Commit | Line | Data |
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252b5132 | 1 | /* tc-arc.c -- Assembler for the ARC |
82704155 | 2 | Copyright (C) 1994-2019 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" |
886a2506 | 25 | #include "dwarf2dbg.h" |
726c18e1 | 26 | #include "dw2gencfi.h" |
3882b010 | 27 | #include "safe-ctype.h" |
886a2506 | 28 | |
252b5132 | 29 | #include "opcode/arc.h" |
53a346d8 | 30 | #include "opcode/arc-attrs.h" |
252b5132 | 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 | ||
53a346d8 CZ |
58 | #define ARC_GET_FLAG(s) (*symbol_get_tc (s)) |
59 | #define ARC_SET_FLAG(s,v) (*symbol_get_tc (s) |= (v)) | |
60 | #define streq(a, b) (strcmp (a, b) == 0) | |
61 | ||
4670103e CZ |
62 | /* Enum used to enumerate the relaxable ins operands. */ |
63 | enum rlx_operand_type | |
64 | { | |
65 | EMPTY = 0, | |
66 | REGISTER, | |
67 | REGISTER_S, /* Register for short instruction(s). */ | |
68 | REGISTER_NO_GP, /* Is a register but not gp register specifically. */ | |
69 | REGISTER_DUP, /* Duplication of previous operand of type register. */ | |
70 | IMMEDIATE, | |
71 | BRACKET | |
72 | }; | |
73 | ||
74 | enum arc_rlx_types | |
75 | { | |
76 | ARC_RLX_NONE = 0, | |
77 | ARC_RLX_BL_S, | |
78 | ARC_RLX_BL, | |
79 | ARC_RLX_B_S, | |
80 | ARC_RLX_B, | |
81 | ARC_RLX_ADD_U3, | |
82 | ARC_RLX_ADD_U6, | |
83 | ARC_RLX_ADD_LIMM, | |
84 | ARC_RLX_LD_U7, | |
85 | ARC_RLX_LD_S9, | |
86 | ARC_RLX_LD_LIMM, | |
87 | ARC_RLX_MOV_U8, | |
88 | ARC_RLX_MOV_S12, | |
89 | ARC_RLX_MOV_LIMM, | |
90 | ARC_RLX_SUB_U3, | |
91 | ARC_RLX_SUB_U6, | |
92 | ARC_RLX_SUB_LIMM, | |
93 | ARC_RLX_MPY_U6, | |
94 | ARC_RLX_MPY_LIMM, | |
95 | ARC_RLX_MOV_RU6, | |
96 | ARC_RLX_MOV_RLIMM, | |
97 | ARC_RLX_ADD_RRU6, | |
98 | ARC_RLX_ADD_RRLIMM, | |
99 | }; | |
100 | ||
886a2506 NC |
101 | /* Macros section. */ |
102 | ||
103 | #define regno(x) ((x) & 0x3F) | |
104 | #define is_ir_num(x) (((x) & ~0x3F) == 0) | |
8ddf6b2a CZ |
105 | #define is_code_density_p(sc) (((sc) == CD1 || (sc) == CD2)) |
106 | #define is_spfp_p(op) (((sc) == SPX)) | |
107 | #define is_dpfp_p(op) (((sc) == DPX)) | |
108 | #define is_fpuda_p(op) (((sc) == DPA)) | |
cf9bdae9 | 109 | #define is_br_jmp_insn_p(op) (((op)->insn_class == BRANCH \ |
110 | || (op)->insn_class == JUMP \ | |
111 | || (op)->insn_class == BRCC \ | |
112 | || (op)->insn_class == BBIT0 \ | |
113 | || (op)->insn_class == BBIT1 \ | |
114 | || (op)->insn_class == BI \ | |
115 | || (op)->insn_class == EI \ | |
116 | || (op)->insn_class == ENTER \ | |
117 | || (op)->insn_class == JLI \ | |
118 | || (op)->insn_class == LOOP \ | |
119 | || (op)->insn_class == LEAVE \ | |
120 | )) | |
c810e0b8 | 121 | #define is_kernel_insn_p(op) (((op)->insn_class == KERNEL)) |
bdd582db | 122 | #define is_nps400_p(op) (((sc) == NPS400)) |
0d2bcfaf | 123 | |
886a2506 NC |
124 | /* Generic assembler global variables which must be defined by all |
125 | targets. */ | |
0d2bcfaf | 126 | |
886a2506 | 127 | /* Characters which always start a comment. */ |
252b5132 RH |
128 | const char comment_chars[] = "#;"; |
129 | ||
886a2506 | 130 | /* Characters which start a comment at the beginning of a line. */ |
252b5132 RH |
131 | const char line_comment_chars[] = "#"; |
132 | ||
886a2506 NC |
133 | /* Characters which may be used to separate multiple commands on a |
134 | single line. */ | |
135 | const char line_separator_chars[] = "`"; | |
252b5132 | 136 | |
886a2506 NC |
137 | /* Characters which are used to indicate an exponent in a floating |
138 | point number. */ | |
252b5132 RH |
139 | const char EXP_CHARS[] = "eE"; |
140 | ||
bcee8eb8 AM |
141 | /* Chars that mean this number is a floating point constant |
142 | As in 0f12.456 or 0d1.2345e12. */ | |
252b5132 RH |
143 | const char FLT_CHARS[] = "rRsSfFdD"; |
144 | ||
145 | /* Byte order. */ | |
146 | extern int target_big_endian; | |
147 | const char *arc_target_format = DEFAULT_TARGET_FORMAT; | |
148 | static int byte_order = DEFAULT_BYTE_ORDER; | |
149 | ||
b99747ae CZ |
150 | /* Arc extension section. */ |
151 | static segT arcext_section; | |
152 | ||
4670103e CZ |
153 | /* By default relaxation is disabled. */ |
154 | static int relaxation_state = 0; | |
155 | ||
886a2506 | 156 | extern int arc_get_mach (char *); |
0d2bcfaf | 157 | |
4670103e | 158 | /* Forward declarations. */ |
886a2506 NC |
159 | static void arc_lcomm (int); |
160 | static void arc_option (int); | |
161 | static void arc_extra_reloc (int); | |
b99747ae | 162 | static void arc_extinsn (int); |
f36e33da | 163 | static void arc_extcorereg (int); |
53a346d8 | 164 | static void arc_attribute (int); |
4670103e | 165 | |
886a2506 | 166 | const pseudo_typeS md_pseudo_table[] = |
6f4b1afc CM |
167 | { |
168 | /* Make sure that .word is 32 bits. */ | |
169 | { "word", cons, 4 }, | |
886a2506 | 170 | |
6f4b1afc CM |
171 | { "align", s_align_bytes, 0 }, /* Defaulting is invalid (0). */ |
172 | { "lcomm", arc_lcomm, 0 }, | |
173 | { "lcommon", arc_lcomm, 0 }, | |
174 | { "cpu", arc_option, 0 }, | |
252b5132 | 175 | |
53a346d8 | 176 | { "arc_attribute", arc_attribute, 0 }, |
f36e33da CZ |
177 | { "extinstruction", arc_extinsn, 0 }, |
178 | { "extcoreregister", arc_extcorereg, EXT_CORE_REGISTER }, | |
179 | { "extauxregister", arc_extcorereg, EXT_AUX_REGISTER }, | |
180 | { "extcondcode", arc_extcorereg, EXT_COND_CODE }, | |
b99747ae | 181 | |
6f4b1afc CM |
182 | { "tls_gd_ld", arc_extra_reloc, BFD_RELOC_ARC_TLS_GD_LD }, |
183 | { "tls_gd_call", arc_extra_reloc, BFD_RELOC_ARC_TLS_GD_CALL }, | |
886a2506 | 184 | |
6f4b1afc CM |
185 | { NULL, NULL, 0 } |
186 | }; | |
252b5132 | 187 | |
252b5132 | 188 | const char *md_shortopts = ""; |
ea1562b3 NC |
189 | |
190 | enum options | |
6f4b1afc CM |
191 | { |
192 | OPTION_EB = OPTION_MD_BASE, | |
193 | OPTION_EL, | |
194 | ||
195 | OPTION_ARC600, | |
196 | OPTION_ARC601, | |
197 | OPTION_ARC700, | |
198 | OPTION_ARCEM, | |
199 | OPTION_ARCHS, | |
200 | ||
201 | OPTION_MCPU, | |
202 | OPTION_CD, | |
4670103e | 203 | OPTION_RELAX, |
bdd582db | 204 | OPTION_NPS400, |
6f4b1afc | 205 | |
ce440d63 GM |
206 | OPTION_SPFP, |
207 | OPTION_DPFP, | |
208 | OPTION_FPUDA, | |
209 | ||
6f4b1afc CM |
210 | /* The following options are deprecated and provided here only for |
211 | compatibility reasons. */ | |
212 | OPTION_USER_MODE, | |
213 | OPTION_LD_EXT_MASK, | |
214 | OPTION_SWAP, | |
215 | OPTION_NORM, | |
216 | OPTION_BARREL_SHIFT, | |
217 | OPTION_MIN_MAX, | |
218 | OPTION_NO_MPY, | |
219 | OPTION_EA, | |
220 | OPTION_MUL64, | |
221 | OPTION_SIMD, | |
6f4b1afc CM |
222 | OPTION_XMAC_D16, |
223 | OPTION_XMAC_24, | |
224 | OPTION_DSP_PACKA, | |
225 | OPTION_CRC, | |
226 | OPTION_DVBF, | |
227 | OPTION_TELEPHONY, | |
228 | OPTION_XYMEMORY, | |
229 | OPTION_LOCK, | |
230 | OPTION_SWAPE, | |
ce440d63 | 231 | OPTION_RTSC |
6f4b1afc | 232 | }; |
ea1562b3 NC |
233 | |
234 | struct option md_longopts[] = | |
6f4b1afc CM |
235 | { |
236 | { "EB", no_argument, NULL, OPTION_EB }, | |
237 | { "EL", no_argument, NULL, OPTION_EL }, | |
238 | { "mcpu", required_argument, NULL, OPTION_MCPU }, | |
239 | { "mA6", no_argument, NULL, OPTION_ARC600 }, | |
24b368f8 CZ |
240 | { "mARC600", no_argument, NULL, OPTION_ARC600 }, |
241 | { "mARC601", no_argument, NULL, OPTION_ARC601 }, | |
242 | { "mARC700", no_argument, NULL, OPTION_ARC700 }, | |
6f4b1afc CM |
243 | { "mA7", no_argument, NULL, OPTION_ARC700 }, |
244 | { "mEM", no_argument, NULL, OPTION_ARCEM }, | |
245 | { "mHS", no_argument, NULL, OPTION_ARCHS }, | |
246 | { "mcode-density", no_argument, NULL, OPTION_CD }, | |
4670103e | 247 | { "mrelax", no_argument, NULL, OPTION_RELAX }, |
bdd582db | 248 | { "mnps400", no_argument, NULL, OPTION_NPS400 }, |
6f4b1afc | 249 | |
ce440d63 GM |
250 | /* Floating point options */ |
251 | { "mspfp", no_argument, NULL, OPTION_SPFP}, | |
252 | { "mspfp-compact", no_argument, NULL, OPTION_SPFP}, | |
253 | { "mspfp_compact", no_argument, NULL, OPTION_SPFP}, | |
254 | { "mspfp-fast", no_argument, NULL, OPTION_SPFP}, | |
255 | { "mspfp_fast", no_argument, NULL, OPTION_SPFP}, | |
256 | { "mdpfp", no_argument, NULL, OPTION_DPFP}, | |
257 | { "mdpfp-compact", no_argument, NULL, OPTION_DPFP}, | |
258 | { "mdpfp_compact", no_argument, NULL, OPTION_DPFP}, | |
259 | { "mdpfp-fast", no_argument, NULL, OPTION_DPFP}, | |
260 | { "mdpfp_fast", no_argument, NULL, OPTION_DPFP}, | |
261 | { "mfpuda", no_argument, NULL, OPTION_FPUDA}, | |
262 | ||
6f4b1afc CM |
263 | /* The following options are deprecated and provided here only for |
264 | compatibility reasons. */ | |
265 | { "mav2em", no_argument, NULL, OPTION_ARCEM }, | |
266 | { "mav2hs", no_argument, NULL, OPTION_ARCHS }, | |
267 | { "muser-mode-only", no_argument, NULL, OPTION_USER_MODE }, | |
268 | { "mld-extension-reg-mask", required_argument, NULL, OPTION_LD_EXT_MASK }, | |
269 | { "mswap", no_argument, NULL, OPTION_SWAP }, | |
270 | { "mnorm", no_argument, NULL, OPTION_NORM }, | |
271 | { "mbarrel-shifter", no_argument, NULL, OPTION_BARREL_SHIFT }, | |
272 | { "mbarrel_shifter", no_argument, NULL, OPTION_BARREL_SHIFT }, | |
273 | { "mmin-max", no_argument, NULL, OPTION_MIN_MAX }, | |
274 | { "mmin_max", no_argument, NULL, OPTION_MIN_MAX }, | |
275 | { "mno-mpy", no_argument, NULL, OPTION_NO_MPY }, | |
276 | { "mea", no_argument, NULL, OPTION_EA }, | |
277 | { "mEA", no_argument, NULL, OPTION_EA }, | |
278 | { "mmul64", no_argument, NULL, OPTION_MUL64 }, | |
279 | { "msimd", no_argument, NULL, OPTION_SIMD}, | |
6f4b1afc CM |
280 | { "mmac-d16", no_argument, NULL, OPTION_XMAC_D16}, |
281 | { "mmac_d16", no_argument, NULL, OPTION_XMAC_D16}, | |
282 | { "mmac-24", no_argument, NULL, OPTION_XMAC_24}, | |
283 | { "mmac_24", no_argument, NULL, OPTION_XMAC_24}, | |
284 | { "mdsp-packa", no_argument, NULL, OPTION_DSP_PACKA}, | |
285 | { "mdsp_packa", no_argument, NULL, OPTION_DSP_PACKA}, | |
286 | { "mcrc", no_argument, NULL, OPTION_CRC}, | |
287 | { "mdvbf", no_argument, NULL, OPTION_DVBF}, | |
288 | { "mtelephony", no_argument, NULL, OPTION_TELEPHONY}, | |
289 | { "mxy", no_argument, NULL, OPTION_XYMEMORY}, | |
290 | { "mlock", no_argument, NULL, OPTION_LOCK}, | |
291 | { "mswape", no_argument, NULL, OPTION_SWAPE}, | |
292 | { "mrtsc", no_argument, NULL, OPTION_RTSC}, | |
6f4b1afc CM |
293 | |
294 | { NULL, no_argument, NULL, 0 } | |
295 | }; | |
252b5132 | 296 | |
886a2506 | 297 | size_t md_longopts_size = sizeof (md_longopts); |
0d2bcfaf | 298 | |
886a2506 | 299 | /* Local data and data types. */ |
252b5132 | 300 | |
886a2506 NC |
301 | /* Used since new relocation types are introduced in this |
302 | file (DUMMY_RELOC_LITUSE_*). */ | |
303 | typedef int extended_bfd_reloc_code_real_type; | |
252b5132 | 304 | |
886a2506 | 305 | struct arc_fixup |
252b5132 | 306 | { |
886a2506 | 307 | expressionS exp; |
252b5132 | 308 | |
886a2506 | 309 | extended_bfd_reloc_code_real_type reloc; |
252b5132 | 310 | |
886a2506 NC |
311 | /* index into arc_operands. */ |
312 | unsigned int opindex; | |
252b5132 | 313 | |
886a2506 NC |
314 | /* PC-relative, used by internals fixups. */ |
315 | unsigned char pcrel; | |
252b5132 | 316 | |
886a2506 NC |
317 | /* TRUE if this fixup is for LIMM operand. */ |
318 | bfd_boolean islong; | |
319 | }; | |
252b5132 | 320 | |
886a2506 NC |
321 | struct arc_insn |
322 | { | |
bdfe53e3 | 323 | unsigned long long int insn; |
886a2506 NC |
324 | int nfixups; |
325 | struct arc_fixup fixups[MAX_INSN_FIXUPS]; | |
326 | long limm; | |
91fdca6f | 327 | unsigned int len; /* Length of instruction in bytes. */ |
886a2506 NC |
328 | bfd_boolean has_limm; /* Boolean value: TRUE if limm field is |
329 | valid. */ | |
4670103e CZ |
330 | bfd_boolean relax; /* Boolean value: TRUE if needs |
331 | relaxation. */ | |
886a2506 | 332 | }; |
ea1562b3 | 333 | |
886a2506 NC |
334 | /* Structure to hold any last two instructions. */ |
335 | static struct arc_last_insn | |
252b5132 | 336 | { |
886a2506 NC |
337 | /* Saved instruction opcode. */ |
338 | const struct arc_opcode *opcode; | |
252b5132 | 339 | |
886a2506 NC |
340 | /* Boolean value: TRUE if current insn is short. */ |
341 | bfd_boolean has_limm; | |
252b5132 | 342 | |
886a2506 NC |
343 | /* Boolean value: TRUE if current insn has delay slot. */ |
344 | bfd_boolean has_delay_slot; | |
345 | } arc_last_insns[2]; | |
252b5132 | 346 | |
b99747ae CZ |
347 | /* Extension instruction suffix classes. */ |
348 | typedef struct | |
349 | { | |
350 | const char *name; | |
351 | int len; | |
c810e0b8 | 352 | int attr_class; |
b99747ae CZ |
353 | } attributes_t; |
354 | ||
355 | static const attributes_t suffixclass[] = | |
356 | { | |
357 | { "SUFFIX_FLAG", 11, ARC_SUFFIX_FLAG }, | |
358 | { "SUFFIX_COND", 11, ARC_SUFFIX_COND }, | |
359 | { "SUFFIX_NONE", 11, ARC_SUFFIX_NONE } | |
360 | }; | |
361 | ||
362 | /* Extension instruction syntax classes. */ | |
363 | static const attributes_t syntaxclass[] = | |
364 | { | |
365 | { "SYNTAX_3OP", 10, ARC_SYNTAX_3OP }, | |
945e0f82 CZ |
366 | { "SYNTAX_2OP", 10, ARC_SYNTAX_2OP }, |
367 | { "SYNTAX_1OP", 10, ARC_SYNTAX_1OP }, | |
368 | { "SYNTAX_NOP", 10, ARC_SYNTAX_NOP } | |
b99747ae CZ |
369 | }; |
370 | ||
371 | /* Extension instruction syntax classes modifiers. */ | |
372 | static const attributes_t syntaxclassmod[] = | |
373 | { | |
374 | { "OP1_IMM_IMPLIED" , 15, ARC_OP1_IMM_IMPLIED }, | |
375 | { "OP1_MUST_BE_IMM" , 15, ARC_OP1_MUST_BE_IMM } | |
376 | }; | |
377 | ||
f36e33da CZ |
378 | /* Extension register type. */ |
379 | typedef struct | |
380 | { | |
381 | char *name; | |
382 | int number; | |
383 | int imode; | |
384 | } extRegister_t; | |
385 | ||
386 | /* A structure to hold the additional conditional codes. */ | |
387 | static struct | |
388 | { | |
389 | struct arc_flag_operand *arc_ext_condcode; | |
390 | int size; | |
391 | } ext_condcode = { NULL, 0 }; | |
392 | ||
da5be039 AB |
393 | /* Structure to hold an entry in ARC_OPCODE_HASH. */ |
394 | struct arc_opcode_hash_entry | |
395 | { | |
396 | /* The number of pointers in the OPCODE list. */ | |
397 | size_t count; | |
398 | ||
399 | /* Points to a list of opcode pointers. */ | |
400 | const struct arc_opcode **opcode; | |
401 | }; | |
402 | ||
1328504b AB |
403 | /* Structure used for iterating through an arc_opcode_hash_entry. */ |
404 | struct arc_opcode_hash_entry_iterator | |
405 | { | |
406 | /* Index into the OPCODE element of the arc_opcode_hash_entry. */ | |
407 | size_t index; | |
408 | ||
409 | /* The specific ARC_OPCODE from the ARC_OPCODES table that was last | |
410 | returned by this iterator. */ | |
411 | const struct arc_opcode *opcode; | |
412 | }; | |
413 | ||
4670103e CZ |
414 | /* Forward declaration. */ |
415 | static void assemble_insn | |
416 | (const struct arc_opcode *, const expressionS *, int, | |
417 | const struct arc_flags *, int, struct arc_insn *); | |
418 | ||
bb65a718 AB |
419 | /* The selection of the machine type can come from different sources. This |
420 | enum is used to track how the selection was made in order to perform | |
421 | error checks. */ | |
422 | enum mach_selection_type | |
423 | { | |
424 | MACH_SELECTION_NONE, | |
425 | MACH_SELECTION_FROM_DEFAULT, | |
426 | MACH_SELECTION_FROM_CPU_DIRECTIVE, | |
427 | MACH_SELECTION_FROM_COMMAND_LINE | |
428 | }; | |
429 | ||
430 | /* How the current machine type was selected. */ | |
431 | static enum mach_selection_type mach_selection_mode = MACH_SELECTION_NONE; | |
0d2bcfaf | 432 | |
886a2506 NC |
433 | /* The hash table of instruction opcodes. */ |
434 | static struct hash_control *arc_opcode_hash; | |
0d2bcfaf | 435 | |
886a2506 NC |
436 | /* The hash table of register symbols. */ |
437 | static struct hash_control *arc_reg_hash; | |
252b5132 | 438 | |
f36e33da CZ |
439 | /* The hash table of aux register symbols. */ |
440 | static struct hash_control *arc_aux_hash; | |
441 | ||
db18dbab GM |
442 | /* The hash table of address types. */ |
443 | static struct hash_control *arc_addrtype_hash; | |
444 | ||
a9752fdf CZ |
445 | #define ARC_CPU_TYPE_A6xx(NAME,EXTRA) \ |
446 | { #NAME, ARC_OPCODE_ARC600, bfd_mach_arc_arc600, \ | |
447 | E_ARC_MACH_ARC600, EXTRA} | |
448 | #define ARC_CPU_TYPE_A7xx(NAME,EXTRA) \ | |
449 | { #NAME, ARC_OPCODE_ARC700, bfd_mach_arc_arc700, \ | |
450 | E_ARC_MACH_ARC700, EXTRA} | |
451 | #define ARC_CPU_TYPE_AV2EM(NAME,EXTRA) \ | |
452 | { #NAME, ARC_OPCODE_ARCv2EM, bfd_mach_arc_arcv2, \ | |
453 | EF_ARC_CPU_ARCV2EM, EXTRA} | |
454 | #define ARC_CPU_TYPE_AV2HS(NAME,EXTRA) \ | |
455 | { #NAME, ARC_OPCODE_ARCv2HS, bfd_mach_arc_arcv2, \ | |
456 | EF_ARC_CPU_ARCV2HS, EXTRA} | |
940171d0 AK |
457 | #define ARC_CPU_TYPE_NONE \ |
458 | { 0, 0, 0, 0, 0 } | |
a9752fdf | 459 | |
886a2506 NC |
460 | /* A table of CPU names and opcode sets. */ |
461 | static const struct cpu_type | |
462 | { | |
463 | const char *name; | |
464 | unsigned flags; | |
465 | int mach; | |
466 | unsigned eflags; | |
467 | unsigned features; | |
252b5132 | 468 | } |
886a2506 | 469 | cpu_types[] = |
252b5132 | 470 | { |
940171d0 | 471 | #include "elf/arc-cpu.def" |
886a2506 | 472 | }; |
252b5132 | 473 | |
bb65a718 | 474 | /* Information about the cpu/variant we're assembling for. */ |
53a346d8 | 475 | static struct cpu_type selected_cpu = { 0, 0, 0, E_ARC_OSABI_CURRENT, 0 }; |
bb050a69 | 476 | |
63741043 | 477 | /* TRUE if current assembly code uses RF16 only registers. */ |
478 | static bfd_boolean rf16_only = TRUE; | |
479 | ||
53a346d8 CZ |
480 | /* MPY option. */ |
481 | static unsigned mpy_option = 0; | |
482 | ||
483 | /* Use PIC. */ | |
484 | static unsigned pic_option = 0; | |
485 | ||
486 | /* Use small data. */ | |
487 | static unsigned sda_option = 0; | |
488 | ||
489 | /* Use TLS. */ | |
490 | static unsigned tls_option = 0; | |
bb65a718 | 491 | |
a9752fdf CZ |
492 | /* Command line given features. */ |
493 | static unsigned cl_features = 0; | |
494 | ||
886a2506 NC |
495 | /* Used by the arc_reloc_op table. Order is important. */ |
496 | #define O_gotoff O_md1 /* @gotoff relocation. */ | |
497 | #define O_gotpc O_md2 /* @gotpc relocation. */ | |
498 | #define O_plt O_md3 /* @plt relocation. */ | |
499 | #define O_sda O_md4 /* @sda relocation. */ | |
500 | #define O_pcl O_md5 /* @pcl relocation. */ | |
501 | #define O_tlsgd O_md6 /* @tlsgd relocation. */ | |
502 | #define O_tlsie O_md7 /* @tlsie relocation. */ | |
503 | #define O_tpoff9 O_md8 /* @tpoff9 relocation. */ | |
504 | #define O_tpoff O_md9 /* @tpoff relocation. */ | |
505 | #define O_dtpoff9 O_md10 /* @dtpoff9 relocation. */ | |
506 | #define O_dtpoff O_md11 /* @dtpoff relocation. */ | |
507 | #define O_last O_dtpoff | |
508 | ||
509 | /* Used to define a bracket as operand in tokens. */ | |
510 | #define O_bracket O_md32 | |
511 | ||
db18dbab GM |
512 | /* Used to define a colon as an operand in tokens. */ |
513 | #define O_colon O_md31 | |
514 | ||
515 | /* Used to define address types in nps400. */ | |
516 | #define O_addrtype O_md30 | |
517 | ||
886a2506 NC |
518 | /* Dummy relocation, to be sorted out. */ |
519 | #define DUMMY_RELOC_ARC_ENTRY (BFD_RELOC_UNUSED + 1) | |
520 | ||
521 | #define USER_RELOC_P(R) ((R) >= O_gotoff && (R) <= O_last) | |
522 | ||
523 | /* A table to map the spelling of a relocation operand into an appropriate | |
524 | bfd_reloc_code_real_type type. The table is assumed to be ordered such | |
525 | that op-O_literal indexes into it. */ | |
526 | #define ARC_RELOC_TABLE(op) \ | |
527 | (&arc_reloc_op[ ((!USER_RELOC_P (op)) \ | |
528 | ? (abort (), 0) \ | |
529 | : (int) (op) - (int) O_gotoff) ]) | |
530 | ||
531 | #define DEF(NAME, RELOC, REQ) \ | |
532 | { #NAME, sizeof (#NAME)-1, O_##NAME, RELOC, REQ} | |
533 | ||
534 | static const struct arc_reloc_op_tag | |
535 | { | |
536 | /* String to lookup. */ | |
537 | const char *name; | |
538 | /* Size of the string. */ | |
539 | size_t length; | |
540 | /* Which operator to use. */ | |
541 | operatorT op; | |
542 | extended_bfd_reloc_code_real_type reloc; | |
543 | /* Allows complex relocation expression like identifier@reloc + | |
544 | const. */ | |
545 | unsigned int complex_expr : 1; | |
546 | } | |
547 | arc_reloc_op[] = | |
6f4b1afc CM |
548 | { |
549 | DEF (gotoff, BFD_RELOC_ARC_GOTOFF, 1), | |
550 | DEF (gotpc, BFD_RELOC_ARC_GOTPC32, 0), | |
551 | DEF (plt, BFD_RELOC_ARC_PLT32, 0), | |
552 | DEF (sda, DUMMY_RELOC_ARC_ENTRY, 1), | |
553 | DEF (pcl, BFD_RELOC_ARC_PC32, 1), | |
554 | DEF (tlsgd, BFD_RELOC_ARC_TLS_GD_GOT, 0), | |
555 | DEF (tlsie, BFD_RELOC_ARC_TLS_IE_GOT, 0), | |
556 | DEF (tpoff9, BFD_RELOC_ARC_TLS_LE_S9, 0), | |
b125bd17 | 557 | DEF (tpoff, BFD_RELOC_ARC_TLS_LE_32, 1), |
6f4b1afc | 558 | DEF (dtpoff9, BFD_RELOC_ARC_TLS_DTPOFF_S9, 0), |
05bbf016 | 559 | DEF (dtpoff, BFD_RELOC_ARC_TLS_DTPOFF, 1), |
6f4b1afc | 560 | }; |
252b5132 | 561 | |
886a2506 NC |
562 | static const int arc_num_reloc_op |
563 | = sizeof (arc_reloc_op) / sizeof (*arc_reloc_op); | |
564 | ||
4670103e CZ |
565 | /* Structure for relaxable instruction that have to be swapped with a |
566 | smaller alternative instruction. */ | |
567 | struct arc_relaxable_ins | |
568 | { | |
569 | /* Mnemonic that should be checked. */ | |
570 | const char *mnemonic_r; | |
571 | ||
572 | /* Operands that should be checked. | |
573 | Indexes of operands from operand array. */ | |
574 | enum rlx_operand_type operands[6]; | |
575 | ||
576 | /* Flags that should be checked. */ | |
577 | unsigned flag_classes[5]; | |
578 | ||
579 | /* Mnemonic (smaller) alternative to be used later for relaxation. */ | |
580 | const char *mnemonic_alt; | |
581 | ||
582 | /* Index of operand that generic relaxation has to check. */ | |
583 | unsigned opcheckidx; | |
584 | ||
585 | /* Base subtype index used. */ | |
586 | enum arc_rlx_types subtype; | |
587 | }; | |
588 | ||
589 | #define RELAX_TABLE_ENTRY(BITS, ISSIGNED, SIZE, NEXT) \ | |
590 | { (ISSIGNED) ? ((1 << ((BITS) - 1)) - 1) : ((1 << (BITS)) - 1), \ | |
591 | (ISSIGNED) ? -(1 << ((BITS) - 1)) : 0, \ | |
592 | (SIZE), \ | |
593 | (NEXT) } \ | |
594 | ||
595 | #define RELAX_TABLE_ENTRY_MAX(ISSIGNED, SIZE, NEXT) \ | |
596 | { (ISSIGNED) ? 0x7FFFFFFF : 0xFFFFFFFF, \ | |
597 | (ISSIGNED) ? -(0x7FFFFFFF) : 0, \ | |
598 | (SIZE), \ | |
599 | (NEXT) } \ | |
600 | ||
601 | ||
602 | /* ARC relaxation table. */ | |
603 | const relax_typeS md_relax_table[] = | |
604 | { | |
605 | /* Fake entry. */ | |
606 | {0, 0, 0, 0}, | |
607 | ||
608 | /* BL_S s13 -> | |
609 | BL s25. */ | |
db18dbab GM |
610 | RELAX_TABLE_ENTRY (13, 1, 2, ARC_RLX_BL), |
611 | RELAX_TABLE_ENTRY (25, 1, 4, ARC_RLX_NONE), | |
4670103e CZ |
612 | |
613 | /* B_S s10 -> | |
614 | B s25. */ | |
db18dbab GM |
615 | RELAX_TABLE_ENTRY (10, 1, 2, ARC_RLX_B), |
616 | RELAX_TABLE_ENTRY (25, 1, 4, ARC_RLX_NONE), | |
4670103e CZ |
617 | |
618 | /* ADD_S c,b, u3 -> | |
619 | ADD<.f> a,b,u6 -> | |
620 | ADD<.f> a,b,limm. */ | |
db18dbab GM |
621 | RELAX_TABLE_ENTRY (3, 0, 2, ARC_RLX_ADD_U6), |
622 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_ADD_LIMM), | |
623 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
624 | |
625 | /* LD_S a, [b, u7] -> | |
626 | LD<zz><.x><.aa><.di> a, [b, s9] -> | |
627 | LD<zz><.x><.aa><.di> a, [b, limm] */ | |
db18dbab GM |
628 | RELAX_TABLE_ENTRY (7, 0, 2, ARC_RLX_LD_S9), |
629 | RELAX_TABLE_ENTRY (9, 1, 4, ARC_RLX_LD_LIMM), | |
630 | RELAX_TABLE_ENTRY_MAX (1, 8, ARC_RLX_NONE), | |
4670103e CZ |
631 | |
632 | /* MOV_S b, u8 -> | |
633 | MOV<.f> b, s12 -> | |
634 | MOV<.f> b, limm. */ | |
db18dbab GM |
635 | RELAX_TABLE_ENTRY (8, 0, 2, ARC_RLX_MOV_S12), |
636 | RELAX_TABLE_ENTRY (8, 0, 4, ARC_RLX_MOV_LIMM), | |
637 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
638 | |
639 | /* SUB_S c, b, u3 -> | |
640 | SUB<.f> a, b, u6 -> | |
641 | SUB<.f> a, b, limm. */ | |
db18dbab GM |
642 | RELAX_TABLE_ENTRY (3, 0, 2, ARC_RLX_SUB_U6), |
643 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_SUB_LIMM), | |
644 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
645 | |
646 | /* MPY<.f> a, b, u6 -> | |
647 | MPY<.f> a, b, limm. */ | |
db18dbab GM |
648 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_MPY_LIMM), |
649 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
650 | |
651 | /* MOV<.f><.cc> b, u6 -> | |
652 | MOV<.f><.cc> b, limm. */ | |
db18dbab GM |
653 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_MOV_RLIMM), |
654 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
655 | |
656 | /* ADD<.f><.cc> b, b, u6 -> | |
657 | ADD<.f><.cc> b, b, limm. */ | |
db18dbab GM |
658 | RELAX_TABLE_ENTRY (6, 0, 4, ARC_RLX_ADD_RRLIMM), |
659 | RELAX_TABLE_ENTRY_MAX (0, 8, ARC_RLX_NONE), | |
4670103e CZ |
660 | }; |
661 | ||
662 | /* Order of this table's entries matters! */ | |
663 | const struct arc_relaxable_ins arc_relaxable_insns[] = | |
664 | { | |
665 | { "bl", { IMMEDIATE }, { 0 }, "bl_s", 0, ARC_RLX_BL_S }, | |
666 | { "b", { IMMEDIATE }, { 0 }, "b_s", 0, ARC_RLX_B_S }, | |
667 | { "add", { REGISTER, REGISTER_DUP, IMMEDIATE }, { 5, 1, 0 }, "add", | |
668 | 2, ARC_RLX_ADD_RRU6}, | |
669 | { "add", { REGISTER_S, REGISTER_S, IMMEDIATE }, { 0 }, "add_s", 2, | |
670 | ARC_RLX_ADD_U3 }, | |
671 | { "add", { REGISTER, REGISTER, IMMEDIATE }, { 5, 0 }, "add", 2, | |
672 | ARC_RLX_ADD_U6 }, | |
673 | { "ld", { REGISTER_S, BRACKET, REGISTER_S, IMMEDIATE, BRACKET }, | |
674 | { 0 }, "ld_s", 3, ARC_RLX_LD_U7 }, | |
675 | { "ld", { REGISTER, BRACKET, REGISTER_NO_GP, IMMEDIATE, BRACKET }, | |
676 | { 11, 4, 14, 17, 0 }, "ld", 3, ARC_RLX_LD_S9 }, | |
677 | { "mov", { REGISTER_S, IMMEDIATE }, { 0 }, "mov_s", 1, ARC_RLX_MOV_U8 }, | |
678 | { "mov", { REGISTER, IMMEDIATE }, { 5, 0 }, "mov", 1, ARC_RLX_MOV_S12 }, | |
679 | { "mov", { REGISTER, IMMEDIATE }, { 5, 1, 0 },"mov", 1, ARC_RLX_MOV_RU6 }, | |
680 | { "sub", { REGISTER_S, REGISTER_S, IMMEDIATE }, { 0 }, "sub_s", 2, | |
681 | ARC_RLX_SUB_U3 }, | |
682 | { "sub", { REGISTER, REGISTER, IMMEDIATE }, { 5, 0 }, "sub", 2, | |
683 | ARC_RLX_SUB_U6 }, | |
684 | { "mpy", { REGISTER, REGISTER, IMMEDIATE }, { 5, 0 }, "mpy", 2, | |
685 | ARC_RLX_MPY_U6 }, | |
686 | }; | |
687 | ||
688 | const unsigned arc_num_relaxable_ins = ARRAY_SIZE (arc_relaxable_insns); | |
689 | ||
886a2506 NC |
690 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
691 | symbolS * GOT_symbol = 0; | |
692 | ||
693 | /* Set to TRUE when we assemble instructions. */ | |
694 | static bfd_boolean assembling_insn = FALSE; | |
695 | ||
53a346d8 CZ |
696 | /* List with attributes set explicitly. */ |
697 | static bfd_boolean attributes_set_explicitly[NUM_KNOWN_OBJ_ATTRIBUTES]; | |
698 | ||
886a2506 NC |
699 | /* Functions implementation. */ |
700 | ||
b9b47ab7 AB |
701 | /* Return a pointer to ARC_OPCODE_HASH_ENTRY that identifies all |
702 | ARC_OPCODE entries in ARC_OPCODE_HASH that match NAME, or NULL if there | |
703 | are no matching entries in ARC_OPCODE_HASH. */ | |
da5be039 | 704 | |
b9b47ab7 | 705 | static const struct arc_opcode_hash_entry * |
da5be039 AB |
706 | arc_find_opcode (const char *name) |
707 | { | |
708 | const struct arc_opcode_hash_entry *entry; | |
da5be039 AB |
709 | |
710 | entry = hash_find (arc_opcode_hash, name); | |
b9b47ab7 | 711 | return entry; |
da5be039 AB |
712 | } |
713 | ||
1328504b AB |
714 | /* Initialise the iterator ITER. */ |
715 | ||
716 | static void | |
717 | arc_opcode_hash_entry_iterator_init (struct arc_opcode_hash_entry_iterator *iter) | |
718 | { | |
719 | iter->index = 0; | |
720 | iter->opcode = NULL; | |
721 | } | |
722 | ||
723 | /* Return the next ARC_OPCODE from ENTRY, using ITER to hold state between | |
724 | calls to this function. Return NULL when all ARC_OPCODE entries have | |
725 | been returned. */ | |
726 | ||
727 | static const struct arc_opcode * | |
728 | arc_opcode_hash_entry_iterator_next (const struct arc_opcode_hash_entry *entry, | |
729 | struct arc_opcode_hash_entry_iterator *iter) | |
730 | { | |
731 | if (iter->opcode == NULL && iter->index == 0) | |
732 | { | |
733 | gas_assert (entry->count > 0); | |
734 | iter->opcode = entry->opcode[iter->index]; | |
735 | } | |
736 | else if (iter->opcode != NULL) | |
737 | { | |
738 | const char *old_name = iter->opcode->name; | |
739 | ||
740 | iter->opcode++; | |
fe779266 AB |
741 | if (iter->opcode->name == NULL |
742 | || strcmp (old_name, iter->opcode->name) != 0) | |
1328504b AB |
743 | { |
744 | iter->index++; | |
745 | if (iter->index == entry->count) | |
746 | iter->opcode = NULL; | |
747 | else | |
748 | iter->opcode = entry->opcode[iter->index]; | |
749 | } | |
750 | } | |
751 | ||
752 | return iter->opcode; | |
753 | } | |
754 | ||
b99747ae CZ |
755 | /* Insert an opcode into opcode hash structure. */ |
756 | ||
757 | static void | |
758 | arc_insert_opcode (const struct arc_opcode *opcode) | |
759 | { | |
760 | const char *name, *retval; | |
761 | struct arc_opcode_hash_entry *entry; | |
762 | name = opcode->name; | |
763 | ||
764 | entry = hash_find (arc_opcode_hash, name); | |
765 | if (entry == NULL) | |
766 | { | |
add39d23 | 767 | entry = XNEW (struct arc_opcode_hash_entry); |
b99747ae CZ |
768 | entry->count = 0; |
769 | entry->opcode = NULL; | |
770 | ||
771 | retval = hash_insert (arc_opcode_hash, name, (void *) entry); | |
772 | if (retval) | |
773 | as_fatal (_("internal error: can't hash opcode '%s': %s"), | |
774 | name, retval); | |
775 | } | |
776 | ||
add39d23 TS |
777 | entry->opcode = XRESIZEVEC (const struct arc_opcode *, entry->opcode, |
778 | entry->count + 1); | |
b99747ae CZ |
779 | |
780 | if (entry->opcode == NULL) | |
781 | as_fatal (_("Virtual memory exhausted")); | |
782 | ||
783 | entry->opcode[entry->count] = opcode; | |
784 | entry->count++; | |
785 | } | |
786 | ||
787 | ||
bdfe53e3 AB |
788 | /* Like md_number_to_chars but for middle-endian values. The 4-byte limm |
789 | value, is encoded as 'middle-endian' for a little-endian target. This | |
790 | function is used for regular 4, 6, and 8 byte instructions as well. */ | |
886a2506 NC |
791 | |
792 | static void | |
bdfe53e3 | 793 | md_number_to_chars_midend (char *buf, unsigned long long val, int n) |
886a2506 | 794 | { |
bdfe53e3 | 795 | switch (n) |
886a2506 | 796 | { |
bdfe53e3 AB |
797 | case 2: |
798 | md_number_to_chars (buf, val, n); | |
799 | break; | |
800 | case 6: | |
53b6d6f5 | 801 | md_number_to_chars (buf, (val & 0xffff00000000ull) >> 32, 2); |
bdfe53e3 AB |
802 | md_number_to_chars_midend (buf + 2, (val & 0xffffffff), 4); |
803 | break; | |
804 | case 4: | |
886a2506 NC |
805 | md_number_to_chars (buf, (val & 0xffff0000) >> 16, 2); |
806 | md_number_to_chars (buf + 2, (val & 0xffff), 2); | |
bdfe53e3 AB |
807 | break; |
808 | case 8: | |
53b6d6f5 | 809 | md_number_to_chars_midend (buf, (val & 0xffffffff00000000ull) >> 32, 4); |
bdfe53e3 AB |
810 | md_number_to_chars_midend (buf + 4, (val & 0xffffffff), 4); |
811 | break; | |
812 | default: | |
813 | abort (); | |
886a2506 | 814 | } |
252b5132 RH |
815 | } |
816 | ||
bb050a69 CZ |
817 | /* Check if a feature is allowed for a specific CPU. */ |
818 | ||
819 | static void | |
820 | arc_check_feature (void) | |
821 | { | |
822 | unsigned i; | |
823 | ||
824 | if (!selected_cpu.features | |
825 | || !selected_cpu.name) | |
826 | return; | |
53a346d8 CZ |
827 | |
828 | for (i = 0; i < ARRAY_SIZE (feature_list); i++) | |
829 | if ((selected_cpu.features & feature_list[i].feature) | |
830 | && !(selected_cpu.flags & feature_list[i].cpus)) | |
831 | as_bad (_("invalid %s option for %s cpu"), feature_list[i].name, | |
832 | selected_cpu.name); | |
833 | ||
834 | for (i = 0; i < ARRAY_SIZE (conflict_list); i++) | |
835 | if ((selected_cpu.features & conflict_list[i]) == conflict_list[i]) | |
836 | as_bad(_("conflicting ISA extension attributes.")); | |
bb050a69 CZ |
837 | } |
838 | ||
24740d83 | 839 | /* Select an appropriate entry from CPU_TYPES based on ARG and initialise |
bb65a718 AB |
840 | the relevant static global variables. Parameter SEL describes where |
841 | this selection originated from. */ | |
24740d83 AB |
842 | |
843 | static void | |
bb65a718 | 844 | arc_select_cpu (const char *arg, enum mach_selection_type sel) |
24740d83 | 845 | { |
24740d83 AB |
846 | int i; |
847 | ||
bb65a718 AB |
848 | /* We should only set a default if we've not made a selection from some |
849 | other source. */ | |
850 | gas_assert (sel != MACH_SELECTION_FROM_DEFAULT | |
851 | || mach_selection_mode == MACH_SELECTION_NONE); | |
852 | ||
bb050a69 CZ |
853 | if ((mach_selection_mode == MACH_SELECTION_FROM_CPU_DIRECTIVE) |
854 | && (sel == MACH_SELECTION_FROM_CPU_DIRECTIVE)) | |
855 | as_bad (_("Multiple .cpu directives found")); | |
856 | ||
bb65a718 | 857 | /* Look for a matching entry in CPU_TYPES array. */ |
24740d83 AB |
858 | for (i = 0; cpu_types[i].name; ++i) |
859 | { | |
860 | if (!strcasecmp (cpu_types[i].name, arg)) | |
861 | { | |
bb65a718 AB |
862 | /* If a previous selection was made on the command line, then we |
863 | allow later selections on the command line to override earlier | |
864 | ones. However, a selection from a '.cpu NAME' directive must | |
865 | match the command line selection, or we give a warning. */ | |
866 | if (mach_selection_mode == MACH_SELECTION_FROM_COMMAND_LINE) | |
867 | { | |
868 | gas_assert (sel == MACH_SELECTION_FROM_COMMAND_LINE | |
869 | || sel == MACH_SELECTION_FROM_CPU_DIRECTIVE); | |
870 | if (sel == MACH_SELECTION_FROM_CPU_DIRECTIVE | |
871 | && selected_cpu.mach != cpu_types[i].mach) | |
872 | { | |
873 | as_warn (_("Command-line value overrides \".cpu\" directive")); | |
bb65a718 | 874 | } |
bb050a69 | 875 | return; |
bb65a718 AB |
876 | } |
877 | ||
bb050a69 CZ |
878 | /* Initialise static global data about selected machine type. */ |
879 | selected_cpu.flags = cpu_types[i].flags; | |
880 | selected_cpu.name = cpu_types[i].name; | |
a9752fdf | 881 | selected_cpu.features = cpu_types[i].features | cl_features; |
bb050a69 | 882 | selected_cpu.mach = cpu_types[i].mach; |
53a346d8 CZ |
883 | selected_cpu.eflags = ((selected_cpu.eflags & ~EF_ARC_MACH_MSK) |
884 | | cpu_types[i].eflags); | |
24740d83 AB |
885 | break; |
886 | } | |
887 | } | |
888 | ||
889 | if (!cpu_types[i].name) | |
890 | as_fatal (_("unknown architecture: %s\n"), arg); | |
bb050a69 CZ |
891 | |
892 | /* Check if set features are compatible with the chosen CPU. */ | |
893 | arc_check_feature (); | |
53a346d8 | 894 | |
bb65a718 | 895 | mach_selection_mode = sel; |
24740d83 AB |
896 | } |
897 | ||
886a2506 NC |
898 | /* Here ends all the ARCompact extension instruction assembling |
899 | stuff. */ | |
252b5132 | 900 | |
886a2506 NC |
901 | static void |
902 | arc_extra_reloc (int r_type) | |
ea1562b3 | 903 | { |
886a2506 NC |
904 | char *sym_name, c; |
905 | symbolS *sym, *lab = NULL; | |
906 | ||
907 | if (*input_line_pointer == '@') | |
908 | input_line_pointer++; | |
909 | c = get_symbol_name (&sym_name); | |
910 | sym = symbol_find_or_make (sym_name); | |
911 | restore_line_pointer (c); | |
912 | if (c == ',' && r_type == BFD_RELOC_ARC_TLS_GD_LD) | |
913 | { | |
914 | ++input_line_pointer; | |
915 | char *lab_name; | |
916 | c = get_symbol_name (&lab_name); | |
917 | lab = symbol_find_or_make (lab_name); | |
918 | restore_line_pointer (c); | |
919 | } | |
841fdfcd CZ |
920 | |
921 | /* These relocations exist as a mechanism for the compiler to tell the | |
922 | linker how to patch the code if the tls model is optimised. However, | |
923 | the relocation itself does not require any space within the assembler | |
924 | fragment, and so we pass a size of 0. | |
925 | ||
926 | The lines that generate these relocations look like this: | |
927 | ||
928 | .tls_gd_ld @.tdata`bl __tls_get_addr@plt | |
929 | ||
930 | The '.tls_gd_ld @.tdata' is processed first and generates the | |
931 | additional relocation, while the 'bl __tls_get_addr@plt' is processed | |
932 | second and generates the additional branch. | |
933 | ||
934 | It is possible that the additional relocation generated by the | |
935 | '.tls_gd_ld @.tdata' will be attached at the very end of one fragment, | |
936 | while the 'bl __tls_get_addr@plt' will be generated as the first thing | |
937 | in the next fragment. This will be fine; both relocations will still | |
938 | appear to be at the same address in the generated object file. | |
939 | However, this only works as the additional relocation is generated | |
940 | with size of 0 bytes. */ | |
886a2506 NC |
941 | fixS *fixP |
942 | = fix_new (frag_now, /* Which frag? */ | |
943 | frag_now_fix (), /* Where in that frag? */ | |
841fdfcd | 944 | 0, /* size: 1, 2, or 4 usually. */ |
886a2506 NC |
945 | sym, /* X_add_symbol. */ |
946 | 0, /* X_add_number. */ | |
947 | FALSE, /* TRUE if PC-relative relocation. */ | |
948 | r_type /* Relocation type. */); | |
949 | fixP->fx_subsy = lab; | |
950 | } | |
252b5132 | 951 | |
886a2506 NC |
952 | static symbolS * |
953 | arc_lcomm_internal (int ignore ATTRIBUTE_UNUSED, | |
954 | symbolS *symbolP, addressT size) | |
955 | { | |
956 | addressT align = 0; | |
957 | SKIP_WHITESPACE (); | |
252b5132 | 958 | |
886a2506 NC |
959 | if (*input_line_pointer == ',') |
960 | { | |
961 | align = parse_align (1); | |
252b5132 | 962 | |
886a2506 NC |
963 | if (align == (addressT) -1) |
964 | return NULL; | |
965 | } | |
966 | else | |
967 | { | |
968 | if (size >= 8) | |
969 | align = 3; | |
970 | else if (size >= 4) | |
971 | align = 2; | |
972 | else if (size >= 2) | |
973 | align = 1; | |
974 | else | |
975 | align = 0; | |
976 | } | |
252b5132 | 977 | |
886a2506 NC |
978 | bss_alloc (symbolP, size, align); |
979 | S_CLEAR_EXTERNAL (symbolP); | |
ea1562b3 | 980 | |
886a2506 NC |
981 | return symbolP; |
982 | } | |
ea1562b3 | 983 | |
886a2506 NC |
984 | static void |
985 | arc_lcomm (int ignore) | |
986 | { | |
987 | symbolS *symbolP = s_comm_internal (ignore, arc_lcomm_internal); | |
ea1562b3 | 988 | |
886a2506 NC |
989 | if (symbolP) |
990 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
991 | } | |
ea1562b3 | 992 | |
886a2506 | 993 | /* Select the cpu we're assembling for. */ |
ea1562b3 | 994 | |
886a2506 NC |
995 | static void |
996 | arc_option (int ignore ATTRIBUTE_UNUSED) | |
252b5132 | 997 | { |
886a2506 NC |
998 | char c; |
999 | char *cpu; | |
bb65a718 | 1000 | const char *cpu_name; |
252b5132 | 1001 | |
886a2506 | 1002 | c = get_symbol_name (&cpu); |
252b5132 | 1003 | |
a9752fdf | 1004 | cpu_name = cpu; |
bb65a718 AB |
1005 | if ((!strcmp ("ARC600", cpu)) |
1006 | || (!strcmp ("ARC601", cpu)) | |
1007 | || (!strcmp ("A6", cpu))) | |
1008 | cpu_name = "arc600"; | |
1009 | else if ((!strcmp ("ARC700", cpu)) | |
1010 | || (!strcmp ("A7", cpu))) | |
1011 | cpu_name = "arc700"; | |
1012 | else if (!strcmp ("EM", cpu)) | |
1013 | cpu_name = "arcem"; | |
1014 | else if (!strcmp ("HS", cpu)) | |
1015 | cpu_name = "archs"; | |
1016 | else if (!strcmp ("NPS400", cpu)) | |
1017 | cpu_name = "nps400"; | |
886a2506 | 1018 | |
a9752fdf | 1019 | arc_select_cpu (cpu_name, MACH_SELECTION_FROM_CPU_DIRECTIVE); |
24b368f8 | 1020 | |
24b368f8 | 1021 | restore_line_pointer (c); |
886a2506 | 1022 | demand_empty_rest_of_line (); |
ea1562b3 | 1023 | } |
252b5132 | 1024 | |
886a2506 NC |
1025 | /* Smartly print an expression. */ |
1026 | ||
ea1562b3 | 1027 | static void |
886a2506 | 1028 | debug_exp (expressionS *t) |
ea1562b3 | 1029 | { |
886a2506 NC |
1030 | const char *name ATTRIBUTE_UNUSED; |
1031 | const char *namemd ATTRIBUTE_UNUSED; | |
252b5132 | 1032 | |
886a2506 | 1033 | pr_debug ("debug_exp: "); |
252b5132 | 1034 | |
886a2506 | 1035 | switch (t->X_op) |
252b5132 | 1036 | { |
886a2506 NC |
1037 | default: name = "unknown"; break; |
1038 | case O_illegal: name = "O_illegal"; break; | |
1039 | case O_absent: name = "O_absent"; break; | |
1040 | case O_constant: name = "O_constant"; break; | |
1041 | case O_symbol: name = "O_symbol"; break; | |
1042 | case O_symbol_rva: name = "O_symbol_rva"; break; | |
1043 | case O_register: name = "O_register"; break; | |
1044 | case O_big: name = "O_big"; break; | |
1045 | case O_uminus: name = "O_uminus"; break; | |
1046 | case O_bit_not: name = "O_bit_not"; break; | |
1047 | case O_logical_not: name = "O_logical_not"; break; | |
1048 | case O_multiply: name = "O_multiply"; break; | |
1049 | case O_divide: name = "O_divide"; break; | |
1050 | case O_modulus: name = "O_modulus"; break; | |
1051 | case O_left_shift: name = "O_left_shift"; break; | |
1052 | case O_right_shift: name = "O_right_shift"; break; | |
1053 | case O_bit_inclusive_or: name = "O_bit_inclusive_or"; break; | |
1054 | case O_bit_or_not: name = "O_bit_or_not"; break; | |
1055 | case O_bit_exclusive_or: name = "O_bit_exclusive_or"; break; | |
1056 | case O_bit_and: name = "O_bit_and"; break; | |
1057 | case O_add: name = "O_add"; break; | |
1058 | case O_subtract: name = "O_subtract"; break; | |
1059 | case O_eq: name = "O_eq"; break; | |
1060 | case O_ne: name = "O_ne"; break; | |
1061 | case O_lt: name = "O_lt"; break; | |
1062 | case O_le: name = "O_le"; break; | |
1063 | case O_ge: name = "O_ge"; break; | |
1064 | case O_gt: name = "O_gt"; break; | |
1065 | case O_logical_and: name = "O_logical_and"; break; | |
1066 | case O_logical_or: name = "O_logical_or"; break; | |
1067 | case O_index: name = "O_index"; break; | |
1068 | case O_bracket: name = "O_bracket"; break; | |
db18dbab GM |
1069 | case O_colon: name = "O_colon"; break; |
1070 | case O_addrtype: name = "O_addrtype"; break; | |
ea1562b3 | 1071 | } |
252b5132 | 1072 | |
886a2506 | 1073 | switch (t->X_md) |
ea1562b3 | 1074 | { |
886a2506 NC |
1075 | default: namemd = "unknown"; break; |
1076 | case O_gotoff: namemd = "O_gotoff"; break; | |
1077 | case O_gotpc: namemd = "O_gotpc"; break; | |
1078 | case O_plt: namemd = "O_plt"; break; | |
1079 | case O_sda: namemd = "O_sda"; break; | |
1080 | case O_pcl: namemd = "O_pcl"; break; | |
1081 | case O_tlsgd: namemd = "O_tlsgd"; break; | |
1082 | case O_tlsie: namemd = "O_tlsie"; break; | |
1083 | case O_tpoff9: namemd = "O_tpoff9"; break; | |
1084 | case O_tpoff: namemd = "O_tpoff"; break; | |
1085 | case O_dtpoff9: namemd = "O_dtpoff9"; break; | |
1086 | case O_dtpoff: namemd = "O_dtpoff"; break; | |
ea1562b3 | 1087 | } |
252b5132 | 1088 | |
886a2506 NC |
1089 | pr_debug ("%s (%s, %s, %d, %s)", name, |
1090 | (t->X_add_symbol) ? S_GET_NAME (t->X_add_symbol) : "--", | |
1091 | (t->X_op_symbol) ? S_GET_NAME (t->X_op_symbol) : "--", | |
1092 | (int) t->X_add_number, | |
1093 | (t->X_md) ? namemd : "--"); | |
1094 | pr_debug ("\n"); | |
1095 | fflush (stderr); | |
1096 | } | |
252b5132 | 1097 | |
886a2506 NC |
1098 | /* Parse the arguments to an opcode. */ |
1099 | ||
1100 | static int | |
1101 | tokenize_arguments (char *str, | |
1102 | expressionS *tok, | |
1103 | int ntok) | |
1104 | { | |
1105 | char *old_input_line_pointer; | |
1106 | bfd_boolean saw_comma = FALSE; | |
1107 | bfd_boolean saw_arg = FALSE; | |
1108 | int brk_lvl = 0; | |
1109 | int num_args = 0; | |
886a2506 NC |
1110 | int i; |
1111 | size_t len; | |
1112 | const struct arc_reloc_op_tag *r; | |
1113 | expressionS tmpE; | |
6f4b1afc | 1114 | char *reloc_name, c; |
886a2506 NC |
1115 | |
1116 | memset (tok, 0, sizeof (*tok) * ntok); | |
1117 | ||
1118 | /* Save and restore input_line_pointer around this function. */ | |
1119 | old_input_line_pointer = input_line_pointer; | |
1120 | input_line_pointer = str; | |
ea1562b3 | 1121 | |
886a2506 | 1122 | while (*input_line_pointer) |
ea1562b3 NC |
1123 | { |
1124 | SKIP_WHITESPACE (); | |
886a2506 | 1125 | switch (*input_line_pointer) |
252b5132 | 1126 | { |
886a2506 NC |
1127 | case '\0': |
1128 | goto fini; | |
1129 | ||
1130 | case ',': | |
1131 | input_line_pointer++; | |
1132 | if (saw_comma || !saw_arg) | |
1133 | goto err; | |
1134 | saw_comma = TRUE; | |
1135 | break; | |
252b5132 | 1136 | |
886a2506 NC |
1137 | case '}': |
1138 | case ']': | |
1139 | ++input_line_pointer; | |
1140 | --brk_lvl; | |
3b889a78 | 1141 | if (!saw_arg || num_args == ntok) |
886a2506 NC |
1142 | goto err; |
1143 | tok->X_op = O_bracket; | |
1144 | ++tok; | |
1145 | ++num_args; | |
1146 | break; | |
ea1562b3 | 1147 | |
886a2506 NC |
1148 | case '{': |
1149 | case '[': | |
1150 | input_line_pointer++; | |
3b889a78 | 1151 | if (brk_lvl || num_args == ntok) |
886a2506 NC |
1152 | goto err; |
1153 | ++brk_lvl; | |
1154 | tok->X_op = O_bracket; | |
1155 | ++tok; | |
1156 | ++num_args; | |
1157 | break; | |
1158 | ||
db18dbab GM |
1159 | case ':': |
1160 | input_line_pointer++; | |
1161 | if (!saw_arg || num_args == ntok) | |
1162 | goto err; | |
1163 | tok->X_op = O_colon; | |
1164 | saw_arg = FALSE; | |
1165 | ++tok; | |
1166 | ++num_args; | |
1167 | break; | |
1168 | ||
886a2506 NC |
1169 | case '@': |
1170 | /* We have labels, function names and relocations, all | |
1171 | starting with @ symbol. Sort them out. */ | |
3b889a78 | 1172 | if ((saw_arg && !saw_comma) || num_args == ntok) |
886a2506 NC |
1173 | goto err; |
1174 | ||
1175 | /* Parse @label. */ | |
1176 | tok->X_op = O_symbol; | |
1177 | tok->X_md = O_absent; | |
1178 | expression (tok); | |
1179 | if (*input_line_pointer != '@') | |
1180 | goto normalsymbol; /* This is not a relocation. */ | |
1181 | ||
6f4b1afc CM |
1182 | relocationsym: |
1183 | ||
33eaf5de | 1184 | /* A relocation operand has the following form |
886a2506 NC |
1185 | @identifier@relocation_type. The identifier is already |
1186 | in tok! */ | |
1187 | if (tok->X_op != O_symbol) | |
ea1562b3 | 1188 | { |
886a2506 NC |
1189 | as_bad (_("No valid label relocation operand")); |
1190 | goto err; | |
252b5132 | 1191 | } |
886a2506 NC |
1192 | |
1193 | /* Parse @relocation_type. */ | |
6f4b1afc CM |
1194 | input_line_pointer++; |
1195 | c = get_symbol_name (&reloc_name); | |
1196 | len = input_line_pointer - reloc_name; | |
1197 | if (len == 0) | |
252b5132 | 1198 | { |
886a2506 NC |
1199 | as_bad (_("No relocation operand")); |
1200 | goto err; | |
252b5132 | 1201 | } |
252b5132 | 1202 | |
886a2506 NC |
1203 | /* Go through known relocation and try to find a match. */ |
1204 | r = &arc_reloc_op[0]; | |
1205 | for (i = arc_num_reloc_op - 1; i >= 0; i--, r++) | |
6f4b1afc CM |
1206 | if (len == r->length |
1207 | && memcmp (reloc_name, r->name, len) == 0) | |
886a2506 | 1208 | break; |
886a2506 | 1209 | if (i < 0) |
252b5132 | 1210 | { |
6f4b1afc | 1211 | as_bad (_("Unknown relocation operand: @%s"), reloc_name); |
886a2506 NC |
1212 | goto err; |
1213 | } | |
1214 | ||
6f4b1afc CM |
1215 | *input_line_pointer = c; |
1216 | SKIP_WHITESPACE_AFTER_NAME (); | |
886a2506 NC |
1217 | /* Extra check for TLS: base. */ |
1218 | if (*input_line_pointer == '@') | |
1219 | { | |
1220 | symbolS *base; | |
1221 | if (tok->X_op_symbol != NULL | |
1222 | || tok->X_op != O_symbol) | |
252b5132 | 1223 | { |
6f4b1afc CM |
1224 | as_bad (_("Unable to parse TLS base: %s"), |
1225 | input_line_pointer); | |
886a2506 | 1226 | goto err; |
252b5132 | 1227 | } |
886a2506 NC |
1228 | input_line_pointer++; |
1229 | char *sym_name; | |
6f4b1afc | 1230 | c = get_symbol_name (&sym_name); |
886a2506 NC |
1231 | base = symbol_find_or_make (sym_name); |
1232 | tok->X_op = O_subtract; | |
1233 | tok->X_op_symbol = base; | |
1234 | restore_line_pointer (c); | |
6f4b1afc CM |
1235 | tmpE.X_add_number = 0; |
1236 | } | |
32348c58 | 1237 | if ((*input_line_pointer != '+') |
6f4b1afc CM |
1238 | && (*input_line_pointer != '-')) |
1239 | { | |
1240 | tmpE.X_add_number = 0; | |
ea1562b3 | 1241 | } |
6f4b1afc CM |
1242 | else |
1243 | { | |
1244 | /* Parse the constant of a complex relocation expression | |
1245 | like @identifier@reloc +/- const. */ | |
1246 | if (! r->complex_expr) | |
1247 | { | |
1248 | as_bad (_("@%s is not a complex relocation."), r->name); | |
1249 | goto err; | |
1250 | } | |
1251 | expression (&tmpE); | |
1252 | if (tmpE.X_op != O_constant) | |
1253 | { | |
1254 | as_bad (_("Bad expression: @%s + %s."), | |
1255 | r->name, input_line_pointer); | |
1256 | goto err; | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | tok->X_md = r->op; | |
1261 | tok->X_add_number = tmpE.X_add_number; | |
1e07b820 | 1262 | |
886a2506 | 1263 | debug_exp (tok); |
ea1562b3 | 1264 | |
886a2506 NC |
1265 | saw_comma = FALSE; |
1266 | saw_arg = TRUE; | |
1267 | tok++; | |
1268 | num_args++; | |
1269 | break; | |
252b5132 | 1270 | |
886a2506 NC |
1271 | case '%': |
1272 | /* Can be a register. */ | |
1273 | ++input_line_pointer; | |
1274 | /* Fall through. */ | |
1275 | default: | |
252b5132 | 1276 | |
3b889a78 | 1277 | if ((saw_arg && !saw_comma) || num_args == ntok) |
886a2506 | 1278 | goto err; |
252b5132 | 1279 | |
886a2506 | 1280 | tok->X_op = O_absent; |
6f4b1afc | 1281 | tok->X_md = O_absent; |
886a2506 | 1282 | expression (tok); |
252b5132 | 1283 | |
6f4b1afc CM |
1284 | /* Legacy: There are cases when we have |
1285 | identifier@relocation_type, if it is the case parse the | |
1286 | relocation type as well. */ | |
1287 | if (*input_line_pointer == '@') | |
1288 | goto relocationsym; | |
1289 | ||
886a2506 NC |
1290 | normalsymbol: |
1291 | debug_exp (tok); | |
252b5132 | 1292 | |
3b889a78 AB |
1293 | if (tok->X_op == O_illegal |
1294 | || tok->X_op == O_absent | |
1295 | || num_args == ntok) | |
886a2506 | 1296 | goto err; |
252b5132 | 1297 | |
886a2506 NC |
1298 | saw_comma = FALSE; |
1299 | saw_arg = TRUE; | |
1300 | tok++; | |
1301 | num_args++; | |
1302 | break; | |
1303 | } | |
ea1562b3 | 1304 | } |
252b5132 | 1305 | |
886a2506 NC |
1306 | fini: |
1307 | if (saw_comma || brk_lvl) | |
1308 | goto err; | |
1309 | input_line_pointer = old_input_line_pointer; | |
252b5132 | 1310 | |
886a2506 | 1311 | return num_args; |
252b5132 | 1312 | |
886a2506 NC |
1313 | err: |
1314 | if (brk_lvl) | |
1315 | as_bad (_("Brackets in operand field incorrect")); | |
1316 | else if (saw_comma) | |
1317 | as_bad (_("extra comma")); | |
1318 | else if (!saw_arg) | |
1319 | as_bad (_("missing argument")); | |
1320 | else | |
1321 | as_bad (_("missing comma or colon")); | |
1322 | input_line_pointer = old_input_line_pointer; | |
1323 | return -1; | |
252b5132 | 1324 | } |
ea1562b3 | 1325 | |
886a2506 NC |
1326 | /* Parse the flags to a structure. */ |
1327 | ||
1328 | static int | |
1329 | tokenize_flags (const char *str, | |
1330 | struct arc_flags flags[], | |
1331 | int nflg) | |
252b5132 | 1332 | { |
886a2506 NC |
1333 | char *old_input_line_pointer; |
1334 | bfd_boolean saw_flg = FALSE; | |
1335 | bfd_boolean saw_dot = FALSE; | |
1336 | int num_flags = 0; | |
1337 | size_t flgnamelen; | |
252b5132 | 1338 | |
886a2506 | 1339 | memset (flags, 0, sizeof (*flags) * nflg); |
0d2bcfaf | 1340 | |
886a2506 NC |
1341 | /* Save and restore input_line_pointer around this function. */ |
1342 | old_input_line_pointer = input_line_pointer; | |
1343 | input_line_pointer = (char *) str; | |
0d2bcfaf | 1344 | |
886a2506 NC |
1345 | while (*input_line_pointer) |
1346 | { | |
1347 | switch (*input_line_pointer) | |
1348 | { | |
1349 | case ' ': | |
1350 | case '\0': | |
1351 | goto fini; | |
1352 | ||
1353 | case '.': | |
1354 | input_line_pointer++; | |
1355 | if (saw_dot) | |
1356 | goto err; | |
1357 | saw_dot = TRUE; | |
1358 | saw_flg = FALSE; | |
1359 | break; | |
ea1562b3 | 1360 | |
886a2506 NC |
1361 | default: |
1362 | if (saw_flg && !saw_dot) | |
1363 | goto err; | |
0d2bcfaf | 1364 | |
886a2506 NC |
1365 | if (num_flags >= nflg) |
1366 | goto err; | |
0d2bcfaf | 1367 | |
692166c2 AB |
1368 | flgnamelen = strspn (input_line_pointer, |
1369 | "abcdefghijklmnopqrstuvwxyz0123456789"); | |
83cda17b | 1370 | if (flgnamelen > MAX_FLAG_NAME_LENGTH) |
886a2506 | 1371 | goto err; |
0d2bcfaf | 1372 | |
886a2506 | 1373 | memcpy (flags->name, input_line_pointer, flgnamelen); |
0d2bcfaf | 1374 | |
886a2506 NC |
1375 | input_line_pointer += flgnamelen; |
1376 | flags++; | |
1377 | saw_dot = FALSE; | |
1378 | saw_flg = TRUE; | |
1379 | num_flags++; | |
1380 | break; | |
1e07b820 | 1381 | } |
0d2bcfaf NC |
1382 | } |
1383 | ||
886a2506 NC |
1384 | fini: |
1385 | input_line_pointer = old_input_line_pointer; | |
1386 | return num_flags; | |
0d2bcfaf | 1387 | |
886a2506 NC |
1388 | err: |
1389 | if (saw_dot) | |
1390 | as_bad (_("extra dot")); | |
1391 | else if (!saw_flg) | |
1392 | as_bad (_("unrecognized flag")); | |
1393 | else | |
1394 | as_bad (_("failed to parse flags")); | |
1395 | input_line_pointer = old_input_line_pointer; | |
1396 | return -1; | |
1397 | } | |
0d2bcfaf | 1398 | |
4670103e | 1399 | /* Apply the fixups in order. */ |
0d2bcfaf | 1400 | |
4670103e CZ |
1401 | static void |
1402 | apply_fixups (struct arc_insn *insn, fragS *fragP, int fix) | |
886a2506 | 1403 | { |
4670103e | 1404 | int i; |
0d2bcfaf | 1405 | |
4670103e | 1406 | for (i = 0; i < insn->nfixups; i++) |
252b5132 | 1407 | { |
4670103e CZ |
1408 | struct arc_fixup *fixup = &insn->fixups[i]; |
1409 | int size, pcrel, offset = 0; | |
0d2bcfaf | 1410 | |
4670103e CZ |
1411 | /* FIXME! the reloc size is wrong in the BFD file. |
1412 | When it is fixed please delete me. */ | |
91fdca6f | 1413 | size = ((insn->len == 2) && !fixup->islong) ? 2 : 4; |
0d2bcfaf | 1414 | |
4670103e | 1415 | if (fixup->islong) |
91fdca6f | 1416 | offset = insn->len; |
252b5132 | 1417 | |
4670103e CZ |
1418 | /* Some fixups are only used internally, thus no howto. */ |
1419 | if ((int) fixup->reloc == 0) | |
1420 | as_fatal (_("Unhandled reloc type")); | |
886a2506 | 1421 | |
4670103e CZ |
1422 | if ((int) fixup->reloc < 0) |
1423 | { | |
1424 | /* FIXME! the reloc size is wrong in the BFD file. | |
1425 | When it is fixed please enable me. | |
91fdca6f | 1426 | size = ((insn->len == 2 && !fixup->islong) ? 2 : 4; */ |
4670103e CZ |
1427 | pcrel = fixup->pcrel; |
1428 | } | |
1429 | else | |
1430 | { | |
1431 | reloc_howto_type *reloc_howto = | |
1432 | bfd_reloc_type_lookup (stdoutput, | |
1433 | (bfd_reloc_code_real_type) fixup->reloc); | |
1434 | gas_assert (reloc_howto); | |
0d2bcfaf | 1435 | |
4670103e CZ |
1436 | /* FIXME! the reloc size is wrong in the BFD file. |
1437 | When it is fixed please enable me. | |
1438 | size = bfd_get_reloc_size (reloc_howto); */ | |
1439 | pcrel = reloc_howto->pc_relative; | |
1440 | } | |
0d2bcfaf | 1441 | |
4670103e CZ |
1442 | pr_debug ("%s:%d: apply_fixups: new %s fixup (PCrel:%s) of size %d @ \ |
1443 | offset %d + %d\n", | |
1444 | fragP->fr_file, fragP->fr_line, | |
1445 | (fixup->reloc < 0) ? "Internal" : | |
1446 | bfd_get_reloc_code_name (fixup->reloc), | |
1447 | pcrel ? "Y" : "N", | |
1448 | size, fix, offset); | |
1449 | fix_new_exp (fragP, fix + offset, | |
1450 | size, &fixup->exp, pcrel, fixup->reloc); | |
0d2bcfaf | 1451 | |
4670103e CZ |
1452 | /* Check for ZOLs, and update symbol info if any. */ |
1453 | if (LP_INSN (insn->insn)) | |
886a2506 | 1454 | { |
4670103e CZ |
1455 | gas_assert (fixup->exp.X_add_symbol); |
1456 | ARC_SET_FLAG (fixup->exp.X_add_symbol, ARC_FLAG_ZOL); | |
886a2506 NC |
1457 | } |
1458 | } | |
252b5132 RH |
1459 | } |
1460 | ||
4670103e | 1461 | /* Actually output an instruction with its fixup. */ |
886a2506 | 1462 | |
4670103e CZ |
1463 | static void |
1464 | emit_insn0 (struct arc_insn *insn, char *where, bfd_boolean relax) | |
252b5132 | 1465 | { |
4670103e | 1466 | char *f = where; |
91fdca6f | 1467 | size_t total_len; |
252b5132 | 1468 | |
bdfe53e3 AB |
1469 | pr_debug ("Emit insn : 0x%llx\n", insn->insn); |
1470 | pr_debug ("\tLength : 0x%d\n", insn->len); | |
4670103e | 1471 | pr_debug ("\tLong imm: 0x%lx\n", insn->limm); |
0d2bcfaf | 1472 | |
4670103e | 1473 | /* Write out the instruction. */ |
91fdca6f GM |
1474 | total_len = insn->len + (insn->has_limm ? 4 : 0); |
1475 | if (!relax) | |
1476 | f = frag_more (total_len); | |
1477 | ||
1478 | md_number_to_chars_midend(f, insn->insn, insn->len); | |
1479 | ||
1480 | if (insn->has_limm) | |
1481 | md_number_to_chars_midend (f + insn->len, insn->limm, 4); | |
1482 | dwarf2_emit_insn (total_len); | |
252b5132 | 1483 | |
4670103e CZ |
1484 | if (!relax) |
1485 | apply_fixups (insn, frag_now, (f - frag_now->fr_literal)); | |
1486 | } | |
252b5132 | 1487 | |
4670103e CZ |
1488 | static void |
1489 | emit_insn1 (struct arc_insn *insn) | |
1490 | { | |
1491 | /* How frag_var's args are currently configured: | |
1492 | - rs_machine_dependent, to dictate it's a relaxation frag. | |
1493 | - FRAG_MAX_GROWTH, maximum size of instruction | |
1494 | - 0, variable size that might grow...unused by generic relaxation. | |
1495 | - frag_now->fr_subtype, fr_subtype starting value, set previously. | |
1496 | - s, opand expression. | |
1497 | - 0, offset but it's unused. | |
1498 | - 0, opcode but it's unused. */ | |
1499 | symbolS *s = make_expr_symbol (&insn->fixups[0].exp); | |
1500 | frag_now->tc_frag_data.pcrel = insn->fixups[0].pcrel; | |
1501 | ||
1502 | if (frag_room () < FRAG_MAX_GROWTH) | |
1503 | { | |
1504 | /* Handle differently when frag literal memory is exhausted. | |
1505 | This is used because when there's not enough memory left in | |
1506 | the current frag, a new frag is created and the information | |
1507 | we put into frag_now->tc_frag_data is disregarded. */ | |
252b5132 | 1508 | |
4670103e CZ |
1509 | struct arc_relax_type relax_info_copy; |
1510 | relax_substateT subtype = frag_now->fr_subtype; | |
252b5132 | 1511 | |
4670103e CZ |
1512 | memcpy (&relax_info_copy, &frag_now->tc_frag_data, |
1513 | sizeof (struct arc_relax_type)); | |
0d2bcfaf | 1514 | |
4670103e CZ |
1515 | frag_wane (frag_now); |
1516 | frag_grow (FRAG_MAX_GROWTH); | |
0d2bcfaf | 1517 | |
4670103e CZ |
1518 | memcpy (&frag_now->tc_frag_data, &relax_info_copy, |
1519 | sizeof (struct arc_relax_type)); | |
252b5132 | 1520 | |
4670103e CZ |
1521 | frag_var (rs_machine_dependent, FRAG_MAX_GROWTH, 0, |
1522 | subtype, s, 0, 0); | |
1523 | } | |
1524 | else | |
1525 | frag_var (rs_machine_dependent, FRAG_MAX_GROWTH, 0, | |
1526 | frag_now->fr_subtype, s, 0, 0); | |
1527 | } | |
252b5132 | 1528 | |
4670103e CZ |
1529 | static void |
1530 | emit_insn (struct arc_insn *insn) | |
252b5132 | 1531 | { |
4670103e CZ |
1532 | if (insn->relax) |
1533 | emit_insn1 (insn); | |
252b5132 | 1534 | else |
4670103e | 1535 | emit_insn0 (insn, NULL, FALSE); |
252b5132 RH |
1536 | } |
1537 | ||
4670103e | 1538 | /* Check whether a symbol involves a register. */ |
252b5132 | 1539 | |
4670103e CZ |
1540 | static bfd_boolean |
1541 | contains_register (symbolS *sym) | |
252b5132 | 1542 | { |
4670103e CZ |
1543 | if (sym) |
1544 | { | |
1545 | expressionS *ex = symbol_get_value_expression (sym); | |
252b5132 | 1546 | |
4670103e CZ |
1547 | return ((O_register == ex->X_op) |
1548 | && !contains_register (ex->X_add_symbol) | |
1549 | && !contains_register (ex->X_op_symbol)); | |
1550 | } | |
1551 | ||
1552 | return FALSE; | |
252b5132 RH |
1553 | } |
1554 | ||
4670103e | 1555 | /* Returns the register number within a symbol. */ |
252b5132 | 1556 | |
4670103e CZ |
1557 | static int |
1558 | get_register (symbolS *sym) | |
252b5132 | 1559 | { |
4670103e CZ |
1560 | if (!contains_register (sym)) |
1561 | return -1; | |
0d2bcfaf | 1562 | |
4670103e CZ |
1563 | expressionS *ex = symbol_get_value_expression (sym); |
1564 | return regno (ex->X_add_number); | |
1565 | } | |
252b5132 | 1566 | |
4670103e CZ |
1567 | /* Return true if a RELOC is generic. A generic reloc is PC-rel of a |
1568 | simple ME relocation (e.g. RELOC_ARC_32_ME, BFD_RELOC_ARC_PC32. */ | |
f17c130b | 1569 | |
4670103e CZ |
1570 | static bfd_boolean |
1571 | generic_reloc_p (extended_bfd_reloc_code_real_type reloc) | |
1572 | { | |
1573 | if (!reloc) | |
1574 | return FALSE; | |
886a2506 | 1575 | |
4670103e CZ |
1576 | switch (reloc) |
1577 | { | |
1578 | case BFD_RELOC_ARC_SDA_LDST: | |
1579 | case BFD_RELOC_ARC_SDA_LDST1: | |
1580 | case BFD_RELOC_ARC_SDA_LDST2: | |
1581 | case BFD_RELOC_ARC_SDA16_LD: | |
1582 | case BFD_RELOC_ARC_SDA16_LD1: | |
1583 | case BFD_RELOC_ARC_SDA16_LD2: | |
1584 | case BFD_RELOC_ARC_SDA16_ST2: | |
1585 | case BFD_RELOC_ARC_SDA32_ME: | |
1586 | return FALSE; | |
1587 | default: | |
1588 | return TRUE; | |
f17c130b | 1589 | } |
252b5132 RH |
1590 | } |
1591 | ||
4670103e | 1592 | /* Allocates a tok entry. */ |
252b5132 | 1593 | |
4670103e CZ |
1594 | static int |
1595 | allocate_tok (expressionS *tok, int ntok, int cidx) | |
252b5132 | 1596 | { |
4670103e CZ |
1597 | if (ntok > MAX_INSN_ARGS - 2) |
1598 | return 0; /* No space left. */ | |
252b5132 | 1599 | |
4670103e | 1600 | if (cidx > ntok) |
33eaf5de | 1601 | return 0; /* Incorrect args. */ |
252b5132 | 1602 | |
4670103e | 1603 | memcpy (&tok[ntok+1], &tok[ntok], sizeof (*tok)); |
252b5132 | 1604 | |
4670103e CZ |
1605 | if (cidx == ntok) |
1606 | return 1; /* Success. */ | |
1607 | return allocate_tok (tok, ntok - 1, cidx); | |
1608 | } | |
886a2506 | 1609 | |
8ddf6b2a CZ |
1610 | /* Check if an particular ARC feature is enabled. */ |
1611 | ||
1612 | static bfd_boolean | |
1613 | check_cpu_feature (insn_subclass_t sc) | |
1614 | { | |
53a346d8 | 1615 | if (is_code_density_p (sc) && !(selected_cpu.features & CD)) |
8ddf6b2a CZ |
1616 | return FALSE; |
1617 | ||
53a346d8 | 1618 | if (is_spfp_p (sc) && !(selected_cpu.features & SPX)) |
8ddf6b2a CZ |
1619 | return FALSE; |
1620 | ||
53a346d8 | 1621 | if (is_dpfp_p (sc) && !(selected_cpu.features & DPX)) |
8ddf6b2a CZ |
1622 | return FALSE; |
1623 | ||
53a346d8 | 1624 | if (is_fpuda_p (sc) && !(selected_cpu.features & DPA)) |
bdd582db GM |
1625 | return FALSE; |
1626 | ||
53a346d8 | 1627 | if (is_nps400_p (sc) && !(selected_cpu.features & NPS400)) |
8ddf6b2a CZ |
1628 | return FALSE; |
1629 | ||
1630 | return TRUE; | |
1631 | } | |
1632 | ||
4eb6f892 AB |
1633 | /* Parse the flags described by FIRST_PFLAG and NFLGS against the flag |
1634 | operands in OPCODE. Stores the matching OPCODES into the FIRST_PFLAG | |
1635 | array and returns TRUE if the flag operands all match, otherwise, | |
1636 | returns FALSE, in which case the FIRST_PFLAG array may have been | |
1637 | modified. */ | |
1638 | ||
1639 | static bfd_boolean | |
1640 | parse_opcode_flags (const struct arc_opcode *opcode, | |
1641 | int nflgs, | |
1642 | struct arc_flags *first_pflag) | |
1643 | { | |
1644 | int lnflg, i; | |
1645 | const unsigned char *flgidx; | |
1646 | ||
1647 | lnflg = nflgs; | |
1648 | for (i = 0; i < nflgs; i++) | |
1649 | first_pflag[i].flgp = NULL; | |
1650 | ||
1651 | /* Check the flags. Iterate over the valid flag classes. */ | |
1652 | for (flgidx = opcode->flags; *flgidx; ++flgidx) | |
1653 | { | |
1654 | /* Get a valid flag class. */ | |
1655 | const struct arc_flag_class *cl_flags = &arc_flag_classes[*flgidx]; | |
1656 | const unsigned *flgopridx; | |
1657 | int cl_matches = 0; | |
1658 | struct arc_flags *pflag = NULL; | |
1659 | ||
6ec7c1ae CZ |
1660 | /* Check if opcode has implicit flag classes. */ |
1661 | if (cl_flags->flag_class & F_CLASS_IMPLICIT) | |
1662 | continue; | |
1663 | ||
4eb6f892 AB |
1664 | /* Check for extension conditional codes. */ |
1665 | if (ext_condcode.arc_ext_condcode | |
1666 | && cl_flags->flag_class & F_CLASS_EXTEND) | |
1667 | { | |
1668 | struct arc_flag_operand *pf = ext_condcode.arc_ext_condcode; | |
1669 | while (pf->name) | |
1670 | { | |
1671 | pflag = first_pflag; | |
1672 | for (i = 0; i < nflgs; i++, pflag++) | |
1673 | { | |
1674 | if (!strcmp (pf->name, pflag->name)) | |
1675 | { | |
1676 | if (pflag->flgp != NULL) | |
1677 | return FALSE; | |
1678 | /* Found it. */ | |
1679 | cl_matches++; | |
1680 | pflag->flgp = pf; | |
1681 | lnflg--; | |
1682 | break; | |
1683 | } | |
1684 | } | |
1685 | pf++; | |
1686 | } | |
1687 | } | |
1688 | ||
1689 | for (flgopridx = cl_flags->flags; *flgopridx; ++flgopridx) | |
1690 | { | |
1691 | const struct arc_flag_operand *flg_operand; | |
1692 | ||
1693 | pflag = first_pflag; | |
1694 | flg_operand = &arc_flag_operands[*flgopridx]; | |
1695 | for (i = 0; i < nflgs; i++, pflag++) | |
1696 | { | |
1697 | /* Match against the parsed flags. */ | |
1698 | if (!strcmp (flg_operand->name, pflag->name)) | |
1699 | { | |
1700 | if (pflag->flgp != NULL) | |
1701 | return FALSE; | |
1702 | cl_matches++; | |
1703 | pflag->flgp = flg_operand; | |
1704 | lnflg--; | |
1705 | break; /* goto next flag class and parsed flag. */ | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | if ((cl_flags->flag_class & F_CLASS_REQUIRED) && cl_matches == 0) | |
1711 | return FALSE; | |
1712 | if ((cl_flags->flag_class & F_CLASS_OPTIONAL) && cl_matches > 1) | |
1713 | return FALSE; | |
1714 | } | |
1715 | ||
1716 | /* Did I check all the parsed flags? */ | |
1717 | return lnflg ? FALSE : TRUE; | |
1718 | } | |
1719 | ||
1720 | ||
4670103e CZ |
1721 | /* Search forward through all variants of an opcode looking for a |
1722 | syntax match. */ | |
886a2506 | 1723 | |
4670103e | 1724 | static const struct arc_opcode * |
b9b47ab7 | 1725 | find_opcode_match (const struct arc_opcode_hash_entry *entry, |
4670103e CZ |
1726 | expressionS *tok, |
1727 | int *pntok, | |
1728 | struct arc_flags *first_pflag, | |
1729 | int nflgs, | |
abe7c33b CZ |
1730 | int *pcpumatch, |
1731 | const char **errmsg) | |
4670103e | 1732 | { |
1328504b AB |
1733 | const struct arc_opcode *opcode; |
1734 | struct arc_opcode_hash_entry_iterator iter; | |
4670103e CZ |
1735 | int ntok = *pntok; |
1736 | int got_cpu_match = 0; | |
1737 | expressionS bktok[MAX_INSN_ARGS]; | |
1738 | int bkntok; | |
1739 | expressionS emptyE; | |
886a2506 | 1740 | |
1328504b | 1741 | arc_opcode_hash_entry_iterator_init (&iter); |
4670103e CZ |
1742 | memset (&emptyE, 0, sizeof (emptyE)); |
1743 | memcpy (bktok, tok, MAX_INSN_ARGS * sizeof (*tok)); | |
1744 | bkntok = ntok; | |
a161fe53 | 1745 | |
1328504b AB |
1746 | for (opcode = arc_opcode_hash_entry_iterator_next (entry, &iter); |
1747 | opcode != NULL; | |
1748 | opcode = arc_opcode_hash_entry_iterator_next (entry, &iter)) | |
252b5132 | 1749 | { |
4670103e | 1750 | const unsigned char *opidx; |
4eb6f892 | 1751 | int tokidx = 0; |
4670103e | 1752 | const expressionS *t = &emptyE; |
252b5132 | 1753 | |
bdfe53e3 | 1754 | pr_debug ("%s:%d: find_opcode_match: trying opcode 0x%08llX ", |
4670103e | 1755 | frag_now->fr_file, frag_now->fr_line, opcode->opcode); |
886a2506 | 1756 | |
4670103e CZ |
1757 | /* Don't match opcodes that don't exist on this |
1758 | architecture. */ | |
bb65a718 | 1759 | if (!(opcode->cpu & selected_cpu.flags)) |
4670103e | 1760 | goto match_failed; |
886a2506 | 1761 | |
8ddf6b2a | 1762 | if (!check_cpu_feature (opcode->subclass)) |
4670103e | 1763 | goto match_failed; |
886a2506 | 1764 | |
4670103e CZ |
1765 | got_cpu_match = 1; |
1766 | pr_debug ("cpu "); | |
886a2506 | 1767 | |
4670103e CZ |
1768 | /* Check the operands. */ |
1769 | for (opidx = opcode->operands; *opidx; ++opidx) | |
252b5132 | 1770 | { |
4670103e | 1771 | const struct arc_operand *operand = &arc_operands[*opidx]; |
252b5132 | 1772 | |
4670103e | 1773 | /* Only take input from real operands. */ |
db18dbab | 1774 | if (ARC_OPERAND_IS_FAKE (operand)) |
4670103e | 1775 | continue; |
252b5132 | 1776 | |
4670103e CZ |
1777 | /* When we expect input, make sure we have it. */ |
1778 | if (tokidx >= ntok) | |
1779 | goto match_failed; | |
6f4b1afc | 1780 | |
4670103e CZ |
1781 | /* Match operand type with expression type. */ |
1782 | switch (operand->flags & ARC_OPERAND_TYPECHECK_MASK) | |
1783 | { | |
db18dbab | 1784 | case ARC_OPERAND_ADDRTYPE: |
b437d035 | 1785 | { |
abe7c33b | 1786 | *errmsg = NULL; |
b437d035 AB |
1787 | |
1788 | /* Check to be an address type. */ | |
1789 | if (tok[tokidx].X_op != O_addrtype) | |
1790 | goto match_failed; | |
1791 | ||
1792 | /* All address type operands need to have an insert | |
1793 | method in order to check that we have the correct | |
1794 | address type. */ | |
1795 | gas_assert (operand->insert != NULL); | |
1796 | (*operand->insert) (0, tok[tokidx].X_add_number, | |
abe7c33b CZ |
1797 | errmsg); |
1798 | if (*errmsg != NULL) | |
b437d035 AB |
1799 | goto match_failed; |
1800 | } | |
db18dbab GM |
1801 | break; |
1802 | ||
4670103e CZ |
1803 | case ARC_OPERAND_IR: |
1804 | /* Check to be a register. */ | |
1805 | if ((tok[tokidx].X_op != O_register | |
1806 | || !is_ir_num (tok[tokidx].X_add_number)) | |
1807 | && !(operand->flags & ARC_OPERAND_IGNORE)) | |
1808 | goto match_failed; | |
1809 | ||
1810 | /* If expect duplicate, make sure it is duplicate. */ | |
1811 | if (operand->flags & ARC_OPERAND_DUPLICATE) | |
1812 | { | |
1813 | /* Check for duplicate. */ | |
1814 | if (t->X_op != O_register | |
1815 | || !is_ir_num (t->X_add_number) | |
1816 | || (regno (t->X_add_number) != | |
1817 | regno (tok[tokidx].X_add_number))) | |
1818 | goto match_failed; | |
1819 | } | |
1820 | ||
1821 | /* Special handling? */ | |
1822 | if (operand->insert) | |
1823 | { | |
abe7c33b | 1824 | *errmsg = NULL; |
4670103e CZ |
1825 | (*operand->insert)(0, |
1826 | regno (tok[tokidx].X_add_number), | |
abe7c33b CZ |
1827 | errmsg); |
1828 | if (*errmsg) | |
4670103e CZ |
1829 | { |
1830 | if (operand->flags & ARC_OPERAND_IGNORE) | |
1831 | { | |
1832 | /* Missing argument, create one. */ | |
1833 | if (!allocate_tok (tok, ntok - 1, tokidx)) | |
1834 | goto match_failed; | |
1835 | ||
1836 | tok[tokidx].X_op = O_absent; | |
1837 | ++ntok; | |
1838 | } | |
1839 | else | |
1840 | goto match_failed; | |
1841 | } | |
1842 | } | |
1843 | ||
1844 | t = &tok[tokidx]; | |
1845 | break; | |
1846 | ||
1847 | case ARC_OPERAND_BRAKET: | |
1848 | /* Check if bracket is also in opcode table as | |
1849 | operand. */ | |
1850 | if (tok[tokidx].X_op != O_bracket) | |
1851 | goto match_failed; | |
1852 | break; | |
1853 | ||
db18dbab GM |
1854 | case ARC_OPERAND_COLON: |
1855 | /* Check if colon is also in opcode table as operand. */ | |
1856 | if (tok[tokidx].X_op != O_colon) | |
1857 | goto match_failed; | |
1858 | break; | |
1859 | ||
4670103e CZ |
1860 | case ARC_OPERAND_LIMM: |
1861 | case ARC_OPERAND_SIGNED: | |
1862 | case ARC_OPERAND_UNSIGNED: | |
1863 | switch (tok[tokidx].X_op) | |
1864 | { | |
1865 | case O_illegal: | |
1866 | case O_absent: | |
1867 | case O_register: | |
1868 | goto match_failed; | |
1869 | ||
1870 | case O_bracket: | |
1871 | /* Got an (too) early bracket, check if it is an | |
1872 | ignored operand. N.B. This procedure works only | |
1873 | when bracket is the last operand! */ | |
1874 | if (!(operand->flags & ARC_OPERAND_IGNORE)) | |
1875 | goto match_failed; | |
1876 | /* Insert the missing operand. */ | |
1877 | if (!allocate_tok (tok, ntok - 1, tokidx)) | |
1878 | goto match_failed; | |
1879 | ||
1880 | tok[tokidx].X_op = O_absent; | |
1881 | ++ntok; | |
1882 | break; | |
1883 | ||
22b92fc4 AB |
1884 | case O_symbol: |
1885 | { | |
1886 | const char *p; | |
b6523c37 | 1887 | char *tmpp, *pp; |
22b92fc4 | 1888 | const struct arc_aux_reg *auxr; |
22b92fc4 | 1889 | |
c810e0b8 | 1890 | if (opcode->insn_class != AUXREG) |
22b92fc4 AB |
1891 | goto de_fault; |
1892 | p = S_GET_NAME (tok[tokidx].X_add_symbol); | |
f36e33da | 1893 | |
b6523c37 | 1894 | /* For compatibility reasons, an aux register can |
1895 | be spelled with upper or lower case | |
1896 | letters. */ | |
1897 | tmpp = strdup (p); | |
1898 | for (pp = tmpp; *pp; ++pp) *pp = TOLOWER (*pp); | |
1899 | ||
1900 | auxr = hash_find (arc_aux_hash, tmpp); | |
f36e33da CZ |
1901 | if (auxr) |
1902 | { | |
1903 | /* We modify the token array here, safe in the | |
1904 | knowledge, that if this was the wrong | |
1905 | choice then the original contents will be | |
1906 | restored from BKTOK. */ | |
1907 | tok[tokidx].X_op = O_constant; | |
1908 | tok[tokidx].X_add_number = auxr->address; | |
1909 | ARC_SET_FLAG (tok[tokidx].X_add_symbol, ARC_FLAG_AUX); | |
1910 | } | |
b6523c37 | 1911 | free (tmpp); |
22b92fc4 AB |
1912 | |
1913 | if (tok[tokidx].X_op != O_constant) | |
1914 | goto de_fault; | |
1915 | } | |
1a0670f3 | 1916 | /* Fall through. */ |
4670103e CZ |
1917 | case O_constant: |
1918 | /* Check the range. */ | |
1919 | if (operand->bits != 32 | |
1920 | && !(operand->flags & ARC_OPERAND_NCHK)) | |
1921 | { | |
1922 | offsetT min, max, val; | |
1923 | val = tok[tokidx].X_add_number; | |
1924 | ||
1925 | if (operand->flags & ARC_OPERAND_SIGNED) | |
1926 | { | |
1927 | max = (1 << (operand->bits - 1)) - 1; | |
1928 | min = -(1 << (operand->bits - 1)); | |
1929 | } | |
1930 | else | |
1931 | { | |
1932 | max = (1 << operand->bits) - 1; | |
1933 | min = 0; | |
1934 | } | |
1935 | ||
1936 | if (val < min || val > max) | |
1937 | goto match_failed; | |
1938 | ||
33eaf5de | 1939 | /* Check alignments. */ |
4670103e CZ |
1940 | if ((operand->flags & ARC_OPERAND_ALIGNED32) |
1941 | && (val & 0x03)) | |
1942 | goto match_failed; | |
1943 | ||
1944 | if ((operand->flags & ARC_OPERAND_ALIGNED16) | |
1945 | && (val & 0x01)) | |
1946 | goto match_failed; | |
1947 | } | |
1948 | else if (operand->flags & ARC_OPERAND_NCHK) | |
1949 | { | |
1950 | if (operand->insert) | |
1951 | { | |
abe7c33b | 1952 | *errmsg = NULL; |
4670103e CZ |
1953 | (*operand->insert)(0, |
1954 | tok[tokidx].X_add_number, | |
abe7c33b CZ |
1955 | errmsg); |
1956 | if (*errmsg) | |
4670103e CZ |
1957 | goto match_failed; |
1958 | } | |
4eb6f892 | 1959 | else if (!(operand->flags & ARC_OPERAND_IGNORE)) |
4670103e CZ |
1960 | goto match_failed; |
1961 | } | |
1962 | break; | |
1963 | ||
1964 | case O_subtract: | |
1965 | /* Check if it is register range. */ | |
1966 | if ((tok[tokidx].X_add_number == 0) | |
1967 | && contains_register (tok[tokidx].X_add_symbol) | |
1968 | && contains_register (tok[tokidx].X_op_symbol)) | |
1969 | { | |
1970 | int regs; | |
1971 | ||
1972 | regs = get_register (tok[tokidx].X_add_symbol); | |
1973 | regs <<= 16; | |
1974 | regs |= get_register (tok[tokidx].X_op_symbol); | |
1975 | if (operand->insert) | |
1976 | { | |
abe7c33b | 1977 | *errmsg = NULL; |
4670103e CZ |
1978 | (*operand->insert)(0, |
1979 | regs, | |
abe7c33b CZ |
1980 | errmsg); |
1981 | if (*errmsg) | |
4670103e CZ |
1982 | goto match_failed; |
1983 | } | |
1984 | else | |
1985 | goto match_failed; | |
1986 | break; | |
1987 | } | |
1a0670f3 | 1988 | /* Fall through. */ |
4670103e | 1989 | default: |
22b92fc4 | 1990 | de_fault: |
4670103e CZ |
1991 | if (operand->default_reloc == 0) |
1992 | goto match_failed; /* The operand needs relocation. */ | |
1993 | ||
1994 | /* Relocs requiring long immediate. FIXME! make it | |
1995 | generic and move it to a function. */ | |
1996 | switch (tok[tokidx].X_md) | |
1997 | { | |
1998 | case O_gotoff: | |
1999 | case O_gotpc: | |
2000 | case O_pcl: | |
2001 | case O_tpoff: | |
2002 | case O_dtpoff: | |
2003 | case O_tlsgd: | |
2004 | case O_tlsie: | |
2005 | if (!(operand->flags & ARC_OPERAND_LIMM)) | |
2006 | goto match_failed; | |
1a0670f3 | 2007 | /* Fall through. */ |
4670103e CZ |
2008 | case O_absent: |
2009 | if (!generic_reloc_p (operand->default_reloc)) | |
2010 | goto match_failed; | |
2b804145 | 2011 | break; |
4670103e CZ |
2012 | default: |
2013 | break; | |
2014 | } | |
2015 | break; | |
2016 | } | |
2017 | /* If expect duplicate, make sure it is duplicate. */ | |
2018 | if (operand->flags & ARC_OPERAND_DUPLICATE) | |
2019 | { | |
2020 | if (t->X_op == O_illegal | |
2021 | || t->X_op == O_absent | |
2022 | || t->X_op == O_register | |
2023 | || (t->X_add_number != tok[tokidx].X_add_number)) | |
2024 | goto match_failed; | |
2025 | } | |
2026 | t = &tok[tokidx]; | |
2027 | break; | |
2028 | ||
2029 | default: | |
2030 | /* Everything else should have been fake. */ | |
2031 | abort (); | |
2032 | } | |
2033 | ||
2034 | ++tokidx; | |
2035 | } | |
2036 | pr_debug ("opr "); | |
2037 | ||
1ae8ab47 | 2038 | /* Setup ready for flag parsing. */ |
4eb6f892 | 2039 | if (!parse_opcode_flags (opcode, nflgs, first_pflag)) |
4670103e CZ |
2040 | goto match_failed; |
2041 | ||
2042 | pr_debug ("flg"); | |
2043 | /* Possible match -- did we use all of our input? */ | |
2044 | if (tokidx == ntok) | |
2045 | { | |
2046 | *pntok = ntok; | |
2047 | pr_debug ("\n"); | |
2048 | return opcode; | |
2049 | } | |
2050 | ||
2051 | match_failed:; | |
2052 | pr_debug ("\n"); | |
2053 | /* Restore the original parameters. */ | |
2054 | memcpy (tok, bktok, MAX_INSN_ARGS * sizeof (*tok)); | |
2055 | ntok = bkntok; | |
2056 | } | |
4670103e CZ |
2057 | |
2058 | if (*pcpumatch) | |
2059 | *pcpumatch = got_cpu_match; | |
2060 | ||
2061 | return NULL; | |
2062 | } | |
2063 | ||
2064 | /* Swap operand tokens. */ | |
2065 | ||
2066 | static void | |
2067 | swap_operand (expressionS *operand_array, | |
2068 | unsigned source, | |
2069 | unsigned destination) | |
2070 | { | |
2071 | expressionS cpy_operand; | |
2072 | expressionS *src_operand; | |
2073 | expressionS *dst_operand; | |
2074 | size_t size; | |
2075 | ||
2076 | if (source == destination) | |
2077 | return; | |
2078 | ||
2079 | src_operand = &operand_array[source]; | |
2080 | dst_operand = &operand_array[destination]; | |
2081 | size = sizeof (expressionS); | |
2082 | ||
2083 | /* Make copy of operand to swap with and swap. */ | |
2084 | memcpy (&cpy_operand, dst_operand, size); | |
2085 | memcpy (dst_operand, src_operand, size); | |
2086 | memcpy (src_operand, &cpy_operand, size); | |
2087 | } | |
2088 | ||
2089 | /* Check if *op matches *tok type. | |
2090 | Returns FALSE if they don't match, TRUE if they match. */ | |
2091 | ||
2092 | static bfd_boolean | |
2093 | pseudo_operand_match (const expressionS *tok, | |
2094 | const struct arc_operand_operation *op) | |
2095 | { | |
2096 | offsetT min, max, val; | |
2097 | bfd_boolean ret; | |
2098 | const struct arc_operand *operand_real = &arc_operands[op->operand_idx]; | |
2099 | ||
2100 | ret = FALSE; | |
2101 | switch (tok->X_op) | |
2102 | { | |
2103 | case O_constant: | |
2104 | if (operand_real->bits == 32 && (operand_real->flags & ARC_OPERAND_LIMM)) | |
2105 | ret = 1; | |
2106 | else if (!(operand_real->flags & ARC_OPERAND_IR)) | |
2107 | { | |
2108 | val = tok->X_add_number + op->count; | |
2109 | if (operand_real->flags & ARC_OPERAND_SIGNED) | |
2110 | { | |
2111 | max = (1 << (operand_real->bits - 1)) - 1; | |
2112 | min = -(1 << (operand_real->bits - 1)); | |
2113 | } | |
2114 | else | |
2115 | { | |
2116 | max = (1 << operand_real->bits) - 1; | |
2117 | min = 0; | |
2118 | } | |
2119 | if (min <= val && val <= max) | |
2120 | ret = TRUE; | |
2121 | } | |
6f4b1afc CM |
2122 | break; |
2123 | ||
4670103e CZ |
2124 | case O_symbol: |
2125 | /* Handle all symbols as long immediates or signed 9. */ | |
db18dbab GM |
2126 | if (operand_real->flags & ARC_OPERAND_LIMM |
2127 | || ((operand_real->flags & ARC_OPERAND_SIGNED) | |
2128 | && operand_real->bits == 9)) | |
4670103e | 2129 | ret = TRUE; |
6f4b1afc CM |
2130 | break; |
2131 | ||
4670103e CZ |
2132 | case O_register: |
2133 | if (operand_real->flags & ARC_OPERAND_IR) | |
2134 | ret = TRUE; | |
2135 | break; | |
2136 | ||
2137 | case O_bracket: | |
2138 | if (operand_real->flags & ARC_OPERAND_BRAKET) | |
2139 | ret = TRUE; | |
6f4b1afc CM |
2140 | break; |
2141 | ||
2142 | default: | |
4670103e | 2143 | /* Unknown. */ |
6f4b1afc CM |
2144 | break; |
2145 | } | |
4670103e CZ |
2146 | return ret; |
2147 | } | |
6f4b1afc | 2148 | |
4670103e CZ |
2149 | /* Find pseudo instruction in array. */ |
2150 | ||
2151 | static const struct arc_pseudo_insn * | |
2152 | find_pseudo_insn (const char *opname, | |
2153 | int ntok, | |
2154 | const expressionS *tok) | |
2155 | { | |
2156 | const struct arc_pseudo_insn *pseudo_insn = NULL; | |
2157 | const struct arc_operand_operation *op; | |
2158 | unsigned int i; | |
2159 | int j; | |
2160 | ||
2161 | for (i = 0; i < arc_num_pseudo_insn; ++i) | |
6f4b1afc | 2162 | { |
4670103e CZ |
2163 | pseudo_insn = &arc_pseudo_insns[i]; |
2164 | if (strcmp (pseudo_insn->mnemonic_p, opname) == 0) | |
2165 | { | |
2166 | op = pseudo_insn->operand; | |
2167 | for (j = 0; j < ntok; ++j) | |
2168 | if (!pseudo_operand_match (&tok[j], &op[j])) | |
2169 | break; | |
2170 | ||
2171 | /* Found the right instruction. */ | |
2172 | if (j == ntok) | |
2173 | return pseudo_insn; | |
2174 | } | |
6f4b1afc | 2175 | } |
4670103e CZ |
2176 | return NULL; |
2177 | } | |
252b5132 | 2178 | |
4670103e | 2179 | /* Assumes the expressionS *tok is of sufficient size. */ |
252b5132 | 2180 | |
b9b47ab7 | 2181 | static const struct arc_opcode_hash_entry * |
4670103e CZ |
2182 | find_special_case_pseudo (const char *opname, |
2183 | int *ntok, | |
2184 | expressionS *tok, | |
2185 | int *nflgs, | |
2186 | struct arc_flags *pflags) | |
2187 | { | |
2188 | const struct arc_pseudo_insn *pseudo_insn = NULL; | |
2189 | const struct arc_operand_operation *operand_pseudo; | |
2190 | const struct arc_operand *operand_real; | |
2191 | unsigned i; | |
2192 | char construct_operand[MAX_CONSTR_STR]; | |
886a2506 | 2193 | |
4670103e CZ |
2194 | /* Find whether opname is in pseudo instruction array. */ |
2195 | pseudo_insn = find_pseudo_insn (opname, *ntok, tok); | |
2196 | ||
2197 | if (pseudo_insn == NULL) | |
2198 | return NULL; | |
2199 | ||
2200 | /* Handle flag, Limited to one flag at the moment. */ | |
2201 | if (pseudo_insn->flag_r != NULL) | |
2202 | *nflgs += tokenize_flags (pseudo_insn->flag_r, &pflags[*nflgs], | |
2203 | MAX_INSN_FLGS - *nflgs); | |
2204 | ||
2205 | /* Handle operand operations. */ | |
2206 | for (i = 0; i < pseudo_insn->operand_cnt; ++i) | |
252b5132 | 2207 | { |
4670103e CZ |
2208 | operand_pseudo = &pseudo_insn->operand[i]; |
2209 | operand_real = &arc_operands[operand_pseudo->operand_idx]; | |
886a2506 | 2210 | |
db18dbab GM |
2211 | if (operand_real->flags & ARC_OPERAND_BRAKET |
2212 | && !operand_pseudo->needs_insert) | |
4670103e | 2213 | continue; |
b125bd17 | 2214 | |
4670103e CZ |
2215 | /* Has to be inserted (i.e. this token does not exist yet). */ |
2216 | if (operand_pseudo->needs_insert) | |
2217 | { | |
2218 | if (operand_real->flags & ARC_OPERAND_BRAKET) | |
2219 | { | |
2220 | tok[i].X_op = O_bracket; | |
2221 | ++(*ntok); | |
2222 | continue; | |
2223 | } | |
b125bd17 | 2224 | |
4670103e CZ |
2225 | /* Check if operand is a register or constant and handle it |
2226 | by type. */ | |
2227 | if (operand_real->flags & ARC_OPERAND_IR) | |
2228 | snprintf (construct_operand, MAX_CONSTR_STR, "r%d", | |
2229 | operand_pseudo->count); | |
2230 | else | |
2231 | snprintf (construct_operand, MAX_CONSTR_STR, "%d", | |
2232 | operand_pseudo->count); | |
886a2506 | 2233 | |
4670103e CZ |
2234 | tokenize_arguments (construct_operand, &tok[i], 1); |
2235 | ++(*ntok); | |
2236 | } | |
2237 | ||
2238 | else if (operand_pseudo->count) | |
2239 | { | |
2240 | /* Operand number has to be adjusted accordingly (by operand | |
2241 | type). */ | |
2242 | switch (tok[i].X_op) | |
2243 | { | |
2244 | case O_constant: | |
2245 | tok[i].X_add_number += operand_pseudo->count; | |
2246 | break; | |
2247 | ||
2248 | case O_symbol: | |
2249 | break; | |
2250 | ||
2251 | default: | |
2252 | /* Ignored. */ | |
2253 | break; | |
2254 | } | |
2255 | } | |
2256 | } | |
2257 | ||
2258 | /* Swap operands if necessary. Only supports one swap at the | |
2259 | moment. */ | |
2260 | for (i = 0; i < pseudo_insn->operand_cnt; ++i) | |
2261 | { | |
2262 | operand_pseudo = &pseudo_insn->operand[i]; | |
2263 | ||
2264 | if (operand_pseudo->swap_operand_idx == i) | |
2265 | continue; | |
2266 | ||
2267 | swap_operand (tok, i, operand_pseudo->swap_operand_idx); | |
2268 | ||
2269 | /* Prevent a swap back later by breaking out. */ | |
2270 | break; | |
2271 | } | |
2272 | ||
da5be039 | 2273 | return arc_find_opcode (pseudo_insn->mnemonic_r); |
4670103e CZ |
2274 | } |
2275 | ||
b9b47ab7 | 2276 | static const struct arc_opcode_hash_entry * |
4670103e CZ |
2277 | find_special_case_flag (const char *opname, |
2278 | int *nflgs, | |
2279 | struct arc_flags *pflags) | |
2280 | { | |
2281 | unsigned int i; | |
2282 | const char *flagnm; | |
2283 | unsigned flag_idx, flag_arr_idx; | |
2284 | size_t flaglen, oplen; | |
2285 | const struct arc_flag_special *arc_flag_special_opcode; | |
b9b47ab7 | 2286 | const struct arc_opcode_hash_entry *entry; |
4670103e CZ |
2287 | |
2288 | /* Search for special case instruction. */ | |
2289 | for (i = 0; i < arc_num_flag_special; i++) | |
2290 | { | |
2291 | arc_flag_special_opcode = &arc_flag_special_cases[i]; | |
2292 | oplen = strlen (arc_flag_special_opcode->name); | |
2293 | ||
2294 | if (strncmp (opname, arc_flag_special_opcode->name, oplen) != 0) | |
2295 | continue; | |
2296 | ||
2297 | /* Found a potential special case instruction, now test for | |
2298 | flags. */ | |
2299 | for (flag_arr_idx = 0;; ++flag_arr_idx) | |
2300 | { | |
2301 | flag_idx = arc_flag_special_opcode->flags[flag_arr_idx]; | |
2302 | if (flag_idx == 0) | |
2303 | break; /* End of array, nothing found. */ | |
886a2506 | 2304 | |
4670103e CZ |
2305 | flagnm = arc_flag_operands[flag_idx].name; |
2306 | flaglen = strlen (flagnm); | |
2307 | if (strcmp (opname + oplen, flagnm) == 0) | |
2308 | { | |
b9b47ab7 | 2309 | entry = arc_find_opcode (arc_flag_special_opcode->name); |
886a2506 | 2310 | |
4670103e CZ |
2311 | if (*nflgs + 1 > MAX_INSN_FLGS) |
2312 | break; | |
2313 | memcpy (pflags[*nflgs].name, flagnm, flaglen); | |
2314 | pflags[*nflgs].name[flaglen] = '\0'; | |
2315 | (*nflgs)++; | |
b9b47ab7 | 2316 | return entry; |
4670103e CZ |
2317 | } |
2318 | } | |
2319 | } | |
2320 | return NULL; | |
2321 | } | |
886a2506 | 2322 | |
4670103e | 2323 | /* Used to find special case opcode. */ |
886a2506 | 2324 | |
b9b47ab7 | 2325 | static const struct arc_opcode_hash_entry * |
4670103e CZ |
2326 | find_special_case (const char *opname, |
2327 | int *nflgs, | |
2328 | struct arc_flags *pflags, | |
2329 | expressionS *tok, | |
2330 | int *ntok) | |
2331 | { | |
b9b47ab7 | 2332 | const struct arc_opcode_hash_entry *entry; |
886a2506 | 2333 | |
b9b47ab7 | 2334 | entry = find_special_case_pseudo (opname, ntok, tok, nflgs, pflags); |
886a2506 | 2335 | |
b9b47ab7 AB |
2336 | if (entry == NULL) |
2337 | entry = find_special_case_flag (opname, nflgs, pflags); | |
886a2506 | 2338 | |
b9b47ab7 | 2339 | return entry; |
4670103e | 2340 | } |
886a2506 | 2341 | |
53a346d8 CZ |
2342 | /* Autodetect cpu attribute list. */ |
2343 | ||
2344 | static void | |
2345 | autodetect_attributes (const struct arc_opcode *opcode, | |
2346 | const expressionS *tok, | |
2347 | int ntok) | |
2348 | { | |
2349 | unsigned i; | |
2350 | struct mpy_type | |
2351 | { | |
2352 | unsigned feature; | |
2353 | unsigned encoding; | |
2354 | } mpy_list[] = {{ MPY1E, 1 }, { MPY6E, 6 }, { MPY7E, 7 }, { MPY8E, 8 }, | |
2355 | { MPY9E, 9 }}; | |
2356 | ||
2357 | for (i = 0; i < ARRAY_SIZE (feature_list); i++) | |
2358 | if (opcode->subclass == feature_list[i].feature) | |
2359 | selected_cpu.features |= feature_list[i].feature; | |
2360 | ||
2361 | for (i = 0; i < ARRAY_SIZE (mpy_list); i++) | |
2362 | if (opcode->subclass == mpy_list[i].feature) | |
2363 | mpy_option = mpy_list[i].encoding; | |
2364 | ||
2365 | for (i = 0; i < (unsigned) ntok; i++) | |
2366 | { | |
2367 | switch (tok[i].X_md) | |
2368 | { | |
2369 | case O_gotoff: | |
2370 | case O_gotpc: | |
2371 | case O_plt: | |
2372 | pic_option = 2; | |
2373 | break; | |
2374 | case O_sda: | |
2375 | sda_option = 2; | |
2376 | break; | |
2377 | case O_tlsgd: | |
2378 | case O_tlsie: | |
2379 | case O_tpoff9: | |
2380 | case O_tpoff: | |
2381 | case O_dtpoff9: | |
2382 | case O_dtpoff: | |
2383 | tls_option = 1; | |
2384 | break; | |
2385 | default: | |
2386 | break; | |
2387 | } | |
63741043 | 2388 | |
2389 | switch (tok[i].X_op) | |
2390 | { | |
2391 | case O_register: | |
2392 | if ((tok[i].X_add_number >= 4 && tok[i].X_add_number <= 9) | |
2393 | || (tok[i].X_add_number >= 16 && tok[i].X_add_number <= 25)) | |
2394 | rf16_only = FALSE; | |
2395 | break; | |
2396 | default: | |
2397 | break; | |
2398 | } | |
53a346d8 CZ |
2399 | } |
2400 | } | |
2401 | ||
2402 | /* Given an opcode name, pre-tockenized set of argumenst and the | |
4670103e | 2403 | opcode flags, take it all the way through emission. */ |
886a2506 | 2404 | |
4670103e CZ |
2405 | static void |
2406 | assemble_tokens (const char *opname, | |
2407 | expressionS *tok, | |
2408 | int ntok, | |
2409 | struct arc_flags *pflags, | |
2410 | int nflgs) | |
2411 | { | |
2412 | bfd_boolean found_something = FALSE; | |
b9b47ab7 | 2413 | const struct arc_opcode_hash_entry *entry; |
4670103e | 2414 | int cpumatch = 1; |
abe7c33b | 2415 | const char *errmsg = NULL; |
886a2506 | 2416 | |
4670103e | 2417 | /* Search opcodes. */ |
b9b47ab7 | 2418 | entry = arc_find_opcode (opname); |
886a2506 | 2419 | |
4670103e | 2420 | /* Couldn't find opcode conventional way, try special cases. */ |
b9b47ab7 AB |
2421 | if (entry == NULL) |
2422 | entry = find_special_case (opname, &nflgs, pflags, tok, &ntok); | |
886a2506 | 2423 | |
b9b47ab7 | 2424 | if (entry != NULL) |
4670103e | 2425 | { |
b9b47ab7 AB |
2426 | const struct arc_opcode *opcode; |
2427 | ||
1328504b AB |
2428 | pr_debug ("%s:%d: assemble_tokens: %s\n", |
2429 | frag_now->fr_file, frag_now->fr_line, opname); | |
4670103e | 2430 | found_something = TRUE; |
b9b47ab7 | 2431 | opcode = find_opcode_match (entry, tok, &ntok, pflags, |
abe7c33b | 2432 | nflgs, &cpumatch, &errmsg); |
b9b47ab7 | 2433 | if (opcode != NULL) |
4670103e CZ |
2434 | { |
2435 | struct arc_insn insn; | |
b9b47ab7 | 2436 | |
53a346d8 | 2437 | autodetect_attributes (opcode, tok, ntok); |
4670103e CZ |
2438 | assemble_insn (opcode, tok, ntok, pflags, nflgs, &insn); |
2439 | emit_insn (&insn); | |
2440 | return; | |
2441 | } | |
2442 | } | |
886a2506 | 2443 | |
4670103e CZ |
2444 | if (found_something) |
2445 | { | |
2446 | if (cpumatch) | |
abe7c33b CZ |
2447 | if (errmsg) |
2448 | as_bad (_("%s for instruction '%s'"), errmsg, opname); | |
2449 | else | |
2450 | as_bad (_("inappropriate arguments for opcode '%s'"), opname); | |
4670103e CZ |
2451 | else |
2452 | as_bad (_("opcode '%s' not supported for target %s"), opname, | |
bb65a718 | 2453 | selected_cpu.name); |
4670103e CZ |
2454 | } |
2455 | else | |
2456 | as_bad (_("unknown opcode '%s'"), opname); | |
886a2506 NC |
2457 | } |
2458 | ||
4670103e | 2459 | /* The public interface to the instruction assembler. */ |
886a2506 | 2460 | |
4670103e CZ |
2461 | void |
2462 | md_assemble (char *str) | |
886a2506 | 2463 | { |
4670103e CZ |
2464 | char *opname; |
2465 | expressionS tok[MAX_INSN_ARGS]; | |
2466 | int ntok, nflg; | |
2467 | size_t opnamelen; | |
2468 | struct arc_flags flags[MAX_INSN_FLGS]; | |
886a2506 | 2469 | |
4670103e CZ |
2470 | /* Split off the opcode. */ |
2471 | opnamelen = strspn (str, "abcdefghijklmnopqrstuvwxyz_0123468"); | |
29a2809e | 2472 | opname = xmemdup0 (str, opnamelen); |
886a2506 | 2473 | |
33eaf5de | 2474 | /* Signalize we are assembling the instructions. */ |
4670103e | 2475 | assembling_insn = TRUE; |
886a2506 | 2476 | |
4670103e CZ |
2477 | /* Tokenize the flags. */ |
2478 | if ((nflg = tokenize_flags (str + opnamelen, flags, MAX_INSN_FLGS)) == -1) | |
2479 | { | |
2480 | as_bad (_("syntax error")); | |
2481 | return; | |
2482 | } | |
886a2506 | 2483 | |
4670103e CZ |
2484 | /* Scan up to the end of the mnemonic which must end in space or end |
2485 | of string. */ | |
2486 | str += opnamelen; | |
2487 | for (; *str != '\0'; str++) | |
2488 | if (*str == ' ') | |
2489 | break; | |
886a2506 | 2490 | |
4670103e CZ |
2491 | /* Tokenize the rest of the line. */ |
2492 | if ((ntok = tokenize_arguments (str, tok, MAX_INSN_ARGS)) < 0) | |
886a2506 | 2493 | { |
4670103e CZ |
2494 | as_bad (_("syntax error")); |
2495 | return; | |
252b5132 RH |
2496 | } |
2497 | ||
4670103e CZ |
2498 | /* Finish it off. */ |
2499 | assemble_tokens (opname, tok, ntok, flags, nflg); | |
2500 | assembling_insn = FALSE; | |
2501 | } | |
2502 | ||
2503 | /* Callback to insert a register into the hash table. */ | |
2504 | ||
2505 | static void | |
f86f5863 | 2506 | declare_register (const char *name, int number) |
4670103e CZ |
2507 | { |
2508 | const char *err; | |
2509 | symbolS *regS = symbol_create (name, reg_section, | |
2510 | number, &zero_address_frag); | |
2511 | ||
2512 | err = hash_insert (arc_reg_hash, S_GET_NAME (regS), (void *) regS); | |
2513 | if (err) | |
e6ba1cba | 2514 | as_fatal (_("Inserting \"%s\" into register table failed: %s"), |
4670103e CZ |
2515 | name, err); |
2516 | } | |
252b5132 | 2517 | |
4670103e | 2518 | /* Construct symbols for each of the general registers. */ |
252b5132 | 2519 | |
4670103e CZ |
2520 | static void |
2521 | declare_register_set (void) | |
2522 | { | |
2523 | int i; | |
2524 | for (i = 0; i < 64; ++i) | |
886a2506 | 2525 | { |
4670103e CZ |
2526 | char name[7]; |
2527 | ||
2528 | sprintf (name, "r%d", i); | |
2529 | declare_register (name, i); | |
2530 | if ((i & 0x01) == 0) | |
886a2506 | 2531 | { |
4670103e CZ |
2532 | sprintf (name, "r%dr%d", i, i+1); |
2533 | declare_register (name, i); | |
886a2506 NC |
2534 | } |
2535 | } | |
252b5132 | 2536 | } |
ea1562b3 | 2537 | |
db18dbab GM |
2538 | /* Construct a symbol for an address type. */ |
2539 | ||
2540 | static void | |
2541 | declare_addrtype (const char *name, int number) | |
2542 | { | |
2543 | const char *err; | |
2544 | symbolS *addrtypeS = symbol_create (name, undefined_section, | |
2545 | number, &zero_address_frag); | |
2546 | ||
2547 | err = hash_insert (arc_addrtype_hash, S_GET_NAME (addrtypeS), | |
2548 | (void *) addrtypeS); | |
2549 | if (err) | |
2550 | as_fatal (_("Inserting \"%s\" into address type table failed: %s"), | |
2551 | name, err); | |
2552 | } | |
2553 | ||
4670103e CZ |
2554 | /* Port-specific assembler initialization. This function is called |
2555 | once, at assembler startup time. */ | |
ea1562b3 NC |
2556 | |
2557 | void | |
4670103e | 2558 | md_begin (void) |
ea1562b3 | 2559 | { |
b99747ae | 2560 | const struct arc_opcode *opcode = arc_opcodes; |
886a2506 | 2561 | |
bb65a718 AB |
2562 | if (mach_selection_mode == MACH_SELECTION_NONE) |
2563 | arc_select_cpu (TARGET_WITH_CPU, MACH_SELECTION_FROM_DEFAULT); | |
24740d83 | 2564 | |
4670103e CZ |
2565 | /* The endianness can be chosen "at the factory". */ |
2566 | target_big_endian = byte_order == BIG_ENDIAN; | |
886a2506 | 2567 | |
bb65a718 | 2568 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_arc, selected_cpu.mach)) |
4670103e CZ |
2569 | as_warn (_("could not set architecture and machine")); |
2570 | ||
2571 | /* Set elf header flags. */ | |
bb65a718 | 2572 | bfd_set_private_flags (stdoutput, selected_cpu.eflags); |
4670103e CZ |
2573 | |
2574 | /* Set up a hash table for the instructions. */ | |
2575 | arc_opcode_hash = hash_new (); | |
2576 | if (arc_opcode_hash == NULL) | |
2577 | as_fatal (_("Virtual memory exhausted")); | |
2578 | ||
2579 | /* Initialize the hash table with the insns. */ | |
b99747ae | 2580 | do |
ea1562b3 | 2581 | { |
b99747ae | 2582 | const char *name = opcode->name; |
da5be039 | 2583 | |
b99747ae | 2584 | arc_insert_opcode (opcode); |
4670103e | 2585 | |
b99747ae CZ |
2586 | while (++opcode && opcode->name |
2587 | && (opcode->name == name | |
2588 | || !strcmp (opcode->name, name))) | |
4670103e | 2589 | continue; |
b99747ae | 2590 | }while (opcode->name); |
4670103e CZ |
2591 | |
2592 | /* Register declaration. */ | |
2593 | arc_reg_hash = hash_new (); | |
2594 | if (arc_reg_hash == NULL) | |
2595 | as_fatal (_("Virtual memory exhausted")); | |
2596 | ||
2597 | declare_register_set (); | |
2598 | declare_register ("gp", 26); | |
2599 | declare_register ("fp", 27); | |
2600 | declare_register ("sp", 28); | |
2601 | declare_register ("ilink", 29); | |
2602 | declare_register ("ilink1", 29); | |
2603 | declare_register ("ilink2", 30); | |
2604 | declare_register ("blink", 31); | |
2605 | ||
87789e08 CZ |
2606 | /* XY memory registers. */ |
2607 | declare_register ("x0_u0", 32); | |
2608 | declare_register ("x0_u1", 33); | |
2609 | declare_register ("x1_u0", 34); | |
2610 | declare_register ("x1_u1", 35); | |
2611 | declare_register ("x2_u0", 36); | |
2612 | declare_register ("x2_u1", 37); | |
2613 | declare_register ("x3_u0", 38); | |
2614 | declare_register ("x3_u1", 39); | |
2615 | declare_register ("y0_u0", 40); | |
2616 | declare_register ("y0_u1", 41); | |
2617 | declare_register ("y1_u0", 42); | |
2618 | declare_register ("y1_u1", 43); | |
2619 | declare_register ("y2_u0", 44); | |
2620 | declare_register ("y2_u1", 45); | |
2621 | declare_register ("y3_u0", 46); | |
2622 | declare_register ("y3_u1", 47); | |
2623 | declare_register ("x0_nu", 48); | |
2624 | declare_register ("x1_nu", 49); | |
2625 | declare_register ("x2_nu", 50); | |
2626 | declare_register ("x3_nu", 51); | |
2627 | declare_register ("y0_nu", 52); | |
2628 | declare_register ("y1_nu", 53); | |
2629 | declare_register ("y2_nu", 54); | |
2630 | declare_register ("y3_nu", 55); | |
2631 | ||
4670103e CZ |
2632 | declare_register ("mlo", 57); |
2633 | declare_register ("mmid", 58); | |
2634 | declare_register ("mhi", 59); | |
2635 | ||
2636 | declare_register ("acc1", 56); | |
2637 | declare_register ("acc2", 57); | |
2638 | ||
2639 | declare_register ("lp_count", 60); | |
2640 | declare_register ("pcl", 63); | |
2641 | ||
2642 | /* Initialize the last instructions. */ | |
2643 | memset (&arc_last_insns[0], 0, sizeof (arc_last_insns)); | |
f36e33da CZ |
2644 | |
2645 | /* Aux register declaration. */ | |
2646 | arc_aux_hash = hash_new (); | |
2647 | if (arc_aux_hash == NULL) | |
2648 | as_fatal (_("Virtual memory exhausted")); | |
2649 | ||
2650 | const struct arc_aux_reg *auxr = &arc_aux_regs[0]; | |
2651 | unsigned int i; | |
2652 | for (i = 0; i < arc_num_aux_regs; i++, auxr++) | |
2653 | { | |
2654 | const char *retval; | |
2655 | ||
bb65a718 | 2656 | if (!(auxr->cpu & selected_cpu.flags)) |
f36e33da CZ |
2657 | continue; |
2658 | ||
2659 | if ((auxr->subclass != NONE) | |
2660 | && !check_cpu_feature (auxr->subclass)) | |
2661 | continue; | |
2662 | ||
2663 | retval = hash_insert (arc_aux_hash, auxr->name, (void *) auxr); | |
2664 | if (retval) | |
2665 | as_fatal (_("internal error: can't hash aux register '%s': %s"), | |
2666 | auxr->name, retval); | |
2667 | } | |
db18dbab GM |
2668 | |
2669 | /* Address type declaration. */ | |
2670 | arc_addrtype_hash = hash_new (); | |
2671 | if (arc_addrtype_hash == NULL) | |
2672 | as_fatal (_("Virtual memory exhausted")); | |
2673 | ||
2674 | declare_addrtype ("bd", ARC_NPS400_ADDRTYPE_BD); | |
2675 | declare_addrtype ("jid", ARC_NPS400_ADDRTYPE_JID); | |
2676 | declare_addrtype ("lbd", ARC_NPS400_ADDRTYPE_LBD); | |
2677 | declare_addrtype ("mbd", ARC_NPS400_ADDRTYPE_MBD); | |
2678 | declare_addrtype ("sd", ARC_NPS400_ADDRTYPE_SD); | |
2679 | declare_addrtype ("sm", ARC_NPS400_ADDRTYPE_SM); | |
2680 | declare_addrtype ("xa", ARC_NPS400_ADDRTYPE_XA); | |
2681 | declare_addrtype ("xd", ARC_NPS400_ADDRTYPE_XD); | |
2682 | declare_addrtype ("cd", ARC_NPS400_ADDRTYPE_CD); | |
2683 | declare_addrtype ("cbd", ARC_NPS400_ADDRTYPE_CBD); | |
2684 | declare_addrtype ("cjid", ARC_NPS400_ADDRTYPE_CJID); | |
2685 | declare_addrtype ("clbd", ARC_NPS400_ADDRTYPE_CLBD); | |
2686 | declare_addrtype ("cm", ARC_NPS400_ADDRTYPE_CM); | |
2687 | declare_addrtype ("csd", ARC_NPS400_ADDRTYPE_CSD); | |
2688 | declare_addrtype ("cxa", ARC_NPS400_ADDRTYPE_CXA); | |
2689 | declare_addrtype ("cxd", ARC_NPS400_ADDRTYPE_CXD); | |
886a2506 | 2690 | } |
ea1562b3 | 2691 | |
4670103e CZ |
2692 | /* Write a value out to the object file, using the appropriate |
2693 | endianness. */ | |
ea1562b3 | 2694 | |
4670103e CZ |
2695 | void |
2696 | md_number_to_chars (char *buf, | |
2697 | valueT val, | |
2698 | int n) | |
886a2506 | 2699 | { |
4670103e CZ |
2700 | if (target_big_endian) |
2701 | number_to_chars_bigendian (buf, val, n); | |
2702 | else | |
2703 | number_to_chars_littleendian (buf, val, n); | |
886a2506 | 2704 | } |
ea1562b3 | 2705 | |
4670103e | 2706 | /* Round up a section size to the appropriate boundary. */ |
ea1562b3 | 2707 | |
4670103e CZ |
2708 | valueT |
2709 | md_section_align (segT segment, | |
2710 | valueT size) | |
886a2506 | 2711 | { |
4670103e CZ |
2712 | int align = bfd_get_section_alignment (stdoutput, segment); |
2713 | ||
2714 | return ((size + (1 << align) - 1) & (-((valueT) 1 << align))); | |
886a2506 | 2715 | } |
ea1562b3 | 2716 | |
4670103e CZ |
2717 | /* The location from which a PC relative jump should be calculated, |
2718 | given a PC relative reloc. */ | |
ea1562b3 | 2719 | |
4670103e CZ |
2720 | long |
2721 | md_pcrel_from_section (fixS *fixP, | |
2722 | segT sec) | |
886a2506 | 2723 | { |
4670103e | 2724 | offsetT base = fixP->fx_where + fixP->fx_frag->fr_address; |
ea1562b3 | 2725 | |
4670103e | 2726 | pr_debug ("pcrel_from_section, fx_offset = %d\n", (int) fixP->fx_offset); |
ea1562b3 | 2727 | |
4670103e CZ |
2728 | if (fixP->fx_addsy != (symbolS *) NULL |
2729 | && (!S_IS_DEFINED (fixP->fx_addsy) | |
2730 | || S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
2731 | { | |
2732 | pr_debug ("Unknown pcrel symbol: %s\n", S_GET_NAME (fixP->fx_addsy)); | |
ea1562b3 | 2733 | |
4670103e CZ |
2734 | /* The symbol is undefined (or is defined but not in this section). |
2735 | Let the linker figure it out. */ | |
2736 | return 0; | |
2737 | } | |
2738 | ||
2739 | if ((int) fixP->fx_r_type < 0) | |
886a2506 | 2740 | { |
4670103e CZ |
2741 | /* These are the "internal" relocations. Align them to |
2742 | 32 bit boundary (PCL), for the moment. */ | |
2743 | base &= ~3; | |
886a2506 | 2744 | } |
4670103e CZ |
2745 | else |
2746 | { | |
2747 | switch (fixP->fx_r_type) | |
2748 | { | |
2749 | case BFD_RELOC_ARC_PC32: | |
2750 | /* The hardware calculates relative to the start of the | |
2751 | insn, but this relocation is relative to location of the | |
2752 | LIMM, compensate. The base always needs to be | |
2b0f3761 | 2753 | subtracted by 4 as we do not support this type of PCrel |
4670103e CZ |
2754 | relocation for short instructions. */ |
2755 | base -= 4; | |
2756 | /* Fall through. */ | |
2757 | case BFD_RELOC_ARC_PLT32: | |
2758 | case BFD_RELOC_ARC_S25H_PCREL_PLT: | |
2759 | case BFD_RELOC_ARC_S21H_PCREL_PLT: | |
2760 | case BFD_RELOC_ARC_S25W_PCREL_PLT: | |
2761 | case BFD_RELOC_ARC_S21W_PCREL_PLT: | |
2762 | ||
2763 | case BFD_RELOC_ARC_S21H_PCREL: | |
2764 | case BFD_RELOC_ARC_S25H_PCREL: | |
2765 | case BFD_RELOC_ARC_S13_PCREL: | |
2766 | case BFD_RELOC_ARC_S21W_PCREL: | |
2767 | case BFD_RELOC_ARC_S25W_PCREL: | |
2768 | base &= ~3; | |
2769 | break; | |
2770 | default: | |
2771 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2772 | _("unhandled reloc %s in md_pcrel_from_section"), | |
2773 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
2774 | break; | |
2775 | } | |
2776 | } | |
2777 | ||
9e32d9ae AB |
2778 | pr_debug ("pcrel from %"BFD_VMA_FMT"x + %lx = %"BFD_VMA_FMT"x, " |
2779 | "symbol: %s (%"BFD_VMA_FMT"x)\n", | |
4670103e CZ |
2780 | fixP->fx_frag->fr_address, fixP->fx_where, base, |
2781 | fixP->fx_addsy ? S_GET_NAME (fixP->fx_addsy) : "(null)", | |
2782 | fixP->fx_addsy ? S_GET_VALUE (fixP->fx_addsy) : 0); | |
2783 | ||
2784 | return base; | |
886a2506 | 2785 | } |
ea1562b3 | 2786 | |
33eaf5de | 2787 | /* Given a BFD relocation find the corresponding operand. */ |
ea1562b3 | 2788 | |
4670103e CZ |
2789 | static const struct arc_operand * |
2790 | find_operand_for_reloc (extended_bfd_reloc_code_real_type reloc) | |
2791 | { | |
2792 | unsigned i; | |
ea1562b3 | 2793 | |
4670103e CZ |
2794 | for (i = 0; i < arc_num_operands; i++) |
2795 | if (arc_operands[i].default_reloc == reloc) | |
2796 | return &arc_operands[i]; | |
2797 | return NULL; | |
2798 | } | |
ea1562b3 | 2799 | |
4670103e | 2800 | /* Insert an operand value into an instruction. */ |
ea1562b3 | 2801 | |
bdfe53e3 AB |
2802 | static unsigned long long |
2803 | insert_operand (unsigned long long insn, | |
4670103e | 2804 | const struct arc_operand *operand, |
bdfe53e3 | 2805 | long long val, |
3b4dbbbf | 2806 | const char *file, |
4670103e | 2807 | unsigned line) |
886a2506 | 2808 | { |
4670103e | 2809 | offsetT min = 0, max = 0; |
ea1562b3 | 2810 | |
4670103e CZ |
2811 | if (operand->bits != 32 |
2812 | && !(operand->flags & ARC_OPERAND_NCHK) | |
2813 | && !(operand->flags & ARC_OPERAND_FAKE)) | |
886a2506 | 2814 | { |
4670103e CZ |
2815 | if (operand->flags & ARC_OPERAND_SIGNED) |
2816 | { | |
2817 | max = (1 << (operand->bits - 1)) - 1; | |
2818 | min = -(1 << (operand->bits - 1)); | |
2819 | } | |
2820 | else | |
2821 | { | |
2822 | max = (1 << operand->bits) - 1; | |
2823 | min = 0; | |
2824 | } | |
886a2506 | 2825 | |
4670103e CZ |
2826 | if (val < min || val > max) |
2827 | as_bad_value_out_of_range (_("operand"), | |
2828 | val, min, max, file, line); | |
2829 | } | |
ea1562b3 | 2830 | |
cc07cda6 | 2831 | pr_debug ("insert field: %ld <= %lld <= %ld in 0x%08llx\n", |
4670103e | 2832 | min, val, max, insn); |
ea1562b3 | 2833 | |
4670103e CZ |
2834 | if ((operand->flags & ARC_OPERAND_ALIGNED32) |
2835 | && (val & 0x03)) | |
2836 | as_bad_where (file, line, | |
2837 | _("Unaligned operand. Needs to be 32bit aligned")); | |
ea1562b3 | 2838 | |
4670103e CZ |
2839 | if ((operand->flags & ARC_OPERAND_ALIGNED16) |
2840 | && (val & 0x01)) | |
2841 | as_bad_where (file, line, | |
2842 | _("Unaligned operand. Needs to be 16bit aligned")); | |
ea1562b3 | 2843 | |
4670103e CZ |
2844 | if (operand->insert) |
2845 | { | |
2846 | const char *errmsg = NULL; | |
ea1562b3 | 2847 | |
4670103e CZ |
2848 | insn = (*operand->insert) (insn, val, &errmsg); |
2849 | if (errmsg) | |
2850 | as_warn_where (file, line, "%s", errmsg); | |
2851 | } | |
2852 | else | |
2853 | { | |
2854 | if (operand->flags & ARC_OPERAND_TRUNCATE) | |
2855 | { | |
2856 | if (operand->flags & ARC_OPERAND_ALIGNED32) | |
2857 | val >>= 2; | |
2858 | if (operand->flags & ARC_OPERAND_ALIGNED16) | |
2859 | val >>= 1; | |
886a2506 | 2860 | } |
4670103e CZ |
2861 | insn |= ((val & ((1 << operand->bits) - 1)) << operand->shift); |
2862 | } | |
2863 | return insn; | |
2864 | } | |
ea1562b3 | 2865 | |
4670103e CZ |
2866 | /* Apply a fixup to the object code. At this point all symbol values |
2867 | should be fully resolved, and we attempt to completely resolve the | |
2868 | reloc. If we can not do that, we determine the correct reloc code | |
2869 | and put it back in the fixup. To indicate that a fixup has been | |
2870 | eliminated, set fixP->fx_done. */ | |
ea1562b3 | 2871 | |
4670103e CZ |
2872 | void |
2873 | md_apply_fix (fixS *fixP, | |
2874 | valueT *valP, | |
2875 | segT seg) | |
2876 | { | |
2877 | char * const fixpos = fixP->fx_frag->fr_literal + fixP->fx_where; | |
2878 | valueT value = *valP; | |
2879 | unsigned insn = 0; | |
2880 | symbolS *fx_addsy, *fx_subsy; | |
2881 | offsetT fx_offset; | |
2882 | segT add_symbol_segment = absolute_section; | |
2883 | segT sub_symbol_segment = absolute_section; | |
2884 | const struct arc_operand *operand = NULL; | |
2885 | extended_bfd_reloc_code_real_type reloc; | |
886a2506 | 2886 | |
4670103e CZ |
2887 | pr_debug ("%s:%u: apply_fix: r_type=%d (%s) value=0x%lX offset=0x%lX\n", |
2888 | fixP->fx_file, fixP->fx_line, fixP->fx_r_type, | |
2889 | ((int) fixP->fx_r_type < 0) ? "Internal": | |
2890 | bfd_get_reloc_code_name (fixP->fx_r_type), value, | |
2891 | fixP->fx_offset); | |
886a2506 | 2892 | |
4670103e CZ |
2893 | fx_addsy = fixP->fx_addsy; |
2894 | fx_subsy = fixP->fx_subsy; | |
2895 | fx_offset = 0; | |
886a2506 | 2896 | |
4670103e CZ |
2897 | if (fx_addsy) |
2898 | { | |
2899 | add_symbol_segment = S_GET_SEGMENT (fx_addsy); | |
886a2506 NC |
2900 | } |
2901 | ||
4670103e CZ |
2902 | if (fx_subsy |
2903 | && fixP->fx_r_type != BFD_RELOC_ARC_TLS_DTPOFF | |
2904 | && fixP->fx_r_type != BFD_RELOC_ARC_TLS_DTPOFF_S9 | |
2905 | && fixP->fx_r_type != BFD_RELOC_ARC_TLS_GD_LD) | |
2906 | { | |
2907 | resolve_symbol_value (fx_subsy); | |
2908 | sub_symbol_segment = S_GET_SEGMENT (fx_subsy); | |
886a2506 | 2909 | |
4670103e CZ |
2910 | if (sub_symbol_segment == absolute_section) |
2911 | { | |
2912 | /* The symbol is really a constant. */ | |
2913 | fx_offset -= S_GET_VALUE (fx_subsy); | |
2914 | fx_subsy = NULL; | |
2915 | } | |
2916 | else | |
2917 | { | |
2918 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2919 | _("can't resolve `%s' {%s section} - `%s' {%s section}"), | |
2920 | fx_addsy ? S_GET_NAME (fx_addsy) : "0", | |
2921 | segment_name (add_symbol_segment), | |
2922 | S_GET_NAME (fx_subsy), | |
2923 | segment_name (sub_symbol_segment)); | |
2924 | return; | |
2925 | } | |
2926 | } | |
886a2506 | 2927 | |
4670103e CZ |
2928 | if (fx_addsy |
2929 | && !S_IS_WEAK (fx_addsy)) | |
2930 | { | |
2931 | if (add_symbol_segment == seg | |
2932 | && fixP->fx_pcrel) | |
2933 | { | |
2934 | value += S_GET_VALUE (fx_addsy); | |
2935 | value -= md_pcrel_from_section (fixP, seg); | |
2936 | fx_addsy = NULL; | |
2937 | fixP->fx_pcrel = FALSE; | |
2938 | } | |
2939 | else if (add_symbol_segment == absolute_section) | |
2940 | { | |
2941 | value = fixP->fx_offset; | |
2942 | fx_offset += S_GET_VALUE (fixP->fx_addsy); | |
2943 | fx_addsy = NULL; | |
2944 | fixP->fx_pcrel = FALSE; | |
2945 | } | |
2946 | } | |
886a2506 | 2947 | |
4670103e CZ |
2948 | if (!fx_addsy) |
2949 | fixP->fx_done = TRUE; | |
886a2506 | 2950 | |
4670103e | 2951 | if (fixP->fx_pcrel) |
886a2506 | 2952 | { |
4670103e CZ |
2953 | if (fx_addsy |
2954 | && ((S_IS_DEFINED (fx_addsy) | |
2955 | && S_GET_SEGMENT (fx_addsy) != seg) | |
2956 | || S_IS_WEAK (fx_addsy))) | |
2957 | value += md_pcrel_from_section (fixP, seg); | |
886a2506 | 2958 | |
4670103e CZ |
2959 | switch (fixP->fx_r_type) |
2960 | { | |
2961 | case BFD_RELOC_ARC_32_ME: | |
2962 | /* This is a pc-relative value in a LIMM. Adjust it to the | |
2963 | address of the instruction not to the address of the | |
33eaf5de | 2964 | LIMM. Note: it is not any longer valid this affirmation as |
4670103e CZ |
2965 | the linker consider ARC_PC32 a fixup to entire 64 bit |
2966 | insn. */ | |
2967 | fixP->fx_offset += fixP->fx_frag->fr_address; | |
2968 | /* Fall through. */ | |
2969 | case BFD_RELOC_32: | |
2970 | fixP->fx_r_type = BFD_RELOC_ARC_PC32; | |
2971 | /* Fall through. */ | |
2972 | case BFD_RELOC_ARC_PC32: | |
2973 | /* fixP->fx_offset += fixP->fx_where - fixP->fx_dot_value; */ | |
886a2506 NC |
2974 | break; |
2975 | default: | |
4670103e | 2976 | if ((int) fixP->fx_r_type < 0) |
6e3f3473 | 2977 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2978 | _("PC relative relocation not allowed for (internal)" | |
2979 | " type %d"), | |
2980 | fixP->fx_r_type); | |
886a2506 | 2981 | break; |
ea1562b3 NC |
2982 | } |
2983 | } | |
2984 | ||
4670103e CZ |
2985 | pr_debug ("%s:%u: apply_fix: r_type=%d (%s) value=0x%lX offset=0x%lX\n", |
2986 | fixP->fx_file, fixP->fx_line, fixP->fx_r_type, | |
2987 | ((int) fixP->fx_r_type < 0) ? "Internal": | |
2988 | bfd_get_reloc_code_name (fixP->fx_r_type), value, | |
2989 | fixP->fx_offset); | |
886a2506 | 2990 | |
886a2506 | 2991 | |
4670103e CZ |
2992 | /* Now check for TLS relocations. */ |
2993 | reloc = fixP->fx_r_type; | |
2994 | switch (reloc) | |
886a2506 | 2995 | { |
4670103e CZ |
2996 | case BFD_RELOC_ARC_TLS_DTPOFF: |
2997 | case BFD_RELOC_ARC_TLS_LE_32: | |
2998 | if (fixP->fx_done) | |
2999 | break; | |
3000 | /* Fall through. */ | |
3001 | case BFD_RELOC_ARC_TLS_GD_GOT: | |
3002 | case BFD_RELOC_ARC_TLS_IE_GOT: | |
3003 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
3004 | break; | |
886a2506 | 3005 | |
4670103e CZ |
3006 | case BFD_RELOC_ARC_TLS_GD_LD: |
3007 | gas_assert (!fixP->fx_offset); | |
3008 | if (fixP->fx_subsy) | |
3009 | fixP->fx_offset | |
3010 | = (S_GET_VALUE (fixP->fx_subsy) | |
3011 | - fixP->fx_frag->fr_address- fixP->fx_where); | |
3012 | fixP->fx_subsy = NULL; | |
3013 | /* Fall through. */ | |
3014 | case BFD_RELOC_ARC_TLS_GD_CALL: | |
3015 | /* These two relocs are there just to allow ld to change the tls | |
3016 | model for this symbol, by patching the code. The offset - | |
3017 | and scale, if any - will be installed by the linker. */ | |
3018 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
3019 | break; | |
886a2506 | 3020 | |
4670103e CZ |
3021 | case BFD_RELOC_ARC_TLS_LE_S9: |
3022 | case BFD_RELOC_ARC_TLS_DTPOFF_S9: | |
3023 | as_bad (_("TLS_*_S9 relocs are not supported yet")); | |
3024 | break; | |
3025 | ||
3026 | default: | |
3027 | break; | |
886a2506 NC |
3028 | } |
3029 | ||
4670103e | 3030 | if (!fixP->fx_done) |
886a2506 | 3031 | { |
4670103e | 3032 | return; |
886a2506 | 3033 | } |
886a2506 | 3034 | |
33eaf5de | 3035 | /* Adjust the value if we have a constant. */ |
4670103e | 3036 | value += fx_offset; |
886a2506 | 3037 | |
4670103e CZ |
3038 | /* For hosts with longs bigger than 32-bits make sure that the top |
3039 | bits of a 32-bit negative value read in by the parser are set, | |
3040 | so that the correct comparisons are made. */ | |
3041 | if (value & 0x80000000) | |
69c9e028 | 3042 | value |= (-1UL << 31); |
886a2506 | 3043 | |
4670103e CZ |
3044 | reloc = fixP->fx_r_type; |
3045 | switch (reloc) | |
3046 | { | |
3047 | case BFD_RELOC_8: | |
3048 | case BFD_RELOC_16: | |
3049 | case BFD_RELOC_24: | |
3050 | case BFD_RELOC_32: | |
3051 | case BFD_RELOC_64: | |
3052 | case BFD_RELOC_ARC_32_PCREL: | |
3053 | md_number_to_chars (fixpos, value, fixP->fx_size); | |
3054 | return; | |
886a2506 | 3055 | |
4670103e CZ |
3056 | case BFD_RELOC_ARC_GOTPC32: |
3057 | /* I cannot fix an GOTPC relocation because I need to relax it | |
3058 | from ld rx,[pcl,@sym@gotpc] to add rx,pcl,@sym@gotpc. */ | |
3059 | as_bad (_("Unsupported operation on reloc")); | |
3060 | return; | |
886a2506 | 3061 | |
4670103e CZ |
3062 | case BFD_RELOC_ARC_TLS_DTPOFF: |
3063 | case BFD_RELOC_ARC_TLS_LE_32: | |
3064 | gas_assert (!fixP->fx_addsy); | |
3065 | gas_assert (!fixP->fx_subsy); | |
1a0670f3 | 3066 | /* Fall through. */ |
886a2506 | 3067 | |
4670103e CZ |
3068 | case BFD_RELOC_ARC_GOTOFF: |
3069 | case BFD_RELOC_ARC_32_ME: | |
3070 | case BFD_RELOC_ARC_PC32: | |
3071 | md_number_to_chars_midend (fixpos, value, fixP->fx_size); | |
3072 | return; | |
886a2506 | 3073 | |
4670103e CZ |
3074 | case BFD_RELOC_ARC_PLT32: |
3075 | md_number_to_chars_midend (fixpos, value, fixP->fx_size); | |
3076 | return; | |
886a2506 | 3077 | |
4670103e CZ |
3078 | case BFD_RELOC_ARC_S25H_PCREL_PLT: |
3079 | reloc = BFD_RELOC_ARC_S25W_PCREL; | |
3080 | goto solve_plt; | |
886a2506 | 3081 | |
4670103e CZ |
3082 | case BFD_RELOC_ARC_S21H_PCREL_PLT: |
3083 | reloc = BFD_RELOC_ARC_S21H_PCREL; | |
3084 | goto solve_plt; | |
886a2506 | 3085 | |
4670103e CZ |
3086 | case BFD_RELOC_ARC_S25W_PCREL_PLT: |
3087 | reloc = BFD_RELOC_ARC_S25W_PCREL; | |
3088 | goto solve_plt; | |
886a2506 | 3089 | |
4670103e CZ |
3090 | case BFD_RELOC_ARC_S21W_PCREL_PLT: |
3091 | reloc = BFD_RELOC_ARC_S21W_PCREL; | |
1a0670f3 | 3092 | /* Fall through. */ |
886a2506 | 3093 | |
4670103e CZ |
3094 | case BFD_RELOC_ARC_S25W_PCREL: |
3095 | case BFD_RELOC_ARC_S21W_PCREL: | |
3096 | case BFD_RELOC_ARC_S21H_PCREL: | |
3097 | case BFD_RELOC_ARC_S25H_PCREL: | |
3098 | case BFD_RELOC_ARC_S13_PCREL: | |
3099 | solve_plt: | |
3100 | operand = find_operand_for_reloc (reloc); | |
3101 | gas_assert (operand); | |
886a2506 NC |
3102 | break; |
3103 | ||
3104 | default: | |
4670103e CZ |
3105 | { |
3106 | if ((int) fixP->fx_r_type >= 0) | |
3107 | as_fatal (_("unhandled relocation type %s"), | |
3108 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
886a2506 | 3109 | |
4670103e CZ |
3110 | /* The rest of these fixups needs to be completely resolved as |
3111 | constants. */ | |
3112 | if (fixP->fx_addsy != 0 | |
3113 | && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) | |
3114 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3115 | _("non-absolute expression in constant field")); | |
886a2506 | 3116 | |
4670103e CZ |
3117 | gas_assert (-(int) fixP->fx_r_type < (int) arc_num_operands); |
3118 | operand = &arc_operands[-(int) fixP->fx_r_type]; | |
3119 | break; | |
3120 | } | |
3121 | } | |
886a2506 | 3122 | |
4670103e | 3123 | if (target_big_endian) |
886a2506 | 3124 | { |
4670103e | 3125 | switch (fixP->fx_size) |
886a2506 | 3126 | { |
4670103e CZ |
3127 | case 4: |
3128 | insn = bfd_getb32 (fixpos); | |
3129 | break; | |
3130 | case 2: | |
3131 | insn = bfd_getb16 (fixpos); | |
3132 | break; | |
3133 | default: | |
3134 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3135 | _("unknown fixup size")); | |
3136 | } | |
3137 | } | |
3138 | else | |
3139 | { | |
3140 | insn = 0; | |
3141 | switch (fixP->fx_size) | |
3142 | { | |
3143 | case 4: | |
3144 | insn = bfd_getl16 (fixpos) << 16 | bfd_getl16 (fixpos + 2); | |
3145 | break; | |
3146 | case 2: | |
3147 | insn = bfd_getl16 (fixpos); | |
3148 | break; | |
3149 | default: | |
3150 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3151 | _("unknown fixup size")); | |
886a2506 NC |
3152 | } |
3153 | } | |
886a2506 | 3154 | |
4670103e CZ |
3155 | insn = insert_operand (insn, operand, (offsetT) value, |
3156 | fixP->fx_file, fixP->fx_line); | |
886a2506 | 3157 | |
4670103e CZ |
3158 | md_number_to_chars_midend (fixpos, insn, fixP->fx_size); |
3159 | } | |
886a2506 | 3160 | |
4670103e | 3161 | /* Prepare machine-dependent frags for relaxation. |
886a2506 | 3162 | |
4670103e CZ |
3163 | Called just before relaxation starts. Any symbol that is now undefined |
3164 | will not become defined. | |
886a2506 | 3165 | |
4670103e | 3166 | Return the correct fr_subtype in the frag. |
886a2506 | 3167 | |
4670103e CZ |
3168 | Return the initial "guess for fr_var" to caller. The guess for fr_var |
3169 | is *actually* the growth beyond fr_fix. Whatever we do to grow fr_fix | |
3170 | or fr_var contributes to our returned value. | |
886a2506 | 3171 | |
4670103e CZ |
3172 | Although it may not be explicit in the frag, pretend |
3173 | fr_var starts with a value. */ | |
886a2506 | 3174 | |
4670103e CZ |
3175 | int |
3176 | md_estimate_size_before_relax (fragS *fragP, | |
3177 | segT segment) | |
3178 | { | |
3179 | int growth; | |
3180 | ||
3181 | /* If the symbol is not located within the same section AND it's not | |
3182 | an absolute section, use the maximum. OR if the symbol is a | |
3183 | constant AND the insn is by nature not pc-rel, use the maximum. | |
3184 | OR if the symbol is being equated against another symbol, use the | |
3185 | maximum. OR if the symbol is weak use the maximum. */ | |
3186 | if ((S_GET_SEGMENT (fragP->fr_symbol) != segment | |
3187 | && S_GET_SEGMENT (fragP->fr_symbol) != absolute_section) | |
3188 | || (symbol_constant_p (fragP->fr_symbol) | |
3189 | && !fragP->tc_frag_data.pcrel) | |
3190 | || symbol_equated_p (fragP->fr_symbol) | |
3191 | || S_IS_WEAK (fragP->fr_symbol)) | |
3192 | { | |
3193 | while (md_relax_table[fragP->fr_subtype].rlx_more != ARC_RLX_NONE) | |
3194 | ++fragP->fr_subtype; | |
3195 | } | |
886a2506 | 3196 | |
4670103e CZ |
3197 | growth = md_relax_table[fragP->fr_subtype].rlx_length; |
3198 | fragP->fr_var = growth; | |
886a2506 | 3199 | |
4670103e CZ |
3200 | pr_debug ("%s:%d: md_estimate_size_before_relax: %d\n", |
3201 | fragP->fr_file, fragP->fr_line, growth); | |
886a2506 | 3202 | |
4670103e CZ |
3203 | return growth; |
3204 | } | |
886a2506 | 3205 | |
4670103e CZ |
3206 | /* Translate internal representation of relocation info to BFD target |
3207 | format. */ | |
886a2506 | 3208 | |
4670103e CZ |
3209 | arelent * |
3210 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, | |
3211 | fixS *fixP) | |
3212 | { | |
3213 | arelent *reloc; | |
3214 | bfd_reloc_code_real_type code; | |
886a2506 | 3215 | |
add39d23 TS |
3216 | reloc = XNEW (arelent); |
3217 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
4670103e CZ |
3218 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy); |
3219 | reloc->address = fixP->fx_frag->fr_address + fixP->fx_where; | |
886a2506 | 3220 | |
4670103e CZ |
3221 | /* Make sure none of our internal relocations make it this far. |
3222 | They'd better have been fully resolved by this point. */ | |
3223 | gas_assert ((int) fixP->fx_r_type > 0); | |
886a2506 | 3224 | |
4670103e | 3225 | code = fixP->fx_r_type; |
886a2506 | 3226 | |
4670103e CZ |
3227 | /* if we have something like add gp, pcl, |
3228 | _GLOBAL_OFFSET_TABLE_@gotpc. */ | |
3229 | if (code == BFD_RELOC_ARC_GOTPC32 | |
3230 | && GOT_symbol | |
3231 | && fixP->fx_addsy == GOT_symbol) | |
3232 | code = BFD_RELOC_ARC_GOTPC; | |
886a2506 | 3233 | |
4670103e CZ |
3234 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); |
3235 | if (reloc->howto == NULL) | |
886a2506 | 3236 | { |
4670103e CZ |
3237 | as_bad_where (fixP->fx_file, fixP->fx_line, |
3238 | _("cannot represent `%s' relocation in object file"), | |
3239 | bfd_get_reloc_code_name (code)); | |
3240 | return NULL; | |
3241 | } | |
886a2506 | 3242 | |
4670103e CZ |
3243 | if (!fixP->fx_pcrel != !reloc->howto->pc_relative) |
3244 | as_fatal (_("internal error? cannot generate `%s' relocation"), | |
3245 | bfd_get_reloc_code_name (code)); | |
886a2506 | 3246 | |
4670103e | 3247 | gas_assert (!fixP->fx_pcrel == !reloc->howto->pc_relative); |
886a2506 | 3248 | |
05bbf016 | 3249 | reloc->addend = fixP->fx_offset; |
4670103e CZ |
3250 | |
3251 | return reloc; | |
886a2506 NC |
3252 | } |
3253 | ||
4670103e CZ |
3254 | /* Perform post-processing of machine-dependent frags after relaxation. |
3255 | Called after relaxation is finished. | |
3256 | In: Address of frag. | |
3257 | fr_type == rs_machine_dependent. | |
3258 | fr_subtype is what the address relaxed to. | |
886a2506 | 3259 | |
4670103e CZ |
3260 | Out: Any fixS:s and constants are set up. */ |
3261 | ||
3262 | void | |
3263 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, | |
3264 | segT segment ATTRIBUTE_UNUSED, | |
3265 | fragS *fragP) | |
886a2506 | 3266 | { |
4670103e CZ |
3267 | const relax_typeS *table_entry; |
3268 | char *dest; | |
3269 | const struct arc_opcode *opcode; | |
3270 | struct arc_insn insn; | |
3271 | int size, fix; | |
3272 | struct arc_relax_type *relax_arg = &fragP->tc_frag_data; | |
886a2506 | 3273 | |
871a6bd2 | 3274 | fix = fragP->fr_fix; |
4670103e CZ |
3275 | dest = fragP->fr_literal + fix; |
3276 | table_entry = TC_GENERIC_RELAX_TABLE + fragP->fr_subtype; | |
886a2506 | 3277 | |
9e32d9ae AB |
3278 | pr_debug ("%s:%d: md_convert_frag, subtype: %d, fix: %d, " |
3279 | "var: %"BFD_VMA_FMT"d\n", | |
4670103e CZ |
3280 | fragP->fr_file, fragP->fr_line, |
3281 | fragP->fr_subtype, fix, fragP->fr_var); | |
886a2506 | 3282 | |
4670103e CZ |
3283 | if (fragP->fr_subtype <= 0 |
3284 | && fragP->fr_subtype >= arc_num_relax_opcodes) | |
3285 | as_fatal (_("no relaxation found for this instruction.")); | |
886a2506 | 3286 | |
4670103e | 3287 | opcode = &arc_relax_opcodes[fragP->fr_subtype]; |
886a2506 | 3288 | |
4670103e CZ |
3289 | assemble_insn (opcode, relax_arg->tok, relax_arg->ntok, relax_arg->pflags, |
3290 | relax_arg->nflg, &insn); | |
886a2506 | 3291 | |
4670103e | 3292 | apply_fixups (&insn, fragP, fix); |
886a2506 | 3293 | |
91fdca6f | 3294 | size = insn.len + (insn.has_limm ? 4 : 0); |
4670103e CZ |
3295 | gas_assert (table_entry->rlx_length == size); |
3296 | emit_insn0 (&insn, dest, TRUE); | |
886a2506 | 3297 | |
4670103e CZ |
3298 | fragP->fr_fix += table_entry->rlx_length; |
3299 | fragP->fr_var = 0; | |
886a2506 NC |
3300 | } |
3301 | ||
4670103e CZ |
3302 | /* We have no need to default values of symbols. We could catch |
3303 | register names here, but that is handled by inserting them all in | |
3304 | the symbol table to begin with. */ | |
886a2506 | 3305 | |
4670103e CZ |
3306 | symbolS * |
3307 | md_undefined_symbol (char *name) | |
886a2506 | 3308 | { |
4670103e CZ |
3309 | /* The arc abi demands that a GOT[0] should be referencible as |
3310 | [pc+_DYNAMIC@gotpc]. Hence we convert a _DYNAMIC@gotpc to a | |
3311 | GOTPC reference to _GLOBAL_OFFSET_TABLE_. */ | |
3312 | if (((*name == '_') | |
3313 | && (*(name+1) == 'G') | |
7ef0acc1 | 3314 | && (strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0))) |
886a2506 | 3315 | { |
4670103e CZ |
3316 | if (!GOT_symbol) |
3317 | { | |
3318 | if (symbol_find (name)) | |
3319 | as_bad ("GOT already in symbol table"); | |
3320 | ||
3321 | GOT_symbol = symbol_new (GLOBAL_OFFSET_TABLE_NAME, undefined_section, | |
3322 | (valueT) 0, &zero_address_frag); | |
3323 | }; | |
3324 | return GOT_symbol; | |
886a2506 | 3325 | } |
4670103e | 3326 | return NULL; |
886a2506 NC |
3327 | } |
3328 | ||
4670103e CZ |
3329 | /* Turn a string in input_line_pointer into a floating point constant |
3330 | of type type, and store the appropriate bytes in *litP. The number | |
3331 | of LITTLENUMS emitted is stored in *sizeP. An error message is | |
3332 | returned, or NULL on OK. */ | |
886a2506 | 3333 | |
6d4af3c2 | 3334 | const char * |
4670103e | 3335 | md_atof (int type, char *litP, int *sizeP) |
886a2506 | 3336 | { |
4670103e CZ |
3337 | return ieee_md_atof (type, litP, sizeP, target_big_endian); |
3338 | } | |
886a2506 | 3339 | |
4670103e CZ |
3340 | /* Called for any expression that can not be recognized. When the |
3341 | function is called, `input_line_pointer' will point to the start of | |
3342 | the expression. */ | |
886a2506 | 3343 | |
4670103e CZ |
3344 | void |
3345 | md_operand (expressionS *expressionP ATTRIBUTE_UNUSED) | |
3346 | { | |
3347 | char *p = input_line_pointer; | |
3348 | if (*p == '@') | |
886a2506 | 3349 | { |
4670103e CZ |
3350 | input_line_pointer++; |
3351 | expressionP->X_op = O_symbol; | |
3352 | expression (expressionP); | |
3353 | } | |
3354 | } | |
886a2506 | 3355 | |
4670103e CZ |
3356 | /* This function is called from the function 'expression', it attempts |
3357 | to parse special names (in our case register names). It fills in | |
3358 | the expression with the identified register. It returns TRUE if | |
3359 | it is a register and FALSE otherwise. */ | |
886a2506 | 3360 | |
4670103e CZ |
3361 | bfd_boolean |
3362 | arc_parse_name (const char *name, | |
3363 | struct expressionS *e) | |
3364 | { | |
3365 | struct symbol *sym; | |
886a2506 | 3366 | |
4670103e CZ |
3367 | if (!assembling_insn) |
3368 | return FALSE; | |
886a2506 | 3369 | |
08ec958f | 3370 | if (e->X_op == O_symbol) |
4670103e | 3371 | return FALSE; |
886a2506 | 3372 | |
4670103e CZ |
3373 | sym = hash_find (arc_reg_hash, name); |
3374 | if (sym) | |
3375 | { | |
3376 | e->X_op = O_register; | |
3377 | e->X_add_number = S_GET_VALUE (sym); | |
3378 | return TRUE; | |
3379 | } | |
db18dbab GM |
3380 | |
3381 | sym = hash_find (arc_addrtype_hash, name); | |
3382 | if (sym) | |
3383 | { | |
3384 | e->X_op = O_addrtype; | |
3385 | e->X_add_number = S_GET_VALUE (sym); | |
3386 | return TRUE; | |
3387 | } | |
3388 | ||
4670103e CZ |
3389 | return FALSE; |
3390 | } | |
886a2506 | 3391 | |
4670103e CZ |
3392 | /* md_parse_option |
3393 | Invocation line includes a switch not recognized by the base assembler. | |
3394 | See if it's a processor-specific option. | |
886a2506 | 3395 | |
4670103e | 3396 | New options (supported) are: |
886a2506 | 3397 | |
4670103e CZ |
3398 | -mcpu=<cpu name> Assemble for selected processor |
3399 | -EB/-mbig-endian Big-endian | |
3400 | -EL/-mlittle-endian Little-endian | |
3401 | -mrelax Enable relaxation | |
886a2506 | 3402 | |
4670103e | 3403 | The following CPU names are recognized: |
ce440d63 | 3404 | arc600, arc700, arcem, archs, nps400. */ |
886a2506 | 3405 | |
4670103e | 3406 | int |
17b9d67d | 3407 | md_parse_option (int c, const char *arg ATTRIBUTE_UNUSED) |
4670103e | 3408 | { |
4670103e CZ |
3409 | switch (c) |
3410 | { | |
3411 | case OPTION_ARC600: | |
3412 | case OPTION_ARC601: | |
3413 | return md_parse_option (OPTION_MCPU, "arc600"); | |
886a2506 | 3414 | |
4670103e CZ |
3415 | case OPTION_ARC700: |
3416 | return md_parse_option (OPTION_MCPU, "arc700"); | |
886a2506 | 3417 | |
4670103e CZ |
3418 | case OPTION_ARCEM: |
3419 | return md_parse_option (OPTION_MCPU, "arcem"); | |
886a2506 | 3420 | |
4670103e CZ |
3421 | case OPTION_ARCHS: |
3422 | return md_parse_option (OPTION_MCPU, "archs"); | |
886a2506 | 3423 | |
4670103e CZ |
3424 | case OPTION_MCPU: |
3425 | { | |
bb65a718 | 3426 | arc_select_cpu (arg, MACH_SELECTION_FROM_COMMAND_LINE); |
4670103e CZ |
3427 | break; |
3428 | } | |
886a2506 | 3429 | |
4670103e CZ |
3430 | case OPTION_EB: |
3431 | arc_target_format = "elf32-bigarc"; | |
3432 | byte_order = BIG_ENDIAN; | |
3433 | break; | |
886a2506 | 3434 | |
4670103e CZ |
3435 | case OPTION_EL: |
3436 | arc_target_format = "elf32-littlearc"; | |
3437 | byte_order = LITTLE_ENDIAN; | |
3438 | break; | |
886a2506 | 3439 | |
4670103e | 3440 | case OPTION_CD: |
53a346d8 CZ |
3441 | selected_cpu.features |= CD; |
3442 | cl_features |= CD; | |
bb050a69 | 3443 | arc_check_feature (); |
4670103e | 3444 | break; |
886a2506 | 3445 | |
4670103e CZ |
3446 | case OPTION_RELAX: |
3447 | relaxation_state = 1; | |
3448 | break; | |
886a2506 | 3449 | |
bdd582db | 3450 | case OPTION_NPS400: |
53a346d8 CZ |
3451 | selected_cpu.features |= NPS400; |
3452 | cl_features |= NPS400; | |
bb050a69 | 3453 | arc_check_feature (); |
ce440d63 | 3454 | break; |
bdd582db | 3455 | |
ce440d63 | 3456 | case OPTION_SPFP: |
53a346d8 CZ |
3457 | selected_cpu.features |= SPX; |
3458 | cl_features |= SPX; | |
bb050a69 | 3459 | arc_check_feature (); |
ce440d63 GM |
3460 | break; |
3461 | ||
3462 | case OPTION_DPFP: | |
53a346d8 CZ |
3463 | selected_cpu.features |= DPX; |
3464 | cl_features |= DPX; | |
bb050a69 | 3465 | arc_check_feature (); |
ce440d63 GM |
3466 | break; |
3467 | ||
3468 | case OPTION_FPUDA: | |
53a346d8 CZ |
3469 | selected_cpu.features |= DPA; |
3470 | cl_features |= DPA; | |
bb050a69 | 3471 | arc_check_feature (); |
ce440d63 GM |
3472 | break; |
3473 | ||
3474 | /* Dummy options are accepted but have no effect. */ | |
4670103e CZ |
3475 | case OPTION_USER_MODE: |
3476 | case OPTION_LD_EXT_MASK: | |
3477 | case OPTION_SWAP: | |
3478 | case OPTION_NORM: | |
3479 | case OPTION_BARREL_SHIFT: | |
3480 | case OPTION_MIN_MAX: | |
3481 | case OPTION_NO_MPY: | |
3482 | case OPTION_EA: | |
3483 | case OPTION_MUL64: | |
3484 | case OPTION_SIMD: | |
4670103e CZ |
3485 | case OPTION_XMAC_D16: |
3486 | case OPTION_XMAC_24: | |
3487 | case OPTION_DSP_PACKA: | |
3488 | case OPTION_CRC: | |
3489 | case OPTION_DVBF: | |
3490 | case OPTION_TELEPHONY: | |
3491 | case OPTION_XYMEMORY: | |
3492 | case OPTION_LOCK: | |
3493 | case OPTION_SWAPE: | |
3494 | case OPTION_RTSC: | |
8ddf6b2a CZ |
3495 | break; |
3496 | ||
4670103e CZ |
3497 | default: |
3498 | return 0; | |
3499 | } | |
886a2506 | 3500 | |
4670103e CZ |
3501 | return 1; |
3502 | } | |
886a2506 | 3503 | |
a9752fdf CZ |
3504 | /* Display the list of cpu names for use in the help text. */ |
3505 | ||
3506 | static void | |
3507 | arc_show_cpu_list (FILE *stream) | |
3508 | { | |
3509 | int i, offset; | |
731f7c4e | 3510 | static const char *space_buf = " "; |
a9752fdf | 3511 | |
731f7c4e MR |
3512 | fprintf (stream, "%s", space_buf); |
3513 | offset = strlen (space_buf); | |
a9752fdf CZ |
3514 | for (i = 0; cpu_types[i].name != NULL; ++i) |
3515 | { | |
3516 | bfd_boolean last = (cpu_types[i + 1].name == NULL); | |
3517 | ||
3518 | /* If displaying the new cpu name string, and the ', ' (for all | |
3519 | but the last one) will take us past a target width of 80 | |
3520 | characters, then it's time for a new line. */ | |
3521 | if (offset + strlen (cpu_types[i].name) + (last ? 0 : 2) > 80) | |
3522 | { | |
731f7c4e MR |
3523 | fprintf (stream, "\n%s", space_buf); |
3524 | offset = strlen (space_buf); | |
a9752fdf CZ |
3525 | } |
3526 | ||
3527 | fprintf (stream, "%s%s", cpu_types[i].name, (last ? "\n" : ", ")); | |
3528 | offset += strlen (cpu_types [i].name) + (last ? 0 : 2); | |
3529 | } | |
3530 | } | |
3531 | ||
4670103e CZ |
3532 | void |
3533 | md_show_usage (FILE *stream) | |
3534 | { | |
3535 | fprintf (stream, _("ARC-specific assembler options:\n")); | |
886a2506 | 3536 | |
a9752fdf CZ |
3537 | fprintf (stream, " -mcpu=<cpu name>\t (default: %s), assemble for" |
3538 | " CPU <cpu name>, one of:\n", TARGET_WITH_CPU); | |
3539 | arc_show_cpu_list (stream); | |
3540 | fprintf (stream, "\n"); | |
bdd582db GM |
3541 | fprintf (stream, " -mA6/-mARC600/-mARC601 same as -mcpu=arc600\n"); |
3542 | fprintf (stream, " -mA7/-mARC700\t\t same as -mcpu=arc700\n"); | |
3543 | fprintf (stream, " -mEM\t\t\t same as -mcpu=arcem\n"); | |
3544 | fprintf (stream, " -mHS\t\t\t same as -mcpu=archs\n"); | |
3545 | ||
3546 | fprintf (stream, " -mnps400\t\t enable NPS-400 extended instructions\n"); | |
a9752fdf CZ |
3547 | fprintf (stream, " -mspfp\t\t enable single-precision floating point" |
3548 | " instructions\n"); | |
3549 | fprintf (stream, " -mdpfp\t\t enable double-precision floating point" | |
3550 | " instructions\n"); | |
bdd582db GM |
3551 | fprintf (stream, " -mfpuda\t\t enable double-precision assist floating " |
3552 | "point\n\t\t\t instructions for ARC EM\n"); | |
3553 | ||
4670103e CZ |
3554 | fprintf (stream, |
3555 | " -mcode-density\t enable code density option for ARC EM\n"); | |
3556 | ||
3557 | fprintf (stream, _("\ | |
3558 | -EB assemble code for a big-endian cpu\n")); | |
3559 | fprintf (stream, _("\ | |
3560 | -EL assemble code for a little-endian cpu\n")); | |
3561 | fprintf (stream, _("\ | |
bdd582db GM |
3562 | -mrelax enable relaxation\n")); |
3563 | ||
3564 | fprintf (stream, _("The following ARC-specific assembler options are " | |
3565 | "deprecated and are accepted\nfor compatibility only:\n")); | |
3566 | ||
3567 | fprintf (stream, _(" -mEA\n" | |
3568 | " -mbarrel-shifter\n" | |
3569 | " -mbarrel_shifter\n" | |
3570 | " -mcrc\n" | |
3571 | " -mdsp-packa\n" | |
3572 | " -mdsp_packa\n" | |
3573 | " -mdvbf\n" | |
3574 | " -mld-extension-reg-mask\n" | |
3575 | " -mlock\n" | |
3576 | " -mmac-24\n" | |
3577 | " -mmac-d16\n" | |
3578 | " -mmac_24\n" | |
3579 | " -mmac_d16\n" | |
3580 | " -mmin-max\n" | |
3581 | " -mmin_max\n" | |
3582 | " -mmul64\n" | |
3583 | " -mno-mpy\n" | |
3584 | " -mnorm\n" | |
3585 | " -mrtsc\n" | |
3586 | " -msimd\n" | |
3587 | " -mswap\n" | |
3588 | " -mswape\n" | |
3589 | " -mtelephony\n" | |
3590 | " -muser-mode-only\n" | |
3591 | " -mxy\n")); | |
886a2506 NC |
3592 | } |
3593 | ||
3594 | /* Find the proper relocation for the given opcode. */ | |
3595 | ||
3596 | static extended_bfd_reloc_code_real_type | |
3597 | find_reloc (const char *name, | |
3598 | const char *opcodename, | |
3599 | const struct arc_flags *pflags, | |
3600 | int nflg, | |
3601 | extended_bfd_reloc_code_real_type reloc) | |
3602 | { | |
3603 | unsigned int i; | |
3604 | int j; | |
24b368f8 | 3605 | bfd_boolean found_flag, tmp; |
886a2506 NC |
3606 | extended_bfd_reloc_code_real_type ret = BFD_RELOC_UNUSED; |
3607 | ||
3608 | for (i = 0; i < arc_num_equiv_tab; i++) | |
3609 | { | |
3610 | const struct arc_reloc_equiv_tab *r = &arc_reloc_equiv[i]; | |
3611 | ||
3612 | /* Find the entry. */ | |
3613 | if (strcmp (name, r->name)) | |
3614 | continue; | |
3615 | if (r->mnemonic && (strcmp (r->mnemonic, opcodename))) | |
3616 | continue; | |
24b368f8 | 3617 | if (r->flags[0]) |
886a2506 NC |
3618 | { |
3619 | if (!nflg) | |
3620 | continue; | |
3621 | found_flag = FALSE; | |
24b368f8 CZ |
3622 | unsigned * psflg = (unsigned *)r->flags; |
3623 | do | |
3624 | { | |
3625 | tmp = FALSE; | |
3626 | for (j = 0; j < nflg; j++) | |
3627 | if (!strcmp (pflags[j].name, | |
3628 | arc_flag_operands[*psflg].name)) | |
3629 | { | |
3630 | tmp = TRUE; | |
3631 | break; | |
3632 | } | |
3633 | if (!tmp) | |
3634 | { | |
3635 | found_flag = FALSE; | |
3636 | break; | |
3637 | } | |
3638 | else | |
3639 | { | |
3640 | found_flag = TRUE; | |
3641 | } | |
3642 | ++ psflg; | |
3643 | } while (*psflg); | |
3644 | ||
886a2506 NC |
3645 | if (!found_flag) |
3646 | continue; | |
3647 | } | |
3648 | ||
3649 | if (reloc != r->oldreloc) | |
3650 | continue; | |
3651 | /* Found it. */ | |
3652 | ret = r->newreloc; | |
3653 | break; | |
3654 | } | |
3655 | ||
3656 | if (ret == BFD_RELOC_UNUSED) | |
3657 | as_bad (_("Unable to find %s relocation for instruction %s"), | |
3658 | name, opcodename); | |
3659 | return ret; | |
3660 | } | |
3661 | ||
4670103e CZ |
3662 | /* All the symbol types that are allowed to be used for |
3663 | relaxation. */ | |
3664 | ||
3665 | static bfd_boolean | |
3666 | may_relax_expr (expressionS tok) | |
3667 | { | |
3668 | /* Check if we have unrelaxable relocs. */ | |
3669 | switch (tok.X_md) | |
3670 | { | |
3671 | default: | |
3672 | break; | |
3673 | case O_plt: | |
3674 | return FALSE; | |
3675 | } | |
3676 | ||
3677 | switch (tok.X_op) | |
3678 | { | |
3679 | case O_symbol: | |
3680 | case O_multiply: | |
3681 | case O_divide: | |
3682 | case O_modulus: | |
3683 | case O_add: | |
3684 | case O_subtract: | |
3685 | break; | |
3686 | ||
3687 | default: | |
3688 | return FALSE; | |
3689 | } | |
3690 | return TRUE; | |
3691 | } | |
3692 | ||
3693 | /* Checks if flags are in line with relaxable insn. */ | |
3694 | ||
3695 | static bfd_boolean | |
3696 | relaxable_flag (const struct arc_relaxable_ins *ins, | |
3697 | const struct arc_flags *pflags, | |
3698 | int nflgs) | |
3699 | { | |
3700 | unsigned flag_class, | |
3701 | flag, | |
3702 | flag_class_idx = 0, | |
3703 | flag_idx = 0; | |
3704 | ||
3705 | const struct arc_flag_operand *flag_opand; | |
3706 | int i, counttrue = 0; | |
3707 | ||
3708 | /* Iterate through flags classes. */ | |
3709 | while ((flag_class = ins->flag_classes[flag_class_idx]) != 0) | |
3710 | { | |
3711 | /* Iterate through flags in flag class. */ | |
3712 | while ((flag = arc_flag_classes[flag_class].flags[flag_idx]) | |
3713 | != 0) | |
3714 | { | |
3715 | flag_opand = &arc_flag_operands[flag]; | |
3716 | /* Iterate through flags in ins to compare. */ | |
3717 | for (i = 0; i < nflgs; ++i) | |
3718 | { | |
3719 | if (strcmp (flag_opand->name, pflags[i].name) == 0) | |
3720 | ++counttrue; | |
3721 | } | |
3722 | ||
3723 | ++flag_idx; | |
3724 | } | |
3725 | ||
3726 | ++flag_class_idx; | |
3727 | flag_idx = 0; | |
3728 | } | |
3729 | ||
3730 | /* If counttrue == nflgs, then all flags have been found. */ | |
3731 | return (counttrue == nflgs ? TRUE : FALSE); | |
3732 | } | |
3733 | ||
3734 | /* Checks if operands are in line with relaxable insn. */ | |
3735 | ||
3736 | static bfd_boolean | |
3737 | relaxable_operand (const struct arc_relaxable_ins *ins, | |
3738 | const expressionS *tok, | |
3739 | int ntok) | |
3740 | { | |
3741 | const enum rlx_operand_type *operand = &ins->operands[0]; | |
3742 | int i = 0; | |
3743 | ||
3744 | while (*operand != EMPTY) | |
3745 | { | |
3746 | const expressionS *epr = &tok[i]; | |
3747 | ||
3748 | if (i != 0 && i >= ntok) | |
3749 | return FALSE; | |
3750 | ||
3751 | switch (*operand) | |
3752 | { | |
3753 | case IMMEDIATE: | |
3754 | if (!(epr->X_op == O_multiply | |
3755 | || epr->X_op == O_divide | |
3756 | || epr->X_op == O_modulus | |
3757 | || epr->X_op == O_add | |
3758 | || epr->X_op == O_subtract | |
3759 | || epr->X_op == O_symbol)) | |
3760 | return FALSE; | |
3761 | break; | |
3762 | ||
3763 | case REGISTER_DUP: | |
3764 | if ((i <= 0) | |
3765 | || (epr->X_add_number != tok[i - 1].X_add_number)) | |
3766 | return FALSE; | |
3767 | /* Fall through. */ | |
3768 | case REGISTER: | |
3769 | if (epr->X_op != O_register) | |
3770 | return FALSE; | |
3771 | break; | |
3772 | ||
3773 | case REGISTER_S: | |
3774 | if (epr->X_op != O_register) | |
3775 | return FALSE; | |
3776 | ||
3777 | switch (epr->X_add_number) | |
3778 | { | |
3779 | case 0: case 1: case 2: case 3: | |
3780 | case 12: case 13: case 14: case 15: | |
3781 | break; | |
3782 | default: | |
3783 | return FALSE; | |
3784 | } | |
3785 | break; | |
3786 | ||
3787 | case REGISTER_NO_GP: | |
3788 | if ((epr->X_op != O_register) | |
3789 | || (epr->X_add_number == 26)) /* 26 is the gp register. */ | |
3790 | return FALSE; | |
3791 | break; | |
3792 | ||
3793 | case BRACKET: | |
3794 | if (epr->X_op != O_bracket) | |
3795 | return FALSE; | |
3796 | break; | |
3797 | ||
3798 | default: | |
3799 | /* Don't understand, bail out. */ | |
3800 | return FALSE; | |
3801 | break; | |
3802 | } | |
3803 | ||
3804 | ++i; | |
3805 | operand = &ins->operands[i]; | |
3806 | } | |
3807 | ||
3808 | return (i == ntok ? TRUE : FALSE); | |
3809 | } | |
3810 | ||
3811 | /* Return TRUE if this OPDCODE is a candidate for relaxation. */ | |
3812 | ||
3813 | static bfd_boolean | |
3814 | relax_insn_p (const struct arc_opcode *opcode, | |
3815 | const expressionS *tok, | |
3816 | int ntok, | |
3817 | const struct arc_flags *pflags, | |
3818 | int nflg) | |
3819 | { | |
3820 | unsigned i; | |
3821 | bfd_boolean rv = FALSE; | |
3822 | ||
3823 | /* Check the relaxation table. */ | |
3824 | for (i = 0; i < arc_num_relaxable_ins && relaxation_state; ++i) | |
3825 | { | |
3826 | const struct arc_relaxable_ins *arc_rlx_ins = &arc_relaxable_insns[i]; | |
3827 | ||
3828 | if ((strcmp (opcode->name, arc_rlx_ins->mnemonic_r) == 0) | |
3829 | && may_relax_expr (tok[arc_rlx_ins->opcheckidx]) | |
3830 | && relaxable_operand (arc_rlx_ins, tok, ntok) | |
3831 | && relaxable_flag (arc_rlx_ins, pflags, nflg)) | |
3832 | { | |
3833 | rv = TRUE; | |
3834 | frag_now->fr_subtype = arc_relaxable_insns[i].subtype; | |
3835 | memcpy (&frag_now->tc_frag_data.tok, tok, | |
3836 | sizeof (expressionS) * ntok); | |
3837 | memcpy (&frag_now->tc_frag_data.pflags, pflags, | |
3838 | sizeof (struct arc_flags) * nflg); | |
3839 | frag_now->tc_frag_data.nflg = nflg; | |
3840 | frag_now->tc_frag_data.ntok = ntok; | |
3841 | break; | |
3842 | } | |
3843 | } | |
3844 | ||
3845 | return rv; | |
3846 | } | |
3847 | ||
886a2506 NC |
3848 | /* Turn an opcode description and a set of arguments into |
3849 | an instruction and a fixup. */ | |
3850 | ||
3851 | static void | |
3852 | assemble_insn (const struct arc_opcode *opcode, | |
3853 | const expressionS *tok, | |
3854 | int ntok, | |
3855 | const struct arc_flags *pflags, | |
3856 | int nflg, | |
3857 | struct arc_insn *insn) | |
3858 | { | |
3859 | const expressionS *reloc_exp = NULL; | |
bdfe53e3 | 3860 | unsigned long long image; |
886a2506 NC |
3861 | const unsigned char *argidx; |
3862 | int i; | |
3863 | int tokidx = 0; | |
3864 | unsigned char pcrel = 0; | |
3865 | bfd_boolean needGOTSymbol; | |
3866 | bfd_boolean has_delay_slot = FALSE; | |
3867 | extended_bfd_reloc_code_real_type reloc = BFD_RELOC_UNUSED; | |
3868 | ||
3869 | memset (insn, 0, sizeof (*insn)); | |
3870 | image = opcode->opcode; | |
3871 | ||
bdfe53e3 | 3872 | pr_debug ("%s:%d: assemble_insn: %s using opcode %llx\n", |
886a2506 NC |
3873 | frag_now->fr_file, frag_now->fr_line, opcode->name, |
3874 | opcode->opcode); | |
3875 | ||
3876 | /* Handle operands. */ | |
3877 | for (argidx = opcode->operands; *argidx; ++argidx) | |
3878 | { | |
3879 | const struct arc_operand *operand = &arc_operands[*argidx]; | |
3880 | const expressionS *t = (const expressionS *) 0; | |
3881 | ||
db18dbab | 3882 | if (ARC_OPERAND_IS_FAKE (operand)) |
886a2506 NC |
3883 | continue; |
3884 | ||
3885 | if (operand->flags & ARC_OPERAND_DUPLICATE) | |
3886 | { | |
3887 | /* Duplicate operand, already inserted. */ | |
3888 | tokidx ++; | |
3889 | continue; | |
3890 | } | |
3891 | ||
3892 | if (tokidx >= ntok) | |
3893 | { | |
3894 | abort (); | |
3895 | } | |
3896 | else | |
3897 | t = &tok[tokidx++]; | |
3898 | ||
3899 | /* Regardless if we have a reloc or not mark the instruction | |
3900 | limm if it is the case. */ | |
3901 | if (operand->flags & ARC_OPERAND_LIMM) | |
3902 | insn->has_limm = TRUE; | |
3903 | ||
3904 | switch (t->X_op) | |
3905 | { | |
3906 | case O_register: | |
3907 | image = insert_operand (image, operand, regno (t->X_add_number), | |
3908 | NULL, 0); | |
3909 | break; | |
3910 | ||
3911 | case O_constant: | |
3912 | image = insert_operand (image, operand, t->X_add_number, NULL, 0); | |
3913 | reloc_exp = t; | |
3914 | if (operand->flags & ARC_OPERAND_LIMM) | |
3915 | insn->limm = t->X_add_number; | |
3916 | break; | |
3917 | ||
3918 | case O_bracket: | |
db18dbab GM |
3919 | case O_colon: |
3920 | case O_addrtype: | |
3921 | /* Ignore brackets, colons, and address types. */ | |
886a2506 NC |
3922 | break; |
3923 | ||
3924 | case O_absent: | |
3925 | gas_assert (operand->flags & ARC_OPERAND_IGNORE); | |
3926 | break; | |
3927 | ||
3928 | case O_subtract: | |
3929 | /* Maybe register range. */ | |
3930 | if ((t->X_add_number == 0) | |
3931 | && contains_register (t->X_add_symbol) | |
3932 | && contains_register (t->X_op_symbol)) | |
3933 | { | |
3934 | int regs; | |
3935 | ||
3936 | regs = get_register (t->X_add_symbol); | |
3937 | regs <<= 16; | |
3938 | regs |= get_register (t->X_op_symbol); | |
3939 | image = insert_operand (image, operand, regs, NULL, 0); | |
3940 | break; | |
3941 | } | |
1a0670f3 | 3942 | /* Fall through. */ |
886a2506 NC |
3943 | |
3944 | default: | |
3945 | /* This operand needs a relocation. */ | |
3946 | needGOTSymbol = FALSE; | |
3947 | ||
3948 | switch (t->X_md) | |
3949 | { | |
3950 | case O_plt: | |
c810e0b8 | 3951 | if (opcode->insn_class == JUMP) |
6e3f3473 | 3952 | as_bad (_("Unable to use @plt relocation for insn %s"), |
3953 | opcode->name); | |
886a2506 NC |
3954 | needGOTSymbol = TRUE; |
3955 | reloc = find_reloc ("plt", opcode->name, | |
3956 | pflags, nflg, | |
3957 | operand->default_reloc); | |
3958 | break; | |
3959 | ||
3960 | case O_gotoff: | |
3961 | case O_gotpc: | |
3962 | needGOTSymbol = TRUE; | |
3963 | reloc = ARC_RELOC_TABLE (t->X_md)->reloc; | |
3964 | break; | |
3965 | case O_pcl: | |
cc07cda6 CZ |
3966 | if (operand->flags & ARC_OPERAND_LIMM) |
3967 | { | |
3968 | reloc = ARC_RELOC_TABLE (t->X_md)->reloc; | |
3969 | if (arc_opcode_len (opcode) == 2 | |
3970 | || opcode->insn_class == JUMP) | |
6e3f3473 | 3971 | as_bad (_("Unable to use @pcl relocation for insn %s"), |
3972 | opcode->name); | |
cc07cda6 CZ |
3973 | } |
3974 | else | |
3975 | { | |
3976 | /* This is a relaxed operand which initially was | |
3977 | limm, choose whatever we have defined in the | |
3978 | opcode as reloc. */ | |
3979 | reloc = operand->default_reloc; | |
3980 | } | |
886a2506 NC |
3981 | break; |
3982 | case O_sda: | |
3983 | reloc = find_reloc ("sda", opcode->name, | |
3984 | pflags, nflg, | |
3985 | operand->default_reloc); | |
3986 | break; | |
3987 | case O_tlsgd: | |
3988 | case O_tlsie: | |
3989 | needGOTSymbol = TRUE; | |
3990 | /* Fall-through. */ | |
3991 | ||
3992 | case O_tpoff: | |
3993 | case O_dtpoff: | |
3994 | reloc = ARC_RELOC_TABLE (t->X_md)->reloc; | |
3995 | break; | |
3996 | ||
3997 | case O_tpoff9: /*FIXME! Check for the conditionality of | |
3998 | the insn. */ | |
3999 | case O_dtpoff9: /*FIXME! Check for the conditionality of | |
4000 | the insn. */ | |
4001 | as_bad (_("TLS_*_S9 relocs are not supported yet")); | |
4002 | break; | |
4003 | ||
4004 | default: | |
4005 | /* Just consider the default relocation. */ | |
4006 | reloc = operand->default_reloc; | |
4007 | break; | |
4008 | } | |
4009 | ||
4010 | if (needGOTSymbol && (GOT_symbol == NULL)) | |
4011 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
4012 | ||
4013 | reloc_exp = t; | |
4014 | ||
4015 | #if 0 | |
4016 | if (reloc > 0) | |
4017 | { | |
4018 | /* sanity checks. */ | |
4019 | reloc_howto_type *reloc_howto | |
4020 | = bfd_reloc_type_lookup (stdoutput, | |
4021 | (bfd_reloc_code_real_type) reloc); | |
4022 | unsigned reloc_bitsize = reloc_howto->bitsize; | |
4023 | if (reloc_howto->rightshift) | |
4024 | reloc_bitsize -= reloc_howto->rightshift; | |
4025 | if (reloc_bitsize != operand->bits) | |
4026 | { | |
4027 | as_bad (_("invalid relocation %s for field"), | |
4028 | bfd_get_reloc_code_name (reloc)); | |
4029 | return; | |
4030 | } | |
4031 | } | |
4032 | #endif | |
4033 | if (insn->nfixups >= MAX_INSN_FIXUPS) | |
4034 | as_fatal (_("too many fixups")); | |
4035 | ||
4036 | struct arc_fixup *fixup; | |
4037 | fixup = &insn->fixups[insn->nfixups++]; | |
4038 | fixup->exp = *t; | |
4039 | fixup->reloc = reloc; | |
cc07cda6 CZ |
4040 | if ((int) reloc < 0) |
4041 | pcrel = (operand->flags & ARC_OPERAND_PCREL) ? 1 : 0; | |
4042 | else | |
4043 | { | |
4044 | reloc_howto_type *reloc_howto = | |
4045 | bfd_reloc_type_lookup (stdoutput, | |
4046 | (bfd_reloc_code_real_type) fixup->reloc); | |
4047 | pcrel = reloc_howto->pc_relative; | |
4048 | } | |
886a2506 NC |
4049 | fixup->pcrel = pcrel; |
4050 | fixup->islong = (operand->flags & ARC_OPERAND_LIMM) ? | |
4051 | TRUE : FALSE; | |
4052 | break; | |
4053 | } | |
4054 | } | |
4055 | ||
4056 | /* Handle flags. */ | |
4057 | for (i = 0; i < nflg; i++) | |
4058 | { | |
f36e33da | 4059 | const struct arc_flag_operand *flg_operand = pflags[i].flgp; |
886a2506 NC |
4060 | |
4061 | /* Check if the instruction has a delay slot. */ | |
4062 | if (!strcmp (flg_operand->name, "d")) | |
4063 | has_delay_slot = TRUE; | |
4064 | ||
2c52e2e8 RZ |
4065 | /* There is an exceptional case when we cannot insert a flag just as |
4066 | it is. On ARCv2 the '.t' and '.nt' flags must be handled in | |
4067 | relation with the relative address. Unfortunately, some of the | |
4068 | ARC700 extensions (NPS400) also have a '.nt' flag that should be | |
4069 | handled in the normal way. | |
4070 | ||
4071 | Flag operands don't have an architecture field, so we can't | |
4072 | directly validate that FLAG_OPERAND is valid for the current | |
4073 | architecture, what we do instead is just validate that we're | |
4074 | assembling for an ARCv2 architecture. */ | |
4075 | if ((selected_cpu.flags & ARC_OPCODE_ARCV2) | |
4076 | && (!strcmp (flg_operand->name, "t") | |
4077 | || !strcmp (flg_operand->name, "nt"))) | |
886a2506 NC |
4078 | { |
4079 | unsigned bitYoperand = 0; | |
4080 | /* FIXME! move selection bbit/brcc in arc-opc.c. */ | |
4081 | if (!strcmp (flg_operand->name, "t")) | |
4082 | if (!strcmp (opcode->name, "bbit0") | |
4083 | || !strcmp (opcode->name, "bbit1")) | |
4084 | bitYoperand = arc_NToperand; | |
4085 | else | |
4086 | bitYoperand = arc_Toperand; | |
4087 | else | |
4088 | if (!strcmp (opcode->name, "bbit0") | |
4089 | || !strcmp (opcode->name, "bbit1")) | |
4090 | bitYoperand = arc_Toperand; | |
4091 | else | |
4092 | bitYoperand = arc_NToperand; | |
4093 | ||
4094 | gas_assert (reloc_exp != NULL); | |
4095 | if (reloc_exp->X_op == O_constant) | |
4096 | { | |
4097 | /* Check if we have a constant and solved it | |
4098 | immediately. */ | |
4099 | offsetT val = reloc_exp->X_add_number; | |
4100 | image |= insert_operand (image, &arc_operands[bitYoperand], | |
4101 | val, NULL, 0); | |
4102 | } | |
4103 | else | |
4104 | { | |
4105 | struct arc_fixup *fixup; | |
4106 | ||
4107 | if (insn->nfixups >= MAX_INSN_FIXUPS) | |
4108 | as_fatal (_("too many fixups")); | |
4109 | ||
4110 | fixup = &insn->fixups[insn->nfixups++]; | |
4111 | fixup->exp = *reloc_exp; | |
4112 | fixup->reloc = -bitYoperand; | |
4113 | fixup->pcrel = pcrel; | |
4114 | fixup->islong = FALSE; | |
4115 | } | |
4116 | } | |
4117 | else | |
4118 | image |= (flg_operand->code & ((1 << flg_operand->bits) - 1)) | |
4119 | << flg_operand->shift; | |
4120 | } | |
4121 | ||
4670103e CZ |
4122 | insn->relax = relax_insn_p (opcode, tok, ntok, pflags, nflg); |
4123 | ||
91fdca6f | 4124 | /* Instruction length. */ |
06fe285f | 4125 | insn->len = arc_opcode_len (opcode); |
886a2506 NC |
4126 | |
4127 | insn->insn = image; | |
4128 | ||
4129 | /* Update last insn status. */ | |
4130 | arc_last_insns[1] = arc_last_insns[0]; | |
4131 | arc_last_insns[0].opcode = opcode; | |
4132 | arc_last_insns[0].has_limm = insn->has_limm; | |
4133 | arc_last_insns[0].has_delay_slot = has_delay_slot; | |
4134 | ||
4135 | /* Check if the current instruction is legally used. */ | |
4136 | if (arc_last_insns[1].has_delay_slot | |
4137 | && is_br_jmp_insn_p (arc_last_insns[0].opcode)) | |
6e3f3473 | 4138 | as_bad (_("Insn %s has a jump/branch instruction %s in its delay slot."), |
4139 | arc_last_insns[1].opcode->name, | |
4140 | arc_last_insns[0].opcode->name); | |
cf9bdae9 | 4141 | if (arc_last_insns[1].has_delay_slot |
4142 | && arc_last_insns[0].has_limm) | |
4143 | as_bad (_("Insn %s has an instruction %s with limm in its delay slot."), | |
4144 | arc_last_insns[1].opcode->name, | |
4145 | arc_last_insns[0].opcode->name); | |
886a2506 NC |
4146 | } |
4147 | ||
886a2506 NC |
4148 | void |
4149 | arc_handle_align (fragS* fragP) | |
4150 | { | |
4151 | if ((fragP)->fr_type == rs_align_code) | |
4152 | { | |
4153 | char *dest = (fragP)->fr_literal + (fragP)->fr_fix; | |
4154 | valueT count = ((fragP)->fr_next->fr_address | |
4155 | - (fragP)->fr_address - (fragP)->fr_fix); | |
4156 | ||
4157 | (fragP)->fr_var = 2; | |
4158 | ||
4159 | if (count & 1)/* Padding in the gap till the next 2-byte | |
4160 | boundary with 0s. */ | |
4161 | { | |
4162 | (fragP)->fr_fix++; | |
4163 | *dest++ = 0; | |
4164 | } | |
4165 | /* Writing nop_s. */ | |
4166 | md_number_to_chars (dest, NOP_OPCODE_S, 2); | |
4167 | } | |
4168 | } | |
4169 | ||
4170 | /* Here we decide which fixups can be adjusted to make them relative | |
4171 | to the beginning of the section instead of the symbol. Basically | |
4172 | we need to make sure that the dynamic relocations are done | |
4173 | correctly, so in some cases we force the original symbol to be | |
4174 | used. */ | |
4175 | ||
4176 | int | |
4177 | tc_arc_fix_adjustable (fixS *fixP) | |
4178 | { | |
4179 | ||
4180 | /* Prevent all adjustments to global symbols. */ | |
4181 | if (S_IS_EXTERNAL (fixP->fx_addsy)) | |
4182 | return 0; | |
4183 | if (S_IS_WEAK (fixP->fx_addsy)) | |
4184 | return 0; | |
4185 | ||
4186 | /* Adjust_reloc_syms doesn't know about the GOT. */ | |
4187 | switch (fixP->fx_r_type) | |
4188 | { | |
4189 | case BFD_RELOC_ARC_GOTPC32: | |
4190 | case BFD_RELOC_ARC_PLT32: | |
4191 | case BFD_RELOC_ARC_S25H_PCREL_PLT: | |
4192 | case BFD_RELOC_ARC_S21H_PCREL_PLT: | |
4193 | case BFD_RELOC_ARC_S25W_PCREL_PLT: | |
4194 | case BFD_RELOC_ARC_S21W_PCREL_PLT: | |
4195 | return 0; | |
4196 | ||
4197 | default: | |
4198 | break; | |
4199 | } | |
4200 | ||
841fdfcd | 4201 | return 1; |
886a2506 NC |
4202 | } |
4203 | ||
4204 | /* Compute the reloc type of an expression EXP. */ | |
4205 | ||
4206 | static void | |
4207 | arc_check_reloc (expressionS *exp, | |
4208 | bfd_reloc_code_real_type *r_type_p) | |
4209 | { | |
4210 | if (*r_type_p == BFD_RELOC_32 | |
4211 | && exp->X_op == O_subtract | |
4212 | && exp->X_op_symbol != NULL | |
8d1015a8 | 4213 | && S_GET_SEGMENT (exp->X_op_symbol) == now_seg) |
6f4b1afc | 4214 | *r_type_p = BFD_RELOC_ARC_32_PCREL; |
886a2506 NC |
4215 | } |
4216 | ||
4217 | ||
4218 | /* Add expression EXP of SIZE bytes to offset OFF of fragment FRAG. */ | |
4219 | ||
4220 | void | |
4221 | arc_cons_fix_new (fragS *frag, | |
4222 | int off, | |
4223 | int size, | |
4224 | expressionS *exp, | |
4225 | bfd_reloc_code_real_type r_type) | |
4226 | { | |
4227 | r_type = BFD_RELOC_UNUSED; | |
4228 | ||
4229 | switch (size) | |
4230 | { | |
4231 | case 1: | |
4232 | r_type = BFD_RELOC_8; | |
4233 | break; | |
4234 | ||
4235 | case 2: | |
4236 | r_type = BFD_RELOC_16; | |
4237 | break; | |
4238 | ||
4239 | case 3: | |
4240 | r_type = BFD_RELOC_24; | |
4241 | break; | |
4242 | ||
4243 | case 4: | |
4244 | r_type = BFD_RELOC_32; | |
4245 | arc_check_reloc (exp, &r_type); | |
4246 | break; | |
4247 | ||
4248 | case 8: | |
4249 | r_type = BFD_RELOC_64; | |
4250 | break; | |
4251 | ||
4252 | default: | |
4253 | as_bad (_("unsupported BFD relocation size %u"), size); | |
4254 | r_type = BFD_RELOC_UNUSED; | |
4255 | } | |
4256 | ||
4257 | fix_new_exp (frag, off, size, exp, 0, r_type); | |
4258 | } | |
4259 | ||
4260 | /* The actual routine that checks the ZOL conditions. */ | |
4261 | ||
4262 | static void | |
4263 | check_zol (symbolS *s) | |
4264 | { | |
bb65a718 | 4265 | switch (selected_cpu.mach) |
886a2506 NC |
4266 | { |
4267 | case bfd_mach_arc_arcv2: | |
bb65a718 | 4268 | if (selected_cpu.flags & ARC_OPCODE_ARCv2EM) |
886a2506 NC |
4269 | return; |
4270 | ||
4271 | if (is_br_jmp_insn_p (arc_last_insns[0].opcode) | |
4272 | || arc_last_insns[1].has_delay_slot) | |
4273 | as_bad (_("Jump/Branch instruction detected at the end of the ZOL label @%s"), | |
4274 | S_GET_NAME (s)); | |
4275 | ||
4276 | break; | |
4277 | case bfd_mach_arc_arc600: | |
4278 | ||
4279 | if (is_kernel_insn_p (arc_last_insns[0].opcode)) | |
4280 | as_bad (_("Kernel instruction detected at the end of the ZOL label @%s"), | |
4281 | S_GET_NAME (s)); | |
4282 | ||
4283 | if (arc_last_insns[0].has_limm | |
4284 | && is_br_jmp_insn_p (arc_last_insns[0].opcode)) | |
4285 | as_bad (_("A jump instruction with long immediate detected at the \ | |
4286 | end of the ZOL label @%s"), S_GET_NAME (s)); | |
4287 | ||
4288 | /* Fall through. */ | |
4289 | case bfd_mach_arc_arc700: | |
4290 | if (arc_last_insns[0].has_delay_slot) | |
4291 | as_bad (_("An illegal use of delay slot detected at the end of the ZOL label @%s"), | |
4292 | S_GET_NAME (s)); | |
4293 | ||
4294 | break; | |
4295 | default: | |
4296 | break; | |
4297 | } | |
4298 | } | |
4299 | ||
4300 | /* If ZOL end check the last two instruction for illegals. */ | |
4301 | void | |
4302 | arc_frob_label (symbolS * sym) | |
4303 | { | |
4304 | if (ARC_GET_FLAG (sym) & ARC_FLAG_ZOL) | |
4305 | check_zol (sym); | |
4306 | ||
4307 | dwarf2_emit_label (sym); | |
ea1562b3 | 4308 | } |
4670103e CZ |
4309 | |
4310 | /* Used because generic relaxation assumes a pc-rel value whilst we | |
4311 | also relax instructions that use an absolute value resolved out of | |
4312 | relative values (if that makes any sense). An example: 'add r1, | |
4313 | r2, @.L2 - .' The symbols . and @.L2 are relative to the section | |
4314 | but if they're in the same section we can subtract the section | |
4315 | offset relocation which ends up in a resolved value. So if @.L2 is | |
4316 | .text + 0x50 and . is .text + 0x10, we can say that .text + 0x50 - | |
4317 | .text + 0x40 = 0x10. */ | |
4318 | int | |
4319 | arc_pcrel_adjust (fragS *fragP) | |
4320 | { | |
cc07cda6 CZ |
4321 | pr_debug ("arc_pcrel_adjust: address=%ld, fix=%ld, PCrel %s\n", |
4322 | fragP->fr_address, fragP->fr_fix, | |
4323 | fragP->tc_frag_data.pcrel ? "Y" : "N"); | |
4324 | ||
4670103e CZ |
4325 | if (!fragP->tc_frag_data.pcrel) |
4326 | return fragP->fr_address + fragP->fr_fix; | |
4327 | ||
cc07cda6 CZ |
4328 | /* Take into account the PCL rounding. */ |
4329 | return (fragP->fr_address + fragP->fr_fix) & 0x03; | |
4670103e | 4330 | } |
726c18e1 CZ |
4331 | |
4332 | /* Initialize the DWARF-2 unwind information for this procedure. */ | |
4333 | ||
4334 | void | |
4335 | tc_arc_frame_initial_instructions (void) | |
4336 | { | |
4337 | /* Stack pointer is register 28. */ | |
45a54ee5 | 4338 | cfi_add_CFA_def_cfa (28, 0); |
726c18e1 CZ |
4339 | } |
4340 | ||
4341 | int | |
4342 | tc_arc_regname_to_dw2regnum (char *regname) | |
4343 | { | |
4344 | struct symbol *sym; | |
4345 | ||
4346 | sym = hash_find (arc_reg_hash, regname); | |
4347 | if (sym) | |
4348 | return S_GET_VALUE (sym); | |
4349 | ||
4350 | return -1; | |
4351 | } | |
37ab9779 CZ |
4352 | |
4353 | /* Adjust the symbol table. Delete found AUX register symbols. */ | |
4354 | ||
4355 | void | |
4356 | arc_adjust_symtab (void) | |
4357 | { | |
4358 | symbolS * sym; | |
4359 | ||
4360 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
4361 | { | |
4362 | /* I've created a symbol during parsing process. Now, remove | |
4363 | the symbol as it is found to be an AUX register. */ | |
4364 | if (ARC_GET_FLAG (sym) & ARC_FLAG_AUX) | |
4365 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
4366 | } | |
4367 | ||
4368 | /* Now do generic ELF adjustments. */ | |
4369 | elf_adjust_symtab (); | |
4370 | } | |
b99747ae CZ |
4371 | |
4372 | static void | |
4373 | tokenize_extinsn (extInstruction_t *einsn) | |
4374 | { | |
4375 | char *p, c; | |
4376 | char *insn_name; | |
4377 | unsigned char major_opcode; | |
4378 | unsigned char sub_opcode; | |
4379 | unsigned char syntax_class = 0; | |
4380 | unsigned char syntax_class_modifiers = 0; | |
4381 | unsigned char suffix_class = 0; | |
4382 | unsigned int i; | |
4383 | ||
4384 | SKIP_WHITESPACE (); | |
4385 | ||
4386 | /* 1st: get instruction name. */ | |
4387 | p = input_line_pointer; | |
4388 | c = get_symbol_name (&p); | |
4389 | ||
4390 | insn_name = xstrdup (p); | |
4391 | restore_line_pointer (c); | |
4392 | ||
f02806be | 4393 | /* Convert to lower case. */ |
4394 | for (p = insn_name; *p; ++p) | |
4395 | *p = TOLOWER (*p); | |
4396 | ||
b99747ae CZ |
4397 | /* 2nd: get major opcode. */ |
4398 | if (*input_line_pointer != ',') | |
4399 | { | |
4400 | as_bad (_("expected comma after instruction name")); | |
4401 | ignore_rest_of_line (); | |
4402 | return; | |
4403 | } | |
4404 | input_line_pointer++; | |
4405 | major_opcode = get_absolute_expression (); | |
4406 | ||
4407 | /* 3rd: get sub-opcode. */ | |
4408 | SKIP_WHITESPACE (); | |
4409 | ||
4410 | if (*input_line_pointer != ',') | |
4411 | { | |
4412 | as_bad (_("expected comma after major opcode")); | |
4413 | ignore_rest_of_line (); | |
4414 | return; | |
4415 | } | |
4416 | input_line_pointer++; | |
4417 | sub_opcode = get_absolute_expression (); | |
4418 | ||
4419 | /* 4th: get suffix class. */ | |
4420 | SKIP_WHITESPACE (); | |
4421 | ||
4422 | if (*input_line_pointer != ',') | |
4423 | { | |
4424 | as_bad ("expected comma after sub opcode"); | |
4425 | ignore_rest_of_line (); | |
4426 | return; | |
4427 | } | |
4428 | input_line_pointer++; | |
4429 | ||
4430 | while (1) | |
4431 | { | |
4432 | SKIP_WHITESPACE (); | |
4433 | ||
4434 | for (i = 0; i < ARRAY_SIZE (suffixclass); i++) | |
4435 | { | |
4436 | if (!strncmp (suffixclass[i].name, input_line_pointer, | |
4437 | suffixclass[i].len)) | |
4438 | { | |
c810e0b8 | 4439 | suffix_class |= suffixclass[i].attr_class; |
b99747ae CZ |
4440 | input_line_pointer += suffixclass[i].len; |
4441 | break; | |
4442 | } | |
4443 | } | |
4444 | ||
4445 | if (i == ARRAY_SIZE (suffixclass)) | |
4446 | { | |
4447 | as_bad ("invalid suffix class"); | |
4448 | ignore_rest_of_line (); | |
4449 | return; | |
4450 | } | |
4451 | ||
4452 | SKIP_WHITESPACE (); | |
4453 | ||
4454 | if (*input_line_pointer == '|') | |
4455 | input_line_pointer++; | |
4456 | else | |
4457 | break; | |
4458 | } | |
4459 | ||
4460 | /* 5th: get syntax class and syntax class modifiers. */ | |
4461 | if (*input_line_pointer != ',') | |
4462 | { | |
4463 | as_bad ("expected comma after suffix class"); | |
4464 | ignore_rest_of_line (); | |
4465 | return; | |
4466 | } | |
4467 | input_line_pointer++; | |
4468 | ||
4469 | while (1) | |
4470 | { | |
4471 | SKIP_WHITESPACE (); | |
4472 | ||
4473 | for (i = 0; i < ARRAY_SIZE (syntaxclassmod); i++) | |
4474 | { | |
4475 | if (!strncmp (syntaxclassmod[i].name, | |
4476 | input_line_pointer, | |
4477 | syntaxclassmod[i].len)) | |
4478 | { | |
c810e0b8 | 4479 | syntax_class_modifiers |= syntaxclassmod[i].attr_class; |
b99747ae CZ |
4480 | input_line_pointer += syntaxclassmod[i].len; |
4481 | break; | |
4482 | } | |
4483 | } | |
4484 | ||
4485 | if (i == ARRAY_SIZE (syntaxclassmod)) | |
4486 | { | |
4487 | for (i = 0; i < ARRAY_SIZE (syntaxclass); i++) | |
4488 | { | |
4489 | if (!strncmp (syntaxclass[i].name, | |
4490 | input_line_pointer, | |
4491 | syntaxclass[i].len)) | |
4492 | { | |
c810e0b8 | 4493 | syntax_class |= syntaxclass[i].attr_class; |
b99747ae CZ |
4494 | input_line_pointer += syntaxclass[i].len; |
4495 | break; | |
4496 | } | |
4497 | } | |
4498 | ||
4499 | if (i == ARRAY_SIZE (syntaxclass)) | |
4500 | { | |
4501 | as_bad ("missing syntax class"); | |
4502 | ignore_rest_of_line (); | |
4503 | return; | |
4504 | } | |
4505 | } | |
4506 | ||
4507 | SKIP_WHITESPACE (); | |
4508 | ||
4509 | if (*input_line_pointer == '|') | |
4510 | input_line_pointer++; | |
4511 | else | |
4512 | break; | |
4513 | } | |
4514 | ||
4515 | demand_empty_rest_of_line (); | |
4516 | ||
4517 | einsn->name = insn_name; | |
4518 | einsn->major = major_opcode; | |
4519 | einsn->minor = sub_opcode; | |
4520 | einsn->syntax = syntax_class; | |
4521 | einsn->modsyn = syntax_class_modifiers; | |
4522 | einsn->suffix = suffix_class; | |
4523 | einsn->flags = syntax_class | |
4524 | | (syntax_class_modifiers & ARC_OP1_IMM_IMPLIED ? 0x10 : 0); | |
4525 | } | |
4526 | ||
4527 | /* Generate an extension section. */ | |
4528 | ||
4529 | static int | |
4530 | arc_set_ext_seg (void) | |
4531 | { | |
4532 | if (!arcext_section) | |
4533 | { | |
4534 | arcext_section = subseg_new (".arcextmap", 0); | |
4535 | bfd_set_section_flags (stdoutput, arcext_section, | |
4536 | SEC_READONLY | SEC_HAS_CONTENTS); | |
4537 | } | |
4538 | else | |
4539 | subseg_set (arcext_section, 0); | |
4540 | return 1; | |
4541 | } | |
4542 | ||
4543 | /* Create an extension instruction description in the arc extension | |
4544 | section of the output file. | |
4545 | The structure for an instruction is like this: | |
4546 | [0]: Length of the record. | |
4547 | [1]: Type of the record. | |
4548 | ||
4549 | [2]: Major opcode. | |
4550 | [3]: Sub-opcode. | |
4551 | [4]: Syntax (flags). | |
4552 | [5]+ Name instruction. | |
4553 | ||
4554 | The sequence is terminated by an empty entry. */ | |
4555 | ||
4556 | static void | |
4557 | create_extinst_section (extInstruction_t *einsn) | |
4558 | { | |
4559 | ||
4560 | segT old_sec = now_seg; | |
4561 | int old_subsec = now_subseg; | |
4562 | char *p; | |
4563 | int name_len = strlen (einsn->name); | |
4564 | ||
4565 | arc_set_ext_seg (); | |
4566 | ||
4567 | p = frag_more (1); | |
4568 | *p = 5 + name_len + 1; | |
4569 | p = frag_more (1); | |
4570 | *p = EXT_INSTRUCTION; | |
4571 | p = frag_more (1); | |
4572 | *p = einsn->major; | |
4573 | p = frag_more (1); | |
4574 | *p = einsn->minor; | |
4575 | p = frag_more (1); | |
4576 | *p = einsn->flags; | |
4577 | p = frag_more (name_len + 1); | |
4578 | strcpy (p, einsn->name); | |
4579 | ||
4580 | subseg_set (old_sec, old_subsec); | |
4581 | } | |
4582 | ||
4583 | /* Handler .extinstruction pseudo-op. */ | |
4584 | ||
4585 | static void | |
4586 | arc_extinsn (int ignore ATTRIBUTE_UNUSED) | |
4587 | { | |
4588 | extInstruction_t einsn; | |
4589 | struct arc_opcode *arc_ext_opcodes; | |
4590 | const char *errmsg = NULL; | |
4591 | unsigned char moplow, mophigh; | |
4592 | ||
4593 | memset (&einsn, 0, sizeof (einsn)); | |
4594 | tokenize_extinsn (&einsn); | |
4595 | ||
4596 | /* Check if the name is already used. */ | |
4597 | if (arc_find_opcode (einsn.name)) | |
4598 | as_warn (_("Pseudocode already used %s"), einsn.name); | |
4599 | ||
4600 | /* Check the opcode ranges. */ | |
4601 | moplow = 0x05; | |
bb65a718 AB |
4602 | mophigh = (selected_cpu.flags & (ARC_OPCODE_ARCv2EM |
4603 | | ARC_OPCODE_ARCv2HS)) ? 0x07 : 0x0a; | |
b99747ae CZ |
4604 | |
4605 | if ((einsn.major > mophigh) || (einsn.major < moplow)) | |
4606 | as_fatal (_("major opcode not in range [0x%02x - 0x%02x]"), moplow, mophigh); | |
4607 | ||
4608 | if ((einsn.minor > 0x3f) && (einsn.major != 0x0a) | |
4609 | && (einsn.major != 5) && (einsn.major != 9)) | |
4610 | as_fatal (_("minor opcode not in range [0x00 - 0x3f]")); | |
4611 | ||
945e0f82 | 4612 | switch (einsn.syntax & ARC_SYNTAX_MASK) |
b99747ae CZ |
4613 | { |
4614 | case ARC_SYNTAX_3OP: | |
4615 | if (einsn.modsyn & ARC_OP1_IMM_IMPLIED) | |
4616 | as_fatal (_("Improper use of OP1_IMM_IMPLIED")); | |
4617 | break; | |
4618 | case ARC_SYNTAX_2OP: | |
945e0f82 CZ |
4619 | case ARC_SYNTAX_1OP: |
4620 | case ARC_SYNTAX_NOP: | |
b99747ae CZ |
4621 | if (einsn.modsyn & ARC_OP1_MUST_BE_IMM) |
4622 | as_fatal (_("Improper use of OP1_MUST_BE_IMM")); | |
4623 | break; | |
4624 | default: | |
4625 | break; | |
4626 | } | |
4627 | ||
bb65a718 | 4628 | arc_ext_opcodes = arcExtMap_genOpcode (&einsn, selected_cpu.flags, &errmsg); |
b99747ae CZ |
4629 | if (arc_ext_opcodes == NULL) |
4630 | { | |
4631 | if (errmsg) | |
4632 | as_fatal ("%s", errmsg); | |
4633 | else | |
4634 | as_fatal (_("Couldn't generate extension instruction opcodes")); | |
4635 | } | |
4636 | else if (errmsg) | |
4637 | as_warn ("%s", errmsg); | |
4638 | ||
4639 | /* Insert the extension instruction. */ | |
4640 | arc_insert_opcode ((const struct arc_opcode *) arc_ext_opcodes); | |
4641 | ||
4642 | create_extinst_section (&einsn); | |
4643 | } | |
4644 | ||
06911889 | 4645 | static bfd_boolean |
f36e33da CZ |
4646 | tokenize_extregister (extRegister_t *ereg, int opertype) |
4647 | { | |
4648 | char *name; | |
4649 | char *mode; | |
4650 | char c; | |
4651 | char *p; | |
4652 | int number, imode = 0; | |
4653 | bfd_boolean isCore_p = (opertype == EXT_CORE_REGISTER) ? TRUE : FALSE; | |
4654 | bfd_boolean isReg_p = (opertype == EXT_CORE_REGISTER | |
4655 | || opertype == EXT_AUX_REGISTER) ? TRUE : FALSE; | |
4656 | ||
4657 | /* 1st: get register name. */ | |
4658 | SKIP_WHITESPACE (); | |
4659 | p = input_line_pointer; | |
4660 | c = get_symbol_name (&p); | |
4661 | ||
4662 | name = xstrdup (p); | |
4663 | restore_line_pointer (c); | |
4664 | ||
4665 | /* 2nd: get register number. */ | |
4666 | SKIP_WHITESPACE (); | |
4667 | ||
4668 | if (*input_line_pointer != ',') | |
4669 | { | |
06911889 | 4670 | as_bad (_("expected comma after name")); |
f36e33da CZ |
4671 | ignore_rest_of_line (); |
4672 | free (name); | |
06911889 | 4673 | return FALSE; |
f36e33da CZ |
4674 | } |
4675 | input_line_pointer++; | |
4676 | number = get_absolute_expression (); | |
4677 | ||
06911889 CZ |
4678 | if ((number < 0) |
4679 | && (opertype != EXT_AUX_REGISTER)) | |
f36e33da | 4680 | { |
06911889 CZ |
4681 | as_bad (_("%s second argument cannot be a negative number %d"), |
4682 | isCore_p ? "extCoreRegister's" : "extCondCode's", | |
4683 | number); | |
f36e33da CZ |
4684 | ignore_rest_of_line (); |
4685 | free (name); | |
06911889 | 4686 | return FALSE; |
f36e33da CZ |
4687 | } |
4688 | ||
4689 | if (isReg_p) | |
4690 | { | |
4691 | /* 3rd: get register mode. */ | |
4692 | SKIP_WHITESPACE (); | |
4693 | ||
4694 | if (*input_line_pointer != ',') | |
4695 | { | |
4696 | as_bad (_("expected comma after register number")); | |
4697 | ignore_rest_of_line (); | |
4698 | free (name); | |
06911889 | 4699 | return FALSE; |
f36e33da CZ |
4700 | } |
4701 | ||
4702 | input_line_pointer++; | |
4703 | mode = input_line_pointer; | |
4704 | ||
4705 | if (!strncmp (mode, "r|w", 3)) | |
4706 | { | |
4707 | imode = 0; | |
4708 | input_line_pointer += 3; | |
4709 | } | |
4710 | else if (!strncmp (mode, "r", 1)) | |
4711 | { | |
4712 | imode = ARC_REGISTER_READONLY; | |
4713 | input_line_pointer += 1; | |
4714 | } | |
4715 | else if (strncmp (mode, "w", 1)) | |
4716 | { | |
4717 | as_bad (_("invalid mode")); | |
4718 | ignore_rest_of_line (); | |
4719 | free (name); | |
06911889 | 4720 | return FALSE; |
f36e33da CZ |
4721 | } |
4722 | else | |
4723 | { | |
4724 | imode = ARC_REGISTER_WRITEONLY; | |
4725 | input_line_pointer += 1; | |
4726 | } | |
4727 | } | |
4728 | ||
4729 | if (isCore_p) | |
4730 | { | |
4731 | /* 4th: get core register shortcut. */ | |
4732 | SKIP_WHITESPACE (); | |
4733 | if (*input_line_pointer != ',') | |
4734 | { | |
4735 | as_bad (_("expected comma after register mode")); | |
4736 | ignore_rest_of_line (); | |
4737 | free (name); | |
06911889 | 4738 | return FALSE; |
f36e33da CZ |
4739 | } |
4740 | ||
4741 | input_line_pointer++; | |
4742 | ||
4743 | if (!strncmp (input_line_pointer, "cannot_shortcut", 15)) | |
4744 | { | |
4745 | imode |= ARC_REGISTER_NOSHORT_CUT; | |
4746 | input_line_pointer += 15; | |
4747 | } | |
4748 | else if (strncmp (input_line_pointer, "can_shortcut", 12)) | |
4749 | { | |
4750 | as_bad (_("shortcut designator invalid")); | |
4751 | ignore_rest_of_line (); | |
4752 | free (name); | |
06911889 | 4753 | return FALSE; |
f36e33da CZ |
4754 | } |
4755 | else | |
4756 | { | |
4757 | input_line_pointer += 12; | |
4758 | } | |
4759 | } | |
4760 | demand_empty_rest_of_line (); | |
4761 | ||
4762 | ereg->name = name; | |
4763 | ereg->number = number; | |
4764 | ereg->imode = imode; | |
06911889 | 4765 | return TRUE; |
f36e33da CZ |
4766 | } |
4767 | ||
4768 | /* Create an extension register/condition description in the arc | |
4769 | extension section of the output file. | |
4770 | ||
4771 | The structure for an instruction is like this: | |
4772 | [0]: Length of the record. | |
4773 | [1]: Type of the record. | |
4774 | ||
4775 | For core regs and condition codes: | |
4776 | [2]: Value. | |
4777 | [3]+ Name. | |
4778 | ||
33eaf5de | 4779 | For auxiliary registers: |
f36e33da CZ |
4780 | [2..5]: Value. |
4781 | [6]+ Name | |
4782 | ||
4783 | The sequence is terminated by an empty entry. */ | |
4784 | ||
4785 | static void | |
4786 | create_extcore_section (extRegister_t *ereg, int opertype) | |
4787 | { | |
4788 | segT old_sec = now_seg; | |
4789 | int old_subsec = now_subseg; | |
4790 | char *p; | |
4791 | int name_len = strlen (ereg->name); | |
4792 | ||
4793 | arc_set_ext_seg (); | |
4794 | ||
4795 | switch (opertype) | |
4796 | { | |
4797 | case EXT_COND_CODE: | |
4798 | case EXT_CORE_REGISTER: | |
4799 | p = frag_more (1); | |
4800 | *p = 3 + name_len + 1; | |
4801 | p = frag_more (1); | |
4802 | *p = opertype; | |
4803 | p = frag_more (1); | |
4804 | *p = ereg->number; | |
4805 | break; | |
4806 | case EXT_AUX_REGISTER: | |
4807 | p = frag_more (1); | |
4808 | *p = 6 + name_len + 1; | |
4809 | p = frag_more (1); | |
4810 | *p = EXT_AUX_REGISTER; | |
4811 | p = frag_more (1); | |
4812 | *p = (ereg->number >> 24) & 0xff; | |
4813 | p = frag_more (1); | |
4814 | *p = (ereg->number >> 16) & 0xff; | |
4815 | p = frag_more (1); | |
4816 | *p = (ereg->number >> 8) & 0xff; | |
4817 | p = frag_more (1); | |
4818 | *p = (ereg->number) & 0xff; | |
4819 | break; | |
4820 | default: | |
4821 | break; | |
4822 | } | |
4823 | ||
4824 | p = frag_more (name_len + 1); | |
4825 | strcpy (p, ereg->name); | |
4826 | ||
4827 | subseg_set (old_sec, old_subsec); | |
4828 | } | |
4829 | ||
4830 | /* Handler .extCoreRegister pseudo-op. */ | |
4831 | ||
4832 | static void | |
4833 | arc_extcorereg (int opertype) | |
4834 | { | |
4835 | extRegister_t ereg; | |
4836 | struct arc_aux_reg *auxr; | |
4837 | const char *retval; | |
4838 | struct arc_flag_operand *ccode; | |
4839 | ||
4840 | memset (&ereg, 0, sizeof (ereg)); | |
06911889 CZ |
4841 | if (!tokenize_extregister (&ereg, opertype)) |
4842 | return; | |
f36e33da CZ |
4843 | |
4844 | switch (opertype) | |
4845 | { | |
4846 | case EXT_CORE_REGISTER: | |
4847 | /* Core register. */ | |
4848 | if (ereg.number > 60) | |
4849 | as_bad (_("core register %s value (%d) too large"), ereg.name, | |
4850 | ereg.number); | |
4851 | declare_register (ereg.name, ereg.number); | |
4852 | break; | |
4853 | case EXT_AUX_REGISTER: | |
4854 | /* Auxiliary register. */ | |
add39d23 | 4855 | auxr = XNEW (struct arc_aux_reg); |
f36e33da | 4856 | auxr->name = ereg.name; |
bb65a718 | 4857 | auxr->cpu = selected_cpu.flags; |
f36e33da CZ |
4858 | auxr->subclass = NONE; |
4859 | auxr->address = ereg.number; | |
4860 | retval = hash_insert (arc_aux_hash, auxr->name, (void *) auxr); | |
4861 | if (retval) | |
4862 | as_fatal (_("internal error: can't hash aux register '%s': %s"), | |
4863 | auxr->name, retval); | |
4864 | break; | |
4865 | case EXT_COND_CODE: | |
4866 | /* Condition code. */ | |
4867 | if (ereg.number > 31) | |
4868 | as_bad (_("condition code %s value (%d) too large"), ereg.name, | |
4869 | ereg.number); | |
4870 | ext_condcode.size ++; | |
4871 | ext_condcode.arc_ext_condcode = | |
add39d23 TS |
4872 | XRESIZEVEC (struct arc_flag_operand, ext_condcode.arc_ext_condcode, |
4873 | ext_condcode.size + 1); | |
f36e33da CZ |
4874 | if (ext_condcode.arc_ext_condcode == NULL) |
4875 | as_fatal (_("Virtual memory exhausted")); | |
4876 | ||
4877 | ccode = ext_condcode.arc_ext_condcode + ext_condcode.size - 1; | |
4878 | ccode->name = ereg.name; | |
4879 | ccode->code = ereg.number; | |
4880 | ccode->bits = 5; | |
4881 | ccode->shift = 0; | |
4882 | ccode->favail = 0; /* not used. */ | |
4883 | ccode++; | |
4884 | memset (ccode, 0, sizeof (struct arc_flag_operand)); | |
4885 | break; | |
4886 | default: | |
4887 | as_bad (_("Unknown extension")); | |
4888 | break; | |
4889 | } | |
4890 | create_extcore_section (&ereg, opertype); | |
4891 | } | |
4892 | ||
53a346d8 CZ |
4893 | /* Parse a .arc_attribute directive. */ |
4894 | ||
4895 | static void | |
4896 | arc_attribute (int ignored ATTRIBUTE_UNUSED) | |
4897 | { | |
4898 | int tag = obj_elf_vendor_attribute (OBJ_ATTR_PROC); | |
4899 | ||
4900 | if (tag < NUM_KNOWN_OBJ_ATTRIBUTES) | |
4901 | attributes_set_explicitly[tag] = TRUE; | |
4902 | } | |
4903 | ||
4904 | /* Set an attribute if it has not already been set by the user. */ | |
4905 | ||
4906 | static void | |
4907 | arc_set_attribute_int (int tag, int value) | |
4908 | { | |
4909 | if (tag < 1 | |
4910 | || tag >= NUM_KNOWN_OBJ_ATTRIBUTES | |
4911 | || !attributes_set_explicitly[tag]) | |
4912 | bfd_elf_add_proc_attr_int (stdoutput, tag, value); | |
4913 | } | |
4914 | ||
4915 | static void | |
4916 | arc_set_attribute_string (int tag, const char *value) | |
4917 | { | |
4918 | if (tag < 1 | |
4919 | || tag >= NUM_KNOWN_OBJ_ATTRIBUTES | |
4920 | || !attributes_set_explicitly[tag]) | |
4921 | bfd_elf_add_proc_attr_string (stdoutput, tag, value); | |
4922 | } | |
4923 | ||
4924 | /* Allocate and concatenate two strings. s1 can be NULL but not | |
4925 | s2. s1 pointer is freed at end of this procedure. */ | |
4926 | ||
4927 | static char * | |
4928 | arc_stralloc (char * s1, const char * s2) | |
4929 | { | |
4930 | char * p; | |
4931 | int len = 0; | |
4932 | ||
4933 | if (s1) | |
4934 | len = strlen (s1) + 1; | |
4935 | ||
4936 | /* Only s1 can be null. */ | |
4937 | gas_assert (s2); | |
4938 | len += strlen (s2) + 1; | |
4939 | ||
4940 | p = (char *) xmalloc (len); | |
4941 | if (p == NULL) | |
4942 | as_fatal (_("Virtual memory exhausted")); | |
4943 | ||
4944 | if (s1) | |
4945 | { | |
4946 | strcpy (p, s1); | |
4947 | strcat (p, ","); | |
4948 | strcat (p, s2); | |
4949 | free (s1); | |
4950 | } | |
4951 | else | |
4952 | strcpy (p, s2); | |
4953 | ||
4954 | return p; | |
4955 | } | |
4956 | ||
4957 | /* Set the public ARC object attributes. */ | |
4958 | ||
4959 | static void | |
4960 | arc_set_public_attributes (void) | |
4961 | { | |
4962 | int base = 0; | |
4963 | char *s = NULL; | |
4964 | unsigned int i; | |
4965 | ||
4966 | /* Tag_ARC_CPU_name. */ | |
4967 | arc_set_attribute_string (Tag_ARC_CPU_name, selected_cpu.name); | |
4968 | ||
4969 | /* Tag_ARC_CPU_base. */ | |
4970 | switch (selected_cpu.eflags & EF_ARC_MACH_MSK) | |
4971 | { | |
4972 | case E_ARC_MACH_ARC600: | |
4973 | case E_ARC_MACH_ARC601: | |
4974 | base = TAG_CPU_ARC6xx; | |
4975 | break; | |
4976 | case E_ARC_MACH_ARC700: | |
4977 | base = TAG_CPU_ARC7xx; | |
4978 | break; | |
4979 | case EF_ARC_CPU_ARCV2EM: | |
4980 | base = TAG_CPU_ARCEM; | |
4981 | break; | |
4982 | case EF_ARC_CPU_ARCV2HS: | |
4983 | base = TAG_CPU_ARCHS; | |
4984 | break; | |
4985 | default: | |
4986 | base = 0; | |
4987 | break; | |
4988 | } | |
4989 | if (attributes_set_explicitly[Tag_ARC_CPU_base] | |
4990 | && (base != bfd_elf_get_obj_attr_int (stdoutput, OBJ_ATTR_PROC, | |
4991 | Tag_ARC_CPU_base))) | |
4992 | as_warn (_("Overwrite explicitly set Tag_ARC_CPU_base")); | |
4993 | bfd_elf_add_proc_attr_int (stdoutput, Tag_ARC_CPU_base, base); | |
4994 | ||
4995 | /* Tag_ARC_ABI_osver. */ | |
4996 | if (attributes_set_explicitly[Tag_ARC_ABI_osver]) | |
4997 | { | |
4998 | int val = bfd_elf_get_obj_attr_int (stdoutput, OBJ_ATTR_PROC, | |
4999 | Tag_ARC_ABI_osver); | |
5000 | ||
5001 | selected_cpu.eflags = ((selected_cpu.eflags & ~EF_ARC_OSABI_MSK) | |
5002 | | (val & 0x0f << 8)); | |
5003 | } | |
5004 | else | |
5005 | { | |
5006 | arc_set_attribute_int (Tag_ARC_ABI_osver, E_ARC_OSABI_CURRENT >> 8); | |
5007 | } | |
5008 | ||
5009 | /* Tag_ARC_ISA_config. */ | |
5010 | arc_check_feature(); | |
5011 | ||
5012 | for (i = 0; i < ARRAY_SIZE (feature_list); i++) | |
5013 | if (selected_cpu.features & feature_list[i].feature) | |
5014 | s = arc_stralloc (s, feature_list[i].attr); | |
5015 | ||
5016 | if (s) | |
5017 | arc_set_attribute_string (Tag_ARC_ISA_config, s); | |
5018 | ||
5019 | /* Tag_ARC_ISA_mpy_option. */ | |
5020 | arc_set_attribute_int (Tag_ARC_ISA_mpy_option, mpy_option); | |
5021 | ||
5022 | /* Tag_ARC_ABI_pic. */ | |
5023 | arc_set_attribute_int (Tag_ARC_ABI_pic, pic_option); | |
5024 | ||
5025 | /* Tag_ARC_ABI_sda. */ | |
5026 | arc_set_attribute_int (Tag_ARC_ABI_sda, sda_option); | |
5027 | ||
5028 | /* Tag_ARC_ABI_tls. */ | |
5029 | arc_set_attribute_int (Tag_ARC_ABI_tls, tls_option); | |
db1e1b45 | 5030 | |
5031 | /* Tag_ARC_ATR_version. */ | |
5032 | arc_set_attribute_int (Tag_ARC_ATR_version, 1); | |
63741043 | 5033 | |
5034 | /* Tag_ARC_ABI_rf16. */ | |
5035 | if (attributes_set_explicitly[Tag_ARC_ABI_rf16] | |
5036 | && bfd_elf_get_obj_attr_int (stdoutput, OBJ_ATTR_PROC, | |
5037 | Tag_ARC_ABI_rf16) | |
5038 | && !rf16_only) | |
5039 | { | |
5040 | as_warn (_("Overwrite explicitly set Tag_ARC_ABI_rf16 to full " | |
5041 | "register file")); | |
5042 | bfd_elf_add_proc_attr_int (stdoutput, Tag_ARC_ABI_rf16, 0); | |
5043 | } | |
53a346d8 CZ |
5044 | } |
5045 | ||
5046 | /* Add the default contents for the .ARC.attributes section. */ | |
5047 | ||
5048 | void | |
5049 | arc_md_end (void) | |
5050 | { | |
5051 | arc_set_public_attributes (); | |
5052 | ||
5053 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_arc, selected_cpu.mach)) | |
5054 | as_fatal (_("could not set architecture and machine")); | |
5055 | ||
5056 | bfd_set_private_flags (stdoutput, selected_cpu.eflags); | |
5057 | } | |
5058 | ||
5059 | void arc_copy_symbol_attributes (symbolS *dest, symbolS *src) | |
5060 | { | |
5061 | ARC_GET_FLAG (dest) = ARC_GET_FLAG (src); | |
5062 | } | |
5063 | ||
5064 | int arc_convert_symbolic_attribute (const char *name) | |
5065 | { | |
5066 | static const struct | |
5067 | { | |
5068 | const char * name; | |
5069 | const int tag; | |
5070 | } | |
5071 | attribute_table[] = | |
5072 | { | |
5073 | #define T(tag) {#tag, tag} | |
5074 | T (Tag_ARC_PCS_config), | |
5075 | T (Tag_ARC_CPU_base), | |
5076 | T (Tag_ARC_CPU_variation), | |
5077 | T (Tag_ARC_CPU_name), | |
5078 | T (Tag_ARC_ABI_rf16), | |
5079 | T (Tag_ARC_ABI_osver), | |
5080 | T (Tag_ARC_ABI_sda), | |
5081 | T (Tag_ARC_ABI_pic), | |
5082 | T (Tag_ARC_ABI_tls), | |
5083 | T (Tag_ARC_ABI_enumsize), | |
5084 | T (Tag_ARC_ABI_exceptions), | |
5085 | T (Tag_ARC_ABI_double_size), | |
5086 | T (Tag_ARC_ISA_config), | |
5087 | T (Tag_ARC_ISA_apex), | |
db1e1b45 | 5088 | T (Tag_ARC_ISA_mpy_option), |
5089 | T (Tag_ARC_ATR_version) | |
53a346d8 CZ |
5090 | #undef T |
5091 | }; | |
5092 | unsigned int i; | |
5093 | ||
5094 | if (name == NULL) | |
5095 | return -1; | |
5096 | ||
5097 | for (i = 0; i < ARRAY_SIZE (attribute_table); i++) | |
5098 | if (streq (name, attribute_table[i].name)) | |
5099 | return attribute_table[i].tag; | |
5100 | ||
5101 | return -1; | |
5102 | } | |
5103 | ||
b99747ae CZ |
5104 | /* Local variables: |
5105 | eval: (c-set-style "gnu") | |
5106 | indent-tabs-mode: t | |
5107 | End: */ |