Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-arc.c -- Assembler for the ARC |
6f2750fe | 2 | Copyright (C) 1994-2016 Free Software Foundation, Inc. |
886a2506 NC |
3 | |
4 | Contributor: Claudiu Zissulescu <claziss@synopsys.com> | |
252b5132 RH |
5 | |
6 | This file is part of GAS, the GNU Assembler. | |
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 | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
11 | 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 | |
19203624 | 19 | along with GAS; see the file COPYING. If not, write to the Free |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "as.h" |
886a2506 | 24 | #include "subsegs.h" |
a161fe53 | 25 | #include "struc-symbol.h" |
886a2506 | 26 | #include "dwarf2dbg.h" |
726c18e1 | 27 | #include "dw2gencfi.h" |
3882b010 | 28 | #include "safe-ctype.h" |
886a2506 | 29 | |
252b5132 RH |
30 | #include "opcode/arc.h" |
31 | #include "elf/arc.h" | |
b99747ae | 32 | #include "../opcodes/arc-ext.h" |
252b5132 | 33 | |
886a2506 | 34 | /* Defines section. */ |
0d2bcfaf | 35 | |
886a2506 NC |
36 | #define MAX_INSN_FIXUPS 2 |
37 | #define MAX_CONSTR_STR 20 | |
4670103e | 38 | #define FRAG_MAX_GROWTH 8 |
0d2bcfaf | 39 | |
886a2506 NC |
40 | #ifdef DEBUG |
41 | # define pr_debug(fmt, args...) fprintf (stderr, fmt, ##args) | |
42 | #else | |
43 | # define pr_debug(fmt, args...) | |
44 | #endif | |
45 | ||
46 | #define MAJOR_OPCODE(x) (((x) & 0xF8000000) >> 27) | |
47 | #define SUB_OPCODE(x) (((x) & 0x003F0000) >> 16) | |
db18dbab GM |
48 | #define LP_INSN(x) ((MAJOR_OPCODE (x) == 0x4) \ |
49 | && (SUB_OPCODE (x) == 0x28)) | |
886a2506 NC |
50 | |
51 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
52 | #define MAX_LITTLENUMS 6 | |
53 | ||
9004b6bd AB |
54 | #ifndef TARGET_WITH_CPU |
55 | #define TARGET_WITH_CPU "arc700" | |
56 | #endif /* TARGET_WITH_CPU */ | |
57 | ||
4670103e CZ |
58 | /* Enum used to enumerate the relaxable ins operands. */ |
59 | enum rlx_operand_type | |
60 | { | |
61 | EMPTY = 0, | |
62 | REGISTER, | |
63 | REGISTER_S, /* Register for short instruction(s). */ | |
64 | REGISTER_NO_GP, /* Is a register but not gp register specifically. */ | |
65 | REGISTER_DUP, /* Duplication of previous operand of type register. */ | |
66 | IMMEDIATE, | |
67 | BRACKET | |
68 | }; | |
69 | ||
70 | enum arc_rlx_types | |
71 | { | |
72 | ARC_RLX_NONE = 0, | |
73 | ARC_RLX_BL_S, | |
74 | ARC_RLX_BL, | |
75 | ARC_RLX_B_S, | |
76 | ARC_RLX_B, | |
77 | ARC_RLX_ADD_U3, | |
78 | ARC_RLX_ADD_U6, | |
79 | ARC_RLX_ADD_LIMM, | |
80 | ARC_RLX_LD_U7, | |
81 | ARC_RLX_LD_S9, | |
82 | ARC_RLX_LD_LIMM, | |
83 | ARC_RLX_MOV_U8, | |
84 | ARC_RLX_MOV_S12, | |
85 | ARC_RLX_MOV_LIMM, | |
86 | ARC_RLX_SUB_U3, | |
87 | ARC_RLX_SUB_U6, | |
88 | ARC_RLX_SUB_LIMM, | |
89 | ARC_RLX_MPY_U6, | |
90 | ARC_RLX_MPY_LIMM, | |
91 | ARC_RLX_MOV_RU6, | |
92 | ARC_RLX_MOV_RLIMM, | |
93 | ARC_RLX_ADD_RRU6, | |
94 | ARC_RLX_ADD_RRLIMM, | |
95 | }; | |
96 | ||
886a2506 NC |
97 | /* Macros section. */ |
98 | ||
99 | #define regno(x) ((x) & 0x3F) | |
100 | #define is_ir_num(x) (((x) & ~0x3F) == 0) | |
8ddf6b2a CZ |
101 | #define is_code_density_p(sc) (((sc) == CD1 || (sc) == CD2)) |
102 | #define is_spfp_p(op) (((sc) == SPX)) | |
103 | #define is_dpfp_p(op) (((sc) == DPX)) | |
104 | #define is_fpuda_p(op) (((sc) == DPA)) | |
db18dbab GM |
105 | #define is_br_jmp_insn_p(op) (((op)->insn_class == BRANCH \ |
106 | || (op)->insn_class == JUMP)) | |
c810e0b8 | 107 | #define is_kernel_insn_p(op) (((op)->insn_class == KERNEL)) |
bdd582db | 108 | #define is_nps400_p(op) (((sc) == NPS400)) |
0d2bcfaf | 109 | |
886a2506 NC |
110 | /* Generic assembler global variables which must be defined by all |
111 | targets. */ | |
0d2bcfaf | 112 | |
886a2506 | 113 | /* Characters which always start a comment. */ |
252b5132 RH |
114 | const char comment_chars[] = "#;"; |
115 | ||
886a2506 | 116 | /* Characters which start a comment at the beginning of a line. */ |
252b5132 RH |
117 | const char line_comment_chars[] = "#"; |
118 | ||
886a2506 NC |
119 | /* Characters which may be used to separate multiple commands on a |
120 | single line. */ | |
121 | const char line_separator_chars[] = "`"; | |
252b5132 | 122 | |
886a2506 NC |
123 | /* Characters which are used to indicate an exponent in a floating |
124 | point number. */ | |
252b5132 RH |
125 | const char EXP_CHARS[] = "eE"; |
126 | ||
bcee8eb8 AM |
127 | /* Chars that mean this number is a floating point constant |
128 | As in 0f12.456 or 0d1.2345e12. */ | |
252b5132 RH |
129 | const char FLT_CHARS[] = "rRsSfFdD"; |
130 | ||
131 | /* Byte order. */ | |
132 | extern int target_big_endian; | |
133 | const char *arc_target_format = DEFAULT_TARGET_FORMAT; | |
134 | static int byte_order = DEFAULT_BYTE_ORDER; | |
135 | ||
b99747ae CZ |
136 | /* Arc extension section. */ |
137 | static segT arcext_section; | |
138 | ||
4670103e CZ |
139 | /* By default relaxation is disabled. */ |
140 | static int relaxation_state = 0; | |
141 | ||
886a2506 | 142 | extern int arc_get_mach (char *); |
0d2bcfaf | 143 | |
4670103e | 144 | /* Forward declarations. */ |
886a2506 NC |
145 | static void arc_lcomm (int); |
146 | static void arc_option (int); | |
147 | static void arc_extra_reloc (int); | |
b99747ae | 148 | static void arc_extinsn (int); |
f36e33da | 149 | static void arc_extcorereg (int); |
4670103e | 150 | |
886a2506 | 151 | const pseudo_typeS md_pseudo_table[] = |
6f4b1afc CM |
152 | { |
153 | /* Make sure that .word is 32 bits. */ | |
154 | { "word", cons, 4 }, | |
886a2506 | 155 | |
6f4b1afc CM |
156 | { "align", s_align_bytes, 0 }, /* Defaulting is invalid (0). */ |
157 | { "lcomm", arc_lcomm, 0 }, | |
158 | { "lcommon", arc_lcomm, 0 }, | |
159 | { "cpu", arc_option, 0 }, | |
252b5132 | 160 | |
f36e33da CZ |
161 | { "extinstruction", arc_extinsn, 0 }, |
162 | { "extcoreregister", arc_extcorereg, EXT_CORE_REGISTER }, | |
163 | { "extauxregister", arc_extcorereg, EXT_AUX_REGISTER }, | |
164 | { "extcondcode", arc_extcorereg, EXT_COND_CODE }, | |
b99747ae | 165 | |
6f4b1afc CM |
166 | { "tls_gd_ld", arc_extra_reloc, BFD_RELOC_ARC_TLS_GD_LD }, |
167 | { "tls_gd_call", arc_extra_reloc, BFD_RELOC_ARC_TLS_GD_CALL }, | |
886a2506 | 168 | |
6f4b1afc CM |
169 | { NULL, NULL, 0 } |
170 | }; | |
252b5132 | 171 | |
252b5132 | 172 | const char *md_shortopts = ""; |
ea1562b3 NC |
173 | |
174 | enum options | |
6f4b1afc CM |
175 | { |
176 | OPTION_EB = OPTION_MD_BASE, | |
177 | OPTION_EL, | |
178 | ||
179 | OPTION_ARC600, | |
180 | OPTION_ARC601, | |
181 | OPTION_ARC700, | |
182 | OPTION_ARCEM, | |
183 | OPTION_ARCHS, | |
184 | ||
185 | OPTION_MCPU, | |
186 | OPTION_CD, | |
4670103e | 187 | OPTION_RELAX, |
bdd582db | 188 | OPTION_NPS400, |
6f4b1afc | 189 | |
ce440d63 GM |
190 | OPTION_SPFP, |
191 | OPTION_DPFP, | |
192 | OPTION_FPUDA, | |
193 | ||
6f4b1afc CM |
194 | /* The following options are deprecated and provided here only for |
195 | compatibility reasons. */ | |
196 | OPTION_USER_MODE, | |
197 | OPTION_LD_EXT_MASK, | |
198 | OPTION_SWAP, | |
199 | OPTION_NORM, | |
200 | OPTION_BARREL_SHIFT, | |
201 | OPTION_MIN_MAX, | |
202 | OPTION_NO_MPY, | |
203 | OPTION_EA, | |
204 | OPTION_MUL64, | |
205 | OPTION_SIMD, | |
6f4b1afc CM |
206 | OPTION_XMAC_D16, |
207 | OPTION_XMAC_24, | |
208 | OPTION_DSP_PACKA, | |
209 | OPTION_CRC, | |
210 | OPTION_DVBF, | |
211 | OPTION_TELEPHONY, | |
212 | OPTION_XYMEMORY, | |
213 | OPTION_LOCK, | |
214 | OPTION_SWAPE, | |
ce440d63 | 215 | OPTION_RTSC |
6f4b1afc | 216 | }; |
ea1562b3 NC |
217 | |
218 | struct option md_longopts[] = | |
6f4b1afc CM |
219 | { |
220 | { "EB", no_argument, NULL, OPTION_EB }, | |
221 | { "EL", no_argument, NULL, OPTION_EL }, | |
222 | { "mcpu", required_argument, NULL, OPTION_MCPU }, | |
223 | { "mA6", no_argument, NULL, OPTION_ARC600 }, | |
24b368f8 CZ |
224 | { "mARC600", no_argument, NULL, OPTION_ARC600 }, |
225 | { "mARC601", no_argument, NULL, OPTION_ARC601 }, | |
226 | { "mARC700", no_argument, NULL, OPTION_ARC700 }, | |
6f4b1afc CM |
227 | { "mA7", no_argument, NULL, OPTION_ARC700 }, |
228 | { "mEM", no_argument, NULL, OPTION_ARCEM }, | |
229 | { "mHS", no_argument, NULL, OPTION_ARCHS }, | |
230 | { "mcode-density", no_argument, NULL, OPTION_CD }, | |
4670103e | 231 | { "mrelax", no_argument, NULL, OPTION_RELAX }, |
bdd582db | 232 | { "mnps400", no_argument, NULL, OPTION_NPS400 }, |
6f4b1afc | 233 | |
ce440d63 GM |
234 | /* Floating point options */ |
235 | { "mspfp", no_argument, NULL, OPTION_SPFP}, | |
236 | { "mspfp-compact", no_argument, NULL, OPTION_SPFP}, | |
237 | { "mspfp_compact", no_argument, NULL, OPTION_SPFP}, | |
238 | { "mspfp-fast", no_argument, NULL, OPTION_SPFP}, | |
239 | { "mspfp_fast", no_argument, NULL, OPTION_SPFP}, | |
240 | { "mdpfp", no_argument, NULL, OPTION_DPFP}, | |
241 | { "mdpfp-compact", no_argument, NULL, OPTION_DPFP}, | |
242 | { "mdpfp_compact", no_argument, NULL, OPTION_DPFP}, | |
243 | { "mdpfp-fast", no_argument, NULL, OPTION_DPFP}, | |
244 | { "mdpfp_fast", no_argument, NULL, OPTION_DPFP}, | |
245 | { "mfpuda", no_argument, NULL, OPTION_FPUDA}, | |
246 | ||
6f4b1afc CM |
247 | /* The following options are deprecated and provided here only for |
248 | compatibility reasons. */ | |
249 | { "mav2em", no_argument, NULL, OPTION_ARCEM }, | |
250 | { "mav2hs", no_argument, NULL, OPTION_ARCHS }, | |
251 | { "muser-mode-only", no_argument, NULL, OPTION_USER_MODE }, | |
252 | { "mld-extension-reg-mask", required_argument, NULL, OPTION_LD_EXT_MASK }, | |
253 | { "mswap", no_argument, NULL, OPTION_SWAP }, | |
254 | { "mnorm", no_argument, NULL, OPTION_NORM }, | |
255 | { "mbarrel-shifter", no_argument, NULL, OPTION_BARREL_SHIFT }, | |
256 | { "mbarrel_shifter", no_argument, NULL, OPTION_BARREL_SHIFT }, | |
257 | { "mmin-max", no_argument, NULL, OPTION_MIN_MAX }, | |
258 | { "mmin_max", no_argument, NULL, OPTION_MIN_MAX }, | |
259 | { "mno-mpy", no_argument, NULL, OPTION_NO_MPY }, | |
260 | { "mea", no_argument, NULL, OPTION_EA }, | |
261 | { "mEA", no_argument, NULL, OPTION_EA }, | |
262 | { "mmul64", no_argument, NULL, OPTION_MUL64 }, | |
263 | { "msimd", no_argument, NULL, OPTION_SIMD}, | |
6f4b1afc CM |
264 | { "mmac-d16", no_argument, NULL, OPTION_XMAC_D16}, |
265 | { "mmac_d16", no_argument, NULL, OPTION_XMAC_D16}, | |
266 | { "mmac-24", no_argument, NULL, OPTION_XMAC_24}, | |
267 | { "mmac_24", no_argument, NULL, OPTION_XMAC_24}, | |
268 | { "mdsp-packa", no_argument, NULL, OPTION_DSP_PACKA}, | |
269 | { "mdsp_packa", no_argument, NULL, OPTION_DSP_PACKA}, | |
270 | { "mcrc", no_argument, NULL, OPTION_CRC}, | |
271 | { "mdvbf", no_argument, NULL, OPTION_DVBF}, | |
272 | { "mtelephony", no_argument, NULL, OPTION_TELEPHONY}, | |
273 | { "mxy", no_argument, NULL, OPTION_XYMEMORY}, | |
274 | { "mlock", no_argument, NULL, OPTION_LOCK}, | |
275 | { "mswape", no_argument, NULL, OPTION_SWAPE}, | |
276 | { "mrtsc", no_argument, NULL, OPTION_RTSC}, | |
6f4b1afc CM |
277 | |
278 | { NULL, no_argument, NULL, 0 } | |
279 | }; | |
252b5132 | 280 | |
886a2506 | 281 | size_t md_longopts_size = sizeof (md_longopts); |
0d2bcfaf | 282 | |
886a2506 | 283 | /* Local data and data types. */ |
252b5132 | 284 | |
886a2506 NC |
285 | /* Used since new relocation types are introduced in this |
286 | file (DUMMY_RELOC_LITUSE_*). */ | |
287 | typedef int extended_bfd_reloc_code_real_type; | |
252b5132 | 288 | |
886a2506 | 289 | struct arc_fixup |
252b5132 | 290 | { |
886a2506 | 291 | expressionS exp; |
252b5132 | 292 | |
886a2506 | 293 | extended_bfd_reloc_code_real_type reloc; |
252b5132 | 294 | |
886a2506 NC |
295 | /* index into arc_operands. */ |
296 | unsigned int opindex; | |
252b5132 | 297 | |
886a2506 NC |
298 | /* PC-relative, used by internals fixups. */ |
299 | unsigned char pcrel; | |
252b5132 | 300 | |
886a2506 NC |
301 | /* TRUE if this fixup is for LIMM operand. */ |
302 | bfd_boolean islong; | |
303 | }; | |
252b5132 | 304 | |
886a2506 NC |
305 | struct arc_insn |
306 | { | |
307 | unsigned int insn; | |
308 | int nfixups; | |
309 | struct arc_fixup fixups[MAX_INSN_FIXUPS]; | |
310 | long limm; | |
311 | bfd_boolean short_insn; /* Boolean value: TRUE if current insn is | |
312 | short. */ | |
313 | bfd_boolean has_limm; /* Boolean value: TRUE if limm field is | |
314 | valid. */ | |
4670103e CZ |
315 | bfd_boolean relax; /* Boolean value: TRUE if needs |
316 | relaxation. */ | |
886a2506 | 317 | }; |
ea1562b3 | 318 | |
886a2506 NC |
319 | /* Structure to hold any last two instructions. */ |
320 | static struct arc_last_insn | |
252b5132 | 321 | { |
886a2506 NC |
322 | /* Saved instruction opcode. */ |
323 | const struct arc_opcode *opcode; | |
252b5132 | 324 | |
886a2506 NC |
325 | /* Boolean value: TRUE if current insn is short. */ |
326 | bfd_boolean has_limm; | |
252b5132 | 327 | |
886a2506 NC |
328 | /* Boolean value: TRUE if current insn has delay slot. */ |
329 | bfd_boolean has_delay_slot; | |
330 | } arc_last_insns[2]; | |
252b5132 | 331 | |
b99747ae CZ |
332 | /* Extension instruction suffix classes. */ |
333 | typedef struct | |
334 | { | |
335 | const char *name; | |
336 | int len; | |
c810e0b8 | 337 | int attr_class; |
b99747ae CZ |
338 | } attributes_t; |
339 | ||
340 | static const attributes_t suffixclass[] = | |
341 | { | |
342 | { "SUFFIX_FLAG", 11, ARC_SUFFIX_FLAG }, | |
343 | { "SUFFIX_COND", 11, ARC_SUFFIX_COND }, | |
344 | { "SUFFIX_NONE", 11, ARC_SUFFIX_NONE } | |
345 | }; | |
346 | ||
347 | /* Extension instruction syntax classes. */ | |
348 | static const attributes_t syntaxclass[] = | |
349 | { | |
350 | { "SYNTAX_3OP", 10, ARC_SYNTAX_3OP }, | |
945e0f82 CZ |
351 | { "SYNTAX_2OP", 10, ARC_SYNTAX_2OP }, |
352 | { "SYNTAX_1OP", 10, ARC_SYNTAX_1OP }, | |
353 | { "SYNTAX_NOP", 10, ARC_SYNTAX_NOP } | |
b99747ae CZ |
354 | }; |
355 | ||
356 | /* Extension instruction syntax classes modifiers. */ | |
357 | static const attributes_t syntaxclassmod[] = | |
358 | { | |
359 | { "OP1_IMM_IMPLIED" , 15, ARC_OP1_IMM_IMPLIED }, | |
360 | { "OP1_MUST_BE_IMM" , 15, ARC_OP1_MUST_BE_IMM } | |
361 | }; | |
362 | ||
f36e33da CZ |
363 | /* Extension register type. */ |
364 | typedef struct | |
365 | { | |
366 | char *name; | |
367 | int number; | |
368 | int imode; | |
369 | } extRegister_t; | |
370 | ||
371 | /* A structure to hold the additional conditional codes. */ | |
372 | static struct | |
373 | { | |
374 | struct arc_flag_operand *arc_ext_condcode; | |
375 | int size; | |
376 | } ext_condcode = { NULL, 0 }; | |
377 | ||
da5be039 AB |
378 | /* Structure to hold an entry in ARC_OPCODE_HASH. */ |
379 | struct arc_opcode_hash_entry | |
380 | { | |
381 | /* The number of pointers in the OPCODE list. */ | |
382 | size_t count; | |
383 | ||
384 | /* Points to a list of opcode pointers. */ | |
385 | const struct arc_opcode **opcode; | |
386 | }; | |
387 | ||
1328504b AB |
388 | /* Structure used for iterating through an arc_opcode_hash_entry. */ |
389 | struct arc_opcode_hash_entry_iterator | |
390 | { | |
391 | /* Index into the OPCODE element of the arc_opcode_hash_entry. */ | |
392 | size_t index; | |
393 | ||
394 | /* The specific ARC_OPCODE from the ARC_OPCODES table that was last | |
395 | returned by this iterator. */ | |
396 | const struct arc_opcode *opcode; | |
397 | }; | |
398 | ||
4670103e CZ |
399 | /* Forward declaration. */ |
400 | static void assemble_insn | |
401 | (const struct arc_opcode *, const expressionS *, int, | |
402 | const struct arc_flags *, int, struct arc_insn *); | |
403 | ||
886a2506 | 404 | /* The cpu for which we are generating code. */ |
24740d83 AB |
405 | static unsigned arc_target; |
406 | static const char *arc_target_name; | |
407 | static unsigned arc_features; | |
252b5132 | 408 | |
886a2506 | 409 | /* The default architecture. */ |
24740d83 | 410 | static int arc_mach_type; |
252b5132 | 411 | |
1adc8a9a CZ |
412 | /* TRUE if the cpu type has been explicitly specified. */ |
413 | static bfd_boolean mach_type_specified_p = FALSE; | |
0d2bcfaf | 414 | |
886a2506 NC |
415 | /* The hash table of instruction opcodes. */ |
416 | static struct hash_control *arc_opcode_hash; | |
0d2bcfaf | 417 | |
886a2506 NC |
418 | /* The hash table of register symbols. */ |
419 | static struct hash_control *arc_reg_hash; | |
252b5132 | 420 | |
f36e33da CZ |
421 | /* The hash table of aux register symbols. */ |
422 | static struct hash_control *arc_aux_hash; | |
423 | ||
db18dbab GM |
424 | /* The hash table of address types. */ |
425 | static struct hash_control *arc_addrtype_hash; | |
426 | ||
886a2506 NC |
427 | /* A table of CPU names and opcode sets. */ |
428 | static const struct cpu_type | |
429 | { | |
430 | const char *name; | |
431 | unsigned flags; | |
432 | int mach; | |
433 | unsigned eflags; | |
434 | unsigned features; | |
252b5132 | 435 | } |
886a2506 | 436 | cpu_types[] = |
252b5132 | 437 | { |
886a2506 NC |
438 | { "arc600", ARC_OPCODE_ARC600, bfd_mach_arc_arc600, |
439 | E_ARC_MACH_ARC600, 0x00}, | |
440 | { "arc700", ARC_OPCODE_ARC700, bfd_mach_arc_arc700, | |
441 | E_ARC_MACH_ARC700, 0x00}, | |
bdd582db GM |
442 | { "nps400", ARC_OPCODE_ARC700 , bfd_mach_arc_arc700, |
443 | E_ARC_MACH_ARC700, ARC_NPS400}, | |
886a2506 | 444 | { "arcem", ARC_OPCODE_ARCv2EM, bfd_mach_arc_arcv2, |
87789e08 | 445 | EF_ARC_CPU_ARCV2EM, 0x00}, |
886a2506 NC |
446 | { "archs", ARC_OPCODE_ARCv2HS, bfd_mach_arc_arcv2, |
447 | EF_ARC_CPU_ARCV2HS, ARC_CD}, | |
886a2506 NC |
448 | { 0, 0, 0, 0, 0 } |
449 | }; | |
252b5132 | 450 | |
886a2506 NC |
451 | /* Used by the arc_reloc_op table. Order is important. */ |
452 | #define O_gotoff O_md1 /* @gotoff relocation. */ | |
453 | #define O_gotpc O_md2 /* @gotpc relocation. */ | |
454 | #define O_plt O_md3 /* @plt relocation. */ | |
455 | #define O_sda O_md4 /* @sda relocation. */ | |
456 | #define O_pcl O_md5 /* @pcl relocation. */ | |
457 | #define O_tlsgd O_md6 /* @tlsgd relocation. */ | |
458 | #define O_tlsie O_md7 /* @tlsie relocation. */ | |
459 | #define O_tpoff9 O_md8 /* @tpoff9 relocation. */ | |
460 | #define O_tpoff O_md9 /* @tpoff relocation. */ | |
461 | #define O_dtpoff9 O_md10 /* @dtpoff9 relocation. */ | |
462 | #define O_dtpoff O_md11 /* @dtpoff relocation. */ | |
463 | #define O_last O_dtpoff | |
464 | ||
465 | /* Used to define a bracket as operand in tokens. */ | |
466 | #define O_bracket O_md32 | |
467 | ||
db18dbab GM |
468 | /* Used to define a colon as an operand in tokens. */ |
469 | #define O_colon O_md31 | |
470 | ||
471 | /* Used to define address types in nps400. */ | |
472 | #define O_addrtype O_md30 | |
473 | ||
886a2506 NC |
474 | /* Dummy relocation, to be sorted out. */ |
475 | #define DUMMY_RELOC_ARC_ENTRY (BFD_RELOC_UNUSED + 1) | |
476 | ||
477 | #define USER_RELOC_P(R) ((R) >= O_gotoff && (R) <= O_last) | |
478 | ||
479 | /* A table to map the spelling of a relocation operand into an appropriate | |
480 | bfd_reloc_code_real_type type. The table is assumed to be ordered such | |
481 | that op-O_literal indexes into it. */ | |
482 | #define ARC_RELOC_TABLE(op) \ | |
483 | (&arc_reloc_op[ ((!USER_RELOC_P (op)) \ | |
484 | ? (abort (), 0) \ | |
485 | : (int) (op) - (int) O_gotoff) ]) | |
486 | ||
487 | #define DEF(NAME, RELOC, REQ) \ | |
488 | { #NAME, sizeof (#NAME)-1, O_##NAME, RELOC, REQ} | |
489 | ||
490 | static const struct arc_reloc_op_tag | |
491 | { | |
492 | /* String to lookup. */ | |
493 | const char *name; | |
494 | /* Size of the string. */ | |
495 | size_t length; | |
496 | /* Which operator to use. */ | |
497 | operatorT op; | |
498 | extended_bfd_reloc_code_real_type reloc; | |
499 | /* Allows complex relocation expression like identifier@reloc + | |
500 | const. */ | |
501 | unsigned int complex_expr : 1; | |
502 | } | |
503 | arc_reloc_op[] = | |
6f4b1afc CM |
504 | { |
505 | DEF (gotoff, BFD_RELOC_ARC_GOTOFF, 1), | |
506 | DEF (gotpc, BFD_RELOC_ARC_GOTPC32, 0), | |
507 | DEF (plt, BFD_RELOC_ARC_PLT32, 0), | |
508 | DEF (sda, DUMMY_RELOC_ARC_ENTRY, 1), | |
509 | DEF (pcl, BFD_RELOC_ARC_PC32, 1), | |
510 | DEF (tlsgd, BFD_RELOC_ARC_TLS_GD_GOT, 0), | |
511 | DEF (tlsie, BFD_RELOC_ARC_TLS_IE_GOT, 0), | |
512 | DEF (tpoff9, BFD_RELOC_ARC_TLS_LE_S9, 0), | |
b125bd17 | 513 | DEF (tpoff, BFD_RELOC_ARC_TLS_LE_32, 1), |
6f4b1afc | 514 | DEF (dtpoff9, BFD_RELOC_ARC_TLS_DTPOFF_S9, 0), |
05bbf016 | 515 | DEF (dtpoff, BFD_RELOC_ARC_TLS_DTPOFF, 1), |
6f4b1afc | 516 | }; |
252b5132 | 517 | |
886a2506 NC |
518 | static const int arc_num_reloc_op |
519 | = sizeof (arc_reloc_op) / sizeof (*arc_reloc_op); | |
520 | ||
4670103e CZ |
521 | /* Structure for relaxable instruction that have to be swapped with a |
522 | smaller alternative instruction. */ | |
523 | struct arc_relaxable_ins | |
524 | { | |
525 | /* Mnemonic that should be checked. */ | |
526 | const char *mnemonic_r; | |
527 | ||
528 | /* Operands that should be checked. | |
529 | Indexes of operands from operand array. */ | |
530 | enum rlx_operand_type operands[6]; | |
531 | ||
532 | /* Flags that should be checked. */ | |
533 | unsigned flag_classes[5]; | |
534 | ||
535 | /* Mnemonic (smaller) alternative to be used later for relaxation. */ | |
536 | const char *mnemonic_alt; | |
537 | ||
538 | /* Index of operand that generic relaxation has to check. */ | |
539 | unsigned opcheckidx; | |
540 | ||
541 | /* Base subtype index used. */ | |
542 | enum arc_rlx_types subtype; | |
543 | }; | |
544 | ||
545 | #define RELAX_TABLE_ENTRY(BITS, ISSIGNED, SIZE, NEXT) \ | |
546 | { (ISSIGNED) ? ((1 << ((BITS) - 1)) - 1) : ((1 << (BITS)) - 1), \ | |
547 | (ISSIGNED) ? -(1 << ((BITS) - 1)) : 0, \ | |
548 | (SIZE), \ | |
549 | (NEXT) } \ | |
550 | ||
551 | #define RELAX_TABLE_ENTRY_MAX(ISSIGNED, SIZE, NEXT) \ | |
552 | { (ISSIGNED) ? 0x7FFFFFFF : 0xFFFFFFFF, \ | |
553 | (ISSIGNED) ? -(0x7FFFFFFF) : 0, \ | |
554 | (SIZE), \ | |
555 | (NEXT) } \ | |
556 | ||
557 | ||
558 | /* ARC relaxation table. */ | |
559 | const relax_typeS md_relax_table[] = | |
560 | { | |
561 | /* Fake entry. */ | |
562 | {0, 0, 0, 0}, | |
563 | ||
564 | /* BL_S s13 -> | |
565 | BL s25. */ | |
db18dbab GM |
566 | RELAX_TABLE_ENTRY (13, 1, 2, ARC_RLX_BL), |
567 | RELAX_TABLE_ENTRY (25, 1, 4, ARC_RLX_NONE), | |
4670103e CZ |
568 | |
569 | /* B_S s10 -> | |
570 | B s25. */ | |
db18dbab GM |
571 | RELAX_TABLE_ENTRY (10, 1, 2, ARC_RLX_B), |
572 | RELAX_TABLE_ENTRY (25, 1, 4, ARC_RLX_NONE), | |
4670103e CZ |
573 | |
574 | /* ADD_S c,b, u3 -> | |
575 | ADD<.f> a,b,u6 -> | |
576 | ADD<.f> a,b,limm. */ | |
db18dbab GM |
577 | RELAX_TABLE_ENTRY (3, 0, 2, ARC_RLX_ADD_U6), |
578 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_ADD_LIMM), | |
579 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
580 | |
581 | /* LD_S a, [b, u7] -> | |
582 | LD<zz><.x><.aa><.di> a, [b, s9] -> | |
583 | LD<zz><.x><.aa><.di> a, [b, limm] */ | |
db18dbab GM |
584 | RELAX_TABLE_ENTRY (7, 0, 2, ARC_RLX_LD_S9), |
585 | RELAX_TABLE_ENTRY (9, 1, 4, ARC_RLX_LD_LIMM), | |
586 | RELAX_TABLE_ENTRY_MAX (1, 8, ARC_RLX_NONE), | |
4670103e CZ |
587 | |
588 | /* MOV_S b, u8 -> | |
589 | MOV<.f> b, s12 -> | |
590 | MOV<.f> b, limm. */ | |
db18dbab GM |
591 | RELAX_TABLE_ENTRY (8, 0, 2, ARC_RLX_MOV_S12), |
592 | RELAX_TABLE_ENTRY (8, 0, 4, ARC_RLX_MOV_LIMM), | |
593 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
594 | |
595 | /* SUB_S c, b, u3 -> | |
596 | SUB<.f> a, b, u6 -> | |
597 | SUB<.f> a, b, limm. */ | |
db18dbab GM |
598 | RELAX_TABLE_ENTRY (3, 0, 2, ARC_RLX_SUB_U6), |
599 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_SUB_LIMM), | |
600 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
601 | |
602 | /* MPY<.f> a, b, u6 -> | |
603 | MPY<.f> a, b, limm. */ | |
db18dbab GM |
604 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_MPY_LIMM), |
605 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
606 | |
607 | /* MOV<.f><.cc> b, u6 -> | |
608 | MOV<.f><.cc> b, limm. */ | |
db18dbab GM |
609 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_MOV_RLIMM), |
610 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
611 | |
612 | /* ADD<.f><.cc> b, b, u6 -> | |
613 | ADD<.f><.cc> b, b, limm. */ | |
db18dbab GM |
614 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_ADD_RRLIMM), |
615 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
616 | }; |
617 | ||
618 | /* Order of this table's entries matters! */ | |
619 | const struct arc_relaxable_ins arc_relaxable_insns[] = | |
620 | { | |
621 | { "bl", { IMMEDIATE }, { 0 }, "bl_s", 0, ARC_RLX_BL_S }, | |
622 | { "b", { IMMEDIATE }, { 0 }, "b_s", 0, ARC_RLX_B_S }, | |
623 | { "add", { REGISTER, REGISTER_DUP, IMMEDIATE }, { 5, 1, 0 }, "add", | |
624 | 2, ARC_RLX_ADD_RRU6}, | |
625 | { "add", { REGISTER_S, REGISTER_S, IMMEDIATE }, { 0 }, "add_s", 2, | |
626 | ARC_RLX_ADD_U3 }, | |
627 | { "add", { REGISTER, REGISTER, IMMEDIATE }, { 5, 0 }, "add", 2, | |
628 | ARC_RLX_ADD_U6 }, | |
629 | { "ld", { REGISTER_S, BRACKET, REGISTER_S, IMMEDIATE, BRACKET }, | |
630 | { 0 }, "ld_s", 3, ARC_RLX_LD_U7 }, | |
631 | { "ld", { REGISTER, BRACKET, REGISTER_NO_GP, IMMEDIATE, BRACKET }, | |
632 | { 11, 4, 14, 17, 0 }, "ld", 3, ARC_RLX_LD_S9 }, | |
633 | { "mov", { REGISTER_S, IMMEDIATE }, { 0 }, "mov_s", 1, ARC_RLX_MOV_U8 }, | |
634 | { "mov", { REGISTER, IMMEDIATE }, { 5, 0 }, "mov", 1, ARC_RLX_MOV_S12 }, | |
635 | { "mov", { REGISTER, IMMEDIATE }, { 5, 1, 0 },"mov", 1, ARC_RLX_MOV_RU6 }, | |
636 | { "sub", { REGISTER_S, REGISTER_S, IMMEDIATE }, { 0 }, "sub_s", 2, | |
637 | ARC_RLX_SUB_U3 }, | |
638 | { "sub", { REGISTER, REGISTER, IMMEDIATE }, { 5, 0 }, "sub", 2, | |
639 | ARC_RLX_SUB_U6 }, | |
640 | { "mpy", { REGISTER, REGISTER, IMMEDIATE }, { 5, 0 }, "mpy", 2, | |
641 | ARC_RLX_MPY_U6 }, | |
642 | }; | |
643 | ||
644 | const unsigned arc_num_relaxable_ins = ARRAY_SIZE (arc_relaxable_insns); | |
645 | ||
886a2506 NC |
646 | /* Flags to set in the elf header. */ |
647 | static flagword arc_eflag = 0x00; | |
648 | ||
649 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ | |
650 | symbolS * GOT_symbol = 0; | |
651 | ||
652 | /* Set to TRUE when we assemble instructions. */ | |
653 | static bfd_boolean assembling_insn = FALSE; | |
654 | ||
886a2506 NC |
655 | /* Functions implementation. */ |
656 | ||
b9b47ab7 AB |
657 | /* Return a pointer to ARC_OPCODE_HASH_ENTRY that identifies all |
658 | ARC_OPCODE entries in ARC_OPCODE_HASH that match NAME, or NULL if there | |
659 | are no matching entries in ARC_OPCODE_HASH. */ | |
da5be039 | 660 | |
b9b47ab7 | 661 | static const struct arc_opcode_hash_entry * |
da5be039 AB |
662 | arc_find_opcode (const char *name) |
663 | { | |
664 | const struct arc_opcode_hash_entry *entry; | |
da5be039 AB |
665 | |
666 | entry = hash_find (arc_opcode_hash, name); | |
b9b47ab7 | 667 | return entry; |
da5be039 AB |
668 | } |
669 | ||
1328504b AB |
670 | /* Initialise the iterator ITER. */ |
671 | ||
672 | static void | |
673 | arc_opcode_hash_entry_iterator_init (struct arc_opcode_hash_entry_iterator *iter) | |
674 | { | |
675 | iter->index = 0; | |
676 | iter->opcode = NULL; | |
677 | } | |
678 | ||
679 | /* Return the next ARC_OPCODE from ENTRY, using ITER to hold state between | |
680 | calls to this function. Return NULL when all ARC_OPCODE entries have | |
681 | been returned. */ | |
682 | ||
683 | static const struct arc_opcode * | |
684 | arc_opcode_hash_entry_iterator_next (const struct arc_opcode_hash_entry *entry, | |
685 | struct arc_opcode_hash_entry_iterator *iter) | |
686 | { | |
687 | if (iter->opcode == NULL && iter->index == 0) | |
688 | { | |
689 | gas_assert (entry->count > 0); | |
690 | iter->opcode = entry->opcode[iter->index]; | |
691 | } | |
692 | else if (iter->opcode != NULL) | |
693 | { | |
694 | const char *old_name = iter->opcode->name; | |
695 | ||
696 | iter->opcode++; | |
fe779266 AB |
697 | if (iter->opcode->name == NULL |
698 | || strcmp (old_name, iter->opcode->name) != 0) | |
1328504b AB |
699 | { |
700 | iter->index++; | |
701 | if (iter->index == entry->count) | |
702 | iter->opcode = NULL; | |
703 | else | |
704 | iter->opcode = entry->opcode[iter->index]; | |
705 | } | |
706 | } | |
707 | ||
708 | return iter->opcode; | |
709 | } | |
710 | ||
b99747ae CZ |
711 | /* Insert an opcode into opcode hash structure. */ |
712 | ||
713 | static void | |
714 | arc_insert_opcode (const struct arc_opcode *opcode) | |
715 | { | |
716 | const char *name, *retval; | |
717 | struct arc_opcode_hash_entry *entry; | |
718 | name = opcode->name; | |
719 | ||
720 | entry = hash_find (arc_opcode_hash, name); | |
721 | if (entry == NULL) | |
722 | { | |
add39d23 | 723 | entry = XNEW (struct arc_opcode_hash_entry); |
b99747ae CZ |
724 | entry->count = 0; |
725 | entry->opcode = NULL; | |
726 | ||
727 | retval = hash_insert (arc_opcode_hash, name, (void *) entry); | |
728 | if (retval) | |
729 | as_fatal (_("internal error: can't hash opcode '%s': %s"), | |
730 | name, retval); | |
731 | } | |
732 | ||
add39d23 TS |
733 | entry->opcode = XRESIZEVEC (const struct arc_opcode *, entry->opcode, |
734 | entry->count + 1); | |
b99747ae CZ |
735 | |
736 | if (entry->opcode == NULL) | |
737 | as_fatal (_("Virtual memory exhausted")); | |
738 | ||
739 | entry->opcode[entry->count] = opcode; | |
740 | entry->count++; | |
741 | } | |
742 | ||
743 | ||
886a2506 NC |
744 | /* Like md_number_to_chars but used for limms. The 4-byte limm value, |
745 | is encoded as 'middle-endian' for a little-endian target. FIXME! | |
746 | this function is used for regular 4 byte instructions as well. */ | |
747 | ||
748 | static void | |
6f4b1afc | 749 | md_number_to_chars_midend (char *buf, valueT val, int n) |
886a2506 NC |
750 | { |
751 | if (n == 4) | |
752 | { | |
753 | md_number_to_chars (buf, (val & 0xffff0000) >> 16, 2); | |
754 | md_number_to_chars (buf + 2, (val & 0xffff), 2); | |
252b5132 RH |
755 | } |
756 | else | |
886a2506 NC |
757 | { |
758 | md_number_to_chars (buf, val, n); | |
759 | } | |
252b5132 RH |
760 | } |
761 | ||
24740d83 AB |
762 | /* Select an appropriate entry from CPU_TYPES based on ARG and initialise |
763 | the relevant static global variables. */ | |
764 | ||
765 | static void | |
766 | arc_select_cpu (const char *arg) | |
767 | { | |
a9522a21 | 768 | int cpu_flags = 0; |
24740d83 AB |
769 | int i; |
770 | ||
771 | for (i = 0; cpu_types[i].name; ++i) | |
772 | { | |
773 | if (!strcasecmp (cpu_types[i].name, arg)) | |
774 | { | |
775 | arc_target = cpu_types[i].flags; | |
776 | arc_target_name = cpu_types[i].name; | |
777 | arc_features = cpu_types[i].features; | |
778 | arc_mach_type = cpu_types[i].mach; | |
779 | cpu_flags = cpu_types[i].eflags; | |
780 | break; | |
781 | } | |
782 | } | |
783 | ||
784 | if (!cpu_types[i].name) | |
785 | as_fatal (_("unknown architecture: %s\n"), arg); | |
a9522a21 AB |
786 | gas_assert (cpu_flags != 0); |
787 | arc_eflag = (arc_eflag & ~EF_ARC_MACH_MSK) | cpu_flags; | |
24740d83 AB |
788 | } |
789 | ||
886a2506 NC |
790 | /* Here ends all the ARCompact extension instruction assembling |
791 | stuff. */ | |
252b5132 | 792 | |
886a2506 NC |
793 | static void |
794 | arc_extra_reloc (int r_type) | |
ea1562b3 | 795 | { |
886a2506 NC |
796 | char *sym_name, c; |
797 | symbolS *sym, *lab = NULL; | |
798 | ||
799 | if (*input_line_pointer == '@') | |
800 | input_line_pointer++; | |
801 | c = get_symbol_name (&sym_name); | |
802 | sym = symbol_find_or_make (sym_name); | |
803 | restore_line_pointer (c); | |
804 | if (c == ',' && r_type == BFD_RELOC_ARC_TLS_GD_LD) | |
805 | { | |
806 | ++input_line_pointer; | |
807 | char *lab_name; | |
808 | c = get_symbol_name (&lab_name); | |
809 | lab = symbol_find_or_make (lab_name); | |
810 | restore_line_pointer (c); | |
811 | } | |
841fdfcd CZ |
812 | |
813 | /* These relocations exist as a mechanism for the compiler to tell the | |
814 | linker how to patch the code if the tls model is optimised. However, | |
815 | the relocation itself does not require any space within the assembler | |
816 | fragment, and so we pass a size of 0. | |
817 | ||
818 | The lines that generate these relocations look like this: | |
819 | ||
820 | .tls_gd_ld @.tdata`bl __tls_get_addr@plt | |
821 | ||
822 | The '.tls_gd_ld @.tdata' is processed first and generates the | |
823 | additional relocation, while the 'bl __tls_get_addr@plt' is processed | |
824 | second and generates the additional branch. | |
825 | ||
826 | It is possible that the additional relocation generated by the | |
827 | '.tls_gd_ld @.tdata' will be attached at the very end of one fragment, | |
828 | while the 'bl __tls_get_addr@plt' will be generated as the first thing | |
829 | in the next fragment. This will be fine; both relocations will still | |
830 | appear to be at the same address in the generated object file. | |
831 | However, this only works as the additional relocation is generated | |
832 | with size of 0 bytes. */ | |
886a2506 NC |
833 | fixS *fixP |
834 | = fix_new (frag_now, /* Which frag? */ | |
835 | frag_now_fix (), /* Where in that frag? */ | |
841fdfcd | 836 | 0, /* size: 1, 2, or 4 usually. */ |
886a2506 NC |
837 | sym, /* X_add_symbol. */ |
838 | 0, /* X_add_number. */ | |
839 | FALSE, /* TRUE if PC-relative relocation. */ | |
840 | r_type /* Relocation type. */); | |
841 | fixP->fx_subsy = lab; | |
842 | } | |
252b5132 | 843 | |
886a2506 NC |
844 | static symbolS * |
845 | arc_lcomm_internal (int ignore ATTRIBUTE_UNUSED, | |
846 | symbolS *symbolP, addressT size) | |
847 | { | |
848 | addressT align = 0; | |
849 | SKIP_WHITESPACE (); | |
252b5132 | 850 | |
886a2506 NC |
851 | if (*input_line_pointer == ',') |
852 | { | |
853 | align = parse_align (1); | |
252b5132 | 854 | |
886a2506 NC |
855 | if (align == (addressT) -1) |
856 | return NULL; | |
857 | } | |
858 | else | |
859 | { | |
860 | if (size >= 8) | |
861 | align = 3; | |
862 | else if (size >= 4) | |
863 | align = 2; | |
864 | else if (size >= 2) | |
865 | align = 1; | |
866 | else | |
867 | align = 0; | |
868 | } | |
252b5132 | 869 | |
886a2506 NC |
870 | bss_alloc (symbolP, size, align); |
871 | S_CLEAR_EXTERNAL (symbolP); | |
ea1562b3 | 872 | |
886a2506 NC |
873 | return symbolP; |
874 | } | |
ea1562b3 | 875 | |
886a2506 NC |
876 | static void |
877 | arc_lcomm (int ignore) | |
878 | { | |
879 | symbolS *symbolP = s_comm_internal (ignore, arc_lcomm_internal); | |
ea1562b3 | 880 | |
886a2506 NC |
881 | if (symbolP) |
882 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
883 | } | |
ea1562b3 | 884 | |
886a2506 | 885 | /* Select the cpu we're assembling for. */ |
ea1562b3 | 886 | |
886a2506 NC |
887 | static void |
888 | arc_option (int ignore ATTRIBUTE_UNUSED) | |
252b5132 | 889 | { |
886a2506 NC |
890 | int mach = -1; |
891 | char c; | |
892 | char *cpu; | |
252b5132 | 893 | |
886a2506 NC |
894 | c = get_symbol_name (&cpu); |
895 | mach = arc_get_mach (cpu); | |
252b5132 | 896 | |
886a2506 NC |
897 | if (mach == -1) |
898 | goto bad_cpu; | |
899 | ||
900 | if (!mach_type_specified_p) | |
ea1562b3 | 901 | { |
644aca26 AB |
902 | if ((!strcmp ("ARC600", cpu)) |
903 | || (!strcmp ("ARC601", cpu)) | |
904 | || (!strcmp ("A6", cpu))) | |
24b368f8 CZ |
905 | { |
906 | md_parse_option (OPTION_MCPU, "arc600"); | |
907 | } | |
644aca26 AB |
908 | else if ((!strcmp ("ARC700", cpu)) |
909 | || (!strcmp ("A7", cpu))) | |
24b368f8 CZ |
910 | { |
911 | md_parse_option (OPTION_MCPU, "arc700"); | |
912 | } | |
644aca26 | 913 | else if (!strcmp ("EM", cpu)) |
24b368f8 CZ |
914 | { |
915 | md_parse_option (OPTION_MCPU, "arcem"); | |
916 | } | |
644aca26 | 917 | else if (!strcmp ("HS", cpu)) |
24b368f8 CZ |
918 | { |
919 | md_parse_option (OPTION_MCPU, "archs"); | |
920 | } | |
644aca26 | 921 | else if (!strcmp ("NPS400", cpu)) |
5e001f26 AB |
922 | { |
923 | md_parse_option (OPTION_MCPU, "nps400"); | |
924 | } | |
24b368f8 | 925 | else |
e6ba1cba | 926 | as_fatal (_("could not find the architecture")); |
24b368f8 | 927 | |
886a2506 | 928 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_arc, mach)) |
e6ba1cba | 929 | as_fatal (_("could not set architecture and machine")); |
1adc8a9a CZ |
930 | |
931 | /* Set elf header flags. */ | |
932 | bfd_set_private_flags (stdoutput, arc_eflag); | |
ea1562b3 NC |
933 | } |
934 | else | |
886a2506 | 935 | if (arc_mach_type != mach) |
e6ba1cba | 936 | as_warn (_("Command-line value overrides \".cpu\" directive")); |
886a2506 | 937 | |
24b368f8 | 938 | restore_line_pointer (c); |
886a2506 | 939 | demand_empty_rest_of_line (); |
886a2506 NC |
940 | return; |
941 | ||
942 | bad_cpu: | |
24b368f8 | 943 | restore_line_pointer (c); |
e6ba1cba | 944 | as_bad (_("invalid identifier for \".cpu\"")); |
886a2506 | 945 | ignore_rest_of_line (); |
ea1562b3 | 946 | } |
252b5132 | 947 | |
886a2506 NC |
948 | /* Smartly print an expression. */ |
949 | ||
ea1562b3 | 950 | static void |
886a2506 | 951 | debug_exp (expressionS *t) |
ea1562b3 | 952 | { |
886a2506 NC |
953 | const char *name ATTRIBUTE_UNUSED; |
954 | const char *namemd ATTRIBUTE_UNUSED; | |
252b5132 | 955 | |
886a2506 | 956 | pr_debug ("debug_exp: "); |
252b5132 | 957 | |
886a2506 | 958 | switch (t->X_op) |
252b5132 | 959 | { |
886a2506 NC |
960 | default: name = "unknown"; break; |
961 | case O_illegal: name = "O_illegal"; break; | |
962 | case O_absent: name = "O_absent"; break; | |
963 | case O_constant: name = "O_constant"; break; | |
964 | case O_symbol: name = "O_symbol"; break; | |
965 | case O_symbol_rva: name = "O_symbol_rva"; break; | |
966 | case O_register: name = "O_register"; break; | |
967 | case O_big: name = "O_big"; break; | |
968 | case O_uminus: name = "O_uminus"; break; | |
969 | case O_bit_not: name = "O_bit_not"; break; | |
970 | case O_logical_not: name = "O_logical_not"; break; | |
971 | case O_multiply: name = "O_multiply"; break; | |
972 | case O_divide: name = "O_divide"; break; | |
973 | case O_modulus: name = "O_modulus"; break; | |
974 | case O_left_shift: name = "O_left_shift"; break; | |
975 | case O_right_shift: name = "O_right_shift"; break; | |
976 | case O_bit_inclusive_or: name = "O_bit_inclusive_or"; break; | |
977 | case O_bit_or_not: name = "O_bit_or_not"; break; | |
978 | case O_bit_exclusive_or: name = "O_bit_exclusive_or"; break; | |
979 | case O_bit_and: name = "O_bit_and"; break; | |
980 | case O_add: name = "O_add"; break; | |
981 | case O_subtract: name = "O_subtract"; break; | |
982 | case O_eq: name = "O_eq"; break; | |
983 | case O_ne: name = "O_ne"; break; | |
984 | case O_lt: name = "O_lt"; break; | |
985 | case O_le: name = "O_le"; break; | |
986 | case O_ge: name = "O_ge"; break; | |
987 | case O_gt: name = "O_gt"; break; | |
988 | case O_logical_and: name = "O_logical_and"; break; | |
989 | case O_logical_or: name = "O_logical_or"; break; | |
990 | case O_index: name = "O_index"; break; | |
991 | case O_bracket: name = "O_bracket"; break; | |
db18dbab GM |
992 | case O_colon: name = "O_colon"; break; |
993 | case O_addrtype: name = "O_addrtype"; break; | |
ea1562b3 | 994 | } |
252b5132 | 995 | |
886a2506 | 996 | switch (t->X_md) |
ea1562b3 | 997 | { |
886a2506 NC |
998 | default: namemd = "unknown"; break; |
999 | case O_gotoff: namemd = "O_gotoff"; break; | |
1000 | case O_gotpc: namemd = "O_gotpc"; break; | |
1001 | case O_plt: namemd = "O_plt"; break; | |
1002 | case O_sda: namemd = "O_sda"; break; | |
1003 | case O_pcl: namemd = "O_pcl"; break; | |
1004 | case O_tlsgd: namemd = "O_tlsgd"; break; | |
1005 | case O_tlsie: namemd = "O_tlsie"; break; | |
1006 | case O_tpoff9: namemd = "O_tpoff9"; break; | |
1007 | case O_tpoff: namemd = "O_tpoff"; break; | |
1008 | case O_dtpoff9: namemd = "O_dtpoff9"; break; | |
1009 | case O_dtpoff: namemd = "O_dtpoff"; break; | |
ea1562b3 | 1010 | } |
252b5132 | 1011 | |
886a2506 NC |
1012 | pr_debug ("%s (%s, %s, %d, %s)", name, |
1013 | (t->X_add_symbol) ? S_GET_NAME (t->X_add_symbol) : "--", | |
1014 | (t->X_op_symbol) ? S_GET_NAME (t->X_op_symbol) : "--", | |
1015 | (int) t->X_add_number, | |
1016 | (t->X_md) ? namemd : "--"); | |
1017 | pr_debug ("\n"); | |
1018 | fflush (stderr); | |
1019 | } | |
252b5132 | 1020 | |
886a2506 NC |
1021 | /* Parse the arguments to an opcode. */ |
1022 | ||
1023 | static int | |
1024 | tokenize_arguments (char *str, | |
1025 | expressionS *tok, | |
1026 | int ntok) | |
1027 | { | |
1028 | char *old_input_line_pointer; | |
1029 | bfd_boolean saw_comma = FALSE; | |
1030 | bfd_boolean saw_arg = FALSE; | |
1031 | int brk_lvl = 0; | |
1032 | int num_args = 0; | |
886a2506 NC |
1033 | int i; |
1034 | size_t len; | |
1035 | const struct arc_reloc_op_tag *r; | |
1036 | expressionS tmpE; | |
6f4b1afc | 1037 | char *reloc_name, c; |
886a2506 NC |
1038 | |
1039 | memset (tok, 0, sizeof (*tok) * ntok); | |
1040 | ||
1041 | /* Save and restore input_line_pointer around this function. */ | |
1042 | old_input_line_pointer = input_line_pointer; | |
1043 | input_line_pointer = str; | |
ea1562b3 | 1044 | |
886a2506 | 1045 | while (*input_line_pointer) |
ea1562b3 NC |
1046 | { |
1047 | SKIP_WHITESPACE (); | |
886a2506 | 1048 | switch (*input_line_pointer) |
252b5132 | 1049 | { |
886a2506 NC |
1050 | case '\0': |
1051 | goto fini; | |
1052 | ||
1053 | case ',': | |
1054 | input_line_pointer++; | |
1055 | if (saw_comma || !saw_arg) | |
1056 | goto err; | |
1057 | saw_comma = TRUE; | |
1058 | break; | |
252b5132 | 1059 | |
886a2506 NC |
1060 | case '}': |
1061 | case ']': | |
1062 | ++input_line_pointer; | |
1063 | --brk_lvl; | |
3b889a78 | 1064 | if (!saw_arg || num_args == ntok) |
886a2506 NC |
1065 | goto err; |
1066 | tok->X_op = O_bracket; | |
1067 | ++tok; | |
1068 | ++num_args; | |
1069 | break; | |
ea1562b3 | 1070 | |
886a2506 NC |
1071 | case '{': |
1072 | case '[': | |
1073 | input_line_pointer++; | |
3b889a78 | 1074 | if (brk_lvl || num_args == ntok) |
886a2506 NC |
1075 | goto err; |
1076 | ++brk_lvl; | |
1077 | tok->X_op = O_bracket; | |
1078 | ++tok; | |
1079 | ++num_args; | |
1080 | break; | |
1081 | ||
db18dbab GM |
1082 | case ':': |
1083 | input_line_pointer++; | |
1084 | if (!saw_arg || num_args == ntok) | |
1085 | goto err; | |
1086 | tok->X_op = O_colon; | |
1087 | saw_arg = FALSE; | |
1088 | ++tok; | |
1089 | ++num_args; | |
1090 | break; | |
1091 | ||
886a2506 NC |
1092 | case '@': |
1093 | /* We have labels, function names and relocations, all | |
1094 | starting with @ symbol. Sort them out. */ | |
3b889a78 | 1095 | if ((saw_arg && !saw_comma) || num_args == ntok) |
886a2506 NC |
1096 | goto err; |
1097 | ||
1098 | /* Parse @label. */ | |
1099 | tok->X_op = O_symbol; | |
1100 | tok->X_md = O_absent; | |
1101 | expression (tok); | |
1102 | if (*input_line_pointer != '@') | |
1103 | goto normalsymbol; /* This is not a relocation. */ | |
1104 | ||
6f4b1afc CM |
1105 | relocationsym: |
1106 | ||
886a2506 NC |
1107 | /* A relocation opernad has the following form |
1108 | @identifier@relocation_type. The identifier is already | |
1109 | in tok! */ | |
1110 | if (tok->X_op != O_symbol) | |
ea1562b3 | 1111 | { |
886a2506 NC |
1112 | as_bad (_("No valid label relocation operand")); |
1113 | goto err; | |
252b5132 | 1114 | } |
886a2506 NC |
1115 | |
1116 | /* Parse @relocation_type. */ | |
6f4b1afc CM |
1117 | input_line_pointer++; |
1118 | c = get_symbol_name (&reloc_name); | |
1119 | len = input_line_pointer - reloc_name; | |
1120 | if (len == 0) | |
252b5132 | 1121 | { |
886a2506 NC |
1122 | as_bad (_("No relocation operand")); |
1123 | goto err; | |
252b5132 | 1124 | } |
252b5132 | 1125 | |
886a2506 NC |
1126 | /* Go through known relocation and try to find a match. */ |
1127 | r = &arc_reloc_op[0]; | |
1128 | for (i = arc_num_reloc_op - 1; i >= 0; i--, r++) | |
6f4b1afc CM |
1129 | if (len == r->length |
1130 | && memcmp (reloc_name, r->name, len) == 0) | |
886a2506 | 1131 | break; |
886a2506 | 1132 | if (i < 0) |
252b5132 | 1133 | { |
6f4b1afc | 1134 | as_bad (_("Unknown relocation operand: @%s"), reloc_name); |
886a2506 NC |
1135 | goto err; |
1136 | } | |
1137 | ||
6f4b1afc CM |
1138 | *input_line_pointer = c; |
1139 | SKIP_WHITESPACE_AFTER_NAME (); | |
886a2506 NC |
1140 | /* Extra check for TLS: base. */ |
1141 | if (*input_line_pointer == '@') | |
1142 | { | |
1143 | symbolS *base; | |
1144 | if (tok->X_op_symbol != NULL | |
1145 | || tok->X_op != O_symbol) | |
252b5132 | 1146 | { |
6f4b1afc CM |
1147 | as_bad (_("Unable to parse TLS base: %s"), |
1148 | input_line_pointer); | |
886a2506 | 1149 | goto err; |
252b5132 | 1150 | } |
886a2506 NC |
1151 | input_line_pointer++; |
1152 | char *sym_name; | |
6f4b1afc | 1153 | c = get_symbol_name (&sym_name); |
886a2506 NC |
1154 | base = symbol_find_or_make (sym_name); |
1155 | tok->X_op = O_subtract; | |
1156 | tok->X_op_symbol = base; | |
1157 | restore_line_pointer (c); | |
6f4b1afc CM |
1158 | tmpE.X_add_number = 0; |
1159 | } | |
32348c58 | 1160 | if ((*input_line_pointer != '+') |
6f4b1afc CM |
1161 | && (*input_line_pointer != '-')) |
1162 | { | |
1163 | tmpE.X_add_number = 0; | |
ea1562b3 | 1164 | } |
6f4b1afc CM |
1165 | else |
1166 | { | |
1167 | /* Parse the constant of a complex relocation expression | |
1168 | like @identifier@reloc +/- const. */ | |
1169 | if (! r->complex_expr) | |
1170 | { | |
1171 | as_bad (_("@%s is not a complex relocation."), r->name); | |
1172 | goto err; | |
1173 | } | |
1174 | expression (&tmpE); | |
1175 | if (tmpE.X_op != O_constant) | |
1176 | { | |
1177 | as_bad (_("Bad expression: @%s + %s."), | |
1178 | r->name, input_line_pointer); | |
1179 | goto err; | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | tok->X_md = r->op; | |
1184 | tok->X_add_number = tmpE.X_add_number; | |
1e07b820 | 1185 | |
886a2506 | 1186 | debug_exp (tok); |
ea1562b3 | 1187 | |
886a2506 NC |
1188 | saw_comma = FALSE; |
1189 | saw_arg = TRUE; | |
1190 | tok++; | |
1191 | num_args++; | |
1192 | break; | |
252b5132 | 1193 | |
886a2506 NC |
1194 | case '%': |
1195 | /* Can be a register. */ | |
1196 | ++input_line_pointer; | |
1197 | /* Fall through. */ | |
1198 | default: | |
252b5132 | 1199 | |
3b889a78 | 1200 | if ((saw_arg && !saw_comma) || num_args == ntok) |
886a2506 | 1201 | goto err; |
252b5132 | 1202 | |
886a2506 | 1203 | tok->X_op = O_absent; |
6f4b1afc | 1204 | tok->X_md = O_absent; |
886a2506 | 1205 | expression (tok); |
252b5132 | 1206 | |
6f4b1afc CM |
1207 | /* Legacy: There are cases when we have |
1208 | identifier@relocation_type, if it is the case parse the | |
1209 | relocation type as well. */ | |
1210 | if (*input_line_pointer == '@') | |
1211 | goto relocationsym; | |
1212 | ||
886a2506 NC |
1213 | normalsymbol: |
1214 | debug_exp (tok); | |
252b5132 | 1215 | |
3b889a78 AB |
1216 | if (tok->X_op == O_illegal |
1217 | || tok->X_op == O_absent | |
1218 | || num_args == ntok) | |
886a2506 | 1219 | goto err; |
252b5132 | 1220 | |
886a2506 NC |
1221 | saw_comma = FALSE; |
1222 | saw_arg = TRUE; | |
1223 | tok++; | |
1224 | num_args++; | |
1225 | break; | |
1226 | } | |
ea1562b3 | 1227 | } |
252b5132 | 1228 | |
886a2506 NC |
1229 | fini: |
1230 | if (saw_comma || brk_lvl) | |
1231 | goto err; | |
1232 | input_line_pointer = old_input_line_pointer; | |
252b5132 | 1233 | |
886a2506 | 1234 | return num_args; |
252b5132 | 1235 | |
886a2506 NC |
1236 | err: |
1237 | if (brk_lvl) | |
1238 | as_bad (_("Brackets in operand field incorrect")); | |
1239 | else if (saw_comma) | |
1240 | as_bad (_("extra comma")); | |
1241 | else if (!saw_arg) | |
1242 | as_bad (_("missing argument")); | |
1243 | else | |
1244 | as_bad (_("missing comma or colon")); | |
1245 | input_line_pointer = old_input_line_pointer; | |
1246 | return -1; | |
252b5132 | 1247 | } |
ea1562b3 | 1248 | |
886a2506 NC |
1249 | /* Parse the flags to a structure. */ |
1250 | ||
1251 | static int | |
1252 | tokenize_flags (const char *str, | |
1253 | struct arc_flags flags[], | |
1254 | int nflg) | |
252b5132 | 1255 | { |
886a2506 NC |
1256 | char *old_input_line_pointer; |
1257 | bfd_boolean saw_flg = FALSE; | |
1258 | bfd_boolean saw_dot = FALSE; | |
1259 | int num_flags = 0; | |
1260 | size_t flgnamelen; | |
252b5132 | 1261 | |
886a2506 | 1262 | memset (flags, 0, sizeof (*flags) * nflg); |
0d2bcfaf | 1263 | |
886a2506 NC |
1264 | /* Save and restore input_line_pointer around this function. */ |
1265 | old_input_line_pointer = input_line_pointer; | |
1266 | input_line_pointer = (char *) str; | |
0d2bcfaf | 1267 | |
886a2506 NC |
1268 | while (*input_line_pointer) |
1269 | { | |
1270 | switch (*input_line_pointer) | |
1271 | { | |
1272 | case ' ': | |
1273 | case '\0': | |
1274 | goto fini; | |
1275 | ||
1276 | case '.': | |
1277 | input_line_pointer++; | |
1278 | if (saw_dot) | |
1279 | goto err; | |
1280 | saw_dot = TRUE; | |
1281 | saw_flg = FALSE; | |
1282 | break; | |
ea1562b3 | 1283 | |
886a2506 NC |
1284 | default: |
1285 | if (saw_flg && !saw_dot) | |
1286 | goto err; | |
0d2bcfaf | 1287 | |
886a2506 NC |
1288 | if (num_flags >= nflg) |
1289 | goto err; | |
0d2bcfaf | 1290 | |
692166c2 AB |
1291 | flgnamelen = strspn (input_line_pointer, |
1292 | "abcdefghijklmnopqrstuvwxyz0123456789"); | |
83cda17b | 1293 | if (flgnamelen > MAX_FLAG_NAME_LENGTH) |
886a2506 | 1294 | goto err; |
0d2bcfaf | 1295 | |
886a2506 | 1296 | memcpy (flags->name, input_line_pointer, flgnamelen); |
0d2bcfaf | 1297 | |
886a2506 NC |
1298 | input_line_pointer += flgnamelen; |
1299 | flags++; | |
1300 | saw_dot = FALSE; | |
1301 | saw_flg = TRUE; | |
1302 | num_flags++; | |
1303 | break; | |
1e07b820 | 1304 | } |
0d2bcfaf NC |
1305 | } |
1306 | ||
886a2506 NC |
1307 | fini: |
1308 | input_line_pointer = old_input_line_pointer; | |
1309 | return num_flags; | |
0d2bcfaf | 1310 | |
886a2506 NC |
1311 | err: |
1312 | if (saw_dot) | |
1313 | as_bad (_("extra dot")); | |
1314 | else if (!saw_flg) | |
1315 | as_bad (_("unrecognized flag")); | |
1316 | else | |
1317 | as_bad (_("failed to parse flags")); | |
1318 | input_line_pointer = old_input_line_pointer; | |
1319 | return -1; | |
1320 | } | |
0d2bcfaf | 1321 | |
4670103e | 1322 | /* Apply the fixups in order. */ |
0d2bcfaf | 1323 | |
4670103e CZ |
1324 | static void |
1325 | apply_fixups (struct arc_insn *insn, fragS *fragP, int fix) | |
886a2506 | 1326 | { |
4670103e | 1327 | int i; |
0d2bcfaf | 1328 | |
4670103e | 1329 | for (i = 0; i < insn->nfixups; i++) |
252b5132 | 1330 | { |
4670103e CZ |
1331 | struct arc_fixup *fixup = &insn->fixups[i]; |
1332 | int size, pcrel, offset = 0; | |
0d2bcfaf | 1333 | |
4670103e CZ |
1334 | /* FIXME! the reloc size is wrong in the BFD file. |
1335 | When it is fixed please delete me. */ | |
1336 | size = (insn->short_insn && !fixup->islong) ? 2 : 4; | |
0d2bcfaf | 1337 | |
4670103e CZ |
1338 | if (fixup->islong) |
1339 | offset = (insn->short_insn) ? 2 : 4; | |
252b5132 | 1340 | |
4670103e CZ |
1341 | /* Some fixups are only used internally, thus no howto. */ |
1342 | if ((int) fixup->reloc == 0) | |
1343 | as_fatal (_("Unhandled reloc type")); | |
886a2506 | 1344 | |
4670103e CZ |
1345 | if ((int) fixup->reloc < 0) |
1346 | { | |
1347 | /* FIXME! the reloc size is wrong in the BFD file. | |
1348 | When it is fixed please enable me. | |
1349 | size = (insn->short_insn && !fixup->islong) ? 2 : 4; */ | |
1350 | pcrel = fixup->pcrel; | |
1351 | } | |
1352 | else | |
1353 | { | |
1354 | reloc_howto_type *reloc_howto = | |
1355 | bfd_reloc_type_lookup (stdoutput, | |
1356 | (bfd_reloc_code_real_type) fixup->reloc); | |
1357 | gas_assert (reloc_howto); | |
0d2bcfaf | 1358 | |
4670103e CZ |
1359 | /* FIXME! the reloc size is wrong in the BFD file. |
1360 | When it is fixed please enable me. | |
1361 | size = bfd_get_reloc_size (reloc_howto); */ | |
1362 | pcrel = reloc_howto->pc_relative; | |
1363 | } | |
0d2bcfaf | 1364 | |
4670103e CZ |
1365 | pr_debug ("%s:%d: apply_fixups: new %s fixup (PCrel:%s) of size %d @ \ |
1366 | offset %d + %d\n", | |
1367 | fragP->fr_file, fragP->fr_line, | |
1368 | (fixup->reloc < 0) ? "Internal" : | |
1369 | bfd_get_reloc_code_name (fixup->reloc), | |
1370 | pcrel ? "Y" : "N", | |
1371 | size, fix, offset); | |
1372 | fix_new_exp (fragP, fix + offset, | |
1373 | size, &fixup->exp, pcrel, fixup->reloc); | |
0d2bcfaf | 1374 | |
4670103e CZ |
1375 | /* Check for ZOLs, and update symbol info if any. */ |
1376 | if (LP_INSN (insn->insn)) | |
886a2506 | 1377 | { |
4670103e CZ |
1378 | gas_assert (fixup->exp.X_add_symbol); |
1379 | ARC_SET_FLAG (fixup->exp.X_add_symbol, ARC_FLAG_ZOL); | |
886a2506 NC |
1380 | } |
1381 | } | |
252b5132 RH |
1382 | } |
1383 | ||
4670103e | 1384 | /* Actually output an instruction with its fixup. */ |
886a2506 | 1385 | |
4670103e CZ |
1386 | static void |
1387 | emit_insn0 (struct arc_insn *insn, char *where, bfd_boolean relax) | |
252b5132 | 1388 | { |
4670103e | 1389 | char *f = where; |
252b5132 | 1390 | |
4670103e CZ |
1391 | pr_debug ("Emit insn : 0x%x\n", insn->insn); |
1392 | pr_debug ("\tShort : 0x%d\n", insn->short_insn); | |
1393 | pr_debug ("\tLong imm: 0x%lx\n", insn->limm); | |
0d2bcfaf | 1394 | |
4670103e CZ |
1395 | /* Write out the instruction. */ |
1396 | if (insn->short_insn) | |
0d2bcfaf | 1397 | { |
4670103e CZ |
1398 | if (insn->has_limm) |
1399 | { | |
1400 | if (!relax) | |
1401 | f = frag_more (6); | |
1402 | md_number_to_chars (f, insn->insn, 2); | |
1403 | md_number_to_chars_midend (f + 2, insn->limm, 4); | |
1404 | dwarf2_emit_insn (6); | |
1405 | } | |
1406 | else | |
1407 | { | |
1408 | if (!relax) | |
1409 | f = frag_more (2); | |
1410 | md_number_to_chars (f, insn->insn, 2); | |
1411 | dwarf2_emit_insn (2); | |
1412 | } | |
1413 | } | |
1414 | else | |
1415 | { | |
1416 | if (insn->has_limm) | |
1417 | { | |
1418 | if (!relax) | |
1419 | f = frag_more (8); | |
1420 | md_number_to_chars_midend (f, insn->insn, 4); | |
1421 | md_number_to_chars_midend (f + 4, insn->limm, 4); | |
1422 | dwarf2_emit_insn (8); | |
1423 | } | |
1424 | else | |
1425 | { | |
1426 | if (!relax) | |
1427 | f = frag_more (4); | |
1428 | md_number_to_chars_midend (f, insn->insn, 4); | |
1429 | dwarf2_emit_insn (4); | |
1430 | } | |
252b5132 | 1431 | } |
252b5132 | 1432 | |
4670103e CZ |
1433 | if (!relax) |
1434 | apply_fixups (insn, frag_now, (f - frag_now->fr_literal)); | |
1435 | } | |
252b5132 | 1436 | |
4670103e CZ |
1437 | static void |
1438 | emit_insn1 (struct arc_insn *insn) | |
1439 | { | |
1440 | /* How frag_var's args are currently configured: | |
1441 | - rs_machine_dependent, to dictate it's a relaxation frag. | |
1442 | - FRAG_MAX_GROWTH, maximum size of instruction | |
1443 | - 0, variable size that might grow...unused by generic relaxation. | |
1444 | - frag_now->fr_subtype, fr_subtype starting value, set previously. | |
1445 | - s, opand expression. | |
1446 | - 0, offset but it's unused. | |
1447 | - 0, opcode but it's unused. */ | |
1448 | symbolS *s = make_expr_symbol (&insn->fixups[0].exp); | |
1449 | frag_now->tc_frag_data.pcrel = insn->fixups[0].pcrel; | |
1450 | ||
1451 | if (frag_room () < FRAG_MAX_GROWTH) | |
1452 | { | |
1453 | /* Handle differently when frag literal memory is exhausted. | |
1454 | This is used because when there's not enough memory left in | |
1455 | the current frag, a new frag is created and the information | |
1456 | we put into frag_now->tc_frag_data is disregarded. */ | |
252b5132 | 1457 | |
4670103e CZ |
1458 | struct arc_relax_type relax_info_copy; |
1459 | relax_substateT subtype = frag_now->fr_subtype; | |
252b5132 | 1460 | |
4670103e CZ |
1461 | memcpy (&relax_info_copy, &frag_now->tc_frag_data, |
1462 | sizeof (struct arc_relax_type)); | |
0d2bcfaf | 1463 | |
4670103e CZ |
1464 | frag_wane (frag_now); |
1465 | frag_grow (FRAG_MAX_GROWTH); | |
0d2bcfaf | 1466 | |
4670103e CZ |
1467 | memcpy (&frag_now->tc_frag_data, &relax_info_copy, |
1468 | sizeof (struct arc_relax_type)); | |
252b5132 | 1469 | |
4670103e CZ |
1470 | frag_var (rs_machine_dependent, FRAG_MAX_GROWTH, 0, |
1471 | subtype, s, 0, 0); | |
1472 | } | |
1473 | else | |
1474 | frag_var (rs_machine_dependent, FRAG_MAX_GROWTH, 0, | |
1475 | frag_now->fr_subtype, s, 0, 0); | |
1476 | } | |
252b5132 | 1477 | |
4670103e CZ |
1478 | static void |
1479 | emit_insn (struct arc_insn *insn) | |
252b5132 | 1480 | { |
4670103e CZ |
1481 | if (insn->relax) |
1482 | emit_insn1 (insn); | |
252b5132 | 1483 | else |
4670103e | 1484 | emit_insn0 (insn, NULL, FALSE); |
252b5132 RH |
1485 | } |
1486 | ||
4670103e | 1487 | /* Check whether a symbol involves a register. */ |
252b5132 | 1488 | |
4670103e CZ |
1489 | static bfd_boolean |
1490 | contains_register (symbolS *sym) | |
252b5132 | 1491 | { |
4670103e CZ |
1492 | if (sym) |
1493 | { | |
1494 | expressionS *ex = symbol_get_value_expression (sym); | |
252b5132 | 1495 | |
4670103e CZ |
1496 | return ((O_register == ex->X_op) |
1497 | && !contains_register (ex->X_add_symbol) | |
1498 | && !contains_register (ex->X_op_symbol)); | |
1499 | } | |
1500 | ||
1501 | return FALSE; | |
252b5132 RH |
1502 | } |
1503 | ||
4670103e | 1504 | /* Returns the register number within a symbol. */ |
252b5132 | 1505 | |
4670103e CZ |
1506 | static int |
1507 | get_register (symbolS *sym) | |
252b5132 | 1508 | { |
4670103e CZ |
1509 | if (!contains_register (sym)) |
1510 | return -1; | |
0d2bcfaf | 1511 | |
4670103e CZ |
1512 | expressionS *ex = symbol_get_value_expression (sym); |
1513 | return regno (ex->X_add_number); | |
1514 | } | |
252b5132 | 1515 | |
4670103e CZ |
1516 | /* Return true if a RELOC is generic. A generic reloc is PC-rel of a |
1517 | simple ME relocation (e.g. RELOC_ARC_32_ME, BFD_RELOC_ARC_PC32. */ | |
f17c130b | 1518 | |
4670103e CZ |
1519 | static bfd_boolean |
1520 | generic_reloc_p (extended_bfd_reloc_code_real_type reloc) | |
1521 | { | |
1522 | if (!reloc) | |
1523 | return FALSE; | |
886a2506 | 1524 | |
4670103e CZ |
1525 | switch (reloc) |
1526 | { | |
1527 | case BFD_RELOC_ARC_SDA_LDST: | |
1528 | case BFD_RELOC_ARC_SDA_LDST1: | |
1529 | case BFD_RELOC_ARC_SDA_LDST2: | |
1530 | case BFD_RELOC_ARC_SDA16_LD: | |
1531 | case BFD_RELOC_ARC_SDA16_LD1: | |
1532 | case BFD_RELOC_ARC_SDA16_LD2: | |
1533 | case BFD_RELOC_ARC_SDA16_ST2: | |
1534 | case BFD_RELOC_ARC_SDA32_ME: | |
1535 | return FALSE; | |
1536 | default: | |
1537 | return TRUE; | |
f17c130b | 1538 | } |
252b5132 RH |
1539 | } |
1540 | ||
4670103e | 1541 | /* Allocates a tok entry. */ |
252b5132 | 1542 | |
4670103e CZ |
1543 | static int |
1544 | allocate_tok (expressionS *tok, int ntok, int cidx) | |
252b5132 | 1545 | { |
4670103e CZ |
1546 | if (ntok > MAX_INSN_ARGS - 2) |
1547 | return 0; /* No space left. */ | |
252b5132 | 1548 | |
4670103e CZ |
1549 | if (cidx > ntok) |
1550 | return 0; /* Incorect args. */ | |
252b5132 | 1551 | |
4670103e | 1552 | memcpy (&tok[ntok+1], &tok[ntok], sizeof (*tok)); |
252b5132 | 1553 | |
4670103e CZ |
1554 | if (cidx == ntok) |
1555 | return 1; /* Success. */ | |
1556 | return allocate_tok (tok, ntok - 1, cidx); | |
1557 | } | |
886a2506 | 1558 | |
8ddf6b2a CZ |
1559 | /* Check if an particular ARC feature is enabled. */ |
1560 | ||
1561 | static bfd_boolean | |
1562 | check_cpu_feature (insn_subclass_t sc) | |
1563 | { | |
bdd582db | 1564 | if (is_code_density_p (sc) && !(arc_features & ARC_CD)) |
8ddf6b2a CZ |
1565 | return FALSE; |
1566 | ||
bdd582db | 1567 | if (is_spfp_p (sc) && !(arc_features & ARC_SPFP)) |
8ddf6b2a CZ |
1568 | return FALSE; |
1569 | ||
bdd582db | 1570 | if (is_dpfp_p (sc) && !(arc_features & ARC_DPFP)) |
8ddf6b2a CZ |
1571 | return FALSE; |
1572 | ||
bdd582db GM |
1573 | if (is_fpuda_p (sc) && !(arc_features & ARC_FPUDA)) |
1574 | return FALSE; | |
1575 | ||
1576 | if (is_nps400_p (sc) && !(arc_features & ARC_NPS400)) | |
8ddf6b2a CZ |
1577 | return FALSE; |
1578 | ||
1579 | return TRUE; | |
1580 | } | |
1581 | ||
4eb6f892 AB |
1582 | /* Parse the flags described by FIRST_PFLAG and NFLGS against the flag |
1583 | operands in OPCODE. Stores the matching OPCODES into the FIRST_PFLAG | |
1584 | array and returns TRUE if the flag operands all match, otherwise, | |
1585 | returns FALSE, in which case the FIRST_PFLAG array may have been | |
1586 | modified. */ | |
1587 | ||
1588 | static bfd_boolean | |
1589 | parse_opcode_flags (const struct arc_opcode *opcode, | |
1590 | int nflgs, | |
1591 | struct arc_flags *first_pflag) | |
1592 | { | |
1593 | int lnflg, i; | |
1594 | const unsigned char *flgidx; | |
1595 | ||
1596 | lnflg = nflgs; | |
1597 | for (i = 0; i < nflgs; i++) | |
1598 | first_pflag[i].flgp = NULL; | |
1599 | ||
1600 | /* Check the flags. Iterate over the valid flag classes. */ | |
1601 | for (flgidx = opcode->flags; *flgidx; ++flgidx) | |
1602 | { | |
1603 | /* Get a valid flag class. */ | |
1604 | const struct arc_flag_class *cl_flags = &arc_flag_classes[*flgidx]; | |
1605 | const unsigned *flgopridx; | |
1606 | int cl_matches = 0; | |
1607 | struct arc_flags *pflag = NULL; | |
1608 | ||
1609 | /* Check for extension conditional codes. */ | |
1610 | if (ext_condcode.arc_ext_condcode | |
1611 | && cl_flags->flag_class & F_CLASS_EXTEND) | |
1612 | { | |
1613 | struct arc_flag_operand *pf = ext_condcode.arc_ext_condcode; | |
1614 | while (pf->name) | |
1615 | { | |
1616 | pflag = first_pflag; | |
1617 | for (i = 0; i < nflgs; i++, pflag++) | |
1618 | { | |
1619 | if (!strcmp (pf->name, pflag->name)) | |
1620 | { | |
1621 | if (pflag->flgp != NULL) | |
1622 | return FALSE; | |
1623 | /* Found it. */ | |
1624 | cl_matches++; | |
1625 | pflag->flgp = pf; | |
1626 | lnflg--; | |
1627 | break; | |
1628 | } | |
1629 | } | |
1630 | pf++; | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | for (flgopridx = cl_flags->flags; *flgopridx; ++flgopridx) | |
1635 | { | |
1636 | const struct arc_flag_operand *flg_operand; | |
1637 | ||
1638 | pflag = first_pflag; | |
1639 | flg_operand = &arc_flag_operands[*flgopridx]; | |
1640 | for (i = 0; i < nflgs; i++, pflag++) | |
1641 | { | |
1642 | /* Match against the parsed flags. */ | |
1643 | if (!strcmp (flg_operand->name, pflag->name)) | |
1644 | { | |
1645 | if (pflag->flgp != NULL) | |
1646 | return FALSE; | |
1647 | cl_matches++; | |
1648 | pflag->flgp = flg_operand; | |
1649 | lnflg--; | |
1650 | break; /* goto next flag class and parsed flag. */ | |
1651 | } | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | if ((cl_flags->flag_class & F_CLASS_REQUIRED) && cl_matches == 0) | |
1656 | return FALSE; | |
1657 | if ((cl_flags->flag_class & F_CLASS_OPTIONAL) && cl_matches > 1) | |
1658 | return FALSE; | |
1659 | } | |
1660 | ||
1661 | /* Did I check all the parsed flags? */ | |
1662 | return lnflg ? FALSE : TRUE; | |
1663 | } | |
1664 | ||
1665 | ||
4670103e CZ |
1666 | /* Search forward through all variants of an opcode looking for a |
1667 | syntax match. */ | |
886a2506 | 1668 | |
4670103e | 1669 | static const struct arc_opcode * |
b9b47ab7 | 1670 | find_opcode_match (const struct arc_opcode_hash_entry *entry, |
4670103e CZ |
1671 | expressionS *tok, |
1672 | int *pntok, | |
1673 | struct arc_flags *first_pflag, | |
1674 | int nflgs, | |
1675 | int *pcpumatch) | |
1676 | { | |
1328504b AB |
1677 | const struct arc_opcode *opcode; |
1678 | struct arc_opcode_hash_entry_iterator iter; | |
4670103e CZ |
1679 | int ntok = *pntok; |
1680 | int got_cpu_match = 0; | |
1681 | expressionS bktok[MAX_INSN_ARGS]; | |
1682 | int bkntok; | |
1683 | expressionS emptyE; | |
886a2506 | 1684 | |
1328504b | 1685 | arc_opcode_hash_entry_iterator_init (&iter); |
4670103e CZ |
1686 | memset (&emptyE, 0, sizeof (emptyE)); |
1687 | memcpy (bktok, tok, MAX_INSN_ARGS * sizeof (*tok)); | |
1688 | bkntok = ntok; | |
a161fe53 | 1689 | |
1328504b AB |
1690 | for (opcode = arc_opcode_hash_entry_iterator_next (entry, &iter); |
1691 | opcode != NULL; | |
1692 | opcode = arc_opcode_hash_entry_iterator_next (entry, &iter)) | |
252b5132 | 1693 | { |
4670103e | 1694 | const unsigned char *opidx; |
4eb6f892 | 1695 | int tokidx = 0; |
4670103e | 1696 | const expressionS *t = &emptyE; |
252b5132 | 1697 | |
4670103e CZ |
1698 | pr_debug ("%s:%d: find_opcode_match: trying opcode 0x%08X ", |
1699 | frag_now->fr_file, frag_now->fr_line, opcode->opcode); | |
886a2506 | 1700 | |
4670103e CZ |
1701 | /* Don't match opcodes that don't exist on this |
1702 | architecture. */ | |
1703 | if (!(opcode->cpu & arc_target)) | |
1704 | goto match_failed; | |
886a2506 | 1705 | |
8ddf6b2a | 1706 | if (!check_cpu_feature (opcode->subclass)) |
4670103e | 1707 | goto match_failed; |
886a2506 | 1708 | |
4670103e CZ |
1709 | got_cpu_match = 1; |
1710 | pr_debug ("cpu "); | |
886a2506 | 1711 | |
4670103e CZ |
1712 | /* Check the operands. */ |
1713 | for (opidx = opcode->operands; *opidx; ++opidx) | |
252b5132 | 1714 | { |
4670103e | 1715 | const struct arc_operand *operand = &arc_operands[*opidx]; |
252b5132 | 1716 | |
4670103e | 1717 | /* Only take input from real operands. */ |
db18dbab | 1718 | if (ARC_OPERAND_IS_FAKE (operand)) |
4670103e | 1719 | continue; |
252b5132 | 1720 | |
4670103e CZ |
1721 | /* When we expect input, make sure we have it. */ |
1722 | if (tokidx >= ntok) | |
1723 | goto match_failed; | |
6f4b1afc | 1724 | |
4670103e CZ |
1725 | /* Match operand type with expression type. */ |
1726 | switch (operand->flags & ARC_OPERAND_TYPECHECK_MASK) | |
1727 | { | |
db18dbab GM |
1728 | case ARC_OPERAND_ADDRTYPE: |
1729 | /* Check to be an address type. */ | |
1730 | if (tok[tokidx].X_op != O_addrtype) | |
1731 | goto match_failed; | |
1732 | break; | |
1733 | ||
4670103e CZ |
1734 | case ARC_OPERAND_IR: |
1735 | /* Check to be a register. */ | |
1736 | if ((tok[tokidx].X_op != O_register | |
1737 | || !is_ir_num (tok[tokidx].X_add_number)) | |
1738 | && !(operand->flags & ARC_OPERAND_IGNORE)) | |
1739 | goto match_failed; | |
1740 | ||
1741 | /* If expect duplicate, make sure it is duplicate. */ | |
1742 | if (operand->flags & ARC_OPERAND_DUPLICATE) | |
1743 | { | |
1744 | /* Check for duplicate. */ | |
1745 | if (t->X_op != O_register | |
1746 | || !is_ir_num (t->X_add_number) | |
1747 | || (regno (t->X_add_number) != | |
1748 | regno (tok[tokidx].X_add_number))) | |
1749 | goto match_failed; | |
1750 | } | |
1751 | ||
1752 | /* Special handling? */ | |
1753 | if (operand->insert) | |
1754 | { | |
1755 | const char *errmsg = NULL; | |
1756 | (*operand->insert)(0, | |
1757 | regno (tok[tokidx].X_add_number), | |
1758 | &errmsg); | |
1759 | if (errmsg) | |
1760 | { | |
1761 | if (operand->flags & ARC_OPERAND_IGNORE) | |
1762 | { | |
1763 | /* Missing argument, create one. */ | |
1764 | if (!allocate_tok (tok, ntok - 1, tokidx)) | |
1765 | goto match_failed; | |
1766 | ||
1767 | tok[tokidx].X_op = O_absent; | |
1768 | ++ntok; | |
1769 | } | |
1770 | else | |
1771 | goto match_failed; | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | t = &tok[tokidx]; | |
1776 | break; | |
1777 | ||
1778 | case ARC_OPERAND_BRAKET: | |
1779 | /* Check if bracket is also in opcode table as | |
1780 | operand. */ | |
1781 | if (tok[tokidx].X_op != O_bracket) | |
1782 | goto match_failed; | |
1783 | break; | |
1784 | ||
db18dbab GM |
1785 | case ARC_OPERAND_COLON: |
1786 | /* Check if colon is also in opcode table as operand. */ | |
1787 | if (tok[tokidx].X_op != O_colon) | |
1788 | goto match_failed; | |
1789 | break; | |
1790 | ||
4670103e CZ |
1791 | case ARC_OPERAND_LIMM: |
1792 | case ARC_OPERAND_SIGNED: | |
1793 | case ARC_OPERAND_UNSIGNED: | |
1794 | switch (tok[tokidx].X_op) | |
1795 | { | |
1796 | case O_illegal: | |
1797 | case O_absent: | |
1798 | case O_register: | |
1799 | goto match_failed; | |
1800 | ||
1801 | case O_bracket: | |
1802 | /* Got an (too) early bracket, check if it is an | |
1803 | ignored operand. N.B. This procedure works only | |
1804 | when bracket is the last operand! */ | |
1805 | if (!(operand->flags & ARC_OPERAND_IGNORE)) | |
1806 | goto match_failed; | |
1807 | /* Insert the missing operand. */ | |
1808 | if (!allocate_tok (tok, ntok - 1, tokidx)) | |
1809 | goto match_failed; | |
1810 | ||
1811 | tok[tokidx].X_op = O_absent; | |
1812 | ++ntok; | |
1813 | break; | |
1814 | ||
22b92fc4 AB |
1815 | case O_symbol: |
1816 | { | |
1817 | const char *p; | |
22b92fc4 | 1818 | const struct arc_aux_reg *auxr; |
22b92fc4 | 1819 | |
c810e0b8 | 1820 | if (opcode->insn_class != AUXREG) |
22b92fc4 AB |
1821 | goto de_fault; |
1822 | p = S_GET_NAME (tok[tokidx].X_add_symbol); | |
f36e33da CZ |
1823 | |
1824 | auxr = hash_find (arc_aux_hash, p); | |
1825 | if (auxr) | |
1826 | { | |
1827 | /* We modify the token array here, safe in the | |
1828 | knowledge, that if this was the wrong | |
1829 | choice then the original contents will be | |
1830 | restored from BKTOK. */ | |
1831 | tok[tokidx].X_op = O_constant; | |
1832 | tok[tokidx].X_add_number = auxr->address; | |
1833 | ARC_SET_FLAG (tok[tokidx].X_add_symbol, ARC_FLAG_AUX); | |
1834 | } | |
22b92fc4 AB |
1835 | |
1836 | if (tok[tokidx].X_op != O_constant) | |
1837 | goto de_fault; | |
1838 | } | |
1839 | /* Fall-through */ | |
4670103e CZ |
1840 | case O_constant: |
1841 | /* Check the range. */ | |
1842 | if (operand->bits != 32 | |
1843 | && !(operand->flags & ARC_OPERAND_NCHK)) | |
1844 | { | |
1845 | offsetT min, max, val; | |
1846 | val = tok[tokidx].X_add_number; | |
1847 | ||
1848 | if (operand->flags & ARC_OPERAND_SIGNED) | |
1849 | { | |
1850 | max = (1 << (operand->bits - 1)) - 1; | |
1851 | min = -(1 << (operand->bits - 1)); | |
1852 | } | |
1853 | else | |
1854 | { | |
1855 | max = (1 << operand->bits) - 1; | |
1856 | min = 0; | |
1857 | } | |
1858 | ||
1859 | if (val < min || val > max) | |
1860 | goto match_failed; | |
1861 | ||
1862 | /* Check alignmets. */ | |
1863 | if ((operand->flags & ARC_OPERAND_ALIGNED32) | |
1864 | && (val & 0x03)) | |
1865 | goto match_failed; | |
1866 | ||
1867 | if ((operand->flags & ARC_OPERAND_ALIGNED16) | |
1868 | && (val & 0x01)) | |
1869 | goto match_failed; | |
1870 | } | |
1871 | else if (operand->flags & ARC_OPERAND_NCHK) | |
1872 | { | |
1873 | if (operand->insert) | |
1874 | { | |
1875 | const char *errmsg = NULL; | |
1876 | (*operand->insert)(0, | |
1877 | tok[tokidx].X_add_number, | |
1878 | &errmsg); | |
1879 | if (errmsg) | |
1880 | goto match_failed; | |
1881 | } | |
4eb6f892 | 1882 | else if (!(operand->flags & ARC_OPERAND_IGNORE)) |
4670103e CZ |
1883 | goto match_failed; |
1884 | } | |
1885 | break; | |
1886 | ||
1887 | case O_subtract: | |
1888 | /* Check if it is register range. */ | |
1889 | if ((tok[tokidx].X_add_number == 0) | |
1890 | && contains_register (tok[tokidx].X_add_symbol) | |
1891 | && contains_register (tok[tokidx].X_op_symbol)) | |
1892 | { | |
1893 | int regs; | |
1894 | ||
1895 | regs = get_register (tok[tokidx].X_add_symbol); | |
1896 | regs <<= 16; | |
1897 | regs |= get_register (tok[tokidx].X_op_symbol); | |
1898 | if (operand->insert) | |
1899 | { | |
1900 | const char *errmsg = NULL; | |
1901 | (*operand->insert)(0, | |
1902 | regs, | |
1903 | &errmsg); | |
1904 | if (errmsg) | |
1905 | goto match_failed; | |
1906 | } | |
1907 | else | |
1908 | goto match_failed; | |
1909 | break; | |
1910 | } | |
1911 | default: | |
22b92fc4 | 1912 | de_fault: |
4670103e CZ |
1913 | if (operand->default_reloc == 0) |
1914 | goto match_failed; /* The operand needs relocation. */ | |
1915 | ||
1916 | /* Relocs requiring long immediate. FIXME! make it | |
1917 | generic and move it to a function. */ | |
1918 | switch (tok[tokidx].X_md) | |
1919 | { | |
1920 | case O_gotoff: | |
1921 | case O_gotpc: | |
1922 | case O_pcl: | |
1923 | case O_tpoff: | |
1924 | case O_dtpoff: | |
1925 | case O_tlsgd: | |
1926 | case O_tlsie: | |
1927 | if (!(operand->flags & ARC_OPERAND_LIMM)) | |
1928 | goto match_failed; | |
1929 | case O_absent: | |
1930 | if (!generic_reloc_p (operand->default_reloc)) | |
1931 | goto match_failed; | |
1932 | default: | |
1933 | break; | |
1934 | } | |
1935 | break; | |
1936 | } | |
1937 | /* If expect duplicate, make sure it is duplicate. */ | |
1938 | if (operand->flags & ARC_OPERAND_DUPLICATE) | |
1939 | { | |
1940 | if (t->X_op == O_illegal | |
1941 | || t->X_op == O_absent | |
1942 | || t->X_op == O_register | |
1943 | || (t->X_add_number != tok[tokidx].X_add_number)) | |
1944 | goto match_failed; | |
1945 | } | |
1946 | t = &tok[tokidx]; | |
1947 | break; | |
1948 | ||
1949 | default: | |
1950 | /* Everything else should have been fake. */ | |
1951 | abort (); | |
1952 | } | |
1953 | ||
1954 | ++tokidx; | |
1955 | } | |
1956 | pr_debug ("opr "); | |
1957 | ||
1ae8ab47 | 1958 | /* Setup ready for flag parsing. */ |
4eb6f892 | 1959 | if (!parse_opcode_flags (opcode, nflgs, first_pflag)) |
4670103e CZ |
1960 | goto match_failed; |
1961 | ||
1962 | pr_debug ("flg"); | |
1963 | /* Possible match -- did we use all of our input? */ | |
1964 | if (tokidx == ntok) | |
1965 | { | |
1966 | *pntok = ntok; | |
1967 | pr_debug ("\n"); | |
1968 | return opcode; | |
1969 | } | |
1970 | ||
1971 | match_failed:; | |
1972 | pr_debug ("\n"); | |
1973 | /* Restore the original parameters. */ | |
1974 | memcpy (tok, bktok, MAX_INSN_ARGS * sizeof (*tok)); | |
1975 | ntok = bkntok; | |
1976 | } | |
4670103e CZ |
1977 | |
1978 | if (*pcpumatch) | |
1979 | *pcpumatch = got_cpu_match; | |
1980 | ||
1981 | return NULL; | |
1982 | } | |
1983 | ||
1984 | /* Swap operand tokens. */ | |
1985 | ||
1986 | static void | |
1987 | swap_operand (expressionS *operand_array, | |
1988 | unsigned source, | |
1989 | unsigned destination) | |
1990 | { | |
1991 | expressionS cpy_operand; | |
1992 | expressionS *src_operand; | |
1993 | expressionS *dst_operand; | |
1994 | size_t size; | |
1995 | ||
1996 | if (source == destination) | |
1997 | return; | |
1998 | ||
1999 | src_operand = &operand_array[source]; | |
2000 | dst_operand = &operand_array[destination]; | |
2001 | size = sizeof (expressionS); | |
2002 | ||
2003 | /* Make copy of operand to swap with and swap. */ | |
2004 | memcpy (&cpy_operand, dst_operand, size); | |
2005 | memcpy (dst_operand, src_operand, size); | |
2006 | memcpy (src_operand, &cpy_operand, size); | |
2007 | } | |
2008 | ||
2009 | /* Check if *op matches *tok type. | |
2010 | Returns FALSE if they don't match, TRUE if they match. */ | |
2011 | ||
2012 | static bfd_boolean | |
2013 | pseudo_operand_match (const expressionS *tok, | |
2014 | const struct arc_operand_operation *op) | |
2015 | { | |
2016 | offsetT min, max, val; | |
2017 | bfd_boolean ret; | |
2018 | const struct arc_operand *operand_real = &arc_operands[op->operand_idx]; | |
2019 | ||
2020 | ret = FALSE; | |
2021 | switch (tok->X_op) | |
2022 | { | |
2023 | case O_constant: | |
2024 | if (operand_real->bits == 32 && (operand_real->flags & ARC_OPERAND_LIMM)) | |
2025 | ret = 1; | |
2026 | else if (!(operand_real->flags & ARC_OPERAND_IR)) | |
2027 | { | |
2028 | val = tok->X_add_number + op->count; | |
2029 | if (operand_real->flags & ARC_OPERAND_SIGNED) | |
2030 | { | |
2031 | max = (1 << (operand_real->bits - 1)) - 1; | |
2032 | min = -(1 << (operand_real->bits - 1)); | |
2033 | } | |
2034 | else | |
2035 | { | |
2036 | max = (1 << operand_real->bits) - 1; | |
2037 | min = 0; | |
2038 | } | |
2039 | if (min <= val && val <= max) | |
2040 | ret = TRUE; | |
2041 | } | |
6f4b1afc CM |
2042 | break; |
2043 | ||
4670103e CZ |
2044 | case O_symbol: |
2045 | /* Handle all symbols as long immediates or signed 9. */ | |
db18dbab GM |
2046 | if (operand_real->flags & ARC_OPERAND_LIMM |
2047 | || ((operand_real->flags & ARC_OPERAND_SIGNED) | |
2048 | && operand_real->bits == 9)) | |
4670103e | 2049 | ret = TRUE; |
6f4b1afc CM |
2050 | break; |
2051 | ||
4670103e CZ |
2052 | case O_register: |
2053 | if (operand_real->flags & ARC_OPERAND_IR) | |
2054 | ret = TRUE; | |
2055 | break; | |
2056 | ||
2057 | case O_bracket: | |
2058 | if (operand_real->flags & ARC_OPERAND_BRAKET) | |
2059 | ret = TRUE; | |
6f4b1afc CM |
2060 | break; |
2061 | ||
2062 | default: | |
4670103e | 2063 | /* Unknown. */ |
6f4b1afc CM |
2064 | break; |
2065 | } | |
4670103e CZ |
2066 | return ret; |
2067 | } | |
6f4b1afc | 2068 | |
4670103e CZ |
2069 | /* Find pseudo instruction in array. */ |
2070 | ||
2071 | static const struct arc_pseudo_insn * | |
2072 | find_pseudo_insn (const char *opname, | |
2073 | int ntok, | |
2074 | const expressionS *tok) | |
2075 | { | |
2076 | const struct arc_pseudo_insn *pseudo_insn = NULL; | |
2077 | const struct arc_operand_operation *op; | |
2078 | unsigned int i; | |
2079 | int j; | |
2080 | ||
2081 | for (i = 0; i < arc_num_pseudo_insn; ++i) | |
6f4b1afc | 2082 | { |
4670103e CZ |
2083 | pseudo_insn = &arc_pseudo_insns[i]; |
2084 | if (strcmp (pseudo_insn->mnemonic_p, opname) == 0) | |
2085 | { | |
2086 | op = pseudo_insn->operand; | |
2087 | for (j = 0; j < ntok; ++j) | |
2088 | if (!pseudo_operand_match (&tok[j], &op[j])) | |
2089 | break; | |
2090 | ||
2091 | /* Found the right instruction. */ | |
2092 | if (j == ntok) | |
2093 | return pseudo_insn; | |
2094 | } | |
6f4b1afc | 2095 | } |
4670103e CZ |
2096 | return NULL; |
2097 | } | |
252b5132 | 2098 | |
4670103e | 2099 | /* Assumes the expressionS *tok is of sufficient size. */ |
252b5132 | 2100 | |
b9b47ab7 | 2101 | static const struct arc_opcode_hash_entry * |
4670103e CZ |
2102 | find_special_case_pseudo (const char *opname, |
2103 | int *ntok, | |
2104 | expressionS *tok, | |
2105 | int *nflgs, | |
2106 | struct arc_flags *pflags) | |
2107 | { | |
2108 | const struct arc_pseudo_insn *pseudo_insn = NULL; | |
2109 | const struct arc_operand_operation *operand_pseudo; | |
2110 | const struct arc_operand *operand_real; | |
2111 | unsigned i; | |
2112 | char construct_operand[MAX_CONSTR_STR]; | |
886a2506 | 2113 | |
4670103e CZ |
2114 | /* Find whether opname is in pseudo instruction array. */ |
2115 | pseudo_insn = find_pseudo_insn (opname, *ntok, tok); | |
2116 | ||
2117 | if (pseudo_insn == NULL) | |
2118 | return NULL; | |
2119 | ||
2120 | /* Handle flag, Limited to one flag at the moment. */ | |
2121 | if (pseudo_insn->flag_r != NULL) | |
2122 | *nflgs += tokenize_flags (pseudo_insn->flag_r, &pflags[*nflgs], | |
2123 | MAX_INSN_FLGS - *nflgs); | |
2124 | ||
2125 | /* Handle operand operations. */ | |
2126 | for (i = 0; i < pseudo_insn->operand_cnt; ++i) | |
252b5132 | 2127 | { |
4670103e CZ |
2128 | operand_pseudo = &pseudo_insn->operand[i]; |
2129 | operand_real = &arc_operands[operand_pseudo->operand_idx]; | |
886a2506 | 2130 | |
db18dbab GM |
2131 | if (operand_real->flags & ARC_OPERAND_BRAKET |
2132 | && !operand_pseudo->needs_insert) | |
4670103e | 2133 | continue; |
b125bd17 | 2134 | |
4670103e CZ |
2135 | /* Has to be inserted (i.e. this token does not exist yet). */ |
2136 | if (operand_pseudo->needs_insert) | |
2137 | { | |
2138 | if (operand_real->flags & ARC_OPERAND_BRAKET) | |
2139 | { | |
2140 | tok[i].X_op = O_bracket; | |
2141 | ++(*ntok); | |
2142 | continue; | |
2143 | } | |
b125bd17 | 2144 | |
4670103e CZ |
2145 | /* Check if operand is a register or constant and handle it |
2146 | by type. */ | |
2147 | if (operand_real->flags & ARC_OPERAND_IR) | |
2148 | snprintf (construct_operand, MAX_CONSTR_STR, "r%d", | |
2149 | operand_pseudo->count); | |
2150 | else | |
2151 | snprintf (construct_operand, MAX_CONSTR_STR, "%d", | |
2152 | operand_pseudo->count); | |
886a2506 | 2153 | |
4670103e CZ |
2154 | tokenize_arguments (construct_operand, &tok[i], 1); |
2155 | ++(*ntok); | |
2156 | } | |
2157 | ||
2158 | else if (operand_pseudo->count) | |
2159 | { | |
2160 | /* Operand number has to be adjusted accordingly (by operand | |
2161 | type). */ | |
2162 | switch (tok[i].X_op) | |
2163 | { | |
2164 | case O_constant: | |
2165 | tok[i].X_add_number += operand_pseudo->count; | |
2166 | break; | |
2167 | ||
2168 | case O_symbol: | |
2169 | break; | |
2170 | ||
2171 | default: | |
2172 | /* Ignored. */ | |
2173 | break; | |
2174 | } | |
2175 | } | |
2176 | } | |
2177 | ||
2178 | /* Swap operands if necessary. Only supports one swap at the | |
2179 | moment. */ | |
2180 | for (i = 0; i < pseudo_insn->operand_cnt; ++i) | |
2181 | { | |
2182 | operand_pseudo = &pseudo_insn->operand[i]; | |
2183 | ||
2184 | if (operand_pseudo->swap_operand_idx == i) | |
2185 | continue; | |
2186 | ||
2187 | swap_operand (tok, i, operand_pseudo->swap_operand_idx); | |
2188 | ||
2189 | /* Prevent a swap back later by breaking out. */ | |
2190 | break; | |
2191 | } | |
2192 | ||
da5be039 | 2193 | return arc_find_opcode (pseudo_insn->mnemonic_r); |
4670103e CZ |
2194 | } |
2195 | ||
b9b47ab7 | 2196 | static const struct arc_opcode_hash_entry * |
4670103e CZ |
2197 | find_special_case_flag (const char *opname, |
2198 | int *nflgs, | |
2199 | struct arc_flags *pflags) | |
2200 | { | |
2201 | unsigned int i; | |
2202 | const char *flagnm; | |
2203 | unsigned flag_idx, flag_arr_idx; | |
2204 | size_t flaglen, oplen; | |
2205 | const struct arc_flag_special *arc_flag_special_opcode; | |
b9b47ab7 | 2206 | const struct arc_opcode_hash_entry *entry; |
4670103e CZ |
2207 | |
2208 | /* Search for special case instruction. */ | |
2209 | for (i = 0; i < arc_num_flag_special; i++) | |
2210 | { | |
2211 | arc_flag_special_opcode = &arc_flag_special_cases[i]; | |
2212 | oplen = strlen (arc_flag_special_opcode->name); | |
2213 | ||
2214 | if (strncmp (opname, arc_flag_special_opcode->name, oplen) != 0) | |
2215 | continue; | |
2216 | ||
2217 | /* Found a potential special case instruction, now test for | |
2218 | flags. */ | |
2219 | for (flag_arr_idx = 0;; ++flag_arr_idx) | |
2220 | { | |
2221 | flag_idx = arc_flag_special_opcode->flags[flag_arr_idx]; | |
2222 | if (flag_idx == 0) | |
2223 | break; /* End of array, nothing found. */ | |
886a2506 | 2224 | |
4670103e CZ |
2225 | flagnm = arc_flag_operands[flag_idx].name; |
2226 | flaglen = strlen (flagnm); | |
2227 | if (strcmp (opname + oplen, flagnm) == 0) | |
2228 | { | |
b9b47ab7 | 2229 | entry = arc_find_opcode (arc_flag_special_opcode->name); |
886a2506 | 2230 | |
4670103e CZ |
2231 | if (*nflgs + 1 > MAX_INSN_FLGS) |
2232 | break; | |
2233 | memcpy (pflags[*nflgs].name, flagnm, flaglen); | |
2234 | pflags[*nflgs].name[flaglen] = '\0'; | |
2235 | (*nflgs)++; | |
b9b47ab7 | 2236 | return entry; |
4670103e CZ |
2237 | } |
2238 | } | |
2239 | } | |
2240 | return NULL; | |
2241 | } | |
886a2506 | 2242 | |
4eb6f892 AB |
2243 | /* The long instructions are not stored in a hash (there's not many of |
2244 | them) and so there's no arc_opcode_hash_entry structure to return. This | |
2245 | helper function for find_special_case_long_opcode takes an arc_opcode | |
2246 | result and places it into a fake arc_opcode_hash_entry that points to | |
2247 | the single arc_opcode OPCODE, which is then returned. */ | |
2248 | ||
2249 | static const struct arc_opcode_hash_entry * | |
2250 | build_fake_opcode_hash_entry (const struct arc_opcode *opcode) | |
2251 | { | |
2252 | static struct arc_opcode_hash_entry entry; | |
2253 | static struct arc_opcode tmp[2]; | |
2254 | static const struct arc_opcode *ptr[2]; | |
2255 | ||
2256 | memcpy (&tmp[0], opcode, sizeof (struct arc_opcode)); | |
2257 | memset (&tmp[1], 0, sizeof (struct arc_opcode)); | |
2258 | entry.count = 1; | |
2259 | entry.opcode = ptr; | |
2260 | ptr[0] = tmp; | |
2261 | ptr[1] = NULL; | |
2262 | return &entry; | |
2263 | } | |
2264 | ||
2265 | ||
2266 | /* Used by the assembler to match the list of tokens against a long (48 or | |
2267 | 64 bits) instruction. If a matching long instruction is found, then | |
2268 | some of the tokens are consumed in this function and converted into a | |
2269 | single LIMM value, which is then added to the end of the token list, | |
2270 | where it will be consumed by a LIMM operand that exists in the base | |
2271 | opcode of the long instruction. */ | |
2272 | ||
2273 | static const struct arc_opcode_hash_entry * | |
2274 | find_special_case_long_opcode (const char *opname, | |
2275 | int *ntok ATTRIBUTE_UNUSED, | |
2276 | expressionS *tok ATTRIBUTE_UNUSED, | |
2277 | int *nflgs, | |
2278 | struct arc_flags *pflags) | |
2279 | { | |
2280 | unsigned i; | |
2281 | ||
2282 | if (*ntok == MAX_INSN_ARGS) | |
2283 | return NULL; | |
2284 | ||
2285 | for (i = 0; i < arc_num_long_opcodes; ++i) | |
2286 | { | |
2287 | struct arc_opcode fake_opcode; | |
2288 | const struct arc_opcode *opcode; | |
2289 | struct arc_insn insn; | |
2290 | expressionS *limm_token; | |
2291 | ||
2292 | opcode = &arc_long_opcodes[i].base_opcode; | |
2293 | ||
2294 | if (!(opcode->cpu & arc_target)) | |
2295 | continue; | |
2296 | ||
2297 | if (!check_cpu_feature (opcode->subclass)) | |
2298 | continue; | |
2299 | ||
2300 | if (strcmp (opname, opcode->name) != 0) | |
2301 | continue; | |
2302 | ||
2303 | /* Check that the flags are a match. */ | |
2304 | if (!parse_opcode_flags (opcode, *nflgs, pflags)) | |
2305 | continue; | |
2306 | ||
2307 | /* Parse the LIMM operands into the LIMM template. */ | |
2308 | memset (&fake_opcode, 0, sizeof (fake_opcode)); | |
2309 | fake_opcode.name = "fake limm"; | |
2310 | fake_opcode.opcode = arc_long_opcodes[i].limm_template; | |
2311 | fake_opcode.mask = arc_long_opcodes[i].limm_mask; | |
2312 | fake_opcode.cpu = opcode->cpu; | |
2313 | fake_opcode.insn_class = opcode->insn_class; | |
2314 | fake_opcode.subclass = opcode->subclass; | |
2315 | memcpy (&fake_opcode.operands[0], | |
2316 | &arc_long_opcodes[i].operands, | |
2317 | MAX_INSN_ARGS); | |
2318 | /* Leave fake_opcode.flags as zero. */ | |
2319 | ||
2320 | pr_debug ("Calling assemble_insn to build fake limm value\n"); | |
2321 | assemble_insn (&fake_opcode, tok, *ntok, | |
2322 | NULL, 0, &insn); | |
2323 | pr_debug (" got limm value: 0x%x\n", insn.insn); | |
2324 | ||
2325 | /* Now create a new token at the end of the token array (We know this | |
2326 | is safe as the token array is always created with enough space for | |
2327 | MAX_INSN_ARGS, and we check at the start at the start of this | |
2328 | function that we're not there yet). This new token will | |
2329 | correspond to a LIMM operand that will be contained in the | |
2330 | base_opcode of the arc_long_opcode. */ | |
2331 | limm_token = &tok[(*ntok)]; | |
2332 | (*ntok)++; | |
2333 | ||
2334 | /* Modify the LIMM token to hold the constant. */ | |
2335 | limm_token->X_op = O_constant; | |
2336 | limm_token->X_add_number = insn.insn; | |
2337 | ||
2338 | /* Return the base opcode. */ | |
2339 | return build_fake_opcode_hash_entry (opcode); | |
2340 | } | |
2341 | ||
2342 | return NULL; | |
2343 | } | |
2344 | ||
4670103e | 2345 | /* Used to find special case opcode. */ |
886a2506 | 2346 | |
b9b47ab7 | 2347 | static const struct arc_opcode_hash_entry * |
4670103e CZ |
2348 | find_special_case (const char *opname, |
2349 | int *nflgs, | |
2350 | struct arc_flags *pflags, | |
2351 | expressionS *tok, | |
2352 | int *ntok) | |
2353 | { | |
b9b47ab7 | 2354 | const struct arc_opcode_hash_entry *entry; |
886a2506 | 2355 | |
b9b47ab7 | 2356 | entry = find_special_case_pseudo (opname, ntok, tok, nflgs, pflags); |
886a2506 | 2357 | |
b9b47ab7 AB |
2358 | if (entry == NULL) |
2359 | entry = find_special_case_flag (opname, nflgs, pflags); | |
886a2506 | 2360 | |
4eb6f892 AB |
2361 | if (entry == NULL) |
2362 | entry = find_special_case_long_opcode (opname, ntok, tok, nflgs, pflags); | |
2363 | ||
b9b47ab7 | 2364 | return entry; |
4670103e | 2365 | } |
886a2506 | 2366 | |
4670103e CZ |
2367 | /* Given an opcode name, pre-tockenized set of argumenst and the |
2368 | opcode flags, take it all the way through emission. */ | |
886a2506 | 2369 | |
4670103e CZ |
2370 | static void |
2371 | assemble_tokens (const char *opname, | |
2372 | expressionS *tok, | |
2373 | int ntok, | |
2374 | struct arc_flags *pflags, | |
2375 | int nflgs) | |
2376 | { | |
2377 | bfd_boolean found_something = FALSE; | |
b9b47ab7 | 2378 | const struct arc_opcode_hash_entry *entry; |
4670103e | 2379 | int cpumatch = 1; |
886a2506 | 2380 | |
4670103e | 2381 | /* Search opcodes. */ |
b9b47ab7 | 2382 | entry = arc_find_opcode (opname); |
886a2506 | 2383 | |
4670103e | 2384 | /* Couldn't find opcode conventional way, try special cases. */ |
b9b47ab7 AB |
2385 | if (entry == NULL) |
2386 | entry = find_special_case (opname, &nflgs, pflags, tok, &ntok); | |
886a2506 | 2387 | |
b9b47ab7 | 2388 | if (entry != NULL) |
4670103e | 2389 | { |
b9b47ab7 AB |
2390 | const struct arc_opcode *opcode; |
2391 | ||
1328504b AB |
2392 | pr_debug ("%s:%d: assemble_tokens: %s\n", |
2393 | frag_now->fr_file, frag_now->fr_line, opname); | |
4670103e | 2394 | found_something = TRUE; |
b9b47ab7 AB |
2395 | opcode = find_opcode_match (entry, tok, &ntok, pflags, |
2396 | nflgs, &cpumatch); | |
2397 | if (opcode != NULL) | |
4670103e CZ |
2398 | { |
2399 | struct arc_insn insn; | |
b9b47ab7 | 2400 | |
4670103e CZ |
2401 | assemble_insn (opcode, tok, ntok, pflags, nflgs, &insn); |
2402 | emit_insn (&insn); | |
2403 | return; | |
2404 | } | |
2405 | } | |
886a2506 | 2406 | |
4670103e CZ |
2407 | if (found_something) |
2408 | { | |
2409 | if (cpumatch) | |
2410 | as_bad (_("inappropriate arguments for opcode '%s'"), opname); | |
2411 | else | |
2412 | as_bad (_("opcode '%s' not supported for target %s"), opname, | |
2413 | arc_target_name); | |
2414 | } | |
2415 | else | |
2416 | as_bad (_("unknown opcode '%s'"), opname); | |
886a2506 NC |
2417 | } |
2418 | ||
4670103e | 2419 | /* The public interface to the instruction assembler. */ |
886a2506 | 2420 | |
4670103e CZ |
2421 | void |
2422 | md_assemble (char *str) | |
886a2506 | 2423 | { |
4670103e CZ |
2424 | char *opname; |
2425 | expressionS tok[MAX_INSN_ARGS]; | |
2426 | int ntok, nflg; | |
2427 | size_t opnamelen; | |
2428 | struct arc_flags flags[MAX_INSN_FLGS]; | |
886a2506 | 2429 | |
4670103e CZ |
2430 | /* Split off the opcode. */ |
2431 | opnamelen = strspn (str, "abcdefghijklmnopqrstuvwxyz_0123468"); | |
29a2809e | 2432 | opname = xmemdup0 (str, opnamelen); |
886a2506 | 2433 | |
4670103e CZ |
2434 | /* Signalize we are assmbling the instructions. */ |
2435 | assembling_insn = TRUE; | |
886a2506 | 2436 | |
4670103e CZ |
2437 | /* Tokenize the flags. */ |
2438 | if ((nflg = tokenize_flags (str + opnamelen, flags, MAX_INSN_FLGS)) == -1) | |
2439 | { | |
2440 | as_bad (_("syntax error")); | |
2441 | return; | |
2442 | } | |
886a2506 | 2443 | |
4670103e CZ |
2444 | /* Scan up to the end of the mnemonic which must end in space or end |
2445 | of string. */ | |
2446 | str += opnamelen; | |
2447 | for (; *str != '\0'; str++) | |
2448 | if (*str == ' ') | |
2449 | break; | |
886a2506 | 2450 | |
4670103e CZ |
2451 | /* Tokenize the rest of the line. */ |
2452 | if ((ntok = tokenize_arguments (str, tok, MAX_INSN_ARGS)) < 0) | |
886a2506 | 2453 | { |
4670103e CZ |
2454 | as_bad (_("syntax error")); |
2455 | return; | |
252b5132 RH |
2456 | } |
2457 | ||
4670103e CZ |
2458 | /* Finish it off. */ |
2459 | assemble_tokens (opname, tok, ntok, flags, nflg); | |
2460 | assembling_insn = FALSE; | |
2461 | } | |
2462 | ||
2463 | /* Callback to insert a register into the hash table. */ | |
2464 | ||
2465 | static void | |
f86f5863 | 2466 | declare_register (const char *name, int number) |
4670103e CZ |
2467 | { |
2468 | const char *err; | |
2469 | symbolS *regS = symbol_create (name, reg_section, | |
2470 | number, &zero_address_frag); | |
2471 | ||
2472 | err = hash_insert (arc_reg_hash, S_GET_NAME (regS), (void *) regS); | |
2473 | if (err) | |
e6ba1cba | 2474 | as_fatal (_("Inserting \"%s\" into register table failed: %s"), |
4670103e CZ |
2475 | name, err); |
2476 | } | |
252b5132 | 2477 | |
4670103e | 2478 | /* Construct symbols for each of the general registers. */ |
252b5132 | 2479 | |
4670103e CZ |
2480 | static void |
2481 | declare_register_set (void) | |
2482 | { | |
2483 | int i; | |
2484 | for (i = 0; i < 64; ++i) | |
886a2506 | 2485 | { |
4670103e CZ |
2486 | char name[7]; |
2487 | ||
2488 | sprintf (name, "r%d", i); | |
2489 | declare_register (name, i); | |
2490 | if ((i & 0x01) == 0) | |
886a2506 | 2491 | { |
4670103e CZ |
2492 | sprintf (name, "r%dr%d", i, i+1); |
2493 | declare_register (name, i); | |
886a2506 NC |
2494 | } |
2495 | } | |
252b5132 | 2496 | } |
ea1562b3 | 2497 | |
db18dbab GM |
2498 | /* Construct a symbol for an address type. */ |
2499 | ||
2500 | static void | |
2501 | declare_addrtype (const char *name, int number) | |
2502 | { | |
2503 | const char *err; | |
2504 | symbolS *addrtypeS = symbol_create (name, undefined_section, | |
2505 | number, &zero_address_frag); | |
2506 | ||
2507 | err = hash_insert (arc_addrtype_hash, S_GET_NAME (addrtypeS), | |
2508 | (void *) addrtypeS); | |
2509 | if (err) | |
2510 | as_fatal (_("Inserting \"%s\" into address type table failed: %s"), | |
2511 | name, err); | |
2512 | } | |
2513 | ||
4670103e CZ |
2514 | /* Port-specific assembler initialization. This function is called |
2515 | once, at assembler startup time. */ | |
ea1562b3 NC |
2516 | |
2517 | void | |
4670103e | 2518 | md_begin (void) |
ea1562b3 | 2519 | { |
b99747ae | 2520 | const struct arc_opcode *opcode = arc_opcodes; |
886a2506 | 2521 | |
24740d83 | 2522 | if (!mach_type_specified_p) |
9004b6bd | 2523 | arc_select_cpu (TARGET_WITH_CPU); |
24740d83 | 2524 | |
4670103e CZ |
2525 | /* The endianness can be chosen "at the factory". */ |
2526 | target_big_endian = byte_order == BIG_ENDIAN; | |
886a2506 | 2527 | |
4670103e CZ |
2528 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_arc, arc_mach_type)) |
2529 | as_warn (_("could not set architecture and machine")); | |
2530 | ||
2531 | /* Set elf header flags. */ | |
2532 | bfd_set_private_flags (stdoutput, arc_eflag); | |
2533 | ||
2534 | /* Set up a hash table for the instructions. */ | |
2535 | arc_opcode_hash = hash_new (); | |
2536 | if (arc_opcode_hash == NULL) | |
2537 | as_fatal (_("Virtual memory exhausted")); | |
2538 | ||
2539 | /* Initialize the hash table with the insns. */ | |
b99747ae | 2540 | do |
ea1562b3 | 2541 | { |
b99747ae | 2542 | const char *name = opcode->name; |
da5be039 | 2543 | |
b99747ae | 2544 | arc_insert_opcode (opcode); |
4670103e | 2545 | |
b99747ae CZ |
2546 | while (++opcode && opcode->name |
2547 | && (opcode->name == name | |
2548 | || !strcmp (opcode->name, name))) | |
4670103e | 2549 | continue; |
b99747ae | 2550 | }while (opcode->name); |
4670103e CZ |
2551 | |
2552 | /* Register declaration. */ | |
2553 | arc_reg_hash = hash_new (); | |
2554 | if (arc_reg_hash == NULL) | |
2555 | as_fatal (_("Virtual memory exhausted")); | |
2556 | ||
2557 | declare_register_set (); | |
2558 | declare_register ("gp", 26); | |
2559 | declare_register ("fp", 27); | |
2560 | declare_register ("sp", 28); | |
2561 | declare_register ("ilink", 29); | |
2562 | declare_register ("ilink1", 29); | |
2563 | declare_register ("ilink2", 30); | |
2564 | declare_register ("blink", 31); | |
2565 | ||
87789e08 CZ |
2566 | /* XY memory registers. */ |
2567 | declare_register ("x0_u0", 32); | |
2568 | declare_register ("x0_u1", 33); | |
2569 | declare_register ("x1_u0", 34); | |
2570 | declare_register ("x1_u1", 35); | |
2571 | declare_register ("x2_u0", 36); | |
2572 | declare_register ("x2_u1", 37); | |
2573 | declare_register ("x3_u0", 38); | |
2574 | declare_register ("x3_u1", 39); | |
2575 | declare_register ("y0_u0", 40); | |
2576 | declare_register ("y0_u1", 41); | |
2577 | declare_register ("y1_u0", 42); | |
2578 | declare_register ("y1_u1", 43); | |
2579 | declare_register ("y2_u0", 44); | |
2580 | declare_register ("y2_u1", 45); | |
2581 | declare_register ("y3_u0", 46); | |
2582 | declare_register ("y3_u1", 47); | |
2583 | declare_register ("x0_nu", 48); | |
2584 | declare_register ("x1_nu", 49); | |
2585 | declare_register ("x2_nu", 50); | |
2586 | declare_register ("x3_nu", 51); | |
2587 | declare_register ("y0_nu", 52); | |
2588 | declare_register ("y1_nu", 53); | |
2589 | declare_register ("y2_nu", 54); | |
2590 | declare_register ("y3_nu", 55); | |
2591 | ||
4670103e CZ |
2592 | declare_register ("mlo", 57); |
2593 | declare_register ("mmid", 58); | |
2594 | declare_register ("mhi", 59); | |
2595 | ||
2596 | declare_register ("acc1", 56); | |
2597 | declare_register ("acc2", 57); | |
2598 | ||
2599 | declare_register ("lp_count", 60); | |
2600 | declare_register ("pcl", 63); | |
2601 | ||
2602 | /* Initialize the last instructions. */ | |
2603 | memset (&arc_last_insns[0], 0, sizeof (arc_last_insns)); | |
f36e33da CZ |
2604 | |
2605 | /* Aux register declaration. */ | |
2606 | arc_aux_hash = hash_new (); | |
2607 | if (arc_aux_hash == NULL) | |
2608 | as_fatal (_("Virtual memory exhausted")); | |
2609 | ||
2610 | const struct arc_aux_reg *auxr = &arc_aux_regs[0]; | |
2611 | unsigned int i; | |
2612 | for (i = 0; i < arc_num_aux_regs; i++, auxr++) | |
2613 | { | |
2614 | const char *retval; | |
2615 | ||
2616 | if (!(auxr->cpu & arc_target)) | |
2617 | continue; | |
2618 | ||
2619 | if ((auxr->subclass != NONE) | |
2620 | && !check_cpu_feature (auxr->subclass)) | |
2621 | continue; | |
2622 | ||
2623 | retval = hash_insert (arc_aux_hash, auxr->name, (void *) auxr); | |
2624 | if (retval) | |
2625 | as_fatal (_("internal error: can't hash aux register '%s': %s"), | |
2626 | auxr->name, retval); | |
2627 | } | |
db18dbab GM |
2628 | |
2629 | /* Address type declaration. */ | |
2630 | arc_addrtype_hash = hash_new (); | |
2631 | if (arc_addrtype_hash == NULL) | |
2632 | as_fatal (_("Virtual memory exhausted")); | |
2633 | ||
2634 | declare_addrtype ("bd", ARC_NPS400_ADDRTYPE_BD); | |
2635 | declare_addrtype ("jid", ARC_NPS400_ADDRTYPE_JID); | |
2636 | declare_addrtype ("lbd", ARC_NPS400_ADDRTYPE_LBD); | |
2637 | declare_addrtype ("mbd", ARC_NPS400_ADDRTYPE_MBD); | |
2638 | declare_addrtype ("sd", ARC_NPS400_ADDRTYPE_SD); | |
2639 | declare_addrtype ("sm", ARC_NPS400_ADDRTYPE_SM); | |
2640 | declare_addrtype ("xa", ARC_NPS400_ADDRTYPE_XA); | |
2641 | declare_addrtype ("xd", ARC_NPS400_ADDRTYPE_XD); | |
2642 | declare_addrtype ("cd", ARC_NPS400_ADDRTYPE_CD); | |
2643 | declare_addrtype ("cbd", ARC_NPS400_ADDRTYPE_CBD); | |
2644 | declare_addrtype ("cjid", ARC_NPS400_ADDRTYPE_CJID); | |
2645 | declare_addrtype ("clbd", ARC_NPS400_ADDRTYPE_CLBD); | |
2646 | declare_addrtype ("cm", ARC_NPS400_ADDRTYPE_CM); | |
2647 | declare_addrtype ("csd", ARC_NPS400_ADDRTYPE_CSD); | |
2648 | declare_addrtype ("cxa", ARC_NPS400_ADDRTYPE_CXA); | |
2649 | declare_addrtype ("cxd", ARC_NPS400_ADDRTYPE_CXD); | |
886a2506 | 2650 | } |
ea1562b3 | 2651 | |
4670103e CZ |
2652 | /* Write a value out to the object file, using the appropriate |
2653 | endianness. */ | |
ea1562b3 | 2654 | |
4670103e CZ |
2655 | void |
2656 | md_number_to_chars (char *buf, | |
2657 | valueT val, | |
2658 | int n) | |
886a2506 | 2659 | { |
4670103e CZ |
2660 | if (target_big_endian) |
2661 | number_to_chars_bigendian (buf, val, n); | |
2662 | else | |
2663 | number_to_chars_littleendian (buf, val, n); | |
886a2506 | 2664 | } |
ea1562b3 | 2665 | |
4670103e | 2666 | /* Round up a section size to the appropriate boundary. */ |
ea1562b3 | 2667 | |
4670103e CZ |
2668 | valueT |
2669 | md_section_align (segT segment, | |
2670 | valueT size) | |
886a2506 | 2671 | { |
4670103e CZ |
2672 | int align = bfd_get_section_alignment (stdoutput, segment); |
2673 | ||
2674 | return ((size + (1 << align) - 1) & (-((valueT) 1 << align))); | |
886a2506 | 2675 | } |
ea1562b3 | 2676 | |
4670103e CZ |
2677 | /* The location from which a PC relative jump should be calculated, |
2678 | given a PC relative reloc. */ | |
ea1562b3 | 2679 | |
4670103e CZ |
2680 | long |
2681 | md_pcrel_from_section (fixS *fixP, | |
2682 | segT sec) | |
886a2506 | 2683 | { |
4670103e | 2684 | offsetT base = fixP->fx_where + fixP->fx_frag->fr_address; |
ea1562b3 | 2685 | |
4670103e | 2686 | pr_debug ("pcrel_from_section, fx_offset = %d\n", (int) fixP->fx_offset); |
ea1562b3 | 2687 | |
4670103e CZ |
2688 | if (fixP->fx_addsy != (symbolS *) NULL |
2689 | && (!S_IS_DEFINED (fixP->fx_addsy) | |
2690 | || S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
2691 | { | |
2692 | pr_debug ("Unknown pcrel symbol: %s\n", S_GET_NAME (fixP->fx_addsy)); | |
ea1562b3 | 2693 | |
4670103e CZ |
2694 | /* The symbol is undefined (or is defined but not in this section). |
2695 | Let the linker figure it out. */ | |
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | if ((int) fixP->fx_r_type < 0) | |
886a2506 | 2700 | { |
4670103e CZ |
2701 | /* These are the "internal" relocations. Align them to |
2702 | 32 bit boundary (PCL), for the moment. */ | |
2703 | base &= ~3; | |
886a2506 | 2704 | } |
4670103e CZ |
2705 | else |
2706 | { | |
2707 | switch (fixP->fx_r_type) | |
2708 | { | |
2709 | case BFD_RELOC_ARC_PC32: | |
2710 | /* The hardware calculates relative to the start of the | |
2711 | insn, but this relocation is relative to location of the | |
2712 | LIMM, compensate. The base always needs to be | |
2713 | substracted by 4 as we do not support this type of PCrel | |
2714 | relocation for short instructions. */ | |
2715 | base -= 4; | |
2716 | /* Fall through. */ | |
2717 | case BFD_RELOC_ARC_PLT32: | |
2718 | case BFD_RELOC_ARC_S25H_PCREL_PLT: | |
2719 | case BFD_RELOC_ARC_S21H_PCREL_PLT: | |
2720 | case BFD_RELOC_ARC_S25W_PCREL_PLT: | |
2721 | case BFD_RELOC_ARC_S21W_PCREL_PLT: | |
2722 | ||
2723 | case BFD_RELOC_ARC_S21H_PCREL: | |
2724 | case BFD_RELOC_ARC_S25H_PCREL: | |
2725 | case BFD_RELOC_ARC_S13_PCREL: | |
2726 | case BFD_RELOC_ARC_S21W_PCREL: | |
2727 | case BFD_RELOC_ARC_S25W_PCREL: | |
2728 | base &= ~3; | |
2729 | break; | |
2730 | default: | |
2731 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2732 | _("unhandled reloc %s in md_pcrel_from_section"), | |
2733 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
2734 | break; | |
2735 | } | |
2736 | } | |
2737 | ||
9e32d9ae AB |
2738 | pr_debug ("pcrel from %"BFD_VMA_FMT"x + %lx = %"BFD_VMA_FMT"x, " |
2739 | "symbol: %s (%"BFD_VMA_FMT"x)\n", | |
4670103e CZ |
2740 | fixP->fx_frag->fr_address, fixP->fx_where, base, |
2741 | fixP->fx_addsy ? S_GET_NAME (fixP->fx_addsy) : "(null)", | |
2742 | fixP->fx_addsy ? S_GET_VALUE (fixP->fx_addsy) : 0); | |
2743 | ||
2744 | return base; | |
886a2506 | 2745 | } |
ea1562b3 | 2746 | |
4670103e | 2747 | /* Given a BFD relocation find the coresponding operand. */ |
ea1562b3 | 2748 | |
4670103e CZ |
2749 | static const struct arc_operand * |
2750 | find_operand_for_reloc (extended_bfd_reloc_code_real_type reloc) | |
2751 | { | |
2752 | unsigned i; | |
ea1562b3 | 2753 | |
4670103e CZ |
2754 | for (i = 0; i < arc_num_operands; i++) |
2755 | if (arc_operands[i].default_reloc == reloc) | |
2756 | return &arc_operands[i]; | |
2757 | return NULL; | |
2758 | } | |
ea1562b3 | 2759 | |
4670103e | 2760 | /* Insert an operand value into an instruction. */ |
ea1562b3 | 2761 | |
4670103e CZ |
2762 | static unsigned |
2763 | insert_operand (unsigned insn, | |
2764 | const struct arc_operand *operand, | |
2765 | offsetT val, | |
3b4dbbbf | 2766 | const char *file, |
4670103e | 2767 | unsigned line) |
886a2506 | 2768 | { |
4670103e | 2769 | offsetT min = 0, max = 0; |
ea1562b3 | 2770 | |
4670103e CZ |
2771 | if (operand->bits != 32 |
2772 | && !(operand->flags & ARC_OPERAND_NCHK) | |
2773 | && !(operand->flags & ARC_OPERAND_FAKE)) | |
886a2506 | 2774 | { |
4670103e CZ |
2775 | if (operand->flags & ARC_OPERAND_SIGNED) |
2776 | { | |
2777 | max = (1 << (operand->bits - 1)) - 1; | |
2778 | min = -(1 << (operand->bits - 1)); | |
2779 | } | |
2780 | else | |
2781 | { | |
2782 | max = (1 << operand->bits) - 1; | |
2783 | min = 0; | |
2784 | } | |
886a2506 | 2785 | |
4670103e CZ |
2786 | if (val < min || val > max) |
2787 | as_bad_value_out_of_range (_("operand"), | |
2788 | val, min, max, file, line); | |
2789 | } | |
ea1562b3 | 2790 | |
4670103e CZ |
2791 | pr_debug ("insert field: %ld <= %ld <= %ld in 0x%08x\n", |
2792 | min, val, max, insn); | |
ea1562b3 | 2793 | |
4670103e CZ |
2794 | if ((operand->flags & ARC_OPERAND_ALIGNED32) |
2795 | && (val & 0x03)) | |
2796 | as_bad_where (file, line, | |
2797 | _("Unaligned operand. Needs to be 32bit aligned")); | |
ea1562b3 | 2798 | |
4670103e CZ |
2799 | if ((operand->flags & ARC_OPERAND_ALIGNED16) |
2800 | && (val & 0x01)) | |
2801 | as_bad_where (file, line, | |
2802 | _("Unaligned operand. Needs to be 16bit aligned")); | |
ea1562b3 | 2803 | |
4670103e CZ |
2804 | if (operand->insert) |
2805 | { | |
2806 | const char *errmsg = NULL; | |
ea1562b3 | 2807 | |
4670103e CZ |
2808 | insn = (*operand->insert) (insn, val, &errmsg); |
2809 | if (errmsg) | |
2810 | as_warn_where (file, line, "%s", errmsg); | |
2811 | } | |
2812 | else | |
2813 | { | |
2814 | if (operand->flags & ARC_OPERAND_TRUNCATE) | |
2815 | { | |
2816 | if (operand->flags & ARC_OPERAND_ALIGNED32) | |
2817 | val >>= 2; | |
2818 | if (operand->flags & ARC_OPERAND_ALIGNED16) | |
2819 | val >>= 1; | |
886a2506 | 2820 | } |
4670103e CZ |
2821 | insn |= ((val & ((1 << operand->bits) - 1)) << operand->shift); |
2822 | } | |
2823 | return insn; | |
2824 | } | |
ea1562b3 | 2825 | |
4670103e CZ |
2826 | /* Apply a fixup to the object code. At this point all symbol values |
2827 | should be fully resolved, and we attempt to completely resolve the | |
2828 | reloc. If we can not do that, we determine the correct reloc code | |
2829 | and put it back in the fixup. To indicate that a fixup has been | |
2830 | eliminated, set fixP->fx_done. */ | |
ea1562b3 | 2831 | |
4670103e CZ |
2832 | void |
2833 | md_apply_fix (fixS *fixP, | |
2834 | valueT *valP, | |
2835 | segT seg) | |
2836 | { | |
2837 | char * const fixpos = fixP->fx_frag->fr_literal + fixP->fx_where; | |
2838 | valueT value = *valP; | |
2839 | unsigned insn = 0; | |
2840 | symbolS *fx_addsy, *fx_subsy; | |
2841 | offsetT fx_offset; | |
2842 | segT add_symbol_segment = absolute_section; | |
2843 | segT sub_symbol_segment = absolute_section; | |
2844 | const struct arc_operand *operand = NULL; | |
2845 | extended_bfd_reloc_code_real_type reloc; | |
886a2506 | 2846 | |
4670103e CZ |
2847 | pr_debug ("%s:%u: apply_fix: r_type=%d (%s) value=0x%lX offset=0x%lX\n", |
2848 | fixP->fx_file, fixP->fx_line, fixP->fx_r_type, | |
2849 | ((int) fixP->fx_r_type < 0) ? "Internal": | |
2850 | bfd_get_reloc_code_name (fixP->fx_r_type), value, | |
2851 | fixP->fx_offset); | |
886a2506 | 2852 | |
4670103e CZ |
2853 | fx_addsy = fixP->fx_addsy; |
2854 | fx_subsy = fixP->fx_subsy; | |
2855 | fx_offset = 0; | |
886a2506 | 2856 | |
4670103e CZ |
2857 | if (fx_addsy) |
2858 | { | |
2859 | add_symbol_segment = S_GET_SEGMENT (fx_addsy); | |
886a2506 NC |
2860 | } |
2861 | ||
4670103e CZ |
2862 | if (fx_subsy |
2863 | && fixP->fx_r_type != BFD_RELOC_ARC_TLS_DTPOFF | |
2864 | && fixP->fx_r_type != BFD_RELOC_ARC_TLS_DTPOFF_S9 | |
2865 | && fixP->fx_r_type != BFD_RELOC_ARC_TLS_GD_LD) | |
2866 | { | |
2867 | resolve_symbol_value (fx_subsy); | |
2868 | sub_symbol_segment = S_GET_SEGMENT (fx_subsy); | |
886a2506 | 2869 | |
4670103e CZ |
2870 | if (sub_symbol_segment == absolute_section) |
2871 | { | |
2872 | /* The symbol is really a constant. */ | |
2873 | fx_offset -= S_GET_VALUE (fx_subsy); | |
2874 | fx_subsy = NULL; | |
2875 | } | |
2876 | else | |
2877 | { | |
2878 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2879 | _("can't resolve `%s' {%s section} - `%s' {%s section}"), | |
2880 | fx_addsy ? S_GET_NAME (fx_addsy) : "0", | |
2881 | segment_name (add_symbol_segment), | |
2882 | S_GET_NAME (fx_subsy), | |
2883 | segment_name (sub_symbol_segment)); | |
2884 | return; | |
2885 | } | |
2886 | } | |
886a2506 | 2887 | |
4670103e CZ |
2888 | if (fx_addsy |
2889 | && !S_IS_WEAK (fx_addsy)) | |
2890 | { | |
2891 | if (add_symbol_segment == seg | |
2892 | && fixP->fx_pcrel) | |
2893 | { | |
2894 | value += S_GET_VALUE (fx_addsy); | |
2895 | value -= md_pcrel_from_section (fixP, seg); | |
2896 | fx_addsy = NULL; | |
2897 | fixP->fx_pcrel = FALSE; | |
2898 | } | |
2899 | else if (add_symbol_segment == absolute_section) | |
2900 | { | |
2901 | value = fixP->fx_offset; | |
2902 | fx_offset += S_GET_VALUE (fixP->fx_addsy); | |
2903 | fx_addsy = NULL; | |
2904 | fixP->fx_pcrel = FALSE; | |
2905 | } | |
2906 | } | |
886a2506 | 2907 | |
4670103e CZ |
2908 | if (!fx_addsy) |
2909 | fixP->fx_done = TRUE; | |
886a2506 | 2910 | |
4670103e | 2911 | if (fixP->fx_pcrel) |
886a2506 | 2912 | { |
4670103e CZ |
2913 | if (fx_addsy |
2914 | && ((S_IS_DEFINED (fx_addsy) | |
2915 | && S_GET_SEGMENT (fx_addsy) != seg) | |
2916 | || S_IS_WEAK (fx_addsy))) | |
2917 | value += md_pcrel_from_section (fixP, seg); | |
886a2506 | 2918 | |
4670103e CZ |
2919 | switch (fixP->fx_r_type) |
2920 | { | |
2921 | case BFD_RELOC_ARC_32_ME: | |
2922 | /* This is a pc-relative value in a LIMM. Adjust it to the | |
2923 | address of the instruction not to the address of the | |
2924 | LIMM. Note: it is not anylonger valid this afirmation as | |
2925 | the linker consider ARC_PC32 a fixup to entire 64 bit | |
2926 | insn. */ | |
2927 | fixP->fx_offset += fixP->fx_frag->fr_address; | |
2928 | /* Fall through. */ | |
2929 | case BFD_RELOC_32: | |
2930 | fixP->fx_r_type = BFD_RELOC_ARC_PC32; | |
2931 | /* Fall through. */ | |
2932 | case BFD_RELOC_ARC_PC32: | |
2933 | /* fixP->fx_offset += fixP->fx_where - fixP->fx_dot_value; */ | |
886a2506 NC |
2934 | break; |
2935 | default: | |
4670103e CZ |
2936 | if ((int) fixP->fx_r_type < 0) |
2937 | as_fatal (_("PC relative relocation not allowed for (internal) type %d"), | |
2938 | fixP->fx_r_type); | |
886a2506 | 2939 | break; |
ea1562b3 NC |
2940 | } |
2941 | } | |
2942 | ||
4670103e CZ |
2943 | pr_debug ("%s:%u: apply_fix: r_type=%d (%s) value=0x%lX offset=0x%lX\n", |
2944 | fixP->fx_file, fixP->fx_line, fixP->fx_r_type, | |
2945 | ((int) fixP->fx_r_type < 0) ? "Internal": | |
2946 | bfd_get_reloc_code_name (fixP->fx_r_type), value, | |
2947 | fixP->fx_offset); | |
886a2506 | 2948 | |
886a2506 | 2949 | |
4670103e CZ |
2950 | /* Now check for TLS relocations. */ |
2951 | reloc = fixP->fx_r_type; | |
2952 | switch (reloc) | |
886a2506 | 2953 | { |
4670103e CZ |
2954 | case BFD_RELOC_ARC_TLS_DTPOFF: |
2955 | case BFD_RELOC_ARC_TLS_LE_32: | |
2956 | if (fixP->fx_done) | |
2957 | break; | |
2958 | /* Fall through. */ | |
2959 | case BFD_RELOC_ARC_TLS_GD_GOT: | |
2960 | case BFD_RELOC_ARC_TLS_IE_GOT: | |
2961 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
2962 | break; | |
886a2506 | 2963 | |
4670103e CZ |
2964 | case BFD_RELOC_ARC_TLS_GD_LD: |
2965 | gas_assert (!fixP->fx_offset); | |
2966 | if (fixP->fx_subsy) | |
2967 | fixP->fx_offset | |
2968 | = (S_GET_VALUE (fixP->fx_subsy) | |
2969 | - fixP->fx_frag->fr_address- fixP->fx_where); | |
2970 | fixP->fx_subsy = NULL; | |
2971 | /* Fall through. */ | |
2972 | case BFD_RELOC_ARC_TLS_GD_CALL: | |
2973 | /* These two relocs are there just to allow ld to change the tls | |
2974 | model for this symbol, by patching the code. The offset - | |
2975 | and scale, if any - will be installed by the linker. */ | |
2976 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
2977 | break; | |
886a2506 | 2978 | |
4670103e CZ |
2979 | case BFD_RELOC_ARC_TLS_LE_S9: |
2980 | case BFD_RELOC_ARC_TLS_DTPOFF_S9: | |
2981 | as_bad (_("TLS_*_S9 relocs are not supported yet")); | |
2982 | break; | |
2983 | ||
2984 | default: | |
2985 | break; | |
886a2506 NC |
2986 | } |
2987 | ||
4670103e | 2988 | if (!fixP->fx_done) |
886a2506 | 2989 | { |
4670103e | 2990 | return; |
886a2506 | 2991 | } |
886a2506 | 2992 | |
4670103e CZ |
2993 | /* Addjust the value if we have a constant. */ |
2994 | value += fx_offset; | |
886a2506 | 2995 | |
4670103e CZ |
2996 | /* For hosts with longs bigger than 32-bits make sure that the top |
2997 | bits of a 32-bit negative value read in by the parser are set, | |
2998 | so that the correct comparisons are made. */ | |
2999 | if (value & 0x80000000) | |
69c9e028 | 3000 | value |= (-1UL << 31); |
886a2506 | 3001 | |
4670103e CZ |
3002 | reloc = fixP->fx_r_type; |
3003 | switch (reloc) | |
3004 | { | |
3005 | case BFD_RELOC_8: | |
3006 | case BFD_RELOC_16: | |
3007 | case BFD_RELOC_24: | |
3008 | case BFD_RELOC_32: | |
3009 | case BFD_RELOC_64: | |
3010 | case BFD_RELOC_ARC_32_PCREL: | |
3011 | md_number_to_chars (fixpos, value, fixP->fx_size); | |
3012 | return; | |
886a2506 | 3013 | |
4670103e CZ |
3014 | case BFD_RELOC_ARC_GOTPC32: |
3015 | /* I cannot fix an GOTPC relocation because I need to relax it | |
3016 | from ld rx,[pcl,@sym@gotpc] to add rx,pcl,@sym@gotpc. */ | |
3017 | as_bad (_("Unsupported operation on reloc")); | |
3018 | return; | |
886a2506 | 3019 | |
4670103e CZ |
3020 | case BFD_RELOC_ARC_TLS_DTPOFF: |
3021 | case BFD_RELOC_ARC_TLS_LE_32: | |
3022 | gas_assert (!fixP->fx_addsy); | |
3023 | gas_assert (!fixP->fx_subsy); | |
886a2506 | 3024 | |
4670103e CZ |
3025 | case BFD_RELOC_ARC_GOTOFF: |
3026 | case BFD_RELOC_ARC_32_ME: | |
3027 | case BFD_RELOC_ARC_PC32: | |
3028 | md_number_to_chars_midend (fixpos, value, fixP->fx_size); | |
3029 | return; | |
886a2506 | 3030 | |
4670103e CZ |
3031 | case BFD_RELOC_ARC_PLT32: |
3032 | md_number_to_chars_midend (fixpos, value, fixP->fx_size); | |
3033 | return; | |
886a2506 | 3034 | |
4670103e CZ |
3035 | case BFD_RELOC_ARC_S25H_PCREL_PLT: |
3036 | reloc = BFD_RELOC_ARC_S25W_PCREL; | |
3037 | goto solve_plt; | |
886a2506 | 3038 | |
4670103e CZ |
3039 | case BFD_RELOC_ARC_S21H_PCREL_PLT: |
3040 | reloc = BFD_RELOC_ARC_S21H_PCREL; | |
3041 | goto solve_plt; | |
886a2506 | 3042 | |
4670103e CZ |
3043 | case BFD_RELOC_ARC_S25W_PCREL_PLT: |
3044 | reloc = BFD_RELOC_ARC_S25W_PCREL; | |
3045 | goto solve_plt; | |
886a2506 | 3046 | |
4670103e CZ |
3047 | case BFD_RELOC_ARC_S21W_PCREL_PLT: |
3048 | reloc = BFD_RELOC_ARC_S21W_PCREL; | |
886a2506 | 3049 | |
4670103e CZ |
3050 | case BFD_RELOC_ARC_S25W_PCREL: |
3051 | case BFD_RELOC_ARC_S21W_PCREL: | |
3052 | case BFD_RELOC_ARC_S21H_PCREL: | |
3053 | case BFD_RELOC_ARC_S25H_PCREL: | |
3054 | case BFD_RELOC_ARC_S13_PCREL: | |
3055 | solve_plt: | |
3056 | operand = find_operand_for_reloc (reloc); | |
3057 | gas_assert (operand); | |
886a2506 NC |
3058 | break; |
3059 | ||
3060 | default: | |
4670103e CZ |
3061 | { |
3062 | if ((int) fixP->fx_r_type >= 0) | |
3063 | as_fatal (_("unhandled relocation type %s"), | |
3064 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
886a2506 | 3065 | |
4670103e CZ |
3066 | /* The rest of these fixups needs to be completely resolved as |
3067 | constants. */ | |
3068 | if (fixP->fx_addsy != 0 | |
3069 | && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) | |
3070 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3071 | _("non-absolute expression in constant field")); | |
886a2506 | 3072 | |
4670103e CZ |
3073 | gas_assert (-(int) fixP->fx_r_type < (int) arc_num_operands); |
3074 | operand = &arc_operands[-(int) fixP->fx_r_type]; | |
3075 | break; | |
3076 | } | |
3077 | } | |
886a2506 | 3078 | |
4670103e | 3079 | if (target_big_endian) |
886a2506 | 3080 | { |
4670103e | 3081 | switch (fixP->fx_size) |
886a2506 | 3082 | { |
4670103e CZ |
3083 | case 4: |
3084 | insn = bfd_getb32 (fixpos); | |
3085 | break; | |
3086 | case 2: | |
3087 | insn = bfd_getb16 (fixpos); | |
3088 | break; | |
3089 | default: | |
3090 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3091 | _("unknown fixup size")); | |
3092 | } | |
3093 | } | |
3094 | else | |
3095 | { | |
3096 | insn = 0; | |
3097 | switch (fixP->fx_size) | |
3098 | { | |
3099 | case 4: | |
3100 | insn = bfd_getl16 (fixpos) << 16 | bfd_getl16 (fixpos + 2); | |
3101 | break; | |
3102 | case 2: | |
3103 | insn = bfd_getl16 (fixpos); | |
3104 | break; | |
3105 | default: | |
3106 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3107 | _("unknown fixup size")); | |
886a2506 NC |
3108 | } |
3109 | } | |
886a2506 | 3110 | |
4670103e CZ |
3111 | insn = insert_operand (insn, operand, (offsetT) value, |
3112 | fixP->fx_file, fixP->fx_line); | |
886a2506 | 3113 | |
4670103e CZ |
3114 | md_number_to_chars_midend (fixpos, insn, fixP->fx_size); |
3115 | } | |
886a2506 | 3116 | |
4670103e | 3117 | /* Prepare machine-dependent frags for relaxation. |
886a2506 | 3118 | |
4670103e CZ |
3119 | Called just before relaxation starts. Any symbol that is now undefined |
3120 | will not become defined. | |
886a2506 | 3121 | |
4670103e | 3122 | Return the correct fr_subtype in the frag. |
886a2506 | 3123 | |
4670103e CZ |
3124 | Return the initial "guess for fr_var" to caller. The guess for fr_var |
3125 | is *actually* the growth beyond fr_fix. Whatever we do to grow fr_fix | |
3126 | or fr_var contributes to our returned value. | |
886a2506 | 3127 | |
4670103e CZ |
3128 | Although it may not be explicit in the frag, pretend |
3129 | fr_var starts with a value. */ | |
886a2506 | 3130 | |
4670103e CZ |
3131 | int |
3132 | md_estimate_size_before_relax (fragS *fragP, | |
3133 | segT segment) | |
3134 | { | |
3135 | int growth; | |
3136 | ||
3137 | /* If the symbol is not located within the same section AND it's not | |
3138 | an absolute section, use the maximum. OR if the symbol is a | |
3139 | constant AND the insn is by nature not pc-rel, use the maximum. | |
3140 | OR if the symbol is being equated against another symbol, use the | |
3141 | maximum. OR if the symbol is weak use the maximum. */ | |
3142 | if ((S_GET_SEGMENT (fragP->fr_symbol) != segment | |
3143 | && S_GET_SEGMENT (fragP->fr_symbol) != absolute_section) | |
3144 | || (symbol_constant_p (fragP->fr_symbol) | |
3145 | && !fragP->tc_frag_data.pcrel) | |
3146 | || symbol_equated_p (fragP->fr_symbol) | |
3147 | || S_IS_WEAK (fragP->fr_symbol)) | |
3148 | { | |
3149 | while (md_relax_table[fragP->fr_subtype].rlx_more != ARC_RLX_NONE) | |
3150 | ++fragP->fr_subtype; | |
3151 | } | |
886a2506 | 3152 | |
4670103e CZ |
3153 | growth = md_relax_table[fragP->fr_subtype].rlx_length; |
3154 | fragP->fr_var = growth; | |
886a2506 | 3155 | |
4670103e CZ |
3156 | pr_debug ("%s:%d: md_estimate_size_before_relax: %d\n", |
3157 | fragP->fr_file, fragP->fr_line, growth); | |
886a2506 | 3158 | |
4670103e CZ |
3159 | return growth; |
3160 | } | |
886a2506 | 3161 | |
4670103e CZ |
3162 | /* Translate internal representation of relocation info to BFD target |
3163 | format. */ | |
886a2506 | 3164 | |
4670103e CZ |
3165 | arelent * |
3166 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, | |
3167 | fixS *fixP) | |
3168 | { | |
3169 | arelent *reloc; | |
3170 | bfd_reloc_code_real_type code; | |
886a2506 | 3171 | |
add39d23 TS |
3172 | reloc = XNEW (arelent); |
3173 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
4670103e CZ |
3174 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy); |
3175 | reloc->address = fixP->fx_frag->fr_address + fixP->fx_where; | |
886a2506 | 3176 | |
4670103e CZ |
3177 | /* Make sure none of our internal relocations make it this far. |
3178 | They'd better have been fully resolved by this point. */ | |
3179 | gas_assert ((int) fixP->fx_r_type > 0); | |
886a2506 | 3180 | |
4670103e | 3181 | code = fixP->fx_r_type; |
886a2506 | 3182 | |
4670103e CZ |
3183 | /* if we have something like add gp, pcl, |
3184 | _GLOBAL_OFFSET_TABLE_@gotpc. */ | |
3185 | if (code == BFD_RELOC_ARC_GOTPC32 | |
3186 | && GOT_symbol | |
3187 | && fixP->fx_addsy == GOT_symbol) | |
3188 | code = BFD_RELOC_ARC_GOTPC; | |
886a2506 | 3189 | |
4670103e CZ |
3190 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); |
3191 | if (reloc->howto == NULL) | |
886a2506 | 3192 | { |
4670103e CZ |
3193 | as_bad_where (fixP->fx_file, fixP->fx_line, |
3194 | _("cannot represent `%s' relocation in object file"), | |
3195 | bfd_get_reloc_code_name (code)); | |
3196 | return NULL; | |
3197 | } | |
886a2506 | 3198 | |
4670103e CZ |
3199 | if (!fixP->fx_pcrel != !reloc->howto->pc_relative) |
3200 | as_fatal (_("internal error? cannot generate `%s' relocation"), | |
3201 | bfd_get_reloc_code_name (code)); | |
886a2506 | 3202 | |
4670103e | 3203 | gas_assert (!fixP->fx_pcrel == !reloc->howto->pc_relative); |
886a2506 | 3204 | |
05bbf016 | 3205 | reloc->addend = fixP->fx_offset; |
4670103e CZ |
3206 | |
3207 | return reloc; | |
886a2506 NC |
3208 | } |
3209 | ||
4670103e CZ |
3210 | /* Perform post-processing of machine-dependent frags after relaxation. |
3211 | Called after relaxation is finished. | |
3212 | In: Address of frag. | |
3213 | fr_type == rs_machine_dependent. | |
3214 | fr_subtype is what the address relaxed to. | |
886a2506 | 3215 | |
4670103e CZ |
3216 | Out: Any fixS:s and constants are set up. */ |
3217 | ||
3218 | void | |
3219 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, | |
3220 | segT segment ATTRIBUTE_UNUSED, | |
3221 | fragS *fragP) | |
886a2506 | 3222 | { |
4670103e CZ |
3223 | const relax_typeS *table_entry; |
3224 | char *dest; | |
3225 | const struct arc_opcode *opcode; | |
3226 | struct arc_insn insn; | |
3227 | int size, fix; | |
3228 | struct arc_relax_type *relax_arg = &fragP->tc_frag_data; | |
886a2506 | 3229 | |
4670103e CZ |
3230 | fix = (fragP->fr_fix < 0 ? 0 : fragP->fr_fix); |
3231 | dest = fragP->fr_literal + fix; | |
3232 | table_entry = TC_GENERIC_RELAX_TABLE + fragP->fr_subtype; | |
886a2506 | 3233 | |
9e32d9ae AB |
3234 | pr_debug ("%s:%d: md_convert_frag, subtype: %d, fix: %d, " |
3235 | "var: %"BFD_VMA_FMT"d\n", | |
4670103e CZ |
3236 | fragP->fr_file, fragP->fr_line, |
3237 | fragP->fr_subtype, fix, fragP->fr_var); | |
886a2506 | 3238 | |
4670103e CZ |
3239 | if (fragP->fr_subtype <= 0 |
3240 | && fragP->fr_subtype >= arc_num_relax_opcodes) | |
3241 | as_fatal (_("no relaxation found for this instruction.")); | |
886a2506 | 3242 | |
4670103e | 3243 | opcode = &arc_relax_opcodes[fragP->fr_subtype]; |
886a2506 | 3244 | |
4670103e CZ |
3245 | assemble_insn (opcode, relax_arg->tok, relax_arg->ntok, relax_arg->pflags, |
3246 | relax_arg->nflg, &insn); | |
886a2506 | 3247 | |
4670103e | 3248 | apply_fixups (&insn, fragP, fix); |
886a2506 | 3249 | |
4670103e CZ |
3250 | size = insn.short_insn ? (insn.has_limm ? 6 : 2) : (insn.has_limm ? 8 : 4); |
3251 | gas_assert (table_entry->rlx_length == size); | |
3252 | emit_insn0 (&insn, dest, TRUE); | |
886a2506 | 3253 | |
4670103e CZ |
3254 | fragP->fr_fix += table_entry->rlx_length; |
3255 | fragP->fr_var = 0; | |
886a2506 NC |
3256 | } |
3257 | ||
4670103e CZ |
3258 | /* We have no need to default values of symbols. We could catch |
3259 | register names here, but that is handled by inserting them all in | |
3260 | the symbol table to begin with. */ | |
886a2506 | 3261 | |
4670103e CZ |
3262 | symbolS * |
3263 | md_undefined_symbol (char *name) | |
886a2506 | 3264 | { |
4670103e CZ |
3265 | /* The arc abi demands that a GOT[0] should be referencible as |
3266 | [pc+_DYNAMIC@gotpc]. Hence we convert a _DYNAMIC@gotpc to a | |
3267 | GOTPC reference to _GLOBAL_OFFSET_TABLE_. */ | |
3268 | if (((*name == '_') | |
3269 | && (*(name+1) == 'G') | |
3270 | && (strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0)) | |
3271 | || ((*name == '_') | |
3272 | && (*(name+1) == 'D') | |
3273 | && (strcmp (name, DYNAMIC_STRUCT_NAME) == 0))) | |
886a2506 | 3274 | { |
4670103e CZ |
3275 | if (!GOT_symbol) |
3276 | { | |
3277 | if (symbol_find (name)) | |
3278 | as_bad ("GOT already in symbol table"); | |
3279 | ||
3280 | GOT_symbol = symbol_new (GLOBAL_OFFSET_TABLE_NAME, undefined_section, | |
3281 | (valueT) 0, &zero_address_frag); | |
3282 | }; | |
3283 | return GOT_symbol; | |
886a2506 | 3284 | } |
4670103e | 3285 | return NULL; |
886a2506 NC |
3286 | } |
3287 | ||
4670103e CZ |
3288 | /* Turn a string in input_line_pointer into a floating point constant |
3289 | of type type, and store the appropriate bytes in *litP. The number | |
3290 | of LITTLENUMS emitted is stored in *sizeP. An error message is | |
3291 | returned, or NULL on OK. */ | |
886a2506 | 3292 | |
6d4af3c2 | 3293 | const char * |
4670103e | 3294 | md_atof (int type, char *litP, int *sizeP) |
886a2506 | 3295 | { |
4670103e CZ |
3296 | return ieee_md_atof (type, litP, sizeP, target_big_endian); |
3297 | } | |
886a2506 | 3298 | |
4670103e CZ |
3299 | /* Called for any expression that can not be recognized. When the |
3300 | function is called, `input_line_pointer' will point to the start of | |
3301 | the expression. */ | |
886a2506 | 3302 | |
4670103e CZ |
3303 | void |
3304 | md_operand (expressionS *expressionP ATTRIBUTE_UNUSED) | |
3305 | { | |
3306 | char *p = input_line_pointer; | |
3307 | if (*p == '@') | |
886a2506 | 3308 | { |
4670103e CZ |
3309 | input_line_pointer++; |
3310 | expressionP->X_op = O_symbol; | |
3311 | expression (expressionP); | |
3312 | } | |
3313 | } | |
886a2506 | 3314 | |
4670103e CZ |
3315 | /* This function is called from the function 'expression', it attempts |
3316 | to parse special names (in our case register names). It fills in | |
3317 | the expression with the identified register. It returns TRUE if | |
3318 | it is a register and FALSE otherwise. */ | |
886a2506 | 3319 | |
4670103e CZ |
3320 | bfd_boolean |
3321 | arc_parse_name (const char *name, | |
3322 | struct expressionS *e) | |
3323 | { | |
3324 | struct symbol *sym; | |
886a2506 | 3325 | |
4670103e CZ |
3326 | if (!assembling_insn) |
3327 | return FALSE; | |
886a2506 | 3328 | |
db18dbab | 3329 | /* Handle only registers and address types. */ |
4670103e CZ |
3330 | if (e->X_op != O_absent) |
3331 | return FALSE; | |
886a2506 | 3332 | |
4670103e CZ |
3333 | sym = hash_find (arc_reg_hash, name); |
3334 | if (sym) | |
3335 | { | |
3336 | e->X_op = O_register; | |
3337 | e->X_add_number = S_GET_VALUE (sym); | |
3338 | return TRUE; | |
3339 | } | |
db18dbab GM |
3340 | |
3341 | sym = hash_find (arc_addrtype_hash, name); | |
3342 | if (sym) | |
3343 | { | |
3344 | e->X_op = O_addrtype; | |
3345 | e->X_add_number = S_GET_VALUE (sym); | |
3346 | return TRUE; | |
3347 | } | |
3348 | ||
4670103e CZ |
3349 | return FALSE; |
3350 | } | |
886a2506 | 3351 | |
4670103e CZ |
3352 | /* md_parse_option |
3353 | Invocation line includes a switch not recognized by the base assembler. | |
3354 | See if it's a processor-specific option. | |
886a2506 | 3355 | |
4670103e | 3356 | New options (supported) are: |
886a2506 | 3357 | |
4670103e CZ |
3358 | -mcpu=<cpu name> Assemble for selected processor |
3359 | -EB/-mbig-endian Big-endian | |
3360 | -EL/-mlittle-endian Little-endian | |
3361 | -mrelax Enable relaxation | |
886a2506 | 3362 | |
4670103e | 3363 | The following CPU names are recognized: |
ce440d63 | 3364 | arc600, arc700, arcem, archs, nps400. */ |
886a2506 | 3365 | |
4670103e | 3366 | int |
17b9d67d | 3367 | md_parse_option (int c, const char *arg ATTRIBUTE_UNUSED) |
4670103e | 3368 | { |
4670103e CZ |
3369 | switch (c) |
3370 | { | |
3371 | case OPTION_ARC600: | |
3372 | case OPTION_ARC601: | |
3373 | return md_parse_option (OPTION_MCPU, "arc600"); | |
886a2506 | 3374 | |
4670103e CZ |
3375 | case OPTION_ARC700: |
3376 | return md_parse_option (OPTION_MCPU, "arc700"); | |
886a2506 | 3377 | |
4670103e CZ |
3378 | case OPTION_ARCEM: |
3379 | return md_parse_option (OPTION_MCPU, "arcem"); | |
886a2506 | 3380 | |
4670103e CZ |
3381 | case OPTION_ARCHS: |
3382 | return md_parse_option (OPTION_MCPU, "archs"); | |
886a2506 | 3383 | |
4670103e CZ |
3384 | case OPTION_MCPU: |
3385 | { | |
24740d83 | 3386 | arc_select_cpu (arg); |
1adc8a9a | 3387 | mach_type_specified_p = TRUE; |
4670103e CZ |
3388 | break; |
3389 | } | |
886a2506 | 3390 | |
4670103e CZ |
3391 | case OPTION_EB: |
3392 | arc_target_format = "elf32-bigarc"; | |
3393 | byte_order = BIG_ENDIAN; | |
3394 | break; | |
886a2506 | 3395 | |
4670103e CZ |
3396 | case OPTION_EL: |
3397 | arc_target_format = "elf32-littlearc"; | |
3398 | byte_order = LITTLE_ENDIAN; | |
3399 | break; | |
886a2506 | 3400 | |
4670103e CZ |
3401 | case OPTION_CD: |
3402 | /* This option has an effect only on ARC EM. */ | |
3403 | if (arc_target & ARC_OPCODE_ARCv2EM) | |
3404 | arc_features |= ARC_CD; | |
8ddf6b2a CZ |
3405 | else |
3406 | as_warn (_("Code density option invalid for selected CPU")); | |
4670103e | 3407 | break; |
886a2506 | 3408 | |
4670103e CZ |
3409 | case OPTION_RELAX: |
3410 | relaxation_state = 1; | |
3411 | break; | |
886a2506 | 3412 | |
bdd582db GM |
3413 | case OPTION_NPS400: |
3414 | arc_features |= ARC_NPS400; | |
ce440d63 | 3415 | break; |
bdd582db | 3416 | |
ce440d63 GM |
3417 | case OPTION_SPFP: |
3418 | arc_features |= ARC_SPFP; | |
3419 | break; | |
3420 | ||
3421 | case OPTION_DPFP: | |
3422 | arc_features |= ARC_DPFP; | |
3423 | break; | |
3424 | ||
3425 | case OPTION_FPUDA: | |
3426 | /* This option has an effect only on ARC EM. */ | |
3427 | if (arc_target & ARC_OPCODE_ARCv2EM) | |
3428 | arc_features |= ARC_FPUDA; | |
3429 | else | |
3430 | as_warn (_("FPUDA invalid for selected CPU")); | |
3431 | break; | |
3432 | ||
3433 | /* Dummy options are accepted but have no effect. */ | |
4670103e CZ |
3434 | case OPTION_USER_MODE: |
3435 | case OPTION_LD_EXT_MASK: | |
3436 | case OPTION_SWAP: | |
3437 | case OPTION_NORM: | |
3438 | case OPTION_BARREL_SHIFT: | |
3439 | case OPTION_MIN_MAX: | |
3440 | case OPTION_NO_MPY: | |
3441 | case OPTION_EA: | |
3442 | case OPTION_MUL64: | |
3443 | case OPTION_SIMD: | |
4670103e CZ |
3444 | case OPTION_XMAC_D16: |
3445 | case OPTION_XMAC_24: | |
3446 | case OPTION_DSP_PACKA: | |
3447 | case OPTION_CRC: | |
3448 | case OPTION_DVBF: | |
3449 | case OPTION_TELEPHONY: | |
3450 | case OPTION_XYMEMORY: | |
3451 | case OPTION_LOCK: | |
3452 | case OPTION_SWAPE: | |
3453 | case OPTION_RTSC: | |
8ddf6b2a CZ |
3454 | break; |
3455 | ||
4670103e CZ |
3456 | default: |
3457 | return 0; | |
3458 | } | |
886a2506 | 3459 | |
4670103e CZ |
3460 | return 1; |
3461 | } | |
886a2506 | 3462 | |
4670103e CZ |
3463 | void |
3464 | md_show_usage (FILE *stream) | |
3465 | { | |
3466 | fprintf (stream, _("ARC-specific assembler options:\n")); | |
886a2506 | 3467 | |
9004b6bd AB |
3468 | fprintf (stream, " -mcpu=<cpu name>\t assemble for CPU <cpu name> " |
3469 | "(default: %s)\n", TARGET_WITH_CPU); | |
bdd582db GM |
3470 | fprintf (stream, " -mcpu=nps400\t\t same as -mcpu=arc700 -mnps400\n"); |
3471 | fprintf (stream, " -mA6/-mARC600/-mARC601 same as -mcpu=arc600\n"); | |
3472 | fprintf (stream, " -mA7/-mARC700\t\t same as -mcpu=arc700\n"); | |
3473 | fprintf (stream, " -mEM\t\t\t same as -mcpu=arcem\n"); | |
3474 | fprintf (stream, " -mHS\t\t\t same as -mcpu=archs\n"); | |
3475 | ||
3476 | fprintf (stream, " -mnps400\t\t enable NPS-400 extended instructions\n"); | |
3477 | fprintf (stream, " -mspfp\t\t enable single-precision floating point instructions\n"); | |
3478 | fprintf (stream, " -mdpfp\t\t enable double-precision floating point instructions\n"); | |
3479 | fprintf (stream, " -mfpuda\t\t enable double-precision assist floating " | |
3480 | "point\n\t\t\t instructions for ARC EM\n"); | |
3481 | ||
4670103e CZ |
3482 | fprintf (stream, |
3483 | " -mcode-density\t enable code density option for ARC EM\n"); | |
3484 | ||
3485 | fprintf (stream, _("\ | |
3486 | -EB assemble code for a big-endian cpu\n")); | |
3487 | fprintf (stream, _("\ | |
3488 | -EL assemble code for a little-endian cpu\n")); | |
3489 | fprintf (stream, _("\ | |
bdd582db GM |
3490 | -mrelax enable relaxation\n")); |
3491 | ||
3492 | fprintf (stream, _("The following ARC-specific assembler options are " | |
3493 | "deprecated and are accepted\nfor compatibility only:\n")); | |
3494 | ||
3495 | fprintf (stream, _(" -mEA\n" | |
3496 | " -mbarrel-shifter\n" | |
3497 | " -mbarrel_shifter\n" | |
3498 | " -mcrc\n" | |
3499 | " -mdsp-packa\n" | |
3500 | " -mdsp_packa\n" | |
3501 | " -mdvbf\n" | |
3502 | " -mld-extension-reg-mask\n" | |
3503 | " -mlock\n" | |
3504 | " -mmac-24\n" | |
3505 | " -mmac-d16\n" | |
3506 | " -mmac_24\n" | |
3507 | " -mmac_d16\n" | |
3508 | " -mmin-max\n" | |
3509 | " -mmin_max\n" | |
3510 | " -mmul64\n" | |
3511 | " -mno-mpy\n" | |
3512 | " -mnorm\n" | |
3513 | " -mrtsc\n" | |
3514 | " -msimd\n" | |
3515 | " -mswap\n" | |
3516 | " -mswape\n" | |
3517 | " -mtelephony\n" | |
3518 | " -muser-mode-only\n" | |
3519 | " -mxy\n")); | |
886a2506 NC |
3520 | } |
3521 | ||
3522 | /* Find the proper relocation for the given opcode. */ | |
3523 | ||
3524 | static extended_bfd_reloc_code_real_type | |
3525 | find_reloc (const char *name, | |
3526 | const char *opcodename, | |
3527 | const struct arc_flags *pflags, | |
3528 | int nflg, | |
3529 | extended_bfd_reloc_code_real_type reloc) | |
3530 | { | |
3531 | unsigned int i; | |
3532 | int j; | |
24b368f8 | 3533 | bfd_boolean found_flag, tmp; |
886a2506 NC |
3534 | extended_bfd_reloc_code_real_type ret = BFD_RELOC_UNUSED; |
3535 | ||
3536 | for (i = 0; i < arc_num_equiv_tab; i++) | |
3537 | { | |
3538 | const struct arc_reloc_equiv_tab *r = &arc_reloc_equiv[i]; | |
3539 | ||
3540 | /* Find the entry. */ | |
3541 | if (strcmp (name, r->name)) | |
3542 | continue; | |
3543 | if (r->mnemonic && (strcmp (r->mnemonic, opcodename))) | |
3544 | continue; | |
24b368f8 | 3545 | if (r->flags[0]) |
886a2506 NC |
3546 | { |
3547 | if (!nflg) | |
3548 | continue; | |
3549 | found_flag = FALSE; | |
24b368f8 CZ |
3550 | unsigned * psflg = (unsigned *)r->flags; |
3551 | do | |
3552 | { | |
3553 | tmp = FALSE; | |
3554 | for (j = 0; j < nflg; j++) | |
3555 | if (!strcmp (pflags[j].name, | |
3556 | arc_flag_operands[*psflg].name)) | |
3557 | { | |
3558 | tmp = TRUE; | |
3559 | break; | |
3560 | } | |
3561 | if (!tmp) | |
3562 | { | |
3563 | found_flag = FALSE; | |
3564 | break; | |
3565 | } | |
3566 | else | |
3567 | { | |
3568 | found_flag = TRUE; | |
3569 | } | |
3570 | ++ psflg; | |
3571 | } while (*psflg); | |
3572 | ||
886a2506 NC |
3573 | if (!found_flag) |
3574 | continue; | |
3575 | } | |
3576 | ||
3577 | if (reloc != r->oldreloc) | |
3578 | continue; | |
3579 | /* Found it. */ | |
3580 | ret = r->newreloc; | |
3581 | break; | |
3582 | } | |
3583 | ||
3584 | if (ret == BFD_RELOC_UNUSED) | |
3585 | as_bad (_("Unable to find %s relocation for instruction %s"), | |
3586 | name, opcodename); | |
3587 | return ret; | |
3588 | } | |
3589 | ||
4670103e CZ |
3590 | /* All the symbol types that are allowed to be used for |
3591 | relaxation. */ | |
3592 | ||
3593 | static bfd_boolean | |
3594 | may_relax_expr (expressionS tok) | |
3595 | { | |
3596 | /* Check if we have unrelaxable relocs. */ | |
3597 | switch (tok.X_md) | |
3598 | { | |
3599 | default: | |
3600 | break; | |
3601 | case O_plt: | |
3602 | return FALSE; | |
3603 | } | |
3604 | ||
3605 | switch (tok.X_op) | |
3606 | { | |
3607 | case O_symbol: | |
3608 | case O_multiply: | |
3609 | case O_divide: | |
3610 | case O_modulus: | |
3611 | case O_add: | |
3612 | case O_subtract: | |
3613 | break; | |
3614 | ||
3615 | default: | |
3616 | return FALSE; | |
3617 | } | |
3618 | return TRUE; | |
3619 | } | |
3620 | ||
3621 | /* Checks if flags are in line with relaxable insn. */ | |
3622 | ||
3623 | static bfd_boolean | |
3624 | relaxable_flag (const struct arc_relaxable_ins *ins, | |
3625 | const struct arc_flags *pflags, | |
3626 | int nflgs) | |
3627 | { | |
3628 | unsigned flag_class, | |
3629 | flag, | |
3630 | flag_class_idx = 0, | |
3631 | flag_idx = 0; | |
3632 | ||
3633 | const struct arc_flag_operand *flag_opand; | |
3634 | int i, counttrue = 0; | |
3635 | ||
3636 | /* Iterate through flags classes. */ | |
3637 | while ((flag_class = ins->flag_classes[flag_class_idx]) != 0) | |
3638 | { | |
3639 | /* Iterate through flags in flag class. */ | |
3640 | while ((flag = arc_flag_classes[flag_class].flags[flag_idx]) | |
3641 | != 0) | |
3642 | { | |
3643 | flag_opand = &arc_flag_operands[flag]; | |
3644 | /* Iterate through flags in ins to compare. */ | |
3645 | for (i = 0; i < nflgs; ++i) | |
3646 | { | |
3647 | if (strcmp (flag_opand->name, pflags[i].name) == 0) | |
3648 | ++counttrue; | |
3649 | } | |
3650 | ||
3651 | ++flag_idx; | |
3652 | } | |
3653 | ||
3654 | ++flag_class_idx; | |
3655 | flag_idx = 0; | |
3656 | } | |
3657 | ||
3658 | /* If counttrue == nflgs, then all flags have been found. */ | |
3659 | return (counttrue == nflgs ? TRUE : FALSE); | |
3660 | } | |
3661 | ||
3662 | /* Checks if operands are in line with relaxable insn. */ | |
3663 | ||
3664 | static bfd_boolean | |
3665 | relaxable_operand (const struct arc_relaxable_ins *ins, | |
3666 | const expressionS *tok, | |
3667 | int ntok) | |
3668 | { | |
3669 | const enum rlx_operand_type *operand = &ins->operands[0]; | |
3670 | int i = 0; | |
3671 | ||
3672 | while (*operand != EMPTY) | |
3673 | { | |
3674 | const expressionS *epr = &tok[i]; | |
3675 | ||
3676 | if (i != 0 && i >= ntok) | |
3677 | return FALSE; | |
3678 | ||
3679 | switch (*operand) | |
3680 | { | |
3681 | case IMMEDIATE: | |
3682 | if (!(epr->X_op == O_multiply | |
3683 | || epr->X_op == O_divide | |
3684 | || epr->X_op == O_modulus | |
3685 | || epr->X_op == O_add | |
3686 | || epr->X_op == O_subtract | |
3687 | || epr->X_op == O_symbol)) | |
3688 | return FALSE; | |
3689 | break; | |
3690 | ||
3691 | case REGISTER_DUP: | |
3692 | if ((i <= 0) | |
3693 | || (epr->X_add_number != tok[i - 1].X_add_number)) | |
3694 | return FALSE; | |
3695 | /* Fall through. */ | |
3696 | case REGISTER: | |
3697 | if (epr->X_op != O_register) | |
3698 | return FALSE; | |
3699 | break; | |
3700 | ||
3701 | case REGISTER_S: | |
3702 | if (epr->X_op != O_register) | |
3703 | return FALSE; | |
3704 | ||
3705 | switch (epr->X_add_number) | |
3706 | { | |
3707 | case 0: case 1: case 2: case 3: | |
3708 | case 12: case 13: case 14: case 15: | |
3709 | break; | |
3710 | default: | |
3711 | return FALSE; | |
3712 | } | |
3713 | break; | |
3714 | ||
3715 | case REGISTER_NO_GP: | |
3716 | if ((epr->X_op != O_register) | |
3717 | || (epr->X_add_number == 26)) /* 26 is the gp register. */ | |
3718 | return FALSE; | |
3719 | break; | |
3720 | ||
3721 | case BRACKET: | |
3722 | if (epr->X_op != O_bracket) | |
3723 | return FALSE; | |
3724 | break; | |
3725 | ||
3726 | default: | |
3727 | /* Don't understand, bail out. */ | |
3728 | return FALSE; | |
3729 | break; | |
3730 | } | |
3731 | ||
3732 | ++i; | |
3733 | operand = &ins->operands[i]; | |
3734 | } | |
3735 | ||
3736 | return (i == ntok ? TRUE : FALSE); | |
3737 | } | |
3738 | ||
3739 | /* Return TRUE if this OPDCODE is a candidate for relaxation. */ | |
3740 | ||
3741 | static bfd_boolean | |
3742 | relax_insn_p (const struct arc_opcode *opcode, | |
3743 | const expressionS *tok, | |
3744 | int ntok, | |
3745 | const struct arc_flags *pflags, | |
3746 | int nflg) | |
3747 | { | |
3748 | unsigned i; | |
3749 | bfd_boolean rv = FALSE; | |
3750 | ||
3751 | /* Check the relaxation table. */ | |
3752 | for (i = 0; i < arc_num_relaxable_ins && relaxation_state; ++i) | |
3753 | { | |
3754 | const struct arc_relaxable_ins *arc_rlx_ins = &arc_relaxable_insns[i]; | |
3755 | ||
3756 | if ((strcmp (opcode->name, arc_rlx_ins->mnemonic_r) == 0) | |
3757 | && may_relax_expr (tok[arc_rlx_ins->opcheckidx]) | |
3758 | && relaxable_operand (arc_rlx_ins, tok, ntok) | |
3759 | && relaxable_flag (arc_rlx_ins, pflags, nflg)) | |
3760 | { | |
3761 | rv = TRUE; | |
3762 | frag_now->fr_subtype = arc_relaxable_insns[i].subtype; | |
3763 | memcpy (&frag_now->tc_frag_data.tok, tok, | |
3764 | sizeof (expressionS) * ntok); | |
3765 | memcpy (&frag_now->tc_frag_data.pflags, pflags, | |
3766 | sizeof (struct arc_flags) * nflg); | |
3767 | frag_now->tc_frag_data.nflg = nflg; | |
3768 | frag_now->tc_frag_data.ntok = ntok; | |
3769 | break; | |
3770 | } | |
3771 | } | |
3772 | ||
3773 | return rv; | |
3774 | } | |
3775 | ||
886a2506 NC |
3776 | /* Turn an opcode description and a set of arguments into |
3777 | an instruction and a fixup. */ | |
3778 | ||
3779 | static void | |
3780 | assemble_insn (const struct arc_opcode *opcode, | |
3781 | const expressionS *tok, | |
3782 | int ntok, | |
3783 | const struct arc_flags *pflags, | |
3784 | int nflg, | |
3785 | struct arc_insn *insn) | |
3786 | { | |
3787 | const expressionS *reloc_exp = NULL; | |
3788 | unsigned image; | |
3789 | const unsigned char *argidx; | |
3790 | int i; | |
3791 | int tokidx = 0; | |
3792 | unsigned char pcrel = 0; | |
3793 | bfd_boolean needGOTSymbol; | |
3794 | bfd_boolean has_delay_slot = FALSE; | |
3795 | extended_bfd_reloc_code_real_type reloc = BFD_RELOC_UNUSED; | |
3796 | ||
3797 | memset (insn, 0, sizeof (*insn)); | |
3798 | image = opcode->opcode; | |
3799 | ||
3800 | pr_debug ("%s:%d: assemble_insn: %s using opcode %x\n", | |
3801 | frag_now->fr_file, frag_now->fr_line, opcode->name, | |
3802 | opcode->opcode); | |
3803 | ||
3804 | /* Handle operands. */ | |
3805 | for (argidx = opcode->operands; *argidx; ++argidx) | |
3806 | { | |
3807 | const struct arc_operand *operand = &arc_operands[*argidx]; | |
3808 | const expressionS *t = (const expressionS *) 0; | |
3809 | ||
db18dbab | 3810 | if (ARC_OPERAND_IS_FAKE (operand)) |
886a2506 NC |
3811 | continue; |
3812 | ||
3813 | if (operand->flags & ARC_OPERAND_DUPLICATE) | |
3814 | { | |
3815 | /* Duplicate operand, already inserted. */ | |
3816 | tokidx ++; | |
3817 | continue; | |
3818 | } | |
3819 | ||
3820 | if (tokidx >= ntok) | |
3821 | { | |
3822 | abort (); | |
3823 | } | |
3824 | else | |
3825 | t = &tok[tokidx++]; | |
3826 | ||
3827 | /* Regardless if we have a reloc or not mark the instruction | |
3828 | limm if it is the case. */ | |
3829 | if (operand->flags & ARC_OPERAND_LIMM) | |
3830 | insn->has_limm = TRUE; | |
3831 | ||
3832 | switch (t->X_op) | |
3833 | { | |
3834 | case O_register: | |
3835 | image = insert_operand (image, operand, regno (t->X_add_number), | |
3836 | NULL, 0); | |
3837 | break; | |
3838 | ||
3839 | case O_constant: | |
3840 | image = insert_operand (image, operand, t->X_add_number, NULL, 0); | |
3841 | reloc_exp = t; | |
3842 | if (operand->flags & ARC_OPERAND_LIMM) | |
3843 | insn->limm = t->X_add_number; | |
3844 | break; | |
3845 | ||
3846 | case O_bracket: | |
db18dbab GM |
3847 | case O_colon: |
3848 | case O_addrtype: | |
3849 | /* Ignore brackets, colons, and address types. */ | |
886a2506 NC |
3850 | break; |
3851 | ||
3852 | case O_absent: | |
3853 | gas_assert (operand->flags & ARC_OPERAND_IGNORE); | |
3854 | break; | |
3855 | ||
3856 | case O_subtract: | |
3857 | /* Maybe register range. */ | |
3858 | if ((t->X_add_number == 0) | |
3859 | && contains_register (t->X_add_symbol) | |
3860 | && contains_register (t->X_op_symbol)) | |
3861 | { | |
3862 | int regs; | |
3863 | ||
3864 | regs = get_register (t->X_add_symbol); | |
3865 | regs <<= 16; | |
3866 | regs |= get_register (t->X_op_symbol); | |
3867 | image = insert_operand (image, operand, regs, NULL, 0); | |
3868 | break; | |
3869 | } | |
3870 | ||
3871 | default: | |
3872 | /* This operand needs a relocation. */ | |
3873 | needGOTSymbol = FALSE; | |
3874 | ||
3875 | switch (t->X_md) | |
3876 | { | |
3877 | case O_plt: | |
c810e0b8 | 3878 | if (opcode->insn_class == JUMP) |
6ec1f282 CZ |
3879 | as_bad_where (frag_now->fr_file, frag_now->fr_line, |
3880 | _("Unable to use @plt relocatio for insn %s"), | |
3881 | opcode->name); | |
886a2506 NC |
3882 | needGOTSymbol = TRUE; |
3883 | reloc = find_reloc ("plt", opcode->name, | |
3884 | pflags, nflg, | |
3885 | operand->default_reloc); | |
3886 | break; | |
3887 | ||
3888 | case O_gotoff: | |
3889 | case O_gotpc: | |
3890 | needGOTSymbol = TRUE; | |
3891 | reloc = ARC_RELOC_TABLE (t->X_md)->reloc; | |
3892 | break; | |
3893 | case O_pcl: | |
3894 | reloc = ARC_RELOC_TABLE (t->X_md)->reloc; | |
c810e0b8 | 3895 | if (ARC_SHORT (opcode->mask) || opcode->insn_class == JUMP) |
886a2506 NC |
3896 | as_bad_where (frag_now->fr_file, frag_now->fr_line, |
3897 | _("Unable to use @pcl relocation for insn %s"), | |
3898 | opcode->name); | |
3899 | break; | |
3900 | case O_sda: | |
3901 | reloc = find_reloc ("sda", opcode->name, | |
3902 | pflags, nflg, | |
3903 | operand->default_reloc); | |
3904 | break; | |
3905 | case O_tlsgd: | |
3906 | case O_tlsie: | |
3907 | needGOTSymbol = TRUE; | |
3908 | /* Fall-through. */ | |
3909 | ||
3910 | case O_tpoff: | |
3911 | case O_dtpoff: | |
3912 | reloc = ARC_RELOC_TABLE (t->X_md)->reloc; | |
3913 | break; | |
3914 | ||
3915 | case O_tpoff9: /*FIXME! Check for the conditionality of | |
3916 | the insn. */ | |
3917 | case O_dtpoff9: /*FIXME! Check for the conditionality of | |
3918 | the insn. */ | |
3919 | as_bad (_("TLS_*_S9 relocs are not supported yet")); | |
3920 | break; | |
3921 | ||
3922 | default: | |
3923 | /* Just consider the default relocation. */ | |
3924 | reloc = operand->default_reloc; | |
3925 | break; | |
3926 | } | |
3927 | ||
3928 | if (needGOTSymbol && (GOT_symbol == NULL)) | |
3929 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
3930 | ||
3931 | reloc_exp = t; | |
3932 | ||
3933 | #if 0 | |
3934 | if (reloc > 0) | |
3935 | { | |
3936 | /* sanity checks. */ | |
3937 | reloc_howto_type *reloc_howto | |
3938 | = bfd_reloc_type_lookup (stdoutput, | |
3939 | (bfd_reloc_code_real_type) reloc); | |
3940 | unsigned reloc_bitsize = reloc_howto->bitsize; | |
3941 | if (reloc_howto->rightshift) | |
3942 | reloc_bitsize -= reloc_howto->rightshift; | |
3943 | if (reloc_bitsize != operand->bits) | |
3944 | { | |
3945 | as_bad (_("invalid relocation %s for field"), | |
3946 | bfd_get_reloc_code_name (reloc)); | |
3947 | return; | |
3948 | } | |
3949 | } | |
3950 | #endif | |
3951 | if (insn->nfixups >= MAX_INSN_FIXUPS) | |
3952 | as_fatal (_("too many fixups")); | |
3953 | ||
3954 | struct arc_fixup *fixup; | |
3955 | fixup = &insn->fixups[insn->nfixups++]; | |
3956 | fixup->exp = *t; | |
3957 | fixup->reloc = reloc; | |
3958 | pcrel = (operand->flags & ARC_OPERAND_PCREL) ? 1 : 0; | |
3959 | fixup->pcrel = pcrel; | |
3960 | fixup->islong = (operand->flags & ARC_OPERAND_LIMM) ? | |
3961 | TRUE : FALSE; | |
3962 | break; | |
3963 | } | |
3964 | } | |
3965 | ||
3966 | /* Handle flags. */ | |
3967 | for (i = 0; i < nflg; i++) | |
3968 | { | |
f36e33da | 3969 | const struct arc_flag_operand *flg_operand = pflags[i].flgp; |
886a2506 NC |
3970 | |
3971 | /* Check if the instruction has a delay slot. */ | |
3972 | if (!strcmp (flg_operand->name, "d")) | |
3973 | has_delay_slot = TRUE; | |
3974 | ||
3975 | /* There is an exceptional case when we cannot insert a flag | |
3976 | just as it is. The .T flag must be handled in relation with | |
3977 | the relative address. */ | |
3978 | if (!strcmp (flg_operand->name, "t") | |
3979 | || !strcmp (flg_operand->name, "nt")) | |
3980 | { | |
3981 | unsigned bitYoperand = 0; | |
3982 | /* FIXME! move selection bbit/brcc in arc-opc.c. */ | |
3983 | if (!strcmp (flg_operand->name, "t")) | |
3984 | if (!strcmp (opcode->name, "bbit0") | |
3985 | || !strcmp (opcode->name, "bbit1")) | |
3986 | bitYoperand = arc_NToperand; | |
3987 | else | |
3988 | bitYoperand = arc_Toperand; | |
3989 | else | |
3990 | if (!strcmp (opcode->name, "bbit0") | |
3991 | || !strcmp (opcode->name, "bbit1")) | |
3992 | bitYoperand = arc_Toperand; | |
3993 | else | |
3994 | bitYoperand = arc_NToperand; | |
3995 | ||
3996 | gas_assert (reloc_exp != NULL); | |
3997 | if (reloc_exp->X_op == O_constant) | |
3998 | { | |
3999 | /* Check if we have a constant and solved it | |
4000 | immediately. */ | |
4001 | offsetT val = reloc_exp->X_add_number; | |
4002 | image |= insert_operand (image, &arc_operands[bitYoperand], | |
4003 | val, NULL, 0); | |
4004 | } | |
4005 | else | |
4006 | { | |
4007 | struct arc_fixup *fixup; | |
4008 | ||
4009 | if (insn->nfixups >= MAX_INSN_FIXUPS) | |
4010 | as_fatal (_("too many fixups")); | |
4011 | ||
4012 | fixup = &insn->fixups[insn->nfixups++]; | |
4013 | fixup->exp = *reloc_exp; | |
4014 | fixup->reloc = -bitYoperand; | |
4015 | fixup->pcrel = pcrel; | |
4016 | fixup->islong = FALSE; | |
4017 | } | |
4018 | } | |
4019 | else | |
4020 | image |= (flg_operand->code & ((1 << flg_operand->bits) - 1)) | |
4021 | << flg_operand->shift; | |
4022 | } | |
4023 | ||
4670103e CZ |
4024 | insn->relax = relax_insn_p (opcode, tok, ntok, pflags, nflg); |
4025 | ||
886a2506 NC |
4026 | /* Short instruction? */ |
4027 | insn->short_insn = ARC_SHORT (opcode->mask) ? TRUE : FALSE; | |
4028 | ||
4029 | insn->insn = image; | |
4030 | ||
4031 | /* Update last insn status. */ | |
4032 | arc_last_insns[1] = arc_last_insns[0]; | |
4033 | arc_last_insns[0].opcode = opcode; | |
4034 | arc_last_insns[0].has_limm = insn->has_limm; | |
4035 | arc_last_insns[0].has_delay_slot = has_delay_slot; | |
4036 | ||
4037 | /* Check if the current instruction is legally used. */ | |
4038 | if (arc_last_insns[1].has_delay_slot | |
4039 | && is_br_jmp_insn_p (arc_last_insns[0].opcode)) | |
4040 | as_bad_where (frag_now->fr_file, frag_now->fr_line, | |
4041 | _("A jump/branch instruction in delay slot.")); | |
4042 | } | |
4043 | ||
886a2506 NC |
4044 | void |
4045 | arc_handle_align (fragS* fragP) | |
4046 | { | |
4047 | if ((fragP)->fr_type == rs_align_code) | |
4048 | { | |
4049 | char *dest = (fragP)->fr_literal + (fragP)->fr_fix; | |
4050 | valueT count = ((fragP)->fr_next->fr_address | |
4051 | - (fragP)->fr_address - (fragP)->fr_fix); | |
4052 | ||
4053 | (fragP)->fr_var = 2; | |
4054 | ||
4055 | if (count & 1)/* Padding in the gap till the next 2-byte | |
4056 | boundary with 0s. */ | |
4057 | { | |
4058 | (fragP)->fr_fix++; | |
4059 | *dest++ = 0; | |
4060 | } | |
4061 | /* Writing nop_s. */ | |
4062 | md_number_to_chars (dest, NOP_OPCODE_S, 2); | |
4063 | } | |
4064 | } | |
4065 | ||
4066 | /* Here we decide which fixups can be adjusted to make them relative | |
4067 | to the beginning of the section instead of the symbol. Basically | |
4068 | we need to make sure that the dynamic relocations are done | |
4069 | correctly, so in some cases we force the original symbol to be | |
4070 | used. */ | |
4071 | ||
4072 | int | |
4073 | tc_arc_fix_adjustable (fixS *fixP) | |
4074 | { | |
4075 | ||
4076 | /* Prevent all adjustments to global symbols. */ | |
4077 | if (S_IS_EXTERNAL (fixP->fx_addsy)) | |
4078 | return 0; | |
4079 | if (S_IS_WEAK (fixP->fx_addsy)) | |
4080 | return 0; | |
4081 | ||
4082 | /* Adjust_reloc_syms doesn't know about the GOT. */ | |
4083 | switch (fixP->fx_r_type) | |
4084 | { | |
4085 | case BFD_RELOC_ARC_GOTPC32: | |
4086 | case BFD_RELOC_ARC_PLT32: | |
4087 | case BFD_RELOC_ARC_S25H_PCREL_PLT: | |
4088 | case BFD_RELOC_ARC_S21H_PCREL_PLT: | |
4089 | case BFD_RELOC_ARC_S25W_PCREL_PLT: | |
4090 | case BFD_RELOC_ARC_S21W_PCREL_PLT: | |
4091 | return 0; | |
4092 | ||
4093 | default: | |
4094 | break; | |
4095 | } | |
4096 | ||
841fdfcd | 4097 | return 1; |
886a2506 NC |
4098 | } |
4099 | ||
4100 | /* Compute the reloc type of an expression EXP. */ | |
4101 | ||
4102 | static void | |
4103 | arc_check_reloc (expressionS *exp, | |
4104 | bfd_reloc_code_real_type *r_type_p) | |
4105 | { | |
4106 | if (*r_type_p == BFD_RELOC_32 | |
4107 | && exp->X_op == O_subtract | |
4108 | && exp->X_op_symbol != NULL | |
4109 | && exp->X_op_symbol->bsym->section == now_seg) | |
6f4b1afc | 4110 | *r_type_p = BFD_RELOC_ARC_32_PCREL; |
886a2506 NC |
4111 | } |
4112 | ||
4113 | ||
4114 | /* Add expression EXP of SIZE bytes to offset OFF of fragment FRAG. */ | |
4115 | ||
4116 | void | |
4117 | arc_cons_fix_new (fragS *frag, | |
4118 | int off, | |
4119 | int size, | |
4120 | expressionS *exp, | |
4121 | bfd_reloc_code_real_type r_type) | |
4122 | { | |
4123 | r_type = BFD_RELOC_UNUSED; | |
4124 | ||
4125 | switch (size) | |
4126 | { | |
4127 | case 1: | |
4128 | r_type = BFD_RELOC_8; | |
4129 | break; | |
4130 | ||
4131 | case 2: | |
4132 | r_type = BFD_RELOC_16; | |
4133 | break; | |
4134 | ||
4135 | case 3: | |
4136 | r_type = BFD_RELOC_24; | |
4137 | break; | |
4138 | ||
4139 | case 4: | |
4140 | r_type = BFD_RELOC_32; | |
4141 | arc_check_reloc (exp, &r_type); | |
4142 | break; | |
4143 | ||
4144 | case 8: | |
4145 | r_type = BFD_RELOC_64; | |
4146 | break; | |
4147 | ||
4148 | default: | |
4149 | as_bad (_("unsupported BFD relocation size %u"), size); | |
4150 | r_type = BFD_RELOC_UNUSED; | |
4151 | } | |
4152 | ||
4153 | fix_new_exp (frag, off, size, exp, 0, r_type); | |
4154 | } | |
4155 | ||
4156 | /* The actual routine that checks the ZOL conditions. */ | |
4157 | ||
4158 | static void | |
4159 | check_zol (symbolS *s) | |
4160 | { | |
4161 | switch (arc_mach_type) | |
4162 | { | |
4163 | case bfd_mach_arc_arcv2: | |
4164 | if (arc_target & ARC_OPCODE_ARCv2EM) | |
4165 | return; | |
4166 | ||
4167 | if (is_br_jmp_insn_p (arc_last_insns[0].opcode) | |
4168 | || arc_last_insns[1].has_delay_slot) | |
4169 | as_bad (_("Jump/Branch instruction detected at the end of the ZOL label @%s"), | |
4170 | S_GET_NAME (s)); | |
4171 | ||
4172 | break; | |
4173 | case bfd_mach_arc_arc600: | |
4174 | ||
4175 | if (is_kernel_insn_p (arc_last_insns[0].opcode)) | |
4176 | as_bad (_("Kernel instruction detected at the end of the ZOL label @%s"), | |
4177 | S_GET_NAME (s)); | |
4178 | ||
4179 | if (arc_last_insns[0].has_limm | |
4180 | && is_br_jmp_insn_p (arc_last_insns[0].opcode)) | |
4181 | as_bad (_("A jump instruction with long immediate detected at the \ | |
4182 | end of the ZOL label @%s"), S_GET_NAME (s)); | |
4183 | ||
4184 | /* Fall through. */ | |
4185 | case bfd_mach_arc_arc700: | |
4186 | if (arc_last_insns[0].has_delay_slot) | |
4187 | as_bad (_("An illegal use of delay slot detected at the end of the ZOL label @%s"), | |
4188 | S_GET_NAME (s)); | |
4189 | ||
4190 | break; | |
4191 | default: | |
4192 | break; | |
4193 | } | |
4194 | } | |
4195 | ||
4196 | /* If ZOL end check the last two instruction for illegals. */ | |
4197 | void | |
4198 | arc_frob_label (symbolS * sym) | |
4199 | { | |
4200 | if (ARC_GET_FLAG (sym) & ARC_FLAG_ZOL) | |
4201 | check_zol (sym); | |
4202 | ||
4203 | dwarf2_emit_label (sym); | |
ea1562b3 | 4204 | } |
4670103e CZ |
4205 | |
4206 | /* Used because generic relaxation assumes a pc-rel value whilst we | |
4207 | also relax instructions that use an absolute value resolved out of | |
4208 | relative values (if that makes any sense). An example: 'add r1, | |
4209 | r2, @.L2 - .' The symbols . and @.L2 are relative to the section | |
4210 | but if they're in the same section we can subtract the section | |
4211 | offset relocation which ends up in a resolved value. So if @.L2 is | |
4212 | .text + 0x50 and . is .text + 0x10, we can say that .text + 0x50 - | |
4213 | .text + 0x40 = 0x10. */ | |
4214 | int | |
4215 | arc_pcrel_adjust (fragS *fragP) | |
4216 | { | |
4217 | if (!fragP->tc_frag_data.pcrel) | |
4218 | return fragP->fr_address + fragP->fr_fix; | |
4219 | ||
4220 | return 0; | |
4221 | } | |
726c18e1 CZ |
4222 | |
4223 | /* Initialize the DWARF-2 unwind information for this procedure. */ | |
4224 | ||
4225 | void | |
4226 | tc_arc_frame_initial_instructions (void) | |
4227 | { | |
4228 | /* Stack pointer is register 28. */ | |
45a54ee5 | 4229 | cfi_add_CFA_def_cfa (28, 0); |
726c18e1 CZ |
4230 | } |
4231 | ||
4232 | int | |
4233 | tc_arc_regname_to_dw2regnum (char *regname) | |
4234 | { | |
4235 | struct symbol *sym; | |
4236 | ||
4237 | sym = hash_find (arc_reg_hash, regname); | |
4238 | if (sym) | |
4239 | return S_GET_VALUE (sym); | |
4240 | ||
4241 | return -1; | |
4242 | } | |
37ab9779 CZ |
4243 | |
4244 | /* Adjust the symbol table. Delete found AUX register symbols. */ | |
4245 | ||
4246 | void | |
4247 | arc_adjust_symtab (void) | |
4248 | { | |
4249 | symbolS * sym; | |
4250 | ||
4251 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
4252 | { | |
4253 | /* I've created a symbol during parsing process. Now, remove | |
4254 | the symbol as it is found to be an AUX register. */ | |
4255 | if (ARC_GET_FLAG (sym) & ARC_FLAG_AUX) | |
4256 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
4257 | } | |
4258 | ||
4259 | /* Now do generic ELF adjustments. */ | |
4260 | elf_adjust_symtab (); | |
4261 | } | |
b99747ae CZ |
4262 | |
4263 | static void | |
4264 | tokenize_extinsn (extInstruction_t *einsn) | |
4265 | { | |
4266 | char *p, c; | |
4267 | char *insn_name; | |
4268 | unsigned char major_opcode; | |
4269 | unsigned char sub_opcode; | |
4270 | unsigned char syntax_class = 0; | |
4271 | unsigned char syntax_class_modifiers = 0; | |
4272 | unsigned char suffix_class = 0; | |
4273 | unsigned int i; | |
4274 | ||
4275 | SKIP_WHITESPACE (); | |
4276 | ||
4277 | /* 1st: get instruction name. */ | |
4278 | p = input_line_pointer; | |
4279 | c = get_symbol_name (&p); | |
4280 | ||
4281 | insn_name = xstrdup (p); | |
4282 | restore_line_pointer (c); | |
4283 | ||
4284 | /* 2nd: get major opcode. */ | |
4285 | if (*input_line_pointer != ',') | |
4286 | { | |
4287 | as_bad (_("expected comma after instruction name")); | |
4288 | ignore_rest_of_line (); | |
4289 | return; | |
4290 | } | |
4291 | input_line_pointer++; | |
4292 | major_opcode = get_absolute_expression (); | |
4293 | ||
4294 | /* 3rd: get sub-opcode. */ | |
4295 | SKIP_WHITESPACE (); | |
4296 | ||
4297 | if (*input_line_pointer != ',') | |
4298 | { | |
4299 | as_bad (_("expected comma after major opcode")); | |
4300 | ignore_rest_of_line (); | |
4301 | return; | |
4302 | } | |
4303 | input_line_pointer++; | |
4304 | sub_opcode = get_absolute_expression (); | |
4305 | ||
4306 | /* 4th: get suffix class. */ | |
4307 | SKIP_WHITESPACE (); | |
4308 | ||
4309 | if (*input_line_pointer != ',') | |
4310 | { | |
4311 | as_bad ("expected comma after sub opcode"); | |
4312 | ignore_rest_of_line (); | |
4313 | return; | |
4314 | } | |
4315 | input_line_pointer++; | |
4316 | ||
4317 | while (1) | |
4318 | { | |
4319 | SKIP_WHITESPACE (); | |
4320 | ||
4321 | for (i = 0; i < ARRAY_SIZE (suffixclass); i++) | |
4322 | { | |
4323 | if (!strncmp (suffixclass[i].name, input_line_pointer, | |
4324 | suffixclass[i].len)) | |
4325 | { | |
c810e0b8 | 4326 | suffix_class |= suffixclass[i].attr_class; |
b99747ae CZ |
4327 | input_line_pointer += suffixclass[i].len; |
4328 | break; | |
4329 | } | |
4330 | } | |
4331 | ||
4332 | if (i == ARRAY_SIZE (suffixclass)) | |
4333 | { | |
4334 | as_bad ("invalid suffix class"); | |
4335 | ignore_rest_of_line (); | |
4336 | return; | |
4337 | } | |
4338 | ||
4339 | SKIP_WHITESPACE (); | |
4340 | ||
4341 | if (*input_line_pointer == '|') | |
4342 | input_line_pointer++; | |
4343 | else | |
4344 | break; | |
4345 | } | |
4346 | ||
4347 | /* 5th: get syntax class and syntax class modifiers. */ | |
4348 | if (*input_line_pointer != ',') | |
4349 | { | |
4350 | as_bad ("expected comma after suffix class"); | |
4351 | ignore_rest_of_line (); | |
4352 | return; | |
4353 | } | |
4354 | input_line_pointer++; | |
4355 | ||
4356 | while (1) | |
4357 | { | |
4358 | SKIP_WHITESPACE (); | |
4359 | ||
4360 | for (i = 0; i < ARRAY_SIZE (syntaxclassmod); i++) | |
4361 | { | |
4362 | if (!strncmp (syntaxclassmod[i].name, | |
4363 | input_line_pointer, | |
4364 | syntaxclassmod[i].len)) | |
4365 | { | |
c810e0b8 | 4366 | syntax_class_modifiers |= syntaxclassmod[i].attr_class; |
b99747ae CZ |
4367 | input_line_pointer += syntaxclassmod[i].len; |
4368 | break; | |
4369 | } | |
4370 | } | |
4371 | ||
4372 | if (i == ARRAY_SIZE (syntaxclassmod)) | |
4373 | { | |
4374 | for (i = 0; i < ARRAY_SIZE (syntaxclass); i++) | |
4375 | { | |
4376 | if (!strncmp (syntaxclass[i].name, | |
4377 | input_line_pointer, | |
4378 | syntaxclass[i].len)) | |
4379 | { | |
c810e0b8 | 4380 | syntax_class |= syntaxclass[i].attr_class; |
b99747ae CZ |
4381 | input_line_pointer += syntaxclass[i].len; |
4382 | break; | |
4383 | } | |
4384 | } | |
4385 | ||
4386 | if (i == ARRAY_SIZE (syntaxclass)) | |
4387 | { | |
4388 | as_bad ("missing syntax class"); | |
4389 | ignore_rest_of_line (); | |
4390 | return; | |
4391 | } | |
4392 | } | |
4393 | ||
4394 | SKIP_WHITESPACE (); | |
4395 | ||
4396 | if (*input_line_pointer == '|') | |
4397 | input_line_pointer++; | |
4398 | else | |
4399 | break; | |
4400 | } | |
4401 | ||
4402 | demand_empty_rest_of_line (); | |
4403 | ||
4404 | einsn->name = insn_name; | |
4405 | einsn->major = major_opcode; | |
4406 | einsn->minor = sub_opcode; | |
4407 | einsn->syntax = syntax_class; | |
4408 | einsn->modsyn = syntax_class_modifiers; | |
4409 | einsn->suffix = suffix_class; | |
4410 | einsn->flags = syntax_class | |
4411 | | (syntax_class_modifiers & ARC_OP1_IMM_IMPLIED ? 0x10 : 0); | |
4412 | } | |
4413 | ||
4414 | /* Generate an extension section. */ | |
4415 | ||
4416 | static int | |
4417 | arc_set_ext_seg (void) | |
4418 | { | |
4419 | if (!arcext_section) | |
4420 | { | |
4421 | arcext_section = subseg_new (".arcextmap", 0); | |
4422 | bfd_set_section_flags (stdoutput, arcext_section, | |
4423 | SEC_READONLY | SEC_HAS_CONTENTS); | |
4424 | } | |
4425 | else | |
4426 | subseg_set (arcext_section, 0); | |
4427 | return 1; | |
4428 | } | |
4429 | ||
4430 | /* Create an extension instruction description in the arc extension | |
4431 | section of the output file. | |
4432 | The structure for an instruction is like this: | |
4433 | [0]: Length of the record. | |
4434 | [1]: Type of the record. | |
4435 | ||
4436 | [2]: Major opcode. | |
4437 | [3]: Sub-opcode. | |
4438 | [4]: Syntax (flags). | |
4439 | [5]+ Name instruction. | |
4440 | ||
4441 | The sequence is terminated by an empty entry. */ | |
4442 | ||
4443 | static void | |
4444 | create_extinst_section (extInstruction_t *einsn) | |
4445 | { | |
4446 | ||
4447 | segT old_sec = now_seg; | |
4448 | int old_subsec = now_subseg; | |
4449 | char *p; | |
4450 | int name_len = strlen (einsn->name); | |
4451 | ||
4452 | arc_set_ext_seg (); | |
4453 | ||
4454 | p = frag_more (1); | |
4455 | *p = 5 + name_len + 1; | |
4456 | p = frag_more (1); | |
4457 | *p = EXT_INSTRUCTION; | |
4458 | p = frag_more (1); | |
4459 | *p = einsn->major; | |
4460 | p = frag_more (1); | |
4461 | *p = einsn->minor; | |
4462 | p = frag_more (1); | |
4463 | *p = einsn->flags; | |
4464 | p = frag_more (name_len + 1); | |
4465 | strcpy (p, einsn->name); | |
4466 | ||
4467 | subseg_set (old_sec, old_subsec); | |
4468 | } | |
4469 | ||
4470 | /* Handler .extinstruction pseudo-op. */ | |
4471 | ||
4472 | static void | |
4473 | arc_extinsn (int ignore ATTRIBUTE_UNUSED) | |
4474 | { | |
4475 | extInstruction_t einsn; | |
4476 | struct arc_opcode *arc_ext_opcodes; | |
4477 | const char *errmsg = NULL; | |
4478 | unsigned char moplow, mophigh; | |
4479 | ||
4480 | memset (&einsn, 0, sizeof (einsn)); | |
4481 | tokenize_extinsn (&einsn); | |
4482 | ||
4483 | /* Check if the name is already used. */ | |
4484 | if (arc_find_opcode (einsn.name)) | |
4485 | as_warn (_("Pseudocode already used %s"), einsn.name); | |
4486 | ||
4487 | /* Check the opcode ranges. */ | |
4488 | moplow = 0x05; | |
4489 | mophigh = (arc_target & (ARC_OPCODE_ARCv2EM | |
4490 | | ARC_OPCODE_ARCv2HS)) ? 0x07 : 0x0a; | |
4491 | ||
4492 | if ((einsn.major > mophigh) || (einsn.major < moplow)) | |
4493 | as_fatal (_("major opcode not in range [0x%02x - 0x%02x]"), moplow, mophigh); | |
4494 | ||
4495 | if ((einsn.minor > 0x3f) && (einsn.major != 0x0a) | |
4496 | && (einsn.major != 5) && (einsn.major != 9)) | |
4497 | as_fatal (_("minor opcode not in range [0x00 - 0x3f]")); | |
4498 | ||
945e0f82 | 4499 | switch (einsn.syntax & ARC_SYNTAX_MASK) |
b99747ae CZ |
4500 | { |
4501 | case ARC_SYNTAX_3OP: | |
4502 | if (einsn.modsyn & ARC_OP1_IMM_IMPLIED) | |
4503 | as_fatal (_("Improper use of OP1_IMM_IMPLIED")); | |
4504 | break; | |
4505 | case ARC_SYNTAX_2OP: | |
945e0f82 CZ |
4506 | case ARC_SYNTAX_1OP: |
4507 | case ARC_SYNTAX_NOP: | |
b99747ae CZ |
4508 | if (einsn.modsyn & ARC_OP1_MUST_BE_IMM) |
4509 | as_fatal (_("Improper use of OP1_MUST_BE_IMM")); | |
4510 | break; | |
4511 | default: | |
4512 | break; | |
4513 | } | |
4514 | ||
4515 | arc_ext_opcodes = arcExtMap_genOpcode (&einsn, arc_target, &errmsg); | |
4516 | if (arc_ext_opcodes == NULL) | |
4517 | { | |
4518 | if (errmsg) | |
4519 | as_fatal ("%s", errmsg); | |
4520 | else | |
4521 | as_fatal (_("Couldn't generate extension instruction opcodes")); | |
4522 | } | |
4523 | else if (errmsg) | |
4524 | as_warn ("%s", errmsg); | |
4525 | ||
4526 | /* Insert the extension instruction. */ | |
4527 | arc_insert_opcode ((const struct arc_opcode *) arc_ext_opcodes); | |
4528 | ||
4529 | create_extinst_section (&einsn); | |
4530 | } | |
4531 | ||
f36e33da CZ |
4532 | static void |
4533 | tokenize_extregister (extRegister_t *ereg, int opertype) | |
4534 | { | |
4535 | char *name; | |
4536 | char *mode; | |
4537 | char c; | |
4538 | char *p; | |
4539 | int number, imode = 0; | |
4540 | bfd_boolean isCore_p = (opertype == EXT_CORE_REGISTER) ? TRUE : FALSE; | |
4541 | bfd_boolean isReg_p = (opertype == EXT_CORE_REGISTER | |
4542 | || opertype == EXT_AUX_REGISTER) ? TRUE : FALSE; | |
4543 | ||
4544 | /* 1st: get register name. */ | |
4545 | SKIP_WHITESPACE (); | |
4546 | p = input_line_pointer; | |
4547 | c = get_symbol_name (&p); | |
4548 | ||
4549 | name = xstrdup (p); | |
4550 | restore_line_pointer (c); | |
4551 | ||
4552 | /* 2nd: get register number. */ | |
4553 | SKIP_WHITESPACE (); | |
4554 | ||
4555 | if (*input_line_pointer != ',') | |
4556 | { | |
4557 | as_bad (_("expected comma after register name")); | |
4558 | ignore_rest_of_line (); | |
4559 | free (name); | |
4560 | return; | |
4561 | } | |
4562 | input_line_pointer++; | |
4563 | number = get_absolute_expression (); | |
4564 | ||
4565 | if (number < 0) | |
4566 | { | |
4567 | as_bad (_("negative operand number %d"), number); | |
4568 | ignore_rest_of_line (); | |
4569 | free (name); | |
4570 | return; | |
4571 | } | |
4572 | ||
4573 | if (isReg_p) | |
4574 | { | |
4575 | /* 3rd: get register mode. */ | |
4576 | SKIP_WHITESPACE (); | |
4577 | ||
4578 | if (*input_line_pointer != ',') | |
4579 | { | |
4580 | as_bad (_("expected comma after register number")); | |
4581 | ignore_rest_of_line (); | |
4582 | free (name); | |
4583 | return; | |
4584 | } | |
4585 | ||
4586 | input_line_pointer++; | |
4587 | mode = input_line_pointer; | |
4588 | ||
4589 | if (!strncmp (mode, "r|w", 3)) | |
4590 | { | |
4591 | imode = 0; | |
4592 | input_line_pointer += 3; | |
4593 | } | |
4594 | else if (!strncmp (mode, "r", 1)) | |
4595 | { | |
4596 | imode = ARC_REGISTER_READONLY; | |
4597 | input_line_pointer += 1; | |
4598 | } | |
4599 | else if (strncmp (mode, "w", 1)) | |
4600 | { | |
4601 | as_bad (_("invalid mode")); | |
4602 | ignore_rest_of_line (); | |
4603 | free (name); | |
4604 | return; | |
4605 | } | |
4606 | else | |
4607 | { | |
4608 | imode = ARC_REGISTER_WRITEONLY; | |
4609 | input_line_pointer += 1; | |
4610 | } | |
4611 | } | |
4612 | ||
4613 | if (isCore_p) | |
4614 | { | |
4615 | /* 4th: get core register shortcut. */ | |
4616 | SKIP_WHITESPACE (); | |
4617 | if (*input_line_pointer != ',') | |
4618 | { | |
4619 | as_bad (_("expected comma after register mode")); | |
4620 | ignore_rest_of_line (); | |
4621 | free (name); | |
4622 | return; | |
4623 | } | |
4624 | ||
4625 | input_line_pointer++; | |
4626 | ||
4627 | if (!strncmp (input_line_pointer, "cannot_shortcut", 15)) | |
4628 | { | |
4629 | imode |= ARC_REGISTER_NOSHORT_CUT; | |
4630 | input_line_pointer += 15; | |
4631 | } | |
4632 | else if (strncmp (input_line_pointer, "can_shortcut", 12)) | |
4633 | { | |
4634 | as_bad (_("shortcut designator invalid")); | |
4635 | ignore_rest_of_line (); | |
4636 | free (name); | |
4637 | return; | |
4638 | } | |
4639 | else | |
4640 | { | |
4641 | input_line_pointer += 12; | |
4642 | } | |
4643 | } | |
4644 | demand_empty_rest_of_line (); | |
4645 | ||
4646 | ereg->name = name; | |
4647 | ereg->number = number; | |
4648 | ereg->imode = imode; | |
4649 | } | |
4650 | ||
4651 | /* Create an extension register/condition description in the arc | |
4652 | extension section of the output file. | |
4653 | ||
4654 | The structure for an instruction is like this: | |
4655 | [0]: Length of the record. | |
4656 | [1]: Type of the record. | |
4657 | ||
4658 | For core regs and condition codes: | |
4659 | [2]: Value. | |
4660 | [3]+ Name. | |
4661 | ||
4662 | For auxilirary registers: | |
4663 | [2..5]: Value. | |
4664 | [6]+ Name | |
4665 | ||
4666 | The sequence is terminated by an empty entry. */ | |
4667 | ||
4668 | static void | |
4669 | create_extcore_section (extRegister_t *ereg, int opertype) | |
4670 | { | |
4671 | segT old_sec = now_seg; | |
4672 | int old_subsec = now_subseg; | |
4673 | char *p; | |
4674 | int name_len = strlen (ereg->name); | |
4675 | ||
4676 | arc_set_ext_seg (); | |
4677 | ||
4678 | switch (opertype) | |
4679 | { | |
4680 | case EXT_COND_CODE: | |
4681 | case EXT_CORE_REGISTER: | |
4682 | p = frag_more (1); | |
4683 | *p = 3 + name_len + 1; | |
4684 | p = frag_more (1); | |
4685 | *p = opertype; | |
4686 | p = frag_more (1); | |
4687 | *p = ereg->number; | |
4688 | break; | |
4689 | case EXT_AUX_REGISTER: | |
4690 | p = frag_more (1); | |
4691 | *p = 6 + name_len + 1; | |
4692 | p = frag_more (1); | |
4693 | *p = EXT_AUX_REGISTER; | |
4694 | p = frag_more (1); | |
4695 | *p = (ereg->number >> 24) & 0xff; | |
4696 | p = frag_more (1); | |
4697 | *p = (ereg->number >> 16) & 0xff; | |
4698 | p = frag_more (1); | |
4699 | *p = (ereg->number >> 8) & 0xff; | |
4700 | p = frag_more (1); | |
4701 | *p = (ereg->number) & 0xff; | |
4702 | break; | |
4703 | default: | |
4704 | break; | |
4705 | } | |
4706 | ||
4707 | p = frag_more (name_len + 1); | |
4708 | strcpy (p, ereg->name); | |
4709 | ||
4710 | subseg_set (old_sec, old_subsec); | |
4711 | } | |
4712 | ||
4713 | /* Handler .extCoreRegister pseudo-op. */ | |
4714 | ||
4715 | static void | |
4716 | arc_extcorereg (int opertype) | |
4717 | { | |
4718 | extRegister_t ereg; | |
4719 | struct arc_aux_reg *auxr; | |
4720 | const char *retval; | |
4721 | struct arc_flag_operand *ccode; | |
4722 | ||
4723 | memset (&ereg, 0, sizeof (ereg)); | |
4724 | tokenize_extregister (&ereg, opertype); | |
4725 | ||
4726 | switch (opertype) | |
4727 | { | |
4728 | case EXT_CORE_REGISTER: | |
4729 | /* Core register. */ | |
4730 | if (ereg.number > 60) | |
4731 | as_bad (_("core register %s value (%d) too large"), ereg.name, | |
4732 | ereg.number); | |
4733 | declare_register (ereg.name, ereg.number); | |
4734 | break; | |
4735 | case EXT_AUX_REGISTER: | |
4736 | /* Auxiliary register. */ | |
add39d23 | 4737 | auxr = XNEW (struct arc_aux_reg); |
f36e33da CZ |
4738 | auxr->name = ereg.name; |
4739 | auxr->cpu = arc_target; | |
4740 | auxr->subclass = NONE; | |
4741 | auxr->address = ereg.number; | |
4742 | retval = hash_insert (arc_aux_hash, auxr->name, (void *) auxr); | |
4743 | if (retval) | |
4744 | as_fatal (_("internal error: can't hash aux register '%s': %s"), | |
4745 | auxr->name, retval); | |
4746 | break; | |
4747 | case EXT_COND_CODE: | |
4748 | /* Condition code. */ | |
4749 | if (ereg.number > 31) | |
4750 | as_bad (_("condition code %s value (%d) too large"), ereg.name, | |
4751 | ereg.number); | |
4752 | ext_condcode.size ++; | |
4753 | ext_condcode.arc_ext_condcode = | |
add39d23 TS |
4754 | XRESIZEVEC (struct arc_flag_operand, ext_condcode.arc_ext_condcode, |
4755 | ext_condcode.size + 1); | |
f36e33da CZ |
4756 | if (ext_condcode.arc_ext_condcode == NULL) |
4757 | as_fatal (_("Virtual memory exhausted")); | |
4758 | ||
4759 | ccode = ext_condcode.arc_ext_condcode + ext_condcode.size - 1; | |
4760 | ccode->name = ereg.name; | |
4761 | ccode->code = ereg.number; | |
4762 | ccode->bits = 5; | |
4763 | ccode->shift = 0; | |
4764 | ccode->favail = 0; /* not used. */ | |
4765 | ccode++; | |
4766 | memset (ccode, 0, sizeof (struct arc_flag_operand)); | |
4767 | break; | |
4768 | default: | |
4769 | as_bad (_("Unknown extension")); | |
4770 | break; | |
4771 | } | |
4772 | create_extcore_section (&ereg, opertype); | |
4773 | } | |
4774 | ||
b99747ae CZ |
4775 | /* Local variables: |
4776 | eval: (c-set-style "gnu") | |
4777 | indent-tabs-mode: t | |
4778 | End: */ |