2 Copyright (C) 1988-2022 Free Software Foundation, Inc.
3 Contributed by C-SKY Microsystems and Mentor Graphics.
5 This file is part of the GNU opcodes library.
7 This library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 It is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
27 #include "disassemble.h"
29 #include "opcode/csky.h"
30 #include "libiberty.h"
32 #include "floatformat.h"
34 #define CSKY_INST_TYPE unsigned long
35 #define HAS_SUB_OPERAND (unsigned int)0xffffffff
36 #define CSKY_DEFAULT_ISA 0xffffffff
46 /* Mem to disassemble. */
48 /* Disassemble info. */
49 disassemble_info *info;
50 /* Opcode information. */
51 struct csky_opcode_info const *opinfo;
53 /* The value of operand to show. */
55 /* Whether to look up/print a symbol name. */
56 int need_output_symbol;
60 enum sym_type last_type;
62 bfd_vma last_map_addr = 0;
65 /* Only for objdump tool. */
66 #define INIT_MACH_FLAG 0xffffffff
67 #define BINARY_MACH_FLAG 0x0
69 static unsigned int mach_flag = INIT_MACH_FLAG;
72 print_insn_data (bfd_vma pc ATTRIBUTE_UNUSED,
73 struct disassemble_info *info,
76 switch (info->bytes_per_chunk)
79 info->fprintf_func (info->stream, ".byte\t0x%02lx", given);
82 info->fprintf_func (info->stream, ".short\t0x%04lx", given);
85 info->fprintf_func (info->stream, ".long\t0x%08lx", given);
93 get_sym_code_type (struct disassemble_info *info,
95 enum sym_type *sym_type)
98 name = bfd_asymbol_name (info->symtab[n]);
99 if (name[0] == '$' && (name[1] == 't' || name[1] == 'd')
100 && (name[2] == 0 || name[2] == '.'))
102 *sym_type = ((name[1] == 't') ? CUR_TEXT : CUR_DATA);
109 csky_get_operand_mask (struct operand const *oprnd)
112 if (oprnd->mask == HAS_SUB_OPERAND)
114 struct soperand *sop = (struct soperand *)oprnd;
115 mask |= csky_get_operand_mask (&sop->subs[0]);
116 mask |= csky_get_operand_mask (&sop->subs[1]);
123 csky_get_mask (struct csky_opcode_info const *pinfo)
128 if (pinfo->operand_num == -1)
129 mask |= csky_get_operand_mask (&pinfo->oprnd.oprnds[i]);
131 for (; i < pinfo->operand_num; i++)
132 mask |= csky_get_operand_mask (&pinfo->oprnd.oprnds[i]);
139 csky_chars_to_number (unsigned char * buf, int n)
142 unsigned int val = 0;
144 if (dis_info.info->endian == BFD_ENDIAN_BIG)
145 for (i = 0; i < n; i++)
146 val = val << 8 | buf[i];
148 for (i = n - 1; i >= 0; i--)
149 val = val << 8 | buf[i];
153 static struct csky_opcode const *g_opcodeP;
155 static struct csky_opcode const *
156 csky_find_inst_info (struct csky_opcode_info const **pinfo,
157 CSKY_INST_TYPE inst, int length)
161 struct csky_opcode const *p;
166 if (!(p->isa_flag16 & dis_info.isa)
167 && !(p->isa_flag32 & dis_info.isa))
173 /* Get the opcode mask. */
174 for (i = 0; i < OP_TABLE_NUM; i++)
177 mask = csky_get_mask (&p->op16[i]);
178 if (mask != 0 && (inst & mask) == p->op16[i].opcode)
180 *pinfo = &p->op16[i];
185 else if (length == 4)
187 mask = csky_get_mask (&p->op32[i]);
189 && ((unsigned long)(inst & mask)
190 == (unsigned long)p->op32[i].opcode))
192 *pinfo = &p->op32[i];
204 is_extern_symbol (struct disassemble_info *info, int addr)
206 unsigned int rel_count = 0;
208 if (info->section == NULL)
210 if ((info->section->flags & SEC_RELOC) != 0) /* Fit .o file. */
212 struct reloc_cache_entry *pt = info->section->relocation;
213 for (; rel_count < info->section->reloc_count; rel_count++, pt++)
214 if ((long unsigned int)addr == pt->address)
222 /* Suppress printing of mapping symbols emitted by the assembler to mark
223 the beginning of code and data sequences. */
226 csky_symbol_is_valid (asymbol *sym,
227 struct disassemble_info *info ATTRIBUTE_UNUSED)
233 name = bfd_asymbol_name (sym);
234 return name && *name != '$';
238 csky_get_disassembler (bfd *abfd)
241 const char *sec_name = NULL;
242 if (!abfd || bfd_get_flavour (abfd) != bfd_target_elf_flavour)
243 dis_info.isa = CSKY_DEFAULT_ISA;
246 mach_flag = elf_elfheader (abfd)->e_flags;
248 sec_name = get_elf_backend_data (abfd)->obj_attrs_section;
249 /* Skip any input that hasn't attribute section.
250 This enables to link object files without attribute section with
252 if (bfd_get_section_by_name (abfd, sec_name) != NULL)
254 attr = elf_known_obj_attributes_proc (abfd);
255 dis_info.isa = attr[Tag_CSKY_ISA_EXT_FLAGS].i;
257 dis_info.isa |= attr[Tag_CSKY_ISA_FLAGS].i;
260 dis_info.isa = CSKY_DEFAULT_ISA;
263 return print_insn_csky;
266 /* Parse the string of disassembler options. */
268 parse_csky_dis_options (const char *opts_in)
270 char *opts = xstrdup (opts_in);
272 char *opt_end = opts;
274 for (; opt_end != NULL; opt = opt_end + 1)
276 if ((opt_end = strchr (opt, ',')) != NULL)
278 if (strcmp (opt, "abi-names") == 0)
282 "unrecognized disassembler option: %s", opt);
286 /* Get general register name. */
288 get_gr_name (int regno)
290 return csky_get_general_reg_name (mach_flag, regno, using_abi);
293 /* Get control register name. */
295 get_cr_name (unsigned int regno, int bank)
297 return csky_get_control_reg_name (mach_flag, bank, regno, using_abi);
301 csky_output_operand (char *str, struct operand const *oprnd,
302 CSKY_INST_TYPE inst, int reloc ATTRIBUTE_UNUSED)
308 int mask = oprnd->mask;
312 /* Get operand value with mask. */
314 for (; mask; mask >>= 1, value >>=1)
317 result |= ((value & 0x1) << bit);
323 /* Here is general instructions that have no reloc. */
326 case OPRND_TYPE_CTRLREG:
327 if (IS_CSKY_V1(mach_flag) && ((value & 0x1f) == 0x1f))
329 strcat (str, get_cr_name((value & 0x1f), (value >> 5)));
331 case OPRND_TYPE_DUMMY_REG:
332 mask = dis_info.opinfo->oprnd.oprnds[0].mask;
334 for (; mask; mask >>= 1, value >>=1)
337 result |= ((value & 0x1) << bit);
341 strcat (str, get_gr_name (value));
343 case OPRND_TYPE_GREG0_7:
344 case OPRND_TYPE_GREG0_15:
345 case OPRND_TYPE_GREG16_31:
346 case OPRND_TYPE_REGnsplr:
347 case OPRND_TYPE_AREG:
348 strcat (str, get_gr_name (value));
350 case OPRND_TYPE_CPREG:
351 sprintf (buf, "cpr%d", (int)value);
354 case OPRND_TYPE_FREG:
355 sprintf (buf, "fr%d", (int)value);
358 case OPRND_TYPE_VREG:
359 dis_info.value = value;
360 sprintf (buf, "vr%d", (int)value);
363 case OPRND_TYPE_CPCREG:
364 sprintf (buf, "cpcr%d", (int)value);
367 case OPRND_TYPE_CPIDX:
368 sprintf (buf, "cp%d", (int)value);
371 case OPRND_TYPE_IMM2b_JMPIX:
372 value = (value + 2) << 3;
373 sprintf (buf, "%d", (int)value);
376 case OPRND_TYPE_IMM_LDST:
377 case OPRND_TYPE_IMM_FLDST:
378 value <<= oprnd->shift;
379 sprintf (buf, "0x%x", (unsigned int)value);
382 case OPRND_TYPE_IMM7b_LS2:
383 case OPRND_TYPE_IMM8b_LS2:
384 sprintf (buf, "%d", (int)(value << 2));
388 case OPRND_TYPE_IMM5b_BMASKI:
389 if ((value != 0) && (value > 31 || value < 8))
394 sprintf (buf, "%d", (int)value);
398 case OPRND_TYPE_IMM5b_1_31:
399 if (value > 31 || value < 1)
404 sprintf (buf, "%d", (int)value);
408 case OPRND_TYPE_IMM5b_7_31:
409 if (value > 31 || value < 7)
414 sprintf (buf, "%d", (int)value);
418 case OPRND_TYPE_IMM5b_VSH:
421 value = ((value & 0x1) << 4) | (value >> 1);
422 sprintf (num, "%d", (int)value);
427 case OPRND_TYPE_MSB2SIZE:
428 case OPRND_TYPE_LSB2SIZE:
431 if (oprnd->type == OPRND_TYPE_MSB2SIZE)
435 str[strlen (str) - 2] = '\0';
436 sprintf (buf, "%d, %d", (int)(size + value), (int)value);
441 case OPRND_TYPE_IMM1b:
442 case OPRND_TYPE_IMM2b:
443 case OPRND_TYPE_IMM4b:
444 case OPRND_TYPE_IMM5b:
445 case OPRND_TYPE_IMM5b_LS:
446 case OPRND_TYPE_IMM7b:
447 case OPRND_TYPE_IMM8b:
448 case OPRND_TYPE_IMM12b:
449 case OPRND_TYPE_IMM15b:
450 case OPRND_TYPE_IMM16b:
451 case OPRND_TYPE_IMM16b_MOVIH:
452 case OPRND_TYPE_IMM16b_ORI:
453 sprintf (buf, "%d", (int)value);
457 case OPRND_TYPE_OFF8b:
458 case OPRND_TYPE_OFF16b:
460 unsigned char ibytes[4];
461 int shift = oprnd->shift;
463 unsigned int mem_val;
465 dis_info.info->stop_vma = 0;
467 value = ((dis_info.mem + (value << shift)
468 + ((IS_CSKY_V1 (mach_flag)) ? 2 : 0))
470 status = dis_info.info->read_memory_func (value, ibytes, 4,
474 dis_info.info->memory_error_func (status, dis_info.mem,
478 mem_val = csky_chars_to_number (ibytes, 4);
479 /* Remove [] around literal value to match ABI syntax. */
480 sprintf (buf, "0x%X", mem_val);
482 /* For jmpi/jsri, we'll try to get a symbol for the target. */
483 if (dis_info.info->print_address_func && mem_val != 0)
485 dis_info.value = mem_val;
486 dis_info.need_output_symbol = 1;
490 sprintf (buf, "\t// from address pool at 0x%x",
491 (unsigned int)value);
496 case OPRND_TYPE_BLOOP_OFF4b:
497 case OPRND_TYPE_BLOOP_OFF12b:
498 case OPRND_TYPE_OFF11b:
499 case OPRND_TYPE_OFF16b_LSL1:
500 case OPRND_TYPE_IMM_OFF18b:
501 case OPRND_TYPE_OFF26b:
503 int shift = oprnd->shift;
504 if (value & ((max >> 1) + 1))
506 if (is_extern_symbol (dis_info.info, dis_info.mem))
508 else if (IS_CSKY_V1 (mach_flag))
509 value = dis_info.mem + 2 + (value << shift);
511 value = dis_info.mem + (value << shift);
512 dis_info.need_output_symbol = 1;
513 dis_info.value= value;
514 sprintf (buf, "0x%x", (unsigned int)value);
518 case OPRND_TYPE_CONSTANT:
519 case OPRND_TYPE_FCONSTANT:
521 int shift = oprnd->shift;
527 dis_info.info->stop_vma = 0;
530 if (IS_CSKY_V1 (mach_flag))
531 addr = (dis_info.mem + 2 + value) & 0xfffffffc;
533 addr = (dis_info.mem + value) & 0xfffffffc;
535 if (oprnd->type == OPRND_TYPE_FCONSTANT
536 && dis_info.opinfo->opcode != CSKYV2_INST_FLRW)
541 status = dis_info.info->read_memory_func (addr, (bfd_byte *)ibytes,
542 nbytes, dis_info.info);
544 /* Address out of bounds. -> lrw rx, [pc, 0ffset]. */
545 sprintf (buf, "[pc, %d]\t// from address pool at %x", (int)value,
549 dis_info.value = addr;
550 value = csky_chars_to_number ((unsigned char *)ibytes, 4);
553 if (oprnd->type == OPRND_TYPE_FCONSTANT)
557 if (dis_info.opinfo->opcode == CSKYV2_INST_FLRW)
559 floatformat_to_double ((dis_info.info->endian == BFD_ENDIAN_BIG
560 ? &floatformat_ieee_single_big
561 : &floatformat_ieee_single_little),
564 floatformat_to_double ((dis_info.info->endian == BFD_ENDIAN_BIG
565 ? &floatformat_ieee_double_big
566 : &floatformat_ieee_double_little),
568 sprintf (buf, "%.7g", f);
572 dis_info.need_output_symbol = 1;
573 sprintf (buf, "0x%x", (unsigned int)value);
579 case OPRND_TYPE_ELRW_CONSTANT:
581 int shift = oprnd->shift;
585 dis_info.info->stop_vma = 0;
587 value = 0x80 + ((~value) & 0x7f);
589 value = value << shift;
590 addr = (dis_info.mem + value) & 0xfffffffc;
592 status = dis_info.info->read_memory_func (addr, (bfd_byte *)ibytes,
595 /* Address out of bounds. -> lrw rx, [pc, 0ffset]. */
596 sprintf (buf, "[pc, %d]\t// from address pool at %x", (int) value,
600 dis_info.value = addr;
601 value = csky_chars_to_number ((unsigned char *)ibytes, 4);
602 dis_info.need_output_symbol = 1;
603 sprintf (buf, "0x%x", (unsigned int)value);
609 case OPRND_TYPE_SFLOAT:
610 case OPRND_TYPE_DFLOAT:
612 /* This is for fmovis/fmovid, which have an internal 13-bit
613 encoding that they convert to single/double precision
614 (respectively). We'll convert the 13-bit encoding to an IEEE
615 double and then to host double format to print it.
617 4-bit exponent: bits 19:16, biased by 11.
618 8-bit mantissa: split between 24:21 and 7:4. */
622 unsigned char valbytes[8];
625 imm4 = ((inst >> 16) & 0xf);
626 imm4 = (uint64_t)(1023 - (imm4 - 11)) << 52;
628 imm8 = (uint64_t)((inst >> 4) & 0xf) << 44;
629 imm8 |= (uint64_t)((inst >> 21) & 0xf) << 48;
631 dbnum = (uint64_t)((inst >> 20) & 1) << 63;
632 dbnum |= imm4 | imm8;
634 /* Do this a byte at a time so we don't have to
635 worry about the host's endianness. */
636 valbytes[0] = dbnum & 0xff;
637 valbytes[1] = (dbnum >> 8) & 0xff;
638 valbytes[2] = (dbnum >> 16) & 0xff;
639 valbytes[3] = (dbnum >> 24) & 0xff;
640 valbytes[4] = (dbnum >> 32) & 0xff;
641 valbytes[5] = (dbnum >> 40) & 0xff;
642 valbytes[6] = (dbnum >> 48) & 0xff;
643 valbytes[7] = (dbnum >> 56) & 0xff;
645 floatformat_to_double (&floatformat_ieee_double_little, valbytes,
648 sprintf (buf, "%.7g", fvalue);
652 case OPRND_TYPE_HFLOAT_FMOVI:
653 case OPRND_TYPE_SFLOAT_FMOVI:
657 imm4 = ((inst >> 16) & 0xf);
658 imm4 = (138 - imm4) << 23;
660 imm8 = ((inst >> 8) & 0x3);
661 imm8 |= (((inst >> 20) & 0x3f) << 2);
664 value = ((inst >> 5) & 1) << 31;
665 value |= imm4 | imm8;
667 imm4 = 138 - (imm4 >> 23);
675 memcpy (&f, &value, sizeof (float));
676 sprintf (buf, "%.7g\t// imm9:%4d, imm4:%2d", f, imm8, imm4);
682 case OPRND_TYPE_DFLOAT_FMOVI:
687 imm4 = ((inst >> 16) & 0xf);
688 imm4 = (1034 - imm4) << 52;
690 imm8 = ((inst >> 8) & 0x3);
691 imm8 |= (((inst >> 20) & 0x3f) << 2);
694 dvalue = (((uint64_t)inst >> 5) & 1) << 63;
695 dvalue |= imm4 | imm8;
697 imm4 = 1034 - (imm4 >> 52);
704 memcpy (&d, &dvalue, sizeof (double));
705 sprintf (buf, "%.7g\t// imm9:%4ld, imm4:%2ld", d, (long) imm8, (long) imm4);
710 case OPRND_TYPE_LABEL_WITH_BRACKET:
711 sprintf (buf, "[0x%x]", (unsigned int)value);
713 strcat (str, "\t// the offset is based on .data");
715 case OPRND_TYPE_OIMM3b:
716 case OPRND_TYPE_OIMM4b:
717 case OPRND_TYPE_OIMM5b:
718 case OPRND_TYPE_OIMM5b_IDLY:
719 case OPRND_TYPE_OIMM8b:
720 case OPRND_TYPE_OIMM12b:
721 case OPRND_TYPE_OIMM16b:
722 case OPRND_TYPE_OIMM18b:
724 sprintf (buf, "%d", (int)value);
727 case OPRND_TYPE_OIMM5b_BMASKI:
728 if (value > 32 || value < 16)
733 sprintf (buf, "%d", (int)(value + 1));
737 case OPRND_TYPE_FREGLIST_DASH:
738 if (IS_CSKY_V2 (mach_flag))
742 if (dis_info.isa & CSKY_ISA_FLOAT_7E60
743 && (strstr (str, "fstm") != NULL
744 || strstr (str, "fldm") != NULL))
747 vry = vrx + (value >> 5);
752 vry = vrx + (value >> 4);
754 sprintf (buf, "fr%d-fr%d", vrx, vry);
758 case OPRND_TYPE_REGLIST_DASH:
759 if (IS_CSKY_V1 (mach_flag))
761 sprintf (buf, "%s-r15", get_gr_name (value));
766 if ((value & 0x1f) + (value >> 5) > 31)
771 strcat (str, get_gr_name ((value >> 5)));
773 strcat (str, get_gr_name ((value & 0x1f) + (value >> 5)));
776 case OPRND_TYPE_PSR_BITS_LIST:
778 struct psrbit const *bits;
779 int first_oprnd = true;
781 if (IS_CSKY_V1 (mach_flag))
788 bits = cskyv1_psr_bits;
791 bits = cskyv2_psr_bits;
792 while (value != 0 && bits[i].name != NULL)
794 if (value & bits[i].value)
798 strcat (str, bits[i].name);
799 value &= ~bits[i].value;
806 case OPRND_TYPE_REGbsp:
807 if (IS_CSKY_V1 (mach_flag))
808 sprintf(buf, "(%s)", get_gr_name (0));
810 sprintf(buf, "(%s)", get_gr_name (14));
813 case OPRND_TYPE_REGsp:
814 if (IS_CSKY_V1 (mach_flag))
815 strcat (str, get_gr_name (0));
817 strcat (str, get_gr_name (14));
819 case OPRND_TYPE_REGnr4_r7:
820 case OPRND_TYPE_AREG_WITH_BRACKET:
822 strcat (str, get_gr_name (value));
825 case OPRND_TYPE_AREG_WITH_LSHIFT:
826 strcat (str, get_gr_name (value >> 5));
827 strcat (str, " << ");
828 if ((value & 0x1f) == 0x1)
830 else if ((value & 0x1f) == 0x2)
832 else if ((value & 0x1f) == 0x4)
834 else if ((value & 0x1f) == 0x8)
837 case OPRND_TYPE_AREG_WITH_LSHIFT_FPU:
838 strcat (str, get_gr_name (value >> 2));
839 strcat (str, " << ");
840 if ((value & 0x3) == 0x0)
842 else if ((value & 0x3) == 0x1)
844 else if ((value & 0x3) == 0x2)
846 else if ((value & 0x3) == 0x3)
849 case OPRND_TYPE_VREG_WITH_INDEX:
851 unsigned freg_val = value & 0xf;
852 unsigned index_val = (value >> 4) & 0xf;
853 sprintf (buf, "vr%d[%d]", freg_val, index_val);
857 case OPRND_TYPE_FREG_WITH_INDEX:
859 unsigned freg_val = value & 0xf;
860 unsigned index_val = (value >> 4) & 0xf;
861 sprintf (buf, "fr%d[%d]", freg_val, index_val);
865 case OPRND_TYPE_REGr4_r7:
866 if (IS_CSKY_V1 (mach_flag))
868 sprintf (buf, "%s-%s", get_gr_name (4), get_gr_name (7));
872 case OPRND_TYPE_CONST1:
875 case OPRND_TYPE_REG_r1a:
876 case OPRND_TYPE_REG_r1b:
877 strcat (str, get_gr_name (1));
879 case OPRND_TYPE_REG_r28:
880 strcat (str, get_gr_name (28));
882 case OPRND_TYPE_REGLIST_DASH_COMMA:
883 /* 16-bit reglist. */
886 strcat (str, get_gr_name (4));
887 if ((value & 0xf) > 1)
890 strcat (str, get_gr_name ((value & 0xf) + 3));
898 strcat (str, get_gr_name (15));
902 if (dis_info.opinfo->oprnd.oprnds[0].mask != OPRND_MASK_0_4)
904 /* 32bits reglist. */
908 strcat (str, get_gr_name (16));
909 if ((value & 0x7) > 1)
912 strcat (str, get_gr_name ((value & 0x7) + 15));
919 strcat (str, get_gr_name (28));
922 case OPRND_TYPE_UNCOND10b:
923 case OPRND_TYPE_UNCOND16b:
924 case OPRND_TYPE_COND10b:
925 case OPRND_TYPE_COND16b:
927 int shift = oprnd->shift;
929 if (value & ((max >> 1) + 1))
931 if (is_extern_symbol (dis_info.info, dis_info.mem))
934 value = dis_info.mem + (value << shift);
935 sprintf (buf, "0x%x", (unsigned int)value);
937 dis_info.need_output_symbol = 1;
938 dis_info.value = value;
950 csky_print_operand (char *str, struct operand const *oprnd,
951 CSKY_INST_TYPE inst, int reloc)
956 if (oprnd->mask == HAS_SUB_OPERAND)
958 struct soperand *sop = (struct soperand *)oprnd;
959 if (oprnd->type == OPRND_TYPE_BRACKET)
964 else if (oprnd->type == OPRND_TYPE_ABRACKET)
970 ret = csky_print_operand (str, &sop->subs[0], inst, reloc);
974 ret = csky_print_operand (str, &sop->subs[1], inst, reloc);
978 return csky_output_operand (str, oprnd, inst, reloc);
982 csky_print_operands (char *str, struct csky_opcode_info const *pinfo,
983 struct disassemble_info *info, CSKY_INST_TYPE inst,
988 if (pinfo->operand_num)
990 if (pinfo->operand_num == -1)
992 ret = csky_print_operand (str, &pinfo->oprnd.oprnds[i], inst, reloc);
997 for (; i < pinfo->operand_num; i++)
1001 ret = csky_print_operand (str, &pinfo->oprnd.oprnds[i], inst, reloc);
1005 info->fprintf_func (info->stream, "%s", str);
1006 if (dis_info.need_output_symbol)
1008 info->fprintf_func (info->stream, "\t// ");
1009 info->print_address_func (dis_info.value, dis_info.info);
1015 number_to_chars_littleendian (char *buf, CSKY_INST_TYPE val, int n)
1021 *buf++ = val & 0xff;
1026 #define CSKY_READ_DATA() \
1028 status = info->read_memory_func (memaddr, buf, 2, info); \
1031 info->memory_error_func (status, memaddr, info); \
1034 if (info->endian == BFD_ENDIAN_BIG) \
1035 inst |= (buf[0] << 8) | buf[1]; \
1036 else if (info->endian == BFD_ENDIAN_LITTLE) \
1037 inst |= (buf[1] << 8) | buf[0]; \
1040 info->bytes_per_chunk += 2; \
1045 print_insn_csky (bfd_vma memaddr, struct disassemble_info *info)
1047 unsigned char buf[4];
1048 CSKY_INST_TYPE inst = 0;
1051 unsigned long given;
1052 int is_data = false;
1053 void (*printer) (bfd_vma, struct disassemble_info *, long);
1054 unsigned int size = 4;
1056 memset (str, 0, sizeof (str));
1057 info->bytes_per_chunk = 0;
1058 info->bytes_per_chunk = 0;
1059 dis_info.mem = memaddr;
1060 dis_info.info = info;
1061 dis_info.need_output_symbol = 0;
1063 if (info->disassembler_options)
1065 parse_csky_dis_options (info->disassembler_options);
1066 info->disassembler_options = NULL;
1069 if (mach_flag != INIT_MACH_FLAG && mach_flag != BINARY_MACH_FLAG)
1070 info->mach = mach_flag;
1071 else if (mach_flag == INIT_MACH_FLAG)
1073 mach_flag = info->mach;
1074 dis_info.isa = CSKY_DEFAULT_ISA;
1077 if (mach_flag == BINARY_MACH_FLAG && info->endian == BFD_ENDIAN_UNKNOWN)
1079 info->endian = BFD_ENDIAN_LITTLE;
1080 dis_info.isa = CSKY_DEFAULT_ISA;
1083 /* First check the full symtab for a mapping symbol, even if there
1084 are no usable non-mapping symbols for this address. */
1085 if (info->symtab_size != 0
1086 && bfd_asymbol_flavour (*info->symtab) == bfd_target_elf_flavour)
1091 enum sym_type type = CUR_TEXT;
1093 if (memaddr <= last_map_addr)
1095 /* Start scanning at the start of the function, or wherever
1096 we finished last time. */
1098 if (n < last_map_sym)
1101 /* Scan up to the location being disassembled. */
1102 for (; n < info->symtab_size; n++)
1104 addr = bfd_asymbol_value (info->symtab[n]);
1107 if ((info->section == NULL
1108 || info->section == info->symtab[n]->section)
1109 && get_sym_code_type (info, n, &type))
1112 last_map_sym = last_sym;
1114 is_data = (last_type == CUR_DATA);
1117 size = 4 - ( memaddr & 3);
1118 for (n = last_sym + 1; n < info->symtab_size; n++)
1120 addr = bfd_asymbol_value (info->symtab[n]);
1123 if (addr - memaddr < size)
1124 size = addr - memaddr;
1128 /* If the next symbol is after three bytes, we need to
1129 print only part of the data, so that we can use either
1132 size = (memaddr & 1) ? 1 : 2;
1135 info->bytes_per_line = 4;
1141 /* Size was already set above. */
1142 info->bytes_per_chunk = size;
1143 printer = print_insn_data;
1145 status = info->read_memory_func (memaddr, (bfd_byte *) buf, size, info);
1147 if (info->endian == BFD_ENDIAN_LITTLE)
1148 for (i = size - 1; i >= 0; i--)
1149 given = buf[i] | (given << 8);
1151 for (i = 0; i < (int) size; i++)
1152 given = buf[i] | (given << 8);
1154 printer (memaddr, info, given);
1155 return info->bytes_per_chunk;
1158 /* Handle instructions. */
1160 if ((inst & 0xc000) == 0xc000 && IS_CSKY_V2 (mach_flag))
1162 /* It's a 32-bit instruction. */
1165 if (info->buffer && (info->endian == BFD_ENDIAN_LITTLE))
1167 char* src = (char *)(info->buffer
1168 + ((memaddr - 4 - info->buffer_vma)
1169 * info->octets_per_byte));
1170 if (info->endian == BFD_ENDIAN_LITTLE)
1171 number_to_chars_littleendian (src, inst, 4);
1175 if (IS_CSKY_V1 (mach_flag))
1176 g_opcodeP = csky_v1_opcodes;
1178 g_opcodeP = csky_v2_opcodes;
1182 struct csky_opcode const *op;
1183 struct csky_opcode_info const *pinfo = NULL;
1186 memset (str, 0, sizeof (str));
1187 op = csky_find_inst_info (&pinfo, inst, info->bytes_per_chunk);
1190 if (IS_CSKY_V1 (mach_flag))
1191 info->fprintf_func (info->stream, ".short: 0x%04x",
1192 (unsigned short)inst);
1194 info->fprintf_func (info->stream, ".long: 0x%08x",
1195 (unsigned int)inst);
1196 return info->bytes_per_chunk;
1199 if (info->bytes_per_chunk == 2)
1200 reloc = op->reloc16;
1202 reloc = op->reloc32;
1203 dis_info.opinfo = pinfo;
1204 strcat (str, op->mnemonic);
1206 if (csky_print_operands (str, pinfo, info, inst, reloc))
1212 return info->bytes_per_chunk;