Commit | Line | Data |
---|---|---|
b8891f8d AJ |
1 | /* tc-csky.c -- Assembler for C-SKY |
2 | Copyright (C) 1989-2018 Free Software Foundation, Inc. | |
3 | Created by Lifang Xia (lifang_xia@c-sky.com) | |
4 | Contributed by C-SKY Microsystems and Mentor Graphics. | |
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 | |
10 | the Free Software Foundation; either version 3, or (at your option) | |
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 | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA | |
21 | 02110-1301, USA. */ | |
22 | ||
23 | #include "as.h" | |
24 | #include <limits.h> | |
25 | #include <stdint.h> | |
26 | #include <stdarg.h> | |
27 | #include <ctype.h> | |
28 | #include "safe-ctype.h" | |
29 | #include "subsegs.h" | |
30 | #include "obstack.h" | |
31 | #include "libiberty.h" | |
32 | #include "struc-symbol.h" | |
33 | ||
34 | #ifdef OBJ_ELF | |
35 | #include "elf/csky.h" | |
36 | #include "dw2gencfi.h" | |
37 | #endif | |
38 | #include "tc-csky.h" | |
39 | #include "dwarf2dbg.h" | |
40 | ||
41 | #define BUILD_AS 1 | |
42 | ||
43 | #define OPCODE_MAX_LEN 20 | |
44 | #define HAS_SUB_OPERAND 0xfffffffful | |
45 | ||
46 | /* This value is just for lrw to distinguish "[]" label. */ | |
47 | #define NEED_OUTPUT_LITERAL 1 | |
48 | ||
49 | #define IS_EXTERNAL_SYM(sym, sec) (S_GET_SEGMENT (sym) != sec) | |
50 | #define IS_SUPPORT_OPCODE16(opcode) (opcode->isa_flag16 | isa_flag) | |
51 | #define IS_SUPPORT_OPCODE32(opcode) (opcode->isa_flag32 | isa_flag) | |
52 | ||
53 | ||
54 | #define KB * 1024 | |
55 | #define MB KB * 1024 | |
56 | #define GB MB * 1024 | |
57 | ||
58 | /* Define DSP version flags. For different CPU, the version of DSP | |
59 | instructions may be different. */ | |
60 | #define CSKY_DSP_FLAG_V1 (1 << 0) /* Normal DSP instructions. */ | |
61 | #define CSKY_DSP_FLAG_V2 (1 << 1) /* CK803S enhanced DSP. */ | |
62 | ||
63 | /* Literal pool related macros. */ | |
64 | /* 1024 - 1 entry - 2 byte rounding. */ | |
65 | #define v1_SPANPANIC (998) | |
66 | #define v1_SPANCLOSE (900) | |
67 | #define v1_SPANEXIT (600) | |
68 | #define v2_SPANPANIC (1024 - 4) | |
69 | ||
70 | /* 1024 is flrw offset. | |
71 | 24 is the biggest size for single instruction. | |
72 | for lrw16 (3+7, 512 bytes). */ | |
73 | #define v2_SPANCLOSE (512 - 24) | |
74 | ||
75 | /* For lrw16, 112 average size for a function. */ | |
76 | #define v2_SPANEXIT (512 - 112) | |
77 | ||
78 | /* For lrw16 (3+7, 512 bytes). */ | |
79 | #define v2_SPANCLOSE_ELRW (1016 - 24) | |
80 | ||
81 | /* For lrw16, 112 average size for a function. */ | |
82 | #define v2_SPANEXIT_ELRW (1016 - 112) | |
83 | #define MAX_POOL_SIZE (1024 / 4) | |
84 | #define POOL_END_LABEL ".LE" | |
85 | #define POOL_START_LABEL ".LS" | |
86 | ||
87 | /* Used in v1_relax_table. */ | |
88 | /* These are the two types of relaxable instruction. */ | |
89 | #define COND_JUMP 1 | |
90 | #define UNCD_JUMP 2 | |
91 | #define COND_JUMP_PIC 3 | |
92 | #define UNCD_JUMP_PIC 4 | |
93 | ||
94 | #define UNDEF_DISP 0 | |
95 | #define DISP12 1 | |
96 | #define DISP32 2 | |
97 | #define UNDEF_WORD_DISP 3 | |
98 | ||
99 | #define C12_LEN 2 | |
100 | /* Allow for align: bt/jmpi/.long + align. */ | |
101 | #define C32_LEN 10 | |
102 | /* Allow for align: bt/subi/stw/bsr/lrw/add/ld/addi/jmp/.long + align. */ | |
103 | #define C32_LEN_PIC 24 | |
104 | #define U12_LEN 2 | |
105 | /* Allow for align: jmpi/.long + align. */ | |
106 | #define U32_LEN 8 | |
107 | /* Allow for align: subi/stw/bsr/lrw/add/ld/addi/jmp/.long + align. */ | |
108 | #define U32_LEN_PIC 22 | |
109 | ||
110 | #define C(what,length) (((what) << 2) + (length)) | |
111 | #define UNCD_JUMP_S (do_pic ? UNCD_JUMP_PIC : UNCD_JUMP) | |
112 | #define COND_JUMP_S (do_pic ? COND_JUMP_PIC : COND_JUMP) | |
113 | #define U32_LEN_S (do_pic ? U32_LEN_PIC : U32_LEN) | |
114 | #define C32_LEN_S (do_pic ? C32_LEN_PIC : C32_LEN) | |
115 | ||
116 | /* Used in v2_relax_table. */ | |
117 | #define COND_DISP10_LEN 2 /* bt/bf_16. */ | |
118 | #define COND_DISP16_LEN 4 /* bt/bf_32. */ | |
119 | ||
120 | #define SCOND_DISP10_LEN 2 /* bt/bf_16, for CK801 only. */ | |
121 | #define SCOND_DISP16_LEN 6 /* !(bt/bf_16) + br_32. */ | |
122 | ||
123 | #define UNCD_DISP10_LEN 2 /* br_16. */ | |
124 | #define UNCD_DISP16_LEN 4 /* br_32. */ | |
125 | #define UNCD_DISP26_LEN 4 /* br32_old. */ | |
126 | ||
127 | #define JCOND_DISP10_LEN 2 /* bt/bf_16. */ | |
128 | #define JCOND_DISP16_LEN 4 /* bt/bf_32. */ | |
129 | #define JCOND_DISP32_LEN 12 /* !(bt/bf_16)/jmpi 32/.align 2/literal 4. */ | |
130 | #define JCOND_DISP26_LEN 8 /* bt/bf_32/br_32 old. */ | |
131 | ||
132 | #define JUNCD_DISP26_LEN 4 /* bt/bf_32 old. */ | |
133 | #define JUNCD_DISP10_LEN 2 /* br_16. */ | |
134 | #define JUNCD_DISP16_LEN 4 /* bt/bf_32. */ | |
135 | #define JUNCD_DISP32_LEN 10 /* jmpi_32/.align 2/literal 4/ CHANGED!. */ | |
136 | #define JCOMP_DISP26_LEN 8 /* bne_32/br_32 old. */ | |
137 | ||
138 | #define JCOMP_DISP16_LEN 4 /* bne_32 old. */ | |
139 | #define JCOMPZ_DISP16_LEN 4 /* bhlz_32. */ | |
140 | #define JCOMPZ_DISP32_LEN 14 /* bsz_32/jmpi 32/.align 2/literal 4. */ | |
141 | #define JCOMPZ_DISP26_LEN 8 /* bsz_32/br_32 old. */ | |
142 | #define JCOMP_DISP32_LEN 14 /* be_32/jmpi_32/.align 2/literal old. */ | |
143 | ||
144 | #define BSR_DISP10_LEN 2 /* bsr_16. */ | |
145 | #define BSR_DISP26_LEN 4 /* bsr_32. */ | |
146 | #define LRW_DISP7_LEN 2 /* lrw16. */ | |
147 | #define LRW_DISP16_LEN 4 /* lrw32. */ | |
148 | ||
149 | /* Declare worker functions. */ | |
150 | bfd_boolean v1_work_lrw (void); | |
151 | bfd_boolean v1_work_jbsr (void); | |
152 | bfd_boolean v1_work_fpu_fo (void); | |
153 | bfd_boolean v1_work_fpu_fo_fc (void); | |
154 | bfd_boolean v1_work_fpu_write (void); | |
155 | bfd_boolean v1_work_fpu_read (void); | |
156 | bfd_boolean v1_work_fpu_writed (void); | |
157 | bfd_boolean v1_work_fpu_readd (void); | |
158 | bfd_boolean v2_work_istack (void); | |
159 | bfd_boolean v2_work_btsti (void); | |
160 | bfd_boolean v2_work_addi (void); | |
161 | bfd_boolean v2_work_subi (void); | |
162 | bfd_boolean v2_work_add_sub (void); | |
163 | bfd_boolean v2_work_rotlc (void); | |
164 | bfd_boolean v2_work_bgeni (void); | |
165 | bfd_boolean v2_work_not (void); | |
166 | bfd_boolean v2_work_jbtf (void); | |
167 | bfd_boolean v2_work_jbr (void); | |
168 | bfd_boolean v2_work_lrw (void); | |
169 | bfd_boolean v2_work_lrsrsw (void); | |
170 | bfd_boolean v2_work_jbsr (void); | |
171 | bfd_boolean v2_work_jsri (void); | |
172 | bfd_boolean v2_work_movih (void); | |
173 | bfd_boolean v2_work_ori (void); | |
174 | bfd_boolean float_work_fmovi (void); | |
175 | bfd_boolean dsp_work_bloop (void); | |
176 | ||
177 | /* csky-opc.h must be included after workers are declared. */ | |
178 | #include "opcodes/csky-opc.h" | |
179 | #include "opcode/csky.h" | |
180 | ||
181 | enum | |
182 | { | |
183 | RELAX_NONE = 0, | |
184 | RELAX_OVERFLOW, | |
185 | ||
186 | COND_DISP10 = 20, /* bt/bf_16. */ | |
187 | COND_DISP16, /* bt/bf_32. */ | |
188 | ||
189 | SCOND_DISP10, /* br_16 */ | |
190 | SCOND_DISP16, /* !(bt/bf_32) + br_32. */ | |
191 | ||
192 | UNCD_DISP10, /* br_16. */ | |
193 | UNCD_DISP16, /* br_32. */ | |
194 | ||
195 | JCOND_DISP10, /* bt/bf_16. */ | |
196 | JCOND_DISP16, /* bt/bf_32. */ | |
197 | JCOND_DISP32, /* !(bt/bf_32)/jmpi + literal. */ | |
198 | ||
199 | JUNCD_DISP10, /* br_16. */ | |
200 | JUNCD_DISP16, /* br_32. */ | |
201 | JUNCD_DISP32, /* jmpi + literal. */ | |
202 | ||
203 | JCOMPZ_DISP16, /* bez/bnez/bhz/blsz/blz/bhsz. */ | |
204 | JCOMPZ_DISP32, /* !(jbez/jbnez/jblsz/jblz/jbhsz) + jmpi + literal. */ | |
205 | ||
206 | BSR_DISP26, /* bsr_32. */ | |
207 | ||
208 | LRW_DISP7, /* lrw16. */ | |
209 | LRW2_DISP8, /* lrw16, -mno-bsr16,8 bit offset. */ | |
210 | LRW_DISP16, /* lrw32. */ | |
211 | }; | |
212 | ||
213 | unsigned int mach_flag = 0; | |
214 | unsigned int arch_flag = 0; | |
215 | unsigned int other_flag = 0; | |
216 | unsigned int isa_flag = 0; | |
217 | unsigned int dsp_flag = 0; | |
218 | ||
219 | typedef struct stack_size_entry | |
220 | { | |
221 | struct stack_size_entry *next; | |
222 | symbolS *function; | |
223 | unsigned int stack_size; | |
224 | } stack_size_entry; | |
225 | ||
226 | struct csky_arch_info | |
227 | { | |
228 | const char *name; | |
229 | unsigned int arch_flag; | |
230 | unsigned int bfd_mach_flag; | |
231 | }; | |
232 | ||
233 | struct csky_cpu_info | |
234 | { | |
235 | const char *name; | |
236 | unsigned int mach_flag; | |
237 | unsigned int isa_flag; | |
238 | }; | |
239 | ||
240 | typedef enum | |
241 | { | |
242 | INSN_OPCODE, | |
243 | INSN_OPCODE16F, | |
244 | INSN_OPCODE32F, | |
245 | } inst_flag; | |
246 | ||
247 | /* Macro information. */ | |
248 | struct csky_macro_info | |
249 | { | |
250 | const char *name; | |
251 | /* How many operands : if operands == 5, all of 1,2,3,4 are ok. */ | |
252 | long oprnd_num; | |
253 | int isa_flag; | |
254 | /* Do the work. */ | |
255 | void (*handle_func)(void); | |
256 | }; | |
257 | ||
258 | struct csky_insn_info | |
259 | { | |
260 | /* Name of the opcode. */ | |
261 | char *name; | |
262 | /* Output instruction. */ | |
263 | unsigned int inst; | |
264 | /* Pointer for frag. */ | |
265 | char *output; | |
266 | /* End of instruction. */ | |
267 | char *opcode_end; | |
268 | /* Flag for INSN_OPCODE16F, INSN_OPCODE32F, INSN_OPCODE, INSN_MACRO. */ | |
269 | inst_flag flag_force; | |
270 | /* Operand number. */ | |
271 | int number; | |
272 | struct csky_opcode *opcode; | |
273 | struct csky_macro_info *macro; | |
274 | /* Insn size for check_literal. */ | |
275 | unsigned int isize; | |
276 | /* Max size of insn for relax frag_var. */ | |
277 | unsigned int max; | |
278 | /* Indicates which element is in csky_opcode_info op[] array. */ | |
279 | int opcode_idx; | |
280 | /* The value of each operand in instruction when layout. */ | |
281 | int idx; | |
282 | int val[MAX_OPRND_NUM]; | |
283 | struct relax_info | |
284 | { | |
285 | int max; | |
286 | int var; | |
287 | int subtype; | |
288 | } relax; | |
289 | /* The following are used for constant expressions. */ | |
290 | expressionS e1; | |
291 | expressionS e2; | |
292 | }; | |
293 | ||
294 | /* Literal pool data structures. */ | |
295 | struct literal | |
296 | { | |
297 | unsigned short refcnt; | |
298 | unsigned char ispcrel; | |
299 | unsigned char unused; | |
300 | bfd_reloc_code_real_type r_type; | |
301 | expressionS e; | |
302 | struct tls_addend tls_addend; | |
303 | unsigned char isdouble; | |
304 | uint64_t dbnum; | |
305 | }; | |
306 | ||
307 | static void csky_idly (void); | |
308 | static void csky_rolc (void); | |
309 | static void csky_sxtrb (void); | |
310 | static void csky_movtf (void); | |
311 | static void csky_addc64 (void); | |
312 | static void csky_subc64 (void); | |
313 | static void csky_or64 (void); | |
314 | static void csky_xor64 (void); | |
315 | static void csky_neg (void); | |
316 | static void csky_rsubi (void); | |
317 | static void csky_arith (void); | |
318 | static void csky_decne (void); | |
319 | static void csky_lrw (void); | |
320 | ||
321 | static enum bfd_reloc_code_real insn_reloc; | |
322 | ||
323 | /* Assembler operand parse errors use these identifiers. */ | |
324 | ||
325 | enum error_number | |
326 | { | |
327 | /* The following are errors. */ | |
328 | ERROR_CREG_ILLEGAL = 0, | |
329 | ERROR_REG_OVER_RANGE, | |
330 | ERROR_GREG_ILLEGAL, | |
331 | ERROR_802J_REG_OVER_RANGE, | |
332 | ERROR_REG_FORMAT, | |
333 | ERROR_REG_LIST, | |
334 | ERROR_IMM_ILLEGAL, | |
335 | ERROR_IMM_OVERFLOW, /* 5 */ | |
336 | ERROR_IMM_POWER, | |
337 | ERROR_JMPIX_OVER_RANGE, | |
338 | ERROR_EXP_CREG, | |
339 | ERROR_EXP_GREG, | |
340 | ERROR_EXP_CONSTANT, | |
341 | ERROR_EXP_EVEN_FREG, | |
342 | ERROR_RELOC_ILLEGAL, | |
343 | ERROR_MISSING_OPERAND, /* 10 */ | |
344 | ERROR_MISSING_COMMA, | |
345 | ERROR_MISSING_LBRACKET, | |
346 | ERROR_MISSING_RBRACKET, | |
347 | ERROR_MISSING_LSQUARE_BRACKETS, | |
348 | ERROR_MISSING_RSQUARE_BRACKETS, /* 15 */ | |
349 | ERROR_MISSING_LANGLE_BRACKETS, | |
350 | ERROR_MISSING_RANGLE_BRACKETS, | |
351 | ERROR_OFFSET_UNALIGNED, | |
352 | ERROR_BAD_END, | |
353 | ERROR_UNDEFINE, | |
354 | ERROR_CPREG_ILLEGAL, /* 20 */ | |
355 | ERROR_OPCODE_PSRBIT, | |
356 | ERROR_OPERANDS_ILLEGAL, | |
357 | ERROR_OPERANDS_NUMBER, | |
358 | ERROR_OPCODE_ILLEGAL, | |
359 | ||
360 | /* The following are warnings. */ | |
361 | WARNING_OPTIONS, | |
362 | WARNING_IDLY, | |
363 | ||
364 | /* Error and warning end. */ | |
365 | ERROR_NONE, | |
366 | }; | |
367 | ||
368 | /* Global error state. ARG1 and ARG2 are opaque data interpreted | |
369 | as appropriate for the error code. */ | |
370 | ||
371 | struct csky_error_state | |
372 | { | |
373 | enum error_number err_num; | |
374 | int opnum; | |
375 | const void *arg1; | |
376 | const void *arg2; | |
377 | } error_state; | |
378 | ||
379 | /* This macro is used to set error number and arg1 in the global state. */ | |
380 | ||
381 | #define SET_ERROR_NUMBER(err, msg) \ | |
382 | do { \ | |
383 | if (error_state.err_num > err) \ | |
384 | { \ | |
385 | error_state.err_num = err; \ | |
386 | error_state.arg1 = (void *)msg; \ | |
387 | } \ | |
388 | } while (0) | |
389 | ||
390 | ||
391 | /* Map error identifiers onto a format string, which will use | |
392 | arg1 and arg2 from the global error state. */ | |
393 | struct csky_error_format_map | |
394 | { | |
395 | enum error_number num; | |
396 | const char *fmt; | |
397 | }; | |
398 | ||
399 | static const struct csky_error_format_map err_formats[] = | |
400 | { | |
401 | {ERROR_CREG_ILLEGAL, "Operand %d error: control register is illegal."}, | |
402 | {ERROR_REG_OVER_RANGE, "Operand %d error: r%d register is over range."}, | |
403 | {ERROR_GREG_ILLEGAL, "Operand %d error: general register is illegal."}, | |
404 | {ERROR_802J_REG_OVER_RANGE, "Operand %d register %s out of range (802j only has registers:0-15,23,24,25,30)"}, | |
405 | {ERROR_REG_FORMAT, "Operand %d error: %s."}, | |
406 | {ERROR_REG_LIST, "Register list format is illegal."}, | |
407 | {ERROR_IMM_ILLEGAL, "Operand %d is not an immediate."}, | |
408 | {ERROR_IMM_OVERFLOW, "Operand %d immediate is overflow."}, | |
409 | {ERROR_IMM_POWER, "immediate %d is not a power of two"}, | |
410 | {ERROR_JMPIX_OVER_RANGE, "The second operand must be 16/24/32/40"}, | |
411 | {ERROR_EXP_CREG, "Operand %d error: control register is expected."}, | |
412 | {ERROR_EXP_GREG, "Operand %d error: general register is expected."}, | |
413 | {ERROR_EXP_CONSTANT, "Operand %d error: constant is expected."}, | |
414 | {ERROR_EXP_EVEN_FREG, "Operand %d error: even float register is expected."}, | |
415 | {ERROR_RELOC_ILLEGAL, "@%s reloc is not supported"}, | |
416 | {ERROR_MISSING_OPERAND, "Operand %d is missing."}, | |
417 | {ERROR_MISSING_COMMA, "Missing ','"}, | |
418 | {ERROR_MISSING_LBRACKET, "Missing '('"}, | |
419 | {ERROR_MISSING_RBRACKET, "Missing ')'"}, | |
420 | {ERROR_MISSING_LSQUARE_BRACKETS, "Missing '['"}, | |
421 | {ERROR_MISSING_RSQUARE_BRACKETS, "Missing ']'"}, | |
422 | {ERROR_MISSING_LANGLE_BRACKETS, "Missing '<'"}, | |
423 | {ERROR_MISSING_RANGLE_BRACKETS, "Missing '>'"}, | |
424 | {ERROR_OFFSET_UNALIGNED, "Operand %d is unaligned. It must be %d aligned!"}, | |
425 | {ERROR_BAD_END, "Operands mismatch, it has a bad end: %s"}, | |
426 | {ERROR_UNDEFINE, NULL}, | |
427 | {ERROR_CPREG_ILLEGAL, "Operand %d illegal, expect a cpreg(cpr0-cpr63)."}, | |
428 | {ERROR_OPCODE_PSRBIT, "The operands must be 'ie'/'ee'/'fe'."}, | |
429 | {ERROR_OPERANDS_ILLEGAL, "Operands mismatch: %s."}, | |
430 | {ERROR_OPERANDS_NUMBER, "Operands number mismatch, %d operands expected."}, | |
431 | {ERROR_OPCODE_ILLEGAL, "The instruction is not recognized."}, | |
432 | {WARNING_OPTIONS, "Option %s is not support in %s."}, | |
433 | {WARNING_IDLY, "idly %d is encoded to: idly 4 "}, | |
434 | {ERROR_NONE, "There is no error."}, | |
435 | }; | |
436 | ||
437 | static int do_pic = 0; /* for jbr/jbf/jbt relax jmpi reloc. */ | |
438 | static int do_pff = -1; /* for insert two br ahead of literals. */ | |
439 | static int do_force2bsr = -1; /* for jbsr->bsr. */ | |
440 | static int do_jsri2bsr = 1; /* for jsri->bsr. */ | |
441 | static int do_nolrw = 0; /* lrw to movih & ori, only for V2. */ | |
442 | static int do_long_jump = -1; /* control if jbf,jbt,jbr relax to jmpi. */ | |
443 | static int do_extend_lrw = -1; /* delete bsr16 in both two options, | |
444 | add btesti16, lrw offset +1 in -melrw. */ | |
445 | static int do_func_dump = 0; /* dump literals after every function. */ | |
446 | static int do_br_dump = 1; /* work for -mabr/-mno-abr, control the literals dump. */ | |
447 | static int do_intr_stack = -1; /* control interrupt stack module, 801&802&803 | |
448 | default on, 807&810, default off. */ | |
449 | ||
450 | #ifdef INCLUDE_BRANCH_STUB | |
451 | static int do_use_branchstub = -1; | |
452 | #else | |
453 | static int do_use_branchstub = 0; | |
454 | #endif | |
455 | ||
456 | /* These are only used for options parsing. Values are bitmasks and are | |
457 | OR'ed into the processor flag bits in md_begin. */ | |
458 | static int do_opt_mmp = 0; | |
459 | static int do_opt_mcp = 0; | |
460 | static int do_opt_mcache = 0; | |
461 | static int do_opt_msecurity = 0; | |
462 | static int do_opt_mhard_float = 0; | |
463 | static int do_opt_mtrust = 0; | |
464 | static int do_opt_mdsp = 0; | |
465 | static int do_opt_medsp = 0; | |
466 | static int do_opt_mvdsp = 0; | |
467 | ||
468 | const relax_typeS *md_relax_table = NULL; | |
469 | struct literal *literal_insn_offset; | |
470 | static struct literal litpool[MAX_POOL_SIZE]; | |
471 | static unsigned poolsize = 0; | |
472 | static unsigned poolnumber = 0; | |
473 | static unsigned long poolspan = 0; | |
474 | static unsigned int SPANPANIC; | |
475 | static unsigned int SPANCLOSE; | |
476 | static unsigned int SPANEXIT; | |
477 | ||
478 | static stack_size_entry *all_stack_size_data = NULL; | |
479 | static stack_size_entry **last_stack_size_data = &all_stack_size_data; | |
480 | ||
481 | /* Control by ".no_literal_dump N" | |
482 | * 1 : don't dump literal pool between insn1 and insnN+1 | |
483 | * 0 : do nothing. */ | |
484 | static int do_noliteraldump = 0; | |
485 | ||
486 | /* Label for current pool. */ | |
487 | static symbolS * poolsym; | |
488 | static char poolname[8]; | |
489 | ||
490 | static bfd_boolean mov_r1_before; | |
491 | static bfd_boolean mov_r1_after; | |
492 | ||
493 | const relax_typeS csky_relax_table [] = | |
494 | { | |
495 | /* C-SKY V1 relax table. */ | |
496 | {0, 0, 0, 0}, /* RELAX_NONE */ | |
497 | {0, 0, 0, 0}, /* RELAX_OVERFLOW */ | |
498 | {0, 0, 0, 0}, | |
499 | {0, 0, 0, 0}, | |
500 | ||
501 | /* COND_JUMP */ | |
502 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ | |
503 | { 2048, -2046, C12_LEN, C (COND_JUMP, DISP32) }, /* DISP12 */ | |
504 | { 0, 0, C32_LEN, 0 }, /* DISP32 */ | |
505 | { 0, 0, C32_LEN, 0 }, /* UNDEF_WORD_DISP */ | |
506 | ||
507 | /* UNCD_JUMP */ | |
508 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ | |
509 | { 2048, -2046, U12_LEN, C (UNCD_JUMP, DISP32) }, /* DISP12 */ | |
510 | { 0, 0, U32_LEN, 0 }, /* DISP32 */ | |
511 | { 0, 0, U32_LEN, 0 }, /* UNDEF_WORD_DISP */ | |
512 | ||
513 | /* COND_JUMP_PIC */ | |
514 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ | |
515 | { 2048, -2046, C12_LEN, C (COND_JUMP_PIC, DISP32) }, /* DISP12 */ | |
516 | { 0, 0, C32_LEN_PIC, 0 }, /* DISP32 */ | |
517 | { 0, 0, C32_LEN_PIC, 0 }, /* UNDEF_WORD_DISP */ | |
518 | ||
519 | /* UNCD_JUMP_PIC */ | |
520 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ | |
521 | { 2048, -2046, U12_LEN, C (UNCD_JUMP_PIC, DISP32) }, /* DISP12 */ | |
522 | { 0, 0, U32_LEN_PIC, 0 }, /* DISP32 */ | |
523 | { 0, 0, U32_LEN_PIC, 0 }, /* UNDEF_WORD_DISP */ | |
524 | ||
525 | /* C-SKY V2 relax table. */ | |
526 | /* forward backward length more */ | |
527 | { 1 KB - 2, -1 KB, COND_DISP10_LEN, COND_DISP16 }, /* COND_DISP10 */ | |
528 | { 64 KB - 2, -64 KB, COND_DISP16_LEN, RELAX_OVERFLOW }, /* COND_DISP16 */ | |
529 | ||
530 | { 1 KB - 2, -1 KB, SCOND_DISP10_LEN, SCOND_DISP16 }, /* SCOND_DISP10 */ | |
531 | { 64 KB - 2, -64 KB, SCOND_DISP16_LEN, RELAX_OVERFLOW }, /* SCOND_DISP16 */ | |
532 | ||
533 | { 1 KB - 2, -1 KB, UNCD_DISP10_LEN, UNCD_DISP16 }, /* UNCD_DISP10 */ | |
534 | { 64 KB - 2, -64 KB, UNCD_DISP16_LEN, RELAX_OVERFLOW }, /* UNCD_DISP16 */ | |
535 | ||
536 | { 1 KB - 2, -1 KB, JCOND_DISP10_LEN, JCOND_DISP16 }, /* JCOND_DISP10 */ | |
537 | { 64 KB - 2, -64 KB, JCOND_DISP16_LEN, JCOND_DISP32 }, /* JCOND_DISP16 */ | |
538 | { 0, 0, JCOND_DISP32_LEN, RELAX_NONE }, /* JCOND_DISP32 */ | |
539 | ||
540 | { 1 KB - 2, -1 KB, JUNCD_DISP10_LEN, JUNCD_DISP16 }, /* JUNCD_DISP10 */ | |
541 | { 64 KB - 2, -64 KB, JUNCD_DISP16_LEN, JUNCD_DISP32 }, /* JUNCD_DISP16 */ | |
542 | { 0, 0, JUNCD_DISP32_LEN, RELAX_NONE }, /* JUNCD_DISP32 */ | |
543 | ||
544 | { 64 KB - 2, -64 KB, JCOMPZ_DISP16_LEN, JCOMPZ_DISP32 }, /* JCOMPZ_DISP16 */ | |
545 | { 0, 0, JCOMPZ_DISP32_LEN, RELAX_NONE }, /* JCOMPZ_DISP32 */ | |
546 | ||
547 | { 64 MB - 2, -64 MB, BSR_DISP26_LEN, RELAX_OVERFLOW }, /* BSR_DISP26 */ | |
548 | ||
549 | { 508, 0, LRW_DISP7_LEN, LRW_DISP16 }, /* LRW_DISP7 */ | |
550 | { 1016, 0, LRW_DISP7_LEN, LRW_DISP16 }, /* LRW2_DISP8 */ | |
551 | { 64 KB, 0, LRW_DISP16_LEN, RELAX_OVERFLOW }, /* LRW_DISP16 */ | |
552 | ||
553 | }; | |
554 | ||
555 | static void csky_write_insn (char *ptr, valueT use, int nbytes); | |
556 | void md_number_to_chars (char * buf, valueT val, int n); | |
557 | long md_pcrel_from_section (fixS * fixP, segT seg); | |
558 | ||
559 | /* C-SKY architecture table. */ | |
560 | const struct csky_arch_info csky_archs[] = | |
561 | { | |
562 | {"ck510", CSKY_ARCH_510, bfd_mach_ck510}, | |
563 | {"ck610", CSKY_ARCH_610, bfd_mach_ck610}, | |
564 | {"ck801", CSKY_ARCH_801, bfd_mach_ck801}, | |
565 | {"ck802", CSKY_ARCH_802, bfd_mach_ck802}, | |
566 | {"ck803", CSKY_ARCH_803, bfd_mach_ck803}, | |
567 | #define CSKY_ARCH_807_BASE CSKY_ARCH_807 | CSKY_ARCH_DSP | |
568 | #define CSKY_ARCH_810_BASE CSKY_ARCH_810 | CSKY_ARCH_DSP | |
569 | {"ck807", CSKY_ARCH_807_BASE, bfd_mach_ck807}, | |
570 | {"ck810", CSKY_ARCH_810_BASE, bfd_mach_ck810}, | |
571 | {NULL, 0, 0} | |
572 | }; | |
573 | ||
574 | /* C-SKY cpus table. */ | |
575 | const struct csky_cpu_info csky_cpus[] = | |
576 | { | |
577 | /* CK510 series. */ | |
578 | #define CSKYV1_ISA_DSP CSKY_ISA_DSP | CSKY_ISA_MAC_DSP | |
579 | {"ck510", CSKY_ARCH_510, CSKYV1_ISA_E1}, | |
580 | {"ck510e", CSKY_ARCH_510 | CSKY_ARCH_DSP, CSKYV1_ISA_E1 | CSKYV1_ISA_DSP}, | |
581 | {"ck520", CSKY_ARCH_510 | CSKY_ARCH_MAC, CSKYV1_ISA_E1 | CSKY_ISA_MAC | CSKY_ISA_MAC_DSP}, | |
582 | ||
583 | #define CSKY_ISA_610 CSKYV1_ISA_E1 | CSKY_ISA_CP | |
584 | /* CK610 series. */ | |
585 | {"ck610", CSKY_ARCH_610, CSKY_ISA_610}, | |
586 | {"ck610e", CSKY_ARCH_610 | CSKY_ARCH_DSP, CSKY_ISA_610 | CSKYV1_ISA_DSP}, | |
587 | {"ck610f", CSKY_ARCH_610 | CSKY_ARCH_FLOAT, CSKY_ISA_610 | CSKY_ISA_FLOAT_E1}, | |
588 | {"ck610ef", CSKY_ARCH_610 | CSKY_ARCH_FLOAT | CSKY_ARCH_DSP, CSKY_ISA_610 | CSKY_ISA_FLOAT_E1 | CSKYV1_ISA_DSP}, | |
589 | {"ck610fe", CSKY_ARCH_610 | CSKY_ARCH_FLOAT | CSKY_ARCH_DSP, CSKY_ISA_610 | CSKY_ISA_FLOAT_E1 | CSKYV1_ISA_DSP}, | |
590 | {"ck620", CSKY_ARCH_610 | CSKY_ARCH_MAC, CSKY_ISA_610 | CSKY_ISA_MAC | CSKY_ISA_MAC_DSP}, | |
591 | ||
592 | /* CK801 series. */ | |
593 | #define CSKY_ISA_801 CSKYV2_ISA_E1 | |
594 | #define CSKYV2_ISA_DSP (CSKY_ISA_DSP | CSKY_ISA_DSP_1E2) | |
595 | {"ck801", CSKY_ARCH_801, CSKY_ISA_801}, | |
596 | {"ck801t", CSKY_ARCH_801, CSKY_ISA_801 | CSKY_ISA_TRUST}, | |
597 | ||
598 | /* CK802 series. */ | |
599 | #define CSKY_ISA_802 (CSKY_ISA_801 | CSKYV2_ISA_1E2 | CSKY_ISA_NVIC) | |
600 | {"ck802", CSKY_ARCH_802, CSKY_ISA_802}, | |
601 | {"ck802j", CSKY_ARCH_802 | CSKY_ARCH_JAVA, CSKY_ISA_802 | CSKY_ISA_JAVA}, | |
602 | {"ck802t", CSKY_ARCH_802, CSKY_ISA_802 | CSKY_ISA_TRUST}, | |
603 | ||
604 | /* CK803 series. */ | |
605 | #define CSKY_ISA_803 (CSKY_ISA_802 | CSKYV2_ISA_2E3 | CSKY_ISA_MP) | |
606 | #define CSKY_ISA_803R1 (CSKY_ISA_803 | CSKYV2_ISA_3E3R1) | |
607 | #define CSKY_ISA_FLOAT_803 (CSKY_ISA_FLOAT_E1 | CSKY_ISA_FLOAT_1E3) | |
608 | {"ck803", CSKY_ARCH_803, CSKY_ISA_803 }, | |
609 | {"ck803h", CSKY_ARCH_803, CSKY_ISA_803 }, | |
610 | {"ck803t", CSKY_ARCH_803, CSKY_ISA_803 | CSKY_ISA_TRUST}, | |
611 | {"ck803ht", CSKY_ARCH_803, CSKY_ISA_803 | CSKY_ISA_TRUST}, | |
612 | {"ck803f", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKY_ISA_FLOAT_803}, | |
613 | {"ck803fh", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKY_ISA_FLOAT_803}, | |
614 | {"ck803e", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP}, | |
615 | {"ck803eh", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP}, | |
616 | {"ck803et", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, | |
617 | {"ck803eht", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, | |
618 | {"ck803ef", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803}, | |
619 | {"ck803efh", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803}, | |
620 | {"ck803ft", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, | |
621 | {"ck803eft", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, | |
622 | {"ck803efht", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, | |
623 | {"ck803r1", CSKY_ARCH_803, CSKY_ISA_803R1 }, | |
624 | {"ck803hr1", CSKY_ARCH_803, CSKY_ISA_803R1 }, | |
625 | {"ck803tr1", CSKY_ARCH_803, CSKY_ISA_803R1 | CSKY_ISA_TRUST}, | |
626 | {"ck803htr1", CSKY_ARCH_803, CSKY_ISA_803R1 | CSKY_ISA_TRUST}, | |
627 | {"ck803fr1", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803}, | |
628 | {"ck803fhr1", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803}, | |
629 | {"ck803er1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE}, | |
630 | {"ck803ehr1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE}, | |
631 | {"ck803etr1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_TRUST}, | |
632 | {"ck803ehtr1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_TRUST}, | |
633 | {"ck803efr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803}, | |
634 | {"ck803efhr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803}, | |
635 | {"ck803ftr1", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, | |
636 | {"ck803eftr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, | |
637 | {"ck803ehftr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, | |
638 | ||
639 | {"ck803s", CSKY_ARCH_803, CSKY_ISA_803R1 }, | |
640 | {"ck803se", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKYV2_ISA_DSP}, | |
641 | {"ck803sj", CSKY_ARCH_803 | CSKY_ARCH_JAVA, CSKY_ISA_803R1 | CSKY_ISA_JAVA}, | |
642 | {"ck803sf", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803}, | |
643 | {"ck803sef", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803}, | |
644 | {"ck803st", CSKY_ARCH_803, CSKY_ISA_803R1 | CSKY_ISA_TRUST}, | |
645 | ||
646 | /* CK807 series. */ | |
647 | #define CSKY_ISA_807 (CSKY_ISA_803 | CSKYV2_ISA_3E7 | CSKY_ISA_DSP | CSKY_ISA_MP_1E2 | CSKY_ISA_CACHE) | |
648 | #define CSKY_ISA_FLOAT_807 (CSKY_ISA_FLOAT_803 | CSKY_ISA_FLOAT_3E4 | CSKY_ISA_FLOAT_1E2) | |
649 | {"ck807e", CSKY_ARCH_807_BASE, CSKY_ISA_807 | CSKYV2_ISA_DSP}, | |
650 | {"ck807ef", CSKY_ARCH_807_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_807 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_807}, | |
651 | {"ck807", CSKY_ARCH_807_BASE, CSKY_ISA_807 | CSKYV2_ISA_DSP}, | |
652 | {"ck807f", CSKY_ARCH_807_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_807 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_807}, | |
653 | ||
654 | /* CK810 series. */ | |
655 | #define CSKY_ISA_810 (CSKY_ISA_807 | CSKYV2_ISA_7E10) | |
656 | #define CSKY_ISA_FLOAT_810 (CSKY_ISA_FLOAT_E1 | CSKY_ISA_FLOAT_1E2) | |
657 | {"ck810e", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP}, | |
658 | {"ck810et", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, | |
659 | {"ck810ef", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_810}, | |
660 | {"ck810eft", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_810 | CSKY_ISA_TRUST}, | |
661 | {"ck810", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP}, | |
662 | {"ck810v", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_VDSP}, | |
663 | {"ck810f", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_810}, | |
664 | {"ck810t", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, | |
665 | {"ck810tv", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, | |
666 | {"ck810ft", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_VDSP | CSKY_ISA_FLOAT_810 | CSKY_ISA_TRUST}, | |
667 | {"ck810ftv", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_VDSP | CSKY_ISA_FLOAT_810 | CSKY_ISA_TRUST}, | |
668 | ||
669 | {NULL, 0, 0} | |
670 | }; | |
671 | ||
672 | int md_short_jump_size = 2; | |
673 | int md_long_jump_size = 4; | |
674 | ||
675 | /* This array holds the chars that always start a comment. If the | |
676 | pre-processor is disabled, these aren't very useful. */ | |
677 | const char comment_chars[] = "#"; | |
678 | ||
679 | /* This array holds the chars that only start a comment at the beginning of | |
680 | a line. If the line seems to have the form '# 123 filename' | |
681 | .line and .file directives will appear in the pre-processed output. */ | |
682 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
683 | first line of the input file. This is because the compiler outputs | |
684 | #NO_APP at the beginning of its output. */ | |
685 | /* Also note that comments like this one will always work. */ | |
686 | const char line_comment_chars[] = "#"; | |
687 | ||
688 | const char line_separator_chars[] = ";"; | |
689 | ||
690 | /* Chars that can be used to separate mant | |
691 | from exp in floating point numbers. */ | |
692 | const char EXP_CHARS[] = "eE"; | |
693 | ||
694 | /* Chars that mean this number is a floating point constant. | |
695 | As in 0f12.456 | |
696 | or 0d1.2345e12 */ | |
697 | ||
698 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; | |
699 | ||
700 | const char *md_shortopts = ""; | |
701 | ||
702 | struct option md_longopts[] = { | |
703 | #define OPTION_MARCH (OPTION_MD_BASE + 0) | |
704 | {"march", required_argument, NULL, OPTION_MARCH}, | |
705 | #define OPTION_MCPU (OPTION_MD_BASE + 1) | |
706 | {"mcpu", required_argument, NULL, OPTION_MCPU}, | |
707 | ||
708 | /* Remaining options just set boolean flags. */ | |
709 | {"EL", no_argument, &target_big_endian, 0}, | |
710 | {"mlittle-endian", no_argument, &target_big_endian, 0}, | |
711 | {"EB", no_argument, &target_big_endian, 1}, | |
712 | {"mbig-endian", no_argument, &target_big_endian, 1}, | |
713 | {"fpic", no_argument, &do_pic, 1}, | |
714 | {"pic", no_argument, &do_pic, 1}, | |
715 | {"mljump", no_argument, &do_long_jump, 1}, | |
716 | {"mno-ljump", no_argument, &do_long_jump, 0}, | |
717 | {"force2bsr", no_argument, &do_force2bsr, 1}, | |
718 | {"mforce2bsr", no_argument, &do_force2bsr, 1}, | |
719 | {"no-force2bsr", no_argument, &do_force2bsr, 0}, | |
720 | {"mno-force2bsr", no_argument, &do_force2bsr, 0}, | |
721 | {"jsri2bsr", no_argument, &do_jsri2bsr, 1}, | |
722 | {"mjsri2bsr", no_argument, &do_jsri2bsr, 1}, | |
723 | {"no-jsri2bsr", no_argument, &do_jsri2bsr, 0}, | |
724 | {"mno-jsri2bsr", no_argument, &do_jsri2bsr, 0}, | |
725 | {"mnolrw", no_argument, &do_nolrw, 1}, | |
726 | {"mno-lrw", no_argument, &do_nolrw, 1}, | |
727 | {"melrw", no_argument, &do_extend_lrw, 1}, | |
728 | {"mno-elrw", no_argument, &do_extend_lrw, 0}, | |
729 | {"mlaf", no_argument, &do_func_dump, 1}, | |
730 | {"mliterals-after-func", no_argument, &do_func_dump, 1}, | |
731 | {"mno-laf", no_argument, &do_func_dump, 0}, | |
732 | {"mno-literals-after-func", no_argument, &do_func_dump, 0}, | |
733 | {"mlabr", no_argument, &do_br_dump, 1}, | |
734 | {"mliterals-after-br", no_argument, &do_br_dump, 1}, | |
735 | {"mno-labr", no_argument, &do_br_dump, 0}, | |
736 | {"mnoliterals-after-br", no_argument, &do_br_dump, 0}, | |
737 | {"mistack", no_argument, &do_intr_stack, 1}, | |
738 | {"mno-istack", no_argument, &do_intr_stack, 0}, | |
739 | #ifdef INCLUDE_BRANCH_STUB | |
740 | {"mbranch-stub", no_argument, &do_use_branchstub, 1}, | |
741 | {"mno-branch-stub", no_argument, &do_use_branchstub, 0}, | |
742 | #endif | |
743 | {"mhard-float", no_argument, &do_opt_mhard_float, CSKY_ARCH_FLOAT}, | |
744 | {"mmp", no_argument, &do_opt_mmp, CSKY_ARCH_MP}, | |
745 | {"mcp", no_argument, &do_opt_mcp, CSKY_ARCH_CP}, | |
746 | {"mcache", no_argument, &do_opt_mcache, CSKY_ARCH_CACHE}, | |
747 | {"msecurity", no_argument, &do_opt_msecurity, CSKY_ARCH_MAC}, | |
748 | {"mtrust", no_argument, &do_opt_mtrust, CSKY_ISA_TRUST}, | |
749 | {"mdsp", no_argument, &do_opt_mdsp, CSKY_DSP_FLAG_V1}, | |
750 | {"medsp", no_argument, &do_opt_medsp, CSKY_DSP_FLAG_V2}, | |
751 | {"mvdsp", no_argument, &do_opt_mvdsp, CSKY_ISA_VDSP}, | |
752 | }; | |
753 | ||
754 | size_t md_longopts_size = sizeof (md_longopts); | |
755 | ||
756 | static struct csky_insn_info csky_insn; | |
757 | ||
758 | static struct hash_control *csky_opcodes_hash; | |
759 | static struct hash_control *csky_macros_hash; | |
760 | ||
761 | static struct csky_macro_info v1_macros_table[] = | |
762 | { | |
763 | {"idly", 1, CSKYV1_ISA_E1, csky_idly}, | |
764 | {"rolc", 2, CSKYV1_ISA_E1, csky_rolc}, | |
765 | {"rotlc", 2, CSKYV1_ISA_E1, csky_rolc}, | |
766 | {"sxtrb0", 2, CSKYV1_ISA_E1, csky_sxtrb}, | |
767 | {"sxtrb1", 2, CSKYV1_ISA_E1, csky_sxtrb}, | |
768 | {"sxtrb2", 2, CSKYV1_ISA_E1, csky_sxtrb}, | |
769 | {"movtf", 3, CSKYV1_ISA_E1, csky_movtf}, | |
770 | {"addc64", 3, CSKYV1_ISA_E1, csky_addc64}, | |
771 | {"subc64", 3, CSKYV1_ISA_E1, csky_subc64}, | |
772 | {"or64", 3, CSKYV1_ISA_E1, csky_or64}, | |
773 | {"xor64", 3, CSKYV1_ISA_E1, csky_xor64}, | |
774 | {NULL,0,0,0} | |
775 | }; | |
776 | ||
777 | static struct csky_macro_info v2_macros_table[] = | |
778 | { | |
779 | {"neg", 1, CSKYV2_ISA_E1, csky_neg}, | |
780 | {"rsubi", 2, CSKYV2_ISA_1E2, csky_rsubi}, | |
781 | {"incf", 1, CSKYV2_ISA_1E2, csky_arith}, | |
782 | {"inct", 1, CSKYV2_ISA_1E2, csky_arith}, | |
783 | {"decf", 1, CSKYV2_ISA_2E3, csky_arith}, | |
784 | {"decgt", 1, CSKYV2_ISA_2E3, csky_arith}, | |
785 | {"declt", 1, CSKYV2_ISA_2E3, csky_arith}, | |
786 | {"decne", 1, CSKYV2_ISA_1E2, csky_decne}, | |
787 | {"dect", 1, CSKYV2_ISA_1E2, csky_arith}, | |
788 | {"lslc", 1, CSKYV2_ISA_1E2, csky_arith}, | |
789 | {"lsrc", 1, CSKYV2_ISA_1E2, csky_arith}, | |
790 | {"xsr", 1, CSKYV2_ISA_1E2, csky_arith}, | |
791 | {NULL,0,0,0} | |
792 | }; | |
793 | ||
794 | /* For option -mnolrw, replace lrw by movih & ori. */ | |
795 | static struct csky_macro_info v2_lrw_macro_opcode = | |
796 | {"lrw", 2, CSKYV2_ISA_1E2, csky_lrw}; | |
797 | ||
798 | /* This function is used to show errors or warnings. */ | |
799 | ||
800 | static void | |
801 | csky_show_error (enum error_number err, int idx, void *arg1, void *arg2) | |
802 | { | |
803 | if (err == ERROR_NONE) | |
804 | return; | |
805 | ||
806 | switch (err) | |
807 | { | |
808 | case ERROR_REG_LIST: | |
809 | case ERROR_OPCODE_PSRBIT: | |
810 | case ERROR_OPCODE_ILLEGAL: | |
811 | case ERROR_JMPIX_OVER_RANGE: | |
812 | case ERROR_MISSING_COMMA: | |
813 | case ERROR_MISSING_LBRACKET: | |
814 | case ERROR_MISSING_RBRACKET: | |
815 | case ERROR_MISSING_LSQUARE_BRACKETS: | |
816 | case ERROR_MISSING_RSQUARE_BRACKETS: | |
817 | case ERROR_MISSING_LANGLE_BRACKETS: | |
818 | case ERROR_MISSING_RANGLE_BRACKETS: | |
819 | /* Add NULL to fix warnings. */ | |
820 | as_bad (_(err_formats[err].fmt), NULL); | |
821 | break; | |
822 | case ERROR_CREG_ILLEGAL: | |
823 | case ERROR_GREG_ILLEGAL: | |
824 | case ERROR_IMM_ILLEGAL: | |
825 | case ERROR_IMM_OVERFLOW: | |
826 | case ERROR_EXP_CREG: | |
827 | case ERROR_EXP_GREG: | |
828 | case ERROR_EXP_CONSTANT: | |
829 | case ERROR_EXP_EVEN_FREG: | |
830 | case ERROR_MISSING_OPERAND: | |
831 | case ERROR_CPREG_ILLEGAL: | |
832 | as_bad (_(err_formats[err].fmt), idx); | |
833 | break; | |
834 | case ERROR_OPERANDS_NUMBER: | |
835 | case ERROR_IMM_POWER: | |
836 | as_bad (_(err_formats[err].fmt), (long)arg1); | |
837 | break; | |
838 | ||
839 | case ERROR_OFFSET_UNALIGNED: | |
840 | as_bad (_(err_formats[err].fmt), idx, (long)arg1); | |
841 | break; | |
842 | case ERROR_RELOC_ILLEGAL: | |
843 | case ERROR_BAD_END: | |
844 | case ERROR_OPERANDS_ILLEGAL: | |
845 | as_bad (_(err_formats[err].fmt), (char *)arg1); | |
846 | break; | |
847 | case ERROR_REG_OVER_RANGE: | |
848 | as_bad (_(err_formats[err].fmt), idx, (long) arg1); | |
849 | break; | |
850 | case ERROR_802J_REG_OVER_RANGE: | |
851 | case ERROR_REG_FORMAT: | |
852 | as_bad (_(err_formats[err].fmt), idx, (char *)arg1); | |
853 | break; | |
854 | case ERROR_UNDEFINE: | |
855 | /* Add NULL to fix warnings. */ | |
856 | as_bad ((char *)arg1, NULL); | |
857 | break; | |
858 | case WARNING_IDLY: | |
859 | as_warn (_(err_formats[err].fmt), (long)arg1); | |
860 | break; | |
861 | case WARNING_OPTIONS: | |
862 | as_warn (_(err_formats[err].fmt), (char *)arg1, (char *)arg2); | |
863 | break; | |
864 | default: | |
865 | break; | |
866 | } | |
867 | } | |
868 | ||
869 | /* Handle errors in branch relaxation. */ | |
870 | ||
871 | static void | |
872 | csky_branch_report_error (const char* file, unsigned int line, | |
873 | symbolS* sym, offsetT val) | |
874 | { | |
875 | as_bad_where (file ? file : _("unknown"), | |
876 | line, | |
877 | _("pcrel offset for branch to %s too far (0x%lx)"), | |
878 | sym ? S_GET_NAME (sym) : _("<unknown>"), | |
879 | (long) val); | |
880 | } | |
881 | ||
882 | /* Set appropriate flags for the cpu matching STR. */ | |
883 | ||
884 | static void | |
885 | parse_cpu (const char *str) | |
886 | { | |
887 | int i = 0; | |
888 | ||
889 | for (; csky_cpus[i].name != NULL; i++) | |
890 | if (strcasecmp (str, csky_cpus[i].name) == 0) | |
891 | { | |
892 | mach_flag |= csky_cpus[i].mach_flag; | |
893 | isa_flag = csky_cpus[i].isa_flag; | |
894 | other_flag |= (csky_cpus[i].mach_flag & ~CSKY_ARCH_MASK); | |
895 | return; | |
896 | } | |
897 | as_bad (_("unknown cpu `%s'"), str); | |
898 | } | |
899 | ||
900 | /* Set appropriate flags for the arch matching STR. */ | |
901 | ||
902 | static void | |
903 | parse_arch (const char *str) | |
904 | { | |
905 | int i = 0; | |
906 | for (; csky_archs[i].name != NULL; i++) | |
907 | if (strcasecmp (str, csky_archs[i].name) == 0) | |
908 | { | |
909 | arch_flag |= csky_archs[i].arch_flag; | |
910 | return; | |
911 | } | |
912 | as_bad (_("unknown architecture `%s'"), str); | |
913 | } | |
914 | ||
915 | ||
916 | #ifdef OBJ_ELF | |
917 | /* Implement the TARGET_FORMAT macro. */ | |
918 | ||
919 | const char * | |
920 | elf32_csky_target_format (void) | |
921 | { | |
922 | return (target_big_endian | |
923 | ? "elf32-csky-big" | |
924 | : "elf32-csky-little"); | |
925 | } | |
926 | #endif | |
927 | ||
928 | /* Turn an integer of n bytes (in val) into a stream of bytes appropriate | |
929 | for use in the a.out file, and stores them in the array pointed to by buf. | |
930 | This knows about the endian-ness of the target machine and does | |
931 | THE RIGHT THING, whatever it is. Possible values for n are 1 (byte) | |
932 | 2 (short) and 4 (long) Floating numbers are put out as a series of | |
933 | LITTLENUMS (shorts, here at least). */ | |
934 | ||
935 | void | |
936 | md_number_to_chars (char * buf, valueT val, int n) | |
937 | { | |
938 | if (target_big_endian) | |
939 | number_to_chars_bigendian (buf, val, n); | |
940 | else | |
941 | number_to_chars_littleendian (buf, val, n); | |
942 | } | |
943 | ||
944 | /* Get a log2(val). */ | |
945 | ||
946 | static int | |
947 | csky_log_2 (unsigned int val) | |
948 | { | |
949 | int log = -1; | |
950 | if ((val & (val - 1)) == 0) | |
951 | for (; val; val >>= 1) | |
952 | log ++; | |
953 | else | |
954 | csky_show_error (ERROR_IMM_POWER, 0, (void *)(long)val, NULL); | |
955 | return log; | |
956 | } | |
957 | ||
958 | /* Output one instruction to the buffer at PTR. */ | |
959 | ||
960 | static void | |
961 | csky_write_insn (char *ptr, valueT use, int nbytes) | |
962 | { | |
963 | if (nbytes == 2) | |
964 | md_number_to_chars (ptr, use, nbytes); | |
965 | else /* 32-bit instruction. */ | |
966 | { | |
967 | /* Significant figures are in low bits. */ | |
968 | md_number_to_chars (ptr, use >> 16, 2); | |
969 | md_number_to_chars (ptr + 2, use & 0xFFFF, 2); | |
970 | } | |
971 | } | |
972 | ||
973 | /* Read an NBYTES instruction from the buffer at PTR. NBYTES should | |
974 | be either 2 or 4. This function is used in branch relaxation. */ | |
975 | ||
976 | static valueT | |
977 | csky_read_insn (char *ptr, int nbytes) | |
978 | { | |
979 | unsigned char *uptr = (unsigned char *)ptr; | |
980 | valueT v = 0; | |
981 | int lo, hi; /* hi/lo byte index in binary stream. */ | |
982 | ||
983 | if (target_big_endian) | |
984 | { | |
985 | hi = 0; | |
986 | lo = 1; | |
987 | } | |
988 | else | |
989 | { | |
990 | hi = 1; | |
991 | lo = 0; | |
992 | } | |
993 | v = uptr[lo] | (uptr[hi] << 8); | |
994 | if (nbytes == 4) | |
995 | { | |
996 | v <<= 16; | |
997 | v |= uptr[lo + 2] | (uptr[hi + 2] << 8); | |
998 | } | |
999 | return v; | |
1000 | } | |
1001 | ||
1002 | /* Construct a label name into S from the 3-character prefix P and | |
1003 | number N formatted as a 4-digit hex number. */ | |
1004 | ||
1005 | static void | |
1006 | make_internal_label (char *s, const char *p, int n) | |
1007 | { | |
1008 | static const char hex[] = "0123456789ABCDEF"; | |
1009 | ||
1010 | s[0] = p[0]; | |
1011 | s[1] = p[1]; | |
1012 | s[2] = p[2]; | |
1013 | s[3] = hex[(n >> 12) & 0xF]; | |
1014 | s[4] = hex[(n >> 8) & 0xF]; | |
1015 | s[5] = hex[(n >> 4) & 0xF]; | |
1016 | s[6] = hex[(n) & 0xF]; | |
1017 | s[7] = 0; | |
1018 | } | |
1019 | ||
1020 | /* md_operand is a no-op on C-SKY; we do everything elsewhere. */ | |
1021 | ||
1022 | void | |
1023 | md_operand (expressionS *expressionP ATTRIBUTE_UNUSED) | |
1024 | { | |
1025 | return; | |
1026 | } | |
1027 | ||
1028 | /* Under ELF we need to default _GLOBAL_OFFSET_TABLE. | |
1029 | Otherwise we have no need to default values of symbols. */ | |
1030 | ||
1031 | symbolS * | |
1032 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) | |
1033 | { | |
1034 | #ifdef OBJ_ELF | |
1035 | /* TODO: */ | |
1036 | #endif | |
1037 | return NULL; | |
1038 | } | |
1039 | ||
1040 | /* Use IEEE format for floating-point constants. */ | |
1041 | ||
1042 | const char * | |
1043 | md_atof (int type, char *litP, int *sizeP) | |
1044 | { | |
1045 | return ieee_md_atof (type, litP, sizeP, target_big_endian); | |
1046 | } | |
1047 | ||
1048 | /* Print option help to FP. */ | |
1049 | ||
1050 | void | |
1051 | md_show_usage (FILE *fp) | |
1052 | { | |
1053 | int i, n; | |
1054 | const int margin = 48; | |
1055 | ||
1056 | fprintf (fp, _("C-SKY assembler options:\n")); | |
1057 | ||
1058 | fprintf (fp, _("\ | |
1059 | -march=ARCH select architecture ARCH:")); | |
1060 | for (i = 0, n = margin; csky_archs[i].name != NULL; i++) | |
1061 | { | |
1062 | int l = strlen (csky_archs[i].name); | |
1063 | if (n + l >= margin) | |
1064 | { | |
1065 | fprintf (fp, "\n\t\t\t\t"); | |
1066 | n = l; | |
1067 | } | |
1068 | else | |
1069 | { | |
1070 | fprintf (fp, " "); | |
1071 | n += l + 1; | |
1072 | } | |
1073 | fprintf (fp, "%s", csky_archs[i].name); | |
1074 | } | |
1075 | fprintf (fp, "\n"); | |
1076 | ||
1077 | fprintf (fp, _("\ | |
1078 | -mcpu=CPU select processor CPU:")); | |
1079 | for (i = 0, n = margin; csky_cpus[i].name != NULL; i++) | |
1080 | { | |
1081 | int l = strlen (csky_cpus[i].name); | |
1082 | if (n + l >= margin) | |
1083 | { | |
1084 | fprintf (fp, "\n\t\t\t\t"); | |
1085 | n = l; | |
1086 | } | |
1087 | else | |
1088 | { | |
1089 | fprintf (fp, " "); | |
1090 | n += l + 1; | |
1091 | } | |
1092 | fprintf (fp, "%s", csky_cpus[i].name); | |
1093 | } | |
1094 | fprintf (fp, "\n"); | |
1095 | ||
1096 | fprintf (fp, _("\ | |
1097 | -EL -mlittle-endian generate little-endian output\n")); | |
1098 | fprintf (fp, _("\ | |
1099 | -EB -mbig-endian generate big-endian output\n")); | |
1100 | fprintf (fp, _("\ | |
1101 | -fpic -pic generate position-independent code\n")); | |
1102 | ||
1103 | fprintf (fp, _("\ | |
1104 | -mljump transform jbf, jbt, jbr to jmpi (CK800 only)\n")); | |
1105 | fprintf (fp, _("\ | |
1106 | -mno-ljump\n")); | |
1107 | ||
1108 | #ifdef INCLUDE_BRANCH_STUB | |
1109 | fprintf (fp, _("\ | |
1110 | -mbranch-stub enable branch stubs for PC-relative calls\n")); | |
1111 | fprintf (fp, _("\ | |
1112 | -mno-branch-stub\n")); | |
1113 | #endif | |
1114 | ||
1115 | fprintf (fp, _("\ | |
1116 | -force2bsr -mforce2bsr transform jbsr to bsr\n")); | |
1117 | fprintf (fp, _("\ | |
1118 | -no-force2bsr -mno-force2bsr\n")); | |
1119 | fprintf (fp, _("\ | |
1120 | -jsri2bsr -mjsri2bsr transform jsri to bsr\n")); | |
1121 | fprintf (fp, _("\ | |
1122 | -no-jsri2bsr -mno-jsri2bsr\n")); | |
1123 | ||
1124 | fprintf (fp, _("\ | |
1125 | -mnolrw -mno-lrw implement lrw as movih + ori\n")); | |
1126 | fprintf (fp, _("\ | |
1127 | -melrw enable extended lrw (CK800 only)\n")); | |
1128 | fprintf (fp, _("\ | |
1129 | -mno-elrw\n")); | |
1130 | ||
1131 | fprintf (fp, _("\ | |
1132 | -mlaf -mliterals-after-func emit literals after each function\n")); | |
1133 | fprintf (fp, _("\ | |
1134 | -mno-laf -mno-literals-after-func\n")); | |
1135 | fprintf (fp, _("\ | |
1136 | -mlabr -mliterals-after-br emit literals after branch instructions\n")); | |
1137 | fprintf (fp, _("\ | |
1138 | -mno-labr -mnoliterals-after-br\n")); | |
1139 | ||
1140 | fprintf (fp, _("\ | |
1141 | -mistack enable interrupt stack instructions\n")); | |
1142 | fprintf (fp, _("\ | |
1143 | -mno-istack\n")); | |
1144 | ||
1145 | fprintf (fp, _("\ | |
1146 | -mhard-float enable hard float instructions\n")); | |
1147 | fprintf (fp, _("\ | |
1148 | -mmp enable multiprocessor instructions\n")); | |
1149 | fprintf (fp, _("\ | |
1150 | -mcp enable coprocessor instructions\n")); | |
1151 | fprintf (fp, _("\ | |
1152 | -mcache enable cache prefetch instruction\n")); | |
1153 | fprintf (fp, _("\ | |
1154 | -msecurity enable security instructions\n")); | |
1155 | fprintf (fp, _("\ | |
1156 | -mtrust enable trust instructions\n")); | |
1157 | fprintf (fp, _("\ | |
1158 | -mdsp enable DSP instructions\n")); | |
1159 | fprintf (fp, _("\ | |
1160 | -medsp enable enhanced DSP instructions\n")); | |
1161 | fprintf (fp, _("\ | |
1162 | -mvdsp enable vector DSP instructions\n")); | |
1163 | } | |
1164 | ||
1165 | /* Target-specific initialization and option handling. */ | |
1166 | ||
1167 | void | |
1168 | md_begin (void) | |
1169 | { | |
1170 | unsigned int bfd_mach_flag = 0; | |
1171 | struct csky_opcode const *opcode; | |
1172 | struct csky_macro_info const *macro; | |
1173 | struct csky_arch_info const *p_arch; | |
1174 | struct csky_cpu_info const *p_cpu; | |
1175 | unsigned int flags = (other_flag | do_opt_mmp | do_opt_mcp | do_opt_mcache | |
1176 | | do_opt_msecurity | do_opt_mhard_float); | |
1177 | dsp_flag |= do_opt_mdsp | do_opt_medsp; | |
1178 | isa_flag |= do_opt_mtrust | do_opt_mvdsp; | |
1179 | ||
1180 | if (dsp_flag) | |
1181 | flags |= CSKY_ARCH_DSP; | |
1182 | ||
1183 | if (mach_flag != 0) | |
1184 | { | |
1185 | if ((mach_flag & CSKY_ARCH_MASK) != arch_flag && arch_flag != 0) | |
1186 | as_warn (_("-mcpu conflict with -march option, using -mcpu")); | |
1187 | if ((mach_flag & ~CSKY_ARCH_MASK) != flags && flags != 0) | |
1188 | as_warn (_("-mcpu conflict with other model parameters, using -mcpu")); | |
1189 | } | |
1190 | else if (arch_flag != 0) | |
1191 | mach_flag |= arch_flag | flags; | |
1192 | else | |
1193 | { | |
1194 | #ifdef TARGET_WITH_CPU | |
1195 | int i = 0; | |
1196 | for (; csky_cpus[i].name != NULL; i++) | |
1197 | { | |
1198 | if (strcmp (TARGET_WITH_CPU, csky_cpus[i].name) == 0) | |
1199 | { | |
1200 | mach_flag |= csky_cpus[i].mach_flag; | |
1201 | isa_flag = csky_cpus[i].isa_flag; | |
1202 | break; | |
1203 | } | |
1204 | } | |
1205 | #else | |
1206 | #if _CSKY_ABI==1 | |
1207 | mach_flag |= CSKY_ARCH_610 | flags; | |
1208 | #else | |
1209 | mach_flag |= CSKY_ARCH_810_BASE | flags; | |
1210 | #endif | |
1211 | #endif | |
1212 | } | |
1213 | ||
1214 | if (IS_CSKY_ARCH_610 (mach_flag) || IS_CSKY_ARCH_510 (mach_flag)) | |
1215 | { | |
1216 | if ((mach_flag & CSKY_ARCH_MP) && (mach_flag & CSKY_ARCH_MAC)) | |
1217 | as_fatal ("520/620 conflicts with -mmp option"); | |
1218 | else if ((mach_flag & CSKY_ARCH_MP) && (mach_flag & CSKY_ARCH_DSP)) | |
1219 | as_fatal ("510e/610e conflicts with -mmp option"); | |
1220 | else if ((mach_flag & CSKY_ARCH_DSP) && (mach_flag & CSKY_ARCH_MAC)) | |
1221 | as_fatal ("520/620 conflicts with 510e/610e or -mdsp option"); | |
1222 | } | |
1223 | if (IS_CSKY_ARCH_510 (mach_flag) && (mach_flag & CSKY_ARCH_FLOAT)) | |
1224 | { | |
1225 | mach_flag = (mach_flag & (~CSKY_ARCH_MASK)); | |
1226 | mach_flag |= CSKY_ARCH_610; | |
1227 | } | |
1228 | ||
1229 | /* Find bfd_mach_flag, it will set to bfd backend data. */ | |
1230 | for (p_arch = csky_archs; p_arch->arch_flag != 0; p_arch++) | |
1231 | if ((mach_flag & CSKY_ARCH_MASK) == (p_arch->arch_flag & CSKY_ARCH_MASK)) | |
1232 | { | |
1233 | bfd_mach_flag = p_arch->bfd_mach_flag; | |
1234 | break; | |
1235 | } | |
1236 | ||
1237 | /* Find isa_flag. */ | |
1238 | for (p_cpu = csky_cpus; p_cpu->mach_flag != 0; p_cpu++) | |
1239 | if ((mach_flag & CPU_ARCH_MASK) == p_cpu->mach_flag) | |
1240 | { | |
1241 | isa_flag |= p_cpu->isa_flag; | |
1242 | break; | |
1243 | } | |
1244 | ||
1245 | /* Check if -mdsp and -medsp conflict. If cpu is ck803, we will | |
1246 | use enhanced dsp instruction. Otherwise, we will use normal dsp. */ | |
1247 | if (dsp_flag) | |
1248 | { | |
1249 | if (IS_CSKY_ARCH_803 (mach_flag)) | |
1250 | { | |
1251 | /* In 803, dspv1 is conflict with dspv2. We keep dspv2. */ | |
1252 | if ((dsp_flag & CSKY_DSP_FLAG_V1) && (dsp_flag & CSKY_DSP_FLAG_V2)) | |
1253 | as_warn (_("option -mdsp conflicts with -medsp, only enabling -medsp")); | |
1254 | isa_flag &= ~(CSKY_ISA_MAC_DSP | CSKY_ISA_DSP); | |
1255 | isa_flag |= CSKY_ISA_DSP_ENHANCE; | |
1256 | } | |
1257 | else | |
1258 | { | |
1259 | isa_flag &= ~CSKY_ISA_DSP_ENHANCE; | |
1260 | as_warn (_("-medsp option is only supported by ck803s, ignoring -medsp")); | |
1261 | } | |
1262 | ; | |
1263 | } | |
1264 | ||
1265 | if (do_use_branchstub == -1) | |
1266 | do_use_branchstub = !IS_CSKY_ARCH_V1 (mach_flag); | |
1267 | else if (do_use_branchstub == 1) | |
1268 | { | |
1269 | if (IS_CSKY_ARCH_V1 (mach_flag)) | |
1270 | { | |
1271 | as_warn (_("C-SKY ABI v1 (ck510/ck610) does not support -mbranch-stub")); | |
1272 | do_use_branchstub = 0; | |
1273 | } | |
1274 | else if (do_force2bsr == 0) | |
1275 | { | |
1276 | as_warn (_("-mno-force2bsr is ignored with -mbranch-stub")); | |
1277 | do_force2bsr = 1; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | if (IS_CSKY_ARCH_801 (mach_flag) || IS_CSKY_ARCH_802 (mach_flag)) | |
1282 | { | |
1283 | if (!do_force2bsr) | |
1284 | as_warn (_("-mno-force2bsr is ignored for ck801/ck802")); | |
1285 | do_force2bsr = 1; | |
1286 | } | |
1287 | else if (do_force2bsr == -1) | |
1288 | do_force2bsr = do_use_branchstub; | |
1289 | ||
1290 | if (do_pff == -1) | |
1291 | { | |
1292 | if (IS_CSKY_ARCH_V1 (mach_flag)) | |
1293 | do_pff = 1; | |
1294 | else | |
1295 | do_pff = 0; | |
1296 | } | |
1297 | ||
1298 | if (do_extend_lrw == -1) | |
1299 | { | |
1300 | if (IS_CSKY_ARCH_801 (mach_flag)) | |
1301 | do_extend_lrw = 1; | |
1302 | else | |
1303 | do_extend_lrw = 0; | |
1304 | } | |
1305 | if (IS_CSKY_ARCH_801 (mach_flag) || IS_CSKY_ARCH_802 (mach_flag)) | |
1306 | { | |
1307 | if (do_long_jump > 0) | |
1308 | as_warn (_("-mljump is ignored for ck801/ck802")); | |
1309 | do_long_jump = 0; | |
1310 | } | |
1311 | else if (do_long_jump == -1) | |
1312 | do_long_jump = 1; | |
1313 | if (do_intr_stack == -1) | |
1314 | { | |
1315 | /* control interrupt stack module, 801&802&803 default on | |
1316 | 807&810, default off. */ | |
1317 | if (IS_CSKY_ARCH_807 (mach_flag) || IS_CSKY_ARCH_810 (mach_flag)) | |
1318 | do_intr_stack = 0; | |
1319 | else | |
1320 | do_intr_stack = 1; | |
1321 | } | |
1322 | /* TODO: add isa_flag(SIMP/CACHE/APS). */ | |
1323 | isa_flag |= (mach_flag & CSKY_ARCH_MAC) ? CSKY_ISA_MAC : 0; | |
1324 | isa_flag |= (mach_flag & CSKY_ARCH_MP) ? CSKY_ISA_MP : 0; | |
1325 | isa_flag |= (mach_flag & CSKY_ARCH_CP) ? CSKY_ISA_CP : 0; | |
1326 | ||
1327 | /* Set abi flag and get table address. */ | |
1328 | if (IS_CSKY_ARCH_V1 (mach_flag)) | |
1329 | { | |
1330 | mach_flag = mach_flag | CSKY_ABI_V1; | |
1331 | opcode = csky_v1_opcodes; | |
1332 | macro = v1_macros_table; | |
1333 | SPANPANIC = v1_SPANPANIC; | |
1334 | SPANCLOSE = v1_SPANCLOSE; | |
1335 | SPANEXIT = v1_SPANEXIT; | |
1336 | md_relax_table = csky_relax_table; | |
1337 | } | |
1338 | else | |
1339 | { | |
1340 | mach_flag = mach_flag | CSKY_ABI_V2; | |
1341 | opcode = csky_v2_opcodes; | |
1342 | macro = v2_macros_table; | |
1343 | SPANPANIC = v2_SPANPANIC; | |
1344 | if (do_extend_lrw) | |
1345 | { | |
1346 | SPANCLOSE = v2_SPANCLOSE_ELRW; | |
1347 | SPANEXIT = v2_SPANEXIT_ELRW; | |
1348 | } | |
1349 | else | |
1350 | { | |
1351 | SPANCLOSE = v2_SPANCLOSE; | |
1352 | SPANEXIT = v2_SPANEXIT; | |
1353 | } | |
1354 | md_relax_table = csky_relax_table; | |
1355 | } | |
1356 | ||
1357 | /* Establish hash table for opcodes and macros. */ | |
1358 | csky_macros_hash = hash_new (); | |
1359 | csky_opcodes_hash = hash_new (); | |
1360 | for ( ; opcode->mnemonic != NULL; opcode++) | |
1361 | if ((isa_flag & (opcode->isa_flag16 | opcode->isa_flag32)) != 0) | |
1362 | hash_insert (csky_opcodes_hash, opcode->mnemonic, (char *)opcode); | |
1363 | for ( ; macro->name != NULL; macro++) | |
1364 | if ((isa_flag & macro->isa_flag) != 0) | |
1365 | hash_insert (csky_macros_hash, macro->name, (char *)macro); | |
1366 | if (do_nolrw && (isa_flag & CSKYV2_ISA_1E2) != 0) | |
1367 | hash_insert (csky_macros_hash, | |
1368 | v2_lrw_macro_opcode.name, | |
1369 | (char *)&v2_lrw_macro_opcode); | |
1370 | /* Set e_flag to ELF Head. */ | |
1371 | bfd_set_private_flags (stdoutput, mach_flag); | |
1372 | /* Set bfd_mach to bfd backend data. */ | |
1373 | bfd_set_arch_mach (stdoutput, bfd_arch_csky, bfd_mach_flag); | |
1374 | } | |
1375 | ||
1376 | /* The C-SKY assembler emits mapping symbols $t and $d to mark the | |
1377 | beginning of a sequence of instructions and data (such as a constant pool), | |
1378 | respectively. This is similar to what ARM does. */ | |
1379 | ||
1380 | static void | |
1381 | make_mapping_symbol (map_state state, valueT value, fragS *frag) | |
1382 | { | |
1383 | symbolS * symbolP; | |
1384 | const char * symname; | |
1385 | int type; | |
1386 | switch (state) | |
1387 | { | |
1388 | case MAP_DATA: | |
1389 | symname = "$d"; | |
1390 | type = BSF_NO_FLAGS; | |
1391 | break; | |
1392 | case MAP_TEXT: | |
1393 | symname = "$t"; | |
1394 | type = BSF_NO_FLAGS; | |
1395 | break; | |
1396 | default: | |
1397 | abort (); | |
1398 | } | |
1399 | ||
1400 | symbolP = symbol_new (symname, now_seg, value, frag); | |
1401 | symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL; | |
1402 | } | |
1403 | ||
1404 | /* We need to keep track of whether we are emitting code or data; this | |
1405 | function switches state and emits a mapping symbol if necessary. */ | |
1406 | ||
1407 | static void | |
1408 | mapping_state (map_state state) | |
1409 | { | |
1410 | map_state current_state | |
1411 | = seg_info (now_seg)->tc_segment_info_data.current_state; | |
1412 | ||
1413 | if (current_state == state) | |
1414 | return; | |
1415 | else if (current_state == MAP_UNDEFINED && state == MAP_DATA) | |
1416 | return; | |
1417 | else if (current_state == MAP_UNDEFINED && state == MAP_TEXT) | |
1418 | { | |
1419 | struct frag * const frag_first = seg_info (now_seg)->frchainP->frch_root; | |
1420 | if (frag_now != frag_first || frag_now_fix () > 0) | |
1421 | make_mapping_symbol (MAP_DATA, (valueT) 0, frag_first); | |
1422 | } | |
1423 | ||
1424 | seg_info (now_seg)->tc_segment_info_data.current_state = state; | |
1425 | make_mapping_symbol (state, (valueT) frag_now_fix (), frag_now); | |
1426 | } | |
1427 | ||
1428 | /* Dump the literal pool. */ | |
1429 | ||
1430 | static void | |
1431 | dump_literals (int isforce) | |
1432 | { | |
1433 | #define CSKYV1_BR_INSN 0xF000 | |
1434 | #define CSKYV2_BR_INSN 0x0400 | |
1435 | unsigned int i; | |
1436 | struct literal * p; | |
1437 | symbolS * brarsym = NULL; | |
1438 | ||
1439 | /* V1 nop encoding: 0x1200 : mov r0, r0. */ | |
1440 | static char v1_nop_insn_big[2] = {0x12, 0x00}; | |
1441 | static char v1_nop_insn_little[2] = {0x00, 0x12}; | |
1442 | ||
1443 | if (poolsize == 0) | |
1444 | return; | |
1445 | ||
1446 | /* Must we branch around the literal table? */ | |
1447 | if (isforce) | |
1448 | { | |
1449 | char brarname[8]; | |
1450 | make_internal_label (brarname, POOL_END_LABEL, poolnumber); | |
1451 | brarsym = symbol_make (brarname); | |
1452 | symbol_table_insert (brarsym); | |
1453 | mapping_state (MAP_TEXT); | |
1454 | if (IS_CSKY_ARCH_V1 (mach_flag)) | |
1455 | { | |
1456 | csky_insn.output | |
1457 | = frag_var (rs_machine_dependent, | |
1458 | csky_relax_table[C (UNCD_JUMP_S, DISP32)].rlx_length, | |
1459 | csky_relax_table[C (UNCD_JUMP_S, DISP12)].rlx_length, | |
1460 | C (UNCD_JUMP_S, 0), brarsym, 0, 0); | |
1461 | md_number_to_chars (csky_insn.output, CSKYV1_BR_INSN, 2); | |
1462 | } | |
1463 | else | |
1464 | { | |
1465 | csky_insn.output | |
1466 | = frag_var (rs_machine_dependent, | |
1467 | UNCD_DISP16_LEN, | |
1468 | UNCD_DISP10_LEN, | |
1469 | UNCD_DISP10, | |
1470 | brarsym, 0, 0); | |
1471 | md_number_to_chars (csky_insn.output, CSKYV2_BR_INSN, 2); | |
1472 | } | |
1473 | } | |
1474 | /* Make sure that the section is sufficiently aligned and that | |
1475 | the literal table is aligned within it. */ | |
1476 | if (do_pff) | |
1477 | { | |
1478 | valueT br_self; | |
1479 | csky_insn.output = frag_more (2); | |
1480 | /* .Lxx: br .Lxx */ | |
1481 | if (IS_CSKY_V1 (mach_flag)) | |
1482 | br_self = CSKYV1_BR_INSN | 0x7ff; | |
1483 | else | |
1484 | br_self = CSKYV2_BR_INSN; | |
1485 | md_number_to_chars (csky_insn.output, br_self, 2); | |
1486 | if (!isforce) | |
1487 | { | |
1488 | csky_insn.output = frag_more (2); | |
1489 | /* .Lxx: br .Lxx */ | |
1490 | md_number_to_chars (csky_insn.output, br_self, 2); | |
1491 | } | |
1492 | } | |
1493 | mapping_state (MAP_DATA); | |
1494 | ||
1495 | record_alignment (now_seg, 2); | |
1496 | if (IS_CSKY_ARCH_V1 (mach_flag)) | |
1497 | frag_align_pattern (2, | |
1498 | (target_big_endian | |
1499 | ? v1_nop_insn_big : v1_nop_insn_little), | |
1500 | 2, 0); | |
1501 | else | |
1502 | frag_align (2, 0, 3); | |
1503 | ||
1504 | colon (S_GET_NAME (poolsym)); | |
1505 | ||
1506 | for (i = 0, p = litpool; i < poolsize; i += (p->isdouble ? 2 : 1), p++) | |
1507 | { | |
1508 | insn_reloc = p->r_type; | |
1509 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_IE32 | |
1510 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
1511 | || insn_reloc == BFD_RELOC_CKCORE_TLS_GD32) | |
1512 | literal_insn_offset = p; | |
1513 | if (p->isdouble) | |
1514 | { | |
1515 | if (target_big_endian) | |
1516 | { | |
1517 | p->e.X_add_number = p->dbnum >> 32; | |
1518 | emit_expr (& p->e, 4); | |
1519 | p->e.X_add_number = p->dbnum & 0xffffffff; | |
1520 | emit_expr (& p->e, 4); | |
1521 | } | |
1522 | else | |
1523 | { | |
1524 | p->e.X_add_number = p->dbnum & 0xffffffff; | |
1525 | emit_expr (& p->e, 4); | |
1526 | p->e.X_add_number = p->dbnum >> 32; | |
1527 | emit_expr (& p->e, 4); | |
1528 | } | |
1529 | } | |
1530 | else | |
1531 | emit_expr (& p->e, 4); | |
1532 | } | |
1533 | ||
1534 | if (isforce && IS_CSKY_ARCH_V2 (mach_flag)) | |
1535 | { | |
1536 | /* Add one nop insn at end of literal for disassembler. */ | |
1537 | mapping_state (MAP_TEXT); | |
1538 | csky_insn.output = frag_more (2); | |
1539 | md_number_to_chars (csky_insn.output, CSKYV2_INST_NOP, 2); | |
1540 | } | |
1541 | ||
1542 | insn_reloc = BFD_RELOC_NONE; | |
1543 | ||
1544 | if (brarsym != NULL) | |
1545 | colon (S_GET_NAME (brarsym)); | |
1546 | poolsize = 0; | |
1547 | } | |
1548 | ||
1549 | static int | |
1550 | enter_literal (expressionS *e, | |
1551 | int ispcrel, | |
1552 | unsigned char isdouble, | |
1553 | uint64_t dbnum) | |
1554 | { | |
1555 | unsigned int i; | |
1556 | struct literal * p; | |
1557 | if (poolsize >= MAX_POOL_SIZE - 2) | |
1558 | { | |
1559 | /* The literal pool is as full as we can handle. We have | |
1560 | to be 2 entries shy of the 1024/4=256 entries because we | |
1561 | have to allow for the branch (2 bytes) and the alignment | |
1562 | (2 bytes before the first insn referencing the pool and | |
1563 | 2 bytes before the pool itself) == 6 bytes, rounds up | |
1564 | to 2 entries. */ | |
1565 | ||
1566 | /* Save the parsed symbol's reloc. */ | |
1567 | enum bfd_reloc_code_real last_reloc_before_dump = insn_reloc; | |
1568 | dump_literals (1); | |
1569 | insn_reloc = last_reloc_before_dump; | |
1570 | } | |
1571 | ||
1572 | if (poolsize == 0) | |
1573 | { | |
1574 | /* Create new literal pool. */ | |
1575 | if (++ poolnumber > 0xFFFF) | |
1576 | as_fatal (_("more than 65K literal pools")); | |
1577 | ||
1578 | make_internal_label (poolname, POOL_START_LABEL, poolnumber); | |
1579 | poolsym = symbol_make (poolname); | |
1580 | symbol_table_insert (poolsym); | |
1581 | poolspan = 0; | |
1582 | } | |
1583 | ||
1584 | /* Search pool for value so we don't have duplicates. */ | |
1585 | for (p = litpool, i = 0; i < poolsize; i += (p->isdouble ? 2 : 1), p++) | |
1586 | { | |
1587 | if (e->X_op == p->e.X_op | |
1588 | && e->X_add_symbol == p->e.X_add_symbol | |
1589 | && e->X_add_number == p->e.X_add_number | |
1590 | && ispcrel == p->ispcrel | |
1591 | && insn_reloc == p->r_type | |
1592 | && isdouble == p->isdouble | |
1593 | && insn_reloc != BFD_RELOC_CKCORE_TLS_GD32 | |
1594 | && insn_reloc != BFD_RELOC_CKCORE_TLS_LDM32 | |
1595 | && insn_reloc != BFD_RELOC_CKCORE_TLS_LDO32 | |
1596 | && insn_reloc != BFD_RELOC_CKCORE_TLS_IE32 | |
1597 | && insn_reloc != BFD_RELOC_CKCORE_TLS_LE32) | |
1598 | { | |
1599 | p->refcnt ++; | |
1600 | return i; | |
1601 | } | |
1602 | } | |
1603 | p->refcnt = 1; | |
1604 | p->ispcrel = ispcrel; | |
1605 | p->e = *e; | |
1606 | p->r_type = insn_reloc; | |
1607 | p->isdouble = isdouble; | |
1608 | if (isdouble) | |
1609 | p->dbnum = dbnum; | |
1610 | ||
1611 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
1612 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
1613 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
1614 | { | |
1615 | p->tls_addend.frag = frag_now; | |
1616 | p->tls_addend.offset = csky_insn.output - frag_now->fr_literal; | |
1617 | literal_insn_offset = p; | |
1618 | } | |
1619 | poolsize += (p->isdouble ? 2 : 1); | |
1620 | return i; | |
1621 | } | |
1622 | ||
1623 | /* Check whether we must dump the literal pool here. | |
1624 | kind == 0 is any old instruction. | |
1625 | kind > 0 means we just had a control transfer instruction. | |
1626 | kind == 1 means within a function. | |
1627 | kind == 2 means we just left a function. | |
1628 | ||
1629 | OFFSET is the length of the insn being processed. | |
1630 | ||
1631 | SPANCLOSE and SPANEXIT are smaller numbers than SPANPANIC. | |
1632 | SPANPANIC means that we must dump now. | |
1633 | The dump_literals (1) call inserts a branch around the table, so | |
1634 | we first look to see if its a situation where we won't have to | |
1635 | insert a branch (e.g., the previous instruction was an unconditional | |
1636 | branch). | |
1637 | ||
1638 | SPANPANIC is the point where we must dump a single-entry pool. | |
1639 | it accounts for alignments and an inserted branch. | |
1640 | the 'poolsize*2' accounts for the scenario where we do: | |
1641 | lrw r1,lit1; lrw r2,lit2; lrw r3,lit3 | |
1642 | Note that the 'lit2' reference is 2 bytes further along | |
1643 | but the literal it references will be 4 bytes further along, | |
1644 | so we must consider the poolsize into this equation. | |
1645 | This is slightly over-cautious, but guarantees that we won't | |
1646 | panic because a relocation is too distant. */ | |
1647 | ||
1648 | static void | |
1649 | check_literals (int kind, int offset) | |
1650 | { | |
1651 | poolspan += offset; | |
1652 | ||
1653 | if ((poolspan > SPANEXIT || do_func_dump) | |
1654 | && kind > 1 | |
1655 | && (do_br_dump || do_func_dump)) | |
1656 | dump_literals (0); | |
1657 | else if (poolspan > SPANCLOSE && (kind > 0) && do_br_dump) | |
1658 | dump_literals (0); | |
1659 | else if (poolspan | |
1660 | >= (SPANPANIC - (IS_CSKY_ARCH_V1 (mach_flag) ? poolsize * 2 : 0))) | |
1661 | dump_literals (1); | |
1662 | /* We have not dumped literal pool before insn1, | |
1663 | and will not dump literal pool between insn1 and insnN+1, | |
1664 | so reset poolspan to original length. */ | |
1665 | else if (do_noliteraldump == 1) | |
1666 | poolspan -= offset; | |
1667 | ||
1668 | if (do_noliteraldump == 1) | |
1669 | do_noliteraldump = 0; | |
1670 | } | |
1671 | ||
1672 | /* The next group of functions are helpers for parsing various kinds | |
1673 | of instruction operand syntax. */ | |
1674 | ||
1675 | /* Parse operands of the form | |
1676 | <symbol>@GOTOFF+<nnn> | |
1677 | and similar .plt or .got references. | |
1678 | ||
1679 | If we find one, set up the correct relocation in RELOC and copy the | |
1680 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
1681 | parsing by the calling routine. Return this buffer, and if ADJUST | |
1682 | is non-null set it to the length of the string we removed from the | |
1683 | input line. Otherwise return NULL. */ | |
1684 | ||
1685 | static char * | |
1686 | lex_got (enum bfd_reloc_code_real *reloc, | |
1687 | int *adjust) | |
1688 | { | |
1689 | struct _gotrel | |
1690 | { | |
1691 | const char *str; | |
1692 | const enum bfd_reloc_code_real rel; | |
1693 | }; | |
1694 | static const struct _gotrel gotrel[] = | |
1695 | { | |
1696 | { "GOTOFF", BFD_RELOC_CKCORE_GOTOFF }, | |
1697 | { "GOTPC", BFD_RELOC_CKCORE_GOTPC }, | |
1698 | { "GOTTPOFF", BFD_RELOC_CKCORE_TLS_IE32 }, | |
1699 | { "GOT", BFD_RELOC_CKCORE_GOT32 }, | |
1700 | { "PLT", BFD_RELOC_CKCORE_PLT32 }, | |
1701 | { "BTEXT", BFD_RELOC_CKCORE_TOFFSET_LO16}, | |
1702 | { "BDATA", BFD_RELOC_CKCORE_DOFFSET_LO16}, | |
1703 | { "TLSGD32", BFD_RELOC_CKCORE_TLS_GD32 }, | |
1704 | { "TLSLDM32", BFD_RELOC_CKCORE_TLS_LDM32 }, | |
1705 | { "TLSLDO32", BFD_RELOC_CKCORE_TLS_LDO32 }, | |
1706 | { "TPOFF", BFD_RELOC_CKCORE_TLS_LE32 } | |
1707 | }; | |
1708 | ||
1709 | char *cp; | |
1710 | unsigned int j; | |
1711 | ||
1712 | for (cp = input_line_pointer; *cp != '@'; cp++) | |
1713 | if (is_end_of_line[(unsigned char) *cp]) | |
1714 | return NULL; | |
1715 | ||
1716 | for (j = 0; j < sizeof (gotrel) / sizeof (gotrel[0]); j++) | |
1717 | { | |
1718 | int len = strlen (gotrel[j].str); | |
1719 | ||
1720 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) | |
1721 | { | |
1722 | if (gotrel[j].rel != 0) | |
1723 | { | |
1724 | *reloc = gotrel[j].rel; | |
1725 | if (adjust) | |
1726 | *adjust = len; | |
1727 | ||
1728 | /* input_line_pointer is the str pointer after relocation | |
1729 | token like @GOTOFF. */ | |
1730 | input_line_pointer += len + 1; | |
1731 | return input_line_pointer; | |
1732 | } | |
1733 | ||
1734 | csky_show_error (ERROR_RELOC_ILLEGAL, 0, | |
1735 | (void *)gotrel[j].str, NULL); | |
1736 | return NULL; | |
1737 | } | |
1738 | } | |
1739 | ||
1740 | /* Might be a symbol version string. Don't as_bad here. */ | |
1741 | return NULL; | |
1742 | } | |
1743 | ||
1744 | /* Parse an expression, returning it in E. */ | |
1745 | ||
1746 | static char * | |
1747 | parse_exp (char *s, expressionS *e) | |
1748 | { | |
1749 | char *save; | |
1750 | char *new; | |
1751 | ||
1752 | /* Skip whitespace. */ | |
1753 | while (ISSPACE (*s)) | |
1754 | ++s; | |
1755 | ||
1756 | save = input_line_pointer; | |
1757 | input_line_pointer = s; | |
1758 | ||
1759 | insn_reloc = BFD_RELOC_NONE; | |
1760 | expression (e); | |
1761 | lex_got (&insn_reloc, NULL); | |
1762 | ||
1763 | if (e->X_op == O_absent) | |
1764 | SET_ERROR_NUMBER (ERROR_MISSING_OPERAND, NULL); | |
1765 | ||
1766 | new = input_line_pointer; | |
1767 | input_line_pointer = save; | |
1768 | ||
1769 | return new; | |
1770 | } | |
1771 | ||
1772 | /* Parse a floating-point number from S into its target representation. | |
1773 | If ISDOUBLE is true, return the result in *DBNUM; otherwise | |
1774 | it's returned in E->X_add_number. Returns the result of advancing | |
1775 | S past the constant. */ | |
1776 | ||
1777 | static char * | |
1778 | parse_fexp (char *s, expressionS *e, unsigned char isdouble, uint64_t *dbnum) | |
1779 | { | |
1780 | int length; /* Number of chars in an object. */ | |
1781 | register char const *err = NULL; /* Error from scanning float literal. */ | |
1782 | char temp[8]; | |
1783 | ||
1784 | /* input_line_pointer->1st char of a flonum (we hope!). */ | |
1785 | input_line_pointer = s; | |
1786 | ||
1787 | if (input_line_pointer[0] == '0' | |
1788 | && ISALPHA (input_line_pointer[1])) | |
1789 | input_line_pointer += 2; | |
1790 | ||
1791 | if (isdouble) | |
1792 | err = md_atof ('d', temp, &length); | |
1793 | else | |
1794 | err = md_atof ('f', temp, &length); | |
1795 | know (length <= 8); | |
1796 | know (err != NULL || length > 0); | |
1797 | ||
1798 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
1799 | as_bad (_("immediate operand required")); | |
1800 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
1801 | input_line_pointer++; | |
1802 | ||
1803 | if (err) | |
1804 | { | |
1805 | as_bad (_("bad floating literal: %s"), err); | |
1806 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
1807 | input_line_pointer++; | |
1808 | know (is_end_of_line[(unsigned char) input_line_pointer[-1]]); | |
1809 | return input_line_pointer; | |
1810 | } | |
1811 | ||
1812 | e->X_add_symbol = 0x0; | |
1813 | e->X_op_symbol = 0x0; | |
1814 | e->X_op = O_constant; | |
1815 | e->X_unsigned = 1; | |
1816 | e->X_md = 0x0; | |
1817 | ||
1818 | if (!isdouble) | |
1819 | { | |
1820 | uint32_t fnum; | |
1821 | if (target_big_endian) | |
1822 | fnum = (((temp[0] << 24) & 0xffffffff) | |
1823 | | ((temp[1] << 16) & 0xffffff) | |
1824 | | ((temp[2] << 8) & 0xffff) | |
1825 | | (temp[3] & 0xff)); | |
1826 | else | |
1827 | fnum = (((temp[3] << 24) & 0xffffffff) | |
1828 | | ((temp[2] << 16) & 0xffffff) | |
1829 | | ((temp[1] << 8) & 0xffff) | |
1830 | | (temp[0] & 0xff)); | |
1831 | e->X_add_number = fnum; } | |
1832 | else | |
1833 | { | |
1834 | if (target_big_endian) | |
1835 | { | |
1836 | *dbnum = (((temp[0] << 24) & 0xffffffff) | |
1837 | | ((temp[1] << 16) & 0xffffff) | |
1838 | | ((temp[2] << 8) & 0xffff) | |
1839 | | (temp[3] & 0xff)); | |
1840 | *dbnum <<= 32; | |
1841 | *dbnum |= (((temp[4] << 24) & 0xffffffff) | |
1842 | | ((temp[5] << 16) & 0xffffff) | |
1843 | | ((temp[6] << 8) & 0xffff) | |
1844 | | (temp[7] & 0xff)); | |
1845 | } | |
1846 | else | |
1847 | { | |
1848 | *dbnum = (((temp[7] << 24) & 0xffffffff) | |
1849 | | ((temp[6] << 16) & 0xffffff) | |
1850 | | ((temp[5] << 8) & 0xffff) | |
1851 | | (temp[4] & 0xff)); | |
1852 | *dbnum <<= 32; | |
1853 | *dbnum |= (((temp[3] << 24) & 0xffffffff) | |
1854 | | ((temp[2] << 16) & 0xffffff) | |
1855 | | ((temp[1] << 8) & 0xffff) | |
1856 | | (temp[0] & 0xff)); | |
1857 | } | |
1858 | } | |
1859 | return input_line_pointer; | |
1860 | } | |
1861 | ||
1862 | static char * | |
1863 | parse_rt (char *s, | |
1864 | int ispcrel, | |
1865 | expressionS *ep, | |
1866 | long reg ATTRIBUTE_UNUSED) | |
1867 | { | |
1868 | expressionS e; | |
1869 | int n; | |
1870 | ||
1871 | if (ep) | |
1872 | /* Indicate nothing there. */ | |
1873 | ep->X_op = O_absent; | |
1874 | ||
1875 | if (*s == '[') | |
1876 | { | |
1877 | s = parse_exp (s + 1, &e); | |
1878 | ||
1879 | if (*s == ']') | |
1880 | s++; | |
1881 | else | |
1882 | SET_ERROR_NUMBER (ERROR_MISSING_RSQUARE_BRACKETS, NULL); | |
1883 | ||
1884 | if (ep) | |
1885 | *ep = e; | |
1886 | } | |
1887 | else | |
1888 | { | |
1889 | s = parse_exp (s, &e); | |
1890 | if (BFD_RELOC_CKCORE_DOFFSET_LO16 == insn_reloc | |
1891 | || BFD_RELOC_CKCORE_TOFFSET_LO16 == insn_reloc) | |
1892 | { | |
1893 | if (ep) | |
1894 | *ep = e; | |
1895 | return s; | |
1896 | } | |
1897 | if (ep) | |
1898 | *ep = e; | |
1899 | /* If the instruction has work, literal handling is in the work. */ | |
1900 | if (!csky_insn.opcode->work) | |
1901 | { | |
1902 | n = enter_literal (&e, ispcrel, 0, 0); | |
1903 | if (ep) | |
1904 | *ep = e; | |
1905 | ||
1906 | /* Create a reference to pool entry. */ | |
1907 | ep->X_op = O_symbol; | |
1908 | ep->X_add_symbol = poolsym; | |
1909 | ep->X_add_number = n << 2; | |
1910 | } | |
1911 | } | |
1912 | return s; | |
1913 | } | |
1914 | ||
1915 | static char * | |
1916 | parse_rtf (char *s, int ispcrel, expressionS *ep) | |
1917 | { | |
1918 | expressionS e; | |
1919 | int n = 0; | |
1920 | ||
1921 | if (ep) | |
1922 | /* Indicate nothing there. */ | |
1923 | ep->X_op = O_absent; | |
1924 | ||
1925 | if (*s == '[') | |
1926 | { | |
1927 | s = parse_exp (s + 1, & e); | |
1928 | ||
1929 | if (*s == ']') | |
1930 | s++; | |
1931 | else | |
1932 | as_bad (_("missing ']'")); | |
1933 | ||
1934 | if (ep) | |
1935 | *ep = e; | |
1936 | } | |
1937 | else | |
1938 | { | |
1939 | uint64_t dbnum; | |
1940 | if (strstr (csky_insn.opcode->mnemonic, "flrws")) | |
1941 | { | |
1942 | s = parse_fexp (s, &e, 0, &dbnum); | |
1943 | n = enter_literal (&e, ispcrel, 0, dbnum); | |
1944 | } | |
1945 | else if (strstr (csky_insn.opcode->mnemonic, "flrwd")) | |
1946 | { | |
1947 | s = parse_fexp (s, &e, 1, &dbnum); | |
1948 | n = enter_literal (&e, ispcrel, 1, dbnum); | |
1949 | } | |
1950 | else | |
1951 | as_bad (_("unrecognized opcode")); | |
1952 | ||
1953 | if (ep) | |
1954 | *ep = e; | |
1955 | ||
1956 | /* Create a reference to pool entry. */ | |
1957 | ep->X_op = O_symbol; | |
1958 | ep->X_add_symbol = poolsym; | |
1959 | ep->X_add_number = n << 2; | |
1960 | } | |
1961 | return s; | |
1962 | } | |
1963 | ||
1964 | static bfd_boolean | |
1965 | parse_type_ctrlreg (char** oper) | |
1966 | { | |
1967 | int i = -1; | |
1968 | int len = 0; | |
1969 | ||
1970 | if (TOLOWER (*(*oper + 0)) == 'c' | |
1971 | && TOLOWER (*(*oper + 1)) == 'r' | |
1972 | && ISDIGIT (*(*oper + 2))) | |
1973 | { | |
1974 | /* The control registers are named crxx. */ | |
1975 | i = *(*oper + 2) - 0x30; | |
1976 | i = ISDIGIT (*(*oper + 3)) ? (*(*oper + 3) - 0x30) + 10 * i : i; | |
1977 | len = ISDIGIT (*(*oper + 3)) ? 4 : 3; | |
1978 | *oper += len; | |
1979 | } | |
1980 | else if (!(TOLOWER (*(*oper + 0)) == 'c' | |
1981 | && TOLOWER (*(*oper + 1)) == 'r')) | |
1982 | { | |
1983 | /* The control registers are aliased. */ | |
1984 | struct csky_reg *reg = &csky_ctrl_regs[0]; | |
1985 | while (reg->name) | |
1986 | { | |
1987 | if (memcmp (*oper, reg->name, strlen (reg->name)) == 0 | |
1988 | && (!reg->flag || (isa_flag & reg->flag))) | |
1989 | { | |
1990 | i = reg->index; | |
1991 | len = strlen (reg->name); | |
1992 | *oper += len; | |
1993 | break; | |
1994 | } | |
1995 | reg++; | |
1996 | } | |
1997 | } | |
1998 | ||
1999 | if (IS_CSKY_V2 (mach_flag)) | |
2000 | { | |
2001 | char *s = *oper; | |
2002 | int crx; | |
2003 | int sel; | |
2004 | if (i != -1) | |
2005 | { | |
2006 | crx = i; | |
2007 | sel = 0; | |
2008 | } | |
2009 | else | |
2010 | { | |
2011 | if (s[0] == 'c' && s[1] == 'r') | |
2012 | { | |
2013 | s += 2; | |
2014 | if (*s == '<') | |
2015 | { | |
2016 | s++; | |
2017 | if (s[0] == '3' && s[1] >= '0' && s[1] <= '1') | |
2018 | { | |
2019 | crx = 30 + s[1] - '0'; | |
2020 | s += 2; | |
2021 | } | |
2022 | else if (s[0] == '2' && s[1] >= '0' && s[1] <= '9') | |
2023 | { | |
2024 | crx = 20 + s[1] - '0'; | |
2025 | s += 2; | |
2026 | } | |
2027 | else if (s[0] == '1' && s[1] >= '0' && s[1] <= '9') | |
2028 | { | |
2029 | crx = 10 + s[1] - '0'; | |
2030 | s += 2; | |
2031 | } | |
2032 | else if (s[0] >= '0' && s[0] <= '9') | |
2033 | { | |
2034 | crx = s[0] - '0'; | |
2035 | s += 1; | |
2036 | } | |
2037 | else | |
2038 | { | |
2039 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, "control"); | |
2040 | return FALSE; | |
2041 | } | |
2042 | if (*s == ',') | |
2043 | s++; | |
2044 | else | |
2045 | { | |
2046 | SET_ERROR_NUMBER (ERROR_CREG_ILLEGAL, NULL); | |
2047 | return FALSE; | |
2048 | } | |
2049 | char *pS = s; | |
2050 | while (*pS != '>' && !is_end_of_line[(unsigned char) *pS]) | |
2051 | pS++; | |
2052 | if (*pS == '>') | |
2053 | *pS = '\0'; | |
2054 | else | |
2055 | { | |
2056 | /* Error. Missing '>'. */ | |
2057 | SET_ERROR_NUMBER (ERROR_MISSING_RANGLE_BRACKETS, NULL); | |
2058 | return FALSE; | |
2059 | } | |
2060 | expressionS e; | |
2061 | s = parse_exp (s, &e); | |
2062 | if (e.X_op == O_constant | |
2063 | && e.X_add_number >= 0 | |
2064 | && e.X_add_number <= 31) | |
2065 | { | |
2066 | *oper = s; | |
2067 | sel = e.X_add_number; | |
2068 | } | |
2069 | else | |
2070 | return FALSE; | |
2071 | } | |
2072 | else | |
2073 | { | |
2074 | /* Error. Missing '<'. */ | |
2075 | SET_ERROR_NUMBER (ERROR_MISSING_LANGLE_BRACKETS, NULL); | |
2076 | return FALSE; | |
2077 | } | |
2078 | } | |
2079 | else | |
2080 | { | |
2081 | SET_ERROR_NUMBER (ERROR_CREG_ILLEGAL, NULL); | |
2082 | return FALSE; | |
2083 | } | |
2084 | } | |
2085 | i = (sel << 5) | crx; | |
2086 | } | |
2087 | csky_insn.val[csky_insn.idx++] = i; | |
2088 | return TRUE; | |
2089 | } | |
2090 | ||
2091 | static bfd_boolean | |
2092 | is_reg_sp_with_bracket (char **oper) | |
2093 | { | |
2094 | const char **regs; | |
2095 | int sp_idx; | |
2096 | int len; | |
2097 | ||
2098 | if (IS_CSKY_V1 (mach_flag)) | |
2099 | sp_idx = 0; | |
2100 | else | |
2101 | sp_idx = 14; | |
2102 | ||
2103 | if (**oper != '(') | |
2104 | return FALSE; | |
2105 | *oper += 1; | |
2106 | regs = csky_general_reg; | |
2107 | len = strlen (regs[sp_idx]); | |
2108 | if (memcmp (*oper, regs[sp_idx], len) == 0) | |
2109 | { | |
2110 | *oper += len; | |
2111 | if (**oper != ')') | |
2112 | return FALSE; | |
2113 | *oper += 1; | |
2114 | csky_insn.val[csky_insn.idx++] = sp_idx; | |
2115 | return TRUE; | |
2116 | } | |
2117 | else | |
2118 | { | |
2119 | if (IS_CSKY_V1 (mach_flag)) | |
2120 | regs = cskyv1_general_alias_reg; | |
2121 | else | |
2122 | regs = cskyv2_general_alias_reg; | |
2123 | len = strlen (regs[sp_idx]); | |
2124 | if (memcmp (*oper, regs[sp_idx], len) == 0) | |
2125 | { | |
2126 | *oper += len; | |
2127 | if (**oper != ')') | |
2128 | return FALSE; | |
2129 | *oper += 1; | |
2130 | return TRUE; | |
2131 | } | |
2132 | } | |
2133 | return FALSE; | |
2134 | } | |
2135 | ||
2136 | static bfd_boolean | |
2137 | is_reg_sp (char **oper) | |
2138 | { | |
2139 | const char **regs; | |
2140 | int sp_idx; | |
2141 | int len; | |
2142 | if (IS_CSKY_V1 (mach_flag)) | |
2143 | sp_idx = 0; | |
2144 | else | |
2145 | sp_idx = 14; | |
2146 | ||
2147 | regs = csky_general_reg; | |
2148 | len = strlen (regs[sp_idx]); | |
2149 | if (memcmp (*oper, regs[sp_idx], len) == 0) | |
2150 | { | |
2151 | *oper += len; | |
2152 | csky_insn.val[csky_insn.idx++] = sp_idx; | |
2153 | return TRUE; | |
2154 | } | |
2155 | else | |
2156 | { | |
2157 | if (IS_CSKY_V1 (mach_flag)) | |
2158 | regs = cskyv1_general_alias_reg; | |
2159 | else | |
2160 | regs = cskyv2_general_alias_reg; | |
2161 | len = strlen (regs[sp_idx]); | |
2162 | if (memcmp (*oper, regs[sp_idx], len) == 0) | |
2163 | { | |
2164 | *oper += len; | |
2165 | csky_insn.val[csky_insn.idx++] = sp_idx; | |
2166 | return TRUE; | |
2167 | } | |
2168 | } | |
2169 | return FALSE; | |
2170 | } | |
2171 | ||
2172 | static int | |
2173 | csky_get_reg_val (char *str, int *len) | |
2174 | { | |
2175 | long reg = 0; | |
2176 | if (TOLOWER (str[0]) == 'r' && ISDIGIT (str[1])) | |
2177 | { | |
2178 | if (ISDIGIT (str[1]) && ISDIGIT (str[2])) | |
2179 | { | |
2180 | reg = (str[1] - '0') * 10 + str[2] - '0'; | |
2181 | *len = 3; | |
2182 | } | |
2183 | else if (ISDIGIT (str[1])) | |
2184 | { | |
2185 | reg = str[1] - '0'; | |
2186 | *len = 2; | |
2187 | } | |
2188 | else | |
2189 | return -1; | |
2190 | } | |
2191 | else if (TOLOWER (str[0]) == 's' && TOLOWER (str[1]) == 'p' | |
2192 | && !ISDIGIT (str[2])) | |
2193 | { | |
2194 | /* sp. */ | |
2195 | if (IS_CSKY_V1 (mach_flag)) | |
2196 | reg = 0; | |
2197 | else | |
2198 | reg = 14; | |
2199 | *len = 2; | |
2200 | } | |
2201 | else if (TOLOWER (str[0]) == 'g' && TOLOWER (str[1]) == 'b' | |
2202 | && !ISDIGIT (str[2])) | |
2203 | { | |
2204 | /* gb. */ | |
2205 | if (IS_CSKY_V1 (mach_flag)) | |
2206 | reg = 14; | |
2207 | else | |
2208 | reg = 28; | |
2209 | *len = 2; | |
2210 | } | |
2211 | else if (TOLOWER (str[0]) == 'l' && TOLOWER (str[1]) == 'r' | |
2212 | && !ISDIGIT (str[2])) | |
2213 | { | |
2214 | /* lr. */ | |
2215 | reg = 15; | |
2216 | *len = 2; | |
2217 | } | |
2218 | else if (TOLOWER (str[0]) == 't' && TOLOWER (str[1]) == 'l' | |
2219 | && TOLOWER (str[2]) == 's' && !ISDIGIT (str[3])) | |
2220 | { | |
2221 | /* tls. */ | |
2222 | if (IS_CSKY_V2 (mach_flag)) | |
2223 | reg = 31; | |
2224 | else | |
2225 | return -1; | |
2226 | *len = 3; | |
2227 | } | |
2228 | else if (TOLOWER (str[0]) == 's' && TOLOWER (str[1]) == 'v' | |
2229 | && TOLOWER (str[2]) == 'b' && TOLOWER (str[3]) == 'r') | |
2230 | { | |
2231 | if (IS_CSKY_V2 (mach_flag)) | |
2232 | reg = 30; | |
2233 | else | |
2234 | return -1; | |
2235 | *len = 4; | |
2236 | } | |
2237 | else if (TOLOWER (str[0]) == 'a') | |
2238 | { | |
2239 | if (ISDIGIT (str[1]) && !ISDIGIT (str[2])) | |
2240 | { | |
2241 | if (IS_CSKY_V1 (mach_flag) && (str[1] - '0') <= 5) | |
2242 | /* a0 - a5. */ | |
2243 | reg = 2 + str[1] - '0'; | |
2244 | else if (IS_CSKY_V2 (mach_flag) && (str[1] - '0') <= 3) | |
2245 | /* a0 - a3. */ | |
2246 | reg = str[1] - '0'; | |
2247 | else | |
2248 | return -1; | |
2249 | *len = 2; | |
2250 | } | |
2251 | } | |
2252 | else if (TOLOWER (str[0]) == 't') | |
2253 | { | |
2254 | if (IS_CSKY_V2 (mach_flag)) | |
2255 | { | |
2256 | reg = atoi (str + 1); | |
2257 | if (reg > 9) | |
2258 | return -1; | |
2259 | ||
2260 | if (reg > 1) | |
2261 | /* t2 - t9. */ | |
2262 | reg = reg + 16; | |
2263 | else | |
2264 | /* t0 - t1. */ | |
2265 | reg = reg + 12; | |
2266 | *len = 2; | |
2267 | } | |
2268 | } | |
2269 | else if (TOLOWER (str[0]) == 'l') | |
2270 | { | |
2271 | if (str[1] < '0' || str[1] > '9') | |
2272 | return -1; | |
2273 | if (IS_CSKY_V2 (mach_flag)) | |
2274 | { | |
2275 | reg = atoi (str + 1); | |
2276 | if (reg > 9) | |
2277 | return -1; | |
2278 | if (reg > 7) | |
2279 | /* l8 - l9. */ | |
2280 | reg = reg + 8; | |
2281 | else | |
2282 | /* l0 - l7. */ | |
2283 | reg = reg + 4; | |
2284 | } | |
2285 | else | |
2286 | { | |
2287 | reg = atoi (str + 1); | |
2288 | if (reg > 5) | |
2289 | return -1; | |
2290 | /* l0 - l6 -> r8 - r13. */ | |
2291 | reg = reg + 8; | |
2292 | } | |
2293 | *len = 2; | |
2294 | } | |
2295 | else | |
2296 | return -1; | |
2297 | ||
2298 | /* Is register available? */ | |
2299 | if (IS_CSKY_ARCH_801 (mach_flag)) | |
2300 | { | |
2301 | /* CK801 register range is r0-r8 & r13-r15. */ | |
2302 | if ((reg > 8 && reg < 13) || reg > 15) | |
2303 | { | |
2304 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg); | |
2305 | return -1; | |
2306 | } | |
2307 | } | |
2308 | else if (IS_CSKY_ARCH_802 (mach_flag)) | |
2309 | { | |
2310 | /* CK802 register range is r0-r15 & r23-r25 & r30. */ | |
2311 | if ((reg > 15 && reg < 23) || (reg > 25 && reg != 30)) | |
2312 | { | |
2313 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg); | |
2314 | return -1; | |
2315 | } | |
2316 | } | |
2317 | else if (reg > 31 || reg < 0) | |
2318 | { | |
2319 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg); | |
2320 | return -1; | |
2321 | } | |
2322 | ||
2323 | return reg; | |
2324 | } | |
2325 | ||
2326 | static int | |
2327 | csky_get_freg_val (char *str, int *len) | |
2328 | { | |
2329 | int reg = 0; | |
2330 | char *s = NULL; | |
2331 | if ((str[0] == 'v' || str[0] == 'f') && (str[1] == 'r')) | |
2332 | { | |
2333 | /* It is fpu register. */ | |
2334 | s = &str[2]; | |
2335 | while (ISDIGIT (*s)) | |
2336 | { | |
2337 | reg = reg * 10 + (*s) - '0'; | |
2338 | s++; | |
2339 | } | |
2340 | if (reg > 31) | |
2341 | return -1; | |
2342 | } | |
2343 | else | |
2344 | return -1; | |
2345 | *len = s - str; | |
2346 | return reg; | |
2347 | } | |
2348 | ||
2349 | static bfd_boolean | |
2350 | is_reglist_legal (char **oper) | |
2351 | { | |
2352 | int reg1 = -1; | |
2353 | int reg2 = -1; | |
2354 | int len = 0; | |
2355 | reg1 = csky_get_reg_val (*oper, &len); | |
2356 | *oper += len; | |
2357 | ||
2358 | if (reg1 == -1 || (IS_CSKY_V1 (mach_flag) && (reg1 == 0 || reg1 == 15))) | |
2359 | { | |
2360 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2361 | "The first reg must not be r0/r15"); | |
2362 | return FALSE; | |
2363 | } | |
2364 | ||
2365 | if (**oper != '-') | |
2366 | { | |
2367 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2368 | "The operand format must be rx-ry"); | |
2369 | return FALSE; | |
2370 | } | |
2371 | *oper += 1; | |
2372 | ||
2373 | reg2 = csky_get_reg_val (*oper, &len); | |
2374 | *oper += len; | |
2375 | ||
2376 | if (reg2 == -1 || (IS_CSKY_V1 (mach_flag) && reg1 == 15)) | |
2377 | { | |
2378 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2379 | "The operand format must be r15 in C-SKY V1"); | |
2380 | return FALSE; | |
2381 | } | |
2382 | if (IS_CSKY_V2 (mach_flag)) | |
2383 | { | |
2384 | if (reg2 < reg1) | |
2385 | { | |
2386 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2387 | "The operand format must be rx-ry (rx < ry)"); | |
2388 | return FALSE; | |
2389 | } | |
2390 | reg2 = reg2 - reg1; | |
2391 | reg1 <<= 5; | |
2392 | reg1 |= reg2; | |
2393 | } | |
2394 | csky_insn.val[csky_insn.idx++] = reg1; | |
2395 | return TRUE; | |
2396 | } | |
2397 | ||
2398 | static bfd_boolean | |
2399 | is_freglist_legal (char **oper) | |
2400 | { | |
2401 | int reg1 = -1; | |
2402 | int reg2 = -1; | |
2403 | int len = 0; | |
2404 | reg1 = csky_get_freg_val (*oper, &len); | |
2405 | *oper += len; | |
2406 | ||
2407 | if (reg1 == -1) | |
2408 | { | |
2409 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2410 | "The fpu register format is not recognized."); | |
2411 | return FALSE; | |
2412 | } | |
2413 | ||
2414 | if (**oper != '-') | |
2415 | { | |
2416 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2417 | "The operand format must be vrx-vry/frx-fry."); | |
2418 | return FALSE; | |
2419 | } | |
2420 | *oper += 1; | |
2421 | ||
2422 | reg2 = csky_get_freg_val (*oper, &len); | |
2423 | *oper += len; | |
2424 | ||
2425 | if (reg2 == -1) | |
2426 | { | |
2427 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2428 | "The fpu register format is not recognized."); | |
2429 | return FALSE; | |
2430 | } | |
2431 | if (reg2 < reg1) | |
2432 | { | |
2433 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2434 | "The operand format must be rx-ry(rx < ry)"); | |
2435 | return FALSE; | |
2436 | } | |
2437 | reg2 = reg2 - reg1; | |
2438 | reg2 <<= 4; | |
2439 | reg1 |= reg2; | |
2440 | csky_insn.val[csky_insn.idx++] = reg1; | |
2441 | return TRUE; | |
2442 | } | |
2443 | ||
2444 | static bfd_boolean | |
2445 | is_reglist_dash_comma_legal (char **oper, struct operand *oprnd) | |
2446 | { | |
2447 | int reg1 = -1; | |
2448 | int reg2 = -1; | |
2449 | int len = 0; | |
2450 | int list = 0; | |
2451 | int flag = 0; | |
2452 | int temp = 0; | |
2453 | while (**oper != '\n' && **oper != '\0') | |
2454 | { | |
2455 | reg1 = csky_get_reg_val (*oper, &len); | |
2456 | if (reg1 == -1) | |
2457 | { | |
2458 | SET_ERROR_NUMBER (ERROR_REG_LIST, NULL); | |
2459 | return FALSE; | |
2460 | } | |
2461 | flag |= (1 << reg1); | |
2462 | *oper += len; | |
2463 | if (**oper == '-') | |
2464 | { | |
2465 | *oper += 1; | |
2466 | reg2 = csky_get_reg_val (*oper, &len); | |
2467 | if (reg2 == -1) | |
2468 | { | |
2469 | SET_ERROR_NUMBER (ERROR_REG_LIST, NULL); | |
2470 | return FALSE; | |
2471 | } | |
2472 | *oper += len; | |
2473 | if (reg1 > reg2) | |
2474 | { | |
2475 | SET_ERROR_NUMBER (ERROR_REG_LIST, NULL); | |
2476 | return FALSE; | |
2477 | } | |
2478 | while (reg2 >= reg1) | |
2479 | { | |
2480 | flag |= (1 << reg2); | |
2481 | reg2--; | |
2482 | } | |
2483 | } | |
2484 | if (**oper == ',') | |
2485 | *oper += 1; | |
2486 | } | |
2487 | /* The reglist: r4-r11, r15, r16-r17, r28. */ | |
2488 | #define REGLIST_BITS 0x10038ff0 | |
2489 | if (flag & ~(REGLIST_BITS)) | |
2490 | { | |
2491 | SET_ERROR_NUMBER (ERROR_REG_LIST, NULL); | |
2492 | return FALSE; | |
2493 | } | |
2494 | /* Check r4-r11. */ | |
2495 | int i = 4; | |
2496 | while (i <= 11) | |
2497 | { | |
2498 | if (flag & (1 << i)) | |
2499 | temp = i - 4 + 1; | |
2500 | i++; | |
2501 | } | |
2502 | list |= temp; | |
2503 | ||
2504 | /* Check r15. */ | |
2505 | if (flag & (1 << 15)) | |
2506 | list |= (1 << 4); | |
2507 | ||
2508 | /* Check r16-r17. */ | |
2509 | i = 16; | |
2510 | temp = 0; | |
2511 | while (i <= 17) | |
2512 | { | |
2513 | if (flag & (1 << i)) | |
2514 | temp = i - 16 + 1; | |
2515 | i++; | |
2516 | } | |
2517 | list |= (temp << 5); | |
2518 | ||
2519 | /* Check r28. */ | |
2520 | if (flag & (1 << 28)) | |
2521 | list |= (1 << 8); | |
2522 | if (oprnd->mask == OPRND_MASK_0_4 && (list & ~OPRND_MASK_0_4)) | |
2523 | { | |
2524 | SET_ERROR_NUMBER (ERROR_REG_LIST, NULL); | |
2525 | return FALSE; | |
2526 | } | |
2527 | csky_insn.val[csky_insn.idx++] = list; | |
2528 | return TRUE; | |
2529 | } | |
2530 | ||
2531 | static bfd_boolean | |
2532 | is_reg_lshift_illegal (char **oper, int is_float) | |
2533 | { | |
2534 | int value; | |
2535 | int len; | |
2536 | int reg; | |
2537 | reg = csky_get_reg_val (*oper, &len); | |
2538 | if (reg == -1) | |
2539 | { | |
2540 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, "The register must be r0-r31."); | |
2541 | return FALSE; | |
2542 | } | |
2543 | ||
2544 | *oper += len; | |
2545 | if ((*oper)[0] != '<' || (*oper)[1] != '<') | |
2546 | { | |
2547 | SET_ERROR_NUMBER (ERROR_UNDEFINE, | |
2548 | "Operand format error; should be (rx, ry << n)"); | |
2549 | return FALSE; | |
2550 | } | |
2551 | *oper += 2; | |
2552 | ||
2553 | expressionS e; | |
2554 | char *new_oper = parse_exp (*oper, &e); | |
2555 | if (e.X_op == O_constant) | |
2556 | { | |
2557 | *oper = new_oper; | |
2558 | /* The immediate must be in [0, 3]. */ | |
2559 | if (e.X_add_number < 0 || e.X_add_number > 3) | |
2560 | { | |
2561 | SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL); | |
2562 | return FALSE; | |
2563 | } | |
2564 | } | |
2565 | else | |
2566 | { | |
2567 | SET_ERROR_NUMBER (ERROR_EXP_CONSTANT, NULL); | |
2568 | return FALSE; | |
2569 | } | |
2570 | if (is_float) | |
2571 | value = (reg << 2) | e.X_add_number; | |
2572 | else | |
2573 | value = (reg << 5) | (1 << e.X_add_number); | |
2574 | csky_insn.val[csky_insn.idx++] = value; | |
2575 | ||
2576 | return TRUE; | |
2577 | } | |
2578 | ||
2579 | static bfd_boolean | |
2580 | is_imm_over_range (char **oper, int min, int max, int ext) | |
2581 | { | |
2582 | expressionS e; | |
2583 | bfd_boolean ret = FALSE; | |
2584 | char *new_oper = parse_exp (*oper, &e); | |
2585 | if (e.X_op == O_constant) | |
2586 | { | |
2587 | ret = TRUE; | |
2588 | *oper = new_oper; | |
2589 | if ((int)e.X_add_number != ext | |
2590 | && (e.X_add_number < min || e.X_add_number > max)) | |
2591 | { | |
2592 | ret = FALSE; | |
2593 | SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL); | |
2594 | } | |
2595 | csky_insn.val[csky_insn.idx++] = e.X_add_number; | |
2596 | } | |
2597 | ||
2598 | return ret; | |
2599 | } | |
2600 | ||
2601 | static bfd_boolean | |
2602 | is_oimm_over_range (char **oper, int min, int max) | |
2603 | { | |
2604 | expressionS e; | |
2605 | bfd_boolean ret = FALSE; | |
2606 | char *new_oper = parse_exp (*oper, &e); | |
2607 | if (e.X_op == O_constant) | |
2608 | { | |
2609 | ret = TRUE; | |
2610 | *oper = new_oper; | |
2611 | if (e.X_add_number < min || e.X_add_number > max) | |
2612 | { | |
2613 | ret = FALSE; | |
2614 | SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL); | |
2615 | } | |
2616 | csky_insn.val[csky_insn.idx++] = e.X_add_number - 1; | |
2617 | } | |
2618 | ||
2619 | return ret; | |
2620 | } | |
2621 | ||
2622 | static bfd_boolean | |
2623 | is_psr_bit (char **oper) | |
2624 | { | |
2625 | const struct psrbit *bits; | |
2626 | int i = 0; | |
2627 | ||
2628 | if (IS_CSKY_V1 (mach_flag)) | |
2629 | bits = cskyv1_psr_bits; | |
2630 | else | |
2631 | bits = cskyv2_psr_bits; | |
2632 | ||
2633 | while (bits[i].name != NULL) | |
2634 | { | |
2635 | if (bits[i].isa && !(bits[i].isa & isa_flag)) | |
2636 | { | |
2637 | i++; | |
2638 | continue; | |
2639 | } | |
2640 | if (strncasecmp (*oper, bits[i].name, strlen (bits[i].name)) == 0) | |
2641 | { | |
2642 | *oper += strlen (bits[i].name); | |
2643 | csky_insn.val[csky_insn.idx] |= bits[i].value; | |
2644 | return TRUE; | |
2645 | } | |
2646 | i++; | |
2647 | } | |
2648 | SET_ERROR_NUMBER (ERROR_OPCODE_PSRBIT, NULL); | |
2649 | return FALSE; | |
2650 | } | |
2651 | ||
2652 | static bfd_boolean | |
2653 | parse_type_cpidx (char** oper) | |
2654 | { | |
2655 | char *s = *oper; | |
2656 | int idx; | |
2657 | if (s[0] == 'c' && s[1] == 'p') | |
2658 | { | |
2659 | if (ISDIGIT (s[2]) && ISDIGIT (s[3]) && ! ISDIGIT (s[4])) | |
2660 | { | |
2661 | idx = (s[2] - '0') * 10 + s[3] - '0'; | |
2662 | *oper += 4; | |
2663 | } | |
2664 | else if (ISDIGIT (s[2]) && !ISDIGIT (s[3])) | |
2665 | { | |
2666 | idx = s[2] - '0'; | |
2667 | *oper += 3; | |
2668 | } | |
2669 | else | |
2670 | return FALSE; | |
2671 | } | |
2672 | else | |
2673 | { | |
2674 | expressionS e; | |
2675 | *oper = parse_exp (*oper, &e); | |
2676 | if (e.X_op != O_constant) | |
2677 | { | |
2678 | /* Can not recognize the operand. */ | |
2679 | return FALSE; | |
2680 | } | |
2681 | idx = e.X_add_number; | |
2682 | } | |
2683 | ||
2684 | csky_insn.val[csky_insn.idx++] = idx; | |
2685 | ||
2686 | return TRUE; | |
2687 | } | |
2688 | ||
2689 | static bfd_boolean | |
2690 | parse_type_cpreg (char** oper) | |
2691 | { | |
2692 | const char **regs = csky_cp_reg; | |
2693 | int i; | |
2694 | int len; | |
2695 | ||
2696 | for (i = 0; i < (int)(sizeof (csky_cp_reg) / sizeof (char *)); i++) | |
2697 | { | |
2698 | len = strlen (regs[i]); | |
2699 | if (memcmp (*oper, regs[i], len) == 0 && !ISDIGIT (*(*oper + len))) | |
2700 | { | |
2701 | *oper += len; | |
2702 | csky_insn.val[csky_insn.idx++] = i; | |
2703 | return TRUE; | |
2704 | } | |
2705 | } | |
2706 | SET_ERROR_NUMBER (ERROR_CPREG_ILLEGAL, *oper); | |
2707 | return FALSE; | |
2708 | } | |
2709 | ||
2710 | static bfd_boolean | |
2711 | parse_type_cpcreg (char** oper) | |
2712 | { | |
2713 | const char **regs; | |
2714 | int i; | |
2715 | int len; | |
2716 | regs = csky_cp_creg; | |
2717 | for (i = 0; i < (int)(sizeof (csky_cp_creg) / sizeof (char *)); i++) | |
2718 | { | |
2719 | len = strlen (regs[i]); | |
2720 | if (memcmp (*oper, regs[i], len) == 0 && !ISDIGIT (*(*oper + len))) | |
2721 | { | |
2722 | *oper += len; | |
2723 | csky_insn.val[csky_insn.idx++] = i; | |
2724 | return TRUE; | |
2725 | } | |
2726 | } | |
2727 | SET_ERROR_NUMBER (ERROR_CPREG_ILLEGAL, *oper); | |
2728 | return FALSE; | |
2729 | } | |
2730 | ||
2731 | static bfd_boolean | |
2732 | parse_type_areg (char** oper) | |
2733 | { | |
2734 | int i = 0; | |
2735 | int len = 0; | |
2736 | i = csky_get_reg_val (*oper, &len); | |
2737 | if (i == -1) | |
2738 | { | |
2739 | SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL); | |
2740 | return FALSE; | |
2741 | } | |
2742 | *oper += len; | |
2743 | csky_insn.val[csky_insn.idx++] = i; | |
2744 | ||
2745 | return TRUE; | |
2746 | } | |
2747 | ||
2748 | static bfd_boolean | |
2749 | parse_type_freg (char** oper, int even) | |
2750 | { | |
2751 | int reg; | |
2752 | int len; | |
2753 | reg = csky_get_freg_val (*oper, &len); | |
2754 | if (reg == -1) | |
2755 | { | |
2756 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
2757 | "The fpu register format is not recognized."); | |
2758 | return FALSE; | |
2759 | } | |
2760 | *oper += len; | |
2761 | csky_insn.opcode_end = *oper; | |
2762 | if (even && reg & 0x1) | |
2763 | { | |
2764 | SET_ERROR_NUMBER (ERROR_EXP_EVEN_FREG, NULL); | |
2765 | return FALSE; | |
2766 | } | |
2767 | csky_insn.val[csky_insn.idx++] = reg; | |
2768 | return TRUE; | |
2769 | } | |
2770 | ||
2771 | static bfd_boolean | |
2772 | parse_ldst_imm (char **oper, struct csky_opcode_info *op ATTRIBUTE_UNUSED, | |
2773 | struct operand *oprnd) | |
2774 | { | |
2775 | unsigned int mask = oprnd->mask; | |
2776 | int max = 1; | |
2777 | int shift = 0; | |
2778 | ||
2779 | shift = oprnd->shift; | |
2780 | ||
2781 | while (mask) | |
2782 | { | |
2783 | if (mask & 1) | |
2784 | max <<= 1; | |
2785 | mask >>= 1; | |
2786 | } | |
2787 | max = max << shift; | |
2788 | ||
2789 | if (**oper == '\0' || **oper == ')') | |
2790 | { | |
2791 | csky_insn.val[csky_insn.idx++] = 0; | |
2792 | return TRUE; | |
2793 | } | |
2794 | ||
2795 | expressionS e; | |
2796 | *oper = parse_exp (*oper, &e); | |
2797 | if (e.X_op != O_constant) | |
2798 | /* Not a constant. */ | |
2799 | return FALSE; | |
2800 | else if (e.X_add_number < 0 || e.X_add_number >= max) | |
2801 | { | |
2802 | /* Out of range. */ | |
2803 | SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL); | |
2804 | return FALSE; | |
2805 | } | |
2806 | if ((e.X_add_number % (1 << shift)) != 0) | |
2807 | { | |
2808 | /* Not aligned. */ | |
2809 | SET_ERROR_NUMBER (ERROR_OFFSET_UNALIGNED, ((unsigned long)1 << shift)); | |
2810 | return FALSE; | |
2811 | } | |
2812 | ||
2813 | csky_insn.val[csky_insn.idx++] = e.X_add_number >> shift; | |
2814 | ||
2815 | return TRUE; | |
2816 | ||
2817 | } | |
2818 | ||
2819 | static unsigned int | |
2820 | csky_count_operands (char *str) | |
2821 | { | |
2822 | char *oper_end = str; | |
2823 | unsigned int oprnd_num; | |
2824 | int bracket_cnt = 0; | |
2825 | ||
2826 | if (is_end_of_line[(unsigned char) *oper_end]) | |
2827 | oprnd_num = 0; | |
2828 | else | |
2829 | oprnd_num = 1; | |
2830 | ||
2831 | /* Count how many operands. */ | |
2832 | if (oprnd_num) | |
2833 | while (!is_end_of_line[(unsigned char) *oper_end]) | |
2834 | { | |
2835 | if (*oper_end == '(' || *oper_end == '<') | |
2836 | { | |
2837 | bracket_cnt++; | |
2838 | oper_end++; | |
2839 | continue; | |
2840 | } | |
2841 | if (*oper_end == ')' || *oper_end == '>') | |
2842 | { | |
2843 | bracket_cnt--; | |
2844 | oper_end++; | |
2845 | continue; | |
2846 | } | |
2847 | if (!bracket_cnt && *oper_end == ',') | |
2848 | oprnd_num++; | |
2849 | oper_end++; | |
2850 | } | |
2851 | return oprnd_num; | |
2852 | } | |
2853 | ||
2854 | /* End of the operand parsing helper functions. */ | |
2855 | ||
2856 | /* Parse the opcode part of an instruction. Fill in the csky_insn | |
2857 | state and return true on success, false otherwise. */ | |
2858 | ||
2859 | static bfd_boolean | |
2860 | parse_opcode (char *str) | |
2861 | { | |
2862 | #define IS_OPCODE32F(a) (*(a - 2) == '3' && *(a - 1) == '2') | |
2863 | #define IS_OPCODE16F(a) (*(a - 2) == '1' && *(a - 1) == '6') | |
2864 | ||
2865 | /* TRUE if this opcode has a suffix, like 'lrw.h'. */ | |
2866 | unsigned int has_suffix = FALSE; | |
2867 | unsigned int nlen = 0; | |
2868 | char *opcode_end; | |
2869 | char name[OPCODE_MAX_LEN + 1]; | |
2870 | char macro_name[OPCODE_MAX_LEN + 1]; | |
2871 | ||
2872 | /* Remove space ahead of string. */ | |
2873 | while (ISSPACE (*str)) | |
2874 | str++; | |
2875 | opcode_end = str; | |
2876 | ||
2877 | /* Find the opcode end. */ | |
2878 | while (nlen < OPCODE_MAX_LEN | |
2879 | && !is_end_of_line [(unsigned char) *opcode_end] | |
2880 | && *opcode_end != ' ') | |
2881 | { | |
2882 | /* Is csky force 32 or 16 instruction? */ | |
2883 | if (IS_CSKY_V2 (mach_flag) | |
2884 | && *opcode_end == '.' && has_suffix == FALSE) | |
2885 | { | |
2886 | has_suffix = TRUE; | |
2887 | if (IS_OPCODE32F (opcode_end)) | |
2888 | { | |
2889 | csky_insn.flag_force = INSN_OPCODE32F; | |
2890 | nlen -= 2; | |
2891 | } | |
2892 | else if (IS_OPCODE16F (opcode_end)) | |
2893 | { | |
2894 | csky_insn.flag_force = INSN_OPCODE16F; | |
2895 | nlen -= 2; | |
2896 | } | |
2897 | } | |
2898 | name[nlen] = *opcode_end; | |
2899 | nlen++; | |
2900 | opcode_end++; | |
2901 | } | |
2902 | ||
2903 | /* Is csky force 32 or 16 instruction? */ | |
2904 | if (has_suffix == FALSE) | |
2905 | { | |
2906 | if (IS_CSKY_V2 (mach_flag) && IS_OPCODE32F (opcode_end)) | |
2907 | { | |
2908 | csky_insn.flag_force = INSN_OPCODE32F; | |
2909 | nlen -= 2; | |
2910 | } | |
2911 | else if (IS_OPCODE16F (opcode_end)) | |
2912 | { | |
2913 | csky_insn.flag_force = INSN_OPCODE16F; | |
2914 | nlen -= 2; | |
2915 | } | |
2916 | } | |
2917 | name[nlen] = '\0'; | |
2918 | ||
2919 | /* Generate macro_name for finding hash in macro hash_table. */ | |
2920 | if (has_suffix == TRUE) | |
2921 | nlen += 2; | |
2922 | strncpy (macro_name, str, nlen); | |
2923 | macro_name[nlen] = '\0'; | |
2924 | ||
2925 | /* Get csky_insn.opcode_end. */ | |
2926 | while (ISSPACE (*opcode_end)) | |
2927 | opcode_end++; | |
2928 | csky_insn.opcode_end = opcode_end; | |
2929 | ||
2930 | /* Count the operands. */ | |
2931 | csky_insn.number = csky_count_operands (opcode_end); | |
2932 | ||
2933 | /* Find hash by name in csky_macros_hash and csky_opcodes_hash. */ | |
2934 | csky_insn.macro = (struct csky_macro_info *) hash_find (csky_macros_hash, | |
2935 | macro_name); | |
2936 | csky_insn.opcode = (struct csky_opcode *) hash_find (csky_opcodes_hash, | |
2937 | name); | |
2938 | ||
2939 | if (csky_insn.macro == NULL && csky_insn.opcode == NULL) | |
2940 | return FALSE; | |
2941 | return TRUE; | |
2942 | } | |
2943 | ||
2944 | /* Main dispatch routine to parse operand OPRND for opcode OP from string | |
2945 | *OPER. */ | |
2946 | ||
2947 | static bfd_boolean | |
2948 | get_operand_value (struct csky_opcode_info *op, | |
2949 | char **oper, struct operand *oprnd) | |
2950 | { | |
2951 | struct soperand *soprnd = NULL; | |
2952 | if (oprnd->mask == HAS_SUB_OPERAND) | |
2953 | { | |
2954 | /* It has sub operand, it must be like: | |
2955 | (oprnd1, oprnd2) | |
2956 | or | |
2957 | <oprnd1, oprnd2> | |
2958 | We will check the format here. */ | |
2959 | soprnd = (struct soperand *) oprnd; | |
2960 | char lc = 0; | |
2961 | char rc = 0; | |
2962 | char *s = *oper; | |
2963 | int bracket_cnt = 0; | |
2964 | if (oprnd->type == OPRND_TYPE_BRACKET) | |
2965 | { | |
2966 | lc = '('; | |
2967 | rc = ')'; | |
2968 | } | |
2969 | else if (oprnd->type == OPRND_TYPE_ABRACKET) | |
2970 | { | |
2971 | lc = '<'; | |
2972 | rc = '>'; | |
2973 | } | |
2974 | ||
2975 | if (**oper == lc) | |
2976 | { | |
2977 | *oper += 1; | |
2978 | s += 1; | |
2979 | } | |
2980 | else | |
2981 | { | |
2982 | SET_ERROR_NUMBER ((oprnd->type == OPRND_TYPE_BRACKET | |
2983 | ? ERROR_MISSING_LBRACKET | |
2984 | : ERROR_MISSING_LANGLE_BRACKETS), NULL); | |
2985 | return FALSE; | |
2986 | } | |
2987 | ||
2988 | /* If the oprnd2 is an immediate, it can not be parsed | |
2989 | that end with ')'/'>'. Modify ')'/'>' to '\0'. */ | |
2990 | while ((*s != rc || bracket_cnt != 0) && (*s != '\n' && *s != '\0')) | |
2991 | { | |
2992 | if (*s == lc) | |
2993 | bracket_cnt++; | |
2994 | else if (*s == rc) | |
2995 | bracket_cnt--; | |
2996 | s++; | |
2997 | } | |
2998 | ||
2999 | if (*s == rc) | |
3000 | *s = '\0'; | |
3001 | else | |
3002 | { | |
3003 | SET_ERROR_NUMBER ((oprnd->type == OPRND_TYPE_BRACKET | |
3004 | ? ERROR_MISSING_RBRACKET | |
3005 | : ERROR_MISSING_RANGLE_BRACKETS), NULL); | |
3006 | return FALSE; | |
3007 | } | |
3008 | ||
3009 | if (get_operand_value (op, oper, &soprnd->subs[0]) == FALSE) | |
3010 | { | |
3011 | *s = rc; | |
3012 | return FALSE; | |
3013 | } | |
3014 | if (**oper == ',') | |
3015 | *oper += 1; | |
3016 | if (get_operand_value (op, oper, &soprnd->subs[1]) == FALSE) | |
3017 | { | |
3018 | *s = rc; | |
3019 | return FALSE; | |
3020 | } | |
3021 | ||
3022 | *s = rc; | |
3023 | *oper += 1; | |
3024 | return TRUE; | |
3025 | } | |
3026 | ||
3027 | switch (oprnd->type) | |
3028 | { | |
3029 | /* TODO: add opcode type here, log errors in the function. | |
3030 | If REGLIST, then j = csky_insn.number - 1. | |
3031 | If there is needed to parse expressions, it will be | |
3032 | handled here. */ | |
3033 | case OPRND_TYPE_CTRLREG: | |
3034 | /* some parse. */ | |
3035 | return parse_type_ctrlreg (oper); | |
3036 | case OPRND_TYPE_AREG: | |
3037 | return parse_type_areg (oper); | |
3038 | case OPRND_TYPE_FREG: | |
3039 | case OPRND_TYPE_VREG: | |
3040 | return parse_type_freg (oper, 0); | |
3041 | case OPRND_TYPE_FEREG: | |
3042 | return parse_type_freg (oper, 1); | |
3043 | case OPRND_TYPE_CPCREG: | |
3044 | return parse_type_cpcreg (oper); | |
3045 | case OPRND_TYPE_CPREG: | |
3046 | return parse_type_cpreg (oper); | |
3047 | case OPRND_TYPE_CPIDX: | |
3048 | return parse_type_cpidx (oper); | |
3049 | case OPRND_TYPE_GREG0_7: | |
3050 | case OPRND_TYPE_GREG0_15: | |
3051 | { | |
3052 | int len; | |
3053 | long reg; | |
3054 | reg = csky_get_reg_val (*oper, &len); | |
3055 | ||
3056 | if (reg == -1) | |
3057 | { | |
3058 | SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL); | |
3059 | return FALSE; | |
3060 | } | |
3061 | else if ((oprnd->type == OPRND_TYPE_GREG0_7 && reg > 7) | |
3062 | || (oprnd->type == OPRND_TYPE_GREG0_15 && reg > 15)) | |
3063 | { | |
3064 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg); | |
3065 | return FALSE; | |
3066 | } | |
3067 | *oper += len; | |
3068 | csky_insn.val[csky_insn.idx++] = reg; | |
3069 | return TRUE; | |
3070 | } | |
3071 | case OPRND_TYPE_REGnsplr: | |
3072 | { | |
3073 | int len; | |
3074 | long reg; | |
3075 | reg = csky_get_reg_val (*oper, &len); | |
3076 | ||
3077 | if (reg == -1 | |
3078 | || (IS_CSKY_V1 (mach_flag) | |
3079 | && (reg == V1_REG_SP || reg == V1_REG_LR))) | |
3080 | { | |
3081 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg); | |
3082 | return FALSE; | |
3083 | } | |
3084 | csky_insn.val[csky_insn.idx++] = reg; | |
3085 | *oper += len; | |
3086 | return TRUE;; | |
3087 | } | |
3088 | case OPRND_TYPE_REGnr4_r7: | |
3089 | { | |
3090 | int len; | |
3091 | int reg; | |
3092 | if (**oper == '(') | |
3093 | *oper += 1; | |
3094 | reg = csky_get_reg_val (*oper, &len); | |
3095 | if (reg == -1 || (reg <= 7 && reg >= 4)) | |
3096 | return FALSE; | |
3097 | ||
3098 | csky_insn.val[csky_insn.idx++] = reg; | |
3099 | *oper += len; | |
3100 | ||
3101 | if (**oper == ')') | |
3102 | *oper += 1; | |
3103 | return TRUE;; | |
3104 | } | |
3105 | case OPRND_TYPE_REGr4_r7: | |
3106 | if (memcmp (*oper, "r4-r7", sizeof ("r4-r7") - 1) == 0) | |
3107 | { | |
3108 | *oper += sizeof ("r4-r7") - 1; | |
3109 | csky_insn.val[csky_insn.idx++] = 0; | |
3110 | return TRUE; | |
3111 | } | |
3112 | SET_ERROR_NUMBER (ERROR_OPCODE_ILLEGAL, NULL); | |
3113 | return FALSE; | |
3114 | case OPRND_TYPE_IMM_LDST: | |
3115 | return parse_ldst_imm (oper, op, oprnd); | |
3116 | case OPRND_TYPE_IMM_FLDST: | |
3117 | return parse_ldst_imm (oper, op, oprnd); | |
3118 | case OPRND_TYPE_IMM1b: | |
3119 | return is_imm_over_range (oper, 0, 1, -1); | |
3120 | case OPRND_TYPE_IMM2b: | |
3121 | return is_imm_over_range (oper, 0, 3, -1); | |
3122 | case OPRND_TYPE_IMM2b_JMPIX: | |
3123 | /* ck802j support jmpix16, but not support jmpix32. */ | |
3124 | if (IS_CSKY_ARCH_802 (mach_flag) | |
3125 | && (op->opcode & 0xffff0000) != 0) | |
3126 | { | |
3127 | SET_ERROR_NUMBER (ERROR_OPCODE_ILLEGAL, NULL); | |
3128 | return FALSE; | |
3129 | } | |
3130 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3131 | if (csky_insn.e1.X_op == O_constant) | |
3132 | { | |
3133 | csky_insn.opcode_end = *oper; | |
3134 | if (csky_insn.e1.X_add_number & 0x7) | |
3135 | { | |
3136 | SET_ERROR_NUMBER (ERROR_JMPIX_OVER_RANGE, NULL); | |
3137 | return FALSE; | |
3138 | } | |
3139 | csky_insn.val[csky_insn.idx++] | |
3140 | = (csky_insn.e1.X_add_number >> 3) - 2; | |
3141 | } | |
3142 | return TRUE; | |
3143 | case OPRND_TYPE_IMM4b: | |
3144 | return is_imm_over_range (oper, 0, 15, -1); | |
3145 | break; | |
3146 | case OPRND_TYPE_IMM5b: | |
3147 | return is_imm_over_range (oper, 0, 31, -1); | |
3148 | /* This type for "bgeni" in csky v1 ISA. */ | |
3149 | case OPRND_TYPE_IMM5b_7_31: | |
3150 | if (is_imm_over_range (oper, 0, 31, -1)) | |
3151 | { | |
3152 | int val = csky_insn.val[csky_insn.idx - 1]; | |
3153 | /* immediate values of 0 -> 6 translate to movi. */ | |
3154 | if (val <= 6) | |
3155 | { | |
3156 | const char *name = "movi"; | |
3157 | csky_insn.opcode = (struct csky_opcode *) | |
3158 | hash_find (csky_opcodes_hash, name); | |
3159 | csky_insn.val[csky_insn.idx - 1] = 1 << val; | |
3160 | } | |
3161 | return TRUE; | |
3162 | } | |
3163 | else | |
3164 | return FALSE; | |
3165 | ||
3166 | case OPRND_TYPE_IMM5b_1_31: | |
3167 | return is_imm_over_range (oper, 1, 31, -1); | |
3168 | case OPRND_TYPE_IMM5b_POWER: | |
3169 | if (is_imm_over_range (oper, 1, ~(1 << 31), 1 << 31)) | |
3170 | { | |
3171 | int log; | |
3172 | int val = csky_insn.val[csky_insn.idx - 1]; | |
3173 | log = csky_log_2 (val); | |
3174 | csky_insn.val[csky_insn.idx - 1] = log; | |
3175 | return (log == -1 ? FALSE : TRUE); | |
3176 | } | |
3177 | else | |
3178 | return FALSE; | |
3179 | ||
3180 | /* This type for "mgeni" in csky v1 ISA. */ | |
3181 | case OPRND_TYPE_IMM5b_7_31_POWER: | |
3182 | if (is_imm_over_range (oper, 1, ~(1 << 31), 1 << 31)) | |
3183 | { | |
3184 | int log; | |
3185 | int val = csky_insn.val[csky_insn.idx - 1]; | |
3186 | log = csky_log_2 (val); | |
3187 | /* Immediate values of 0 -> 6 translate to movi. */ | |
3188 | if (log <= 6) | |
3189 | { | |
3190 | const char *name = "movi"; | |
3191 | csky_insn.opcode = (struct csky_opcode *) | |
3192 | hash_find (csky_opcodes_hash, name); | |
3193 | as_warn (_("translating mgeni to movi")); | |
3194 | } | |
3195 | else | |
3196 | csky_insn.val[csky_insn.idx - 1] = log; | |
3197 | return (log == -1 ? FALSE : TRUE); | |
3198 | } | |
3199 | else | |
3200 | return FALSE; | |
3201 | ||
3202 | case OPRND_TYPE_IMM5b_RORI: | |
3203 | { | |
3204 | unsigned max_shift = IS_CSKY_V1 (mach_flag) ? 31 : 32; | |
3205 | ||
3206 | if (is_imm_over_range (oper, 1, max_shift, -1)) | |
3207 | { | |
3208 | int i = csky_insn.idx - 1; | |
3209 | csky_insn.val[i] = 32 - csky_insn.val[i]; | |
3210 | return TRUE; | |
3211 | } | |
3212 | else | |
3213 | return FALSE; | |
3214 | } | |
3215 | ||
3216 | case OPRND_TYPE_IMM5b_BMASKI: | |
3217 | /* For csky v1 bmask inst. */ | |
3218 | ||
3219 | if (!is_imm_over_range (oper, 8, 31, 0)) | |
3220 | { | |
3221 | unsigned int mask_val = csky_insn.val[csky_insn.idx - 1]; | |
3222 | if (mask_val > 0 && mask_val < 8) | |
3223 | { | |
3224 | const char *op_movi = "movi"; | |
3225 | csky_insn.opcode = (struct csky_opcode *) | |
3226 | hash_find (csky_opcodes_hash, op_movi); | |
3227 | if (csky_insn.opcode == NULL) | |
3228 | return FALSE; | |
3229 | csky_insn.val[csky_insn.idx - 1] = (1 << mask_val) - 1; | |
3230 | return TRUE; | |
3231 | } | |
3232 | } | |
3233 | return TRUE; | |
3234 | ||
3235 | case OPRND_TYPE_IMM8b_BMASKI: | |
3236 | /* For csky v2 bmask, which will transfer to 16bits movi. */ | |
3237 | if (is_imm_over_range (oper, 1, 8, -1)) | |
3238 | { | |
3239 | unsigned int mask_val = csky_insn.val[csky_insn.idx - 1]; | |
3240 | csky_insn.val[csky_insn.idx - 1] = (1 << mask_val) - 1; | |
3241 | return TRUE; | |
3242 | } | |
3243 | return FALSE; | |
3244 | case OPRND_TYPE_OIMM4b: | |
3245 | return is_oimm_over_range (oper, 1, 16); | |
3246 | case OPRND_TYPE_OIMM5b: | |
3247 | return is_oimm_over_range (oper, 1, 32); | |
3248 | case OPRND_TYPE_OIMM5b_IDLY: | |
3249 | if (is_imm_over_range (oper, 0, 32, -1)) | |
3250 | { | |
3251 | /* imm5b for idly n: 0<=n<4, imm5b=3; 4<=n<=32, imm5b=n-1. */ | |
3252 | unsigned long imm = csky_insn.val[csky_insn.idx - 1]; | |
3253 | if (imm < 4) | |
3254 | { | |
3255 | csky_show_error (WARNING_IDLY, 0, (void *)imm, NULL); | |
3256 | imm = 3; | |
3257 | } | |
3258 | else imm--; | |
3259 | csky_insn.val[csky_insn.idx - 1] = imm; | |
3260 | return TRUE; | |
3261 | } | |
3262 | else | |
3263 | return FALSE; | |
3264 | ||
3265 | /* For csky v2 bmask inst. */ | |
3266 | case OPRND_TYPE_OIMM5b_BMASKI: | |
3267 | if (!is_oimm_over_range (oper, 17, 32)) | |
3268 | { | |
3269 | int mask_val = csky_insn.val[csky_insn.idx - 1]; | |
3270 | if (mask_val + 1 == 0) | |
3271 | return TRUE; | |
3272 | if (mask_val > 0 && mask_val < 16) | |
3273 | { | |
3274 | const char *op_movi = "movi"; | |
3275 | csky_insn.opcode = (struct csky_opcode *) | |
3276 | hash_find (csky_opcodes_hash, op_movi); | |
3277 | if (csky_insn.opcode == NULL) | |
3278 | return FALSE; | |
3279 | csky_insn.val[csky_insn.idx - 1] = (1 << (mask_val + 1)) - 1; | |
3280 | return TRUE; | |
3281 | } | |
3282 | } | |
3283 | return TRUE; | |
3284 | case OPRND_TYPE_IMM7b: | |
3285 | return is_imm_over_range (oper, 0, 127, -1); | |
3286 | case OPRND_TYPE_IMM8b: | |
3287 | return is_imm_over_range (oper, 0, 255, -1); | |
3288 | case OPRND_TYPE_IMM12b: | |
3289 | return is_imm_over_range (oper, 0, 4095, -1); | |
3290 | case OPRND_TYPE_IMM15b: | |
3291 | return is_imm_over_range (oper, 0, 0xfffff, -1); | |
3292 | case OPRND_TYPE_IMM16b: | |
3293 | return is_imm_over_range (oper, 0, 65535, -1); | |
3294 | case OPRND_TYPE_OIMM16b: | |
3295 | return is_oimm_over_range (oper, 1, 65536); | |
3296 | case OPRND_TYPE_IMM32b: | |
3297 | { | |
3298 | expressionS e; | |
3299 | char *new_oper = parse_exp (*oper, &e); | |
3300 | if (e.X_op == O_constant) | |
3301 | { | |
3302 | *oper = new_oper; | |
3303 | csky_insn.val[csky_insn.idx++] = e.X_add_number; | |
3304 | return TRUE; | |
3305 | } | |
3306 | return FALSE; | |
3307 | } | |
3308 | case OPRND_TYPE_IMM16b_MOVIH: | |
3309 | case OPRND_TYPE_IMM16b_ORI: | |
3310 | { | |
3311 | bfd_reloc_code_real_type r = BFD_RELOC_NONE; | |
3312 | int len; | |
3313 | char *curr = *oper; | |
3314 | char * save = input_line_pointer; | |
3315 | /* get the reloc type, and set "@GOTxxx" as ' ' */ | |
3316 | while (**oper != '@' && **oper != '\0') | |
3317 | *oper += 1; | |
3318 | if (**oper != '\0') | |
3319 | { | |
3320 | input_line_pointer = *oper; | |
3321 | lex_got (&r, &len); | |
3322 | while (*(*oper + len + 1) != '\0') | |
3323 | { | |
3324 | **oper = *(*oper + len + 1); | |
3325 | *(*oper + len + 1) = '\0'; | |
3326 | *oper += 1; | |
3327 | } | |
3328 | **oper = '\0'; | |
3329 | } | |
3330 | input_line_pointer = save; | |
3331 | *oper = parse_exp (curr, &csky_insn.e1); | |
3332 | return TRUE; | |
3333 | } | |
3334 | case OPRND_TYPE_PSR_BITS_LIST: | |
3335 | { | |
3336 | int ret = TRUE; | |
3337 | if (csky_insn.number == 0) | |
3338 | ret = FALSE; | |
3339 | else | |
3340 | { | |
3341 | csky_insn.val[csky_insn.idx] = 0; | |
3342 | if (is_psr_bit (oper) != FALSE) | |
3343 | while (**oper == ',') | |
3344 | { | |
3345 | *oper += 1; | |
3346 | if (is_psr_bit (oper) == FALSE) | |
3347 | { | |
3348 | ret = FALSE; | |
3349 | break; | |
3350 | } | |
3351 | } | |
3352 | else | |
3353 | ret = FALSE; | |
3354 | if (ret == TRUE && IS_CSKY_V1 (mach_flag) | |
3355 | && csky_insn.val[csky_insn.idx] > 8) | |
3356 | ret = FALSE; | |
3357 | } | |
3358 | if (!ret) | |
3359 | SET_ERROR_NUMBER (ERROR_OPERANDS_ILLEGAL, csky_insn.opcode_end); | |
3360 | return ret; | |
3361 | } | |
3362 | case OPRND_TYPE_RM: | |
3363 | { | |
3364 | /* FPU round mode. */ | |
3365 | static const char *round_mode[] = | |
3366 | { | |
3367 | "rm_nearest", | |
3368 | "rm_zero", | |
3369 | "rm_posinf", | |
3370 | "rm_neginf", | |
3371 | NULL | |
3372 | }; | |
3373 | int i; | |
3374 | for (i = 0; round_mode[i]; i++) | |
3375 | if (strncasecmp (*oper, round_mode[i], strlen (round_mode[i])) == 0) | |
3376 | { | |
3377 | *oper += strlen (round_mode[i]); | |
3378 | csky_insn.val[csky_insn.idx++] = i; | |
3379 | return TRUE; | |
3380 | } | |
3381 | return FALSE; | |
3382 | } | |
3383 | ||
3384 | case OPRND_TYPE_REGLIST_COMMA: | |
3385 | case OPRND_TYPE_BRACKET: | |
3386 | /* TODO: using sub operand union. */ | |
3387 | case OPRND_TYPE_ABRACKET: | |
3388 | /* TODO: using sub operand union. */ | |
3389 | case OPRND_TYPE_REGLIST_DASH: | |
3390 | return is_reglist_legal (oper); | |
3391 | case OPRND_TYPE_FREGLIST_DASH: | |
3392 | return is_freglist_legal (oper); | |
3393 | case OPRND_TYPE_AREG_WITH_BRACKET: | |
3394 | { | |
3395 | int len; | |
3396 | int reg; | |
3397 | if (**oper != '(') | |
3398 | { | |
3399 | SET_ERROR_NUMBER (ERROR_MISSING_LBRACKET, NULL); | |
3400 | return FALSE; | |
3401 | } | |
3402 | *oper += 1; | |
3403 | reg = csky_get_reg_val (*oper, &len); | |
3404 | if (reg == -1) | |
3405 | { | |
3406 | SET_ERROR_NUMBER (ERROR_EXP_GREG, NULL); | |
3407 | return FALSE; | |
3408 | } | |
3409 | *oper += len; | |
3410 | if (**oper != ')') | |
3411 | { | |
3412 | SET_ERROR_NUMBER (ERROR_MISSING_RBRACKET, NULL); | |
3413 | return FALSE; | |
3414 | } | |
3415 | *oper += 1; | |
3416 | csky_insn.val[csky_insn.idx++] = reg; | |
3417 | return TRUE; | |
3418 | } | |
3419 | case OPRND_TYPE_REGsp: | |
3420 | return is_reg_sp (oper); | |
3421 | case OPRND_TYPE_REGbsp: | |
3422 | return is_reg_sp_with_bracket (oper); | |
3423 | /* For jmpi. */ | |
3424 | case OPRND_TYPE_OFF8b: | |
3425 | case OPRND_TYPE_OFF16b: | |
3426 | *oper = parse_rt (*oper, 1, &csky_insn.e1, -1); | |
3427 | csky_insn.val[csky_insn.idx++] = 0; | |
3428 | return TRUE; | |
3429 | case OPRND_TYPE_LABEL_WITH_BRACKET: | |
3430 | case OPRND_TYPE_CONSTANT: | |
3431 | case OPRND_TYPE_ELRW_CONSTANT: | |
3432 | if (**oper == '[') | |
3433 | csky_insn.val[csky_insn.idx++] = 0; | |
3434 | else | |
3435 | csky_insn.val[csky_insn.idx++] = NEED_OUTPUT_LITERAL; | |
3436 | *oper = parse_rt (*oper, 0, &csky_insn.e1, -1); | |
3437 | return TRUE; | |
3438 | case OPRND_TYPE_FCONSTANT: | |
3439 | *oper = parse_rtf (*oper, 0, &csky_insn.e1); | |
3440 | return TRUE; | |
3441 | ||
3442 | case OPRND_TYPE_SFLOAT: | |
3443 | case OPRND_TYPE_DFLOAT: | |
3444 | /* For fmovis and fmovid, which accept a constant float with | |
3445 | a limited range. */ | |
3446 | { | |
3447 | uint64_t dbnum; | |
3448 | int imm4, imm8; | |
3449 | ||
3450 | *oper = parse_fexp (*oper, &csky_insn.e1, 1, &dbnum); | |
3451 | if (csky_insn.e1.X_op == O_absent) | |
3452 | return FALSE; | |
3453 | ||
3454 | /* Convert the representation from IEEE double to the 13-bit | |
3455 | encoding used internally for fmovis and fmovid. */ | |
3456 | imm4 = 11 - (((dbnum & 0x7ff0000000000000ULL) >> 52) - 1023); | |
3457 | /* Check float range. */ | |
3458 | if ((dbnum & 0x00000fffffffffffULL) || imm4 < 0 || imm4 > 15) | |
3459 | { | |
3460 | csky_show_error (ERROR_IMM_OVERFLOW, 2, NULL, NULL); | |
3461 | return FALSE; | |
3462 | } | |
3463 | imm8 = (dbnum & 0x000ff00000000000ULL) >> 44; | |
3464 | csky_insn.e1.X_add_number | |
3465 | = (((imm8 & 0xf) << 4) | |
3466 | | ((imm8 & 0xf0) << 17) | |
3467 | | ((imm4 & 0xf) << 16) | |
3468 | | ((dbnum & 0x8000000000000000ULL) >> 43)); | |
3469 | return TRUE; | |
3470 | } | |
3471 | ||
3472 | /* For grs v2. */ | |
3473 | case OPRND_TYPE_IMM_OFF18b: | |
3474 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3475 | return TRUE; | |
3476 | ||
3477 | case OPRND_TYPE_BLOOP_OFF4b: | |
3478 | *oper = parse_exp (*oper, &csky_insn.e2); | |
3479 | if (csky_insn.e2.X_op == O_symbol) | |
3480 | { | |
3481 | csky_insn.opcode_end = *oper; | |
3482 | return TRUE; | |
3483 | } | |
3484 | else | |
3485 | return FALSE; | |
3486 | ||
3487 | case OPRND_TYPE_BLOOP_OFF12b: | |
3488 | case OPRND_TYPE_OFF10b: | |
3489 | case OPRND_TYPE_OFF11b: | |
3490 | case OPRND_TYPE_OFF16b_LSL1: | |
3491 | case OPRND_TYPE_OFF26b: | |
3492 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3493 | if (csky_insn.e1.X_op == O_symbol) | |
3494 | { | |
3495 | csky_insn.opcode_end = *oper; | |
3496 | return TRUE; | |
3497 | } | |
3498 | else | |
3499 | return FALSE; | |
3500 | /* For xtrb0(1)(2)(3) and div in csky v1 ISA. */ | |
3501 | case OPRND_TYPE_REG_r1a: | |
3502 | { | |
3503 | int reg = 0; | |
3504 | int len = 0; | |
3505 | reg = csky_get_reg_val (*oper, &len); | |
3506 | if (reg == -1) | |
3507 | { | |
3508 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
3509 | "The first operand must be register r1."); | |
3510 | return FALSE; | |
3511 | } | |
3512 | if (reg != 1) | |
3513 | mov_r1_after = TRUE; | |
3514 | *oper += len; | |
3515 | csky_insn.opcode_end = *oper; | |
3516 | csky_insn.val[csky_insn.idx++] = reg; | |
3517 | return TRUE; | |
3518 | } | |
3519 | case OPRND_TYPE_REG_r1b: | |
3520 | { | |
3521 | int reg = 0; | |
3522 | int len = 0; | |
3523 | reg = csky_get_reg_val (*oper, &len); | |
3524 | if (reg == -1) | |
3525 | { | |
3526 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
3527 | "The second operand must be register r1."); | |
3528 | return FALSE; | |
3529 | } | |
3530 | if (reg != 1) | |
3531 | { | |
3532 | unsigned int mov_insn = CSKYV1_INST_MOV_R1_RX; | |
3533 | mov_insn |= reg << 4; | |
3534 | mov_r1_before = TRUE; | |
3535 | csky_insn.output = frag_more (2); | |
3536 | dwarf2_emit_insn (0); | |
3537 | md_number_to_chars (csky_insn.output, mov_insn, 2); | |
3538 | } | |
3539 | *oper += len; | |
3540 | csky_insn.opcode_end = *oper; | |
3541 | csky_insn.val[csky_insn.idx++] = reg; | |
3542 | return TRUE; | |
3543 | } | |
3544 | case OPRND_TYPE_DUMMY_REG: | |
3545 | { | |
3546 | int reg = 0; | |
3547 | int len = 0; | |
3548 | reg = csky_get_reg_val (*oper, &len); | |
3549 | if (reg == -1) | |
3550 | { | |
3551 | SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL); | |
3552 | return FALSE; | |
3553 | } | |
3554 | if (reg != csky_insn.val[0]) | |
3555 | { | |
3556 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
3557 | "The second register must be the same as the first."); | |
3558 | return FALSE; | |
3559 | } | |
3560 | *oper += len; | |
3561 | csky_insn.opcode_end = *oper; | |
3562 | csky_insn.val[csky_insn.idx++] = reg; | |
3563 | return TRUE; | |
3564 | } | |
3565 | case OPRND_TYPE_2IN1_DUMMY: | |
3566 | { | |
3567 | int reg = 0; | |
3568 | int len = 0; | |
3569 | int max = 0; | |
3570 | int min = 0; | |
3571 | reg = csky_get_reg_val (*oper, &len); | |
3572 | if (reg == -1) | |
3573 | { | |
3574 | SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL); | |
3575 | return FALSE; | |
3576 | } | |
3577 | /* dummy reg's real type should be same with first operand. */ | |
3578 | if (op->oprnd.oprnds[0].type == OPRND_TYPE_GREG0_15) | |
3579 | max = 15; | |
3580 | else if (op->oprnd.oprnds[0].type == OPRND_TYPE_GREG0_7) | |
3581 | max = 7; | |
3582 | else | |
3583 | return FALSE; | |
3584 | if (reg < min || reg > max) | |
3585 | return FALSE; | |
3586 | csky_insn.val[csky_insn.idx++] = reg; | |
3587 | /* if it is the last operands. */ | |
3588 | if (csky_insn.idx > 2) | |
3589 | { | |
3590 | /* For "insn rz, rx, ry", if rx or ry is equal to rz, | |
3591 | we can output the insn like "insn rz, rx". */ | |
3592 | if (csky_insn.val[0] == csky_insn.val[1]) | |
3593 | csky_insn.val[1] = 0; | |
3594 | else if (csky_insn.val[0] == csky_insn.val[2]) | |
3595 | csky_insn.val[2] = 0; | |
3596 | else | |
3597 | return FALSE; | |
3598 | } | |
3599 | *oper += len; | |
3600 | csky_insn.opcode_end = *oper; | |
3601 | return TRUE; | |
3602 | } | |
3603 | case OPRND_TYPE_DUP_GREG0_7: | |
3604 | case OPRND_TYPE_DUP_GREG0_15: | |
3605 | case OPRND_TYPE_DUP_AREG: | |
3606 | { | |
3607 | long reg = 0; | |
3608 | int len = 0; | |
3609 | long max_reg; | |
3610 | unsigned int shift_num; | |
3611 | if (oprnd->type == OPRND_TYPE_DUP_GREG0_7) | |
3612 | { | |
3613 | max_reg = 7; | |
3614 | shift_num = 3; | |
3615 | } | |
3616 | else if (oprnd->type == OPRND_TYPE_DUP_GREG0_15) | |
3617 | { | |
3618 | max_reg = 15; | |
3619 | shift_num = 4; | |
3620 | } | |
3621 | else | |
3622 | { | |
3623 | max_reg = 31; | |
3624 | shift_num = 5; | |
3625 | } | |
3626 | reg = csky_get_reg_val (*oper, &len); | |
3627 | if (reg == -1) | |
3628 | { | |
3629 | if (max_reg == 31) | |
3630 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
3631 | "The register must be r0-r31"); | |
3632 | else | |
3633 | SET_ERROR_NUMBER (ERROR_REG_FORMAT, | |
3634 | "The register must be r0-r15"); | |
3635 | return FALSE; | |
3636 | } | |
3637 | if (reg > max_reg) | |
3638 | { | |
3639 | SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg); | |
3640 | return FALSE; | |
3641 | } | |
3642 | reg |= reg << shift_num; | |
3643 | *oper += len; | |
3644 | csky_insn.opcode_end = *oper; | |
3645 | csky_insn.val[csky_insn.idx++] = reg; | |
3646 | return TRUE; | |
3647 | } | |
3648 | case OPRND_TYPE_CONST1: | |
3649 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3650 | if (csky_insn.e1.X_op == O_constant) | |
3651 | { | |
3652 | csky_insn.opcode_end = *oper; | |
3653 | if (csky_insn.e1.X_add_number != 1) | |
3654 | return FALSE; | |
3655 | csky_insn.val[csky_insn.idx++] = 1; | |
3656 | return TRUE; | |
3657 | } | |
3658 | return FALSE; | |
3659 | case OPRND_TYPE_UNCOND10b: | |
3660 | case OPRND_TYPE_UNCOND16b: | |
3661 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3662 | if (csky_insn.e1.X_op == O_constant) | |
3663 | return FALSE; | |
3664 | input_line_pointer = *oper; | |
3665 | csky_insn.opcode_end = *oper; | |
3666 | csky_insn.relax.max = UNCD_DISP16_LEN; | |
3667 | csky_insn.relax.var = UNCD_DISP10_LEN; | |
3668 | csky_insn.relax.subtype = UNCD_DISP10; | |
3669 | csky_insn.val[csky_insn.idx++] = 0; | |
3670 | return TRUE; | |
3671 | case OPRND_TYPE_COND10b: | |
3672 | case OPRND_TYPE_COND16b: | |
3673 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3674 | if (csky_insn.e1.X_op == O_constant) | |
3675 | return FALSE; | |
3676 | input_line_pointer = *oper; | |
3677 | csky_insn.opcode_end = *oper; | |
3678 | /* CK801 doesn't have 32-bit bt/bf insns; relax to a short | |
3679 | jump around a 32-bit unconditional branch instead. */ | |
3680 | if (IS_CSKY_ARCH_801 (mach_flag)) | |
3681 | { | |
3682 | csky_insn.relax.max = SCOND_DISP16_LEN; | |
3683 | csky_insn.relax.var = SCOND_DISP10_LEN; | |
3684 | csky_insn.relax.subtype = SCOND_DISP10; | |
3685 | } | |
3686 | else | |
3687 | { | |
3688 | csky_insn.relax.max = COND_DISP16_LEN; | |
3689 | csky_insn.relax.var = COND_DISP10_LEN; | |
3690 | csky_insn.relax.subtype = COND_DISP10; | |
3691 | } | |
3692 | csky_insn.val[csky_insn.idx++] = 0; | |
3693 | return TRUE; | |
3694 | case OPRND_TYPE_JCOMPZ: | |
3695 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3696 | if (csky_insn.e1.X_op == O_constant) | |
3697 | return FALSE; | |
3698 | input_line_pointer = *oper; | |
3699 | csky_insn.opcode_end = *oper; | |
3700 | csky_insn.relax.max = JCOMPZ_DISP32_LEN; | |
3701 | csky_insn.relax.var = JCOMPZ_DISP16_LEN; | |
3702 | csky_insn.relax.subtype = JCOMPZ_DISP16; | |
3703 | csky_insn.max = JCOMPZ_DISP32_LEN; | |
3704 | csky_insn.val[csky_insn.idx++] = 0; | |
3705 | return TRUE; | |
3706 | case OPRND_TYPE_JBTF: | |
3707 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3708 | input_line_pointer = *oper; | |
3709 | csky_insn.opcode_end = *oper; | |
3710 | csky_insn.relax.max = csky_relax_table[C (COND_JUMP_S, DISP32)].rlx_length; | |
3711 | csky_insn.relax.var = csky_relax_table[C (COND_JUMP_S, DISP12)].rlx_length; | |
3712 | csky_insn.relax.subtype = C (COND_JUMP_S, 0); | |
3713 | csky_insn.val[csky_insn.idx++] = 0; | |
3714 | csky_insn.max = C32_LEN_S + 2; | |
3715 | return TRUE; | |
3716 | case OPRND_TYPE_JBR: | |
3717 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3718 | input_line_pointer = *oper; | |
3719 | csky_insn.opcode_end = *oper; | |
3720 | csky_insn.relax.max = csky_relax_table[C (UNCD_JUMP_S, DISP32)].rlx_length; | |
3721 | csky_insn.relax.var = csky_relax_table[C (UNCD_JUMP_S, DISP12)].rlx_length; | |
3722 | csky_insn.relax.subtype = C (UNCD_JUMP_S, 0); | |
3723 | csky_insn.val[csky_insn.idx++] = 0; | |
3724 | csky_insn.max = U32_LEN_S + 2; | |
3725 | return TRUE; | |
3726 | case OPRND_TYPE_JBSR: | |
3727 | if (do_force2bsr) | |
3728 | *oper = parse_exp (*oper, &csky_insn.e1); | |
3729 | else | |
3730 | *oper = parse_rt (*oper, 1, &csky_insn.e1, -1); | |
3731 | input_line_pointer = *oper; | |
3732 | csky_insn.opcode_end = *oper; | |
3733 | csky_insn.val[csky_insn.idx++] = 0; | |
3734 | return TRUE; | |
3735 | case OPRND_TYPE_REGLIST_DASH_COMMA: | |
3736 | return is_reglist_dash_comma_legal (oper, oprnd); | |
3737 | ||
3738 | case OPRND_TYPE_MSB2SIZE: | |
3739 | case OPRND_TYPE_LSB2SIZE: | |
3740 | { | |
3741 | expressionS e; | |
3742 | char *new_oper = parse_exp (*oper, &e); | |
3743 | if (e.X_op == O_constant) | |
3744 | { | |
3745 | *oper = new_oper; | |
3746 | if (e.X_add_number > 31) | |
3747 | { | |
3748 | SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL); | |
3749 | return FALSE; | |
3750 | } | |
3751 | csky_insn.val[csky_insn.idx++] = e.X_add_number; | |
3752 | if (oprnd->type == OPRND_TYPE_LSB2SIZE) | |
3753 | { | |
3754 | if (csky_insn.val[csky_insn.idx - 1] > csky_insn.val[csky_insn.idx - 2]) | |
3755 | { | |
3756 | SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL); | |
3757 | return FALSE; | |
3758 | } | |
3759 | csky_insn.val[csky_insn.idx - 2] -= e.X_add_number; | |
3760 | } | |
3761 | return TRUE; | |
3762 | } | |
3763 | return FALSE; | |
3764 | } | |
3765 | case OPRND_TYPE_AREG_WITH_LSHIFT: | |
3766 | return is_reg_lshift_illegal (oper, 0); | |
3767 | case OPRND_TYPE_AREG_WITH_LSHIFT_FPU: | |
3768 | return is_reg_lshift_illegal (oper, 1); | |
3769 | case OPRND_TYPE_FREG_WITH_INDEX: | |
3770 | if (parse_type_freg (oper, 0)) | |
3771 | { | |
3772 | if (**oper == '[') | |
3773 | { | |
3774 | (*oper)++; | |
3775 | if (is_imm_over_range (oper, 0, 0xf, -1)) | |
3776 | { | |
3777 | if (**oper == ']') | |
3778 | { | |
3779 | unsigned int idx = --csky_insn.idx; | |
3780 | unsigned int val = csky_insn.val[idx]; | |
3781 | (*oper)++; | |
3782 | csky_insn.val[idx - 1] |= val << 4; | |
3783 | return TRUE; | |
3784 | } | |
3785 | else | |
3786 | SET_ERROR_NUMBER (ERROR_MISSING_RSQUARE_BRACKETS, NULL); | |
3787 | } | |
3788 | } | |
3789 | else | |
3790 | SET_ERROR_NUMBER (ERROR_MISSING_LSQUARE_BRACKETS, NULL); | |
3791 | } | |
3792 | return FALSE; | |
3793 | ||
3794 | default: | |
3795 | break; | |
3796 | /* error code. */ | |
3797 | } | |
3798 | return FALSE; | |
3799 | } | |
3800 | ||
3801 | /* Subroutine of parse_operands. */ | |
3802 | ||
3803 | static bfd_boolean | |
3804 | parse_operands_op (char *str, struct csky_opcode_info *op) | |
3805 | { | |
3806 | int i; | |
3807 | int j; | |
3808 | char *oper = str; | |
3809 | int flag_pass; | |
3810 | ||
3811 | for (i = 0; i < OP_TABLE_NUM && op[i].operand_num != -2; i++) | |
3812 | { | |
3813 | flag_pass = TRUE; | |
3814 | csky_insn.idx = 0; | |
3815 | oper = str; | |
3816 | /* if operand_num = -1, it is a insn with a REGLIST type operand.i. */ | |
3817 | if (!(op[i].operand_num == csky_insn.number | |
3818 | || (op[i].operand_num == -1 && csky_insn.number != 0))) | |
3819 | { | |
3820 | /* The smaller err_num is more serious. */ | |
3821 | SET_ERROR_NUMBER (ERROR_OPERANDS_NUMBER, op[i].operand_num); | |
3822 | flag_pass = FALSE; | |
3823 | continue; | |
3824 | } | |
3825 | ||
3826 | for (j = 0; j < csky_insn.number; j++) | |
3827 | { | |
3828 | while (ISSPACE (*oper)) | |
3829 | oper++; | |
3830 | flag_pass = get_operand_value (&op[i], &oper, | |
3831 | &op[i].oprnd.oprnds[j]); | |
3832 | if (flag_pass == FALSE) | |
3833 | break; | |
3834 | while (ISSPACE (*oper)) | |
3835 | oper++; | |
3836 | /* Skip the ','. */ | |
3837 | if (j < csky_insn.number - 1 && op[i].operand_num != -1) | |
3838 | { | |
3839 | if (*oper == ',') | |
3840 | oper++; | |
3841 | else | |
3842 | { | |
3843 | SET_ERROR_NUMBER (ERROR_MISSING_COMMA, NULL); | |
3844 | flag_pass = FALSE; | |
3845 | break; | |
3846 | } | |
3847 | } | |
3848 | else if (!is_end_of_line[(unsigned char) *oper]) | |
3849 | { | |
3850 | SET_ERROR_NUMBER (ERROR_BAD_END, NULL); | |
3851 | flag_pass = FALSE; | |
3852 | break; | |
3853 | } | |
3854 | else | |
3855 | break; | |
3856 | } | |
3857 | /* Parse operands in one table end. */ | |
3858 | ||
3859 | if (flag_pass == TRUE) | |
3860 | { | |
3861 | /* Parse operands success, set opcode_idx. */ | |
3862 | csky_insn.opcode_idx = i; | |
3863 | return TRUE; | |
3864 | } | |
3865 | else | |
3866 | error_state.opnum = j + 1; | |
3867 | } | |
3868 | /* Parse operands in ALL tables end. */ | |
3869 | return FALSE; | |
3870 | } | |
3871 | ||
3872 | /* Parse the operands according to operand type. */ | |
3873 | ||
3874 | static bfd_boolean | |
3875 | parse_operands (char *str) | |
3876 | { | |
3877 | char *oper = str; | |
3878 | ||
3879 | /* Parse operands according to flag_force. */ | |
3880 | if (csky_insn.flag_force == INSN_OPCODE16F | |
3881 | && (csky_insn.opcode->isa_flag16 & isa_flag) != 0) | |
3882 | { | |
3883 | if (parse_operands_op (oper, csky_insn.opcode->op16) == TRUE) | |
3884 | { | |
3885 | csky_insn.isize = 2; | |
3886 | return TRUE; | |
3887 | } | |
3888 | return FALSE; | |
3889 | } | |
3890 | else if (csky_insn.flag_force == INSN_OPCODE32F | |
3891 | && (csky_insn.opcode->isa_flag32 & isa_flag) != 0) | |
3892 | { | |
3893 | if (parse_operands_op (oper, csky_insn.opcode->op32) == TRUE) | |
3894 | { | |
3895 | csky_insn.isize = 4; | |
3896 | return TRUE; | |
3897 | } | |
3898 | return FALSE; | |
3899 | } | |
3900 | else | |
3901 | { | |
3902 | if ((csky_insn.opcode->isa_flag16 & isa_flag) != 0 | |
3903 | && parse_operands_op (oper, csky_insn.opcode->op16) == TRUE) | |
3904 | { | |
3905 | csky_insn.isize = 2; | |
3906 | return TRUE; | |
3907 | } | |
3908 | if ((csky_insn.opcode->isa_flag32 & isa_flag) != 0 | |
3909 | && parse_operands_op (oper, csky_insn.opcode->op32) == TRUE) | |
3910 | { | |
3911 | csky_insn.isize = 4; | |
3912 | return TRUE; | |
3913 | } | |
3914 | return FALSE; | |
3915 | } | |
3916 | } | |
3917 | ||
3918 | static bfd_boolean | |
3919 | csky_generate_frags (void) | |
3920 | { | |
3921 | /* frag more relax reloc. */ | |
3922 | if (csky_insn.flag_force == INSN_OPCODE16F | |
3923 | || !IS_SUPPORT_OPCODE32 (csky_insn.opcode)) | |
3924 | { | |
3925 | csky_insn.output = frag_more (csky_insn.isize); | |
3926 | if (csky_insn.opcode->reloc16) | |
3927 | { | |
3928 | /* 16 bits opcode force, should generate fixup. */ | |
3929 | reloc_howto_type *howto; | |
3930 | howto = bfd_reloc_type_lookup (stdoutput, | |
3931 | csky_insn.opcode->reloc16); | |
3932 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
3933 | 2, &csky_insn.e1, howto->pc_relative, | |
3934 | csky_insn.opcode->reloc16); | |
3935 | } | |
3936 | } | |
3937 | else if (csky_insn.flag_force == INSN_OPCODE32F) | |
3938 | { | |
3939 | csky_insn.output = frag_more (csky_insn.isize); | |
3940 | if (csky_insn.opcode->reloc32) | |
3941 | { | |
3942 | reloc_howto_type *howto; | |
3943 | howto = bfd_reloc_type_lookup (stdoutput, | |
3944 | csky_insn.opcode->reloc32); | |
3945 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
3946 | 4, &csky_insn.e1, howto->pc_relative, | |
3947 | csky_insn.opcode->reloc32); | |
3948 | } | |
3949 | } | |
3950 | else if (csky_insn.opcode->relax) | |
3951 | /* Generate the relax information. */ | |
3952 | csky_insn.output = frag_var (rs_machine_dependent, | |
3953 | csky_insn.relax.max, | |
3954 | csky_insn.relax.var, | |
3955 | csky_insn.relax.subtype, | |
3956 | csky_insn.e1.X_add_symbol, | |
3957 | csky_insn.e1.X_add_number, 0); | |
3958 | else | |
3959 | { | |
3960 | csky_insn.output = frag_more (csky_insn.isize); | |
3961 | if (csky_insn.opcode->reloc16 && csky_insn.isize == 2) | |
3962 | { | |
3963 | reloc_howto_type *howto; | |
3964 | howto = bfd_reloc_type_lookup (stdoutput, | |
3965 | csky_insn.opcode->reloc16); | |
3966 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
3967 | 2, &csky_insn.e1, howto->pc_relative, | |
3968 | csky_insn.opcode->reloc16); | |
3969 | } | |
3970 | else if (csky_insn.opcode->reloc32 && csky_insn.isize == 4) | |
3971 | { | |
3972 | reloc_howto_type *howto; | |
3973 | howto = bfd_reloc_type_lookup (stdoutput, | |
3974 | csky_insn.opcode->reloc32); | |
3975 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
3976 | 4, &csky_insn.e1, howto->pc_relative, | |
3977 | csky_insn.opcode->reloc32); | |
3978 | } | |
3979 | } | |
3980 | return TRUE; | |
3981 | } | |
3982 | ||
3983 | /* Return the bits of VAL shifted according to MASK. The bits of MASK | |
3984 | need not be contiguous. */ | |
3985 | ||
3986 | static int | |
3987 | generate_masked_value (int mask, int val) | |
3988 | { | |
3989 | int ret = 0; | |
3990 | int bit; | |
3991 | ||
3992 | for (bit = 1; mask; bit = bit << 1) | |
3993 | if (mask & bit) | |
3994 | { | |
3995 | if (val & 0x1) | |
3996 | ret |= bit; | |
3997 | val = val >> 1; | |
3998 | mask &= ~bit; | |
3999 | } | |
4000 | return ret; | |
4001 | } | |
4002 | ||
4003 | /* Return the result of masking operand number OPRND_IDX into the | |
4004 | instruction word according to the information in OPRND. */ | |
4005 | ||
4006 | static int | |
4007 | generate_masked_operand (struct operand *oprnd, int *oprnd_idx) | |
4008 | { | |
4009 | struct soperand *soprnd = NULL; | |
4010 | int mask; | |
4011 | int val; | |
4012 | if ((unsigned int)oprnd->mask == HAS_SUB_OPERAND) | |
4013 | { | |
4014 | soprnd = (struct soperand *) oprnd; | |
4015 | generate_masked_operand (&soprnd->subs[0], oprnd_idx); | |
4016 | generate_masked_operand (&soprnd->subs[1], oprnd_idx); | |
4017 | return 0; | |
4018 | } | |
4019 | mask = oprnd->mask; | |
4020 | val = csky_insn.val[*oprnd_idx]; | |
4021 | (*oprnd_idx)++; | |
4022 | val = generate_masked_value (mask, val); | |
4023 | csky_insn.inst |= val; | |
4024 | ||
4025 | return 0; | |
4026 | } | |
4027 | ||
4028 | static bfd_boolean | |
4029 | csky_generate_insn (void) | |
4030 | { | |
4031 | int i = 0; | |
4032 | struct csky_opcode_info *opinfo = NULL; | |
4033 | ||
4034 | if (csky_insn.isize == 4) | |
4035 | opinfo = &csky_insn.opcode->op32[csky_insn.opcode_idx]; | |
4036 | else if (csky_insn.isize == 2) | |
4037 | opinfo = &csky_insn.opcode->op16[csky_insn.opcode_idx]; | |
4038 | ||
4039 | int sidx = 0; | |
4040 | csky_insn.inst = opinfo->opcode; | |
4041 | if (opinfo->operand_num == -1) | |
4042 | { | |
4043 | generate_masked_operand (&opinfo->oprnd.oprnds[i], &sidx); | |
4044 | return 0; | |
4045 | } | |
4046 | else | |
4047 | for (i = 0; i < opinfo->operand_num; i++) | |
4048 | generate_masked_operand (&opinfo->oprnd.oprnds[i], &sidx); | |
4049 | return 0; | |
4050 | } | |
4051 | ||
4052 | /* Main entry point for assembling a single instruction. */ | |
4053 | ||
4054 | void | |
4055 | md_assemble (char *str) | |
4056 | { | |
4057 | bfd_boolean must_check_literals = TRUE; | |
4058 | csky_insn.isize = 0; | |
4059 | csky_insn.idx = 0; | |
4060 | csky_insn.max = 0; | |
4061 | csky_insn.flag_force = INSN_OPCODE; | |
4062 | csky_insn.macro = NULL; | |
4063 | csky_insn.opcode = NULL; | |
4064 | memset (csky_insn.val, 0, sizeof (int) * MAX_OPRND_NUM); | |
4065 | /* Initialize err_num. */ | |
4066 | error_state.err_num = ERROR_NONE; | |
4067 | mov_r1_before = FALSE; | |
4068 | mov_r1_after = FALSE; | |
4069 | ||
4070 | mapping_state (MAP_TEXT); | |
4071 | /* Tie dwarf2 debug info to every insn if set option --gdwarf2. */ | |
4072 | dwarf2_emit_insn (0); | |
4073 | while (ISSPACE (* str)) | |
4074 | str++; | |
4075 | /* Get opcode from str. */ | |
4076 | if (parse_opcode (str) == FALSE) | |
4077 | { | |
4078 | csky_show_error (ERROR_OPCODE_ILLEGAL, 0, NULL, NULL); | |
4079 | return; | |
4080 | } | |
4081 | ||
4082 | /* If it is a macro instruction, handle it. */ | |
4083 | if (csky_insn.macro != NULL) | |
4084 | { | |
4085 | if (csky_insn.number == csky_insn.macro->oprnd_num) | |
4086 | { | |
4087 | csky_insn.macro->handle_func (); | |
4088 | return; | |
4089 | } | |
4090 | else if (error_state.err_num > ERROR_OPERANDS_NUMBER) | |
4091 | SET_ERROR_NUMBER (ERROR_OPERANDS_NUMBER, csky_insn.macro->oprnd_num); | |
4092 | } | |
4093 | ||
4094 | if (csky_insn.opcode == NULL) | |
4095 | { | |
4096 | SET_ERROR_NUMBER (ERROR_OPCODE_ILLEGAL, NULL); | |
4097 | csky_show_error (error_state.err_num, error_state.opnum, | |
4098 | (void *)error_state.arg1, (void *)error_state.arg1); | |
4099 | return; | |
4100 | } | |
4101 | ||
4102 | /* Parse the operands according to operand type. */ | |
4103 | if (parse_operands (csky_insn.opcode_end) == FALSE) | |
4104 | { | |
4105 | csky_show_error (error_state.err_num, error_state.opnum, | |
4106 | (void *)error_state.arg1, (void *)error_state.arg1); | |
4107 | return; | |
4108 | } | |
4109 | ||
4110 | /* if this insn has work in opcode table, then do it. */ | |
4111 | if (csky_insn.opcode->work != NULL) | |
4112 | must_check_literals = csky_insn.opcode->work (); | |
4113 | else | |
4114 | { | |
4115 | /* Generate relax or reloc if necessary. */ | |
4116 | csky_generate_frags (); | |
4117 | /* Generate the insn by mask. */ | |
4118 | csky_generate_insn (); | |
4119 | /* Write inst to frag. */ | |
4120 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
4121 | } | |
4122 | ||
4123 | /* Adjust for xtrb0/xtrb1/xtrb2/xtrb3/divs/divu in csky v1 ISA. */ | |
4124 | if (mov_r1_after == TRUE) | |
4125 | { | |
4126 | unsigned int mov_insn = CSKYV1_INST_MOV_RX_R1; | |
4127 | mov_insn |= csky_insn.val[0]; | |
4128 | mov_r1_before = TRUE; | |
4129 | csky_insn.output = frag_more (2); | |
4130 | dwarf2_emit_insn (0); | |
4131 | md_number_to_chars (csky_insn.output, mov_insn, 2); | |
4132 | csky_insn.isize += 2; | |
4133 | } | |
4134 | if (mov_r1_before == TRUE) | |
4135 | csky_insn.isize += 2; | |
4136 | ||
4137 | /* Check literal. */ | |
4138 | if (must_check_literals) | |
4139 | { | |
4140 | if (csky_insn.max == 0) | |
4141 | check_literals (csky_insn.opcode->transfer, csky_insn.isize); | |
4142 | else | |
4143 | check_literals (csky_insn.opcode->transfer, csky_insn.max); | |
4144 | } | |
4145 | ||
4146 | insn_reloc = BFD_RELOC_NONE; | |
4147 | } | |
4148 | ||
4149 | /* Attempt to handle option with value C, returning non-zero on success. */ | |
4150 | ||
4151 | int | |
4152 | md_parse_option (int c, const char *arg) | |
4153 | { | |
4154 | switch (c) | |
4155 | { | |
4156 | case 0: | |
4157 | break; | |
4158 | case OPTION_MARCH: | |
4159 | parse_arch (arg); | |
4160 | break; | |
4161 | case OPTION_MCPU: | |
4162 | parse_cpu (arg); | |
4163 | break; | |
4164 | default: | |
4165 | return 0; | |
4166 | } | |
4167 | return 1; | |
4168 | } | |
4169 | ||
4170 | /* Convert a machine dependent frag. */ | |
4171 | #define PAD_LITERAL_LENGTH 6 | |
4172 | #define opposite_of_stored_comp(insn) (insn ^ 0x04000000) | |
4173 | #define opposite_of_stored_compz(insn) (insn ^ 0x00200000) | |
4174 | #define make_insn(total_length, opcode, operand, operand_length) \ | |
4175 | do { \ | |
4176 | if (total_length > 0) \ | |
4177 | { \ | |
4178 | csky_write_insn (buf, \ | |
4179 | opcode | (operand & ((1 << operand_length) - 1)), \ | |
4180 | total_length); \ | |
4181 | buf += total_length; \ | |
4182 | fragp->fr_fix += total_length; \ | |
4183 | } \ | |
4184 | } while (0) | |
4185 | ||
4186 | #define make_literal(fragp, literal_offset) \ | |
4187 | do { \ | |
4188 | make_insn (literal_offset, PAD_FILL_CONTENT, 0, 0); \ | |
4189 | fix_new (fragp, fragp->fr_fix, 4, fragp->fr_symbol, \ | |
4190 | fragp->fr_offset, 0, BFD_RELOC_CKCORE_ADDR32); \ | |
4191 | make_insn (4, 0, 0, 0); \ | |
4192 | make_insn (2 - literal_offset, PAD_FILL_CONTENT, 0, 0); \ | |
4193 | } while (0) | |
4194 | ||
4195 | void | |
4196 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) | |
4197 | { | |
4198 | offsetT disp; | |
4199 | char *buf = fragp->fr_fix + fragp->fr_literal; | |
4200 | ||
4201 | gas_assert (fragp->fr_symbol); | |
4202 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) | |
4203 | disp = 0; | |
4204 | else | |
4205 | disp = (S_GET_VALUE (fragp->fr_symbol) | |
4206 | + fragp->fr_offset | |
4207 | - fragp->fr_address | |
4208 | - fragp->fr_fix); | |
4209 | ||
4210 | switch (fragp->fr_subtype) | |
4211 | { | |
4212 | /* generate new insn. */ | |
4213 | case C (COND_JUMP, DISP12): | |
4214 | case C (UNCD_JUMP, DISP12): | |
4215 | case C (COND_JUMP_PIC, DISP12): | |
4216 | case C (UNCD_JUMP_PIC, DISP12): | |
4217 | { | |
4218 | #define CSKY_V1_B_MASK 0xf8 | |
4219 | unsigned char t0; | |
4220 | disp -= 2; | |
4221 | if (disp & 1) | |
4222 | { | |
4223 | /* Error. odd displacement at %x, next_inst-2. */ | |
4224 | ; | |
4225 | } | |
4226 | disp >>= 1; | |
4227 | ||
4228 | if (!target_big_endian) | |
4229 | { | |
4230 | t0 = buf[1] & CSKY_V1_B_MASK; | |
4231 | md_number_to_chars (buf, disp, 2); | |
4232 | buf[1] = (buf[1] & ~CSKY_V1_B_MASK) | t0; | |
4233 | } | |
4234 | else | |
4235 | { | |
4236 | t0 = buf[0] & CSKY_V1_B_MASK; | |
4237 | md_number_to_chars (buf, disp, 2); | |
4238 | buf[0] = (buf[0] & ~CSKY_V1_B_MASK) | t0; | |
4239 | } | |
4240 | fragp->fr_fix += 2; | |
4241 | break; | |
4242 | } | |
4243 | case C (COND_JUMP, DISP32): | |
4244 | case C (COND_JUMP, UNDEF_WORD_DISP): | |
4245 | { | |
4246 | /* A conditional branch wont fit into 12 bits: | |
4247 | b!cond 1f | |
4248 | jmpi 0f | |
4249 | .align 2 | |
4250 | 0: .long disp | |
4251 | 1: | |
4252 | */ | |
4253 | int first_inst = fragp->fr_fix + fragp->fr_address; | |
4254 | int is_unaligned = (first_inst & 3); | |
4255 | ||
4256 | if (!target_big_endian) | |
4257 | { | |
4258 | /* b!cond instruction. */ | |
4259 | buf[1] ^= 0x08; | |
4260 | /* jmpi instruction. */ | |
4261 | buf[2] = CSKYV1_INST_JMPI & 0xff; | |
4262 | buf[3] = CSKYV1_INST_JMPI >> 8; | |
4263 | } | |
4264 | else | |
4265 | { | |
4266 | /* b!cond instruction. */ | |
4267 | buf[0] ^= 0x08; | |
4268 | /* jmpi instruction. */ | |
4269 | buf[2] = CSKYV1_INST_JMPI >> 8; | |
4270 | buf[3] = CSKYV1_INST_JMPI & 0xff; | |
4271 | } | |
4272 | ||
4273 | if (is_unaligned) | |
4274 | { | |
4275 | if (!target_big_endian) | |
4276 | { | |
4277 | /* bt/bf: jump to pc + 2 + (4 << 1). */ | |
4278 | buf[0] = 4; | |
4279 | /* jmpi: jump to MEM (pc + 2 + (1 << 2)). */ | |
4280 | buf[2] = 1; | |
4281 | } | |
4282 | else | |
4283 | { | |
4284 | /* bt/bf: jump to pc + 2 + (4 << 1). */ | |
4285 | buf[1] = 4; | |
4286 | /* jmpi: jump to MEM (pc + 2 + (1 << 2)). */ | |
4287 | buf[3] = 1; | |
4288 | } | |
4289 | /* Aligned 4 bytes. */ | |
4290 | buf[4] = 0; | |
4291 | buf[5] = 0; | |
4292 | /* .long */ | |
4293 | buf[6] = 0; | |
4294 | buf[7] = 0; | |
4295 | buf[8] = 0; | |
4296 | buf[9] = 0; | |
4297 | ||
4298 | /* Make reloc for the long disp. */ | |
4299 | fix_new (fragp, fragp->fr_fix + 6, 4, | |
4300 | fragp->fr_symbol, fragp->fr_offset, 0, BFD_RELOC_32); | |
4301 | fragp->fr_fix += C32_LEN; | |
4302 | } | |
4303 | else | |
4304 | { | |
4305 | if (!target_big_endian) | |
4306 | { | |
4307 | /* bt/bf: jump to pc + 2 + (3 << 1). */ | |
4308 | buf[0] = 3; | |
4309 | /* jmpi: jump to MEM (pc + 2 + (0 << 2)). */ | |
4310 | buf[2] = 0; | |
4311 | } | |
4312 | else | |
4313 | { | |
4314 | /* bt/bf: jump to pc + 2 + (3 << 1). */ | |
4315 | buf[1] = 3; | |
4316 | /* jmpi: jump to MEM (pc + 2 + (0 << 2)). */ | |
4317 | buf[3] = 0; | |
4318 | } | |
4319 | /* .long */ | |
4320 | buf[4] = 0; | |
4321 | buf[5] = 0; | |
4322 | buf[6] = 0; | |
4323 | buf[7] = 0; | |
4324 | ||
4325 | /* Make reloc for the long disp. */ | |
4326 | fix_new (fragp, fragp->fr_fix + 4, 4, | |
4327 | fragp->fr_symbol, fragp->fr_offset, 0, BFD_RELOC_32); | |
4328 | fragp->fr_fix += C32_LEN; | |
4329 | ||
4330 | /* Frag is actually shorter (see the other side of this ifdef) | |
4331 | but gas isn't prepared for that. We have to re-adjust | |
4332 | the branch displacement so that it goes beyond the | |
4333 | full length of the fragment, not just what we actually | |
4334 | filled in. */ | |
4335 | if (!target_big_endian) | |
4336 | buf[0] = 4; | |
4337 | else | |
4338 | buf[1] = 4; | |
4339 | } | |
4340 | } | |
4341 | break; | |
4342 | ||
4343 | case C (COND_JUMP_PIC, DISP32): | |
4344 | case C (COND_JUMP_PIC, UNDEF_WORD_DISP): | |
4345 | { | |
4346 | #define BYTE_1(a) (target_big_endian ? ((a) & 0xff) : ((a) >> 8)) | |
4347 | #define BYTE_0(a) (target_big_endian ? ((a) >> 8) : ((a) & 0xff)) | |
4348 | /* b!cond 1f | |
4349 | subi sp, 8 | |
4350 | stw r15, (sp, 0) | |
4351 | bsr .L0 | |
4352 | .L0: | |
4353 | lrw r1, 0f | |
4354 | add r1, r15 | |
4355 | addi sp, 8 | |
4356 | jmp r1 | |
4357 | .align 2 | |
4358 | 0: .long (tar_addr - pc) | |
4359 | 1: | |
4360 | */ | |
4361 | int first_inst = fragp->fr_fix + fragp->fr_address; | |
4362 | int is_unaligned = (first_inst & 3); | |
4363 | disp -= 8; | |
4364 | /* Toggle T/F bit. */ | |
4365 | if (! target_big_endian) | |
4366 | buf[1] ^= 0x08; | |
4367 | else | |
4368 | buf[0] ^= 0x08; | |
4369 | buf[2] = BYTE_0 (CSKYV1_INST_SUBI | (7 << 4)); /* subi r0, 8. */ | |
4370 | buf[3] = BYTE_1 (CSKYV1_INST_SUBI | (7 << 4)); | |
4371 | buf[4] = BYTE_0 (CSKYV1_INST_STW | (15 << 8)); /* stw r15, r0. */ | |
4372 | buf[5] = BYTE_1 (CSKYV1_INST_STW | (15 << 8)); | |
4373 | buf[6] = BYTE_0 (CSKYV1_INST_BSR); /* bsr pc + 2. */ | |
4374 | buf[7] = BYTE_1 (CSKYV1_INST_BSR); | |
4375 | buf[8] = BYTE_0 (CSKYV1_INST_LRW | (1 << 8)); /* lrw r1, (tar_addr - pc). */ | |
4376 | buf[9] = BYTE_1 (CSKYV1_INST_LRW | (1 << 8)); | |
4377 | buf[10] = BYTE_0 (CSKYV1_INST_ADDU | (15 << 4) | 1); /* add r1, r15. */ | |
4378 | buf[11] = BYTE_1 (CSKYV1_INST_ADDU | (15 << 4) | 1); | |
4379 | buf[12] = BYTE_0 (CSKYV1_INST_LDW | (15 << 8)); /* ldw r15, r0. */ | |
4380 | buf[13] = BYTE_1 (CSKYV1_INST_LDW | (15 << 8)); | |
4381 | buf[14] = BYTE_0 (CSKYV1_INST_ADDI | (7 << 4)); /* addi r0, 8. */ | |
4382 | buf[15] = BYTE_1 (CSKYV1_INST_ADDI | (7 << 4)); | |
4383 | buf[16] = BYTE_0 (CSKYV1_INST_JMP | 1); /* jmp r1. */ | |
4384 | buf[17] = BYTE_1 (CSKYV1_INST_JMP | 1); | |
4385 | ||
4386 | if (!is_unaligned) | |
4387 | { | |
4388 | if (!target_big_endian) | |
4389 | { | |
4390 | buf[0] = 11; | |
4391 | buf[8] = 3; | |
4392 | buf[20] = disp & 0xff; | |
4393 | buf[21] = (disp >> 8) & 0xff; | |
4394 | buf[22] = (disp >> 16) & 0xff; | |
4395 | buf[23] = (disp >> 24) & 0xff; | |
4396 | } | |
4397 | else /* if !target_big_endian. */ | |
4398 | { | |
4399 | buf[1] = 11; | |
4400 | buf[9] = 3; | |
4401 | buf[20] = (disp >> 24) & 0xff; | |
4402 | buf[21] = (disp >> 16) & 0xff; | |
4403 | buf[22] = (disp >> 8) & 0xff; | |
4404 | buf[23] = disp & 0xff; | |
4405 | } | |
4406 | buf[18] = 0; /* alignment. */ | |
4407 | buf[19] = 0; | |
4408 | fragp->fr_fix += C32_LEN_PIC; | |
4409 | } | |
4410 | else /* if !is_unaligned. */ | |
4411 | { | |
4412 | if (!target_big_endian) | |
4413 | { | |
4414 | buf[0] = 11; | |
4415 | buf[8] = 2; | |
4416 | buf[18] = disp & 0xff; | |
4417 | buf[19] = (disp >> 8) & 0xff; | |
4418 | buf[20] = (disp >> 16) & 0xff; | |
4419 | buf[21] = (disp >> 24) & 0xff; | |
4420 | } | |
4421 | else /* if !target_big_endian. */ | |
4422 | { | |
4423 | buf[1] = 11; | |
4424 | buf[9] = 2; | |
4425 | buf[18] = (disp >> 24) & 0xff; | |
4426 | buf[19] = (disp >> 16) & 0xff; | |
4427 | buf[20] = (disp >> 8) & 0xff; | |
4428 | buf[21] = disp & 0xff; | |
4429 | } | |
4430 | fragp->fr_fix += C32_LEN_PIC; | |
4431 | ||
4432 | } /* end if is_unaligned. */ | |
4433 | } /* end case C (COND_JUMP_PIC, DISP32)/C (COND_JUMP_PIC, UNDEF_WORD_DISP). */ | |
4434 | break; | |
4435 | case C (UNCD_JUMP, DISP32): | |
4436 | case C (UNCD_JUMP, UNDEF_WORD_DISP): | |
4437 | { | |
4438 | /* jmpi 0f | |
4439 | .align 2 | |
4440 | 0: .long disp. */ | |
4441 | int first_inst = fragp->fr_fix + fragp->fr_address; | |
4442 | int is_unaligned = (first_inst & 3); | |
4443 | /* Build jmpi. */ | |
4444 | buf[0] = BYTE_0 (CSKYV1_INST_JMPI); | |
4445 | buf[1] = BYTE_1 (CSKYV1_INST_JMPI); | |
4446 | if (!is_unaligned) | |
4447 | { | |
4448 | if (!target_big_endian) | |
4449 | buf[0] = 1; | |
4450 | else | |
4451 | buf[1] = 1; | |
4452 | /* Alignment. */ | |
4453 | buf[2] = 0; | |
4454 | buf[3] = 0; | |
4455 | /* .long */ | |
4456 | buf[4] = 0; | |
4457 | buf[5] = 0; | |
4458 | buf[6] = 0; | |
4459 | buf[7] = 0; | |
4460 | fix_new (fragp, fragp->fr_fix + 4, 4, | |
4461 | fragp->fr_symbol, fragp->fr_offset, 0, BFD_RELOC_32); | |
4462 | fragp->fr_fix += U32_LEN; | |
4463 | } | |
4464 | else /* if is_unaligned. */ | |
4465 | { | |
4466 | if (!target_big_endian) | |
4467 | buf[0] = 0; | |
4468 | else | |
4469 | buf[1] = 0; | |
4470 | /* .long */ | |
4471 | buf[2] = 0; | |
4472 | buf[3] = 0; | |
4473 | buf[4] = 0; | |
4474 | buf[5] = 0; | |
4475 | fix_new (fragp, fragp->fr_fix + 2, 4, | |
4476 | fragp->fr_symbol, fragp->fr_offset, 0, BFD_RELOC_32); | |
4477 | fragp->fr_fix += U32_LEN; | |
4478 | ||
4479 | } | |
4480 | } | |
4481 | break; | |
4482 | case C (UNCD_JUMP_PIC, DISP32): | |
4483 | case C (UNCD_JUMP_PIC, UNDEF_WORD_DISP): | |
4484 | { | |
4485 | /* subi sp, 8 | |
4486 | stw r15, (sp) | |
4487 | bsr .L0 | |
4488 | .L0: | |
4489 | lrw r1, 0f | |
4490 | add r1, r15 | |
4491 | ldw r15, (sp) | |
4492 | addi sp, 8 | |
4493 | jmp r1 | |
4494 | .align 2 | |
4495 | 0: .long (tar_add - pc) | |
4496 | 1: | |
4497 | */ | |
4498 | /* If the b!cond is 4 byte aligned, the literal which would | |
4499 | go at x+4 will also be aligned. */ | |
4500 | int first_inst = fragp->fr_fix + fragp->fr_address; | |
4501 | int is_unaligned = (first_inst & 3); | |
4502 | disp -= 6; | |
4503 | ||
4504 | buf[0] = BYTE_0 (CSKYV1_INST_SUBI | (7 << 4)); /* subi r0, 8. */ | |
4505 | buf[1] = BYTE_1 (CSKYV1_INST_SUBI | (7 << 4)); | |
4506 | buf[2] = BYTE_0 (CSKYV1_INST_STW | (15 << 8)); /* stw r15, r0. */ | |
4507 | buf[3] = BYTE_1 (CSKYV1_INST_STW | (15 << 8)); | |
4508 | buf[4] = BYTE_0 (CSKYV1_INST_BSR); /* bsr pc + 2. */ | |
4509 | buf[5] = BYTE_1 (CSKYV1_INST_BSR); | |
4510 | buf[6] = BYTE_0 (CSKYV1_INST_LRW | (1 << 8)); /* lrw r1, (tar_addr - pc). */ | |
4511 | buf[7] = BYTE_1 (CSKYV1_INST_LRW | (1 << 8)); | |
4512 | buf[8] = BYTE_0 (CSKYV1_INST_ADDU | (15 << 4) | 1); /* add r1, r15. */ | |
4513 | buf[9] = BYTE_1 (CSKYV1_INST_ADDU | (15 << 4) | 1); | |
4514 | buf[10] = BYTE_0 (CSKYV1_INST_LDW | (15 << 8)); /* ldw r15, r0. */ | |
4515 | buf[11] = BYTE_1 (CSKYV1_INST_LDW | (15 << 8)); | |
4516 | buf[12] = BYTE_0 (CSKYV1_INST_ADDI | (7 << 4)); /* addi r0, 8. */ | |
4517 | buf[13] = BYTE_1 (CSKYV1_INST_ADDI | (7 << 4)); | |
4518 | buf[14] = BYTE_0 (CSKYV1_INST_JMP | 1); /* jmp r1. */ | |
4519 | buf[15] = BYTE_1 (CSKYV1_INST_JMP | 1); | |
4520 | ||
4521 | if (is_unaligned) | |
4522 | { | |
4523 | if (!target_big_endian) | |
4524 | { | |
4525 | buf[6] = 3; | |
4526 | buf[18] = disp & 0xff; | |
4527 | buf[19] = (disp >> 8) & 0xff; | |
4528 | buf[20] = (disp >> 16) & 0xff; | |
4529 | buf[21] = (disp >> 24) & 0xff; | |
4530 | } | |
4531 | else | |
4532 | { | |
4533 | buf[7] = 3; | |
4534 | buf[18] = (disp >> 24) & 0xff; | |
4535 | buf[19] = (disp >> 16) & 0xff; | |
4536 | buf[20] = (disp >> 8) & 0xff; | |
4537 | buf[21] = disp & 0xff; | |
4538 | } | |
4539 | buf[16] = 0; | |
4540 | buf[17] = 0; | |
4541 | fragp->fr_fix += U32_LEN_PIC; | |
4542 | } | |
4543 | else | |
4544 | { | |
4545 | if (!target_big_endian) | |
4546 | { | |
4547 | buf[6] = 2; | |
4548 | buf[16] = disp & 0xff; | |
4549 | buf[17] = (disp >> 8) & 0xff; | |
4550 | buf[18] = (disp >> 16) & 0xff; | |
4551 | buf[19] = (disp >> 24) & 0xff; | |
4552 | } | |
4553 | else | |
4554 | { | |
4555 | buf[7] = 2; | |
4556 | buf[16] = (disp >> 24) & 0xff; | |
4557 | buf[17] = (disp >> 16) & 0xff; | |
4558 | buf[18] = (disp >> 8) & 0xff; | |
4559 | buf[19] = disp & 0xff; | |
4560 | } | |
4561 | fragp->fr_fix += U32_LEN_PIC; | |
4562 | } | |
4563 | } | |
4564 | break; | |
4565 | case COND_DISP10: | |
4566 | case SCOND_DISP10: | |
4567 | case UNCD_DISP10: | |
4568 | case JCOND_DISP10: | |
4569 | case JUNCD_DISP10: | |
4570 | { | |
4571 | unsigned int inst = csky_read_insn (buf, 2); | |
4572 | inst |= (disp >> 1) & ((1 << 10) - 1); | |
4573 | csky_write_insn (buf, inst, 2); | |
4574 | fragp->fr_fix += 2; | |
4575 | break; | |
4576 | } | |
4577 | case SCOND_DISP16: | |
4578 | { | |
4579 | unsigned int inst = csky_read_insn (buf, 2); | |
4580 | ||
4581 | if (inst == CSKYV2_INST_BT16) | |
4582 | inst = CSKYV2_INST_BF16; | |
4583 | else | |
4584 | inst = CSKYV2_INST_BT16; | |
4585 | make_insn (2, inst, (2 + 4) >> 1, 10); | |
4586 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) | |
4587 | fix_new (fragp, fragp->fr_fix, 4, | |
4588 | fragp->fr_symbol, fragp->fr_offset, 1, | |
4589 | BFD_RELOC_CKCORE_PCREL_IMM16BY2); | |
4590 | disp -= 2; | |
4591 | inst = CSKYV2_INST_BR32 | ((disp >> 1) & ((1 << 16) - 1)); | |
4592 | csky_write_insn (buf, inst, 4); | |
4593 | fragp->fr_fix += 4; | |
4594 | break; | |
4595 | } | |
4596 | case COND_DISP16: | |
4597 | case JCOND_DISP16: | |
4598 | { | |
4599 | unsigned int inst = csky_read_insn (buf, 2); | |
4600 | ||
4601 | if (inst == CSKYV2_INST_BT16) | |
4602 | inst = CSKYV2_INST_BT32; | |
4603 | else | |
4604 | inst = CSKYV2_INST_BF32; | |
4605 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) | |
4606 | fix_new (fragp, fragp->fr_fix, 4, | |
4607 | fragp->fr_symbol, fragp->fr_offset, 1, | |
4608 | BFD_RELOC_CKCORE_PCREL_IMM16BY2); | |
4609 | inst |= (disp >> 1) & ((1 << 16) - 1); | |
4610 | csky_write_insn (buf, inst, 4); | |
4611 | fragp->fr_fix += 4; | |
4612 | break; | |
4613 | } | |
4614 | case LRW_DISP7: | |
4615 | { | |
4616 | unsigned int inst = csky_read_insn (buf, 2); | |
4617 | int imm; | |
4618 | imm = (disp + 2) >> 2; | |
4619 | inst |= (imm >> 5) << 8; | |
4620 | make_insn (2, inst, (imm & 0x1f), 5); | |
4621 | break; | |
4622 | } | |
4623 | case LRW2_DISP8: | |
4624 | { | |
4625 | unsigned int inst = csky_read_insn (buf, 2); | |
4626 | int imm = (disp + 2) >> 2; | |
4627 | if (imm >= 0x80) | |
4628 | { | |
4629 | inst &= 0xe0; | |
4630 | inst |= (~((imm >> 5) << 8)) & 0x300; | |
4631 | make_insn (2, inst, (~imm & 0x1f), 5); | |
4632 | } | |
4633 | else | |
4634 | { | |
4635 | inst |= (imm >> 5) << 8; | |
4636 | make_insn (2, inst, (imm & 0x1f), 5); | |
4637 | } | |
4638 | break; | |
4639 | } | |
4640 | case LRW_DISP16: | |
4641 | { | |
4642 | unsigned int inst = csky_read_insn (buf, 2); | |
4643 | inst = CSKYV2_INST_LRW32 | (((inst & 0xe0) >> 5) << 16); | |
4644 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) | |
4645 | fix_new (fragp, fragp->fr_fix, 4, | |
4646 | fragp->fr_symbol, fragp->fr_offset, 1, | |
4647 | BFD_RELOC_CKCORE_PCREL_IMM16BY4); | |
4648 | make_insn (4, inst, ((disp + 2) >> 2), 16); | |
4649 | break; | |
4650 | } | |
4651 | case JCOMPZ_DISP16: | |
4652 | { | |
4653 | unsigned int inst = csky_read_insn (buf, 4); | |
4654 | make_insn (4, inst, disp >> 1, 16); | |
4655 | } | |
4656 | break; | |
4657 | case JCOMPZ_DISP32: | |
4658 | { | |
4659 | unsigned int inst = csky_read_insn (buf, 4); | |
4660 | int literal_offset; | |
4661 | make_insn (4, opposite_of_stored_compz (inst), | |
4662 | (4 + 4 + PAD_LITERAL_LENGTH) >> 1, 16); | |
4663 | literal_offset = ((fragp->fr_address + fragp->fr_fix) % 4 == 0 | |
4664 | ? 0 : 2); | |
4665 | make_insn (4, CSKYV2_INST_JMPI32, (4 + literal_offset + 2) >> 2, 10); | |
4666 | make_literal (fragp, literal_offset); | |
4667 | } | |
4668 | break; | |
4669 | case JUNCD_DISP16: | |
4670 | case UNCD_DISP16: | |
4671 | { | |
4672 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) | |
4673 | fix_new (fragp, fragp->fr_fix, 4, | |
4674 | fragp->fr_symbol, fragp->fr_offset, 1, | |
4675 | BFD_RELOC_CKCORE_PCREL_IMM16BY2); | |
4676 | make_insn (4, CSKYV2_INST_BR32, disp >> 1, 16); | |
4677 | } | |
4678 | break; | |
4679 | case JCOND_DISP32: | |
4680 | { | |
4681 | /* 'jbt'/'jbf'-> <bf16/bt16>; jmpi32; [pad16]+literal32 */ | |
4682 | unsigned int inst = csky_read_insn (buf, 2); | |
4683 | int literal_offset; | |
4684 | ||
4685 | if (inst == CSKYV2_INST_BT16) | |
4686 | inst = CSKYV2_INST_BF16; | |
4687 | else | |
4688 | inst = CSKYV2_INST_BT16; | |
4689 | make_insn (2, inst, (2 + 4 + PAD_LITERAL_LENGTH) >> 1, 10); | |
4690 | literal_offset = ((fragp->fr_address + fragp->fr_fix) % 4 == 0 | |
4691 | ? 0 : 2); | |
4692 | make_insn (4, CSKYV2_INST_JMPI32, (4 + literal_offset + 2) >> 2, 10); | |
4693 | make_literal (fragp, literal_offset); | |
4694 | break; | |
4695 | } | |
4696 | case JUNCD_DISP32: | |
4697 | { | |
4698 | int literal_offset; | |
4699 | literal_offset = ((fragp->fr_address + fragp->fr_fix) % 4 == 0 | |
4700 | ? 0 : 2); | |
4701 | make_insn (4, CSKYV2_INST_JMPI32, (4 + literal_offset + 2) >> 2, 10); | |
4702 | make_literal (fragp, literal_offset); | |
4703 | } | |
4704 | break; | |
4705 | case RELAX_OVERFLOW: | |
4706 | csky_branch_report_error (fragp->fr_file, fragp->fr_line, | |
4707 | fragp->fr_symbol, disp); | |
4708 | break; | |
4709 | default: | |
4710 | abort (); | |
4711 | break; | |
4712 | } | |
4713 | } | |
4714 | ||
4715 | /* Round up a section size to the appropriate boundary. */ | |
4716 | ||
4717 | valueT | |
4718 | md_section_align (segT segment ATTRIBUTE_UNUSED, | |
4719 | valueT size) | |
4720 | { | |
4721 | return size; | |
4722 | } | |
4723 | ||
4724 | /* MD interface: Symbol and relocation handling. */ | |
4725 | ||
4726 | void md_csky_end (void) | |
4727 | { | |
4728 | dump_literals (0); | |
4729 | } | |
4730 | ||
4731 | /* Return the address within the segment that a PC-relative fixup is | |
4732 | relative to. */ | |
4733 | ||
4734 | long | |
4735 | md_pcrel_from_section (fixS * fixP, segT seg) | |
4736 | { | |
4737 | /* If the symbol is undefined or defined in another section | |
4738 | we leave the add number alone for the linker to fix it later. */ | |
4739 | if (fixP->fx_addsy != (symbolS *) NULL | |
4740 | && (! S_IS_DEFINED (fixP->fx_addsy) | |
4741 | || S_GET_SEGMENT (fixP->fx_addsy) != seg)) | |
4742 | return fixP->fx_size; | |
4743 | ||
4744 | /* The case where we are going to resolve things. */ | |
4745 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
4746 | } | |
4747 | ||
4748 | /* csky_cons_fix_new is called via the expression parsing code when a | |
4749 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
4750 | ||
4751 | void | |
4752 | csky_cons_fix_new (fragS *frag, | |
4753 | unsigned int off, | |
4754 | unsigned int len, | |
4755 | expressionS *exp, | |
4756 | bfd_reloc_code_real_type reloc) | |
4757 | { | |
4758 | fixS *fixP; | |
4759 | ||
4760 | if (BFD_RELOC_CKCORE_GOTOFF == insn_reloc | |
4761 | || BFD_RELOC_CKCORE_GOTPC == insn_reloc | |
4762 | || BFD_RELOC_CKCORE_GOT32 == insn_reloc | |
4763 | || BFD_RELOC_CKCORE_PLT32 == insn_reloc | |
4764 | || BFD_RELOC_CKCORE_TLS_LE32 == insn_reloc | |
4765 | || BFD_RELOC_CKCORE_TLS_GD32 == insn_reloc | |
4766 | || BFD_RELOC_CKCORE_TLS_LDM32 == insn_reloc | |
4767 | || BFD_RELOC_CKCORE_TLS_LDO32 == insn_reloc | |
4768 | || BFD_RELOC_CKCORE_TLS_IE32 == insn_reloc) | |
4769 | reloc = insn_reloc; | |
4770 | else | |
4771 | switch (len) | |
4772 | { | |
4773 | case 1: | |
4774 | reloc = BFD_RELOC_8; | |
4775 | break; | |
4776 | case 2: | |
4777 | reloc = BFD_RELOC_16; | |
4778 | break; | |
4779 | case 4: | |
4780 | reloc = BFD_RELOC_32; | |
4781 | break; | |
4782 | case 8: | |
4783 | reloc = BFD_RELOC_64; | |
4784 | break; | |
4785 | default: | |
4786 | as_bad (_("unsupported BFD relocation size %d"), len); | |
4787 | reloc = BFD_RELOC_32; | |
4788 | break; | |
4789 | } | |
4790 | fixP = fix_new_exp (frag, off, (int) len, exp, 0, reloc); | |
4791 | if (BFD_RELOC_CKCORE_TLS_IE32 == insn_reloc | |
4792 | || BFD_RELOC_CKCORE_TLS_GD32 == insn_reloc | |
4793 | || BFD_RELOC_CKCORE_TLS_LDM32 == insn_reloc) | |
4794 | { | |
4795 | fixP->tc_fix_data.frag = literal_insn_offset->tls_addend.frag; | |
4796 | fixP->tc_fix_data.offset = literal_insn_offset->tls_addend.offset; | |
4797 | } | |
4798 | } | |
4799 | ||
4800 | /* See whether we need to force a relocation into the output file. | |
4801 | This is used to force out switch and PC relative relocations when | |
4802 | relaxing. */ | |
4803 | ||
4804 | int | |
4805 | csky_force_relocation (fixS * fix) | |
4806 | { | |
4807 | if (fix->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4808 | || fix->fx_r_type == BFD_RELOC_VTABLE_ENTRY | |
4809 | || fix->fx_r_type == BFD_RELOC_RVA | |
4810 | || fix->fx_r_type == BFD_RELOC_CKCORE_ADDR_HI16 | |
4811 | || fix->fx_r_type == BFD_RELOC_CKCORE_ADDR_LO16 | |
4812 | || fix->fx_r_type == BFD_RELOC_CKCORE_TOFFSET_LO16 | |
4813 | || fix->fx_r_type == BFD_RELOC_CKCORE_DOFFSET_LO16) | |
4814 | return 1; | |
4815 | ||
4816 | if (fix->fx_addsy == NULL) | |
4817 | return 0; | |
4818 | ||
4819 | if (do_use_branchstub | |
4820 | && fix->fx_r_type == BFD_RELOC_CKCORE_PCREL_IMM26BY2 | |
4821 | && (symbol_get_bfdsym (fix->fx_addsy)->flags & BSF_FUNCTION)) | |
4822 | return 1; | |
4823 | return S_FORCE_RELOC (fix->fx_addsy, fix->fx_subsy == NULL); | |
4824 | } | |
4825 | ||
4826 | /* Return true if the fix can be handled by GAS, false if it must | |
4827 | be passed through to the linker. */ | |
4828 | ||
4829 | bfd_boolean | |
4830 | csky_fix_adjustable (fixS * fixP) | |
4831 | { | |
4832 | if (fixP->fx_addsy == NULL) | |
4833 | return 1; | |
4834 | ||
4835 | /* We need the symbol name for the VTABLE entries. */ | |
4836 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4837 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY | |
4838 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT32 | |
4839 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT32 | |
4840 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT12 | |
4841 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT12 | |
4842 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT_HI16 | |
4843 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT_LO16 | |
4844 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT_HI16 | |
4845 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT_LO16 | |
4846 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF | |
4847 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF_HI16 | |
4848 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF_LO16 | |
4849 | || fixP->fx_r_type == BFD_RELOC_CKCORE_ADDR_HI16 | |
4850 | || fixP->fx_r_type == BFD_RELOC_CKCORE_ADDR_LO16 | |
4851 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT_IMM18BY4 | |
4852 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT_IMM18BY4 | |
4853 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF_IMM18 | |
4854 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_LE32 | |
4855 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_IE32 | |
4856 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_GD32 | |
4857 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_LDM32 | |
4858 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_LDO32) | |
4859 | return 0; | |
4860 | ||
4861 | if (do_use_branchstub | |
4862 | && fixP->fx_r_type == BFD_RELOC_CKCORE_PCREL_IMM26BY2 | |
4863 | && (symbol_get_bfdsym (fixP->fx_addsy)->flags & BSF_FUNCTION)) | |
4864 | return 0; | |
4865 | ||
4866 | return 1; | |
4867 | } | |
4868 | ||
4869 | void | |
4870 | md_apply_fix (fixS *fixP, | |
4871 | valueT *valP, | |
4872 | segT seg) | |
4873 | { | |
4874 | reloc_howto_type *howto; | |
4875 | /* Note: use offsetT because it is signed, valueT is unsigned. */ | |
4876 | offsetT val = *valP; | |
4877 | char *buf = fixP->fx_frag->fr_literal + fixP->fx_where; | |
4878 | ||
4879 | /* if fx_done = 0, fixup will also be processed in | |
4880 | * tc_gen_reloc() after md_apply_fix(). */ | |
4881 | fixP->fx_done = 0; | |
4882 | ||
4883 | /* If the fix is relative to a symbol which is not defined, or not | |
4884 | in the same segment as the fix, we cannot resolve it here. */ | |
4885 | if (IS_CSKY_V1 (mach_flag) && fixP->fx_addsy != NULL | |
4886 | && (! S_IS_DEFINED (fixP->fx_addsy) | |
4887 | || S_GET_SEGMENT (fixP->fx_addsy) != seg)) | |
4888 | { | |
4889 | switch (fixP->fx_r_type) | |
4890 | { | |
4891 | /* Data fx_addnumber is greater than 16 bits, | |
4892 | so fx_addnumber is assigned zero. */ | |
4893 | case BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2: | |
4894 | *valP = 0; | |
4895 | break; | |
4896 | case BFD_RELOC_CKCORE_TLS_IE32: | |
4897 | case BFD_RELOC_CKCORE_TLS_LDM32: | |
4898 | case BFD_RELOC_CKCORE_TLS_GD32: | |
4899 | { | |
4900 | struct tls_addend *ta = &(fixP->tc_fix_data); | |
4901 | fixP->fx_offset = (fixP->fx_frag->fr_address + fixP->fx_where | |
4902 | - (ta->frag->fr_address + ta->offset)); | |
4903 | } | |
4904 | /* Fall through. */ | |
4905 | case BFD_RELOC_CKCORE_TLS_LE32: | |
4906 | case BFD_RELOC_CKCORE_TLS_LDO32: | |
4907 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
4908 | break; | |
4909 | default: | |
4910 | break; | |
4911 | } | |
4912 | #ifdef OBJ_ELF | |
4913 | /* For ELF we can just return and let the reloc that will be generated | |
4914 | take care of everything. For COFF we still have to insert 'val' | |
4915 | into the insn since the addend field will be ignored. */ | |
4916 | return; | |
4917 | #endif | |
4918 | } | |
4919 | ||
4920 | /* We can handle these relocs. */ | |
4921 | switch (fixP->fx_r_type) | |
4922 | { | |
4923 | case BFD_RELOC_CKCORE_PCREL32: | |
4924 | break; | |
4925 | case BFD_RELOC_VTABLE_INHERIT: | |
4926 | fixP->fx_r_type = BFD_RELOC_CKCORE_GNU_VTINHERIT; | |
4927 | if (fixP->fx_addsy && !S_IS_DEFINED (fixP->fx_addsy) | |
4928 | && !S_IS_WEAK (fixP->fx_addsy)) | |
4929 | S_SET_WEAK (fixP->fx_addsy); | |
4930 | break; | |
4931 | case BFD_RELOC_VTABLE_ENTRY: | |
4932 | fixP->fx_r_type = BFD_RELOC_CKCORE_GNU_VTENTRY; | |
4933 | break; | |
4934 | case BFD_RELOC_CKCORE_GOT12: | |
4935 | case BFD_RELOC_CKCORE_PLT12: | |
4936 | case BFD_RELOC_CKCORE_ADDR_HI16: | |
4937 | case BFD_RELOC_CKCORE_ADDR_LO16: | |
4938 | case BFD_RELOC_CKCORE_TOFFSET_LO16: | |
4939 | case BFD_RELOC_CKCORE_DOFFSET_LO16: | |
4940 | case BFD_RELOC_CKCORE_GOT_HI16: | |
4941 | case BFD_RELOC_CKCORE_GOT_LO16: | |
4942 | case BFD_RELOC_CKCORE_PLT_HI16: | |
4943 | case BFD_RELOC_CKCORE_PLT_LO16: | |
4944 | case BFD_RELOC_CKCORE_GOTPC_HI16: | |
4945 | case BFD_RELOC_CKCORE_GOTPC_LO16: | |
4946 | case BFD_RELOC_CKCORE_GOTOFF_HI16: | |
4947 | case BFD_RELOC_CKCORE_GOTOFF_LO16: | |
4948 | case BFD_RELOC_CKCORE_DOFFSET_IMM18: | |
4949 | case BFD_RELOC_CKCORE_DOFFSET_IMM18BY2: | |
4950 | case BFD_RELOC_CKCORE_DOFFSET_IMM18BY4: | |
4951 | case BFD_RELOC_CKCORE_GOTOFF_IMM18: | |
4952 | case BFD_RELOC_CKCORE_GOT_IMM18BY4: | |
4953 | case BFD_RELOC_CKCORE_PLT_IMM18BY4: | |
4954 | break; | |
4955 | case BFD_RELOC_CKCORE_TLS_IE32: | |
4956 | case BFD_RELOC_CKCORE_TLS_LDM32: | |
4957 | case BFD_RELOC_CKCORE_TLS_GD32: | |
4958 | { | |
4959 | struct tls_addend *ta = &(fixP->tc_fix_data); | |
4960 | fixP->fx_offset = (fixP->fx_frag->fr_address + fixP->fx_where | |
4961 | - (ta->frag->fr_address + ta->offset)); | |
4962 | } | |
4963 | /* Fall through. */ | |
4964 | case BFD_RELOC_CKCORE_TLS_LE32: | |
4965 | case BFD_RELOC_CKCORE_TLS_LDO32: | |
4966 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
4967 | break; | |
4968 | case BFD_RELOC_32: | |
4969 | fixP->fx_r_type = BFD_RELOC_CKCORE_ADDR32; | |
4970 | /* Fall through. */ | |
4971 | case BFD_RELOC_16: | |
4972 | case BFD_RELOC_8: | |
4973 | if (fixP->fx_addsy == NULL) | |
4974 | { | |
4975 | if (fixP->fx_size == 4) | |
4976 | ; | |
4977 | else if (fixP->fx_size == 2 && val >= -32768 && val <= 32767) | |
4978 | ; | |
4979 | else if (fixP->fx_size == 1 && val >= -256 && val <= 255) | |
4980 | ; | |
4981 | else | |
4982 | abort (); | |
4983 | md_number_to_chars (buf, val, fixP->fx_size); | |
4984 | fixP->fx_done = 1; | |
4985 | } | |
4986 | break; | |
4987 | case BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2: | |
4988 | if (fixP->fx_addsy == 0 && val > -2 KB && val < 2 KB) | |
4989 | { | |
4990 | long nval = (val >> 1) & 0x7ff; | |
4991 | nval |= CSKYV1_INST_BSR; | |
4992 | csky_write_insn (buf, nval, 2); | |
4993 | fixP->fx_done = 1; | |
4994 | } | |
4995 | else | |
4996 | *valP = 0; | |
4997 | break; | |
4998 | case BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2: | |
4999 | if (fixP->fx_addsy == 0) | |
5000 | { | |
5001 | if (val >= -(1 << 26) && val < (1 << 26)) | |
5002 | { | |
5003 | unsigned int nval = ((val + fixP->fx_size) >> 1) & 0x3ffffff; | |
5004 | nval |= CSKYV2_INST_BSR32; | |
5005 | ||
5006 | csky_write_insn (buf, nval, 4); | |
5007 | } | |
5008 | /* If bsr32 cannot reach, | |
5009 | generate 'lrw r25,label;jsr r25' instead of 'jsri label'. */ | |
5010 | else if (IS_CSKY_ARCH_810 (mach_flag)) | |
5011 | { | |
5012 | howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type); | |
5013 | valueT opcode = csky_read_insn (buf, 4); | |
5014 | opcode = (opcode & howto->dst_mask) | CSKYV2_INST_JSRI_TO_LRW; | |
5015 | csky_write_insn (buf, opcode, 4); | |
5016 | opcode = CSKYV2_INST_JSR_R26; | |
5017 | csky_write_insn (buf + 4, opcode, 4); | |
5018 | } | |
5019 | fixP->fx_done = 1; | |
5020 | } | |
5021 | break; | |
5022 | ||
5023 | default: | |
5024 | { | |
5025 | valueT opcode; | |
5026 | offsetT min, max; | |
5027 | unsigned int issigned = 0; | |
5028 | ||
5029 | if (fixP->fx_addsy) | |
5030 | break; | |
5031 | ||
5032 | howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type); | |
5033 | if (howto == NULL) | |
5034 | { | |
5035 | if (fixP->fx_size == 4 | |
5036 | || (fixP->fx_size == 2 && val >= -32768 && val <= 32767) | |
5037 | || (fixP->fx_size == 1 && val >= -256 && val <= 255)) | |
5038 | { | |
5039 | md_number_to_chars (buf, val, fixP->fx_size); | |
5040 | fixP->fx_done = 1; | |
5041 | break; | |
5042 | } | |
5043 | else | |
5044 | abort (); | |
5045 | } | |
5046 | ||
5047 | if (IS_CSKY_V2 (mach_flag)) | |
5048 | val += fixP->fx_size; | |
5049 | ||
5050 | if (howto->rightshift == 2) | |
5051 | val += 2; | |
5052 | ||
5053 | val >>= howto->rightshift; | |
5054 | ||
5055 | switch (fixP->fx_r_type) | |
5056 | { | |
5057 | /* Offset is unsigned. */ | |
5058 | case BFD_RELOC_CKCORE_PCREL_IMM8BY4: | |
5059 | case BFD_RELOC_CKCORE_PCREL_IMM10BY4: | |
5060 | case BFD_RELOC_CKCORE_PCREL_IMM16BY4: | |
5061 | max = (offsetT) howto->dst_mask; | |
5062 | min = 0; | |
5063 | break; | |
5064 | /* lrw16. */ | |
5065 | case BFD_RELOC_CKCORE_PCREL_IMM7BY4: | |
5066 | if (do_extend_lrw) | |
5067 | max = (offsetT)((1 << (howto->bitsize + 1)) - 2); | |
5068 | else | |
5069 | max = (offsetT)((1 << howto->bitsize) - 1); | |
5070 | min = 0; | |
5071 | break; | |
5072 | /* flrws, flrwd: the offset bits are divided in two parts. */ | |
5073 | case BFD_RELOC_CKCORE_PCREL_FLRW_IMM8BY4: | |
5074 | max = (offsetT)((1 << howto->bitsize) - 1); | |
5075 | min = 0; | |
5076 | break; | |
5077 | /* Offset is signed. */ | |
5078 | default: | |
5079 | max = (offsetT)(howto->dst_mask >> 1); | |
5080 | min = - max - 1; | |
5081 | issigned = 1; | |
5082 | } | |
5083 | if (val < min || val > max) | |
5084 | { | |
5085 | csky_branch_report_error (fixP->fx_file, fixP->fx_line, | |
5086 | fixP->fx_addsy, val); | |
5087 | return; | |
5088 | } | |
5089 | opcode = csky_read_insn (buf, fixP->fx_size); | |
5090 | /* Clear redundant bits brought from the last | |
5091 | operation if there is any. */ | |
5092 | if (do_extend_lrw && (opcode & 0xfc00) == CSKYV2_INST_LRW16) | |
5093 | val &= 0xff; | |
5094 | else | |
5095 | val &= issigned ? (offsetT)(howto->dst_mask) : max; | |
5096 | ||
5097 | if (fixP->fx_r_type == BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4) | |
5098 | val = (val & 0xf) << 12; | |
5099 | ||
5100 | if (fixP->fx_size == 2 && (opcode & 0xfc00) == CSKYV2_INST_LRW16) | |
5101 | { | |
5102 | /* 8 bit offset lrw16. */ | |
5103 | if (val >= 0x80) | |
5104 | csky_write_insn (buf, | |
5105 | ((~val & 0x1f) | |
5106 | | ((~val & 0x60) << 3) | (opcode & 0xe0)), | |
5107 | fixP->fx_size); | |
5108 | /* 7 bit offset lrw16. */ | |
5109 | else | |
5110 | csky_write_insn (buf, | |
5111 | (val & 0x1f) | ((val & 0x60) << 3) | opcode, | |
5112 | fixP->fx_size); | |
5113 | } | |
5114 | else if (fixP->fx_size == 4 | |
5115 | && (opcode & 0xfe1ffe00) == CSKYV2_INST_FLRW) | |
5116 | csky_write_insn (buf, | |
5117 | ((val & 0xf) << 4) | ((val & 0xf0) << 17) | opcode, | |
5118 | fixP->fx_size); | |
5119 | else | |
5120 | csky_write_insn (buf, val | opcode, fixP->fx_size); | |
5121 | fixP->fx_done = 1; | |
5122 | break; | |
5123 | } | |
5124 | } | |
5125 | fixP->fx_addnumber = val; | |
5126 | } | |
5127 | ||
5128 | /* Translate internal representation of relocation info to BFD target | |
5129 | format. */ | |
5130 | ||
5131 | arelent * | |
5132 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixP) | |
5133 | { | |
5134 | arelent *rel; | |
5135 | ||
5136 | rel = xmalloc (sizeof (arelent)); | |
5137 | rel->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); | |
5138 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy); | |
5139 | rel->howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type); | |
5140 | rel->addend = fixP->fx_offset; | |
5141 | if (rel->howto == NULL) | |
5142 | { | |
5143 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
5144 | _("cannot represent `%s' relocation in object file"), | |
5145 | bfd_get_reloc_code_name (fixP->fx_r_type)); | |
5146 | ||
5147 | /* Set howto to a garbage value so that we can keep going. */ | |
5148 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
5149 | } | |
5150 | gas_assert (rel->howto != NULL); | |
5151 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; | |
5152 | return rel; | |
5153 | } | |
5154 | ||
5155 | /* Relax a fragment by scanning TC_GENERIC_RELAX_TABLE. */ | |
5156 | ||
5157 | long | |
5158 | csky_relax_frag (segT segment, fragS *fragP, long stretch) | |
5159 | { | |
5160 | const relax_typeS *this_type; | |
5161 | const relax_typeS *start_type; | |
5162 | relax_substateT next_state; | |
5163 | relax_substateT this_state; | |
5164 | offsetT growth; | |
5165 | offsetT aim; | |
5166 | addressT target; | |
5167 | addressT address; | |
5168 | symbolS *symbolP; | |
5169 | const relax_typeS *table; | |
5170 | ||
5171 | target = fragP->fr_offset; | |
5172 | address = fragP->fr_address; | |
5173 | table = TC_GENERIC_RELAX_TABLE; | |
5174 | this_state = fragP->fr_subtype; | |
5175 | start_type = this_type = table + this_state; | |
5176 | symbolP = fragP->fr_symbol; | |
5177 | ||
5178 | if (symbolP) | |
5179 | { | |
5180 | fragS *sym_frag; | |
5181 | ||
5182 | sym_frag = symbol_get_frag (symbolP); | |
5183 | ||
5184 | #ifndef DIFF_EXPR_OK | |
5185 | know (sym_frag != NULL); | |
5186 | #endif | |
5187 | know (S_GET_SEGMENT (symbolP) != absolute_section | |
5188 | || sym_frag == &zero_address_frag); | |
5189 | target += S_GET_VALUE (symbolP); | |
5190 | ||
5191 | /* If SYM_FRAG has yet to be reached on this pass, assume it | |
5192 | will move by STRETCH just as we did, unless there is an | |
5193 | alignment frag between here and SYM_FRAG. An alignment may | |
5194 | well absorb any STRETCH, and we don't want to choose a larger | |
5195 | branch insn by overestimating the needed reach of this | |
5196 | branch. It isn't critical to calculate TARGET exactly; We | |
5197 | know we'll be doing another pass if STRETCH is non-zero. */ | |
5198 | ||
5199 | if (stretch != 0 | |
5200 | && sym_frag->relax_marker != fragP->relax_marker | |
5201 | && S_GET_SEGMENT (symbolP) == segment) | |
5202 | { | |
5203 | fragS *f; | |
5204 | ||
5205 | /* Adjust stretch for any alignment frag. Note that if have | |
5206 | been expanding the earlier code, the symbol may be | |
5207 | defined in what appears to be an earlier frag. FIXME: | |
5208 | This doesn't handle the fr_subtype field, which specifies | |
5209 | a maximum number of bytes to skip when doing an | |
5210 | alignment. */ | |
5211 | for (f = fragP; f != NULL && f != sym_frag; f = f->fr_next) | |
5212 | { | |
5213 | if (f->fr_type == rs_align || f->fr_type == rs_align_code) | |
5214 | { | |
5215 | if (stretch < 0) | |
5216 | stretch = -((-stretch) | |
5217 | & ~((1 << (int) f->fr_offset) - 1)); | |
5218 | else | |
5219 | stretch &= ~((1 << (int) f->fr_offset) - 1); | |
5220 | } | |
5221 | if (stretch == 0) | |
5222 | break; | |
5223 | } | |
5224 | if (f != 0) | |
5225 | target += stretch; | |
5226 | } | |
5227 | } | |
5228 | ||
5229 | aim = target - address - fragP->fr_fix; | |
5230 | ||
5231 | /* If the fragP->fr_symbol is extern symbol, aim should be 0. */ | |
5232 | if (fragP->fr_symbol && S_GET_SEGMENT (symbolP) != segment) | |
5233 | aim = 0; | |
5234 | ||
5235 | if (aim < 0) | |
5236 | { | |
5237 | /* Look backwards. */ | |
5238 | for (next_state = this_type->rlx_more; next_state;) | |
5239 | if (aim >= this_type->rlx_backward) | |
5240 | next_state = 0; | |
5241 | else | |
5242 | { | |
5243 | /* Grow to next state. */ | |
5244 | this_state = next_state; | |
5245 | this_type = table + this_state; | |
5246 | next_state = this_type->rlx_more; | |
5247 | } | |
5248 | } | |
5249 | else | |
5250 | { | |
5251 | /* Look forwards. */ | |
5252 | for (next_state = this_type->rlx_more; next_state;) | |
5253 | if (aim <= this_type->rlx_forward) | |
5254 | next_state = 0; | |
5255 | else | |
5256 | { | |
5257 | /* Grow to next state. */ | |
5258 | this_state = next_state; | |
5259 | this_type = table + this_state; | |
5260 | next_state = this_type->rlx_more; | |
5261 | } | |
5262 | } | |
5263 | ||
5264 | growth = this_type->rlx_length - start_type->rlx_length; | |
5265 | if (growth != 0) | |
5266 | fragP->fr_subtype = this_state; | |
5267 | return growth; | |
5268 | } | |
5269 | ||
5270 | int | |
5271 | md_estimate_size_before_relax (fragS * fragp, | |
5272 | segT segtype) | |
5273 | { | |
5274 | switch (fragp->fr_subtype) | |
5275 | { | |
5276 | case COND_DISP10: | |
5277 | case COND_DISP16: | |
5278 | case SCOND_DISP10: | |
5279 | case SCOND_DISP16: | |
5280 | case UNCD_DISP10: | |
5281 | case UNCD_DISP16: | |
5282 | case JCOND_DISP10: | |
5283 | case JCOND_DISP16: | |
5284 | case JCOND_DISP32: | |
5285 | case JUNCD_DISP10: | |
5286 | case JUNCD_DISP16: | |
5287 | case JUNCD_DISP32: | |
5288 | case JCOMPZ_DISP16: | |
5289 | case JCOMPZ_DISP32: | |
5290 | case BSR_DISP26: | |
5291 | case LRW_DISP7: | |
5292 | case LRW2_DISP8: | |
5293 | case LRW_DISP16: | |
5294 | gas_assert (fragp->fr_symbol); | |
5295 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, segtype)) | |
5296 | while (csky_relax_table[fragp->fr_subtype].rlx_more > RELAX_OVERFLOW) | |
5297 | fragp->fr_subtype = csky_relax_table[fragp->fr_subtype].rlx_more; | |
5298 | return csky_relax_table[fragp->fr_subtype].rlx_length; | |
5299 | ||
5300 | /* C-SKY V1 relaxes. */ | |
5301 | case C (UNCD_JUMP, UNDEF_DISP): | |
5302 | case C (UNCD_JUMP_PIC, UNDEF_DISP): | |
5303 | if (!fragp->fr_symbol) | |
5304 | fragp->fr_subtype = C (UNCD_JUMP_S, DISP12); | |
5305 | else if (S_GET_SEGMENT (fragp->fr_symbol) == segtype) | |
5306 | fragp->fr_subtype = C (UNCD_JUMP_S, DISP12); | |
5307 | else | |
5308 | fragp->fr_subtype = C (UNCD_JUMP_S, UNDEF_WORD_DISP); | |
5309 | break; | |
5310 | ||
5311 | case C (COND_JUMP, UNDEF_DISP): | |
5312 | case C (COND_JUMP_PIC, UNDEF_DISP): | |
5313 | if (fragp->fr_symbol | |
5314 | && S_GET_SEGMENT (fragp->fr_symbol) == segtype) | |
5315 | /* Got a symbol and it's defined in this segment, become byte | |
5316 | sized. Maybe it will fix up. */ | |
5317 | fragp->fr_subtype = C (COND_JUMP_S, DISP12); | |
5318 | else if (fragp->fr_symbol) | |
5319 | /* It's got a segment, but it's not ours, so it will always be | |
5320 | long. */ | |
5321 | fragp->fr_subtype = C (COND_JUMP_S, UNDEF_WORD_DISP); | |
5322 | else | |
5323 | /* We know the abs value. */ | |
5324 | fragp->fr_subtype = C (COND_JUMP_S, DISP12); | |
5325 | break; | |
5326 | ||
5327 | case C (UNCD_JUMP, DISP12): | |
5328 | case C (UNCD_JUMP, DISP32): | |
5329 | case C (UNCD_JUMP, UNDEF_WORD_DISP): | |
5330 | case C (COND_JUMP, DISP12): | |
5331 | case C (COND_JUMP, DISP32): | |
5332 | case C (COND_JUMP, UNDEF_WORD_DISP): | |
5333 | case C (UNCD_JUMP_PIC, DISP12): | |
5334 | case C (UNCD_JUMP_PIC, DISP32): | |
5335 | case C (UNCD_JUMP_PIC, UNDEF_WORD_DISP): | |
5336 | case C (COND_JUMP_PIC, DISP12): | |
5337 | case C (COND_JUMP_PIC, DISP32): | |
5338 | case C (COND_JUMP_PIC, UNDEF_WORD_DISP): | |
5339 | case RELAX_OVERFLOW: | |
5340 | break; | |
5341 | ||
5342 | default: | |
5343 | abort (); | |
5344 | } | |
5345 | return csky_relax_table[fragp->fr_subtype].rlx_length; | |
5346 | } | |
5347 | ||
5348 | /* Parse opcode like: "op oprnd1, oprnd2, oprnd3". */ | |
5349 | ||
5350 | static void | |
5351 | csky_macro_md_assemble (const char *op, | |
5352 | const char *oprnd1, | |
5353 | const char *oprnd2, | |
5354 | const char *oprnd3) | |
5355 | { | |
5356 | char str[80]; | |
5357 | str[0] = '\0'; | |
5358 | strcat (str, op); | |
5359 | if (oprnd1 != NULL) | |
5360 | { | |
5361 | strcat (str, " "); | |
5362 | strcat (str, oprnd1); | |
5363 | if (oprnd2 != NULL) | |
5364 | { | |
5365 | strcat (str, ","); | |
5366 | strcat (str, oprnd2); | |
5367 | if (oprnd3 != NULL) | |
5368 | { | |
5369 | strcat (str, ","); | |
5370 | strcat (str, oprnd3); | |
5371 | } | |
5372 | } | |
5373 | } | |
5374 | md_assemble (str); | |
5375 | return; | |
5376 | } | |
5377 | ||
5378 | /* Get the string of operand. */ | |
5379 | ||
5380 | static int | |
5381 | csky_get_macro_operand (char *src_s, char *dst_s, char end_sym) | |
5382 | { | |
5383 | int nlen = 0; | |
5384 | while (ISSPACE (*src_s)) | |
5385 | ++src_s; | |
5386 | while (*src_s != end_sym) | |
5387 | dst_s[nlen++] = *(src_s++); | |
5388 | dst_s[nlen] = '\0'; | |
5389 | return nlen; | |
5390 | } | |
5391 | ||
5392 | /* idly 4 -> idly4. */ | |
5393 | ||
5394 | static void | |
5395 | csky_idly (void) | |
5396 | { | |
5397 | char *s = csky_insn.opcode_end; | |
5398 | if (!is_imm_over_range (&s, 4, 4, -1)) | |
5399 | { | |
5400 | as_bad (_("second operand must be 4")); | |
5401 | return; | |
5402 | } | |
5403 | csky_macro_md_assemble ("idly4", NULL, NULL, NULL); | |
5404 | return; | |
5405 | } | |
5406 | ||
5407 | /* rolc rd, 1 or roltc rd, 1 -> addc rd, rd. */ | |
5408 | ||
5409 | static void | |
5410 | csky_rolc (void) | |
5411 | { | |
5412 | char reg[10]; | |
5413 | char *s = csky_insn.opcode_end; | |
5414 | ||
5415 | s += csky_get_macro_operand (s, reg, ','); | |
5416 | ++s; | |
5417 | ||
5418 | if (is_imm_over_range (&s, 1, 1, -1)) | |
5419 | { | |
5420 | csky_macro_md_assemble ("addc", reg, reg, NULL); | |
5421 | return; | |
5422 | } | |
5423 | else | |
5424 | as_bad (_("second operand must be 1")); | |
5425 | } | |
5426 | ||
5427 | /* sxtrb0(1)(2) r1, rx -> xtbr0(1)(2) r1,rx; sextb r1. */ | |
5428 | ||
5429 | static void | |
5430 | csky_sxtrb (void) | |
5431 | { | |
5432 | char reg1[10]; | |
5433 | char reg2[10]; | |
5434 | ||
5435 | char *s = csky_insn.opcode_end; | |
5436 | s += csky_get_macro_operand (s, reg1, ','); | |
5437 | ++s; | |
5438 | csky_get_macro_operand (s, reg2, '\0'); | |
5439 | ||
5440 | csky_macro_md_assemble (csky_insn.macro->name + 1, reg1, reg2, NULL); | |
5441 | csky_macro_md_assemble ("sextb", reg1, NULL, NULL); | |
5442 | return; | |
5443 | } | |
5444 | ||
5445 | static void | |
5446 | csky_movtf (void) | |
5447 | { | |
5448 | char reg1[10]; | |
5449 | char reg2[10]; | |
5450 | char reg3[10]; | |
5451 | ||
5452 | char *s = csky_insn.opcode_end; | |
5453 | s += csky_get_macro_operand (s, reg1, ','); | |
5454 | ++s; | |
5455 | ||
5456 | s += csky_get_macro_operand (s, reg2, ','); | |
5457 | ++s; | |
5458 | ||
5459 | s += csky_get_macro_operand (s, reg3, '\0'); | |
5460 | ++s; | |
5461 | csky_macro_md_assemble ("movt", reg1, reg2, NULL); | |
5462 | csky_macro_md_assemble ("movf", reg1, reg3, NULL); | |
5463 | return; | |
5464 | } | |
5465 | ||
5466 | static bfd_boolean | |
5467 | get_macro_reg_vals (int *reg1, int *reg2, int *reg3) | |
5468 | { | |
5469 | int nlen; | |
5470 | char *s = csky_insn.opcode_end; | |
5471 | ||
5472 | *reg1 = csky_get_reg_val (s, &nlen); | |
5473 | s += nlen; | |
5474 | if (*s != ',') | |
5475 | { | |
5476 | csky_show_error (ERROR_MISSING_COMMA, 0, NULL, NULL); | |
5477 | return FALSE; | |
5478 | } | |
5479 | s++; | |
5480 | *reg2 = csky_get_reg_val (s, &nlen); | |
5481 | s += nlen; | |
5482 | if (*s != ',') | |
5483 | { | |
5484 | csky_show_error (ERROR_MISSING_COMMA, 0, NULL, NULL); | |
5485 | return FALSE; | |
5486 | } | |
5487 | s++; | |
5488 | *reg3 = csky_get_reg_val (s, &nlen); | |
5489 | s += nlen; | |
5490 | if (*s != '\0') | |
5491 | { | |
5492 | csky_show_error (ERROR_BAD_END, 0, NULL, NULL); | |
5493 | return FALSE; | |
5494 | } | |
5495 | if (*reg1 == -1 || *reg2 == -1 || *reg3 == -1) | |
5496 | { | |
5497 | as_bad (_("register number out of range")); | |
5498 | return FALSE; | |
5499 | } | |
5500 | if (*reg1 != *reg2) | |
5501 | { | |
5502 | as_bad (_("dest and source1 must be the same register")); | |
5503 | return FALSE; | |
5504 | } | |
5505 | if (*reg1 >= 15 || *reg3 >= 15) | |
5506 | { | |
5507 | as_bad (_("64-bit operator src/dst register must be less than 15")); | |
5508 | return FALSE; | |
5509 | } | |
5510 | return TRUE; | |
5511 | } | |
5512 | ||
5513 | /* addc64 rx, rx, ry -> cmplt rx, rx, addc rx, ry, addc rx+1, ry+1. */ | |
5514 | ||
5515 | static void | |
5516 | csky_addc64 (void) | |
5517 | { | |
5518 | int reg1; | |
5519 | int reg2; | |
5520 | int reg3; | |
5521 | ||
5522 | if (!get_macro_reg_vals (®1, ®2, ®3)) | |
5523 | return; | |
5524 | csky_macro_md_assemble ("cmplt", | |
5525 | csky_general_reg[reg1], | |
5526 | csky_general_reg[reg1], | |
5527 | NULL); | |
5528 | csky_macro_md_assemble ("addc", | |
5529 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], | |
5530 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], | |
5531 | NULL); | |
5532 | csky_macro_md_assemble ("addc", | |
5533 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], | |
5534 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], | |
5535 | NULL); | |
5536 | return; | |
5537 | } | |
5538 | ||
5539 | /* subc64 rx, rx, ry -> cmphs rx, rx, subc rx, ry, subc rx+1, ry+1. */ | |
5540 | ||
5541 | static void | |
5542 | csky_subc64 (void) | |
5543 | { | |
5544 | int reg1; | |
5545 | int reg2; | |
5546 | int reg3; | |
5547 | ||
5548 | if (!get_macro_reg_vals (®1, ®2, ®3)) | |
5549 | return; | |
5550 | csky_macro_md_assemble ("cmphs", | |
5551 | csky_general_reg[reg1], | |
5552 | csky_general_reg[reg1], | |
5553 | NULL); | |
5554 | csky_macro_md_assemble ("subc", | |
5555 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], | |
5556 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], | |
5557 | NULL); | |
5558 | csky_macro_md_assemble ("subc", | |
5559 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], | |
5560 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], | |
5561 | NULL); | |
5562 | return; | |
5563 | } | |
5564 | ||
5565 | /* or64 rx, rx, ry -> or rx, ry, or rx+1, ry+1. */ | |
5566 | ||
5567 | static void | |
5568 | csky_or64 (void) | |
5569 | { | |
5570 | int reg1; | |
5571 | int reg2; | |
5572 | int reg3; | |
5573 | ||
5574 | if (!get_macro_reg_vals (®1, ®2, ®3)) | |
5575 | return; | |
5576 | csky_macro_md_assemble ("or", | |
5577 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], | |
5578 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], | |
5579 | NULL); | |
5580 | csky_macro_md_assemble ("or", | |
5581 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], | |
5582 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], | |
5583 | NULL); | |
5584 | return; | |
5585 | } | |
5586 | ||
5587 | /* xor64 rx, rx, ry -> xor rx, ry, xor rx+1, ry+1. */ | |
5588 | ||
5589 | static void | |
5590 | csky_xor64 (void) | |
5591 | { | |
5592 | int reg1; | |
5593 | int reg2; | |
5594 | int reg3; | |
5595 | ||
5596 | if (!get_macro_reg_vals (®1, ®2, ®3)) | |
5597 | return; | |
5598 | csky_macro_md_assemble ("xor", | |
5599 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], | |
5600 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], | |
5601 | NULL); | |
5602 | csky_macro_md_assemble ("xor", | |
5603 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], | |
5604 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], | |
5605 | NULL); | |
5606 | return; | |
5607 | } | |
5608 | ||
5609 | /* The following are V2 macro instructions. */ | |
5610 | ||
5611 | /* neg rd -> not rd, rd; addi rd, 1. */ | |
5612 | ||
5613 | static void | |
5614 | csky_neg (void) | |
5615 | { | |
5616 | char reg1[10]; | |
5617 | ||
5618 | char *s = csky_insn.opcode_end; | |
5619 | s += csky_get_macro_operand (s, reg1, '\0'); | |
5620 | ++s; | |
5621 | ||
5622 | csky_macro_md_assemble ("not", reg1, reg1, NULL); | |
5623 | csky_macro_md_assemble ("addi", reg1, "1", NULL); | |
5624 | return; | |
5625 | } | |
5626 | ||
5627 | /* rsubi rd, imm16 -> not rd; addi rd, imm16 + 1 */ | |
5628 | ||
5629 | static void | |
5630 | csky_rsubi (void) | |
5631 | { | |
5632 | char reg1[10]; | |
5633 | char str_imm16[20]; | |
5634 | unsigned int imm16 = 0; | |
5635 | expressionS e; | |
5636 | char *s = csky_insn.opcode_end; | |
5637 | s += csky_get_macro_operand (s, reg1, ','); | |
5638 | ++s; | |
5639 | ||
5640 | s = parse_exp (s, &e); | |
5641 | if (e.X_op == O_constant) | |
5642 | imm16 = e.X_add_number; | |
5643 | else | |
5644 | csky_show_error (ERROR_IMM_ILLEGAL, 2, NULL, NULL); | |
5645 | ||
5646 | sprintf (str_imm16, "%d", imm16 + 1); | |
5647 | ||
5648 | csky_macro_md_assemble ("not", reg1, reg1, NULL); | |
5649 | csky_macro_md_assemble ("addi", reg1, str_imm16, NULL); | |
5650 | return; | |
5651 | } | |
5652 | ||
5653 | /* Such as: asrc rd -> asrc rd, rd, 1. */ | |
5654 | ||
5655 | static void | |
5656 | csky_arith (void) | |
5657 | { | |
5658 | char reg1[10]; | |
5659 | char *s = csky_insn.opcode_end; | |
5660 | s += csky_get_macro_operand (s, reg1, '\0'); | |
5661 | ++s; | |
5662 | csky_macro_md_assemble (csky_insn.macro->name, reg1, reg1, "1"); | |
5663 | return; | |
5664 | } | |
5665 | ||
5666 | /* decne rd -> if ck802: subi rd, 1; cmpnei rd, 0. | |
5667 | else: decne rd, rd, 1 */ | |
5668 | ||
5669 | static void | |
5670 | csky_decne (void) | |
5671 | { | |
5672 | char reg1[10]; | |
5673 | char *s = csky_insn.opcode_end; | |
5674 | s += csky_get_macro_operand (s, reg1, '\0'); | |
5675 | ++s; | |
5676 | if (IS_CSKY_ARCH_802 (mach_flag)) | |
5677 | { | |
5678 | csky_macro_md_assemble ("subi", reg1, "1", NULL); | |
5679 | csky_macro_md_assemble ("cmpnei", reg1, "0", NULL); | |
5680 | } | |
5681 | else | |
5682 | csky_macro_md_assemble ("decne", reg1, reg1, "1"); | |
5683 | return; | |
5684 | } | |
5685 | ||
5686 | /* If -mnolrw, lrw rd, imm -> movih rd, imm_hi16; ori rd, imm_lo16. */ | |
5687 | ||
5688 | static void | |
5689 | csky_lrw (void) | |
5690 | { | |
5691 | char reg1[10]; | |
5692 | char imm[40]; | |
5693 | char imm_hi16[40]; | |
5694 | char imm_lo16[40]; | |
5695 | ||
5696 | char *s = csky_insn.opcode_end; | |
5697 | s += csky_get_macro_operand (s, reg1, ','); | |
5698 | ++s; | |
5699 | s += csky_get_macro_operand (s, imm, '\0'); | |
5700 | ++s; | |
5701 | ||
5702 | imm_hi16[0] = '\0'; | |
5703 | strcat (imm_hi16, "("); | |
5704 | strcat (imm_hi16, imm); | |
5705 | strcat (imm_hi16, ") >> 16"); | |
5706 | imm_lo16[0] = '\0'; | |
5707 | strcat (imm_lo16, "("); | |
5708 | strcat (imm_lo16, imm); | |
5709 | strcat (imm_lo16, ") & 0xffff"); | |
5710 | ||
5711 | csky_macro_md_assemble ("movih", reg1, imm_hi16, NULL); | |
5712 | csky_macro_md_assemble ("ori", reg1, reg1, imm_lo16); | |
5713 | ||
5714 | return; | |
5715 | } | |
5716 | ||
5717 | /* The following are worker functions for C-SKY v1. */ | |
5718 | ||
5719 | bfd_boolean | |
5720 | v1_work_lrw (void) | |
5721 | { | |
5722 | int reg; | |
5723 | int output_literal = csky_insn.val[1]; | |
5724 | ||
5725 | reg = csky_insn.val[0]; | |
5726 | csky_insn.isize = 2; | |
5727 | csky_insn.output = frag_more (2); | |
5728 | if (csky_insn.e1.X_op == O_constant | |
5729 | && csky_insn.e1.X_add_number <= 0x7f | |
5730 | && csky_insn.e1.X_add_number >= 0) | |
5731 | /* lrw to movi. */ | |
5732 | csky_insn.inst = 0x6000 | reg | (csky_insn.e1.X_add_number << 4); | |
5733 | else | |
5734 | { | |
5735 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
5736 | csky_insn.inst |= reg << 8; | |
5737 | if (output_literal) | |
5738 | { | |
5739 | int n = enter_literal (&csky_insn.e1, 0, 0, 0); | |
5740 | ||
5741 | /* Create a reference to pool entry. */ | |
5742 | csky_insn.e1.X_op = O_symbol; | |
5743 | csky_insn.e1.X_add_symbol = poolsym; | |
5744 | csky_insn.e1.X_add_number = n << 2; | |
5745 | } | |
5746 | ||
5747 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
5748 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
5749 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
5750 | { | |
5751 | literal_insn_offset->tls_addend.frag = frag_now; | |
5752 | literal_insn_offset->tls_addend.offset | |
5753 | = (csky_insn.output | |
5754 | - literal_insn_offset->tls_addend.frag->fr_literal); | |
5755 | } | |
5756 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, 2, | |
5757 | &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM8BY4); | |
5758 | } | |
5759 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
5760 | ||
5761 | return TRUE; | |
5762 | } | |
5763 | ||
5764 | bfd_boolean | |
5765 | v1_work_fpu_fo (void) | |
5766 | { | |
5767 | int i = 0; | |
5768 | int inst; | |
5769 | int greg = -1; | |
5770 | char buff[50]; | |
5771 | struct csky_opcode_info *opinfo = NULL; | |
5772 | ||
5773 | if (csky_insn.isize == 4) | |
5774 | opinfo = &csky_insn.opcode->op32[csky_insn.opcode_idx]; | |
5775 | else if (csky_insn.isize == 2) | |
5776 | opinfo = &csky_insn.opcode->op16[csky_insn.opcode_idx]; | |
5777 | ||
5778 | /* Firstly, get general reg. */ | |
5779 | for (i = 0;i < opinfo->operand_num; i++) | |
5780 | if (opinfo->oprnd.oprnds[i].type == OPRND_TYPE_GREG0_15) | |
5781 | greg = csky_insn.val[i]; | |
5782 | gas_assert (greg != -1); | |
5783 | ||
5784 | /* Secondly, get float inst. */ | |
5785 | csky_generate_insn (); | |
5786 | inst = csky_insn.inst; | |
5787 | ||
5788 | /* Now get greg and inst, we can write instruction to floating unit. */ | |
5789 | sprintf (buff, "lrw %s,0x%x", csky_general_reg[greg], inst); | |
5790 | md_assemble (buff); | |
5791 | sprintf (buff, "cpwir %s", csky_general_reg[greg]); | |
5792 | md_assemble (buff); | |
5793 | ||
5794 | return FALSE; | |
5795 | } | |
5796 | ||
5797 | bfd_boolean | |
5798 | v1_work_fpu_fo_fc (void) | |
5799 | { | |
5800 | int i = 0; | |
5801 | int inst; | |
5802 | int greg = -1; | |
5803 | char buff[50]; | |
5804 | struct csky_opcode_info *opinfo = NULL; | |
5805 | ||
5806 | if (csky_insn.isize == 4) | |
5807 | opinfo = &csky_insn.opcode->op32[csky_insn.opcode_idx]; | |
5808 | else if (csky_insn.isize == 2) | |
5809 | opinfo = &csky_insn.opcode->op16[csky_insn.opcode_idx]; | |
5810 | ||
5811 | /* Firstly, get general reg. */ | |
5812 | for (i = 0;i < opinfo->operand_num; i++) | |
5813 | if (opinfo->oprnd.oprnds[i].type == OPRND_TYPE_GREG0_15) | |
5814 | greg = csky_insn.val[i]; | |
5815 | gas_assert (greg != -1); | |
5816 | ||
5817 | /* Secondly, get float inst. */ | |
5818 | csky_generate_insn (); | |
5819 | inst = csky_insn.inst; | |
5820 | ||
5821 | /* Now get greg and inst, we can write instruction to floating unit. */ | |
5822 | sprintf (buff, "lrw %s,0x%x", csky_general_reg[greg], inst); | |
5823 | md_assemble (buff); | |
5824 | sprintf (buff, "cpwir %s", csky_general_reg[greg]); | |
5825 | md_assemble (buff); | |
5826 | sprintf (buff, "cprc"); | |
5827 | md_assemble (buff); | |
5828 | ||
5829 | return FALSE; | |
5830 | } | |
5831 | ||
5832 | bfd_boolean | |
5833 | v1_work_fpu_write (void) | |
5834 | { | |
5835 | int greg; | |
5836 | int freg; | |
5837 | char buff[50]; | |
5838 | ||
5839 | greg = csky_insn.val[0]; | |
5840 | freg = csky_insn.val[1]; | |
5841 | ||
5842 | /* Now get greg and freg, we can write instruction to floating unit. */ | |
5843 | sprintf (buff, "cpwgr %s,%s", csky_general_reg[greg], csky_cp_reg[freg]); | |
5844 | md_assemble (buff); | |
5845 | ||
5846 | return FALSE; | |
5847 | } | |
5848 | ||
5849 | bfd_boolean | |
5850 | v1_work_fpu_read (void) | |
5851 | { | |
5852 | int greg; | |
5853 | int freg; | |
5854 | char buff[50]; | |
5855 | ||
5856 | greg = csky_insn.val[0]; | |
5857 | freg = csky_insn.val[1]; | |
5858 | /* Now get greg and freg, we can write instruction to floating unit. */ | |
5859 | sprintf (buff, "cprgr %s,%s", csky_general_reg[greg], csky_cp_reg[freg]); | |
5860 | md_assemble (buff); | |
5861 | ||
5862 | return FALSE; | |
5863 | } | |
5864 | ||
5865 | bfd_boolean | |
5866 | v1_work_fpu_writed (void) | |
5867 | { | |
5868 | int greg; | |
5869 | int freg; | |
5870 | char buff[50]; | |
5871 | ||
5872 | greg = csky_insn.val[0]; | |
5873 | freg = csky_insn.val[1]; | |
5874 | ||
5875 | if (greg & 0x1) | |
5876 | { | |
5877 | as_bad (_("even register number required")); | |
5878 | return FALSE; | |
5879 | } | |
5880 | /* Now get greg and freg, we can write instruction to floating unit. */ | |
5881 | if (target_big_endian) | |
5882 | sprintf (buff, "cpwgr %s,%s", | |
5883 | csky_general_reg[greg + 1], csky_cp_reg[freg]); | |
5884 | else | |
5885 | sprintf (buff, "cpwgr %s,%s", | |
5886 | csky_general_reg[greg], csky_cp_reg[freg]); | |
5887 | md_assemble (buff); | |
5888 | if (target_big_endian) | |
5889 | sprintf (buff, "cpwgr %s,%s", | |
5890 | csky_general_reg[greg], csky_cp_reg[freg + 1]); | |
5891 | else | |
5892 | sprintf (buff, "cpwgr %s,%s", | |
5893 | csky_general_reg[greg + 1], csky_cp_reg[freg + 1]); | |
5894 | md_assemble (buff); | |
5895 | ||
5896 | return FALSE; | |
5897 | } | |
5898 | ||
5899 | bfd_boolean | |
5900 | v1_work_fpu_readd (void) | |
5901 | { | |
5902 | int greg; | |
5903 | int freg; | |
5904 | char buff[50]; | |
5905 | ||
5906 | greg = csky_insn.val[0]; | |
5907 | freg = csky_insn.val[1]; | |
5908 | ||
5909 | if (greg & 0x1) | |
5910 | { | |
5911 | as_bad (_("even register number required")); | |
5912 | return FALSE; | |
5913 | } | |
5914 | /* Now get greg and freg, we can write instruction to floating unit. */ | |
5915 | if (target_big_endian) | |
5916 | sprintf (buff, "cprgr %s,%s", | |
5917 | csky_general_reg[greg + 1], csky_cp_reg[freg]); | |
5918 | else | |
5919 | sprintf (buff, "cprgr %s,%s", | |
5920 | csky_general_reg[greg], csky_cp_reg[freg]); | |
5921 | md_assemble (buff); | |
5922 | if (target_big_endian) | |
5923 | sprintf (buff, "cprgr %s,%s", | |
5924 | csky_general_reg[greg], csky_cp_reg[freg + 1]); | |
5925 | else | |
5926 | sprintf (buff, "cprgr %s,%s", | |
5927 | csky_general_reg[greg + 1], csky_cp_reg[freg + 1]); | |
5928 | md_assemble (buff); | |
5929 | ||
5930 | return FALSE; | |
5931 | } | |
5932 | ||
5933 | /* The following are for csky pseudo handling. */ | |
5934 | ||
5935 | bfd_boolean | |
5936 | v1_work_jbsr (void) | |
5937 | { | |
5938 | csky_insn.output = frag_more (2); | |
5939 | if (do_force2bsr) | |
5940 | /* Generate fixup BFD_RELOC_CKCORE_PCREL_IMM11BY2. */ | |
5941 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
5942 | 2, & csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM11BY2); | |
5943 | else | |
5944 | { | |
5945 | /* Using jsri instruction. */ | |
5946 | const char *name = "jsri"; | |
5947 | csky_insn.opcode = (struct csky_opcode *) | |
5948 | hash_find (csky_opcodes_hash, name); | |
5949 | csky_insn.opcode_idx = 0; | |
5950 | csky_insn.isize = 2; | |
5951 | ||
5952 | int n = enter_literal (&csky_insn.e1, 1, 0, 0); | |
5953 | ||
5954 | /* Create a reference to pool entry. */ | |
5955 | csky_insn.e1.X_op = O_symbol; | |
5956 | csky_insn.e1.X_add_symbol = poolsym; | |
5957 | csky_insn.e1.X_add_number = n << 2; | |
5958 | ||
5959 | /* Generate fixup BFD_RELOC_CKCORE_PCREL_IMM8BY4. */ | |
5960 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
5961 | 2, & csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM8BY4); | |
5962 | ||
5963 | if (csky_insn.e1.X_op != O_absent && do_jsri2bsr) | |
5964 | /* Generate fixup BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2. */ | |
5965 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
5966 | 2, & (litpool + (csky_insn.e1.X_add_number >> 2))->e, | |
5967 | 1, BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2); | |
5968 | } | |
5969 | csky_generate_insn (); | |
5970 | ||
5971 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
5972 | ||
5973 | return TRUE; | |
5974 | } | |
5975 | ||
5976 | /* The following are worker functions for csky v2 instruction handling. */ | |
5977 | ||
5978 | /* For nie/nir/ipush/ipop. */ | |
5979 | ||
5980 | bfd_boolean | |
5981 | v2_work_istack (void) | |
5982 | { | |
5983 | if (!do_intr_stack) | |
5984 | { | |
5985 | csky_show_error (ERROR_OPCODE_ILLEGAL, 0, NULL, NULL); | |
5986 | return FALSE; | |
5987 | } | |
5988 | csky_insn.output = frag_more (csky_insn.isize); | |
5989 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
5990 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
5991 | return TRUE; | |
5992 | } | |
5993 | ||
5994 | bfd_boolean | |
5995 | v2_work_btsti (void) | |
5996 | { | |
5997 | if (!do_extend_lrw | |
5998 | && (csky_insn.flag_force == INSN_OPCODE16F | |
5999 | || IS_CSKY_ARCH_801 (mach_flag))) | |
6000 | { | |
6001 | csky_show_error (ERROR_OPCODE_ILLEGAL, 0, NULL, NULL); | |
6002 | return FALSE; | |
6003 | } | |
6004 | if (!do_extend_lrw && csky_insn.isize == 2) | |
6005 | csky_insn.isize = 4; | |
6006 | /* Generate relax or reloc if necessary. */ | |
6007 | csky_generate_frags (); | |
6008 | /* Generate the insn by mask. */ | |
6009 | csky_generate_insn (); | |
6010 | /* Write inst to frag. */ | |
6011 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6012 | return TRUE; | |
6013 | } | |
6014 | ||
6015 | bfd_boolean | |
6016 | v2_work_addi (void) | |
6017 | { | |
6018 | csky_insn.isize = 2; | |
6019 | if (csky_insn.number == 2) | |
6020 | { | |
6021 | if (csky_insn.val[0] == 14 | |
6022 | && csky_insn.val[1] >= 0 && csky_insn.val[1] <= 0x1fc | |
6023 | && (csky_insn.val[1] & 0x3) == 0 | |
6024 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6025 | { | |
6026 | /* addi sp, sp, imm. */ | |
6027 | csky_insn.inst = 0x1400 | ((csky_insn.val[1] >> 2) & 0x1f); | |
6028 | csky_insn.inst |= (csky_insn.val[1] << 1) & 0x300; | |
6029 | csky_insn.output = frag_more (2); | |
6030 | } | |
6031 | else if (csky_insn.val[0] < 8 | |
6032 | && csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x100 | |
6033 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6034 | { | |
6035 | csky_insn.inst = 0x2000 | (csky_insn.val[0] << 8); | |
6036 | csky_insn.inst |= (csky_insn.val[1] - 1); | |
6037 | csky_insn.output = frag_more (2); | |
6038 | } | |
6039 | else if (csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x10000 | |
6040 | && csky_insn.flag_force != INSN_OPCODE16F | |
6041 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6042 | { | |
6043 | csky_insn.inst = 0xe4000000 | (csky_insn.val[0] << 21); | |
6044 | csky_insn.inst |= csky_insn.val[0] << 16; | |
6045 | csky_insn.inst |= (csky_insn.val[1] - 1); | |
6046 | csky_insn.isize = 4; | |
6047 | csky_insn.output = frag_more (4); | |
6048 | } | |
6049 | else | |
6050 | { | |
6051 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, | |
6052 | csky_insn.opcode_end, NULL); | |
6053 | return FALSE; | |
6054 | } | |
6055 | } | |
6056 | else if (csky_insn.number == 3) | |
6057 | { | |
6058 | if (csky_insn.val[0] == 14 | |
6059 | && csky_insn.val[1] == 14 | |
6060 | && csky_insn.val[2] >= 0 && csky_insn.val[2] <= 0x1fc | |
6061 | && (csky_insn.val[2] & 0x3) == 0 | |
6062 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6063 | { | |
6064 | csky_insn.inst = 0x1400 | ((csky_insn.val[2] >> 2) & 0x1f); | |
6065 | csky_insn.inst |= (csky_insn.val[2] << 1) & 0x300; | |
6066 | csky_insn.output = frag_more (2); | |
6067 | } | |
6068 | else if (csky_insn.val[0] < 8 | |
6069 | && csky_insn.val[1] == 14 | |
6070 | && csky_insn.val[2] >= 0 && csky_insn.val[2] <= 0x3fc | |
6071 | && (csky_insn.val[2] & 0x3) == 0 | |
6072 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6073 | { | |
6074 | csky_insn.inst = 0x1800 | (csky_insn.val[0] << 8); | |
6075 | csky_insn.inst |= csky_insn.val[2] >> 2; | |
6076 | csky_insn.output = frag_more (2); | |
6077 | } | |
6078 | else if (csky_insn.val[0] < 8 | |
6079 | && csky_insn.val[0] == csky_insn.val[1] | |
6080 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x100 | |
6081 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6082 | { | |
6083 | csky_insn.inst = 0x2000 | (csky_insn.val[0] << 8); | |
6084 | csky_insn.inst |= (csky_insn.val[2] - 1); | |
6085 | csky_insn.output = frag_more (2); | |
6086 | } | |
6087 | else if (csky_insn.val[0] < 8 | |
6088 | && csky_insn.val[1] < 8 | |
6089 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x8 | |
6090 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6091 | { | |
6092 | csky_insn.inst = 0x5802 | (csky_insn.val[0] << 5); | |
6093 | csky_insn.inst |= csky_insn.val[1] << 8; | |
6094 | csky_insn.inst |= (csky_insn.val[2] - 1) << 2; | |
6095 | csky_insn.output = frag_more (2); | |
6096 | } | |
6097 | else if (csky_insn.val[1] == 28 | |
6098 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x40000 | |
6099 | && csky_insn.flag_force != INSN_OPCODE16F | |
6100 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6101 | { | |
6102 | csky_insn.inst = 0xcc1c0000 | (csky_insn.val[0] << 21); | |
6103 | csky_insn.isize = 4; | |
6104 | csky_insn.output = frag_more (4); | |
6105 | if (insn_reloc == BFD_RELOC_CKCORE_GOTOFF) | |
6106 | { | |
6107 | fix_new_exp (frag_now, csky_insn.output-frag_now->fr_literal, | |
6108 | 4, &csky_insn.e1, 0, BFD_RELOC_CKCORE_GOTOFF_IMM18); | |
6109 | } | |
6110 | else | |
6111 | csky_insn.inst |= (csky_insn.val[2] - 1); | |
6112 | } | |
6113 | else if (csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x1000 | |
6114 | && csky_insn.flag_force != INSN_OPCODE16F | |
6115 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6116 | { | |
6117 | csky_insn.inst = 0xe4000000 | (csky_insn.val[0] << 21); | |
6118 | csky_insn.inst |= csky_insn.val[1] << 16; | |
6119 | csky_insn.inst |= (csky_insn.val[2] - 1); | |
6120 | csky_insn.isize = 4; | |
6121 | csky_insn.output = frag_more (4); | |
6122 | } | |
6123 | else | |
6124 | { | |
6125 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, | |
6126 | (char *)csky_insn.opcode_end, NULL); | |
6127 | return FALSE; | |
6128 | } | |
6129 | } | |
6130 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6131 | ||
6132 | return TRUE; | |
6133 | } | |
6134 | ||
6135 | bfd_boolean | |
6136 | v2_work_subi (void) | |
6137 | { | |
6138 | csky_insn.isize = 2; | |
6139 | if (csky_insn.number == 2) | |
6140 | { | |
6141 | if (csky_insn.val[0] == 14 | |
6142 | && csky_insn.val[1] >= 0 && csky_insn.val[2] <= 0x1fc | |
6143 | && (csky_insn.val[1] & 0x3) == 0 | |
6144 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6145 | { | |
6146 | csky_insn.inst = 0x1420 | ((csky_insn.val[1] >> 2) & 0x1f); | |
6147 | csky_insn.inst |= (csky_insn.val[1] << 1) & 0x300; | |
6148 | } | |
6149 | else if (csky_insn.val[0] < 8 | |
6150 | && csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x100 | |
6151 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6152 | { | |
6153 | csky_insn.inst = 0x2800 | (csky_insn.val[0] << 8); | |
6154 | csky_insn.inst |= (csky_insn.val[1] - 1); | |
6155 | } | |
6156 | else if (csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x10000 | |
6157 | && csky_insn.flag_force != INSN_OPCODE16F | |
6158 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6159 | { | |
6160 | csky_insn.inst = 0xe4001000 | (csky_insn.val[0] << 21); | |
6161 | csky_insn.inst |= csky_insn.val[0] << 16; | |
6162 | csky_insn.inst |= (csky_insn.val[1] - 1); | |
6163 | csky_insn.isize = 4; | |
6164 | } | |
6165 | else | |
6166 | { | |
6167 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, | |
6168 | (char *)csky_insn.opcode_end, NULL); | |
6169 | return FALSE; | |
6170 | } | |
6171 | } | |
6172 | else if (csky_insn.number == 3) | |
6173 | { | |
6174 | if (csky_insn.val[0] == 14 | |
6175 | && csky_insn.val[1] == 14 | |
6176 | && csky_insn.val[2] >= 0 && csky_insn.val[2] <= 0x1fc | |
6177 | && (csky_insn.val[2] & 0x3) == 0 | |
6178 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6179 | { | |
6180 | csky_insn.inst = 0x1420 | ((csky_insn.val[2] >> 2) & 0x1f); | |
6181 | csky_insn.inst |= (csky_insn.val[2] << 1) & 0x300; | |
6182 | } | |
6183 | ||
6184 | else if (csky_insn.val[0] < 8 | |
6185 | && csky_insn.val[0] == csky_insn.val[1] | |
6186 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x100 | |
6187 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6188 | { | |
6189 | csky_insn.inst = 0x2800 | (csky_insn.val[0] << 8); | |
6190 | csky_insn.inst |= (csky_insn.val[2] - 1); | |
6191 | } | |
6192 | else if (csky_insn.val[0] < 8 | |
6193 | && csky_insn.val[1] < 8 | |
6194 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x8 | |
6195 | && csky_insn.flag_force != INSN_OPCODE32F) | |
6196 | { | |
6197 | csky_insn.inst = 0x5803 | (csky_insn.val[0] << 5); | |
6198 | csky_insn.inst |= csky_insn.val[1] << 8; | |
6199 | csky_insn.inst |= (csky_insn.val[2] - 1) << 2; | |
6200 | } | |
6201 | else if (csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x1000 | |
6202 | && csky_insn.flag_force != INSN_OPCODE16F | |
6203 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6204 | { | |
6205 | csky_insn.inst = 0xe4001000 | (csky_insn.val[0] << 21); | |
6206 | csky_insn.inst |= csky_insn.val[1] << 16; | |
6207 | csky_insn.inst |= (csky_insn.val[2] - 1); | |
6208 | csky_insn.isize = 4; | |
6209 | } | |
6210 | else | |
6211 | { | |
6212 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, | |
6213 | (char *)csky_insn.opcode_end, NULL); | |
6214 | return FALSE; | |
6215 | } | |
6216 | } | |
6217 | csky_insn.output = frag_more (csky_insn.isize); | |
6218 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6219 | ||
6220 | return TRUE; | |
6221 | } | |
6222 | ||
6223 | bfd_boolean | |
6224 | v2_work_add_sub (void) | |
6225 | { | |
6226 | if (csky_insn.number == 3 | |
6227 | && (csky_insn.val[0] == csky_insn.val[1] | |
6228 | || csky_insn.val[0] == csky_insn.val[2]) | |
6229 | && csky_insn.val[0] <= 15 | |
6230 | && csky_insn.val[1] <= 15 | |
6231 | && csky_insn.val[2] <= 15) | |
6232 | { | |
6233 | if (!strstr (csky_insn.opcode->mnemonic, "sub") | |
6234 | || csky_insn.val[0] == csky_insn.val[1]) | |
6235 | { | |
6236 | csky_insn.opcode_idx = 0; | |
6237 | csky_insn.isize = 2; | |
6238 | if (csky_insn.val[0] == csky_insn.val[1]) | |
6239 | csky_insn.val[1] = csky_insn.val[2]; | |
6240 | ||
6241 | csky_insn.number = 2; | |
6242 | ||
6243 | } | |
6244 | } | |
6245 | if (csky_insn.isize == 4 | |
6246 | && IS_CSKY_ARCH_801 (mach_flag)) | |
6247 | { | |
6248 | if (csky_insn.number == 3) | |
6249 | { | |
6250 | if (csky_insn.val[0] > 7) | |
6251 | csky_show_error (ERROR_REG_OVER_RANGE, 1, | |
6252 | (void *)(long)csky_insn.val[0], NULL); | |
6253 | if (csky_insn.val[1] > 7) | |
6254 | csky_show_error (ERROR_REG_OVER_RANGE, 2, | |
6255 | (void *)(long)csky_insn.val[1], NULL); | |
6256 | if (csky_insn.val[2] > 7) | |
6257 | csky_show_error (ERROR_REG_OVER_RANGE, 3, | |
6258 | (void *)(long)csky_insn.val[2], NULL); | |
6259 | } | |
6260 | else | |
6261 | { | |
6262 | if (csky_insn.val[0] > 15) | |
6263 | csky_show_error (ERROR_REG_OVER_RANGE, 1, | |
6264 | (void *)(long)csky_insn.val[0], NULL); | |
6265 | if (csky_insn.val[1] > 15) | |
6266 | csky_show_error (ERROR_REG_OVER_RANGE, 2, | |
6267 | (void *)(long)csky_insn.val[1], NULL); | |
6268 | } | |
6269 | return FALSE; | |
6270 | } | |
6271 | /* sub rz, rx. */ | |
6272 | /* Generate relax or reloc if necessary. */ | |
6273 | csky_generate_frags (); | |
6274 | /* Generate the insn by mask. */ | |
6275 | csky_generate_insn (); | |
6276 | /* Write inst to frag. */ | |
6277 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6278 | return TRUE; | |
6279 | } | |
6280 | ||
6281 | bfd_boolean | |
6282 | v2_work_rotlc (void) | |
6283 | { | |
6284 | const char *name = "addc"; | |
6285 | csky_insn.opcode | |
6286 | = (struct csky_opcode *) hash_find (csky_opcodes_hash, name); | |
6287 | csky_insn.opcode_idx = 0; | |
6288 | if (csky_insn.isize == 2) | |
6289 | { | |
6290 | /* addc rz, rx. */ | |
6291 | csky_insn.number = 2; | |
6292 | csky_insn.val[1] = csky_insn.val[0]; | |
6293 | } | |
6294 | else | |
6295 | { | |
6296 | csky_insn.number = 3; | |
6297 | /* addc rz, rx, ry. */ | |
6298 | csky_insn.val[1] = csky_insn.val[0]; | |
6299 | csky_insn.val[2] = csky_insn.val[0]; | |
6300 | } | |
6301 | /* Generate relax or reloc if necessary. */ | |
6302 | csky_generate_frags (); | |
6303 | /* Generate the insn by mask. */ | |
6304 | csky_generate_insn (); | |
6305 | /* Write inst to frag. */ | |
6306 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6307 | return TRUE; | |
6308 | } | |
6309 | ||
6310 | bfd_boolean | |
6311 | v2_work_bgeni (void) | |
6312 | { | |
6313 | const char *name = NULL; | |
6314 | int imm = csky_insn.val[1]; | |
6315 | int val = 1 << imm; | |
6316 | if (imm < 16) | |
6317 | name = "movi"; | |
6318 | else | |
6319 | { | |
6320 | name = "movih"; | |
6321 | val >>= 16; | |
6322 | } | |
6323 | csky_insn.opcode | |
6324 | = (struct csky_opcode *) hash_find (csky_opcodes_hash, name); | |
6325 | csky_insn.opcode_idx = 0; | |
6326 | csky_insn.val[1] = val; | |
6327 | ||
6328 | /* Generate relax or reloc if necessary. */ | |
6329 | csky_generate_frags (); | |
6330 | /* Generate the insn by mask. */ | |
6331 | csky_generate_insn (); | |
6332 | /* Write inst to frag. */ | |
6333 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6334 | return TRUE; | |
6335 | } | |
6336 | ||
6337 | bfd_boolean | |
6338 | v2_work_not (void) | |
6339 | { | |
6340 | const char *name = "nor"; | |
6341 | csky_insn.opcode | |
6342 | = (struct csky_opcode *) hash_find (csky_opcodes_hash, name); | |
6343 | csky_insn.opcode_idx = 0; | |
6344 | if (csky_insn.number == 1) | |
6345 | { | |
6346 | csky_insn.val[1] = csky_insn.val[0]; | |
6347 | if (csky_insn.val[0] < 16) | |
6348 | { | |
6349 | /* 16 bits nor rz, rz. */ | |
6350 | csky_insn.number = 2; | |
6351 | csky_insn.isize = 2; | |
6352 | } | |
6353 | else | |
6354 | { | |
6355 | csky_insn.val[2] = csky_insn.val[0]; | |
6356 | csky_insn.number = 3; | |
6357 | csky_insn.isize = 4; | |
6358 | } | |
6359 | } | |
6360 | if (csky_insn.number == 2) | |
6361 | { | |
6362 | if (csky_insn.val[0] == csky_insn.val[1] | |
6363 | && csky_insn.val[0] < 16) | |
6364 | { | |
6365 | /* 16 bits nor rz, rz. */ | |
6366 | csky_insn.number = 2; | |
6367 | csky_insn.isize = 2; | |
6368 | } | |
6369 | else | |
6370 | { | |
6371 | csky_insn.val[2] = csky_insn.val[1]; | |
6372 | csky_insn.number = 3; | |
6373 | csky_insn.isize = 4; | |
6374 | } | |
6375 | } | |
6376 | ||
6377 | /* Generate relax or reloc if necessary. */ | |
6378 | csky_generate_frags (); | |
6379 | /* Generate the insn by mask. */ | |
6380 | csky_generate_insn (); | |
6381 | /* Write inst to frag. */ | |
6382 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6383 | return TRUE; | |
6384 | } | |
6385 | ||
6386 | bfd_boolean | |
6387 | v2_work_jbtf (void) | |
6388 | { | |
6389 | if (csky_insn.e1.X_add_symbol == NULL || csky_insn.e1.X_op == O_constant) | |
6390 | { | |
6391 | csky_show_error (ERROR_UNDEFINE, 0, (void *)"operand is invalid", NULL); | |
6392 | return FALSE; | |
6393 | } | |
6394 | ||
6395 | if (IS_CSKY_ARCH_801 (mach_flag)) | |
6396 | { | |
6397 | /* CK801 doesn't have 32-bit bt/bf insns or a jump insn with a | |
6398 | range larger than SCOND_DISP16. Relax to a short jump around | |
6399 | an unconditional branch, and give up if that overflows too. */ | |
6400 | csky_insn.output = frag_var (rs_machine_dependent, | |
6401 | SCOND_DISP16_LEN, | |
6402 | SCOND_DISP10_LEN, | |
6403 | SCOND_DISP10, | |
6404 | csky_insn.e1.X_add_symbol, | |
6405 | csky_insn.e1.X_add_number, | |
6406 | 0); | |
6407 | csky_insn.isize = 2; | |
6408 | csky_insn.max = SCOND_DISP16_LEN; | |
6409 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
6410 | } | |
6411 | else if (do_long_jump && !IS_CSKY_ARCH_802 (mach_flag)) | |
6412 | { | |
6413 | /* Generate relax with jcondition. | |
6414 | Note that CK802 doesn't support the JMPI instruction so | |
6415 | we cannot relax to a jump with a 32-bit offset. */ | |
6416 | csky_insn.output = frag_var (rs_machine_dependent, | |
6417 | JCOND_DISP32_LEN, | |
6418 | JCOND_DISP10_LEN, | |
6419 | JCOND_DISP10, | |
6420 | csky_insn.e1.X_add_symbol, | |
6421 | csky_insn.e1.X_add_number, | |
6422 | 0); | |
6423 | csky_insn.isize = 2; | |
6424 | csky_insn.max = JCOND_DISP32_LEN; | |
6425 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
6426 | } | |
6427 | else | |
6428 | { | |
6429 | /* Generate relax with condition. */ | |
6430 | csky_insn.output = frag_var (rs_machine_dependent, | |
6431 | COND_DISP16_LEN, | |
6432 | COND_DISP10_LEN, | |
6433 | COND_DISP10, | |
6434 | csky_insn.e1.X_add_symbol, | |
6435 | csky_insn.e1.X_add_number, | |
6436 | 0); | |
6437 | csky_insn.isize = 2; | |
6438 | csky_insn.max = COND_DISP16_LEN; | |
6439 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
6440 | } | |
6441 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6442 | ||
6443 | return TRUE; | |
6444 | } | |
6445 | ||
6446 | bfd_boolean | |
6447 | v2_work_jbr (void) | |
6448 | { | |
6449 | if (csky_insn.e1.X_add_symbol == NULL || csky_insn.e1.X_op == O_constant) | |
6450 | { | |
6451 | csky_show_error (ERROR_UNDEFINE, 0, (void *)"operand is invalid", NULL); | |
6452 | return FALSE; | |
6453 | } | |
6454 | ||
6455 | if (do_long_jump | |
6456 | && !IS_CSKY_ARCH_801 (mach_flag) | |
6457 | && !IS_CSKY_ARCH_802 (mach_flag)) | |
6458 | { | |
6459 | csky_insn.output = frag_var (rs_machine_dependent, | |
6460 | JUNCD_DISP32_LEN, | |
6461 | JUNCD_DISP10_LEN, | |
6462 | JUNCD_DISP10, | |
6463 | csky_insn.e1.X_add_symbol, | |
6464 | csky_insn.e1.X_add_number, | |
6465 | 0); | |
6466 | ||
6467 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
6468 | csky_insn.max = JUNCD_DISP32_LEN; | |
6469 | csky_insn.isize = 2; | |
6470 | } | |
6471 | else | |
6472 | { | |
6473 | /* Generate relax with condition. */ | |
6474 | csky_insn.output = frag_var (rs_machine_dependent, | |
6475 | UNCD_DISP16_LEN, | |
6476 | UNCD_DISP10_LEN, | |
6477 | UNCD_DISP10, | |
6478 | csky_insn.e1.X_add_symbol, | |
6479 | csky_insn.e1.X_add_number, | |
6480 | 0); | |
6481 | csky_insn.isize = 2; | |
6482 | csky_insn.max = UNCD_DISP16_LEN; | |
6483 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; | |
6484 | ||
6485 | } | |
6486 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6487 | return TRUE; | |
6488 | } | |
6489 | ||
6490 | #define SIZE_V2_MOVI16(x) ((addressT)x <= 0xff) | |
6491 | #define SIZE_V2_MOVI32(x) ((addressT)x <= 0xffff) | |
6492 | #define SIZE_V2_MOVIH(x) ((addressT)x <= 0xffffffff && (((addressT)x & 0xffff) == 0)) | |
6493 | ||
6494 | bfd_boolean | |
6495 | v2_work_lrw (void) | |
6496 | { | |
6497 | int reg = csky_insn.val[0]; | |
6498 | int output_literal = csky_insn.val[1]; | |
6499 | int is_done = 0; | |
6500 | ||
6501 | /* If the second operand is O_constant, We can use movi/movih | |
6502 | instead of lrw. */ | |
6503 | if (csky_insn.e1.X_op == O_constant) | |
6504 | { | |
6505 | /* 801 only has movi16. */ | |
6506 | if (SIZE_V2_MOVI16 (csky_insn.e1.X_add_number) && reg < 8) | |
6507 | { | |
6508 | /* movi16 instead. */ | |
6509 | csky_insn.output = frag_more (2); | |
6510 | csky_insn.inst = (CSKYV2_INST_MOVI16 | (reg << 8) | |
6511 | | (csky_insn.e1.X_add_number)); | |
6512 | csky_insn.isize = 2; | |
6513 | is_done = 1; | |
6514 | } | |
6515 | else if (SIZE_V2_MOVI32 (csky_insn.e1.X_add_number) | |
6516 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6517 | { | |
6518 | /* movi32 instead. */ | |
6519 | csky_insn.output = frag_more (4); | |
6520 | csky_insn.inst = (CSKYV2_INST_MOVI32 | (reg << 16) | |
6521 | | (csky_insn.e1.X_add_number)); | |
6522 | csky_insn.isize = 4; | |
6523 | is_done = 1; | |
6524 | } | |
6525 | else if (SIZE_V2_MOVIH (csky_insn.e1.X_add_number) | |
6526 | && !IS_CSKY_ARCH_801 (mach_flag)) | |
6527 | { | |
6528 | /* movih instead. */ | |
6529 | csky_insn.output = frag_more (4); | |
6530 | csky_insn.inst = (CSKYV2_INST_MOVIH | (reg << 16) | |
6531 | | ((csky_insn.e1.X_add_number >> 16) & 0xffff)); | |
6532 | csky_insn.isize = 4; | |
6533 | is_done = 1; | |
6534 | } | |
6535 | } | |
6536 | ||
6537 | if (is_done) | |
6538 | { | |
6539 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6540 | return TRUE; | |
6541 | } | |
6542 | ||
6543 | if (output_literal) | |
6544 | { | |
6545 | int n = enter_literal (&csky_insn.e1, 0, 0, 0); | |
6546 | /* Create a reference to pool entry. */ | |
6547 | csky_insn.e1.X_op = O_symbol; | |
6548 | csky_insn.e1.X_add_symbol = poolsym; | |
6549 | csky_insn.e1.X_add_number = n << 2; | |
6550 | } | |
6551 | /* If 16bit force. */ | |
6552 | if (csky_insn.flag_force == INSN_OPCODE16F) | |
6553 | { | |
6554 | /* Generate fixup. */ | |
6555 | if (reg > 7) | |
6556 | { | |
6557 | csky_show_error (ERROR_UNDEFINE, 0, | |
6558 | (void *)"The register is out of range.", NULL); | |
6559 | return FALSE; | |
6560 | } | |
6561 | csky_insn.isize = 2; | |
6562 | csky_insn.output = frag_more (2); | |
6563 | ||
6564 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
6565 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
6566 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
6567 | { | |
6568 | literal_insn_offset->tls_addend.frag = frag_now; | |
6569 | literal_insn_offset->tls_addend.offset | |
6570 | = csky_insn.output - frag_now->fr_literal; | |
6571 | } | |
6572 | csky_insn.inst = csky_insn.opcode->op16[0].opcode | (reg << 5); | |
6573 | csky_insn.max = 4; | |
6574 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6575 | 2, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM7BY4); | |
6576 | } | |
6577 | else if (csky_insn.flag_force == INSN_OPCODE32F) | |
6578 | { | |
6579 | csky_insn.isize = 4; | |
6580 | csky_insn.output = frag_more (4); | |
6581 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
6582 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
6583 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
6584 | { | |
6585 | literal_insn_offset->tls_addend.frag = frag_now; | |
6586 | literal_insn_offset->tls_addend.offset | |
6587 | = csky_insn.output - frag_now->fr_literal; | |
6588 | } | |
6589 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 16); | |
6590 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6591 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM16BY4); | |
6592 | } | |
6593 | else if (!is_done) | |
6594 | { | |
6595 | if (reg < 8) | |
6596 | { | |
6597 | csky_insn.isize = 2; | |
6598 | ||
6599 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
6600 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
6601 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
6602 | literal_insn_offset->tls_addend.frag = frag_now; | |
6603 | ||
6604 | csky_insn.output = frag_var (rs_machine_dependent, | |
6605 | LRW_DISP16_LEN, | |
6606 | LRW_DISP7_LEN, | |
6607 | (do_extend_lrw | |
6608 | ? LRW2_DISP8 : LRW_DISP7), | |
6609 | csky_insn.e1.X_add_symbol, | |
6610 | csky_insn.e1.X_add_number, 0); | |
6611 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
6612 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
6613 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
6614 | { | |
6615 | if (literal_insn_offset->tls_addend.frag->fr_next != frag_now) | |
6616 | literal_insn_offset->tls_addend.frag | |
6617 | = literal_insn_offset->tls_addend.frag->fr_next; | |
6618 | literal_insn_offset->tls_addend.offset | |
6619 | = (csky_insn.output | |
6620 | - literal_insn_offset->tls_addend.frag->fr_literal); | |
6621 | } | |
6622 | csky_insn.inst = csky_insn.opcode->op16[0].opcode | (reg << 5); | |
6623 | csky_insn.max = LRW_DISP16_LEN; | |
6624 | csky_insn.isize = 2; | |
6625 | } | |
6626 | else | |
6627 | { | |
6628 | csky_insn.isize = 4; | |
6629 | csky_insn.output = frag_more (4); | |
6630 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 | |
6631 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 | |
6632 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) | |
6633 | { | |
6634 | literal_insn_offset->tls_addend.frag = frag_now; | |
6635 | literal_insn_offset->tls_addend.offset | |
6636 | = csky_insn.output - frag_now->fr_literal; | |
6637 | } | |
6638 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 16); | |
6639 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6640 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM16BY4); | |
6641 | } | |
6642 | } | |
6643 | ||
6644 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6645 | return TRUE; | |
6646 | } | |
6647 | ||
6648 | bfd_boolean | |
6649 | v2_work_lrsrsw (void) | |
6650 | { | |
6651 | int reg = csky_insn.val[0]; | |
6652 | csky_insn.output = frag_more (4); | |
6653 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 21); | |
6654 | csky_insn.isize = 4; | |
6655 | ||
6656 | switch (insn_reloc) | |
6657 | { | |
6658 | case BFD_RELOC_CKCORE_GOT32: | |
6659 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6660 | 4, &csky_insn.e1, 0, BFD_RELOC_CKCORE_GOT_IMM18BY4); | |
6661 | break; | |
6662 | case BFD_RELOC_CKCORE_PLT32: | |
6663 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6664 | 4, &csky_insn.e1, 0, BFD_RELOC_CKCORE_PLT_IMM18BY4); | |
6665 | break; | |
6666 | default: | |
6667 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6668 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_DOFFSET_IMM18BY4); | |
6669 | break; | |
6670 | } | |
6671 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6672 | return TRUE; | |
6673 | } | |
6674 | ||
6675 | bfd_boolean | |
6676 | v2_work_jbsr (void) | |
6677 | { | |
6678 | if (do_force2bsr | |
6679 | || IS_CSKY_ARCH_801 (mach_flag) | |
6680 | || IS_CSKY_ARCH_802 (mach_flag)) | |
6681 | { | |
6682 | csky_insn.output = frag_more (4); | |
6683 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6684 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM26BY2); | |
6685 | csky_insn.isize = 4; | |
6686 | csky_insn.inst = CSKYV2_INST_BSR32; | |
6687 | } | |
6688 | else | |
6689 | { | |
6690 | int n = enter_literal (&csky_insn.e1, 0, 0, 0); | |
6691 | csky_insn.output = frag_more (4); | |
6692 | csky_insn.e1.X_op = O_symbol; | |
6693 | csky_insn.e1.X_add_symbol = poolsym; | |
6694 | csky_insn.e1.X_add_number = n << 2; | |
6695 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6696 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM16BY4); | |
6697 | if (do_jsri2bsr || IS_CSKY_ARCH_810 (mach_flag)) | |
6698 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6699 | 4, | |
6700 | &(litpool + (csky_insn.e1.X_add_number >> 2))->e, | |
6701 | 1, | |
6702 | BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2); | |
6703 | csky_insn.inst = CSKYV2_INST_JSRI32; | |
6704 | csky_insn.isize = 4; | |
6705 | if (IS_CSKY_ARCH_810 (mach_flag)) | |
6706 | { | |
6707 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6708 | csky_insn.output = frag_more (4); | |
6709 | dwarf2_emit_insn (0); | |
6710 | /* Insert "mov r0, r0". */ | |
6711 | csky_insn.inst = CSKYV2_INST_MOV_R0_R0; | |
6712 | csky_insn.max = 8; | |
6713 | } | |
6714 | } | |
6715 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6716 | ||
6717 | return TRUE; | |
6718 | } | |
6719 | ||
6720 | bfd_boolean | |
6721 | v2_work_jsri (void) | |
6722 | { | |
6723 | /* dump literal. */ | |
6724 | int n = enter_literal (&csky_insn.e1, 1, 0, 0); | |
6725 | csky_insn.e1.X_op = O_symbol; | |
6726 | csky_insn.e1.X_add_symbol = poolsym; | |
6727 | csky_insn.e1.X_add_number = n << 2; | |
6728 | ||
6729 | /* Generate relax or reloc if necessary. */ | |
6730 | csky_generate_frags (); | |
6731 | /* Generate the insn by mask. */ | |
6732 | csky_generate_insn (); | |
6733 | /* Write inst to frag. */ | |
6734 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6735 | /* Control 810 not to generate jsri. */ | |
6736 | if (IS_CSKY_ARCH_810 (mach_flag)) | |
6737 | { | |
6738 | /* Look at adding the R_PCREL_JSRIMM26BY2. | |
6739 | For 'jbsr .L1', this reloc type's symbol | |
6740 | is bound to '.L1', isn't bound to literal pool. */ | |
6741 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6742 | 4, &(litpool + (csky_insn.e1.X_add_number >> 2))->e, 1, | |
6743 | BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2); | |
6744 | csky_insn.output = frag_more (4); | |
6745 | dwarf2_emit_insn (0); | |
6746 | /* The opcode of "mov32 r0,r0". */ | |
6747 | csky_insn.inst = CSKYV2_INST_MOV_R0_R0; | |
6748 | /* The effect of this value is to check literal. */ | |
6749 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6750 | csky_insn.max = 8; | |
6751 | } | |
6752 | return TRUE; | |
6753 | } | |
6754 | ||
6755 | bfd_boolean | |
6756 | v2_work_movih (void) | |
6757 | { | |
6758 | int rz = csky_insn.val[0]; | |
6759 | csky_insn.output = frag_more (4); | |
6760 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (rz << 16); | |
6761 | if (csky_insn.e1.X_op == O_constant) | |
6762 | { | |
6763 | if (csky_insn.e1.X_unsigned == 1 && csky_insn.e1.X_add_number > 0xffff) | |
6764 | { | |
6765 | csky_show_error (ERROR_IMM_OVERFLOW, 2, NULL, NULL); | |
6766 | return FALSE; | |
6767 | } | |
6768 | else if (csky_insn.e1.X_unsigned == 0 && csky_insn.e1.X_add_number < 0) | |
6769 | { | |
6770 | csky_show_error (ERROR_IMM_OVERFLOW, 2, NULL, NULL); | |
6771 | return FALSE; | |
6772 | } | |
6773 | else | |
6774 | csky_insn.inst |= (csky_insn.e1.X_add_number & 0xffff); | |
6775 | } | |
6776 | else if (csky_insn.e1.X_op == O_right_shift | |
6777 | || (csky_insn.e1.X_op == O_symbol && insn_reloc != BFD_RELOC_NONE)) | |
6778 | { | |
6779 | if (csky_insn.e1.X_op_symbol != 0 | |
6780 | && csky_insn.e1.X_op_symbol->sy_value.X_op == O_constant | |
6781 | && 16 == csky_insn.e1.X_op_symbol->sy_value.X_add_number) | |
6782 | { | |
6783 | csky_insn.e1.X_op = O_symbol; | |
6784 | if (insn_reloc == BFD_RELOC_CKCORE_GOT32) | |
6785 | insn_reloc = BFD_RELOC_CKCORE_GOT_HI16; | |
6786 | else if (insn_reloc == BFD_RELOC_CKCORE_PLT32) | |
6787 | insn_reloc = BFD_RELOC_CKCORE_PLT_HI16; | |
6788 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTPC) | |
6789 | insn_reloc = BFD_RELOC_CKCORE_GOTPC_HI16; | |
6790 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTOFF) | |
6791 | insn_reloc = BFD_RELOC_CKCORE_GOTOFF_HI16; | |
6792 | else | |
6793 | insn_reloc = BFD_RELOC_CKCORE_ADDR_HI16; | |
6794 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6795 | 4, &csky_insn.e1, 0, insn_reloc); | |
6796 | } | |
6797 | else | |
6798 | { | |
6799 | void *arg = (void *)"the second operand must be \"SYMBOL >> 16\""; | |
6800 | csky_show_error (ERROR_UNDEFINE, 0, arg, NULL); | |
6801 | return FALSE; | |
6802 | } | |
6803 | } | |
6804 | csky_insn.isize = 4; | |
6805 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6806 | ||
6807 | return TRUE; | |
6808 | } | |
6809 | ||
6810 | bfd_boolean | |
6811 | v2_work_ori (void) | |
6812 | { | |
6813 | int rz = csky_insn.val[0]; | |
6814 | int rx = csky_insn.val[1]; | |
6815 | csky_insn.output = frag_more (4); | |
6816 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (rz << 21) | (rx << 16); | |
6817 | if (csky_insn.e1.X_op == O_constant) | |
6818 | { | |
6819 | if (csky_insn.e1.X_add_number <= 0xffff | |
6820 | && csky_insn.e1.X_add_number >= 0) | |
6821 | csky_insn.inst |= csky_insn.e1.X_add_number; | |
6822 | else | |
6823 | { | |
6824 | csky_show_error (ERROR_IMM_OVERFLOW, 3, NULL, NULL); | |
6825 | return FALSE; | |
6826 | } | |
6827 | } | |
6828 | else if (csky_insn.e1.X_op == O_bit_and) | |
6829 | { | |
6830 | if (csky_insn.e1.X_op_symbol->sy_value.X_op == O_constant | |
6831 | && 0xffff == csky_insn.e1.X_op_symbol->sy_value.X_add_number) | |
6832 | { | |
6833 | csky_insn.e1.X_op = O_symbol; | |
6834 | if (insn_reloc == BFD_RELOC_CKCORE_GOT32) | |
6835 | insn_reloc = BFD_RELOC_CKCORE_GOT_LO16; | |
6836 | else if (insn_reloc == BFD_RELOC_CKCORE_PLT32) | |
6837 | insn_reloc = BFD_RELOC_CKCORE_PLT_LO16; | |
6838 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTPC) | |
6839 | insn_reloc = BFD_RELOC_CKCORE_GOTPC_LO16; | |
6840 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTOFF) | |
6841 | insn_reloc = BFD_RELOC_CKCORE_GOTOFF_LO16; | |
6842 | else | |
6843 | insn_reloc = BFD_RELOC_CKCORE_ADDR_LO16; | |
6844 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6845 | 4, &csky_insn.e1, 0, insn_reloc); | |
6846 | } | |
6847 | else | |
6848 | { | |
6849 | void *arg = (void *)"the third operand must be \"SYMBOL & 0xffff\""; | |
6850 | csky_show_error (ERROR_UNDEFINE, 0, arg, NULL); | |
6851 | return FALSE; | |
6852 | } | |
6853 | } | |
6854 | csky_insn.isize = 4; | |
6855 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6856 | return TRUE; | |
6857 | } | |
6858 | ||
6859 | /* Helper function to encode a single/double floating point constant | |
6860 | into the instruction word for fmovis and fmovid instructions. | |
6861 | The constant is in its IEEE single/double precision representation | |
6862 | and is repacked into the internal 13-bit representation for these | |
6863 | instructions with a diagnostic for overflow. Note that there is no | |
6864 | rounding when converting to the smaller format, just an error if there | |
6865 | is excess precision or the number is too small/large to be represented. */ | |
6866 | ||
6867 | bfd_boolean | |
6868 | float_work_fmovi (void) | |
6869 | { | |
6870 | int rx = csky_insn.val[0]; | |
6871 | ||
6872 | /* We already converted the float constant to the internal 13-bit | |
6873 | representation so we just need to OR it in here. */ | |
6874 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | rx; | |
6875 | csky_insn.inst |= (uint32_t) csky_insn.e1.X_add_number; | |
6876 | ||
6877 | csky_insn.output = frag_more (4); | |
6878 | csky_insn.isize = 4; | |
6879 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6880 | return TRUE; | |
6881 | } | |
6882 | ||
6883 | bfd_boolean | |
6884 | dsp_work_bloop (void) | |
6885 | { | |
6886 | int reg = csky_insn.val[0]; | |
6887 | csky_insn.output = frag_more (4); | |
6888 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 16); | |
6889 | csky_insn.isize = 4; | |
6890 | ||
6891 | if (csky_insn.e1.X_op == O_symbol | |
6892 | && csky_insn.e2.X_op == O_symbol) | |
6893 | { | |
6894 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6895 | 4, &csky_insn.e1, 1, | |
6896 | BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4); | |
6897 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, | |
6898 | 4, &csky_insn.e2, 1, | |
6899 | BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4); | |
6900 | } | |
6901 | ||
6902 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); | |
6903 | return TRUE; | |
6904 | } | |
6905 | ||
6906 | ||
6907 | /* The following are for assembler directive handling. */ | |
6908 | ||
6909 | /* Helper function to adjust constant pool counts when we emit a | |
6910 | data directive in the text section. FUNC is one of the standard | |
6911 | gas functions to handle these directives, like "stringer" for the | |
6912 | .string directive, and ARG is the argument to FUNC. csky_pool_count | |
6913 | essentially wraps the call with the constant pool magic. */ | |
6914 | ||
6915 | static void | |
6916 | csky_pool_count (void (*func) (int), int arg) | |
6917 | { | |
6918 | const fragS *curr_frag = frag_now; | |
6919 | offsetT added = -frag_now_fix_octets (); | |
6920 | ||
6921 | (*func) (arg); | |
6922 | ||
6923 | while (curr_frag != frag_now) | |
6924 | { | |
6925 | added += curr_frag->fr_fix; | |
6926 | curr_frag = curr_frag->fr_next; | |
6927 | } | |
6928 | ||
6929 | added += frag_now_fix_octets (); | |
6930 | poolspan += added; | |
6931 | } | |
6932 | ||
6933 | /* Support the .literals directive. */ | |
6934 | static void | |
6935 | csky_s_literals (int ignore ATTRIBUTE_UNUSED) | |
6936 | { | |
6937 | dump_literals (0); | |
6938 | demand_empty_rest_of_line (); | |
6939 | } | |
6940 | ||
6941 | /* Support the .string, etc directives. */ | |
6942 | static void | |
6943 | csky_stringer (int append_zero) | |
6944 | { | |
6945 | if (now_seg == text_section) | |
6946 | csky_pool_count (stringer, append_zero); | |
6947 | else | |
6948 | stringer (append_zero); | |
6949 | ||
6950 | /* We call check_literals here in case a large number of strings are | |
6951 | being placed into the text section with a sequence of stringer | |
6952 | directives. In theory we could be upsetting something if these | |
6953 | strings are actually in an indexed table instead of referenced by | |
6954 | individual labels. Let us hope that that never happens. */ | |
6955 | check_literals (2, 0); | |
6956 | } | |
6957 | ||
6958 | /* Support integer-mode constructors like .word, .byte, etc. */ | |
6959 | ||
6960 | static void | |
6961 | csky_cons (int nbytes) | |
6962 | { | |
6963 | mapping_state (MAP_DATA); | |
6964 | if (nbytes == 4) /* @GOT. */ | |
6965 | { | |
6966 | do | |
6967 | { | |
6968 | bfd_reloc_code_real_type reloc; | |
6969 | expressionS exp; | |
6970 | ||
6971 | reloc = BFD_RELOC_NONE; | |
6972 | expression (&exp); | |
6973 | lex_got (&reloc, NULL); | |
6974 | ||
6975 | if (exp.X_op == O_symbol && reloc != BFD_RELOC_NONE) | |
6976 | { | |
6977 | reloc_howto_type *howto | |
6978 | = bfd_reloc_type_lookup (stdoutput, reloc); | |
6979 | int size = bfd_get_reloc_size (howto); | |
6980 | ||
6981 | if (size > nbytes) | |
6982 | as_bad (ngettext ("%s relocations do not fit in %d byte", | |
6983 | "%s relocations do not fit in %d bytes", | |
6984 | nbytes), | |
6985 | howto->name, nbytes); | |
6986 | else | |
6987 | { | |
6988 | register char *p = frag_more ((int) nbytes); | |
6989 | int offset = nbytes - size; | |
6990 | ||
6991 | fix_new_exp (frag_now, | |
6992 | p - frag_now->fr_literal + offset, | |
6993 | size, &exp, 0, reloc); | |
6994 | } | |
6995 | } | |
6996 | else | |
6997 | emit_expr (&exp, (unsigned int) nbytes); | |
6998 | if (now_seg == text_section) | |
6999 | poolspan += nbytes; | |
7000 | } | |
7001 | while (*input_line_pointer++ == ','); | |
7002 | ||
7003 | /* Put terminator back into stream. */ | |
7004 | input_line_pointer --; | |
7005 | demand_empty_rest_of_line (); | |
7006 | ||
7007 | return; | |
7008 | } | |
7009 | ||
7010 | if (now_seg == text_section) | |
7011 | csky_pool_count (cons, nbytes); | |
7012 | else | |
7013 | cons (nbytes); | |
7014 | ||
7015 | /* In theory we ought to call check_literals (2,0) here in case | |
7016 | we need to dump the literal table. We cannot do this however, | |
7017 | as the directives that we are intercepting may be being used | |
7018 | to build a switch table, and we must not interfere with its | |
7019 | contents. Instead we cross our fingers and pray... */ | |
7020 | } | |
7021 | ||
7022 | /* Support floating-mode constant directives like .float and .double. */ | |
7023 | ||
7024 | static void | |
7025 | csky_float_cons (int float_type) | |
7026 | { | |
7027 | mapping_state (MAP_DATA); | |
7028 | if (now_seg == text_section) | |
7029 | csky_pool_count (float_cons, float_type); | |
7030 | else | |
7031 | float_cons (float_type); | |
7032 | ||
7033 | /* See the comment in csky_cons () about calling check_literals. | |
7034 | It is unlikely that a switch table will be constructed using | |
7035 | floating point values, but it is still likely that an indexed | |
7036 | table of floating point constants is being created by these | |
7037 | directives, so again we must not interfere with their placement. */ | |
7038 | } | |
7039 | ||
7040 | /* Support the .fill directive. */ | |
7041 | ||
7042 | static void | |
7043 | csky_fill (int ignore) | |
7044 | { | |
7045 | if (now_seg == text_section) | |
7046 | csky_pool_count (s_fill, ignore); | |
7047 | else | |
7048 | s_fill (ignore); | |
7049 | ||
7050 | check_literals (2, 0); | |
7051 | } | |
7052 | ||
7053 | /* Handle the section changing pseudo-ops. These call through to the | |
7054 | normal implementations, but they dump the literal pool first. */ | |
7055 | ||
7056 | static void | |
7057 | csky_s_text (int ignore) | |
7058 | { | |
7059 | dump_literals (0); | |
7060 | ||
7061 | #ifdef OBJ_ELF | |
7062 | obj_elf_text (ignore); | |
7063 | #else | |
7064 | s_text (ignore); | |
7065 | #endif | |
7066 | } | |
7067 | ||
7068 | static void | |
7069 | csky_s_data (int ignore) | |
7070 | { | |
7071 | dump_literals (0); | |
7072 | ||
7073 | #ifdef OBJ_ELF | |
7074 | obj_elf_data (ignore); | |
7075 | #else | |
7076 | s_data (ignore); | |
7077 | #endif | |
7078 | } | |
7079 | ||
7080 | static void | |
7081 | csky_s_section (int ignore) | |
7082 | { | |
7083 | /* Scan forwards to find the name of the section. If the section | |
7084 | being switched to is ".line" then this is a DWARF1 debug section | |
7085 | which is arbitrarily placed inside generated code. In this case | |
7086 | do not dump the literal pool because it is a) inefficient and | |
7087 | b) would require the generation of extra code to jump around the | |
7088 | pool. */ | |
7089 | char * ilp = input_line_pointer; | |
7090 | ||
7091 | while (*ilp != 0 && ISSPACE (*ilp)) | |
7092 | ++ ilp; | |
7093 | ||
7094 | if (strncmp (ilp, ".line", 5) == 0 | |
7095 | && (ISSPACE (ilp[5]) || *ilp == '\n' || *ilp == '\r')) | |
7096 | ; | |
7097 | else | |
7098 | dump_literals (0); | |
7099 | ||
7100 | #ifdef OBJ_ELF | |
7101 | obj_elf_section (ignore); | |
7102 | #endif | |
7103 | #ifdef OBJ_COFF | |
7104 | obj_coff_section (ignore); | |
7105 | #endif | |
7106 | } | |
7107 | ||
7108 | static void | |
7109 | csky_s_bss (int needs_align) | |
7110 | { | |
7111 | dump_literals (0); | |
7112 | s_lcomm_bytes (needs_align); | |
7113 | } | |
7114 | ||
7115 | #ifdef OBJ_ELF | |
7116 | static void | |
7117 | csky_s_comm (int needs_align) | |
7118 | { | |
7119 | dump_literals (0); | |
7120 | obj_elf_common (needs_align); | |
7121 | } | |
7122 | #endif | |
7123 | ||
7124 | /* Handle the .no_literal_dump directive. */ | |
7125 | ||
7126 | static void | |
7127 | csky_noliteraldump (int ignore ATTRIBUTE_UNUSED) | |
7128 | { | |
7129 | do_noliteraldump = 1; | |
7130 | int insn_num = get_absolute_expression (); | |
7131 | /* The insn after '.no_literal_dump insn_num' is insn1, | |
7132 | Don't dump literal pool between insn1 and insn(insn_num+1) | |
7133 | The insn cannot be the insn generate literal, like lrw & jsri. */ | |
7134 | check_literals (0, insn_num * 2); | |
7135 | } | |
7136 | ||
7137 | /* Handle the .align directive. | |
7138 | We must check literals before doing alignment. For example, if | |
7139 | '.align n', add (2^n-1) to poolspan and check literals. */ | |
7140 | ||
7141 | static void | |
7142 | csky_s_align_ptwo (int arg) | |
7143 | { | |
7144 | /* Get the .align's first absolute number. */ | |
7145 | char * temp_pointer = input_line_pointer; | |
7146 | int align = get_absolute_expression (); | |
7147 | check_literals (0, (1 << align) - 1); | |
7148 | input_line_pointer = temp_pointer; | |
7149 | ||
7150 | /* Do alignment. */ | |
7151 | s_align_ptwo (arg); | |
7152 | } | |
7153 | ||
7154 | /* Handle the .stack_size directive. */ | |
7155 | ||
7156 | static void | |
7157 | csky_stack_size (int arg ATTRIBUTE_UNUSED) | |
7158 | { | |
7159 | expressionS exp; | |
7160 | stack_size_entry *sse | |
7161 | = (stack_size_entry *) xcalloc (1, sizeof (stack_size_entry)); | |
7162 | ||
7163 | expression (&exp); | |
7164 | if (exp.X_op == O_symbol) | |
7165 | sse->function = exp.X_add_symbol; | |
7166 | else | |
7167 | { | |
7168 | as_bad (_("the first operand must be a symbol")); | |
7169 | ignore_rest_of_line (); | |
7170 | free (sse); | |
7171 | return; | |
7172 | } | |
7173 | ||
7174 | SKIP_WHITESPACE (); | |
7175 | if (*input_line_pointer != ',') | |
7176 | { | |
7177 | as_bad (_("missing stack size")); | |
7178 | ignore_rest_of_line (); | |
7179 | free (sse); | |
7180 | return; | |
7181 | } | |
7182 | ||
7183 | ++input_line_pointer; | |
7184 | expression (&exp); | |
7185 | if (exp.X_op == O_constant) | |
7186 | { | |
7187 | if (exp.X_add_number < 0 || exp.X_add_number > (offsetT)0xffffffff) | |
7188 | { | |
7189 | ||
7190 | as_bad (_("value not in range [0, 0xffffffff]")); | |
7191 | ignore_rest_of_line (); | |
7192 | free (sse); | |
7193 | return; | |
7194 | } | |
7195 | else | |
7196 | sse->stack_size = exp.X_add_number; | |
7197 | } | |
7198 | else | |
7199 | { | |
7200 | as_bad (_("operand must be a constant")); | |
7201 | ignore_rest_of_line (); | |
7202 | free (sse); | |
7203 | return; | |
7204 | } | |
7205 | ||
7206 | if (*last_stack_size_data != NULL) | |
7207 | last_stack_size_data = &((*last_stack_size_data)->next); | |
7208 | ||
7209 | *last_stack_size_data = sse; | |
7210 | } | |
7211 | ||
7212 | /* This table describes all the machine specific pseudo-ops the assembler | |
7213 | has to support. The fields are: | |
7214 | pseudo-op name without dot | |
7215 | function to call to execute this pseudo-op | |
7216 | Integer arg to pass to the function. */ | |
7217 | ||
7218 | const pseudo_typeS md_pseudo_table[] = | |
7219 | { | |
7220 | { "export", s_globl, 0 }, | |
7221 | { "import", s_ignore, 0 }, | |
7222 | { "literals", csky_s_literals, 0 }, | |
7223 | { "page", listing_eject, 0 }, | |
7224 | ||
7225 | /* The following are to intercept the placement of data into the text | |
7226 | section (eg addresses for a switch table), so that the space they | |
7227 | occupy can be taken into account when deciding whether or not to | |
7228 | dump the current literal pool. | |
7229 | XXX - currently we do not cope with the .space and .dcb.d directives. */ | |
7230 | { "ascii", csky_stringer, 8 + 0 }, | |
7231 | { "asciz", csky_stringer, 8 + 1 }, | |
7232 | { "byte", csky_cons, 1 }, | |
7233 | { "dc", csky_cons, 2 }, | |
7234 | { "dc.b", csky_cons, 1 }, | |
7235 | { "dc.d", csky_float_cons, 'd'}, | |
7236 | { "dc.l", csky_cons, 4 }, | |
7237 | { "dc.s", csky_float_cons, 'f'}, | |
7238 | { "dc.w", csky_cons, 2 }, | |
7239 | { "dc.x", csky_float_cons, 'x'}, | |
7240 | { "double", csky_float_cons, 'd'}, | |
7241 | { "float", csky_float_cons, 'f'}, | |
7242 | { "hword", csky_cons, 2 }, | |
7243 | { "int", csky_cons, 4 }, | |
7244 | { "long", csky_cons, 4 }, | |
7245 | { "octa", csky_cons, 16 }, | |
7246 | { "quad", csky_cons, 8 }, | |
7247 | { "short", csky_cons, 2 }, | |
7248 | { "single", csky_float_cons, 'f'}, | |
7249 | { "string", csky_stringer, 8 + 1 }, | |
7250 | { "word", csky_cons, 4 }, | |
7251 | { "fill", csky_fill, 0 }, | |
7252 | ||
7253 | /* Allow for the effect of section changes. */ | |
7254 | { "text", csky_s_text, 0 }, | |
7255 | { "data", csky_s_data, 0 }, | |
7256 | { "bss", csky_s_bss, 1 }, | |
7257 | #ifdef OBJ_ELF | |
7258 | { "comm", csky_s_comm, 0 }, | |
7259 | #endif | |
7260 | { "section", csky_s_section, 0 }, | |
7261 | { "section.s", csky_s_section, 0 }, | |
7262 | { "sect", csky_s_section, 0 }, | |
7263 | { "sect.s", csky_s_section, 0 }, | |
7264 | /* When ".no_literal_dump N" is in front of insn1, | |
7265 | and instruction sequence is: | |
7266 | insn1 | |
7267 | insn2 | |
7268 | ...... | |
7269 | insnN+1 | |
7270 | it means literals will not dump between insn1 and insnN+1 | |
7271 | The insn cannot itself generate literal, like lrw & jsri. */ | |
7272 | { "no_literal_dump", csky_noliteraldump, 0 }, | |
7273 | { "align", csky_s_align_ptwo, 0 }, | |
7274 | { "stack_size", csky_stack_size, 0 }, | |
7275 | {0, 0, 0} | |
7276 | }; | |
7277 | ||
7278 | /* Implement tc_cfi_frame_initial_instructions. */ | |
7279 | ||
7280 | void | |
7281 | csky_cfi_frame_initial_instructions (void) | |
7282 | { | |
7283 | int sp_reg = IS_CSKY_V1 (mach_flag) ? 0 : 14; | |
7284 | cfi_add_CFA_def_cfa_register (sp_reg); | |
7285 | } | |
7286 | ||
7287 | /* Implement tc_regname_to_dw2regnum. */ | |
7288 | ||
7289 | int | |
7290 | tc_csky_regname_to_dw2regnum (char *regname) | |
7291 | { | |
7292 | int reg_num = -1; | |
7293 | int len; | |
7294 | ||
7295 | /* FIXME the reg should be parsed according to | |
7296 | the abi version. */ | |
7297 | reg_num = csky_get_reg_val (regname, &len); | |
7298 | return reg_num; | |
7299 | } |