baaddf | 1553 | #define TRANSITION(from, to) (mapstate == (from) && state == (to)) |
a97902de RL |
1554 | if (TRANSITION (MAP_UNDEFINED, MAP_DATA) && !subseg_text_p (now_seg)) |
1555 | /* Emit MAP_DATA within executable section in order. Otherwise, it will be | |
c1baaddf | 1556 | evaluated later in the next else. */ |
a06ea964 | 1557 | return; |
c1baaddf RL |
1558 | else if (TRANSITION (MAP_UNDEFINED, MAP_INSN)) |
1559 | { | |
1560 | /* Only add the symbol if the offset is > 0: | |
1561 | if we're at the first frag, check it's size > 0; | |
1562 | if we're not at the first frag, then for sure | |
1563 | the offset is > 0. */ | |
1564 | struct frag *const frag_first = seg_info (now_seg)->frchainP->frch_root; | |
1565 | const int add_symbol = (frag_now != frag_first) | |
1566 | || (frag_now_fix () > 0); | |
1567 | ||
1568 | if (add_symbol) | |
1569 | make_mapping_symbol (MAP_DATA, (valueT) 0, frag_first); | |
1570 | } | |
1571 | #undef TRANSITION | |
a06ea964 NC |
1572 | |
1573 | mapping_state_2 (state, 0); | |
a06ea964 NC |
1574 | } |
1575 | ||
1576 | /* Same as mapping_state, but MAX_CHARS bytes have already been | |
1577 | allocated. Put the mapping symbol that far back. */ | |
1578 | ||
1579 | static void | |
1580 | mapping_state_2 (enum mstate state, int max_chars) | |
1581 | { | |
1582 | enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate; | |
1583 | ||
1584 | if (!SEG_NORMAL (now_seg)) | |
1585 | return; | |
1586 | ||
1587 | if (mapstate == state) | |
1588 | /* The mapping symbol has already been emitted. | |
1589 | There is nothing else to do. */ | |
1590 | return; | |
1591 | ||
1592 | seg_info (now_seg)->tc_segment_info_data.mapstate = state; | |
1593 | make_mapping_symbol (state, (valueT) frag_now_fix () - max_chars, frag_now); | |
1594 | } | |
1595 | #else | |
1596 | #define mapping_state(x) /* nothing */ | |
1597 | #define mapping_state_2(x, y) /* nothing */ | |
1598 | #endif | |
1599 | ||
1600 | /* Directives: sectioning and alignment. */ | |
1601 | ||
1602 | static void | |
1603 | s_bss (int ignore ATTRIBUTE_UNUSED) | |
1604 | { | |
1605 | /* We don't support putting frags in the BSS segment, we fake it by | |
1606 | marking in_bss, then looking at s_skip for clues. */ | |
1607 | subseg_set (bss_section, 0); | |
1608 | demand_empty_rest_of_line (); | |
1609 | mapping_state (MAP_DATA); | |
1610 | } | |
1611 | ||
1612 | static void | |
1613 | s_even (int ignore ATTRIBUTE_UNUSED) | |
1614 | { | |
1615 | /* Never make frag if expect extra pass. */ | |
1616 | if (!need_pass_2) | |
1617 | frag_align (1, 0, 0); | |
1618 | ||
1619 | record_alignment (now_seg, 1); | |
1620 | ||
1621 | demand_empty_rest_of_line (); | |
1622 | } | |
1623 | ||
1624 | /* Directives: Literal pools. */ | |
1625 | ||
1626 | static literal_pool * | |
1627 | find_literal_pool (int size) | |
1628 | { | |
1629 | literal_pool *pool; | |
1630 | ||
1631 | for (pool = list_of_pools; pool != NULL; pool = pool->next) | |
1632 | { | |
1633 | if (pool->section == now_seg | |
1634 | && pool->sub_section == now_subseg && pool->size == size) | |
1635 | break; | |
1636 | } | |
1637 | ||
1638 | return pool; | |
1639 | } | |
1640 | ||
1641 | static literal_pool * | |
1642 | find_or_make_literal_pool (int size) | |
1643 | { | |
1644 | /* Next literal pool ID number. */ | |
1645 | static unsigned int latest_pool_num = 1; | |
1646 | literal_pool *pool; | |
1647 | ||
1648 | pool = find_literal_pool (size); | |
1649 | ||
1650 | if (pool == NULL) | |
1651 | { | |
1652 | /* Create a new pool. */ | |
add39d23 | 1653 | pool = XNEW (literal_pool); |
a06ea964 NC |
1654 | if (!pool) |
1655 | return NULL; | |
1656 | ||
1657 | /* Currently we always put the literal pool in the current text | |
1658 | section. If we were generating "small" model code where we | |
1659 | knew that all code and initialised data was within 1MB then | |
1660 | we could output literals to mergeable, read-only data | |
1661 | sections. */ | |
1662 | ||
1663 | pool->next_free_entry = 0; | |
1664 | pool->section = now_seg; | |
1665 | pool->sub_section = now_subseg; | |
1666 | pool->size = size; | |
1667 | pool->next = list_of_pools; | |
1668 | pool->symbol = NULL; | |
1669 | ||
1670 | /* Add it to the list. */ | |
1671 | list_of_pools = pool; | |
1672 | } | |
1673 | ||
1674 | /* New pools, and emptied pools, will have a NULL symbol. */ | |
1675 | if (pool->symbol == NULL) | |
1676 | { | |
1677 | pool->symbol = symbol_create (FAKE_LABEL_NAME, undefined_section, | |
1678 | (valueT) 0, &zero_address_frag); | |
1679 | pool->id = latest_pool_num++; | |
1680 | } | |
1681 | ||
1682 | /* Done. */ | |
1683 | return pool; | |
1684 | } | |
1685 | ||
1686 | /* Add the literal of size SIZE in *EXP to the relevant literal pool. | |
1687 | Return TRUE on success, otherwise return FALSE. */ | |
1688 | static bfd_boolean | |
1689 | add_to_lit_pool (expressionS *exp, int size) | |
1690 | { | |
1691 | literal_pool *pool; | |
1692 | unsigned int entry; | |
1693 | ||
1694 | pool = find_or_make_literal_pool (size); | |
1695 | ||
1696 | /* Check if this literal value is already in the pool. */ | |
1697 | for (entry = 0; entry < pool->next_free_entry; entry++) | |
1698 | { | |
55d9b4c1 NC |
1699 | expressionS * litexp = & pool->literals[entry].exp; |
1700 | ||
1701 | if ((litexp->X_op == exp->X_op) | |
a06ea964 | 1702 | && (exp->X_op == O_constant) |
55d9b4c1 NC |
1703 | && (litexp->X_add_number == exp->X_add_number) |
1704 | && (litexp->X_unsigned == exp->X_unsigned)) | |
a06ea964 NC |
1705 | break; |
1706 | ||
55d9b4c1 | 1707 | if ((litexp->X_op == exp->X_op) |
a06ea964 | 1708 | && (exp->X_op == O_symbol) |
55d9b4c1 NC |
1709 | && (litexp->X_add_number == exp->X_add_number) |
1710 | && (litexp->X_add_symbol == exp->X_add_symbol) | |
1711 | && (litexp->X_op_symbol == exp->X_op_symbol)) | |
a06ea964 NC |
1712 | break; |
1713 | } | |
1714 | ||
1715 | /* Do we need to create a new entry? */ | |
1716 | if (entry == pool->next_free_entry) | |
1717 | { | |
1718 | if (entry >= MAX_LITERAL_POOL_SIZE) | |
1719 | { | |
1720 | set_syntax_error (_("literal pool overflow")); | |
1721 | return FALSE; | |
1722 | } | |
1723 | ||
55d9b4c1 | 1724 | pool->literals[entry].exp = *exp; |
a06ea964 | 1725 | pool->next_free_entry += 1; |
55d9b4c1 NC |
1726 | if (exp->X_op == O_big) |
1727 | { | |
1728 | /* PR 16688: Bignums are held in a single global array. We must | |
1729 | copy and preserve that value now, before it is overwritten. */ | |
add39d23 TS |
1730 | pool->literals[entry].bignum = XNEWVEC (LITTLENUM_TYPE, |
1731 | exp->X_add_number); | |
55d9b4c1 NC |
1732 | memcpy (pool->literals[entry].bignum, generic_bignum, |
1733 | CHARS_PER_LITTLENUM * exp->X_add_number); | |
1734 | } | |
1735 | else | |
1736 | pool->literals[entry].bignum = NULL; | |
a06ea964 NC |
1737 | } |
1738 | ||
1739 | exp->X_op = O_symbol; | |
1740 | exp->X_add_number = ((int) entry) * size; | |
1741 | exp->X_add_symbol = pool->symbol; | |
1742 | ||
1743 | return TRUE; | |
1744 | } | |
1745 | ||
1746 | /* Can't use symbol_new here, so have to create a symbol and then at | |
33eaf5de | 1747 | a later date assign it a value. That's what these functions do. */ |
a06ea964 NC |
1748 | |
1749 | static void | |
1750 | symbol_locate (symbolS * symbolP, | |
1751 | const char *name,/* It is copied, the caller can modify. */ | |
1752 | segT segment, /* Segment identifier (SEG_<something>). */ | |
1753 | valueT valu, /* Symbol value. */ | |
1754 | fragS * frag) /* Associated fragment. */ | |
1755 | { | |
e57e6ddc | 1756 | size_t name_length; |
a06ea964 NC |
1757 | char *preserved_copy_of_name; |
1758 | ||
1759 | name_length = strlen (name) + 1; /* +1 for \0. */ | |
1760 | obstack_grow (¬es, name, name_length); | |
1761 | preserved_copy_of_name = obstack_finish (¬es); | |
1762 | ||
1763 | #ifdef tc_canonicalize_symbol_name | |
1764 | preserved_copy_of_name = | |
1765 | tc_canonicalize_symbol_name (preserved_copy_of_name); | |
1766 | #endif | |
1767 | ||
1768 | S_SET_NAME (symbolP, preserved_copy_of_name); | |
1769 | ||
1770 | S_SET_SEGMENT (symbolP, segment); | |
1771 | S_SET_VALUE (symbolP, valu); | |
1772 | symbol_clear_list_pointers (symbolP); | |
1773 | ||
1774 | symbol_set_frag (symbolP, frag); | |
1775 | ||
1776 | /* Link to end of symbol chain. */ | |
1777 | { | |
1778 | extern int symbol_table_frozen; | |
1779 | ||
1780 | if (symbol_table_frozen) | |
1781 | abort (); | |
1782 | } | |
1783 | ||
1784 | symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
1785 | ||
1786 | obj_symbol_new_hook (symbolP); | |
1787 | ||
1788 | #ifdef tc_symbol_new_hook | |
1789 | tc_symbol_new_hook (symbolP); | |
1790 | #endif | |
1791 | ||
1792 | #ifdef DEBUG_SYMS | |
1793 | verify_symbol_chain (symbol_rootP, symbol_lastP); | |
1794 | #endif /* DEBUG_SYMS */ | |
1795 | } | |
1796 | ||
1797 | ||
1798 | static void | |
1799 | s_ltorg (int ignored ATTRIBUTE_UNUSED) | |
1800 | { | |
1801 | unsigned int entry; | |
1802 | literal_pool *pool; | |
1803 | char sym_name[20]; | |
1804 | int align; | |
1805 | ||
67a32447 | 1806 | for (align = 2; align <= 4; align++) |
a06ea964 NC |
1807 | { |
1808 | int size = 1 << align; | |
1809 | ||
1810 | pool = find_literal_pool (size); | |
1811 | if (pool == NULL || pool->symbol == NULL || pool->next_free_entry == 0) | |
1812 | continue; | |
1813 | ||
a06ea964 NC |
1814 | /* Align pool as you have word accesses. |
1815 | Only make a frag if we have to. */ | |
1816 | if (!need_pass_2) | |
1817 | frag_align (align, 0, 0); | |
1818 | ||
7ea12e5c NC |
1819 | mapping_state (MAP_DATA); |
1820 | ||
a06ea964 NC |
1821 | record_alignment (now_seg, align); |
1822 | ||
1823 | sprintf (sym_name, "$$lit_\002%x", pool->id); | |
1824 | ||
1825 | symbol_locate (pool->symbol, sym_name, now_seg, | |
1826 | (valueT) frag_now_fix (), frag_now); | |
1827 | symbol_table_insert (pool->symbol); | |
1828 | ||
1829 | for (entry = 0; entry < pool->next_free_entry; entry++) | |
55d9b4c1 NC |
1830 | { |
1831 | expressionS * exp = & pool->literals[entry].exp; | |
1832 | ||
1833 | if (exp->X_op == O_big) | |
1834 | { | |
1835 | /* PR 16688: Restore the global bignum value. */ | |
1836 | gas_assert (pool->literals[entry].bignum != NULL); | |
1837 | memcpy (generic_bignum, pool->literals[entry].bignum, | |
1838 | CHARS_PER_LITTLENUM * exp->X_add_number); | |
1839 | } | |
1840 | ||
1841 | /* First output the expression in the instruction to the pool. */ | |
1842 | emit_expr (exp, size); /* .word|.xword */ | |
1843 | ||
1844 | if (exp->X_op == O_big) | |
1845 | { | |
1846 | free (pool->literals[entry].bignum); | |
1847 | pool->literals[entry].bignum = NULL; | |
1848 | } | |
1849 | } | |
a06ea964 NC |
1850 | |
1851 | /* Mark the pool as empty. */ | |
1852 | pool->next_free_entry = 0; | |
1853 | pool->symbol = NULL; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | #ifdef OBJ_ELF | |
1858 | /* Forward declarations for functions below, in the MD interface | |
1859 | section. */ | |
1860 | static fixS *fix_new_aarch64 (fragS *, int, short, expressionS *, int, int); | |
1861 | static struct reloc_table_entry * find_reloc_table_entry (char **); | |
1862 | ||
1863 | /* Directives: Data. */ | |
1864 | /* N.B. the support for relocation suffix in this directive needs to be | |
1865 | implemented properly. */ | |
1866 | ||
1867 | static void | |
1868 | s_aarch64_elf_cons (int nbytes) | |
1869 | { | |
1870 | expressionS exp; | |
1871 | ||
1872 | #ifdef md_flush_pending_output | |
1873 | md_flush_pending_output (); | |
1874 | #endif | |
1875 | ||
1876 | if (is_it_end_of_statement ()) | |
1877 | { | |
1878 | demand_empty_rest_of_line (); | |
1879 | return; | |
1880 | } | |
1881 | ||
1882 | #ifdef md_cons_align | |
1883 | md_cons_align (nbytes); | |
1884 | #endif | |
1885 | ||
1886 | mapping_state (MAP_DATA); | |
1887 | do | |
1888 | { | |
1889 | struct reloc_table_entry *reloc; | |
1890 | ||
1891 | expression (&exp); | |
1892 | ||
1893 | if (exp.X_op != O_symbol) | |
1894 | emit_expr (&exp, (unsigned int) nbytes); | |
1895 | else | |
1896 | { | |
1897 | skip_past_char (&input_line_pointer, '#'); | |
1898 | if (skip_past_char (&input_line_pointer, ':')) | |
1899 | { | |
1900 | reloc = find_reloc_table_entry (&input_line_pointer); | |
1901 | if (reloc == NULL) | |
1902 | as_bad (_("unrecognized relocation suffix")); | |
1903 | else | |
1904 | as_bad (_("unimplemented relocation suffix")); | |
1905 | ignore_rest_of_line (); | |
1906 | return; | |
1907 | } | |
1908 | else | |
1909 | emit_expr (&exp, (unsigned int) nbytes); | |
1910 | } | |
1911 | } | |
1912 | while (*input_line_pointer++ == ','); | |
1913 | ||
1914 | /* Put terminator back into stream. */ | |
1915 | input_line_pointer--; | |
1916 | demand_empty_rest_of_line (); | |
1917 | } | |
1918 | ||
1919 | #endif /* OBJ_ELF */ | |
1920 | ||
1921 | /* Output a 32-bit word, but mark as an instruction. */ | |
1922 | ||
1923 | static void | |
1924 | s_aarch64_inst (int ignored ATTRIBUTE_UNUSED) | |
1925 | { | |
1926 | expressionS exp; | |
1927 | ||
1928 | #ifdef md_flush_pending_output | |
1929 | md_flush_pending_output (); | |
1930 | #endif | |
1931 | ||
1932 | if (is_it_end_of_statement ()) | |
1933 | { | |
1934 | demand_empty_rest_of_line (); | |
1935 | return; | |
1936 | } | |
1937 | ||
a97902de | 1938 | /* Sections are assumed to start aligned. In executable section, there is no |
c1baaddf RL |
1939 | MAP_DATA symbol pending. So we only align the address during |
1940 | MAP_DATA --> MAP_INSN transition. | |
eb9d6cc9 | 1941 | For other sections, this is not guaranteed. */ |
c1baaddf | 1942 | enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate; |
eb9d6cc9 | 1943 | if (!need_pass_2 && subseg_text_p (now_seg) && mapstate == MAP_DATA) |
a06ea964 | 1944 | frag_align_code (2, 0); |
c1baaddf | 1945 | |
a06ea964 NC |
1946 | #ifdef OBJ_ELF |
1947 | mapping_state (MAP_INSN); | |
1948 | #endif | |
1949 | ||
1950 | do | |
1951 | { | |
1952 | expression (&exp); | |
1953 | if (exp.X_op != O_constant) | |
1954 | { | |
1955 | as_bad (_("constant expression required")); | |
1956 | ignore_rest_of_line (); | |
1957 | return; | |
1958 | } | |
1959 | ||
1960 | if (target_big_endian) | |
1961 | { | |
1962 | unsigned int val = exp.X_add_number; | |
1963 | exp.X_add_number = SWAP_32 (val); | |
1964 | } | |
1965 | emit_expr (&exp, 4); | |
1966 | } | |
1967 | while (*input_line_pointer++ == ','); | |
1968 | ||
1969 | /* Put terminator back into stream. */ | |
1970 | input_line_pointer--; | |
1971 | demand_empty_rest_of_line (); | |
1972 | } | |
1973 | ||
1974 | #ifdef OBJ_ELF | |
43a357f9 RL |
1975 | /* Emit BFD_RELOC_AARCH64_TLSDESC_ADD on the next ADD instruction. */ |
1976 | ||
1977 | static void | |
1978 | s_tlsdescadd (int ignored ATTRIBUTE_UNUSED) | |
1979 | { | |
1980 | expressionS exp; | |
1981 | ||
1982 | expression (&exp); | |
1983 | frag_grow (4); | |
1984 | fix_new_aarch64 (frag_now, frag_more (0) - frag_now->fr_literal, 4, &exp, 0, | |
1985 | BFD_RELOC_AARCH64_TLSDESC_ADD); | |
1986 | ||
1987 | demand_empty_rest_of_line (); | |
1988 | } | |
1989 | ||
a06ea964 NC |
1990 | /* Emit BFD_RELOC_AARCH64_TLSDESC_CALL on the next BLR instruction. */ |
1991 | ||
1992 | static void | |
1993 | s_tlsdesccall (int ignored ATTRIBUTE_UNUSED) | |
1994 | { | |
1995 | expressionS exp; | |
1996 | ||
1997 | /* Since we're just labelling the code, there's no need to define a | |
1998 | mapping symbol. */ | |
1999 | expression (&exp); | |
2000 | /* Make sure there is enough room in this frag for the following | |
2001 | blr. This trick only works if the blr follows immediately after | |
2002 | the .tlsdesc directive. */ | |
2003 | frag_grow (4); | |
2004 | fix_new_aarch64 (frag_now, frag_more (0) - frag_now->fr_literal, 4, &exp, 0, | |
2005 | BFD_RELOC_AARCH64_TLSDESC_CALL); | |
2006 | ||
2007 | demand_empty_rest_of_line (); | |
2008 | } | |
43a357f9 RL |
2009 | |
2010 | /* Emit BFD_RELOC_AARCH64_TLSDESC_LDR on the next LDR instruction. */ | |
2011 | ||
2012 | static void | |
2013 | s_tlsdescldr (int ignored ATTRIBUTE_UNUSED) | |
2014 | { | |
2015 | expressionS exp; | |
2016 | ||
2017 | expression (&exp); | |
2018 | frag_grow (4); | |
2019 | fix_new_aarch64 (frag_now, frag_more (0) - frag_now->fr_literal, 4, &exp, 0, | |
2020 | BFD_RELOC_AARCH64_TLSDESC_LDR); | |
2021 | ||
2022 | demand_empty_rest_of_line (); | |
2023 | } | |
a06ea964 NC |
2024 | #endif /* OBJ_ELF */ |
2025 | ||
2026 | static void s_aarch64_arch (int); | |
2027 | static void s_aarch64_cpu (int); | |
ae527cd8 | 2028 | static void s_aarch64_arch_extension (int); |
a06ea964 NC |
2029 | |
2030 | /* This table describes all the machine specific pseudo-ops the assembler | |
2031 | has to support. The fields are: | |
2032 | pseudo-op name without dot | |
2033 | function to call to execute this pseudo-op | |
2034 | Integer arg to pass to the function. */ | |
2035 | ||
2036 | const pseudo_typeS md_pseudo_table[] = { | |
2037 | /* Never called because '.req' does not start a line. */ | |
2038 | {"req", s_req, 0}, | |
2039 | {"unreq", s_unreq, 0}, | |
2040 | {"bss", s_bss, 0}, | |
2041 | {"even", s_even, 0}, | |
2042 | {"ltorg", s_ltorg, 0}, | |
2043 | {"pool", s_ltorg, 0}, | |
2044 | {"cpu", s_aarch64_cpu, 0}, | |
2045 | {"arch", s_aarch64_arch, 0}, | |
ae527cd8 | 2046 | {"arch_extension", s_aarch64_arch_extension, 0}, |
a06ea964 NC |
2047 | {"inst", s_aarch64_inst, 0}, |
2048 | #ifdef OBJ_ELF | |
43a357f9 | 2049 | {"tlsdescadd", s_tlsdescadd, 0}, |
a06ea964 | 2050 | {"tlsdesccall", s_tlsdesccall, 0}, |
43a357f9 | 2051 | {"tlsdescldr", s_tlsdescldr, 0}, |
a06ea964 NC |
2052 | {"word", s_aarch64_elf_cons, 4}, |
2053 | {"long", s_aarch64_elf_cons, 4}, | |
2054 | {"xword", s_aarch64_elf_cons, 8}, | |
2055 | {"dword", s_aarch64_elf_cons, 8}, | |
2056 | #endif | |
2057 | {0, 0, 0} | |
2058 | }; | |
2059 | \f | |
2060 | ||
2061 | /* Check whether STR points to a register name followed by a comma or the | |
2062 | end of line; REG_TYPE indicates which register types are checked | |
2063 | against. Return TRUE if STR is such a register name; otherwise return | |
2064 | FALSE. The function does not intend to produce any diagnostics, but since | |
2065 | the register parser aarch64_reg_parse, which is called by this function, | |
2066 | does produce diagnostics, we call clear_error to clear any diagnostics | |
2067 | that may be generated by aarch64_reg_parse. | |
2068 | Also, the function returns FALSE directly if there is any user error | |
2069 | present at the function entry. This prevents the existing diagnostics | |
2070 | state from being spoiled. | |
2071 | The function currently serves parse_constant_immediate and | |
2072 | parse_big_immediate only. */ | |
2073 | static bfd_boolean | |
2074 | reg_name_p (char *str, aarch64_reg_type reg_type) | |
2075 | { | |
2076 | int reg; | |
2077 | ||
2078 | /* Prevent the diagnostics state from being spoiled. */ | |
2079 | if (error_p ()) | |
2080 | return FALSE; | |
2081 | ||
2082 | reg = aarch64_reg_parse (&str, reg_type, NULL, NULL); | |
2083 | ||
2084 | /* Clear the parsing error that may be set by the reg parser. */ | |
2085 | clear_error (); | |
2086 | ||
2087 | if (reg == PARSE_FAIL) | |
2088 | return FALSE; | |
2089 | ||
2090 | skip_whitespace (str); | |
2091 | if (*str == ',' || is_end_of_line[(unsigned int) *str]) | |
2092 | return TRUE; | |
2093 | ||
2094 | return FALSE; | |
2095 | } | |
2096 | ||
2097 | /* Parser functions used exclusively in instruction operands. */ | |
2098 | ||
2099 | /* Parse an immediate expression which may not be constant. | |
2100 | ||
2101 | To prevent the expression parser from pushing a register name | |
2102 | into the symbol table as an undefined symbol, firstly a check is | |
1799c0d0 RS |
2103 | done to find out whether STR is a register of type REG_TYPE followed |
2104 | by a comma or the end of line. Return FALSE if STR is such a string. */ | |
a06ea964 NC |
2105 | |
2106 | static bfd_boolean | |
1799c0d0 RS |
2107 | parse_immediate_expression (char **str, expressionS *exp, |
2108 | aarch64_reg_type reg_type) | |
a06ea964 | 2109 | { |
1799c0d0 | 2110 | if (reg_name_p (*str, reg_type)) |
a06ea964 NC |
2111 | { |
2112 | set_recoverable_error (_("immediate operand required")); | |
2113 | return FALSE; | |
2114 | } | |
2115 | ||
2116 | my_get_expression (exp, str, GE_OPT_PREFIX, 1); | |
2117 | ||
2118 | if (exp->X_op == O_absent) | |
2119 | { | |
2120 | set_fatal_syntax_error (_("missing immediate expression")); | |
2121 | return FALSE; | |
2122 | } | |
2123 | ||
2124 | return TRUE; | |
2125 | } | |
2126 | ||
2127 | /* Constant immediate-value read function for use in insn parsing. | |
2128 | STR points to the beginning of the immediate (with the optional | |
1799c0d0 RS |
2129 | leading #); *VAL receives the value. REG_TYPE says which register |
2130 | names should be treated as registers rather than as symbolic immediates. | |
a06ea964 NC |
2131 | |
2132 | Return TRUE on success; otherwise return FALSE. */ | |
2133 | ||
2134 | static bfd_boolean | |
1799c0d0 | 2135 | parse_constant_immediate (char **str, int64_t *val, aarch64_reg_type reg_type) |
a06ea964 NC |
2136 | { |
2137 | expressionS exp; | |
2138 | ||
1799c0d0 | 2139 | if (! parse_immediate_expression (str, &exp, reg_type)) |
a06ea964 NC |
2140 | return FALSE; |
2141 | ||
2142 | if (exp.X_op != O_constant) | |
2143 | { | |
2144 | set_syntax_error (_("constant expression required")); | |
2145 | return FALSE; | |
2146 | } | |
2147 | ||
2148 | *val = exp.X_add_number; | |
2149 | return TRUE; | |
2150 | } | |
2151 | ||
2152 | static uint32_t | |
2153 | encode_imm_float_bits (uint32_t imm) | |
2154 | { | |
2155 | return ((imm >> 19) & 0x7f) /* b[25:19] -> b[6:0] */ | |
2156 | | ((imm >> (31 - 7)) & 0x80); /* b[31] -> b[7] */ | |
2157 | } | |
2158 | ||
62b0d0d5 YZ |
2159 | /* Return TRUE if the single-precision floating-point value encoded in IMM |
2160 | can be expressed in the AArch64 8-bit signed floating-point format with | |
2161 | 3-bit exponent and normalized 4 bits of precision; in other words, the | |
2162 | floating-point value must be expressable as | |
2163 | (+/-) n / 16 * power (2, r) | |
2164 | where n and r are integers such that 16 <= n <=31 and -3 <= r <= 4. */ | |
2165 | ||
a06ea964 NC |
2166 | static bfd_boolean |
2167 | aarch64_imm_float_p (uint32_t imm) | |
2168 | { | |
62b0d0d5 YZ |
2169 | /* If a single-precision floating-point value has the following bit |
2170 | pattern, it can be expressed in the AArch64 8-bit floating-point | |
2171 | format: | |
2172 | ||
2173 | 3 32222222 2221111111111 | |
a06ea964 | 2174 | 1 09876543 21098765432109876543210 |
62b0d0d5 YZ |
2175 | n Eeeeeexx xxxx0000000000000000000 |
2176 | ||
2177 | where n, e and each x are either 0 or 1 independently, with | |
2178 | E == ~ e. */ | |
a06ea964 | 2179 | |
62b0d0d5 YZ |
2180 | uint32_t pattern; |
2181 | ||
2182 | /* Prepare the pattern for 'Eeeeee'. */ | |
2183 | if (((imm >> 30) & 0x1) == 0) | |
2184 | pattern = 0x3e000000; | |
a06ea964 | 2185 | else |
62b0d0d5 YZ |
2186 | pattern = 0x40000000; |
2187 | ||
2188 | return (imm & 0x7ffff) == 0 /* lower 19 bits are 0. */ | |
2189 | && ((imm & 0x7e000000) == pattern); /* bits 25 - 29 == ~ bit 30. */ | |
a06ea964 NC |
2190 | } |
2191 | ||
04a3379a RS |
2192 | /* Return TRUE if the IEEE double value encoded in IMM can be expressed |
2193 | as an IEEE float without any loss of precision. Store the value in | |
2194 | *FPWORD if so. */ | |
62b0d0d5 | 2195 | |
a06ea964 | 2196 | static bfd_boolean |
04a3379a | 2197 | can_convert_double_to_float (uint64_t imm, uint32_t *fpword) |
62b0d0d5 YZ |
2198 | { |
2199 | /* If a double-precision floating-point value has the following bit | |
04a3379a | 2200 | pattern, it can be expressed in a float: |
62b0d0d5 | 2201 | |
04a3379a RS |
2202 | 6 66655555555 5544 44444444 33333333 33222222 22221111 111111 |
2203 | 3 21098765432 1098 76543210 98765432 10987654 32109876 54321098 76543210 | |
2204 | n E~~~eeeeeee ssss ssssssss ssssssss SSS00000 00000000 00000000 00000000 | |
62b0d0d5 | 2205 | |
04a3379a RS |
2206 | -----------------------------> nEeeeeee esssssss ssssssss sssssSSS |
2207 | if Eeee_eeee != 1111_1111 | |
2208 | ||
2209 | where n, e, s and S are either 0 or 1 independently and where ~ is the | |
2210 | inverse of E. */ | |
62b0d0d5 YZ |
2211 | |
2212 | uint32_t pattern; | |
2213 | uint32_t high32 = imm >> 32; | |
04a3379a | 2214 | uint32_t low32 = imm; |
62b0d0d5 | 2215 | |
04a3379a RS |
2216 | /* Lower 29 bits need to be 0s. */ |
2217 | if ((imm & 0x1fffffff) != 0) | |
62b0d0d5 YZ |
2218 | return FALSE; |
2219 | ||
2220 | /* Prepare the pattern for 'Eeeeeeeee'. */ | |
2221 | if (((high32 >> 30) & 0x1) == 0) | |
04a3379a | 2222 | pattern = 0x38000000; |
62b0d0d5 YZ |
2223 | else |
2224 | pattern = 0x40000000; | |
2225 | ||
04a3379a RS |
2226 | /* Check E~~~. */ |
2227 | if ((high32 & 0x78000000) != pattern) | |
62b0d0d5 | 2228 | return FALSE; |
04a3379a RS |
2229 | |
2230 | /* Check Eeee_eeee != 1111_1111. */ | |
2231 | if ((high32 & 0x7ff00000) == 0x47f00000) | |
2232 | return FALSE; | |
2233 | ||
2234 | *fpword = ((high32 & 0xc0000000) /* 1 n bit and 1 E bit. */ | |
2235 | | ((high32 << 3) & 0x3ffffff8) /* 7 e and 20 s bits. */ | |
2236 | | (low32 >> 29)); /* 3 S bits. */ | |
2237 | return TRUE; | |
62b0d0d5 YZ |
2238 | } |
2239 | ||
165d4950 RS |
2240 | /* Return true if we should treat OPERAND as a double-precision |
2241 | floating-point operand rather than a single-precision one. */ | |
2242 | static bfd_boolean | |
2243 | double_precision_operand_p (const aarch64_opnd_info *operand) | |
2244 | { | |
2245 | /* Check for unsuffixed SVE registers, which are allowed | |
2246 | for LDR and STR but not in instructions that require an | |
2247 | immediate. We get better error messages if we arbitrarily | |
2248 | pick one size, parse the immediate normally, and then | |
2249 | report the match failure in the normal way. */ | |
2250 | return (operand->qualifier == AARCH64_OPND_QLF_NIL | |
2251 | || aarch64_get_qualifier_esize (operand->qualifier) == 8); | |
2252 | } | |
2253 | ||
62b0d0d5 YZ |
2254 | /* Parse a floating-point immediate. Return TRUE on success and return the |
2255 | value in *IMMED in the format of IEEE754 single-precision encoding. | |
2256 | *CCP points to the start of the string; DP_P is TRUE when the immediate | |
2257 | is expected to be in double-precision (N.B. this only matters when | |
1799c0d0 RS |
2258 | hexadecimal representation is involved). REG_TYPE says which register |
2259 | names should be treated as registers rather than as symbolic immediates. | |
62b0d0d5 | 2260 | |
874d7e6e RS |
2261 | This routine accepts any IEEE float; it is up to the callers to reject |
2262 | invalid ones. */ | |
62b0d0d5 YZ |
2263 | |
2264 | static bfd_boolean | |
1799c0d0 RS |
2265 | parse_aarch64_imm_float (char **ccp, int *immed, bfd_boolean dp_p, |
2266 | aarch64_reg_type reg_type) | |
a06ea964 NC |
2267 | { |
2268 | char *str = *ccp; | |
2269 | char *fpnum; | |
2270 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
2271 | int found_fpchar = 0; | |
62b0d0d5 YZ |
2272 | int64_t val = 0; |
2273 | unsigned fpword = 0; | |
2274 | bfd_boolean hex_p = FALSE; | |
a06ea964 NC |
2275 | |
2276 | skip_past_char (&str, '#'); | |
2277 | ||
a06ea964 NC |
2278 | fpnum = str; |
2279 | skip_whitespace (fpnum); | |
2280 | ||
2281 | if (strncmp (fpnum, "0x", 2) == 0) | |
62b0d0d5 YZ |
2282 | { |
2283 | /* Support the hexadecimal representation of the IEEE754 encoding. | |
2284 | Double-precision is expected when DP_P is TRUE, otherwise the | |
2285 | representation should be in single-precision. */ | |
1799c0d0 | 2286 | if (! parse_constant_immediate (&str, &val, reg_type)) |
62b0d0d5 YZ |
2287 | goto invalid_fp; |
2288 | ||
2289 | if (dp_p) | |
2290 | { | |
04a3379a | 2291 | if (!can_convert_double_to_float (val, &fpword)) |
62b0d0d5 YZ |
2292 | goto invalid_fp; |
2293 | } | |
2294 | else if ((uint64_t) val > 0xffffffff) | |
2295 | goto invalid_fp; | |
2296 | else | |
2297 | fpword = val; | |
2298 | ||
2299 | hex_p = TRUE; | |
2300 | } | |
a06ea964 NC |
2301 | else |
2302 | { | |
6a9deabe RS |
2303 | if (reg_name_p (str, reg_type)) |
2304 | { | |
2305 | set_recoverable_error (_("immediate operand required")); | |
2306 | return FALSE; | |
2307 | } | |
2308 | ||
62b0d0d5 YZ |
2309 | /* We must not accidentally parse an integer as a floating-point number. |
2310 | Make sure that the value we parse is not an integer by checking for | |
2311 | special characters '.' or 'e'. */ | |
a06ea964 NC |
2312 | for (; *fpnum != '\0' && *fpnum != ' ' && *fpnum != '\n'; fpnum++) |
2313 | if (*fpnum == '.' || *fpnum == 'e' || *fpnum == 'E') | |
2314 | { | |
2315 | found_fpchar = 1; | |
2316 | break; | |
2317 | } | |
2318 | ||
2319 | if (!found_fpchar) | |
2320 | return FALSE; | |
2321 | } | |
2322 | ||
62b0d0d5 | 2323 | if (! hex_p) |
a06ea964 | 2324 | { |
a06ea964 NC |
2325 | int i; |
2326 | ||
62b0d0d5 YZ |
2327 | if ((str = atof_ieee (str, 's', words)) == NULL) |
2328 | goto invalid_fp; | |
2329 | ||
a06ea964 NC |
2330 | /* Our FP word must be 32 bits (single-precision FP). */ |
2331 | for (i = 0; i < 32 / LITTLENUM_NUMBER_OF_BITS; i++) | |
2332 | { | |
2333 | fpword <<= LITTLENUM_NUMBER_OF_BITS; | |
2334 | fpword |= words[i]; | |
2335 | } | |
62b0d0d5 | 2336 | } |
a06ea964 | 2337 | |
874d7e6e RS |
2338 | *immed = fpword; |
2339 | *ccp = str; | |
2340 | return TRUE; | |
a06ea964 NC |
2341 | |
2342 | invalid_fp: | |
2343 | set_fatal_syntax_error (_("invalid floating-point constant")); | |
2344 | return FALSE; | |
2345 | } | |
2346 | ||
2347 | /* Less-generic immediate-value read function with the possibility of loading | |
2348 | a big (64-bit) immediate, as required by AdvSIMD Modified immediate | |
2349 | instructions. | |
2350 | ||
2351 | To prevent the expression parser from pushing a register name into the | |
2352 | symbol table as an undefined symbol, a check is firstly done to find | |
1799c0d0 RS |
2353 | out whether STR is a register of type REG_TYPE followed by a comma or |
2354 | the end of line. Return FALSE if STR is such a register. */ | |
a06ea964 NC |
2355 | |
2356 | static bfd_boolean | |
1799c0d0 | 2357 | parse_big_immediate (char **str, int64_t *imm, aarch64_reg_type reg_type) |
a06ea964 NC |
2358 | { |
2359 | char *ptr = *str; | |
2360 | ||
1799c0d0 | 2361 | if (reg_name_p (ptr, reg_type)) |
a06ea964 NC |
2362 | { |
2363 | set_syntax_error (_("immediate operand required")); | |
2364 | return FALSE; | |
2365 | } | |
2366 | ||
2367 | my_get_expression (&inst.reloc.exp, &ptr, GE_OPT_PREFIX, 1); | |
2368 | ||
2369 | if (inst.reloc.exp.X_op == O_constant) | |
2370 | *imm = inst.reloc.exp.X_add_number; | |
2371 | ||
2372 | *str = ptr; | |
2373 | ||
2374 | return TRUE; | |
2375 | } | |
2376 | ||
2377 | /* Set operand IDX of the *INSTR that needs a GAS internal fixup. | |
2378 | if NEED_LIBOPCODES is non-zero, the fixup will need | |
2379 | assistance from the libopcodes. */ | |
2380 | ||
2381 | static inline void | |
2382 | aarch64_set_gas_internal_fixup (struct reloc *reloc, | |
2383 | const aarch64_opnd_info *operand, | |
2384 | int need_libopcodes_p) | |
2385 | { | |
2386 | reloc->type = BFD_RELOC_AARCH64_GAS_INTERNAL_FIXUP; | |
2387 | reloc->opnd = operand->type; | |
2388 | if (need_libopcodes_p) | |
2389 | reloc->need_libopcodes_p = 1; | |
2390 | }; | |
2391 | ||
2392 | /* Return TRUE if the instruction needs to be fixed up later internally by | |
2393 | the GAS; otherwise return FALSE. */ | |
2394 | ||
2395 | static inline bfd_boolean | |
2396 | aarch64_gas_internal_fixup_p (void) | |
2397 | { | |
2398 | return inst.reloc.type == BFD_RELOC_AARCH64_GAS_INTERNAL_FIXUP; | |
2399 | } | |
2400 | ||
33eaf5de | 2401 | /* Assign the immediate value to the relevant field in *OPERAND if |
a06ea964 NC |
2402 | RELOC->EXP is a constant expression; otherwise, flag that *OPERAND |
2403 | needs an internal fixup in a later stage. | |
2404 | ADDR_OFF_P determines whether it is the field ADDR.OFFSET.IMM or | |
2405 | IMM.VALUE that may get assigned with the constant. */ | |
2406 | static inline void | |
2407 | assign_imm_if_const_or_fixup_later (struct reloc *reloc, | |
2408 | aarch64_opnd_info *operand, | |
2409 | int addr_off_p, | |
2410 | int need_libopcodes_p, | |
2411 | int skip_p) | |
2412 | { | |
2413 | if (reloc->exp.X_op == O_constant) | |
2414 | { | |
2415 | if (addr_off_p) | |
2416 | operand->addr.offset.imm = reloc->exp.X_add_number; | |
2417 | else | |
2418 | operand->imm.value = reloc->exp.X_add_number; | |
2419 | reloc->type = BFD_RELOC_UNUSED; | |
2420 | } | |
2421 | else | |
2422 | { | |
2423 | aarch64_set_gas_internal_fixup (reloc, operand, need_libopcodes_p); | |
2424 | /* Tell libopcodes to ignore this operand or not. This is helpful | |
2425 | when one of the operands needs to be fixed up later but we need | |
2426 | libopcodes to check the other operands. */ | |
2427 | operand->skip = skip_p; | |
2428 | } | |
2429 | } | |
2430 | ||
2431 | /* Relocation modifiers. Each entry in the table contains the textual | |
2432 | name for the relocation which may be placed before a symbol used as | |
2433 | a load/store offset, or add immediate. It must be surrounded by a | |
2434 | leading and trailing colon, for example: | |
2435 | ||
2436 | ldr x0, [x1, #:rello:varsym] | |
2437 | add x0, x1, #:rello:varsym */ | |
2438 | ||
2439 | struct reloc_table_entry | |
2440 | { | |
2441 | const char *name; | |
2442 | int pc_rel; | |
6f4a313b | 2443 | bfd_reloc_code_real_type adr_type; |
a06ea964 NC |
2444 | bfd_reloc_code_real_type adrp_type; |
2445 | bfd_reloc_code_real_type movw_type; | |
2446 | bfd_reloc_code_real_type add_type; | |
2447 | bfd_reloc_code_real_type ldst_type; | |
74ad790c | 2448 | bfd_reloc_code_real_type ld_literal_type; |
a06ea964 NC |
2449 | }; |
2450 | ||
2451 | static struct reloc_table_entry reloc_table[] = { | |
2452 | /* Low 12 bits of absolute address: ADD/i and LDR/STR */ | |
2453 | {"lo12", 0, | |
6f4a313b | 2454 | 0, /* adr_type */ |
a06ea964 NC |
2455 | 0, |
2456 | 0, | |
2457 | BFD_RELOC_AARCH64_ADD_LO12, | |
74ad790c MS |
2458 | BFD_RELOC_AARCH64_LDST_LO12, |
2459 | 0}, | |
a06ea964 NC |
2460 | |
2461 | /* Higher 21 bits of pc-relative page offset: ADRP */ | |
2462 | {"pg_hi21", 1, | |
6f4a313b | 2463 | 0, /* adr_type */ |
a06ea964 NC |
2464 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
2465 | 0, | |
2466 | 0, | |
74ad790c | 2467 | 0, |
a06ea964 NC |
2468 | 0}, |
2469 | ||
2470 | /* Higher 21 bits of pc-relative page offset: ADRP, no check */ | |
2471 | {"pg_hi21_nc", 1, | |
6f4a313b | 2472 | 0, /* adr_type */ |
a06ea964 NC |
2473 | BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL, |
2474 | 0, | |
2475 | 0, | |
74ad790c | 2476 | 0, |
a06ea964 NC |
2477 | 0}, |
2478 | ||
2479 | /* Most significant bits 0-15 of unsigned address/value: MOVZ */ | |
2480 | {"abs_g0", 0, | |
6f4a313b | 2481 | 0, /* adr_type */ |
a06ea964 NC |
2482 | 0, |
2483 | BFD_RELOC_AARCH64_MOVW_G0, | |
2484 | 0, | |
74ad790c | 2485 | 0, |
a06ea964 NC |
2486 | 0}, |
2487 | ||
2488 | /* Most significant bits 0-15 of signed address/value: MOVN/Z */ | |
2489 | {"abs_g0_s", 0, | |
6f4a313b | 2490 | 0, /* adr_type */ |
a06ea964 NC |
2491 | 0, |
2492 | BFD_RELOC_AARCH64_MOVW_G0_S, | |
2493 | 0, | |
74ad790c | 2494 | 0, |
a06ea964 NC |
2495 | 0}, |
2496 | ||
2497 | /* Less significant bits 0-15 of address/value: MOVK, no check */ | |
2498 | {"abs_g0_nc", 0, | |
6f4a313b | 2499 | 0, /* adr_type */ |
a06ea964 NC |
2500 | 0, |
2501 | BFD_RELOC_AARCH64_MOVW_G0_NC, | |
2502 | 0, | |
74ad790c | 2503 | 0, |
a06ea964 NC |
2504 | 0}, |
2505 | ||
2506 | /* Most significant bits 16-31 of unsigned address/value: MOVZ */ | |
2507 | {"abs_g1", 0, | |
6f4a313b | 2508 | 0, /* adr_type */ |
a06ea964 NC |
2509 | 0, |
2510 | BFD_RELOC_AARCH64_MOVW_G1, | |
2511 | 0, | |
74ad790c | 2512 | 0, |
a06ea964 NC |
2513 | 0}, |
2514 | ||
2515 | /* Most significant bits 16-31 of signed address/value: MOVN/Z */ | |
2516 | {"abs_g1_s", 0, | |
6f4a313b | 2517 | 0, /* adr_type */ |
a06ea964 NC |
2518 | 0, |
2519 | BFD_RELOC_AARCH64_MOVW_G1_S, | |
2520 | 0, | |
74ad790c | 2521 | 0, |
a06ea964 NC |
2522 | 0}, |
2523 | ||
2524 | /* Less significant bits 16-31 of address/value: MOVK, no check */ | |
2525 | {"abs_g1_nc", 0, | |
6f4a313b | 2526 | 0, /* adr_type */ |
a06ea964 NC |
2527 | 0, |
2528 | BFD_RELOC_AARCH64_MOVW_G1_NC, | |
2529 | 0, | |
74ad790c | 2530 | 0, |
a06ea964 NC |
2531 | 0}, |
2532 | ||
2533 | /* Most significant bits 32-47 of unsigned address/value: MOVZ */ | |
2534 | {"abs_g2", 0, | |
6f4a313b | 2535 | 0, /* adr_type */ |
a06ea964 NC |
2536 | 0, |
2537 | BFD_RELOC_AARCH64_MOVW_G2, | |
2538 | 0, | |
74ad790c | 2539 | 0, |
a06ea964 NC |
2540 | 0}, |
2541 | ||
2542 | /* Most significant bits 32-47 of signed address/value: MOVN/Z */ | |
2543 | {"abs_g2_s", 0, | |
6f4a313b | 2544 | 0, /* adr_type */ |
a06ea964 NC |
2545 | 0, |
2546 | BFD_RELOC_AARCH64_MOVW_G2_S, | |
2547 | 0, | |
74ad790c | 2548 | 0, |
a06ea964 NC |
2549 | 0}, |
2550 | ||
2551 | /* Less significant bits 32-47 of address/value: MOVK, no check */ | |
2552 | {"abs_g2_nc", 0, | |
6f4a313b | 2553 | 0, /* adr_type */ |
a06ea964 NC |
2554 | 0, |
2555 | BFD_RELOC_AARCH64_MOVW_G2_NC, | |
2556 | 0, | |
74ad790c | 2557 | 0, |
a06ea964 NC |
2558 | 0}, |
2559 | ||
2560 | /* Most significant bits 48-63 of signed/unsigned address/value: MOVZ */ | |
2561 | {"abs_g3", 0, | |
6f4a313b | 2562 | 0, /* adr_type */ |
a06ea964 NC |
2563 | 0, |
2564 | BFD_RELOC_AARCH64_MOVW_G3, | |
2565 | 0, | |
74ad790c | 2566 | 0, |
a06ea964 | 2567 | 0}, |
4aa2c5e2 | 2568 | |
a06ea964 NC |
2569 | /* Get to the page containing GOT entry for a symbol. */ |
2570 | {"got", 1, | |
6f4a313b | 2571 | 0, /* adr_type */ |
a06ea964 NC |
2572 | BFD_RELOC_AARCH64_ADR_GOT_PAGE, |
2573 | 0, | |
2574 | 0, | |
74ad790c | 2575 | 0, |
4aa2c5e2 MS |
2576 | BFD_RELOC_AARCH64_GOT_LD_PREL19}, |
2577 | ||
a06ea964 NC |
2578 | /* 12 bit offset into the page containing GOT entry for that symbol. */ |
2579 | {"got_lo12", 0, | |
6f4a313b | 2580 | 0, /* adr_type */ |
a06ea964 NC |
2581 | 0, |
2582 | 0, | |
2583 | 0, | |
74ad790c MS |
2584 | BFD_RELOC_AARCH64_LD_GOT_LO12_NC, |
2585 | 0}, | |
a06ea964 | 2586 | |
ca632371 RL |
2587 | /* 0-15 bits of address/value: MOVk, no check. */ |
2588 | {"gotoff_g0_nc", 0, | |
2589 | 0, /* adr_type */ | |
2590 | 0, | |
2591 | BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC, | |
2592 | 0, | |
2593 | 0, | |
2594 | 0}, | |
2595 | ||
654248e7 RL |
2596 | /* Most significant bits 16-31 of address/value: MOVZ. */ |
2597 | {"gotoff_g1", 0, | |
2598 | 0, /* adr_type */ | |
2599 | 0, | |
2600 | BFD_RELOC_AARCH64_MOVW_GOTOFF_G1, | |
2601 | 0, | |
2602 | 0, | |
2603 | 0}, | |
2604 | ||
87f5fbcc RL |
2605 | /* 15 bit offset into the page containing GOT entry for that symbol. */ |
2606 | {"gotoff_lo15", 0, | |
2607 | 0, /* adr_type */ | |
2608 | 0, | |
2609 | 0, | |
2610 | 0, | |
2611 | BFD_RELOC_AARCH64_LD64_GOTOFF_LO15, | |
2612 | 0}, | |
2613 | ||
3b957e5b RL |
2614 | /* Get to the page containing GOT TLS entry for a symbol */ |
2615 | {"gottprel_g0_nc", 0, | |
2616 | 0, /* adr_type */ | |
2617 | 0, | |
2618 | BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC, | |
2619 | 0, | |
2620 | 0, | |
2621 | 0}, | |
2622 | ||
2623 | /* Get to the page containing GOT TLS entry for a symbol */ | |
2624 | {"gottprel_g1", 0, | |
2625 | 0, /* adr_type */ | |
2626 | 0, | |
2627 | BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1, | |
2628 | 0, | |
2629 | 0, | |
2630 | 0}, | |
2631 | ||
a06ea964 NC |
2632 | /* Get to the page containing GOT TLS entry for a symbol */ |
2633 | {"tlsgd", 0, | |
3c12b054 | 2634 | BFD_RELOC_AARCH64_TLSGD_ADR_PREL21, /* adr_type */ |
a06ea964 NC |
2635 | BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21, |
2636 | 0, | |
2637 | 0, | |
74ad790c | 2638 | 0, |
a06ea964 NC |
2639 | 0}, |
2640 | ||
2641 | /* 12 bit offset into the page containing GOT TLS entry for a symbol */ | |
2642 | {"tlsgd_lo12", 0, | |
6f4a313b | 2643 | 0, /* adr_type */ |
a06ea964 NC |
2644 | 0, |
2645 | 0, | |
2646 | BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC, | |
74ad790c | 2647 | 0, |
a06ea964 NC |
2648 | 0}, |
2649 | ||
3e8286c0 RL |
2650 | /* Lower 16 bits address/value: MOVk. */ |
2651 | {"tlsgd_g0_nc", 0, | |
2652 | 0, /* adr_type */ | |
2653 | 0, | |
2654 | BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC, | |
2655 | 0, | |
2656 | 0, | |
2657 | 0}, | |
2658 | ||
1aa66fb1 RL |
2659 | /* Most significant bits 16-31 of address/value: MOVZ. */ |
2660 | {"tlsgd_g1", 0, | |
2661 | 0, /* adr_type */ | |
2662 | 0, | |
2663 | BFD_RELOC_AARCH64_TLSGD_MOVW_G1, | |
2664 | 0, | |
2665 | 0, | |
2666 | 0}, | |
2667 | ||
a06ea964 NC |
2668 | /* Get to the page containing GOT TLS entry for a symbol */ |
2669 | {"tlsdesc", 0, | |
389b8029 | 2670 | BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21, /* adr_type */ |
418009c2 | 2671 | BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21, |
a06ea964 NC |
2672 | 0, |
2673 | 0, | |
74ad790c | 2674 | 0, |
1ada945d | 2675 | BFD_RELOC_AARCH64_TLSDESC_LD_PREL19}, |
a06ea964 NC |
2676 | |
2677 | /* 12 bit offset into the page containing GOT TLS entry for a symbol */ | |
2678 | {"tlsdesc_lo12", 0, | |
6f4a313b | 2679 | 0, /* adr_type */ |
a06ea964 NC |
2680 | 0, |
2681 | 0, | |
2682 | BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC, | |
74ad790c MS |
2683 | BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC, |
2684 | 0}, | |
a06ea964 | 2685 | |
6c37fedc JW |
2686 | /* Get to the page containing GOT TLS entry for a symbol. |
2687 | The same as GD, we allocate two consecutive GOT slots | |
2688 | for module index and module offset, the only difference | |
33eaf5de | 2689 | with GD is the module offset should be initialized to |
6c37fedc JW |
2690 | zero without any outstanding runtime relocation. */ |
2691 | {"tlsldm", 0, | |
2692 | BFD_RELOC_AARCH64_TLSLD_ADR_PREL21, /* adr_type */ | |
1107e076 | 2693 | BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21, |
6c37fedc JW |
2694 | 0, |
2695 | 0, | |
2696 | 0, | |
2697 | 0}, | |
2698 | ||
a12fad50 JW |
2699 | /* 12 bit offset into the page containing GOT TLS entry for a symbol */ |
2700 | {"tlsldm_lo12_nc", 0, | |
2701 | 0, /* adr_type */ | |
2702 | 0, | |
2703 | 0, | |
2704 | BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC, | |
2705 | 0, | |
2706 | 0}, | |
2707 | ||
70151fb5 JW |
2708 | /* 12 bit offset into the module TLS base address. */ |
2709 | {"dtprel_lo12", 0, | |
2710 | 0, /* adr_type */ | |
2711 | 0, | |
2712 | 0, | |
2713 | BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12, | |
4c562523 | 2714 | BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12, |
70151fb5 JW |
2715 | 0}, |
2716 | ||
13289c10 JW |
2717 | /* Same as dtprel_lo12, no overflow check. */ |
2718 | {"dtprel_lo12_nc", 0, | |
2719 | 0, /* adr_type */ | |
2720 | 0, | |
2721 | 0, | |
2722 | BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC, | |
4c562523 | 2723 | BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC, |
13289c10 JW |
2724 | 0}, |
2725 | ||
49df5539 JW |
2726 | /* bits[23:12] of offset to the module TLS base address. */ |
2727 | {"dtprel_hi12", 0, | |
2728 | 0, /* adr_type */ | |
2729 | 0, | |
2730 | 0, | |
2731 | BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12, | |
2732 | 0, | |
2733 | 0}, | |
2734 | ||
2735 | /* bits[15:0] of offset to the module TLS base address. */ | |
2736 | {"dtprel_g0", 0, | |
2737 | 0, /* adr_type */ | |
2738 | 0, | |
2739 | BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0, | |
2740 | 0, | |
2741 | 0, | |
2742 | 0}, | |
2743 | ||
2744 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0. */ | |
2745 | {"dtprel_g0_nc", 0, | |
2746 | 0, /* adr_type */ | |
2747 | 0, | |
2748 | BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC, | |
2749 | 0, | |
2750 | 0, | |
2751 | 0}, | |
2752 | ||
2753 | /* bits[31:16] of offset to the module TLS base address. */ | |
2754 | {"dtprel_g1", 0, | |
2755 | 0, /* adr_type */ | |
2756 | 0, | |
2757 | BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1, | |
2758 | 0, | |
2759 | 0, | |
2760 | 0}, | |
2761 | ||
2762 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1. */ | |
2763 | {"dtprel_g1_nc", 0, | |
2764 | 0, /* adr_type */ | |
2765 | 0, | |
2766 | BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC, | |
2767 | 0, | |
2768 | 0, | |
2769 | 0}, | |
2770 | ||
2771 | /* bits[47:32] of offset to the module TLS base address. */ | |
2772 | {"dtprel_g2", 0, | |
2773 | 0, /* adr_type */ | |
2774 | 0, | |
2775 | BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2, | |
2776 | 0, | |
2777 | 0, | |
2778 | 0}, | |
2779 | ||
43a357f9 RL |
2780 | /* Lower 16 bit offset into GOT entry for a symbol */ |
2781 | {"tlsdesc_off_g0_nc", 0, | |
2782 | 0, /* adr_type */ | |
2783 | 0, | |
2784 | BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC, | |
2785 | 0, | |
2786 | 0, | |
2787 | 0}, | |
2788 | ||
2789 | /* Higher 16 bit offset into GOT entry for a symbol */ | |
2790 | {"tlsdesc_off_g1", 0, | |
2791 | 0, /* adr_type */ | |
2792 | 0, | |
2793 | BFD_RELOC_AARCH64_TLSDESC_OFF_G1, | |
2794 | 0, | |
2795 | 0, | |
2796 | 0}, | |
2797 | ||
a06ea964 NC |
2798 | /* Get to the page containing GOT TLS entry for a symbol */ |
2799 | {"gottprel", 0, | |
6f4a313b | 2800 | 0, /* adr_type */ |
a06ea964 NC |
2801 | BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21, |
2802 | 0, | |
2803 | 0, | |
74ad790c | 2804 | 0, |
043bf05a | 2805 | BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19}, |
a06ea964 NC |
2806 | |
2807 | /* 12 bit offset into the page containing GOT TLS entry for a symbol */ | |
2808 | {"gottprel_lo12", 0, | |
6f4a313b | 2809 | 0, /* adr_type */ |
a06ea964 NC |
2810 | 0, |
2811 | 0, | |
2812 | 0, | |
74ad790c MS |
2813 | BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC, |
2814 | 0}, | |
a06ea964 NC |
2815 | |
2816 | /* Get tp offset for a symbol. */ | |
2817 | {"tprel", 0, | |
6f4a313b | 2818 | 0, /* adr_type */ |
a06ea964 NC |
2819 | 0, |
2820 | 0, | |
2821 | BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12, | |
74ad790c | 2822 | 0, |
a06ea964 NC |
2823 | 0}, |
2824 | ||
2825 | /* Get tp offset for a symbol. */ | |
2826 | {"tprel_lo12", 0, | |
6f4a313b | 2827 | 0, /* adr_type */ |
a06ea964 NC |
2828 | 0, |
2829 | 0, | |
2830 | BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12, | |
74ad790c | 2831 | 0, |
a06ea964 NC |
2832 | 0}, |
2833 | ||
2834 | /* Get tp offset for a symbol. */ | |
2835 | {"tprel_hi12", 0, | |
6f4a313b | 2836 | 0, /* adr_type */ |
a06ea964 NC |
2837 | 0, |
2838 | 0, | |
2839 | BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12, | |
74ad790c | 2840 | 0, |
a06ea964 NC |
2841 | 0}, |
2842 | ||
2843 | /* Get tp offset for a symbol. */ | |
2844 | {"tprel_lo12_nc", 0, | |
6f4a313b | 2845 | 0, /* adr_type */ |
a06ea964 NC |
2846 | 0, |
2847 | 0, | |
2848 | BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC, | |
74ad790c | 2849 | 0, |
a06ea964 NC |
2850 | 0}, |
2851 | ||
2852 | /* Most significant bits 32-47 of address/value: MOVZ. */ | |
2853 | {"tprel_g2", 0, | |
6f4a313b | 2854 | 0, /* adr_type */ |
a06ea964 NC |
2855 | 0, |
2856 | BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2, | |
2857 | 0, | |
74ad790c | 2858 | 0, |
a06ea964 NC |
2859 | 0}, |
2860 | ||
2861 | /* Most significant bits 16-31 of address/value: MOVZ. */ | |
2862 | {"tprel_g1", 0, | |
6f4a313b | 2863 | 0, /* adr_type */ |
a06ea964 NC |
2864 | 0, |
2865 | BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1, | |
2866 | 0, | |
74ad790c | 2867 | 0, |
a06ea964 NC |
2868 | 0}, |
2869 | ||
2870 | /* Most significant bits 16-31 of address/value: MOVZ, no check. */ | |
2871 | {"tprel_g1_nc", 0, | |
6f4a313b | 2872 | 0, /* adr_type */ |
a06ea964 NC |
2873 | 0, |
2874 | BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC, | |
2875 | 0, | |
74ad790c | 2876 | 0, |
a06ea964 NC |
2877 | 0}, |
2878 | ||
2879 | /* Most significant bits 0-15 of address/value: MOVZ. */ | |
2880 | {"tprel_g0", 0, | |
6f4a313b | 2881 | 0, /* adr_type */ |
a06ea964 NC |
2882 | 0, |
2883 | BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0, | |
2884 | 0, | |
74ad790c | 2885 | 0, |
a06ea964 NC |
2886 | 0}, |
2887 | ||
2888 | /* Most significant bits 0-15 of address/value: MOVZ, no check. */ | |
2889 | {"tprel_g0_nc", 0, | |
6f4a313b | 2890 | 0, /* adr_type */ |
a06ea964 NC |
2891 | 0, |
2892 | BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC, | |
2893 | 0, | |
74ad790c | 2894 | 0, |
a06ea964 | 2895 | 0}, |
a921b5bd JW |
2896 | |
2897 | /* 15bit offset from got entry to base address of GOT table. */ | |
2898 | {"gotpage_lo15", 0, | |
2899 | 0, | |
2900 | 0, | |
2901 | 0, | |
2902 | 0, | |
2903 | BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15, | |
2904 | 0}, | |
3d715ce4 JW |
2905 | |
2906 | /* 14bit offset from got entry to base address of GOT table. */ | |
2907 | {"gotpage_lo14", 0, | |
2908 | 0, | |
2909 | 0, | |
2910 | 0, | |
2911 | 0, | |
2912 | BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14, | |
2913 | 0}, | |
a06ea964 NC |
2914 | }; |
2915 | ||
2916 | /* Given the address of a pointer pointing to the textual name of a | |
2917 | relocation as may appear in assembler source, attempt to find its | |
2918 | details in reloc_table. The pointer will be updated to the character | |
2919 | after the trailing colon. On failure, NULL will be returned; | |
2920 | otherwise return the reloc_table_entry. */ | |
2921 | ||
2922 | static struct reloc_table_entry * | |
2923 | find_reloc_table_entry (char **str) | |
2924 | { | |
2925 | unsigned int i; | |
2926 | for (i = 0; i < ARRAY_SIZE (reloc_table); i++) | |
2927 | { | |
2928 | int length = strlen (reloc_table[i].name); | |
2929 | ||
2930 | if (strncasecmp (reloc_table[i].name, *str, length) == 0 | |
2931 | && (*str)[length] == ':') | |
2932 | { | |
2933 | *str += (length + 1); | |
2934 | return &reloc_table[i]; | |
2935 | } | |
2936 | } | |
2937 | ||
2938 | return NULL; | |
2939 | } | |
2940 | ||
2941 | /* Mode argument to parse_shift and parser_shifter_operand. */ | |
2942 | enum parse_shift_mode | |
2943 | { | |
98907a70 | 2944 | SHIFTED_NONE, /* no shifter allowed */ |
a06ea964 NC |
2945 | SHIFTED_ARITH_IMM, /* "rn{,lsl|lsr|asl|asr|uxt|sxt #n}" or |
2946 | "#imm{,lsl #n}" */ | |
2947 | SHIFTED_LOGIC_IMM, /* "rn{,lsl|lsr|asl|asr|ror #n}" or | |
2948 | "#imm" */ | |
2949 | SHIFTED_LSL, /* bare "lsl #n" */ | |
2442d846 | 2950 | SHIFTED_MUL, /* bare "mul #n" */ |
a06ea964 | 2951 | SHIFTED_LSL_MSL, /* "lsl|msl #n" */ |
98907a70 | 2952 | SHIFTED_MUL_VL, /* "mul vl" */ |
a06ea964 NC |
2953 | SHIFTED_REG_OFFSET /* [su]xtw|sxtx {#n} or lsl #n */ |
2954 | }; | |
2955 | ||
2956 | /* Parse a <shift> operator on an AArch64 data processing instruction. | |
2957 | Return TRUE on success; otherwise return FALSE. */ | |
2958 | static bfd_boolean | |
2959 | parse_shift (char **str, aarch64_opnd_info *operand, enum parse_shift_mode mode) | |
2960 | { | |
2961 | const struct aarch64_name_value_pair *shift_op; | |
2962 | enum aarch64_modifier_kind kind; | |
2963 | expressionS exp; | |
2964 | int exp_has_prefix; | |
2965 | char *s = *str; | |
2966 | char *p = s; | |
2967 | ||
2968 | for (p = *str; ISALPHA (*p); p++) | |
2969 | ; | |
2970 | ||
2971 | if (p == *str) | |
2972 | { | |
2973 | set_syntax_error (_("shift expression expected")); | |
2974 | return FALSE; | |
2975 | } | |
2976 | ||
2977 | shift_op = hash_find_n (aarch64_shift_hsh, *str, p - *str); | |
2978 | ||
2979 | if (shift_op == NULL) | |
2980 | { | |
2981 | set_syntax_error (_("shift operator expected")); | |
2982 | return FALSE; | |
2983 | } | |
2984 | ||
2985 | kind = aarch64_get_operand_modifier (shift_op); | |
2986 | ||
2987 | if (kind == AARCH64_MOD_MSL && mode != SHIFTED_LSL_MSL) | |
2988 | { | |
2989 | set_syntax_error (_("invalid use of 'MSL'")); | |
2990 | return FALSE; | |
2991 | } | |
2992 | ||
2442d846 | 2993 | if (kind == AARCH64_MOD_MUL |
98907a70 RS |
2994 | && mode != SHIFTED_MUL |
2995 | && mode != SHIFTED_MUL_VL) | |
2442d846 RS |
2996 | { |
2997 | set_syntax_error (_("invalid use of 'MUL'")); | |
2998 | return FALSE; | |
2999 | } | |
3000 | ||
a06ea964 NC |
3001 | switch (mode) |
3002 | { | |
3003 | case SHIFTED_LOGIC_IMM: | |
3004 | if (aarch64_extend_operator_p (kind) == TRUE) | |
3005 | { | |
3006 | set_syntax_error (_("extending shift is not permitted")); | |
3007 | return FALSE; | |
3008 | } | |
3009 | break; | |
3010 | ||
3011 | case SHIFTED_ARITH_IMM: | |
3012 | if (kind == AARCH64_MOD_ROR) | |
3013 | { | |
3014 | set_syntax_error (_("'ROR' shift is not permitted")); | |
3015 | return FALSE; | |
3016 | } | |
3017 | break; | |
3018 | ||
3019 | case SHIFTED_LSL: | |
3020 | if (kind != AARCH64_MOD_LSL) | |
3021 | { | |
3022 | set_syntax_error (_("only 'LSL' shift is permitted")); | |
3023 | return FALSE; | |
3024 | } | |
3025 | break; | |
3026 | ||
2442d846 RS |
3027 | case SHIFTED_MUL: |
3028 | if (kind != AARCH64_MOD_MUL) | |
3029 | { | |
3030 | set_syntax_error (_("only 'MUL' is permitted")); | |
3031 | return FALSE; | |
3032 | } | |
3033 | break; | |
3034 | ||
98907a70 RS |
3035 | case SHIFTED_MUL_VL: |
3036 | /* "MUL VL" consists of two separate tokens. Require the first | |
3037 | token to be "MUL" and look for a following "VL". */ | |
3038 | if (kind == AARCH64_MOD_MUL) | |
3039 | { | |
3040 | skip_whitespace (p); | |
3041 | if (strncasecmp (p, "vl", 2) == 0 && !ISALPHA (p[2])) | |
3042 | { | |
3043 | p += 2; | |
3044 | kind = AARCH64_MOD_MUL_VL; | |
3045 | break; | |
3046 | } | |
3047 | } | |
3048 | set_syntax_error (_("only 'MUL VL' is permitted")); | |
3049 | return FALSE; | |
3050 | ||
a06ea964 NC |
3051 | case SHIFTED_REG_OFFSET: |
3052 | if (kind != AARCH64_MOD_UXTW && kind != AARCH64_MOD_LSL | |
3053 | && kind != AARCH64_MOD_SXTW && kind != AARCH64_MOD_SXTX) | |
3054 | { | |
3055 | set_fatal_syntax_error | |
3056 | (_("invalid shift for the register offset addressing mode")); | |
3057 | return FALSE; | |
3058 | } | |
3059 | break; | |
3060 | ||
3061 | case SHIFTED_LSL_MSL: | |
3062 | if (kind != AARCH64_MOD_LSL && kind != AARCH64_MOD_MSL) | |
3063 | { | |
3064 | set_syntax_error (_("invalid shift operator")); | |
3065 | return FALSE; | |
3066 | } | |
3067 | break; | |
3068 | ||
3069 | default: | |
3070 | abort (); | |
3071 | } | |
3072 | ||
3073 | /* Whitespace can appear here if the next thing is a bare digit. */ | |
3074 | skip_whitespace (p); | |
3075 | ||
3076 | /* Parse shift amount. */ | |
3077 | exp_has_prefix = 0; | |
98907a70 | 3078 | if ((mode == SHIFTED_REG_OFFSET && *p == ']') || kind == AARCH64_MOD_MUL_VL) |
a06ea964 NC |
3079 | exp.X_op = O_absent; |
3080 | else | |
3081 | { | |
3082 | if (is_immediate_prefix (*p)) | |
3083 | { | |
3084 | p++; | |
3085 | exp_has_prefix = 1; | |
3086 | } | |
3087 | my_get_expression (&exp, &p, GE_NO_PREFIX, 0); | |
3088 | } | |
98907a70 RS |
3089 | if (kind == AARCH64_MOD_MUL_VL) |
3090 | /* For consistency, give MUL VL the same shift amount as an implicit | |
3091 | MUL #1. */ | |
3092 | operand->shifter.amount = 1; | |
3093 | else if (exp.X_op == O_absent) | |
a06ea964 NC |
3094 | { |
3095 | if (aarch64_extend_operator_p (kind) == FALSE || exp_has_prefix) | |
3096 | { | |
3097 | set_syntax_error (_("missing shift amount")); | |
3098 | return FALSE; | |
3099 | } | |
3100 | operand->shifter.amount = 0; | |
3101 | } | |
3102 | else if (exp.X_op != O_constant) | |
3103 | { | |
3104 | set_syntax_error (_("constant shift amount required")); | |
3105 | return FALSE; | |
3106 | } | |
2442d846 RS |
3107 | /* For parsing purposes, MUL #n has no inherent range. The range |
3108 | depends on the operand and will be checked by operand-specific | |
3109 | routines. */ | |
3110 | else if (kind != AARCH64_MOD_MUL | |
3111 | && (exp.X_add_number < 0 || exp.X_add_number > 63)) | |
a06ea964 NC |
3112 | { |
3113 | set_fatal_syntax_error (_("shift amount out of range 0 to 63")); | |
3114 | return FALSE; | |
3115 | } | |
3116 | else | |
3117 | { | |
3118 | operand->shifter.amount = exp.X_add_number; | |
3119 | operand->shifter.amount_present = 1; | |
3120 | } | |
3121 | ||
3122 | operand->shifter.operator_present = 1; | |
3123 | operand->shifter.kind = kind; | |
3124 | ||
3125 | *str = p; | |
3126 | return TRUE; | |
3127 | } | |
3128 | ||
3129 | /* Parse a <shifter_operand> for a data processing instruction: | |
3130 | ||
3131 | #<immediate> | |
3132 | #<immediate>, LSL #imm | |
3133 | ||
3134 | Validation of immediate operands is deferred to md_apply_fix. | |
3135 | ||
3136 | Return TRUE on success; otherwise return FALSE. */ | |
3137 | ||
3138 | static bfd_boolean | |
3139 | parse_shifter_operand_imm (char **str, aarch64_opnd_info *operand, | |
3140 | enum parse_shift_mode mode) | |
3141 | { | |
3142 | char *p; | |
3143 | ||
3144 | if (mode != SHIFTED_ARITH_IMM && mode != SHIFTED_LOGIC_IMM) | |
3145 | return FALSE; | |
3146 | ||
3147 | p = *str; | |
3148 | ||
3149 | /* Accept an immediate expression. */ | |
3150 | if (! my_get_expression (&inst.reloc.exp, &p, GE_OPT_PREFIX, 1)) | |
3151 | return FALSE; | |
3152 | ||
3153 | /* Accept optional LSL for arithmetic immediate values. */ | |
3154 | if (mode == SHIFTED_ARITH_IMM && skip_past_comma (&p)) | |
3155 | if (! parse_shift (&p, operand, SHIFTED_LSL)) | |
3156 | return FALSE; | |
3157 | ||
3158 | /* Not accept any shifter for logical immediate values. */ | |
3159 | if (mode == SHIFTED_LOGIC_IMM && skip_past_comma (&p) | |
3160 | && parse_shift (&p, operand, mode)) | |
3161 | { | |
3162 | set_syntax_error (_("unexpected shift operator")); | |
3163 | return FALSE; | |
3164 | } | |
3165 | ||
3166 | *str = p; | |
3167 | return TRUE; | |
3168 | } | |
3169 | ||
3170 | /* Parse a <shifter_operand> for a data processing instruction: | |
3171 | ||
3172 | <Rm> | |
3173 | <Rm>, <shift> | |
3174 | #<immediate> | |
3175 | #<immediate>, LSL #imm | |
3176 | ||
3177 | where <shift> is handled by parse_shift above, and the last two | |
3178 | cases are handled by the function above. | |
3179 | ||
3180 | Validation of immediate operands is deferred to md_apply_fix. | |
3181 | ||
3182 | Return TRUE on success; otherwise return FALSE. */ | |
3183 | ||
3184 | static bfd_boolean | |
3185 | parse_shifter_operand (char **str, aarch64_opnd_info *operand, | |
3186 | enum parse_shift_mode mode) | |
3187 | { | |
e1b988bb RS |
3188 | const reg_entry *reg; |
3189 | aarch64_opnd_qualifier_t qualifier; | |
a06ea964 NC |
3190 | enum aarch64_operand_class opd_class |
3191 | = aarch64_get_operand_class (operand->type); | |
3192 | ||
e1b988bb RS |
3193 | reg = aarch64_reg_parse_32_64 (str, &qualifier); |
3194 | if (reg) | |
a06ea964 NC |
3195 | { |
3196 | if (opd_class == AARCH64_OPND_CLASS_IMMEDIATE) | |
3197 | { | |
3198 | set_syntax_error (_("unexpected register in the immediate operand")); | |
3199 | return FALSE; | |
3200 | } | |
3201 | ||
e1b988bb | 3202 | if (!aarch64_check_reg_type (reg, REG_TYPE_R_Z)) |
a06ea964 | 3203 | { |
e1b988bb | 3204 | set_syntax_error (_(get_reg_expected_msg (REG_TYPE_R_Z))); |
a06ea964 NC |
3205 | return FALSE; |
3206 | } | |
3207 | ||
e1b988bb RS |
3208 | operand->reg.regno = reg->number; |
3209 | operand->qualifier = qualifier; | |
a06ea964 NC |
3210 | |
3211 | /* Accept optional shift operation on register. */ | |
3212 | if (! skip_past_comma (str)) | |
3213 | return TRUE; | |
3214 | ||
3215 | if (! parse_shift (str, operand, mode)) | |
3216 | return FALSE; | |
3217 | ||
3218 | return TRUE; | |
3219 | } | |
3220 | else if (opd_class == AARCH64_OPND_CLASS_MODIFIED_REG) | |
3221 | { | |
3222 | set_syntax_error | |
3223 | (_("integer register expected in the extended/shifted operand " | |
3224 | "register")); | |
3225 | return FALSE; | |
3226 | } | |
3227 | ||
3228 | /* We have a shifted immediate variable. */ | |
3229 | return parse_shifter_operand_imm (str, operand, mode); | |
3230 | } | |
3231 | ||
3232 | /* Return TRUE on success; return FALSE otherwise. */ | |
3233 | ||
3234 | static bfd_boolean | |
3235 | parse_shifter_operand_reloc (char **str, aarch64_opnd_info *operand, | |
3236 | enum parse_shift_mode mode) | |
3237 | { | |
3238 | char *p = *str; | |
3239 | ||
3240 | /* Determine if we have the sequence of characters #: or just : | |
3241 | coming next. If we do, then we check for a :rello: relocation | |
3242 | modifier. If we don't, punt the whole lot to | |
3243 | parse_shifter_operand. */ | |
3244 | ||
3245 | if ((p[0] == '#' && p[1] == ':') || p[0] == ':') | |
3246 | { | |
3247 | struct reloc_table_entry *entry; | |
3248 | ||
3249 | if (p[0] == '#') | |
3250 | p += 2; | |
3251 | else | |
3252 | p++; | |
3253 | *str = p; | |
3254 | ||
3255 | /* Try to parse a relocation. Anything else is an error. */ | |
3256 | if (!(entry = find_reloc_table_entry (str))) | |
3257 | { | |
3258 | set_syntax_error (_("unknown relocation modifier")); | |
3259 | return FALSE; | |
3260 | } | |
3261 | ||
3262 | if (entry->add_type == 0) | |
3263 | { | |
3264 | set_syntax_error | |
3265 | (_("this relocation modifier is not allowed on this instruction")); | |
3266 | return FALSE; | |
3267 | } | |
3268 | ||
3269 | /* Save str before we decompose it. */ | |
3270 | p = *str; | |
3271 | ||
3272 | /* Next, we parse the expression. */ | |
3273 | if (! my_get_expression (&inst.reloc.exp, str, GE_NO_PREFIX, 1)) | |
3274 | return FALSE; | |
3275 | ||
3276 | /* Record the relocation type (use the ADD variant here). */ | |
3277 | inst.reloc.type = entry->add_type; | |
3278 | inst.reloc.pc_rel = entry->pc_rel; | |
3279 | ||
3280 | /* If str is empty, we've reached the end, stop here. */ | |
3281 | if (**str == '\0') | |
3282 | return TRUE; | |
3283 | ||
55d9b4c1 | 3284 | /* Otherwise, we have a shifted reloc modifier, so rewind to |
a06ea964 NC |
3285 | recover the variable name and continue parsing for the shifter. */ |
3286 | *str = p; | |
3287 | return parse_shifter_operand_imm (str, operand, mode); | |
3288 | } | |
3289 | ||
3290 | return parse_shifter_operand (str, operand, mode); | |
3291 | } | |
3292 | ||
3293 | /* Parse all forms of an address expression. Information is written | |
3294 | to *OPERAND and/or inst.reloc. | |
3295 | ||
3296 | The A64 instruction set has the following addressing modes: | |
3297 | ||
3298 | Offset | |
4df068de RS |
3299 | [base] // in SIMD ld/st structure |
3300 | [base{,#0}] // in ld/st exclusive | |
a06ea964 NC |
3301 | [base{,#imm}] |
3302 | [base,Xm{,LSL #imm}] | |
3303 | [base,Xm,SXTX {#imm}] | |
3304 | [base,Wm,(S|U)XTW {#imm}] | |
3305 | Pre-indexed | |
3306 | [base,#imm]! | |
3307 | Post-indexed | |
3308 | [base],#imm | |
4df068de | 3309 | [base],Xm // in SIMD ld/st structure |
a06ea964 NC |
3310 | PC-relative (literal) |
3311 | label | |
4df068de | 3312 | SVE: |
98907a70 | 3313 | [base,#imm,MUL VL] |
4df068de RS |
3314 | [base,Zm.D{,LSL #imm}] |
3315 | [base,Zm.S,(S|U)XTW {#imm}] | |
3316 | [base,Zm.D,(S|U)XTW {#imm}] // ignores top 32 bits of Zm.D elements | |
3317 | [Zn.S,#imm] | |
3318 | [Zn.D,#imm] | |
3319 | [Zn.S,Zm.S{,LSL #imm}] // in ADR | |
3320 | [Zn.D,Zm.D{,LSL #imm}] // in ADR | |
3321 | [Zn.D,Zm.D,(S|U)XTW {#imm}] // in ADR | |
a06ea964 NC |
3322 | |
3323 | (As a convenience, the notation "=immediate" is permitted in conjunction | |
3324 | with the pc-relative literal load instructions to automatically place an | |
3325 | immediate value or symbolic address in a nearby literal pool and generate | |
3326 | a hidden label which references it.) | |
3327 | ||
3328 | Upon a successful parsing, the address structure in *OPERAND will be | |
3329 | filled in the following way: | |
3330 | ||
3331 | .base_regno = <base> | |
3332 | .offset.is_reg // 1 if the offset is a register | |
3333 | .offset.imm = <imm> | |
3334 | .offset.regno = <Rm> | |
3335 | ||
3336 | For different addressing modes defined in the A64 ISA: | |
3337 | ||
3338 | Offset | |
3339 | .pcrel=0; .preind=1; .postind=0; .writeback=0 | |
3340 | Pre-indexed | |
3341 | .pcrel=0; .preind=1; .postind=0; .writeback=1 | |
3342 | Post-indexed | |
3343 | .pcrel=0; .preind=0; .postind=1; .writeback=1 | |
3344 | PC-relative (literal) | |
3345 | .pcrel=1; .preind=1; .postind=0; .writeback=0 | |
3346 | ||
3347 | The shift/extension information, if any, will be stored in .shifter. | |
4df068de RS |
3348 | The base and offset qualifiers will be stored in *BASE_QUALIFIER and |
3349 | *OFFSET_QUALIFIER respectively, with NIL being used if there's no | |
3350 | corresponding register. | |
a06ea964 | 3351 | |
4df068de | 3352 | BASE_TYPE says which types of base register should be accepted and |
98907a70 RS |
3353 | OFFSET_TYPE says the same for offset registers. IMM_SHIFT_MODE |
3354 | is the type of shifter that is allowed for immediate offsets, | |
3355 | or SHIFTED_NONE if none. | |
3356 | ||
3357 | In all other respects, it is the caller's responsibility to check | |
3358 | for addressing modes not supported by the instruction, and to set | |
3359 | inst.reloc.type. */ | |
a06ea964 NC |
3360 | |
3361 | static bfd_boolean | |
4df068de RS |
3362 | parse_address_main (char **str, aarch64_opnd_info *operand, |
3363 | aarch64_opnd_qualifier_t *base_qualifier, | |
3364 | aarch64_opnd_qualifier_t *offset_qualifier, | |
98907a70 RS |
3365 | aarch64_reg_type base_type, aarch64_reg_type offset_type, |
3366 | enum parse_shift_mode imm_shift_mode) | |
a06ea964 NC |
3367 | { |
3368 | char *p = *str; | |
e1b988bb | 3369 | const reg_entry *reg; |
a06ea964 NC |
3370 | expressionS *exp = &inst.reloc.exp; |
3371 | ||
4df068de RS |
3372 | *base_qualifier = AARCH64_OPND_QLF_NIL; |
3373 | *offset_qualifier = AARCH64_OPND_QLF_NIL; | |
a06ea964 NC |
3374 | if (! skip_past_char (&p, '[')) |
3375 | { | |
3376 | /* =immediate or label. */ | |
3377 | operand->addr.pcrel = 1; | |
3378 | operand->addr.preind = 1; | |
3379 | ||
f41aef5f RE |
3380 | /* #:<reloc_op>:<symbol> */ |
3381 | skip_past_char (&p, '#'); | |
73866052 | 3382 | if (skip_past_char (&p, ':')) |
f41aef5f | 3383 | { |
6f4a313b | 3384 | bfd_reloc_code_real_type ty; |
f41aef5f RE |
3385 | struct reloc_table_entry *entry; |
3386 | ||
3387 | /* Try to parse a relocation modifier. Anything else is | |
3388 | an error. */ | |
3389 | entry = find_reloc_table_entry (&p); | |
3390 | if (! entry) | |
3391 | { | |
3392 | set_syntax_error (_("unknown relocation modifier")); | |
3393 | return FALSE; | |
3394 | } | |
3395 | ||
6f4a313b MS |
3396 | switch (operand->type) |
3397 | { | |
3398 | case AARCH64_OPND_ADDR_PCREL21: | |
3399 | /* adr */ | |
3400 | ty = entry->adr_type; | |
3401 | break; | |
3402 | ||
3403 | default: | |
74ad790c | 3404 | ty = entry->ld_literal_type; |
6f4a313b MS |
3405 | break; |
3406 | } | |
3407 | ||
3408 | if (ty == 0) | |
f41aef5f RE |
3409 | { |
3410 | set_syntax_error | |
3411 | (_("this relocation modifier is not allowed on this " | |
3412 | "instruction")); | |
3413 | return FALSE; | |
3414 | } | |
3415 | ||
3416 | /* #:<reloc_op>: */ | |
3417 | if (! my_get_expression (exp, &p, GE_NO_PREFIX, 1)) | |
3418 | { | |
3419 | set_syntax_error (_("invalid relocation expression")); | |
3420 | return FALSE; | |
3421 | } | |
a06ea964 | 3422 | |
f41aef5f | 3423 | /* #:<reloc_op>:<expr> */ |
6f4a313b MS |
3424 | /* Record the relocation type. */ |
3425 | inst.reloc.type = ty; | |
f41aef5f RE |
3426 | inst.reloc.pc_rel = entry->pc_rel; |
3427 | } | |
3428 | else | |
a06ea964 | 3429 | { |
f41aef5f RE |
3430 | |
3431 | if (skip_past_char (&p, '=')) | |
3432 | /* =immediate; need to generate the literal in the literal pool. */ | |
3433 | inst.gen_lit_pool = 1; | |
3434 | ||
3435 | if (!my_get_expression (exp, &p, GE_NO_PREFIX, 1)) | |
3436 | { | |
3437 | set_syntax_error (_("invalid address")); | |
3438 | return FALSE; | |
3439 | } | |
a06ea964 NC |
3440 | } |
3441 | ||
3442 | *str = p; | |
3443 | return TRUE; | |
3444 | } | |
3445 | ||
3446 | /* [ */ | |
3447 | ||
4df068de RS |
3448 | reg = aarch64_addr_reg_parse (&p, base_type, base_qualifier); |
3449 | if (!reg || !aarch64_check_reg_type (reg, base_type)) | |
a06ea964 | 3450 | { |
4df068de | 3451 | set_syntax_error (_(get_reg_expected_msg (base_type))); |
a06ea964 NC |
3452 | return FALSE; |
3453 | } | |
e1b988bb | 3454 | operand->addr.base_regno = reg->number; |
a06ea964 NC |
3455 | |
3456 | /* [Xn */ | |
3457 | if (skip_past_comma (&p)) | |
3458 | { | |
3459 | /* [Xn, */ | |
3460 | operand->addr.preind = 1; | |
3461 | ||
4df068de | 3462 | reg = aarch64_addr_reg_parse (&p, offset_type, offset_qualifier); |
e1b988bb | 3463 | if (reg) |
a06ea964 | 3464 | { |
4df068de | 3465 | if (!aarch64_check_reg_type (reg, offset_type)) |
e1b988bb | 3466 | { |
4df068de | 3467 | set_syntax_error (_(get_reg_expected_msg (offset_type))); |
e1b988bb RS |
3468 | return FALSE; |
3469 | } | |
3470 | ||
a06ea964 | 3471 | /* [Xn,Rm */ |
e1b988bb | 3472 | operand->addr.offset.regno = reg->number; |
a06ea964 NC |
3473 | operand->addr.offset.is_reg = 1; |
3474 | /* Shifted index. */ | |
3475 | if (skip_past_comma (&p)) | |
3476 | { | |
3477 | /* [Xn,Rm, */ | |
3478 | if (! parse_shift (&p, operand, SHIFTED_REG_OFFSET)) | |
3479 | /* Use the diagnostics set in parse_shift, so not set new | |
3480 | error message here. */ | |
3481 | return FALSE; | |
3482 | } | |
3483 | /* We only accept: | |
3484 | [base,Xm{,LSL #imm}] | |
3485 | [base,Xm,SXTX {#imm}] | |
3486 | [base,Wm,(S|U)XTW {#imm}] */ | |
3487 | if (operand->shifter.kind == AARCH64_MOD_NONE | |
3488 | || operand->shifter.kind == AARCH64_MOD_LSL | |
3489 | || operand->shifter.kind == AARCH64_MOD_SXTX) | |
3490 | { | |
4df068de | 3491 | if (*offset_qualifier == AARCH64_OPND_QLF_W) |
a06ea964 NC |
3492 | { |
3493 | set_syntax_error (_("invalid use of 32-bit register offset")); | |
3494 | return FALSE; | |
3495 | } | |
4df068de RS |
3496 | if (aarch64_get_qualifier_esize (*base_qualifier) |
3497 | != aarch64_get_qualifier_esize (*offset_qualifier)) | |
3498 | { | |
3499 | set_syntax_error (_("offset has different size from base")); | |
3500 | return FALSE; | |
3501 | } | |
a06ea964 | 3502 | } |
4df068de | 3503 | else if (*offset_qualifier == AARCH64_OPND_QLF_X) |
a06ea964 NC |
3504 | { |
3505 | set_syntax_error (_("invalid use of 64-bit register offset")); | |
3506 | return FALSE; | |
3507 | } | |
3508 | } | |
3509 | else | |
3510 | { | |
3511 | /* [Xn,#:<reloc_op>:<symbol> */ | |
3512 | skip_past_char (&p, '#'); | |
73866052 | 3513 | if (skip_past_char (&p, ':')) |
a06ea964 NC |
3514 | { |
3515 | struct reloc_table_entry *entry; | |
3516 | ||
3517 | /* Try to parse a relocation modifier. Anything else is | |
3518 | an error. */ | |
3519 | if (!(entry = find_reloc_table_entry (&p))) | |
3520 | { | |
3521 | set_syntax_error (_("unknown relocation modifier")); | |
3522 | return FALSE; | |
3523 | } | |
3524 | ||
3525 | if (entry->ldst_type == 0) | |
3526 | { | |
3527 | set_syntax_error | |
3528 | (_("this relocation modifier is not allowed on this " | |
3529 | "instruction")); | |
3530 | return FALSE; | |
3531 | } | |
3532 | ||
3533 | /* [Xn,#:<reloc_op>: */ | |
3534 | /* We now have the group relocation table entry corresponding to | |
3535 | the name in the assembler source. Next, we parse the | |
3536 | expression. */ | |
3537 | if (! my_get_expression (exp, &p, GE_NO_PREFIX, 1)) | |
3538 | { | |
3539 | set_syntax_error (_("invalid relocation expression")); | |
3540 | return FALSE; | |
3541 | } | |
3542 | ||
3543 | /* [Xn,#:<reloc_op>:<expr> */ | |
3544 | /* Record the load/store relocation type. */ | |
3545 | inst.reloc.type = entry->ldst_type; | |
3546 | inst.reloc.pc_rel = entry->pc_rel; | |
3547 | } | |
98907a70 | 3548 | else |
a06ea964 | 3549 | { |
98907a70 RS |
3550 | if (! my_get_expression (exp, &p, GE_OPT_PREFIX, 1)) |
3551 | { | |
3552 | set_syntax_error (_("invalid expression in the address")); | |
3553 | return FALSE; | |
3554 | } | |
3555 | /* [Xn,<expr> */ | |
3556 | if (imm_shift_mode != SHIFTED_NONE && skip_past_comma (&p)) | |
3557 | /* [Xn,<expr>,<shifter> */ | |
3558 | if (! parse_shift (&p, operand, imm_shift_mode)) | |
3559 | return FALSE; | |
a06ea964 | 3560 | } |
a06ea964 NC |
3561 | } |
3562 | } | |
3563 | ||
3564 | if (! skip_past_char (&p, ']')) | |
3565 | { | |
3566 | set_syntax_error (_("']' expected")); | |
3567 | return FALSE; | |
3568 | } | |
3569 | ||
3570 | if (skip_past_char (&p, '!')) | |
3571 | { | |
3572 | if (operand->addr.preind && operand->addr.offset.is_reg) | |
3573 | { | |
3574 | set_syntax_error (_("register offset not allowed in pre-indexed " | |
3575 | "addressing mode")); | |
3576 | return FALSE; | |
3577 | } | |
3578 | /* [Xn]! */ | |
3579 | operand->addr.writeback = 1; | |
3580 | } | |
3581 | else if (skip_past_comma (&p)) | |
3582 | { | |
3583 | /* [Xn], */ | |
3584 | operand->addr.postind = 1; | |
3585 | operand->addr.writeback = 1; | |
3586 | ||
3587 | if (operand->addr.preind) | |
3588 | { | |
3589 | set_syntax_error (_("cannot combine pre- and post-indexing")); | |
3590 | return FALSE; | |
3591 | } | |
3592 | ||
4df068de | 3593 | reg = aarch64_reg_parse_32_64 (&p, offset_qualifier); |
73866052 | 3594 | if (reg) |
a06ea964 NC |
3595 | { |
3596 | /* [Xn],Xm */ | |
e1b988bb | 3597 | if (!aarch64_check_reg_type (reg, REG_TYPE_R_64)) |
a06ea964 | 3598 | { |
e1b988bb | 3599 | set_syntax_error (_(get_reg_expected_msg (REG_TYPE_R_64))); |
a06ea964 NC |
3600 | return FALSE; |
3601 | } | |
e1b988bb RS |
3602 | |
3603 | operand->addr.offset.regno = reg->number; | |
a06ea964 NC |
3604 | operand->addr.offset.is_reg = 1; |
3605 | } | |
3606 | else if (! my_get_expression (exp, &p, GE_OPT_PREFIX, 1)) | |
3607 | { | |
3608 | /* [Xn],#expr */ | |
3609 | set_syntax_error (_("invalid expression in the address")); | |
3610 | return FALSE; | |
3611 | } | |
3612 | } | |
3613 | ||
3614 | /* If at this point neither .preind nor .postind is set, we have a | |
3615 | bare [Rn]{!}; reject [Rn]! but accept [Rn] as a shorthand for [Rn,#0]. */ | |
3616 | if (operand->addr.preind == 0 && operand->addr.postind == 0) | |
3617 | { | |
3618 | if (operand->addr.writeback) | |
3619 | { | |
3620 | /* Reject [Rn]! */ | |
3621 | set_syntax_error (_("missing offset in the pre-indexed address")); | |
3622 | return FALSE; | |
3623 | } | |
3624 | operand->addr.preind = 1; | |
3625 | inst.reloc.exp.X_op = O_constant; | |
3626 | inst.reloc.exp.X_add_number = 0; | |
3627 | } | |
3628 | ||
3629 | *str = p; | |
3630 | return TRUE; | |
3631 | } | |
3632 | ||
73866052 RS |
3633 | /* Parse a base AArch64 address (as opposed to an SVE one). Return TRUE |
3634 | on success. */ | |
a06ea964 | 3635 | static bfd_boolean |
73866052 | 3636 | parse_address (char **str, aarch64_opnd_info *operand) |
a06ea964 | 3637 | { |
4df068de RS |
3638 | aarch64_opnd_qualifier_t base_qualifier, offset_qualifier; |
3639 | return parse_address_main (str, operand, &base_qualifier, &offset_qualifier, | |
98907a70 | 3640 | REG_TYPE_R64_SP, REG_TYPE_R_Z, SHIFTED_NONE); |
4df068de RS |
3641 | } |
3642 | ||
98907a70 | 3643 | /* Parse an address in which SVE vector registers and MUL VL are allowed. |
4df068de RS |
3644 | The arguments have the same meaning as for parse_address_main. |
3645 | Return TRUE on success. */ | |
3646 | static bfd_boolean | |
3647 | parse_sve_address (char **str, aarch64_opnd_info *operand, | |
3648 | aarch64_opnd_qualifier_t *base_qualifier, | |
3649 | aarch64_opnd_qualifier_t *offset_qualifier) | |
3650 | { | |
3651 | return parse_address_main (str, operand, base_qualifier, offset_qualifier, | |
98907a70 RS |
3652 | REG_TYPE_SVE_BASE, REG_TYPE_SVE_OFFSET, |
3653 | SHIFTED_MUL_VL); | |
a06ea964 NC |
3654 | } |
3655 | ||
3656 | /* Parse an operand for a MOVZ, MOVN or MOVK instruction. | |
3657 | Return TRUE on success; otherwise return FALSE. */ | |
3658 | static bfd_boolean | |
3659 | parse_half (char **str, int *internal_fixup_p) | |
3660 | { | |
671eeb28 | 3661 | char *p = *str; |
a06ea964 | 3662 | |
a06ea964 NC |
3663 | skip_past_char (&p, '#'); |
3664 | ||
3665 | gas_assert (internal_fixup_p); | |
3666 | *internal_fixup_p = 0; | |
3667 | ||
3668 | if (*p == ':') | |
3669 | { | |
3670 | struct reloc_table_entry *entry; | |
3671 | ||
3672 | /* Try to parse a relocation. Anything else is an error. */ | |
3673 | ++p; | |
3674 | if (!(entry = find_reloc_table_entry (&p))) | |
3675 | { | |
3676 | set_syntax_error (_("unknown relocation modifier")); | |
3677 | return FALSE; | |
3678 | } | |
3679 | ||
3680 | if (entry->movw_type == 0) | |
3681 | { | |
3682 | set_syntax_error | |
3683 | (_("this relocation modifier is not allowed on this instruction")); | |
3684 | return FALSE; | |
3685 | } | |
3686 | ||
3687 | inst.reloc.type = entry->movw_type; | |
3688 | } | |
3689 | else | |
3690 | *internal_fixup_p = 1; | |
3691 | ||
a06ea964 NC |
3692 | if (! my_get_expression (&inst.reloc.exp, &p, GE_NO_PREFIX, 1)) |
3693 | return FALSE; | |
3694 | ||
3695 | *str = p; | |
3696 | return TRUE; | |
3697 | } | |
3698 | ||
3699 | /* Parse an operand for an ADRP instruction: | |
3700 | ADRP <Xd>, <label> | |
3701 | Return TRUE on success; otherwise return FALSE. */ | |
3702 | ||
3703 | static bfd_boolean | |
3704 | parse_adrp (char **str) | |
3705 | { | |
3706 | char *p; | |
3707 | ||
3708 | p = *str; | |
3709 | if (*p == ':') | |
3710 | { | |
3711 | struct reloc_table_entry *entry; | |
3712 | ||
3713 | /* Try to parse a relocation. Anything else is an error. */ | |
3714 | ++p; | |
3715 | if (!(entry = find_reloc_table_entry (&p))) | |
3716 | { | |
3717 | set_syntax_error (_("unknown relocation modifier")); | |
3718 | return FALSE; | |
3719 | } | |
3720 | ||
3721 | if (entry->adrp_type == 0) | |
3722 | { | |
3723 | set_syntax_error | |
3724 | (_("this relocation modifier is not allowed on this instruction")); | |
3725 | return FALSE; | |
3726 | } | |
3727 | ||
3728 | inst.reloc.type = entry->adrp_type; | |
3729 | } | |
3730 | else | |
3731 | inst.reloc.type = BFD_RELOC_AARCH64_ADR_HI21_PCREL; | |
3732 | ||
3733 | inst.reloc.pc_rel = 1; | |
3734 | ||
3735 | if (! my_get_expression (&inst.reloc.exp, &p, GE_NO_PREFIX, 1)) | |
3736 | return FALSE; | |
3737 | ||
3738 | *str = p; | |
3739 | return TRUE; | |
3740 | } | |
3741 | ||
3742 | /* Miscellaneous. */ | |
3743 | ||
245d2e3f RS |
3744 | /* Parse a symbolic operand such as "pow2" at *STR. ARRAY is an array |
3745 | of SIZE tokens in which index I gives the token for field value I, | |
3746 | or is null if field value I is invalid. REG_TYPE says which register | |
3747 | names should be treated as registers rather than as symbolic immediates. | |
3748 | ||
3749 | Return true on success, moving *STR past the operand and storing the | |
3750 | field value in *VAL. */ | |
3751 | ||
3752 | static int | |
3753 | parse_enum_string (char **str, int64_t *val, const char *const *array, | |
3754 | size_t size, aarch64_reg_type reg_type) | |
3755 | { | |
3756 | expressionS exp; | |
3757 | char *p, *q; | |
3758 | size_t i; | |
3759 | ||
3760 | /* Match C-like tokens. */ | |
3761 | p = q = *str; | |
3762 | while (ISALNUM (*q)) | |
3763 | q++; | |
3764 | ||
3765 | for (i = 0; i < size; ++i) | |
3766 | if (array[i] | |
3767 | && strncasecmp (array[i], p, q - p) == 0 | |
3768 | && array[i][q - p] == 0) | |
3769 | { | |
3770 | *val = i; | |
3771 | *str = q; | |
3772 | return TRUE; | |
3773 | } | |
3774 | ||
3775 | if (!parse_immediate_expression (&p, &exp, reg_type)) | |
3776 | return FALSE; | |
3777 | ||
3778 | if (exp.X_op == O_constant | |
3779 | && (uint64_t) exp.X_add_number < size) | |
3780 | { | |
3781 | *val = exp.X_add_number; | |
3782 | *str = p; | |
3783 | return TRUE; | |
3784 | } | |
3785 | ||
3786 | /* Use the default error for this operand. */ | |
3787 | return FALSE; | |
3788 | } | |
3789 | ||
a06ea964 NC |
3790 | /* Parse an option for a preload instruction. Returns the encoding for the |
3791 | option, or PARSE_FAIL. */ | |
3792 | ||
3793 | static int | |
3794 | parse_pldop (char **str) | |
3795 | { | |
3796 | char *p, *q; | |
3797 | const struct aarch64_name_value_pair *o; | |
3798 | ||
3799 | p = q = *str; | |
3800 | while (ISALNUM (*q)) | |
3801 | q++; | |
3802 | ||
3803 | o = hash_find_n (aarch64_pldop_hsh, p, q - p); | |
3804 | if (!o) | |
3805 | return PARSE_FAIL; | |
3806 | ||
3807 | *str = q; | |
3808 | return o->value; | |
3809 | } | |
3810 | ||
3811 | /* Parse an option for a barrier instruction. Returns the encoding for the | |
3812 | option, or PARSE_FAIL. */ | |
3813 | ||
3814 | static int | |
3815 | parse_barrier (char **str) | |
3816 | { | |
3817 | char *p, *q; | |
3818 | const asm_barrier_opt *o; | |
3819 | ||
3820 | p = q = *str; | |
3821 | while (ISALPHA (*q)) | |
3822 | q++; | |
3823 | ||
3824 | o = hash_find_n (aarch64_barrier_opt_hsh, p, q - p); | |
3825 | if (!o) | |
3826 | return PARSE_FAIL; | |
3827 | ||
3828 | *str = q; | |
3829 | return o->value; | |
3830 | } | |
3831 | ||
1e6f4800 MW |
3832 | /* Parse an operand for a PSB barrier. Set *HINT_OPT to the hint-option record |
3833 | return 0 if successful. Otherwise return PARSE_FAIL. */ | |
3834 | ||
3835 | static int | |
3836 | parse_barrier_psb (char **str, | |
3837 | const struct aarch64_name_value_pair ** hint_opt) | |
3838 | { | |
3839 | char *p, *q; | |
3840 | const struct aarch64_name_value_pair *o; | |
3841 | ||
3842 | p = q = *str; | |
3843 | while (ISALPHA (*q)) | |
3844 | q++; | |
3845 | ||
3846 | o = hash_find_n (aarch64_hint_opt_hsh, p, q - p); | |
3847 | if (!o) | |
3848 | { | |
3849 | set_fatal_syntax_error | |
3850 | ( _("unknown or missing option to PSB")); | |
3851 | return PARSE_FAIL; | |
3852 | } | |
3853 | ||
3854 | if (o->value != 0x11) | |
3855 | { | |
3856 | /* PSB only accepts option name 'CSYNC'. */ | |
3857 | set_syntax_error | |
3858 | (_("the specified option is not accepted for PSB")); | |
3859 | return PARSE_FAIL; | |
3860 | } | |
3861 | ||
3862 | *str = q; | |
3863 | *hint_opt = o; | |
3864 | return 0; | |
3865 | } | |
3866 | ||
a06ea964 | 3867 | /* Parse a system register or a PSTATE field name for an MSR/MRS instruction. |
a203d9b7 | 3868 | Returns the encoding for the option, or PARSE_FAIL. |
a06ea964 NC |
3869 | |
3870 | If IMPLE_DEFINED_P is non-zero, the function will also try to parse the | |
72ca8fad MW |
3871 | implementation defined system register name S<op0>_<op1>_<Cn>_<Cm>_<op2>. |
3872 | ||
3873 | If PSTATEFIELD_P is non-zero, the function will parse the name as a PSTATE | |
3874 | field, otherwise as a system register. | |
3875 | */ | |
a06ea964 NC |
3876 | |
3877 | static int | |
72ca8fad MW |
3878 | parse_sys_reg (char **str, struct hash_control *sys_regs, |
3879 | int imple_defined_p, int pstatefield_p) | |
a06ea964 NC |
3880 | { |
3881 | char *p, *q; | |
3882 | char buf[32]; | |
49eec193 | 3883 | const aarch64_sys_reg *o; |
a06ea964 NC |
3884 | int value; |
3885 | ||
3886 | p = buf; | |
3887 | for (q = *str; ISALNUM (*q) || *q == '_'; q++) | |
3888 | if (p < buf + 31) | |
3889 | *p++ = TOLOWER (*q); | |
3890 | *p = '\0'; | |
3891 | /* Assert that BUF be large enough. */ | |
3892 | gas_assert (p - buf == q - *str); | |
3893 | ||
3894 | o = hash_find (sys_regs, buf); | |
3895 | if (!o) | |
3896 | { | |
3897 | if (!imple_defined_p) | |
3898 | return PARSE_FAIL; | |
3899 | else | |
3900 | { | |
df7b4545 | 3901 | /* Parse S<op0>_<op1>_<Cn>_<Cm>_<op2>. */ |
a06ea964 | 3902 | unsigned int op0, op1, cn, cm, op2; |
df7b4545 JW |
3903 | |
3904 | if (sscanf (buf, "s%u_%u_c%u_c%u_%u", &op0, &op1, &cn, &cm, &op2) | |
3905 | != 5) | |
a06ea964 | 3906 | return PARSE_FAIL; |
df7b4545 | 3907 | if (op0 > 3 || op1 > 7 || cn > 15 || cm > 15 || op2 > 7) |
a06ea964 NC |
3908 | return PARSE_FAIL; |
3909 | value = (op0 << 14) | (op1 << 11) | (cn << 7) | (cm << 3) | op2; | |
3910 | } | |
3911 | } | |
3912 | else | |
49eec193 | 3913 | { |
72ca8fad MW |
3914 | if (pstatefield_p && !aarch64_pstatefield_supported_p (cpu_variant, o)) |
3915 | as_bad (_("selected processor does not support PSTATE field " | |
3916 | "name '%s'"), buf); | |
3917 | if (!pstatefield_p && !aarch64_sys_reg_supported_p (cpu_variant, o)) | |
3918 | as_bad (_("selected processor does not support system register " | |
3919 | "name '%s'"), buf); | |
9a73e520 | 3920 | if (aarch64_sys_reg_deprecated_p (o)) |
49eec193 | 3921 | as_warn (_("system register name '%s' is deprecated and may be " |
72ca8fad | 3922 | "removed in a future release"), buf); |
49eec193 YZ |
3923 | value = o->value; |
3924 | } | |
a06ea964 NC |
3925 | |
3926 | *str = q; | |
3927 | return value; | |
3928 | } | |
3929 | ||
3930 | /* Parse a system reg for ic/dc/at/tlbi instructions. Returns the table entry | |
3931 | for the option, or NULL. */ | |
3932 | ||
3933 | static const aarch64_sys_ins_reg * | |
3934 | parse_sys_ins_reg (char **str, struct hash_control *sys_ins_regs) | |
3935 | { | |
3936 | char *p, *q; | |
3937 | char buf[32]; | |
3938 | const aarch64_sys_ins_reg *o; | |
3939 | ||
3940 | p = buf; | |
3941 | for (q = *str; ISALNUM (*q) || *q == '_'; q++) | |
3942 | if (p < buf + 31) | |
3943 | *p++ = TOLOWER (*q); | |
3944 | *p = '\0'; | |
3945 | ||
3946 | o = hash_find (sys_ins_regs, buf); | |
3947 | if (!o) | |
3948 | return NULL; | |
3949 | ||
d6bf7ce6 MW |
3950 | if (!aarch64_sys_ins_reg_supported_p (cpu_variant, o)) |
3951 | as_bad (_("selected processor does not support system register " | |
3952 | "name '%s'"), buf); | |
3953 | ||
a06ea964 NC |
3954 | *str = q; |
3955 | return o; | |
3956 | } | |
3957 | \f | |
3958 | #define po_char_or_fail(chr) do { \ | |
3959 | if (! skip_past_char (&str, chr)) \ | |
3960 | goto failure; \ | |
3961 | } while (0) | |
3962 | ||
3963 | #define po_reg_or_fail(regtype) do { \ | |
3964 | val = aarch64_reg_parse (&str, regtype, &rtype, NULL); \ | |
3965 | if (val == PARSE_FAIL) \ | |
3966 | { \ | |
3967 | set_default_error (); \ | |
3968 | goto failure; \ | |
3969 | } \ | |
3970 | } while (0) | |
3971 | ||
e1b988bb RS |
3972 | #define po_int_reg_or_fail(reg_type) do { \ |
3973 | reg = aarch64_reg_parse_32_64 (&str, &qualifier); \ | |
3974 | if (!reg || !aarch64_check_reg_type (reg, reg_type)) \ | |
a06ea964 NC |
3975 | { \ |
3976 | set_default_error (); \ | |
3977 | goto failure; \ | |
3978 | } \ | |
e1b988bb RS |
3979 | info->reg.regno = reg->number; \ |
3980 | info->qualifier = qualifier; \ | |
a06ea964 NC |
3981 | } while (0) |
3982 | ||
3983 | #define po_imm_nc_or_fail() do { \ | |
1799c0d0 | 3984 | if (! parse_constant_immediate (&str, &val, imm_reg_type)) \ |
a06ea964 NC |
3985 | goto failure; \ |
3986 | } while (0) | |
3987 | ||
3988 | #define po_imm_or_fail(min, max) do { \ | |
1799c0d0 | 3989 | if (! parse_constant_immediate (&str, &val, imm_reg_type)) \ |
a06ea964 NC |
3990 | goto failure; \ |
3991 | if (val < min || val > max) \ | |
3992 | { \ | |
3993 | set_fatal_syntax_error (_("immediate value out of range "\ | |
3994 | #min " to "#max)); \ | |
3995 | goto failure; \ | |
3996 | } \ | |
3997 | } while (0) | |
3998 | ||
245d2e3f RS |
3999 | #define po_enum_or_fail(array) do { \ |
4000 | if (!parse_enum_string (&str, &val, array, \ | |
4001 | ARRAY_SIZE (array), imm_reg_type)) \ | |
4002 | goto failure; \ | |
4003 | } while (0) | |
4004 | ||
a06ea964 NC |
4005 | #define po_misc_or_fail(expr) do { \ |
4006 | if (!expr) \ | |
4007 | goto failure; \ | |
4008 | } while (0) | |
4009 | \f | |
4010 | /* encode the 12-bit imm field of Add/sub immediate */ | |
4011 | static inline uint32_t | |
4012 | encode_addsub_imm (uint32_t imm) | |
4013 | { | |
4014 | return imm << 10; | |
4015 | } | |
4016 | ||
4017 | /* encode the shift amount field of Add/sub immediate */ | |
4018 | static inline uint32_t | |
4019 | encode_addsub_imm_shift_amount (uint32_t cnt) | |
4020 | { | |
4021 | return cnt << 22; | |
4022 | } | |
4023 | ||
4024 | ||
4025 | /* encode the imm field of Adr instruction */ | |
4026 | static inline uint32_t | |
4027 | encode_adr_imm (uint32_t imm) | |
4028 | { | |
4029 | return (((imm & 0x3) << 29) /* [1:0] -> [30:29] */ | |
4030 | | ((imm & (0x7ffff << 2)) << 3)); /* [20:2] -> [23:5] */ | |
4031 | } | |
4032 | ||
4033 | /* encode the immediate field of Move wide immediate */ | |
4034 | static inline uint32_t | |
4035 | encode_movw_imm (uint32_t imm) | |
4036 | { | |
4037 | return imm << 5; | |
4038 | } | |
4039 | ||
4040 | /* encode the 26-bit offset of unconditional branch */ | |
4041 | static inline uint32_t | |
4042 | encode_branch_ofs_26 (uint32_t ofs) | |
4043 | { | |
4044 | return ofs & ((1 << 26) - 1); | |
4045 | } | |
4046 | ||
4047 | /* encode the 19-bit offset of conditional branch and compare & branch */ | |
4048 | static inline uint32_t | |
4049 | encode_cond_branch_ofs_19 (uint32_t ofs) | |
4050 | { | |
4051 | return (ofs & ((1 << 19) - 1)) << 5; | |
4052 | } | |
4053 | ||
4054 | /* encode the 19-bit offset of ld literal */ | |
4055 | static inline uint32_t | |
4056 | encode_ld_lit_ofs_19 (uint32_t ofs) | |
4057 | { | |
4058 | return (ofs & ((1 << 19) - 1)) << 5; | |
4059 | } | |
4060 | ||
4061 | /* Encode the 14-bit offset of test & branch. */ | |
4062 | static inline uint32_t | |
4063 | encode_tst_branch_ofs_14 (uint32_t ofs) | |
4064 | { | |
4065 | return (ofs & ((1 << 14) - 1)) << 5; | |
4066 | } | |
4067 | ||
4068 | /* Encode the 16-bit imm field of svc/hvc/smc. */ | |
4069 | static inline uint32_t | |
4070 | encode_svc_imm (uint32_t imm) | |
4071 | { | |
4072 | return imm << 5; | |
4073 | } | |
4074 | ||
4075 | /* Reencode add(s) to sub(s), or sub(s) to add(s). */ | |
4076 | static inline uint32_t | |
4077 | reencode_addsub_switch_add_sub (uint32_t opcode) | |
4078 | { | |
4079 | return opcode ^ (1 << 30); | |
4080 | } | |
4081 | ||
4082 | static inline uint32_t | |
4083 | reencode_movzn_to_movz (uint32_t opcode) | |
4084 | { | |
4085 | return opcode | (1 << 30); | |
4086 | } | |
4087 | ||
4088 | static inline uint32_t | |
4089 | reencode_movzn_to_movn (uint32_t opcode) | |
4090 | { | |
4091 | return opcode & ~(1 << 30); | |
4092 | } | |
4093 | ||
4094 | /* Overall per-instruction processing. */ | |
4095 | ||
4096 | /* We need to be able to fix up arbitrary expressions in some statements. | |
4097 | This is so that we can handle symbols that are an arbitrary distance from | |
4098 | the pc. The most common cases are of the form ((+/-sym -/+ . - 8) & mask), | |
4099 | which returns part of an address in a form which will be valid for | |
4100 | a data instruction. We do this by pushing the expression into a symbol | |
4101 | in the expr_section, and creating a fix for that. */ | |
4102 | ||
4103 | static fixS * | |
4104 | fix_new_aarch64 (fragS * frag, | |
4105 | int where, | |
4106 | short int size, expressionS * exp, int pc_rel, int reloc) | |
4107 | { | |
4108 | fixS *new_fix; | |
4109 | ||
4110 | switch (exp->X_op) | |
4111 | { | |
4112 | case O_constant: | |
4113 | case O_symbol: | |
4114 | case O_add: | |
4115 | case O_subtract: | |
4116 | new_fix = fix_new_exp (frag, where, size, exp, pc_rel, reloc); | |
4117 | break; | |
4118 | ||
4119 | default: | |
4120 | new_fix = fix_new (frag, where, size, make_expr_symbol (exp), 0, | |
4121 | pc_rel, reloc); | |
4122 | break; | |
4123 | } | |
4124 | return new_fix; | |
4125 | } | |
4126 | \f | |
4127 | /* Diagnostics on operands errors. */ | |
4128 | ||
a52e6fd3 YZ |
4129 | /* By default, output verbose error message. |
4130 | Disable the verbose error message by -mno-verbose-error. */ | |
4131 | static int verbose_error_p = 1; | |
a06ea964 NC |
4132 | |
4133 | #ifdef DEBUG_AARCH64 | |
4134 | /* N.B. this is only for the purpose of debugging. */ | |
4135 | const char* operand_mismatch_kind_names[] = | |
4136 | { | |
4137 | "AARCH64_OPDE_NIL", | |
4138 | "AARCH64_OPDE_RECOVERABLE", | |
4139 | "AARCH64_OPDE_SYNTAX_ERROR", | |
4140 | "AARCH64_OPDE_FATAL_SYNTAX_ERROR", | |
4141 | "AARCH64_OPDE_INVALID_VARIANT", | |
4142 | "AARCH64_OPDE_OUT_OF_RANGE", | |
4143 | "AARCH64_OPDE_UNALIGNED", | |
4144 | "AARCH64_OPDE_REG_LIST", | |
4145 | "AARCH64_OPDE_OTHER_ERROR", | |
4146 | }; | |
4147 | #endif /* DEBUG_AARCH64 */ | |
4148 | ||
4149 | /* Return TRUE if LHS is of higher severity than RHS, otherwise return FALSE. | |
4150 | ||
4151 | When multiple errors of different kinds are found in the same assembly | |
4152 | line, only the error of the highest severity will be picked up for | |
4153 | issuing the diagnostics. */ | |
4154 | ||
4155 | static inline bfd_boolean | |
4156 | operand_error_higher_severity_p (enum aarch64_operand_error_kind lhs, | |
4157 | enum aarch64_operand_error_kind rhs) | |
4158 | { | |
4159 | gas_assert (AARCH64_OPDE_RECOVERABLE > AARCH64_OPDE_NIL); | |
4160 | gas_assert (AARCH64_OPDE_SYNTAX_ERROR > AARCH64_OPDE_RECOVERABLE); | |
4161 | gas_assert (AARCH64_OPDE_FATAL_SYNTAX_ERROR > AARCH64_OPDE_SYNTAX_ERROR); | |
4162 | gas_assert (AARCH64_OPDE_INVALID_VARIANT > AARCH64_OPDE_FATAL_SYNTAX_ERROR); | |
4163 | gas_assert (AARCH64_OPDE_OUT_OF_RANGE > AARCH64_OPDE_INVALID_VARIANT); | |
4164 | gas_assert (AARCH64_OPDE_UNALIGNED > AARCH64_OPDE_OUT_OF_RANGE); | |
4165 | gas_assert (AARCH64_OPDE_REG_LIST > AARCH64_OPDE_UNALIGNED); | |
4166 | gas_assert (AARCH64_OPDE_OTHER_ERROR > AARCH64_OPDE_REG_LIST); | |
4167 | return lhs > rhs; | |
4168 | } | |
4169 | ||
4170 | /* Helper routine to get the mnemonic name from the assembly instruction | |
4171 | line; should only be called for the diagnosis purpose, as there is | |
4172 | string copy operation involved, which may affect the runtime | |
4173 | performance if used in elsewhere. */ | |
4174 | ||
4175 | static const char* | |
4176 | get_mnemonic_name (const char *str) | |
4177 | { | |
4178 | static char mnemonic[32]; | |
4179 | char *ptr; | |
4180 | ||
4181 | /* Get the first 15 bytes and assume that the full name is included. */ | |
4182 | strncpy (mnemonic, str, 31); | |
4183 | mnemonic[31] = '\0'; | |
4184 | ||
4185 | /* Scan up to the end of the mnemonic, which must end in white space, | |
4186 | '.', or end of string. */ | |
4187 | for (ptr = mnemonic; is_part_of_name(*ptr); ++ptr) | |
4188 | ; | |
4189 | ||
4190 | *ptr = '\0'; | |
4191 | ||
4192 | /* Append '...' to the truncated long name. */ | |
4193 | if (ptr - mnemonic == 31) | |
4194 | mnemonic[28] = mnemonic[29] = mnemonic[30] = '.'; | |
4195 | ||
4196 | return mnemonic; | |
4197 | } | |
4198 | ||
4199 | static void | |
4200 | reset_aarch64_instruction (aarch64_instruction *instruction) | |
4201 | { | |
4202 | memset (instruction, '\0', sizeof (aarch64_instruction)); | |
4203 | instruction->reloc.type = BFD_RELOC_UNUSED; | |
4204 | } | |
4205 | ||
33eaf5de | 4206 | /* Data structures storing one user error in the assembly code related to |
a06ea964 NC |
4207 | operands. */ |
4208 | ||
4209 | struct operand_error_record | |
4210 | { | |
4211 | const aarch64_opcode *opcode; | |
4212 | aarch64_operand_error detail; | |
4213 | struct operand_error_record *next; | |
4214 | }; | |
4215 | ||
4216 | typedef struct operand_error_record operand_error_record; | |
4217 | ||
4218 | struct operand_errors | |
4219 | { | |
4220 | operand_error_record *head; | |
4221 | operand_error_record *tail; | |
4222 | }; | |
4223 | ||
4224 | typedef struct operand_errors operand_errors; | |
4225 | ||
4226 | /* Top-level data structure reporting user errors for the current line of | |
4227 | the assembly code. | |
4228 | The way md_assemble works is that all opcodes sharing the same mnemonic | |
4229 | name are iterated to find a match to the assembly line. In this data | |
4230 | structure, each of the such opcodes will have one operand_error_record | |
4231 | allocated and inserted. In other words, excessive errors related with | |
4232 | a single opcode are disregarded. */ | |
4233 | operand_errors operand_error_report; | |
4234 | ||
4235 | /* Free record nodes. */ | |
4236 | static operand_error_record *free_opnd_error_record_nodes = NULL; | |
4237 | ||
4238 | /* Initialize the data structure that stores the operand mismatch | |
4239 | information on assembling one line of the assembly code. */ | |
4240 | static void | |
4241 | init_operand_error_report (void) | |
4242 | { | |
4243 | if (operand_error_report.head != NULL) | |
4244 | { | |
4245 | gas_assert (operand_error_report.tail != NULL); | |
4246 | operand_error_report.tail->next = free_opnd_error_record_nodes; | |
4247 | free_opnd_error_record_nodes = operand_error_report.head; | |
4248 | operand_error_report.head = NULL; | |
4249 | operand_error_report.tail = NULL; | |
4250 | return; | |
4251 | } | |
4252 | gas_assert (operand_error_report.tail == NULL); | |
4253 | } | |
4254 | ||
4255 | /* Return TRUE if some operand error has been recorded during the | |
4256 | parsing of the current assembly line using the opcode *OPCODE; | |
4257 | otherwise return FALSE. */ | |
4258 | static inline bfd_boolean | |
4259 | opcode_has_operand_error_p (const aarch64_opcode *opcode) | |
4260 | { | |
4261 | operand_error_record *record = operand_error_report.head; | |
4262 | return record && record->opcode == opcode; | |
4263 | } | |
4264 | ||
4265 | /* Add the error record *NEW_RECORD to operand_error_report. The record's | |
4266 | OPCODE field is initialized with OPCODE. | |
4267 | N.B. only one record for each opcode, i.e. the maximum of one error is | |
4268 | recorded for each instruction template. */ | |
4269 | ||
4270 | static void | |
4271 | add_operand_error_record (const operand_error_record* new_record) | |
4272 | { | |
4273 | const aarch64_opcode *opcode = new_record->opcode; | |
4274 | operand_error_record* record = operand_error_report.head; | |
4275 | ||
4276 | /* The record may have been created for this opcode. If not, we need | |
4277 | to prepare one. */ | |
4278 | if (! opcode_has_operand_error_p (opcode)) | |
4279 | { | |
4280 | /* Get one empty record. */ | |
4281 | if (free_opnd_error_record_nodes == NULL) | |
4282 | { | |
325801bd | 4283 | record = XNEW (operand_error_record); |
a06ea964 NC |
4284 | } |
4285 | else | |
4286 | { | |
4287 | record = free_opnd_error_record_nodes; | |
4288 | free_opnd_error_record_nodes = record->next; | |
4289 | } | |
4290 | record->opcode = opcode; | |
4291 | /* Insert at the head. */ | |
4292 | record->next = operand_error_report.head; | |
4293 | operand_error_report.head = record; | |
4294 | if (operand_error_report.tail == NULL) | |
4295 | operand_error_report.tail = record; | |
4296 | } | |
4297 | else if (record->detail.kind != AARCH64_OPDE_NIL | |
4298 | && record->detail.index <= new_record->detail.index | |
4299 | && operand_error_higher_severity_p (record->detail.kind, | |
4300 | new_record->detail.kind)) | |
4301 | { | |
4302 | /* In the case of multiple errors found on operands related with a | |
4303 | single opcode, only record the error of the leftmost operand and | |
4304 | only if the error is of higher severity. */ | |
4305 | DEBUG_TRACE ("error %s on operand %d not added to the report due to" | |
4306 | " the existing error %s on operand %d", | |
4307 | operand_mismatch_kind_names[new_record->detail.kind], | |
4308 | new_record->detail.index, | |
4309 | operand_mismatch_kind_names[record->detail.kind], | |
4310 | record->detail.index); | |
4311 | return; | |
4312 | } | |
4313 | ||
4314 | record->detail = new_record->detail; | |
4315 | } | |
4316 | ||
4317 | static inline void | |
4318 | record_operand_error_info (const aarch64_opcode *opcode, | |
4319 | aarch64_operand_error *error_info) | |
4320 | { | |
4321 | operand_error_record record; | |
4322 | record.opcode = opcode; | |
4323 | record.detail = *error_info; | |
4324 | add_operand_error_record (&record); | |
4325 | } | |
4326 | ||
4327 | /* Record an error of kind KIND and, if ERROR is not NULL, of the detailed | |
4328 | error message *ERROR, for operand IDX (count from 0). */ | |
4329 | ||
4330 | static void | |
4331 | record_operand_error (const aarch64_opcode *opcode, int idx, | |
4332 | enum aarch64_operand_error_kind kind, | |
4333 | const char* error) | |
4334 | { | |
4335 | aarch64_operand_error info; | |
4336 | memset(&info, 0, sizeof (info)); | |
4337 | info.index = idx; | |
4338 | info.kind = kind; | |
4339 | info.error = error; | |
4340 | record_operand_error_info (opcode, &info); | |
4341 | } | |
4342 | ||
4343 | static void | |
4344 | record_operand_error_with_data (const aarch64_opcode *opcode, int idx, | |
4345 | enum aarch64_operand_error_kind kind, | |
4346 | const char* error, const int *extra_data) | |
4347 | { | |
4348 | aarch64_operand_error info; | |
4349 | info.index = idx; | |
4350 | info.kind = kind; | |
4351 | info.error = error; | |
4352 | info.data[0] = extra_data[0]; | |
4353 | info.data[1] = extra_data[1]; | |
4354 | info.data[2] = extra_data[2]; | |
4355 | record_operand_error_info (opcode, &info); | |
4356 | } | |
4357 | ||
4358 | static void | |
4359 | record_operand_out_of_range_error (const aarch64_opcode *opcode, int idx, | |
4360 | const char* error, int lower_bound, | |
4361 | int upper_bound) | |
4362 | { | |
4363 | int data[3] = {lower_bound, upper_bound, 0}; | |
4364 | record_operand_error_with_data (opcode, idx, AARCH64_OPDE_OUT_OF_RANGE, | |
4365 | error, data); | |
4366 | } | |
4367 | ||
4368 | /* Remove the operand error record for *OPCODE. */ | |
4369 | static void ATTRIBUTE_UNUSED | |
4370 | remove_operand_error_record (const aarch64_opcode *opcode) | |
4371 | { | |
4372 | if (opcode_has_operand_error_p (opcode)) | |
4373 | { | |
4374 | operand_error_record* record = operand_error_report.head; | |
4375 | gas_assert (record != NULL && operand_error_report.tail != NULL); | |
4376 | operand_error_report.head = record->next; | |
4377 | record->next = free_opnd_error_record_nodes; | |
4378 | free_opnd_error_record_nodes = record; | |
4379 | if (operand_error_report.head == NULL) | |
4380 | { | |
4381 | gas_assert (operand_error_report.tail == record); | |
4382 | operand_error_report.tail = NULL; | |
4383 | } | |
4384 | } | |
4385 | } | |
4386 | ||
4387 | /* Given the instruction in *INSTR, return the index of the best matched | |
4388 | qualifier sequence in the list (an array) headed by QUALIFIERS_LIST. | |
4389 | ||
4390 | Return -1 if there is no qualifier sequence; return the first match | |
4391 | if there is multiple matches found. */ | |
4392 | ||
4393 | static int | |
4394 | find_best_match (const aarch64_inst *instr, | |
4395 | const aarch64_opnd_qualifier_seq_t *qualifiers_list) | |
4396 | { | |
4397 | int i, num_opnds, max_num_matched, idx; | |
4398 | ||
4399 | num_opnds = aarch64_num_of_operands (instr->opcode); | |
4400 | if (num_opnds == 0) | |
4401 | { | |
4402 | DEBUG_TRACE ("no operand"); | |
4403 | return -1; | |
4404 | } | |
4405 | ||
4406 | max_num_matched = 0; | |
4989adac | 4407 | idx = 0; |
a06ea964 NC |
4408 | |
4409 | /* For each pattern. */ | |
4410 | for (i = 0; i < AARCH64_MAX_QLF_SEQ_NUM; ++i, ++qualifiers_list) | |
4411 | { | |
4412 | int j, num_matched; | |
4413 | const aarch64_opnd_qualifier_t *qualifiers = *qualifiers_list; | |
4414 | ||
4415 | /* Most opcodes has much fewer patterns in the list. */ | |
4416 | if (empty_qualifier_sequence_p (qualifiers) == TRUE) | |
4417 | { | |
4418 | DEBUG_TRACE_IF (i == 0, "empty list of qualifier sequence"); | |
a06ea964 NC |
4419 | break; |
4420 | } | |
4421 | ||
4422 | for (j = 0, num_matched = 0; j < num_opnds; ++j, ++qualifiers) | |
4423 | if (*qualifiers == instr->operands[j].qualifier) | |
4424 | ++num_matched; | |
4425 | ||
4426 | if (num_matched > max_num_matched) | |
4427 | { | |
4428 | max_num_matched = num_matched; | |
4429 | idx = i; | |
4430 | } | |
4431 | } | |
4432 | ||
4433 | DEBUG_TRACE ("return with %d", idx); | |
4434 | return idx; | |
4435 | } | |
4436 | ||
33eaf5de | 4437 | /* Assign qualifiers in the qualifier sequence (headed by QUALIFIERS) to the |
a06ea964 NC |
4438 | corresponding operands in *INSTR. */ |
4439 | ||
4440 | static inline void | |
4441 | assign_qualifier_sequence (aarch64_inst *instr, | |
4442 | const aarch64_opnd_qualifier_t *qualifiers) | |
4443 | { | |
4444 | int i = 0; | |
4445 | int num_opnds = aarch64_num_of_operands (instr->opcode); | |
4446 | gas_assert (num_opnds); | |
4447 | for (i = 0; i < num_opnds; ++i, ++qualifiers) | |
4448 | instr->operands[i].qualifier = *qualifiers; | |
4449 | } | |
4450 | ||
4451 | /* Print operands for the diagnosis purpose. */ | |
4452 | ||
4453 | static void | |
4454 | print_operands (char *buf, const aarch64_opcode *opcode, | |
4455 | const aarch64_opnd_info *opnds) | |
4456 | { | |
4457 | int i; | |
4458 | ||
4459 | for (i = 0; i < AARCH64_MAX_OPND_NUM; ++i) | |
4460 | { | |
08d3b0cc | 4461 | char str[128]; |
a06ea964 NC |
4462 | |
4463 | /* We regard the opcode operand info more, however we also look into | |
4464 | the inst->operands to support the disassembling of the optional | |
4465 | operand. | |
4466 | The two operand code should be the same in all cases, apart from | |
4467 | when the operand can be optional. */ | |
4468 | if (opcode->operands[i] == AARCH64_OPND_NIL | |
4469 | || opnds[i].type == AARCH64_OPND_NIL) | |
4470 | break; | |
4471 | ||
4472 | /* Generate the operand string in STR. */ | |
08d3b0cc | 4473 | aarch64_print_operand (str, sizeof (str), 0, opcode, opnds, i, NULL, NULL); |
a06ea964 NC |
4474 | |
4475 | /* Delimiter. */ | |
4476 | if (str[0] != '\0') | |
ad43e107 | 4477 | strcat (buf, i == 0 ? " " : ", "); |
a06ea964 NC |
4478 | |
4479 | /* Append the operand string. */ | |
4480 | strcat (buf, str); | |
4481 | } | |
4482 | } | |
4483 | ||
4484 | /* Send to stderr a string as information. */ | |
4485 | ||
4486 | static void | |
4487 | output_info (const char *format, ...) | |
4488 | { | |
3b4dbbbf | 4489 | const char *file; |
a06ea964 NC |
4490 | unsigned int line; |
4491 | va_list args; | |
4492 | ||
3b4dbbbf | 4493 | file = as_where (&line); |
a06ea964 NC |
4494 | if (file) |
4495 | { | |
4496 | if (line != 0) | |
4497 | fprintf (stderr, "%s:%u: ", file, line); | |
4498 | else | |
4499 | fprintf (stderr, "%s: ", file); | |
4500 | } | |
4501 | fprintf (stderr, _("Info: ")); | |
4502 | va_start (args, format); | |
4503 | vfprintf (stderr, format, args); | |
4504 | va_end (args); | |
4505 | (void) putc ('\n', stderr); | |
4506 | } | |
4507 | ||
4508 | /* Output one operand error record. */ | |
4509 | ||
4510 | static void | |
4511 | output_operand_error_record (const operand_error_record *record, char *str) | |
4512 | { | |
28f013d5 JB |
4513 | const aarch64_operand_error *detail = &record->detail; |
4514 | int idx = detail->index; | |
a06ea964 | 4515 | const aarch64_opcode *opcode = record->opcode; |
28f013d5 | 4516 | enum aarch64_opnd opd_code = (idx >= 0 ? opcode->operands[idx] |
a06ea964 | 4517 | : AARCH64_OPND_NIL); |
a06ea964 NC |
4518 | |
4519 | switch (detail->kind) | |
4520 | { | |
4521 | case AARCH64_OPDE_NIL: | |
4522 | gas_assert (0); | |
4523 | break; | |
4524 | ||
4525 | case AARCH64_OPDE_SYNTAX_ERROR: | |
4526 | case AARCH64_OPDE_RECOVERABLE: | |
4527 | case AARCH64_OPDE_FATAL_SYNTAX_ERROR: | |
4528 | case AARCH64_OPDE_OTHER_ERROR: | |
a06ea964 NC |
4529 | /* Use the prepared error message if there is, otherwise use the |
4530 | operand description string to describe the error. */ | |
4531 | if (detail->error != NULL) | |
4532 | { | |
28f013d5 | 4533 | if (idx < 0) |
a06ea964 NC |
4534 | as_bad (_("%s -- `%s'"), detail->error, str); |
4535 | else | |
4536 | as_bad (_("%s at operand %d -- `%s'"), | |
28f013d5 | 4537 | detail->error, idx + 1, str); |
a06ea964 NC |
4538 | } |
4539 | else | |
28f013d5 JB |
4540 | { |
4541 | gas_assert (idx >= 0); | |
ab3b8fcf | 4542 | as_bad (_("operand %d must be %s -- `%s'"), idx + 1, |
a06ea964 | 4543 | aarch64_get_operand_desc (opd_code), str); |
28f013d5 | 4544 | } |
a06ea964 NC |
4545 | break; |
4546 | ||
4547 | case AARCH64_OPDE_INVALID_VARIANT: | |
4548 | as_bad (_("operand mismatch -- `%s'"), str); | |
4549 | if (verbose_error_p) | |
4550 | { | |
4551 | /* We will try to correct the erroneous instruction and also provide | |
4552 | more information e.g. all other valid variants. | |
4553 | ||
4554 | The string representation of the corrected instruction and other | |
4555 | valid variants are generated by | |
4556 | ||
4557 | 1) obtaining the intermediate representation of the erroneous | |
4558 | instruction; | |
4559 | 2) manipulating the IR, e.g. replacing the operand qualifier; | |
4560 | 3) printing out the instruction by calling the printer functions | |
4561 | shared with the disassembler. | |
4562 | ||
4563 | The limitation of this method is that the exact input assembly | |
4564 | line cannot be accurately reproduced in some cases, for example an | |
4565 | optional operand present in the actual assembly line will be | |
4566 | omitted in the output; likewise for the optional syntax rules, | |
4567 | e.g. the # before the immediate. Another limitation is that the | |
4568 | assembly symbols and relocation operations in the assembly line | |
4569 | currently cannot be printed out in the error report. Last but not | |
4570 | least, when there is other error(s) co-exist with this error, the | |
4571 | 'corrected' instruction may be still incorrect, e.g. given | |
4572 | 'ldnp h0,h1,[x0,#6]!' | |
4573 | this diagnosis will provide the version: | |
4574 | 'ldnp s0,s1,[x0,#6]!' | |
4575 | which is still not right. */ | |
4576 | size_t len = strlen (get_mnemonic_name (str)); | |
4577 | int i, qlf_idx; | |
4578 | bfd_boolean result; | |
08d3b0cc | 4579 | char buf[2048]; |
a06ea964 NC |
4580 | aarch64_inst *inst_base = &inst.base; |
4581 | const aarch64_opnd_qualifier_seq_t *qualifiers_list; | |
4582 | ||
4583 | /* Init inst. */ | |
4584 | reset_aarch64_instruction (&inst); | |
4585 | inst_base->opcode = opcode; | |
4586 | ||
4587 | /* Reset the error report so that there is no side effect on the | |
4588 | following operand parsing. */ | |
4589 | init_operand_error_report (); | |
4590 | ||
4591 | /* Fill inst. */ | |
4592 | result = parse_operands (str + len, opcode) | |
4593 | && programmer_friendly_fixup (&inst); | |
4594 | gas_assert (result); | |
4595 | result = aarch64_opcode_encode (opcode, inst_base, &inst_base->value, | |
4596 | NULL, NULL); | |
4597 | gas_assert (!result); | |
4598 | ||
4599 | /* Find the most matched qualifier sequence. */ | |
4600 | qlf_idx = find_best_match (inst_base, opcode->qualifiers_list); | |
4601 | gas_assert (qlf_idx > -1); | |
4602 | ||
4603 | /* Assign the qualifiers. */ | |
4604 | assign_qualifier_sequence (inst_base, | |
4605 | opcode->qualifiers_list[qlf_idx]); | |
4606 | ||
4607 | /* Print the hint. */ | |
4608 | output_info (_(" did you mean this?")); | |
08d3b0cc | 4609 | snprintf (buf, sizeof (buf), "\t%s", get_mnemonic_name (str)); |
a06ea964 NC |
4610 | print_operands (buf, opcode, inst_base->operands); |
4611 | output_info (_(" %s"), buf); | |
4612 | ||
4613 | /* Print out other variant(s) if there is any. */ | |
4614 | if (qlf_idx != 0 || | |
4615 | !empty_qualifier_sequence_p (opcode->qualifiers_list[1])) | |
4616 | output_info (_(" other valid variant(s):")); | |
4617 | ||
4618 | /* For each pattern. */ | |
4619 | qualifiers_list = opcode->qualifiers_list; | |
4620 | for (i = 0; i < AARCH64_MAX_QLF_SEQ_NUM; ++i, ++qualifiers_list) | |
4621 | { | |
4622 | /* Most opcodes has much fewer patterns in the list. | |
4623 | First NIL qualifier indicates the end in the list. */ | |
4624 | if (empty_qualifier_sequence_p (*qualifiers_list) == TRUE) | |
4625 | break; | |
4626 | ||
4627 | if (i != qlf_idx) | |
4628 | { | |
4629 | /* Mnemonics name. */ | |
08d3b0cc | 4630 | snprintf (buf, sizeof (buf), "\t%s", get_mnemonic_name (str)); |
a06ea964 NC |
4631 | |
4632 | /* Assign the qualifiers. */ | |
4633 | assign_qualifier_sequence (inst_base, *qualifiers_list); | |
4634 | ||
4635 | /* Print instruction. */ | |
4636 | print_operands (buf, opcode, inst_base->operands); | |
4637 | ||
4638 | output_info (_(" %s"), buf); | |
4639 | } | |
4640 | } | |
4641 | } | |
4642 | break; | |
4643 | ||
0c608d6b RS |
4644 | case AARCH64_OPDE_UNTIED_OPERAND: |
4645 | as_bad (_("operand %d must be the same register as operand 1 -- `%s'"), | |
4646 | detail->index + 1, str); | |
4647 | break; | |
4648 | ||
a06ea964 | 4649 | case AARCH64_OPDE_OUT_OF_RANGE: |
f5555712 YZ |
4650 | if (detail->data[0] != detail->data[1]) |
4651 | as_bad (_("%s out of range %d to %d at operand %d -- `%s'"), | |
4652 | detail->error ? detail->error : _("immediate value"), | |
28f013d5 | 4653 | detail->data[0], detail->data[1], idx + 1, str); |
f5555712 | 4654 | else |
ab3b8fcf | 4655 | as_bad (_("%s must be %d at operand %d -- `%s'"), |
f5555712 | 4656 | detail->error ? detail->error : _("immediate value"), |
28f013d5 | 4657 | detail->data[0], idx + 1, str); |
a06ea964 NC |
4658 | break; |
4659 | ||
4660 | case AARCH64_OPDE_REG_LIST: | |
4661 | if (detail->data[0] == 1) | |
4662 | as_bad (_("invalid number of registers in the list; " | |
4663 | "only 1 register is expected at operand %d -- `%s'"), | |
28f013d5 | 4664 | idx + 1, str); |
a06ea964 NC |
4665 | else |
4666 | as_bad (_("invalid number of registers in the list; " | |
4667 | "%d registers are expected at operand %d -- `%s'"), | |
28f013d5 | 4668 | detail->data[0], idx + 1, str); |
a06ea964 NC |
4669 | break; |
4670 | ||
4671 | case AARCH64_OPDE_UNALIGNED: | |
ab3b8fcf | 4672 | as_bad (_("immediate value must be a multiple of " |
a06ea964 | 4673 | "%d at operand %d -- `%s'"), |
28f013d5 | 4674 | detail->data[0], idx + 1, str); |
a06ea964 NC |
4675 | break; |
4676 | ||
4677 | default: | |
4678 | gas_assert (0); | |
4679 | break; | |
4680 | } | |
4681 | } | |
4682 | ||
4683 | /* Process and output the error message about the operand mismatching. | |
4684 | ||
4685 | When this function is called, the operand error information had | |
4686 | been collected for an assembly line and there will be multiple | |
33eaf5de | 4687 | errors in the case of multiple instruction templates; output the |
a06ea964 NC |
4688 | error message that most closely describes the problem. */ |
4689 | ||
4690 | static void | |
4691 | output_operand_error_report (char *str) | |
4692 | { | |
4693 | int largest_error_pos; | |
4694 | const char *msg = NULL; | |
4695 | enum aarch64_operand_error_kind kind; | |
4696 | operand_error_record *curr; | |
4697 | operand_error_record *head = operand_error_report.head; | |
4698 | operand_error_record *record = NULL; | |
4699 | ||
4700 | /* No error to report. */ | |
4701 | if (head == NULL) | |
4702 | return; | |
4703 | ||
4704 | gas_assert (head != NULL && operand_error_report.tail != NULL); | |
4705 | ||
4706 | /* Only one error. */ | |
4707 | if (head == operand_error_report.tail) | |
4708 | { | |
4709 | DEBUG_TRACE ("single opcode entry with error kind: %s", | |
4710 | operand_mismatch_kind_names[head->detail.kind]); | |
4711 | output_operand_error_record (head, str); | |
4712 | return; | |
4713 | } | |
4714 | ||
4715 | /* Find the error kind of the highest severity. */ | |
33eaf5de | 4716 | DEBUG_TRACE ("multiple opcode entries with error kind"); |
a06ea964 NC |
4717 | kind = AARCH64_OPDE_NIL; |
4718 | for (curr = head; curr != NULL; curr = curr->next) | |
4719 | { | |
4720 | gas_assert (curr->detail.kind != AARCH64_OPDE_NIL); | |
4721 | DEBUG_TRACE ("\t%s", operand_mismatch_kind_names[curr->detail.kind]); | |
4722 | if (operand_error_higher_severity_p (curr->detail.kind, kind)) | |
4723 | kind = curr->detail.kind; | |
4724 | } | |
4725 | gas_assert (kind != AARCH64_OPDE_NIL); | |
4726 | ||
4727 | /* Pick up one of errors of KIND to report. */ | |
4728 | largest_error_pos = -2; /* Index can be -1 which means unknown index. */ | |
4729 | for (curr = head; curr != NULL; curr = curr->next) | |
4730 | { | |
4731 | if (curr->detail.kind != kind) | |
4732 | continue; | |
4733 | /* If there are multiple errors, pick up the one with the highest | |
4734 | mismatching operand index. In the case of multiple errors with | |
4735 | the equally highest operand index, pick up the first one or the | |
4736 | first one with non-NULL error message. */ | |
4737 | if (curr->detail.index > largest_error_pos | |
4738 | || (curr->detail.index == largest_error_pos && msg == NULL | |
4739 | && curr->detail.error != NULL)) | |
4740 | { | |
4741 | largest_error_pos = curr->detail.index; | |
4742 | record = curr; | |
4743 | msg = record->detail.error; | |
4744 | } | |
4745 | } | |
4746 | ||
4747 | gas_assert (largest_error_pos != -2 && record != NULL); | |
4748 | DEBUG_TRACE ("Pick up error kind %s to report", | |
4749 | operand_mismatch_kind_names[record->detail.kind]); | |
4750 | ||
4751 | /* Output. */ | |
4752 | output_operand_error_record (record, str); | |
4753 | } | |
4754 | \f | |
4755 | /* Write an AARCH64 instruction to buf - always little-endian. */ | |
4756 | static void | |
4757 | put_aarch64_insn (char *buf, uint32_t insn) | |
4758 | { | |
4759 | unsigned char *where = (unsigned char *) buf; | |
4760 | where[0] = insn; | |
4761 | where[1] = insn >> 8; | |
4762 | where[2] = insn >> 16; | |
4763 | where[3] = insn >> 24; | |
4764 | } | |
4765 | ||
4766 | static uint32_t | |
4767 | get_aarch64_insn (char *buf) | |
4768 | { | |
4769 | unsigned char *where = (unsigned char *) buf; | |
4770 | uint32_t result; | |
4771 | result = (where[0] | (where[1] << 8) | (where[2] << 16) | (where[3] << 24)); | |
4772 | return result; | |
4773 | } | |
4774 | ||
4775 | static void | |
4776 | output_inst (struct aarch64_inst *new_inst) | |
4777 | { | |
4778 | char *to = NULL; | |
4779 | ||
4780 | to = frag_more (INSN_SIZE); | |
4781 | ||
4782 | frag_now->tc_frag_data.recorded = 1; | |
4783 | ||
4784 | put_aarch64_insn (to, inst.base.value); | |
4785 | ||
4786 | if (inst.reloc.type != BFD_RELOC_UNUSED) | |
4787 | { | |
4788 | fixS *fixp = fix_new_aarch64 (frag_now, to - frag_now->fr_literal, | |
4789 | INSN_SIZE, &inst.reloc.exp, | |
4790 | inst.reloc.pc_rel, | |
4791 | inst.reloc.type); | |
4792 | DEBUG_TRACE ("Prepared relocation fix up"); | |
4793 | /* Don't check the addend value against the instruction size, | |
4794 | that's the job of our code in md_apply_fix(). */ | |
4795 | fixp->fx_no_overflow = 1; | |
4796 | if (new_inst != NULL) | |
4797 | fixp->tc_fix_data.inst = new_inst; | |
4798 | if (aarch64_gas_internal_fixup_p ()) | |
4799 | { | |
4800 | gas_assert (inst.reloc.opnd != AARCH64_OPND_NIL); | |
4801 | fixp->tc_fix_data.opnd = inst.reloc.opnd; | |
4802 | fixp->fx_addnumber = inst.reloc.flags; | |
4803 | } | |
4804 | } | |
4805 | ||
4806 | dwarf2_emit_insn (INSN_SIZE); | |
4807 | } | |
4808 | ||
4809 | /* Link together opcodes of the same name. */ | |
4810 | ||
4811 | struct templates | |
4812 | { | |
4813 | aarch64_opcode *opcode; | |
4814 | struct templates *next; | |
4815 | }; | |
4816 | ||
4817 | typedef struct templates templates; | |
4818 | ||
4819 | static templates * | |
4820 | lookup_mnemonic (const char *start, int len) | |
4821 | { | |
4822 | templates *templ = NULL; | |
4823 | ||
4824 | templ = hash_find_n (aarch64_ops_hsh, start, len); | |
4825 | return templ; | |
4826 | } | |
4827 | ||
4828 | /* Subroutine of md_assemble, responsible for looking up the primary | |
4829 | opcode from the mnemonic the user wrote. STR points to the | |
4830 | beginning of the mnemonic. */ | |
4831 | ||
4832 | static templates * | |
4833 | opcode_lookup (char **str) | |
4834 | { | |
bb7eff52 | 4835 | char *end, *base, *dot; |
a06ea964 NC |
4836 | const aarch64_cond *cond; |
4837 | char condname[16]; | |
4838 | int len; | |
4839 | ||
4840 | /* Scan up to the end of the mnemonic, which must end in white space, | |
4841 | '.', or end of string. */ | |
bb7eff52 | 4842 | dot = 0; |
a06ea964 | 4843 | for (base = end = *str; is_part_of_name(*end); end++) |
bb7eff52 RS |
4844 | if (*end == '.' && !dot) |
4845 | dot = end; | |
a06ea964 | 4846 | |
bb7eff52 | 4847 | if (end == base || dot == base) |
a06ea964 NC |
4848 | return 0; |
4849 | ||
4850 | inst.cond = COND_ALWAYS; | |
4851 | ||
4852 | /* Handle a possible condition. */ | |
bb7eff52 | 4853 | if (dot) |
a06ea964 | 4854 | { |
bb7eff52 | 4855 | cond = hash_find_n (aarch64_cond_hsh, dot + 1, end - dot - 1); |
a06ea964 NC |
4856 | if (cond) |
4857 | { | |
4858 | inst.cond = cond->value; | |
bb7eff52 | 4859 | *str = end; |
a06ea964 NC |
4860 | } |
4861 | else | |
4862 | { | |
bb7eff52 | 4863 | *str = dot; |
a06ea964 NC |
4864 | return 0; |
4865 | } | |
bb7eff52 | 4866 | len = dot - base; |
a06ea964 NC |
4867 | } |
4868 | else | |
bb7eff52 RS |
4869 | { |
4870 | *str = end; | |
4871 | len = end - base; | |
4872 | } | |
a06ea964 NC |
4873 | |
4874 | if (inst.cond == COND_ALWAYS) | |
4875 | { | |
4876 | /* Look for unaffixed mnemonic. */ | |
4877 | return lookup_mnemonic (base, len); | |
4878 | } | |
4879 | else if (len <= 13) | |
4880 | { | |
4881 | /* append ".c" to mnemonic if conditional */ | |
4882 | memcpy (condname, base, len); | |
4883 | memcpy (condname + len, ".c", 2); | |
4884 | base = condname; | |
4885 | len += 2; | |
4886 | return lookup_mnemonic (base, len); | |
4887 | } | |
4888 | ||
4889 | return NULL; | |
4890 | } | |
4891 | ||
8f9a77af RS |
4892 | /* Internal helper routine converting a vector_type_el structure *VECTYPE |
4893 | to a corresponding operand qualifier. */ | |
a06ea964 NC |
4894 | |
4895 | static inline aarch64_opnd_qualifier_t | |
8f9a77af | 4896 | vectype_to_qualifier (const struct vector_type_el *vectype) |
a06ea964 | 4897 | { |
f06935a5 | 4898 | /* Element size in bytes indexed by vector_el_type. */ |
a06ea964 NC |
4899 | const unsigned char ele_size[5] |
4900 | = {1, 2, 4, 8, 16}; | |
65f2205d MW |
4901 | const unsigned int ele_base [5] = |
4902 | { | |
4903 | AARCH64_OPND_QLF_V_8B, | |
3067d3b9 | 4904 | AARCH64_OPND_QLF_V_2H, |
65f2205d MW |
4905 | AARCH64_OPND_QLF_V_2S, |
4906 | AARCH64_OPND_QLF_V_1D, | |
4907 | AARCH64_OPND_QLF_V_1Q | |
4908 | }; | |
a06ea964 NC |
4909 | |
4910 | if (!vectype->defined || vectype->type == NT_invtype) | |
4911 | goto vectype_conversion_fail; | |
4912 | ||
d50c751e RS |
4913 | if (vectype->type == NT_zero) |
4914 | return AARCH64_OPND_QLF_P_Z; | |
4915 | if (vectype->type == NT_merge) | |
4916 | return AARCH64_OPND_QLF_P_M; | |
4917 | ||
a06ea964 NC |
4918 | gas_assert (vectype->type >= NT_b && vectype->type <= NT_q); |
4919 | ||
f11ad6bc | 4920 | if (vectype->defined & (NTA_HASINDEX | NTA_HASVARWIDTH)) |
a06ea964 NC |
4921 | /* Vector element register. */ |
4922 | return AARCH64_OPND_QLF_S_B + vectype->type; | |
4923 | else | |
4924 | { | |
4925 | /* Vector register. */ | |
4926 | int reg_size = ele_size[vectype->type] * vectype->width; | |
4927 | unsigned offset; | |
65f2205d | 4928 | unsigned shift; |
3067d3b9 | 4929 | if (reg_size != 16 && reg_size != 8 && reg_size != 4) |
a06ea964 | 4930 | goto vectype_conversion_fail; |
65f2205d MW |
4931 | |
4932 | /* The conversion is by calculating the offset from the base operand | |
4933 | qualifier for the vector type. The operand qualifiers are regular | |
4934 | enough that the offset can established by shifting the vector width by | |
4935 | a vector-type dependent amount. */ | |
4936 | shift = 0; | |
4937 | if (vectype->type == NT_b) | |
4938 | shift = 4; | |
3067d3b9 | 4939 | else if (vectype->type == NT_h || vectype->type == NT_s) |
65f2205d MW |
4940 | shift = 2; |
4941 | else if (vectype->type >= NT_d) | |
4942 | shift = 1; | |
4943 | else | |
4944 | gas_assert (0); | |
4945 | ||
4946 | offset = ele_base [vectype->type] + (vectype->width >> shift); | |
4947 | gas_assert (AARCH64_OPND_QLF_V_8B <= offset | |
4948 | && offset <= AARCH64_OPND_QLF_V_1Q); | |
4949 | return offset; | |
a06ea964 NC |
4950 | } |
4951 | ||
4952 | vectype_conversion_fail: | |
4953 | first_error (_("bad vector arrangement type")); | |
4954 | return AARCH64_OPND_QLF_NIL; | |
4955 | } | |
4956 | ||
4957 | /* Process an optional operand that is found omitted from the assembly line. | |
4958 | Fill *OPERAND for such an operand of type TYPE. OPCODE points to the | |
4959 | instruction's opcode entry while IDX is the index of this omitted operand. | |
4960 | */ | |
4961 | ||
4962 | static void | |
4963 | process_omitted_operand (enum aarch64_opnd type, const aarch64_opcode *opcode, | |
4964 | int idx, aarch64_opnd_info *operand) | |
4965 | { | |
4966 | aarch64_insn default_value = get_optional_operand_default_value (opcode); | |
4967 | gas_assert (optional_operand_p (opcode, idx)); | |
4968 | gas_assert (!operand->present); | |
4969 | ||
4970 | switch (type) | |
4971 | { | |
4972 | case AARCH64_OPND_Rd: | |
4973 | case AARCH64_OPND_Rn: | |
4974 | case AARCH64_OPND_Rm: | |
4975 | case AARCH64_OPND_Rt: | |
4976 | case AARCH64_OPND_Rt2: | |
4977 | case AARCH64_OPND_Rs: | |
4978 | case AARCH64_OPND_Ra: | |
4979 | case AARCH64_OPND_Rt_SYS: | |
4980 | case AARCH64_OPND_Rd_SP: | |
4981 | case AARCH64_OPND_Rn_SP: | |
c84364ec | 4982 | case AARCH64_OPND_Rm_SP: |
a06ea964 NC |
4983 | case AARCH64_OPND_Fd: |
4984 | case AARCH64_OPND_Fn: | |
4985 | case AARCH64_OPND_Fm: | |
4986 | case AARCH64_OPND_Fa: | |
4987 | case AARCH64_OPND_Ft: | |
4988 | case AARCH64_OPND_Ft2: | |
4989 | case AARCH64_OPND_Sd: | |
4990 | case AARCH64_OPND_Sn: | |
4991 | case AARCH64_OPND_Sm: | |
4992 | case AARCH64_OPND_Vd: | |
4993 | case AARCH64_OPND_Vn: | |
4994 | case AARCH64_OPND_Vm: | |
4995 | case AARCH64_OPND_VdD1: | |
4996 | case AARCH64_OPND_VnD1: | |
4997 | operand->reg.regno = default_value; | |
4998 | break; | |
4999 | ||
5000 | case AARCH64_OPND_Ed: | |
5001 | case AARCH64_OPND_En: | |
5002 | case AARCH64_OPND_Em: | |
5003 | operand->reglane.regno = default_value; | |
5004 | break; | |
5005 | ||
5006 | case AARCH64_OPND_IDX: | |
5007 | case AARCH64_OPND_BIT_NUM: | |
5008 | case AARCH64_OPND_IMMR: | |
5009 | case AARCH64_OPND_IMMS: | |
5010 | case AARCH64_OPND_SHLL_IMM: | |
5011 | case AARCH64_OPND_IMM_VLSL: | |
5012 | case AARCH64_OPND_IMM_VLSR: | |
5013 | case AARCH64_OPND_CCMP_IMM: | |
5014 | case AARCH64_OPND_FBITS: | |
5015 | case AARCH64_OPND_UIMM4: | |
5016 | case AARCH64_OPND_UIMM3_OP1: | |
5017 | case AARCH64_OPND_UIMM3_OP2: | |
5018 | case AARCH64_OPND_IMM: | |
5019 | case AARCH64_OPND_WIDTH: | |
5020 | case AARCH64_OPND_UIMM7: | |
5021 | case AARCH64_OPND_NZCV: | |
245d2e3f RS |
5022 | case AARCH64_OPND_SVE_PATTERN: |
5023 | case AARCH64_OPND_SVE_PRFOP: | |
a06ea964 NC |
5024 | operand->imm.value = default_value; |
5025 | break; | |
5026 | ||
2442d846 RS |
5027 | case AARCH64_OPND_SVE_PATTERN_SCALED: |
5028 | operand->imm.value = default_value; | |
5029 | operand->shifter.kind = AARCH64_MOD_MUL; | |
5030 | operand->shifter.amount = 1; | |
5031 | break; | |
5032 | ||
a06ea964 NC |
5033 | case AARCH64_OPND_EXCEPTION: |
5034 | inst.reloc.type = BFD_RELOC_UNUSED; | |
5035 | break; | |
5036 | ||
5037 | case AARCH64_OPND_BARRIER_ISB: | |
5038 | operand->barrier = aarch64_barrier_options + default_value; | |
5039 | ||
5040 | default: | |
5041 | break; | |
5042 | } | |
5043 | } | |
5044 | ||
5045 | /* Process the relocation type for move wide instructions. | |
5046 | Return TRUE on success; otherwise return FALSE. */ | |
5047 | ||
5048 | static bfd_boolean | |
5049 | process_movw_reloc_info (void) | |
5050 | { | |
5051 | int is32; | |
5052 | unsigned shift; | |
5053 | ||
5054 | is32 = inst.base.operands[0].qualifier == AARCH64_OPND_QLF_W ? 1 : 0; | |
5055 | ||
5056 | if (inst.base.opcode->op == OP_MOVK) | |
5057 | switch (inst.reloc.type) | |
5058 | { | |
5059 | case BFD_RELOC_AARCH64_MOVW_G0_S: | |
5060 | case BFD_RELOC_AARCH64_MOVW_G1_S: | |
5061 | case BFD_RELOC_AARCH64_MOVW_G2_S: | |
1aa66fb1 | 5062 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
a06ea964 | 5063 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
a06ea964 | 5064 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: |
a06ea964 NC |
5065 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: |
5066 | set_syntax_error | |
5067 | (_("the specified relocation type is not allowed for MOVK")); | |
5068 | return FALSE; | |
5069 | default: | |
5070 | break; | |
5071 | } | |
5072 | ||
5073 | switch (inst.reloc.type) | |
5074 | { | |
5075 | case BFD_RELOC_AARCH64_MOVW_G0: | |
a06ea964 | 5076 | case BFD_RELOC_AARCH64_MOVW_G0_NC: |
f09c556a | 5077 | case BFD_RELOC_AARCH64_MOVW_G0_S: |
ca632371 | 5078 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
43a357f9 | 5079 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
3e8286c0 | 5080 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
3b957e5b | 5081 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
49df5539 JW |
5082 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0: |
5083 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: | |
a06ea964 NC |
5084 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
5085 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC: | |
5086 | shift = 0; | |
5087 | break; | |
5088 | case BFD_RELOC_AARCH64_MOVW_G1: | |
a06ea964 | 5089 | case BFD_RELOC_AARCH64_MOVW_G1_NC: |
f09c556a | 5090 | case BFD_RELOC_AARCH64_MOVW_G1_S: |
654248e7 | 5091 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
43a357f9 | 5092 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: |
1aa66fb1 | 5093 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
3b957e5b | 5094 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: |
49df5539 JW |
5095 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1: |
5096 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC: | |
a06ea964 NC |
5097 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: |
5098 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC: | |
5099 | shift = 16; | |
5100 | break; | |
5101 | case BFD_RELOC_AARCH64_MOVW_G2: | |
a06ea964 | 5102 | case BFD_RELOC_AARCH64_MOVW_G2_NC: |
f09c556a | 5103 | case BFD_RELOC_AARCH64_MOVW_G2_S: |
49df5539 | 5104 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2: |
a06ea964 NC |
5105 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: |
5106 | if (is32) | |
5107 | { | |
5108 | set_fatal_syntax_error | |
5109 | (_("the specified relocation type is not allowed for 32-bit " | |
5110 | "register")); | |
5111 | return FALSE; | |
5112 | } | |
5113 | shift = 32; | |
5114 | break; | |
5115 | case BFD_RELOC_AARCH64_MOVW_G3: | |
5116 | if (is32) | |
5117 | { | |
5118 | set_fatal_syntax_error | |
5119 | (_("the specified relocation type is not allowed for 32-bit " | |
5120 | "register")); | |
5121 | return FALSE; | |
5122 | } | |
5123 | shift = 48; | |
5124 | break; | |
5125 | default: | |
5126 | /* More cases should be added when more MOVW-related relocation types | |
5127 | are supported in GAS. */ | |
5128 | gas_assert (aarch64_gas_internal_fixup_p ()); | |
5129 | /* The shift amount should have already been set by the parser. */ | |
5130 | return TRUE; | |
5131 | } | |
5132 | inst.base.operands[1].shifter.amount = shift; | |
5133 | return TRUE; | |
5134 | } | |
5135 | ||
33eaf5de | 5136 | /* A primitive log calculator. */ |
a06ea964 NC |
5137 | |
5138 | static inline unsigned int | |
5139 | get_logsz (unsigned int size) | |
5140 | { | |
5141 | const unsigned char ls[16] = | |
5142 | {0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1, 4}; | |
5143 | if (size > 16) | |
5144 | { | |
5145 | gas_assert (0); | |
5146 | return -1; | |
5147 | } | |
5148 | gas_assert (ls[size - 1] != (unsigned char)-1); | |
5149 | return ls[size - 1]; | |
5150 | } | |
5151 | ||
5152 | /* Determine and return the real reloc type code for an instruction | |
5153 | with the pseudo reloc type code BFD_RELOC_AARCH64_LDST_LO12. */ | |
5154 | ||
5155 | static inline bfd_reloc_code_real_type | |
5156 | ldst_lo12_determine_real_reloc_type (void) | |
5157 | { | |
4c562523 | 5158 | unsigned logsz; |
a06ea964 NC |
5159 | enum aarch64_opnd_qualifier opd0_qlf = inst.base.operands[0].qualifier; |
5160 | enum aarch64_opnd_qualifier opd1_qlf = inst.base.operands[1].qualifier; | |
5161 | ||
4c562523 JW |
5162 | const bfd_reloc_code_real_type reloc_ldst_lo12[3][5] = { |
5163 | { | |
5164 | BFD_RELOC_AARCH64_LDST8_LO12, | |
5165 | BFD_RELOC_AARCH64_LDST16_LO12, | |
5166 | BFD_RELOC_AARCH64_LDST32_LO12, | |
5167 | BFD_RELOC_AARCH64_LDST64_LO12, | |
a06ea964 | 5168 | BFD_RELOC_AARCH64_LDST128_LO12 |
4c562523 JW |
5169 | }, |
5170 | { | |
5171 | BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12, | |
5172 | BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12, | |
5173 | BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12, | |
5174 | BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12, | |
5175 | BFD_RELOC_AARCH64_NONE | |
5176 | }, | |
5177 | { | |
5178 | BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC, | |
5179 | BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC, | |
5180 | BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC, | |
5181 | BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC, | |
5182 | BFD_RELOC_AARCH64_NONE | |
5183 | } | |
a06ea964 NC |
5184 | }; |
5185 | ||
4c562523 JW |
5186 | gas_assert (inst.reloc.type == BFD_RELOC_AARCH64_LDST_LO12 |
5187 | || inst.reloc.type == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12 | |
5188 | || (inst.reloc.type | |
5189 | == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC)); | |
a06ea964 NC |
5190 | gas_assert (inst.base.opcode->operands[1] == AARCH64_OPND_ADDR_UIMM12); |
5191 | ||
5192 | if (opd1_qlf == AARCH64_OPND_QLF_NIL) | |
5193 | opd1_qlf = | |
5194 | aarch64_get_expected_qualifier (inst.base.opcode->qualifiers_list, | |
5195 | 1, opd0_qlf, 0); | |
5196 | gas_assert (opd1_qlf != AARCH64_OPND_QLF_NIL); | |
5197 | ||
5198 | logsz = get_logsz (aarch64_get_qualifier_esize (opd1_qlf)); | |
4c562523 JW |
5199 | if (inst.reloc.type == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12 |
5200 | || inst.reloc.type == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC) | |
5201 | gas_assert (logsz <= 3); | |
5202 | else | |
5203 | gas_assert (logsz <= 4); | |
a06ea964 | 5204 | |
4c562523 | 5205 | /* In reloc.c, these pseudo relocation types should be defined in similar |
33eaf5de | 5206 | order as above reloc_ldst_lo12 array. Because the array index calculation |
4c562523 JW |
5207 | below relies on this. */ |
5208 | return reloc_ldst_lo12[inst.reloc.type - BFD_RELOC_AARCH64_LDST_LO12][logsz]; | |
a06ea964 NC |
5209 | } |
5210 | ||
5211 | /* Check whether a register list REGINFO is valid. The registers must be | |
5212 | numbered in increasing order (modulo 32), in increments of one or two. | |
5213 | ||
5214 | If ACCEPT_ALTERNATE is non-zero, the register numbers should be in | |
5215 | increments of two. | |
5216 | ||
5217 | Return FALSE if such a register list is invalid, otherwise return TRUE. */ | |
5218 | ||
5219 | static bfd_boolean | |
5220 | reg_list_valid_p (uint32_t reginfo, int accept_alternate) | |
5221 | { | |
5222 | uint32_t i, nb_regs, prev_regno, incr; | |
5223 | ||
5224 | nb_regs = 1 + (reginfo & 0x3); | |
5225 | reginfo >>= 2; | |
5226 | prev_regno = reginfo & 0x1f; | |
5227 | incr = accept_alternate ? 2 : 1; | |
5228 | ||
5229 | for (i = 1; i < nb_regs; ++i) | |
5230 | { | |
5231 | uint32_t curr_regno; | |
5232 | reginfo >>= 5; | |
5233 | curr_regno = reginfo & 0x1f; | |
5234 | if (curr_regno != ((prev_regno + incr) & 0x1f)) | |
5235 | return FALSE; | |
5236 | prev_regno = curr_regno; | |
5237 | } | |
5238 | ||
5239 | return TRUE; | |
5240 | } | |
5241 | ||
5242 | /* Generic instruction operand parser. This does no encoding and no | |
5243 | semantic validation; it merely squirrels values away in the inst | |
5244 | structure. Returns TRUE or FALSE depending on whether the | |
5245 | specified grammar matched. */ | |
5246 | ||
5247 | static bfd_boolean | |
5248 | parse_operands (char *str, const aarch64_opcode *opcode) | |
5249 | { | |
5250 | int i; | |
5251 | char *backtrack_pos = 0; | |
5252 | const enum aarch64_opnd *operands = opcode->operands; | |
1799c0d0 | 5253 | aarch64_reg_type imm_reg_type; |
a06ea964 NC |
5254 | |
5255 | clear_error (); | |
5256 | skip_whitespace (str); | |
5257 | ||
c0890d26 RS |
5258 | if (AARCH64_CPU_HAS_FEATURE (AARCH64_FEATURE_SVE, *opcode->avariant)) |
5259 | imm_reg_type = REG_TYPE_R_Z_BHSDQ_VZP; | |
5260 | else | |
5261 | imm_reg_type = REG_TYPE_R_Z_BHSDQ_V; | |
1799c0d0 | 5262 | |
a06ea964 NC |
5263 | for (i = 0; operands[i] != AARCH64_OPND_NIL; i++) |
5264 | { | |
5265 | int64_t val; | |
e1b988bb | 5266 | const reg_entry *reg; |
a06ea964 NC |
5267 | int comma_skipped_p = 0; |
5268 | aarch64_reg_type rtype; | |
8f9a77af | 5269 | struct vector_type_el vectype; |
4df068de | 5270 | aarch64_opnd_qualifier_t qualifier, base_qualifier, offset_qualifier; |
a06ea964 | 5271 | aarch64_opnd_info *info = &inst.base.operands[i]; |
f11ad6bc | 5272 | aarch64_reg_type reg_type; |
a06ea964 NC |
5273 | |
5274 | DEBUG_TRACE ("parse operand %d", i); | |
5275 | ||
5276 | /* Assign the operand code. */ | |
5277 | info->type = operands[i]; | |
5278 | ||
5279 | if (optional_operand_p (opcode, i)) | |
5280 | { | |
5281 | /* Remember where we are in case we need to backtrack. */ | |
5282 | gas_assert (!backtrack_pos); | |
5283 | backtrack_pos = str; | |
5284 | } | |
5285 | ||
33eaf5de | 5286 | /* Expect comma between operands; the backtrack mechanism will take |
a06ea964 NC |
5287 | care of cases of omitted optional operand. */ |
5288 | if (i > 0 && ! skip_past_char (&str, ',')) | |
5289 | { | |
5290 | set_syntax_error (_("comma expected between operands")); | |
5291 | goto failure; | |
5292 | } | |
5293 | else | |
5294 | comma_skipped_p = 1; | |
5295 | ||
5296 | switch (operands[i]) | |
5297 | { | |
5298 | case AARCH64_OPND_Rd: | |
5299 | case AARCH64_OPND_Rn: | |
5300 | case AARCH64_OPND_Rm: | |
5301 | case AARCH64_OPND_Rt: | |
5302 | case AARCH64_OPND_Rt2: | |
5303 | case AARCH64_OPND_Rs: | |
5304 | case AARCH64_OPND_Ra: | |
5305 | case AARCH64_OPND_Rt_SYS: | |
ee804238 | 5306 | case AARCH64_OPND_PAIRREG: |
047cd301 | 5307 | case AARCH64_OPND_SVE_Rm: |
e1b988bb | 5308 | po_int_reg_or_fail (REG_TYPE_R_Z); |
a06ea964 NC |
5309 | break; |
5310 | ||
5311 | case AARCH64_OPND_Rd_SP: | |
5312 | case AARCH64_OPND_Rn_SP: | |
047cd301 | 5313 | case AARCH64_OPND_SVE_Rn_SP: |
c84364ec | 5314 | case AARCH64_OPND_Rm_SP: |
e1b988bb | 5315 | po_int_reg_or_fail (REG_TYPE_R_SP); |
a06ea964 NC |
5316 | break; |
5317 | ||
5318 | case AARCH64_OPND_Rm_EXT: | |
5319 | case AARCH64_OPND_Rm_SFT: | |
5320 | po_misc_or_fail (parse_shifter_operand | |
5321 | (&str, info, (operands[i] == AARCH64_OPND_Rm_EXT | |
5322 | ? SHIFTED_ARITH_IMM | |
5323 | : SHIFTED_LOGIC_IMM))); | |
5324 | if (!info->shifter.operator_present) | |
5325 | { | |
5326 | /* Default to LSL if not present. Libopcodes prefers shifter | |
5327 | kind to be explicit. */ | |
5328 | gas_assert (info->shifter.kind == AARCH64_MOD_NONE); | |
5329 | info->shifter.kind = AARCH64_MOD_LSL; | |
5330 | /* For Rm_EXT, libopcodes will carry out further check on whether | |
5331 | or not stack pointer is used in the instruction (Recall that | |
5332 | "the extend operator is not optional unless at least one of | |
5333 | "Rd" or "Rn" is '11111' (i.e. WSP)"). */ | |
5334 | } | |
5335 | break; | |
5336 | ||
5337 | case AARCH64_OPND_Fd: | |
5338 | case AARCH64_OPND_Fn: | |
5339 | case AARCH64_OPND_Fm: | |
5340 | case AARCH64_OPND_Fa: | |
5341 | case AARCH64_OPND_Ft: | |
5342 | case AARCH64_OPND_Ft2: | |
5343 | case AARCH64_OPND_Sd: | |
5344 | case AARCH64_OPND_Sn: | |
5345 | case AARCH64_OPND_Sm: | |
047cd301 RS |
5346 | case AARCH64_OPND_SVE_VZn: |
5347 | case AARCH64_OPND_SVE_Vd: | |
5348 | case AARCH64_OPND_SVE_Vm: | |
5349 | case AARCH64_OPND_SVE_Vn: | |
a06ea964 NC |
5350 | val = aarch64_reg_parse (&str, REG_TYPE_BHSDQ, &rtype, NULL); |
5351 | if (val == PARSE_FAIL) | |
5352 | { | |
5353 | first_error (_(get_reg_expected_msg (REG_TYPE_BHSDQ))); | |
5354 | goto failure; | |
5355 | } | |
5356 | gas_assert (rtype >= REG_TYPE_FP_B && rtype <= REG_TYPE_FP_Q); | |
5357 | ||
5358 | info->reg.regno = val; | |
5359 | info->qualifier = AARCH64_OPND_QLF_S_B + (rtype - REG_TYPE_FP_B); | |
5360 | break; | |
5361 | ||
f11ad6bc RS |
5362 | case AARCH64_OPND_SVE_Pd: |
5363 | case AARCH64_OPND_SVE_Pg3: | |
5364 | case AARCH64_OPND_SVE_Pg4_5: | |
5365 | case AARCH64_OPND_SVE_Pg4_10: | |
5366 | case AARCH64_OPND_SVE_Pg4_16: | |
5367 | case AARCH64_OPND_SVE_Pm: | |
5368 | case AARCH64_OPND_SVE_Pn: | |
5369 | case AARCH64_OPND_SVE_Pt: | |
5370 | reg_type = REG_TYPE_PN; | |
5371 | goto vector_reg; | |
5372 | ||
5373 | case AARCH64_OPND_SVE_Za_5: | |
5374 | case AARCH64_OPND_SVE_Za_16: | |
5375 | case AARCH64_OPND_SVE_Zd: | |
5376 | case AARCH64_OPND_SVE_Zm_5: | |
5377 | case AARCH64_OPND_SVE_Zm_16: | |
5378 | case AARCH64_OPND_SVE_Zn: | |
5379 | case AARCH64_OPND_SVE_Zt: | |
5380 | reg_type = REG_TYPE_ZN; | |
5381 | goto vector_reg; | |
5382 | ||
a06ea964 NC |
5383 | case AARCH64_OPND_Vd: |
5384 | case AARCH64_OPND_Vn: | |
5385 | case AARCH64_OPND_Vm: | |
f11ad6bc RS |
5386 | reg_type = REG_TYPE_VN; |
5387 | vector_reg: | |
5388 | val = aarch64_reg_parse (&str, reg_type, NULL, &vectype); | |
a06ea964 NC |
5389 | if (val == PARSE_FAIL) |
5390 | { | |
f11ad6bc | 5391 | first_error (_(get_reg_expected_msg (reg_type))); |
a06ea964 NC |
5392 | goto failure; |
5393 | } | |
5394 | if (vectype.defined & NTA_HASINDEX) | |
5395 | goto failure; | |
5396 | ||
5397 | info->reg.regno = val; | |
f11ad6bc RS |
5398 | if ((reg_type == REG_TYPE_PN || reg_type == REG_TYPE_ZN) |
5399 | && vectype.type == NT_invtype) | |
5400 | /* Unqualified Pn and Zn registers are allowed in certain | |
5401 | contexts. Rely on F_STRICT qualifier checking to catch | |
5402 | invalid uses. */ | |
5403 | info->qualifier = AARCH64_OPND_QLF_NIL; | |
5404 | else | |
5405 | { | |
5406 | info->qualifier = vectype_to_qualifier (&vectype); | |
5407 | if (info->qualifier == AARCH64_OPND_QLF_NIL) | |
5408 | goto failure; | |
5409 | } | |
a06ea964 NC |
5410 | break; |
5411 | ||
5412 | case AARCH64_OPND_VdD1: | |
5413 | case AARCH64_OPND_VnD1: | |
5414 | val = aarch64_reg_parse (&str, REG_TYPE_VN, NULL, &vectype); | |
5415 | if (val == PARSE_FAIL) | |
5416 | { | |
5417 | set_first_syntax_error (_(get_reg_expected_msg (REG_TYPE_VN))); | |
5418 | goto failure; | |
5419 | } | |
5420 | if (vectype.type != NT_d || vectype.index != 1) | |
5421 | { | |
5422 | set_fatal_syntax_error | |
5423 | (_("the top half of a 128-bit FP/SIMD register is expected")); | |
5424 | goto failure; | |
5425 | } | |
5426 | info->reg.regno = val; | |
5427 | /* N.B: VdD1 and VnD1 are treated as an fp or advsimd scalar register | |
5428 | here; it is correct for the purpose of encoding/decoding since | |
5429 | only the register number is explicitly encoded in the related | |
5430 | instructions, although this appears a bit hacky. */ | |
5431 | info->qualifier = AARCH64_OPND_QLF_S_D; | |
5432 | break; | |
5433 | ||
f11ad6bc RS |
5434 | case AARCH64_OPND_SVE_Zn_INDEX: |
5435 | reg_type = REG_TYPE_ZN; | |
5436 | goto vector_reg_index; | |
5437 | ||
a06ea964 NC |
5438 | case AARCH64_OPND_Ed: |
5439 | case AARCH64_OPND_En: | |
5440 | case AARCH64_OPND_Em: | |
f11ad6bc RS |
5441 | reg_type = REG_TYPE_VN; |
5442 | vector_reg_index: | |
5443 | val = aarch64_reg_parse (&str, reg_type, NULL, &vectype); | |
a06ea964 NC |
5444 | if (val == PARSE_FAIL) |
5445 | { | |
f11ad6bc | 5446 | first_error (_(get_reg_expected_msg (reg_type))); |
a06ea964 NC |
5447 | goto failure; |
5448 | } | |
5449 | if (vectype.type == NT_invtype || !(vectype.defined & NTA_HASINDEX)) | |
5450 | goto failure; | |
5451 | ||
5452 | info->reglane.regno = val; | |
5453 | info->reglane.index = vectype.index; | |
5454 | info->qualifier = vectype_to_qualifier (&vectype); | |
5455 | if (info->qualifier == AARCH64_OPND_QLF_NIL) | |
5456 | goto failure; | |
5457 | break; | |
5458 | ||
f11ad6bc RS |
5459 | case AARCH64_OPND_SVE_ZnxN: |
5460 | case AARCH64_OPND_SVE_ZtxN: | |
5461 | reg_type = REG_TYPE_ZN; | |
5462 | goto vector_reg_list; | |
5463 | ||
a06ea964 NC |
5464 | case AARCH64_OPND_LVn: |
5465 | case AARCH64_OPND_LVt: | |
5466 | case AARCH64_OPND_LVt_AL: | |
5467 | case AARCH64_OPND_LEt: | |
f11ad6bc RS |
5468 | reg_type = REG_TYPE_VN; |
5469 | vector_reg_list: | |
5470 | if (reg_type == REG_TYPE_ZN | |
5471 | && get_opcode_dependent_value (opcode) == 1 | |
5472 | && *str != '{') | |
a06ea964 | 5473 | { |
f11ad6bc RS |
5474 | val = aarch64_reg_parse (&str, reg_type, NULL, &vectype); |
5475 | if (val == PARSE_FAIL) | |
5476 | { | |
5477 | first_error (_(get_reg_expected_msg (reg_type))); | |
5478 | goto failure; | |
5479 | } | |
5480 | info->reglist.first_regno = val; | |
5481 | info->reglist.num_regs = 1; | |
5482 | } | |
5483 | else | |
5484 | { | |
5485 | val = parse_vector_reg_list (&str, reg_type, &vectype); | |
5486 | if (val == PARSE_FAIL) | |
5487 | goto failure; | |
5488 | if (! reg_list_valid_p (val, /* accept_alternate */ 0)) | |
5489 | { | |
5490 | set_fatal_syntax_error (_("invalid register list")); | |
5491 | goto failure; | |
5492 | } | |
5493 | info->reglist.first_regno = (val >> 2) & 0x1f; | |
5494 | info->reglist.num_regs = (val & 0x3) + 1; | |
a06ea964 | 5495 | } |
a06ea964 NC |
5496 | if (operands[i] == AARCH64_OPND_LEt) |
5497 | { | |
5498 | if (!(vectype.defined & NTA_HASINDEX)) | |
5499 | goto failure; | |
5500 | info->reglist.has_index = 1; | |
5501 | info->reglist.index = vectype.index; | |
5502 | } | |
f11ad6bc RS |
5503 | else |
5504 | { | |
5505 | if (vectype.defined & NTA_HASINDEX) | |
5506 | goto failure; | |
5507 | if (!(vectype.defined & NTA_HASTYPE)) | |
5508 | { | |
5509 | if (reg_type == REG_TYPE_ZN) | |
5510 | set_fatal_syntax_error (_("missing type suffix")); | |
5511 | goto failure; | |
5512 | } | |
5513 | } | |
a06ea964 NC |
5514 | info->qualifier = vectype_to_qualifier (&vectype); |
5515 | if (info->qualifier == AARCH64_OPND_QLF_NIL) | |
5516 | goto failure; | |
5517 | break; | |
5518 | ||
a6a51754 RL |
5519 | case AARCH64_OPND_CRn: |
5520 | case AARCH64_OPND_CRm: | |
a06ea964 | 5521 | { |
a6a51754 RL |
5522 | char prefix = *(str++); |
5523 | if (prefix != 'c' && prefix != 'C') | |
5524 | goto failure; | |
5525 | ||
5526 | po_imm_nc_or_fail (); | |
5527 | if (val > 15) | |
5528 | { | |
5529 | set_fatal_syntax_error (_(N_ ("C0 - C15 expected"))); | |
5530 | goto failure; | |
5531 | } | |
5532 | info->qualifier = AARCH64_OPND_QLF_CR; | |
5533 | info->imm.value = val; | |
5534 | break; | |
a06ea964 | 5535 | } |
a06ea964 NC |
5536 | |
5537 | case AARCH64_OPND_SHLL_IMM: | |
5538 | case AARCH64_OPND_IMM_VLSR: | |
5539 | po_imm_or_fail (1, 64); | |
5540 | info->imm.value = val; | |
5541 | break; | |
5542 | ||
5543 | case AARCH64_OPND_CCMP_IMM: | |
e950b345 | 5544 | case AARCH64_OPND_SIMM5: |
a06ea964 NC |
5545 | case AARCH64_OPND_FBITS: |
5546 | case AARCH64_OPND_UIMM4: | |
5547 | case AARCH64_OPND_UIMM3_OP1: | |
5548 | case AARCH64_OPND_UIMM3_OP2: | |
5549 | case AARCH64_OPND_IMM_VLSL: | |
5550 | case AARCH64_OPND_IMM: | |
5551 | case AARCH64_OPND_WIDTH: | |
e950b345 RS |
5552 | case AARCH64_OPND_SVE_INV_LIMM: |
5553 | case AARCH64_OPND_SVE_LIMM: | |
5554 | case AARCH64_OPND_SVE_LIMM_MOV: | |
5555 | case AARCH64_OPND_SVE_SHLIMM_PRED: | |
5556 | case AARCH64_OPND_SVE_SHLIMM_UNPRED: | |
5557 | case AARCH64_OPND_SVE_SHRIMM_PRED: | |
5558 | case AARCH64_OPND_SVE_SHRIMM_UNPRED: | |
5559 | case AARCH64_OPND_SVE_SIMM5: | |
5560 | case AARCH64_OPND_SVE_SIMM5B: | |
5561 | case AARCH64_OPND_SVE_SIMM6: | |
5562 | case AARCH64_OPND_SVE_SIMM8: | |
5563 | case AARCH64_OPND_SVE_UIMM3: | |
5564 | case AARCH64_OPND_SVE_UIMM7: | |
5565 | case AARCH64_OPND_SVE_UIMM8: | |
5566 | case AARCH64_OPND_SVE_UIMM8_53: | |
c2c4ff8d SN |
5567 | case AARCH64_OPND_IMM_ROT1: |
5568 | case AARCH64_OPND_IMM_ROT2: | |
5569 | case AARCH64_OPND_IMM_ROT3: | |
a06ea964 NC |
5570 | po_imm_nc_or_fail (); |
5571 | info->imm.value = val; | |
5572 | break; | |
5573 | ||
e950b345 RS |
5574 | case AARCH64_OPND_SVE_AIMM: |
5575 | case AARCH64_OPND_SVE_ASIMM: | |
5576 | po_imm_nc_or_fail (); | |
5577 | info->imm.value = val; | |
5578 | skip_whitespace (str); | |
5579 | if (skip_past_comma (&str)) | |
5580 | po_misc_or_fail (parse_shift (&str, info, SHIFTED_LSL)); | |
5581 | else | |
5582 | inst.base.operands[i].shifter.kind = AARCH64_MOD_LSL; | |
5583 | break; | |
5584 | ||
245d2e3f RS |
5585 | case AARCH64_OPND_SVE_PATTERN: |
5586 | po_enum_or_fail (aarch64_sve_pattern_array); | |
5587 | info->imm.value = val; | |
5588 | break; | |
5589 | ||
2442d846 RS |
5590 | case AARCH64_OPND_SVE_PATTERN_SCALED: |
5591 | po_enum_or_fail (aarch64_sve_pattern_array); | |
5592 | info->imm.value = val; | |
5593 | if (skip_past_comma (&str) | |
5594 | && !parse_shift (&str, info, SHIFTED_MUL)) | |
5595 | goto failure; | |
5596 | if (!info->shifter.operator_present) | |
5597 | { | |
5598 | gas_assert (info->shifter.kind == AARCH64_MOD_NONE); | |
5599 | info->shifter.kind = AARCH64_MOD_MUL; | |
5600 | info->shifter.amount = 1; | |
5601 | } | |
5602 | break; | |
5603 | ||
245d2e3f RS |
5604 | case AARCH64_OPND_SVE_PRFOP: |
5605 | po_enum_or_fail (aarch64_sve_prfop_array); | |
5606 | info->imm.value = val; | |
5607 | break; | |
5608 | ||
a06ea964 NC |
5609 | case AARCH64_OPND_UIMM7: |
5610 | po_imm_or_fail (0, 127); | |
5611 | info->imm.value = val; | |
5612 | break; | |
5613 | ||
5614 | case AARCH64_OPND_IDX: | |
5615 | case AARCH64_OPND_BIT_NUM: | |
5616 | case AARCH64_OPND_IMMR: | |
5617 | case AARCH64_OPND_IMMS: | |
5618 | po_imm_or_fail (0, 63); | |
5619 | info->imm.value = val; | |
5620 | break; | |
5621 | ||
5622 | case AARCH64_OPND_IMM0: | |
5623 | po_imm_nc_or_fail (); | |
5624 | if (val != 0) | |
5625 | { | |
5626 | set_fatal_syntax_error (_("immediate zero expected")); | |
5627 | goto failure; | |
5628 | } | |
5629 | info->imm.value = 0; | |
5630 | break; | |
5631 | ||
5632 | case AARCH64_OPND_FPIMM0: | |
5633 | { | |
5634 | int qfloat; | |
5635 | bfd_boolean res1 = FALSE, res2 = FALSE; | |
5636 | /* N.B. -0.0 will be rejected; although -0.0 shouldn't be rejected, | |
5637 | it is probably not worth the effort to support it. */ | |
1799c0d0 RS |
5638 | if (!(res1 = parse_aarch64_imm_float (&str, &qfloat, FALSE, |
5639 | imm_reg_type)) | |
6a9deabe RS |
5640 | && (error_p () |
5641 | || !(res2 = parse_constant_immediate (&str, &val, | |
5642 | imm_reg_type)))) | |
a06ea964 NC |
5643 | goto failure; |
5644 | if ((res1 && qfloat == 0) || (res2 && val == 0)) | |
5645 | { | |
5646 | info->imm.value = 0; | |
5647 | info->imm.is_fp = 1; | |
5648 | break; | |
5649 | } | |
5650 | set_fatal_syntax_error (_("immediate zero expected")); | |
5651 | goto failure; | |
5652 | } | |
5653 | ||
5654 | case AARCH64_OPND_IMM_MOV: | |
5655 | { | |
5656 | char *saved = str; | |
8db49cc2 WN |
5657 | if (reg_name_p (str, REG_TYPE_R_Z_SP) || |
5658 | reg_name_p (str, REG_TYPE_VN)) | |
a06ea964 NC |
5659 | goto failure; |
5660 | str = saved; | |
5661 | po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str, | |
5662 | GE_OPT_PREFIX, 1)); | |
5663 | /* The MOV immediate alias will be fixed up by fix_mov_imm_insn | |
5664 | later. fix_mov_imm_insn will try to determine a machine | |
5665 | instruction (MOVZ, MOVN or ORR) for it and will issue an error | |
5666 | message if the immediate cannot be moved by a single | |
5667 | instruction. */ | |
5668 | aarch64_set_gas_internal_fixup (&inst.reloc, info, 1); | |
5669 | inst.base.operands[i].skip = 1; | |
5670 | } | |
5671 | break; | |
5672 | ||
5673 | case AARCH64_OPND_SIMD_IMM: | |
5674 | case AARCH64_OPND_SIMD_IMM_SFT: | |
1799c0d0 | 5675 | if (! parse_big_immediate (&str, &val, imm_reg_type)) |
a06ea964 NC |
5676 | goto failure; |
5677 | assign_imm_if_const_or_fixup_later (&inst.reloc, info, | |
5678 | /* addr_off_p */ 0, | |
5679 | /* need_libopcodes_p */ 1, | |
5680 | /* skip_p */ 1); | |
5681 | /* Parse shift. | |
5682 | N.B. although AARCH64_OPND_SIMD_IMM doesn't permit any | |
5683 | shift, we don't check it here; we leave the checking to | |
5684 | the libopcodes (operand_general_constraint_met_p). By | |
5685 | doing this, we achieve better diagnostics. */ | |
5686 | if (skip_past_comma (&str) | |
5687 | && ! parse_shift (&str, info, SHIFTED_LSL_MSL)) | |
5688 | goto failure; | |
5689 | if (!info->shifter.operator_present | |
5690 | && info->type == AARCH64_OPND_SIMD_IMM_SFT) | |
5691 | { | |
5692 | /* Default to LSL if not present. Libopcodes prefers shifter | |
5693 | kind to be explicit. */ | |
5694 | gas_assert (info->shifter.kind == AARCH64_MOD_NONE); | |
5695 | info->shifter.kind = AARCH64_MOD_LSL; | |
5696 | } | |
5697 | break; | |
5698 | ||
5699 | case AARCH64_OPND_FPIMM: | |
5700 | case AARCH64_OPND_SIMD_FPIMM: | |
165d4950 | 5701 | case AARCH64_OPND_SVE_FPIMM8: |
a06ea964 NC |
5702 | { |
5703 | int qfloat; | |
165d4950 RS |
5704 | bfd_boolean dp_p; |
5705 | ||
5706 | dp_p = double_precision_operand_p (&inst.base.operands[0]); | |
6a9deabe | 5707 | if (!parse_aarch64_imm_float (&str, &qfloat, dp_p, imm_reg_type) |
874d7e6e | 5708 | || !aarch64_imm_float_p (qfloat)) |
a06ea964 | 5709 | { |
6a9deabe RS |
5710 | if (!error_p ()) |
5711 | set_fatal_syntax_error (_("invalid floating-point" | |
5712 | " constant")); | |
a06ea964 NC |
5713 | goto failure; |
5714 | } | |
5715 | inst.base.operands[i].imm.value = encode_imm_float_bits (qfloat); | |
5716 | inst.base.operands[i].imm.is_fp = 1; | |
5717 | } | |
5718 | break; | |
5719 | ||
165d4950 RS |
5720 | case AARCH64_OPND_SVE_I1_HALF_ONE: |
5721 | case AARCH64_OPND_SVE_I1_HALF_TWO: | |
5722 | case AARCH64_OPND_SVE_I1_ZERO_ONE: | |
5723 | { | |
5724 | int qfloat; | |
5725 | bfd_boolean dp_p; | |
5726 | ||
5727 | dp_p = double_precision_operand_p (&inst.base.operands[0]); | |
5728 | if (!parse_aarch64_imm_float (&str, &qfloat, dp_p, imm_reg_type)) | |
5729 | { | |
5730 | if (!error_p ()) | |
5731 | set_fatal_syntax_error (_("invalid floating-point" | |
5732 | " constant")); | |
5733 | goto failure; | |
5734 | } | |
5735 | inst.base.operands[i].imm.value = qfloat; | |
5736 | inst.base.operands[i].imm.is_fp = 1; | |
5737 | } | |
5738 | break; | |
5739 | ||
a06ea964 NC |
5740 | case AARCH64_OPND_LIMM: |
5741 | po_misc_or_fail (parse_shifter_operand (&str, info, | |
5742 | SHIFTED_LOGIC_IMM)); | |
5743 | if (info->shifter.operator_present) | |
5744 | { | |
5745 | set_fatal_syntax_error | |
5746 | (_("shift not allowed for bitmask immediate")); | |
5747 | goto failure; | |
5748 | } | |
5749 | assign_imm_if_const_or_fixup_later (&inst.reloc, info, | |
5750 | /* addr_off_p */ 0, | |
5751 | /* need_libopcodes_p */ 1, | |
5752 | /* skip_p */ 1); | |
5753 | break; | |
5754 | ||
5755 | case AARCH64_OPND_AIMM: | |
5756 | if (opcode->op == OP_ADD) | |
5757 | /* ADD may have relocation types. */ | |
5758 | po_misc_or_fail (parse_shifter_operand_reloc (&str, info, | |
5759 | SHIFTED_ARITH_IMM)); | |
5760 | else | |
5761 | po_misc_or_fail (parse_shifter_operand (&str, info, | |
5762 | SHIFTED_ARITH_IMM)); | |
5763 | switch (inst.reloc.type) | |
5764 | { | |
5765 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: | |
5766 | info->shifter.amount = 12; | |
5767 | break; | |
5768 | case BFD_RELOC_UNUSED: | |
5769 | aarch64_set_gas_internal_fixup (&inst.reloc, info, 0); | |
5770 | if (info->shifter.kind != AARCH64_MOD_NONE) | |
5771 | inst.reloc.flags = FIXUP_F_HAS_EXPLICIT_SHIFT; | |
5772 | inst.reloc.pc_rel = 0; | |
5773 | break; | |
5774 | default: | |
5775 | break; | |
5776 | } | |
5777 | info->imm.value = 0; | |
5778 | if (!info->shifter.operator_present) | |
5779 | { | |
5780 | /* Default to LSL if not present. Libopcodes prefers shifter | |
5781 | kind to be explicit. */ | |
5782 | gas_assert (info->shifter.kind == AARCH64_MOD_NONE); | |
5783 | info->shifter.kind = AARCH64_MOD_LSL; | |
5784 | } | |
5785 | break; | |
5786 | ||
5787 | case AARCH64_OPND_HALF: | |
5788 | { | |
5789 | /* #<imm16> or relocation. */ | |
5790 | int internal_fixup_p; | |
5791 | po_misc_or_fail (parse_half (&str, &internal_fixup_p)); | |
5792 | if (internal_fixup_p) | |
5793 | aarch64_set_gas_internal_fixup (&inst.reloc, info, 0); | |
5794 | skip_whitespace (str); | |
5795 | if (skip_past_comma (&str)) | |
5796 | { | |
5797 | /* {, LSL #<shift>} */ | |
5798 | if (! aarch64_gas_internal_fixup_p ()) | |
5799 | { | |
5800 | set_fatal_syntax_error (_("can't mix relocation modifier " | |
5801 | "with explicit shift")); | |
5802 | goto failure; | |
5803 | } | |
5804 | po_misc_or_fail (parse_shift (&str, info, SHIFTED_LSL)); | |
5805 | } | |
5806 | else | |
5807 | inst.base.operands[i].shifter.amount = 0; | |
5808 | inst.base.operands[i].shifter.kind = AARCH64_MOD_LSL; | |
5809 | inst.base.operands[i].imm.value = 0; | |
5810 | if (! process_movw_reloc_info ()) | |
5811 | goto failure; | |
5812 | } | |
5813 | break; | |
5814 | ||
5815 | case AARCH64_OPND_EXCEPTION: | |
1799c0d0 RS |
5816 | po_misc_or_fail (parse_immediate_expression (&str, &inst.reloc.exp, |
5817 | imm_reg_type)); | |
a06ea964 NC |
5818 | assign_imm_if_const_or_fixup_later (&inst.reloc, info, |
5819 | /* addr_off_p */ 0, | |
5820 | /* need_libopcodes_p */ 0, | |
5821 | /* skip_p */ 1); | |
5822 | break; | |
5823 | ||
5824 | case AARCH64_OPND_NZCV: | |
5825 | { | |
5826 | const asm_nzcv *nzcv = hash_find_n (aarch64_nzcv_hsh, str, 4); | |
5827 | if (nzcv != NULL) | |
5828 | { | |
5829 | str += 4; | |
5830 | info->imm.value = nzcv->value; | |
5831 | break; | |
5832 | } | |
5833 | po_imm_or_fail (0, 15); | |
5834 | info->imm.value = val; | |
5835 | } | |
5836 | break; | |
5837 | ||
5838 | case AARCH64_OPND_COND: | |
68a64283 | 5839 | case AARCH64_OPND_COND1: |
bb7eff52 RS |
5840 | { |
5841 | char *start = str; | |
5842 | do | |
5843 | str++; | |
5844 | while (ISALPHA (*str)); | |
5845 | info->cond = hash_find_n (aarch64_cond_hsh, start, str - start); | |
5846 | if (info->cond == NULL) | |
5847 | { | |
5848 | set_syntax_error (_("invalid condition")); | |
5849 | goto failure; | |
5850 | } | |
5851 | else if (operands[i] == AARCH64_OPND_COND1 | |
5852 | && (info->cond->value & 0xe) == 0xe) | |
5853 | { | |
5854 | /* Do not allow AL or NV. */ | |
5855 | set_default_error (); | |
5856 | goto failure; | |
5857 | } | |
5858 | } | |
a06ea964 NC |
5859 | break; |
5860 | ||
5861 | case AARCH64_OPND_ADDR_ADRP: | |
5862 | po_misc_or_fail (parse_adrp (&str)); | |
5863 | /* Clear the value as operand needs to be relocated. */ | |
5864 | info->imm.value = 0; | |
5865 | break; | |
5866 | ||
5867 | case AARCH64_OPND_ADDR_PCREL14: | |
5868 | case AARCH64_OPND_ADDR_PCREL19: | |
5869 | case AARCH64_OPND_ADDR_PCREL21: | |
5870 | case AARCH64_OPND_ADDR_PCREL26: | |
73866052 | 5871 | po_misc_or_fail (parse_address (&str, info)); |
a06ea964 NC |
5872 | if (!info->addr.pcrel) |
5873 | { | |
5874 | set_syntax_error (_("invalid pc-relative address")); | |
5875 | goto failure; | |
5876 | } | |
5877 | if (inst.gen_lit_pool | |
5878 | && (opcode->iclass != loadlit || opcode->op == OP_PRFM_LIT)) | |
5879 | { | |
5880 | /* Only permit "=value" in the literal load instructions. | |
5881 | The literal will be generated by programmer_friendly_fixup. */ | |
5882 | set_syntax_error (_("invalid use of \"=immediate\"")); | |
5883 | goto failure; | |
5884 | } | |
5885 | if (inst.reloc.exp.X_op == O_symbol && find_reloc_table_entry (&str)) | |
5886 | { | |
5887 | set_syntax_error (_("unrecognized relocation suffix")); | |
5888 | goto failure; | |
5889 | } | |
5890 | if (inst.reloc.exp.X_op == O_constant && !inst.gen_lit_pool) | |
5891 | { | |
5892 | info->imm.value = inst.reloc.exp.X_add_number; | |
5893 | inst.reloc.type = BFD_RELOC_UNUSED; | |
5894 | } | |
5895 | else | |
5896 | { | |
5897 | info->imm.value = 0; | |
f41aef5f RE |
5898 | if (inst.reloc.type == BFD_RELOC_UNUSED) |
5899 | switch (opcode->iclass) | |
5900 | { | |
5901 | case compbranch: | |
5902 | case condbranch: | |
5903 | /* e.g. CBZ or B.COND */ | |
5904 | gas_assert (operands[i] == AARCH64_OPND_ADDR_PCREL19); | |
5905 | inst.reloc.type = BFD_RELOC_AARCH64_BRANCH19; | |
5906 | break; | |
5907 | case testbranch: | |
5908 | /* e.g. TBZ */ | |
5909 | gas_assert (operands[i] == AARCH64_OPND_ADDR_PCREL14); | |
5910 | inst.reloc.type = BFD_RELOC_AARCH64_TSTBR14; | |
5911 | break; | |
5912 | case branch_imm: | |
5913 | /* e.g. B or BL */ | |
5914 | gas_assert (operands[i] == AARCH64_OPND_ADDR_PCREL26); | |
5915 | inst.reloc.type = | |
5916 | (opcode->op == OP_BL) ? BFD_RELOC_AARCH64_CALL26 | |
5917 | : BFD_RELOC_AARCH64_JUMP26; | |
5918 | break; | |
5919 | case loadlit: | |
5920 | gas_assert (operands[i] == AARCH64_OPND_ADDR_PCREL19); | |
5921 | inst.reloc.type = BFD_RELOC_AARCH64_LD_LO19_PCREL; | |
5922 | break; | |
5923 | case pcreladdr: | |
5924 | gas_assert (operands[i] == AARCH64_OPND_ADDR_PCREL21); | |
5925 | inst.reloc.type = BFD_RELOC_AARCH64_ADR_LO21_PCREL; | |
5926 | break; | |
5927 | default: | |
5928 | gas_assert (0); | |
5929 | abort (); | |
5930 | } | |
a06ea964 NC |
5931 | inst.reloc.pc_rel = 1; |
5932 | } | |
5933 | break; | |
5934 | ||
5935 | case AARCH64_OPND_ADDR_SIMPLE: | |
5936 | case AARCH64_OPND_SIMD_ADDR_SIMPLE: | |
e1b988bb RS |
5937 | { |
5938 | /* [<Xn|SP>{, #<simm>}] */ | |
5939 | char *start = str; | |
5940 | /* First use the normal address-parsing routines, to get | |
5941 | the usual syntax errors. */ | |
73866052 | 5942 | po_misc_or_fail (parse_address (&str, info)); |
e1b988bb RS |
5943 | if (info->addr.pcrel || info->addr.offset.is_reg |
5944 | || !info->addr.preind || info->addr.postind | |
5945 | || info->addr.writeback) | |
5946 | { | |
5947 | set_syntax_error (_("invalid addressing mode")); | |
5948 | goto failure; | |
5949 | } | |
5950 | ||
5951 | /* Then retry, matching the specific syntax of these addresses. */ | |
5952 | str = start; | |
5953 | po_char_or_fail ('['); | |
5954 | po_reg_or_fail (REG_TYPE_R64_SP); | |
5955 | /* Accept optional ", #0". */ | |
5956 | if (operands[i] == AARCH64_OPND_ADDR_SIMPLE | |
5957 | && skip_past_char (&str, ',')) | |
5958 | { | |
5959 | skip_past_char (&str, '#'); | |
5960 | if (! skip_past_char (&str, '0')) | |
5961 | { | |
5962 | set_fatal_syntax_error | |
5963 | (_("the optional immediate offset can only be 0")); | |
5964 | goto failure; | |
5965 | } | |
5966 | } | |
5967 | po_char_or_fail (']'); | |
5968 | break; | |
5969 | } | |
a06ea964 NC |
5970 | |
5971 | case AARCH64_OPND_ADDR_REGOFF: | |
5972 | /* [<Xn|SP>, <R><m>{, <extend> {<amount>}}] */ | |
73866052 | 5973 | po_misc_or_fail (parse_address (&str, info)); |
4df068de | 5974 | regoff_addr: |
a06ea964 NC |
5975 | if (info->addr.pcrel || !info->addr.offset.is_reg |
5976 | || !info->addr.preind || info->addr.postind | |
5977 | || info->addr.writeback) | |
5978 | { | |
5979 | set_syntax_error (_("invalid addressing mode")); | |
5980 | goto failure; | |
5981 | } | |
5982 | if (!info->shifter.operator_present) | |
5983 | { | |
5984 | /* Default to LSL if not present. Libopcodes prefers shifter | |
5985 | kind to be explicit. */ | |
5986 | gas_assert (info->shifter.kind == AARCH64_MOD_NONE); | |
5987 | info->shifter.kind = AARCH64_MOD_LSL; | |
5988 | } | |
5989 | /* Qualifier to be deduced by libopcodes. */ | |
5990 | break; | |
5991 | ||
5992 | case AARCH64_OPND_ADDR_SIMM7: | |
73866052 | 5993 | po_misc_or_fail (parse_address (&str, info)); |
a06ea964 NC |
5994 | if (info->addr.pcrel || info->addr.offset.is_reg |
5995 | || (!info->addr.preind && !info->addr.postind)) | |
5996 | { | |
5997 | set_syntax_error (_("invalid addressing mode")); | |
5998 | goto failure; | |
5999 | } | |
73866052 RS |
6000 | if (inst.reloc.type != BFD_RELOC_UNUSED) |
6001 | { | |
6002 | set_syntax_error (_("relocation not allowed")); | |
6003 | goto failure; | |
6004 | } | |
a06ea964 NC |
6005 | assign_imm_if_const_or_fixup_later (&inst.reloc, info, |
6006 | /* addr_off_p */ 1, | |
6007 | /* need_libopcodes_p */ 1, | |
6008 | /* skip_p */ 0); | |
6009 | break; | |
6010 | ||
6011 | case AARCH64_OPND_ADDR_SIMM9: | |
6012 | case AARCH64_OPND_ADDR_SIMM9_2: | |
73866052 | 6013 | po_misc_or_fail (parse_address (&str, info)); |
a06ea964 NC |
6014 | if (info->addr.pcrel || info->addr.offset.is_reg |
6015 | || (!info->addr.preind && !info->addr.postind) | |
6016 | || (operands[i] == AARCH64_OPND_ADDR_SIMM9_2 | |
6017 | && info->addr.writeback)) | |
6018 | { | |
6019 | set_syntax_error (_("invalid addressing mode")); | |
6020 | goto failure; | |
6021 | } | |
6022 | if (inst.reloc.type != BFD_RELOC_UNUSED) | |
6023 | { | |
6024 | set_syntax_error (_("relocation not allowed")); | |
6025 | goto failure; | |
6026 | } | |
6027 | assign_imm_if_const_or_fixup_later (&inst.reloc, info, | |
6028 | /* addr_off_p */ 1, | |
6029 | /* need_libopcodes_p */ 1, | |
6030 | /* skip_p */ 0); | |
6031 | break; | |
6032 | ||
3f06e550 SN |
6033 | case AARCH64_OPND_ADDR_SIMM10: |
6034 | po_misc_or_fail (parse_address (&str, info)); | |
6035 | if (info->addr.pcrel || info->addr.offset.is_reg | |
6036 | || !info->addr.preind || info->addr.postind) | |
6037 | { | |
6038 | set_syntax_error (_("invalid addressing mode")); | |
6039 | goto failure; | |
6040 | } | |
6041 | if (inst.reloc.type != BFD_RELOC_UNUSED) | |
6042 | { | |
6043 | set_syntax_error (_("relocation not allowed")); | |
6044 | goto failure; | |
6045 | } | |
6046 | assign_imm_if_const_or_fixup_later (&inst.reloc, info, | |
6047 | /* addr_off_p */ 1, | |
6048 | /* need_libopcodes_p */ 1, | |
6049 | /* skip_p */ 0); | |
6050 | break; | |
6051 | ||
a06ea964 | 6052 | case AARCH64_OPND_ADDR_UIMM12: |
73866052 | 6053 | po_misc_or_fail (parse_address (&str, info)); |
a06ea964 NC |
6054 | if (info->addr.pcrel || info->addr.offset.is_reg |
6055 | || !info->addr.preind || info->addr.writeback) | |
6056 | { | |
6057 | set_syntax_error (_("invalid addressing mode")); | |
6058 | goto failure; | |
6059 | } | |
6060 | if (inst.reloc.type == BFD_RELOC_UNUSED) | |
6061 | aarch64_set_gas_internal_fixup (&inst.reloc, info, 1); | |
4c562523 JW |
6062 | else if (inst.reloc.type == BFD_RELOC_AARCH64_LDST_LO12 |
6063 | || (inst.reloc.type | |
6064 | == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12) | |
6065 | || (inst.reloc.type | |
6066 | == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC)) | |
a06ea964 NC |
6067 | inst.reloc.type = ldst_lo12_determine_real_reloc_type (); |
6068 | /* Leave qualifier to be determined by libopcodes. */ | |
6069 | break; | |
6070 | ||
6071 | case AARCH64_OPND_SIMD_ADDR_POST: | |
6072 | /* [<Xn|SP>], <Xm|#<amount>> */ | |
73866052 | 6073 | po_misc_or_fail (parse_address (&str, info)); |
a06ea964 NC |
6074 | if (!info->addr.postind || !info->addr.writeback) |
6075 | { | |
6076 | set_syntax_error (_("invalid addressing mode")); | |
6077 | goto failure; | |
6078 | } | |
6079 | if (!info->addr.offset.is_reg) | |
6080 | { | |
6081 | if (inst.reloc.exp.X_op == O_constant) | |
6082 | info->addr.offset.imm = inst.reloc.exp.X_add_number; | |
6083 | else | |
6084 | { | |
6085 | set_fatal_syntax_error | |
ab3b8fcf | 6086 | (_("writeback value must be an immediate constant")); |
a06ea964 NC |
6087 | goto failure; |
6088 | } | |
6089 | } | |
6090 | /* No qualifier. */ | |
6091 | break; | |
6092 | ||
98907a70 RS |
6093 | case AARCH64_OPND_SVE_ADDR_RI_S4xVL: |
6094 | case AARCH64_OPND_SVE_ADDR_RI_S4x2xVL: | |
6095 | case AARCH64_OPND_SVE_ADDR_RI_S4x3xVL: | |
6096 | case AARCH64_OPND_SVE_ADDR_RI_S4x4xVL: | |
6097 | case AARCH64_OPND_SVE_ADDR_RI_S6xVL: | |
6098 | case AARCH64_OPND_SVE_ADDR_RI_S9xVL: | |
4df068de RS |
6099 | case AARCH64_OPND_SVE_ADDR_RI_U6: |
6100 | case AARCH64_OPND_SVE_ADDR_RI_U6x2: | |
6101 | case AARCH64_OPND_SVE_ADDR_RI_U6x4: | |
6102 | case AARCH64_OPND_SVE_ADDR_RI_U6x8: | |
98907a70 RS |
6103 | /* [X<n>{, #imm, MUL VL}] |
6104 | [X<n>{, #imm}] | |
4df068de RS |
6105 | but recognizing SVE registers. */ |
6106 | po_misc_or_fail (parse_sve_address (&str, info, &base_qualifier, | |
6107 | &offset_qualifier)); | |
6108 | if (base_qualifier != AARCH64_OPND_QLF_X) | |
6109 | { | |
6110 | set_syntax_error (_("invalid addressing mode")); | |
6111 | goto failure; | |
6112 | } | |
6113 | sve_regimm: | |
6114 | if (info->addr.pcrel || info->addr.offset.is_reg | |
6115 | || !info->addr.preind || info->addr.writeback) | |
6116 | { | |
6117 | set_syntax_error (_("invalid addressing mode")); | |
6118 | goto failure; | |
6119 | } | |
6120 | if (inst.reloc.type != BFD_RELOC_UNUSED | |
6121 | || inst.reloc.exp.X_op != O_constant) | |
6122 | { | |
6123 | /* Make sure this has priority over | |
6124 | "invalid addressing mode". */ | |
6125 | set_fatal_syntax_error (_("constant offset required")); | |
6126 | goto failure; | |
6127 | } | |
6128 | info->addr.offset.imm = inst.reloc.exp.X_add_number; | |
6129 | break; | |
6130 | ||
6131 | case AARCH64_OPND_SVE_ADDR_RR: | |
6132 | case AARCH64_OPND_SVE_ADDR_RR_LSL1: | |
6133 | case AARCH64_OPND_SVE_ADDR_RR_LSL2: | |
6134 | case AARCH64_OPND_SVE_ADDR_RR_LSL3: | |
6135 | case AARCH64_OPND_SVE_ADDR_RX: | |
6136 | case AARCH64_OPND_SVE_ADDR_RX_LSL1: | |
6137 | case AARCH64_OPND_SVE_ADDR_RX_LSL2: | |
6138 | case AARCH64_OPND_SVE_ADDR_RX_LSL3: | |
6139 | /* [<Xn|SP>, <R><m>{, lsl #<amount>}] | |
6140 | but recognizing SVE registers. */ | |
6141 | po_misc_or_fail (parse_sve_address (&str, info, &base_qualifier, | |
6142 | &offset_qualifier)); | |
6143 | if (base_qualifier != AARCH64_OPND_QLF_X | |
6144 | || offset_qualifier != AARCH64_OPND_QLF_X) | |
6145 | { | |
6146 | set_syntax_error (_("invalid addressing mode")); | |
6147 | goto failure; | |
6148 | } | |
6149 | goto regoff_addr; | |
6150 | ||
6151 | case AARCH64_OPND_SVE_ADDR_RZ: | |
6152 | case AARCH64_OPND_SVE_ADDR_RZ_LSL1: | |
6153 | case AARCH64_OPND_SVE_ADDR_RZ_LSL2: | |
6154 | case AARCH64_OPND_SVE_ADDR_RZ_LSL3: | |
6155 | case AARCH64_OPND_SVE_ADDR_RZ_XTW_14: | |
6156 | case AARCH64_OPND_SVE_ADDR_RZ_XTW_22: | |
6157 | case AARCH64_OPND_SVE_ADDR_RZ_XTW1_14: | |
6158 | case AARCH64_OPND_SVE_ADDR_RZ_XTW1_22: | |
6159 | case AARCH64_OPND_SVE_ADDR_RZ_XTW2_14: | |
6160 | case AARCH64_OPND_SVE_ADDR_RZ_XTW2_22: | |
6161 | case AARCH64_OPND_SVE_ADDR_RZ_XTW3_14: | |
6162 | case AARCH64_OPND_SVE_ADDR_RZ_XTW3_22: | |
6163 | /* [<Xn|SP>, Z<m>.D{, LSL #<amount>}] | |
6164 | [<Xn|SP>, Z<m>.<T>, <extend> {#<amount>}] */ | |
6165 | po_misc_or_fail (parse_sve_address (&str, info, &base_qualifier, | |
6166 | &offset_qualifier)); | |
6167 | if (base_qualifier != AARCH64_OPND_QLF_X | |
6168 | || (offset_qualifier != AARCH64_OPND_QLF_S_S | |
6169 | && offset_qualifier != AARCH64_OPND_QLF_S_D)) | |
6170 | { | |
6171 | set_syntax_error (_("invalid addressing mode")); | |
6172 | goto failure; | |
6173 | } | |
6174 | info->qualifier = offset_qualifier; | |
6175 | goto regoff_addr; | |
6176 | ||
6177 | case AARCH64_OPND_SVE_ADDR_ZI_U5: | |
6178 | case AARCH64_OPND_SVE_ADDR_ZI_U5x2: | |
6179 | case AARCH64_OPND_SVE_ADDR_ZI_U5x4: | |
6180 | case AARCH64_OPND_SVE_ADDR_ZI_U5x8: | |
6181 | /* [Z<n>.<T>{, #imm}] */ | |
6182 | po_misc_or_fail (parse_sve_address (&str, info, &base_qualifier, | |
6183 | &offset_qualifier)); | |
6184 | if (base_qualifier != AARCH64_OPND_QLF_S_S | |
6185 | && base_qualifier != AARCH64_OPND_QLF_S_D) | |
6186 | { | |
6187 | set_syntax_error (_("invalid addressing mode")); | |
6188 | goto failure; | |
6189 | } | |
6190 | info->qualifier = base_qualifier; | |
6191 | goto sve_regimm; | |
6192 | ||
6193 | case AARCH64_OPND_SVE_ADDR_ZZ_LSL: | |
6194 | case AARCH64_OPND_SVE_ADDR_ZZ_SXTW: | |
6195 | case AARCH64_OPND_SVE_ADDR_ZZ_UXTW: | |
6196 | /* [Z<n>.<T>, Z<m>.<T>{, LSL #<amount>}] | |
6197 | [Z<n>.D, Z<m>.D, <extend> {#<amount>}] | |
6198 | ||
6199 | We don't reject: | |
6200 | ||
6201 | [Z<n>.S, Z<m>.S, <extend> {#<amount>}] | |
6202 | ||
6203 | here since we get better error messages by leaving it to | |
6204 | the qualifier checking routines. */ | |
6205 | po_misc_or_fail (parse_sve_address (&str, info, &base_qualifier, | |
6206 | &offset_qualifier)); | |
6207 | if ((base_qualifier != AARCH64_OPND_QLF_S_S | |
6208 | && base_qualifier != AARCH64_OPND_QLF_S_D) | |
6209 | || offset_qualifier != base_qualifier) | |
6210 | { | |
6211 | set_syntax_error (_("invalid addressing mode")); | |
6212 | goto failure; | |
6213 | } | |
6214 | info->qualifier = base_qualifier; | |
6215 | goto regoff_addr; | |
6216 | ||
a06ea964 | 6217 | case AARCH64_OPND_SYSREG: |
72ca8fad | 6218 | if ((val = parse_sys_reg (&str, aarch64_sys_regs_hsh, 1, 0)) |
a203d9b7 | 6219 | == PARSE_FAIL) |
a06ea964 | 6220 | { |
a203d9b7 YZ |
6221 | set_syntax_error (_("unknown or missing system register name")); |
6222 | goto failure; | |
a06ea964 | 6223 | } |
a203d9b7 | 6224 | inst.base.operands[i].sysreg = val; |
a06ea964 NC |
6225 | break; |
6226 | ||
6227 | case AARCH64_OPND_PSTATEFIELD: | |
72ca8fad | 6228 | if ((val = parse_sys_reg (&str, aarch64_pstatefield_hsh, 0, 1)) |
a3251895 | 6229 | == PARSE_FAIL) |
a06ea964 NC |
6230 | { |
6231 | set_syntax_error (_("unknown or missing PSTATE field name")); | |
6232 | goto failure; | |
6233 | } | |
6234 | inst.base.operands[i].pstatefield = val; | |
6235 | break; | |
6236 | ||
6237 | case AARCH64_OPND_SYSREG_IC: | |
6238 | inst.base.operands[i].sysins_op = | |
6239 | parse_sys_ins_reg (&str, aarch64_sys_regs_ic_hsh); | |
6240 | goto sys_reg_ins; | |
6241 | case AARCH64_OPND_SYSREG_DC: | |
6242 | inst.base.operands[i].sysins_op = | |
6243 | parse_sys_ins_reg (&str, aarch64_sys_regs_dc_hsh); | |
6244 | goto sys_reg_ins; | |
6245 | case AARCH64_OPND_SYSREG_AT: | |
6246 | inst.base.operands[i].sysins_op = | |
6247 | parse_sys_ins_reg (&str, aarch64_sys_regs_at_hsh); | |
6248 | goto sys_reg_ins; | |
6249 | case AARCH64_OPND_SYSREG_TLBI: | |
6250 | inst.base.operands[i].sysins_op = | |
6251 | parse_sys_ins_reg (&str, aarch64_sys_regs_tlbi_hsh); | |
6252 | sys_reg_ins: | |
6253 | if (inst.base.operands[i].sysins_op == NULL) | |
6254 | { | |
6255 | set_fatal_syntax_error ( _("unknown or missing operation name")); | |
6256 | goto failure; | |
6257 | } | |
6258 | break; | |
6259 | ||
6260 | case AARCH64_OPND_BARRIER: | |
6261 | case AARCH64_OPND_BARRIER_ISB: | |
6262 | val = parse_barrier (&str); | |
6263 | if (val != PARSE_FAIL | |
6264 | && operands[i] == AARCH64_OPND_BARRIER_ISB && val != 0xf) | |
6265 | { | |
6266 | /* ISB only accepts options name 'sy'. */ | |
6267 | set_syntax_error | |
6268 | (_("the specified option is not accepted in ISB")); | |
6269 | /* Turn off backtrack as this optional operand is present. */ | |
6270 | backtrack_pos = 0; | |
6271 | goto failure; | |
6272 | } | |
6273 | /* This is an extension to accept a 0..15 immediate. */ | |
6274 | if (val == PARSE_FAIL) | |
6275 | po_imm_or_fail (0, 15); | |
6276 | info->barrier = aarch64_barrier_options + val; | |
6277 | break; | |
6278 | ||
6279 | case AARCH64_OPND_PRFOP: | |
6280 | val = parse_pldop (&str); | |
6281 | /* This is an extension to accept a 0..31 immediate. */ | |
6282 | if (val == PARSE_FAIL) | |
6283 | po_imm_or_fail (0, 31); | |
6284 | inst.base.operands[i].prfop = aarch64_prfops + val; | |
6285 | break; | |
6286 | ||
1e6f4800 MW |
6287 | case AARCH64_OPND_BARRIER_PSB: |
6288 | val = parse_barrier_psb (&str, &(info->hint_option)); | |
6289 | if (val == PARSE_FAIL) | |
6290 | goto failure; | |
6291 | break; | |
6292 | ||
a06ea964 NC |
6293 | default: |
6294 | as_fatal (_("unhandled operand code %d"), operands[i]); | |
6295 | } | |
6296 | ||
6297 | /* If we get here, this operand was successfully parsed. */ | |
6298 | inst.base.operands[i].present = 1; | |
6299 | continue; | |
6300 | ||
6301 | failure: | |
6302 | /* The parse routine should already have set the error, but in case | |
6303 | not, set a default one here. */ | |
6304 | if (! error_p ()) | |
6305 | set_default_error (); | |
6306 | ||
6307 | if (! backtrack_pos) | |
6308 | goto parse_operands_return; | |
6309 | ||
f4c51f60 JW |
6310 | { |
6311 | /* We reach here because this operand is marked as optional, and | |
6312 | either no operand was supplied or the operand was supplied but it | |
6313 | was syntactically incorrect. In the latter case we report an | |
6314 | error. In the former case we perform a few more checks before | |
6315 | dropping through to the code to insert the default operand. */ | |
6316 | ||
6317 | char *tmp = backtrack_pos; | |
6318 | char endchar = END_OF_INSN; | |
6319 | ||
6320 | if (i != (aarch64_num_of_operands (opcode) - 1)) | |
6321 | endchar = ','; | |
6322 | skip_past_char (&tmp, ','); | |
6323 | ||
6324 | if (*tmp != endchar) | |
6325 | /* The user has supplied an operand in the wrong format. */ | |
6326 | goto parse_operands_return; | |
6327 | ||
6328 | /* Make sure there is not a comma before the optional operand. | |
6329 | For example the fifth operand of 'sys' is optional: | |
6330 | ||
6331 | sys #0,c0,c0,#0, <--- wrong | |
6332 | sys #0,c0,c0,#0 <--- correct. */ | |
6333 | if (comma_skipped_p && i && endchar == END_OF_INSN) | |
6334 | { | |
6335 | set_fatal_syntax_error | |
6336 | (_("unexpected comma before the omitted optional operand")); | |
6337 | goto parse_operands_return; | |
6338 | } | |
6339 | } | |
6340 | ||
a06ea964 NC |
6341 | /* Reaching here means we are dealing with an optional operand that is |
6342 | omitted from the assembly line. */ | |
6343 | gas_assert (optional_operand_p (opcode, i)); | |
6344 | info->present = 0; | |
6345 | process_omitted_operand (operands[i], opcode, i, info); | |
6346 | ||
6347 | /* Try again, skipping the optional operand at backtrack_pos. */ | |
6348 | str = backtrack_pos; | |
6349 | backtrack_pos = 0; | |
6350 | ||
a06ea964 NC |
6351 | /* Clear any error record after the omitted optional operand has been |
6352 | successfully handled. */ | |
6353 | clear_error (); | |
6354 | } | |
6355 | ||
6356 | /* Check if we have parsed all the operands. */ | |
6357 | if (*str != '\0' && ! error_p ()) | |
6358 | { | |
6359 | /* Set I to the index of the last present operand; this is | |
6360 | for the purpose of diagnostics. */ | |
6361 | for (i -= 1; i >= 0 && !inst.base.operands[i].present; --i) | |
6362 | ; | |
6363 | set_fatal_syntax_error | |
6364 | (_("unexpected characters following instruction")); | |
6365 | } | |
6366 | ||
6367 | parse_operands_return: | |
6368 | ||
6369 | if (error_p ()) | |
6370 | { | |
6371 | DEBUG_TRACE ("parsing FAIL: %s - %s", | |
6372 | operand_mismatch_kind_names[get_error_kind ()], | |
6373 | get_error_message ()); | |
6374 | /* Record the operand error properly; this is useful when there | |
6375 | are multiple instruction templates for a mnemonic name, so that | |
6376 | later on, we can select the error that most closely describes | |
6377 | the problem. */ | |
6378 | record_operand_error (opcode, i, get_error_kind (), | |
6379 | get_error_message ()); | |
6380 | return FALSE; | |
6381 | } | |
6382 | else | |
6383 | { | |
6384 | DEBUG_TRACE ("parsing SUCCESS"); | |
6385 | return TRUE; | |
6386 | } | |
6387 | } | |
6388 | ||
6389 | /* It does some fix-up to provide some programmer friendly feature while | |
6390 | keeping the libopcodes happy, i.e. libopcodes only accepts | |
6391 | the preferred architectural syntax. | |
6392 | Return FALSE if there is any failure; otherwise return TRUE. */ | |
6393 | ||
6394 | static bfd_boolean | |
6395 | programmer_friendly_fixup (aarch64_instruction *instr) | |
6396 | { | |
6397 | aarch64_inst *base = &instr->base; | |
6398 | const aarch64_opcode *opcode = base->opcode; | |
6399 | enum aarch64_op op = opcode->op; | |
6400 | aarch64_opnd_info *operands = base->operands; | |
6401 | ||
6402 | DEBUG_TRACE ("enter"); | |
6403 | ||
6404 | switch (opcode->iclass) | |
6405 | { | |
6406 | case testbranch: | |
6407 | /* TBNZ Xn|Wn, #uimm6, label | |
6408 | Test and Branch Not Zero: conditionally jumps to label if bit number | |
6409 | uimm6 in register Xn is not zero. The bit number implies the width of | |
6410 | the register, which may be written and should be disassembled as Wn if | |
6411 | uimm is less than 32. */ | |
6412 | if (operands[0].qualifier == AARCH64_OPND_QLF_W) | |
6413 | { | |
6414 | if (operands[1].imm.value >= 32) | |
6415 | { | |
6416 | record_operand_out_of_range_error (opcode, 1, _("immediate value"), | |
6417 | 0, 31); | |
6418 | return FALSE; | |
6419 | } | |
6420 | operands[0].qualifier = AARCH64_OPND_QLF_X; | |
6421 | } | |
6422 | break; | |
6423 | case loadlit: | |
6424 | /* LDR Wt, label | =value | |
6425 | As a convenience assemblers will typically permit the notation | |
6426 | "=value" in conjunction with the pc-relative literal load instructions | |
6427 | to automatically place an immediate value or symbolic address in a | |
6428 | nearby literal pool and generate a hidden label which references it. | |
6429 | ISREG has been set to 0 in the case of =value. */ | |
6430 | if (instr->gen_lit_pool | |
6431 | && (op == OP_LDR_LIT || op == OP_LDRV_LIT || op == OP_LDRSW_LIT)) | |
6432 | { | |
6433 | int size = aarch64_get_qualifier_esize (operands[0].qualifier); | |
6434 | if (op == OP_LDRSW_LIT) | |
6435 | size = 4; | |
6436 | if (instr->reloc.exp.X_op != O_constant | |
67a32447 | 6437 | && instr->reloc.exp.X_op != O_big |
a06ea964 NC |
6438 | && instr->reloc.exp.X_op != O_symbol) |
6439 | { | |
6440 | record_operand_error (opcode, 1, | |
6441 | AARCH64_OPDE_FATAL_SYNTAX_ERROR, | |
6442 | _("constant expression expected")); | |
6443 | return FALSE; | |
6444 | } | |
6445 | if (! add_to_lit_pool (&instr->reloc.exp, size)) | |
6446 | { | |
6447 | record_operand_error (opcode, 1, | |
6448 | AARCH64_OPDE_OTHER_ERROR, | |
6449 | _("literal pool insertion failed")); | |
6450 | return FALSE; | |
6451 | } | |
6452 | } | |
6453 | break; | |
a06ea964 NC |
6454 | case log_shift: |
6455 | case bitfield: | |
6456 | /* UXT[BHW] Wd, Wn | |
6457 | Unsigned Extend Byte|Halfword|Word: UXT[BH] is architectural alias | |
6458 | for UBFM Wd,Wn,#0,#7|15, while UXTW is pseudo instruction which is | |
6459 | encoded using ORR Wd, WZR, Wn (MOV Wd,Wn). | |
6460 | A programmer-friendly assembler should accept a destination Xd in | |
6461 | place of Wd, however that is not the preferred form for disassembly. | |
6462 | */ | |
6463 | if ((op == OP_UXTB || op == OP_UXTH || op == OP_UXTW) | |
6464 | && operands[1].qualifier == AARCH64_OPND_QLF_W | |
6465 | && operands[0].qualifier == AARCH64_OPND_QLF_X) | |
6466 | operands[0].qualifier = AARCH64_OPND_QLF_W; | |
6467 | break; | |
6468 | ||
6469 | case addsub_ext: | |
6470 | { | |
6471 | /* In the 64-bit form, the final register operand is written as Wm | |
6472 | for all but the (possibly omitted) UXTX/LSL and SXTX | |
6473 | operators. | |
6474 | As a programmer-friendly assembler, we accept e.g. | |
6475 | ADDS <Xd>, <Xn|SP>, <Xm>{, UXTB {#<amount>}} and change it to | |
6476 | ADDS <Xd>, <Xn|SP>, <Wm>{, UXTB {#<amount>}}. */ | |
6477 | int idx = aarch64_operand_index (opcode->operands, | |
6478 | AARCH64_OPND_Rm_EXT); | |
6479 | gas_assert (idx == 1 || idx == 2); | |
6480 | if (operands[0].qualifier == AARCH64_OPND_QLF_X | |
6481 | && operands[idx].qualifier == AARCH64_OPND_QLF_X | |
6482 | && operands[idx].shifter.kind != AARCH64_MOD_LSL | |
6483 | && operands[idx].shifter.kind != AARCH64_MOD_UXTX | |
6484 | && operands[idx].shifter.kind != AARCH64_MOD_SXTX) | |
6485 | operands[idx].qualifier = AARCH64_OPND_QLF_W; | |
6486 | } | |
6487 | break; | |
6488 | ||
6489 | default: | |
6490 | break; | |
6491 | } | |
6492 | ||
6493 | DEBUG_TRACE ("exit with SUCCESS"); | |
6494 | return TRUE; | |
6495 | } | |
6496 | ||
5c47e525 | 6497 | /* Check for loads and stores that will cause unpredictable behavior. */ |
54a28c4c JW |
6498 | |
6499 | static void | |
6500 | warn_unpredictable_ldst (aarch64_instruction *instr, char *str) | |
6501 | { | |
6502 | aarch64_inst *base = &instr->base; | |
6503 | const aarch64_opcode *opcode = base->opcode; | |
6504 | const aarch64_opnd_info *opnds = base->operands; | |
6505 | switch (opcode->iclass) | |
6506 | { | |
6507 | case ldst_pos: | |
6508 | case ldst_imm9: | |
3f06e550 | 6509 | case ldst_imm10: |
54a28c4c JW |
6510 | case ldst_unscaled: |
6511 | case ldst_unpriv: | |
5c47e525 RE |
6512 | /* Loading/storing the base register is unpredictable if writeback. */ |
6513 | if ((aarch64_get_operand_class (opnds[0].type) | |
6514 | == AARCH64_OPND_CLASS_INT_REG) | |
6515 | && opnds[0].reg.regno == opnds[1].addr.base_regno | |
4bf8c6e8 | 6516 | && opnds[1].addr.base_regno != REG_SP |
54a28c4c | 6517 | && opnds[1].addr.writeback) |
5c47e525 | 6518 | as_warn (_("unpredictable transfer with writeback -- `%s'"), str); |
54a28c4c JW |
6519 | break; |
6520 | case ldstpair_off: | |
6521 | case ldstnapair_offs: | |
6522 | case ldstpair_indexed: | |
5c47e525 RE |
6523 | /* Loading/storing the base register is unpredictable if writeback. */ |
6524 | if ((aarch64_get_operand_class (opnds[0].type) | |
6525 | == AARCH64_OPND_CLASS_INT_REG) | |
6526 | && (opnds[0].reg.regno == opnds[2].addr.base_regno | |
6527 | || opnds[1].reg.regno == opnds[2].addr.base_regno) | |
4bf8c6e8 | 6528 | && opnds[2].addr.base_regno != REG_SP |
54a28c4c | 6529 | && opnds[2].addr.writeback) |
5c47e525 RE |
6530 | as_warn (_("unpredictable transfer with writeback -- `%s'"), str); |
6531 | /* Load operations must load different registers. */ | |
54a28c4c JW |
6532 | if ((opcode->opcode & (1 << 22)) |
6533 | && opnds[0].reg.regno == opnds[1].reg.regno) | |
6534 | as_warn (_("unpredictable load of register pair -- `%s'"), str); | |
6535 | break; | |
6536 | default: | |
6537 | break; | |
6538 | } | |
6539 | } | |
6540 | ||
a06ea964 NC |
6541 | /* A wrapper function to interface with libopcodes on encoding and |
6542 | record the error message if there is any. | |
6543 | ||
6544 | Return TRUE on success; otherwise return FALSE. */ | |
6545 | ||
6546 | static bfd_boolean | |
6547 | do_encode (const aarch64_opcode *opcode, aarch64_inst *instr, | |
6548 | aarch64_insn *code) | |
6549 | { | |
6550 | aarch64_operand_error error_info; | |
6551 | error_info.kind = AARCH64_OPDE_NIL; | |
6552 | if (aarch64_opcode_encode (opcode, instr, code, NULL, &error_info)) | |
6553 | return TRUE; | |
6554 | else | |
6555 | { | |
6556 | gas_assert (error_info.kind != AARCH64_OPDE_NIL); | |
6557 | record_operand_error_info (opcode, &error_info); | |
6558 | return FALSE; | |
6559 | } | |
6560 | } | |
6561 | ||
6562 | #ifdef DEBUG_AARCH64 | |
6563 | static inline void | |
6564 | dump_opcode_operands (const aarch64_opcode *opcode) | |
6565 | { | |
6566 | int i = 0; | |
6567 | while (opcode->operands[i] != AARCH64_OPND_NIL) | |
6568 | { | |
6569 | aarch64_verbose ("\t\t opnd%d: %s", i, | |
6570 | aarch64_get_operand_name (opcode->operands[i])[0] != '\0' | |
6571 | ? aarch64_get_operand_name (opcode->operands[i]) | |
6572 | : aarch64_get_operand_desc (opcode->operands[i])); | |
6573 | ++i; | |
6574 | } | |
6575 | } | |
6576 | #endif /* DEBUG_AARCH64 */ | |
6577 | ||
6578 | /* This is the guts of the machine-dependent assembler. STR points to a | |
6579 | machine dependent instruction. This function is supposed to emit | |
6580 | the frags/bytes it assembles to. */ | |
6581 | ||
6582 | void | |
6583 | md_assemble (char *str) | |
6584 | { | |
6585 | char *p = str; | |
6586 | templates *template; | |
6587 | aarch64_opcode *opcode; | |
6588 | aarch64_inst *inst_base; | |
6589 | unsigned saved_cond; | |
6590 | ||
6591 | /* Align the previous label if needed. */ | |
6592 | if (last_label_seen != NULL) | |
6593 | { | |
6594 | symbol_set_frag (last_label_seen, frag_now); | |
6595 | S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ()); | |
6596 | S_SET_SEGMENT (last_label_seen, now_seg); | |
6597 | } | |
6598 | ||
6599 | inst.reloc.type = BFD_RELOC_UNUSED; | |
6600 | ||
6601 | DEBUG_TRACE ("\n\n"); | |
6602 | DEBUG_TRACE ("=============================="); | |
6603 | DEBUG_TRACE ("Enter md_assemble with %s", str); | |
6604 | ||
6605 | template = opcode_lookup (&p); | |
6606 | if (!template) | |
6607 | { | |
6608 | /* It wasn't an instruction, but it might be a register alias of | |
6609 | the form alias .req reg directive. */ | |
6610 | if (!create_register_alias (str, p)) | |
6611 | as_bad (_("unknown mnemonic `%s' -- `%s'"), get_mnemonic_name (str), | |
6612 | str); | |
6613 | return; | |
6614 | } | |
6615 | ||
6616 | skip_whitespace (p); | |
6617 | if (*p == ',') | |
6618 | { | |
6619 | as_bad (_("unexpected comma after the mnemonic name `%s' -- `%s'"), | |
6620 | get_mnemonic_name (str), str); | |
6621 | return; | |
6622 | } | |
6623 | ||
6624 | init_operand_error_report (); | |
6625 | ||
eb9d6cc9 RL |
6626 | /* Sections are assumed to start aligned. In executable section, there is no |
6627 | MAP_DATA symbol pending. So we only align the address during | |
6628 | MAP_DATA --> MAP_INSN transition. | |
6629 | For other sections, this is not guaranteed. */ | |
6630 | enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate; | |
6631 | if (!need_pass_2 && subseg_text_p (now_seg) && mapstate == MAP_DATA) | |
6632 | frag_align_code (2, 0); | |
6633 | ||
a06ea964 NC |
6634 | saved_cond = inst.cond; |
6635 | reset_aarch64_instruction (&inst); | |
6636 | inst.cond = saved_cond; | |
6637 | ||
6638 | /* Iterate through all opcode entries with the same mnemonic name. */ | |
6639 | do | |
6640 | { | |
6641 | opcode = template->opcode; | |
6642 | ||
6643 | DEBUG_TRACE ("opcode %s found", opcode->name); | |
6644 | #ifdef DEBUG_AARCH64 | |
6645 | if (debug_dump) | |
6646 | dump_opcode_operands (opcode); | |
6647 | #endif /* DEBUG_AARCH64 */ | |
6648 | ||
a06ea964 NC |
6649 | mapping_state (MAP_INSN); |
6650 | ||
6651 | inst_base = &inst.base; | |
6652 | inst_base->opcode = opcode; | |
6653 | ||
6654 | /* Truly conditionally executed instructions, e.g. b.cond. */ | |
6655 | if (opcode->flags & F_COND) | |
6656 | { | |
6657 | gas_assert (inst.cond != COND_ALWAYS); | |
6658 | inst_base->cond = get_cond_from_value (inst.cond); | |
6659 | DEBUG_TRACE ("condition found %s", inst_base->cond->names[0]); | |
6660 | } | |
6661 | else if (inst.cond != COND_ALWAYS) | |
6662 | { | |
6663 | /* It shouldn't arrive here, where the assembly looks like a | |
6664 | conditional instruction but the found opcode is unconditional. */ | |
6665 | gas_assert (0); | |
6666 | continue; | |
6667 | } | |
6668 | ||
6669 | if (parse_operands (p, opcode) | |
6670 | && programmer_friendly_fixup (&inst) | |
6671 | && do_encode (inst_base->opcode, &inst.base, &inst_base->value)) | |
6672 | { | |
3f06bfce YZ |
6673 | /* Check that this instruction is supported for this CPU. */ |
6674 | if (!opcode->avariant | |
93d8990c | 6675 | || !AARCH64_CPU_HAS_ALL_FEATURES (cpu_variant, *opcode->avariant)) |
3f06bfce YZ |
6676 | { |
6677 | as_bad (_("selected processor does not support `%s'"), str); | |
6678 | return; | |
6679 | } | |
6680 | ||
54a28c4c JW |
6681 | warn_unpredictable_ldst (&inst, str); |
6682 | ||
a06ea964 NC |
6683 | if (inst.reloc.type == BFD_RELOC_UNUSED |
6684 | || !inst.reloc.need_libopcodes_p) | |
6685 | output_inst (NULL); | |
6686 | else | |
6687 | { | |
6688 | /* If there is relocation generated for the instruction, | |
6689 | store the instruction information for the future fix-up. */ | |
6690 | struct aarch64_inst *copy; | |
6691 | gas_assert (inst.reloc.type != BFD_RELOC_UNUSED); | |
325801bd | 6692 | copy = XNEW (struct aarch64_inst); |
a06ea964 NC |
6693 | memcpy (copy, &inst.base, sizeof (struct aarch64_inst)); |
6694 | output_inst (copy); | |
6695 | } | |
6696 | return; | |
6697 | } | |
6698 | ||
6699 | template = template->next; | |
6700 | if (template != NULL) | |
6701 | { | |
6702 | reset_aarch64_instruction (&inst); | |
6703 | inst.cond = saved_cond; | |
6704 | } | |
6705 | } | |
6706 | while (template != NULL); | |
6707 | ||
6708 | /* Issue the error messages if any. */ | |
6709 | output_operand_error_report (str); | |
6710 | } | |
6711 | ||
6712 | /* Various frobbings of labels and their addresses. */ | |
6713 | ||
6714 | void | |
6715 | aarch64_start_line_hook (void) | |
6716 | { | |
6717 | last_label_seen = NULL; | |
6718 | } | |
6719 | ||
6720 | void | |
6721 | aarch64_frob_label (symbolS * sym) | |
6722 | { | |
6723 | last_label_seen = sym; | |
6724 | ||
6725 | dwarf2_emit_label (sym); | |
6726 | } | |
6727 | ||
6728 | int | |
6729 | aarch64_data_in_code (void) | |
6730 | { | |
6731 | if (!strncmp (input_line_pointer + 1, "data:", 5)) | |
6732 | { | |
6733 | *input_line_pointer = '/'; | |
6734 | input_line_pointer += 5; | |
6735 | *input_line_pointer = 0; | |
6736 | return 1; | |
6737 | } | |
6738 | ||
6739 | return 0; | |
6740 | } | |
6741 | ||
6742 | char * | |
6743 | aarch64_canonicalize_symbol_name (char *name) | |
6744 | { | |
6745 | int len; | |
6746 | ||
6747 | if ((len = strlen (name)) > 5 && streq (name + len - 5, "/data")) | |
6748 | *(name + len - 5) = 0; | |
6749 | ||
6750 | return name; | |
6751 | } | |
6752 | \f | |
6753 | /* Table of all register names defined by default. The user can | |
6754 | define additional names with .req. Note that all register names | |
6755 | should appear in both upper and lowercase variants. Some registers | |
6756 | also have mixed-case names. */ | |
6757 | ||
6758 | #define REGDEF(s,n,t) { #s, n, REG_TYPE_##t, TRUE } | |
6759 | #define REGNUM(p,n,t) REGDEF(p##n, n, t) | |
f11ad6bc | 6760 | #define REGSET16(p,t) \ |
a06ea964 NC |
6761 | REGNUM(p, 0,t), REGNUM(p, 1,t), REGNUM(p, 2,t), REGNUM(p, 3,t), \ |
6762 | REGNUM(p, 4,t), REGNUM(p, 5,t), REGNUM(p, 6,t), REGNUM(p, 7,t), \ | |
6763 | REGNUM(p, 8,t), REGNUM(p, 9,t), REGNUM(p,10,t), REGNUM(p,11,t), \ | |
f11ad6bc RS |
6764 | REGNUM(p,12,t), REGNUM(p,13,t), REGNUM(p,14,t), REGNUM(p,15,t) |
6765 | #define REGSET31(p,t) \ | |
6766 | REGSET16(p, t), \ | |
a06ea964 NC |
6767 | REGNUM(p,16,t), REGNUM(p,17,t), REGNUM(p,18,t), REGNUM(p,19,t), \ |
6768 | REGNUM(p,20,t), REGNUM(p,21,t), REGNUM(p,22,t), REGNUM(p,23,t), \ | |
6769 | REGNUM(p,24,t), REGNUM(p,25,t), REGNUM(p,26,t), REGNUM(p,27,t), \ | |
6770 | REGNUM(p,28,t), REGNUM(p,29,t), REGNUM(p,30,t) | |
6771 | #define REGSET(p,t) \ | |
6772 | REGSET31(p,t), REGNUM(p,31,t) | |
6773 | ||
6774 | /* These go into aarch64_reg_hsh hash-table. */ | |
6775 | static const reg_entry reg_names[] = { | |
6776 | /* Integer registers. */ | |
6777 | REGSET31 (x, R_64), REGSET31 (X, R_64), | |
6778 | REGSET31 (w, R_32), REGSET31 (W, R_32), | |
6779 | ||
6780 | REGDEF (wsp, 31, SP_32), REGDEF (WSP, 31, SP_32), | |
6781 | REGDEF (sp, 31, SP_64), REGDEF (SP, 31, SP_64), | |
6782 | ||
6783 | REGDEF (wzr, 31, Z_32), REGDEF (WZR, 31, Z_32), | |
6784 | REGDEF (xzr, 31, Z_64), REGDEF (XZR, 31, Z_64), | |
6785 | ||
a06ea964 NC |
6786 | /* Floating-point single precision registers. */ |
6787 | REGSET (s, FP_S), REGSET (S, FP_S), | |
6788 | ||
6789 | /* Floating-point double precision registers. */ | |
6790 | REGSET (d, FP_D), REGSET (D, FP_D), | |
6791 | ||
6792 | /* Floating-point half precision registers. */ | |
6793 | REGSET (h, FP_H), REGSET (H, FP_H), | |
6794 | ||
6795 | /* Floating-point byte precision registers. */ | |
6796 | REGSET (b, FP_B), REGSET (B, FP_B), | |
6797 | ||
6798 | /* Floating-point quad precision registers. */ | |
6799 | REGSET (q, FP_Q), REGSET (Q, FP_Q), | |
6800 | ||
6801 | /* FP/SIMD registers. */ | |
6802 | REGSET (v, VN), REGSET (V, VN), | |
f11ad6bc RS |
6803 | |
6804 | /* SVE vector registers. */ | |
6805 | REGSET (z, ZN), REGSET (Z, ZN), | |
6806 | ||
6807 | /* SVE predicate registers. */ | |
6808 | REGSET16 (p, PN), REGSET16 (P, PN) | |
a06ea964 NC |
6809 | }; |
6810 | ||
6811 | #undef REGDEF | |
6812 | #undef REGNUM | |
f11ad6bc RS |
6813 | #undef REGSET16 |
6814 | #undef REGSET31 | |
a06ea964 NC |
6815 | #undef REGSET |
6816 | ||
6817 | #define N 1 | |
6818 | #define n 0 | |
6819 | #define Z 1 | |
6820 | #define z 0 | |
6821 | #define C 1 | |
6822 | #define c 0 | |
6823 | #define V 1 | |
6824 | #define v 0 | |
6825 | #define B(a,b,c,d) (((a) << 3) | ((b) << 2) | ((c) << 1) | (d)) | |
6826 | static const asm_nzcv nzcv_names[] = { | |
6827 | {"nzcv", B (n, z, c, v)}, | |
6828 | {"nzcV", B (n, z, c, V)}, | |
6829 | {"nzCv", B (n, z, C, v)}, | |
6830 | {"nzCV", B (n, z, C, V)}, | |
6831 | {"nZcv", B (n, Z, c, v)}, | |
6832 | {"nZcV", B (n, Z, c, V)}, | |
6833 | {"nZCv", B (n, Z, C, v)}, | |
6834 | {"nZCV", B (n, Z, C, V)}, | |
6835 | {"Nzcv", B (N, z, c, v)}, | |
6836 | {"NzcV", B (N, z, c, V)}, | |
6837 | {"NzCv", B (N, z, C, v)}, | |
6838 | {"NzCV", B (N, z, C, V)}, | |
6839 | {"NZcv", B (N, Z, c, v)}, | |
6840 | {"NZcV", B (N, Z, c, V)}, | |
6841 | {"NZCv", B (N, Z, C, v)}, | |
6842 | {"NZCV", B (N, Z, C, V)} | |
6843 | }; | |
6844 | ||
6845 | #undef N | |
6846 | #undef n | |
6847 | #undef Z | |
6848 | #undef z | |
6849 | #undef C | |
6850 | #undef c | |
6851 | #undef V | |
6852 | #undef v | |
6853 | #undef B | |
6854 | \f | |
6855 | /* MD interface: bits in the object file. */ | |
6856 | ||
6857 | /* Turn an integer of n bytes (in val) into a stream of bytes appropriate | |
6858 | for use in the a.out file, and stores them in the array pointed to by buf. | |
6859 | This knows about the endian-ness of the target machine and does | |
6860 | THE RIGHT THING, whatever it is. Possible values for n are 1 (byte) | |
6861 | 2 (short) and 4 (long) Floating numbers are put out as a series of | |
6862 | LITTLENUMS (shorts, here at least). */ | |
6863 | ||
6864 | void | |
6865 | md_number_to_chars (char *buf, valueT val, int n) | |
6866 | { | |
6867 | if (target_big_endian) | |
6868 | number_to_chars_bigendian (buf, val, n); | |
6869 | else | |
6870 | number_to_chars_littleendian (buf, val, n); | |
6871 | } | |
6872 | ||
6873 | /* MD interface: Sections. */ | |
6874 | ||
6875 | /* Estimate the size of a frag before relaxing. Assume everything fits in | |
6876 | 4 bytes. */ | |
6877 | ||
6878 | int | |
6879 | md_estimate_size_before_relax (fragS * fragp, segT segtype ATTRIBUTE_UNUSED) | |
6880 | { | |
6881 | fragp->fr_var = 4; | |
6882 | return 4; | |
6883 | } | |
6884 | ||
6885 | /* Round up a section size to the appropriate boundary. */ | |
6886 | ||
6887 | valueT | |
6888 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) | |
6889 | { | |
6890 | return size; | |
6891 | } | |
6892 | ||
6893 | /* This is called from HANDLE_ALIGN in write.c. Fill in the contents | |
f803aa8e DPT |
6894 | of an rs_align_code fragment. |
6895 | ||
6896 | Here we fill the frag with the appropriate info for padding the | |
6897 | output stream. The resulting frag will consist of a fixed (fr_fix) | |
6898 | and of a repeating (fr_var) part. | |
6899 | ||
6900 | The fixed content is always emitted before the repeating content and | |
6901 | these two parts are used as follows in constructing the output: | |
6902 | - the fixed part will be used to align to a valid instruction word | |
6903 | boundary, in case that we start at a misaligned address; as no | |
6904 | executable instruction can live at the misaligned location, we | |
6905 | simply fill with zeros; | |
6906 | - the variable part will be used to cover the remaining padding and | |
6907 | we fill using the AArch64 NOP instruction. | |
6908 | ||
6909 | Note that the size of a RS_ALIGN_CODE fragment is always 7 to provide | |
6910 | enough storage space for up to 3 bytes for padding the back to a valid | |
6911 | instruction alignment and exactly 4 bytes to store the NOP pattern. */ | |
a06ea964 NC |
6912 | |
6913 | void | |
6914 | aarch64_handle_align (fragS * fragP) | |
6915 | { | |
6916 | /* NOP = d503201f */ | |
6917 | /* AArch64 instructions are always little-endian. */ | |
d9235011 | 6918 | static unsigned char const aarch64_noop[4] = { 0x1f, 0x20, 0x03, 0xd5 }; |
a06ea964 NC |
6919 | |
6920 | int bytes, fix, noop_size; | |
6921 | char *p; | |
a06ea964 NC |
6922 | |
6923 | if (fragP->fr_type != rs_align_code) | |
6924 | return; | |
6925 | ||
6926 | bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix; | |
6927 | p = fragP->fr_literal + fragP->fr_fix; | |
a06ea964 NC |
6928 | |
6929 | #ifdef OBJ_ELF | |
6930 | gas_assert (fragP->tc_frag_data.recorded); | |
6931 | #endif | |
6932 | ||
a06ea964 | 6933 | noop_size = sizeof (aarch64_noop); |
a06ea964 | 6934 | |
f803aa8e DPT |
6935 | fix = bytes & (noop_size - 1); |
6936 | if (fix) | |
a06ea964 | 6937 | { |
a06ea964 NC |
6938 | #ifdef OBJ_ELF |
6939 | insert_data_mapping_symbol (MAP_INSN, fragP->fr_fix, fragP, fix); | |
6940 | #endif | |
6941 | memset (p, 0, fix); | |
6942 | p += fix; | |
f803aa8e | 6943 | fragP->fr_fix += fix; |
a06ea964 NC |
6944 | } |
6945 | ||
f803aa8e DPT |
6946 | if (noop_size) |
6947 | memcpy (p, aarch64_noop, noop_size); | |
6948 | fragP->fr_var = noop_size; | |
a06ea964 NC |
6949 | } |
6950 | ||
6951 | /* Perform target specific initialisation of a frag. | |
6952 | Note - despite the name this initialisation is not done when the frag | |
6953 | is created, but only when its type is assigned. A frag can be created | |
6954 | and used a long time before its type is set, so beware of assuming that | |
33eaf5de | 6955 | this initialisation is performed first. */ |
a06ea964 NC |
6956 | |
6957 | #ifndef OBJ_ELF | |
6958 | void | |
6959 | aarch64_init_frag (fragS * fragP ATTRIBUTE_UNUSED, | |
6960 | int max_chars ATTRIBUTE_UNUSED) | |
6961 | { | |
6962 | } | |
6963 | ||
6964 | #else /* OBJ_ELF is defined. */ | |
6965 | void | |
6966 | aarch64_init_frag (fragS * fragP, int max_chars) | |
6967 | { | |
6968 | /* Record a mapping symbol for alignment frags. We will delete this | |
6969 | later if the alignment ends up empty. */ | |
6970 | if (!fragP->tc_frag_data.recorded) | |
c7ad08e6 RL |
6971 | fragP->tc_frag_data.recorded = 1; |
6972 | ||
6973 | switch (fragP->fr_type) | |
a06ea964 | 6974 | { |
c7ad08e6 RL |
6975 | case rs_align_test: |
6976 | case rs_fill: | |
6977 | mapping_state_2 (MAP_DATA, max_chars); | |
6978 | break; | |
7ea12e5c NC |
6979 | case rs_align: |
6980 | /* PR 20364: We can get alignment frags in code sections, | |
6981 | so do not just assume that we should use the MAP_DATA state. */ | |
6982 | mapping_state_2 (subseg_text_p (now_seg) ? MAP_INSN : MAP_DATA, max_chars); | |
6983 | break; | |
c7ad08e6 RL |
6984 | case rs_align_code: |
6985 | mapping_state_2 (MAP_INSN, max_chars); | |
6986 | break; | |
6987 | default: | |
6988 | break; | |
a06ea964 NC |
6989 | } |
6990 | } | |
6991 | \f | |
6992 | /* Initialize the DWARF-2 unwind information for this procedure. */ | |
6993 | ||
6994 | void | |
6995 | tc_aarch64_frame_initial_instructions (void) | |
6996 | { | |
6997 | cfi_add_CFA_def_cfa (REG_SP, 0); | |
6998 | } | |
6999 | #endif /* OBJ_ELF */ | |
7000 | ||
7001 | /* Convert REGNAME to a DWARF-2 register number. */ | |
7002 | ||
7003 | int | |
7004 | tc_aarch64_regname_to_dw2regnum (char *regname) | |
7005 | { | |
7006 | const reg_entry *reg = parse_reg (®name); | |
7007 | if (reg == NULL) | |
7008 | return -1; | |
7009 | ||
7010 | switch (reg->type) | |
7011 | { | |
7012 | case REG_TYPE_SP_32: | |
7013 | case REG_TYPE_SP_64: | |
7014 | case REG_TYPE_R_32: | |
7015 | case REG_TYPE_R_64: | |
a2cac51c RH |
7016 | return reg->number; |
7017 | ||
a06ea964 NC |
7018 | case REG_TYPE_FP_B: |
7019 | case REG_TYPE_FP_H: | |
7020 | case REG_TYPE_FP_S: | |
7021 | case REG_TYPE_FP_D: | |
7022 | case REG_TYPE_FP_Q: | |
a2cac51c RH |
7023 | return reg->number + 64; |
7024 | ||
a06ea964 NC |
7025 | default: |
7026 | break; | |
7027 | } | |
7028 | return -1; | |
7029 | } | |
7030 | ||
cec5225b YZ |
7031 | /* Implement DWARF2_ADDR_SIZE. */ |
7032 | ||
7033 | int | |
7034 | aarch64_dwarf2_addr_size (void) | |
7035 | { | |
7036 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) | |
7037 | if (ilp32_p) | |
7038 | return 4; | |
7039 | #endif | |
7040 | return bfd_arch_bits_per_address (stdoutput) / 8; | |
7041 | } | |
7042 | ||
a06ea964 NC |
7043 | /* MD interface: Symbol and relocation handling. */ |
7044 | ||
7045 | /* Return the address within the segment that a PC-relative fixup is | |
7046 | relative to. For AArch64 PC-relative fixups applied to instructions | |
7047 | are generally relative to the location plus AARCH64_PCREL_OFFSET bytes. */ | |
7048 | ||
7049 | long | |
7050 | md_pcrel_from_section (fixS * fixP, segT seg) | |
7051 | { | |
7052 | offsetT base = fixP->fx_where + fixP->fx_frag->fr_address; | |
7053 | ||
7054 | /* If this is pc-relative and we are going to emit a relocation | |
7055 | then we just want to put out any pipeline compensation that the linker | |
7056 | will need. Otherwise we want to use the calculated base. */ | |
7057 | if (fixP->fx_pcrel | |
7058 | && ((fixP->fx_addsy && S_GET_SEGMENT (fixP->fx_addsy) != seg) | |
7059 | || aarch64_force_relocation (fixP))) | |
7060 | base = 0; | |
7061 | ||
7062 | /* AArch64 should be consistent for all pc-relative relocations. */ | |
7063 | return base + AARCH64_PCREL_OFFSET; | |
7064 | } | |
7065 | ||
7066 | /* Under ELF we need to default _GLOBAL_OFFSET_TABLE. | |
7067 | Otherwise we have no need to default values of symbols. */ | |
7068 | ||
7069 | symbolS * | |
7070 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) | |
7071 | { | |
7072 | #ifdef OBJ_ELF | |
7073 | if (name[0] == '_' && name[1] == 'G' | |
7074 | && streq (name, GLOBAL_OFFSET_TABLE_NAME)) | |
7075 | { | |
7076 | if (!GOT_symbol) | |
7077 | { | |
7078 | if (symbol_find (name)) | |
7079 | as_bad (_("GOT already in the symbol table")); | |
7080 | ||
7081 | GOT_symbol = symbol_new (name, undefined_section, | |
7082 | (valueT) 0, &zero_address_frag); | |
7083 | } | |
7084 | ||
7085 | return GOT_symbol; | |
7086 | } | |
7087 | #endif | |
7088 | ||
7089 | return 0; | |
7090 | } | |
7091 | ||
7092 | /* Return non-zero if the indicated VALUE has overflowed the maximum | |
7093 | range expressible by a unsigned number with the indicated number of | |
7094 | BITS. */ | |
7095 | ||
7096 | static bfd_boolean | |
7097 | unsigned_overflow (valueT value, unsigned bits) | |
7098 | { | |
7099 | valueT lim; | |
7100 | if (bits >= sizeof (valueT) * 8) | |
7101 | return FALSE; | |
7102 | lim = (valueT) 1 << bits; | |
7103 | return (value >= lim); | |
7104 | } | |
7105 | ||
7106 | ||
7107 | /* Return non-zero if the indicated VALUE has overflowed the maximum | |
7108 | range expressible by an signed number with the indicated number of | |
7109 | BITS. */ | |
7110 | ||
7111 | static bfd_boolean | |
7112 | signed_overflow (offsetT value, unsigned bits) | |
7113 | { | |
7114 | offsetT lim; | |
7115 | if (bits >= sizeof (offsetT) * 8) | |
7116 | return FALSE; | |
7117 | lim = (offsetT) 1 << (bits - 1); | |
7118 | return (value < -lim || value >= lim); | |
7119 | } | |
7120 | ||
7121 | /* Given an instruction in *INST, which is expected to be a scaled, 12-bit, | |
7122 | unsigned immediate offset load/store instruction, try to encode it as | |
7123 | an unscaled, 9-bit, signed immediate offset load/store instruction. | |
7124 | Return TRUE if it is successful; otherwise return FALSE. | |
7125 | ||
7126 | As a programmer-friendly assembler, LDUR/STUR instructions can be generated | |
7127 | in response to the standard LDR/STR mnemonics when the immediate offset is | |
7128 | unambiguous, i.e. when it is negative or unaligned. */ | |
7129 | ||
7130 | static bfd_boolean | |
7131 | try_to_encode_as_unscaled_ldst (aarch64_inst *instr) | |
7132 | { | |
7133 | int idx; | |
7134 | enum aarch64_op new_op; | |
7135 | const aarch64_opcode *new_opcode; | |
7136 | ||
7137 | gas_assert (instr->opcode->iclass == ldst_pos); | |
7138 | ||
7139 | switch (instr->opcode->op) | |
7140 | { | |
7141 | case OP_LDRB_POS:new_op = OP_LDURB; break; | |
7142 | case OP_STRB_POS: new_op = OP_STURB; break; | |
7143 | case OP_LDRSB_POS: new_op = OP_LDURSB; break; | |
7144 | case OP_LDRH_POS: new_op = OP_LDURH; break; | |
7145 | case OP_STRH_POS: new_op = OP_STURH; break; | |
7146 | case OP_LDRSH_POS: new_op = OP_LDURSH; break; | |
7147 | case OP_LDR_POS: new_op = OP_LDUR; break; | |
7148 | case OP_STR_POS: new_op = OP_STUR; break; | |
7149 | case OP_LDRF_POS: new_op = OP_LDURV; break; | |
7150 | case OP_STRF_POS: new_op = OP_STURV; break; | |
7151 | case OP_LDRSW_POS: new_op = OP_LDURSW; break; | |
7152 | case OP_PRFM_POS: new_op = OP_PRFUM; break; | |
7153 | default: new_op = OP_NIL; break; | |
7154 | } | |
7155 | ||
7156 | if (new_op == OP_NIL) | |
7157 | return FALSE; | |
7158 | ||
7159 | new_opcode = aarch64_get_opcode (new_op); | |
7160 | gas_assert (new_opcode != NULL); | |
7161 | ||
7162 | DEBUG_TRACE ("Check programmer-friendly STURB/LDURB -> STRB/LDRB: %d == %d", | |
7163 | instr->opcode->op, new_opcode->op); | |
7164 | ||
7165 | aarch64_replace_opcode (instr, new_opcode); | |
7166 | ||
7167 | /* Clear up the ADDR_SIMM9's qualifier; otherwise the | |
7168 | qualifier matching may fail because the out-of-date qualifier will | |
7169 | prevent the operand being updated with a new and correct qualifier. */ | |
7170 | idx = aarch64_operand_index (instr->opcode->operands, | |
7171 | AARCH64_OPND_ADDR_SIMM9); | |
7172 | gas_assert (idx == 1); | |
7173 | instr->operands[idx].qualifier = AARCH64_OPND_QLF_NIL; | |
7174 | ||
7175 | DEBUG_TRACE ("Found LDURB entry to encode programmer-friendly LDRB"); | |
7176 | ||
7177 | if (!aarch64_opcode_encode (instr->opcode, instr, &instr->value, NULL, NULL)) | |
7178 | return FALSE; | |
7179 | ||
7180 | return TRUE; | |
7181 | } | |
7182 | ||
7183 | /* Called by fix_insn to fix a MOV immediate alias instruction. | |
7184 | ||
7185 | Operand for a generic move immediate instruction, which is an alias | |
7186 | instruction that generates a single MOVZ, MOVN or ORR instruction to loads | |
7187 | a 32-bit/64-bit immediate value into general register. An assembler error | |
7188 | shall result if the immediate cannot be created by a single one of these | |
7189 | instructions. If there is a choice, then to ensure reversability an | |
7190 | assembler must prefer a MOVZ to MOVN, and MOVZ or MOVN to ORR. */ | |
7191 | ||
7192 | static void | |
7193 | fix_mov_imm_insn (fixS *fixP, char *buf, aarch64_inst *instr, offsetT value) | |
7194 | { | |
7195 | const aarch64_opcode *opcode; | |
7196 | ||
7197 | /* Need to check if the destination is SP/ZR. The check has to be done | |
7198 | before any aarch64_replace_opcode. */ | |
7199 | int try_mov_wide_p = !aarch64_stack_pointer_p (&instr->operands[0]); | |
7200 | int try_mov_bitmask_p = !aarch64_zero_register_p (&instr->operands[0]); | |
7201 | ||
7202 | instr->operands[1].imm.value = value; | |
7203 | instr->operands[1].skip = 0; | |
7204 | ||
7205 | if (try_mov_wide_p) | |
7206 | { | |
7207 | /* Try the MOVZ alias. */ | |
7208 | opcode = aarch64_get_opcode (OP_MOV_IMM_WIDE); | |
7209 | aarch64_replace_opcode (instr, opcode); | |
7210 | if (aarch64_opcode_encode (instr->opcode, instr, | |
7211 | &instr->value, NULL, NULL)) | |
7212 | { | |
7213 | put_aarch64_insn (buf, instr->value); | |
7214 | return; | |
7215 | } | |
7216 | /* Try the MOVK alias. */ | |
7217 | opcode = aarch64_get_opcode (OP_MOV_IMM_WIDEN); | |
7218 | aarch64_replace_opcode (instr, opcode); | |
7219 | if (aarch64_opcode_encode (instr->opcode, instr, | |
7220 | &instr->value, NULL, NULL)) | |
7221 | { | |
7222 | put_aarch64_insn (buf, instr->value); | |
7223 | return; | |
7224 | } | |
7225 | } | |
7226 | ||
7227 | if (try_mov_bitmask_p) | |
7228 | { | |
7229 | /* Try the ORR alias. */ | |
7230 | opcode = aarch64_get_opcode (OP_MOV_IMM_LOG); | |
7231 | aarch64_replace_opcode (instr, opcode); | |
7232 | if (aarch64_opcode_encode (instr->opcode, instr, | |
7233 | &instr->value, NULL, NULL)) | |
7234 | { | |
7235 | put_aarch64_insn (buf, instr->value); | |
7236 | return; | |
7237 | } | |
7238 | } | |
7239 | ||
7240 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7241 | _("immediate cannot be moved by a single instruction")); | |
7242 | } | |
7243 | ||
7244 | /* An instruction operand which is immediate related may have symbol used | |
7245 | in the assembly, e.g. | |
7246 | ||
7247 | mov w0, u32 | |
7248 | .set u32, 0x00ffff00 | |
7249 | ||
7250 | At the time when the assembly instruction is parsed, a referenced symbol, | |
7251 | like 'u32' in the above example may not have been seen; a fixS is created | |
7252 | in such a case and is handled here after symbols have been resolved. | |
7253 | Instruction is fixed up with VALUE using the information in *FIXP plus | |
7254 | extra information in FLAGS. | |
7255 | ||
7256 | This function is called by md_apply_fix to fix up instructions that need | |
7257 | a fix-up described above but does not involve any linker-time relocation. */ | |
7258 | ||
7259 | static void | |
7260 | fix_insn (fixS *fixP, uint32_t flags, offsetT value) | |
7261 | { | |
7262 | int idx; | |
7263 | uint32_t insn; | |
7264 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
7265 | enum aarch64_opnd opnd = fixP->tc_fix_data.opnd; | |
7266 | aarch64_inst *new_inst = fixP->tc_fix_data.inst; | |
7267 | ||
7268 | if (new_inst) | |
7269 | { | |
7270 | /* Now the instruction is about to be fixed-up, so the operand that | |
7271 | was previously marked as 'ignored' needs to be unmarked in order | |
7272 | to get the encoding done properly. */ | |
7273 | idx = aarch64_operand_index (new_inst->opcode->operands, opnd); | |
7274 | new_inst->operands[idx].skip = 0; | |
7275 | } | |
7276 | ||
7277 | gas_assert (opnd != AARCH64_OPND_NIL); | |
7278 | ||
7279 | switch (opnd) | |
7280 | { | |
7281 | case AARCH64_OPND_EXCEPTION: | |
7282 | if (unsigned_overflow (value, 16)) | |
7283 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7284 | _("immediate out of range")); | |
7285 | insn = get_aarch64_insn (buf); | |
7286 | insn |= encode_svc_imm (value); | |
7287 | put_aarch64_insn (buf, insn); | |
7288 | break; | |
7289 | ||
7290 | case AARCH64_OPND_AIMM: | |
7291 | /* ADD or SUB with immediate. | |
7292 | NOTE this assumes we come here with a add/sub shifted reg encoding | |
7293 | 3 322|2222|2 2 2 21111 111111 | |
7294 | 1 098|7654|3 2 1 09876 543210 98765 43210 | |
7295 | 0b000000 sf 000|1011|shift 0 Rm imm6 Rn Rd ADD | |
7296 | 2b000000 sf 010|1011|shift 0 Rm imm6 Rn Rd ADDS | |
7297 | 4b000000 sf 100|1011|shift 0 Rm imm6 Rn Rd SUB | |
7298 | 6b000000 sf 110|1011|shift 0 Rm imm6 Rn Rd SUBS | |
7299 | -> | |
7300 | 3 322|2222|2 2 221111111111 | |
7301 | 1 098|7654|3 2 109876543210 98765 43210 | |
7302 | 11000000 sf 001|0001|shift imm12 Rn Rd ADD | |
7303 | 31000000 sf 011|0001|shift imm12 Rn Rd ADDS | |
7304 | 51000000 sf 101|0001|shift imm12 Rn Rd SUB | |
7305 | 71000000 sf 111|0001|shift imm12 Rn Rd SUBS | |
7306 | Fields sf Rn Rd are already set. */ | |
7307 | insn = get_aarch64_insn (buf); | |
7308 | if (value < 0) | |
7309 | { | |
7310 | /* Add <-> sub. */ | |
7311 | insn = reencode_addsub_switch_add_sub (insn); | |
7312 | value = -value; | |
7313 | } | |
7314 | ||
7315 | if ((flags & FIXUP_F_HAS_EXPLICIT_SHIFT) == 0 | |
7316 | && unsigned_overflow (value, 12)) | |
7317 | { | |
7318 | /* Try to shift the value by 12 to make it fit. */ | |
7319 | if (((value >> 12) << 12) == value | |
7320 | && ! unsigned_overflow (value, 12 + 12)) | |
7321 | { | |
7322 | value >>= 12; | |
7323 | insn |= encode_addsub_imm_shift_amount (1); | |
7324 | } | |
7325 | } | |
7326 | ||
7327 | if (unsigned_overflow (value, 12)) | |
7328 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7329 | _("immediate out of range")); | |
7330 | ||
7331 | insn |= encode_addsub_imm (value); | |
7332 | ||
7333 | put_aarch64_insn (buf, insn); | |
7334 | break; | |
7335 | ||
7336 | case AARCH64_OPND_SIMD_IMM: | |
7337 | case AARCH64_OPND_SIMD_IMM_SFT: | |
7338 | case AARCH64_OPND_LIMM: | |
7339 | /* Bit mask immediate. */ | |
7340 | gas_assert (new_inst != NULL); | |
7341 | idx = aarch64_operand_index (new_inst->opcode->operands, opnd); | |
7342 | new_inst->operands[idx].imm.value = value; | |
7343 | if (aarch64_opcode_encode (new_inst->opcode, new_inst, | |
7344 | &new_inst->value, NULL, NULL)) | |
7345 | put_aarch64_insn (buf, new_inst->value); | |
7346 | else | |
7347 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7348 | _("invalid immediate")); | |
7349 | break; | |
7350 | ||
7351 | case AARCH64_OPND_HALF: | |
7352 | /* 16-bit unsigned immediate. */ | |
7353 | if (unsigned_overflow (value, 16)) | |
7354 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7355 | _("immediate out of range")); | |
7356 | insn = get_aarch64_insn (buf); | |
7357 | insn |= encode_movw_imm (value & 0xffff); | |
7358 | put_aarch64_insn (buf, insn); | |
7359 | break; | |
7360 | ||
7361 | case AARCH64_OPND_IMM_MOV: | |
7362 | /* Operand for a generic move immediate instruction, which is | |
7363 | an alias instruction that generates a single MOVZ, MOVN or ORR | |
7364 | instruction to loads a 32-bit/64-bit immediate value into general | |
7365 | register. An assembler error shall result if the immediate cannot be | |
7366 | created by a single one of these instructions. If there is a choice, | |
7367 | then to ensure reversability an assembler must prefer a MOVZ to MOVN, | |
7368 | and MOVZ or MOVN to ORR. */ | |
7369 | gas_assert (new_inst != NULL); | |
7370 | fix_mov_imm_insn (fixP, buf, new_inst, value); | |
7371 | break; | |
7372 | ||
7373 | case AARCH64_OPND_ADDR_SIMM7: | |
7374 | case AARCH64_OPND_ADDR_SIMM9: | |
7375 | case AARCH64_OPND_ADDR_SIMM9_2: | |
3f06e550 | 7376 | case AARCH64_OPND_ADDR_SIMM10: |
a06ea964 NC |
7377 | case AARCH64_OPND_ADDR_UIMM12: |
7378 | /* Immediate offset in an address. */ | |
7379 | insn = get_aarch64_insn (buf); | |
7380 | ||
7381 | gas_assert (new_inst != NULL && new_inst->value == insn); | |
7382 | gas_assert (new_inst->opcode->operands[1] == opnd | |
7383 | || new_inst->opcode->operands[2] == opnd); | |
7384 | ||
7385 | /* Get the index of the address operand. */ | |
7386 | if (new_inst->opcode->operands[1] == opnd) | |
7387 | /* e.g. STR <Xt>, [<Xn|SP>, <R><m>{, <extend> {<amount>}}]. */ | |
7388 | idx = 1; | |
7389 | else | |
7390 | /* e.g. LDP <Qt1>, <Qt2>, [<Xn|SP>{, #<imm>}]. */ | |
7391 | idx = 2; | |
7392 | ||
7393 | /* Update the resolved offset value. */ | |
7394 | new_inst->operands[idx].addr.offset.imm = value; | |
7395 | ||
7396 | /* Encode/fix-up. */ | |
7397 | if (aarch64_opcode_encode (new_inst->opcode, new_inst, | |
7398 | &new_inst->value, NULL, NULL)) | |
7399 | { | |
7400 | put_aarch64_insn (buf, new_inst->value); | |
7401 | break; | |
7402 | } | |
7403 | else if (new_inst->opcode->iclass == ldst_pos | |
7404 | && try_to_encode_as_unscaled_ldst (new_inst)) | |
7405 | { | |
7406 | put_aarch64_insn (buf, new_inst->value); | |
7407 | break; | |
7408 | } | |
7409 | ||
7410 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7411 | _("immediate offset out of range")); | |
7412 | break; | |
7413 | ||
7414 | default: | |
7415 | gas_assert (0); | |
7416 | as_fatal (_("unhandled operand code %d"), opnd); | |
7417 | } | |
7418 | } | |
7419 | ||
7420 | /* Apply a fixup (fixP) to segment data, once it has been determined | |
7421 | by our caller that we have all the info we need to fix it up. | |
7422 | ||
7423 | Parameter valP is the pointer to the value of the bits. */ | |
7424 | ||
7425 | void | |
7426 | md_apply_fix (fixS * fixP, valueT * valP, segT seg) | |
7427 | { | |
7428 | offsetT value = *valP; | |
7429 | uint32_t insn; | |
7430 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
7431 | int scale; | |
7432 | unsigned flags = fixP->fx_addnumber; | |
7433 | ||
7434 | DEBUG_TRACE ("\n\n"); | |
7435 | DEBUG_TRACE ("~~~~~~~~~~~~~~~~~~~~~~~~~"); | |
7436 | DEBUG_TRACE ("Enter md_apply_fix"); | |
7437 | ||
7438 | gas_assert (fixP->fx_r_type <= BFD_RELOC_UNUSED); | |
7439 | ||
7440 | /* Note whether this will delete the relocation. */ | |
7441 | ||
7442 | if (fixP->fx_addsy == 0 && !fixP->fx_pcrel) | |
7443 | fixP->fx_done = 1; | |
7444 | ||
7445 | /* Process the relocations. */ | |
7446 | switch (fixP->fx_r_type) | |
7447 | { | |
7448 | case BFD_RELOC_NONE: | |
7449 | /* This will need to go in the object file. */ | |
7450 | fixP->fx_done = 0; | |
7451 | break; | |
7452 | ||
7453 | case BFD_RELOC_8: | |
7454 | case BFD_RELOC_8_PCREL: | |
7455 | if (fixP->fx_done || !seg->use_rela_p) | |
7456 | md_number_to_chars (buf, value, 1); | |
7457 | break; | |
7458 | ||
7459 | case BFD_RELOC_16: | |
7460 | case BFD_RELOC_16_PCREL: | |
7461 | if (fixP->fx_done || !seg->use_rela_p) | |
7462 | md_number_to_chars (buf, value, 2); | |
7463 | break; | |
7464 | ||
7465 | case BFD_RELOC_32: | |
7466 | case BFD_RELOC_32_PCREL: | |
7467 | if (fixP->fx_done || !seg->use_rela_p) | |
7468 | md_number_to_chars (buf, value, 4); | |
7469 | break; | |
7470 | ||
7471 | case BFD_RELOC_64: | |
7472 | case BFD_RELOC_64_PCREL: | |
7473 | if (fixP->fx_done || !seg->use_rela_p) | |
7474 | md_number_to_chars (buf, value, 8); | |
7475 | break; | |
7476 | ||
7477 | case BFD_RELOC_AARCH64_GAS_INTERNAL_FIXUP: | |
7478 | /* We claim that these fixups have been processed here, even if | |
7479 | in fact we generate an error because we do not have a reloc | |
7480 | for them, so tc_gen_reloc() will reject them. */ | |
7481 | fixP->fx_done = 1; | |
7482 | if (fixP->fx_addsy && !S_IS_DEFINED (fixP->fx_addsy)) | |
7483 | { | |
7484 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7485 | _("undefined symbol %s used as an immediate value"), | |
7486 | S_GET_NAME (fixP->fx_addsy)); | |
7487 | goto apply_fix_return; | |
7488 | } | |
7489 | fix_insn (fixP, flags, value); | |
7490 | break; | |
7491 | ||
7492 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
a06ea964 NC |
7493 | if (fixP->fx_done || !seg->use_rela_p) |
7494 | { | |
89d2a2a3 MS |
7495 | if (value & 3) |
7496 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7497 | _("pc-relative load offset not word aligned")); | |
7498 | if (signed_overflow (value, 21)) | |
7499 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7500 | _("pc-relative load offset out of range")); | |
a06ea964 NC |
7501 | insn = get_aarch64_insn (buf); |
7502 | insn |= encode_ld_lit_ofs_19 (value >> 2); | |
7503 | put_aarch64_insn (buf, insn); | |
7504 | } | |
7505 | break; | |
7506 | ||
7507 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
a06ea964 NC |
7508 | if (fixP->fx_done || !seg->use_rela_p) |
7509 | { | |
89d2a2a3 MS |
7510 | if (signed_overflow (value, 21)) |
7511 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7512 | _("pc-relative address offset out of range")); | |
a06ea964 NC |
7513 | insn = get_aarch64_insn (buf); |
7514 | insn |= encode_adr_imm (value); | |
7515 | put_aarch64_insn (buf, insn); | |
7516 | } | |
7517 | break; | |
7518 | ||
7519 | case BFD_RELOC_AARCH64_BRANCH19: | |
a06ea964 NC |
7520 | if (fixP->fx_done || !seg->use_rela_p) |
7521 | { | |
89d2a2a3 MS |
7522 | if (value & 3) |
7523 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7524 | _("conditional branch target not word aligned")); | |
7525 | if (signed_overflow (value, 21)) | |
7526 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7527 | _("conditional branch out of range")); | |
a06ea964 NC |
7528 | insn = get_aarch64_insn (buf); |
7529 | insn |= encode_cond_branch_ofs_19 (value >> 2); | |
7530 | put_aarch64_insn (buf, insn); | |
7531 | } | |
7532 | break; | |
7533 | ||
7534 | case BFD_RELOC_AARCH64_TSTBR14: | |
a06ea964 NC |
7535 | if (fixP->fx_done || !seg->use_rela_p) |
7536 | { | |
89d2a2a3 MS |
7537 | if (value & 3) |
7538 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7539 | _("conditional branch target not word aligned")); | |
7540 | if (signed_overflow (value, 16)) | |
7541 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7542 | _("conditional branch out of range")); | |
a06ea964 NC |
7543 | insn = get_aarch64_insn (buf); |
7544 | insn |= encode_tst_branch_ofs_14 (value >> 2); | |
7545 | put_aarch64_insn (buf, insn); | |
7546 | } | |
7547 | break; | |
7548 | ||
a06ea964 | 7549 | case BFD_RELOC_AARCH64_CALL26: |
f09c556a | 7550 | case BFD_RELOC_AARCH64_JUMP26: |
a06ea964 NC |
7551 | if (fixP->fx_done || !seg->use_rela_p) |
7552 | { | |
89d2a2a3 MS |
7553 | if (value & 3) |
7554 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7555 | _("branch target not word aligned")); | |
7556 | if (signed_overflow (value, 28)) | |
7557 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7558 | _("branch out of range")); | |
a06ea964 NC |
7559 | insn = get_aarch64_insn (buf); |
7560 | insn |= encode_branch_ofs_26 (value >> 2); | |
7561 | put_aarch64_insn (buf, insn); | |
7562 | } | |
7563 | break; | |
7564 | ||
7565 | case BFD_RELOC_AARCH64_MOVW_G0: | |
a06ea964 | 7566 | case BFD_RELOC_AARCH64_MOVW_G0_NC: |
f09c556a | 7567 | case BFD_RELOC_AARCH64_MOVW_G0_S: |
ca632371 | 7568 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
a06ea964 NC |
7569 | scale = 0; |
7570 | goto movw_common; | |
7571 | case BFD_RELOC_AARCH64_MOVW_G1: | |
a06ea964 | 7572 | case BFD_RELOC_AARCH64_MOVW_G1_NC: |
f09c556a | 7573 | case BFD_RELOC_AARCH64_MOVW_G1_S: |
654248e7 | 7574 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
a06ea964 NC |
7575 | scale = 16; |
7576 | goto movw_common; | |
43a357f9 RL |
7577 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
7578 | scale = 0; | |
7579 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
7580 | /* Should always be exported to object file, see | |
7581 | aarch64_force_relocation(). */ | |
7582 | gas_assert (!fixP->fx_done); | |
7583 | gas_assert (seg->use_rela_p); | |
7584 | goto movw_common; | |
7585 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
7586 | scale = 16; | |
7587 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
7588 | /* Should always be exported to object file, see | |
7589 | aarch64_force_relocation(). */ | |
7590 | gas_assert (!fixP->fx_done); | |
7591 | gas_assert (seg->use_rela_p); | |
7592 | goto movw_common; | |
a06ea964 | 7593 | case BFD_RELOC_AARCH64_MOVW_G2: |
a06ea964 | 7594 | case BFD_RELOC_AARCH64_MOVW_G2_NC: |
f09c556a | 7595 | case BFD_RELOC_AARCH64_MOVW_G2_S: |
a06ea964 NC |
7596 | scale = 32; |
7597 | goto movw_common; | |
7598 | case BFD_RELOC_AARCH64_MOVW_G3: | |
7599 | scale = 48; | |
7600 | movw_common: | |
7601 | if (fixP->fx_done || !seg->use_rela_p) | |
7602 | { | |
7603 | insn = get_aarch64_insn (buf); | |
7604 | ||
7605 | if (!fixP->fx_done) | |
7606 | { | |
7607 | /* REL signed addend must fit in 16 bits */ | |
7608 | if (signed_overflow (value, 16)) | |
7609 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7610 | _("offset out of range")); | |
7611 | } | |
7612 | else | |
7613 | { | |
7614 | /* Check for overflow and scale. */ | |
7615 | switch (fixP->fx_r_type) | |
7616 | { | |
7617 | case BFD_RELOC_AARCH64_MOVW_G0: | |
7618 | case BFD_RELOC_AARCH64_MOVW_G1: | |
7619 | case BFD_RELOC_AARCH64_MOVW_G2: | |
7620 | case BFD_RELOC_AARCH64_MOVW_G3: | |
654248e7 | 7621 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
43a357f9 | 7622 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: |
a06ea964 NC |
7623 | if (unsigned_overflow (value, scale + 16)) |
7624 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7625 | _("unsigned value out of range")); | |
7626 | break; | |
7627 | case BFD_RELOC_AARCH64_MOVW_G0_S: | |
7628 | case BFD_RELOC_AARCH64_MOVW_G1_S: | |
7629 | case BFD_RELOC_AARCH64_MOVW_G2_S: | |
7630 | /* NOTE: We can only come here with movz or movn. */ | |
7631 | if (signed_overflow (value, scale + 16)) | |
7632 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7633 | _("signed value out of range")); | |
7634 | if (value < 0) | |
7635 | { | |
7636 | /* Force use of MOVN. */ | |
7637 | value = ~value; | |
7638 | insn = reencode_movzn_to_movn (insn); | |
7639 | } | |
7640 | else | |
7641 | { | |
7642 | /* Force use of MOVZ. */ | |
7643 | insn = reencode_movzn_to_movz (insn); | |
7644 | } | |
7645 | break; | |
7646 | default: | |
7647 | /* Unchecked relocations. */ | |
7648 | break; | |
7649 | } | |
7650 | value >>= scale; | |
7651 | } | |
7652 | ||
7653 | /* Insert value into MOVN/MOVZ/MOVK instruction. */ | |
7654 | insn |= encode_movw_imm (value & 0xffff); | |
7655 | ||
7656 | put_aarch64_insn (buf, insn); | |
7657 | } | |
7658 | break; | |
7659 | ||
a6bb11b2 YZ |
7660 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC: |
7661 | fixP->fx_r_type = (ilp32_p | |
7662 | ? BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC | |
7663 | : BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC); | |
7664 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
7665 | /* Should always be exported to object file, see | |
7666 | aarch64_force_relocation(). */ | |
7667 | gas_assert (!fixP->fx_done); | |
7668 | gas_assert (seg->use_rela_p); | |
7669 | break; | |
7670 | ||
7671 | case BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC: | |
7672 | fixP->fx_r_type = (ilp32_p | |
7673 | ? BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC | |
7674 | : BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC); | |
7675 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
7676 | /* Should always be exported to object file, see | |
7677 | aarch64_force_relocation(). */ | |
7678 | gas_assert (!fixP->fx_done); | |
7679 | gas_assert (seg->use_rela_p); | |
7680 | break; | |
7681 | ||
2c0a3565 MS |
7682 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC: |
7683 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: | |
389b8029 | 7684 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
2c0a3565 MS |
7685 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
7686 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC: | |
1ada945d | 7687 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
a06ea964 | 7688 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
2c0a3565 | 7689 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
3c12b054 | 7690 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
3e8286c0 | 7691 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
1aa66fb1 | 7692 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
a06ea964 | 7693 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
a6bb11b2 | 7694 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
2c0a3565 | 7695 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
043bf05a | 7696 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
3b957e5b RL |
7697 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
7698 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
49df5539 | 7699 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12: |
70151fb5 | 7700 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12: |
13289c10 | 7701 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: |
a12fad50 | 7702 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
1107e076 | 7703 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
6c37fedc | 7704 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
4c562523 JW |
7705 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12: |
7706 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC: | |
7707 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12: | |
7708 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC: | |
7709 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12: | |
7710 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC: | |
7711 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12: | |
7712 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC: | |
49df5539 JW |
7713 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0: |
7714 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: | |
7715 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1: | |
7716 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC: | |
7717 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2: | |
a06ea964 | 7718 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: |
2c0a3565 | 7719 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: |
a06ea964 | 7720 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: |
a06ea964 NC |
7721 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
7722 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC: | |
2c0a3565 MS |
7723 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: |
7724 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC: | |
7725 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: | |
a06ea964 NC |
7726 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
7727 | /* Should always be exported to object file, see | |
7728 | aarch64_force_relocation(). */ | |
7729 | gas_assert (!fixP->fx_done); | |
7730 | gas_assert (seg->use_rela_p); | |
7731 | break; | |
7732 | ||
a6bb11b2 YZ |
7733 | case BFD_RELOC_AARCH64_LD_GOT_LO12_NC: |
7734 | /* Should always be exported to object file, see | |
7735 | aarch64_force_relocation(). */ | |
7736 | fixP->fx_r_type = (ilp32_p | |
7737 | ? BFD_RELOC_AARCH64_LD32_GOT_LO12_NC | |
7738 | : BFD_RELOC_AARCH64_LD64_GOT_LO12_NC); | |
7739 | gas_assert (!fixP->fx_done); | |
7740 | gas_assert (seg->use_rela_p); | |
7741 | break; | |
7742 | ||
a06ea964 | 7743 | case BFD_RELOC_AARCH64_ADD_LO12: |
f09c556a JW |
7744 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
7745 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: | |
7746 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
7747 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
7748 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: | |
3d715ce4 | 7749 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
87f5fbcc | 7750 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
a921b5bd | 7751 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
f09c556a JW |
7752 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
7753 | case BFD_RELOC_AARCH64_LDST128_LO12: | |
a06ea964 NC |
7754 | case BFD_RELOC_AARCH64_LDST16_LO12: |
7755 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
7756 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
f09c556a | 7757 | case BFD_RELOC_AARCH64_LDST8_LO12: |
a06ea964 NC |
7758 | /* Should always be exported to object file, see |
7759 | aarch64_force_relocation(). */ | |
7760 | gas_assert (!fixP->fx_done); | |
7761 | gas_assert (seg->use_rela_p); | |
7762 | break; | |
7763 | ||
7764 | case BFD_RELOC_AARCH64_TLSDESC_ADD: | |
a06ea964 | 7765 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
f09c556a | 7766 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
a06ea964 NC |
7767 | break; |
7768 | ||
b97e87cc NC |
7769 | case BFD_RELOC_UNUSED: |
7770 | /* An error will already have been reported. */ | |
7771 | break; | |
7772 | ||
a06ea964 NC |
7773 | default: |
7774 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
7775 | _("unexpected %s fixup"), | |
7776 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
7777 | break; | |
7778 | } | |
7779 | ||
7780 | apply_fix_return: | |
7781 | /* Free the allocated the struct aarch64_inst. | |
7782 | N.B. currently there are very limited number of fix-up types actually use | |
7783 | this field, so the impact on the performance should be minimal . */ | |
7784 | if (fixP->tc_fix_data.inst != NULL) | |
7785 | free (fixP->tc_fix_data.inst); | |
7786 | ||
7787 | return; | |
7788 | } | |
7789 | ||
7790 | /* Translate internal representation of relocation info to BFD target | |
7791 | format. */ | |
7792 | ||
7793 | arelent * | |
7794 | tc_gen_reloc (asection * section, fixS * fixp) | |
7795 | { | |
7796 | arelent *reloc; | |
7797 | bfd_reloc_code_real_type code; | |
7798 | ||
325801bd | 7799 | reloc = XNEW (arelent); |
a06ea964 | 7800 | |
325801bd | 7801 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
a06ea964 NC |
7802 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
7803 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
7804 | ||
7805 | if (fixp->fx_pcrel) | |
7806 | { | |
7807 | if (section->use_rela_p) | |
7808 | fixp->fx_offset -= md_pcrel_from_section (fixp, section); | |
7809 | else | |
7810 | fixp->fx_offset = reloc->address; | |
7811 | } | |
7812 | reloc->addend = fixp->fx_offset; | |
7813 | ||
7814 | code = fixp->fx_r_type; | |
7815 | switch (code) | |
7816 | { | |
7817 | case BFD_RELOC_16: | |
7818 | if (fixp->fx_pcrel) | |
7819 | code = BFD_RELOC_16_PCREL; | |
7820 | break; | |
7821 | ||
7822 | case BFD_RELOC_32: | |
7823 | if (fixp->fx_pcrel) | |
7824 | code = BFD_RELOC_32_PCREL; | |
7825 | break; | |
7826 | ||
7827 | case BFD_RELOC_64: | |
7828 | if (fixp->fx_pcrel) | |
7829 | code = BFD_RELOC_64_PCREL; | |
7830 | break; | |
7831 | ||
7832 | default: | |
7833 | break; | |
7834 | } | |
7835 | ||
7836 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
7837 | if (reloc->howto == NULL) | |
7838 | { | |
7839 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
7840 | _ | |
7841 | ("cannot represent %s relocation in this object file format"), | |
7842 | bfd_get_reloc_code_name (code)); | |
7843 | return NULL; | |
7844 | } | |
7845 | ||
7846 | return reloc; | |
7847 | } | |
7848 | ||
7849 | /* This fix_new is called by cons via TC_CONS_FIX_NEW. */ | |
7850 | ||
7851 | void | |
7852 | cons_fix_new_aarch64 (fragS * frag, int where, int size, expressionS * exp) | |
7853 | { | |
7854 | bfd_reloc_code_real_type type; | |
7855 | int pcrel = 0; | |
7856 | ||
7857 | /* Pick a reloc. | |
7858 | FIXME: @@ Should look at CPU word size. */ | |
7859 | switch (size) | |
7860 | { | |
7861 | case 1: | |
7862 | type = BFD_RELOC_8; | |
7863 | break; | |
7864 | case 2: | |
7865 | type = BFD_RELOC_16; | |
7866 | break; | |
7867 | case 4: | |
7868 | type = BFD_RELOC_32; | |
7869 | break; | |
7870 | case 8: | |
7871 | type = BFD_RELOC_64; | |
7872 | break; | |
7873 | default: | |
7874 | as_bad (_("cannot do %u-byte relocation"), size); | |
7875 | type = BFD_RELOC_UNUSED; | |
7876 | break; | |
7877 | } | |
7878 | ||
7879 | fix_new_exp (frag, where, (int) size, exp, pcrel, type); | |
7880 | } | |
7881 | ||
7882 | int | |
7883 | aarch64_force_relocation (struct fix *fixp) | |
7884 | { | |
7885 | switch (fixp->fx_r_type) | |
7886 | { | |
7887 | case BFD_RELOC_AARCH64_GAS_INTERNAL_FIXUP: | |
7888 | /* Perform these "immediate" internal relocations | |
7889 | even if the symbol is extern or weak. */ | |
7890 | return 0; | |
7891 | ||
a6bb11b2 | 7892 | case BFD_RELOC_AARCH64_LD_GOT_LO12_NC: |
f09c556a JW |
7893 | case BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC: |
7894 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC: | |
a6bb11b2 YZ |
7895 | /* Pseudo relocs that need to be fixed up according to |
7896 | ilp32_p. */ | |
7897 | return 0; | |
7898 | ||
2c0a3565 MS |
7899 | case BFD_RELOC_AARCH64_ADD_LO12: |
7900 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: | |
7901 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: | |
7902 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
7903 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
7904 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: | |
3d715ce4 | 7905 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
87f5fbcc | 7906 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
a921b5bd | 7907 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
2c0a3565 MS |
7908 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
7909 | case BFD_RELOC_AARCH64_LDST128_LO12: | |
7910 | case BFD_RELOC_AARCH64_LDST16_LO12: | |
7911 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
7912 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
7913 | case BFD_RELOC_AARCH64_LDST8_LO12: | |
7914 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC: | |
7915 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: | |
389b8029 | 7916 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
2c0a3565 MS |
7917 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
7918 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC: | |
1ada945d | 7919 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
43a357f9 RL |
7920 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
7921 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
a06ea964 | 7922 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
2c0a3565 | 7923 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
3c12b054 | 7924 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
3e8286c0 | 7925 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
1aa66fb1 | 7926 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
a06ea964 | 7927 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
a6bb11b2 | 7928 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
2c0a3565 | 7929 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
043bf05a | 7930 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
3b957e5b RL |
7931 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
7932 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
7933 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12: | |
70151fb5 | 7934 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12: |
13289c10 | 7935 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: |
a12fad50 | 7936 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
1107e076 | 7937 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
6c37fedc | 7938 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
4c562523 JW |
7939 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12: |
7940 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC: | |
7941 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12: | |
7942 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC: | |
7943 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12: | |
7944 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC: | |
7945 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12: | |
7946 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC: | |
49df5539 JW |
7947 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0: |
7948 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: | |
7949 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1: | |
7950 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC: | |
7951 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2: | |
a06ea964 | 7952 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: |
2c0a3565 | 7953 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: |
a06ea964 | 7954 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: |
a06ea964 NC |
7955 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
7956 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC: | |
2c0a3565 MS |
7957 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: |
7958 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC: | |
7959 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: | |
a06ea964 NC |
7960 | /* Always leave these relocations for the linker. */ |
7961 | return 1; | |
7962 | ||
7963 | default: | |
7964 | break; | |
7965 | } | |
7966 | ||
7967 | return generic_force_reloc (fixp); | |
7968 | } | |
7969 | ||
7970 | #ifdef OBJ_ELF | |
7971 | ||
7972 | const char * | |
7973 | elf64_aarch64_target_format (void) | |
7974 | { | |
a75cf613 ES |
7975 | if (strcmp (TARGET_OS, "cloudabi") == 0) |
7976 | { | |
7977 | /* FIXME: What to do for ilp32_p ? */ | |
7978 | return target_big_endian ? "elf64-bigaarch64-cloudabi" : "elf64-littleaarch64-cloudabi"; | |
7979 | } | |
a06ea964 | 7980 | if (target_big_endian) |
cec5225b | 7981 | return ilp32_p ? "elf32-bigaarch64" : "elf64-bigaarch64"; |
a06ea964 | 7982 | else |
cec5225b | 7983 | return ilp32_p ? "elf32-littleaarch64" : "elf64-littleaarch64"; |
a06ea964 NC |
7984 | } |
7985 | ||
7986 | void | |
7987 | aarch64elf_frob_symbol (symbolS * symp, int *puntp) | |
7988 | { | |
7989 | elf_frob_symbol (symp, puntp); | |
7990 | } | |
7991 | #endif | |
7992 | ||
7993 | /* MD interface: Finalization. */ | |
7994 | ||
7995 | /* A good place to do this, although this was probably not intended | |
7996 | for this kind of use. We need to dump the literal pool before | |
7997 | references are made to a null symbol pointer. */ | |
7998 | ||
7999 | void | |
8000 | aarch64_cleanup (void) | |
8001 | { | |
8002 | literal_pool *pool; | |
8003 | ||
8004 | for (pool = list_of_pools; pool; pool = pool->next) | |
8005 | { | |
8006 | /* Put it at the end of the relevant section. */ | |
8007 | subseg_set (pool->section, pool->sub_section); | |
8008 | s_ltorg (0); | |
8009 | } | |
8010 | } | |
8011 | ||
8012 | #ifdef OBJ_ELF | |
8013 | /* Remove any excess mapping symbols generated for alignment frags in | |
8014 | SEC. We may have created a mapping symbol before a zero byte | |
8015 | alignment; remove it if there's a mapping symbol after the | |
8016 | alignment. */ | |
8017 | static void | |
8018 | check_mapping_symbols (bfd * abfd ATTRIBUTE_UNUSED, asection * sec, | |
8019 | void *dummy ATTRIBUTE_UNUSED) | |
8020 | { | |
8021 | segment_info_type *seginfo = seg_info (sec); | |
8022 | fragS *fragp; | |
8023 | ||
8024 | if (seginfo == NULL || seginfo->frchainP == NULL) | |
8025 | return; | |
8026 | ||
8027 | for (fragp = seginfo->frchainP->frch_root; | |
8028 | fragp != NULL; fragp = fragp->fr_next) | |
8029 | { | |
8030 | symbolS *sym = fragp->tc_frag_data.last_map; | |
8031 | fragS *next = fragp->fr_next; | |
8032 | ||
8033 | /* Variable-sized frags have been converted to fixed size by | |
8034 | this point. But if this was variable-sized to start with, | |
8035 | there will be a fixed-size frag after it. So don't handle | |
8036 | next == NULL. */ | |
8037 | if (sym == NULL || next == NULL) | |
8038 | continue; | |
8039 | ||
8040 | if (S_GET_VALUE (sym) < next->fr_address) | |
8041 | /* Not at the end of this frag. */ | |
8042 | continue; | |
8043 | know (S_GET_VALUE (sym) == next->fr_address); | |
8044 | ||
8045 | do | |
8046 | { | |
8047 | if (next->tc_frag_data.first_map != NULL) | |
8048 | { | |
8049 | /* Next frag starts with a mapping symbol. Discard this | |
8050 | one. */ | |
8051 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
8052 | break; | |
8053 | } | |
8054 | ||
8055 | if (next->fr_next == NULL) | |
8056 | { | |
8057 | /* This mapping symbol is at the end of the section. Discard | |
8058 | it. */ | |
8059 | know (next->fr_fix == 0 && next->fr_var == 0); | |
8060 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
8061 | break; | |
8062 | } | |
8063 | ||
8064 | /* As long as we have empty frags without any mapping symbols, | |
8065 | keep looking. */ | |
8066 | /* If the next frag is non-empty and does not start with a | |
8067 | mapping symbol, then this mapping symbol is required. */ | |
8068 | if (next->fr_address != next->fr_next->fr_address) | |
8069 | break; | |
8070 | ||
8071 | next = next->fr_next; | |
8072 | } | |
8073 | while (next != NULL); | |
8074 | } | |
8075 | } | |
8076 | #endif | |
8077 | ||
8078 | /* Adjust the symbol table. */ | |
8079 | ||
8080 | void | |
8081 | aarch64_adjust_symtab (void) | |
8082 | { | |
8083 | #ifdef OBJ_ELF | |
8084 | /* Remove any overlapping mapping symbols generated by alignment frags. */ | |
8085 | bfd_map_over_sections (stdoutput, check_mapping_symbols, (char *) 0); | |
8086 | /* Now do generic ELF adjustments. */ | |
8087 | elf_adjust_symtab (); | |
8088 | #endif | |
8089 | } | |
8090 | ||
8091 | static void | |
8092 | checked_hash_insert (struct hash_control *table, const char *key, void *value) | |
8093 | { | |
8094 | const char *hash_err; | |
8095 | ||
8096 | hash_err = hash_insert (table, key, value); | |
8097 | if (hash_err) | |
8098 | printf ("Internal Error: Can't hash %s\n", key); | |
8099 | } | |
8100 | ||
8101 | static void | |
8102 | fill_instruction_hash_table (void) | |
8103 | { | |
8104 | aarch64_opcode *opcode = aarch64_opcode_table; | |
8105 | ||
8106 | while (opcode->name != NULL) | |
8107 | { | |
8108 | templates *templ, *new_templ; | |
8109 | templ = hash_find (aarch64_ops_hsh, opcode->name); | |
8110 | ||
add39d23 | 8111 | new_templ = XNEW (templates); |
a06ea964 NC |
8112 | new_templ->opcode = opcode; |
8113 | new_templ->next = NULL; | |
8114 | ||
8115 | if (!templ) | |
8116 | checked_hash_insert (aarch64_ops_hsh, opcode->name, (void *) new_templ); | |
8117 | else | |
8118 | { | |
8119 | new_templ->next = templ->next; | |
8120 | templ->next = new_templ; | |
8121 | } | |
8122 | ++opcode; | |
8123 | } | |
8124 | } | |
8125 | ||
8126 | static inline void | |
8127 | convert_to_upper (char *dst, const char *src, size_t num) | |
8128 | { | |
8129 | unsigned int i; | |
8130 | for (i = 0; i < num && *src != '\0'; ++i, ++dst, ++src) | |
8131 | *dst = TOUPPER (*src); | |
8132 | *dst = '\0'; | |
8133 | } | |
8134 | ||
8135 | /* Assume STR point to a lower-case string, allocate, convert and return | |
8136 | the corresponding upper-case string. */ | |
8137 | static inline const char* | |
8138 | get_upper_str (const char *str) | |
8139 | { | |
8140 | char *ret; | |
8141 | size_t len = strlen (str); | |
325801bd | 8142 | ret = XNEWVEC (char, len + 1); |
a06ea964 NC |
8143 | convert_to_upper (ret, str, len); |
8144 | return ret; | |
8145 | } | |
8146 | ||
8147 | /* MD interface: Initialization. */ | |
8148 | ||
8149 | void | |
8150 | md_begin (void) | |
8151 | { | |
8152 | unsigned mach; | |
8153 | unsigned int i; | |
8154 | ||
8155 | if ((aarch64_ops_hsh = hash_new ()) == NULL | |
8156 | || (aarch64_cond_hsh = hash_new ()) == NULL | |
8157 | || (aarch64_shift_hsh = hash_new ()) == NULL | |
8158 | || (aarch64_sys_regs_hsh = hash_new ()) == NULL | |
8159 | || (aarch64_pstatefield_hsh = hash_new ()) == NULL | |
8160 | || (aarch64_sys_regs_ic_hsh = hash_new ()) == NULL | |
8161 | || (aarch64_sys_regs_dc_hsh = hash_new ()) == NULL | |
8162 | || (aarch64_sys_regs_at_hsh = hash_new ()) == NULL | |
8163 | || (aarch64_sys_regs_tlbi_hsh = hash_new ()) == NULL | |
8164 | || (aarch64_reg_hsh = hash_new ()) == NULL | |
8165 | || (aarch64_barrier_opt_hsh = hash_new ()) == NULL | |
8166 | || (aarch64_nzcv_hsh = hash_new ()) == NULL | |
1e6f4800 MW |
8167 | || (aarch64_pldop_hsh = hash_new ()) == NULL |
8168 | || (aarch64_hint_opt_hsh = hash_new ()) == NULL) | |
a06ea964 NC |
8169 | as_fatal (_("virtual memory exhausted")); |
8170 | ||
8171 | fill_instruction_hash_table (); | |
8172 | ||
8173 | for (i = 0; aarch64_sys_regs[i].name != NULL; ++i) | |
8174 | checked_hash_insert (aarch64_sys_regs_hsh, aarch64_sys_regs[i].name, | |
8175 | (void *) (aarch64_sys_regs + i)); | |
8176 | ||
8177 | for (i = 0; aarch64_pstatefields[i].name != NULL; ++i) | |
8178 | checked_hash_insert (aarch64_pstatefield_hsh, | |
8179 | aarch64_pstatefields[i].name, | |
8180 | (void *) (aarch64_pstatefields + i)); | |
8181 | ||
875880c6 | 8182 | for (i = 0; aarch64_sys_regs_ic[i].name != NULL; i++) |
a06ea964 | 8183 | checked_hash_insert (aarch64_sys_regs_ic_hsh, |
875880c6 | 8184 | aarch64_sys_regs_ic[i].name, |
a06ea964 NC |
8185 | (void *) (aarch64_sys_regs_ic + i)); |
8186 | ||
875880c6 | 8187 | for (i = 0; aarch64_sys_regs_dc[i].name != NULL; i++) |
a06ea964 | 8188 | checked_hash_insert (aarch64_sys_regs_dc_hsh, |
875880c6 | 8189 | aarch64_sys_regs_dc[i].name, |
a06ea964 NC |
8190 | (void *) (aarch64_sys_regs_dc + i)); |
8191 | ||
875880c6 | 8192 | for (i = 0; aarch64_sys_regs_at[i].name != NULL; i++) |
a06ea964 | 8193 | checked_hash_insert (aarch64_sys_regs_at_hsh, |
875880c6 | 8194 | aarch64_sys_regs_at[i].name, |
a06ea964 NC |
8195 | (void *) (aarch64_sys_regs_at + i)); |
8196 | ||
875880c6 | 8197 | for (i = 0; aarch64_sys_regs_tlbi[i].name != NULL; i++) |
a06ea964 | 8198 | checked_hash_insert (aarch64_sys_regs_tlbi_hsh, |
875880c6 | 8199 | aarch64_sys_regs_tlbi[i].name, |
a06ea964 NC |
8200 | (void *) (aarch64_sys_regs_tlbi + i)); |
8201 | ||
8202 | for (i = 0; i < ARRAY_SIZE (reg_names); i++) | |
8203 | checked_hash_insert (aarch64_reg_hsh, reg_names[i].name, | |
8204 | (void *) (reg_names + i)); | |
8205 | ||
8206 | for (i = 0; i < ARRAY_SIZE (nzcv_names); i++) | |
8207 | checked_hash_insert (aarch64_nzcv_hsh, nzcv_names[i].template, | |
8208 | (void *) (nzcv_names + i)); | |
8209 | ||
8210 | for (i = 0; aarch64_operand_modifiers[i].name != NULL; i++) | |
8211 | { | |
8212 | const char *name = aarch64_operand_modifiers[i].name; | |
8213 | checked_hash_insert (aarch64_shift_hsh, name, | |
8214 | (void *) (aarch64_operand_modifiers + i)); | |
8215 | /* Also hash the name in the upper case. */ | |
8216 | checked_hash_insert (aarch64_shift_hsh, get_upper_str (name), | |
8217 | (void *) (aarch64_operand_modifiers + i)); | |
8218 | } | |
8219 | ||
8220 | for (i = 0; i < ARRAY_SIZE (aarch64_conds); i++) | |
8221 | { | |
8222 | unsigned int j; | |
8223 | /* A condition code may have alias(es), e.g. "cc", "lo" and "ul" are | |
8224 | the same condition code. */ | |
8225 | for (j = 0; j < ARRAY_SIZE (aarch64_conds[i].names); ++j) | |
8226 | { | |
8227 | const char *name = aarch64_conds[i].names[j]; | |
8228 | if (name == NULL) | |
8229 | break; | |
8230 | checked_hash_insert (aarch64_cond_hsh, name, | |
8231 | (void *) (aarch64_conds + i)); | |
8232 | /* Also hash the name in the upper case. */ | |
8233 | checked_hash_insert (aarch64_cond_hsh, get_upper_str (name), | |
8234 | (void *) (aarch64_conds + i)); | |
8235 | } | |
8236 | } | |
8237 | ||
8238 | for (i = 0; i < ARRAY_SIZE (aarch64_barrier_options); i++) | |
8239 | { | |
8240 | const char *name = aarch64_barrier_options[i].name; | |
8241 | /* Skip xx00 - the unallocated values of option. */ | |
8242 | if ((i & 0x3) == 0) | |
8243 | continue; | |
8244 | checked_hash_insert (aarch64_barrier_opt_hsh, name, | |
8245 | (void *) (aarch64_barrier_options + i)); | |
8246 | /* Also hash the name in the upper case. */ | |
8247 | checked_hash_insert (aarch64_barrier_opt_hsh, get_upper_str (name), | |
8248 | (void *) (aarch64_barrier_options + i)); | |
8249 | } | |
8250 | ||
8251 | for (i = 0; i < ARRAY_SIZE (aarch64_prfops); i++) | |
8252 | { | |
8253 | const char* name = aarch64_prfops[i].name; | |
a1ccaec9 YZ |
8254 | /* Skip the unallocated hint encodings. */ |
8255 | if (name == NULL) | |
a06ea964 NC |
8256 | continue; |
8257 | checked_hash_insert (aarch64_pldop_hsh, name, | |
8258 | (void *) (aarch64_prfops + i)); | |
8259 | /* Also hash the name in the upper case. */ | |
8260 | checked_hash_insert (aarch64_pldop_hsh, get_upper_str (name), | |
8261 | (void *) (aarch64_prfops + i)); | |
8262 | } | |
8263 | ||
1e6f4800 MW |
8264 | for (i = 0; aarch64_hint_options[i].name != NULL; i++) |
8265 | { | |
8266 | const char* name = aarch64_hint_options[i].name; | |
8267 | ||
8268 | checked_hash_insert (aarch64_hint_opt_hsh, name, | |
8269 | (void *) (aarch64_hint_options + i)); | |
8270 | /* Also hash the name in the upper case. */ | |
8271 | checked_hash_insert (aarch64_pldop_hsh, get_upper_str (name), | |
8272 | (void *) (aarch64_hint_options + i)); | |
8273 | } | |
8274 | ||
a06ea964 NC |
8275 | /* Set the cpu variant based on the command-line options. */ |
8276 | if (!mcpu_cpu_opt) | |
8277 | mcpu_cpu_opt = march_cpu_opt; | |
8278 | ||
8279 | if (!mcpu_cpu_opt) | |
8280 | mcpu_cpu_opt = &cpu_default; | |
8281 | ||
8282 | cpu_variant = *mcpu_cpu_opt; | |
8283 | ||
8284 | /* Record the CPU type. */ | |
cec5225b | 8285 | mach = ilp32_p ? bfd_mach_aarch64_ilp32 : bfd_mach_aarch64; |
a06ea964 NC |
8286 | |
8287 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach); | |
8288 | } | |
8289 | ||
8290 | /* Command line processing. */ | |
8291 | ||
8292 | const char *md_shortopts = "m:"; | |
8293 | ||
8294 | #ifdef AARCH64_BI_ENDIAN | |
8295 | #define OPTION_EB (OPTION_MD_BASE + 0) | |
8296 | #define OPTION_EL (OPTION_MD_BASE + 1) | |
8297 | #else | |
8298 | #if TARGET_BYTES_BIG_ENDIAN | |
8299 | #define OPTION_EB (OPTION_MD_BASE + 0) | |
8300 | #else | |
8301 | #define OPTION_EL (OPTION_MD_BASE + 1) | |
8302 | #endif | |
8303 | #endif | |
8304 | ||
8305 | struct option md_longopts[] = { | |
8306 | #ifdef OPTION_EB | |
8307 | {"EB", no_argument, NULL, OPTION_EB}, | |
8308 | #endif | |
8309 | #ifdef OPTION_EL | |
8310 | {"EL", no_argument, NULL, OPTION_EL}, | |
8311 | #endif | |
8312 | {NULL, no_argument, NULL, 0} | |
8313 | }; | |
8314 | ||
8315 | size_t md_longopts_size = sizeof (md_longopts); | |
8316 | ||
8317 | struct aarch64_option_table | |
8318 | { | |
e0471c16 TS |
8319 | const char *option; /* Option name to match. */ |
8320 | const char *help; /* Help information. */ | |
a06ea964 NC |
8321 | int *var; /* Variable to change. */ |
8322 | int value; /* What to change it to. */ | |
8323 | char *deprecated; /* If non-null, print this message. */ | |
8324 | }; | |
8325 | ||
8326 | static struct aarch64_option_table aarch64_opts[] = { | |
8327 | {"mbig-endian", N_("assemble for big-endian"), &target_big_endian, 1, NULL}, | |
8328 | {"mlittle-endian", N_("assemble for little-endian"), &target_big_endian, 0, | |
8329 | NULL}, | |
8330 | #ifdef DEBUG_AARCH64 | |
8331 | {"mdebug-dump", N_("temporary switch for dumping"), &debug_dump, 1, NULL}, | |
8332 | #endif /* DEBUG_AARCH64 */ | |
8333 | {"mverbose-error", N_("output verbose error messages"), &verbose_error_p, 1, | |
8334 | NULL}, | |
a52e6fd3 YZ |
8335 | {"mno-verbose-error", N_("do not output verbose error messages"), |
8336 | &verbose_error_p, 0, NULL}, | |
a06ea964 NC |
8337 | {NULL, NULL, NULL, 0, NULL} |
8338 | }; | |
8339 | ||
8340 | struct aarch64_cpu_option_table | |
8341 | { | |
e0471c16 | 8342 | const char *name; |
a06ea964 NC |
8343 | const aarch64_feature_set value; |
8344 | /* The canonical name of the CPU, or NULL to use NAME converted to upper | |
8345 | case. */ | |
8346 | const char *canonical_name; | |
8347 | }; | |
8348 | ||
8349 | /* This list should, at a minimum, contain all the cpu names | |
8350 | recognized by GCC. */ | |
8351 | static const struct aarch64_cpu_option_table aarch64_cpus[] = { | |
8352 | {"all", AARCH64_ANY, NULL}, | |
9c352f1c JG |
8353 | {"cortex-a35", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8354 | AARCH64_FEATURE_CRC), "Cortex-A35"}, | |
aa31c464 JW |
8355 | {"cortex-a53", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8356 | AARCH64_FEATURE_CRC), "Cortex-A53"}, | |
8357 | {"cortex-a57", AARCH64_FEATURE (AARCH64_ARCH_V8, | |
8358 | AARCH64_FEATURE_CRC), "Cortex-A57"}, | |
2abdd192 JW |
8359 | {"cortex-a72", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8360 | AARCH64_FEATURE_CRC), "Cortex-A72"}, | |
1aa70332 KT |
8361 | {"cortex-a73", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8362 | AARCH64_FEATURE_CRC), "Cortex-A73"}, | |
2412d878 EM |
8363 | {"exynos-m1", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8364 | AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO), | |
8365 | "Samsung Exynos M1"}, | |
2fe9c2a0 SP |
8366 | {"falkor", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8367 | AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO), | |
8368 | "Qualcomm Falkor"}, | |
6b21c2bf JW |
8369 | {"qdf24xx", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8370 | AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO), | |
8371 | "Qualcomm QDF24XX"}, | |
faade851 JW |
8372 | {"thunderx", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8373 | AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO), | |
8374 | "Cavium ThunderX"}, | |
9f99c22e VP |
8375 | {"vulcan", AARCH64_FEATURE (AARCH64_ARCH_V8_1, |
8376 | AARCH64_FEATURE_CRYPTO), | |
0a8be2fe | 8377 | "Broadcom Vulcan"}, |
070cb956 PT |
8378 | /* The 'xgene-1' name is an older name for 'xgene1', which was used |
8379 | in earlier releases and is superseded by 'xgene1' in all | |
8380 | tools. */ | |
9877c63c | 8381 | {"xgene-1", AARCH64_ARCH_V8, "APM X-Gene 1"}, |
070cb956 | 8382 | {"xgene1", AARCH64_ARCH_V8, "APM X-Gene 1"}, |
aa31c464 JW |
8383 | {"xgene2", AARCH64_FEATURE (AARCH64_ARCH_V8, |
8384 | AARCH64_FEATURE_CRC), "APM X-Gene 2"}, | |
a06ea964 NC |
8385 | {"generic", AARCH64_ARCH_V8, NULL}, |
8386 | ||
a06ea964 NC |
8387 | {NULL, AARCH64_ARCH_NONE, NULL} |
8388 | }; | |
8389 | ||
8390 | struct aarch64_arch_option_table | |
8391 | { | |
e0471c16 | 8392 | const char *name; |
a06ea964 NC |
8393 | const aarch64_feature_set value; |
8394 | }; | |
8395 | ||
8396 | /* This list should, at a minimum, contain all the architecture names | |
8397 | recognized by GCC. */ | |
8398 | static const struct aarch64_arch_option_table aarch64_archs[] = { | |
8399 | {"all", AARCH64_ANY}, | |
5a1ad39d | 8400 | {"armv8-a", AARCH64_ARCH_V8}, |
88f0ea34 | 8401 | {"armv8.1-a", AARCH64_ARCH_V8_1}, |
acb787b0 | 8402 | {"armv8.2-a", AARCH64_ARCH_V8_2}, |
1924ff75 | 8403 | {"armv8.3-a", AARCH64_ARCH_V8_3}, |
a06ea964 NC |
8404 | {NULL, AARCH64_ARCH_NONE} |
8405 | }; | |
8406 | ||
8407 | /* ISA extensions. */ | |
8408 | struct aarch64_option_cpu_value_table | |
8409 | { | |
e0471c16 | 8410 | const char *name; |
a06ea964 | 8411 | const aarch64_feature_set value; |
93d8990c | 8412 | const aarch64_feature_set require; /* Feature dependencies. */ |
a06ea964 NC |
8413 | }; |
8414 | ||
8415 | static const struct aarch64_option_cpu_value_table aarch64_features[] = { | |
93d8990c SN |
8416 | {"crc", AARCH64_FEATURE (AARCH64_FEATURE_CRC, 0), |
8417 | AARCH64_ARCH_NONE}, | |
8418 | {"crypto", AARCH64_FEATURE (AARCH64_FEATURE_CRYPTO, 0), | |
fa09f4ea | 8419 | AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0)}, |
93d8990c SN |
8420 | {"fp", AARCH64_FEATURE (AARCH64_FEATURE_FP, 0), |
8421 | AARCH64_ARCH_NONE}, | |
8422 | {"lse", AARCH64_FEATURE (AARCH64_FEATURE_LSE, 0), | |
8423 | AARCH64_ARCH_NONE}, | |
8424 | {"simd", AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0), | |
fa09f4ea | 8425 | AARCH64_FEATURE (AARCH64_FEATURE_FP, 0)}, |
93d8990c SN |
8426 | {"pan", AARCH64_FEATURE (AARCH64_FEATURE_PAN, 0), |
8427 | AARCH64_ARCH_NONE}, | |
8428 | {"lor", AARCH64_FEATURE (AARCH64_FEATURE_LOR, 0), | |
8429 | AARCH64_ARCH_NONE}, | |
8430 | {"ras", AARCH64_FEATURE (AARCH64_FEATURE_RAS, 0), | |
8431 | AARCH64_ARCH_NONE}, | |
8432 | {"rdma", AARCH64_FEATURE (AARCH64_FEATURE_RDMA, 0), | |
8433 | AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0)}, | |
8434 | {"fp16", AARCH64_FEATURE (AARCH64_FEATURE_F16, 0), | |
8435 | AARCH64_FEATURE (AARCH64_FEATURE_FP, 0)}, | |
8436 | {"profile", AARCH64_FEATURE (AARCH64_FEATURE_PROFILE, 0), | |
8437 | AARCH64_ARCH_NONE}, | |
c0890d26 RS |
8438 | {"sve", AARCH64_FEATURE (AARCH64_FEATURE_SVE, 0), |
8439 | AARCH64_FEATURE (AARCH64_FEATURE_FP | |
8440 | | AARCH64_FEATURE_SIMD, 0)}, | |
d74d4880 SN |
8441 | {"rcpc", AARCH64_FEATURE (AARCH64_FEATURE_RCPC, 0), |
8442 | AARCH64_ARCH_NONE}, | |
93d8990c | 8443 | {NULL, AARCH64_ARCH_NONE, AARCH64_ARCH_NONE}, |
a06ea964 NC |
8444 | }; |
8445 | ||
8446 | struct aarch64_long_option_table | |
8447 | { | |
e0471c16 TS |
8448 | const char *option; /* Substring to match. */ |
8449 | const char *help; /* Help information. */ | |
17b9d67d | 8450 | int (*func) (const char *subopt); /* Function to decode sub-option. */ |
a06ea964 NC |
8451 | char *deprecated; /* If non-null, print this message. */ |
8452 | }; | |
8453 | ||
93d8990c SN |
8454 | /* Transitive closure of features depending on set. */ |
8455 | static aarch64_feature_set | |
8456 | aarch64_feature_disable_set (aarch64_feature_set set) | |
8457 | { | |
8458 | const struct aarch64_option_cpu_value_table *opt; | |
8459 | aarch64_feature_set prev = 0; | |
8460 | ||
8461 | while (prev != set) { | |
8462 | prev = set; | |
8463 | for (opt = aarch64_features; opt->name != NULL; opt++) | |
8464 | if (AARCH64_CPU_HAS_ANY_FEATURES (opt->require, set)) | |
8465 | AARCH64_MERGE_FEATURE_SETS (set, set, opt->value); | |
8466 | } | |
8467 | return set; | |
8468 | } | |
8469 | ||
8470 | /* Transitive closure of dependencies of set. */ | |
8471 | static aarch64_feature_set | |
8472 | aarch64_feature_enable_set (aarch64_feature_set set) | |
8473 | { | |
8474 | const struct aarch64_option_cpu_value_table *opt; | |
8475 | aarch64_feature_set prev = 0; | |
8476 | ||
8477 | while (prev != set) { | |
8478 | prev = set; | |
8479 | for (opt = aarch64_features; opt->name != NULL; opt++) | |
8480 | if (AARCH64_CPU_HAS_FEATURE (set, opt->value)) | |
8481 | AARCH64_MERGE_FEATURE_SETS (set, set, opt->require); | |
8482 | } | |
8483 | return set; | |
8484 | } | |
8485 | ||
a06ea964 | 8486 | static int |
82b8a785 | 8487 | aarch64_parse_features (const char *str, const aarch64_feature_set **opt_p, |
ae527cd8 | 8488 | bfd_boolean ext_only) |
a06ea964 NC |
8489 | { |
8490 | /* We insist on extensions being added before being removed. We achieve | |
8491 | this by using the ADDING_VALUE variable to indicate whether we are | |
8492 | adding an extension (1) or removing it (0) and only allowing it to | |
8493 | change in the order -1 -> 1 -> 0. */ | |
8494 | int adding_value = -1; | |
325801bd | 8495 | aarch64_feature_set *ext_set = XNEW (aarch64_feature_set); |
a06ea964 NC |
8496 | |
8497 | /* Copy the feature set, so that we can modify it. */ | |
8498 | *ext_set = **opt_p; | |
8499 | *opt_p = ext_set; | |
8500 | ||
8501 | while (str != NULL && *str != 0) | |
8502 | { | |
8503 | const struct aarch64_option_cpu_value_table *opt; | |
82b8a785 | 8504 | const char *ext = NULL; |
a06ea964 NC |
8505 | int optlen; |
8506 | ||
ae527cd8 | 8507 | if (!ext_only) |
a06ea964 | 8508 | { |
ae527cd8 JB |
8509 | if (*str != '+') |
8510 | { | |
8511 | as_bad (_("invalid architectural extension")); | |
8512 | return 0; | |
8513 | } | |
a06ea964 | 8514 | |
ae527cd8 JB |
8515 | ext = strchr (++str, '+'); |
8516 | } | |
a06ea964 NC |
8517 | |
8518 | if (ext != NULL) | |
8519 | optlen = ext - str; | |
8520 | else | |
8521 | optlen = strlen (str); | |
8522 | ||
8523 | if (optlen >= 2 && strncmp (str, "no", 2) == 0) | |
8524 | { | |
8525 | if (adding_value != 0) | |
8526 | adding_value = 0; | |
8527 | optlen -= 2; | |
8528 | str += 2; | |
8529 | } | |
8530 | else if (optlen > 0) | |
8531 | { | |
8532 | if (adding_value == -1) | |
8533 | adding_value = 1; | |
8534 | else if (adding_value != 1) | |
8535 | { | |
8536 | as_bad (_("must specify extensions to add before specifying " | |
8537 | "those to remove")); | |
8538 | return FALSE; | |
8539 | } | |
8540 | } | |
8541 | ||
8542 | if (optlen == 0) | |
8543 | { | |
8544 | as_bad (_("missing architectural extension")); | |
8545 | return 0; | |
8546 | } | |
8547 | ||
8548 | gas_assert (adding_value != -1); | |
8549 | ||
8550 | for (opt = aarch64_features; opt->name != NULL; opt++) | |
8551 | if (strncmp (opt->name, str, optlen) == 0) | |
8552 | { | |
93d8990c SN |
8553 | aarch64_feature_set set; |
8554 | ||
a06ea964 NC |
8555 | /* Add or remove the extension. */ |
8556 | if (adding_value) | |
93d8990c SN |
8557 | { |
8558 | set = aarch64_feature_enable_set (opt->value); | |
8559 | AARCH64_MERGE_FEATURE_SETS (*ext_set, *ext_set, set); | |
8560 | } | |
a06ea964 | 8561 | else |
93d8990c SN |
8562 | { |
8563 | set = aarch64_feature_disable_set (opt->value); | |
8564 | AARCH64_CLEAR_FEATURE (*ext_set, *ext_set, set); | |
8565 | } | |
a06ea964 NC |
8566 | break; |
8567 | } | |
8568 | ||
8569 | if (opt->name == NULL) | |
8570 | { | |
8571 | as_bad (_("unknown architectural extension `%s'"), str); | |
8572 | return 0; | |
8573 | } | |
8574 | ||
8575 | str = ext; | |
8576 | }; | |
8577 | ||
8578 | return 1; | |
8579 | } | |
8580 | ||
8581 | static int | |
17b9d67d | 8582 | aarch64_parse_cpu (const char *str) |
a06ea964 NC |
8583 | { |
8584 | const struct aarch64_cpu_option_table *opt; | |
82b8a785 | 8585 | const char *ext = strchr (str, '+'); |
a06ea964 NC |
8586 | size_t optlen; |
8587 | ||
8588 | if (ext != NULL) | |
8589 | optlen = ext - str; | |
8590 | else | |
8591 | optlen = strlen (str); | |
8592 | ||
8593 | if (optlen == 0) | |
8594 | { | |
8595 | as_bad (_("missing cpu name `%s'"), str); | |
8596 | return 0; | |
8597 | } | |
8598 | ||
8599 | for (opt = aarch64_cpus; opt->name != NULL; opt++) | |
8600 | if (strlen (opt->name) == optlen && strncmp (str, opt->name, optlen) == 0) | |
8601 | { | |
8602 | mcpu_cpu_opt = &opt->value; | |
8603 | if (ext != NULL) | |
ae527cd8 | 8604 | return aarch64_parse_features (ext, &mcpu_cpu_opt, FALSE); |
a06ea964 NC |
8605 | |
8606 | return 1; | |
8607 | } | |
8608 | ||
8609 | as_bad (_("unknown cpu `%s'"), str); | |
8610 | return 0; | |
8611 | } | |
8612 | ||
8613 | static int | |
17b9d67d | 8614 | aarch64_parse_arch (const char *str) |
a06ea964 NC |
8615 | { |
8616 | const struct aarch64_arch_option_table *opt; | |
82b8a785 | 8617 | const char *ext = strchr (str, '+'); |
a06ea964 NC |
8618 | size_t optlen; |
8619 | ||
8620 | if (ext != NULL) | |
8621 | optlen = ext - str; | |
8622 | else | |
8623 | optlen = strlen (str); | |
8624 | ||
8625 | if (optlen == 0) | |
8626 | { | |
8627 | as_bad (_("missing architecture name `%s'"), str); | |
8628 | return 0; | |
8629 | } | |
8630 | ||
8631 | for (opt = aarch64_archs; opt->name != NULL; opt++) | |
8632 | if (strlen (opt->name) == optlen && strncmp (str, opt->name, optlen) == 0) | |
8633 | { | |
8634 | march_cpu_opt = &opt->value; | |
8635 | if (ext != NULL) | |
ae527cd8 | 8636 | return aarch64_parse_features (ext, &march_cpu_opt, FALSE); |
a06ea964 NC |
8637 | |
8638 | return 1; | |
8639 | } | |
8640 | ||
8641 | as_bad (_("unknown architecture `%s'\n"), str); | |
8642 | return 0; | |
8643 | } | |
8644 | ||
69091a2c YZ |
8645 | /* ABIs. */ |
8646 | struct aarch64_option_abi_value_table | |
8647 | { | |
e0471c16 | 8648 | const char *name; |
69091a2c YZ |
8649 | enum aarch64_abi_type value; |
8650 | }; | |
8651 | ||
8652 | static const struct aarch64_option_abi_value_table aarch64_abis[] = { | |
8653 | {"ilp32", AARCH64_ABI_ILP32}, | |
8654 | {"lp64", AARCH64_ABI_LP64}, | |
69091a2c YZ |
8655 | }; |
8656 | ||
8657 | static int | |
17b9d67d | 8658 | aarch64_parse_abi (const char *str) |
69091a2c | 8659 | { |
5703197e | 8660 | unsigned int i; |
69091a2c | 8661 | |
5703197e | 8662 | if (str[0] == '\0') |
69091a2c YZ |
8663 | { |
8664 | as_bad (_("missing abi name `%s'"), str); | |
8665 | return 0; | |
8666 | } | |
8667 | ||
5703197e TS |
8668 | for (i = 0; i < ARRAY_SIZE (aarch64_abis); i++) |
8669 | if (strcmp (str, aarch64_abis[i].name) == 0) | |
69091a2c | 8670 | { |
5703197e | 8671 | aarch64_abi = aarch64_abis[i].value; |
69091a2c YZ |
8672 | return 1; |
8673 | } | |
8674 | ||
8675 | as_bad (_("unknown abi `%s'\n"), str); | |
8676 | return 0; | |
8677 | } | |
8678 | ||
a06ea964 | 8679 | static struct aarch64_long_option_table aarch64_long_opts[] = { |
69091a2c YZ |
8680 | #ifdef OBJ_ELF |
8681 | {"mabi=", N_("<abi name>\t specify for ABI <abi name>"), | |
8682 | aarch64_parse_abi, NULL}, | |
8683 | #endif /* OBJ_ELF */ | |
a06ea964 NC |
8684 | {"mcpu=", N_("<cpu name>\t assemble for CPU <cpu name>"), |
8685 | aarch64_parse_cpu, NULL}, | |
8686 | {"march=", N_("<arch name>\t assemble for architecture <arch name>"), | |
8687 | aarch64_parse_arch, NULL}, | |
8688 | {NULL, NULL, 0, NULL} | |
8689 | }; | |
8690 | ||
8691 | int | |
17b9d67d | 8692 | md_parse_option (int c, const char *arg) |
a06ea964 NC |
8693 | { |
8694 | struct aarch64_option_table *opt; | |
8695 | struct aarch64_long_option_table *lopt; | |
8696 | ||
8697 | switch (c) | |
8698 | { | |
8699 | #ifdef OPTION_EB | |
8700 | case OPTION_EB: | |
8701 | target_big_endian = 1; | |
8702 | break; | |
8703 | #endif | |
8704 | ||
8705 | #ifdef OPTION_EL | |
8706 | case OPTION_EL: | |
8707 | target_big_endian = 0; | |
8708 | break; | |
8709 | #endif | |
8710 | ||
8711 | case 'a': | |
8712 | /* Listing option. Just ignore these, we don't support additional | |
8713 | ones. */ | |
8714 | return 0; | |
8715 | ||
8716 | default: | |
8717 | for (opt = aarch64_opts; opt->option != NULL; opt++) | |
8718 | { | |
8719 | if (c == opt->option[0] | |
8720 | && ((arg == NULL && opt->option[1] == 0) | |
8721 | || streq (arg, opt->option + 1))) | |
8722 | { | |
8723 | /* If the option is deprecated, tell the user. */ | |
8724 | if (opt->deprecated != NULL) | |
8725 | as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, | |
8726 | arg ? arg : "", _(opt->deprecated)); | |
8727 | ||
8728 | if (opt->var != NULL) | |
8729 | *opt->var = opt->value; | |
8730 | ||
8731 | return 1; | |
8732 | } | |
8733 | } | |
8734 | ||
8735 | for (lopt = aarch64_long_opts; lopt->option != NULL; lopt++) | |
8736 | { | |
8737 | /* These options are expected to have an argument. */ | |
8738 | if (c == lopt->option[0] | |
8739 | && arg != NULL | |
8740 | && strncmp (arg, lopt->option + 1, | |
8741 | strlen (lopt->option + 1)) == 0) | |
8742 | { | |
8743 | /* If the option is deprecated, tell the user. */ | |
8744 | if (lopt->deprecated != NULL) | |
8745 | as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, arg, | |
8746 | _(lopt->deprecated)); | |
8747 | ||
8748 | /* Call the sup-option parser. */ | |
8749 | return lopt->func (arg + strlen (lopt->option) - 1); | |
8750 | } | |
8751 | } | |
8752 | ||
8753 | return 0; | |
8754 | } | |
8755 | ||
8756 | return 1; | |
8757 | } | |
8758 | ||
8759 | void | |
8760 | md_show_usage (FILE * fp) | |
8761 | { | |
8762 | struct aarch64_option_table *opt; | |
8763 | struct aarch64_long_option_table *lopt; | |
8764 | ||
8765 | fprintf (fp, _(" AArch64-specific assembler options:\n")); | |
8766 | ||
8767 | for (opt = aarch64_opts; opt->option != NULL; opt++) | |
8768 | if (opt->help != NULL) | |
8769 | fprintf (fp, " -%-23s%s\n", opt->option, _(opt->help)); | |
8770 | ||
8771 | for (lopt = aarch64_long_opts; lopt->option != NULL; lopt++) | |
8772 | if (lopt->help != NULL) | |
8773 | fprintf (fp, " -%s%s\n", lopt->option, _(lopt->help)); | |
8774 | ||
8775 | #ifdef OPTION_EB | |
8776 | fprintf (fp, _("\ | |
8777 | -EB assemble code for a big-endian cpu\n")); | |
8778 | #endif | |
8779 | ||
8780 | #ifdef OPTION_EL | |
8781 | fprintf (fp, _("\ | |
8782 | -EL assemble code for a little-endian cpu\n")); | |
8783 | #endif | |
8784 | } | |
8785 | ||
8786 | /* Parse a .cpu directive. */ | |
8787 | ||
8788 | static void | |
8789 | s_aarch64_cpu (int ignored ATTRIBUTE_UNUSED) | |
8790 | { | |
8791 | const struct aarch64_cpu_option_table *opt; | |
8792 | char saved_char; | |
8793 | char *name; | |
8794 | char *ext; | |
8795 | size_t optlen; | |
8796 | ||
8797 | name = input_line_pointer; | |
8798 | while (*input_line_pointer && !ISSPACE (*input_line_pointer)) | |
8799 | input_line_pointer++; | |
8800 | saved_char = *input_line_pointer; | |
8801 | *input_line_pointer = 0; | |
8802 | ||
8803 | ext = strchr (name, '+'); | |
8804 | ||
8805 | if (ext != NULL) | |
8806 | optlen = ext - name; | |
8807 | else | |
8808 | optlen = strlen (name); | |
8809 | ||
8810 | /* Skip the first "all" entry. */ | |
8811 | for (opt = aarch64_cpus + 1; opt->name != NULL; opt++) | |
8812 | if (strlen (opt->name) == optlen | |
8813 | && strncmp (name, opt->name, optlen) == 0) | |
8814 | { | |
8815 | mcpu_cpu_opt = &opt->value; | |
8816 | if (ext != NULL) | |
ae527cd8 | 8817 | if (!aarch64_parse_features (ext, &mcpu_cpu_opt, FALSE)) |
a06ea964 NC |
8818 | return; |
8819 | ||
8820 | cpu_variant = *mcpu_cpu_opt; | |
8821 | ||
8822 | *input_line_pointer = saved_char; | |
8823 | demand_empty_rest_of_line (); | |
8824 | return; | |
8825 | } | |
8826 | as_bad (_("unknown cpu `%s'"), name); | |
8827 | *input_line_pointer = saved_char; | |
8828 | ignore_rest_of_line (); | |
8829 | } | |
8830 | ||
8831 | ||
8832 | /* Parse a .arch directive. */ | |
8833 | ||
8834 | static void | |
8835 | s_aarch64_arch (int ignored ATTRIBUTE_UNUSED) | |
8836 | { | |
8837 | const struct aarch64_arch_option_table *opt; | |
8838 | char saved_char; | |
8839 | char *name; | |
8840 | char *ext; | |
8841 | size_t optlen; | |
8842 | ||
8843 | name = input_line_pointer; | |
8844 | while (*input_line_pointer && !ISSPACE (*input_line_pointer)) | |
8845 | input_line_pointer++; | |
8846 | saved_char = *input_line_pointer; | |
8847 | *input_line_pointer = 0; | |
8848 | ||
8849 | ext = strchr (name, '+'); | |
8850 | ||
8851 | if (ext != NULL) | |
8852 | optlen = ext - name; | |
8853 | else | |
8854 | optlen = strlen (name); | |
8855 | ||
8856 | /* Skip the first "all" entry. */ | |
8857 | for (opt = aarch64_archs + 1; opt->name != NULL; opt++) | |
8858 | if (strlen (opt->name) == optlen | |
8859 | && strncmp (name, opt->name, optlen) == 0) | |
8860 | { | |
8861 | mcpu_cpu_opt = &opt->value; | |
8862 | if (ext != NULL) | |
ae527cd8 | 8863 | if (!aarch64_parse_features (ext, &mcpu_cpu_opt, FALSE)) |
a06ea964 NC |
8864 | return; |
8865 | ||
8866 | cpu_variant = *mcpu_cpu_opt; | |
8867 | ||
8868 | *input_line_pointer = saved_char; | |
8869 | demand_empty_rest_of_line (); | |
8870 | return; | |
8871 | } | |
8872 | ||
8873 | as_bad (_("unknown architecture `%s'\n"), name); | |
8874 | *input_line_pointer = saved_char; | |
8875 | ignore_rest_of_line (); | |
8876 | } | |
8877 | ||
ae527cd8 JB |
8878 | /* Parse a .arch_extension directive. */ |
8879 | ||
8880 | static void | |
8881 | s_aarch64_arch_extension (int ignored ATTRIBUTE_UNUSED) | |
8882 | { | |
8883 | char saved_char; | |
8884 | char *ext = input_line_pointer;; | |
8885 | ||
8886 | while (*input_line_pointer && !ISSPACE (*input_line_pointer)) | |
8887 | input_line_pointer++; | |
8888 | saved_char = *input_line_pointer; | |
8889 | *input_line_pointer = 0; | |
8890 | ||
8891 | if (!aarch64_parse_features (ext, &mcpu_cpu_opt, TRUE)) | |
8892 | return; | |
8893 | ||
8894 | cpu_variant = *mcpu_cpu_opt; | |
8895 | ||
8896 | *input_line_pointer = saved_char; | |
8897 | demand_empty_rest_of_line (); | |
8898 | } | |
8899 | ||
a06ea964 NC |
8900 | /* Copy symbol information. */ |
8901 | ||
8902 | void | |
8903 | aarch64_copy_symbol_attributes (symbolS * dest, symbolS * src) | |
8904 | { | |
8905 | AARCH64_GET_FLAG (dest) = AARCH64_GET_FLAG (src); | |
8906 | } |