| 1 | /* tc-csky.c -- Assembler for C-SKY |
| 2 | Copyright (C) 1989-2020 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 | |
| 33 | #ifdef OBJ_ELF |
| 34 | #include "elf/csky.h" |
| 35 | #include "dw2gencfi.h" |
| 36 | #endif |
| 37 | #include "tc-csky.h" |
| 38 | #include "dwarf2dbg.h" |
| 39 | |
| 40 | #define BUILD_AS 1 |
| 41 | |
| 42 | #define OPCODE_MAX_LEN 20 |
| 43 | #define HAS_SUB_OPERAND 0xfffffffful |
| 44 | |
| 45 | /* This value is just for lrw to distinguish "[]" label. */ |
| 46 | #define NEED_OUTPUT_LITERAL 1 |
| 47 | |
| 48 | #define IS_EXTERNAL_SYM(sym, sec) (S_GET_SEGMENT (sym) != sec) |
| 49 | #define IS_SUPPORT_OPCODE16(opcode) (opcode->isa_flag16 | isa_flag) |
| 50 | #define IS_SUPPORT_OPCODE32(opcode) (opcode->isa_flag32 | isa_flag) |
| 51 | |
| 52 | |
| 53 | #define KB * 1024 |
| 54 | #define MB KB * 1024 |
| 55 | #define GB MB * 1024 |
| 56 | |
| 57 | /* Define DSP version flags. For different CPU, the version of DSP |
| 58 | instructions may be different. */ |
| 59 | #define CSKY_DSP_FLAG_V1 (1 << 0) /* Normal DSP instructions. */ |
| 60 | #define CSKY_DSP_FLAG_V2 (1 << 1) /* CK803S enhanced DSP. */ |
| 61 | |
| 62 | /* Literal pool related macros. */ |
| 63 | /* 1024 - 1 entry - 2 byte rounding. */ |
| 64 | #define v1_SPANPANIC (998) |
| 65 | #define v1_SPANCLOSE (900) |
| 66 | #define v1_SPANEXIT (600) |
| 67 | #define v2_SPANPANIC (1024 - 4) |
| 68 | |
| 69 | /* 1024 is flrw offset. |
| 70 | 24 is the biggest size for single instruction. |
| 71 | for lrw16 (3+7, 512 bytes). */ |
| 72 | #define v2_SPANCLOSE (512 - 24) |
| 73 | |
| 74 | /* For lrw16, 112 average size for a function. */ |
| 75 | #define v2_SPANEXIT (512 - 112) |
| 76 | |
| 77 | /* For lrw16 (3+7, 512 bytes). */ |
| 78 | #define v2_SPANCLOSE_ELRW (1016 - 24) |
| 79 | |
| 80 | /* For lrw16, 112 average size for a function. */ |
| 81 | #define v2_SPANEXIT_ELRW (1016 - 112) |
| 82 | #define MAX_POOL_SIZE (1024 / 4) |
| 83 | #define POOL_END_LABEL ".LE" |
| 84 | #define POOL_START_LABEL ".LS" |
| 85 | |
| 86 | /* Used in v1_relax_table. */ |
| 87 | /* These are the two types of relaxable instruction. */ |
| 88 | #define COND_JUMP 1 |
| 89 | #define UNCD_JUMP 2 |
| 90 | #define COND_JUMP_PIC 3 |
| 91 | #define UNCD_JUMP_PIC 4 |
| 92 | |
| 93 | #define UNDEF_DISP 0 |
| 94 | #define DISP12 1 |
| 95 | #define DISP32 2 |
| 96 | #define UNDEF_WORD_DISP 3 |
| 97 | |
| 98 | #define C12_LEN 2 |
| 99 | /* Allow for align: bt/jmpi/.long + align. */ |
| 100 | #define C32_LEN 10 |
| 101 | /* Allow for align: bt/subi/stw/bsr/lrw/add/ld/addi/jmp/.long + align. */ |
| 102 | #define C32_LEN_PIC 24 |
| 103 | #define U12_LEN 2 |
| 104 | /* Allow for align: jmpi/.long + align. */ |
| 105 | #define U32_LEN 8 |
| 106 | /* Allow for align: subi/stw/bsr/lrw/add/ld/addi/jmp/.long + align. */ |
| 107 | #define U32_LEN_PIC 22 |
| 108 | |
| 109 | #define C(what,length) (((what) << 2) + (length)) |
| 110 | #define UNCD_JUMP_S (do_pic ? UNCD_JUMP_PIC : UNCD_JUMP) |
| 111 | #define COND_JUMP_S (do_pic ? COND_JUMP_PIC : COND_JUMP) |
| 112 | #define U32_LEN_S (do_pic ? U32_LEN_PIC : U32_LEN) |
| 113 | #define C32_LEN_S (do_pic ? C32_LEN_PIC : C32_LEN) |
| 114 | |
| 115 | /* Used in v2_relax_table. */ |
| 116 | #define COND_DISP10_LEN 2 /* bt/bf_16. */ |
| 117 | #define COND_DISP16_LEN 4 /* bt/bf_32. */ |
| 118 | |
| 119 | #define SCOND_DISP10_LEN 2 /* bt/bf_16, for CK801 only. */ |
| 120 | #define SCOND_DISP16_LEN 6 /* !(bt/bf_16) + br_32. */ |
| 121 | |
| 122 | #define UNCD_DISP10_LEN 2 /* br_16. */ |
| 123 | #define UNCD_DISP16_LEN 4 /* br_32. */ |
| 124 | #define UNCD_DISP26_LEN 4 /* br32_old. */ |
| 125 | |
| 126 | #define JCOND_DISP10_LEN 2 /* bt/bf_16. */ |
| 127 | #define JCOND_DISP16_LEN 4 /* bt/bf_32. */ |
| 128 | #define JCOND_DISP32_LEN 12 /* !(bt/bf_16)/jmpi 32/.align 2/literal 4. */ |
| 129 | #define JCOND_DISP26_LEN 8 /* bt/bf_32/br_32 old. */ |
| 130 | |
| 131 | #define JUNCD_DISP26_LEN 4 /* bt/bf_32 old. */ |
| 132 | #define JUNCD_DISP10_LEN 2 /* br_16. */ |
| 133 | #define JUNCD_DISP16_LEN 4 /* bt/bf_32. */ |
| 134 | #define JUNCD_DISP32_LEN 10 /* jmpi_32/.align 2/literal 4/ CHANGED!. */ |
| 135 | #define JCOMP_DISP26_LEN 8 /* bne_32/br_32 old. */ |
| 136 | |
| 137 | #define JCOMP_DISP16_LEN 4 /* bne_32 old. */ |
| 138 | #define JCOMPZ_DISP16_LEN 4 /* bhlz_32. */ |
| 139 | #define JCOMPZ_DISP32_LEN 14 /* bsz_32/jmpi 32/.align 2/literal 4. */ |
| 140 | #define JCOMPZ_DISP26_LEN 8 /* bsz_32/br_32 old. */ |
| 141 | #define JCOMP_DISP32_LEN 14 /* be_32/jmpi_32/.align 2/literal old. */ |
| 142 | |
| 143 | #define BSR_DISP10_LEN 2 /* bsr_16. */ |
| 144 | #define BSR_DISP26_LEN 4 /* bsr_32. */ |
| 145 | #define LRW_DISP7_LEN 2 /* lrw16. */ |
| 146 | #define LRW_DISP16_LEN 4 /* lrw32. */ |
| 147 | |
| 148 | /* Declare worker functions. */ |
| 149 | bfd_boolean v1_work_lrw (void); |
| 150 | bfd_boolean v1_work_jbsr (void); |
| 151 | bfd_boolean v1_work_fpu_fo (void); |
| 152 | bfd_boolean v1_work_fpu_fo_fc (void); |
| 153 | bfd_boolean v1_work_fpu_write (void); |
| 154 | bfd_boolean v1_work_fpu_read (void); |
| 155 | bfd_boolean v1_work_fpu_writed (void); |
| 156 | bfd_boolean v1_work_fpu_readd (void); |
| 157 | bfd_boolean v2_work_istack (void); |
| 158 | bfd_boolean v2_work_btsti (void); |
| 159 | bfd_boolean v2_work_addi (void); |
| 160 | bfd_boolean v2_work_subi (void); |
| 161 | bfd_boolean v2_work_add_sub (void); |
| 162 | bfd_boolean v2_work_rotlc (void); |
| 163 | bfd_boolean v2_work_bgeni (void); |
| 164 | bfd_boolean v2_work_not (void); |
| 165 | bfd_boolean v2_work_jbtf (void); |
| 166 | bfd_boolean v2_work_jbr (void); |
| 167 | bfd_boolean v2_work_lrw (void); |
| 168 | bfd_boolean v2_work_lrsrsw (void); |
| 169 | bfd_boolean v2_work_jbsr (void); |
| 170 | bfd_boolean v2_work_jsri (void); |
| 171 | bfd_boolean v2_work_movih (void); |
| 172 | bfd_boolean v2_work_ori (void); |
| 173 | bfd_boolean float_work_fmovi (void); |
| 174 | bfd_boolean dsp_work_bloop (void); |
| 175 | |
| 176 | /* csky-opc.h must be included after workers are declared. */ |
| 177 | #include "opcodes/csky-opc.h" |
| 178 | #include "opcode/csky.h" |
| 179 | |
| 180 | enum |
| 181 | { |
| 182 | RELAX_NONE = 0, |
| 183 | RELAX_OVERFLOW, |
| 184 | |
| 185 | COND_DISP10 = 20, /* bt/bf_16. */ |
| 186 | COND_DISP16, /* bt/bf_32. */ |
| 187 | |
| 188 | SCOND_DISP10, /* br_16 */ |
| 189 | SCOND_DISP16, /* !(bt/bf_32) + br_32. */ |
| 190 | |
| 191 | UNCD_DISP10, /* br_16. */ |
| 192 | UNCD_DISP16, /* br_32. */ |
| 193 | |
| 194 | JCOND_DISP10, /* bt/bf_16. */ |
| 195 | JCOND_DISP16, /* bt/bf_32. */ |
| 196 | JCOND_DISP32, /* !(bt/bf_32)/jmpi + literal. */ |
| 197 | |
| 198 | JUNCD_DISP10, /* br_16. */ |
| 199 | JUNCD_DISP16, /* br_32. */ |
| 200 | JUNCD_DISP32, /* jmpi + literal. */ |
| 201 | |
| 202 | JCOMPZ_DISP16, /* bez/bnez/bhz/blsz/blz/bhsz. */ |
| 203 | JCOMPZ_DISP32, /* !(jbez/jbnez/jblsz/jblz/jbhsz) + jmpi + literal. */ |
| 204 | |
| 205 | BSR_DISP26, /* bsr_32. */ |
| 206 | |
| 207 | LRW_DISP7, /* lrw16. */ |
| 208 | LRW2_DISP8, /* lrw16, -mno-bsr16,8 bit offset. */ |
| 209 | LRW_DISP16, /* lrw32. */ |
| 210 | }; |
| 211 | |
| 212 | unsigned int mach_flag = 0; |
| 213 | unsigned int arch_flag = 0; |
| 214 | unsigned int other_flag = 0; |
| 215 | unsigned int isa_flag = 0; |
| 216 | unsigned int dsp_flag = 0; |
| 217 | |
| 218 | typedef struct stack_size_entry |
| 219 | { |
| 220 | struct stack_size_entry *next; |
| 221 | symbolS *function; |
| 222 | unsigned int stack_size; |
| 223 | } stack_size_entry; |
| 224 | |
| 225 | struct csky_arch_info |
| 226 | { |
| 227 | const char *name; |
| 228 | unsigned int arch_flag; |
| 229 | unsigned int bfd_mach_flag; |
| 230 | }; |
| 231 | |
| 232 | struct csky_cpu_info |
| 233 | { |
| 234 | const char *name; |
| 235 | unsigned int mach_flag; |
| 236 | unsigned int isa_flag; |
| 237 | }; |
| 238 | |
| 239 | typedef enum |
| 240 | { |
| 241 | INSN_OPCODE, |
| 242 | INSN_OPCODE16F, |
| 243 | INSN_OPCODE32F, |
| 244 | } inst_flag; |
| 245 | |
| 246 | /* Macro information. */ |
| 247 | struct csky_macro_info |
| 248 | { |
| 249 | const char *name; |
| 250 | /* How many operands : if operands == 5, all of 1,2,3,4 are ok. */ |
| 251 | long oprnd_num; |
| 252 | int isa_flag; |
| 253 | /* Do the work. */ |
| 254 | void (*handle_func)(void); |
| 255 | }; |
| 256 | |
| 257 | struct csky_insn_info |
| 258 | { |
| 259 | /* Name of the opcode. */ |
| 260 | char *name; |
| 261 | /* Output instruction. */ |
| 262 | unsigned int inst; |
| 263 | /* Pointer for frag. */ |
| 264 | char *output; |
| 265 | /* End of instruction. */ |
| 266 | char *opcode_end; |
| 267 | /* Flag for INSN_OPCODE16F, INSN_OPCODE32F, INSN_OPCODE, INSN_MACRO. */ |
| 268 | inst_flag flag_force; |
| 269 | /* Operand number. */ |
| 270 | int number; |
| 271 | struct csky_opcode *opcode; |
| 272 | struct csky_macro_info *macro; |
| 273 | /* Insn size for check_literal. */ |
| 274 | unsigned int isize; |
| 275 | /* Max size of insn for relax frag_var. */ |
| 276 | unsigned int max; |
| 277 | /* Indicates which element is in csky_opcode_info op[] array. */ |
| 278 | int opcode_idx; |
| 279 | /* The value of each operand in instruction when layout. */ |
| 280 | int idx; |
| 281 | int val[MAX_OPRND_NUM]; |
| 282 | struct relax_info |
| 283 | { |
| 284 | int max; |
| 285 | int var; |
| 286 | int subtype; |
| 287 | } relax; |
| 288 | /* The following are used for constant expressions. */ |
| 289 | expressionS e1; |
| 290 | expressionS e2; |
| 291 | }; |
| 292 | |
| 293 | /* Literal pool data structures. */ |
| 294 | struct literal |
| 295 | { |
| 296 | unsigned short refcnt; |
| 297 | unsigned char ispcrel; |
| 298 | unsigned char unused; |
| 299 | bfd_reloc_code_real_type r_type; |
| 300 | expressionS e; |
| 301 | struct tls_addend tls_addend; |
| 302 | unsigned char isdouble; |
| 303 | uint64_t dbnum; |
| 304 | }; |
| 305 | |
| 306 | static void csky_idly (void); |
| 307 | static void csky_rolc (void); |
| 308 | static void csky_sxtrb (void); |
| 309 | static void csky_movtf (void); |
| 310 | static void csky_addc64 (void); |
| 311 | static void csky_subc64 (void); |
| 312 | static void csky_or64 (void); |
| 313 | static void csky_xor64 (void); |
| 314 | static void csky_neg (void); |
| 315 | static void csky_rsubi (void); |
| 316 | static void csky_arith (void); |
| 317 | static void csky_decne (void); |
| 318 | static void csky_lrw (void); |
| 319 | |
| 320 | static enum bfd_reloc_code_real insn_reloc; |
| 321 | |
| 322 | /* Assembler operand parse errors use these identifiers. */ |
| 323 | |
| 324 | enum error_number |
| 325 | { |
| 326 | /* The following are errors. */ |
| 327 | ERROR_CREG_ILLEGAL = 0, |
| 328 | ERROR_REG_OVER_RANGE, |
| 329 | ERROR_GREG_ILLEGAL, |
| 330 | ERROR_802J_REG_OVER_RANGE, |
| 331 | ERROR_REG_FORMAT, |
| 332 | ERROR_REG_LIST, |
| 333 | ERROR_IMM_ILLEGAL, |
| 334 | ERROR_IMM_OVERFLOW, /* 5 */ |
| 335 | ERROR_IMM_POWER, |
| 336 | ERROR_JMPIX_OVER_RANGE, |
| 337 | ERROR_EXP_CREG, |
| 338 | ERROR_EXP_GREG, |
| 339 | ERROR_EXP_CONSTANT, |
| 340 | ERROR_EXP_EVEN_FREG, |
| 341 | ERROR_RELOC_ILLEGAL, |
| 342 | ERROR_MISSING_OPERAND, /* 10 */ |
| 343 | ERROR_MISSING_COMMA, |
| 344 | ERROR_MISSING_LBRACKET, |
| 345 | ERROR_MISSING_RBRACKET, |
| 346 | ERROR_MISSING_LSQUARE_BRACKETS, |
| 347 | ERROR_MISSING_RSQUARE_BRACKETS, /* 15 */ |
| 348 | ERROR_MISSING_LANGLE_BRACKETS, |
| 349 | ERROR_MISSING_RANGLE_BRACKETS, |
| 350 | ERROR_OFFSET_UNALIGNED, |
| 351 | ERROR_BAD_END, |
| 352 | ERROR_UNDEFINE, |
| 353 | ERROR_CPREG_ILLEGAL, /* 20 */ |
| 354 | ERROR_OPCODE_PSRBIT, |
| 355 | ERROR_OPERANDS_ILLEGAL, |
| 356 | ERROR_OPERANDS_NUMBER, |
| 357 | ERROR_OPCODE_ILLEGAL, |
| 358 | |
| 359 | /* The following are warnings. */ |
| 360 | WARNING_OPTIONS, |
| 361 | WARNING_IDLY, |
| 362 | |
| 363 | /* Error and warning end. */ |
| 364 | ERROR_NONE, |
| 365 | }; |
| 366 | |
| 367 | /* Global error state. ARG1 and ARG2 are opaque data interpreted |
| 368 | as appropriate for the error code. */ |
| 369 | |
| 370 | struct csky_error_state |
| 371 | { |
| 372 | enum error_number err_num; |
| 373 | int opnum; |
| 374 | const void *arg1; |
| 375 | const void *arg2; |
| 376 | } error_state; |
| 377 | |
| 378 | /* This macro is used to set error number and arg1 in the global state. */ |
| 379 | |
| 380 | #define SET_ERROR_NUMBER(err, msg) \ |
| 381 | do { \ |
| 382 | if (error_state.err_num > err) \ |
| 383 | { \ |
| 384 | error_state.err_num = err; \ |
| 385 | error_state.arg1 = (void *)msg; \ |
| 386 | } \ |
| 387 | } while (0) |
| 388 | |
| 389 | |
| 390 | /* Map error identifiers onto a format string, which will use |
| 391 | arg1 and arg2 from the global error state. */ |
| 392 | struct csky_error_format_map |
| 393 | { |
| 394 | enum error_number num; |
| 395 | const char *fmt; |
| 396 | }; |
| 397 | |
| 398 | static const struct csky_error_format_map err_formats[] = |
| 399 | { |
| 400 | {ERROR_CREG_ILLEGAL, "Operand %d error: control register is illegal."}, |
| 401 | {ERROR_REG_OVER_RANGE, "Operand %d error: r%d register is over range."}, |
| 402 | {ERROR_GREG_ILLEGAL, "Operand %d error: general register is illegal."}, |
| 403 | {ERROR_802J_REG_OVER_RANGE, "Operand %d register %s out of range (802j only has registers:0-15,23,24,25,30)"}, |
| 404 | {ERROR_REG_FORMAT, "Operand %d error: %s."}, |
| 405 | {ERROR_REG_LIST, "Register list format is illegal."}, |
| 406 | {ERROR_IMM_ILLEGAL, "Operand %d is not an immediate."}, |
| 407 | {ERROR_IMM_OVERFLOW, "Operand %d immediate is overflow."}, |
| 408 | {ERROR_IMM_POWER, "immediate %d is not a power of two"}, |
| 409 | {ERROR_JMPIX_OVER_RANGE, "The second operand must be 16/24/32/40"}, |
| 410 | {ERROR_EXP_CREG, "Operand %d error: control register is expected."}, |
| 411 | {ERROR_EXP_GREG, "Operand %d error: general register is expected."}, |
| 412 | {ERROR_EXP_CONSTANT, "Operand %d error: constant is expected."}, |
| 413 | {ERROR_EXP_EVEN_FREG, "Operand %d error: even float register is expected."}, |
| 414 | {ERROR_RELOC_ILLEGAL, "@%s reloc is not supported"}, |
| 415 | {ERROR_MISSING_OPERAND, "Operand %d is missing."}, |
| 416 | {ERROR_MISSING_COMMA, "Missing ','"}, |
| 417 | {ERROR_MISSING_LBRACKET, "Missing '('"}, |
| 418 | {ERROR_MISSING_RBRACKET, "Missing ')'"}, |
| 419 | {ERROR_MISSING_LSQUARE_BRACKETS, "Missing '['"}, |
| 420 | {ERROR_MISSING_RSQUARE_BRACKETS, "Missing ']'"}, |
| 421 | {ERROR_MISSING_LANGLE_BRACKETS, "Missing '<'"}, |
| 422 | {ERROR_MISSING_RANGLE_BRACKETS, "Missing '>'"}, |
| 423 | {ERROR_OFFSET_UNALIGNED, "Operand %d is unaligned. It must be %d aligned!"}, |
| 424 | {ERROR_BAD_END, "Operands mismatch, it has a bad end: %s"}, |
| 425 | {ERROR_UNDEFINE, NULL}, |
| 426 | {ERROR_CPREG_ILLEGAL, "Operand %d illegal, expect a cpreg(cpr0-cpr63)."}, |
| 427 | {ERROR_OPCODE_PSRBIT, "The operands must be 'ie'/'ee'/'fe'."}, |
| 428 | {ERROR_OPERANDS_ILLEGAL, "Operands mismatch: %s."}, |
| 429 | {ERROR_OPERANDS_NUMBER, "Operands number mismatch, %d operands expected."}, |
| 430 | {ERROR_OPCODE_ILLEGAL, "The instruction is not recognized."}, |
| 431 | {WARNING_OPTIONS, "Option %s is not support in %s."}, |
| 432 | {WARNING_IDLY, "idly %d is encoded to: idly 4 "}, |
| 433 | {ERROR_NONE, "There is no error."}, |
| 434 | }; |
| 435 | |
| 436 | static int do_pic = 0; /* for jbr/jbf/jbt relax jmpi reloc. */ |
| 437 | static int do_pff = -1; /* for insert two br ahead of literals. */ |
| 438 | static int do_force2bsr = -1; /* for jbsr->bsr. */ |
| 439 | static int do_jsri2bsr = 1; /* for jsri->bsr. */ |
| 440 | static int do_nolrw = 0; /* lrw to movih & ori, only for V2. */ |
| 441 | static int do_long_jump = -1; /* control if jbf,jbt,jbr relax to jmpi. */ |
| 442 | static int do_extend_lrw = -1; /* delete bsr16 in both two options, |
| 443 | add btesti16, lrw offset +1 in -melrw. */ |
| 444 | static int do_func_dump = 0; /* dump literals after every function. */ |
| 445 | static int do_br_dump = 1; /* work for -mabr/-mno-abr, control the literals dump. */ |
| 446 | static int do_intr_stack = -1; /* control interrupt stack module, 801&802&803 |
| 447 | default on, 807&810, default off. */ |
| 448 | |
| 449 | #ifdef INCLUDE_BRANCH_STUB |
| 450 | static int do_use_branchstub = -1; |
| 451 | #else |
| 452 | static int do_use_branchstub = 0; |
| 453 | #endif |
| 454 | |
| 455 | /* These are only used for options parsing. Values are bitmasks and are |
| 456 | OR'ed into the processor flag bits in md_begin. */ |
| 457 | static int do_opt_mmp = 0; |
| 458 | static int do_opt_mcp = 0; |
| 459 | static int do_opt_mcache = 0; |
| 460 | static int do_opt_msecurity = 0; |
| 461 | static int do_opt_mhard_float = 0; |
| 462 | static int do_opt_mtrust = 0; |
| 463 | static int do_opt_mdsp = 0; |
| 464 | static int do_opt_medsp = 0; |
| 465 | static int do_opt_mvdsp = 0; |
| 466 | |
| 467 | const relax_typeS *md_relax_table = NULL; |
| 468 | struct literal *literal_insn_offset; |
| 469 | static struct literal litpool[MAX_POOL_SIZE]; |
| 470 | static unsigned poolsize = 0; |
| 471 | static unsigned poolnumber = 0; |
| 472 | static unsigned long poolspan = 0; |
| 473 | static unsigned int SPANPANIC; |
| 474 | static unsigned int SPANCLOSE; |
| 475 | static unsigned int SPANEXIT; |
| 476 | |
| 477 | static stack_size_entry *all_stack_size_data = NULL; |
| 478 | static stack_size_entry **last_stack_size_data = &all_stack_size_data; |
| 479 | |
| 480 | /* Control by ".no_literal_dump N" |
| 481 | * 1 : don't dump literal pool between insn1 and insnN+1 |
| 482 | * 0 : do nothing. */ |
| 483 | static int do_noliteraldump = 0; |
| 484 | |
| 485 | /* Label for current pool. */ |
| 486 | static symbolS * poolsym; |
| 487 | static char poolname[8]; |
| 488 | |
| 489 | static bfd_boolean mov_r1_before; |
| 490 | static bfd_boolean mov_r1_after; |
| 491 | |
| 492 | const relax_typeS csky_relax_table [] = |
| 493 | { |
| 494 | /* C-SKY V1 relax table. */ |
| 495 | {0, 0, 0, 0}, /* RELAX_NONE */ |
| 496 | {0, 0, 0, 0}, /* RELAX_OVERFLOW */ |
| 497 | {0, 0, 0, 0}, |
| 498 | {0, 0, 0, 0}, |
| 499 | |
| 500 | /* COND_JUMP */ |
| 501 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ |
| 502 | { 2048, -2046, C12_LEN, C (COND_JUMP, DISP32) }, /* DISP12 */ |
| 503 | { 0, 0, C32_LEN, 0 }, /* DISP32 */ |
| 504 | { 0, 0, C32_LEN, 0 }, /* UNDEF_WORD_DISP */ |
| 505 | |
| 506 | /* UNCD_JUMP */ |
| 507 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ |
| 508 | { 2048, -2046, U12_LEN, C (UNCD_JUMP, DISP32) }, /* DISP12 */ |
| 509 | { 0, 0, U32_LEN, 0 }, /* DISP32 */ |
| 510 | { 0, 0, U32_LEN, 0 }, /* UNDEF_WORD_DISP */ |
| 511 | |
| 512 | /* COND_JUMP_PIC */ |
| 513 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ |
| 514 | { 2048, -2046, C12_LEN, C (COND_JUMP_PIC, DISP32) }, /* DISP12 */ |
| 515 | { 0, 0, C32_LEN_PIC, 0 }, /* DISP32 */ |
| 516 | { 0, 0, C32_LEN_PIC, 0 }, /* UNDEF_WORD_DISP */ |
| 517 | |
| 518 | /* UNCD_JUMP_PIC */ |
| 519 | { 0, 0, 0, 0 }, /* UNDEF_DISP */ |
| 520 | { 2048, -2046, U12_LEN, C (UNCD_JUMP_PIC, DISP32) }, /* DISP12 */ |
| 521 | { 0, 0, U32_LEN_PIC, 0 }, /* DISP32 */ |
| 522 | { 0, 0, U32_LEN_PIC, 0 }, /* UNDEF_WORD_DISP */ |
| 523 | |
| 524 | /* C-SKY V2 relax table. */ |
| 525 | /* forward backward length more */ |
| 526 | { 1 KB - 2, -1 KB, COND_DISP10_LEN, COND_DISP16 }, /* COND_DISP10 */ |
| 527 | { 64 KB - 2, -64 KB, COND_DISP16_LEN, RELAX_OVERFLOW }, /* COND_DISP16 */ |
| 528 | |
| 529 | { 1 KB - 2, -1 KB, SCOND_DISP10_LEN, SCOND_DISP16 }, /* SCOND_DISP10 */ |
| 530 | { 64 KB - 2, -64 KB, SCOND_DISP16_LEN, RELAX_OVERFLOW }, /* SCOND_DISP16 */ |
| 531 | |
| 532 | { 1 KB - 2, -1 KB, UNCD_DISP10_LEN, UNCD_DISP16 }, /* UNCD_DISP10 */ |
| 533 | { 64 KB - 2, -64 KB, UNCD_DISP16_LEN, RELAX_OVERFLOW }, /* UNCD_DISP16 */ |
| 534 | |
| 535 | { 1 KB - 2, -1 KB, JCOND_DISP10_LEN, JCOND_DISP16 }, /* JCOND_DISP10 */ |
| 536 | { 64 KB - 2, -64 KB, JCOND_DISP16_LEN, JCOND_DISP32 }, /* JCOND_DISP16 */ |
| 537 | { 0, 0, JCOND_DISP32_LEN, RELAX_NONE }, /* JCOND_DISP32 */ |
| 538 | |
| 539 | { 1 KB - 2, -1 KB, JUNCD_DISP10_LEN, JUNCD_DISP16 }, /* JUNCD_DISP10 */ |
| 540 | { 64 KB - 2, -64 KB, JUNCD_DISP16_LEN, JUNCD_DISP32 }, /* JUNCD_DISP16 */ |
| 541 | { 0, 0, JUNCD_DISP32_LEN, RELAX_NONE }, /* JUNCD_DISP32 */ |
| 542 | |
| 543 | { 64 KB - 2, -64 KB, JCOMPZ_DISP16_LEN, JCOMPZ_DISP32 }, /* JCOMPZ_DISP16 */ |
| 544 | { 0, 0, JCOMPZ_DISP32_LEN, RELAX_NONE }, /* JCOMPZ_DISP32 */ |
| 545 | |
| 546 | { 64 MB - 2, -64 MB, BSR_DISP26_LEN, RELAX_OVERFLOW }, /* BSR_DISP26 */ |
| 547 | |
| 548 | { 508, 0, LRW_DISP7_LEN, LRW_DISP16 }, /* LRW_DISP7 */ |
| 549 | { 1016, 0, LRW_DISP7_LEN, LRW_DISP16 }, /* LRW2_DISP8 */ |
| 550 | { 64 KB, 0, LRW_DISP16_LEN, RELAX_OVERFLOW }, /* LRW_DISP16 */ |
| 551 | |
| 552 | }; |
| 553 | |
| 554 | static void csky_write_insn (char *ptr, valueT use, int nbytes); |
| 555 | void md_number_to_chars (char * buf, valueT val, int n); |
| 556 | long md_pcrel_from_section (fixS * fixP, segT seg); |
| 557 | |
| 558 | /* C-SKY architecture table. */ |
| 559 | const struct csky_arch_info csky_archs[] = |
| 560 | { |
| 561 | {"ck510", CSKY_ARCH_510, bfd_mach_ck510}, |
| 562 | {"ck610", CSKY_ARCH_610, bfd_mach_ck610}, |
| 563 | {"ck801", CSKY_ARCH_801, bfd_mach_ck801}, |
| 564 | {"ck802", CSKY_ARCH_802, bfd_mach_ck802}, |
| 565 | {"ck803", CSKY_ARCH_803, bfd_mach_ck803}, |
| 566 | #define CSKY_ARCH_807_BASE CSKY_ARCH_807 | CSKY_ARCH_DSP |
| 567 | #define CSKY_ARCH_810_BASE CSKY_ARCH_810 | CSKY_ARCH_DSP |
| 568 | {"ck807", CSKY_ARCH_807_BASE, bfd_mach_ck807}, |
| 569 | {"ck810", CSKY_ARCH_810_BASE, bfd_mach_ck810}, |
| 570 | {NULL, 0, 0} |
| 571 | }; |
| 572 | |
| 573 | /* C-SKY cpus table. */ |
| 574 | const struct csky_cpu_info csky_cpus[] = |
| 575 | { |
| 576 | /* CK510 series. */ |
| 577 | #define CSKYV1_ISA_DSP CSKY_ISA_DSP | CSKY_ISA_MAC_DSP |
| 578 | {"ck510", CSKY_ARCH_510, CSKYV1_ISA_E1}, |
| 579 | {"ck510e", CSKY_ARCH_510 | CSKY_ARCH_DSP, CSKYV1_ISA_E1 | CSKYV1_ISA_DSP}, |
| 580 | {"ck520", CSKY_ARCH_510 | CSKY_ARCH_MAC, CSKYV1_ISA_E1 | CSKY_ISA_MAC | CSKY_ISA_MAC_DSP}, |
| 581 | |
| 582 | #define CSKY_ISA_610 CSKYV1_ISA_E1 | CSKY_ISA_CP |
| 583 | /* CK610 series. */ |
| 584 | {"ck610", CSKY_ARCH_610, CSKY_ISA_610}, |
| 585 | {"ck610e", CSKY_ARCH_610 | CSKY_ARCH_DSP, CSKY_ISA_610 | CSKYV1_ISA_DSP}, |
| 586 | {"ck610f", CSKY_ARCH_610 | CSKY_ARCH_FLOAT, CSKY_ISA_610 | CSKY_ISA_FLOAT_E1}, |
| 587 | {"ck610ef", CSKY_ARCH_610 | CSKY_ARCH_FLOAT | CSKY_ARCH_DSP, CSKY_ISA_610 | CSKY_ISA_FLOAT_E1 | CSKYV1_ISA_DSP}, |
| 588 | {"ck610fe", CSKY_ARCH_610 | CSKY_ARCH_FLOAT | CSKY_ARCH_DSP, CSKY_ISA_610 | CSKY_ISA_FLOAT_E1 | CSKYV1_ISA_DSP}, |
| 589 | {"ck620", CSKY_ARCH_610 | CSKY_ARCH_MAC, CSKY_ISA_610 | CSKY_ISA_MAC | CSKY_ISA_MAC_DSP}, |
| 590 | |
| 591 | /* CK801 series. */ |
| 592 | #define CSKY_ISA_801 CSKYV2_ISA_E1 |
| 593 | #define CSKYV2_ISA_DSP (CSKY_ISA_DSP | CSKY_ISA_DSP_1E2) |
| 594 | {"ck801", CSKY_ARCH_801, CSKY_ISA_801}, |
| 595 | {"ck801t", CSKY_ARCH_801, CSKY_ISA_801 | CSKY_ISA_TRUST}, |
| 596 | |
| 597 | /* CK802 series. */ |
| 598 | #define CSKY_ISA_802 (CSKY_ISA_801 | CSKYV2_ISA_1E2 | CSKY_ISA_NVIC) |
| 599 | {"ck802", CSKY_ARCH_802, CSKY_ISA_802}, |
| 600 | {"ck802j", CSKY_ARCH_802 | CSKY_ARCH_JAVA, CSKY_ISA_802 | CSKY_ISA_JAVA}, |
| 601 | {"ck802t", CSKY_ARCH_802, CSKY_ISA_802 | CSKY_ISA_TRUST}, |
| 602 | |
| 603 | /* CK803 series. */ |
| 604 | #define CSKY_ISA_803 (CSKY_ISA_802 | CSKYV2_ISA_2E3 | CSKY_ISA_MP) |
| 605 | #define CSKY_ISA_803R1 (CSKY_ISA_803 | CSKYV2_ISA_3E3R1) |
| 606 | #define CSKY_ISA_FLOAT_803 (CSKY_ISA_FLOAT_E1 | CSKY_ISA_FLOAT_1E3) |
| 607 | {"ck803", CSKY_ARCH_803, CSKY_ISA_803 }, |
| 608 | {"ck803h", CSKY_ARCH_803, CSKY_ISA_803 }, |
| 609 | {"ck803t", CSKY_ARCH_803, CSKY_ISA_803 | CSKY_ISA_TRUST}, |
| 610 | {"ck803ht", CSKY_ARCH_803, CSKY_ISA_803 | CSKY_ISA_TRUST}, |
| 611 | {"ck803f", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKY_ISA_FLOAT_803}, |
| 612 | {"ck803fh", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKY_ISA_FLOAT_803}, |
| 613 | {"ck803e", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP}, |
| 614 | {"ck803eh", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP}, |
| 615 | {"ck803et", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, |
| 616 | {"ck803eht", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, |
| 617 | {"ck803ef", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803}, |
| 618 | {"ck803efh", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803}, |
| 619 | {"ck803ft", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, |
| 620 | {"ck803eft", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, |
| 621 | {"ck803efht", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, |
| 622 | {"ck803r1", CSKY_ARCH_803, CSKY_ISA_803R1 }, |
| 623 | {"ck803hr1", CSKY_ARCH_803, CSKY_ISA_803R1 }, |
| 624 | {"ck803tr1", CSKY_ARCH_803, CSKY_ISA_803R1 | CSKY_ISA_TRUST}, |
| 625 | {"ck803htr1", CSKY_ARCH_803, CSKY_ISA_803R1 | CSKY_ISA_TRUST}, |
| 626 | {"ck803fr1", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803}, |
| 627 | {"ck803fhr1", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803}, |
| 628 | {"ck803er1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE}, |
| 629 | {"ck803ehr1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE}, |
| 630 | {"ck803etr1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_TRUST}, |
| 631 | {"ck803ehtr1", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_TRUST}, |
| 632 | {"ck803efr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803}, |
| 633 | {"ck803efhr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803}, |
| 634 | {"ck803ftr1", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, |
| 635 | {"ck803eftr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, |
| 636 | {"ck803ehftr1", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_DSP_ENHANCE | CSKY_ISA_FLOAT_803 | CSKY_ISA_TRUST}, |
| 637 | |
| 638 | {"ck803s", CSKY_ARCH_803, CSKY_ISA_803R1 }, |
| 639 | {"ck803se", CSKY_ARCH_803 | CSKY_ARCH_DSP, CSKY_ISA_803R1 | CSKYV2_ISA_DSP}, |
| 640 | {"ck803sj", CSKY_ARCH_803 | CSKY_ARCH_JAVA, CSKY_ISA_803R1 | CSKY_ISA_JAVA}, |
| 641 | {"ck803sf", CSKY_ARCH_803 | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKY_ISA_FLOAT_803}, |
| 642 | {"ck803sef", CSKY_ARCH_803 | CSKY_ARCH_DSP | CSKY_ARCH_FLOAT, CSKY_ISA_803R1 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_803}, |
| 643 | {"ck803st", CSKY_ARCH_803, CSKY_ISA_803R1 | CSKY_ISA_TRUST}, |
| 644 | |
| 645 | /* CK807 series. */ |
| 646 | #define CSKY_ISA_807 (CSKY_ISA_803 | CSKYV2_ISA_3E7 | CSKY_ISA_DSP | CSKY_ISA_MP_1E2 | CSKY_ISA_CACHE) |
| 647 | #define CSKY_ISA_FLOAT_807 (CSKY_ISA_FLOAT_803 | CSKY_ISA_FLOAT_3E4 | CSKY_ISA_FLOAT_1E2) |
| 648 | {"ck807e", CSKY_ARCH_807_BASE, CSKY_ISA_807 | CSKYV2_ISA_DSP}, |
| 649 | {"ck807ef", CSKY_ARCH_807_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_807 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_807}, |
| 650 | {"ck807", CSKY_ARCH_807_BASE, CSKY_ISA_807 | CSKYV2_ISA_DSP}, |
| 651 | {"ck807f", CSKY_ARCH_807_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_807 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_807}, |
| 652 | |
| 653 | /* CK810 series. */ |
| 654 | #define CSKY_ISA_810 (CSKY_ISA_807 | CSKYV2_ISA_7E10) |
| 655 | #define CSKY_ISA_FLOAT_810 (CSKY_ISA_FLOAT_E1 | CSKY_ISA_FLOAT_1E2) |
| 656 | {"ck810e", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP}, |
| 657 | {"ck810et", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, |
| 658 | {"ck810ef", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_810}, |
| 659 | {"ck810eft", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_810 | CSKY_ISA_TRUST}, |
| 660 | {"ck810", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP}, |
| 661 | {"ck810v", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_VDSP}, |
| 662 | {"ck810f", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_FLOAT_810}, |
| 663 | {"ck810t", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, |
| 664 | {"ck810tv", CSKY_ARCH_810_BASE, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_TRUST}, |
| 665 | {"ck810ft", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_VDSP | CSKY_ISA_FLOAT_810 | CSKY_ISA_TRUST}, |
| 666 | {"ck810ftv", CSKY_ARCH_810_BASE | CSKY_ARCH_FLOAT, CSKY_ISA_810 | CSKYV2_ISA_DSP | CSKY_ISA_VDSP | CSKY_ISA_FLOAT_810 | CSKY_ISA_TRUST}, |
| 667 | |
| 668 | {NULL, 0, 0} |
| 669 | }; |
| 670 | |
| 671 | int md_short_jump_size = 2; |
| 672 | int md_long_jump_size = 4; |
| 673 | |
| 674 | /* This array holds the chars that always start a comment. If the |
| 675 | pre-processor is disabled, these aren't very useful. */ |
| 676 | const char comment_chars[] = "#"; |
| 677 | |
| 678 | /* This array holds the chars that only start a comment at the beginning of |
| 679 | a line. If the line seems to have the form '# 123 filename' |
| 680 | .line and .file directives will appear in the pre-processed output. */ |
| 681 | /* Note that input_file.c hand checks for '#' at the beginning of the |
| 682 | first line of the input file. This is because the compiler outputs |
| 683 | #NO_APP at the beginning of its output. */ |
| 684 | /* Also note that comments like this one will always work. */ |
| 685 | const char line_comment_chars[] = "#"; |
| 686 | |
| 687 | const char line_separator_chars[] = ";"; |
| 688 | |
| 689 | /* Chars that can be used to separate mant |
| 690 | from exp in floating point numbers. */ |
| 691 | const char EXP_CHARS[] = "eE"; |
| 692 | |
| 693 | /* Chars that mean this number is a floating point constant. |
| 694 | As in 0f12.456 |
| 695 | or 0d1.2345e12 */ |
| 696 | |
| 697 | const char FLT_CHARS[] = "rRsSfFdDxXeEpP"; |
| 698 | |
| 699 | const char *md_shortopts = ""; |
| 700 | |
| 701 | struct option md_longopts[] = { |
| 702 | #define OPTION_MARCH (OPTION_MD_BASE + 0) |
| 703 | {"march", required_argument, NULL, OPTION_MARCH}, |
| 704 | #define OPTION_MCPU (OPTION_MD_BASE + 1) |
| 705 | {"mcpu", required_argument, NULL, OPTION_MCPU}, |
| 706 | |
| 707 | /* Remaining options just set boolean flags. */ |
| 708 | {"EL", no_argument, &target_big_endian, 0}, |
| 709 | {"mlittle-endian", no_argument, &target_big_endian, 0}, |
| 710 | {"EB", no_argument, &target_big_endian, 1}, |
| 711 | {"mbig-endian", no_argument, &target_big_endian, 1}, |
| 712 | {"fpic", no_argument, &do_pic, 1}, |
| 713 | {"pic", no_argument, &do_pic, 1}, |
| 714 | {"mljump", no_argument, &do_long_jump, 1}, |
| 715 | {"mno-ljump", no_argument, &do_long_jump, 0}, |
| 716 | {"force2bsr", no_argument, &do_force2bsr, 1}, |
| 717 | {"mforce2bsr", no_argument, &do_force2bsr, 1}, |
| 718 | {"no-force2bsr", no_argument, &do_force2bsr, 0}, |
| 719 | {"mno-force2bsr", no_argument, &do_force2bsr, 0}, |
| 720 | {"jsri2bsr", no_argument, &do_jsri2bsr, 1}, |
| 721 | {"mjsri2bsr", no_argument, &do_jsri2bsr, 1}, |
| 722 | {"no-jsri2bsr", no_argument, &do_jsri2bsr, 0}, |
| 723 | {"mno-jsri2bsr", no_argument, &do_jsri2bsr, 0}, |
| 724 | {"mnolrw", no_argument, &do_nolrw, 1}, |
| 725 | {"mno-lrw", no_argument, &do_nolrw, 1}, |
| 726 | {"melrw", no_argument, &do_extend_lrw, 1}, |
| 727 | {"mno-elrw", no_argument, &do_extend_lrw, 0}, |
| 728 | {"mlaf", no_argument, &do_func_dump, 1}, |
| 729 | {"mliterals-after-func", no_argument, &do_func_dump, 1}, |
| 730 | {"mno-laf", no_argument, &do_func_dump, 0}, |
| 731 | {"mno-literals-after-func", no_argument, &do_func_dump, 0}, |
| 732 | {"mlabr", no_argument, &do_br_dump, 1}, |
| 733 | {"mliterals-after-br", no_argument, &do_br_dump, 1}, |
| 734 | {"mno-labr", no_argument, &do_br_dump, 0}, |
| 735 | {"mnoliterals-after-br", no_argument, &do_br_dump, 0}, |
| 736 | {"mistack", no_argument, &do_intr_stack, 1}, |
| 737 | {"mno-istack", no_argument, &do_intr_stack, 0}, |
| 738 | #ifdef INCLUDE_BRANCH_STUB |
| 739 | {"mbranch-stub", no_argument, &do_use_branchstub, 1}, |
| 740 | {"mno-branch-stub", no_argument, &do_use_branchstub, 0}, |
| 741 | #endif |
| 742 | {"mhard-float", no_argument, &do_opt_mhard_float, CSKY_ARCH_FLOAT}, |
| 743 | {"mmp", no_argument, &do_opt_mmp, CSKY_ARCH_MP}, |
| 744 | {"mcp", no_argument, &do_opt_mcp, CSKY_ARCH_CP}, |
| 745 | {"mcache", no_argument, &do_opt_mcache, CSKY_ARCH_CACHE}, |
| 746 | {"msecurity", no_argument, &do_opt_msecurity, CSKY_ARCH_MAC}, |
| 747 | {"mtrust", no_argument, &do_opt_mtrust, CSKY_ISA_TRUST}, |
| 748 | {"mdsp", no_argument, &do_opt_mdsp, CSKY_DSP_FLAG_V1}, |
| 749 | {"medsp", no_argument, &do_opt_medsp, CSKY_DSP_FLAG_V2}, |
| 750 | {"mvdsp", no_argument, &do_opt_mvdsp, CSKY_ISA_VDSP}, |
| 751 | }; |
| 752 | |
| 753 | size_t md_longopts_size = sizeof (md_longopts); |
| 754 | |
| 755 | static struct csky_insn_info csky_insn; |
| 756 | |
| 757 | static struct hash_control *csky_opcodes_hash; |
| 758 | static struct hash_control *csky_macros_hash; |
| 759 | |
| 760 | static struct csky_macro_info v1_macros_table[] = |
| 761 | { |
| 762 | {"idly", 1, CSKYV1_ISA_E1, csky_idly}, |
| 763 | {"rolc", 2, CSKYV1_ISA_E1, csky_rolc}, |
| 764 | {"rotlc", 2, CSKYV1_ISA_E1, csky_rolc}, |
| 765 | {"sxtrb0", 2, CSKYV1_ISA_E1, csky_sxtrb}, |
| 766 | {"sxtrb1", 2, CSKYV1_ISA_E1, csky_sxtrb}, |
| 767 | {"sxtrb2", 2, CSKYV1_ISA_E1, csky_sxtrb}, |
| 768 | {"movtf", 3, CSKYV1_ISA_E1, csky_movtf}, |
| 769 | {"addc64", 3, CSKYV1_ISA_E1, csky_addc64}, |
| 770 | {"subc64", 3, CSKYV1_ISA_E1, csky_subc64}, |
| 771 | {"or64", 3, CSKYV1_ISA_E1, csky_or64}, |
| 772 | {"xor64", 3, CSKYV1_ISA_E1, csky_xor64}, |
| 773 | {NULL,0,0,0} |
| 774 | }; |
| 775 | |
| 776 | static struct csky_macro_info v2_macros_table[] = |
| 777 | { |
| 778 | {"neg", 1, CSKYV2_ISA_E1, csky_neg}, |
| 779 | {"rsubi", 2, CSKYV2_ISA_1E2, csky_rsubi}, |
| 780 | {"incf", 1, CSKYV2_ISA_1E2, csky_arith}, |
| 781 | {"inct", 1, CSKYV2_ISA_1E2, csky_arith}, |
| 782 | {"decf", 1, CSKYV2_ISA_2E3, csky_arith}, |
| 783 | {"decgt", 1, CSKYV2_ISA_2E3, csky_arith}, |
| 784 | {"declt", 1, CSKYV2_ISA_2E3, csky_arith}, |
| 785 | {"decne", 1, CSKYV2_ISA_1E2, csky_decne}, |
| 786 | {"dect", 1, CSKYV2_ISA_1E2, csky_arith}, |
| 787 | {"lslc", 1, CSKYV2_ISA_1E2, csky_arith}, |
| 788 | {"lsrc", 1, CSKYV2_ISA_1E2, csky_arith}, |
| 789 | {"xsr", 1, CSKYV2_ISA_1E2, csky_arith}, |
| 790 | {NULL,0,0,0} |
| 791 | }; |
| 792 | |
| 793 | /* For option -mnolrw, replace lrw by movih & ori. */ |
| 794 | static struct csky_macro_info v2_lrw_macro_opcode = |
| 795 | {"lrw", 2, CSKYV2_ISA_1E2, csky_lrw}; |
| 796 | |
| 797 | /* This function is used to show errors or warnings. */ |
| 798 | |
| 799 | static void |
| 800 | csky_show_error (enum error_number err, int idx, void *arg1, void *arg2) |
| 801 | { |
| 802 | if (err == ERROR_NONE) |
| 803 | return; |
| 804 | |
| 805 | switch (err) |
| 806 | { |
| 807 | case ERROR_REG_LIST: |
| 808 | case ERROR_OPCODE_PSRBIT: |
| 809 | case ERROR_OPCODE_ILLEGAL: |
| 810 | case ERROR_JMPIX_OVER_RANGE: |
| 811 | case ERROR_MISSING_COMMA: |
| 812 | case ERROR_MISSING_LBRACKET: |
| 813 | case ERROR_MISSING_RBRACKET: |
| 814 | case ERROR_MISSING_LSQUARE_BRACKETS: |
| 815 | case ERROR_MISSING_RSQUARE_BRACKETS: |
| 816 | case ERROR_MISSING_LANGLE_BRACKETS: |
| 817 | case ERROR_MISSING_RANGLE_BRACKETS: |
| 818 | /* Add NULL to fix warnings. */ |
| 819 | as_bad (_(err_formats[err].fmt), NULL); |
| 820 | break; |
| 821 | case ERROR_CREG_ILLEGAL: |
| 822 | case ERROR_GREG_ILLEGAL: |
| 823 | case ERROR_IMM_ILLEGAL: |
| 824 | case ERROR_IMM_OVERFLOW: |
| 825 | case ERROR_EXP_CREG: |
| 826 | case ERROR_EXP_GREG: |
| 827 | case ERROR_EXP_CONSTANT: |
| 828 | case ERROR_EXP_EVEN_FREG: |
| 829 | case ERROR_MISSING_OPERAND: |
| 830 | case ERROR_CPREG_ILLEGAL: |
| 831 | as_bad (_(err_formats[err].fmt), idx); |
| 832 | break; |
| 833 | case ERROR_OPERANDS_NUMBER: |
| 834 | case ERROR_IMM_POWER: |
| 835 | as_bad (_(err_formats[err].fmt), (long)arg1); |
| 836 | break; |
| 837 | |
| 838 | case ERROR_OFFSET_UNALIGNED: |
| 839 | as_bad (_(err_formats[err].fmt), idx, (long)arg1); |
| 840 | break; |
| 841 | case ERROR_RELOC_ILLEGAL: |
| 842 | case ERROR_BAD_END: |
| 843 | case ERROR_OPERANDS_ILLEGAL: |
| 844 | as_bad (_(err_formats[err].fmt), (char *)arg1); |
| 845 | break; |
| 846 | case ERROR_REG_OVER_RANGE: |
| 847 | as_bad (_(err_formats[err].fmt), idx, (long) arg1); |
| 848 | break; |
| 849 | case ERROR_802J_REG_OVER_RANGE: |
| 850 | case ERROR_REG_FORMAT: |
| 851 | as_bad (_(err_formats[err].fmt), idx, (char *)arg1); |
| 852 | break; |
| 853 | case ERROR_UNDEFINE: |
| 854 | /* Add NULL to fix warnings. */ |
| 855 | as_bad ((char *)arg1, NULL); |
| 856 | break; |
| 857 | case WARNING_IDLY: |
| 858 | as_warn (_(err_formats[err].fmt), (long)arg1); |
| 859 | break; |
| 860 | case WARNING_OPTIONS: |
| 861 | as_warn (_(err_formats[err].fmt), (char *)arg1, (char *)arg2); |
| 862 | break; |
| 863 | default: |
| 864 | break; |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | /* Handle errors in branch relaxation. */ |
| 869 | |
| 870 | static void |
| 871 | csky_branch_report_error (const char* file, unsigned int line, |
| 872 | symbolS* sym, offsetT val) |
| 873 | { |
| 874 | as_bad_where (file ? file : _("unknown"), |
| 875 | line, |
| 876 | _("pcrel offset for branch to %s too far (0x%lx)"), |
| 877 | sym ? S_GET_NAME (sym) : _("<unknown>"), |
| 878 | (long) val); |
| 879 | } |
| 880 | |
| 881 | /* Set appropriate flags for the cpu matching STR. */ |
| 882 | |
| 883 | static void |
| 884 | parse_cpu (const char *str) |
| 885 | { |
| 886 | int i = 0; |
| 887 | |
| 888 | for (; csky_cpus[i].name != NULL; i++) |
| 889 | if (strcasecmp (str, csky_cpus[i].name) == 0) |
| 890 | { |
| 891 | mach_flag |= csky_cpus[i].mach_flag; |
| 892 | isa_flag = csky_cpus[i].isa_flag; |
| 893 | other_flag |= (csky_cpus[i].mach_flag & ~CSKY_ARCH_MASK); |
| 894 | return; |
| 895 | } |
| 896 | as_bad (_("unknown cpu `%s'"), str); |
| 897 | } |
| 898 | |
| 899 | /* Set appropriate flags for the arch matching STR. */ |
| 900 | |
| 901 | static void |
| 902 | parse_arch (const char *str) |
| 903 | { |
| 904 | int i = 0; |
| 905 | for (; csky_archs[i].name != NULL; i++) |
| 906 | if (strcasecmp (str, csky_archs[i].name) == 0) |
| 907 | { |
| 908 | arch_flag |= csky_archs[i].arch_flag; |
| 909 | return; |
| 910 | } |
| 911 | as_bad (_("unknown architecture `%s'"), str); |
| 912 | } |
| 913 | |
| 914 | |
| 915 | #ifdef OBJ_ELF |
| 916 | /* Implement the TARGET_FORMAT macro. */ |
| 917 | |
| 918 | const char * |
| 919 | elf32_csky_target_format (void) |
| 920 | { |
| 921 | return (target_big_endian |
| 922 | ? "elf32-csky-big" |
| 923 | : "elf32-csky-little"); |
| 924 | } |
| 925 | #endif |
| 926 | |
| 927 | /* Turn an integer of n bytes (in val) into a stream of bytes appropriate |
| 928 | for use in the a.out file, and stores them in the array pointed to by buf. |
| 929 | This knows about the endian-ness of the target machine and does |
| 930 | THE RIGHT THING, whatever it is. Possible values for n are 1 (byte) |
| 931 | 2 (short) and 4 (long) Floating numbers are put out as a series of |
| 932 | LITTLENUMS (shorts, here at least). */ |
| 933 | |
| 934 | void |
| 935 | md_number_to_chars (char * buf, valueT val, int n) |
| 936 | { |
| 937 | if (target_big_endian) |
| 938 | number_to_chars_bigendian (buf, val, n); |
| 939 | else |
| 940 | number_to_chars_littleendian (buf, val, n); |
| 941 | } |
| 942 | |
| 943 | /* Get a log2(val). */ |
| 944 | |
| 945 | static int |
| 946 | csky_log_2 (unsigned int val) |
| 947 | { |
| 948 | int log = -1; |
| 949 | if ((val & (val - 1)) == 0) |
| 950 | for (; val; val >>= 1) |
| 951 | log ++; |
| 952 | else |
| 953 | csky_show_error (ERROR_IMM_POWER, 0, (void *)(long)val, NULL); |
| 954 | return log; |
| 955 | } |
| 956 | |
| 957 | /* Output one instruction to the buffer at PTR. */ |
| 958 | |
| 959 | static void |
| 960 | csky_write_insn (char *ptr, valueT use, int nbytes) |
| 961 | { |
| 962 | if (nbytes == 2) |
| 963 | md_number_to_chars (ptr, use, nbytes); |
| 964 | else /* 32-bit instruction. */ |
| 965 | { |
| 966 | /* Significant figures are in low bits. */ |
| 967 | md_number_to_chars (ptr, use >> 16, 2); |
| 968 | md_number_to_chars (ptr + 2, use & 0xFFFF, 2); |
| 969 | } |
| 970 | } |
| 971 | |
| 972 | /* Read an NBYTES instruction from the buffer at PTR. NBYTES should |
| 973 | be either 2 or 4. This function is used in branch relaxation. */ |
| 974 | |
| 975 | static valueT |
| 976 | csky_read_insn (char *ptr, int nbytes) |
| 977 | { |
| 978 | unsigned char *uptr = (unsigned char *)ptr; |
| 979 | valueT v = 0; |
| 980 | int lo, hi; /* hi/lo byte index in binary stream. */ |
| 981 | |
| 982 | if (target_big_endian) |
| 983 | { |
| 984 | hi = 0; |
| 985 | lo = 1; |
| 986 | } |
| 987 | else |
| 988 | { |
| 989 | hi = 1; |
| 990 | lo = 0; |
| 991 | } |
| 992 | v = uptr[lo] | (uptr[hi] << 8); |
| 993 | if (nbytes == 4) |
| 994 | { |
| 995 | v <<= 16; |
| 996 | v |= uptr[lo + 2] | (uptr[hi + 2] << 8); |
| 997 | } |
| 998 | return v; |
| 999 | } |
| 1000 | |
| 1001 | /* Construct a label name into S from the 3-character prefix P and |
| 1002 | number N formatted as a 4-digit hex number. */ |
| 1003 | |
| 1004 | static void |
| 1005 | make_internal_label (char *s, const char *p, int n) |
| 1006 | { |
| 1007 | static const char hex[] = "0123456789ABCDEF"; |
| 1008 | |
| 1009 | s[0] = p[0]; |
| 1010 | s[1] = p[1]; |
| 1011 | s[2] = p[2]; |
| 1012 | s[3] = hex[(n >> 12) & 0xF]; |
| 1013 | s[4] = hex[(n >> 8) & 0xF]; |
| 1014 | s[5] = hex[(n >> 4) & 0xF]; |
| 1015 | s[6] = hex[(n) & 0xF]; |
| 1016 | s[7] = 0; |
| 1017 | } |
| 1018 | |
| 1019 | /* md_operand is a no-op on C-SKY; we do everything elsewhere. */ |
| 1020 | |
| 1021 | void |
| 1022 | md_operand (expressionS *expressionP ATTRIBUTE_UNUSED) |
| 1023 | { |
| 1024 | return; |
| 1025 | } |
| 1026 | |
| 1027 | /* Under ELF we need to default _GLOBAL_OFFSET_TABLE. |
| 1028 | Otherwise we have no need to default values of symbols. */ |
| 1029 | |
| 1030 | symbolS * |
| 1031 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
| 1032 | { |
| 1033 | #ifdef OBJ_ELF |
| 1034 | /* TODO: */ |
| 1035 | #endif |
| 1036 | return NULL; |
| 1037 | } |
| 1038 | |
| 1039 | /* Use IEEE format for floating-point constants. */ |
| 1040 | |
| 1041 | const char * |
| 1042 | md_atof (int type, char *litP, int *sizeP) |
| 1043 | { |
| 1044 | return ieee_md_atof (type, litP, sizeP, target_big_endian); |
| 1045 | } |
| 1046 | |
| 1047 | /* Print option help to FP. */ |
| 1048 | |
| 1049 | void |
| 1050 | md_show_usage (FILE *fp) |
| 1051 | { |
| 1052 | int i, n; |
| 1053 | const int margin = 48; |
| 1054 | |
| 1055 | fprintf (fp, _("C-SKY assembler options:\n")); |
| 1056 | |
| 1057 | fprintf (fp, _("\ |
| 1058 | -march=ARCH select architecture ARCH:")); |
| 1059 | for (i = 0, n = margin; csky_archs[i].name != NULL; i++) |
| 1060 | { |
| 1061 | int l = strlen (csky_archs[i].name); |
| 1062 | if (n + l >= margin) |
| 1063 | { |
| 1064 | fprintf (fp, "\n\t\t\t\t"); |
| 1065 | n = l; |
| 1066 | } |
| 1067 | else |
| 1068 | { |
| 1069 | fprintf (fp, " "); |
| 1070 | n += l + 1; |
| 1071 | } |
| 1072 | fprintf (fp, "%s", csky_archs[i].name); |
| 1073 | } |
| 1074 | fprintf (fp, "\n"); |
| 1075 | |
| 1076 | fprintf (fp, _("\ |
| 1077 | -mcpu=CPU select processor CPU:")); |
| 1078 | for (i = 0, n = margin; csky_cpus[i].name != NULL; i++) |
| 1079 | { |
| 1080 | int l = strlen (csky_cpus[i].name); |
| 1081 | if (n + l >= margin) |
| 1082 | { |
| 1083 | fprintf (fp, "\n\t\t\t\t"); |
| 1084 | n = l; |
| 1085 | } |
| 1086 | else |
| 1087 | { |
| 1088 | fprintf (fp, " "); |
| 1089 | n += l + 1; |
| 1090 | } |
| 1091 | fprintf (fp, "%s", csky_cpus[i].name); |
| 1092 | } |
| 1093 | fprintf (fp, "\n"); |
| 1094 | |
| 1095 | fprintf (fp, _("\ |
| 1096 | -EL -mlittle-endian generate little-endian output\n")); |
| 1097 | fprintf (fp, _("\ |
| 1098 | -EB -mbig-endian generate big-endian output\n")); |
| 1099 | fprintf (fp, _("\ |
| 1100 | -fpic -pic generate position-independent code\n")); |
| 1101 | |
| 1102 | fprintf (fp, _("\ |
| 1103 | -mljump transform jbf, jbt, jbr to jmpi (CK800 only)\n")); |
| 1104 | fprintf (fp, _("\ |
| 1105 | -mno-ljump\n")); |
| 1106 | |
| 1107 | #ifdef INCLUDE_BRANCH_STUB |
| 1108 | fprintf (fp, _("\ |
| 1109 | -mbranch-stub enable branch stubs for PC-relative calls\n")); |
| 1110 | fprintf (fp, _("\ |
| 1111 | -mno-branch-stub\n")); |
| 1112 | #endif |
| 1113 | |
| 1114 | fprintf (fp, _("\ |
| 1115 | -force2bsr -mforce2bsr transform jbsr to bsr\n")); |
| 1116 | fprintf (fp, _("\ |
| 1117 | -no-force2bsr -mno-force2bsr\n")); |
| 1118 | fprintf (fp, _("\ |
| 1119 | -jsri2bsr -mjsri2bsr transform jsri to bsr\n")); |
| 1120 | fprintf (fp, _("\ |
| 1121 | -no-jsri2bsr -mno-jsri2bsr\n")); |
| 1122 | |
| 1123 | fprintf (fp, _("\ |
| 1124 | -mnolrw -mno-lrw implement lrw as movih + ori\n")); |
| 1125 | fprintf (fp, _("\ |
| 1126 | -melrw enable extended lrw (CK800 only)\n")); |
| 1127 | fprintf (fp, _("\ |
| 1128 | -mno-elrw\n")); |
| 1129 | |
| 1130 | fprintf (fp, _("\ |
| 1131 | -mlaf -mliterals-after-func emit literals after each function\n")); |
| 1132 | fprintf (fp, _("\ |
| 1133 | -mno-laf -mno-literals-after-func\n")); |
| 1134 | fprintf (fp, _("\ |
| 1135 | -mlabr -mliterals-after-br emit literals after branch instructions\n")); |
| 1136 | fprintf (fp, _("\ |
| 1137 | -mno-labr -mnoliterals-after-br\n")); |
| 1138 | |
| 1139 | fprintf (fp, _("\ |
| 1140 | -mistack enable interrupt stack instructions\n")); |
| 1141 | fprintf (fp, _("\ |
| 1142 | -mno-istack\n")); |
| 1143 | |
| 1144 | fprintf (fp, _("\ |
| 1145 | -mhard-float enable hard float instructions\n")); |
| 1146 | fprintf (fp, _("\ |
| 1147 | -mmp enable multiprocessor instructions\n")); |
| 1148 | fprintf (fp, _("\ |
| 1149 | -mcp enable coprocessor instructions\n")); |
| 1150 | fprintf (fp, _("\ |
| 1151 | -mcache enable cache prefetch instruction\n")); |
| 1152 | fprintf (fp, _("\ |
| 1153 | -msecurity enable security instructions\n")); |
| 1154 | fprintf (fp, _("\ |
| 1155 | -mtrust enable trust instructions\n")); |
| 1156 | fprintf (fp, _("\ |
| 1157 | -mdsp enable DSP instructions\n")); |
| 1158 | fprintf (fp, _("\ |
| 1159 | -medsp enable enhanced DSP instructions\n")); |
| 1160 | fprintf (fp, _("\ |
| 1161 | -mvdsp enable vector DSP instructions\n")); |
| 1162 | } |
| 1163 | |
| 1164 | /* Target-specific initialization and option handling. */ |
| 1165 | |
| 1166 | void |
| 1167 | md_begin (void) |
| 1168 | { |
| 1169 | unsigned int bfd_mach_flag = 0; |
| 1170 | struct csky_opcode const *opcode; |
| 1171 | struct csky_macro_info const *macro; |
| 1172 | struct csky_arch_info const *p_arch; |
| 1173 | struct csky_cpu_info const *p_cpu; |
| 1174 | unsigned int flags = (other_flag | do_opt_mmp | do_opt_mcp | do_opt_mcache |
| 1175 | | do_opt_msecurity | do_opt_mhard_float); |
| 1176 | dsp_flag |= do_opt_mdsp | do_opt_medsp; |
| 1177 | isa_flag |= do_opt_mtrust | do_opt_mvdsp; |
| 1178 | |
| 1179 | if (dsp_flag) |
| 1180 | flags |= CSKY_ARCH_DSP; |
| 1181 | |
| 1182 | if (mach_flag != 0) |
| 1183 | { |
| 1184 | if ((mach_flag & CSKY_ARCH_MASK) != arch_flag && arch_flag != 0) |
| 1185 | as_warn (_("-mcpu conflict with -march option, using -mcpu")); |
| 1186 | if ((mach_flag & ~CSKY_ARCH_MASK) != flags && flags != 0) |
| 1187 | as_warn (_("-mcpu conflict with other model parameters, using -mcpu")); |
| 1188 | } |
| 1189 | else if (arch_flag != 0) |
| 1190 | mach_flag |= arch_flag | flags; |
| 1191 | else |
| 1192 | { |
| 1193 | #ifdef TARGET_WITH_CPU |
| 1194 | int i = 0; |
| 1195 | for (; csky_cpus[i].name != NULL; i++) |
| 1196 | { |
| 1197 | if (strcmp (TARGET_WITH_CPU, csky_cpus[i].name) == 0) |
| 1198 | { |
| 1199 | mach_flag |= csky_cpus[i].mach_flag; |
| 1200 | isa_flag = csky_cpus[i].isa_flag; |
| 1201 | break; |
| 1202 | } |
| 1203 | } |
| 1204 | #else |
| 1205 | #if _CSKY_ABI==1 |
| 1206 | mach_flag |= CSKY_ARCH_610 | flags; |
| 1207 | #else |
| 1208 | mach_flag |= CSKY_ARCH_810_BASE | flags; |
| 1209 | #endif |
| 1210 | #endif |
| 1211 | } |
| 1212 | |
| 1213 | if (IS_CSKY_ARCH_610 (mach_flag) || IS_CSKY_ARCH_510 (mach_flag)) |
| 1214 | { |
| 1215 | if ((mach_flag & CSKY_ARCH_MP) && (mach_flag & CSKY_ARCH_MAC)) |
| 1216 | as_fatal ("520/620 conflicts with -mmp option"); |
| 1217 | else if ((mach_flag & CSKY_ARCH_MP) && (mach_flag & CSKY_ARCH_DSP)) |
| 1218 | as_fatal ("510e/610e conflicts with -mmp option"); |
| 1219 | else if ((mach_flag & CSKY_ARCH_DSP) && (mach_flag & CSKY_ARCH_MAC)) |
| 1220 | as_fatal ("520/620 conflicts with 510e/610e or -mdsp option"); |
| 1221 | } |
| 1222 | if (IS_CSKY_ARCH_510 (mach_flag) && (mach_flag & CSKY_ARCH_FLOAT)) |
| 1223 | { |
| 1224 | mach_flag = (mach_flag & (~CSKY_ARCH_MASK)); |
| 1225 | mach_flag |= CSKY_ARCH_610; |
| 1226 | } |
| 1227 | |
| 1228 | /* Find bfd_mach_flag, it will set to bfd backend data. */ |
| 1229 | for (p_arch = csky_archs; p_arch->arch_flag != 0; p_arch++) |
| 1230 | if ((mach_flag & CSKY_ARCH_MASK) == (p_arch->arch_flag & CSKY_ARCH_MASK)) |
| 1231 | { |
| 1232 | bfd_mach_flag = p_arch->bfd_mach_flag; |
| 1233 | break; |
| 1234 | } |
| 1235 | |
| 1236 | /* Find isa_flag. */ |
| 1237 | for (p_cpu = csky_cpus; p_cpu->mach_flag != 0; p_cpu++) |
| 1238 | if ((mach_flag & CPU_ARCH_MASK) == p_cpu->mach_flag) |
| 1239 | { |
| 1240 | isa_flag |= p_cpu->isa_flag; |
| 1241 | break; |
| 1242 | } |
| 1243 | |
| 1244 | /* Check if -mdsp and -medsp conflict. If cpu is ck803, we will |
| 1245 | use enhanced dsp instruction. Otherwise, we will use normal dsp. */ |
| 1246 | if (dsp_flag) |
| 1247 | { |
| 1248 | if (IS_CSKY_ARCH_803 (mach_flag)) |
| 1249 | { |
| 1250 | /* In 803, dspv1 is conflict with dspv2. We keep dspv2. */ |
| 1251 | if ((dsp_flag & CSKY_DSP_FLAG_V1) && (dsp_flag & CSKY_DSP_FLAG_V2)) |
| 1252 | as_warn (_("option -mdsp conflicts with -medsp, only enabling -medsp")); |
| 1253 | isa_flag &= ~(CSKY_ISA_MAC_DSP | CSKY_ISA_DSP); |
| 1254 | isa_flag |= CSKY_ISA_DSP_ENHANCE; |
| 1255 | } |
| 1256 | else |
| 1257 | { |
| 1258 | isa_flag &= ~CSKY_ISA_DSP_ENHANCE; |
| 1259 | as_warn (_("-medsp option is only supported by ck803s, ignoring -medsp")); |
| 1260 | } |
| 1261 | ; |
| 1262 | } |
| 1263 | |
| 1264 | if (do_use_branchstub == -1) |
| 1265 | do_use_branchstub = !IS_CSKY_ARCH_V1 (mach_flag); |
| 1266 | else if (do_use_branchstub == 1) |
| 1267 | { |
| 1268 | if (IS_CSKY_ARCH_V1 (mach_flag)) |
| 1269 | { |
| 1270 | as_warn (_("C-SKY ABI v1 (ck510/ck610) does not support -mbranch-stub")); |
| 1271 | do_use_branchstub = 0; |
| 1272 | } |
| 1273 | else if (do_force2bsr == 0) |
| 1274 | { |
| 1275 | as_warn (_("-mno-force2bsr is ignored with -mbranch-stub")); |
| 1276 | do_force2bsr = 1; |
| 1277 | } |
| 1278 | } |
| 1279 | |
| 1280 | if (IS_CSKY_ARCH_801 (mach_flag) || IS_CSKY_ARCH_802 (mach_flag)) |
| 1281 | { |
| 1282 | if (!do_force2bsr) |
| 1283 | as_warn (_("-mno-force2bsr is ignored for ck801/ck802")); |
| 1284 | do_force2bsr = 1; |
| 1285 | } |
| 1286 | else if (do_force2bsr == -1) |
| 1287 | do_force2bsr = do_use_branchstub; |
| 1288 | |
| 1289 | if (do_pff == -1) |
| 1290 | { |
| 1291 | if (IS_CSKY_ARCH_V1 (mach_flag)) |
| 1292 | do_pff = 1; |
| 1293 | else |
| 1294 | do_pff = 0; |
| 1295 | } |
| 1296 | |
| 1297 | if (do_extend_lrw == -1) |
| 1298 | { |
| 1299 | if (IS_CSKY_ARCH_801 (mach_flag)) |
| 1300 | do_extend_lrw = 1; |
| 1301 | else |
| 1302 | do_extend_lrw = 0; |
| 1303 | } |
| 1304 | if (IS_CSKY_ARCH_801 (mach_flag) || IS_CSKY_ARCH_802 (mach_flag)) |
| 1305 | { |
| 1306 | if (do_long_jump > 0) |
| 1307 | as_warn (_("-mljump is ignored for ck801/ck802")); |
| 1308 | do_long_jump = 0; |
| 1309 | } |
| 1310 | else if (do_long_jump == -1) |
| 1311 | do_long_jump = 1; |
| 1312 | if (do_intr_stack == -1) |
| 1313 | { |
| 1314 | /* control interrupt stack module, 801&802&803 default on |
| 1315 | 807&810, default off. */ |
| 1316 | if (IS_CSKY_ARCH_807 (mach_flag) || IS_CSKY_ARCH_810 (mach_flag)) |
| 1317 | do_intr_stack = 0; |
| 1318 | else |
| 1319 | do_intr_stack = 1; |
| 1320 | } |
| 1321 | /* TODO: add isa_flag(SIMP/CACHE/APS). */ |
| 1322 | isa_flag |= (mach_flag & CSKY_ARCH_MAC) ? CSKY_ISA_MAC : 0; |
| 1323 | isa_flag |= (mach_flag & CSKY_ARCH_MP) ? CSKY_ISA_MP : 0; |
| 1324 | isa_flag |= (mach_flag & CSKY_ARCH_CP) ? CSKY_ISA_CP : 0; |
| 1325 | |
| 1326 | /* Set abi flag and get table address. */ |
| 1327 | if (IS_CSKY_ARCH_V1 (mach_flag)) |
| 1328 | { |
| 1329 | mach_flag = mach_flag | CSKY_ABI_V1; |
| 1330 | opcode = csky_v1_opcodes; |
| 1331 | macro = v1_macros_table; |
| 1332 | SPANPANIC = v1_SPANPANIC; |
| 1333 | SPANCLOSE = v1_SPANCLOSE; |
| 1334 | SPANEXIT = v1_SPANEXIT; |
| 1335 | md_relax_table = csky_relax_table; |
| 1336 | } |
| 1337 | else |
| 1338 | { |
| 1339 | mach_flag = mach_flag | CSKY_ABI_V2; |
| 1340 | opcode = csky_v2_opcodes; |
| 1341 | macro = v2_macros_table; |
| 1342 | SPANPANIC = v2_SPANPANIC; |
| 1343 | if (do_extend_lrw) |
| 1344 | { |
| 1345 | SPANCLOSE = v2_SPANCLOSE_ELRW; |
| 1346 | SPANEXIT = v2_SPANEXIT_ELRW; |
| 1347 | } |
| 1348 | else |
| 1349 | { |
| 1350 | SPANCLOSE = v2_SPANCLOSE; |
| 1351 | SPANEXIT = v2_SPANEXIT; |
| 1352 | } |
| 1353 | md_relax_table = csky_relax_table; |
| 1354 | } |
| 1355 | |
| 1356 | /* Establish hash table for opcodes and macros. */ |
| 1357 | csky_macros_hash = hash_new (); |
| 1358 | csky_opcodes_hash = hash_new (); |
| 1359 | for ( ; opcode->mnemonic != NULL; opcode++) |
| 1360 | if ((isa_flag & (opcode->isa_flag16 | opcode->isa_flag32)) != 0) |
| 1361 | hash_insert (csky_opcodes_hash, opcode->mnemonic, (char *)opcode); |
| 1362 | for ( ; macro->name != NULL; macro++) |
| 1363 | if ((isa_flag & macro->isa_flag) != 0) |
| 1364 | hash_insert (csky_macros_hash, macro->name, (char *)macro); |
| 1365 | if (do_nolrw && (isa_flag & CSKYV2_ISA_1E2) != 0) |
| 1366 | hash_insert (csky_macros_hash, |
| 1367 | v2_lrw_macro_opcode.name, |
| 1368 | (char *)&v2_lrw_macro_opcode); |
| 1369 | /* Set e_flag to ELF Head. */ |
| 1370 | bfd_set_private_flags (stdoutput, mach_flag); |
| 1371 | /* Set bfd_mach to bfd backend data. */ |
| 1372 | bfd_set_arch_mach (stdoutput, bfd_arch_csky, bfd_mach_flag); |
| 1373 | } |
| 1374 | |
| 1375 | /* The C-SKY assembler emits mapping symbols $t and $d to mark the |
| 1376 | beginning of a sequence of instructions and data (such as a constant pool), |
| 1377 | respectively. This is similar to what ARM does. */ |
| 1378 | |
| 1379 | static void |
| 1380 | make_mapping_symbol (map_state state, valueT value, fragS *frag) |
| 1381 | { |
| 1382 | symbolS * symbolP; |
| 1383 | const char * symname; |
| 1384 | int type; |
| 1385 | switch (state) |
| 1386 | { |
| 1387 | case MAP_DATA: |
| 1388 | symname = "$d"; |
| 1389 | type = BSF_NO_FLAGS; |
| 1390 | break; |
| 1391 | case MAP_TEXT: |
| 1392 | symname = "$t"; |
| 1393 | type = BSF_NO_FLAGS; |
| 1394 | break; |
| 1395 | default: |
| 1396 | abort (); |
| 1397 | } |
| 1398 | |
| 1399 | symbolP = symbol_new (symname, now_seg, value, frag); |
| 1400 | symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL; |
| 1401 | } |
| 1402 | |
| 1403 | /* We need to keep track of whether we are emitting code or data; this |
| 1404 | function switches state and emits a mapping symbol if necessary. */ |
| 1405 | |
| 1406 | static void |
| 1407 | mapping_state (map_state state) |
| 1408 | { |
| 1409 | map_state current_state |
| 1410 | = seg_info (now_seg)->tc_segment_info_data.current_state; |
| 1411 | |
| 1412 | if (current_state == state) |
| 1413 | return; |
| 1414 | else if (current_state == MAP_UNDEFINED && state == MAP_DATA) |
| 1415 | return; |
| 1416 | else if (current_state == MAP_UNDEFINED && state == MAP_TEXT) |
| 1417 | { |
| 1418 | struct frag * const frag_first = seg_info (now_seg)->frchainP->frch_root; |
| 1419 | if (frag_now != frag_first || frag_now_fix () > 0) |
| 1420 | make_mapping_symbol (MAP_DATA, (valueT) 0, frag_first); |
| 1421 | } |
| 1422 | |
| 1423 | seg_info (now_seg)->tc_segment_info_data.current_state = state; |
| 1424 | make_mapping_symbol (state, (valueT) frag_now_fix (), frag_now); |
| 1425 | } |
| 1426 | |
| 1427 | /* Dump the literal pool. */ |
| 1428 | |
| 1429 | static void |
| 1430 | dump_literals (int isforce) |
| 1431 | { |
| 1432 | #define CSKYV1_BR_INSN 0xF000 |
| 1433 | #define CSKYV2_BR_INSN 0x0400 |
| 1434 | unsigned int i; |
| 1435 | struct literal * p; |
| 1436 | symbolS * brarsym = NULL; |
| 1437 | |
| 1438 | /* V1 nop encoding: 0x1200 : mov r0, r0. */ |
| 1439 | static char v1_nop_insn_big[2] = {0x12, 0x00}; |
| 1440 | static char v1_nop_insn_little[2] = {0x00, 0x12}; |
| 1441 | |
| 1442 | if (poolsize == 0) |
| 1443 | return; |
| 1444 | |
| 1445 | /* Must we branch around the literal table? */ |
| 1446 | if (isforce) |
| 1447 | { |
| 1448 | char brarname[8]; |
| 1449 | make_internal_label (brarname, POOL_END_LABEL, poolnumber); |
| 1450 | brarsym = symbol_make (brarname); |
| 1451 | symbol_table_insert (brarsym); |
| 1452 | mapping_state (MAP_TEXT); |
| 1453 | if (IS_CSKY_ARCH_V1 (mach_flag)) |
| 1454 | { |
| 1455 | csky_insn.output |
| 1456 | = frag_var (rs_machine_dependent, |
| 1457 | csky_relax_table[C (UNCD_JUMP_S, DISP32)].rlx_length, |
| 1458 | csky_relax_table[C (UNCD_JUMP_S, DISP12)].rlx_length, |
| 1459 | C (UNCD_JUMP_S, 0), brarsym, 0, 0); |
| 1460 | md_number_to_chars (csky_insn.output, CSKYV1_BR_INSN, 2); |
| 1461 | } |
| 1462 | else |
| 1463 | { |
| 1464 | csky_insn.output |
| 1465 | = frag_var (rs_machine_dependent, |
| 1466 | UNCD_DISP16_LEN, |
| 1467 | UNCD_DISP10_LEN, |
| 1468 | UNCD_DISP10, |
| 1469 | brarsym, 0, 0); |
| 1470 | md_number_to_chars (csky_insn.output, CSKYV2_BR_INSN, 2); |
| 1471 | } |
| 1472 | } |
| 1473 | /* Make sure that the section is sufficiently aligned and that |
| 1474 | the literal table is aligned within it. */ |
| 1475 | if (do_pff) |
| 1476 | { |
| 1477 | valueT br_self; |
| 1478 | csky_insn.output = frag_more (2); |
| 1479 | /* .Lxx: br .Lxx */ |
| 1480 | if (IS_CSKY_V1 (mach_flag)) |
| 1481 | br_self = CSKYV1_BR_INSN | 0x7ff; |
| 1482 | else |
| 1483 | br_self = CSKYV2_BR_INSN; |
| 1484 | md_number_to_chars (csky_insn.output, br_self, 2); |
| 1485 | if (!isforce) |
| 1486 | { |
| 1487 | csky_insn.output = frag_more (2); |
| 1488 | /* .Lxx: br .Lxx */ |
| 1489 | md_number_to_chars (csky_insn.output, br_self, 2); |
| 1490 | } |
| 1491 | } |
| 1492 | mapping_state (MAP_DATA); |
| 1493 | |
| 1494 | record_alignment (now_seg, 2); |
| 1495 | if (IS_CSKY_ARCH_V1 (mach_flag)) |
| 1496 | frag_align_pattern (2, |
| 1497 | (target_big_endian |
| 1498 | ? v1_nop_insn_big : v1_nop_insn_little), |
| 1499 | 2, 0); |
| 1500 | else |
| 1501 | frag_align (2, 0, 3); |
| 1502 | |
| 1503 | colon (S_GET_NAME (poolsym)); |
| 1504 | |
| 1505 | for (i = 0, p = litpool; i < poolsize; i += (p->isdouble ? 2 : 1), p++) |
| 1506 | { |
| 1507 | insn_reloc = p->r_type; |
| 1508 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_IE32 |
| 1509 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 1510 | || insn_reloc == BFD_RELOC_CKCORE_TLS_GD32) |
| 1511 | literal_insn_offset = p; |
| 1512 | if (p->isdouble) |
| 1513 | { |
| 1514 | if (target_big_endian) |
| 1515 | { |
| 1516 | p->e.X_add_number = p->dbnum >> 32; |
| 1517 | emit_expr (& p->e, 4); |
| 1518 | p->e.X_add_number = p->dbnum & 0xffffffff; |
| 1519 | emit_expr (& p->e, 4); |
| 1520 | } |
| 1521 | else |
| 1522 | { |
| 1523 | p->e.X_add_number = p->dbnum & 0xffffffff; |
| 1524 | emit_expr (& p->e, 4); |
| 1525 | p->e.X_add_number = p->dbnum >> 32; |
| 1526 | emit_expr (& p->e, 4); |
| 1527 | } |
| 1528 | } |
| 1529 | else |
| 1530 | emit_expr (& p->e, 4); |
| 1531 | } |
| 1532 | |
| 1533 | if (isforce && IS_CSKY_ARCH_V2 (mach_flag)) |
| 1534 | { |
| 1535 | /* Add one nop insn at end of literal for disassembler. */ |
| 1536 | mapping_state (MAP_TEXT); |
| 1537 | csky_insn.output = frag_more (2); |
| 1538 | md_number_to_chars (csky_insn.output, CSKYV2_INST_NOP, 2); |
| 1539 | } |
| 1540 | |
| 1541 | insn_reloc = BFD_RELOC_NONE; |
| 1542 | |
| 1543 | if (brarsym != NULL) |
| 1544 | colon (S_GET_NAME (brarsym)); |
| 1545 | poolsize = 0; |
| 1546 | } |
| 1547 | |
| 1548 | static int |
| 1549 | enter_literal (expressionS *e, |
| 1550 | int ispcrel, |
| 1551 | unsigned char isdouble, |
| 1552 | uint64_t dbnum) |
| 1553 | { |
| 1554 | unsigned int i; |
| 1555 | struct literal * p; |
| 1556 | if (poolsize >= MAX_POOL_SIZE - 2) |
| 1557 | { |
| 1558 | /* The literal pool is as full as we can handle. We have |
| 1559 | to be 2 entries shy of the 1024/4=256 entries because we |
| 1560 | have to allow for the branch (2 bytes) and the alignment |
| 1561 | (2 bytes before the first insn referencing the pool and |
| 1562 | 2 bytes before the pool itself) == 6 bytes, rounds up |
| 1563 | to 2 entries. */ |
| 1564 | |
| 1565 | /* Save the parsed symbol's reloc. */ |
| 1566 | enum bfd_reloc_code_real last_reloc_before_dump = insn_reloc; |
| 1567 | dump_literals (1); |
| 1568 | insn_reloc = last_reloc_before_dump; |
| 1569 | } |
| 1570 | |
| 1571 | if (poolsize == 0) |
| 1572 | { |
| 1573 | /* Create new literal pool. */ |
| 1574 | if (++ poolnumber > 0xFFFF) |
| 1575 | as_fatal (_("more than 65K literal pools")); |
| 1576 | |
| 1577 | make_internal_label (poolname, POOL_START_LABEL, poolnumber); |
| 1578 | poolsym = symbol_make (poolname); |
| 1579 | symbol_table_insert (poolsym); |
| 1580 | poolspan = 0; |
| 1581 | } |
| 1582 | |
| 1583 | /* Search pool for value so we don't have duplicates. */ |
| 1584 | for (p = litpool, i = 0; i < poolsize; i += (p->isdouble ? 2 : 1), p++) |
| 1585 | { |
| 1586 | if (e->X_op == p->e.X_op |
| 1587 | && e->X_add_symbol == p->e.X_add_symbol |
| 1588 | && e->X_add_number == p->e.X_add_number |
| 1589 | && ispcrel == p->ispcrel |
| 1590 | && insn_reloc == p->r_type |
| 1591 | && isdouble == p->isdouble |
| 1592 | && insn_reloc != BFD_RELOC_CKCORE_TLS_GD32 |
| 1593 | && insn_reloc != BFD_RELOC_CKCORE_TLS_LDM32 |
| 1594 | && insn_reloc != BFD_RELOC_CKCORE_TLS_LDO32 |
| 1595 | && insn_reloc != BFD_RELOC_CKCORE_TLS_IE32 |
| 1596 | && insn_reloc != BFD_RELOC_CKCORE_TLS_LE32) |
| 1597 | { |
| 1598 | p->refcnt ++; |
| 1599 | return i; |
| 1600 | } |
| 1601 | } |
| 1602 | p->refcnt = 1; |
| 1603 | p->ispcrel = ispcrel; |
| 1604 | p->e = *e; |
| 1605 | p->r_type = insn_reloc; |
| 1606 | p->isdouble = isdouble; |
| 1607 | if (isdouble) |
| 1608 | p->dbnum = dbnum; |
| 1609 | |
| 1610 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 1611 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 1612 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 1613 | { |
| 1614 | p->tls_addend.frag = frag_now; |
| 1615 | p->tls_addend.offset = csky_insn.output - frag_now->fr_literal; |
| 1616 | literal_insn_offset = p; |
| 1617 | } |
| 1618 | poolsize += (p->isdouble ? 2 : 1); |
| 1619 | return i; |
| 1620 | } |
| 1621 | |
| 1622 | /* Check whether we must dump the literal pool here. |
| 1623 | kind == 0 is any old instruction. |
| 1624 | kind > 0 means we just had a control transfer instruction. |
| 1625 | kind == 1 means within a function. |
| 1626 | kind == 2 means we just left a function. |
| 1627 | |
| 1628 | OFFSET is the length of the insn being processed. |
| 1629 | |
| 1630 | SPANCLOSE and SPANEXIT are smaller numbers than SPANPANIC. |
| 1631 | SPANPANIC means that we must dump now. |
| 1632 | The dump_literals (1) call inserts a branch around the table, so |
| 1633 | we first look to see if its a situation where we won't have to |
| 1634 | insert a branch (e.g., the previous instruction was an unconditional |
| 1635 | branch). |
| 1636 | |
| 1637 | SPANPANIC is the point where we must dump a single-entry pool. |
| 1638 | it accounts for alignments and an inserted branch. |
| 1639 | the 'poolsize*2' accounts for the scenario where we do: |
| 1640 | lrw r1,lit1; lrw r2,lit2; lrw r3,lit3 |
| 1641 | Note that the 'lit2' reference is 2 bytes further along |
| 1642 | but the literal it references will be 4 bytes further along, |
| 1643 | so we must consider the poolsize into this equation. |
| 1644 | This is slightly over-cautious, but guarantees that we won't |
| 1645 | panic because a relocation is too distant. */ |
| 1646 | |
| 1647 | static void |
| 1648 | check_literals (int kind, int offset) |
| 1649 | { |
| 1650 | poolspan += offset; |
| 1651 | |
| 1652 | if ((poolspan > SPANEXIT || do_func_dump) |
| 1653 | && kind > 1 |
| 1654 | && (do_br_dump || do_func_dump)) |
| 1655 | dump_literals (0); |
| 1656 | else if (poolspan > SPANCLOSE && (kind > 0) && do_br_dump) |
| 1657 | dump_literals (0); |
| 1658 | else if (poolspan |
| 1659 | >= (SPANPANIC - (IS_CSKY_ARCH_V1 (mach_flag) ? poolsize * 2 : 0))) |
| 1660 | dump_literals (1); |
| 1661 | /* We have not dumped literal pool before insn1, |
| 1662 | and will not dump literal pool between insn1 and insnN+1, |
| 1663 | so reset poolspan to original length. */ |
| 1664 | else if (do_noliteraldump == 1) |
| 1665 | poolspan -= offset; |
| 1666 | |
| 1667 | if (do_noliteraldump == 1) |
| 1668 | do_noliteraldump = 0; |
| 1669 | } |
| 1670 | |
| 1671 | /* The next group of functions are helpers for parsing various kinds |
| 1672 | of instruction operand syntax. */ |
| 1673 | |
| 1674 | /* Parse operands of the form |
| 1675 | <symbol>@GOTOFF+<nnn> |
| 1676 | and similar .plt or .got references. |
| 1677 | |
| 1678 | If we find one, set up the correct relocation in RELOC and copy the |
| 1679 | input string, minus the `@GOTOFF' into a malloc'd buffer for |
| 1680 | parsing by the calling routine. Return this buffer, and if ADJUST |
| 1681 | is non-null set it to the length of the string we removed from the |
| 1682 | input line. Otherwise return NULL. */ |
| 1683 | |
| 1684 | static char * |
| 1685 | lex_got (enum bfd_reloc_code_real *reloc, |
| 1686 | int *adjust) |
| 1687 | { |
| 1688 | struct _gotrel |
| 1689 | { |
| 1690 | const char *str; |
| 1691 | const enum bfd_reloc_code_real rel; |
| 1692 | }; |
| 1693 | static const struct _gotrel gotrel[] = |
| 1694 | { |
| 1695 | { "GOTOFF", BFD_RELOC_CKCORE_GOTOFF }, |
| 1696 | { "GOTPC", BFD_RELOC_CKCORE_GOTPC }, |
| 1697 | { "GOTTPOFF", BFD_RELOC_CKCORE_TLS_IE32 }, |
| 1698 | { "GOT", BFD_RELOC_CKCORE_GOT32 }, |
| 1699 | { "PLT", BFD_RELOC_CKCORE_PLT32 }, |
| 1700 | { "BTEXT", BFD_RELOC_CKCORE_TOFFSET_LO16}, |
| 1701 | { "BDATA", BFD_RELOC_CKCORE_DOFFSET_LO16}, |
| 1702 | { "TLSGD32", BFD_RELOC_CKCORE_TLS_GD32 }, |
| 1703 | { "TLSLDM32", BFD_RELOC_CKCORE_TLS_LDM32 }, |
| 1704 | { "TLSLDO32", BFD_RELOC_CKCORE_TLS_LDO32 }, |
| 1705 | { "TPOFF", BFD_RELOC_CKCORE_TLS_LE32 } |
| 1706 | }; |
| 1707 | |
| 1708 | char *cp; |
| 1709 | unsigned int j; |
| 1710 | |
| 1711 | for (cp = input_line_pointer; *cp != '@'; cp++) |
| 1712 | if (is_end_of_line[(unsigned char) *cp]) |
| 1713 | return NULL; |
| 1714 | |
| 1715 | for (j = 0; j < sizeof (gotrel) / sizeof (gotrel[0]); j++) |
| 1716 | { |
| 1717 | int len = strlen (gotrel[j].str); |
| 1718 | |
| 1719 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
| 1720 | { |
| 1721 | if (gotrel[j].rel != 0) |
| 1722 | { |
| 1723 | *reloc = gotrel[j].rel; |
| 1724 | if (adjust) |
| 1725 | *adjust = len; |
| 1726 | |
| 1727 | /* input_line_pointer is the str pointer after relocation |
| 1728 | token like @GOTOFF. */ |
| 1729 | input_line_pointer += len + 1; |
| 1730 | return input_line_pointer; |
| 1731 | } |
| 1732 | |
| 1733 | csky_show_error (ERROR_RELOC_ILLEGAL, 0, |
| 1734 | (void *)gotrel[j].str, NULL); |
| 1735 | return NULL; |
| 1736 | } |
| 1737 | } |
| 1738 | |
| 1739 | /* Might be a symbol version string. Don't as_bad here. */ |
| 1740 | return NULL; |
| 1741 | } |
| 1742 | |
| 1743 | /* Parse an expression, returning it in E. */ |
| 1744 | |
| 1745 | static char * |
| 1746 | parse_exp (char *s, expressionS *e) |
| 1747 | { |
| 1748 | char *save; |
| 1749 | char *new; |
| 1750 | |
| 1751 | /* Skip whitespace. */ |
| 1752 | while (ISSPACE (*s)) |
| 1753 | ++s; |
| 1754 | |
| 1755 | save = input_line_pointer; |
| 1756 | input_line_pointer = s; |
| 1757 | |
| 1758 | insn_reloc = BFD_RELOC_NONE; |
| 1759 | expression (e); |
| 1760 | lex_got (&insn_reloc, NULL); |
| 1761 | |
| 1762 | if (e->X_op == O_absent) |
| 1763 | SET_ERROR_NUMBER (ERROR_MISSING_OPERAND, NULL); |
| 1764 | |
| 1765 | new = input_line_pointer; |
| 1766 | input_line_pointer = save; |
| 1767 | |
| 1768 | return new; |
| 1769 | } |
| 1770 | |
| 1771 | /* Parse a floating-point number from S into its target representation. |
| 1772 | If ISDOUBLE is true, return the result in *DBNUM; otherwise |
| 1773 | it's returned in E->X_add_number. Returns the result of advancing |
| 1774 | S past the constant. */ |
| 1775 | |
| 1776 | static char * |
| 1777 | parse_fexp (char *s, expressionS *e, unsigned char isdouble, uint64_t *dbnum) |
| 1778 | { |
| 1779 | int length; /* Number of chars in an object. */ |
| 1780 | const char *err = NULL; /* Error from scanning float literal. */ |
| 1781 | unsigned char temp[8]; |
| 1782 | |
| 1783 | /* input_line_pointer->1st char of a flonum (we hope!). */ |
| 1784 | input_line_pointer = s; |
| 1785 | |
| 1786 | if (input_line_pointer[0] == '0' |
| 1787 | && ISALPHA (input_line_pointer[1])) |
| 1788 | input_line_pointer += 2; |
| 1789 | |
| 1790 | if (isdouble) |
| 1791 | err = md_atof ('d', (char *) temp, &length); |
| 1792 | else |
| 1793 | err = md_atof ('f', (char *) temp, &length); |
| 1794 | know (length <= 8); |
| 1795 | know (err != NULL || length > 0); |
| 1796 | |
| 1797 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
| 1798 | as_bad (_("immediate operand required")); |
| 1799 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
| 1800 | input_line_pointer++; |
| 1801 | |
| 1802 | if (err) |
| 1803 | { |
| 1804 | as_bad (_("bad floating literal: %s"), err); |
| 1805 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
| 1806 | input_line_pointer++; |
| 1807 | know (is_end_of_line[(unsigned char) input_line_pointer[-1]]); |
| 1808 | return input_line_pointer; |
| 1809 | } |
| 1810 | |
| 1811 | e->X_add_symbol = 0x0; |
| 1812 | e->X_op_symbol = 0x0; |
| 1813 | e->X_op = O_constant; |
| 1814 | e->X_unsigned = 1; |
| 1815 | e->X_md = 0x0; |
| 1816 | |
| 1817 | if (!isdouble) |
| 1818 | { |
| 1819 | uint32_t fnum; |
| 1820 | if (target_big_endian) |
| 1821 | fnum = (((uint32_t) temp[0] << 24) |
| 1822 | | (temp[1] << 16) |
| 1823 | | (temp[2] << 8) |
| 1824 | | temp[3]); |
| 1825 | else |
| 1826 | fnum = (((uint32_t) temp[3] << 24) |
| 1827 | | (temp[2] << 16) |
| 1828 | | (temp[1] << 8) |
| 1829 | | temp[0]); |
| 1830 | e->X_add_number = fnum; |
| 1831 | } |
| 1832 | else |
| 1833 | { |
| 1834 | if (target_big_endian) |
| 1835 | { |
| 1836 | *dbnum = (((uint32_t) temp[0] << 24) |
| 1837 | | (temp[1] << 16) |
| 1838 | | (temp[2] << 8) |
| 1839 | | temp[3]); |
| 1840 | *dbnum <<= 32; |
| 1841 | *dbnum |= (((uint32_t) temp[4] << 24) |
| 1842 | | (temp[5] << 16) |
| 1843 | | (temp[6] << 8) |
| 1844 | | temp[7]); |
| 1845 | } |
| 1846 | else |
| 1847 | { |
| 1848 | *dbnum = (((uint32_t) temp[7] << 24) |
| 1849 | | (temp[6] << 16) |
| 1850 | | (temp[5] << 8) |
| 1851 | | temp[4]); |
| 1852 | *dbnum <<= 32; |
| 1853 | *dbnum |= (((uint32_t) temp[3] << 24) |
| 1854 | | (temp[2] << 16) |
| 1855 | | (temp[1] << 8) |
| 1856 | | temp[0]); |
| 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, (1u << 31) - 1, 1u << 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, (1u << 31) - 1, 1u << 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 | buf[22] = 0; /* initialise. */ |
| 4431 | buf[23] = 0; |
| 4432 | fragp->fr_fix += C32_LEN_PIC; |
| 4433 | |
| 4434 | } /* end if is_unaligned. */ |
| 4435 | } /* end case C (COND_JUMP_PIC, DISP32)/C (COND_JUMP_PIC, UNDEF_WORD_DISP). */ |
| 4436 | break; |
| 4437 | case C (UNCD_JUMP, DISP32): |
| 4438 | case C (UNCD_JUMP, UNDEF_WORD_DISP): |
| 4439 | { |
| 4440 | /* jmpi 0f |
| 4441 | .align 2 |
| 4442 | 0: .long disp. */ |
| 4443 | int first_inst = fragp->fr_fix + fragp->fr_address; |
| 4444 | int is_unaligned = (first_inst & 3); |
| 4445 | /* Build jmpi. */ |
| 4446 | buf[0] = BYTE_0 (CSKYV1_INST_JMPI); |
| 4447 | buf[1] = BYTE_1 (CSKYV1_INST_JMPI); |
| 4448 | if (!is_unaligned) |
| 4449 | { |
| 4450 | if (!target_big_endian) |
| 4451 | buf[0] = 1; |
| 4452 | else |
| 4453 | buf[1] = 1; |
| 4454 | /* Alignment. */ |
| 4455 | buf[2] = 0; |
| 4456 | buf[3] = 0; |
| 4457 | /* .long */ |
| 4458 | buf[4] = 0; |
| 4459 | buf[5] = 0; |
| 4460 | buf[6] = 0; |
| 4461 | buf[7] = 0; |
| 4462 | fix_new (fragp, fragp->fr_fix + 4, 4, |
| 4463 | fragp->fr_symbol, fragp->fr_offset, 0, BFD_RELOC_32); |
| 4464 | fragp->fr_fix += U32_LEN; |
| 4465 | } |
| 4466 | else /* if is_unaligned. */ |
| 4467 | { |
| 4468 | if (!target_big_endian) |
| 4469 | buf[0] = 0; |
| 4470 | else |
| 4471 | buf[1] = 0; |
| 4472 | /* .long */ |
| 4473 | buf[2] = 0; |
| 4474 | buf[3] = 0; |
| 4475 | buf[4] = 0; |
| 4476 | buf[5] = 0; |
| 4477 | fix_new (fragp, fragp->fr_fix + 2, 4, |
| 4478 | fragp->fr_symbol, fragp->fr_offset, 0, BFD_RELOC_32); |
| 4479 | fragp->fr_fix += U32_LEN; |
| 4480 | |
| 4481 | } |
| 4482 | } |
| 4483 | break; |
| 4484 | case C (UNCD_JUMP_PIC, DISP32): |
| 4485 | case C (UNCD_JUMP_PIC, UNDEF_WORD_DISP): |
| 4486 | { |
| 4487 | /* subi sp, 8 |
| 4488 | stw r15, (sp) |
| 4489 | bsr .L0 |
| 4490 | .L0: |
| 4491 | lrw r1, 0f |
| 4492 | add r1, r15 |
| 4493 | ldw r15, (sp) |
| 4494 | addi sp, 8 |
| 4495 | jmp r1 |
| 4496 | .align 2 |
| 4497 | 0: .long (tar_add - pc) |
| 4498 | 1: |
| 4499 | */ |
| 4500 | /* If the b!cond is 4 byte aligned, the literal which would |
| 4501 | go at x+4 will also be aligned. */ |
| 4502 | int first_inst = fragp->fr_fix + fragp->fr_address; |
| 4503 | int is_unaligned = (first_inst & 3); |
| 4504 | disp -= 6; |
| 4505 | |
| 4506 | buf[0] = BYTE_0 (CSKYV1_INST_SUBI | (7 << 4)); /* subi r0, 8. */ |
| 4507 | buf[1] = BYTE_1 (CSKYV1_INST_SUBI | (7 << 4)); |
| 4508 | buf[2] = BYTE_0 (CSKYV1_INST_STW | (15 << 8)); /* stw r15, r0. */ |
| 4509 | buf[3] = BYTE_1 (CSKYV1_INST_STW | (15 << 8)); |
| 4510 | buf[4] = BYTE_0 (CSKYV1_INST_BSR); /* bsr pc + 2. */ |
| 4511 | buf[5] = BYTE_1 (CSKYV1_INST_BSR); |
| 4512 | buf[6] = BYTE_0 (CSKYV1_INST_LRW | (1 << 8)); /* lrw r1, (tar_addr - pc). */ |
| 4513 | buf[7] = BYTE_1 (CSKYV1_INST_LRW | (1 << 8)); |
| 4514 | buf[8] = BYTE_0 (CSKYV1_INST_ADDU | (15 << 4) | 1); /* add r1, r15. */ |
| 4515 | buf[9] = BYTE_1 (CSKYV1_INST_ADDU | (15 << 4) | 1); |
| 4516 | buf[10] = BYTE_0 (CSKYV1_INST_LDW | (15 << 8)); /* ldw r15, r0. */ |
| 4517 | buf[11] = BYTE_1 (CSKYV1_INST_LDW | (15 << 8)); |
| 4518 | buf[12] = BYTE_0 (CSKYV1_INST_ADDI | (7 << 4)); /* addi r0, 8. */ |
| 4519 | buf[13] = BYTE_1 (CSKYV1_INST_ADDI | (7 << 4)); |
| 4520 | buf[14] = BYTE_0 (CSKYV1_INST_JMP | 1); /* jmp r1. */ |
| 4521 | buf[15] = BYTE_1 (CSKYV1_INST_JMP | 1); |
| 4522 | |
| 4523 | if (is_unaligned) |
| 4524 | { |
| 4525 | if (!target_big_endian) |
| 4526 | { |
| 4527 | buf[6] = 3; |
| 4528 | buf[18] = disp & 0xff; |
| 4529 | buf[19] = (disp >> 8) & 0xff; |
| 4530 | buf[20] = (disp >> 16) & 0xff; |
| 4531 | buf[21] = (disp >> 24) & 0xff; |
| 4532 | } |
| 4533 | else |
| 4534 | { |
| 4535 | buf[7] = 3; |
| 4536 | buf[18] = (disp >> 24) & 0xff; |
| 4537 | buf[19] = (disp >> 16) & 0xff; |
| 4538 | buf[20] = (disp >> 8) & 0xff; |
| 4539 | buf[21] = disp & 0xff; |
| 4540 | } |
| 4541 | buf[16] = 0; |
| 4542 | buf[17] = 0; |
| 4543 | fragp->fr_fix += U32_LEN_PIC; |
| 4544 | } |
| 4545 | else |
| 4546 | { |
| 4547 | if (!target_big_endian) |
| 4548 | { |
| 4549 | buf[6] = 2; |
| 4550 | buf[16] = disp & 0xff; |
| 4551 | buf[17] = (disp >> 8) & 0xff; |
| 4552 | buf[18] = (disp >> 16) & 0xff; |
| 4553 | buf[19] = (disp >> 24) & 0xff; |
| 4554 | } |
| 4555 | else |
| 4556 | { |
| 4557 | buf[7] = 2; |
| 4558 | buf[16] = (disp >> 24) & 0xff; |
| 4559 | buf[17] = (disp >> 16) & 0xff; |
| 4560 | buf[18] = (disp >> 8) & 0xff; |
| 4561 | buf[19] = disp & 0xff; |
| 4562 | } |
| 4563 | fragp->fr_fix += U32_LEN_PIC; |
| 4564 | } |
| 4565 | } |
| 4566 | break; |
| 4567 | case COND_DISP10: |
| 4568 | case SCOND_DISP10: |
| 4569 | case UNCD_DISP10: |
| 4570 | case JCOND_DISP10: |
| 4571 | case JUNCD_DISP10: |
| 4572 | { |
| 4573 | unsigned int inst = csky_read_insn (buf, 2); |
| 4574 | inst |= (disp >> 1) & ((1 << 10) - 1); |
| 4575 | csky_write_insn (buf, inst, 2); |
| 4576 | fragp->fr_fix += 2; |
| 4577 | break; |
| 4578 | } |
| 4579 | case SCOND_DISP16: |
| 4580 | { |
| 4581 | unsigned int inst = csky_read_insn (buf, 2); |
| 4582 | |
| 4583 | if (inst == CSKYV2_INST_BT16) |
| 4584 | inst = CSKYV2_INST_BF16; |
| 4585 | else |
| 4586 | inst = CSKYV2_INST_BT16; |
| 4587 | make_insn (2, inst, (2 + 4) >> 1, 10); |
| 4588 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) |
| 4589 | fix_new (fragp, fragp->fr_fix, 4, |
| 4590 | fragp->fr_symbol, fragp->fr_offset, 1, |
| 4591 | BFD_RELOC_CKCORE_PCREL_IMM16BY2); |
| 4592 | disp -= 2; |
| 4593 | inst = CSKYV2_INST_BR32 | ((disp >> 1) & ((1 << 16) - 1)); |
| 4594 | csky_write_insn (buf, inst, 4); |
| 4595 | fragp->fr_fix += 4; |
| 4596 | break; |
| 4597 | } |
| 4598 | case COND_DISP16: |
| 4599 | case JCOND_DISP16: |
| 4600 | { |
| 4601 | unsigned int inst = csky_read_insn (buf, 2); |
| 4602 | |
| 4603 | if (inst == CSKYV2_INST_BT16) |
| 4604 | inst = CSKYV2_INST_BT32; |
| 4605 | else |
| 4606 | inst = CSKYV2_INST_BF32; |
| 4607 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) |
| 4608 | fix_new (fragp, fragp->fr_fix, 4, |
| 4609 | fragp->fr_symbol, fragp->fr_offset, 1, |
| 4610 | BFD_RELOC_CKCORE_PCREL_IMM16BY2); |
| 4611 | inst |= (disp >> 1) & ((1 << 16) - 1); |
| 4612 | csky_write_insn (buf, inst, 4); |
| 4613 | fragp->fr_fix += 4; |
| 4614 | break; |
| 4615 | } |
| 4616 | case LRW_DISP7: |
| 4617 | { |
| 4618 | unsigned int inst = csky_read_insn (buf, 2); |
| 4619 | int imm; |
| 4620 | imm = (disp + 2) >> 2; |
| 4621 | inst |= (imm >> 5) << 8; |
| 4622 | make_insn (2, inst, (imm & 0x1f), 5); |
| 4623 | break; |
| 4624 | } |
| 4625 | case LRW2_DISP8: |
| 4626 | { |
| 4627 | unsigned int inst = csky_read_insn (buf, 2); |
| 4628 | int imm = (disp + 2) >> 2; |
| 4629 | if (imm >= 0x80) |
| 4630 | { |
| 4631 | inst &= 0xe0; |
| 4632 | inst |= (~((imm >> 5) << 8)) & 0x300; |
| 4633 | make_insn (2, inst, (~imm & 0x1f), 5); |
| 4634 | } |
| 4635 | else |
| 4636 | { |
| 4637 | inst |= (imm >> 5) << 8; |
| 4638 | make_insn (2, inst, (imm & 0x1f), 5); |
| 4639 | } |
| 4640 | break; |
| 4641 | } |
| 4642 | case LRW_DISP16: |
| 4643 | { |
| 4644 | unsigned int inst = csky_read_insn (buf, 2); |
| 4645 | inst = CSKYV2_INST_LRW32 | (((inst & 0xe0) >> 5) << 16); |
| 4646 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) |
| 4647 | fix_new (fragp, fragp->fr_fix, 4, |
| 4648 | fragp->fr_symbol, fragp->fr_offset, 1, |
| 4649 | BFD_RELOC_CKCORE_PCREL_IMM16BY4); |
| 4650 | make_insn (4, inst, ((disp + 2) >> 2), 16); |
| 4651 | break; |
| 4652 | } |
| 4653 | case JCOMPZ_DISP16: |
| 4654 | { |
| 4655 | unsigned int inst = csky_read_insn (buf, 4); |
| 4656 | make_insn (4, inst, disp >> 1, 16); |
| 4657 | } |
| 4658 | break; |
| 4659 | case JCOMPZ_DISP32: |
| 4660 | { |
| 4661 | unsigned int inst = csky_read_insn (buf, 4); |
| 4662 | int literal_offset; |
| 4663 | make_insn (4, opposite_of_stored_compz (inst), |
| 4664 | (4 + 4 + PAD_LITERAL_LENGTH) >> 1, 16); |
| 4665 | literal_offset = ((fragp->fr_address + fragp->fr_fix) % 4 == 0 |
| 4666 | ? 0 : 2); |
| 4667 | make_insn (4, CSKYV2_INST_JMPI32, (4 + literal_offset + 2) >> 2, 10); |
| 4668 | make_literal (fragp, literal_offset); |
| 4669 | } |
| 4670 | break; |
| 4671 | case JUNCD_DISP16: |
| 4672 | case UNCD_DISP16: |
| 4673 | { |
| 4674 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, asec)) |
| 4675 | fix_new (fragp, fragp->fr_fix, 4, |
| 4676 | fragp->fr_symbol, fragp->fr_offset, 1, |
| 4677 | BFD_RELOC_CKCORE_PCREL_IMM16BY2); |
| 4678 | make_insn (4, CSKYV2_INST_BR32, disp >> 1, 16); |
| 4679 | } |
| 4680 | break; |
| 4681 | case JCOND_DISP32: |
| 4682 | { |
| 4683 | /* 'jbt'/'jbf'-> <bf16/bt16>; jmpi32; [pad16]+literal32 */ |
| 4684 | unsigned int inst = csky_read_insn (buf, 2); |
| 4685 | int literal_offset; |
| 4686 | |
| 4687 | if (inst == CSKYV2_INST_BT16) |
| 4688 | inst = CSKYV2_INST_BF16; |
| 4689 | else |
| 4690 | inst = CSKYV2_INST_BT16; |
| 4691 | make_insn (2, inst, (2 + 4 + PAD_LITERAL_LENGTH) >> 1, 10); |
| 4692 | literal_offset = ((fragp->fr_address + fragp->fr_fix) % 4 == 0 |
| 4693 | ? 0 : 2); |
| 4694 | make_insn (4, CSKYV2_INST_JMPI32, (4 + literal_offset + 2) >> 2, 10); |
| 4695 | make_literal (fragp, literal_offset); |
| 4696 | break; |
| 4697 | } |
| 4698 | case JUNCD_DISP32: |
| 4699 | { |
| 4700 | int literal_offset; |
| 4701 | literal_offset = ((fragp->fr_address + fragp->fr_fix) % 4 == 0 |
| 4702 | ? 0 : 2); |
| 4703 | make_insn (4, CSKYV2_INST_JMPI32, (4 + literal_offset + 2) >> 2, 10); |
| 4704 | make_literal (fragp, literal_offset); |
| 4705 | } |
| 4706 | break; |
| 4707 | case RELAX_OVERFLOW: |
| 4708 | csky_branch_report_error (fragp->fr_file, fragp->fr_line, |
| 4709 | fragp->fr_symbol, disp); |
| 4710 | break; |
| 4711 | default: |
| 4712 | abort (); |
| 4713 | break; |
| 4714 | } |
| 4715 | } |
| 4716 | |
| 4717 | /* Round up a section size to the appropriate boundary. */ |
| 4718 | |
| 4719 | valueT |
| 4720 | md_section_align (segT segment ATTRIBUTE_UNUSED, |
| 4721 | valueT size) |
| 4722 | { |
| 4723 | return size; |
| 4724 | } |
| 4725 | |
| 4726 | /* MD interface: Symbol and relocation handling. */ |
| 4727 | |
| 4728 | void md_csky_end (void) |
| 4729 | { |
| 4730 | dump_literals (0); |
| 4731 | } |
| 4732 | |
| 4733 | /* Return the address within the segment that a PC-relative fixup is |
| 4734 | relative to. */ |
| 4735 | |
| 4736 | long |
| 4737 | md_pcrel_from_section (fixS * fixP, segT seg) |
| 4738 | { |
| 4739 | /* If the symbol is undefined or defined in another section |
| 4740 | we leave the add number alone for the linker to fix it later. */ |
| 4741 | if (fixP->fx_addsy != (symbolS *) NULL |
| 4742 | && (! S_IS_DEFINED (fixP->fx_addsy) |
| 4743 | || S_GET_SEGMENT (fixP->fx_addsy) != seg)) |
| 4744 | return fixP->fx_size; |
| 4745 | |
| 4746 | /* The case where we are going to resolve things. */ |
| 4747 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; |
| 4748 | } |
| 4749 | |
| 4750 | /* csky_cons_fix_new is called via the expression parsing code when a |
| 4751 | reloc is needed. We use this hook to get the correct .got reloc. */ |
| 4752 | |
| 4753 | void |
| 4754 | csky_cons_fix_new (fragS *frag, |
| 4755 | unsigned int off, |
| 4756 | unsigned int len, |
| 4757 | expressionS *exp, |
| 4758 | bfd_reloc_code_real_type reloc) |
| 4759 | { |
| 4760 | fixS *fixP; |
| 4761 | |
| 4762 | if (BFD_RELOC_CKCORE_GOTOFF == insn_reloc |
| 4763 | || BFD_RELOC_CKCORE_GOTPC == insn_reloc |
| 4764 | || BFD_RELOC_CKCORE_GOT32 == insn_reloc |
| 4765 | || BFD_RELOC_CKCORE_PLT32 == insn_reloc |
| 4766 | || BFD_RELOC_CKCORE_TLS_LE32 == insn_reloc |
| 4767 | || BFD_RELOC_CKCORE_TLS_GD32 == insn_reloc |
| 4768 | || BFD_RELOC_CKCORE_TLS_LDM32 == insn_reloc |
| 4769 | || BFD_RELOC_CKCORE_TLS_LDO32 == insn_reloc |
| 4770 | || BFD_RELOC_CKCORE_TLS_IE32 == insn_reloc) |
| 4771 | reloc = insn_reloc; |
| 4772 | else |
| 4773 | switch (len) |
| 4774 | { |
| 4775 | case 1: |
| 4776 | reloc = BFD_RELOC_8; |
| 4777 | break; |
| 4778 | case 2: |
| 4779 | reloc = BFD_RELOC_16; |
| 4780 | break; |
| 4781 | case 4: |
| 4782 | reloc = BFD_RELOC_32; |
| 4783 | break; |
| 4784 | case 8: |
| 4785 | reloc = BFD_RELOC_64; |
| 4786 | break; |
| 4787 | default: |
| 4788 | as_bad (_("unsupported BFD relocation size %d"), len); |
| 4789 | reloc = BFD_RELOC_32; |
| 4790 | break; |
| 4791 | } |
| 4792 | fixP = fix_new_exp (frag, off, (int) len, exp, 0, reloc); |
| 4793 | if (BFD_RELOC_CKCORE_TLS_IE32 == insn_reloc |
| 4794 | || BFD_RELOC_CKCORE_TLS_GD32 == insn_reloc |
| 4795 | || BFD_RELOC_CKCORE_TLS_LDM32 == insn_reloc) |
| 4796 | { |
| 4797 | fixP->tc_fix_data.frag = literal_insn_offset->tls_addend.frag; |
| 4798 | fixP->tc_fix_data.offset = literal_insn_offset->tls_addend.offset; |
| 4799 | } |
| 4800 | } |
| 4801 | |
| 4802 | /* See whether we need to force a relocation into the output file. |
| 4803 | This is used to force out switch and PC relative relocations when |
| 4804 | relaxing. */ |
| 4805 | |
| 4806 | int |
| 4807 | csky_force_relocation (fixS * fix) |
| 4808 | { |
| 4809 | if (fix->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
| 4810 | || fix->fx_r_type == BFD_RELOC_VTABLE_ENTRY |
| 4811 | || fix->fx_r_type == BFD_RELOC_RVA |
| 4812 | || fix->fx_r_type == BFD_RELOC_CKCORE_ADDR_HI16 |
| 4813 | || fix->fx_r_type == BFD_RELOC_CKCORE_ADDR_LO16 |
| 4814 | || fix->fx_r_type == BFD_RELOC_CKCORE_TOFFSET_LO16 |
| 4815 | || fix->fx_r_type == BFD_RELOC_CKCORE_DOFFSET_LO16) |
| 4816 | return 1; |
| 4817 | |
| 4818 | if (fix->fx_addsy == NULL) |
| 4819 | return 0; |
| 4820 | |
| 4821 | if (do_use_branchstub |
| 4822 | && fix->fx_r_type == BFD_RELOC_CKCORE_PCREL_IMM26BY2 |
| 4823 | && (symbol_get_bfdsym (fix->fx_addsy)->flags & BSF_FUNCTION)) |
| 4824 | return 1; |
| 4825 | return S_FORCE_RELOC (fix->fx_addsy, fix->fx_subsy == NULL); |
| 4826 | } |
| 4827 | |
| 4828 | /* Return true if the fix can be handled by GAS, false if it must |
| 4829 | be passed through to the linker. */ |
| 4830 | |
| 4831 | bfd_boolean |
| 4832 | csky_fix_adjustable (fixS * fixP) |
| 4833 | { |
| 4834 | if (fixP->fx_addsy == NULL) |
| 4835 | return 1; |
| 4836 | |
| 4837 | /* We need the symbol name for the VTABLE entries. */ |
| 4838 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
| 4839 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY |
| 4840 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT32 |
| 4841 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT32 |
| 4842 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT12 |
| 4843 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT12 |
| 4844 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT_HI16 |
| 4845 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT_LO16 |
| 4846 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT_HI16 |
| 4847 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT_LO16 |
| 4848 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF |
| 4849 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF_HI16 |
| 4850 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF_LO16 |
| 4851 | || fixP->fx_r_type == BFD_RELOC_CKCORE_ADDR_HI16 |
| 4852 | || fixP->fx_r_type == BFD_RELOC_CKCORE_ADDR_LO16 |
| 4853 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOT_IMM18BY4 |
| 4854 | || fixP->fx_r_type == BFD_RELOC_CKCORE_PLT_IMM18BY4 |
| 4855 | || fixP->fx_r_type == BFD_RELOC_CKCORE_GOTOFF_IMM18 |
| 4856 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_LE32 |
| 4857 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_IE32 |
| 4858 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_GD32 |
| 4859 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_LDM32 |
| 4860 | || fixP->fx_r_type == BFD_RELOC_CKCORE_TLS_LDO32) |
| 4861 | return 0; |
| 4862 | |
| 4863 | if (do_use_branchstub |
| 4864 | && fixP->fx_r_type == BFD_RELOC_CKCORE_PCREL_IMM26BY2 |
| 4865 | && (symbol_get_bfdsym (fixP->fx_addsy)->flags & BSF_FUNCTION)) |
| 4866 | return 0; |
| 4867 | |
| 4868 | return 1; |
| 4869 | } |
| 4870 | |
| 4871 | void |
| 4872 | md_apply_fix (fixS *fixP, |
| 4873 | valueT *valP, |
| 4874 | segT seg) |
| 4875 | { |
| 4876 | reloc_howto_type *howto; |
| 4877 | /* Note: use offsetT because it is signed, valueT is unsigned. */ |
| 4878 | offsetT val = *valP; |
| 4879 | char *buf = fixP->fx_frag->fr_literal + fixP->fx_where; |
| 4880 | |
| 4881 | /* if fx_done = 0, fixup will also be processed in |
| 4882 | * tc_gen_reloc() after md_apply_fix(). */ |
| 4883 | fixP->fx_done = 0; |
| 4884 | |
| 4885 | /* If the fix is relative to a symbol which is not defined, or not |
| 4886 | in the same segment as the fix, we cannot resolve it here. */ |
| 4887 | if (IS_CSKY_V1 (mach_flag) && fixP->fx_addsy != NULL |
| 4888 | && (! S_IS_DEFINED (fixP->fx_addsy) |
| 4889 | || S_GET_SEGMENT (fixP->fx_addsy) != seg)) |
| 4890 | { |
| 4891 | switch (fixP->fx_r_type) |
| 4892 | { |
| 4893 | /* Data fx_addnumber is greater than 16 bits, |
| 4894 | so fx_addnumber is assigned zero. */ |
| 4895 | case BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2: |
| 4896 | *valP = 0; |
| 4897 | break; |
| 4898 | case BFD_RELOC_CKCORE_TLS_IE32: |
| 4899 | case BFD_RELOC_CKCORE_TLS_LDM32: |
| 4900 | case BFD_RELOC_CKCORE_TLS_GD32: |
| 4901 | { |
| 4902 | struct tls_addend *ta = &(fixP->tc_fix_data); |
| 4903 | fixP->fx_offset = (fixP->fx_frag->fr_address + fixP->fx_where |
| 4904 | - (ta->frag->fr_address + ta->offset)); |
| 4905 | } |
| 4906 | /* Fall through. */ |
| 4907 | case BFD_RELOC_CKCORE_TLS_LE32: |
| 4908 | case BFD_RELOC_CKCORE_TLS_LDO32: |
| 4909 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
| 4910 | break; |
| 4911 | default: |
| 4912 | break; |
| 4913 | } |
| 4914 | #ifdef OBJ_ELF |
| 4915 | /* For ELF we can just return and let the reloc that will be generated |
| 4916 | take care of everything. For COFF we still have to insert 'val' |
| 4917 | into the insn since the addend field will be ignored. */ |
| 4918 | return; |
| 4919 | #endif |
| 4920 | } |
| 4921 | |
| 4922 | /* We can handle these relocs. */ |
| 4923 | switch (fixP->fx_r_type) |
| 4924 | { |
| 4925 | case BFD_RELOC_32_PCREL: |
| 4926 | case BFD_RELOC_CKCORE_PCREL32: |
| 4927 | fixP->fx_r_type = BFD_RELOC_CKCORE_PCREL32; |
| 4928 | break; |
| 4929 | case BFD_RELOC_VTABLE_INHERIT: |
| 4930 | fixP->fx_r_type = BFD_RELOC_CKCORE_GNU_VTINHERIT; |
| 4931 | if (fixP->fx_addsy && !S_IS_DEFINED (fixP->fx_addsy) |
| 4932 | && !S_IS_WEAK (fixP->fx_addsy)) |
| 4933 | S_SET_WEAK (fixP->fx_addsy); |
| 4934 | break; |
| 4935 | case BFD_RELOC_VTABLE_ENTRY: |
| 4936 | fixP->fx_r_type = BFD_RELOC_CKCORE_GNU_VTENTRY; |
| 4937 | break; |
| 4938 | case BFD_RELOC_CKCORE_GOT12: |
| 4939 | case BFD_RELOC_CKCORE_PLT12: |
| 4940 | case BFD_RELOC_CKCORE_ADDR_HI16: |
| 4941 | case BFD_RELOC_CKCORE_ADDR_LO16: |
| 4942 | case BFD_RELOC_CKCORE_TOFFSET_LO16: |
| 4943 | case BFD_RELOC_CKCORE_DOFFSET_LO16: |
| 4944 | case BFD_RELOC_CKCORE_GOT_HI16: |
| 4945 | case BFD_RELOC_CKCORE_GOT_LO16: |
| 4946 | case BFD_RELOC_CKCORE_PLT_HI16: |
| 4947 | case BFD_RELOC_CKCORE_PLT_LO16: |
| 4948 | case BFD_RELOC_CKCORE_GOTPC_HI16: |
| 4949 | case BFD_RELOC_CKCORE_GOTPC_LO16: |
| 4950 | case BFD_RELOC_CKCORE_GOTOFF_HI16: |
| 4951 | case BFD_RELOC_CKCORE_GOTOFF_LO16: |
| 4952 | case BFD_RELOC_CKCORE_DOFFSET_IMM18: |
| 4953 | case BFD_RELOC_CKCORE_DOFFSET_IMM18BY2: |
| 4954 | case BFD_RELOC_CKCORE_DOFFSET_IMM18BY4: |
| 4955 | case BFD_RELOC_CKCORE_GOTOFF_IMM18: |
| 4956 | case BFD_RELOC_CKCORE_GOT_IMM18BY4: |
| 4957 | case BFD_RELOC_CKCORE_PLT_IMM18BY4: |
| 4958 | break; |
| 4959 | case BFD_RELOC_CKCORE_TLS_IE32: |
| 4960 | case BFD_RELOC_CKCORE_TLS_LDM32: |
| 4961 | case BFD_RELOC_CKCORE_TLS_GD32: |
| 4962 | { |
| 4963 | struct tls_addend *ta = &(fixP->tc_fix_data); |
| 4964 | fixP->fx_offset = (fixP->fx_frag->fr_address + fixP->fx_where |
| 4965 | - (ta->frag->fr_address + ta->offset)); |
| 4966 | } |
| 4967 | /* Fall through. */ |
| 4968 | case BFD_RELOC_CKCORE_TLS_LE32: |
| 4969 | case BFD_RELOC_CKCORE_TLS_LDO32: |
| 4970 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
| 4971 | break; |
| 4972 | case BFD_RELOC_32: |
| 4973 | fixP->fx_r_type = BFD_RELOC_CKCORE_ADDR32; |
| 4974 | /* Fall through. */ |
| 4975 | case BFD_RELOC_16: |
| 4976 | case BFD_RELOC_8: |
| 4977 | if (fixP->fx_addsy == NULL) |
| 4978 | { |
| 4979 | if (fixP->fx_size == 4) |
| 4980 | ; |
| 4981 | else if (fixP->fx_size == 2 && val >= -32768 && val <= 32767) |
| 4982 | ; |
| 4983 | else if (fixP->fx_size == 1 && val >= -256 && val <= 255) |
| 4984 | ; |
| 4985 | else |
| 4986 | abort (); |
| 4987 | md_number_to_chars (buf, val, fixP->fx_size); |
| 4988 | fixP->fx_done = 1; |
| 4989 | } |
| 4990 | break; |
| 4991 | case BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2: |
| 4992 | if (fixP->fx_addsy == 0 && val > -2 KB && val < 2 KB) |
| 4993 | { |
| 4994 | long nval = (val >> 1) & 0x7ff; |
| 4995 | nval |= CSKYV1_INST_BSR; |
| 4996 | csky_write_insn (buf, nval, 2); |
| 4997 | fixP->fx_done = 1; |
| 4998 | } |
| 4999 | else |
| 5000 | *valP = 0; |
| 5001 | break; |
| 5002 | case BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2: |
| 5003 | if (fixP->fx_addsy == 0) |
| 5004 | { |
| 5005 | if (val >= -(1 << 26) && val < (1 << 26)) |
| 5006 | { |
| 5007 | unsigned int nval = ((val + fixP->fx_size) >> 1) & 0x3ffffff; |
| 5008 | nval |= CSKYV2_INST_BSR32; |
| 5009 | |
| 5010 | csky_write_insn (buf, nval, 4); |
| 5011 | } |
| 5012 | /* If bsr32 cannot reach, |
| 5013 | generate 'lrw r25,label;jsr r25' instead of 'jsri label'. */ |
| 5014 | else if (IS_CSKY_ARCH_810 (mach_flag)) |
| 5015 | { |
| 5016 | howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type); |
| 5017 | valueT opcode = csky_read_insn (buf, 4); |
| 5018 | opcode = (opcode & howto->dst_mask) | CSKYV2_INST_JSRI_TO_LRW; |
| 5019 | csky_write_insn (buf, opcode, 4); |
| 5020 | opcode = CSKYV2_INST_JSR_R26; |
| 5021 | csky_write_insn (buf + 4, opcode, 4); |
| 5022 | } |
| 5023 | fixP->fx_done = 1; |
| 5024 | } |
| 5025 | break; |
| 5026 | |
| 5027 | default: |
| 5028 | { |
| 5029 | valueT opcode; |
| 5030 | offsetT min, max; |
| 5031 | unsigned int issigned = 0; |
| 5032 | |
| 5033 | if (fixP->fx_addsy) |
| 5034 | break; |
| 5035 | |
| 5036 | howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type); |
| 5037 | if (howto == NULL) |
| 5038 | { |
| 5039 | if (fixP->fx_size == 4 |
| 5040 | || (fixP->fx_size == 2 && val >= -32768 && val <= 32767) |
| 5041 | || (fixP->fx_size == 1 && val >= -256 && val <= 255)) |
| 5042 | { |
| 5043 | md_number_to_chars (buf, val, fixP->fx_size); |
| 5044 | fixP->fx_done = 1; |
| 5045 | break; |
| 5046 | } |
| 5047 | else |
| 5048 | abort (); |
| 5049 | } |
| 5050 | |
| 5051 | if (IS_CSKY_V2 (mach_flag)) |
| 5052 | val += fixP->fx_size; |
| 5053 | |
| 5054 | if (howto->rightshift == 2) |
| 5055 | val += 2; |
| 5056 | |
| 5057 | val >>= howto->rightshift; |
| 5058 | |
| 5059 | switch (fixP->fx_r_type) |
| 5060 | { |
| 5061 | /* Offset is unsigned. */ |
| 5062 | case BFD_RELOC_CKCORE_PCREL_IMM8BY4: |
| 5063 | case BFD_RELOC_CKCORE_PCREL_IMM10BY4: |
| 5064 | case BFD_RELOC_CKCORE_PCREL_IMM16BY4: |
| 5065 | max = (offsetT) howto->dst_mask; |
| 5066 | min = 0; |
| 5067 | break; |
| 5068 | /* lrw16. */ |
| 5069 | case BFD_RELOC_CKCORE_PCREL_IMM7BY4: |
| 5070 | if (do_extend_lrw) |
| 5071 | max = (offsetT)((1 << (howto->bitsize + 1)) - 2); |
| 5072 | else |
| 5073 | max = (offsetT)((1 << howto->bitsize) - 1); |
| 5074 | min = 0; |
| 5075 | break; |
| 5076 | /* flrws, flrwd: the offset bits are divided in two parts. */ |
| 5077 | case BFD_RELOC_CKCORE_PCREL_FLRW_IMM8BY4: |
| 5078 | max = (offsetT)((1 << howto->bitsize) - 1); |
| 5079 | min = 0; |
| 5080 | break; |
| 5081 | /* Offset is signed. */ |
| 5082 | default: |
| 5083 | max = (offsetT)(howto->dst_mask >> 1); |
| 5084 | min = - max - 1; |
| 5085 | issigned = 1; |
| 5086 | } |
| 5087 | if (val < min || val > max) |
| 5088 | { |
| 5089 | csky_branch_report_error (fixP->fx_file, fixP->fx_line, |
| 5090 | fixP->fx_addsy, val); |
| 5091 | return; |
| 5092 | } |
| 5093 | opcode = csky_read_insn (buf, fixP->fx_size); |
| 5094 | /* Clear redundant bits brought from the last |
| 5095 | operation if there is any. */ |
| 5096 | if (do_extend_lrw && (opcode & 0xfc00) == CSKYV2_INST_LRW16) |
| 5097 | val &= 0xff; |
| 5098 | else |
| 5099 | val &= issigned ? (offsetT)(howto->dst_mask) : max; |
| 5100 | |
| 5101 | if (fixP->fx_r_type == BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4) |
| 5102 | val = (val & 0xf) << 12; |
| 5103 | |
| 5104 | if (fixP->fx_size == 2 && (opcode & 0xfc00) == CSKYV2_INST_LRW16) |
| 5105 | { |
| 5106 | /* 8 bit offset lrw16. */ |
| 5107 | if (val >= 0x80) |
| 5108 | csky_write_insn (buf, |
| 5109 | ((~val & 0x1f) |
| 5110 | | ((~val & 0x60) << 3) | (opcode & 0xe0)), |
| 5111 | fixP->fx_size); |
| 5112 | /* 7 bit offset lrw16. */ |
| 5113 | else |
| 5114 | csky_write_insn (buf, |
| 5115 | (val & 0x1f) | ((val & 0x60) << 3) | opcode, |
| 5116 | fixP->fx_size); |
| 5117 | } |
| 5118 | else if (fixP->fx_size == 4 |
| 5119 | && (opcode & 0xfe1ffe00) == CSKYV2_INST_FLRW) |
| 5120 | csky_write_insn (buf, |
| 5121 | ((val & 0xf) << 4) | ((val & 0xf0) << 17) | opcode, |
| 5122 | fixP->fx_size); |
| 5123 | else |
| 5124 | csky_write_insn (buf, val | opcode, fixP->fx_size); |
| 5125 | fixP->fx_done = 1; |
| 5126 | break; |
| 5127 | } |
| 5128 | } |
| 5129 | fixP->fx_addnumber = val; |
| 5130 | } |
| 5131 | |
| 5132 | /* Translate internal representation of relocation info to BFD target |
| 5133 | format. */ |
| 5134 | |
| 5135 | arelent * |
| 5136 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixP) |
| 5137 | { |
| 5138 | arelent *rel; |
| 5139 | |
| 5140 | if (fixP->fx_pcrel |
| 5141 | && fixP->fx_r_type == BFD_RELOC_CKCORE_ADDR32) |
| 5142 | fixP->fx_r_type = BFD_RELOC_CKCORE_PCREL32; |
| 5143 | |
| 5144 | rel = xmalloc (sizeof (arelent)); |
| 5145 | rel->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); |
| 5146 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy); |
| 5147 | rel->howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type); |
| 5148 | rel->addend = fixP->fx_offset; |
| 5149 | if (rel->howto == NULL) |
| 5150 | { |
| 5151 | as_bad_where (fixP->fx_file, fixP->fx_line, |
| 5152 | _("cannot represent `%s' relocation in object file"), |
| 5153 | bfd_get_reloc_code_name (fixP->fx_r_type)); |
| 5154 | |
| 5155 | /* Set howto to a garbage value so that we can keep going. */ |
| 5156 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); |
| 5157 | } |
| 5158 | gas_assert (rel->howto != NULL); |
| 5159 | rel->address = fixP->fx_frag->fr_address + fixP->fx_where; |
| 5160 | return rel; |
| 5161 | } |
| 5162 | |
| 5163 | /* Relax a fragment by scanning TC_GENERIC_RELAX_TABLE. */ |
| 5164 | |
| 5165 | long |
| 5166 | csky_relax_frag (segT segment, fragS *fragP, long stretch) |
| 5167 | { |
| 5168 | const relax_typeS *this_type; |
| 5169 | const relax_typeS *start_type; |
| 5170 | relax_substateT next_state; |
| 5171 | relax_substateT this_state; |
| 5172 | offsetT growth; |
| 5173 | offsetT aim; |
| 5174 | addressT target; |
| 5175 | addressT address; |
| 5176 | symbolS *symbolP; |
| 5177 | const relax_typeS *table; |
| 5178 | |
| 5179 | target = fragP->fr_offset; |
| 5180 | address = fragP->fr_address; |
| 5181 | table = TC_GENERIC_RELAX_TABLE; |
| 5182 | this_state = fragP->fr_subtype; |
| 5183 | start_type = this_type = table + this_state; |
| 5184 | symbolP = fragP->fr_symbol; |
| 5185 | |
| 5186 | if (symbolP) |
| 5187 | { |
| 5188 | fragS *sym_frag; |
| 5189 | |
| 5190 | sym_frag = symbol_get_frag (symbolP); |
| 5191 | |
| 5192 | #ifndef DIFF_EXPR_OK |
| 5193 | know (sym_frag != NULL); |
| 5194 | #endif |
| 5195 | know (S_GET_SEGMENT (symbolP) != absolute_section |
| 5196 | || sym_frag == &zero_address_frag); |
| 5197 | target += S_GET_VALUE (symbolP); |
| 5198 | |
| 5199 | /* If SYM_FRAG has yet to be reached on this pass, assume it |
| 5200 | will move by STRETCH just as we did, unless there is an |
| 5201 | alignment frag between here and SYM_FRAG. An alignment may |
| 5202 | well absorb any STRETCH, and we don't want to choose a larger |
| 5203 | branch insn by overestimating the needed reach of this |
| 5204 | branch. It isn't critical to calculate TARGET exactly; We |
| 5205 | know we'll be doing another pass if STRETCH is non-zero. */ |
| 5206 | |
| 5207 | if (stretch != 0 |
| 5208 | && sym_frag->relax_marker != fragP->relax_marker |
| 5209 | && S_GET_SEGMENT (symbolP) == segment) |
| 5210 | { |
| 5211 | fragS *f; |
| 5212 | |
| 5213 | /* Adjust stretch for any alignment frag. Note that if have |
| 5214 | been expanding the earlier code, the symbol may be |
| 5215 | defined in what appears to be an earlier frag. FIXME: |
| 5216 | This doesn't handle the fr_subtype field, which specifies |
| 5217 | a maximum number of bytes to skip when doing an |
| 5218 | alignment. */ |
| 5219 | for (f = fragP; f != NULL && f != sym_frag; f = f->fr_next) |
| 5220 | { |
| 5221 | if (f->fr_type == rs_align || f->fr_type == rs_align_code) |
| 5222 | { |
| 5223 | if (stretch < 0) |
| 5224 | stretch = -((-stretch) |
| 5225 | & ~((1 << (int) f->fr_offset) - 1)); |
| 5226 | else |
| 5227 | stretch &= ~((1 << (int) f->fr_offset) - 1); |
| 5228 | } |
| 5229 | if (stretch == 0) |
| 5230 | break; |
| 5231 | } |
| 5232 | if (f != 0) |
| 5233 | target += stretch; |
| 5234 | } |
| 5235 | } |
| 5236 | |
| 5237 | aim = target - address - fragP->fr_fix; |
| 5238 | |
| 5239 | /* If the fragP->fr_symbol is extern symbol, aim should be 0. */ |
| 5240 | if (fragP->fr_symbol && S_GET_SEGMENT (symbolP) != segment) |
| 5241 | aim = 0; |
| 5242 | |
| 5243 | if (aim < 0) |
| 5244 | { |
| 5245 | /* Look backwards. */ |
| 5246 | for (next_state = this_type->rlx_more; next_state;) |
| 5247 | if (aim >= this_type->rlx_backward) |
| 5248 | next_state = 0; |
| 5249 | else |
| 5250 | { |
| 5251 | /* Grow to next state. */ |
| 5252 | this_state = next_state; |
| 5253 | this_type = table + this_state; |
| 5254 | next_state = this_type->rlx_more; |
| 5255 | } |
| 5256 | } |
| 5257 | else |
| 5258 | { |
| 5259 | /* Look forwards. */ |
| 5260 | for (next_state = this_type->rlx_more; next_state;) |
| 5261 | if (aim <= this_type->rlx_forward) |
| 5262 | next_state = 0; |
| 5263 | else |
| 5264 | { |
| 5265 | /* Grow to next state. */ |
| 5266 | this_state = next_state; |
| 5267 | this_type = table + this_state; |
| 5268 | next_state = this_type->rlx_more; |
| 5269 | } |
| 5270 | } |
| 5271 | |
| 5272 | growth = this_type->rlx_length - start_type->rlx_length; |
| 5273 | if (growth != 0) |
| 5274 | fragP->fr_subtype = this_state; |
| 5275 | return growth; |
| 5276 | } |
| 5277 | |
| 5278 | int |
| 5279 | md_estimate_size_before_relax (fragS * fragp, |
| 5280 | segT segtype) |
| 5281 | { |
| 5282 | switch (fragp->fr_subtype) |
| 5283 | { |
| 5284 | case COND_DISP10: |
| 5285 | case COND_DISP16: |
| 5286 | case SCOND_DISP10: |
| 5287 | case SCOND_DISP16: |
| 5288 | case UNCD_DISP10: |
| 5289 | case UNCD_DISP16: |
| 5290 | case JCOND_DISP10: |
| 5291 | case JCOND_DISP16: |
| 5292 | case JCOND_DISP32: |
| 5293 | case JUNCD_DISP10: |
| 5294 | case JUNCD_DISP16: |
| 5295 | case JUNCD_DISP32: |
| 5296 | case JCOMPZ_DISP16: |
| 5297 | case JCOMPZ_DISP32: |
| 5298 | case BSR_DISP26: |
| 5299 | case LRW_DISP7: |
| 5300 | case LRW2_DISP8: |
| 5301 | case LRW_DISP16: |
| 5302 | gas_assert (fragp->fr_symbol); |
| 5303 | if (IS_EXTERNAL_SYM (fragp->fr_symbol, segtype)) |
| 5304 | while (csky_relax_table[fragp->fr_subtype].rlx_more > RELAX_OVERFLOW) |
| 5305 | fragp->fr_subtype = csky_relax_table[fragp->fr_subtype].rlx_more; |
| 5306 | return csky_relax_table[fragp->fr_subtype].rlx_length; |
| 5307 | |
| 5308 | /* C-SKY V1 relaxes. */ |
| 5309 | case C (UNCD_JUMP, UNDEF_DISP): |
| 5310 | case C (UNCD_JUMP_PIC, UNDEF_DISP): |
| 5311 | if (!fragp->fr_symbol) |
| 5312 | fragp->fr_subtype = C (UNCD_JUMP_S, DISP12); |
| 5313 | else if (S_GET_SEGMENT (fragp->fr_symbol) == segtype) |
| 5314 | fragp->fr_subtype = C (UNCD_JUMP_S, DISP12); |
| 5315 | else |
| 5316 | fragp->fr_subtype = C (UNCD_JUMP_S, UNDEF_WORD_DISP); |
| 5317 | break; |
| 5318 | |
| 5319 | case C (COND_JUMP, UNDEF_DISP): |
| 5320 | case C (COND_JUMP_PIC, UNDEF_DISP): |
| 5321 | if (fragp->fr_symbol |
| 5322 | && S_GET_SEGMENT (fragp->fr_symbol) == segtype) |
| 5323 | /* Got a symbol and it's defined in this segment, become byte |
| 5324 | sized. Maybe it will fix up. */ |
| 5325 | fragp->fr_subtype = C (COND_JUMP_S, DISP12); |
| 5326 | else if (fragp->fr_symbol) |
| 5327 | /* It's got a segment, but it's not ours, so it will always be |
| 5328 | long. */ |
| 5329 | fragp->fr_subtype = C (COND_JUMP_S, UNDEF_WORD_DISP); |
| 5330 | else |
| 5331 | /* We know the abs value. */ |
| 5332 | fragp->fr_subtype = C (COND_JUMP_S, DISP12); |
| 5333 | break; |
| 5334 | |
| 5335 | case C (UNCD_JUMP, DISP12): |
| 5336 | case C (UNCD_JUMP, DISP32): |
| 5337 | case C (UNCD_JUMP, UNDEF_WORD_DISP): |
| 5338 | case C (COND_JUMP, DISP12): |
| 5339 | case C (COND_JUMP, DISP32): |
| 5340 | case C (COND_JUMP, UNDEF_WORD_DISP): |
| 5341 | case C (UNCD_JUMP_PIC, DISP12): |
| 5342 | case C (UNCD_JUMP_PIC, DISP32): |
| 5343 | case C (UNCD_JUMP_PIC, UNDEF_WORD_DISP): |
| 5344 | case C (COND_JUMP_PIC, DISP12): |
| 5345 | case C (COND_JUMP_PIC, DISP32): |
| 5346 | case C (COND_JUMP_PIC, UNDEF_WORD_DISP): |
| 5347 | case RELAX_OVERFLOW: |
| 5348 | break; |
| 5349 | |
| 5350 | default: |
| 5351 | abort (); |
| 5352 | } |
| 5353 | return csky_relax_table[fragp->fr_subtype].rlx_length; |
| 5354 | } |
| 5355 | |
| 5356 | /* Parse opcode like: "op oprnd1, oprnd2, oprnd3". */ |
| 5357 | |
| 5358 | static void |
| 5359 | csky_macro_md_assemble (const char *op, |
| 5360 | const char *oprnd1, |
| 5361 | const char *oprnd2, |
| 5362 | const char *oprnd3) |
| 5363 | { |
| 5364 | char str[80]; |
| 5365 | str[0] = '\0'; |
| 5366 | strcat (str, op); |
| 5367 | if (oprnd1 != NULL) |
| 5368 | { |
| 5369 | strcat (str, " "); |
| 5370 | strcat (str, oprnd1); |
| 5371 | if (oprnd2 != NULL) |
| 5372 | { |
| 5373 | strcat (str, ","); |
| 5374 | strcat (str, oprnd2); |
| 5375 | if (oprnd3 != NULL) |
| 5376 | { |
| 5377 | strcat (str, ","); |
| 5378 | strcat (str, oprnd3); |
| 5379 | } |
| 5380 | } |
| 5381 | } |
| 5382 | md_assemble (str); |
| 5383 | return; |
| 5384 | } |
| 5385 | |
| 5386 | /* Get the string of operand. */ |
| 5387 | |
| 5388 | static int |
| 5389 | csky_get_macro_operand (char *src_s, char *dst_s, char end_sym) |
| 5390 | { |
| 5391 | int nlen = 0; |
| 5392 | while (ISSPACE (*src_s)) |
| 5393 | ++src_s; |
| 5394 | while (*src_s != end_sym) |
| 5395 | dst_s[nlen++] = *(src_s++); |
| 5396 | dst_s[nlen] = '\0'; |
| 5397 | return nlen; |
| 5398 | } |
| 5399 | |
| 5400 | /* idly 4 -> idly4. */ |
| 5401 | |
| 5402 | static void |
| 5403 | csky_idly (void) |
| 5404 | { |
| 5405 | char *s = csky_insn.opcode_end; |
| 5406 | if (!is_imm_over_range (&s, 4, 4, -1)) |
| 5407 | { |
| 5408 | as_bad (_("second operand must be 4")); |
| 5409 | return; |
| 5410 | } |
| 5411 | csky_macro_md_assemble ("idly4", NULL, NULL, NULL); |
| 5412 | return; |
| 5413 | } |
| 5414 | |
| 5415 | /* rolc rd, 1 or roltc rd, 1 -> addc rd, rd. */ |
| 5416 | |
| 5417 | static void |
| 5418 | csky_rolc (void) |
| 5419 | { |
| 5420 | char reg[10]; |
| 5421 | char *s = csky_insn.opcode_end; |
| 5422 | |
| 5423 | s += csky_get_macro_operand (s, reg, ','); |
| 5424 | ++s; |
| 5425 | |
| 5426 | if (is_imm_over_range (&s, 1, 1, -1)) |
| 5427 | { |
| 5428 | csky_macro_md_assemble ("addc", reg, reg, NULL); |
| 5429 | return; |
| 5430 | } |
| 5431 | else |
| 5432 | as_bad (_("second operand must be 1")); |
| 5433 | } |
| 5434 | |
| 5435 | /* sxtrb0(1)(2) r1, rx -> xtbr0(1)(2) r1,rx; sextb r1. */ |
| 5436 | |
| 5437 | static void |
| 5438 | csky_sxtrb (void) |
| 5439 | { |
| 5440 | char reg1[10]; |
| 5441 | char reg2[10]; |
| 5442 | |
| 5443 | char *s = csky_insn.opcode_end; |
| 5444 | s += csky_get_macro_operand (s, reg1, ','); |
| 5445 | ++s; |
| 5446 | csky_get_macro_operand (s, reg2, '\0'); |
| 5447 | |
| 5448 | csky_macro_md_assemble (csky_insn.macro->name + 1, reg1, reg2, NULL); |
| 5449 | csky_macro_md_assemble ("sextb", reg1, NULL, NULL); |
| 5450 | return; |
| 5451 | } |
| 5452 | |
| 5453 | static void |
| 5454 | csky_movtf (void) |
| 5455 | { |
| 5456 | char reg1[10]; |
| 5457 | char reg2[10]; |
| 5458 | char reg3[10]; |
| 5459 | |
| 5460 | char *s = csky_insn.opcode_end; |
| 5461 | s += csky_get_macro_operand (s, reg1, ','); |
| 5462 | ++s; |
| 5463 | |
| 5464 | s += csky_get_macro_operand (s, reg2, ','); |
| 5465 | ++s; |
| 5466 | |
| 5467 | s += csky_get_macro_operand (s, reg3, '\0'); |
| 5468 | ++s; |
| 5469 | csky_macro_md_assemble ("movt", reg1, reg2, NULL); |
| 5470 | csky_macro_md_assemble ("movf", reg1, reg3, NULL); |
| 5471 | return; |
| 5472 | } |
| 5473 | |
| 5474 | static bfd_boolean |
| 5475 | get_macro_reg_vals (int *reg1, int *reg2, int *reg3) |
| 5476 | { |
| 5477 | int nlen; |
| 5478 | char *s = csky_insn.opcode_end; |
| 5479 | |
| 5480 | *reg1 = 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 | *reg2 = csky_get_reg_val (s, &nlen); |
| 5489 | s += nlen; |
| 5490 | if (*s != ',') |
| 5491 | { |
| 5492 | csky_show_error (ERROR_MISSING_COMMA, 0, NULL, NULL); |
| 5493 | return FALSE; |
| 5494 | } |
| 5495 | s++; |
| 5496 | *reg3 = csky_get_reg_val (s, &nlen); |
| 5497 | s += nlen; |
| 5498 | if (*s != '\0') |
| 5499 | { |
| 5500 | csky_show_error (ERROR_BAD_END, 0, s, NULL); |
| 5501 | return FALSE; |
| 5502 | } |
| 5503 | if (*reg1 == -1 || *reg2 == -1 || *reg3 == -1) |
| 5504 | { |
| 5505 | as_bad (_("register number out of range")); |
| 5506 | return FALSE; |
| 5507 | } |
| 5508 | if (*reg1 != *reg2) |
| 5509 | { |
| 5510 | as_bad (_("dest and source1 must be the same register")); |
| 5511 | return FALSE; |
| 5512 | } |
| 5513 | if (*reg1 >= 15 || *reg3 >= 15) |
| 5514 | { |
| 5515 | as_bad (_("64-bit operator src/dst register must be less than 15")); |
| 5516 | return FALSE; |
| 5517 | } |
| 5518 | return TRUE; |
| 5519 | } |
| 5520 | |
| 5521 | /* addc64 rx, rx, ry -> cmplt rx, rx, addc rx, ry, addc rx+1, ry+1. */ |
| 5522 | |
| 5523 | static void |
| 5524 | csky_addc64 (void) |
| 5525 | { |
| 5526 | int reg1; |
| 5527 | int reg2; |
| 5528 | int reg3; |
| 5529 | |
| 5530 | if (!get_macro_reg_vals (®1, ®2, ®3)) |
| 5531 | return; |
| 5532 | csky_macro_md_assemble ("cmplt", |
| 5533 | csky_general_reg[reg1], |
| 5534 | csky_general_reg[reg1], |
| 5535 | NULL); |
| 5536 | csky_macro_md_assemble ("addc", |
| 5537 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], |
| 5538 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], |
| 5539 | NULL); |
| 5540 | csky_macro_md_assemble ("addc", |
| 5541 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], |
| 5542 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], |
| 5543 | NULL); |
| 5544 | return; |
| 5545 | } |
| 5546 | |
| 5547 | /* subc64 rx, rx, ry -> cmphs rx, rx, subc rx, ry, subc rx+1, ry+1. */ |
| 5548 | |
| 5549 | static void |
| 5550 | csky_subc64 (void) |
| 5551 | { |
| 5552 | int reg1; |
| 5553 | int reg2; |
| 5554 | int reg3; |
| 5555 | |
| 5556 | if (!get_macro_reg_vals (®1, ®2, ®3)) |
| 5557 | return; |
| 5558 | csky_macro_md_assemble ("cmphs", |
| 5559 | csky_general_reg[reg1], |
| 5560 | csky_general_reg[reg1], |
| 5561 | NULL); |
| 5562 | csky_macro_md_assemble ("subc", |
| 5563 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], |
| 5564 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], |
| 5565 | NULL); |
| 5566 | csky_macro_md_assemble ("subc", |
| 5567 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], |
| 5568 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], |
| 5569 | NULL); |
| 5570 | return; |
| 5571 | } |
| 5572 | |
| 5573 | /* or64 rx, rx, ry -> or rx, ry, or rx+1, ry+1. */ |
| 5574 | |
| 5575 | static void |
| 5576 | csky_or64 (void) |
| 5577 | { |
| 5578 | int reg1; |
| 5579 | int reg2; |
| 5580 | int reg3; |
| 5581 | |
| 5582 | if (!get_macro_reg_vals (®1, ®2, ®3)) |
| 5583 | return; |
| 5584 | csky_macro_md_assemble ("or", |
| 5585 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], |
| 5586 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], |
| 5587 | NULL); |
| 5588 | csky_macro_md_assemble ("or", |
| 5589 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], |
| 5590 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], |
| 5591 | NULL); |
| 5592 | return; |
| 5593 | } |
| 5594 | |
| 5595 | /* xor64 rx, rx, ry -> xor rx, ry, xor rx+1, ry+1. */ |
| 5596 | |
| 5597 | static void |
| 5598 | csky_xor64 (void) |
| 5599 | { |
| 5600 | int reg1; |
| 5601 | int reg2; |
| 5602 | int reg3; |
| 5603 | |
| 5604 | if (!get_macro_reg_vals (®1, ®2, ®3)) |
| 5605 | return; |
| 5606 | csky_macro_md_assemble ("xor", |
| 5607 | csky_general_reg[reg1 + (target_big_endian ? 1 : 0)], |
| 5608 | csky_general_reg[reg3 + (target_big_endian ? 1 : 0)], |
| 5609 | NULL); |
| 5610 | csky_macro_md_assemble ("xor", |
| 5611 | csky_general_reg[reg1 + (target_big_endian ? 0 : 1)], |
| 5612 | csky_general_reg[reg3 + (target_big_endian ? 0 : 1)], |
| 5613 | NULL); |
| 5614 | return; |
| 5615 | } |
| 5616 | |
| 5617 | /* The following are V2 macro instructions. */ |
| 5618 | |
| 5619 | /* neg rd -> not rd, rd; addi rd, 1. */ |
| 5620 | |
| 5621 | static void |
| 5622 | csky_neg (void) |
| 5623 | { |
| 5624 | char reg1[10]; |
| 5625 | |
| 5626 | char *s = csky_insn.opcode_end; |
| 5627 | s += csky_get_macro_operand (s, reg1, '\0'); |
| 5628 | ++s; |
| 5629 | |
| 5630 | csky_macro_md_assemble ("not", reg1, reg1, NULL); |
| 5631 | csky_macro_md_assemble ("addi", reg1, "1", NULL); |
| 5632 | return; |
| 5633 | } |
| 5634 | |
| 5635 | /* rsubi rd, imm16 -> not rd; addi rd, imm16 + 1 */ |
| 5636 | |
| 5637 | static void |
| 5638 | csky_rsubi (void) |
| 5639 | { |
| 5640 | char reg1[10]; |
| 5641 | char str_imm16[20]; |
| 5642 | unsigned int imm16 = 0; |
| 5643 | expressionS e; |
| 5644 | char *s = csky_insn.opcode_end; |
| 5645 | s += csky_get_macro_operand (s, reg1, ','); |
| 5646 | ++s; |
| 5647 | |
| 5648 | s = parse_exp (s, &e); |
| 5649 | if (e.X_op == O_constant) |
| 5650 | imm16 = e.X_add_number; |
| 5651 | else |
| 5652 | csky_show_error (ERROR_IMM_ILLEGAL, 2, NULL, NULL); |
| 5653 | |
| 5654 | sprintf (str_imm16, "%d", imm16 + 1); |
| 5655 | |
| 5656 | csky_macro_md_assemble ("not", reg1, reg1, NULL); |
| 5657 | csky_macro_md_assemble ("addi", reg1, str_imm16, NULL); |
| 5658 | return; |
| 5659 | } |
| 5660 | |
| 5661 | /* Such as: asrc rd -> asrc rd, rd, 1. */ |
| 5662 | |
| 5663 | static void |
| 5664 | csky_arith (void) |
| 5665 | { |
| 5666 | char reg1[10]; |
| 5667 | char *s = csky_insn.opcode_end; |
| 5668 | s += csky_get_macro_operand (s, reg1, '\0'); |
| 5669 | ++s; |
| 5670 | csky_macro_md_assemble (csky_insn.macro->name, reg1, reg1, "1"); |
| 5671 | return; |
| 5672 | } |
| 5673 | |
| 5674 | /* decne rd -> if ck802: subi rd, 1; cmpnei rd, 0. |
| 5675 | else: decne rd, rd, 1 */ |
| 5676 | |
| 5677 | static void |
| 5678 | csky_decne (void) |
| 5679 | { |
| 5680 | char reg1[10]; |
| 5681 | char *s = csky_insn.opcode_end; |
| 5682 | s += csky_get_macro_operand (s, reg1, '\0'); |
| 5683 | ++s; |
| 5684 | if (IS_CSKY_ARCH_802 (mach_flag)) |
| 5685 | { |
| 5686 | csky_macro_md_assemble ("subi", reg1, "1", NULL); |
| 5687 | csky_macro_md_assemble ("cmpnei", reg1, "0", NULL); |
| 5688 | } |
| 5689 | else |
| 5690 | csky_macro_md_assemble ("decne", reg1, reg1, "1"); |
| 5691 | return; |
| 5692 | } |
| 5693 | |
| 5694 | /* If -mnolrw, lrw rd, imm -> movih rd, imm_hi16; ori rd, imm_lo16. */ |
| 5695 | |
| 5696 | static void |
| 5697 | csky_lrw (void) |
| 5698 | { |
| 5699 | char reg1[10]; |
| 5700 | char imm[40]; |
| 5701 | char imm_hi16[40]; |
| 5702 | char imm_lo16[40]; |
| 5703 | |
| 5704 | char *s = csky_insn.opcode_end; |
| 5705 | s += csky_get_macro_operand (s, reg1, ','); |
| 5706 | ++s; |
| 5707 | s += csky_get_macro_operand (s, imm, '\0'); |
| 5708 | ++s; |
| 5709 | |
| 5710 | imm_hi16[0] = '\0'; |
| 5711 | strcat (imm_hi16, "("); |
| 5712 | strcat (imm_hi16, imm); |
| 5713 | strcat (imm_hi16, ") >> 16"); |
| 5714 | imm_lo16[0] = '\0'; |
| 5715 | strcat (imm_lo16, "("); |
| 5716 | strcat (imm_lo16, imm); |
| 5717 | strcat (imm_lo16, ") & 0xffff"); |
| 5718 | |
| 5719 | csky_macro_md_assemble ("movih", reg1, imm_hi16, NULL); |
| 5720 | csky_macro_md_assemble ("ori", reg1, reg1, imm_lo16); |
| 5721 | |
| 5722 | return; |
| 5723 | } |
| 5724 | |
| 5725 | /* The following are worker functions for C-SKY v1. */ |
| 5726 | |
| 5727 | bfd_boolean |
| 5728 | v1_work_lrw (void) |
| 5729 | { |
| 5730 | int reg; |
| 5731 | int output_literal = csky_insn.val[1]; |
| 5732 | |
| 5733 | reg = csky_insn.val[0]; |
| 5734 | csky_insn.isize = 2; |
| 5735 | csky_insn.output = frag_more (2); |
| 5736 | if (csky_insn.e1.X_op == O_constant |
| 5737 | && csky_insn.e1.X_add_number <= 0x7f |
| 5738 | && csky_insn.e1.X_add_number >= 0) |
| 5739 | /* lrw to movi. */ |
| 5740 | csky_insn.inst = 0x6000 | reg | (csky_insn.e1.X_add_number << 4); |
| 5741 | else |
| 5742 | { |
| 5743 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 5744 | csky_insn.inst |= reg << 8; |
| 5745 | if (output_literal) |
| 5746 | { |
| 5747 | int n = enter_literal (&csky_insn.e1, 0, 0, 0); |
| 5748 | |
| 5749 | /* Create a reference to pool entry. */ |
| 5750 | csky_insn.e1.X_op = O_symbol; |
| 5751 | csky_insn.e1.X_add_symbol = poolsym; |
| 5752 | csky_insn.e1.X_add_number = n << 2; |
| 5753 | } |
| 5754 | |
| 5755 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 5756 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 5757 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 5758 | { |
| 5759 | literal_insn_offset->tls_addend.frag = frag_now; |
| 5760 | literal_insn_offset->tls_addend.offset |
| 5761 | = (csky_insn.output |
| 5762 | - literal_insn_offset->tls_addend.frag->fr_literal); |
| 5763 | } |
| 5764 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, 2, |
| 5765 | &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM8BY4); |
| 5766 | } |
| 5767 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 5768 | |
| 5769 | return TRUE; |
| 5770 | } |
| 5771 | |
| 5772 | bfd_boolean |
| 5773 | v1_work_fpu_fo (void) |
| 5774 | { |
| 5775 | int i = 0; |
| 5776 | int inst; |
| 5777 | int greg = -1; |
| 5778 | char buff[50]; |
| 5779 | struct csky_opcode_info *opinfo = NULL; |
| 5780 | |
| 5781 | if (csky_insn.isize == 4) |
| 5782 | opinfo = &csky_insn.opcode->op32[csky_insn.opcode_idx]; |
| 5783 | else if (csky_insn.isize == 2) |
| 5784 | opinfo = &csky_insn.opcode->op16[csky_insn.opcode_idx]; |
| 5785 | |
| 5786 | /* Firstly, get general reg. */ |
| 5787 | for (i = 0;i < opinfo->operand_num; i++) |
| 5788 | if (opinfo->oprnd.oprnds[i].type == OPRND_TYPE_GREG0_15) |
| 5789 | greg = csky_insn.val[i]; |
| 5790 | gas_assert (greg != -1); |
| 5791 | |
| 5792 | /* Secondly, get float inst. */ |
| 5793 | csky_generate_insn (); |
| 5794 | inst = csky_insn.inst; |
| 5795 | |
| 5796 | /* Now get greg and inst, we can write instruction to floating unit. */ |
| 5797 | sprintf (buff, "lrw %s,0x%x", csky_general_reg[greg], inst); |
| 5798 | md_assemble (buff); |
| 5799 | sprintf (buff, "cpwir %s", csky_general_reg[greg]); |
| 5800 | md_assemble (buff); |
| 5801 | |
| 5802 | return FALSE; |
| 5803 | } |
| 5804 | |
| 5805 | bfd_boolean |
| 5806 | v1_work_fpu_fo_fc (void) |
| 5807 | { |
| 5808 | int i = 0; |
| 5809 | int inst; |
| 5810 | int greg = -1; |
| 5811 | char buff[50]; |
| 5812 | struct csky_opcode_info *opinfo = NULL; |
| 5813 | |
| 5814 | if (csky_insn.isize == 4) |
| 5815 | opinfo = &csky_insn.opcode->op32[csky_insn.opcode_idx]; |
| 5816 | else if (csky_insn.isize == 2) |
| 5817 | opinfo = &csky_insn.opcode->op16[csky_insn.opcode_idx]; |
| 5818 | |
| 5819 | /* Firstly, get general reg. */ |
| 5820 | for (i = 0;i < opinfo->operand_num; i++) |
| 5821 | if (opinfo->oprnd.oprnds[i].type == OPRND_TYPE_GREG0_15) |
| 5822 | greg = csky_insn.val[i]; |
| 5823 | gas_assert (greg != -1); |
| 5824 | |
| 5825 | /* Secondly, get float inst. */ |
| 5826 | csky_generate_insn (); |
| 5827 | inst = csky_insn.inst; |
| 5828 | |
| 5829 | /* Now get greg and inst, we can write instruction to floating unit. */ |
| 5830 | sprintf (buff, "lrw %s,0x%x", csky_general_reg[greg], inst); |
| 5831 | md_assemble (buff); |
| 5832 | sprintf (buff, "cpwir %s", csky_general_reg[greg]); |
| 5833 | md_assemble (buff); |
| 5834 | sprintf (buff, "cprc"); |
| 5835 | md_assemble (buff); |
| 5836 | |
| 5837 | return FALSE; |
| 5838 | } |
| 5839 | |
| 5840 | bfd_boolean |
| 5841 | v1_work_fpu_write (void) |
| 5842 | { |
| 5843 | int greg; |
| 5844 | int freg; |
| 5845 | char buff[50]; |
| 5846 | |
| 5847 | greg = csky_insn.val[0]; |
| 5848 | freg = csky_insn.val[1]; |
| 5849 | |
| 5850 | /* Now get greg and freg, we can write instruction to floating unit. */ |
| 5851 | sprintf (buff, "cpwgr %s,%s", csky_general_reg[greg], csky_cp_reg[freg]); |
| 5852 | md_assemble (buff); |
| 5853 | |
| 5854 | return FALSE; |
| 5855 | } |
| 5856 | |
| 5857 | bfd_boolean |
| 5858 | v1_work_fpu_read (void) |
| 5859 | { |
| 5860 | int greg; |
| 5861 | int freg; |
| 5862 | char buff[50]; |
| 5863 | |
| 5864 | greg = csky_insn.val[0]; |
| 5865 | freg = csky_insn.val[1]; |
| 5866 | /* Now get greg and freg, we can write instruction to floating unit. */ |
| 5867 | sprintf (buff, "cprgr %s,%s", csky_general_reg[greg], csky_cp_reg[freg]); |
| 5868 | md_assemble (buff); |
| 5869 | |
| 5870 | return FALSE; |
| 5871 | } |
| 5872 | |
| 5873 | bfd_boolean |
| 5874 | v1_work_fpu_writed (void) |
| 5875 | { |
| 5876 | int greg; |
| 5877 | int freg; |
| 5878 | char buff[50]; |
| 5879 | |
| 5880 | greg = csky_insn.val[0]; |
| 5881 | freg = csky_insn.val[1]; |
| 5882 | |
| 5883 | if (greg & 0x1) |
| 5884 | { |
| 5885 | as_bad (_("even register number required")); |
| 5886 | return FALSE; |
| 5887 | } |
| 5888 | /* Now get greg and freg, we can write instruction to floating unit. */ |
| 5889 | if (target_big_endian) |
| 5890 | sprintf (buff, "cpwgr %s,%s", |
| 5891 | csky_general_reg[greg + 1], csky_cp_reg[freg]); |
| 5892 | else |
| 5893 | sprintf (buff, "cpwgr %s,%s", |
| 5894 | csky_general_reg[greg], csky_cp_reg[freg]); |
| 5895 | md_assemble (buff); |
| 5896 | if (target_big_endian) |
| 5897 | sprintf (buff, "cpwgr %s,%s", |
| 5898 | csky_general_reg[greg], csky_cp_reg[freg + 1]); |
| 5899 | else |
| 5900 | sprintf (buff, "cpwgr %s,%s", |
| 5901 | csky_general_reg[greg + 1], csky_cp_reg[freg + 1]); |
| 5902 | md_assemble (buff); |
| 5903 | |
| 5904 | return FALSE; |
| 5905 | } |
| 5906 | |
| 5907 | bfd_boolean |
| 5908 | v1_work_fpu_readd (void) |
| 5909 | { |
| 5910 | int greg; |
| 5911 | int freg; |
| 5912 | char buff[50]; |
| 5913 | |
| 5914 | greg = csky_insn.val[0]; |
| 5915 | freg = csky_insn.val[1]; |
| 5916 | |
| 5917 | if (greg & 0x1) |
| 5918 | { |
| 5919 | as_bad (_("even register number required")); |
| 5920 | return FALSE; |
| 5921 | } |
| 5922 | /* Now get greg and freg, we can write instruction to floating unit. */ |
| 5923 | if (target_big_endian) |
| 5924 | sprintf (buff, "cprgr %s,%s", |
| 5925 | csky_general_reg[greg + 1], csky_cp_reg[freg]); |
| 5926 | else |
| 5927 | sprintf (buff, "cprgr %s,%s", |
| 5928 | csky_general_reg[greg], csky_cp_reg[freg]); |
| 5929 | md_assemble (buff); |
| 5930 | if (target_big_endian) |
| 5931 | sprintf (buff, "cprgr %s,%s", |
| 5932 | csky_general_reg[greg], csky_cp_reg[freg + 1]); |
| 5933 | else |
| 5934 | sprintf (buff, "cprgr %s,%s", |
| 5935 | csky_general_reg[greg + 1], csky_cp_reg[freg + 1]); |
| 5936 | md_assemble (buff); |
| 5937 | |
| 5938 | return FALSE; |
| 5939 | } |
| 5940 | |
| 5941 | /* The following are for csky pseudo handling. */ |
| 5942 | |
| 5943 | bfd_boolean |
| 5944 | v1_work_jbsr (void) |
| 5945 | { |
| 5946 | csky_insn.output = frag_more (2); |
| 5947 | if (do_force2bsr) |
| 5948 | /* Generate fixup BFD_RELOC_CKCORE_PCREL_IMM11BY2. */ |
| 5949 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 5950 | 2, & csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM11BY2); |
| 5951 | else |
| 5952 | { |
| 5953 | /* Using jsri instruction. */ |
| 5954 | const char *name = "jsri"; |
| 5955 | csky_insn.opcode = (struct csky_opcode *) |
| 5956 | hash_find (csky_opcodes_hash, name); |
| 5957 | csky_insn.opcode_idx = 0; |
| 5958 | csky_insn.isize = 2; |
| 5959 | |
| 5960 | int n = enter_literal (&csky_insn.e1, 1, 0, 0); |
| 5961 | |
| 5962 | /* Create a reference to pool entry. */ |
| 5963 | csky_insn.e1.X_op = O_symbol; |
| 5964 | csky_insn.e1.X_add_symbol = poolsym; |
| 5965 | csky_insn.e1.X_add_number = n << 2; |
| 5966 | |
| 5967 | /* Generate fixup BFD_RELOC_CKCORE_PCREL_IMM8BY4. */ |
| 5968 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 5969 | 2, & csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM8BY4); |
| 5970 | |
| 5971 | if (csky_insn.e1.X_op != O_absent && do_jsri2bsr) |
| 5972 | /* Generate fixup BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2. */ |
| 5973 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 5974 | 2, & (litpool + (csky_insn.e1.X_add_number >> 2))->e, |
| 5975 | 1, BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2); |
| 5976 | } |
| 5977 | csky_generate_insn (); |
| 5978 | |
| 5979 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 5980 | |
| 5981 | return TRUE; |
| 5982 | } |
| 5983 | |
| 5984 | /* The following are worker functions for csky v2 instruction handling. */ |
| 5985 | |
| 5986 | /* For nie/nir/ipush/ipop. */ |
| 5987 | |
| 5988 | bfd_boolean |
| 5989 | v2_work_istack (void) |
| 5990 | { |
| 5991 | if (!do_intr_stack) |
| 5992 | { |
| 5993 | csky_show_error (ERROR_OPCODE_ILLEGAL, 0, NULL, NULL); |
| 5994 | return FALSE; |
| 5995 | } |
| 5996 | csky_insn.output = frag_more (csky_insn.isize); |
| 5997 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 5998 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 5999 | return TRUE; |
| 6000 | } |
| 6001 | |
| 6002 | bfd_boolean |
| 6003 | v2_work_btsti (void) |
| 6004 | { |
| 6005 | if (!do_extend_lrw |
| 6006 | && (csky_insn.flag_force == INSN_OPCODE16F |
| 6007 | || IS_CSKY_ARCH_801 (mach_flag))) |
| 6008 | { |
| 6009 | csky_show_error (ERROR_OPCODE_ILLEGAL, 0, NULL, NULL); |
| 6010 | return FALSE; |
| 6011 | } |
| 6012 | if (!do_extend_lrw && csky_insn.isize == 2) |
| 6013 | csky_insn.isize = 4; |
| 6014 | /* Generate relax or reloc if necessary. */ |
| 6015 | csky_generate_frags (); |
| 6016 | /* Generate the insn by mask. */ |
| 6017 | csky_generate_insn (); |
| 6018 | /* Write inst to frag. */ |
| 6019 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6020 | return TRUE; |
| 6021 | } |
| 6022 | |
| 6023 | bfd_boolean |
| 6024 | v2_work_addi (void) |
| 6025 | { |
| 6026 | csky_insn.isize = 2; |
| 6027 | if (csky_insn.number == 2) |
| 6028 | { |
| 6029 | if (csky_insn.val[0] == 14 |
| 6030 | && csky_insn.val[1] >= 0 && csky_insn.val[1] <= 0x1fc |
| 6031 | && (csky_insn.val[1] & 0x3) == 0 |
| 6032 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6033 | { |
| 6034 | /* addi sp, sp, imm. */ |
| 6035 | csky_insn.inst = 0x1400 | ((csky_insn.val[1] >> 2) & 0x1f); |
| 6036 | csky_insn.inst |= (csky_insn.val[1] << 1) & 0x300; |
| 6037 | csky_insn.output = frag_more (2); |
| 6038 | } |
| 6039 | else if (csky_insn.val[0] < 8 |
| 6040 | && csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x100 |
| 6041 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6042 | { |
| 6043 | csky_insn.inst = 0x2000 | (csky_insn.val[0] << 8); |
| 6044 | csky_insn.inst |= (csky_insn.val[1] - 1); |
| 6045 | csky_insn.output = frag_more (2); |
| 6046 | } |
| 6047 | else if (csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x10000 |
| 6048 | && csky_insn.flag_force != INSN_OPCODE16F |
| 6049 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6050 | { |
| 6051 | csky_insn.inst = 0xe4000000 | (csky_insn.val[0] << 21); |
| 6052 | csky_insn.inst |= csky_insn.val[0] << 16; |
| 6053 | csky_insn.inst |= (csky_insn.val[1] - 1); |
| 6054 | csky_insn.isize = 4; |
| 6055 | csky_insn.output = frag_more (4); |
| 6056 | } |
| 6057 | else |
| 6058 | { |
| 6059 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, |
| 6060 | csky_insn.opcode_end, NULL); |
| 6061 | return FALSE; |
| 6062 | } |
| 6063 | } |
| 6064 | else if (csky_insn.number == 3) |
| 6065 | { |
| 6066 | if (csky_insn.val[0] == 14 |
| 6067 | && csky_insn.val[1] == 14 |
| 6068 | && csky_insn.val[2] >= 0 && csky_insn.val[2] <= 0x1fc |
| 6069 | && (csky_insn.val[2] & 0x3) == 0 |
| 6070 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6071 | { |
| 6072 | csky_insn.inst = 0x1400 | ((csky_insn.val[2] >> 2) & 0x1f); |
| 6073 | csky_insn.inst |= (csky_insn.val[2] << 1) & 0x300; |
| 6074 | csky_insn.output = frag_more (2); |
| 6075 | } |
| 6076 | else if (csky_insn.val[0] < 8 |
| 6077 | && csky_insn.val[1] == 14 |
| 6078 | && csky_insn.val[2] >= 0 && csky_insn.val[2] <= 0x3fc |
| 6079 | && (csky_insn.val[2] & 0x3) == 0 |
| 6080 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6081 | { |
| 6082 | csky_insn.inst = 0x1800 | (csky_insn.val[0] << 8); |
| 6083 | csky_insn.inst |= csky_insn.val[2] >> 2; |
| 6084 | csky_insn.output = frag_more (2); |
| 6085 | } |
| 6086 | else if (csky_insn.val[0] < 8 |
| 6087 | && csky_insn.val[0] == csky_insn.val[1] |
| 6088 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x100 |
| 6089 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6090 | { |
| 6091 | csky_insn.inst = 0x2000 | (csky_insn.val[0] << 8); |
| 6092 | csky_insn.inst |= (csky_insn.val[2] - 1); |
| 6093 | csky_insn.output = frag_more (2); |
| 6094 | } |
| 6095 | else if (csky_insn.val[0] < 8 |
| 6096 | && csky_insn.val[1] < 8 |
| 6097 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x8 |
| 6098 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6099 | { |
| 6100 | csky_insn.inst = 0x5802 | (csky_insn.val[0] << 5); |
| 6101 | csky_insn.inst |= csky_insn.val[1] << 8; |
| 6102 | csky_insn.inst |= (csky_insn.val[2] - 1) << 2; |
| 6103 | csky_insn.output = frag_more (2); |
| 6104 | } |
| 6105 | else if (csky_insn.val[1] == 28 |
| 6106 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x40000 |
| 6107 | && csky_insn.flag_force != INSN_OPCODE16F |
| 6108 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6109 | { |
| 6110 | csky_insn.inst = 0xcc1c0000 | (csky_insn.val[0] << 21); |
| 6111 | csky_insn.isize = 4; |
| 6112 | csky_insn.output = frag_more (4); |
| 6113 | if (insn_reloc == BFD_RELOC_CKCORE_GOTOFF) |
| 6114 | { |
| 6115 | fix_new_exp (frag_now, csky_insn.output-frag_now->fr_literal, |
| 6116 | 4, &csky_insn.e1, 0, BFD_RELOC_CKCORE_GOTOFF_IMM18); |
| 6117 | } |
| 6118 | else |
| 6119 | csky_insn.inst |= (csky_insn.val[2] - 1); |
| 6120 | } |
| 6121 | else if (csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x1000 |
| 6122 | && csky_insn.flag_force != INSN_OPCODE16F |
| 6123 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6124 | { |
| 6125 | csky_insn.inst = 0xe4000000 | (csky_insn.val[0] << 21); |
| 6126 | csky_insn.inst |= csky_insn.val[1] << 16; |
| 6127 | csky_insn.inst |= (csky_insn.val[2] - 1); |
| 6128 | csky_insn.isize = 4; |
| 6129 | csky_insn.output = frag_more (4); |
| 6130 | } |
| 6131 | else |
| 6132 | { |
| 6133 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, |
| 6134 | (char *)csky_insn.opcode_end, NULL); |
| 6135 | return FALSE; |
| 6136 | } |
| 6137 | } |
| 6138 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6139 | |
| 6140 | return TRUE; |
| 6141 | } |
| 6142 | |
| 6143 | bfd_boolean |
| 6144 | v2_work_subi (void) |
| 6145 | { |
| 6146 | csky_insn.isize = 2; |
| 6147 | if (csky_insn.number == 2) |
| 6148 | { |
| 6149 | if (csky_insn.val[0] == 14 |
| 6150 | && csky_insn.val[1] >= 0 && csky_insn.val[2] <= 0x1fc |
| 6151 | && (csky_insn.val[1] & 0x3) == 0 |
| 6152 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6153 | { |
| 6154 | csky_insn.inst = 0x1420 | ((csky_insn.val[1] >> 2) & 0x1f); |
| 6155 | csky_insn.inst |= (csky_insn.val[1] << 1) & 0x300; |
| 6156 | } |
| 6157 | else if (csky_insn.val[0] < 8 |
| 6158 | && csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x100 |
| 6159 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6160 | { |
| 6161 | csky_insn.inst = 0x2800 | (csky_insn.val[0] << 8); |
| 6162 | csky_insn.inst |= (csky_insn.val[1] - 1); |
| 6163 | } |
| 6164 | else if (csky_insn.val[1] >= 1 && csky_insn.val[1] <= 0x10000 |
| 6165 | && csky_insn.flag_force != INSN_OPCODE16F |
| 6166 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6167 | { |
| 6168 | csky_insn.inst = 0xe4001000 | (csky_insn.val[0] << 21); |
| 6169 | csky_insn.inst |= csky_insn.val[0] << 16; |
| 6170 | csky_insn.inst |= (csky_insn.val[1] - 1); |
| 6171 | csky_insn.isize = 4; |
| 6172 | } |
| 6173 | else |
| 6174 | { |
| 6175 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, |
| 6176 | (char *)csky_insn.opcode_end, NULL); |
| 6177 | return FALSE; |
| 6178 | } |
| 6179 | } |
| 6180 | else if (csky_insn.number == 3) |
| 6181 | { |
| 6182 | if (csky_insn.val[0] == 14 |
| 6183 | && csky_insn.val[1] == 14 |
| 6184 | && csky_insn.val[2] >= 0 && csky_insn.val[2] <= 0x1fc |
| 6185 | && (csky_insn.val[2] & 0x3) == 0 |
| 6186 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6187 | { |
| 6188 | csky_insn.inst = 0x1420 | ((csky_insn.val[2] >> 2) & 0x1f); |
| 6189 | csky_insn.inst |= (csky_insn.val[2] << 1) & 0x300; |
| 6190 | } |
| 6191 | |
| 6192 | else if (csky_insn.val[0] < 8 |
| 6193 | && csky_insn.val[0] == csky_insn.val[1] |
| 6194 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x100 |
| 6195 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6196 | { |
| 6197 | csky_insn.inst = 0x2800 | (csky_insn.val[0] << 8); |
| 6198 | csky_insn.inst |= (csky_insn.val[2] - 1); |
| 6199 | } |
| 6200 | else if (csky_insn.val[0] < 8 |
| 6201 | && csky_insn.val[1] < 8 |
| 6202 | && csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x8 |
| 6203 | && csky_insn.flag_force != INSN_OPCODE32F) |
| 6204 | { |
| 6205 | csky_insn.inst = 0x5803 | (csky_insn.val[0] << 5); |
| 6206 | csky_insn.inst |= csky_insn.val[1] << 8; |
| 6207 | csky_insn.inst |= (csky_insn.val[2] - 1) << 2; |
| 6208 | } |
| 6209 | else if (csky_insn.val[2] >= 1 && csky_insn.val[2] <= 0x1000 |
| 6210 | && csky_insn.flag_force != INSN_OPCODE16F |
| 6211 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6212 | { |
| 6213 | csky_insn.inst = 0xe4001000 | (csky_insn.val[0] << 21); |
| 6214 | csky_insn.inst |= csky_insn.val[1] << 16; |
| 6215 | csky_insn.inst |= (csky_insn.val[2] - 1); |
| 6216 | csky_insn.isize = 4; |
| 6217 | } |
| 6218 | else |
| 6219 | { |
| 6220 | csky_show_error (ERROR_OPERANDS_ILLEGAL, 0, |
| 6221 | (char *)csky_insn.opcode_end, NULL); |
| 6222 | return FALSE; |
| 6223 | } |
| 6224 | } |
| 6225 | csky_insn.output = frag_more (csky_insn.isize); |
| 6226 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6227 | |
| 6228 | return TRUE; |
| 6229 | } |
| 6230 | |
| 6231 | bfd_boolean |
| 6232 | v2_work_add_sub (void) |
| 6233 | { |
| 6234 | if (csky_insn.number == 3 |
| 6235 | && (csky_insn.val[0] == csky_insn.val[1] |
| 6236 | || csky_insn.val[0] == csky_insn.val[2]) |
| 6237 | && csky_insn.val[0] <= 15 |
| 6238 | && csky_insn.val[1] <= 15 |
| 6239 | && csky_insn.val[2] <= 15) |
| 6240 | { |
| 6241 | if (!strstr (csky_insn.opcode->mnemonic, "sub") |
| 6242 | || csky_insn.val[0] == csky_insn.val[1]) |
| 6243 | { |
| 6244 | csky_insn.opcode_idx = 0; |
| 6245 | csky_insn.isize = 2; |
| 6246 | if (csky_insn.val[0] == csky_insn.val[1]) |
| 6247 | csky_insn.val[1] = csky_insn.val[2]; |
| 6248 | |
| 6249 | csky_insn.number = 2; |
| 6250 | |
| 6251 | } |
| 6252 | } |
| 6253 | if (csky_insn.isize == 4 |
| 6254 | && IS_CSKY_ARCH_801 (mach_flag)) |
| 6255 | { |
| 6256 | if (csky_insn.number == 3) |
| 6257 | { |
| 6258 | if (csky_insn.val[0] > 7) |
| 6259 | csky_show_error (ERROR_REG_OVER_RANGE, 1, |
| 6260 | (void *)(long)csky_insn.val[0], NULL); |
| 6261 | if (csky_insn.val[1] > 7) |
| 6262 | csky_show_error (ERROR_REG_OVER_RANGE, 2, |
| 6263 | (void *)(long)csky_insn.val[1], NULL); |
| 6264 | if (csky_insn.val[2] > 7) |
| 6265 | csky_show_error (ERROR_REG_OVER_RANGE, 3, |
| 6266 | (void *)(long)csky_insn.val[2], NULL); |
| 6267 | } |
| 6268 | else |
| 6269 | { |
| 6270 | if (csky_insn.val[0] > 15) |
| 6271 | csky_show_error (ERROR_REG_OVER_RANGE, 1, |
| 6272 | (void *)(long)csky_insn.val[0], NULL); |
| 6273 | if (csky_insn.val[1] > 15) |
| 6274 | csky_show_error (ERROR_REG_OVER_RANGE, 2, |
| 6275 | (void *)(long)csky_insn.val[1], NULL); |
| 6276 | } |
| 6277 | return FALSE; |
| 6278 | } |
| 6279 | /* sub rz, rx. */ |
| 6280 | /* Generate relax or reloc if necessary. */ |
| 6281 | csky_generate_frags (); |
| 6282 | /* Generate the insn by mask. */ |
| 6283 | csky_generate_insn (); |
| 6284 | /* Write inst to frag. */ |
| 6285 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6286 | return TRUE; |
| 6287 | } |
| 6288 | |
| 6289 | bfd_boolean |
| 6290 | v2_work_rotlc (void) |
| 6291 | { |
| 6292 | const char *name = "addc"; |
| 6293 | csky_insn.opcode |
| 6294 | = (struct csky_opcode *) hash_find (csky_opcodes_hash, name); |
| 6295 | csky_insn.opcode_idx = 0; |
| 6296 | if (csky_insn.isize == 2) |
| 6297 | { |
| 6298 | /* addc rz, rx. */ |
| 6299 | csky_insn.number = 2; |
| 6300 | csky_insn.val[1] = csky_insn.val[0]; |
| 6301 | } |
| 6302 | else |
| 6303 | { |
| 6304 | csky_insn.number = 3; |
| 6305 | /* addc rz, rx, ry. */ |
| 6306 | csky_insn.val[1] = csky_insn.val[0]; |
| 6307 | csky_insn.val[2] = csky_insn.val[0]; |
| 6308 | } |
| 6309 | /* Generate relax or reloc if necessary. */ |
| 6310 | csky_generate_frags (); |
| 6311 | /* Generate the insn by mask. */ |
| 6312 | csky_generate_insn (); |
| 6313 | /* Write inst to frag. */ |
| 6314 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6315 | return TRUE; |
| 6316 | } |
| 6317 | |
| 6318 | bfd_boolean |
| 6319 | v2_work_bgeni (void) |
| 6320 | { |
| 6321 | const char *name = NULL; |
| 6322 | int imm = csky_insn.val[1]; |
| 6323 | int val = 1 << imm; |
| 6324 | if (imm < 16) |
| 6325 | name = "movi"; |
| 6326 | else |
| 6327 | { |
| 6328 | name = "movih"; |
| 6329 | val >>= 16; |
| 6330 | } |
| 6331 | csky_insn.opcode |
| 6332 | = (struct csky_opcode *) hash_find (csky_opcodes_hash, name); |
| 6333 | csky_insn.opcode_idx = 0; |
| 6334 | csky_insn.val[1] = val; |
| 6335 | |
| 6336 | /* Generate relax or reloc if necessary. */ |
| 6337 | csky_generate_frags (); |
| 6338 | /* Generate the insn by mask. */ |
| 6339 | csky_generate_insn (); |
| 6340 | /* Write inst to frag. */ |
| 6341 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6342 | return TRUE; |
| 6343 | } |
| 6344 | |
| 6345 | bfd_boolean |
| 6346 | v2_work_not (void) |
| 6347 | { |
| 6348 | const char *name = "nor"; |
| 6349 | csky_insn.opcode |
| 6350 | = (struct csky_opcode *) hash_find (csky_opcodes_hash, name); |
| 6351 | csky_insn.opcode_idx = 0; |
| 6352 | if (csky_insn.number == 1) |
| 6353 | { |
| 6354 | csky_insn.val[1] = csky_insn.val[0]; |
| 6355 | if (csky_insn.val[0] < 16) |
| 6356 | { |
| 6357 | /* 16 bits nor rz, rz. */ |
| 6358 | csky_insn.number = 2; |
| 6359 | csky_insn.isize = 2; |
| 6360 | } |
| 6361 | else |
| 6362 | { |
| 6363 | csky_insn.val[2] = csky_insn.val[0]; |
| 6364 | csky_insn.number = 3; |
| 6365 | csky_insn.isize = 4; |
| 6366 | } |
| 6367 | } |
| 6368 | if (csky_insn.number == 2) |
| 6369 | { |
| 6370 | if (csky_insn.val[0] == csky_insn.val[1] |
| 6371 | && csky_insn.val[0] < 16) |
| 6372 | { |
| 6373 | /* 16 bits nor rz, rz. */ |
| 6374 | csky_insn.number = 2; |
| 6375 | csky_insn.isize = 2; |
| 6376 | } |
| 6377 | else |
| 6378 | { |
| 6379 | csky_insn.val[2] = csky_insn.val[1]; |
| 6380 | csky_insn.number = 3; |
| 6381 | csky_insn.isize = 4; |
| 6382 | } |
| 6383 | } |
| 6384 | |
| 6385 | /* Generate relax or reloc if necessary. */ |
| 6386 | csky_generate_frags (); |
| 6387 | /* Generate the insn by mask. */ |
| 6388 | csky_generate_insn (); |
| 6389 | /* Write inst to frag. */ |
| 6390 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6391 | return TRUE; |
| 6392 | } |
| 6393 | |
| 6394 | bfd_boolean |
| 6395 | v2_work_jbtf (void) |
| 6396 | { |
| 6397 | if (csky_insn.e1.X_add_symbol == NULL || csky_insn.e1.X_op == O_constant) |
| 6398 | { |
| 6399 | csky_show_error (ERROR_UNDEFINE, 0, (void *)"operand is invalid", NULL); |
| 6400 | return FALSE; |
| 6401 | } |
| 6402 | |
| 6403 | if (IS_CSKY_ARCH_801 (mach_flag)) |
| 6404 | { |
| 6405 | /* CK801 doesn't have 32-bit bt/bf insns or a jump insn with a |
| 6406 | range larger than SCOND_DISP16. Relax to a short jump around |
| 6407 | an unconditional branch, and give up if that overflows too. */ |
| 6408 | csky_insn.output = frag_var (rs_machine_dependent, |
| 6409 | SCOND_DISP16_LEN, |
| 6410 | SCOND_DISP10_LEN, |
| 6411 | SCOND_DISP10, |
| 6412 | csky_insn.e1.X_add_symbol, |
| 6413 | csky_insn.e1.X_add_number, |
| 6414 | 0); |
| 6415 | csky_insn.isize = 2; |
| 6416 | csky_insn.max = SCOND_DISP16_LEN; |
| 6417 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 6418 | } |
| 6419 | else if (do_long_jump && !IS_CSKY_ARCH_802 (mach_flag)) |
| 6420 | { |
| 6421 | /* Generate relax with jcondition. |
| 6422 | Note that CK802 doesn't support the JMPI instruction so |
| 6423 | we cannot relax to a jump with a 32-bit offset. */ |
| 6424 | csky_insn.output = frag_var (rs_machine_dependent, |
| 6425 | JCOND_DISP32_LEN, |
| 6426 | JCOND_DISP10_LEN, |
| 6427 | JCOND_DISP10, |
| 6428 | csky_insn.e1.X_add_symbol, |
| 6429 | csky_insn.e1.X_add_number, |
| 6430 | 0); |
| 6431 | csky_insn.isize = 2; |
| 6432 | csky_insn.max = JCOND_DISP32_LEN; |
| 6433 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 6434 | } |
| 6435 | else |
| 6436 | { |
| 6437 | /* Generate relax with condition. */ |
| 6438 | csky_insn.output = frag_var (rs_machine_dependent, |
| 6439 | COND_DISP16_LEN, |
| 6440 | COND_DISP10_LEN, |
| 6441 | COND_DISP10, |
| 6442 | csky_insn.e1.X_add_symbol, |
| 6443 | csky_insn.e1.X_add_number, |
| 6444 | 0); |
| 6445 | csky_insn.isize = 2; |
| 6446 | csky_insn.max = COND_DISP16_LEN; |
| 6447 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 6448 | } |
| 6449 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6450 | |
| 6451 | return TRUE; |
| 6452 | } |
| 6453 | |
| 6454 | bfd_boolean |
| 6455 | v2_work_jbr (void) |
| 6456 | { |
| 6457 | if (csky_insn.e1.X_add_symbol == NULL || csky_insn.e1.X_op == O_constant) |
| 6458 | { |
| 6459 | csky_show_error (ERROR_UNDEFINE, 0, (void *)"operand is invalid", NULL); |
| 6460 | return FALSE; |
| 6461 | } |
| 6462 | |
| 6463 | if (do_long_jump |
| 6464 | && !IS_CSKY_ARCH_801 (mach_flag) |
| 6465 | && !IS_CSKY_ARCH_802 (mach_flag)) |
| 6466 | { |
| 6467 | csky_insn.output = frag_var (rs_machine_dependent, |
| 6468 | JUNCD_DISP32_LEN, |
| 6469 | JUNCD_DISP10_LEN, |
| 6470 | JUNCD_DISP10, |
| 6471 | csky_insn.e1.X_add_symbol, |
| 6472 | csky_insn.e1.X_add_number, |
| 6473 | 0); |
| 6474 | |
| 6475 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 6476 | csky_insn.max = JUNCD_DISP32_LEN; |
| 6477 | csky_insn.isize = 2; |
| 6478 | } |
| 6479 | else |
| 6480 | { |
| 6481 | /* Generate relax with condition. */ |
| 6482 | csky_insn.output = frag_var (rs_machine_dependent, |
| 6483 | UNCD_DISP16_LEN, |
| 6484 | UNCD_DISP10_LEN, |
| 6485 | UNCD_DISP10, |
| 6486 | csky_insn.e1.X_add_symbol, |
| 6487 | csky_insn.e1.X_add_number, |
| 6488 | 0); |
| 6489 | csky_insn.isize = 2; |
| 6490 | csky_insn.max = UNCD_DISP16_LEN; |
| 6491 | csky_insn.inst = csky_insn.opcode->op16[0].opcode; |
| 6492 | |
| 6493 | } |
| 6494 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6495 | return TRUE; |
| 6496 | } |
| 6497 | |
| 6498 | #define SIZE_V2_MOVI16(x) ((addressT)x <= 0xff) |
| 6499 | #define SIZE_V2_MOVI32(x) ((addressT)x <= 0xffff) |
| 6500 | #define SIZE_V2_MOVIH(x) ((addressT)x <= 0xffffffff && (((addressT)x & 0xffff) == 0)) |
| 6501 | |
| 6502 | bfd_boolean |
| 6503 | v2_work_lrw (void) |
| 6504 | { |
| 6505 | int reg = csky_insn.val[0]; |
| 6506 | int output_literal = csky_insn.val[1]; |
| 6507 | int is_done = 0; |
| 6508 | |
| 6509 | /* If the second operand is O_constant, We can use movi/movih |
| 6510 | instead of lrw. */ |
| 6511 | if (csky_insn.e1.X_op == O_constant) |
| 6512 | { |
| 6513 | /* 801 only has movi16. */ |
| 6514 | if (SIZE_V2_MOVI16 (csky_insn.e1.X_add_number) && reg < 8) |
| 6515 | { |
| 6516 | /* movi16 instead. */ |
| 6517 | csky_insn.output = frag_more (2); |
| 6518 | csky_insn.inst = (CSKYV2_INST_MOVI16 | (reg << 8) |
| 6519 | | (csky_insn.e1.X_add_number)); |
| 6520 | csky_insn.isize = 2; |
| 6521 | is_done = 1; |
| 6522 | } |
| 6523 | else if (SIZE_V2_MOVI32 (csky_insn.e1.X_add_number) |
| 6524 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6525 | { |
| 6526 | /* movi32 instead. */ |
| 6527 | csky_insn.output = frag_more (4); |
| 6528 | csky_insn.inst = (CSKYV2_INST_MOVI32 | (reg << 16) |
| 6529 | | (csky_insn.e1.X_add_number)); |
| 6530 | csky_insn.isize = 4; |
| 6531 | is_done = 1; |
| 6532 | } |
| 6533 | else if (SIZE_V2_MOVIH (csky_insn.e1.X_add_number) |
| 6534 | && !IS_CSKY_ARCH_801 (mach_flag)) |
| 6535 | { |
| 6536 | /* movih instead. */ |
| 6537 | csky_insn.output = frag_more (4); |
| 6538 | csky_insn.inst = (CSKYV2_INST_MOVIH | (reg << 16) |
| 6539 | | ((csky_insn.e1.X_add_number >> 16) & 0xffff)); |
| 6540 | csky_insn.isize = 4; |
| 6541 | is_done = 1; |
| 6542 | } |
| 6543 | } |
| 6544 | |
| 6545 | if (is_done) |
| 6546 | { |
| 6547 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6548 | return TRUE; |
| 6549 | } |
| 6550 | |
| 6551 | if (output_literal) |
| 6552 | { |
| 6553 | int n = enter_literal (&csky_insn.e1, 0, 0, 0); |
| 6554 | /* Create a reference to pool entry. */ |
| 6555 | csky_insn.e1.X_op = O_symbol; |
| 6556 | csky_insn.e1.X_add_symbol = poolsym; |
| 6557 | csky_insn.e1.X_add_number = n << 2; |
| 6558 | } |
| 6559 | /* If 16bit force. */ |
| 6560 | if (csky_insn.flag_force == INSN_OPCODE16F) |
| 6561 | { |
| 6562 | /* Generate fixup. */ |
| 6563 | if (reg > 7) |
| 6564 | { |
| 6565 | csky_show_error (ERROR_UNDEFINE, 0, |
| 6566 | (void *)"The register is out of range.", NULL); |
| 6567 | return FALSE; |
| 6568 | } |
| 6569 | csky_insn.isize = 2; |
| 6570 | csky_insn.output = frag_more (2); |
| 6571 | |
| 6572 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 6573 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 6574 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 6575 | { |
| 6576 | literal_insn_offset->tls_addend.frag = frag_now; |
| 6577 | literal_insn_offset->tls_addend.offset |
| 6578 | = csky_insn.output - frag_now->fr_literal; |
| 6579 | } |
| 6580 | csky_insn.inst = csky_insn.opcode->op16[0].opcode | (reg << 5); |
| 6581 | csky_insn.max = 4; |
| 6582 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6583 | 2, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM7BY4); |
| 6584 | } |
| 6585 | else if (csky_insn.flag_force == INSN_OPCODE32F) |
| 6586 | { |
| 6587 | csky_insn.isize = 4; |
| 6588 | csky_insn.output = frag_more (4); |
| 6589 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 6590 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 6591 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 6592 | { |
| 6593 | literal_insn_offset->tls_addend.frag = frag_now; |
| 6594 | literal_insn_offset->tls_addend.offset |
| 6595 | = csky_insn.output - frag_now->fr_literal; |
| 6596 | } |
| 6597 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 16); |
| 6598 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6599 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM16BY4); |
| 6600 | } |
| 6601 | else if (!is_done) |
| 6602 | { |
| 6603 | if (reg < 8) |
| 6604 | { |
| 6605 | csky_insn.isize = 2; |
| 6606 | |
| 6607 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 6608 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 6609 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 6610 | literal_insn_offset->tls_addend.frag = frag_now; |
| 6611 | |
| 6612 | csky_insn.output = frag_var (rs_machine_dependent, |
| 6613 | LRW_DISP16_LEN, |
| 6614 | LRW_DISP7_LEN, |
| 6615 | (do_extend_lrw |
| 6616 | ? LRW2_DISP8 : LRW_DISP7), |
| 6617 | csky_insn.e1.X_add_symbol, |
| 6618 | csky_insn.e1.X_add_number, 0); |
| 6619 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 6620 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 6621 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 6622 | { |
| 6623 | if (literal_insn_offset->tls_addend.frag->fr_next != frag_now) |
| 6624 | literal_insn_offset->tls_addend.frag |
| 6625 | = literal_insn_offset->tls_addend.frag->fr_next; |
| 6626 | literal_insn_offset->tls_addend.offset |
| 6627 | = (csky_insn.output |
| 6628 | - literal_insn_offset->tls_addend.frag->fr_literal); |
| 6629 | } |
| 6630 | csky_insn.inst = csky_insn.opcode->op16[0].opcode | (reg << 5); |
| 6631 | csky_insn.max = LRW_DISP16_LEN; |
| 6632 | csky_insn.isize = 2; |
| 6633 | } |
| 6634 | else |
| 6635 | { |
| 6636 | csky_insn.isize = 4; |
| 6637 | csky_insn.output = frag_more (4); |
| 6638 | if (insn_reloc == BFD_RELOC_CKCORE_TLS_GD32 |
| 6639 | || insn_reloc == BFD_RELOC_CKCORE_TLS_LDM32 |
| 6640 | || insn_reloc == BFD_RELOC_CKCORE_TLS_IE32) |
| 6641 | { |
| 6642 | literal_insn_offset->tls_addend.frag = frag_now; |
| 6643 | literal_insn_offset->tls_addend.offset |
| 6644 | = csky_insn.output - frag_now->fr_literal; |
| 6645 | } |
| 6646 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 16); |
| 6647 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6648 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM16BY4); |
| 6649 | } |
| 6650 | } |
| 6651 | |
| 6652 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6653 | return TRUE; |
| 6654 | } |
| 6655 | |
| 6656 | bfd_boolean |
| 6657 | v2_work_lrsrsw (void) |
| 6658 | { |
| 6659 | int reg = csky_insn.val[0]; |
| 6660 | csky_insn.output = frag_more (4); |
| 6661 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 21); |
| 6662 | csky_insn.isize = 4; |
| 6663 | |
| 6664 | switch (insn_reloc) |
| 6665 | { |
| 6666 | case BFD_RELOC_CKCORE_GOT32: |
| 6667 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6668 | 4, &csky_insn.e1, 0, BFD_RELOC_CKCORE_GOT_IMM18BY4); |
| 6669 | break; |
| 6670 | case BFD_RELOC_CKCORE_PLT32: |
| 6671 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6672 | 4, &csky_insn.e1, 0, BFD_RELOC_CKCORE_PLT_IMM18BY4); |
| 6673 | break; |
| 6674 | default: |
| 6675 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6676 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_DOFFSET_IMM18BY4); |
| 6677 | break; |
| 6678 | } |
| 6679 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6680 | return TRUE; |
| 6681 | } |
| 6682 | |
| 6683 | bfd_boolean |
| 6684 | v2_work_jbsr (void) |
| 6685 | { |
| 6686 | if (do_force2bsr |
| 6687 | || IS_CSKY_ARCH_801 (mach_flag) |
| 6688 | || IS_CSKY_ARCH_802 (mach_flag)) |
| 6689 | { |
| 6690 | csky_insn.output = frag_more (4); |
| 6691 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6692 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM26BY2); |
| 6693 | csky_insn.isize = 4; |
| 6694 | csky_insn.inst = CSKYV2_INST_BSR32; |
| 6695 | } |
| 6696 | else |
| 6697 | { |
| 6698 | int n = enter_literal (&csky_insn.e1, 0, 0, 0); |
| 6699 | csky_insn.output = frag_more (4); |
| 6700 | csky_insn.e1.X_op = O_symbol; |
| 6701 | csky_insn.e1.X_add_symbol = poolsym; |
| 6702 | csky_insn.e1.X_add_number = n << 2; |
| 6703 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6704 | 4, &csky_insn.e1, 1, BFD_RELOC_CKCORE_PCREL_IMM16BY4); |
| 6705 | if (do_jsri2bsr || IS_CSKY_ARCH_810 (mach_flag)) |
| 6706 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6707 | 4, |
| 6708 | &(litpool + (csky_insn.e1.X_add_number >> 2))->e, |
| 6709 | 1, |
| 6710 | BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2); |
| 6711 | csky_insn.inst = CSKYV2_INST_JSRI32; |
| 6712 | csky_insn.isize = 4; |
| 6713 | if (IS_CSKY_ARCH_810 (mach_flag)) |
| 6714 | { |
| 6715 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6716 | csky_insn.output = frag_more (4); |
| 6717 | dwarf2_emit_insn (0); |
| 6718 | /* Insert "mov r0, r0". */ |
| 6719 | csky_insn.inst = CSKYV2_INST_MOV_R0_R0; |
| 6720 | csky_insn.max = 8; |
| 6721 | } |
| 6722 | } |
| 6723 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6724 | |
| 6725 | return TRUE; |
| 6726 | } |
| 6727 | |
| 6728 | bfd_boolean |
| 6729 | v2_work_jsri (void) |
| 6730 | { |
| 6731 | /* dump literal. */ |
| 6732 | int n = enter_literal (&csky_insn.e1, 1, 0, 0); |
| 6733 | csky_insn.e1.X_op = O_symbol; |
| 6734 | csky_insn.e1.X_add_symbol = poolsym; |
| 6735 | csky_insn.e1.X_add_number = n << 2; |
| 6736 | |
| 6737 | /* Generate relax or reloc if necessary. */ |
| 6738 | csky_generate_frags (); |
| 6739 | /* Generate the insn by mask. */ |
| 6740 | csky_generate_insn (); |
| 6741 | /* Write inst to frag. */ |
| 6742 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6743 | /* Control 810 not to generate jsri. */ |
| 6744 | if (IS_CSKY_ARCH_810 (mach_flag)) |
| 6745 | { |
| 6746 | /* Look at adding the R_PCREL_JSRIMM26BY2. |
| 6747 | For 'jbsr .L1', this reloc type's symbol |
| 6748 | is bound to '.L1', isn't bound to literal pool. */ |
| 6749 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6750 | 4, &(litpool + (csky_insn.e1.X_add_number >> 2))->e, 1, |
| 6751 | BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2); |
| 6752 | csky_insn.output = frag_more (4); |
| 6753 | dwarf2_emit_insn (0); |
| 6754 | /* The opcode of "mov32 r0,r0". */ |
| 6755 | csky_insn.inst = CSKYV2_INST_MOV_R0_R0; |
| 6756 | /* The effect of this value is to check literal. */ |
| 6757 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6758 | csky_insn.max = 8; |
| 6759 | } |
| 6760 | return TRUE; |
| 6761 | } |
| 6762 | |
| 6763 | bfd_boolean |
| 6764 | v2_work_movih (void) |
| 6765 | { |
| 6766 | int rz = csky_insn.val[0]; |
| 6767 | csky_insn.output = frag_more (4); |
| 6768 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (rz << 16); |
| 6769 | if (csky_insn.e1.X_op == O_constant) |
| 6770 | { |
| 6771 | if (csky_insn.e1.X_unsigned == 1 && csky_insn.e1.X_add_number > 0xffff) |
| 6772 | { |
| 6773 | csky_show_error (ERROR_IMM_OVERFLOW, 2, NULL, NULL); |
| 6774 | return FALSE; |
| 6775 | } |
| 6776 | else if (csky_insn.e1.X_unsigned == 0 && csky_insn.e1.X_add_number < 0) |
| 6777 | { |
| 6778 | csky_show_error (ERROR_IMM_OVERFLOW, 2, NULL, NULL); |
| 6779 | return FALSE; |
| 6780 | } |
| 6781 | else |
| 6782 | csky_insn.inst |= (csky_insn.e1.X_add_number & 0xffff); |
| 6783 | } |
| 6784 | else if (csky_insn.e1.X_op == O_right_shift |
| 6785 | || (csky_insn.e1.X_op == O_symbol && insn_reloc != BFD_RELOC_NONE)) |
| 6786 | { |
| 6787 | if (csky_insn.e1.X_op_symbol != 0 |
| 6788 | && symbol_constant_p (csky_insn.e1.X_op_symbol) |
| 6789 | && S_GET_SEGMENT (csky_insn.e1.X_op_symbol) == absolute_section |
| 6790 | && 16 == S_GET_VALUE (csky_insn.e1.X_op_symbol)) |
| 6791 | { |
| 6792 | csky_insn.e1.X_op = O_symbol; |
| 6793 | if (insn_reloc == BFD_RELOC_CKCORE_GOT32) |
| 6794 | insn_reloc = BFD_RELOC_CKCORE_GOT_HI16; |
| 6795 | else if (insn_reloc == BFD_RELOC_CKCORE_PLT32) |
| 6796 | insn_reloc = BFD_RELOC_CKCORE_PLT_HI16; |
| 6797 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTPC) |
| 6798 | insn_reloc = BFD_RELOC_CKCORE_GOTPC_HI16; |
| 6799 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTOFF) |
| 6800 | insn_reloc = BFD_RELOC_CKCORE_GOTOFF_HI16; |
| 6801 | else |
| 6802 | insn_reloc = BFD_RELOC_CKCORE_ADDR_HI16; |
| 6803 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6804 | 4, &csky_insn.e1, 0, insn_reloc); |
| 6805 | } |
| 6806 | else |
| 6807 | { |
| 6808 | void *arg = (void *)"the second operand must be \"SYMBOL >> 16\""; |
| 6809 | csky_show_error (ERROR_UNDEFINE, 0, arg, NULL); |
| 6810 | return FALSE; |
| 6811 | } |
| 6812 | } |
| 6813 | csky_insn.isize = 4; |
| 6814 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6815 | |
| 6816 | return TRUE; |
| 6817 | } |
| 6818 | |
| 6819 | bfd_boolean |
| 6820 | v2_work_ori (void) |
| 6821 | { |
| 6822 | int rz = csky_insn.val[0]; |
| 6823 | int rx = csky_insn.val[1]; |
| 6824 | csky_insn.output = frag_more (4); |
| 6825 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (rz << 21) | (rx << 16); |
| 6826 | if (csky_insn.e1.X_op == O_constant) |
| 6827 | { |
| 6828 | if (csky_insn.e1.X_add_number <= 0xffff |
| 6829 | && csky_insn.e1.X_add_number >= 0) |
| 6830 | csky_insn.inst |= csky_insn.e1.X_add_number; |
| 6831 | else |
| 6832 | { |
| 6833 | csky_show_error (ERROR_IMM_OVERFLOW, 3, NULL, NULL); |
| 6834 | return FALSE; |
| 6835 | } |
| 6836 | } |
| 6837 | else if (csky_insn.e1.X_op == O_bit_and) |
| 6838 | { |
| 6839 | if (symbol_constant_p (csky_insn.e1.X_op_symbol) |
| 6840 | && S_GET_SEGMENT (csky_insn.e1.X_op_symbol) == absolute_section |
| 6841 | && 0xffff == S_GET_VALUE (csky_insn.e1.X_op_symbol)) |
| 6842 | { |
| 6843 | csky_insn.e1.X_op = O_symbol; |
| 6844 | if (insn_reloc == BFD_RELOC_CKCORE_GOT32) |
| 6845 | insn_reloc = BFD_RELOC_CKCORE_GOT_LO16; |
| 6846 | else if (insn_reloc == BFD_RELOC_CKCORE_PLT32) |
| 6847 | insn_reloc = BFD_RELOC_CKCORE_PLT_LO16; |
| 6848 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTPC) |
| 6849 | insn_reloc = BFD_RELOC_CKCORE_GOTPC_LO16; |
| 6850 | else if (insn_reloc == BFD_RELOC_CKCORE_GOTOFF) |
| 6851 | insn_reloc = BFD_RELOC_CKCORE_GOTOFF_LO16; |
| 6852 | else |
| 6853 | insn_reloc = BFD_RELOC_CKCORE_ADDR_LO16; |
| 6854 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6855 | 4, &csky_insn.e1, 0, insn_reloc); |
| 6856 | } |
| 6857 | else |
| 6858 | { |
| 6859 | void *arg = (void *)"the third operand must be \"SYMBOL & 0xffff\""; |
| 6860 | csky_show_error (ERROR_UNDEFINE, 0, arg, NULL); |
| 6861 | return FALSE; |
| 6862 | } |
| 6863 | } |
| 6864 | csky_insn.isize = 4; |
| 6865 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6866 | return TRUE; |
| 6867 | } |
| 6868 | |
| 6869 | /* Helper function to encode a single/double floating point constant |
| 6870 | into the instruction word for fmovis and fmovid instructions. |
| 6871 | The constant is in its IEEE single/double precision representation |
| 6872 | and is repacked into the internal 13-bit representation for these |
| 6873 | instructions with a diagnostic for overflow. Note that there is no |
| 6874 | rounding when converting to the smaller format, just an error if there |
| 6875 | is excess precision or the number is too small/large to be represented. */ |
| 6876 | |
| 6877 | bfd_boolean |
| 6878 | float_work_fmovi (void) |
| 6879 | { |
| 6880 | int rx = csky_insn.val[0]; |
| 6881 | |
| 6882 | /* We already converted the float constant to the internal 13-bit |
| 6883 | representation so we just need to OR it in here. */ |
| 6884 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | rx; |
| 6885 | csky_insn.inst |= (uint32_t) csky_insn.e1.X_add_number; |
| 6886 | |
| 6887 | csky_insn.output = frag_more (4); |
| 6888 | csky_insn.isize = 4; |
| 6889 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6890 | return TRUE; |
| 6891 | } |
| 6892 | |
| 6893 | bfd_boolean |
| 6894 | dsp_work_bloop (void) |
| 6895 | { |
| 6896 | int reg = csky_insn.val[0]; |
| 6897 | csky_insn.output = frag_more (4); |
| 6898 | csky_insn.inst = csky_insn.opcode->op32[0].opcode | (reg << 16); |
| 6899 | csky_insn.isize = 4; |
| 6900 | |
| 6901 | if (csky_insn.e1.X_op == O_symbol |
| 6902 | && csky_insn.e2.X_op == O_symbol) |
| 6903 | { |
| 6904 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6905 | 4, &csky_insn.e1, 1, |
| 6906 | BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4); |
| 6907 | fix_new_exp (frag_now, csky_insn.output - frag_now->fr_literal, |
| 6908 | 4, &csky_insn.e2, 1, |
| 6909 | BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4); |
| 6910 | } |
| 6911 | |
| 6912 | csky_write_insn (csky_insn.output, csky_insn.inst, csky_insn.isize); |
| 6913 | return TRUE; |
| 6914 | } |
| 6915 | |
| 6916 | |
| 6917 | /* The following are for assembler directive handling. */ |
| 6918 | |
| 6919 | /* Helper function to adjust constant pool counts when we emit a |
| 6920 | data directive in the text section. FUNC is one of the standard |
| 6921 | gas functions to handle these directives, like "stringer" for the |
| 6922 | .string directive, and ARG is the argument to FUNC. csky_pool_count |
| 6923 | essentially wraps the call with the constant pool magic. */ |
| 6924 | |
| 6925 | static void |
| 6926 | csky_pool_count (void (*func) (int), int arg) |
| 6927 | { |
| 6928 | const fragS *curr_frag = frag_now; |
| 6929 | offsetT added = -frag_now_fix_octets (); |
| 6930 | |
| 6931 | (*func) (arg); |
| 6932 | |
| 6933 | while (curr_frag != frag_now) |
| 6934 | { |
| 6935 | added += curr_frag->fr_fix; |
| 6936 | curr_frag = curr_frag->fr_next; |
| 6937 | } |
| 6938 | |
| 6939 | added += frag_now_fix_octets (); |
| 6940 | poolspan += added; |
| 6941 | } |
| 6942 | |
| 6943 | /* Support the .literals directive. */ |
| 6944 | static void |
| 6945 | csky_s_literals (int ignore ATTRIBUTE_UNUSED) |
| 6946 | { |
| 6947 | dump_literals (0); |
| 6948 | demand_empty_rest_of_line (); |
| 6949 | } |
| 6950 | |
| 6951 | /* Support the .string, etc directives. */ |
| 6952 | static void |
| 6953 | csky_stringer (int append_zero) |
| 6954 | { |
| 6955 | if (now_seg == text_section) |
| 6956 | csky_pool_count (stringer, append_zero); |
| 6957 | else |
| 6958 | stringer (append_zero); |
| 6959 | |
| 6960 | /* We call check_literals here in case a large number of strings are |
| 6961 | being placed into the text section with a sequence of stringer |
| 6962 | directives. In theory we could be upsetting something if these |
| 6963 | strings are actually in an indexed table instead of referenced by |
| 6964 | individual labels. Let us hope that that never happens. */ |
| 6965 | check_literals (2, 0); |
| 6966 | } |
| 6967 | |
| 6968 | /* Support integer-mode constructors like .word, .byte, etc. */ |
| 6969 | |
| 6970 | static void |
| 6971 | csky_cons (int nbytes) |
| 6972 | { |
| 6973 | mapping_state (MAP_DATA); |
| 6974 | if (nbytes == 4) /* @GOT. */ |
| 6975 | { |
| 6976 | do |
| 6977 | { |
| 6978 | bfd_reloc_code_real_type reloc; |
| 6979 | expressionS exp; |
| 6980 | |
| 6981 | reloc = BFD_RELOC_NONE; |
| 6982 | expression (&exp); |
| 6983 | lex_got (&reloc, NULL); |
| 6984 | |
| 6985 | if (exp.X_op == O_symbol && reloc != BFD_RELOC_NONE) |
| 6986 | { |
| 6987 | reloc_howto_type *howto |
| 6988 | = bfd_reloc_type_lookup (stdoutput, reloc); |
| 6989 | int size = bfd_get_reloc_size (howto); |
| 6990 | |
| 6991 | if (size > nbytes) |
| 6992 | as_bad (ngettext ("%s relocations do not fit in %d byte", |
| 6993 | "%s relocations do not fit in %d bytes", |
| 6994 | nbytes), |
| 6995 | howto->name, nbytes); |
| 6996 | else |
| 6997 | { |
| 6998 | register char *p = frag_more ((int) nbytes); |
| 6999 | int offset = nbytes - size; |
| 7000 | |
| 7001 | fix_new_exp (frag_now, |
| 7002 | p - frag_now->fr_literal + offset, |
| 7003 | size, &exp, 0, reloc); |
| 7004 | } |
| 7005 | } |
| 7006 | else |
| 7007 | emit_expr (&exp, (unsigned int) nbytes); |
| 7008 | if (now_seg == text_section) |
| 7009 | poolspan += nbytes; |
| 7010 | } |
| 7011 | while (*input_line_pointer++ == ','); |
| 7012 | |
| 7013 | /* Put terminator back into stream. */ |
| 7014 | input_line_pointer --; |
| 7015 | demand_empty_rest_of_line (); |
| 7016 | |
| 7017 | return; |
| 7018 | } |
| 7019 | |
| 7020 | if (now_seg == text_section) |
| 7021 | csky_pool_count (cons, nbytes); |
| 7022 | else |
| 7023 | cons (nbytes); |
| 7024 | |
| 7025 | /* In theory we ought to call check_literals (2,0) here in case |
| 7026 | we need to dump the literal table. We cannot do this however, |
| 7027 | as the directives that we are intercepting may be being used |
| 7028 | to build a switch table, and we must not interfere with its |
| 7029 | contents. Instead we cross our fingers and pray... */ |
| 7030 | } |
| 7031 | |
| 7032 | /* Support floating-mode constant directives like .float and .double. */ |
| 7033 | |
| 7034 | static void |
| 7035 | csky_float_cons (int float_type) |
| 7036 | { |
| 7037 | mapping_state (MAP_DATA); |
| 7038 | if (now_seg == text_section) |
| 7039 | csky_pool_count (float_cons, float_type); |
| 7040 | else |
| 7041 | float_cons (float_type); |
| 7042 | |
| 7043 | /* See the comment in csky_cons () about calling check_literals. |
| 7044 | It is unlikely that a switch table will be constructed using |
| 7045 | floating point values, but it is still likely that an indexed |
| 7046 | table of floating point constants is being created by these |
| 7047 | directives, so again we must not interfere with their placement. */ |
| 7048 | } |
| 7049 | |
| 7050 | /* Support the .fill directive. */ |
| 7051 | |
| 7052 | static void |
| 7053 | csky_fill (int ignore) |
| 7054 | { |
| 7055 | if (now_seg == text_section) |
| 7056 | csky_pool_count (s_fill, ignore); |
| 7057 | else |
| 7058 | s_fill (ignore); |
| 7059 | |
| 7060 | check_literals (2, 0); |
| 7061 | } |
| 7062 | |
| 7063 | /* Handle the section changing pseudo-ops. These call through to the |
| 7064 | normal implementations, but they dump the literal pool first. */ |
| 7065 | |
| 7066 | static void |
| 7067 | csky_s_text (int ignore) |
| 7068 | { |
| 7069 | dump_literals (0); |
| 7070 | |
| 7071 | #ifdef OBJ_ELF |
| 7072 | obj_elf_text (ignore); |
| 7073 | #else |
| 7074 | s_text (ignore); |
| 7075 | #endif |
| 7076 | } |
| 7077 | |
| 7078 | static void |
| 7079 | csky_s_data (int ignore) |
| 7080 | { |
| 7081 | dump_literals (0); |
| 7082 | |
| 7083 | #ifdef OBJ_ELF |
| 7084 | obj_elf_data (ignore); |
| 7085 | #else |
| 7086 | s_data (ignore); |
| 7087 | #endif |
| 7088 | } |
| 7089 | |
| 7090 | static void |
| 7091 | csky_s_section (int ignore) |
| 7092 | { |
| 7093 | /* Scan forwards to find the name of the section. If the section |
| 7094 | being switched to is ".line" then this is a DWARF1 debug section |
| 7095 | which is arbitrarily placed inside generated code. In this case |
| 7096 | do not dump the literal pool because it is a) inefficient and |
| 7097 | b) would require the generation of extra code to jump around the |
| 7098 | pool. */ |
| 7099 | char * ilp = input_line_pointer; |
| 7100 | |
| 7101 | while (*ilp != 0 && ISSPACE (*ilp)) |
| 7102 | ++ ilp; |
| 7103 | |
| 7104 | if (strncmp (ilp, ".line", 5) == 0 |
| 7105 | && (ISSPACE (ilp[5]) || *ilp == '\n' || *ilp == '\r')) |
| 7106 | ; |
| 7107 | else |
| 7108 | dump_literals (0); |
| 7109 | |
| 7110 | #ifdef OBJ_ELF |
| 7111 | obj_elf_section (ignore); |
| 7112 | #endif |
| 7113 | #ifdef OBJ_COFF |
| 7114 | obj_coff_section (ignore); |
| 7115 | #endif |
| 7116 | } |
| 7117 | |
| 7118 | static void |
| 7119 | csky_s_bss (int needs_align) |
| 7120 | { |
| 7121 | dump_literals (0); |
| 7122 | s_lcomm_bytes (needs_align); |
| 7123 | } |
| 7124 | |
| 7125 | #ifdef OBJ_ELF |
| 7126 | static void |
| 7127 | csky_s_comm (int needs_align) |
| 7128 | { |
| 7129 | dump_literals (0); |
| 7130 | obj_elf_common (needs_align); |
| 7131 | } |
| 7132 | #endif |
| 7133 | |
| 7134 | /* Handle the .no_literal_dump directive. */ |
| 7135 | |
| 7136 | static void |
| 7137 | csky_noliteraldump (int ignore ATTRIBUTE_UNUSED) |
| 7138 | { |
| 7139 | do_noliteraldump = 1; |
| 7140 | int insn_num = get_absolute_expression (); |
| 7141 | /* The insn after '.no_literal_dump insn_num' is insn1, |
| 7142 | Don't dump literal pool between insn1 and insn(insn_num+1) |
| 7143 | The insn cannot be the insn generate literal, like lrw & jsri. */ |
| 7144 | check_literals (0, insn_num * 2); |
| 7145 | } |
| 7146 | |
| 7147 | /* Handle the .align directive. |
| 7148 | We must check literals before doing alignment. For example, if |
| 7149 | '.align n', add (2^n-1) to poolspan and check literals. */ |
| 7150 | |
| 7151 | static void |
| 7152 | csky_s_align_ptwo (int arg) |
| 7153 | { |
| 7154 | /* Get the .align's first absolute number. */ |
| 7155 | char * temp_pointer = input_line_pointer; |
| 7156 | int align = get_absolute_expression (); |
| 7157 | check_literals (0, (1 << align) - 1); |
| 7158 | input_line_pointer = temp_pointer; |
| 7159 | |
| 7160 | /* Do alignment. */ |
| 7161 | s_align_ptwo (arg); |
| 7162 | } |
| 7163 | |
| 7164 | /* Handle the .stack_size directive. */ |
| 7165 | |
| 7166 | static void |
| 7167 | csky_stack_size (int arg ATTRIBUTE_UNUSED) |
| 7168 | { |
| 7169 | expressionS exp; |
| 7170 | stack_size_entry *sse |
| 7171 | = (stack_size_entry *) xcalloc (1, sizeof (stack_size_entry)); |
| 7172 | |
| 7173 | expression (&exp); |
| 7174 | if (exp.X_op == O_symbol) |
| 7175 | sse->function = exp.X_add_symbol; |
| 7176 | else |
| 7177 | { |
| 7178 | as_bad (_("the first operand must be a symbol")); |
| 7179 | ignore_rest_of_line (); |
| 7180 | free (sse); |
| 7181 | return; |
| 7182 | } |
| 7183 | |
| 7184 | SKIP_WHITESPACE (); |
| 7185 | if (*input_line_pointer != ',') |
| 7186 | { |
| 7187 | as_bad (_("missing stack size")); |
| 7188 | ignore_rest_of_line (); |
| 7189 | free (sse); |
| 7190 | return; |
| 7191 | } |
| 7192 | |
| 7193 | ++input_line_pointer; |
| 7194 | expression (&exp); |
| 7195 | if (exp.X_op == O_constant) |
| 7196 | { |
| 7197 | if (exp.X_add_number < 0 || exp.X_add_number > (offsetT)0xffffffff) |
| 7198 | { |
| 7199 | |
| 7200 | as_bad (_("value not in range [0, 0xffffffff]")); |
| 7201 | ignore_rest_of_line (); |
| 7202 | free (sse); |
| 7203 | return; |
| 7204 | } |
| 7205 | else |
| 7206 | sse->stack_size = exp.X_add_number; |
| 7207 | } |
| 7208 | else |
| 7209 | { |
| 7210 | as_bad (_("operand must be a constant")); |
| 7211 | ignore_rest_of_line (); |
| 7212 | free (sse); |
| 7213 | return; |
| 7214 | } |
| 7215 | |
| 7216 | if (*last_stack_size_data != NULL) |
| 7217 | last_stack_size_data = &((*last_stack_size_data)->next); |
| 7218 | |
| 7219 | *last_stack_size_data = sse; |
| 7220 | } |
| 7221 | |
| 7222 | /* This table describes all the machine specific pseudo-ops the assembler |
| 7223 | has to support. The fields are: |
| 7224 | pseudo-op name without dot |
| 7225 | function to call to execute this pseudo-op |
| 7226 | Integer arg to pass to the function. */ |
| 7227 | |
| 7228 | const pseudo_typeS md_pseudo_table[] = |
| 7229 | { |
| 7230 | { "export", s_globl, 0 }, |
| 7231 | { "import", s_ignore, 0 }, |
| 7232 | { "literals", csky_s_literals, 0 }, |
| 7233 | { "page", listing_eject, 0 }, |
| 7234 | |
| 7235 | /* The following are to intercept the placement of data into the text |
| 7236 | section (eg addresses for a switch table), so that the space they |
| 7237 | occupy can be taken into account when deciding whether or not to |
| 7238 | dump the current literal pool. |
| 7239 | XXX - currently we do not cope with the .space and .dcb.d directives. */ |
| 7240 | { "ascii", csky_stringer, 8 + 0 }, |
| 7241 | { "asciz", csky_stringer, 8 + 1 }, |
| 7242 | { "byte", csky_cons, 1 }, |
| 7243 | { "dc", csky_cons, 2 }, |
| 7244 | { "dc.b", csky_cons, 1 }, |
| 7245 | { "dc.d", csky_float_cons, 'd'}, |
| 7246 | { "dc.l", csky_cons, 4 }, |
| 7247 | { "dc.s", csky_float_cons, 'f'}, |
| 7248 | { "dc.w", csky_cons, 2 }, |
| 7249 | { "dc.x", csky_float_cons, 'x'}, |
| 7250 | { "double", csky_float_cons, 'd'}, |
| 7251 | { "float", csky_float_cons, 'f'}, |
| 7252 | { "hword", csky_cons, 2 }, |
| 7253 | { "int", csky_cons, 4 }, |
| 7254 | { "long", csky_cons, 4 }, |
| 7255 | { "octa", csky_cons, 16 }, |
| 7256 | { "quad", csky_cons, 8 }, |
| 7257 | { "short", csky_cons, 2 }, |
| 7258 | { "single", csky_float_cons, 'f'}, |
| 7259 | { "string", csky_stringer, 8 + 1 }, |
| 7260 | { "word", csky_cons, 4 }, |
| 7261 | { "fill", csky_fill, 0 }, |
| 7262 | |
| 7263 | /* Allow for the effect of section changes. */ |
| 7264 | { "text", csky_s_text, 0 }, |
| 7265 | { "data", csky_s_data, 0 }, |
| 7266 | { "bss", csky_s_bss, 1 }, |
| 7267 | #ifdef OBJ_ELF |
| 7268 | { "comm", csky_s_comm, 0 }, |
| 7269 | #endif |
| 7270 | { "section", csky_s_section, 0 }, |
| 7271 | { "section.s", csky_s_section, 0 }, |
| 7272 | { "sect", csky_s_section, 0 }, |
| 7273 | { "sect.s", csky_s_section, 0 }, |
| 7274 | /* When ".no_literal_dump N" is in front of insn1, |
| 7275 | and instruction sequence is: |
| 7276 | insn1 |
| 7277 | insn2 |
| 7278 | ...... |
| 7279 | insnN+1 |
| 7280 | it means literals will not dump between insn1 and insnN+1 |
| 7281 | The insn cannot itself generate literal, like lrw & jsri. */ |
| 7282 | { "no_literal_dump", csky_noliteraldump, 0 }, |
| 7283 | { "align", csky_s_align_ptwo, 0 }, |
| 7284 | { "stack_size", csky_stack_size, 0 }, |
| 7285 | {0, 0, 0} |
| 7286 | }; |
| 7287 | |
| 7288 | /* Implement tc_cfi_frame_initial_instructions. */ |
| 7289 | |
| 7290 | void |
| 7291 | csky_cfi_frame_initial_instructions (void) |
| 7292 | { |
| 7293 | int sp_reg = IS_CSKY_V1 (mach_flag) ? 0 : 14; |
| 7294 | cfi_add_CFA_def_cfa_register (sp_reg); |
| 7295 | } |
| 7296 | |
| 7297 | /* Implement tc_regname_to_dw2regnum. */ |
| 7298 | |
| 7299 | int |
| 7300 | tc_csky_regname_to_dw2regnum (char *regname) |
| 7301 | { |
| 7302 | int reg_num = -1; |
| 7303 | int len; |
| 7304 | |
| 7305 | /* FIXME the reg should be parsed according to |
| 7306 | the abi version. */ |
| 7307 | reg_num = csky_get_reg_val (regname, &len); |
| 7308 | return reg_num; |
| 7309 | } |